Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1990-2014 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <errno.h> | |
0e9f083f | 24 | #include <string.h> |
c906108c | 25 | #include "target.h" |
68c765e2 | 26 | #include "target-dcache.h" |
c906108c SS |
27 | #include "gdbcmd.h" |
28 | #include "symtab.h" | |
29 | #include "inferior.h" | |
45741a9c | 30 | #include "infrun.h" |
c906108c SS |
31 | #include "bfd.h" |
32 | #include "symfile.h" | |
33 | #include "objfiles.h" | |
4930751a | 34 | #include "dcache.h" |
c906108c | 35 | #include <signal.h> |
4e052eda | 36 | #include "regcache.h" |
0088c768 | 37 | #include "gdb_assert.h" |
b6591e8b | 38 | #include "gdbcore.h" |
9e35dae4 | 39 | #include "exceptions.h" |
424163ea | 40 | #include "target-descriptions.h" |
e1ac3328 | 41 | #include "gdbthread.h" |
b9db4ced | 42 | #include "solib.h" |
07b82ea5 | 43 | #include "exec.h" |
edb3359d | 44 | #include "inline-frame.h" |
2f4d8875 | 45 | #include "tracepoint.h" |
7313baad | 46 | #include "gdb/fileio.h" |
8ffcbaaf | 47 | #include "agent.h" |
8de71aab | 48 | #include "auxv.h" |
c906108c | 49 | |
a14ed312 | 50 | static void target_info (char *, int); |
c906108c | 51 | |
0a4f40a2 | 52 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 53 | |
5009afc5 AS |
54 | static int default_watchpoint_addr_within_range (struct target_ops *, |
55 | CORE_ADDR, CORE_ADDR, int); | |
56 | ||
31568a15 TT |
57 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
58 | CORE_ADDR, int); | |
e0d24f8d | 59 | |
a53f3625 TT |
60 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
61 | ||
4229b31d TT |
62 | static ptid_t default_get_ada_task_ptid (struct target_ops *self, |
63 | long lwp, long tid); | |
64 | ||
098dba18 TT |
65 | static int default_follow_fork (struct target_ops *self, int follow_child, |
66 | int detach_fork); | |
67 | ||
8d657035 TT |
68 | static void default_mourn_inferior (struct target_ops *self); |
69 | ||
58a5184e TT |
70 | static int default_search_memory (struct target_ops *ops, |
71 | CORE_ADDR start_addr, | |
72 | ULONGEST search_space_len, | |
73 | const gdb_byte *pattern, | |
74 | ULONGEST pattern_len, | |
75 | CORE_ADDR *found_addrp); | |
76 | ||
936d2992 PA |
77 | static int default_verify_memory (struct target_ops *self, |
78 | const gdb_byte *data, | |
79 | CORE_ADDR memaddr, ULONGEST size); | |
80 | ||
8eaff7cd TT |
81 | static struct address_space *default_thread_address_space |
82 | (struct target_ops *self, ptid_t ptid); | |
83 | ||
c25c4a8b | 84 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 85 | |
555bbdeb TT |
86 | static int return_zero (struct target_ops *); |
87 | ||
88 | static int return_zero_has_execution (struct target_ops *, ptid_t); | |
c906108c | 89 | |
a14ed312 | 90 | static void target_command (char *, int); |
c906108c | 91 | |
a14ed312 | 92 | static struct target_ops *find_default_run_target (char *); |
c906108c | 93 | |
c2250ad1 UW |
94 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
95 | ptid_t ptid); | |
96 | ||
0b5a2719 TT |
97 | static int dummy_find_memory_regions (struct target_ops *self, |
98 | find_memory_region_ftype ignore1, | |
99 | void *ignore2); | |
100 | ||
16f796b1 TT |
101 | static char *dummy_make_corefile_notes (struct target_ops *self, |
102 | bfd *ignore1, int *ignore2); | |
103 | ||
770234d3 TT |
104 | static char *default_pid_to_str (struct target_ops *ops, ptid_t ptid); |
105 | ||
fe31bf5b TT |
106 | static enum exec_direction_kind default_execution_direction |
107 | (struct target_ops *self); | |
108 | ||
c0eca49f TT |
109 | static CORE_ADDR default_target_decr_pc_after_break (struct target_ops *ops, |
110 | struct gdbarch *gdbarch); | |
111 | ||
1101cb7b TT |
112 | #include "target-delegates.c" |
113 | ||
a14ed312 | 114 | static void init_dummy_target (void); |
c906108c | 115 | |
aa869812 AC |
116 | static struct target_ops debug_target; |
117 | ||
a14ed312 | 118 | static void debug_to_open (char *, int); |
c906108c | 119 | |
f32dbf8c MM |
120 | static void debug_to_prepare_to_store (struct target_ops *self, |
121 | struct regcache *); | |
c906108c | 122 | |
a14ed312 | 123 | static void debug_to_files_info (struct target_ops *); |
c906108c | 124 | |
3db08215 | 125 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 126 | struct bp_target_info *); |
c906108c | 127 | |
3db08215 | 128 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 129 | struct bp_target_info *); |
c906108c | 130 | |
5461485a TT |
131 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
132 | int, int, int); | |
ccaa32c7 | 133 | |
23a26771 TT |
134 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
135 | struct gdbarch *, | |
a6d9a66e | 136 | struct bp_target_info *); |
ccaa32c7 | 137 | |
a64dc96c TT |
138 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
139 | struct gdbarch *, | |
a6d9a66e | 140 | struct bp_target_info *); |
ccaa32c7 | 141 | |
7bb99c53 TT |
142 | static int debug_to_insert_watchpoint (struct target_ops *self, |
143 | CORE_ADDR, int, int, | |
0cf6dd15 | 144 | struct expression *); |
ccaa32c7 | 145 | |
11b5219a TT |
146 | static int debug_to_remove_watchpoint (struct target_ops *self, |
147 | CORE_ADDR, int, int, | |
0cf6dd15 | 148 | struct expression *); |
ccaa32c7 | 149 | |
4aa7a7f5 | 150 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 151 | |
5009afc5 AS |
152 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
153 | CORE_ADDR, CORE_ADDR, int); | |
154 | ||
31568a15 TT |
155 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
156 | CORE_ADDR, int); | |
e0d24f8d | 157 | |
c3a5ff89 TT |
158 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
159 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
160 | struct expression *); |
161 | ||
c42bf286 | 162 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 163 | |
d2f640d4 | 164 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 165 | |
2e1e1a19 | 166 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 167 | |
ae3bd431 | 168 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 169 | |
e3594fd1 | 170 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 171 | |
71a9f134 | 172 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 173 | |
da82bd6b | 174 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 175 | |
1eab8a48 | 176 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 177 | |
c906108c | 178 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 179 | array; the current index into the array; the allocated size of the |
c906108c SS |
180 | array. */ |
181 | struct target_ops **target_structs; | |
182 | unsigned target_struct_size; | |
c906108c SS |
183 | unsigned target_struct_allocsize; |
184 | #define DEFAULT_ALLOCSIZE 10 | |
185 | ||
186 | /* The initial current target, so that there is always a semi-valid | |
187 | current target. */ | |
188 | ||
189 | static struct target_ops dummy_target; | |
190 | ||
191 | /* Top of target stack. */ | |
192 | ||
258b763a | 193 | static struct target_ops *target_stack; |
c906108c SS |
194 | |
195 | /* The target structure we are currently using to talk to a process | |
196 | or file or whatever "inferior" we have. */ | |
197 | ||
198 | struct target_ops current_target; | |
199 | ||
200 | /* Command list for target. */ | |
201 | ||
202 | static struct cmd_list_element *targetlist = NULL; | |
203 | ||
cf7a04e8 DJ |
204 | /* Nonzero if we should trust readonly sections from the |
205 | executable when reading memory. */ | |
206 | ||
207 | static int trust_readonly = 0; | |
208 | ||
8defab1a DJ |
209 | /* Nonzero if we should show true memory content including |
210 | memory breakpoint inserted by gdb. */ | |
211 | ||
212 | static int show_memory_breakpoints = 0; | |
213 | ||
d914c394 SS |
214 | /* These globals control whether GDB attempts to perform these |
215 | operations; they are useful for targets that need to prevent | |
216 | inadvertant disruption, such as in non-stop mode. */ | |
217 | ||
218 | int may_write_registers = 1; | |
219 | ||
220 | int may_write_memory = 1; | |
221 | ||
222 | int may_insert_breakpoints = 1; | |
223 | ||
224 | int may_insert_tracepoints = 1; | |
225 | ||
226 | int may_insert_fast_tracepoints = 1; | |
227 | ||
228 | int may_stop = 1; | |
229 | ||
c906108c SS |
230 | /* Non-zero if we want to see trace of target level stuff. */ |
231 | ||
ccce17b0 | 232 | static unsigned int targetdebug = 0; |
920d2a44 AC |
233 | static void |
234 | show_targetdebug (struct ui_file *file, int from_tty, | |
235 | struct cmd_list_element *c, const char *value) | |
236 | { | |
237 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
238 | } | |
c906108c | 239 | |
a14ed312 | 240 | static void setup_target_debug (void); |
c906108c | 241 | |
c906108c SS |
242 | /* The user just typed 'target' without the name of a target. */ |
243 | ||
c906108c | 244 | static void |
fba45db2 | 245 | target_command (char *arg, int from_tty) |
c906108c SS |
246 | { |
247 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
248 | gdb_stdout); | |
249 | } | |
250 | ||
c35b1492 PA |
251 | /* Default target_has_* methods for process_stratum targets. */ |
252 | ||
253 | int | |
254 | default_child_has_all_memory (struct target_ops *ops) | |
255 | { | |
256 | /* If no inferior selected, then we can't read memory here. */ | |
257 | if (ptid_equal (inferior_ptid, null_ptid)) | |
258 | return 0; | |
259 | ||
260 | return 1; | |
261 | } | |
262 | ||
263 | int | |
264 | default_child_has_memory (struct target_ops *ops) | |
265 | { | |
266 | /* If no inferior selected, then we can't read memory here. */ | |
267 | if (ptid_equal (inferior_ptid, null_ptid)) | |
268 | return 0; | |
269 | ||
270 | return 1; | |
271 | } | |
272 | ||
273 | int | |
274 | default_child_has_stack (struct target_ops *ops) | |
275 | { | |
276 | /* If no inferior selected, there's no stack. */ | |
277 | if (ptid_equal (inferior_ptid, null_ptid)) | |
278 | return 0; | |
279 | ||
280 | return 1; | |
281 | } | |
282 | ||
283 | int | |
284 | default_child_has_registers (struct target_ops *ops) | |
285 | { | |
286 | /* Can't read registers from no inferior. */ | |
287 | if (ptid_equal (inferior_ptid, null_ptid)) | |
288 | return 0; | |
289 | ||
290 | return 1; | |
291 | } | |
292 | ||
293 | int | |
aeaec162 | 294 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
295 | { |
296 | /* If there's no thread selected, then we can't make it run through | |
297 | hoops. */ | |
aeaec162 | 298 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
299 | return 0; |
300 | ||
301 | return 1; | |
302 | } | |
303 | ||
304 | ||
305 | int | |
306 | target_has_all_memory_1 (void) | |
307 | { | |
308 | struct target_ops *t; | |
309 | ||
310 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
311 | if (t->to_has_all_memory (t)) | |
312 | return 1; | |
313 | ||
314 | return 0; | |
315 | } | |
316 | ||
317 | int | |
318 | target_has_memory_1 (void) | |
319 | { | |
320 | struct target_ops *t; | |
321 | ||
322 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
323 | if (t->to_has_memory (t)) | |
324 | return 1; | |
325 | ||
326 | return 0; | |
327 | } | |
328 | ||
329 | int | |
330 | target_has_stack_1 (void) | |
331 | { | |
332 | struct target_ops *t; | |
333 | ||
334 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
335 | if (t->to_has_stack (t)) | |
336 | return 1; | |
337 | ||
338 | return 0; | |
339 | } | |
340 | ||
341 | int | |
342 | target_has_registers_1 (void) | |
343 | { | |
344 | struct target_ops *t; | |
345 | ||
346 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
347 | if (t->to_has_registers (t)) | |
348 | return 1; | |
349 | ||
350 | return 0; | |
351 | } | |
352 | ||
353 | int | |
aeaec162 | 354 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
355 | { |
356 | struct target_ops *t; | |
357 | ||
358 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 359 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
360 | return 1; |
361 | ||
362 | return 0; | |
363 | } | |
364 | ||
aeaec162 TT |
365 | int |
366 | target_has_execution_current (void) | |
367 | { | |
368 | return target_has_execution_1 (inferior_ptid); | |
369 | } | |
370 | ||
c22a2b88 TT |
371 | /* Complete initialization of T. This ensures that various fields in |
372 | T are set, if needed by the target implementation. */ | |
c906108c SS |
373 | |
374 | void | |
c22a2b88 | 375 | complete_target_initialization (struct target_ops *t) |
c906108c | 376 | { |
0088c768 | 377 | /* Provide default values for all "must have" methods. */ |
0088c768 | 378 | |
c35b1492 | 379 | if (t->to_has_all_memory == NULL) |
555bbdeb | 380 | t->to_has_all_memory = return_zero; |
c35b1492 PA |
381 | |
382 | if (t->to_has_memory == NULL) | |
555bbdeb | 383 | t->to_has_memory = return_zero; |
c35b1492 PA |
384 | |
385 | if (t->to_has_stack == NULL) | |
555bbdeb | 386 | t->to_has_stack = return_zero; |
c35b1492 PA |
387 | |
388 | if (t->to_has_registers == NULL) | |
555bbdeb | 389 | t->to_has_registers = return_zero; |
c35b1492 PA |
390 | |
391 | if (t->to_has_execution == NULL) | |
555bbdeb | 392 | t->to_has_execution = return_zero_has_execution; |
1101cb7b | 393 | |
b3ccfe11 TT |
394 | /* These methods can be called on an unpushed target and so require |
395 | a default implementation if the target might plausibly be the | |
396 | default run target. */ | |
397 | gdb_assert (t->to_can_run == NULL || (t->to_can_async_p != NULL | |
398 | && t->to_supports_non_stop != NULL)); | |
399 | ||
1101cb7b | 400 | install_delegators (t); |
c22a2b88 TT |
401 | } |
402 | ||
403 | /* Add possible target architecture T to the list and add a new | |
404 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
405 | completer if not NULL. */ | |
406 | ||
407 | void | |
408 | add_target_with_completer (struct target_ops *t, | |
409 | completer_ftype *completer) | |
410 | { | |
411 | struct cmd_list_element *c; | |
412 | ||
413 | complete_target_initialization (t); | |
c35b1492 | 414 | |
c906108c SS |
415 | if (!target_structs) |
416 | { | |
417 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
418 | target_structs = (struct target_ops **) xmalloc | |
419 | (target_struct_allocsize * sizeof (*target_structs)); | |
420 | } | |
421 | if (target_struct_size >= target_struct_allocsize) | |
422 | { | |
423 | target_struct_allocsize *= 2; | |
424 | target_structs = (struct target_ops **) | |
c5aa993b JM |
425 | xrealloc ((char *) target_structs, |
426 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
427 | } |
428 | target_structs[target_struct_size++] = t; | |
c906108c SS |
429 | |
430 | if (targetlist == NULL) | |
1bedd215 AC |
431 | add_prefix_cmd ("target", class_run, target_command, _("\ |
432 | Connect to a target machine or process.\n\ | |
c906108c SS |
433 | The first argument is the type or protocol of the target machine.\n\ |
434 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
435 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 436 | `help target ' followed by the protocol name."), |
c906108c | 437 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
438 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
439 | &targetlist); | |
440 | if (completer != NULL) | |
441 | set_cmd_completer (c, completer); | |
442 | } | |
443 | ||
444 | /* Add a possible target architecture to the list. */ | |
445 | ||
446 | void | |
447 | add_target (struct target_ops *t) | |
448 | { | |
449 | add_target_with_completer (t, NULL); | |
c906108c SS |
450 | } |
451 | ||
b48d48eb MM |
452 | /* See target.h. */ |
453 | ||
454 | void | |
455 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
456 | { | |
457 | struct cmd_list_element *c; | |
458 | char *alt; | |
459 | ||
460 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
461 | see PR cli/15104. */ | |
462 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
463 | alt = xstrprintf ("target %s", t->to_shortname); | |
464 | deprecate_cmd (c, alt); | |
465 | } | |
466 | ||
c906108c SS |
467 | /* Stub functions */ |
468 | ||
7d85a9c0 JB |
469 | void |
470 | target_kill (void) | |
471 | { | |
423a4807 TT |
472 | if (targetdebug) |
473 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
7d85a9c0 | 474 | |
423a4807 | 475 | current_target.to_kill (¤t_target); |
7d85a9c0 JB |
476 | } |
477 | ||
11cf8741 JM |
478 | void |
479 | target_load (char *arg, int from_tty) | |
480 | { | |
4e5d721f | 481 | target_dcache_invalidate (); |
71a9f134 | 482 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
483 | } |
484 | ||
d9d2d8b6 PA |
485 | void |
486 | target_terminal_inferior (void) | |
487 | { | |
488 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 489 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
490 | this point the target is not async yet. However, if sync_execution |
491 | is not set, we know it will become async prior to resume. */ | |
492 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
493 | return; |
494 | ||
495 | /* If GDB is resuming the inferior in the foreground, install | |
496 | inferior's terminal modes. */ | |
d2f640d4 | 497 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 498 | } |
136d6dae | 499 | |
c906108c | 500 | static void |
fba45db2 | 501 | tcomplain (void) |
c906108c | 502 | { |
8a3fe4f8 | 503 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
504 | current_target.to_shortname); |
505 | } | |
506 | ||
507 | void | |
fba45db2 | 508 | noprocess (void) |
c906108c | 509 | { |
8a3fe4f8 | 510 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
511 | } |
512 | ||
c906108c | 513 | static void |
0a4f40a2 | 514 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 515 | { |
a3f17187 | 516 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
517 | } |
518 | ||
0ef643c8 JB |
519 | /* A default implementation for the to_get_ada_task_ptid target method. |
520 | ||
521 | This function builds the PTID by using both LWP and TID as part of | |
522 | the PTID lwp and tid elements. The pid used is the pid of the | |
523 | inferior_ptid. */ | |
524 | ||
2c0b251b | 525 | static ptid_t |
1e6b91a4 | 526 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
527 | { |
528 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
529 | } | |
530 | ||
32231432 | 531 | static enum exec_direction_kind |
4c612759 | 532 | default_execution_direction (struct target_ops *self) |
32231432 PA |
533 | { |
534 | if (!target_can_execute_reverse) | |
535 | return EXEC_FORWARD; | |
536 | else if (!target_can_async_p ()) | |
537 | return EXEC_FORWARD; | |
538 | else | |
539 | gdb_assert_not_reached ("\ | |
540 | to_execution_direction must be implemented for reverse async"); | |
541 | } | |
542 | ||
7998dfc3 AC |
543 | /* Go through the target stack from top to bottom, copying over zero |
544 | entries in current_target, then filling in still empty entries. In | |
545 | effect, we are doing class inheritance through the pushed target | |
546 | vectors. | |
547 | ||
548 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
549 | is currently implemented, is that it discards any knowledge of | |
550 | which target an inherited method originally belonged to. | |
551 | Consequently, new new target methods should instead explicitly and | |
552 | locally search the target stack for the target that can handle the | |
553 | request. */ | |
c906108c SS |
554 | |
555 | static void | |
7998dfc3 | 556 | update_current_target (void) |
c906108c | 557 | { |
7998dfc3 AC |
558 | struct target_ops *t; |
559 | ||
08d8bcd7 | 560 | /* First, reset current's contents. */ |
7998dfc3 AC |
561 | memset (¤t_target, 0, sizeof (current_target)); |
562 | ||
1101cb7b TT |
563 | /* Install the delegators. */ |
