Commit | Line | Data |
---|---|---|
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 | |
ccaa32c7 GS |
103 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
104 | ||
a6d9a66e UW |
105 | static int debug_to_insert_hw_breakpoint (struct gdbarch *, |
106 | struct bp_target_info *); | |
ccaa32c7 | 107 | |
a6d9a66e UW |
108 | static int debug_to_remove_hw_breakpoint (struct gdbarch *, |
109 | struct bp_target_info *); | |
ccaa32c7 | 110 | |
0cf6dd15 TJB |
111 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int, |
112 | struct expression *); | |
ccaa32c7 | 113 | |
0cf6dd15 TJB |
114 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int, |
115 | struct expression *); | |
ccaa32c7 | 116 | |
4aa7a7f5 | 117 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 118 | |
5009afc5 AS |
119 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
120 | CORE_ADDR, CORE_ADDR, int); | |
121 | ||
e0d24f8d WZ |
122 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
123 | ||
0cf6dd15 TJB |
124 | static int debug_to_can_accel_watchpoint_condition (CORE_ADDR, int, int, |
125 | struct expression *); | |
126 | ||
a14ed312 | 127 | static void debug_to_terminal_init (void); |
c906108c | 128 | |
a14ed312 | 129 | static void debug_to_terminal_inferior (void); |
c906108c | 130 | |
a14ed312 | 131 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 132 | |
a790ad35 SC |
133 | static void debug_to_terminal_save_ours (void); |
134 | ||
a14ed312 | 135 | static void debug_to_terminal_ours (void); |
c906108c | 136 | |
a14ed312 | 137 | static void debug_to_load (char *, int); |
c906108c | 138 | |
a14ed312 | 139 | static int debug_to_can_run (void); |
c906108c | 140 | |
94cc34af | 141 | static void debug_to_stop (ptid_t); |
c906108c | 142 | |
c906108c | 143 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 144 | array; the current index into the array; the allocated size of the |
c906108c SS |
145 | array. */ |
146 | struct target_ops **target_structs; | |
147 | unsigned target_struct_size; | |
c906108c SS |
148 | unsigned target_struct_allocsize; |
149 | #define DEFAULT_ALLOCSIZE 10 | |
150 | ||
151 | /* The initial current target, so that there is always a semi-valid | |
152 | current target. */ | |
153 | ||
154 | static struct target_ops dummy_target; | |
155 | ||
156 | /* Top of target stack. */ | |
157 | ||
258b763a | 158 | static struct target_ops *target_stack; |
c906108c SS |
159 | |
160 | /* The target structure we are currently using to talk to a process | |
161 | or file or whatever "inferior" we have. */ | |
162 | ||
163 | struct target_ops current_target; | |
164 | ||
165 | /* Command list for target. */ | |
166 | ||
167 | static struct cmd_list_element *targetlist = NULL; | |
168 | ||
cf7a04e8 DJ |
169 | /* Nonzero if we should trust readonly sections from the |
170 | executable when reading memory. */ | |
171 | ||
172 | static int trust_readonly = 0; | |
173 | ||
8defab1a DJ |
174 | /* Nonzero if we should show true memory content including |
175 | memory breakpoint inserted by gdb. */ | |
176 | ||
177 | static int show_memory_breakpoints = 0; | |
178 | ||
d914c394 SS |
179 | /* These globals control whether GDB attempts to perform these |
180 | operations; they are useful for targets that need to prevent | |
181 | inadvertant disruption, such as in non-stop mode. */ | |
182 | ||
183 | int may_write_registers = 1; | |
184 | ||
185 | int may_write_memory = 1; | |
186 | ||
187 | int may_insert_breakpoints = 1; | |
188 | ||
189 | int may_insert_tracepoints = 1; | |
190 | ||
191 | int may_insert_fast_tracepoints = 1; | |
192 | ||
193 | int may_stop = 1; | |
194 | ||
c906108c SS |
195 | /* Non-zero if we want to see trace of target level stuff. */ |
196 | ||
ccce17b0 | 197 | static unsigned int targetdebug = 0; |
920d2a44 AC |
198 | static void |
199 | show_targetdebug (struct ui_file *file, int from_tty, | |
200 | struct cmd_list_element *c, const char *value) | |
201 | { | |
202 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
203 | } | |
c906108c | 204 | |
a14ed312 | 205 | static void setup_target_debug (void); |
c906108c | 206 | |
c906108c SS |
207 | /* The user just typed 'target' without the name of a target. */ |
208 | ||
c906108c | 209 | static void |
fba45db2 | 210 | target_command (char *arg, int from_tty) |
c906108c SS |
211 | { |
212 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
213 | gdb_stdout); | |
214 | } | |
215 | ||
c35b1492 PA |
216 | /* Default target_has_* methods for process_stratum targets. */ |
217 | ||
218 | int | |
219 | default_child_has_all_memory (struct target_ops *ops) | |
220 | { | |
221 | /* If no inferior selected, then we can't read memory here. */ | |
222 | if (ptid_equal (inferior_ptid, null_ptid)) | |
223 | return 0; | |
224 | ||
225 | return 1; | |
226 | } | |
227 | ||
228 | int | |
229 | default_child_has_memory (struct target_ops *ops) | |
230 | { | |
231 | /* If no inferior selected, then we can't read memory here. */ | |
232 | if (ptid_equal (inferior_ptid, null_ptid)) | |
233 | return 0; | |
234 | ||
235 | return 1; | |
236 | } | |
237 | ||
238 | int | |
239 | default_child_has_stack (struct target_ops *ops) | |
240 | { | |
241 | /* If no inferior selected, there's no stack. */ | |
242 | if (ptid_equal (inferior_ptid, null_ptid)) | |
243 | return 0; | |
244 | ||
245 | return 1; | |
246 | } | |
247 | ||
248 | int | |
249 | default_child_has_registers (struct target_ops *ops) | |
250 | { | |
251 | /* Can't read registers from no inferior. */ | |
252 | if (ptid_equal (inferior_ptid, null_ptid)) | |
253 | return 0; | |
254 | ||
255 | return 1; | |
256 | } | |
257 | ||
258 | int | |
aeaec162 | 259 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
260 | { |
261 | /* If there's no thread selected, then we can't make it run through | |
262 | hoops. */ | |
aeaec162 | 263 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
264 | return 0; |
265 | ||
266 | return 1; | |
267 | } | |
268 | ||
269 | ||
270 | int | |
271 | target_has_all_memory_1 (void) | |
272 | { | |
273 | struct target_ops *t; | |
274 | ||
275 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
276 | if (t->to_has_all_memory (t)) | |
277 | return 1; | |
278 | ||
279 | return 0; | |
280 | } | |
281 | ||
282 | int | |
283 | target_has_memory_1 (void) | |
284 | { | |
285 | struct target_ops *t; | |
286 | ||
287 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
288 | if (t->to_has_memory (t)) | |
289 | return 1; | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
294 | int | |
295 | target_has_stack_1 (void) | |
296 | { | |
297 | struct target_ops *t; | |
298 | ||
299 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
300 | if (t->to_has_stack (t)) | |
301 | return 1; | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | int | |
307 | target_has_registers_1 (void) | |
308 | { | |
309 | struct target_ops *t; | |
310 | ||
311 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
312 | if (t->to_has_registers (t)) | |
313 | return 1; | |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
318 | int | |
aeaec162 | 319 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
320 | { |
321 | struct target_ops *t; | |
322 | ||
323 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 324 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
325 | return 1; |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
aeaec162 TT |
330 | int |
331 | target_has_execution_current (void) | |
332 | { | |
333 | return target_has_execution_1 (inferior_ptid); | |
334 | } | |
335 | ||
c22a2b88 TT |
336 | /* Complete initialization of T. This ensures that various fields in |
337 | T are set, if needed by the target implementation. */ | |
c906108c SS |
338 | |
339 | void | |
c22a2b88 | 340 | complete_target_initialization (struct target_ops *t) |
c906108c | 341 | { |
0088c768 | 342 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
343 | if (t->to_xfer_partial == NULL) |
344 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 345 | |
c35b1492 PA |
346 | if (t->to_has_all_memory == NULL) |
347 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
348 | ||
349 | if (t->to_has_memory == NULL) | |
350 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
351 | ||
352 | if (t->to_has_stack == NULL) | |
353 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
354 | ||
355 | if (t->to_has_registers == NULL) | |
356 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
357 | ||
358 | if (t->to_has_execution == NULL) | |
aeaec162 | 359 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
360 | |
361 | install_delegators (t); | |
c22a2b88 TT |
362 | } |
363 | ||
364 | /* Add possible target architecture T to the list and add a new | |
365 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
366 | completer if not NULL. */ | |
367 | ||
368 | void | |
369 | add_target_with_completer (struct target_ops *t, | |
370 | completer_ftype *completer) | |
371 | { | |
372 | struct cmd_list_element *c; | |
373 | ||
374 | complete_target_initialization (t); | |
c35b1492 | 375 | |
c906108c SS |
376 | if (!target_structs) |
377 | { | |
378 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
379 | target_structs = (struct target_ops **) xmalloc | |
380 | (target_struct_allocsize * sizeof (*target_structs)); | |
381 | } | |
382 | if (target_struct_size >= target_struct_allocsize) | |
383 | { | |
384 | target_struct_allocsize *= 2; | |
385 | target_structs = (struct target_ops **) | |
c5aa993b JM |
386 | xrealloc ((char *) target_structs, |
387 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
388 | } |
389 | target_structs[target_struct_size++] = t; | |
c906108c SS |
390 | |
391 | if (targetlist == NULL) | |
1bedd215 AC |
392 | add_prefix_cmd ("target", class_run, target_command, _("\ |
393 | Connect to a target machine or process.\n\ | |
c906108c SS |
394 | The first argument is the type or protocol of the target machine.\n\ |
395 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
396 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 397 | `help target ' followed by the protocol name."), |
c906108c | 398 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
399 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
400 | &targetlist); | |
401 | if (completer != NULL) | |
402 | set_cmd_completer (c, completer); | |
403 | } | |
404 | ||
405 | /* Add a possible target architecture to the list. */ | |
406 | ||
407 | void | |
408 | add_target (struct target_ops *t) | |
409 | { | |
410 | add_target_with_completer (t, NULL); | |
c906108c SS |
411 | } |
412 | ||
b48d48eb MM |
413 | /* See target.h. */ |
414 | ||
415 | void | |
416 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
417 | { | |
418 | struct cmd_list_element *c; | |
419 | char *alt; | |
420 | ||
421 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
422 | see PR cli/15104. */ | |
423 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
424 | alt = xstrprintf ("target %s", t->to_shortname); | |
425 | deprecate_cmd (c, alt); | |
426 | } | |
427 | ||
c906108c SS |
428 | /* Stub functions */ |
429 | ||
430 | void | |
fba45db2 | 431 | target_ignore (void) |
c906108c SS |
432 | { |
433 | } | |
434 | ||
7d85a9c0 JB |
435 | void |
436 | target_kill (void) | |
437 | { | |
438 | struct target_ops *t; | |
439 | ||
440 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
441 | if (t->to_kill != NULL) | |
442 | { | |
443 | if (targetdebug) | |
444 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
445 | ||
446 | t->to_kill (t); | |
447 | return; | |
448 | } | |
449 | ||
450 | noprocess (); | |
451 | } | |
452 | ||
11cf8741 JM |
453 | void |
454 | target_load (char *arg, int from_tty) | |
455 | { | |
4e5d721f | 456 | target_dcache_invalidate (); |
11cf8741 JM |
457 | (*current_target.to_load) (arg, from_tty); |
458 | } | |
459 | ||
947b8855 PA |
460 | void |
461 | target_create_inferior (char *exec_file, char *args, | |
462 | char **env, int from_tty) | |
136d6dae VP |
463 | { |
464 | struct target_ops *t; | |
5d502164 | 465 | |
136d6dae VP |
466 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
467 | { | |
468 | if (t->to_create_inferior != NULL) | |
469 | { | |
470 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
471 | if (targetdebug) |
472 | fprintf_unfiltered (gdb_stdlog, | |
473 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
