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" |
8de71aab | 47 | #include "auxv.h" |
c906108c | 48 | |
a14ed312 | 49 | static void target_info (char *, int); |
c906108c | 50 | |
0a4f40a2 | 51 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 52 | |
5009afc5 AS |
53 | static int default_watchpoint_addr_within_range (struct target_ops *, |
54 | CORE_ADDR, CORE_ADDR, int); | |
55 | ||
31568a15 TT |
56 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
57 | CORE_ADDR, int); | |
e0d24f8d | 58 | |
a53f3625 TT |
59 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
60 | ||
4229b31d TT |
61 | static ptid_t default_get_ada_task_ptid (struct target_ops *self, |
62 | long lwp, long tid); | |
63 | ||
098dba18 TT |
64 | static int default_follow_fork (struct target_ops *self, int follow_child, |
65 | int detach_fork); | |
66 | ||
8d657035 TT |
67 | static void default_mourn_inferior (struct target_ops *self); |
68 | ||
58a5184e TT |
69 | static int default_search_memory (struct target_ops *ops, |
70 | CORE_ADDR start_addr, | |
71 | ULONGEST search_space_len, | |
72 | const gdb_byte *pattern, | |
73 | ULONGEST pattern_len, | |
74 | CORE_ADDR *found_addrp); | |
75 | ||
c25c4a8b | 76 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 77 | |
555bbdeb TT |
78 | static int return_zero (struct target_ops *); |
79 | ||
80 | static int return_zero_has_execution (struct target_ops *, ptid_t); | |
c906108c | 81 | |
a14ed312 | 82 | static void target_command (char *, int); |
c906108c | 83 | |
a14ed312 | 84 | static struct target_ops *find_default_run_target (char *); |
c906108c | 85 | |
c2250ad1 UW |
86 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
87 | ptid_t ptid); | |
88 | ||
0b5a2719 TT |
89 | static int dummy_find_memory_regions (struct target_ops *self, |
90 | find_memory_region_ftype ignore1, | |
91 | void *ignore2); | |
92 | ||
16f796b1 TT |
93 | static char *dummy_make_corefile_notes (struct target_ops *self, |
94 | bfd *ignore1, int *ignore2); | |
95 | ||
770234d3 TT |
96 | static char *default_pid_to_str (struct target_ops *ops, ptid_t ptid); |
97 | ||
fe31bf5b TT |
98 | static enum exec_direction_kind default_execution_direction |
99 | (struct target_ops *self); | |
100 | ||
c0eca49f TT |
101 | static CORE_ADDR default_target_decr_pc_after_break (struct target_ops *ops, |
102 | struct gdbarch *gdbarch); | |
103 | ||
1101cb7b TT |
104 | #include "target-delegates.c" |
105 | ||
a14ed312 | 106 | static void init_dummy_target (void); |
c906108c | 107 | |
aa869812 AC |
108 | static struct target_ops debug_target; |
109 | ||
a14ed312 | 110 | static void debug_to_open (char *, int); |
c906108c | 111 | |
f32dbf8c MM |
112 | static void debug_to_prepare_to_store (struct target_ops *self, |
113 | struct regcache *); | |
c906108c | 114 | |
a14ed312 | 115 | static void debug_to_files_info (struct target_ops *); |
c906108c | 116 | |
3db08215 | 117 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 118 | struct bp_target_info *); |
c906108c | 119 | |
3db08215 | 120 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 121 | struct bp_target_info *); |
c906108c | 122 | |
5461485a TT |
123 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
124 | int, int, int); | |
ccaa32c7 | 125 | |
23a26771 TT |
126 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
127 | struct gdbarch *, | |
a6d9a66e | 128 | struct bp_target_info *); |
ccaa32c7 | 129 | |
a64dc96c TT |
130 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
131 | struct gdbarch *, | |
a6d9a66e | 132 | struct bp_target_info *); |
ccaa32c7 | 133 | |
7bb99c53 TT |
134 | static int debug_to_insert_watchpoint (struct target_ops *self, |
135 | CORE_ADDR, int, int, | |
0cf6dd15 | 136 | struct expression *); |
ccaa32c7 | 137 | |
11b5219a TT |
138 | static int debug_to_remove_watchpoint (struct target_ops *self, |
139 | CORE_ADDR, int, int, | |
0cf6dd15 | 140 | struct expression *); |
ccaa32c7 | 141 | |
4aa7a7f5 | 142 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 143 | |
5009afc5 AS |
144 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
145 | CORE_ADDR, CORE_ADDR, int); | |
146 | ||
31568a15 TT |
147 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
148 | CORE_ADDR, int); | |
e0d24f8d | 149 | |
c3a5ff89 TT |
150 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
151 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
152 | struct expression *); |
153 | ||
c42bf286 | 154 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 155 | |
d2f640d4 | 156 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 157 | |
2e1e1a19 | 158 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 159 | |
ae3bd431 | 160 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 161 | |
e3594fd1 | 162 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 163 | |
71a9f134 | 164 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 165 | |
da82bd6b | 166 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 167 | |
1eab8a48 | 168 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 169 | |
c906108c | 170 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 171 | array; the current index into the array; the allocated size of the |
c906108c SS |
172 | array. */ |
173 | struct target_ops **target_structs; | |
174 | unsigned target_struct_size; | |
c906108c SS |
175 | unsigned target_struct_allocsize; |
176 | #define DEFAULT_ALLOCSIZE 10 | |
177 | ||
178 | /* The initial current target, so that there is always a semi-valid | |
179 | current target. */ | |
180 | ||
181 | static struct target_ops dummy_target; | |
182 | ||
183 | /* Top of target stack. */ | |
184 | ||
258b763a | 185 | static struct target_ops *target_stack; |
c906108c SS |
186 | |
187 | /* The target structure we are currently using to talk to a process | |
188 | or file or whatever "inferior" we have. */ | |
189 | ||
190 | struct target_ops current_target; | |
191 | ||
192 | /* Command list for target. */ | |
193 | ||
194 | static struct cmd_list_element *targetlist = NULL; | |
195 | ||
cf7a04e8 DJ |
196 | /* Nonzero if we should trust readonly sections from the |
197 | executable when reading memory. */ | |
198 | ||
199 | static int trust_readonly = 0; | |
200 | ||
8defab1a DJ |
201 | /* Nonzero if we should show true memory content including |
202 | memory breakpoint inserted by gdb. */ | |
203 | ||
204 | static int show_memory_breakpoints = 0; | |
205 | ||
d914c394 SS |
206 | /* These globals control whether GDB attempts to perform these |
207 | operations; they are useful for targets that need to prevent | |
208 | inadvertant disruption, such as in non-stop mode. */ | |
209 | ||
210 | int may_write_registers = 1; | |
211 | ||
212 | int may_write_memory = 1; | |
213 | ||
214 | int may_insert_breakpoints = 1; | |
215 | ||
216 | int may_insert_tracepoints = 1; | |
217 | ||
218 | int may_insert_fast_tracepoints = 1; | |
219 | ||
220 | int may_stop = 1; | |
221 | ||
c906108c SS |
222 | /* Non-zero if we want to see trace of target level stuff. */ |
223 | ||
ccce17b0 | 224 | static unsigned int targetdebug = 0; |
920d2a44 AC |
225 | static void |
226 | show_targetdebug (struct ui_file *file, int from_tty, | |
227 | struct cmd_list_element *c, const char *value) | |
228 | { | |
229 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
230 | } | |
c906108c | 231 | |
a14ed312 | 232 | static void setup_target_debug (void); |
c906108c | 233 | |
c906108c SS |
234 | /* The user just typed 'target' without the name of a target. */ |
235 | ||
c906108c | 236 | static void |
fba45db2 | 237 | target_command (char *arg, int from_tty) |
c906108c SS |
238 | { |
239 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
240 | gdb_stdout); | |
241 | } | |
242 | ||
c35b1492 PA |
243 | /* Default target_has_* methods for process_stratum targets. */ |
244 | ||
245 | int | |
246 | default_child_has_all_memory (struct target_ops *ops) | |
247 | { | |
248 | /* If no inferior selected, then we can't read memory here. */ | |
249 | if (ptid_equal (inferior_ptid, null_ptid)) | |
250 | return 0; | |
251 | ||
252 | return 1; | |
253 | } | |
254 | ||
255 | int | |
256 | default_child_has_memory (struct target_ops *ops) | |
257 | { | |
258 | /* If no inferior selected, then we can't read memory here. */ | |
259 | if (ptid_equal (inferior_ptid, null_ptid)) | |
260 | return 0; | |
261 | ||
262 | return 1; | |
263 | } | |
264 | ||
265 | int | |
266 | default_child_has_stack (struct target_ops *ops) | |
267 | { | |
268 | /* If no inferior selected, there's no stack. */ | |
269 | if (ptid_equal (inferior_ptid, null_ptid)) | |
270 | return 0; | |
271 | ||
272 | return 1; | |
273 | } | |
274 | ||
275 | int | |
276 | default_child_has_registers (struct target_ops *ops) | |
277 | { | |
278 | /* Can't read registers from no inferior. */ | |
279 | if (ptid_equal (inferior_ptid, null_ptid)) | |
280 | return 0; | |
281 | ||
282 | return 1; | |
283 | } | |
284 | ||
285 | int | |
aeaec162 | 286 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
287 | { |
288 | /* If there's no thread selected, then we can't make it run through | |
289 | hoops. */ | |
aeaec162 | 290 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
291 | return 0; |
292 | ||
293 | return 1; | |
294 | } | |
295 | ||
296 | ||
297 | int | |
298 | target_has_all_memory_1 (void) | |
299 | { | |
300 | struct target_ops *t; | |
301 | ||
302 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
303 | if (t->to_has_all_memory (t)) | |
304 | return 1; | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | int | |
310 | target_has_memory_1 (void) | |
311 | { | |
312 | struct target_ops *t; | |
313 | ||
314 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
315 | if (t->to_has_memory (t)) | |
316 | return 1; | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
321 | int | |
322 | target_has_stack_1 (void) | |
323 | { | |
324 | struct target_ops *t; | |
325 | ||
326 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
327 | if (t->to_has_stack (t)) | |
328 | return 1; | |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
333 | int | |
334 | target_has_registers_1 (void) | |
335 | { | |
336 | struct target_ops *t; | |
337 | ||
338 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
339 | if (t->to_has_registers (t)) | |
340 | return 1; | |
341 | ||
342 | return 0; | |
343 | } | |
344 | ||
345 | int | |
aeaec162 | 346 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
347 | { |
348 | struct target_ops *t; | |
349 | ||
350 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 351 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
352 | return 1; |
353 | ||
354 | return 0; | |
355 | } | |
356 | ||
aeaec162 TT |
357 | int |
358 | target_has_execution_current (void) | |
359 | { | |
360 | return target_has_execution_1 (inferior_ptid); | |
361 | } | |
362 | ||
c22a2b88 TT |
363 | /* Complete initialization of T. This ensures that various fields in |
364 | T are set, if needed by the target implementation. */ | |
c906108c SS |
365 | |
366 | void | |
c22a2b88 | 367 | complete_target_initialization (struct target_ops *t) |
c906108c | 368 | { |
0088c768 | 369 | /* Provide default values for all "must have" methods. */ |
0088c768 | 370 | |
c35b1492 | 371 | if (t->to_has_all_memory == NULL) |
555bbdeb | 372 | t->to_has_all_memory = return_zero; |
c35b1492 PA |
373 | |
374 | if (t->to_has_memory == NULL) | |
555bbdeb | 375 | t->to_has_memory = return_zero; |
c35b1492 PA |
376 | |
377 | if (t->to_has_stack == NULL) | |
555bbdeb | 378 | t->to_has_stack = return_zero; |
c35b1492 PA |
379 | |
380 | if (t->to_has_registers == NULL) | |
555bbdeb | 381 | t->to_has_registers = return_zero; |
c35b1492 PA |
382 | |
383 | if (t->to_has_execution == NULL) | |
555bbdeb | 384 | t->to_has_execution = return_zero_has_execution; |
1101cb7b | 385 | |
b3ccfe11 TT |
386 | /* These methods can be called on an unpushed target and so require |
387 | a default implementation if the target might plausibly be the | |
388 | default run target. */ | |
389 | gdb_assert (t->to_can_run == NULL || (t->to_can_async_p != NULL | |
390 | && t->to_supports_non_stop != NULL)); | |
391 | ||
1101cb7b | 392 | install_delegators (t); |
c22a2b88 TT |
393 | } |
394 | ||
395 | /* Add possible target architecture T to the list and add a new | |
396 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
397 | completer if not NULL. */ | |
398 | ||
399 | void | |
400 | add_target_with_completer (struct target_ops *t, | |
401 | completer_ftype *completer) | |
402 | { | |
403 | struct cmd_list_element *c; | |
404 | ||
405 | complete_target_initialization (t); | |
c35b1492 | 406 | |
c906108c SS |
407 | if (!target_structs) |
408 | { | |
409 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
410 | target_structs = (struct target_ops **) xmalloc | |
411 | (target_struct_allocsize * sizeof (*target_structs)); | |
412 | } | |
413 | if (target_struct_size >= target_struct_allocsize) | |
414 | { | |
415 | target_struct_allocsize *= 2; | |
416 | target_structs = (struct target_ops **) | |
c5aa993b JM |
417 | xrealloc ((char *) target_structs, |
418 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
419 | } |
420 | target_structs[target_struct_size++] = t; | |
c906108c SS |
421 | |
422 | if (targetlist == NULL) | |
1bedd215 AC |
423 | add_prefix_cmd ("target", class_run, target_command, _("\ |
424 | Connect to a target machine or process.\n\ | |
c906108c SS |
425 | The first argument is the type or protocol of the target machine.\n\ |
426 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
427 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 428 | `help target ' followed by the protocol name."), |
c906108c | 429 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
430 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
431 | &targetlist); | |
432 | if (completer != NULL) | |
433 | set_cmd_completer (c, completer); | |
434 | } | |
435 | ||
436 | /* Add a possible target architecture to the list. */ | |
437 | ||
438 | void | |
439 | add_target (struct target_ops *t) | |
440 | { | |
441 | add_target_with_completer (t, NULL); | |
c906108c SS |
442 | } |
443 | ||
b48d48eb MM |
444 | /* See target.h. */ |
445 | ||
446 | void | |
447 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
448 | { | |
449 | struct cmd_list_element *c; | |
450 | char *alt; | |
451 | ||
452 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
453 | see PR cli/15104. */ | |
454 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
455 | alt = xstrprintf ("target %s", t->to_shortname); | |
456 | deprecate_cmd (c, alt); | |
457 | } | |
458 | ||
c906108c SS |
459 | /* Stub functions */ |
460 | ||
7d85a9c0 JB |
461 | void |
462 | target_kill (void) | |
463 | { | |
423a4807 TT |
464 | if (targetdebug) |
465 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
7d85a9c0 | 466 | |
423a4807 | 467 | current_target.to_kill (¤t_target); |
7d85a9c0 JB |
468 | } |
469 | ||
11cf8741 JM |
470 | void |
471 | target_load (char *arg, int from_tty) | |
472 | { | |
4e5d721f | 473 | target_dcache_invalidate (); |
71a9f134 | 474 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
475 | } |
476 | ||
d9d2d8b6 PA |
477 | void |
478 | target_terminal_inferior (void) | |
479 | { | |
480 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 481 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
482 | this point the target is not async yet. However, if sync_execution |
483 | is not set, we know it will become async prior to resume. */ | |
484 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
485 | return; |
486 | ||
487 | /* If GDB is resuming the inferior in the foreground, install | |
488 | inferior's terminal modes. */ | |
d2f640d4 | 489 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 490 | } |
136d6dae | 491 | |
c906108c | 492 | static void |
fba45db2 | 493 | tcomplain (void) |
c906108c | 494 | { |
8a3fe4f8 | 495 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
496 | current_target.to_shortname); |
497 | } | |
498 | ||
499 | void | |
fba45db2 | 500 | noprocess (void) |
c906108c | 501 | { |
8a3fe4f8 | 502 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
503 | } |
504 | ||
c906108c | 505 | static void |
0a4f40a2 | 506 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 507 | { |
a3f17187 | 508 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
509 | } |
510 | ||
0ef643c8 JB |
511 | /* A default implementation for the to_get_ada_task_ptid target method. |
512 | ||
513 | This function builds the PTID by using both LWP and TID as part of | |
514 | the PTID lwp and tid elements. The pid used is the pid of the | |
515 | inferior_ptid. */ | |
516 | ||
2c0b251b | 517 | static ptid_t |
1e6b91a4 | 518 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
519 | { |
520 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
521 | } | |
522 | ||
32231432 | 523 | static enum exec_direction_kind |
4c612759 | 524 | default_execution_direction (struct target_ops *self) |
32231432 PA |
525 | { |
526 | if (!target_can_execute_reverse) | |
527 | return EXEC_FORWARD; | |
528 | else if (!target_can_async_p ()) | |
529 | return EXEC_FORWARD; | |
530 | else | |
531 | gdb_assert_not_reached ("\ | |
532 | to_execution_direction must be implemented for reverse async"); | |
533 | } | |
534 | ||
7998dfc3 AC |
535 | /* Go through the target stack from top to bottom, copying over zero |
536 | entries in current_target, then filling in still empty entries. In | |
537 | effect, we are doing class inheritance through the pushed target | |
538 | vectors. | |
539 | ||
540 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
541 | is currently implemented, is that it discards any knowledge of | |
542 | which target an inherited method originally belonged to. | |
543 | Consequently, new new target methods should instead explicitly and | |
544 | locally search the target stack for the target that can handle the | |
545 | request. */ | |
c906108c SS |
546 | |
547 | static void | |
7998dfc3 | 548 | update_current_target (void) |
c906108c | 549 | { |
7998dfc3 AC |
550 | struct target_ops *t; |
551 | ||
08d8bcd7 | 552 | /* First, reset current's contents. */ |
7998dfc3 AC |
553 | memset (¤t_target, 0, sizeof (current_target)); |
554 | ||
1101cb7b TT |
555 | /* Install the delegators. */ |
556 | install_delegators (¤t_target); | |
557 | ||
be4ddd36 TT |
558 | current_target.to_stratum = target_stack->to_stratum; |
559 | ||
7998dfc3 AC |
560 | #define INHERIT(FIELD, TARGET) \ |
561 | if (!current_target.FIELD) \ | |
562 | current_target.FIELD = (TARGET)->FIELD | |
563 | ||
be4ddd36 TT |
564 | /* Do not add any new INHERITs here. Instead, use the delegation |
565 | mechanism provided by make-target-delegates. */ | |
7998dfc3 AC |
566 | for (t = target_stack; t; t = t->beneath) |
567 | { | |
568 | INHERIT (to_shortname, t); | |
569 | INHERIT (to_longname, t); | |
dc177b7a | 570 | INHERIT (to_attach_no_wait, t); |
74174d2e | 571 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 572 | INHERIT (to_have_continuable_watchpoint, t); |
7998dfc3 | 573 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