564 | install_delegators (¤t_target); | |
565 | ||
be4ddd36 TT |
566 | current_target.to_stratum = target_stack->to_stratum; |
567 | ||
7998dfc3 AC |
568 | #define INHERIT(FIELD, TARGET) \ |
569 | if (!current_target.FIELD) \ | |
570 | current_target.FIELD = (TARGET)->FIELD | |
571 | ||
be4ddd36 TT |
572 | /* Do not add any new INHERITs here. Instead, use the delegation |
573 | mechanism provided by make-target-delegates. */ | |
7998dfc3 AC |
574 | for (t = target_stack; t; t = t->beneath) |
575 | { | |
576 | INHERIT (to_shortname, t); | |
577 | INHERIT (to_longname, t); | |
dc177b7a | 578 | INHERIT (to_attach_no_wait, t); |
74174d2e | 579 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 580 | INHERIT (to_have_continuable_watchpoint, t); |
7998dfc3 | 581 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
582 | } |
583 | #undef INHERIT | |
584 | ||
7998dfc3 AC |
585 | /* Finally, position the target-stack beneath the squashed |
586 | "current_target". That way code looking for a non-inherited | |
587 | target method can quickly and simply find it. */ | |
588 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
589 | |
590 | if (targetdebug) | |
591 | setup_target_debug (); | |
c906108c SS |
592 | } |
593 | ||
594 | /* Push a new target type into the stack of the existing target accessors, | |
595 | possibly superseding some of the existing accessors. | |
596 | ||
c906108c SS |
597 | Rather than allow an empty stack, we always have the dummy target at |
598 | the bottom stratum, so we can call the function vectors without | |
599 | checking them. */ | |
600 | ||
b26a4dcb | 601 | void |
fba45db2 | 602 | push_target (struct target_ops *t) |
c906108c | 603 | { |
258b763a | 604 | struct target_ops **cur; |
c906108c SS |
605 | |
606 | /* Check magic number. If wrong, it probably means someone changed | |
607 | the struct definition, but not all the places that initialize one. */ | |
608 | if (t->to_magic != OPS_MAGIC) | |
609 | { | |
c5aa993b JM |
610 | fprintf_unfiltered (gdb_stderr, |
611 | "Magic number of %s target struct wrong\n", | |
612 | t->to_shortname); | |
3e43a32a MS |
613 | internal_error (__FILE__, __LINE__, |
614 | _("failed internal consistency check")); | |
c906108c SS |
615 | } |
616 | ||
258b763a AC |
617 | /* Find the proper stratum to install this target in. */ |
618 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 619 | { |
258b763a | 620 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
621 | break; |
622 | } | |
623 | ||
258b763a | 624 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 625 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
626 | targets to CUR, and not just those at this stratum level. */ |
627 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
628 | { | |
629 | /* There's already something at this stratum level. Close it, | |
630 | and un-hook it from the stack. */ | |
631 | struct target_ops *tmp = (*cur); | |
5d502164 | 632 | |
258b763a AC |
633 | (*cur) = (*cur)->beneath; |
634 | tmp->beneath = NULL; | |
460014f5 | 635 | target_close (tmp); |
258b763a | 636 | } |
c906108c SS |
637 | |
638 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
639 | t->beneath = (*cur); |
640 | (*cur) = t; | |
c906108c SS |
641 | |
642 | update_current_target (); | |
c906108c SS |
643 | } |
644 | ||
2bc416ba | 645 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
646 | Return how many times it was removed (0 or 1). */ |
647 | ||
648 | int | |
fba45db2 | 649 | unpush_target (struct target_ops *t) |
c906108c | 650 | { |
258b763a AC |
651 | struct target_ops **cur; |
652 | struct target_ops *tmp; | |
c906108c | 653 | |
c8d104ad PA |
654 | if (t->to_stratum == dummy_stratum) |
655 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 656 | _("Attempt to unpush the dummy target")); |
c8d104ad | 657 | |
c906108c | 658 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 659 | can only occur once in the target stack. */ |
c906108c | 660 | |
258b763a AC |
661 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
662 | { | |
663 | if ((*cur) == t) | |
664 | break; | |
665 | } | |
c906108c | 666 | |
305436e0 PA |
667 | /* If we don't find target_ops, quit. Only open targets should be |
668 | closed. */ | |
258b763a | 669 | if ((*cur) == NULL) |
305436e0 | 670 | return 0; |
5269965e | 671 | |
c378eb4e | 672 | /* Unchain the target. */ |
258b763a AC |
673 | tmp = (*cur); |
674 | (*cur) = (*cur)->beneath; | |
675 | tmp->beneath = NULL; | |
c906108c SS |
676 | |
677 | update_current_target (); | |
c906108c | 678 | |
305436e0 PA |
679 | /* Finally close the target. Note we do this after unchaining, so |
680 | any target method calls from within the target_close | |
681 | implementation don't end up in T anymore. */ | |
460014f5 | 682 | target_close (t); |
305436e0 | 683 | |
c906108c SS |
684 | return 1; |
685 | } | |
686 | ||
aa76d38d | 687 | void |
460014f5 | 688 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 689 | { |
87ab71f0 | 690 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 691 | { |
aa76d38d PA |
692 | if (!unpush_target (target_stack)) |
693 | { | |
694 | fprintf_unfiltered (gdb_stderr, | |
695 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 696 | target_stack->to_shortname); |
aa76d38d PA |
697 | internal_error (__FILE__, __LINE__, |
698 | _("failed internal consistency check")); | |
699 | break; | |
700 | } | |
701 | } | |
702 | } | |
703 | ||
87ab71f0 | 704 | void |
460014f5 | 705 | pop_all_targets (void) |
87ab71f0 | 706 | { |
460014f5 | 707 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
708 | } |
709 | ||
c0edd9ed JK |
710 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
711 | ||
712 | int | |
713 | target_is_pushed (struct target_ops *t) | |
714 | { | |
715 | struct target_ops **cur; | |
716 | ||
717 | /* Check magic number. If wrong, it probably means someone changed | |
718 | the struct definition, but not all the places that initialize one. */ | |
719 | if (t->to_magic != OPS_MAGIC) | |
720 | { | |
721 | fprintf_unfiltered (gdb_stderr, | |
722 | "Magic number of %s target struct wrong\n", | |
723 | t->to_shortname); | |
3e43a32a MS |
724 | internal_error (__FILE__, __LINE__, |
725 | _("failed internal consistency check")); | |
c0edd9ed JK |
726 | } |
727 | ||
728 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
729 | if (*cur == t) | |
730 | return 1; | |
731 | ||
732 | return 0; | |
733 | } | |
734 | ||
72f5cf0e | 735 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
736 | current thread's thread-local storage with offset OFFSET. */ |
737 | CORE_ADDR | |
738 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
739 | { | |
740 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
741 | struct target_ops *target; |
742 | ||
743 | for (target = current_target.beneath; | |
744 | target != NULL; | |
745 | target = target->beneath) | |
746 | { | |
747 | if (target->to_get_thread_local_address != NULL) | |
748 | break; | |
749 | } | |
9e35dae4 | 750 | |
117de6a9 | 751 | if (target != NULL |
f5656ead | 752 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
753 | { |
754 | ptid_t ptid = inferior_ptid; | |
755 | volatile struct gdb_exception ex; | |
756 | ||
757 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
758 | { | |
759 | CORE_ADDR lm_addr; | |
760 | ||
761 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 762 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 | 763 | objfile); |
9e35dae4 | 764 | |
3e43a32a MS |
765 | addr = target->to_get_thread_local_address (target, ptid, |
766 | lm_addr, offset); | |
9e35dae4 DJ |
767 | } |
768 | /* If an error occurred, print TLS related messages here. Otherwise, | |
769 | throw the error to some higher catcher. */ | |
770 | if (ex.reason < 0) | |
771 | { | |
772 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
773 | ||
774 | switch (ex.error) | |
775 | { | |
776 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
777 | error (_("Cannot find thread-local variables " |
778 | "in this thread library.")); | |
9e35dae4 DJ |
779 | break; |
780 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
781 | if (objfile_is_library) | |
782 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 783 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
784 | else |
785 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 786 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
787 | break; |
788 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
789 | if (objfile_is_library) | |
790 | error (_("The inferior has not yet allocated storage for" | |
791 | " thread-local variables in\n" | |
792 | "the shared library `%s'\n" | |
793 | "for %s"), | |
4262abfb | 794 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
795 | else |
796 | error (_("The inferior has not yet allocated storage for" | |
797 | " thread-local variables in\n" | |
798 | "the executable `%s'\n" | |
799 | "for %s"), | |
4262abfb | 800 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
801 | break; |
802 | case TLS_GENERIC_ERROR: | |
803 | if (objfile_is_library) | |
804 | error (_("Cannot find thread-local storage for %s, " | |
805 | "shared library %s:\n%s"), | |
806 | target_pid_to_str (ptid), | |
4262abfb | 807 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
808 | else |
809 | error (_("Cannot find thread-local storage for %s, " | |
810 | "executable file %s:\n%s"), | |
811 | target_pid_to_str (ptid), | |
4262abfb | 812 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
813 | break; |
814 | default: | |
815 | throw_exception (ex); | |
816 | break; | |
817 | } | |
818 | } | |
819 | } | |
820 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
821 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
822 | else | |
823 | error (_("Cannot find thread-local variables on this target")); | |
824 | ||
825 | return addr; | |
826 | } | |
827 | ||
6be7b56e | 828 | const char * |
01cb8804 | 829 | target_xfer_status_to_string (enum target_xfer_status status) |
6be7b56e PA |
830 | { |
831 | #define CASE(X) case X: return #X | |
01cb8804 | 832 | switch (status) |
6be7b56e PA |
833 | { |
834 | CASE(TARGET_XFER_E_IO); | |
bc113b4e | 835 | CASE(TARGET_XFER_UNAVAILABLE); |
6be7b56e PA |
836 | default: |
837 | return "<unknown>"; | |
838 | } | |
839 | #undef CASE | |
840 | }; | |
841 | ||
842 | ||
c906108c SS |
843 | #undef MIN |
844 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
845 | ||
846 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
847 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
848 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
849 | is responsible for freeing it. Return the number of bytes successfully | |
850 | read. */ | |
851 | ||
852 | int | |
fba45db2 | 853 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 854 | { |
c2e8b827 | 855 | int tlen, offset, i; |
1b0ba102 | 856 | gdb_byte buf[4]; |
c906108c SS |
857 | int errcode = 0; |
858 | char *buffer; | |
859 | int buffer_allocated; | |
860 | char *bufptr; | |
861 | unsigned int nbytes_read = 0; | |
862 | ||
6217bf3e MS |
863 | gdb_assert (string); |
864 | ||
c906108c SS |
865 | /* Small for testing. */ |
866 | buffer_allocated = 4; | |
867 | buffer = xmalloc (buffer_allocated); | |
868 | bufptr = buffer; | |
869 | ||
c906108c SS |
870 | while (len > 0) |
871 | { | |
872 | tlen = MIN (len, 4 - (memaddr & 3)); | |
873 | offset = memaddr & 3; | |
874 | ||
1b0ba102 | 875 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
876 | if (errcode != 0) |
877 | { | |
878 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 879 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
880 | a single byte. */ |
881 | tlen = 1; | |
882 | offset = 0; | |
b8eb5af0 | 883 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
884 | if (errcode != 0) |
885 | goto done; | |
886 | } | |
887 | ||
888 | if (bufptr - buffer + tlen > buffer_allocated) | |
889 | { | |
890 | unsigned int bytes; | |
5d502164 | 891 | |
c906108c SS |
892 | bytes = bufptr - buffer; |
893 | buffer_allocated *= 2; | |
894 | buffer = xrealloc (buffer, buffer_allocated); | |
895 | bufptr = buffer + bytes; | |
896 | } | |
897 | ||
898 | for (i = 0; i < tlen; i++) | |
899 | { | |
900 | *bufptr++ = buf[i + offset]; | |
901 | if (buf[i + offset] == '\000') | |
902 | { | |
903 | nbytes_read += i + 1; | |
904 | goto done; | |
905 | } | |
906 | } | |
907 | ||
908 | memaddr += tlen; | |
909 | len -= tlen; | |
910 | nbytes_read += tlen; | |
911 | } | |
c5aa993b | 912 | done: |
6217bf3e | 913 | *string = buffer; |
c906108c SS |
914 | if (errnop != NULL) |
915 | *errnop = errcode; | |
c906108c SS |
916 | return nbytes_read; |
917 | } | |
918 | ||
07b82ea5 PA |
919 | struct target_section_table * |
920 | target_get_section_table (struct target_ops *target) | |
921 | { | |
07b82ea5 PA |
922 | if (targetdebug) |
923 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
924 | ||
7e35c012 | 925 | return (*target->to_get_section_table) (target); |
07b82ea5 PA |
926 | } |
927 | ||
8db32d44 | 928 | /* Find a section containing ADDR. */ |
07b82ea5 | 929 | |
0542c86d | 930 | struct target_section * |
8db32d44 AC |
931 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
932 | { | |
07b82ea5 | 933 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 934 | struct target_section *secp; |
07b82ea5 PA |
935 | |
936 | if (table == NULL) | |
937 | return NULL; | |
938 | ||
939 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
940 | { |
941 | if (addr >= secp->addr && addr < secp->endaddr) | |
942 | return secp; | |
943 | } | |
944 | return NULL; | |
945 | } | |
946 | ||
9f713294 YQ |
947 | /* Read memory from more than one valid target. A core file, for |
948 | instance, could have some of memory but delegate other bits to | |
949 | the target below it. So, we must manually try all targets. */ | |
950 | ||
9b409511 | 951 | static enum target_xfer_status |
17fde6d0 | 952 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
953 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
954 | ULONGEST *xfered_len) | |
9f713294 | 955 | { |
9b409511 | 956 | enum target_xfer_status res; |
9f713294 YQ |
957 | |
958 | do | |
959 | { | |
960 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
961 | readbuf, writebuf, memaddr, len, |
962 | xfered_len); | |
963 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
964 | break; |
965 | ||
633785ff | 966 | /* Stop if the target reports that the memory is not available. */ |
bc113b4e | 967 | if (res == TARGET_XFER_UNAVAILABLE) |
633785ff MM |
968 | break; |
969 | ||
9f713294 YQ |
970 | /* We want to continue past core files to executables, but not |
971 | past a running target's memory. */ | |
972 | if (ops->to_has_all_memory (ops)) | |
973 | break; | |
974 | ||
975 | ops = ops->beneath; | |
976 | } | |
977 | while (ops != NULL); | |
978 | ||
0f26cec1 PA |
979 | /* The cache works at the raw memory level. Make sure the cache |
980 | gets updated with raw contents no matter what kind of memory | |
981 | object was originally being written. Note we do write-through | |
982 | first, so that if it fails, we don't write to the cache contents | |
983 | that never made it to the target. */ | |
984 | if (writebuf != NULL | |
985 | && !ptid_equal (inferior_ptid, null_ptid) | |
986 | && target_dcache_init_p () | |
987 | && (stack_cache_enabled_p () || code_cache_enabled_p ())) | |
988 | { | |
989 | DCACHE *dcache = target_dcache_get (); | |
990 | ||
991 | /* Note that writing to an area of memory which wasn't present | |
992 | in the cache doesn't cause it to be loaded in. */ | |
993 | dcache_update (dcache, res, memaddr, writebuf, *xfered_len); | |
994 | } | |
995 | ||
9f713294 YQ |
996 | return res; |
997 | } | |
998 | ||
7f79c47e DE |
999 | /* Perform a partial memory transfer. |
1000 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1001 | |
9b409511 | 1002 | static enum target_xfer_status |
f0ba3972 | 1003 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1004 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1005 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1006 | { |
9b409511 | 1007 | enum target_xfer_status res; |
cf7a04e8 DJ |
1008 | int reg_len; |
1009 | struct mem_region *region; | |
4e5d721f | 1010 | struct inferior *inf; |
cf7a04e8 | 1011 | |
07b82ea5 PA |
1012 | /* For accesses to unmapped overlay sections, read directly from |
1013 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1014 | if (readbuf != NULL && overlay_debugging) | |
1015 | { | |
1016 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1017 | |
07b82ea5 PA |
1018 | if (pc_in_unmapped_range (memaddr, section)) |
1019 | { | |
1020 | struct target_section_table *table | |
1021 | = target_get_section_table (ops); | |
1022 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1023 | |
07b82ea5 PA |
1024 | memaddr = overlay_mapped_address (memaddr, section); |
1025 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1026 | memaddr, len, xfered_len, |
07b82ea5 PA |
1027 | table->sections, |
1028 | table->sections_end, | |
1029 | section_name); | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1034 | if (readbuf != NULL && trust_readonly) |
1035 | { | |
0542c86d | 1036 | struct target_section *secp; |
07b82ea5 | 1037 | struct target_section_table *table; |
cf7a04e8 DJ |
1038 | |
1039 | secp = target_section_by_addr (ops, memaddr); | |
1040 | if (secp != NULL | |
2b2848e2 DE |
1041 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1042 | secp->the_bfd_section) | |
cf7a04e8 | 1043 | & SEC_READONLY)) |
07b82ea5 PA |
1044 | { |
1045 | table = target_get_section_table (ops); | |
1046 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1047 | memaddr, len, xfered_len, |
07b82ea5 PA |
1048 | table->sections, |
1049 | table->sections_end, | |
1050 | NULL); | |
1051 | } | |
98646950 UW |
1052 | } |
1053 | ||
cf7a04e8 DJ |
1054 | /* Try GDB's internal data cache. */ |
1055 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1056 | /* region->hi == 0 means there's no upper bound. */ |
1057 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1058 | reg_len = len; |
1059 | else | |
1060 | reg_len = region->hi - memaddr; | |
1061 | ||
1062 | switch (region->attrib.mode) | |
1063 | { | |
1064 | case MEM_RO: | |
1065 | if (writebuf != NULL) | |
2ed4b548 | 1066 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1067 | break; |
1068 | ||
1069 | case MEM_WO: | |
1070 | if (readbuf != NULL) | |
2ed4b548 | 1071 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1072 | break; |
a76d924d DJ |
1073 | |
1074 | case MEM_FLASH: | |
1075 | /* We only support writing to flash during "load" for now. */ | |
1076 | if (writebuf != NULL) | |
1077 | error (_("Writing to flash memory forbidden in this context")); | |
1078 | break; | |
4b5752d0 VP |
1079 | |
1080 | case MEM_NONE: | |
2ed4b548 | 1081 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1082 | } |
1083 | ||
6c95b8df PA |
1084 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1085 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1086 | else | |
1087 | inf = NULL; | |
4e5d721f DE |
1088 | |
1089 | if (inf != NULL | |
0f26cec1 | 1090 | && readbuf != NULL |
2f4d8875 PA |
1091 | /* The dcache reads whole cache lines; that doesn't play well |
1092 | with reading from a trace buffer, because reading outside of | |
1093 | the collected memory range fails. */ | |
1094 | && get_traceframe_number () == -1 | |
4e5d721f | 1095 | && (region->attrib.cache |
29453a14 YQ |
1096 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1097 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1098 | { |