474 | exec_file, args, from_tty); | |
136d6dae VP |
475 | return; |
476 | } | |
477 | } | |
478 | ||
479 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 480 | _("could not find a target to create inferior")); |
136d6dae VP |
481 | } |
482 | ||
d9d2d8b6 PA |
483 | void |
484 | target_terminal_inferior (void) | |
485 | { | |
486 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 487 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
488 | this point the target is not async yet. However, if sync_execution |
489 | is not set, we know it will become async prior to resume. */ | |
490 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
491 | return; |
492 | ||
493 | /* If GDB is resuming the inferior in the foreground, install | |
494 | inferior's terminal modes. */ | |
495 | (*current_target.to_terminal_inferior) (); | |
496 | } | |
136d6dae | 497 | |
c906108c | 498 | static int |
fba45db2 KB |
499 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
500 | struct target_ops *t) | |
c906108c | 501 | { |
c378eb4e MS |
502 | errno = EIO; /* Can't read/write this location. */ |
503 | return 0; /* No bytes handled. */ | |
c906108c SS |
504 | } |
505 | ||
506 | static void | |
fba45db2 | 507 | tcomplain (void) |
c906108c | 508 | { |
8a3fe4f8 | 509 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
510 | current_target.to_shortname); |
511 | } | |
512 | ||
513 | void | |
fba45db2 | 514 | noprocess (void) |
c906108c | 515 | { |
8a3fe4f8 | 516 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
517 | } |
518 | ||
c906108c | 519 | static void |
503ebb2c | 520 | default_terminal_info (const char *args, int from_tty) |
c906108c | 521 | { |
a3f17187 | 522 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
523 | } |
524 | ||
0ef643c8 JB |
525 | /* A default implementation for the to_get_ada_task_ptid target method. |
526 | ||
527 | This function builds the PTID by using both LWP and TID as part of | |
528 | the PTID lwp and tid elements. The pid used is the pid of the | |
529 | inferior_ptid. */ | |
530 | ||
2c0b251b | 531 | static ptid_t |
0ef643c8 JB |
532 | default_get_ada_task_ptid (long lwp, long tid) |
533 | { | |
534 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
535 | } | |
536 | ||
32231432 PA |
537 | static enum exec_direction_kind |
538 | default_execution_direction (void) | |
539 | { | |
540 | if (!target_can_execute_reverse) | |
541 | return EXEC_FORWARD; | |
542 | else if (!target_can_async_p ()) | |
543 | return EXEC_FORWARD; | |
544 | else | |
545 | gdb_assert_not_reached ("\ | |
546 | to_execution_direction must be implemented for reverse async"); | |
547 | } | |
548 | ||
7998dfc3 AC |
549 | /* Go through the target stack from top to bottom, copying over zero |
550 | entries in current_target, then filling in still empty entries. In | |
551 | effect, we are doing class inheritance through the pushed target | |
552 | vectors. | |
553 | ||
554 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
555 | is currently implemented, is that it discards any knowledge of | |
556 | which target an inherited method originally belonged to. | |
557 | Consequently, new new target methods should instead explicitly and | |
558 | locally search the target stack for the target that can handle the | |
559 | request. */ | |
c906108c SS |
560 | |
561 | static void | |
7998dfc3 | 562 | update_current_target (void) |
c906108c | 563 | { |
7998dfc3 AC |
564 | struct target_ops *t; |
565 | ||
08d8bcd7 | 566 | /* First, reset current's contents. */ |
7998dfc3 AC |
567 | memset (¤t_target, 0, sizeof (current_target)); |
568 | ||
1101cb7b TT |
569 | /* Install the delegators. */ |
570 | install_delegators (¤t_target); | |
571 | ||
7998dfc3 AC |
572 | #define INHERIT(FIELD, TARGET) \ |
573 | if (!current_target.FIELD) \ | |
574 | current_target.FIELD = (TARGET)->FIELD | |
575 | ||
576 | for (t = target_stack; t; t = t->beneath) | |
577 | { | |
578 | INHERIT (to_shortname, t); | |
579 | INHERIT (to_longname, t); | |
580 | INHERIT (to_doc, t); | |
b52323fa UW |
581 | /* Do not inherit to_open. */ |
582 | /* Do not inherit to_close. */ | |
136d6dae | 583 | /* Do not inherit to_attach. */ |
7998dfc3 | 584 | INHERIT (to_post_attach, t); |
dc177b7a | 585 | INHERIT (to_attach_no_wait, t); |
136d6dae | 586 | /* Do not inherit to_detach. */ |
597320e7 | 587 | /* Do not inherit to_disconnect. */ |
28439f5e | 588 | /* Do not inherit to_resume. */ |
117de6a9 | 589 | /* Do not inherit to_wait. */ |
28439f5e PA |
590 | /* Do not inherit to_fetch_registers. */ |
591 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 592 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 593 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 | 594 | INHERIT (to_files_info, t); |
3db08215 MM |
595 | /* Do not inherit to_insert_breakpoint. */ |
596 | /* Do not inherit to_remove_breakpoint. */ | |
7998dfc3 AC |
597 | INHERIT (to_can_use_hw_breakpoint, t); |
598 | INHERIT (to_insert_hw_breakpoint, t); | |
599 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 600 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
601 | INHERIT (to_insert_watchpoint, t); |
602 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
603 | /* Do not inherit to_insert_mask_watchpoint. */ |
604 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 605 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 606 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 607 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 608 | /* Do not inherit to_stopped_by_watchpoint. */ |
5009afc5 | 609 | INHERIT (to_watchpoint_addr_within_range, t); |
e0d24f8d | 610 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 611 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 612 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
613 | INHERIT (to_terminal_init, t); |
614 | INHERIT (to_terminal_inferior, t); | |
615 | INHERIT (to_terminal_ours_for_output, t); | |
616 | INHERIT (to_terminal_ours, t); | |
617 | INHERIT (to_terminal_save_ours, t); | |
618 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 619 | /* Do not inherit to_kill. */ |
7998dfc3 | 620 | INHERIT (to_load, t); |
136d6dae | 621 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 622 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
623 | INHERIT (to_insert_fork_catchpoint, t); |
624 | INHERIT (to_remove_fork_catchpoint, t); | |
625 | INHERIT (to_insert_vfork_catchpoint, t); | |
626 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 627 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
628 | INHERIT (to_insert_exec_catchpoint, t); |
629 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 630 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 631 | INHERIT (to_has_exited, t); |
82892036 | 632 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 633 | INHERIT (to_can_run, t); |
2455069d | 634 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 635 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
636 | /* Do not inherit to_thread_alive. */ |
637 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 638 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 639 | INHERIT (to_extra_thread_info, t); |
4694da01 | 640 | INHERIT (to_thread_name, t); |
7998dfc3 | 641 | INHERIT (to_stop, t); |
4b8a223f | 642 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 643 | INHERIT (to_rcmd, t); |
7998dfc3 | 644 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 645 | INHERIT (to_log_command, t); |
7998dfc3 | 646 | INHERIT (to_stratum, t); |
c378eb4e MS |
647 | /* Do not inherit to_has_all_memory. */ |
648 | /* Do not inherit to_has_memory. */ | |
649 | /* Do not inherit to_has_stack. */ | |
650 | /* Do not inherit to_has_registers. */ | |
651 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 652 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
653 | /* Do not inherit to_can_async_p. */ |
654 | /* Do not inherit to_is_async_p. */ | |
655 | /* Do not inherit to_async. */ | |
7998dfc3 AC |
656 | INHERIT (to_find_memory_regions, t); |
657 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
658 | INHERIT (to_get_bookmark, t); |
659 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 660 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 661 | INHERIT (to_can_execute_reverse, t); |
32231432 | 662 | INHERIT (to_execution_direction, t); |
c2250ad1 | 663 | INHERIT (to_thread_architecture, t); |
424163ea | 664 | /* Do not inherit to_read_description. */ |
0ef643c8 | 665 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 666 | /* Do not inherit to_search_memory. */ |
8a305172 | 667 | INHERIT (to_supports_multi_process, t); |
d248b706 | 668 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 669 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
670 | INHERIT (to_trace_init, t); |
671 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 672 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 673 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
674 | INHERIT (to_enable_tracepoint, t); |
675 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
676 | INHERIT (to_trace_set_readonly_regions, t); |
677 | INHERIT (to_trace_start, t); | |
678 | INHERIT (to_get_trace_status, t); | |
f196051f | 679 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
680 | INHERIT (to_trace_stop, t); |
681 | INHERIT (to_trace_find, t); | |
682 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
683 | INHERIT (to_save_trace_data, t); |
684 | INHERIT (to_upload_tracepoints, t); | |
685 | INHERIT (to_upload_trace_state_variables, t); | |
686 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 687 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 688 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 689 | INHERIT (to_set_circular_trace_buffer, t); |
f6f899bf | 690 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 691 | INHERIT (to_set_trace_notes, t); |
711e434b | 692 | INHERIT (to_get_tib_address, t); |
d914c394 | 693 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
694 | INHERIT (to_static_tracepoint_marker_at, t); |
695 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 696 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
697 | INHERIT (to_use_agent, t); |
698 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 699 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 700 | INHERIT (to_magic, t); |
b775012e | 701 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 702 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 703 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
704 | /* Do not inherit to_flash_erase. */ |
705 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
706 | } |
707 | #undef INHERIT | |
708 | ||
709 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
710 | it. Some entries are defaulted to a method that print an error, |
711 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
712 | |
713 | #define de_fault(field, value) \ | |
7998dfc3 AC |
714 | if (!current_target.field) \ |
715 | current_target.field = value | |
0d06e24b | 716 | |
2bc416ba DJ |
717 | de_fault (to_open, |
718 | (void (*) (char *, int)) | |
0d06e24b | 719 | tcomplain); |
2bc416ba | 720 | de_fault (to_close, |
460014f5 | 721 | (void (*) (void)) |
0d06e24b | 722 | target_ignore); |
2bc416ba DJ |
723 | de_fault (to_post_attach, |
724 | (void (*) (int)) | |
0d06e24b | 725 | target_ignore); |
2bc416ba | 726 | de_fault (to_prepare_to_store, |
f32dbf8c | 727 | (void (*) (struct target_ops *, struct regcache *)) |
0d06e24b | 728 | noprocess); |
2bc416ba | 729 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
730 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
731 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 732 | nomemory); |
2bc416ba DJ |
733 | de_fault (to_files_info, |
734 | (void (*) (struct target_ops *)) | |
0d06e24b | 735 | target_ignore); |
ccaa32c7 GS |
736 | de_fault (to_can_use_hw_breakpoint, |
737 | (int (*) (int, int, int)) | |
738 | return_zero); | |
739 | de_fault (to_insert_hw_breakpoint, | |
a6d9a66e | 740 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
741 | return_minus_one); |
742 | de_fault (to_remove_hw_breakpoint, | |
a6d9a66e | 743 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
744 | return_minus_one); |
745 | de_fault (to_insert_watchpoint, | |
