Commit | Line | Data |
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c906108c | 1 | /* Everything about breakpoints, for GDB. |
8926118c | 2 | |
32d0add0 | 3 | Copyright (C) 1986-2015 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
a6d9a66e | 21 | #include "arch-utils.h" |
c906108c | 22 | #include <ctype.h> |
776592bf | 23 | #include "hashtab.h" |
c906108c SS |
24 | #include "symtab.h" |
25 | #include "frame.h" | |
26 | #include "breakpoint.h" | |
1042e4c0 | 27 | #include "tracepoint.h" |
c906108c SS |
28 | #include "gdbtypes.h" |
29 | #include "expression.h" | |
30 | #include "gdbcore.h" | |
31 | #include "gdbcmd.h" | |
32 | #include "value.h" | |
33 | #include "command.h" | |
34 | #include "inferior.h" | |
45741a9c | 35 | #include "infrun.h" |
c906108c SS |
36 | #include "gdbthread.h" |
37 | #include "target.h" | |
38 | #include "language.h" | |
50f182aa | 39 | #include "gdb-demangle.h" |
0ba1096a | 40 | #include "filenames.h" |
c906108c SS |
41 | #include "annotate.h" |
42 | #include "symfile.h" | |
43 | #include "objfiles.h" | |
0378c332 | 44 | #include "source.h" |
c5f0f3d0 | 45 | #include "linespec.h" |
c94fdfd0 | 46 | #include "completer.h" |
5b7f31a4 | 47 | #include "gdb.h" |
8b93c638 | 48 | #include "ui-out.h" |
e1507482 | 49 | #include "cli/cli-script.h" |
fe898f56 | 50 | #include "block.h" |
a77053c2 | 51 | #include "solib.h" |
84acb35a JJ |
52 | #include "solist.h" |
53 | #include "observer.h" | |
765dc015 | 54 | #include "memattr.h" |
f7f9143b | 55 | #include "ada-lang.h" |
d1aa2f50 | 56 | #include "top.h" |
79a45b7d | 57 | #include "valprint.h" |
4efc6507 | 58 | #include "jit.h" |
65d79d4b | 59 | #include "parser-defs.h" |
55aa24fb SDJ |
60 | #include "gdb_regex.h" |
61 | #include "probe.h" | |
e9cafbcc | 62 | #include "cli/cli-utils.h" |
be34f849 | 63 | #include "continuations.h" |
1bfeeb0f JL |
64 | #include "stack.h" |
65 | #include "skip.h" | |
b775012e | 66 | #include "ax-gdb.h" |
e2e4d78b | 67 | #include "dummy-frame.h" |
5589af0e | 68 | #include "interps.h" |
d3ce09f5 | 69 | #include "format.h" |
f00aae0f | 70 | #include "location.h" |
cfc31633 | 71 | #include "thread-fsm.h" |
d3ce09f5 | 72 | |
1042e4c0 SS |
73 | /* readline include files */ |
74 | #include "readline/readline.h" | |
75 | #include "readline/history.h" | |
76 | ||
77 | /* readline defines this. */ | |
78 | #undef savestring | |
79 | ||
034dad6f | 80 | #include "mi/mi-common.h" |
6dddc817 | 81 | #include "extension.h" |
104c1213 | 82 | |
e7e8980f YQ |
83 | /* Enums for exception-handling support. */ |
84 | enum exception_event_kind | |
85 | { | |
86 | EX_EVENT_THROW, | |
591f19e8 | 87 | EX_EVENT_RETHROW, |
e7e8980f YQ |
88 | EX_EVENT_CATCH |
89 | }; | |
90 | ||
4a64f543 | 91 | /* Prototypes for local functions. */ |
c906108c | 92 | |
a14ed312 | 93 | static void enable_delete_command (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void enable_once_command (char *, int); |
c906108c | 96 | |
816338b5 SS |
97 | static void enable_count_command (char *, int); |
98 | ||
a14ed312 | 99 | static void disable_command (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void enable_command (char *, int); |
c906108c | 102 | |
95a42b64 TT |
103 | static void map_breakpoint_numbers (char *, void (*) (struct breakpoint *, |
104 | void *), | |
105 | void *); | |
c906108c | 106 | |
a14ed312 | 107 | static void ignore_command (char *, int); |
c906108c | 108 | |
4efb68b1 | 109 | static int breakpoint_re_set_one (void *); |
c906108c | 110 | |
348d480f PA |
111 | static void breakpoint_re_set_default (struct breakpoint *); |
112 | ||
f00aae0f KS |
113 | static void |
114 | create_sals_from_location_default (const struct event_location *location, | |
115 | struct linespec_result *canonical, | |
116 | enum bptype type_wanted); | |
983af33b SDJ |
117 | |
118 | static void create_breakpoints_sal_default (struct gdbarch *, | |
119 | struct linespec_result *, | |
e7e0cddf | 120 | char *, char *, enum bptype, |
983af33b SDJ |
121 | enum bpdisp, int, int, |
122 | int, | |
123 | const struct breakpoint_ops *, | |
44f238bb | 124 | int, int, int, unsigned); |
983af33b | 125 | |
f00aae0f KS |
126 | static void decode_location_default (struct breakpoint *b, |
127 | const struct event_location *location, | |
128 | struct symtabs_and_lines *sals); | |
983af33b | 129 | |
a14ed312 | 130 | static void clear_command (char *, int); |
c906108c | 131 | |
a14ed312 | 132 | static void catch_command (char *, int); |
c906108c | 133 | |
a9634178 | 134 | static int can_use_hardware_watchpoint (struct value *); |
c906108c | 135 | |
98deb0da | 136 | static void break_command_1 (char *, int, int); |
c906108c | 137 | |
a14ed312 | 138 | static void mention (struct breakpoint *); |
c906108c | 139 | |
348d480f PA |
140 | static struct breakpoint *set_raw_breakpoint_without_location (struct gdbarch *, |
141 | enum bptype, | |
c0a91b2b | 142 | const struct breakpoint_ops *); |
3742cc8b YQ |
143 | static struct bp_location *add_location_to_breakpoint (struct breakpoint *, |
144 | const struct symtab_and_line *); | |
145 | ||
4a64f543 MS |
146 | /* This function is used in gdbtk sources and thus can not be made |
147 | static. */ | |
63c252f8 | 148 | struct breakpoint *set_raw_breakpoint (struct gdbarch *gdbarch, |
348d480f | 149 | struct symtab_and_line, |
c0a91b2b TT |
150 | enum bptype, |
151 | const struct breakpoint_ops *); | |
c906108c | 152 | |
06edf0c0 PA |
153 | static struct breakpoint * |
154 | momentary_breakpoint_from_master (struct breakpoint *orig, | |
155 | enum bptype type, | |
a1aa2221 LM |
156 | const struct breakpoint_ops *ops, |
157 | int loc_enabled); | |
06edf0c0 | 158 | |
76897487 KB |
159 | static void breakpoint_adjustment_warning (CORE_ADDR, CORE_ADDR, int, int); |
160 | ||
a6d9a66e UW |
161 | static CORE_ADDR adjust_breakpoint_address (struct gdbarch *gdbarch, |
162 | CORE_ADDR bpaddr, | |
88f7da05 | 163 | enum bptype bptype); |
76897487 | 164 | |
6c95b8df PA |
165 | static void describe_other_breakpoints (struct gdbarch *, |
166 | struct program_space *, CORE_ADDR, | |
5af949e3 | 167 | struct obj_section *, int); |
c906108c | 168 | |
85d721b8 PA |
169 | static int watchpoint_locations_match (struct bp_location *loc1, |
170 | struct bp_location *loc2); | |
171 | ||
f1310107 TJB |
172 | static int breakpoint_location_address_match (struct bp_location *bl, |
173 | struct address_space *aspace, | |
174 | CORE_ADDR addr); | |
175 | ||
a14ed312 | 176 | static void breakpoints_info (char *, int); |
c906108c | 177 | |
d77f58be SS |
178 | static void watchpoints_info (char *, int); |
179 | ||
e5a67952 MS |
180 | static int breakpoint_1 (char *, int, |
181 | int (*) (const struct breakpoint *)); | |
c906108c | 182 | |
4efb68b1 | 183 | static int breakpoint_cond_eval (void *); |
c906108c | 184 | |
4efb68b1 | 185 | static void cleanup_executing_breakpoints (void *); |
c906108c | 186 | |
a14ed312 | 187 | static void commands_command (char *, int); |
c906108c | 188 | |
a14ed312 | 189 | static void condition_command (char *, int); |
c906108c | 190 | |
c5aa993b JM |
191 | typedef enum |
192 | { | |
193 | mark_inserted, | |
194 | mark_uninserted | |
195 | } | |
196 | insertion_state_t; | |
c906108c | 197 | |
0bde7532 | 198 | static int remove_breakpoint (struct bp_location *, insertion_state_t); |
6c95b8df | 199 | static int remove_breakpoint_1 (struct bp_location *, insertion_state_t); |
c906108c | 200 | |
e514a9d6 | 201 | static enum print_stop_action print_bp_stop_message (bpstat bs); |
c906108c | 202 | |
4efb68b1 | 203 | static int watchpoint_check (void *); |
c906108c | 204 | |
a14ed312 | 205 | static void maintenance_info_breakpoints (char *, int); |
c906108c | 206 | |
a14ed312 | 207 | static int hw_breakpoint_used_count (void); |
c906108c | 208 | |
a1398e0c PA |
209 | static int hw_watchpoint_use_count (struct breakpoint *); |
210 | ||
211 | static int hw_watchpoint_used_count_others (struct breakpoint *except, | |
212 | enum bptype type, | |
213 | int *other_type_used); | |
c906108c | 214 | |
a14ed312 | 215 | static void hbreak_command (char *, int); |
c906108c | 216 | |
a14ed312 | 217 | static void thbreak_command (char *, int); |
c906108c | 218 | |
816338b5 SS |
219 | static void enable_breakpoint_disp (struct breakpoint *, enum bpdisp, |
220 | int count); | |
c906108c | 221 | |
a14ed312 | 222 | static void stop_command (char *arg, int from_tty); |
7a292a7a | 223 | |
a14ed312 | 224 | static void stopin_command (char *arg, int from_tty); |
7a292a7a | 225 | |
a14ed312 | 226 | static void stopat_command (char *arg, int from_tty); |
7a292a7a | 227 | |
a14ed312 | 228 | static void tcatch_command (char *arg, int from_tty); |
7a292a7a | 229 | |
fe3f5fa8 | 230 | static void free_bp_location (struct bp_location *loc); |
f431efe5 PA |
231 | static void incref_bp_location (struct bp_location *loc); |
232 | static void decref_bp_location (struct bp_location **loc); | |
fe3f5fa8 | 233 | |
39d61571 | 234 | static struct bp_location *allocate_bp_location (struct breakpoint *bpt); |
a5606eee | 235 | |
44702360 PA |
236 | /* update_global_location_list's modes of operation wrt to whether to |
237 | insert locations now. */ | |
238 | enum ugll_insert_mode | |
239 | { | |
240 | /* Don't insert any breakpoint locations into the inferior, only | |
241 | remove already-inserted locations that no longer should be | |
242 | inserted. Functions that delete a breakpoint or breakpoints | |
243 | should specify this mode, so that deleting a breakpoint doesn't | |
244 | have the side effect of inserting the locations of other | |
245 | breakpoints that are marked not-inserted, but should_be_inserted | |
246 | returns true on them. | |
247 | ||
248 | This behavior is useful is situations close to tear-down -- e.g., | |
249 | after an exec, while the target still has execution, but | |
250 | breakpoint shadows of the previous executable image should *NOT* | |
251 | be restored to the new image; or before detaching, where the | |
252 | target still has execution and wants to delete breakpoints from | |
253 | GDB's lists, and all breakpoints had already been removed from | |
254 | the inferior. */ | |
255 | UGLL_DONT_INSERT, | |
256 | ||
a25a5a45 PA |
257 | /* May insert breakpoints iff breakpoints_should_be_inserted_now |
258 | claims breakpoints should be inserted now. */ | |
04086b45 PA |
259 | UGLL_MAY_INSERT, |
260 | ||
a25a5a45 PA |
261 | /* Insert locations now, irrespective of |
262 | breakpoints_should_be_inserted_now. E.g., say all threads are | |
263 | stopped right now, and the user did "continue". We need to | |
264 | insert breakpoints _before_ resuming the target, but | |
265 | UGLL_MAY_INSERT wouldn't insert them, because | |
266 | breakpoints_should_be_inserted_now returns false at that point, | |
267 | as no thread is running yet. */ | |
04086b45 | 268 | UGLL_INSERT |
44702360 PA |
269 | }; |
270 | ||
271 | static void update_global_location_list (enum ugll_insert_mode); | |
a5606eee | 272 | |
44702360 | 273 | static void update_global_location_list_nothrow (enum ugll_insert_mode); |
74960c60 | 274 | |
d77f58be | 275 | static int is_hardware_watchpoint (const struct breakpoint *bpt); |
74960c60 VP |
276 | |
277 | static void insert_breakpoint_locations (void); | |
a5606eee | 278 | |
1042e4c0 SS |
279 | static void tracepoints_info (char *, int); |
280 | ||
281 | static void delete_trace_command (char *, int); | |
282 | ||
283 | static void enable_trace_command (char *, int); | |
284 | ||
285 | static void disable_trace_command (char *, int); | |
286 | ||
287 | static void trace_pass_command (char *, int); | |
288 | ||
558a9d82 YQ |
289 | static void set_tracepoint_count (int num); |
290 | ||
9c06b0b4 TJB |
291 | static int is_masked_watchpoint (const struct breakpoint *b); |
292 | ||
b775012e LM |
293 | static struct bp_location **get_first_locp_gte_addr (CORE_ADDR address); |
294 | ||
983af33b SDJ |
295 | /* Return 1 if B refers to a static tracepoint set by marker ("-m"), zero |
296 | otherwise. */ | |
297 | ||
298 | static int strace_marker_p (struct breakpoint *b); | |
0fb4aa4b | 299 | |
2060206e PA |
300 | /* The breakpoint_ops structure to be inherited by all breakpoint_ops |
301 | that are implemented on top of software or hardware breakpoints | |
302 | (user breakpoints, internal and momentary breakpoints, etc.). */ | |
303 | static struct breakpoint_ops bkpt_base_breakpoint_ops; | |
304 | ||
305 | /* Internal breakpoints class type. */ | |
06edf0c0 | 306 | static struct breakpoint_ops internal_breakpoint_ops; |
2060206e PA |
307 | |
308 | /* Momentary breakpoints class type. */ | |
06edf0c0 PA |
309 | static struct breakpoint_ops momentary_breakpoint_ops; |
310 | ||
e2e4d78b JK |
311 | /* Momentary breakpoints for bp_longjmp and bp_exception class type. */ |
312 | static struct breakpoint_ops longjmp_breakpoint_ops; | |
313 | ||
2060206e PA |
314 | /* The breakpoint_ops structure to be used in regular user created |
315 | breakpoints. */ | |
316 | struct breakpoint_ops bkpt_breakpoint_ops; | |
317 | ||
55aa24fb SDJ |
318 | /* Breakpoints set on probes. */ |
319 | static struct breakpoint_ops bkpt_probe_breakpoint_ops; | |
320 | ||
e7e0cddf | 321 | /* Dynamic printf class type. */ |
c5867ab6 | 322 | struct breakpoint_ops dprintf_breakpoint_ops; |
e7e0cddf | 323 | |
d3ce09f5 SS |
324 | /* The style in which to perform a dynamic printf. This is a user |
325 | option because different output options have different tradeoffs; | |
326 | if GDB does the printing, there is better error handling if there | |
327 | is a problem with any of the arguments, but using an inferior | |
328 | function lets you have special-purpose printers and sending of | |
329 | output to the same place as compiled-in print functions. */ | |
330 | ||
331 | static const char dprintf_style_gdb[] = "gdb"; | |
332 | static const char dprintf_style_call[] = "call"; | |
333 | static const char dprintf_style_agent[] = "agent"; | |
334 | static const char *const dprintf_style_enums[] = { | |
335 | dprintf_style_gdb, | |
336 | dprintf_style_call, | |
337 | dprintf_style_agent, | |
338 | NULL | |
339 | }; | |
340 | static const char *dprintf_style = dprintf_style_gdb; | |
341 | ||
342 | /* The function to use for dynamic printf if the preferred style is to | |
343 | call into the inferior. The value is simply a string that is | |
344 | copied into the command, so it can be anything that GDB can | |
345 | evaluate to a callable address, not necessarily a function name. */ | |
346 | ||
347 | static char *dprintf_function = ""; | |
348 | ||
349 | /* The channel to use for dynamic printf if the preferred style is to | |
350 | call into the inferior; if a nonempty string, it will be passed to | |
351 | the call as the first argument, with the format string as the | |
352 | second. As with the dprintf function, this can be anything that | |
353 | GDB knows how to evaluate, so in addition to common choices like | |
354 | "stderr", this could be an app-specific expression like | |
355 | "mystreams[curlogger]". */ | |
356 | ||
357 | static char *dprintf_channel = ""; | |
358 | ||
359 | /* True if dprintf commands should continue to operate even if GDB | |
360 | has disconnected. */ | |
361 | static int disconnected_dprintf = 1; | |
362 | ||
5cea2a26 PA |
363 | /* A reference-counted struct command_line. This lets multiple |
364 | breakpoints share a single command list. */ | |
365 | struct counted_command_line | |
366 | { | |
367 | /* The reference count. */ | |
368 | int refc; | |
369 | ||
370 | /* The command list. */ | |
371 | struct command_line *commands; | |
372 | }; | |
373 | ||
374 | struct command_line * | |
375 | breakpoint_commands (struct breakpoint *b) | |
376 | { | |
377 | return b->commands ? b->commands->commands : NULL; | |
378 | } | |
3daf8fe5 | 379 | |
f3b1572e PA |
380 | /* Flag indicating that a command has proceeded the inferior past the |
381 | current breakpoint. */ | |
382 | ||
383 | static int breakpoint_proceeded; | |
384 | ||
956a9fb9 | 385 | const char * |
2cec12e5 AR |
386 | bpdisp_text (enum bpdisp disp) |
387 | { | |
4a64f543 MS |
388 | /* NOTE: the following values are a part of MI protocol and |
389 | represent values of 'disp' field returned when inferior stops at | |
390 | a breakpoint. */ | |
bc043ef3 | 391 | static const char * const bpdisps[] = {"del", "dstp", "dis", "keep"}; |
cc59ec59 | 392 | |
2cec12e5 AR |
393 | return bpdisps[(int) disp]; |
394 | } | |
c906108c | 395 | |
4a64f543 | 396 | /* Prototypes for exported functions. */ |
c906108c | 397 | /* If FALSE, gdb will not use hardware support for watchpoints, even |
4a64f543 | 398 | if such is available. */ |
c906108c SS |
399 | static int can_use_hw_watchpoints; |
400 | ||
920d2a44 AC |
401 | static void |
402 | show_can_use_hw_watchpoints (struct ui_file *file, int from_tty, | |
403 | struct cmd_list_element *c, | |
404 | const char *value) | |
405 | { | |
3e43a32a MS |
406 | fprintf_filtered (file, |
407 | _("Debugger's willingness to use " | |
408 | "watchpoint hardware is %s.\n"), | |
920d2a44 AC |
409 | value); |
410 | } | |
411 | ||
fa8d40ab JJ |
412 | /* If AUTO_BOOLEAN_FALSE, gdb will not attempt to create pending breakpoints. |
413 | If AUTO_BOOLEAN_TRUE, gdb will automatically create pending breakpoints | |
4a64f543 | 414 | for unrecognized breakpoint locations. |
fa8d40ab JJ |
415 | If AUTO_BOOLEAN_AUTO, gdb will query when breakpoints are unrecognized. */ |
416 | static enum auto_boolean pending_break_support; | |
920d2a44 AC |
417 | static void |
418 | show_pending_break_support (struct ui_file *file, int from_tty, | |
419 | struct cmd_list_element *c, | |
420 | const char *value) | |
421 | { | |
3e43a32a MS |
422 | fprintf_filtered (file, |
423 | _("Debugger's behavior regarding " | |
424 | "pending breakpoints is %s.\n"), | |
920d2a44 AC |
425 | value); |
426 | } | |
fa8d40ab | 427 | |
765dc015 | 428 | /* If 1, gdb will automatically use hardware breakpoints for breakpoints |
4a64f543 | 429 | set with "break" but falling in read-only memory. |
765dc015 VP |
430 | If 0, gdb will warn about such breakpoints, but won't automatically |
431 | use hardware breakpoints. */ | |
432 | static int automatic_hardware_breakpoints; | |
433 | static void | |
434 | show_automatic_hardware_breakpoints (struct ui_file *file, int from_tty, | |
435 | struct cmd_list_element *c, | |
436 | const char *value) | |
437 | { | |
3e43a32a MS |
438 | fprintf_filtered (file, |
439 | _("Automatic usage of hardware breakpoints is %s.\n"), | |
765dc015 VP |
440 | value); |
441 | } | |
442 | ||
a25a5a45 PA |
443 | /* If on, GDB keeps breakpoints inserted even if the inferior is |
444 | stopped, and immediately inserts any new breakpoints as soon as | |
445 | they're created. If off (default), GDB keeps breakpoints off of | |
446 | the target as long as possible. That is, it delays inserting | |
447 | breakpoints until the next resume, and removes them again when the | |
448 | target fully stops. This is a bit safer in case GDB crashes while | |
449 | processing user input. */ | |
450 | static int always_inserted_mode = 0; | |
72d0e2c5 | 451 | |
33e5cbd6 | 452 | static void |
74960c60 | 453 | show_always_inserted_mode (struct ui_file *file, int from_tty, |
33e5cbd6 | 454 | struct cmd_list_element *c, const char *value) |
74960c60 | 455 | { |
a25a5a45 PA |
456 | fprintf_filtered (file, _("Always inserted breakpoint mode is %s.\n"), |
457 | value); | |
74960c60 VP |
458 | } |
459 | ||
b57bacec PA |
460 | /* See breakpoint.h. */ |
461 | ||
33e5cbd6 | 462 | int |
a25a5a45 | 463 | breakpoints_should_be_inserted_now (void) |
33e5cbd6 | 464 | { |
a25a5a45 PA |
465 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
466 | { | |
467 | /* If breakpoints are global, they should be inserted even if no | |
468 | thread under gdb's control is running, or even if there are | |
469 | no threads under GDB's control yet. */ | |
470 | return 1; | |
471 | } | |
472 | else if (target_has_execution) | |
473 | { | |
372316f1 PA |
474 | struct thread_info *tp; |
475 | ||
a25a5a45 PA |
476 | if (always_inserted_mode) |
477 | { | |
478 | /* The user wants breakpoints inserted even if all threads | |
479 | are stopped. */ | |
480 | return 1; | |
481 | } | |
482 | ||
b57bacec PA |
483 | if (threads_are_executing ()) |
484 | return 1; | |
372316f1 PA |
485 | |
486 | /* Don't remove breakpoints yet if, even though all threads are | |
487 | stopped, we still have events to process. */ | |
488 | ALL_NON_EXITED_THREADS (tp) | |
489 | if (tp->resumed | |
490 | && tp->suspend.waitstatus_pending_p) | |
491 | return 1; | |
a25a5a45 PA |
492 | } |
493 | return 0; | |
33e5cbd6 | 494 | } |
765dc015 | 495 | |
b775012e LM |
496 | static const char condition_evaluation_both[] = "host or target"; |
497 | ||
498 | /* Modes for breakpoint condition evaluation. */ | |
499 | static const char condition_evaluation_auto[] = "auto"; | |
500 | static const char condition_evaluation_host[] = "host"; | |
501 | static const char condition_evaluation_target[] = "target"; | |
502 | static const char *const condition_evaluation_enums[] = { | |
503 | condition_evaluation_auto, | |
504 | condition_evaluation_host, | |
505 | condition_evaluation_target, | |
506 | NULL | |
507 | }; | |
508 | ||
509 | /* Global that holds the current mode for breakpoint condition evaluation. */ | |
510 | static const char *condition_evaluation_mode_1 = condition_evaluation_auto; | |
511 | ||
512 | /* Global that we use to display information to the user (gets its value from | |
513 | condition_evaluation_mode_1. */ | |
514 | static const char *condition_evaluation_mode = condition_evaluation_auto; | |
515 | ||
516 | /* Translate a condition evaluation mode MODE into either "host" | |
517 | or "target". This is used mostly to translate from "auto" to the | |
518 | real setting that is being used. It returns the translated | |
519 | evaluation mode. */ | |
520 | ||
521 | static const char * | |
522 | translate_condition_evaluation_mode (const char *mode) | |
523 | { | |
524 | if (mode == condition_evaluation_auto) | |
525 | { | |
526 | if (target_supports_evaluation_of_breakpoint_conditions ()) | |
527 | return condition_evaluation_target; | |
528 | else | |
529 | return condition_evaluation_host; | |
530 | } | |
531 | else | |
532 | return mode; | |
533 | } | |
534 | ||
535 | /* Discovers what condition_evaluation_auto translates to. */ | |
536 | ||
537 | static const char * | |
538 | breakpoint_condition_evaluation_mode (void) | |
539 | { | |
540 | return translate_condition_evaluation_mode (condition_evaluation_mode); | |
541 | } | |
542 | ||
543 | /* Return true if GDB should evaluate breakpoint conditions or false | |
544 | otherwise. */ | |
545 | ||
546 | static int | |
547 | gdb_evaluates_breakpoint_condition_p (void) | |
548 | { | |
549 | const char *mode = breakpoint_condition_evaluation_mode (); | |
550 | ||
551 | return (mode == condition_evaluation_host); | |
552 | } | |
553 | ||
a14ed312 | 554 | void _initialize_breakpoint (void); |
c906108c | 555 | |
c906108c SS |
556 | /* Are we executing breakpoint commands? */ |
557 | static int executing_breakpoint_commands; | |
558 | ||
c02f5703 MS |
559 | /* Are overlay event breakpoints enabled? */ |
560 | static int overlay_events_enabled; | |
561 | ||
e09342b5 TJB |
562 | /* See description in breakpoint.h. */ |
563 | int target_exact_watchpoints = 0; | |
564 | ||
c906108c | 565 | /* Walk the following statement or block through all breakpoints. |
e5dd4106 | 566 | ALL_BREAKPOINTS_SAFE does so even if the statement deletes the |
4a64f543 | 567 | current breakpoint. */ |
c906108c | 568 | |
5c44784c | 569 | #define ALL_BREAKPOINTS(B) for (B = breakpoint_chain; B; B = B->next) |
c906108c | 570 | |
5c44784c JM |
571 | #define ALL_BREAKPOINTS_SAFE(B,TMP) \ |
572 | for (B = breakpoint_chain; \ | |
573 | B ? (TMP=B->next, 1): 0; \ | |
574 | B = TMP) | |
c906108c | 575 | |
4a64f543 MS |
576 | /* Similar iterator for the low-level breakpoints. SAFE variant is |
577 | not provided so update_global_location_list must not be called | |
578 | while executing the block of ALL_BP_LOCATIONS. */ | |
7cc221ef | 579 | |
876fa593 JK |
580 | #define ALL_BP_LOCATIONS(B,BP_TMP) \ |
581 | for (BP_TMP = bp_location; \ | |
582 | BP_TMP < bp_location + bp_location_count && (B = *BP_TMP); \ | |
583 | BP_TMP++) | |
7cc221ef | 584 | |
b775012e LM |
585 | /* Iterates through locations with address ADDRESS for the currently selected |
586 | program space. BP_LOCP_TMP points to each object. BP_LOCP_START points | |
587 | to where the loop should start from. | |
588 | If BP_LOCP_START is a NULL pointer, the macro automatically seeks the | |
589 | appropriate location to start with. */ | |
590 | ||
591 | #define ALL_BP_LOCATIONS_AT_ADDR(BP_LOCP_TMP, BP_LOCP_START, ADDRESS) \ | |
592 | for (BP_LOCP_START = BP_LOCP_START == NULL ? get_first_locp_gte_addr (ADDRESS) : BP_LOCP_START, \ | |
593 | BP_LOCP_TMP = BP_LOCP_START; \ | |
594 | BP_LOCP_START \ | |
595 | && (BP_LOCP_TMP < bp_location + bp_location_count \ | |
596 | && (*BP_LOCP_TMP)->address == ADDRESS); \ | |
597 | BP_LOCP_TMP++) | |
598 | ||
1042e4c0 SS |
599 | /* Iterator for tracepoints only. */ |
600 | ||
601 | #define ALL_TRACEPOINTS(B) \ | |
602 | for (B = breakpoint_chain; B; B = B->next) \ | |
d77f58be | 603 | if (is_tracepoint (B)) |
1042e4c0 | 604 | |
7cc221ef | 605 | /* Chains of all breakpoints defined. */ |
c906108c SS |
606 | |
607 | struct breakpoint *breakpoint_chain; | |
608 | ||
876fa593 JK |
609 | /* Array is sorted by bp_location_compare - primarily by the ADDRESS. */ |
610 | ||
611 | static struct bp_location **bp_location; | |
612 | ||
613 | /* Number of elements of BP_LOCATION. */ | |
614 | ||
615 | static unsigned bp_location_count; | |
616 | ||
4a64f543 MS |
617 | /* Maximum alignment offset between bp_target_info.PLACED_ADDRESS and |
618 | ADDRESS for the current elements of BP_LOCATION which get a valid | |
619 | result from bp_location_has_shadow. You can use it for roughly | |
620 | limiting the subrange of BP_LOCATION to scan for shadow bytes for | |
621 | an address you need to read. */ | |
876fa593 JK |
622 | |
623 | static CORE_ADDR bp_location_placed_address_before_address_max; | |
624 | ||
4a64f543 MS |
625 | /* Maximum offset plus alignment between bp_target_info.PLACED_ADDRESS |
626 | + bp_target_info.SHADOW_LEN and ADDRESS for the current elements of | |
627 | BP_LOCATION which get a valid result from bp_location_has_shadow. | |
628 | You can use it for roughly limiting the subrange of BP_LOCATION to | |
629 | scan for shadow bytes for an address you need to read. */ | |
876fa593 JK |
630 | |
631 | static CORE_ADDR bp_location_shadow_len_after_address_max; | |
7cc221ef | 632 | |
4a64f543 MS |
633 | /* The locations that no longer correspond to any breakpoint, unlinked |
634 | from bp_location array, but for which a hit may still be reported | |
635 | by a target. */ | |
20874c92 VP |
636 | VEC(bp_location_p) *moribund_locations = NULL; |
637 | ||
c906108c SS |
638 | /* Number of last breakpoint made. */ |
639 | ||
95a42b64 TT |
640 | static int breakpoint_count; |
641 | ||
86b17b60 PA |
642 | /* The value of `breakpoint_count' before the last command that |
643 | created breakpoints. If the last (break-like) command created more | |
644 | than one breakpoint, then the difference between BREAKPOINT_COUNT | |
645 | and PREV_BREAKPOINT_COUNT is more than one. */ | |
646 | static int prev_breakpoint_count; | |
c906108c | 647 | |
1042e4c0 SS |
648 | /* Number of last tracepoint made. */ |
649 | ||
95a42b64 | 650 | static int tracepoint_count; |
1042e4c0 | 651 | |
6149aea9 PA |
652 | static struct cmd_list_element *breakpoint_set_cmdlist; |
653 | static struct cmd_list_element *breakpoint_show_cmdlist; | |
9291a0cd | 654 | struct cmd_list_element *save_cmdlist; |
6149aea9 | 655 | |
badd37ce SDJ |
656 | /* See declaration at breakpoint.h. */ |
657 | ||
658 | struct breakpoint * | |
659 | breakpoint_find_if (int (*func) (struct breakpoint *b, void *d), | |
660 | void *user_data) | |
661 | { | |
662 | struct breakpoint *b = NULL; | |
663 | ||
664 | ALL_BREAKPOINTS (b) | |
665 | { | |
666 | if (func (b, user_data) != 0) | |
667 | break; | |
668 | } | |
669 | ||
670 | return b; | |
671 | } | |
672 | ||
468d015d JJ |
673 | /* Return whether a breakpoint is an active enabled breakpoint. */ |
674 | static int | |
675 | breakpoint_enabled (struct breakpoint *b) | |
676 | { | |
0d381245 | 677 | return (b->enable_state == bp_enabled); |
468d015d JJ |
678 | } |
679 | ||
c906108c SS |
680 | /* Set breakpoint count to NUM. */ |
681 | ||
95a42b64 | 682 | static void |
fba45db2 | 683 | set_breakpoint_count (int num) |
c906108c | 684 | { |
86b17b60 | 685 | prev_breakpoint_count = breakpoint_count; |
c906108c | 686 | breakpoint_count = num; |
4fa62494 | 687 | set_internalvar_integer (lookup_internalvar ("bpnum"), num); |
c906108c SS |
688 | } |
689 | ||
86b17b60 PA |
690 | /* Used by `start_rbreak_breakpoints' below, to record the current |
691 | breakpoint count before "rbreak" creates any breakpoint. */ | |
692 | static int rbreak_start_breakpoint_count; | |
693 | ||
95a42b64 TT |
694 | /* Called at the start an "rbreak" command to record the first |
695 | breakpoint made. */ | |
86b17b60 | 696 | |
95a42b64 TT |
697 | void |
698 | start_rbreak_breakpoints (void) | |
699 | { | |
86b17b60 | 700 | rbreak_start_breakpoint_count = breakpoint_count; |
95a42b64 TT |
701 | } |
702 | ||
703 | /* Called at the end of an "rbreak" command to record the last | |
704 | breakpoint made. */ | |
86b17b60 | 705 | |
95a42b64 TT |
706 | void |
707 | end_rbreak_breakpoints (void) | |
708 | { | |
86b17b60 | 709 | prev_breakpoint_count = rbreak_start_breakpoint_count; |
95a42b64 TT |
710 | } |
711 | ||
4a64f543 | 712 | /* Used in run_command to zero the hit count when a new run starts. */ |
c906108c SS |
713 | |
714 | void | |
fba45db2 | 715 | clear_breakpoint_hit_counts (void) |
c906108c SS |
716 | { |
717 | struct breakpoint *b; | |
718 | ||
719 | ALL_BREAKPOINTS (b) | |
720 | b->hit_count = 0; | |
721 | } | |
722 | ||
9add0f1b TT |
723 | /* Allocate a new counted_command_line with reference count of 1. |
724 | The new structure owns COMMANDS. */ | |
725 | ||
726 | static struct counted_command_line * | |
727 | alloc_counted_command_line (struct command_line *commands) | |
728 | { | |
8d749320 | 729 | struct counted_command_line *result = XNEW (struct counted_command_line); |
cc59ec59 | 730 | |
9add0f1b TT |
731 | result->refc = 1; |
732 | result->commands = commands; | |
8d749320 | 733 | |
9add0f1b TT |
734 | return result; |
735 | } | |
736 | ||
737 | /* Increment reference count. This does nothing if CMD is NULL. */ | |
738 | ||
739 | static void | |
740 | incref_counted_command_line (struct counted_command_line *cmd) | |
741 | { | |
742 | if (cmd) | |
743 | ++cmd->refc; | |
744 | } | |
745 | ||
746 | /* Decrement reference count. If the reference count reaches 0, | |
747 | destroy the counted_command_line. Sets *CMDP to NULL. This does | |
748 | nothing if *CMDP is NULL. */ | |
749 | ||
750 | static void | |
751 | decref_counted_command_line (struct counted_command_line **cmdp) | |
752 | { | |
753 | if (*cmdp) | |
754 | { | |
755 | if (--(*cmdp)->refc == 0) | |
756 | { | |
757 | free_command_lines (&(*cmdp)->commands); | |
758 | xfree (*cmdp); | |
759 | } | |
760 | *cmdp = NULL; | |
761 | } | |
762 | } | |
763 | ||
764 | /* A cleanup function that calls decref_counted_command_line. */ | |
765 | ||
766 | static void | |
767 | do_cleanup_counted_command_line (void *arg) | |
768 | { | |
9a3c8263 | 769 | decref_counted_command_line ((struct counted_command_line **) arg); |
9add0f1b TT |
770 | } |
771 | ||
772 | /* Create a cleanup that calls decref_counted_command_line on the | |
773 | argument. */ | |
774 | ||
775 | static struct cleanup * | |
776 | make_cleanup_decref_counted_command_line (struct counted_command_line **cmdp) | |
777 | { | |
778 | return make_cleanup (do_cleanup_counted_command_line, cmdp); | |
779 | } | |
780 | ||
c906108c | 781 | \f |
48cb2d85 VP |
782 | /* Return the breakpoint with the specified number, or NULL |
783 | if the number does not refer to an existing breakpoint. */ | |
784 | ||
785 | struct breakpoint * | |
786 | get_breakpoint (int num) | |
787 | { | |
788 | struct breakpoint *b; | |
789 | ||
790 | ALL_BREAKPOINTS (b) | |
791 | if (b->number == num) | |
792 | return b; | |
793 | ||
794 | return NULL; | |
795 | } | |
5c44784c | 796 | |
c906108c | 797 | \f |
adc36818 | 798 | |
b775012e LM |
799 | /* Mark locations as "conditions have changed" in case the target supports |
800 | evaluating conditions on its side. */ | |
801 | ||
802 | static void | |
803 | mark_breakpoint_modified (struct breakpoint *b) | |
804 | { | |
805 | struct bp_location *loc; | |
806 | ||
807 | /* This is only meaningful if the target is | |
808 | evaluating conditions and if the user has | |
809 | opted for condition evaluation on the target's | |
810 | side. */ | |
811 | if (gdb_evaluates_breakpoint_condition_p () | |
812 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
813 | return; | |
814 | ||
815 | if (!is_breakpoint (b)) | |
816 | return; | |
817 | ||
818 | for (loc = b->loc; loc; loc = loc->next) | |
819 | loc->condition_changed = condition_modified; | |
820 | } | |
821 | ||
822 | /* Mark location as "conditions have changed" in case the target supports | |
823 | evaluating conditions on its side. */ | |
824 | ||
825 | static void | |
826 | mark_breakpoint_location_modified (struct bp_location *loc) | |
827 | { | |
828 | /* This is only meaningful if the target is | |
829 | evaluating conditions and if the user has | |
830 | opted for condition evaluation on the target's | |
831 | side. */ | |
832 | if (gdb_evaluates_breakpoint_condition_p () | |
833 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
834 | ||
835 | return; | |
836 | ||
837 | if (!is_breakpoint (loc->owner)) | |
838 | return; | |
839 | ||
840 | loc->condition_changed = condition_modified; | |
841 | } | |
842 | ||
843 | /* Sets the condition-evaluation mode using the static global | |
844 | condition_evaluation_mode. */ | |
845 | ||
846 | static void | |
847 | set_condition_evaluation_mode (char *args, int from_tty, | |
848 | struct cmd_list_element *c) | |
849 | { | |
b775012e LM |
850 | const char *old_mode, *new_mode; |
851 | ||
852 | if ((condition_evaluation_mode_1 == condition_evaluation_target) | |
853 | && !target_supports_evaluation_of_breakpoint_conditions ()) | |
854 | { | |
855 | condition_evaluation_mode_1 = condition_evaluation_mode; | |
856 | warning (_("Target does not support breakpoint condition evaluation.\n" | |
857 | "Using host evaluation mode instead.")); | |
858 | return; | |
859 | } | |
860 | ||
861 | new_mode = translate_condition_evaluation_mode (condition_evaluation_mode_1); | |
862 | old_mode = translate_condition_evaluation_mode (condition_evaluation_mode); | |
863 | ||
abf1152a JK |
864 | /* Flip the switch. Flip it even if OLD_MODE == NEW_MODE as one of the |
865 | settings was "auto". */ | |
866 | condition_evaluation_mode = condition_evaluation_mode_1; | |
867 | ||
b775012e LM |
868 | /* Only update the mode if the user picked a different one. */ |
869 | if (new_mode != old_mode) | |
870 | { | |
871 | struct bp_location *loc, **loc_tmp; | |
872 | /* If the user switched to a different evaluation mode, we | |
873 | need to synch the changes with the target as follows: | |
874 | ||
875 | "host" -> "target": Send all (valid) conditions to the target. | |
876 | "target" -> "host": Remove all the conditions from the target. | |
877 | */ | |
878 | ||
b775012e LM |
879 | if (new_mode == condition_evaluation_target) |
880 | { | |
881 | /* Mark everything modified and synch conditions with the | |
882 | target. */ | |
883 | ALL_BP_LOCATIONS (loc, loc_tmp) | |
884 | mark_breakpoint_location_modified (loc); | |
885 | } | |
886 | else | |
887 | { | |
888 | /* Manually mark non-duplicate locations to synch conditions | |
889 | with the target. We do this to remove all the conditions the | |
890 | target knows about. */ | |
891 | ALL_BP_LOCATIONS (loc, loc_tmp) | |
892 | if (is_breakpoint (loc->owner) && loc->inserted) | |
893 | loc->needs_update = 1; | |
894 | } | |
895 | ||
896 | /* Do the update. */ | |
44702360 | 897 | update_global_location_list (UGLL_MAY_INSERT); |
b775012e LM |
898 | } |
899 | ||
900 | return; | |
901 | } | |
902 | ||
903 | /* Shows the current mode of breakpoint condition evaluation. Explicitly shows | |
904 | what "auto" is translating to. */ | |
905 | ||
906 | static void | |
907 | show_condition_evaluation_mode (struct ui_file *file, int from_tty, | |
908 | struct cmd_list_element *c, const char *value) | |
909 | { | |
910 | if (condition_evaluation_mode == condition_evaluation_auto) | |
911 | fprintf_filtered (file, | |
912 | _("Breakpoint condition evaluation " | |
913 | "mode is %s (currently %s).\n"), | |
914 | value, | |
915 | breakpoint_condition_evaluation_mode ()); | |
916 | else | |
917 | fprintf_filtered (file, _("Breakpoint condition evaluation mode is %s.\n"), | |
918 | value); | |
919 | } | |
920 | ||
921 | /* A comparison function for bp_location AP and BP that is used by | |
922 | bsearch. This comparison function only cares about addresses, unlike | |
923 | the more general bp_location_compare function. */ | |
924 | ||
925 | static int | |
926 | bp_location_compare_addrs (const void *ap, const void *bp) | |
927 | { | |
9a3c8263 SM |
928 | const struct bp_location *a = *(const struct bp_location **) ap; |
929 | const struct bp_location *b = *(const struct bp_location **) bp; | |
b775012e LM |
930 | |
931 | if (a->address == b->address) | |
932 | return 0; | |
933 | else | |
934 | return ((a->address > b->address) - (a->address < b->address)); | |
935 | } | |
936 | ||
937 | /* Helper function to skip all bp_locations with addresses | |
938 | less than ADDRESS. It returns the first bp_location that | |
939 | is greater than or equal to ADDRESS. If none is found, just | |
940 | return NULL. */ | |
941 | ||
942 | static struct bp_location ** | |
943 | get_first_locp_gte_addr (CORE_ADDR address) | |
944 | { | |
945 | struct bp_location dummy_loc; | |
946 | struct bp_location *dummy_locp = &dummy_loc; | |
947 | struct bp_location **locp_found = NULL; | |
948 | ||
949 | /* Initialize the dummy location's address field. */ | |
950 | memset (&dummy_loc, 0, sizeof (struct bp_location)); | |
951 | dummy_loc.address = address; | |
952 | ||
953 | /* Find a close match to the first location at ADDRESS. */ | |
9a3c8263 SM |
954 | locp_found = ((struct bp_location **) |
955 | bsearch (&dummy_locp, bp_location, bp_location_count, | |
956 | sizeof (struct bp_location **), | |
957 | bp_location_compare_addrs)); | |
b775012e LM |
958 | |
959 | /* Nothing was found, nothing left to do. */ | |
960 | if (locp_found == NULL) | |
961 | return NULL; | |
962 | ||
963 | /* We may have found a location that is at ADDRESS but is not the first in the | |
964 | location's list. Go backwards (if possible) and locate the first one. */ | |
965 | while ((locp_found - 1) >= bp_location | |
966 | && (*(locp_found - 1))->address == address) | |
967 | locp_found--; | |
968 | ||
969 | return locp_found; | |
970 | } | |
971 | ||
adc36818 | 972 | void |
7a26bd4d | 973 | set_breakpoint_condition (struct breakpoint *b, const char *exp, |
adc36818 PM |
974 | int from_tty) |
975 | { | |
3a5c3e22 PA |
976 | xfree (b->cond_string); |
977 | b->cond_string = NULL; | |
adc36818 | 978 | |
3a5c3e22 | 979 | if (is_watchpoint (b)) |
adc36818 | 980 | { |
3a5c3e22 PA |
981 | struct watchpoint *w = (struct watchpoint *) b; |
982 | ||
983 | xfree (w->cond_exp); | |
984 | w->cond_exp = NULL; | |
985 | } | |
986 | else | |
987 | { | |
988 | struct bp_location *loc; | |
989 | ||
990 | for (loc = b->loc; loc; loc = loc->next) | |
991 | { | |
992 | xfree (loc->cond); | |
993 | loc->cond = NULL; | |
b775012e LM |
994 | |
995 | /* No need to free the condition agent expression | |
996 | bytecode (if we have one). We will handle this | |
997 | when we go through update_global_location_list. */ | |
3a5c3e22 | 998 | } |
adc36818 | 999 | } |
adc36818 PM |
1000 | |
1001 | if (*exp == 0) | |
1002 | { | |
1003 | if (from_tty) | |
1004 | printf_filtered (_("Breakpoint %d now unconditional.\n"), b->number); | |
1005 | } | |
1006 | else | |
1007 | { | |
bbc13ae3 | 1008 | const char *arg = exp; |
cc59ec59 | 1009 | |
adc36818 PM |
1010 | /* I don't know if it matters whether this is the string the user |
1011 | typed in or the decompiled expression. */ | |
1012 | b->cond_string = xstrdup (arg); | |
1013 | b->condition_not_parsed = 0; | |
1014 | ||
1015 | if (is_watchpoint (b)) | |
1016 | { | |
3a5c3e22 PA |
1017 | struct watchpoint *w = (struct watchpoint *) b; |
1018 | ||
adc36818 PM |
1019 | innermost_block = NULL; |
1020 | arg = exp; | |
1bb9788d | 1021 | w->cond_exp = parse_exp_1 (&arg, 0, 0, 0); |
adc36818 PM |
1022 | if (*arg) |
1023 | error (_("Junk at end of expression")); | |
3a5c3e22 | 1024 | w->cond_exp_valid_block = innermost_block; |
adc36818 PM |
1025 | } |
1026 | else | |
1027 | { | |
3a5c3e22 PA |
1028 | struct bp_location *loc; |
1029 | ||
adc36818 PM |
1030 | for (loc = b->loc; loc; loc = loc->next) |
1031 | { | |
1032 | arg = exp; | |
1033 | loc->cond = | |
1bb9788d TT |
1034 | parse_exp_1 (&arg, loc->address, |
1035 | block_for_pc (loc->address), 0); | |
adc36818 PM |
1036 | if (*arg) |
1037 | error (_("Junk at end of expression")); | |
1038 | } | |
1039 | } | |
1040 | } | |
b775012e LM |
1041 | mark_breakpoint_modified (b); |
1042 | ||
8d3788bd | 1043 | observer_notify_breakpoint_modified (b); |
adc36818 PM |
1044 | } |
1045 | ||
d55637df TT |
1046 | /* Completion for the "condition" command. */ |
1047 | ||
1048 | static VEC (char_ptr) * | |
6f937416 PA |
1049 | condition_completer (struct cmd_list_element *cmd, |
1050 | const char *text, const char *word) | |
d55637df | 1051 | { |
6f937416 | 1052 | const char *space; |
d55637df | 1053 | |
6f937416 PA |
1054 | text = skip_spaces_const (text); |
1055 | space = skip_to_space_const (text); | |
d55637df TT |
1056 | if (*space == '\0') |
1057 | { | |
1058 | int len; | |
1059 | struct breakpoint *b; | |
1060 | VEC (char_ptr) *result = NULL; | |
1061 | ||
1062 | if (text[0] == '$') | |
1063 | { | |
1064 | /* We don't support completion of history indices. */ | |
1065 | if (isdigit (text[1])) | |
1066 | return NULL; | |
1067 | return complete_internalvar (&text[1]); | |
1068 | } | |
1069 | ||
1070 | /* We're completing the breakpoint number. */ | |
1071 | len = strlen (text); | |
1072 | ||
1073 | ALL_BREAKPOINTS (b) | |
58ce7251 SDJ |
1074 | { |
1075 | char number[50]; | |
1076 | ||
1077 | xsnprintf (number, sizeof (number), "%d", b->number); | |
1078 | ||
1079 | if (strncmp (number, text, len) == 0) | |
1080 | VEC_safe_push (char_ptr, result, xstrdup (number)); | |
1081 | } | |
d55637df TT |
1082 | |
1083 | return result; | |
1084 | } | |
1085 | ||
1086 | /* We're completing the expression part. */ | |
6f937416 | 1087 | text = skip_spaces_const (space); |
d55637df TT |
1088 | return expression_completer (cmd, text, word); |
1089 | } | |
1090 | ||
c906108c SS |
1091 | /* condition N EXP -- set break condition of breakpoint N to EXP. */ |
1092 | ||
1093 | static void | |
fba45db2 | 1094 | condition_command (char *arg, int from_tty) |
c906108c | 1095 | { |
52f0bd74 | 1096 | struct breakpoint *b; |
c906108c | 1097 | char *p; |
52f0bd74 | 1098 | int bnum; |
c906108c SS |
1099 | |
1100 | if (arg == 0) | |
e2e0b3e5 | 1101 | error_no_arg (_("breakpoint number")); |
c906108c SS |
1102 | |
1103 | p = arg; | |
1104 | bnum = get_number (&p); | |
5c44784c | 1105 | if (bnum == 0) |
8a3fe4f8 | 1106 | error (_("Bad breakpoint argument: '%s'"), arg); |
c906108c SS |
1107 | |
1108 | ALL_BREAKPOINTS (b) | |
1109 | if (b->number == bnum) | |
2f069f6f | 1110 | { |
6dddc817 DE |
1111 | /* Check if this breakpoint has a "stop" method implemented in an |
1112 | extension language. This method and conditions entered into GDB | |
1113 | from the CLI are mutually exclusive. */ | |
1114 | const struct extension_language_defn *extlang | |
1115 | = get_breakpoint_cond_ext_lang (b, EXT_LANG_NONE); | |
1116 | ||
1117 | if (extlang != NULL) | |
1118 | { | |
1119 | error (_("Only one stop condition allowed. There is currently" | |
1120 | " a %s stop condition defined for this breakpoint."), | |
1121 | ext_lang_capitalized_name (extlang)); | |
1122 | } | |
2566ad2d | 1123 | set_breakpoint_condition (b, p, from_tty); |
b775012e LM |
1124 | |
1125 | if (is_breakpoint (b)) | |
44702360 | 1126 | update_global_location_list (UGLL_MAY_INSERT); |
b775012e | 1127 | |
2f069f6f JB |
1128 | return; |
1129 | } | |
c906108c | 1130 | |
8a3fe4f8 | 1131 | error (_("No breakpoint number %d."), bnum); |
c906108c SS |
1132 | } |
1133 | ||
a7bdde9e VP |
1134 | /* Check that COMMAND do not contain commands that are suitable |
1135 | only for tracepoints and not suitable for ordinary breakpoints. | |
4a64f543 MS |
1136 | Throw if any such commands is found. */ |
1137 | ||
a7bdde9e VP |
1138 | static void |
1139 | check_no_tracepoint_commands (struct command_line *commands) | |
1140 | { | |
1141 | struct command_line *c; | |
cc59ec59 | 1142 | |
a7bdde9e VP |
1143 | for (c = commands; c; c = c->next) |
1144 | { | |
1145 | int i; | |
1146 | ||
1147 | if (c->control_type == while_stepping_control) | |
3e43a32a MS |
1148 | error (_("The 'while-stepping' command can " |
1149 | "only be used for tracepoints")); | |
a7bdde9e VP |
1150 | |
1151 | for (i = 0; i < c->body_count; ++i) | |
1152 | check_no_tracepoint_commands ((c->body_list)[i]); | |
1153 | ||
1154 | /* Not that command parsing removes leading whitespace and comment | |
4a64f543 | 1155 | lines and also empty lines. So, we only need to check for |
a7bdde9e VP |
1156 | command directly. */ |
1157 | if (strstr (c->line, "collect ") == c->line) | |
1158 | error (_("The 'collect' command can only be used for tracepoints")); | |
1159 | ||
51661e93 VP |
1160 | if (strstr (c->line, "teval ") == c->line) |
1161 | error (_("The 'teval' command can only be used for tracepoints")); | |
a7bdde9e VP |
1162 | } |
1163 | } | |
1164 | ||
d77f58be SS |
1165 | /* Encapsulate tests for different types of tracepoints. */ |
1166 | ||
d9b3f62e PA |
1167 | static int |
1168 | is_tracepoint_type (enum bptype type) | |
1169 | { | |
1170 | return (type == bp_tracepoint | |
1171 | || type == bp_fast_tracepoint | |
1172 | || type == bp_static_tracepoint); | |
1173 | } | |
1174 | ||
a7bdde9e | 1175 | int |
d77f58be | 1176 | is_tracepoint (const struct breakpoint *b) |
a7bdde9e | 1177 | { |
d9b3f62e | 1178 | return is_tracepoint_type (b->type); |
a7bdde9e | 1179 | } |
d9b3f62e | 1180 | |
e5dd4106 | 1181 | /* A helper function that validates that COMMANDS are valid for a |
95a42b64 TT |
1182 | breakpoint. This function will throw an exception if a problem is |
1183 | found. */ | |
48cb2d85 | 1184 | |
95a42b64 TT |
1185 | static void |
1186 | validate_commands_for_breakpoint (struct breakpoint *b, | |
1187 | struct command_line *commands) | |
48cb2d85 | 1188 | { |
d77f58be | 1189 | if (is_tracepoint (b)) |
a7bdde9e | 1190 | { |
c9a6ce02 | 1191 | struct tracepoint *t = (struct tracepoint *) b; |
a7bdde9e VP |
1192 | struct command_line *c; |
1193 | struct command_line *while_stepping = 0; | |
c9a6ce02 PA |
1194 | |
1195 | /* Reset the while-stepping step count. The previous commands | |
1196 | might have included a while-stepping action, while the new | |
1197 | ones might not. */ | |
1198 | t->step_count = 0; | |
1199 | ||
1200 | /* We need to verify that each top-level element of commands is | |
1201 | valid for tracepoints, that there's at most one | |
1202 | while-stepping element, and that the while-stepping's body | |
1203 | has valid tracing commands excluding nested while-stepping. | |
1204 | We also need to validate the tracepoint action line in the | |
1205 | context of the tracepoint --- validate_actionline actually | |
1206 | has side effects, like setting the tracepoint's | |
1207 | while-stepping STEP_COUNT, in addition to checking if the | |
1208 | collect/teval actions parse and make sense in the | |
1209 | tracepoint's context. */ | |
a7bdde9e VP |
1210 | for (c = commands; c; c = c->next) |
1211 | { | |
a7bdde9e VP |
1212 | if (c->control_type == while_stepping_control) |
1213 | { | |
1214 | if (b->type == bp_fast_tracepoint) | |
3e43a32a MS |
1215 | error (_("The 'while-stepping' command " |
1216 | "cannot be used for fast tracepoint")); | |
0fb4aa4b | 1217 | else if (b->type == bp_static_tracepoint) |
3e43a32a MS |
1218 | error (_("The 'while-stepping' command " |
1219 | "cannot be used for static tracepoint")); | |
a7bdde9e VP |
1220 | |
1221 | if (while_stepping) | |
3e43a32a MS |
1222 | error (_("The 'while-stepping' command " |
1223 | "can be used only once")); | |
a7bdde9e VP |
1224 | else |
1225 | while_stepping = c; | |
1226 | } | |
c9a6ce02 PA |
1227 | |
1228 | validate_actionline (c->line, b); | |
a7bdde9e VP |
1229 | } |
1230 | if (while_stepping) | |
1231 | { | |
1232 | struct command_line *c2; | |
1233 | ||
1234 | gdb_assert (while_stepping->body_count == 1); | |
1235 | c2 = while_stepping->body_list[0]; | |
1236 | for (; c2; c2 = c2->next) | |
1237 | { | |
a7bdde9e VP |
1238 | if (c2->control_type == while_stepping_control) |
1239 | error (_("The 'while-stepping' command cannot be nested")); | |
1240 | } | |
1241 | } | |
1242 | } | |
1243 | else | |
1244 | { | |
1245 | check_no_tracepoint_commands (commands); | |
1246 | } | |
95a42b64 TT |
1247 | } |
1248 | ||
0fb4aa4b PA |
1249 | /* Return a vector of all the static tracepoints set at ADDR. The |
1250 | caller is responsible for releasing the vector. */ | |
1251 | ||
1252 | VEC(breakpoint_p) * | |
1253 | static_tracepoints_here (CORE_ADDR addr) | |
1254 | { | |
1255 | struct breakpoint *b; | |
1256 | VEC(breakpoint_p) *found = 0; | |
1257 | struct bp_location *loc; | |
1258 | ||
1259 | ALL_BREAKPOINTS (b) | |
1260 | if (b->type == bp_static_tracepoint) | |
1261 | { | |
1262 | for (loc = b->loc; loc; loc = loc->next) | |
1263 | if (loc->address == addr) | |
1264 | VEC_safe_push(breakpoint_p, found, b); | |
1265 | } | |
1266 | ||
1267 | return found; | |
1268 | } | |
1269 | ||
95a42b64 | 1270 | /* Set the command list of B to COMMANDS. If breakpoint is tracepoint, |
4a64f543 | 1271 | validate that only allowed commands are included. */ |
95a42b64 TT |
1272 | |
1273 | void | |
4a64f543 MS |
1274 | breakpoint_set_commands (struct breakpoint *b, |
1275 | struct command_line *commands) | |
95a42b64 TT |
1276 | { |
1277 | validate_commands_for_breakpoint (b, commands); | |
a7bdde9e | 1278 | |
9add0f1b TT |
1279 | decref_counted_command_line (&b->commands); |
1280 | b->commands = alloc_counted_command_line (commands); | |
8d3788bd | 1281 | observer_notify_breakpoint_modified (b); |
48cb2d85 VP |
1282 | } |
1283 | ||
45a43567 TT |
1284 | /* Set the internal `silent' flag on the breakpoint. Note that this |
1285 | is not the same as the "silent" that may appear in the breakpoint's | |
1286 | commands. */ | |
1287 | ||
1288 | void | |
1289 | breakpoint_set_silent (struct breakpoint *b, int silent) | |
1290 | { | |
1291 | int old_silent = b->silent; | |
1292 | ||
1293 | b->silent = silent; | |
1294 | if (old_silent != silent) | |
8d3788bd | 1295 | observer_notify_breakpoint_modified (b); |
45a43567 TT |
1296 | } |
1297 | ||
1298 | /* Set the thread for this breakpoint. If THREAD is -1, make the | |
1299 | breakpoint work for any thread. */ | |
1300 | ||
1301 | void | |
1302 | breakpoint_set_thread (struct breakpoint *b, int thread) | |
1303 | { | |
1304 | int old_thread = b->thread; | |
1305 | ||
1306 | b->thread = thread; | |
1307 | if (old_thread != thread) | |
8d3788bd | 1308 | observer_notify_breakpoint_modified (b); |
45a43567 TT |
1309 | } |
1310 | ||
1311 | /* Set the task for this breakpoint. If TASK is 0, make the | |
1312 | breakpoint work for any task. */ | |
1313 | ||
1314 | void | |
1315 | breakpoint_set_task (struct breakpoint *b, int task) | |
1316 | { | |
1317 | int old_task = b->task; | |
1318 | ||
1319 | b->task = task; | |
1320 | if (old_task != task) | |
8d3788bd | 1321 | observer_notify_breakpoint_modified (b); |
45a43567 TT |
1322 | } |
1323 | ||
95a42b64 TT |
1324 | void |
1325 | check_tracepoint_command (char *line, void *closure) | |
a7bdde9e | 1326 | { |
9a3c8263 | 1327 | struct breakpoint *b = (struct breakpoint *) closure; |
cc59ec59 | 1328 | |
6f937416 | 1329 | validate_actionline (line, b); |
a7bdde9e VP |
1330 | } |
1331 | ||
95a42b64 TT |
1332 | /* A structure used to pass information through |
1333 | map_breakpoint_numbers. */ | |
1334 | ||
1335 | struct commands_info | |
1336 | { | |
1337 | /* True if the command was typed at a tty. */ | |
1338 | int from_tty; | |
86b17b60 PA |
1339 | |
1340 | /* The breakpoint range spec. */ | |
1341 | char *arg; | |
1342 | ||
95a42b64 TT |
1343 | /* Non-NULL if the body of the commands are being read from this |
1344 | already-parsed command. */ | |
1345 | struct command_line *control; | |
86b17b60 | 1346 | |
95a42b64 TT |
1347 | /* The command lines read from the user, or NULL if they have not |
1348 | yet been read. */ | |
1349 | struct counted_command_line *cmd; | |
1350 | }; | |
1351 | ||
1352 | /* A callback for map_breakpoint_numbers that sets the commands for | |
1353 | commands_command. */ | |
1354 | ||
c906108c | 1355 | static void |
95a42b64 | 1356 | do_map_commands_command (struct breakpoint *b, void *data) |
c906108c | 1357 | { |
9a3c8263 | 1358 | struct commands_info *info = (struct commands_info *) data; |
c906108c | 1359 | |
95a42b64 TT |
1360 | if (info->cmd == NULL) |
1361 | { | |
1362 | struct command_line *l; | |
5c44784c | 1363 | |
95a42b64 TT |
1364 | if (info->control != NULL) |
1365 | l = copy_command_lines (info->control->body_list[0]); | |
1366 | else | |
86b17b60 PA |
1367 | { |
1368 | struct cleanup *old_chain; | |
1369 | char *str; | |
c5aa993b | 1370 | |
3e43a32a MS |
1371 | str = xstrprintf (_("Type commands for breakpoint(s) " |
1372 | "%s, one per line."), | |
86b17b60 PA |
1373 | info->arg); |
1374 | ||
1375 | old_chain = make_cleanup (xfree, str); | |
1376 | ||
1377 | l = read_command_lines (str, | |
1378 | info->from_tty, 1, | |
d77f58be | 1379 | (is_tracepoint (b) |
86b17b60 PA |
1380 | ? check_tracepoint_command : 0), |
1381 | b); | |
1382 | ||
1383 | do_cleanups (old_chain); | |
1384 | } | |
a7bdde9e | 1385 | |
95a42b64 TT |
1386 | info->cmd = alloc_counted_command_line (l); |
1387 | } | |
1388 | ||
1389 | /* If a breakpoint was on the list more than once, we don't need to | |
1390 | do anything. */ | |
1391 | if (b->commands != info->cmd) | |
1392 | { | |
1393 | validate_commands_for_breakpoint (b, info->cmd->commands); | |
1394 | incref_counted_command_line (info->cmd); | |
1395 | decref_counted_command_line (&b->commands); | |
1396 | b->commands = info->cmd; | |
8d3788bd | 1397 | observer_notify_breakpoint_modified (b); |
c5aa993b | 1398 | } |
95a42b64 TT |
1399 | } |
1400 | ||
1401 | static void | |
4a64f543 MS |
1402 | commands_command_1 (char *arg, int from_tty, |
1403 | struct command_line *control) | |
95a42b64 TT |
1404 | { |
1405 | struct cleanup *cleanups; | |
1406 | struct commands_info info; | |
1407 | ||
1408 | info.from_tty = from_tty; | |
1409 | info.control = control; | |
1410 | info.cmd = NULL; | |
1411 | /* If we read command lines from the user, then `info' will hold an | |
1412 | extra reference to the commands that we must clean up. */ | |
1413 | cleanups = make_cleanup_decref_counted_command_line (&info.cmd); | |
1414 | ||
1415 | if (arg == NULL || !*arg) | |
1416 | { | |
86b17b60 | 1417 | if (breakpoint_count - prev_breakpoint_count > 1) |
4a64f543 MS |
1418 | arg = xstrprintf ("%d-%d", prev_breakpoint_count + 1, |
1419 | breakpoint_count); | |
95a42b64 TT |
1420 | else if (breakpoint_count > 0) |
1421 | arg = xstrprintf ("%d", breakpoint_count); | |
86b17b60 PA |
1422 | else |
1423 | { | |
1424 | /* So that we don't try to free the incoming non-NULL | |
1425 | argument in the cleanup below. Mapping breakpoint | |
1426 | numbers will fail in this case. */ | |
1427 | arg = NULL; | |
1428 | } | |
95a42b64 | 1429 | } |
9766ced4 SS |
1430 | else |
1431 | /* The command loop has some static state, so we need to preserve | |
1432 | our argument. */ | |
1433 | arg = xstrdup (arg); | |
86b17b60 PA |
1434 | |
1435 | if (arg != NULL) | |
1436 | make_cleanup (xfree, arg); | |
1437 | ||
1438 | info.arg = arg; | |
95a42b64 TT |
1439 | |
1440 | map_breakpoint_numbers (arg, do_map_commands_command, &info); | |
1441 | ||
1442 | if (info.cmd == NULL) | |
1443 | error (_("No breakpoints specified.")); | |
1444 | ||
1445 | do_cleanups (cleanups); | |
1446 | } | |
1447 | ||
1448 | static void | |
1449 | commands_command (char *arg, int from_tty) | |
1450 | { | |
1451 | commands_command_1 (arg, from_tty, NULL); | |
c906108c | 1452 | } |
40c03ae8 EZ |
1453 | |
1454 | /* Like commands_command, but instead of reading the commands from | |
1455 | input stream, takes them from an already parsed command structure. | |
1456 | ||
1457 | This is used by cli-script.c to DTRT with breakpoint commands | |
1458 | that are part of if and while bodies. */ | |
1459 | enum command_control_type | |
1460 | commands_from_control_command (char *arg, struct command_line *cmd) | |
1461 | { | |
95a42b64 TT |
1462 | commands_command_1 (arg, 0, cmd); |
1463 | return simple_control; | |
40c03ae8 | 1464 | } |
876fa593 JK |
1465 | |
1466 | /* Return non-zero if BL->TARGET_INFO contains valid information. */ | |
1467 | ||
1468 | static int | |
1469 | bp_location_has_shadow (struct bp_location *bl) | |
1470 | { | |
1471 | if (bl->loc_type != bp_loc_software_breakpoint) | |
1472 | return 0; | |
1473 | if (!bl->inserted) | |
1474 | return 0; | |
1475 | if (bl->target_info.shadow_len == 0) | |
e5dd4106 | 1476 | /* BL isn't valid, or doesn't shadow memory. */ |
876fa593 JK |
1477 | return 0; |
1478 | return 1; | |
1479 | } | |
1480 | ||
9d497a19 PA |
1481 | /* Update BUF, which is LEN bytes read from the target address |
1482 | MEMADDR, by replacing a memory breakpoint with its shadowed | |
1483 | contents. | |
1484 | ||
1485 | If READBUF is not NULL, this buffer must not overlap with the of | |
1486 | the breakpoint location's shadow_contents buffer. Otherwise, a | |
1487 | failed assertion internal error will be raised. */ | |
1488 | ||
1489 | static void | |
1490 | one_breakpoint_xfer_memory (gdb_byte *readbuf, gdb_byte *writebuf, | |
1491 | const gdb_byte *writebuf_org, | |
1492 | ULONGEST memaddr, LONGEST len, | |
1493 | struct bp_target_info *target_info, | |
1494 | struct gdbarch *gdbarch) | |
1495 | { | |
1496 | /* Now do full processing of the found relevant range of elements. */ | |
1497 | CORE_ADDR bp_addr = 0; | |
1498 | int bp_size = 0; | |
1499 | int bptoffset = 0; | |
1500 | ||
1501 | if (!breakpoint_address_match (target_info->placed_address_space, 0, | |
1502 | current_program_space->aspace, 0)) | |
1503 | { | |
1504 | /* The breakpoint is inserted in a different address space. */ | |
1505 | return; | |
1506 | } | |
1507 | ||
1508 | /* Addresses and length of the part of the breakpoint that | |
1509 | we need to copy. */ | |
1510 | bp_addr = target_info->placed_address; | |
1511 | bp_size = target_info->shadow_len; | |
1512 | ||
1513 | if (bp_addr + bp_size <= memaddr) | |
1514 | { | |
1515 | /* The breakpoint is entirely before the chunk of memory we are | |
1516 | reading. */ | |
1517 | return; | |
1518 | } | |
1519 | ||
1520 | if (bp_addr >= memaddr + len) | |
1521 | { | |
1522 | /* The breakpoint is entirely after the chunk of memory we are | |
1523 | reading. */ | |
1524 | return; | |
1525 | } | |
1526 | ||
1527 | /* Offset within shadow_contents. */ | |
1528 | if (bp_addr < memaddr) | |
1529 | { | |
1530 | /* Only copy the second part of the breakpoint. */ | |
1531 | bp_size -= memaddr - bp_addr; | |
1532 | bptoffset = memaddr - bp_addr; | |
1533 | bp_addr = memaddr; | |
1534 | } | |
1535 | ||
1536 | if (bp_addr + bp_size > memaddr + len) | |
1537 | { | |
1538 | /* Only copy the first part of the breakpoint. */ | |
1539 | bp_size -= (bp_addr + bp_size) - (memaddr + len); | |
1540 | } | |
1541 | ||
1542 | if (readbuf != NULL) | |
1543 | { | |
1544 | /* Verify that the readbuf buffer does not overlap with the | |
1545 | shadow_contents buffer. */ | |
1546 | gdb_assert (target_info->shadow_contents >= readbuf + len | |
1547 | || readbuf >= (target_info->shadow_contents | |
1548 | + target_info->shadow_len)); | |
1549 | ||
1550 | /* Update the read buffer with this inserted breakpoint's | |
1551 | shadow. */ | |
1552 | memcpy (readbuf + bp_addr - memaddr, | |
1553 | target_info->shadow_contents + bptoffset, bp_size); | |
1554 | } | |
1555 | else | |
1556 | { | |
1557 | const unsigned char *bp; | |
0d5ed153 MR |
1558 | CORE_ADDR addr = target_info->reqstd_address; |
1559 | int placed_size; | |
9d497a19 PA |
1560 | |
1561 | /* Update the shadow with what we want to write to memory. */ | |
1562 | memcpy (target_info->shadow_contents + bptoffset, | |
1563 | writebuf_org + bp_addr - memaddr, bp_size); | |
1564 | ||
1565 | /* Determine appropriate breakpoint contents and size for this | |
1566 | address. */ | |
0d5ed153 | 1567 | bp = gdbarch_breakpoint_from_pc (gdbarch, &addr, &placed_size); |
9d497a19 PA |
1568 | |
1569 | /* Update the final write buffer with this inserted | |
1570 | breakpoint's INSN. */ | |
1571 | memcpy (writebuf + bp_addr - memaddr, bp + bptoffset, bp_size); | |
1572 | } | |
1573 | } | |
1574 | ||
8defab1a | 1575 | /* Update BUF, which is LEN bytes read from the target address MEMADDR, |
876fa593 JK |
1576 | by replacing any memory breakpoints with their shadowed contents. |
1577 | ||
35c63cd8 JB |
1578 | If READBUF is not NULL, this buffer must not overlap with any of |
1579 | the breakpoint location's shadow_contents buffers. Otherwise, | |
1580 | a failed assertion internal error will be raised. | |
1581 | ||
876fa593 | 1582 | The range of shadowed area by each bp_location is: |
35df4500 TJB |
1583 | bl->address - bp_location_placed_address_before_address_max |
1584 | up to bl->address + bp_location_shadow_len_after_address_max | |
876fa593 JK |
1585 | The range we were requested to resolve shadows for is: |
1586 | memaddr ... memaddr + len | |
1587 | Thus the safe cutoff boundaries for performance optimization are | |
35df4500 TJB |
1588 | memaddr + len <= (bl->address |
1589 | - bp_location_placed_address_before_address_max) | |
876fa593 | 1590 | and: |
35df4500 | 1591 | bl->address + bp_location_shadow_len_after_address_max <= memaddr */ |
c906108c | 1592 | |
8defab1a | 1593 | void |
f0ba3972 PA |
1594 | breakpoint_xfer_memory (gdb_byte *readbuf, gdb_byte *writebuf, |
1595 | const gdb_byte *writebuf_org, | |
1596 | ULONGEST memaddr, LONGEST len) | |
c906108c | 1597 | { |
4a64f543 MS |
1598 | /* Left boundary, right boundary and median element of our binary |
1599 | search. */ | |
876fa593 | 1600 | unsigned bc_l, bc_r, bc; |
9d497a19 | 1601 | size_t i; |
876fa593 | 1602 | |
4a64f543 MS |
1603 | /* Find BC_L which is a leftmost element which may affect BUF |
1604 | content. It is safe to report lower value but a failure to | |
1605 | report higher one. */ | |
876fa593 JK |
1606 | |
1607 | bc_l = 0; | |
1608 | bc_r = bp_location_count; | |
1609 | while (bc_l + 1 < bc_r) | |
1610 | { | |
35df4500 | 1611 | struct bp_location *bl; |
876fa593 JK |
1612 | |
1613 | bc = (bc_l + bc_r) / 2; | |
35df4500 | 1614 | bl = bp_location[bc]; |
876fa593 | 1615 | |
4a64f543 MS |
1616 | /* Check first BL->ADDRESS will not overflow due to the added |
1617 | constant. Then advance the left boundary only if we are sure | |
1618 | the BC element can in no way affect the BUF content (MEMADDR | |
1619 | to MEMADDR + LEN range). | |
876fa593 | 1620 | |
4a64f543 MS |
1621 | Use the BP_LOCATION_SHADOW_LEN_AFTER_ADDRESS_MAX safety |
1622 | offset so that we cannot miss a breakpoint with its shadow | |
1623 | range tail still reaching MEMADDR. */ | |
c5aa993b | 1624 | |
35df4500 TJB |
1625 | if ((bl->address + bp_location_shadow_len_after_address_max |
1626 | >= bl->address) | |
1627 | && (bl->address + bp_location_shadow_len_after_address_max | |
1628 | <= memaddr)) | |
876fa593 JK |
1629 | bc_l = bc; |
1630 | else | |
1631 | bc_r = bc; | |
1632 | } | |
1633 | ||
128070bb PA |
1634 | /* Due to the binary search above, we need to make sure we pick the |
1635 | first location that's at BC_L's address. E.g., if there are | |
1636 | multiple locations at the same address, BC_L may end up pointing | |
1637 | at a duplicate location, and miss the "master"/"inserted" | |
1638 | location. Say, given locations L1, L2 and L3 at addresses A and | |
1639 | B: | |
1640 | ||
1641 | L1@A, L2@A, L3@B, ... | |
1642 | ||
1643 | BC_L could end up pointing at location L2, while the "master" | |
1644 | location could be L1. Since the `loc->inserted' flag is only set | |
1645 | on "master" locations, we'd forget to restore the shadow of L1 | |
1646 | and L2. */ | |
1647 | while (bc_l > 0 | |
1648 | && bp_location[bc_l]->address == bp_location[bc_l - 1]->address) | |
1649 | bc_l--; | |
1650 | ||
876fa593 JK |
1651 | /* Now do full processing of the found relevant range of elements. */ |
1652 | ||
1653 | for (bc = bc_l; bc < bp_location_count; bc++) | |
c5aa993b | 1654 | { |
35df4500 | 1655 | struct bp_location *bl = bp_location[bc]; |
876fa593 JK |
1656 | CORE_ADDR bp_addr = 0; |
1657 | int bp_size = 0; | |
1658 | int bptoffset = 0; | |
1659 | ||
35df4500 TJB |
1660 | /* bp_location array has BL->OWNER always non-NULL. */ |
1661 | if (bl->owner->type == bp_none) | |
8a3fe4f8 | 1662 | warning (_("reading through apparently deleted breakpoint #%d?"), |
35df4500 | 1663 | bl->owner->number); |
ffce0d52 | 1664 | |
e5dd4106 | 1665 | /* Performance optimization: any further element can no longer affect BUF |
876fa593 JK |
1666 | content. */ |
1667 | ||
35df4500 TJB |
1668 | if (bl->address >= bp_location_placed_address_before_address_max |
1669 | && memaddr + len <= (bl->address | |
1670 | - bp_location_placed_address_before_address_max)) | |
876fa593 JK |
1671 | break; |
1672 | ||
35df4500 | 1673 | if (!bp_location_has_shadow (bl)) |
c5aa993b | 1674 | continue; |
6c95b8df | 1675 | |
9d497a19 PA |
1676 | one_breakpoint_xfer_memory (readbuf, writebuf, writebuf_org, |
1677 | memaddr, len, &bl->target_info, bl->gdbarch); | |
1678 | } | |
c906108c | 1679 | } |
9d497a19 | 1680 | |
c906108c | 1681 | \f |
c5aa993b | 1682 | |
b775012e LM |
1683 | /* Return true if BPT is either a software breakpoint or a hardware |
1684 | breakpoint. */ | |
1685 | ||
1686 | int | |
1687 | is_breakpoint (const struct breakpoint *bpt) | |
1688 | { | |
1689 | return (bpt->type == bp_breakpoint | |
e7e0cddf SS |
1690 | || bpt->type == bp_hardware_breakpoint |
1691 | || bpt->type == bp_dprintf); | |
b775012e LM |
1692 | } |
1693 | ||
60e1c644 PA |
1694 | /* Return true if BPT is of any hardware watchpoint kind. */ |
1695 | ||
a5606eee | 1696 | static int |
d77f58be | 1697 | is_hardware_watchpoint (const struct breakpoint *bpt) |
a5606eee VP |
1698 | { |
1699 | return (bpt->type == bp_hardware_watchpoint | |
1700 | || bpt->type == bp_read_watchpoint | |
1701 | || bpt->type == bp_access_watchpoint); | |
1702 | } | |
7270d8f2 | 1703 | |
60e1c644 PA |
1704 | /* Return true if BPT is of any watchpoint kind, hardware or |
1705 | software. */ | |
1706 | ||
3a5c3e22 | 1707 | int |
d77f58be | 1708 | is_watchpoint (const struct breakpoint *bpt) |
60e1c644 PA |
1709 | { |
1710 | return (is_hardware_watchpoint (bpt) | |
1711 | || bpt->type == bp_watchpoint); | |
1712 | } | |
1713 | ||
3a5c3e22 PA |
1714 | /* Returns true if the current thread and its running state are safe |
1715 | to evaluate or update watchpoint B. Watchpoints on local | |
1716 | expressions need to be evaluated in the context of the thread that | |
1717 | was current when the watchpoint was created, and, that thread needs | |
1718 | to be stopped to be able to select the correct frame context. | |
1719 | Watchpoints on global expressions can be evaluated on any thread, | |
1720 | and in any state. It is presently left to the target allowing | |
1721 | memory accesses when threads are running. */ | |
f6bc2008 PA |
1722 | |
1723 | static int | |
3a5c3e22 | 1724 | watchpoint_in_thread_scope (struct watchpoint *b) |
f6bc2008 | 1725 | { |
d0d8b0c6 JK |
1726 | return (b->base.pspace == current_program_space |
1727 | && (ptid_equal (b->watchpoint_thread, null_ptid) | |
1728 | || (ptid_equal (inferior_ptid, b->watchpoint_thread) | |
1729 | && !is_executing (inferior_ptid)))); | |
f6bc2008 PA |
1730 | } |
1731 | ||
d0fb5eae JK |
1732 | /* Set watchpoint B to disp_del_at_next_stop, even including its possible |
1733 | associated bp_watchpoint_scope breakpoint. */ | |
1734 | ||
1735 | static void | |
3a5c3e22 | 1736 | watchpoint_del_at_next_stop (struct watchpoint *w) |
d0fb5eae | 1737 | { |
3a5c3e22 | 1738 | struct breakpoint *b = &w->base; |
d0fb5eae JK |
1739 | |
1740 | if (b->related_breakpoint != b) | |
1741 | { | |
1742 | gdb_assert (b->related_breakpoint->type == bp_watchpoint_scope); | |
1743 | gdb_assert (b->related_breakpoint->related_breakpoint == b); | |
1744 | b->related_breakpoint->disposition = disp_del_at_next_stop; | |
1745 | b->related_breakpoint->related_breakpoint = b->related_breakpoint; | |
1746 | b->related_breakpoint = b; | |
1747 | } | |
1748 | b->disposition = disp_del_at_next_stop; | |
1749 | } | |
1750 | ||
bb9d5f81 PP |
1751 | /* Extract a bitfield value from value VAL using the bit parameters contained in |
1752 | watchpoint W. */ | |
1753 | ||
1754 | static struct value * | |
1755 | extract_bitfield_from_watchpoint_value (struct watchpoint *w, struct value *val) | |
1756 | { | |
1757 | struct value *bit_val; | |
1758 | ||
1759 | if (val == NULL) | |
1760 | return NULL; | |
1761 | ||
1762 | bit_val = allocate_value (value_type (val)); | |
1763 | ||
1764 | unpack_value_bitfield (bit_val, | |
1765 | w->val_bitpos, | |
1766 | w->val_bitsize, | |
1767 | value_contents_for_printing (val), | |
1768 | value_offset (val), | |
1769 | val); | |
1770 | ||
1771 | return bit_val; | |
1772 | } | |
1773 | ||
567e1b4e JB |
1774 | /* Assuming that B is a watchpoint: |
1775 | - Reparse watchpoint expression, if REPARSE is non-zero | |
a5606eee | 1776 | - Evaluate expression and store the result in B->val |
567e1b4e JB |
1777 | - Evaluate the condition if there is one, and store the result |
1778 | in b->loc->cond. | |
a5606eee VP |
1779 | - Update the list of values that must be watched in B->loc. |
1780 | ||
4a64f543 MS |
1781 | If the watchpoint disposition is disp_del_at_next_stop, then do |
1782 | nothing. If this is local watchpoint that is out of scope, delete | |
1783 | it. | |
1784 | ||
1785 | Even with `set breakpoint always-inserted on' the watchpoints are | |
1786 | removed + inserted on each stop here. Normal breakpoints must | |
1787 | never be removed because they might be missed by a running thread | |
1788 | when debugging in non-stop mode. On the other hand, hardware | |
1789 | watchpoints (is_hardware_watchpoint; processed here) are specific | |
1790 | to each LWP since they are stored in each LWP's hardware debug | |
1791 | registers. Therefore, such LWP must be stopped first in order to | |
1792 | be able to modify its hardware watchpoints. | |
1793 | ||
1794 | Hardware watchpoints must be reset exactly once after being | |
1795 | presented to the user. It cannot be done sooner, because it would | |
1796 | reset the data used to present the watchpoint hit to the user. And | |
1797 | it must not be done later because it could display the same single | |
1798 | watchpoint hit during multiple GDB stops. Note that the latter is | |
1799 | relevant only to the hardware watchpoint types bp_read_watchpoint | |
1800 | and bp_access_watchpoint. False hit by bp_hardware_watchpoint is | |
1801 | not user-visible - its hit is suppressed if the memory content has | |
1802 | not changed. | |
1803 | ||
1804 | The following constraints influence the location where we can reset | |
1805 | hardware watchpoints: | |
1806 | ||
1807 | * target_stopped_by_watchpoint and target_stopped_data_address are | |
1808 | called several times when GDB stops. | |
1809 | ||
1810 | [linux] | |
1811 | * Multiple hardware watchpoints can be hit at the same time, | |
1812 | causing GDB to stop. GDB only presents one hardware watchpoint | |
1813 | hit at a time as the reason for stopping, and all the other hits | |
1814 | are presented later, one after the other, each time the user | |
1815 | requests the execution to be resumed. Execution is not resumed | |
1816 | for the threads still having pending hit event stored in | |
1817 | LWP_INFO->STATUS. While the watchpoint is already removed from | |
1818 | the inferior on the first stop the thread hit event is kept being | |
1819 | reported from its cached value by linux_nat_stopped_data_address | |
1820 | until the real thread resume happens after the watchpoint gets | |
1821 | presented and thus its LWP_INFO->STATUS gets reset. | |
1822 | ||
1823 | Therefore the hardware watchpoint hit can get safely reset on the | |
1824 | watchpoint removal from inferior. */ | |
a79d3c27 | 1825 | |
b40ce68a | 1826 | static void |
3a5c3e22 | 1827 | update_watchpoint (struct watchpoint *b, int reparse) |
7270d8f2 | 1828 | { |
a5606eee | 1829 | int within_current_scope; |
a5606eee | 1830 | struct frame_id saved_frame_id; |
66076460 | 1831 | int frame_saved; |
a5606eee | 1832 | |
f6bc2008 PA |
1833 | /* If this is a local watchpoint, we only want to check if the |
1834 | watchpoint frame is in scope if the current thread is the thread | |
1835 | that was used to create the watchpoint. */ | |
1836 | if (!watchpoint_in_thread_scope (b)) | |
1837 | return; | |
1838 | ||
3a5c3e22 | 1839 | if (b->base.disposition == disp_del_at_next_stop) |
a5606eee VP |
1840 | return; |
1841 | ||
66076460 | 1842 | frame_saved = 0; |
a5606eee VP |
1843 | |
1844 | /* Determine if the watchpoint is within scope. */ | |
1845 | if (b->exp_valid_block == NULL) | |
1846 | within_current_scope = 1; | |
1847 | else | |
1848 | { | |
b5db5dfc UW |
1849 | struct frame_info *fi = get_current_frame (); |
1850 | struct gdbarch *frame_arch = get_frame_arch (fi); | |
1851 | CORE_ADDR frame_pc = get_frame_pc (fi); | |
1852 | ||
c9cf6e20 MG |
1853 | /* If we're at a point where the stack has been destroyed |
1854 | (e.g. in a function epilogue), unwinding may not work | |
1855 | properly. Do not attempt to recreate locations at this | |
b5db5dfc | 1856 | point. See similar comments in watchpoint_check. */ |
c9cf6e20 | 1857 | if (gdbarch_stack_frame_destroyed_p (frame_arch, frame_pc)) |
b5db5dfc | 1858 | return; |
66076460 DJ |
1859 | |
1860 | /* Save the current frame's ID so we can restore it after | |
1861 | evaluating the watchpoint expression on its own frame. */ | |
1862 | /* FIXME drow/2003-09-09: It would be nice if evaluate_expression | |
1863 | took a frame parameter, so that we didn't have to change the | |
1864 | selected frame. */ | |
1865 | frame_saved = 1; | |
1866 | saved_frame_id = get_frame_id (get_selected_frame (NULL)); | |
1867 | ||
a5606eee VP |
1868 | fi = frame_find_by_id (b->watchpoint_frame); |
1869 | within_current_scope = (fi != NULL); | |
1870 | if (within_current_scope) | |
1871 | select_frame (fi); | |
1872 | } | |
1873 | ||
b5db5dfc UW |
1874 | /* We don't free locations. They are stored in the bp_location array |
1875 | and update_global_location_list will eventually delete them and | |
1876 | remove breakpoints if needed. */ | |
3a5c3e22 | 1877 | b->base.loc = NULL; |
b5db5dfc | 1878 | |
a5606eee VP |
1879 | if (within_current_scope && reparse) |
1880 | { | |
bbc13ae3 | 1881 | const char *s; |
d63d0675 | 1882 | |
a5606eee VP |
1883 | if (b->exp) |
1884 | { | |
1885 | xfree (b->exp); | |
1886 | b->exp = NULL; | |
1887 | } | |
d63d0675 | 1888 | s = b->exp_string_reparse ? b->exp_string_reparse : b->exp_string; |
1bb9788d | 1889 | b->exp = parse_exp_1 (&s, 0, b->exp_valid_block, 0); |
a5606eee VP |
1890 | /* If the meaning of expression itself changed, the old value is |
1891 | no longer relevant. We don't want to report a watchpoint hit | |
1892 | to the user when the old value and the new value may actually | |
1893 | be completely different objects. */ | |
1894 | value_free (b->val); | |
fa4727a6 DJ |
1895 | b->val = NULL; |
1896 | b->val_valid = 0; | |
60e1c644 PA |
1897 | |
1898 | /* Note that unlike with breakpoints, the watchpoint's condition | |
1899 | expression is stored in the breakpoint object, not in the | |
1900 | locations (re)created below. */ | |
3a5c3e22 | 1901 | if (b->base.cond_string != NULL) |
60e1c644 PA |
1902 | { |
1903 | if (b->cond_exp != NULL) | |
1904 | { | |
1905 | xfree (b->cond_exp); | |
1906 | b->cond_exp = NULL; | |
1907 | } | |
1908 | ||
3a5c3e22 | 1909 | s = b->base.cond_string; |
1bb9788d | 1910 | b->cond_exp = parse_exp_1 (&s, 0, b->cond_exp_valid_block, 0); |
60e1c644 | 1911 | } |
a5606eee | 1912 | } |
a5606eee VP |
1913 | |
1914 | /* If we failed to parse the expression, for example because | |
1915 | it refers to a global variable in a not-yet-loaded shared library, | |
1916 | don't try to insert watchpoint. We don't automatically delete | |
1917 | such watchpoint, though, since failure to parse expression | |
1918 | is different from out-of-scope watchpoint. */ | |
e8369a73 | 1919 | if (!target_has_execution) |
2d134ed3 PA |
1920 | { |
1921 | /* Without execution, memory can't change. No use to try and | |
1922 | set watchpoint locations. The watchpoint will be reset when | |
1923 | the target gains execution, through breakpoint_re_set. */ | |
e8369a73 AB |
1924 | if (!can_use_hw_watchpoints) |
1925 | { | |
1926 | if (b->base.ops->works_in_software_mode (&b->base)) | |
1927 | b->base.type = bp_watchpoint; | |
1928 | else | |
638aa5a1 AB |
1929 | error (_("Can't set read/access watchpoint when " |
1930 | "hardware watchpoints are disabled.")); | |
e8369a73 | 1931 | } |
2d134ed3 PA |
1932 | } |
1933 | else if (within_current_scope && b->exp) | |
a5606eee | 1934 | { |
0cf6dd15 | 1935 | int pc = 0; |
fa4727a6 | 1936 | struct value *val_chain, *v, *result, *next; |
2d134ed3 | 1937 | struct program_space *frame_pspace; |
a5606eee | 1938 | |
3a1115a0 | 1939 | fetch_subexp_value (b->exp, &pc, &v, &result, &val_chain, 0); |
a5606eee | 1940 | |
a5606eee VP |
1941 | /* Avoid setting b->val if it's already set. The meaning of |
1942 | b->val is 'the last value' user saw, and we should update | |
1943 | it only if we reported that last value to user. As it | |
9c06b0b4 TJB |
1944 | happens, the code that reports it updates b->val directly. |
1945 | We don't keep track of the memory value for masked | |
1946 | watchpoints. */ | |
3a5c3e22 | 1947 | if (!b->val_valid && !is_masked_watchpoint (&b->base)) |
fa4727a6 | 1948 | { |
bb9d5f81 PP |
1949 | if (b->val_bitsize != 0) |
1950 | { | |
1951 | v = extract_bitfield_from_watchpoint_value (b, v); | |
1952 | if (v != NULL) | |
1953 | release_value (v); | |
1954 | } | |
fa4727a6 DJ |
1955 | b->val = v; |
1956 | b->val_valid = 1; | |
1957 | } | |
a5606eee | 1958 | |
2d134ed3 PA |
1959 | frame_pspace = get_frame_program_space (get_selected_frame (NULL)); |
1960 | ||
a5606eee | 1961 | /* Look at each value on the value chain. */ |
9fa40276 | 1962 | for (v = val_chain; v; v = value_next (v)) |
a5606eee VP |
1963 | { |
1964 | /* If it's a memory location, and GDB actually needed | |
1965 | its contents to evaluate the expression, then we | |
fa4727a6 DJ |
1966 | must watch it. If the first value returned is |
1967 | still lazy, that means an error occurred reading it; | |
1968 | watch it anyway in case it becomes readable. */ | |
a5606eee | 1969 | if (VALUE_LVAL (v) == lval_memory |
fa4727a6 | 1970 | && (v == val_chain || ! value_lazy (v))) |
a5606eee VP |
1971 | { |
1972 | struct type *vtype = check_typedef (value_type (v)); | |
7270d8f2 | 1973 | |
a5606eee VP |
1974 | /* We only watch structs and arrays if user asked |
1975 | for it explicitly, never if they just happen to | |
1976 | appear in the middle of some value chain. */ | |
fa4727a6 | 1977 | if (v == result |
a5606eee VP |
1978 | || (TYPE_CODE (vtype) != TYPE_CODE_STRUCT |
1979 | && TYPE_CODE (vtype) != TYPE_CODE_ARRAY)) | |
1980 | { | |
1981 | CORE_ADDR addr; | |
f486487f | 1982 | enum target_hw_bp_type type; |
a5606eee | 1983 | struct bp_location *loc, **tmp; |
bb9d5f81 PP |
1984 | int bitpos = 0, bitsize = 0; |
1985 | ||
1986 | if (value_bitsize (v) != 0) | |
1987 | { | |
1988 | /* Extract the bit parameters out from the bitfield | |
1989 | sub-expression. */ | |
1990 | bitpos = value_bitpos (v); | |
1991 | bitsize = value_bitsize (v); | |
1992 | } | |
1993 | else if (v == result && b->val_bitsize != 0) | |
1994 | { | |
1995 | /* If VAL_BITSIZE != 0 then RESULT is actually a bitfield | |
1996 | lvalue whose bit parameters are saved in the fields | |
1997 | VAL_BITPOS and VAL_BITSIZE. */ | |
1998 | bitpos = b->val_bitpos; | |
1999 | bitsize = b->val_bitsize; | |
2000 | } | |
a5606eee | 2001 | |
42ae5230 | 2002 | addr = value_address (v); |
bb9d5f81 PP |
2003 | if (bitsize != 0) |
2004 | { | |
2005 | /* Skip the bytes that don't contain the bitfield. */ | |
2006 | addr += bitpos / 8; | |
2007 | } | |
2008 | ||
a5606eee | 2009 | type = hw_write; |
3a5c3e22 | 2010 | if (b->base.type == bp_read_watchpoint) |
a5606eee | 2011 | type = hw_read; |
3a5c3e22 | 2012 | else if (b->base.type == bp_access_watchpoint) |
a5606eee | 2013 | type = hw_access; |
3a5c3e22 PA |
2014 | |
2015 | loc = allocate_bp_location (&b->base); | |
2016 | for (tmp = &(b->base.loc); *tmp != NULL; tmp = &((*tmp)->next)) | |
a5606eee VP |
2017 | ; |
2018 | *tmp = loc; | |
a6d9a66e | 2019 | loc->gdbarch = get_type_arch (value_type (v)); |
6c95b8df PA |
2020 | |
2021 | loc->pspace = frame_pspace; | |
a5606eee | 2022 | loc->address = addr; |
bb9d5f81 PP |
2023 | |
2024 | if (bitsize != 0) | |
2025 | { | |
2026 | /* Just cover the bytes that make up the bitfield. */ | |
2027 | loc->length = ((bitpos % 8) + bitsize + 7) / 8; | |
2028 | } | |
2029 | else | |
2030 | loc->length = TYPE_LENGTH (value_type (v)); | |
2031 | ||
a5606eee VP |
2032 | loc->watchpoint_type = type; |
2033 | } | |
2034 | } | |
9fa40276 TJB |
2035 | } |
2036 | ||
2037 | /* Change the type of breakpoint between hardware assisted or | |
2038 | an ordinary watchpoint depending on the hardware support | |
2039 | and free hardware slots. REPARSE is set when the inferior | |
2040 | is started. */ | |
a9634178 | 2041 | if (reparse) |
9fa40276 | 2042 | { |
e09342b5 | 2043 | int reg_cnt; |
9fa40276 TJB |
2044 | enum bp_loc_type loc_type; |
2045 | struct bp_location *bl; | |
a5606eee | 2046 | |
a9634178 | 2047 | reg_cnt = can_use_hardware_watchpoint (val_chain); |
e09342b5 TJB |
2048 | |
2049 | if (reg_cnt) | |
9fa40276 TJB |
2050 | { |
2051 | int i, target_resources_ok, other_type_used; | |
a1398e0c | 2052 | enum bptype type; |
9fa40276 | 2053 | |
a9634178 TJB |
2054 | /* Use an exact watchpoint when there's only one memory region to be |
2055 | watched, and only one debug register is needed to watch it. */ | |
2056 | b->exact = target_exact_watchpoints && reg_cnt == 1; | |
2057 | ||
9fa40276 | 2058 | /* We need to determine how many resources are already |
e09342b5 TJB |
2059 | used for all other hardware watchpoints plus this one |
2060 | to see if we still have enough resources to also fit | |
a1398e0c PA |
2061 | this watchpoint in as well. */ |
2062 | ||
2063 | /* If this is a software watchpoint, we try to turn it | |
2064 | to a hardware one -- count resources as if B was of | |
2065 | hardware watchpoint type. */ | |
2066 | type = b->base.type; | |
2067 | if (type == bp_watchpoint) | |
2068 | type = bp_hardware_watchpoint; | |
2069 | ||
2070 | /* This watchpoint may or may not have been placed on | |
2071 | the list yet at this point (it won't be in the list | |
2072 | if we're trying to create it for the first time, | |
2073 | through watch_command), so always account for it | |
2074 | manually. */ | |
2075 | ||
2076 | /* Count resources used by all watchpoints except B. */ | |
2077 | i = hw_watchpoint_used_count_others (&b->base, type, &other_type_used); | |
2078 | ||
2079 | /* Add in the resources needed for B. */ | |
2080 | i += hw_watchpoint_use_count (&b->base); | |
2081 | ||
2082 | target_resources_ok | |
2083 | = target_can_use_hardware_watchpoint (type, i, other_type_used); | |
e09342b5 | 2084 | if (target_resources_ok <= 0) |
a9634178 | 2085 | { |
3a5c3e22 | 2086 | int sw_mode = b->base.ops->works_in_software_mode (&b->base); |
