Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1990-2014 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <errno.h> | |
0e9f083f | 24 | #include <string.h> |
c906108c | 25 | #include "target.h" |
68c765e2 | 26 | #include "target-dcache.h" |
c906108c SS |
27 | #include "gdbcmd.h" |
28 | #include "symtab.h" | |
29 | #include "inferior.h" | |
30 | #include "bfd.h" | |
31 | #include "symfile.h" | |
32 | #include "objfiles.h" | |
4930751a | 33 | #include "dcache.h" |
c906108c | 34 | #include <signal.h> |
4e052eda | 35 | #include "regcache.h" |
0088c768 | 36 | #include "gdb_assert.h" |
b6591e8b | 37 | #include "gdbcore.h" |
9e35dae4 | 38 | #include "exceptions.h" |
424163ea | 39 | #include "target-descriptions.h" |
e1ac3328 | 40 | #include "gdbthread.h" |
b9db4ced | 41 | #include "solib.h" |
07b82ea5 | 42 | #include "exec.h" |
edb3359d | 43 | #include "inline-frame.h" |
2f4d8875 | 44 | #include "tracepoint.h" |
7313baad | 45 | #include "gdb/fileio.h" |
8ffcbaaf | 46 | #include "agent.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
503ebb2c | 50 | static void default_terminal_info (const char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
e0d24f8d WZ |
55 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
56 | ||
c25c4a8b | 57 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 58 | |
a14ed312 | 59 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 60 | |
a14ed312 | 61 | static int return_zero (void); |
c906108c | 62 | |
a14ed312 | 63 | static int return_one (void); |
c906108c | 64 | |
ccaa32c7 GS |
65 | static int return_minus_one (void); |
66 | ||
1b67eb02 AS |
67 | static void *return_null (void); |
68 | ||
a14ed312 | 69 | void target_ignore (void); |
c906108c | 70 | |
a14ed312 | 71 | static void target_command (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static struct target_ops *find_default_run_target (char *); |
c906108c | 74 | |
4ac248ca YQ |
75 | static target_xfer_partial_ftype default_xfer_partial; |
76 | ||
c2250ad1 UW |
77 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
78 | ptid_t ptid); | |
79 | ||
6b84065d TT |
80 | static int find_default_can_async_p (struct target_ops *ignore); |
81 | ||
82 | static int find_default_is_async_p (struct target_ops *ignore); | |
83 | ||
1101cb7b TT |
84 | #include "target-delegates.c" |
85 | ||
a14ed312 | 86 | static void init_dummy_target (void); |
c906108c | 87 | |
aa869812 AC |
88 | static struct target_ops debug_target; |
89 | ||
a14ed312 | 90 | static void debug_to_open (char *, int); |
c906108c | 91 | |
f32dbf8c MM |
92 | static void debug_to_prepare_to_store (struct target_ops *self, |
93 | struct regcache *); | |
c906108c | 94 | |
a14ed312 | 95 | static void debug_to_files_info (struct target_ops *); |
c906108c | 96 | |
3db08215 | 97 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 98 | struct bp_target_info *); |
c906108c | 99 | |
3db08215 | 100 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 101 | struct bp_target_info *); |
c906108c | 102 | |
5461485a TT |
103 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
104 | int, int, int); | |
ccaa32c7 | 105 | |
23a26771 TT |
106 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
107 | struct gdbarch *, | |
a6d9a66e | 108 | struct bp_target_info *); |
ccaa32c7 | 109 | |
a64dc96c TT |
110 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
111 | struct gdbarch *, | |
a6d9a66e | 112 | struct bp_target_info *); |
ccaa32c7 | 113 | |
0cf6dd15 TJB |
114 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int, |
115 | struct expression *); | |
ccaa32c7 | 116 | |
0cf6dd15 TJB |
117 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int, |
118 | struct expression *); | |
ccaa32c7 | 119 | |
4aa7a7f5 | 120 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 121 | |
5009afc5 AS |
122 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
123 | CORE_ADDR, CORE_ADDR, int); | |
124 | ||
e0d24f8d WZ |
125 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
126 | ||
0cf6dd15 TJB |
127 | static int debug_to_can_accel_watchpoint_condition (CORE_ADDR, int, int, |
128 | struct expression *); | |
129 | ||
a14ed312 | 130 | static void debug_to_terminal_init (void); |
c906108c | 131 | |
a14ed312 | 132 | static void debug_to_terminal_inferior (void); |
c906108c | 133 | |
a14ed312 | 134 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 135 | |
a790ad35 SC |
136 | static void debug_to_terminal_save_ours (void); |
137 | ||
a14ed312 | 138 | static void debug_to_terminal_ours (void); |
c906108c | 139 | |
a14ed312 | 140 | static void debug_to_load (char *, int); |
c906108c | 141 | |
a14ed312 | 142 | static int debug_to_can_run (void); |
c906108c | 143 | |
94cc34af | 144 | static void debug_to_stop (ptid_t); |
c906108c | 145 | |
c906108c | 146 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 147 | array; the current index into the array; the allocated size of the |
c906108c SS |
148 | array. */ |
149 | struct target_ops **target_structs; | |
150 | unsigned target_struct_size; | |
c906108c SS |
151 | unsigned target_struct_allocsize; |
152 | #define DEFAULT_ALLOCSIZE 10 | |
153 | ||
154 | /* The initial current target, so that there is always a semi-valid | |
155 | current target. */ | |
156 | ||
157 | static struct target_ops dummy_target; | |
158 | ||
159 | /* Top of target stack. */ | |
160 | ||
258b763a | 161 | static struct target_ops *target_stack; |
c906108c SS |
162 | |
163 | /* The target structure we are currently using to talk to a process | |
164 | or file or whatever "inferior" we have. */ | |
165 | ||
166 | struct target_ops current_target; | |
167 | ||
168 | /* Command list for target. */ | |
169 | ||
170 | static struct cmd_list_element *targetlist = NULL; | |
171 | ||
cf7a04e8 DJ |
172 | /* Nonzero if we should trust readonly sections from the |
173 | executable when reading memory. */ | |
174 | ||
175 | static int trust_readonly = 0; | |
176 | ||
8defab1a DJ |
177 | /* Nonzero if we should show true memory content including |
178 | memory breakpoint inserted by gdb. */ | |
179 | ||
180 | static int show_memory_breakpoints = 0; | |
181 | ||
d914c394 SS |
182 | /* These globals control whether GDB attempts to perform these |
183 | operations; they are useful for targets that need to prevent | |
184 | inadvertant disruption, such as in non-stop mode. */ | |
185 | ||
186 | int may_write_registers = 1; | |
187 | ||
188 | int may_write_memory = 1; | |
189 | ||
190 | int may_insert_breakpoints = 1; | |
191 | ||
192 | int may_insert_tracepoints = 1; | |
193 | ||
194 | int may_insert_fast_tracepoints = 1; | |
195 | ||
196 | int may_stop = 1; | |
197 | ||
c906108c SS |
198 | /* Non-zero if we want to see trace of target level stuff. */ |
199 | ||
ccce17b0 | 200 | static unsigned int targetdebug = 0; |
920d2a44 AC |
201 | static void |
202 | show_targetdebug (struct ui_file *file, int from_tty, | |
203 | struct cmd_list_element *c, const char *value) | |
204 | { | |
205 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
206 | } | |
c906108c | 207 | |
a14ed312 | 208 | static void setup_target_debug (void); |
c906108c | 209 | |
c906108c SS |
210 | /* The user just typed 'target' without the name of a target. */ |
211 | ||
c906108c | 212 | static void |
fba45db2 | 213 | target_command (char *arg, int from_tty) |
c906108c SS |
214 | { |
215 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
216 | gdb_stdout); | |
217 | } | |
218 | ||
c35b1492 PA |
219 | /* Default target_has_* methods for process_stratum targets. */ |
220 | ||
221 | int | |
222 | default_child_has_all_memory (struct target_ops *ops) | |
223 | { | |
224 | /* If no inferior selected, then we can't read memory here. */ | |
225 | if (ptid_equal (inferior_ptid, null_ptid)) | |
226 | return 0; | |
227 | ||
228 | return 1; | |
229 | } | |
230 | ||
231 | int | |
232 | default_child_has_memory (struct target_ops *ops) | |
233 | { | |
234 | /* If no inferior selected, then we can't read memory here. */ | |
235 | if (ptid_equal (inferior_ptid, null_ptid)) | |
236 | return 0; | |
237 | ||
238 | return 1; | |
239 | } | |
240 | ||
241 | int | |
242 | default_child_has_stack (struct target_ops *ops) | |
243 | { | |
244 | /* If no inferior selected, there's no stack. */ | |
245 | if (ptid_equal (inferior_ptid, null_ptid)) | |
246 | return 0; | |
247 | ||
248 | return 1; | |
249 | } | |
250 | ||
251 | int | |
252 | default_child_has_registers (struct target_ops *ops) | |
253 | { | |
254 | /* Can't read registers from no inferior. */ | |
255 | if (ptid_equal (inferior_ptid, null_ptid)) | |
256 | return 0; | |
257 | ||
258 | return 1; | |
259 | } | |
260 | ||
261 | int | |
aeaec162 | 262 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
263 | { |
264 | /* If there's no thread selected, then we can't make it run through | |
265 | hoops. */ | |
aeaec162 | 266 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
267 | return 0; |
268 | ||
269 | return 1; | |
270 | } | |
271 | ||
272 | ||
273 | int | |
274 | target_has_all_memory_1 (void) | |
275 | { | |
276 | struct target_ops *t; | |
277 | ||
278 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
279 | if (t->to_has_all_memory (t)) | |
280 | return 1; | |
281 | ||
282 | return 0; | |
283 | } | |
284 | ||
285 | int | |
286 | target_has_memory_1 (void) | |
287 | { | |
288 | struct target_ops *t; | |
289 | ||
290 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
291 | if (t->to_has_memory (t)) | |
292 | return 1; | |
293 | ||
294 | return 0; | |
295 | } | |
296 | ||
297 | int | |
298 | target_has_stack_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_stack (t)) | |
304 | return 1; | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | int | |
310 | target_has_registers_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_registers (t)) | |
316 | return 1; | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
321 | int | |
aeaec162 | 322 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
323 | { |
324 | struct target_ops *t; | |
325 | ||
326 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 327 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
328 | return 1; |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
aeaec162 TT |
333 | int |
334 | target_has_execution_current (void) | |
335 | { | |
336 | return target_has_execution_1 (inferior_ptid); | |
337 | } | |
338 | ||
c22a2b88 TT |
339 | /* Complete initialization of T. This ensures that various fields in |
340 | T are set, if needed by the target implementation. */ | |
c906108c SS |
341 | |
342 | void | |
c22a2b88 | 343 | complete_target_initialization (struct target_ops *t) |
c906108c | 344 | { |
0088c768 | 345 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
346 | if (t->to_xfer_partial == NULL) |
347 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 348 | |
c35b1492 PA |
349 | if (t->to_has_all_memory == NULL) |
350 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
351 | ||
352 | if (t->to_has_memory == NULL) | |
353 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
354 | ||
355 | if (t->to_has_stack == NULL) | |
356 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
357 | ||
358 | if (t->to_has_registers == NULL) | |
359 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
360 | ||
361 | if (t->to_has_execution == NULL) | |
aeaec162 | 362 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
363 | |
364 | install_delegators (t); | |
c22a2b88 TT |
365 | } |
366 | ||
367 | /* Add possible target architecture T to the list and add a new | |
368 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
369 | completer if not NULL. */ | |
370 | ||
371 | void | |
372 | add_target_with_completer (struct target_ops *t, | |
373 | completer_ftype *completer) | |
374 | { | |
375 | struct cmd_list_element *c; | |
376 | ||
377 | complete_target_initialization (t); | |
c35b1492 | 378 | |
c906108c SS |
379 | if (!target_structs) |
380 | { | |
381 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
382 | target_structs = (struct target_ops **) xmalloc | |
383 | (target_struct_allocsize * sizeof (*target_structs)); | |
384 | } | |
385 | if (target_struct_size >= target_struct_allocsize) | |
386 | { | |
387 | target_struct_allocsize *= 2; | |
388 | target_structs = (struct target_ops **) | |
c5aa993b JM |
389 | xrealloc ((char *) target_structs, |
390 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
391 | } |
392 | target_structs[target_struct_size++] = t; | |
c906108c SS |
393 | |
394 | if (targetlist == NULL) | |
1bedd215 AC |
395 | add_prefix_cmd ("target", class_run, target_command, _("\ |
396 | Connect to a target machine or process.\n\ | |
c906108c SS |
397 | The first argument is the type or protocol of the target machine.\n\ |
398 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
399 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 400 | `help target ' followed by the protocol name."), |
c906108c | 401 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
402 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
403 | &targetlist); | |
404 | if (completer != NULL) | |
405 | set_cmd_completer (c, completer); | |
406 | } | |
407 | ||
408 | /* Add a possible target architecture to the list. */ | |
409 | ||
410 | void | |
411 | add_target (struct target_ops *t) | |
412 | { | |
413 | add_target_with_completer (t, NULL); | |
c906108c SS |
414 | } |
415 | ||
b48d48eb MM |
416 | /* See target.h. */ |
417 | ||
418 | void | |
419 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
420 | { | |
421 | struct cmd_list_element *c; | |
422 | char *alt; | |
423 | ||
424 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
425 | see PR cli/15104. */ | |
426 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
427 | alt = xstrprintf ("target %s", t->to_shortname); | |
428 | deprecate_cmd (c, alt); | |
429 | } | |
430 | ||
c906108c SS |
431 | /* Stub functions */ |
432 | ||
433 | void | |
fba45db2 | 434 | target_ignore (void) |
c906108c SS |
435 | { |
436 | } | |
437 | ||
7d85a9c0 JB |
438 | void |
439 | target_kill (void) | |
440 | { | |
441 | struct target_ops *t; | |
442 | ||
443 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
444 | if (t->to_kill != NULL) | |
445 | { | |
446 | if (targetdebug) | |
447 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
448 | ||
449 | t->to_kill (t); | |
450 | return; | |
451 | } | |
452 | ||
453 | noprocess (); | |
454 | } | |
455 | ||
11cf8741 JM |
456 | void |
457 | target_load (char *arg, int from_tty) | |
458 | { | |
4e5d721f | 459 | target_dcache_invalidate (); |
11cf8741 JM |
460 | (*current_target.to_load) (arg, from_tty); |
461 | } | |
462 | ||
947b8855 PA |
463 | void |
464 | target_create_inferior (char *exec_file, char *args, | |
465 | char **env, int from_tty) | |
136d6dae VP |
466 | { |
467 | struct target_ops *t; | |
5d502164 | 468 | |
136d6dae VP |
469 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
470 | { | |
471 | if (t->to_create_inferior != NULL) | |
472 | { | |
473 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
474 | if (targetdebug) |
475 | fprintf_unfiltered (gdb_stdlog, | |
476 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
477 | exec_file, args, from_tty); | |
136d6dae VP |
478 | return; |
479 | } | |
480 | } | |
481 | ||
482 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 483 | _("could not find a target to create inferior")); |
136d6dae VP |
484 | } |
485 | ||
d9d2d8b6 PA |
486 | void |
487 | target_terminal_inferior (void) | |
488 | { | |
489 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 490 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
491 | this point the target is not async yet. However, if sync_execution |
492 | is not set, we know it will become async prior to resume. */ | |
493 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
494 | return; |
495 | ||
496 | /* If GDB is resuming the inferior in the foreground, install | |
497 | inferior's terminal modes. */ | |
498 | (*current_target.to_terminal_inferior) (); | |
499 | } | |
136d6dae | 500 | |
c906108c | 501 | static int |
fba45db2 KB |
502 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
503 | struct target_ops *t) | |
c906108c | 504 | { |
c378eb4e MS |
505 | errno = EIO; /* Can't read/write this location. */ |
506 | return 0; /* No bytes handled. */ | |
c906108c SS |
507 | } |
508 | ||
509 | static void | |
fba45db2 | 510 | tcomplain (void) |
c906108c | 511 | { |
8a3fe4f8 | 512 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
513 | current_target.to_shortname); |
514 | } | |
515 | ||
516 | void | |
fba45db2 | 517 | noprocess (void) |
c906108c | 518 | { |
8a3fe4f8 | 519 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
520 | } |
521 | ||
c906108c | 522 | static void |
503ebb2c | 523 | default_terminal_info (const char *args, int from_tty) |
c906108c | 524 | { |
a3f17187 | 525 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
526 | } |
527 | ||
0ef643c8 JB |
528 | /* A default implementation for the to_get_ada_task_ptid target method. |
529 | ||
530 | This function builds the PTID by using both LWP and TID as part of | |
531 | the PTID lwp and tid elements. The pid used is the pid of the | |
532 | inferior_ptid. */ | |
533 | ||
2c0b251b | 534 | static ptid_t |
0ef643c8 JB |
535 | default_get_ada_task_ptid (long lwp, long tid) |
536 | { | |
537 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
538 | } | |
539 | ||
32231432 PA |
540 | static enum exec_direction_kind |
541 | default_execution_direction (void) | |
542 | { | |
543 | if (!target_can_execute_reverse) | |
544 | return EXEC_FORWARD; | |
545 | else if (!target_can_async_p ()) | |
546 | return EXEC_FORWARD; | |
547 | else | |
548 | gdb_assert_not_reached ("\ | |
549 | to_execution_direction must be implemented for reverse async"); | |
550 | } | |
551 | ||
7998dfc3 AC |
552 | /* Go through the target stack from top to bottom, copying over zero |
553 | entries in current_target, then filling in still empty entries. In | |
554 | effect, we are doing class inheritance through the pushed target | |
555 | vectors. | |
556 | ||
557 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
558 | is currently implemented, is that it discards any knowledge of | |
559 | which target an inherited method originally belonged to. | |
560 | Consequently, new new target methods should instead explicitly and | |
561 | locally search the target stack for the target that can handle the | |
562 | request. */ | |
c906108c SS |
563 | |
564 | static void | |
7998dfc3 | 565 | update_current_target (void) |
c906108c | 566 | { |
7998dfc3 AC |
567 | struct target_ops *t; |
568 | ||
08d8bcd7 | 569 | /* First, reset current's contents. */ |
7998dfc3 AC |
570 | memset (¤t_target, 0, sizeof (current_target)); |
571 | ||
1101cb7b TT |
572 | /* Install the delegators. */ |
573 | install_delegators (¤t_target); | |
574 | ||
7998dfc3 AC |
575 | #define INHERIT(FIELD, TARGET) \ |
576 | if (!current_target.FIELD) \ | |
577 | current_target.FIELD = (TARGET)->FIELD | |
578 | ||
579 | for (t = target_stack; t; t = t->beneath) | |
580 | { | |
581 | INHERIT (to_shortname, t); | |
582 | INHERIT (to_longname, t); | |
583 | INHERIT (to_doc, t); | |
b52323fa UW |
584 | /* Do not inherit to_open. */ |
585 | /* Do not inherit to_close. */ | |
136d6dae | 586 | /* Do not inherit to_attach. */ |
7998dfc3 | 587 | INHERIT (to_post_attach, t); |
dc177b7a | 588 | INHERIT (to_attach_no_wait, t); |
136d6dae | 589 | /* Do not inherit to_detach. */ |
597320e7 | 590 | /* Do not inherit to_disconnect. */ |
28439f5e | 591 | /* Do not inherit to_resume. */ |
117de6a9 | 592 | /* Do not inherit to_wait. */ |
28439f5e PA |
593 | /* Do not inherit to_fetch_registers. */ |
594 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 595 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 596 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 | 597 | INHERIT (to_files_info, t); |
3db08215 MM |
598 | /* Do not inherit to_insert_breakpoint. */ |
599 | /* Do not inherit to_remove_breakpoint. */ | |
7998dfc3 AC |
600 | INHERIT (to_can_use_hw_breakpoint, t); |
601 | INHERIT (to_insert_hw_breakpoint, t); | |
602 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 603 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
604 | INHERIT (to_insert_watchpoint, t); |
605 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
606 | /* Do not inherit to_insert_mask_watchpoint. */ |
607 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 608 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 609 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 610 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 611 | /* Do not inherit to_stopped_by_watchpoint. */ |
5009afc5 | 612 | INHERIT (to_watchpoint_addr_within_range, t); |
e0d24f8d | 613 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 614 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 615 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
616 | INHERIT (to_terminal_init, t); |
617 | INHERIT (to_terminal_inferior, t); | |
618 | INHERIT (to_terminal_ours_for_output, t); | |
619 | INHERIT (to_terminal_ours, t); | |
620 | INHERIT (to_terminal_save_ours, t); | |
621 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 622 | /* Do not inherit to_kill. */ |
7998dfc3 | 623 | INHERIT (to_load, t); |
136d6dae | 624 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 625 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
626 | INHERIT (to_insert_fork_catchpoint, t); |
627 | INHERIT (to_remove_fork_catchpoint, t); | |
628 | INHERIT (to_insert_vfork_catchpoint, t); | |
629 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 630 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
631 | INHERIT (to_insert_exec_catchpoint, t); |
632 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 633 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 634 | INHERIT (to_has_exited, t); |
82892036 | 635 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 636 | INHERIT (to_can_run, t); |
2455069d | 637 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 638 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
639 | /* Do not inherit to_thread_alive. */ |
640 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 641 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 642 | INHERIT (to_extra_thread_info, t); |
4694da01 | 643 | INHERIT (to_thread_name, t); |
7998dfc3 | 644 | INHERIT (to_stop, t); |
4b8a223f | 645 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 646 | INHERIT (to_rcmd, t); |
7998dfc3 | 647 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 648 | INHERIT (to_log_command, t); |
7998dfc3 | 649 | INHERIT (to_stratum, t); |
c378eb4e MS |
650 | /* Do not inherit to_has_all_memory. */ |
651 | /* Do not inherit to_has_memory. */ | |
652 | /* Do not inherit to_has_stack. */ | |
653 | /* Do not inherit to_has_registers. */ | |
654 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 655 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
656 | /* Do not inherit to_can_async_p. */ |
657 | /* Do not inherit to_is_async_p. */ | |
658 | /* Do not inherit to_async. */ | |
7998dfc3 AC |
659 | INHERIT (to_find_memory_regions, t); |
660 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
661 | INHERIT (to_get_bookmark, t); |
662 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 663 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 664 | INHERIT (to_can_execute_reverse, t); |