2a2f9fe4 YQ |
1099 | DCACHE *dcache = target_dcache_get_or_init (); |
1100 | ||
0f26cec1 PA |
1101 | return dcache_read_memory_partial (ops, dcache, memaddr, readbuf, |
1102 | reg_len, xfered_len); | |
cf7a04e8 DJ |
1103 | } |
1104 | ||
1105 | /* If none of those methods found the memory we wanted, fall back | |
1106 | to a target partial transfer. Normally a single call to | |
1107 | to_xfer_partial is enough; if it doesn't recognize an object | |
1108 | it will call the to_xfer_partial of the next target down. | |
1109 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1110 | object which can be read from more than one valid target. |
1111 | A core file, for instance, could have some of memory but | |
1112 | delegate other bits to the target below it. So, we must | |
1113 | manually try all targets. */ | |
1114 | ||
1115 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1116 | xfered_len); | |
cf7a04e8 DJ |
1117 | |
1118 | /* If we still haven't got anything, return the last error. We | |
1119 | give up. */ | |
1120 | return res; | |
0779438d AC |
1121 | } |
1122 | ||
f0ba3972 PA |
1123 | /* Perform a partial memory transfer. For docs see target.h, |
1124 | to_xfer_partial. */ | |
1125 | ||
9b409511 | 1126 | static enum target_xfer_status |
f0ba3972 | 1127 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1128 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1129 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1130 | { |
9b409511 | 1131 | enum target_xfer_status res; |
f0ba3972 PA |
1132 | |
1133 | /* Zero length requests are ok and require no work. */ | |
1134 | if (len == 0) | |
9b409511 | 1135 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1136 | |
1137 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1138 | breakpoint insns, thus hiding out from higher layers whether | |
1139 | there are software breakpoints inserted in the code stream. */ | |
1140 | if (readbuf != NULL) | |
1141 | { | |
9b409511 YQ |
1142 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1143 | xfered_len); | |
f0ba3972 | 1144 | |
9b409511 | 1145 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
c63528fc | 1146 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, *xfered_len); |
f0ba3972 PA |
1147 | } |
1148 | else | |
1149 | { | |
1150 | void *buf; | |
1151 | struct cleanup *old_chain; | |
1152 | ||
67c059c2 AB |
1153 | /* A large write request is likely to be partially satisfied |
1154 | by memory_xfer_partial_1. We will continually malloc | |
1155 | and free a copy of the entire write request for breakpoint | |
1156 | shadow handling even though we only end up writing a small | |
1157 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1158 | len = min (4096, len); | |
1159 | ||
f0ba3972 PA |
1160 | buf = xmalloc (len); |
1161 | old_chain = make_cleanup (xfree, buf); | |
1162 | memcpy (buf, writebuf, len); | |
1163 | ||
1164 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1165 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1166 | xfered_len); | |
f0ba3972 PA |
1167 | |
1168 | do_cleanups (old_chain); | |
1169 | } | |
1170 | ||
1171 | return res; | |
1172 | } | |
1173 | ||
8defab1a DJ |
1174 | static void |
1175 | restore_show_memory_breakpoints (void *arg) | |
1176 | { | |
1177 | show_memory_breakpoints = (uintptr_t) arg; | |
1178 | } | |
1179 | ||
1180 | struct cleanup * | |
1181 | make_show_memory_breakpoints_cleanup (int show) | |
1182 | { | |
1183 | int current = show_memory_breakpoints; | |
8defab1a | 1184 | |
5d502164 | 1185 | show_memory_breakpoints = show; |
8defab1a DJ |
1186 | return make_cleanup (restore_show_memory_breakpoints, |
1187 | (void *) (uintptr_t) current); | |
1188 | } | |
1189 | ||
7f79c47e DE |
1190 | /* For docs see target.h, to_xfer_partial. */ |
1191 | ||
9b409511 | 1192 | enum target_xfer_status |
27394598 AC |
1193 | target_xfer_partial (struct target_ops *ops, |
1194 | enum target_object object, const char *annex, | |
4ac248ca | 1195 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1196 | ULONGEST offset, ULONGEST len, |
1197 | ULONGEST *xfered_len) | |
27394598 | 1198 | { |
9b409511 | 1199 | enum target_xfer_status retval; |
27394598 AC |
1200 | |
1201 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1202 | |
ce6d0892 YQ |
1203 | /* Transfer is done when LEN is zero. */ |
1204 | if (len == 0) | |
9b409511 | 1205 | return TARGET_XFER_EOF; |
ce6d0892 | 1206 | |
d914c394 SS |
1207 | if (writebuf && !may_write_memory) |
1208 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1209 | core_addr_to_string_nz (offset), plongest (len)); | |
1210 | ||
9b409511 YQ |
1211 | *xfered_len = 0; |
1212 | ||
cf7a04e8 DJ |
1213 | /* If this is a memory transfer, let the memory-specific code |
1214 | have a look at it instead. Memory transfers are more | |
1215 | complicated. */ | |
29453a14 YQ |
1216 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1217 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1218 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1219 | writebuf, offset, len, xfered_len); |
9f713294 | 1220 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1221 | { |
9f713294 | 1222 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1223 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1224 | xfered_len); | |
cf7a04e8 | 1225 | } |
9f713294 YQ |
1226 | else |
1227 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1228 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1229 | |
27394598 AC |
1230 | if (targetdebug) |
1231 | { | |
1232 | const unsigned char *myaddr = NULL; | |
1233 | ||
1234 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1235 | "%s:target_xfer_partial " |
9b409511 | 1236 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1237 | ops->to_shortname, |
1238 | (int) object, | |
1239 | (annex ? annex : "(null)"), | |
53b71562 JB |
1240 | host_address_to_string (readbuf), |
1241 | host_address_to_string (writebuf), | |
0b1553bc | 1242 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1243 | pulongest (len), retval, |
1244 | pulongest (*xfered_len)); | |
27394598 AC |
1245 | |
1246 | if (readbuf) | |
1247 | myaddr = readbuf; | |
1248 | if (writebuf) | |
1249 | myaddr = writebuf; | |
9b409511 | 1250 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1251 | { |
1252 | int i; | |
2bc416ba | 1253 | |
27394598 | 1254 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1255 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1256 | { |
53b71562 | 1257 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1258 | { |
1259 | if (targetdebug < 2 && i > 0) | |
1260 | { | |
1261 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1262 | break; | |
1263 | } | |
1264 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1265 | } | |
2bc416ba | 1266 | |
27394598 AC |
1267 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1268 | } | |
1269 | } | |
2bc416ba | 1270 | |
27394598 AC |
1271 | fputc_unfiltered ('\n', gdb_stdlog); |
1272 | } | |
9b409511 YQ |
1273 | |
1274 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1275 | properly. Do assertion after printing debug messages, so that we | |
1276 | can find more clues on assertion failure from debugging messages. */ | |
bc113b4e | 1277 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_UNAVAILABLE) |
9b409511 YQ |
1278 | gdb_assert (*xfered_len > 0); |
1279 | ||
27394598 AC |
1280 | return retval; |
1281 | } | |
1282 | ||
578d3588 PA |
1283 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1284 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1285 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1286 | |
1287 | If an error occurs, no guarantee is made about the contents of the data at | |
1288 | MYADDR. In particular, the caller should not depend upon partial reads | |
1289 | filling the buffer with good data. There is no way for the caller to know | |
1290 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1291 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1292 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1293 | |
1294 | int | |
1b162304 | 1295 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1296 | { |
c35b1492 PA |
1297 | /* Dispatch to the topmost target, not the flattened current_target. |
1298 | Memory accesses check target->to_has_(all_)memory, and the | |
1299 | flattened target doesn't inherit those. */ | |
1300 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1301 | myaddr, memaddr, len) == len) |
1302 | return 0; | |
0779438d | 1303 | else |
578d3588 | 1304 | return TARGET_XFER_E_IO; |
c906108c SS |
1305 | } |
1306 | ||
aee4bf85 PA |
1307 | /* Like target_read_memory, but specify explicitly that this is a read |
1308 | from the target's raw memory. That is, this read bypasses the | |
1309 | dcache, breakpoint shadowing, etc. */ | |
1310 | ||
1311 | int | |
1312 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1313 | { | |
1314 | /* See comment in target_read_memory about why the request starts at | |
1315 | current_target.beneath. */ | |
1316 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1317 | myaddr, memaddr, len) == len) | |
1318 | return 0; | |
1319 | else | |
1320 | return TARGET_XFER_E_IO; | |
1321 | } | |
1322 | ||
4e5d721f DE |
1323 | /* Like target_read_memory, but specify explicitly that this is a read from |
1324 | the target's stack. This may trigger different cache behavior. */ | |
1325 | ||
1326 | int | |
45aa4659 | 1327 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1328 | { |
aee4bf85 PA |
1329 | /* See comment in target_read_memory about why the request starts at |
1330 | current_target.beneath. */ | |
4e5d721f DE |
1331 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1332 | myaddr, memaddr, len) == len) | |
1333 | return 0; | |
1334 | else | |
578d3588 | 1335 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1336 | } |
1337 | ||
29453a14 YQ |
1338 | /* Like target_read_memory, but specify explicitly that this is a read from |
1339 | the target's code. This may trigger different cache behavior. */ | |
1340 | ||
1341 | int | |
1342 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1343 | { | |
aee4bf85 PA |
1344 | /* See comment in target_read_memory about why the request starts at |
1345 | current_target.beneath. */ | |
29453a14 YQ |
1346 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1347 | myaddr, memaddr, len) == len) | |
1348 | return 0; | |
1349 | else | |
1350 | return TARGET_XFER_E_IO; | |
1351 | } | |
1352 | ||
7f79c47e | 1353 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1354 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1355 | error occurs. If an error occurs, no guarantee is made about how |
1356 | much data got written. Callers that can deal with partial writes | |
1357 | should call target_write. */ | |
7f79c47e | 1358 | |
c906108c | 1359 | int |
45aa4659 | 1360 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1361 | { |
aee4bf85 PA |
1362 | /* See comment in target_read_memory about why the request starts at |
1363 | current_target.beneath. */ | |
c35b1492 | 1364 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1365 | myaddr, memaddr, len) == len) |
1366 | return 0; | |
0779438d | 1367 | else |
578d3588 | 1368 | return TARGET_XFER_E_IO; |
c906108c | 1369 | } |
c5aa993b | 1370 | |
f0ba3972 | 1371 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1372 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1373 | if any error occurs. If an error occurs, no guarantee is made |
1374 | about how much data got written. Callers that can deal with | |
1375 | partial writes should call target_write. */ | |
f0ba3972 PA |
1376 | |
1377 | int | |
45aa4659 | 1378 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1379 | { |
aee4bf85 PA |
1380 | /* See comment in target_read_memory about why the request starts at |
1381 | current_target.beneath. */ | |
f0ba3972 PA |
1382 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1383 | myaddr, memaddr, len) == len) | |
1384 | return 0; | |
1385 | else | |
578d3588 | 1386 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1387 | } |
1388 | ||
fd79ecee DJ |
1389 | /* Fetch the target's memory map. */ |
1390 | ||
1391 | VEC(mem_region_s) * | |
1392 | target_memory_map (void) | |
1393 | { | |
1394 | VEC(mem_region_s) *result; | |
1395 | struct mem_region *last_one, *this_one; | |
1396 | int ix; | |
1397 | struct target_ops *t; | |
1398 | ||
1399 | if (targetdebug) | |
1400 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1401 | ||
6b2c5a57 | 1402 | result = current_target.to_memory_map (¤t_target); |
fd79ecee DJ |
1403 | if (result == NULL) |
1404 | return NULL; | |
1405 | ||
1406 | qsort (VEC_address (mem_region_s, result), | |
1407 | VEC_length (mem_region_s, result), | |
1408 | sizeof (struct mem_region), mem_region_cmp); | |
1409 | ||
1410 | /* Check that regions do not overlap. Simultaneously assign | |
1411 | a numbering for the "mem" commands to use to refer to | |
1412 | each region. */ | |
1413 | last_one = NULL; | |
1414 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1415 | { | |
1416 | this_one->number = ix; | |
1417 | ||
1418 | if (last_one && last_one->hi > this_one->lo) | |
1419 | { | |
1420 | warning (_("Overlapping regions in memory map: ignoring")); | |
1421 | VEC_free (mem_region_s, result); | |
1422 | return NULL; | |
1423 | } | |
1424 | last_one = this_one; | |
1425 | } | |
1426 | ||
1427 | return result; | |
1428 | } | |
1429 | ||
a76d924d DJ |
1430 | void |
1431 | target_flash_erase (ULONGEST address, LONGEST length) | |
1432 | { | |
e8a6c6ac TT |
1433 | if (targetdebug) |
1434 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1435 | hex_string (address), phex (length, 0)); | |
1436 | current_target.to_flash_erase (¤t_target, address, length); | |
a76d924d DJ |
1437 | } |
1438 | ||
1439 | void | |
1440 | target_flash_done (void) | |
1441 | { | |
f6fb2925 TT |
1442 | if (targetdebug) |
1443 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1444 | current_target.to_flash_done (¤t_target); | |
a76d924d DJ |
1445 | } |
1446 | ||
920d2a44 AC |
1447 | static void |
1448 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1449 | struct cmd_list_element *c, const char *value) | |
1450 | { | |
3e43a32a MS |
1451 | fprintf_filtered (file, |
1452 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1453 | value); |
1454 | } | |
3a11626d | 1455 | |
7f79c47e | 1456 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1457 | |
9b409511 | 1458 | static enum target_xfer_status |
1e3ff5ad AC |
1459 | target_read_partial (struct target_ops *ops, |
1460 | enum target_object object, | |
1b0ba102 | 1461 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1462 | ULONGEST offset, ULONGEST len, |
1463 | ULONGEST *xfered_len) | |
1e3ff5ad | 1464 | { |
9b409511 YQ |
1465 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1466 | xfered_len); | |
1e3ff5ad AC |
1467 | } |
1468 | ||
8a55ffb0 | 1469 | static enum target_xfer_status |
1e3ff5ad AC |
1470 | target_write_partial (struct target_ops *ops, |
1471 | enum target_object object, | |
1b0ba102 | 1472 | const char *annex, const gdb_byte *buf, |
9b409511 | 1473 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1474 | { |
9b409511 YQ |
1475 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1476 | xfered_len); | |
1e3ff5ad AC |
1477 | } |
1478 | ||
1479 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1480 | |
1481 | /* For docs on target_read see target.h. */ | |
1482 | ||
1e3ff5ad AC |
1483 | LONGEST |
1484 | target_read (struct target_ops *ops, | |
1485 | enum target_object object, | |
1b0ba102 | 1486 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1487 | ULONGEST offset, LONGEST len) |
1488 | { | |
1489 | LONGEST xfered = 0; | |
5d502164 | 1490 | |
1e3ff5ad AC |
1491 | while (xfered < len) |
1492 | { | |
9b409511 YQ |
1493 | ULONGEST xfered_len; |
1494 | enum target_xfer_status status; | |
1495 | ||
1496 | status = target_read_partial (ops, object, annex, | |
1497 | (gdb_byte *) buf + xfered, | |
1498 | offset + xfered, len - xfered, | |
1499 | &xfered_len); | |
5d502164 | 1500 | |
1e3ff5ad | 1501 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1502 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1503 | return xfered; |
9b409511 YQ |
1504 | else if (status == TARGET_XFER_OK) |
1505 | { | |
1506 | xfered += xfered_len; | |
1507 | QUIT; | |
1508 | } | |
1509 | else | |
0088c768 | 1510 | return -1; |
9b409511 | 1511 | |
1e3ff5ad AC |
1512 | } |
1513 | return len; | |
1514 | } | |
1515 | ||
f1a507a1 JB |
1516 | /* Assuming that the entire [begin, end) range of memory cannot be |
1517 | read, try to read whatever subrange is possible to read. | |
1518 | ||
1519 | The function returns, in RESULT, either zero or one memory block. | |
1520 | If there's a readable subrange at the beginning, it is completely | |
1521 | read and returned. Any further readable subrange will not be read. | |
1522 | Otherwise, if there's a readable subrange at the end, it will be | |
1523 | completely read and returned. Any readable subranges before it | |
1524 | (obviously, not starting at the beginning), will be ignored. In | |
1525 | other cases -- either no readable subrange, or readable subrange(s) | |
1526 | that is neither at the beginning, or end, nothing is returned. | |
1527 | ||
1528 | The purpose of this function is to handle a read across a boundary | |
1529 | of accessible memory in a case when memory map is not available. | |
1530 | The above restrictions are fine for this case, but will give | |
1531 | incorrect results if the memory is 'patchy'. However, supporting | |
1532 | 'patchy' memory would require trying to read every single byte, | |
1533 | and it seems unacceptable solution. Explicit memory map is | |
1534 | recommended for this case -- and target_read_memory_robust will | |
1535 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1536 | |
1537 | static void | |
3e43a32a MS |
1538 | read_whatever_is_readable (struct target_ops *ops, |
1539 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1540 | VEC(memory_read_result_s) **result) |
d5086790 | 1541 | { |
f1a507a1 | 1542 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1543 | ULONGEST current_begin = begin; |
1544 | ULONGEST current_end = end; | |
1545 | int forward; | |
1546 | memory_read_result_s r; | |
9b409511 | 1547 | ULONGEST xfered_len; |
8dedea02 VP |
1548 | |
1549 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1550 | if (end - begin <= 1) | |
13b3fd9b MS |
1551 | { |
1552 | xfree (buf); | |
1553 | return; | |
1554 | } | |
8dedea02 VP |
1555 | |
1556 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1557 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1558 | at the boundary of accessible region. */ |
1559 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 1560 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1561 | { |
1562 | forward = 1; | |
1563 | ++current_begin; | |
1564 | } | |
1565 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1566 | buf + (end-begin) - 1, end - 1, 1, |
1567 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
1568 | { |
1569 | forward = 0; | |
1570 | --current_end; | |
1571 | } | |
1572 | else | |
1573 | { | |
13b3fd9b | 1574 | xfree (buf); |
8dedea02 VP |
1575 | return; |
1576 | } | |
1577 | ||
1578 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1579 | found to be not readable as a whole. | |
1580 | ||
1581 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1582 | so there's no point trying further. */ | |
1583 | while (current_end - current_begin > 1) | |