9c06b0b4 TJB |
2087 | |
2088 | if (target_resources_ok == 0 && !sw_mode) | |
a9634178 TJB |
2089 | error (_("Target does not support this type of " |
2090 | "hardware watchpoint.")); | |
9c06b0b4 TJB |
2091 | else if (target_resources_ok < 0 && !sw_mode) |
2092 | error (_("There are not enough available hardware " | |
2093 | "resources for this watchpoint.")); | |
a1398e0c PA |
2094 | |
2095 | /* Downgrade to software watchpoint. */ | |
2096 | b->base.type = bp_watchpoint; | |
2097 | } | |
2098 | else | |
2099 | { | |
2100 | /* If this was a software watchpoint, we've just | |
2101 | found we have enough resources to turn it to a | |
2102 | hardware watchpoint. Otherwise, this is a | |
2103 | nop. */ | |
2104 | b->base.type = type; | |
a9634178 | 2105 | } |
9fa40276 | 2106 | } |
3a5c3e22 | 2107 | else if (!b->base.ops->works_in_software_mode (&b->base)) |
638aa5a1 AB |
2108 | { |
2109 | if (!can_use_hw_watchpoints) | |
2110 | error (_("Can't set read/access watchpoint when " | |
2111 | "hardware watchpoints are disabled.")); | |
2112 | else | |
2113 | error (_("Expression cannot be implemented with " | |
2114 | "read/access watchpoint.")); | |
2115 | } | |
9fa40276 | 2116 | else |
3a5c3e22 | 2117 | b->base.type = bp_watchpoint; |
9fa40276 | 2118 | |
3a5c3e22 | 2119 | loc_type = (b->base.type == bp_watchpoint? bp_loc_other |
9fa40276 | 2120 | : bp_loc_hardware_watchpoint); |
3a5c3e22 | 2121 | for (bl = b->base.loc; bl; bl = bl->next) |
9fa40276 TJB |
2122 | bl->loc_type = loc_type; |
2123 | } | |
2124 | ||
2125 | for (v = val_chain; v; v = next) | |
2126 | { | |
a5606eee VP |
2127 | next = value_next (v); |
2128 | if (v != b->val) | |
2129 | value_free (v); | |
2130 | } | |
2131 | ||
c7437ca6 PA |
2132 | /* If a software watchpoint is not watching any memory, then the |
2133 | above left it without any location set up. But, | |
2134 | bpstat_stop_status requires a location to be able to report | |
2135 | stops, so make sure there's at least a dummy one. */ | |
3a5c3e22 | 2136 | if (b->base.type == bp_watchpoint && b->base.loc == NULL) |
c7437ca6 | 2137 | { |
3a5c3e22 PA |
2138 | struct breakpoint *base = &b->base; |
2139 | base->loc = allocate_bp_location (base); | |
2140 | base->loc->pspace = frame_pspace; | |
2141 | base->loc->address = -1; | |
2142 | base->loc->length = -1; | |
2143 | base->loc->watchpoint_type = -1; | |
c7437ca6 | 2144 | } |
a5606eee VP |
2145 | } |
2146 | else if (!within_current_scope) | |
7270d8f2 | 2147 | { |
ac74f770 MS |
2148 | printf_filtered (_("\ |
2149 | Watchpoint %d deleted because the program has left the block\n\ | |
2150 | in which its expression is valid.\n"), | |
3a5c3e22 | 2151 | b->base.number); |
d0fb5eae | 2152 | watchpoint_del_at_next_stop (b); |
7270d8f2 | 2153 | } |
a5606eee VP |
2154 | |
2155 | /* Restore the selected frame. */ | |
66076460 DJ |
2156 | if (frame_saved) |
2157 | select_frame (frame_find_by_id (saved_frame_id)); | |
7270d8f2 OF |
2158 | } |
2159 | ||
a5606eee | 2160 | |
74960c60 | 2161 | /* Returns 1 iff breakpoint location should be |
1e4d1764 YQ |
2162 | inserted in the inferior. We don't differentiate the type of BL's owner |
2163 | (breakpoint vs. tracepoint), although insert_location in tracepoint's | |
2164 | breakpoint_ops is not defined, because in insert_bp_location, | |
2165 | tracepoint's insert_location will not be called. */ | |
74960c60 | 2166 | static int |
35df4500 | 2167 | should_be_inserted (struct bp_location *bl) |
74960c60 | 2168 | { |
35df4500 | 2169 | if (bl->owner == NULL || !breakpoint_enabled (bl->owner)) |
74960c60 VP |
2170 | return 0; |
2171 | ||
35df4500 | 2172 | if (bl->owner->disposition == disp_del_at_next_stop) |
74960c60 VP |
2173 | return 0; |
2174 | ||
35df4500 | 2175 | if (!bl->enabled || bl->shlib_disabled || bl->duplicate) |
74960c60 VP |
2176 | return 0; |
2177 | ||
f8eba3c6 TT |
2178 | if (user_breakpoint_p (bl->owner) && bl->pspace->executing_startup) |
2179 | return 0; | |
2180 | ||
56710373 PA |
2181 | /* This is set for example, when we're attached to the parent of a |
2182 | vfork, and have detached from the child. The child is running | |
2183 | free, and we expect it to do an exec or exit, at which point the | |
2184 | OS makes the parent schedulable again (and the target reports | |
2185 | that the vfork is done). Until the child is done with the shared | |
2186 | memory region, do not insert breakpoints in the parent, otherwise | |
2187 | the child could still trip on the parent's breakpoints. Since | |
2188 | the parent is blocked anyway, it won't miss any breakpoint. */ | |
35df4500 | 2189 | if (bl->pspace->breakpoints_not_allowed) |
56710373 PA |
2190 | return 0; |
2191 | ||
31e77af2 PA |
2192 | /* Don't insert a breakpoint if we're trying to step past its |
2193 | location. */ | |
2194 | if ((bl->loc_type == bp_loc_software_breakpoint | |
2195 | || bl->loc_type == bp_loc_hardware_breakpoint) | |
2196 | && stepping_past_instruction_at (bl->pspace->aspace, | |
2197 | bl->address)) | |
e558d7c1 PA |
2198 | { |
2199 | if (debug_infrun) | |
2200 | { | |
2201 | fprintf_unfiltered (gdb_stdlog, | |
2202 | "infrun: skipping breakpoint: " | |
2203 | "stepping past insn at: %s\n", | |
2204 | paddress (bl->gdbarch, bl->address)); | |
2205 | } | |
2206 | return 0; | |
2207 | } | |
31e77af2 | 2208 | |
963f9c80 PA |
2209 | /* Don't insert watchpoints if we're trying to step past the |
2210 | instruction that triggered one. */ | |
2211 | if ((bl->loc_type == bp_loc_hardware_watchpoint) | |
2212 | && stepping_past_nonsteppable_watchpoint ()) | |
2213 | { | |
2214 | if (debug_infrun) | |
2215 | { | |
2216 | fprintf_unfiltered (gdb_stdlog, | |
2217 | "infrun: stepping past non-steppable watchpoint. " | |
2218 | "skipping watchpoint at %s:%d\n", | |
2219 | paddress (bl->gdbarch, bl->address), | |
2220 | bl->length); | |
2221 | } | |
2222 | return 0; | |
2223 | } | |
2224 | ||
74960c60 VP |
2225 | return 1; |
2226 | } | |
2227 | ||
934709f0 PW |
2228 | /* Same as should_be_inserted but does the check assuming |
2229 | that the location is not duplicated. */ | |
2230 | ||
2231 | static int | |
2232 | unduplicated_should_be_inserted (struct bp_location *bl) | |
2233 | { | |
2234 | int result; | |
2235 | const int save_duplicate = bl->duplicate; | |
2236 | ||
2237 | bl->duplicate = 0; | |
2238 | result = should_be_inserted (bl); | |
2239 | bl->duplicate = save_duplicate; | |
2240 | return result; | |
2241 | } | |
2242 | ||
b775012e LM |
2243 | /* Parses a conditional described by an expression COND into an |
2244 | agent expression bytecode suitable for evaluation | |
2245 | by the bytecode interpreter. Return NULL if there was | |
2246 | any error during parsing. */ | |
2247 | ||
2248 | static struct agent_expr * | |
2249 | parse_cond_to_aexpr (CORE_ADDR scope, struct expression *cond) | |
2250 | { | |
2251 | struct agent_expr *aexpr = NULL; | |
b775012e LM |
2252 | |
2253 | if (!cond) | |
2254 | return NULL; | |
2255 | ||
2256 | /* We don't want to stop processing, so catch any errors | |
2257 | that may show up. */ | |
492d29ea | 2258 | TRY |
b775012e LM |
2259 | { |
2260 | aexpr = gen_eval_for_expr (scope, cond); | |
2261 | } | |
2262 | ||
492d29ea | 2263 | CATCH (ex, RETURN_MASK_ERROR) |
b775012e LM |
2264 | { |
2265 | /* If we got here, it means the condition could not be parsed to a valid | |
2266 | bytecode expression and thus can't be evaluated on the target's side. | |
2267 | It's no use iterating through the conditions. */ | |
2268 | return NULL; | |
2269 | } | |
492d29ea | 2270 | END_CATCH |
b775012e LM |
2271 | |
2272 | /* We have a valid agent expression. */ | |
2273 | return aexpr; | |
2274 | } | |
2275 | ||
2276 | /* Based on location BL, create a list of breakpoint conditions to be | |
2277 | passed on to the target. If we have duplicated locations with different | |
2278 | conditions, we will add such conditions to the list. The idea is that the | |
2279 | target will evaluate the list of conditions and will only notify GDB when | |
2280 | one of them is true. */ | |
2281 | ||
2282 | static void | |
2283 | build_target_condition_list (struct bp_location *bl) | |
2284 | { | |
2285 | struct bp_location **locp = NULL, **loc2p; | |
2286 | int null_condition_or_parse_error = 0; | |
2287 | int modified = bl->needs_update; | |
2288 | struct bp_location *loc; | |
2289 | ||
8b4f3082 PA |
2290 | /* Release conditions left over from a previous insert. */ |
2291 | VEC_free (agent_expr_p, bl->target_info.conditions); | |
2292 | ||
b775012e LM |
2293 | /* This is only meaningful if the target is |
2294 | evaluating conditions and if the user has | |
2295 | opted for condition evaluation on the target's | |
2296 | side. */ | |
2297 | if (gdb_evaluates_breakpoint_condition_p () | |
2298 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
2299 | return; | |
2300 | ||
2301 | /* Do a first pass to check for locations with no assigned | |
2302 | conditions or conditions that fail to parse to a valid agent expression | |
2303 | bytecode. If any of these happen, then it's no use to send conditions | |
2304 | to the target since this location will always trigger and generate a | |
2305 | response back to GDB. */ | |
2306 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2307 | { | |
2308 | loc = (*loc2p); | |
2309 | if (is_breakpoint (loc->owner) && loc->pspace->num == bl->pspace->num) | |
2310 | { | |
2311 | if (modified) | |
2312 | { | |
2313 | struct agent_expr *aexpr; | |
2314 | ||
2315 | /* Re-parse the conditions since something changed. In that | |
2316 | case we already freed the condition bytecodes (see | |
2317 | force_breakpoint_reinsertion). We just | |
2318 | need to parse the condition to bytecodes again. */ | |
2319 | aexpr = parse_cond_to_aexpr (bl->address, loc->cond); | |
2320 | loc->cond_bytecode = aexpr; | |
2321 | ||
2322 | /* Check if we managed to parse the conditional expression | |
2323 | correctly. If not, we will not send this condition | |
2324 | to the target. */ | |
2325 | if (aexpr) | |
2326 | continue; | |
2327 | } | |
2328 | ||
2329 | /* If we have a NULL bytecode expression, it means something | |
2330 | went wrong or we have a null condition expression. */ | |
2331 | if (!loc->cond_bytecode) | |
2332 | { | |
2333 | null_condition_or_parse_error = 1; | |
2334 | break; | |
2335 | } | |
2336 | } | |
2337 | } | |
2338 | ||
2339 | /* If any of these happened, it means we will have to evaluate the conditions | |
2340 | for the location's address on gdb's side. It is no use keeping bytecodes | |
2341 | for all the other duplicate locations, thus we free all of them here. | |
2342 | ||
2343 | This is so we have a finer control over which locations' conditions are | |
2344 | being evaluated by GDB or the remote stub. */ | |
2345 | if (null_condition_or_parse_error) | |
2346 | { | |
2347 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2348 | { | |
2349 | loc = (*loc2p); | |
2350 | if (is_breakpoint (loc->owner) && loc->pspace->num == bl->pspace->num) | |
2351 | { | |
2352 | /* Only go as far as the first NULL bytecode is | |
2353 | located. */ | |
2354 | if (!loc->cond_bytecode) | |
2355 | return; | |
2356 | ||
2357 | free_agent_expr (loc->cond_bytecode); | |
2358 | loc->cond_bytecode = NULL; | |
2359 | } | |
2360 | } | |
2361 | } | |
2362 | ||
2363 | /* No NULL conditions or failed bytecode generation. Build a condition list | |
2364 | for this location's address. */ | |
2365 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2366 | { | |
2367 | loc = (*loc2p); | |
2368 | if (loc->cond | |
2369 | && is_breakpoint (loc->owner) | |
2370 | && loc->pspace->num == bl->pspace->num | |
2371 | && loc->owner->enable_state == bp_enabled | |
2372 | && loc->enabled) | |
2373 | /* Add the condition to the vector. This will be used later to send the | |
2374 | conditions to the target. */ | |
2375 | VEC_safe_push (agent_expr_p, bl->target_info.conditions, | |
2376 | loc->cond_bytecode); | |
2377 | } | |
2378 | ||
2379 | return; | |
2380 | } | |
2381 | ||
d3ce09f5 SS |
2382 | /* Parses a command described by string CMD into an agent expression |
2383 | bytecode suitable for evaluation by the bytecode interpreter. | |
2384 | Return NULL if there was any error during parsing. */ | |
2385 | ||
2386 | static struct agent_expr * | |
2387 | parse_cmd_to_aexpr (CORE_ADDR scope, char *cmd) | |
2388 | { | |
2389 | struct cleanup *old_cleanups = 0; | |
2390 | struct expression *expr, **argvec; | |
2391 | struct agent_expr *aexpr = NULL; | |
bbc13ae3 KS |
2392 | const char *cmdrest; |
2393 | const char *format_start, *format_end; | |
d3ce09f5 SS |
2394 | struct format_piece *fpieces; |
2395 | int nargs; | |
2396 | struct gdbarch *gdbarch = get_current_arch (); | |
2397 | ||
2398 | if (!cmd) | |
2399 | return NULL; | |
2400 | ||
2401 | cmdrest = cmd; | |
2402 | ||
2403 | if (*cmdrest == ',') | |
2404 | ++cmdrest; | |
bbc13ae3 | 2405 | cmdrest = skip_spaces_const (cmdrest); |
d3ce09f5 SS |
2406 | |
2407 | if (*cmdrest++ != '"') | |
2408 | error (_("No format string following the location")); | |
2409 | ||
2410 | format_start = cmdrest; | |
2411 | ||
2412 | fpieces = parse_format_string (&cmdrest); | |
2413 | ||
2414 | old_cleanups = make_cleanup (free_format_pieces_cleanup, &fpieces); | |
2415 | ||
2416 | format_end = cmdrest; | |
2417 | ||
2418 | if (*cmdrest++ != '"') | |
2419 | error (_("Bad format string, non-terminated '\"'.")); | |
2420 | ||
bbc13ae3 | 2421 | cmdrest = skip_spaces_const (cmdrest); |
d3ce09f5 SS |
2422 | |
2423 | if (!(*cmdrest == ',' || *cmdrest == '\0')) | |
2424 | error (_("Invalid argument syntax")); | |
2425 | ||
2426 | if (*cmdrest == ',') | |
2427 | cmdrest++; | |
bbc13ae3 | 2428 | cmdrest = skip_spaces_const (cmdrest); |
d3ce09f5 SS |
2429 | |
2430 | /* For each argument, make an expression. */ | |
2431 | ||
2432 | argvec = (struct expression **) alloca (strlen (cmd) | |
2433 | * sizeof (struct expression *)); | |
2434 | ||
2435 | nargs = 0; | |
2436 | while (*cmdrest != '\0') | |
2437 | { | |
bbc13ae3 | 2438 | const char *cmd1; |
d3ce09f5 SS |
2439 | |
2440 | cmd1 = cmdrest; | |
2441 | expr = parse_exp_1 (&cmd1, scope, block_for_pc (scope), 1); | |
2442 | argvec[nargs++] = expr; | |
2443 | cmdrest = cmd1; | |
2444 | if (*cmdrest == ',') | |
2445 | ++cmdrest; | |
2446 | } | |
2447 | ||
2448 | /* We don't want to stop processing, so catch any errors | |
2449 | that may show up. */ | |
492d29ea | 2450 | TRY |
d3ce09f5 SS |
2451 | { |
2452 | aexpr = gen_printf (scope, gdbarch, 0, 0, | |
2453 | format_start, format_end - format_start, | |
2454 | fpieces, nargs, argvec); | |
2455 | } | |
492d29ea | 2456 | CATCH (ex, RETURN_MASK_ERROR) |
d3ce09f5 SS |
2457 | { |
2458 | /* If we got here, it means the command could not be parsed to a valid | |
2459 | bytecode expression and thus can't be evaluated on the target's side. | |
2460 | It's no use iterating through the other commands. */ | |
492d29ea | 2461 | aexpr = NULL; |
d3ce09f5 | 2462 | } |
492d29ea PA |
2463 | END_CATCH |
2464 | ||
2465 | do_cleanups (old_cleanups); | |
d3ce09f5 | 2466 | |
d3ce09f5 SS |
2467 | /* We have a valid agent expression, return it. */ |
2468 | return aexpr; | |
2469 | } | |
2470 | ||
2471 | /* Based on location BL, create a list of breakpoint commands to be | |
2472 | passed on to the target. If we have duplicated locations with | |
2473 | different commands, we will add any such to the list. */ | |
2474 | ||
2475 | static void | |
2476 | build_target_command_list (struct bp_location *bl) | |
2477 | { | |
2478 | struct bp_location **locp = NULL, **loc2p; | |
2479 | int null_command_or_parse_error = 0; | |
2480 | int modified = bl->needs_update; | |
2481 | struct bp_location *loc; | |
2482 | ||
8b4f3082 PA |
2483 | /* Release commands left over from a previous insert. */ |
2484 | VEC_free (agent_expr_p, bl->target_info.tcommands); | |
2485 | ||
41fac0cf | 2486 | if (!target_can_run_breakpoint_commands ()) |
d3ce09f5 SS |
2487 | return; |
2488 | ||
41fac0cf PA |
2489 | /* For now, limit to agent-style dprintf breakpoints. */ |
2490 | if (dprintf_style != dprintf_style_agent) | |
d3ce09f5 SS |
2491 | return; |
2492 | ||
41fac0cf PA |
2493 | /* For now, if we have any duplicate location that isn't a dprintf, |
2494 | don't install the target-side commands, as that would make the | |
2495 | breakpoint not be reported to the core, and we'd lose | |
2496 | control. */ | |
2497 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2498 | { | |
2499 | loc = (*loc2p); | |
2500 | if (is_breakpoint (loc->owner) | |
2501 | && loc->pspace->num == bl->pspace->num | |
2502 | && loc->owner->type != bp_dprintf) | |
2503 | return; | |
2504 | } | |
2505 | ||
d3ce09f5 SS |
2506 | /* Do a first pass to check for locations with no assigned |
2507 | conditions or conditions that fail to parse to a valid agent expression | |
2508 | bytecode. If any of these happen, then it's no use to send conditions | |
2509 | to the target since this location will always trigger and generate a | |
2510 | response back to GDB. */ | |
2511 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2512 | { | |
2513 | loc = (*loc2p); | |
2514 | if (is_breakpoint (loc->owner) && loc->pspace->num == bl->pspace->num) | |
2515 | { | |
2516 | if (modified) | |
2517 | { | |
2518 | struct agent_expr *aexpr; | |
2519 | ||
2520 | /* Re-parse the commands since something changed. In that | |
2521 | case we already freed the command bytecodes (see | |
2522 | force_breakpoint_reinsertion). We just | |
2523 | need to parse the command to bytecodes again. */ | |
2524 | aexpr = parse_cmd_to_aexpr (bl->address, | |
2525 | loc->owner->extra_string); | |
2526 | loc->cmd_bytecode = aexpr; | |
2527 | ||
2528 | if (!aexpr) | |
2529 | continue; | |
2530 | } | |
2531 | ||
2532 | /* If we have a NULL bytecode expression, it means something | |
2533 | went wrong or we have a null command expression. */ | |
2534 | if (!loc->cmd_bytecode) | |
2535 | { | |
2536 | null_command_or_parse_error = 1; | |
2537 | break; | |
2538 | } | |
2539 | } | |
2540 | } | |
2541 | ||
2542 | /* If anything failed, then we're not doing target-side commands, | |
2543 | and so clean up. */ | |
2544 | if (null_command_or_parse_error) | |
2545 | { | |
2546 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2547 | { | |
2548 | loc = (*loc2p); | |
2549 | if (is_breakpoint (loc->owner) | |
2550 | && loc->pspace->num == bl->pspace->num) | |
2551 | { | |
2552 | /* Only go as far as the first NULL bytecode is | |
2553 | located. */ | |
40fb6c5e | 2554 | if (loc->cmd_bytecode == NULL) |
d3ce09f5 SS |
2555 | return; |
2556 | ||
40fb6c5e HZ |
2557 | free_agent_expr (loc->cmd_bytecode); |
2558 | loc->cmd_bytecode = NULL; | |
d3ce09f5 SS |
2559 | } |
2560 | } | |
2561 | } | |
2562 | ||
2563 | /* No NULL commands or failed bytecode generation. Build a command list | |
2564 | for this location's address. */ | |
2565 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2566 | { | |
2567 | loc = (*loc2p); | |
2568 | if (loc->owner->extra_string | |
2569 | && is_breakpoint (loc->owner) | |
2570 | && loc->pspace->num == bl->pspace->num | |
2571 | && loc->owner->enable_state == bp_enabled | |
2572 | && loc->enabled) | |
2573 | /* Add the command to the vector. This will be used later | |
2574 | to send the commands to the target. */ | |
2575 | VEC_safe_push (agent_expr_p, bl->target_info.tcommands, | |
2576 | loc->cmd_bytecode); | |
2577 | } | |
2578 | ||
2579 | bl->target_info.persist = 0; | |
2580 | /* Maybe flag this location as persistent. */ | |
2581 | if (bl->owner->type == bp_dprintf && disconnected_dprintf) | |
2582 | bl->target_info.persist = 1; | |
2583 | } | |
2584 | ||
35df4500 TJB |
2585 | /* Insert a low-level "breakpoint" of some type. BL is the breakpoint |
2586 | location. Any error messages are printed to TMP_ERROR_STREAM; and | |
3fbb6ffa | 2587 | DISABLED_BREAKS, and HW_BREAKPOINT_ERROR are used to report problems. |
c30eee59 TJB |
2588 | Returns 0 for success, 1 if the bp_location type is not supported or |
2589 | -1 for failure. | |
879bfdc2 | 2590 | |
4a64f543 MS |
2591 | NOTE drow/2003-09-09: This routine could be broken down to an |
2592 | object-style method for each breakpoint or catchpoint type. */ | |
26bb91f3 | 2593 | static int |
35df4500 | 2594 | insert_bp_location (struct bp_location *bl, |
26bb91f3 | 2595 | struct ui_file *tmp_error_stream, |
3fbb6ffa | 2596 | int *disabled_breaks, |
dd61ec5c MW |
2597 | int *hw_breakpoint_error, |
2598 | int *hw_bp_error_explained_already) | |
879bfdc2 | 2599 | { |
0000e5cc PA |
2600 | enum errors bp_err = GDB_NO_ERROR; |
2601 | const char *bp_err_message = NULL; | |
879bfdc2 | 2602 | |
b775012e | 2603 | if (!should_be_inserted (bl) || (bl->inserted && !bl->needs_update)) |
879bfdc2 DJ |
2604 | return 0; |
2605 | ||
35c63cd8 JB |
2606 | /* Note we don't initialize bl->target_info, as that wipes out |
2607 | the breakpoint location's shadow_contents if the breakpoint | |
2608 | is still inserted at that location. This in turn breaks | |
2609 | target_read_memory which depends on these buffers when | |
2610 | a memory read is requested at the breakpoint location: | |
2611 | Once the target_info has been wiped, we fail to see that | |
2612 | we have a breakpoint inserted at that address and thus | |
2613 | read the breakpoint instead of returning the data saved in | |
2614 | the breakpoint location's shadow contents. */ | |
0d5ed153 | 2615 | bl->target_info.reqstd_address = bl->address; |
35df4500 | 2616 | bl->target_info.placed_address_space = bl->pspace->aspace; |
f1310107 | 2617 | bl->target_info.length = bl->length; |
8181d85f | 2618 | |
b775012e LM |
2619 | /* When working with target-side conditions, we must pass all the conditions |
2620 | for the same breakpoint address down to the target since GDB will not | |
2621 | insert those locations. With a list of breakpoint conditions, the target | |
2622 | can decide when to stop and notify GDB. */ | |
2623 | ||
2624 | if (is_breakpoint (bl->owner)) | |
2625 | { | |
2626 | build_target_condition_list (bl); | |
d3ce09f5 SS |
2627 | build_target_command_list (bl); |
2628 | /* Reset the modification marker. */ | |
b775012e LM |
2629 | bl->needs_update = 0; |
2630 | } | |
2631 | ||
35df4500 TJB |
2632 | if (bl->loc_type == bp_loc_software_breakpoint |
2633 | || bl->loc_type == bp_loc_hardware_breakpoint) | |
879bfdc2 | 2634 | { |
35df4500 | 2635 | if (bl->owner->type != bp_hardware_breakpoint) |
765dc015 VP |
2636 | { |
2637 | /* If the explicitly specified breakpoint type | |
2638 | is not hardware breakpoint, check the memory map to see | |
2639 | if the breakpoint address is in read only memory or not. | |
4a64f543 | 2640 | |
765dc015 VP |
2641 | Two important cases are: |
2642 | - location type is not hardware breakpoint, memory | |
2643 | is readonly. We change the type of the location to | |
2644 | hardware breakpoint. | |
4a64f543 MS |
2645 | - location type is hardware breakpoint, memory is |
2646 | read-write. This means we've previously made the | |
2647 | location hardware one, but then the memory map changed, | |
2648 | so we undo. | |
765dc015 | 2649 | |
4a64f543 MS |
2650 | When breakpoints are removed, remove_breakpoints will use |
2651 | location types we've just set here, the only possible | |
2652 | problem is that memory map has changed during running | |
2653 | program, but it's not going to work anyway with current | |
2654 | gdb. */ | |
765dc015 | 2655 | struct mem_region *mr |
0d5ed153 | 2656 | = lookup_mem_region (bl->target_info.reqstd_address); |
765dc015 VP |
2657 | |
2658 | if (mr) | |
2659 | { | |
2660 | if (automatic_hardware_breakpoints) | |
2661 | { | |
765dc015 VP |
2662 | enum bp_loc_type new_type; |
2663 | ||
2664 | if (mr->attrib.mode != MEM_RW) | |
2665 | new_type = bp_loc_hardware_breakpoint; | |
2666 | else | |
2667 | new_type = bp_loc_software_breakpoint; | |
2668 | ||
35df4500 | 2669 | if (new_type != bl->loc_type) |
765dc015 VP |
2670 | { |
2671 | static int said = 0; | |
cc59ec59 | 2672 | |
35df4500 | 2673 | bl->loc_type = new_type; |
765dc015 VP |
2674 | if (!said) |
2675 | { | |
3e43a32a MS |
2676 | fprintf_filtered (gdb_stdout, |
2677 | _("Note: automatically using " | |
2678 | "hardware breakpoints for " | |
2679 | "read-only addresses.\n")); | |
765dc015 VP |
2680 | said = 1; |
2681 | } | |
2682 | } | |
2683 | } | |
35df4500 | 2684 | else if (bl->loc_type == bp_loc_software_breakpoint |
0fec99e8 PA |
2685 | && mr->attrib.mode != MEM_RW) |
2686 | { | |
2687 | fprintf_unfiltered (tmp_error_stream, | |
2688 | _("Cannot insert breakpoint %d.\n" | |
2689 | "Cannot set software breakpoint " | |
2690 | "at read-only address %s\n"), | |
2691 | bl->owner->number, | |
2692 | paddress (bl->gdbarch, bl->address)); | |
2693 | return 1; | |
2694 | } | |
765dc015 VP |
2695 | } |
2696 | } | |
2697 | ||
879bfdc2 DJ |
2698 | /* First check to see if we have to handle an overlay. */ |
2699 | if (overlay_debugging == ovly_off | |
35df4500 TJB |
2700 | || bl->section == NULL |
2701 | || !(section_is_overlay (bl->section))) | |
879bfdc2 DJ |
2702 | { |
2703 | /* No overlay handling: just set the breakpoint. */ | |
492d29ea | 2704 | TRY |
dd61ec5c | 2705 | { |
0000e5cc PA |
2706 | int val; |
2707 | ||
dd61ec5c | 2708 | val = bl->owner->ops->insert_location (bl); |
0000e5cc PA |
2709 | if (val) |
2710 | bp_err = GENERIC_ERROR; | |
dd61ec5c | 2711 | } |
492d29ea | 2712 | CATCH (e, RETURN_MASK_ALL) |
dd61ec5c | 2713 | { |
0000e5cc PA |
2714 | bp_err = e.error; |
2715 | bp_err_message = e.message; | |
dd61ec5c | 2716 | } |
492d29ea | 2717 | END_CATCH |
879bfdc2 DJ |
2718 | } |
2719 | else | |
2720 | { | |
4a64f543 | 2721 | /* This breakpoint is in an overlay section. |
879bfdc2 DJ |
2722 | Shall we set a breakpoint at the LMA? */ |
2723 | if (!overlay_events_enabled) | |
2724 | { | |
2725 | /* Yes -- overlay event support is not active, | |
2726 | so we must try to set a breakpoint at the LMA. | |
2727 | This will not work for a hardware breakpoint. */ | |
35df4500 | 2728 | if (bl->loc_type == bp_loc_hardware_breakpoint) |
8a3fe4f8 | 2729 | warning (_("hardware breakpoint %d not supported in overlay!"), |
35df4500 | 2730 | bl->owner->number); |
879bfdc2 DJ |
2731 | else |
2732 | { | |
35df4500 TJB |
2733 | CORE_ADDR addr = overlay_unmapped_address (bl->address, |
2734 | bl->section); | |
879bfdc2 | 2735 | /* Set a software (trap) breakpoint at the LMA. */ |
35df4500 | 2736 | bl->overlay_target_info = bl->target_info; |
0d5ed153 | 2737 | bl->overlay_target_info.reqstd_address = addr; |
0000e5cc PA |
2738 | |
2739 | /* No overlay handling: just set the breakpoint. */ | |
492d29ea | 2740 | TRY |
0000e5cc PA |
2741 | { |
2742 | int val; | |
2743 | ||
2744 | val = target_insert_breakpoint (bl->gdbarch, | |
2745 | &bl->overlay_target_info); | |
2746 | if (val) | |
2747 | bp_err = GENERIC_ERROR; | |
2748 | } | |
492d29ea | 2749 | CATCH (e, RETURN_MASK_ALL) |
0000e5cc PA |
2750 | { |
2751 | bp_err = e.error; | |
2752 | bp_err_message = e.message; | |
2753 | } | |
492d29ea | 2754 | END_CATCH |
0000e5cc PA |
2755 | |
2756 | if (bp_err != GDB_NO_ERROR) | |
99361f52 | 2757 | fprintf_unfiltered (tmp_error_stream, |
3e43a32a MS |
2758 | "Overlay breakpoint %d " |
2759 | "failed: in ROM?\n", | |
35df4500 | 2760 | bl->owner->number); |
879bfdc2 DJ |
2761 | } |
2762 | } | |
2763 | /* Shall we set a breakpoint at the VMA? */ | |
35df4500 | 2764 | if (section_is_mapped (bl->section)) |
879bfdc2 DJ |
2765 | { |
2766 | /* Yes. This overlay section is mapped into memory. */ | |
492d29ea | 2767 | TRY |
dd61ec5c | 2768 | { |
0000e5cc PA |
2769 | int val; |
2770 | ||
dd61ec5c | 2771 | val = bl->owner->ops->insert_location (bl); |
0000e5cc PA |
2772 | if (val) |
2773 | bp_err = GENERIC_ERROR; | |
dd61ec5c | 2774 | } |
492d29ea | 2775 | CATCH (e, RETURN_MASK_ALL) |
dd61ec5c | 2776 | { |
0000e5cc PA |
2777 | bp_err = e.error; |
2778 | bp_err_message = e.message; | |
dd61ec5c | 2779 | } |
492d29ea | 2780 | END_CATCH |
879bfdc2 DJ |
2781 | } |
2782 | else | |
2783 | { | |
2784 | /* No. This breakpoint will not be inserted. | |
2785 | No error, but do not mark the bp as 'inserted'. */ | |
2786 | return 0; | |
2787 | } | |
2788 | } | |
2789 | ||
0000e5cc | 2790 | if (bp_err != GDB_NO_ERROR) |
879bfdc2 DJ |
2791 | { |
2792 | /* Can't set the breakpoint. */ | |
0000e5cc PA |
2793 | |
2794 | /* In some cases, we might not be able to insert a | |
2795 | breakpoint in a shared library that has already been | |
2796 | removed, but we have not yet processed the shlib unload | |
2797 | event. Unfortunately, some targets that implement | |
076855f9 PA |
2798 | breakpoint insertion themselves can't tell why the |
2799 | breakpoint insertion failed (e.g., the remote target | |
2800 | doesn't define error codes), so we must treat generic | |
2801 | errors as memory errors. */ | |
0000e5cc | 2802 | if ((bp_err == GENERIC_ERROR || bp_err == MEMORY_ERROR) |
076855f9 | 2803 | && bl->loc_type == bp_loc_software_breakpoint |
08351840 | 2804 | && (solib_name_from_address (bl->pspace, bl->address) |
d03de421 PA |
2805 | || shared_objfile_contains_address_p (bl->pspace, |
2806 | bl->address))) | |
879bfdc2 | 2807 | { |
4a64f543 | 2808 | /* See also: disable_breakpoints_in_shlibs. */ |
35df4500 | 2809 | bl->shlib_disabled = 1; |
8d3788bd | 2810 | observer_notify_breakpoint_modified (bl->owner); |
3fbb6ffa TJB |
2811 | if (!*disabled_breaks) |
2812 | { | |
2813 | fprintf_unfiltered (tmp_error_stream, | |
2814 | "Cannot insert breakpoint %d.\n", | |
2815 | bl->owner->number); | |
2816 | fprintf_unfiltered (tmp_error_stream, | |
2817 | "Temporarily disabling shared " | |
2818 | "library breakpoints:\n"); | |
2819 | } | |
2820 | *disabled_breaks = 1; | |
879bfdc2 | 2821 | fprintf_unfiltered (tmp_error_stream, |
35df4500 | 2822 | "breakpoint #%d\n", bl->owner->number); |
0000e5cc | 2823 | return 0; |
879bfdc2 DJ |
2824 | } |
2825 | else | |
879bfdc2 | 2826 | { |
35df4500 | 2827 | if (bl->loc_type == bp_loc_hardware_breakpoint) |
879bfdc2 | 2828 | { |
0000e5cc PA |
2829 | *hw_breakpoint_error = 1; |
2830 | *hw_bp_error_explained_already = bp_err_message != NULL; | |
dd61ec5c MW |
2831 | fprintf_unfiltered (tmp_error_stream, |
2832 | "Cannot insert hardware breakpoint %d%s", | |
0000e5cc PA |
2833 | bl->owner->number, bp_err_message ? ":" : ".\n"); |
2834 | if (bp_err_message != NULL) | |
2835 | fprintf_unfiltered (tmp_error_stream, "%s.\n", bp_err_message); | |
879bfdc2 DJ |
2836 | } |
2837 | else | |
2838 | { | |
0000e5cc PA |
2839 | if (bp_err_message == NULL) |
2840 | { | |
2841 | char *message | |
2842 | = memory_error_message (TARGET_XFER_E_IO, | |
2843 | bl->gdbarch, bl->address); | |
2844 | struct cleanup *old_chain = make_cleanup (xfree, message); | |
2845 | ||
2846 | fprintf_unfiltered (tmp_error_stream, | |
2847 | "Cannot insert breakpoint %d.\n" | |
2848 | "%s\n", | |
2849 | bl->owner->number, message); | |
2850 | do_cleanups (old_chain); | |
2851 | } | |
2852 | else | |
2853 | { | |
2854 | fprintf_unfiltered (tmp_error_stream, | |
2855 | "Cannot insert breakpoint %d: %s\n", | |
2856 | bl->owner->number, | |
2857 | bp_err_message); | |
2858 | } | |
879bfdc2 | 2859 | } |
0000e5cc | 2860 | return 1; |
879bfdc2 DJ |
2861 | |
2862 | } | |
2863 | } | |
2864 | else | |
35df4500 | 2865 | bl->inserted = 1; |
879bfdc2 | 2866 | |
0000e5cc | 2867 | return 0; |
879bfdc2 DJ |
2868 | } |
2869 | ||
35df4500 | 2870 | else if (bl->loc_type == bp_loc_hardware_watchpoint |
879bfdc2 | 2871 | /* NOTE drow/2003-09-08: This state only exists for removing |
4a64f543 | 2872 | watchpoints. It's not clear that it's necessary... */ |
35df4500 | 2873 | && bl->owner->disposition != disp_del_at_next_stop) |
879bfdc2 | 2874 | { |
0000e5cc PA |
2875 | int val; |
2876 | ||
77b06cd7 TJB |
2877 | gdb_assert (bl->owner->ops != NULL |
2878 | && bl->owner->ops->insert_location != NULL); | |
2879 | ||
2880 | val = bl->owner->ops->insert_location (bl); | |
85d721b8 PA |
2881 | |
2882 | /* If trying to set a read-watchpoint, and it turns out it's not | |
2883 | supported, try emulating one with an access watchpoint. */ | |
35df4500 | 2884 | if (val == 1 && bl->watchpoint_type == hw_read) |
85d721b8 PA |
2885 | { |
2886 | struct bp_location *loc, **loc_temp; | |
2887 | ||
2888 | /* But don't try to insert it, if there's already another | |
2889 | hw_access location that would be considered a duplicate | |
2890 | of this one. */ | |
2891 | ALL_BP_LOCATIONS (loc, loc_temp) | |
35df4500 | 2892 | if (loc != bl |
85d721b8 | 2893 | && loc->watchpoint_type == hw_access |
35df4500 | 2894 | && watchpoint_locations_match (bl, loc)) |
85d721b8 | 2895 | { |
35df4500 TJB |
2896 | bl->duplicate = 1; |
2897 | bl->inserted = 1; | |
2898 | bl->target_info = loc->target_info; | |
2899 | bl->watchpoint_type = hw_access; | |
85d721b8 PA |
2900 | val = 0; |
2901 | break; | |
2902 | } | |
2903 | ||
2904 | if (val == 1) | |
2905 | { | |
77b06cd7 TJB |
2906 | bl->watchpoint_type = hw_access; |
2907 | val = bl->owner->ops->insert_location (bl); | |
2908 | ||
2909 | if (val) | |
2910 | /* Back to the original value. */ | |
2911 | bl->watchpoint_type = hw_read; | |
85d721b8 PA |
2912 | } |
2913 | } | |
2914 | ||
35df4500 | 2915 | bl->inserted = (val == 0); |
879bfdc2 DJ |
2916 | } |
2917 | ||
35df4500 | 2918 | else if (bl->owner->type == bp_catchpoint) |
879bfdc2 | 2919 | { |
0000e5cc PA |
2920 | int val; |
2921 | ||
77b06cd7 TJB |
2922 | gdb_assert (bl->owner->ops != NULL |
2923 | && bl->owner->ops->insert_location != NULL); | |
2924 | ||
2925 | val = bl->owner->ops->insert_location (bl); | |
2926 | if (val) | |
2927 | { | |
2928 | bl->owner->enable_state = bp_disabled; | |
2929 | ||
2930 | if (val == 1) | |
2931 | warning (_("\ | |
2932 | Error inserting catchpoint %d: Your system does not support this type\n\ | |
2933 | of catchpoint."), bl->owner->number); | |
2934 | else | |
2935 | warning (_("Error inserting catchpoint %d."), bl->owner->number); | |
2936 | } | |
2937 | ||
2938 | bl->inserted = (val == 0); | |
1640b821 DJ |
2939 | |
2940 | /* We've already printed an error message if there was a problem | |
2941 | inserting this catchpoint, and we've disabled the catchpoint, | |
2942 | so just return success. */ | |
2943 | return 0; | |
879bfdc2 DJ |
2944 | } |
2945 | ||
2946 | return 0; | |
2947 | } | |
2948 | ||
6c95b8df PA |
2949 | /* This function is called when program space PSPACE is about to be |
2950 | deleted. It takes care of updating breakpoints to not reference | |
2951 | PSPACE anymore. */ | |
2952 | ||
2953 | void | |
2954 | breakpoint_program_space_exit (struct program_space *pspace) | |
2955 | { | |
2956 | struct breakpoint *b, *b_temp; | |
876fa593 | 2957 | struct bp_location *loc, **loc_temp; |
6c95b8df PA |
2958 | |
2959 | /* Remove any breakpoint that was set through this program space. */ | |
2960 | ALL_BREAKPOINTS_SAFE (b, b_temp) | |
2961 | { | |
2962 | if (b->pspace == pspace) | |
2963 | delete_breakpoint (b); | |
2964 | } | |
2965 | ||
2966 | /* Breakpoints set through other program spaces could have locations | |
2967 | bound to PSPACE as well. Remove those. */ | |
876fa593 | 2968 | ALL_BP_LOCATIONS (loc, loc_temp) |
6c95b8df PA |
2969 | { |
2970 | struct bp_location *tmp; | |
2971 | ||
2972 | if (loc->pspace == pspace) | |
2973 | { | |
2bdf28a0 | 2974 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */ |
6c95b8df PA |
2975 | if (loc->owner->loc == loc) |
2976 | loc->owner->loc = loc->next; | |
2977 | else | |
2978 | for (tmp = loc->owner->loc; tmp->next != NULL; tmp = tmp->next) | |
2979 | if (tmp->next == loc) | |
2980 | { | |
2981 | tmp->next = loc->next; | |
2982 | break; | |
2983 | } | |
2984 | } | |
2985 | } | |
2986 | ||
2987 | /* Now update the global location list to permanently delete the | |
2988 | removed locations above. */ | |
44702360 | 2989 | update_global_location_list (UGLL_DONT_INSERT); |
6c95b8df PA |
2990 | } |
2991 | ||
74960c60 VP |
2992 | /* Make sure all breakpoints are inserted in inferior. |
2993 | Throws exception on any error. | |
2994 | A breakpoint that is already inserted won't be inserted | |
2995 | again, so calling this function twice is safe. */ | |
2996 | void | |
2997 | insert_breakpoints (void) | |
2998 | { | |
2999 | struct breakpoint *bpt; | |
3000 | ||
3001 | ALL_BREAKPOINTS (bpt) | |
3002 | if (is_hardware_watchpoint (bpt)) | |
3a5c3e22 PA |
3003 | { |
3004 | struct watchpoint *w = (struct watchpoint *) bpt; | |
3005 | ||
3006 | update_watchpoint (w, 0 /* don't reparse. */); | |
3007 | } | |
74960c60 | 3008 | |
04086b45 PA |
3009 | /* Updating watchpoints creates new locations, so update the global |
3010 | location list. Explicitly tell ugll to insert locations and | |
3011 | ignore breakpoints_always_inserted_mode. */ | |
3012 | update_global_location_list (UGLL_INSERT); | |
74960c60 VP |
3013 | } |
3014 | ||
20388dd6 YQ |
3015 | /* Invoke CALLBACK for each of bp_location. */ |
3016 | ||
3017 | void | |
3018 | iterate_over_bp_locations (walk_bp_location_callback callback) | |
3019 | { | |
3020 | struct bp_location *loc, **loc_tmp; | |
3021 | ||
3022 | ALL_BP_LOCATIONS (loc, loc_tmp) | |
3023 | { | |
3024 | callback (loc, NULL); | |
3025 | } | |
3026 | } | |
3027 | ||
b775012e LM |
3028 | /* This is used when we need to synch breakpoint conditions between GDB and the |
3029 | target. It is the case with deleting and disabling of breakpoints when using | |
3030 | always-inserted mode. */ | |
3031 | ||
3032 | static void | |
3033 | update_inserted_breakpoint_locations (void) | |
3034 | { | |
3035 | struct bp_location *bl, **blp_tmp; | |
3036 | int error_flag = 0; | |
3037 | int val = 0; | |
3038 | int disabled_breaks = 0; | |
3039 | int hw_breakpoint_error = 0; | |
dd61ec5c | 3040 | int hw_bp_details_reported = 0; |
b775012e LM |
3041 | |
3042 | struct ui_file *tmp_error_stream = mem_fileopen (); | |
3043 | struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_error_stream); | |
3044 | ||
3045 | /* Explicitly mark the warning -- this will only be printed if | |
3046 | there was an error. */ | |
3047 | fprintf_unfiltered (tmp_error_stream, "Warning:\n"); | |
3048 | ||
3049 | save_current_space_and_thread (); | |
3050 | ||
3051 | ALL_BP_LOCATIONS (bl, blp_tmp) | |
3052 | { | |
3053 | /* We only want to update software breakpoints and hardware | |
3054 | breakpoints. */ | |
3055 | if (!is_breakpoint (bl->owner)) | |
3056 | continue; | |
3057 | ||
3058 | /* We only want to update locations that are already inserted | |
3059 | and need updating. This is to avoid unwanted insertion during | |
3060 | deletion of breakpoints. */ | |
3061 | if (!bl->inserted || (bl->inserted && !bl->needs_update)) | |
3062 | continue; | |
3063 | ||
3064 | switch_to_program_space_and_thread (bl->pspace); | |
3065 | ||
3066 | /* For targets that support global breakpoints, there's no need | |
3067 | to select an inferior to insert breakpoint to. In fact, even | |
3068 | if we aren't attached to any process yet, we should still | |
3069 | insert breakpoints. */ | |
f5656ead | 3070 | if (!gdbarch_has_global_breakpoints (target_gdbarch ()) |
b775012e LM |
3071 | && ptid_equal (inferior_ptid, null_ptid)) |
3072 | continue; | |
3073 | ||
3074 | val = insert_bp_location (bl, tmp_error_stream, &disabled_breaks, | |
dd61ec5c | 3075 | &hw_breakpoint_error, &hw_bp_details_reported); |
b775012e LM |
3076 | if (val) |
3077 | error_flag = val; | |
3078 | } | |
3079 | ||
3080 | if (error_flag) | |
3081 | { | |
3082 | target_terminal_ours_for_output (); | |
3083 | error_stream (tmp_error_stream); | |
3084 | } | |
3085 | ||
3086 | do_cleanups (cleanups); | |
3087 | } | |
3088 | ||
c30eee59 | 3089 | /* Used when starting or continuing the program. */ |
c906108c | 3090 | |
74960c60 VP |
3091 | static void |
3092 | insert_breakpoint_locations (void) | |
c906108c | 3093 | { |
a5606eee | 3094 | struct breakpoint *bpt; |
35df4500 | 3095 | struct bp_location *bl, **blp_tmp; |
eacd795a | 3096 | int error_flag = 0; |
c906108c | 3097 | int val = 0; |
3fbb6ffa | 3098 | int disabled_breaks = 0; |
81d0cc19 | 3099 | int hw_breakpoint_error = 0; |
dd61ec5c | 3100 | int hw_bp_error_explained_already = 0; |
c906108c | 3101 | |
81d0cc19 | 3102 | struct ui_file *tmp_error_stream = mem_fileopen (); |
f7545552 | 3103 | struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_error_stream); |
74960c60 | 3104 | |
81d0cc19 GS |
3105 | /* Explicitly mark the warning -- this will only be printed if |
3106 | there was an error. */ | |
3107 | fprintf_unfiltered (tmp_error_stream, "Warning:\n"); | |
6c95b8df PA |
3108 | |
3109 | save_current_space_and_thread (); | |
3110 | ||
35df4500 | 3111 | ALL_BP_LOCATIONS (bl, blp_tmp) |
879bfdc2 | 3112 | { |
b775012e | 3113 | if (!should_be_inserted (bl) || (bl->inserted && !bl->needs_update)) |
879bfdc2 DJ |
3114 | continue; |
3115 | ||
4a64f543 MS |
3116 | /* There is no point inserting thread-specific breakpoints if |
3117 | the thread no longer exists. ALL_BP_LOCATIONS bp_location | |
3118 | has BL->OWNER always non-NULL. */ | |
35df4500 TJB |
3119 | if (bl->owner->thread != -1 |
3120 | && !valid_thread_id (bl->owner->thread)) | |
f365de73 AS |
3121 | continue; |
3122 | ||
35df4500 | 3123 | switch_to_program_space_and_thread (bl->pspace); |
6c95b8df PA |
3124 | |
3125 | /* For targets that support global breakpoints, there's no need | |
3126 | to select an inferior to insert breakpoint to. In fact, even | |
3127 | if we aren't attached to any process yet, we should still | |
3128 | insert breakpoints. */ | |
f5656ead | 3129 | if (!gdbarch_has_global_breakpoints (target_gdbarch ()) |
6c95b8df PA |
3130 | && ptid_equal (inferior_ptid, null_ptid)) |
3131 | continue; | |
3132 | ||
3fbb6ffa | 3133 | val = insert_bp_location (bl, tmp_error_stream, &disabled_breaks, |
dd61ec5c | 3134 | &hw_breakpoint_error, &hw_bp_error_explained_already); |
879bfdc2 | 3135 | if (val) |
eacd795a | 3136 | error_flag = val; |
879bfdc2 | 3137 | } |
c906108c | 3138 | |
4a64f543 MS |
3139 | /* If we failed to insert all locations of a watchpoint, remove |
3140 | them, as half-inserted watchpoint is of limited use. */ | |
a5606eee VP |
3141 | ALL_BREAKPOINTS (bpt) |
3142 | { | |
3143 | int some_failed = 0; | |
3144 | struct bp_location *loc; | |
3145 | ||
3146 | if (!is_hardware_watchpoint (bpt)) | |
3147 | continue; | |
3148 | ||
d6b74ac4 | 3149 | if (!breakpoint_enabled (bpt)) |
a5606eee | 3150 | continue; |
74960c60 VP |
3151 | |
3152 | if (bpt->disposition == disp_del_at_next_stop) | |
3153 | continue; | |
a5606eee VP |
3154 | |
3155 | for (loc = bpt->loc; loc; loc = loc->next) | |
56710373 | 3156 | if (!loc->inserted && should_be_inserted (loc)) |
a5606eee VP |
3157 | { |
3158 | some_failed = 1; | |
3159 | break; | |
3160 | } | |
3161 | if (some_failed) | |
3162 | { | |
3163 | for (loc = bpt->loc; loc; loc = loc->next) | |
3164 | if (loc->inserted) | |
3165 | remove_breakpoint (loc, mark_uninserted); | |
3166 | ||
3167 | hw_breakpoint_error = 1; | |
3168 | fprintf_unfiltered (tmp_error_stream, | |
3169 | "Could not insert hardware watchpoint %d.\n", | |
3170 | bpt->number); | |
eacd795a | 3171 | error_flag = -1; |
a5606eee VP |
3172 | } |
3173 | } | |
3174 | ||
eacd795a | 3175 | if (error_flag) |
81d0cc19 GS |
3176 | { |
3177 | /* If a hardware breakpoint or watchpoint was inserted, add a | |
3178 | message about possibly exhausted resources. */ | |
dd61ec5c | 3179 | if (hw_breakpoint_error && !hw_bp_error_explained_already) |
81d0cc19 | 3180 | { |
c6510018 MS |
3181 | fprintf_unfiltered (tmp_error_stream, |
3182 | "Could not insert hardware breakpoints:\n\ | |
3183 | You may have requested too many hardware breakpoints/watchpoints.\n"); | |
81d0cc19 | 3184 | } |
81d0cc19 GS |
3185 | target_terminal_ours_for_output (); |
3186 | error_stream (tmp_error_stream); | |
3187 | } | |
f7545552 TT |
3188 | |
3189 | do_cleanups (cleanups); | |
c906108c SS |
3190 | } |
3191 | ||
c30eee59 TJB |
3192 | /* Used when the program stops. |
3193 | Returns zero if successful, or non-zero if there was a problem | |
3194 | removing a breakpoint location. */ | |
3195 | ||
c906108c | 3196 | int |
fba45db2 | 3197 | remove_breakpoints (void) |
c906108c | 3198 | { |
35df4500 | 3199 | struct bp_location *bl, **blp_tmp; |
3a1bae8e | 3200 | int val = 0; |
c906108c | 3201 | |
35df4500 | 3202 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 3203 | { |
1e4d1764 | 3204 | if (bl->inserted && !is_tracepoint (bl->owner)) |
35df4500 | 3205 | val |= remove_breakpoint (bl, mark_uninserted); |
c5aa993b | 3206 | } |
3a1bae8e | 3207 | return val; |
c906108c SS |
3208 | } |
3209 | ||
49fa26b0 PA |
3210 | /* When a thread exits, remove breakpoints that are related to |
3211 | that thread. */ | |
3212 | ||
3213 | static void | |
3214 | remove_threaded_breakpoints (struct thread_info *tp, int silent) | |
3215 | { | |
3216 | struct breakpoint *b, *b_tmp; | |
3217 | ||
3218 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
3219 | { | |
96181529 | 3220 | if (b->thread == tp->num && user_breakpoint_p (b)) |
49fa26b0 PA |
3221 | { |
3222 | b->disposition = disp_del_at_next_stop; | |
3223 | ||
3224 | printf_filtered (_("\ | |
46ecd527 | 3225 | Thread-specific breakpoint %d deleted - thread %d no longer in the thread list.\n"), |
49fa26b0 PA |
3226 | b->number, tp->num); |
3227 | ||
3228 | /* Hide it from the user. */ | |
3229 | b->number = 0; | |
3230 | } | |
3231 | } | |
3232 | } | |
3233 | ||
6c95b8df PA |
3234 | /* Remove breakpoints of process PID. */ |
3235 | ||
3236 | int | |
3237 | remove_breakpoints_pid (int pid) | |
3238 | { | |
35df4500 | 3239 | struct bp_location *bl, **blp_tmp; |
6c95b8df PA |
3240 | int val; |
3241 | struct inferior *inf = find_inferior_pid (pid); | |
3242 | ||
35df4500 | 3243 | ALL_BP_LOCATIONS (bl, blp_tmp) |
6c95b8df | 3244 | { |
35df4500 | 3245 | if (bl->pspace != inf->pspace) |
6c95b8df PA |
3246 | continue; |
3247 | ||
fc126975 | 3248 | if (bl->inserted && !bl->target_info.persist) |
6c95b8df | 3249 | { |
35df4500 | 3250 | val = remove_breakpoint (bl, mark_uninserted); |
6c95b8df PA |
3251 | if (val != 0) |
3252 | return val; | |
3253 | } | |
3254 | } | |
3255 | return 0; | |
3256 | } | |
3257 | ||
c906108c | 3258 | int |
fba45db2 | 3259 | reattach_breakpoints (int pid) |
c906108c | 3260 | { |
6c95b8df | 3261 | struct cleanup *old_chain; |
35df4500 | 3262 | struct bp_location *bl, **blp_tmp; |
c906108c | 3263 | int val; |
86b887df | 3264 | struct ui_file *tmp_error_stream; |
dd61ec5c | 3265 | int dummy1 = 0, dummy2 = 0, dummy3 = 0; |
6c95b8df PA |
3266 | struct inferior *inf; |
3267 | struct thread_info *tp; | |
3268 | ||
3269 | tp = any_live_thread_of_process (pid); | |
3270 | if (tp == NULL) | |
3271 | return 1; | |
3272 | ||
3273 | inf = find_inferior_pid (pid); | |
3274 | old_chain = save_inferior_ptid (); | |
3275 | ||
3276 | inferior_ptid = tp->ptid; | |
a4954f26 | 3277 | |
86b887df | 3278 | tmp_error_stream = mem_fileopen (); |
a4954f26 | 3279 | make_cleanup_ui_file_delete (tmp_error_stream); |
c906108c | 3280 | |
35df4500 | 3281 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 3282 | { |
35df4500 | 3283 | if (bl->pspace != inf->pspace) |
6c95b8df PA |
3284 | continue; |
3285 | ||
35df4500 | 3286 | if (bl->inserted) |
c5aa993b | 3287 | { |
35df4500 | 3288 | bl->inserted = 0; |
dd61ec5c | 3289 | val = insert_bp_location (bl, tmp_error_stream, &dummy1, &dummy2, &dummy3); |
c5aa993b JM |
3290 | if (val != 0) |
3291 | { | |
ce696e05 | 3292 | do_cleanups (old_chain); |
c5aa993b JM |
3293 | return val; |
3294 | } | |
3295 | } | |
3296 | } | |
ce696e05 | 3297 | do_cleanups (old_chain); |
c906108c SS |
3298 | return 0; |
3299 | } | |
3300 | ||
e58b0e63 PA |
3301 | static int internal_breakpoint_number = -1; |
3302 | ||
84f4c1fe PM |
3303 | /* Set the breakpoint number of B, depending on the value of INTERNAL. |
3304 | If INTERNAL is non-zero, the breakpoint number will be populated | |
3305 | from internal_breakpoint_number and that variable decremented. | |
e5dd4106 | 3306 | Otherwise the breakpoint number will be populated from |
84f4c1fe PM |
3307 | breakpoint_count and that value incremented. Internal breakpoints |
3308 | do not set the internal var bpnum. */ | |
3309 | static void | |
3310 | set_breakpoint_number (int internal, struct breakpoint *b) | |
3311 | { | |
3312 | if (internal) | |
3313 | b->number = internal_breakpoint_number--; | |
3314 | else | |
3315 | { | |
3316 | set_breakpoint_count (breakpoint_count + 1); | |
3317 | b->number = breakpoint_count; | |
3318 | } | |
3319 | } | |
3320 | ||
e62c965a | 3321 | static struct breakpoint * |
a6d9a66e | 3322 | create_internal_breakpoint (struct gdbarch *gdbarch, |
06edf0c0 | 3323 | CORE_ADDR address, enum bptype type, |
c0a91b2b | 3324 | const struct breakpoint_ops *ops) |
e62c965a | 3325 | { |
e62c965a PP |
3326 | struct symtab_and_line sal; |
3327 | struct breakpoint *b; | |
3328 | ||
4a64f543 | 3329 | init_sal (&sal); /* Initialize to zeroes. */ |
e62c965a PP |
3330 | |
3331 | sal.pc = address; | |
3332 | sal.section = find_pc_overlay (sal.pc); | |
6c95b8df | 3333 | sal.pspace = current_program_space; |
e62c965a | 3334 | |
06edf0c0 | 3335 | b = set_raw_breakpoint (gdbarch, sal, type, ops); |
e62c965a PP |
3336 | b->number = internal_breakpoint_number--; |
3337 | b->disposition = disp_donttouch; | |
3338 | ||
3339 | return b; | |
3340 | } | |
3341 | ||
17450429 PP |
3342 | static const char *const longjmp_names[] = |
3343 | { | |
3344 | "longjmp", "_longjmp", "siglongjmp", "_siglongjmp" | |
3345 | }; | |
3346 | #define NUM_LONGJMP_NAMES ARRAY_SIZE(longjmp_names) | |
3347 | ||
3348 | /* Per-objfile data private to breakpoint.c. */ | |
3349 | struct breakpoint_objfile_data | |
3350 | { | |
3351 | /* Minimal symbol for "_ovly_debug_event" (if any). */ | |
3b7344d5 | 3352 | struct bound_minimal_symbol overlay_msym; |
17450429 PP |
3353 | |
3354 | /* Minimal symbol(s) for "longjmp", "siglongjmp", etc. (if any). */ | |
3b7344d5 | 3355 | struct bound_minimal_symbol longjmp_msym[NUM_LONGJMP_NAMES]; |
17450429 | 3356 | |
28106bc2 SDJ |
3357 | /* True if we have looked for longjmp probes. */ |
3358 | int longjmp_searched; | |
3359 | ||
3360 | /* SystemTap probe points for longjmp (if any). */ | |
3361 | VEC (probe_p) *longjmp_probes; | |
3362 | ||
17450429 | 3363 | /* Minimal symbol for "std::terminate()" (if any). */ |
3b7344d5 | 3364 | struct bound_minimal_symbol terminate_msym; |
17450429 PP |
3365 | |
3366 | /* Minimal symbol for "_Unwind_DebugHook" (if any). */ | |
3b7344d5 | 3367 | struct bound_minimal_symbol exception_msym; |
28106bc2 SDJ |
3368 | |
3369 | /* True if we have looked for exception probes. */ | |
3370 | int exception_searched; | |
3371 | ||
3372 | /* SystemTap probe points for unwinding (if any). */ | |
3373 | VEC (probe_p) *exception_probes; | |
17450429 PP |
3374 | }; |
3375 | ||
3376 | static const struct objfile_data *breakpoint_objfile_key; | |
3377 | ||
3378 | /* Minimal symbol not found sentinel. */ | |
3379 | static struct minimal_symbol msym_not_found; | |
3380 | ||
3381 | /* Returns TRUE if MSYM point to the "not found" sentinel. */ | |
3382 | ||
3383 | static int | |
3384 | msym_not_found_p (const struct minimal_symbol *msym) | |
3385 | { | |
3386 | return msym == &msym_not_found; | |
3387 | } | |
3388 | ||
3389 | /* Return per-objfile data needed by breakpoint.c. | |
3390 | Allocate the data if necessary. */ | |
3391 | ||
3392 | static struct breakpoint_objfile_data * | |
3393 | get_breakpoint_objfile_data (struct objfile *objfile) | |
3394 | { | |
3395 | struct breakpoint_objfile_data *bp_objfile_data; | |
3396 | ||
9a3c8263 SM |
3397 | bp_objfile_data = ((struct breakpoint_objfile_data *) |
3398 | objfile_data (objfile, breakpoint_objfile_key)); | |
17450429 PP |
3399 | if (bp_objfile_data == NULL) |
3400 | { | |
8d749320 SM |
3401 | bp_objfile_data = |
3402 | XOBNEW (&objfile->objfile_obstack, struct breakpoint_objfile_data); | |
17450429 PP |
3403 | |
3404 | memset (bp_objfile_data, 0, sizeof (*bp_objfile_data)); | |
3405 | set_objfile_data (objfile, breakpoint_objfile_key, bp_objfile_data); | |
3406 | } | |
3407 | return bp_objfile_data; | |
3408 | } | |
3409 | ||
28106bc2 SDJ |
3410 | static void |
3411 | free_breakpoint_probes (struct objfile *obj, void *data) | |
3412 | { | |
9a3c8263 SM |
3413 | struct breakpoint_objfile_data *bp_objfile_data |
3414 | = (struct breakpoint_objfile_data *) data; | |
28106bc2 SDJ |
3415 | |
3416 | VEC_free (probe_p, bp_objfile_data->longjmp_probes); | |
3417 | VEC_free (probe_p, bp_objfile_data->exception_probes); | |
3418 | } | |
3419 | ||
e62c965a | 3420 | static void |
af02033e | 3421 | create_overlay_event_breakpoint (void) |
e62c965a | 3422 | { |
69de3c6a | 3423 | struct objfile *objfile; |
af02033e | 3424 | const char *const func_name = "_ovly_debug_event"; |
e62c965a | 3425 | |
69de3c6a PP |
3426 | ALL_OBJFILES (objfile) |
3427 | { | |
3428 | struct breakpoint *b; | |
17450429 PP |
3429 | struct breakpoint_objfile_data *bp_objfile_data; |
3430 | CORE_ADDR addr; | |
67994074 | 3431 | struct explicit_location explicit_loc; |
69de3c6a | 3432 | |
17450429 PP |
3433 | bp_objfile_data = get_breakpoint_objfile_data (objfile); |
3434 | ||
3b7344d5 | 3435 | if (msym_not_found_p (bp_objfile_data->overlay_msym.minsym)) |
17450429 PP |
3436 | continue; |
3437 | ||
3b7344d5 | 3438 | if (bp_objfile_data->overlay_msym.minsym == NULL) |
17450429 | 3439 | { |
3b7344d5 | 3440 | struct bound_minimal_symbol m; |
17450429 PP |
3441 | |
3442 | m = lookup_minimal_symbol_text (func_name, objfile); | |
3b7344d5 | 3443 | if (m.minsym == NULL) |
17450429 PP |
3444 | { |
3445 | /* Avoid future lookups in this objfile. */ | |
3b7344d5 | 3446 | bp_objfile_data->overlay_msym.minsym = &msym_not_found; |
17450429 PP |
3447 | continue; |
3448 | } | |
3449 | bp_objfile_data->overlay_msym = m; | |
3450 | } | |
e62c965a | 3451 | |
77e371c0 | 3452 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->overlay_msym); |
17450429 | 3453 | b = create_internal_breakpoint (get_objfile_arch (objfile), addr, |
06edf0c0 PA |
3454 | bp_overlay_event, |
3455 | &internal_breakpoint_ops); | |
67994074 KS |
3456 | initialize_explicit_location (&explicit_loc); |
3457 | explicit_loc.function_name = ASTRDUP (func_name); | |
3458 | b->location = new_explicit_location (&explicit_loc); | |
e62c965a | 3459 | |
69de3c6a PP |
3460 | if (overlay_debugging == ovly_auto) |
3461 | { | |
3462 | b->enable_state = bp_enabled; | |
3463 | overlay_events_enabled = 1; | |
3464 | } | |
3465 | else | |
3466 | { | |
3467 | b->enable_state = bp_disabled; | |
3468 | overlay_events_enabled = 0; | |
3469 | } | |
e62c965a | 3470 | } |
44702360 | 3471 | update_global_location_list (UGLL_MAY_INSERT); |
e62c965a PP |
3472 | } |
3473 | ||
0fd8e87f | 3474 | static void |
af02033e | 3475 | create_longjmp_master_breakpoint (void) |
0fd8e87f | 3476 | { |
6c95b8df | 3477 | struct program_space *pspace; |
6c95b8df PA |
3478 | struct cleanup *old_chain; |
3479 | ||
3480 | old_chain = save_current_program_space (); | |
0fd8e87f | 3481 | |
6c95b8df | 3482 | ALL_PSPACES (pspace) |
af02033e PP |
3483 | { |
3484 | struct objfile *objfile; | |
3485 | ||
3486 | set_current_program_space (pspace); | |
3487 | ||
3488 | ALL_OBJFILES (objfile) | |
0fd8e87f | 3489 | { |
af02033e PP |
3490 | int i; |
3491 | struct gdbarch *gdbarch; | |
17450429 | 3492 | struct breakpoint_objfile_data *bp_objfile_data; |
0fd8e87f | 3493 | |
af02033e | 3494 | gdbarch = get_objfile_arch (objfile); |
0fd8e87f | 3495 | |
17450429 PP |
3496 | bp_objfile_data = get_breakpoint_objfile_data (objfile); |
3497 | ||
28106bc2 SDJ |
3498 | if (!bp_objfile_data->longjmp_searched) |
3499 | { | |
25f9533e SDJ |
3500 | VEC (probe_p) *ret; |
3501 | ||
3502 | ret = find_probes_in_objfile (objfile, "libc", "longjmp"); | |
3503 | if (ret != NULL) | |
3504 | { | |
3505 | /* We are only interested in checking one element. */ | |
3506 | struct probe *p = VEC_index (probe_p, ret, 0); | |
3507 | ||
3508 | if (!can_evaluate_probe_arguments (p)) | |
3509 | { | |
3510 | /* We cannot use the probe interface here, because it does | |
3511 | not know how to evaluate arguments. */ | |
3512 | VEC_free (probe_p, ret); | |
3513 | ret = NULL; | |
3514 | } | |
3515 | } | |
3516 | bp_objfile_data->longjmp_probes = ret; | |
28106bc2 SDJ |
3517 | bp_objfile_data->longjmp_searched = 1; |
3518 | } | |
3519 | ||
3520 | if (bp_objfile_data->longjmp_probes != NULL) | |
3521 | { | |
3522 | int i; | |
3523 | struct probe *probe; | |
3524 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
3525 | ||
3526 | for (i = 0; | |
3527 | VEC_iterate (probe_p, | |
3528 | bp_objfile_data->longjmp_probes, | |
3529 | i, probe); | |
3530 | ++i) | |
3531 | { | |
3532 | struct breakpoint *b; | |
3533 | ||
729662a5 TT |
3534 | b = create_internal_breakpoint (gdbarch, |
3535 | get_probe_address (probe, | |
3536 | objfile), | |
28106bc2 SDJ |
3537 | bp_longjmp_master, |
3538 | &internal_breakpoint_ops); | |
5b56227b KS |
3539 | b->location |
3540 | = new_probe_location ("-probe-stap libc:longjmp"); | |
28106bc2 SDJ |
3541 | b->enable_state = bp_disabled; |
3542 | } | |
3543 | ||
3544 | continue; | |
3545 | } | |
3546 | ||
0569175e TSD |
3547 | if (!gdbarch_get_longjmp_target_p (gdbarch)) |
3548 | continue; | |
3549 | ||
17450429 | 3550 | for (i = 0; i < NUM_LONGJMP_NAMES; i++) |
af02033e PP |
3551 | { |
3552 | struct breakpoint *b; | |
af02033e | 3553 | const char *func_name; |
17450429 | 3554 | CORE_ADDR addr; |
67994074 | 3555 | struct explicit_location explicit_loc; |
6c95b8df | 3556 | |
3b7344d5 | 3557 | if (msym_not_found_p (bp_objfile_data->longjmp_msym[i].minsym)) |
af02033e | 3558 | continue; |
0fd8e87f | 3559 | |
17450429 | 3560 | func_name = longjmp_names[i]; |
3b7344d5 | 3561 | if (bp_objfile_data->longjmp_msym[i].minsym == NULL) |
17450429 | 3562 | { |
3b7344d5 | 3563 | struct bound_minimal_symbol m; |
17450429 PP |
3564 | |
3565 | m = lookup_minimal_symbol_text (func_name, objfile); | |
3b7344d5 | 3566 | if (m.minsym == NULL) |
17450429 PP |
3567 | { |
3568 | /* Prevent future lookups in this objfile. */ | |
3b7344d5 | 3569 | bp_objfile_data->longjmp_msym[i].minsym = &msym_not_found; |
17450429 PP |
3570 | continue; |
3571 | } | |
3572 | bp_objfile_data->longjmp_msym[i] = m; | |
3573 | } | |
3574 | ||
77e371c0 | 3575 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->longjmp_msym[i]); |
06edf0c0 PA |
3576 | b = create_internal_breakpoint (gdbarch, addr, bp_longjmp_master, |
3577 | &internal_breakpoint_ops); | |
67994074 KS |
3578 | initialize_explicit_location (&explicit_loc); |
3579 | explicit_loc.function_name = ASTRDUP (func_name); | |
3580 | b->location = new_explicit_location (&explicit_loc); | |
af02033e PP |
3581 | b->enable_state = bp_disabled; |
3582 | } | |
0fd8e87f | 3583 | } |
af02033e | 3584 | } |
44702360 | 3585 | update_global_location_list (UGLL_MAY_INSERT); |
6c95b8df PA |
3586 | |
3587 | do_cleanups (old_chain); | |
0fd8e87f UW |
3588 | } |
3589 | ||
af02033e | 3590 | /* Create a master std::terminate breakpoint. */ |
aa7d318d | 3591 | static void |
af02033e | 3592 | create_std_terminate_master_breakpoint (void) |
aa7d318d TT |
3593 | { |
3594 | struct program_space *pspace; | |
aa7d318d | 3595 | struct cleanup *old_chain; |
af02033e | 3596 | const char *const func_name = "std::terminate()"; |
aa7d318d TT |
3597 | |
3598 | old_chain = save_current_program_space (); | |
3599 | ||
3600 | ALL_PSPACES (pspace) | |
17450429 PP |
3601 | { |
3602 | struct objfile *objfile; | |
3603 | CORE_ADDR addr; | |
3604 | ||
3605 | set_current_program_space (pspace); | |
3606 | ||
aa7d318d TT |
3607 | ALL_OBJFILES (objfile) |
3608 | { | |
3609 | struct breakpoint *b; | |
17450429 | 3610 | struct breakpoint_objfile_data *bp_objfile_data; |
67994074 | 3611 | struct explicit_location explicit_loc; |
aa7d318d | 3612 | |
17450429 | 3613 | bp_objfile_data = get_breakpoint_objfile_data (objfile); |
aa7d318d | 3614 | |
3b7344d5 | 3615 | if (msym_not_found_p (bp_objfile_data->terminate_msym.minsym)) |
17450429 PP |
3616 | continue; |
3617 | ||
3b7344d5 | 3618 | if (bp_objfile_data->terminate_msym.minsym == NULL) |
17450429 | 3619 | { |
3b7344d5 | 3620 | struct bound_minimal_symbol m; |
17450429 PP |
3621 | |
3622 | m = lookup_minimal_symbol (func_name, NULL, objfile); | |
3b7344d5 TT |
3623 | if (m.minsym == NULL || (MSYMBOL_TYPE (m.minsym) != mst_text |
3624 | && MSYMBOL_TYPE (m.minsym) != mst_file_text)) | |
17450429 PP |
3625 | { |
3626 | /* Prevent future lookups in this objfile. */ | |
3b7344d5 | 3627 | bp_objfile_data->terminate_msym.minsym = &msym_not_found; |
17450429 PP |
3628 | continue; |
3629 | } | |
3630 | bp_objfile_data->terminate_msym = m; | |
3631 | } | |
aa7d318d | 3632 | |
77e371c0 | 3633 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->terminate_msym); |
17450429 | 3634 | b = create_internal_breakpoint (get_objfile_arch (objfile), addr, |
06edf0c0 PA |
3635 | bp_std_terminate_master, |
3636 | &internal_breakpoint_ops); | |
67994074 KS |
3637 | initialize_explicit_location (&explicit_loc); |
3638 | explicit_loc.function_name = ASTRDUP (func_name); | |
3639 | b->location = new_explicit_location (&explicit_loc); | |
aa7d318d TT |
3640 | b->enable_state = bp_disabled; |
3641 | } | |
17450429 PP |
3642 | } |
3643 | ||
44702360 | 3644 | update_global_location_list (UGLL_MAY_INSERT); |
aa7d318d TT |
3645 | |
3646 | do_cleanups (old_chain); | |
3647 | } | |
3648 | ||
186c406b TT |
3649 | /* Install a master breakpoint on the unwinder's debug hook. */ |
3650 | ||
70221824 | 3651 | static void |
186c406b TT |
3652 | create_exception_master_breakpoint (void) |
3653 | { | |
3654 | struct objfile *objfile; | |
17450429 | 3655 | const char *const func_name = "_Unwind_DebugHook"; |
186c406b TT |
3656 | |
3657 | ALL_OBJFILES (objfile) | |
3658 | { | |
17450429 PP |
3659 | struct breakpoint *b; |
3660 | struct gdbarch *gdbarch; | |
3661 | struct breakpoint_objfile_data *bp_objfile_data; | |
3662 | CORE_ADDR addr; | |
67994074 | 3663 | struct explicit_location explicit_loc; |
17450429 PP |
3664 | |
3665 | bp_objfile_data = get_breakpoint_objfile_data (objfile); | |
3666 | ||
28106bc2 SDJ |
3667 | /* We prefer the SystemTap probe point if it exists. */ |
3668 | if (!bp_objfile_data->exception_searched) | |
3669 | { | |
25f9533e SDJ |
3670 | VEC (probe_p) *ret; |
3671 | ||
3672 | ret = find_probes_in_objfile (objfile, "libgcc", "unwind"); | |
3673 | ||
3674 | if (ret != NULL) | |
3675 | { | |
3676 | /* We are only interested in checking one element. */ | |
3677 | struct probe *p = VEC_index (probe_p, ret, 0); | |
3678 | ||
3679 | if (!can_evaluate_probe_arguments (p)) | |
3680 | { | |
3681 | /* We cannot use the probe interface here, because it does | |
3682 | not know how to evaluate arguments. */ | |
3683 | VEC_free (probe_p, ret); | |
3684 | ret = NULL; | |
3685 | } | |
3686 | } | |
3687 | bp_objfile_data->exception_probes = ret; | |
28106bc2 SDJ |
3688 | bp_objfile_data->exception_searched = 1; |
3689 | } | |
3690 | ||
3691 | if (bp_objfile_data->exception_probes != NULL) | |
3692 | { | |
3693 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
3694 | int i; | |
3695 | struct probe *probe; | |
3696 | ||
3697 | for (i = 0; | |
3698 | VEC_iterate (probe_p, | |
3699 | bp_objfile_data->exception_probes, | |
3700 | i, probe); | |
3701 | ++i) | |
3702 | { | |
3703 | struct breakpoint *b; | |
3704 | ||
729662a5 TT |
3705 | b = create_internal_breakpoint (gdbarch, |
3706 | get_probe_address (probe, | |
3707 | objfile), | |
28106bc2 SDJ |
3708 | bp_exception_master, |
3709 | &internal_breakpoint_ops); | |
5b56227b KS |
3710 | b->location |
3711 | = new_probe_location ("-probe-stap libgcc:unwind"); | |
28106bc2 SDJ |
3712 | b->enable_state = bp_disabled; |
3713 | } | |
3714 | ||
3715 | continue; | |
3716 | } | |
3717 | ||
3718 | /* Otherwise, try the hook function. */ | |
3719 | ||
3b7344d5 | 3720 | if (msym_not_found_p (bp_objfile_data->exception_msym.minsym)) |
17450429 PP |
3721 | continue; |
3722 | ||
3723 | gdbarch = get_objfile_arch (objfile); | |
186c406b | 3724 | |
3b7344d5 | 3725 | if (bp_objfile_data->exception_msym.minsym == NULL) |
186c406b | 3726 | { |
3b7344d5 | 3727 | struct bound_minimal_symbol debug_hook; |
186c406b | 3728 | |
17450429 | 3729 | debug_hook = lookup_minimal_symbol (func_name, NULL, objfile); |
3b7344d5 | 3730 | if (debug_hook.minsym == NULL) |
17450429 | 3731 | { |
3b7344d5 | 3732 | bp_objfile_data->exception_msym.minsym = &msym_not_found; |
17450429 PP |
3733 | continue; |
3734 | } | |
3735 | ||
3736 | bp_objfile_data->exception_msym = debug_hook; | |
186c406b | 3737 | } |
17450429 | 3738 | |
77e371c0 | 3739 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->exception_msym); |
17450429 PP |
3740 | addr = gdbarch_convert_from_func_ptr_addr (gdbarch, addr, |
3741 | ¤t_target); | |
06edf0c0 PA |
3742 | b = create_internal_breakpoint (gdbarch, addr, bp_exception_master, |
3743 | &internal_breakpoint_ops); | |
67994074 KS |
3744 | initialize_explicit_location (&explicit_loc); |
3745 | explicit_loc.function_name = ASTRDUP (func_name); | |
3746 | b->location = new_explicit_location (&explicit_loc); | |
17450429 | 3747 | b->enable_state = bp_disabled; |
186c406b TT |
3748 | } |
3749 | ||
44702360 | 3750 | update_global_location_list (UGLL_MAY_INSERT); |
186c406b TT |
3751 | } |
3752 | ||
c906108c | 3753 | void |
fba45db2 | 3754 | update_breakpoints_after_exec (void) |
c906108c | 3755 | { |
35df4500 | 3756 | struct breakpoint *b, *b_tmp; |
876fa593 | 3757 | struct bp_location *bploc, **bplocp_tmp; |
c906108c | 3758 | |
25b22b0a PA |
3759 | /* We're about to delete breakpoints from GDB's lists. If the |
3760 | INSERTED flag is true, GDB will try to lift the breakpoints by | |
3761 | writing the breakpoints' "shadow contents" back into memory. The | |
3762 | "shadow contents" are NOT valid after an exec, so GDB should not | |
3763 | do that. Instead, the target is responsible from marking | |
3764 | breakpoints out as soon as it detects an exec. We don't do that | |
3765 | here instead, because there may be other attempts to delete | |
3766 | breakpoints after detecting an exec and before reaching here. */ | |
876fa593 | 3767 | ALL_BP_LOCATIONS (bploc, bplocp_tmp) |
6c95b8df PA |
3768 | if (bploc->pspace == current_program_space) |
3769 | gdb_assert (!bploc->inserted); | |
c906108c | 3770 | |
35df4500 | 3771 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 3772 | { |
6c95b8df PA |
3773 | if (b->pspace != current_program_space) |
3774 | continue; | |
3775 | ||
4a64f543 | 3776 | /* Solib breakpoints must be explicitly reset after an exec(). */ |
c5aa993b JM |
3777 | if (b->type == bp_shlib_event) |
3778 | { | |
3779 | delete_breakpoint (b); | |
3780 | continue; | |
3781 | } | |
c906108c | 3782 | |
4a64f543 | 3783 | /* JIT breakpoints must be explicitly reset after an exec(). */ |
4efc6507 DE |
3784 | if (b->type == bp_jit_event) |
3785 | { | |
3786 | delete_breakpoint (b); | |
3787 | continue; | |
3788 | } | |
3789 | ||
1900040c | 3790 | /* Thread event breakpoints must be set anew after an exec(), |
0fd8e87f UW |
3791 | as must overlay event and longjmp master breakpoints. */ |
3792 | if (b->type == bp_thread_event || b->type == bp_overlay_event | |
186c406b TT |
3793 | || b->type == bp_longjmp_master || b->type == bp_std_terminate_master |
3794 | || b->type == bp_exception_master) | |
c4093a6a JM |
3795 | { |
3796 | delete_breakpoint (b); | |
3797 | continue; | |
3798 | } | |
3799 | ||
4a64f543 | 3800 | /* Step-resume breakpoints are meaningless after an exec(). */ |
2c03e5be | 3801 | if (b->type == bp_step_resume || b->type == bp_hp_step_resume) |
c5aa993b JM |
3802 | { |
3803 | delete_breakpoint (b); | |
3804 | continue; | |
3805 | } | |
3806 | ||
7c16b83e PA |
3807 | /* Just like single-step breakpoints. */ |
3808 | if (b->type == bp_single_step) | |
3809 | { | |
3810 | delete_breakpoint (b); | |
3811 | continue; | |
3812 | } | |
3813 | ||
611c83ae PA |
3814 | /* Longjmp and longjmp-resume breakpoints are also meaningless |
3815 | after an exec. */ | |
186c406b | 3816 | if (b->type == bp_longjmp || b->type == bp_longjmp_resume |
e2e4d78b | 3817 | || b->type == bp_longjmp_call_dummy |
186c406b | 3818 | || b->type == bp_exception || b->type == bp_exception_resume) |
611c83ae PA |
3819 | { |
3820 | delete_breakpoint (b); | |
3821 | continue; | |
3822 | } | |
3823 | ||
ce78b96d JB |
3824 | if (b->type == bp_catchpoint) |
3825 | { | |
3826 | /* For now, none of the bp_catchpoint breakpoints need to | |
3827 | do anything at this point. In the future, if some of | |
3828 | the catchpoints need to something, we will need to add | |
3829 | a new method, and call this method from here. */ | |
3830 | continue; | |
3831 | } | |
3832 | ||
c5aa993b JM |
3833 | /* bp_finish is a special case. The only way we ought to be able |
3834 | to see one of these when an exec() has happened, is if the user | |
3835 | caught a vfork, and then said "finish". Ordinarily a finish just | |
3836 | carries them to the call-site of the current callee, by setting | |
3837 | a temporary bp there and resuming. But in this case, the finish | |
3838 | will carry them entirely through the vfork & exec. | |
3839 | ||
3840 | We don't want to allow a bp_finish to remain inserted now. But | |
3841 | we can't safely delete it, 'cause finish_command has a handle to | |
3842 | the bp on a bpstat, and will later want to delete it. There's a | |
3843 | chance (and I've seen it happen) that if we delete the bp_finish | |
3844 | here, that its storage will get reused by the time finish_command | |
3845 | gets 'round to deleting the "use to be a bp_finish" breakpoint. | |
3846 | We really must allow finish_command to delete a bp_finish. | |
3847 | ||
e5dd4106 | 3848 | In the absence of a general solution for the "how do we know |
53a5351d JM |
3849 | it's safe to delete something others may have handles to?" |
3850 | problem, what we'll do here is just uninsert the bp_finish, and | |
3851 | let finish_command delete it. | |
3852 | ||
3853 | (We know the bp_finish is "doomed" in the sense that it's | |
3854 | momentary, and will be deleted as soon as finish_command sees | |
3855 | the inferior stopped. So it doesn't matter that the bp's | |
3856 | address is probably bogus in the new a.out, unlike e.g., the | |
3857 | solib breakpoints.) */ | |
c5aa993b | 3858 | |
c5aa993b JM |
3859 | if (b->type == bp_finish) |
3860 | { | |
3861 | continue; | |
3862 | } | |
3863 | ||
3864 | /* Without a symbolic address, we have little hope of the | |
3865 | pre-exec() address meaning the same thing in the post-exec() | |
4a64f543 | 3866 | a.out. */ |
f00aae0f | 3867 | if (event_location_empty_p (b->location)) |
c5aa993b JM |
3868 | { |
3869 | delete_breakpoint (b); | |
3870 | continue; | |
3871 | } | |
c5aa993b | 3872 | } |
c906108c SS |
3873 | } |
3874 | ||
3875 | int | |
d80ee84f | 3876 | detach_breakpoints (ptid_t ptid) |
c906108c | 3877 | { |
35df4500 | 3878 | struct bp_location *bl, **blp_tmp; |
3a1bae8e | 3879 | int val = 0; |
ce696e05 | 3880 | struct cleanup *old_chain = save_inferior_ptid (); |
6c95b8df | 3881 | struct inferior *inf = current_inferior (); |
c5aa993b | 3882 | |
dfd4cc63 | 3883 | if (ptid_get_pid (ptid) == ptid_get_pid (inferior_ptid)) |
8a3fe4f8 | 3884 | error (_("Cannot detach breakpoints of inferior_ptid")); |
c5aa993b | 3885 | |
6c95b8df | 3886 | /* Set inferior_ptid; remove_breakpoint_1 uses this global. */ |
d80ee84f | 3887 | inferior_ptid = ptid; |
35df4500 | 3888 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 3889 | { |
35df4500 | 3890 | if (bl->pspace != inf->pspace) |
6c95b8df PA |
3891 | continue; |
3892 | ||
bd9673a4 PW |
3893 | /* This function must physically remove breakpoints locations |
3894 | from the specified ptid, without modifying the breakpoint | |
3895 | package's state. Locations of type bp_loc_other are only | |
3896 | maintained at GDB side. So, there is no need to remove | |
3897 | these bp_loc_other locations. Moreover, removing these | |
3898 | would modify the breakpoint package's state. */ | |
3899 | if (bl->loc_type == bp_loc_other) | |
3900 | continue; | |
3901 | ||
35df4500 TJB |
3902 | if (bl->inserted) |
3903 | val |= remove_breakpoint_1 (bl, mark_inserted); | |
c5aa993b | 3904 | } |
d03285ec | 3905 | |
ce696e05 | 3906 | do_cleanups (old_chain); |
3a1bae8e | 3907 | return val; |
c906108c SS |
3908 | } |
3909 | ||
35df4500 | 3910 | /* Remove the breakpoint location BL from the current address space. |
6c95b8df PA |
3911 | Note that this is used to detach breakpoints from a child fork. |
3912 | When we get here, the child isn't in the inferior list, and neither | |
3913 | do we have objects to represent its address space --- we should | |
35df4500 | 3914 | *not* look at bl->pspace->aspace here. */ |
6c95b8df | 3915 | |
c906108c | 3916 | static int |
35df4500 | 3917 | remove_breakpoint_1 (struct bp_location *bl, insertion_state_t is) |
c906108c SS |
3918 | { |
3919 | int val; | |
c5aa993b | 3920 | |
35df4500 TJB |
3921 | /* BL is never in moribund_locations by our callers. */ |
3922 | gdb_assert (bl->owner != NULL); | |
2bdf28a0 | 3923 | |
74960c60 VP |
3924 | /* The type of none suggests that owner is actually deleted. |
3925 | This should not ever happen. */ | |
35df4500 | 3926 | gdb_assert (bl->owner->type != bp_none); |
0bde7532 | 3927 | |
35df4500 TJB |
3928 | if (bl->loc_type == bp_loc_software_breakpoint |
3929 | || bl->loc_type == bp_loc_hardware_breakpoint) | |
c906108c | 3930 | { |
c02f5703 MS |
3931 | /* "Normal" instruction breakpoint: either the standard |
3932 | trap-instruction bp (bp_breakpoint), or a | |
3933 | bp_hardware_breakpoint. */ | |
3934 | ||
3935 | /* First check to see if we have to handle an overlay. */ | |
3936 | if (overlay_debugging == ovly_off | |
35df4500 TJB |
3937 | || bl->section == NULL |
3938 | || !(section_is_overlay (bl->section))) | |
c02f5703 MS |
3939 | { |
3940 | /* No overlay handling: just remove the breakpoint. */ | |
08351840 PA |
3941 | |
3942 | /* If we're trying to uninsert a memory breakpoint that we | |
3943 | know is set in a dynamic object that is marked | |
3944 | shlib_disabled, then either the dynamic object was | |
3945 | removed with "remove-symbol-file" or with | |
3946 | "nosharedlibrary". In the former case, we don't know | |
3947 | whether another dynamic object might have loaded over the | |
3948 | breakpoint's address -- the user might well let us know | |
3949 | about it next with add-symbol-file (the whole point of | |
d03de421 | 3950 | add-symbol-file is letting the user manually maintain a |
08351840 PA |
3951 | list of dynamically loaded objects). If we have the |
3952 | breakpoint's shadow memory, that is, this is a software | |
3953 | breakpoint managed by GDB, check whether the breakpoint | |
3954 | is still inserted in memory, to avoid overwriting wrong | |
3955 | code with stale saved shadow contents. Note that HW | |
3956 | breakpoints don't have shadow memory, as they're | |
3957 | implemented using a mechanism that is not dependent on | |
3958 | being able to modify the target's memory, and as such | |
3959 | they should always be removed. */ | |
3960 | if (bl->shlib_disabled | |
3961 | && bl->target_info.shadow_len != 0 | |
3962 | && !memory_validate_breakpoint (bl->gdbarch, &bl->target_info)) | |
3963 | val = 0; | |
3964 | else | |
3965 | val = bl->owner->ops->remove_location (bl); | |
c02f5703 | 3966 | } |
c906108c SS |
3967 | else |
3968 | { | |
4a64f543 | 3969 | /* This breakpoint is in an overlay section. |
c02f5703 MS |
3970 | Did we set a breakpoint at the LMA? */ |
3971 | if (!overlay_events_enabled) | |
3972 | { | |
3973 | /* Yes -- overlay event support is not active, so we | |
3974 | should have set a breakpoint at the LMA. Remove it. | |
3975 | */ | |
c02f5703 MS |
3976 | /* Ignore any failures: if the LMA is in ROM, we will |
3977 | have already warned when we failed to insert it. */ | |
35df4500 TJB |
3978 | if (bl->loc_type == bp_loc_hardware_breakpoint) |
3979 | target_remove_hw_breakpoint (bl->gdbarch, | |
3980 | &bl->overlay_target_info); | |
c02f5703 | 3981 | else |
35df4500 TJB |
3982 | target_remove_breakpoint (bl->gdbarch, |
3983 | &bl->overlay_target_info); | |
c02f5703 MS |
3984 | } |
3985 | /* Did we set a breakpoint at the VMA? | |
3986 | If so, we will have marked the breakpoint 'inserted'. */ | |
35df4500 | 3987 | if (bl->inserted) |
c906108c | 3988 | { |
c02f5703 MS |
3989 | /* Yes -- remove it. Previously we did not bother to |
3990 | remove the breakpoint if the section had been | |
3991 | unmapped, but let's not rely on that being safe. We | |
3992 | don't know what the overlay manager might do. */ | |
aa67235e UW |
3993 | |
3994 | /* However, we should remove *software* breakpoints only | |
3995 | if the section is still mapped, or else we overwrite | |
3996 | wrong code with the saved shadow contents. */ | |
348d480f PA |
3997 | if (bl->loc_type == bp_loc_hardware_breakpoint |
3998 | || section_is_mapped (bl->section)) | |
3999 | val = bl->owner->ops->remove_location (bl); | |
aa67235e UW |
4000 | else |
4001 | val = 0; | |
c906108c | 4002 | } |
c02f5703 MS |
4003 | else |
4004 | { | |
4005 | /* No -- not inserted, so no need to remove. No error. */ | |
4006 | val = 0; | |
4007 | } | |
c906108c | 4008 | } |
879d1e6b | 4009 | |
08351840 PA |
4010 | /* In some cases, we might not be able to remove a breakpoint in |
4011 | a shared library that has already been removed, but we have | |
4012 | not yet processed the shlib unload event. Similarly for an | |
4013 | unloaded add-symbol-file object - the user might not yet have | |
4014 | had the chance to remove-symbol-file it. shlib_disabled will | |
4015 | be set if the library/object has already been removed, but | |
4016 | the breakpoint hasn't been uninserted yet, e.g., after | |
4017 | "nosharedlibrary" or "remove-symbol-file" with breakpoints | |
4018 | always-inserted mode. */ | |
076855f9 | 4019 | if (val |
08351840 PA |
4020 | && (bl->loc_type == bp_loc_software_breakpoint |
4021 | && (bl->shlib_disabled | |
4022 | || solib_name_from_address (bl->pspace, bl->address) | |
d03de421 PA |
4023 | || shared_objfile_contains_address_p (bl->pspace, |
4024 | bl->address)))) | |
879d1e6b UW |
4025 | val = 0; |
4026 | ||
c906108c SS |
4027 | if (val) |
4028 | return val; | |
35df4500 | 4029 | bl->inserted = (is == mark_inserted); |
c906108c | 4030 | } |
35df4500 | 4031 | else if (bl->loc_type == bp_loc_hardware_watchpoint) |
c906108c | 4032 | { |
77b06cd7 TJB |
4033 | gdb_assert (bl->owner->ops != NULL |
4034 | && bl->owner->ops->remove_location != NULL); | |
4035 | ||
35df4500 | 4036 | bl->inserted = (is == mark_inserted); |
77b06cd7 | 4037 | bl->owner->ops->remove_location (bl); |
2e70b7b9 | 4038 | |
c906108c | 4039 | /* Failure to remove any of the hardware watchpoints comes here. */ |
35df4500 | 4040 | if ((is == mark_uninserted) && (bl->inserted)) |
8a3fe4f8 | 4041 | warning (_("Could not remove hardware watchpoint %d."), |
35df4500 | 4042 | bl->owner->number); |
c906108c | 4043 | } |
35df4500 TJB |
4044 | else if (bl->owner->type == bp_catchpoint |
4045 | && breakpoint_enabled (bl->owner) | |
4046 | && !bl->duplicate) | |
ce78b96d | 4047 | { |
77b06cd7 TJB |
4048 | gdb_assert (bl->owner->ops != NULL |
4049 | && bl->owner->ops->remove_location != NULL); | |
ce78b96d | 4050 | |
77b06cd7 | 4051 | val = bl->owner->ops->remove_location (bl); |
ce78b96d JB |
4052 | if (val) |
4053 | return val; | |
77b06cd7 | 4054 | |
35df4500 | 4055 | bl->inserted = (is == mark_inserted); |
ce78b96d | 4056 | } |
c906108c SS |
4057 | |
4058 | return 0; | |
4059 | } | |
4060 | ||
6c95b8df | 4061 | static int |
35df4500 | 4062 | remove_breakpoint (struct bp_location *bl, insertion_state_t is) |
6c95b8df PA |
4063 | { |
4064 | int ret; | |
4065 | struct cleanup *old_chain; | |
4066 | ||
35df4500 TJB |
4067 | /* BL is never in moribund_locations by our callers. */ |
4068 | gdb_assert (bl->owner != NULL); | |
2bdf28a0 | 4069 | |
6c95b8df PA |
4070 | /* The type of none suggests that owner is actually deleted. |
4071 | This should not ever happen. */ | |
35df4500 | 4072 | gdb_assert (bl->owner->type != bp_none); |
6c95b8df PA |
4073 | |
4074 | old_chain = save_current_space_and_thread (); | |
4075 | ||
35df4500 | 4076 | switch_to_program_space_and_thread (bl->pspace); |
6c95b8df | 4077 | |
35df4500 | 4078 | ret = remove_breakpoint_1 (bl, is); |
6c95b8df PA |
4079 | |
4080 | do_cleanups (old_chain); | |
4081 | return ret; | |
4082 | } | |
4083 | ||
c906108c SS |
4084 | /* Clear the "inserted" flag in all breakpoints. */ |
4085 | ||
25b22b0a | 4086 | void |
fba45db2 | 4087 | mark_breakpoints_out (void) |
c906108c | 4088 | { |
35df4500 | 4089 | struct bp_location *bl, **blp_tmp; |
c906108c | 4090 | |
35df4500 | 4091 | ALL_BP_LOCATIONS (bl, blp_tmp) |
66c4b3e8 | 4092 | if (bl->pspace == current_program_space) |
35df4500 | 4093 | bl->inserted = 0; |
c906108c SS |
4094 | } |
4095 | ||
53a5351d JM |
4096 | /* Clear the "inserted" flag in all breakpoints and delete any |
4097 | breakpoints which should go away between runs of the program. | |
c906108c SS |
4098 | |
4099 | Plus other such housekeeping that has to be done for breakpoints | |
4100 | between runs. | |
4101 | ||
53a5351d JM |
4102 | Note: this function gets called at the end of a run (by |
4103 | generic_mourn_inferior) and when a run begins (by | |
4a64f543 | 4104 | init_wait_for_inferior). */ |
c906108c SS |
4105 | |
4106 | ||
4107 | ||
4108 | void | |
fba45db2 | 4109 | breakpoint_init_inferior (enum inf_context context) |
c906108c | 4110 | { |
35df4500 TJB |
4111 | struct breakpoint *b, *b_tmp; |
4112 | struct bp_location *bl, **blp_tmp; | |
1c5cfe86 | 4113 | int ix; |
6c95b8df | 4114 | struct program_space *pspace = current_program_space; |
c906108c | 4115 | |
50c71eaf PA |
4116 | /* If breakpoint locations are shared across processes, then there's |
4117 | nothing to do. */ | |
f5656ead | 4118 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
4119 | return; |
4120 | ||
1a853c52 | 4121 | mark_breakpoints_out (); |
075f6582 | 4122 | |
35df4500 | 4123 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 4124 | { |
6c95b8df PA |
4125 | if (b->loc && b->loc->pspace != pspace) |
4126 | continue; | |
4127 | ||
c5aa993b JM |
4128 | switch (b->type) |
4129 | { | |
4130 | case bp_call_dummy: | |
e2e4d78b | 4131 | case bp_longjmp_call_dummy: |
c906108c | 4132 | |
c5aa993b | 4133 | /* If the call dummy breakpoint is at the entry point it will |
ab92d69b PA |
4134 | cause problems when the inferior is rerun, so we better get |
4135 | rid of it. */ | |
4136 | ||
4137 | case bp_watchpoint_scope: | |
4138 | ||
4139 | /* Also get rid of scope breakpoints. */ | |
4140 | ||
4141 | case bp_shlib_event: | |
4142 | ||
4143 | /* Also remove solib event breakpoints. Their addresses may | |
4144 | have changed since the last time we ran the program. | |
4145 | Actually we may now be debugging against different target; | |
4146 | and so the solib backend that installed this breakpoint may | |
4147 | not be used in by the target. E.g., | |
4148 | ||
4149 | (gdb) file prog-linux | |
4150 | (gdb) run # native linux target | |
4151 | ... | |
4152 | (gdb) kill | |
4153 | (gdb) file prog-win.exe | |
4154 | (gdb) tar rem :9999 # remote Windows gdbserver. | |
4155 | */ | |
c906108c | 4156 | |
f59f708a PA |
4157 | case bp_step_resume: |
4158 | ||
4159 | /* Also remove step-resume breakpoints. */ | |
4160 | ||
7c16b83e PA |
4161 | case bp_single_step: |
4162 | ||
4163 | /* Also remove single-step breakpoints. */ | |
4164 | ||
c5aa993b JM |
4165 | delete_breakpoint (b); |
4166 | break; | |
c906108c | 4167 | |
c5aa993b JM |
4168 | case bp_watchpoint: |
4169 | case bp_hardware_watchpoint: | |
4170 | case bp_read_watchpoint: | |
4171 | case bp_access_watchpoint: | |
3a5c3e22 PA |
4172 | { |
4173 | struct watchpoint *w = (struct watchpoint *) b; | |
c906108c | 4174 | |
3a5c3e22 PA |
4175 | /* Likewise for watchpoints on local expressions. */ |
4176 | if (w->exp_valid_block != NULL) | |
4177 | delete_breakpoint (b); | |
4178 | else if (context == inf_starting) | |
4179 | { | |
4180 | /* Reset val field to force reread of starting value in | |
4181 | insert_breakpoints. */ | |
4182 | if (w->val) | |
4183 | value_free (w->val); | |
4184 | w->val = NULL; | |
4185 | w->val_valid = 0; | |
c860120c | 4186 | } |
3a5c3e22 | 4187 | } |
c5aa993b JM |
4188 | break; |
4189 | default: | |
c5aa993b JM |
4190 | break; |
4191 | } | |
4192 | } | |
1c5cfe86 PA |
4193 | |
4194 | /* Get rid of the moribund locations. */ | |
35df4500 TJB |
4195 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, bl); ++ix) |
4196 | decref_bp_location (&bl); | |
1c5cfe86 | 4197 | VEC_free (bp_location_p, moribund_locations); |
c906108c SS |
4198 | } |