0cf6dd15 | 746 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
747 | return_minus_one); |
748 | de_fault (to_remove_watchpoint, | |
0cf6dd15 | 749 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 | 750 | return_minus_one); |
5009afc5 AS |
751 | de_fault (to_watchpoint_addr_within_range, |
752 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
753 | de_fault (to_region_ok_for_hw_watchpoint, |
754 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 TJB |
755 | de_fault (to_can_accel_watchpoint_condition, |
756 | (int (*) (CORE_ADDR, int, int, struct expression *)) | |
757 | return_zero); | |
2bc416ba DJ |
758 | de_fault (to_terminal_init, |
759 | (void (*) (void)) | |
0d06e24b | 760 | target_ignore); |
2bc416ba DJ |
761 | de_fault (to_terminal_inferior, |
762 | (void (*) (void)) | |
0d06e24b | 763 | target_ignore); |
2bc416ba DJ |
764 | de_fault (to_terminal_ours_for_output, |
765 | (void (*) (void)) | |
0d06e24b | 766 | target_ignore); |
2bc416ba DJ |
767 | de_fault (to_terminal_ours, |
768 | (void (*) (void)) | |
0d06e24b | 769 | target_ignore); |
2bc416ba DJ |
770 | de_fault (to_terminal_save_ours, |
771 | (void (*) (void)) | |
a790ad35 | 772 | target_ignore); |
2bc416ba | 773 | de_fault (to_terminal_info, |
0d06e24b | 774 | default_terminal_info); |
2bc416ba DJ |
775 | de_fault (to_load, |
776 | (void (*) (char *, int)) | |
0d06e24b | 777 | tcomplain); |
2bc416ba DJ |
778 | de_fault (to_post_startup_inferior, |
779 | (void (*) (ptid_t)) | |
0d06e24b | 780 | target_ignore); |
2bc416ba | 781 | de_fault (to_insert_fork_catchpoint, |
77b06cd7 TJB |
782 | (int (*) (int)) |
783 | return_one); | |
2bc416ba DJ |
784 | de_fault (to_remove_fork_catchpoint, |
785 | (int (*) (int)) | |
77b06cd7 | 786 | return_one); |
2bc416ba | 787 | de_fault (to_insert_vfork_catchpoint, |
77b06cd7 TJB |
788 | (int (*) (int)) |
789 | return_one); | |
2bc416ba DJ |
790 | de_fault (to_remove_vfork_catchpoint, |
791 | (int (*) (int)) | |
77b06cd7 | 792 | return_one); |
2bc416ba | 793 | de_fault (to_insert_exec_catchpoint, |
77b06cd7 TJB |
794 | (int (*) (int)) |
795 | return_one); | |
2bc416ba DJ |
796 | de_fault (to_remove_exec_catchpoint, |
797 | (int (*) (int)) | |
77b06cd7 | 798 | return_one); |
a96d9b2e SDJ |
799 | de_fault (to_set_syscall_catchpoint, |
800 | (int (*) (int, int, int, int, int *)) | |
77b06cd7 | 801 | return_one); |
2bc416ba DJ |
802 | de_fault (to_has_exited, |
803 | (int (*) (int, int, int *)) | |
0d06e24b | 804 | return_zero); |
2bc416ba | 805 | de_fault (to_can_run, |
0d06e24b | 806 | return_zero); |
2bc416ba DJ |
807 | de_fault (to_extra_thread_info, |
808 | (char *(*) (struct thread_info *)) | |
1b67eb02 | 809 | return_null); |
4694da01 TT |
810 | de_fault (to_thread_name, |
811 | (char *(*) (struct thread_info *)) | |
1b67eb02 | 812 | return_null); |
2bc416ba | 813 | de_fault (to_stop, |
94cc34af | 814 | (void (*) (ptid_t)) |
0d06e24b | 815 | target_ignore); |
2bc416ba DJ |
816 | de_fault (to_rcmd, |
817 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 818 | tcomplain); |
2bc416ba DJ |
819 | de_fault (to_pid_to_exec_file, |
820 | (char *(*) (int)) | |
1b67eb02 | 821 | return_null); |
c2250ad1 UW |
822 | de_fault (to_thread_architecture, |
823 | default_thread_architecture); | |
424163ea | 824 | current_target.to_read_description = NULL; |
0ef643c8 JB |
825 | de_fault (to_get_ada_task_ptid, |
826 | (ptid_t (*) (long, long)) | |
827 | default_get_ada_task_ptid); | |
8a305172 PA |
828 | de_fault (to_supports_multi_process, |
829 | (int (*) (void)) | |
830 | return_zero); | |
d248b706 KY |
831 | de_fault (to_supports_enable_disable_tracepoint, |
832 | (int (*) (void)) | |
833 | return_zero); | |
3065dfb6 SS |
834 | de_fault (to_supports_string_tracing, |
835 | (int (*) (void)) | |
836 | return_zero); | |
35b1e5cc SS |
837 | de_fault (to_trace_init, |
838 | (void (*) (void)) | |
839 | tcomplain); | |
840 | de_fault (to_download_tracepoint, | |
e8ba3115 | 841 | (void (*) (struct bp_location *)) |
35b1e5cc | 842 | tcomplain); |
1e4d1764 YQ |
843 | de_fault (to_can_download_tracepoint, |
844 | (int (*) (void)) | |
845 | return_zero); | |
35b1e5cc SS |
846 | de_fault (to_download_trace_state_variable, |
847 | (void (*) (struct trace_state_variable *)) | |
848 | tcomplain); | |
d248b706 KY |
849 | de_fault (to_enable_tracepoint, |
850 | (void (*) (struct bp_location *)) | |
851 | tcomplain); | |
852 | de_fault (to_disable_tracepoint, | |
853 | (void (*) (struct bp_location *)) | |
854 | tcomplain); | |
35b1e5cc SS |
855 | de_fault (to_trace_set_readonly_regions, |
856 | (void (*) (void)) | |
857 | tcomplain); | |
858 | de_fault (to_trace_start, | |
859 | (void (*) (void)) | |
860 | tcomplain); | |
861 | de_fault (to_get_trace_status, | |
00bf0b85 | 862 | (int (*) (struct trace_status *)) |
35b1e5cc | 863 | return_minus_one); |
f196051f SS |
864 | de_fault (to_get_tracepoint_status, |
865 | (void (*) (struct breakpoint *, struct uploaded_tp *)) | |
866 | tcomplain); | |
35b1e5cc SS |
867 | de_fault (to_trace_stop, |
868 | (void (*) (void)) | |
869 | tcomplain); | |
870 | de_fault (to_trace_find, | |
cc5925ad | 871 | (int (*) (enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) |
4136fdd2 | 872 | return_minus_one); |
35b1e5cc SS |
873 | de_fault (to_get_trace_state_variable_value, |
874 | (int (*) (int, LONGEST *)) | |
875 | return_zero); | |
00bf0b85 | 876 | de_fault (to_save_trace_data, |
011aacb0 | 877 | (int (*) (const char *)) |
00bf0b85 SS |
878 | tcomplain); |
879 | de_fault (to_upload_tracepoints, | |
880 | (int (*) (struct uploaded_tp **)) | |
881 | return_zero); | |
882 | de_fault (to_upload_trace_state_variables, | |
883 | (int (*) (struct uploaded_tsv **)) | |
884 | return_zero); | |
885 | de_fault (to_get_raw_trace_data, | |
886 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
887 | tcomplain); | |
405f8e94 SS |
888 | de_fault (to_get_min_fast_tracepoint_insn_len, |
889 | (int (*) (void)) | |
890 | return_minus_one); | |
35b1e5cc SS |
891 | de_fault (to_set_disconnected_tracing, |
892 | (void (*) (int)) | |
4daf5ac0 SS |
893 | target_ignore); |
894 | de_fault (to_set_circular_trace_buffer, | |
895 | (void (*) (int)) | |
896 | target_ignore); | |
f6f899bf HAQ |
897 | de_fault (to_set_trace_buffer_size, |
898 | (void (*) (LONGEST)) | |
899 | target_ignore); | |
f196051f | 900 | de_fault (to_set_trace_notes, |
ca623f82 | 901 | (int (*) (const char *, const char *, const char *)) |
f196051f | 902 | return_zero); |
711e434b PM |
903 | de_fault (to_get_tib_address, |
904 | (int (*) (ptid_t, CORE_ADDR *)) | |
905 | tcomplain); | |
d914c394 SS |
906 | de_fault (to_set_permissions, |
907 | (void (*) (void)) | |
908 | target_ignore); | |
0fb4aa4b PA |
909 | de_fault (to_static_tracepoint_marker_at, |
910 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
911 | return_zero); | |
912 | de_fault (to_static_tracepoint_markers_by_strid, | |
913 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
914 | tcomplain); | |
b3b9301e PA |
915 | de_fault (to_traceframe_info, |
916 | (struct traceframe_info * (*) (void)) | |
1b67eb02 | 917 | return_null); |
b775012e LM |
918 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
919 | (int (*) (void)) | |
920 | return_zero); | |
d3ce09f5 SS |
921 | de_fault (to_can_run_breakpoint_commands, |
922 | (int (*) (void)) | |
923 | return_zero); | |
d1feda86 YQ |
924 | de_fault (to_use_agent, |
925 | (int (*) (int)) | |
926 | tcomplain); | |
927 | de_fault (to_can_use_agent, | |
928 | (int (*) (void)) | |
929 | return_zero); | |
ced63ec0 GB |
930 | de_fault (to_augmented_libraries_svr4_read, |
931 | (int (*) (void)) | |
932 | return_zero); | |
32231432 PA |
933 | de_fault (to_execution_direction, default_execution_direction); |
934 | ||
c906108c | 935 | #undef de_fault |
c906108c | 936 | |
7998dfc3 AC |
937 | /* Finally, position the target-stack beneath the squashed |
938 | "current_target". That way code looking for a non-inherited | |
939 | target method can quickly and simply find it. */ | |
940 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
941 | |
942 | if (targetdebug) | |
943 | setup_target_debug (); | |
c906108c SS |
944 | } |
945 | ||
946 | /* Push a new target type into the stack of the existing target accessors, | |
947 | possibly superseding some of the existing accessors. | |
948 | ||
c906108c SS |
949 | Rather than allow an empty stack, we always have the dummy target at |
950 | the bottom stratum, so we can call the function vectors without | |
951 | checking them. */ | |
952 | ||
b26a4dcb | 953 | void |
fba45db2 | 954 | push_target (struct target_ops *t) |
c906108c | 955 | { |
258b763a | 956 | struct target_ops **cur; |
c906108c SS |
957 | |
958 | /* Check magic number. If wrong, it probably means someone changed | |
959 | the struct definition, but not all the places that initialize one. */ | |
960 | if (t->to_magic != OPS_MAGIC) | |
961 | { | |
c5aa993b JM |
962 | fprintf_unfiltered (gdb_stderr, |
963 | "Magic number of %s target struct wrong\n", | |
964 | t->to_shortname); | |
3e43a32a MS |
965 | internal_error (__FILE__, __LINE__, |
966 | _("failed internal consistency check")); | |
c906108c SS |
967 | } |
968 | ||
258b763a AC |
969 | /* Find the proper stratum to install this target in. */ |
970 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 971 | { |
258b763a | 972 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
973 | break; |
974 | } | |
975 | ||
258b763a | 976 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 977 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
978 | targets to CUR, and not just those at this stratum level. */ |
979 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
980 | { | |
981 | /* There's already something at this stratum level. Close it, | |
982 | and un-hook it from the stack. */ | |
983 | struct target_ops *tmp = (*cur); | |
5d502164 | 984 | |
258b763a AC |
985 | (*cur) = (*cur)->beneath; |
986 | tmp->beneath = NULL; | |
460014f5 | 987 | target_close (tmp); |
258b763a | 988 | } |
c906108c SS |
989 | |
990 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
991 | t->beneath = (*cur); |
992 | (*cur) = t; | |
c906108c SS |
993 | |
994 | update_current_target (); | |
c906108c SS |
995 | } |
996 | ||
2bc416ba | 997 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
998 | Return how many times it was removed (0 or 1). */ |
999 | ||
1000 | int | |
fba45db2 | 1001 | unpush_target (struct target_ops *t) |
c906108c | 1002 | { |
258b763a AC |
1003 | struct target_ops **cur; |
1004 | struct target_ops *tmp; | |
c906108c | 1005 | |
c8d104ad PA |
1006 | if (t->to_stratum == dummy_stratum) |
1007 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1008 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1009 | |
c906108c | 1010 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1011 | can only occur once in the target stack. */ |
c906108c | 1012 | |
258b763a AC |
1013 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1014 | { | |
1015 | if ((*cur) == t) | |
1016 | break; | |
1017 | } | |
c906108c | 1018 | |
305436e0 PA |
1019 | /* If we don't find target_ops, quit. Only open targets should be |
1020 | closed. */ | |
258b763a | 1021 | if ((*cur) == NULL) |
305436e0 | 1022 | return 0; |
5269965e | 1023 | |
c378eb4e | 1024 | /* Unchain the target. */ |
258b763a AC |
1025 | tmp = (*cur); |
1026 | (*cur) = (*cur)->beneath; | |
1027 | tmp->beneath = NULL; | |
c906108c SS |
1028 | |
1029 | update_current_target (); | |
c906108c | 1030 | |
305436e0 PA |
1031 | /* Finally close the target. Note we do this after unchaining, so |
1032 | any target method calls from within the target_close | |
1033 | implementation don't end up in T anymore. */ | |
460014f5 | 1034 | target_close (t); |
305436e0 | 1035 | |
c906108c SS |
1036 | return 1; |
1037 | } | |
1038 | ||
aa76d38d | 1039 | void |
460014f5 | 1040 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1041 | { |
87ab71f0 | 1042 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1043 | { |
aa76d38d PA |
1044 | if (!unpush_target (target_stack)) |
1045 | { | |
1046 | fprintf_unfiltered (gdb_stderr, | |
1047 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1048 | target_stack->to_shortname); |
aa76d38d PA |
1049 | internal_error (__FILE__, __LINE__, |
1050 | _("failed internal consistency check")); | |
1051 | break; | |
1052 | } | |