1584 | { | |
1585 | ULONGEST first_half_begin, first_half_end; | |
1586 | ULONGEST second_half_begin, second_half_end; | |
1587 | LONGEST xfer; | |
8dedea02 | 1588 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 1589 | |
8dedea02 VP |
1590 | if (forward) |
1591 | { | |
1592 | first_half_begin = current_begin; | |
1593 | first_half_end = middle; | |
1594 | second_half_begin = middle; | |
1595 | second_half_end = current_end; | |
1596 | } | |
1597 | else | |
1598 | { | |
1599 | first_half_begin = middle; | |
1600 | first_half_end = current_end; | |
1601 | second_half_begin = current_begin; | |
1602 | second_half_end = middle; | |
1603 | } | |
1604 | ||
1605 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1606 | buf + (first_half_begin - begin), | |
1607 | first_half_begin, | |
1608 | first_half_end - first_half_begin); | |
1609 | ||
1610 | if (xfer == first_half_end - first_half_begin) | |
1611 | { | |
c378eb4e | 1612 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 1613 | other half. */ |
8dedea02 VP |
1614 | current_begin = second_half_begin; |
1615 | current_end = second_half_end; | |
1616 | } | |
1617 | else | |
1618 | { | |
c378eb4e MS |
1619 | /* This half is not readable. Because we've tried one byte, we |
1620 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
1621 | iteration to divide again and try to read. |
1622 | ||
1623 | We don't handle the other half, because this function only tries | |
1624 | to read a single readable subrange. */ | |
1625 | current_begin = first_half_begin; | |
1626 | current_end = first_half_end; | |
1627 | } | |
1628 | } | |
1629 | ||
1630 | if (forward) | |
1631 | { | |
1632 | /* The [begin, current_begin) range has been read. */ | |
1633 | r.begin = begin; | |
1634 | r.end = current_begin; | |
1635 | r.data = buf; | |
1636 | } | |
1637 | else | |
1638 | { | |
1639 | /* The [current_end, end) range has been read. */ | |
1640 | LONGEST rlen = end - current_end; | |
f1a507a1 | 1641 | |
8dedea02 VP |
1642 | r.data = xmalloc (rlen); |
1643 | memcpy (r.data, buf + current_end - begin, rlen); | |
1644 | r.begin = current_end; | |
1645 | r.end = end; | |
1646 | xfree (buf); | |
1647 | } | |
1648 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
1649 | } | |
1650 | ||
1651 | void | |
1652 | free_memory_read_result_vector (void *x) | |
1653 | { | |
1654 | VEC(memory_read_result_s) *v = x; | |
1655 | memory_read_result_s *current; | |
1656 | int ix; | |
1657 | ||
1658 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
1659 | { | |
1660 | xfree (current->data); | |
1661 | } | |
1662 | VEC_free (memory_read_result_s, v); | |
1663 | } | |
1664 | ||
1665 | VEC(memory_read_result_s) * | |
1666 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
1667 | { | |
1668 | VEC(memory_read_result_s) *result = 0; | |
1669 | ||
1670 | LONGEST xfered = 0; | |
d5086790 VP |
1671 | while (xfered < len) |
1672 | { | |
8dedea02 VP |
1673 | struct mem_region *region = lookup_mem_region (offset + xfered); |
1674 | LONGEST rlen; | |
5d502164 | 1675 | |
8dedea02 VP |
1676 | /* If there is no explicit region, a fake one should be created. */ |
1677 | gdb_assert (region); | |
1678 | ||
1679 | if (region->hi == 0) | |
1680 | rlen = len - xfered; | |
1681 | else | |
1682 | rlen = region->hi - offset; | |
1683 | ||
1684 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 1685 | { |
c378eb4e | 1686 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
1687 | if the region is explicitly marked inaccessible, or |
1688 | 'inaccessible-by-default' is in effect. */ | |
1689 | xfered += rlen; | |
1690 | } | |
1691 | else | |
1692 | { | |
1693 | LONGEST to_read = min (len - xfered, rlen); | |
1694 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
1695 | ||
1696 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1697 | (gdb_byte *) buffer, | |
1698 | offset + xfered, to_read); | |
1699 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 1700 | if (xfer <= 0) |
d5086790 | 1701 | { |
c378eb4e | 1702 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
1703 | some subrange. */ |
1704 | xfree (buffer); | |
3e43a32a MS |
1705 | read_whatever_is_readable (ops, offset + xfered, |
1706 | offset + xfered + to_read, &result); | |
8dedea02 | 1707 | xfered += to_read; |
d5086790 | 1708 | } |
8dedea02 VP |
1709 | else |
1710 | { | |
1711 | struct memory_read_result r; | |
1712 | r.data = buffer; | |
1713 | r.begin = offset + xfered; | |
1714 | r.end = r.begin + xfer; | |
1715 | VEC_safe_push (memory_read_result_s, result, &r); | |
1716 | xfered += xfer; | |
1717 | } | |
1718 | QUIT; | |
d5086790 | 1719 | } |
d5086790 | 1720 | } |
8dedea02 | 1721 | return result; |
d5086790 VP |
1722 | } |
1723 | ||
8dedea02 | 1724 | |
cf7a04e8 DJ |
1725 | /* An alternative to target_write with progress callbacks. */ |
1726 | ||
1e3ff5ad | 1727 | LONGEST |
cf7a04e8 DJ |
1728 | target_write_with_progress (struct target_ops *ops, |
1729 | enum target_object object, | |
1730 | const char *annex, const gdb_byte *buf, | |
1731 | ULONGEST offset, LONGEST len, | |
1732 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
1733 | { |
1734 | LONGEST xfered = 0; | |
a76d924d DJ |
1735 | |
1736 | /* Give the progress callback a chance to set up. */ | |
1737 | if (progress) | |
1738 | (*progress) (0, baton); | |
1739 | ||
1e3ff5ad AC |
1740 | while (xfered < len) |
1741 | { | |
9b409511 YQ |
1742 | ULONGEST xfered_len; |
1743 | enum target_xfer_status status; | |
1744 | ||
1745 | status = target_write_partial (ops, object, annex, | |
1746 | (gdb_byte *) buf + xfered, | |
1747 | offset + xfered, len - xfered, | |
1748 | &xfered_len); | |
cf7a04e8 | 1749 | |
5c328c05 YQ |
1750 | if (status != TARGET_XFER_OK) |
1751 | return status == TARGET_XFER_EOF ? xfered : -1; | |
cf7a04e8 DJ |
1752 | |
1753 | if (progress) | |
9b409511 | 1754 | (*progress) (xfered_len, baton); |
cf7a04e8 | 1755 | |
9b409511 | 1756 | xfered += xfered_len; |
1e3ff5ad AC |
1757 | QUIT; |
1758 | } | |
1759 | return len; | |
1760 | } | |
1761 | ||
7f79c47e DE |
1762 | /* For docs on target_write see target.h. */ |
1763 | ||
cf7a04e8 DJ |
1764 | LONGEST |
1765 | target_write (struct target_ops *ops, | |
1766 | enum target_object object, | |
1767 | const char *annex, const gdb_byte *buf, | |
1768 | ULONGEST offset, LONGEST len) | |
1769 | { | |
1770 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1771 | NULL, NULL); | |
1772 | } | |
1773 | ||
159f81f3 DJ |
1774 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1775 | the size of the transferred data. PADDING additional bytes are | |
1776 | available in *BUF_P. This is a helper function for | |
1777 | target_read_alloc; see the declaration of that function for more | |
1778 | information. */ | |
13547ab6 | 1779 | |
159f81f3 DJ |
1780 | static LONGEST |
1781 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
1782 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
1783 | { |
1784 | size_t buf_alloc, buf_pos; | |
1785 | gdb_byte *buf; | |
13547ab6 DJ |
1786 | |
1787 | /* This function does not have a length parameter; it reads the | |
1788 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1789 | from one target and partly from another (in a different stratum, | |
1790 | e.g. a core file and an executable). Both reasons make it | |
1791 | unsuitable for reading memory. */ | |
1792 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1793 | ||
1794 | /* Start by reading up to 4K at a time. The target will throttle | |
1795 | this number down if necessary. */ | |
1796 | buf_alloc = 4096; | |
1797 | buf = xmalloc (buf_alloc); | |
1798 | buf_pos = 0; | |
1799 | while (1) | |
1800 | { | |
9b409511 YQ |
1801 | ULONGEST xfered_len; |
1802 | enum target_xfer_status status; | |
1803 | ||
1804 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
1805 | buf_pos, buf_alloc - buf_pos - padding, | |
1806 | &xfered_len); | |
1807 | ||
1808 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
1809 | { |
1810 | /* Read all there was. */ | |
1811 | if (buf_pos == 0) | |
1812 | xfree (buf); | |
1813 | else | |
1814 | *buf_p = buf; | |
1815 | return buf_pos; | |
1816 | } | |
9b409511 YQ |
1817 | else if (status != TARGET_XFER_OK) |
1818 | { | |
1819 | /* An error occurred. */ | |
1820 | xfree (buf); | |
1821 | return TARGET_XFER_E_IO; | |
1822 | } | |
13547ab6 | 1823 | |
9b409511 | 1824 | buf_pos += xfered_len; |
13547ab6 DJ |
1825 | |
1826 | /* If the buffer is filling up, expand it. */ | |
1827 | if (buf_alloc < buf_pos * 2) | |
1828 | { | |
1829 | buf_alloc *= 2; | |
1830 | buf = xrealloc (buf, buf_alloc); | |
1831 | } | |
1832 | ||
1833 | QUIT; | |
1834 | } | |
1835 | } | |
1836 | ||
159f81f3 DJ |
1837 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1838 | the size of the transferred data. See the declaration in "target.h" | |
1839 | function for more information about the return value. */ | |
1840 | ||
1841 | LONGEST | |
1842 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
1843 | const char *annex, gdb_byte **buf_p) | |
1844 | { | |
1845 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
1846 | } | |
1847 | ||
1848 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
1849 | returned as a string, allocated using xmalloc. If an error occurs | |
1850 | or the transfer is unsupported, NULL is returned. Empty objects | |
1851 | are returned as allocated but empty strings. A warning is issued | |
1852 | if the result contains any embedded NUL bytes. */ | |
1853 | ||
1854 | char * | |
1855 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
1856 | const char *annex) | |
1857 | { | |
39086a0e PA |
1858 | gdb_byte *buffer; |
1859 | char *bufstr; | |
7313baad | 1860 | LONGEST i, transferred; |
159f81f3 | 1861 | |
39086a0e PA |
1862 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
1863 | bufstr = (char *) buffer; | |
159f81f3 DJ |
1864 | |
1865 | if (transferred < 0) | |
1866 | return NULL; | |
1867 | ||
1868 | if (transferred == 0) | |
1869 | return xstrdup (""); | |
1870 | ||
39086a0e | 1871 | bufstr[transferred] = 0; |
7313baad UW |
1872 | |
1873 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
1874 | for (i = strlen (bufstr); i < transferred; i++) |
1875 | if (bufstr[i] != 0) | |
7313baad UW |
1876 | { |
1877 | warning (_("target object %d, annex %s, " | |
1878 | "contained unexpected null characters"), | |
1879 | (int) object, annex ? annex : "(none)"); | |
1880 | break; | |
1881 | } | |
159f81f3 | 1882 | |
39086a0e | 1883 | return bufstr; |
159f81f3 DJ |
1884 | } |
1885 | ||
b6591e8b AC |
1886 | /* Memory transfer methods. */ |
1887 | ||
1888 | void | |
1b0ba102 | 1889 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1890 | LONGEST len) |
1891 | { | |
07b82ea5 PA |
1892 | /* This method is used to read from an alternate, non-current |
1893 | target. This read must bypass the overlay support (as symbols | |
1894 | don't match this target), and GDB's internal cache (wrong cache | |
1895 | for this target). */ | |
1896 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 1897 | != len) |
578d3588 | 1898 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
1899 | } |
1900 | ||
1901 | ULONGEST | |
5d502164 MS |
1902 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
1903 | int len, enum bfd_endian byte_order) | |
b6591e8b | 1904 | { |
f6519ebc | 1905 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1906 | |
1907 | gdb_assert (len <= sizeof (buf)); | |
1908 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 1909 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
1910 | } |
1911 | ||
3db08215 MM |
1912 | /* See target.h. */ |
1913 | ||
d914c394 SS |
1914 | int |
1915 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
1916 | struct bp_target_info *bp_tgt) | |
1917 | { | |
1918 | if (!may_insert_breakpoints) | |
1919 | { | |
1920 | warning (_("May not insert breakpoints")); | |
1921 | return 1; | |
1922 | } | |
1923 | ||
6b84065d TT |
1924 | return current_target.to_insert_breakpoint (¤t_target, |
1925 | gdbarch, bp_tgt); | |
d914c394 SS |
1926 | } |
1927 | ||
3db08215 MM |
1928 | /* See target.h. */ |
1929 | ||
d914c394 | 1930 | int |
6b84065d TT |
1931 | target_remove_breakpoint (struct gdbarch *gdbarch, |
1932 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
1933 | { |
1934 | /* This is kind of a weird case to handle, but the permission might | |
1935 | have been changed after breakpoints were inserted - in which case | |
1936 | we should just take the user literally and assume that any | |
1937 | breakpoints should be left in place. */ | |
1938 | if (!may_insert_breakpoints) | |
1939 | { | |
1940 | warning (_("May not remove breakpoints")); | |
1941 | return 1; | |
1942 | } | |
1943 | ||
6b84065d TT |
1944 | return current_target.to_remove_breakpoint (¤t_target, |
1945 | gdbarch, bp_tgt); | |
d914c394 SS |
1946 | } |
1947 | ||
c906108c | 1948 | static void |
fba45db2 | 1949 | target_info (char *args, int from_tty) |
c906108c SS |
1950 | { |
1951 | struct target_ops *t; | |
c906108c | 1952 | int has_all_mem = 0; |
c5aa993b | 1953 | |
c906108c | 1954 | if (symfile_objfile != NULL) |
4262abfb JK |
1955 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
1956 | objfile_name (symfile_objfile)); | |
c906108c | 1957 | |
258b763a | 1958 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1959 | { |
c35b1492 | 1960 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
1961 | continue; |
1962 | ||
c5aa993b | 1963 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1964 | continue; |
1965 | if (has_all_mem) | |
3e43a32a MS |
1966 | printf_unfiltered (_("\tWhile running this, " |
1967 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
1968 | printf_unfiltered ("%s:\n", t->to_longname); |
1969 | (t->to_files_info) (t); | |
c35b1492 | 1970 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
1971 | } |
1972 | } | |
1973 | ||
fd79ecee DJ |
1974 | /* This function is called before any new inferior is created, e.g. |
1975 | by running a program, attaching, or connecting to a target. | |
1976 | It cleans up any state from previous invocations which might | |
1977 | change between runs. This is a subset of what target_preopen | |
1978 | resets (things which might change between targets). */ | |
1979 | ||
1980 | void | |
1981 | target_pre_inferior (int from_tty) | |
1982 | { | |
c378eb4e | 1983 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 1984 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 1985 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
1986 | to reproduce: |
1987 | ||
1988 | bash$ ./foo& | |
1989 | [1] 4711 | |
1990 | bash$ ./foo& | |
1991 | [1] 4712 | |
1992 | bash$ gdb ./foo | |
1993 | [...] | |
1994 | (gdb) attach 4711 | |
1995 | (gdb) detach | |
1996 | (gdb) attach 4712 | |
1997 | Cannot access memory at address 0xdeadbeef | |
1998 | */ | |
b9db4ced | 1999 | |
50c71eaf PA |
2000 | /* In some OSs, the shared library list is the same/global/shared |
2001 | across inferiors. If code is shared between processes, so are | |
2002 | memory regions and features. */ | |
f5656ead | 2003 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2004 | { |
2005 | no_shared_libraries (NULL, from_tty); | |
2006 | ||
2007 | invalidate_target_mem_regions (); | |
424163ea | 2008 | |
50c71eaf PA |
2009 | target_clear_description (); |
2010 | } | |
8ffcbaaf YQ |
2011 | |
2012 | agent_capability_invalidate (); | |
fd79ecee DJ |
2013 | } |
2014 | ||
b8fa0bfa PA |
2015 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2016 | inferior. */ | |
2017 | ||
2018 | static int | |
2019 | dispose_inferior (struct inferior *inf, void *args) | |
2020 | { | |
2021 | struct thread_info *thread; | |
2022 | ||
2023 | thread = any_thread_of_process (inf->pid); | |
2024 | if (thread) | |
2025 | { | |
2026 | switch_to_thread (thread->ptid); | |
2027 | ||
2028 | /* Core inferiors actually should be detached, not killed. */ | |
2029 | if (target_has_execution) | |
2030 | target_kill (); | |
2031 | else | |
2032 | target_detach (NULL, 0); | |
2033 | } | |
2034 | ||
2035 | return 0; | |
2036 | } | |
2037 | ||
c906108c SS |
2038 | /* This is to be called by the open routine before it does |
2039 | anything. */ | |
2040 | ||
2041 | void | |
fba45db2 | 2042 | target_preopen (int from_tty) |
c906108c | 2043 | { |
c5aa993b | 2044 | dont_repeat (); |
c906108c | 2045 | |
b8fa0bfa | 2046 | if (have_inferiors ()) |
c5aa993b | 2047 | { |
adf40b2e | 2048 | if (!from_tty |
b8fa0bfa PA |
2049 | || !have_live_inferiors () |
2050 | || query (_("A program is being debugged already. Kill it? "))) | |
2051 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2052 | else |
8a3fe4f8 | 2053 | error (_("Program not killed.")); |
c906108c SS |
2054 | } |
2055 | ||
2056 | /* Calling target_kill may remove the target from the stack. But if | |
2057 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2058 | /* Leave the exec target, though. The user may be switching from a |
2059 | live process to a core of the same program. */ | |
460014f5 | 2060 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2061 | |
2062 | target_pre_inferior (from_tty); | |
c906108c SS |
2063 | } |
2064 | ||
2065 | /* Detach a target after doing deferred register stores. */ | |
2066 | ||
2067 | void | |
52554a0e | 2068 | target_detach (const char *args, int from_tty) |
c906108c | 2069 | { |
136d6dae VP |
2070 | struct target_ops* t; |
2071 | ||
f5656ead | 2072 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2073 | /* Don't remove global breakpoints here. They're removed on |
2074 | disconnection from the target. */ | |
2075 | ; | |
2076 | else | |
2077 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2078 | them before detaching. */ | |
dfd4cc63 | 2079 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2080 | |
24291992 PA |
2081 | prepare_for_detach (); |
2082 | ||
09da0d0a TT |
2083 | current_target.to_detach (¤t_target, args, from_tty); |
2084 | if (targetdebug) | |
2085 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2086 | args, from_tty); | |
c906108c SS |
2087 | } |
2088 | ||
6ad8ae5c DJ |
2089 | void |
2090 | target_disconnect (char *args, int from_tty) | |
2091 | { | |
50c71eaf PA |
2092 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2093 | are global across processes, we have to remove them before | |
2094 | disconnecting. */ | |
74960c60 VP |
2095 | remove_breakpoints (); |
2096 | ||
86a0854a TT |
2097 | if (targetdebug) |
2098 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2099 | args, from_tty); | |
2100 | current_target.to_disconnect (¤t_target, args, from_tty); | |
6ad8ae5c DJ |
2101 | } |
2102 | ||
117de6a9 | 2103 | ptid_t |
47608cb1 | 2104 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2105 | { |
2106 | struct target_ops *t; | |
6b84065d TT |
2107 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2108 | status, options); | |
117de6a9 | 2109 | |
6b84065d | 2110 | if (targetdebug) |
117de6a9 | 2111 | { |
6b84065d TT |
2112 | char *status_string; |
2113 | char *options_string; | |
117de6a9 | 2114 | |
6b84065d TT |
2115 | status_string = target_waitstatus_to_string (status); |
2116 | options_string = target_options_to_string (options); | |
2117 | fprintf_unfiltered (gdb_stdlog, | |
2118 | "target_wait (%d, status, options={%s})" | |
2119 | " = %d, %s\n", | |
2120 | ptid_get_pid (ptid), options_string, | |
2121 | ptid_get_pid (retval), status_string); | |
2122 | xfree (status_string); | |
2123 | xfree (options_string); | |
117de6a9 PA |
2124 | } |
2125 | ||
6b84065d | 2126 | return retval; |
117de6a9 PA |
2127 | } |
2128 | ||
2129 | char * | |