574 | } |
575 | #undef INHERIT | |
576 | ||
7998dfc3 AC |
577 | /* Finally, position the target-stack beneath the squashed |
578 | "current_target". That way code looking for a non-inherited | |
579 | target method can quickly and simply find it. */ | |
580 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
581 | |
582 | if (targetdebug) | |
583 | setup_target_debug (); | |
c906108c SS |
584 | } |
585 | ||
586 | /* Push a new target type into the stack of the existing target accessors, | |
587 | possibly superseding some of the existing accessors. | |
588 | ||
c906108c SS |
589 | Rather than allow an empty stack, we always have the dummy target at |
590 | the bottom stratum, so we can call the function vectors without | |
591 | checking them. */ | |
592 | ||
b26a4dcb | 593 | void |
fba45db2 | 594 | push_target (struct target_ops *t) |
c906108c | 595 | { |
258b763a | 596 | struct target_ops **cur; |
c906108c SS |
597 | |
598 | /* Check magic number. If wrong, it probably means someone changed | |
599 | the struct definition, but not all the places that initialize one. */ | |
600 | if (t->to_magic != OPS_MAGIC) | |
601 | { | |
c5aa993b JM |
602 | fprintf_unfiltered (gdb_stderr, |
603 | "Magic number of %s target struct wrong\n", | |
604 | t->to_shortname); | |
3e43a32a MS |
605 | internal_error (__FILE__, __LINE__, |
606 | _("failed internal consistency check")); | |
c906108c SS |
607 | } |
608 | ||
258b763a AC |
609 | /* Find the proper stratum to install this target in. */ |
610 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 611 | { |
258b763a | 612 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
613 | break; |
614 | } | |
615 | ||
258b763a | 616 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 617 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
618 | targets to CUR, and not just those at this stratum level. */ |
619 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
620 | { | |
621 | /* There's already something at this stratum level. Close it, | |
622 | and un-hook it from the stack. */ | |
623 | struct target_ops *tmp = (*cur); | |
5d502164 | 624 | |
258b763a AC |
625 | (*cur) = (*cur)->beneath; |
626 | tmp->beneath = NULL; | |
460014f5 | 627 | target_close (tmp); |
258b763a | 628 | } |
c906108c SS |
629 | |
630 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
631 | t->beneath = (*cur); |
632 | (*cur) = t; | |
c906108c SS |
633 | |
634 | update_current_target (); | |
c906108c SS |
635 | } |
636 | ||
2bc416ba | 637 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
638 | Return how many times it was removed (0 or 1). */ |
639 | ||
640 | int | |
fba45db2 | 641 | unpush_target (struct target_ops *t) |
c906108c | 642 | { |
258b763a AC |
643 | struct target_ops **cur; |
644 | struct target_ops *tmp; | |
c906108c | 645 | |
c8d104ad PA |
646 | if (t->to_stratum == dummy_stratum) |
647 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 648 | _("Attempt to unpush the dummy target")); |
c8d104ad | 649 | |
c906108c | 650 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 651 | can only occur once in the target stack. */ |
c906108c | 652 | |
258b763a AC |
653 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
654 | { | |
655 | if ((*cur) == t) | |
656 | break; | |
657 | } | |
c906108c | 658 | |
305436e0 PA |
659 | /* If we don't find target_ops, quit. Only open targets should be |
660 | closed. */ | |
258b763a | 661 | if ((*cur) == NULL) |
305436e0 | 662 | return 0; |
5269965e | 663 | |
c378eb4e | 664 | /* Unchain the target. */ |
258b763a AC |
665 | tmp = (*cur); |
666 | (*cur) = (*cur)->beneath; | |
667 | tmp->beneath = NULL; | |
c906108c SS |
668 | |
669 | update_current_target (); | |
c906108c | 670 | |
305436e0 PA |
671 | /* Finally close the target. Note we do this after unchaining, so |
672 | any target method calls from within the target_close | |
673 | implementation don't end up in T anymore. */ | |
460014f5 | 674 | target_close (t); |
305436e0 | 675 | |
c906108c SS |
676 | return 1; |
677 | } | |
678 | ||
aa76d38d | 679 | void |
460014f5 | 680 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 681 | { |
87ab71f0 | 682 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 683 | { |
aa76d38d PA |
684 | if (!unpush_target (target_stack)) |
685 | { | |
686 | fprintf_unfiltered (gdb_stderr, | |
687 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 688 | target_stack->to_shortname); |
aa76d38d PA |
689 | internal_error (__FILE__, __LINE__, |
690 | _("failed internal consistency check")); | |
691 | break; | |
692 | } | |
693 | } | |
694 | } | |
695 | ||
87ab71f0 | 696 | void |
460014f5 | 697 | pop_all_targets (void) |
87ab71f0 | 698 | { |
460014f5 | 699 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
700 | } |
701 | ||
c0edd9ed JK |
702 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
703 | ||
704 | int | |
705 | target_is_pushed (struct target_ops *t) | |
706 | { | |
707 | struct target_ops **cur; | |
708 | ||
709 | /* Check magic number. If wrong, it probably means someone changed | |
710 | the struct definition, but not all the places that initialize one. */ | |
711 | if (t->to_magic != OPS_MAGIC) | |
712 | { | |
713 | fprintf_unfiltered (gdb_stderr, | |
714 | "Magic number of %s target struct wrong\n", | |
715 | t->to_shortname); | |
3e43a32a MS |
716 | internal_error (__FILE__, __LINE__, |
717 | _("failed internal consistency check")); | |
c0edd9ed JK |
718 | } |
719 | ||
720 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
721 | if (*cur == t) | |
722 | return 1; | |
723 | ||
724 | return 0; | |
725 | } | |
726 | ||
72f5cf0e | 727 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
728 | current thread's thread-local storage with offset OFFSET. */ |
729 | CORE_ADDR | |
730 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
731 | { | |
732 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
733 | struct target_ops *target; |
734 | ||
735 | for (target = current_target.beneath; | |
736 | target != NULL; | |
737 | target = target->beneath) | |
738 | { | |
739 | if (target->to_get_thread_local_address != NULL) | |
740 | break; | |
741 | } | |
9e35dae4 | 742 | |
117de6a9 | 743 | if (target != NULL |
f5656ead | 744 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
745 | { |
746 | ptid_t ptid = inferior_ptid; | |
747 | volatile struct gdb_exception ex; | |
748 | ||
749 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
750 | { | |
751 | CORE_ADDR lm_addr; | |
752 | ||
753 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 754 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
755 | objfile); |
756 | /* If it's 0, throw the appropriate exception. */ | |
757 | if (lm_addr == 0) | |
758 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
759 | _("TLS load module not found")); | |
760 | ||
3e43a32a MS |
761 | addr = target->to_get_thread_local_address (target, ptid, |
762 | lm_addr, offset); | |
9e35dae4 DJ |
763 | } |
764 | /* If an error occurred, print TLS related messages here. Otherwise, | |
765 | throw the error to some higher catcher. */ | |
766 | if (ex.reason < 0) | |
767 | { | |
768 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
769 | ||
770 | switch (ex.error) | |
771 | { | |
772 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
773 | error (_("Cannot find thread-local variables " |
774 | "in this thread library.")); | |
9e35dae4 DJ |
775 | break; |
776 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
777 | if (objfile_is_library) | |
778 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 779 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
780 | else |
781 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 782 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
783 | break; |
784 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
785 | if (objfile_is_library) | |
786 | error (_("The inferior has not yet allocated storage for" | |
787 | " thread-local variables in\n" | |
788 | "the shared library `%s'\n" | |
789 | "for %s"), | |
4262abfb | 790 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
791 | else |
792 | error (_("The inferior has not yet allocated storage for" | |
793 | " thread-local variables in\n" | |
794 | "the executable `%s'\n" | |
795 | "for %s"), | |
4262abfb | 796 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
797 | break; |
798 | case TLS_GENERIC_ERROR: | |
799 | if (objfile_is_library) | |
800 | error (_("Cannot find thread-local storage for %s, " | |
801 | "shared library %s:\n%s"), | |
802 | target_pid_to_str (ptid), | |
4262abfb | 803 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
804 | else |
805 | error (_("Cannot find thread-local storage for %s, " | |
806 | "executable file %s:\n%s"), | |
807 | target_pid_to_str (ptid), | |
4262abfb | 808 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
809 | break; |
810 | default: | |
811 | throw_exception (ex); | |
812 | break; | |
813 | } | |
814 | } | |
815 | } | |
816 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
817 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
818 | else | |
819 | error (_("Cannot find thread-local variables on this target")); | |
820 | ||
821 | return addr; | |
822 | } | |
823 | ||
6be7b56e | 824 | const char * |
01cb8804 | 825 | target_xfer_status_to_string (enum target_xfer_status status) |
6be7b56e PA |
826 | { |
827 | #define CASE(X) case X: return #X | |
01cb8804 | 828 | switch (status) |
6be7b56e PA |
829 | { |
830 | CASE(TARGET_XFER_E_IO); | |
bc113b4e | 831 | CASE(TARGET_XFER_UNAVAILABLE); |
6be7b56e PA |
832 | default: |
833 | return "<unknown>"; | |
834 | } | |
835 | #undef CASE | |
836 | }; | |
837 | ||
838 | ||
c906108c SS |
839 | #undef MIN |
840 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
841 | ||
842 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
843 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
844 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
845 | is responsible for freeing it. Return the number of bytes successfully | |
846 | read. */ | |
847 | ||
848 | int | |
fba45db2 | 849 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 850 | { |
c2e8b827 | 851 | int tlen, offset, i; |
1b0ba102 | 852 | gdb_byte buf[4]; |
c906108c SS |
853 | int errcode = 0; |
854 | char *buffer; | |
855 | int buffer_allocated; | |
856 | char *bufptr; | |
857 | unsigned int nbytes_read = 0; | |
858 | ||
6217bf3e MS |
859 | gdb_assert (string); |
860 | ||
c906108c SS |
861 | /* Small for testing. */ |
862 | buffer_allocated = 4; | |
863 | buffer = xmalloc (buffer_allocated); | |
864 | bufptr = buffer; | |
865 | ||
c906108c SS |
866 | while (len > 0) |
867 | { | |
868 | tlen = MIN (len, 4 - (memaddr & 3)); | |
869 | offset = memaddr & 3; | |
870 | ||
1b0ba102 | 871 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
872 | if (errcode != 0) |
873 | { | |
874 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 875 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
876 | a single byte. */ |
877 | tlen = 1; | |
878 | offset = 0; | |
b8eb5af0 | 879 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
880 | if (errcode != 0) |
881 | goto done; | |
882 | } | |
883 | ||
884 | if (bufptr - buffer + tlen > buffer_allocated) | |
885 | { | |
886 | unsigned int bytes; | |
5d502164 | 887 | |
c906108c SS |
888 | bytes = bufptr - buffer; |
889 | buffer_allocated *= 2; | |
890 | buffer = xrealloc (buffer, buffer_allocated); | |
891 | bufptr = buffer + bytes; | |
892 | } | |
893 | ||
894 | for (i = 0; i < tlen; i++) | |
895 | { | |
896 | *bufptr++ = buf[i + offset]; | |
897 | if (buf[i + offset] == '\000') | |
898 | { | |
899 | nbytes_read += i + 1; | |
900 | goto done; | |
901 | } | |
902 | } | |
903 | ||
904 | memaddr += tlen; | |
905 | len -= tlen; | |
906 | nbytes_read += tlen; | |
907 | } | |
c5aa993b | 908 | done: |
6217bf3e | 909 | *string = buffer; |
c906108c SS |
910 | if (errnop != NULL) |
911 | *errnop = errcode; | |
c906108c SS |
912 | return nbytes_read; |
913 | } | |
914 | ||
07b82ea5 PA |
915 | struct target_section_table * |
916 | target_get_section_table (struct target_ops *target) | |
917 | { | |
07b82ea5 PA |
918 | if (targetdebug) |
919 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
920 | ||
7e35c012 | 921 | return (*target->to_get_section_table) (target); |
07b82ea5 PA |
922 | } |
923 | ||
8db32d44 | 924 | /* Find a section containing ADDR. */ |
07b82ea5 | 925 | |
0542c86d | 926 | struct target_section * |
8db32d44 AC |
927 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
928 | { | |
07b82ea5 | 929 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 930 | struct target_section *secp; |
07b82ea5 PA |
931 | |
932 | if (table == NULL) | |
933 | return NULL; | |
934 | ||
935 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
936 | { |
937 | if (addr >= secp->addr && addr < secp->endaddr) | |
938 | return secp; | |
939 | } | |
940 | return NULL; | |
941 | } | |
942 | ||
9f713294 YQ |
943 | /* Read memory from more than one valid target. A core file, for |
944 | instance, could have some of memory but delegate other bits to | |
945 | the target below it. So, we must manually try all targets. */ | |
946 | ||
9b409511 | 947 | static enum target_xfer_status |
17fde6d0 | 948 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
949 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
950 | ULONGEST *xfered_len) | |
9f713294 | 951 | { |
9b409511 | 952 | enum target_xfer_status res; |
9f713294 YQ |
953 | |
954 | do | |
955 | { | |
956 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
957 | readbuf, writebuf, memaddr, len, |
958 | xfered_len); | |
959 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
960 | break; |
961 | ||
633785ff | 962 | /* Stop if the target reports that the memory is not available. */ |
bc113b4e | 963 | if (res == TARGET_XFER_UNAVAILABLE) |
633785ff MM |
964 | break; |
965 | ||
9f713294 YQ |
966 | /* We want to continue past core files to executables, but not |
967 | past a running target's memory. */ | |
968 | if (ops->to_has_all_memory (ops)) | |
969 | break; | |
970 | ||
971 | ops = ops->beneath; | |
972 | } | |
973 | while (ops != NULL); | |
974 | ||
0f26cec1 PA |
975 | /* The cache works at the raw memory level. Make sure the cache |
976 | gets updated with raw contents no matter what kind of memory | |
977 | object was originally being written. Note we do write-through | |
978 | first, so that if it fails, we don't write to the cache contents | |
979 | that never made it to the target. */ | |
980 | if (writebuf != NULL | |
981 | && !ptid_equal (inferior_ptid, null_ptid) | |
982 | && target_dcache_init_p () | |
983 | && (stack_cache_enabled_p () || code_cache_enabled_p ())) | |
984 | { | |
985 | DCACHE *dcache = target_dcache_get (); | |
986 | ||
987 | /* Note that writing to an area of memory which wasn't present | |
988 | in the cache doesn't cause it to be loaded in. */ | |
989 | dcache_update (dcache, res, memaddr, writebuf, *xfered_len); | |
990 | } | |
991 | ||
9f713294 YQ |
992 | return res; |
993 | } | |
994 | ||
7f79c47e DE |
995 | /* Perform a partial memory transfer. |
996 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 997 | |
9b409511 | 998 | static enum target_xfer_status |
f0ba3972 | 999 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1000 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1001 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1002 | { |
9b409511 | 1003 | enum target_xfer_status res; |
cf7a04e8 DJ |
1004 | int reg_len; |
1005 | struct mem_region *region; | |
4e5d721f | 1006 | struct inferior *inf; |
cf7a04e8 | 1007 | |
07b82ea5 PA |
1008 | /* For accesses to unmapped overlay sections, read directly from |
1009 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1010 | if (readbuf != NULL && overlay_debugging) | |
1011 | { | |
1012 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1013 | |
07b82ea5 PA |
1014 | if (pc_in_unmapped_range (memaddr, section)) |
1015 | { | |
1016 | struct target_section_table *table | |
1017 | = target_get_section_table (ops); | |
1018 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1019 | |
07b82ea5 PA |
1020 | memaddr = overlay_mapped_address (memaddr, section); |
1021 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1022 | memaddr, len, xfered_len, |
07b82ea5 PA |
1023 | table->sections, |
1024 | table->sections_end, | |
1025 | section_name); | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1030 | if (readbuf != NULL && trust_readonly) |
1031 | { | |
0542c86d | 1032 | struct target_section *secp; |
07b82ea5 | 1033 | struct target_section_table *table; |
cf7a04e8 DJ |
1034 | |
1035 | secp = target_section_by_addr (ops, memaddr); | |
1036 | if (secp != NULL | |
2b2848e2 DE |
1037 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1038 | secp->the_bfd_section) | |
cf7a04e8 | 1039 | & SEC_READONLY)) |
07b82ea5 PA |
1040 | { |
1041 | table = target_get_section_table (ops); | |
1042 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1043 | memaddr, len, xfered_len, |
07b82ea5 PA |
1044 | table->sections, |
1045 | table->sections_end, | |
1046 | NULL); | |
1047 | } | |
98646950 UW |
1048 | } |
1049 | ||
cf7a04e8 DJ |
1050 | /* Try GDB's internal data cache. */ |
1051 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1052 | /* region->hi == 0 means there's no upper bound. */ |
1053 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1054 | reg_len = len; |
1055 | else | |
1056 | reg_len = region->hi - memaddr; | |
1057 | ||
1058 | switch (region->attrib.mode) | |
1059 | { | |
1060 | case MEM_RO: | |
1061 | if (writebuf != NULL) | |
2ed4b548 | 1062 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1063 | break; |
1064 | ||
1065 | case MEM_WO: | |
1066 | if (readbuf != NULL) | |
2ed4b548 | 1067 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1068 | break; |
a76d924d DJ |
1069 | |
1070 | case MEM_FLASH: | |
1071 | /* We only support writing to flash during "load" for now. */ | |
1072 | if (writebuf != NULL) | |
1073 | error (_("Writing to flash memory forbidden in this context")); | |
1074 | break; | |
4b5752d0 VP |
1075 | |
1076 | case MEM_NONE: | |
2ed4b548 | 1077 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1078 | } |
1079 | ||
6c95b8df PA |
1080 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1081 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1082 | else | |
1083 | inf = NULL; | |
4e5d721f DE |
1084 | |
1085 | if (inf != NULL | |
0f26cec1 | 1086 | && readbuf != NULL |
2f4d8875 PA |
1087 | /* The dcache reads whole cache lines; that doesn't play well |
1088 | with reading from a trace buffer, because reading outside of | |
1089 | the collected memory range fails. */ | |
1090 | && get_traceframe_number () == -1 | |
4e5d721f | 1091 | && (region->attrib.cache |
29453a14 YQ |
1092 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1093 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1094 | { |
2a2f9fe4 YQ |
1095 | DCACHE *dcache = target_dcache_get_or_init (); |
1096 | ||
0f26cec1 PA |