4199 | ||
6c95b8df PA |
4200 | /* These functions concern about actual breakpoints inserted in the |
4201 | target --- to e.g. check if we need to do decr_pc adjustment or if | |
4202 | we need to hop over the bkpt --- so we check for address space | |
4203 | match, not program space. */ | |
4204 | ||
c2c6d25f JM |
4205 | /* breakpoint_here_p (PC) returns non-zero if an enabled breakpoint |
4206 | exists at PC. It returns ordinary_breakpoint_here if it's an | |
4207 | ordinary breakpoint, or permanent_breakpoint_here if it's a | |
4208 | permanent breakpoint. | |
4209 | - When continuing from a location with an ordinary breakpoint, we | |
4210 | actually single step once before calling insert_breakpoints. | |
e5dd4106 | 4211 | - When continuing from a location with a permanent breakpoint, we |
c2c6d25f JM |
4212 | need to use the `SKIP_PERMANENT_BREAKPOINT' macro, provided by |
4213 | the target, to advance the PC past the breakpoint. */ | |
c906108c | 4214 | |
c2c6d25f | 4215 | enum breakpoint_here |
6c95b8df | 4216 | breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc) |
c906108c | 4217 | { |
35df4500 | 4218 | struct bp_location *bl, **blp_tmp; |
c2c6d25f | 4219 | int any_breakpoint_here = 0; |
c906108c | 4220 | |
35df4500 | 4221 | ALL_BP_LOCATIONS (bl, blp_tmp) |
075f6582 | 4222 | { |
35df4500 TJB |
4223 | if (bl->loc_type != bp_loc_software_breakpoint |
4224 | && bl->loc_type != bp_loc_hardware_breakpoint) | |
075f6582 DJ |
4225 | continue; |
4226 | ||
f1310107 | 4227 | /* ALL_BP_LOCATIONS bp_location has BL->OWNER always non-NULL. */ |
35df4500 | 4228 | if ((breakpoint_enabled (bl->owner) |
1a853c52 | 4229 | || bl->permanent) |
f1310107 | 4230 | && breakpoint_location_address_match (bl, aspace, pc)) |
075f6582 DJ |
4231 | { |
4232 | if (overlay_debugging | |
35df4500 TJB |
4233 | && section_is_overlay (bl->section) |
4234 | && !section_is_mapped (bl->section)) | |
075f6582 | 4235 | continue; /* unmapped overlay -- can't be a match */ |
1a853c52 | 4236 | else if (bl->permanent) |
075f6582 DJ |
4237 | return permanent_breakpoint_here; |
4238 | else | |
4239 | any_breakpoint_here = 1; | |
4240 | } | |
4241 | } | |
c906108c | 4242 | |
f486487f | 4243 | return any_breakpoint_here ? ordinary_breakpoint_here : no_breakpoint_here; |
c906108c SS |
4244 | } |
4245 | ||
1c5cfe86 PA |
4246 | /* Return true if there's a moribund breakpoint at PC. */ |
4247 | ||
4248 | int | |
6c95b8df | 4249 | moribund_breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc) |
1c5cfe86 PA |
4250 | { |
4251 | struct bp_location *loc; | |
4252 | int ix; | |
4253 | ||
4254 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix) | |
f1310107 | 4255 | if (breakpoint_location_address_match (loc, aspace, pc)) |
1c5cfe86 PA |
4256 | return 1; |
4257 | ||
4258 | return 0; | |
4259 | } | |
c2c6d25f | 4260 | |
f7ce857f PA |
4261 | /* Returns non-zero iff BL is inserted at PC, in address space |
4262 | ASPACE. */ | |
4263 | ||
4264 | static int | |
4265 | bp_location_inserted_here_p (struct bp_location *bl, | |
4266 | struct address_space *aspace, CORE_ADDR pc) | |
4267 | { | |
4268 | if (bl->inserted | |
4269 | && breakpoint_address_match (bl->pspace->aspace, bl->address, | |
4270 | aspace, pc)) | |
4271 | { | |
4272 | if (overlay_debugging | |
4273 | && section_is_overlay (bl->section) | |
4274 | && !section_is_mapped (bl->section)) | |
4275 | return 0; /* unmapped overlay -- can't be a match */ | |
4276 | else | |
4277 | return 1; | |
4278 | } | |
4279 | return 0; | |
4280 | } | |
4281 | ||
a1fd2fa5 | 4282 | /* Returns non-zero iff there's a breakpoint inserted at PC. */ |
c906108c SS |
4283 | |
4284 | int | |
a1fd2fa5 | 4285 | breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc) |
c906108c | 4286 | { |
f7ce857f PA |
4287 | struct bp_location **blp, **blp_tmp = NULL; |
4288 | struct bp_location *bl; | |
c906108c | 4289 | |
f7ce857f | 4290 | ALL_BP_LOCATIONS_AT_ADDR (blp, blp_tmp, pc) |
c5aa993b | 4291 | { |
f7ce857f PA |
4292 | struct bp_location *bl = *blp; |
4293 | ||
35df4500 TJB |
4294 | if (bl->loc_type != bp_loc_software_breakpoint |
4295 | && bl->loc_type != bp_loc_hardware_breakpoint) | |
075f6582 DJ |
4296 | continue; |
4297 | ||
f7ce857f PA |
4298 | if (bp_location_inserted_here_p (bl, aspace, pc)) |
4299 | return 1; | |
c5aa993b | 4300 | } |
c36b740a VP |
4301 | return 0; |
4302 | } | |
4303 | ||
a1fd2fa5 PA |
4304 | /* This function returns non-zero iff there is a software breakpoint |
4305 | inserted at PC. */ | |
c36b740a VP |
4306 | |
4307 | int | |
a1fd2fa5 PA |
4308 | software_breakpoint_inserted_here_p (struct address_space *aspace, |
4309 | CORE_ADDR pc) | |
4fa8626c | 4310 | { |
f7ce857f PA |
4311 | struct bp_location **blp, **blp_tmp = NULL; |
4312 | struct bp_location *bl; | |
4fa8626c | 4313 | |
f7ce857f | 4314 | ALL_BP_LOCATIONS_AT_ADDR (blp, blp_tmp, pc) |
4fa8626c | 4315 | { |
f7ce857f PA |
4316 | struct bp_location *bl = *blp; |
4317 | ||
35df4500 | 4318 | if (bl->loc_type != bp_loc_software_breakpoint) |
4fa8626c DJ |
4319 | continue; |
4320 | ||
f7ce857f PA |
4321 | if (bp_location_inserted_here_p (bl, aspace, pc)) |
4322 | return 1; | |
4fa8626c DJ |
4323 | } |
4324 | ||
4325 | return 0; | |
9c02b525 PA |
4326 | } |
4327 | ||
4328 | /* See breakpoint.h. */ | |
4329 | ||
4330 | int | |
4331 | hardware_breakpoint_inserted_here_p (struct address_space *aspace, | |
4332 | CORE_ADDR pc) | |
4333 | { | |
4334 | struct bp_location **blp, **blp_tmp = NULL; | |
4335 | struct bp_location *bl; | |
4336 | ||
4337 | ALL_BP_LOCATIONS_AT_ADDR (blp, blp_tmp, pc) | |
4338 | { | |
4339 | struct bp_location *bl = *blp; | |
4340 | ||
4341 | if (bl->loc_type != bp_loc_hardware_breakpoint) | |
4342 | continue; | |
4343 | ||
4344 | if (bp_location_inserted_here_p (bl, aspace, pc)) | |
4345 | return 1; | |
4346 | } | |
4347 | ||
4348 | return 0; | |
4fa8626c DJ |
4349 | } |
4350 | ||
9093389c PA |
4351 | int |
4352 | hardware_watchpoint_inserted_in_range (struct address_space *aspace, | |
4353 | CORE_ADDR addr, ULONGEST len) | |
4354 | { | |
4355 | struct breakpoint *bpt; | |
4356 | ||
4357 | ALL_BREAKPOINTS (bpt) | |
4358 | { | |
4359 | struct bp_location *loc; | |
4360 | ||
4361 | if (bpt->type != bp_hardware_watchpoint | |
4362 | && bpt->type != bp_access_watchpoint) | |
4363 | continue; | |
4364 | ||
4365 | if (!breakpoint_enabled (bpt)) | |
4366 | continue; | |
4367 | ||
4368 | for (loc = bpt->loc; loc; loc = loc->next) | |
4369 | if (loc->pspace->aspace == aspace && loc->inserted) | |
4370 | { | |
4371 | CORE_ADDR l, h; | |
4372 | ||
4373 | /* Check for intersection. */ | |
4374 | l = max (loc->address, addr); | |
4375 | h = min (loc->address + loc->length, addr + len); | |
4376 | if (l < h) | |
4377 | return 1; | |
4378 | } | |
4379 | } | |
4380 | return 0; | |
4381 | } | |
c906108c | 4382 | \f |
c5aa993b | 4383 | |
c906108c SS |
4384 | /* bpstat stuff. External routines' interfaces are documented |
4385 | in breakpoint.h. */ | |
4386 | ||
4387 | int | |
c326b90e | 4388 | is_catchpoint (struct breakpoint *ep) |
c906108c | 4389 | { |
533be4dd | 4390 | return (ep->type == bp_catchpoint); |
c906108c SS |
4391 | } |
4392 | ||
f431efe5 PA |
4393 | /* Frees any storage that is part of a bpstat. Does not walk the |
4394 | 'next' chain. */ | |
4395 | ||
4396 | static void | |
198757a8 VP |
4397 | bpstat_free (bpstat bs) |
4398 | { | |
4399 | if (bs->old_val != NULL) | |
4400 | value_free (bs->old_val); | |
9add0f1b | 4401 | decref_counted_command_line (&bs->commands); |
f431efe5 | 4402 | decref_bp_location (&bs->bp_location_at); |
198757a8 VP |
4403 | xfree (bs); |
4404 | } | |
4405 | ||
c906108c SS |
4406 | /* Clear a bpstat so that it says we are not at any breakpoint. |
4407 | Also free any storage that is part of a bpstat. */ | |
4408 | ||
4409 | void | |
fba45db2 | 4410 | bpstat_clear (bpstat *bsp) |
c906108c SS |
4411 | { |
4412 | bpstat p; | |
4413 | bpstat q; | |
4414 | ||
4415 | if (bsp == 0) | |
4416 | return; | |
4417 | p = *bsp; | |
4418 | while (p != NULL) | |
4419 | { | |
4420 | q = p->next; | |
198757a8 | 4421 | bpstat_free (p); |
c906108c SS |
4422 | p = q; |
4423 | } | |
4424 | *bsp = NULL; | |
4425 | } | |
4426 | ||
4427 | /* Return a copy of a bpstat. Like "bs1 = bs2" but all storage that | |
4428 | is part of the bpstat is copied as well. */ | |
4429 | ||
4430 | bpstat | |
fba45db2 | 4431 | bpstat_copy (bpstat bs) |
c906108c SS |
4432 | { |
4433 | bpstat p = NULL; | |
4434 | bpstat tmp; | |
4435 | bpstat retval = NULL; | |
4436 | ||
4437 | if (bs == NULL) | |
4438 | return bs; | |
4439 | ||
4440 | for (; bs != NULL; bs = bs->next) | |
4441 | { | |
4442 | tmp = (bpstat) xmalloc (sizeof (*tmp)); | |
4443 | memcpy (tmp, bs, sizeof (*tmp)); | |
9add0f1b | 4444 | incref_counted_command_line (tmp->commands); |
f431efe5 | 4445 | incref_bp_location (tmp->bp_location_at); |
31cc81e9 | 4446 | if (bs->old_val != NULL) |
3c3185ac JK |
4447 | { |
4448 | tmp->old_val = value_copy (bs->old_val); | |
4449 | release_value (tmp->old_val); | |
4450 | } | |
31cc81e9 | 4451 | |
c906108c SS |
4452 | if (p == NULL) |
4453 | /* This is the first thing in the chain. */ | |
4454 | retval = tmp; | |
4455 | else | |
4456 | p->next = tmp; | |
4457 | p = tmp; | |
4458 | } | |
4459 | p->next = NULL; | |
4460 | return retval; | |
4461 | } | |
4462 | ||
4a64f543 | 4463 | /* Find the bpstat associated with this breakpoint. */ |
c906108c SS |
4464 | |
4465 | bpstat | |
fba45db2 | 4466 | bpstat_find_breakpoint (bpstat bsp, struct breakpoint *breakpoint) |
c906108c | 4467 | { |
c5aa993b JM |
4468 | if (bsp == NULL) |
4469 | return NULL; | |
c906108c | 4470 | |
c5aa993b JM |
4471 | for (; bsp != NULL; bsp = bsp->next) |
4472 | { | |
f431efe5 | 4473 | if (bsp->breakpoint_at == breakpoint) |
c5aa993b JM |
4474 | return bsp; |
4475 | } | |
c906108c SS |
4476 | return NULL; |
4477 | } | |
4478 | ||
ab04a2af TT |
4479 | /* See breakpoint.h. */ |
4480 | ||
47591c29 | 4481 | int |
427cd150 | 4482 | bpstat_explains_signal (bpstat bsp, enum gdb_signal sig) |
ab04a2af | 4483 | { |
ab04a2af TT |
4484 | for (; bsp != NULL; bsp = bsp->next) |
4485 | { | |
427cd150 TT |
4486 | if (bsp->breakpoint_at == NULL) |
4487 | { | |
4488 | /* A moribund location can never explain a signal other than | |
4489 | GDB_SIGNAL_TRAP. */ | |
4490 | if (sig == GDB_SIGNAL_TRAP) | |
47591c29 | 4491 | return 1; |
427cd150 TT |
4492 | } |
4493 | else | |
47591c29 PA |
4494 | { |
4495 | if (bsp->breakpoint_at->ops->explains_signal (bsp->breakpoint_at, | |
4496 | sig)) | |
4497 | return 1; | |
4498 | } | |
ab04a2af TT |
4499 | } |
4500 | ||
47591c29 | 4501 | return 0; |
ab04a2af TT |
4502 | } |
4503 | ||
4a64f543 MS |
4504 | /* Put in *NUM the breakpoint number of the first breakpoint we are |
4505 | stopped at. *BSP upon return is a bpstat which points to the | |
4506 | remaining breakpoints stopped at (but which is not guaranteed to be | |
4507 | good for anything but further calls to bpstat_num). | |
4508 | ||
8671a17b PA |
4509 | Return 0 if passed a bpstat which does not indicate any breakpoints. |
4510 | Return -1 if stopped at a breakpoint that has been deleted since | |
4511 | we set it. | |
4512 | Return 1 otherwise. */ | |
c906108c SS |
4513 | |
4514 | int | |
8671a17b | 4515 | bpstat_num (bpstat *bsp, int *num) |
c906108c SS |
4516 | { |
4517 | struct breakpoint *b; | |
4518 | ||
4519 | if ((*bsp) == NULL) | |
4520 | return 0; /* No more breakpoint values */ | |
8671a17b | 4521 | |
4a64f543 MS |
4522 | /* We assume we'll never have several bpstats that correspond to a |
4523 | single breakpoint -- otherwise, this function might return the | |
4524 | same number more than once and this will look ugly. */ | |
f431efe5 | 4525 | b = (*bsp)->breakpoint_at; |
8671a17b PA |
4526 | *bsp = (*bsp)->next; |
4527 | if (b == NULL) | |
4528 | return -1; /* breakpoint that's been deleted since */ | |
4529 | ||
4530 | *num = b->number; /* We have its number */ | |
4531 | return 1; | |
c906108c SS |
4532 | } |
4533 | ||
e93ca019 | 4534 | /* See breakpoint.h. */ |
c906108c SS |
4535 | |
4536 | void | |
e93ca019 | 4537 | bpstat_clear_actions (void) |
c906108c | 4538 | { |
e93ca019 JK |
4539 | struct thread_info *tp; |
4540 | bpstat bs; | |
4541 | ||
4542 | if (ptid_equal (inferior_ptid, null_ptid)) | |
4543 | return; | |
4544 | ||
4545 | tp = find_thread_ptid (inferior_ptid); | |
4546 | if (tp == NULL) | |
4547 | return; | |
4548 | ||
4549 | for (bs = tp->control.stop_bpstat; bs != NULL; bs = bs->next) | |
c906108c | 4550 | { |
9add0f1b | 4551 | decref_counted_command_line (&bs->commands); |
abf85f46 | 4552 | |
c906108c SS |
4553 | if (bs->old_val != NULL) |
4554 | { | |
4555 | value_free (bs->old_val); | |
4556 | bs->old_val = NULL; | |
4557 | } | |
4558 | } | |
4559 | } | |
4560 | ||
f3b1572e PA |
4561 | /* Called when a command is about to proceed the inferior. */ |
4562 | ||
4563 | static void | |
4564 | breakpoint_about_to_proceed (void) | |
4565 | { | |
4566 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
4567 | { | |
4568 | struct thread_info *tp = inferior_thread (); | |
4569 | ||
4570 | /* Allow inferior function calls in breakpoint commands to not | |
4571 | interrupt the command list. When the call finishes | |
4572 | successfully, the inferior will be standing at the same | |
4573 | breakpoint as if nothing happened. */ | |
16c381f0 | 4574 | if (tp->control.in_infcall) |
f3b1572e PA |
4575 | return; |
4576 | } | |
4577 | ||
4578 | breakpoint_proceeded = 1; | |
4579 | } | |
4580 | ||
4a64f543 MS |
4581 | /* Stub for cleaning up our state if we error-out of a breakpoint |
4582 | command. */ | |
c906108c | 4583 | static void |
4efb68b1 | 4584 | cleanup_executing_breakpoints (void *ignore) |
c906108c SS |
4585 | { |
4586 | executing_breakpoint_commands = 0; | |
4587 | } | |
4588 | ||
abf85f46 JK |
4589 | /* Return non-zero iff CMD as the first line of a command sequence is `silent' |
4590 | or its equivalent. */ | |
4591 | ||
4592 | static int | |
4593 | command_line_is_silent (struct command_line *cmd) | |
4594 | { | |
4f45d445 | 4595 | return cmd && (strcmp ("silent", cmd->line) == 0); |
abf85f46 JK |
4596 | } |
4597 | ||
4a64f543 MS |
4598 | /* Execute all the commands associated with all the breakpoints at |
4599 | this location. Any of these commands could cause the process to | |
4600 | proceed beyond this point, etc. We look out for such changes by | |
4601 | checking the global "breakpoint_proceeded" after each command. | |
c906108c | 4602 | |
347bddb7 PA |
4603 | Returns true if a breakpoint command resumed the inferior. In that |
4604 | case, it is the caller's responsibility to recall it again with the | |
4605 | bpstat of the current thread. */ | |
4606 | ||
4607 | static int | |
4608 | bpstat_do_actions_1 (bpstat *bsp) | |
c906108c SS |
4609 | { |
4610 | bpstat bs; | |
4611 | struct cleanup *old_chain; | |
347bddb7 | 4612 | int again = 0; |
c906108c SS |
4613 | |
4614 | /* Avoid endless recursion if a `source' command is contained | |
4615 | in bs->commands. */ | |
4616 | if (executing_breakpoint_commands) | |
347bddb7 | 4617 | return 0; |
c906108c SS |
4618 | |
4619 | executing_breakpoint_commands = 1; | |
4620 | old_chain = make_cleanup (cleanup_executing_breakpoints, 0); | |
4621 | ||
cf6c5ffb TT |
4622 | prevent_dont_repeat (); |
4623 | ||
4a64f543 | 4624 | /* This pointer will iterate over the list of bpstat's. */ |
c906108c SS |
4625 | bs = *bsp; |
4626 | ||
4627 | breakpoint_proceeded = 0; | |
4628 | for (; bs != NULL; bs = bs->next) | |
4629 | { | |
9add0f1b | 4630 | struct counted_command_line *ccmd; |
6c50ab1c JB |
4631 | struct command_line *cmd; |
4632 | struct cleanup *this_cmd_tree_chain; | |
4633 | ||
4634 | /* Take ownership of the BSP's command tree, if it has one. | |
4635 | ||
4636 | The command tree could legitimately contain commands like | |
4637 | 'step' and 'next', which call clear_proceed_status, which | |
4638 | frees stop_bpstat's command tree. To make sure this doesn't | |
4639 | free the tree we're executing out from under us, we need to | |
4640 | take ownership of the tree ourselves. Since a given bpstat's | |
4641 | commands are only executed once, we don't need to copy it; we | |
4642 | can clear the pointer in the bpstat, and make sure we free | |
4643 | the tree when we're done. */ | |
9add0f1b TT |
4644 | ccmd = bs->commands; |
4645 | bs->commands = NULL; | |
abf85f46 JK |
4646 | this_cmd_tree_chain = make_cleanup_decref_counted_command_line (&ccmd); |
4647 | cmd = ccmd ? ccmd->commands : NULL; | |
4648 | if (command_line_is_silent (cmd)) | |
4649 | { | |
4650 | /* The action has been already done by bpstat_stop_status. */ | |
4651 | cmd = cmd->next; | |
4652 | } | |
6c50ab1c | 4653 | |
c906108c SS |
4654 | while (cmd != NULL) |
4655 | { | |
4656 | execute_control_command (cmd); | |
4657 | ||
4658 | if (breakpoint_proceeded) | |
4659 | break; | |
4660 | else | |
4661 | cmd = cmd->next; | |
4662 | } | |
6c50ab1c JB |
4663 | |
4664 | /* We can free this command tree now. */ | |
4665 | do_cleanups (this_cmd_tree_chain); | |
4666 | ||
c906108c | 4667 | if (breakpoint_proceeded) |
32c1e744 | 4668 | { |
0b333c5e | 4669 | if (interpreter_async) |
347bddb7 PA |
4670 | /* If we are in async mode, then the target might be still |
4671 | running, not stopped at any breakpoint, so nothing for | |
4672 | us to do here -- just return to the event loop. */ | |
4673 | ; | |
32c1e744 VP |
4674 | else |
4675 | /* In sync mode, when execute_control_command returns | |
4676 | we're already standing on the next breakpoint. | |
347bddb7 PA |
4677 | Breakpoint commands for that stop were not run, since |
4678 | execute_command does not run breakpoint commands -- | |
4679 | only command_line_handler does, but that one is not | |
4680 | involved in execution of breakpoint commands. So, we | |
4681 | can now execute breakpoint commands. It should be | |
4682 | noted that making execute_command do bpstat actions is | |
4683 | not an option -- in this case we'll have recursive | |
4684 | invocation of bpstat for each breakpoint with a | |
4685 | command, and can easily blow up GDB stack. Instead, we | |
4686 | return true, which will trigger the caller to recall us | |
4687 | with the new stop_bpstat. */ | |
4688 | again = 1; | |
4689 | break; | |
32c1e744 | 4690 | } |
c906108c | 4691 | } |
c2b8ed2c | 4692 | do_cleanups (old_chain); |
347bddb7 PA |
4693 | return again; |
4694 | } | |
4695 | ||
4696 | void | |
4697 | bpstat_do_actions (void) | |
4698 | { | |
353d1d73 JK |
4699 | struct cleanup *cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
4700 | ||
347bddb7 PA |
4701 | /* Do any commands attached to breakpoint we are stopped at. */ |
4702 | while (!ptid_equal (inferior_ptid, null_ptid) | |
4703 | && target_has_execution | |
4704 | && !is_exited (inferior_ptid) | |
4705 | && !is_executing (inferior_ptid)) | |
4706 | /* Since in sync mode, bpstat_do_actions may resume the inferior, | |
4707 | and only return when it is stopped at the next breakpoint, we | |
4708 | keep doing breakpoint actions until it returns false to | |
4709 | indicate the inferior was not resumed. */ | |
16c381f0 | 4710 | if (!bpstat_do_actions_1 (&inferior_thread ()->control.stop_bpstat)) |
347bddb7 | 4711 | break; |
353d1d73 JK |
4712 | |
4713 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
4714 | } |
4715 | ||
fa4727a6 DJ |
4716 | /* Print out the (old or new) value associated with a watchpoint. */ |
4717 | ||
4718 | static void | |
4719 | watchpoint_value_print (struct value *val, struct ui_file *stream) | |
4720 | { | |
4721 | if (val == NULL) | |
4722 | fprintf_unfiltered (stream, _("<unreadable>")); | |
4723 | else | |
79a45b7d TT |
4724 | { |
4725 | struct value_print_options opts; | |
4726 | get_user_print_options (&opts); | |
4727 | value_print (val, stream, &opts); | |
4728 | } | |
fa4727a6 DJ |
4729 | } |
4730 | ||
e514a9d6 | 4731 | /* Generic routine for printing messages indicating why we |
4a64f543 | 4732 | stopped. The behavior of this function depends on the value |
e514a9d6 JM |
4733 | 'print_it' in the bpstat structure. Under some circumstances we |
4734 | may decide not to print anything here and delegate the task to | |
4a64f543 | 4735 | normal_stop(). */ |
e514a9d6 JM |
4736 | |
4737 | static enum print_stop_action | |
4738 | print_bp_stop_message (bpstat bs) | |
4739 | { | |
4740 | switch (bs->print_it) | |
4741 | { | |
4742 | case print_it_noop: | |
4a64f543 | 4743 | /* Nothing should be printed for this bpstat entry. */ |
e514a9d6 JM |
4744 | return PRINT_UNKNOWN; |
4745 | break; | |
4746 | ||
4747 | case print_it_done: | |
4748 | /* We still want to print the frame, but we already printed the | |
4a64f543 | 4749 | relevant messages. */ |
e514a9d6 JM |
4750 | return PRINT_SRC_AND_LOC; |
4751 | break; | |
4752 | ||
4753 | case print_it_normal: | |
4f8d1dc6 | 4754 | { |
f431efe5 PA |
4755 | struct breakpoint *b = bs->breakpoint_at; |
4756 | ||
1a6a67de TJB |
4757 | /* bs->breakpoint_at can be NULL if it was a momentary breakpoint |
4758 | which has since been deleted. */ | |
4759 | if (b == NULL) | |
4760 | return PRINT_UNKNOWN; | |
4761 | ||
348d480f PA |
4762 | /* Normal case. Call the breakpoint's print_it method. */ |
4763 | return b->ops->print_it (bs); | |
4f8d1dc6 | 4764 | } |
348d480f | 4765 | break; |
3086aeae | 4766 | |
e514a9d6 | 4767 | default: |
8e65ff28 | 4768 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 4769 | _("print_bp_stop_message: unrecognized enum value")); |
e514a9d6 | 4770 | break; |
c906108c | 4771 | } |
c906108c SS |
4772 | } |
4773 | ||
edcc5120 TT |
4774 | /* A helper function that prints a shared library stopped event. */ |
4775 | ||
4776 | static void | |
4777 | print_solib_event (int is_catchpoint) | |
4778 | { | |
4779 | int any_deleted | |
4780 | = !VEC_empty (char_ptr, current_program_space->deleted_solibs); | |
4781 | int any_added | |
4782 | = !VEC_empty (so_list_ptr, current_program_space->added_solibs); | |
4783 | ||
4784 | if (!is_catchpoint) | |
4785 | { | |
4786 | if (any_added || any_deleted) | |
4787 | ui_out_text (current_uiout, | |
4788 | _("Stopped due to shared library event:\n")); | |
4789 | else | |
4790 | ui_out_text (current_uiout, | |
4791 | _("Stopped due to shared library event (no " | |
4792 | "libraries added or removed)\n")); | |
4793 | } | |
4794 | ||
4795 | if (ui_out_is_mi_like_p (current_uiout)) | |
4796 | ui_out_field_string (current_uiout, "reason", | |
4797 | async_reason_lookup (EXEC_ASYNC_SOLIB_EVENT)); | |
4798 | ||
4799 | if (any_deleted) | |
4800 | { | |
4801 | struct cleanup *cleanup; | |
4802 | char *name; | |
4803 | int ix; | |
4804 | ||
4805 | ui_out_text (current_uiout, _(" Inferior unloaded ")); | |
4806 | cleanup = make_cleanup_ui_out_list_begin_end (current_uiout, | |
4807 | "removed"); | |
4808 | for (ix = 0; | |
4809 | VEC_iterate (char_ptr, current_program_space->deleted_solibs, | |
4810 | ix, name); | |
4811 | ++ix) | |
4812 | { | |
4813 | if (ix > 0) | |
4814 | ui_out_text (current_uiout, " "); | |
4815 | ui_out_field_string (current_uiout, "library", name); | |
4816 | ui_out_text (current_uiout, "\n"); | |
4817 | } | |
4818 | ||
4819 | do_cleanups (cleanup); | |
4820 | } | |
4821 | ||
4822 | if (any_added) | |
4823 | { | |
4824 | struct so_list *iter; | |
4825 | int ix; | |
4826 | struct cleanup *cleanup; | |
4827 | ||
4828 | ui_out_text (current_uiout, _(" Inferior loaded ")); | |
4829 | cleanup = make_cleanup_ui_out_list_begin_end (current_uiout, | |
4830 | "added"); | |
4831 | for (ix = 0; | |
4832 | VEC_iterate (so_list_ptr, current_program_space->added_solibs, | |
4833 | ix, iter); | |
4834 | ++ix) | |
4835 | { | |
4836 | if (ix > 0) | |
4837 | ui_out_text (current_uiout, " "); | |
4838 | ui_out_field_string (current_uiout, "library", iter->so_name); | |
4839 | ui_out_text (current_uiout, "\n"); | |
4840 | } | |
4841 | ||
4842 | do_cleanups (cleanup); | |
4843 | } | |
4844 | } | |
4845 | ||
e514a9d6 JM |
4846 | /* Print a message indicating what happened. This is called from |
4847 | normal_stop(). The input to this routine is the head of the bpstat | |
36dfb11c TT |
4848 | list - a list of the eventpoints that caused this stop. KIND is |
4849 | the target_waitkind for the stopping event. This | |
e514a9d6 JM |
4850 | routine calls the generic print routine for printing a message |
4851 | about reasons for stopping. This will print (for example) the | |
4852 | "Breakpoint n," part of the output. The return value of this | |
4853 | routine is one of: | |
c906108c | 4854 | |
4a64f543 | 4855 | PRINT_UNKNOWN: Means we printed nothing. |
917317f4 | 4856 | PRINT_SRC_AND_LOC: Means we printed something, and expect subsequent |
4a64f543 | 4857 | code to print the location. An example is |
c5aa993b JM |
4858 | "Breakpoint 1, " which should be followed by |
4859 | the location. | |
917317f4 | 4860 | PRINT_SRC_ONLY: Means we printed something, but there is no need |
c5aa993b JM |
4861 | to also print the location part of the message. |
4862 | An example is the catch/throw messages, which | |
4a64f543 | 4863 | don't require a location appended to the end. |
917317f4 | 4864 | PRINT_NOTHING: We have done some printing and we don't need any |
4a64f543 | 4865 | further info to be printed. */ |
c906108c | 4866 | |
917317f4 | 4867 | enum print_stop_action |
36dfb11c | 4868 | bpstat_print (bpstat bs, int kind) |
c906108c | 4869 | { |
f486487f | 4870 | enum print_stop_action val; |
c5aa993b | 4871 | |
c906108c | 4872 | /* Maybe another breakpoint in the chain caused us to stop. |
53a5351d JM |
4873 | (Currently all watchpoints go on the bpstat whether hit or not. |
4874 | That probably could (should) be changed, provided care is taken | |
c906108c | 4875 | with respect to bpstat_explains_signal). */ |
e514a9d6 JM |
4876 | for (; bs; bs = bs->next) |
4877 | { | |
4878 | val = print_bp_stop_message (bs); | |
4879 | if (val == PRINT_SRC_ONLY | |
4880 | || val == PRINT_SRC_AND_LOC | |
4881 | || val == PRINT_NOTHING) | |
4882 | return val; | |
4883 | } | |
c906108c | 4884 | |
36dfb11c TT |
4885 | /* If we had hit a shared library event breakpoint, |
4886 | print_bp_stop_message would print out this message. If we hit an | |
4887 | OS-level shared library event, do the same thing. */ | |
4888 | if (kind == TARGET_WAITKIND_LOADED) | |
4889 | { | |
edcc5120 | 4890 | print_solib_event (0); |
36dfb11c TT |
4891 | return PRINT_NOTHING; |
4892 | } | |
4893 | ||
e514a9d6 | 4894 | /* We reached the end of the chain, or we got a null BS to start |
4a64f543 | 4895 | with and nothing was printed. */ |
917317f4 | 4896 | return PRINT_UNKNOWN; |
c906108c SS |
4897 | } |
4898 | ||
c42bd95a DE |
4899 | /* Evaluate the expression EXP and return 1 if value is zero. |
4900 | This returns the inverse of the condition because it is called | |
4901 | from catch_errors which returns 0 if an exception happened, and if an | |
4902 | exception happens we want execution to stop. | |
4a64f543 | 4903 | The argument is a "struct expression *" that has been cast to a |
c42bd95a | 4904 | "void *" to make it pass through catch_errors. */ |
c906108c SS |
4905 | |
4906 | static int | |
4efb68b1 | 4907 | breakpoint_cond_eval (void *exp) |
c906108c | 4908 | { |
278cd55f | 4909 | struct value *mark = value_mark (); |
c5aa993b | 4910 | int i = !value_true (evaluate_expression ((struct expression *) exp)); |
cc59ec59 | 4911 | |
c906108c SS |
4912 | value_free_to_mark (mark); |
4913 | return i; | |
4914 | } | |
4915 | ||
5760d0ab | 4916 | /* Allocate a new bpstat. Link it to the FIFO list by BS_LINK_POINTER. */ |
c906108c SS |
4917 | |
4918 | static bpstat | |
5760d0ab | 4919 | bpstat_alloc (struct bp_location *bl, bpstat **bs_link_pointer) |
c906108c SS |
4920 | { |
4921 | bpstat bs; | |
4922 | ||
4923 | bs = (bpstat) xmalloc (sizeof (*bs)); | |
5760d0ab JK |
4924 | bs->next = NULL; |
4925 | **bs_link_pointer = bs; | |
4926 | *bs_link_pointer = &bs->next; | |
f431efe5 PA |
4927 | bs->breakpoint_at = bl->owner; |
4928 | bs->bp_location_at = bl; | |
4929 | incref_bp_location (bl); | |
c906108c SS |
4930 | /* If the condition is false, etc., don't do the commands. */ |
4931 | bs->commands = NULL; | |
4932 | bs->old_val = NULL; | |
4933 | bs->print_it = print_it_normal; | |
4934 | return bs; | |
4935 | } | |
4936 | \f | |
d983da9c DJ |
4937 | /* The target has stopped with waitstatus WS. Check if any hardware |
4938 | watchpoints have triggered, according to the target. */ | |
4939 | ||
4940 | int | |
4941 | watchpoints_triggered (struct target_waitstatus *ws) | |
4942 | { | |
d92524f1 | 4943 | int stopped_by_watchpoint = target_stopped_by_watchpoint (); |
d983da9c DJ |
4944 | CORE_ADDR addr; |
4945 | struct breakpoint *b; | |
4946 | ||
4947 | if (!stopped_by_watchpoint) | |
4948 | { | |
4949 | /* We were not stopped by a watchpoint. Mark all watchpoints | |
4950 | as not triggered. */ | |
4951 | ALL_BREAKPOINTS (b) | |
cc60f2e3 | 4952 | if (is_hardware_watchpoint (b)) |
3a5c3e22 PA |
4953 | { |
4954 | struct watchpoint *w = (struct watchpoint *) b; | |
4955 | ||
4956 | w->watchpoint_triggered = watch_triggered_no; | |
4957 | } | |
d983da9c DJ |
4958 | |
4959 | return 0; | |
4960 | } | |
4961 | ||
4962 | if (!target_stopped_data_address (¤t_target, &addr)) | |
4963 | { | |
4964 | /* We were stopped by a watchpoint, but we don't know where. | |
4965 | Mark all watchpoints as unknown. */ | |
4966 | ALL_BREAKPOINTS (b) | |
cc60f2e3 | 4967 | if (is_hardware_watchpoint (b)) |
3a5c3e22 PA |
4968 | { |
4969 | struct watchpoint *w = (struct watchpoint *) b; | |
4970 | ||
4971 | w->watchpoint_triggered = watch_triggered_unknown; | |
4972 | } | |
d983da9c | 4973 | |
3c4797ba | 4974 | return 1; |
d983da9c DJ |
4975 | } |
4976 | ||
4977 | /* The target could report the data address. Mark watchpoints | |
4978 | affected by this data address as triggered, and all others as not | |
4979 | triggered. */ | |
4980 | ||
4981 | ALL_BREAKPOINTS (b) | |
cc60f2e3 | 4982 | if (is_hardware_watchpoint (b)) |
d983da9c | 4983 | { |
3a5c3e22 | 4984 | struct watchpoint *w = (struct watchpoint *) b; |
a5606eee | 4985 | struct bp_location *loc; |
d983da9c | 4986 | |
3a5c3e22 | 4987 | w->watchpoint_triggered = watch_triggered_no; |
a5606eee | 4988 | for (loc = b->loc; loc; loc = loc->next) |
9c06b0b4 | 4989 | { |
3a5c3e22 | 4990 | if (is_masked_watchpoint (b)) |
9c06b0b4 | 4991 | { |
3a5c3e22 PA |
4992 | CORE_ADDR newaddr = addr & w->hw_wp_mask; |
4993 | CORE_ADDR start = loc->address & w->hw_wp_mask; | |
9c06b0b4 TJB |
4994 | |
4995 | if (newaddr == start) | |
4996 | { | |
3a5c3e22 | 4997 | w->watchpoint_triggered = watch_triggered_yes; |
9c06b0b4 TJB |
4998 | break; |
4999 | } | |
5000 | } | |
5001 | /* Exact match not required. Within range is sufficient. */ | |
5002 | else if (target_watchpoint_addr_within_range (¤t_target, | |
5003 | addr, loc->address, | |
5004 | loc->length)) | |
5005 | { | |
3a5c3e22 | 5006 | w->watchpoint_triggered = watch_triggered_yes; |
9c06b0b4 TJB |
5007 | break; |
5008 | } | |
5009 | } | |
d983da9c DJ |
5010 | } |
5011 | ||
5012 | return 1; | |
5013 | } | |
5014 | ||
c906108c SS |
5015 | /* Possible return values for watchpoint_check (this can't be an enum |
5016 | because of check_errors). */ | |
5017 | /* The watchpoint has been deleted. */ | |
5018 | #define WP_DELETED 1 | |
5019 | /* The value has changed. */ | |
5020 | #define WP_VALUE_CHANGED 2 | |
5021 | /* The value has not changed. */ | |
5022 | #define WP_VALUE_NOT_CHANGED 3 | |
60e1c644 PA |
5023 | /* Ignore this watchpoint, no matter if the value changed or not. */ |
5024 | #define WP_IGNORE 4 | |
c906108c SS |
5025 | |
5026 | #define BP_TEMPFLAG 1 | |
5027 | #define BP_HARDWAREFLAG 2 | |
5028 | ||
4a64f543 MS |
5029 | /* Evaluate watchpoint condition expression and check if its value |
5030 | changed. | |
553e4c11 JB |
5031 | |
5032 | P should be a pointer to struct bpstat, but is defined as a void * | |
5033 | in order for this function to be usable with catch_errors. */ | |
c906108c SS |
5034 | |
5035 | static int | |
4efb68b1 | 5036 | watchpoint_check (void *p) |
c906108c SS |
5037 | { |
5038 | bpstat bs = (bpstat) p; | |
3a5c3e22 | 5039 | struct watchpoint *b; |
c906108c SS |
5040 | struct frame_info *fr; |
5041 | int within_current_scope; | |
5042 | ||
f431efe5 | 5043 | /* BS is built from an existing struct breakpoint. */ |
2bdf28a0 | 5044 | gdb_assert (bs->breakpoint_at != NULL); |
3a5c3e22 | 5045 | b = (struct watchpoint *) bs->breakpoint_at; |
d0fb5eae | 5046 | |
f6bc2008 PA |
5047 | /* If this is a local watchpoint, we only want to check if the |
5048 | watchpoint frame is in scope if the current thread is the thread | |
5049 | that was used to create the watchpoint. */ | |
5050 | if (!watchpoint_in_thread_scope (b)) | |
60e1c644 | 5051 | return WP_IGNORE; |
f6bc2008 | 5052 | |
c906108c SS |
5053 | if (b->exp_valid_block == NULL) |
5054 | within_current_scope = 1; | |
5055 | else | |
5056 | { | |
edb3359d DJ |
5057 | struct frame_info *frame = get_current_frame (); |
5058 | struct gdbarch *frame_arch = get_frame_arch (frame); | |
5059 | CORE_ADDR frame_pc = get_frame_pc (frame); | |
5060 | ||
c9cf6e20 | 5061 | /* stack_frame_destroyed_p() returns a non-zero value if we're |
4a64f543 MS |
5062 | still in the function but the stack frame has already been |
5063 | invalidated. Since we can't rely on the values of local | |
5064 | variables after the stack has been destroyed, we are treating | |
5065 | the watchpoint in that state as `not changed' without further | |
5066 | checking. Don't mark watchpoints as changed if the current | |
5067 | frame is in an epilogue - even if they are in some other | |
5068 | frame, our view of the stack is likely to be wrong and | |
5069 | frame_find_by_id could error out. */ | |
c9cf6e20 | 5070 | if (gdbarch_stack_frame_destroyed_p (frame_arch, frame_pc)) |
60e1c644 | 5071 | return WP_IGNORE; |
a0f49112 | 5072 | |
101dcfbe | 5073 | fr = frame_find_by_id (b->watchpoint_frame); |
c906108c | 5074 | within_current_scope = (fr != NULL); |
69fbadd5 DJ |
5075 | |
5076 | /* If we've gotten confused in the unwinder, we might have | |
5077 | returned a frame that can't describe this variable. */ | |
edb3359d DJ |
5078 | if (within_current_scope) |
5079 | { | |
5080 | struct symbol *function; | |
5081 | ||
5082 | function = get_frame_function (fr); | |
5083 | if (function == NULL | |
5084 | || !contained_in (b->exp_valid_block, | |
5085 | SYMBOL_BLOCK_VALUE (function))) | |
5086 | within_current_scope = 0; | |
5087 | } | |
69fbadd5 | 5088 | |
edb3359d | 5089 | if (within_current_scope) |
c906108c SS |
5090 | /* If we end up stopping, the current frame will get selected |
5091 | in normal_stop. So this call to select_frame won't affect | |
5092 | the user. */ | |
0f7d239c | 5093 | select_frame (fr); |
c906108c | 5094 | } |
c5aa993b | 5095 | |
c906108c SS |
5096 | if (within_current_scope) |
5097 | { | |
4a64f543 MS |
5098 | /* We use value_{,free_to_}mark because it could be a *long* |
5099 | time before we return to the command level and call | |
5100 | free_all_values. We can't call free_all_values because we | |
5101 | might be in the middle of evaluating a function call. */ | |
c906108c | 5102 | |
0cf6dd15 | 5103 | int pc = 0; |
9c06b0b4 | 5104 | struct value *mark; |
fa4727a6 DJ |
5105 | struct value *new_val; |
5106 | ||
3a5c3e22 | 5107 | if (is_masked_watchpoint (&b->base)) |
9c06b0b4 TJB |
5108 | /* Since we don't know the exact trigger address (from |
5109 | stopped_data_address), just tell the user we've triggered | |
5110 | a mask watchpoint. */ | |
5111 | return WP_VALUE_CHANGED; | |
5112 | ||
5113 | mark = value_mark (); | |
3a1115a0 | 5114 | fetch_subexp_value (b->exp, &pc, &new_val, NULL, NULL, 0); |
218d2fc6 | 5115 | |
bb9d5f81 PP |
5116 | if (b->val_bitsize != 0) |
5117 | new_val = extract_bitfield_from_watchpoint_value (b, new_val); | |
5118 | ||
4a64f543 MS |
5119 | /* We use value_equal_contents instead of value_equal because |
5120 | the latter coerces an array to a pointer, thus comparing just | |
5121 | the address of the array instead of its contents. This is | |
5122 | not what we want. */ | |
fa4727a6 | 5123 | if ((b->val != NULL) != (new_val != NULL) |
218d2fc6 | 5124 | || (b->val != NULL && !value_equal_contents (b->val, new_val))) |
c906108c | 5125 | { |
fa4727a6 DJ |
5126 | if (new_val != NULL) |
5127 | { | |
5128 | release_value (new_val); | |
5129 | value_free_to_mark (mark); | |
5130 | } | |
c906108c SS |
5131 | bs->old_val = b->val; |
5132 | b->val = new_val; | |
fa4727a6 | 5133 | b->val_valid = 1; |
c906108c SS |
5134 | return WP_VALUE_CHANGED; |
5135 | } | |
5136 | else | |
5137 | { | |
60e1c644 | 5138 | /* Nothing changed. */ |
c906108c | 5139 | value_free_to_mark (mark); |
c906108c SS |
5140 | return WP_VALUE_NOT_CHANGED; |
5141 | } | |
5142 | } | |
5143 | else | |
5144 | { | |
79a45e25 PA |
5145 | struct ui_out *uiout = current_uiout; |
5146 | ||
c906108c | 5147 | /* This seems like the only logical thing to do because |
c5aa993b JM |
5148 | if we temporarily ignored the watchpoint, then when |
5149 | we reenter the block in which it is valid it contains | |
5150 | garbage (in the case of a function, it may have two | |
5151 | garbage values, one before and one after the prologue). | |
5152 | So we can't even detect the first assignment to it and | |
5153 | watch after that (since the garbage may or may not equal | |
5154 | the first value assigned). */ | |
348d480f PA |
5155 | /* We print all the stop information in |
5156 | breakpoint_ops->print_it, but in this case, by the time we | |
5157 | call breakpoint_ops->print_it this bp will be deleted | |
5158 | already. So we have no choice but print the information | |
5159 | here. */ | |
9dc5e2a9 | 5160 | if (ui_out_is_mi_like_p (uiout)) |
034dad6f BR |
5161 | ui_out_field_string |
5162 | (uiout, "reason", async_reason_lookup (EXEC_ASYNC_WATCHPOINT_SCOPE)); | |
8b93c638 | 5163 | ui_out_text (uiout, "\nWatchpoint "); |
3a5c3e22 | 5164 | ui_out_field_int (uiout, "wpnum", b->base.number); |
3e43a32a MS |
5165 | ui_out_text (uiout, |
5166 | " deleted because the program has left the block in\n\ | |
8b93c638 | 5167 | which its expression is valid.\n"); |
4ce44c66 | 5168 | |
cdac0397 | 5169 | /* Make sure the watchpoint's commands aren't executed. */ |
3a5c3e22 | 5170 | decref_counted_command_line (&b->base.commands); |
d0fb5eae | 5171 | watchpoint_del_at_next_stop (b); |
c906108c SS |
5172 | |
5173 | return WP_DELETED; | |
5174 | } | |
5175 | } | |
5176 | ||
18a18393 | 5177 | /* Return true if it looks like target has stopped due to hitting |
348d480f PA |
5178 | breakpoint location BL. This function does not check if we should |
5179 | stop, only if BL explains the stop. */ | |
5180 | ||
18a18393 | 5181 | static int |
6c95b8df | 5182 | bpstat_check_location (const struct bp_location *bl, |
09ac7c10 TT |
5183 | struct address_space *aspace, CORE_ADDR bp_addr, |
5184 | const struct target_waitstatus *ws) | |
18a18393 VP |
5185 | { |
5186 | struct breakpoint *b = bl->owner; | |
5187 | ||
348d480f | 5188 | /* BL is from an existing breakpoint. */ |
2bdf28a0 JK |
5189 | gdb_assert (b != NULL); |
5190 | ||
09ac7c10 | 5191 | return b->ops->breakpoint_hit (bl, aspace, bp_addr, ws); |
18a18393 VP |
5192 | } |
5193 | ||
3a5c3e22 PA |
5194 | /* Determine if the watched values have actually changed, and we |
5195 | should stop. If not, set BS->stop to 0. */ | |
5196 | ||
18a18393 VP |
5197 | static void |
5198 | bpstat_check_watchpoint (bpstat bs) | |
5199 | { | |
2bdf28a0 | 5200 | const struct bp_location *bl; |
3a5c3e22 | 5201 | struct watchpoint *b; |
2bdf28a0 JK |
5202 | |
5203 | /* BS is built for existing struct breakpoint. */ | |
f431efe5 | 5204 | bl = bs->bp_location_at; |
2bdf28a0 | 5205 | gdb_assert (bl != NULL); |
3a5c3e22 | 5206 | b = (struct watchpoint *) bs->breakpoint_at; |
2bdf28a0 | 5207 | gdb_assert (b != NULL); |
18a18393 | 5208 | |
18a18393 | 5209 | { |
18a18393 VP |
5210 | int must_check_value = 0; |
5211 | ||
3a5c3e22 | 5212 | if (b->base.type == bp_watchpoint) |
18a18393 VP |
5213 | /* For a software watchpoint, we must always check the |
5214 | watched value. */ | |
5215 | must_check_value = 1; | |
5216 | else if (b->watchpoint_triggered == watch_triggered_yes) | |
5217 | /* We have a hardware watchpoint (read, write, or access) | |
5218 | and the target earlier reported an address watched by | |
5219 | this watchpoint. */ | |
5220 | must_check_value = 1; | |
5221 | else if (b->watchpoint_triggered == watch_triggered_unknown | |
3a5c3e22 | 5222 | && b->base.type == bp_hardware_watchpoint) |
18a18393 VP |
5223 | /* We were stopped by a hardware watchpoint, but the target could |
5224 | not report the data address. We must check the watchpoint's | |
5225 | value. Access and read watchpoints are out of luck; without | |
5226 | a data address, we can't figure it out. */ | |
5227 | must_check_value = 1; | |
3a5c3e22 | 5228 | |
18a18393 VP |
5229 | if (must_check_value) |
5230 | { | |
3e43a32a MS |
5231 | char *message |
5232 | = xstrprintf ("Error evaluating expression for watchpoint %d\n", | |
3a5c3e22 | 5233 | b->base.number); |
18a18393 VP |
5234 | struct cleanup *cleanups = make_cleanup (xfree, message); |
5235 | int e = catch_errors (watchpoint_check, bs, message, | |
5236 | RETURN_MASK_ALL); | |
5237 | do_cleanups (cleanups); | |
5238 | switch (e) | |
5239 | { | |
5240 | case WP_DELETED: | |
5241 | /* We've already printed what needs to be printed. */ | |
5242 | bs->print_it = print_it_done; | |
5243 | /* Stop. */ | |
5244 | break; | |
60e1c644 PA |
5245 | case WP_IGNORE: |
5246 | bs->print_it = print_it_noop; | |
5247 | bs->stop = 0; | |
5248 | break; | |
18a18393 | 5249 | case WP_VALUE_CHANGED: |
3a5c3e22 | 5250 | if (b->base.type == bp_read_watchpoint) |
18a18393 | 5251 | { |
85d721b8 PA |
5252 | /* There are two cases to consider here: |
5253 | ||
4a64f543 | 5254 | 1. We're watching the triggered memory for reads. |
85d721b8 PA |
5255 | In that case, trust the target, and always report |
5256 | the watchpoint hit to the user. Even though | |
5257 | reads don't cause value changes, the value may | |
5258 | have changed since the last time it was read, and | |
5259 | since we're not trapping writes, we will not see | |
5260 | those, and as such we should ignore our notion of | |
5261 | old value. | |
5262 | ||
4a64f543 | 5263 | 2. We're watching the triggered memory for both |
85d721b8 PA |
5264 | reads and writes. There are two ways this may |
5265 | happen: | |
5266 | ||
4a64f543 | 5267 | 2.1. This is a target that can't break on data |
85d721b8 PA |
5268 | reads only, but can break on accesses (reads or |
5269 | writes), such as e.g., x86. We detect this case | |
5270 | at the time we try to insert read watchpoints. | |
5271 | ||
4a64f543 | 5272 | 2.2. Otherwise, the target supports read |
85d721b8 PA |
5273 | watchpoints, but, the user set an access or write |
5274 | watchpoint watching the same memory as this read | |
5275 | watchpoint. | |
5276 | ||
5277 | If we're watching memory writes as well as reads, | |
5278 | ignore watchpoint hits when we find that the | |
5279 | value hasn't changed, as reads don't cause | |
5280 | changes. This still gives false positives when | |
5281 | the program writes the same value to memory as | |
5282 | what there was already in memory (we will confuse | |
5283 | it for a read), but it's much better than | |
5284 | nothing. */ | |
5285 | ||
5286 | int other_write_watchpoint = 0; | |
5287 | ||
5288 | if (bl->watchpoint_type == hw_read) | |
5289 | { | |
5290 | struct breakpoint *other_b; | |
5291 | ||
5292 | ALL_BREAKPOINTS (other_b) | |
3a5c3e22 PA |
5293 | if (other_b->type == bp_hardware_watchpoint |
5294 | || other_b->type == bp_access_watchpoint) | |
85d721b8 | 5295 | { |
3a5c3e22 PA |
5296 | struct watchpoint *other_w = |
5297 | (struct watchpoint *) other_b; | |
5298 | ||
5299 | if (other_w->watchpoint_triggered | |
5300 | == watch_triggered_yes) | |
5301 | { | |
5302 | other_write_watchpoint = 1; | |
5303 | break; | |
5304 | } | |
85d721b8 PA |
5305 | } |
5306 | } | |
5307 | ||
5308 | if (other_write_watchpoint | |
5309 | || bl->watchpoint_type == hw_access) | |
5310 | { | |
5311 | /* We're watching the same memory for writes, | |
5312 | and the value changed since the last time we | |
5313 | updated it, so this trap must be for a write. | |
5314 | Ignore it. */ | |
5315 | bs->print_it = print_it_noop; | |
5316 | bs->stop = 0; | |
5317 | } | |
18a18393 VP |
5318 | } |
5319 | break; | |
5320 | case WP_VALUE_NOT_CHANGED: | |
3a5c3e22 PA |
5321 | if (b->base.type == bp_hardware_watchpoint |
5322 | || b->base.type == bp_watchpoint) | |
18a18393 VP |
5323 | { |
5324 | /* Don't stop: write watchpoints shouldn't fire if | |
5325 | the value hasn't changed. */ | |
5326 | bs->print_it = print_it_noop; | |
5327 | bs->stop = 0; | |
5328 | } | |
5329 | /* Stop. */ | |
5330 | break; | |
5331 | default: | |
5332 | /* Can't happen. */ | |
5333 | case 0: | |
5334 | /* Error from catch_errors. */ | |
3a5c3e22 | 5335 | printf_filtered (_("Watchpoint %d deleted.\n"), b->base.number); |
d0fb5eae | 5336 | watchpoint_del_at_next_stop (b); |
18a18393 VP |
5337 | /* We've already printed what needs to be printed. */ |
5338 | bs->print_it = print_it_done; | |
5339 | break; | |
5340 | } | |
5341 | } | |
5342 | else /* must_check_value == 0 */ | |
5343 | { | |
5344 | /* This is a case where some watchpoint(s) triggered, but | |
5345 | not at the address of this watchpoint, or else no | |
5346 | watchpoint triggered after all. So don't print | |
5347 | anything for this watchpoint. */ | |
5348 | bs->print_it = print_it_noop; | |
5349 | bs->stop = 0; | |
5350 | } | |
5351 | } | |
5352 | } | |
5353 | ||
7d4df6a4 DE |
5354 | /* For breakpoints that are currently marked as telling gdb to stop, |
5355 | check conditions (condition proper, frame, thread and ignore count) | |
18a18393 VP |
5356 | of breakpoint referred to by BS. If we should not stop for this |
5357 | breakpoint, set BS->stop to 0. */ | |
f431efe5 | 5358 | |
18a18393 VP |
5359 | static void |
5360 | bpstat_check_breakpoint_conditions (bpstat bs, ptid_t ptid) | |
5361 | { | |
2bdf28a0 JK |
5362 | const struct bp_location *bl; |
5363 | struct breakpoint *b; | |
7d4df6a4 DE |
5364 | int value_is_zero = 0; |
5365 | struct expression *cond; | |
5366 | ||
5367 | gdb_assert (bs->stop); | |
2bdf28a0 JK |
5368 | |
5369 | /* BS is built for existing struct breakpoint. */ | |
f431efe5 | 5370 | bl = bs->bp_location_at; |
2bdf28a0 | 5371 | gdb_assert (bl != NULL); |
f431efe5 | 5372 | b = bs->breakpoint_at; |
2bdf28a0 | 5373 | gdb_assert (b != NULL); |
18a18393 | 5374 | |
b775012e LM |
5375 | /* Even if the target evaluated the condition on its end and notified GDB, we |
5376 | need to do so again since GDB does not know if we stopped due to a | |
5377 | breakpoint or a single step breakpoint. */ | |
5378 | ||
18a18393 | 5379 | if (frame_id_p (b->frame_id) |
edb3359d | 5380 | && !frame_id_eq (b->frame_id, get_stack_frame_id (get_current_frame ()))) |
18a18393 | 5381 | { |
7d4df6a4 DE |
5382 | bs->stop = 0; |
5383 | return; | |
5384 | } | |
60e1c644 | 5385 | |
12ab52e9 PA |
5386 | /* If this is a thread/task-specific breakpoint, don't waste cpu |
5387 | evaluating the condition if this isn't the specified | |
5388 | thread/task. */ | |
5389 | if ((b->thread != -1 && b->thread != pid_to_thread_id (ptid)) | |
5390 | || (b->task != 0 && b->task != ada_get_task_number (ptid))) | |
5391 | ||
6c1b0f7b DE |
5392 | { |
5393 | bs->stop = 0; | |
5394 | return; | |
5395 | } | |
5396 | ||
6dddc817 DE |
5397 | /* Evaluate extension language breakpoints that have a "stop" method |
5398 | implemented. */ | |
5399 | bs->stop = breakpoint_ext_lang_cond_says_stop (b); | |
7371cf6d | 5400 | |
7d4df6a4 DE |
5401 | if (is_watchpoint (b)) |
5402 | { | |
5403 | struct watchpoint *w = (struct watchpoint *) b; | |
3a5c3e22 | 5404 | |
7d4df6a4 DE |
5405 | cond = w->cond_exp; |
5406 | } | |
5407 | else | |
5408 | cond = bl->cond; | |
60e1c644 | 5409 | |
7d4df6a4 DE |
5410 | if (cond && b->disposition != disp_del_at_next_stop) |
5411 | { | |
5412 | int within_current_scope = 1; | |
5413 | struct watchpoint * w; | |
60e1c644 | 5414 | |
7d4df6a4 DE |
5415 | /* We use value_mark and value_free_to_mark because it could |
5416 | be a long time before we return to the command level and | |
5417 | call free_all_values. We can't call free_all_values | |
5418 | because we might be in the middle of evaluating a | |
5419 | function call. */ | |
5420 | struct value *mark = value_mark (); | |
5421 | ||
5422 | if (is_watchpoint (b)) | |
5423 | w = (struct watchpoint *) b; | |
5424 | else | |
5425 | w = NULL; | |
5426 | ||
5427 | /* Need to select the frame, with all that implies so that | |
5428 | the conditions will have the right context. Because we | |
5429 | use the frame, we will not see an inlined function's | |
5430 | variables when we arrive at a breakpoint at the start | |
5431 | of the inlined function; the current frame will be the | |
5432 | call site. */ | |
5433 | if (w == NULL || w->cond_exp_valid_block == NULL) | |
5434 | select_frame (get_current_frame ()); | |
5435 | else | |
18a18393 | 5436 | { |
7d4df6a4 DE |
5437 | struct frame_info *frame; |
5438 | ||
5439 | /* For local watchpoint expressions, which particular | |
5440 | instance of a local is being watched matters, so we | |
5441 | keep track of the frame to evaluate the expression | |
5442 | in. To evaluate the condition however, it doesn't | |
5443 | really matter which instantiation of the function | |
5444 | where the condition makes sense triggers the | |
5445 | watchpoint. This allows an expression like "watch | |
5446 | global if q > 10" set in `func', catch writes to | |
5447 | global on all threads that call `func', or catch | |
5448 | writes on all recursive calls of `func' by a single | |
5449 | thread. We simply always evaluate the condition in | |
5450 | the innermost frame that's executing where it makes | |
5451 | sense to evaluate the condition. It seems | |
5452 | intuitive. */ | |
5453 | frame = block_innermost_frame (w->cond_exp_valid_block); | |
5454 | if (frame != NULL) | |
5455 | select_frame (frame); | |
5456 | else | |
5457 | within_current_scope = 0; | |
18a18393 | 5458 | } |
7d4df6a4 DE |
5459 | if (within_current_scope) |
5460 | value_is_zero | |
5461 | = catch_errors (breakpoint_cond_eval, cond, | |
5462 | "Error in testing breakpoint condition:\n", | |
5463 | RETURN_MASK_ALL); | |
5464 | else | |
18a18393 | 5465 | { |
7d4df6a4 DE |
5466 | warning (_("Watchpoint condition cannot be tested " |
5467 | "in the current scope")); | |
5468 | /* If we failed to set the right context for this | |
5469 | watchpoint, unconditionally report it. */ | |
5470 | value_is_zero = 0; | |
18a18393 | 5471 | } |
7d4df6a4 DE |
5472 | /* FIXME-someday, should give breakpoint #. */ |
5473 | value_free_to_mark (mark); | |
18a18393 | 5474 | } |
7d4df6a4 DE |
5475 | |
5476 | if (cond && value_is_zero) | |
5477 | { | |
5478 | bs->stop = 0; | |
5479 | } | |
7d4df6a4 DE |
5480 | else if (b->ignore_count > 0) |
5481 | { | |
5482 | b->ignore_count--; | |
5483 | bs->stop = 0; | |
5484 | /* Increase the hit count even though we don't stop. */ | |
5485 | ++(b->hit_count); | |
5486 | observer_notify_breakpoint_modified (b); | |
5487 | } | |
18a18393 VP |
5488 | } |
5489 | ||
1cf4d951 PA |
5490 | /* Returns true if we need to track moribund locations of LOC's type |
5491 | on the current target. */ | |
5492 | ||
5493 | static int | |
5494 | need_moribund_for_location_type (struct bp_location *loc) | |
5495 | { | |
5496 | return ((loc->loc_type == bp_loc_software_breakpoint | |
5497 | && !target_supports_stopped_by_sw_breakpoint ()) | |
5498 | || (loc->loc_type == bp_loc_hardware_breakpoint | |
5499 | && !target_supports_stopped_by_hw_breakpoint ())); | |
5500 | } | |
5501 | ||
18a18393 | 5502 | |
9709f61c | 5503 | /* Get a bpstat associated with having just stopped at address |
d983da9c | 5504 | BP_ADDR in thread PTID. |
c906108c | 5505 | |
d983da9c | 5506 | Determine whether we stopped at a breakpoint, etc, or whether we |
4a64f543 MS |
5507 | don't understand this stop. Result is a chain of bpstat's such |
5508 | that: | |
c906108c | 5509 | |
c5aa993b | 5510 | if we don't understand the stop, the result is a null pointer. |
c906108c | 5511 | |
c5aa993b | 5512 | if we understand why we stopped, the result is not null. |
c906108c | 5513 | |
c5aa993b JM |
5514 | Each element of the chain refers to a particular breakpoint or |
5515 | watchpoint at which we have stopped. (We may have stopped for | |
5516 | several reasons concurrently.) | |
c906108c | 5517 | |
c5aa993b JM |
5518 | Each element of the chain has valid next, breakpoint_at, |
5519 | commands, FIXME??? fields. */ | |
c906108c SS |
5520 | |
5521 | bpstat | |
6c95b8df | 5522 | bpstat_stop_status (struct address_space *aspace, |
09ac7c10 TT |
5523 | CORE_ADDR bp_addr, ptid_t ptid, |
5524 | const struct target_waitstatus *ws) | |
c906108c | 5525 | { |
0d381245 | 5526 | struct breakpoint *b = NULL; |
afe38095 | 5527 | struct bp_location *bl; |
20874c92 | 5528 | struct bp_location *loc; |
5760d0ab JK |
5529 | /* First item of allocated bpstat's. */ |
5530 | bpstat bs_head = NULL, *bs_link = &bs_head; | |
c906108c | 5531 | /* Pointer to the last thing in the chain currently. */ |
5760d0ab | 5532 | bpstat bs; |
20874c92 | 5533 | int ix; |
429374b8 | 5534 | int need_remove_insert; |
f431efe5 | 5535 | int removed_any; |
c906108c | 5536 | |
f431efe5 PA |
5537 | /* First, build the bpstat chain with locations that explain a |
5538 | target stop, while being careful to not set the target running, | |
5539 | as that may invalidate locations (in particular watchpoint | |
5540 | locations are recreated). Resuming will happen here with | |
5541 | breakpoint conditions or watchpoint expressions that include | |
5542 | inferior function calls. */ | |
c5aa993b | 5543 | |
429374b8 JK |
5544 | ALL_BREAKPOINTS (b) |
5545 | { | |
1a853c52 | 5546 | if (!breakpoint_enabled (b)) |
429374b8 | 5547 | continue; |
a5606eee | 5548 | |
429374b8 JK |
5549 | for (bl = b->loc; bl != NULL; bl = bl->next) |
5550 | { | |
4a64f543 MS |
5551 | /* For hardware watchpoints, we look only at the first |
5552 | location. The watchpoint_check function will work on the | |
5553 | entire expression, not the individual locations. For | |
5554 | read watchpoints, the watchpoints_triggered function has | |
5555 | checked all locations already. */ | |
429374b8 JK |
5556 | if (b->type == bp_hardware_watchpoint && bl != b->loc) |
5557 | break; | |
18a18393 | 5558 | |
f6592439 | 5559 | if (!bl->enabled || bl->shlib_disabled) |
429374b8 | 5560 | continue; |
c5aa993b | 5561 | |
09ac7c10 | 5562 | if (!bpstat_check_location (bl, aspace, bp_addr, ws)) |
429374b8 | 5563 | continue; |
c5aa993b | 5564 | |
4a64f543 MS |
5565 | /* Come here if it's a watchpoint, or if the break address |
5566 | matches. */ | |
c5aa993b | 5567 | |
4a64f543 MS |
5568 | bs = bpstat_alloc (bl, &bs_link); /* Alloc a bpstat to |
5569 | explain stop. */ | |
c5aa993b | 5570 | |
f431efe5 PA |
5571 | /* Assume we stop. Should we find a watchpoint that is not |
5572 | actually triggered, or if the condition of the breakpoint | |
5573 | evaluates as false, we'll reset 'stop' to 0. */ | |
429374b8 JK |
5574 | bs->stop = 1; |
5575 | bs->print = 1; | |
d983da9c | 5576 | |
f431efe5 PA |
5577 | /* If this is a scope breakpoint, mark the associated |
5578 | watchpoint as triggered so that we will handle the | |
5579 | out-of-scope event. We'll get to the watchpoint next | |
5580 | iteration. */ | |
d0fb5eae | 5581 | if (b->type == bp_watchpoint_scope && b->related_breakpoint != b) |
3a5c3e22 PA |
5582 | { |
5583 | struct watchpoint *w = (struct watchpoint *) b->related_breakpoint; | |
5584 | ||
5585 | w->watchpoint_triggered = watch_triggered_yes; | |
5586 | } | |
f431efe5 PA |
5587 | } |
5588 | } | |
5589 | ||
7c16b83e | 5590 | /* Check if a moribund breakpoint explains the stop. */ |
1cf4d951 PA |
5591 | if (!target_supports_stopped_by_sw_breakpoint () |
5592 | || !target_supports_stopped_by_hw_breakpoint ()) | |
f431efe5 | 5593 | { |
1cf4d951 | 5594 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix) |
f431efe5 | 5595 | { |
1cf4d951 PA |
5596 | if (breakpoint_location_address_match (loc, aspace, bp_addr) |
5597 | && need_moribund_for_location_type (loc)) | |
5598 | { | |
5599 | bs = bpstat_alloc (loc, &bs_link); | |
5600 | /* For hits of moribund locations, we should just proceed. */ | |
5601 | bs->stop = 0; | |
5602 | bs->print = 0; | |
5603 | bs->print_it = print_it_noop; | |
5604 | } | |
f431efe5 PA |
5605 | } |
5606 | } | |
5607 | ||
edcc5120 TT |
5608 | /* A bit of special processing for shlib breakpoints. We need to |
5609 | process solib loading here, so that the lists of loaded and | |
5610 | unloaded libraries are correct before we handle "catch load" and | |
5611 | "catch unload". */ | |
5612 | for (bs = bs_head; bs != NULL; bs = bs->next) | |
5613 | { | |
5d268276 | 5614 | if (bs->breakpoint_at && bs->breakpoint_at->type == bp_shlib_event) |
edcc5120 TT |
5615 | { |
5616 | handle_solib_event (); | |
5617 | break; | |
5618 | } | |
5619 | } | |
5620 | ||
f431efe5 PA |
5621 | /* Now go through the locations that caused the target to stop, and |
5622 | check whether we're interested in reporting this stop to higher | |
5623 | layers, or whether we should resume the target transparently. */ | |
5624 | ||
5625 | removed_any = 0; | |
5626 | ||
5760d0ab | 5627 | for (bs = bs_head; bs != NULL; bs = bs->next) |
f431efe5 PA |
5628 | { |
5629 | if (!bs->stop) | |
5630 | continue; | |
5631 | ||
f431efe5 | 5632 | b = bs->breakpoint_at; |
348d480f PA |
5633 | b->ops->check_status (bs); |
5634 | if (bs->stop) | |
28010a5d | 5635 | { |
348d480f | 5636 | bpstat_check_breakpoint_conditions (bs, ptid); |
f431efe5 | 5637 | |
429374b8 JK |
5638 | if (bs->stop) |
5639 | { | |
5640 | ++(b->hit_count); | |
8d3788bd | 5641 | observer_notify_breakpoint_modified (b); |
c906108c | 5642 | |
4a64f543 | 5643 | /* We will stop here. */ |
429374b8 JK |
5644 | if (b->disposition == disp_disable) |
5645 | { | |
816338b5 | 5646 | --(b->enable_count); |
1a853c52 | 5647 | if (b->enable_count <= 0) |
429374b8 | 5648 | b->enable_state = bp_disabled; |
f431efe5 | 5649 | removed_any = 1; |
429374b8 JK |
5650 | } |
5651 | if (b->silent) | |
5652 | bs->print = 0; | |
5653 | bs->commands = b->commands; | |
9add0f1b | 5654 | incref_counted_command_line (bs->commands); |
abf85f46 JK |
5655 | if (command_line_is_silent (bs->commands |
5656 | ? bs->commands->commands : NULL)) | |
5657 | bs->print = 0; | |
9d6e6e84 HZ |
5658 | |
5659 | b->ops->after_condition_true (bs); | |
429374b8 JK |
5660 | } |
5661 | ||
348d480f | 5662 | } |
a9b3a50f PA |
5663 | |
5664 | /* Print nothing for this entry if we don't stop or don't | |
5665 | print. */ | |
5666 | if (!bs->stop || !bs->print) | |
5667 | bs->print_it = print_it_noop; | |
429374b8 | 5668 | } |
876fa593 | 5669 | |
d983da9c DJ |
5670 | /* If we aren't stopping, the value of some hardware watchpoint may |
5671 | not have changed, but the intermediate memory locations we are | |
5672 | watching may have. Don't bother if we're stopping; this will get | |
5673 | done later. */ | |
d832cb68 | 5674 | need_remove_insert = 0; |
5760d0ab JK |
5675 | if (! bpstat_causes_stop (bs_head)) |
5676 | for (bs = bs_head; bs != NULL; bs = bs->next) | |
d983da9c | 5677 | if (!bs->stop |
f431efe5 PA |
5678 | && bs->breakpoint_at |
5679 | && is_hardware_watchpoint (bs->breakpoint_at)) | |
d983da9c | 5680 | { |
3a5c3e22 PA |
5681 | struct watchpoint *w = (struct watchpoint *) bs->breakpoint_at; |
5682 | ||
5683 | update_watchpoint (w, 0 /* don't reparse. */); | |
d832cb68 | 5684 | need_remove_insert = 1; |
d983da9c DJ |
5685 | } |
5686 | ||
d832cb68 | 5687 | if (need_remove_insert) |
44702360 | 5688 | update_global_location_list (UGLL_MAY_INSERT); |
f431efe5 | 5689 | else if (removed_any) |
44702360 | 5690 | update_global_location_list (UGLL_DONT_INSERT); |
d832cb68 | 5691 | |
5760d0ab | 5692 | return bs_head; |
c906108c | 5693 | } |
628fe4e4 JK |
5694 | |
5695 | static void | |
5696 | handle_jit_event (void) | |
5697 | { | |
5698 | struct frame_info *frame; | |
5699 | struct gdbarch *gdbarch; | |
5700 | ||
243a9253 PA |
5701 | if (debug_infrun) |
5702 | fprintf_unfiltered (gdb_stdlog, "handling bp_jit_event\n"); | |
5703 | ||
628fe4e4 JK |
5704 | /* Switch terminal for any messages produced by |
5705 | breakpoint_re_set. */ | |
5706 | target_terminal_ours_for_output (); | |
5707 | ||
5708 | frame = get_current_frame (); | |
5709 | gdbarch = get_frame_arch (frame); | |
5710 | ||
5711 | jit_event_handler (gdbarch); | |
5712 | ||
5713 | target_terminal_inferior (); | |
5714 | } | |
5715 | ||
5716 | /* Prepare WHAT final decision for infrun. */ | |
5717 | ||
5718 | /* Decide what infrun needs to do with this bpstat. */ | |
5719 | ||
c906108c | 5720 | struct bpstat_what |
0e30163f | 5721 | bpstat_what (bpstat bs_head) |
c906108c | 5722 | { |
c906108c | 5723 | struct bpstat_what retval; |
628fe4e4 | 5724 | int jit_event = 0; |
0e30163f | 5725 | bpstat bs; |
c906108c | 5726 | |
628fe4e4 | 5727 | retval.main_action = BPSTAT_WHAT_KEEP_CHECKING; |
aa7d318d | 5728 | retval.call_dummy = STOP_NONE; |
186c406b | 5729 | retval.is_longjmp = 0; |
628fe4e4 | 5730 | |
0e30163f | 5731 | for (bs = bs_head; bs != NULL; bs = bs->next) |
c906108c | 5732 | { |
628fe4e4 JK |
5733 | /* Extract this BS's action. After processing each BS, we check |
5734 | if its action overrides all we've seem so far. */ | |
5735 | enum bpstat_what_main_action this_action = BPSTAT_WHAT_KEEP_CHECKING; | |
5736 | enum bptype bptype; | |
5737 | ||
c906108c | 5738 | if (bs->breakpoint_at == NULL) |
628fe4e4 JK |
5739 | { |
5740 | /* I suspect this can happen if it was a momentary | |
5741 | breakpoint which has since been deleted. */ | |
5742 | bptype = bp_none; | |
5743 | } | |
20874c92 | 5744 | else |
f431efe5 | 5745 | bptype = bs->breakpoint_at->type; |
628fe4e4 JK |
5746 | |
5747 | switch (bptype) | |
c906108c SS |
5748 | { |
5749 | case bp_none: | |
628fe4e4 | 5750 | break; |
c906108c SS |
5751 | case bp_breakpoint: |
5752 | case bp_hardware_breakpoint: | |
7c16b83e | 5753 | case bp_single_step: |
c906108c SS |
5754 | case bp_until: |
5755 | case bp_finish: | |
a9b3a50f | 5756 | case bp_shlib_event: |
c906108c SS |
5757 | if (bs->stop) |
5758 | { | |
5759 | if (bs->print) | |
628fe4e4 | 5760 | this_action = BPSTAT_WHAT_STOP_NOISY; |
c906108c | 5761 | else |
628fe4e4 | 5762 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c906108c SS |
5763 | } |
5764 | else | |
628fe4e4 | 5765 | this_action = BPSTAT_WHAT_SINGLE; |
c906108c SS |
5766 | break; |
5767 | case bp_watchpoint: | |
5768 | case bp_hardware_watchpoint: | |
5769 | case bp_read_watchpoint: | |
5770 | case bp_access_watchpoint: | |
5771 | if (bs->stop) | |
5772 | { | |
5773 | if (bs->print) | |
628fe4e4 | 5774 | this_action = BPSTAT_WHAT_STOP_NOISY; |
c906108c | 5775 | else |
628fe4e4 | 5776 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c906108c SS |
5777 | } |
5778 | else | |
628fe4e4 JK |
5779 | { |
5780 | /* There was a watchpoint, but we're not stopping. | |
5781 | This requires no further action. */ | |
5782 | } | |
c906108c SS |
5783 | break; |
5784 | case bp_longjmp: | |
e2e4d78b | 5785 | case bp_longjmp_call_dummy: |
186c406b | 5786 | case bp_exception: |
0a39bb32 PA |
5787 | if (bs->stop) |
5788 | { | |
5789 | this_action = BPSTAT_WHAT_SET_LONGJMP_RESUME; | |
5790 | retval.is_longjmp = bptype != bp_exception; | |
5791 | } | |
5792 | else | |
5793 | this_action = BPSTAT_WHAT_SINGLE; | |
c906108c SS |
5794 | break; |
5795 | case bp_longjmp_resume: | |
186c406b | 5796 | case bp_exception_resume: |
0a39bb32 PA |
5797 | if (bs->stop) |
5798 | { | |
5799 | this_action = BPSTAT_WHAT_CLEAR_LONGJMP_RESUME; | |
5800 | retval.is_longjmp = bptype == bp_longjmp_resume; | |
5801 | } | |
5802 | else | |
5803 | this_action = BPSTAT_WHAT_SINGLE; | |
c906108c SS |
5804 | break; |
5805 | case bp_step_resume: | |
5806 | if (bs->stop) | |
628fe4e4 JK |
5807 | this_action = BPSTAT_WHAT_STEP_RESUME; |
5808 | else | |
c906108c | 5809 | { |
628fe4e4 JK |
5810 | /* It is for the wrong frame. */ |
5811 | this_action = BPSTAT_WHAT_SINGLE; | |
c906108c | 5812 | } |
c906108c | 5813 | break; |
2c03e5be PA |
5814 | case bp_hp_step_resume: |
5815 | if (bs->stop) | |
5816 | this_action = BPSTAT_WHAT_HP_STEP_RESUME; | |
5817 | else | |
5818 | { | |
5819 | /* It is for the wrong frame. */ | |
5820 | this_action = BPSTAT_WHAT_SINGLE; | |
5821 | } | |
5822 | break; | |
c906108c | 5823 | case bp_watchpoint_scope: |
c4093a6a | 5824 | case bp_thread_event: |
1900040c | 5825 | case bp_overlay_event: |
0fd8e87f | 5826 | case bp_longjmp_master: |
aa7d318d | 5827 | case bp_std_terminate_master: |
186c406b | 5828 | case bp_exception_master: |
628fe4e4 | 5829 | this_action = BPSTAT_WHAT_SINGLE; |
c4093a6a | 5830 | break; |
ce78b96d | 5831 | case bp_catchpoint: |
c5aa993b JM |
5832 | if (bs->stop) |
5833 | { | |
5834 | if (bs->print) | |
628fe4e4 | 5835 | this_action = BPSTAT_WHAT_STOP_NOISY; |
c5aa993b | 5836 | else |
628fe4e4 | 5837 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c5aa993b JM |
5838 | } |
5839 | else | |
628fe4e4 JK |
5840 | { |
5841 | /* There was a catchpoint, but we're not stopping. | |
5842 | This requires no further action. */ | |
5843 | } | |
5844 | break; | |
628fe4e4 JK |
5845 | case bp_jit_event: |
5846 | jit_event = 1; | |
5847 | this_action = BPSTAT_WHAT_SINGLE; | |
c5aa993b | 5848 | break; |
c906108c | 5849 | case bp_call_dummy: |
53a5351d JM |
5850 | /* Make sure the action is stop (silent or noisy), |
5851 | so infrun.c pops the dummy frame. */ | |
aa7d318d | 5852 | retval.call_dummy = STOP_STACK_DUMMY; |
628fe4e4 | 5853 | this_action = BPSTAT_WHAT_STOP_SILENT; |
aa7d318d TT |
5854 | break; |
5855 | case bp_std_terminate: | |
5856 | /* Make sure the action is stop (silent or noisy), | |
5857 | so infrun.c pops the dummy frame. */ | |
aa7d318d | 5858 | retval.call_dummy = STOP_STD_TERMINATE; |
628fe4e4 | 5859 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c906108c | 5860 | break; |
1042e4c0 | 5861 | case bp_tracepoint: |
7a697b8d | 5862 | case bp_fast_tracepoint: |
0fb4aa4b | 5863 | case bp_static_tracepoint: |
1042e4c0 SS |
5864 | /* Tracepoint hits should not be reported back to GDB, and |
5865 | if one got through somehow, it should have been filtered | |
5866 | out already. */ | |
5867 | internal_error (__FILE__, __LINE__, | |
7a697b8d | 5868 | _("bpstat_what: tracepoint encountered")); |
0e30163f JK |
5869 | break; |
5870 | case bp_gnu_ifunc_resolver: | |
5871 | /* Step over it (and insert bp_gnu_ifunc_resolver_return). */ | |
5872 | this_action = BPSTAT_WHAT_SINGLE; | |
5873 | break; | |
5874 | case bp_gnu_ifunc_resolver_return: | |
5875 | /* The breakpoint will be removed, execution will restart from the | |
5876 | PC of the former breakpoint. */ | |
5877 | this_action = BPSTAT_WHAT_KEEP_CHECKING; | |
5878 | break; | |
e7e0cddf SS |
5879 | |
5880 | case bp_dprintf: | |
a11cfd87 HZ |
5881 | if (bs->stop) |
5882 | this_action = BPSTAT_WHAT_STOP_SILENT; | |
5883 | else | |
5884 | this_action = BPSTAT_WHAT_SINGLE; | |
e7e0cddf SS |
5885 | break; |
5886 | ||
628fe4e4 JK |
5887 | default: |
5888 | internal_error (__FILE__, __LINE__, | |
5889 | _("bpstat_what: unhandled bptype %d"), (int) bptype); | |
c906108c | 5890 | } |
628fe4e4 JK |
5891 | |
5892 | retval.main_action = max (retval.main_action, this_action); | |
c906108c | 5893 | } |
628fe4e4 | 5894 | |
243a9253 PA |
5895 | return retval; |
5896 | } | |
628fe4e4 | 5897 | |
243a9253 PA |
5898 | void |
5899 | bpstat_run_callbacks (bpstat bs_head) | |
5900 | { | |
5901 | bpstat bs; | |
628fe4e4 | 5902 | |
0e30163f JK |
5903 | for (bs = bs_head; bs != NULL; bs = bs->next) |
5904 | { | |
5905 | struct breakpoint *b = bs->breakpoint_at; | |
5906 | ||
5907 | if (b == NULL) | |
5908 | continue; | |
5909 | switch (b->type) | |
5910 | { | |
243a9253 PA |
5911 | case bp_jit_event: |
5912 | handle_jit_event (); | |
5913 | break; | |
0e30163f JK |
5914 | case bp_gnu_ifunc_resolver: |
5915 | gnu_ifunc_resolver_stop (b); | |
5916 | break; | |
5917 | case bp_gnu_ifunc_resolver_return: | |
5918 | gnu_ifunc_resolver_return_stop (b); | |
5919 | break; | |
5920 | } | |
5921 | } | |
c906108c SS |
5922 | } |
5923 | ||
5924 | /* Nonzero if we should step constantly (e.g. watchpoints on machines | |
5925 | without hardware support). This isn't related to a specific bpstat, | |
5926 | just to things like whether watchpoints are set. */ | |
5927 | ||
c5aa993b | 5928 | int |
fba45db2 | 5929 | bpstat_should_step (void) |
c906108c SS |
5930 | { |
5931 | struct breakpoint *b; | |
cc59ec59 | 5932 | |
c906108c | 5933 | ALL_BREAKPOINTS (b) |
717a8278 | 5934 | if (breakpoint_enabled (b) && b->type == bp_watchpoint && b->loc != NULL) |
3172dc30 | 5935 | return 1; |
c906108c SS |
5936 | return 0; |
5937 | } | |
5938 | ||
67822962 PA |
5939 | int |
5940 | bpstat_causes_stop (bpstat bs) | |
5941 | { | |
5942 | for (; bs != NULL; bs = bs->next) | |
5943 | if (bs->stop) | |
5944 | return 1; | |
5945 | ||
5946 | return 0; | |
5947 | } | |
5948 | ||
c906108c | 5949 | \f |
c5aa993b | 5950 | |
170b53b2 UW |
5951 | /* Compute a string of spaces suitable to indent the next line |
5952 | so it starts at the position corresponding to the table column | |
5953 | named COL_NAME in the currently active table of UIOUT. */ | |
5954 | ||
5955 | static char * | |
5956 | wrap_indent_at_field (struct ui_out *uiout, const char *col_name) | |
5957 | { | |
5958 | static char wrap_indent[80]; | |
5959 | int i, total_width, width, align; | |
5960 | char *text; | |
5961 | ||
5962 | total_width = 0; | |
5963 | for (i = 1; ui_out_query_field (uiout, i, &width, &align, &text); i++) | |
5964 | { | |
5965 | if (strcmp (text, col_name) == 0) | |
5966 | { | |
5967 | gdb_assert (total_width < sizeof wrap_indent); | |
5968 | memset (wrap_indent, ' ', total_width); | |
5969 | wrap_indent[total_width] = 0; | |
5970 | ||
5971 | return wrap_indent; | |
5972 | } | |
5973 | ||
5974 | total_width += width + 1; | |
5975 | } | |
5976 | ||
5977 | return NULL; | |
5978 | } | |
5979 | ||
b775012e LM |
5980 | /* Determine if the locations of this breakpoint will have their conditions |
5981 | evaluated by the target, host or a mix of both. Returns the following: | |
5982 | ||
5983 | "host": Host evals condition. | |
5984 | "host or target": Host or Target evals condition. | |
5985 | "target": Target evals condition. | |
5986 | */ | |
5987 | ||
5988 | static const char * | |
5989 | bp_condition_evaluator (struct breakpoint *b) | |
5990 | { | |
5991 | struct bp_location *bl; | |
5992 | char host_evals = 0; | |
5993 | char target_evals = 0; | |
5994 | ||
5995 | if (!b) | |
5996 | return NULL; | |
5997 | ||
5998 | if (!is_breakpoint (b)) | |
5999 | return NULL; | |
6000 | ||
6001 | if (gdb_evaluates_breakpoint_condition_p () | |
6002 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
6003 | return condition_evaluation_host; | |
6004 | ||
6005 | for (bl = b->loc; bl; bl = bl->next) | |
6006 | { | |
6007 | if (bl->cond_bytecode) | |
6008 | target_evals++; | |
6009 | else | |
6010 | host_evals++; | |
6011 | } | |
6012 | ||
6013 | if (host_evals && target_evals) | |
6014 | return condition_evaluation_both; | |
6015 | else if (target_evals) | |
6016 | return condition_evaluation_target; | |
6017 | else | |
6018 | return condition_evaluation_host; | |
6019 | } | |
6020 | ||
6021 | /* Determine the breakpoint location's condition evaluator. This is | |
6022 | similar to bp_condition_evaluator, but for locations. */ | |
6023 | ||
6024 | static const char * | |
6025 | bp_location_condition_evaluator (struct bp_location *bl) | |
6026 | { | |
6027 | if (bl && !is_breakpoint (bl->owner)) | |
6028 | return NULL; | |
6029 | ||
6030 | if (gdb_evaluates_breakpoint_condition_p () | |
6031 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
6032 | return condition_evaluation_host; | |
6033 | ||
6034 | if (bl && bl->cond_bytecode) | |
6035 | return condition_evaluation_target; | |
6036 | else | |
6037 | return condition_evaluation_host; | |
6038 | } | |
6039 | ||
859825b8 JK |
6040 | /* Print the LOC location out of the list of B->LOC locations. */ |
6041 | ||
170b53b2 UW |
6042 | static void |
6043 | print_breakpoint_location (struct breakpoint *b, | |
6044 | struct bp_location *loc) | |
0d381245 | 6045 | { |
79a45e25 | 6046 | struct ui_out *uiout = current_uiout; |
6c95b8df PA |
6047 | struct cleanup *old_chain = save_current_program_space (); |
6048 | ||
859825b8 JK |
6049 | if (loc != NULL && loc->shlib_disabled) |
6050 | loc = NULL; | |
6051 | ||
6c95b8df PA |
6052 | if (loc != NULL) |
6053 | set_current_program_space (loc->pspace); | |
6054 | ||
56435ebe | 6055 | if (b->display_canonical) |
f00aae0f KS |
6056 | ui_out_field_string (uiout, "what", |
6057 | event_location_to_string (b->location)); | |
2f202fde | 6058 | else if (loc && loc->symtab) |
0d381245 VP |
6059 | { |
6060 | struct symbol *sym | |
6061 | = find_pc_sect_function (loc->address, loc->section); | |
6062 | if (sym) | |
6063 | { | |
6064 | ui_out_text (uiout, "in "); | |
6065 | ui_out_field_string (uiout, "func", | |
6066 | SYMBOL_PRINT_NAME (sym)); | |
170b53b2 UW |
6067 | ui_out_text (uiout, " "); |
6068 | ui_out_wrap_hint (uiout, wrap_indent_at_field (uiout, "what")); | |
6069 | ui_out_text (uiout, "at "); | |
0d381245 | 6070 | } |
05cba821 JK |
6071 | ui_out_field_string (uiout, "file", |
6072 | symtab_to_filename_for_display (loc->symtab)); | |
0d381245 | 6073 | ui_out_text (uiout, ":"); |
05cba821 | 6074 | |
0d381245 | 6075 | if (ui_out_is_mi_like_p (uiout)) |
2f202fde JK |
6076 | ui_out_field_string (uiout, "fullname", |
6077 | symtab_to_fullname (loc->symtab)); | |
0d381245 | 6078 | |
f8eba3c6 | 6079 | ui_out_field_int (uiout, "line", loc->line_number); |
0d381245 | 6080 | } |
859825b8 | 6081 | else if (loc) |
0d381245 | 6082 | { |
f99d8bf4 PA |
6083 | struct ui_file *stb = mem_fileopen (); |
6084 | struct cleanup *stb_chain = make_cleanup_ui_file_delete (stb); | |
170b53b2 | 6085 | |
f99d8bf4 | 6086 | print_address_symbolic (loc->gdbarch, loc->address, stb, |
22e722e1 | 6087 | demangle, ""); |
0d381245 | 6088 | ui_out_field_stream (uiout, "at", stb); |
170b53b2 UW |
6089 | |
6090 | do_cleanups (stb_chain); | |
0d381245 | 6091 | } |
859825b8 | 6092 | else |
f00aae0f KS |
6093 | { |
6094 | ui_out_field_string (uiout, "pending", | |
6095 | event_location_to_string (b->location)); | |
6096 | /* If extra_string is available, it could be holding a condition | |
6097 | or dprintf arguments. In either case, make sure it is printed, | |
6098 | too, but only for non-MI streams. */ | |
6099 | if (!ui_out_is_mi_like_p (uiout) && b->extra_string != NULL) | |
6100 | { | |
6101 | if (b->type == bp_dprintf) | |
6102 | ui_out_text (uiout, ","); | |
6103 | else | |
6104 | ui_out_text (uiout, " "); | |
6105 | ui_out_text (uiout, b->extra_string); | |
6106 | } | |
6107 | } | |
6c95b8df | 6108 | |
b775012e LM |
6109 | if (loc && is_breakpoint (b) |
6110 | && breakpoint_condition_evaluation_mode () == condition_evaluation_target | |
6111 | && bp_condition_evaluator (b) == condition_evaluation_both) | |
6112 | { | |
6113 | ui_out_text (uiout, " ("); | |
6114 | ui_out_field_string (uiout, "evaluated-by", | |
6115 | bp_location_condition_evaluator (loc)); | |
6116 | ui_out_text (uiout, ")"); | |
6117 | } | |
6118 | ||
6c95b8df | 6119 | do_cleanups (old_chain); |
0d381245 VP |
6120 | } |
6121 | ||
269b11a2 PA |
6122 | static const char * |
6123 | bptype_string (enum bptype type) | |
c906108c | 6124 | { |
c4093a6a JM |
6125 | struct ep_type_description |
6126 | { | |
6127 | enum bptype type; | |
6128 | char *description; | |
6129 | }; | |
6130 | static struct ep_type_description bptypes[] = | |
c906108c | 6131 | { |
c5aa993b JM |
6132 | {bp_none, "?deleted?"}, |
6133 | {bp_breakpoint, "breakpoint"}, | |
c906108c | 6134 | {bp_hardware_breakpoint, "hw breakpoint"}, |
7c16b83e | 6135 | {bp_single_step, "sw single-step"}, |
c5aa993b JM |
6136 | {bp_until, "until"}, |
6137 | {bp_finish, "finish"}, | |
6138 | {bp_watchpoint, "watchpoint"}, | |
c906108c | 6139 | {bp_hardware_watchpoint, "hw watchpoint"}, |
c5aa993b JM |
6140 | {bp_read_watchpoint, "read watchpoint"}, |
6141 | {bp_access_watchpoint, "acc watchpoint"}, | |
6142 | {bp_longjmp, "longjmp"}, | |
6143 | {bp_longjmp_resume, "longjmp resume"}, | |
e2e4d78b | 6144 | {bp_longjmp_call_dummy, "longjmp for call dummy"}, |
186c406b TT |
6145 | {bp_exception, "exception"}, |
6146 | {bp_exception_resume, "exception resume"}, | |
c5aa993b | 6147 | {bp_step_resume, "step resume"}, |
2c03e5be | 6148 | {bp_hp_step_resume, "high-priority step resume"}, |
c5aa993b JM |
6149 | {bp_watchpoint_scope, "watchpoint scope"}, |
6150 | {bp_call_dummy, "call dummy"}, | |
aa7d318d | 6151 | {bp_std_terminate, "std::terminate"}, |
c5aa993b | 6152 | {bp_shlib_event, "shlib events"}, |
c4093a6a | 6153 | {bp_thread_event, "thread events"}, |
1900040c | 6154 | {bp_overlay_event, "overlay events"}, |
0fd8e87f | 6155 | {bp_longjmp_master, "longjmp master"}, |
aa7d318d | 6156 | {bp_std_terminate_master, "std::terminate master"}, |
186c406b | 6157 | {bp_exception_master, "exception master"}, |
ce78b96d | 6158 | {bp_catchpoint, "catchpoint"}, |
1042e4c0 | 6159 | {bp_tracepoint, "tracepoint"}, |
7a697b8d | 6160 | {bp_fast_tracepoint, "fast tracepoint"}, |
0fb4aa4b | 6161 | {bp_static_tracepoint, "static tracepoint"}, |
e7e0cddf | 6162 | {bp_dprintf, "dprintf"}, |
4efc6507 | 6163 | {bp_jit_event, "jit events"}, |
0e30163f JK |
6164 | {bp_gnu_ifunc_resolver, "STT_GNU_IFUNC resolver"}, |
6165 | {bp_gnu_ifunc_resolver_return, "STT_GNU_IFUNC resolver return"}, | |
c5aa993b | 6166 | }; |
269b11a2 PA |
6167 | |
6168 | if (((int) type >= (sizeof (bptypes) / sizeof (bptypes[0]))) | |
6169 | || ((int) type != bptypes[(int) type].type)) | |
6170 | internal_error (__FILE__, __LINE__, | |
6171 | _("bptypes table does not describe type #%d."), | |
6172 | (int) type); | |
6173 | ||
6174 | return bptypes[(int) type].description; | |
6175 | } | |
6176 | ||
998580f1 MK |
6177 | /* For MI, output a field named 'thread-groups' with a list as the value. |
6178 | For CLI, prefix the list with the string 'inf'. */ | |
6179 | ||
6180 | static void | |
6181 | output_thread_groups (struct ui_out *uiout, | |
6182 | const char *field_name, | |
6183 | VEC(int) *inf_num, | |
6184 | int mi_only) | |
6185 | { | |
752eb8b4 | 6186 | struct cleanup *back_to; |
998580f1 MK |
6187 | int is_mi = ui_out_is_mi_like_p (uiout); |
6188 | int inf; | |
6189 | int i; | |
6190 | ||
6191 | /* For backward compatibility, don't display inferiors in CLI unless | |
6192 | there are several. Always display them for MI. */ | |
6193 | if (!is_mi && mi_only) | |
6194 | return; | |
6195 | ||
752eb8b4 TT |
6196 | back_to = make_cleanup_ui_out_list_begin_end (uiout, field_name); |
6197 | ||
998580f1 MK |
6198 | for (i = 0; VEC_iterate (int, inf_num, i, inf); ++i) |
6199 | { | |
6200 | if (is_mi) | |
6201 | { | |
6202 | char mi_group[10]; | |
6203 | ||
6204 | xsnprintf (mi_group, sizeof (mi_group), "i%d", inf); | |
6205 | ui_out_field_string (uiout, NULL, mi_group); | |
6206 | } | |
6207 | else | |
6208 | { | |
6209 | if (i == 0) | |
6210 | ui_out_text (uiout, " inf "); | |
6211 | else | |
6212 | ui_out_text (uiout, ", "); | |
6213 | ||
6214 | ui_out_text (uiout, plongest (inf)); | |
6215 | } | |
6216 | } | |
6217 | ||
6218 | do_cleanups (back_to); | |
6219 | } | |
6220 | ||
269b11a2 PA |
6221 | /* Print B to gdb_stdout. */ |
6222 | ||
6223 | static void | |
6224 | print_one_breakpoint_location (struct breakpoint *b, | |
6225 | struct bp_location *loc, | |
6226 | int loc_number, | |
6227 | struct bp_location **last_loc, | |
269b11a2 PA |
6228 | int allflag) |
6229 | { | |
6230 | struct command_line *l; | |
c2c6d25f | 6231 | static char bpenables[] = "nynny"; |
c906108c | 6232 | |
79a45e25 | 6233 | struct ui_out *uiout = current_uiout; |
0d381245 VP |
6234 | int header_of_multiple = 0; |
6235 | int part_of_multiple = (loc != NULL); | |
79a45b7d TT |
6236 | struct value_print_options opts; |
6237 | ||
6238 | get_user_print_options (&opts); | |
0d381245 VP |
6239 | |
6240 | gdb_assert (!loc || loc_number != 0); | |
4a64f543 MS |
6241 | /* See comment in print_one_breakpoint concerning treatment of |
6242 | breakpoints with single disabled location. */ | |
0d381245 VP |
6243 | if (loc == NULL |
6244 | && (b->loc != NULL | |
6245 | && (b->loc->next != NULL || !b->loc->enabled))) | |
6246 | header_of_multiple = 1; | |
6247 | if (loc == NULL) | |
6248 | loc = b->loc; | |
6249 | ||
c4093a6a JM |
6250 | annotate_record (); |
6251 | ||
6252 | /* 1 */ | |
6253 | annotate_field (0); | |
0d381245 VP |
6254 | if (part_of_multiple) |
6255 | { | |
6256 | char *formatted; | |
0c6773c1 | 6257 | formatted = xstrprintf ("%d.%d", b->number, loc_number); |
0d381245 VP |
6258 | ui_out_field_string (uiout, "number", formatted); |
6259 | xfree (formatted); | |
6260 | } | |
6261 | else | |
6262 | { | |
6263 | ui_out_field_int (uiout, "number", b->number); | |
6264 | } | |
c4093a6a JM |
6265 | |
6266 | /* 2 */ | |
6267 | annotate_field (1); | |
0d381245 VP |
6268 | if (part_of_multiple) |
6269 | ui_out_field_skip (uiout, "type"); | |
269b11a2 PA |
6270 | else |
6271 | ui_out_field_string (uiout, "type", bptype_string (b->type)); | |
c4093a6a JM |
6272 | |
6273 | /* 3 */ | |
6274 | annotate_field (2); | |
0d381245 VP |
6275 | if (part_of_multiple) |
6276 | ui_out_field_skip (uiout, "disp"); | |
6277 | else | |
2cec12e5 | 6278 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); |
0d381245 | 6279 | |
c4093a6a JM |
6280 | |
6281 | /* 4 */ | |
6282 | annotate_field (3); | |
0d381245 | 6283 | if (part_of_multiple) |
54e52265 | 6284 | ui_out_field_string (uiout, "enabled", loc->enabled ? "y" : "n"); |
0d381245 | 6285 | else |
4a64f543 MS |
6286 | ui_out_field_fmt (uiout, "enabled", "%c", |
6287 | bpenables[(int) b->enable_state]); | |
54e52265 | 6288 | ui_out_spaces (uiout, 2); |
0d381245 | 6289 | |
c4093a6a JM |
6290 | |
6291 | /* 5 and 6 */ | |
3086aeae | 6292 | if (b->ops != NULL && b->ops->print_one != NULL) |
0d381245 | 6293 | { |
4a64f543 MS |
6294 | /* Although the print_one can possibly print all locations, |
6295 | calling it here is not likely to get any nice result. So, | |
6296 | make sure there's just one location. */ | |
0d381245 | 6297 | gdb_assert (b->loc == NULL || b->loc->next == NULL); |
a6d9a66e | 6298 | b->ops->print_one (b, last_loc); |
0d381245 | 6299 | } |
3086aeae DJ |
6300 | else |
6301 | switch (b->type) | |
6302 | { | |
6303 | case bp_none: | |
6304 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 6305 | _("print_one_breakpoint: bp_none encountered\n")); |
3086aeae | 6306 | break; |
c906108c | 6307 | |
3086aeae DJ |
6308 | case bp_watchpoint: |
6309 | case bp_hardware_watchpoint: | |
6310 | case bp_read_watchpoint: | |
6311 | case bp_access_watchpoint: | |
3a5c3e22 PA |
6312 | { |
6313 | struct watchpoint *w = (struct watchpoint *) b; | |
6314 | ||
6315 | /* Field 4, the address, is omitted (which makes the columns | |
6316 | not line up too nicely with the headers, but the effect | |
6317 | is relatively readable). */ | |
6318 | if (opts.addressprint) | |
6319 | ui_out_field_skip (uiout, "addr"); | |
6320 | annotate_field (5); | |
6321 | ui_out_field_string (uiout, "what", w->exp_string); | |
6322 | } | |
3086aeae DJ |
6323 | break; |
6324 | ||
3086aeae DJ |
6325 | case bp_breakpoint: |
6326 | case bp_hardware_breakpoint: | |
7c16b83e | 6327 | case bp_single_step: |
3086aeae DJ |
6328 | case bp_until: |
6329 | case bp_finish: | |
6330 | case bp_longjmp: | |
6331 | case bp_longjmp_resume: | |
e2e4d78b | 6332 | case bp_longjmp_call_dummy: |
186c406b TT |
6333 | case bp_exception: |
6334 | case bp_exception_resume: | |
3086aeae | 6335 | case bp_step_resume: |
2c03e5be | 6336 | case bp_hp_step_resume: |
3086aeae DJ |
6337 | case bp_watchpoint_scope: |
6338 | case bp_call_dummy: | |
aa7d318d | 6339 | case bp_std_terminate: |
3086aeae DJ |
6340 | case bp_shlib_event: |
6341 | case bp_thread_event: | |
6342 | case bp_overlay_event: | |
0fd8e87f | 6343 | case bp_longjmp_master: |
aa7d318d | 6344 | case bp_std_terminate_master: |
186c406b | 6345 | case bp_exception_master: |
1042e4c0 | 6346 | case bp_tracepoint: |
7a697b8d | 6347 | case bp_fast_tracepoint: |
0fb4aa4b | 6348 | case bp_static_tracepoint: |
e7e0cddf | 6349 | case bp_dprintf: |
4efc6507 | 6350 | case bp_jit_event: |
0e30163f JK |
6351 | case bp_gnu_ifunc_resolver: |
6352 | case bp_gnu_ifunc_resolver_return: | |