32231432 | 665 | INHERIT (to_execution_direction, t); |
c2250ad1 | 666 | INHERIT (to_thread_architecture, t); |
424163ea | 667 | /* Do not inherit to_read_description. */ |
0ef643c8 | 668 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 669 | /* Do not inherit to_search_memory. */ |
8a305172 | 670 | INHERIT (to_supports_multi_process, t); |
d248b706 | 671 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 672 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
673 | INHERIT (to_trace_init, t); |
674 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 675 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 676 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
677 | INHERIT (to_enable_tracepoint, t); |
678 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
679 | INHERIT (to_trace_set_readonly_regions, t); |
680 | INHERIT (to_trace_start, t); | |
681 | INHERIT (to_get_trace_status, t); | |
f196051f | 682 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
683 | INHERIT (to_trace_stop, t); |
684 | INHERIT (to_trace_find, t); | |
685 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
686 | INHERIT (to_save_trace_data, t); |
687 | INHERIT (to_upload_tracepoints, t); | |
688 | INHERIT (to_upload_trace_state_variables, t); | |
689 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 690 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 691 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 692 | INHERIT (to_set_circular_trace_buffer, t); |
f6f899bf | 693 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 694 | INHERIT (to_set_trace_notes, t); |
711e434b | 695 | INHERIT (to_get_tib_address, t); |
d914c394 | 696 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
697 | INHERIT (to_static_tracepoint_marker_at, t); |
698 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 699 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
700 | INHERIT (to_use_agent, t); |
701 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 702 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 703 | INHERIT (to_magic, t); |
b775012e | 704 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 705 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 706 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
707 | /* Do not inherit to_flash_erase. */ |
708 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
709 | } |
710 | #undef INHERIT | |
711 | ||
712 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
713 | it. Some entries are defaulted to a method that print an error, |
714 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
715 | |
716 | #define de_fault(field, value) \ | |
7998dfc3 AC |
717 | if (!current_target.field) \ |
718 | current_target.field = value | |
0d06e24b | 719 | |
2bc416ba DJ |
720 | de_fault (to_open, |
721 | (void (*) (char *, int)) | |
0d06e24b | 722 | tcomplain); |
2bc416ba | 723 | de_fault (to_close, |
de90e03d | 724 | (void (*) (struct target_ops *)) |
0d06e24b | 725 | target_ignore); |
2bc416ba | 726 | de_fault (to_post_attach, |
f045800c | 727 | (void (*) (struct target_ops *, int)) |
0d06e24b | 728 | target_ignore); |
2bc416ba | 729 | de_fault (to_prepare_to_store, |
f32dbf8c | 730 | (void (*) (struct target_ops *, struct regcache *)) |
0d06e24b | 731 | noprocess); |
2bc416ba | 732 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
733 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
734 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 735 | nomemory); |
2bc416ba DJ |
736 | de_fault (to_files_info, |
737 | (void (*) (struct target_ops *)) | |
0d06e24b | 738 | target_ignore); |
ccaa32c7 | 739 | de_fault (to_can_use_hw_breakpoint, |
5461485a | 740 | (int (*) (struct target_ops *, int, int, int)) |
ccaa32c7 GS |
741 | return_zero); |
742 | de_fault (to_insert_hw_breakpoint, | |
23a26771 TT |
743 | (int (*) (struct target_ops *, struct gdbarch *, |
744 | struct bp_target_info *)) | |
ccaa32c7 GS |
745 | return_minus_one); |
746 | de_fault (to_remove_hw_breakpoint, | |
a64dc96c TT |
747 | (int (*) (struct target_ops *, struct gdbarch *, |
748 | struct bp_target_info *)) | |
ccaa32c7 GS |
749 | return_minus_one); |
750 | de_fault (to_insert_watchpoint, | |
0cf6dd15 | 751 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
752 | return_minus_one); |
753 | de_fault (to_remove_watchpoint, | |
0cf6dd15 | 754 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 | 755 | return_minus_one); |
5009afc5 AS |
756 | de_fault (to_watchpoint_addr_within_range, |
757 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
758 | de_fault (to_region_ok_for_hw_watchpoint, |
759 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 TJB |
760 | de_fault (to_can_accel_watchpoint_condition, |
761 | (int (*) (CORE_ADDR, int, int, struct expression *)) | |
762 | return_zero); | |
2bc416ba DJ |
763 | de_fault (to_terminal_init, |
764 | (void (*) (void)) | |
0d06e24b | 765 | target_ignore); |
2bc416ba DJ |
766 | de_fault (to_terminal_inferior, |
767 | (void (*) (void)) | |
0d06e24b | 768 | target_ignore); |
2bc416ba DJ |
769 | de_fault (to_terminal_ours_for_output, |
770 | (void (*) (void)) | |
0d06e24b | 771 | target_ignore); |
2bc416ba DJ |
772 | de_fault (to_terminal_ours, |
773 | (void (*) (void)) | |
0d06e24b | 774 | target_ignore); |
2bc416ba DJ |
775 | de_fault (to_terminal_save_ours, |
776 | (void (*) (void)) | |
a790ad35 | 777 | target_ignore); |
2bc416ba | 778 | de_fault (to_terminal_info, |
0d06e24b | 779 | default_terminal_info); |
2bc416ba DJ |
780 | de_fault (to_load, |
781 | (void (*) (char *, int)) | |
0d06e24b | 782 | tcomplain); |
2bc416ba DJ |
783 | de_fault (to_post_startup_inferior, |
784 | (void (*) (ptid_t)) | |
0d06e24b | 785 | target_ignore); |
2bc416ba | 786 | de_fault (to_insert_fork_catchpoint, |
77b06cd7 TJB |
787 | (int (*) (int)) |
788 | return_one); | |
2bc416ba DJ |
789 | de_fault (to_remove_fork_catchpoint, |
790 | (int (*) (int)) | |
77b06cd7 | 791 | return_one); |
2bc416ba | 792 | de_fault (to_insert_vfork_catchpoint, |
77b06cd7 TJB |
793 | (int (*) (int)) |
794 | return_one); | |
2bc416ba DJ |
795 | de_fault (to_remove_vfork_catchpoint, |
796 | (int (*) (int)) | |
77b06cd7 | 797 | return_one); |
2bc416ba | 798 | de_fault (to_insert_exec_catchpoint, |
77b06cd7 TJB |
799 | (int (*) (int)) |
800 | return_one); | |
2bc416ba DJ |
801 | de_fault (to_remove_exec_catchpoint, |
802 | (int (*) (int)) | |
77b06cd7 | 803 | return_one); |
a96d9b2e SDJ |
804 | de_fault (to_set_syscall_catchpoint, |
805 | (int (*) (int, int, int, int, int *)) | |
77b06cd7 | 806 | return_one); |
2bc416ba DJ |
807 | de_fault (to_has_exited, |
808 | (int (*) (int, int, int *)) | |
0d06e24b | 809 | return_zero); |
2bc416ba | 810 | de_fault (to_can_run, |
0d06e24b | 811 | return_zero); |
2bc416ba DJ |
812 | de_fault (to_extra_thread_info, |
813 | (char *(*) (struct thread_info *)) | |
1b67eb02 | 814 | return_null); |
4694da01 TT |
815 | de_fault (to_thread_name, |
816 | (char *(*) (struct thread_info *)) | |
1b67eb02 | 817 | return_null); |
2bc416ba | 818 | de_fault (to_stop, |
94cc34af | 819 | (void (*) (ptid_t)) |
0d06e24b | 820 | target_ignore); |
2bc416ba DJ |
821 | de_fault (to_rcmd, |
822 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 823 | tcomplain); |
2bc416ba DJ |
824 | de_fault (to_pid_to_exec_file, |
825 | (char *(*) (int)) | |
1b67eb02 | 826 | return_null); |
c2250ad1 UW |
827 | de_fault (to_thread_architecture, |
828 | default_thread_architecture); | |
424163ea | 829 | current_target.to_read_description = NULL; |
0ef643c8 JB |
830 | de_fault (to_get_ada_task_ptid, |
831 | (ptid_t (*) (long, long)) | |
832 | default_get_ada_task_ptid); | |
8a305172 PA |
833 | de_fault (to_supports_multi_process, |
834 | (int (*) (void)) | |
835 | return_zero); | |
d248b706 KY |
836 | de_fault (to_supports_enable_disable_tracepoint, |
837 | (int (*) (void)) | |
838 | return_zero); | |
3065dfb6 SS |
839 | de_fault (to_supports_string_tracing, |
840 | (int (*) (void)) | |
841 | return_zero); | |
35b1e5cc SS |
842 | de_fault (to_trace_init, |
843 | (void (*) (void)) | |
844 | tcomplain); | |
845 | de_fault (to_download_tracepoint, | |
e8ba3115 | 846 | (void (*) (struct bp_location *)) |
35b1e5cc | 847 | tcomplain); |
1e4d1764 YQ |
848 | de_fault (to_can_download_tracepoint, |
849 | (int (*) (void)) | |
850 | return_zero); | |
35b1e5cc SS |
851 | de_fault (to_download_trace_state_variable, |
852 | (void (*) (struct trace_state_variable *)) | |
853 | tcomplain); | |
d248b706 KY |
854 | de_fault (to_enable_tracepoint, |
855 | (void (*) (struct bp_location *)) | |
856 | tcomplain); | |
857 | de_fault (to_disable_tracepoint, | |
858 | (void (*) (struct bp_location *)) | |
859 | tcomplain); | |
35b1e5cc SS |
860 | de_fault (to_trace_set_readonly_regions, |
861 | (void (*) (void)) | |
862 | tcomplain); | |
863 | de_fault (to_trace_start, | |
864 | (void (*) (void)) | |
865 | tcomplain); | |
866 | de_fault (to_get_trace_status, | |
00bf0b85 | 867 | (int (*) (struct trace_status *)) |
35b1e5cc | 868 | return_minus_one); |
f196051f SS |
869 | de_fault (to_get_tracepoint_status, |
870 | (void (*) (struct breakpoint *, struct uploaded_tp *)) | |
871 | tcomplain); | |
35b1e5cc SS |
872 | de_fault (to_trace_stop, |
873 | (void (*) (void)) | |
874 | tcomplain); | |
875 | de_fault (to_trace_find, | |
cc5925ad | 876 | (int (*) (enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) |
4136fdd2 | 877 | return_minus_one); |
35b1e5cc SS |
878 | de_fault (to_get_trace_state_variable_value, |
879 | (int (*) (int, LONGEST *)) | |
880 | return_zero); | |
00bf0b85 | 881 | de_fault (to_save_trace_data, |
011aacb0 | 882 | (int (*) (const char *)) |
00bf0b85 SS |
883 | tcomplain); |
884 | de_fault (to_upload_tracepoints, | |
885 | (int (*) (struct uploaded_tp **)) | |
886 | return_zero); | |
887 | de_fault (to_upload_trace_state_variables, | |
888 | (int (*) (struct uploaded_tsv **)) | |
889 | return_zero); | |
890 | de_fault (to_get_raw_trace_data, | |
891 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
892 | tcomplain); | |
405f8e94 SS |
893 | de_fault (to_get_min_fast_tracepoint_insn_len, |
894 | (int (*) (void)) | |
895 | return_minus_one); | |
35b1e5cc SS |
896 | de_fault (to_set_disconnected_tracing, |
897 | (void (*) (int)) | |
4daf5ac0 SS |
898 | target_ignore); |
899 | de_fault (to_set_circular_trace_buffer, | |
900 | (void (*) (int)) | |
901 | target_ignore); | |
f6f899bf HAQ |
902 | de_fault (to_set_trace_buffer_size, |
903 | (void (*) (LONGEST)) | |
904 | target_ignore); | |
f196051f | 905 | de_fault (to_set_trace_notes, |
ca623f82 | 906 | (int (*) (const char *, const char *, const char *)) |
f196051f | 907 | return_zero); |
711e434b PM |
908 | de_fault (to_get_tib_address, |
909 | (int (*) (ptid_t, CORE_ADDR *)) | |
910 | tcomplain); | |
d914c394 SS |
911 | de_fault (to_set_permissions, |
912 | (void (*) (void)) | |
913 | target_ignore); | |
0fb4aa4b PA |
914 | de_fault (to_static_tracepoint_marker_at, |
915 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
916 | return_zero); | |
917 | de_fault (to_static_tracepoint_markers_by_strid, | |
918 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
919 | tcomplain); | |
b3b9301e PA |
920 | de_fault (to_traceframe_info, |
921 | (struct traceframe_info * (*) (void)) | |
1b67eb02 | 922 | return_null); |
b775012e LM |
923 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
924 | (int (*) (void)) | |
925 | return_zero); | |
d3ce09f5 SS |
926 | de_fault (to_can_run_breakpoint_commands, |
927 | (int (*) (void)) | |
928 | return_zero); | |
d1feda86 YQ |
929 | de_fault (to_use_agent, |
930 | (int (*) (int)) | |
931 | tcomplain); | |
932 | de_fault (to_can_use_agent, | |
933 | (int (*) (void)) | |
934 | return_zero); | |
ced63ec0 GB |
935 | de_fault (to_augmented_libraries_svr4_read, |
936 | (int (*) (void)) | |
937 | return_zero); | |
32231432 PA |
938 | de_fault (to_execution_direction, default_execution_direction); |
939 | ||
c906108c | 940 | #undef de_fault |
c906108c | 941 | |
7998dfc3 AC |
942 | /* Finally, position the target-stack beneath the squashed |
943 | "current_target". That way code looking for a non-inherited | |
944 | target method can quickly and simply find it. */ | |
945 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
946 | |
947 | if (targetdebug) | |
948 | setup_target_debug (); | |
c906108c SS |
949 | } |
950 | ||
951 | /* Push a new target type into the stack of the existing target accessors, | |
952 | possibly superseding some of the existing accessors. | |
953 | ||
c906108c SS |
954 | Rather than allow an empty stack, we always have the dummy target at |
955 | the bottom stratum, so we can call the function vectors without | |
956 | checking them. */ | |
957 | ||
b26a4dcb | 958 | void |
fba45db2 | 959 | push_target (struct target_ops *t) |
c906108c | 960 | { |
258b763a | 961 | struct target_ops **cur; |
c906108c SS |
962 | |
963 | /* Check magic number. If wrong, it probably means someone changed | |
964 | the struct definition, but not all the places that initialize one. */ | |
965 | if (t->to_magic != OPS_MAGIC) | |
966 | { | |
c5aa993b JM |
967 | fprintf_unfiltered (gdb_stderr, |
968 | "Magic number of %s target struct wrong\n", | |
969 | t->to_shortname); | |
3e43a32a MS |
970 | internal_error (__FILE__, __LINE__, |
971 | _("failed internal consistency check")); | |
c906108c SS |
972 | } |
973 | ||
258b763a AC |
974 | /* Find the proper stratum to install this target in. */ |
975 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 976 | { |
258b763a | 977 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
978 | break; |
979 | } | |
980 | ||
258b763a | 981 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 982 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
983 | targets to CUR, and not just those at this stratum level. */ |
984 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
985 | { | |
986 | /* There's already something at this stratum level. Close it, | |
987 | and un-hook it from the stack. */ | |
988 | struct target_ops *tmp = (*cur); | |
5d502164 | 989 | |
258b763a AC |
990 | (*cur) = (*cur)->beneath; |
991 | tmp->beneath = NULL; | |
460014f5 | 992 | target_close (tmp); |
258b763a | 993 | } |
c906108c SS |
994 | |
995 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
996 | t->beneath = (*cur); |
997 | (*cur) = t; | |
c906108c SS |
998 | |
999 | update_current_target (); | |
c906108c SS |
1000 | } |
1001 | ||
2bc416ba | 1002 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1003 | Return how many times it was removed (0 or 1). */ |
1004 | ||
1005 | int | |
fba45db2 | 1006 | unpush_target (struct target_ops *t) |
c906108c | 1007 | { |
258b763a AC |
1008 | struct target_ops **cur; |
1009 | struct target_ops *tmp; | |
c906108c | 1010 | |
c8d104ad PA |
1011 | if (t->to_stratum == dummy_stratum) |
1012 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1013 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1014 | |
c906108c | 1015 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1016 | can only occur once in the target stack. */ |
c906108c | 1017 | |
258b763a AC |
1018 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1019 | { | |
1020 | if ((*cur) == t) | |
1021 | break; | |
1022 | } | |
c906108c | 1023 | |
305436e0 PA |
1024 | /* If we don't find target_ops, quit. Only open targets should be |
1025 | closed. */ | |
258b763a | 1026 | if ((*cur) == NULL) |
305436e0 | 1027 | return 0; |
5269965e | 1028 | |
c378eb4e | 1029 | /* Unchain the target. */ |
258b763a AC |
1030 | tmp = (*cur); |
1031 | (*cur) = (*cur)->beneath; | |
1032 | tmp->beneath = NULL; | |
c906108c SS |
1033 | |
1034 | update_current_target (); | |
c906108c | 1035 | |
305436e0 PA |
1036 | /* Finally close the target. Note we do this after unchaining, so |
1037 | any target method calls from within the target_close | |
1038 | implementation don't end up in T anymore. */ | |
460014f5 | 1039 | target_close (t); |
305436e0 | 1040 | |
c906108c SS |
1041 | return 1; |
1042 | } | |
1043 | ||
aa76d38d | 1044 | void |
460014f5 | 1045 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1046 | { |
87ab71f0 | 1047 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1048 | { |
aa76d38d PA |
1049 | if (!unpush_target (target_stack)) |
1050 | { | |
1051 | fprintf_unfiltered (gdb_stderr, | |
1052 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1053 | target_stack->to_shortname); |
aa76d38d PA |
1054 | internal_error (__FILE__, __LINE__, |
1055 | _("failed internal consistency check")); | |
1056 | break; | |
1057 | } | |
1058 | } | |
1059 | } | |
1060 | ||
87ab71f0 | 1061 | void |
460014f5 | 1062 | pop_all_targets (void) |
87ab71f0 | 1063 | { |
460014f5 | 1064 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1065 | } |
1066 | ||
c0edd9ed JK |
1067 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1068 | ||
1069 | int | |
1070 | target_is_pushed (struct target_ops *t) | |
1071 | { | |
1072 | struct target_ops **cur; | |
1073 | ||
1074 | /* Check magic number. If wrong, it probably means someone changed | |
1075 | the struct definition, but not all the places that initialize one. */ | |
1076 | if (t->to_magic != OPS_MAGIC) | |
1077 | { | |
1078 | fprintf_unfiltered (gdb_stderr, | |
1079 | "Magic number of %s target struct wrong\n", | |
1080 | t->to_shortname); | |
3e43a32a MS |
1081 | internal_error (__FILE__, __LINE__, |
1082 | _("failed internal consistency check")); | |
c0edd9ed JK |
1083 | } |
1084 | ||
1085 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1086 | if (*cur == t) | |
1087 | return 1; | |
1088 | ||
1089 | return 0; | |
1090 | } | |
1091 | ||
72f5cf0e | 1092 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1093 | current thread's thread-local storage with offset OFFSET. */ |
1094 | CORE_ADDR | |
1095 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1096 | { | |
1097 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1098 | struct target_ops *target; |
1099 | ||
1100 | for (target = current_target.beneath; | |
1101 | target != NULL; | |
1102 | target = target->beneath) | |
1103 | { | |
1104 | if (target->to_get_thread_local_address != NULL) | |
1105 | break; | |
1106 | } | |
9e35dae4 | 1107 | |
117de6a9 | 1108 | if (target != NULL |
f5656ead | 1109 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1110 | { |
1111 | ptid_t ptid = inferior_ptid; | |
1112 | volatile struct gdb_exception ex; | |
1113 | ||
1114 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1115 | { | |
1116 | CORE_ADDR lm_addr; | |
1117 | ||
1118 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1119 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1120 | objfile); |
1121 | /* If it's 0, throw the appropriate exception. */ | |
1122 | if (lm_addr == 0) | |
1123 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1124 | _("TLS load module not found")); | |
1125 | ||
3e43a32a MS |
1126 | addr = target->to_get_thread_local_address (target, ptid, |
1127 | lm_addr, offset); | |
9e35dae4 DJ |
1128 | } |
1129 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1130 | throw the error to some higher catcher. */ | |
1131 | if (ex.reason < 0) | |
1132 | { | |
1133 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1134 | ||
1135 | switch (ex.error) | |
1136 | { | |
1137 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1138 | error (_("Cannot find thread-local variables " |
1139 | "in this thread library.")); | |
9e35dae4 DJ |
1140 | break; |
1141 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1142 | if (objfile_is_library) | |
1143 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 1144 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1145 | else |
1146 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 1147 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1148 | break; |
1149 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1150 | if (objfile_is_library) | |
1151 | error (_("The inferior has not yet allocated storage for" | |
1152 | " thread-local variables in\n" | |
1153 | "the shared library `%s'\n" | |
1154 | "for %s"), | |
4262abfb | 1155 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1156 | else |
1157 | error (_("The inferior has not yet allocated storage for" | |
1158 | " thread-local variables in\n" | |
1159 | "the executable `%s'\n" | |
1160 | "for %s"), | |
4262abfb | 1161 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1162 | break; |
1163 | case TLS_GENERIC_ERROR: | |
1164 | if (objfile_is_library) | |
1165 | error (_("Cannot find thread-local storage for %s, " | |
1166 | "shared library %s:\n%s"), | |
1167 | target_pid_to_str (ptid), | |
4262abfb | 1168 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1169 | else |
1170 | error (_("Cannot find thread-local storage for %s, " | |
1171 | "executable file %s:\n%s"), | |
1172 | target_pid_to_str (ptid), | |
4262abfb | 1173 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1174 | break; |
1175 | default: | |
1176 | throw_exception (ex); | |
1177 | break; | |
1178 | } | |
1179 | } | |
1180 | } | |
1181 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1182 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1183 | else | |
1184 | error (_("Cannot find thread-local variables on this target")); | |
1185 | ||
1186 | return addr; | |
1187 | } | |
1188 | ||
6be7b56e | 1189 | const char * |
9b409511 | 1190 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1191 | { |
1192 | #define CASE(X) case X: return #X | |
1193 | switch (err) | |
1194 | { | |
1195 | CASE(TARGET_XFER_E_IO); | |
1196 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1197 | default: | |
1198 | return "<unknown>"; | |
1199 | } | |
1200 | #undef CASE | |
1201 | }; | |
1202 | ||
1203 | ||
c906108c SS |
1204 | #undef MIN |
1205 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1206 | ||
1207 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1208 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1209 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1210 | is responsible for freeing it. Return the number of bytes successfully | |
1211 | read. */ | |
1212 | ||
1213 | int | |
fba45db2 | 1214 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1215 | { |
c2e8b827 | 1216 | int tlen, offset, i; |
1b0ba102 | 1217 | gdb_byte buf[4]; |
c906108c SS |
1218 | int errcode = 0; |
1219 | char *buffer; | |
1220 | int buffer_allocated; | |
1221 | char *bufptr; | |
1222 | unsigned int nbytes_read = 0; | |
1223 | ||
6217bf3e MS |
1224 | gdb_assert (string); |
1225 | ||
c906108c SS |
1226 | /* Small for testing. */ |
1227 | buffer_allocated = 4; | |
1228 | buffer = xmalloc (buffer_allocated); | |
1229 | bufptr = buffer; | |
1230 | ||
c906108c SS |
1231 | while (len > 0) |
1232 | { | |
1233 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1234 | offset = memaddr & 3; | |
1235 | ||
1b0ba102 | 1236 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1237 | if (errcode != 0) |
1238 | { | |
1239 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1240 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1241 | a single byte. */ |
1242 | tlen = 1; | |
1243 | offset = 0; | |
b8eb5af0 | 1244 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1245 | if (errcode != 0) |
1246 | goto done; | |
1247 | } | |
1248 | ||
1249 | if (bufptr - buffer + tlen > buffer_allocated) | |
1250 | { | |
1251 | unsigned int bytes; | |