1053 | } | |
1054 | } | |
1055 | ||
87ab71f0 | 1056 | void |
460014f5 | 1057 | pop_all_targets (void) |
87ab71f0 | 1058 | { |
460014f5 | 1059 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1060 | } |
1061 | ||
c0edd9ed JK |
1062 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1063 | ||
1064 | int | |
1065 | target_is_pushed (struct target_ops *t) | |
1066 | { | |
1067 | struct target_ops **cur; | |
1068 | ||
1069 | /* Check magic number. If wrong, it probably means someone changed | |
1070 | the struct definition, but not all the places that initialize one. */ | |
1071 | if (t->to_magic != OPS_MAGIC) | |
1072 | { | |
1073 | fprintf_unfiltered (gdb_stderr, | |
1074 | "Magic number of %s target struct wrong\n", | |
1075 | t->to_shortname); | |
3e43a32a MS |
1076 | internal_error (__FILE__, __LINE__, |
1077 | _("failed internal consistency check")); | |
c0edd9ed JK |
1078 | } |
1079 | ||
1080 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1081 | if (*cur == t) | |
1082 | return 1; | |
1083 | ||
1084 | return 0; | |
1085 | } | |
1086 | ||
72f5cf0e | 1087 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1088 | current thread's thread-local storage with offset OFFSET. */ |
1089 | CORE_ADDR | |
1090 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1091 | { | |
1092 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1093 | struct target_ops *target; |
1094 | ||
1095 | for (target = current_target.beneath; | |
1096 | target != NULL; | |
1097 | target = target->beneath) | |
1098 | { | |
1099 | if (target->to_get_thread_local_address != NULL) | |
1100 | break; | |
1101 | } | |
9e35dae4 | 1102 | |
117de6a9 | 1103 | if (target != NULL |
f5656ead | 1104 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1105 | { |
1106 | ptid_t ptid = inferior_ptid; | |
1107 | volatile struct gdb_exception ex; | |
1108 | ||
1109 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1110 | { | |
1111 | CORE_ADDR lm_addr; | |
1112 | ||
1113 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1114 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1115 | objfile); |
1116 | /* If it's 0, throw the appropriate exception. */ | |
1117 | if (lm_addr == 0) | |
1118 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1119 | _("TLS load module not found")); | |
1120 | ||
3e43a32a MS |
1121 | addr = target->to_get_thread_local_address (target, ptid, |
1122 | lm_addr, offset); | |
9e35dae4 DJ |
1123 | } |
1124 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1125 | throw the error to some higher catcher. */ | |
1126 | if (ex.reason < 0) | |
1127 | { | |
1128 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1129 | ||
1130 | switch (ex.error) | |
1131 | { | |
1132 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1133 | error (_("Cannot find thread-local variables " |
1134 | "in this thread library.")); | |
9e35dae4 DJ |
1135 | break; |
1136 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1137 | if (objfile_is_library) | |
1138 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 1139 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1140 | else |
1141 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 1142 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1143 | break; |
1144 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1145 | if (objfile_is_library) | |
1146 | error (_("The inferior has not yet allocated storage for" | |
1147 | " thread-local variables in\n" | |
1148 | "the shared library `%s'\n" | |
1149 | "for %s"), | |
4262abfb | 1150 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1151 | else |
1152 | error (_("The inferior has not yet allocated storage for" | |
1153 | " thread-local variables in\n" | |
1154 | "the executable `%s'\n" | |
1155 | "for %s"), | |
4262abfb | 1156 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1157 | break; |
1158 | case TLS_GENERIC_ERROR: | |
1159 | if (objfile_is_library) | |
1160 | error (_("Cannot find thread-local storage for %s, " | |
1161 | "shared library %s:\n%s"), | |
1162 | target_pid_to_str (ptid), | |
4262abfb | 1163 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1164 | else |
1165 | error (_("Cannot find thread-local storage for %s, " | |
1166 | "executable file %s:\n%s"), | |
1167 | target_pid_to_str (ptid), | |
4262abfb | 1168 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1169 | break; |
1170 | default: | |
1171 | throw_exception (ex); | |
1172 | break; | |
1173 | } | |
1174 | } | |
1175 | } | |
1176 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1177 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1178 | else | |
1179 | error (_("Cannot find thread-local variables on this target")); | |
1180 | ||
1181 | return addr; | |
1182 | } | |
1183 | ||
6be7b56e | 1184 | const char * |
9b409511 | 1185 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1186 | { |
1187 | #define CASE(X) case X: return #X | |
1188 | switch (err) | |
1189 | { | |
1190 | CASE(TARGET_XFER_E_IO); | |
1191 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1192 | default: | |
1193 | return "<unknown>"; | |
1194 | } | |
1195 | #undef CASE | |
1196 | }; | |
1197 | ||
1198 | ||
c906108c SS |
1199 | #undef MIN |
1200 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1201 | ||
1202 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1203 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1204 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1205 | is responsible for freeing it. Return the number of bytes successfully | |
1206 | read. */ | |
1207 | ||
1208 | int | |
fba45db2 | 1209 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1210 | { |
c2e8b827 | 1211 | int tlen, offset, i; |
1b0ba102 | 1212 | gdb_byte buf[4]; |
c906108c SS |
1213 | int errcode = 0; |
1214 | char *buffer; | |
1215 | int buffer_allocated; | |
1216 | char *bufptr; | |
1217 | unsigned int nbytes_read = 0; | |
1218 | ||
6217bf3e MS |
1219 | gdb_assert (string); |
1220 | ||
c906108c SS |
1221 | /* Small for testing. */ |
1222 | buffer_allocated = 4; | |
1223 | buffer = xmalloc (buffer_allocated); | |
1224 | bufptr = buffer; | |
1225 | ||
c906108c SS |
1226 | while (len > 0) |
1227 | { | |
1228 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1229 | offset = memaddr & 3; | |
1230 | ||
1b0ba102 | 1231 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1232 | if (errcode != 0) |
1233 | { | |
1234 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1235 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1236 | a single byte. */ |
1237 | tlen = 1; | |
1238 | offset = 0; | |
b8eb5af0 | 1239 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1240 | if (errcode != 0) |
1241 | goto done; | |
1242 | } | |
1243 | ||
1244 | if (bufptr - buffer + tlen > buffer_allocated) | |
1245 | { | |
1246 | unsigned int bytes; | |
5d502164 | 1247 | |
c906108c SS |
1248 | bytes = bufptr - buffer; |
1249 | buffer_allocated *= 2; | |
1250 | buffer = xrealloc (buffer, buffer_allocated); | |
1251 | bufptr = buffer + bytes; | |
1252 | } | |
1253 | ||
1254 | for (i = 0; i < tlen; i++) | |
1255 | { | |
1256 | *bufptr++ = buf[i + offset]; | |
1257 | if (buf[i + offset] == '\000') | |
1258 | { | |
1259 | nbytes_read += i + 1; | |
1260 | goto done; | |
1261 | } | |
1262 | } | |
1263 | ||
1264 | memaddr += tlen; | |
1265 | len -= tlen; | |
1266 | nbytes_read += tlen; | |
1267 | } | |
c5aa993b | 1268 | done: |
6217bf3e | 1269 | *string = buffer; |
c906108c SS |
1270 | if (errnop != NULL) |
1271 | *errnop = errcode; | |
c906108c SS |
1272 | return nbytes_read; |
1273 | } | |
1274 | ||
07b82ea5 PA |
1275 | struct target_section_table * |
1276 | target_get_section_table (struct target_ops *target) | |
1277 | { | |
1278 | struct target_ops *t; | |
1279 | ||
1280 | if (targetdebug) | |
1281 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1282 | ||
1283 | for (t = target; t != NULL; t = t->beneath) | |
1284 | if (t->to_get_section_table != NULL) | |
1285 | return (*t->to_get_section_table) (t); | |
1286 | ||
1287 | return NULL; | |
1288 | } | |
1289 | ||
8db32d44 | 1290 | /* Find a section containing ADDR. */ |
07b82ea5 | 1291 | |
0542c86d | 1292 | struct target_section * |
8db32d44 AC |
1293 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1294 | { | |
07b82ea5 | 1295 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1296 | struct target_section *secp; |
07b82ea5 PA |
1297 | |
1298 | if (table == NULL) | |
1299 | return NULL; | |
1300 | ||
1301 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1302 | { |
1303 | if (addr >= secp->addr && addr < secp->endaddr) | |
1304 | return secp; | |
1305 | } | |
1306 | return NULL; | |
1307 | } | |
1308 | ||
e6e4e701 PA |
1309 | /* Read memory from the live target, even if currently inspecting a |
1310 | traceframe. The return is the same as that of target_read. */ | |
1311 | ||
9b409511 | 1312 | static enum target_xfer_status |
e6e4e701 | 1313 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1314 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1315 | ULONGEST *xfered_len) | |
e6e4e701 | 1316 | { |
9b409511 | 1317 | enum target_xfer_status ret; |
e6e4e701 PA |
1318 | struct cleanup *cleanup; |
1319 | ||
1320 | /* Switch momentarily out of tfind mode so to access live memory. | |
1321 | Note that this must not clear global state, such as the frame | |
1322 | cache, which must still remain valid for the previous traceframe. | |
1323 | We may be _building_ the frame cache at this point. */ | |
1324 | cleanup = make_cleanup_restore_traceframe_number (); | |
1325 | set_traceframe_number (-1); | |
1326 | ||
9b409511 YQ |
1327 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1328 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1329 | |
1330 | do_cleanups (cleanup); | |
1331 | return ret; | |
1332 | } | |
1333 | ||
1334 | /* Using the set of read-only target sections of OPS, read live | |
1335 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1336 | top-most target again. |
1337 | ||
1338 | For interface/parameters/return description see target.h, | |
1339 | to_xfer_partial. */ | |
e6e4e701 | 1340 | |
9b409511 | 1341 | static enum target_xfer_status |
e6e4e701 PA |
1342 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1343 | enum target_object object, | |
1344 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1345 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1346 | { |
1347 | struct target_section *secp; | |
1348 | struct target_section_table *table; | |
1349 | ||
1350 | secp = target_section_by_addr (ops, memaddr); | |
1351 | if (secp != NULL | |
2b2848e2 DE |
1352 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1353 | secp->the_bfd_section) | |
e6e4e701 PA |
1354 | & SEC_READONLY)) |
1355 | { | |
1356 | struct target_section *p; | |
1357 | ULONGEST memend = memaddr + len; | |
1358 | ||
1359 | table = target_get_section_table (ops); | |
1360 | ||
1361 | for (p = table->sections; p < table->sections_end; p++) | |
1362 | { | |
1363 | if (memaddr >= p->addr) | |
1364 | { | |
1365 | if (memend <= p->endaddr) | |
1366 | { | |
1367 | /* Entire transfer is within this section. */ | |
1368 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1369 | readbuf, len, xfered_len); |
e6e4e701 PA |
1370 | } |
1371 | else if (memaddr >= p->endaddr) | |
1372 | { | |
1373 | /* This section ends before the transfer starts. */ | |
1374 | continue; | |
1375 | } | |
1376 | else | |
1377 | { | |
1378 | /* This section overlaps the transfer. Just do half. */ | |
1379 | len = p->endaddr - memaddr; | |
1380 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1381 | readbuf, len, xfered_len); |
e6e4e701 PA |
1382 | } |
1383 | } | |
1384 | } | |
1385 | } | |
1386 | ||
9b409511 | 1387 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1388 | } |
1389 | ||
9f713294 YQ |
1390 | /* Read memory from more than one valid target. A core file, for |
1391 | instance, could have some of memory but delegate other bits to | |
1392 | the target below it. So, we must manually try all targets. */ | |
1393 | ||
9b409511 | 1394 | static enum target_xfer_status |
17fde6d0 | 1395 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1396 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1397 | ULONGEST *xfered_len) | |
9f713294 | 1398 | { |
9b409511 | 1399 | enum target_xfer_status res; |
9f713294 YQ |
1400 | |
1401 | do | |
