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" | |
30 | #include "bfd.h" | |
31 | #include "symfile.h" | |
32 | #include "objfiles.h" | |
4930751a | 33 | #include "dcache.h" |
c906108c | 34 | #include <signal.h> |
4e052eda | 35 | #include "regcache.h" |
0088c768 | 36 | #include "gdb_assert.h" |
b6591e8b | 37 | #include "gdbcore.h" |
9e35dae4 | 38 | #include "exceptions.h" |
424163ea | 39 | #include "target-descriptions.h" |
e1ac3328 | 40 | #include "gdbthread.h" |
b9db4ced | 41 | #include "solib.h" |
07b82ea5 | 42 | #include "exec.h" |
edb3359d | 43 | #include "inline-frame.h" |
2f4d8875 | 44 | #include "tracepoint.h" |
7313baad | 45 | #include "gdb/fileio.h" |
8ffcbaaf | 46 | #include "agent.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
0a4f40a2 | 50 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
31568a15 TT |
55 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
56 | CORE_ADDR, int); | |
e0d24f8d | 57 | |
a53f3625 TT |
58 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
59 | ||
4229b31d TT |
60 | static ptid_t default_get_ada_task_ptid (struct target_ops *self, |
61 | long lwp, long tid); | |
62 | ||
098dba18 TT |
63 | static int default_follow_fork (struct target_ops *self, int follow_child, |
64 | int detach_fork); | |
65 | ||
8d657035 TT |
66 | static void default_mourn_inferior (struct target_ops *self); |
67 | ||
c25c4a8b | 68 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 69 | |
a14ed312 | 70 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 71 | |
a14ed312 | 72 | static int return_zero (void); |
c906108c | 73 | |
a14ed312 | 74 | void target_ignore (void); |
c906108c | 75 | |
a14ed312 | 76 | static void target_command (char *, int); |
c906108c | 77 | |
a14ed312 | 78 | static struct target_ops *find_default_run_target (char *); |
c906108c | 79 | |
4ac248ca YQ |
80 | static target_xfer_partial_ftype default_xfer_partial; |
81 | ||
c2250ad1 UW |
82 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
83 | ptid_t ptid); | |
84 | ||
0b5a2719 TT |
85 | static int dummy_find_memory_regions (struct target_ops *self, |
86 | find_memory_region_ftype ignore1, | |
87 | void *ignore2); | |
88 | ||
16f796b1 TT |
89 | static char *dummy_make_corefile_notes (struct target_ops *self, |
90 | bfd *ignore1, int *ignore2); | |
91 | ||
770234d3 TT |
92 | static char *default_pid_to_str (struct target_ops *ops, ptid_t ptid); |
93 | ||
6b84065d TT |
94 | static int find_default_can_async_p (struct target_ops *ignore); |
95 | ||
96 | static int find_default_is_async_p (struct target_ops *ignore); | |
97 | ||
fe31bf5b TT |
98 | static enum exec_direction_kind default_execution_direction |
99 | (struct target_ops *self); | |
100 | ||
1101cb7b TT |
101 | #include "target-delegates.c" |
102 | ||
a14ed312 | 103 | static void init_dummy_target (void); |
c906108c | 104 | |
aa869812 AC |
105 | static struct target_ops debug_target; |
106 | ||
a14ed312 | 107 | static void debug_to_open (char *, int); |
c906108c | 108 | |
f32dbf8c MM |
109 | static void debug_to_prepare_to_store (struct target_ops *self, |
110 | struct regcache *); | |
c906108c | 111 | |
a14ed312 | 112 | static void debug_to_files_info (struct target_ops *); |
c906108c | 113 | |
3db08215 | 114 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 115 | struct bp_target_info *); |
c906108c | 116 | |
3db08215 | 117 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 118 | struct bp_target_info *); |
c906108c | 119 | |
5461485a TT |
120 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
121 | int, int, int); | |
ccaa32c7 | 122 | |
23a26771 TT |
123 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
124 | struct gdbarch *, | |
a6d9a66e | 125 | struct bp_target_info *); |
ccaa32c7 | 126 | |
a64dc96c TT |
127 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
128 | struct gdbarch *, | |
a6d9a66e | 129 | struct bp_target_info *); |
ccaa32c7 | 130 | |
7bb99c53 TT |
131 | static int debug_to_insert_watchpoint (struct target_ops *self, |
132 | CORE_ADDR, int, int, | |
0cf6dd15 | 133 | struct expression *); |
ccaa32c7 | 134 | |
11b5219a TT |
135 | static int debug_to_remove_watchpoint (struct target_ops *self, |
136 | CORE_ADDR, int, int, | |
0cf6dd15 | 137 | struct expression *); |
ccaa32c7 | 138 | |
4aa7a7f5 | 139 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 140 | |
5009afc5 AS |
141 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
142 | CORE_ADDR, CORE_ADDR, int); | |
143 | ||
31568a15 TT |
144 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
145 | CORE_ADDR, int); | |
e0d24f8d | 146 | |
c3a5ff89 TT |
147 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
148 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
149 | struct expression *); |
150 | ||
c42bf286 | 151 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 152 | |
d2f640d4 | 153 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 154 | |
2e1e1a19 | 155 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 156 | |
ae3bd431 | 157 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 158 | |
e3594fd1 | 159 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 160 | |
71a9f134 | 161 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 162 | |
da82bd6b | 163 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 164 | |
1eab8a48 | 165 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 166 | |
c906108c | 167 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 168 | array; the current index into the array; the allocated size of the |
c906108c SS |
169 | array. */ |
170 | struct target_ops **target_structs; | |
171 | unsigned target_struct_size; | |
c906108c SS |
172 | unsigned target_struct_allocsize; |
173 | #define DEFAULT_ALLOCSIZE 10 | |
174 | ||
175 | /* The initial current target, so that there is always a semi-valid | |
176 | current target. */ | |
177 | ||
178 | static struct target_ops dummy_target; | |
179 | ||
180 | /* Top of target stack. */ | |
181 | ||
258b763a | 182 | static struct target_ops *target_stack; |
c906108c SS |
183 | |
184 | /* The target structure we are currently using to talk to a process | |
185 | or file or whatever "inferior" we have. */ | |
186 | ||
187 | struct target_ops current_target; | |
188 | ||
189 | /* Command list for target. */ | |
190 | ||
191 | static struct cmd_list_element *targetlist = NULL; | |
192 | ||
cf7a04e8 DJ |
193 | /* Nonzero if we should trust readonly sections from the |
194 | executable when reading memory. */ | |
195 | ||
196 | static int trust_readonly = 0; | |
197 | ||
8defab1a DJ |
198 | /* Nonzero if we should show true memory content including |
199 | memory breakpoint inserted by gdb. */ | |
200 | ||
201 | static int show_memory_breakpoints = 0; | |
202 | ||
d914c394 SS |
203 | /* These globals control whether GDB attempts to perform these |
204 | operations; they are useful for targets that need to prevent | |
205 | inadvertant disruption, such as in non-stop mode. */ | |
206 | ||
207 | int may_write_registers = 1; | |
208 | ||
209 | int may_write_memory = 1; | |
210 | ||
211 | int may_insert_breakpoints = 1; | |
212 | ||
213 | int may_insert_tracepoints = 1; | |
214 | ||
215 | int may_insert_fast_tracepoints = 1; | |
216 | ||
217 | int may_stop = 1; | |
218 | ||
c906108c SS |
219 | /* Non-zero if we want to see trace of target level stuff. */ |
220 | ||
ccce17b0 | 221 | static unsigned int targetdebug = 0; |
920d2a44 AC |
222 | static void |
223 | show_targetdebug (struct ui_file *file, int from_tty, | |
224 | struct cmd_list_element *c, const char *value) | |
225 | { | |
226 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
227 | } | |
c906108c | 228 | |
a14ed312 | 229 | static void setup_target_debug (void); |
c906108c | 230 | |
c906108c SS |
231 | /* The user just typed 'target' without the name of a target. */ |
232 | ||
c906108c | 233 | static void |
fba45db2 | 234 | target_command (char *arg, int from_tty) |
c906108c SS |
235 | { |
236 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
237 | gdb_stdout); | |
238 | } | |
239 | ||
c35b1492 PA |
240 | /* Default target_has_* methods for process_stratum targets. */ |
241 | ||
242 | int | |
243 | default_child_has_all_memory (struct target_ops *ops) | |
244 | { | |
245 | /* If no inferior selected, then we can't read memory here. */ | |
246 | if (ptid_equal (inferior_ptid, null_ptid)) | |
247 | return 0; | |
248 | ||
249 | return 1; | |
250 | } | |
251 | ||
252 | int | |
253 | default_child_has_memory (struct target_ops *ops) | |
254 | { | |
255 | /* If no inferior selected, then we can't read memory here. */ | |
256 | if (ptid_equal (inferior_ptid, null_ptid)) | |
257 | return 0; | |
258 | ||
259 | return 1; | |
260 | } | |
261 | ||
262 | int | |
263 | default_child_has_stack (struct target_ops *ops) | |
264 | { | |
265 | /* If no inferior selected, there's no stack. */ | |
266 | if (ptid_equal (inferior_ptid, null_ptid)) | |
267 | return 0; | |
268 | ||
269 | return 1; | |
270 | } | |
271 | ||
272 | int | |
273 | default_child_has_registers (struct target_ops *ops) | |
274 | { | |
275 | /* Can't read registers from no inferior. */ | |
276 | if (ptid_equal (inferior_ptid, null_ptid)) | |
277 | return 0; | |
278 | ||
279 | return 1; | |
280 | } | |
281 | ||
282 | int | |
aeaec162 | 283 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
284 | { |
285 | /* If there's no thread selected, then we can't make it run through | |
286 | hoops. */ | |
aeaec162 | 287 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
288 | return 0; |
289 | ||
290 | return 1; | |
291 | } | |
292 | ||
293 | ||
294 | int | |
295 | target_has_all_memory_1 (void) | |
296 | { | |
297 | struct target_ops *t; | |
298 | ||
299 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
300 | if (t->to_has_all_memory (t)) | |
301 | return 1; | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | int | |
307 | target_has_memory_1 (void) | |
308 | { | |
309 | struct target_ops *t; | |
310 | ||
311 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
312 | if (t->to_has_memory (t)) | |
313 | return 1; | |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
318 | int | |
319 | target_has_stack_1 (void) | |
320 | { | |
321 | struct target_ops *t; | |
322 | ||
323 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
324 | if (t->to_has_stack (t)) | |
325 | return 1; | |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
330 | int | |
331 | target_has_registers_1 (void) | |
332 | { | |
333 | struct target_ops *t; | |
334 | ||
335 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
336 | if (t->to_has_registers (t)) | |
337 | return 1; | |
338 | ||
339 | return 0; | |
340 | } | |
341 | ||
342 | int | |
aeaec162 | 343 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
344 | { |
345 | struct target_ops *t; | |
346 | ||
347 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 348 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
349 | return 1; |
350 | ||
351 | return 0; | |
352 | } | |
353 | ||
aeaec162 TT |
354 | int |
355 | target_has_execution_current (void) | |
356 | { | |
357 | return target_has_execution_1 (inferior_ptid); | |
358 | } | |
359 | ||
c22a2b88 TT |
360 | /* Complete initialization of T. This ensures that various fields in |
361 | T are set, if needed by the target implementation. */ | |
c906108c SS |
362 | |
363 | void | |
c22a2b88 | 364 | complete_target_initialization (struct target_ops *t) |
c906108c | 365 | { |
0088c768 | 366 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
367 | if (t->to_xfer_partial == NULL) |
368 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 369 | |
c35b1492 PA |
370 | if (t->to_has_all_memory == NULL) |
371 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
372 | ||
373 | if (t->to_has_memory == NULL) | |
374 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
375 | ||
376 | if (t->to_has_stack == NULL) | |
377 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
378 | ||
379 | if (t->to_has_registers == NULL) | |
380 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
381 | ||
382 | if (t->to_has_execution == NULL) | |
aeaec162 | 383 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
384 | |
385 | install_delegators (t); | |
c22a2b88 TT |
386 | } |
387 | ||
388 | /* Add possible target architecture T to the list and add a new | |
389 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
390 | completer if not NULL. */ | |
391 | ||
392 | void | |
393 | add_target_with_completer (struct target_ops *t, | |
394 | completer_ftype *completer) | |
395 | { | |
396 | struct cmd_list_element *c; | |
397 | ||
398 | complete_target_initialization (t); | |
c35b1492 | 399 | |
c906108c SS |
400 | if (!target_structs) |
401 | { | |
402 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
403 | target_structs = (struct target_ops **) xmalloc | |
404 | (target_struct_allocsize * sizeof (*target_structs)); | |
405 | } | |
406 | if (target_struct_size >= target_struct_allocsize) | |
407 | { | |
408 | target_struct_allocsize *= 2; | |
409 | target_structs = (struct target_ops **) | |
c5aa993b JM |
410 | xrealloc ((char *) target_structs, |
411 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
412 | } |
413 | target_structs[target_struct_size++] = t; | |
c906108c SS |
414 | |
415 | if (targetlist == NULL) | |
1bedd215 AC |
416 | add_prefix_cmd ("target", class_run, target_command, _("\ |
417 | Connect to a target machine or process.\n\ | |
c906108c SS |
418 | The first argument is the type or protocol of the target machine.\n\ |
419 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
420 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 421 | `help target ' followed by the protocol name."), |
c906108c | 422 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
423 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
424 | &targetlist); | |
425 | if (completer != NULL) | |
426 | set_cmd_completer (c, completer); | |
427 | } | |
428 | ||
429 | /* Add a possible target architecture to the list. */ | |
430 | ||
431 | void | |
432 | add_target (struct target_ops *t) | |
433 | { | |
434 | add_target_with_completer (t, NULL); | |
c906108c SS |
435 | } |
436 | ||
b48d48eb MM |
437 | /* See target.h. */ |
438 | ||
439 | void | |
440 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
441 | { | |
442 | struct cmd_list_element *c; | |
443 | char *alt; | |
444 | ||
445 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
446 | see PR cli/15104. */ | |
447 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
448 | alt = xstrprintf ("target %s", t->to_shortname); | |
449 | deprecate_cmd (c, alt); | |
450 | } | |
451 | ||
c906108c SS |
452 | /* Stub functions */ |
453 | ||
454 | void | |
fba45db2 | 455 | target_ignore (void) |
c906108c SS |
456 | { |
457 | } | |
458 | ||
7d85a9c0 JB |
459 | void |
460 | target_kill (void) | |
461 | { | |
423a4807 TT |
462 | if (targetdebug) |
463 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
7d85a9c0 | 464 | |
423a4807 | 465 | current_target.to_kill (¤t_target); |
7d85a9c0 JB |
466 | } |
467 | ||
11cf8741 JM |
468 | void |
469 | target_load (char *arg, int from_tty) | |
470 | { | |
4e5d721f | 471 | target_dcache_invalidate (); |
71a9f134 | 472 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
473 | } |
474 | ||
947b8855 PA |
475 | void |
476 | target_create_inferior (char *exec_file, char *args, | |
477 | char **env, int from_tty) | |
136d6dae VP |
478 | { |
479 | struct target_ops *t; | |
5d502164 | 480 | |
136d6dae VP |
481 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
482 | { | |
483 | if (t->to_create_inferior != NULL) | |
484 | { | |
485 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
486 | if (targetdebug) |
487 | fprintf_unfiltered (gdb_stdlog, | |
488 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
489 | exec_file, args, from_tty); | |
136d6dae VP |
490 | return; |
491 | } | |
492 | } | |
493 | ||
494 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 495 | _("could not find a target to create inferior")); |
136d6dae VP |
496 | } |
497 | ||
d9d2d8b6 PA |
498 | void |
499 | target_terminal_inferior (void) | |
500 | { | |
501 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 502 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
503 | this point the target is not async yet. However, if sync_execution |
504 | is not set, we know it will become async prior to resume. */ | |
505 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
506 | return; |
507 | ||
508 | /* If GDB is resuming the inferior in the foreground, install | |
509 | inferior's terminal modes. */ | |
d2f640d4 | 510 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 511 | } |
136d6dae | 512 | |
c906108c | 513 | static int |
fba45db2 KB |
514 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
515 | struct target_ops *t) | |
c906108c | 516 | { |
c378eb4e MS |
517 | errno = EIO; /* Can't read/write this location. */ |
518 | return 0; /* No bytes handled. */ | |
c906108c SS |
519 | } |
520 | ||
521 | static void | |
fba45db2 | 522 | tcomplain (void) |
c906108c | 523 | { |
8a3fe4f8 | 524 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
525 | current_target.to_shortname); |
526 | } | |
527 | ||
528 | void | |
fba45db2 | 529 | noprocess (void) |
c906108c | 530 | { |
8a3fe4f8 | 531 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
532 | } |
533 | ||
c906108c | 534 | static void |
0a4f40a2 | 535 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 536 | { |
a3f17187 | 537 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
538 | } |
539 | ||
0ef643c8 JB |
540 | /* A default implementation for the to_get_ada_task_ptid target method. |
541 | ||
542 | This function builds the PTID by using both LWP and TID as part of | |
543 | the PTID lwp and tid elements. The pid used is the pid of the | |
544 | inferior_ptid. */ | |
545 | ||
2c0b251b | 546 | static ptid_t |
1e6b91a4 | 547 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
548 | { |
549 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
550 | } | |
551 | ||
32231432 | 552 | static enum exec_direction_kind |
4c612759 | 553 | default_execution_direction (struct target_ops *self) |
32231432 PA |
554 | { |
555 | if (!target_can_execute_reverse) | |
556 | return EXEC_FORWARD; | |
557 | else if (!target_can_async_p ()) | |
558 | return EXEC_FORWARD; | |
559 | else | |
560 | gdb_assert_not_reached ("\ | |
561 | to_execution_direction must be implemented for reverse async"); | |
562 | } | |
563 | ||
7998dfc3 AC |
564 | /* Go through the target stack from top to bottom, copying over zero |
565 | entries in current_target, then filling in still empty entries. In | |
566 | effect, we are doing class inheritance through the pushed target | |
567 | vectors. | |
568 | ||
569 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
570 | is currently implemented, is that it discards any knowledge of | |
571 | which target an inherited method originally belonged to. | |
572 | Consequently, new new target methods should instead explicitly and | |
573 | locally search the target stack for the target that can handle the | |
574 | request. */ | |
c906108c SS |
575 | |
576 | static void | |
7998dfc3 | 577 | update_current_target (void) |
c906108c | 578 | { |
7998dfc3 AC |
579 | struct target_ops *t; |
580 | ||
08d8bcd7 | 581 | /* First, reset current's contents. */ |
7998dfc3 AC |
582 | memset (¤t_target, 0, sizeof (current_target)); |
583 | ||
1101cb7b TT |
584 | /* Install the delegators. */ |
585 | install_delegators (¤t_target); | |
586 | ||
7998dfc3 AC |
587 | #define INHERIT(FIELD, TARGET) \ |
588 | if (!current_target.FIELD) \ | |
589 | current_target.FIELD = (TARGET)->FIELD | |
590 | ||
591 | for (t = target_stack; t; t = t->beneath) | |
592 | { | |
593 | INHERIT (to_shortname, t); | |
594 | INHERIT (to_longname, t); | |
595 | INHERIT (to_doc, t); | |
b52323fa UW |
596 | /* Do not inherit to_open. */ |
597 | /* Do not inherit to_close. */ | |
136d6dae | 598 | /* Do not inherit to_attach. */ |
bebd3233 | 599 | /* Do not inherit to_post_attach. */ |
dc177b7a | 600 | INHERIT (to_attach_no_wait, t); |
136d6dae | 601 | /* Do not inherit to_detach. */ |
597320e7 | 602 | /* Do not inherit to_disconnect. */ |
28439f5e | 603 | /* Do not inherit to_resume. */ |
117de6a9 | 604 | /* Do not inherit to_wait. */ |
28439f5e PA |
605 | /* Do not inherit to_fetch_registers. */ |
606 | /* Do not inherit to_store_registers. */ | |
6c628163 | 607 | /* Do not inherit to_prepare_to_store. */ |
c8e73a31 | 608 | INHERIT (deprecated_xfer_memory, t); |
f86e59b2 | 609 | /* Do not inherit to_files_info. */ |
3db08215 MM |
610 | /* Do not inherit to_insert_breakpoint. */ |
611 | /* Do not inherit to_remove_breakpoint. */ | |
52b51d06 | 612 | /* Do not inherit to_can_use_hw_breakpoint. */ |
61b371f9 | 613 | /* Do not inherit to_insert_hw_breakpoint. */ |
418dabac | 614 | /* Do not inherit to_remove_hw_breakpoint. */ |
f1310107 | 615 | /* Do not inherit to_ranged_break_num_registers. */ |
016facd4 | 616 | /* Do not inherit to_insert_watchpoint. */ |
61dd109f | 617 | /* Do not inherit to_remove_watchpoint. */ |
9c06b0b4 TJB |
618 | /* Do not inherit to_insert_mask_watchpoint. */ |
619 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 620 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 621 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 622 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 623 | /* Do not inherit to_stopped_by_watchpoint. */ |
65f160a9 | 624 | /* Do not inherit to_watchpoint_addr_within_range. */ |
d03655e4 | 625 | /* Do not inherit to_region_ok_for_hw_watchpoint. */ |
77cdffe9 | 626 | /* Do not inherit to_can_accel_watchpoint_condition. */ |
9c06b0b4 | 627 | /* Do not inherit to_masked_watch_num_registers. */ |
0343661d | 628 | /* Do not inherit to_terminal_init. */ |
ddeaacc9 | 629 | /* Do not inherit to_terminal_inferior. */ |
74fcbef9 | 630 | /* Do not inherit to_terminal_ours_for_output. */ |
e4a733f1 | 631 | /* Do not inherit to_terminal_ours. */ |
c6ea8f79 | 632 | /* Do not inherit to_terminal_save_ours. */ |
e19e919f | 633 | /* Do not inherit to_terminal_info. */ |
7d85a9c0 | 634 | /* Do not inherit to_kill. */ |
7634da87 | 635 | /* Do not inherit to_load. */ |
136d6dae | 636 | /* Do no inherit to_create_inferior. */ |