5d502164 | 1252 | |
c906108c SS |
1253 | bytes = bufptr - buffer; |
1254 | buffer_allocated *= 2; | |
1255 | buffer = xrealloc (buffer, buffer_allocated); | |
1256 | bufptr = buffer + bytes; | |
1257 | } | |
1258 | ||
1259 | for (i = 0; i < tlen; i++) | |
1260 | { | |
1261 | *bufptr++ = buf[i + offset]; | |
1262 | if (buf[i + offset] == '\000') | |
1263 | { | |
1264 | nbytes_read += i + 1; | |
1265 | goto done; | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | memaddr += tlen; | |
1270 | len -= tlen; | |
1271 | nbytes_read += tlen; | |
1272 | } | |
c5aa993b | 1273 | done: |
6217bf3e | 1274 | *string = buffer; |
c906108c SS |
1275 | if (errnop != NULL) |
1276 | *errnop = errcode; | |
c906108c SS |
1277 | return nbytes_read; |
1278 | } | |
1279 | ||
07b82ea5 PA |
1280 | struct target_section_table * |
1281 | target_get_section_table (struct target_ops *target) | |
1282 | { | |
1283 | struct target_ops *t; | |
1284 | ||
1285 | if (targetdebug) | |
1286 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1287 | ||
1288 | for (t = target; t != NULL; t = t->beneath) | |
1289 | if (t->to_get_section_table != NULL) | |
1290 | return (*t->to_get_section_table) (t); | |
1291 | ||
1292 | return NULL; | |
1293 | } | |
1294 | ||
8db32d44 | 1295 | /* Find a section containing ADDR. */ |
07b82ea5 | 1296 | |
0542c86d | 1297 | struct target_section * |
8db32d44 AC |
1298 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1299 | { | |
07b82ea5 | 1300 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1301 | struct target_section *secp; |
07b82ea5 PA |
1302 | |
1303 | if (table == NULL) | |
1304 | return NULL; | |
1305 | ||
1306 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1307 | { |
1308 | if (addr >= secp->addr && addr < secp->endaddr) | |
1309 | return secp; | |
1310 | } | |
1311 | return NULL; | |
1312 | } | |
1313 | ||
e6e4e701 PA |
1314 | /* Read memory from the live target, even if currently inspecting a |
1315 | traceframe. The return is the same as that of target_read. */ | |
1316 | ||
9b409511 | 1317 | static enum target_xfer_status |
e6e4e701 | 1318 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1319 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1320 | ULONGEST *xfered_len) | |
e6e4e701 | 1321 | { |
9b409511 | 1322 | enum target_xfer_status ret; |
e6e4e701 PA |
1323 | struct cleanup *cleanup; |
1324 | ||
1325 | /* Switch momentarily out of tfind mode so to access live memory. | |
1326 | Note that this must not clear global state, such as the frame | |
1327 | cache, which must still remain valid for the previous traceframe. | |
1328 | We may be _building_ the frame cache at this point. */ | |
1329 | cleanup = make_cleanup_restore_traceframe_number (); | |
1330 | set_traceframe_number (-1); | |
1331 | ||
9b409511 YQ |
1332 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1333 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1334 | |
1335 | do_cleanups (cleanup); | |
1336 | return ret; | |
1337 | } | |
1338 | ||
1339 | /* Using the set of read-only target sections of OPS, read live | |
1340 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1341 | top-most target again. |
1342 | ||
1343 | For interface/parameters/return description see target.h, | |
1344 | to_xfer_partial. */ | |
e6e4e701 | 1345 | |
9b409511 | 1346 | static enum target_xfer_status |
e6e4e701 PA |
1347 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1348 | enum target_object object, | |
1349 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1350 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1351 | { |
1352 | struct target_section *secp; | |
1353 | struct target_section_table *table; | |
1354 | ||
1355 | secp = target_section_by_addr (ops, memaddr); | |
1356 | if (secp != NULL | |
2b2848e2 DE |
1357 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1358 | secp->the_bfd_section) | |
e6e4e701 PA |
1359 | & SEC_READONLY)) |
1360 | { | |
1361 | struct target_section *p; | |
1362 | ULONGEST memend = memaddr + len; | |
1363 | ||
1364 | table = target_get_section_table (ops); | |
1365 | ||
1366 | for (p = table->sections; p < table->sections_end; p++) | |
1367 | { | |
1368 | if (memaddr >= p->addr) | |
1369 | { | |
1370 | if (memend <= p->endaddr) | |
1371 | { | |
1372 | /* Entire transfer is within this section. */ | |
1373 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1374 | readbuf, len, xfered_len); |
e6e4e701 PA |
1375 | } |
1376 | else if (memaddr >= p->endaddr) | |
1377 | { | |
1378 | /* This section ends before the transfer starts. */ | |
1379 | continue; | |
1380 | } | |
1381 | else | |
1382 | { | |
1383 | /* This section overlaps the transfer. Just do half. */ | |
1384 | len = p->endaddr - memaddr; | |
1385 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1386 | readbuf, len, xfered_len); |
e6e4e701 PA |
1387 | } |
1388 | } | |
1389 | } | |
1390 | } | |
1391 | ||
9b409511 | 1392 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1393 | } |
1394 | ||
9f713294 YQ |
1395 | /* Read memory from more than one valid target. A core file, for |
1396 | instance, could have some of memory but delegate other bits to | |
1397 | the target below it. So, we must manually try all targets. */ | |
1398 | ||
9b409511 | 1399 | static enum target_xfer_status |
17fde6d0 | 1400 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1401 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1402 | ULONGEST *xfered_len) | |
9f713294 | 1403 | { |
9b409511 | 1404 | enum target_xfer_status res; |
9f713294 YQ |
1405 | |
1406 | do | |
1407 | { | |
1408 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1409 | readbuf, writebuf, memaddr, len, |
1410 | xfered_len); | |
1411 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1412 | break; |
1413 | ||
633785ff MM |
1414 | /* Stop if the target reports that the memory is not available. */ |
1415 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1416 | break; | |
1417 | ||
9f713294 YQ |
1418 | /* We want to continue past core files to executables, but not |
1419 | past a running target's memory. */ | |
1420 | if (ops->to_has_all_memory (ops)) | |
1421 | break; | |
1422 | ||
1423 | ops = ops->beneath; | |
1424 | } | |
1425 | while (ops != NULL); | |
1426 | ||
1427 | return res; | |
1428 | } | |
1429 | ||
7f79c47e DE |
1430 | /* Perform a partial memory transfer. |
1431 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1432 | |
9b409511 | 1433 | static enum target_xfer_status |
f0ba3972 | 1434 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1435 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1436 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1437 | { |
9b409511 | 1438 | enum target_xfer_status res; |
cf7a04e8 DJ |
1439 | int reg_len; |
1440 | struct mem_region *region; | |
4e5d721f | 1441 | struct inferior *inf; |
cf7a04e8 | 1442 | |
07b82ea5 PA |
1443 | /* For accesses to unmapped overlay sections, read directly from |
1444 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1445 | if (readbuf != NULL && overlay_debugging) | |
1446 | { | |
1447 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1448 | |
07b82ea5 PA |
1449 | if (pc_in_unmapped_range (memaddr, section)) |
1450 | { | |
1451 | struct target_section_table *table | |
1452 | = target_get_section_table (ops); | |
1453 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1454 | |
07b82ea5 PA |
1455 | memaddr = overlay_mapped_address (memaddr, section); |
1456 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1457 | memaddr, len, xfered_len, |
07b82ea5 PA |
1458 | table->sections, |
1459 | table->sections_end, | |
1460 | section_name); | |
1461 | } | |
1462 | } | |
1463 | ||
1464 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1465 | if (readbuf != NULL && trust_readonly) |
1466 | { | |
0542c86d | 1467 | struct target_section *secp; |
07b82ea5 | 1468 | struct target_section_table *table; |
cf7a04e8 DJ |
1469 | |
1470 | secp = target_section_by_addr (ops, memaddr); | |
1471 | if (secp != NULL | |
2b2848e2 DE |
1472 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1473 | secp->the_bfd_section) | |
cf7a04e8 | 1474 | & SEC_READONLY)) |
07b82ea5 PA |
1475 | { |
1476 | table = target_get_section_table (ops); | |
1477 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1478 | memaddr, len, xfered_len, |
07b82ea5 PA |
1479 | table->sections, |
1480 | table->sections_end, | |
1481 | NULL); | |
1482 | } | |
98646950 UW |
1483 | } |
1484 | ||
e6e4e701 PA |
1485 | /* If reading unavailable memory in the context of traceframes, and |
1486 | this address falls within a read-only section, fallback to | |
1487 | reading from live memory. */ | |
1488 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1489 | { | |
1490 | VEC(mem_range_s) *available; | |
1491 | ||
1492 | /* If we fail to get the set of available memory, then the | |
1493 | target does not support querying traceframe info, and so we | |
1494 | attempt reading from the traceframe anyway (assuming the | |
1495 | target implements the old QTro packet then). */ | |
1496 | if (traceframe_available_memory (&available, memaddr, len)) | |
1497 | { | |
1498 | struct cleanup *old_chain; | |
1499 | ||
1500 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1501 | ||
1502 | if (VEC_empty (mem_range_s, available) | |
1503 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1504 | { | |
1505 | /* Don't read into the traceframe's available | |
1506 | memory. */ | |
1507 | if (!VEC_empty (mem_range_s, available)) | |
1508 | { | |
1509 | LONGEST oldlen = len; | |
1510 | ||
1511 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1512 | gdb_assert (len <= oldlen); | |
1513 | } | |
1514 | ||
1515 | do_cleanups (old_chain); | |
1516 | ||
1517 | /* This goes through the topmost target again. */ | |
1518 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1519 | readbuf, memaddr, |
1520 | len, xfered_len); | |
1521 | if (res == TARGET_XFER_OK) | |
1522 | return TARGET_XFER_OK; | |
1523 | else | |
1524 | { | |
1525 | /* No use trying further, we know some memory starting | |
1526 | at MEMADDR isn't available. */ | |
1527 | *xfered_len = len; | |
1528 | return TARGET_XFER_E_UNAVAILABLE; | |
1529 | } | |
e6e4e701 PA |
1530 | } |
1531 | ||
1532 | /* Don't try to read more than how much is available, in | |
1533 | case the target implements the deprecated QTro packet to | |
1534 | cater for older GDBs (the target's knowledge of read-only | |
1535 | sections may be outdated by now). */ | |
1536 | len = VEC_index (mem_range_s, available, 0)->length; | |
1537 | ||
1538 | do_cleanups (old_chain); | |
1539 | } | |
1540 | } | |
1541 | ||
cf7a04e8 DJ |
1542 | /* Try GDB's internal data cache. */ |
1543 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1544 | /* region->hi == 0 means there's no upper bound. */ |
1545 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1546 | reg_len = len; |
1547 | else | |
1548 | reg_len = region->hi - memaddr; | |
1549 | ||
1550 | switch (region->attrib.mode) | |
1551 | { | |
1552 | case MEM_RO: | |
1553 | if (writebuf != NULL) | |
2ed4b548 | 1554 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1555 | break; |
1556 | ||
1557 | case MEM_WO: | |
1558 | if (readbuf != NULL) | |
2ed4b548 | 1559 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1560 | break; |
a76d924d DJ |
1561 | |
1562 | case MEM_FLASH: | |
1563 | /* We only support writing to flash during "load" for now. */ | |
1564 | if (writebuf != NULL) | |
1565 | error (_("Writing to flash memory forbidden in this context")); | |
1566 | break; | |
4b5752d0 VP |
1567 | |
1568 | case MEM_NONE: | |
2ed4b548 | 1569 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1570 | } |
1571 | ||
6c95b8df PA |
1572 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1573 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1574 | else | |
1575 | inf = NULL; | |
4e5d721f DE |
1576 | |
1577 | if (inf != NULL | |
2f4d8875 PA |
1578 | /* The dcache reads whole cache lines; that doesn't play well |
1579 | with reading from a trace buffer, because reading outside of | |
1580 | the collected memory range fails. */ | |
1581 | && get_traceframe_number () == -1 | |
4e5d721f | 1582 | && (region->attrib.cache |
29453a14 YQ |
1583 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1584 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1585 | { |
2a2f9fe4 | 1586 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1587 | int l; |
2a2f9fe4 | 1588 | |
cf7a04e8 | 1589 | if (readbuf != NULL) |
9b409511 | 1590 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1591 | else |
1592 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1593 | correctness dcache_xfer_memory should take readbuf and | |
1594 | writebuf. */ | |
9b409511 | 1595 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1596 | reg_len, 1); |
9b409511 YQ |
1597 | if (l <= 0) |
1598 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1599 | else |
9b409511 YQ |
1600 | { |
1601 | *xfered_len = (ULONGEST) l; | |
1602 | return TARGET_XFER_OK; | |
1603 | } | |
cf7a04e8 DJ |
1604 | } |
1605 | ||
1606 | /* If none of those methods found the memory we wanted, fall back | |
1607 | to a target partial transfer. Normally a single call to | |
1608 | to_xfer_partial is enough; if it doesn't recognize an object | |
1609 | it will call the to_xfer_partial of the next target down. | |
1610 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1611 | object which can be read from more than one valid target. |
1612 | A core file, for instance, could have some of memory but | |
1613 | delegate other bits to the target below it. So, we must | |
1614 | manually try all targets. */ | |
1615 | ||
1616 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1617 | xfered_len); | |
cf7a04e8 | 1618 | |
41dcd03f DE |
1619 | /* Make sure the cache gets updated no matter what - if we are writing |
1620 | to the stack. Even if this write is not tagged as such, we still need | |
1621 | to update the cache. */ | |
1622 | ||
9b409511 | 1623 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1624 | && inf != NULL |
1625 | && writebuf != NULL | |
f2de9785 | 1626 | && target_dcache_init_p () |
41dcd03f | 1627 | && !region->attrib.cache |
29453a14 YQ |
1628 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1629 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1630 | { |
f2de9785 | 1631 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1632 | |
9b409511 | 1633 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1634 | } |
1635 | ||
cf7a04e8 DJ |
1636 | /* If we still haven't got anything, return the last error. We |
1637 | give up. */ | |
1638 | return res; | |
0779438d AC |
1639 | } |
1640 | ||
f0ba3972 PA |
1641 | /* Perform a partial memory transfer. For docs see target.h, |
1642 | to_xfer_partial. */ | |
1643 | ||
9b409511 | 1644 | static enum target_xfer_status |
f0ba3972 | 1645 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1646 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1647 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1648 | { |
9b409511 | 1649 | enum target_xfer_status res; |
f0ba3972 PA |
1650 | |
1651 | /* Zero length requests are ok and require no work. */ | |
1652 | if (len == 0) | |
9b409511 | 1653 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1654 | |
1655 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1656 | breakpoint insns, thus hiding out from higher layers whether | |
1657 | there are software breakpoints inserted in the code stream. */ | |
1658 | if (readbuf != NULL) | |
1659 | { | |
9b409511 YQ |
1660 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1661 | xfered_len); | |
f0ba3972 | 1662 | |
9b409511 | 1663 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1664 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1665 | } | |
1666 | else | |
1667 | { | |
1668 | void *buf; | |
1669 | struct cleanup *old_chain; | |
1670 | ||
67c059c2 AB |
1671 | /* A large write request is likely to be partially satisfied |
1672 | by memory_xfer_partial_1. We will continually malloc | |
1673 | and free a copy of the entire write request for breakpoint | |
1674 | shadow handling even though we only end up writing a small | |
1675 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1676 | len = min (4096, len); | |
1677 | ||
f0ba3972 PA |
1678 | buf = xmalloc (len); |
1679 | old_chain = make_cleanup (xfree, buf); | |
1680 | memcpy (buf, writebuf, len); | |
1681 | ||
1682 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1683 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1684 | xfered_len); | |
f0ba3972 PA |
1685 | |
1686 | do_cleanups (old_chain); | |
1687 | } | |
1688 | ||
1689 | return res; | |
1690 | } | |
1691 | ||
8defab1a DJ |
1692 | static void |
1693 | restore_show_memory_breakpoints (void *arg) | |
1694 | { | |
1695 | show_memory_breakpoints = (uintptr_t) arg; | |
1696 | } | |
1697 | ||
1698 | struct cleanup * | |
1699 | make_show_memory_breakpoints_cleanup (int show) | |
1700 | { | |
1701 | int current = show_memory_breakpoints; | |
8defab1a | 1702 | |
5d502164 | 1703 | show_memory_breakpoints = show; |
8defab1a DJ |
1704 | return make_cleanup (restore_show_memory_breakpoints, |
1705 | (void *) (uintptr_t) current); | |
1706 | } | |
1707 | ||
7f79c47e DE |
1708 | /* For docs see target.h, to_xfer_partial. */ |
1709 | ||
9b409511 | 1710 | enum target_xfer_status |
27394598 AC |
1711 | target_xfer_partial (struct target_ops *ops, |
1712 | enum target_object object, const char *annex, | |
4ac248ca | 1713 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1714 | ULONGEST offset, ULONGEST len, |
1715 | ULONGEST *xfered_len) | |
27394598 | 1716 | { |
9b409511 | 1717 | enum target_xfer_status retval; |
27394598 AC |
1718 | |
1719 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1720 | |
ce6d0892 YQ |
1721 | /* Transfer is done when LEN is zero. */ |
1722 | if (len == 0) | |
9b409511 | 1723 | return TARGET_XFER_EOF; |
ce6d0892 | 1724 | |
d914c394 SS |
1725 | if (writebuf && !may_write_memory) |
1726 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1727 | core_addr_to_string_nz (offset), plongest (len)); | |
1728 | ||
9b409511 YQ |
1729 | *xfered_len = 0; |
1730 | ||
cf7a04e8 DJ |
1731 | /* If this is a memory transfer, let the memory-specific code |
1732 | have a look at it instead. Memory transfers are more | |
1733 | complicated. */ | |
29453a14 YQ |
1734 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1735 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1736 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1737 | writebuf, offset, len, xfered_len); |
9f713294 | 1738 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1739 | { |
9f713294 | 1740 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1741 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1742 | xfered_len); | |
cf7a04e8 | 1743 | } |
9f713294 YQ |
1744 | else |
1745 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1746 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1747 | |
27394598 AC |
1748 | if (targetdebug) |
1749 | { | |
1750 | const unsigned char *myaddr = NULL; | |
1751 | ||
1752 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1753 | "%s:target_xfer_partial " |
9b409511 | 1754 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1755 | ops->to_shortname, |
1756 | (int) object, | |
1757 | (annex ? annex : "(null)"), | |
53b71562 JB |
1758 | host_address_to_string (readbuf), |
1759 | host_address_to_string (writebuf), | |
0b1553bc | 1760 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1761 | pulongest (len), retval, |
1762 | pulongest (*xfered_len)); | |
27394598 AC |
1763 | |
1764 | if (readbuf) | |
1765 | myaddr = readbuf; | |
1766 | if (writebuf) | |
1767 | myaddr = writebuf; | |
9b409511 | 1768 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1769 | { |
1770 | int i; | |
2bc416ba | 1771 | |
27394598 | 1772 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1773 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1774 | { |
53b71562 | 1775 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1776 | { |
1777 | if (targetdebug < 2 && i > 0) | |
1778 | { | |
1779 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1780 | break; | |
1781 | } | |
1782 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1783 | } | |
2bc416ba | 1784 | |
27394598 AC |
1785 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1786 | } | |
1787 | } | |
2bc416ba | 1788 | |
27394598 AC |
1789 | fputc_unfiltered ('\n', gdb_stdlog); |
1790 | } | |
9b409511 YQ |
1791 | |
1792 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1793 | properly. Do assertion after printing debug messages, so that we | |
1794 | can find more clues on assertion failure from debugging messages. */ | |
1795 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1796 | gdb_assert (*xfered_len > 0); | |
1797 | ||
27394598 AC |
1798 | return retval; |
1799 | } | |
1800 | ||
578d3588 PA |
1801 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1802 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1803 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1804 | |
1805 | If an error occurs, no guarantee is made about the contents of the data at | |
1806 | MYADDR. In particular, the caller should not depend upon partial reads | |
1807 | filling the buffer with good data. There is no way for the caller to know | |
1808 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1809 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1810 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1811 | |
1812 | int | |
1b162304 | 1813 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1814 | { |
c35b1492 PA |
1815 | /* Dispatch to the topmost target, not the flattened current_target. |
1816 | Memory accesses check target->to_has_(all_)memory, and the | |
1817 | flattened target doesn't inherit those. */ | |
1818 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1819 | myaddr, memaddr, len) == len) |
1820 | return 0; | |
0779438d | 1821 | else |
578d3588 | 1822 | return TARGET_XFER_E_IO; |
c906108c SS |
1823 | } |
1824 | ||
aee4bf85 PA |
1825 | /* Like target_read_memory, but specify explicitly that this is a read |
1826 | from the target's raw memory. That is, this read bypasses the | |
1827 | dcache, breakpoint shadowing, etc. */ | |
1828 | ||
1829 | int | |
1830 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1831 | { | |
1832 | /* See comment in target_read_memory about why the request starts at | |
1833 | current_target.beneath. */ | |
1834 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1835 | myaddr, memaddr, len) == len) | |
1836 | return 0; | |
1837 | else | |
1838 | return TARGET_XFER_E_IO; | |
1839 | } | |
1840 | ||
4e5d721f DE |
1841 | /* Like target_read_memory, but specify explicitly that this is a read from |
1842 | the target's stack. This may trigger different cache behavior. */ | |
1843 | ||
1844 | int | |
45aa4659 | 1845 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1846 | { |
aee4bf85 PA |
1847 | /* See comment in target_read_memory about why the request starts at |
1848 | current_target.beneath. */ | |
4e5d721f DE |
1849 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1850 | myaddr, memaddr, len) == len) | |
1851 | return 0; | |
1852 | else | |
578d3588 | 1853 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1854 | } |
1855 | ||
29453a14 YQ |