79a45b7d | 6353 | if (opts.addressprint) |
3086aeae DJ |
6354 | { |
6355 | annotate_field (4); | |
54e52265 | 6356 | if (header_of_multiple) |
0d381245 | 6357 | ui_out_field_string (uiout, "addr", "<MULTIPLE>"); |
e9bbd7c5 | 6358 | else if (b->loc == NULL || loc->shlib_disabled) |
54e52265 | 6359 | ui_out_field_string (uiout, "addr", "<PENDING>"); |
0101ce28 | 6360 | else |
5af949e3 UW |
6361 | ui_out_field_core_addr (uiout, "addr", |
6362 | loc->gdbarch, loc->address); | |
3086aeae DJ |
6363 | } |
6364 | annotate_field (5); | |
0d381245 | 6365 | if (!header_of_multiple) |
170b53b2 | 6366 | print_breakpoint_location (b, loc); |
0d381245 | 6367 | if (b->loc) |
a6d9a66e | 6368 | *last_loc = b->loc; |
3086aeae DJ |
6369 | break; |
6370 | } | |
c906108c | 6371 | |
6c95b8df | 6372 | |
998580f1 | 6373 | if (loc != NULL && !header_of_multiple) |
6c95b8df PA |
6374 | { |
6375 | struct inferior *inf; | |
998580f1 MK |
6376 | VEC(int) *inf_num = NULL; |
6377 | int mi_only = 1; | |
6c95b8df | 6378 | |
998580f1 | 6379 | ALL_INFERIORS (inf) |
6c95b8df PA |
6380 | { |
6381 | if (inf->pspace == loc->pspace) | |
998580f1 | 6382 | VEC_safe_push (int, inf_num, inf->num); |
6c95b8df | 6383 | } |
998580f1 MK |
6384 | |
6385 | /* For backward compatibility, don't display inferiors in CLI unless | |
6386 | there are several. Always display for MI. */ | |
6387 | if (allflag | |
6388 | || (!gdbarch_has_global_breakpoints (target_gdbarch ()) | |
6389 | && (number_of_program_spaces () > 1 | |
6390 | || number_of_inferiors () > 1) | |
6391 | /* LOC is for existing B, it cannot be in | |
6392 | moribund_locations and thus having NULL OWNER. */ | |
6393 | && loc->owner->type != bp_catchpoint)) | |
6394 | mi_only = 0; | |
6395 | output_thread_groups (uiout, "thread-groups", inf_num, mi_only); | |
6396 | VEC_free (int, inf_num); | |
6c95b8df PA |
6397 | } |
6398 | ||
4a306c9a | 6399 | if (!part_of_multiple) |
c4093a6a | 6400 | { |
4a306c9a JB |
6401 | if (b->thread != -1) |
6402 | { | |
6403 | /* FIXME: This seems to be redundant and lost here; see the | |
4a64f543 | 6404 | "stop only in" line a little further down. */ |
4a306c9a JB |
6405 | ui_out_text (uiout, " thread "); |
6406 | ui_out_field_int (uiout, "thread", b->thread); | |
6407 | } | |
6408 | else if (b->task != 0) | |
6409 | { | |
6410 | ui_out_text (uiout, " task "); | |
6411 | ui_out_field_int (uiout, "task", b->task); | |
6412 | } | |
c4093a6a | 6413 | } |
f1310107 | 6414 | |
8b93c638 | 6415 | ui_out_text (uiout, "\n"); |
f1310107 | 6416 | |
348d480f | 6417 | if (!part_of_multiple) |
f1310107 TJB |
6418 | b->ops->print_one_detail (b, uiout); |
6419 | ||
0d381245 | 6420 | if (part_of_multiple && frame_id_p (b->frame_id)) |
c4093a6a JM |
6421 | { |
6422 | annotate_field (6); | |
8b93c638 | 6423 | ui_out_text (uiout, "\tstop only in stack frame at "); |
e5dd4106 | 6424 | /* FIXME: cagney/2002-12-01: Shouldn't be poking around inside |
818dd999 | 6425 | the frame ID. */ |
5af949e3 UW |
6426 | ui_out_field_core_addr (uiout, "frame", |
6427 | b->gdbarch, b->frame_id.stack_addr); | |
8b93c638 | 6428 | ui_out_text (uiout, "\n"); |
c4093a6a JM |
6429 | } |
6430 | ||
28010a5d | 6431 | if (!part_of_multiple && b->cond_string) |
c4093a6a JM |
6432 | { |
6433 | annotate_field (7); | |
d77f58be | 6434 | if (is_tracepoint (b)) |
1042e4c0 SS |
6435 | ui_out_text (uiout, "\ttrace only if "); |
6436 | else | |
6437 | ui_out_text (uiout, "\tstop only if "); | |
0101ce28 | 6438 | ui_out_field_string (uiout, "cond", b->cond_string); |
b775012e LM |
6439 | |
6440 | /* Print whether the target is doing the breakpoint's condition | |
6441 | evaluation. If GDB is doing the evaluation, don't print anything. */ | |
6442 | if (is_breakpoint (b) | |
6443 | && breakpoint_condition_evaluation_mode () | |
6444 | == condition_evaluation_target) | |
6445 | { | |
6446 | ui_out_text (uiout, " ("); | |
6447 | ui_out_field_string (uiout, "evaluated-by", | |
6448 | bp_condition_evaluator (b)); | |
6449 | ui_out_text (uiout, " evals)"); | |
6450 | } | |
0101ce28 JJ |
6451 | ui_out_text (uiout, "\n"); |
6452 | } | |
6453 | ||
0d381245 | 6454 | if (!part_of_multiple && b->thread != -1) |
c4093a6a | 6455 | { |
4a64f543 | 6456 | /* FIXME should make an annotation for this. */ |
8b93c638 JM |
6457 | ui_out_text (uiout, "\tstop only in thread "); |
6458 | ui_out_field_int (uiout, "thread", b->thread); | |
6459 | ui_out_text (uiout, "\n"); | |
c4093a6a JM |
6460 | } |
6461 | ||
556ec64d YQ |
6462 | if (!part_of_multiple) |
6463 | { | |
6464 | if (b->hit_count) | |
31f56a27 YQ |
6465 | { |
6466 | /* FIXME should make an annotation for this. */ | |
6467 | if (is_catchpoint (b)) | |
6468 | ui_out_text (uiout, "\tcatchpoint"); | |
6469 | else if (is_tracepoint (b)) | |
6470 | ui_out_text (uiout, "\ttracepoint"); | |
6471 | else | |
6472 | ui_out_text (uiout, "\tbreakpoint"); | |
6473 | ui_out_text (uiout, " already hit "); | |
6474 | ui_out_field_int (uiout, "times", b->hit_count); | |
6475 | if (b->hit_count == 1) | |
6476 | ui_out_text (uiout, " time\n"); | |
6477 | else | |
6478 | ui_out_text (uiout, " times\n"); | |
6479 | } | |
556ec64d YQ |
6480 | else |
6481 | { | |
31f56a27 YQ |
6482 | /* Output the count also if it is zero, but only if this is mi. */ |
6483 | if (ui_out_is_mi_like_p (uiout)) | |
6484 | ui_out_field_int (uiout, "times", b->hit_count); | |
556ec64d YQ |
6485 | } |
6486 | } | |
8b93c638 | 6487 | |
0d381245 | 6488 | if (!part_of_multiple && b->ignore_count) |
c4093a6a JM |
6489 | { |
6490 | annotate_field (8); | |
8b93c638 JM |
6491 | ui_out_text (uiout, "\tignore next "); |
6492 | ui_out_field_int (uiout, "ignore", b->ignore_count); | |
6493 | ui_out_text (uiout, " hits\n"); | |
c4093a6a | 6494 | } |
059fb39f | 6495 | |
816338b5 SS |
6496 | /* Note that an enable count of 1 corresponds to "enable once" |
6497 | behavior, which is reported by the combination of enablement and | |
6498 | disposition, so we don't need to mention it here. */ | |
6499 | if (!part_of_multiple && b->enable_count > 1) | |
6500 | { | |
6501 | annotate_field (8); | |
6502 | ui_out_text (uiout, "\tdisable after "); | |
6503 | /* Tweak the wording to clarify that ignore and enable counts | |
6504 | are distinct, and have additive effect. */ | |
6505 | if (b->ignore_count) | |
6506 | ui_out_text (uiout, "additional "); | |
6507 | else | |
6508 | ui_out_text (uiout, "next "); | |
6509 | ui_out_field_int (uiout, "enable", b->enable_count); | |
6510 | ui_out_text (uiout, " hits\n"); | |
6511 | } | |
6512 | ||
f196051f SS |
6513 | if (!part_of_multiple && is_tracepoint (b)) |
6514 | { | |
6515 | struct tracepoint *tp = (struct tracepoint *) b; | |
6516 | ||
6517 | if (tp->traceframe_usage) | |
6518 | { | |
6519 | ui_out_text (uiout, "\ttrace buffer usage "); | |
6520 | ui_out_field_int (uiout, "traceframe-usage", tp->traceframe_usage); | |
6521 | ui_out_text (uiout, " bytes\n"); | |
6522 | } | |
6523 | } | |
d3ce09f5 | 6524 | |
9add0f1b | 6525 | l = b->commands ? b->commands->commands : NULL; |
059fb39f | 6526 | if (!part_of_multiple && l) |
c4093a6a | 6527 | { |
3b31d625 EZ |
6528 | struct cleanup *script_chain; |
6529 | ||
c4093a6a | 6530 | annotate_field (9); |
3b31d625 | 6531 | script_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "script"); |
8b93c638 | 6532 | print_command_lines (uiout, l, 4); |
3b31d625 | 6533 | do_cleanups (script_chain); |
c4093a6a | 6534 | } |
d24317b4 | 6535 | |
d9b3f62e | 6536 | if (is_tracepoint (b)) |
1042e4c0 | 6537 | { |
d9b3f62e PA |
6538 | struct tracepoint *t = (struct tracepoint *) b; |
6539 | ||
6540 | if (!part_of_multiple && t->pass_count) | |
6541 | { | |
6542 | annotate_field (10); | |
6543 | ui_out_text (uiout, "\tpass count "); | |
6544 | ui_out_field_int (uiout, "pass", t->pass_count); | |
6545 | ui_out_text (uiout, " \n"); | |
6546 | } | |
f2a8bc8a YQ |
6547 | |
6548 | /* Don't display it when tracepoint or tracepoint location is | |
6549 | pending. */ | |
6550 | if (!header_of_multiple && loc != NULL && !loc->shlib_disabled) | |
6551 | { | |
6552 | annotate_field (11); | |
6553 | ||
6554 | if (ui_out_is_mi_like_p (uiout)) | |
6555 | ui_out_field_string (uiout, "installed", | |
6556 | loc->inserted ? "y" : "n"); | |
6557 | else | |
6558 | { | |
6559 | if (loc->inserted) | |
6560 | ui_out_text (uiout, "\t"); | |
6561 | else | |
6562 | ui_out_text (uiout, "\tnot "); | |
6563 | ui_out_text (uiout, "installed on target\n"); | |
6564 | } | |
6565 | } | |
1042e4c0 SS |
6566 | } |
6567 | ||
d24317b4 VP |
6568 | if (ui_out_is_mi_like_p (uiout) && !part_of_multiple) |
6569 | { | |
3a5c3e22 PA |
6570 | if (is_watchpoint (b)) |
6571 | { | |
6572 | struct watchpoint *w = (struct watchpoint *) b; | |
6573 | ||
6574 | ui_out_field_string (uiout, "original-location", w->exp_string); | |
6575 | } | |
f00aae0f KS |
6576 | else if (b->location != NULL |
6577 | && event_location_to_string (b->location) != NULL) | |
6578 | ui_out_field_string (uiout, "original-location", | |
6579 | event_location_to_string (b->location)); | |
d24317b4 | 6580 | } |
c4093a6a | 6581 | } |
c5aa993b | 6582 | |
0d381245 VP |
6583 | static void |
6584 | print_one_breakpoint (struct breakpoint *b, | |
4a64f543 | 6585 | struct bp_location **last_loc, |
6c95b8df | 6586 | int allflag) |
0d381245 | 6587 | { |
8d3788bd | 6588 | struct cleanup *bkpt_chain; |
79a45e25 | 6589 | struct ui_out *uiout = current_uiout; |
8d3788bd VP |
6590 | |
6591 | bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "bkpt"); | |
6592 | ||
12c5a436 | 6593 | print_one_breakpoint_location (b, NULL, 0, last_loc, allflag); |
8d3788bd | 6594 | do_cleanups (bkpt_chain); |
0d381245 VP |
6595 | |
6596 | /* If this breakpoint has custom print function, | |
6597 | it's already printed. Otherwise, print individual | |
6598 | locations, if any. */ | |
6599 | if (b->ops == NULL || b->ops->print_one == NULL) | |
6600 | { | |
4a64f543 MS |
6601 | /* If breakpoint has a single location that is disabled, we |
6602 | print it as if it had several locations, since otherwise it's | |
6603 | hard to represent "breakpoint enabled, location disabled" | |
6604 | situation. | |
6605 | ||
6606 | Note that while hardware watchpoints have several locations | |
a3be7890 | 6607 | internally, that's not a property exposed to user. */ |
0d381245 | 6608 | if (b->loc |
a5606eee | 6609 | && !is_hardware_watchpoint (b) |
8d3788bd | 6610 | && (b->loc->next || !b->loc->enabled)) |
0d381245 VP |
6611 | { |
6612 | struct bp_location *loc; | |
6613 | int n = 1; | |
8d3788bd | 6614 | |
0d381245 | 6615 | for (loc = b->loc; loc; loc = loc->next, ++n) |
8d3788bd VP |
6616 | { |
6617 | struct cleanup *inner2 = | |
6618 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
6619 | print_one_breakpoint_location (b, loc, n, last_loc, allflag); | |
6620 | do_cleanups (inner2); | |
6621 | } | |
0d381245 VP |
6622 | } |
6623 | } | |
6624 | } | |
6625 | ||
a6d9a66e UW |
6626 | static int |
6627 | breakpoint_address_bits (struct breakpoint *b) | |
6628 | { | |
6629 | int print_address_bits = 0; | |
6630 | struct bp_location *loc; | |
6631 | ||
6632 | for (loc = b->loc; loc; loc = loc->next) | |
6633 | { | |
c7437ca6 PA |
6634 | int addr_bit; |
6635 | ||
6636 | /* Software watchpoints that aren't watching memory don't have | |
6637 | an address to print. */ | |
6638 | if (b->type == bp_watchpoint && loc->watchpoint_type == -1) | |
6639 | continue; | |
6640 | ||
6641 | addr_bit = gdbarch_addr_bit (loc->gdbarch); | |
a6d9a66e UW |
6642 | if (addr_bit > print_address_bits) |
6643 | print_address_bits = addr_bit; | |
6644 | } | |
6645 | ||
6646 | return print_address_bits; | |
6647 | } | |
0d381245 | 6648 | |
c4093a6a JM |
6649 | struct captured_breakpoint_query_args |
6650 | { | |
6651 | int bnum; | |
6652 | }; | |
c5aa993b | 6653 | |
c4093a6a | 6654 | static int |
2b65245e | 6655 | do_captured_breakpoint_query (struct ui_out *uiout, void *data) |
c4093a6a | 6656 | { |
9a3c8263 SM |
6657 | struct captured_breakpoint_query_args *args |
6658 | = (struct captured_breakpoint_query_args *) data; | |
52f0bd74 | 6659 | struct breakpoint *b; |
a6d9a66e | 6660 | struct bp_location *dummy_loc = NULL; |
cc59ec59 | 6661 | |
c4093a6a JM |
6662 | ALL_BREAKPOINTS (b) |
6663 | { | |
6664 | if (args->bnum == b->number) | |
c5aa993b | 6665 | { |
12c5a436 | 6666 | print_one_breakpoint (b, &dummy_loc, 0); |
c4093a6a | 6667 | return GDB_RC_OK; |
c5aa993b | 6668 | } |
c4093a6a JM |
6669 | } |
6670 | return GDB_RC_NONE; | |
6671 | } | |
c5aa993b | 6672 | |
c4093a6a | 6673 | enum gdb_rc |
4a64f543 MS |
6674 | gdb_breakpoint_query (struct ui_out *uiout, int bnum, |
6675 | char **error_message) | |
c4093a6a JM |
6676 | { |
6677 | struct captured_breakpoint_query_args args; | |
cc59ec59 | 6678 | |
c4093a6a JM |
6679 | args.bnum = bnum; |
6680 | /* For the moment we don't trust print_one_breakpoint() to not throw | |
4a64f543 | 6681 | an error. */ |
b0b13bb4 DJ |
6682 | if (catch_exceptions_with_msg (uiout, do_captured_breakpoint_query, &args, |
6683 | error_message, RETURN_MASK_ALL) < 0) | |
6684 | return GDB_RC_FAIL; | |
6685 | else | |
6686 | return GDB_RC_OK; | |
c4093a6a | 6687 | } |
c5aa993b | 6688 | |
09d682a4 TT |
6689 | /* Return true if this breakpoint was set by the user, false if it is |
6690 | internal or momentary. */ | |
6691 | ||
6692 | int | |
6693 | user_breakpoint_p (struct breakpoint *b) | |
6694 | { | |
46c6471b | 6695 | return b->number > 0; |
09d682a4 TT |
6696 | } |
6697 | ||
7f3b0473 | 6698 | /* Print information on user settable breakpoint (watchpoint, etc) |
d77f58be SS |
6699 | number BNUM. If BNUM is -1 print all user-settable breakpoints. |
6700 | If ALLFLAG is non-zero, include non-user-settable breakpoints. If | |
6701 | FILTER is non-NULL, call it on each breakpoint and only include the | |
6702 | ones for which it returns non-zero. Return the total number of | |
6703 | breakpoints listed. */ | |
c906108c | 6704 | |
d77f58be | 6705 | static int |
e5a67952 | 6706 | breakpoint_1 (char *args, int allflag, |
4a64f543 | 6707 | int (*filter) (const struct breakpoint *)) |
c4093a6a | 6708 | { |
52f0bd74 | 6709 | struct breakpoint *b; |
a6d9a66e | 6710 | struct bp_location *last_loc = NULL; |
7f3b0473 | 6711 | int nr_printable_breakpoints; |
3b31d625 | 6712 | struct cleanup *bkpttbl_chain; |
79a45b7d | 6713 | struct value_print_options opts; |
a6d9a66e | 6714 | int print_address_bits = 0; |
269b11a2 | 6715 | int print_type_col_width = 14; |
79a45e25 | 6716 | struct ui_out *uiout = current_uiout; |
269b11a2 | 6717 | |
79a45b7d TT |
6718 | get_user_print_options (&opts); |
6719 | ||
4a64f543 MS |
6720 | /* Compute the number of rows in the table, as well as the size |
6721 | required for address fields. */ | |
7f3b0473 AC |
6722 | nr_printable_breakpoints = 0; |
6723 | ALL_BREAKPOINTS (b) | |
e5a67952 MS |
6724 | { |
6725 | /* If we have a filter, only list the breakpoints it accepts. */ | |
6726 | if (filter && !filter (b)) | |
6727 | continue; | |
6728 | ||
6729 | /* If we have an "args" string, it is a list of breakpoints to | |
6730 | accept. Skip the others. */ | |
6731 | if (args != NULL && *args != '\0') | |
6732 | { | |
6733 | if (allflag && parse_and_eval_long (args) != b->number) | |
6734 | continue; | |
6735 | if (!allflag && !number_is_in_list (args, b->number)) | |
6736 | continue; | |
6737 | } | |
269b11a2 | 6738 | |
e5a67952 MS |
6739 | if (allflag || user_breakpoint_p (b)) |
6740 | { | |
6741 | int addr_bit, type_len; | |
a6d9a66e | 6742 | |
e5a67952 MS |
6743 | addr_bit = breakpoint_address_bits (b); |
6744 | if (addr_bit > print_address_bits) | |
6745 | print_address_bits = addr_bit; | |
269b11a2 | 6746 | |
e5a67952 MS |
6747 | type_len = strlen (bptype_string (b->type)); |
6748 | if (type_len > print_type_col_width) | |
6749 | print_type_col_width = type_len; | |
6750 | ||
6751 | nr_printable_breakpoints++; | |
6752 | } | |
6753 | } | |
7f3b0473 | 6754 | |
79a45b7d | 6755 | if (opts.addressprint) |
3b31d625 | 6756 | bkpttbl_chain |
3e43a32a MS |
6757 | = make_cleanup_ui_out_table_begin_end (uiout, 6, |
6758 | nr_printable_breakpoints, | |
3b31d625 | 6759 | "BreakpointTable"); |
8b93c638 | 6760 | else |
3b31d625 | 6761 | bkpttbl_chain |
3e43a32a MS |
6762 | = make_cleanup_ui_out_table_begin_end (uiout, 5, |
6763 | nr_printable_breakpoints, | |
3b31d625 | 6764 | "BreakpointTable"); |
8b93c638 | 6765 | |
7f3b0473 | 6766 | if (nr_printable_breakpoints > 0) |
d7faa9e7 AC |
6767 | annotate_breakpoints_headers (); |
6768 | if (nr_printable_breakpoints > 0) | |
6769 | annotate_field (0); | |
4a64f543 | 6770 | ui_out_table_header (uiout, 7, ui_left, "number", "Num"); /* 1 */ |
d7faa9e7 AC |
6771 | if (nr_printable_breakpoints > 0) |
6772 | annotate_field (1); | |
269b11a2 | 6773 | ui_out_table_header (uiout, print_type_col_width, ui_left, |
4a64f543 | 6774 | "type", "Type"); /* 2 */ |
d7faa9e7 AC |
6775 | if (nr_printable_breakpoints > 0) |
6776 | annotate_field (2); | |
4a64f543 | 6777 | ui_out_table_header (uiout, 4, ui_left, "disp", "Disp"); /* 3 */ |
d7faa9e7 AC |
6778 | if (nr_printable_breakpoints > 0) |
6779 | annotate_field (3); | |
54e52265 | 6780 | ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); /* 4 */ |
79a45b7d | 6781 | if (opts.addressprint) |
e5a67952 MS |
6782 | { |
6783 | if (nr_printable_breakpoints > 0) | |
6784 | annotate_field (4); | |
6785 | if (print_address_bits <= 32) | |
6786 | ui_out_table_header (uiout, 10, ui_left, | |
6787 | "addr", "Address"); /* 5 */ | |
6788 | else | |
6789 | ui_out_table_header (uiout, 18, ui_left, | |
6790 | "addr", "Address"); /* 5 */ | |
6791 | } | |
d7faa9e7 AC |
6792 | if (nr_printable_breakpoints > 0) |
6793 | annotate_field (5); | |
6794 | ui_out_table_header (uiout, 40, ui_noalign, "what", "What"); /* 6 */ | |
6795 | ui_out_table_body (uiout); | |
6796 | if (nr_printable_breakpoints > 0) | |
6797 | annotate_breakpoints_table (); | |
7f3b0473 | 6798 | |
c4093a6a | 6799 | ALL_BREAKPOINTS (b) |
e5a67952 MS |
6800 | { |
6801 | QUIT; | |
6802 | /* If we have a filter, only list the breakpoints it accepts. */ | |
6803 | if (filter && !filter (b)) | |
6804 | continue; | |
6805 | ||
6806 | /* If we have an "args" string, it is a list of breakpoints to | |
6807 | accept. Skip the others. */ | |
6808 | ||
6809 | if (args != NULL && *args != '\0') | |
6810 | { | |
6811 | if (allflag) /* maintenance info breakpoint */ | |
6812 | { | |
6813 | if (parse_and_eval_long (args) != b->number) | |
6814 | continue; | |
6815 | } | |
6816 | else /* all others */ | |
6817 | { | |
6818 | if (!number_is_in_list (args, b->number)) | |
6819 | continue; | |
6820 | } | |
6821 | } | |
6822 | /* We only print out user settable breakpoints unless the | |
6823 | allflag is set. */ | |
6824 | if (allflag || user_breakpoint_p (b)) | |
12c5a436 | 6825 | print_one_breakpoint (b, &last_loc, allflag); |
e5a67952 MS |
6826 | } |
6827 | ||
3b31d625 | 6828 | do_cleanups (bkpttbl_chain); |
698384cd | 6829 | |
7f3b0473 | 6830 | if (nr_printable_breakpoints == 0) |
c906108c | 6831 | { |
4a64f543 MS |
6832 | /* If there's a filter, let the caller decide how to report |
6833 | empty list. */ | |
d77f58be SS |
6834 | if (!filter) |
6835 | { | |
e5a67952 | 6836 | if (args == NULL || *args == '\0') |
d77f58be SS |
6837 | ui_out_message (uiout, 0, "No breakpoints or watchpoints.\n"); |
6838 | else | |
4a64f543 | 6839 | ui_out_message (uiout, 0, |
e5a67952 MS |
6840 | "No breakpoint or watchpoint matching '%s'.\n", |
6841 | args); | |
d77f58be | 6842 | } |
c906108c SS |
6843 | } |
6844 | else | |
c4093a6a | 6845 | { |
a6d9a66e UW |
6846 | if (last_loc && !server_command) |
6847 | set_next_address (last_loc->gdbarch, last_loc->address); | |
c4093a6a | 6848 | } |
c906108c | 6849 | |
4a64f543 | 6850 | /* FIXME? Should this be moved up so that it is only called when |
c4093a6a | 6851 | there have been breakpoints? */ |
c906108c | 6852 | annotate_breakpoints_table_end (); |
d77f58be SS |
6853 | |
6854 | return nr_printable_breakpoints; | |
c906108c SS |
6855 | } |
6856 | ||
ad443146 SS |
6857 | /* Display the value of default-collect in a way that is generally |
6858 | compatible with the breakpoint list. */ | |
6859 | ||
6860 | static void | |
6861 | default_collect_info (void) | |
6862 | { | |
79a45e25 PA |
6863 | struct ui_out *uiout = current_uiout; |
6864 | ||
ad443146 SS |
6865 | /* If it has no value (which is frequently the case), say nothing; a |
6866 | message like "No default-collect." gets in user's face when it's | |
6867 | not wanted. */ | |
6868 | if (!*default_collect) | |
6869 | return; | |
6870 | ||
6871 | /* The following phrase lines up nicely with per-tracepoint collect | |
6872 | actions. */ | |
6873 | ui_out_text (uiout, "default collect "); | |
6874 | ui_out_field_string (uiout, "default-collect", default_collect); | |
6875 | ui_out_text (uiout, " \n"); | |
6876 | } | |
6877 | ||
c906108c | 6878 | static void |
e5a67952 | 6879 | breakpoints_info (char *args, int from_tty) |
c906108c | 6880 | { |
e5a67952 | 6881 | breakpoint_1 (args, 0, NULL); |
ad443146 SS |
6882 | |
6883 | default_collect_info (); | |
d77f58be SS |
6884 | } |
6885 | ||
6886 | static void | |
e5a67952 | 6887 | watchpoints_info (char *args, int from_tty) |
d77f58be | 6888 | { |
e5a67952 | 6889 | int num_printed = breakpoint_1 (args, 0, is_watchpoint); |
79a45e25 | 6890 | struct ui_out *uiout = current_uiout; |
d77f58be SS |
6891 | |
6892 | if (num_printed == 0) | |
6893 | { | |
e5a67952 | 6894 | if (args == NULL || *args == '\0') |
d77f58be SS |
6895 | ui_out_message (uiout, 0, "No watchpoints.\n"); |
6896 | else | |
e5a67952 | 6897 | ui_out_message (uiout, 0, "No watchpoint matching '%s'.\n", args); |
d77f58be | 6898 | } |
c906108c SS |
6899 | } |
6900 | ||
7a292a7a | 6901 | static void |
e5a67952 | 6902 | maintenance_info_breakpoints (char *args, int from_tty) |
c906108c | 6903 | { |
e5a67952 | 6904 | breakpoint_1 (args, 1, NULL); |
ad443146 SS |
6905 | |
6906 | default_collect_info (); | |
c906108c SS |
6907 | } |
6908 | ||
0d381245 | 6909 | static int |
714835d5 | 6910 | breakpoint_has_pc (struct breakpoint *b, |
6c95b8df | 6911 | struct program_space *pspace, |
714835d5 | 6912 | CORE_ADDR pc, struct obj_section *section) |
0d381245 VP |
6913 | { |
6914 | struct bp_location *bl = b->loc; | |
cc59ec59 | 6915 | |
0d381245 VP |
6916 | for (; bl; bl = bl->next) |
6917 | { | |
6c95b8df PA |
6918 | if (bl->pspace == pspace |
6919 | && bl->address == pc | |
0d381245 VP |
6920 | && (!overlay_debugging || bl->section == section)) |
6921 | return 1; | |
6922 | } | |
6923 | return 0; | |
6924 | } | |
6925 | ||
672f9b60 | 6926 | /* Print a message describing any user-breakpoints set at PC. This |
6c95b8df PA |
6927 | concerns with logical breakpoints, so we match program spaces, not |
6928 | address spaces. */ | |
c906108c SS |
6929 | |
6930 | static void | |
6c95b8df PA |
6931 | describe_other_breakpoints (struct gdbarch *gdbarch, |
6932 | struct program_space *pspace, CORE_ADDR pc, | |
5af949e3 | 6933 | struct obj_section *section, int thread) |
c906108c | 6934 | { |
52f0bd74 AC |
6935 | int others = 0; |
6936 | struct breakpoint *b; | |
c906108c SS |
6937 | |
6938 | ALL_BREAKPOINTS (b) | |
672f9b60 KP |
6939 | others += (user_breakpoint_p (b) |
6940 | && breakpoint_has_pc (b, pspace, pc, section)); | |
c906108c SS |
6941 | if (others > 0) |
6942 | { | |
a3f17187 AC |
6943 | if (others == 1) |
6944 | printf_filtered (_("Note: breakpoint ")); | |
6945 | else /* if (others == ???) */ | |
6946 | printf_filtered (_("Note: breakpoints ")); | |
c906108c | 6947 | ALL_BREAKPOINTS (b) |
672f9b60 | 6948 | if (user_breakpoint_p (b) && breakpoint_has_pc (b, pspace, pc, section)) |
0d381245 VP |
6949 | { |
6950 | others--; | |
6951 | printf_filtered ("%d", b->number); | |
6952 | if (b->thread == -1 && thread != -1) | |
6953 | printf_filtered (" (all threads)"); | |
6954 | else if (b->thread != -1) | |
6955 | printf_filtered (" (thread %d)", b->thread); | |
6956 | printf_filtered ("%s%s ", | |
059fb39f | 6957 | ((b->enable_state == bp_disabled |
f8eba3c6 | 6958 | || b->enable_state == bp_call_disabled) |
0d381245 | 6959 | ? " (disabled)" |
0d381245 VP |
6960 | : ""), |
6961 | (others > 1) ? "," | |
6962 | : ((others == 1) ? " and" : "")); | |
6963 | } | |
a3f17187 | 6964 | printf_filtered (_("also set at pc ")); |
5af949e3 | 6965 | fputs_filtered (paddress (gdbarch, pc), gdb_stdout); |
c906108c SS |
6966 | printf_filtered (".\n"); |
6967 | } | |
6968 | } | |
6969 | \f | |
c906108c | 6970 | |
e4f237da | 6971 | /* Return true iff it is meaningful to use the address member of |
244558af LM |
6972 | BPT locations. For some breakpoint types, the locations' address members |
6973 | are irrelevant and it makes no sense to attempt to compare them to other | |
6974 | addresses (or use them for any other purpose either). | |
e4f237da | 6975 | |
4a64f543 | 6976 | More specifically, each of the following breakpoint types will |
244558af | 6977 | always have a zero valued location address and we don't want to mark |
4a64f543 | 6978 | breakpoints of any of these types to be a duplicate of an actual |
244558af | 6979 | breakpoint location at address zero: |
e4f237da KB |
6980 | |
6981 | bp_watchpoint | |
2d134ed3 PA |
6982 | bp_catchpoint |
6983 | ||
6984 | */ | |
e4f237da KB |
6985 | |
6986 | static int | |
6987 | breakpoint_address_is_meaningful (struct breakpoint *bpt) | |
6988 | { | |
6989 | enum bptype type = bpt->type; | |
6990 | ||
2d134ed3 PA |
6991 | return (type != bp_watchpoint && type != bp_catchpoint); |
6992 | } | |
6993 | ||
6994 | /* Assuming LOC1 and LOC2's owners are hardware watchpoints, returns | |
6995 | true if LOC1 and LOC2 represent the same watchpoint location. */ | |
6996 | ||
6997 | static int | |
4a64f543 MS |
6998 | watchpoint_locations_match (struct bp_location *loc1, |
6999 | struct bp_location *loc2) | |
2d134ed3 | 7000 | { |
3a5c3e22 PA |
7001 | struct watchpoint *w1 = (struct watchpoint *) loc1->owner; |
7002 | struct watchpoint *w2 = (struct watchpoint *) loc2->owner; | |
7003 | ||
7004 | /* Both of them must exist. */ | |
7005 | gdb_assert (w1 != NULL); | |
7006 | gdb_assert (w2 != NULL); | |
2bdf28a0 | 7007 | |
4a64f543 MS |
7008 | /* If the target can evaluate the condition expression in hardware, |
7009 | then we we need to insert both watchpoints even if they are at | |
7010 | the same place. Otherwise the watchpoint will only trigger when | |
7011 | the condition of whichever watchpoint was inserted evaluates to | |
7012 | true, not giving a chance for GDB to check the condition of the | |
7013 | other watchpoint. */ | |
3a5c3e22 | 7014 | if ((w1->cond_exp |
4a64f543 MS |
7015 | && target_can_accel_watchpoint_condition (loc1->address, |
7016 | loc1->length, | |
0cf6dd15 | 7017 | loc1->watchpoint_type, |
3a5c3e22 PA |
7018 | w1->cond_exp)) |
7019 | || (w2->cond_exp | |
4a64f543 MS |
7020 | && target_can_accel_watchpoint_condition (loc2->address, |
7021 | loc2->length, | |
0cf6dd15 | 7022 | loc2->watchpoint_type, |
3a5c3e22 | 7023 | w2->cond_exp))) |
0cf6dd15 TJB |
7024 | return 0; |
7025 | ||
85d721b8 PA |
7026 | /* Note that this checks the owner's type, not the location's. In |
7027 | case the target does not support read watchpoints, but does | |
7028 | support access watchpoints, we'll have bp_read_watchpoint | |
7029 | watchpoints with hw_access locations. Those should be considered | |
7030 | duplicates of hw_read locations. The hw_read locations will | |
7031 | become hw_access locations later. */ | |
2d134ed3 PA |
7032 | return (loc1->owner->type == loc2->owner->type |
7033 | && loc1->pspace->aspace == loc2->pspace->aspace | |
7034 | && loc1->address == loc2->address | |
7035 | && loc1->length == loc2->length); | |
e4f237da KB |
7036 | } |
7037 | ||
31e77af2 | 7038 | /* See breakpoint.h. */ |
6c95b8df | 7039 | |
31e77af2 | 7040 | int |
6c95b8df PA |
7041 | breakpoint_address_match (struct address_space *aspace1, CORE_ADDR addr1, |
7042 | struct address_space *aspace2, CORE_ADDR addr2) | |
7043 | { | |
f5656ead | 7044 | return ((gdbarch_has_global_breakpoints (target_gdbarch ()) |
6c95b8df PA |
7045 | || aspace1 == aspace2) |
7046 | && addr1 == addr2); | |
7047 | } | |
7048 | ||
f1310107 TJB |
7049 | /* Returns true if {ASPACE2,ADDR2} falls within the range determined by |
7050 | {ASPACE1,ADDR1,LEN1}. In most targets, this can only be true if ASPACE1 | |
7051 | matches ASPACE2. On targets that have global breakpoints, the address | |
7052 | space doesn't really matter. */ | |
7053 | ||
7054 | static int | |
7055 | breakpoint_address_match_range (struct address_space *aspace1, CORE_ADDR addr1, | |
7056 | int len1, struct address_space *aspace2, | |
7057 | CORE_ADDR addr2) | |
7058 | { | |
f5656ead | 7059 | return ((gdbarch_has_global_breakpoints (target_gdbarch ()) |
f1310107 TJB |
7060 | || aspace1 == aspace2) |
7061 | && addr2 >= addr1 && addr2 < addr1 + len1); | |
7062 | } | |
7063 | ||
7064 | /* Returns true if {ASPACE,ADDR} matches the breakpoint BL. BL may be | |
7065 | a ranged breakpoint. In most targets, a match happens only if ASPACE | |
7066 | matches the breakpoint's address space. On targets that have global | |
7067 | breakpoints, the address space doesn't really matter. */ | |
7068 | ||
7069 | static int | |
7070 | breakpoint_location_address_match (struct bp_location *bl, | |
7071 | struct address_space *aspace, | |
7072 | CORE_ADDR addr) | |
7073 | { | |
7074 | return (breakpoint_address_match (bl->pspace->aspace, bl->address, | |
7075 | aspace, addr) | |
7076 | || (bl->length | |
7077 | && breakpoint_address_match_range (bl->pspace->aspace, | |
7078 | bl->address, bl->length, | |
7079 | aspace, addr))); | |
7080 | } | |
7081 | ||
1e4d1764 YQ |
7082 | /* If LOC1 and LOC2's owners are not tracepoints, returns false directly. |
7083 | Then, if LOC1 and LOC2 represent the same tracepoint location, returns | |
7084 | true, otherwise returns false. */ | |
7085 | ||
7086 | static int | |
7087 | tracepoint_locations_match (struct bp_location *loc1, | |
7088 | struct bp_location *loc2) | |
7089 | { | |
7090 | if (is_tracepoint (loc1->owner) && is_tracepoint (loc2->owner)) | |
7091 | /* Since tracepoint locations are never duplicated with others', tracepoint | |
7092 | locations at the same address of different tracepoints are regarded as | |
7093 | different locations. */ | |
7094 | return (loc1->address == loc2->address && loc1->owner == loc2->owner); | |
7095 | else | |
7096 | return 0; | |
7097 | } | |
7098 | ||
2d134ed3 PA |
7099 | /* Assuming LOC1 and LOC2's types' have meaningful target addresses |
7100 | (breakpoint_address_is_meaningful), returns true if LOC1 and LOC2 | |
7101 | represent the same location. */ | |
7102 | ||
7103 | static int | |
4a64f543 MS |
7104 | breakpoint_locations_match (struct bp_location *loc1, |
7105 | struct bp_location *loc2) | |
2d134ed3 | 7106 | { |
2bdf28a0 JK |
7107 | int hw_point1, hw_point2; |
7108 | ||
7109 | /* Both of them must not be in moribund_locations. */ | |
7110 | gdb_assert (loc1->owner != NULL); | |
7111 | gdb_assert (loc2->owner != NULL); | |
7112 | ||
7113 | hw_point1 = is_hardware_watchpoint (loc1->owner); | |
7114 | hw_point2 = is_hardware_watchpoint (loc2->owner); | |
2d134ed3 PA |
7115 | |
7116 | if (hw_point1 != hw_point2) | |
7117 | return 0; | |
7118 | else if (hw_point1) | |
7119 | return watchpoint_locations_match (loc1, loc2); | |
1e4d1764 YQ |
7120 | else if (is_tracepoint (loc1->owner) || is_tracepoint (loc2->owner)) |
7121 | return tracepoint_locations_match (loc1, loc2); | |
2d134ed3 | 7122 | else |
f1310107 TJB |
7123 | /* We compare bp_location.length in order to cover ranged breakpoints. */ |
7124 | return (breakpoint_address_match (loc1->pspace->aspace, loc1->address, | |
7125 | loc2->pspace->aspace, loc2->address) | |
7126 | && loc1->length == loc2->length); | |
2d134ed3 PA |
7127 | } |
7128 | ||
76897487 KB |
7129 | static void |
7130 | breakpoint_adjustment_warning (CORE_ADDR from_addr, CORE_ADDR to_addr, | |
7131 | int bnum, int have_bnum) | |
7132 | { | |
f63fbe86 MS |
7133 | /* The longest string possibly returned by hex_string_custom |
7134 | is 50 chars. These must be at least that big for safety. */ | |
7135 | char astr1[64]; | |
7136 | char astr2[64]; | |
76897487 | 7137 | |
bb599908 PH |
7138 | strcpy (astr1, hex_string_custom ((unsigned long) from_addr, 8)); |
7139 | strcpy (astr2, hex_string_custom ((unsigned long) to_addr, 8)); | |
76897487 | 7140 | if (have_bnum) |
8a3fe4f8 | 7141 | warning (_("Breakpoint %d address previously adjusted from %s to %s."), |
76897487 KB |
7142 | bnum, astr1, astr2); |
7143 | else | |
8a3fe4f8 | 7144 | warning (_("Breakpoint address adjusted from %s to %s."), astr1, astr2); |
76897487 KB |
7145 | } |
7146 | ||
4a64f543 MS |
7147 | /* Adjust a breakpoint's address to account for architectural |
7148 | constraints on breakpoint placement. Return the adjusted address. | |
7149 | Note: Very few targets require this kind of adjustment. For most | |
7150 | targets, this function is simply the identity function. */ | |
76897487 KB |
7151 | |
7152 | static CORE_ADDR | |
a6d9a66e UW |
7153 | adjust_breakpoint_address (struct gdbarch *gdbarch, |
7154 | CORE_ADDR bpaddr, enum bptype bptype) | |
76897487 | 7155 | { |
a6d9a66e | 7156 | if (!gdbarch_adjust_breakpoint_address_p (gdbarch)) |
76897487 KB |
7157 | { |
7158 | /* Very few targets need any kind of breakpoint adjustment. */ | |
7159 | return bpaddr; | |
7160 | } | |
88f7da05 KB |
7161 | else if (bptype == bp_watchpoint |
7162 | || bptype == bp_hardware_watchpoint | |
7163 | || bptype == bp_read_watchpoint | |
7164 | || bptype == bp_access_watchpoint | |
fe798b75 | 7165 | || bptype == bp_catchpoint) |
88f7da05 KB |
7166 | { |
7167 | /* Watchpoints and the various bp_catch_* eventpoints should not | |
7168 | have their addresses modified. */ | |
7169 | return bpaddr; | |
7170 | } | |
7c16b83e PA |
7171 | else if (bptype == bp_single_step) |
7172 | { | |
7173 | /* Single-step breakpoints should not have their addresses | |
7174 | modified. If there's any architectural constrain that | |
7175 | applies to this address, then it should have already been | |
7176 | taken into account when the breakpoint was created in the | |
7177 | first place. If we didn't do this, stepping through e.g., | |
7178 | Thumb-2 IT blocks would break. */ | |
7179 | return bpaddr; | |
7180 | } | |
76897487 KB |
7181 | else |
7182 | { | |
7183 | CORE_ADDR adjusted_bpaddr; | |
7184 | ||
7185 | /* Some targets have architectural constraints on the placement | |
7186 | of breakpoint instructions. Obtain the adjusted address. */ | |
a6d9a66e | 7187 | adjusted_bpaddr = gdbarch_adjust_breakpoint_address (gdbarch, bpaddr); |
76897487 KB |
7188 | |
7189 | /* An adjusted breakpoint address can significantly alter | |
7190 | a user's expectations. Print a warning if an adjustment | |
7191 | is required. */ | |
7192 | if (adjusted_bpaddr != bpaddr) | |
7193 | breakpoint_adjustment_warning (bpaddr, adjusted_bpaddr, 0, 0); | |
7194 | ||
7195 | return adjusted_bpaddr; | |
7196 | } | |
7197 | } | |
7198 | ||
28010a5d PA |
7199 | void |
7200 | init_bp_location (struct bp_location *loc, const struct bp_location_ops *ops, | |
7201 | struct breakpoint *owner) | |
7cc221ef | 7202 | { |
7cc221ef DJ |
7203 | memset (loc, 0, sizeof (*loc)); |
7204 | ||
348d480f PA |
7205 | gdb_assert (ops != NULL); |
7206 | ||
28010a5d PA |
7207 | loc->ops = ops; |
7208 | loc->owner = owner; | |
511a6cd4 | 7209 | loc->cond = NULL; |
b775012e | 7210 | loc->cond_bytecode = NULL; |
0d381245 VP |
7211 | loc->shlib_disabled = 0; |
7212 | loc->enabled = 1; | |
e049a4b5 | 7213 | |
28010a5d | 7214 | switch (owner->type) |
e049a4b5 DJ |
7215 | { |
7216 | case bp_breakpoint: | |
7c16b83e | 7217 | case bp_single_step: |
e049a4b5 DJ |
7218 | case bp_until: |
7219 | case bp_finish: | |
7220 | case bp_longjmp: | |
7221 | case bp_longjmp_resume: | |
e2e4d78b | 7222 | case bp_longjmp_call_dummy: |
186c406b TT |
7223 | case bp_exception: |
7224 | case bp_exception_resume: | |
e049a4b5 | 7225 | case bp_step_resume: |
2c03e5be | 7226 | case bp_hp_step_resume: |
e049a4b5 DJ |
7227 | case bp_watchpoint_scope: |
7228 | case bp_call_dummy: | |
aa7d318d | 7229 | case bp_std_terminate: |
e049a4b5 DJ |
7230 | case bp_shlib_event: |
7231 | case bp_thread_event: | |
7232 | case bp_overlay_event: | |
4efc6507 | 7233 | case bp_jit_event: |
0fd8e87f | 7234 | case bp_longjmp_master: |
aa7d318d | 7235 | case bp_std_terminate_master: |
186c406b | 7236 | case bp_exception_master: |
0e30163f JK |
7237 | case bp_gnu_ifunc_resolver: |
7238 | case bp_gnu_ifunc_resolver_return: | |
e7e0cddf | 7239 | case bp_dprintf: |
e049a4b5 | 7240 | loc->loc_type = bp_loc_software_breakpoint; |
b775012e | 7241 | mark_breakpoint_location_modified (loc); |
e049a4b5 DJ |
7242 | break; |
7243 | case bp_hardware_breakpoint: | |
7244 | loc->loc_type = bp_loc_hardware_breakpoint; | |
b775012e | 7245 | mark_breakpoint_location_modified (loc); |
e049a4b5 DJ |
7246 | break; |
7247 | case bp_hardware_watchpoint: | |
7248 | case bp_read_watchpoint: | |
7249 | case bp_access_watchpoint: | |
7250 | loc->loc_type = bp_loc_hardware_watchpoint; | |
7251 | break; | |
7252 | case bp_watchpoint: | |
ce78b96d | 7253 | case bp_catchpoint: |
15c3d785 PA |
7254 | case bp_tracepoint: |
7255 | case bp_fast_tracepoint: | |
0fb4aa4b | 7256 | case bp_static_tracepoint: |
e049a4b5 DJ |
7257 | loc->loc_type = bp_loc_other; |
7258 | break; | |
7259 | default: | |
e2e0b3e5 | 7260 | internal_error (__FILE__, __LINE__, _("unknown breakpoint type")); |
e049a4b5 DJ |
7261 | } |
7262 | ||
f431efe5 | 7263 | loc->refc = 1; |
28010a5d PA |
7264 | } |
7265 | ||
7266 | /* Allocate a struct bp_location. */ | |
7267 | ||
7268 | static struct bp_location * | |
7269 | allocate_bp_location (struct breakpoint *bpt) | |
7270 | { | |
348d480f PA |
7271 | return bpt->ops->allocate_location (bpt); |
7272 | } | |
7cc221ef | 7273 | |
f431efe5 PA |
7274 | static void |
7275 | free_bp_location (struct bp_location *loc) | |
fe3f5fa8 | 7276 | { |
348d480f | 7277 | loc->ops->dtor (loc); |
fe3f5fa8 VP |
7278 | xfree (loc); |
7279 | } | |
7280 | ||
f431efe5 PA |
7281 | /* Increment reference count. */ |
7282 | ||
7283 | static void | |
7284 | incref_bp_location (struct bp_location *bl) | |
7285 | { | |
7286 | ++bl->refc; | |
7287 | } | |
7288 | ||
7289 | /* Decrement reference count. If the reference count reaches 0, | |
7290 | destroy the bp_location. Sets *BLP to NULL. */ | |
7291 | ||
7292 | static void | |
7293 | decref_bp_location (struct bp_location **blp) | |
7294 | { | |
0807b50c PA |
7295 | gdb_assert ((*blp)->refc > 0); |
7296 | ||
f431efe5 PA |
7297 | if (--(*blp)->refc == 0) |
7298 | free_bp_location (*blp); | |
7299 | *blp = NULL; | |
7300 | } | |
7301 | ||
346774a9 | 7302 | /* Add breakpoint B at the end of the global breakpoint chain. */ |
c906108c | 7303 | |
346774a9 PA |
7304 | static void |
7305 | add_to_breakpoint_chain (struct breakpoint *b) | |
c906108c | 7306 | { |
346774a9 | 7307 | struct breakpoint *b1; |
c906108c | 7308 | |
346774a9 PA |
7309 | /* Add this breakpoint to the end of the chain so that a list of |
7310 | breakpoints will come out in order of increasing numbers. */ | |
7311 | ||
7312 | b1 = breakpoint_chain; | |
7313 | if (b1 == 0) | |
7314 | breakpoint_chain = b; | |
7315 | else | |
7316 | { | |
7317 | while (b1->next) | |
7318 | b1 = b1->next; | |
7319 | b1->next = b; | |
7320 | } | |
7321 | } | |
7322 | ||
7323 | /* Initializes breakpoint B with type BPTYPE and no locations yet. */ | |
7324 | ||
7325 | static void | |
7326 | init_raw_breakpoint_without_location (struct breakpoint *b, | |
7327 | struct gdbarch *gdbarch, | |
28010a5d | 7328 | enum bptype bptype, |
c0a91b2b | 7329 | const struct breakpoint_ops *ops) |
346774a9 | 7330 | { |
c906108c | 7331 | memset (b, 0, sizeof (*b)); |
2219d63c | 7332 | |
348d480f PA |
7333 | gdb_assert (ops != NULL); |
7334 | ||
28010a5d | 7335 | b->ops = ops; |
4d28f7a8 | 7336 | b->type = bptype; |
a6d9a66e | 7337 | b->gdbarch = gdbarch; |
c906108c SS |
7338 | b->language = current_language->la_language; |
7339 | b->input_radix = input_radix; | |
7340 | b->thread = -1; | |
b5de0fa7 | 7341 | b->enable_state = bp_enabled; |
c906108c SS |
7342 | b->next = 0; |
7343 | b->silent = 0; | |
7344 | b->ignore_count = 0; | |
7345 | b->commands = NULL; | |
818dd999 | 7346 | b->frame_id = null_frame_id; |
0d381245 | 7347 | b->condition_not_parsed = 0; |
84f4c1fe | 7348 | b->py_bp_object = NULL; |
d0fb5eae | 7349 | b->related_breakpoint = b; |
f00aae0f | 7350 | b->location = NULL; |
346774a9 PA |
7351 | } |
7352 | ||
7353 | /* Helper to set_raw_breakpoint below. Creates a breakpoint | |
7354 | that has type BPTYPE and has no locations as yet. */ | |
346774a9 PA |
7355 | |
7356 | static struct breakpoint * | |
7357 | set_raw_breakpoint_without_location (struct gdbarch *gdbarch, | |
348d480f | 7358 | enum bptype bptype, |
c0a91b2b | 7359 | const struct breakpoint_ops *ops) |
346774a9 PA |
7360 | { |
7361 | struct breakpoint *b = XNEW (struct breakpoint); | |
7362 | ||
348d480f | 7363 | init_raw_breakpoint_without_location (b, gdbarch, bptype, ops); |
c56053d2 | 7364 | add_to_breakpoint_chain (b); |
0d381245 VP |
7365 | return b; |
7366 | } | |
7367 | ||
0e30163f JK |
7368 | /* Initialize loc->function_name. EXPLICIT_LOC says no indirect function |
7369 | resolutions should be made as the user specified the location explicitly | |
7370 | enough. */ | |
7371 | ||
0d381245 | 7372 | static void |
0e30163f | 7373 | set_breakpoint_location_function (struct bp_location *loc, int explicit_loc) |
0d381245 | 7374 | { |
2bdf28a0 JK |
7375 | gdb_assert (loc->owner != NULL); |
7376 | ||
0d381245 | 7377 | if (loc->owner->type == bp_breakpoint |
1042e4c0 | 7378 | || loc->owner->type == bp_hardware_breakpoint |
d77f58be | 7379 | || is_tracepoint (loc->owner)) |
0d381245 | 7380 | { |
0e30163f | 7381 | int is_gnu_ifunc; |
2c02bd72 | 7382 | const char *function_name; |
6a3a010b | 7383 | CORE_ADDR func_addr; |
0e30163f | 7384 | |
2c02bd72 | 7385 | find_pc_partial_function_gnu_ifunc (loc->address, &function_name, |
6a3a010b | 7386 | &func_addr, NULL, &is_gnu_ifunc); |
0e30163f JK |
7387 | |
7388 | if (is_gnu_ifunc && !explicit_loc) | |
7389 | { | |
7390 | struct breakpoint *b = loc->owner; | |
7391 | ||
7392 | gdb_assert (loc->pspace == current_program_space); | |
2c02bd72 | 7393 | if (gnu_ifunc_resolve_name (function_name, |
0e30163f JK |
7394 | &loc->requested_address)) |
7395 | { | |
7396 | /* Recalculate ADDRESS based on new REQUESTED_ADDRESS. */ | |
7397 | loc->address = adjust_breakpoint_address (loc->gdbarch, | |
7398 | loc->requested_address, | |
7399 | b->type); | |
7400 | } | |
7401 | else if (b->type == bp_breakpoint && b->loc == loc | |
7402 | && loc->next == NULL && b->related_breakpoint == b) | |
7403 | { | |
7404 | /* Create only the whole new breakpoint of this type but do not | |
7405 | mess more complicated breakpoints with multiple locations. */ | |
7406 | b->type = bp_gnu_ifunc_resolver; | |
6a3a010b MR |
7407 | /* Remember the resolver's address for use by the return |
7408 | breakpoint. */ | |
7409 | loc->related_address = func_addr; | |
0e30163f JK |
7410 | } |
7411 | } | |
7412 | ||
2c02bd72 DE |
7413 | if (function_name) |
7414 | loc->function_name = xstrdup (function_name); | |
0d381245 VP |
7415 | } |
7416 | } | |
7417 | ||
a6d9a66e | 7418 | /* Attempt to determine architecture of location identified by SAL. */ |
1bfeeb0f | 7419 | struct gdbarch * |
a6d9a66e UW |
7420 | get_sal_arch (struct symtab_and_line sal) |
7421 | { | |
7422 | if (sal.section) | |
7423 | return get_objfile_arch (sal.section->objfile); | |
7424 | if (sal.symtab) | |
eb822aa6 | 7425 | return get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); |
a6d9a66e UW |
7426 | |
7427 | return NULL; | |
7428 | } | |
7429 | ||
346774a9 PA |
7430 | /* Low level routine for partially initializing a breakpoint of type |
7431 | BPTYPE. The newly created breakpoint's address, section, source | |
c56053d2 | 7432 | file name, and line number are provided by SAL. |
0d381245 VP |
7433 | |
7434 | It is expected that the caller will complete the initialization of | |
7435 | the newly created breakpoint struct as well as output any status | |
c56053d2 | 7436 | information regarding the creation of a new breakpoint. */ |
0d381245 | 7437 | |
346774a9 PA |
7438 | static void |
7439 | init_raw_breakpoint (struct breakpoint *b, struct gdbarch *gdbarch, | |
28010a5d | 7440 | struct symtab_and_line sal, enum bptype bptype, |
c0a91b2b | 7441 | const struct breakpoint_ops *ops) |
0d381245 | 7442 | { |
28010a5d | 7443 | init_raw_breakpoint_without_location (b, gdbarch, bptype, ops); |
346774a9 | 7444 | |
3742cc8b | 7445 | add_location_to_breakpoint (b, &sal); |
0d381245 | 7446 | |
6c95b8df PA |
7447 | if (bptype != bp_catchpoint) |
7448 | gdb_assert (sal.pspace != NULL); | |
7449 | ||
f8eba3c6 TT |
7450 | /* Store the program space that was used to set the breakpoint, |
7451 | except for ordinary breakpoints, which are independent of the | |
7452 | program space. */ | |
7453 | if (bptype != bp_breakpoint && bptype != bp_hardware_breakpoint) | |
7454 | b->pspace = sal.pspace; | |
346774a9 | 7455 | } |
c906108c | 7456 | |
346774a9 PA |
7457 | /* set_raw_breakpoint is a low level routine for allocating and |
7458 | partially initializing a breakpoint of type BPTYPE. The newly | |
7459 | created breakpoint's address, section, source file name, and line | |
7460 | number are provided by SAL. The newly created and partially | |
7461 | initialized breakpoint is added to the breakpoint chain and | |
7462 | is also returned as the value of this function. | |
7463 | ||
7464 | It is expected that the caller will complete the initialization of | |
7465 | the newly created breakpoint struct as well as output any status | |
7466 | information regarding the creation of a new breakpoint. In | |
7467 | particular, set_raw_breakpoint does NOT set the breakpoint | |
7468 | number! Care should be taken to not allow an error to occur | |
7469 | prior to completing the initialization of the breakpoint. If this | |
7470 | should happen, a bogus breakpoint will be left on the chain. */ | |
7471 | ||
7472 | struct breakpoint * | |
7473 | set_raw_breakpoint (struct gdbarch *gdbarch, | |
348d480f | 7474 | struct symtab_and_line sal, enum bptype bptype, |
c0a91b2b | 7475 | const struct breakpoint_ops *ops) |
346774a9 PA |
7476 | { |
7477 | struct breakpoint *b = XNEW (struct breakpoint); | |
7478 | ||
348d480f | 7479 | init_raw_breakpoint (b, gdbarch, sal, bptype, ops); |
c56053d2 | 7480 | add_to_breakpoint_chain (b); |
c906108c SS |
7481 | return b; |
7482 | } | |
7483 | ||
53a5351d | 7484 | /* Call this routine when stepping and nexting to enable a breakpoint |
186c406b TT |
7485 | if we do a longjmp() or 'throw' in TP. FRAME is the frame which |
7486 | initiated the operation. */ | |
c906108c SS |
7487 | |
7488 | void | |
186c406b | 7489 | set_longjmp_breakpoint (struct thread_info *tp, struct frame_id frame) |
c906108c | 7490 | { |
35df4500 | 7491 | struct breakpoint *b, *b_tmp; |
186c406b | 7492 | int thread = tp->num; |
0fd8e87f UW |
7493 | |
7494 | /* To avoid having to rescan all objfile symbols at every step, | |
7495 | we maintain a list of continually-inserted but always disabled | |
7496 | longjmp "master" breakpoints. Here, we simply create momentary | |
7497 | clones of those and enable them for the requested thread. */ | |
35df4500 | 7498 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
6c95b8df | 7499 | if (b->pspace == current_program_space |
186c406b TT |
7500 | && (b->type == bp_longjmp_master |
7501 | || b->type == bp_exception_master)) | |
0fd8e87f | 7502 | { |
06edf0c0 PA |
7503 | enum bptype type = b->type == bp_longjmp_master ? bp_longjmp : bp_exception; |
7504 | struct breakpoint *clone; | |
cc59ec59 | 7505 | |
e2e4d78b JK |
7506 | /* longjmp_breakpoint_ops ensures INITIATING_FRAME is cleared again |
7507 | after their removal. */ | |
06edf0c0 | 7508 | clone = momentary_breakpoint_from_master (b, type, |
a1aa2221 | 7509 | &longjmp_breakpoint_ops, 1); |
0fd8e87f UW |
7510 | clone->thread = thread; |
7511 | } | |
186c406b TT |
7512 | |
7513 | tp->initiating_frame = frame; | |
c906108c SS |
7514 | } |
7515 | ||
611c83ae | 7516 | /* Delete all longjmp breakpoints from THREAD. */ |
c906108c | 7517 | void |
611c83ae | 7518 | delete_longjmp_breakpoint (int thread) |
c906108c | 7519 | { |
35df4500 | 7520 | struct breakpoint *b, *b_tmp; |
c906108c | 7521 | |
35df4500 | 7522 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
186c406b | 7523 | if (b->type == bp_longjmp || b->type == bp_exception) |
611c83ae PA |
7524 | { |
7525 | if (b->thread == thread) | |
7526 | delete_breakpoint (b); | |
7527 | } | |
c906108c SS |
7528 | } |
7529 | ||
f59f708a PA |
7530 | void |
7531 | delete_longjmp_breakpoint_at_next_stop (int thread) | |
7532 | { | |
7533 | struct breakpoint *b, *b_tmp; | |
7534 | ||
7535 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
7536 | if (b->type == bp_longjmp || b->type == bp_exception) | |
7537 | { | |
7538 | if (b->thread == thread) | |
7539 | b->disposition = disp_del_at_next_stop; | |
7540 | } | |
7541 | } | |
7542 | ||
e2e4d78b JK |
7543 | /* Place breakpoints of type bp_longjmp_call_dummy to catch longjmp for |
7544 | INFERIOR_PTID thread. Chain them all by RELATED_BREAKPOINT and return | |
7545 | pointer to any of them. Return NULL if this system cannot place longjmp | |
7546 | breakpoints. */ | |
7547 | ||
7548 | struct breakpoint * | |
7549 | set_longjmp_breakpoint_for_call_dummy (void) | |
7550 | { | |
7551 | struct breakpoint *b, *retval = NULL; | |
7552 | ||
7553 | ALL_BREAKPOINTS (b) | |
7554 | if (b->pspace == current_program_space && b->type == bp_longjmp_master) | |
7555 | { | |
7556 | struct breakpoint *new_b; | |
7557 | ||
7558 | new_b = momentary_breakpoint_from_master (b, bp_longjmp_call_dummy, | |
a1aa2221 LM |
7559 | &momentary_breakpoint_ops, |
7560 | 1); | |
e2e4d78b JK |
7561 | new_b->thread = pid_to_thread_id (inferior_ptid); |
7562 | ||
7563 | /* Link NEW_B into the chain of RETVAL breakpoints. */ | |
7564 | ||
7565 | gdb_assert (new_b->related_breakpoint == new_b); | |
7566 | if (retval == NULL) | |
7567 | retval = new_b; | |
7568 | new_b->related_breakpoint = retval; | |
7569 | while (retval->related_breakpoint != new_b->related_breakpoint) | |
7570 | retval = retval->related_breakpoint; | |
7571 | retval->related_breakpoint = new_b; | |
7572 | } | |
7573 | ||
7574 | return retval; | |
7575 | } | |
7576 | ||
7577 | /* Verify all existing dummy frames and their associated breakpoints for | |
b67a2c6f | 7578 | TP. Remove those which can no longer be found in the current frame |
e2e4d78b JK |
7579 | stack. |
7580 | ||
7581 | You should call this function only at places where it is safe to currently | |
7582 | unwind the whole stack. Failed stack unwind would discard live dummy | |
7583 | frames. */ | |
7584 | ||
7585 | void | |
b67a2c6f | 7586 | check_longjmp_breakpoint_for_call_dummy (struct thread_info *tp) |
e2e4d78b JK |
7587 | { |
7588 | struct breakpoint *b, *b_tmp; | |
7589 | ||
7590 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
b67a2c6f | 7591 | if (b->type == bp_longjmp_call_dummy && b->thread == tp->num) |
e2e4d78b JK |
7592 | { |
7593 | struct breakpoint *dummy_b = b->related_breakpoint; | |
7594 | ||
7595 | while (dummy_b != b && dummy_b->type != bp_call_dummy) | |
7596 | dummy_b = dummy_b->related_breakpoint; | |
7597 | if (dummy_b->type != bp_call_dummy | |
7598 | || frame_find_by_id (dummy_b->frame_id) != NULL) | |
7599 | continue; | |
7600 | ||
b67a2c6f | 7601 | dummy_frame_discard (dummy_b->frame_id, tp->ptid); |
e2e4d78b JK |
7602 | |
7603 | while (b->related_breakpoint != b) | |
7604 | { | |
7605 | if (b_tmp == b->related_breakpoint) | |
7606 | b_tmp = b->related_breakpoint->next; | |
7607 | delete_breakpoint (b->related_breakpoint); | |
7608 | } | |
7609 | delete_breakpoint (b); | |
7610 | } | |
7611 | } | |
7612 | ||
1900040c MS |
7613 | void |
7614 | enable_overlay_breakpoints (void) | |
7615 | { | |
52f0bd74 | 7616 | struct breakpoint *b; |
1900040c MS |
7617 | |
7618 | ALL_BREAKPOINTS (b) | |
7619 | if (b->type == bp_overlay_event) | |
7620 | { | |
7621 | b->enable_state = bp_enabled; | |
44702360 | 7622 | update_global_location_list (UGLL_MAY_INSERT); |
c02f5703 | 7623 | overlay_events_enabled = 1; |
1900040c MS |
7624 | } |
7625 | } | |
7626 | ||
7627 | void | |
7628 | disable_overlay_breakpoints (void) | |
7629 | { | |
52f0bd74 | 7630 | struct breakpoint *b; |
1900040c MS |
7631 | |
7632 | ALL_BREAKPOINTS (b) | |
7633 | if (b->type == bp_overlay_event) | |
7634 | { | |
7635 | b->enable_state = bp_disabled; | |
44702360 | 7636 | update_global_location_list (UGLL_DONT_INSERT); |
c02f5703 | 7637 | overlay_events_enabled = 0; |
1900040c MS |
7638 | } |
7639 | } | |
7640 | ||
aa7d318d TT |
7641 | /* Set an active std::terminate breakpoint for each std::terminate |
7642 | master breakpoint. */ | |
7643 | void | |
7644 | set_std_terminate_breakpoint (void) | |
7645 | { | |
35df4500 | 7646 | struct breakpoint *b, *b_tmp; |
aa7d318d | 7647 | |
35df4500 | 7648 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
aa7d318d TT |
7649 | if (b->pspace == current_program_space |
7650 | && b->type == bp_std_terminate_master) | |
7651 | { | |
06edf0c0 | 7652 | momentary_breakpoint_from_master (b, bp_std_terminate, |
a1aa2221 | 7653 | &momentary_breakpoint_ops, 1); |
aa7d318d TT |
7654 | } |
7655 | } | |
7656 | ||
7657 | /* Delete all the std::terminate breakpoints. */ | |
7658 | void | |
7659 | delete_std_terminate_breakpoint (void) | |
7660 | { | |
35df4500 | 7661 | struct breakpoint *b, *b_tmp; |
aa7d318d | 7662 | |
35df4500 | 7663 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
aa7d318d TT |
7664 | if (b->type == bp_std_terminate) |
7665 | delete_breakpoint (b); | |
7666 | } | |
7667 | ||
c4093a6a | 7668 | struct breakpoint * |
a6d9a66e | 7669 | create_thread_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) |
c4093a6a JM |
7670 | { |
7671 | struct breakpoint *b; | |
c4093a6a | 7672 | |
06edf0c0 PA |
7673 | b = create_internal_breakpoint (gdbarch, address, bp_thread_event, |
7674 | &internal_breakpoint_ops); | |
7675 | ||
b5de0fa7 | 7676 | b->enable_state = bp_enabled; |
f00aae0f | 7677 | /* location has to be used or breakpoint_re_set will delete me. */ |
a06efdd6 | 7678 | b->location = new_address_location (b->loc->address); |
c4093a6a | 7679 | |
44702360 | 7680 | update_global_location_list_nothrow (UGLL_MAY_INSERT); |
74960c60 | 7681 | |
c4093a6a JM |
7682 | return b; |
7683 | } | |
7684 | ||
7685 | void | |
7686 | remove_thread_event_breakpoints (void) | |
7687 | { | |
35df4500 | 7688 | struct breakpoint *b, *b_tmp; |
c4093a6a | 7689 | |
35df4500 | 7690 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
6c95b8df PA |
7691 | if (b->type == bp_thread_event |
7692 | && b->loc->pspace == current_program_space) | |
c4093a6a JM |
7693 | delete_breakpoint (b); |
7694 | } | |
7695 | ||
0101ce28 JJ |
7696 | struct lang_and_radix |
7697 | { | |
7698 | enum language lang; | |
7699 | int radix; | |
7700 | }; | |
7701 | ||
4efc6507 DE |
7702 | /* Create a breakpoint for JIT code registration and unregistration. */ |
7703 | ||
7704 | struct breakpoint * | |
7705 | create_jit_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) | |
7706 | { | |
7707 | struct breakpoint *b; | |
7708 | ||
06edf0c0 PA |
7709 | b = create_internal_breakpoint (gdbarch, address, bp_jit_event, |
7710 | &internal_breakpoint_ops); | |
44702360 | 7711 | update_global_location_list_nothrow (UGLL_MAY_INSERT); |
4efc6507 DE |
7712 | return b; |
7713 | } | |
0101ce28 | 7714 | |
03673fc7 PP |
7715 | /* Remove JIT code registration and unregistration breakpoint(s). */ |
7716 | ||
7717 | void | |
7718 | remove_jit_event_breakpoints (void) | |
7719 | { | |
7720 | struct breakpoint *b, *b_tmp; | |
7721 | ||
7722 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
7723 | if (b->type == bp_jit_event | |
7724 | && b->loc->pspace == current_program_space) | |
7725 | delete_breakpoint (b); | |
7726 | } | |
7727 | ||
cae688ec JJ |
7728 | void |
7729 | remove_solib_event_breakpoints (void) | |
7730 | { | |
35df4500 | 7731 | struct breakpoint *b, *b_tmp; |
cae688ec | 7732 | |
35df4500 | 7733 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
6c95b8df PA |
7734 | if (b->type == bp_shlib_event |
7735 | && b->loc->pspace == current_program_space) | |
cae688ec JJ |
7736 | delete_breakpoint (b); |
7737 | } | |
7738 | ||
f37f681c PA |
7739 | /* See breakpoint.h. */ |
7740 | ||
7741 | void | |
7742 | remove_solib_event_breakpoints_at_next_stop (void) | |
7743 | { | |
7744 | struct breakpoint *b, *b_tmp; | |
7745 | ||
7746 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
7747 | if (b->type == bp_shlib_event | |
7748 | && b->loc->pspace == current_program_space) | |
7749 | b->disposition = disp_del_at_next_stop; | |
7750 | } | |
7751 | ||
04086b45 PA |
7752 | /* Helper for create_solib_event_breakpoint / |
7753 | create_and_insert_solib_event_breakpoint. Allows specifying which | |
7754 | INSERT_MODE to pass through to update_global_location_list. */ | |
7755 | ||
7756 | static struct breakpoint * | |
7757 | create_solib_event_breakpoint_1 (struct gdbarch *gdbarch, CORE_ADDR address, | |
7758 | enum ugll_insert_mode insert_mode) | |
cae688ec JJ |
7759 | { |
7760 | struct breakpoint *b; | |
7761 | ||
06edf0c0 PA |
7762 | b = create_internal_breakpoint (gdbarch, address, bp_shlib_event, |
7763 | &internal_breakpoint_ops); | |
04086b45 | 7764 | update_global_location_list_nothrow (insert_mode); |
cae688ec JJ |
7765 | return b; |
7766 | } | |
7767 | ||
04086b45 PA |
7768 | struct breakpoint * |
7769 | create_solib_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) | |
7770 | { | |
7771 | return create_solib_event_breakpoint_1 (gdbarch, address, UGLL_MAY_INSERT); | |
7772 | } | |
7773 | ||
f37f681c PA |
7774 | /* See breakpoint.h. */ |
7775 | ||
7776 | struct breakpoint * | |
7777 | create_and_insert_solib_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) | |
7778 | { | |
7779 | struct breakpoint *b; | |
7780 | ||
04086b45 PA |
7781 | /* Explicitly tell update_global_location_list to insert |
7782 | locations. */ | |
7783 | b = create_solib_event_breakpoint_1 (gdbarch, address, UGLL_INSERT); | |
f37f681c PA |
7784 | if (!b->loc->inserted) |
7785 | { | |
7786 | delete_breakpoint (b); | |
7787 | return NULL; | |
7788 | } | |
7789 | return b; | |
7790 | } | |
7791 | ||
cae688ec JJ |
7792 | /* Disable any breakpoints that are on code in shared libraries. Only |
7793 | apply to enabled breakpoints, disabled ones can just stay disabled. */ | |
7794 | ||
7795 | void | |
cb851954 | 7796 | disable_breakpoints_in_shlibs (void) |
cae688ec | 7797 | { |
876fa593 | 7798 | struct bp_location *loc, **locp_tmp; |
cae688ec | 7799 | |
876fa593 | 7800 | ALL_BP_LOCATIONS (loc, locp_tmp) |
cae688ec | 7801 | { |
2bdf28a0 | 7802 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */ |
0d381245 | 7803 | struct breakpoint *b = loc->owner; |
2bdf28a0 | 7804 | |
4a64f543 MS |
7805 | /* We apply the check to all breakpoints, including disabled for |
7806 | those with loc->duplicate set. This is so that when breakpoint | |
7807 | becomes enabled, or the duplicate is removed, gdb will try to | |
7808 | insert all breakpoints. If we don't set shlib_disabled here, | |
7809 | we'll try to insert those breakpoints and fail. */ | |
1042e4c0 | 7810 | if (((b->type == bp_breakpoint) |
508ccb1f | 7811 | || (b->type == bp_jit_event) |
1042e4c0 | 7812 | || (b->type == bp_hardware_breakpoint) |
d77f58be | 7813 | || (is_tracepoint (b))) |
6c95b8df | 7814 | && loc->pspace == current_program_space |
0d381245 | 7815 | && !loc->shlib_disabled |
6c95b8df | 7816 | && solib_name_from_address (loc->pspace, loc->address) |
a77053c2 | 7817 | ) |
0d381245 VP |
7818 | { |
7819 | loc->shlib_disabled = 1; | |
7820 | } | |
cae688ec JJ |
7821 | } |
7822 | } | |
7823 | ||
63644780 NB |
7824 | /* Disable any breakpoints and tracepoints that are in SOLIB upon |
7825 | notification of unloaded_shlib. Only apply to enabled breakpoints, | |
7826 | disabled ones can just stay disabled. */ | |
84acb35a | 7827 | |
75149521 | 7828 | static void |
84acb35a JJ |
7829 | disable_breakpoints_in_unloaded_shlib (struct so_list *solib) |
7830 | { | |
876fa593 | 7831 | struct bp_location *loc, **locp_tmp; |
84acb35a JJ |
7832 | int disabled_shlib_breaks = 0; |
7833 | ||
c86cf029 VP |
7834 | /* SunOS a.out shared libraries are always mapped, so do not |
7835 | disable breakpoints; they will only be reported as unloaded | |
7836 | through clear_solib when GDB discards its shared library | |
7837 | list. See clear_solib for more information. */ | |
7838 | if (exec_bfd != NULL | |
7839 | && bfd_get_flavour (exec_bfd) == bfd_target_aout_flavour) | |
7840 | return; | |
7841 | ||
876fa593 | 7842 | ALL_BP_LOCATIONS (loc, locp_tmp) |
84acb35a | 7843 | { |
2bdf28a0 | 7844 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */ |
0d381245 | 7845 | struct breakpoint *b = loc->owner; |
cc59ec59 | 7846 | |
1e4d1764 | 7847 | if (solib->pspace == loc->pspace |
e2dd7057 | 7848 | && !loc->shlib_disabled |
1e4d1764 YQ |
7849 | && (((b->type == bp_breakpoint |
7850 | || b->type == bp_jit_event | |
7851 | || b->type == bp_hardware_breakpoint) | |
7852 | && (loc->loc_type == bp_loc_hardware_breakpoint | |
7853 | || loc->loc_type == bp_loc_software_breakpoint)) | |
7854 | || is_tracepoint (b)) | |
e2dd7057 | 7855 | && solib_contains_address_p (solib, loc->address)) |
84acb35a | 7856 | { |
e2dd7057 PP |
7857 | loc->shlib_disabled = 1; |
7858 | /* At this point, we cannot rely on remove_breakpoint | |
7859 | succeeding so we must mark the breakpoint as not inserted | |
7860 | to prevent future errors occurring in remove_breakpoints. */ | |
7861 | loc->inserted = 0; | |
8d3788bd VP |
7862 | |
7863 | /* This may cause duplicate notifications for the same breakpoint. */ | |
7864 | observer_notify_breakpoint_modified (b); | |
7865 | ||
e2dd7057 PP |
7866 | if (!disabled_shlib_breaks) |
7867 | { | |
7868 | target_terminal_ours_for_output (); | |
3e43a32a MS |
7869 | warning (_("Temporarily disabling breakpoints " |
7870 | "for unloaded shared library \"%s\""), | |
e2dd7057 | 7871 | solib->so_name); |
84acb35a | 7872 | } |
e2dd7057 | 7873 | disabled_shlib_breaks = 1; |
84acb35a JJ |
7874 | } |
7875 | } | |
84acb35a JJ |
7876 | } |
7877 | ||
63644780 NB |
7878 | /* Disable any breakpoints and tracepoints in OBJFILE upon |
7879 | notification of free_objfile. Only apply to enabled breakpoints, | |
7880 | disabled ones can just stay disabled. */ | |
7881 | ||
7882 | static void | |
7883 | disable_breakpoints_in_freed_objfile (struct objfile *objfile) | |
7884 | { | |
7885 | struct breakpoint *b; | |
7886 | ||
7887 | if (objfile == NULL) | |
7888 | return; | |
7889 | ||
d03de421 PA |
7890 | /* OBJF_SHARED|OBJF_USERLOADED objfiles are dynamic modules manually |
7891 | managed by the user with add-symbol-file/remove-symbol-file. | |
7892 | Similarly to how breakpoints in shared libraries are handled in | |
7893 | response to "nosharedlibrary", mark breakpoints in such modules | |
08351840 PA |
7894 | shlib_disabled so they end up uninserted on the next global |
7895 | location list update. Shared libraries not loaded by the user | |
7896 | aren't handled here -- they're already handled in | |
7897 | disable_breakpoints_in_unloaded_shlib, called by solib.c's | |
7898 | solib_unloaded observer. We skip objfiles that are not | |
d03de421 PA |
7899 | OBJF_SHARED as those aren't considered dynamic objects (e.g. the |
7900 | main objfile). */ | |
7901 | if ((objfile->flags & OBJF_SHARED) == 0 | |
7902 | || (objfile->flags & OBJF_USERLOADED) == 0) | |
63644780 NB |
7903 | return; |
7904 | ||
7905 | ALL_BREAKPOINTS (b) | |
7906 | { | |
7907 | struct bp_location *loc; | |
7908 | int bp_modified = 0; | |
7909 | ||
7910 | if (!is_breakpoint (b) && !is_tracepoint (b)) | |
7911 | continue; | |
7912 | ||
7913 | for (loc = b->loc; loc != NULL; loc = loc->next) | |
7914 | { | |
7915 | CORE_ADDR loc_addr = loc->address; | |
7916 | ||
7917 | if (loc->loc_type != bp_loc_hardware_breakpoint | |
7918 | && loc->loc_type != bp_loc_software_breakpoint) | |
7919 | continue; | |
7920 | ||
7921 | if (loc->shlib_disabled != 0) | |
7922 | continue; | |
7923 | ||
7924 | if (objfile->pspace != loc->pspace) | |
7925 | continue; | |
7926 | ||
7927 | if (loc->loc_type != bp_loc_hardware_breakpoint | |
7928 | && loc->loc_type != bp_loc_software_breakpoint) | |
7929 | continue; | |
7930 | ||
7931 | if (is_addr_in_objfile (loc_addr, objfile)) | |
7932 | { | |
7933 | loc->shlib_disabled = 1; | |
08351840 PA |
7934 | /* At this point, we don't know whether the object was |
7935 | unmapped from the inferior or not, so leave the | |
7936 | inserted flag alone. We'll handle failure to | |
7937 | uninsert quietly, in case the object was indeed | |
7938 | unmapped. */ | |
63644780 NB |
7939 | |
7940 | mark_breakpoint_location_modified (loc); | |
7941 | ||
7942 | bp_modified = 1; | |
7943 | } | |
7944 | } | |
7945 | ||
7946 | if (bp_modified) | |
7947 | observer_notify_breakpoint_modified (b); | |
7948 | } | |
7949 | } | |
7950 | ||
ce78b96d JB |
7951 | /* FORK & VFORK catchpoints. */ |
7952 | ||
e29a4733 PA |
7953 | /* An instance of this type is used to represent a fork or vfork |
7954 | catchpoint. It includes a "struct breakpoint" as a kind of base | |
7955 | class; users downcast to "struct breakpoint *" when needed. A | |
7956 | breakpoint is really of this type iff its ops pointer points to | |
7957 | CATCH_FORK_BREAKPOINT_OPS. */ | |
7958 | ||
7959 | struct fork_catchpoint | |
7960 | { | |
7961 | /* The base class. */ | |
7962 | struct breakpoint base; | |
7963 | ||
7964 | /* Process id of a child process whose forking triggered this | |
7965 | catchpoint. This field is only valid immediately after this | |
7966 | catchpoint has triggered. */ | |
7967 | ptid_t forked_inferior_pid; | |
7968 | }; | |
7969 | ||
4a64f543 MS |
7970 | /* Implement the "insert" breakpoint_ops method for fork |
7971 | catchpoints. */ | |
ce78b96d | 7972 | |
77b06cd7 TJB |
7973 | static int |
7974 | insert_catch_fork (struct bp_location *bl) | |
ce78b96d | 7975 | { |
dfd4cc63 | 7976 | return target_insert_fork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
7977 | } |
7978 | ||
4a64f543 MS |
7979 | /* Implement the "remove" breakpoint_ops method for fork |
7980 | catchpoints. */ | |
ce78b96d JB |
7981 | |
7982 | static int | |
77b06cd7 | 7983 | remove_catch_fork (struct bp_location *bl) |
ce78b96d | 7984 | { |
dfd4cc63 | 7985 | return target_remove_fork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
7986 | } |
7987 | ||
7988 | /* Implement the "breakpoint_hit" breakpoint_ops method for fork | |
7989 | catchpoints. */ | |
7990 | ||
7991 | static int | |
f1310107 | 7992 | breakpoint_hit_catch_fork (const struct bp_location *bl, |
09ac7c10 TT |
7993 | struct address_space *aspace, CORE_ADDR bp_addr, |
7994 | const struct target_waitstatus *ws) | |
ce78b96d | 7995 | { |
e29a4733 PA |
7996 | struct fork_catchpoint *c = (struct fork_catchpoint *) bl->owner; |
7997 | ||
f90263c1 TT |
7998 | if (ws->kind != TARGET_WAITKIND_FORKED) |
7999 | return 0; | |
8000 | ||
8001 | c->forked_inferior_pid = ws->value.related_pid; | |
8002 | return 1; | |
ce78b96d JB |
8003 | } |
8004 | ||
4a64f543 MS |
8005 | /* Implement the "print_it" breakpoint_ops method for fork |
8006 | catchpoints. */ | |
ce78b96d JB |
8007 | |
8008 | static enum print_stop_action | |
348d480f | 8009 | print_it_catch_fork (bpstat bs) |
ce78b96d | 8010 | { |
36dfb11c | 8011 | struct ui_out *uiout = current_uiout; |
348d480f PA |
8012 | struct breakpoint *b = bs->breakpoint_at; |
8013 | struct fork_catchpoint *c = (struct fork_catchpoint *) bs->breakpoint_at; | |
e29a4733 | 8014 | |
ce78b96d | 8015 | annotate_catchpoint (b->number); |
36dfb11c TT |
8016 | if (b->disposition == disp_del) |
8017 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
8018 | else | |
8019 | ui_out_text (uiout, "\nCatchpoint "); | |
8020 | if (ui_out_is_mi_like_p (uiout)) | |
8021 | { | |
8022 | ui_out_field_string (uiout, "reason", | |
8023 | async_reason_lookup (EXEC_ASYNC_FORK)); | |
8024 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8025 | } | |
8026 | ui_out_field_int (uiout, "bkptno", b->number); | |
8027 | ui_out_text (uiout, " (forked process "); | |
8028 | ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid)); | |
8029 | ui_out_text (uiout, "), "); | |
ce78b96d JB |
8030 | return PRINT_SRC_AND_LOC; |
8031 | } | |
8032 | ||
4a64f543 MS |
8033 | /* Implement the "print_one" breakpoint_ops method for fork |
8034 | catchpoints. */ | |
ce78b96d JB |
8035 | |
8036 | static void | |
a6d9a66e | 8037 | print_one_catch_fork (struct breakpoint *b, struct bp_location **last_loc) |
ce78b96d | 8038 | { |
e29a4733 | 8039 | struct fork_catchpoint *c = (struct fork_catchpoint *) b; |
79a45b7d | 8040 | struct value_print_options opts; |
79a45e25 | 8041 | struct ui_out *uiout = current_uiout; |
79a45b7d TT |
8042 | |
8043 | get_user_print_options (&opts); | |
8044 | ||
4a64f543 MS |
8045 | /* Field 4, the address, is omitted (which makes the columns not |
8046 | line up too nicely with the headers, but the effect is relatively | |
8047 | readable). */ | |
79a45b7d | 8048 | if (opts.addressprint) |
ce78b96d JB |
8049 | ui_out_field_skip (uiout, "addr"); |
8050 | annotate_field (5); | |
8051 | ui_out_text (uiout, "fork"); | |
e29a4733 | 8052 | if (!ptid_equal (c->forked_inferior_pid, null_ptid)) |
ce78b96d JB |
8053 | { |
8054 | ui_out_text (uiout, ", process "); | |
8055 | ui_out_field_int (uiout, "what", | |
e29a4733 | 8056 | ptid_get_pid (c->forked_inferior_pid)); |
ce78b96d JB |
8057 | ui_out_spaces (uiout, 1); |
8058 | } | |
8ac3646f TT |
8059 | |
8060 | if (ui_out_is_mi_like_p (uiout)) | |
8061 | ui_out_field_string (uiout, "catch-type", "fork"); | |
ce78b96d JB |
8062 | } |
8063 | ||
8064 | /* Implement the "print_mention" breakpoint_ops method for fork | |
8065 | catchpoints. */ | |
8066 | ||
8067 | static void | |
8068 | print_mention_catch_fork (struct breakpoint *b) | |
8069 | { | |
8070 | printf_filtered (_("Catchpoint %d (fork)"), b->number); | |
8071 | } | |
8072 | ||
6149aea9 PA |
8073 | /* Implement the "print_recreate" breakpoint_ops method for fork |
8074 | catchpoints. */ | |
8075 | ||
8076 | static void | |
8077 | print_recreate_catch_fork (struct breakpoint *b, struct ui_file *fp) | |
8078 | { | |
8079 | fprintf_unfiltered (fp, "catch fork"); | |
d9b3f62e | 8080 | print_recreate_thread (b, fp); |
6149aea9 PA |
8081 | } |
8082 | ||
ce78b96d JB |
8083 | /* The breakpoint_ops structure to be used in fork catchpoints. */ |
8084 | ||
2060206e | 8085 | static struct breakpoint_ops catch_fork_breakpoint_ops; |
ce78b96d | 8086 | |
4a64f543 MS |
8087 | /* Implement the "insert" breakpoint_ops method for vfork |
8088 | catchpoints. */ | |
ce78b96d | 8089 | |
77b06cd7 TJB |
8090 | static int |
8091 | insert_catch_vfork (struct bp_location *bl) | |
ce78b96d | 8092 | { |
dfd4cc63 | 8093 | return target_insert_vfork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
8094 | } |
8095 | ||
4a64f543 MS |
8096 | /* Implement the "remove" breakpoint_ops method for vfork |
8097 | catchpoints. */ | |
ce78b96d JB |
8098 | |
8099 | static int | |
77b06cd7 | 8100 | remove_catch_vfork (struct bp_location *bl) |
ce78b96d | 8101 | { |
dfd4cc63 | 8102 | return target_remove_vfork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
8103 | } |
8104 | ||
8105 | /* Implement the "breakpoint_hit" breakpoint_ops method for vfork | |
8106 | catchpoints. */ | |
8107 | ||
8108 | static int | |
f1310107 | 8109 | breakpoint_hit_catch_vfork (const struct bp_location *bl, |
09ac7c10 TT |
8110 | struct address_space *aspace, CORE_ADDR bp_addr, |
8111 | const struct target_waitstatus *ws) | |
ce78b96d | 8112 | { |
e29a4733 PA |
8113 | struct fork_catchpoint *c = (struct fork_catchpoint *) bl->owner; |
8114 | ||
f90263c1 TT |
8115 | if (ws->kind != TARGET_WAITKIND_VFORKED) |
8116 | return 0; | |
8117 | ||
8118 | c->forked_inferior_pid = ws->value.related_pid; | |
8119 | return 1; | |
ce78b96d JB |
8120 | } |
8121 | ||
4a64f543 MS |
8122 | /* Implement the "print_it" breakpoint_ops method for vfork |
8123 | catchpoints. */ | |
ce78b96d JB |
8124 | |
8125 | static enum print_stop_action | |
348d480f | 8126 | print_it_catch_vfork (bpstat bs) |
ce78b96d | 8127 | { |
36dfb11c | 8128 | struct ui_out *uiout = current_uiout; |
348d480f | 8129 | struct breakpoint *b = bs->breakpoint_at; |
e29a4733 PA |
8130 | struct fork_catchpoint *c = (struct fork_catchpoint *) b; |
8131 | ||
ce78b96d | 8132 | annotate_catchpoint (b->number); |
36dfb11c TT |
8133 | if (b->disposition == disp_del) |
8134 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
8135 | else | |
8136 | ui_out_text (uiout, "\nCatchpoint "); | |
8137 | if (ui_out_is_mi_like_p (uiout)) | |
8138 | { | |
8139 | ui_out_field_string (uiout, "reason", | |
8140 | async_reason_lookup (EXEC_ASYNC_VFORK)); | |
8141 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8142 | } | |
8143 | ui_out_field_int (uiout, "bkptno", b->number); | |
8144 | ui_out_text (uiout, " (vforked process "); | |
8145 | ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid)); | |
8146 | ui_out_text (uiout, "), "); | |
ce78b96d JB |
8147 | return PRINT_SRC_AND_LOC; |
8148 | } | |
8149 | ||
4a64f543 MS |
8150 | /* Implement the "print_one" breakpoint_ops method for vfork |
8151 | catchpoints. */ | |
ce78b96d JB |
8152 | |
8153 | static void | |
a6d9a66e | 8154 | print_one_catch_vfork (struct breakpoint *b, struct bp_location **last_loc) |
ce78b96d | 8155 | { |
e29a4733 | 8156 | struct fork_catchpoint *c = (struct fork_catchpoint *) b; |
79a45b7d | 8157 | struct value_print_options opts; |
79a45e25 | 8158 | struct ui_out *uiout = current_uiout; |
79a45b7d TT |
8159 | |
8160 | get_user_print_options (&opts); | |
4a64f543 MS |
8161 | /* Field 4, the address, is omitted (which makes the columns not |
8162 | line up too nicely with the headers, but the effect is relatively | |
8163 | readable). */ | |
79a45b7d | 8164 | if (opts.addressprint) |
ce78b96d JB |
8165 | ui_out_field_skip (uiout, "addr"); |
8166 | annotate_field (5); | |
8167 | ui_out_text (uiout, "vfork"); | |
e29a4733 | 8168 | if (!ptid_equal (c->forked_inferior_pid, null_ptid)) |
ce78b96d JB |
8169 | { |
8170 | ui_out_text (uiout, ", process "); | |
8171 | ui_out_field_int (uiout, "what", | |
e29a4733 | 8172 | ptid_get_pid (c->forked_inferior_pid)); |
ce78b96d JB |
8173 | ui_out_spaces (uiout, 1); |
8174 | } | |
8ac3646f TT |
8175 | |
8176 | if (ui_out_is_mi_like_p (uiout)) | |
8177 | ui_out_field_string (uiout, "catch-type", "vfork"); | |
ce78b96d JB |
8178 | } |
8179 | ||
8180 | /* Implement the "print_mention" breakpoint_ops method for vfork | |
8181 | catchpoints. */ | |
8182 | ||
8183 | static void | |
8184 | print_mention_catch_vfork (struct breakpoint *b) | |
8185 | { | |
8186 | printf_filtered (_("Catchpoint %d (vfork)"), b->number); | |
8187 | } | |
8188 | ||
6149aea9 PA |
8189 | /* Implement the "print_recreate" breakpoint_ops method for vfork |
8190 | catchpoints. */ | |
8191 | ||
8192 | static void | |
8193 | print_recreate_catch_vfork (struct breakpoint *b, struct ui_file *fp) | |
8194 | { | |
8195 | fprintf_unfiltered (fp, "catch vfork"); | |
d9b3f62e | 8196 | print_recreate_thread (b, fp); |
6149aea9 PA |
8197 | } |
8198 | ||
ce78b96d JB |
8199 | /* The breakpoint_ops structure to be used in vfork catchpoints. */ |
8200 | ||
2060206e | 8201 | static struct breakpoint_ops catch_vfork_breakpoint_ops; |
ce78b96d | 8202 | |
edcc5120 TT |
8203 | /* An instance of this type is used to represent an solib catchpoint. |
8204 | It includes a "struct breakpoint" as a kind of base class; users | |
8205 | downcast to "struct breakpoint *" when needed. A breakpoint is | |
8206 | really of this type iff its ops pointer points to | |
8207 | CATCH_SOLIB_BREAKPOINT_OPS. */ | |
8208 | ||
8209 | struct solib_catchpoint | |
8210 | { | |
8211 | /* The base class. */ | |
8212 | struct breakpoint base; | |
8213 | ||
8214 | /* True for "catch load", false for "catch unload". */ | |
8215 | unsigned char is_load; | |
8216 | ||
8217 | /* Regular expression to match, if any. COMPILED is only valid when | |
8218 | REGEX is non-NULL. */ | |
8219 | char *regex; | |
8220 | regex_t compiled; | |
8221 | }; | |
8222 | ||
8223 | static void | |
8224 | dtor_catch_solib (struct breakpoint *b) | |
8225 | { | |
8226 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8227 | ||
8228 | if (self->regex) | |
8229 | regfree (&self->compiled); | |
8230 | xfree (self->regex); | |
8231 | ||
8232 | base_breakpoint_ops.dtor (b); | |
8233 | } | |
8234 | ||
8235 | static int | |
8236 | insert_catch_solib (struct bp_location *ignore) | |
8237 | { | |
8238 | return 0; | |
8239 | } | |
8240 | ||
8241 | static int | |
8242 | remove_catch_solib (struct bp_location *ignore) | |
8243 | { | |
8244 | return 0; | |
8245 | } | |
8246 | ||
8247 | static int | |
8248 | breakpoint_hit_catch_solib (const struct bp_location *bl, | |
8249 | struct address_space *aspace, | |
8250 | CORE_ADDR bp_addr, | |
8251 | const struct target_waitstatus *ws) | |
8252 | { | |
8253 | struct solib_catchpoint *self = (struct solib_catchpoint *) bl->owner; | |
8254 | struct breakpoint *other; | |
8255 | ||
8256 | if (ws->kind == TARGET_WAITKIND_LOADED) | |
8257 | return 1; | |
8258 | ||
8259 | ALL_BREAKPOINTS (other) | |
8260 | { | |
8261 | struct bp_location *other_bl; | |
8262 | ||
8263 | if (other == bl->owner) | |
8264 | continue; | |
8265 | ||
8266 | if (other->type != bp_shlib_event) | |
8267 | continue; | |
8268 | ||
8269 | if (self->base.pspace != NULL && other->pspace != self->base.pspace) | |
8270 | continue; | |
8271 | ||
8272 | for (other_bl = other->loc; other_bl != NULL; other_bl = other_bl->next) | |
8273 | { | |
8274 | if (other->ops->breakpoint_hit (other_bl, aspace, bp_addr, ws)) | |
8275 | return 1; | |
8276 | } | |
8277 | } | |
8278 | ||
8279 | return 0; | |
8280 | } | |
8281 | ||
8282 | static void | |
8283 | check_status_catch_solib (struct bpstats *bs) | |
8284 | { | |
8285 | struct solib_catchpoint *self | |
8286 | = (struct solib_catchpoint *) bs->breakpoint_at; | |
8287 | int ix; | |
8288 | ||
8289 | if (self->is_load) | |
8290 | { | |
8291 | struct so_list *iter; | |
8292 | ||
8293 | for (ix = 0; | |
8294 | VEC_iterate (so_list_ptr, current_program_space->added_solibs, | |
8295 | ix, iter); | |
8296 | ++ix) | |
8297 | { | |
8298 | if (!self->regex | |
8299 | || regexec (&self->compiled, iter->so_name, 0, NULL, 0) == 0) | |
8300 | return; | |
8301 | } | |
8302 | } | |
8303 | else | |
8304 | { | |
8305 | char *iter; | |
8306 | ||
8307 | for (ix = 0; | |
8308 | VEC_iterate (char_ptr, current_program_space->deleted_solibs, | |
8309 | ix, iter); | |
8310 | ++ix) | |
8311 | { | |
8312 | if (!self->regex | |
8313 | || regexec (&self->compiled, iter, 0, NULL, 0) == 0) | |
8314 | return; | |
8315 | } | |
8316 | } | |
8317 | ||
8318 | bs->stop = 0; | |
8319 | bs->print_it = print_it_noop; | |
8320 | } | |
8321 | ||
8322 | static enum print_stop_action | |
8323 | print_it_catch_solib (bpstat bs) | |
8324 | { | |
8325 | struct breakpoint *b = bs->breakpoint_at; | |
8326 | struct ui_out *uiout = current_uiout; | |
8327 | ||
8328 | annotate_catchpoint (b->number); | |
8329 | if (b->disposition == disp_del) | |
8330 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
8331 | else | |
8332 | ui_out_text (uiout, "\nCatchpoint "); | |
8333 | ui_out_field_int (uiout, "bkptno", b->number); | |
8334 | ui_out_text (uiout, "\n"); | |
8335 | if (ui_out_is_mi_like_p (uiout)) | |
8336 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8337 | print_solib_event (1); | |
8338 | return PRINT_SRC_AND_LOC; | |
8339 | } | |
8340 | ||
8341 | static void | |
8342 | print_one_catch_solib (struct breakpoint *b, struct bp_location **locs) | |
8343 | { | |
8344 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8345 | struct value_print_options opts; | |
8346 | struct ui_out *uiout = current_uiout; | |
8347 | char *msg; | |
8348 | ||
8349 | get_user_print_options (&opts); | |
8350 | /* Field 4, the address, is omitted (which makes the columns not | |
8351 | line up too nicely with the headers, but the effect is relatively | |
8352 | readable). */ | |
8353 | if (opts.addressprint) | |
8354 | { | |
8355 | annotate_field (4); | |
8356 | ui_out_field_skip (uiout, "addr"); | |
8357 | } | |
8358 | ||
8359 | annotate_field (5); | |
8360 | if (self->is_load) | |
8361 | { | |
8362 | if (self->regex) | |
8363 | msg = xstrprintf (_("load of library matching %s"), self->regex); | |
8364 | else | |
8365 | msg = xstrdup (_("load of library")); | |
8366 | } | |
8367 | else | |
8368 | { | |
8369 | if (self->regex) | |
8370 | msg = xstrprintf (_("unload of library matching %s"), self->regex); | |
8371 | else | |
8372 | msg = xstrdup (_("unload of library")); | |
8373 | } | |
8374 | ui_out_field_string (uiout, "what", msg); | |
8375 | xfree (msg); | |
8ac3646f TT |
8376 | |
8377 | if (ui_out_is_mi_like_p (uiout)) | |
8378 | ui_out_field_string (uiout, "catch-type", | |
8379 | self->is_load ? "load" : "unload"); | |
edcc5120 TT |
8380 | } |
8381 | ||
8382 | static void | |
8383 | print_mention_catch_solib (struct breakpoint *b) | |
8384 | { | |
8385 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8386 | ||
8387 | printf_filtered (_("Catchpoint %d (%s)"), b->number, | |
8388 | self->is_load ? "load" : "unload"); | |
8389 | } | |
8390 | ||
8391 | static void | |
8392 | print_recreate_catch_solib (struct breakpoint *b, struct ui_file *fp) | |
8393 | { | |
8394 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8395 | ||
8396 | fprintf_unfiltered (fp, "%s %s", | |
8397 | b->disposition == disp_del ? "tcatch" : "catch", | |
8398 | self->is_load ? "load" : "unload"); | |
8399 | if (self->regex) | |
8400 | fprintf_unfiltered (fp, " %s", self->regex); | |
8401 | fprintf_unfiltered (fp, "\n"); | |
8402 | } | |
8403 | ||
8404 | static struct breakpoint_ops catch_solib_breakpoint_ops; | |
8405 | ||
91985142 MG |
8406 | /* Shared helper function (MI and CLI) for creating and installing |
8407 | a shared object event catchpoint. If IS_LOAD is non-zero then | |
8408 | the events to be caught are load events, otherwise they are | |
8409 | unload events. If IS_TEMP is non-zero the catchpoint is a | |
8410 | temporary one. If ENABLED is non-zero the catchpoint is | |
8411 | created in an enabled state. */ | |
edcc5120 | 8412 | |
91985142 MG |
8413 | void |
8414 | add_solib_catchpoint (char *arg, int is_load, int is_temp, int enabled) | |
edcc5120 TT |
8415 | { |
8416 | struct solib_catchpoint *c; | |
8417 | struct gdbarch *gdbarch = get_current_arch (); | |
edcc5120 TT |
8418 | struct cleanup *cleanup; |
8419 | ||
edcc5120 TT |
8420 | if (!arg) |
8421 | arg = ""; | |
8422 | arg = skip_spaces (arg); | |
8423 | ||
8424 | c = XCNEW (struct solib_catchpoint); | |
8425 | cleanup = make_cleanup (xfree, c); | |
8426 | ||
8427 | if (*arg != '\0') | |
8428 | { | |
8429 | int errcode; | |
8430 | ||
8431 | errcode = regcomp (&c->compiled, arg, REG_NOSUB); | |
8432 | if (errcode != 0) | |
8433 | { | |
8434 | char *err = get_regcomp_error (errcode, &c->compiled); | |
8435 | ||
8436 | make_cleanup (xfree, err); | |
8437 | error (_("Invalid regexp (%s): %s"), err, arg); | |
8438 | } | |
8439 | c->regex = xstrdup (arg); | |
8440 | } | |
8441 | ||
8442 | c->is_load = is_load; | |
91985142 | 8443 | init_catchpoint (&c->base, gdbarch, is_temp, NULL, |
edcc5120 TT |
8444 | &catch_solib_breakpoint_ops); |
8445 | ||
91985142 MG |
8446 | c->base.enable_state = enabled ? bp_enabled : bp_disabled; |
8447 | ||
edcc5120 TT |
8448 | discard_cleanups (cleanup); |
8449 | install_breakpoint (0, &c->base, 1); | |
8450 | } | |
8451 | ||
91985142 MG |
8452 | /* A helper function that does all the work for "catch load" and |
8453 | "catch unload". */ | |
8454 | ||
8455 | static void | |
8456 | catch_load_or_unload (char *arg, int from_tty, int is_load, | |
8457 | struct cmd_list_element *command) | |
8458 | { | |
8459 | int tempflag; | |
8460 | const int enabled = 1; | |
8461 | ||
8462 | tempflag = get_cmd_context (command) == CATCH_TEMPORARY; | |
8463 | ||
8464 | add_solib_catchpoint (arg, is_load, tempflag, enabled); | |
8465 | } | |
8466 | ||
edcc5120 TT |
8467 | static void |
8468 | catch_load_command_1 (char *arg, int from_tty, | |
8469 | struct cmd_list_element *command) | |
8470 | { | |
8471 | catch_load_or_unload (arg, from_tty, 1, command); | |
8472 | } | |
8473 | ||
8474 | static void | |