340ba4bf | 637 | /* Do not inherit to_post_startup_inferior. */ |
5958ebeb | 638 | /* Do not inherit to_insert_fork_catchpoint. */ |
e1a21fb7 | 639 | /* Do not inherit to_remove_fork_catchpoint. */ |
7e18a8dc | 640 | /* Do not inherit to_insert_vfork_catchpoint. */ |
95c3375e | 641 | /* Do not inherit to_remove_vfork_catchpoint. */ |
ee057212 | 642 | /* Do not inherit to_follow_fork. */ |
62f64d7a | 643 | /* Do not inherit to_insert_exec_catchpoint. */ |
cda0f38c | 644 | /* Do not inherit to_remove_exec_catchpoint. */ |
6a9fa051 | 645 | /* Do not inherit to_set_syscall_catchpoint. */ |
0db88c1d | 646 | /* Do not inherit to_has_exited. */ |
82892036 | 647 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 648 | INHERIT (to_can_run, t); |
2455069d | 649 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 650 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
651 | /* Do not inherit to_thread_alive. */ |
652 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 653 | /* Do not inherit to_pid_to_str. */ |
4a7e6dda | 654 | /* Do not inherit to_extra_thread_info. */ |
825828fc | 655 | /* Do not inherit to_thread_name. */ |
46ee7e8d | 656 | /* Do not inherit to_stop. */ |
4b8a223f | 657 | /* Do not inherit to_xfer_partial. */ |
a53f3625 | 658 | /* Do not inherit to_rcmd. */ |
830ca330 | 659 | /* Do not inherit to_pid_to_exec_file. */ |
d9cb0195 | 660 | /* Do not inherit to_log_command. */ |
7998dfc3 | 661 | INHERIT (to_stratum, t); |
c378eb4e MS |
662 | /* Do not inherit to_has_all_memory. */ |
663 | /* Do not inherit to_has_memory. */ | |
664 | /* Do not inherit to_has_stack. */ | |
665 | /* Do not inherit to_has_registers. */ | |
666 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 667 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
668 | /* Do not inherit to_can_async_p. */ |
669 | /* Do not inherit to_is_async_p. */ | |
670 | /* Do not inherit to_async. */ | |
0b5a2719 | 671 | /* Do not inherit to_find_memory_regions. */ |
16f796b1 | 672 | /* Do not inherit to_make_corefile_notes. */ |
3dbafbbb | 673 | /* Do not inherit to_get_bookmark. */ |
9bb9d61d | 674 | /* Do not inherit to_goto_bookmark. */ |
117de6a9 | 675 | /* Do not inherit to_get_thread_local_address. */ |
53e1cfc7 | 676 | /* Do not inherit to_can_execute_reverse. */ |
fe31bf5b | 677 | /* Do not inherit to_execution_direction. */ |
43eba180 | 678 | /* Do not inherit to_thread_architecture. */ |
424163ea | 679 | /* Do not inherit to_read_description. */ |
4229b31d | 680 | /* Do not inherit to_get_ada_task_ptid. */ |
08388c79 | 681 | /* Do not inherit to_search_memory. */ |
a7304748 | 682 | /* Do not inherit to_supports_multi_process. */ |
aab1b22d | 683 | /* Do not inherit to_supports_enable_disable_tracepoint. */ |
9409d39e | 684 | /* Do not inherit to_supports_string_tracing. */ |
5536135b | 685 | /* Do not inherit to_trace_init. */ |
9a980a22 | 686 | /* Do not inherit to_download_tracepoint. */ |
719acc4a | 687 | /* Do not inherit to_can_download_tracepoint. */ |
94eb98b9 | 688 | /* Do not inherit to_download_trace_state_variable. */ |
151f70f1 | 689 | /* Do not inherit to_enable_tracepoint. */ |
05c41993 | 690 | /* Do not inherit to_disable_tracepoint. */ |
86dd181d | 691 | /* Do not inherit to_trace_set_readonly_regions. */ |
25da2e80 | 692 | /* Do not inherit to_trace_start. */ |
4072d4ff | 693 | /* Do not inherit to_get_trace_status. */ |
6fea14cd | 694 | /* Do not inherit to_get_tracepoint_status. */ |
e51c07ea | 695 | /* Do not inherit to_trace_stop. */ |
afc94e66 | 696 | /* Do not inherit to_trace_find. */ |
959bcd0b | 697 | /* Do not inherit to_get_trace_state_variable_value. */ |
a2e6c147 | 698 | /* Do not inherit to_save_trace_data. */ |
1e949b00 | 699 | /* Do not inherit to_upload_tracepoints. */ |
08120467 | 700 | /* Do not inherit to_upload_trace_state_variables. */ |
ace92e7d | 701 | /* Do not inherit to_get_raw_trace_data. */ |
9249843f | 702 | /* Do not inherit to_get_min_fast_tracepoint_insn_len. */ |
0bcfeddf | 703 | /* Do not inherit to_set_disconnected_tracing. */ |
8d526939 | 704 | /* Do not inherit to_set_circular_trace_buffer. */ |
91df8d1d | 705 | /* Do not inherit to_set_trace_buffer_size. */ |
8586ccaa | 706 | /* Do not inherit to_set_trace_notes. */ |
22bcceee | 707 | /* Do not inherit to_get_tib_address. */ |
dcd6917f | 708 | /* Do not inherit to_set_permissions. */ |
4c3e4425 | 709 | /* Do not inherit to_static_tracepoint_marker_at. */ |
d6522a22 | 710 | /* Do not inherit to_static_tracepoint_markers_by_strid. */ |
92155eeb | 711 | /* Do not inherit to_traceframe_info. */ |
d9db5b21 | 712 | /* Do not inherit to_use_agent. */ |
9a7d8b48 | 713 | /* Do not inherit to_can_use_agent. */ |
0de91722 | 714 | /* Do not inherit to_augmented_libraries_svr4_read. */ |
7998dfc3 | 715 | INHERIT (to_magic, t); |
ccfde2a0 TT |
716 | /* Do not inherit |
717 | to_supports_evaluation_of_breakpoint_conditions. */ | |
843f59ed | 718 | /* Do not inherit to_can_run_breakpoint_commands. */ |
fd79ecee | 719 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
720 | /* Do not inherit to_flash_erase. */ |
721 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
722 | } |
723 | #undef INHERIT | |
724 | ||
725 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
726 | it. Some entries are defaulted to a method that print an error, |
727 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
728 | |
729 | #define de_fault(field, value) \ | |
7998dfc3 AC |
730 | if (!current_target.field) \ |
731 | current_target.field = value | |
0d06e24b | 732 | |
2bc416ba DJ |
733 | de_fault (to_open, |
734 | (void (*) (char *, int)) | |
0d06e24b | 735 | tcomplain); |
2bc416ba | 736 | de_fault (to_close, |
de90e03d | 737 | (void (*) (struct target_ops *)) |
0d06e24b | 738 | target_ignore); |
2bc416ba | 739 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
740 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
741 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 742 | nomemory); |
2bc416ba | 743 | de_fault (to_can_run, |
da82bd6b | 744 | (int (*) (struct target_ops *)) |
0d06e24b | 745 | return_zero); |
424163ea | 746 | current_target.to_read_description = NULL; |
32231432 | 747 | |
c906108c | 748 | #undef de_fault |
c906108c | 749 | |
7998dfc3 AC |
750 | /* Finally, position the target-stack beneath the squashed |
751 | "current_target". That way code looking for a non-inherited | |
752 | target method can quickly and simply find it. */ | |
753 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
754 | |
755 | if (targetdebug) | |
756 | setup_target_debug (); | |
c906108c SS |
757 | } |
758 | ||
759 | /* Push a new target type into the stack of the existing target accessors, | |
760 | possibly superseding some of the existing accessors. | |
761 | ||
c906108c SS |
762 | Rather than allow an empty stack, we always have the dummy target at |
763 | the bottom stratum, so we can call the function vectors without | |
764 | checking them. */ | |
765 | ||
b26a4dcb | 766 | void |
fba45db2 | 767 | push_target (struct target_ops *t) |
c906108c | 768 | { |
258b763a | 769 | struct target_ops **cur; |
c906108c SS |
770 | |
771 | /* Check magic number. If wrong, it probably means someone changed | |
772 | the struct definition, but not all the places that initialize one. */ | |
773 | if (t->to_magic != OPS_MAGIC) | |
774 | { | |
c5aa993b JM |
775 | fprintf_unfiltered (gdb_stderr, |
776 | "Magic number of %s target struct wrong\n", | |
777 | t->to_shortname); | |
3e43a32a MS |
778 | internal_error (__FILE__, __LINE__, |
779 | _("failed internal consistency check")); | |
c906108c SS |
780 | } |
781 | ||
258b763a AC |
782 | /* Find the proper stratum to install this target in. */ |
783 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 784 | { |
258b763a | 785 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
786 | break; |
787 | } | |
788 | ||
258b763a | 789 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 790 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
791 | targets to CUR, and not just those at this stratum level. */ |
792 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
793 | { | |
794 | /* There's already something at this stratum level. Close it, | |
795 | and un-hook it from the stack. */ | |
796 | struct target_ops *tmp = (*cur); | |
5d502164 | 797 | |
258b763a AC |
798 | (*cur) = (*cur)->beneath; |
799 | tmp->beneath = NULL; | |
460014f5 | 800 | target_close (tmp); |
258b763a | 801 | } |
c906108c SS |
802 | |
803 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
804 | t->beneath = (*cur); |
805 | (*cur) = t; | |
c906108c SS |
806 | |
807 | update_current_target (); | |
c906108c SS |
808 | } |
809 | ||
2bc416ba | 810 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
811 | Return how many times it was removed (0 or 1). */ |
812 | ||
813 | int | |
fba45db2 | 814 | unpush_target (struct target_ops *t) |
c906108c | 815 | { |
258b763a AC |
816 | struct target_ops **cur; |
817 | struct target_ops *tmp; | |
c906108c | 818 | |
c8d104ad PA |
819 | if (t->to_stratum == dummy_stratum) |
820 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 821 | _("Attempt to unpush the dummy target")); |
c8d104ad | 822 | |
c906108c | 823 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 824 | can only occur once in the target stack. */ |
c906108c | 825 | |
258b763a AC |
826 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
827 | { | |
828 | if ((*cur) == t) | |
829 | break; | |
830 | } | |
c906108c | 831 | |
305436e0 PA |
832 | /* If we don't find target_ops, quit. Only open targets should be |
833 | closed. */ | |
258b763a | 834 | if ((*cur) == NULL) |
305436e0 | 835 | return 0; |
5269965e | 836 | |
c378eb4e | 837 | /* Unchain the target. */ |
258b763a AC |
838 | tmp = (*cur); |
839 | (*cur) = (*cur)->beneath; | |
840 | tmp->beneath = NULL; | |
c906108c SS |
841 | |
842 | update_current_target (); | |
c906108c | 843 | |
305436e0 PA |
844 | /* Finally close the target. Note we do this after unchaining, so |
845 | any target method calls from within the target_close | |
846 | implementation don't end up in T anymore. */ | |
460014f5 | 847 | target_close (t); |
305436e0 | 848 | |
c906108c SS |
849 | return 1; |
850 | } | |
851 | ||
aa76d38d | 852 | void |
460014f5 | 853 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 854 | { |
87ab71f0 | 855 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 856 | { |
aa76d38d PA |
857 | if (!unpush_target (target_stack)) |
858 | { | |
859 | fprintf_unfiltered (gdb_stderr, | |
860 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 861 | target_stack->to_shortname); |
aa76d38d PA |
862 | internal_error (__FILE__, __LINE__, |
863 | _("failed internal consistency check")); | |
864 | break; | |
865 | } | |
866 | } | |
867 | } | |
868 | ||
87ab71f0 | 869 | void |
460014f5 | 870 | pop_all_targets (void) |
87ab71f0 | 871 | { |
460014f5 | 872 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
873 | } |
874 | ||
c0edd9ed JK |
875 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
876 | ||
877 | int | |
878 | target_is_pushed (struct target_ops *t) | |
879 | { | |
880 | struct target_ops **cur; | |
881 | ||
882 | /* Check magic number. If wrong, it probably means someone changed | |
883 | the struct definition, but not all the places that initialize one. */ | |
884 | if (t->to_magic != OPS_MAGIC) | |
885 | { | |
886 | fprintf_unfiltered (gdb_stderr, | |
887 | "Magic number of %s target struct wrong\n", | |
888 | t->to_shortname); | |
3e43a32a MS |
889 | internal_error (__FILE__, __LINE__, |
890 | _("failed internal consistency check")); | |
c0edd9ed JK |
891 | } |
892 | ||
893 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
894 | if (*cur == t) | |
895 | return 1; | |
896 | ||
897 | return 0; | |
898 | } | |
899 | ||
72f5cf0e | 900 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
901 | current thread's thread-local storage with offset OFFSET. */ |
902 | CORE_ADDR | |
903 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
904 | { | |
905 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
906 | struct target_ops *target; |
907 | ||
908 | for (target = current_target.beneath; | |
909 | target != NULL; | |
910 | target = target->beneath) | |
911 | { | |
912 | if (target->to_get_thread_local_address != NULL) | |
913 | break; | |
914 | } | |
9e35dae4 | 915 | |
117de6a9 | 916 | if (target != NULL |
f5656ead | 917 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
918 | { |
919 | ptid_t ptid = inferior_ptid; | |
920 | volatile struct gdb_exception ex; | |
921 | ||
922 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
923 | { | |
924 | CORE_ADDR lm_addr; | |
925 | ||
926 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 927 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
928 | objfile); |
929 | /* If it's 0, throw the appropriate exception. */ | |
930 | if (lm_addr == 0) | |
931 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
932 | _("TLS load module not found")); | |
933 | ||
3e43a32a MS |
934 | addr = target->to_get_thread_local_address (target, ptid, |
935 | lm_addr, offset); | |
9e35dae4 DJ |
936 | } |
937 | /* If an error occurred, print TLS related messages here. Otherwise, | |
938 | throw the error to some higher catcher. */ | |
939 | if (ex.reason < 0) | |
940 | { | |
941 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
942 | ||
943 | switch (ex.error) | |
944 | { | |
945 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
946 | error (_("Cannot find thread-local variables " |
947 | "in this thread library.")); | |
9e35dae4 DJ |
948 | break; |
949 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
950 | if (objfile_is_library) | |
951 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 952 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
953 | else |
954 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 955 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
956 | break; |
957 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
958 | if (objfile_is_library) | |
959 | error (_("The inferior has not yet allocated storage for" | |
960 | " thread-local variables in\n" | |
961 | "the shared library `%s'\n" | |
962 | "for %s"), | |
4262abfb | 963 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
964 | else |
965 | error (_("The inferior has not yet allocated storage for" | |
966 | " thread-local variables in\n" | |
967 | "the executable `%s'\n" | |
968 | "for %s"), | |
4262abfb | 969 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
970 | break; |
971 | case TLS_GENERIC_ERROR: | |
972 | if (objfile_is_library) | |
973 | error (_("Cannot find thread-local storage for %s, " | |
974 | "shared library %s:\n%s"), | |
975 | target_pid_to_str (ptid), | |
4262abfb | 976 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
977 | else |
978 | error (_("Cannot find thread-local storage for %s, " | |
979 | "executable file %s:\n%s"), | |
980 | target_pid_to_str (ptid), | |
4262abfb | 981 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
982 | break; |
983 | default: | |
984 | throw_exception (ex); | |
985 | break; | |
986 | } | |
987 | } | |
988 | } | |
989 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
990 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
991 | else | |
992 | error (_("Cannot find thread-local variables on this target")); | |
993 | ||
994 | return addr; | |
995 | } | |
996 | ||
6be7b56e | 997 | const char * |
9b409511 | 998 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
999 | { |
1000 | #define CASE(X) case X: return #X | |
1001 | switch (err) | |
1002 | { | |
1003 | CASE(TARGET_XFER_E_IO); | |
1004 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1005 | default: | |
1006 | return "<unknown>"; | |
1007 | } | |
1008 | #undef CASE | |
1009 | }; | |
1010 | ||
1011 | ||
c906108c SS |
1012 | #undef MIN |
1013 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1014 | ||
1015 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1016 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1017 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1018 | is responsible for freeing it. Return the number of bytes successfully | |
1019 | read. */ | |
1020 | ||
1021 | int | |
fba45db2 | 1022 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1023 | { |
c2e8b827 | 1024 | int tlen, offset, i; |
1b0ba102 | 1025 | gdb_byte buf[4]; |
c906108c SS |
1026 | int errcode = 0; |
1027 | char *buffer; | |
1028 | int buffer_allocated; | |
1029 | char *bufptr; | |
1030 | unsigned int nbytes_read = 0; | |
1031 | ||
6217bf3e MS |
1032 | gdb_assert (string); |
1033 | ||
c906108c SS |
1034 | /* Small for testing. */ |
1035 | buffer_allocated = 4; | |
1036 | buffer = xmalloc (buffer_allocated); | |
1037 | bufptr = buffer; | |
1038 | ||
c906108c SS |
1039 | while (len > 0) |
1040 | { | |
1041 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1042 | offset = memaddr & 3; | |
1043 | ||
1b0ba102 | 1044 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1045 | if (errcode != 0) |
1046 | { | |
1047 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1048 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1049 | a single byte. */ |
1050 | tlen = 1; | |
1051 | offset = 0; | |
b8eb5af0 | 1052 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1053 | if (errcode != 0) |
1054 | goto done; | |
1055 | } | |
1056 | ||
1057 | if (bufptr - buffer + tlen > buffer_allocated) | |
1058 | { | |
1059 | unsigned int bytes; | |
5d502164 | 1060 | |
c906108c SS |
1061 | bytes = bufptr - buffer; |
1062 | buffer_allocated *= 2; | |
1063 | buffer = xrealloc (buffer, buffer_allocated); | |
1064 | bufptr = buffer + bytes; | |
1065 | } | |
1066 | ||
1067 | for (i = 0; i < tlen; i++) | |
1068 | { | |
1069 | *bufptr++ = buf[i + offset]; | |
1070 | if (buf[i + offset] == '\000') | |
1071 | { | |
1072 | nbytes_read += i + 1; | |
1073 | goto done; | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | memaddr += tlen; | |
1078 | len -= tlen; | |
1079 | nbytes_read += tlen; | |
1080 | } | |
c5aa993b | 1081 | done: |
6217bf3e | 1082 | *string = buffer; |
c906108c SS |
1083 | if (errnop != NULL) |
1084 | *errnop = errcode; | |
c906108c SS |
1085 | return nbytes_read; |
1086 | } | |
1087 | ||
07b82ea5 PA |
1088 | struct target_section_table * |
1089 | target_get_section_table (struct target_ops *target) | |
1090 | { | |
1091 | struct target_ops *t; | |
1092 | ||
1093 | if (targetdebug) | |
1094 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1095 | ||
1096 | for (t = target; t != NULL; t = t->beneath) | |
1097 | if (t->to_get_section_table != NULL) | |
1098 | return (*t->to_get_section_table) (t); | |
1099 | ||
1100 | return NULL; | |
1101 | } | |
1102 | ||
8db32d44 | 1103 | /* Find a section containing ADDR. */ |
07b82ea5 | 1104 | |
0542c86d | 1105 | struct target_section * |
8db32d44 AC |
1106 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1107 | { | |
07b82ea5 | 1108 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1109 | struct target_section *secp; |
07b82ea5 PA |
1110 | |
1111 | if (table == NULL) | |
1112 | return NULL; | |
1113 | ||
1114 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1115 | { |
1116 | if (addr >= secp->addr && addr < secp->endaddr) | |
1117 | return secp; | |
1118 | } | |
1119 | return NULL; | |
1120 | } | |
1121 | ||
e6e4e701 PA |
1122 | /* Read memory from the live target, even if currently inspecting a |
1123 | traceframe. The return is the same as that of target_read. */ | |
1124 | ||
9b409511 | 1125 | static enum target_xfer_status |
e6e4e701 | 1126 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1127 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1128 | ULONGEST *xfered_len) | |
e6e4e701 | 1129 | { |
9b409511 | 1130 | enum target_xfer_status ret; |
e6e4e701 PA |
1131 | struct cleanup *cleanup; |
1132 | ||
1133 | /* Switch momentarily out of tfind mode so to access live memory. | |
1134 | Note that this must not clear global state, such as the frame | |
1135 | cache, which must still remain valid for the previous traceframe. | |
1136 | We may be _building_ the frame cache at this point. */ | |
1137 | cleanup = make_cleanup_restore_traceframe_number (); | |
1138 | set_traceframe_number (-1); | |
1139 | ||
9b409511 YQ |
1140 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1141 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1142 | |
1143 | do_cleanups (cleanup); | |
1144 | return ret; | |
1145 | } | |
1146 | ||
1147 | /* Using the set of read-only target sections of OPS, read live | |
1148 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1149 | top-most target again. |
1150 | ||
1151 | For interface/parameters/return description see target.h, | |
1152 | to_xfer_partial. */ | |
e6e4e701 | 1153 | |
9b409511 | 1154 | static enum target_xfer_status |
e6e4e701 PA |
1155 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1156 | enum target_object object, | |
1157 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1158 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1159 | { |
1160 | struct target_section *secp; | |
1161 | struct target_section_table *table; | |
1162 | ||
1163 | secp = target_section_by_addr (ops, memaddr); | |
1164 | if (secp != NULL | |
2b2848e2 DE |
1165 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1166 | secp->the_bfd_section) | |
e6e4e701 PA |
1167 | & SEC_READONLY)) |
1168 | { | |
1169 | struct target_section *p; | |
1170 | ULONGEST memend = memaddr + len; | |
1171 | ||
1172 | table = target_get_section_table (ops); | |
1173 | ||
1174 | for (p = table->sections; p < table->sections_end; p++) | |
1175 | { | |
1176 | if (memaddr >= p->addr) | |
1177 | { | |
1178 | if (memend <= p->endaddr) | |
1179 | { | |
1180 | /* Entire transfer is within this section. */ | |
1181 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1182 | readbuf, len, xfered_len); |
e6e4e701 PA |
1183 | } |
1184 | else if (memaddr >= p->endaddr) | |
1185 | { | |
1186 | /* This section ends before the transfer starts. */ | |
1187 | continue; | |
1188 | } | |
1189 | else | |
1190 | { | |
1191 | /* This section overlaps the transfer. Just do half. */ | |
1192 | len = p->endaddr - memaddr; | |
1193 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1194 | readbuf, len, xfered_len); |