1856 | /* Like target_read_memory, but specify explicitly that this is a read from |
1857 | the target's code. This may trigger different cache behavior. */ | |
1858 | ||
1859 | int | |
1860 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1861 | { | |
aee4bf85 PA |
1862 | /* See comment in target_read_memory about why the request starts at |
1863 | current_target.beneath. */ | |
29453a14 YQ |
1864 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1865 | myaddr, memaddr, len) == len) | |
1866 | return 0; | |
1867 | else | |
1868 | return TARGET_XFER_E_IO; | |
1869 | } | |
1870 | ||
7f79c47e | 1871 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1872 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1873 | error occurs. If an error occurs, no guarantee is made about how |
1874 | much data got written. Callers that can deal with partial writes | |
1875 | should call target_write. */ | |
7f79c47e | 1876 | |
c906108c | 1877 | int |
45aa4659 | 1878 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1879 | { |
aee4bf85 PA |
1880 | /* See comment in target_read_memory about why the request starts at |
1881 | current_target.beneath. */ | |
c35b1492 | 1882 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1883 | myaddr, memaddr, len) == len) |
1884 | return 0; | |
0779438d | 1885 | else |
578d3588 | 1886 | return TARGET_XFER_E_IO; |
c906108c | 1887 | } |
c5aa993b | 1888 | |
f0ba3972 | 1889 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1890 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1891 | if any error occurs. If an error occurs, no guarantee is made |
1892 | about how much data got written. Callers that can deal with | |
1893 | partial writes should call target_write. */ | |
f0ba3972 PA |
1894 | |
1895 | int | |
45aa4659 | 1896 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1897 | { |
aee4bf85 PA |
1898 | /* See comment in target_read_memory about why the request starts at |
1899 | current_target.beneath. */ | |
f0ba3972 PA |
1900 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1901 | myaddr, memaddr, len) == len) | |
1902 | return 0; | |
1903 | else | |
578d3588 | 1904 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1905 | } |
1906 | ||
fd79ecee DJ |
1907 | /* Fetch the target's memory map. */ |
1908 | ||
1909 | VEC(mem_region_s) * | |
1910 | target_memory_map (void) | |
1911 | { | |
1912 | VEC(mem_region_s) *result; | |
1913 | struct mem_region *last_one, *this_one; | |
1914 | int ix; | |
1915 | struct target_ops *t; | |
1916 | ||
1917 | if (targetdebug) | |
1918 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1919 | ||
1920 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1921 | if (t->to_memory_map != NULL) | |
1922 | break; | |
1923 | ||
1924 | if (t == NULL) | |
1925 | return NULL; | |
1926 | ||
1927 | result = t->to_memory_map (t); | |
1928 | if (result == NULL) | |
1929 | return NULL; | |
1930 | ||
1931 | qsort (VEC_address (mem_region_s, result), | |
1932 | VEC_length (mem_region_s, result), | |
1933 | sizeof (struct mem_region), mem_region_cmp); | |
1934 | ||
1935 | /* Check that regions do not overlap. Simultaneously assign | |
1936 | a numbering for the "mem" commands to use to refer to | |
1937 | each region. */ | |
1938 | last_one = NULL; | |
1939 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1940 | { | |
1941 | this_one->number = ix; | |
1942 | ||
1943 | if (last_one && last_one->hi > this_one->lo) | |
1944 | { | |
1945 | warning (_("Overlapping regions in memory map: ignoring")); | |
1946 | VEC_free (mem_region_s, result); | |
1947 | return NULL; | |
1948 | } | |
1949 | last_one = this_one; | |
1950 | } | |
1951 | ||
1952 | return result; | |
1953 | } | |
1954 | ||
a76d924d DJ |
1955 | void |
1956 | target_flash_erase (ULONGEST address, LONGEST length) | |
1957 | { | |
1958 | struct target_ops *t; | |
1959 | ||
1960 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1961 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1962 | { |
1963 | if (targetdebug) | |
1964 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1965 | hex_string (address), phex (length, 0)); | |
1966 | t->to_flash_erase (t, address, length); | |
1967 | return; | |
1968 | } | |
a76d924d DJ |
1969 | |
1970 | tcomplain (); | |
1971 | } | |
1972 | ||
1973 | void | |
1974 | target_flash_done (void) | |
1975 | { | |
1976 | struct target_ops *t; | |
1977 | ||
1978 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1979 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1980 | { |
1981 | if (targetdebug) | |
1982 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1983 | t->to_flash_done (t); | |
1984 | return; | |
1985 | } | |
a76d924d DJ |
1986 | |
1987 | tcomplain (); | |
1988 | } | |
1989 | ||
920d2a44 AC |
1990 | static void |
1991 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1992 | struct cmd_list_element *c, const char *value) | |
1993 | { | |
3e43a32a MS |
1994 | fprintf_filtered (file, |
1995 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1996 | value); |
1997 | } | |
3a11626d | 1998 | |
1e3ff5ad AC |
1999 | /* More generic transfers. */ |
2000 | ||
9b409511 | 2001 | static enum target_xfer_status |
8aa91c1e | 2002 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 2003 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
2004 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
2005 | ULONGEST *xfered_len) | |
0088c768 AC |
2006 | { |
2007 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
2008 | && ops->deprecated_xfer_memory != NULL) |
2009 | /* If available, fall back to the target's | |
2010 | "deprecated_xfer_memory" method. */ | |
0088c768 | 2011 | { |
4b8a223f | 2012 | int xfered = -1; |
5d502164 | 2013 | |
0088c768 | 2014 | errno = 0; |
4b8a223f AC |
2015 | if (writebuf != NULL) |
2016 | { | |
2017 | void *buffer = xmalloc (len); | |
2018 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 2019 | |
4b8a223f | 2020 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
2021 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
2022 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
2023 | do_cleanups (cleanup); |
2024 | } | |
2025 | if (readbuf != NULL) | |
244e85c8 MS |
2026 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
2027 | 0/*read*/, NULL, ops); | |
0088c768 | 2028 | if (xfered > 0) |
9b409511 YQ |
2029 | { |
2030 | *xfered_len = (ULONGEST) xfered; | |
2031 | return TARGET_XFER_E_IO; | |
2032 | } | |
0088c768 | 2033 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
2034 | /* "deprecated_xfer_memory" uses 0, cross checked against |
2035 | ERRNO as one indication of an error. */ | |
9b409511 | 2036 | return TARGET_XFER_EOF; |
0088c768 | 2037 | else |
9b409511 | 2038 | return TARGET_XFER_E_IO; |
0088c768 | 2039 | } |
0088c768 | 2040 | else |
6b84065d TT |
2041 | { |
2042 | gdb_assert (ops->beneath != NULL); | |
2043 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2044 | readbuf, writebuf, offset, len, | |
2045 | xfered_len); | |
2046 | } | |
0088c768 AC |
2047 | } |
2048 | ||
7f79c47e | 2049 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2050 | |
9b409511 | 2051 | static enum target_xfer_status |
1e3ff5ad AC |
2052 | target_read_partial (struct target_ops *ops, |
2053 | enum target_object object, | |
1b0ba102 | 2054 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
2055 | ULONGEST offset, ULONGEST len, |
2056 | ULONGEST *xfered_len) | |
1e3ff5ad | 2057 | { |
9b409511 YQ |
2058 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
2059 | xfered_len); | |
1e3ff5ad AC |
2060 | } |
2061 | ||
8a55ffb0 | 2062 | static enum target_xfer_status |
1e3ff5ad AC |
2063 | target_write_partial (struct target_ops *ops, |
2064 | enum target_object object, | |
1b0ba102 | 2065 | const char *annex, const gdb_byte *buf, |
9b409511 | 2066 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 2067 | { |
9b409511 YQ |
2068 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
2069 | xfered_len); | |
1e3ff5ad AC |
2070 | } |
2071 | ||
2072 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2073 | |
2074 | /* For docs on target_read see target.h. */ | |
2075 | ||
1e3ff5ad AC |
2076 | LONGEST |
2077 | target_read (struct target_ops *ops, | |
2078 | enum target_object object, | |
1b0ba102 | 2079 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2080 | ULONGEST offset, LONGEST len) |
2081 | { | |
2082 | LONGEST xfered = 0; | |
5d502164 | 2083 | |
1e3ff5ad AC |
2084 | while (xfered < len) |
2085 | { | |
9b409511 YQ |
2086 | ULONGEST xfered_len; |
2087 | enum target_xfer_status status; | |
2088 | ||
2089 | status = target_read_partial (ops, object, annex, | |
2090 | (gdb_byte *) buf + xfered, | |
2091 | offset + xfered, len - xfered, | |
2092 | &xfered_len); | |
5d502164 | 2093 | |
1e3ff5ad | 2094 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 2095 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2096 | return xfered; |
9b409511 YQ |
2097 | else if (status == TARGET_XFER_OK) |
2098 | { | |
2099 | xfered += xfered_len; | |
2100 | QUIT; | |
2101 | } | |
2102 | else | |
0088c768 | 2103 | return -1; |
9b409511 | 2104 | |
1e3ff5ad AC |
2105 | } |
2106 | return len; | |
2107 | } | |
2108 | ||
f1a507a1 JB |
2109 | /* Assuming that the entire [begin, end) range of memory cannot be |
2110 | read, try to read whatever subrange is possible to read. | |
2111 | ||
2112 | The function returns, in RESULT, either zero or one memory block. | |
2113 | If there's a readable subrange at the beginning, it is completely | |
2114 | read and returned. Any further readable subrange will not be read. | |
2115 | Otherwise, if there's a readable subrange at the end, it will be | |
2116 | completely read and returned. Any readable subranges before it | |
2117 | (obviously, not starting at the beginning), will be ignored. In | |
2118 | other cases -- either no readable subrange, or readable subrange(s) | |
2119 | that is neither at the beginning, or end, nothing is returned. | |
2120 | ||
2121 | The purpose of this function is to handle a read across a boundary | |
2122 | of accessible memory in a case when memory map is not available. | |
2123 | The above restrictions are fine for this case, but will give | |
2124 | incorrect results if the memory is 'patchy'. However, supporting | |
2125 | 'patchy' memory would require trying to read every single byte, | |
2126 | and it seems unacceptable solution. Explicit memory map is | |
2127 | recommended for this case -- and target_read_memory_robust will | |
2128 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2129 | |
2130 | static void | |
3e43a32a MS |
2131 | read_whatever_is_readable (struct target_ops *ops, |
2132 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2133 | VEC(memory_read_result_s) **result) |
d5086790 | 2134 | { |
f1a507a1 | 2135 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2136 | ULONGEST current_begin = begin; |
2137 | ULONGEST current_end = end; | |
2138 | int forward; | |
2139 | memory_read_result_s r; | |
9b409511 | 2140 | ULONGEST xfered_len; |
8dedea02 VP |
2141 | |
2142 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2143 | if (end - begin <= 1) | |
13b3fd9b MS |
2144 | { |
2145 | xfree (buf); | |
2146 | return; | |
2147 | } | |
8dedea02 VP |
2148 | |
2149 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2150 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2151 | at the boundary of accessible region. */ |
2152 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 2153 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
2154 | { |
2155 | forward = 1; | |
2156 | ++current_begin; | |
2157 | } | |
2158 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
2159 | buf + (end-begin) - 1, end - 1, 1, |
2160 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
2161 | { |
2162 | forward = 0; | |
2163 | --current_end; | |
2164 | } | |
2165 | else | |
2166 | { | |
13b3fd9b | 2167 | xfree (buf); |
8dedea02 VP |
2168 | return; |
2169 | } | |
2170 | ||
2171 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2172 | found to be not readable as a whole. | |
2173 | ||
2174 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2175 | so there's no point trying further. */ | |
2176 | while (current_end - current_begin > 1) | |
2177 | { | |
2178 | ULONGEST first_half_begin, first_half_end; | |
2179 | ULONGEST second_half_begin, second_half_end; | |
2180 | LONGEST xfer; | |
8dedea02 | 2181 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2182 | |
8dedea02 VP |
2183 | if (forward) |
2184 | { | |
2185 | first_half_begin = current_begin; | |
2186 | first_half_end = middle; | |
2187 | second_half_begin = middle; | |
2188 | second_half_end = current_end; | |
2189 | } | |
2190 | else | |
2191 | { | |
2192 | first_half_begin = middle; | |
2193 | first_half_end = current_end; | |
2194 | second_half_begin = current_begin; | |
2195 | second_half_end = middle; | |
2196 | } | |
2197 | ||
2198 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2199 | buf + (first_half_begin - begin), | |
2200 | first_half_begin, | |
2201 | first_half_end - first_half_begin); | |
2202 | ||
2203 | if (xfer == first_half_end - first_half_begin) | |
2204 | { | |
c378eb4e | 2205 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2206 | other half. */ |
8dedea02 VP |
2207 | current_begin = second_half_begin; |
2208 | current_end = second_half_end; | |
2209 | } | |
2210 | else | |
2211 | { | |
c378eb4e MS |
2212 | /* This half is not readable. Because we've tried one byte, we |
2213 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2214 | iteration to divide again and try to read. |
2215 | ||
2216 | We don't handle the other half, because this function only tries | |
2217 | to read a single readable subrange. */ | |
2218 | current_begin = first_half_begin; | |
2219 | current_end = first_half_end; | |
2220 | } | |
2221 | } | |
2222 | ||
2223 | if (forward) | |
2224 | { | |
2225 | /* The [begin, current_begin) range has been read. */ | |
2226 | r.begin = begin; | |
2227 | r.end = current_begin; | |
2228 | r.data = buf; | |
2229 | } | |
2230 | else | |
2231 | { | |
2232 | /* The [current_end, end) range has been read. */ | |
2233 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2234 | |
8dedea02 VP |
2235 | r.data = xmalloc (rlen); |
2236 | memcpy (r.data, buf + current_end - begin, rlen); | |
2237 | r.begin = current_end; | |
2238 | r.end = end; | |
2239 | xfree (buf); | |
2240 | } | |
2241 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2242 | } | |
2243 | ||
2244 | void | |
2245 | free_memory_read_result_vector (void *x) | |
2246 | { | |
2247 | VEC(memory_read_result_s) *v = x; | |
2248 | memory_read_result_s *current; | |
2249 | int ix; | |
2250 | ||
2251 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2252 | { | |
2253 | xfree (current->data); | |
2254 | } | |
2255 | VEC_free (memory_read_result_s, v); | |
2256 | } | |
2257 | ||
2258 | VEC(memory_read_result_s) * | |
2259 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2260 | { | |
2261 | VEC(memory_read_result_s) *result = 0; | |
2262 | ||
2263 | LONGEST xfered = 0; | |
d5086790 VP |
2264 | while (xfered < len) |
2265 | { | |
8dedea02 VP |
2266 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2267 | LONGEST rlen; | |
5d502164 | 2268 | |
8dedea02 VP |
2269 | /* If there is no explicit region, a fake one should be created. */ |
2270 | gdb_assert (region); | |
2271 | ||
2272 | if (region->hi == 0) | |
2273 | rlen = len - xfered; | |
2274 | else | |
2275 | rlen = region->hi - offset; | |
2276 | ||
2277 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2278 | { |
c378eb4e | 2279 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2280 | if the region is explicitly marked inaccessible, or |
2281 | 'inaccessible-by-default' is in effect. */ | |
2282 | xfered += rlen; | |
2283 | } | |
2284 | else | |
2285 | { | |
2286 | LONGEST to_read = min (len - xfered, rlen); | |
2287 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2288 | ||
2289 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2290 | (gdb_byte *) buffer, | |
2291 | offset + xfered, to_read); | |
2292 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2293 | if (xfer <= 0) |
d5086790 | 2294 | { |
c378eb4e | 2295 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2296 | some subrange. */ |
2297 | xfree (buffer); | |
3e43a32a MS |
2298 | read_whatever_is_readable (ops, offset + xfered, |
2299 | offset + xfered + to_read, &result); | |
8dedea02 | 2300 | xfered += to_read; |
d5086790 | 2301 | } |
8dedea02 VP |
2302 | else |
2303 | { | |
2304 | struct memory_read_result r; | |
2305 | r.data = buffer; | |
2306 | r.begin = offset + xfered; | |
2307 | r.end = r.begin + xfer; | |
2308 | VEC_safe_push (memory_read_result_s, result, &r); | |
2309 | xfered += xfer; | |
2310 | } | |
2311 | QUIT; | |
d5086790 | 2312 | } |
d5086790 | 2313 | } |
8dedea02 | 2314 | return result; |
d5086790 VP |
2315 | } |
2316 | ||
8dedea02 | 2317 | |
cf7a04e8 DJ |
2318 | /* An alternative to target_write with progress callbacks. */ |
2319 | ||
1e3ff5ad | 2320 | LONGEST |
cf7a04e8 DJ |
2321 | target_write_with_progress (struct target_ops *ops, |
2322 | enum target_object object, | |
2323 | const char *annex, const gdb_byte *buf, | |
2324 | ULONGEST offset, LONGEST len, | |
2325 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2326 | { |
2327 | LONGEST xfered = 0; | |
a76d924d DJ |
2328 | |
2329 | /* Give the progress callback a chance to set up. */ | |
2330 | if (progress) | |
2331 | (*progress) (0, baton); | |
2332 | ||
1e3ff5ad AC |
2333 | while (xfered < len) |
2334 | { | |
9b409511 YQ |
2335 | ULONGEST xfered_len; |
2336 | enum target_xfer_status status; | |
2337 | ||
2338 | status = target_write_partial (ops, object, annex, | |
2339 | (gdb_byte *) buf + xfered, | |
2340 | offset + xfered, len - xfered, | |
2341 | &xfered_len); | |
cf7a04e8 | 2342 | |
9b409511 | 2343 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2344 | return xfered; |
9b409511 | 2345 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2346 | return -1; |
cf7a04e8 | 2347 | |
9b409511 | 2348 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2349 | if (progress) |
9b409511 | 2350 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2351 | |
9b409511 | 2352 | xfered += xfered_len; |
1e3ff5ad AC |
2353 | QUIT; |
2354 | } | |
2355 | return len; | |
2356 | } | |
2357 | ||
7f79c47e DE |
2358 | /* For docs on target_write see target.h. */ |
2359 | ||
cf7a04e8 DJ |
2360 | LONGEST |
2361 | target_write (struct target_ops *ops, | |
2362 | enum target_object object, | |
2363 | const char *annex, const gdb_byte *buf, | |
2364 | ULONGEST offset, LONGEST len) | |
2365 | { | |
2366 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2367 | NULL, NULL); | |
2368 | } | |
2369 | ||
159f81f3 DJ |
2370 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2371 | the size of the transferred data. PADDING additional bytes are | |
2372 | available in *BUF_P. This is a helper function for | |
2373 | target_read_alloc; see the declaration of that function for more | |
2374 | information. */ | |
13547ab6 | 2375 | |
159f81f3 DJ |
2376 | static LONGEST |
2377 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2378 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2379 | { |
2380 | size_t buf_alloc, buf_pos; | |
2381 | gdb_byte *buf; | |
13547ab6 DJ |
2382 | |
2383 | /* This function does not have a length parameter; it reads the | |
2384 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2385 | from one target and partly from another (in a different stratum, | |
2386 | e.g. a core file and an executable). Both reasons make it | |
2387 | unsuitable for reading memory. */ | |
2388 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2389 | ||
2390 | /* Start by reading up to 4K at a time. The target will throttle | |
2391 | this number down if necessary. */ | |
2392 | buf_alloc = 4096; | |
2393 | buf = xmalloc (buf_alloc); | |
2394 | buf_pos = 0; | |
2395 | while (1) | |
2396 | { | |
9b409511 YQ |
2397 | ULONGEST xfered_len; |
2398 | enum target_xfer_status status; | |
2399 | ||
2400 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2401 | buf_pos, buf_alloc - buf_pos - padding, | |
2402 | &xfered_len); | |
2403 | ||
2404 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2405 | { |
2406 | /* Read all there was. */ | |
2407 | if (buf_pos == 0) | |
2408 | xfree (buf); | |
2409 | else | |
2410 | *buf_p = buf; | |
2411 | return buf_pos; | |
2412 | } | |
9b409511 YQ |
2413 | else if (status != TARGET_XFER_OK) |
2414 | { | |
2415 | /* An error occurred. */ | |
2416 | xfree (buf); | |
2417 | return TARGET_XFER_E_IO; | |
2418 | } | |
13547ab6 | 2419 | |
9b409511 | 2420 | buf_pos += xfered_len; |
13547ab6 DJ |
2421 | |
2422 | /* If the buffer is filling up, expand it. */ | |
2423 | if (buf_alloc < buf_pos * 2) | |
2424 | { | |
2425 | buf_alloc *= 2; | |
2426 | buf = xrealloc (buf, buf_alloc); | |
2427 | } | |
2428 | ||
2429 | QUIT; | |
2430 | } | |
2431 | } | |
2432 | ||
159f81f3 DJ |
2433 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2434 | the size of the transferred data. See the declaration in "target.h" | |
2435 | function for more information about the return value. */ | |
2436 | ||
2437 | LONGEST | |
2438 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2439 | const char *annex, gdb_byte **buf_p) | |
2440 | { | |
2441 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2442 | } | |
2443 | ||
2444 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2445 | returned as a string, allocated using xmalloc. If an error occurs | |
2446 | or the transfer is unsupported, NULL is returned. Empty objects | |
2447 | are returned as allocated but empty strings. A warning is issued | |
2448 | if the result contains any embedded NUL bytes. */ | |
2449 | ||
2450 | char * | |
2451 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2452 | const char *annex) | |
2453 | { | |
39086a0e PA |
2454 | gdb_byte *buffer; |
2455 | char *bufstr; | |
7313baad | 2456 | LONGEST i, transferred; |
159f81f3 | 2457 | |
39086a0e PA |
2458 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2459 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2460 | |
2461 | if (transferred < 0) | |
2462 | return NULL; | |
2463 | ||
2464 | if (transferred == 0) | |
2465 | return xstrdup (""); | |
2466 | ||
39086a0e | 2467 | bufstr[transferred] = 0; |
7313baad UW |
2468 | |
2469 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2470 | for (i = strlen (bufstr); i < transferred; i++) |
2471 | if (bufstr[i] != 0) | |
7313baad UW |
2472 | { |
2473 | warning (_("target object %d, annex %s, " | |
2474 | "contained unexpected null characters"), | |
2475 | (int) object, annex ? annex : "(none)"); | |
2476 | break; | |
2477 | } | |
159f81f3 | 2478 | |
39086a0e | 2479 | return bufstr; |
159f81f3 DJ |
2480 | } |
2481 | ||
b6591e8b AC |
2482 | /* Memory transfer methods. */ |
2483 | ||
2484 | void | |
1b0ba102 | 2485 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2486 | LONGEST len) |
2487 | { | |
07b82ea5 PA |
2488 | /* This method is used to read from an alternate, non-current |
2489 | target. This read must bypass the overlay support (as symbols | |
2490 | don't match this target), and GDB's internal cache (wrong cache | |
2491 | for this target). */ | |
2492 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2493 | != len) |
578d3588 | 2494 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2495 | } |