1097 | return dcache_read_memory_partial (ops, dcache, memaddr, readbuf, |
1098 | reg_len, xfered_len); | |
cf7a04e8 DJ |
1099 | } |
1100 | ||
1101 | /* If none of those methods found the memory we wanted, fall back | |
1102 | to a target partial transfer. Normally a single call to | |
1103 | to_xfer_partial is enough; if it doesn't recognize an object | |
1104 | it will call the to_xfer_partial of the next target down. | |
1105 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1106 | object which can be read from more than one valid target. |
1107 | A core file, for instance, could have some of memory but | |
1108 | delegate other bits to the target below it. So, we must | |
1109 | manually try all targets. */ | |
1110 | ||
1111 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1112 | xfered_len); | |
cf7a04e8 DJ |
1113 | |
1114 | /* If we still haven't got anything, return the last error. We | |
1115 | give up. */ | |
1116 | return res; | |
0779438d AC |
1117 | } |
1118 | ||
f0ba3972 PA |
1119 | /* Perform a partial memory transfer. For docs see target.h, |
1120 | to_xfer_partial. */ | |
1121 | ||
9b409511 | 1122 | static enum target_xfer_status |
f0ba3972 | 1123 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1124 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1125 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1126 | { |
9b409511 | 1127 | enum target_xfer_status res; |
f0ba3972 PA |
1128 | |
1129 | /* Zero length requests are ok and require no work. */ | |
1130 | if (len == 0) | |
9b409511 | 1131 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1132 | |
1133 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1134 | breakpoint insns, thus hiding out from higher layers whether | |
1135 | there are software breakpoints inserted in the code stream. */ | |
1136 | if (readbuf != NULL) | |
1137 | { | |
9b409511 YQ |
1138 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1139 | xfered_len); | |
f0ba3972 | 1140 | |
9b409511 | 1141 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
c63528fc | 1142 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, *xfered_len); |
f0ba3972 PA |
1143 | } |
1144 | else | |
1145 | { | |
1146 | void *buf; | |
1147 | struct cleanup *old_chain; | |
1148 | ||
67c059c2 AB |
1149 | /* A large write request is likely to be partially satisfied |
1150 | by memory_xfer_partial_1. We will continually malloc | |
1151 | and free a copy of the entire write request for breakpoint | |
1152 | shadow handling even though we only end up writing a small | |
1153 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1154 | len = min (4096, len); | |
1155 | ||
f0ba3972 PA |
1156 | buf = xmalloc (len); |
1157 | old_chain = make_cleanup (xfree, buf); | |
1158 | memcpy (buf, writebuf, len); | |
1159 | ||
1160 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1161 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1162 | xfered_len); | |
f0ba3972 PA |
1163 | |
1164 | do_cleanups (old_chain); | |
1165 | } | |
1166 | ||
1167 | return res; | |
1168 | } | |
1169 | ||
8defab1a DJ |
1170 | static void |
1171 | restore_show_memory_breakpoints (void *arg) | |
1172 | { | |
1173 | show_memory_breakpoints = (uintptr_t) arg; | |
1174 | } | |
1175 | ||
1176 | struct cleanup * | |
1177 | make_show_memory_breakpoints_cleanup (int show) | |
1178 | { | |
1179 | int current = show_memory_breakpoints; | |
8defab1a | 1180 | |
5d502164 | 1181 | show_memory_breakpoints = show; |
8defab1a DJ |
1182 | return make_cleanup (restore_show_memory_breakpoints, |
1183 | (void *) (uintptr_t) current); | |
1184 | } | |
1185 | ||
7f79c47e DE |
1186 | /* For docs see target.h, to_xfer_partial. */ |
1187 | ||
9b409511 | 1188 | enum target_xfer_status |
27394598 AC |
1189 | target_xfer_partial (struct target_ops *ops, |
1190 | enum target_object object, const char *annex, | |
4ac248ca | 1191 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1192 | ULONGEST offset, ULONGEST len, |
1193 | ULONGEST *xfered_len) | |
27394598 | 1194 | { |
9b409511 | 1195 | enum target_xfer_status retval; |
27394598 AC |
1196 | |
1197 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1198 | |
ce6d0892 YQ |
1199 | /* Transfer is done when LEN is zero. */ |
1200 | if (len == 0) | |
9b409511 | 1201 | return TARGET_XFER_EOF; |
ce6d0892 | 1202 | |
d914c394 SS |
1203 | if (writebuf && !may_write_memory) |
1204 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1205 | core_addr_to_string_nz (offset), plongest (len)); | |
1206 | ||
9b409511 YQ |
1207 | *xfered_len = 0; |
1208 | ||
cf7a04e8 DJ |
1209 | /* If this is a memory transfer, let the memory-specific code |
1210 | have a look at it instead. Memory transfers are more | |
1211 | complicated. */ | |
29453a14 YQ |
1212 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1213 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1214 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1215 | writebuf, offset, len, xfered_len); |
9f713294 | 1216 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1217 | { |
9f713294 | 1218 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1219 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1220 | xfered_len); | |
cf7a04e8 | 1221 | } |
9f713294 YQ |
1222 | else |
1223 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1224 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1225 | |
27394598 AC |
1226 | if (targetdebug) |
1227 | { | |
1228 | const unsigned char *myaddr = NULL; | |
1229 | ||
1230 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1231 | "%s:target_xfer_partial " |
9b409511 | 1232 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1233 | ops->to_shortname, |
1234 | (int) object, | |
1235 | (annex ? annex : "(null)"), | |
53b71562 JB |
1236 | host_address_to_string (readbuf), |
1237 | host_address_to_string (writebuf), | |
0b1553bc | 1238 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1239 | pulongest (len), retval, |
1240 | pulongest (*xfered_len)); | |
27394598 AC |
1241 | |
1242 | if (readbuf) | |
1243 | myaddr = readbuf; | |
1244 | if (writebuf) | |
1245 | myaddr = writebuf; | |
9b409511 | 1246 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1247 | { |
1248 | int i; | |
2bc416ba | 1249 | |
27394598 | 1250 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1251 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1252 | { |
53b71562 | 1253 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1254 | { |
1255 | if (targetdebug < 2 && i > 0) | |
1256 | { | |
1257 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1258 | break; | |
1259 | } | |
1260 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1261 | } | |
2bc416ba | 1262 | |
27394598 AC |
1263 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1264 | } | |
1265 | } | |
2bc416ba | 1266 | |
27394598 AC |
1267 | fputc_unfiltered ('\n', gdb_stdlog); |
1268 | } | |
9b409511 YQ |
1269 | |
1270 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1271 | properly. Do assertion after printing debug messages, so that we | |
1272 | can find more clues on assertion failure from debugging messages. */ | |
bc113b4e | 1273 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_UNAVAILABLE) |
9b409511 YQ |
1274 | gdb_assert (*xfered_len > 0); |
1275 | ||
27394598 AC |
1276 | return retval; |
1277 | } | |
1278 | ||
578d3588 PA |
1279 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1280 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1281 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1282 | |
1283 | If an error occurs, no guarantee is made about the contents of the data at | |
1284 | MYADDR. In particular, the caller should not depend upon partial reads | |
1285 | filling the buffer with good data. There is no way for the caller to know | |
1286 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1287 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1288 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1289 | |
1290 | int | |
1b162304 | 1291 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1292 | { |
c35b1492 PA |
1293 | /* Dispatch to the topmost target, not the flattened current_target. |
1294 | Memory accesses check target->to_has_(all_)memory, and the | |
1295 | flattened target doesn't inherit those. */ | |
1296 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1297 | myaddr, memaddr, len) == len) |
1298 | return 0; | |
0779438d | 1299 | else |
578d3588 | 1300 | return TARGET_XFER_E_IO; |
c906108c SS |
1301 | } |
1302 | ||
aee4bf85 PA |
1303 | /* Like target_read_memory, but specify explicitly that this is a read |
1304 | from the target's raw memory. That is, this read bypasses the | |
1305 | dcache, breakpoint shadowing, etc. */ | |
1306 | ||
1307 | int | |
1308 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1309 | { | |
1310 | /* See comment in target_read_memory about why the request starts at | |
1311 | current_target.beneath. */ | |
1312 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1313 | myaddr, memaddr, len) == len) | |
1314 | return 0; | |
1315 | else | |
1316 | return TARGET_XFER_E_IO; | |
1317 | } | |
1318 | ||
4e5d721f DE |
1319 | /* Like target_read_memory, but specify explicitly that this is a read from |
1320 | the target's stack. This may trigger different cache behavior. */ | |
1321 | ||
1322 | int | |
45aa4659 | 1323 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1324 | { |
aee4bf85 PA |
1325 | /* See comment in target_read_memory about why the request starts at |
1326 | current_target.beneath. */ | |
4e5d721f DE |
1327 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1328 | myaddr, memaddr, len) == len) | |
1329 | return 0; | |
1330 | else | |
578d3588 | 1331 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1332 | } |
1333 | ||
29453a14 YQ |
1334 | /* Like target_read_memory, but specify explicitly that this is a read from |
1335 | the target's code. This may trigger different cache behavior. */ | |
1336 | ||
1337 | int | |
1338 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1339 | { | |
aee4bf85 PA |
1340 | /* See comment in target_read_memory about why the request starts at |
1341 | current_target.beneath. */ | |
29453a14 YQ |
1342 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1343 | myaddr, memaddr, len) == len) | |
1344 | return 0; | |
1345 | else | |
1346 | return TARGET_XFER_E_IO; | |
1347 | } | |
1348 | ||
7f79c47e | 1349 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1350 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1351 | error occurs. If an error occurs, no guarantee is made about how |
1352 | much data got written. Callers that can deal with partial writes | |
1353 | should call target_write. */ | |
7f79c47e | 1354 | |
c906108c | 1355 | int |
45aa4659 | 1356 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1357 | { |
aee4bf85 PA |
1358 | /* See comment in target_read_memory about why the request starts at |
1359 | current_target.beneath. */ | |
c35b1492 | 1360 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1361 | myaddr, memaddr, len) == len) |
1362 | return 0; | |
0779438d | 1363 | else |
578d3588 | 1364 | return TARGET_XFER_E_IO; |
c906108c | 1365 | } |
c5aa993b | 1366 | |
f0ba3972 | 1367 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1368 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1369 | if any error occurs. If an error occurs, no guarantee is made |
1370 | about how much data got written. Callers that can deal with | |
1371 | partial writes should call target_write. */ | |
f0ba3972 PA |
1372 | |
1373 | int | |
45aa4659 | 1374 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1375 | { |
aee4bf85 PA |
1376 | /* See comment in target_read_memory about why the request starts at |
1377 | current_target.beneath. */ | |
f0ba3972 PA |
1378 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1379 | myaddr, memaddr, len) == len) | |
1380 | return 0; | |
1381 | else | |
578d3588 | 1382 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1383 | } |
1384 | ||
fd79ecee DJ |
1385 | /* Fetch the target's memory map. */ |
1386 | ||
1387 | VEC(mem_region_s) * | |
1388 | target_memory_map (void) | |
1389 | { | |
1390 | VEC(mem_region_s) *result; | |
1391 | struct mem_region *last_one, *this_one; | |
1392 | int ix; | |
1393 | struct target_ops *t; | |
1394 | ||
1395 | if (targetdebug) | |
1396 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1397 | ||
6b2c5a57 | 1398 | result = current_target.to_memory_map (¤t_target); |
fd79ecee DJ |
1399 | if (result == NULL) |
1400 | return NULL; | |
1401 | ||
1402 | qsort (VEC_address (mem_region_s, result), | |
1403 | VEC_length (mem_region_s, result), | |
1404 | sizeof (struct mem_region), mem_region_cmp); | |
1405 | ||
1406 | /* Check that regions do not overlap. Simultaneously assign | |
1407 | a numbering for the "mem" commands to use to refer to | |
1408 | each region. */ | |
1409 | last_one = NULL; | |
1410 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1411 | { | |
1412 | this_one->number = ix; | |
1413 | ||
1414 | if (last_one && last_one->hi > this_one->lo) | |
1415 | { | |
1416 | warning (_("Overlapping regions in memory map: ignoring")); | |
1417 | VEC_free (mem_region_s, result); | |
1418 | return NULL; | |
1419 | } | |
1420 | last_one = this_one; | |
1421 | } | |
1422 | ||
1423 | return result; | |
1424 | } | |
1425 | ||
a76d924d DJ |
1426 | void |
1427 | target_flash_erase (ULONGEST address, LONGEST length) | |
1428 | { | |
e8a6c6ac TT |
1429 | if (targetdebug) |
1430 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1431 | hex_string (address), phex (length, 0)); | |
1432 | current_target.to_flash_erase (¤t_target, address, length); | |
a76d924d DJ |
1433 | } |
1434 | ||
1435 | void | |
1436 | target_flash_done (void) | |
1437 | { | |
f6fb2925 TT |
1438 | if (targetdebug) |
1439 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1440 | current_target.to_flash_done (¤t_target); | |
a76d924d DJ |
1441 | } |
1442 | ||
920d2a44 AC |
1443 | static void |
1444 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1445 | struct cmd_list_element *c, const char *value) | |
1446 | { | |
3e43a32a MS |
1447 | fprintf_filtered (file, |
1448 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1449 | value); |
1450 | } | |
3a11626d | 1451 | |
7f79c47e | 1452 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1453 | |
9b409511 | 1454 | static enum target_xfer_status |
1e3ff5ad AC |
1455 | target_read_partial (struct target_ops *ops, |
1456 | enum target_object object, | |
1b0ba102 | 1457 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1458 | ULONGEST offset, ULONGEST len, |
1459 | ULONGEST *xfered_len) | |
1e3ff5ad | 1460 | { |
9b409511 YQ |
1461 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1462 | xfered_len); | |
1e3ff5ad AC |
1463 | } |
1464 | ||
8a55ffb0 | 1465 | static enum target_xfer_status |
1e3ff5ad AC |
1466 | target_write_partial (struct target_ops *ops, |
1467 | enum target_object object, | |
1b0ba102 | 1468 | const char *annex, const gdb_byte *buf, |
9b409511 | 1469 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1470 | { |
9b409511 YQ |
1471 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1472 | xfered_len); | |
1e3ff5ad AC |
1473 | } |
1474 | ||
1475 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1476 | |
1477 | /* For docs on target_read see target.h. */ | |
1478 | ||
1e3ff5ad AC |
1479 | LONGEST |
1480 | target_read (struct target_ops *ops, | |
1481 | enum target_object object, | |
1b0ba102 | 1482 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1483 | ULONGEST offset, LONGEST len) |
1484 | { | |
1485 | LONGEST xfered = 0; | |
5d502164 | 1486 | |
1e3ff5ad AC |
1487 | while (xfered < len) |
1488 | { | |
9b409511 YQ |
1489 | ULONGEST xfered_len; |
1490 | enum target_xfer_status status; | |
1491 | ||
1492 | status = target_read_partial (ops, object, annex, | |
1493 | (gdb_byte *) buf + xfered, | |
1494 | offset + xfered, len - xfered, | |
1495 | &xfered_len); | |
5d502164 | 1496 | |
1e3ff5ad | 1497 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1498 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1499 | return xfered; |
9b409511 YQ |
1500 | else if (status == TARGET_XFER_OK) |
1501 | { | |
1502 | xfered += xfered_len; | |
1503 | QUIT; | |
1504 | } | |
1505 | else | |
0088c768 | 1506 | return -1; |
9b409511 | 1507 | |
1e3ff5ad AC |
1508 | } |
1509 | return len; | |
1510 | } | |
1511 | ||
f1a507a1 JB |
1512 | /* Assuming that the entire [begin, end) range of memory cannot be |
1513 | read, try to read whatever subrange is possible to read. | |
1514 | ||
1515 | The function returns, in RESULT, either zero or one memory block. | |
1516 | If there's a readable subrange at the beginning, it is completely | |
1517 | read and returned. Any further readable subrange will not be read. | |
1518 | Otherwise, if there's a readable subrange at the end, it will be | |
1519 | completely read and returned. Any readable subranges before it | |
1520 | (obviously, not starting at the beginning), will be ignored. In | |
1521 | other cases -- either no readable subrange, or readable subrange(s) | |
1522 | that is neither at the beginning, or end, nothing is returned. | |
1523 | ||
1524 | The purpose of this function is to handle a read across a boundary | |
1525 | of accessible memory in a case when memory map is not available. | |
1526 | The above restrictions are fine for this case, but will give | |
1527 | incorrect results if the memory is 'patchy'. However, supporting | |
1528 | 'patchy' memory would require trying to read every single byte, | |
1529 | and it seems unacceptable solution. Explicit memory map is | |
1530 | recommended for this case -- and target_read_memory_robust will | |
1531 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1532 | |
1533 | static void | |
3e43a32a MS |
1534 | read_whatever_is_readable (struct target_ops *ops, |
1535 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1536 | VEC(memory_read_result_s) **result) |
d5086790 | 1537 | { |
f1a507a1 | 1538 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1539 | ULONGEST current_begin = begin; |
1540 | ULONGEST current_end = end; | |
1541 | int forward; | |
1542 | memory_read_result_s r; | |
9b409511 | 1543 | ULONGEST xfered_len; |
8dedea02 VP |
1544 | |
1545 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1546 | if (end - begin <= 1) | |
13b3fd9b MS |
1547 | { |
1548 | xfree (buf); | |
1549 | return; | |
1550 | } | |
8dedea02 VP |
1551 | |
1552 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1553 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1554 | at the boundary of accessible region. */ |
1555 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 1556 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1557 | { |
1558 | forward = 1; | |
1559 | ++current_begin; | |
1560 | } | |
1561 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1562 | buf + (end-begin) - 1, end - 1, 1, |
1563 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
1564 | { |
1565 | forward = 0; | |
1566 | --current_end; | |
1567 | } | |
1568 | else | |