e6e4e701 PA |
1195 | } |
1196 | } | |
1197 | } | |
1198 | } | |
1199 | ||
9b409511 | 1200 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1201 | } |
1202 | ||
9f713294 YQ |
1203 | /* Read memory from more than one valid target. A core file, for |
1204 | instance, could have some of memory but delegate other bits to | |
1205 | the target below it. So, we must manually try all targets. */ | |
1206 | ||
9b409511 | 1207 | static enum target_xfer_status |
17fde6d0 | 1208 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1209 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1210 | ULONGEST *xfered_len) | |
9f713294 | 1211 | { |
9b409511 | 1212 | enum target_xfer_status res; |
9f713294 YQ |
1213 | |
1214 | do | |
1215 | { | |
1216 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1217 | readbuf, writebuf, memaddr, len, |
1218 | xfered_len); | |
1219 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1220 | break; |
1221 | ||
633785ff MM |
1222 | /* Stop if the target reports that the memory is not available. */ |
1223 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1224 | break; | |
1225 | ||
9f713294 YQ |
1226 | /* We want to continue past core files to executables, but not |
1227 | past a running target's memory. */ | |
1228 | if (ops->to_has_all_memory (ops)) | |
1229 | break; | |
1230 | ||
1231 | ops = ops->beneath; | |
1232 | } | |
1233 | while (ops != NULL); | |
1234 | ||
1235 | return res; | |
1236 | } | |
1237 | ||
7f79c47e DE |
1238 | /* Perform a partial memory transfer. |
1239 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1240 | |
9b409511 | 1241 | static enum target_xfer_status |
f0ba3972 | 1242 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1243 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1244 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1245 | { |
9b409511 | 1246 | enum target_xfer_status res; |
cf7a04e8 DJ |
1247 | int reg_len; |
1248 | struct mem_region *region; | |
4e5d721f | 1249 | struct inferior *inf; |
cf7a04e8 | 1250 | |
07b82ea5 PA |
1251 | /* For accesses to unmapped overlay sections, read directly from |
1252 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1253 | if (readbuf != NULL && overlay_debugging) | |
1254 | { | |
1255 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1256 | |
07b82ea5 PA |
1257 | if (pc_in_unmapped_range (memaddr, section)) |
1258 | { | |
1259 | struct target_section_table *table | |
1260 | = target_get_section_table (ops); | |
1261 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1262 | |
07b82ea5 PA |
1263 | memaddr = overlay_mapped_address (memaddr, section); |
1264 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1265 | memaddr, len, xfered_len, |
07b82ea5 PA |
1266 | table->sections, |
1267 | table->sections_end, | |
1268 | section_name); | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1273 | if (readbuf != NULL && trust_readonly) |
1274 | { | |
0542c86d | 1275 | struct target_section *secp; |
07b82ea5 | 1276 | struct target_section_table *table; |
cf7a04e8 DJ |
1277 | |
1278 | secp = target_section_by_addr (ops, memaddr); | |
1279 | if (secp != NULL | |
2b2848e2 DE |
1280 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1281 | secp->the_bfd_section) | |
cf7a04e8 | 1282 | & SEC_READONLY)) |
07b82ea5 PA |
1283 | { |
1284 | table = target_get_section_table (ops); | |
1285 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1286 | memaddr, len, xfered_len, |
07b82ea5 PA |
1287 | table->sections, |
1288 | table->sections_end, | |
1289 | NULL); | |
1290 | } | |
98646950 UW |
1291 | } |
1292 | ||
e6e4e701 PA |
1293 | /* If reading unavailable memory in the context of traceframes, and |
1294 | this address falls within a read-only section, fallback to | |
1295 | reading from live memory. */ | |
1296 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1297 | { | |
1298 | VEC(mem_range_s) *available; | |
1299 | ||
1300 | /* If we fail to get the set of available memory, then the | |
1301 | target does not support querying traceframe info, and so we | |
1302 | attempt reading from the traceframe anyway (assuming the | |
1303 | target implements the old QTro packet then). */ | |
1304 | if (traceframe_available_memory (&available, memaddr, len)) | |
1305 | { | |
1306 | struct cleanup *old_chain; | |
1307 | ||
1308 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1309 | ||
1310 | if (VEC_empty (mem_range_s, available) | |
1311 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1312 | { | |
1313 | /* Don't read into the traceframe's available | |
1314 | memory. */ | |
1315 | if (!VEC_empty (mem_range_s, available)) | |
1316 | { | |
1317 | LONGEST oldlen = len; | |
1318 | ||
1319 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1320 | gdb_assert (len <= oldlen); | |
1321 | } | |
1322 | ||
1323 | do_cleanups (old_chain); | |
1324 | ||
1325 | /* This goes through the topmost target again. */ | |
1326 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1327 | readbuf, memaddr, |
1328 | len, xfered_len); | |
1329 | if (res == TARGET_XFER_OK) | |
1330 | return TARGET_XFER_OK; | |
1331 | else | |
1332 | { | |
1333 | /* No use trying further, we know some memory starting | |
1334 | at MEMADDR isn't available. */ | |
1335 | *xfered_len = len; | |
1336 | return TARGET_XFER_E_UNAVAILABLE; | |
1337 | } | |
e6e4e701 PA |
1338 | } |
1339 | ||
1340 | /* Don't try to read more than how much is available, in | |
1341 | case the target implements the deprecated QTro packet to | |
1342 | cater for older GDBs (the target's knowledge of read-only | |
1343 | sections may be outdated by now). */ | |
1344 | len = VEC_index (mem_range_s, available, 0)->length; | |
1345 | ||
1346 | do_cleanups (old_chain); | |
1347 | } | |
1348 | } | |
1349 | ||
cf7a04e8 DJ |
1350 | /* Try GDB's internal data cache. */ |
1351 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1352 | /* region->hi == 0 means there's no upper bound. */ |
1353 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1354 | reg_len = len; |
1355 | else | |
1356 | reg_len = region->hi - memaddr; | |
1357 | ||
1358 | switch (region->attrib.mode) | |
1359 | { | |
1360 | case MEM_RO: | |
1361 | if (writebuf != NULL) | |
2ed4b548 | 1362 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1363 | break; |
1364 | ||
1365 | case MEM_WO: | |
1366 | if (readbuf != NULL) | |
2ed4b548 | 1367 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1368 | break; |
a76d924d DJ |
1369 | |
1370 | case MEM_FLASH: | |
1371 | /* We only support writing to flash during "load" for now. */ | |
1372 | if (writebuf != NULL) | |
1373 | error (_("Writing to flash memory forbidden in this context")); | |
1374 | break; | |
4b5752d0 VP |
1375 | |
1376 | case MEM_NONE: | |
2ed4b548 | 1377 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1378 | } |
1379 | ||
6c95b8df PA |
1380 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1381 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1382 | else | |
1383 | inf = NULL; | |
4e5d721f DE |
1384 | |
1385 | if (inf != NULL | |
2f4d8875 PA |
1386 | /* The dcache reads whole cache lines; that doesn't play well |
1387 | with reading from a trace buffer, because reading outside of | |
1388 | the collected memory range fails. */ | |
1389 | && get_traceframe_number () == -1 | |
4e5d721f | 1390 | && (region->attrib.cache |
29453a14 YQ |
1391 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1392 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1393 | { |
2a2f9fe4 | 1394 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1395 | int l; |
2a2f9fe4 | 1396 | |
cf7a04e8 | 1397 | if (readbuf != NULL) |
9b409511 | 1398 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1399 | else |
1400 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1401 | correctness dcache_xfer_memory should take readbuf and | |
1402 | writebuf. */ | |
9b409511 | 1403 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1404 | reg_len, 1); |
9b409511 YQ |
1405 | if (l <= 0) |
1406 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1407 | else |
9b409511 YQ |
1408 | { |
1409 | *xfered_len = (ULONGEST) l; | |
1410 | return TARGET_XFER_OK; | |
1411 | } | |
cf7a04e8 DJ |
1412 | } |
1413 | ||
1414 | /* If none of those methods found the memory we wanted, fall back | |
1415 | to a target partial transfer. Normally a single call to | |
1416 | to_xfer_partial is enough; if it doesn't recognize an object | |
1417 | it will call the to_xfer_partial of the next target down. | |
1418 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1419 | object which can be read from more than one valid target. |
1420 | A core file, for instance, could have some of memory but | |
1421 | delegate other bits to the target below it. So, we must | |
1422 | manually try all targets. */ | |
1423 | ||
1424 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1425 | xfered_len); | |
cf7a04e8 | 1426 | |
41dcd03f DE |
1427 | /* Make sure the cache gets updated no matter what - if we are writing |
1428 | to the stack. Even if this write is not tagged as such, we still need | |
1429 | to update the cache. */ | |
1430 | ||
9b409511 | 1431 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1432 | && inf != NULL |
1433 | && writebuf != NULL | |
f2de9785 | 1434 | && target_dcache_init_p () |
41dcd03f | 1435 | && !region->attrib.cache |
29453a14 YQ |
1436 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1437 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1438 | { |
f2de9785 | 1439 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1440 | |
9b409511 | 1441 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1442 | } |
1443 | ||
cf7a04e8 DJ |
1444 | /* If we still haven't got anything, return the last error. We |
1445 | give up. */ | |
1446 | return res; | |
0779438d AC |
1447 | } |
1448 | ||
f0ba3972 PA |
1449 | /* Perform a partial memory transfer. For docs see target.h, |
1450 | to_xfer_partial. */ | |
1451 | ||
9b409511 | 1452 | static enum target_xfer_status |
f0ba3972 | 1453 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1454 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1455 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1456 | { |
9b409511 | 1457 | enum target_xfer_status res; |
f0ba3972 PA |
1458 | |
1459 | /* Zero length requests are ok and require no work. */ | |
1460 | if (len == 0) | |
9b409511 | 1461 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1462 | |
1463 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1464 | breakpoint insns, thus hiding out from higher layers whether | |
1465 | there are software breakpoints inserted in the code stream. */ | |
1466 | if (readbuf != NULL) | |
1467 | { | |
9b409511 YQ |
1468 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1469 | xfered_len); | |
f0ba3972 | 1470 | |
9b409511 | 1471 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1472 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1473 | } | |
1474 | else | |
1475 | { | |
1476 | void *buf; | |
1477 | struct cleanup *old_chain; | |
1478 | ||
67c059c2 AB |
1479 | /* A large write request is likely to be partially satisfied |
1480 | by memory_xfer_partial_1. We will continually malloc | |
1481 | and free a copy of the entire write request for breakpoint | |
1482 | shadow handling even though we only end up writing a small | |
1483 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1484 | len = min (4096, len); | |
1485 | ||
f0ba3972 PA |
1486 | buf = xmalloc (len); |
1487 | old_chain = make_cleanup (xfree, buf); | |
1488 | memcpy (buf, writebuf, len); | |
1489 | ||
1490 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1491 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1492 | xfered_len); | |
f0ba3972 PA |
1493 | |
1494 | do_cleanups (old_chain); | |
1495 | } | |
1496 | ||
1497 | return res; | |
1498 | } | |
1499 | ||
8defab1a DJ |
1500 | static void |
1501 | restore_show_memory_breakpoints (void *arg) | |
1502 | { | |
1503 | show_memory_breakpoints = (uintptr_t) arg; | |
1504 | } | |
1505 | ||
1506 | struct cleanup * | |
1507 | make_show_memory_breakpoints_cleanup (int show) | |
1508 | { | |
1509 | int current = show_memory_breakpoints; | |
8defab1a | 1510 | |
5d502164 | 1511 | show_memory_breakpoints = show; |
8defab1a DJ |
1512 | return make_cleanup (restore_show_memory_breakpoints, |
1513 | (void *) (uintptr_t) current); | |
1514 | } | |
1515 | ||
7f79c47e DE |
1516 | /* For docs see target.h, to_xfer_partial. */ |
1517 | ||
9b409511 | 1518 | enum target_xfer_status |
27394598 AC |
1519 | target_xfer_partial (struct target_ops *ops, |
1520 | enum target_object object, const char *annex, | |
4ac248ca | 1521 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1522 | ULONGEST offset, ULONGEST len, |
1523 | ULONGEST *xfered_len) | |
27394598 | 1524 | { |
9b409511 | 1525 | enum target_xfer_status retval; |
27394598 AC |
1526 | |
1527 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1528 | |
ce6d0892 YQ |
1529 | /* Transfer is done when LEN is zero. */ |
1530 | if (len == 0) | |
9b409511 | 1531 | return TARGET_XFER_EOF; |
ce6d0892 | 1532 | |
d914c394 SS |
1533 | if (writebuf && !may_write_memory) |
1534 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1535 | core_addr_to_string_nz (offset), plongest (len)); | |
1536 | ||
9b409511 YQ |
1537 | *xfered_len = 0; |
1538 | ||
cf7a04e8 DJ |
1539 | /* If this is a memory transfer, let the memory-specific code |
1540 | have a look at it instead. Memory transfers are more | |
1541 | complicated. */ | |
29453a14 YQ |
1542 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1543 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1544 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1545 | writebuf, offset, len, xfered_len); |
9f713294 | 1546 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1547 | { |
9f713294 | 1548 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1549 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1550 | xfered_len); | |
cf7a04e8 | 1551 | } |
9f713294 YQ |
1552 | else |
1553 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1554 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1555 | |
27394598 AC |
1556 | if (targetdebug) |
1557 | { | |
1558 | const unsigned char *myaddr = NULL; | |
1559 | ||
1560 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1561 | "%s:target_xfer_partial " |
9b409511 | 1562 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1563 | ops->to_shortname, |
1564 | (int) object, | |
1565 | (annex ? annex : "(null)"), | |
53b71562 JB |
1566 | host_address_to_string (readbuf), |
1567 | host_address_to_string (writebuf), | |
0b1553bc | 1568 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1569 | pulongest (len), retval, |
1570 | pulongest (*xfered_len)); | |
27394598 AC |
1571 | |
1572 | if (readbuf) | |
1573 | myaddr = readbuf; | |
1574 | if (writebuf) | |
1575 | myaddr = writebuf; | |
9b409511 | 1576 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1577 | { |
1578 | int i; | |
2bc416ba | 1579 | |
27394598 | 1580 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1581 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1582 | { |
53b71562 | 1583 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1584 | { |
1585 | if (targetdebug < 2 && i > 0) | |
1586 | { | |
1587 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1588 | break; | |
1589 | } | |
1590 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1591 | } | |
2bc416ba | 1592 | |
27394598 AC |
1593 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1594 | } | |
1595 | } | |
2bc416ba | 1596 | |
27394598 AC |
1597 | fputc_unfiltered ('\n', gdb_stdlog); |
1598 | } | |
9b409511 YQ |
1599 | |
1600 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1601 | properly. Do assertion after printing debug messages, so that we | |
1602 | can find more clues on assertion failure from debugging messages. */ | |
1603 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1604 | gdb_assert (*xfered_len > 0); | |
1605 | ||
27394598 AC |
1606 | return retval; |
1607 | } | |
1608 | ||
578d3588 PA |
1609 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1610 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1611 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1612 | |
1613 | If an error occurs, no guarantee is made about the contents of the data at | |
1614 | MYADDR. In particular, the caller should not depend upon partial reads | |
1615 | filling the buffer with good data. There is no way for the caller to know | |
1616 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1617 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1618 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1619 | |
1620 | int | |
1b162304 | 1621 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1622 | { |
c35b1492 PA |
1623 | /* Dispatch to the topmost target, not the flattened current_target. |
1624 | Memory accesses check target->to_has_(all_)memory, and the | |
1625 | flattened target doesn't inherit those. */ | |
1626 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1627 | myaddr, memaddr, len) == len) |
1628 | return 0; | |
0779438d | 1629 | else |
578d3588 | 1630 | return TARGET_XFER_E_IO; |
c906108c SS |
1631 | } |
1632 | ||
aee4bf85 PA |
1633 | /* Like target_read_memory, but specify explicitly that this is a read |
1634 | from the target's raw memory. That is, this read bypasses the | |
1635 | dcache, breakpoint shadowing, etc. */ | |
1636 | ||
1637 | int | |
1638 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1639 | { | |
1640 | /* See comment in target_read_memory about why the request starts at | |
1641 | current_target.beneath. */ | |
1642 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1643 | myaddr, memaddr, len) == len) | |
1644 | return 0; | |
1645 | else | |
1646 | return TARGET_XFER_E_IO; | |
1647 | } | |
1648 | ||
4e5d721f DE |
1649 | /* Like target_read_memory, but specify explicitly that this is a read from |
1650 | the target's stack. This may trigger different cache behavior. */ | |
1651 | ||
1652 | int | |
45aa4659 | 1653 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1654 | { |
aee4bf85 PA |
1655 | /* See comment in target_read_memory about why the request starts at |
1656 | current_target.beneath. */ | |
4e5d721f DE |
1657 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1658 | myaddr, memaddr, len) == len) | |
1659 | return 0; | |
1660 | else | |
578d3588 | 1661 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1662 | } |
1663 | ||
29453a14 YQ |
1664 | /* Like target_read_memory, but specify explicitly that this is a read from |
1665 | the target's code. This may trigger different cache behavior. */ | |
1666 | ||
1667 | int | |
1668 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1669 | { | |
aee4bf85 PA |
1670 | /* See comment in target_read_memory about why the request starts at |
1671 | current_target.beneath. */ | |
29453a14 YQ |
1672 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1673 | myaddr, memaddr, len) == len) | |
1674 | return 0; | |
1675 | else | |
1676 | return TARGET_XFER_E_IO; | |
1677 | } | |
1678 | ||
7f79c47e | 1679 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1680 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1681 | error occurs. If an error occurs, no guarantee is made about how |
1682 | much data got written. Callers that can deal with partial writes | |
1683 | should call target_write. */ | |
7f79c47e | 1684 | |
c906108c | 1685 | int |
45aa4659 | 1686 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1687 | { |
aee4bf85 PA |
1688 | /* See comment in target_read_memory about why the request starts at |
1689 | current_target.beneath. */ | |
c35b1492 | 1690 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1691 | myaddr, memaddr, len) == len) |
1692 | return 0; | |
0779438d | 1693 | else |
578d3588 | 1694 | return TARGET_XFER_E_IO; |
c906108c | 1695 | } |
c5aa993b | 1696 | |
f0ba3972 | 1697 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1698 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1699 | if any error occurs. If an error occurs, no guarantee is made |
1700 | about how much data got written. Callers that can deal with | |
1701 | partial writes should call target_write. */ | |
f0ba3972 PA |
1702 | |
1703 | int | |
45aa4659 | 1704 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1705 | { |
aee4bf85 PA |
1706 | /* See comment in target_read_memory about why the request starts at |
1707 | current_target.beneath. */ | |
f0ba3972 PA |
1708 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1709 | myaddr, memaddr, len) == len) | |
1710 | return 0; | |
1711 | else | |
578d3588 | 1712 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1713 | } |
1714 | ||
fd79ecee DJ |
1715 | /* Fetch the target's memory map. */ |
1716 | ||
1717 | VEC(mem_region_s) * | |
1718 | target_memory_map (void) | |
1719 | { | |
1720 | VEC(mem_region_s) *result; | |
1721 | struct mem_region *last_one, *this_one; | |
1722 | int ix; | |
1723 | struct target_ops *t; | |
1724 | ||
1725 | if (targetdebug) | |
1726 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1727 | ||
1728 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1729 | if (t->to_memory_map != NULL) | |
1730 | break; | |
1731 | ||
1732 | if (t == NULL) | |
1733 | return NULL; | |
1734 | ||
1735 | result = t->to_memory_map (t); | |
1736 | if (result == NULL) | |
1737 | return NULL; | |
1738 | ||
1739 | qsort (VEC_address (mem_region_s, result), | |
1740 | VEC_length (mem_region_s, result), | |
1741 | sizeof (struct mem_region), mem_region_cmp); | |
1742 | ||
1743 | /* Check that regions do not overlap. Simultaneously assign | |
1744 | a numbering for the "mem" commands to use to refer to | |
1745 | each region. */ | |
1746 | last_one = NULL; | |
1747 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1748 | { | |
1749 | this_one->number = ix; | |
1750 | ||
1751 | if (last_one && last_one->hi > this_one->lo) | |
1752 | { | |
1753 | warning (_("Overlapping regions in memory map: ignoring")); | |
1754 | VEC_free (mem_region_s, result); | |
1755 | return NULL; | |
1756 | } | |
1757 | last_one = this_one; | |
1758 | } | |
1759 | ||
1760 | return result; | |
1761 | } | |
1762 | ||
a76d924d DJ |