8475 | catch_unload_command_1 (char *arg, int from_tty, | |
8476 | struct cmd_list_element *command) | |
8477 | { | |
8478 | catch_load_or_unload (arg, from_tty, 0, command); | |
8479 | } | |
8480 | ||
346774a9 PA |
8481 | /* Initialize a new breakpoint of the bp_catchpoint kind. If TEMPFLAG |
8482 | is non-zero, then make the breakpoint temporary. If COND_STRING is | |
8483 | not NULL, then store it in the breakpoint. OPS, if not NULL, is | |
8484 | the breakpoint_ops structure associated to the catchpoint. */ | |
ce78b96d | 8485 | |
ab04a2af | 8486 | void |
346774a9 PA |
8487 | init_catchpoint (struct breakpoint *b, |
8488 | struct gdbarch *gdbarch, int tempflag, | |
8489 | char *cond_string, | |
c0a91b2b | 8490 | const struct breakpoint_ops *ops) |
c906108c | 8491 | { |
c5aa993b | 8492 | struct symtab_and_line sal; |
346774a9 | 8493 | |
fe39c653 | 8494 | init_sal (&sal); |
6c95b8df | 8495 | sal.pspace = current_program_space; |
c5aa993b | 8496 | |
28010a5d | 8497 | init_raw_breakpoint (b, gdbarch, sal, bp_catchpoint, ops); |
ce78b96d | 8498 | |
1b36a34b | 8499 | b->cond_string = (cond_string == NULL) ? NULL : xstrdup (cond_string); |
b5de0fa7 | 8500 | b->disposition = tempflag ? disp_del : disp_donttouch; |
346774a9 PA |
8501 | } |
8502 | ||
28010a5d | 8503 | void |
3ea46bff | 8504 | install_breakpoint (int internal, struct breakpoint *b, int update_gll) |
c56053d2 PA |
8505 | { |
8506 | add_to_breakpoint_chain (b); | |
3a5c3e22 | 8507 | set_breakpoint_number (internal, b); |
558a9d82 YQ |
8508 | if (is_tracepoint (b)) |
8509 | set_tracepoint_count (breakpoint_count); | |
3a5c3e22 PA |
8510 | if (!internal) |
8511 | mention (b); | |
c56053d2 | 8512 | observer_notify_breakpoint_created (b); |
3ea46bff YQ |
8513 | |
8514 | if (update_gll) | |
44702360 | 8515 | update_global_location_list (UGLL_MAY_INSERT); |
c56053d2 PA |
8516 | } |
8517 | ||
9b70b993 | 8518 | static void |
a6d9a66e UW |
8519 | create_fork_vfork_event_catchpoint (struct gdbarch *gdbarch, |
8520 | int tempflag, char *cond_string, | |
c0a91b2b | 8521 | const struct breakpoint_ops *ops) |
c906108c | 8522 | { |
e29a4733 | 8523 | struct fork_catchpoint *c = XNEW (struct fork_catchpoint); |
ce78b96d | 8524 | |
e29a4733 PA |
8525 | init_catchpoint (&c->base, gdbarch, tempflag, cond_string, ops); |
8526 | ||
8527 | c->forked_inferior_pid = null_ptid; | |
8528 | ||
3ea46bff | 8529 | install_breakpoint (0, &c->base, 1); |
c906108c SS |
8530 | } |
8531 | ||
fe798b75 JB |
8532 | /* Exec catchpoints. */ |
8533 | ||
b4d90040 PA |
8534 | /* An instance of this type is used to represent an exec catchpoint. |
8535 | It includes a "struct breakpoint" as a kind of base class; users | |
8536 | downcast to "struct breakpoint *" when needed. A breakpoint is | |
8537 | really of this type iff its ops pointer points to | |
8538 | CATCH_EXEC_BREAKPOINT_OPS. */ | |
8539 | ||
8540 | struct exec_catchpoint | |
8541 | { | |
8542 | /* The base class. */ | |
8543 | struct breakpoint base; | |
8544 | ||
8545 | /* Filename of a program whose exec triggered this catchpoint. | |
8546 | This field is only valid immediately after this catchpoint has | |
8547 | triggered. */ | |
8548 | char *exec_pathname; | |
8549 | }; | |
8550 | ||
8551 | /* Implement the "dtor" breakpoint_ops method for exec | |
8552 | catchpoints. */ | |
8553 | ||
8554 | static void | |
8555 | dtor_catch_exec (struct breakpoint *b) | |
8556 | { | |
8557 | struct exec_catchpoint *c = (struct exec_catchpoint *) b; | |
8558 | ||
8559 | xfree (c->exec_pathname); | |
348d480f | 8560 | |
2060206e | 8561 | base_breakpoint_ops.dtor (b); |
b4d90040 PA |
8562 | } |
8563 | ||
77b06cd7 TJB |
8564 | static int |
8565 | insert_catch_exec (struct bp_location *bl) | |
c906108c | 8566 | { |
dfd4cc63 | 8567 | return target_insert_exec_catchpoint (ptid_get_pid (inferior_ptid)); |
fe798b75 | 8568 | } |
c906108c | 8569 | |
fe798b75 | 8570 | static int |
77b06cd7 | 8571 | remove_catch_exec (struct bp_location *bl) |
fe798b75 | 8572 | { |
dfd4cc63 | 8573 | return target_remove_exec_catchpoint (ptid_get_pid (inferior_ptid)); |
fe798b75 | 8574 | } |
c906108c | 8575 | |
fe798b75 | 8576 | static int |
f1310107 | 8577 | breakpoint_hit_catch_exec (const struct bp_location *bl, |
09ac7c10 TT |
8578 | struct address_space *aspace, CORE_ADDR bp_addr, |
8579 | const struct target_waitstatus *ws) | |
fe798b75 | 8580 | { |
b4d90040 PA |
8581 | struct exec_catchpoint *c = (struct exec_catchpoint *) bl->owner; |
8582 | ||
f90263c1 TT |
8583 | if (ws->kind != TARGET_WAITKIND_EXECD) |
8584 | return 0; | |
8585 | ||
8586 | c->exec_pathname = xstrdup (ws->value.execd_pathname); | |
8587 | return 1; | |
fe798b75 | 8588 | } |
c906108c | 8589 | |
fe798b75 | 8590 | static enum print_stop_action |
348d480f | 8591 | print_it_catch_exec (bpstat bs) |
fe798b75 | 8592 | { |
36dfb11c | 8593 | struct ui_out *uiout = current_uiout; |
348d480f | 8594 | struct breakpoint *b = bs->breakpoint_at; |
b4d90040 PA |
8595 | struct exec_catchpoint *c = (struct exec_catchpoint *) b; |
8596 | ||
fe798b75 | 8597 | annotate_catchpoint (b->number); |
36dfb11c TT |
8598 | if (b->disposition == disp_del) |
8599 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
8600 | else | |
8601 | ui_out_text (uiout, "\nCatchpoint "); | |
8602 | if (ui_out_is_mi_like_p (uiout)) | |
8603 | { | |
8604 | ui_out_field_string (uiout, "reason", | |
8605 | async_reason_lookup (EXEC_ASYNC_EXEC)); | |
8606 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8607 | } | |
8608 | ui_out_field_int (uiout, "bkptno", b->number); | |
8609 | ui_out_text (uiout, " (exec'd "); | |
8610 | ui_out_field_string (uiout, "new-exec", c->exec_pathname); | |
8611 | ui_out_text (uiout, "), "); | |
8612 | ||
fe798b75 | 8613 | return PRINT_SRC_AND_LOC; |
c906108c SS |
8614 | } |
8615 | ||
fe798b75 | 8616 | static void |
a6d9a66e | 8617 | print_one_catch_exec (struct breakpoint *b, struct bp_location **last_loc) |
fe798b75 | 8618 | { |
b4d90040 | 8619 | struct exec_catchpoint *c = (struct exec_catchpoint *) b; |
fe798b75 | 8620 | struct value_print_options opts; |
79a45e25 | 8621 | struct ui_out *uiout = current_uiout; |
fe798b75 JB |
8622 | |
8623 | get_user_print_options (&opts); | |
8624 | ||
8625 | /* Field 4, the address, is omitted (which makes the columns | |
8626 | not line up too nicely with the headers, but the effect | |
8627 | is relatively readable). */ | |
8628 | if (opts.addressprint) | |
8629 | ui_out_field_skip (uiout, "addr"); | |
8630 | annotate_field (5); | |
8631 | ui_out_text (uiout, "exec"); | |
b4d90040 | 8632 | if (c->exec_pathname != NULL) |
fe798b75 JB |
8633 | { |
8634 | ui_out_text (uiout, ", program \""); | |
b4d90040 | 8635 | ui_out_field_string (uiout, "what", c->exec_pathname); |
fe798b75 JB |
8636 | ui_out_text (uiout, "\" "); |
8637 | } | |
8ac3646f TT |
8638 | |
8639 | if (ui_out_is_mi_like_p (uiout)) | |
8640 | ui_out_field_string (uiout, "catch-type", "exec"); | |
fe798b75 JB |
8641 | } |
8642 | ||
8643 | static void | |
8644 | print_mention_catch_exec (struct breakpoint *b) | |
8645 | { | |
8646 | printf_filtered (_("Catchpoint %d (exec)"), b->number); | |
8647 | } | |
8648 | ||
6149aea9 PA |
8649 | /* Implement the "print_recreate" breakpoint_ops method for exec |
8650 | catchpoints. */ | |
8651 | ||
8652 | static void | |
8653 | print_recreate_catch_exec (struct breakpoint *b, struct ui_file *fp) | |
8654 | { | |
8655 | fprintf_unfiltered (fp, "catch exec"); | |
d9b3f62e | 8656 | print_recreate_thread (b, fp); |
6149aea9 PA |
8657 | } |
8658 | ||
2060206e | 8659 | static struct breakpoint_ops catch_exec_breakpoint_ops; |
fe798b75 | 8660 | |
c906108c | 8661 | static int |
fba45db2 | 8662 | hw_breakpoint_used_count (void) |
c906108c | 8663 | { |
c906108c | 8664 | int i = 0; |
f1310107 TJB |
8665 | struct breakpoint *b; |
8666 | struct bp_location *bl; | |
c906108c SS |
8667 | |
8668 | ALL_BREAKPOINTS (b) | |
c5aa993b | 8669 | { |
d6b74ac4 | 8670 | if (b->type == bp_hardware_breakpoint && breakpoint_enabled (b)) |
f1310107 TJB |
8671 | for (bl = b->loc; bl; bl = bl->next) |
8672 | { | |
8673 | /* Special types of hardware breakpoints may use more than | |
8674 | one register. */ | |
348d480f | 8675 | i += b->ops->resources_needed (bl); |
f1310107 | 8676 | } |
c5aa993b | 8677 | } |
c906108c SS |
8678 | |
8679 | return i; | |
8680 | } | |
8681 | ||
a1398e0c PA |
8682 | /* Returns the resources B would use if it were a hardware |
8683 | watchpoint. */ | |
8684 | ||
c906108c | 8685 | static int |
a1398e0c | 8686 | hw_watchpoint_use_count (struct breakpoint *b) |
c906108c | 8687 | { |
c906108c | 8688 | int i = 0; |
e09342b5 | 8689 | struct bp_location *bl; |
c906108c | 8690 | |
a1398e0c PA |
8691 | if (!breakpoint_enabled (b)) |
8692 | return 0; | |
8693 | ||
8694 | for (bl = b->loc; bl; bl = bl->next) | |
8695 | { | |
8696 | /* Special types of hardware watchpoints may use more than | |
8697 | one register. */ | |
8698 | i += b->ops->resources_needed (bl); | |
8699 | } | |
8700 | ||
8701 | return i; | |
8702 | } | |
8703 | ||
8704 | /* Returns the sum the used resources of all hardware watchpoints of | |
8705 | type TYPE in the breakpoints list. Also returns in OTHER_TYPE_USED | |
8706 | the sum of the used resources of all hardware watchpoints of other | |
8707 | types _not_ TYPE. */ | |
8708 | ||
8709 | static int | |
8710 | hw_watchpoint_used_count_others (struct breakpoint *except, | |
8711 | enum bptype type, int *other_type_used) | |
8712 | { | |
8713 | int i = 0; | |
8714 | struct breakpoint *b; | |
8715 | ||
c906108c SS |
8716 | *other_type_used = 0; |
8717 | ALL_BREAKPOINTS (b) | |
e09342b5 | 8718 | { |
a1398e0c PA |
8719 | if (b == except) |
8720 | continue; | |
e09342b5 TJB |
8721 | if (!breakpoint_enabled (b)) |
8722 | continue; | |
8723 | ||
a1398e0c PA |
8724 | if (b->type == type) |
8725 | i += hw_watchpoint_use_count (b); | |
8726 | else if (is_hardware_watchpoint (b)) | |
8727 | *other_type_used = 1; | |
e09342b5 TJB |
8728 | } |
8729 | ||
c906108c SS |
8730 | return i; |
8731 | } | |
8732 | ||
c906108c | 8733 | void |
fba45db2 | 8734 | disable_watchpoints_before_interactive_call_start (void) |
c906108c | 8735 | { |
c5aa993b | 8736 | struct breakpoint *b; |
c906108c SS |
8737 | |
8738 | ALL_BREAKPOINTS (b) | |
c5aa993b | 8739 | { |
cc60f2e3 | 8740 | if (is_watchpoint (b) && breakpoint_enabled (b)) |
c5aa993b | 8741 | { |
b5de0fa7 | 8742 | b->enable_state = bp_call_disabled; |
44702360 | 8743 | update_global_location_list (UGLL_DONT_INSERT); |
c5aa993b JM |
8744 | } |
8745 | } | |
c906108c SS |
8746 | } |
8747 | ||
8748 | void | |
fba45db2 | 8749 | enable_watchpoints_after_interactive_call_stop (void) |
c906108c | 8750 | { |
c5aa993b | 8751 | struct breakpoint *b; |
c906108c SS |
8752 | |
8753 | ALL_BREAKPOINTS (b) | |
c5aa993b | 8754 | { |
cc60f2e3 | 8755 | if (is_watchpoint (b) && b->enable_state == bp_call_disabled) |
c5aa993b | 8756 | { |
b5de0fa7 | 8757 | b->enable_state = bp_enabled; |
44702360 | 8758 | update_global_location_list (UGLL_MAY_INSERT); |
c5aa993b JM |
8759 | } |
8760 | } | |
c906108c SS |
8761 | } |
8762 | ||
8bea4e01 UW |
8763 | void |
8764 | disable_breakpoints_before_startup (void) | |
8765 | { | |
6c95b8df | 8766 | current_program_space->executing_startup = 1; |
44702360 | 8767 | update_global_location_list (UGLL_DONT_INSERT); |
8bea4e01 UW |
8768 | } |
8769 | ||
8770 | void | |
8771 | enable_breakpoints_after_startup (void) | |
8772 | { | |
6c95b8df | 8773 | current_program_space->executing_startup = 0; |
f8eba3c6 | 8774 | breakpoint_re_set (); |
8bea4e01 UW |
8775 | } |
8776 | ||
7c16b83e PA |
8777 | /* Create a new single-step breakpoint for thread THREAD, with no |
8778 | locations. */ | |
c906108c | 8779 | |
7c16b83e PA |
8780 | static struct breakpoint * |
8781 | new_single_step_breakpoint (int thread, struct gdbarch *gdbarch) | |
8782 | { | |
8783 | struct breakpoint *b = XNEW (struct breakpoint); | |
8784 | ||
8785 | init_raw_breakpoint_without_location (b, gdbarch, bp_single_step, | |
8786 | &momentary_breakpoint_ops); | |
8787 | ||
8788 | b->disposition = disp_donttouch; | |
8789 | b->frame_id = null_frame_id; | |
8790 | ||
8791 | b->thread = thread; | |
8792 | gdb_assert (b->thread != 0); | |
8793 | ||
8794 | add_to_breakpoint_chain (b); | |
8795 | ||
8796 | return b; | |
8797 | } | |
8798 | ||
8799 | /* Set a momentary breakpoint of type TYPE at address specified by | |
8800 | SAL. If FRAME_ID is valid, the breakpoint is restricted to that | |
8801 | frame. */ | |
c906108c SS |
8802 | |
8803 | struct breakpoint * | |
a6d9a66e UW |
8804 | set_momentary_breakpoint (struct gdbarch *gdbarch, struct symtab_and_line sal, |
8805 | struct frame_id frame_id, enum bptype type) | |
c906108c | 8806 | { |
52f0bd74 | 8807 | struct breakpoint *b; |
edb3359d | 8808 | |
193facb3 JK |
8809 | /* If FRAME_ID is valid, it should be a real frame, not an inlined or |
8810 | tail-called one. */ | |
8811 | gdb_assert (!frame_id_artificial_p (frame_id)); | |
edb3359d | 8812 | |
06edf0c0 | 8813 | b = set_raw_breakpoint (gdbarch, sal, type, &momentary_breakpoint_ops); |
b5de0fa7 EZ |
8814 | b->enable_state = bp_enabled; |
8815 | b->disposition = disp_donttouch; | |
818dd999 | 8816 | b->frame_id = frame_id; |
c906108c | 8817 | |
4a64f543 MS |
8818 | /* If we're debugging a multi-threaded program, then we want |
8819 | momentary breakpoints to be active in only a single thread of | |
8820 | control. */ | |
39f77062 KB |
8821 | if (in_thread_list (inferior_ptid)) |
8822 | b->thread = pid_to_thread_id (inferior_ptid); | |
c906108c | 8823 | |
44702360 | 8824 | update_global_location_list_nothrow (UGLL_MAY_INSERT); |
74960c60 | 8825 | |
c906108c SS |
8826 | return b; |
8827 | } | |
611c83ae | 8828 | |
06edf0c0 | 8829 | /* Make a momentary breakpoint based on the master breakpoint ORIG. |
a1aa2221 LM |
8830 | The new breakpoint will have type TYPE, use OPS as its |
8831 | breakpoint_ops, and will set enabled to LOC_ENABLED. */ | |
e58b0e63 | 8832 | |
06edf0c0 PA |
8833 | static struct breakpoint * |
8834 | momentary_breakpoint_from_master (struct breakpoint *orig, | |
8835 | enum bptype type, | |
a1aa2221 LM |
8836 | const struct breakpoint_ops *ops, |
8837 | int loc_enabled) | |
e58b0e63 PA |
8838 | { |
8839 | struct breakpoint *copy; | |
8840 | ||
06edf0c0 | 8841 | copy = set_raw_breakpoint_without_location (orig->gdbarch, type, ops); |
e58b0e63 | 8842 | copy->loc = allocate_bp_location (copy); |
0e30163f | 8843 | set_breakpoint_location_function (copy->loc, 1); |
e58b0e63 | 8844 | |
a6d9a66e | 8845 | copy->loc->gdbarch = orig->loc->gdbarch; |
e58b0e63 PA |
8846 | copy->loc->requested_address = orig->loc->requested_address; |
8847 | copy->loc->address = orig->loc->address; | |
8848 | copy->loc->section = orig->loc->section; | |
6c95b8df | 8849 | copy->loc->pspace = orig->loc->pspace; |
55aa24fb | 8850 | copy->loc->probe = orig->loc->probe; |
f8eba3c6 | 8851 | copy->loc->line_number = orig->loc->line_number; |
2f202fde | 8852 | copy->loc->symtab = orig->loc->symtab; |
a1aa2221 | 8853 | copy->loc->enabled = loc_enabled; |
e58b0e63 PA |
8854 | copy->frame_id = orig->frame_id; |
8855 | copy->thread = orig->thread; | |
6c95b8df | 8856 | copy->pspace = orig->pspace; |
e58b0e63 PA |
8857 | |
8858 | copy->enable_state = bp_enabled; | |
8859 | copy->disposition = disp_donttouch; | |
8860 | copy->number = internal_breakpoint_number--; | |
8861 | ||
44702360 | 8862 | update_global_location_list_nothrow (UGLL_DONT_INSERT); |
e58b0e63 PA |
8863 | return copy; |
8864 | } | |
8865 | ||
06edf0c0 PA |
8866 | /* Make a deep copy of momentary breakpoint ORIG. Returns NULL if |
8867 | ORIG is NULL. */ | |
8868 | ||
8869 | struct breakpoint * | |
8870 | clone_momentary_breakpoint (struct breakpoint *orig) | |
8871 | { | |
8872 | /* If there's nothing to clone, then return nothing. */ | |
8873 | if (orig == NULL) | |
8874 | return NULL; | |
8875 | ||
a1aa2221 | 8876 | return momentary_breakpoint_from_master (orig, orig->type, orig->ops, 0); |
06edf0c0 PA |
8877 | } |
8878 | ||
611c83ae | 8879 | struct breakpoint * |
a6d9a66e UW |
8880 | set_momentary_breakpoint_at_pc (struct gdbarch *gdbarch, CORE_ADDR pc, |
8881 | enum bptype type) | |
611c83ae PA |
8882 | { |
8883 | struct symtab_and_line sal; | |
8884 | ||
8885 | sal = find_pc_line (pc, 0); | |
8886 | sal.pc = pc; | |
8887 | sal.section = find_pc_overlay (pc); | |
8888 | sal.explicit_pc = 1; | |
8889 | ||
a6d9a66e | 8890 | return set_momentary_breakpoint (gdbarch, sal, null_frame_id, type); |
611c83ae | 8891 | } |
c906108c | 8892 | \f |
c5aa993b | 8893 | |
c906108c SS |
8894 | /* Tell the user we have just set a breakpoint B. */ |
8895 | ||
8896 | static void | |
fba45db2 | 8897 | mention (struct breakpoint *b) |
c906108c | 8898 | { |
348d480f | 8899 | b->ops->print_mention (b); |
79a45e25 | 8900 | if (ui_out_is_mi_like_p (current_uiout)) |
fb40c209 | 8901 | return; |
c906108c SS |
8902 | printf_filtered ("\n"); |
8903 | } | |
c906108c | 8904 | \f |
c5aa993b | 8905 | |
1a853c52 PA |
8906 | static int bp_loc_is_permanent (struct bp_location *loc); |
8907 | ||
0d381245 | 8908 | static struct bp_location * |
39d61571 | 8909 | add_location_to_breakpoint (struct breakpoint *b, |
0d381245 VP |
8910 | const struct symtab_and_line *sal) |
8911 | { | |
8912 | struct bp_location *loc, **tmp; | |
3742cc8b YQ |
8913 | CORE_ADDR adjusted_address; |
8914 | struct gdbarch *loc_gdbarch = get_sal_arch (*sal); | |
8915 | ||
8916 | if (loc_gdbarch == NULL) | |
8917 | loc_gdbarch = b->gdbarch; | |
8918 | ||
8919 | /* Adjust the breakpoint's address prior to allocating a location. | |
8920 | Once we call allocate_bp_location(), that mostly uninitialized | |
8921 | location will be placed on the location chain. Adjustment of the | |
8922 | breakpoint may cause target_read_memory() to be called and we do | |
8923 | not want its scan of the location chain to find a breakpoint and | |
8924 | location that's only been partially initialized. */ | |
8925 | adjusted_address = adjust_breakpoint_address (loc_gdbarch, | |
8926 | sal->pc, b->type); | |
0d381245 | 8927 | |
d30113d4 | 8928 | /* Sort the locations by their ADDRESS. */ |
39d61571 | 8929 | loc = allocate_bp_location (b); |
d30113d4 JK |
8930 | for (tmp = &(b->loc); *tmp != NULL && (*tmp)->address <= adjusted_address; |
8931 | tmp = &((*tmp)->next)) | |
0d381245 | 8932 | ; |
d30113d4 | 8933 | loc->next = *tmp; |
0d381245 | 8934 | *tmp = loc; |
3742cc8b | 8935 | |
0d381245 | 8936 | loc->requested_address = sal->pc; |
3742cc8b | 8937 | loc->address = adjusted_address; |
6c95b8df | 8938 | loc->pspace = sal->pspace; |
729662a5 TT |
8939 | loc->probe.probe = sal->probe; |
8940 | loc->probe.objfile = sal->objfile; | |
6c95b8df | 8941 | gdb_assert (loc->pspace != NULL); |
0d381245 | 8942 | loc->section = sal->section; |
3742cc8b | 8943 | loc->gdbarch = loc_gdbarch; |
f8eba3c6 | 8944 | loc->line_number = sal->line; |
2f202fde | 8945 | loc->symtab = sal->symtab; |
f8eba3c6 | 8946 | |
0e30163f JK |
8947 | set_breakpoint_location_function (loc, |
8948 | sal->explicit_pc || sal->explicit_line); | |
1a853c52 | 8949 | |
6ae88661 LM |
8950 | /* While by definition, permanent breakpoints are already present in the |
8951 | code, we don't mark the location as inserted. Normally one would expect | |
8952 | that GDB could rely on that breakpoint instruction to stop the program, | |
8953 | thus removing the need to insert its own breakpoint, except that executing | |
8954 | the breakpoint instruction can kill the target instead of reporting a | |
8955 | SIGTRAP. E.g., on SPARC, when interrupts are disabled, executing the | |
8956 | instruction resets the CPU, so QEMU 2.0.0 for SPARC correspondingly dies | |
8957 | with "Trap 0x02 while interrupts disabled, Error state". Letting the | |
8958 | breakpoint be inserted normally results in QEMU knowing about the GDB | |
8959 | breakpoint, and thus trap before the breakpoint instruction is executed. | |
8960 | (If GDB later needs to continue execution past the permanent breakpoint, | |
8961 | it manually increments the PC, thus avoiding executing the breakpoint | |
8962 | instruction.) */ | |
1a853c52 | 8963 | if (bp_loc_is_permanent (loc)) |
6ae88661 | 8964 | loc->permanent = 1; |
1a853c52 | 8965 | |
0d381245 VP |
8966 | return loc; |
8967 | } | |
514f746b AR |
8968 | \f |
8969 | ||
1cf4d951 | 8970 | /* See breakpoint.h. */ |
514f746b | 8971 | |
1cf4d951 PA |
8972 | int |
8973 | program_breakpoint_here_p (struct gdbarch *gdbarch, CORE_ADDR address) | |
514f746b AR |
8974 | { |
8975 | int len; | |
8976 | CORE_ADDR addr; | |
1afeeb75 | 8977 | const gdb_byte *bpoint; |
514f746b | 8978 | gdb_byte *target_mem; |
939c61fa JK |
8979 | struct cleanup *cleanup; |
8980 | int retval = 0; | |
514f746b | 8981 | |
1cf4d951 PA |
8982 | addr = address; |
8983 | bpoint = gdbarch_breakpoint_from_pc (gdbarch, &addr, &len); | |
8984 | ||
8985 | /* Software breakpoints unsupported? */ | |
8986 | if (bpoint == NULL) | |
8987 | return 0; | |
8988 | ||
224c3ddb | 8989 | target_mem = (gdb_byte *) alloca (len); |
1cf4d951 PA |
8990 | |
8991 | /* Enable the automatic memory restoration from breakpoints while | |
8992 | we read the memory. Otherwise we could say about our temporary | |
8993 | breakpoints they are permanent. */ | |
8994 | cleanup = make_show_memory_breakpoints_cleanup (0); | |
8995 | ||
8996 | if (target_read_memory (address, target_mem, len) == 0 | |
8997 | && memcmp (target_mem, bpoint, len) == 0) | |
8998 | retval = 1; | |
8999 | ||
9000 | do_cleanups (cleanup); | |
9001 | ||
9002 | return retval; | |
9003 | } | |
9004 | ||
9005 | /* Return 1 if LOC is pointing to a permanent breakpoint, | |
9006 | return 0 otherwise. */ | |
9007 | ||
9008 | static int | |
9009 | bp_loc_is_permanent (struct bp_location *loc) | |
9010 | { | |
9011 | struct cleanup *cleanup; | |
9012 | int retval; | |
9013 | ||
514f746b AR |
9014 | gdb_assert (loc != NULL); |
9015 | ||
244558af LM |
9016 | /* If we have a catchpoint or a watchpoint, just return 0. We should not |
9017 | attempt to read from the addresses the locations of these breakpoint types | |
9018 | point to. program_breakpoint_here_p, below, will attempt to read | |
9019 | memory. */ | |
9020 | if (!breakpoint_address_is_meaningful (loc->owner)) | |
9021 | return 0; | |
9022 | ||
6c95b8df | 9023 | cleanup = save_current_space_and_thread (); |
6c95b8df | 9024 | switch_to_program_space_and_thread (loc->pspace); |
939c61fa | 9025 | |
1cf4d951 | 9026 | retval = program_breakpoint_here_p (loc->gdbarch, loc->address); |
514f746b | 9027 | |
939c61fa JK |
9028 | do_cleanups (cleanup); |
9029 | ||
9030 | return retval; | |
514f746b AR |
9031 | } |
9032 | ||
e7e0cddf SS |
9033 | /* Build a command list for the dprintf corresponding to the current |
9034 | settings of the dprintf style options. */ | |
9035 | ||
9036 | static void | |
9037 | update_dprintf_command_list (struct breakpoint *b) | |
9038 | { | |
9039 | char *dprintf_args = b->extra_string; | |
9040 | char *printf_line = NULL; | |
9041 | ||
9042 | if (!dprintf_args) | |
9043 | return; | |
9044 | ||
9045 | dprintf_args = skip_spaces (dprintf_args); | |
9046 | ||
9047 | /* Allow a comma, as it may have terminated a location, but don't | |
9048 | insist on it. */ | |
9049 | if (*dprintf_args == ',') | |
9050 | ++dprintf_args; | |
9051 | dprintf_args = skip_spaces (dprintf_args); | |
9052 | ||
9053 | if (*dprintf_args != '"') | |
9054 | error (_("Bad format string, missing '\"'.")); | |
9055 | ||
d3ce09f5 | 9056 | if (strcmp (dprintf_style, dprintf_style_gdb) == 0) |
e7e0cddf | 9057 | printf_line = xstrprintf ("printf %s", dprintf_args); |
d3ce09f5 | 9058 | else if (strcmp (dprintf_style, dprintf_style_call) == 0) |
e7e0cddf SS |
9059 | { |
9060 | if (!dprintf_function) | |
9061 | error (_("No function supplied for dprintf call")); | |
9062 | ||
9063 | if (dprintf_channel && strlen (dprintf_channel) > 0) | |
9064 | printf_line = xstrprintf ("call (void) %s (%s,%s)", | |
9065 | dprintf_function, | |
9066 | dprintf_channel, | |
9067 | dprintf_args); | |
9068 | else | |
9069 | printf_line = xstrprintf ("call (void) %s (%s)", | |
9070 | dprintf_function, | |
9071 | dprintf_args); | |
9072 | } | |
d3ce09f5 SS |
9073 | else if (strcmp (dprintf_style, dprintf_style_agent) == 0) |
9074 | { | |
9075 | if (target_can_run_breakpoint_commands ()) | |
9076 | printf_line = xstrprintf ("agent-printf %s", dprintf_args); | |
9077 | else | |
9078 | { | |
9079 | warning (_("Target cannot run dprintf commands, falling back to GDB printf")); | |
9080 | printf_line = xstrprintf ("printf %s", dprintf_args); | |
9081 | } | |
9082 | } | |
e7e0cddf SS |
9083 | else |
9084 | internal_error (__FILE__, __LINE__, | |
9085 | _("Invalid dprintf style.")); | |
9086 | ||
f28045c2 | 9087 | gdb_assert (printf_line != NULL); |
9d6e6e84 | 9088 | /* Manufacture a printf sequence. */ |
f28045c2 | 9089 | { |
8d749320 | 9090 | struct command_line *printf_cmd_line = XNEW (struct command_line); |
e7e0cddf | 9091 | |
f28045c2 YQ |
9092 | printf_cmd_line->control_type = simple_control; |
9093 | printf_cmd_line->body_count = 0; | |
9094 | printf_cmd_line->body_list = NULL; | |
9d6e6e84 | 9095 | printf_cmd_line->next = NULL; |
f28045c2 | 9096 | printf_cmd_line->line = printf_line; |
e7e0cddf | 9097 | |
f28045c2 YQ |
9098 | breakpoint_set_commands (b, printf_cmd_line); |
9099 | } | |
e7e0cddf SS |
9100 | } |
9101 | ||
9102 | /* Update all dprintf commands, making their command lists reflect | |
9103 | current style settings. */ | |
9104 | ||
9105 | static void | |
9106 | update_dprintf_commands (char *args, int from_tty, | |
9107 | struct cmd_list_element *c) | |
9108 | { | |
9109 | struct breakpoint *b; | |
9110 | ||
9111 | ALL_BREAKPOINTS (b) | |
9112 | { | |
9113 | if (b->type == bp_dprintf) | |
9114 | update_dprintf_command_list (b); | |
9115 | } | |
9116 | } | |
c3f6f71d | 9117 | |
f00aae0f KS |
9118 | /* Create a breakpoint with SAL as location. Use LOCATION |
9119 | as a description of the location, and COND_STRING | |
db107f19 | 9120 | as condition expression. */ |
018d34a4 VP |
9121 | |
9122 | static void | |
d9b3f62e | 9123 | init_breakpoint_sal (struct breakpoint *b, struct gdbarch *gdbarch, |
f00aae0f KS |
9124 | struct symtabs_and_lines sals, |
9125 | struct event_location *location, | |
f8eba3c6 | 9126 | char *filter, char *cond_string, |
e7e0cddf | 9127 | char *extra_string, |
d9b3f62e PA |
9128 | enum bptype type, enum bpdisp disposition, |
9129 | int thread, int task, int ignore_count, | |
c0a91b2b | 9130 | const struct breakpoint_ops *ops, int from_tty, |
44f238bb PA |
9131 | int enabled, int internal, unsigned flags, |
9132 | int display_canonical) | |
018d34a4 | 9133 | { |
0d381245 | 9134 | int i; |
018d34a4 VP |
9135 | |
9136 | if (type == bp_hardware_breakpoint) | |
9137 | { | |
fbbd034e AS |
9138 | int target_resources_ok; |
9139 | ||
9140 | i = hw_breakpoint_used_count (); | |
9141 | target_resources_ok = | |
9142 | target_can_use_hardware_watchpoint (bp_hardware_breakpoint, | |
018d34a4 VP |
9143 | i + 1, 0); |
9144 | if (target_resources_ok == 0) | |
9145 | error (_("No hardware breakpoint support in the target.")); | |
9146 | else if (target_resources_ok < 0) | |
9147 | error (_("Hardware breakpoints used exceeds limit.")); | |
9148 | } | |
9149 | ||
6c95b8df PA |
9150 | gdb_assert (sals.nelts > 0); |
9151 | ||
0d381245 VP |
9152 | for (i = 0; i < sals.nelts; ++i) |
9153 | { | |
9154 | struct symtab_and_line sal = sals.sals[i]; | |
9155 | struct bp_location *loc; | |
9156 | ||
9157 | if (from_tty) | |
5af949e3 UW |
9158 | { |
9159 | struct gdbarch *loc_gdbarch = get_sal_arch (sal); | |
9160 | if (!loc_gdbarch) | |
9161 | loc_gdbarch = gdbarch; | |
9162 | ||
9163 | describe_other_breakpoints (loc_gdbarch, | |
6c95b8df | 9164 | sal.pspace, sal.pc, sal.section, thread); |
5af949e3 | 9165 | } |
0d381245 VP |
9166 | |
9167 | if (i == 0) | |
9168 | { | |
d9b3f62e | 9169 | init_raw_breakpoint (b, gdbarch, sal, type, ops); |
0d381245 | 9170 | b->thread = thread; |
4a306c9a | 9171 | b->task = task; |
855a6e68 | 9172 | |
0d381245 | 9173 | b->cond_string = cond_string; |
e7e0cddf | 9174 | b->extra_string = extra_string; |
0d381245 | 9175 | b->ignore_count = ignore_count; |
41447f92 | 9176 | b->enable_state = enabled ? bp_enabled : bp_disabled; |
0d381245 | 9177 | b->disposition = disposition; |
6c95b8df | 9178 | |
44f238bb PA |
9179 | if ((flags & CREATE_BREAKPOINT_FLAGS_INSERTED) != 0) |
9180 | b->loc->inserted = 1; | |
9181 | ||
0fb4aa4b PA |
9182 | if (type == bp_static_tracepoint) |
9183 | { | |
d9b3f62e | 9184 | struct tracepoint *t = (struct tracepoint *) b; |
0fb4aa4b PA |
9185 | struct static_tracepoint_marker marker; |
9186 | ||
983af33b | 9187 | if (strace_marker_p (b)) |
0fb4aa4b PA |
9188 | { |
9189 | /* We already know the marker exists, otherwise, we | |
9190 | wouldn't see a sal for it. */ | |
f00aae0f KS |
9191 | const char *p = &event_location_to_string (b->location)[3]; |
9192 | const char *endp; | |
0fb4aa4b | 9193 | char *marker_str; |
0fb4aa4b | 9194 | |
f00aae0f | 9195 | p = skip_spaces_const (p); |
0fb4aa4b | 9196 | |
f00aae0f | 9197 | endp = skip_to_space_const (p); |
0fb4aa4b PA |
9198 | |
9199 | marker_str = savestring (p, endp - p); | |
d9b3f62e | 9200 | t->static_trace_marker_id = marker_str; |
0fb4aa4b | 9201 | |
3e43a32a MS |
9202 | printf_filtered (_("Probed static tracepoint " |
9203 | "marker \"%s\"\n"), | |
d9b3f62e | 9204 | t->static_trace_marker_id); |
0fb4aa4b PA |
9205 | } |
9206 | else if (target_static_tracepoint_marker_at (sal.pc, &marker)) | |
9207 | { | |
d9b3f62e | 9208 | t->static_trace_marker_id = xstrdup (marker.str_id); |
0fb4aa4b PA |
9209 | release_static_tracepoint_marker (&marker); |
9210 | ||
3e43a32a MS |
9211 | printf_filtered (_("Probed static tracepoint " |
9212 | "marker \"%s\"\n"), | |
d9b3f62e | 9213 | t->static_trace_marker_id); |
0fb4aa4b PA |
9214 | } |
9215 | else | |
3e43a32a MS |
9216 | warning (_("Couldn't determine the static " |
9217 | "tracepoint marker to probe")); | |
0fb4aa4b PA |
9218 | } |
9219 | ||
0d381245 VP |
9220 | loc = b->loc; |
9221 | } | |
9222 | else | |
018d34a4 | 9223 | { |
39d61571 | 9224 | loc = add_location_to_breakpoint (b, &sal); |
44f238bb PA |
9225 | if ((flags & CREATE_BREAKPOINT_FLAGS_INSERTED) != 0) |
9226 | loc->inserted = 1; | |
0d381245 VP |
9227 | } |
9228 | ||
9229 | if (b->cond_string) | |
9230 | { | |
bbc13ae3 KS |
9231 | const char *arg = b->cond_string; |
9232 | ||
1bb9788d TT |
9233 | loc->cond = parse_exp_1 (&arg, loc->address, |
9234 | block_for_pc (loc->address), 0); | |
0d381245 | 9235 | if (*arg) |
588ae58c | 9236 | error (_("Garbage '%s' follows condition"), arg); |
018d34a4 | 9237 | } |
e7e0cddf SS |
9238 | |
9239 | /* Dynamic printf requires and uses additional arguments on the | |
9240 | command line, otherwise it's an error. */ | |
9241 | if (type == bp_dprintf) | |
9242 | { | |
9243 | if (b->extra_string) | |
9244 | update_dprintf_command_list (b); | |
9245 | else | |
9246 | error (_("Format string required")); | |
9247 | } | |
9248 | else if (b->extra_string) | |
588ae58c | 9249 | error (_("Garbage '%s' at end of command"), b->extra_string); |
855a6e68 | 9250 | } |
018d34a4 | 9251 | |
56435ebe | 9252 | b->display_canonical = display_canonical; |
f00aae0f KS |
9253 | if (location != NULL) |
9254 | b->location = location; | |
018d34a4 | 9255 | else |
a06efdd6 | 9256 | b->location = new_address_location (b->loc->address); |
f8eba3c6 | 9257 | b->filter = filter; |
d9b3f62e | 9258 | } |
018d34a4 | 9259 | |
d9b3f62e PA |
9260 | static void |
9261 | create_breakpoint_sal (struct gdbarch *gdbarch, | |
f00aae0f KS |
9262 | struct symtabs_and_lines sals, |
9263 | struct event_location *location, | |
f8eba3c6 | 9264 | char *filter, char *cond_string, |
e7e0cddf | 9265 | char *extra_string, |
d9b3f62e PA |
9266 | enum bptype type, enum bpdisp disposition, |
9267 | int thread, int task, int ignore_count, | |
c0a91b2b | 9268 | const struct breakpoint_ops *ops, int from_tty, |
44f238bb PA |
9269 | int enabled, int internal, unsigned flags, |
9270 | int display_canonical) | |
d9b3f62e PA |
9271 | { |
9272 | struct breakpoint *b; | |
9273 | struct cleanup *old_chain; | |
9274 | ||
9275 | if (is_tracepoint_type (type)) | |
9276 | { | |
9277 | struct tracepoint *t; | |
9278 | ||
9279 | t = XCNEW (struct tracepoint); | |
9280 | b = &t->base; | |
9281 | } | |
9282 | else | |
9283 | b = XNEW (struct breakpoint); | |
9284 | ||
9285 | old_chain = make_cleanup (xfree, b); | |
9286 | ||
9287 | init_breakpoint_sal (b, gdbarch, | |
f00aae0f | 9288 | sals, location, |
e7e0cddf | 9289 | filter, cond_string, extra_string, |
d9b3f62e PA |
9290 | type, disposition, |
9291 | thread, task, ignore_count, | |
9292 | ops, from_tty, | |
44f238bb PA |
9293 | enabled, internal, flags, |
9294 | display_canonical); | |
d9b3f62e PA |
9295 | discard_cleanups (old_chain); |
9296 | ||
3ea46bff | 9297 | install_breakpoint (internal, b, 0); |
018d34a4 VP |
9298 | } |
9299 | ||
9300 | /* Add SALS.nelts breakpoints to the breakpoint table. For each | |
9301 | SALS.sal[i] breakpoint, include the corresponding ADDR_STRING[i] | |
9302 | value. COND_STRING, if not NULL, specified the condition to be | |
9303 | used for all breakpoints. Essentially the only case where | |
9304 | SALS.nelts is not 1 is when we set a breakpoint on an overloaded | |
9305 | function. In that case, it's still not possible to specify | |
9306 | separate conditions for different overloaded functions, so | |
9307 | we take just a single condition string. | |
9308 | ||
c3f6f71d | 9309 | NOTE: If the function succeeds, the caller is expected to cleanup |
018d34a4 | 9310 | the arrays ADDR_STRING, COND_STRING, and SALS (but not the |
c3f6f71d JM |
9311 | array contents). If the function fails (error() is called), the |
9312 | caller is expected to cleanups both the ADDR_STRING, COND_STRING, | |
4a64f543 | 9313 | COND and SALS arrays and each of those arrays contents. */ |
c906108c SS |
9314 | |
9315 | static void | |
8cdf0e15 | 9316 | create_breakpoints_sal (struct gdbarch *gdbarch, |
7efd8fc2 | 9317 | struct linespec_result *canonical, |
e7e0cddf | 9318 | char *cond_string, char *extra_string, |
8cdf0e15 VP |
9319 | enum bptype type, enum bpdisp disposition, |
9320 | int thread, int task, int ignore_count, | |
c0a91b2b | 9321 | const struct breakpoint_ops *ops, int from_tty, |
44f238bb | 9322 | int enabled, int internal, unsigned flags) |
c906108c | 9323 | { |
018d34a4 | 9324 | int i; |
f8eba3c6 | 9325 | struct linespec_sals *lsal; |
cc59ec59 | 9326 | |
f8eba3c6 TT |
9327 | if (canonical->pre_expanded) |
9328 | gdb_assert (VEC_length (linespec_sals, canonical->sals) == 1); | |
9329 | ||
9330 | for (i = 0; VEC_iterate (linespec_sals, canonical->sals, i, lsal); ++i) | |
c3f6f71d | 9331 | { |
f00aae0f | 9332 | /* Note that 'location' can be NULL in the case of a plain |
f8eba3c6 | 9333 | 'break', without arguments. */ |
f00aae0f KS |
9334 | struct event_location *location |
9335 | = (canonical->location != NULL | |
9336 | ? copy_event_location (canonical->location) : NULL); | |
f8eba3c6 | 9337 | char *filter_string = lsal->canonical ? xstrdup (lsal->canonical) : NULL; |
f00aae0f | 9338 | struct cleanup *inner = make_cleanup_delete_event_location (location); |
0d381245 | 9339 | |
f8eba3c6 TT |
9340 | make_cleanup (xfree, filter_string); |
9341 | create_breakpoint_sal (gdbarch, lsal->sals, | |
f00aae0f | 9342 | location, |
f8eba3c6 | 9343 | filter_string, |
e7e0cddf SS |
9344 | cond_string, extra_string, |
9345 | type, disposition, | |
84f4c1fe | 9346 | thread, task, ignore_count, ops, |
44f238bb | 9347 | from_tty, enabled, internal, flags, |
56435ebe | 9348 | canonical->special_display); |
f8eba3c6 | 9349 | discard_cleanups (inner); |
c3f6f71d | 9350 | } |
c3f6f71d | 9351 | } |
c906108c | 9352 | |
f00aae0f | 9353 | /* Parse LOCATION which is assumed to be a SAL specification possibly |
c3f6f71d | 9354 | followed by conditionals. On return, SALS contains an array of SAL |
f00aae0f KS |
9355 | addresses found. LOCATION points to the end of the SAL (for |
9356 | linespec locations). | |
9998af43 TJB |
9357 | |
9358 | The array and the line spec strings are allocated on the heap, it is | |
9359 | the caller's responsibility to free them. */ | |
c906108c | 9360 | |
b9362cc7 | 9361 | static void |
f00aae0f | 9362 | parse_breakpoint_sals (const struct event_location *location, |
58438ac1 | 9363 | struct linespec_result *canonical) |
c3f6f71d | 9364 | { |
f00aae0f KS |
9365 | struct symtab_and_line cursal; |
9366 | ||
9367 | if (event_location_type (location) == LINESPEC_LOCATION) | |
9368 | { | |
9369 | const char *address = get_linespec_location (location); | |
9370 | ||
9371 | if (address == NULL) | |
9372 | { | |
9373 | /* The last displayed codepoint, if it's valid, is our default | |
9374 | breakpoint address. */ | |
9375 | if (last_displayed_sal_is_valid ()) | |
9376 | { | |
9377 | struct linespec_sals lsal; | |
9378 | struct symtab_and_line sal; | |
9379 | CORE_ADDR pc; | |
9380 | ||
9381 | init_sal (&sal); /* Initialize to zeroes. */ | |
8d749320 | 9382 | lsal.sals.sals = XNEW (struct symtab_and_line); |
f00aae0f KS |
9383 | |
9384 | /* Set sal's pspace, pc, symtab, and line to the values | |
9385 | corresponding to the last call to print_frame_info. | |
9386 | Be sure to reinitialize LINE with NOTCURRENT == 0 | |
9387 | as the breakpoint line number is inappropriate otherwise. | |
9388 | find_pc_line would adjust PC, re-set it back. */ | |
9389 | get_last_displayed_sal (&sal); | |
9390 | pc = sal.pc; | |
9391 | sal = find_pc_line (pc, 0); | |
9392 | ||
9393 | /* "break" without arguments is equivalent to "break *PC" | |
9394 | where PC is the last displayed codepoint's address. So | |
9395 | make sure to set sal.explicit_pc to prevent GDB from | |
9396 | trying to expand the list of sals to include all other | |
9397 | instances with the same symtab and line. */ | |
9398 | sal.pc = pc; | |
9399 | sal.explicit_pc = 1; | |
9400 | ||
9401 | lsal.sals.sals[0] = sal; | |
9402 | lsal.sals.nelts = 1; | |
9403 | lsal.canonical = NULL; | |
9404 | ||
9405 | VEC_safe_push (linespec_sals, canonical->sals, &lsal); | |
9406 | return; | |
9407 | } | |
9408 | else | |
9409 | error (_("No default breakpoint address now.")); | |
c906108c | 9410 | } |
c906108c | 9411 | } |
f00aae0f KS |
9412 | |
9413 | /* Force almost all breakpoints to be in terms of the | |
9414 | current_source_symtab (which is decode_line_1's default). | |
9415 | This should produce the results we want almost all of the | |
9416 | time while leaving default_breakpoint_* alone. | |
9417 | ||
9418 | ObjC: However, don't match an Objective-C method name which | |
9419 | may have a '+' or '-' succeeded by a '['. */ | |
9420 | cursal = get_current_source_symtab_and_line (); | |
9421 | if (last_displayed_sal_is_valid ()) | |
c906108c | 9422 | { |
f00aae0f | 9423 | const char *address = NULL; |
cc80f267 | 9424 | |
f00aae0f KS |
9425 | if (event_location_type (location) == LINESPEC_LOCATION) |
9426 | address = get_linespec_location (location); | |
cc80f267 | 9427 | |
f00aae0f KS |
9428 | if (!cursal.symtab |
9429 | || (address != NULL | |
9430 | && strchr ("+-", address[0]) != NULL | |
9431 | && address[1] != '[')) | |
9432 | { | |
9433 | decode_line_full (location, DECODE_LINE_FUNFIRSTLINE, | |
9434 | get_last_displayed_symtab (), | |
9435 | get_last_displayed_line (), | |
9436 | canonical, NULL, NULL); | |
9437 | return; | |
9438 | } | |
c906108c | 9439 | } |
f00aae0f KS |
9440 | |
9441 | decode_line_full (location, DECODE_LINE_FUNFIRSTLINE, | |
9442 | cursal.symtab, cursal.line, canonical, NULL, NULL); | |
c3f6f71d | 9443 | } |
c906108c | 9444 | |
c906108c | 9445 | |
c3f6f71d | 9446 | /* Convert each SAL into a real PC. Verify that the PC can be |
4a64f543 | 9447 | inserted as a breakpoint. If it can't throw an error. */ |
c906108c | 9448 | |
b9362cc7 | 9449 | static void |
23e7acfb | 9450 | breakpoint_sals_to_pc (struct symtabs_and_lines *sals) |
c3f6f71d JM |
9451 | { |
9452 | int i; | |
cc59ec59 | 9453 | |
c3f6f71d | 9454 | for (i = 0; i < sals->nelts; i++) |
ee53e872 | 9455 | resolve_sal_pc (&sals->sals[i]); |
c3f6f71d JM |
9456 | } |
9457 | ||
7a697b8d SS |
9458 | /* Fast tracepoints may have restrictions on valid locations. For |
9459 | instance, a fast tracepoint using a jump instead of a trap will | |
9460 | likely have to overwrite more bytes than a trap would, and so can | |
9461 | only be placed where the instruction is longer than the jump, or a | |
9462 | multi-instruction sequence does not have a jump into the middle of | |
9463 | it, etc. */ | |
9464 | ||
9465 | static void | |
9466 | check_fast_tracepoint_sals (struct gdbarch *gdbarch, | |
9467 | struct symtabs_and_lines *sals) | |
9468 | { | |
9469 | int i, rslt; | |
9470 | struct symtab_and_line *sal; | |
9471 | char *msg; | |
9472 | struct cleanup *old_chain; | |
9473 | ||
9474 | for (i = 0; i < sals->nelts; i++) | |
9475 | { | |
f8eba3c6 TT |
9476 | struct gdbarch *sarch; |
9477 | ||
7a697b8d SS |
9478 | sal = &sals->sals[i]; |
9479 | ||
f8eba3c6 TT |
9480 | sarch = get_sal_arch (*sal); |
9481 | /* We fall back to GDBARCH if there is no architecture | |
9482 | associated with SAL. */ | |
9483 | if (sarch == NULL) | |
9484 | sarch = gdbarch; | |
6b940e6a | 9485 | rslt = gdbarch_fast_tracepoint_valid_at (sarch, sal->pc, &msg); |
7a697b8d SS |
9486 | old_chain = make_cleanup (xfree, msg); |
9487 | ||
9488 | if (!rslt) | |
9489 | error (_("May not have a fast tracepoint at 0x%s%s"), | |
f8eba3c6 | 9490 | paddress (sarch, sal->pc), (msg ? msg : "")); |
7a697b8d SS |
9491 | |
9492 | do_cleanups (old_chain); | |
9493 | } | |
9494 | } | |
9495 | ||
af4908ba KS |
9496 | /* Issue an invalid thread ID error. */ |
9497 | ||
9498 | static void ATTRIBUTE_NORETURN | |
9499 | invalid_thread_id_error (int id) | |
9500 | { | |
9501 | error (_("Unknown thread %d."), id); | |
9502 | } | |
9503 | ||
018d34a4 VP |
9504 | /* Given TOK, a string specification of condition and thread, as |
9505 | accepted by the 'break' command, extract the condition | |
9506 | string and thread number and set *COND_STRING and *THREAD. | |
4a64f543 | 9507 | PC identifies the context at which the condition should be parsed. |
018d34a4 VP |
9508 | If no condition is found, *COND_STRING is set to NULL. |
9509 | If no thread is found, *THREAD is set to -1. */ | |
d634f2de JB |
9510 | |
9511 | static void | |
bbc13ae3 | 9512 | find_condition_and_thread (const char *tok, CORE_ADDR pc, |
e7e0cddf SS |
9513 | char **cond_string, int *thread, int *task, |
9514 | char **rest) | |
018d34a4 VP |
9515 | { |
9516 | *cond_string = NULL; | |
9517 | *thread = -1; | |
ed1d1739 KS |
9518 | *task = 0; |
9519 | *rest = NULL; | |
9520 | ||
018d34a4 VP |
9521 | while (tok && *tok) |
9522 | { | |
bbc13ae3 | 9523 | const char *end_tok; |
018d34a4 | 9524 | int toklen; |
bbc13ae3 KS |
9525 | const char *cond_start = NULL; |
9526 | const char *cond_end = NULL; | |
cc59ec59 | 9527 | |
bbc13ae3 | 9528 | tok = skip_spaces_const (tok); |
e7e0cddf SS |
9529 | |
9530 | if ((*tok == '"' || *tok == ',') && rest) | |
9531 | { | |
9532 | *rest = savestring (tok, strlen (tok)); | |
9533 | return; | |
9534 | } | |
9535 | ||
bbc13ae3 | 9536 | end_tok = skip_to_space_const (tok); |
d634f2de | 9537 | |
018d34a4 | 9538 | toklen = end_tok - tok; |
d634f2de | 9539 | |
018d34a4 VP |
9540 | if (toklen >= 1 && strncmp (tok, "if", toklen) == 0) |
9541 | { | |
f7545552 TT |
9542 | struct expression *expr; |
9543 | ||
018d34a4 | 9544 | tok = cond_start = end_tok + 1; |
1bb9788d | 9545 | expr = parse_exp_1 (&tok, pc, block_for_pc (pc), 0); |
f7545552 | 9546 | xfree (expr); |
018d34a4 | 9547 | cond_end = tok; |
d634f2de | 9548 | *cond_string = savestring (cond_start, cond_end - cond_start); |
018d34a4 VP |
9549 | } |
9550 | else if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0) | |
9551 | { | |
9552 | char *tmptok; | |
d634f2de | 9553 | |
018d34a4 | 9554 | tok = end_tok + 1; |
bbc13ae3 | 9555 | *thread = strtol (tok, &tmptok, 0); |
018d34a4 VP |
9556 | if (tok == tmptok) |
9557 | error (_("Junk after thread keyword.")); | |
9558 | if (!valid_thread_id (*thread)) | |
af4908ba | 9559 | invalid_thread_id_error (*thread); |
bbc13ae3 | 9560 | tok = tmptok; |
018d34a4 | 9561 | } |
4a306c9a JB |
9562 | else if (toklen >= 1 && strncmp (tok, "task", toklen) == 0) |
9563 | { | |
9564 | char *tmptok; | |
9565 | ||
9566 | tok = end_tok + 1; | |
bbc13ae3 | 9567 | *task = strtol (tok, &tmptok, 0); |
4a306c9a JB |
9568 | if (tok == tmptok) |
9569 | error (_("Junk after task keyword.")); | |
9570 | if (!valid_task_id (*task)) | |
b6199126 | 9571 | error (_("Unknown task %d."), *task); |
bbc13ae3 | 9572 | tok = tmptok; |
4a306c9a | 9573 | } |
e7e0cddf SS |
9574 | else if (rest) |
9575 | { | |
9576 | *rest = savestring (tok, strlen (tok)); | |
ccab2054 | 9577 | return; |
e7e0cddf | 9578 | } |
018d34a4 VP |
9579 | else |
9580 | error (_("Junk at end of arguments.")); | |
9581 | } | |
9582 | } | |
9583 | ||
0fb4aa4b PA |
9584 | /* Decode a static tracepoint marker spec. */ |
9585 | ||
9586 | static struct symtabs_and_lines | |
f00aae0f | 9587 | decode_static_tracepoint_spec (const char **arg_p) |
0fb4aa4b PA |
9588 | { |
9589 | VEC(static_tracepoint_marker_p) *markers = NULL; | |
9590 | struct symtabs_and_lines sals; | |
0fb4aa4b | 9591 | struct cleanup *old_chain; |
f00aae0f KS |
9592 | const char *p = &(*arg_p)[3]; |
9593 | const char *endp; | |
0fb4aa4b PA |
9594 | char *marker_str; |
9595 | int i; | |
9596 | ||
f00aae0f | 9597 | p = skip_spaces_const (p); |
0fb4aa4b | 9598 | |
f00aae0f | 9599 | endp = skip_to_space_const (p); |
0fb4aa4b PA |
9600 | |
9601 | marker_str = savestring (p, endp - p); | |
9602 | old_chain = make_cleanup (xfree, marker_str); | |
9603 | ||
9604 | markers = target_static_tracepoint_markers_by_strid (marker_str); | |
9605 | if (VEC_empty(static_tracepoint_marker_p, markers)) | |
9606 | error (_("No known static tracepoint marker named %s"), marker_str); | |
9607 | ||
9608 | sals.nelts = VEC_length(static_tracepoint_marker_p, markers); | |
8d749320 | 9609 | sals.sals = XNEWVEC (struct symtab_and_line, sals.nelts); |
0fb4aa4b PA |
9610 | |
9611 | for (i = 0; i < sals.nelts; i++) | |
9612 | { | |
9613 | struct static_tracepoint_marker *marker; | |
9614 | ||
9615 | marker = VEC_index (static_tracepoint_marker_p, markers, i); | |
9616 | ||
9617 | init_sal (&sals.sals[i]); | |
9618 | ||
9619 | sals.sals[i] = find_pc_line (marker->address, 0); | |
9620 | sals.sals[i].pc = marker->address; | |
9621 | ||
9622 | release_static_tracepoint_marker (marker); | |
9623 | } | |
9624 | ||
9625 | do_cleanups (old_chain); | |
9626 | ||
9627 | *arg_p = endp; | |
9628 | return sals; | |
9629 | } | |
9630 | ||
f00aae0f | 9631 | /* See breakpoint.h. */ |
0101ce28 | 9632 | |
8cdf0e15 VP |
9633 | int |
9634 | create_breakpoint (struct gdbarch *gdbarch, | |
f00aae0f | 9635 | const struct event_location *location, char *cond_string, |
e7e0cddf | 9636 | int thread, char *extra_string, |
f00aae0f | 9637 | int parse_extra, |
0fb4aa4b | 9638 | int tempflag, enum bptype type_wanted, |
8cdf0e15 VP |
9639 | int ignore_count, |
9640 | enum auto_boolean pending_break_support, | |
c0a91b2b | 9641 | const struct breakpoint_ops *ops, |
44f238bb PA |
9642 | int from_tty, int enabled, int internal, |
9643 | unsigned flags) | |
c3f6f71d | 9644 | { |
7efd8fc2 | 9645 | struct linespec_result canonical; |
c3f6f71d | 9646 | struct cleanup *old_chain; |
80c99de1 | 9647 | struct cleanup *bkpt_chain = NULL; |
0101ce28 | 9648 | int pending = 0; |
4a306c9a | 9649 | int task = 0; |
86b17b60 | 9650 | int prev_bkpt_count = breakpoint_count; |
c3f6f71d | 9651 | |
348d480f PA |
9652 | gdb_assert (ops != NULL); |
9653 | ||
f00aae0f KS |
9654 | /* If extra_string isn't useful, set it to NULL. */ |
9655 | if (extra_string != NULL && *extra_string == '\0') | |
9656 | extra_string = NULL; | |
9657 | ||
7efd8fc2 | 9658 | init_linespec_result (&canonical); |
c3f6f71d | 9659 | |
492d29ea | 9660 | TRY |
b78a6381 | 9661 | { |
f00aae0f | 9662 | ops->create_sals_from_location (location, &canonical, type_wanted); |
b78a6381 | 9663 | } |
492d29ea | 9664 | CATCH (e, RETURN_MASK_ERROR) |
0101ce28 | 9665 | { |
492d29ea PA |
9666 | /* If caller is interested in rc value from parse, set |
9667 | value. */ | |
9668 | if (e.error == NOT_FOUND_ERROR) | |
0101ce28 | 9669 | { |
05ff989b AC |
9670 | /* If pending breakpoint support is turned off, throw |
9671 | error. */ | |
fa8d40ab JJ |
9672 | |
9673 | if (pending_break_support == AUTO_BOOLEAN_FALSE) | |
723a2275 VP |
9674 | throw_exception (e); |
9675 | ||
9676 | exception_print (gdb_stderr, e); | |
fa8d40ab | 9677 | |
05ff989b AC |
9678 | /* If pending breakpoint support is auto query and the user |
9679 | selects no, then simply return the error code. */ | |
059fb39f | 9680 | if (pending_break_support == AUTO_BOOLEAN_AUTO |
bfccc43c YQ |
9681 | && !nquery (_("Make %s pending on future shared library load? "), |
9682 | bptype_string (type_wanted))) | |
fd9b8c24 | 9683 | return 0; |
fa8d40ab | 9684 | |
05ff989b AC |
9685 | /* At this point, either the user was queried about setting |
9686 | a pending breakpoint and selected yes, or pending | |
9687 | breakpoint behavior is on and thus a pending breakpoint | |
9688 | is defaulted on behalf of the user. */ | |
f00aae0f | 9689 | pending = 1; |
0101ce28 | 9690 | } |
492d29ea PA |
9691 | else |
9692 | throw_exception (e); | |
0101ce28 | 9693 | } |
492d29ea PA |
9694 | END_CATCH |
9695 | ||
f00aae0f | 9696 | if (!pending && VEC_empty (linespec_sals, canonical.sals)) |
492d29ea | 9697 | return 0; |
c3f6f71d | 9698 | |
4a64f543 | 9699 | /* Create a chain of things that always need to be cleaned up. */ |
f8eba3c6 | 9700 | old_chain = make_cleanup_destroy_linespec_result (&canonical); |
c3f6f71d | 9701 | |
c3f6f71d JM |
9702 | /* ----------------------------- SNIP ----------------------------- |
9703 | Anything added to the cleanup chain beyond this point is assumed | |
9704 | to be part of a breakpoint. If the breakpoint create succeeds | |
80c99de1 PA |
9705 | then the memory is not reclaimed. */ |
9706 | bkpt_chain = make_cleanup (null_cleanup, 0); | |
c3f6f71d | 9707 | |
c3f6f71d JM |
9708 | /* Resolve all line numbers to PC's and verify that the addresses |
9709 | are ok for the target. */ | |
0101ce28 | 9710 | if (!pending) |
f8eba3c6 TT |
9711 | { |
9712 | int ix; | |
9713 | struct linespec_sals *iter; | |
9714 | ||
9715 | for (ix = 0; VEC_iterate (linespec_sals, canonical.sals, ix, iter); ++ix) | |
9716 | breakpoint_sals_to_pc (&iter->sals); | |
9717 | } | |
c3f6f71d | 9718 | |
7a697b8d | 9719 | /* Fast tracepoints may have additional restrictions on location. */ |
bfccc43c | 9720 | if (!pending && type_wanted == bp_fast_tracepoint) |
f8eba3c6 TT |
9721 | { |
9722 | int ix; | |
9723 | struct linespec_sals *iter; | |
9724 | ||
9725 | for (ix = 0; VEC_iterate (linespec_sals, canonical.sals, ix, iter); ++ix) | |
9726 | check_fast_tracepoint_sals (gdbarch, &iter->sals); | |
9727 | } | |
7a697b8d | 9728 | |
c3f6f71d JM |
9729 | /* Verify that condition can be parsed, before setting any |
9730 | breakpoints. Allocate a separate condition expression for each | |
4a64f543 | 9731 | breakpoint. */ |
0101ce28 | 9732 | if (!pending) |
c3f6f71d | 9733 | { |
f00aae0f | 9734 | if (parse_extra) |
72b2ff0e | 9735 | { |
0878d0fa | 9736 | char *rest; |
52d361e1 YQ |
9737 | struct linespec_sals *lsal; |
9738 | ||
9739 | lsal = VEC_index (linespec_sals, canonical.sals, 0); | |
9740 | ||
0878d0fa YQ |
9741 | /* Here we only parse 'arg' to separate condition |
9742 | from thread number, so parsing in context of first | |
9743 | sal is OK. When setting the breakpoint we'll | |
9744 | re-parse it in context of each sal. */ | |
9745 | ||
f00aae0f KS |
9746 | find_condition_and_thread (extra_string, lsal->sals.sals[0].pc, |
9747 | &cond_string, &thread, &task, &rest); | |
0878d0fa YQ |
9748 | if (cond_string) |
9749 | make_cleanup (xfree, cond_string); | |
9750 | if (rest) | |
9751 | make_cleanup (xfree, rest); | |
9752 | if (rest) | |
9753 | extra_string = rest; | |
f00aae0f KS |
9754 | else |
9755 | extra_string = NULL; | |
72b2ff0e | 9756 | } |
2f069f6f | 9757 | else |
72b2ff0e | 9758 | { |
f00aae0f KS |
9759 | if (type_wanted != bp_dprintf |
9760 | && extra_string != NULL && *extra_string != '\0') | |
9761 | error (_("Garbage '%s' at end of location"), extra_string); | |
0878d0fa YQ |
9762 | |
9763 | /* Create a private copy of condition string. */ | |
9764 | if (cond_string) | |
9765 | { | |
9766 | cond_string = xstrdup (cond_string); | |
9767 | make_cleanup (xfree, cond_string); | |
9768 | } | |
9769 | /* Create a private copy of any extra string. */ | |
9770 | if (extra_string) | |
9771 | { | |
9772 | extra_string = xstrdup (extra_string); | |
9773 | make_cleanup (xfree, extra_string); | |
9774 | } | |
72b2ff0e | 9775 | } |
0fb4aa4b | 9776 | |
52d361e1 | 9777 | ops->create_breakpoints_sal (gdbarch, &canonical, |
e7e0cddf | 9778 | cond_string, extra_string, type_wanted, |
d9b3f62e PA |
9779 | tempflag ? disp_del : disp_donttouch, |
9780 | thread, task, ignore_count, ops, | |
44f238bb | 9781 | from_tty, enabled, internal, flags); |
c906108c | 9782 | } |
0101ce28 JJ |
9783 | else |
9784 | { | |
0101ce28 JJ |
9785 | struct breakpoint *b; |
9786 | ||
bfccc43c YQ |
9787 | if (is_tracepoint_type (type_wanted)) |
9788 | { | |
9789 | struct tracepoint *t; | |
9790 | ||
9791 | t = XCNEW (struct tracepoint); | |
9792 | b = &t->base; | |
9793 | } | |
9794 | else | |
9795 | b = XNEW (struct breakpoint); | |
9796 | ||
9797 | init_raw_breakpoint_without_location (b, gdbarch, type_wanted, ops); | |
f00aae0f | 9798 | b->location = copy_event_location (location); |
bfccc43c | 9799 | |
f00aae0f KS |
9800 | if (parse_extra) |
9801 | b->cond_string = NULL; | |
e12c7713 MK |
9802 | else |
9803 | { | |
9804 | /* Create a private copy of condition string. */ | |
9805 | if (cond_string) | |
9806 | { | |
9807 | cond_string = xstrdup (cond_string); | |
9808 | make_cleanup (xfree, cond_string); | |
9809 | } | |
9810 | b->cond_string = cond_string; | |
15630549 | 9811 | b->thread = thread; |
e12c7713 | 9812 | } |
f00aae0f KS |
9813 | |
9814 | /* Create a private copy of any extra string. */ | |
9815 | if (extra_string != NULL) | |
9816 | { | |
9817 | extra_string = xstrdup (extra_string); | |
9818 | make_cleanup (xfree, extra_string); | |
9819 | } | |
9820 | b->extra_string = extra_string; | |
0101ce28 | 9821 | b->ignore_count = ignore_count; |
0101ce28 | 9822 | b->disposition = tempflag ? disp_del : disp_donttouch; |
0d381245 | 9823 | b->condition_not_parsed = 1; |
41447f92 | 9824 | b->enable_state = enabled ? bp_enabled : bp_disabled; |
cc72b2a2 KP |
9825 | if ((type_wanted != bp_breakpoint |
9826 | && type_wanted != bp_hardware_breakpoint) || thread != -1) | |
f8eba3c6 | 9827 | b->pspace = current_program_space; |
8bea4e01 | 9828 | |
bfccc43c | 9829 | install_breakpoint (internal, b, 0); |
0101ce28 JJ |
9830 | } |
9831 | ||
f8eba3c6 | 9832 | if (VEC_length (linespec_sals, canonical.sals) > 1) |
95a42b64 | 9833 | { |
3e43a32a MS |
9834 | warning (_("Multiple breakpoints were set.\nUse the " |
9835 | "\"delete\" command to delete unwanted breakpoints.")); | |
86b17b60 | 9836 | prev_breakpoint_count = prev_bkpt_count; |
95a42b64 TT |
9837 | } |
9838 | ||
80c99de1 PA |
9839 | /* That's it. Discard the cleanups for data inserted into the |
9840 | breakpoint. */ | |
9841 | discard_cleanups (bkpt_chain); | |
9842 | /* But cleanup everything else. */ | |
c3f6f71d | 9843 | do_cleanups (old_chain); |
217dc9e2 | 9844 | |
80c99de1 | 9845 | /* error call may happen here - have BKPT_CHAIN already discarded. */ |
44702360 | 9846 | update_global_location_list (UGLL_MAY_INSERT); |
fd9b8c24 PA |
9847 | |
9848 | return 1; | |
c3f6f71d | 9849 | } |
c906108c | 9850 | |
348d480f | 9851 | /* Set a breakpoint. |
72b2ff0e VP |
9852 | ARG is a string describing breakpoint address, |
9853 | condition, and thread. | |
9854 | FLAG specifies if a breakpoint is hardware on, | |
9855 | and if breakpoint is temporary, using BP_HARDWARE_FLAG | |
9856 | and BP_TEMPFLAG. */ | |
348d480f | 9857 | |
98deb0da | 9858 | static void |
72b2ff0e | 9859 | break_command_1 (char *arg, int flag, int from_tty) |
c3f6f71d | 9860 | { |
72b2ff0e | 9861 | int tempflag = flag & BP_TEMPFLAG; |
0fb4aa4b PA |
9862 | enum bptype type_wanted = (flag & BP_HARDWAREFLAG |
9863 | ? bp_hardware_breakpoint | |
9864 | : bp_breakpoint); | |
55aa24fb | 9865 | struct breakpoint_ops *ops; |
f00aae0f KS |
9866 | struct event_location *location; |
9867 | struct cleanup *cleanup; | |
9868 | ||
9869 | location = string_to_event_location (&arg, current_language); | |
9870 | cleanup = make_cleanup_delete_event_location (location); | |
55aa24fb SDJ |
9871 | |
9872 | /* Matching breakpoints on probes. */ | |
5b56227b KS |
9873 | if (location != NULL |
9874 | && event_location_type (location) == PROBE_LOCATION) | |
55aa24fb SDJ |
9875 | ops = &bkpt_probe_breakpoint_ops; |
9876 | else | |
9877 | ops = &bkpt_breakpoint_ops; | |
c3f6f71d | 9878 | |
8cdf0e15 | 9879 | create_breakpoint (get_current_arch (), |
f00aae0f KS |
9880 | location, |
9881 | NULL, 0, arg, 1 /* parse arg */, | |
0fb4aa4b | 9882 | tempflag, type_wanted, |
8cdf0e15 VP |
9883 | 0 /* Ignore count */, |
9884 | pending_break_support, | |
55aa24fb | 9885 | ops, |
8cdf0e15 | 9886 | from_tty, |
84f4c1fe | 9887 | 1 /* enabled */, |
44f238bb PA |
9888 | 0 /* internal */, |
9889 | 0); | |
f00aae0f | 9890 | do_cleanups (cleanup); |
c906108c SS |
9891 | } |
9892 | ||
c906108c SS |
9893 | /* Helper function for break_command_1 and disassemble_command. */ |
9894 | ||
9895 | void | |
fba45db2 | 9896 | resolve_sal_pc (struct symtab_and_line *sal) |
c906108c SS |
9897 | { |
9898 | CORE_ADDR pc; | |
9899 | ||
9900 | if (sal->pc == 0 && sal->symtab != NULL) | |
9901 | { | |
9902 | if (!find_line_pc (sal->symtab, sal->line, &pc)) | |
8a3fe4f8 | 9903 | error (_("No line %d in file \"%s\"."), |
05cba821 | 9904 | sal->line, symtab_to_filename_for_display (sal->symtab)); |
c906108c | 9905 | sal->pc = pc; |
6a048695 | 9906 | |
4a64f543 MS |
9907 | /* If this SAL corresponds to a breakpoint inserted using a line |
9908 | number, then skip the function prologue if necessary. */ | |
6a048695 | 9909 | if (sal->explicit_line) |
059acae7 | 9910 | skip_prologue_sal (sal); |
c906108c SS |
9911 | } |
9912 | ||
9913 | if (sal->section == 0 && sal->symtab != NULL) | |
9914 | { | |
346d1dfe | 9915 | const struct blockvector *bv; |
3977b71f | 9916 | const struct block *b; |
c5aa993b | 9917 | struct symbol *sym; |
c906108c | 9918 | |
43f3e411 DE |
9919 | bv = blockvector_for_pc_sect (sal->pc, 0, &b, |
9920 | SYMTAB_COMPUNIT (sal->symtab)); | |
c906108c SS |
9921 | if (bv != NULL) |
9922 | { | |
7f0df278 | 9923 | sym = block_linkage_function (b); |
c906108c SS |
9924 | if (sym != NULL) |
9925 | { | |
eb822aa6 DE |
9926 | fixup_symbol_section (sym, SYMTAB_OBJFILE (sal->symtab)); |
9927 | sal->section = SYMBOL_OBJ_SECTION (SYMTAB_OBJFILE (sal->symtab), | |
9928 | sym); | |
c906108c SS |
9929 | } |
9930 | else | |
9931 | { | |
4a64f543 MS |
9932 | /* It really is worthwhile to have the section, so we'll |
9933 | just have to look harder. This case can be executed | |
9934 | if we have line numbers but no functions (as can | |
9935 | happen in assembly source). */ | |
c906108c | 9936 | |
7cbd4a93 | 9937 | struct bound_minimal_symbol msym; |
6c95b8df PA |
9938 | struct cleanup *old_chain = save_current_space_and_thread (); |
9939 | ||
9940 | switch_to_program_space_and_thread (sal->pspace); | |
c906108c SS |
9941 | |
9942 | msym = lookup_minimal_symbol_by_pc (sal->pc); | |
7cbd4a93 | 9943 | if (msym.minsym) |
efd66ac6 | 9944 | sal->section = MSYMBOL_OBJ_SECTION (msym.objfile, msym.minsym); |
6c95b8df PA |
9945 | |
9946 | do_cleanups (old_chain); | |
c906108c SS |
9947 | } |
9948 | } | |
9949 | } | |
9950 | } | |
9951 | ||
9952 | void | |
fba45db2 | 9953 | break_command (char *arg, int from_tty) |
c906108c | 9954 | { |
db107f19 | 9955 | break_command_1 (arg, 0, from_tty); |
c906108c SS |
9956 | } |
9957 | ||
c906108c | 9958 | void |
fba45db2 | 9959 | tbreak_command (char *arg, int from_tty) |
c906108c | 9960 | { |
db107f19 | 9961 | break_command_1 (arg, BP_TEMPFLAG, from_tty); |
c906108c SS |
9962 | } |
9963 | ||
c906108c | 9964 | static void |
fba45db2 | 9965 | hbreak_command (char *arg, int from_tty) |
c906108c | 9966 | { |
db107f19 | 9967 | break_command_1 (arg, BP_HARDWAREFLAG, from_tty); |
c906108c SS |
9968 | } |
9969 | ||
9970 | static void | |
fba45db2 | 9971 | thbreak_command (char *arg, int from_tty) |
c906108c | 9972 | { |
db107f19 | 9973 | break_command_1 (arg, (BP_TEMPFLAG | BP_HARDWAREFLAG), from_tty); |
c906108c SS |
9974 | } |
9975 | ||
9976 | static void | |
fba45db2 | 9977 | stop_command (char *arg, int from_tty) |
c906108c | 9978 | { |
a3f17187 | 9979 | printf_filtered (_("Specify the type of breakpoint to set.\n\ |
c906108c | 9980 | Usage: stop in <function | address>\n\ |
a3f17187 | 9981 | stop at <line>\n")); |
c906108c SS |
9982 | } |
9983 | ||
9984 | static void | |
fba45db2 | 9985 | stopin_command (char *arg, int from_tty) |
c906108c SS |
9986 | { |
9987 | int badInput = 0; | |
9988 | ||
c5aa993b | 9989 | if (arg == (char *) NULL) |
c906108c SS |
9990 | badInput = 1; |
9991 | else if (*arg != '*') | |
9992 | { | |
9993 | char *argptr = arg; | |
9994 | int hasColon = 0; | |
9995 | ||
4a64f543 | 9996 | /* Look for a ':'. If this is a line number specification, then |
53a5351d | 9997 | say it is bad, otherwise, it should be an address or |
4a64f543 | 9998 | function/method name. */ |
c906108c | 9999 | while (*argptr && !hasColon) |
c5aa993b JM |
10000 | { |
10001 | hasColon = (*argptr == ':'); | |
10002 | argptr++; | |
10003 | } | |
c906108c SS |
10004 | |
10005 | if (hasColon) | |
c5aa993b | 10006 | badInput = (*argptr != ':'); /* Not a class::method */ |
c906108c | 10007 | else |
c5aa993b | 10008 | badInput = isdigit (*arg); /* a simple line number */ |
c906108c SS |
10009 | } |
10010 | ||
10011 | if (badInput) | |
a3f17187 | 10012 | printf_filtered (_("Usage: stop in <function | address>\n")); |
c906108c | 10013 | else |
db107f19 | 10014 | break_command_1 (arg, 0, from_tty); |
c906108c SS |
10015 | } |
10016 | ||
10017 | static void | |
fba45db2 | 10018 | stopat_command (char *arg, int from_tty) |
c906108c SS |
10019 | { |
10020 | int badInput = 0; | |
10021 | ||
c5aa993b | 10022 | if (arg == (char *) NULL || *arg == '*') /* no line number */ |
c906108c SS |
10023 | badInput = 1; |
10024 | else | |
10025 | { | |
10026 | char *argptr = arg; | |
10027 | int hasColon = 0; | |
10028 | ||
4a64f543 MS |
10029 | /* Look for a ':'. If there is a '::' then get out, otherwise |
10030 | it is probably a line number. */ | |
c906108c | 10031 | while (*argptr && !hasColon) |
c5aa993b JM |
10032 | { |
10033 | hasColon = (*argptr == ':'); | |
10034 | argptr++; | |
10035 | } | |
c906108c SS |
10036 | |
10037 | if (hasColon) | |
c5aa993b | 10038 | badInput = (*argptr == ':'); /* we have class::method */ |
c906108c | 10039 | else |
c5aa993b | 10040 | badInput = !isdigit (*arg); /* not a line number */ |
c906108c SS |
10041 | } |
10042 | ||
10043 | if (badInput) | |
a3f17187 | 10044 | printf_filtered (_("Usage: stop at <line>\n")); |
c906108c | 10045 | else |
db107f19 | 10046 | break_command_1 (arg, 0, from_tty); |
c906108c SS |
10047 | } |
10048 | ||
e7e0cddf SS |
10049 | /* The dynamic printf command is mostly like a regular breakpoint, but |
10050 | with a prewired command list consisting of a single output command, | |
10051 | built from extra arguments supplied on the dprintf command | |
10052 | line. */ | |
10053 | ||
da821c7b | 10054 | static void |
e7e0cddf SS |
10055 | dprintf_command (char *arg, int from_tty) |
10056 | { | |
f00aae0f KS |
10057 | struct event_location *location; |
10058 | struct cleanup *cleanup; | |
10059 | ||
10060 | location = string_to_event_location (&arg, current_language); | |
10061 | cleanup = make_cleanup_delete_event_location (location); | |
10062 | ||
10063 | /* If non-NULL, ARG should have been advanced past the location; | |
10064 | the next character must be ','. */ | |
10065 | if (arg != NULL) | |
10066 | { | |
10067 | if (arg[0] != ',' || arg[1] == '\0') | |
10068 | error (_("Format string required")); | |
10069 | else | |
10070 | { | |
10071 | /* Skip the comma. */ | |
10072 | ++arg; | |
10073 | } | |
10074 | } | |
10075 | ||
e7e0cddf | 10076 | create_breakpoint (get_current_arch (), |
f00aae0f KS |
10077 | location, |
10078 | NULL, 0, arg, 1 /* parse arg */, | |
e7e0cddf SS |
10079 | 0, bp_dprintf, |
10080 | 0 /* Ignore count */, | |
10081 | pending_break_support, | |
10082 | &dprintf_breakpoint_ops, | |
10083 | from_tty, | |
10084 | 1 /* enabled */, | |
10085 | 0 /* internal */, | |
10086 | 0); | |
f00aae0f | 10087 | do_cleanups (cleanup); |
e7e0cddf SS |
10088 | } |
10089 | ||
d3ce09f5 SS |
10090 | static void |
10091 | agent_printf_command (char *arg, int from_tty) | |
10092 | { | |
10093 | error (_("May only run agent-printf on the target")); | |
10094 | } | |
10095 | ||
f1310107 TJB |
10096 | /* Implement the "breakpoint_hit" breakpoint_ops method for |
10097 | ranged breakpoints. */ | |
10098 | ||
10099 | static int | |
10100 | breakpoint_hit_ranged_breakpoint (const struct bp_location *bl, | |
10101 | struct address_space *aspace, | |
09ac7c10 TT |
10102 | CORE_ADDR bp_addr, |
10103 | const struct target_waitstatus *ws) | |
f1310107 | 10104 | { |
09ac7c10 | 10105 | if (ws->kind != TARGET_WAITKIND_STOPPED |
a493e3e2 | 10106 | || ws->value.sig != GDB_SIGNAL_TRAP) |
09ac7c10 TT |
10107 | return 0; |
10108 | ||
f1310107 TJB |
10109 | return breakpoint_address_match_range (bl->pspace->aspace, bl->address, |
10110 | bl->length, aspace, bp_addr); | |
10111 | } | |
10112 | ||
10113 | /* Implement the "resources_needed" breakpoint_ops method for | |
10114 | ranged breakpoints. */ | |
10115 | ||
10116 | static int | |
10117 | resources_needed_ranged_breakpoint (const struct bp_location *bl) | |
10118 | { | |
10119 | return target_ranged_break_num_registers (); | |
10120 | } | |
10121 | ||
10122 | /* Implement the "print_it" breakpoint_ops method for | |
10123 | ranged breakpoints. */ | |
10124 | ||
10125 | static enum print_stop_action | |
348d480f | 10126 | print_it_ranged_breakpoint (bpstat bs) |
f1310107 | 10127 | { |
348d480f | 10128 | struct breakpoint *b = bs->breakpoint_at; |
f1310107 | 10129 | struct bp_location *bl = b->loc; |
79a45e25 | 10130 | struct ui_out *uiout = current_uiout; |
f1310107 TJB |
10131 | |
10132 | gdb_assert (b->type == bp_hardware_breakpoint); | |
10133 | ||
10134 | /* Ranged breakpoints have only one location. */ | |
10135 | gdb_assert (bl && bl->next == NULL); | |
10136 | ||
10137 | annotate_breakpoint (b->number); | |
10138 | if (b->disposition == disp_del) | |
10139 | ui_out_text (uiout, "\nTemporary ranged breakpoint "); | |
10140 | else | |
10141 | ui_out_text (uiout, "\nRanged breakpoint "); | |
10142 | if (ui_out_is_mi_like_p (uiout)) | |
10143 | { | |
10144 | ui_out_field_string (uiout, "reason", | |
10145 | async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT)); | |
10146 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
10147 | } | |
10148 | ui_out_field_int (uiout, "bkptno", b->number); | |
10149 | ui_out_text (uiout, ", "); | |
10150 | ||
10151 | return PRINT_SRC_AND_LOC; | |
10152 | } | |
10153 | ||
10154 | /* Implement the "print_one" breakpoint_ops method for | |
10155 | ranged breakpoints. */ | |
10156 | ||
10157 | static void | |
10158 | print_one_ranged_breakpoint (struct breakpoint *b, | |
10159 | struct bp_location **last_loc) | |
10160 | { | |
10161 | struct bp_location *bl = b->loc; | |
10162 | struct value_print_options opts; | |
79a45e25 | 10163 | struct ui_out *uiout = current_uiout; |
f1310107 TJB |
10164 | |
10165 | /* Ranged breakpoints have only one location. */ | |
10166 | gdb_assert (bl && bl->next == NULL); | |
10167 | ||
10168 | get_user_print_options (&opts); | |
10169 | ||
10170 | if (opts.addressprint) | |
10171 | /* We don't print the address range here, it will be printed later | |
10172 | by print_one_detail_ranged_breakpoint. */ | |
10173 | ui_out_field_skip (uiout, "addr"); | |
10174 | annotate_field (5); | |
10175 | print_breakpoint_location (b, bl); | |
10176 | *last_loc = bl; | |
10177 | } | |
10178 | ||
10179 | /* Implement the "print_one_detail" breakpoint_ops method for | |
10180 | ranged breakpoints. */ | |
10181 | ||
10182 | static void | |
10183 | print_one_detail_ranged_breakpoint (const struct breakpoint *b, | |
10184 | struct ui_out *uiout) | |
10185 | { | |
10186 | CORE_ADDR address_start, address_end; | |
10187 | struct bp_location *bl = b->loc; | |
f99d8bf4 PA |
10188 | struct ui_file *stb = mem_fileopen (); |
10189 | struct cleanup *cleanup = make_cleanup_ui_file_delete (stb); | |
f1310107 TJB |
10190 | |
10191 | gdb_assert (bl); | |
10192 | ||
10193 | address_start = bl->address; | |
10194 | address_end = address_start + bl->length - 1; | |
10195 | ||
10196 | ui_out_text (uiout, "\taddress range: "); | |
f99d8bf4 | 10197 | fprintf_unfiltered (stb, "[%s, %s]", |
f1310107 TJB |
10198 | print_core_address (bl->gdbarch, address_start), |
10199 | print_core_address (bl->gdbarch, address_end)); | |
10200 | ui_out_field_stream (uiout, "addr", stb); | |
10201 | ui_out_text (uiout, "\n"); | |
10202 | ||
10203 | do_cleanups (cleanup); | |
10204 | } | |
10205 | ||
10206 | /* Implement the "print_mention" breakpoint_ops method for | |
10207 | ranged breakpoints. */ | |
10208 | ||
10209 | static void | |
10210 | print_mention_ranged_breakpoint (struct breakpoint *b) | |
10211 | { | |
10212 | struct bp_location *bl = b->loc; | |
79a45e25 | 10213 | struct ui_out *uiout = current_uiout; |
f1310107 TJB |
10214 | |
10215 | gdb_assert (bl); | |
10216 | gdb_assert (b->type == bp_hardware_breakpoint); | |
10217 | ||
10218 | if (ui_out_is_mi_like_p (uiout)) | |
10219 | return; | |
10220 | ||
10221 | printf_filtered (_("Hardware assisted ranged breakpoint %d from %s to %s."), | |
10222 | b->number, paddress (bl->gdbarch, bl->address), | |
10223 | paddress (bl->gdbarch, bl->address + bl->length - 1)); | |
10224 | } | |
10225 | ||
10226 | /* Implement the "print_recreate" breakpoint_ops method for | |
10227 | ranged breakpoints. */ | |
10228 | ||
10229 | static void | |
10230 | print_recreate_ranged_breakpoint (struct breakpoint *b, struct ui_file *fp) | |
10231 | { | |
f00aae0f KS |
10232 | fprintf_unfiltered (fp, "break-range %s, %s", |
10233 | event_location_to_string (b->location), | |
10234 | event_location_to_string (b->location_range_end)); | |
d9b3f62e | 10235 | print_recreate_thread (b, fp); |
f1310107 TJB |
10236 | } |
10237 | ||
10238 | /* The breakpoint_ops structure to be used in ranged breakpoints. */ | |
10239 | ||
2060206e | 10240 | static struct breakpoint_ops ranged_breakpoint_ops; |
f1310107 TJB |
10241 | |
10242 | /* Find the address where the end of the breakpoint range should be | |
10243 | placed, given the SAL of the end of the range. This is so that if | |
10244 | the user provides a line number, the end of the range is set to the | |
10245 | last instruction of the given line. */ | |
10246 | ||
10247 | static CORE_ADDR | |
10248 | find_breakpoint_range_end (struct symtab_and_line sal) | |
10249 | { | |
10250 | CORE_ADDR end; | |
10251 | ||
10252 | /* If the user provided a PC value, use it. Otherwise, | |
10253 | find the address of the end of the given location. */ | |
10254 | if (sal.explicit_pc) | |
10255 | end = sal.pc; | |
10256 | else | |
10257 | { | |
10258 | int ret; | |
10259 | CORE_ADDR start; | |
10260 | ||
10261 | ret = find_line_pc_range (sal, &start, &end); | |
10262 | if (!ret) | |
10263 | error (_("Could not find location of the end of the range.")); | |
10264 | ||
10265 | /* find_line_pc_range returns the start of the next line. */ | |
10266 | end--; | |
10267 | } | |
10268 | ||
10269 | return end; | |
10270 | } | |
10271 | ||
10272 | /* Implement the "break-range" CLI command. */ | |
10273 | ||
10274 | static void | |
10275 | break_range_command (char *arg, int from_tty) | |
10276 | { | |
10277 | char *arg_start, *addr_string_start, *addr_string_end; | |
10278 | struct linespec_result canonical_start, canonical_end; | |
10279 | int bp_count, can_use_bp, length; | |
10280 | CORE_ADDR end; | |
10281 | struct breakpoint *b; | |
10282 | struct symtab_and_line sal_start, sal_end; | |
f1310107 | 10283 | struct cleanup *cleanup_bkpt; |
f8eba3c6 | 10284 | struct linespec_sals *lsal_start, *lsal_end; |
f00aae0f | 10285 | struct event_location *start_location, *end_location; |
f1310107 TJB |
10286 | |
10287 | /* We don't support software ranged breakpoints. */ | |
10288 | if (target_ranged_break_num_registers () < 0) | |
10289 | error (_("This target does not support hardware ranged breakpoints.")); | |
10290 | ||
10291 | bp_count = hw_breakpoint_used_count (); | |
10292 | bp_count += target_ranged_break_num_registers (); | |
10293 | can_use_bp = target_can_use_hardware_watchpoint (bp_hardware_breakpoint, | |
10294 | bp_count, 0); | |
10295 | if (can_use_bp < 0) | |
10296 | error (_("Hardware breakpoints used exceeds limit.")); | |
10297 | ||
f8eba3c6 | 10298 | arg = skip_spaces (arg); |
f1310107 TJB |
10299 | if (arg == NULL || arg[0] == '\0') |
10300 | error(_("No address range specified.")); | |
10301 | ||
f1310107 TJB |
10302 | init_linespec_result (&canonical_start); |
10303 | ||
f8eba3c6 | 10304 | arg_start = arg; |
f00aae0f KS |
10305 | start_location = string_to_event_location (&arg, current_language); |
10306 | cleanup_bkpt = make_cleanup_delete_event_location (start_location); | |
10307 | parse_breakpoint_sals (start_location, &canonical_start); | |
10308 | make_cleanup_destroy_linespec_result (&canonical_start); | |
f1310107 TJB |
10309 | |
10310 | if (arg[0] != ',') | |
10311 | error (_("Too few arguments.")); | |
f8eba3c6 | 10312 | else if (VEC_empty (linespec_sals, canonical_start.sals)) |
f1310107 | 10313 | error (_("Could not find location of the beginning of the range.")); |
f8eba3c6 TT |
10314 | |
10315 | lsal_start = VEC_index (linespec_sals, canonical_start.sals, 0); | |
10316 | ||
10317 | if (VEC_length (linespec_sals, canonical_start.sals) > 1 | |
10318 | || lsal_start->sals.nelts != 1) | |
f1310107 TJB |
10319 | error (_("Cannot create a ranged breakpoint with multiple locations.")); |
10320 | ||
f8eba3c6 TT |
10321 | sal_start = lsal_start->sals.sals[0]; |
10322 | addr_string_start = savestring (arg_start, arg - arg_start); | |
10323 | make_cleanup (xfree, addr_string_start); | |
f1310107 TJB |
10324 | |
10325 | arg++; /* Skip the comma. */ | |
f8eba3c6 | 10326 | arg = skip_spaces (arg); |
f1310107 TJB |
10327 | |
10328 | /* Parse the end location. */ | |
10329 | ||
f1310107 TJB |
10330 | init_linespec_result (&canonical_end); |
10331 | arg_start = arg; | |
10332 | ||
f8eba3c6 | 10333 | /* We call decode_line_full directly here instead of using |
f1310107 TJB |
10334 | parse_breakpoint_sals because we need to specify the start location's |
10335 | symtab and line as the default symtab and line for the end of the | |
10336 | range. This makes it possible to have ranges like "foo.c:27, +14", | |
10337 | where +14 means 14 lines from the start location. */ | |
f00aae0f KS |
10338 | end_location = string_to_event_location (&arg, current_language); |
10339 | make_cleanup_delete_event_location (end_location); | |
10340 | decode_line_full (end_location, DECODE_LINE_FUNFIRSTLINE, | |
f8eba3c6 TT |
10341 | sal_start.symtab, sal_start.line, |
10342 | &canonical_end, NULL, NULL); | |
10343 | ||
10344 | make_cleanup_destroy_linespec_result (&canonical_end); | |
f1310107 | 10345 | |
f8eba3c6 | 10346 | if (VEC_empty (linespec_sals, canonical_end.sals)) |
f1310107 | 10347 | error (_("Could not find location of the end of the range.")); |
f8eba3c6 TT |
10348 | |
10349 | lsal_end = VEC_index (linespec_sals, canonical_end.sals, 0); | |
10350 | if (VEC_length (linespec_sals, canonical_end.sals) > 1 | |
10351 | || lsal_end->sals.nelts != 1) | |
f1310107 TJB |
10352 | error (_("Cannot create a ranged breakpoint with multiple locations.")); |
10353 | ||
f8eba3c6 | 10354 | sal_end = lsal_end->sals.sals[0]; |
f1310107 TJB |
10355 | |
10356 | end = find_breakpoint_range_end (sal_end); | |
10357 | if (sal_start.pc > end) | |
177b42fe | 10358 | error (_("Invalid address range, end precedes start.")); |
f1310107 TJB |
10359 | |
10360 | length = end - sal_start.pc + 1; | |
10361 | if (length < 0) | |
10362 | /* Length overflowed. */ | |
10363 | error (_("Address range too large.")); | |
10364 | else if (length == 1) | |
10365 | { | |
10366 | /* This range is simple enough to be handled by | |
10367 | the `hbreak' command. */ | |
10368 | hbreak_command (addr_string_start, 1); | |
10369 | ||
10370 | do_cleanups (cleanup_bkpt); | |
10371 | ||
10372 | return; | |
10373 | } | |
10374 | ||
10375 | /* Now set up the breakpoint. */ | |
10376 | b = set_raw_breakpoint (get_current_arch (), sal_start, | |
348d480f | 10377 | bp_hardware_breakpoint, &ranged_breakpoint_ops); |
f1310107 TJB |
10378 | set_breakpoint_count (breakpoint_count + 1); |
10379 | b->number = breakpoint_count; | |
10380 | b->disposition = disp_donttouch; | |
f00aae0f KS |
10381 | b->location = copy_event_location (start_location); |
10382 | b->location_range_end = copy_event_location (end_location); | |
f1310107 TJB |
10383 | b->loc->length = length; |
10384 | ||
f8eba3c6 | 10385 | do_cleanups (cleanup_bkpt); |
f1310107 TJB |
10386 | |
10387 | mention (b); | |
8d3788bd | 10388 | observer_notify_breakpoint_created (b); |
44702360 | 10389 | update_global_location_list (UGLL_MAY_INSERT); |
f1310107 TJB |
10390 | } |
10391 | ||
4a64f543 MS |
10392 | /* Return non-zero if EXP is verified as constant. Returned zero |
10393 | means EXP is variable. Also the constant detection may fail for | |
10394 | some constant expressions and in such case still falsely return | |
10395 | zero. */ | |
2e6e3d9c | 10396 | |
65d79d4b SDJ |
10397 | static int |
10398 | watchpoint_exp_is_const (const struct expression *exp) | |
10399 | { | |
10400 | int i = exp->nelts; | |
10401 | ||
10402 | while (i > 0) | |
10403 | { | |
10404 | int oplenp, argsp; | |
10405 | ||
10406 | /* We are only interested in the descriptor of each element. */ | |
10407 | operator_length (exp, i, &oplenp, &argsp); | |
10408 | i -= oplenp; | |
10409 | ||
10410 | switch (exp->elts[i].opcode) | |
10411 | { | |
10412 | case BINOP_ADD: | |
10413 | case BINOP_SUB: | |
10414 | case BINOP_MUL: | |
10415 | case BINOP_DIV: | |
10416 | case BINOP_REM: | |
10417 | case BINOP_MOD: | |
10418 | case BINOP_LSH: | |
10419 | case BINOP_RSH: | |
10420 | case BINOP_LOGICAL_AND: | |
10421 | case BINOP_LOGICAL_OR: | |
10422 | case BINOP_BITWISE_AND: | |
10423 | case BINOP_BITWISE_IOR: | |
10424 | case BINOP_BITWISE_XOR: | |
10425 | case BINOP_EQUAL: | |
10426 | case BINOP_NOTEQUAL: | |
10427 | case BINOP_LESS: | |
10428 | case BINOP_GTR: | |
10429 | case BINOP_LEQ: | |
10430 | case BINOP_GEQ: | |
10431 | case BINOP_REPEAT: | |
10432 | case BINOP_COMMA: | |
10433 | case BINOP_EXP: | |
10434 | case BINOP_MIN: | |
10435 | case BINOP_MAX: | |
10436 | case BINOP_INTDIV: | |
10437 | case BINOP_CONCAT: | |
65d79d4b SDJ |
10438 | case TERNOP_COND: |
10439 | case TERNOP_SLICE: | |
65d79d4b SDJ |
10440 | |
10441 | case OP_LONG: | |
10442 | case OP_DOUBLE: | |
10443 | case OP_DECFLOAT: | |
10444 | case OP_LAST: | |
10445 | case OP_COMPLEX: | |
10446 | case OP_STRING: | |
65d79d4b SDJ |
10447 | case OP_ARRAY: |
10448 | case OP_TYPE: | |
608b4967 TT |
10449 | case OP_TYPEOF: |
10450 | case OP_DECLTYPE: | |
6e72ca20 | 10451 | case OP_TYPEID: |
65d79d4b SDJ |
10452 | case OP_NAME: |
10453 | case OP_OBJC_NSSTRING: | |
10454 | ||
10455 | case UNOP_NEG: | |
10456 | case UNOP_LOGICAL_NOT: | |
10457 | case UNOP_COMPLEMENT: | |
10458 | case UNOP_ADDR: | |
10459 | case UNOP_HIGH: | |
aeaa2474 | 10460 | case UNOP_CAST: |
9eaf6705 TT |
10461 | |
10462 | case UNOP_CAST_TYPE: | |
10463 | case UNOP_REINTERPRET_CAST: | |
10464 | case UNOP_DYNAMIC_CAST: | |
4a64f543 MS |
10465 | /* Unary, binary and ternary operators: We have to check |
10466 | their operands. If they are constant, then so is the | |
10467 | result of that operation. For instance, if A and B are | |
10468 | determined to be constants, then so is "A + B". | |
10469 | ||
10470 | UNOP_IND is one exception to the rule above, because the | |
10471 | value of *ADDR is not necessarily a constant, even when | |
10472 | ADDR is. */ | |
65d79d4b SDJ |
10473 | break; |
10474 | ||
10475 | case OP_VAR_VALUE: | |
10476 | /* Check whether the associated symbol is a constant. | |
4a64f543 | 10477 | |
65d79d4b | 10478 | We use SYMBOL_CLASS rather than TYPE_CONST because it's |
4a64f543 MS |
10479 | possible that a buggy compiler could mark a variable as |
10480 | constant even when it is not, and TYPE_CONST would return | |
10481 | true in this case, while SYMBOL_CLASS wouldn't. | |
10482 | ||
10483 | We also have to check for function symbols because they | |
10484 | are always constant. */ | |
65d79d4b SDJ |
10485 | { |
10486 | struct symbol *s = exp->elts[i + 2].symbol; | |
10487 | ||
10488 | if (SYMBOL_CLASS (s) != LOC_BLOCK | |
10489 | && SYMBOL_CLASS (s) != LOC_CONST | |
10490 | && SYMBOL_CLASS (s) != LOC_CONST_BYTES) | |
10491 | return 0; | |
10492 | break; | |
10493 | } | |
10494 | ||
10495 | /* The default action is to return 0 because we are using | |
10496 | the optimistic approach here: If we don't know something, | |
10497 | then it is not a constant. */ | |
10498 | default: | |
10499 | return 0; | |
10500 | } | |
10501 | } | |
10502 | ||
10503 | return 1; | |
10504 | } | |
10505 | ||
3a5c3e22 PA |
10506 | /* Implement the "dtor" breakpoint_ops method for watchpoints. */ |
10507 | ||
10508 | static void | |
10509 | dtor_watchpoint (struct breakpoint *self) | |
10510 | { | |
10511 | struct watchpoint *w = (struct watchpoint *) self; | |
10512 | ||
10513 | xfree (w->cond_exp); | |
10514 | xfree (w->exp); | |
10515 | xfree (w->exp_string); | |
10516 | xfree (w->exp_string_reparse); | |
10517 | value_free (w->val); | |
10518 | ||
10519 | base_breakpoint_ops.dtor (self); | |
10520 | } | |
10521 | ||
348d480f PA |
10522 | /* Implement the "re_set" breakpoint_ops method for watchpoints. */ |
10523 | ||
10524 | static void | |
10525 | re_set_watchpoint (struct breakpoint *b) | |
10526 | { | |
3a5c3e22 PA |
10527 | struct watchpoint *w = (struct watchpoint *) b; |
10528 | ||
348d480f PA |
10529 | /* Watchpoint can be either on expression using entirely global |
10530 | variables, or it can be on local variables. | |
10531 | ||
10532 | Watchpoints of the first kind are never auto-deleted, and even | |
10533 | persist across program restarts. Since they can use variables | |
10534 | from shared libraries, we need to reparse expression as libraries | |
10535 | are loaded and unloaded. | |
10536 | ||
10537 | Watchpoints on local variables can also change meaning as result | |
10538 | of solib event. For example, if a watchpoint uses both a local | |
10539 | and a global variables in expression, it's a local watchpoint, | |
10540 | but unloading of a shared library will make the expression | |
10541 | invalid. This is not a very common use case, but we still | |
10542 | re-evaluate expression, to avoid surprises to the user. | |
10543 | ||
10544 | Note that for local watchpoints, we re-evaluate it only if | |
10545 | watchpoints frame id is still valid. If it's not, it means the | |
10546 | watchpoint is out of scope and will be deleted soon. In fact, | |
10547 | I'm not sure we'll ever be called in this case. | |
10548 | ||
10549 | If a local watchpoint's frame id is still valid, then | |
3a5c3e22 | 10550 | w->exp_valid_block is likewise valid, and we can safely use it. |
348d480f | 10551 | |
3a5c3e22 PA |
10552 | Don't do anything about disabled watchpoints, since they will be |
10553 | reevaluated again when enabled. */ | |
10554 | update_watchpoint (w, 1 /* reparse */); | |
348d480f PA |
10555 | } |
10556 | ||
77b06cd7 TJB |
10557 | /* Implement the "insert" breakpoint_ops method for hardware watchpoints. */ |
10558 | ||
10559 | static int | |
10560 | insert_watchpoint (struct bp_location *bl) | |
10561 | { | |
3a5c3e22 PA |
10562 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10563 | int length = w->exact ? 1 : bl->length; | |
e09342b5 TJB |
10564 | |
10565 | return target_insert_watchpoint (bl->address, length, bl->watchpoint_type, | |
3a5c3e22 | 10566 | w->cond_exp); |
77b06cd7 TJB |
10567 | } |
10568 | ||
10569 | /* Implement the "remove" breakpoint_ops method for hardware watchpoints. */ | |