1402 | { | |
1403 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1404 | readbuf, writebuf, memaddr, len, |
1405 | xfered_len); | |
1406 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1407 | break; |
1408 | ||
633785ff MM |
1409 | /* Stop if the target reports that the memory is not available. */ |
1410 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1411 | break; | |
1412 | ||
9f713294 YQ |
1413 | /* We want to continue past core files to executables, but not |
1414 | past a running target's memory. */ | |
1415 | if (ops->to_has_all_memory (ops)) | |
1416 | break; | |
1417 | ||
1418 | ops = ops->beneath; | |
1419 | } | |
1420 | while (ops != NULL); | |
1421 | ||
1422 | return res; | |
1423 | } | |
1424 | ||
7f79c47e DE |
1425 | /* Perform a partial memory transfer. |
1426 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1427 | |
9b409511 | 1428 | static enum target_xfer_status |
f0ba3972 | 1429 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1430 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1431 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1432 | { |
9b409511 | 1433 | enum target_xfer_status res; |
cf7a04e8 DJ |
1434 | int reg_len; |
1435 | struct mem_region *region; | |
4e5d721f | 1436 | struct inferior *inf; |
cf7a04e8 | 1437 | |
07b82ea5 PA |
1438 | /* For accesses to unmapped overlay sections, read directly from |
1439 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1440 | if (readbuf != NULL && overlay_debugging) | |
1441 | { | |
1442 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1443 | |
07b82ea5 PA |
1444 | if (pc_in_unmapped_range (memaddr, section)) |
1445 | { | |
1446 | struct target_section_table *table | |
1447 | = target_get_section_table (ops); | |
1448 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1449 | |
07b82ea5 PA |
1450 | memaddr = overlay_mapped_address (memaddr, section); |
1451 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1452 | memaddr, len, xfered_len, |
07b82ea5 PA |
1453 | table->sections, |
1454 | table->sections_end, | |
1455 | section_name); | |
1456 | } | |
1457 | } | |
1458 | ||
1459 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1460 | if (readbuf != NULL && trust_readonly) |
1461 | { | |
0542c86d | 1462 | struct target_section *secp; |
07b82ea5 | 1463 | struct target_section_table *table; |
cf7a04e8 DJ |
1464 | |
1465 | secp = target_section_by_addr (ops, memaddr); | |
1466 | if (secp != NULL | |
2b2848e2 DE |
1467 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1468 | secp->the_bfd_section) | |
cf7a04e8 | 1469 | & SEC_READONLY)) |
07b82ea5 PA |
1470 | { |
1471 | table = target_get_section_table (ops); | |
1472 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1473 | memaddr, len, xfered_len, |
07b82ea5 PA |
1474 | table->sections, |
1475 | table->sections_end, | |
1476 | NULL); | |
1477 | } | |
98646950 UW |
1478 | } |
1479 | ||
e6e4e701 PA |
1480 | /* If reading unavailable memory in the context of traceframes, and |
1481 | this address falls within a read-only section, fallback to | |
1482 | reading from live memory. */ | |
1483 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1484 | { | |
1485 | VEC(mem_range_s) *available; | |
1486 | ||
1487 | /* If we fail to get the set of available memory, then the | |
1488 | target does not support querying traceframe info, and so we | |
1489 | attempt reading from the traceframe anyway (assuming the | |
1490 | target implements the old QTro packet then). */ | |
1491 | if (traceframe_available_memory (&available, memaddr, len)) | |
1492 | { | |
1493 | struct cleanup *old_chain; | |
1494 | ||
1495 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1496 | ||
1497 | if (VEC_empty (mem_range_s, available) | |
1498 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1499 | { | |
1500 | /* Don't read into the traceframe's available | |
1501 | memory. */ | |
1502 | if (!VEC_empty (mem_range_s, available)) | |
1503 | { | |
1504 | LONGEST oldlen = len; | |
1505 | ||
1506 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1507 | gdb_assert (len <= oldlen); | |
1508 | } | |
1509 | ||
1510 | do_cleanups (old_chain); | |
1511 | ||
1512 | /* This goes through the topmost target again. */ | |
1513 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1514 | readbuf, memaddr, |
1515 | len, xfered_len); | |
1516 | if (res == TARGET_XFER_OK) | |
1517 | return TARGET_XFER_OK; | |
1518 | else | |
1519 | { | |
1520 | /* No use trying further, we know some memory starting | |
1521 | at MEMADDR isn't available. */ | |
1522 | *xfered_len = len; | |
1523 | return TARGET_XFER_E_UNAVAILABLE; | |
1524 | } | |
e6e4e701 PA |
1525 | } |
1526 | ||
1527 | /* Don't try to read more than how much is available, in | |
1528 | case the target implements the deprecated QTro packet to | |
1529 | cater for older GDBs (the target's knowledge of read-only | |
1530 | sections may be outdated by now). */ | |
1531 | len = VEC_index (mem_range_s, available, 0)->length; | |
1532 | ||
1533 | do_cleanups (old_chain); | |
1534 | } | |
1535 | } | |
1536 | ||
cf7a04e8 DJ |
1537 | /* Try GDB's internal data cache. */ |
1538 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1539 | /* region->hi == 0 means there's no upper bound. */ |
1540 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1541 | reg_len = len; |
1542 | else | |
1543 | reg_len = region->hi - memaddr; | |
1544 | ||
1545 | switch (region->attrib.mode) | |
1546 | { | |
1547 | case MEM_RO: | |
1548 | if (writebuf != NULL) | |
2ed4b548 | 1549 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1550 | break; |
1551 | ||
1552 | case MEM_WO: | |
1553 | if (readbuf != NULL) | |
2ed4b548 | 1554 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1555 | break; |
a76d924d DJ |
1556 | |
1557 | case MEM_FLASH: | |
1558 | /* We only support writing to flash during "load" for now. */ | |
1559 | if (writebuf != NULL) | |
1560 | error (_("Writing to flash memory forbidden in this context")); | |
1561 | break; | |
4b5752d0 VP |
1562 | |
1563 | case MEM_NONE: | |
2ed4b548 | 1564 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1565 | } |
1566 | ||
6c95b8df PA |
1567 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1568 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1569 | else | |
1570 | inf = NULL; | |
4e5d721f DE |
1571 | |
1572 | if (inf != NULL | |
2f4d8875 PA |
1573 | /* The dcache reads whole cache lines; that doesn't play well |
1574 | with reading from a trace buffer, because reading outside of | |
1575 | the collected memory range fails. */ | |
1576 | && get_traceframe_number () == -1 | |
4e5d721f | 1577 | && (region->attrib.cache |
29453a14 YQ |
1578 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1579 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1580 | { |
2a2f9fe4 | 1581 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1582 | int l; |
2a2f9fe4 | 1583 | |
cf7a04e8 | 1584 | if (readbuf != NULL) |
9b409511 | 1585 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1586 | else |
1587 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1588 | correctness dcache_xfer_memory should take readbuf and | |
1589 | writebuf. */ | |
9b409511 | 1590 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1591 | reg_len, 1); |
9b409511 YQ |
1592 | if (l <= 0) |
1593 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1594 | else |
9b409511 YQ |
1595 | { |
1596 | *xfered_len = (ULONGEST) l; | |
1597 | return TARGET_XFER_OK; | |
1598 | } | |
cf7a04e8 DJ |
1599 | } |
1600 | ||
1601 | /* If none of those methods found the memory we wanted, fall back | |
1602 | to a target partial transfer. Normally a single call to | |
1603 | to_xfer_partial is enough; if it doesn't recognize an object | |
1604 | it will call the to_xfer_partial of the next target down. | |
1605 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1606 | object which can be read from more than one valid target. |
1607 | A core file, for instance, could have some of memory but | |
1608 | delegate other bits to the target below it. So, we must | |
1609 | manually try all targets. */ | |
1610 | ||
1611 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1612 | xfered_len); | |
cf7a04e8 | 1613 | |
41dcd03f DE |
1614 | /* Make sure the cache gets updated no matter what - if we are writing |
1615 | to the stack. Even if this write is not tagged as such, we still need | |
1616 | to update the cache. */ | |
1617 | ||
9b409511 | 1618 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1619 | && inf != NULL |
1620 | && writebuf != NULL | |
f2de9785 | 1621 | && target_dcache_init_p () |
41dcd03f | 1622 | && !region->attrib.cache |
29453a14 YQ |
1623 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1624 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1625 | { |
f2de9785 | 1626 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1627 | |
9b409511 | 1628 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1629 | } |
1630 | ||
cf7a04e8 DJ |
1631 | /* If we still haven't got anything, return the last error. We |
1632 | give up. */ | |
1633 | return res; | |
0779438d AC |
1634 | } |
1635 | ||
f0ba3972 PA |
1636 | /* Perform a partial memory transfer. For docs see target.h, |
1637 | to_xfer_partial. */ | |
1638 | ||
9b409511 | 1639 | static enum target_xfer_status |
f0ba3972 | 1640 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1641 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1642 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1643 | { |
9b409511 | 1644 | enum target_xfer_status res; |
f0ba3972 PA |
1645 | |
1646 | /* Zero length requests are ok and require no work. */ | |
1647 | if (len == 0) | |
9b409511 | 1648 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1649 | |
1650 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1651 | breakpoint insns, thus hiding out from higher layers whether | |
1652 | there are software breakpoints inserted in the code stream. */ | |
1653 | if (readbuf != NULL) | |
1654 | { | |
9b409511 YQ |
1655 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1656 | xfered_len); | |
f0ba3972 | 1657 | |
9b409511 | 1658 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1659 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1660 | } | |
1661 | else | |
1662 | { | |
1663 | void *buf; | |
1664 | struct cleanup *old_chain; | |
1665 | ||
67c059c2 AB |
1666 | /* A large write request is likely to be partially satisfied |
1667 | by memory_xfer_partial_1. We will continually malloc | |
1668 | and free a copy of the entire write request for breakpoint | |
1669 | shadow handling even though we only end up writing a small | |
1670 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1671 | len = min (4096, len); | |
1672 | ||
f0ba3972 PA |
1673 | buf = xmalloc (len); |
1674 | old_chain = make_cleanup (xfree, buf); | |
1675 | memcpy (buf, writebuf, len); | |
1676 | ||
1677 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1678 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1679 | xfered_len); | |
f0ba3972 PA |
1680 | |
1681 | do_cleanups (old_chain); | |
1682 | } | |
1683 | ||
1684 | return res; | |
1685 | } | |
1686 | ||
8defab1a DJ |
1687 | static void |
1688 | restore_show_memory_breakpoints (void *arg) | |
1689 | { | |
1690 | show_memory_breakpoints = (uintptr_t) arg; | |
1691 | } | |
1692 | ||
1693 | struct cleanup * | |
1694 | make_show_memory_breakpoints_cleanup (int show) | |
1695 | { | |
1696 | int current = show_memory_breakpoints; | |
8defab1a | 1697 | |
5d502164 | 1698 | show_memory_breakpoints = show; |
8defab1a DJ |
1699 | return make_cleanup (restore_show_memory_breakpoints, |
1700 | (void *) (uintptr_t) current); | |
1701 | } | |
1702 | ||
7f79c47e DE |
1703 | /* For docs see target.h, to_xfer_partial. */ |
1704 | ||
9b409511 | 1705 | enum target_xfer_status |
27394598 AC |
1706 | target_xfer_partial (struct target_ops *ops, |
1707 | enum target_object object, const char *annex, | |
4ac248ca | 1708 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1709 | ULONGEST offset, ULONGEST len, |
1710 | ULONGEST *xfered_len) | |
27394598 | 1711 | { |
9b409511 | 1712 | enum target_xfer_status retval; |
27394598 AC |
1713 | |
1714 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1715 | |
ce6d0892 YQ |
1716 | /* Transfer is done when LEN is zero. */ |
1717 | if (len == 0) | |