1763 | void |
1764 | target_flash_erase (ULONGEST address, LONGEST length) | |
1765 | { | |
1766 | struct target_ops *t; | |
1767 | ||
1768 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1769 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1770 | { |
1771 | if (targetdebug) | |
1772 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1773 | hex_string (address), phex (length, 0)); | |
1774 | t->to_flash_erase (t, address, length); | |
1775 | return; | |
1776 | } | |
a76d924d DJ |
1777 | |
1778 | tcomplain (); | |
1779 | } | |
1780 | ||
1781 | void | |
1782 | target_flash_done (void) | |
1783 | { | |
1784 | struct target_ops *t; | |
1785 | ||
1786 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1787 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1788 | { |
1789 | if (targetdebug) | |
1790 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1791 | t->to_flash_done (t); | |
1792 | return; | |
1793 | } | |
a76d924d DJ |
1794 | |
1795 | tcomplain (); | |
1796 | } | |
1797 | ||
920d2a44 AC |
1798 | static void |
1799 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1800 | struct cmd_list_element *c, const char *value) | |
1801 | { | |
3e43a32a MS |
1802 | fprintf_filtered (file, |
1803 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1804 | value); |
1805 | } | |
3a11626d | 1806 | |
1e3ff5ad AC |
1807 | /* More generic transfers. */ |
1808 | ||
9b409511 | 1809 | static enum target_xfer_status |
8aa91c1e | 1810 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1811 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
1812 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
1813 | ULONGEST *xfered_len) | |
0088c768 AC |
1814 | { |
1815 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1816 | && ops->deprecated_xfer_memory != NULL) |
1817 | /* If available, fall back to the target's | |
1818 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1819 | { |
4b8a223f | 1820 | int xfered = -1; |
5d502164 | 1821 | |
0088c768 | 1822 | errno = 0; |
4b8a223f AC |
1823 | if (writebuf != NULL) |
1824 | { | |
1825 | void *buffer = xmalloc (len); | |
1826 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1827 | |
4b8a223f | 1828 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1829 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1830 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1831 | do_cleanups (cleanup); |
1832 | } | |
1833 | if (readbuf != NULL) | |
244e85c8 MS |
1834 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1835 | 0/*read*/, NULL, ops); | |
0088c768 | 1836 | if (xfered > 0) |
9b409511 YQ |
1837 | { |
1838 | *xfered_len = (ULONGEST) xfered; | |
1839 | return TARGET_XFER_E_IO; | |
1840 | } | |
0088c768 | 1841 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
1842 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1843 | ERRNO as one indication of an error. */ | |
9b409511 | 1844 | return TARGET_XFER_EOF; |
0088c768 | 1845 | else |
9b409511 | 1846 | return TARGET_XFER_E_IO; |
0088c768 | 1847 | } |
0088c768 | 1848 | else |
6b84065d TT |
1849 | { |
1850 | gdb_assert (ops->beneath != NULL); | |
1851 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1852 | readbuf, writebuf, offset, len, | |
1853 | xfered_len); | |
1854 | } | |
0088c768 AC |
1855 | } |
1856 | ||
7f79c47e | 1857 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1858 | |
9b409511 | 1859 | static enum target_xfer_status |
1e3ff5ad AC |
1860 | target_read_partial (struct target_ops *ops, |
1861 | enum target_object object, | |
1b0ba102 | 1862 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1863 | ULONGEST offset, ULONGEST len, |
1864 | ULONGEST *xfered_len) | |
1e3ff5ad | 1865 | { |
9b409511 YQ |
1866 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1867 | xfered_len); | |
1e3ff5ad AC |
1868 | } |
1869 | ||
8a55ffb0 | 1870 | static enum target_xfer_status |
1e3ff5ad AC |
1871 | target_write_partial (struct target_ops *ops, |
1872 | enum target_object object, | |
1b0ba102 | 1873 | const char *annex, const gdb_byte *buf, |
9b409511 | 1874 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1875 | { |
9b409511 YQ |
1876 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1877 | xfered_len); | |
1e3ff5ad AC |
1878 | } |
1879 | ||
1880 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1881 | |
1882 | /* For docs on target_read see target.h. */ | |
1883 | ||
1e3ff5ad AC |
1884 | LONGEST |
1885 | target_read (struct target_ops *ops, | |
1886 | enum target_object object, | |
1b0ba102 | 1887 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1888 | ULONGEST offset, LONGEST len) |
1889 | { | |
1890 | LONGEST xfered = 0; | |
5d502164 | 1891 | |
1e3ff5ad AC |
1892 | while (xfered < len) |
1893 | { | |
9b409511 YQ |
1894 | ULONGEST xfered_len; |
1895 | enum target_xfer_status status; | |
1896 | ||
1897 | status = target_read_partial (ops, object, annex, | |
1898 | (gdb_byte *) buf + xfered, | |
1899 | offset + xfered, len - xfered, | |
1900 | &xfered_len); | |
5d502164 | 1901 | |
1e3ff5ad | 1902 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1903 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1904 | return xfered; |
9b409511 YQ |
1905 | else if (status == TARGET_XFER_OK) |
1906 | { | |
1907 | xfered += xfered_len; | |
1908 | QUIT; | |
1909 | } | |
1910 | else | |
0088c768 | 1911 | return -1; |
9b409511 | 1912 | |
1e3ff5ad AC |
1913 | } |
1914 | return len; | |
1915 | } | |
1916 | ||
f1a507a1 JB |
1917 | /* Assuming that the entire [begin, end) range of memory cannot be |
1918 | read, try to read whatever subrange is possible to read. | |
1919 | ||
1920 | The function returns, in RESULT, either zero or one memory block. | |
1921 | If there's a readable subrange at the beginning, it is completely | |
1922 | read and returned. Any further readable subrange will not be read. | |
1923 | Otherwise, if there's a readable subrange at the end, it will be | |
1924 | completely read and returned. Any readable subranges before it | |
1925 | (obviously, not starting at the beginning), will be ignored. In | |
1926 | other cases -- either no readable subrange, or readable subrange(s) | |
1927 | that is neither at the beginning, or end, nothing is returned. | |
1928 | ||
1929 | The purpose of this function is to handle a read across a boundary | |
1930 | of accessible memory in a case when memory map is not available. | |
1931 | The above restrictions are fine for this case, but will give | |
1932 | incorrect results if the memory is 'patchy'. However, supporting | |
1933 | 'patchy' memory would require trying to read every single byte, | |
1934 | and it seems unacceptable solution. Explicit memory map is | |
1935 | recommended for this case -- and target_read_memory_robust will | |
1936 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1937 | |
1938 | static void | |
3e43a32a MS |
1939 | read_whatever_is_readable (struct target_ops *ops, |
1940 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1941 | VEC(memory_read_result_s) **result) |
d5086790 | 1942 | { |
f1a507a1 | 1943 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1944 | ULONGEST current_begin = begin; |
1945 | ULONGEST current_end = end; | |
1946 | int forward; | |
1947 | memory_read_result_s r; | |
9b409511 | 1948 | ULONGEST xfered_len; |
8dedea02 VP |
1949 | |
1950 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1951 | if (end - begin <= 1) | |
13b3fd9b MS |
1952 | { |
1953 | xfree (buf); | |
1954 | return; | |
1955 | } | |
8dedea02 VP |
1956 | |
1957 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1958 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1959 | at the boundary of accessible region. */ |
1960 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 1961 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1962 | { |
1963 | forward = 1; | |
1964 | ++current_begin; | |
1965 | } | |
1966 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1967 | buf + (end-begin) - 1, end - 1, 1, |
1968 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
1969 | { |
1970 | forward = 0; | |
1971 | --current_end; | |
1972 | } | |
1973 | else | |
1974 | { | |
13b3fd9b | 1975 | xfree (buf); |
8dedea02 VP |
1976 | return; |
1977 | } | |
1978 | ||
1979 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1980 | found to be not readable as a whole. | |
1981 | ||
1982 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1983 | so there's no point trying further. */ | |
1984 | while (current_end - current_begin > 1) | |
1985 | { | |
1986 | ULONGEST first_half_begin, first_half_end; | |
1987 | ULONGEST second_half_begin, second_half_end; | |
1988 | LONGEST xfer; | |
8dedea02 | 1989 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 1990 | |
8dedea02 VP |
1991 | if (forward) |
1992 | { | |
1993 | first_half_begin = current_begin; | |
1994 | first_half_end = middle; | |
1995 | second_half_begin = middle; | |
1996 | second_half_end = current_end; | |
1997 | } | |
1998 | else | |
1999 | { | |
2000 | first_half_begin = middle; | |
2001 | first_half_end = current_end; | |
2002 | second_half_begin = current_begin; | |
2003 | second_half_end = middle; | |
2004 | } | |
2005 | ||
2006 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2007 | buf + (first_half_begin - begin), | |
2008 | first_half_begin, | |
2009 | first_half_end - first_half_begin); | |
2010 | ||
2011 | if (xfer == first_half_end - first_half_begin) | |
2012 | { | |
c378eb4e | 2013 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2014 | other half. */ |
8dedea02 VP |
2015 | current_begin = second_half_begin; |
2016 | current_end = second_half_end; | |
2017 | } | |
2018 | else | |
2019 | { | |
c378eb4e MS |
2020 | /* This half is not readable. Because we've tried one byte, we |
2021 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2022 | iteration to divide again and try to read. |
2023 | ||
2024 | We don't handle the other half, because this function only tries | |
2025 | to read a single readable subrange. */ | |
2026 | current_begin = first_half_begin; | |
2027 | current_end = first_half_end; | |
2028 | } | |
2029 | } | |
2030 | ||
2031 | if (forward) | |
2032 | { | |
2033 | /* The [begin, current_begin) range has been read. */ | |
2034 | r.begin = begin; | |
2035 | r.end = current_begin; | |
2036 | r.data = buf; | |
2037 | } | |
2038 | else | |
2039 | { | |
2040 | /* The [current_end, end) range has been read. */ | |
2041 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2042 | |
8dedea02 VP |
2043 | r.data = xmalloc (rlen); |
2044 | memcpy (r.data, buf + current_end - begin, rlen); | |
2045 | r.begin = current_end; | |
2046 | r.end = end; | |
2047 | xfree (buf); | |
2048 | } | |
2049 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2050 | } | |
2051 | ||
2052 | void | |
2053 | free_memory_read_result_vector (void *x) | |
2054 | { | |
2055 | VEC(memory_read_result_s) *v = x; | |
2056 | memory_read_result_s *current; | |
2057 | int ix; | |
2058 | ||
2059 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2060 | { | |
2061 | xfree (current->data); | |
2062 | } | |
2063 | VEC_free (memory_read_result_s, v); | |
2064 | } | |
2065 | ||
2066 | VEC(memory_read_result_s) * | |
2067 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2068 | { | |
2069 | VEC(memory_read_result_s) *result = 0; | |
2070 | ||
2071 | LONGEST xfered = 0; | |
d5086790 VP |
2072 | while (xfered < len) |
2073 | { | |
8dedea02 VP |
2074 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2075 | LONGEST rlen; | |
5d502164 | 2076 | |
8dedea02 VP |
2077 | /* If there is no explicit region, a fake one should be created. */ |
2078 | gdb_assert (region); | |
2079 | ||
2080 | if (region->hi == 0) | |
2081 | rlen = len - xfered; | |
2082 | else | |
2083 | rlen = region->hi - offset; | |
2084 | ||
2085 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2086 | { |
c378eb4e | 2087 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2088 | if the region is explicitly marked inaccessible, or |
2089 | 'inaccessible-by-default' is in effect. */ | |
2090 | xfered += rlen; | |
2091 | } | |
2092 | else | |
2093 | { | |
2094 | LONGEST to_read = min (len - xfered, rlen); | |
2095 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2096 | ||
2097 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2098 | (gdb_byte *) buffer, | |
2099 | offset + xfered, to_read); | |
2100 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2101 | if (xfer <= 0) |
d5086790 | 2102 | { |
c378eb4e | 2103 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2104 | some subrange. */ |
2105 | xfree (buffer); | |
3e43a32a MS |
2106 | read_whatever_is_readable (ops, offset + xfered, |
2107 | offset + xfered + to_read, &result); | |
8dedea02 | 2108 | xfered += to_read; |
d5086790 | 2109 | } |
8dedea02 VP |
2110 | else |
2111 | { | |
2112 | struct memory_read_result r; | |
2113 | r.data = buffer; | |
2114 | r.begin = offset + xfered; | |
2115 | r.end = r.begin + xfer; | |
2116 | VEC_safe_push (memory_read_result_s, result, &r); | |
2117 | xfered += xfer; | |
2118 | } | |
2119 | QUIT; | |
d5086790 | 2120 | } |
d5086790 | 2121 | } |
8dedea02 | 2122 | return result; |
d5086790 VP |
2123 | } |
2124 | ||
8dedea02 | 2125 | |
cf7a04e8 DJ |
2126 | /* An alternative to target_write with progress callbacks. */ |
2127 | ||
1e3ff5ad | 2128 | LONGEST |
cf7a04e8 DJ |
2129 | target_write_with_progress (struct target_ops *ops, |
2130 | enum target_object object, | |
2131 | const char *annex, const gdb_byte *buf, | |
2132 | ULONGEST offset, LONGEST len, | |
2133 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2134 | { |
2135 | LONGEST xfered = 0; | |
a76d924d DJ |
2136 | |
2137 | /* Give the progress callback a chance to set up. */ | |
2138 | if (progress) | |
2139 | (*progress) (0, baton); | |
2140 | ||
1e3ff5ad AC |
2141 | while (xfered < len) |
2142 | { | |
9b409511 YQ |
2143 | ULONGEST xfered_len; |
2144 | enum target_xfer_status status; | |
2145 | ||
2146 | status = target_write_partial (ops, object, annex, | |
2147 | (gdb_byte *) buf + xfered, | |
2148 | offset + xfered, len - xfered, | |
2149 | &xfered_len); | |
cf7a04e8 | 2150 | |
9b409511 | 2151 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2152 | return xfered; |
9b409511 | 2153 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2154 | return -1; |
cf7a04e8 | 2155 | |
9b409511 | 2156 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2157 | if (progress) |
9b409511 | 2158 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2159 | |
9b409511 | 2160 | xfered += xfered_len; |
1e3ff5ad AC |
2161 | QUIT; |
2162 | } | |
2163 | return len; | |
2164 | } | |
2165 | ||
7f79c47e DE |
2166 | /* For docs on target_write see target.h. */ |
2167 | ||
cf7a04e8 DJ |
2168 | LONGEST |
2169 | target_write (struct target_ops *ops, | |
2170 | enum target_object object, | |
2171 | const char *annex, const gdb_byte *buf, | |
2172 | ULONGEST offset, LONGEST len) | |
2173 | { | |
2174 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2175 | NULL, NULL); | |
2176 | } | |
2177 | ||
159f81f3 DJ |
2178 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2179 | the size of the transferred data. PADDING additional bytes are | |
2180 | available in *BUF_P. This is a helper function for | |
2181 | target_read_alloc; see the declaration of that function for more | |
2182 | information. */ | |
13547ab6 | 2183 | |
159f81f3 DJ |
2184 | static LONGEST |
2185 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2186 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2187 | { |
2188 | size_t buf_alloc, buf_pos; | |
2189 | gdb_byte *buf; | |
13547ab6 DJ |
2190 | |
2191 | /* This function does not have a length parameter; it reads the | |
2192 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2193 | from one target and partly from another (in a different stratum, | |
2194 | e.g. a core file and an executable). Both reasons make it | |
2195 | unsuitable for reading memory. */ | |
2196 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2197 | ||
2198 | /* Start by reading up to 4K at a time. The target will throttle | |
2199 | this number down if necessary. */ | |
2200 | buf_alloc = 4096; | |
2201 | buf = xmalloc (buf_alloc); | |
2202 | buf_pos = 0; | |
2203 | while (1) | |
2204 | { | |
9b409511 YQ |
2205 | ULONGEST xfered_len; |
2206 | enum target_xfer_status status; | |
2207 | ||
2208 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2209 | buf_pos, buf_alloc - buf_pos - padding, | |
2210 | &xfered_len); | |
2211 | ||
2212 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2213 | { |
2214 | /* Read all there was. */ | |
2215 | if (buf_pos == 0) | |
2216 | xfree (buf); | |
2217 | else | |
2218 | *buf_p = buf; | |
2219 | return buf_pos; | |
2220 | } | |
9b409511 YQ |
2221 | else if (status != TARGET_XFER_OK) |
2222 | { | |
2223 | /* An error occurred. */ | |
2224 | xfree (buf); | |
2225 | return TARGET_XFER_E_IO; | |
2226 | } | |
13547ab6 | 2227 | |
9b409511 | 2228 | buf_pos += xfered_len; |
13547ab6 DJ |
2229 | |
2230 | /* If the buffer is filling up, expand it. */ | |
2231 | if (buf_alloc < buf_pos * 2) | |
2232 | { | |
2233 | buf_alloc *= 2; | |
2234 | buf = xrealloc (buf, buf_alloc); | |
2235 | } | |
2236 | ||
2237 | QUIT; | |
2238 | } | |
2239 | } | |
2240 | ||
159f81f3 DJ |
2241 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2242 | the size of the transferred data. See the declaration in "target.h" | |
2243 | function for more information about the return value. */ | |
2244 | ||
2245 | LONGEST | |
2246 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2247 | const char *annex, gdb_byte **buf_p) | |
2248 | { | |
2249 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2250 | } | |
2251 | ||
2252 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2253 | returned as a string, allocated using xmalloc. If an error occurs | |
2254 | or the transfer is unsupported, NULL is returned. Empty objects | |
2255 | are returned as allocated but empty strings. A warning is issued | |
2256 | if the result contains any embedded NUL bytes. */ | |
2257 | ||
2258 | char * | |
2259 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2260 | const char *annex) | |
2261 | { | |
39086a0e PA |
2262 | gdb_byte *buffer; |
2263 | char *bufstr; | |
7313baad | 2264 | LONGEST i, transferred; |
159f81f3 | 2265 | |
39086a0e PA |
2266 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2267 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2268 | |
2269 | if (transferred < 0) | |
2270 | return NULL; | |
2271 | ||
2272 | if (transferred == 0) | |
2273 | return xstrdup (""); | |
2274 | ||
39086a0e | 2275 | bufstr[transferred] = 0; |
7313baad UW |
2276 | |
2277 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2278 | for (i = strlen (bufstr); i < transferred; i++) |
2279 | if (bufstr[i] != 0) | |
7313baad UW |
2280 | { |
2281 | warning (_("target object %d, annex %s, " | |
2282 | "contained unexpected null characters"), | |
2283 | (int) object, annex ? annex : "(none)"); | |
2284 | break; | |
2285 | } | |
159f81f3 | 2286 | |
39086a0e | 2287 | return bufstr; |
159f81f3 DJ |
2288 | } |
2289 | ||
b6591e8b AC |
2290 | /* Memory transfer methods. */ |
2291 | ||
2292 | void | |
1b0ba102 | 2293 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2294 | LONGEST len) |
2295 | { | |
07b82ea5 PA |
2296 | /* This method is used to read from an alternate, non-current |
2297 | target. This read must bypass the overlay support (as symbols | |
2298 | don't match this target), and GDB's internal cache (wrong cache | |
2299 | for this target). */ | |
2300 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2301 | != len) |
578d3588 | 2302 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2303 | } |
2304 | ||
2305 | ULONGEST | |
5d502164 MS |
2306 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2307 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2308 | { |
f6519ebc | 2309 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2310 | |
2311 | gdb_assert (len <= sizeof (buf)); | |
2312 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2313 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2314 | } |
2315 | ||
3db08215 MM |
2316 | /* See target.h. */ |
2317 | ||
d914c394 SS |
2318 | int |
2319 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2320 | struct bp_target_info *bp_tgt) | |
2321 | { | |
2322 | if (!may_insert_breakpoints) | |
2323 | { | |
2324 | warning (_("May not insert breakpoints")); | |
2325 | return 1; | |
2326 | } | |
2327 | ||
6b84065d TT |
2328 | return current_target.to_insert_breakpoint (¤t_target, |
2329 | gdbarch, bp_tgt); | |
d914c394 SS |
2330 | } |
2331 | ||
3db08215 MM |
2332 | /* See target.h. */ |
2333 | ||
d914c394 | 2334 | int |
6b84065d TT |
2335 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2336 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2337 | { |
2338 | /* This is kind of a weird case to handle, but the permission might | |
2339 | have been changed after breakpoints were inserted - in which case | |
2340 | we should just take the user literally and assume that any | |
2341 | breakpoints should be left in place. */ | |
2342 | if (!may_insert_breakpoints) | |
2343 | { | |
2344 | warning (_("May not remove breakpoints")); | |
2345 | return 1; | |
2346 | } | |
2347 | ||
6b84065d TT |
2348 | return current_target.to_remove_breakpoint (¤t_target, |
2349 | gdbarch, bp_tgt); | |
d914c394 SS |
2350 | } |
2351 | ||
c906108c | 2352 | static void |
fba45db2 | 2353 | target_info (char *args, int from_tty) |
c906108c SS |
2354 | { |
2355 | struct target_ops *t; | |
c906108c | 2356 | int has_all_mem = 0; |
c5aa993b | 2357 | |
c906108c | 2358 | if (symfile_objfile != NULL) |
4262abfb JK |
2359 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2360 | objfile_name (symfile_objfile)); | |
c906108c | 2361 | |
258b763a | 2362 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2363 | { |
c35b1492 | 2364 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2365 | continue; |
2366 | ||
c5aa993b | 2367 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2368 | continue; |
2369 | if (has_all_mem) | |
3e43a32a MS |
2370 | printf_unfiltered (_("\tWhile running this, " |
2371 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2372 | printf_unfiltered ("%s:\n", t->to_longname); |