10570 | ||
10571 | static int | |
10572 | remove_watchpoint (struct bp_location *bl) | |
10573 | { | |
3a5c3e22 PA |
10574 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10575 | int length = w->exact ? 1 : bl->length; | |
e09342b5 TJB |
10576 | |
10577 | return target_remove_watchpoint (bl->address, length, bl->watchpoint_type, | |
3a5c3e22 | 10578 | w->cond_exp); |
e09342b5 TJB |
10579 | } |
10580 | ||
e09342b5 | 10581 | static int |
348d480f | 10582 | breakpoint_hit_watchpoint (const struct bp_location *bl, |
09ac7c10 TT |
10583 | struct address_space *aspace, CORE_ADDR bp_addr, |
10584 | const struct target_waitstatus *ws) | |
e09342b5 | 10585 | { |
348d480f | 10586 | struct breakpoint *b = bl->owner; |
3a5c3e22 | 10587 | struct watchpoint *w = (struct watchpoint *) b; |
77b06cd7 | 10588 | |
348d480f PA |
10589 | /* Continuable hardware watchpoints are treated as non-existent if the |
10590 | reason we stopped wasn't a hardware watchpoint (we didn't stop on | |
10591 | some data address). Otherwise gdb won't stop on a break instruction | |
10592 | in the code (not from a breakpoint) when a hardware watchpoint has | |
10593 | been defined. Also skip watchpoints which we know did not trigger | |
10594 | (did not match the data address). */ | |
10595 | if (is_hardware_watchpoint (b) | |
3a5c3e22 | 10596 | && w->watchpoint_triggered == watch_triggered_no) |
348d480f | 10597 | return 0; |
9c06b0b4 | 10598 | |
348d480f | 10599 | return 1; |
9c06b0b4 TJB |
10600 | } |
10601 | ||
348d480f PA |
10602 | static void |
10603 | check_status_watchpoint (bpstat bs) | |
9c06b0b4 | 10604 | { |
348d480f | 10605 | gdb_assert (is_watchpoint (bs->breakpoint_at)); |
9c06b0b4 | 10606 | |
348d480f | 10607 | bpstat_check_watchpoint (bs); |
9c06b0b4 TJB |
10608 | } |
10609 | ||
10610 | /* Implement the "resources_needed" breakpoint_ops method for | |
348d480f | 10611 | hardware watchpoints. */ |
9c06b0b4 TJB |
10612 | |
10613 | static int | |
348d480f | 10614 | resources_needed_watchpoint (const struct bp_location *bl) |
9c06b0b4 | 10615 | { |
3a5c3e22 PA |
10616 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10617 | int length = w->exact? 1 : bl->length; | |
348d480f PA |
10618 | |
10619 | return target_region_ok_for_hw_watchpoint (bl->address, length); | |
9c06b0b4 TJB |
10620 | } |
10621 | ||
10622 | /* Implement the "works_in_software_mode" breakpoint_ops method for | |
348d480f | 10623 | hardware watchpoints. */ |
9c06b0b4 TJB |
10624 | |
10625 | static int | |
348d480f | 10626 | works_in_software_mode_watchpoint (const struct breakpoint *b) |
9c06b0b4 | 10627 | { |
efa80663 PA |
10628 | /* Read and access watchpoints only work with hardware support. */ |
10629 | return b->type == bp_watchpoint || b->type == bp_hardware_watchpoint; | |
9c06b0b4 TJB |
10630 | } |
10631 | ||
9c06b0b4 | 10632 | static enum print_stop_action |
348d480f | 10633 | print_it_watchpoint (bpstat bs) |
9c06b0b4 | 10634 | { |
348d480f PA |
10635 | struct cleanup *old_chain; |
10636 | struct breakpoint *b; | |
f99d8bf4 | 10637 | struct ui_file *stb; |
348d480f | 10638 | enum print_stop_action result; |
3a5c3e22 | 10639 | struct watchpoint *w; |
79a45e25 | 10640 | struct ui_out *uiout = current_uiout; |
348d480f PA |
10641 | |
10642 | gdb_assert (bs->bp_location_at != NULL); | |
10643 | ||
348d480f | 10644 | b = bs->breakpoint_at; |
3a5c3e22 | 10645 | w = (struct watchpoint *) b; |
348d480f | 10646 | |
f99d8bf4 PA |
10647 | stb = mem_fileopen (); |
10648 | old_chain = make_cleanup_ui_file_delete (stb); | |
9c06b0b4 TJB |
10649 | |
10650 | switch (b->type) | |
10651 | { | |
348d480f | 10652 | case bp_watchpoint: |
9c06b0b4 TJB |
10653 | case bp_hardware_watchpoint: |
10654 | annotate_watchpoint (b->number); | |
10655 | if (ui_out_is_mi_like_p (uiout)) | |
10656 | ui_out_field_string | |
10657 | (uiout, "reason", | |
10658 | async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER)); | |
348d480f PA |
10659 | mention (b); |
10660 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10661 | ui_out_text (uiout, "\nOld value = "); | |
f99d8bf4 | 10662 | watchpoint_value_print (bs->old_val, stb); |
348d480f PA |
10663 | ui_out_field_stream (uiout, "old", stb); |
10664 | ui_out_text (uiout, "\nNew value = "); | |
f99d8bf4 | 10665 | watchpoint_value_print (w->val, stb); |
348d480f PA |
10666 | ui_out_field_stream (uiout, "new", stb); |
10667 | ui_out_text (uiout, "\n"); | |
10668 | /* More than one watchpoint may have been triggered. */ | |
10669 | result = PRINT_UNKNOWN; | |
9c06b0b4 TJB |
10670 | break; |
10671 | ||
10672 | case bp_read_watchpoint: | |
10673 | if (ui_out_is_mi_like_p (uiout)) | |
10674 | ui_out_field_string | |
10675 | (uiout, "reason", | |
10676 | async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER)); | |
348d480f PA |
10677 | mention (b); |
10678 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10679 | ui_out_text (uiout, "\nValue = "); | |
f99d8bf4 | 10680 | watchpoint_value_print (w->val, stb); |
348d480f PA |
10681 | ui_out_field_stream (uiout, "value", stb); |
10682 | ui_out_text (uiout, "\n"); | |
10683 | result = PRINT_UNKNOWN; | |
9c06b0b4 TJB |
10684 | break; |
10685 | ||
10686 | case bp_access_watchpoint: | |
348d480f PA |
10687 | if (bs->old_val != NULL) |
10688 | { | |
10689 | annotate_watchpoint (b->number); | |
10690 | if (ui_out_is_mi_like_p (uiout)) | |
10691 | ui_out_field_string | |
10692 | (uiout, "reason", | |
10693 | async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER)); | |
10694 | mention (b); | |
10695 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10696 | ui_out_text (uiout, "\nOld value = "); | |
f99d8bf4 | 10697 | watchpoint_value_print (bs->old_val, stb); |
348d480f PA |
10698 | ui_out_field_stream (uiout, "old", stb); |
10699 | ui_out_text (uiout, "\nNew value = "); | |
10700 | } | |
10701 | else | |
10702 | { | |
10703 | mention (b); | |
10704 | if (ui_out_is_mi_like_p (uiout)) | |
10705 | ui_out_field_string | |
10706 | (uiout, "reason", | |
10707 | async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER)); | |
10708 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10709 | ui_out_text (uiout, "\nValue = "); | |
10710 | } | |
f99d8bf4 | 10711 | watchpoint_value_print (w->val, stb); |
348d480f PA |
10712 | ui_out_field_stream (uiout, "new", stb); |
10713 | ui_out_text (uiout, "\n"); | |
10714 | result = PRINT_UNKNOWN; | |
9c06b0b4 TJB |
10715 | break; |
10716 | default: | |
348d480f | 10717 | result = PRINT_UNKNOWN; |
9c06b0b4 TJB |
10718 | } |
10719 | ||
348d480f PA |
10720 | do_cleanups (old_chain); |
10721 | return result; | |
10722 | } | |
10723 | ||
10724 | /* Implement the "print_mention" breakpoint_ops method for hardware | |
10725 | watchpoints. */ | |
10726 | ||
10727 | static void | |
10728 | print_mention_watchpoint (struct breakpoint *b) | |
10729 | { | |
10730 | struct cleanup *ui_out_chain; | |
3a5c3e22 | 10731 | struct watchpoint *w = (struct watchpoint *) b; |
79a45e25 | 10732 | struct ui_out *uiout = current_uiout; |
348d480f PA |
10733 | |
10734 | switch (b->type) | |
10735 | { | |
10736 | case bp_watchpoint: | |
10737 | ui_out_text (uiout, "Watchpoint "); | |
10738 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt"); | |
10739 | break; | |
10740 | case bp_hardware_watchpoint: | |
10741 | ui_out_text (uiout, "Hardware watchpoint "); | |
10742 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt"); | |
10743 | break; | |
10744 | case bp_read_watchpoint: | |
10745 | ui_out_text (uiout, "Hardware read watchpoint "); | |
10746 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-rwpt"); | |
10747 | break; | |
10748 | case bp_access_watchpoint: | |
10749 | ui_out_text (uiout, "Hardware access (read/write) watchpoint "); | |
10750 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-awpt"); | |
10751 | break; | |
10752 | default: | |
10753 | internal_error (__FILE__, __LINE__, | |
10754 | _("Invalid hardware watchpoint type.")); | |
10755 | } | |
10756 | ||
10757 | ui_out_field_int (uiout, "number", b->number); | |
10758 | ui_out_text (uiout, ": "); | |
3a5c3e22 | 10759 | ui_out_field_string (uiout, "exp", w->exp_string); |
348d480f PA |
10760 | do_cleanups (ui_out_chain); |
10761 | } | |
10762 | ||
10763 | /* Implement the "print_recreate" breakpoint_ops method for | |
10764 | watchpoints. */ | |
10765 | ||
10766 | static void | |
10767 | print_recreate_watchpoint (struct breakpoint *b, struct ui_file *fp) | |
10768 | { | |
3a5c3e22 PA |
10769 | struct watchpoint *w = (struct watchpoint *) b; |
10770 | ||
348d480f PA |
10771 | switch (b->type) |
10772 | { | |
10773 | case bp_watchpoint: | |
10774 | case bp_hardware_watchpoint: | |
10775 | fprintf_unfiltered (fp, "watch"); | |
10776 | break; | |
10777 | case bp_read_watchpoint: | |
10778 | fprintf_unfiltered (fp, "rwatch"); | |
10779 | break; | |
10780 | case bp_access_watchpoint: | |
10781 | fprintf_unfiltered (fp, "awatch"); | |
10782 | break; | |
10783 | default: | |
10784 | internal_error (__FILE__, __LINE__, | |
10785 | _("Invalid watchpoint type.")); | |
10786 | } | |
10787 | ||
3a5c3e22 | 10788 | fprintf_unfiltered (fp, " %s", w->exp_string); |
d9b3f62e | 10789 | print_recreate_thread (b, fp); |
348d480f PA |
10790 | } |
10791 | ||
427cd150 TT |
10792 | /* Implement the "explains_signal" breakpoint_ops method for |
10793 | watchpoints. */ | |
10794 | ||
47591c29 | 10795 | static int |
427cd150 TT |
10796 | explains_signal_watchpoint (struct breakpoint *b, enum gdb_signal sig) |
10797 | { | |
10798 | /* A software watchpoint cannot cause a signal other than | |
10799 | GDB_SIGNAL_TRAP. */ | |
10800 | if (b->type == bp_watchpoint && sig != GDB_SIGNAL_TRAP) | |
47591c29 | 10801 | return 0; |
427cd150 | 10802 | |
47591c29 | 10803 | return 1; |
427cd150 TT |
10804 | } |
10805 | ||
348d480f PA |
10806 | /* The breakpoint_ops structure to be used in hardware watchpoints. */ |
10807 | ||
2060206e | 10808 | static struct breakpoint_ops watchpoint_breakpoint_ops; |
348d480f PA |
10809 | |
10810 | /* Implement the "insert" breakpoint_ops method for | |
10811 | masked hardware watchpoints. */ | |
10812 | ||
10813 | static int | |
10814 | insert_masked_watchpoint (struct bp_location *bl) | |
10815 | { | |
3a5c3e22 PA |
10816 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10817 | ||
10818 | return target_insert_mask_watchpoint (bl->address, w->hw_wp_mask, | |
348d480f PA |
10819 | bl->watchpoint_type); |
10820 | } | |
10821 | ||
10822 | /* Implement the "remove" breakpoint_ops method for | |
10823 | masked hardware watchpoints. */ | |
10824 | ||
10825 | static int | |
10826 | remove_masked_watchpoint (struct bp_location *bl) | |
10827 | { | |
3a5c3e22 PA |
10828 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10829 | ||
10830 | return target_remove_mask_watchpoint (bl->address, w->hw_wp_mask, | |
348d480f PA |
10831 | bl->watchpoint_type); |
10832 | } | |
10833 | ||
10834 | /* Implement the "resources_needed" breakpoint_ops method for | |
10835 | masked hardware watchpoints. */ | |
10836 | ||
10837 | static int | |
10838 | resources_needed_masked_watchpoint (const struct bp_location *bl) | |
10839 | { | |
3a5c3e22 PA |
10840 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10841 | ||
10842 | return target_masked_watch_num_registers (bl->address, w->hw_wp_mask); | |
348d480f PA |
10843 | } |
10844 | ||
10845 | /* Implement the "works_in_software_mode" breakpoint_ops method for | |
10846 | masked hardware watchpoints. */ | |
10847 | ||
10848 | static int | |
10849 | works_in_software_mode_masked_watchpoint (const struct breakpoint *b) | |
10850 | { | |
10851 | return 0; | |
10852 | } | |
10853 | ||
10854 | /* Implement the "print_it" breakpoint_ops method for | |
10855 | masked hardware watchpoints. */ | |
10856 | ||
10857 | static enum print_stop_action | |
10858 | print_it_masked_watchpoint (bpstat bs) | |
10859 | { | |
10860 | struct breakpoint *b = bs->breakpoint_at; | |
79a45e25 | 10861 | struct ui_out *uiout = current_uiout; |
348d480f PA |
10862 | |
10863 | /* Masked watchpoints have only one location. */ | |
10864 | gdb_assert (b->loc && b->loc->next == NULL); | |
10865 | ||
10866 | switch (b->type) | |
10867 | { | |
10868 | case bp_hardware_watchpoint: | |
10869 | annotate_watchpoint (b->number); | |
10870 | if (ui_out_is_mi_like_p (uiout)) | |
10871 | ui_out_field_string | |
10872 | (uiout, "reason", | |
10873 | async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER)); | |
10874 | break; | |
10875 | ||
10876 | case bp_read_watchpoint: | |
10877 | if (ui_out_is_mi_like_p (uiout)) | |
10878 | ui_out_field_string | |
10879 | (uiout, "reason", | |
10880 | async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER)); | |
10881 | break; | |
10882 | ||
10883 | case bp_access_watchpoint: | |
10884 | if (ui_out_is_mi_like_p (uiout)) | |
10885 | ui_out_field_string | |
10886 | (uiout, "reason", | |
10887 | async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER)); | |
10888 | break; | |
10889 | default: | |
10890 | internal_error (__FILE__, __LINE__, | |
10891 | _("Invalid hardware watchpoint type.")); | |
10892 | } | |
10893 | ||
10894 | mention (b); | |
9c06b0b4 TJB |
10895 | ui_out_text (uiout, _("\n\ |
10896 | Check the underlying instruction at PC for the memory\n\ | |
10897 | address and value which triggered this watchpoint.\n")); | |
10898 | ui_out_text (uiout, "\n"); | |
10899 | ||
10900 | /* More than one watchpoint may have been triggered. */ | |
10901 | return PRINT_UNKNOWN; | |
10902 | } | |
10903 | ||
10904 | /* Implement the "print_one_detail" breakpoint_ops method for | |
10905 | masked hardware watchpoints. */ | |
10906 | ||
10907 | static void | |
10908 | print_one_detail_masked_watchpoint (const struct breakpoint *b, | |
10909 | struct ui_out *uiout) | |
10910 | { | |
3a5c3e22 PA |
10911 | struct watchpoint *w = (struct watchpoint *) b; |
10912 | ||
9c06b0b4 TJB |
10913 | /* Masked watchpoints have only one location. */ |
10914 | gdb_assert (b->loc && b->loc->next == NULL); | |
10915 | ||
10916 | ui_out_text (uiout, "\tmask "); | |
3a5c3e22 | 10917 | ui_out_field_core_addr (uiout, "mask", b->loc->gdbarch, w->hw_wp_mask); |
9c06b0b4 TJB |
10918 | ui_out_text (uiout, "\n"); |
10919 | } | |
10920 | ||
10921 | /* Implement the "print_mention" breakpoint_ops method for | |
10922 | masked hardware watchpoints. */ | |
10923 | ||
10924 | static void | |
10925 | print_mention_masked_watchpoint (struct breakpoint *b) | |
10926 | { | |
3a5c3e22 | 10927 | struct watchpoint *w = (struct watchpoint *) b; |
79a45e25 | 10928 | struct ui_out *uiout = current_uiout; |
9c06b0b4 TJB |
10929 | struct cleanup *ui_out_chain; |
10930 | ||
10931 | switch (b->type) | |
10932 | { | |
10933 | case bp_hardware_watchpoint: | |
10934 | ui_out_text (uiout, "Masked hardware watchpoint "); | |
10935 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt"); | |
10936 | break; | |
10937 | case bp_read_watchpoint: | |
10938 | ui_out_text (uiout, "Masked hardware read watchpoint "); | |
10939 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-rwpt"); | |
10940 | break; | |
10941 | case bp_access_watchpoint: | |
10942 | ui_out_text (uiout, "Masked hardware access (read/write) watchpoint "); | |
10943 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-awpt"); | |
10944 | break; | |
10945 | default: | |
10946 | internal_error (__FILE__, __LINE__, | |
10947 | _("Invalid hardware watchpoint type.")); | |
10948 | } | |
10949 | ||
10950 | ui_out_field_int (uiout, "number", b->number); | |
10951 | ui_out_text (uiout, ": "); | |
3a5c3e22 | 10952 | ui_out_field_string (uiout, "exp", w->exp_string); |
9c06b0b4 TJB |
10953 | do_cleanups (ui_out_chain); |
10954 | } | |
10955 | ||
10956 | /* Implement the "print_recreate" breakpoint_ops method for | |
10957 | masked hardware watchpoints. */ | |
10958 | ||
10959 | static void | |
10960 | print_recreate_masked_watchpoint (struct breakpoint *b, struct ui_file *fp) | |
10961 | { | |
3a5c3e22 | 10962 | struct watchpoint *w = (struct watchpoint *) b; |
9c06b0b4 TJB |
10963 | char tmp[40]; |
10964 | ||
10965 | switch (b->type) | |
10966 | { | |
10967 | case bp_hardware_watchpoint: | |
10968 | fprintf_unfiltered (fp, "watch"); | |
10969 | break; | |
10970 | case bp_read_watchpoint: | |
10971 | fprintf_unfiltered (fp, "rwatch"); | |
10972 | break; | |
10973 | case bp_access_watchpoint: | |
10974 | fprintf_unfiltered (fp, "awatch"); | |
10975 | break; | |
10976 | default: | |
10977 | internal_error (__FILE__, __LINE__, | |
10978 | _("Invalid hardware watchpoint type.")); | |
10979 | } | |
10980 | ||
3a5c3e22 PA |
10981 | sprintf_vma (tmp, w->hw_wp_mask); |
10982 | fprintf_unfiltered (fp, " %s mask 0x%s", w->exp_string, tmp); | |
d9b3f62e | 10983 | print_recreate_thread (b, fp); |
9c06b0b4 TJB |
10984 | } |
10985 | ||
10986 | /* The breakpoint_ops structure to be used in masked hardware watchpoints. */ | |
10987 | ||
2060206e | 10988 | static struct breakpoint_ops masked_watchpoint_breakpoint_ops; |
9c06b0b4 TJB |
10989 | |
10990 | /* Tell whether the given watchpoint is a masked hardware watchpoint. */ | |
10991 | ||
10992 | static int | |
10993 | is_masked_watchpoint (const struct breakpoint *b) | |
10994 | { | |
10995 | return b->ops == &masked_watchpoint_breakpoint_ops; | |
10996 | } | |
10997 | ||
53a5351d JM |
10998 | /* accessflag: hw_write: watch write, |
10999 | hw_read: watch read, | |
11000 | hw_access: watch access (read or write) */ | |
c906108c | 11001 | static void |
bbc13ae3 | 11002 | watch_command_1 (const char *arg, int accessflag, int from_tty, |
84f4c1fe | 11003 | int just_location, int internal) |
c906108c | 11004 | { |
d983da9c | 11005 | struct breakpoint *b, *scope_breakpoint = NULL; |
c906108c | 11006 | struct expression *exp; |
270140bd | 11007 | const struct block *exp_valid_block = NULL, *cond_exp_valid_block = NULL; |
a1442452 | 11008 | struct value *val, *mark, *result; |
bb9d5f81 | 11009 | int saved_bitpos = 0, saved_bitsize = 0; |
c906108c | 11010 | struct frame_info *frame; |
bbc13ae3 KS |
11011 | const char *exp_start = NULL; |
11012 | const char *exp_end = NULL; | |
11013 | const char *tok, *end_tok; | |
9c06b0b4 | 11014 | int toklen = -1; |
bbc13ae3 KS |
11015 | const char *cond_start = NULL; |
11016 | const char *cond_end = NULL; | |
c906108c | 11017 | enum bptype bp_type; |
37e4754d | 11018 | int thread = -1; |
0cf6dd15 | 11019 | int pc = 0; |
9c06b0b4 TJB |
11020 | /* Flag to indicate whether we are going to use masks for |
11021 | the hardware watchpoint. */ | |
11022 | int use_mask = 0; | |
11023 | CORE_ADDR mask = 0; | |
3a5c3e22 | 11024 | struct watchpoint *w; |
bbc13ae3 KS |
11025 | char *expression; |
11026 | struct cleanup *back_to; | |
c906108c | 11027 | |
37e4754d LM |
11028 | /* Make sure that we actually have parameters to parse. */ |
11029 | if (arg != NULL && arg[0] != '\0') | |
11030 | { | |
bbc13ae3 KS |
11031 | const char *value_start; |
11032 | ||
11033 | exp_end = arg + strlen (arg); | |
37e4754d | 11034 | |
9c06b0b4 TJB |
11035 | /* Look for "parameter value" pairs at the end |
11036 | of the arguments string. */ | |
bbc13ae3 | 11037 | for (tok = exp_end - 1; tok > arg; tok--) |
9c06b0b4 TJB |
11038 | { |
11039 | /* Skip whitespace at the end of the argument list. */ | |
11040 | while (tok > arg && (*tok == ' ' || *tok == '\t')) | |
11041 | tok--; | |
11042 | ||
11043 | /* Find the beginning of the last token. | |
11044 | This is the value of the parameter. */ | |
11045 | while (tok > arg && (*tok != ' ' && *tok != '\t')) | |
11046 | tok--; | |
11047 | value_start = tok + 1; | |
11048 | ||
11049 | /* Skip whitespace. */ | |
11050 | while (tok > arg && (*tok == ' ' || *tok == '\t')) | |
11051 | tok--; | |
11052 | ||
11053 | end_tok = tok; | |
11054 | ||
11055 | /* Find the beginning of the second to last token. | |
11056 | This is the parameter itself. */ | |
11057 | while (tok > arg && (*tok != ' ' && *tok != '\t')) | |
11058 | tok--; | |
11059 | tok++; | |
11060 | toklen = end_tok - tok + 1; | |
11061 | ||
61012eef | 11062 | if (toklen == 6 && startswith (tok, "thread")) |
9c06b0b4 TJB |
11063 | { |
11064 | /* At this point we've found a "thread" token, which means | |
11065 | the user is trying to set a watchpoint that triggers | |
11066 | only in a specific thread. */ | |
11067 | char *endp; | |
37e4754d | 11068 | |
9c06b0b4 TJB |
11069 | if (thread != -1) |
11070 | error(_("You can specify only one thread.")); | |
37e4754d | 11071 | |
9c06b0b4 TJB |
11072 | /* Extract the thread ID from the next token. */ |
11073 | thread = strtol (value_start, &endp, 0); | |
37e4754d | 11074 | |
9c06b0b4 TJB |
11075 | /* Check if the user provided a valid numeric value for the |
11076 | thread ID. */ | |
11077 | if (*endp != ' ' && *endp != '\t' && *endp != '\0') | |
11078 | error (_("Invalid thread ID specification %s."), value_start); | |
11079 | ||
11080 | /* Check if the thread actually exists. */ | |
11081 | if (!valid_thread_id (thread)) | |
af4908ba | 11082 | invalid_thread_id_error (thread); |
9c06b0b4 | 11083 | } |
61012eef | 11084 | else if (toklen == 4 && startswith (tok, "mask")) |
9c06b0b4 TJB |
11085 | { |
11086 | /* We've found a "mask" token, which means the user wants to | |
11087 | create a hardware watchpoint that is going to have the mask | |
11088 | facility. */ | |
11089 | struct value *mask_value, *mark; | |
37e4754d | 11090 | |
9c06b0b4 TJB |
11091 | if (use_mask) |
11092 | error(_("You can specify only one mask.")); | |
37e4754d | 11093 | |
9c06b0b4 | 11094 | use_mask = just_location = 1; |
37e4754d | 11095 | |
9c06b0b4 TJB |
11096 | mark = value_mark (); |
11097 | mask_value = parse_to_comma_and_eval (&value_start); | |
11098 | mask = value_as_address (mask_value); | |
11099 | value_free_to_mark (mark); | |
11100 | } | |
11101 | else | |
11102 | /* We didn't recognize what we found. We should stop here. */ | |
11103 | break; | |
37e4754d | 11104 | |
9c06b0b4 TJB |
11105 | /* Truncate the string and get rid of the "parameter value" pair before |
11106 | the arguments string is parsed by the parse_exp_1 function. */ | |
bbc13ae3 | 11107 | exp_end = tok; |
9c06b0b4 | 11108 | } |
37e4754d | 11109 | } |
bbc13ae3 KS |
11110 | else |
11111 | exp_end = arg; | |
37e4754d | 11112 | |
bbc13ae3 KS |
11113 | /* Parse the rest of the arguments. From here on out, everything |
11114 | is in terms of a newly allocated string instead of the original | |
11115 | ARG. */ | |
c906108c | 11116 | innermost_block = NULL; |
bbc13ae3 KS |
11117 | expression = savestring (arg, exp_end - arg); |
11118 | back_to = make_cleanup (xfree, expression); | |
11119 | exp_start = arg = expression; | |
1bb9788d | 11120 | exp = parse_exp_1 (&arg, 0, 0, 0); |
c906108c | 11121 | exp_end = arg; |
fa8a61dc TT |
11122 | /* Remove trailing whitespace from the expression before saving it. |
11123 | This makes the eventual display of the expression string a bit | |
11124 | prettier. */ | |
11125 | while (exp_end > exp_start && (exp_end[-1] == ' ' || exp_end[-1] == '\t')) | |
11126 | --exp_end; | |
11127 | ||
65d79d4b SDJ |
11128 | /* Checking if the expression is not constant. */ |
11129 | if (watchpoint_exp_is_const (exp)) | |
11130 | { | |
11131 | int len; | |
11132 | ||
11133 | len = exp_end - exp_start; | |
11134 | while (len > 0 && isspace (exp_start[len - 1])) | |
11135 | len--; | |
11136 | error (_("Cannot watch constant value `%.*s'."), len, exp_start); | |
11137 | } | |
11138 | ||
c906108c SS |
11139 | exp_valid_block = innermost_block; |
11140 | mark = value_mark (); | |
3a1115a0 | 11141 | fetch_subexp_value (exp, &pc, &val, &result, NULL, just_location); |
06a64a0b | 11142 | |
bb9d5f81 PP |
11143 | if (val != NULL && just_location) |
11144 | { | |
11145 | saved_bitpos = value_bitpos (val); | |
11146 | saved_bitsize = value_bitsize (val); | |
11147 | } | |
11148 | ||
06a64a0b TT |
11149 | if (just_location) |
11150 | { | |
9c06b0b4 TJB |
11151 | int ret; |
11152 | ||
06a64a0b | 11153 | exp_valid_block = NULL; |
a1442452 | 11154 | val = value_addr (result); |
06a64a0b TT |
11155 | release_value (val); |
11156 | value_free_to_mark (mark); | |
9c06b0b4 TJB |
11157 | |
11158 | if (use_mask) | |
11159 | { | |
11160 | ret = target_masked_watch_num_registers (value_as_address (val), | |
11161 | mask); | |
11162 | if (ret == -1) | |
11163 | error (_("This target does not support masked watchpoints.")); | |
11164 | else if (ret == -2) | |
11165 | error (_("Invalid mask or memory region.")); | |
11166 | } | |
06a64a0b TT |
11167 | } |
11168 | else if (val != NULL) | |
fa4727a6 | 11169 | release_value (val); |
c906108c | 11170 | |
bbc13ae3 KS |
11171 | tok = skip_spaces_const (arg); |
11172 | end_tok = skip_to_space_const (tok); | |
c906108c SS |
11173 | |
11174 | toklen = end_tok - tok; | |
11175 | if (toklen >= 1 && strncmp (tok, "if", toklen) == 0) | |
11176 | { | |
2d134ed3 PA |
11177 | struct expression *cond; |
11178 | ||
60e1c644 | 11179 | innermost_block = NULL; |
c906108c | 11180 | tok = cond_start = end_tok + 1; |
1bb9788d | 11181 | cond = parse_exp_1 (&tok, 0, 0, 0); |
60e1c644 PA |
11182 | |
11183 | /* The watchpoint expression may not be local, but the condition | |
11184 | may still be. E.g.: `watch global if local > 0'. */ | |
11185 | cond_exp_valid_block = innermost_block; | |
11186 | ||
2d134ed3 | 11187 | xfree (cond); |
c906108c SS |
11188 | cond_end = tok; |
11189 | } | |
11190 | if (*tok) | |
8a3fe4f8 | 11191 | error (_("Junk at end of command.")); |
c906108c | 11192 | |
d983da9c | 11193 | frame = block_innermost_frame (exp_valid_block); |
d983da9c DJ |
11194 | |
11195 | /* If the expression is "local", then set up a "watchpoint scope" | |
11196 | breakpoint at the point where we've left the scope of the watchpoint | |
11197 | expression. Create the scope breakpoint before the watchpoint, so | |
11198 | that we will encounter it first in bpstat_stop_status. */ | |
60e1c644 | 11199 | if (exp_valid_block && frame) |
d983da9c | 11200 | { |
edb3359d DJ |
11201 | if (frame_id_p (frame_unwind_caller_id (frame))) |
11202 | { | |
11203 | scope_breakpoint | |
a6d9a66e UW |
11204 | = create_internal_breakpoint (frame_unwind_caller_arch (frame), |
11205 | frame_unwind_caller_pc (frame), | |
06edf0c0 PA |
11206 | bp_watchpoint_scope, |
11207 | &momentary_breakpoint_ops); | |
d983da9c | 11208 | |
edb3359d | 11209 | scope_breakpoint->enable_state = bp_enabled; |
d983da9c | 11210 | |
edb3359d DJ |
11211 | /* Automatically delete the breakpoint when it hits. */ |
11212 | scope_breakpoint->disposition = disp_del; | |
d983da9c | 11213 | |
edb3359d DJ |
11214 | /* Only break in the proper frame (help with recursion). */ |
11215 | scope_breakpoint->frame_id = frame_unwind_caller_id (frame); | |
d983da9c | 11216 | |
edb3359d | 11217 | /* Set the address at which we will stop. */ |
a6d9a66e UW |
11218 | scope_breakpoint->loc->gdbarch |
11219 | = frame_unwind_caller_arch (frame); | |
edb3359d DJ |
11220 | scope_breakpoint->loc->requested_address |
11221 | = frame_unwind_caller_pc (frame); | |
11222 | scope_breakpoint->loc->address | |
a6d9a66e UW |
11223 | = adjust_breakpoint_address (scope_breakpoint->loc->gdbarch, |
11224 | scope_breakpoint->loc->requested_address, | |
edb3359d DJ |
11225 | scope_breakpoint->type); |
11226 | } | |
d983da9c DJ |
11227 | } |
11228 | ||
e8369a73 AB |
11229 | /* Now set up the breakpoint. We create all watchpoints as hardware |
11230 | watchpoints here even if hardware watchpoints are turned off, a call | |
11231 | to update_watchpoint later in this function will cause the type to | |
11232 | drop back to bp_watchpoint (software watchpoint) if required. */ | |
11233 | ||
11234 | if (accessflag == hw_read) | |
11235 | bp_type = bp_read_watchpoint; | |
11236 | else if (accessflag == hw_access) | |
11237 | bp_type = bp_access_watchpoint; | |
11238 | else | |
11239 | bp_type = bp_hardware_watchpoint; | |
3a5c3e22 PA |
11240 | |
11241 | w = XCNEW (struct watchpoint); | |
11242 | b = &w->base; | |
348d480f | 11243 | if (use_mask) |
3a5c3e22 PA |
11244 | init_raw_breakpoint_without_location (b, NULL, bp_type, |
11245 | &masked_watchpoint_breakpoint_ops); | |
348d480f | 11246 | else |
3a5c3e22 PA |
11247 | init_raw_breakpoint_without_location (b, NULL, bp_type, |
11248 | &watchpoint_breakpoint_ops); | |
37e4754d | 11249 | b->thread = thread; |
b5de0fa7 | 11250 | b->disposition = disp_donttouch; |
348d480f | 11251 | b->pspace = current_program_space; |
3a5c3e22 PA |
11252 | w->exp = exp; |
11253 | w->exp_valid_block = exp_valid_block; | |
11254 | w->cond_exp_valid_block = cond_exp_valid_block; | |
06a64a0b TT |
11255 | if (just_location) |
11256 | { | |
11257 | struct type *t = value_type (val); | |
11258 | CORE_ADDR addr = value_as_address (val); | |
11259 | char *name; | |
11260 | ||
11261 | t = check_typedef (TYPE_TARGET_TYPE (check_typedef (t))); | |
11262 | name = type_to_string (t); | |
11263 | ||
3a5c3e22 | 11264 | w->exp_string_reparse = xstrprintf ("* (%s *) %s", name, |
d63d0675 | 11265 | core_addr_to_string (addr)); |
06a64a0b TT |
11266 | xfree (name); |
11267 | ||
3a5c3e22 | 11268 | w->exp_string = xstrprintf ("-location %.*s", |
d63d0675 JK |
11269 | (int) (exp_end - exp_start), exp_start); |
11270 | ||
06a64a0b TT |
11271 | /* The above expression is in C. */ |
11272 | b->language = language_c; | |
11273 | } | |
11274 | else | |
3a5c3e22 | 11275 | w->exp_string = savestring (exp_start, exp_end - exp_start); |
9c06b0b4 TJB |
11276 | |
11277 | if (use_mask) | |
11278 | { | |
3a5c3e22 | 11279 | w->hw_wp_mask = mask; |
9c06b0b4 TJB |
11280 | } |
11281 | else | |
11282 | { | |
3a5c3e22 | 11283 | w->val = val; |
bb9d5f81 PP |
11284 | w->val_bitpos = saved_bitpos; |
11285 | w->val_bitsize = saved_bitsize; | |
3a5c3e22 | 11286 | w->val_valid = 1; |
9c06b0b4 | 11287 | } |
77b06cd7 | 11288 | |
c906108c SS |
11289 | if (cond_start) |
11290 | b->cond_string = savestring (cond_start, cond_end - cond_start); | |
11291 | else | |
11292 | b->cond_string = 0; | |
c5aa993b | 11293 | |
c906108c | 11294 | if (frame) |
f6bc2008 | 11295 | { |
3a5c3e22 PA |
11296 | w->watchpoint_frame = get_frame_id (frame); |
11297 | w->watchpoint_thread = inferior_ptid; | |
f6bc2008 | 11298 | } |
c906108c | 11299 | else |
f6bc2008 | 11300 | { |
3a5c3e22 PA |
11301 | w->watchpoint_frame = null_frame_id; |
11302 | w->watchpoint_thread = null_ptid; | |
f6bc2008 | 11303 | } |
c906108c | 11304 | |
d983da9c | 11305 | if (scope_breakpoint != NULL) |
c906108c | 11306 | { |
d983da9c DJ |
11307 | /* The scope breakpoint is related to the watchpoint. We will |
11308 | need to act on them together. */ | |
11309 | b->related_breakpoint = scope_breakpoint; | |
11310 | scope_breakpoint->related_breakpoint = b; | |
c906108c | 11311 | } |
d983da9c | 11312 | |
06a64a0b TT |
11313 | if (!just_location) |
11314 | value_free_to_mark (mark); | |
2d134ed3 | 11315 | |
492d29ea | 11316 | TRY |
a9634178 TJB |
11317 | { |
11318 | /* Finally update the new watchpoint. This creates the locations | |
11319 | that should be inserted. */ | |
3a5c3e22 | 11320 | update_watchpoint (w, 1); |
a9634178 | 11321 | } |
492d29ea | 11322 | CATCH (e, RETURN_MASK_ALL) |
a9634178 TJB |
11323 | { |
11324 | delete_breakpoint (b); | |
11325 | throw_exception (e); | |
11326 | } | |
492d29ea | 11327 | END_CATCH |
a9634178 | 11328 | |
3ea46bff | 11329 | install_breakpoint (internal, b, 1); |
bbc13ae3 | 11330 | do_cleanups (back_to); |
c906108c SS |
11331 | } |
11332 | ||
e09342b5 | 11333 | /* Return count of debug registers needed to watch the given expression. |
e09342b5 | 11334 | If the watchpoint cannot be handled in hardware return zero. */ |
c906108c | 11335 | |
c906108c | 11336 | static int |
a9634178 | 11337 | can_use_hardware_watchpoint (struct value *v) |
c906108c SS |
11338 | { |
11339 | int found_memory_cnt = 0; | |
2e70b7b9 | 11340 | struct value *head = v; |
c906108c SS |
11341 | |
11342 | /* Did the user specifically forbid us to use hardware watchpoints? */ | |
c5aa993b | 11343 | if (!can_use_hw_watchpoints) |
c906108c | 11344 | return 0; |
c5aa993b | 11345 | |
5c44784c JM |
11346 | /* Make sure that the value of the expression depends only upon |
11347 | memory contents, and values computed from them within GDB. If we | |
11348 | find any register references or function calls, we can't use a | |
11349 | hardware watchpoint. | |
11350 | ||
11351 | The idea here is that evaluating an expression generates a series | |
11352 | of values, one holding the value of every subexpression. (The | |
11353 | expression a*b+c has five subexpressions: a, b, a*b, c, and | |
11354 | a*b+c.) GDB's values hold almost enough information to establish | |
11355 | the criteria given above --- they identify memory lvalues, | |
11356 | register lvalues, computed values, etcetera. So we can evaluate | |
11357 | the expression, and then scan the chain of values that leaves | |
11358 | behind to decide whether we can detect any possible change to the | |
11359 | expression's final value using only hardware watchpoints. | |
11360 | ||
11361 | However, I don't think that the values returned by inferior | |
11362 | function calls are special in any way. So this function may not | |
11363 | notice that an expression involving an inferior function call | |
11364 | can't be watched with hardware watchpoints. FIXME. */ | |
17cf0ecd | 11365 | for (; v; v = value_next (v)) |
c906108c | 11366 | { |
5c44784c | 11367 | if (VALUE_LVAL (v) == lval_memory) |
c906108c | 11368 | { |
8464be76 DJ |
11369 | if (v != head && value_lazy (v)) |
11370 | /* A lazy memory lvalue in the chain is one that GDB never | |
11371 | needed to fetch; we either just used its address (e.g., | |
11372 | `a' in `a.b') or we never needed it at all (e.g., `a' | |
11373 | in `a,b'). This doesn't apply to HEAD; if that is | |
11374 | lazy then it was not readable, but watch it anyway. */ | |
5c44784c | 11375 | ; |
53a5351d | 11376 | else |
5c44784c JM |
11377 | { |
11378 | /* Ahh, memory we actually used! Check if we can cover | |
11379 | it with hardware watchpoints. */ | |
df407dfe | 11380 | struct type *vtype = check_typedef (value_type (v)); |
2e70b7b9 MS |
11381 | |
11382 | /* We only watch structs and arrays if user asked for it | |
11383 | explicitly, never if they just happen to appear in a | |
11384 | middle of some value chain. */ | |
11385 | if (v == head | |
11386 | || (TYPE_CODE (vtype) != TYPE_CODE_STRUCT | |
11387 | && TYPE_CODE (vtype) != TYPE_CODE_ARRAY)) | |
11388 | { | |
42ae5230 | 11389 | CORE_ADDR vaddr = value_address (v); |
e09342b5 TJB |
11390 | int len; |
11391 | int num_regs; | |
11392 | ||
a9634178 | 11393 | len = (target_exact_watchpoints |
e09342b5 TJB |
11394 | && is_scalar_type_recursive (vtype))? |
11395 | 1 : TYPE_LENGTH (value_type (v)); | |
2e70b7b9 | 11396 | |
e09342b5 TJB |
11397 | num_regs = target_region_ok_for_hw_watchpoint (vaddr, len); |
11398 | if (!num_regs) | |
2e70b7b9 MS |
11399 | return 0; |
11400 | else | |
e09342b5 | 11401 | found_memory_cnt += num_regs; |
2e70b7b9 | 11402 | } |
5c44784c | 11403 | } |
c5aa993b | 11404 | } |
5086187c AC |
11405 | else if (VALUE_LVAL (v) != not_lval |
11406 | && deprecated_value_modifiable (v) == 0) | |
38b6c3b3 | 11407 | return 0; /* These are values from the history (e.g., $1). */ |
5086187c | 11408 | else if (VALUE_LVAL (v) == lval_register) |
38b6c3b3 | 11409 | return 0; /* Cannot watch a register with a HW watchpoint. */ |
c906108c SS |
11410 | } |
11411 | ||
11412 | /* The expression itself looks suitable for using a hardware | |
11413 | watchpoint, but give the target machine a chance to reject it. */ | |
11414 | return found_memory_cnt; | |
11415 | } | |
11416 | ||
8b93c638 | 11417 | void |
84f4c1fe | 11418 | watch_command_wrapper (char *arg, int from_tty, int internal) |
8b93c638 | 11419 | { |
84f4c1fe | 11420 | watch_command_1 (arg, hw_write, from_tty, 0, internal); |
06a64a0b TT |
11421 | } |
11422 | ||
06a64a0b TT |
11423 | /* A helper function that looks for the "-location" argument and then |
11424 | calls watch_command_1. */ | |
11425 | ||
11426 | static void | |
11427 | watch_maybe_just_location (char *arg, int accessflag, int from_tty) | |
11428 | { | |
11429 | int just_location = 0; | |
11430 | ||
11431 | if (arg | |
11432 | && (check_for_argument (&arg, "-location", sizeof ("-location") - 1) | |
11433 | || check_for_argument (&arg, "-l", sizeof ("-l") - 1))) | |
11434 | { | |
e9cafbcc | 11435 | arg = skip_spaces (arg); |
06a64a0b TT |
11436 | just_location = 1; |
11437 | } | |
11438 | ||
84f4c1fe | 11439 | watch_command_1 (arg, accessflag, from_tty, just_location, 0); |
8b93c638 | 11440 | } |
8926118c | 11441 | |
c5aa993b | 11442 | static void |
fba45db2 | 11443 | watch_command (char *arg, int from_tty) |
c906108c | 11444 | { |
06a64a0b | 11445 | watch_maybe_just_location (arg, hw_write, from_tty); |
c906108c SS |
11446 | } |
11447 | ||
8b93c638 | 11448 | void |
84f4c1fe | 11449 | rwatch_command_wrapper (char *arg, int from_tty, int internal) |
8b93c638 | 11450 | { |
84f4c1fe | 11451 | watch_command_1 (arg, hw_read, from_tty, 0, internal); |
8b93c638 | 11452 | } |
8926118c | 11453 | |
c5aa993b | 11454 | static void |
fba45db2 | 11455 | rwatch_command (char *arg, int from_tty) |
c906108c | 11456 | { |
06a64a0b | 11457 | watch_maybe_just_location (arg, hw_read, from_tty); |
c906108c SS |
11458 | } |
11459 | ||
8b93c638 | 11460 | void |
84f4c1fe | 11461 | awatch_command_wrapper (char *arg, int from_tty, int internal) |
8b93c638 | 11462 | { |
84f4c1fe | 11463 | watch_command_1 (arg, hw_access, from_tty, 0, internal); |
8b93c638 | 11464 | } |
8926118c | 11465 | |
c5aa993b | 11466 | static void |
fba45db2 | 11467 | awatch_command (char *arg, int from_tty) |
c906108c | 11468 | { |
06a64a0b | 11469 | watch_maybe_just_location (arg, hw_access, from_tty); |
c906108c | 11470 | } |
c906108c | 11471 | \f |
c5aa993b | 11472 | |
cfc31633 PA |
11473 | /* Data for the FSM that manages the until(location)/advance commands |
11474 | in infcmd.c. Here because it uses the mechanisms of | |
11475 | breakpoints. */ | |
c906108c | 11476 | |
cfc31633 | 11477 | struct until_break_fsm |
bfec99b2 | 11478 | { |
cfc31633 PA |
11479 | /* The base class. */ |
11480 | struct thread_fsm thread_fsm; | |
11481 | ||
11482 | /* The thread that as current when the command was executed. */ | |
11483 | int thread; | |
11484 | ||
11485 | /* The breakpoint set at the destination location. */ | |
11486 | struct breakpoint *location_breakpoint; | |
11487 | ||
11488 | /* Breakpoint set at the return address in the caller frame. May be | |
11489 | NULL. */ | |
11490 | struct breakpoint *caller_breakpoint; | |
bfec99b2 PA |
11491 | }; |
11492 | ||
cfc31633 PA |
11493 | static void until_break_fsm_clean_up (struct thread_fsm *self); |
11494 | static int until_break_fsm_should_stop (struct thread_fsm *self); | |
11495 | static enum async_reply_reason | |
11496 | until_break_fsm_async_reply_reason (struct thread_fsm *self); | |
11497 | ||
11498 | /* until_break_fsm's vtable. */ | |
11499 | ||
11500 | static struct thread_fsm_ops until_break_fsm_ops = | |
11501 | { | |
11502 | NULL, /* dtor */ | |
11503 | until_break_fsm_clean_up, | |
11504 | until_break_fsm_should_stop, | |
11505 | NULL, /* return_value */ | |
11506 | until_break_fsm_async_reply_reason, | |
11507 | }; | |
11508 | ||
11509 | /* Allocate a new until_break_command_fsm. */ | |
11510 | ||
11511 | static struct until_break_fsm * | |
11512 | new_until_break_fsm (int thread, | |
11513 | struct breakpoint *location_breakpoint, | |
11514 | struct breakpoint *caller_breakpoint) | |
11515 | { | |
11516 | struct until_break_fsm *sm; | |
11517 | ||
11518 | sm = XCNEW (struct until_break_fsm); | |
11519 | thread_fsm_ctor (&sm->thread_fsm, &until_break_fsm_ops); | |
11520 | ||
11521 | sm->thread = thread; | |
11522 | sm->location_breakpoint = location_breakpoint; | |
11523 | sm->caller_breakpoint = caller_breakpoint; | |
11524 | ||
11525 | return sm; | |
11526 | } | |
11527 | ||
11528 | /* Implementation of the 'should_stop' FSM method for the | |
11529 | until(location)/advance commands. */ | |
11530 | ||
11531 | static int | |
11532 | until_break_fsm_should_stop (struct thread_fsm *self) | |
11533 | { | |
11534 | struct until_break_fsm *sm = (struct until_break_fsm *) self; | |
11535 | struct thread_info *tp = inferior_thread (); | |
11536 | ||
11537 | if (bpstat_find_breakpoint (tp->control.stop_bpstat, | |
11538 | sm->location_breakpoint) != NULL | |
11539 | || (sm->caller_breakpoint != NULL | |
11540 | && bpstat_find_breakpoint (tp->control.stop_bpstat, | |
11541 | sm->caller_breakpoint) != NULL)) | |
11542 | thread_fsm_set_finished (self); | |
11543 | ||
11544 | return 1; | |
11545 | } | |
11546 | ||
11547 | /* Implementation of the 'clean_up' FSM method for the | |
11548 | until(location)/advance commands. */ | |
11549 | ||
c2c6d25f | 11550 | static void |
cfc31633 | 11551 | until_break_fsm_clean_up (struct thread_fsm *self) |
43ff13b4 | 11552 | { |
cfc31633 | 11553 | struct until_break_fsm *sm = (struct until_break_fsm *) self; |
bfec99b2 | 11554 | |
cfc31633 PA |
11555 | /* Clean up our temporary breakpoints. */ |
11556 | if (sm->location_breakpoint != NULL) | |
11557 | { | |
11558 | delete_breakpoint (sm->location_breakpoint); | |
11559 | sm->location_breakpoint = NULL; | |
11560 | } | |
11561 | if (sm->caller_breakpoint != NULL) | |
11562 | { | |
11563 | delete_breakpoint (sm->caller_breakpoint); | |
11564 | sm->caller_breakpoint = NULL; | |
11565 | } | |
11566 | delete_longjmp_breakpoint (sm->thread); | |
11567 | } | |
11568 | ||
11569 | /* Implementation of the 'async_reply_reason' FSM method for the | |
11570 | until(location)/advance commands. */ | |
11571 | ||
11572 | static enum async_reply_reason | |
11573 | until_break_fsm_async_reply_reason (struct thread_fsm *self) | |
11574 | { | |
11575 | return EXEC_ASYNC_LOCATION_REACHED; | |
43ff13b4 JM |
11576 | } |
11577 | ||
c906108c | 11578 | void |
ae66c1fc | 11579 | until_break_command (char *arg, int from_tty, int anywhere) |
c906108c SS |
11580 | { |
11581 | struct symtabs_and_lines sals; | |
11582 | struct symtab_and_line sal; | |
8556afb4 PA |
11583 | struct frame_info *frame; |
11584 | struct gdbarch *frame_gdbarch; | |
11585 | struct frame_id stack_frame_id; | |
11586 | struct frame_id caller_frame_id; | |
cfc31633 PA |
11587 | struct breakpoint *location_breakpoint; |
11588 | struct breakpoint *caller_breakpoint = NULL; | |
f00aae0f | 11589 | struct cleanup *old_chain, *cleanup; |
186c406b TT |
11590 | int thread; |
11591 | struct thread_info *tp; | |
f00aae0f | 11592 | struct event_location *location; |
cfc31633 | 11593 | struct until_break_fsm *sm; |
c906108c | 11594 | |
70509625 | 11595 | clear_proceed_status (0); |
c906108c SS |
11596 | |
11597 | /* Set a breakpoint where the user wants it and at return from | |
4a64f543 | 11598 | this function. */ |
c5aa993b | 11599 | |
f00aae0f KS |
11600 | location = string_to_event_location (&arg, current_language); |
11601 | cleanup = make_cleanup_delete_event_location (location); | |
11602 | ||
1bfeeb0f | 11603 | if (last_displayed_sal_is_valid ()) |
f00aae0f | 11604 | sals = decode_line_1 (location, DECODE_LINE_FUNFIRSTLINE, |
1bfeeb0f | 11605 | get_last_displayed_symtab (), |
f8eba3c6 | 11606 | get_last_displayed_line ()); |
c906108c | 11607 | else |
f00aae0f | 11608 | sals = decode_line_1 (location, DECODE_LINE_FUNFIRSTLINE, |
f8eba3c6 | 11609 | (struct symtab *) NULL, 0); |
c5aa993b | 11610 | |
c906108c | 11611 | if (sals.nelts != 1) |
8a3fe4f8 | 11612 | error (_("Couldn't get information on specified line.")); |
c5aa993b | 11613 | |
c906108c | 11614 | sal = sals.sals[0]; |
4a64f543 | 11615 | xfree (sals.sals); /* malloc'd, so freed. */ |
c5aa993b | 11616 | |
c906108c | 11617 | if (*arg) |
8a3fe4f8 | 11618 | error (_("Junk at end of arguments.")); |
c5aa993b | 11619 | |
c906108c | 11620 | resolve_sal_pc (&sal); |
c5aa993b | 11621 | |
186c406b TT |
11622 | tp = inferior_thread (); |
11623 | thread = tp->num; | |
11624 | ||
883bc8d1 PA |
11625 | old_chain = make_cleanup (null_cleanup, NULL); |
11626 | ||
8556afb4 PA |
11627 | /* Note linespec handling above invalidates the frame chain. |
11628 | Installing a breakpoint also invalidates the frame chain (as it | |
11629 | may need to switch threads), so do any frame handling before | |
11630 | that. */ | |
11631 | ||
11632 | frame = get_selected_frame (NULL); | |
11633 | frame_gdbarch = get_frame_arch (frame); | |
11634 | stack_frame_id = get_stack_frame_id (frame); | |
11635 | caller_frame_id = frame_unwind_caller_id (frame); | |
883bc8d1 | 11636 | |
ae66c1fc EZ |
11637 | /* Keep within the current frame, or in frames called by the current |
11638 | one. */ | |
edb3359d | 11639 | |
883bc8d1 | 11640 | if (frame_id_p (caller_frame_id)) |
c906108c | 11641 | { |
883bc8d1 | 11642 | struct symtab_and_line sal2; |
cfc31633 | 11643 | struct gdbarch *caller_gdbarch; |
883bc8d1 PA |
11644 | |
11645 | sal2 = find_pc_line (frame_unwind_caller_pc (frame), 0); | |
11646 | sal2.pc = frame_unwind_caller_pc (frame); | |
cfc31633 PA |
11647 | caller_gdbarch = frame_unwind_caller_arch (frame); |
11648 | caller_breakpoint = set_momentary_breakpoint (caller_gdbarch, | |
11649 | sal2, | |
11650 | caller_frame_id, | |
11651 | bp_until); | |
11652 | make_cleanup_delete_breakpoint (caller_breakpoint); | |
186c406b | 11653 | |
883bc8d1 | 11654 | set_longjmp_breakpoint (tp, caller_frame_id); |
186c406b | 11655 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c906108c | 11656 | } |
c5aa993b | 11657 | |
c70a6932 JK |
11658 | /* set_momentary_breakpoint could invalidate FRAME. */ |
11659 | frame = NULL; | |
11660 | ||
883bc8d1 PA |
11661 | if (anywhere) |
11662 | /* If the user told us to continue until a specified location, | |
11663 | we don't specify a frame at which we need to stop. */ | |
cfc31633 PA |
11664 | location_breakpoint = set_momentary_breakpoint (frame_gdbarch, sal, |
11665 | null_frame_id, bp_until); | |
883bc8d1 PA |
11666 | else |
11667 | /* Otherwise, specify the selected frame, because we want to stop | |
11668 | only at the very same frame. */ | |
cfc31633 PA |
11669 | location_breakpoint = set_momentary_breakpoint (frame_gdbarch, sal, |
11670 | stack_frame_id, bp_until); | |
11671 | make_cleanup_delete_breakpoint (location_breakpoint); | |
883bc8d1 | 11672 | |
cfc31633 PA |
11673 | sm = new_until_break_fsm (tp->num, location_breakpoint, caller_breakpoint); |
11674 | tp->thread_fsm = &sm->thread_fsm; | |
f107f563 | 11675 | |
cfc31633 | 11676 | discard_cleanups (old_chain); |
f107f563 | 11677 | |
cfc31633 | 11678 | proceed (-1, GDB_SIGNAL_DEFAULT); |
f00aae0f KS |
11679 | |
11680 | do_cleanups (cleanup); | |
c906108c | 11681 | } |
ae66c1fc | 11682 | |
c906108c SS |
11683 | /* This function attempts to parse an optional "if <cond>" clause |
11684 | from the arg string. If one is not found, it returns NULL. | |
c5aa993b | 11685 | |
c906108c SS |
11686 | Else, it returns a pointer to the condition string. (It does not |
11687 | attempt to evaluate the string against a particular block.) And, | |
11688 | it updates arg to point to the first character following the parsed | |
4a64f543 | 11689 | if clause in the arg string. */ |
53a5351d | 11690 | |
916703c0 | 11691 | char * |
fba45db2 | 11692 | ep_parse_optional_if_clause (char **arg) |
c906108c | 11693 | { |
c5aa993b JM |
11694 | char *cond_string; |
11695 | ||
11696 | if (((*arg)[0] != 'i') || ((*arg)[1] != 'f') || !isspace ((*arg)[2])) | |
c906108c | 11697 | return NULL; |
c5aa993b | 11698 | |
4a64f543 | 11699 | /* Skip the "if" keyword. */ |
c906108c | 11700 | (*arg) += 2; |
c5aa993b | 11701 | |
c906108c | 11702 | /* Skip any extra leading whitespace, and record the start of the |
4a64f543 | 11703 | condition string. */ |
e9cafbcc | 11704 | *arg = skip_spaces (*arg); |
c906108c | 11705 | cond_string = *arg; |
c5aa993b | 11706 | |
4a64f543 MS |
11707 | /* Assume that the condition occupies the remainder of the arg |
11708 | string. */ | |
c906108c | 11709 | (*arg) += strlen (cond_string); |
c5aa993b | 11710 | |
c906108c SS |
11711 | return cond_string; |
11712 | } | |
c5aa993b | 11713 | |
c906108c SS |
11714 | /* Commands to deal with catching events, such as signals, exceptions, |
11715 | process start/exit, etc. */ | |
c5aa993b JM |
11716 | |
11717 | typedef enum | |
11718 | { | |
44feb3ce TT |
11719 | catch_fork_temporary, catch_vfork_temporary, |
11720 | catch_fork_permanent, catch_vfork_permanent | |
c5aa993b JM |
11721 | } |
11722 | catch_fork_kind; | |
11723 | ||
c906108c | 11724 | static void |
cc59ec59 MS |
11725 | catch_fork_command_1 (char *arg, int from_tty, |
11726 | struct cmd_list_element *command) | |
c906108c | 11727 | { |
a6d9a66e | 11728 | struct gdbarch *gdbarch = get_current_arch (); |
c5aa993b | 11729 | char *cond_string = NULL; |
44feb3ce TT |
11730 | catch_fork_kind fork_kind; |
11731 | int tempflag; | |
11732 | ||
11733 | fork_kind = (catch_fork_kind) (uintptr_t) get_cmd_context (command); | |
11734 | tempflag = (fork_kind == catch_fork_temporary | |
11735 | || fork_kind == catch_vfork_temporary); | |
c5aa993b | 11736 | |
44feb3ce TT |
11737 | if (!arg) |
11738 | arg = ""; | |
e9cafbcc | 11739 | arg = skip_spaces (arg); |
c5aa993b | 11740 | |
c906108c | 11741 | /* The allowed syntax is: |
c5aa993b JM |
11742 | catch [v]fork |
11743 | catch [v]fork if <cond> | |
11744 | ||
4a64f543 | 11745 | First, check if there's an if clause. */ |
c906108c | 11746 | cond_string = ep_parse_optional_if_clause (&arg); |
c5aa993b | 11747 | |
c906108c | 11748 | if ((*arg != '\0') && !isspace (*arg)) |
8a3fe4f8 | 11749 | error (_("Junk at end of arguments.")); |
c5aa993b | 11750 | |
c906108c | 11751 | /* If this target supports it, create a fork or vfork catchpoint |
4a64f543 | 11752 | and enable reporting of such events. */ |
c5aa993b JM |
11753 | switch (fork_kind) |
11754 | { | |
44feb3ce TT |
11755 | case catch_fork_temporary: |
11756 | case catch_fork_permanent: | |
a6d9a66e | 11757 | create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string, |
ce78b96d | 11758 | &catch_fork_breakpoint_ops); |
c906108c | 11759 | break; |
44feb3ce TT |
11760 | case catch_vfork_temporary: |
11761 | case catch_vfork_permanent: | |
a6d9a66e | 11762 | create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string, |
ce78b96d | 11763 | &catch_vfork_breakpoint_ops); |
c906108c | 11764 | break; |
c5aa993b | 11765 | default: |
8a3fe4f8 | 11766 | error (_("unsupported or unknown fork kind; cannot catch it")); |
c906108c | 11767 | break; |
c5aa993b | 11768 | } |
c906108c SS |
11769 | } |
11770 | ||
11771 | static void | |
cc59ec59 MS |
11772 | catch_exec_command_1 (char *arg, int from_tty, |
11773 | struct cmd_list_element *command) | |
c906108c | 11774 | { |
b4d90040 | 11775 | struct exec_catchpoint *c; |
a6d9a66e | 11776 | struct gdbarch *gdbarch = get_current_arch (); |
44feb3ce | 11777 | int tempflag; |
c5aa993b | 11778 | char *cond_string = NULL; |
c906108c | 11779 | |
44feb3ce TT |
11780 | tempflag = get_cmd_context (command) == CATCH_TEMPORARY; |
11781 | ||
11782 | if (!arg) | |
11783 | arg = ""; | |
e9cafbcc | 11784 | arg = skip_spaces (arg); |
c906108c SS |
11785 | |
11786 | /* The allowed syntax is: | |
c5aa993b JM |
11787 | catch exec |
11788 | catch exec if <cond> | |
c906108c | 11789 | |
4a64f543 | 11790 | First, check if there's an if clause. */ |
c906108c SS |
11791 | cond_string = ep_parse_optional_if_clause (&arg); |
11792 | ||
11793 | if ((*arg != '\0') && !isspace (*arg)) | |
8a3fe4f8 | 11794 | error (_("Junk at end of arguments.")); |
c906108c | 11795 | |
b4d90040 PA |
11796 | c = XNEW (struct exec_catchpoint); |
11797 | init_catchpoint (&c->base, gdbarch, tempflag, cond_string, | |
11798 | &catch_exec_breakpoint_ops); | |
11799 | c->exec_pathname = NULL; | |
11800 | ||
3ea46bff | 11801 | install_breakpoint (0, &c->base, 1); |
c906108c | 11802 | } |
c5aa993b | 11803 | |
9ac4176b | 11804 | void |
28010a5d PA |
11805 | init_ada_exception_breakpoint (struct breakpoint *b, |
11806 | struct gdbarch *gdbarch, | |
11807 | struct symtab_and_line sal, | |
11808 | char *addr_string, | |
c0a91b2b | 11809 | const struct breakpoint_ops *ops, |
28010a5d | 11810 | int tempflag, |
349774ef | 11811 | int enabled, |
28010a5d | 11812 | int from_tty) |
f7f9143b | 11813 | { |
f7f9143b JB |
11814 | if (from_tty) |
11815 | { | |
5af949e3 UW |
11816 | struct gdbarch *loc_gdbarch = get_sal_arch (sal); |
11817 | if (!loc_gdbarch) | |
11818 | loc_gdbarch = gdbarch; | |
11819 | ||
6c95b8df PA |
11820 | describe_other_breakpoints (loc_gdbarch, |
11821 | sal.pspace, sal.pc, sal.section, -1); | |
f7f9143b JB |
11822 | /* FIXME: brobecker/2006-12-28: Actually, re-implement a special |
11823 | version for exception catchpoints, because two catchpoints | |
11824 | used for different exception names will use the same address. | |
11825 | In this case, a "breakpoint ... also set at..." warning is | |
4a64f543 | 11826 | unproductive. Besides, the warning phrasing is also a bit |
e5dd4106 | 11827 | inappropriate, we should use the word catchpoint, and tell |
f7f9143b JB |
11828 | the user what type of catchpoint it is. The above is good |
11829 | enough for now, though. */ | |
11830 | } | |
11831 | ||
28010a5d | 11832 | init_raw_breakpoint (b, gdbarch, sal, bp_breakpoint, ops); |
f7f9143b | 11833 | |
349774ef | 11834 | b->enable_state = enabled ? bp_enabled : bp_disabled; |
f7f9143b | 11835 | b->disposition = tempflag ? disp_del : disp_donttouch; |
f00aae0f KS |
11836 | b->location = string_to_event_location (&addr_string, |
11837 | language_def (language_ada)); | |
f7f9143b | 11838 | b->language = language_ada; |
f7f9143b JB |
11839 | } |
11840 | ||
c906108c | 11841 | static void |
fba45db2 | 11842 | catch_command (char *arg, int from_tty) |
c906108c | 11843 | { |
44feb3ce | 11844 | error (_("Catch requires an event name.")); |
c906108c SS |
11845 | } |
11846 | \f | |
11847 | ||
11848 | static void | |
fba45db2 | 11849 | tcatch_command (char *arg, int from_tty) |
c906108c | 11850 | { |
44feb3ce | 11851 | error (_("Catch requires an event name.")); |
c906108c SS |
11852 | } |
11853 | ||
8a2c437b TT |
11854 | /* A qsort comparison function that sorts breakpoints in order. */ |
11855 | ||
11856 | static int | |
11857 | compare_breakpoints (const void *a, const void *b) | |
11858 | { | |
9a3c8263 | 11859 | const breakpoint_p *ba = (const breakpoint_p *) a; |
8a2c437b | 11860 | uintptr_t ua = (uintptr_t) *ba; |
9a3c8263 | 11861 | const breakpoint_p *bb = (const breakpoint_p *) b; |
8a2c437b TT |
11862 | uintptr_t ub = (uintptr_t) *bb; |
11863 | ||
11864 | if ((*ba)->number < (*bb)->number) | |
11865 | return -1; | |
11866 | else if ((*ba)->number > (*bb)->number) | |
11867 | return 1; | |
11868 | ||
11869 | /* Now sort by address, in case we see, e..g, two breakpoints with | |
11870 | the number 0. */ | |
11871 | if (ua < ub) | |
11872 | return -1; | |
94b0e70d | 11873 | return ua > ub ? 1 : 0; |
8a2c437b TT |
11874 | } |
11875 | ||
80f8a6eb | 11876 | /* Delete breakpoints by address or line. */ |
c906108c SS |
11877 | |
11878 | static void | |
fba45db2 | 11879 | clear_command (char *arg, int from_tty) |
c906108c | 11880 | { |
8a2c437b | 11881 | struct breakpoint *b, *prev; |
d6e956e5 VP |
11882 | VEC(breakpoint_p) *found = 0; |
11883 | int ix; | |
c906108c SS |
11884 | int default_match; |
11885 | struct symtabs_and_lines sals; | |
11886 | struct symtab_and_line sal; | |
c906108c | 11887 | int i; |
8a2c437b | 11888 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
c906108c SS |
11889 | |
11890 | if (arg) | |
11891 | { | |
39cf75f7 DE |
11892 | sals = decode_line_with_current_source (arg, |
11893 | (DECODE_LINE_FUNFIRSTLINE | |
11894 | | DECODE_LINE_LIST_MODE)); | |
cf4ded82 | 11895 | make_cleanup (xfree, sals.sals); |
c906108c SS |
11896 | default_match = 0; |
11897 | } | |
11898 | else | |
11899 | { | |
8d749320 | 11900 | sals.sals = XNEW (struct symtab_and_line); |
80f8a6eb | 11901 | make_cleanup (xfree, sals.sals); |
4a64f543 | 11902 | init_sal (&sal); /* Initialize to zeroes. */ |
1bfeeb0f JL |
11903 | |
11904 | /* Set sal's line, symtab, pc, and pspace to the values | |
11905 | corresponding to the last call to print_frame_info. If the | |
11906 | codepoint is not valid, this will set all the fields to 0. */ | |
11907 | get_last_displayed_sal (&sal); | |
c906108c | 11908 | if (sal.symtab == 0) |
8a3fe4f8 | 11909 | error (_("No source file specified.")); |
c906108c SS |
11910 | |
11911 | sals.sals[0] = sal; | |
11912 | sals.nelts = 1; | |
11913 | ||
11914 | default_match = 1; | |
11915 | } | |
11916 | ||
4a64f543 MS |
11917 | /* We don't call resolve_sal_pc here. That's not as bad as it |
11918 | seems, because all existing breakpoints typically have both | |
11919 | file/line and pc set. So, if clear is given file/line, we can | |
11920 | match this to existing breakpoint without obtaining pc at all. | |
ed0616c6 VP |
11921 | |
11922 | We only support clearing given the address explicitly | |
11923 | present in breakpoint table. Say, we've set breakpoint | |
4a64f543 | 11924 | at file:line. There were several PC values for that file:line, |
ed0616c6 | 11925 | due to optimization, all in one block. |
4a64f543 MS |
11926 | |
11927 | We've picked one PC value. If "clear" is issued with another | |
ed0616c6 VP |
11928 | PC corresponding to the same file:line, the breakpoint won't |
11929 | be cleared. We probably can still clear the breakpoint, but | |
11930 | since the other PC value is never presented to user, user | |
11931 | can only find it by guessing, and it does not seem important | |
11932 | to support that. */ | |
11933 | ||
4a64f543 MS |
11934 | /* For each line spec given, delete bps which correspond to it. Do |
11935 | it in two passes, solely to preserve the current behavior that | |
11936 | from_tty is forced true if we delete more than one | |
11937 | breakpoint. */ | |
c906108c | 11938 | |
80f8a6eb | 11939 | found = NULL; |
8a2c437b | 11940 | make_cleanup (VEC_cleanup (breakpoint_p), &found); |
c906108c SS |
11941 | for (i = 0; i < sals.nelts; i++) |
11942 | { | |
05cba821 JK |
11943 | const char *sal_fullname; |
11944 | ||
c906108c | 11945 | /* If exact pc given, clear bpts at that pc. |
c5aa993b JM |
11946 | If line given (pc == 0), clear all bpts on specified line. |
11947 | If defaulting, clear all bpts on default line | |
c906108c | 11948 | or at default pc. |
c5aa993b JM |
11949 | |
11950 | defaulting sal.pc != 0 tests to do | |
11951 | ||
11952 | 0 1 pc | |
11953 | 1 1 pc _and_ line | |
11954 | 0 0 line | |
11955 | 1 0 <can't happen> */ | |
c906108c SS |
11956 | |
11957 | sal = sals.sals[i]; | |
05cba821 JK |
11958 | sal_fullname = (sal.symtab == NULL |
11959 | ? NULL : symtab_to_fullname (sal.symtab)); | |
c906108c | 11960 | |
4a64f543 | 11961 | /* Find all matching breakpoints and add them to 'found'. */ |
d6e956e5 | 11962 | ALL_BREAKPOINTS (b) |
c5aa993b | 11963 | { |
0d381245 | 11964 | int match = 0; |
4a64f543 | 11965 | /* Are we going to delete b? */ |
cc60f2e3 | 11966 | if (b->type != bp_none && !is_watchpoint (b)) |
0d381245 VP |
11967 | { |
11968 | struct bp_location *loc = b->loc; | |
11969 | for (; loc; loc = loc->next) | |
11970 | { | |
f8eba3c6 TT |
11971 | /* If the user specified file:line, don't allow a PC |
11972 | match. This matches historical gdb behavior. */ | |
11973 | int pc_match = (!sal.explicit_line | |
11974 | && sal.pc | |
11975 | && (loc->pspace == sal.pspace) | |
11976 | && (loc->address == sal.pc) | |
11977 | && (!section_is_overlay (loc->section) | |
11978 | || loc->section == sal.section)); | |
4aac40c8 TT |
11979 | int line_match = 0; |
11980 | ||
11981 | if ((default_match || sal.explicit_line) | |
2f202fde | 11982 | && loc->symtab != NULL |
05cba821 | 11983 | && sal_fullname != NULL |
4aac40c8 | 11984 | && sal.pspace == loc->pspace |
05cba821 JK |
11985 | && loc->line_number == sal.line |
11986 | && filename_cmp (symtab_to_fullname (loc->symtab), | |
11987 | sal_fullname) == 0) | |
11988 | line_match = 1; | |
4aac40c8 | 11989 | |
0d381245 VP |
11990 | if (pc_match || line_match) |
11991 | { | |
11992 | match = 1; | |
11993 | break; | |
11994 | } | |
11995 | } | |
11996 | } | |
11997 | ||
11998 | if (match) | |
d6e956e5 | 11999 | VEC_safe_push(breakpoint_p, found, b); |
c906108c | 12000 | } |
80f8a6eb | 12001 | } |
8a2c437b | 12002 | |
80f8a6eb | 12003 | /* Now go thru the 'found' chain and delete them. */ |
d6e956e5 | 12004 | if (VEC_empty(breakpoint_p, found)) |
80f8a6eb MS |
12005 | { |
12006 | if (arg) | |
8a3fe4f8 | 12007 | error (_("No breakpoint at %s."), arg); |
80f8a6eb | 12008 | else |
8a3fe4f8 | 12009 | error (_("No breakpoint at this line.")); |
80f8a6eb | 12010 | } |
c906108c | 12011 | |
8a2c437b TT |
12012 | /* Remove duplicates from the vec. */ |
12013 | qsort (VEC_address (breakpoint_p, found), | |
12014 | VEC_length (breakpoint_p, found), | |
12015 | sizeof (breakpoint_p), | |
12016 | compare_breakpoints); | |
12017 | prev = VEC_index (breakpoint_p, found, 0); | |
12018 | for (ix = 1; VEC_iterate (breakpoint_p, found, ix, b); ++ix) | |
12019 | { | |
12020 | if (b == prev) | |
12021 | { | |
12022 | VEC_ordered_remove (breakpoint_p, found, ix); | |
12023 | --ix; | |
12024 | } | |
12025 | } | |
12026 | ||
d6e956e5 | 12027 | if (VEC_length(breakpoint_p, found) > 1) |
4a64f543 | 12028 | from_tty = 1; /* Always report if deleted more than one. */ |
80f8a6eb | 12029 | if (from_tty) |
a3f17187 | 12030 | { |
d6e956e5 | 12031 | if (VEC_length(breakpoint_p, found) == 1) |
a3f17187 AC |
12032 | printf_unfiltered (_("Deleted breakpoint ")); |
12033 | else | |
12034 | printf_unfiltered (_("Deleted breakpoints ")); | |
12035 | } | |
d6e956e5 VP |
12036 | |
12037 | for (ix = 0; VEC_iterate(breakpoint_p, found, ix, b); ix++) | |
80f8a6eb | 12038 | { |
c5aa993b | 12039 | if (from_tty) |
d6e956e5 VP |
12040 | printf_unfiltered ("%d ", b->number); |
12041 | delete_breakpoint (b); | |
c906108c | 12042 | } |
80f8a6eb MS |
12043 | if (from_tty) |
12044 | putchar_unfiltered ('\n'); | |
8a2c437b TT |
12045 | |
12046 | do_cleanups (cleanups); | |
c906108c SS |
12047 | } |
12048 | \f | |
12049 | /* Delete breakpoint in BS if they are `delete' breakpoints and | |
12050 | all breakpoints that are marked for deletion, whether hit or not. | |
12051 | This is called after any breakpoint is hit, or after errors. */ | |
12052 | ||
12053 | void | |
fba45db2 | 12054 | breakpoint_auto_delete (bpstat bs) |
c906108c | 12055 | { |
35df4500 | 12056 | struct breakpoint *b, *b_tmp; |
c906108c SS |
12057 | |
12058 | for (; bs; bs = bs->next) | |
f431efe5 PA |
12059 | if (bs->breakpoint_at |
12060 | && bs->breakpoint_at->disposition == disp_del | |
c906108c | 12061 | && bs->stop) |
f431efe5 | 12062 | delete_breakpoint (bs->breakpoint_at); |
c906108c | 12063 | |
35df4500 | 12064 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 12065 | { |
b5de0fa7 | 12066 | if (b->disposition == disp_del_at_next_stop) |
c5aa993b JM |
12067 | delete_breakpoint (b); |
12068 | } | |
c906108c SS |
12069 | } |
12070 | ||
4a64f543 MS |
12071 | /* A comparison function for bp_location AP and BP being interfaced to |
12072 | qsort. Sort elements primarily by their ADDRESS (no matter what | |
12073 | does breakpoint_address_is_meaningful say for its OWNER), | |
1a853c52 | 12074 | secondarily by ordering first permanent elements and |
4a64f543 | 12075 | terciarily just ensuring the array is sorted stable way despite |
e5dd4106 | 12076 | qsort being an unstable algorithm. */ |
876fa593 JK |
12077 | |
12078 | static int | |
494cfb0f | 12079 | bp_location_compare (const void *ap, const void *bp) |
876fa593 | 12080 | { |
9a3c8263 SM |
12081 | const struct bp_location *a = *(const struct bp_location **) ap; |
12082 | const struct bp_location *b = *(const struct bp_location **) bp; | |
876fa593 JK |
12083 | |
12084 | if (a->address != b->address) | |
12085 | return (a->address > b->address) - (a->address < b->address); | |
12086 | ||
dea2aa5f LM |
12087 | /* Sort locations at the same address by their pspace number, keeping |
12088 | locations of the same inferior (in a multi-inferior environment) | |
12089 | grouped. */ | |
12090 | ||
12091 | if (a->pspace->num != b->pspace->num) | |
12092 | return ((a->pspace->num > b->pspace->num) | |
12093 | - (a->pspace->num < b->pspace->num)); | |
12094 | ||
876fa593 | 12095 | /* Sort permanent breakpoints first. */ |
1a853c52 PA |
12096 | if (a->permanent != b->permanent) |
12097 | return (a->permanent < b->permanent) - (a->permanent > b->permanent); | |
876fa593 | 12098 | |
c56a97f9 JK |
12099 | /* Make the internal GDB representation stable across GDB runs |
12100 | where A and B memory inside GDB can differ. Breakpoint locations of | |
12101 | the same type at the same address can be sorted in arbitrary order. */ | |
876fa593 JK |
12102 | |
12103 | if (a->owner->number != b->owner->number) | |
c56a97f9 JK |
12104 | return ((a->owner->number > b->owner->number) |
12105 | - (a->owner->number < b->owner->number)); | |
876fa593 JK |
12106 | |
12107 | return (a > b) - (a < b); | |
12108 | } | |
12109 | ||
876fa593 | 12110 | /* Set bp_location_placed_address_before_address_max and |
4a64f543 MS |
12111 | bp_location_shadow_len_after_address_max according to the current |
12112 | content of the bp_location array. */ | |
f7545552 TT |
12113 | |
12114 | static void | |
876fa593 | 12115 | bp_location_target_extensions_update (void) |
f7545552 | 12116 | { |
876fa593 JK |
12117 | struct bp_location *bl, **blp_tmp; |
12118 | ||
12119 | bp_location_placed_address_before_address_max = 0; | |
12120 | bp_location_shadow_len_after_address_max = 0; | |
12121 | ||
12122 | ALL_BP_LOCATIONS (bl, blp_tmp) | |
12123 | { | |
12124 | CORE_ADDR start, end, addr; | |
12125 | ||
12126 | if (!bp_location_has_shadow (bl)) | |
12127 | continue; | |
12128 | ||
12129 | start = bl->target_info.placed_address; | |
12130 | end = start + bl->target_info.shadow_len; | |
12131 | ||
12132 | gdb_assert (bl->address >= start); | |
12133 | addr = bl->address - start; | |
12134 | if (addr > bp_location_placed_address_before_address_max) | |
12135 | bp_location_placed_address_before_address_max = addr; | |
12136 | ||
12137 | /* Zero SHADOW_LEN would not pass bp_location_has_shadow. */ | |
12138 | ||
12139 | gdb_assert (bl->address < end); | |
12140 | addr = end - bl->address; | |
12141 | if (addr > bp_location_shadow_len_after_address_max) | |
12142 | bp_location_shadow_len_after_address_max = addr; | |
12143 | } | |
f7545552 TT |
12144 | } |
12145 | ||
1e4d1764 YQ |
12146 | /* Download tracepoint locations if they haven't been. */ |
12147 | ||
12148 | static void | |
12149 | download_tracepoint_locations (void) | |
12150 | { | |
7ed2c994 | 12151 | struct breakpoint *b; |
1e4d1764 | 12152 | struct cleanup *old_chain; |
dd2e65cc | 12153 | enum tribool can_download_tracepoint = TRIBOOL_UNKNOWN; |
1e4d1764 YQ |
12154 | |
12155 | old_chain = save_current_space_and_thread (); | |
12156 | ||
7ed2c994 | 12157 | ALL_TRACEPOINTS (b) |
1e4d1764 | 12158 | { |
7ed2c994 | 12159 | struct bp_location *bl; |
1e4d1764 | 12160 | struct tracepoint *t; |
f2a8bc8a | 12161 | int bp_location_downloaded = 0; |
1e4d1764 | 12162 | |
7ed2c994 | 12163 | if ((b->type == bp_fast_tracepoint |
1e4d1764 YQ |
12164 | ? !may_insert_fast_tracepoints |
12165 | : !may_insert_tracepoints)) | |
12166 | continue; | |
12167 | ||
dd2e65cc YQ |
12168 | if (can_download_tracepoint == TRIBOOL_UNKNOWN) |
12169 | { | |
12170 | if (target_can_download_tracepoint ()) | |
12171 | can_download_tracepoint = TRIBOOL_TRUE; | |
12172 | else | |
12173 | can_download_tracepoint = TRIBOOL_FALSE; | |
12174 | } | |
12175 | ||
12176 | if (can_download_tracepoint == TRIBOOL_FALSE) | |
12177 | break; | |
12178 | ||
7ed2c994 YQ |
12179 | for (bl = b->loc; bl; bl = bl->next) |
12180 | { | |
12181 | /* In tracepoint, locations are _never_ duplicated, so | |
12182 | should_be_inserted is equivalent to | |
12183 | unduplicated_should_be_inserted. */ | |
12184 | if (!should_be_inserted (bl) || bl->inserted) | |
12185 | continue; | |
1e4d1764 | 12186 | |
7ed2c994 | 12187 | switch_to_program_space_and_thread (bl->pspace); |
1e4d1764 | 12188 | |
7ed2c994 | 12189 | target_download_tracepoint (bl); |
1e4d1764 | 12190 | |
7ed2c994 | 12191 | bl->inserted = 1; |
f2a8bc8a | 12192 | bp_location_downloaded = 1; |
7ed2c994 YQ |
12193 | } |
12194 | t = (struct tracepoint *) b; | |
12195 | t->number_on_target = b->number; | |
f2a8bc8a YQ |
12196 | if (bp_location_downloaded) |
12197 | observer_notify_breakpoint_modified (b); | |
1e4d1764 YQ |
12198 | } |
12199 | ||
12200 | do_cleanups (old_chain); | |
12201 | } | |
12202 | ||
934709f0 PW |
12203 | /* Swap the insertion/duplication state between two locations. */ |
12204 | ||
12205 | static void | |
12206 | swap_insertion (struct bp_location *left, struct bp_location *right) | |
12207 | { | |
12208 | const int left_inserted = left->inserted; | |
12209 | const int left_duplicate = left->duplicate; | |
b775012e | 12210 | const int left_needs_update = left->needs_update; |
934709f0 PW |
12211 | const struct bp_target_info left_target_info = left->target_info; |
12212 | ||
1e4d1764 YQ |
12213 | /* Locations of tracepoints can never be duplicated. */ |
12214 | if (is_tracepoint (left->owner)) | |
12215 | gdb_assert (!left->duplicate); | |
12216 | if (is_tracepoint (right->owner)) | |
12217 | gdb_assert (!right->duplicate); | |
12218 | ||
934709f0 PW |
12219 | left->inserted = right->inserted; |
12220 | left->duplicate = right->duplicate; | |
b775012e | 12221 | left->needs_update = right->needs_update; |
934709f0 PW |
12222 | left->target_info = right->target_info; |
12223 | right->inserted = left_inserted; | |
12224 | right->duplicate = left_duplicate; | |
b775012e | 12225 | right->needs_update = left_needs_update; |
934709f0 PW |
12226 | right->target_info = left_target_info; |
12227 | } | |
12228 | ||
b775012e LM |
12229 | /* Force the re-insertion of the locations at ADDRESS. This is called |
12230 | once a new/deleted/modified duplicate location is found and we are evaluating | |
12231 | conditions on the target's side. Such conditions need to be updated on | |
12232 | the target. */ | |
12233 | ||
12234 | static void | |
12235 | force_breakpoint_reinsertion (struct bp_location *bl) | |
12236 | { | |
12237 | struct bp_location **locp = NULL, **loc2p; | |
12238 | struct bp_location *loc; | |
12239 | CORE_ADDR address = 0; | |
12240 | int pspace_num; | |
12241 | ||
12242 | address = bl->address; | |
12243 | pspace_num = bl->pspace->num; | |
12244 | ||
12245 | /* This is only meaningful if the target is | |
12246 | evaluating conditions and if the user has | |
12247 | opted for condition evaluation on the target's | |
12248 | side. */ | |
12249 | if (gdb_evaluates_breakpoint_condition_p () | |
12250 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
12251 | return; | |
12252 | ||
12253 | /* Flag all breakpoint locations with this address and | |
12254 | the same program space as the location | |
12255 | as "its condition has changed". We need to | |
12256 | update the conditions on the target's side. */ | |
12257 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, address) | |
12258 | { | |
12259 | loc = *loc2p; | |
12260 | ||
12261 | if (!is_breakpoint (loc->owner) | |
12262 | || pspace_num != loc->pspace->num) | |
12263 | continue; | |
12264 | ||
12265 | /* Flag the location appropriately. We use a different state to | |
12266 | let everyone know that we already updated the set of locations | |
12267 | with addr bl->address and program space bl->pspace. This is so | |
12268 | we don't have to keep calling these functions just to mark locations | |
12269 | that have already been marked. */ | |
12270 | loc->condition_changed = condition_updated; | |
12271 | ||
12272 | /* Free the agent expression bytecode as well. We will compute | |
12273 | it later on. */ | |
12274 | if (loc->cond_bytecode) | |
12275 | { | |
12276 | free_agent_expr (loc->cond_bytecode); | |
12277 | loc->cond_bytecode = NULL; | |
12278 | } | |
12279 | } | |
12280 | } | |
44702360 PA |
12281 | /* Called whether new breakpoints are created, or existing breakpoints |
12282 | deleted, to update the global location list and recompute which | |
12283 | locations are duplicate of which. | |
b775012e | 12284 | |
04086b45 PA |
12285 | The INSERT_MODE flag determines whether locations may not, may, or |
12286 | shall be inserted now. See 'enum ugll_insert_mode' for more | |
12287 | info. */ | |
b60e7edf | 12288 | |
0d381245 | 12289 | static void |
44702360 | 12290 | update_global_location_list (enum ugll_insert_mode insert_mode) |
0d381245 | 12291 | { |
74960c60 | 12292 | struct breakpoint *b; |
876fa593 | 12293 | struct bp_location **locp, *loc; |
f7545552 | 12294 | struct cleanup *cleanups; |
b775012e LM |
12295 | /* Last breakpoint location address that was marked for update. */ |
12296 | CORE_ADDR last_addr = 0; | |
12297 | /* Last breakpoint location program space that was marked for update. */ | |
12298 | int last_pspace_num = -1; | |
f7545552 | 12299 | |
2d134ed3 PA |
12300 | /* Used in the duplicates detection below. When iterating over all |
12301 | bp_locations, points to the first bp_location of a given address. | |
12302 | Breakpoints and watchpoints of different types are never | |
12303 | duplicates of each other. Keep one pointer for each type of | |
12304 | breakpoint/watchpoint, so we only need to loop over all locations | |
12305 | once. */ | |
12306 | struct bp_location *bp_loc_first; /* breakpoint */ | |
12307 | struct bp_location *wp_loc_first; /* hardware watchpoint */ | |
12308 | struct bp_location *awp_loc_first; /* access watchpoint */ | |
12309 | struct bp_location *rwp_loc_first; /* read watchpoint */ | |
876fa593 | 12310 | |
4a64f543 MS |
12311 | /* Saved former bp_location array which we compare against the newly |
12312 | built bp_location from the current state of ALL_BREAKPOINTS. */ | |
876fa593 JK |
12313 | struct bp_location **old_location, **old_locp; |
12314 | unsigned old_location_count; | |
12315 | ||
12316 | old_location = bp_location; | |
12317 | old_location_count = bp_location_count; | |
12318 | bp_location = NULL; | |
12319 | bp_location_count = 0; | |
12320 | cleanups = make_cleanup (xfree, old_location); | |
0d381245 | 12321 | |
74960c60 | 12322 | ALL_BREAKPOINTS (b) |
876fa593 JK |
12323 | for (loc = b->loc; loc; loc = loc->next) |
12324 | bp_location_count++; | |
12325 | ||
8d749320 | 12326 | bp_location = XNEWVEC (struct bp_location *, bp_location_count); |
876fa593 JK |
12327 | locp = bp_location; |
12328 | ALL_BREAKPOINTS (b) | |
12329 | for (loc = b->loc; loc; loc = loc->next) | |
12330 | *locp++ = loc; | |
12331 | qsort (bp_location, bp_location_count, sizeof (*bp_location), | |
494cfb0f | 12332 | bp_location_compare); |
876fa593 JK |
12333 | |
12334 | bp_location_target_extensions_update (); | |
74960c60 | 12335 | |
4a64f543 MS |
12336 | /* Identify bp_location instances that are no longer present in the |
12337 | new list, and therefore should be freed. Note that it's not | |
12338 | necessary that those locations should be removed from inferior -- | |
12339 | if there's another location at the same address (previously | |
12340 | marked as duplicate), we don't need to remove/insert the | |
12341 | location. | |
876fa593 | 12342 | |
4a64f543 MS |
12343 | LOCP is kept in sync with OLD_LOCP, each pointing to the current |
12344 | and former bp_location array state respectively. */ | |
876fa593 JK |
12345 | |
12346 | locp = bp_location; | |
12347 | for (old_locp = old_location; old_locp < old_location + old_location_count; | |
12348 | old_locp++) | |
74960c60 | 12349 | { |
876fa593 | 12350 | struct bp_location *old_loc = *old_locp; |
c7d46a38 | 12351 | struct bp_location **loc2p; |
876fa593 | 12352 | |
e5dd4106 | 12353 | /* Tells if 'old_loc' is found among the new locations. If |
4a64f543 | 12354 | not, we have to free it. */ |
c7d46a38 | 12355 | int found_object = 0; |
20874c92 VP |
12356 | /* Tells if the location should remain inserted in the target. */ |
12357 | int keep_in_target = 0; | |
12358 | int removed = 0; | |
876fa593 | 12359 | |
4a64f543 MS |
12360 | /* Skip LOCP entries which will definitely never be needed. |
12361 | Stop either at or being the one matching OLD_LOC. */ | |
876fa593 | 12362 | while (locp < bp_location + bp_location_count |
c7d46a38 | 12363 | && (*locp)->address < old_loc->address) |
876fa593 | 12364 | locp++; |
c7d46a38 PA |
12365 | |
12366 | for (loc2p = locp; | |
12367 | (loc2p < bp_location + bp_location_count | |
12368 | && (*loc2p)->address == old_loc->address); | |
12369 | loc2p++) | |
12370 | { | |
b775012e LM |
12371 | /* Check if this is a new/duplicated location or a duplicated |
12372 | location that had its condition modified. If so, we want to send | |
12373 | its condition to the target if evaluation of conditions is taking | |
12374 | place there. */ | |
12375 | if ((*loc2p)->condition_changed == condition_modified | |
12376 | && (last_addr != old_loc->address | |
12377 | || last_pspace_num != old_loc->pspace->num)) | |
c7d46a38 | 12378 | { |
b775012e LM |
12379 | force_breakpoint_reinsertion (*loc2p); |
12380 | last_pspace_num = old_loc->pspace->num; | |
c7d46a38 | 12381 | } |
b775012e LM |
12382 | |
12383 | if (*loc2p == old_loc) | |
12384 | found_object = 1; | |
c7d46a38 | 12385 | } |
74960c60 | 12386 | |
b775012e LM |
12387 | /* We have already handled this address, update it so that we don't |
12388 | have to go through updates again. */ | |
12389 | last_addr = old_loc->address; | |
12390 | ||
12391 | /* Target-side condition evaluation: Handle deleted locations. */ | |
12392 | if (!found_object) | |
12393 | force_breakpoint_reinsertion (old_loc); | |
12394 | ||
4a64f543 MS |
12395 | /* If this location is no longer present, and inserted, look if |
12396 | there's maybe a new location at the same address. If so, | |
12397 | mark that one inserted, and don't remove this one. This is | |
12398 | needed so that we don't have a time window where a breakpoint | |
12399 | at certain location is not inserted. */ | |
74960c60 | 12400 | |
876fa593 | 12401 | if (old_loc->inserted) |
0d381245 | 12402 | { |
4a64f543 MS |
12403 | /* If the location is inserted now, we might have to remove |
12404 | it. */ | |
74960c60 | 12405 | |
876fa593 | 12406 | if (found_object && should_be_inserted (old_loc)) |
74960c60 | 12407 | { |
4a64f543 MS |
12408 | /* The location is still present in the location list, |
12409 | and still should be inserted. Don't do anything. */ | |
20874c92 | 12410 | keep_in_target = 1; |
74960c60 VP |
12411 | } |
12412 | else | |
12413 | { | |
b775012e LM |
12414 | /* This location still exists, but it won't be kept in the |
12415 | target since it may have been disabled. We proceed to | |
12416 | remove its target-side condition. */ | |
12417 | ||
4a64f543 MS |
12418 | /* The location is either no longer present, or got |
12419 | disabled. See if there's another location at the | |
12420 | same address, in which case we don't need to remove | |
12421 | this one from the target. */ | |
876fa593 | 12422 | |
2bdf28a0 | 12423 | /* OLD_LOC comes from existing struct breakpoint. */ |
876fa593 JK |
12424 | if (breakpoint_address_is_meaningful (old_loc->owner)) |
12425 | { | |
876fa593 | 12426 | for (loc2p = locp; |
c7d46a38 PA |
12427 | (loc2p < bp_location + bp_location_count |
12428 | && (*loc2p)->address == old_loc->address); | |
876fa593 JK |
12429 | loc2p++) |
12430 | { | |
12431 | struct bp_location *loc2 = *loc2p; | |
12432 | ||
2d134ed3 | 12433 | if (breakpoint_locations_match (loc2, old_loc)) |
c7d46a38 | 12434 | { |
85d721b8 PA |
12435 | /* Read watchpoint locations are switched to |
12436 | access watchpoints, if the former are not | |
12437 | supported, but the latter are. */ | |
12438 | if (is_hardware_watchpoint (old_loc->owner)) | |
12439 | { | |
12440 | gdb_assert (is_hardware_watchpoint (loc2->owner)); | |
12441 | loc2->watchpoint_type = old_loc->watchpoint_type; | |
12442 | } | |
12443 | ||
934709f0 PW |
12444 | /* loc2 is a duplicated location. We need to check |
12445 | if it should be inserted in case it will be | |
12446 | unduplicated. */ | |
12447 | if (loc2 != old_loc | |
12448 | && unduplicated_should_be_inserted (loc2)) | |
c7d46a38 | 12449 | { |
934709f0 | 12450 | swap_insertion (old_loc, loc2); |
c7d46a38 PA |
12451 | keep_in_target = 1; |
12452 | break; | |
12453 | } | |
876fa593 JK |
12454 | } |
12455 | } | |
12456 | } | |
74960c60 VP |
12457 | } |
12458 | ||
20874c92 VP |
12459 | if (!keep_in_target) |
12460 | { | |
876fa593 | 12461 | if (remove_breakpoint (old_loc, mark_uninserted)) |
20874c92 | 12462 | { |
4a64f543 MS |
12463 | /* This is just about all we can do. We could keep |
12464 | this location on the global list, and try to | |
12465 | remove it next time, but there's no particular | |
12466 | reason why we will succeed next time. | |
20874c92 | 12467 | |
4a64f543 MS |
12468 | Note that at this point, old_loc->owner is still |
12469 | valid, as delete_breakpoint frees the breakpoint | |
12470 | only after calling us. */ | |
3e43a32a MS |
12471 | printf_filtered (_("warning: Error removing " |
12472 | "breakpoint %d\n"), | |
876fa593 | 12473 | old_loc->owner->number); |
20874c92 VP |
12474 | } |
12475 | removed = 1; | |
12476 | } | |
0d381245 | 12477 | } |
74960c60 VP |
12478 | |
12479 | if (!found_object) | |
1c5cfe86 | 12480 | { |
fbea99ea | 12481 | if (removed && target_is_non_stop_p () |
1cf4d951 | 12482 | && need_moribund_for_location_type (old_loc)) |
20874c92 | 12483 | { |
db82e815 PA |
12484 | /* This location was removed from the target. In |
12485 | non-stop mode, a race condition is possible where | |
12486 | we've removed a breakpoint, but stop events for that | |
12487 | breakpoint are already queued and will arrive later. | |
12488 | We apply an heuristic to be able to distinguish such | |
12489 | SIGTRAPs from other random SIGTRAPs: we keep this | |
12490 | breakpoint location for a bit, and will retire it | |
12491 | after we see some number of events. The theory here | |
12492 | is that reporting of events should, "on the average", | |
12493 | be fair, so after a while we'll see events from all | |
12494 | threads that have anything of interest, and no longer | |
12495 | need to keep this breakpoint location around. We | |
12496 | don't hold locations forever so to reduce chances of | |
12497 | mistaking a non-breakpoint SIGTRAP for a breakpoint | |
12498 | SIGTRAP. | |
12499 | ||
12500 | The heuristic failing can be disastrous on | |
12501 | decr_pc_after_break targets. | |
12502 | ||
12503 | On decr_pc_after_break targets, like e.g., x86-linux, | |
12504 | if we fail to recognize a late breakpoint SIGTRAP, | |
12505 | because events_till_retirement has reached 0 too | |
12506 | soon, we'll fail to do the PC adjustment, and report | |
12507 | a random SIGTRAP to the user. When the user resumes | |
12508 | the inferior, it will most likely immediately crash | |
2dec564e | 12509 | with SIGILL/SIGBUS/SIGSEGV, or worse, get silently |
db82e815 PA |
12510 | corrupted, because of being resumed e.g., in the |
12511 | middle of a multi-byte instruction, or skipped a | |
12512 | one-byte instruction. This was actually seen happen | |
12513 | on native x86-linux, and should be less rare on | |
12514 | targets that do not support new thread events, like | |
12515 | remote, due to the heuristic depending on | |
12516 | thread_count. | |
12517 | ||
12518 | Mistaking a random SIGTRAP for a breakpoint trap | |
12519 | causes similar symptoms (PC adjustment applied when | |
12520 | it shouldn't), but then again, playing with SIGTRAPs | |
12521 | behind the debugger's back is asking for trouble. | |
12522 | ||
12523 | Since hardware watchpoint traps are always | |
12524 | distinguishable from other traps, so we don't need to | |
12525 | apply keep hardware watchpoint moribund locations | |
12526 | around. We simply always ignore hardware watchpoint | |
12527 | traps we can no longer explain. */ | |
12528 | ||
876fa593 JK |
12529 | old_loc->events_till_retirement = 3 * (thread_count () + 1); |
12530 | old_loc->owner = NULL; | |
20874c92 | 12531 | |
876fa593 | 12532 | VEC_safe_push (bp_location_p, moribund_locations, old_loc); |
1c5cfe86 PA |
12533 | } |
12534 | else | |
f431efe5 PA |
12535 | { |
12536 | old_loc->owner = NULL; | |
12537 | decref_bp_location (&old_loc); | |
12538 | } | |
20874c92 | 12539 | } |
74960c60 | 12540 | } |
1c5cfe86 | 12541 | |
348d480f PA |
12542 | /* Rescan breakpoints at the same address and section, marking the |
12543 | first one as "first" and any others as "duplicates". This is so | |
12544 | that the bpt instruction is only inserted once. If we have a | |