2496 | ||
2497 | ULONGEST | |
5d502164 MS |
2498 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2499 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2500 | { |
f6519ebc | 2501 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2502 | |
2503 | gdb_assert (len <= sizeof (buf)); | |
2504 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2505 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2506 | } |
2507 | ||
3db08215 MM |
2508 | /* See target.h. */ |
2509 | ||
d914c394 SS |
2510 | int |
2511 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2512 | struct bp_target_info *bp_tgt) | |
2513 | { | |
2514 | if (!may_insert_breakpoints) | |
2515 | { | |
2516 | warning (_("May not insert breakpoints")); | |
2517 | return 1; | |
2518 | } | |
2519 | ||
6b84065d TT |
2520 | return current_target.to_insert_breakpoint (¤t_target, |
2521 | gdbarch, bp_tgt); | |
d914c394 SS |
2522 | } |
2523 | ||
3db08215 MM |
2524 | /* See target.h. */ |
2525 | ||
d914c394 | 2526 | int |
6b84065d TT |
2527 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2528 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2529 | { |
2530 | /* This is kind of a weird case to handle, but the permission might | |
2531 | have been changed after breakpoints were inserted - in which case | |
2532 | we should just take the user literally and assume that any | |
2533 | breakpoints should be left in place. */ | |
2534 | if (!may_insert_breakpoints) | |
2535 | { | |
2536 | warning (_("May not remove breakpoints")); | |
2537 | return 1; | |
2538 | } | |
2539 | ||
6b84065d TT |
2540 | return current_target.to_remove_breakpoint (¤t_target, |
2541 | gdbarch, bp_tgt); | |
d914c394 SS |
2542 | } |
2543 | ||
c906108c | 2544 | static void |
fba45db2 | 2545 | target_info (char *args, int from_tty) |
c906108c SS |
2546 | { |
2547 | struct target_ops *t; | |
c906108c | 2548 | int has_all_mem = 0; |
c5aa993b | 2549 | |
c906108c | 2550 | if (symfile_objfile != NULL) |
4262abfb JK |
2551 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2552 | objfile_name (symfile_objfile)); | |
c906108c | 2553 | |
258b763a | 2554 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2555 | { |
c35b1492 | 2556 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2557 | continue; |
2558 | ||
c5aa993b | 2559 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2560 | continue; |
2561 | if (has_all_mem) | |
3e43a32a MS |
2562 | printf_unfiltered (_("\tWhile running this, " |
2563 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2564 | printf_unfiltered ("%s:\n", t->to_longname); |
2565 | (t->to_files_info) (t); | |
c35b1492 | 2566 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2567 | } |
2568 | } | |
2569 | ||
fd79ecee DJ |
2570 | /* This function is called before any new inferior is created, e.g. |
2571 | by running a program, attaching, or connecting to a target. | |
2572 | It cleans up any state from previous invocations which might | |
2573 | change between runs. This is a subset of what target_preopen | |
2574 | resets (things which might change between targets). */ | |
2575 | ||
2576 | void | |
2577 | target_pre_inferior (int from_tty) | |
2578 | { | |
c378eb4e | 2579 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2580 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2581 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2582 | to reproduce: |
2583 | ||
2584 | bash$ ./foo& | |
2585 | [1] 4711 | |
2586 | bash$ ./foo& | |
2587 | [1] 4712 | |
2588 | bash$ gdb ./foo | |
2589 | [...] | |
2590 | (gdb) attach 4711 | |
2591 | (gdb) detach | |
2592 | (gdb) attach 4712 | |
2593 | Cannot access memory at address 0xdeadbeef | |
2594 | */ | |
b9db4ced | 2595 | |
50c71eaf PA |
2596 | /* In some OSs, the shared library list is the same/global/shared |
2597 | across inferiors. If code is shared between processes, so are | |
2598 | memory regions and features. */ | |
f5656ead | 2599 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2600 | { |
2601 | no_shared_libraries (NULL, from_tty); | |
2602 | ||
2603 | invalidate_target_mem_regions (); | |
424163ea | 2604 | |
50c71eaf PA |
2605 | target_clear_description (); |
2606 | } | |
8ffcbaaf YQ |
2607 | |
2608 | agent_capability_invalidate (); | |
fd79ecee DJ |
2609 | } |
2610 | ||
b8fa0bfa PA |
2611 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2612 | inferior. */ | |
2613 | ||
2614 | static int | |
2615 | dispose_inferior (struct inferior *inf, void *args) | |
2616 | { | |
2617 | struct thread_info *thread; | |
2618 | ||
2619 | thread = any_thread_of_process (inf->pid); | |
2620 | if (thread) | |
2621 | { | |
2622 | switch_to_thread (thread->ptid); | |
2623 | ||
2624 | /* Core inferiors actually should be detached, not killed. */ | |
2625 | if (target_has_execution) | |
2626 | target_kill (); | |
2627 | else | |
2628 | target_detach (NULL, 0); | |
2629 | } | |
2630 | ||
2631 | return 0; | |
2632 | } | |
2633 | ||
c906108c SS |
2634 | /* This is to be called by the open routine before it does |
2635 | anything. */ | |
2636 | ||
2637 | void | |
fba45db2 | 2638 | target_preopen (int from_tty) |
c906108c | 2639 | { |
c5aa993b | 2640 | dont_repeat (); |
c906108c | 2641 | |
b8fa0bfa | 2642 | if (have_inferiors ()) |
c5aa993b | 2643 | { |
adf40b2e | 2644 | if (!from_tty |
b8fa0bfa PA |
2645 | || !have_live_inferiors () |
2646 | || query (_("A program is being debugged already. Kill it? "))) | |
2647 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2648 | else |
8a3fe4f8 | 2649 | error (_("Program not killed.")); |
c906108c SS |
2650 | } |
2651 | ||
2652 | /* Calling target_kill may remove the target from the stack. But if | |
2653 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2654 | /* Leave the exec target, though. The user may be switching from a |
2655 | live process to a core of the same program. */ | |
460014f5 | 2656 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2657 | |
2658 | target_pre_inferior (from_tty); | |
c906108c SS |
2659 | } |
2660 | ||
2661 | /* Detach a target after doing deferred register stores. */ | |
2662 | ||
2663 | void | |
52554a0e | 2664 | target_detach (const char *args, int from_tty) |
c906108c | 2665 | { |
136d6dae VP |
2666 | struct target_ops* t; |
2667 | ||
f5656ead | 2668 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2669 | /* Don't remove global breakpoints here. They're removed on |
2670 | disconnection from the target. */ | |
2671 | ; | |
2672 | else | |
2673 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2674 | them before detaching. */ | |
dfd4cc63 | 2675 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2676 | |
24291992 PA |
2677 | prepare_for_detach (); |
2678 | ||
136d6dae VP |
2679 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2680 | { | |
2681 | if (t->to_detach != NULL) | |
2682 | { | |
2683 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2684 | if (targetdebug) |
2685 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2686 | args, from_tty); | |
136d6dae VP |
2687 | return; |
2688 | } | |
2689 | } | |
2690 | ||
9b20d036 | 2691 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2692 | } |
2693 | ||
6ad8ae5c DJ |
2694 | void |
2695 | target_disconnect (char *args, int from_tty) | |
2696 | { | |
597320e7 DJ |
2697 | struct target_ops *t; |
2698 | ||
50c71eaf PA |
2699 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2700 | are global across processes, we have to remove them before | |
2701 | disconnecting. */ | |
74960c60 VP |
2702 | remove_breakpoints (); |
2703 | ||
597320e7 DJ |
2704 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2705 | if (t->to_disconnect != NULL) | |
2706 | { | |
2707 | if (targetdebug) | |
2708 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2709 | args, from_tty); | |
2710 | t->to_disconnect (t, args, from_tty); | |
2711 | return; | |
2712 | } | |
2713 | ||
2714 | tcomplain (); | |
6ad8ae5c DJ |
2715 | } |
2716 | ||
117de6a9 | 2717 | ptid_t |
47608cb1 | 2718 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2719 | { |
2720 | struct target_ops *t; | |
6b84065d TT |
2721 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2722 | status, options); | |
117de6a9 | 2723 | |
6b84065d | 2724 | if (targetdebug) |
117de6a9 | 2725 | { |
6b84065d TT |
2726 | char *status_string; |
2727 | char *options_string; | |
117de6a9 | 2728 | |
6b84065d TT |
2729 | status_string = target_waitstatus_to_string (status); |
2730 | options_string = target_options_to_string (options); | |
2731 | fprintf_unfiltered (gdb_stdlog, | |
2732 | "target_wait (%d, status, options={%s})" | |
2733 | " = %d, %s\n", | |
2734 | ptid_get_pid (ptid), options_string, | |
2735 | ptid_get_pid (retval), status_string); | |
2736 | xfree (status_string); | |
2737 | xfree (options_string); | |
117de6a9 PA |
2738 | } |
2739 | ||
6b84065d | 2740 | return retval; |
117de6a9 PA |
2741 | } |
2742 | ||
2743 | char * | |
2744 | target_pid_to_str (ptid_t ptid) | |
2745 | { | |
2746 | struct target_ops *t; | |
2747 | ||
2748 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2749 | { | |
2750 | if (t->to_pid_to_str != NULL) | |
2751 | return (*t->to_pid_to_str) (t, ptid); | |
2752 | } | |
2753 | ||
2754 | return normal_pid_to_str (ptid); | |
2755 | } | |
2756 | ||
4694da01 TT |
2757 | char * |
2758 | target_thread_name (struct thread_info *info) | |
2759 | { | |
2760 | struct target_ops *t; | |
2761 | ||
2762 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2763 | { | |
2764 | if (t->to_thread_name != NULL) | |
2765 | return (*t->to_thread_name) (info); | |
2766 | } | |
2767 | ||
2768 | return NULL; | |
2769 | } | |
2770 | ||
e1ac3328 | 2771 | void |
2ea28649 | 2772 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2773 | { |
28439f5e PA |
2774 | struct target_ops *t; |
2775 | ||
4e5d721f | 2776 | target_dcache_invalidate (); |
28439f5e | 2777 | |
6b84065d TT |
2778 | current_target.to_resume (¤t_target, ptid, step, signal); |
2779 | if (targetdebug) | |
2780 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2781 | ptid_get_pid (ptid), | |
2782 | step ? "step" : "continue", | |
2783 | gdb_signal_to_name (signal)); | |
28439f5e | 2784 | |
6b84065d TT |
2785 | registers_changed_ptid (ptid); |
2786 | set_executing (ptid, 1); | |
2787 | set_running (ptid, 1); | |
2788 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2789 | } |
2455069d UW |
2790 | |
2791 | void | |
2792 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2793 | { | |
2794 | struct target_ops *t; | |
2795 | ||
2796 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2797 | { | |
2798 | if (t->to_pass_signals != NULL) | |
2799 | { | |
2800 | if (targetdebug) | |
2801 | { | |
2802 | int i; | |
2803 | ||
2804 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2805 | numsigs); | |
2806 | ||
2807 | for (i = 0; i < numsigs; i++) | |
2808 | if (pass_signals[i]) | |
2809 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2810 | gdb_signal_to_name (i)); |
2455069d UW |
2811 | |
2812 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2813 | } | |
2814 | ||
2815 | (*t->to_pass_signals) (numsigs, pass_signals); | |
2816 | return; | |
2817 | } | |
2818 | } | |
2819 | } | |
2820 | ||
9b224c5e PA |
2821 | void |
2822 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2823 | { | |
2824 | struct target_ops *t; | |
2825 | ||
2826 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2827 | { | |
2828 | if (t->to_program_signals != NULL) | |
2829 | { | |
2830 | if (targetdebug) | |
2831 | { | |
2832 | int i; | |
2833 | ||
2834 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2835 | numsigs); | |
2836 | ||
2837 | for (i = 0; i < numsigs; i++) | |
2838 | if (program_signals[i]) | |
2839 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2840 | gdb_signal_to_name (i)); |
9b224c5e PA |
2841 | |
2842 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2843 | } | |
2844 | ||
2845 | (*t->to_program_signals) (numsigs, program_signals); | |
2846 | return; | |
2847 | } | |
2848 | } | |
2849 | } | |
2850 | ||
ee057212 DJ |
2851 | /* Look through the list of possible targets for a target that can |
2852 | follow forks. */ | |
2853 | ||
2854 | int | |
07107ca6 | 2855 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2856 | { |
2857 | struct target_ops *t; | |
2858 | ||
2859 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2860 | { | |
2861 | if (t->to_follow_fork != NULL) | |
2862 | { | |
07107ca6 | 2863 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2864 | |
ee057212 | 2865 | if (targetdebug) |
07107ca6 LM |
2866 | fprintf_unfiltered (gdb_stdlog, |
2867 | "target_follow_fork (%d, %d) = %d\n", | |
2868 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2869 | return retval; |
2870 | } | |
2871 | } | |
2872 | ||
2873 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2874 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2875 | _("could not find a target to follow fork")); |
ee057212 DJ |
2876 | } |
2877 | ||
136d6dae VP |
2878 | void |
2879 | target_mourn_inferior (void) | |
2880 | { | |
2881 | struct target_ops *t; | |
5d502164 | 2882 | |
136d6dae VP |
2883 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2884 | { | |
2885 | if (t->to_mourn_inferior != NULL) | |
2886 | { | |
2887 | t->to_mourn_inferior (t); | |
947b8855 PA |
2888 | if (targetdebug) |
2889 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2890 | |
2891 | /* We no longer need to keep handles on any of the object files. | |
2892 | Make sure to release them to avoid unnecessarily locking any | |
2893 | of them while we're not actually debugging. */ | |
2894 | bfd_cache_close_all (); | |
2895 | ||
136d6dae VP |
2896 | return; |
2897 | } | |
2898 | } | |
2899 | ||
2900 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2901 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2902 | } |
2903 | ||
424163ea DJ |
2904 | /* Look for a target which can describe architectural features, starting |
2905 | from TARGET. If we find one, return its description. */ | |
2906 | ||
2907 | const struct target_desc * | |
2908 | target_read_description (struct target_ops *target) | |
2909 | { | |
2910 | struct target_ops *t; | |
2911 | ||
2912 | for (t = target; t != NULL; t = t->beneath) | |
2913 | if (t->to_read_description != NULL) | |
2914 | { | |
2915 | const struct target_desc *tdesc; | |
2916 | ||
2917 | tdesc = t->to_read_description (t); | |
2918 | if (tdesc) | |
2919 | return tdesc; | |
2920 | } | |
2921 | ||
2922 | return NULL; | |
2923 | } | |
2924 | ||
08388c79 DE |
2925 | /* The default implementation of to_search_memory. |
2926 | This implements a basic search of memory, reading target memory and | |
2927 | performing the search here (as opposed to performing the search in on the | |
2928 | target side with, for example, gdbserver). */ | |
2929 | ||
2930 | int | |
2931 | simple_search_memory (struct target_ops *ops, | |
2932 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2933 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2934 | CORE_ADDR *found_addrp) | |
2935 | { | |
2936 | /* NOTE: also defined in find.c testcase. */ | |
2937 | #define SEARCH_CHUNK_SIZE 16000 | |
2938 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2939 | /* Buffer to hold memory contents for searching. */ | |
2940 | gdb_byte *search_buf; | |
2941 | unsigned search_buf_size; | |
2942 | struct cleanup *old_cleanups; | |
2943 | ||
2944 | search_buf_size = chunk_size + pattern_len - 1; | |
2945 | ||
2946 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2947 | if (search_space_len < search_buf_size) | |
2948 | search_buf_size = search_space_len; | |
2949 | ||
2950 | search_buf = malloc (search_buf_size); | |
2951 | if (search_buf == NULL) | |
5e1471f5 | 2952 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2953 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2954 | ||
2955 | /* Prime the search buffer. */ | |
2956 | ||
2957 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2958 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2959 | { | |
b3dc46ff AB |
2960 | warning (_("Unable to access %s bytes of target " |
2961 | "memory at %s, halting search."), | |
2962 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2963 | do_cleanups (old_cleanups); |
2964 | return -1; | |
2965 | } | |
2966 | ||
2967 | /* Perform the search. | |
2968 | ||
2969 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2970 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2971 | read in another N bytes. */ | |
2972 | ||
2973 | while (search_space_len >= pattern_len) | |
2974 | { | |
2975 | gdb_byte *found_ptr; | |
2976 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2977 | ||
2978 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2979 | pattern, pattern_len); | |
2980 | ||
2981 | if (found_ptr != NULL) | |
2982 | { | |
2983 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2984 | |
08388c79 DE |
2985 | *found_addrp = found_addr; |
2986 | do_cleanups (old_cleanups); | |
2987 | return 1; | |
2988 | } | |
2989 | ||
2990 | /* Not found in this chunk, skip to next chunk. */ | |
2991 | ||
2992 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2993 | if (search_space_len >= chunk_size) | |
2994 | search_space_len -= chunk_size; | |
2995 | else | |
2996 | search_space_len = 0; | |
2997 | ||
2998 | if (search_space_len >= pattern_len) | |
2999 | { | |
3000 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 3001 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
3002 | int nr_to_read; |
3003 | ||
3004 | /* Copy the trailing part of the previous iteration to the front | |
3005 | of the buffer for the next iteration. */ | |
3006 | gdb_assert (keep_len == pattern_len - 1); | |
3007 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
3008 | ||
3009 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
3010 | ||
3011 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
3012 | search_buf + keep_len, read_addr, | |
3013 | nr_to_read) != nr_to_read) | |
3014 | { | |
b3dc46ff | 3015 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 3016 | "memory at %s, halting search."), |
b3dc46ff | 3017 | plongest (nr_to_read), |
08388c79 DE |
3018 | hex_string (read_addr)); |
3019 | do_cleanups (old_cleanups); | |
3020 | return -1; | |
3021 | } | |
3022 | ||
3023 | start_addr += chunk_size; | |
3024 | } | |
3025 | } | |
3026 | ||
3027 | /* Not found. */ | |
3028 | ||
3029 | do_cleanups (old_cleanups); | |
3030 | return 0; | |
3031 | } | |
3032 | ||
3033 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
3034 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
3035 | ||
3036 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
3037 | requiring halting of the search (e.g. memory read error). | |
3038 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
3039 | ||
3040 | int | |
3041 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
3042 | const gdb_byte *pattern, ULONGEST pattern_len, | |
3043 | CORE_ADDR *found_addrp) | |
3044 | { | |
3045 | struct target_ops *t; | |
3046 | int found; | |
3047 | ||
3048 | /* We don't use INHERIT to set current_target.to_search_memory, | |
3049 | so we have to scan the target stack and handle targetdebug | |
3050 | ourselves. */ | |
3051 | ||
3052 | if (targetdebug) | |
3053 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3054 | hex_string (start_addr)); | |
3055 | ||
3056 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3057 | if (t->to_search_memory != NULL) | |
3058 | break; | |
3059 | ||
3060 | if (t != NULL) | |
3061 | { | |
3062 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3063 | pattern, pattern_len, found_addrp); | |
3064 | } | |
3065 | else | |
3066 | { | |
3067 | /* If a special version of to_search_memory isn't available, use the | |
3068 | simple version. */ | |
c35b1492 | 3069 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3070 | start_addr, search_space_len, |
3071 | pattern, pattern_len, found_addrp); | |
3072 | } | |
3073 | ||
3074 | if (targetdebug) | |
3075 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3076 | ||
3077 | return found; | |
3078 | } | |
3079 | ||
8edfe269 DJ |
3080 | /* Look through the currently pushed targets. If none of them will |
3081 | be able to restart the currently running process, issue an error | |
3082 | message. */ | |
3083 | ||
3084 | void | |
3085 | target_require_runnable (void) | |
3086 | { | |
3087 | struct target_ops *t; | |
3088 | ||
3089 | for (t = target_stack; t != NULL; t = t->beneath) | |
3090 | { | |
3091 | /* If this target knows how to create a new program, then | |
3092 | assume we will still be able to after killing the current | |
3093 | one. Either killing and mourning will not pop T, or else | |
3094 | find_default_run_target will find it again. */ | |
3095 | if (t->to_create_inferior != NULL) | |
3096 | return; | |
3097 | ||
3098 | /* Do not worry about thread_stratum targets that can not | |
3099 | create inferiors. Assume they will be pushed again if | |
3100 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3101 | if (t->to_stratum == thread_stratum |
3102 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3103 | continue; |
3104 | ||
3e43a32a MS |
3105 | error (_("The \"%s\" target does not support \"run\". " |
3106 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3107 | t->to_shortname); |
3108 | } | |
3109 | ||
3110 | /* This function is only called if the target is running. In that | |
3111 | case there should have been a process_stratum target and it | |
c378eb4e | 3112 | should either know how to create inferiors, or not... */ |
9b20d036 | 3113 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3114 | } |
3115 | ||
c906108c SS |
3116 | /* Look through the list of possible targets for a target that can |
3117 | execute a run or attach command without any other data. This is | |
3118 | used to locate the default process stratum. | |
3119 | ||
5f667f2d PA |
3120 | If DO_MESG is not NULL, the result is always valid (error() is |
3121 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3122 | |
3123 | static struct target_ops * | |
fba45db2 | 3124 | find_default_run_target (char *do_mesg) |
c906108c SS |
3125 | { |
3126 | struct target_ops **t; | |
3127 | struct target_ops *runable = NULL; | |
3128 | int count; | |
3129 | ||
3130 | count = 0; | |
3131 | ||
3132 | for (t = target_structs; t < target_structs + target_struct_size; | |
3133 | ++t) | |
3134 | { | |
c5aa993b | 3135 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3136 | { |
3137 | runable = *t; | |
3138 | ++count; | |
3139 | } | |
3140 | } | |
3141 | ||
3142 | if (count != 1) | |
5f667f2d PA |
3143 | { |
3144 | if (do_mesg) | |
3145 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3146 | else | |
3147 | return NULL; | |
3148 | } | |
c906108c SS |
3149 | |
3150 | return runable; | |
3151 | } | |
3152 | ||
3153 | void | |
136d6dae | 3154 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3155 | { |
3156 | struct target_ops *t; | |
3157 | ||
c5aa993b | 3158 | t = find_default_run_target ("attach"); |
136d6dae | 3159 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3160 | return; |
3161 | } | |
3162 | ||
c906108c | 3163 | void |
136d6dae VP |
3164 | find_default_create_inferior (struct target_ops *ops, |
3165 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3166 | int from_tty) |
c906108c SS |
3167 | { |
3168 | struct target_ops *t; | |
3169 | ||