2373 | (t->to_files_info) (t); | |
c35b1492 | 2374 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2375 | } |
2376 | } | |
2377 | ||
fd79ecee DJ |
2378 | /* This function is called before any new inferior is created, e.g. |
2379 | by running a program, attaching, or connecting to a target. | |
2380 | It cleans up any state from previous invocations which might | |
2381 | change between runs. This is a subset of what target_preopen | |
2382 | resets (things which might change between targets). */ | |
2383 | ||
2384 | void | |
2385 | target_pre_inferior (int from_tty) | |
2386 | { | |
c378eb4e | 2387 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2388 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2389 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2390 | to reproduce: |
2391 | ||
2392 | bash$ ./foo& | |
2393 | [1] 4711 | |
2394 | bash$ ./foo& | |
2395 | [1] 4712 | |
2396 | bash$ gdb ./foo | |
2397 | [...] | |
2398 | (gdb) attach 4711 | |
2399 | (gdb) detach | |
2400 | (gdb) attach 4712 | |
2401 | Cannot access memory at address 0xdeadbeef | |
2402 | */ | |
b9db4ced | 2403 | |
50c71eaf PA |
2404 | /* In some OSs, the shared library list is the same/global/shared |
2405 | across inferiors. If code is shared between processes, so are | |
2406 | memory regions and features. */ | |
f5656ead | 2407 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2408 | { |
2409 | no_shared_libraries (NULL, from_tty); | |
2410 | ||
2411 | invalidate_target_mem_regions (); | |
424163ea | 2412 | |
50c71eaf PA |
2413 | target_clear_description (); |
2414 | } | |
8ffcbaaf YQ |
2415 | |
2416 | agent_capability_invalidate (); | |
fd79ecee DJ |
2417 | } |
2418 | ||
b8fa0bfa PA |
2419 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2420 | inferior. */ | |
2421 | ||
2422 | static int | |
2423 | dispose_inferior (struct inferior *inf, void *args) | |
2424 | { | |
2425 | struct thread_info *thread; | |
2426 | ||
2427 | thread = any_thread_of_process (inf->pid); | |
2428 | if (thread) | |
2429 | { | |
2430 | switch_to_thread (thread->ptid); | |
2431 | ||
2432 | /* Core inferiors actually should be detached, not killed. */ | |
2433 | if (target_has_execution) | |
2434 | target_kill (); | |
2435 | else | |
2436 | target_detach (NULL, 0); | |
2437 | } | |
2438 | ||
2439 | return 0; | |
2440 | } | |
2441 | ||
c906108c SS |
2442 | /* This is to be called by the open routine before it does |
2443 | anything. */ | |
2444 | ||
2445 | void | |
fba45db2 | 2446 | target_preopen (int from_tty) |
c906108c | 2447 | { |
c5aa993b | 2448 | dont_repeat (); |
c906108c | 2449 | |
b8fa0bfa | 2450 | if (have_inferiors ()) |
c5aa993b | 2451 | { |
adf40b2e | 2452 | if (!from_tty |
b8fa0bfa PA |
2453 | || !have_live_inferiors () |
2454 | || query (_("A program is being debugged already. Kill it? "))) | |
2455 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2456 | else |
8a3fe4f8 | 2457 | error (_("Program not killed.")); |
c906108c SS |
2458 | } |
2459 | ||
2460 | /* Calling target_kill may remove the target from the stack. But if | |
2461 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2462 | /* Leave the exec target, though. The user may be switching from a |
2463 | live process to a core of the same program. */ | |
460014f5 | 2464 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2465 | |
2466 | target_pre_inferior (from_tty); | |
c906108c SS |
2467 | } |
2468 | ||
2469 | /* Detach a target after doing deferred register stores. */ | |
2470 | ||
2471 | void | |
52554a0e | 2472 | target_detach (const char *args, int from_tty) |
c906108c | 2473 | { |
136d6dae VP |
2474 | struct target_ops* t; |
2475 | ||
f5656ead | 2476 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2477 | /* Don't remove global breakpoints here. They're removed on |
2478 | disconnection from the target. */ | |
2479 | ; | |
2480 | else | |
2481 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2482 | them before detaching. */ | |
dfd4cc63 | 2483 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2484 | |
24291992 PA |
2485 | prepare_for_detach (); |
2486 | ||
09da0d0a TT |
2487 | current_target.to_detach (¤t_target, args, from_tty); |
2488 | if (targetdebug) | |
2489 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2490 | args, from_tty); | |
c906108c SS |
2491 | } |
2492 | ||
6ad8ae5c DJ |
2493 | void |
2494 | target_disconnect (char *args, int from_tty) | |
2495 | { | |
597320e7 DJ |
2496 | struct target_ops *t; |
2497 | ||
50c71eaf PA |
2498 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2499 | are global across processes, we have to remove them before | |
2500 | disconnecting. */ | |
74960c60 VP |
2501 | remove_breakpoints (); |
2502 | ||
597320e7 DJ |
2503 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2504 | if (t->to_disconnect != NULL) | |
2505 | { | |
2506 | if (targetdebug) | |
2507 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2508 | args, from_tty); | |
2509 | t->to_disconnect (t, args, from_tty); | |
2510 | return; | |
2511 | } | |
2512 | ||
2513 | tcomplain (); | |
6ad8ae5c DJ |
2514 | } |
2515 | ||
117de6a9 | 2516 | ptid_t |
47608cb1 | 2517 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2518 | { |
2519 | struct target_ops *t; | |
6b84065d TT |
2520 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2521 | status, options); | |
117de6a9 | 2522 | |
6b84065d | 2523 | if (targetdebug) |
117de6a9 | 2524 | { |
6b84065d TT |
2525 | char *status_string; |
2526 | char *options_string; | |
117de6a9 | 2527 | |
6b84065d TT |
2528 | status_string = target_waitstatus_to_string (status); |
2529 | options_string = target_options_to_string (options); | |
2530 | fprintf_unfiltered (gdb_stdlog, | |
2531 | "target_wait (%d, status, options={%s})" | |
2532 | " = %d, %s\n", | |
2533 | ptid_get_pid (ptid), options_string, | |
2534 | ptid_get_pid (retval), status_string); | |
2535 | xfree (status_string); | |
2536 | xfree (options_string); | |
117de6a9 PA |
2537 | } |
2538 | ||
6b84065d | 2539 | return retval; |
117de6a9 PA |
2540 | } |
2541 | ||
2542 | char * | |
2543 | target_pid_to_str (ptid_t ptid) | |
2544 | { | |
770234d3 | 2545 | return (*current_target.to_pid_to_str) (¤t_target, ptid); |
117de6a9 PA |
2546 | } |
2547 | ||
4694da01 TT |
2548 | char * |
2549 | target_thread_name (struct thread_info *info) | |
2550 | { | |
825828fc | 2551 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2552 | } |
2553 | ||
e1ac3328 | 2554 | void |
2ea28649 | 2555 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2556 | { |
28439f5e PA |
2557 | struct target_ops *t; |
2558 | ||
4e5d721f | 2559 | target_dcache_invalidate (); |
28439f5e | 2560 | |
6b84065d TT |
2561 | current_target.to_resume (¤t_target, ptid, step, signal); |
2562 | if (targetdebug) | |
2563 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2564 | ptid_get_pid (ptid), | |
2565 | step ? "step" : "continue", | |
2566 | gdb_signal_to_name (signal)); | |
28439f5e | 2567 | |
6b84065d TT |
2568 | registers_changed_ptid (ptid); |
2569 | set_executing (ptid, 1); | |
2570 | set_running (ptid, 1); | |
2571 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2572 | } |
2455069d UW |
2573 | |
2574 | void | |
2575 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2576 | { | |
035cad7f | 2577 | if (targetdebug) |
2455069d | 2578 | { |
035cad7f | 2579 | int i; |
2455069d | 2580 | |
035cad7f TT |
2581 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", |
2582 | numsigs); | |
2455069d | 2583 | |
035cad7f TT |
2584 | for (i = 0; i < numsigs; i++) |
2585 | if (pass_signals[i]) | |
2586 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2587 | gdb_signal_to_name (i)); | |
2455069d | 2588 | |
035cad7f | 2589 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
2455069d | 2590 | } |
035cad7f TT |
2591 | |
2592 | (*current_target.to_pass_signals) (¤t_target, numsigs, pass_signals); | |
2455069d UW |
2593 | } |
2594 | ||
9b224c5e PA |
2595 | void |
2596 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2597 | { | |
7d4f8efa | 2598 | if (targetdebug) |
9b224c5e | 2599 | { |
7d4f8efa | 2600 | int i; |
9b224c5e | 2601 | |
7d4f8efa TT |
2602 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", |
2603 | numsigs); | |
9b224c5e | 2604 | |
7d4f8efa TT |
2605 | for (i = 0; i < numsigs; i++) |
2606 | if (program_signals[i]) | |
2607 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2608 | gdb_signal_to_name (i)); | |
9b224c5e | 2609 | |
7d4f8efa | 2610 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
9b224c5e | 2611 | } |
7d4f8efa TT |
2612 | |
2613 | (*current_target.to_program_signals) (¤t_target, | |
2614 | numsigs, program_signals); | |
9b224c5e PA |
2615 | } |
2616 | ||
098dba18 TT |
2617 | static int |
2618 | default_follow_fork (struct target_ops *self, int follow_child, | |
2619 | int detach_fork) | |
2620 | { | |
2621 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2622 | internal_error (__FILE__, __LINE__, | |
2623 | _("could not find a target to follow fork")); | |
2624 | } | |
2625 | ||
ee057212 DJ |
2626 | /* Look through the list of possible targets for a target that can |
2627 | follow forks. */ | |
2628 | ||
2629 | int | |
07107ca6 | 2630 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 | 2631 | { |
098dba18 TT |
2632 | int retval = current_target.to_follow_fork (¤t_target, |
2633 | follow_child, detach_fork); | |
ee057212 | 2634 | |
098dba18 TT |
2635 | if (targetdebug) |
2636 | fprintf_unfiltered (gdb_stdlog, | |
2637 | "target_follow_fork (%d, %d) = %d\n", | |
2638 | follow_child, detach_fork, retval); | |
2639 | return retval; | |
ee057212 DJ |
2640 | } |
2641 | ||
8d657035 TT |
2642 | static void |
2643 | default_mourn_inferior (struct target_ops *self) | |
2644 | { | |
2645 | internal_error (__FILE__, __LINE__, | |
2646 | _("could not find a target to follow mourn inferior")); | |
2647 | } | |
2648 | ||
136d6dae VP |
2649 | void |
2650 | target_mourn_inferior (void) | |
2651 | { | |
8d657035 TT |
2652 | current_target.to_mourn_inferior (¤t_target); |
2653 | if (targetdebug) | |
2654 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
136d6dae | 2655 | |
8d657035 TT |
2656 | /* We no longer need to keep handles on any of the object files. |
2657 | Make sure to release them to avoid unnecessarily locking any | |
2658 | of them while we're not actually debugging. */ | |
2659 | bfd_cache_close_all (); | |
136d6dae VP |
2660 | } |
2661 | ||
424163ea DJ |
2662 | /* Look for a target which can describe architectural features, starting |
2663 | from TARGET. If we find one, return its description. */ | |
2664 | ||
2665 | const struct target_desc * | |
2666 | target_read_description (struct target_ops *target) | |
2667 | { | |
2668 | struct target_ops *t; | |
2669 | ||
2670 | for (t = target; t != NULL; t = t->beneath) | |
2671 | if (t->to_read_description != NULL) | |
2672 | { | |
2673 | const struct target_desc *tdesc; | |
2674 | ||
2675 | tdesc = t->to_read_description (t); | |
2676 | if (tdesc) | |
2677 | return tdesc; | |
2678 | } | |
2679 | ||
2680 | return NULL; | |
2681 | } | |
2682 | ||
08388c79 DE |
2683 | /* The default implementation of to_search_memory. |
2684 | This implements a basic search of memory, reading target memory and | |
2685 | performing the search here (as opposed to performing the search in on the | |
2686 | target side with, for example, gdbserver). */ | |
2687 | ||
2688 | int | |
2689 | simple_search_memory (struct target_ops *ops, | |
2690 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2691 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2692 | CORE_ADDR *found_addrp) | |
2693 | { | |
2694 | /* NOTE: also defined in find.c testcase. */ | |
2695 | #define SEARCH_CHUNK_SIZE 16000 | |
2696 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2697 | /* Buffer to hold memory contents for searching. */ | |
2698 | gdb_byte *search_buf; | |
2699 | unsigned search_buf_size; | |
2700 | struct cleanup *old_cleanups; | |
2701 | ||
2702 | search_buf_size = chunk_size + pattern_len - 1; | |
2703 | ||
2704 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2705 | if (search_space_len < search_buf_size) | |
2706 | search_buf_size = search_space_len; | |
2707 | ||
2708 | search_buf = malloc (search_buf_size); | |
2709 | if (search_buf == NULL) | |
5e1471f5 | 2710 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2711 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2712 | ||
2713 | /* Prime the search buffer. */ | |
2714 | ||
2715 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2716 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2717 | { | |
b3dc46ff AB |
2718 | warning (_("Unable to access %s bytes of target " |
2719 | "memory at %s, halting search."), | |
2720 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2721 | do_cleanups (old_cleanups); |
2722 | return -1; | |
2723 | } | |
2724 | ||
2725 | /* Perform the search. | |
2726 | ||
2727 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2728 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2729 | read in another N bytes. */ | |
2730 | ||
2731 | while (search_space_len >= pattern_len) | |
2732 | { | |
2733 | gdb_byte *found_ptr; | |
2734 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2735 | ||
2736 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2737 | pattern, pattern_len); | |
2738 | ||
2739 | if (found_ptr != NULL) | |
2740 | { | |
2741 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2742 | |
08388c79 DE |
2743 | *found_addrp = found_addr; |
2744 | do_cleanups (old_cleanups); | |
2745 | return 1; | |
2746 | } | |
2747 | ||
2748 | /* Not found in this chunk, skip to next chunk. */ | |
2749 | ||
2750 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2751 | if (search_space_len >= chunk_size) | |
2752 | search_space_len -= chunk_size; | |
2753 | else | |
2754 | search_space_len = 0; | |
2755 | ||
2756 | if (search_space_len >= pattern_len) | |
2757 | { | |
2758 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2759 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2760 | int nr_to_read; |
2761 | ||
2762 | /* Copy the trailing part of the previous iteration to the front | |
2763 | of the buffer for the next iteration. */ | |
2764 | gdb_assert (keep_len == pattern_len - 1); | |
2765 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2766 | ||
2767 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2768 | ||
2769 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2770 | search_buf + keep_len, read_addr, | |
2771 | nr_to_read) != nr_to_read) | |
2772 | { | |
b3dc46ff | 2773 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2774 | "memory at %s, halting search."), |
b3dc46ff | 2775 | plongest (nr_to_read), |
08388c79 DE |
2776 | hex_string (read_addr)); |
2777 | do_cleanups (old_cleanups); | |
2778 | return -1; | |
2779 | } | |
2780 | ||
2781 | start_addr += chunk_size; | |
2782 | } | |
2783 | } | |
2784 | ||
2785 | /* Not found. */ | |
2786 | ||
2787 | do_cleanups (old_cleanups); | |
2788 | return 0; | |
2789 | } | |
2790 | ||
2791 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2792 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2793 | ||
2794 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2795 | requiring halting of the search (e.g. memory read error). | |
2796 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2797 | ||
2798 | int | |
2799 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2800 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2801 | CORE_ADDR *found_addrp) | |
2802 | { | |
2803 | struct target_ops *t; | |
2804 | int found; | |
2805 | ||
2806 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2807 | so we have to scan the target stack and handle targetdebug | |
2808 | ourselves. */ | |
2809 | ||
2810 | if (targetdebug) | |
2811 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2812 | hex_string (start_addr)); | |
2813 | ||
2814 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2815 | if (t->to_search_memory != NULL) | |
2816 | break; | |
2817 | ||
2818 | if (t != NULL) | |
2819 | { | |
2820 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2821 | pattern, pattern_len, found_addrp); | |
2822 | } | |
2823 | else | |
2824 | { | |
2825 | /* If a special version of to_search_memory isn't available, use the | |
2826 | simple version. */ | |
c35b1492 | 2827 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2828 | start_addr, search_space_len, |
2829 | pattern, pattern_len, found_addrp); | |
2830 | } | |
2831 | ||
2832 | if (targetdebug) | |
2833 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2834 | ||
2835 | return found; | |
2836 | } | |
2837 | ||
8edfe269 DJ |
2838 | /* Look through the currently pushed targets. If none of them will |
2839 | be able to restart the currently running process, issue an error | |
2840 | message. */ | |
2841 | ||
2842 | void | |
2843 | target_require_runnable (void) | |
2844 | { | |
2845 | struct target_ops *t; | |
2846 | ||
2847 | for (t = target_stack; t != NULL; t = t->beneath) | |
2848 | { | |
2849 | /* If this target knows how to create a new program, then | |
2850 | assume we will still be able to after killing the current | |
2851 | one. Either killing and mourning will not pop T, or else | |
2852 | find_default_run_target will find it again. */ | |
2853 | if (t->to_create_inferior != NULL) | |
2854 | return; | |
2855 | ||
2856 | /* Do not worry about thread_stratum targets that can not | |
2857 | create inferiors. Assume they will be pushed again if | |
2858 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2859 | if (t->to_stratum == thread_stratum |
2860 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2861 | continue; |
2862 | ||
3e43a32a MS |
2863 | error (_("The \"%s\" target does not support \"run\". " |
2864 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2865 | t->to_shortname); |
2866 | } | |
2867 | ||
2868 | /* This function is only called if the target is running. In that | |
2869 | case there should have been a process_stratum target and it | |
c378eb4e | 2870 | should either know how to create inferiors, or not... */ |
9b20d036 | 2871 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2872 | } |
2873 | ||
c906108c SS |
2874 | /* Look through the list of possible targets for a target that can |
2875 | execute a run or attach command without any other data. This is | |
2876 | used to locate the default process stratum. | |
2877 | ||
5f667f2d PA |
2878 | If DO_MESG is not NULL, the result is always valid (error() is |
2879 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2880 | |
2881 | static struct target_ops * | |
fba45db2 | 2882 | find_default_run_target (char *do_mesg) |
c906108c SS |
2883 | { |
2884 | struct target_ops **t; | |
2885 | struct target_ops *runable = NULL; | |
2886 | int count; | |
2887 | ||
2888 | count = 0; | |
2889 | ||
2890 | for (t = target_structs; t < target_structs + target_struct_size; | |
2891 | ++t) | |
2892 | { | |
c5aa993b | 2893 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2894 | { |
2895 | runable = *t; | |
2896 | ++count; | |
2897 | } | |
2898 | } | |
2899 | ||
2900 | if (count != 1) | |
5f667f2d PA |
2901 | { |
2902 | if (do_mesg) | |
2903 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2904 | else | |
2905 | return NULL; | |
2906 | } | |
c906108c SS |
2907 | |
2908 | return runable; | |
2909 | } | |
2910 | ||
2911 | void | |
136d6dae | 2912 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2913 | { |
2914 | struct target_ops *t; | |
2915 | ||
c5aa993b | 2916 | t = find_default_run_target ("attach"); |
136d6dae | 2917 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2918 | return; |
2919 | } | |
2920 | ||
c906108c | 2921 | void |
136d6dae VP |
2922 | find_default_create_inferior (struct target_ops *ops, |
2923 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2924 | int from_tty) |
c906108c SS |
2925 | { |
2926 | struct target_ops *t; | |
2927 | ||
c5aa993b | 2928 | t = find_default_run_target ("run"); |
136d6dae | 2929 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
2930 | return; |
2931 | } | |
2932 | ||
2c0b251b | 2933 | static int |
6a109b6b | 2934 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
2935 | { |
2936 | struct target_ops *t; | |
2937 | ||
5f667f2d PA |
2938 | /* This may be called before the target is pushed on the stack; |
2939 | look for the default process stratum. If there's none, gdb isn't | |
2940 | configured with a native debugger, and target remote isn't | |
2941 | connected yet. */ | |
2942 | t = find_default_run_target (NULL); | |
6b84065d | 2943 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 2944 | return (t->to_can_async_p) (t); |
b84876c2 PA |
2945 | return 0; |
2946 | } | |
2947 | ||
2c0b251b | 2948 | static int |
6a109b6b | 2949 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
2950 | { |
2951 | struct target_ops *t; | |
2952 | ||
5f667f2d PA |
2953 | /* This may be called before the target is pushed on the stack; |
2954 | look for the default process stratum. If there's none, gdb isn't | |
2955 | configured with a native debugger, and target remote isn't | |
2956 | connected yet. */ | |
2957 | t = find_default_run_target (NULL); | |
6b84065d | 2958 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 2959 | return (t->to_is_async_p) (t); |
b84876c2 PA |
2960 | return 0; |
2961 | } | |
2962 | ||
2c0b251b | 2963 | static int |
2a9a2795 | 2964 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
2965 | { |
2966 | struct target_ops *t; | |
2967 | ||
2968 | t = find_default_run_target (NULL); | |
2969 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 2970 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
2971 | return 0; |
2972 | } | |
2973 | ||
2974 | int | |
2c0b251b | 2975 | target_supports_non_stop (void) |
9908b566 VP |
2976 | { |
2977 | struct target_ops *t; | |
5d502164 | 2978 | |
9908b566 VP |
2979 | for (t = ¤t_target; t != NULL; t = t->beneath) |
2980 | if (t->to_supports_non_stop) | |
2a9a2795 | 2981 | return t->to_supports_non_stop (t); |
9908b566 VP |
2982 | |
2983 | return 0; | |
2984 | } | |
2985 | ||
145b16a9 UW |
2986 | /* Implement the "info proc" command. */ |
2987 | ||
451b7c33 | 2988 | int |
145b16a9 UW |