12545 | permanent breakpoint at the same place as BPT, make that one the | |
12546 | official one, and the rest as duplicates. Permanent breakpoints | |
12547 | are sorted first for the same address. | |
12548 | ||
12549 | Do the same for hardware watchpoints, but also considering the | |
12550 | watchpoint's type (regular/access/read) and length. */ | |
12551 | ||
12552 | bp_loc_first = NULL; | |
12553 | wp_loc_first = NULL; | |
12554 | awp_loc_first = NULL; | |
12555 | rwp_loc_first = NULL; | |
12556 | ALL_BP_LOCATIONS (loc, locp) | |
12557 | { | |
12558 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always | |
12559 | non-NULL. */ | |
348d480f | 12560 | struct bp_location **loc_first_p; |
d3fbdd86 | 12561 | b = loc->owner; |
348d480f | 12562 | |
6f380991 | 12563 | if (!unduplicated_should_be_inserted (loc) |
348d480f | 12564 | || !breakpoint_address_is_meaningful (b) |
1e4d1764 YQ |
12565 | /* Don't detect duplicate for tracepoint locations because they are |
12566 | never duplicated. See the comments in field `duplicate' of | |
12567 | `struct bp_location'. */ | |
348d480f | 12568 | || is_tracepoint (b)) |
b775012e LM |
12569 | { |
12570 | /* Clear the condition modification flag. */ | |
12571 | loc->condition_changed = condition_unchanged; | |
12572 | continue; | |
12573 | } | |
348d480f | 12574 | |
348d480f PA |
12575 | if (b->type == bp_hardware_watchpoint) |
12576 | loc_first_p = &wp_loc_first; | |
12577 | else if (b->type == bp_read_watchpoint) | |
12578 | loc_first_p = &rwp_loc_first; | |
12579 | else if (b->type == bp_access_watchpoint) | |
12580 | loc_first_p = &awp_loc_first; | |
12581 | else | |
12582 | loc_first_p = &bp_loc_first; | |
12583 | ||
12584 | if (*loc_first_p == NULL | |
12585 | || (overlay_debugging && loc->section != (*loc_first_p)->section) | |
12586 | || !breakpoint_locations_match (loc, *loc_first_p)) | |
12587 | { | |
12588 | *loc_first_p = loc; | |
12589 | loc->duplicate = 0; | |
b775012e LM |
12590 | |
12591 | if (is_breakpoint (loc->owner) && loc->condition_changed) | |
12592 | { | |
12593 | loc->needs_update = 1; | |
12594 | /* Clear the condition modification flag. */ | |
12595 | loc->condition_changed = condition_unchanged; | |
12596 | } | |
348d480f PA |
12597 | continue; |
12598 | } | |
12599 | ||
934709f0 PW |
12600 | |
12601 | /* This and the above ensure the invariant that the first location | |
12602 | is not duplicated, and is the inserted one. | |
12603 | All following are marked as duplicated, and are not inserted. */ | |
12604 | if (loc->inserted) | |
12605 | swap_insertion (loc, *loc_first_p); | |
348d480f PA |
12606 | loc->duplicate = 1; |
12607 | ||
b775012e LM |
12608 | /* Clear the condition modification flag. */ |
12609 | loc->condition_changed = condition_unchanged; | |
348d480f PA |
12610 | } |
12611 | ||
a25a5a45 | 12612 | if (insert_mode == UGLL_INSERT || breakpoints_should_be_inserted_now ()) |
b775012e | 12613 | { |
04086b45 | 12614 | if (insert_mode != UGLL_DONT_INSERT) |
b775012e LM |
12615 | insert_breakpoint_locations (); |
12616 | else | |
12617 | { | |
44702360 PA |
12618 | /* Even though the caller told us to not insert new |
12619 | locations, we may still need to update conditions on the | |
12620 | target's side of breakpoints that were already inserted | |
12621 | if the target is evaluating breakpoint conditions. We | |
b775012e LM |
12622 | only update conditions for locations that are marked |
12623 | "needs_update". */ | |
12624 | update_inserted_breakpoint_locations (); | |
12625 | } | |
12626 | } | |
348d480f | 12627 | |
04086b45 | 12628 | if (insert_mode != UGLL_DONT_INSERT) |
1e4d1764 YQ |
12629 | download_tracepoint_locations (); |
12630 | ||
348d480f PA |
12631 | do_cleanups (cleanups); |
12632 | } | |
12633 | ||
12634 | void | |
12635 | breakpoint_retire_moribund (void) | |
12636 | { | |
12637 | struct bp_location *loc; | |
12638 | int ix; | |
12639 | ||
12640 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix) | |
12641 | if (--(loc->events_till_retirement) == 0) | |
12642 | { | |
12643 | decref_bp_location (&loc); | |
12644 | VEC_unordered_remove (bp_location_p, moribund_locations, ix); | |
12645 | --ix; | |
12646 | } | |
12647 | } | |
12648 | ||
12649 | static void | |
44702360 | 12650 | update_global_location_list_nothrow (enum ugll_insert_mode insert_mode) |
348d480f | 12651 | { |
348d480f | 12652 | |
492d29ea PA |
12653 | TRY |
12654 | { | |
12655 | update_global_location_list (insert_mode); | |
12656 | } | |
12657 | CATCH (e, RETURN_MASK_ERROR) | |
12658 | { | |
12659 | } | |
12660 | END_CATCH | |
348d480f PA |
12661 | } |
12662 | ||
12663 | /* Clear BKP from a BPS. */ | |
12664 | ||
12665 | static void | |
12666 | bpstat_remove_bp_location (bpstat bps, struct breakpoint *bpt) | |
12667 | { | |
12668 | bpstat bs; | |
12669 | ||
12670 | for (bs = bps; bs; bs = bs->next) | |
12671 | if (bs->breakpoint_at == bpt) | |
12672 | { | |
12673 | bs->breakpoint_at = NULL; | |
12674 | bs->old_val = NULL; | |
12675 | /* bs->commands will be freed later. */ | |
12676 | } | |
12677 | } | |
12678 | ||
12679 | /* Callback for iterate_over_threads. */ | |
12680 | static int | |
12681 | bpstat_remove_breakpoint_callback (struct thread_info *th, void *data) | |
12682 | { | |
9a3c8263 | 12683 | struct breakpoint *bpt = (struct breakpoint *) data; |
348d480f PA |
12684 | |
12685 | bpstat_remove_bp_location (th->control.stop_bpstat, bpt); | |
12686 | return 0; | |
12687 | } | |
12688 | ||
12689 | /* Helper for breakpoint and tracepoint breakpoint_ops->mention | |
12690 | callbacks. */ | |
12691 | ||
12692 | static void | |
12693 | say_where (struct breakpoint *b) | |
12694 | { | |
12695 | struct value_print_options opts; | |
12696 | ||
12697 | get_user_print_options (&opts); | |
12698 | ||
12699 | /* i18n: cagney/2005-02-11: Below needs to be merged into a | |
12700 | single string. */ | |
12701 | if (b->loc == NULL) | |
12702 | { | |
f00aae0f KS |
12703 | /* For pending locations, the output differs slightly based |
12704 | on b->extra_string. If this is non-NULL, it contains either | |
12705 | a condition or dprintf arguments. */ | |
12706 | if (b->extra_string == NULL) | |
12707 | { | |
12708 | printf_filtered (_(" (%s) pending."), | |
12709 | event_location_to_string (b->location)); | |
12710 | } | |
12711 | else if (b->type == bp_dprintf) | |
12712 | { | |
12713 | printf_filtered (_(" (%s,%s) pending."), | |
12714 | event_location_to_string (b->location), | |
12715 | b->extra_string); | |
12716 | } | |
12717 | else | |
12718 | { | |
12719 | printf_filtered (_(" (%s %s) pending."), | |
12720 | event_location_to_string (b->location), | |
12721 | b->extra_string); | |
12722 | } | |
348d480f PA |
12723 | } |
12724 | else | |
12725 | { | |
2f202fde | 12726 | if (opts.addressprint || b->loc->symtab == NULL) |
348d480f PA |
12727 | { |
12728 | printf_filtered (" at "); | |
12729 | fputs_filtered (paddress (b->loc->gdbarch, b->loc->address), | |
12730 | gdb_stdout); | |
12731 | } | |
2f202fde | 12732 | if (b->loc->symtab != NULL) |
f8eba3c6 TT |
12733 | { |
12734 | /* If there is a single location, we can print the location | |
12735 | more nicely. */ | |
12736 | if (b->loc->next == NULL) | |
12737 | printf_filtered (": file %s, line %d.", | |
05cba821 JK |
12738 | symtab_to_filename_for_display (b->loc->symtab), |
12739 | b->loc->line_number); | |
f8eba3c6 TT |
12740 | else |
12741 | /* This is not ideal, but each location may have a | |
12742 | different file name, and this at least reflects the | |
12743 | real situation somewhat. */ | |
f00aae0f KS |
12744 | printf_filtered (": %s.", |
12745 | event_location_to_string (b->location)); | |
f8eba3c6 | 12746 | } |
348d480f PA |
12747 | |
12748 | if (b->loc->next) | |
12749 | { | |
12750 | struct bp_location *loc = b->loc; | |
12751 | int n = 0; | |
12752 | for (; loc; loc = loc->next) | |
12753 | ++n; | |
12754 | printf_filtered (" (%d locations)", n); | |
12755 | } | |
12756 | } | |
12757 | } | |
12758 | ||
348d480f PA |
12759 | /* Default bp_location_ops methods. */ |
12760 | ||
12761 | static void | |
12762 | bp_location_dtor (struct bp_location *self) | |
12763 | { | |
12764 | xfree (self->cond); | |
b775012e LM |
12765 | if (self->cond_bytecode) |
12766 | free_agent_expr (self->cond_bytecode); | |
348d480f | 12767 | xfree (self->function_name); |
8b4f3082 PA |
12768 | |
12769 | VEC_free (agent_expr_p, self->target_info.conditions); | |
12770 | VEC_free (agent_expr_p, self->target_info.tcommands); | |
348d480f PA |
12771 | } |
12772 | ||
12773 | static const struct bp_location_ops bp_location_ops = | |
12774 | { | |
12775 | bp_location_dtor | |
12776 | }; | |
12777 | ||
2060206e PA |
12778 | /* Default breakpoint_ops methods all breakpoint_ops ultimately |
12779 | inherit from. */ | |
348d480f | 12780 | |
2060206e PA |
12781 | static void |
12782 | base_breakpoint_dtor (struct breakpoint *self) | |
348d480f PA |
12783 | { |
12784 | decref_counted_command_line (&self->commands); | |
12785 | xfree (self->cond_string); | |
fb81d016 | 12786 | xfree (self->extra_string); |
f8eba3c6 | 12787 | xfree (self->filter); |
f00aae0f KS |
12788 | delete_event_location (self->location); |
12789 | delete_event_location (self->location_range_end); | |
348d480f PA |
12790 | } |
12791 | ||
2060206e PA |
12792 | static struct bp_location * |
12793 | base_breakpoint_allocate_location (struct breakpoint *self) | |
348d480f PA |
12794 | { |
12795 | struct bp_location *loc; | |
12796 | ||
12797 | loc = XNEW (struct bp_location); | |
12798 | init_bp_location (loc, &bp_location_ops, self); | |
12799 | return loc; | |
12800 | } | |
12801 | ||
2060206e PA |
12802 | static void |
12803 | base_breakpoint_re_set (struct breakpoint *b) | |
12804 | { | |
12805 | /* Nothing to re-set. */ | |
12806 | } | |
12807 | ||
12808 | #define internal_error_pure_virtual_called() \ | |
12809 | gdb_assert_not_reached ("pure virtual function called") | |
12810 | ||
12811 | static int | |
12812 | base_breakpoint_insert_location (struct bp_location *bl) | |
12813 | { | |
12814 | internal_error_pure_virtual_called (); | |
12815 | } | |
12816 | ||
12817 | static int | |
12818 | base_breakpoint_remove_location (struct bp_location *bl) | |
12819 | { | |
12820 | internal_error_pure_virtual_called (); | |
12821 | } | |
12822 | ||
12823 | static int | |
12824 | base_breakpoint_breakpoint_hit (const struct bp_location *bl, | |
12825 | struct address_space *aspace, | |
09ac7c10 TT |
12826 | CORE_ADDR bp_addr, |
12827 | const struct target_waitstatus *ws) | |
2060206e PA |
12828 | { |
12829 | internal_error_pure_virtual_called (); | |
12830 | } | |
12831 | ||
12832 | static void | |
12833 | base_breakpoint_check_status (bpstat bs) | |
12834 | { | |
12835 | /* Always stop. */ | |
12836 | } | |
12837 | ||
12838 | /* A "works_in_software_mode" breakpoint_ops method that just internal | |
12839 | errors. */ | |
12840 | ||
12841 | static int | |
12842 | base_breakpoint_works_in_software_mode (const struct breakpoint *b) | |
12843 | { | |
12844 | internal_error_pure_virtual_called (); | |
12845 | } | |
12846 | ||
12847 | /* A "resources_needed" breakpoint_ops method that just internal | |
12848 | errors. */ | |
12849 | ||
12850 | static int | |
12851 | base_breakpoint_resources_needed (const struct bp_location *bl) | |
12852 | { | |
12853 | internal_error_pure_virtual_called (); | |
12854 | } | |
12855 | ||
12856 | static enum print_stop_action | |
12857 | base_breakpoint_print_it (bpstat bs) | |
12858 | { | |
12859 | internal_error_pure_virtual_called (); | |
12860 | } | |
12861 | ||
12862 | static void | |
12863 | base_breakpoint_print_one_detail (const struct breakpoint *self, | |
12864 | struct ui_out *uiout) | |
12865 | { | |
12866 | /* nothing */ | |
12867 | } | |
12868 | ||
12869 | static void | |
12870 | base_breakpoint_print_mention (struct breakpoint *b) | |
12871 | { | |
12872 | internal_error_pure_virtual_called (); | |
12873 | } | |
12874 | ||
12875 | static void | |
12876 | base_breakpoint_print_recreate (struct breakpoint *b, struct ui_file *fp) | |
12877 | { | |
12878 | internal_error_pure_virtual_called (); | |
12879 | } | |
12880 | ||
983af33b | 12881 | static void |
f00aae0f KS |
12882 | base_breakpoint_create_sals_from_location |
12883 | (const struct event_location *location, | |
12884 | struct linespec_result *canonical, | |
12885 | enum bptype type_wanted) | |
983af33b SDJ |
12886 | { |
12887 | internal_error_pure_virtual_called (); | |
12888 | } | |
12889 | ||
12890 | static void | |
12891 | base_breakpoint_create_breakpoints_sal (struct gdbarch *gdbarch, | |
12892 | struct linespec_result *c, | |
983af33b | 12893 | char *cond_string, |
e7e0cddf | 12894 | char *extra_string, |
983af33b SDJ |
12895 | enum bptype type_wanted, |
12896 | enum bpdisp disposition, | |
12897 | int thread, | |
12898 | int task, int ignore_count, | |
12899 | const struct breakpoint_ops *o, | |
12900 | int from_tty, int enabled, | |
44f238bb | 12901 | int internal, unsigned flags) |
983af33b SDJ |
12902 | { |
12903 | internal_error_pure_virtual_called (); | |
12904 | } | |
12905 | ||
12906 | static void | |
f00aae0f KS |
12907 | base_breakpoint_decode_location (struct breakpoint *b, |
12908 | const struct event_location *location, | |
983af33b SDJ |
12909 | struct symtabs_and_lines *sals) |
12910 | { | |
12911 | internal_error_pure_virtual_called (); | |
12912 | } | |
12913 | ||
ab04a2af TT |
12914 | /* The default 'explains_signal' method. */ |
12915 | ||
47591c29 | 12916 | static int |
427cd150 | 12917 | base_breakpoint_explains_signal (struct breakpoint *b, enum gdb_signal sig) |
ab04a2af | 12918 | { |
47591c29 | 12919 | return 1; |
ab04a2af TT |
12920 | } |
12921 | ||
9d6e6e84 HZ |
12922 | /* The default "after_condition_true" method. */ |
12923 | ||
12924 | static void | |
12925 | base_breakpoint_after_condition_true (struct bpstats *bs) | |
12926 | { | |
12927 | /* Nothing to do. */ | |
12928 | } | |
12929 | ||
ab04a2af | 12930 | struct breakpoint_ops base_breakpoint_ops = |
2060206e PA |
12931 | { |
12932 | base_breakpoint_dtor, | |
12933 | base_breakpoint_allocate_location, | |
12934 | base_breakpoint_re_set, | |
12935 | base_breakpoint_insert_location, | |
12936 | base_breakpoint_remove_location, | |
12937 | base_breakpoint_breakpoint_hit, | |
12938 | base_breakpoint_check_status, | |
12939 | base_breakpoint_resources_needed, | |
12940 | base_breakpoint_works_in_software_mode, | |
12941 | base_breakpoint_print_it, | |
12942 | NULL, | |
12943 | base_breakpoint_print_one_detail, | |
12944 | base_breakpoint_print_mention, | |
983af33b | 12945 | base_breakpoint_print_recreate, |
5f700d83 | 12946 | base_breakpoint_create_sals_from_location, |
983af33b | 12947 | base_breakpoint_create_breakpoints_sal, |
5f700d83 | 12948 | base_breakpoint_decode_location, |
9d6e6e84 HZ |
12949 | base_breakpoint_explains_signal, |
12950 | base_breakpoint_after_condition_true, | |
2060206e PA |
12951 | }; |
12952 | ||
12953 | /* Default breakpoint_ops methods. */ | |
12954 | ||
12955 | static void | |
348d480f PA |
12956 | bkpt_re_set (struct breakpoint *b) |
12957 | { | |
06edf0c0 | 12958 | /* FIXME: is this still reachable? */ |
f00aae0f | 12959 | if (event_location_empty_p (b->location)) |
06edf0c0 | 12960 | { |
f00aae0f | 12961 | /* Anything without a location can't be re-set. */ |
348d480f | 12962 | delete_breakpoint (b); |
06edf0c0 | 12963 | return; |
348d480f | 12964 | } |
06edf0c0 PA |
12965 | |
12966 | breakpoint_re_set_default (b); | |
348d480f PA |
12967 | } |
12968 | ||
2060206e | 12969 | static int |
348d480f PA |
12970 | bkpt_insert_location (struct bp_location *bl) |
12971 | { | |
12972 | if (bl->loc_type == bp_loc_hardware_breakpoint) | |
7c16b83e | 12973 | return target_insert_hw_breakpoint (bl->gdbarch, &bl->target_info); |
348d480f | 12974 | else |
7c16b83e | 12975 | return target_insert_breakpoint (bl->gdbarch, &bl->target_info); |
348d480f PA |
12976 | } |
12977 | ||
2060206e | 12978 | static int |
348d480f PA |
12979 | bkpt_remove_location (struct bp_location *bl) |
12980 | { | |
12981 | if (bl->loc_type == bp_loc_hardware_breakpoint) | |
12982 | return target_remove_hw_breakpoint (bl->gdbarch, &bl->target_info); | |
12983 | else | |
7c16b83e | 12984 | return target_remove_breakpoint (bl->gdbarch, &bl->target_info); |
348d480f PA |
12985 | } |
12986 | ||
2060206e | 12987 | static int |
348d480f | 12988 | bkpt_breakpoint_hit (const struct bp_location *bl, |
09ac7c10 TT |
12989 | struct address_space *aspace, CORE_ADDR bp_addr, |
12990 | const struct target_waitstatus *ws) | |
348d480f | 12991 | { |
09ac7c10 | 12992 | if (ws->kind != TARGET_WAITKIND_STOPPED |
a493e3e2 | 12993 | || ws->value.sig != GDB_SIGNAL_TRAP) |
09ac7c10 TT |
12994 | return 0; |
12995 | ||
348d480f PA |
12996 | if (!breakpoint_address_match (bl->pspace->aspace, bl->address, |
12997 | aspace, bp_addr)) | |
12998 | return 0; | |
12999 | ||
13000 | if (overlay_debugging /* unmapped overlay section */ | |
13001 | && section_is_overlay (bl->section) | |
13002 | && !section_is_mapped (bl->section)) | |
13003 | return 0; | |
13004 | ||
13005 | return 1; | |
13006 | } | |
13007 | ||
cd1608cc PA |
13008 | static int |
13009 | dprintf_breakpoint_hit (const struct bp_location *bl, | |
13010 | struct address_space *aspace, CORE_ADDR bp_addr, | |
13011 | const struct target_waitstatus *ws) | |
13012 | { | |
13013 | if (dprintf_style == dprintf_style_agent | |
13014 | && target_can_run_breakpoint_commands ()) | |
13015 | { | |
13016 | /* An agent-style dprintf never causes a stop. If we see a trap | |
13017 | for this address it must be for a breakpoint that happens to | |
13018 | be set at the same address. */ | |
13019 | return 0; | |
13020 | } | |
13021 | ||
13022 | return bkpt_breakpoint_hit (bl, aspace, bp_addr, ws); | |
13023 | } | |
13024 | ||
2060206e | 13025 | static int |
348d480f PA |
13026 | bkpt_resources_needed (const struct bp_location *bl) |
13027 | { | |
13028 | gdb_assert (bl->owner->type == bp_hardware_breakpoint); | |
13029 | ||
13030 | return 1; | |
13031 | } | |
13032 | ||
2060206e | 13033 | static enum print_stop_action |
348d480f PA |
13034 | bkpt_print_it (bpstat bs) |
13035 | { | |
348d480f PA |
13036 | struct breakpoint *b; |
13037 | const struct bp_location *bl; | |
001c8c33 | 13038 | int bp_temp; |
79a45e25 | 13039 | struct ui_out *uiout = current_uiout; |
348d480f PA |
13040 | |
13041 | gdb_assert (bs->bp_location_at != NULL); | |
13042 | ||
13043 | bl = bs->bp_location_at; | |
13044 | b = bs->breakpoint_at; | |
13045 | ||
001c8c33 PA |
13046 | bp_temp = b->disposition == disp_del; |
13047 | if (bl->address != bl->requested_address) | |
13048 | breakpoint_adjustment_warning (bl->requested_address, | |
13049 | bl->address, | |
13050 | b->number, 1); | |
13051 | annotate_breakpoint (b->number); | |
13052 | if (bp_temp) | |
13053 | ui_out_text (uiout, "\nTemporary breakpoint "); | |
13054 | else | |
13055 | ui_out_text (uiout, "\nBreakpoint "); | |
13056 | if (ui_out_is_mi_like_p (uiout)) | |
348d480f | 13057 | { |
001c8c33 PA |
13058 | ui_out_field_string (uiout, "reason", |
13059 | async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT)); | |
13060 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
06edf0c0 | 13061 | } |
001c8c33 PA |
13062 | ui_out_field_int (uiout, "bkptno", b->number); |
13063 | ui_out_text (uiout, ", "); | |
06edf0c0 | 13064 | |
001c8c33 | 13065 | return PRINT_SRC_AND_LOC; |
06edf0c0 PA |
13066 | } |
13067 | ||
2060206e | 13068 | static void |
06edf0c0 PA |
13069 | bkpt_print_mention (struct breakpoint *b) |
13070 | { | |
79a45e25 | 13071 | if (ui_out_is_mi_like_p (current_uiout)) |
06edf0c0 PA |
13072 | return; |
13073 | ||
13074 | switch (b->type) | |
13075 | { | |
13076 | case bp_breakpoint: | |
13077 | case bp_gnu_ifunc_resolver: | |
13078 | if (b->disposition == disp_del) | |
13079 | printf_filtered (_("Temporary breakpoint")); | |
13080 | else | |
13081 | printf_filtered (_("Breakpoint")); | |
13082 | printf_filtered (_(" %d"), b->number); | |
13083 | if (b->type == bp_gnu_ifunc_resolver) | |
13084 | printf_filtered (_(" at gnu-indirect-function resolver")); | |
13085 | break; | |
13086 | case bp_hardware_breakpoint: | |
13087 | printf_filtered (_("Hardware assisted breakpoint %d"), b->number); | |
13088 | break; | |
e7e0cddf SS |
13089 | case bp_dprintf: |
13090 | printf_filtered (_("Dprintf %d"), b->number); | |
13091 | break; | |
06edf0c0 PA |
13092 | } |
13093 | ||
13094 | say_where (b); | |
13095 | } | |
13096 | ||
2060206e | 13097 | static void |
06edf0c0 PA |
13098 | bkpt_print_recreate (struct breakpoint *tp, struct ui_file *fp) |
13099 | { | |
13100 | if (tp->type == bp_breakpoint && tp->disposition == disp_del) | |
13101 | fprintf_unfiltered (fp, "tbreak"); | |
13102 | else if (tp->type == bp_breakpoint) | |
13103 | fprintf_unfiltered (fp, "break"); | |
13104 | else if (tp->type == bp_hardware_breakpoint | |
13105 | && tp->disposition == disp_del) | |
13106 | fprintf_unfiltered (fp, "thbreak"); | |
13107 | else if (tp->type == bp_hardware_breakpoint) | |
13108 | fprintf_unfiltered (fp, "hbreak"); | |
13109 | else | |
13110 | internal_error (__FILE__, __LINE__, | |
13111 | _("unhandled breakpoint type %d"), (int) tp->type); | |
13112 | ||
f00aae0f KS |
13113 | fprintf_unfiltered (fp, " %s", |
13114 | event_location_to_string (tp->location)); | |
13115 | ||
13116 | /* Print out extra_string if this breakpoint is pending. It might | |
13117 | contain, for example, conditions that were set by the user. */ | |
13118 | if (tp->loc == NULL && tp->extra_string != NULL) | |
13119 | fprintf_unfiltered (fp, " %s", tp->extra_string); | |
13120 | ||
dd11a36c | 13121 | print_recreate_thread (tp, fp); |
06edf0c0 PA |
13122 | } |
13123 | ||
983af33b | 13124 | static void |
f00aae0f KS |
13125 | bkpt_create_sals_from_location (const struct event_location *location, |
13126 | struct linespec_result *canonical, | |
13127 | enum bptype type_wanted) | |
983af33b | 13128 | { |
f00aae0f | 13129 | create_sals_from_location_default (location, canonical, type_wanted); |
983af33b SDJ |
13130 | } |
13131 | ||
13132 | static void | |
13133 | bkpt_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13134 | struct linespec_result *canonical, | |
983af33b | 13135 | char *cond_string, |
e7e0cddf | 13136 | char *extra_string, |
983af33b SDJ |
13137 | enum bptype type_wanted, |
13138 | enum bpdisp disposition, | |
13139 | int thread, | |
13140 | int task, int ignore_count, | |
13141 | const struct breakpoint_ops *ops, | |
13142 | int from_tty, int enabled, | |
44f238bb | 13143 | int internal, unsigned flags) |
983af33b | 13144 | { |
023fa29b | 13145 | create_breakpoints_sal_default (gdbarch, canonical, |
e7e0cddf SS |
13146 | cond_string, extra_string, |
13147 | type_wanted, | |
983af33b SDJ |
13148 | disposition, thread, task, |
13149 | ignore_count, ops, from_tty, | |
44f238bb | 13150 | enabled, internal, flags); |
983af33b SDJ |
13151 | } |
13152 | ||
13153 | static void | |
f00aae0f KS |
13154 | bkpt_decode_location (struct breakpoint *b, |
13155 | const struct event_location *location, | |
983af33b SDJ |
13156 | struct symtabs_and_lines *sals) |
13157 | { | |
f00aae0f | 13158 | decode_location_default (b, location, sals); |
983af33b SDJ |
13159 | } |
13160 | ||
06edf0c0 PA |
13161 | /* Virtual table for internal breakpoints. */ |
13162 | ||
13163 | static void | |
13164 | internal_bkpt_re_set (struct breakpoint *b) | |
13165 | { | |
13166 | switch (b->type) | |
13167 | { | |
13168 | /* Delete overlay event and longjmp master breakpoints; they | |
13169 | will be reset later by breakpoint_re_set. */ | |
13170 | case bp_overlay_event: | |
13171 | case bp_longjmp_master: | |
13172 | case bp_std_terminate_master: | |
13173 | case bp_exception_master: | |
13174 | delete_breakpoint (b); | |
13175 | break; | |
13176 | ||
13177 | /* This breakpoint is special, it's set up when the inferior | |
13178 | starts and we really don't want to touch it. */ | |
13179 | case bp_shlib_event: | |
13180 | ||
13181 | /* Like bp_shlib_event, this breakpoint type is special. Once | |
13182 | it is set up, we do not want to touch it. */ | |
13183 | case bp_thread_event: | |
13184 | break; | |
13185 | } | |
13186 | } | |
13187 | ||
13188 | static void | |
13189 | internal_bkpt_check_status (bpstat bs) | |
13190 | { | |
a9b3a50f PA |
13191 | if (bs->breakpoint_at->type == bp_shlib_event) |
13192 | { | |
13193 | /* If requested, stop when the dynamic linker notifies GDB of | |
13194 | events. This allows the user to get control and place | |
13195 | breakpoints in initializer routines for dynamically loaded | |
13196 | objects (among other things). */ | |
13197 | bs->stop = stop_on_solib_events; | |
13198 | bs->print = stop_on_solib_events; | |
13199 | } | |
13200 | else | |
13201 | bs->stop = 0; | |
06edf0c0 PA |
13202 | } |
13203 | ||
13204 | static enum print_stop_action | |
13205 | internal_bkpt_print_it (bpstat bs) | |
13206 | { | |
06edf0c0 | 13207 | struct breakpoint *b; |
06edf0c0 | 13208 | |
06edf0c0 PA |
13209 | b = bs->breakpoint_at; |
13210 | ||
06edf0c0 PA |
13211 | switch (b->type) |
13212 | { | |
348d480f PA |
13213 | case bp_shlib_event: |
13214 | /* Did we stop because the user set the stop_on_solib_events | |
13215 | variable? (If so, we report this as a generic, "Stopped due | |
13216 | to shlib event" message.) */ | |
edcc5120 | 13217 | print_solib_event (0); |
348d480f PA |
13218 | break; |
13219 | ||
13220 | case bp_thread_event: | |
13221 | /* Not sure how we will get here. | |
13222 | GDB should not stop for these breakpoints. */ | |
13223 | printf_filtered (_("Thread Event Breakpoint: gdb should not stop!\n")); | |
348d480f PA |
13224 | break; |
13225 | ||
13226 | case bp_overlay_event: | |
13227 | /* By analogy with the thread event, GDB should not stop for these. */ | |
13228 | printf_filtered (_("Overlay Event Breakpoint: gdb should not stop!\n")); | |
348d480f PA |
13229 | break; |
13230 | ||
13231 | case bp_longjmp_master: | |
13232 | /* These should never be enabled. */ | |
13233 | printf_filtered (_("Longjmp Master Breakpoint: gdb should not stop!\n")); | |
348d480f PA |
13234 | break; |
13235 | ||
13236 | case bp_std_terminate_master: | |
13237 | /* These should never be enabled. */ | |
13238 | printf_filtered (_("std::terminate Master Breakpoint: " | |
13239 | "gdb should not stop!\n")); | |
348d480f PA |
13240 | break; |
13241 | ||
13242 | case bp_exception_master: | |
13243 | /* These should never be enabled. */ | |
13244 | printf_filtered (_("Exception Master Breakpoint: " | |
13245 | "gdb should not stop!\n")); | |
06edf0c0 PA |
13246 | break; |
13247 | } | |
13248 | ||
001c8c33 | 13249 | return PRINT_NOTHING; |
06edf0c0 PA |
13250 | } |
13251 | ||
13252 | static void | |
13253 | internal_bkpt_print_mention (struct breakpoint *b) | |
13254 | { | |
13255 | /* Nothing to mention. These breakpoints are internal. */ | |
13256 | } | |
13257 | ||
06edf0c0 PA |
13258 | /* Virtual table for momentary breakpoints */ |
13259 | ||
13260 | static void | |
13261 | momentary_bkpt_re_set (struct breakpoint *b) | |
13262 | { | |
13263 | /* Keep temporary breakpoints, which can be encountered when we step | |
4d1eb6b4 | 13264 | over a dlopen call and solib_add is resetting the breakpoints. |
06edf0c0 PA |
13265 | Otherwise these should have been blown away via the cleanup chain |
13266 | or by breakpoint_init_inferior when we rerun the executable. */ | |
13267 | } | |
13268 | ||
13269 | static void | |
13270 | momentary_bkpt_check_status (bpstat bs) | |
13271 | { | |
13272 | /* Nothing. The point of these breakpoints is causing a stop. */ | |
13273 | } | |
13274 | ||
13275 | static enum print_stop_action | |
13276 | momentary_bkpt_print_it (bpstat bs) | |
13277 | { | |
001c8c33 | 13278 | return PRINT_UNKNOWN; |
348d480f PA |
13279 | } |
13280 | ||
06edf0c0 PA |
13281 | static void |
13282 | momentary_bkpt_print_mention (struct breakpoint *b) | |
348d480f | 13283 | { |
06edf0c0 | 13284 | /* Nothing to mention. These breakpoints are internal. */ |
348d480f PA |
13285 | } |
13286 | ||
e2e4d78b JK |
13287 | /* Ensure INITIATING_FRAME is cleared when no such breakpoint exists. |
13288 | ||
13289 | It gets cleared already on the removal of the first one of such placed | |
13290 | breakpoints. This is OK as they get all removed altogether. */ | |
13291 | ||
13292 | static void | |
13293 | longjmp_bkpt_dtor (struct breakpoint *self) | |
13294 | { | |
13295 | struct thread_info *tp = find_thread_id (self->thread); | |
13296 | ||
13297 | if (tp) | |
13298 | tp->initiating_frame = null_frame_id; | |
13299 | ||
13300 | momentary_breakpoint_ops.dtor (self); | |
13301 | } | |
13302 | ||
55aa24fb SDJ |
13303 | /* Specific methods for probe breakpoints. */ |
13304 | ||
13305 | static int | |
13306 | bkpt_probe_insert_location (struct bp_location *bl) | |
13307 | { | |
13308 | int v = bkpt_insert_location (bl); | |
13309 | ||
13310 | if (v == 0) | |
13311 | { | |
13312 | /* The insertion was successful, now let's set the probe's semaphore | |
13313 | if needed. */ | |
0ea5cda8 SDJ |
13314 | if (bl->probe.probe->pops->set_semaphore != NULL) |
13315 | bl->probe.probe->pops->set_semaphore (bl->probe.probe, | |
13316 | bl->probe.objfile, | |
13317 | bl->gdbarch); | |
55aa24fb SDJ |
13318 | } |
13319 | ||
13320 | return v; | |
13321 | } | |
13322 | ||
13323 | static int | |
13324 | bkpt_probe_remove_location (struct bp_location *bl) | |
13325 | { | |
13326 | /* Let's clear the semaphore before removing the location. */ | |
0ea5cda8 SDJ |
13327 | if (bl->probe.probe->pops->clear_semaphore != NULL) |
13328 | bl->probe.probe->pops->clear_semaphore (bl->probe.probe, | |
13329 | bl->probe.objfile, | |
13330 | bl->gdbarch); | |
55aa24fb SDJ |
13331 | |
13332 | return bkpt_remove_location (bl); | |
13333 | } | |
13334 | ||
13335 | static void | |
f00aae0f | 13336 | bkpt_probe_create_sals_from_location (const struct event_location *location, |
5f700d83 | 13337 | struct linespec_result *canonical, |
f00aae0f | 13338 | enum bptype type_wanted) |
55aa24fb SDJ |
13339 | { |
13340 | struct linespec_sals lsal; | |
13341 | ||
f00aae0f KS |
13342 | lsal.sals = parse_probes (location, canonical); |
13343 | lsal.canonical = xstrdup (event_location_to_string (canonical->location)); | |
55aa24fb SDJ |
13344 | VEC_safe_push (linespec_sals, canonical->sals, &lsal); |
13345 | } | |
13346 | ||
13347 | static void | |
f00aae0f KS |
13348 | bkpt_probe_decode_location (struct breakpoint *b, |
13349 | const struct event_location *location, | |
55aa24fb SDJ |
13350 | struct symtabs_and_lines *sals) |
13351 | { | |
f00aae0f | 13352 | *sals = parse_probes (location, NULL); |
55aa24fb SDJ |
13353 | if (!sals->sals) |
13354 | error (_("probe not found")); | |
13355 | } | |
13356 | ||
348d480f | 13357 | /* The breakpoint_ops structure to be used in tracepoints. */ |
876fa593 | 13358 | |
348d480f PA |
13359 | static void |
13360 | tracepoint_re_set (struct breakpoint *b) | |
13361 | { | |
13362 | breakpoint_re_set_default (b); | |
13363 | } | |
876fa593 | 13364 | |
348d480f PA |
13365 | static int |
13366 | tracepoint_breakpoint_hit (const struct bp_location *bl, | |
09ac7c10 TT |
13367 | struct address_space *aspace, CORE_ADDR bp_addr, |
13368 | const struct target_waitstatus *ws) | |
348d480f PA |
13369 | { |
13370 | /* By definition, the inferior does not report stops at | |
13371 | tracepoints. */ | |
13372 | return 0; | |
74960c60 VP |
13373 | } |
13374 | ||
13375 | static void | |
348d480f PA |
13376 | tracepoint_print_one_detail (const struct breakpoint *self, |
13377 | struct ui_out *uiout) | |
74960c60 | 13378 | { |
d9b3f62e PA |
13379 | struct tracepoint *tp = (struct tracepoint *) self; |
13380 | if (tp->static_trace_marker_id) | |
348d480f PA |
13381 | { |
13382 | gdb_assert (self->type == bp_static_tracepoint); | |
cc59ec59 | 13383 | |
348d480f PA |
13384 | ui_out_text (uiout, "\tmarker id is "); |
13385 | ui_out_field_string (uiout, "static-tracepoint-marker-string-id", | |
d9b3f62e | 13386 | tp->static_trace_marker_id); |
348d480f PA |
13387 | ui_out_text (uiout, "\n"); |
13388 | } | |
0d381245 VP |
13389 | } |
13390 | ||
a474d7c2 | 13391 | static void |
348d480f | 13392 | tracepoint_print_mention (struct breakpoint *b) |
a474d7c2 | 13393 | { |
79a45e25 | 13394 | if (ui_out_is_mi_like_p (current_uiout)) |
348d480f | 13395 | return; |
cc59ec59 | 13396 | |
348d480f PA |
13397 | switch (b->type) |
13398 | { | |
13399 | case bp_tracepoint: | |
13400 | printf_filtered (_("Tracepoint")); | |
13401 | printf_filtered (_(" %d"), b->number); | |
13402 | break; | |
13403 | case bp_fast_tracepoint: | |
13404 | printf_filtered (_("Fast tracepoint")); | |
13405 | printf_filtered (_(" %d"), b->number); | |
13406 | break; | |
13407 | case bp_static_tracepoint: | |
13408 | printf_filtered (_("Static tracepoint")); | |
13409 | printf_filtered (_(" %d"), b->number); | |
13410 | break; | |
13411 | default: | |
13412 | internal_error (__FILE__, __LINE__, | |
13413 | _("unhandled tracepoint type %d"), (int) b->type); | |
13414 | } | |
13415 | ||
13416 | say_where (b); | |
a474d7c2 PA |
13417 | } |
13418 | ||
348d480f | 13419 | static void |
d9b3f62e | 13420 | tracepoint_print_recreate (struct breakpoint *self, struct ui_file *fp) |
a474d7c2 | 13421 | { |
d9b3f62e PA |
13422 | struct tracepoint *tp = (struct tracepoint *) self; |
13423 | ||
13424 | if (self->type == bp_fast_tracepoint) | |
348d480f | 13425 | fprintf_unfiltered (fp, "ftrace"); |
d9b3f62e | 13426 | if (self->type == bp_static_tracepoint) |
348d480f | 13427 | fprintf_unfiltered (fp, "strace"); |
d9b3f62e | 13428 | else if (self->type == bp_tracepoint) |
348d480f PA |
13429 | fprintf_unfiltered (fp, "trace"); |
13430 | else | |
13431 | internal_error (__FILE__, __LINE__, | |
d9b3f62e | 13432 | _("unhandled tracepoint type %d"), (int) self->type); |
cc59ec59 | 13433 | |
f00aae0f KS |
13434 | fprintf_unfiltered (fp, " %s", |
13435 | event_location_to_string (self->location)); | |
d9b3f62e PA |
13436 | print_recreate_thread (self, fp); |
13437 | ||
13438 | if (tp->pass_count) | |
13439 | fprintf_unfiltered (fp, " passcount %d\n", tp->pass_count); | |
a474d7c2 PA |
13440 | } |
13441 | ||
983af33b | 13442 | static void |
f00aae0f KS |
13443 | tracepoint_create_sals_from_location (const struct event_location *location, |
13444 | struct linespec_result *canonical, | |
13445 | enum bptype type_wanted) | |
983af33b | 13446 | { |
f00aae0f | 13447 | create_sals_from_location_default (location, canonical, type_wanted); |
983af33b SDJ |
13448 | } |
13449 | ||
13450 | static void | |
13451 | tracepoint_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13452 | struct linespec_result *canonical, | |
983af33b | 13453 | char *cond_string, |
e7e0cddf | 13454 | char *extra_string, |
983af33b SDJ |
13455 | enum bptype type_wanted, |
13456 | enum bpdisp disposition, | |
13457 | int thread, | |
13458 | int task, int ignore_count, | |
13459 | const struct breakpoint_ops *ops, | |
13460 | int from_tty, int enabled, | |
44f238bb | 13461 | int internal, unsigned flags) |
983af33b | 13462 | { |
023fa29b | 13463 | create_breakpoints_sal_default (gdbarch, canonical, |
e7e0cddf SS |
13464 | cond_string, extra_string, |
13465 | type_wanted, | |
983af33b SDJ |
13466 | disposition, thread, task, |
13467 | ignore_count, ops, from_tty, | |
44f238bb | 13468 | enabled, internal, flags); |
983af33b SDJ |
13469 | } |
13470 | ||
13471 | static void | |
f00aae0f KS |
13472 | tracepoint_decode_location (struct breakpoint *b, |
13473 | const struct event_location *location, | |
983af33b SDJ |
13474 | struct symtabs_and_lines *sals) |
13475 | { | |
f00aae0f | 13476 | decode_location_default (b, location, sals); |
983af33b SDJ |
13477 | } |
13478 | ||
2060206e | 13479 | struct breakpoint_ops tracepoint_breakpoint_ops; |
348d480f | 13480 | |
55aa24fb SDJ |
13481 | /* The breakpoint_ops structure to be use on tracepoints placed in a |
13482 | static probe. */ | |
13483 | ||
13484 | static void | |
f00aae0f KS |
13485 | tracepoint_probe_create_sals_from_location |
13486 | (const struct event_location *location, | |
13487 | struct linespec_result *canonical, | |
13488 | enum bptype type_wanted) | |
55aa24fb SDJ |
13489 | { |
13490 | /* We use the same method for breakpoint on probes. */ | |
f00aae0f | 13491 | bkpt_probe_create_sals_from_location (location, canonical, type_wanted); |
55aa24fb SDJ |
13492 | } |
13493 | ||
13494 | static void | |
f00aae0f KS |
13495 | tracepoint_probe_decode_location (struct breakpoint *b, |
13496 | const struct event_location *location, | |
55aa24fb SDJ |
13497 | struct symtabs_and_lines *sals) |
13498 | { | |
13499 | /* We use the same method for breakpoint on probes. */ | |
f00aae0f | 13500 | bkpt_probe_decode_location (b, location, sals); |
55aa24fb SDJ |
13501 | } |
13502 | ||
13503 | static struct breakpoint_ops tracepoint_probe_breakpoint_ops; | |
13504 | ||
5c2b4418 HZ |
13505 | /* Dprintf breakpoint_ops methods. */ |
13506 | ||
13507 | static void | |
13508 | dprintf_re_set (struct breakpoint *b) | |
13509 | { | |
13510 | breakpoint_re_set_default (b); | |
13511 | ||
f00aae0f KS |
13512 | /* extra_string should never be non-NULL for dprintf. */ |
13513 | gdb_assert (b->extra_string != NULL); | |
5c2b4418 HZ |
13514 | |
13515 | /* 1 - connect to target 1, that can run breakpoint commands. | |
13516 | 2 - create a dprintf, which resolves fine. | |
13517 | 3 - disconnect from target 1 | |
13518 | 4 - connect to target 2, that can NOT run breakpoint commands. | |
13519 | ||
13520 | After steps #3/#4, you'll want the dprintf command list to | |
13521 | be updated, because target 1 and 2 may well return different | |
13522 | answers for target_can_run_breakpoint_commands(). | |
13523 | Given absence of finer grained resetting, we get to do | |
13524 | it all the time. */ | |
13525 | if (b->extra_string != NULL) | |
13526 | update_dprintf_command_list (b); | |
13527 | } | |
13528 | ||
2d9442cc HZ |
13529 | /* Implement the "print_recreate" breakpoint_ops method for dprintf. */ |
13530 | ||
13531 | static void | |
13532 | dprintf_print_recreate (struct breakpoint *tp, struct ui_file *fp) | |
13533 | { | |
f00aae0f KS |
13534 | fprintf_unfiltered (fp, "dprintf %s,%s", |
13535 | event_location_to_string (tp->location), | |
2d9442cc HZ |
13536 | tp->extra_string); |
13537 | print_recreate_thread (tp, fp); | |
13538 | } | |
13539 | ||
9d6e6e84 HZ |
13540 | /* Implement the "after_condition_true" breakpoint_ops method for |
13541 | dprintf. | |
13542 | ||
13543 | dprintf's are implemented with regular commands in their command | |
13544 | list, but we run the commands here instead of before presenting the | |
13545 | stop to the user, as dprintf's don't actually cause a stop. This | |
13546 | also makes it so that the commands of multiple dprintfs at the same | |
13547 | address are all handled. */ | |
13548 | ||
13549 | static void | |
13550 | dprintf_after_condition_true (struct bpstats *bs) | |
13551 | { | |
13552 | struct cleanup *old_chain; | |
13553 | struct bpstats tmp_bs = { NULL }; | |
13554 | struct bpstats *tmp_bs_p = &tmp_bs; | |
13555 | ||
13556 | /* dprintf's never cause a stop. This wasn't set in the | |
13557 | check_status hook instead because that would make the dprintf's | |
13558 | condition not be evaluated. */ | |
13559 | bs->stop = 0; | |
13560 | ||
13561 | /* Run the command list here. Take ownership of it instead of | |
13562 | copying. We never want these commands to run later in | |
13563 | bpstat_do_actions, if a breakpoint that causes a stop happens to | |
13564 | be set at same address as this dprintf, or even if running the | |
13565 | commands here throws. */ | |
13566 | tmp_bs.commands = bs->commands; | |
13567 | bs->commands = NULL; | |
13568 | old_chain = make_cleanup_decref_counted_command_line (&tmp_bs.commands); | |
13569 | ||
13570 | bpstat_do_actions_1 (&tmp_bs_p); | |
13571 | ||
13572 | /* 'tmp_bs.commands' will usually be NULL by now, but | |
13573 | bpstat_do_actions_1 may return early without processing the whole | |
13574 | list. */ | |
13575 | do_cleanups (old_chain); | |
13576 | } | |
13577 | ||
983af33b SDJ |
13578 | /* The breakpoint_ops structure to be used on static tracepoints with |
13579 | markers (`-m'). */ | |
13580 | ||
13581 | static void | |
f00aae0f | 13582 | strace_marker_create_sals_from_location (const struct event_location *location, |
5f700d83 | 13583 | struct linespec_result *canonical, |
f00aae0f | 13584 | enum bptype type_wanted) |
983af33b SDJ |
13585 | { |
13586 | struct linespec_sals lsal; | |
f00aae0f KS |
13587 | const char *arg_start, *arg; |
13588 | char *str; | |
13589 | struct cleanup *cleanup; | |
983af33b | 13590 | |
f00aae0f KS |
13591 | arg = arg_start = get_linespec_location (location); |
13592 | lsal.sals = decode_static_tracepoint_spec (&arg); | |
983af33b | 13593 | |
f00aae0f KS |
13594 | str = savestring (arg_start, arg - arg_start); |
13595 | cleanup = make_cleanup (xfree, str); | |
13596 | canonical->location = new_linespec_location (&str); | |
13597 | do_cleanups (cleanup); | |
983af33b | 13598 | |
f00aae0f | 13599 | lsal.canonical = xstrdup (event_location_to_string (canonical->location)); |
983af33b SDJ |
13600 | VEC_safe_push (linespec_sals, canonical->sals, &lsal); |
13601 | } | |
13602 | ||
13603 | static void | |
13604 | strace_marker_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13605 | struct linespec_result *canonical, | |
983af33b | 13606 | char *cond_string, |
e7e0cddf | 13607 | char *extra_string, |
983af33b SDJ |
13608 | enum bptype type_wanted, |
13609 | enum bpdisp disposition, | |
13610 | int thread, | |
13611 | int task, int ignore_count, | |
13612 | const struct breakpoint_ops *ops, | |
13613 | int from_tty, int enabled, | |
44f238bb | 13614 | int internal, unsigned flags) |
983af33b SDJ |
13615 | { |
13616 | int i; | |
52d361e1 YQ |
13617 | struct linespec_sals *lsal = VEC_index (linespec_sals, |
13618 | canonical->sals, 0); | |
983af33b SDJ |
13619 | |
13620 | /* If the user is creating a static tracepoint by marker id | |
13621 | (strace -m MARKER_ID), then store the sals index, so that | |
13622 | breakpoint_re_set can try to match up which of the newly | |
13623 | found markers corresponds to this one, and, don't try to | |
13624 | expand multiple locations for each sal, given than SALS | |
13625 | already should contain all sals for MARKER_ID. */ | |
13626 | ||
13627 | for (i = 0; i < lsal->sals.nelts; ++i) | |
13628 | { | |
13629 | struct symtabs_and_lines expanded; | |
13630 | struct tracepoint *tp; | |
13631 | struct cleanup *old_chain; | |
f00aae0f | 13632 | struct event_location *location; |
983af33b SDJ |
13633 | |
13634 | expanded.nelts = 1; | |
13635 | expanded.sals = &lsal->sals.sals[i]; | |
13636 | ||
f00aae0f KS |
13637 | location = copy_event_location (canonical->location); |
13638 | old_chain = make_cleanup_delete_event_location (location); | |
983af33b SDJ |
13639 | |
13640 | tp = XCNEW (struct tracepoint); | |
13641 | init_breakpoint_sal (&tp->base, gdbarch, expanded, | |
f00aae0f | 13642 | location, NULL, |
e7e0cddf SS |
13643 | cond_string, extra_string, |
13644 | type_wanted, disposition, | |
983af33b | 13645 | thread, task, ignore_count, ops, |
44f238bb | 13646 | from_tty, enabled, internal, flags, |
983af33b SDJ |
13647 | canonical->special_display); |
13648 | /* Given that its possible to have multiple markers with | |
13649 | the same string id, if the user is creating a static | |
13650 | tracepoint by marker id ("strace -m MARKER_ID"), then | |
13651 | store the sals index, so that breakpoint_re_set can | |
13652 | try to match up which of the newly found markers | |
13653 | corresponds to this one */ | |
13654 | tp->static_trace_marker_id_idx = i; | |
13655 | ||
13656 | install_breakpoint (internal, &tp->base, 0); | |
13657 | ||
13658 | discard_cleanups (old_chain); | |
13659 | } | |
13660 | } | |
13661 | ||
13662 | static void | |
f00aae0f KS |
13663 | strace_marker_decode_location (struct breakpoint *b, |
13664 | const struct event_location *location, | |
983af33b SDJ |
13665 | struct symtabs_and_lines *sals) |
13666 | { | |
13667 | struct tracepoint *tp = (struct tracepoint *) b; | |
f00aae0f | 13668 | const char *s = get_linespec_location (location); |
983af33b | 13669 | |
f00aae0f | 13670 | *sals = decode_static_tracepoint_spec (&s); |
983af33b SDJ |
13671 | if (sals->nelts > tp->static_trace_marker_id_idx) |
13672 | { | |
13673 | sals->sals[0] = sals->sals[tp->static_trace_marker_id_idx]; | |
13674 | sals->nelts = 1; | |
13675 | } | |
13676 | else | |
13677 | error (_("marker %s not found"), tp->static_trace_marker_id); | |
13678 | } | |
13679 | ||
13680 | static struct breakpoint_ops strace_marker_breakpoint_ops; | |
13681 | ||
13682 | static int | |
13683 | strace_marker_p (struct breakpoint *b) | |
13684 | { | |
13685 | return b->ops == &strace_marker_breakpoint_ops; | |
13686 | } | |
13687 | ||
53a5351d | 13688 | /* Delete a breakpoint and clean up all traces of it in the data |
f431efe5 | 13689 | structures. */ |
c906108c SS |
13690 | |
13691 | void | |
fba45db2 | 13692 | delete_breakpoint (struct breakpoint *bpt) |
c906108c | 13693 | { |
52f0bd74 | 13694 | struct breakpoint *b; |
c906108c | 13695 | |
8a3fe4f8 | 13696 | gdb_assert (bpt != NULL); |
c906108c | 13697 | |
4a64f543 MS |
13698 | /* Has this bp already been deleted? This can happen because |
13699 | multiple lists can hold pointers to bp's. bpstat lists are | |
13700 | especial culprits. | |
13701 | ||
13702 | One example of this happening is a watchpoint's scope bp. When | |
13703 | the scope bp triggers, we notice that the watchpoint is out of | |
13704 | scope, and delete it. We also delete its scope bp. But the | |
13705 | scope bp is marked "auto-deleting", and is already on a bpstat. | |
13706 | That bpstat is then checked for auto-deleting bp's, which are | |
13707 | deleted. | |
13708 | ||
13709 | A real solution to this problem might involve reference counts in | |
13710 | bp's, and/or giving them pointers back to their referencing | |
13711 | bpstat's, and teaching delete_breakpoint to only free a bp's | |
13712 | storage when no more references were extent. A cheaper bandaid | |
13713 | was chosen. */ | |
c906108c SS |
13714 | if (bpt->type == bp_none) |
13715 | return; | |
13716 | ||
4a64f543 MS |
13717 | /* At least avoid this stale reference until the reference counting |
13718 | of breakpoints gets resolved. */ | |
d0fb5eae | 13719 | if (bpt->related_breakpoint != bpt) |
e5a0a904 | 13720 | { |
d0fb5eae | 13721 | struct breakpoint *related; |
3a5c3e22 | 13722 | struct watchpoint *w; |
d0fb5eae JK |
13723 | |
13724 | if (bpt->type == bp_watchpoint_scope) | |
3a5c3e22 | 13725 | w = (struct watchpoint *) bpt->related_breakpoint; |
d0fb5eae | 13726 | else if (bpt->related_breakpoint->type == bp_watchpoint_scope) |
3a5c3e22 PA |
13727 | w = (struct watchpoint *) bpt; |
13728 | else | |
13729 | w = NULL; | |
13730 | if (w != NULL) | |
13731 | watchpoint_del_at_next_stop (w); | |
d0fb5eae JK |
13732 | |
13733 | /* Unlink bpt from the bpt->related_breakpoint ring. */ | |
13734 | for (related = bpt; related->related_breakpoint != bpt; | |
13735 | related = related->related_breakpoint); | |
13736 | related->related_breakpoint = bpt->related_breakpoint; | |
13737 | bpt->related_breakpoint = bpt; | |
e5a0a904 JK |
13738 | } |
13739 | ||
a9634178 TJB |
13740 | /* watch_command_1 creates a watchpoint but only sets its number if |
13741 | update_watchpoint succeeds in creating its bp_locations. If there's | |
13742 | a problem in that process, we'll be asked to delete the half-created | |
13743 | watchpoint. In that case, don't announce the deletion. */ | |
13744 | if (bpt->number) | |
13745 | observer_notify_breakpoint_deleted (bpt); | |
c906108c | 13746 | |
c906108c SS |
13747 | if (breakpoint_chain == bpt) |
13748 | breakpoint_chain = bpt->next; | |
13749 | ||
c906108c SS |
13750 | ALL_BREAKPOINTS (b) |
13751 | if (b->next == bpt) | |
c5aa993b JM |
13752 | { |
13753 | b->next = bpt->next; | |
13754 | break; | |
13755 | } | |
c906108c | 13756 | |
f431efe5 PA |
13757 | /* Be sure no bpstat's are pointing at the breakpoint after it's |
13758 | been freed. */ | |
13759 | /* FIXME, how can we find all bpstat's? We just check stop_bpstat | |
e5dd4106 | 13760 | in all threads for now. Note that we cannot just remove bpstats |
f431efe5 PA |
13761 | pointing at bpt from the stop_bpstat list entirely, as breakpoint |
13762 | commands are associated with the bpstat; if we remove it here, | |
13763 | then the later call to bpstat_do_actions (&stop_bpstat); in | |
13764 | event-top.c won't do anything, and temporary breakpoints with | |
13765 | commands won't work. */ | |
13766 | ||
13767 | iterate_over_threads (bpstat_remove_breakpoint_callback, bpt); | |
13768 | ||
4a64f543 MS |
13769 | /* Now that breakpoint is removed from breakpoint list, update the |
13770 | global location list. This will remove locations that used to | |
13771 | belong to this breakpoint. Do this before freeing the breakpoint | |
13772 | itself, since remove_breakpoint looks at location's owner. It | |
13773 | might be better design to have location completely | |
13774 | self-contained, but it's not the case now. */ | |
44702360 | 13775 | update_global_location_list (UGLL_DONT_INSERT); |
74960c60 | 13776 | |
348d480f | 13777 | bpt->ops->dtor (bpt); |
4a64f543 MS |
13778 | /* On the chance that someone will soon try again to delete this |
13779 | same bp, we mark it as deleted before freeing its storage. */ | |
c906108c | 13780 | bpt->type = bp_none; |
b8c9b27d | 13781 | xfree (bpt); |
c906108c SS |
13782 | } |
13783 | ||
4d6140d9 AC |
13784 | static void |
13785 | do_delete_breakpoint_cleanup (void *b) | |
13786 | { | |
9a3c8263 | 13787 | delete_breakpoint ((struct breakpoint *) b); |
4d6140d9 AC |
13788 | } |
13789 | ||
13790 | struct cleanup * | |
13791 | make_cleanup_delete_breakpoint (struct breakpoint *b) | |
13792 | { | |
13793 | return make_cleanup (do_delete_breakpoint_cleanup, b); | |
13794 | } | |
13795 | ||
51be5b68 PA |
13796 | /* Iterator function to call a user-provided callback function once |
13797 | for each of B and its related breakpoints. */ | |
13798 | ||
13799 | static void | |
13800 | iterate_over_related_breakpoints (struct breakpoint *b, | |
13801 | void (*function) (struct breakpoint *, | |
13802 | void *), | |
13803 | void *data) | |
13804 | { | |
13805 | struct breakpoint *related; | |
13806 | ||
13807 | related = b; | |
13808 | do | |
13809 | { | |
13810 | struct breakpoint *next; | |
13811 | ||
13812 | /* FUNCTION may delete RELATED. */ | |
13813 | next = related->related_breakpoint; | |
13814 | ||
13815 | if (next == related) | |
13816 | { | |
13817 | /* RELATED is the last ring entry. */ | |
13818 | function (related, data); | |
13819 | ||
13820 | /* FUNCTION may have deleted it, so we'd never reach back to | |
13821 | B. There's nothing left to do anyway, so just break | |
13822 | out. */ | |
13823 | break; | |
13824 | } | |
13825 | else | |
13826 | function (related, data); | |
13827 | ||
13828 | related = next; | |
13829 | } | |
13830 | while (related != b); | |
13831 | } | |
95a42b64 TT |
13832 | |
13833 | static void | |
13834 | do_delete_breakpoint (struct breakpoint *b, void *ignore) | |
13835 | { | |
13836 | delete_breakpoint (b); | |
13837 | } | |
13838 | ||
51be5b68 PA |
13839 | /* A callback for map_breakpoint_numbers that calls |
13840 | delete_breakpoint. */ | |
13841 | ||
13842 | static void | |
13843 | do_map_delete_breakpoint (struct breakpoint *b, void *ignore) | |
13844 | { | |
13845 | iterate_over_related_breakpoints (b, do_delete_breakpoint, NULL); | |
13846 | } | |
13847 | ||
c906108c | 13848 | void |
fba45db2 | 13849 | delete_command (char *arg, int from_tty) |
c906108c | 13850 | { |
35df4500 | 13851 | struct breakpoint *b, *b_tmp; |
c906108c | 13852 | |
ea9365bb TT |
13853 | dont_repeat (); |
13854 | ||
c906108c SS |
13855 | if (arg == 0) |
13856 | { | |
13857 | int breaks_to_delete = 0; | |
13858 | ||
46c6471b PA |
13859 | /* Delete all breakpoints if no argument. Do not delete |
13860 | internal breakpoints, these have to be deleted with an | |
13861 | explicit breakpoint number argument. */ | |
c5aa993b | 13862 | ALL_BREAKPOINTS (b) |
46c6471b | 13863 | if (user_breakpoint_p (b)) |
973d738b DJ |
13864 | { |
13865 | breaks_to_delete = 1; | |
13866 | break; | |
13867 | } | |
c906108c SS |
13868 | |
13869 | /* Ask user only if there are some breakpoints to delete. */ | |
13870 | if (!from_tty | |
e2e0b3e5 | 13871 | || (breaks_to_delete && query (_("Delete all breakpoints? ")))) |
c906108c | 13872 | { |
35df4500 | 13873 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
46c6471b | 13874 | if (user_breakpoint_p (b)) |
c5aa993b | 13875 | delete_breakpoint (b); |
c906108c SS |
13876 | } |
13877 | } | |
13878 | else | |
51be5b68 | 13879 | map_breakpoint_numbers (arg, do_map_delete_breakpoint, NULL); |
c906108c SS |
13880 | } |
13881 | ||
0d381245 VP |
13882 | static int |
13883 | all_locations_are_pending (struct bp_location *loc) | |
fe3f5fa8 | 13884 | { |
0d381245 | 13885 | for (; loc; loc = loc->next) |
8645ff69 UW |
13886 | if (!loc->shlib_disabled |
13887 | && !loc->pspace->executing_startup) | |
0d381245 VP |
13888 | return 0; |
13889 | return 1; | |
fe3f5fa8 VP |
13890 | } |
13891 | ||
776592bf DE |
13892 | /* Subroutine of update_breakpoint_locations to simplify it. |
13893 | Return non-zero if multiple fns in list LOC have the same name. | |
13894 | Null names are ignored. */ | |
13895 | ||
13896 | static int | |
13897 | ambiguous_names_p (struct bp_location *loc) | |
13898 | { | |
13899 | struct bp_location *l; | |
13900 | htab_t htab = htab_create_alloc (13, htab_hash_string, | |
cc59ec59 MS |
13901 | (int (*) (const void *, |
13902 | const void *)) streq, | |
776592bf DE |
13903 | NULL, xcalloc, xfree); |
13904 | ||
13905 | for (l = loc; l != NULL; l = l->next) | |
13906 | { | |
13907 | const char **slot; | |
13908 | const char *name = l->function_name; | |
13909 | ||
13910 | /* Allow for some names to be NULL, ignore them. */ | |
13911 | if (name == NULL) | |
13912 | continue; | |
13913 | ||
13914 | slot = (const char **) htab_find_slot (htab, (const void *) name, | |
13915 | INSERT); | |
4a64f543 MS |
13916 | /* NOTE: We can assume slot != NULL here because xcalloc never |
13917 | returns NULL. */ | |
776592bf DE |
13918 | if (*slot != NULL) |
13919 | { | |
13920 | htab_delete (htab); | |
13921 | return 1; | |
13922 | } | |
13923 | *slot = name; | |
13924 | } | |
13925 | ||
13926 | htab_delete (htab); | |
13927 | return 0; | |
13928 | } | |
13929 | ||
0fb4aa4b PA |
13930 | /* When symbols change, it probably means the sources changed as well, |
13931 | and it might mean the static tracepoint markers are no longer at | |
13932 | the same address or line numbers they used to be at last we | |
13933 | checked. Losing your static tracepoints whenever you rebuild is | |
13934 | undesirable. This function tries to resync/rematch gdb static | |
13935 | tracepoints with the markers on the target, for static tracepoints | |
13936 | that have not been set by marker id. Static tracepoint that have | |
13937 | been set by marker id are reset by marker id in breakpoint_re_set. | |
13938 | The heuristic is: | |
13939 | ||
13940 | 1) For a tracepoint set at a specific address, look for a marker at | |
13941 | the old PC. If one is found there, assume to be the same marker. | |
13942 | If the name / string id of the marker found is different from the | |
13943 | previous known name, assume that means the user renamed the marker | |
13944 | in the sources, and output a warning. | |
13945 | ||
13946 | 2) For a tracepoint set at a given line number, look for a marker | |
13947 | at the new address of the old line number. If one is found there, | |
13948 | assume to be the same marker. If the name / string id of the | |
13949 | marker found is different from the previous known name, assume that | |
13950 | means the user renamed the marker in the sources, and output a | |
13951 | warning. | |
13952 | ||
13953 | 3) If a marker is no longer found at the same address or line, it | |
13954 | may mean the marker no longer exists. But it may also just mean | |
13955 | the code changed a bit. Maybe the user added a few lines of code | |
13956 | that made the marker move up or down (in line number terms). Ask | |
13957 | the target for info about the marker with the string id as we knew | |
13958 | it. If found, update line number and address in the matching | |
13959 | static tracepoint. This will get confused if there's more than one | |
13960 | marker with the same ID (possible in UST, although unadvised | |
13961 | precisely because it confuses tools). */ | |
13962 | ||
13963 | static struct symtab_and_line | |
13964 | update_static_tracepoint (struct breakpoint *b, struct symtab_and_line sal) | |
13965 | { | |
d9b3f62e | 13966 | struct tracepoint *tp = (struct tracepoint *) b; |
0fb4aa4b PA |
13967 | struct static_tracepoint_marker marker; |
13968 | CORE_ADDR pc; | |
0fb4aa4b PA |
13969 | |
13970 | pc = sal.pc; | |
13971 | if (sal.line) | |
13972 | find_line_pc (sal.symtab, sal.line, &pc); | |
13973 | ||
13974 | if (target_static_tracepoint_marker_at (pc, &marker)) | |
13975 | { | |
d9b3f62e | 13976 | if (strcmp (tp->static_trace_marker_id, marker.str_id) != 0) |
0fb4aa4b PA |
13977 | warning (_("static tracepoint %d changed probed marker from %s to %s"), |
13978 | b->number, | |
d9b3f62e | 13979 | tp->static_trace_marker_id, marker.str_id); |
0fb4aa4b | 13980 | |
d9b3f62e PA |
13981 | xfree (tp->static_trace_marker_id); |
13982 | tp->static_trace_marker_id = xstrdup (marker.str_id); | |
0fb4aa4b PA |
13983 | release_static_tracepoint_marker (&marker); |
13984 | ||
13985 | return sal; | |
13986 | } | |
13987 | ||
13988 | /* Old marker wasn't found on target at lineno. Try looking it up | |
13989 | by string ID. */ | |
13990 | if (!sal.explicit_pc | |
13991 | && sal.line != 0 | |
13992 | && sal.symtab != NULL | |
d9b3f62e | 13993 | && tp->static_trace_marker_id != NULL) |
0fb4aa4b PA |
13994 | { |
13995 | VEC(static_tracepoint_marker_p) *markers; | |
13996 | ||
13997 | markers | |
d9b3f62e | 13998 | = target_static_tracepoint_markers_by_strid (tp->static_trace_marker_id); |
0fb4aa4b PA |
13999 | |
14000 | if (!VEC_empty(static_tracepoint_marker_p, markers)) | |
14001 | { | |
80e1d417 | 14002 | struct symtab_and_line sal2; |
0fb4aa4b | 14003 | struct symbol *sym; |
80e1d417 | 14004 | struct static_tracepoint_marker *tpmarker; |
79a45e25 | 14005 | struct ui_out *uiout = current_uiout; |
67994074 | 14006 | struct explicit_location explicit_loc; |
0fb4aa4b | 14007 | |
80e1d417 | 14008 | tpmarker = VEC_index (static_tracepoint_marker_p, markers, 0); |
0fb4aa4b | 14009 | |
d9b3f62e | 14010 | xfree (tp->static_trace_marker_id); |
80e1d417 | 14011 | tp->static_trace_marker_id = xstrdup (tpmarker->str_id); |
0fb4aa4b PA |
14012 | |
14013 | warning (_("marker for static tracepoint %d (%s) not " | |
14014 | "found at previous line number"), | |
d9b3f62e | 14015 | b->number, tp->static_trace_marker_id); |
0fb4aa4b | 14016 | |
80e1d417 | 14017 | init_sal (&sal2); |
0fb4aa4b | 14018 | |
80e1d417 | 14019 | sal2.pc = tpmarker->address; |
0fb4aa4b | 14020 | |
80e1d417 AS |
14021 | sal2 = find_pc_line (tpmarker->address, 0); |
14022 | sym = find_pc_sect_function (tpmarker->address, NULL); | |
0fb4aa4b PA |
14023 | ui_out_text (uiout, "Now in "); |
14024 | if (sym) | |
14025 | { | |
14026 | ui_out_field_string (uiout, "func", | |
14027 | SYMBOL_PRINT_NAME (sym)); | |
14028 | ui_out_text (uiout, " at "); | |
14029 | } | |
05cba821 JK |
14030 | ui_out_field_string (uiout, "file", |
14031 | symtab_to_filename_for_display (sal2.symtab)); | |
0fb4aa4b PA |
14032 | ui_out_text (uiout, ":"); |
14033 | ||
14034 | if (ui_out_is_mi_like_p (uiout)) | |
14035 | { | |
0b0865da | 14036 | const char *fullname = symtab_to_fullname (sal2.symtab); |
0fb4aa4b | 14037 | |
f35a17b5 | 14038 | ui_out_field_string (uiout, "fullname", fullname); |
0fb4aa4b PA |
14039 | } |
14040 | ||
80e1d417 | 14041 | ui_out_field_int (uiout, "line", sal2.line); |
0fb4aa4b PA |
14042 | ui_out_text (uiout, "\n"); |
14043 | ||
80e1d417 | 14044 | b->loc->line_number = sal2.line; |
2f202fde | 14045 | b->loc->symtab = sym != NULL ? sal2.symtab : NULL; |
0fb4aa4b | 14046 | |
f00aae0f | 14047 | delete_event_location (b->location); |
67994074 KS |
14048 | initialize_explicit_location (&explicit_loc); |
14049 | explicit_loc.source_filename | |
00e52e53 | 14050 | = ASTRDUP (symtab_to_filename_for_display (sal2.symtab)); |
67994074 KS |
14051 | explicit_loc.line_offset.offset = b->loc->line_number; |
14052 | explicit_loc.line_offset.sign = LINE_OFFSET_NONE; | |
14053 | b->location = new_explicit_location (&explicit_loc); | |
0fb4aa4b PA |
14054 | |
14055 | /* Might be nice to check if function changed, and warn if | |
14056 | so. */ | |
14057 | ||
80e1d417 | 14058 | release_static_tracepoint_marker (tpmarker); |
0fb4aa4b PA |
14059 | } |
14060 | } | |
14061 | return sal; | |
14062 | } | |
14063 | ||
8d3788bd VP |
14064 | /* Returns 1 iff locations A and B are sufficiently same that |
14065 | we don't need to report breakpoint as changed. */ | |
14066 | ||
14067 | static int | |
14068 | locations_are_equal (struct bp_location *a, struct bp_location *b) | |
14069 | { | |
14070 | while (a && b) | |
14071 | { | |
14072 | if (a->address != b->address) | |
14073 | return 0; | |
14074 | ||
14075 | if (a->shlib_disabled != b->shlib_disabled) | |
14076 | return 0; | |
14077 | ||
14078 | if (a->enabled != b->enabled) | |
14079 | return 0; | |
14080 | ||
14081 | a = a->next; | |
14082 | b = b->next; | |
14083 | } | |
14084 | ||
14085 | if ((a == NULL) != (b == NULL)) | |
14086 | return 0; | |
14087 | ||
14088 | return 1; | |
14089 | } | |
14090 | ||
f1310107 TJB |
14091 | /* Create new breakpoint locations for B (a hardware or software breakpoint) |
14092 | based on SALS and SALS_END. If SALS_END.NELTS is not zero, then B is | |
14093 | a ranged breakpoint. */ | |
14094 | ||
0e30163f | 14095 | void |
0d381245 | 14096 | update_breakpoint_locations (struct breakpoint *b, |
f1310107 TJB |
14097 | struct symtabs_and_lines sals, |
14098 | struct symtabs_and_lines sals_end) | |
fe3f5fa8 VP |
14099 | { |
14100 | int i; | |
0d381245 VP |
14101 | struct bp_location *existing_locations = b->loc; |
14102 | ||
f8eba3c6 TT |
14103 | if (sals_end.nelts != 0 && (sals.nelts != 1 || sals_end.nelts != 1)) |
14104 | { | |
14105 | /* Ranged breakpoints have only one start location and one end | |
14106 | location. */ | |
14107 | b->enable_state = bp_disabled; | |
44702360 | 14108 | update_global_location_list (UGLL_MAY_INSERT); |
f8eba3c6 TT |
14109 | printf_unfiltered (_("Could not reset ranged breakpoint %d: " |
14110 | "multiple locations found\n"), | |
14111 | b->number); | |
14112 | return; | |
14113 | } | |
f1310107 | 14114 | |
4a64f543 MS |
14115 | /* If there's no new locations, and all existing locations are |
14116 | pending, don't do anything. This optimizes the common case where | |
14117 | all locations are in the same shared library, that was unloaded. | |
14118 | We'd like to retain the location, so that when the library is | |
14119 | loaded again, we don't loose the enabled/disabled status of the | |
14120 | individual locations. */ | |
0d381245 | 14121 | if (all_locations_are_pending (existing_locations) && sals.nelts == 0) |
fe3f5fa8 VP |
14122 | return; |
14123 | ||
fe3f5fa8 VP |
14124 | b->loc = NULL; |
14125 | ||
0d381245 | 14126 | for (i = 0; i < sals.nelts; ++i) |
fe3f5fa8 | 14127 | { |
f8eba3c6 TT |
14128 | struct bp_location *new_loc; |
14129 | ||
14130 | switch_to_program_space_and_thread (sals.sals[i].pspace); | |
14131 | ||
14132 | new_loc = add_location_to_breakpoint (b, &(sals.sals[i])); | |
fe3f5fa8 | 14133 | |
0d381245 VP |
14134 | /* Reparse conditions, they might contain references to the |
14135 | old symtab. */ | |
14136 | if (b->cond_string != NULL) | |
14137 | { | |
bbc13ae3 | 14138 | const char *s; |
fe3f5fa8 | 14139 | |
0d381245 | 14140 | s = b->cond_string; |
492d29ea | 14141 | TRY |
0d381245 | 14142 | { |
1bb9788d TT |
14143 | new_loc->cond = parse_exp_1 (&s, sals.sals[i].pc, |
14144 | block_for_pc (sals.sals[i].pc), | |
0d381245 VP |
14145 | 0); |
14146 | } | |
492d29ea | 14147 | CATCH (e, RETURN_MASK_ERROR) |
0d381245 | 14148 | { |
3e43a32a MS |
14149 | warning (_("failed to reevaluate condition " |
14150 | "for breakpoint %d: %s"), | |
0d381245 VP |
14151 | b->number, e.message); |
14152 | new_loc->enabled = 0; | |
14153 | } | |
492d29ea | 14154 | END_CATCH |
0d381245 | 14155 | } |
fe3f5fa8 | 14156 | |
f1310107 TJB |
14157 | if (sals_end.nelts) |
14158 | { | |
14159 | CORE_ADDR end = find_breakpoint_range_end (sals_end.sals[0]); | |
14160 | ||
14161 | new_loc->length = end - sals.sals[0].pc + 1; | |
14162 | } | |
0d381245 | 14163 | } |
fe3f5fa8 | 14164 | |
4a64f543 MS |
14165 | /* If possible, carry over 'disable' status from existing |
14166 | breakpoints. */ | |
0d381245 VP |
14167 | { |
14168 | struct bp_location *e = existing_locations; | |
776592bf DE |
14169 | /* If there are multiple breakpoints with the same function name, |
14170 | e.g. for inline functions, comparing function names won't work. | |
14171 | Instead compare pc addresses; this is just a heuristic as things | |
14172 | may have moved, but in practice it gives the correct answer | |
14173 | often enough until a better solution is found. */ | |
14174 | int have_ambiguous_names = ambiguous_names_p (b->loc); | |
14175 | ||
0d381245 VP |
14176 | for (; e; e = e->next) |
14177 | { | |
14178 | if (!e->enabled && e->function_name) | |
14179 | { | |
14180 | struct bp_location *l = b->loc; | |
776592bf DE |
14181 | if (have_ambiguous_names) |
14182 | { | |
14183 | for (; l; l = l->next) | |
f1310107 | 14184 | if (breakpoint_locations_match (e, l)) |
776592bf DE |
14185 | { |
14186 | l->enabled = 0; | |
14187 | break; | |
14188 | } | |
14189 | } | |
14190 | else | |
14191 | { | |
14192 | for (; l; l = l->next) | |
14193 | if (l->function_name | |
14194 | && strcmp (e->function_name, l->function_name) == 0) | |
14195 | { | |
14196 | l->enabled = 0; | |
14197 | break; | |
14198 | } | |
14199 | } | |
0d381245 VP |
14200 | } |
14201 | } | |
14202 | } | |
fe3f5fa8 | 14203 | |
8d3788bd VP |
14204 | if (!locations_are_equal (existing_locations, b->loc)) |
14205 | observer_notify_breakpoint_modified (b); | |
14206 | ||
44702360 | 14207 | update_global_location_list (UGLL_MAY_INSERT); |
fe3f5fa8 VP |
14208 | } |
14209 | ||
f00aae0f | 14210 | /* Find the SaL locations corresponding to the given LOCATION. |
ef23e705 TJB |
14211 | On return, FOUND will be 1 if any SaL was found, zero otherwise. */ |
14212 | ||
14213 | static struct symtabs_and_lines | |
f00aae0f KS |
14214 | location_to_sals (struct breakpoint *b, struct event_location *location, |
14215 | int *found) | |
ef23e705 | 14216 | { |
02d20e4a | 14217 | struct symtabs_and_lines sals = {0}; |
492d29ea | 14218 | struct gdb_exception exception = exception_none; |
ef23e705 | 14219 | |
983af33b | 14220 | gdb_assert (b->ops != NULL); |
ef23e705 | 14221 | |
492d29ea | 14222 | TRY |
ef23e705 | 14223 | { |
f00aae0f | 14224 | b->ops->decode_location (b, location, &sals); |
ef23e705 | 14225 | } |
492d29ea | 14226 | CATCH (e, RETURN_MASK_ERROR) |
ef23e705 TJB |
14227 | { |
14228 | int not_found_and_ok = 0; | |
492d29ea PA |
14229 | |
14230 | exception = e; | |
14231 | ||
ef23e705 TJB |
14232 | /* For pending breakpoints, it's expected that parsing will |
14233 | fail until the right shared library is loaded. User has | |
14234 | already told to create pending breakpoints and don't need | |
14235 | extra messages. If breakpoint is in bp_shlib_disabled | |
14236 | state, then user already saw the message about that | |
14237 | breakpoint being disabled, and don't want to see more | |
14238 | errors. */ | |
58438ac1 | 14239 | if (e.error == NOT_FOUND_ERROR |
ef23e705 TJB |
14240 | && (b->condition_not_parsed |
14241 | || (b->loc && b->loc->shlib_disabled) | |
f8eba3c6 | 14242 | || (b->loc && b->loc->pspace->executing_startup) |
ef23e705 TJB |
14243 | || b->enable_state == bp_disabled)) |
14244 | not_found_and_ok = 1; | |
14245 | ||
14246 | if (!not_found_and_ok) | |
14247 | { | |
14248 | /* We surely don't want to warn about the same breakpoint | |
14249 | 10 times. One solution, implemented here, is disable | |
14250 | the breakpoint on error. Another solution would be to | |
14251 | have separate 'warning emitted' flag. Since this | |
14252 | happens only when a binary has changed, I don't know | |
14253 | which approach is better. */ | |
14254 | b->enable_state = bp_disabled; | |
14255 | throw_exception (e); | |
14256 | } | |
14257 | } | |
492d29ea | 14258 | END_CATCH |
ef23e705 | 14259 | |
492d29ea | 14260 | if (exception.reason == 0 || exception.error != NOT_FOUND_ERROR) |
ef23e705 | 14261 | { |
f8eba3c6 | 14262 | int i; |
ef23e705 | 14263 | |
f8eba3c6 TT |
14264 | for (i = 0; i < sals.nelts; ++i) |
14265 | resolve_sal_pc (&sals.sals[i]); | |
f00aae0f | 14266 | if (b->condition_not_parsed && b->extra_string != NULL) |
ef23e705 | 14267 | { |
ed1d1739 KS |
14268 | char *cond_string, *extra_string; |
14269 | int thread, task; | |
ef23e705 | 14270 | |
f00aae0f | 14271 | find_condition_and_thread (b->extra_string, sals.sals[0].pc, |
e7e0cddf SS |
14272 | &cond_string, &thread, &task, |
14273 | &extra_string); | |
f00aae0f | 14274 | gdb_assert (b->cond_string == NULL); |
ef23e705 TJB |
14275 | if (cond_string) |
14276 | b->cond_string = cond_string; | |
14277 | b->thread = thread; | |
14278 | b->task = task; | |
e7e0cddf | 14279 | if (extra_string) |
f00aae0f KS |
14280 | { |
14281 | xfree (b->extra_string); | |
14282 | b->extra_string = extra_string; | |
14283 | } | |
ef23e705 TJB |
14284 | b->condition_not_parsed = 0; |
14285 | } | |
14286 | ||
983af33b | 14287 | if (b->type == bp_static_tracepoint && !strace_marker_p (b)) |
ef23e705 | 14288 | sals.sals[0] = update_static_tracepoint (b, sals.sals[0]); |
ef23e705 | 14289 | |
58438ac1 TT |
14290 | *found = 1; |
14291 | } | |
14292 | else | |
14293 | *found = 0; | |
ef23e705 TJB |
14294 | |
14295 | return sals; | |
14296 | } | |
14297 | ||
348d480f PA |
14298 | /* The default re_set method, for typical hardware or software |
14299 | breakpoints. Reevaluate the breakpoint and recreate its | |
14300 | locations. */ | |
14301 | ||
14302 | static void | |
28010a5d | 14303 | breakpoint_re_set_default (struct breakpoint *b) |
ef23e705 TJB |
14304 | { |
14305 | int found; | |
f1310107 | 14306 | struct symtabs_and_lines sals, sals_end; |
ef23e705 | 14307 | struct symtabs_and_lines expanded = {0}; |
f1310107 | 14308 | struct symtabs_and_lines expanded_end = {0}; |
ef23e705 | 14309 | |
f00aae0f | 14310 | sals = location_to_sals (b, b->location, &found); |
ef23e705 TJB |
14311 | if (found) |
14312 | { | |
14313 | make_cleanup (xfree, sals.sals); | |
f8eba3c6 | 14314 | expanded = sals; |
ef23e705 TJB |
14315 | } |
14316 | ||
f00aae0f | 14317 | if (b->location_range_end != NULL) |
f1310107 | 14318 | { |
f00aae0f | 14319 | sals_end = location_to_sals (b, b->location_range_end, &found); |
f1310107 TJB |
14320 | if (found) |
14321 | { | |
14322 | make_cleanup (xfree, sals_end.sals); | |
f8eba3c6 | 14323 | expanded_end = sals_end; |
f1310107 TJB |
14324 | } |
14325 | } | |
14326 | ||
14327 | update_breakpoint_locations (b, expanded, expanded_end); | |
28010a5d PA |
14328 | } |
14329 | ||
983af33b SDJ |
14330 | /* Default method for creating SALs from an address string. It basically |
14331 | calls parse_breakpoint_sals. Return 1 for success, zero for failure. */ | |
14332 | ||
14333 | static void | |
f00aae0f KS |
14334 | create_sals_from_location_default (const struct event_location *location, |
14335 | struct linespec_result *canonical, | |
14336 | enum bptype type_wanted) | |
983af33b | 14337 | { |
f00aae0f | 14338 | parse_breakpoint_sals (location, canonical); |
983af33b SDJ |
14339 | } |
14340 | ||
14341 | /* Call create_breakpoints_sal for the given arguments. This is the default | |
14342 | function for the `create_breakpoints_sal' method of | |
14343 | breakpoint_ops. */ | |
14344 | ||
14345 | static void | |
14346 | create_breakpoints_sal_default (struct gdbarch *gdbarch, | |
14347 | struct linespec_result *canonical, | |
983af33b | 14348 | char *cond_string, |
e7e0cddf | 14349 | char *extra_string, |
983af33b SDJ |
14350 | enum bptype type_wanted, |
14351 | enum bpdisp disposition, | |
14352 | int thread, | |
14353 | int task, int ignore_count, | |
14354 | const struct breakpoint_ops *ops, | |
14355 | int from_tty, int enabled, | |
44f238bb | 14356 | int internal, unsigned flags) |
983af33b SDJ |
14357 | { |
14358 | create_breakpoints_sal (gdbarch, canonical, cond_string, | |
e7e0cddf | 14359 | extra_string, |
983af33b SDJ |
14360 | type_wanted, disposition, |
14361 | thread, task, ignore_count, ops, from_tty, | |
44f238bb | 14362 | enabled, internal, flags); |
983af33b SDJ |
14363 | } |
14364 | ||
14365 | /* Decode the line represented by S by calling decode_line_full. This is the | |
5f700d83 | 14366 | default function for the `decode_location' method of breakpoint_ops. */ |
983af33b SDJ |
14367 | |
14368 | static void | |
f00aae0f KS |
14369 | decode_location_default (struct breakpoint *b, |
14370 | const struct event_location *location, | |
983af33b SDJ |
14371 | struct symtabs_and_lines *sals) |
14372 | { | |
14373 | struct linespec_result canonical; | |
14374 | ||
14375 | init_linespec_result (&canonical); | |
f00aae0f | 14376 | decode_line_full (location, DECODE_LINE_FUNFIRSTLINE, |
983af33b SDJ |
14377 | (struct symtab *) NULL, 0, |
14378 | &canonical, multiple_symbols_all, | |
14379 | b->filter); | |
14380 | ||
14381 | /* We should get 0 or 1 resulting SALs. */ | |
14382 | gdb_assert (VEC_length (linespec_sals, canonical.sals) < 2); | |
14383 | ||
14384 | if (VEC_length (linespec_sals, canonical.sals) > 0) | |
14385 | { | |
14386 | struct linespec_sals *lsal; | |
14387 | ||
14388 | lsal = VEC_index (linespec_sals, canonical.sals, 0); | |
14389 | *sals = lsal->sals; | |
14390 | /* Arrange it so the destructor does not free the | |
14391 | contents. */ | |
14392 | lsal->sals.sals = NULL; | |
14393 | } | |
14394 | ||
14395 | destroy_linespec_result (&canonical); | |
14396 | } | |
14397 | ||
28010a5d PA |
14398 | /* Prepare the global context for a re-set of breakpoint B. */ |
14399 | ||
14400 | static struct cleanup * | |
14401 | prepare_re_set_context (struct breakpoint *b) | |
14402 | { | |
14403 | struct cleanup *cleanups; | |
14404 | ||
14405 | input_radix = b->input_radix; | |
14406 | cleanups = save_current_space_and_thread (); | |
f8eba3c6 TT |
14407 | if (b->pspace != NULL) |
14408 | switch_to_program_space_and_thread (b->pspace); | |
28010a5d PA |
14409 | set_language (b->language); |
14410 | ||
14411 | return cleanups; | |
ef23e705 TJB |
14412 | } |
14413 | ||
c906108c SS |
14414 | /* Reset a breakpoint given it's struct breakpoint * BINT. |
14415 | The value we return ends up being the return value from catch_errors. | |
14416 | Unused in this case. */ | |
14417 | ||
14418 | static int | |
4efb68b1 | 14419 | breakpoint_re_set_one (void *bint) |
c906108c | 14420 | { |
4a64f543 | 14421 | /* Get past catch_errs. */ |
53a5351d | 14422 | struct breakpoint *b = (struct breakpoint *) bint; |
348d480f | 14423 | struct cleanup *cleanups; |
c906108c | 14424 | |
348d480f PA |
14425 | cleanups = prepare_re_set_context (b); |
14426 | b->ops->re_set (b); | |
14427 | do_cleanups (cleanups); | |
c906108c SS |
14428 | return 0; |
14429 | } | |
14430 | ||
69de3c6a | 14431 | /* Re-set all breakpoints after symbols have been re-loaded. */ |
c906108c | 14432 | void |
69de3c6a | 14433 | breakpoint_re_set (void) |
c906108c | 14434 | { |
35df4500 | 14435 | struct breakpoint *b, *b_tmp; |
c906108c SS |
14436 | enum language save_language; |
14437 | int save_input_radix; | |
6c95b8df | 14438 | struct cleanup *old_chain; |
c5aa993b | 14439 | |
c906108c SS |
14440 | save_language = current_language->la_language; |
14441 | save_input_radix = input_radix; | |
6c95b8df PA |
14442 | old_chain = save_current_program_space (); |
14443 | ||
35df4500 | 14444 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 14445 | { |
4a64f543 | 14446 | /* Format possible error msg. */ |
fe3f5fa8 | 14447 | char *message = xstrprintf ("Error in re-setting breakpoint %d: ", |
9ebf4acf AC |
14448 | b->number); |
14449 | struct cleanup *cleanups = make_cleanup (xfree, message); | |
c5aa993b | 14450 | catch_errors (breakpoint_re_set_one, b, message, RETURN_MASK_ALL); |
9ebf4acf | 14451 | do_cleanups (cleanups); |
c5aa993b | 14452 | } |
c906108c SS |
14453 | set_language (save_language); |
14454 | input_radix = save_input_radix; | |
e62c965a | 14455 | |
0756c555 | 14456 | jit_breakpoint_re_set (); |
4efc6507 | 14457 | |
6c95b8df PA |
14458 | do_cleanups (old_chain); |
14459 | ||
af02033e PP |
14460 | create_overlay_event_breakpoint (); |
14461 | create_longjmp_master_breakpoint (); | |
14462 | create_std_terminate_master_breakpoint (); | |
186c406b | 14463 | create_exception_master_breakpoint (); |
c906108c SS |
14464 | } |
14465 | \f | |
c906108c SS |
14466 | /* Reset the thread number of this breakpoint: |
14467 | ||
14468 | - If the breakpoint is for all threads, leave it as-is. | |
4a64f543 | 14469 | - Else, reset it to the current thread for inferior_ptid. */ |
c906108c | 14470 | void |
fba45db2 | 14471 | breakpoint_re_set_thread (struct breakpoint *b) |
c906108c SS |
14472 | { |
14473 | if (b->thread != -1) | |
14474 | { | |
39f77062 KB |
14475 | if (in_thread_list (inferior_ptid)) |
14476 | b->thread = pid_to_thread_id (inferior_ptid); | |
6c95b8df PA |
14477 | |
14478 | /* We're being called after following a fork. The new fork is | |
14479 | selected as current, and unless this was a vfork will have a | |
14480 | different program space from the original thread. Reset that | |
14481 | as well. */ | |
14482 | b->loc->pspace = current_program_space; | |
c906108c SS |
14483 | } |
14484 | } | |
14485 | ||
03ac34d5 MS |
14486 | /* Set ignore-count of breakpoint number BPTNUM to COUNT. |
14487 | If from_tty is nonzero, it prints a message to that effect, | |
14488 | which ends with a period (no newline). */ | |
14489 | ||
c906108c | 14490 | void |
fba45db2 | 14491 | set_ignore_count (int bptnum, int count, int from_tty) |
c906108c | 14492 | { |
52f0bd74 | 14493 | struct breakpoint *b; |
c906108c SS |
14494 | |
14495 | if (count < 0) | |
14496 | count = 0; | |
14497 | ||
14498 | ALL_BREAKPOINTS (b) | |
14499 | if (b->number == bptnum) | |
c5aa993b | 14500 | { |
d77f58be SS |
14501 | if (is_tracepoint (b)) |
14502 | { | |
14503 | if (from_tty && count != 0) | |
14504 | printf_filtered (_("Ignore count ignored for tracepoint %d."), | |
14505 | bptnum); | |
14506 | return; | |
14507 | } | |
14508 | ||
c5aa993b | 14509 | b->ignore_count = count; |
221ea385 KS |
14510 | if (from_tty) |
14511 | { | |
14512 | if (count == 0) | |
3e43a32a MS |
14513 | printf_filtered (_("Will stop next time " |
14514 | "breakpoint %d is reached."), | |
221ea385 KS |
14515 | bptnum); |
14516 | else if (count == 1) | |
a3f17187 | 14517 | printf_filtered (_("Will ignore next crossing of breakpoint %d."), |
221ea385 KS |
14518 | bptnum); |
14519 | else | |
3e43a32a MS |
14520 | printf_filtered (_("Will ignore next %d " |
14521 | "crossings of breakpoint %d."), | |
221ea385 KS |
14522 | count, bptnum); |
14523 | } | |
8d3788bd | 14524 | observer_notify_breakpoint_modified (b); |
c5aa993b JM |
14525 | return; |
14526 | } | |
c906108c | 14527 | |
8a3fe4f8 | 14528 | error (_("No breakpoint number %d."), bptnum); |
c906108c SS |
14529 | } |
14530 | ||
c906108c SS |
14531 | /* Command to set ignore-count of breakpoint N to COUNT. */ |
14532 | ||
14533 | static void | |
fba45db2 | 14534 | ignore_command (char *args, int from_tty) |
c906108c SS |
14535 | { |
14536 | char *p = args; | |
52f0bd74 | 14537 | int num; |
c906108c SS |
14538 | |
14539 | if (p == 0) | |
e2e0b3e5 | 14540 | error_no_arg (_("a breakpoint number")); |
c5aa993b | 14541 | |
c906108c | 14542 | num = get_number (&p); |
5c44784c | 14543 | if (num == 0) |
8a3fe4f8 | 14544 | error (_("bad breakpoint number: '%s'"), args); |
c906108c | 14545 | if (*p == 0) |
8a3fe4f8 | 14546 | error (_("Second argument (specified ignore-count) is missing.")); |
c906108c SS |
14547 | |
14548 | set_ignore_count (num, | |
14549 | longest_to_int (value_as_long (parse_and_eval (p))), | |
14550 | from_tty); | |
221ea385 KS |
14551 | if (from_tty) |
14552 | printf_filtered ("\n"); | |
c906108c SS |
14553 | } |
14554 | \f | |
14555 | /* Call FUNCTION on each of the breakpoints | |
14556 | whose numbers are given in ARGS. */ | |
14557 | ||
14558 | static void | |
95a42b64 TT |
14559 | map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *, |
14560 | void *), | |
14561 | void *data) | |
c906108c | 14562 | { |
52f0bd74 AC |
14563 | int num; |
14564 | struct breakpoint *b, *tmp; | |
11cf8741 | 14565 | int match; |
197f0a60 | 14566 | struct get_number_or_range_state state; |
c906108c | 14567 | |
b9d61307 | 14568 | if (args == 0 || *args == '\0') |
e2e0b3e5 | 14569 | error_no_arg (_("one or more breakpoint numbers")); |
c906108c | 14570 | |
197f0a60 TT |
14571 | init_number_or_range (&state, args); |
14572 | ||
14573 | while (!state.finished) | |
c906108c | 14574 | { |
e799154c | 14575 | const char *p = state.string; |
197f0a60 | 14576 | |
11cf8741 | 14577 | match = 0; |
c5aa993b | 14578 | |
197f0a60 | 14579 | num = get_number_or_range (&state); |
5c44784c | 14580 | if (num == 0) |
c5aa993b | 14581 | { |
8a3fe4f8 | 14582 | warning (_("bad breakpoint number at or near '%s'"), p); |
5c44784c JM |
14583 | } |
14584 | else | |
14585 | { | |
14586 | ALL_BREAKPOINTS_SAFE (b, tmp) | |
14587 | if (b->number == num) | |
14588 | { | |
11cf8741 | 14589 | match = 1; |
cdac0397 | 14590 | function (b, data); |
11cf8741 | 14591 | break; |
5c44784c | 14592 | } |
11cf8741 | 14593 | if (match == 0) |
a3f17187 | 14594 | printf_unfiltered (_("No breakpoint number %d.\n"), num); |
c5aa993b | 14595 | } |
c906108c SS |
14596 | } |
14597 | } | |
14598 | ||
0d381245 VP |
14599 | static struct bp_location * |
14600 | find_location_by_number (char *number) | |
14601 | { | |
14602 | char *dot = strchr (number, '.'); | |
14603 | char *p1; | |
14604 | int bp_num; | |
14605 | int loc_num; | |
14606 | struct breakpoint *b; | |
14607 | struct bp_location *loc; | |
14608 | ||
14609 | *dot = '\0'; | |
14610 | ||
14611 | p1 = number; | |
197f0a60 | 14612 | bp_num = get_number (&p1); |
0d381245 VP |
14613 | if (bp_num == 0) |
14614 | error (_("Bad breakpoint number '%s'"), number); | |
14615 | ||
14616 | ALL_BREAKPOINTS (b) | |
14617 | if (b->number == bp_num) | |
14618 | { | |
14619 | break; | |
14620 | } | |
14621 | ||
14622 | if (!b || b->number != bp_num) | |
14623 | error (_("Bad breakpoint number '%s'"), number); | |
14624 | ||
14625 | p1 = dot+1; | |
197f0a60 | 14626 | loc_num = get_number (&p1); |
0d381245 VP |
14627 | if (loc_num == 0) |
14628 | error (_("Bad breakpoint location number '%s'"), number); | |
14629 | ||
14630 | --loc_num; | |
14631 | loc = b->loc; | |
14632 | for (;loc_num && loc; --loc_num, loc = loc->next) | |
14633 | ; | |
14634 | if (!loc) | |
14635 | error (_("Bad breakpoint location number '%s'"), dot+1); | |
14636 | ||
14637 | return loc; | |
14638 | } | |
14639 | ||
14640 | ||
1900040c MS |
14641 | /* Set ignore-count of breakpoint number BPTNUM to COUNT. |
14642 | If from_tty is nonzero, it prints a message to that effect, | |
14643 | which ends with a period (no newline). */ | |
14644 | ||
c906108c | 14645 | void |
fba45db2 | 14646 | disable_breakpoint (struct breakpoint *bpt) |
c906108c SS |
14647 | { |
14648 | /* Never disable a watchpoint scope breakpoint; we want to | |
14649 | hit them when we leave scope so we can delete both the | |
14650 | watchpoint and its scope breakpoint at that time. */ | |
14651 | if (bpt->type == bp_watchpoint_scope) | |
14652 | return; | |
14653 | ||
b5de0fa7 | 14654 | bpt->enable_state = bp_disabled; |
c906108c | 14655 | |
b775012e LM |
14656 | /* Mark breakpoint locations modified. */ |
14657 | mark_breakpoint_modified (bpt); | |
14658 | ||
d248b706 KY |
14659 | if (target_supports_enable_disable_tracepoint () |
14660 | && current_trace_status ()->running && is_tracepoint (bpt)) | |
14661 | { | |
14662 | struct bp_location *location; | |
14663 | ||
14664 | for (location = bpt->loc; location; location = location->next) | |