2130 | target_pid_to_str (ptid_t ptid) | |
2131 | { | |
770234d3 | 2132 | return (*current_target.to_pid_to_str) (¤t_target, ptid); |
117de6a9 PA |
2133 | } |
2134 | ||
4694da01 TT |
2135 | char * |
2136 | target_thread_name (struct thread_info *info) | |
2137 | { | |
825828fc | 2138 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2139 | } |
2140 | ||
e1ac3328 | 2141 | void |
2ea28649 | 2142 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2143 | { |
28439f5e PA |
2144 | struct target_ops *t; |
2145 | ||
4e5d721f | 2146 | target_dcache_invalidate (); |
28439f5e | 2147 | |
6b84065d TT |
2148 | current_target.to_resume (¤t_target, ptid, step, signal); |
2149 | if (targetdebug) | |
2150 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2151 | ptid_get_pid (ptid), | |
2152 | step ? "step" : "continue", | |
2153 | gdb_signal_to_name (signal)); | |
28439f5e | 2154 | |
6b84065d | 2155 | registers_changed_ptid (ptid); |
251bde03 PA |
2156 | /* We only set the internal executing state here. The user/frontend |
2157 | running state is set at a higher level. */ | |
6b84065d | 2158 | set_executing (ptid, 1); |
6b84065d | 2159 | clear_inline_frame_state (ptid); |
e1ac3328 | 2160 | } |
2455069d UW |
2161 | |
2162 | void | |
2163 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2164 | { | |
035cad7f | 2165 | if (targetdebug) |
2455069d | 2166 | { |
035cad7f | 2167 | int i; |
2455069d | 2168 | |
035cad7f TT |
2169 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", |
2170 | numsigs); | |
2455069d | 2171 | |
035cad7f TT |
2172 | for (i = 0; i < numsigs; i++) |
2173 | if (pass_signals[i]) | |
2174 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2175 | gdb_signal_to_name (i)); | |
2455069d | 2176 | |
035cad7f | 2177 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
2455069d | 2178 | } |
035cad7f TT |
2179 | |
2180 | (*current_target.to_pass_signals) (¤t_target, numsigs, pass_signals); | |
2455069d UW |
2181 | } |
2182 | ||
9b224c5e PA |
2183 | void |
2184 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2185 | { | |
7d4f8efa | 2186 | if (targetdebug) |
9b224c5e | 2187 | { |
7d4f8efa | 2188 | int i; |
9b224c5e | 2189 | |
7d4f8efa TT |
2190 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", |
2191 | numsigs); | |
9b224c5e | 2192 | |
7d4f8efa TT |
2193 | for (i = 0; i < numsigs; i++) |
2194 | if (program_signals[i]) | |
2195 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2196 | gdb_signal_to_name (i)); | |
9b224c5e | 2197 | |
7d4f8efa | 2198 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
9b224c5e | 2199 | } |
7d4f8efa TT |
2200 | |
2201 | (*current_target.to_program_signals) (¤t_target, | |
2202 | numsigs, program_signals); | |
9b224c5e PA |
2203 | } |
2204 | ||
098dba18 TT |
2205 | static int |
2206 | default_follow_fork (struct target_ops *self, int follow_child, | |
2207 | int detach_fork) | |
2208 | { | |
2209 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2210 | internal_error (__FILE__, __LINE__, | |
2211 | _("could not find a target to follow fork")); | |
2212 | } | |
2213 | ||
ee057212 DJ |
2214 | /* Look through the list of possible targets for a target that can |
2215 | follow forks. */ | |
2216 | ||
2217 | int | |
07107ca6 | 2218 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 | 2219 | { |
098dba18 TT |
2220 | int retval = current_target.to_follow_fork (¤t_target, |
2221 | follow_child, detach_fork); | |
ee057212 | 2222 | |
098dba18 TT |
2223 | if (targetdebug) |
2224 | fprintf_unfiltered (gdb_stdlog, | |
2225 | "target_follow_fork (%d, %d) = %d\n", | |
2226 | follow_child, detach_fork, retval); | |
2227 | return retval; | |
ee057212 DJ |
2228 | } |
2229 | ||
8d657035 TT |
2230 | static void |
2231 | default_mourn_inferior (struct target_ops *self) | |
2232 | { | |
2233 | internal_error (__FILE__, __LINE__, | |
2234 | _("could not find a target to follow mourn inferior")); | |
2235 | } | |
2236 | ||
136d6dae VP |
2237 | void |
2238 | target_mourn_inferior (void) | |
2239 | { | |
8d657035 TT |
2240 | current_target.to_mourn_inferior (¤t_target); |
2241 | if (targetdebug) | |
2242 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
136d6dae | 2243 | |
8d657035 TT |
2244 | /* We no longer need to keep handles on any of the object files. |
2245 | Make sure to release them to avoid unnecessarily locking any | |
2246 | of them while we're not actually debugging. */ | |
2247 | bfd_cache_close_all (); | |
136d6dae VP |
2248 | } |
2249 | ||
424163ea DJ |
2250 | /* Look for a target which can describe architectural features, starting |
2251 | from TARGET. If we find one, return its description. */ | |
2252 | ||
2253 | const struct target_desc * | |
2254 | target_read_description (struct target_ops *target) | |
2255 | { | |
2117c711 | 2256 | return target->to_read_description (target); |
424163ea DJ |
2257 | } |
2258 | ||
58a5184e | 2259 | /* This implements a basic search of memory, reading target memory and |
08388c79 DE |
2260 | performing the search here (as opposed to performing the search in on the |
2261 | target side with, for example, gdbserver). */ | |
2262 | ||
2263 | int | |
2264 | simple_search_memory (struct target_ops *ops, | |
2265 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2266 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2267 | CORE_ADDR *found_addrp) | |
2268 | { | |
2269 | /* NOTE: also defined in find.c testcase. */ | |
2270 | #define SEARCH_CHUNK_SIZE 16000 | |
2271 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2272 | /* Buffer to hold memory contents for searching. */ | |
2273 | gdb_byte *search_buf; | |
2274 | unsigned search_buf_size; | |
2275 | struct cleanup *old_cleanups; | |
2276 | ||
2277 | search_buf_size = chunk_size + pattern_len - 1; | |
2278 | ||
2279 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2280 | if (search_space_len < search_buf_size) | |
2281 | search_buf_size = search_space_len; | |
2282 | ||
2283 | search_buf = malloc (search_buf_size); | |
2284 | if (search_buf == NULL) | |
5e1471f5 | 2285 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2286 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2287 | ||
2288 | /* Prime the search buffer. */ | |
2289 | ||
2290 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2291 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2292 | { | |
b3dc46ff AB |
2293 | warning (_("Unable to access %s bytes of target " |
2294 | "memory at %s, halting search."), | |
2295 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2296 | do_cleanups (old_cleanups); |
2297 | return -1; | |
2298 | } | |
2299 | ||
2300 | /* Perform the search. | |
2301 | ||
2302 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2303 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2304 | read in another N bytes. */ | |
2305 | ||
2306 | while (search_space_len >= pattern_len) | |
2307 | { | |
2308 | gdb_byte *found_ptr; | |
2309 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2310 | ||
2311 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2312 | pattern, pattern_len); | |
2313 | ||
2314 | if (found_ptr != NULL) | |
2315 | { | |
2316 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2317 | |
08388c79 DE |
2318 | *found_addrp = found_addr; |
2319 | do_cleanups (old_cleanups); | |
2320 | return 1; | |
2321 | } | |
2322 | ||
2323 | /* Not found in this chunk, skip to next chunk. */ | |
2324 | ||
2325 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2326 | if (search_space_len >= chunk_size) | |
2327 | search_space_len -= chunk_size; | |
2328 | else | |
2329 | search_space_len = 0; | |
2330 | ||
2331 | if (search_space_len >= pattern_len) | |
2332 | { | |
2333 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2334 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2335 | int nr_to_read; |
2336 | ||
2337 | /* Copy the trailing part of the previous iteration to the front | |
2338 | of the buffer for the next iteration. */ | |
2339 | gdb_assert (keep_len == pattern_len - 1); | |
2340 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2341 | ||
2342 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2343 | ||
2344 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2345 | search_buf + keep_len, read_addr, | |
2346 | nr_to_read) != nr_to_read) | |
2347 | { | |
b3dc46ff | 2348 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2349 | "memory at %s, halting search."), |
b3dc46ff | 2350 | plongest (nr_to_read), |
08388c79 DE |
2351 | hex_string (read_addr)); |
2352 | do_cleanups (old_cleanups); | |
2353 | return -1; | |
2354 | } | |
2355 | ||
2356 | start_addr += chunk_size; | |
2357 | } | |
2358 | } | |
2359 | ||
2360 | /* Not found. */ | |
2361 | ||
2362 | do_cleanups (old_cleanups); | |
2363 | return 0; | |
2364 | } | |
2365 | ||
58a5184e TT |
2366 | /* Default implementation of memory-searching. */ |
2367 | ||
2368 | static int | |
2369 | default_search_memory (struct target_ops *self, | |
2370 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2371 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2372 | CORE_ADDR *found_addrp) | |
2373 | { | |
2374 | /* Start over from the top of the target stack. */ | |
2375 | return simple_search_memory (current_target.beneath, | |
2376 | start_addr, search_space_len, | |
2377 | pattern, pattern_len, found_addrp); | |
2378 | } | |
2379 | ||
08388c79 DE |
2380 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
2381 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2382 | ||
2383 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2384 | requiring halting of the search (e.g. memory read error). | |
2385 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2386 | ||
2387 | int | |
2388 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2389 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2390 | CORE_ADDR *found_addrp) | |
2391 | { | |
08388c79 DE |
2392 | int found; |
2393 | ||
08388c79 DE |
2394 | if (targetdebug) |
2395 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2396 | hex_string (start_addr)); | |
2397 | ||
58a5184e TT |
2398 | found = current_target.to_search_memory (¤t_target, start_addr, |
2399 | search_space_len, | |
2400 | pattern, pattern_len, found_addrp); | |
08388c79 DE |
2401 | |
2402 | if (targetdebug) | |
2403 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2404 | ||
2405 | return found; | |
2406 | } | |
2407 | ||
8edfe269 DJ |
2408 | /* Look through the currently pushed targets. If none of them will |
2409 | be able to restart the currently running process, issue an error | |
2410 | message. */ | |
2411 | ||
2412 | void | |
2413 | target_require_runnable (void) | |
2414 | { | |
2415 | struct target_ops *t; | |
2416 | ||
2417 | for (t = target_stack; t != NULL; t = t->beneath) | |
2418 | { | |
2419 | /* If this target knows how to create a new program, then | |
2420 | assume we will still be able to after killing the current | |
2421 | one. Either killing and mourning will not pop T, or else | |
2422 | find_default_run_target will find it again. */ | |
2423 | if (t->to_create_inferior != NULL) | |
2424 | return; | |
2425 | ||
2426 | /* Do not worry about thread_stratum targets that can not | |
2427 | create inferiors. Assume they will be pushed again if | |
2428 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2429 | if (t->to_stratum == thread_stratum |
2430 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2431 | continue; |
2432 | ||
3e43a32a MS |
2433 | error (_("The \"%s\" target does not support \"run\". " |
2434 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2435 | t->to_shortname); |
2436 | } | |
2437 | ||
2438 | /* This function is only called if the target is running. In that | |
2439 | case there should have been a process_stratum target and it | |
c378eb4e | 2440 | should either know how to create inferiors, or not... */ |
9b20d036 | 2441 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2442 | } |
2443 | ||
6a3cb8e8 PA |
2444 | /* Whether GDB is allowed to fall back to the default run target for |
2445 | "run", "attach", etc. when no target is connected yet. */ | |
2446 | static int auto_connect_native_target = 1; | |
2447 | ||
2448 | static void | |
2449 | show_auto_connect_native_target (struct ui_file *file, int from_tty, | |
2450 | struct cmd_list_element *c, const char *value) | |
2451 | { | |
2452 | fprintf_filtered (file, | |
2453 | _("Whether GDB may automatically connect to the " | |
2454 | "native target is %s.\n"), | |
2455 | value); | |
2456 | } | |
2457 | ||
c906108c SS |
2458 | /* Look through the list of possible targets for a target that can |
2459 | execute a run or attach command without any other data. This is | |
2460 | used to locate the default process stratum. | |
2461 | ||
5f667f2d PA |
2462 | If DO_MESG is not NULL, the result is always valid (error() is |
2463 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2464 | |
2465 | static struct target_ops * | |
fba45db2 | 2466 | find_default_run_target (char *do_mesg) |
c906108c | 2467 | { |
c906108c | 2468 | struct target_ops *runable = NULL; |
c906108c | 2469 | |
6a3cb8e8 | 2470 | if (auto_connect_native_target) |
c906108c | 2471 | { |
6a3cb8e8 PA |
2472 | struct target_ops **t; |
2473 | int count = 0; | |
2474 | ||
2475 | for (t = target_structs; t < target_structs + target_struct_size; | |
2476 | ++t) | |
c906108c | 2477 | { |
6a3cb8e8 PA |
2478 | if ((*t)->to_can_run != delegate_can_run && target_can_run (*t)) |
2479 | { | |
2480 | runable = *t; | |
2481 | ++count; | |
2482 | } | |
c906108c | 2483 | } |
6a3cb8e8 PA |
2484 | |
2485 | if (count != 1) | |
2486 | runable = NULL; | |
c906108c SS |
2487 | } |
2488 | ||
6a3cb8e8 | 2489 | if (runable == NULL) |
5f667f2d PA |
2490 | { |
2491 | if (do_mesg) | |
2492 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2493 | else | |
2494 | return NULL; | |
2495 | } | |
c906108c SS |
2496 | |
2497 | return runable; | |
2498 | } | |
2499 | ||
b3ccfe11 | 2500 | /* See target.h. */ |
c906108c | 2501 | |
b3ccfe11 TT |
2502 | struct target_ops * |
2503 | find_attach_target (void) | |
c906108c SS |
2504 | { |
2505 | struct target_ops *t; | |
2506 | ||
b3ccfe11 TT |
2507 | /* If a target on the current stack can attach, use it. */ |
2508 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2509 | { | |
2510 | if (t->to_attach != NULL) | |
2511 | break; | |
2512 | } | |
c906108c | 2513 | |
b3ccfe11 TT |
2514 | /* Otherwise, use the default run target for attaching. */ |
2515 | if (t == NULL) | |
2516 | t = find_default_run_target ("attach"); | |
b84876c2 | 2517 | |
b3ccfe11 | 2518 | return t; |
b84876c2 PA |
2519 | } |
2520 | ||
b3ccfe11 | 2521 | /* See target.h. */ |
b84876c2 | 2522 | |
b3ccfe11 TT |
2523 | struct target_ops * |
2524 | find_run_target (void) | |
9908b566 VP |
2525 | { |
2526 | struct target_ops *t; | |
2527 | ||
b3ccfe11 TT |
2528 | /* If a target on the current stack can attach, use it. */ |
2529 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2530 | { | |
2531 | if (t->to_create_inferior != NULL) | |
2532 | break; | |
2533 | } | |
5d502164 | 2534 | |
b3ccfe11 TT |
2535 | /* Otherwise, use the default run target. */ |
2536 | if (t == NULL) | |
2537 | t = find_default_run_target ("run"); | |
9908b566 | 2538 | |
b3ccfe11 | 2539 | return t; |
9908b566 VP |
2540 | } |
2541 | ||
145b16a9 UW |
2542 | /* Implement the "info proc" command. */ |
2543 | ||
451b7c33 | 2544 | int |
145b16a9 UW |
2545 | target_info_proc (char *args, enum info_proc_what what) |
2546 | { | |
2547 | struct target_ops *t; | |
2548 | ||
2549 | /* If we're already connected to something that can get us OS | |
2550 | related data, use it. Otherwise, try using the native | |
2551 | target. */ | |
2552 | if (current_target.to_stratum >= process_stratum) | |
2553 | t = current_target.beneath; | |
2554 | else | |
2555 | t = find_default_run_target (NULL); | |
2556 | ||
2557 | for (; t != NULL; t = t->beneath) | |
2558 | { | |
2559 | if (t->to_info_proc != NULL) | |
2560 | { | |
2561 | t->to_info_proc (t, args, what); | |
2562 | ||
2563 | if (targetdebug) | |
2564 | fprintf_unfiltered (gdb_stdlog, | |
2565 | "target_info_proc (\"%s\", %d)\n", args, what); | |
2566 | ||
451b7c33 | 2567 | return 1; |
145b16a9 UW |
2568 | } |
2569 | } | |
2570 | ||
451b7c33 | 2571 | return 0; |
145b16a9 UW |
2572 | } |
2573 | ||
03583c20 | 2574 | static int |
2bfc0540 | 2575 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
2576 | { |
2577 | struct target_ops *t; | |
2578 | ||
2579 | t = find_default_run_target (NULL); | |
2580 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 2581 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
2582 | return 0; |
2583 | } | |
2584 | ||
2585 | int | |
2586 | target_supports_disable_randomization (void) | |
2587 | { | |
2588 | struct target_ops *t; | |
2589 | ||
2590 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
2591 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 2592 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
2593 | |
2594 | return 0; | |
2595 | } | |
9908b566 | 2596 | |
07e059b5 VP |
2597 | char * |
2598 | target_get_osdata (const char *type) | |
2599 | { | |
07e059b5 VP |
2600 | struct target_ops *t; |
2601 | ||
739ef7fb PA |
2602 | /* If we're already connected to something that can get us OS |
2603 | related data, use it. Otherwise, try using the native | |
2604 | target. */ | |
2605 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 2606 | t = current_target.beneath; |
739ef7fb PA |
2607 | else |
2608 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
2609 | |
2610 | if (!t) | |
2611 | return NULL; | |
2612 | ||
6d097e65 | 2613 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
2614 | } |
2615 | ||
8eaff7cd TT |
2616 | static struct address_space * |
2617 | default_thread_address_space (struct target_ops *self, ptid_t ptid) | |
6c95b8df PA |
2618 | { |
2619 | struct inferior *inf; | |
6c95b8df PA |
2620 | |
2621 | /* Fall-back to the "main" address space of the inferior. */ | |
2622 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
2623 | ||
2624 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 2625 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
2626 | _("Can't determine the current " |
2627 | "address space of thread %s\n"), | |
6c95b8df PA |
2628 | target_pid_to_str (ptid)); |
2629 | ||
2630 | return inf->aspace; | |
2631 | } | |
2632 | ||
8eaff7cd TT |
2633 | /* Determine the current address space of thread PTID. */ |
2634 | ||
2635 | struct address_space * | |
2636 | target_thread_address_space (ptid_t ptid) | |
2637 | { | |
2638 | struct address_space *aspace; | |
2639 | ||
2640 | aspace = current_target.to_thread_address_space (¤t_target, ptid); | |
2641 | gdb_assert (aspace != NULL); | |
2642 | ||
2643 | if (targetdebug) | |
2644 | fprintf_unfiltered (gdb_stdlog, | |
2645 | "target_thread_address_space (%s) = %d\n", | |
2646 | target_pid_to_str (ptid), | |
2647 | address_space_num (aspace)); | |
2648 | ||
2649 | return aspace; | |
2650 | } | |
2651 | ||
7313baad UW |
2652 | |
2653 | /* Target file operations. */ | |
2654 | ||
2655 | static struct target_ops * | |
2656 | default_fileio_target (void) | |
2657 | { | |
2658 | /* If we're already connected to something that can perform | |
2659 | file I/O, use it. Otherwise, try using the native target. */ | |
2660 | if (current_target.to_stratum >= process_stratum) | |
2661 | return current_target.beneath; | |
2662 | else | |
2663 | return find_default_run_target ("file I/O"); | |
2664 | } | |
2665 | ||
2666 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
2667 | target file descriptor, or -1 if an error occurs (and set | |