2989 | target_info_proc (char *args, enum info_proc_what what) |
2990 | { | |
2991 | struct target_ops *t; | |
2992 | ||
2993 | /* If we're already connected to something that can get us OS | |
2994 | related data, use it. Otherwise, try using the native | |
2995 | target. */ | |
2996 | if (current_target.to_stratum >= process_stratum) | |
2997 | t = current_target.beneath; | |
2998 | else | |
2999 | t = find_default_run_target (NULL); | |
3000 | ||
3001 | for (; t != NULL; t = t->beneath) | |
3002 | { | |
3003 | if (t->to_info_proc != NULL) | |
3004 | { | |
3005 | t->to_info_proc (t, args, what); | |
3006 | ||
3007 | if (targetdebug) | |
3008 | fprintf_unfiltered (gdb_stdlog, | |
3009 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3010 | ||
451b7c33 | 3011 | return 1; |
145b16a9 UW |
3012 | } |
3013 | } | |
3014 | ||
451b7c33 | 3015 | return 0; |
145b16a9 UW |
3016 | } |
3017 | ||
03583c20 | 3018 | static int |
2bfc0540 | 3019 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
3020 | { |
3021 | struct target_ops *t; | |
3022 | ||
3023 | t = find_default_run_target (NULL); | |
3024 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 3025 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
3026 | return 0; |
3027 | } | |
3028 | ||
3029 | int | |
3030 | target_supports_disable_randomization (void) | |
3031 | { | |
3032 | struct target_ops *t; | |
3033 | ||
3034 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3035 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 3036 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
3037 | |
3038 | return 0; | |
3039 | } | |
9908b566 | 3040 | |
07e059b5 VP |
3041 | char * |
3042 | target_get_osdata (const char *type) | |
3043 | { | |
07e059b5 VP |
3044 | struct target_ops *t; |
3045 | ||
739ef7fb PA |
3046 | /* If we're already connected to something that can get us OS |
3047 | related data, use it. Otherwise, try using the native | |
3048 | target. */ | |
3049 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3050 | t = current_target.beneath; |
739ef7fb PA |
3051 | else |
3052 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3053 | |
3054 | if (!t) | |
3055 | return NULL; | |
3056 | ||
6d097e65 | 3057 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3058 | } |
3059 | ||
6c95b8df PA |
3060 | /* Determine the current address space of thread PTID. */ |
3061 | ||
3062 | struct address_space * | |
3063 | target_thread_address_space (ptid_t ptid) | |
3064 | { | |
c0694254 | 3065 | struct address_space *aspace; |
6c95b8df | 3066 | struct inferior *inf; |
c0694254 PA |
3067 | struct target_ops *t; |
3068 | ||
3069 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3070 | { | |
3071 | if (t->to_thread_address_space != NULL) | |
3072 | { | |
3073 | aspace = t->to_thread_address_space (t, ptid); | |
3074 | gdb_assert (aspace); | |
6c95b8df | 3075 | |
c0694254 PA |
3076 | if (targetdebug) |
3077 | fprintf_unfiltered (gdb_stdlog, | |
3078 | "target_thread_address_space (%s) = %d\n", | |
3079 | target_pid_to_str (ptid), | |
3080 | address_space_num (aspace)); | |
3081 | return aspace; | |
3082 | } | |
3083 | } | |
6c95b8df PA |
3084 | |
3085 | /* Fall-back to the "main" address space of the inferior. */ | |
3086 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3087 | ||
3088 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3089 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3090 | _("Can't determine the current " |
3091 | "address space of thread %s\n"), | |
6c95b8df PA |
3092 | target_pid_to_str (ptid)); |
3093 | ||
3094 | return inf->aspace; | |
3095 | } | |
3096 | ||
7313baad UW |
3097 | |
3098 | /* Target file operations. */ | |
3099 | ||
3100 | static struct target_ops * | |
3101 | default_fileio_target (void) | |
3102 | { | |
3103 | /* If we're already connected to something that can perform | |
3104 | file I/O, use it. Otherwise, try using the native target. */ | |
3105 | if (current_target.to_stratum >= process_stratum) | |
3106 | return current_target.beneath; | |
3107 | else | |
3108 | return find_default_run_target ("file I/O"); | |
3109 | } | |
3110 | ||
3111 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3112 | target file descriptor, or -1 if an error occurs (and set | |
3113 | *TARGET_ERRNO). */ | |
3114 | int | |
3115 | target_fileio_open (const char *filename, int flags, int mode, | |
3116 | int *target_errno) | |
3117 | { | |
3118 | struct target_ops *t; | |
3119 | ||
3120 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3121 | { | |
3122 | if (t->to_fileio_open != NULL) | |
3123 | { | |
cd897586 | 3124 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
3125 | |
3126 | if (targetdebug) | |
3127 | fprintf_unfiltered (gdb_stdlog, | |
3128 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3129 | filename, flags, mode, | |
3130 | fd, fd != -1 ? 0 : *target_errno); | |
3131 | return fd; | |
3132 | } | |
3133 | } | |
3134 | ||
3135 | *target_errno = FILEIO_ENOSYS; | |
3136 | return -1; | |
3137 | } | |
3138 | ||
3139 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3140 | Return the number of bytes written, or -1 if an error occurs | |
3141 | (and set *TARGET_ERRNO). */ | |
3142 | int | |
3143 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3144 | ULONGEST offset, int *target_errno) | |
3145 | { | |
3146 | struct target_ops *t; | |
3147 | ||
3148 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3149 | { | |
3150 | if (t->to_fileio_pwrite != NULL) | |
3151 | { | |
0d866f62 | 3152 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
3153 | target_errno); |
3154 | ||
3155 | if (targetdebug) | |
3156 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3157 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3158 | "= %d (%d)\n", |
a71b5a38 | 3159 | fd, len, pulongest (offset), |
7313baad UW |
3160 | ret, ret != -1 ? 0 : *target_errno); |
3161 | return ret; | |
3162 | } | |
3163 | } | |
3164 | ||
3165 | *target_errno = FILEIO_ENOSYS; | |
3166 | return -1; | |
3167 | } | |
3168 | ||
3169 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3170 | Return the number of bytes read, or -1 if an error occurs | |
3171 | (and set *TARGET_ERRNO). */ | |
3172 | int | |
3173 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3174 | ULONGEST offset, int *target_errno) | |
3175 | { | |
3176 | struct target_ops *t; | |
3177 | ||
3178 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3179 | { | |
3180 | if (t->to_fileio_pread != NULL) | |
3181 | { | |
a3be983c | 3182 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
3183 | target_errno); |
3184 | ||
3185 | if (targetdebug) | |
3186 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3187 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3188 | "= %d (%d)\n", |
a71b5a38 | 3189 | fd, len, pulongest (offset), |
7313baad UW |
3190 | ret, ret != -1 ? 0 : *target_errno); |
3191 | return ret; | |
3192 | } | |
3193 | } | |
3194 | ||
3195 | *target_errno = FILEIO_ENOSYS; | |
3196 | return -1; | |
3197 | } | |
3198 | ||
3199 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3200 | (and set *TARGET_ERRNO). */ | |
3201 | int | |
3202 | target_fileio_close (int fd, int *target_errno) | |
3203 | { | |
3204 | struct target_ops *t; | |
3205 | ||
3206 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3207 | { | |
3208 | if (t->to_fileio_close != NULL) | |
3209 | { | |
df39ea25 | 3210 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
3211 | |
3212 | if (targetdebug) | |
3213 | fprintf_unfiltered (gdb_stdlog, | |
3214 | "target_fileio_close (%d) = %d (%d)\n", | |
3215 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3216 | return ret; | |
3217 | } | |
3218 | } | |
3219 | ||
3220 | *target_errno = FILEIO_ENOSYS; | |
3221 | return -1; | |
3222 | } | |
3223 | ||
3224 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3225 | occurs (and set *TARGET_ERRNO). */ | |
3226 | int | |
3227 | target_fileio_unlink (const char *filename, int *target_errno) | |
3228 | { | |
3229 | struct target_ops *t; | |
3230 | ||
3231 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3232 | { | |
3233 | if (t->to_fileio_unlink != NULL) | |
3234 | { | |
dbbca37d | 3235 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
3236 | |
3237 | if (targetdebug) | |
3238 | fprintf_unfiltered (gdb_stdlog, | |
3239 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3240 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3241 | return ret; | |
3242 | } | |
3243 | } | |
3244 | ||
3245 | *target_errno = FILEIO_ENOSYS; | |
3246 | return -1; | |
3247 | } | |
3248 | ||
b9e7b9c3 UW |
3249 | /* Read value of symbolic link FILENAME on the target. Return a |
3250 | null-terminated string allocated via xmalloc, or NULL if an error | |
3251 | occurs (and set *TARGET_ERRNO). */ | |
3252 | char * | |
3253 | target_fileio_readlink (const char *filename, int *target_errno) | |
3254 | { | |
3255 | struct target_ops *t; | |
3256 | ||
3257 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3258 | { | |
3259 | if (t->to_fileio_readlink != NULL) | |
3260 | { | |
fab5aa7c | 3261 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
3262 | |
3263 | if (targetdebug) | |
3264 | fprintf_unfiltered (gdb_stdlog, | |
3265 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3266 | filename, ret? ret : "(nil)", | |
3267 | ret? 0 : *target_errno); | |
3268 | return ret; | |
3269 | } | |
3270 | } | |
3271 | ||
3272 | *target_errno = FILEIO_ENOSYS; | |
3273 | return NULL; | |
3274 | } | |
3275 | ||
7313baad UW |
3276 | static void |
3277 | target_fileio_close_cleanup (void *opaque) | |
3278 | { | |
3279 | int fd = *(int *) opaque; | |
3280 | int target_errno; | |
3281 | ||
3282 | target_fileio_close (fd, &target_errno); | |
3283 | } | |
3284 | ||
3285 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3286 | return the size of the transferred data. PADDING additional bytes are | |
3287 | available in *BUF_P. This is a helper function for | |
3288 | target_fileio_read_alloc; see the declaration of that function for more | |
3289 | information. */ | |
3290 | ||
3291 | static LONGEST | |
3292 | target_fileio_read_alloc_1 (const char *filename, | |
3293 | gdb_byte **buf_p, int padding) | |
3294 | { | |
3295 | struct cleanup *close_cleanup; | |
3296 | size_t buf_alloc, buf_pos; | |
3297 | gdb_byte *buf; | |
3298 | LONGEST n; | |
3299 | int fd; | |
3300 | int target_errno; | |
3301 | ||
3302 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3303 | if (fd == -1) | |
3304 | return -1; | |
3305 | ||
3306 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3307 | ||
3308 | /* Start by reading up to 4K at a time. The target will throttle | |
3309 | this number down if necessary. */ | |
3310 | buf_alloc = 4096; | |
3311 | buf = xmalloc (buf_alloc); | |
3312 | buf_pos = 0; | |
3313 | while (1) | |
3314 | { | |
3315 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3316 | buf_alloc - buf_pos - padding, buf_pos, | |
3317 | &target_errno); | |
3318 | if (n < 0) | |
3319 | { | |
3320 | /* An error occurred. */ | |
3321 | do_cleanups (close_cleanup); | |
3322 | xfree (buf); | |
3323 | return -1; | |
3324 | } | |
3325 | else if (n == 0) | |
3326 | { | |
3327 | /* Read all there was. */ | |
3328 | do_cleanups (close_cleanup); | |
3329 | if (buf_pos == 0) | |
3330 | xfree (buf); | |
3331 | else | |
3332 | *buf_p = buf; | |
3333 | return buf_pos; | |
3334 | } | |
3335 | ||
3336 | buf_pos += n; | |
3337 | ||
3338 | /* If the buffer is filling up, expand it. */ | |
3339 | if (buf_alloc < buf_pos * 2) | |
3340 | { | |
3341 | buf_alloc *= 2; | |
3342 | buf = xrealloc (buf, buf_alloc); | |
3343 | } | |
3344 | ||
3345 | QUIT; | |
3346 | } | |
3347 | } | |
3348 | ||
3349 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3350 | the size of the transferred data. See the declaration in "target.h" | |
3351 | function for more information about the return value. */ | |
3352 | ||
3353 | LONGEST | |
3354 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3355 | { | |
3356 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3357 | } | |
3358 | ||
3359 | /* Read target file FILENAME. The result is NUL-terminated and | |
3360 | returned as a string, allocated using xmalloc. If an error occurs | |
3361 | or the transfer is unsupported, NULL is returned. Empty objects | |
3362 | are returned as allocated but empty strings. A warning is issued | |
3363 | if the result contains any embedded NUL bytes. */ | |
3364 | ||
3365 | char * | |
3366 | target_fileio_read_stralloc (const char *filename) | |
3367 | { | |
39086a0e PA |
3368 | gdb_byte *buffer; |
3369 | char *bufstr; | |
7313baad UW |
3370 | LONGEST i, transferred; |
3371 | ||
39086a0e PA |
3372 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3373 | bufstr = (char *) buffer; | |
7313baad UW |
3374 | |
3375 | if (transferred < 0) | |
3376 | return NULL; | |
3377 | ||
3378 | if (transferred == 0) | |
3379 | return xstrdup (""); | |
3380 | ||
39086a0e | 3381 | bufstr[transferred] = 0; |
7313baad UW |
3382 | |
3383 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3384 | for (i = strlen (bufstr); i < transferred; i++) |
3385 | if (bufstr[i] != 0) | |
7313baad UW |
3386 | { |
3387 | warning (_("target file %s " | |
3388 | "contained unexpected null characters"), | |
3389 | filename); | |
3390 | break; | |
3391 | } | |
3392 | ||
39086a0e | 3393 | return bufstr; |
7313baad UW |
3394 | } |
3395 | ||
3396 | ||
e0d24f8d | 3397 | static int |
31568a15 TT |
3398 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3399 | CORE_ADDR addr, int len) | |
e0d24f8d | 3400 | { |
f5656ead | 3401 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3402 | } |
3403 | ||
5009afc5 AS |
3404 | static int |
3405 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3406 | CORE_ADDR addr, | |
3407 | CORE_ADDR start, int length) | |
3408 | { | |
3409 | return addr >= start && addr < start + length; | |
3410 | } | |
3411 | ||
c2250ad1 UW |
3412 | static struct gdbarch * |
3413 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3414 | { | |
f5656ead | 3415 | return target_gdbarch (); |
c2250ad1 UW |
3416 | } |
3417 | ||
c906108c | 3418 | static int |
fba45db2 | 3419 | return_zero (void) |
c906108c SS |
3420 | { |
3421 | return 0; | |
3422 | } | |
3423 | ||
ed9a39eb JM |
3424 | /* |
3425 | * Find the next target down the stack from the specified target. | |
3426 | */ | |
3427 | ||
3428 | struct target_ops * | |
fba45db2 | 3429 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3430 | { |
258b763a | 3431 | return t->beneath; |
ed9a39eb JM |
3432 | } |
3433 | ||
8b06beed TT |
3434 | /* See target.h. */ |
3435 | ||
3436 | struct target_ops * | |
3437 | find_target_at (enum strata stratum) | |
3438 | { | |
3439 | struct target_ops *t; | |
3440 | ||
3441 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3442 | if (t->to_stratum == stratum) | |
3443 | return t; | |
3444 | ||
3445 | return NULL; | |
3446 | } | |
3447 | ||
c906108c SS |
3448 | \f |
3449 | /* The inferior process has died. Long live the inferior! */ | |
3450 | ||
3451 | void | |
fba45db2 | 3452 | generic_mourn_inferior (void) |
c906108c | 3453 | { |
7f9f62ba | 3454 | ptid_t ptid; |
c906108c | 3455 | |
7f9f62ba | 3456 | ptid = inferior_ptid; |
39f77062 | 3457 | inferior_ptid = null_ptid; |
7f9f62ba | 3458 | |
f59f708a PA |
3459 | /* Mark breakpoints uninserted in case something tries to delete a |
3460 | breakpoint while we delete the inferior's threads (which would | |
3461 | fail, since the inferior is long gone). */ | |
3462 | mark_breakpoints_out (); | |
3463 | ||
7f9f62ba PA |
3464 | if (!ptid_equal (ptid, null_ptid)) |
3465 | { | |
3466 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3467 | exit_inferior (pid); |
7f9f62ba PA |
3468 | } |
3469 | ||
f59f708a PA |
3470 | /* Note this wipes step-resume breakpoints, so needs to be done |
3471 | after exit_inferior, which ends up referencing the step-resume | |
3472 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3473 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3474 | |
c906108c SS |
3475 | registers_changed (); |
3476 | ||
c906108c SS |
3477 | reopen_exec_file (); |
3478 | reinit_frame_cache (); | |
3479 | ||
9a4105ab AC |
3480 | if (deprecated_detach_hook) |
3481 | deprecated_detach_hook (); | |
c906108c SS |
3482 | } |
3483 | \f | |
fd0a2a6f MK |
3484 | /* Convert a normal process ID to a string. Returns the string in a |
3485 | static buffer. */ | |
c906108c SS |
3486 | |
3487 | char * | |
39f77062 | 3488 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3489 | { |
fd0a2a6f | 3490 | static char buf[32]; |
c906108c | 3491 | |
5fff8fc0 | 3492 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3493 | return buf; |
3494 | } | |
3495 | ||
2c0b251b | 3496 | static char * |
770234d3 | 3497 | default_pid_to_str (struct target_ops *ops, ptid_t ptid) |
117de6a9 PA |
3498 | { |
3499 | return normal_pid_to_str (ptid); | |
3500 | } | |
3501 | ||
9b4eba8e HZ |
3502 | /* Error-catcher for target_find_memory_regions. */ |
3503 | static int | |
2e73927c TT |
3504 | dummy_find_memory_regions (struct target_ops *self, |
3505 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3506 | { |
9b4eba8e | 3507 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3508 | return 0; |
3509 | } | |
3510 | ||
9b4eba8e HZ |
3511 | /* Error-catcher for target_make_corefile_notes. */ |
3512 | static char * | |
fc6691b2 TT |
3513 | dummy_make_corefile_notes (struct target_ops *self, |
3514 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3515 | { |
9b4eba8e | 3516 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3517 | return NULL; |
3518 | } | |
3519 | ||
c906108c SS |
3520 | /* Set up the handful of non-empty slots needed by the dummy target |
3521 | vector. */ | |
3522 | ||
3523 | static void | |
fba45db2 | 3524 | init_dummy_target (void) |
c906108c SS |
3525 | { |
3526 | dummy_target.to_shortname = "None"; | |
3527 | dummy_target.to_longname = "None"; | |
3528 | dummy_target.to_doc = ""; | |
c906108c | 3529 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3530 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3531 | dummy_target.to_supports_disable_randomization |
3532 | = find_default_supports_disable_randomization; | |
c906108c | 3533 | dummy_target.to_stratum = dummy_stratum; |
c35b1492 PA |
3534 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3535 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3536 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3537 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3538 | dummy_target.to_has_execution |
3539 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3540 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3541 | |
3542 | install_dummy_methods (&dummy_target); | |
c906108c | 3543 | } |
c906108c | 3544 | \f |
c906108c | 3545 | static void |
fba45db2 | 3546 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3547 | { |
3548 | debug_target.to_open (args, from_tty); | |
3549 | ||
96baa820 | 3550 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3551 | } |
3552 | ||
f1c07ab0 | 3553 | void |
460014f5 | 3554 | target_close (struct target_ops *targ) |
f1c07ab0 | 3555 | { |
7fdc1521 TT |
3556 | gdb_assert (!target_is_pushed (targ)); |
3557 | ||
f1c07ab0 | 3558 | if (targ->to_xclose != NULL) |
460014f5 | 3559 | targ->to_xclose (targ); |
f1c07ab0 | 3560 | else if (targ->to_close != NULL) |
de90e03d | 3561 | targ->to_close (targ); |
947b8855 PA |
3562 | |
3563 | if (targetdebug) | |
460014f5 | 3564 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3565 | } |
3566 | ||
136d6dae VP |
3567 | void |
3568 | target_attach (char *args, int from_tty) | |
3569 | { | |
e9a29200 TT |
3570 | current_target.to_attach (¤t_target, args, from_tty); |
3571 | if (targetdebug) | |
3572 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3573 | args, from_tty); | |
136d6dae VP |
3574 | } |
3575 | ||
28439f5e PA |
3576 | int |
3577 | target_thread_alive (ptid_t ptid) | |
c906108c | 3578 | { |
28439f5e | 3579 | struct target_ops *t; |
5d502164 | 3580 | |
28439f5e PA |
3581 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3582 | { | |
3583 | if (t->to_thread_alive != NULL) | |
3584 | { | |
3585 | int retval; | |
c906108c | 3586 | |
28439f5e PA |
3587 | retval = t->to_thread_alive (t, ptid); |
3588 | if (targetdebug) | |
3589 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3590 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3591 | |
3592 | return retval; | |
3593 | } | |
3594 | } | |
3595 | ||
3596 | return 0; | |
3597 | } | |
3598 | ||
3599 | void | |
3600 | target_find_new_threads (void) | |
3601 | { | |
09b0dc2b TT |
3602 | current_target.to_find_new_threads (¤t_target); |
3603 | if (targetdebug) | |
3604 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
c906108c SS |
3605 | } |
3606 | ||
d914c394 SS |
3607 | void |
3608 | target_stop (ptid_t ptid) | |
3609 | { | |
3610 | if (!may_stop) | |
3611 | { | |
3612 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3613 | return; | |
3614 | } | |
3615 | ||
1eab8a48 | 3616 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3617 | } |
3618 | ||
c906108c | 3619 | static void |
f045800c | 3620 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3621 | { |
f045800c | 3622 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3623 | |
28439f5e | 3624 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3625 | } |
3626 | ||
09826ec5 PA |
3627 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3628 | result. The LIST incoming argument is released. */ | |
3629 | ||
3630 | static char * | |
3631 | str_comma_list_concat_elem (char *list, const char *elem) | |
3632 | { | |
3633 | if (list == NULL) | |
3634 | return xstrdup (elem); | |
3635 | else | |
3636 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3637 | } | |
3638 | ||
3639 | /* Helper for target_options_to_string. If OPT is present in | |
3640 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3641 | Returns the new resulting string. OPT is removed from | |
3642 | TARGET_OPTIONS. */ | |
3643 | ||
3644 | static char * | |
3645 | do_option (int *target_options, char *ret, | |
3646 | int opt, char *opt_str) | |
3647 | { | |
3648 | if ((*target_options & opt) != 0) | |
3649 | { | |
3650 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3651 | *target_options &= ~opt; | |