1569 | { | |
13b3fd9b | 1570 | xfree (buf); |
8dedea02 VP |
1571 | return; |
1572 | } | |
1573 | ||
1574 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1575 | found to be not readable as a whole. | |
1576 | ||
1577 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1578 | so there's no point trying further. */ | |
1579 | while (current_end - current_begin > 1) | |
1580 | { | |
1581 | ULONGEST first_half_begin, first_half_end; | |
1582 | ULONGEST second_half_begin, second_half_end; | |
1583 | LONGEST xfer; | |
8dedea02 | 1584 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 1585 | |
8dedea02 VP |
1586 | if (forward) |
1587 | { | |
1588 | first_half_begin = current_begin; | |
1589 | first_half_end = middle; | |
1590 | second_half_begin = middle; | |
1591 | second_half_end = current_end; | |
1592 | } | |
1593 | else | |
1594 | { | |
1595 | first_half_begin = middle; | |
1596 | first_half_end = current_end; | |
1597 | second_half_begin = current_begin; | |
1598 | second_half_end = middle; | |
1599 | } | |
1600 | ||
1601 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1602 | buf + (first_half_begin - begin), | |
1603 | first_half_begin, | |
1604 | first_half_end - first_half_begin); | |
1605 | ||
1606 | if (xfer == first_half_end - first_half_begin) | |
1607 | { | |
c378eb4e | 1608 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 1609 | other half. */ |
8dedea02 VP |
1610 | current_begin = second_half_begin; |
1611 | current_end = second_half_end; | |
1612 | } | |
1613 | else | |
1614 | { | |
c378eb4e MS |
1615 | /* This half is not readable. Because we've tried one byte, we |
1616 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
1617 | iteration to divide again and try to read. |
1618 | ||
1619 | We don't handle the other half, because this function only tries | |
1620 | to read a single readable subrange. */ | |
1621 | current_begin = first_half_begin; | |
1622 | current_end = first_half_end; | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | if (forward) | |
1627 | { | |
1628 | /* The [begin, current_begin) range has been read. */ | |
1629 | r.begin = begin; | |
1630 | r.end = current_begin; | |
1631 | r.data = buf; | |
1632 | } | |
1633 | else | |
1634 | { | |
1635 | /* The [current_end, end) range has been read. */ | |
1636 | LONGEST rlen = end - current_end; | |
f1a507a1 | 1637 | |
8dedea02 VP |
1638 | r.data = xmalloc (rlen); |
1639 | memcpy (r.data, buf + current_end - begin, rlen); | |
1640 | r.begin = current_end; | |
1641 | r.end = end; | |
1642 | xfree (buf); | |
1643 | } | |
1644 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
1645 | } | |
1646 | ||
1647 | void | |
1648 | free_memory_read_result_vector (void *x) | |
1649 | { | |
1650 | VEC(memory_read_result_s) *v = x; | |
1651 | memory_read_result_s *current; | |
1652 | int ix; | |
1653 | ||
1654 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
1655 | { | |
1656 | xfree (current->data); | |
1657 | } | |
1658 | VEC_free (memory_read_result_s, v); | |
1659 | } | |
1660 | ||
1661 | VEC(memory_read_result_s) * | |
1662 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
1663 | { | |
1664 | VEC(memory_read_result_s) *result = 0; | |
1665 | ||
1666 | LONGEST xfered = 0; | |
d5086790 VP |
1667 | while (xfered < len) |
1668 | { | |
8dedea02 VP |
1669 | struct mem_region *region = lookup_mem_region (offset + xfered); |
1670 | LONGEST rlen; | |
5d502164 | 1671 | |
8dedea02 VP |
1672 | /* If there is no explicit region, a fake one should be created. */ |
1673 | gdb_assert (region); | |
1674 | ||
1675 | if (region->hi == 0) | |
1676 | rlen = len - xfered; | |
1677 | else | |
1678 | rlen = region->hi - offset; | |
1679 | ||
1680 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 1681 | { |
c378eb4e | 1682 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
1683 | if the region is explicitly marked inaccessible, or |
1684 | 'inaccessible-by-default' is in effect. */ | |
1685 | xfered += rlen; | |
1686 | } | |
1687 | else | |
1688 | { | |
1689 | LONGEST to_read = min (len - xfered, rlen); | |
1690 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
1691 | ||
1692 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1693 | (gdb_byte *) buffer, | |
1694 | offset + xfered, to_read); | |
1695 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 1696 | if (xfer <= 0) |
d5086790 | 1697 | { |
c378eb4e | 1698 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
1699 | some subrange. */ |
1700 | xfree (buffer); | |
3e43a32a MS |
1701 | read_whatever_is_readable (ops, offset + xfered, |
1702 | offset + xfered + to_read, &result); | |
8dedea02 | 1703 | xfered += to_read; |
d5086790 | 1704 | } |
8dedea02 VP |
1705 | else |
1706 | { | |
1707 | struct memory_read_result r; | |
1708 | r.data = buffer; | |
1709 | r.begin = offset + xfered; | |
1710 | r.end = r.begin + xfer; | |
1711 | VEC_safe_push (memory_read_result_s, result, &r); | |
1712 | xfered += xfer; | |
1713 | } | |
1714 | QUIT; | |
d5086790 | 1715 | } |
d5086790 | 1716 | } |
8dedea02 | 1717 | return result; |
d5086790 VP |
1718 | } |
1719 | ||
8dedea02 | 1720 | |
cf7a04e8 DJ |
1721 | /* An alternative to target_write with progress callbacks. */ |
1722 | ||
1e3ff5ad | 1723 | LONGEST |
cf7a04e8 DJ |
1724 | target_write_with_progress (struct target_ops *ops, |
1725 | enum target_object object, | |
1726 | const char *annex, const gdb_byte *buf, | |
1727 | ULONGEST offset, LONGEST len, | |
1728 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
1729 | { |
1730 | LONGEST xfered = 0; | |
a76d924d DJ |
1731 | |
1732 | /* Give the progress callback a chance to set up. */ | |
1733 | if (progress) | |
1734 | (*progress) (0, baton); | |
1735 | ||
1e3ff5ad AC |
1736 | while (xfered < len) |
1737 | { | |
9b409511 YQ |
1738 | ULONGEST xfered_len; |
1739 | enum target_xfer_status status; | |
1740 | ||
1741 | status = target_write_partial (ops, object, annex, | |
1742 | (gdb_byte *) buf + xfered, | |
1743 | offset + xfered, len - xfered, | |
1744 | &xfered_len); | |
cf7a04e8 | 1745 | |
5c328c05 YQ |
1746 | if (status != TARGET_XFER_OK) |
1747 | return status == TARGET_XFER_EOF ? xfered : -1; | |
cf7a04e8 DJ |
1748 | |
1749 | if (progress) | |
9b409511 | 1750 | (*progress) (xfered_len, baton); |
cf7a04e8 | 1751 | |
9b409511 | 1752 | xfered += xfered_len; |
1e3ff5ad AC |
1753 | QUIT; |
1754 | } | |
1755 | return len; | |
1756 | } | |
1757 | ||
7f79c47e DE |
1758 | /* For docs on target_write see target.h. */ |
1759 | ||
cf7a04e8 DJ |
1760 | LONGEST |
1761 | target_write (struct target_ops *ops, | |
1762 | enum target_object object, | |
1763 | const char *annex, const gdb_byte *buf, | |
1764 | ULONGEST offset, LONGEST len) | |
1765 | { | |
1766 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1767 | NULL, NULL); | |
1768 | } | |
1769 | ||
159f81f3 DJ |
1770 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1771 | the size of the transferred data. PADDING additional bytes are | |
1772 | available in *BUF_P. This is a helper function for | |
1773 | target_read_alloc; see the declaration of that function for more | |
1774 | information. */ | |
13547ab6 | 1775 | |
159f81f3 DJ |
1776 | static LONGEST |
1777 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
1778 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
1779 | { |
1780 | size_t buf_alloc, buf_pos; | |
1781 | gdb_byte *buf; | |
13547ab6 DJ |
1782 | |
1783 | /* This function does not have a length parameter; it reads the | |
1784 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1785 | from one target and partly from another (in a different stratum, | |
1786 | e.g. a core file and an executable). Both reasons make it | |
1787 | unsuitable for reading memory. */ | |
1788 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1789 | ||
1790 | /* Start by reading up to 4K at a time. The target will throttle | |
1791 | this number down if necessary. */ | |
1792 | buf_alloc = 4096; | |
1793 | buf = xmalloc (buf_alloc); | |
1794 | buf_pos = 0; | |
1795 | while (1) | |
1796 | { | |
9b409511 YQ |
1797 | ULONGEST xfered_len; |
1798 | enum target_xfer_status status; | |
1799 | ||
1800 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
1801 | buf_pos, buf_alloc - buf_pos - padding, | |
1802 | &xfered_len); | |
1803 | ||
1804 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
1805 | { |
1806 | /* Read all there was. */ | |
1807 | if (buf_pos == 0) | |
1808 | xfree (buf); | |
1809 | else | |
1810 | *buf_p = buf; | |
1811 | return buf_pos; | |
1812 | } | |
9b409511 YQ |
1813 | else if (status != TARGET_XFER_OK) |
1814 | { | |
1815 | /* An error occurred. */ | |
1816 | xfree (buf); | |
1817 | return TARGET_XFER_E_IO; | |
1818 | } | |
13547ab6 | 1819 | |
9b409511 | 1820 | buf_pos += xfered_len; |
13547ab6 DJ |
1821 | |
1822 | /* If the buffer is filling up, expand it. */ | |
1823 | if (buf_alloc < buf_pos * 2) | |
1824 | { | |
1825 | buf_alloc *= 2; | |
1826 | buf = xrealloc (buf, buf_alloc); | |
1827 | } | |
1828 | ||
1829 | QUIT; | |
1830 | } | |
1831 | } | |
1832 | ||
159f81f3 DJ |
1833 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1834 | the size of the transferred data. See the declaration in "target.h" | |
1835 | function for more information about the return value. */ | |
1836 | ||
1837 | LONGEST | |
1838 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
1839 | const char *annex, gdb_byte **buf_p) | |
1840 | { | |
1841 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
1842 | } | |
1843 | ||
1844 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
1845 | returned as a string, allocated using xmalloc. If an error occurs | |
1846 | or the transfer is unsupported, NULL is returned. Empty objects | |
1847 | are returned as allocated but empty strings. A warning is issued | |
1848 | if the result contains any embedded NUL bytes. */ | |
1849 | ||
1850 | char * | |
1851 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
1852 | const char *annex) | |
1853 | { | |
39086a0e PA |
1854 | gdb_byte *buffer; |
1855 | char *bufstr; | |
7313baad | 1856 | LONGEST i, transferred; |
159f81f3 | 1857 | |
39086a0e PA |
1858 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
1859 | bufstr = (char *) buffer; | |
159f81f3 DJ |
1860 | |
1861 | if (transferred < 0) | |
1862 | return NULL; | |
1863 | ||
1864 | if (transferred == 0) | |
1865 | return xstrdup (""); | |
1866 | ||
39086a0e | 1867 | bufstr[transferred] = 0; |
7313baad UW |
1868 | |
1869 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
1870 | for (i = strlen (bufstr); i < transferred; i++) |
1871 | if (bufstr[i] != 0) | |
7313baad UW |
1872 | { |
1873 | warning (_("target object %d, annex %s, " | |
1874 | "contained unexpected null characters"), | |
1875 | (int) object, annex ? annex : "(none)"); | |
1876 | break; | |
1877 | } | |
159f81f3 | 1878 | |
39086a0e | 1879 | return bufstr; |
159f81f3 DJ |
1880 | } |
1881 | ||
b6591e8b AC |
1882 | /* Memory transfer methods. */ |
1883 | ||
1884 | void | |
1b0ba102 | 1885 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1886 | LONGEST len) |
1887 | { | |
07b82ea5 PA |
1888 | /* This method is used to read from an alternate, non-current |
1889 | target. This read must bypass the overlay support (as symbols | |
1890 | don't match this target), and GDB's internal cache (wrong cache | |
1891 | for this target). */ | |
1892 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 1893 | != len) |
578d3588 | 1894 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
1895 | } |
1896 | ||
1897 | ULONGEST | |
5d502164 MS |
1898 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
1899 | int len, enum bfd_endian byte_order) | |
b6591e8b | 1900 | { |
f6519ebc | 1901 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1902 | |
1903 | gdb_assert (len <= sizeof (buf)); | |
1904 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 1905 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
1906 | } |
1907 | ||
3db08215 MM |
1908 | /* See target.h. */ |
1909 | ||
d914c394 SS |
1910 | int |
1911 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
1912 | struct bp_target_info *bp_tgt) | |
1913 | { | |
1914 | if (!may_insert_breakpoints) | |
1915 | { | |
1916 | warning (_("May not insert breakpoints")); | |
1917 | return 1; | |
1918 | } | |
1919 | ||
6b84065d TT |
1920 | return current_target.to_insert_breakpoint (¤t_target, |
1921 | gdbarch, bp_tgt); | |
d914c394 SS |
1922 | } |
1923 | ||
3db08215 MM |
1924 | /* See target.h. */ |
1925 | ||
d914c394 | 1926 | int |
6b84065d TT |
1927 | target_remove_breakpoint (struct gdbarch *gdbarch, |
1928 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
1929 | { |
1930 | /* This is kind of a weird case to handle, but the permission might | |
1931 | have been changed after breakpoints were inserted - in which case | |
1932 | we should just take the user literally and assume that any | |
1933 | breakpoints should be left in place. */ | |
1934 | if (!may_insert_breakpoints) | |
1935 | { | |
1936 | warning (_("May not remove breakpoints")); | |
1937 | return 1; | |
1938 | } | |
1939 | ||
6b84065d TT |
1940 | return current_target.to_remove_breakpoint (¤t_target, |
1941 | gdbarch, bp_tgt); | |
d914c394 SS |
1942 | } |
1943 | ||
c906108c | 1944 | static void |
fba45db2 | 1945 | target_info (char *args, int from_tty) |
c906108c SS |
1946 | { |
1947 | struct target_ops *t; | |
c906108c | 1948 | int has_all_mem = 0; |
c5aa993b | 1949 | |
c906108c | 1950 | if (symfile_objfile != NULL) |
4262abfb JK |
1951 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
1952 | objfile_name (symfile_objfile)); | |
c906108c | 1953 | |
258b763a | 1954 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1955 | { |
c35b1492 | 1956 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
1957 | continue; |
1958 | ||
c5aa993b | 1959 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1960 | continue; |
1961 | if (has_all_mem) | |
3e43a32a MS |
1962 | printf_unfiltered (_("\tWhile running this, " |
1963 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
1964 | printf_unfiltered ("%s:\n", t->to_longname); |
1965 | (t->to_files_info) (t); | |
c35b1492 | 1966 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
1967 | } |
1968 | } | |
1969 | ||
fd79ecee DJ |
1970 | /* This function is called before any new inferior is created, e.g. |
1971 | by running a program, attaching, or connecting to a target. | |
1972 | It cleans up any state from previous invocations which might | |
1973 | change between runs. This is a subset of what target_preopen | |
1974 | resets (things which might change between targets). */ | |
1975 | ||
1976 | void | |
1977 | target_pre_inferior (int from_tty) | |
1978 | { | |
c378eb4e | 1979 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 1980 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 1981 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
1982 | to reproduce: |
1983 | ||
1984 | bash$ ./foo& | |
1985 | [1] 4711 | |
1986 | bash$ ./foo& | |
1987 | [1] 4712 | |
1988 | bash$ gdb ./foo | |
1989 | [...] | |
1990 | (gdb) attach 4711 | |
1991 | (gdb) detach | |
1992 | (gdb) attach 4712 | |
1993 | Cannot access memory at address 0xdeadbeef | |
1994 | */ | |
b9db4ced | 1995 | |
50c71eaf PA |
1996 | /* In some OSs, the shared library list is the same/global/shared |
1997 | across inferiors. If code is shared between processes, so are | |
1998 | memory regions and features. */ | |
f5656ead | 1999 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2000 | { |
2001 | no_shared_libraries (NULL, from_tty); | |
2002 | ||
2003 | invalidate_target_mem_regions (); | |
424163ea | 2004 | |
50c71eaf PA |
2005 | target_clear_description (); |
2006 | } | |
8ffcbaaf YQ |
2007 | |
2008 | agent_capability_invalidate (); | |
fd79ecee DJ |
2009 | } |
2010 | ||
b8fa0bfa PA |
2011 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2012 | inferior. */ | |
2013 | ||
2014 | static int | |
2015 | dispose_inferior (struct inferior *inf, void *args) | |
2016 | { | |
2017 | struct thread_info *thread; | |
2018 | ||
2019 | thread = any_thread_of_process (inf->pid); | |
2020 | if (thread) | |
2021 | { | |
2022 | switch_to_thread (thread->ptid); | |
2023 | ||
2024 | /* Core inferiors actually should be detached, not killed. */ | |
2025 | if (target_has_execution) | |
2026 | target_kill (); | |
2027 | else | |
2028 | target_detach (NULL, 0); | |
2029 | } | |
2030 | ||
2031 | return 0; | |
2032 | } | |
2033 | ||
c906108c SS |
2034 | /* This is to be called by the open routine before it does |
2035 | anything. */ | |
2036 | ||
2037 | void | |
fba45db2 | 2038 | target_preopen (int from_tty) |
c906108c | 2039 | { |
c5aa993b | 2040 | dont_repeat (); |
c906108c | 2041 | |
b8fa0bfa | 2042 | if (have_inferiors ()) |
c5aa993b | 2043 | { |
adf40b2e | 2044 | if (!from_tty |
b8fa0bfa PA |
2045 | || !have_live_inferiors () |
2046 | || query (_("A program is being debugged already. Kill it? "))) | |
2047 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2048 | else |
8a3fe4f8 | 2049 | error (_("Program not killed.")); |
c906108c SS |
2050 | } |
2051 | ||
2052 | /* Calling target_kill may remove the target from the stack. But if | |
2053 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2054 | /* Leave the exec target, though. The user may be switching from a |
2055 | live process to a core of the same program. */ | |
460014f5 | 2056 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2057 | |
2058 | target_pre_inferior (from_tty); | |
c906108c SS |
2059 | } |
2060 | ||
2061 | /* Detach a target after doing deferred register stores. */ | |
2062 | ||
2063 | void | |
52554a0e | 2064 | target_detach (const char *args, int from_tty) |
c906108c | 2065 | { |
136d6dae VP |
2066 | struct target_ops* t; |
2067 | ||
f5656ead | 2068 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2069 | /* Don't remove global breakpoints here. They're removed on |
2070 | disconnection from the target. */ | |
2071 | ; | |
2072 | else | |
2073 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2074 | them before detaching. */ | |
dfd4cc63 | 2075 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2076 | |
24291992 PA |
2077 | prepare_for_detach (); |
2078 | ||
09da0d0a TT |
2079 | current_target.to_detach (¤t_target, args, from_tty); |
2080 | if (targetdebug) | |
2081 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2082 | args, from_tty); | |
c906108c SS |
2083 | } |
2084 | ||
6ad8ae5c DJ |
2085 | void |
2086 | target_disconnect (char *args, int from_tty) | |
2087 | { | |
50c71eaf PA |
2088 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2089 | are global across processes, we have to remove them before | |
2090 | disconnecting. */ | |
74960c60 VP |
2091 | remove_breakpoints (); |
2092 | ||
86a0854a TT |
2093 | if (targetdebug) |
2094 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2095 | args, from_tty); | |
2096 | current_target.to_disconnect (¤t_target, args, from_tty); | |
6ad8ae5c DJ |
2097 | } |
2098 | ||
117de6a9 | 2099 | ptid_t |
47608cb1 | 2100 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2101 | { |