2668 | *TARGET_ERRNO). */ | |
2669 | int | |
2670 | target_fileio_open (const char *filename, int flags, int mode, | |
2671 | int *target_errno) | |
2672 | { | |
2673 | struct target_ops *t; | |
2674 | ||
2675 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2676 | { | |
2677 | if (t->to_fileio_open != NULL) | |
2678 | { | |
cd897586 | 2679 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
2680 | |
2681 | if (targetdebug) | |
2682 | fprintf_unfiltered (gdb_stdlog, | |
2683 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
2684 | filename, flags, mode, | |
2685 | fd, fd != -1 ? 0 : *target_errno); | |
2686 | return fd; | |
2687 | } | |
2688 | } | |
2689 | ||
2690 | *target_errno = FILEIO_ENOSYS; | |
2691 | return -1; | |
2692 | } | |
2693 | ||
2694 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
2695 | Return the number of bytes written, or -1 if an error occurs | |
2696 | (and set *TARGET_ERRNO). */ | |
2697 | int | |
2698 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
2699 | ULONGEST offset, int *target_errno) | |
2700 | { | |
2701 | struct target_ops *t; | |
2702 | ||
2703 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2704 | { | |
2705 | if (t->to_fileio_pwrite != NULL) | |
2706 | { | |
0d866f62 | 2707 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
2708 | target_errno); |
2709 | ||
2710 | if (targetdebug) | |
2711 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 2712 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 2713 | "= %d (%d)\n", |
a71b5a38 | 2714 | fd, len, pulongest (offset), |
7313baad UW |
2715 | ret, ret != -1 ? 0 : *target_errno); |
2716 | return ret; | |
2717 | } | |
2718 | } | |
2719 | ||
2720 | *target_errno = FILEIO_ENOSYS; | |
2721 | return -1; | |
2722 | } | |
2723 | ||
2724 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
2725 | Return the number of bytes read, or -1 if an error occurs | |
2726 | (and set *TARGET_ERRNO). */ | |
2727 | int | |
2728 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
2729 | ULONGEST offset, int *target_errno) | |
2730 | { | |
2731 | struct target_ops *t; | |
2732 | ||
2733 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2734 | { | |
2735 | if (t->to_fileio_pread != NULL) | |
2736 | { | |
a3be983c | 2737 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
2738 | target_errno); |
2739 | ||
2740 | if (targetdebug) | |
2741 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 2742 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 2743 | "= %d (%d)\n", |
a71b5a38 | 2744 | fd, len, pulongest (offset), |
7313baad UW |
2745 | ret, ret != -1 ? 0 : *target_errno); |
2746 | return ret; | |
2747 | } | |
2748 | } | |
2749 | ||
2750 | *target_errno = FILEIO_ENOSYS; | |
2751 | return -1; | |
2752 | } | |
2753 | ||
2754 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
2755 | (and set *TARGET_ERRNO). */ | |
2756 | int | |
2757 | target_fileio_close (int fd, int *target_errno) | |
2758 | { | |
2759 | struct target_ops *t; | |
2760 | ||
2761 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2762 | { | |
2763 | if (t->to_fileio_close != NULL) | |
2764 | { | |
df39ea25 | 2765 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
2766 | |
2767 | if (targetdebug) | |
2768 | fprintf_unfiltered (gdb_stdlog, | |
2769 | "target_fileio_close (%d) = %d (%d)\n", | |
2770 | fd, ret, ret != -1 ? 0 : *target_errno); | |
2771 | return ret; | |
2772 | } | |
2773 | } | |
2774 | ||
2775 | *target_errno = FILEIO_ENOSYS; | |
2776 | return -1; | |
2777 | } | |
2778 | ||
2779 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
2780 | occurs (and set *TARGET_ERRNO). */ | |
2781 | int | |
2782 | target_fileio_unlink (const char *filename, int *target_errno) | |
2783 | { | |
2784 | struct target_ops *t; | |
2785 | ||
2786 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2787 | { | |
2788 | if (t->to_fileio_unlink != NULL) | |
2789 | { | |
dbbca37d | 2790 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
2791 | |
2792 | if (targetdebug) | |
2793 | fprintf_unfiltered (gdb_stdlog, | |
2794 | "target_fileio_unlink (%s) = %d (%d)\n", | |
2795 | filename, ret, ret != -1 ? 0 : *target_errno); | |
2796 | return ret; | |
2797 | } | |
2798 | } | |
2799 | ||
2800 | *target_errno = FILEIO_ENOSYS; | |
2801 | return -1; | |
2802 | } | |
2803 | ||
b9e7b9c3 UW |
2804 | /* Read value of symbolic link FILENAME on the target. Return a |
2805 | null-terminated string allocated via xmalloc, or NULL if an error | |
2806 | occurs (and set *TARGET_ERRNO). */ | |
2807 | char * | |
2808 | target_fileio_readlink (const char *filename, int *target_errno) | |
2809 | { | |
2810 | struct target_ops *t; | |
2811 | ||
2812 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2813 | { | |
2814 | if (t->to_fileio_readlink != NULL) | |
2815 | { | |
fab5aa7c | 2816 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
2817 | |
2818 | if (targetdebug) | |
2819 | fprintf_unfiltered (gdb_stdlog, | |
2820 | "target_fileio_readlink (%s) = %s (%d)\n", | |
2821 | filename, ret? ret : "(nil)", | |
2822 | ret? 0 : *target_errno); | |
2823 | return ret; | |
2824 | } | |
2825 | } | |
2826 | ||
2827 | *target_errno = FILEIO_ENOSYS; | |
2828 | return NULL; | |
2829 | } | |
2830 | ||
7313baad UW |
2831 | static void |
2832 | target_fileio_close_cleanup (void *opaque) | |
2833 | { | |
2834 | int fd = *(int *) opaque; | |
2835 | int target_errno; | |
2836 | ||
2837 | target_fileio_close (fd, &target_errno); | |
2838 | } | |
2839 | ||
2840 | /* Read target file FILENAME. Store the result in *BUF_P and | |
2841 | return the size of the transferred data. PADDING additional bytes are | |
2842 | available in *BUF_P. This is a helper function for | |
2843 | target_fileio_read_alloc; see the declaration of that function for more | |
2844 | information. */ | |
2845 | ||
2846 | static LONGEST | |
2847 | target_fileio_read_alloc_1 (const char *filename, | |
2848 | gdb_byte **buf_p, int padding) | |
2849 | { | |
2850 | struct cleanup *close_cleanup; | |
2851 | size_t buf_alloc, buf_pos; | |
2852 | gdb_byte *buf; | |
2853 | LONGEST n; | |
2854 | int fd; | |
2855 | int target_errno; | |
2856 | ||
2857 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
2858 | if (fd == -1) | |
2859 | return -1; | |
2860 | ||
2861 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
2862 | ||
2863 | /* Start by reading up to 4K at a time. The target will throttle | |
2864 | this number down if necessary. */ | |
2865 | buf_alloc = 4096; | |
2866 | buf = xmalloc (buf_alloc); | |
2867 | buf_pos = 0; | |
2868 | while (1) | |
2869 | { | |
2870 | n = target_fileio_pread (fd, &buf[buf_pos], | |
2871 | buf_alloc - buf_pos - padding, buf_pos, | |
2872 | &target_errno); | |
2873 | if (n < 0) | |
2874 | { | |
2875 | /* An error occurred. */ | |
2876 | do_cleanups (close_cleanup); | |
2877 | xfree (buf); | |
2878 | return -1; | |
2879 | } | |
2880 | else if (n == 0) | |
2881 | { | |
2882 | /* Read all there was. */ | |
2883 | do_cleanups (close_cleanup); | |
2884 | if (buf_pos == 0) | |
2885 | xfree (buf); | |
2886 | else | |
2887 | *buf_p = buf; | |
2888 | return buf_pos; | |
2889 | } | |
2890 | ||
2891 | buf_pos += n; | |
2892 | ||
2893 | /* If the buffer is filling up, expand it. */ | |
2894 | if (buf_alloc < buf_pos * 2) | |
2895 | { | |
2896 | buf_alloc *= 2; | |
2897 | buf = xrealloc (buf, buf_alloc); | |
2898 | } | |
2899 | ||
2900 | QUIT; | |
2901 | } | |
2902 | } | |
2903 | ||
2904 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
2905 | the size of the transferred data. See the declaration in "target.h" | |
2906 | function for more information about the return value. */ | |
2907 | ||
2908 | LONGEST | |
2909 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
2910 | { | |
2911 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
2912 | } | |
2913 | ||
2914 | /* Read target file FILENAME. The result is NUL-terminated and | |
2915 | returned as a string, allocated using xmalloc. If an error occurs | |
2916 | or the transfer is unsupported, NULL is returned. Empty objects | |
2917 | are returned as allocated but empty strings. A warning is issued | |
2918 | if the result contains any embedded NUL bytes. */ | |
2919 | ||
2920 | char * | |
2921 | target_fileio_read_stralloc (const char *filename) | |
2922 | { | |
39086a0e PA |
2923 | gdb_byte *buffer; |
2924 | char *bufstr; | |
7313baad UW |
2925 | LONGEST i, transferred; |
2926 | ||
39086a0e PA |
2927 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
2928 | bufstr = (char *) buffer; | |
7313baad UW |
2929 | |
2930 | if (transferred < 0) | |
2931 | return NULL; | |
2932 | ||
2933 | if (transferred == 0) | |
2934 | return xstrdup (""); | |
2935 | ||
39086a0e | 2936 | bufstr[transferred] = 0; |
7313baad UW |
2937 | |
2938 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2939 | for (i = strlen (bufstr); i < transferred; i++) |
2940 | if (bufstr[i] != 0) | |
7313baad UW |
2941 | { |
2942 | warning (_("target file %s " | |
2943 | "contained unexpected null characters"), | |
2944 | filename); | |
2945 | break; | |
2946 | } | |
2947 | ||
39086a0e | 2948 | return bufstr; |
7313baad UW |
2949 | } |
2950 | ||
2951 | ||
e0d24f8d | 2952 | static int |
31568a15 TT |
2953 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
2954 | CORE_ADDR addr, int len) | |
e0d24f8d | 2955 | { |
f5656ead | 2956 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
2957 | } |
2958 | ||
5009afc5 AS |
2959 | static int |
2960 | default_watchpoint_addr_within_range (struct target_ops *target, | |
2961 | CORE_ADDR addr, | |
2962 | CORE_ADDR start, int length) | |
2963 | { | |
2964 | return addr >= start && addr < start + length; | |
2965 | } | |
2966 | ||
c2250ad1 UW |
2967 | static struct gdbarch * |
2968 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
2969 | { | |
f5656ead | 2970 | return target_gdbarch (); |
c2250ad1 UW |
2971 | } |
2972 | ||
c906108c | 2973 | static int |
555bbdeb TT |
2974 | return_zero (struct target_ops *ignore) |
2975 | { | |
2976 | return 0; | |
2977 | } | |
2978 | ||
2979 | static int | |
2980 | return_zero_has_execution (struct target_ops *ignore, ptid_t ignore2) | |
c906108c SS |
2981 | { |
2982 | return 0; | |
2983 | } | |
2984 | ||
ed9a39eb JM |
2985 | /* |
2986 | * Find the next target down the stack from the specified target. | |
2987 | */ | |
2988 | ||
2989 | struct target_ops * | |
fba45db2 | 2990 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 2991 | { |
258b763a | 2992 | return t->beneath; |
ed9a39eb JM |
2993 | } |
2994 | ||
8b06beed TT |
2995 | /* See target.h. */ |
2996 | ||
2997 | struct target_ops * | |
2998 | find_target_at (enum strata stratum) | |
2999 | { | |
3000 | struct target_ops *t; | |
3001 | ||
3002 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3003 | if (t->to_stratum == stratum) | |
3004 | return t; | |
3005 | ||
3006 | return NULL; | |
3007 | } | |
3008 | ||
c906108c SS |
3009 | \f |
3010 | /* The inferior process has died. Long live the inferior! */ | |
3011 | ||
3012 | void | |
fba45db2 | 3013 | generic_mourn_inferior (void) |
c906108c | 3014 | { |
7f9f62ba | 3015 | ptid_t ptid; |
c906108c | 3016 | |
7f9f62ba | 3017 | ptid = inferior_ptid; |
39f77062 | 3018 | inferior_ptid = null_ptid; |
7f9f62ba | 3019 | |
f59f708a PA |
3020 | /* Mark breakpoints uninserted in case something tries to delete a |
3021 | breakpoint while we delete the inferior's threads (which would | |
3022 | fail, since the inferior is long gone). */ | |
3023 | mark_breakpoints_out (); | |
3024 | ||
7f9f62ba PA |
3025 | if (!ptid_equal (ptid, null_ptid)) |
3026 | { | |
3027 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3028 | exit_inferior (pid); |
7f9f62ba PA |
3029 | } |
3030 | ||
f59f708a PA |
3031 | /* Note this wipes step-resume breakpoints, so needs to be done |
3032 | after exit_inferior, which ends up referencing the step-resume | |
3033 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3034 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3035 | |
c906108c SS |
3036 | registers_changed (); |
3037 | ||
c906108c SS |
3038 | reopen_exec_file (); |
3039 | reinit_frame_cache (); | |
3040 | ||
9a4105ab AC |
3041 | if (deprecated_detach_hook) |
3042 | deprecated_detach_hook (); | |
c906108c SS |
3043 | } |
3044 | \f | |
fd0a2a6f MK |
3045 | /* Convert a normal process ID to a string. Returns the string in a |
3046 | static buffer. */ | |
c906108c SS |
3047 | |
3048 | char * | |
39f77062 | 3049 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3050 | { |
fd0a2a6f | 3051 | static char buf[32]; |
c906108c | 3052 | |
5fff8fc0 | 3053 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3054 | return buf; |
3055 | } | |
3056 | ||
2c0b251b | 3057 | static char * |
770234d3 | 3058 | default_pid_to_str (struct target_ops *ops, ptid_t ptid) |
117de6a9 PA |
3059 | { |
3060 | return normal_pid_to_str (ptid); | |
3061 | } | |
3062 | ||
9b4eba8e HZ |
3063 | /* Error-catcher for target_find_memory_regions. */ |
3064 | static int | |
2e73927c TT |
3065 | dummy_find_memory_regions (struct target_ops *self, |
3066 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3067 | { |
9b4eba8e | 3068 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3069 | return 0; |
3070 | } | |
3071 | ||
9b4eba8e HZ |
3072 | /* Error-catcher for target_make_corefile_notes. */ |
3073 | static char * | |
fc6691b2 TT |
3074 | dummy_make_corefile_notes (struct target_ops *self, |
3075 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3076 | { |
9b4eba8e | 3077 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3078 | return NULL; |
3079 | } | |
3080 | ||
c906108c SS |
3081 | /* Set up the handful of non-empty slots needed by the dummy target |
3082 | vector. */ | |
3083 | ||
3084 | static void | |
fba45db2 | 3085 | init_dummy_target (void) |
c906108c SS |
3086 | { |
3087 | dummy_target.to_shortname = "None"; | |
3088 | dummy_target.to_longname = "None"; | |
3089 | dummy_target.to_doc = ""; | |
03583c20 UW |
3090 | dummy_target.to_supports_disable_randomization |
3091 | = find_default_supports_disable_randomization; | |
c906108c | 3092 | dummy_target.to_stratum = dummy_stratum; |
555bbdeb TT |
3093 | dummy_target.to_has_all_memory = return_zero; |
3094 | dummy_target.to_has_memory = return_zero; | |
3095 | dummy_target.to_has_stack = return_zero; | |
3096 | dummy_target.to_has_registers = return_zero; | |
3097 | dummy_target.to_has_execution = return_zero_has_execution; | |
c906108c | 3098 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3099 | |
3100 | install_dummy_methods (&dummy_target); | |
c906108c | 3101 | } |
c906108c | 3102 | \f |
c906108c | 3103 | static void |
fba45db2 | 3104 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3105 | { |
3106 | debug_target.to_open (args, from_tty); | |
3107 | ||
96baa820 | 3108 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3109 | } |
3110 | ||
f1c07ab0 | 3111 | void |
460014f5 | 3112 | target_close (struct target_ops *targ) |
f1c07ab0 | 3113 | { |
7fdc1521 TT |
3114 | gdb_assert (!target_is_pushed (targ)); |
3115 | ||
f1c07ab0 | 3116 | if (targ->to_xclose != NULL) |
460014f5 | 3117 | targ->to_xclose (targ); |
f1c07ab0 | 3118 | else if (targ->to_close != NULL) |
de90e03d | 3119 | targ->to_close (targ); |
947b8855 PA |
3120 | |
3121 | if (targetdebug) | |
460014f5 | 3122 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3123 | } |
3124 | ||
28439f5e PA |
3125 | int |
3126 | target_thread_alive (ptid_t ptid) | |
c906108c | 3127 | { |
cbffc065 | 3128 | int retval; |
28439f5e | 3129 | |
cbffc065 TT |
3130 | retval = current_target.to_thread_alive (¤t_target, ptid); |
3131 | if (targetdebug) | |
3132 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3133 | ptid_get_pid (ptid), retval); | |
28439f5e | 3134 | |
cbffc065 | 3135 | return retval; |
28439f5e PA |
3136 | } |
3137 | ||
3138 | void | |
3139 | target_find_new_threads (void) | |
3140 | { | |
09b0dc2b TT |
3141 | current_target.to_find_new_threads (¤t_target); |
3142 | if (targetdebug) | |
3143 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
c906108c SS |
3144 | } |
3145 | ||
d914c394 SS |
3146 | void |
3147 | target_stop (ptid_t ptid) | |
3148 | { | |
3149 | if (!may_stop) | |
3150 | { | |
3151 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3152 | return; | |
3153 | } | |
3154 | ||
1eab8a48 | 3155 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3156 | } |
3157 | ||
c906108c | 3158 | static void |
f045800c | 3159 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3160 | { |
f045800c | 3161 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3162 | |
28439f5e | 3163 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3164 | } |
3165 | ||
09826ec5 PA |
3166 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3167 | result. The LIST incoming argument is released. */ | |
3168 | ||
3169 | static char * | |
3170 | str_comma_list_concat_elem (char *list, const char *elem) | |
3171 | { | |
3172 | if (list == NULL) | |
3173 | return xstrdup (elem); | |
3174 | else | |
3175 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3176 | } | |
3177 | ||
3178 | /* Helper for target_options_to_string. If OPT is present in | |
3179 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3180 | Returns the new resulting string. OPT is removed from | |
3181 | TARGET_OPTIONS. */ | |
3182 | ||
3183 | static char * | |
3184 | do_option (int *target_options, char *ret, | |
3185 | int opt, char *opt_str) | |
3186 | { | |
3187 | if ((*target_options & opt) != 0) | |
3188 | { | |
3189 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3190 | *target_options &= ~opt; | |
3191 | } | |
3192 | ||
3193 | return ret; | |
3194 | } | |
3195 | ||
3196 | char * | |
3197 | target_options_to_string (int target_options) | |
3198 | { | |
3199 | char *ret = NULL; | |
3200 | ||
3201 | #define DO_TARG_OPTION(OPT) \ | |
3202 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3203 | ||
3204 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3205 | ||
3206 | if (target_options != 0) | |
3207 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3208 | ||
3209 | if (ret == NULL) | |
3210 | ret = xstrdup (""); | |
3211 | return ret; | |
3212 | } | |
3213 | ||
bf0c5130 | 3214 | static void |
56be3814 UW |
3215 | debug_print_register (const char * func, |
3216 | struct regcache *regcache, int regno) | |
bf0c5130 | 3217 | { |
f8d29908 | 3218 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3219 | |
bf0c5130 | 3220 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3221 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3222 | && gdbarch_register_name (gdbarch, regno) != NULL |
3223 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3224 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3225 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3226 | else |
3227 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3228 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3229 | { |
e17a4113 | 3230 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3231 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3232 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3233 | |
0ff58721 | 3234 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3235 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3236 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3237 | { |
3238 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3239 | } | |
81c4a259 | 3240 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3241 | { |
e17a4113 | 3242 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3243 | |