3652 | } | |
3653 | ||
3654 | return ret; | |
3655 | } | |
3656 | ||
3657 | char * | |
3658 | target_options_to_string (int target_options) | |
3659 | { | |
3660 | char *ret = NULL; | |
3661 | ||
3662 | #define DO_TARG_OPTION(OPT) \ | |
3663 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3664 | ||
3665 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3666 | ||
3667 | if (target_options != 0) | |
3668 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3669 | ||
3670 | if (ret == NULL) | |
3671 | ret = xstrdup (""); | |
3672 | return ret; | |
3673 | } | |
3674 | ||
bf0c5130 | 3675 | static void |
56be3814 UW |
3676 | debug_print_register (const char * func, |
3677 | struct regcache *regcache, int regno) | |
bf0c5130 | 3678 | { |
f8d29908 | 3679 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3680 | |
bf0c5130 | 3681 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3682 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3683 | && gdbarch_register_name (gdbarch, regno) != NULL |
3684 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3685 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3686 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3687 | else |
3688 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3689 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3690 | { |
e17a4113 | 3691 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3692 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3693 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3694 | |
0ff58721 | 3695 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3696 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3697 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3698 | { |
3699 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3700 | } | |
81c4a259 | 3701 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3702 | { |
e17a4113 | 3703 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3704 | |
0b1553bc UW |
3705 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3706 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3707 | } |
3708 | } | |
3709 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3710 | } | |
3711 | ||
28439f5e PA |
3712 | void |
3713 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3714 | { |
ad5989bd TT |
3715 | current_target.to_fetch_registers (¤t_target, regcache, regno); |
3716 | if (targetdebug) | |
3717 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
3718 | } |
3719 | ||
28439f5e PA |
3720 | void |
3721 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3722 | { |
28439f5e | 3723 | struct target_ops *t; |
5d502164 | 3724 | |
d914c394 SS |
3725 | if (!may_write_registers) |
3726 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3727 | ||
6b84065d TT |
3728 | current_target.to_store_registers (¤t_target, regcache, regno); |
3729 | if (targetdebug) | |
28439f5e | 3730 | { |
6b84065d | 3731 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3732 | } |
c906108c SS |
3733 | } |
3734 | ||
dc146f7c VP |
3735 | int |
3736 | target_core_of_thread (ptid_t ptid) | |
3737 | { | |
3738 | struct target_ops *t; | |
3739 | ||
3740 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3741 | { | |
3742 | if (t->to_core_of_thread != NULL) | |
3743 | { | |
3744 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 3745 | |
dc146f7c | 3746 | if (targetdebug) |
3e43a32a MS |
3747 | fprintf_unfiltered (gdb_stdlog, |
3748 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 3749 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
3750 | return retval; |
3751 | } | |
3752 | } | |
3753 | ||
3754 | return -1; | |
3755 | } | |
3756 | ||
4a5e7a5b PA |
3757 | int |
3758 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3759 | { | |
3760 | struct target_ops *t; | |
3761 | ||
3762 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3763 | { | |
3764 | if (t->to_verify_memory != NULL) | |
3765 | { | |
3766 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 3767 | |
4a5e7a5b | 3768 | if (targetdebug) |
3e43a32a MS |
3769 | fprintf_unfiltered (gdb_stdlog, |
3770 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 3771 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
3772 | pulongest (size), |
3773 | retval); | |
3774 | return retval; | |
3775 | } | |
3776 | } | |
3777 | ||
3778 | tcomplain (); | |
3779 | } | |
3780 | ||
9c06b0b4 TJB |
3781 | /* The documentation for this function is in its prototype declaration in |
3782 | target.h. */ | |
3783 | ||
3784 | int | |
3785 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3786 | { | |
cd4ae029 | 3787 | int ret; |
9c06b0b4 | 3788 | |
cd4ae029 TT |
3789 | ret = current_target.to_insert_mask_watchpoint (¤t_target, |
3790 | addr, mask, rw); | |
9c06b0b4 | 3791 | |
cd4ae029 TT |
3792 | if (targetdebug) |
3793 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3794 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", |
cd4ae029 TT |
3795 | core_addr_to_string (addr), |
3796 | core_addr_to_string (mask), rw, ret); | |
3797 | ||
3798 | return ret; | |
9c06b0b4 TJB |
3799 | } |
3800 | ||
3801 | /* The documentation for this function is in its prototype declaration in | |
3802 | target.h. */ | |
3803 | ||
3804 | int | |
3805 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3806 | { | |
8b1c364c | 3807 | int ret; |
9c06b0b4 | 3808 | |
8b1c364c TT |
3809 | ret = current_target.to_remove_mask_watchpoint (¤t_target, |
3810 | addr, mask, rw); | |
9c06b0b4 | 3811 | |
8b1c364c TT |
3812 | if (targetdebug) |
3813 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3814 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", |
8b1c364c TT |
3815 | core_addr_to_string (addr), |
3816 | core_addr_to_string (mask), rw, ret); | |
9c06b0b4 | 3817 | |
8b1c364c | 3818 | return ret; |
9c06b0b4 TJB |
3819 | } |
3820 | ||
3821 | /* The documentation for this function is in its prototype declaration | |
3822 | in target.h. */ | |
3823 | ||
3824 | int | |
3825 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3826 | { | |
6c7e5e5c TT |
3827 | return current_target.to_masked_watch_num_registers (¤t_target, |
3828 | addr, mask); | |
9c06b0b4 TJB |
3829 | } |
3830 | ||
f1310107 TJB |
3831 | /* The documentation for this function is in its prototype declaration |
3832 | in target.h. */ | |
3833 | ||
3834 | int | |
3835 | target_ranged_break_num_registers (void) | |
3836 | { | |
a134316b | 3837 | return current_target.to_ranged_break_num_registers (¤t_target); |
f1310107 TJB |
3838 | } |
3839 | ||
02d27625 MM |
3840 | /* See target.h. */ |
3841 | ||
02d27625 MM |
3842 | struct btrace_target_info * |
3843 | target_enable_btrace (ptid_t ptid) | |
3844 | { | |
3845 | struct target_ops *t; | |
3846 | ||
3847 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3848 | if (t->to_enable_btrace != NULL) | |
e3c49f88 | 3849 | return t->to_enable_btrace (t, ptid); |
02d27625 MM |
3850 | |
3851 | tcomplain (); | |
3852 | return NULL; | |
3853 | } | |
3854 | ||
3855 | /* See target.h. */ | |
3856 | ||
3857 | void | |
3858 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3859 | { | |
3860 | struct target_ops *t; | |
3861 | ||
3862 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3863 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 | 3864 | { |
25e95349 | 3865 | t->to_disable_btrace (t, btinfo); |
d92f7ee3 SDJ |
3866 | return; |
3867 | } | |
02d27625 MM |
3868 | |
3869 | tcomplain (); | |
3870 | } | |
3871 | ||
3872 | /* See target.h. */ | |
3873 | ||
3874 | void | |
3875 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
3876 | { | |
3877 | struct target_ops *t; | |
3878 | ||
3879 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3880 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 | 3881 | { |
1777056d | 3882 | t->to_teardown_btrace (t, btinfo); |
d92f7ee3 SDJ |
3883 | return; |
3884 | } | |
02d27625 MM |
3885 | |
3886 | tcomplain (); | |
3887 | } | |
3888 | ||
3889 | /* See target.h. */ | |
3890 | ||
969c39fb MM |
3891 | enum btrace_error |
3892 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
3893 | struct btrace_target_info *btinfo, | |
02d27625 MM |
3894 | enum btrace_read_type type) |
3895 | { | |
3896 | struct target_ops *t; | |
3897 | ||
3898 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3899 | if (t->to_read_btrace != NULL) | |
39c49f83 | 3900 | return t->to_read_btrace (t, btrace, btinfo, type); |
02d27625 MM |
3901 | |
3902 | tcomplain (); | |
969c39fb | 3903 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
3904 | } |
3905 | ||
d02ed0bb MM |
3906 | /* See target.h. */ |
3907 | ||
7c1687a9 MM |
3908 | void |
3909 | target_stop_recording (void) | |
3910 | { | |
3911 | struct target_ops *t; | |
3912 | ||
3913 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3914 | if (t->to_stop_recording != NULL) | |
3915 | { | |
c6cd7c02 | 3916 | t->to_stop_recording (t); |
7c1687a9 MM |
3917 | return; |
3918 | } | |
3919 | ||
3920 | /* This is optional. */ | |
3921 | } | |
3922 | ||
3923 | /* See target.h. */ | |
3924 | ||
d02ed0bb MM |
3925 | void |
3926 | target_info_record (void) | |
3927 | { | |
3928 | struct target_ops *t; | |
3929 | ||
3930 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3931 | if (t->to_info_record != NULL) | |
3932 | { | |
630d6a4a | 3933 | t->to_info_record (t); |
d02ed0bb MM |
3934 | return; |
3935 | } | |
3936 | ||
3937 | tcomplain (); | |
3938 | } | |
3939 | ||
3940 | /* See target.h. */ | |
3941 | ||
3942 | void | |
85e1311a | 3943 | target_save_record (const char *filename) |
d02ed0bb MM |
3944 | { |
3945 | struct target_ops *t; | |
3946 | ||
3947 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3948 | if (t->to_save_record != NULL) | |
3949 | { | |
1390f529 | 3950 | t->to_save_record (t, filename); |
d02ed0bb MM |
3951 | return; |
3952 | } | |
3953 | ||
3954 | tcomplain (); | |
3955 | } | |
3956 | ||
3957 | /* See target.h. */ | |
3958 | ||
3959 | int | |
3960 | target_supports_delete_record (void) | |
3961 | { | |
3962 | struct target_ops *t; | |
3963 | ||
3964 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3965 | if (t->to_delete_record != NULL) | |
3966 | return 1; | |
3967 | ||
3968 | return 0; | |
3969 | } | |
3970 | ||
3971 | /* See target.h. */ | |
3972 | ||
3973 | void | |
3974 | target_delete_record (void) | |
3975 | { | |
3976 | struct target_ops *t; | |
3977 | ||
3978 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3979 | if (t->to_delete_record != NULL) | |
3980 | { | |
d1b55219 | 3981 | t->to_delete_record (t); |
d02ed0bb MM |
3982 | return; |
3983 | } | |
3984 | ||
3985 | tcomplain (); | |
3986 | } | |
3987 | ||
3988 | /* See target.h. */ | |
3989 | ||
3990 | int | |
3991 | target_record_is_replaying (void) | |
3992 | { | |
3993 | struct target_ops *t; | |
3994 | ||
3995 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3996 | if (t->to_record_is_replaying != NULL) | |
1c63c994 | 3997 | return t->to_record_is_replaying (t); |
d02ed0bb MM |
3998 | |
3999 | return 0; | |
4000 | } | |
4001 | ||
4002 | /* See target.h. */ | |
4003 | ||
4004 | void | |
4005 | target_goto_record_begin (void) | |
4006 | { | |
4007 | struct target_ops *t; | |
4008 | ||
4009 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4010 | if (t->to_goto_record_begin != NULL) | |
4011 | { | |
08475817 | 4012 | t->to_goto_record_begin (t); |
d02ed0bb MM |
4013 | return; |
4014 | } | |
4015 | ||
4016 | tcomplain (); | |
4017 | } | |
4018 | ||
4019 | /* See target.h. */ | |
4020 | ||
4021 | void | |
4022 | target_goto_record_end (void) | |
4023 | { | |
4024 | struct target_ops *t; | |
4025 | ||
4026 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4027 | if (t->to_goto_record_end != NULL) | |
4028 | { | |
307a1b91 | 4029 | t->to_goto_record_end (t); |
d02ed0bb MM |
4030 | return; |
4031 | } | |
4032 | ||
4033 | tcomplain (); | |
4034 | } | |
4035 | ||
4036 | /* See target.h. */ | |
4037 | ||
4038 | void | |
4039 | target_goto_record (ULONGEST insn) | |
4040 | { | |
4041 | struct target_ops *t; | |
4042 | ||
4043 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4044 | if (t->to_goto_record != NULL) | |
4045 | { | |
606183ac | 4046 | t->to_goto_record (t, insn); |
d02ed0bb MM |
4047 | return; |
4048 | } | |
4049 | ||
4050 | tcomplain (); | |
4051 | } | |
4052 | ||
67c86d06 MM |
4053 | /* See target.h. */ |
4054 | ||
4055 | void | |
4056 | target_insn_history (int size, int flags) | |
4057 | { | |
4058 | struct target_ops *t; | |
4059 | ||
4060 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4061 | if (t->to_insn_history != NULL) | |
4062 | { | |
7a6c5609 | 4063 | t->to_insn_history (t, size, flags); |
67c86d06 MM |
4064 | return; |
4065 | } | |
4066 | ||
4067 | tcomplain (); | |
4068 | } | |
4069 | ||
4070 | /* See target.h. */ | |
4071 | ||
4072 | void | |
4073 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4074 | { | |
4075 | struct target_ops *t; | |
4076 | ||
4077 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4078 | if (t->to_insn_history_from != NULL) | |
4079 | { | |
9abc3ff3 | 4080 | t->to_insn_history_from (t, from, size, flags); |
67c86d06 MM |
4081 | return; |
4082 | } | |
4083 | ||
4084 | tcomplain (); | |
4085 | } | |
4086 | ||
4087 | /* See target.h. */ | |
4088 | ||
4089 | void | |
4090 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4091 | { | |
4092 | struct target_ops *t; | |
4093 | ||
4094 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4095 | if (t->to_insn_history_range != NULL) | |
4096 | { | |
4e99c6b7 | 4097 | t->to_insn_history_range (t, begin, end, flags); |
67c86d06 MM |
4098 | return; |
4099 | } | |
4100 | ||
4101 | tcomplain (); | |
4102 | } | |
4103 | ||
15984c13 MM |
4104 | /* See target.h. */ |
4105 | ||
4106 | void | |
4107 | target_call_history (int size, int flags) | |
4108 | { | |
4109 | struct target_ops *t; | |
4110 | ||
4111 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4112 | if (t->to_call_history != NULL) | |
4113 | { | |
5df2fcba | 4114 | t->to_call_history (t, size, flags); |
15984c13 MM |
4115 | return; |
4116 | } | |
4117 | ||
4118 | tcomplain (); | |
4119 | } | |
4120 | ||
4121 | /* See target.h. */ | |
4122 | ||
4123 | void | |
4124 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4125 | { | |
4126 | struct target_ops *t; | |
4127 | ||
4128 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4129 | if (t->to_call_history_from != NULL) | |
4130 | { | |
ec0aea04 | 4131 | t->to_call_history_from (t, begin, size, flags); |
15984c13 MM |
4132 | return; |
4133 | } | |
4134 | ||
4135 | tcomplain (); | |
4136 | } | |
4137 | ||
4138 | /* See target.h. */ | |
4139 | ||
4140 | void | |
4141 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4142 | { | |
4143 | struct target_ops *t; | |
4144 | ||
4145 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4146 | if (t->to_call_history_range != NULL) | |
4147 | { | |
f0d960ea | 4148 | t->to_call_history_range (t, begin, end, flags); |
15984c13 MM |
4149 | return; |
4150 | } | |
4151 | ||
4152 | tcomplain (); | |
4153 | } | |
4154 | ||
c906108c | 4155 | static void |
f32dbf8c | 4156 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4157 | { |
f32dbf8c | 4158 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4159 | |
96baa820 | 4160 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4161 | } |
4162 | ||
ea001bdc MM |
4163 | /* See target.h. */ |
4164 | ||
4165 | const struct frame_unwind * | |
4166 | target_get_unwinder (void) | |
4167 | { | |
4168 | struct target_ops *t; | |
4169 | ||
4170 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4171 | if (t->to_get_unwinder != NULL) | |
4172 | return t->to_get_unwinder; | |
4173 | ||
4174 | return NULL; | |
4175 | } | |
4176 | ||
4177 | /* See target.h. */ | |
4178 | ||
4179 | const struct frame_unwind * | |
4180 | target_get_tailcall_unwinder (void) | |
4181 | { | |
4182 | struct target_ops *t; | |
4183 | ||
4184 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4185 | if (t->to_get_tailcall_unwinder != NULL) | |
4186 | return t->to_get_tailcall_unwinder; | |
4187 | ||
4188 | return NULL; | |
4189 | } | |
4190 | ||
118e6252 MM |
4191 | /* See target.h. */ |
4192 | ||
4193 | CORE_ADDR | |
4194 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4195 | struct gdbarch *gdbarch) | |
4196 | { | |
4197 | for (; ops != NULL; ops = ops->beneath) | |
4198 | if (ops->to_decr_pc_after_break != NULL) | |
4199 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4200 | ||
4201 | return gdbarch_decr_pc_after_break (gdbarch); | |
4202 | } | |
4203 | ||
4204 | /* See target.h. */ | |
4205 | ||
4206 | CORE_ADDR | |
4207 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4208 | { | |
4209 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4210 | } | |
4211 | ||
c906108c | 4212 | static int |
961cb7b5 | 4213 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4214 | int write, struct mem_attrib *attrib, |
4215 | struct target_ops *target) | |
c906108c SS |
4216 | { |
4217 | int retval; | |
4218 | ||
c8e73a31 AC |
4219 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4220 | attrib, target); | |
c906108c | 4221 | |
96baa820 | 4222 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4223 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4224 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4225 | write ? "write" : "read", retval); |
c906108c | 4226 | |
c906108c SS |
4227 | if (retval > 0) |
4228 | { | |
4229 | int i; | |
4230 | ||
96baa820 | 4231 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4232 | for (i = 0; i < retval; i++) |
4233 | { | |
53b71562 | 4234 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4235 | { |
4236 | if (targetdebug < 2 && i > 0) | |
4237 | { | |
4238 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4239 | break; | |
4240 | } | |
4241 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4242 | } | |
2bc416ba | 4243 | |
96baa820 | 4244 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4245 | } |
4246 | } | |
4247 | ||
96baa820 | 4248 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4249 | |
4250 | return retval; | |
4251 | } | |
4252 | ||
4253 | static void | |
fba45db2 | 4254 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4255 | { |
4256 | debug_target.to_files_info (target); | |
4257 | ||
96baa820 | 4258 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4259 | } |
4260 | ||
4261 | static int | |
3db08215 | 4262 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4263 | struct bp_target_info *bp_tgt) |
c906108c SS |
4264 | { |
4265 | int retval; | |
4266 | ||
6b84065d | 4267 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4268 | |
96baa820 | 4269 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4270 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4271 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4272 | (unsigned long) retval); |
c906108c SS |
4273 | return retval; |
4274 | } | |
4275 | ||
4276 | static int | |
3db08215 | 4277 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4278 | struct bp_target_info *bp_tgt) |
c906108c SS |
4279 | { |
4280 | int retval; | |
4281 | ||
6b84065d | 4282 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4283 | |
96baa820 | 4284 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4285 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4286 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4287 | (unsigned long) retval); |
c906108c SS |
4288 | return retval; |
4289 | } | |
4290 | ||
ccaa32c7 | 4291 | static int |
5461485a TT |
4292 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4293 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4294 | { |
4295 | int retval; | |
4296 | ||
5461485a TT |
4297 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4298 | type, cnt, from_tty); | |
ccaa32c7 GS |
4299 | |
4300 | fprintf_unfiltered (gdb_stdlog, | |
4301 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4302 | (unsigned long) type, | |
4303 | (unsigned long) cnt, | |
4304 | (unsigned long) from_tty, | |
4305 | (unsigned long) retval); | |
4306 | return retval; | |
4307 | } | |
4308 | ||
e0d24f8d | 4309 | static int |
31568a15 TT |
4310 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4311 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4312 | { |
4313 | CORE_ADDR retval; | |
4314 | ||
31568a15 TT |
4315 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4316 | addr, len); | |
e0d24f8d WZ |
4317 | |
4318 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4319 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4320 | core_addr_to_string (addr), (unsigned long) len, | |
4321 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4322 | return retval; |
4323 | } | |
4324 | ||
0cf6dd15 | 4325 | static int |
c3a5ff89 TT |
4326 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4327 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4328 | struct expression *cond) |
4329 | { | |
4330 | int retval; | |
4331 | ||
c3a5ff89 TT |
4332 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4333 | addr, len, | |
3e43a32a | 4334 | rw, cond); |
0cf6dd15 TJB |
4335 | |
4336 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4337 | "target_can_accel_watchpoint_condition " |
4338 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4339 | core_addr_to_string (addr), len, rw, |
4340 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4341 | return retval; |
4342 | } | |
4343 | ||
ccaa32c7 | 4344 | static int |
6a109b6b | 4345 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4346 | { |
4347 | int retval; | |
4348 | ||
6a109b6b | 4349 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4350 | |
4351 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4352 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4353 | (unsigned long) retval); |
4354 | return retval; | |
4355 | } | |
4356 | ||
4aa7a7f5 JJ |
4357 | static int |
4358 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4359 | { |
4aa7a7f5 | 4360 | int retval; |
ccaa32c7 | 4361 | |
4aa7a7f5 | 4362 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4363 | |
4364 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4365 | "target_stopped_data_address ([%s]) = %ld\n", |
4366 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4367 | (unsigned long)retval); |
ccaa32c7 GS |
4368 | return retval; |