9b409511 | 1718 | return TARGET_XFER_EOF; |
ce6d0892 | 1719 | |
d914c394 SS |
1720 | if (writebuf && !may_write_memory) |
1721 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1722 | core_addr_to_string_nz (offset), plongest (len)); | |
1723 | ||
9b409511 YQ |
1724 | *xfered_len = 0; |
1725 | ||
cf7a04e8 DJ |
1726 | /* If this is a memory transfer, let the memory-specific code |
1727 | have a look at it instead. Memory transfers are more | |
1728 | complicated. */ | |
29453a14 YQ |
1729 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1730 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1731 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1732 | writebuf, offset, len, xfered_len); |
9f713294 | 1733 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1734 | { |
9f713294 | 1735 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1736 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1737 | xfered_len); | |
cf7a04e8 | 1738 | } |
9f713294 YQ |
1739 | else |
1740 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1741 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1742 | |
27394598 AC |
1743 | if (targetdebug) |
1744 | { | |
1745 | const unsigned char *myaddr = NULL; | |
1746 | ||
1747 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1748 | "%s:target_xfer_partial " |
9b409511 | 1749 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1750 | ops->to_shortname, |
1751 | (int) object, | |
1752 | (annex ? annex : "(null)"), | |
53b71562 JB |
1753 | host_address_to_string (readbuf), |
1754 | host_address_to_string (writebuf), | |
0b1553bc | 1755 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1756 | pulongest (len), retval, |
1757 | pulongest (*xfered_len)); | |
27394598 AC |
1758 | |
1759 | if (readbuf) | |
1760 | myaddr = readbuf; | |
1761 | if (writebuf) | |
1762 | myaddr = writebuf; | |
9b409511 | 1763 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1764 | { |
1765 | int i; | |
2bc416ba | 1766 | |
27394598 | 1767 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1768 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1769 | { |
53b71562 | 1770 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1771 | { |
1772 | if (targetdebug < 2 && i > 0) | |
1773 | { | |
1774 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1775 | break; | |
1776 | } | |
1777 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1778 | } | |
2bc416ba | 1779 | |
27394598 AC |
1780 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1781 | } | |
1782 | } | |
2bc416ba | 1783 | |
27394598 AC |
1784 | fputc_unfiltered ('\n', gdb_stdlog); |
1785 | } | |
9b409511 YQ |
1786 | |
1787 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1788 | properly. Do assertion after printing debug messages, so that we | |
1789 | can find more clues on assertion failure from debugging messages. */ | |
1790 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1791 | gdb_assert (*xfered_len > 0); | |
1792 | ||
27394598 AC |
1793 | return retval; |
1794 | } | |
1795 | ||
578d3588 PA |
1796 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1797 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1798 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1799 | |
1800 | If an error occurs, no guarantee is made about the contents of the data at | |
1801 | MYADDR. In particular, the caller should not depend upon partial reads | |
1802 | filling the buffer with good data. There is no way for the caller to know | |
1803 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1804 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1805 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1806 | |
1807 | int | |
1b162304 | 1808 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1809 | { |
c35b1492 PA |
1810 | /* Dispatch to the topmost target, not the flattened current_target. |
1811 | Memory accesses check target->to_has_(all_)memory, and the | |
1812 | flattened target doesn't inherit those. */ | |
1813 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1814 | myaddr, memaddr, len) == len) |
1815 | return 0; | |
0779438d | 1816 | else |
578d3588 | 1817 | return TARGET_XFER_E_IO; |
c906108c SS |
1818 | } |
1819 | ||
aee4bf85 PA |
1820 | /* Like target_read_memory, but specify explicitly that this is a read |
1821 | from the target's raw memory. That is, this read bypasses the | |
1822 | dcache, breakpoint shadowing, etc. */ | |
1823 | ||
1824 | int | |
1825 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1826 | { | |
1827 | /* See comment in target_read_memory about why the request starts at | |
1828 | current_target.beneath. */ | |
1829 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1830 | myaddr, memaddr, len) == len) | |
1831 | return 0; | |
1832 | else | |
1833 | return TARGET_XFER_E_IO; | |
1834 | } | |
1835 | ||
4e5d721f DE |
1836 | /* Like target_read_memory, but specify explicitly that this is a read from |
1837 | the target's stack. This may trigger different cache behavior. */ | |
1838 | ||
1839 | int | |
45aa4659 | 1840 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1841 | { |
aee4bf85 PA |
1842 | /* See comment in target_read_memory about why the request starts at |
1843 | current_target.beneath. */ | |
4e5d721f DE |
1844 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1845 | myaddr, memaddr, len) == len) | |
1846 | return 0; | |
1847 | else | |
578d3588 | 1848 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1849 | } |
1850 | ||
29453a14 YQ |
1851 | /* Like target_read_memory, but specify explicitly that this is a read from |
1852 | the target's code. This may trigger different cache behavior. */ | |
1853 | ||
1854 | int | |
1855 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1856 | { | |
aee4bf85 PA |
1857 | /* See comment in target_read_memory about why the request starts at |
1858 | current_target.beneath. */ | |
29453a14 YQ |
1859 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1860 | myaddr, memaddr, len) == len) | |
1861 | return 0; | |
1862 | else | |
1863 | return TARGET_XFER_E_IO; | |
1864 | } | |
1865 | ||
7f79c47e | 1866 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1867 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1868 | error occurs. If an error occurs, no guarantee is made about how |
1869 | much data got written. Callers that can deal with partial writes | |
1870 | should call target_write. */ | |
7f79c47e | 1871 | |
c906108c | 1872 | int |
45aa4659 | 1873 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1874 | { |
aee4bf85 PA |
1875 | /* See comment in target_read_memory about why the request starts at |
1876 | current_target.beneath. */ | |
c35b1492 | 1877 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1878 | myaddr, memaddr, len) == len) |
1879 | return 0; | |
0779438d | 1880 | else |
578d3588 | 1881 | return TARGET_XFER_E_IO; |
c906108c | 1882 | } |
c5aa993b | 1883 | |
f0ba3972 | 1884 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1885 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1886 | if any error occurs. If an error occurs, no guarantee is made |
1887 | about how much data got written. Callers that can deal with | |
1888 | partial writes should call target_write. */ | |
f0ba3972 PA |
1889 | |
1890 | int | |
45aa4659 | 1891 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1892 | { |
aee4bf85 PA |
1893 | /* See comment in target_read_memory about why the request starts at |
1894 | current_target.beneath. */ | |
f0ba3972 PA |
1895 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1896 | myaddr, memaddr, len) == len) | |
1897 | return 0; | |
1898 | else | |
578d3588 | 1899 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1900 | } |
1901 | ||
fd79ecee DJ |
1902 | /* Fetch the target's memory map. */ |
1903 | ||
1904 | VEC(mem_region_s) * | |
1905 | target_memory_map (void) | |
1906 | { | |
1907 | VEC(mem_region_s) *result; | |
1908 | struct mem_region *last_one, *this_one; | |
1909 | int ix; | |
1910 | struct target_ops *t; | |
1911 | ||
1912 | if (targetdebug) | |
1913 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1914 | ||
1915 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1916 | if (t->to_memory_map != NULL) | |
1917 | break; | |
1918 | ||
1919 | if (t == NULL) | |
1920 | return NULL; | |
1921 | ||
1922 | result = t->to_memory_map (t); | |
1923 | if (result == NULL) | |
1924 | return NULL; | |
1925 | ||
1926 | qsort (VEC_address (mem_region_s, result), | |
1927 | VEC_length (mem_region_s, result), | |
1928 | sizeof (struct mem_region), mem_region_cmp); | |
1929 | ||
1930 | /* Check that regions do not overlap. Simultaneously assign | |
1931 | a numbering for the "mem" commands to use to refer to | |
1932 | each region. */ | |
1933 | last_one = NULL; | |
1934 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1935 | { | |
1936 | this_one->number = ix; | |
1937 | ||
1938 | if (last_one && last_one->hi > this_one->lo) | |
1939 | { | |
1940 | warning (_("Overlapping regions in memory map: ignoring")); | |
1941 | VEC_free (mem_region_s, result); | |
1942 | return NULL; | |
1943 | } | |
1944 | last_one = this_one; | |
1945 | } | |
1946 | ||
1947 | return result; | |
1948 | } | |
1949 | ||
a76d924d DJ |
1950 | void |
1951 | target_flash_erase (ULONGEST address, LONGEST length) | |
1952 | { | |
1953 | struct target_ops *t; | |
1954 | ||
1955 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1956 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1957 | { |
1958 | if (targetdebug) | |
1959 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1960 | hex_string (address), phex (length, 0)); | |
1961 | t->to_flash_erase (t, address, length); | |
1962 | return; | |
1963 | } | |
a76d924d DJ |
1964 | |
1965 | tcomplain (); | |
1966 | } | |
1967 | ||
1968 | void | |
1969 | target_flash_done (void) | |
1970 | { | |
1971 | struct target_ops *t; | |
1972 | ||
1973 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1974 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1975 | { |
1976 | if (targetdebug) | |
1977 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1978 | t->to_flash_done (t); | |
1979 | return; | |
1980 | } | |
a76d924d DJ |
1981 | |
1982 | tcomplain (); | |
1983 | } | |
1984 | ||
920d2a44 AC |
1985 | static void |
1986 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1987 | struct cmd_list_element *c, const char *value) | |
1988 | { | |
3e43a32a MS |
1989 | fprintf_filtered (file, |
1990 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1991 | value); |
1992 | } | |
3a11626d | 1993 | |
1e3ff5ad AC |
1994 | /* More generic transfers. */ |
1995 | ||
9b409511 | 1996 | static enum target_xfer_status |
8aa91c1e | 1997 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1998 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
1999 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
2000 | ULONGEST *xfered_len) | |
0088c768 AC |
2001 | { |
2002 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
2003 | && ops->deprecated_xfer_memory != NULL) |
2004 | /* If available, fall back to the target's | |
2005 | "deprecated_xfer_memory" method. */ | |
0088c768 | 2006 | { |
4b8a223f | 2007 | int xfered = -1; |
5d502164 | 2008 | |
0088c768 | 2009 | errno = 0; |
4b8a223f AC |
2010 | if (writebuf != NULL) |
2011 | { | |
2012 | void *buffer = xmalloc (len); | |
2013 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 2014 | |
4b8a223f | 2015 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
2016 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
2017 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
2018 | do_cleanups (cleanup); |
2019 | } | |
2020 | if (readbuf != NULL) | |
244e85c8 MS |
2021 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
2022 | 0/*read*/, NULL, ops); | |
0088c768 | 2023 | if (xfered > 0) |
9b409511 YQ |
2024 | { |
2025 | *xfered_len = (ULONGEST) xfered; | |
2026 | return TARGET_XFER_E_IO; | |
2027 | } | |
0088c768 | 2028 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
2029 | /* "deprecated_xfer_memory" uses 0, cross checked against |
2030 | ERRNO as one indication of an error. */ | |
9b409511 | 2031 | return TARGET_XFER_EOF; |
0088c768 | 2032 | else |
9b409511 | 2033 | return TARGET_XFER_E_IO; |
0088c768 | 2034 | } |
0088c768 | 2035 | else |
6b84065d TT |
2036 | { |
2037 | gdb_assert (ops->beneath != NULL); | |