2102 | struct target_ops *t; | |
6b84065d TT |
2103 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2104 | status, options); | |
117de6a9 | 2105 | |
6b84065d | 2106 | if (targetdebug) |
117de6a9 | 2107 | { |
6b84065d TT |
2108 | char *status_string; |
2109 | char *options_string; | |
117de6a9 | 2110 | |
6b84065d TT |
2111 | status_string = target_waitstatus_to_string (status); |
2112 | options_string = target_options_to_string (options); | |
2113 | fprintf_unfiltered (gdb_stdlog, | |
2114 | "target_wait (%d, status, options={%s})" | |
2115 | " = %d, %s\n", | |
2116 | ptid_get_pid (ptid), options_string, | |
2117 | ptid_get_pid (retval), status_string); | |
2118 | xfree (status_string); | |
2119 | xfree (options_string); | |
117de6a9 PA |
2120 | } |
2121 | ||
6b84065d | 2122 | return retval; |
117de6a9 PA |
2123 | } |
2124 | ||
2125 | char * | |
2126 | target_pid_to_str (ptid_t ptid) | |
2127 | { | |
770234d3 | 2128 | return (*current_target.to_pid_to_str) (¤t_target, ptid); |
117de6a9 PA |
2129 | } |
2130 | ||
4694da01 TT |
2131 | char * |
2132 | target_thread_name (struct thread_info *info) | |
2133 | { | |
825828fc | 2134 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2135 | } |
2136 | ||
e1ac3328 | 2137 | void |
2ea28649 | 2138 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2139 | { |
28439f5e PA |
2140 | struct target_ops *t; |
2141 | ||
4e5d721f | 2142 | target_dcache_invalidate (); |
28439f5e | 2143 | |
6b84065d TT |
2144 | current_target.to_resume (¤t_target, ptid, step, signal); |
2145 | if (targetdebug) | |
2146 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2147 | ptid_get_pid (ptid), | |
2148 | step ? "step" : "continue", | |
2149 | gdb_signal_to_name (signal)); | |
28439f5e | 2150 | |
6b84065d TT |
2151 | registers_changed_ptid (ptid); |
2152 | set_executing (ptid, 1); | |
2153 | set_running (ptid, 1); | |
2154 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2155 | } |
2455069d UW |
2156 | |
2157 | void | |
2158 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2159 | { | |
035cad7f | 2160 | if (targetdebug) |
2455069d | 2161 | { |
035cad7f | 2162 | int i; |
2455069d | 2163 | |
035cad7f TT |
2164 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", |
2165 | numsigs); | |
2455069d | 2166 | |
035cad7f TT |
2167 | for (i = 0; i < numsigs; i++) |
2168 | if (pass_signals[i]) | |
2169 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2170 | gdb_signal_to_name (i)); | |
2455069d | 2171 | |
035cad7f | 2172 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
2455069d | 2173 | } |
035cad7f TT |
2174 | |
2175 | (*current_target.to_pass_signals) (¤t_target, numsigs, pass_signals); | |
2455069d UW |
2176 | } |
2177 | ||
9b224c5e PA |
2178 | void |
2179 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2180 | { | |
7d4f8efa | 2181 | if (targetdebug) |
9b224c5e | 2182 | { |
7d4f8efa | 2183 | int i; |
9b224c5e | 2184 | |
7d4f8efa TT |
2185 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", |
2186 | numsigs); | |
9b224c5e | 2187 | |
7d4f8efa TT |
2188 | for (i = 0; i < numsigs; i++) |
2189 | if (program_signals[i]) | |
2190 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2191 | gdb_signal_to_name (i)); | |
9b224c5e | 2192 | |
7d4f8efa | 2193 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
9b224c5e | 2194 | } |
7d4f8efa TT |
2195 | |
2196 | (*current_target.to_program_signals) (¤t_target, | |
2197 | numsigs, program_signals); | |
9b224c5e PA |
2198 | } |
2199 | ||
098dba18 TT |
2200 | static int |
2201 | default_follow_fork (struct target_ops *self, int follow_child, | |
2202 | int detach_fork) | |
2203 | { | |
2204 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2205 | internal_error (__FILE__, __LINE__, | |
2206 | _("could not find a target to follow fork")); | |
2207 | } | |
2208 | ||
ee057212 DJ |
2209 | /* Look through the list of possible targets for a target that can |
2210 | follow forks. */ | |
2211 | ||
2212 | int | |
07107ca6 | 2213 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 | 2214 | { |
098dba18 TT |
2215 | int retval = current_target.to_follow_fork (¤t_target, |
2216 | follow_child, detach_fork); | |
ee057212 | 2217 | |
098dba18 TT |
2218 | if (targetdebug) |
2219 | fprintf_unfiltered (gdb_stdlog, | |
2220 | "target_follow_fork (%d, %d) = %d\n", | |
2221 | follow_child, detach_fork, retval); | |
2222 | return retval; | |
ee057212 DJ |
2223 | } |
2224 | ||
8d657035 TT |
2225 | static void |
2226 | default_mourn_inferior (struct target_ops *self) | |
2227 | { | |
2228 | internal_error (__FILE__, __LINE__, | |
2229 | _("could not find a target to follow mourn inferior")); | |
2230 | } | |
2231 | ||
136d6dae VP |
2232 | void |
2233 | target_mourn_inferior (void) | |
2234 | { | |
8d657035 TT |
2235 | current_target.to_mourn_inferior (¤t_target); |
2236 | if (targetdebug) | |
2237 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
136d6dae | 2238 | |
8d657035 TT |
2239 | /* We no longer need to keep handles on any of the object files. |
2240 | Make sure to release them to avoid unnecessarily locking any | |
2241 | of them while we're not actually debugging. */ | |
2242 | bfd_cache_close_all (); | |
136d6dae VP |
2243 | } |
2244 | ||
424163ea DJ |
2245 | /* Look for a target which can describe architectural features, starting |
2246 | from TARGET. If we find one, return its description. */ | |
2247 | ||
2248 | const struct target_desc * | |
2249 | target_read_description (struct target_ops *target) | |
2250 | { | |
2117c711 | 2251 | return target->to_read_description (target); |
424163ea DJ |
2252 | } |
2253 | ||
58a5184e | 2254 | /* This implements a basic search of memory, reading target memory and |
08388c79 DE |
2255 | performing the search here (as opposed to performing the search in on the |
2256 | target side with, for example, gdbserver). */ | |
2257 | ||
2258 | int | |
2259 | simple_search_memory (struct target_ops *ops, | |
2260 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2261 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2262 | CORE_ADDR *found_addrp) | |
2263 | { | |
2264 | /* NOTE: also defined in find.c testcase. */ | |
2265 | #define SEARCH_CHUNK_SIZE 16000 | |
2266 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2267 | /* Buffer to hold memory contents for searching. */ | |
2268 | gdb_byte *search_buf; | |
2269 | unsigned search_buf_size; | |
2270 | struct cleanup *old_cleanups; | |
2271 | ||
2272 | search_buf_size = chunk_size + pattern_len - 1; | |
2273 | ||
2274 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2275 | if (search_space_len < search_buf_size) | |
2276 | search_buf_size = search_space_len; | |
2277 | ||
2278 | search_buf = malloc (search_buf_size); | |
2279 | if (search_buf == NULL) | |
5e1471f5 | 2280 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2281 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2282 | ||
2283 | /* Prime the search buffer. */ | |
2284 | ||
2285 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2286 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2287 | { | |
b3dc46ff AB |
2288 | warning (_("Unable to access %s bytes of target " |
2289 | "memory at %s, halting search."), | |
2290 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2291 | do_cleanups (old_cleanups); |
2292 | return -1; | |
2293 | } | |
2294 | ||
2295 | /* Perform the search. | |
2296 | ||
2297 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2298 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2299 | read in another N bytes. */ | |
2300 | ||
2301 | while (search_space_len >= pattern_len) | |
2302 | { | |
2303 | gdb_byte *found_ptr; | |
2304 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2305 | ||
2306 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2307 | pattern, pattern_len); | |
2308 | ||
2309 | if (found_ptr != NULL) | |
2310 | { | |
2311 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2312 | |
08388c79 DE |
2313 | *found_addrp = found_addr; |
2314 | do_cleanups (old_cleanups); | |
2315 | return 1; | |
2316 | } | |
2317 | ||
2318 | /* Not found in this chunk, skip to next chunk. */ | |
2319 | ||
2320 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2321 | if (search_space_len >= chunk_size) | |
2322 | search_space_len -= chunk_size; | |
2323 | else | |
2324 | search_space_len = 0; | |
2325 | ||
2326 | if (search_space_len >= pattern_len) | |
2327 | { | |
2328 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2329 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2330 | int nr_to_read; |
2331 | ||
2332 | /* Copy the trailing part of the previous iteration to the front | |
2333 | of the buffer for the next iteration. */ | |
2334 | gdb_assert (keep_len == pattern_len - 1); | |
2335 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2336 | ||
2337 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2338 | ||
2339 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2340 | search_buf + keep_len, read_addr, | |
2341 | nr_to_read) != nr_to_read) | |
2342 | { | |
b3dc46ff | 2343 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2344 | "memory at %s, halting search."), |
b3dc46ff | 2345 | plongest (nr_to_read), |
08388c79 DE |
2346 | hex_string (read_addr)); |
2347 | do_cleanups (old_cleanups); | |
2348 | return -1; | |
2349 | } | |
2350 | ||
2351 | start_addr += chunk_size; | |
2352 | } | |
2353 | } | |
2354 | ||
2355 | /* Not found. */ | |
2356 | ||
2357 | do_cleanups (old_cleanups); | |
2358 | return 0; | |
2359 | } | |
2360 | ||
58a5184e TT |
2361 | /* Default implementation of memory-searching. */ |
2362 | ||
2363 | static int | |
2364 | default_search_memory (struct target_ops *self, | |
2365 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2366 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2367 | CORE_ADDR *found_addrp) | |
2368 | { | |
2369 | /* Start over from the top of the target stack. */ | |
2370 | return simple_search_memory (current_target.beneath, | |
2371 | start_addr, search_space_len, | |
2372 | pattern, pattern_len, found_addrp); | |
2373 | } | |
2374 | ||
08388c79 DE |
2375 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
2376 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2377 | ||
2378 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2379 | requiring halting of the search (e.g. memory read error). | |
2380 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2381 | ||
2382 | int | |
2383 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2384 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2385 | CORE_ADDR *found_addrp) | |
2386 | { | |
08388c79 DE |
2387 | int found; |
2388 | ||
08388c79 DE |
2389 | if (targetdebug) |
2390 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2391 | hex_string (start_addr)); | |
2392 | ||
58a5184e TT |
2393 | found = current_target.to_search_memory (¤t_target, start_addr, |
2394 | search_space_len, | |
2395 | pattern, pattern_len, found_addrp); | |
08388c79 DE |
2396 | |
2397 | if (targetdebug) | |
2398 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2399 | ||
2400 | return found; | |
2401 | } | |
2402 | ||
8edfe269 DJ |
2403 | /* Look through the currently pushed targets. If none of them will |
2404 | be able to restart the currently running process, issue an error | |
2405 | message. */ | |
2406 | ||
2407 | void | |
2408 | target_require_runnable (void) | |
2409 | { | |
2410 | struct target_ops *t; | |
2411 | ||
2412 | for (t = target_stack; t != NULL; t = t->beneath) | |
2413 | { | |
2414 | /* If this target knows how to create a new program, then | |
2415 | assume we will still be able to after killing the current | |
2416 | one. Either killing and mourning will not pop T, or else | |
2417 | find_default_run_target will find it again. */ | |
2418 | if (t->to_create_inferior != NULL) | |
2419 | return; | |
2420 | ||
2421 | /* Do not worry about thread_stratum targets that can not | |
2422 | create inferiors. Assume they will be pushed again if | |
2423 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2424 | if (t->to_stratum == thread_stratum |
2425 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2426 | continue; |
2427 | ||
3e43a32a MS |
2428 | error (_("The \"%s\" target does not support \"run\". " |
2429 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2430 | t->to_shortname); |
2431 | } | |
2432 | ||
2433 | /* This function is only called if the target is running. In that | |
2434 | case there should have been a process_stratum target and it | |
c378eb4e | 2435 | should either know how to create inferiors, or not... */ |
9b20d036 | 2436 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2437 | } |
2438 | ||
c906108c SS |
2439 | /* Look through the list of possible targets for a target that can |
2440 | execute a run or attach command without any other data. This is | |
2441 | used to locate the default process stratum. | |
2442 | ||
5f667f2d PA |
2443 | If DO_MESG is not NULL, the result is always valid (error() is |
2444 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2445 | |
2446 | static struct target_ops * | |
fba45db2 | 2447 | find_default_run_target (char *do_mesg) |
c906108c SS |
2448 | { |
2449 | struct target_ops **t; | |
2450 | struct target_ops *runable = NULL; | |
2451 | int count; | |
2452 | ||
2453 | count = 0; | |
2454 | ||
2455 | for (t = target_structs; t < target_structs + target_struct_size; | |
2456 | ++t) | |
2457 | { | |
e88ef65c | 2458 | if ((*t)->to_can_run != delegate_can_run && target_can_run (*t)) |
c906108c SS |
2459 | { |
2460 | runable = *t; | |
2461 | ++count; | |
2462 | } | |
2463 | } | |
2464 | ||
2465 | if (count != 1) | |
5f667f2d PA |
2466 | { |
2467 | if (do_mesg) | |
2468 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2469 | else | |
2470 | return NULL; | |
2471 | } | |
c906108c SS |
2472 | |
2473 | return runable; | |
2474 | } | |
2475 | ||
b3ccfe11 | 2476 | /* See target.h. */ |
c906108c | 2477 | |
b3ccfe11 TT |
2478 | struct target_ops * |
2479 | find_attach_target (void) | |
c906108c SS |
2480 | { |
2481 | struct target_ops *t; | |
2482 | ||
b3ccfe11 TT |
2483 | /* If a target on the current stack can attach, use it. */ |
2484 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2485 | { | |
2486 | if (t->to_attach != NULL) | |
2487 | break; | |
2488 | } | |
c906108c | 2489 | |
b3ccfe11 TT |
2490 | /* Otherwise, use the default run target for attaching. */ |
2491 | if (t == NULL) | |
2492 | t = find_default_run_target ("attach"); | |
b84876c2 | 2493 | |
b3ccfe11 | 2494 | return t; |
b84876c2 PA |
2495 | } |
2496 | ||
b3ccfe11 | 2497 | /* See target.h. */ |
b84876c2 | 2498 | |
b3ccfe11 TT |
2499 | struct target_ops * |
2500 | find_run_target (void) | |
9908b566 VP |
2501 | { |
2502 | struct target_ops *t; | |
2503 | ||
b3ccfe11 TT |
2504 | /* If a target on the current stack can attach, use it. */ |
2505 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2506 | { | |
2507 | if (t->to_create_inferior != NULL) | |
2508 | break; | |
2509 | } | |
5d502164 | 2510 | |
b3ccfe11 TT |
2511 | /* Otherwise, use the default run target. */ |
2512 | if (t == NULL) | |
2513 | t = find_default_run_target ("run"); | |
9908b566 | 2514 | |
b3ccfe11 | 2515 | return t; |
9908b566 VP |
2516 | } |
2517 | ||
145b16a9 UW |
2518 | /* Implement the "info proc" command. */ |
2519 | ||
451b7c33 | 2520 | int |
145b16a9 UW |
2521 | target_info_proc (char *args, enum info_proc_what what) |
2522 | { | |
2523 | struct target_ops *t; | |
2524 | ||
2525 | /* If we're already connected to something that can get us OS | |
2526 | related data, use it. Otherwise, try using the native | |
2527 | target. */ | |
2528 | if (current_target.to_stratum >= process_stratum) | |
2529 | t = current_target.beneath; | |
2530 | else | |
2531 | t = find_default_run_target (NULL); | |
2532 | ||
2533 | for (; t != NULL; t = t->beneath) | |
2534 | { | |
2535 | if (t->to_info_proc != NULL) | |
2536 | { | |
2537 | t->to_info_proc (t, args, what); | |
2538 | ||
2539 | if (targetdebug) | |
2540 | fprintf_unfiltered (gdb_stdlog, | |
2541 | "target_info_proc (\"%s\", %d)\n", args, what); | |
2542 | ||
451b7c33 | 2543 | return 1; |
145b16a9 UW |
2544 | } |
2545 | } | |
2546 | ||
451b7c33 | 2547 | return 0; |
145b16a9 UW |
2548 | } |
2549 | ||
03583c20 | 2550 | static int |
2bfc0540 | 2551 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
2552 | { |
2553 | struct target_ops *t; | |
2554 | ||
2555 | t = find_default_run_target (NULL); | |
2556 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 2557 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
2558 | return 0; |
2559 | } | |
2560 | ||
2561 | int | |
2562 | target_supports_disable_randomization (void) | |
2563 | { | |
2564 | struct target_ops *t; | |
2565 | ||
2566 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
2567 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 2568 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
2569 | |
2570 | return 0; | |
2571 | } | |
9908b566 | 2572 | |
07e059b5 VP |
2573 | char * |
2574 | target_get_osdata (const char *type) | |
2575 | { | |
07e059b5 VP |
2576 | struct target_ops *t; |
2577 | ||
739ef7fb PA |
2578 | /* If we're already connected to something that can get us OS |
2579 | related data, use it. Otherwise, try using the native | |
2580 | target. */ | |
2581 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 2582 | t = current_target.beneath; |
739ef7fb PA |
2583 | else |
2584 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
2585 | |
2586 | if (!t) | |
2587 | return NULL; | |
2588 | ||
6d097e65 | 2589 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
2590 | } |
2591 | ||
6c95b8df PA |
2592 | /* Determine the current address space of thread PTID. */ |
2593 | ||
2594 | struct address_space * | |
2595 | target_thread_address_space (ptid_t ptid) | |
2596 | { | |
c0694254 | 2597 | struct address_space *aspace; |
6c95b8df | 2598 | struct inferior *inf; |
c0694254 PA |
2599 | struct target_ops *t; |
2600 | ||
2601 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2602 | { | |
2603 | if (t->to_thread_address_space != NULL) | |
2604 | { | |
2605 | aspace = t->to_thread_address_space (t, ptid); | |
2606 | gdb_assert (aspace); | |
6c95b8df | 2607 | |
c0694254 PA |
2608 | if (targetdebug) |
2609 | fprintf_unfiltered (gdb_stdlog, | |
2610 | "target_thread_address_space (%s) = %d\n", | |
2611 | target_pid_to_str (ptid), | |
2612 | address_space_num (aspace)); | |
2613 | return aspace; | |
2614 | } | |
2615 | } | |
6c95b8df PA |
2616 | |
2617 | /* Fall-back to the "main" address space of the inferior. */ | |
2618 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
2619 | ||
2620 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 2621 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
2622 | _("Can't determine the current " |
2623 | "address space of thread %s\n"), | |
6c95b8df PA |
2624 | target_pid_to_str (ptid)); |
2625 | ||
2626 | return inf->aspace; | |
2627 | } | |
2628 | ||
7313baad UW |
2629 | |
2630 | /* Target file operations. */ | |
2631 | ||