4369 | } | |
4370 | ||
5009afc5 AS |
4371 | static int |
4372 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4373 | CORE_ADDR addr, | |
4374 | CORE_ADDR start, int length) | |
4375 | { | |
4376 | int retval; | |
4377 | ||
4378 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4379 | start, length); | |
4380 | ||
4381 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4382 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4383 | core_addr_to_string (addr), core_addr_to_string (start), | |
4384 | length, retval); | |
5009afc5 AS |
4385 | return retval; |
4386 | } | |
4387 | ||
ccaa32c7 | 4388 | static int |
23a26771 TT |
4389 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4390 | struct gdbarch *gdbarch, | |
a6d9a66e | 4391 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4392 | { |
4393 | int retval; | |
4394 | ||
23a26771 TT |
4395 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4396 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4397 | |
4398 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4399 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4400 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4401 | (unsigned long) retval); |
4402 | return retval; | |
4403 | } | |
4404 | ||
4405 | static int | |
a64dc96c TT |
4406 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4407 | struct gdbarch *gdbarch, | |
a6d9a66e | 4408 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4409 | { |
4410 | int retval; | |
4411 | ||
a64dc96c TT |
4412 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4413 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4414 | |
4415 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4416 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4417 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4418 | (unsigned long) retval); |
4419 | return retval; | |
4420 | } | |
4421 | ||
4422 | static int | |
7bb99c53 TT |
4423 | debug_to_insert_watchpoint (struct target_ops *self, |
4424 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4425 | struct expression *cond) |
ccaa32c7 GS |
4426 | { |
4427 | int retval; | |
4428 | ||
7bb99c53 TT |
4429 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4430 | addr, len, type, cond); | |
ccaa32c7 GS |
4431 | |
4432 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4433 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4434 | core_addr_to_string (addr), len, type, | |
4435 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4436 | return retval; |
4437 | } | |
4438 | ||
4439 | static int | |
11b5219a TT |
4440 | debug_to_remove_watchpoint (struct target_ops *self, |
4441 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4442 | struct expression *cond) |
ccaa32c7 GS |
4443 | { |
4444 | int retval; | |
4445 | ||
11b5219a TT |
4446 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4447 | addr, len, type, cond); | |
ccaa32c7 GS |
4448 | |
4449 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4450 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4451 | core_addr_to_string (addr), len, type, | |
4452 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4453 | return retval; |
4454 | } | |
4455 | ||
c906108c | 4456 | static void |
c42bf286 | 4457 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4458 | { |
c42bf286 | 4459 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4460 | |
96baa820 | 4461 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4462 | } |
4463 | ||
4464 | static void | |
d2f640d4 | 4465 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4466 | { |
d2f640d4 | 4467 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4468 | |
96baa820 | 4469 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4470 | } |
4471 | ||
4472 | static void | |
2e1e1a19 | 4473 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4474 | { |
2e1e1a19 | 4475 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4476 | |
96baa820 | 4477 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4478 | } |
4479 | ||
4480 | static void | |
e3594fd1 | 4481 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4482 | { |
e3594fd1 | 4483 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4484 | |
96baa820 | 4485 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4486 | } |
4487 | ||
a790ad35 | 4488 | static void |
ae3bd431 | 4489 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4490 | { |
ae3bd431 | 4491 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4492 | |
4493 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4494 | } | |
4495 | ||
c906108c | 4496 | static void |
0a4f40a2 TT |
4497 | debug_to_terminal_info (struct target_ops *self, |
4498 | const char *arg, int from_tty) | |
c906108c | 4499 | { |
0a4f40a2 | 4500 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4501 | |
96baa820 | 4502 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4503 | from_tty); |
4504 | } | |
4505 | ||
c906108c | 4506 | static void |
71a9f134 | 4507 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4508 | { |
71a9f134 | 4509 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4510 | |
96baa820 | 4511 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4512 | } |
4513 | ||
c906108c | 4514 | static void |
2e97a79e | 4515 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4516 | { |
2e97a79e | 4517 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4518 | |
96baa820 | 4519 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4520 | ptid_get_pid (ptid)); |
c906108c SS |
4521 | } |
4522 | ||
77b06cd7 | 4523 | static int |
a863b201 | 4524 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4525 | { |
77b06cd7 TJB |
4526 | int retval; |
4527 | ||
a863b201 | 4528 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4529 | |
4530 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4531 | pid, retval); | |
c906108c | 4532 | |
77b06cd7 | 4533 | return retval; |
c906108c SS |
4534 | } |
4535 | ||
4536 | static int | |
973fc227 | 4537 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4538 | { |
c5aa993b | 4539 | int retval; |
c906108c | 4540 | |
973fc227 | 4541 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4542 | |
96baa820 | 4543 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4544 | pid, retval); |
c906108c SS |
4545 | |
4546 | return retval; | |
4547 | } | |
4548 | ||
77b06cd7 | 4549 | static int |
3ecc7da0 | 4550 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4551 | { |
77b06cd7 TJB |
4552 | int retval; |
4553 | ||
3ecc7da0 | 4554 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4555 | |
77b06cd7 TJB |
4556 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4557 | pid, retval); | |
4558 | ||
4559 | return retval; | |
c906108c SS |
4560 | } |
4561 | ||
4562 | static int | |
e98cf0cd | 4563 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4564 | { |
c5aa993b | 4565 | int retval; |
c906108c | 4566 | |
e98cf0cd | 4567 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4568 | |
96baa820 | 4569 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4570 | pid, retval); |
c906108c SS |
4571 | |
4572 | return retval; | |
4573 | } | |
4574 | ||
77b06cd7 | 4575 | static int |
ba025e51 | 4576 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4577 | { |
77b06cd7 TJB |
4578 | int retval; |
4579 | ||
ba025e51 | 4580 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4581 | |
77b06cd7 TJB |
4582 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4583 | pid, retval); | |
4584 | ||
4585 | return retval; | |
c906108c SS |
4586 | } |
4587 | ||
4588 | static int | |
758e29d2 | 4589 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4590 | { |
c5aa993b | 4591 | int retval; |
c906108c | 4592 | |
758e29d2 | 4593 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4594 | |
96baa820 | 4595 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4596 | pid, retval); |
c906108c SS |
4597 | |
4598 | return retval; | |
4599 | } | |
4600 | ||
c906108c | 4601 | static int |
d796e1d6 TT |
4602 | debug_to_has_exited (struct target_ops *self, |
4603 | int pid, int wait_status, int *exit_status) | |
c906108c | 4604 | { |
c5aa993b | 4605 | int has_exited; |
c906108c | 4606 | |
d796e1d6 TT |
4607 | has_exited = debug_target.to_has_exited (&debug_target, |
4608 | pid, wait_status, exit_status); | |
c906108c | 4609 | |
96baa820 | 4610 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4611 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4612 | |
4613 | return has_exited; | |
4614 | } | |
4615 | ||
c906108c | 4616 | static int |
da82bd6b | 4617 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4618 | { |
4619 | int retval; | |
4620 | ||
da82bd6b | 4621 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4622 | |
96baa820 | 4623 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4624 | |
4625 | return retval; | |
4626 | } | |
4627 | ||
c2250ad1 UW |
4628 | static struct gdbarch * |
4629 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4630 | { | |
4631 | struct gdbarch *retval; | |
4632 | ||
4633 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4634 | ||
3e43a32a MS |
4635 | fprintf_unfiltered (gdb_stdlog, |
4636 | "target_thread_architecture (%s) = %s [%s]\n", | |
4637 | target_pid_to_str (ptid), | |
4638 | host_address_to_string (retval), | |
c2250ad1 UW |
4639 | gdbarch_bfd_arch_info (retval)->printable_name); |
4640 | return retval; | |
4641 | } | |
4642 | ||
c906108c | 4643 | static void |
1eab8a48 | 4644 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4645 | { |
1eab8a48 | 4646 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4647 | |
94cc34af PA |
4648 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4649 | target_pid_to_str (ptid)); | |
c906108c SS |
4650 | } |
4651 | ||
96baa820 | 4652 | static void |
1aac633b | 4653 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4654 | struct ui_file *outbuf) |
96baa820 | 4655 | { |
1aac633b | 4656 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4657 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4658 | } | |
4659 | ||
c906108c | 4660 | static char * |
8dd27370 | 4661 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4662 | { |
c5aa993b | 4663 | char *exec_file; |
c906108c | 4664 | |
8dd27370 | 4665 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4666 | |
96baa820 | 4667 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4668 | pid, exec_file); |
c906108c SS |
4669 | |
4670 | return exec_file; | |
4671 | } | |
4672 | ||
c906108c | 4673 | static void |
fba45db2 | 4674 | setup_target_debug (void) |
c906108c SS |
4675 | { |
4676 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4677 | ||
4678 | current_target.to_open = debug_to_open; | |
c906108c | 4679 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4680 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4681 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4682 | current_target.to_files_info = debug_to_files_info; |
4683 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4684 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4685 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4686 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4687 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4688 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4689 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4690 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4691 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4692 | current_target.to_watchpoint_addr_within_range |
4693 | = debug_to_watchpoint_addr_within_range; | |
4694 | current_target.to_region_ok_for_hw_watchpoint | |
4695 | = debug_to_region_ok_for_hw_watchpoint; | |
4696 | current_target.to_can_accel_watchpoint_condition | |
4697 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4698 | current_target.to_terminal_init = debug_to_terminal_init; |
4699 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4700 | current_target.to_terminal_ours_for_output |
4701 | = debug_to_terminal_ours_for_output; | |
c906108c | 4702 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4703 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4704 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4705 | current_target.to_load = debug_to_load; |
c906108c | 4706 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4707 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4708 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4709 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4710 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4711 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4712 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4713 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4714 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4715 | current_target.to_stop = debug_to_stop; |
96baa820 | 4716 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4717 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4718 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4719 | } |
c906108c | 4720 | \f |
c5aa993b JM |
4721 | |
4722 | static char targ_desc[] = | |
3e43a32a MS |
4723 | "Names of targets and files being debugged.\nShows the entire \ |
4724 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4725 | core-file, and process, if any), as well as the symbol file name."; |
4726 | ||
a53f3625 TT |
4727 | static void |
4728 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4729 | { | |
4730 | error (_("\"monitor\" command not supported by this target.")); | |
4731 | } | |
4732 | ||
96baa820 JM |
4733 | static void |
4734 | do_monitor_command (char *cmd, | |
4735 | int from_tty) | |
4736 | { | |
96baa820 JM |
4737 | target_rcmd (cmd, gdb_stdtarg); |
4738 | } | |
4739 | ||
87680a14 JB |
4740 | /* Print the name of each layers of our target stack. */ |
4741 | ||
4742 | static void | |
4743 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4744 | { | |
4745 | struct target_ops *t; | |
4746 | ||
4747 | printf_filtered (_("The current target stack is:\n")); | |
4748 | ||
4749 | for (t = target_stack; t != NULL; t = t->beneath) | |
4750 | { | |
4751 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4752 | } | |
4753 | } | |
4754 | ||
c6ebd6cf VP |
4755 | /* Controls if async mode is permitted. */ |
4756 | int target_async_permitted = 0; | |
4757 | ||
4758 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4759 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4760 | static int target_async_permitted_1 = 0; |
4761 | ||
4762 | static void | |
9401a810 PA |
4763 | set_target_async_command (char *args, int from_tty, |
4764 | struct cmd_list_element *c) | |
c6ebd6cf | 4765 | { |
c35b1492 | 4766 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4767 | { |
4768 | target_async_permitted_1 = target_async_permitted; | |
4769 | error (_("Cannot change this setting while the inferior is running.")); | |
4770 | } | |
4771 | ||
4772 | target_async_permitted = target_async_permitted_1; | |
4773 | } | |
4774 | ||
4775 | static void | |
9401a810 PA |
4776 | show_target_async_command (struct ui_file *file, int from_tty, |
4777 | struct cmd_list_element *c, | |
4778 | const char *value) | |
c6ebd6cf | 4779 | { |
3e43a32a MS |
4780 | fprintf_filtered (file, |
4781 | _("Controlling the inferior in " | |
4782 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4783 | } |
4784 | ||
d914c394 SS |
4785 | /* Temporary copies of permission settings. */ |
4786 | ||
4787 | static int may_write_registers_1 = 1; | |
4788 | static int may_write_memory_1 = 1; | |
4789 | static int may_insert_breakpoints_1 = 1; | |
4790 | static int may_insert_tracepoints_1 = 1; | |
4791 | static int may_insert_fast_tracepoints_1 = 1; | |
4792 | static int may_stop_1 = 1; | |
4793 | ||
4794 | /* Make the user-set values match the real values again. */ | |
4795 | ||
4796 | void | |
4797 | update_target_permissions (void) | |
4798 | { | |
4799 | may_write_registers_1 = may_write_registers; | |
4800 | may_write_memory_1 = may_write_memory; | |
4801 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4802 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4803 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4804 | may_stop_1 = may_stop; | |
4805 | } | |
4806 | ||
4807 | /* The one function handles (most of) the permission flags in the same | |
4808 | way. */ | |
4809 | ||
4810 | static void | |
4811 | set_target_permissions (char *args, int from_tty, | |
4812 | struct cmd_list_element *c) | |
4813 | { | |
4814 | if (target_has_execution) | |
4815 | { | |
4816 | update_target_permissions (); | |
4817 | error (_("Cannot change this setting while the inferior is running.")); | |
4818 | } | |
4819 | ||
4820 | /* Make the real values match the user-changed values. */ | |
4821 | may_write_registers = may_write_registers_1; | |
4822 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4823 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4824 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4825 | may_stop = may_stop_1; | |
4826 | update_observer_mode (); | |
4827 | } | |
4828 | ||
4829 | /* Set memory write permission independently of observer mode. */ | |
4830 | ||
4831 | static void | |
4832 | set_write_memory_permission (char *args, int from_tty, | |
4833 | struct cmd_list_element *c) | |
4834 | { | |
4835 | /* Make the real values match the user-changed values. */ | |
4836 | may_write_memory = may_write_memory_1; | |
4837 | update_observer_mode (); | |
4838 | } | |
4839 | ||
4840 | ||
c906108c | 4841 | void |
fba45db2 | 4842 | initialize_targets (void) |
c906108c SS |
4843 | { |
4844 | init_dummy_target (); | |
4845 | push_target (&dummy_target); | |
4846 | ||
4847 | add_info ("target", target_info, targ_desc); | |
4848 | add_info ("files", target_info, targ_desc); | |
4849 | ||
ccce17b0 | 4850 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4851 | Set target debugging."), _("\ |
4852 | Show target debugging."), _("\ | |
333dabeb DJ |
4853 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4854 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4855 | command."), |
ccce17b0 YQ |
4856 | NULL, |
4857 | show_targetdebug, | |
4858 | &setdebuglist, &showdebuglist); | |
3a11626d | 4859 | |
2bc416ba | 4860 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4861 | &trust_readonly, _("\ |
4862 | Set mode for reading from readonly sections."), _("\ | |
4863 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4864 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4865 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4866 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4867 | NULL, |
920d2a44 | 4868 | show_trust_readonly, |
e707bbc2 | 4869 | &setlist, &showlist); |
96baa820 JM |
4870 | |
4871 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4872 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4873 | |
87680a14 JB |
4874 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4875 | _("Print the name of each layer of the internal target stack."), | |
4876 | &maintenanceprintlist); | |
4877 | ||
c6ebd6cf VP |
4878 | add_setshow_boolean_cmd ("target-async", no_class, |
4879 | &target_async_permitted_1, _("\ | |
4880 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4881 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4882 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
4883 | set_target_async_command, |
4884 | show_target_async_command, | |
c6ebd6cf VP |
4885 | &setlist, |
4886 | &showlist); | |
4887 | ||
d914c394 SS |
4888 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4889 | &may_write_registers_1, _("\ | |
4890 | Set permission to write into registers."), _("\ | |
4891 | Show permission to write into registers."), _("\ | |
4892 | When this permission is on, GDB may write into the target's registers.\n\ | |
4893 | Otherwise, any sort of write attempt will result in an error."), | |
4894 | set_target_permissions, NULL, | |
4895 | &setlist, &showlist); | |
4896 | ||
4897 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4898 | &may_write_memory_1, _("\ | |
4899 | Set permission to write into target memory."), _("\ | |
4900 | Show permission to write into target memory."), _("\ | |
4901 | When this permission is on, GDB may write into the target's memory.\n\ | |
4902 | Otherwise, any sort of write attempt will result in an error."), | |
4903 | set_write_memory_permission, NULL, | |
4904 | &setlist, &showlist); | |
4905 | ||
4906 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4907 | &may_insert_breakpoints_1, _("\ | |
4908 | Set permission to insert breakpoints in the target."), _("\ | |
4909 | Show permission to insert breakpoints in the target."), _("\ | |
4910 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4911 | Otherwise, any sort of insertion attempt will result in an error."), | |
4912 | set_target_permissions, NULL, | |
4913 | &setlist, &showlist); | |
4914 | ||
4915 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4916 | &may_insert_tracepoints_1, _("\ | |
4917 | Set permission to insert tracepoints in the target."), _("\ | |
4918 | Show permission to insert tracepoints in the target."), _("\ | |
4919 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4920 | Otherwise, any sort of insertion attempt will result in an error."), | |
4921 | set_target_permissions, NULL, | |
4922 | &setlist, &showlist); | |
4923 | ||
4924 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4925 | &may_insert_fast_tracepoints_1, _("\ | |
4926 | Set permission to insert fast tracepoints in the target."), _("\ | |
4927 | Show permission to insert fast tracepoints in the target."), _("\ | |
4928 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4929 | Otherwise, any sort of insertion attempt will result in an error."), | |
4930 | set_target_permissions, NULL, | |
4931 | &setlist, &showlist); | |
4932 | ||
4933 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4934 | &may_stop_1, _("\ | |
4935 | Set permission to interrupt or signal the target."), _("\ | |
4936 | Show permission to interrupt or signal the target."), _("\ | |
4937 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4938 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4939 | set_target_permissions, NULL, | |
4940 | &setlist, &showlist); | |
c906108c | 4941 | } |