0b1553bc UW |
3244 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3245 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3246 | } |
3247 | } | |
3248 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3249 | } | |
3250 | ||
28439f5e PA |
3251 | void |
3252 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3253 | { |
ad5989bd TT |
3254 | current_target.to_fetch_registers (¤t_target, regcache, regno); |
3255 | if (targetdebug) | |
3256 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
3257 | } |
3258 | ||
28439f5e PA |
3259 | void |
3260 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3261 | { |
28439f5e | 3262 | struct target_ops *t; |
5d502164 | 3263 | |
d914c394 SS |
3264 | if (!may_write_registers) |
3265 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3266 | ||
6b84065d TT |
3267 | current_target.to_store_registers (¤t_target, regcache, regno); |
3268 | if (targetdebug) | |
28439f5e | 3269 | { |
6b84065d | 3270 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3271 | } |
c906108c SS |
3272 | } |
3273 | ||
dc146f7c VP |
3274 | int |
3275 | target_core_of_thread (ptid_t ptid) | |
3276 | { | |
9e538d0d | 3277 | int retval = current_target.to_core_of_thread (¤t_target, ptid); |
dc146f7c | 3278 | |
9e538d0d TT |
3279 | if (targetdebug) |
3280 | fprintf_unfiltered (gdb_stdlog, | |
3281 | "target_core_of_thread (%d) = %d\n", | |
3282 | ptid_get_pid (ptid), retval); | |
3283 | return retval; | |
dc146f7c VP |
3284 | } |
3285 | ||
936d2992 PA |
3286 | int |
3287 | simple_verify_memory (struct target_ops *ops, | |
3288 | const gdb_byte *data, CORE_ADDR lma, ULONGEST size) | |
3289 | { | |
3290 | LONGEST total_xfered = 0; | |
3291 | ||
3292 | while (total_xfered < size) | |
3293 | { | |
3294 | ULONGEST xfered_len; | |
3295 | enum target_xfer_status status; | |
3296 | gdb_byte buf[1024]; | |
3297 | ULONGEST howmuch = min (sizeof (buf), size - total_xfered); | |
3298 | ||
3299 | status = target_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
3300 | buf, NULL, lma + total_xfered, howmuch, | |
3301 | &xfered_len); | |
3302 | if (status == TARGET_XFER_OK | |
3303 | && memcmp (data + total_xfered, buf, xfered_len) == 0) | |
3304 | { | |
3305 | total_xfered += xfered_len; | |
3306 | QUIT; | |
3307 | } | |
3308 | else | |
3309 | return 0; | |
3310 | } | |
3311 | return 1; | |
3312 | } | |
3313 | ||
3314 | /* Default implementation of memory verification. */ | |
3315 | ||
3316 | static int | |
3317 | default_verify_memory (struct target_ops *self, | |
3318 | const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3319 | { | |
3320 | /* Start over from the top of the target stack. */ | |
3321 | return simple_verify_memory (current_target.beneath, | |
3322 | data, memaddr, size); | |
3323 | } | |
3324 | ||
4a5e7a5b PA |
3325 | int |
3326 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3327 | { | |
eb276a6b TT |
3328 | int retval = current_target.to_verify_memory (¤t_target, |
3329 | data, memaddr, size); | |
5d502164 | 3330 | |
eb276a6b TT |
3331 | if (targetdebug) |
3332 | fprintf_unfiltered (gdb_stdlog, | |
3333 | "target_verify_memory (%s, %s) = %d\n", | |
3334 | paddress (target_gdbarch (), memaddr), | |
3335 | pulongest (size), | |
3336 | retval); | |
3337 | return retval; | |
4a5e7a5b PA |
3338 | } |
3339 | ||
9c06b0b4 TJB |
3340 | /* The documentation for this function is in its prototype declaration in |
3341 | target.h. */ | |
3342 | ||
3343 | int | |
3344 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3345 | { | |
cd4ae029 | 3346 | int ret; |
9c06b0b4 | 3347 | |
cd4ae029 TT |
3348 | ret = current_target.to_insert_mask_watchpoint (¤t_target, |
3349 | addr, mask, rw); | |
9c06b0b4 | 3350 | |
cd4ae029 TT |
3351 | if (targetdebug) |
3352 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3353 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", |
cd4ae029 TT |
3354 | core_addr_to_string (addr), |
3355 | core_addr_to_string (mask), rw, ret); | |
3356 | ||
3357 | return ret; | |
9c06b0b4 TJB |
3358 | } |
3359 | ||
3360 | /* The documentation for this function is in its prototype declaration in | |
3361 | target.h. */ | |
3362 | ||
3363 | int | |
3364 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3365 | { | |
8b1c364c | 3366 | int ret; |
9c06b0b4 | 3367 | |
8b1c364c TT |
3368 | ret = current_target.to_remove_mask_watchpoint (¤t_target, |
3369 | addr, mask, rw); | |
9c06b0b4 | 3370 | |
8b1c364c TT |
3371 | if (targetdebug) |
3372 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3373 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", |
8b1c364c TT |
3374 | core_addr_to_string (addr), |
3375 | core_addr_to_string (mask), rw, ret); | |
9c06b0b4 | 3376 | |
8b1c364c | 3377 | return ret; |
9c06b0b4 TJB |
3378 | } |
3379 | ||
3380 | /* The documentation for this function is in its prototype declaration | |
3381 | in target.h. */ | |
3382 | ||
3383 | int | |
3384 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3385 | { | |
6c7e5e5c TT |
3386 | return current_target.to_masked_watch_num_registers (¤t_target, |
3387 | addr, mask); | |
9c06b0b4 TJB |
3388 | } |
3389 | ||
f1310107 TJB |
3390 | /* The documentation for this function is in its prototype declaration |
3391 | in target.h. */ | |
3392 | ||
3393 | int | |
3394 | target_ranged_break_num_registers (void) | |
3395 | { | |
a134316b | 3396 | return current_target.to_ranged_break_num_registers (¤t_target); |
f1310107 TJB |
3397 | } |
3398 | ||
02d27625 MM |
3399 | /* See target.h. */ |
3400 | ||
02d27625 MM |
3401 | struct btrace_target_info * |
3402 | target_enable_btrace (ptid_t ptid) | |
3403 | { | |
6dc7fcf4 | 3404 | return current_target.to_enable_btrace (¤t_target, ptid); |
02d27625 MM |
3405 | } |
3406 | ||
3407 | /* See target.h. */ | |
3408 | ||
3409 | void | |
3410 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3411 | { | |
8dc292d3 | 3412 | current_target.to_disable_btrace (¤t_target, btinfo); |
02d27625 MM |
3413 | } |
3414 | ||
3415 | /* See target.h. */ | |
3416 | ||
3417 | void | |
3418 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
3419 | { | |
9ace480d | 3420 | current_target.to_teardown_btrace (¤t_target, btinfo); |
02d27625 MM |
3421 | } |
3422 | ||
3423 | /* See target.h. */ | |
3424 | ||
969c39fb MM |
3425 | enum btrace_error |
3426 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
3427 | struct btrace_target_info *btinfo, | |
02d27625 MM |
3428 | enum btrace_read_type type) |
3429 | { | |
eb5b20d4 | 3430 | return current_target.to_read_btrace (¤t_target, btrace, btinfo, type); |
02d27625 MM |
3431 | } |
3432 | ||
d02ed0bb MM |
3433 | /* See target.h. */ |
3434 | ||
7c1687a9 MM |
3435 | void |
3436 | target_stop_recording (void) | |
3437 | { | |
ee97f592 | 3438 | current_target.to_stop_recording (¤t_target); |
7c1687a9 MM |
3439 | } |
3440 | ||
3441 | /* See target.h. */ | |
3442 | ||
d02ed0bb MM |
3443 | void |
3444 | target_info_record (void) | |
3445 | { | |
3446 | struct target_ops *t; | |
3447 | ||
3448 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3449 | if (t->to_info_record != NULL) | |
3450 | { | |
630d6a4a | 3451 | t->to_info_record (t); |
d02ed0bb MM |
3452 | return; |
3453 | } | |
3454 | ||
3455 | tcomplain (); | |
3456 | } | |
3457 | ||
3458 | /* See target.h. */ | |
3459 | ||
3460 | void | |
85e1311a | 3461 | target_save_record (const char *filename) |
d02ed0bb | 3462 | { |
f09e2107 | 3463 | current_target.to_save_record (¤t_target, filename); |
d02ed0bb MM |
3464 | } |
3465 | ||
3466 | /* See target.h. */ | |
3467 | ||
3468 | int | |
3469 | target_supports_delete_record (void) | |
3470 | { | |
3471 | struct target_ops *t; | |
3472 | ||
3473 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3474 | if (t->to_delete_record != NULL) | |
3475 | return 1; | |
3476 | ||
3477 | return 0; | |
3478 | } | |
3479 | ||
3480 | /* See target.h. */ | |
3481 | ||
3482 | void | |
3483 | target_delete_record (void) | |
3484 | { | |
07366925 | 3485 | current_target.to_delete_record (¤t_target); |
d02ed0bb MM |
3486 | } |
3487 | ||
3488 | /* See target.h. */ | |
3489 | ||
3490 | int | |
3491 | target_record_is_replaying (void) | |
3492 | { | |
dd2e9d25 | 3493 | return current_target.to_record_is_replaying (¤t_target); |
d02ed0bb MM |
3494 | } |
3495 | ||
3496 | /* See target.h. */ | |
3497 | ||
3498 | void | |
3499 | target_goto_record_begin (void) | |
3500 | { | |
671e76cc | 3501 | current_target.to_goto_record_begin (¤t_target); |
d02ed0bb MM |
3502 | } |
3503 | ||
3504 | /* See target.h. */ | |
3505 | ||
3506 | void | |
3507 | target_goto_record_end (void) | |
3508 | { | |
e9179bb3 | 3509 | current_target.to_goto_record_end (¤t_target); |
d02ed0bb MM |
3510 | } |
3511 | ||
3512 | /* See target.h. */ | |
3513 | ||
3514 | void | |
3515 | target_goto_record (ULONGEST insn) | |
3516 | { | |
05969c84 | 3517 | current_target.to_goto_record (¤t_target, insn); |
d02ed0bb MM |
3518 | } |
3519 | ||
67c86d06 MM |
3520 | /* See target.h. */ |
3521 | ||
3522 | void | |
3523 | target_insn_history (int size, int flags) | |
3524 | { | |
3679abfa | 3525 | current_target.to_insn_history (¤t_target, size, flags); |
67c86d06 MM |
3526 | } |
3527 | ||
3528 | /* See target.h. */ | |
3529 | ||
3530 | void | |
3531 | target_insn_history_from (ULONGEST from, int size, int flags) | |
3532 | { | |
8444ab58 | 3533 | current_target.to_insn_history_from (¤t_target, from, size, flags); |
67c86d06 MM |
3534 | } |
3535 | ||
3536 | /* See target.h. */ | |
3537 | ||
3538 | void | |
3539 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3540 | { | |
c29302cc | 3541 | current_target.to_insn_history_range (¤t_target, begin, end, flags); |
67c86d06 MM |
3542 | } |
3543 | ||
15984c13 MM |
3544 | /* See target.h. */ |
3545 | ||
3546 | void | |
3547 | target_call_history (int size, int flags) | |
3548 | { | |
170049d4 | 3549 | current_target.to_call_history (¤t_target, size, flags); |
15984c13 MM |
3550 | } |
3551 | ||
3552 | /* See target.h. */ | |
3553 | ||
3554 | void | |
3555 | target_call_history_from (ULONGEST begin, int size, int flags) | |
3556 | { | |
16fc27d6 | 3557 | current_target.to_call_history_from (¤t_target, begin, size, flags); |
15984c13 MM |
3558 | } |
3559 | ||
3560 | /* See target.h. */ | |
3561 | ||
3562 | void | |
3563 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3564 | { | |
115d9817 | 3565 | current_target.to_call_history_range (¤t_target, begin, end, flags); |
15984c13 MM |
3566 | } |
3567 | ||
c906108c | 3568 | static void |
f32dbf8c | 3569 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 3570 | { |
f32dbf8c | 3571 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 3572 | |
96baa820 | 3573 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
3574 | } |
3575 | ||
ea001bdc MM |
3576 | /* See target.h. */ |
3577 | ||
3578 | const struct frame_unwind * | |
3579 | target_get_unwinder (void) | |
3580 | { | |
ac01945b | 3581 | return current_target.to_get_unwinder (¤t_target); |
ea001bdc MM |
3582 | } |
3583 | ||
3584 | /* See target.h. */ | |
3585 | ||
3586 | const struct frame_unwind * | |
3587 | target_get_tailcall_unwinder (void) | |
3588 | { | |
ac01945b | 3589 | return current_target.to_get_tailcall_unwinder (¤t_target); |
ea001bdc MM |
3590 | } |
3591 | ||
c0eca49f | 3592 | /* Default implementation of to_decr_pc_after_break. */ |
118e6252 | 3593 | |
c0eca49f TT |
3594 | static CORE_ADDR |
3595 | default_target_decr_pc_after_break (struct target_ops *ops, | |
118e6252 MM |
3596 | struct gdbarch *gdbarch) |
3597 | { | |
118e6252 MM |
3598 | return gdbarch_decr_pc_after_break (gdbarch); |
3599 | } | |
3600 | ||
3601 | /* See target.h. */ | |
3602 | ||
3603 | CORE_ADDR | |
3604 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
3605 | { | |
c0eca49f | 3606 | return current_target.to_decr_pc_after_break (¤t_target, gdbarch); |
118e6252 MM |
3607 | } |
3608 | ||
c906108c | 3609 | static void |
fba45db2 | 3610 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
3611 | { |
3612 | debug_target.to_files_info (target); | |
3613 | ||
96baa820 | 3614 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
3615 | } |
3616 | ||
3617 | static int | |
3db08215 | 3618 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 3619 | struct bp_target_info *bp_tgt) |
c906108c SS |
3620 | { |
3621 | int retval; | |
3622 | ||
6b84065d | 3623 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 3624 | |
96baa820 | 3625 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
3626 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
3627 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 3628 | (unsigned long) retval); |
c906108c SS |
3629 | return retval; |
3630 | } | |
3631 | ||
3632 | static int | |
3db08215 | 3633 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 3634 | struct bp_target_info *bp_tgt) |
c906108c SS |
3635 | { |
3636 | int retval; | |
3637 | ||
6b84065d | 3638 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 3639 | |
96baa820 | 3640 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
3641 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
3642 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 3643 | (unsigned long) retval); |
c906108c SS |
3644 | return retval; |
3645 | } | |
3646 | ||
ccaa32c7 | 3647 | static int |
5461485a TT |
3648 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
3649 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
3650 | { |
3651 | int retval; | |
3652 | ||
5461485a TT |
3653 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
3654 | type, cnt, from_tty); | |
ccaa32c7 GS |
3655 | |
3656 | fprintf_unfiltered (gdb_stdlog, | |
3657 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
3658 | (unsigned long) type, | |
3659 | (unsigned long) cnt, | |
3660 | (unsigned long) from_tty, | |
3661 | (unsigned long) retval); | |
3662 | return retval; | |
3663 | } | |
3664 | ||
e0d24f8d | 3665 | static int |
31568a15 TT |
3666 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
3667 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
3668 | { |
3669 | CORE_ADDR retval; | |
3670 | ||
31568a15 TT |
3671 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
3672 | addr, len); | |
e0d24f8d WZ |
3673 | |
3674 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3675 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
3676 | core_addr_to_string (addr), (unsigned long) len, | |
3677 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
3678 | return retval; |
3679 | } | |
3680 | ||
0cf6dd15 | 3681 | static int |
c3a5ff89 TT |
3682 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
3683 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
3684 | struct expression *cond) |
3685 | { | |
3686 | int retval; | |
3687 | ||
c3a5ff89 TT |
3688 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
3689 | addr, len, | |
3e43a32a | 3690 | rw, cond); |
0cf6dd15 TJB |
3691 | |
3692 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
3693 | "target_can_accel_watchpoint_condition " |
3694 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
3695 | core_addr_to_string (addr), len, rw, |
3696 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
3697 | return retval; |
3698 | } | |
3699 | ||
ccaa32c7 | 3700 | static int |
6a109b6b | 3701 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
3702 | { |
3703 | int retval; | |
3704 | ||
6a109b6b | 3705 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
3706 | |
3707 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 3708 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
3709 | (unsigned long) retval); |
3710 | return retval; | |
3711 | } | |
3712 | ||
4aa7a7f5 JJ |
3713 | static int |
3714 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 3715 | { |
4aa7a7f5 | 3716 | int retval; |
ccaa32c7 | 3717 | |
4aa7a7f5 | 3718 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
3719 | |
3720 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3721 | "target_stopped_data_address ([%s]) = %ld\n", |
3722 | core_addr_to_string (*addr), | |
4aa7a7f5 | 3723 | (unsigned long)retval); |
ccaa32c7 GS |
3724 | return retval; |
3725 | } | |
3726 | ||
5009afc5 AS |
3727 | static int |
3728 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
3729 | CORE_ADDR addr, | |
3730 | CORE_ADDR start, int length) | |
3731 | { | |
3732 | int retval; | |
3733 | ||
3734 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
3735 | start, length); | |
3736 | ||
3737 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
3738 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
3739 | core_addr_to_string (addr), core_addr_to_string (start), | |
3740 | length, retval); | |
5009afc5 AS |
3741 | return retval; |
3742 | } | |
3743 | ||
ccaa32c7 | 3744 | static int |
23a26771 TT |
3745 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
3746 | struct gdbarch *gdbarch, | |
a6d9a66e | 3747 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
3748 | { |
3749 | int retval; | |
3750 | ||
23a26771 TT |
3751 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
3752 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
3753 | |
3754 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3755 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
3756 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
3757 | (unsigned long) retval); |
3758 | return retval; | |
3759 | } | |
3760 | ||
3761 | static int | |
a64dc96c TT |
3762 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
3763 | struct gdbarch *gdbarch, | |
a6d9a66e | 3764 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
3765 | { |
3766 | int retval; | |
3767 | ||
a64dc96c TT |
3768 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
3769 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
3770 | |
3771 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3772 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
3773 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
3774 | (unsigned long) retval); |
3775 | return retval; | |
3776 | } | |
3777 | ||
3778 | static int | |
7bb99c53 TT |
3779 | debug_to_insert_watchpoint (struct target_ops *self, |
3780 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 3781 | struct expression *cond) |
ccaa32c7 GS |
3782 | { |
3783 | int retval; | |
3784 | ||
7bb99c53 TT |
3785 | retval = debug_target.to_insert_watchpoint (&debug_target, |
3786 | addr, len, type, cond); | |
ccaa32c7 GS |
3787 | |
3788 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3789 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
3790 | core_addr_to_string (addr), len, type, | |
3791 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
3792 | return retval; |
3793 | } | |
3794 | ||
3795 | static int | |
11b5219a TT |
3796 | debug_to_remove_watchpoint (struct target_ops *self, |
3797 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 3798 | struct expression *cond) |
ccaa32c7 GS |
3799 | { |
3800 | int retval; | |
3801 | ||
11b5219a TT |
3802 | retval = debug_target.to_remove_watchpoint (&debug_target, |
3803 | addr, len, type, cond); | |
ccaa32c7 GS |
3804 | |
3805 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3806 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
3807 | core_addr_to_string (addr), len, type, | |
3808 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
3809 | return retval; |
3810 | } | |
3811 | ||
c906108c | 3812 | static void |
c42bf286 | 3813 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 3814 | { |
c42bf286 | 3815 | debug_target.to_terminal_init (&debug_target); |
c906108c | 3816 | |
96baa820 | 3817 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
3818 | } |