c5aa993b | 3170 | t = find_default_run_target ("run"); |
136d6dae | 3171 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3172 | return; |
3173 | } | |
3174 | ||
2c0b251b | 3175 | static int |
6a109b6b | 3176 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
3177 | { |
3178 | struct target_ops *t; | |
3179 | ||
5f667f2d PA |
3180 | /* This may be called before the target is pushed on the stack; |
3181 | look for the default process stratum. If there's none, gdb isn't | |
3182 | configured with a native debugger, and target remote isn't | |
3183 | connected yet. */ | |
3184 | t = find_default_run_target (NULL); | |
6b84065d | 3185 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 3186 | return (t->to_can_async_p) (t); |
b84876c2 PA |
3187 | return 0; |
3188 | } | |
3189 | ||
2c0b251b | 3190 | static int |
6a109b6b | 3191 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
3192 | { |
3193 | struct target_ops *t; | |
3194 | ||
5f667f2d PA |
3195 | /* This may be called before the target is pushed on the stack; |
3196 | look for the default process stratum. If there's none, gdb isn't | |
3197 | configured with a native debugger, and target remote isn't | |
3198 | connected yet. */ | |
3199 | t = find_default_run_target (NULL); | |
6b84065d | 3200 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 3201 | return (t->to_is_async_p) (t); |
b84876c2 PA |
3202 | return 0; |
3203 | } | |
3204 | ||
2c0b251b | 3205 | static int |
9908b566 VP |
3206 | find_default_supports_non_stop (void) |
3207 | { | |
3208 | struct target_ops *t; | |
3209 | ||
3210 | t = find_default_run_target (NULL); | |
3211 | if (t && t->to_supports_non_stop) | |
3212 | return (t->to_supports_non_stop) (); | |
3213 | return 0; | |
3214 | } | |
3215 | ||
3216 | int | |
2c0b251b | 3217 | target_supports_non_stop (void) |
9908b566 VP |
3218 | { |
3219 | struct target_ops *t; | |
5d502164 | 3220 | |
9908b566 VP |
3221 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3222 | if (t->to_supports_non_stop) | |
3223 | return t->to_supports_non_stop (); | |
3224 | ||
3225 | return 0; | |
3226 | } | |
3227 | ||
145b16a9 UW |
3228 | /* Implement the "info proc" command. */ |
3229 | ||
451b7c33 | 3230 | int |
145b16a9 UW |
3231 | target_info_proc (char *args, enum info_proc_what what) |
3232 | { | |
3233 | struct target_ops *t; | |
3234 | ||
3235 | /* If we're already connected to something that can get us OS | |
3236 | related data, use it. Otherwise, try using the native | |
3237 | target. */ | |
3238 | if (current_target.to_stratum >= process_stratum) | |
3239 | t = current_target.beneath; | |
3240 | else | |
3241 | t = find_default_run_target (NULL); | |
3242 | ||
3243 | for (; t != NULL; t = t->beneath) | |
3244 | { | |
3245 | if (t->to_info_proc != NULL) | |
3246 | { | |
3247 | t->to_info_proc (t, args, what); | |
3248 | ||
3249 | if (targetdebug) | |
3250 | fprintf_unfiltered (gdb_stdlog, | |
3251 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3252 | ||
451b7c33 | 3253 | return 1; |
145b16a9 UW |
3254 | } |
3255 | } | |
3256 | ||
451b7c33 | 3257 | return 0; |
145b16a9 UW |
3258 | } |
3259 | ||
03583c20 UW |
3260 | static int |
3261 | find_default_supports_disable_randomization (void) | |
3262 | { | |
3263 | struct target_ops *t; | |
3264 | ||
3265 | t = find_default_run_target (NULL); | |
3266 | if (t && t->to_supports_disable_randomization) | |
3267 | return (t->to_supports_disable_randomization) (); | |
3268 | return 0; | |
3269 | } | |
3270 | ||
3271 | int | |
3272 | target_supports_disable_randomization (void) | |
3273 | { | |
3274 | struct target_ops *t; | |
3275 | ||
3276 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3277 | if (t->to_supports_disable_randomization) | |
3278 | return t->to_supports_disable_randomization (); | |
3279 | ||
3280 | return 0; | |
3281 | } | |
9908b566 | 3282 | |
07e059b5 VP |
3283 | char * |
3284 | target_get_osdata (const char *type) | |
3285 | { | |
07e059b5 VP |
3286 | struct target_ops *t; |
3287 | ||
739ef7fb PA |
3288 | /* If we're already connected to something that can get us OS |
3289 | related data, use it. Otherwise, try using the native | |
3290 | target. */ | |
3291 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3292 | t = current_target.beneath; |
739ef7fb PA |
3293 | else |
3294 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3295 | |
3296 | if (!t) | |
3297 | return NULL; | |
3298 | ||
6d097e65 | 3299 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3300 | } |
3301 | ||
6c95b8df PA |
3302 | /* Determine the current address space of thread PTID. */ |
3303 | ||
3304 | struct address_space * | |
3305 | target_thread_address_space (ptid_t ptid) | |
3306 | { | |
c0694254 | 3307 | struct address_space *aspace; |
6c95b8df | 3308 | struct inferior *inf; |
c0694254 PA |
3309 | struct target_ops *t; |
3310 | ||
3311 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3312 | { | |
3313 | if (t->to_thread_address_space != NULL) | |
3314 | { | |
3315 | aspace = t->to_thread_address_space (t, ptid); | |
3316 | gdb_assert (aspace); | |
6c95b8df | 3317 | |
c0694254 PA |
3318 | if (targetdebug) |
3319 | fprintf_unfiltered (gdb_stdlog, | |
3320 | "target_thread_address_space (%s) = %d\n", | |
3321 | target_pid_to_str (ptid), | |
3322 | address_space_num (aspace)); | |
3323 | return aspace; | |
3324 | } | |
3325 | } | |
6c95b8df PA |
3326 | |
3327 | /* Fall-back to the "main" address space of the inferior. */ | |
3328 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3329 | ||
3330 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3331 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3332 | _("Can't determine the current " |
3333 | "address space of thread %s\n"), | |
6c95b8df PA |
3334 | target_pid_to_str (ptid)); |
3335 | ||
3336 | return inf->aspace; | |
3337 | } | |
3338 | ||
7313baad UW |
3339 | |
3340 | /* Target file operations. */ | |
3341 | ||
3342 | static struct target_ops * | |
3343 | default_fileio_target (void) | |
3344 | { | |
3345 | /* If we're already connected to something that can perform | |
3346 | file I/O, use it. Otherwise, try using the native target. */ | |
3347 | if (current_target.to_stratum >= process_stratum) | |
3348 | return current_target.beneath; | |
3349 | else | |
3350 | return find_default_run_target ("file I/O"); | |
3351 | } | |
3352 | ||
3353 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3354 | target file descriptor, or -1 if an error occurs (and set | |
3355 | *TARGET_ERRNO). */ | |
3356 | int | |
3357 | target_fileio_open (const char *filename, int flags, int mode, | |
3358 | int *target_errno) | |
3359 | { | |
3360 | struct target_ops *t; | |
3361 | ||
3362 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3363 | { | |
3364 | if (t->to_fileio_open != NULL) | |
3365 | { | |
3366 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3367 | ||
3368 | if (targetdebug) | |
3369 | fprintf_unfiltered (gdb_stdlog, | |
3370 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3371 | filename, flags, mode, | |
3372 | fd, fd != -1 ? 0 : *target_errno); | |
3373 | return fd; | |
3374 | } | |
3375 | } | |
3376 | ||
3377 | *target_errno = FILEIO_ENOSYS; | |
3378 | return -1; | |
3379 | } | |
3380 | ||
3381 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3382 | Return the number of bytes written, or -1 if an error occurs | |
3383 | (and set *TARGET_ERRNO). */ | |
3384 | int | |
3385 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3386 | ULONGEST offset, int *target_errno) | |
3387 | { | |
3388 | struct target_ops *t; | |
3389 | ||
3390 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3391 | { | |
3392 | if (t->to_fileio_pwrite != NULL) | |
3393 | { | |
3394 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3395 | target_errno); | |
3396 | ||
3397 | if (targetdebug) | |
3398 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3399 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3400 | "= %d (%d)\n", |
a71b5a38 | 3401 | fd, len, pulongest (offset), |
7313baad UW |
3402 | ret, ret != -1 ? 0 : *target_errno); |
3403 | return ret; | |
3404 | } | |
3405 | } | |
3406 | ||
3407 | *target_errno = FILEIO_ENOSYS; | |
3408 | return -1; | |
3409 | } | |
3410 | ||
3411 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3412 | Return the number of bytes read, or -1 if an error occurs | |
3413 | (and set *TARGET_ERRNO). */ | |
3414 | int | |
3415 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3416 | ULONGEST offset, int *target_errno) | |
3417 | { | |
3418 | struct target_ops *t; | |
3419 | ||
3420 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3421 | { | |
3422 | if (t->to_fileio_pread != NULL) | |
3423 | { | |
3424 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3425 | target_errno); | |
3426 | ||
3427 | if (targetdebug) | |
3428 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3429 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3430 | "= %d (%d)\n", |
a71b5a38 | 3431 | fd, len, pulongest (offset), |
7313baad UW |
3432 | ret, ret != -1 ? 0 : *target_errno); |
3433 | return ret; | |
3434 | } | |
3435 | } | |
3436 | ||
3437 | *target_errno = FILEIO_ENOSYS; | |
3438 | return -1; | |
3439 | } | |
3440 | ||
3441 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3442 | (and set *TARGET_ERRNO). */ | |
3443 | int | |
3444 | target_fileio_close (int fd, int *target_errno) | |
3445 | { | |
3446 | struct target_ops *t; | |
3447 | ||
3448 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3449 | { | |
3450 | if (t->to_fileio_close != NULL) | |
3451 | { | |
3452 | int ret = t->to_fileio_close (fd, target_errno); | |
3453 | ||
3454 | if (targetdebug) | |
3455 | fprintf_unfiltered (gdb_stdlog, | |
3456 | "target_fileio_close (%d) = %d (%d)\n", | |
3457 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3458 | return ret; | |
3459 | } | |
3460 | } | |
3461 | ||
3462 | *target_errno = FILEIO_ENOSYS; | |
3463 | return -1; | |
3464 | } | |
3465 | ||
3466 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3467 | occurs (and set *TARGET_ERRNO). */ | |
3468 | int | |
3469 | target_fileio_unlink (const char *filename, int *target_errno) | |
3470 | { | |
3471 | struct target_ops *t; | |
3472 | ||
3473 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3474 | { | |
3475 | if (t->to_fileio_unlink != NULL) | |
3476 | { | |
3477 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3478 | ||
3479 | if (targetdebug) | |
3480 | fprintf_unfiltered (gdb_stdlog, | |
3481 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3482 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3483 | return ret; | |
3484 | } | |
3485 | } | |
3486 | ||
3487 | *target_errno = FILEIO_ENOSYS; | |
3488 | return -1; | |
3489 | } | |
3490 | ||
b9e7b9c3 UW |
3491 | /* Read value of symbolic link FILENAME on the target. Return a |
3492 | null-terminated string allocated via xmalloc, or NULL if an error | |
3493 | occurs (and set *TARGET_ERRNO). */ | |
3494 | char * | |
3495 | target_fileio_readlink (const char *filename, int *target_errno) | |
3496 | { | |
3497 | struct target_ops *t; | |
3498 | ||
3499 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3500 | { | |
3501 | if (t->to_fileio_readlink != NULL) | |
3502 | { | |
3503 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3504 | ||
3505 | if (targetdebug) | |
3506 | fprintf_unfiltered (gdb_stdlog, | |
3507 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3508 | filename, ret? ret : "(nil)", | |
3509 | ret? 0 : *target_errno); | |
3510 | return ret; | |
3511 | } | |
3512 | } | |
3513 | ||
3514 | *target_errno = FILEIO_ENOSYS; | |
3515 | return NULL; | |
3516 | } | |
3517 | ||
7313baad UW |
3518 | static void |
3519 | target_fileio_close_cleanup (void *opaque) | |
3520 | { | |
3521 | int fd = *(int *) opaque; | |
3522 | int target_errno; | |
3523 | ||
3524 | target_fileio_close (fd, &target_errno); | |
3525 | } | |
3526 | ||
3527 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3528 | return the size of the transferred data. PADDING additional bytes are | |
3529 | available in *BUF_P. This is a helper function for | |
3530 | target_fileio_read_alloc; see the declaration of that function for more | |
3531 | information. */ | |
3532 | ||
3533 | static LONGEST | |
3534 | target_fileio_read_alloc_1 (const char *filename, | |
3535 | gdb_byte **buf_p, int padding) | |
3536 | { | |
3537 | struct cleanup *close_cleanup; | |
3538 | size_t buf_alloc, buf_pos; | |
3539 | gdb_byte *buf; | |
3540 | LONGEST n; | |
3541 | int fd; | |
3542 | int target_errno; | |
3543 | ||
3544 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3545 | if (fd == -1) | |
3546 | return -1; | |
3547 | ||
3548 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3549 | ||
3550 | /* Start by reading up to 4K at a time. The target will throttle | |
3551 | this number down if necessary. */ | |
3552 | buf_alloc = 4096; | |
3553 | buf = xmalloc (buf_alloc); | |
3554 | buf_pos = 0; | |
3555 | while (1) | |
3556 | { | |
3557 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3558 | buf_alloc - buf_pos - padding, buf_pos, | |
3559 | &target_errno); | |
3560 | if (n < 0) | |
3561 | { | |
3562 | /* An error occurred. */ | |
3563 | do_cleanups (close_cleanup); | |
3564 | xfree (buf); | |
3565 | return -1; | |
3566 | } | |
3567 | else if (n == 0) | |
3568 | { | |
3569 | /* Read all there was. */ | |
3570 | do_cleanups (close_cleanup); | |
3571 | if (buf_pos == 0) | |
3572 | xfree (buf); | |
3573 | else | |
3574 | *buf_p = buf; | |
3575 | return buf_pos; | |
3576 | } | |
3577 | ||
3578 | buf_pos += n; | |
3579 | ||
3580 | /* If the buffer is filling up, expand it. */ | |
3581 | if (buf_alloc < buf_pos * 2) | |
3582 | { | |
3583 | buf_alloc *= 2; | |
3584 | buf = xrealloc (buf, buf_alloc); | |
3585 | } | |
3586 | ||
3587 | QUIT; | |
3588 | } | |
3589 | } | |
3590 | ||
3591 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3592 | the size of the transferred data. See the declaration in "target.h" | |
3593 | function for more information about the return value. */ | |
3594 | ||
3595 | LONGEST | |
3596 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3597 | { | |
3598 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3599 | } | |
3600 | ||
3601 | /* Read target file FILENAME. The result is NUL-terminated and | |
3602 | returned as a string, allocated using xmalloc. If an error occurs | |
3603 | or the transfer is unsupported, NULL is returned. Empty objects | |
3604 | are returned as allocated but empty strings. A warning is issued | |
3605 | if the result contains any embedded NUL bytes. */ | |
3606 | ||
3607 | char * | |
3608 | target_fileio_read_stralloc (const char *filename) | |
3609 | { | |
39086a0e PA |
3610 | gdb_byte *buffer; |
3611 | char *bufstr; | |
7313baad UW |
3612 | LONGEST i, transferred; |
3613 | ||
39086a0e PA |
3614 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3615 | bufstr = (char *) buffer; | |
7313baad UW |
3616 | |
3617 | if (transferred < 0) | |
3618 | return NULL; | |
3619 | ||
3620 | if (transferred == 0) | |
3621 | return xstrdup (""); | |
3622 | ||
39086a0e | 3623 | bufstr[transferred] = 0; |
7313baad UW |
3624 | |
3625 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3626 | for (i = strlen (bufstr); i < transferred; i++) |
3627 | if (bufstr[i] != 0) | |
7313baad UW |
3628 | { |
3629 | warning (_("target file %s " | |
3630 | "contained unexpected null characters"), | |
3631 | filename); | |
3632 | break; | |
3633 | } | |
3634 | ||
39086a0e | 3635 | return bufstr; |
7313baad UW |
3636 | } |
3637 | ||
3638 | ||
e0d24f8d WZ |
3639 | static int |
3640 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3641 | { | |
f5656ead | 3642 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3643 | } |
3644 | ||
5009afc5 AS |
3645 | static int |
3646 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3647 | CORE_ADDR addr, | |
3648 | CORE_ADDR start, int length) | |
3649 | { | |
3650 | return addr >= start && addr < start + length; | |
3651 | } | |
3652 | ||
c2250ad1 UW |
3653 | static struct gdbarch * |
3654 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3655 | { | |
f5656ead | 3656 | return target_gdbarch (); |
c2250ad1 UW |
3657 | } |
3658 | ||
c906108c | 3659 | static int |
fba45db2 | 3660 | return_zero (void) |
c906108c SS |
3661 | { |
3662 | return 0; | |
3663 | } | |
3664 | ||
3665 | static int | |
fba45db2 | 3666 | return_one (void) |
c906108c SS |
3667 | { |
3668 | return 1; | |
3669 | } | |
3670 | ||
ccaa32c7 GS |
3671 | static int |
3672 | return_minus_one (void) | |
3673 | { | |
3674 | return -1; | |
3675 | } | |
3676 | ||
1b67eb02 AS |
3677 | static void * |
3678 | return_null (void) | |
3679 | { | |
3680 | return 0; | |
3681 | } | |
3682 | ||
ed9a39eb JM |
3683 | /* |
3684 | * Find the next target down the stack from the specified target. | |
3685 | */ | |
3686 | ||
3687 | struct target_ops * | |
fba45db2 | 3688 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3689 | { |
258b763a | 3690 | return t->beneath; |
ed9a39eb JM |
3691 | } |
3692 | ||
8b06beed TT |
3693 | /* See target.h. */ |
3694 | ||
3695 | struct target_ops * | |
3696 | find_target_at (enum strata stratum) | |
3697 | { | |
3698 | struct target_ops *t; | |
3699 | ||
3700 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3701 | if (t->to_stratum == stratum) | |
3702 | return t; | |
3703 | ||
3704 | return NULL; | |
3705 | } | |
3706 | ||
c906108c SS |
3707 | \f |
3708 | /* The inferior process has died. Long live the inferior! */ | |
3709 | ||
3710 | void | |
fba45db2 | 3711 | generic_mourn_inferior (void) |
c906108c | 3712 | { |
7f9f62ba | 3713 | ptid_t ptid; |
c906108c | 3714 | |
7f9f62ba | 3715 | ptid = inferior_ptid; |
39f77062 | 3716 | inferior_ptid = null_ptid; |
7f9f62ba | 3717 | |
f59f708a PA |
3718 | /* Mark breakpoints uninserted in case something tries to delete a |
3719 | breakpoint while we delete the inferior's threads (which would | |
3720 | fail, since the inferior is long gone). */ | |
3721 | mark_breakpoints_out (); | |
3722 | ||
7f9f62ba PA |
3723 | if (!ptid_equal (ptid, null_ptid)) |
3724 | { | |
3725 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3726 | exit_inferior (pid); |
7f9f62ba PA |
3727 | } |
3728 | ||
f59f708a PA |
3729 | /* Note this wipes step-resume breakpoints, so needs to be done |
3730 | after exit_inferior, which ends up referencing the step-resume | |
3731 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3732 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3733 | |
c906108c SS |
3734 | registers_changed (); |
3735 | ||
c906108c SS |
3736 | reopen_exec_file (); |
3737 | reinit_frame_cache (); | |
3738 | ||
9a4105ab AC |
3739 | if (deprecated_detach_hook) |
3740 | deprecated_detach_hook (); | |
c906108c SS |
3741 | } |
3742 | \f | |
fd0a2a6f MK |
3743 | /* Convert a normal process ID to a string. Returns the string in a |
3744 | static buffer. */ | |
c906108c SS |
3745 | |
3746 | char * | |
39f77062 | 3747 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3748 | { |
fd0a2a6f | 3749 | static char buf[32]; |
c906108c | 3750 | |
5fff8fc0 | 3751 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3752 | return buf; |
3753 | } | |
3754 | ||
2c0b251b | 3755 | static char * |
117de6a9 PA |
3756 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3757 | { | |
3758 | return normal_pid_to_str (ptid); | |
3759 | } | |
3760 | ||
9b4eba8e HZ |
3761 | /* Error-catcher for target_find_memory_regions. */ |
3762 | static int | |
b8edc417 | 3763 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3764 | { |
9b4eba8e | 3765 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3766 | return 0; |
3767 | } | |
3768 | ||
9b4eba8e HZ |
3769 | /* Error-catcher for target_make_corefile_notes. */ |
3770 | static char * | |
3771 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3772 | { |
9b4eba8e | 3773 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3774 | return NULL; |
3775 | } | |
3776 | ||
6b04bdb7 MS |
3777 | /* Error-catcher for target_get_bookmark. */ |
3778 | static gdb_byte * | |
3779 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3780 | { | |
3781 | tcomplain (); | |
3782 | return NULL; | |
3783 | } | |
3784 | ||
3785 | /* Error-catcher for target_goto_bookmark. */ | |
3786 | static void | |
3787 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3788 | { | |
3789 | tcomplain (); | |
3790 | } | |
3791 | ||
c906108c SS |
3792 | /* Set up the handful of non-empty slots needed by the dummy target |
3793 | vector. */ | |
3794 | ||
3795 | static void | |
fba45db2 | 3796 | init_dummy_target (void) |
c906108c SS |
3797 | { |
3798 | dummy_target.to_shortname = "None"; | |
3799 | dummy_target.to_longname = "None"; | |
3800 | dummy_target.to_doc = ""; | |
3801 | dummy_target.to_attach = find_default_attach; | |
136d6dae | 3802 | dummy_target.to_detach = |
52554a0e | 3803 | (void (*)(struct target_ops *, const char *, int))target_ignore; |
c906108c | 3804 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3805 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3806 | dummy_target.to_supports_disable_randomization |
3807 | = find_default_supports_disable_randomization; | |
117de6a9 | 3808 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3809 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3810 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3811 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3812 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3813 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
c35b1492 PA |
3814 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3815 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3816 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3817 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3818 | dummy_target.to_has_execution |
3819 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3820 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3821 | |
3822 | install_dummy_methods (&dummy_target); | |
c906108c | 3823 | } |
c906108c | 3824 | \f |
c906108c | 3825 | static void |
fba45db2 | 3826 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3827 | { |
3828 | debug_target.to_open (args, from_tty); | |
3829 | ||
96baa820 | 3830 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3831 | } |
3832 | ||
f1c07ab0 | 3833 | void |
460014f5 | 3834 | target_close (struct target_ops *targ) |
f1c07ab0 | 3835 | { |
7fdc1521 TT |
3836 | gdb_assert (!target_is_pushed (targ)); |
3837 | ||
f1c07ab0 | 3838 | if (targ->to_xclose != NULL) |
460014f5 | 3839 | targ->to_xclose (targ); |
f1c07ab0 | 3840 | else if (targ->to_close != NULL) |
de90e03d | 3841 | targ->to_close (targ); |
947b8855 PA |
3842 | |
3843 | if (targetdebug) | |
460014f5 | 3844 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3845 | } |
3846 | ||
136d6dae VP |
3847 | void |
3848 | target_attach (char *args, int from_tty) | |
3849 | { | |
3850 | struct target_ops *t; | |
5d502164 | 3851 | |
136d6dae VP |
3852 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3853 | { | |
3854 | if (t->to_attach != NULL) | |
3855 | { | |
3856 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3857 | if (targetdebug) |
3858 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3859 | args, from_tty); | |
136d6dae VP |
3860 | return; |
3861 | } | |
3862 | } | |
3863 | ||
3864 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3865 | _("could not find a target to attach")); |