14665 | target_disable_tracepoint (location); | |
14666 | } | |
14667 | ||
44702360 | 14668 | update_global_location_list (UGLL_DONT_INSERT); |
c906108c | 14669 | |
8d3788bd | 14670 | observer_notify_breakpoint_modified (bpt); |
c906108c SS |
14671 | } |
14672 | ||
51be5b68 PA |
14673 | /* A callback for iterate_over_related_breakpoints. */ |
14674 | ||
14675 | static void | |
14676 | do_disable_breakpoint (struct breakpoint *b, void *ignore) | |
14677 | { | |
14678 | disable_breakpoint (b); | |
14679 | } | |
14680 | ||
95a42b64 TT |
14681 | /* A callback for map_breakpoint_numbers that calls |
14682 | disable_breakpoint. */ | |
14683 | ||
14684 | static void | |
14685 | do_map_disable_breakpoint (struct breakpoint *b, void *ignore) | |
14686 | { | |
51be5b68 | 14687 | iterate_over_related_breakpoints (b, do_disable_breakpoint, NULL); |
95a42b64 TT |
14688 | } |
14689 | ||
c906108c | 14690 | static void |
fba45db2 | 14691 | disable_command (char *args, int from_tty) |
c906108c | 14692 | { |
c906108c | 14693 | if (args == 0) |
46c6471b PA |
14694 | { |
14695 | struct breakpoint *bpt; | |
14696 | ||
14697 | ALL_BREAKPOINTS (bpt) | |
14698 | if (user_breakpoint_p (bpt)) | |
14699 | disable_breakpoint (bpt); | |
14700 | } | |
9eaabc75 | 14701 | else |
0d381245 | 14702 | { |
9eaabc75 MW |
14703 | char *num = extract_arg (&args); |
14704 | ||
14705 | while (num) | |
d248b706 | 14706 | { |
9eaabc75 | 14707 | if (strchr (num, '.')) |
b775012e | 14708 | { |
9eaabc75 MW |
14709 | struct bp_location *loc = find_location_by_number (num); |
14710 | ||
14711 | if (loc) | |
14712 | { | |
14713 | if (loc->enabled) | |
14714 | { | |
14715 | loc->enabled = 0; | |
14716 | mark_breakpoint_location_modified (loc); | |
14717 | } | |
14718 | if (target_supports_enable_disable_tracepoint () | |
14719 | && current_trace_status ()->running && loc->owner | |
14720 | && is_tracepoint (loc->owner)) | |
14721 | target_disable_tracepoint (loc); | |
14722 | } | |
44702360 | 14723 | update_global_location_list (UGLL_DONT_INSERT); |
b775012e | 14724 | } |
9eaabc75 MW |
14725 | else |
14726 | map_breakpoint_numbers (num, do_map_disable_breakpoint, NULL); | |
14727 | num = extract_arg (&args); | |
d248b706 | 14728 | } |
0d381245 | 14729 | } |
c906108c SS |
14730 | } |
14731 | ||
14732 | static void | |
816338b5 SS |
14733 | enable_breakpoint_disp (struct breakpoint *bpt, enum bpdisp disposition, |
14734 | int count) | |
c906108c | 14735 | { |
afe38095 | 14736 | int target_resources_ok; |
c906108c SS |
14737 | |
14738 | if (bpt->type == bp_hardware_breakpoint) | |
14739 | { | |
14740 | int i; | |
c5aa993b | 14741 | i = hw_breakpoint_used_count (); |
53a5351d | 14742 | target_resources_ok = |
d92524f1 | 14743 | target_can_use_hardware_watchpoint (bp_hardware_breakpoint, |
53a5351d | 14744 | i + 1, 0); |
c906108c | 14745 | if (target_resources_ok == 0) |
8a3fe4f8 | 14746 | error (_("No hardware breakpoint support in the target.")); |
c906108c | 14747 | else if (target_resources_ok < 0) |
8a3fe4f8 | 14748 | error (_("Hardware breakpoints used exceeds limit.")); |
c906108c SS |
14749 | } |
14750 | ||
cc60f2e3 | 14751 | if (is_watchpoint (bpt)) |
c906108c | 14752 | { |
d07205c2 | 14753 | /* Initialize it just to avoid a GCC false warning. */ |
f486487f | 14754 | enum enable_state orig_enable_state = bp_disabled; |
dde02812 | 14755 | |
492d29ea | 14756 | TRY |
c906108c | 14757 | { |
3a5c3e22 PA |
14758 | struct watchpoint *w = (struct watchpoint *) bpt; |
14759 | ||
1e718ff1 TJB |
14760 | orig_enable_state = bpt->enable_state; |
14761 | bpt->enable_state = bp_enabled; | |
3a5c3e22 | 14762 | update_watchpoint (w, 1 /* reparse */); |
c906108c | 14763 | } |
492d29ea | 14764 | CATCH (e, RETURN_MASK_ALL) |
c5aa993b | 14765 | { |
1e718ff1 | 14766 | bpt->enable_state = orig_enable_state; |
dde02812 ES |
14767 | exception_fprintf (gdb_stderr, e, _("Cannot enable watchpoint %d: "), |
14768 | bpt->number); | |
14769 | return; | |
c5aa993b | 14770 | } |
492d29ea | 14771 | END_CATCH |
c906108c | 14772 | } |
0101ce28 | 14773 | |
b775012e LM |
14774 | bpt->enable_state = bp_enabled; |
14775 | ||
14776 | /* Mark breakpoint locations modified. */ | |
14777 | mark_breakpoint_modified (bpt); | |
14778 | ||
d248b706 KY |
14779 | if (target_supports_enable_disable_tracepoint () |
14780 | && current_trace_status ()->running && is_tracepoint (bpt)) | |
14781 | { | |
14782 | struct bp_location *location; | |
14783 | ||
14784 | for (location = bpt->loc; location; location = location->next) | |
14785 | target_enable_tracepoint (location); | |
14786 | } | |
14787 | ||
b4c291bb | 14788 | bpt->disposition = disposition; |
816338b5 | 14789 | bpt->enable_count = count; |
44702360 | 14790 | update_global_location_list (UGLL_MAY_INSERT); |
9c97429f | 14791 | |
8d3788bd | 14792 | observer_notify_breakpoint_modified (bpt); |
c906108c SS |
14793 | } |
14794 | ||
fe3f5fa8 | 14795 | |
c906108c | 14796 | void |
fba45db2 | 14797 | enable_breakpoint (struct breakpoint *bpt) |
c906108c | 14798 | { |
816338b5 | 14799 | enable_breakpoint_disp (bpt, bpt->disposition, 0); |
51be5b68 PA |
14800 | } |
14801 | ||
14802 | static void | |
14803 | do_enable_breakpoint (struct breakpoint *bpt, void *arg) | |
14804 | { | |
14805 | enable_breakpoint (bpt); | |
c906108c SS |
14806 | } |
14807 | ||
95a42b64 TT |
14808 | /* A callback for map_breakpoint_numbers that calls |
14809 | enable_breakpoint. */ | |
14810 | ||
14811 | static void | |
14812 | do_map_enable_breakpoint (struct breakpoint *b, void *ignore) | |
14813 | { | |
51be5b68 | 14814 | iterate_over_related_breakpoints (b, do_enable_breakpoint, NULL); |
95a42b64 TT |
14815 | } |
14816 | ||
c906108c SS |
14817 | /* The enable command enables the specified breakpoints (or all defined |
14818 | breakpoints) so they once again become (or continue to be) effective | |
1272ad14 | 14819 | in stopping the inferior. */ |
c906108c | 14820 | |
c906108c | 14821 | static void |
fba45db2 | 14822 | enable_command (char *args, int from_tty) |
c906108c | 14823 | { |
c906108c | 14824 | if (args == 0) |
46c6471b PA |
14825 | { |
14826 | struct breakpoint *bpt; | |
14827 | ||
14828 | ALL_BREAKPOINTS (bpt) | |
14829 | if (user_breakpoint_p (bpt)) | |
14830 | enable_breakpoint (bpt); | |
14831 | } | |
9eaabc75 | 14832 | else |
0d381245 | 14833 | { |
9eaabc75 MW |
14834 | char *num = extract_arg (&args); |
14835 | ||
14836 | while (num) | |
d248b706 | 14837 | { |
9eaabc75 | 14838 | if (strchr (num, '.')) |
b775012e | 14839 | { |
9eaabc75 MW |
14840 | struct bp_location *loc = find_location_by_number (num); |
14841 | ||
14842 | if (loc) | |
14843 | { | |
14844 | if (!loc->enabled) | |
14845 | { | |
14846 | loc->enabled = 1; | |
14847 | mark_breakpoint_location_modified (loc); | |
14848 | } | |
14849 | if (target_supports_enable_disable_tracepoint () | |
14850 | && current_trace_status ()->running && loc->owner | |
14851 | && is_tracepoint (loc->owner)) | |
14852 | target_enable_tracepoint (loc); | |
14853 | } | |
44702360 | 14854 | update_global_location_list (UGLL_MAY_INSERT); |
b775012e | 14855 | } |
9eaabc75 MW |
14856 | else |
14857 | map_breakpoint_numbers (num, do_map_enable_breakpoint, NULL); | |
14858 | num = extract_arg (&args); | |
d248b706 | 14859 | } |
0d381245 | 14860 | } |
c906108c SS |
14861 | } |
14862 | ||
816338b5 SS |
14863 | /* This struct packages up disposition data for application to multiple |
14864 | breakpoints. */ | |
14865 | ||
14866 | struct disp_data | |
14867 | { | |
14868 | enum bpdisp disp; | |
14869 | int count; | |
14870 | }; | |
14871 | ||
c906108c | 14872 | static void |
51be5b68 PA |
14873 | do_enable_breakpoint_disp (struct breakpoint *bpt, void *arg) |
14874 | { | |
816338b5 | 14875 | struct disp_data disp_data = *(struct disp_data *) arg; |
51be5b68 | 14876 | |
816338b5 | 14877 | enable_breakpoint_disp (bpt, disp_data.disp, disp_data.count); |
51be5b68 PA |
14878 | } |
14879 | ||
14880 | static void | |
14881 | do_map_enable_once_breakpoint (struct breakpoint *bpt, void *ignore) | |
c906108c | 14882 | { |
816338b5 | 14883 | struct disp_data disp = { disp_disable, 1 }; |
51be5b68 PA |
14884 | |
14885 | iterate_over_related_breakpoints (bpt, do_enable_breakpoint_disp, &disp); | |
c906108c SS |
14886 | } |
14887 | ||
c906108c | 14888 | static void |
fba45db2 | 14889 | enable_once_command (char *args, int from_tty) |
c906108c | 14890 | { |
51be5b68 | 14891 | map_breakpoint_numbers (args, do_map_enable_once_breakpoint, NULL); |
c906108c SS |
14892 | } |
14893 | ||
816338b5 SS |
14894 | static void |
14895 | do_map_enable_count_breakpoint (struct breakpoint *bpt, void *countptr) | |
14896 | { | |
14897 | struct disp_data disp = { disp_disable, *(int *) countptr }; | |
14898 | ||
14899 | iterate_over_related_breakpoints (bpt, do_enable_breakpoint_disp, &disp); | |
14900 | } | |
14901 | ||
14902 | static void | |
14903 | enable_count_command (char *args, int from_tty) | |
14904 | { | |
b9d61307 SM |
14905 | int count; |
14906 | ||
14907 | if (args == NULL) | |
14908 | error_no_arg (_("hit count")); | |
14909 | ||
14910 | count = get_number (&args); | |
816338b5 SS |
14911 | |
14912 | map_breakpoint_numbers (args, do_map_enable_count_breakpoint, &count); | |
14913 | } | |
14914 | ||
c906108c | 14915 | static void |
51be5b68 | 14916 | do_map_enable_delete_breakpoint (struct breakpoint *bpt, void *ignore) |
c906108c | 14917 | { |
816338b5 | 14918 | struct disp_data disp = { disp_del, 1 }; |
51be5b68 PA |
14919 | |
14920 | iterate_over_related_breakpoints (bpt, do_enable_breakpoint_disp, &disp); | |
c906108c SS |
14921 | } |
14922 | ||
c906108c | 14923 | static void |
fba45db2 | 14924 | enable_delete_command (char *args, int from_tty) |
c906108c | 14925 | { |
51be5b68 | 14926 | map_breakpoint_numbers (args, do_map_enable_delete_breakpoint, NULL); |
c906108c SS |
14927 | } |
14928 | \f | |
fa8d40ab JJ |
14929 | static void |
14930 | set_breakpoint_cmd (char *args, int from_tty) | |
14931 | { | |
14932 | } | |
14933 | ||
14934 | static void | |
14935 | show_breakpoint_cmd (char *args, int from_tty) | |
14936 | { | |
14937 | } | |
14938 | ||
1f3b5d1b PP |
14939 | /* Invalidate last known value of any hardware watchpoint if |
14940 | the memory which that value represents has been written to by | |
14941 | GDB itself. */ | |
14942 | ||
14943 | static void | |
8de0566d YQ |
14944 | invalidate_bp_value_on_memory_change (struct inferior *inferior, |
14945 | CORE_ADDR addr, ssize_t len, | |
1f3b5d1b PP |
14946 | const bfd_byte *data) |
14947 | { | |
14948 | struct breakpoint *bp; | |
14949 | ||
14950 | ALL_BREAKPOINTS (bp) | |
14951 | if (bp->enable_state == bp_enabled | |
3a5c3e22 | 14952 | && bp->type == bp_hardware_watchpoint) |
1f3b5d1b | 14953 | { |
3a5c3e22 | 14954 | struct watchpoint *wp = (struct watchpoint *) bp; |
1f3b5d1b | 14955 | |
3a5c3e22 PA |
14956 | if (wp->val_valid && wp->val) |
14957 | { | |
14958 | struct bp_location *loc; | |
14959 | ||
14960 | for (loc = bp->loc; loc != NULL; loc = loc->next) | |
14961 | if (loc->loc_type == bp_loc_hardware_watchpoint | |
14962 | && loc->address + loc->length > addr | |
14963 | && addr + len > loc->address) | |
14964 | { | |
14965 | value_free (wp->val); | |
14966 | wp->val = NULL; | |
14967 | wp->val_valid = 0; | |
14968 | } | |
14969 | } | |
1f3b5d1b PP |
14970 | } |
14971 | } | |
14972 | ||
8181d85f DJ |
14973 | /* Create and insert a breakpoint for software single step. */ |
14974 | ||
14975 | void | |
6c95b8df | 14976 | insert_single_step_breakpoint (struct gdbarch *gdbarch, |
4a64f543 MS |
14977 | struct address_space *aspace, |
14978 | CORE_ADDR next_pc) | |
8181d85f | 14979 | { |
7c16b83e PA |
14980 | struct thread_info *tp = inferior_thread (); |
14981 | struct symtab_and_line sal; | |
14982 | CORE_ADDR pc = next_pc; | |
8181d85f | 14983 | |
34b7e8a6 PA |
14984 | if (tp->control.single_step_breakpoints == NULL) |
14985 | { | |
14986 | tp->control.single_step_breakpoints | |
14987 | = new_single_step_breakpoint (tp->num, gdbarch); | |
14988 | } | |
8181d85f | 14989 | |
7c16b83e PA |
14990 | sal = find_pc_line (pc, 0); |
14991 | sal.pc = pc; | |
14992 | sal.section = find_pc_overlay (pc); | |
14993 | sal.explicit_pc = 1; | |
34b7e8a6 | 14994 | add_location_to_breakpoint (tp->control.single_step_breakpoints, &sal); |
8181d85f | 14995 | |
7c16b83e | 14996 | update_global_location_list (UGLL_INSERT); |
8181d85f DJ |
14997 | } |
14998 | ||
34b7e8a6 | 14999 | /* See breakpoint.h. */ |
f02253f1 HZ |
15000 | |
15001 | int | |
7c16b83e PA |
15002 | breakpoint_has_location_inserted_here (struct breakpoint *bp, |
15003 | struct address_space *aspace, | |
15004 | CORE_ADDR pc) | |
1aafd4da | 15005 | { |
7c16b83e | 15006 | struct bp_location *loc; |
1aafd4da | 15007 | |
7c16b83e PA |
15008 | for (loc = bp->loc; loc != NULL; loc = loc->next) |
15009 | if (loc->inserted | |
15010 | && breakpoint_location_address_match (loc, aspace, pc)) | |
15011 | return 1; | |
1aafd4da | 15012 | |
7c16b83e | 15013 | return 0; |
ef370185 JB |
15014 | } |
15015 | ||
15016 | /* Check whether a software single-step breakpoint is inserted at | |
15017 | PC. */ | |
15018 | ||
15019 | int | |
15020 | single_step_breakpoint_inserted_here_p (struct address_space *aspace, | |
15021 | CORE_ADDR pc) | |
15022 | { | |
34b7e8a6 PA |
15023 | struct breakpoint *bpt; |
15024 | ||
15025 | ALL_BREAKPOINTS (bpt) | |
15026 | { | |
15027 | if (bpt->type == bp_single_step | |
15028 | && breakpoint_has_location_inserted_here (bpt, aspace, pc)) | |
15029 | return 1; | |
15030 | } | |
15031 | return 0; | |
1aafd4da UW |
15032 | } |
15033 | ||
1042e4c0 SS |
15034 | /* Tracepoint-specific operations. */ |
15035 | ||
15036 | /* Set tracepoint count to NUM. */ | |
15037 | static void | |
15038 | set_tracepoint_count (int num) | |
15039 | { | |
15040 | tracepoint_count = num; | |
4fa62494 | 15041 | set_internalvar_integer (lookup_internalvar ("tpnum"), num); |
1042e4c0 SS |
15042 | } |
15043 | ||
70221824 | 15044 | static void |
1042e4c0 SS |
15045 | trace_command (char *arg, int from_tty) |
15046 | { | |
55aa24fb | 15047 | struct breakpoint_ops *ops; |
f00aae0f KS |
15048 | struct event_location *location; |
15049 | struct cleanup *back_to; | |
55aa24fb | 15050 | |
f00aae0f KS |
15051 | location = string_to_event_location (&arg, current_language); |
15052 | back_to = make_cleanup_delete_event_location (location); | |
5b56227b KS |
15053 | if (location != NULL |
15054 | && event_location_type (location) == PROBE_LOCATION) | |
55aa24fb SDJ |
15055 | ops = &tracepoint_probe_breakpoint_ops; |
15056 | else | |
15057 | ops = &tracepoint_breakpoint_ops; | |
15058 | ||
558a9d82 | 15059 | create_breakpoint (get_current_arch (), |
f00aae0f KS |
15060 | location, |
15061 | NULL, 0, arg, 1 /* parse arg */, | |
558a9d82 YQ |
15062 | 0 /* tempflag */, |
15063 | bp_tracepoint /* type_wanted */, | |
15064 | 0 /* Ignore count */, | |
15065 | pending_break_support, | |
15066 | ops, | |
15067 | from_tty, | |
15068 | 1 /* enabled */, | |
15069 | 0 /* internal */, 0); | |
f00aae0f | 15070 | do_cleanups (back_to); |
1042e4c0 SS |
15071 | } |
15072 | ||
70221824 | 15073 | static void |
7a697b8d SS |
15074 | ftrace_command (char *arg, int from_tty) |
15075 | { | |
f00aae0f KS |
15076 | struct event_location *location; |
15077 | struct cleanup *back_to; | |
15078 | ||
15079 | location = string_to_event_location (&arg, current_language); | |
15080 | back_to = make_cleanup_delete_event_location (location); | |
558a9d82 | 15081 | create_breakpoint (get_current_arch (), |
f00aae0f KS |
15082 | location, |
15083 | NULL, 0, arg, 1 /* parse arg */, | |
558a9d82 YQ |
15084 | 0 /* tempflag */, |
15085 | bp_fast_tracepoint /* type_wanted */, | |
15086 | 0 /* Ignore count */, | |
15087 | pending_break_support, | |
15088 | &tracepoint_breakpoint_ops, | |
15089 | from_tty, | |
15090 | 1 /* enabled */, | |
15091 | 0 /* internal */, 0); | |
f00aae0f | 15092 | do_cleanups (back_to); |
0fb4aa4b PA |
15093 | } |
15094 | ||
15095 | /* strace command implementation. Creates a static tracepoint. */ | |
15096 | ||
70221824 | 15097 | static void |
0fb4aa4b PA |
15098 | strace_command (char *arg, int from_tty) |
15099 | { | |
983af33b | 15100 | struct breakpoint_ops *ops; |
f00aae0f KS |
15101 | struct event_location *location; |
15102 | struct cleanup *back_to; | |
983af33b SDJ |
15103 | |
15104 | /* Decide if we are dealing with a static tracepoint marker (`-m'), | |
15105 | or with a normal static tracepoint. */ | |
61012eef | 15106 | if (arg && startswith (arg, "-m") && isspace (arg[2])) |
f00aae0f KS |
15107 | { |
15108 | ops = &strace_marker_breakpoint_ops; | |
15109 | location = new_linespec_location (&arg); | |
15110 | } | |
983af33b | 15111 | else |
f00aae0f KS |
15112 | { |
15113 | ops = &tracepoint_breakpoint_ops; | |
15114 | location = string_to_event_location (&arg, current_language); | |
15115 | } | |
983af33b | 15116 | |
f00aae0f | 15117 | back_to = make_cleanup_delete_event_location (location); |
558a9d82 | 15118 | create_breakpoint (get_current_arch (), |
f00aae0f KS |
15119 | location, |
15120 | NULL, 0, arg, 1 /* parse arg */, | |
558a9d82 YQ |
15121 | 0 /* tempflag */, |
15122 | bp_static_tracepoint /* type_wanted */, | |
15123 | 0 /* Ignore count */, | |
15124 | pending_break_support, | |
15125 | ops, | |
15126 | from_tty, | |
15127 | 1 /* enabled */, | |
15128 | 0 /* internal */, 0); | |
f00aae0f | 15129 | do_cleanups (back_to); |
7a697b8d SS |
15130 | } |
15131 | ||
409873ef SS |
15132 | /* Set up a fake reader function that gets command lines from a linked |
15133 | list that was acquired during tracepoint uploading. */ | |
15134 | ||
15135 | static struct uploaded_tp *this_utp; | |
3149d8c1 | 15136 | static int next_cmd; |
409873ef SS |
15137 | |
15138 | static char * | |
15139 | read_uploaded_action (void) | |
15140 | { | |
15141 | char *rslt; | |
15142 | ||
3149d8c1 | 15143 | VEC_iterate (char_ptr, this_utp->cmd_strings, next_cmd, rslt); |
409873ef | 15144 | |
3149d8c1 | 15145 | next_cmd++; |
409873ef SS |
15146 | |
15147 | return rslt; | |
15148 | } | |
15149 | ||
00bf0b85 SS |
15150 | /* Given information about a tracepoint as recorded on a target (which |
15151 | can be either a live system or a trace file), attempt to create an | |
15152 | equivalent GDB tracepoint. This is not a reliable process, since | |
15153 | the target does not necessarily have all the information used when | |
15154 | the tracepoint was originally defined. */ | |
15155 | ||
d9b3f62e | 15156 | struct tracepoint * |
00bf0b85 | 15157 | create_tracepoint_from_upload (struct uploaded_tp *utp) |
d5551862 | 15158 | { |
409873ef | 15159 | char *addr_str, small_buf[100]; |
d9b3f62e | 15160 | struct tracepoint *tp; |
f00aae0f KS |
15161 | struct event_location *location; |
15162 | struct cleanup *cleanup; | |
fd9b8c24 | 15163 | |
409873ef SS |
15164 | if (utp->at_string) |
15165 | addr_str = utp->at_string; | |
15166 | else | |
15167 | { | |
15168 | /* In the absence of a source location, fall back to raw | |
15169 | address. Since there is no way to confirm that the address | |
15170 | means the same thing as when the trace was started, warn the | |
15171 | user. */ | |
3e43a32a MS |
15172 | warning (_("Uploaded tracepoint %d has no " |
15173 | "source location, using raw address"), | |
409873ef | 15174 | utp->number); |
8c042590 | 15175 | xsnprintf (small_buf, sizeof (small_buf), "*%s", hex_string (utp->addr)); |
409873ef SS |
15176 | addr_str = small_buf; |
15177 | } | |
15178 | ||
15179 | /* There's not much we can do with a sequence of bytecodes. */ | |
15180 | if (utp->cond && !utp->cond_string) | |
3e43a32a MS |
15181 | warning (_("Uploaded tracepoint %d condition " |
15182 | "has no source form, ignoring it"), | |
409873ef | 15183 | utp->number); |
d5551862 | 15184 | |
f00aae0f KS |
15185 | location = string_to_event_location (&addr_str, current_language); |
15186 | cleanup = make_cleanup_delete_event_location (location); | |
8cdf0e15 | 15187 | if (!create_breakpoint (get_current_arch (), |
f00aae0f KS |
15188 | location, |
15189 | utp->cond_string, -1, addr_str, | |
e7e0cddf | 15190 | 0 /* parse cond/thread */, |
8cdf0e15 | 15191 | 0 /* tempflag */, |
0fb4aa4b | 15192 | utp->type /* type_wanted */, |
8cdf0e15 VP |
15193 | 0 /* Ignore count */, |
15194 | pending_break_support, | |
348d480f | 15195 | &tracepoint_breakpoint_ops, |
8cdf0e15 | 15196 | 0 /* from_tty */, |
84f4c1fe | 15197 | utp->enabled /* enabled */, |
44f238bb PA |
15198 | 0 /* internal */, |
15199 | CREATE_BREAKPOINT_FLAGS_INSERTED)) | |
f00aae0f KS |
15200 | { |
15201 | do_cleanups (cleanup); | |
15202 | return NULL; | |
15203 | } | |
15204 | ||
15205 | do_cleanups (cleanup); | |
fd9b8c24 | 15206 | |
409873ef | 15207 | /* Get the tracepoint we just created. */ |
fd9b8c24 PA |
15208 | tp = get_tracepoint (tracepoint_count); |
15209 | gdb_assert (tp != NULL); | |
d5551862 | 15210 | |
00bf0b85 SS |
15211 | if (utp->pass > 0) |
15212 | { | |
8c042590 PM |
15213 | xsnprintf (small_buf, sizeof (small_buf), "%d %d", utp->pass, |
15214 | tp->base.number); | |
00bf0b85 | 15215 | |
409873ef | 15216 | trace_pass_command (small_buf, 0); |
00bf0b85 SS |
15217 | } |
15218 | ||
409873ef SS |
15219 | /* If we have uploaded versions of the original commands, set up a |
15220 | special-purpose "reader" function and call the usual command line | |
15221 | reader, then pass the result to the breakpoint command-setting | |
15222 | function. */ | |
3149d8c1 | 15223 | if (!VEC_empty (char_ptr, utp->cmd_strings)) |
00bf0b85 | 15224 | { |
409873ef | 15225 | struct command_line *cmd_list; |
00bf0b85 | 15226 | |
409873ef | 15227 | this_utp = utp; |
3149d8c1 | 15228 | next_cmd = 0; |
d5551862 | 15229 | |
409873ef SS |
15230 | cmd_list = read_command_lines_1 (read_uploaded_action, 1, NULL, NULL); |
15231 | ||
d9b3f62e | 15232 | breakpoint_set_commands (&tp->base, cmd_list); |
00bf0b85 | 15233 | } |
3149d8c1 SS |
15234 | else if (!VEC_empty (char_ptr, utp->actions) |
15235 | || !VEC_empty (char_ptr, utp->step_actions)) | |
3e43a32a MS |
15236 | warning (_("Uploaded tracepoint %d actions " |
15237 | "have no source form, ignoring them"), | |
409873ef | 15238 | utp->number); |
00bf0b85 | 15239 | |
f196051f SS |
15240 | /* Copy any status information that might be available. */ |
15241 | tp->base.hit_count = utp->hit_count; | |
15242 | tp->traceframe_usage = utp->traceframe_usage; | |
15243 | ||
00bf0b85 | 15244 | return tp; |
d9b3f62e | 15245 | } |
00bf0b85 | 15246 | |
1042e4c0 SS |
15247 | /* Print information on tracepoint number TPNUM_EXP, or all if |
15248 | omitted. */ | |
15249 | ||
15250 | static void | |
e5a67952 | 15251 | tracepoints_info (char *args, int from_tty) |
1042e4c0 | 15252 | { |
79a45e25 | 15253 | struct ui_out *uiout = current_uiout; |
e5a67952 | 15254 | int num_printed; |
1042e4c0 | 15255 | |
e5a67952 | 15256 | num_printed = breakpoint_1 (args, 0, is_tracepoint); |
d77f58be SS |
15257 | |
15258 | if (num_printed == 0) | |
1042e4c0 | 15259 | { |
e5a67952 | 15260 | if (args == NULL || *args == '\0') |
d77f58be SS |
15261 | ui_out_message (uiout, 0, "No tracepoints.\n"); |
15262 | else | |
e5a67952 | 15263 | ui_out_message (uiout, 0, "No tracepoint matching '%s'.\n", args); |
1042e4c0 | 15264 | } |
ad443146 SS |
15265 | |
15266 | default_collect_info (); | |
1042e4c0 SS |
15267 | } |
15268 | ||
4a64f543 | 15269 | /* The 'enable trace' command enables tracepoints. |
1042e4c0 SS |
15270 | Not supported by all targets. */ |
15271 | static void | |
15272 | enable_trace_command (char *args, int from_tty) | |
15273 | { | |
15274 | enable_command (args, from_tty); | |
15275 | } | |
15276 | ||
4a64f543 | 15277 | /* The 'disable trace' command disables tracepoints. |
1042e4c0 SS |
15278 | Not supported by all targets. */ |
15279 | static void | |
15280 | disable_trace_command (char *args, int from_tty) | |
15281 | { | |
15282 | disable_command (args, from_tty); | |
15283 | } | |
15284 | ||
4a64f543 | 15285 | /* Remove a tracepoint (or all if no argument). */ |
1042e4c0 SS |
15286 | static void |
15287 | delete_trace_command (char *arg, int from_tty) | |
15288 | { | |
35df4500 | 15289 | struct breakpoint *b, *b_tmp; |
1042e4c0 SS |
15290 | |
15291 | dont_repeat (); | |
15292 | ||
15293 | if (arg == 0) | |
15294 | { | |
15295 | int breaks_to_delete = 0; | |
15296 | ||
15297 | /* Delete all breakpoints if no argument. | |
15298 | Do not delete internal or call-dummy breakpoints, these | |
4a64f543 MS |
15299 | have to be deleted with an explicit breakpoint number |
15300 | argument. */ | |
1042e4c0 | 15301 | ALL_TRACEPOINTS (b) |
46c6471b | 15302 | if (is_tracepoint (b) && user_breakpoint_p (b)) |
1042e4c0 SS |
15303 | { |
15304 | breaks_to_delete = 1; | |
15305 | break; | |
15306 | } | |
1042e4c0 SS |
15307 | |
15308 | /* Ask user only if there are some breakpoints to delete. */ | |
15309 | if (!from_tty | |
15310 | || (breaks_to_delete && query (_("Delete all tracepoints? ")))) | |
15311 | { | |
35df4500 | 15312 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
46c6471b | 15313 | if (is_tracepoint (b) && user_breakpoint_p (b)) |
1042e4c0 | 15314 | delete_breakpoint (b); |
1042e4c0 SS |
15315 | } |
15316 | } | |
15317 | else | |
51be5b68 | 15318 | map_breakpoint_numbers (arg, do_map_delete_breakpoint, NULL); |
1042e4c0 SS |
15319 | } |
15320 | ||
197f0a60 TT |
15321 | /* Helper function for trace_pass_command. */ |
15322 | ||
15323 | static void | |
d9b3f62e | 15324 | trace_pass_set_count (struct tracepoint *tp, int count, int from_tty) |
197f0a60 | 15325 | { |
d9b3f62e | 15326 | tp->pass_count = count; |
6f6484cd | 15327 | observer_notify_breakpoint_modified (&tp->base); |
197f0a60 TT |
15328 | if (from_tty) |
15329 | printf_filtered (_("Setting tracepoint %d's passcount to %d\n"), | |
d9b3f62e | 15330 | tp->base.number, count); |
197f0a60 TT |
15331 | } |
15332 | ||
1042e4c0 SS |
15333 | /* Set passcount for tracepoint. |
15334 | ||
15335 | First command argument is passcount, second is tracepoint number. | |
15336 | If tracepoint number omitted, apply to most recently defined. | |
15337 | Also accepts special argument "all". */ | |
15338 | ||
15339 | static void | |
15340 | trace_pass_command (char *args, int from_tty) | |
15341 | { | |
d9b3f62e | 15342 | struct tracepoint *t1; |
1042e4c0 | 15343 | unsigned int count; |
1042e4c0 SS |
15344 | |
15345 | if (args == 0 || *args == 0) | |
3e43a32a MS |
15346 | error (_("passcount command requires an " |
15347 | "argument (count + optional TP num)")); | |
1042e4c0 | 15348 | |
4a64f543 | 15349 | count = strtoul (args, &args, 10); /* Count comes first, then TP num. */ |
1042e4c0 | 15350 | |
529480d0 | 15351 | args = skip_spaces (args); |
1042e4c0 SS |
15352 | if (*args && strncasecmp (args, "all", 3) == 0) |
15353 | { | |
d9b3f62e PA |
15354 | struct breakpoint *b; |
15355 | ||
1042e4c0 | 15356 | args += 3; /* Skip special argument "all". */ |
1042e4c0 SS |
15357 | if (*args) |
15358 | error (_("Junk at end of arguments.")); | |
1042e4c0 | 15359 | |
d9b3f62e | 15360 | ALL_TRACEPOINTS (b) |
197f0a60 | 15361 | { |
d9b3f62e | 15362 | t1 = (struct tracepoint *) b; |
197f0a60 TT |
15363 | trace_pass_set_count (t1, count, from_tty); |
15364 | } | |
15365 | } | |
15366 | else if (*args == '\0') | |
1042e4c0 | 15367 | { |
5fa1d40e | 15368 | t1 = get_tracepoint_by_number (&args, NULL); |
1042e4c0 | 15369 | if (t1) |
197f0a60 TT |
15370 | trace_pass_set_count (t1, count, from_tty); |
15371 | } | |
15372 | else | |
15373 | { | |
15374 | struct get_number_or_range_state state; | |
15375 | ||
15376 | init_number_or_range (&state, args); | |
15377 | while (!state.finished) | |
1042e4c0 | 15378 | { |
5fa1d40e | 15379 | t1 = get_tracepoint_by_number (&args, &state); |
197f0a60 TT |
15380 | if (t1) |
15381 | trace_pass_set_count (t1, count, from_tty); | |
1042e4c0 SS |
15382 | } |
15383 | } | |
1042e4c0 SS |
15384 | } |
15385 | ||
d9b3f62e | 15386 | struct tracepoint * |
1042e4c0 SS |
15387 | get_tracepoint (int num) |
15388 | { | |
15389 | struct breakpoint *t; | |
15390 | ||
15391 | ALL_TRACEPOINTS (t) | |
15392 | if (t->number == num) | |
d9b3f62e | 15393 | return (struct tracepoint *) t; |
1042e4c0 SS |
15394 | |
15395 | return NULL; | |
15396 | } | |
15397 | ||
d5551862 SS |
15398 | /* Find the tracepoint with the given target-side number (which may be |
15399 | different from the tracepoint number after disconnecting and | |
15400 | reconnecting). */ | |
15401 | ||
d9b3f62e | 15402 | struct tracepoint * |
d5551862 SS |
15403 | get_tracepoint_by_number_on_target (int num) |
15404 | { | |
d9b3f62e | 15405 | struct breakpoint *b; |
d5551862 | 15406 | |
d9b3f62e PA |
15407 | ALL_TRACEPOINTS (b) |
15408 | { | |
15409 | struct tracepoint *t = (struct tracepoint *) b; | |
15410 | ||
15411 | if (t->number_on_target == num) | |
15412 | return t; | |
15413 | } | |
d5551862 SS |
15414 | |
15415 | return NULL; | |
15416 | } | |
15417 | ||
1042e4c0 | 15418 | /* Utility: parse a tracepoint number and look it up in the list. |
197f0a60 | 15419 | If STATE is not NULL, use, get_number_or_range_state and ignore ARG. |
5fa1d40e YQ |
15420 | If the argument is missing, the most recent tracepoint |
15421 | (tracepoint_count) is returned. */ | |
15422 | ||
d9b3f62e | 15423 | struct tracepoint * |
197f0a60 | 15424 | get_tracepoint_by_number (char **arg, |
5fa1d40e | 15425 | struct get_number_or_range_state *state) |
1042e4c0 | 15426 | { |
1042e4c0 SS |
15427 | struct breakpoint *t; |
15428 | int tpnum; | |
15429 | char *instring = arg == NULL ? NULL : *arg; | |
15430 | ||
197f0a60 TT |
15431 | if (state) |
15432 | { | |
15433 | gdb_assert (!state->finished); | |
15434 | tpnum = get_number_or_range (state); | |
15435 | } | |
15436 | else if (arg == NULL || *arg == NULL || ! **arg) | |
5fa1d40e | 15437 | tpnum = tracepoint_count; |
1042e4c0 | 15438 | else |
197f0a60 | 15439 | tpnum = get_number (arg); |
1042e4c0 SS |
15440 | |
15441 | if (tpnum <= 0) | |
15442 | { | |
15443 | if (instring && *instring) | |
15444 | printf_filtered (_("bad tracepoint number at or near '%s'\n"), | |
15445 | instring); | |
15446 | else | |
5fa1d40e | 15447 | printf_filtered (_("No previous tracepoint\n")); |
1042e4c0 SS |
15448 | return NULL; |
15449 | } | |
15450 | ||
15451 | ALL_TRACEPOINTS (t) | |
15452 | if (t->number == tpnum) | |
15453 | { | |
d9b3f62e | 15454 | return (struct tracepoint *) t; |
1042e4c0 SS |
15455 | } |
15456 | ||
1042e4c0 SS |
15457 | printf_unfiltered ("No tracepoint number %d.\n", tpnum); |
15458 | return NULL; | |
15459 | } | |
15460 | ||
d9b3f62e PA |
15461 | void |
15462 | print_recreate_thread (struct breakpoint *b, struct ui_file *fp) | |
15463 | { | |
15464 | if (b->thread != -1) | |
15465 | fprintf_unfiltered (fp, " thread %d", b->thread); | |
15466 | ||
15467 | if (b->task != 0) | |
15468 | fprintf_unfiltered (fp, " task %d", b->task); | |
15469 | ||
15470 | fprintf_unfiltered (fp, "\n"); | |
15471 | } | |
15472 | ||
6149aea9 PA |
15473 | /* Save information on user settable breakpoints (watchpoints, etc) to |
15474 | a new script file named FILENAME. If FILTER is non-NULL, call it | |
15475 | on each breakpoint and only include the ones for which it returns | |
15476 | non-zero. */ | |
15477 | ||
1042e4c0 | 15478 | static void |
6149aea9 PA |
15479 | save_breakpoints (char *filename, int from_tty, |
15480 | int (*filter) (const struct breakpoint *)) | |
1042e4c0 SS |
15481 | { |
15482 | struct breakpoint *tp; | |
6149aea9 | 15483 | int any = 0; |
1042e4c0 | 15484 | struct cleanup *cleanup; |
a7bdde9e | 15485 | struct ui_file *fp; |
6149aea9 | 15486 | int extra_trace_bits = 0; |
1042e4c0 | 15487 | |
6149aea9 PA |
15488 | if (filename == 0 || *filename == 0) |
15489 | error (_("Argument required (file name in which to save)")); | |
1042e4c0 SS |
15490 | |
15491 | /* See if we have anything to save. */ | |
6149aea9 | 15492 | ALL_BREAKPOINTS (tp) |
1042e4c0 | 15493 | { |
6149aea9 | 15494 | /* Skip internal and momentary breakpoints. */ |
09d682a4 | 15495 | if (!user_breakpoint_p (tp)) |
6149aea9 PA |
15496 | continue; |
15497 | ||
15498 | /* If we have a filter, only save the breakpoints it accepts. */ | |
15499 | if (filter && !filter (tp)) | |
15500 | continue; | |
15501 | ||
15502 | any = 1; | |
15503 | ||
15504 | if (is_tracepoint (tp)) | |
15505 | { | |
15506 | extra_trace_bits = 1; | |
15507 | ||
15508 | /* We can stop searching. */ | |
15509 | break; | |
15510 | } | |
1042e4c0 | 15511 | } |
6149aea9 PA |
15512 | |
15513 | if (!any) | |
1042e4c0 | 15514 | { |
6149aea9 | 15515 | warning (_("Nothing to save.")); |
1042e4c0 SS |
15516 | return; |
15517 | } | |
15518 | ||
c718be47 PA |
15519 | filename = tilde_expand (filename); |
15520 | cleanup = make_cleanup (xfree, filename); | |
15521 | fp = gdb_fopen (filename, "w"); | |
059fb39f | 15522 | if (!fp) |
6149aea9 PA |
15523 | error (_("Unable to open file '%s' for saving (%s)"), |
15524 | filename, safe_strerror (errno)); | |
a7bdde9e | 15525 | make_cleanup_ui_file_delete (fp); |
8bf6485c | 15526 | |
6149aea9 PA |
15527 | if (extra_trace_bits) |
15528 | save_trace_state_variables (fp); | |
8bf6485c | 15529 | |
6149aea9 | 15530 | ALL_BREAKPOINTS (tp) |
1042e4c0 | 15531 | { |
6149aea9 | 15532 | /* Skip internal and momentary breakpoints. */ |
09d682a4 | 15533 | if (!user_breakpoint_p (tp)) |
6149aea9 | 15534 | continue; |
8bf6485c | 15535 | |
6149aea9 PA |
15536 | /* If we have a filter, only save the breakpoints it accepts. */ |
15537 | if (filter && !filter (tp)) | |
15538 | continue; | |
15539 | ||
348d480f | 15540 | tp->ops->print_recreate (tp, fp); |
1042e4c0 | 15541 | |
6149aea9 PA |
15542 | /* Note, we can't rely on tp->number for anything, as we can't |
15543 | assume the recreated breakpoint numbers will match. Use $bpnum | |
15544 | instead. */ | |
15545 | ||
15546 | if (tp->cond_string) | |
15547 | fprintf_unfiltered (fp, " condition $bpnum %s\n", tp->cond_string); | |
15548 | ||
15549 | if (tp->ignore_count) | |
15550 | fprintf_unfiltered (fp, " ignore $bpnum %d\n", tp->ignore_count); | |
15551 | ||
2d9442cc | 15552 | if (tp->type != bp_dprintf && tp->commands) |
1042e4c0 | 15553 | { |
6c63c96a | 15554 | struct gdb_exception exception; |
a7bdde9e | 15555 | |
6149aea9 | 15556 | fprintf_unfiltered (fp, " commands\n"); |
a7bdde9e | 15557 | |
79a45e25 | 15558 | ui_out_redirect (current_uiout, fp); |
492d29ea | 15559 | TRY |
1042e4c0 | 15560 | { |
79a45e25 | 15561 | print_command_lines (current_uiout, tp->commands->commands, 2); |
a7bdde9e | 15562 | } |
492d29ea PA |
15563 | CATCH (ex, RETURN_MASK_ALL) |
15564 | { | |
6c63c96a | 15565 | ui_out_redirect (current_uiout, NULL); |
492d29ea PA |
15566 | throw_exception (ex); |
15567 | } | |
15568 | END_CATCH | |
1042e4c0 | 15569 | |
6c63c96a | 15570 | ui_out_redirect (current_uiout, NULL); |
a7bdde9e | 15571 | fprintf_unfiltered (fp, " end\n"); |
1042e4c0 | 15572 | } |
6149aea9 PA |
15573 | |
15574 | if (tp->enable_state == bp_disabled) | |
99894e11 | 15575 | fprintf_unfiltered (fp, "disable $bpnum\n"); |
6149aea9 PA |
15576 | |
15577 | /* If this is a multi-location breakpoint, check if the locations | |
15578 | should be individually disabled. Watchpoint locations are | |
15579 | special, and not user visible. */ | |
15580 | if (!is_watchpoint (tp) && tp->loc && tp->loc->next) | |
15581 | { | |
15582 | struct bp_location *loc; | |
15583 | int n = 1; | |
15584 | ||
15585 | for (loc = tp->loc; loc != NULL; loc = loc->next, n++) | |
15586 | if (!loc->enabled) | |
15587 | fprintf_unfiltered (fp, "disable $bpnum.%d\n", n); | |
15588 | } | |
1042e4c0 | 15589 | } |
8bf6485c | 15590 | |
6149aea9 | 15591 | if (extra_trace_bits && *default_collect) |
8bf6485c SS |
15592 | fprintf_unfiltered (fp, "set default-collect %s\n", default_collect); |
15593 | ||
1042e4c0 | 15594 | if (from_tty) |
6149aea9 | 15595 | printf_filtered (_("Saved to file '%s'.\n"), filename); |
c718be47 | 15596 | do_cleanups (cleanup); |
6149aea9 PA |
15597 | } |
15598 | ||
15599 | /* The `save breakpoints' command. */ | |
15600 | ||
15601 | static void | |
15602 | save_breakpoints_command (char *args, int from_tty) | |
15603 | { | |
15604 | save_breakpoints (args, from_tty, NULL); | |
15605 | } | |
15606 | ||
15607 | /* The `save tracepoints' command. */ | |
15608 | ||
15609 | static void | |
15610 | save_tracepoints_command (char *args, int from_tty) | |
15611 | { | |
15612 | save_breakpoints (args, from_tty, is_tracepoint); | |
1042e4c0 SS |
15613 | } |
15614 | ||
15615 | /* Create a vector of all tracepoints. */ | |
15616 | ||
15617 | VEC(breakpoint_p) * | |
eeae04df | 15618 | all_tracepoints (void) |
1042e4c0 SS |
15619 | { |
15620 | VEC(breakpoint_p) *tp_vec = 0; | |
15621 | struct breakpoint *tp; | |
15622 | ||
15623 | ALL_TRACEPOINTS (tp) | |
15624 | { | |
15625 | VEC_safe_push (breakpoint_p, tp_vec, tp); | |
15626 | } | |
15627 | ||
15628 | return tp_vec; | |
15629 | } | |
15630 | ||
c906108c | 15631 | \f |
629500fa KS |
15632 | /* This help string is used to consolidate all the help string for specifying |
15633 | locations used by several commands. */ | |
15634 | ||
15635 | #define LOCATION_HELP_STRING \ | |
15636 | "Linespecs are colon-separated lists of location parameters, such as\n\ | |
15637 | source filename, function name, label name, and line number.\n\ | |
15638 | Example: To specify the start of a label named \"the_top\" in the\n\ | |
15639 | function \"fact\" in the file \"factorial.c\", use\n\ | |
15640 | \"factorial.c:fact:the_top\".\n\ | |
15641 | \n\ | |
15642 | Address locations begin with \"*\" and specify an exact address in the\n\ | |
15643 | program. Example: To specify the fourth byte past the start function\n\ | |
15644 | \"main\", use \"*main + 4\".\n\ | |
15645 | \n\ | |
15646 | Explicit locations are similar to linespecs but use an option/argument\n\ | |
15647 | syntax to specify location parameters.\n\ | |
15648 | Example: To specify the start of the label named \"the_top\" in the\n\ | |
15649 | function \"fact\" in the file \"factorial.c\", use \"-source factorial.c\n\ | |
15650 | -function fact -label the_top\".\n" | |
15651 | ||
4a64f543 MS |
15652 | /* This help string is used for the break, hbreak, tbreak and thbreak |
15653 | commands. It is defined as a macro to prevent duplication. | |
15654 | COMMAND should be a string constant containing the name of the | |
15655 | command. */ | |
629500fa | 15656 | |
31e2b00f | 15657 | #define BREAK_ARGS_HELP(command) \ |
fb7b5af4 SDJ |
15658 | command" [PROBE_MODIFIER] [LOCATION] [thread THREADNUM] [if CONDITION]\n\ |
15659 | PROBE_MODIFIER shall be present if the command is to be placed in a\n\ | |
15660 | probe point. Accepted values are `-probe' (for a generic, automatically\n\ | |
d4777acb JM |
15661 | guessed probe type), `-probe-stap' (for a SystemTap probe) or \n\ |
15662 | `-probe-dtrace' (for a DTrace probe).\n\ | |
629500fa KS |
15663 | LOCATION may be a linespec, address, or explicit location as described\n\ |
15664 | below.\n\ | |
15665 | \n\ | |
dc10affe PA |
15666 | With no LOCATION, uses current execution address of the selected\n\ |
15667 | stack frame. This is useful for breaking on return to a stack frame.\n\ | |
31e2b00f AS |
15668 | \n\ |
15669 | THREADNUM is the number from \"info threads\".\n\ | |
15670 | CONDITION is a boolean expression.\n\ | |
629500fa | 15671 | \n" LOCATION_HELP_STRING "\n\ |
d41c0fc8 PA |
15672 | Multiple breakpoints at one place are permitted, and useful if their\n\ |
15673 | conditions are different.\n\ | |
31e2b00f AS |
15674 | \n\ |
15675 | Do \"help breakpoints\" for info on other commands dealing with breakpoints." | |
15676 | ||
44feb3ce TT |
15677 | /* List of subcommands for "catch". */ |
15678 | static struct cmd_list_element *catch_cmdlist; | |
15679 | ||
15680 | /* List of subcommands for "tcatch". */ | |
15681 | static struct cmd_list_element *tcatch_cmdlist; | |
15682 | ||
9ac4176b | 15683 | void |
44feb3ce | 15684 | add_catch_command (char *name, char *docstring, |
82ae6c8d | 15685 | cmd_sfunc_ftype *sfunc, |
625e8578 | 15686 | completer_ftype *completer, |
44feb3ce TT |
15687 | void *user_data_catch, |
15688 | void *user_data_tcatch) | |
15689 | { | |
15690 | struct cmd_list_element *command; | |
15691 | ||
15692 | command = add_cmd (name, class_breakpoint, NULL, docstring, | |
15693 | &catch_cmdlist); | |
15694 | set_cmd_sfunc (command, sfunc); | |
15695 | set_cmd_context (command, user_data_catch); | |
a96d9b2e | 15696 | set_cmd_completer (command, completer); |
44feb3ce TT |
15697 | |
15698 | command = add_cmd (name, class_breakpoint, NULL, docstring, | |
15699 | &tcatch_cmdlist); | |
15700 | set_cmd_sfunc (command, sfunc); | |
15701 | set_cmd_context (command, user_data_tcatch); | |
a96d9b2e | 15702 | set_cmd_completer (command, completer); |
44feb3ce TT |
15703 | } |
15704 | ||
6149aea9 PA |
15705 | static void |
15706 | save_command (char *arg, int from_tty) | |
15707 | { | |
3e43a32a MS |
15708 | printf_unfiltered (_("\"save\" must be followed by " |
15709 | "the name of a save subcommand.\n")); | |
635c7e8a | 15710 | help_list (save_cmdlist, "save ", all_commands, gdb_stdout); |
6149aea9 PA |
15711 | } |
15712 | ||
84f4c1fe PM |
15713 | struct breakpoint * |
15714 | iterate_over_breakpoints (int (*callback) (struct breakpoint *, void *), | |
15715 | void *data) | |
15716 | { | |
35df4500 | 15717 | struct breakpoint *b, *b_tmp; |
84f4c1fe | 15718 | |
35df4500 | 15719 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
84f4c1fe PM |
15720 | { |
15721 | if ((*callback) (b, data)) | |
15722 | return b; | |
15723 | } | |
15724 | ||
15725 | return NULL; | |
15726 | } | |
15727 | ||
0574c78f GB |
15728 | /* Zero if any of the breakpoint's locations could be a location where |
15729 | functions have been inlined, nonzero otherwise. */ | |
15730 | ||
15731 | static int | |
15732 | is_non_inline_function (struct breakpoint *b) | |
15733 | { | |
15734 | /* The shared library event breakpoint is set on the address of a | |
15735 | non-inline function. */ | |
15736 | if (b->type == bp_shlib_event) | |
15737 | return 1; | |
15738 | ||
15739 | return 0; | |
15740 | } | |
15741 | ||
15742 | /* Nonzero if the specified PC cannot be a location where functions | |
15743 | have been inlined. */ | |
15744 | ||
15745 | int | |
09ac7c10 TT |
15746 | pc_at_non_inline_function (struct address_space *aspace, CORE_ADDR pc, |
15747 | const struct target_waitstatus *ws) | |
0574c78f GB |
15748 | { |
15749 | struct breakpoint *b; | |
15750 | struct bp_location *bl; | |
15751 | ||
15752 | ALL_BREAKPOINTS (b) | |
15753 | { | |
15754 | if (!is_non_inline_function (b)) | |
15755 | continue; | |
15756 | ||
15757 | for (bl = b->loc; bl != NULL; bl = bl->next) | |
15758 | { | |
15759 | if (!bl->shlib_disabled | |
09ac7c10 | 15760 | && bpstat_check_location (bl, aspace, pc, ws)) |
0574c78f GB |
15761 | return 1; |
15762 | } | |
15763 | } | |
15764 | ||
15765 | return 0; | |
15766 | } | |
15767 | ||
2f202fde JK |
15768 | /* Remove any references to OBJFILE which is going to be freed. */ |
15769 | ||
15770 | void | |
15771 | breakpoint_free_objfile (struct objfile *objfile) | |
15772 | { | |
15773 | struct bp_location **locp, *loc; | |
15774 | ||
15775 | ALL_BP_LOCATIONS (loc, locp) | |
eb822aa6 | 15776 | if (loc->symtab != NULL && SYMTAB_OBJFILE (loc->symtab) == objfile) |
2f202fde JK |
15777 | loc->symtab = NULL; |
15778 | } | |
15779 | ||
2060206e PA |
15780 | void |
15781 | initialize_breakpoint_ops (void) | |
15782 | { | |
15783 | static int initialized = 0; | |
15784 | ||
15785 | struct breakpoint_ops *ops; | |
15786 | ||
15787 | if (initialized) | |
15788 | return; | |
15789 | initialized = 1; | |
15790 | ||
15791 | /* The breakpoint_ops structure to be inherit by all kinds of | |
15792 | breakpoints (real breakpoints, i.e., user "break" breakpoints, | |
15793 | internal and momentary breakpoints, etc.). */ | |
15794 | ops = &bkpt_base_breakpoint_ops; | |
15795 | *ops = base_breakpoint_ops; | |
15796 | ops->re_set = bkpt_re_set; | |
15797 | ops->insert_location = bkpt_insert_location; | |
15798 | ops->remove_location = bkpt_remove_location; | |
15799 | ops->breakpoint_hit = bkpt_breakpoint_hit; | |
5f700d83 | 15800 | ops->create_sals_from_location = bkpt_create_sals_from_location; |
983af33b | 15801 | ops->create_breakpoints_sal = bkpt_create_breakpoints_sal; |
5f700d83 | 15802 | ops->decode_location = bkpt_decode_location; |
2060206e PA |
15803 | |
15804 | /* The breakpoint_ops structure to be used in regular breakpoints. */ | |
15805 | ops = &bkpt_breakpoint_ops; | |
15806 | *ops = bkpt_base_breakpoint_ops; | |
15807 | ops->re_set = bkpt_re_set; | |
15808 | ops->resources_needed = bkpt_resources_needed; | |
15809 | ops->print_it = bkpt_print_it; | |
15810 | ops->print_mention = bkpt_print_mention; | |
15811 | ops->print_recreate = bkpt_print_recreate; | |
15812 | ||
15813 | /* Ranged breakpoints. */ | |
15814 | ops = &ranged_breakpoint_ops; | |
15815 | *ops = bkpt_breakpoint_ops; | |
15816 | ops->breakpoint_hit = breakpoint_hit_ranged_breakpoint; | |
15817 | ops->resources_needed = resources_needed_ranged_breakpoint; | |
15818 | ops->print_it = print_it_ranged_breakpoint; | |
15819 | ops->print_one = print_one_ranged_breakpoint; | |
15820 | ops->print_one_detail = print_one_detail_ranged_breakpoint; | |
15821 | ops->print_mention = print_mention_ranged_breakpoint; | |
15822 | ops->print_recreate = print_recreate_ranged_breakpoint; | |
15823 | ||
15824 | /* Internal breakpoints. */ | |
15825 | ops = &internal_breakpoint_ops; | |
15826 | *ops = bkpt_base_breakpoint_ops; | |
15827 | ops->re_set = internal_bkpt_re_set; | |
15828 | ops->check_status = internal_bkpt_check_status; | |
15829 | ops->print_it = internal_bkpt_print_it; | |
15830 | ops->print_mention = internal_bkpt_print_mention; | |
15831 | ||
15832 | /* Momentary breakpoints. */ | |
15833 | ops = &momentary_breakpoint_ops; | |
15834 | *ops = bkpt_base_breakpoint_ops; | |
15835 | ops->re_set = momentary_bkpt_re_set; | |
15836 | ops->check_status = momentary_bkpt_check_status; | |
15837 | ops->print_it = momentary_bkpt_print_it; | |
15838 | ops->print_mention = momentary_bkpt_print_mention; | |
15839 | ||
e2e4d78b JK |
15840 | /* Momentary breakpoints for bp_longjmp and bp_exception. */ |
15841 | ops = &longjmp_breakpoint_ops; | |
15842 | *ops = momentary_breakpoint_ops; | |
15843 | ops->dtor = longjmp_bkpt_dtor; | |
15844 | ||
55aa24fb SDJ |
15845 | /* Probe breakpoints. */ |
15846 | ops = &bkpt_probe_breakpoint_ops; | |
15847 | *ops = bkpt_breakpoint_ops; | |
15848 | ops->insert_location = bkpt_probe_insert_location; | |
15849 | ops->remove_location = bkpt_probe_remove_location; | |
5f700d83 KS |
15850 | ops->create_sals_from_location = bkpt_probe_create_sals_from_location; |
15851 | ops->decode_location = bkpt_probe_decode_location; | |
55aa24fb | 15852 | |
2060206e PA |
15853 | /* Watchpoints. */ |
15854 | ops = &watchpoint_breakpoint_ops; | |
15855 | *ops = base_breakpoint_ops; | |
3a5c3e22 | 15856 | ops->dtor = dtor_watchpoint; |
2060206e PA |
15857 | ops->re_set = re_set_watchpoint; |
15858 | ops->insert_location = insert_watchpoint; | |
15859 | ops->remove_location = remove_watchpoint; | |
15860 | ops->breakpoint_hit = breakpoint_hit_watchpoint; | |
15861 | ops->check_status = check_status_watchpoint; | |
15862 | ops->resources_needed = resources_needed_watchpoint; | |
15863 | ops->works_in_software_mode = works_in_software_mode_watchpoint; | |
15864 | ops->print_it = print_it_watchpoint; | |
15865 | ops->print_mention = print_mention_watchpoint; | |
15866 | ops->print_recreate = print_recreate_watchpoint; | |
427cd150 | 15867 | ops->explains_signal = explains_signal_watchpoint; |
2060206e PA |
15868 | |
15869 | /* Masked watchpoints. */ | |
15870 | ops = &masked_watchpoint_breakpoint_ops; | |
15871 | *ops = watchpoint_breakpoint_ops; | |
15872 | ops->insert_location = insert_masked_watchpoint; | |
15873 | ops->remove_location = remove_masked_watchpoint; | |
15874 | ops->resources_needed = resources_needed_masked_watchpoint; | |
15875 | ops->works_in_software_mode = works_in_software_mode_masked_watchpoint; | |
15876 | ops->print_it = print_it_masked_watchpoint; | |
15877 | ops->print_one_detail = print_one_detail_masked_watchpoint; | |
15878 | ops->print_mention = print_mention_masked_watchpoint; | |
15879 | ops->print_recreate = print_recreate_masked_watchpoint; | |
15880 | ||
15881 | /* Tracepoints. */ | |
15882 | ops = &tracepoint_breakpoint_ops; | |
15883 | *ops = base_breakpoint_ops; | |
15884 | ops->re_set = tracepoint_re_set; | |
15885 | ops->breakpoint_hit = tracepoint_breakpoint_hit; | |
15886 | ops->print_one_detail = tracepoint_print_one_detail; | |
15887 | ops->print_mention = tracepoint_print_mention; | |
15888 | ops->print_recreate = tracepoint_print_recreate; | |
5f700d83 | 15889 | ops->create_sals_from_location = tracepoint_create_sals_from_location; |
983af33b | 15890 | ops->create_breakpoints_sal = tracepoint_create_breakpoints_sal; |
5f700d83 | 15891 | ops->decode_location = tracepoint_decode_location; |
983af33b | 15892 | |
55aa24fb SDJ |
15893 | /* Probe tracepoints. */ |
15894 | ops = &tracepoint_probe_breakpoint_ops; | |
15895 | *ops = tracepoint_breakpoint_ops; | |
5f700d83 KS |
15896 | ops->create_sals_from_location = tracepoint_probe_create_sals_from_location; |
15897 | ops->decode_location = tracepoint_probe_decode_location; | |
55aa24fb | 15898 | |
983af33b SDJ |
15899 | /* Static tracepoints with marker (`-m'). */ |
15900 | ops = &strace_marker_breakpoint_ops; | |
15901 | *ops = tracepoint_breakpoint_ops; | |
5f700d83 | 15902 | ops->create_sals_from_location = strace_marker_create_sals_from_location; |
983af33b | 15903 | ops->create_breakpoints_sal = strace_marker_create_breakpoints_sal; |
5f700d83 | 15904 | ops->decode_location = strace_marker_decode_location; |
2060206e PA |
15905 | |
15906 | /* Fork catchpoints. */ | |
15907 | ops = &catch_fork_breakpoint_ops; | |
15908 | *ops = base_breakpoint_ops; | |
15909 | ops->insert_location = insert_catch_fork; | |
15910 | ops->remove_location = remove_catch_fork; | |
15911 | ops->breakpoint_hit = breakpoint_hit_catch_fork; | |
15912 | ops->print_it = print_it_catch_fork; | |
15913 | ops->print_one = print_one_catch_fork; | |
15914 | ops->print_mention = print_mention_catch_fork; | |
15915 | ops->print_recreate = print_recreate_catch_fork; | |
15916 | ||
15917 | /* Vfork catchpoints. */ | |
15918 | ops = &catch_vfork_breakpoint_ops; | |
15919 | *ops = base_breakpoint_ops; | |
15920 | ops->insert_location = insert_catch_vfork; | |
15921 | ops->remove_location = remove_catch_vfork; | |
15922 | ops->breakpoint_hit = breakpoint_hit_catch_vfork; | |
15923 | ops->print_it = print_it_catch_vfork; | |
15924 | ops->print_one = print_one_catch_vfork; | |
15925 | ops->print_mention = print_mention_catch_vfork; | |
15926 | ops->print_recreate = print_recreate_catch_vfork; | |
15927 | ||
15928 | /* Exec catchpoints. */ | |
15929 | ops = &catch_exec_breakpoint_ops; | |
15930 | *ops = base_breakpoint_ops; | |
15931 | ops->dtor = dtor_catch_exec; | |
15932 | ops->insert_location = insert_catch_exec; | |
15933 | ops->remove_location = remove_catch_exec; | |
15934 | ops->breakpoint_hit = breakpoint_hit_catch_exec; | |
15935 | ops->print_it = print_it_catch_exec; | |
15936 | ops->print_one = print_one_catch_exec; | |
15937 | ops->print_mention = print_mention_catch_exec; | |
15938 | ops->print_recreate = print_recreate_catch_exec; | |
15939 | ||
edcc5120 TT |
15940 | /* Solib-related catchpoints. */ |
15941 | ops = &catch_solib_breakpoint_ops; | |
15942 | *ops = base_breakpoint_ops; | |
15943 | ops->dtor = dtor_catch_solib; | |
15944 | ops->insert_location = insert_catch_solib; | |
15945 | ops->remove_location = remove_catch_solib; | |
15946 | ops->breakpoint_hit = breakpoint_hit_catch_solib; | |
15947 | ops->check_status = check_status_catch_solib; | |
15948 | ops->print_it = print_it_catch_solib; | |
15949 | ops->print_one = print_one_catch_solib; | |
15950 | ops->print_mention = print_mention_catch_solib; | |
15951 | ops->print_recreate = print_recreate_catch_solib; | |
e7e0cddf SS |
15952 | |
15953 | ops = &dprintf_breakpoint_ops; | |
15954 | *ops = bkpt_base_breakpoint_ops; | |
5c2b4418 | 15955 | ops->re_set = dprintf_re_set; |
e7e0cddf SS |
15956 | ops->resources_needed = bkpt_resources_needed; |
15957 | ops->print_it = bkpt_print_it; | |
15958 | ops->print_mention = bkpt_print_mention; | |
2d9442cc | 15959 | ops->print_recreate = dprintf_print_recreate; |
9d6e6e84 | 15960 | ops->after_condition_true = dprintf_after_condition_true; |
cd1608cc | 15961 | ops->breakpoint_hit = dprintf_breakpoint_hit; |
2060206e PA |
15962 | } |
15963 | ||
8bfd80db YQ |
15964 | /* Chain containing all defined "enable breakpoint" subcommands. */ |
15965 | ||
15966 | static struct cmd_list_element *enablebreaklist = NULL; | |
15967 | ||
c906108c | 15968 | void |
fba45db2 | 15969 | _initialize_breakpoint (void) |
c906108c SS |
15970 | { |
15971 | struct cmd_list_element *c; | |
15972 | ||
2060206e PA |
15973 | initialize_breakpoint_ops (); |
15974 | ||
84acb35a | 15975 | observer_attach_solib_unloaded (disable_breakpoints_in_unloaded_shlib); |
63644780 | 15976 | observer_attach_free_objfile (disable_breakpoints_in_freed_objfile); |
1f3b5d1b | 15977 | observer_attach_memory_changed (invalidate_bp_value_on_memory_change); |
84acb35a | 15978 | |
55aa24fb SDJ |
15979 | breakpoint_objfile_key |
15980 | = register_objfile_data_with_cleanup (NULL, free_breakpoint_probes); | |
17450429 | 15981 | |
c906108c SS |
15982 | breakpoint_chain = 0; |
15983 | /* Don't bother to call set_breakpoint_count. $bpnum isn't useful | |
15984 | before a breakpoint is set. */ | |
15985 | breakpoint_count = 0; | |
15986 | ||
1042e4c0 SS |
15987 | tracepoint_count = 0; |
15988 | ||
1bedd215 AC |
15989 | add_com ("ignore", class_breakpoint, ignore_command, _("\ |
15990 | Set ignore-count of breakpoint number N to COUNT.\n\ | |
15991 | Usage is `ignore N COUNT'.")); | |
c906108c | 15992 | |
1bedd215 AC |
15993 | add_com ("commands", class_breakpoint, commands_command, _("\ |
15994 | Set commands to be executed when a breakpoint is hit.\n\ | |
c906108c SS |
15995 | Give breakpoint number as argument after \"commands\".\n\ |
15996 | With no argument, the targeted breakpoint is the last one set.\n\ | |
15997 | The commands themselves follow starting on the next line.\n\ | |
15998 | Type a line containing \"end\" to indicate the end of them.\n\ | |
15999 | Give \"silent\" as the first line to make the breakpoint silent;\n\ | |
1bedd215 | 16000 | then no output is printed when it is hit, except what the commands print.")); |
c906108c | 16001 | |
d55637df | 16002 | c = add_com ("condition", class_breakpoint, condition_command, _("\ |
1bedd215 | 16003 | Specify breakpoint number N to break only if COND is true.\n\ |
c906108c | 16004 | Usage is `condition N COND', where N is an integer and COND is an\n\ |
1bedd215 | 16005 | expression to be evaluated whenever breakpoint N is reached.")); |
d55637df | 16006 | set_cmd_completer (c, condition_completer); |
c906108c | 16007 | |
1bedd215 | 16008 | c = add_com ("tbreak", class_breakpoint, tbreak_command, _("\ |
31e2b00f | 16009 | Set a temporary breakpoint.\n\ |
c906108c SS |
16010 | Like \"break\" except the breakpoint is only temporary,\n\ |
16011 | so it will be deleted when hit. Equivalent to \"break\" followed\n\ | |
31e2b00f AS |
16012 | by using \"enable delete\" on the breakpoint number.\n\ |
16013 | \n" | |
16014 | BREAK_ARGS_HELP ("tbreak"))); | |
5ba2abeb | 16015 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 16016 | |
1bedd215 | 16017 | c = add_com ("hbreak", class_breakpoint, hbreak_command, _("\ |
a3be7890 | 16018 | Set a hardware assisted breakpoint.\n\ |
c906108c | 16019 | Like \"break\" except the breakpoint requires hardware support,\n\ |
31e2b00f AS |
16020 | some target hardware may not have this support.\n\ |
16021 | \n" | |
16022 | BREAK_ARGS_HELP ("hbreak"))); | |
5ba2abeb | 16023 | set_cmd_completer (c, location_completer); |
c906108c | 16024 | |
1bedd215 | 16025 | c = add_com ("thbreak", class_breakpoint, thbreak_command, _("\ |
31e2b00f | 16026 | Set a temporary hardware assisted breakpoint.\n\ |
c906108c | 16027 | Like \"hbreak\" except the breakpoint is only temporary,\n\ |
31e2b00f AS |
16028 | so it will be deleted when hit.\n\ |
16029 | \n" | |
16030 | BREAK_ARGS_HELP ("thbreak"))); | |
5ba2abeb | 16031 | set_cmd_completer (c, location_completer); |
c906108c | 16032 | |
1bedd215 AC |
16033 | add_prefix_cmd ("enable", class_breakpoint, enable_command, _("\ |
16034 | Enable some breakpoints.\n\ | |
c906108c SS |
16035 | Give breakpoint numbers (separated by spaces) as arguments.\n\ |
16036 | With no subcommand, breakpoints are enabled until you command otherwise.\n\ | |
16037 | This is used to cancel the effect of the \"disable\" command.\n\ | |
1bedd215 | 16038 | With a subcommand you can enable temporarily."), |
c906108c | 16039 | &enablelist, "enable ", 1, &cmdlist); |
c906108c SS |
16040 | |
16041 | add_com_alias ("en", "enable", class_breakpoint, 1); | |
16042 | ||
84951ab5 | 16043 | add_prefix_cmd ("breakpoints", class_breakpoint, enable_command, _("\ |
1bedd215 | 16044 | Enable some breakpoints.\n\ |
c906108c SS |
16045 | Give breakpoint numbers (separated by spaces) as arguments.\n\ |
16046 | This is used to cancel the effect of the \"disable\" command.\n\ | |
1bedd215 | 16047 | May be abbreviated to simply \"enable\".\n"), |
c5aa993b | 16048 | &enablebreaklist, "enable breakpoints ", 1, &enablelist); |
c906108c | 16049 | |
1a966eab AC |
16050 | add_cmd ("once", no_class, enable_once_command, _("\ |
16051 | Enable breakpoints for one hit. Give breakpoint numbers.\n\ | |
16052 | If a breakpoint is hit while enabled in this fashion, it becomes disabled."), | |
c906108c SS |
16053 | &enablebreaklist); |
16054 | ||
1a966eab AC |
16055 | add_cmd ("delete", no_class, enable_delete_command, _("\ |
16056 | Enable breakpoints and delete when hit. Give breakpoint numbers.\n\ | |
16057 | If a breakpoint is hit while enabled in this fashion, it is deleted."), | |
c906108c SS |
16058 | &enablebreaklist); |
16059 | ||
816338b5 SS |
16060 | add_cmd ("count", no_class, enable_count_command, _("\ |
16061 | Enable breakpoints for COUNT hits. Give count and then breakpoint numbers.\n\ | |
16062 | If a breakpoint is hit while enabled in this fashion,\n\ | |
16063 | the count is decremented; when it reaches zero, the breakpoint is disabled."), | |
16064 | &enablebreaklist); | |
16065 | ||
1a966eab AC |
16066 | add_cmd ("delete", no_class, enable_delete_command, _("\ |
16067 | Enable breakpoints and delete when hit. Give breakpoint numbers.\n\ | |
16068 | If a breakpoint is hit while enabled in this fashion, it is deleted."), | |
c906108c SS |
16069 | &enablelist); |
16070 | ||
1a966eab AC |
16071 | add_cmd ("once", no_class, enable_once_command, _("\ |
16072 | Enable breakpoints for one hit. Give breakpoint numbers.\n\ | |
16073 | If a breakpoint is hit while enabled in this fashion, it becomes disabled."), | |
816338b5 SS |
16074 | &enablelist); |
16075 | ||
16076 | add_cmd ("count", no_class, enable_count_command, _("\ | |
16077 | Enable breakpoints for COUNT hits. Give count and then breakpoint numbers.\n\ | |
16078 | If a breakpoint is hit while enabled in this fashion,\n\ | |
16079 | the count is decremented; when it reaches zero, the breakpoint is disabled."), | |
c906108c SS |
16080 | &enablelist); |
16081 | ||
1bedd215 AC |
16082 | add_prefix_cmd ("disable", class_breakpoint, disable_command, _("\ |
16083 | Disable some breakpoints.\n\ | |
c906108c SS |
16084 | Arguments are breakpoint numbers with spaces in between.\n\ |
16085 | To disable all breakpoints, give no argument.\n\ | |
64b9b334 | 16086 | A disabled breakpoint is not forgotten, but has no effect until re-enabled."), |
c906108c SS |
16087 | &disablelist, "disable ", 1, &cmdlist); |
16088 | add_com_alias ("dis", "disable", class_breakpoint, 1); | |
16089 | add_com_alias ("disa", "disable", class_breakpoint, 1); | |
c906108c | 16090 | |
1a966eab AC |
16091 | add_cmd ("breakpoints", class_alias, disable_command, _("\ |
16092 | Disable some breakpoints.\n\ | |
c906108c SS |
16093 | Arguments are breakpoint numbers with spaces in between.\n\ |
16094 | To disable all breakpoints, give no argument.\n\ | |
64b9b334 | 16095 | A disabled breakpoint is not forgotten, but has no effect until re-enabled.\n\ |
1a966eab | 16096 | This command may be abbreviated \"disable\"."), |
c906108c SS |
16097 | &disablelist); |
16098 | ||
1bedd215 AC |
16099 | add_prefix_cmd ("delete", class_breakpoint, delete_command, _("\ |
16100 | Delete some breakpoints or auto-display expressions.\n\ | |
c906108c SS |
16101 | Arguments are breakpoint numbers with spaces in between.\n\ |
16102 | To delete all breakpoints, give no argument.\n\ | |
16103 | \n\ | |
16104 | Also a prefix command for deletion of other GDB objects.\n\ | |
1bedd215 | 16105 | The \"unset\" command is also an alias for \"delete\"."), |
c906108c SS |
16106 | &deletelist, "delete ", 1, &cmdlist); |
16107 | add_com_alias ("d", "delete", class_breakpoint, 1); | |
7f198e01 | 16108 | add_com_alias ("del", "delete", class_breakpoint, 1); |
c906108c | 16109 | |
1a966eab AC |
16110 | add_cmd ("breakpoints", class_alias, delete_command, _("\ |
16111 | Delete some breakpoints or auto-display expressions.\n\ | |
c906108c SS |
16112 | Arguments are breakpoint numbers with spaces in between.\n\ |
16113 | To delete all breakpoints, give no argument.\n\ | |
1a966eab | 16114 | This command may be abbreviated \"delete\"."), |
c906108c SS |
16115 | &deletelist); |
16116 | ||
1bedd215 | 16117 | add_com ("clear", class_breakpoint, clear_command, _("\ |
629500fa KS |
16118 | Clear breakpoint at specified location.\n\ |
16119 | Argument may be a linespec, explicit, or address location as described below.\n\ | |
1bedd215 AC |
16120 | \n\ |
16121 | With no argument, clears all breakpoints in the line that the selected frame\n\ | |
629500fa KS |
16122 | is executing in.\n" |
16123 | "\n" LOCATION_HELP_STRING "\n\ | |
1bedd215 | 16124 | See also the \"delete\" command which clears breakpoints by number.")); |
a6cc4789 | 16125 | add_com_alias ("cl", "clear", class_breakpoint, 1); |
c906108c | 16126 | |
1bedd215 | 16127 | c = add_com ("break", class_breakpoint, break_command, _("\ |
629500fa | 16128 | Set breakpoint at specified location.\n" |
31e2b00f | 16129 | BREAK_ARGS_HELP ("break"))); |
5ba2abeb | 16130 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 16131 | |
c906108c SS |
16132 | add_com_alias ("b", "break", class_run, 1); |
16133 | add_com_alias ("br", "break", class_run, 1); | |
16134 | add_com_alias ("bre", "break", class_run, 1); | |
16135 | add_com_alias ("brea", "break", class_run, 1); | |
16136 | ||
c906108c SS |
16137 | if (dbx_commands) |
16138 | { | |
1bedd215 AC |
16139 | add_abbrev_prefix_cmd ("stop", class_breakpoint, stop_command, _("\ |
16140 | Break in function/address or break at a line in the current file."), | |
c5aa993b JM |
16141 | &stoplist, "stop ", 1, &cmdlist); |
16142 | add_cmd ("in", class_breakpoint, stopin_command, | |
1a966eab | 16143 | _("Break in function or address."), &stoplist); |
c5aa993b | 16144 | add_cmd ("at", class_breakpoint, stopat_command, |
1a966eab | 16145 | _("Break at a line in the current file."), &stoplist); |
1bedd215 AC |
16146 | add_com ("status", class_info, breakpoints_info, _("\ |
16147 | Status of user-settable breakpoints, or breakpoint number NUMBER.\n\ | |
c906108c SS |
16148 | The \"Type\" column indicates one of:\n\ |
16149 | \tbreakpoint - normal breakpoint\n\ | |
16150 | \twatchpoint - watchpoint\n\ | |
16151 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
16152 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ | |
16153 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1bedd215 AC |
16154 | address and file/line number respectively.\n\ |
16155 | \n\ | |
16156 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16157 | are set to the address of the last breakpoint listed unless the command\n\ |
16158 | is prefixed with \"server \".\n\n\ | |
c906108c | 16159 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1bedd215 | 16160 | breakpoint set.")); |
c906108c SS |
16161 | } |
16162 | ||
1bedd215 | 16163 | add_info ("breakpoints", breakpoints_info, _("\ |
e5a67952 | 16164 | Status of specified breakpoints (all user-settable breakpoints if no argument).\n\ |
c906108c SS |
16165 | The \"Type\" column indicates one of:\n\ |
16166 | \tbreakpoint - normal breakpoint\n\ | |
16167 | \twatchpoint - watchpoint\n\ | |
16168 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
16169 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ | |
16170 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1bedd215 AC |
16171 | address and file/line number respectively.\n\ |
16172 | \n\ | |
16173 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16174 | are set to the address of the last breakpoint listed unless the command\n\ |
16175 | is prefixed with \"server \".\n\n\ | |
c906108c | 16176 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1bedd215 | 16177 | breakpoint set.")); |
c906108c | 16178 | |
6b04bdb7 MS |
16179 | add_info_alias ("b", "breakpoints", 1); |
16180 | ||
1a966eab AC |
16181 | add_cmd ("breakpoints", class_maintenance, maintenance_info_breakpoints, _("\ |
16182 | Status of all breakpoints, or breakpoint number NUMBER.\n\ | |
c906108c SS |
16183 | The \"Type\" column indicates one of:\n\ |
16184 | \tbreakpoint - normal breakpoint\n\ | |
16185 | \twatchpoint - watchpoint\n\ | |
16186 | \tlongjmp - internal breakpoint used to step through longjmp()\n\ | |
16187 | \tlongjmp resume - internal breakpoint at the target of longjmp()\n\ | |
16188 | \tuntil - internal breakpoint used by the \"until\" command\n\ | |
1a966eab AC |
16189 | \tfinish - internal breakpoint used by the \"finish\" command\n\ |
16190 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
c906108c SS |
16191 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ |
16192 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1a966eab AC |
16193 | address and file/line number respectively.\n\ |
16194 | \n\ | |
16195 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16196 | are set to the address of the last breakpoint listed unless the command\n\ |
16197 | is prefixed with \"server \".\n\n\ | |
c906108c | 16198 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1a966eab | 16199 | breakpoint set."), |
c906108c SS |
16200 | &maintenanceinfolist); |
16201 | ||
44feb3ce TT |
16202 | add_prefix_cmd ("catch", class_breakpoint, catch_command, _("\ |
16203 | Set catchpoints to catch events."), | |
16204 | &catch_cmdlist, "catch ", | |
16205 | 0/*allow-unknown*/, &cmdlist); | |
16206 | ||
16207 | add_prefix_cmd ("tcatch", class_breakpoint, tcatch_command, _("\ | |
16208 | Set temporary catchpoints to catch events."), | |
16209 | &tcatch_cmdlist, "tcatch ", | |
16210 | 0/*allow-unknown*/, &cmdlist); | |
16211 | ||
44feb3ce TT |
16212 | add_catch_command ("fork", _("Catch calls to fork."), |
16213 | catch_fork_command_1, | |
a96d9b2e | 16214 | NULL, |
44feb3ce TT |
16215 | (void *) (uintptr_t) catch_fork_permanent, |
16216 | (void *) (uintptr_t) catch_fork_temporary); | |
16217 | add_catch_command ("vfork", _("Catch calls to vfork."), | |
16218 | catch_fork_command_1, | |
a96d9b2e | 16219 | NULL, |
44feb3ce TT |
16220 | (void *) (uintptr_t) catch_vfork_permanent, |
16221 | (void *) (uintptr_t) catch_vfork_temporary); | |
16222 | add_catch_command ("exec", _("Catch calls to exec."), | |
16223 | catch_exec_command_1, | |
a96d9b2e SDJ |
16224 | NULL, |
16225 | CATCH_PERMANENT, | |
16226 | CATCH_TEMPORARY); | |
edcc5120 TT |
16227 | add_catch_command ("load", _("Catch loads of shared libraries.\n\ |
16228 | Usage: catch load [REGEX]\n\ | |
16229 | If REGEX is given, only stop for libraries matching the regular expression."), | |
16230 | catch_load_command_1, | |
16231 | NULL, | |
16232 | CATCH_PERMANENT, | |
16233 | CATCH_TEMPORARY); | |
16234 | add_catch_command ("unload", _("Catch unloads of shared libraries.\n\ | |
16235 | Usage: catch unload [REGEX]\n\ | |
16236 | If REGEX is given, only stop for libraries matching the regular expression."), | |
16237 | catch_unload_command_1, | |
16238 | NULL, | |
16239 | CATCH_PERMANENT, | |
16240 | CATCH_TEMPORARY); | |
c5aa993b | 16241 | |
1bedd215 AC |
16242 | c = add_com ("watch", class_breakpoint, watch_command, _("\ |
16243 | Set a watchpoint for an expression.\n\ | |
06a64a0b | 16244 | Usage: watch [-l|-location] EXPRESSION\n\ |
c906108c | 16245 | A watchpoint stops execution of your program whenever the value of\n\ |
06a64a0b TT |
16246 | an expression changes.\n\ |
16247 | If -l or -location is given, this evaluates EXPRESSION and watches\n\ | |
16248 | the memory to which it refers.")); | |
65d12d83 | 16249 | set_cmd_completer (c, expression_completer); |
c906108c | 16250 | |
1bedd215 AC |
16251 | c = add_com ("rwatch", class_breakpoint, rwatch_command, _("\ |
16252 | Set a read watchpoint for an expression.\n\ | |
06a64a0b | 16253 | Usage: rwatch [-l|-location] EXPRESSION\n\ |
c906108c | 16254 | A watchpoint stops execution of your program whenever the value of\n\ |
06a64a0b TT |
16255 | an expression is read.\n\ |
16256 | If -l or -location is given, this evaluates EXPRESSION and watches\n\ | |
16257 | the memory to which it refers.")); | |
65d12d83 | 16258 | set_cmd_completer (c, expression_completer); |
c906108c | 16259 | |
1bedd215 AC |
16260 | c = add_com ("awatch", class_breakpoint, awatch_command, _("\ |
16261 | Set a watchpoint for an expression.\n\ | |
06a64a0b | 16262 | Usage: awatch [-l|-location] EXPRESSION\n\ |
c906108c | 16263 | A watchpoint stops execution of your program whenever the value of\n\ |
06a64a0b TT |
16264 | an expression is either read or written.\n\ |
16265 | If -l or -location is given, this evaluates EXPRESSION and watches\n\ | |
16266 | the memory to which it refers.")); | |
65d12d83 | 16267 | set_cmd_completer (c, expression_completer); |
c906108c | 16268 | |
d77f58be | 16269 | add_info ("watchpoints", watchpoints_info, _("\ |
e5a67952 | 16270 | Status of specified watchpoints (all watchpoints if no argument).")); |
c906108c | 16271 | |
920d2a44 AC |
16272 | /* XXX: cagney/2005-02-23: This should be a boolean, and should |
16273 | respond to changes - contrary to the description. */ | |
85c07804 AC |
16274 | add_setshow_zinteger_cmd ("can-use-hw-watchpoints", class_support, |
16275 | &can_use_hw_watchpoints, _("\ | |
16276 | Set debugger's willingness to use watchpoint hardware."), _("\ | |
16277 | Show debugger's willingness to use watchpoint hardware."), _("\ | |
c906108c SS |
16278 | If zero, gdb will not use hardware for new watchpoints, even if\n\ |
16279 | such is available. (However, any hardware watchpoints that were\n\ | |
16280 | created before setting this to nonzero, will continue to use watchpoint\n\ | |
85c07804 AC |
16281 | hardware.)"), |
16282 | NULL, | |
920d2a44 | 16283 | show_can_use_hw_watchpoints, |
85c07804 | 16284 | &setlist, &showlist); |
c906108c SS |
16285 | |
16286 | can_use_hw_watchpoints = 1; | |
fa8d40ab | 16287 | |
1042e4c0 SS |
16288 | /* Tracepoint manipulation commands. */ |
16289 | ||
16290 | c = add_com ("trace", class_breakpoint, trace_command, _("\ | |
629500fa | 16291 | Set a tracepoint at specified location.\n\ |
1042e4c0 SS |
16292 | \n" |
16293 | BREAK_ARGS_HELP ("trace") "\n\ | |
16294 | Do \"help tracepoints\" for info on other tracepoint commands.")); | |
16295 | set_cmd_completer (c, location_completer); | |
16296 | ||
16297 | add_com_alias ("tp", "trace", class_alias, 0); | |
16298 | add_com_alias ("tr", "trace", class_alias, 1); | |
16299 | add_com_alias ("tra", "trace", class_alias, 1); | |
16300 | add_com_alias ("trac", "trace", class_alias, 1); | |
16301 | ||
7a697b8d | 16302 | c = add_com ("ftrace", class_breakpoint, ftrace_command, _("\ |
629500fa | 16303 | Set a fast tracepoint at specified location.\n\ |
7a697b8d SS |
16304 | \n" |
16305 | BREAK_ARGS_HELP ("ftrace") "\n\ | |
16306 | Do \"help tracepoints\" for info on other tracepoint commands.")); | |
16307 | set_cmd_completer (c, location_completer); | |
16308 | ||
0fb4aa4b | 16309 | c = add_com ("strace", class_breakpoint, strace_command, _("\ |
629500fa | 16310 | Set a static tracepoint at location or marker.\n\ |
0fb4aa4b PA |
16311 | \n\ |
16312 | strace [LOCATION] [if CONDITION]\n\ | |
629500fa KS |
16313 | LOCATION may be a linespec, explicit, or address location (described below) \n\ |
16314 | or -m MARKER_ID.\n\n\ | |
16315 | If a marker id is specified, probe the marker with that name. With\n\ | |
16316 | no LOCATION, uses current execution address of the selected stack frame.\n\ | |
0fb4aa4b PA |
16317 | Static tracepoints accept an extra collect action -- ``collect $_sdata''.\n\ |
16318 | This collects arbitrary user data passed in the probe point call to the\n\ | |
16319 | tracing library. You can inspect it when analyzing the trace buffer,\n\ | |
16320 | by printing the $_sdata variable like any other convenience variable.\n\ | |
16321 | \n\ | |
16322 | CONDITION is a boolean expression.\n\ | |
629500fa | 16323 | \n" LOCATION_HELP_STRING "\n\ |
d41c0fc8 PA |
16324 | Multiple tracepoints at one place are permitted, and useful if their\n\ |
16325 | conditions are different.\n\ | |
0fb4aa4b PA |
16326 | \n\ |
16327 | Do \"help breakpoints\" for info on other commands dealing with breakpoints.\n\ | |
16328 | Do \"help tracepoints\" for info on other tracepoint commands.")); | |
16329 | set_cmd_completer (c, location_completer); | |
16330 | ||
1042e4c0 | 16331 | add_info ("tracepoints", tracepoints_info, _("\ |
e5a67952 | 16332 | Status of specified tracepoints (all tracepoints if no argument).\n\ |
1042e4c0 SS |
16333 | Convenience variable \"$tpnum\" contains the number of the\n\ |
16334 | last tracepoint set.")); | |
16335 | ||
16336 | add_info_alias ("tp", "tracepoints", 1); | |
16337 | ||
16338 | add_cmd ("tracepoints", class_trace, delete_trace_command, _("\ | |
16339 | Delete specified tracepoints.\n\ | |
16340 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
16341 | No argument means delete all tracepoints."), | |
16342 | &deletelist); | |
7e20dfcd | 16343 | add_alias_cmd ("tr", "tracepoints", class_trace, 1, &deletelist); |
1042e4c0 SS |
16344 | |
16345 | c = add_cmd ("tracepoints", class_trace, disable_trace_command, _("\ | |
16346 | Disable specified tracepoints.\n\ | |
16347 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
16348 | No argument means disable all tracepoints."), | |
16349 | &disablelist); | |
16350 | deprecate_cmd (c, "disable"); | |
16351 | ||
16352 | c = add_cmd ("tracepoints", class_trace, enable_trace_command, _("\ | |
16353 | Enable specified tracepoints.\n\ | |
16354 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
16355 | No argument means enable all tracepoints."), | |
16356 | &enablelist); | |
16357 | deprecate_cmd (c, "enable"); | |
16358 | ||
16359 | add_com ("passcount", class_trace, trace_pass_command, _("\ | |
16360 | Set the passcount for a tracepoint.\n\ | |
16361 | The trace will end when the tracepoint has been passed 'count' times.\n\ | |
16362 | Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\ | |
16363 | if TPNUM is omitted, passcount refers to the last tracepoint defined.")); | |
16364 | ||
6149aea9 PA |
16365 | add_prefix_cmd ("save", class_breakpoint, save_command, |
16366 | _("Save breakpoint definitions as a script."), | |
16367 | &save_cmdlist, "save ", | |
16368 | 0/*allow-unknown*/, &cmdlist); | |
16369 | ||
16370 | c = add_cmd ("breakpoints", class_breakpoint, save_breakpoints_command, _("\ | |
16371 | Save current breakpoint definitions as a script.\n\ | |
cce7e648 | 16372 | This includes all types of breakpoints (breakpoints, watchpoints,\n\ |
6149aea9 PA |
16373 | catchpoints, tracepoints). Use the 'source' command in another debug\n\ |
16374 | session to restore them."), | |
16375 | &save_cmdlist); | |
16376 | set_cmd_completer (c, filename_completer); | |
16377 | ||
16378 | c = add_cmd ("tracepoints", class_trace, save_tracepoints_command, _("\ | |
1042e4c0 | 16379 | Save current tracepoint definitions as a script.\n\ |
6149aea9 PA |
16380 | Use the 'source' command in another debug session to restore them."), |
16381 | &save_cmdlist); | |
1042e4c0 SS |
16382 | set_cmd_completer (c, filename_completer); |
16383 | ||
6149aea9 PA |
16384 | c = add_com_alias ("save-tracepoints", "save tracepoints", class_trace, 0); |
16385 | deprecate_cmd (c, "save tracepoints"); | |
16386 | ||
1bedd215 | 16387 | add_prefix_cmd ("breakpoint", class_maintenance, set_breakpoint_cmd, _("\ |
fa8d40ab JJ |
16388 | Breakpoint specific settings\n\ |
16389 | Configure various breakpoint-specific variables such as\n\ | |
1bedd215 | 16390 | pending breakpoint behavior"), |
fa8d40ab JJ |
16391 | &breakpoint_set_cmdlist, "set breakpoint ", |
16392 | 0/*allow-unknown*/, &setlist); | |
1bedd215 | 16393 | add_prefix_cmd ("breakpoint", class_maintenance, show_breakpoint_cmd, _("\ |
fa8d40ab JJ |
16394 | Breakpoint specific settings\n\ |
16395 | Configure various breakpoint-specific variables such as\n\ | |
1bedd215 | 16396 | pending breakpoint behavior"), |
fa8d40ab JJ |
16397 | &breakpoint_show_cmdlist, "show breakpoint ", |
16398 | 0/*allow-unknown*/, &showlist); | |
16399 | ||
7915a72c AC |
16400 | add_setshow_auto_boolean_cmd ("pending", no_class, |
16401 | &pending_break_support, _("\ | |
16402 | Set debugger's behavior regarding pending breakpoints."), _("\ | |
16403 | Show debugger's behavior regarding pending breakpoints."), _("\ | |
6e1d7d6c AC |
16404 | If on, an unrecognized breakpoint location will cause gdb to create a\n\ |
16405 | pending breakpoint. If off, an unrecognized breakpoint location results in\n\ | |
16406 | an error. If auto, an unrecognized breakpoint location results in a\n\ | |
7915a72c | 16407 | user-query to see if a pending breakpoint should be created."), |
2c5b56ce | 16408 | NULL, |
920d2a44 | 16409 | show_pending_break_support, |
6e1d7d6c AC |
16410 | &breakpoint_set_cmdlist, |
16411 | &breakpoint_show_cmdlist); | |
fa8d40ab JJ |
16412 | |
16413 | pending_break_support = AUTO_BOOLEAN_AUTO; | |
765dc015 VP |
16414 | |
16415 | add_setshow_boolean_cmd ("auto-hw", no_class, | |
16416 | &automatic_hardware_breakpoints, _("\ | |
16417 | Set automatic usage of hardware breakpoints."), _("\ | |
16418 | Show automatic usage of hardware breakpoints."), _("\ | |
16419 | If set, the debugger will automatically use hardware breakpoints for\n\ | |
16420 | breakpoints set with \"break\" but falling in read-only memory. If not set,\n\ | |
16421 | a warning will be emitted for such breakpoints."), | |
16422 | NULL, | |
16423 | show_automatic_hardware_breakpoints, | |
16424 | &breakpoint_set_cmdlist, | |
16425 | &breakpoint_show_cmdlist); | |
74960c60 | 16426 | |
a25a5a45 PA |
16427 | add_setshow_boolean_cmd ("always-inserted", class_support, |
16428 | &always_inserted_mode, _("\ | |
74960c60 VP |
16429 | Set mode for inserting breakpoints."), _("\ |
16430 | Show mode for inserting breakpoints."), _("\ | |
a25a5a45 PA |
16431 | When this mode is on, breakpoints are inserted immediately as soon as\n\ |
16432 | they're created, kept inserted even when execution stops, and removed\n\ | |
16433 | only when the user deletes them. When this mode is off (the default),\n\ | |
16434 | breakpoints are inserted only when execution continues, and removed\n\ | |
16435 | when execution stops."), | |
72d0e2c5 YQ |
16436 | NULL, |
16437 | &show_always_inserted_mode, | |
16438 | &breakpoint_set_cmdlist, | |
16439 | &breakpoint_show_cmdlist); | |
f1310107 | 16440 | |
b775012e LM |
16441 | add_setshow_enum_cmd ("condition-evaluation", class_breakpoint, |
16442 | condition_evaluation_enums, | |
16443 | &condition_evaluation_mode_1, _("\ | |
16444 | Set mode of breakpoint condition evaluation."), _("\ | |
16445 | Show mode of breakpoint condition evaluation."), _("\ | |
d1cda5d9 | 16446 | When this is set to \"host\", breakpoint conditions will be\n\ |
b775012e LM |
16447 | evaluated on the host's side by GDB. When it is set to \"target\",\n\ |
16448 | breakpoint conditions will be downloaded to the target (if the target\n\ | |
16449 | supports such feature) and conditions will be evaluated on the target's side.\n\ | |
16450 | If this is set to \"auto\" (default), this will be automatically set to\n\ | |
16451 | \"target\" if it supports condition evaluation, otherwise it will\n\ | |
16452 | be set to \"gdb\""), | |
16453 | &set_condition_evaluation_mode, | |
16454 | &show_condition_evaluation_mode, | |
16455 | &breakpoint_set_cmdlist, | |
16456 | &breakpoint_show_cmdlist); | |
16457 | ||
f1310107 TJB |
16458 | add_com ("break-range", class_breakpoint, break_range_command, _("\ |
16459 | Set a breakpoint for an address range.\n\ | |
16460 | break-range START-LOCATION, END-LOCATION\n\ | |
16461 | where START-LOCATION and END-LOCATION can be one of the following:\n\ | |
16462 | LINENUM, for that line in the current file,\n\ | |
16463 | FILE:LINENUM, for that line in that file,\n\ | |
16464 | +OFFSET, for that number of lines after the current line\n\ | |
16465 | or the start of the range\n\ | |
16466 | FUNCTION, for the first line in that function,\n\ | |
16467 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
16468 | *ADDRESS, for the instruction at that address.\n\ | |
16469 | \n\ | |
16470 | The breakpoint will stop execution of the inferior whenever it executes\n\ | |
16471 | an instruction at any address within the [START-LOCATION, END-LOCATION]\n\ | |
16472 | range (including START-LOCATION and END-LOCATION).")); | |
16473 | ||
e7e0cddf | 16474 | c = add_com ("dprintf", class_breakpoint, dprintf_command, _("\ |
629500fa | 16475 | Set a dynamic printf at specified location.\n\ |
e7e0cddf | 16476 | dprintf location,format string,arg1,arg2,...\n\ |
629500fa KS |
16477 | location may be a linespec, explicit, or address location.\n" |
16478 | "\n" LOCATION_HELP_STRING)); | |
e7e0cddf SS |
16479 | set_cmd_completer (c, location_completer); |
16480 | ||
16481 | add_setshow_enum_cmd ("dprintf-style", class_support, | |
16482 | dprintf_style_enums, &dprintf_style, _("\ | |
16483 | Set the style of usage for dynamic printf."), _("\ | |
16484 | Show the style of usage for dynamic printf."), _("\ | |
16485 | This setting chooses how GDB will do a dynamic printf.\n\ | |
16486 | If the value is \"gdb\", then the printing is done by GDB to its own\n\ | |
16487 | console, as with the \"printf\" command.\n\ | |
16488 | If the value is \"call\", the print is done by calling a function in your\n\ | |
16489 | program; by default printf(), but you can choose a different function or\n\ | |
16490 | output stream by setting dprintf-function and dprintf-channel."), | |
16491 | update_dprintf_commands, NULL, | |
16492 | &setlist, &showlist); | |
16493 | ||
16494 | dprintf_function = xstrdup ("printf"); | |
16495 | add_setshow_string_cmd ("dprintf-function", class_support, | |
16496 | &dprintf_function, _("\ | |
16497 | Set the function to use for dynamic printf"), _("\ | |
16498 | Show the function to use for dynamic printf"), NULL, | |
16499 | update_dprintf_commands, NULL, | |
16500 | &setlist, &showlist); | |
16501 | ||
16502 | dprintf_channel = xstrdup (""); | |
16503 | add_setshow_string_cmd ("dprintf-channel", class_support, | |
16504 | &dprintf_channel, _("\ | |
16505 | Set the channel to use for dynamic printf"), _("\ | |
16506 | Show the channel to use for dynamic printf"), NULL, | |
16507 | update_dprintf_commands, NULL, | |
16508 | &setlist, &showlist); | |
16509 | ||
d3ce09f5 SS |
16510 | add_setshow_boolean_cmd ("disconnected-dprintf", no_class, |
16511 | &disconnected_dprintf, _("\ | |
16512 | Set whether dprintf continues after GDB disconnects."), _("\ | |
16513 | Show whether dprintf continues after GDB disconnects."), _("\ | |
16514 | Use this to let dprintf commands continue to hit and produce output\n\ | |
16515 | even if GDB disconnects or detaches from the target."), | |
16516 | NULL, | |
16517 | NULL, | |
16518 | &setlist, &showlist); | |
16519 | ||
16520 | add_com ("agent-printf", class_vars, agent_printf_command, _("\ | |
16521 | agent-printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
16522 | (target agent only) This is useful for formatted output in user-defined commands.")); | |
16523 | ||
765dc015 | 16524 | automatic_hardware_breakpoints = 1; |
f3b1572e PA |
16525 | |
16526 | observer_attach_about_to_proceed (breakpoint_about_to_proceed); | |
49fa26b0 | 16527 | observer_attach_thread_exit (remove_threaded_breakpoints); |
c906108c | 16528 | } |