2632 | static struct target_ops * | |
2633 | default_fileio_target (void) | |
2634 | { | |
2635 | /* If we're already connected to something that can perform | |
2636 | file I/O, use it. Otherwise, try using the native target. */ | |
2637 | if (current_target.to_stratum >= process_stratum) | |
2638 | return current_target.beneath; | |
2639 | else | |
2640 | return find_default_run_target ("file I/O"); | |
2641 | } | |
2642 | ||
2643 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
2644 | target file descriptor, or -1 if an error occurs (and set | |
2645 | *TARGET_ERRNO). */ | |
2646 | int | |
2647 | target_fileio_open (const char *filename, int flags, int mode, | |
2648 | int *target_errno) | |
2649 | { | |
2650 | struct target_ops *t; | |
2651 | ||
2652 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2653 | { | |
2654 | if (t->to_fileio_open != NULL) | |
2655 | { | |
cd897586 | 2656 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
2657 | |
2658 | if (targetdebug) | |
2659 | fprintf_unfiltered (gdb_stdlog, | |
2660 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
2661 | filename, flags, mode, | |
2662 | fd, fd != -1 ? 0 : *target_errno); | |
2663 | return fd; | |
2664 | } | |
2665 | } | |
2666 | ||
2667 | *target_errno = FILEIO_ENOSYS; | |
2668 | return -1; | |
2669 | } | |
2670 | ||
2671 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
2672 | Return the number of bytes written, or -1 if an error occurs | |
2673 | (and set *TARGET_ERRNO). */ | |
2674 | int | |
2675 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
2676 | ULONGEST offset, int *target_errno) | |
2677 | { | |
2678 | struct target_ops *t; | |
2679 | ||
2680 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2681 | { | |
2682 | if (t->to_fileio_pwrite != NULL) | |
2683 | { | |
0d866f62 | 2684 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
2685 | target_errno); |
2686 | ||
2687 | if (targetdebug) | |
2688 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 2689 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 2690 | "= %d (%d)\n", |
a71b5a38 | 2691 | fd, len, pulongest (offset), |
7313baad UW |
2692 | ret, ret != -1 ? 0 : *target_errno); |
2693 | return ret; | |
2694 | } | |
2695 | } | |
2696 | ||
2697 | *target_errno = FILEIO_ENOSYS; | |
2698 | return -1; | |
2699 | } | |
2700 | ||
2701 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
2702 | Return the number of bytes read, or -1 if an error occurs | |
2703 | (and set *TARGET_ERRNO). */ | |
2704 | int | |
2705 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
2706 | ULONGEST offset, int *target_errno) | |
2707 | { | |
2708 | struct target_ops *t; | |
2709 | ||
2710 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2711 | { | |
2712 | if (t->to_fileio_pread != NULL) | |
2713 | { | |
a3be983c | 2714 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
2715 | target_errno); |
2716 | ||
2717 | if (targetdebug) | |
2718 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 2719 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 2720 | "= %d (%d)\n", |
a71b5a38 | 2721 | fd, len, pulongest (offset), |
7313baad UW |
2722 | ret, ret != -1 ? 0 : *target_errno); |
2723 | return ret; | |
2724 | } | |
2725 | } | |
2726 | ||
2727 | *target_errno = FILEIO_ENOSYS; | |
2728 | return -1; | |
2729 | } | |
2730 | ||
2731 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
2732 | (and set *TARGET_ERRNO). */ | |
2733 | int | |
2734 | target_fileio_close (int fd, int *target_errno) | |
2735 | { | |
2736 | struct target_ops *t; | |
2737 | ||
2738 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2739 | { | |
2740 | if (t->to_fileio_close != NULL) | |
2741 | { | |
df39ea25 | 2742 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
2743 | |
2744 | if (targetdebug) | |
2745 | fprintf_unfiltered (gdb_stdlog, | |
2746 | "target_fileio_close (%d) = %d (%d)\n", | |
2747 | fd, ret, ret != -1 ? 0 : *target_errno); | |
2748 | return ret; | |
2749 | } | |
2750 | } | |
2751 | ||
2752 | *target_errno = FILEIO_ENOSYS; | |
2753 | return -1; | |
2754 | } | |
2755 | ||
2756 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
2757 | occurs (and set *TARGET_ERRNO). */ | |
2758 | int | |
2759 | target_fileio_unlink (const char *filename, int *target_errno) | |
2760 | { | |
2761 | struct target_ops *t; | |
2762 | ||
2763 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2764 | { | |
2765 | if (t->to_fileio_unlink != NULL) | |
2766 | { | |
dbbca37d | 2767 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
2768 | |
2769 | if (targetdebug) | |
2770 | fprintf_unfiltered (gdb_stdlog, | |
2771 | "target_fileio_unlink (%s) = %d (%d)\n", | |
2772 | filename, ret, ret != -1 ? 0 : *target_errno); | |
2773 | return ret; | |
2774 | } | |
2775 | } | |
2776 | ||
2777 | *target_errno = FILEIO_ENOSYS; | |
2778 | return -1; | |
2779 | } | |
2780 | ||
b9e7b9c3 UW |
2781 | /* Read value of symbolic link FILENAME on the target. Return a |
2782 | null-terminated string allocated via xmalloc, or NULL if an error | |
2783 | occurs (and set *TARGET_ERRNO). */ | |
2784 | char * | |
2785 | target_fileio_readlink (const char *filename, int *target_errno) | |
2786 | { | |
2787 | struct target_ops *t; | |
2788 | ||
2789 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2790 | { | |
2791 | if (t->to_fileio_readlink != NULL) | |
2792 | { | |
fab5aa7c | 2793 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
2794 | |
2795 | if (targetdebug) | |
2796 | fprintf_unfiltered (gdb_stdlog, | |
2797 | "target_fileio_readlink (%s) = %s (%d)\n", | |
2798 | filename, ret? ret : "(nil)", | |
2799 | ret? 0 : *target_errno); | |
2800 | return ret; | |
2801 | } | |
2802 | } | |
2803 | ||
2804 | *target_errno = FILEIO_ENOSYS; | |
2805 | return NULL; | |
2806 | } | |
2807 | ||
7313baad UW |
2808 | static void |
2809 | target_fileio_close_cleanup (void *opaque) | |
2810 | { | |
2811 | int fd = *(int *) opaque; | |
2812 | int target_errno; | |
2813 | ||
2814 | target_fileio_close (fd, &target_errno); | |
2815 | } | |
2816 | ||
2817 | /* Read target file FILENAME. Store the result in *BUF_P and | |
2818 | return the size of the transferred data. PADDING additional bytes are | |
2819 | available in *BUF_P. This is a helper function for | |
2820 | target_fileio_read_alloc; see the declaration of that function for more | |
2821 | information. */ | |
2822 | ||
2823 | static LONGEST | |
2824 | target_fileio_read_alloc_1 (const char *filename, | |
2825 | gdb_byte **buf_p, int padding) | |
2826 | { | |
2827 | struct cleanup *close_cleanup; | |
2828 | size_t buf_alloc, buf_pos; | |
2829 | gdb_byte *buf; | |
2830 | LONGEST n; | |
2831 | int fd; | |
2832 | int target_errno; | |
2833 | ||
2834 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
2835 | if (fd == -1) | |
2836 | return -1; | |
2837 | ||
2838 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
2839 | ||
2840 | /* Start by reading up to 4K at a time. The target will throttle | |
2841 | this number down if necessary. */ | |
2842 | buf_alloc = 4096; | |
2843 | buf = xmalloc (buf_alloc); | |
2844 | buf_pos = 0; | |
2845 | while (1) | |
2846 | { | |
2847 | n = target_fileio_pread (fd, &buf[buf_pos], | |
2848 | buf_alloc - buf_pos - padding, buf_pos, | |
2849 | &target_errno); | |
2850 | if (n < 0) | |
2851 | { | |
2852 | /* An error occurred. */ | |
2853 | do_cleanups (close_cleanup); | |
2854 | xfree (buf); | |
2855 | return -1; | |
2856 | } | |
2857 | else if (n == 0) | |
2858 | { | |
2859 | /* Read all there was. */ | |
2860 | do_cleanups (close_cleanup); | |
2861 | if (buf_pos == 0) | |
2862 | xfree (buf); | |
2863 | else | |
2864 | *buf_p = buf; | |
2865 | return buf_pos; | |
2866 | } | |
2867 | ||
2868 | buf_pos += n; | |
2869 | ||
2870 | /* If the buffer is filling up, expand it. */ | |
2871 | if (buf_alloc < buf_pos * 2) | |
2872 | { | |
2873 | buf_alloc *= 2; | |
2874 | buf = xrealloc (buf, buf_alloc); | |
2875 | } | |
2876 | ||
2877 | QUIT; | |
2878 | } | |
2879 | } | |
2880 | ||
2881 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
2882 | the size of the transferred data. See the declaration in "target.h" | |
2883 | function for more information about the return value. */ | |
2884 | ||
2885 | LONGEST | |
2886 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
2887 | { | |
2888 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
2889 | } | |
2890 | ||
2891 | /* Read target file FILENAME. The result is NUL-terminated and | |
2892 | returned as a string, allocated using xmalloc. If an error occurs | |
2893 | or the transfer is unsupported, NULL is returned. Empty objects | |
2894 | are returned as allocated but empty strings. A warning is issued | |
2895 | if the result contains any embedded NUL bytes. */ | |
2896 | ||
2897 | char * | |
2898 | target_fileio_read_stralloc (const char *filename) | |
2899 | { | |
39086a0e PA |
2900 | gdb_byte *buffer; |
2901 | char *bufstr; | |
7313baad UW |
2902 | LONGEST i, transferred; |
2903 | ||
39086a0e PA |
2904 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
2905 | bufstr = (char *) buffer; | |
7313baad UW |
2906 | |
2907 | if (transferred < 0) | |
2908 | return NULL; | |
2909 | ||
2910 | if (transferred == 0) | |
2911 | return xstrdup (""); | |
2912 | ||
39086a0e | 2913 | bufstr[transferred] = 0; |
7313baad UW |
2914 | |
2915 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2916 | for (i = strlen (bufstr); i < transferred; i++) |
2917 | if (bufstr[i] != 0) | |
7313baad UW |
2918 | { |
2919 | warning (_("target file %s " | |
2920 | "contained unexpected null characters"), | |
2921 | filename); | |
2922 | break; | |
2923 | } | |
2924 | ||
39086a0e | 2925 | return bufstr; |
7313baad UW |
2926 | } |
2927 | ||
2928 | ||
e0d24f8d | 2929 | static int |
31568a15 TT |
2930 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
2931 | CORE_ADDR addr, int len) | |
e0d24f8d | 2932 | { |
f5656ead | 2933 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
2934 | } |
2935 | ||
5009afc5 AS |
2936 | static int |
2937 | default_watchpoint_addr_within_range (struct target_ops *target, | |
2938 | CORE_ADDR addr, | |
2939 | CORE_ADDR start, int length) | |
2940 | { | |
2941 | return addr >= start && addr < start + length; | |
2942 | } | |
2943 | ||
c2250ad1 UW |
2944 | static struct gdbarch * |
2945 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
2946 | { | |
f5656ead | 2947 | return target_gdbarch (); |
c2250ad1 UW |
2948 | } |
2949 | ||
c906108c | 2950 | static int |
555bbdeb TT |
2951 | return_zero (struct target_ops *ignore) |
2952 | { | |
2953 | return 0; | |
2954 | } | |
2955 | ||
2956 | static int | |
2957 | return_zero_has_execution (struct target_ops *ignore, ptid_t ignore2) | |
c906108c SS |
2958 | { |
2959 | return 0; | |
2960 | } | |
2961 | ||
ed9a39eb JM |
2962 | /* |
2963 | * Find the next target down the stack from the specified target. | |
2964 | */ | |
2965 | ||
2966 | struct target_ops * | |
fba45db2 | 2967 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 2968 | { |
258b763a | 2969 | return t->beneath; |
ed9a39eb JM |
2970 | } |
2971 | ||
8b06beed TT |
2972 | /* See target.h. */ |
2973 | ||
2974 | struct target_ops * | |
2975 | find_target_at (enum strata stratum) | |
2976 | { | |
2977 | struct target_ops *t; | |
2978 | ||
2979 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2980 | if (t->to_stratum == stratum) | |
2981 | return t; | |
2982 | ||
2983 | return NULL; | |
2984 | } | |
2985 | ||
c906108c SS |
2986 | \f |
2987 | /* The inferior process has died. Long live the inferior! */ | |
2988 | ||
2989 | void | |
fba45db2 | 2990 | generic_mourn_inferior (void) |
c906108c | 2991 | { |
7f9f62ba | 2992 | ptid_t ptid; |
c906108c | 2993 | |
7f9f62ba | 2994 | ptid = inferior_ptid; |
39f77062 | 2995 | inferior_ptid = null_ptid; |
7f9f62ba | 2996 | |
f59f708a PA |
2997 | /* Mark breakpoints uninserted in case something tries to delete a |
2998 | breakpoint while we delete the inferior's threads (which would | |
2999 | fail, since the inferior is long gone). */ | |
3000 | mark_breakpoints_out (); | |
3001 | ||
7f9f62ba PA |
3002 | if (!ptid_equal (ptid, null_ptid)) |
3003 | { | |
3004 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3005 | exit_inferior (pid); |
7f9f62ba PA |
3006 | } |
3007 | ||
f59f708a PA |
3008 | /* Note this wipes step-resume breakpoints, so needs to be done |
3009 | after exit_inferior, which ends up referencing the step-resume | |
3010 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3011 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3012 | |
c906108c SS |
3013 | registers_changed (); |
3014 | ||
c906108c SS |
3015 | reopen_exec_file (); |
3016 | reinit_frame_cache (); | |
3017 | ||
9a4105ab AC |
3018 | if (deprecated_detach_hook) |
3019 | deprecated_detach_hook (); | |
c906108c SS |
3020 | } |
3021 | \f | |
fd0a2a6f MK |
3022 | /* Convert a normal process ID to a string. Returns the string in a |
3023 | static buffer. */ | |
c906108c SS |
3024 | |
3025 | char * | |
39f77062 | 3026 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3027 | { |
fd0a2a6f | 3028 | static char buf[32]; |
c906108c | 3029 | |
5fff8fc0 | 3030 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3031 | return buf; |
3032 | } | |
3033 | ||
2c0b251b | 3034 | static char * |
770234d3 | 3035 | default_pid_to_str (struct target_ops *ops, ptid_t ptid) |
117de6a9 PA |
3036 | { |
3037 | return normal_pid_to_str (ptid); | |
3038 | } | |
3039 | ||
9b4eba8e HZ |
3040 | /* Error-catcher for target_find_memory_regions. */ |
3041 | static int | |
2e73927c TT |
3042 | dummy_find_memory_regions (struct target_ops *self, |
3043 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3044 | { |
9b4eba8e | 3045 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3046 | return 0; |
3047 | } | |
3048 | ||
9b4eba8e HZ |
3049 | /* Error-catcher for target_make_corefile_notes. */ |
3050 | static char * | |
fc6691b2 TT |
3051 | dummy_make_corefile_notes (struct target_ops *self, |
3052 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3053 | { |
9b4eba8e | 3054 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3055 | return NULL; |
3056 | } | |
3057 | ||
c906108c SS |
3058 | /* Set up the handful of non-empty slots needed by the dummy target |
3059 | vector. */ | |
3060 | ||
3061 | static void | |
fba45db2 | 3062 | init_dummy_target (void) |
c906108c SS |
3063 | { |
3064 | dummy_target.to_shortname = "None"; | |
3065 | dummy_target.to_longname = "None"; | |
3066 | dummy_target.to_doc = ""; | |
03583c20 UW |
3067 | dummy_target.to_supports_disable_randomization |
3068 | = find_default_supports_disable_randomization; | |
c906108c | 3069 | dummy_target.to_stratum = dummy_stratum; |
555bbdeb TT |
3070 | dummy_target.to_has_all_memory = return_zero; |
3071 | dummy_target.to_has_memory = return_zero; | |
3072 | dummy_target.to_has_stack = return_zero; | |
3073 | dummy_target.to_has_registers = return_zero; | |
3074 | dummy_target.to_has_execution = return_zero_has_execution; | |
c906108c | 3075 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3076 | |
3077 | install_dummy_methods (&dummy_target); | |
c906108c | 3078 | } |
c906108c | 3079 | \f |
c906108c | 3080 | static void |
fba45db2 | 3081 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3082 | { |
3083 | debug_target.to_open (args, from_tty); | |
3084 | ||
96baa820 | 3085 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3086 | } |
3087 | ||
f1c07ab0 | 3088 | void |
460014f5 | 3089 | target_close (struct target_ops *targ) |
f1c07ab0 | 3090 | { |
7fdc1521 TT |
3091 | gdb_assert (!target_is_pushed (targ)); |
3092 | ||
f1c07ab0 | 3093 | if (targ->to_xclose != NULL) |
460014f5 | 3094 | targ->to_xclose (targ); |
f1c07ab0 | 3095 | else if (targ->to_close != NULL) |
de90e03d | 3096 | targ->to_close (targ); |
947b8855 PA |
3097 | |
3098 | if (targetdebug) | |
460014f5 | 3099 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3100 | } |
3101 | ||
28439f5e PA |
3102 | int |
3103 | target_thread_alive (ptid_t ptid) | |
c906108c | 3104 | { |
cbffc065 | 3105 | int retval; |
28439f5e | 3106 | |
cbffc065 TT |
3107 | retval = current_target.to_thread_alive (¤t_target, ptid); |
3108 | if (targetdebug) | |
3109 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3110 | ptid_get_pid (ptid), retval); | |
28439f5e | 3111 | |
cbffc065 | 3112 | return retval; |
28439f5e PA |
3113 | } |
3114 | ||
3115 | void | |
3116 | target_find_new_threads (void) | |
3117 | { | |
09b0dc2b TT |
3118 | current_target.to_find_new_threads (¤t_target); |
3119 | if (targetdebug) | |
3120 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
c906108c SS |
3121 | } |
3122 | ||
d914c394 SS |
3123 | void |
3124 | target_stop (ptid_t ptid) | |
3125 | { | |
3126 | if (!may_stop) | |
3127 | { | |
3128 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3129 | return; | |
3130 | } | |
3131 | ||
1eab8a48 | 3132 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3133 | } |
3134 | ||
c906108c | 3135 | static void |
f045800c | 3136 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3137 | { |
f045800c | 3138 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3139 | |
28439f5e | 3140 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3141 | } |
3142 | ||
09826ec5 PA |
3143 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3144 | result. The LIST incoming argument is released. */ | |
3145 | ||
3146 | static char * | |
3147 | str_comma_list_concat_elem (char *list, const char *elem) | |
3148 | { | |
3149 | if (list == NULL) | |
3150 | return xstrdup (elem); | |
3151 | else | |
3152 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3153 | } | |
3154 | ||
3155 | /* Helper for target_options_to_string. If OPT is present in | |
3156 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3157 | Returns the new resulting string. OPT is removed from | |
3158 | TARGET_OPTIONS. */ | |
3159 | ||
3160 | static char * | |
3161 | do_option (int *target_options, char *ret, | |
3162 | int opt, char *opt_str) | |
3163 | { | |
3164 | if ((*target_options & opt) != 0) | |
3165 | { | |
3166 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3167 | *target_options &= ~opt; | |
3168 | } | |
3169 | ||
3170 | return ret; | |
3171 | } | |
3172 | ||
3173 | char * | |
3174 | target_options_to_string (int target_options) | |
3175 | { | |
3176 | char *ret = NULL; | |
3177 | ||
3178 | #define DO_TARG_OPTION(OPT) \ | |
3179 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3180 | ||
3181 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3182 | ||
3183 | if (target_options != 0) | |
3184 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3185 | ||
3186 | if (ret == NULL) | |
3187 | ret = xstrdup (""); | |
3188 | return ret; | |
3189 | } | |
3190 | ||
bf0c5130 | 3191 | static void |
56be3814 UW |
3192 | debug_print_register (const char * func, |
3193 | struct regcache *regcache, int regno) | |
bf0c5130 | 3194 | { |
f8d29908 | 3195 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3196 | |
bf0c5130 | 3197 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3198 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3199 | && gdbarch_register_name (gdbarch, regno) != NULL |