136d6dae VP |
3866 | } |
3867 | ||
28439f5e PA |
3868 | int |
3869 | target_thread_alive (ptid_t ptid) | |
c906108c | 3870 | { |
28439f5e | 3871 | struct target_ops *t; |
5d502164 | 3872 | |
28439f5e PA |
3873 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3874 | { | |
3875 | if (t->to_thread_alive != NULL) | |
3876 | { | |
3877 | int retval; | |
c906108c | 3878 | |
28439f5e PA |
3879 | retval = t->to_thread_alive (t, ptid); |
3880 | if (targetdebug) | |
3881 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3882 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3883 | |
3884 | return retval; | |
3885 | } | |
3886 | } | |
3887 | ||
3888 | return 0; | |
3889 | } | |
3890 | ||
3891 | void | |
3892 | target_find_new_threads (void) | |
3893 | { | |
3894 | struct target_ops *t; | |
5d502164 | 3895 | |
28439f5e PA |
3896 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3897 | { | |
3898 | if (t->to_find_new_threads != NULL) | |
3899 | { | |
3900 | t->to_find_new_threads (t); | |
3901 | if (targetdebug) | |
3902 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3903 | ||
3904 | return; | |
3905 | } | |
3906 | } | |
c906108c SS |
3907 | } |
3908 | ||
d914c394 SS |
3909 | void |
3910 | target_stop (ptid_t ptid) | |
3911 | { | |
3912 | if (!may_stop) | |
3913 | { | |
3914 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3915 | return; | |
3916 | } | |
3917 | ||
3918 | (*current_target.to_stop) (ptid); | |
3919 | } | |
3920 | ||
c906108c | 3921 | static void |
f045800c | 3922 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3923 | { |
f045800c | 3924 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3925 | |
28439f5e | 3926 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3927 | } |
3928 | ||
09826ec5 PA |
3929 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3930 | result. The LIST incoming argument is released. */ | |
3931 | ||
3932 | static char * | |
3933 | str_comma_list_concat_elem (char *list, const char *elem) | |
3934 | { | |
3935 | if (list == NULL) | |
3936 | return xstrdup (elem); | |
3937 | else | |
3938 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3939 | } | |
3940 | ||
3941 | /* Helper for target_options_to_string. If OPT is present in | |
3942 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3943 | Returns the new resulting string. OPT is removed from | |
3944 | TARGET_OPTIONS. */ | |
3945 | ||
3946 | static char * | |
3947 | do_option (int *target_options, char *ret, | |
3948 | int opt, char *opt_str) | |
3949 | { | |
3950 | if ((*target_options & opt) != 0) | |
3951 | { | |
3952 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3953 | *target_options &= ~opt; | |
3954 | } | |
3955 | ||
3956 | return ret; | |
3957 | } | |
3958 | ||
3959 | char * | |
3960 | target_options_to_string (int target_options) | |
3961 | { | |
3962 | char *ret = NULL; | |
3963 | ||
3964 | #define DO_TARG_OPTION(OPT) \ | |
3965 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3966 | ||
3967 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3968 | ||
3969 | if (target_options != 0) | |
3970 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3971 | ||
3972 | if (ret == NULL) | |
3973 | ret = xstrdup (""); | |
3974 | return ret; | |
3975 | } | |
3976 | ||
bf0c5130 | 3977 | static void |
56be3814 UW |
3978 | debug_print_register (const char * func, |
3979 | struct regcache *regcache, int regno) | |
bf0c5130 | 3980 | { |
f8d29908 | 3981 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3982 | |
bf0c5130 | 3983 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3984 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3985 | && gdbarch_register_name (gdbarch, regno) != NULL |
3986 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3987 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3988 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3989 | else |
3990 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3991 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3992 | { |
e17a4113 | 3993 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3994 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3995 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3996 | |
0ff58721 | 3997 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3998 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3999 | for (i = 0; i < size; i++) |
bf0c5130 AC |
4000 | { |
4001 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
4002 | } | |
81c4a259 | 4003 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 4004 | { |
e17a4113 | 4005 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 4006 | |
0b1553bc UW |
4007 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
4008 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
4009 | } |
4010 | } | |
4011 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4012 | } | |
4013 | ||
28439f5e PA |
4014 | void |
4015 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 4016 | { |
28439f5e | 4017 | struct target_ops *t; |
5d502164 | 4018 | |
28439f5e PA |
4019 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
4020 | { | |
4021 | if (t->to_fetch_registers != NULL) | |
4022 | { | |
4023 | t->to_fetch_registers (t, regcache, regno); | |
4024 | if (targetdebug) | |
4025 | debug_print_register ("target_fetch_registers", regcache, regno); | |
4026 | return; | |
4027 | } | |
4028 | } | |
c906108c SS |
4029 | } |
4030 | ||
28439f5e PA |
4031 | void |
4032 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 4033 | { |
28439f5e | 4034 | struct target_ops *t; |
5d502164 | 4035 | |
d914c394 SS |
4036 | if (!may_write_registers) |
4037 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
4038 | ||
6b84065d TT |
4039 | current_target.to_store_registers (¤t_target, regcache, regno); |
4040 | if (targetdebug) | |
28439f5e | 4041 | { |
6b84065d | 4042 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 4043 | } |
c906108c SS |
4044 | } |
4045 | ||
dc146f7c VP |
4046 | int |
4047 | target_core_of_thread (ptid_t ptid) | |
4048 | { | |
4049 | struct target_ops *t; | |
4050 | ||
4051 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4052 | { | |
4053 | if (t->to_core_of_thread != NULL) | |
4054 | { | |
4055 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 4056 | |
dc146f7c | 4057 | if (targetdebug) |
3e43a32a MS |
4058 | fprintf_unfiltered (gdb_stdlog, |
4059 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 4060 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
4061 | return retval; |
4062 | } | |
4063 | } | |
4064 | ||
4065 | return -1; | |
4066 | } | |
4067 | ||
4a5e7a5b PA |
4068 | int |
4069 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4070 | { | |
4071 | struct target_ops *t; | |
4072 | ||
4073 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4074 | { | |
4075 | if (t->to_verify_memory != NULL) | |
4076 | { | |
4077 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4078 | |
4a5e7a5b | 4079 | if (targetdebug) |
3e43a32a MS |
4080 | fprintf_unfiltered (gdb_stdlog, |
4081 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4082 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4083 | pulongest (size), |
4084 | retval); | |
4085 | return retval; | |
4086 | } | |
4087 | } | |
4088 | ||
4089 | tcomplain (); | |
4090 | } | |
4091 | ||
9c06b0b4 TJB |
4092 | /* The documentation for this function is in its prototype declaration in |
4093 | target.h. */ | |
4094 | ||
4095 | int | |
4096 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4097 | { | |
4098 | struct target_ops *t; | |
4099 | ||
4100 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4101 | if (t->to_insert_mask_watchpoint != NULL) | |
4102 | { | |
4103 | int ret; | |
4104 | ||
4105 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4106 | ||
4107 | if (targetdebug) | |
4108 | fprintf_unfiltered (gdb_stdlog, "\ | |
4109 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4110 | core_addr_to_string (addr), | |
4111 | core_addr_to_string (mask), rw, ret); | |
4112 | ||
4113 | return ret; | |
4114 | } | |
4115 | ||
4116 | return 1; | |
4117 | } | |
4118 | ||
4119 | /* The documentation for this function is in its prototype declaration in | |
4120 | target.h. */ | |
4121 | ||
4122 | int | |
4123 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4124 | { | |
4125 | struct target_ops *t; | |
4126 | ||
4127 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4128 | if (t->to_remove_mask_watchpoint != NULL) | |
4129 | { | |
4130 | int ret; | |
4131 | ||
4132 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4133 | ||
4134 | if (targetdebug) | |
4135 | fprintf_unfiltered (gdb_stdlog, "\ | |
4136 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4137 | core_addr_to_string (addr), | |
4138 | core_addr_to_string (mask), rw, ret); | |
4139 | ||
4140 | return ret; | |
4141 | } | |
4142 | ||
4143 | return 1; | |
4144 | } | |
4145 | ||
4146 | /* The documentation for this function is in its prototype declaration | |
4147 | in target.h. */ | |
4148 | ||
4149 | int | |
4150 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4151 | { | |
4152 | struct target_ops *t; | |
4153 | ||
4154 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4155 | if (t->to_masked_watch_num_registers != NULL) | |
4156 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4157 | ||
4158 | return -1; | |
4159 | } | |
4160 | ||
f1310107 TJB |
4161 | /* The documentation for this function is in its prototype declaration |
4162 | in target.h. */ | |
4163 | ||
4164 | int | |
4165 | target_ranged_break_num_registers (void) | |
4166 | { | |
4167 | struct target_ops *t; | |
4168 | ||
4169 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4170 | if (t->to_ranged_break_num_registers != NULL) | |
4171 | return t->to_ranged_break_num_registers (t); | |
4172 | ||
4173 | return -1; | |
4174 | } | |
4175 | ||
02d27625 MM |
4176 | /* See target.h. */ |
4177 | ||
02d27625 MM |
4178 | struct btrace_target_info * |
4179 | target_enable_btrace (ptid_t ptid) | |
4180 | { | |
4181 | struct target_ops *t; | |
4182 | ||
4183 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4184 | if (t->to_enable_btrace != NULL) | |
4185 | return t->to_enable_btrace (ptid); | |
4186 | ||
4187 | tcomplain (); | |
4188 | return NULL; | |
4189 | } | |
4190 | ||
4191 | /* See target.h. */ | |
4192 | ||
4193 | void | |
4194 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4195 | { | |
4196 | struct target_ops *t; | |
4197 | ||
4198 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4199 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 SDJ |
4200 | { |
4201 | t->to_disable_btrace (btinfo); | |
4202 | return; | |
4203 | } | |
02d27625 MM |
4204 | |
4205 | tcomplain (); | |
4206 | } | |
4207 | ||
4208 | /* See target.h. */ | |
4209 | ||
4210 | void | |
4211 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4212 | { | |
4213 | struct target_ops *t; | |
4214 | ||
4215 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4216 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 SDJ |
4217 | { |
4218 | t->to_teardown_btrace (btinfo); | |
4219 | return; | |
4220 | } | |
02d27625 MM |
4221 | |
4222 | tcomplain (); | |
4223 | } | |
4224 | ||
4225 | /* See target.h. */ | |
4226 | ||
969c39fb MM |
4227 | enum btrace_error |
4228 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
4229 | struct btrace_target_info *btinfo, | |
02d27625 MM |
4230 | enum btrace_read_type type) |
4231 | { | |
4232 | struct target_ops *t; | |
4233 | ||
4234 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4235 | if (t->to_read_btrace != NULL) | |
969c39fb | 4236 | return t->to_read_btrace (btrace, btinfo, type); |
02d27625 MM |
4237 | |
4238 | tcomplain (); | |
969c39fb | 4239 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
4240 | } |
4241 | ||
d02ed0bb MM |
4242 | /* See target.h. */ |
4243 | ||
7c1687a9 MM |
4244 | void |
4245 | target_stop_recording (void) | |
4246 | { | |
4247 | struct target_ops *t; | |
4248 | ||
4249 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4250 | if (t->to_stop_recording != NULL) | |
4251 | { | |
4252 | t->to_stop_recording (); | |
4253 | return; | |
4254 | } | |
4255 | ||
4256 | /* This is optional. */ | |
4257 | } | |
4258 | ||
4259 | /* See target.h. */ | |
4260 | ||
d02ed0bb MM |
4261 | void |
4262 | target_info_record (void) | |
4263 | { | |
4264 | struct target_ops *t; | |
4265 | ||
4266 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4267 | if (t->to_info_record != NULL) | |
4268 | { | |
4269 | t->to_info_record (); | |
4270 | return; | |
4271 | } | |
4272 | ||
4273 | tcomplain (); | |
4274 | } | |
4275 | ||
4276 | /* See target.h. */ | |
4277 | ||
4278 | void | |
85e1311a | 4279 | target_save_record (const char *filename) |
d02ed0bb MM |
4280 | { |
4281 | struct target_ops *t; | |
4282 | ||
4283 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4284 | if (t->to_save_record != NULL) | |
4285 | { | |
4286 | t->to_save_record (filename); | |
4287 | return; | |
4288 | } | |
4289 | ||
4290 | tcomplain (); | |
4291 | } | |
4292 | ||
4293 | /* See target.h. */ | |
4294 | ||
4295 | int | |
4296 | target_supports_delete_record (void) | |
4297 | { | |
4298 | struct target_ops *t; | |
4299 | ||
4300 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4301 | if (t->to_delete_record != NULL) | |
4302 | return 1; | |
4303 | ||
4304 | return 0; | |
4305 | } | |
4306 | ||
4307 | /* See target.h. */ | |
4308 | ||
4309 | void | |
4310 | target_delete_record (void) | |
4311 | { | |
4312 | struct target_ops *t; | |
4313 | ||
4314 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4315 | if (t->to_delete_record != NULL) | |
4316 | { | |
4317 | t->to_delete_record (); | |
4318 | return; | |
4319 | } | |
4320 | ||
4321 | tcomplain (); | |
4322 | } | |
4323 | ||
4324 | /* See target.h. */ | |
4325 | ||
4326 | int | |
4327 | target_record_is_replaying (void) | |
4328 | { | |
4329 | struct target_ops *t; | |
4330 | ||
4331 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4332 | if (t->to_record_is_replaying != NULL) | |
4333 | return t->to_record_is_replaying (); | |
4334 | ||
4335 | return 0; | |
4336 | } | |
4337 | ||
4338 | /* See target.h. */ | |
4339 | ||
4340 | void | |
4341 | target_goto_record_begin (void) | |
4342 | { | |
4343 | struct target_ops *t; | |
4344 | ||
4345 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4346 | if (t->to_goto_record_begin != NULL) | |
4347 | { | |
4348 | t->to_goto_record_begin (); | |
4349 | return; | |
4350 | } | |
4351 | ||
4352 | tcomplain (); | |
4353 | } | |
4354 | ||
4355 | /* See target.h. */ | |
4356 | ||
4357 | void | |
4358 | target_goto_record_end (void) | |
4359 | { | |
4360 | struct target_ops *t; | |
4361 | ||
4362 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4363 | if (t->to_goto_record_end != NULL) | |
4364 | { | |
4365 | t->to_goto_record_end (); | |
4366 | return; | |
4367 | } | |
4368 | ||
4369 | tcomplain (); | |
4370 | } | |
4371 | ||
4372 | /* See target.h. */ | |
4373 | ||
4374 | void | |
4375 | target_goto_record (ULONGEST insn) | |
4376 | { | |
4377 | struct target_ops *t; | |
4378 | ||
4379 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4380 | if (t->to_goto_record != NULL) | |
4381 | { | |
4382 | t->to_goto_record (insn); | |
4383 | return; | |
4384 | } | |
4385 | ||
4386 | tcomplain (); | |
4387 | } | |
4388 | ||
67c86d06 MM |
4389 | /* See target.h. */ |
4390 | ||
4391 | void | |
4392 | target_insn_history (int size, int flags) | |
4393 | { | |
4394 | struct target_ops *t; | |
4395 | ||
4396 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4397 | if (t->to_insn_history != NULL) | |
4398 | { | |
4399 | t->to_insn_history (size, flags); | |
4400 | return; | |
4401 | } | |
4402 | ||
4403 | tcomplain (); | |
4404 | } | |
4405 | ||
4406 | /* See target.h. */ | |
4407 | ||
4408 | void | |
4409 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4410 | { | |
4411 | struct target_ops *t; | |
4412 | ||
4413 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4414 | if (t->to_insn_history_from != NULL) | |
4415 | { | |
4416 | t->to_insn_history_from (from, size, flags); | |
4417 | return; | |
4418 | } | |
4419 | ||
4420 | tcomplain (); | |
4421 | } | |
4422 | ||
4423 | /* See target.h. */ | |
4424 | ||
4425 | void | |
4426 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4427 | { | |
4428 | struct target_ops *t; | |
4429 | ||
4430 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4431 | if (t->to_insn_history_range != NULL) | |
4432 | { | |
4433 | t->to_insn_history_range (begin, end, flags); | |
4434 | return; | |
4435 | } | |
4436 | ||
4437 | tcomplain (); | |
4438 | } | |
4439 | ||
15984c13 MM |
4440 | /* See target.h. */ |
4441 | ||
4442 | void | |
4443 | target_call_history (int size, int flags) | |
4444 | { | |
4445 | struct target_ops *t; | |
4446 | ||
4447 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4448 | if (t->to_call_history != NULL) | |
4449 | { | |
4450 | t->to_call_history (size, flags); | |
4451 | return; | |
4452 | } | |
4453 | ||
4454 | tcomplain (); | |
4455 | } | |
4456 | ||
4457 | /* See target.h. */ | |
4458 | ||
4459 | void | |
4460 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4461 | { | |
4462 | struct target_ops *t; | |
4463 | ||
4464 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4465 | if (t->to_call_history_from != NULL) | |
4466 | { | |
4467 | t->to_call_history_from (begin, size, flags); | |
4468 | return; | |
4469 | } | |
4470 | ||
4471 | tcomplain (); | |
4472 | } | |
4473 | ||
4474 | /* See target.h. */ | |
4475 | ||
4476 | void | |
4477 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4478 | { | |
4479 | struct target_ops *t; | |
4480 | ||
4481 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4482 | if (t->to_call_history_range != NULL) | |
4483 | { | |
4484 | t->to_call_history_range (begin, end, flags); | |
4485 | return; | |
4486 | } | |
4487 | ||
4488 | tcomplain (); | |
4489 | } | |
4490 | ||
c906108c | 4491 | static void |
f32dbf8c | 4492 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4493 | { |
f32dbf8c | 4494 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4495 | |
96baa820 | 4496 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4497 | } |
4498 | ||
ea001bdc MM |
4499 | /* See target.h. */ |
4500 | ||
4501 | const struct frame_unwind * | |
4502 | target_get_unwinder (void) | |
4503 | { | |
4504 | struct target_ops *t; | |
4505 | ||
4506 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4507 | if (t->to_get_unwinder != NULL) | |
4508 | return t->to_get_unwinder; | |
4509 | ||
4510 | return NULL; | |
4511 | } | |
4512 | ||
4513 | /* See target.h. */ | |
4514 | ||
4515 | const struct frame_unwind * | |
4516 | target_get_tailcall_unwinder (void) | |
4517 | { | |
4518 | struct target_ops *t; | |
4519 | ||
4520 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4521 | if (t->to_get_tailcall_unwinder != NULL) | |
4522 | return t->to_get_tailcall_unwinder; | |
4523 | ||
4524 | return NULL; | |
4525 | } | |
4526 | ||
118e6252 MM |
4527 | /* See target.h. */ |
4528 | ||
4529 | CORE_ADDR | |
4530 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4531 | struct gdbarch *gdbarch) | |
4532 | { | |
4533 | for (; ops != NULL; ops = ops->beneath) | |
4534 | if (ops->to_decr_pc_after_break != NULL) | |
4535 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4536 | ||
4537 | return gdbarch_decr_pc_after_break (gdbarch); | |
4538 | } | |
4539 | ||
4540 | /* See target.h. */ | |
4541 | ||
4542 | CORE_ADDR | |
4543 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4544 | { | |
4545 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4546 | } | |
4547 | ||
c906108c | 4548 | static int |
961cb7b5 | 4549 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4550 | int write, struct mem_attrib *attrib, |
4551 | struct target_ops *target) | |
c906108c SS |
4552 | { |
4553 | int retval; | |
4554 | ||
c8e73a31 AC |
4555 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4556 | attrib, target); | |
c906108c | 4557 | |
96baa820 | 4558 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4559 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4560 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4561 | write ? "write" : "read", retval); |
c906108c | 4562 | |
c906108c SS |
4563 | if (retval > 0) |
4564 | { | |
4565 | int i; | |
4566 | ||
96baa820 | 4567 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4568 | for (i = 0; i < retval; i++) |
4569 | { | |
53b71562 | 4570 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4571 | { |
4572 | if (targetdebug < 2 && i > 0) | |
4573 | { | |
4574 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4575 | break; | |
4576 | } | |
4577 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4578 | } | |
2bc416ba | 4579 | |
96baa820 | 4580 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4581 | } |
4582 | } | |
4583 | ||
96baa820 | 4584 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4585 | |
4586 | return retval; | |
4587 | } | |
4588 | ||
4589 | static void | |
fba45db2 | 4590 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4591 | { |
4592 | debug_target.to_files_info (target); | |
4593 | ||
96baa820 | 4594 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4595 | } |
4596 | ||
4597 | static int | |
3db08215 | 4598 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4599 | struct bp_target_info *bp_tgt) |
c906108c SS |
4600 | { |
4601 | int retval; | |
4602 | ||
6b84065d | 4603 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4604 | |
96baa820 | 4605 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4606 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4607 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4608 | (unsigned long) retval); |
c906108c SS |
4609 | return retval; |
4610 | } | |
4611 | ||
4612 | static int | |
3db08215 | 4613 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4614 | struct bp_target_info *bp_tgt) |
c906108c SS |
4615 | { |
4616 | int retval; | |
4617 | ||
6b84065d | 4618 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4619 | |
96baa820 | 4620 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4621 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4622 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4623 | (unsigned long) retval); |
c906108c SS |
4624 | return retval; |
4625 | } | |
4626 | ||
ccaa32c7 | 4627 | static int |
5461485a TT |
4628 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4629 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4630 | { |
4631 | int retval; | |
4632 | ||
5461485a TT |
4633 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4634 | type, cnt, from_tty); | |
ccaa32c7 GS |
4635 | |
4636 | fprintf_unfiltered (gdb_stdlog, | |
4637 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4638 | (unsigned long) type, | |
4639 | (unsigned long) cnt, | |
4640 | (unsigned long) from_tty, | |
4641 | (unsigned long) retval); | |
4642 | return retval; | |
4643 | } | |
4644 | ||
e0d24f8d WZ |
4645 | static int |
4646 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
4647 | { | |
4648 | CORE_ADDR retval; | |
4649 | ||
4650 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
4651 | ||
4652 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4653 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4654 | core_addr_to_string (addr), (unsigned long) len, | |