3819 | ||
3820 | static void | |
d2f640d4 | 3821 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 3822 | { |
d2f640d4 | 3823 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 3824 | |
96baa820 | 3825 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
3826 | } |
3827 | ||
3828 | static void | |
2e1e1a19 | 3829 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 3830 | { |
2e1e1a19 | 3831 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 3832 | |
96baa820 | 3833 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
3834 | } |
3835 | ||
3836 | static void | |
e3594fd1 | 3837 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 3838 | { |
e3594fd1 | 3839 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 3840 | |
96baa820 | 3841 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
3842 | } |
3843 | ||
a790ad35 | 3844 | static void |
ae3bd431 | 3845 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 3846 | { |
ae3bd431 | 3847 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
3848 | |
3849 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
3850 | } | |
3851 | ||
c906108c | 3852 | static void |
0a4f40a2 TT |
3853 | debug_to_terminal_info (struct target_ops *self, |
3854 | const char *arg, int from_tty) | |
c906108c | 3855 | { |
0a4f40a2 | 3856 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 3857 | |
96baa820 | 3858 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
3859 | from_tty); |
3860 | } | |
3861 | ||
c906108c | 3862 | static void |
71a9f134 | 3863 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 3864 | { |
71a9f134 | 3865 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 3866 | |
96baa820 | 3867 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
3868 | } |
3869 | ||
c906108c | 3870 | static void |
2e97a79e | 3871 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 3872 | { |
2e97a79e | 3873 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 3874 | |
96baa820 | 3875 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 3876 | ptid_get_pid (ptid)); |
c906108c SS |
3877 | } |
3878 | ||
77b06cd7 | 3879 | static int |
a863b201 | 3880 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3881 | { |
77b06cd7 TJB |
3882 | int retval; |
3883 | ||
a863b201 | 3884 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
3885 | |
3886 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
3887 | pid, retval); | |
c906108c | 3888 | |
77b06cd7 | 3889 | return retval; |
c906108c SS |
3890 | } |
3891 | ||
3892 | static int | |
973fc227 | 3893 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3894 | { |
c5aa993b | 3895 | int retval; |
c906108c | 3896 | |
973fc227 | 3897 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 3898 | |
96baa820 | 3899 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 3900 | pid, retval); |
c906108c SS |
3901 | |
3902 | return retval; | |
3903 | } | |
3904 | ||
77b06cd7 | 3905 | static int |
3ecc7da0 | 3906 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3907 | { |
77b06cd7 TJB |
3908 | int retval; |
3909 | ||
3ecc7da0 | 3910 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 3911 | |
77b06cd7 TJB |
3912 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
3913 | pid, retval); | |
3914 | ||
3915 | return retval; | |
c906108c SS |
3916 | } |
3917 | ||
3918 | static int | |
e98cf0cd | 3919 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3920 | { |
c5aa993b | 3921 | int retval; |
c906108c | 3922 | |
e98cf0cd | 3923 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 3924 | |
96baa820 | 3925 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 3926 | pid, retval); |
c906108c SS |
3927 | |
3928 | return retval; | |
3929 | } | |
3930 | ||
77b06cd7 | 3931 | static int |
ba025e51 | 3932 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 3933 | { |
77b06cd7 TJB |
3934 | int retval; |
3935 | ||
ba025e51 | 3936 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 3937 | |
77b06cd7 TJB |
3938 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
3939 | pid, retval); | |
3940 | ||
3941 | return retval; | |
c906108c SS |
3942 | } |
3943 | ||
3944 | static int | |
758e29d2 | 3945 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 3946 | { |
c5aa993b | 3947 | int retval; |
c906108c | 3948 | |
758e29d2 | 3949 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 3950 | |
96baa820 | 3951 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 3952 | pid, retval); |
c906108c SS |
3953 | |
3954 | return retval; | |
3955 | } | |
3956 | ||
c906108c | 3957 | static int |
d796e1d6 TT |
3958 | debug_to_has_exited (struct target_ops *self, |
3959 | int pid, int wait_status, int *exit_status) | |
c906108c | 3960 | { |
c5aa993b | 3961 | int has_exited; |
c906108c | 3962 | |
d796e1d6 TT |
3963 | has_exited = debug_target.to_has_exited (&debug_target, |
3964 | pid, wait_status, exit_status); | |
c906108c | 3965 | |
96baa820 | 3966 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 3967 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
3968 | |
3969 | return has_exited; | |
3970 | } | |
3971 | ||
c906108c | 3972 | static int |
da82bd6b | 3973 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
3974 | { |
3975 | int retval; | |
3976 | ||
da82bd6b | 3977 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 3978 | |
96baa820 | 3979 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
3980 | |
3981 | return retval; | |
3982 | } | |
3983 | ||
c2250ad1 UW |
3984 | static struct gdbarch * |
3985 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3986 | { | |
3987 | struct gdbarch *retval; | |
3988 | ||
3989 | retval = debug_target.to_thread_architecture (ops, ptid); | |
3990 | ||
3e43a32a MS |
3991 | fprintf_unfiltered (gdb_stdlog, |
3992 | "target_thread_architecture (%s) = %s [%s]\n", | |
3993 | target_pid_to_str (ptid), | |
3994 | host_address_to_string (retval), | |
c2250ad1 UW |
3995 | gdbarch_bfd_arch_info (retval)->printable_name); |
3996 | return retval; | |
3997 | } | |
3998 | ||
c906108c | 3999 | static void |
1eab8a48 | 4000 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4001 | { |
1eab8a48 | 4002 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4003 | |
94cc34af PA |
4004 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4005 | target_pid_to_str (ptid)); | |
c906108c SS |
4006 | } |
4007 | ||
96baa820 | 4008 | static void |
1aac633b | 4009 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4010 | struct ui_file *outbuf) |
96baa820 | 4011 | { |
1aac633b | 4012 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4013 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4014 | } | |
4015 | ||
c906108c | 4016 | static char * |
8dd27370 | 4017 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4018 | { |
c5aa993b | 4019 | char *exec_file; |
c906108c | 4020 | |
8dd27370 | 4021 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4022 | |
96baa820 | 4023 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4024 | pid, exec_file); |
c906108c SS |
4025 | |
4026 | return exec_file; | |
4027 | } | |
4028 | ||
c906108c | 4029 | static void |
fba45db2 | 4030 | setup_target_debug (void) |
c906108c SS |
4031 | { |
4032 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4033 | ||
4034 | current_target.to_open = debug_to_open; | |
c906108c | 4035 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4036 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c906108c SS |
4037 | current_target.to_files_info = debug_to_files_info; |
4038 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4039 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4040 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4041 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4042 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4043 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4044 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4045 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4046 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4047 | current_target.to_watchpoint_addr_within_range |
4048 | = debug_to_watchpoint_addr_within_range; | |
4049 | current_target.to_region_ok_for_hw_watchpoint | |
4050 | = debug_to_region_ok_for_hw_watchpoint; | |
4051 | current_target.to_can_accel_watchpoint_condition | |
4052 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4053 | current_target.to_terminal_init = debug_to_terminal_init; |
4054 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4055 | current_target.to_terminal_ours_for_output |
4056 | = debug_to_terminal_ours_for_output; | |
c906108c | 4057 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4058 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4059 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4060 | current_target.to_load = debug_to_load; |
c906108c | 4061 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4062 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4063 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4064 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4065 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4066 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4067 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4068 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4069 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4070 | current_target.to_stop = debug_to_stop; |
96baa820 | 4071 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4072 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4073 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4074 | } |
c906108c | 4075 | \f |
c5aa993b JM |
4076 | |
4077 | static char targ_desc[] = | |
3e43a32a MS |
4078 | "Names of targets and files being debugged.\nShows the entire \ |
4079 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4080 | core-file, and process, if any), as well as the symbol file name."; |
4081 | ||
a53f3625 TT |
4082 | static void |
4083 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4084 | { | |
4085 | error (_("\"monitor\" command not supported by this target.")); | |
4086 | } | |
4087 | ||
96baa820 JM |
4088 | static void |
4089 | do_monitor_command (char *cmd, | |
4090 | int from_tty) | |
4091 | { | |
96baa820 JM |
4092 | target_rcmd (cmd, gdb_stdtarg); |
4093 | } | |
4094 | ||
87680a14 JB |
4095 | /* Print the name of each layers of our target stack. */ |
4096 | ||
4097 | static void | |
4098 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4099 | { | |
4100 | struct target_ops *t; | |
4101 | ||
4102 | printf_filtered (_("The current target stack is:\n")); | |
4103 | ||
4104 | for (t = target_stack; t != NULL; t = t->beneath) | |
4105 | { | |
4106 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4107 | } | |
4108 | } | |
4109 | ||
329ea579 PA |
4110 | /* Controls if targets can report that they can/are async. This is |
4111 | just for maintainers to use when debugging gdb. */ | |
4112 | int target_async_permitted = 1; | |
c6ebd6cf VP |
4113 | |
4114 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4115 | executing, target_async_permitted is *not* updated. */ |
329ea579 | 4116 | static int target_async_permitted_1 = 1; |
c6ebd6cf VP |
4117 | |
4118 | static void | |
329ea579 PA |
4119 | maint_set_target_async_command (char *args, int from_tty, |
4120 | struct cmd_list_element *c) | |
c6ebd6cf | 4121 | { |
c35b1492 | 4122 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4123 | { |
4124 | target_async_permitted_1 = target_async_permitted; | |
4125 | error (_("Cannot change this setting while the inferior is running.")); | |
4126 | } | |
4127 | ||
4128 | target_async_permitted = target_async_permitted_1; | |
4129 | } | |
4130 | ||
4131 | static void | |
329ea579 PA |
4132 | maint_show_target_async_command (struct ui_file *file, int from_tty, |
4133 | struct cmd_list_element *c, | |
4134 | const char *value) | |
c6ebd6cf | 4135 | { |
3e43a32a MS |
4136 | fprintf_filtered (file, |
4137 | _("Controlling the inferior in " | |
4138 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4139 | } |
4140 | ||
d914c394 SS |
4141 | /* Temporary copies of permission settings. */ |
4142 | ||
4143 | static int may_write_registers_1 = 1; | |
4144 | static int may_write_memory_1 = 1; | |
4145 | static int may_insert_breakpoints_1 = 1; | |
4146 | static int may_insert_tracepoints_1 = 1; | |
4147 | static int may_insert_fast_tracepoints_1 = 1; | |
4148 | static int may_stop_1 = 1; | |
4149 | ||
4150 | /* Make the user-set values match the real values again. */ | |
4151 | ||
4152 | void | |
4153 | update_target_permissions (void) | |
4154 | { | |
4155 | may_write_registers_1 = may_write_registers; | |
4156 | may_write_memory_1 = may_write_memory; | |
4157 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4158 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4159 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4160 | may_stop_1 = may_stop; | |
4161 | } | |
4162 | ||
4163 | /* The one function handles (most of) the permission flags in the same | |
4164 | way. */ | |
4165 | ||
4166 | static void | |
4167 | set_target_permissions (char *args, int from_tty, | |
4168 | struct cmd_list_element *c) | |
4169 | { | |
4170 | if (target_has_execution) | |
4171 | { | |
4172 | update_target_permissions (); | |
4173 | error (_("Cannot change this setting while the inferior is running.")); | |
4174 | } | |
4175 | ||
4176 | /* Make the real values match the user-changed values. */ | |
4177 | may_write_registers = may_write_registers_1; | |
4178 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4179 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4180 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4181 | may_stop = may_stop_1; | |
4182 | update_observer_mode (); | |
4183 | } | |
4184 | ||
4185 | /* Set memory write permission independently of observer mode. */ | |
4186 | ||
4187 | static void | |
4188 | set_write_memory_permission (char *args, int from_tty, | |
4189 | struct cmd_list_element *c) | |
4190 | { | |
4191 | /* Make the real values match the user-changed values. */ | |
4192 | may_write_memory = may_write_memory_1; | |
4193 | update_observer_mode (); | |
4194 | } | |
4195 | ||
4196 | ||
c906108c | 4197 | void |
fba45db2 | 4198 | initialize_targets (void) |
c906108c SS |
4199 | { |
4200 | init_dummy_target (); | |
4201 | push_target (&dummy_target); | |
4202 | ||
4203 | add_info ("target", target_info, targ_desc); | |
4204 | add_info ("files", target_info, targ_desc); | |
4205 | ||
ccce17b0 | 4206 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4207 | Set target debugging."), _("\ |
4208 | Show target debugging."), _("\ | |
333dabeb DJ |
4209 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4210 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4211 | command."), |
ccce17b0 YQ |
4212 | NULL, |
4213 | show_targetdebug, | |
4214 | &setdebuglist, &showdebuglist); | |
3a11626d | 4215 | |
2bc416ba | 4216 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4217 | &trust_readonly, _("\ |
4218 | Set mode for reading from readonly sections."), _("\ | |
4219 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4220 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4221 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4222 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4223 | NULL, |
920d2a44 | 4224 | show_trust_readonly, |
e707bbc2 | 4225 | &setlist, &showlist); |
96baa820 JM |
4226 | |
4227 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4228 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4229 | |
87680a14 JB |
4230 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4231 | _("Print the name of each layer of the internal target stack."), | |
4232 | &maintenanceprintlist); | |
4233 | ||
c6ebd6cf VP |
4234 | add_setshow_boolean_cmd ("target-async", no_class, |
4235 | &target_async_permitted_1, _("\ | |
4236 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4237 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4238 | Tells gdb whether to control the inferior in asynchronous mode."), | |
329ea579 PA |
4239 | maint_set_target_async_command, |
4240 | maint_show_target_async_command, | |
4241 | &maintenance_set_cmdlist, | |
4242 | &maintenance_show_cmdlist); | |
c6ebd6cf | 4243 | |
d914c394 SS |
4244 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4245 | &may_write_registers_1, _("\ | |
4246 | Set permission to write into registers."), _("\ | |
4247 | Show permission to write into registers."), _("\ | |
4248 | When this permission is on, GDB may write into the target's registers.\n\ | |
4249 | Otherwise, any sort of write attempt will result in an error."), | |
4250 | set_target_permissions, NULL, | |
4251 | &setlist, &showlist); | |
4252 | ||
4253 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4254 | &may_write_memory_1, _("\ | |
4255 | Set permission to write into target memory."), _("\ | |
4256 | Show permission to write into target memory."), _("\ | |
4257 | When this permission is on, GDB may write into the target's memory.\n\ | |
4258 | Otherwise, any sort of write attempt will result in an error."), | |
4259 | set_write_memory_permission, NULL, | |
4260 | &setlist, &showlist); | |
4261 | ||
4262 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4263 | &may_insert_breakpoints_1, _("\ | |
4264 | Set permission to insert breakpoints in the target."), _("\ | |
4265 | Show permission to insert breakpoints in the target."), _("\ | |
4266 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4267 | Otherwise, any sort of insertion attempt will result in an error."), | |
4268 | set_target_permissions, NULL, | |
4269 | &setlist, &showlist); | |
4270 | ||
4271 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4272 | &may_insert_tracepoints_1, _("\ | |
4273 | Set permission to insert tracepoints in the target."), _("\ | |
4274 | Show permission to insert tracepoints in the target."), _("\ | |
4275 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4276 | Otherwise, any sort of insertion attempt will result in an error."), | |
4277 | set_target_permissions, NULL, | |
4278 | &setlist, &showlist); | |
4279 | ||
4280 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4281 | &may_insert_fast_tracepoints_1, _("\ | |
4282 | Set permission to insert fast tracepoints in the target."), _("\ | |
4283 | Show permission to insert fast tracepoints in the target."), _("\ | |
4284 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4285 | Otherwise, any sort of insertion attempt will result in an error."), | |
4286 | set_target_permissions, NULL, | |
4287 | &setlist, &showlist); | |
4288 | ||
4289 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4290 | &may_stop_1, _("\ | |
4291 | Set permission to interrupt or signal the target."), _("\ | |
4292 | Show permission to interrupt or signal the target."), _("\ | |
4293 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4294 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4295 | set_target_permissions, NULL, | |
4296 | &setlist, &showlist); | |
6a3cb8e8 PA |
4297 | |
4298 | add_setshow_boolean_cmd ("auto-connect-native-target", class_support, | |
4299 | &auto_connect_native_target, _("\ | |
4300 | Set whether GDB may automatically connect to the native target."), _("\ | |
4301 | Show whether GDB may automatically connect to the native target."), _("\ | |
4302 | When on, and GDB is not connected to a target yet, GDB\n\ | |
4303 | attempts \"run\" and other commands with the native target."), | |
4304 | NULL, show_auto_connect_native_target, | |
4305 | &setlist, &showlist); | |
c906108c | 4306 | } |