3200 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3201 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3202 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3203 | else |
3204 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3205 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3206 | { |
e17a4113 | 3207 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3208 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3209 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3210 | |
0ff58721 | 3211 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3212 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3213 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3214 | { |
3215 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3216 | } | |
81c4a259 | 3217 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3218 | { |
e17a4113 | 3219 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3220 | |
0b1553bc UW |
3221 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3222 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3223 | } |
3224 | } | |
3225 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3226 | } | |
3227 | ||
28439f5e PA |
3228 | void |
3229 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3230 | { |
ad5989bd TT |
3231 | current_target.to_fetch_registers (¤t_target, regcache, regno); |
3232 | if (targetdebug) | |
3233 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
3234 | } |
3235 | ||
28439f5e PA |
3236 | void |
3237 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3238 | { |
28439f5e | 3239 | struct target_ops *t; |
5d502164 | 3240 | |
d914c394 SS |
3241 | if (!may_write_registers) |
3242 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3243 | ||
6b84065d TT |
3244 | current_target.to_store_registers (¤t_target, regcache, regno); |
3245 | if (targetdebug) | |
28439f5e | 3246 | { |
6b84065d | 3247 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3248 | } |
c906108c SS |
3249 | } |
3250 | ||
dc146f7c VP |
3251 | int |
3252 | target_core_of_thread (ptid_t ptid) | |
3253 | { | |
9e538d0d | 3254 | int retval = current_target.to_core_of_thread (¤t_target, ptid); |
dc146f7c | 3255 | |
9e538d0d TT |
3256 | if (targetdebug) |
3257 | fprintf_unfiltered (gdb_stdlog, | |
3258 | "target_core_of_thread (%d) = %d\n", | |
3259 | ptid_get_pid (ptid), retval); | |
3260 | return retval; | |
dc146f7c VP |
3261 | } |
3262 | ||
4a5e7a5b PA |
3263 | int |
3264 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3265 | { | |
eb276a6b TT |
3266 | int retval = current_target.to_verify_memory (¤t_target, |
3267 | data, memaddr, size); | |
5d502164 | 3268 | |
eb276a6b TT |
3269 | if (targetdebug) |
3270 | fprintf_unfiltered (gdb_stdlog, | |
3271 | "target_verify_memory (%s, %s) = %d\n", | |
3272 | paddress (target_gdbarch (), memaddr), | |
3273 | pulongest (size), | |
3274 | retval); | |
3275 | return retval; | |
4a5e7a5b PA |
3276 | } |
3277 | ||
9c06b0b4 TJB |
3278 | /* The documentation for this function is in its prototype declaration in |
3279 | target.h. */ | |
3280 | ||
3281 | int | |
3282 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3283 | { | |
cd4ae029 | 3284 | int ret; |
9c06b0b4 | 3285 | |
cd4ae029 TT |
3286 | ret = current_target.to_insert_mask_watchpoint (¤t_target, |
3287 | addr, mask, rw); | |
9c06b0b4 | 3288 | |
cd4ae029 TT |
3289 | if (targetdebug) |
3290 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3291 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", |
cd4ae029 TT |
3292 | core_addr_to_string (addr), |
3293 | core_addr_to_string (mask), rw, ret); | |
3294 | ||
3295 | return ret; | |
9c06b0b4 TJB |
3296 | } |
3297 | ||
3298 | /* The documentation for this function is in its prototype declaration in | |
3299 | target.h. */ | |
3300 | ||
3301 | int | |
3302 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3303 | { | |
8b1c364c | 3304 | int ret; |
9c06b0b4 | 3305 | |
8b1c364c TT |
3306 | ret = current_target.to_remove_mask_watchpoint (¤t_target, |
3307 | addr, mask, rw); | |
9c06b0b4 | 3308 | |
8b1c364c TT |
3309 | if (targetdebug) |
3310 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3311 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", |
8b1c364c TT |
3312 | core_addr_to_string (addr), |
3313 | core_addr_to_string (mask), rw, ret); | |
9c06b0b4 | 3314 | |
8b1c364c | 3315 | return ret; |
9c06b0b4 TJB |
3316 | } |
3317 | ||
3318 | /* The documentation for this function is in its prototype declaration | |
3319 | in target.h. */ | |
3320 | ||
3321 | int | |
3322 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3323 | { | |
6c7e5e5c TT |
3324 | return current_target.to_masked_watch_num_registers (¤t_target, |
3325 | addr, mask); | |
9c06b0b4 TJB |
3326 | } |
3327 | ||
f1310107 TJB |
3328 | /* The documentation for this function is in its prototype declaration |
3329 | in target.h. */ | |
3330 | ||
3331 | int | |
3332 | target_ranged_break_num_registers (void) | |
3333 | { | |
a134316b | 3334 | return current_target.to_ranged_break_num_registers (¤t_target); |
f1310107 TJB |
3335 | } |
3336 | ||
02d27625 MM |
3337 | /* See target.h. */ |
3338 | ||
02d27625 MM |
3339 | struct btrace_target_info * |
3340 | target_enable_btrace (ptid_t ptid) | |
3341 | { | |
6dc7fcf4 | 3342 | return current_target.to_enable_btrace (¤t_target, ptid); |
02d27625 MM |
3343 | } |
3344 | ||
3345 | /* See target.h. */ | |
3346 | ||
3347 | void | |
3348 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3349 | { | |
8dc292d3 | 3350 | current_target.to_disable_btrace (¤t_target, btinfo); |
02d27625 MM |
3351 | } |
3352 | ||
3353 | /* See target.h. */ | |
3354 | ||
3355 | void | |
3356 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
3357 | { | |
9ace480d | 3358 | current_target.to_teardown_btrace (¤t_target, btinfo); |
02d27625 MM |
3359 | } |
3360 | ||
3361 | /* See target.h. */ | |
3362 | ||
969c39fb MM |
3363 | enum btrace_error |
3364 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
3365 | struct btrace_target_info *btinfo, | |
02d27625 MM |
3366 | enum btrace_read_type type) |
3367 | { | |
eb5b20d4 | 3368 | return current_target.to_read_btrace (¤t_target, btrace, btinfo, type); |
02d27625 MM |
3369 | } |
3370 | ||
d02ed0bb MM |
3371 | /* See target.h. */ |
3372 | ||
7c1687a9 MM |
3373 | void |
3374 | target_stop_recording (void) | |
3375 | { | |
ee97f592 | 3376 | current_target.to_stop_recording (¤t_target); |
7c1687a9 MM |
3377 | } |
3378 | ||
3379 | /* See target.h. */ | |
3380 | ||
d02ed0bb MM |
3381 | void |
3382 | target_info_record (void) | |
3383 | { | |
3384 | struct target_ops *t; | |
3385 | ||
3386 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3387 | if (t->to_info_record != NULL) | |
3388 | { | |
630d6a4a | 3389 | t->to_info_record (t); |
d02ed0bb MM |
3390 | return; |
3391 | } | |
3392 | ||
3393 | tcomplain (); | |
3394 | } | |
3395 | ||
3396 | /* See target.h. */ | |
3397 | ||
3398 | void | |
85e1311a | 3399 | target_save_record (const char *filename) |
d02ed0bb | 3400 | { |
f09e2107 | 3401 | current_target.to_save_record (¤t_target, filename); |
d02ed0bb MM |
3402 | } |
3403 | ||
3404 | /* See target.h. */ | |
3405 | ||
3406 | int | |
3407 | target_supports_delete_record (void) | |
3408 | { | |
3409 | struct target_ops *t; | |
3410 | ||
3411 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3412 | if (t->to_delete_record != NULL) | |
3413 | return 1; | |
3414 | ||
3415 | return 0; | |
3416 | } | |
3417 | ||
3418 | /* See target.h. */ | |
3419 | ||
3420 | void | |
3421 | target_delete_record (void) | |
3422 | { | |
07366925 | 3423 | current_target.to_delete_record (¤t_target); |
d02ed0bb MM |
3424 | } |
3425 | ||
3426 | /* See target.h. */ | |
3427 | ||
3428 | int | |
3429 | target_record_is_replaying (void) | |
3430 | { | |
dd2e9d25 | 3431 | return current_target.to_record_is_replaying (¤t_target); |
d02ed0bb MM |
3432 | } |
3433 | ||
3434 | /* See target.h. */ | |
3435 | ||
3436 | void | |
3437 | target_goto_record_begin (void) | |
3438 | { | |
671e76cc | 3439 | current_target.to_goto_record_begin (¤t_target); |
d02ed0bb MM |
3440 | } |
3441 | ||
3442 | /* See target.h. */ | |
3443 | ||
3444 | void | |
3445 | target_goto_record_end (void) | |
3446 | { | |
e9179bb3 | 3447 | current_target.to_goto_record_end (¤t_target); |
d02ed0bb MM |
3448 | } |
3449 | ||
3450 | /* See target.h. */ | |
3451 | ||
3452 | void | |
3453 | target_goto_record (ULONGEST insn) | |
3454 | { | |
05969c84 | 3455 | current_target.to_goto_record (¤t_target, insn); |
d02ed0bb MM |
3456 | } |
3457 | ||
67c86d06 MM |
3458 | /* See target.h. */ |
3459 | ||
3460 | void | |
3461 | target_insn_history (int size, int flags) | |
3462 | { | |
3679abfa | 3463 | current_target.to_insn_history (¤t_target, size, flags); |
67c86d06 MM |
3464 | } |
3465 | ||
3466 | /* See target.h. */ | |
3467 | ||
3468 | void | |
3469 | target_insn_history_from (ULONGEST from, int size, int flags) | |
3470 | { | |
8444ab58 | 3471 | current_target.to_insn_history_from (¤t_target, from, size, flags); |
67c86d06 MM |
3472 | } |
3473 | ||
3474 | /* See target.h. */ | |
3475 | ||
3476 | void | |
3477 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3478 | { | |
c29302cc | 3479 | current_target.to_insn_history_range (¤t_target, begin, end, flags); |
67c86d06 MM |
3480 | } |
3481 | ||
15984c13 MM |
3482 | /* See target.h. */ |
3483 | ||
3484 | void | |
3485 | target_call_history (int size, int flags) | |
3486 | { | |
170049d4 | 3487 | current_target.to_call_history (¤t_target, size, flags); |
15984c13 MM |
3488 | } |
3489 | ||
3490 | /* See target.h. */ | |
3491 | ||
3492 | void | |
3493 | target_call_history_from (ULONGEST begin, int size, int flags) | |
3494 | { | |
16fc27d6 | 3495 | current_target.to_call_history_from (¤t_target, begin, size, flags); |
15984c13 MM |
3496 | } |
3497 | ||
3498 | /* See target.h. */ | |
3499 | ||
3500 | void | |
3501 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3502 | { | |
115d9817 | 3503 | current_target.to_call_history_range (¤t_target, begin, end, flags); |
15984c13 MM |
3504 | } |
3505 | ||
c906108c | 3506 | static void |
f32dbf8c | 3507 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 3508 | { |
f32dbf8c | 3509 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 3510 | |
96baa820 | 3511 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
3512 | } |
3513 | ||
ea001bdc MM |
3514 | /* See target.h. */ |
3515 | ||
3516 | const struct frame_unwind * | |
3517 | target_get_unwinder (void) | |
3518 | { | |
ac01945b | 3519 | return current_target.to_get_unwinder (¤t_target); |
ea001bdc MM |
3520 | } |
3521 | ||
3522 | /* See target.h. */ | |
3523 | ||
3524 | const struct frame_unwind * | |
3525 | target_get_tailcall_unwinder (void) | |
3526 | { | |
ac01945b | 3527 | return current_target.to_get_tailcall_unwinder (¤t_target); |
ea001bdc MM |
3528 | } |
3529 | ||
c0eca49f | 3530 | /* Default implementation of to_decr_pc_after_break. */ |
118e6252 | 3531 | |
c0eca49f TT |
3532 | static CORE_ADDR |
3533 | default_target_decr_pc_after_break (struct target_ops *ops, | |
118e6252 MM |
3534 | struct gdbarch *gdbarch) |
3535 | { | |
118e6252 MM |
3536 | return gdbarch_decr_pc_after_break (gdbarch); |
3537 | } | |
3538 | ||
3539 | /* See target.h. */ | |
3540 | ||
3541 | CORE_ADDR | |
3542 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
3543 | { | |
c0eca49f | 3544 | return current_target.to_decr_pc_after_break (¤t_target, gdbarch); |
118e6252 MM |
3545 | } |
3546 | ||
c906108c | 3547 | static void |
fba45db2 | 3548 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
3549 | { |
3550 | debug_target.to_files_info (target); | |
3551 | ||
96baa820 | 3552 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
3553 | } |
3554 | ||
3555 | static int | |
3db08215 | 3556 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 3557 | struct bp_target_info *bp_tgt) |
c906108c SS |
3558 | { |
3559 | int retval; | |
3560 | ||
6b84065d | 3561 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 3562 | |
96baa820 | 3563 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
3564 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
3565 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 3566 | (unsigned long) retval); |
c906108c SS |
3567 | return retval; |
3568 | } | |
3569 | ||
3570 | static int | |
3db08215 | 3571 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 3572 | struct bp_target_info *bp_tgt) |
c906108c SS |
3573 | { |
3574 | int retval; | |
3575 | ||
6b84065d | 3576 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 3577 | |
96baa820 | 3578 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
3579 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
3580 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 3581 | (unsigned long) retval); |
c906108c SS |
3582 | return retval; |
3583 | } | |
3584 | ||
ccaa32c7 | 3585 | static int |
5461485a TT |
3586 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
3587 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
3588 | { |
3589 | int retval; | |
3590 | ||
5461485a TT |
3591 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
3592 | type, cnt, from_tty); | |
ccaa32c7 GS |
3593 | |
3594 | fprintf_unfiltered (gdb_stdlog, | |
3595 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
3596 | (unsigned long) type, | |
3597 | (unsigned long) cnt, | |
3598 | (unsigned long) from_tty, | |
3599 | (unsigned long) retval); | |
3600 | return retval; | |
3601 | } | |
3602 | ||
e0d24f8d | 3603 | static int |
31568a15 TT |
3604 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
3605 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
3606 | { |
3607 | CORE_ADDR retval; | |
3608 | ||
31568a15 TT |
3609 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
3610 | addr, len); | |
e0d24f8d WZ |
3611 | |
3612 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3613 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
3614 | core_addr_to_string (addr), (unsigned long) len, | |
3615 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
3616 | return retval; |
3617 | } | |
3618 | ||
0cf6dd15 | 3619 | static int |
c3a5ff89 TT |
3620 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
3621 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
3622 | struct expression *cond) |
3623 | { | |
3624 | int retval; | |
3625 | ||
c3a5ff89 TT |
3626 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
3627 | addr, len, | |
3e43a32a | 3628 | rw, cond); |
0cf6dd15 TJB |
3629 | |
3630 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
3631 | "target_can_accel_watchpoint_condition " |
3632 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
3633 | core_addr_to_string (addr), len, rw, |
3634 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
3635 | return retval; |
3636 | } | |
3637 | ||
ccaa32c7 | 3638 | static int |
6a109b6b | 3639 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
3640 | { |
3641 | int retval; | |
3642 | ||
6a109b6b | 3643 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
3644 | |
3645 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 3646 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
3647 | (unsigned long) retval); |
3648 | return retval; | |
3649 | } | |
3650 | ||
4aa7a7f5 JJ |
3651 | static int |
3652 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 3653 | { |
4aa7a7f5 | 3654 | int retval; |
ccaa32c7 | 3655 | |
4aa7a7f5 | 3656 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
3657 | |
3658 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3659 | "target_stopped_data_address ([%s]) = %ld\n", |
3660 | core_addr_to_string (*addr), | |
4aa7a7f5 | 3661 | (unsigned long)retval); |
ccaa32c7 GS |
3662 | return retval; |
3663 | } | |
3664 | ||
5009afc5 AS |
3665 | static int |
3666 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
3667 | CORE_ADDR addr, | |
3668 | CORE_ADDR start, int length) | |
3669 | { | |
3670 | int retval; | |
3671 | ||
3672 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
3673 | start, length); | |
3674 | ||
3675 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
3676 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
3677 | core_addr_to_string (addr), core_addr_to_string (start), | |
3678 | length, retval); | |
5009afc5 AS |
3679 | return retval; |
3680 | } | |
3681 | ||
ccaa32c7 | 3682 | static int |
23a26771 TT |
3683 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
3684 | struct gdbarch *gdbarch, | |
a6d9a66e | 3685 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
3686 | { |
3687 | int retval; | |
3688 | ||
23a26771 TT |
3689 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
3690 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
3691 | |
3692 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3693 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
3694 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
3695 | (unsigned long) retval); |
3696 | return retval; | |
3697 | } | |
3698 | ||
3699 | static int | |
a64dc96c TT |
3700 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
3701 | struct gdbarch *gdbarch, | |
a6d9a66e | 3702 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
3703 | { |
3704 | int retval; | |
3705 | ||
a64dc96c TT |
3706 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
3707 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
3708 | |
3709 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3710 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
3711 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
3712 | (unsigned long) retval); |
3713 | return retval; | |
3714 | } | |
3715 | ||
3716 | static int | |
7bb99c53 TT |
3717 | debug_to_insert_watchpoint (struct target_ops *self, |
3718 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 3719 | struct expression *cond) |
ccaa32c7 GS |
3720 | { |
3721 | int retval; | |
3722 | ||
7bb99c53 TT |
3723 | retval = debug_target.to_insert_watchpoint (&debug_target, |
3724 | addr, len, type, cond); | |
ccaa32c7 GS |
3725 | |
3726 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3727 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
3728 | core_addr_to_string (addr), len, type, | |
3729 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
3730 | return retval; |
3731 | } | |
3732 | ||
3733 | static int | |
11b5219a TT |
3734 | debug_to_remove_watchpoint (struct target_ops *self, |
3735 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 3736 | struct expression *cond) |
ccaa32c7 GS |
3737 | { |
3738 | int retval; | |
3739 | ||
11b5219a TT |
3740 | retval = debug_target.to_remove_watchpoint (&debug_target, |
3741 | addr, len, type, cond); | |
ccaa32c7 GS |
3742 | |
3743 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3744 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
3745 | core_addr_to_string (addr), len, type, | |
3746 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
3747 | return retval; |
3748 | } | |
3749 | ||
c906108c | 3750 | static void |