4655 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4656 | return retval; |
4657 | } | |
4658 | ||
0cf6dd15 TJB |
4659 | static int |
4660 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
4661 | struct expression *cond) | |
4662 | { | |
4663 | int retval; | |
4664 | ||
3e43a32a MS |
4665 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
4666 | rw, cond); | |
0cf6dd15 TJB |
4667 | |
4668 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4669 | "target_can_accel_watchpoint_condition " |
4670 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4671 | core_addr_to_string (addr), len, rw, |
4672 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4673 | return retval; |
4674 | } | |
4675 | ||
ccaa32c7 | 4676 | static int |
6a109b6b | 4677 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4678 | { |
4679 | int retval; | |
4680 | ||
6a109b6b | 4681 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4682 | |
4683 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4684 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4685 | (unsigned long) retval); |
4686 | return retval; | |
4687 | } | |
4688 | ||
4aa7a7f5 JJ |
4689 | static int |
4690 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4691 | { |
4aa7a7f5 | 4692 | int retval; |
ccaa32c7 | 4693 | |
4aa7a7f5 | 4694 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4695 | |
4696 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4697 | "target_stopped_data_address ([%s]) = %ld\n", |
4698 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4699 | (unsigned long)retval); |
ccaa32c7 GS |
4700 | return retval; |
4701 | } | |
4702 | ||
5009afc5 AS |
4703 | static int |
4704 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4705 | CORE_ADDR addr, | |
4706 | CORE_ADDR start, int length) | |
4707 | { | |
4708 | int retval; | |
4709 | ||
4710 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4711 | start, length); | |
4712 | ||
4713 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4714 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4715 | core_addr_to_string (addr), core_addr_to_string (start), | |
4716 | length, retval); | |
5009afc5 AS |
4717 | return retval; |
4718 | } | |
4719 | ||
ccaa32c7 | 4720 | static int |
23a26771 TT |
4721 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4722 | struct gdbarch *gdbarch, | |
a6d9a66e | 4723 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4724 | { |
4725 | int retval; | |
4726 | ||
23a26771 TT |
4727 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4728 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4729 | |
4730 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4731 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4732 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4733 | (unsigned long) retval); |
4734 | return retval; | |
4735 | } | |
4736 | ||
4737 | static int | |
a64dc96c TT |
4738 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4739 | struct gdbarch *gdbarch, | |
a6d9a66e | 4740 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4741 | { |
4742 | int retval; | |
4743 | ||
a64dc96c TT |
4744 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4745 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4746 | |
4747 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4748 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4749 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4750 | (unsigned long) retval); |
4751 | return retval; | |
4752 | } | |
4753 | ||
4754 | static int | |
0cf6dd15 TJB |
4755 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
4756 | struct expression *cond) | |
ccaa32c7 GS |
4757 | { |
4758 | int retval; | |
4759 | ||
0cf6dd15 | 4760 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4761 | |
4762 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4763 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4764 | core_addr_to_string (addr), len, type, | |
4765 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4766 | return retval; |
4767 | } | |
4768 | ||
4769 | static int | |
0cf6dd15 TJB |
4770 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type, |
4771 | struct expression *cond) | |
ccaa32c7 GS |
4772 | { |
4773 | int retval; | |
4774 | ||
0cf6dd15 | 4775 | retval = debug_target.to_remove_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4776 | |
4777 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4778 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4779 | core_addr_to_string (addr), len, type, | |
4780 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4781 | return retval; |
4782 | } | |
4783 | ||
c906108c | 4784 | static void |
fba45db2 | 4785 | debug_to_terminal_init (void) |
c906108c SS |
4786 | { |
4787 | debug_target.to_terminal_init (); | |
4788 | ||
96baa820 | 4789 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4790 | } |
4791 | ||
4792 | static void | |
fba45db2 | 4793 | debug_to_terminal_inferior (void) |
c906108c SS |
4794 | { |
4795 | debug_target.to_terminal_inferior (); | |
4796 | ||
96baa820 | 4797 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4798 | } |
4799 | ||
4800 | static void | |
fba45db2 | 4801 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
4802 | { |
4803 | debug_target.to_terminal_ours_for_output (); | |
4804 | ||
96baa820 | 4805 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4806 | } |
4807 | ||
4808 | static void | |
fba45db2 | 4809 | debug_to_terminal_ours (void) |
c906108c SS |
4810 | { |
4811 | debug_target.to_terminal_ours (); | |
4812 | ||
96baa820 | 4813 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4814 | } |
4815 | ||
a790ad35 SC |
4816 | static void |
4817 | debug_to_terminal_save_ours (void) | |
4818 | { | |
4819 | debug_target.to_terminal_save_ours (); | |
4820 | ||
4821 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4822 | } | |
4823 | ||
c906108c | 4824 | static void |
503ebb2c | 4825 | debug_to_terminal_info (const char *arg, int from_tty) |
c906108c SS |
4826 | { |
4827 | debug_target.to_terminal_info (arg, from_tty); | |
4828 | ||
96baa820 | 4829 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4830 | from_tty); |
4831 | } | |
4832 | ||
c906108c | 4833 | static void |
fba45db2 | 4834 | debug_to_load (char *args, int from_tty) |
c906108c SS |
4835 | { |
4836 | debug_target.to_load (args, from_tty); | |
4837 | ||
96baa820 | 4838 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4839 | } |
4840 | ||
c906108c | 4841 | static void |
39f77062 | 4842 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 4843 | { |
39f77062 | 4844 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 4845 | |
96baa820 | 4846 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4847 | ptid_get_pid (ptid)); |
c906108c SS |
4848 | } |
4849 | ||
77b06cd7 | 4850 | static int |
fba45db2 | 4851 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 4852 | { |
77b06cd7 TJB |
4853 | int retval; |
4854 | ||
4855 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
4856 | ||
4857 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4858 | pid, retval); | |
c906108c | 4859 | |
77b06cd7 | 4860 | return retval; |
c906108c SS |
4861 | } |
4862 | ||
4863 | static int | |
fba45db2 | 4864 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 4865 | { |
c5aa993b | 4866 | int retval; |
c906108c SS |
4867 | |
4868 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
4869 | ||
96baa820 | 4870 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4871 | pid, retval); |
c906108c SS |
4872 | |
4873 | return retval; | |
4874 | } | |
4875 | ||
77b06cd7 | 4876 | static int |
fba45db2 | 4877 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 4878 | { |
77b06cd7 TJB |
4879 | int retval; |
4880 | ||
4881 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 4882 | |
77b06cd7 TJB |
4883 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4884 | pid, retval); | |
4885 | ||
4886 | return retval; | |
c906108c SS |
4887 | } |
4888 | ||
4889 | static int | |
fba45db2 | 4890 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 4891 | { |
c5aa993b | 4892 | int retval; |
c906108c SS |
4893 | |
4894 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
4895 | ||
96baa820 | 4896 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4897 | pid, retval); |
c906108c SS |
4898 | |
4899 | return retval; | |
4900 | } | |
4901 | ||
77b06cd7 | 4902 | static int |
fba45db2 | 4903 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 4904 | { |
77b06cd7 TJB |
4905 | int retval; |
4906 | ||
4907 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 4908 | |
77b06cd7 TJB |
4909 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4910 | pid, retval); | |
4911 | ||
4912 | return retval; | |
c906108c SS |
4913 | } |
4914 | ||
4915 | static int | |
fba45db2 | 4916 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 4917 | { |
c5aa993b | 4918 | int retval; |
c906108c SS |
4919 | |
4920 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
4921 | ||
96baa820 | 4922 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4923 | pid, retval); |
c906108c SS |
4924 | |
4925 | return retval; | |
4926 | } | |
4927 | ||
c906108c | 4928 | static int |
fba45db2 | 4929 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 4930 | { |
c5aa993b | 4931 | int has_exited; |
c906108c SS |
4932 | |
4933 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
4934 | ||
96baa820 | 4935 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4936 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4937 | |
4938 | return has_exited; | |
4939 | } | |
4940 | ||
c906108c | 4941 | static int |
fba45db2 | 4942 | debug_to_can_run (void) |
c906108c SS |
4943 | { |
4944 | int retval; | |
4945 | ||
4946 | retval = debug_target.to_can_run (); | |
4947 | ||
96baa820 | 4948 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4949 | |
4950 | return retval; | |
4951 | } | |
4952 | ||
c2250ad1 UW |
4953 | static struct gdbarch * |
4954 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4955 | { | |
4956 | struct gdbarch *retval; | |
4957 | ||
4958 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4959 | ||
3e43a32a MS |
4960 | fprintf_unfiltered (gdb_stdlog, |
4961 | "target_thread_architecture (%s) = %s [%s]\n", | |
4962 | target_pid_to_str (ptid), | |
4963 | host_address_to_string (retval), | |
c2250ad1 UW |
4964 | gdbarch_bfd_arch_info (retval)->printable_name); |
4965 | return retval; | |
4966 | } | |
4967 | ||
c906108c | 4968 | static void |
94cc34af | 4969 | debug_to_stop (ptid_t ptid) |
c906108c | 4970 | { |
94cc34af | 4971 | debug_target.to_stop (ptid); |
c906108c | 4972 | |
94cc34af PA |
4973 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4974 | target_pid_to_str (ptid)); | |
c906108c SS |
4975 | } |
4976 | ||
96baa820 JM |
4977 | static void |
4978 | debug_to_rcmd (char *command, | |
d9fcf2fb | 4979 | struct ui_file *outbuf) |
96baa820 JM |
4980 | { |
4981 | debug_target.to_rcmd (command, outbuf); | |
4982 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
4983 | } | |
4984 | ||
c906108c | 4985 | static char * |
fba45db2 | 4986 | debug_to_pid_to_exec_file (int pid) |
c906108c | 4987 | { |
c5aa993b | 4988 | char *exec_file; |
c906108c SS |
4989 | |
4990 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
4991 | ||
96baa820 | 4992 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4993 | pid, exec_file); |
c906108c SS |
4994 | |
4995 | return exec_file; | |
4996 | } | |
4997 | ||
c906108c | 4998 | static void |
fba45db2 | 4999 | setup_target_debug (void) |
c906108c SS |
5000 | { |
5001 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
5002 | ||
5003 | current_target.to_open = debug_to_open; | |
c906108c | 5004 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 5005 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 5006 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
5007 | current_target.to_files_info = debug_to_files_info; |
5008 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
5009 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
5010 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
5011 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
5012 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
5013 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
5014 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
5015 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
5016 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
5017 | current_target.to_watchpoint_addr_within_range |
5018 | = debug_to_watchpoint_addr_within_range; | |
5019 | current_target.to_region_ok_for_hw_watchpoint | |
5020 | = debug_to_region_ok_for_hw_watchpoint; | |
5021 | current_target.to_can_accel_watchpoint_condition | |
5022 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
5023 | current_target.to_terminal_init = debug_to_terminal_init; |
5024 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
5025 | current_target.to_terminal_ours_for_output |
5026 | = debug_to_terminal_ours_for_output; | |
c906108c | 5027 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 5028 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 5029 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 5030 | current_target.to_load = debug_to_load; |
c906108c | 5031 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
5032 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
5033 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
5034 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
5035 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
5036 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
5037 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 5038 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 5039 | current_target.to_can_run = debug_to_can_run; |
c906108c | 5040 | current_target.to_stop = debug_to_stop; |
96baa820 | 5041 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 5042 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 5043 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 5044 | } |
c906108c | 5045 | \f |
c5aa993b JM |
5046 | |
5047 | static char targ_desc[] = | |
3e43a32a MS |
5048 | "Names of targets and files being debugged.\nShows the entire \ |
5049 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
5050 | core-file, and process, if any), as well as the symbol file name."; |
5051 | ||
96baa820 JM |
5052 | static void |
5053 | do_monitor_command (char *cmd, | |
5054 | int from_tty) | |
5055 | { | |
2b5fe715 AC |
5056 | if ((current_target.to_rcmd |
5057 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 5058 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
5059 | && (debug_target.to_rcmd |
5060 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 5061 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
5062 | target_rcmd (cmd, gdb_stdtarg); |
5063 | } | |
5064 | ||
87680a14 JB |
5065 | /* Print the name of each layers of our target stack. */ |
5066 | ||
5067 | static void | |
5068 | maintenance_print_target_stack (char *cmd, int from_tty) | |
5069 | { | |
5070 | struct target_ops *t; | |
5071 | ||
5072 | printf_filtered (_("The current target stack is:\n")); | |
5073 | ||
5074 | for (t = target_stack; t != NULL; t = t->beneath) | |
5075 | { | |
5076 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
5077 | } | |
5078 | } | |
5079 | ||
c6ebd6cf VP |
5080 | /* Controls if async mode is permitted. */ |
5081 | int target_async_permitted = 0; | |
5082 | ||
5083 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 5084 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
5085 | static int target_async_permitted_1 = 0; |
5086 | ||
5087 | static void | |
9401a810 PA |
5088 | set_target_async_command (char *args, int from_tty, |
5089 | struct cmd_list_element *c) | |
c6ebd6cf | 5090 | { |
c35b1492 | 5091 | if (have_live_inferiors ()) |
c6ebd6cf VP |
5092 | { |
5093 | target_async_permitted_1 = target_async_permitted; | |
5094 | error (_("Cannot change this setting while the inferior is running.")); | |
5095 | } | |
5096 | ||
5097 | target_async_permitted = target_async_permitted_1; | |
5098 | } | |
5099 | ||
5100 | static void | |
9401a810 PA |
5101 | show_target_async_command (struct ui_file *file, int from_tty, |
5102 | struct cmd_list_element *c, | |
5103 | const char *value) | |
c6ebd6cf | 5104 | { |
3e43a32a MS |
5105 | fprintf_filtered (file, |
5106 | _("Controlling the inferior in " | |
5107 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5108 | } |
5109 | ||
d914c394 SS |
5110 | /* Temporary copies of permission settings. */ |
5111 | ||
5112 | static int may_write_registers_1 = 1; | |
5113 | static int may_write_memory_1 = 1; | |
5114 | static int may_insert_breakpoints_1 = 1; | |
5115 | static int may_insert_tracepoints_1 = 1; | |
5116 | static int may_insert_fast_tracepoints_1 = 1; | |
5117 | static int may_stop_1 = 1; | |
5118 | ||
5119 | /* Make the user-set values match the real values again. */ | |
5120 | ||
5121 | void | |
5122 | update_target_permissions (void) | |
5123 | { | |
5124 | may_write_registers_1 = may_write_registers; | |
5125 | may_write_memory_1 = may_write_memory; | |
5126 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5127 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5128 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5129 | may_stop_1 = may_stop; | |
5130 | } | |
5131 | ||
5132 | /* The one function handles (most of) the permission flags in the same | |
5133 | way. */ | |
5134 | ||
5135 | static void | |
5136 | set_target_permissions (char *args, int from_tty, | |
5137 | struct cmd_list_element *c) | |
5138 | { | |
5139 | if (target_has_execution) | |
5140 | { | |
5141 | update_target_permissions (); | |
5142 | error (_("Cannot change this setting while the inferior is running.")); | |
5143 | } | |
5144 | ||
5145 | /* Make the real values match the user-changed values. */ | |
5146 | may_write_registers = may_write_registers_1; | |
5147 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5148 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5149 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5150 | may_stop = may_stop_1; | |
5151 | update_observer_mode (); | |
5152 | } | |
5153 | ||
5154 | /* Set memory write permission independently of observer mode. */ | |
5155 | ||
5156 | static void | |
5157 | set_write_memory_permission (char *args, int from_tty, | |
5158 | struct cmd_list_element *c) | |
5159 | { | |
5160 | /* Make the real values match the user-changed values. */ | |
5161 | may_write_memory = may_write_memory_1; | |
5162 | update_observer_mode (); | |
5163 | } | |
5164 | ||
5165 | ||
c906108c | 5166 | void |
fba45db2 | 5167 | initialize_targets (void) |
c906108c SS |
5168 | { |
5169 | init_dummy_target (); | |
5170 | push_target (&dummy_target); | |
5171 | ||
5172 | add_info ("target", target_info, targ_desc); | |
5173 | add_info ("files", target_info, targ_desc); | |
5174 | ||
ccce17b0 | 5175 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5176 | Set target debugging."), _("\ |
5177 | Show target debugging."), _("\ | |
333dabeb DJ |
5178 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5179 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5180 | command."), |
ccce17b0 YQ |
5181 | NULL, |
5182 | show_targetdebug, | |
5183 | &setdebuglist, &showdebuglist); | |
3a11626d | 5184 | |
2bc416ba | 5185 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5186 | &trust_readonly, _("\ |
5187 | Set mode for reading from readonly sections."), _("\ | |
5188 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5189 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5190 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5191 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5192 | NULL, |
920d2a44 | 5193 | show_trust_readonly, |
e707bbc2 | 5194 | &setlist, &showlist); |
96baa820 JM |
5195 | |
5196 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5197 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5198 | |
87680a14 JB |
5199 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5200 | _("Print the name of each layer of the internal target stack."), | |
5201 | &maintenanceprintlist); | |
5202 | ||
c6ebd6cf VP |
5203 | add_setshow_boolean_cmd ("target-async", no_class, |
5204 | &target_async_permitted_1, _("\ | |
5205 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5206 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5207 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5208 | set_target_async_command, |
5209 | show_target_async_command, | |
c6ebd6cf VP |
5210 | &setlist, |
5211 | &showlist); | |
5212 | ||
d914c394 SS |
5213 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5214 | &may_write_registers_1, _("\ | |
5215 | Set permission to write into registers."), _("\ | |
5216 | Show permission to write into registers."), _("\ | |
5217 | When this permission is on, GDB may write into the target's registers.\n\ | |
5218 | Otherwise, any sort of write attempt will result in an error."), | |
5219 | set_target_permissions, NULL, | |
5220 | &setlist, &showlist); | |
5221 | ||
5222 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5223 | &may_write_memory_1, _("\ | |
5224 | Set permission to write into target memory."), _("\ | |
5225 | Show permission to write into target memory."), _("\ | |
5226 | When this permission is on, GDB may write into the target's memory.\n\ | |
5227 | Otherwise, any sort of write attempt will result in an error."), | |
5228 | set_write_memory_permission, NULL, | |
5229 | &setlist, &showlist); | |
5230 | ||
5231 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5232 | &may_insert_breakpoints_1, _("\ | |
5233 | Set permission to insert breakpoints in the target."), _("\ | |
5234 | Show permission to insert breakpoints in the target."), _("\ | |
5235 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5236 | Otherwise, any sort of insertion attempt will result in an error."), | |
5237 | set_target_permissions, NULL, | |
5238 | &setlist, &showlist); | |
5239 | ||
5240 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5241 | &may_insert_tracepoints_1, _("\ | |
5242 | Set permission to insert tracepoints in the target."), _("\ | |
5243 | Show permission to insert tracepoints in the target."), _("\ | |
5244 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5245 | Otherwise, any sort of insertion attempt will result in an error."), | |
5246 | set_target_permissions, NULL, | |
5247 | &setlist, &showlist); | |
5248 | ||
5249 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5250 | &may_insert_fast_tracepoints_1, _("\ | |
5251 | Set permission to insert fast tracepoints in the target."), _("\ | |
5252 | Show permission to insert fast tracepoints in the target."), _("\ | |
5253 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5254 | Otherwise, any sort of insertion attempt will result in an error."), | |
5255 | set_target_permissions, NULL, | |
5256 | &setlist, &showlist); | |
5257 | ||
5258 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5259 | &may_stop_1, _("\ | |
5260 | Set permission to interrupt or signal the target."), _("\ | |
5261 | Show permission to interrupt or signal the target."), _("\ | |
5262 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5263 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5264 | set_target_permissions, NULL, | |
5265 | &setlist, &showlist); | |
c906108c | 5266 | } |