2038 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2039 | readbuf, writebuf, offset, len, | |
2040 | xfered_len); | |
2041 | } | |
0088c768 AC |
2042 | } |
2043 | ||
7f79c47e | 2044 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2045 | |
9b409511 | 2046 | static enum target_xfer_status |
1e3ff5ad AC |
2047 | target_read_partial (struct target_ops *ops, |
2048 | enum target_object object, | |
1b0ba102 | 2049 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
2050 | ULONGEST offset, ULONGEST len, |
2051 | ULONGEST *xfered_len) | |
1e3ff5ad | 2052 | { |
9b409511 YQ |
2053 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
2054 | xfered_len); | |
1e3ff5ad AC |
2055 | } |
2056 | ||
8a55ffb0 | 2057 | static enum target_xfer_status |
1e3ff5ad AC |
2058 | target_write_partial (struct target_ops *ops, |
2059 | enum target_object object, | |
1b0ba102 | 2060 | const char *annex, const gdb_byte *buf, |
9b409511 | 2061 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 2062 | { |
9b409511 YQ |
2063 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
2064 | xfered_len); | |
1e3ff5ad AC |
2065 | } |
2066 | ||
2067 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2068 | |
2069 | /* For docs on target_read see target.h. */ | |
2070 | ||
1e3ff5ad AC |
2071 | LONGEST |
2072 | target_read (struct target_ops *ops, | |
2073 | enum target_object object, | |
1b0ba102 | 2074 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2075 | ULONGEST offset, LONGEST len) |
2076 | { | |
2077 | LONGEST xfered = 0; | |
5d502164 | 2078 | |
1e3ff5ad AC |
2079 | while (xfered < len) |
2080 | { | |
9b409511 YQ |
2081 | ULONGEST xfered_len; |
2082 | enum target_xfer_status status; | |
2083 | ||
2084 | status = target_read_partial (ops, object, annex, | |
2085 | (gdb_byte *) buf + xfered, | |
2086 | offset + xfered, len - xfered, | |
2087 | &xfered_len); | |
5d502164 | 2088 | |
1e3ff5ad | 2089 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 2090 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2091 | return xfered; |
9b409511 YQ |
2092 | else if (status == TARGET_XFER_OK) |
2093 | { | |
2094 | xfered += xfered_len; | |
2095 | QUIT; | |
2096 | } | |
2097 | else | |
0088c768 | 2098 | return -1; |
9b409511 | 2099 | |
1e3ff5ad AC |
2100 | } |
2101 | return len; | |
2102 | } | |
2103 | ||
f1a507a1 JB |
2104 | /* Assuming that the entire [begin, end) range of memory cannot be |
2105 | read, try to read whatever subrange is possible to read. | |
2106 | ||
2107 | The function returns, in RESULT, either zero or one memory block. | |
2108 | If there's a readable subrange at the beginning, it is completely | |
2109 | read and returned. Any further readable subrange will not be read. | |
2110 | Otherwise, if there's a readable subrange at the end, it will be | |
2111 | completely read and returned. Any readable subranges before it | |
2112 | (obviously, not starting at the beginning), will be ignored. In | |
2113 | other cases -- either no readable subrange, or readable subrange(s) | |
2114 | that is neither at the beginning, or end, nothing is returned. | |
2115 | ||
2116 | The purpose of this function is to handle a read across a boundary | |
2117 | of accessible memory in a case when memory map is not available. | |
2118 | The above restrictions are fine for this case, but will give | |
2119 | incorrect results if the memory is 'patchy'. However, supporting | |
2120 | 'patchy' memory would require trying to read every single byte, | |
2121 | and it seems unacceptable solution. Explicit memory map is | |
2122 | recommended for this case -- and target_read_memory_robust will | |
2123 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2124 | |
2125 | static void | |
3e43a32a MS |
2126 | read_whatever_is_readable (struct target_ops *ops, |
2127 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2128 | VEC(memory_read_result_s) **result) |
d5086790 | 2129 | { |
f1a507a1 | 2130 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2131 | ULONGEST current_begin = begin; |
2132 | ULONGEST current_end = end; | |
2133 | int forward; | |
2134 | memory_read_result_s r; | |
9b409511 | 2135 | ULONGEST xfered_len; |
8dedea02 VP |
2136 | |
2137 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2138 | if (end - begin <= 1) | |
13b3fd9b MS |
2139 | { |
2140 | xfree (buf); | |
2141 | return; | |
2142 | } | |
8dedea02 VP |
2143 | |
2144 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2145 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2146 | at the boundary of accessible region. */ |
2147 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 2148 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
2149 | { |
2150 | forward = 1; | |
2151 | ++current_begin; | |
2152 | } | |
2153 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
2154 | buf + (end-begin) - 1, end - 1, 1, |
2155 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
2156 | { |
2157 | forward = 0; | |
2158 | --current_end; | |
2159 | } | |
2160 | else | |
2161 | { | |
13b3fd9b | 2162 | xfree (buf); |
8dedea02 VP |
2163 | return; |
2164 | } | |
2165 | ||
2166 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2167 | found to be not readable as a whole. | |
2168 | ||
2169 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2170 | so there's no point trying further. */ | |
2171 | while (current_end - current_begin > 1) | |
2172 | { | |
2173 | ULONGEST first_half_begin, first_half_end; | |
2174 | ULONGEST second_half_begin, second_half_end; | |
2175 | LONGEST xfer; | |
8dedea02 | 2176 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2177 | |
8dedea02 VP |
2178 | if (forward) |
2179 | { | |
2180 | first_half_begin = current_begin; | |
2181 | first_half_end = middle; | |
2182 | second_half_begin = middle; | |
2183 | second_half_end = current_end; | |
2184 | } | |
2185 | else | |
2186 | { | |
2187 | first_half_begin = middle; | |
2188 | first_half_end = current_end; | |
2189 | second_half_begin = current_begin; | |
2190 | second_half_end = middle; | |
2191 | } | |
2192 | ||
2193 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2194 | buf + (first_half_begin - begin), | |
2195 | first_half_begin, | |
2196 | first_half_end - first_half_begin); | |
2197 | ||
2198 | if (xfer == first_half_end - first_half_begin) | |
2199 | { | |
c378eb4e | 2200 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2201 | other half. */ |
8dedea02 VP |
2202 | current_begin = second_half_begin; |
2203 | current_end = second_half_end; | |
2204 | } | |
2205 | else | |
2206 | { | |
c378eb4e MS |
2207 | /* This half is not readable. Because we've tried one byte, we |
2208 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2209 | iteration to divide again and try to read. |
2210 | ||
2211 | We don't handle the other half, because this function only tries | |
2212 | to read a single readable subrange. */ | |
2213 | current_begin = first_half_begin; | |
2214 | current_end = first_half_end; | |
2215 | } | |
2216 | } | |
2217 | ||
2218 | if (forward) | |
2219 | { | |
2220 | /* The [begin, current_begin) range has been read. */ | |
2221 | r.begin = begin; | |
2222 | r.end = current_begin; | |
2223 | r.data = buf; | |
2224 | } | |
2225 | else | |
2226 | { | |
2227 | /* The [current_end, end) range has been read. */ | |
2228 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2229 | |
8dedea02 VP |
2230 | r.data = xmalloc (rlen); |
2231 | memcpy (r.data, buf + current_end - begin, rlen); | |
2232 | r.begin = current_end; | |
2233 | r.end = end; | |
2234 | xfree (buf); | |
2235 | } | |
2236 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2237 | } | |
2238 | ||
2239 | void | |
2240 | free_memory_read_result_vector (void *x) | |
2241 | { | |
2242 | VEC(memory_read_result_s) *v = x; | |
2243 | memory_read_result_s *current; | |
2244 | int ix; | |
2245 | ||
2246 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2247 | { | |
2248 | xfree (current->data); | |
2249 | } | |
2250 | VEC_free (memory_read_result_s, v); | |
2251 | } | |
2252 | ||
2253 | VEC(memory_read_result_s) * | |
2254 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2255 | { | |
2256 | VEC(memory_read_result_s) *result = 0; | |
2257 | ||
2258 | LONGEST xfered = 0; | |
d5086790 VP |
2259 | while (xfered < len) |
2260 | { | |
8dedea02 VP |
2261 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2262 | LONGEST rlen; | |
5d502164 | 2263 | |
8dedea02 VP |
2264 | /* If there is no explicit region, a fake one should be created. */ |
2265 | gdb_assert (region); | |
2266 | ||
2267 | if (region->hi == 0) | |
2268 | rlen = len - xfered; | |
2269 | else | |
2270 | rlen = region->hi - offset; | |
2271 | ||
2272 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2273 | { |
c378eb4e | 2274 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2275 | if the region is explicitly marked inaccessible, or |
2276 | 'inaccessible-by-default' is in effect. */ | |
2277 | xfered += rlen; | |
2278 | } | |
2279 | else | |
2280 | { | |
2281 | LONGEST to_read = min (len - xfered, rlen); | |
2282 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2283 | ||
2284 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2285 | (gdb_byte *) buffer, | |
2286 | offset + xfered, to_read); | |
2287 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2288 | if (xfer <= 0) |
d5086790 | 2289 | { |
c378eb4e | 2290 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2291 | some subrange. */ |
2292 | xfree (buffer); | |
3e43a32a MS |
2293 | read_whatever_is_readable (ops, offset + xfered, |
2294 | offset + xfered + to_read, &result); | |
8dedea02 | 2295 | xfered += to_read; |
d5086790 | 2296 | } |
8dedea02 VP |
2297 | else |
2298 | { | |
2299 | struct memory_read_result r; | |
2300 | r.data = buffer; | |
2301 | r.begin = offset + xfered; | |
2302 | r.end = r.begin + xfer; | |
2303 | VEC_safe_push (memory_read_result_s, result, &r); | |
2304 | xfered += xfer; | |
2305 | } | |
2306 | QUIT; | |
d5086790 | 2307 | } |
d5086790 | 2308 | } |
8dedea02 | 2309 | return result; |
d5086790 VP |
2310 | } |
2311 | ||
8dedea02 | 2312 | |
cf7a04e8 DJ |
2313 | /* An alternative to target_write with progress callbacks. */ |
2314 | ||
1e3ff5ad | 2315 | LONGEST |
cf7a04e8 DJ |
2316 | target_write_with_progress (struct target_ops *ops, |
2317 | enum target_object object, | |
2318 | const char *annex, const gdb_byte *buf, | |
2319 | ULONGEST offset, LONGEST len, | |
2320 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2321 | { |
2322 | LONGEST xfered = 0; | |
a76d924d DJ |
2323 | |
2324 | /* Give the progress callback a chance to set up. */ | |
2325 | if (progress) | |
2326 | (*progress) (0, baton); | |
2327 | ||
1e3ff5ad AC |
2328 | while (xfered < len) |
2329 | { | |
9b409511 YQ |
2330 | ULONGEST xfered_len; |
2331 | enum target_xfer_status status; | |
2332 | ||
2333 | status = target_write_partial (ops, object, annex, | |
2334 | (gdb_byte *) buf + xfered, | |
2335 | offset + xfered, len - xfered, | |
2336 | &xfered_len); | |
cf7a04e8 | 2337 | |
9b409511 | 2338 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2339 | return xfered; |
9b409511 | 2340 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2341 | return -1; |
cf7a04e8 | 2342 | |
9b409511 | 2343 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2344 | if (progress) |
9b409511 | 2345 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2346 | |
9b409511 | 2347 | xfered += xfered_len; |
1e3ff5ad AC |
2348 | QUIT; |
2349 | } | |
2350 | return len; | |
2351 | } | |
2352 | ||
7f79c47e DE |
2353 | /* For docs on target_write see target.h. */ |
2354 | ||
cf7a04e8 DJ |
2355 | LONGEST |
2356 | target_write (struct target_ops *ops, | |
2357 | enum target_object object, | |
2358 | const char *annex, const gdb_byte *buf, | |
2359 | ULONGEST offset, LONGEST len) | |
2360 | { | |
2361 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2362 | NULL, NULL); | |
2363 | } | |
2364 | ||
159f81f3 DJ |
2365 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2366 | the size of the transferred data. PADDING additional bytes are | |
2367 | available in *BUF_P. This is a helper function for | |
2368 | target_read_alloc; see the declaration of that function for more | |
2369 | information. */ | |
13547ab6 | 2370 | |
159f81f3 DJ |
2371 | static LONGEST |