c42bf286 | 3751 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 3752 | { |
c42bf286 | 3753 | debug_target.to_terminal_init (&debug_target); |
c906108c | 3754 | |
96baa820 | 3755 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
3756 | } |
3757 | ||
3758 | static void | |
d2f640d4 | 3759 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 3760 | { |
d2f640d4 | 3761 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 3762 | |
96baa820 | 3763 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
3764 | } |
3765 | ||
3766 | static void | |
2e1e1a19 | 3767 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 3768 | { |
2e1e1a19 | 3769 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 3770 | |
96baa820 | 3771 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
3772 | } |
3773 | ||
3774 | static void | |
e3594fd1 | 3775 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 3776 | { |
e3594fd1 | 3777 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 3778 | |
96baa820 | 3779 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
3780 | } |
3781 | ||
a790ad35 | 3782 | static void |
ae3bd431 | 3783 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 3784 | { |
ae3bd431 | 3785 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
3786 | |
3787 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
3788 | } | |
3789 | ||
c906108c | 3790 | static void |
0a4f40a2 TT |
3791 | debug_to_terminal_info (struct target_ops *self, |
3792 | const char *arg, int from_tty) | |
c906108c | 3793 | { |
0a4f40a2 | 3794 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 3795 | |
96baa820 | 3796 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
3797 | from_tty); |
3798 | } | |
3799 | ||
c906108c | 3800 | static void |
71a9f134 | 3801 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 3802 | { |
71a9f134 | 3803 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 3804 | |
96baa820 | 3805 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
3806 | } |
3807 | ||
c906108c | 3808 | static void |
2e97a79e | 3809 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 3810 | { |
2e97a79e | 3811 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 3812 | |
96baa820 | 3813 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 3814 | ptid_get_pid (ptid)); |
c906108c SS |
3815 | } |
3816 | ||
77b06cd7 | 3817 | static int |
a863b201 | 3818 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3819 | { |
77b06cd7 TJB |
3820 | int retval; |
3821 | ||
a863b201 | 3822 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
3823 | |
3824 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
3825 | pid, retval); | |
c906108c | 3826 | |
77b06cd7 | 3827 | return retval; |
c906108c SS |
3828 | } |
3829 | ||
3830 | static int | |
973fc227 | 3831 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3832 | { |
c5aa993b | 3833 | int retval; |
c906108c | 3834 | |
973fc227 | 3835 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 3836 | |
96baa820 | 3837 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 3838 | pid, retval); |
c906108c SS |
3839 | |
3840 | return retval; | |
3841 | } | |
3842 | ||
77b06cd7 | 3843 | static int |
3ecc7da0 | 3844 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3845 | { |
77b06cd7 TJB |
3846 | int retval; |
3847 | ||
3ecc7da0 | 3848 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 3849 | |
77b06cd7 TJB |
3850 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
3851 | pid, retval); | |
3852 | ||
3853 | return retval; | |
c906108c SS |
3854 | } |
3855 | ||
3856 | static int | |
e98cf0cd | 3857 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3858 | { |
c5aa993b | 3859 | int retval; |
c906108c | 3860 | |
e98cf0cd | 3861 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 3862 | |
96baa820 | 3863 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 3864 | pid, retval); |
c906108c SS |
3865 | |
3866 | return retval; | |
3867 | } | |
3868 | ||
77b06cd7 | 3869 | static int |
ba025e51 | 3870 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 3871 | { |
77b06cd7 TJB |
3872 | int retval; |
3873 | ||
ba025e51 | 3874 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 3875 | |
77b06cd7 TJB |
3876 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
3877 | pid, retval); | |
3878 | ||
3879 | return retval; | |
c906108c SS |
3880 | } |
3881 | ||
3882 | static int | |
758e29d2 | 3883 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 3884 | { |
c5aa993b | 3885 | int retval; |
c906108c | 3886 | |
758e29d2 | 3887 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 3888 | |
96baa820 | 3889 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 3890 | pid, retval); |
c906108c SS |
3891 | |
3892 | return retval; | |
3893 | } | |
3894 | ||
c906108c | 3895 | static int |
d796e1d6 TT |
3896 | debug_to_has_exited (struct target_ops *self, |
3897 | int pid, int wait_status, int *exit_status) | |
c906108c | 3898 | { |
c5aa993b | 3899 | int has_exited; |
c906108c | 3900 | |
d796e1d6 TT |
3901 | has_exited = debug_target.to_has_exited (&debug_target, |
3902 | pid, wait_status, exit_status); | |
c906108c | 3903 | |
96baa820 | 3904 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 3905 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
3906 | |
3907 | return has_exited; | |
3908 | } | |
3909 | ||
c906108c | 3910 | static int |
da82bd6b | 3911 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
3912 | { |
3913 | int retval; | |
3914 | ||
da82bd6b | 3915 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 3916 | |
96baa820 | 3917 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
3918 | |
3919 | return retval; | |
3920 | } | |
3921 | ||
c2250ad1 UW |
3922 | static struct gdbarch * |
3923 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3924 | { | |
3925 | struct gdbarch *retval; | |
3926 | ||
3927 | retval = debug_target.to_thread_architecture (ops, ptid); | |
3928 | ||
3e43a32a MS |
3929 | fprintf_unfiltered (gdb_stdlog, |
3930 | "target_thread_architecture (%s) = %s [%s]\n", | |
3931 | target_pid_to_str (ptid), | |
3932 | host_address_to_string (retval), | |
c2250ad1 UW |
3933 | gdbarch_bfd_arch_info (retval)->printable_name); |
3934 | return retval; | |
3935 | } | |
3936 | ||
c906108c | 3937 | static void |
1eab8a48 | 3938 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 3939 | { |
1eab8a48 | 3940 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 3941 | |
94cc34af PA |
3942 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
3943 | target_pid_to_str (ptid)); | |
c906108c SS |
3944 | } |
3945 | ||
96baa820 | 3946 | static void |
1aac633b | 3947 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 3948 | struct ui_file *outbuf) |
96baa820 | 3949 | { |
1aac633b | 3950 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
3951 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
3952 | } | |
3953 | ||
c906108c | 3954 | static char * |
8dd27370 | 3955 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 3956 | { |
c5aa993b | 3957 | char *exec_file; |
c906108c | 3958 | |
8dd27370 | 3959 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 3960 | |
96baa820 | 3961 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 3962 | pid, exec_file); |
c906108c SS |
3963 | |
3964 | return exec_file; | |
3965 | } | |
3966 | ||
c906108c | 3967 | static void |
fba45db2 | 3968 | setup_target_debug (void) |
c906108c SS |
3969 | { |
3970 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
3971 | ||
3972 | current_target.to_open = debug_to_open; | |
c906108c | 3973 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 3974 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c906108c SS |
3975 | current_target.to_files_info = debug_to_files_info; |
3976 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
3977 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
3978 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
3979 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
3980 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
3981 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
3982 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
3983 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
3984 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
3985 | current_target.to_watchpoint_addr_within_range |
3986 | = debug_to_watchpoint_addr_within_range; | |
3987 | current_target.to_region_ok_for_hw_watchpoint | |
3988 | = debug_to_region_ok_for_hw_watchpoint; | |
3989 | current_target.to_can_accel_watchpoint_condition | |
3990 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
3991 | current_target.to_terminal_init = debug_to_terminal_init; |
3992 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
3993 | current_target.to_terminal_ours_for_output |
3994 | = debug_to_terminal_ours_for_output; | |
c906108c | 3995 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 3996 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 3997 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 3998 | current_target.to_load = debug_to_load; |
c906108c | 3999 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4000 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4001 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4002 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4003 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4004 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4005 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4006 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4007 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4008 | current_target.to_stop = debug_to_stop; |
96baa820 | 4009 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4010 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4011 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4012 | } |
c906108c | 4013 | \f |
c5aa993b JM |
4014 | |
4015 | static char targ_desc[] = | |
3e43a32a MS |
4016 | "Names of targets and files being debugged.\nShows the entire \ |
4017 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4018 | core-file, and process, if any), as well as the symbol file name."; |
4019 | ||
a53f3625 TT |
4020 | static void |
4021 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4022 | { | |
4023 | error (_("\"monitor\" command not supported by this target.")); | |
4024 | } | |
4025 | ||
96baa820 JM |
4026 | static void |
4027 | do_monitor_command (char *cmd, | |
4028 | int from_tty) | |
4029 | { | |
96baa820 JM |
4030 | target_rcmd (cmd, gdb_stdtarg); |
4031 | } | |
4032 | ||
87680a14 JB |
4033 | /* Print the name of each layers of our target stack. */ |
4034 | ||
4035 | static void | |
4036 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4037 | { | |
4038 | struct target_ops *t; | |
4039 | ||
4040 | printf_filtered (_("The current target stack is:\n")); | |
4041 | ||
4042 | for (t = target_stack; t != NULL; t = t->beneath) | |
4043 | { | |
4044 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4045 | } | |
4046 | } | |
4047 | ||
c6ebd6cf VP |
4048 | /* Controls if async mode is permitted. */ |
4049 | int target_async_permitted = 0; | |
4050 | ||
4051 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4052 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4053 | static int target_async_permitted_1 = 0; |
4054 | ||
4055 | static void | |
9401a810 PA |
4056 | set_target_async_command (char *args, int from_tty, |
4057 | struct cmd_list_element *c) | |
c6ebd6cf | 4058 | { |
c35b1492 | 4059 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4060 | { |
4061 | target_async_permitted_1 = target_async_permitted; | |
4062 | error (_("Cannot change this setting while the inferior is running.")); | |
4063 | } | |
4064 | ||
4065 | target_async_permitted = target_async_permitted_1; | |
4066 | } | |
4067 | ||
4068 | static void | |
9401a810 PA |
4069 | show_target_async_command (struct ui_file *file, int from_tty, |
4070 | struct cmd_list_element *c, | |
4071 | const char *value) | |
c6ebd6cf | 4072 | { |
3e43a32a MS |
4073 | fprintf_filtered (file, |
4074 | _("Controlling the inferior in " | |
4075 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4076 | } |
4077 | ||
d914c394 SS |
4078 | /* Temporary copies of permission settings. */ |
4079 | ||
4080 | static int may_write_registers_1 = 1; | |
4081 | static int may_write_memory_1 = 1; | |
4082 | static int may_insert_breakpoints_1 = 1; | |
4083 | static int may_insert_tracepoints_1 = 1; | |
4084 | static int may_insert_fast_tracepoints_1 = 1; | |
4085 | static int may_stop_1 = 1; | |
4086 | ||
4087 | /* Make the user-set values match the real values again. */ | |
4088 | ||
4089 | void | |
4090 | update_target_permissions (void) | |
4091 | { | |
4092 | may_write_registers_1 = may_write_registers; | |
4093 | may_write_memory_1 = may_write_memory; | |
4094 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4095 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4096 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4097 | may_stop_1 = may_stop; | |
4098 | } | |
4099 | ||
4100 | /* The one function handles (most of) the permission flags in the same | |
4101 | way. */ | |
4102 | ||
4103 | static void | |
4104 | set_target_permissions (char *args, int from_tty, | |
4105 | struct cmd_list_element *c) | |
4106 | { | |
4107 | if (target_has_execution) | |
4108 | { | |
4109 | update_target_permissions (); | |
4110 | error (_("Cannot change this setting while the inferior is running.")); | |
4111 | } | |
4112 | ||
4113 | /* Make the real values match the user-changed values. */ | |
4114 | may_write_registers = may_write_registers_1; | |
4115 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4116 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4117 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4118 | may_stop = may_stop_1; | |
4119 | update_observer_mode (); | |
4120 | } | |
4121 | ||
4122 | /* Set memory write permission independently of observer mode. */ | |
4123 | ||
4124 | static void | |
4125 | set_write_memory_permission (char *args, int from_tty, | |
4126 | struct cmd_list_element *c) | |
4127 | { | |
4128 | /* Make the real values match the user-changed values. */ | |
4129 | may_write_memory = may_write_memory_1; | |
4130 | update_observer_mode (); | |
4131 | } | |
4132 | ||
4133 | ||
c906108c | 4134 | void |
fba45db2 | 4135 | initialize_targets (void) |
c906108c SS |
4136 | { |
4137 | init_dummy_target (); | |
4138 | push_target (&dummy_target); | |
4139 | ||
4140 | add_info ("target", target_info, targ_desc); | |
4141 | add_info ("files", target_info, targ_desc); | |
4142 | ||
ccce17b0 | 4143 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4144 | Set target debugging."), _("\ |
4145 | Show target debugging."), _("\ | |
333dabeb DJ |
4146 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4147 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4148 | command."), |
ccce17b0 YQ |
4149 | NULL, |
4150 | show_targetdebug, | |
4151 | &setdebuglist, &showdebuglist); | |
3a11626d | 4152 | |
2bc416ba | 4153 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4154 | &trust_readonly, _("\ |
4155 | Set mode for reading from readonly sections."), _("\ | |
4156 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4157 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4158 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4159 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4160 | NULL, |
920d2a44 | 4161 | show_trust_readonly, |
e707bbc2 | 4162 | &setlist, &showlist); |
96baa820 JM |
4163 | |
4164 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4165 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4166 | |
87680a14 JB |
4167 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4168 | _("Print the name of each layer of the internal target stack."), | |
4169 | &maintenanceprintlist); | |
4170 | ||
c6ebd6cf VP |
4171 | add_setshow_boolean_cmd ("target-async", no_class, |
4172 | &target_async_permitted_1, _("\ | |
4173 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4174 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4175 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
4176 | set_target_async_command, |
4177 | show_target_async_command, | |
c6ebd6cf VP |
4178 | &setlist, |
4179 | &showlist); | |
4180 | ||
d914c394 SS |
4181 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4182 | &may_write_registers_1, _("\ | |
4183 | Set permission to write into registers."), _("\ | |
4184 | Show permission to write into registers."), _("\ | |
4185 | When this permission is on, GDB may write into the target's registers.\n\ | |
4186 | Otherwise, any sort of write attempt will result in an error."), | |
4187 | set_target_permissions, NULL, | |
4188 | &setlist, &showlist); | |
4189 | ||
4190 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4191 | &may_write_memory_1, _("\ | |
4192 | Set permission to write into target memory."), _("\ | |
4193 | Show permission to write into target memory."), _("\ | |
4194 | When this permission is on, GDB may write into the target's memory.\n\ | |
4195 | Otherwise, any sort of write attempt will result in an error."), | |
4196 | set_write_memory_permission, NULL, | |
4197 | &setlist, &showlist); | |
4198 | ||
4199 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4200 | &may_insert_breakpoints_1, _("\ | |
4201 | Set permission to insert breakpoints in the target."), _("\ | |
4202 | Show permission to insert breakpoints in the target."), _("\ | |
4203 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4204 | Otherwise, any sort of insertion attempt will result in an error."), | |
4205 | set_target_permissions, NULL, | |
4206 | &setlist, &showlist); | |
4207 | ||
4208 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4209 | &may_insert_tracepoints_1, _("\ | |
4210 | Set permission to insert tracepoints in the target."), _("\ | |
4211 | Show permission to insert tracepoints in the target."), _("\ | |
4212 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4213 | Otherwise, any sort of insertion attempt will result in an error."), | |
4214 | set_target_permissions, NULL, | |
4215 | &setlist, &showlist); | |
4216 | ||
4217 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4218 | &may_insert_fast_tracepoints_1, _("\ | |
4219 | Set permission to insert fast tracepoints in the target."), _("\ | |
4220 | Show permission to insert fast tracepoints in the target."), _("\ | |
4221 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4222 | Otherwise, any sort of insertion attempt will result in an error."), | |
4223 | set_target_permissions, NULL, | |
4224 | &setlist, &showlist); | |
4225 | ||
4226 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4227 | &may_stop_1, _("\ | |
4228 | Set permission to interrupt or signal the target."), _("\ | |
4229 | Show permission to interrupt or signal the target."), _("\ | |
4230 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4231 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4232 | set_target_permissions, NULL, | |
4233 | &setlist, &showlist); | |
c906108c | 4234 | } |