2372 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2373 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2374 | { |
2375 | size_t buf_alloc, buf_pos; | |
2376 | gdb_byte *buf; | |
13547ab6 DJ |
2377 | |
2378 | /* This function does not have a length parameter; it reads the | |
2379 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2380 | from one target and partly from another (in a different stratum, | |
2381 | e.g. a core file and an executable). Both reasons make it | |
2382 | unsuitable for reading memory. */ | |
2383 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2384 | ||
2385 | /* Start by reading up to 4K at a time. The target will throttle | |
2386 | this number down if necessary. */ | |
2387 | buf_alloc = 4096; | |
2388 | buf = xmalloc (buf_alloc); | |
2389 | buf_pos = 0; | |
2390 | while (1) | |
2391 | { | |
9b409511 YQ |
2392 | ULONGEST xfered_len; |
2393 | enum target_xfer_status status; | |
2394 | ||
2395 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2396 | buf_pos, buf_alloc - buf_pos - padding, | |
2397 | &xfered_len); | |
2398 | ||
2399 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2400 | { |
2401 | /* Read all there was. */ | |
2402 | if (buf_pos == 0) | |
2403 | xfree (buf); | |
2404 | else | |
2405 | *buf_p = buf; | |
2406 | return buf_pos; | |
2407 | } | |
9b409511 YQ |
2408 | else if (status != TARGET_XFER_OK) |
2409 | { | |
2410 | /* An error occurred. */ | |
2411 | xfree (buf); | |
2412 | return TARGET_XFER_E_IO; | |
2413 | } | |
13547ab6 | 2414 | |
9b409511 | 2415 | buf_pos += xfered_len; |
13547ab6 DJ |
2416 | |
2417 | /* If the buffer is filling up, expand it. */ | |
2418 | if (buf_alloc < buf_pos * 2) | |
2419 | { | |
2420 | buf_alloc *= 2; | |
2421 | buf = xrealloc (buf, buf_alloc); | |
2422 | } | |
2423 | ||
2424 | QUIT; | |
2425 | } | |
2426 | } | |
2427 | ||
159f81f3 DJ |
2428 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2429 | the size of the transferred data. See the declaration in "target.h" | |
2430 | function for more information about the return value. */ | |
2431 | ||
2432 | LONGEST | |
2433 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2434 | const char *annex, gdb_byte **buf_p) | |
2435 | { | |
2436 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2437 | } | |
2438 | ||
2439 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2440 | returned as a string, allocated using xmalloc. If an error occurs | |
2441 | or the transfer is unsupported, NULL is returned. Empty objects | |
2442 | are returned as allocated but empty strings. A warning is issued | |
2443 | if the result contains any embedded NUL bytes. */ | |
2444 | ||
2445 | char * | |
2446 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2447 | const char *annex) | |
2448 | { | |
39086a0e PA |
2449 | gdb_byte *buffer; |
2450 | char *bufstr; | |
7313baad | 2451 | LONGEST i, transferred; |
159f81f3 | 2452 | |
39086a0e PA |
2453 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2454 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2455 | |
2456 | if (transferred < 0) | |
2457 | return NULL; | |
2458 | ||
2459 | if (transferred == 0) | |
2460 | return xstrdup (""); | |
2461 | ||
39086a0e | 2462 | bufstr[transferred] = 0; |
7313baad UW |
2463 | |
2464 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2465 | for (i = strlen (bufstr); i < transferred; i++) |
2466 | if (bufstr[i] != 0) | |
7313baad UW |
2467 | { |
2468 | warning (_("target object %d, annex %s, " | |
2469 | "contained unexpected null characters"), | |
2470 | (int) object, annex ? annex : "(none)"); | |
2471 | break; | |
2472 | } | |
159f81f3 | 2473 | |
39086a0e | 2474 | return bufstr; |
159f81f3 DJ |
2475 | } |
2476 | ||
b6591e8b AC |
2477 | /* Memory transfer methods. */ |
2478 | ||
2479 | void | |
1b0ba102 | 2480 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2481 | LONGEST len) |
2482 | { | |
07b82ea5 PA |
2483 | /* This method is used to read from an alternate, non-current |
2484 | target. This read must bypass the overlay support (as symbols | |
2485 | don't match this target), and GDB's internal cache (wrong cache | |
2486 | for this target). */ | |
2487 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2488 | != len) |
578d3588 | 2489 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2490 | } |
2491 | ||
2492 | ULONGEST | |
5d502164 MS |
2493 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2494 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2495 | { |
f6519ebc | 2496 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2497 | |
2498 | gdb_assert (len <= sizeof (buf)); | |
2499 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2500 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2501 | } |
2502 | ||
3db08215 MM |
2503 | /* See target.h. */ |
2504 | ||
d914c394 SS |
2505 | int |
2506 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2507 | struct bp_target_info *bp_tgt) | |
2508 | { | |
2509 | if (!may_insert_breakpoints) | |
2510 | { | |
2511 | warning (_("May not insert breakpoints")); | |
2512 | return 1; | |
2513 | } | |
2514 | ||
6b84065d TT |
2515 | return current_target.to_insert_breakpoint (¤t_target, |
2516 | gdbarch, bp_tgt); | |
d914c394 SS |
2517 | } |
2518 | ||
3db08215 MM |
2519 | /* See target.h. */ |
2520 | ||
d914c394 | 2521 | int |
6b84065d TT |
2522 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2523 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2524 | { |
2525 | /* This is kind of a weird case to handle, but the permission might | |
2526 | have been changed after breakpoints were inserted - in which case | |
2527 | we should just take the user literally and assume that any | |
2528 | breakpoints should be left in place. */ | |
2529 | if (!may_insert_breakpoints) | |
2530 | { | |
2531 | warning (_("May not remove breakpoints")); | |
2532 | return 1; | |
2533 | } | |
2534 | ||
6b84065d TT |
2535 | return current_target.to_remove_breakpoint (¤t_target, |
2536 | gdbarch, bp_tgt); | |
d914c394 SS |
2537 | } |
2538 | ||
c906108c | 2539 | static void |
fba45db2 | 2540 | target_info (char *args, int from_tty) |
c906108c SS |
2541 | { |
2542 | struct target_ops *t; | |
c906108c | 2543 | int has_all_mem = 0; |
c5aa993b | 2544 | |
c906108c | 2545 | if (symfile_objfile != NULL) |
4262abfb JK |
2546 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2547 | objfile_name (symfile_objfile)); | |
c906108c | 2548 | |
258b763a | 2549 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2550 | { |
c35b1492 | 2551 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2552 | continue; |
2553 | ||
c5aa993b | 2554 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2555 | continue; |
2556 | if (has_all_mem) | |
3e43a32a MS |
2557 | printf_unfiltered (_("\tWhile running this, " |
2558 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2559 | printf_unfiltered ("%s:\n", t->to_longname); |
2560 | (t->to_files_info) (t); | |
c35b1492 | 2561 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2562 | } |
2563 | } | |
2564 | ||
fd79ecee DJ |
2565 | /* This function is called before any new inferior is created, e.g. |
2566 | by running a program, attaching, or connecting to a target. | |
2567 | It cleans up any state from previous invocations which might | |
2568 | change between runs. This is a subset of what target_preopen | |
2569 | resets (things which might change between targets). */ | |
2570 | ||
2571 | void | |
2572 | target_pre_inferior (int from_tty) | |
2573 | { | |
c378eb4e | 2574 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2575 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2576 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2577 | to reproduce: |
2578 | ||
2579 | bash$ ./foo& | |
2580 | [1] 4711 | |
2581 | bash$ ./foo& | |
2582 | [1] 4712 | |
2583 | bash$ gdb ./foo | |
2584 | [...] | |
2585 | (gdb) attach 4711 | |
2586 | (gdb) detach | |
2587 | (gdb) attach 4712 | |
2588 | Cannot access memory at address 0xdeadbeef | |
2589 | */ | |
b9db4ced | 2590 | |
50c71eaf PA |
2591 | /* In some OSs, the shared library list is the same/global/shared |
2592 | across inferiors. If code is shared between processes, so are | |
2593 | memory regions and features. */ | |
f5656ead | 2594 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2595 | { |
2596 | no_shared_libraries (NULL, from_tty); | |
2597 | ||
2598 | invalidate_target_mem_regions (); | |
424163ea | 2599 | |
50c71eaf PA |
2600 | target_clear_description (); |
2601 | } | |
8ffcbaaf YQ |
2602 | |
2603 | agent_capability_invalidate (); | |
fd79ecee DJ |
2604 | } |
2605 | ||
b8fa0bfa PA |
2606 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2607 | inferior. */ | |
2608 | ||
2609 | static int | |
2610 | dispose_inferior (struct inferior *inf, void *args) | |
2611 | { | |
2612 | struct thread_info *thread; | |
2613 | ||
2614 | thread = any_thread_of_process (inf->pid); | |
2615 | if (thread) | |
2616 | { | |
2617 | switch_to_thread (thread->ptid); | |
2618 | ||
2619 | /* Core inferiors actually should be detached, not killed. */ | |
2620 | if (target_has_execution) | |
2621 | target_kill (); | |
2622 | else | |
2623 | target_detach (NULL, 0); | |
2624 | } | |
2625 | ||
2626 | return 0; | |
2627 | } | |
2628 | ||
c906108c SS |
2629 | /* This is to be called by the open routine before it does |
2630 | anything. */ | |
2631 | ||
2632 | void | |
fba45db2 | 2633 | target_preopen (int from_tty) |
c906108c | 2634 | { |
c5aa993b | 2635 | dont_repeat (); |
c906108c | 2636 | |
b8fa0bfa | 2637 | if (have_inferiors ()) |
c5aa993b | 2638 | { |
adf40b2e | 2639 | if (!from_tty |
b8fa0bfa PA |
2640 | || !have_live_inferiors () |
2641 | || query (_("A program is being debugged already. Kill it? "))) | |
2642 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2643 | else |
8a3fe4f8 | 2644 | error (_("Program not killed.")); |
c906108c SS |
2645 | } |
2646 | ||
2647 | /* Calling target_kill may remove the target from the stack. But if | |
2648 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2649 | /* Leave the exec target, though. The user may be switching from a |
2650 | live process to a core of the same program. */ | |
460014f5 | 2651 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2652 | |
2653 | target_pre_inferior (from_tty); | |
c906108c SS |
2654 | } |
2655 | ||
2656 | /* Detach a target after doing deferred register stores. */ | |
2657 | ||
2658 | void | |
52554a0e | 2659 | target_detach (const char *args, int from_tty) |
c906108c | 2660 | { |
136d6dae VP |
2661 | struct target_ops* t; |
2662 | ||
f5656ead | 2663 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2664 | /* Don't remove global breakpoints here. They're removed on |
2665 | disconnection from the target. */ | |
2666 | ; | |
2667 | else | |
2668 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2669 | them before detaching. */ | |
dfd4cc63 | 2670 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2671 | |
24291992 PA |
2672 | prepare_for_detach (); |
2673 | ||
136d6dae VP |
2674 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2675 | { | |
2676 | if (t->to_detach != NULL) | |
2677 | { | |
2678 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2679 | if (targetdebug) |
2680 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2681 | args, from_tty); | |
136d6dae VP |
2682 | return; |
2683 | } | |
2684 | } | |
2685 | ||
9b20d036 | 2686 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2687 | } |
2688 | ||
6ad8ae5c DJ |
2689 | void |
2690 | target_disconnect (char *args, int from_tty) | |
2691 | { | |
597320e7 DJ |
2692 | struct target_ops *t; |
2693 | ||
50c71eaf PA |
2694 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2695 | are global across processes, we have to remove them before | |
2696 | disconnecting. */ | |
74960c60 VP |
2697 | remove_breakpoints (); |
2698 | ||
597320e7 DJ |
2699 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2700 | if (t->to_disconnect != NULL) | |
2701 | { | |
2702 | if (targetdebug) | |
2703 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2704 | args, from_tty); | |
2705 | t->to_disconnect (t, args, from_tty); | |
2706 | return; | |
2707 | } | |
2708 | ||
2709 | tcomplain (); | |
6ad8ae5c DJ |
2710 | } |
2711 | ||
117de6a9 | 2712 | ptid_t |
47608cb1 | 2713 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2714 | { |
2715 | struct target_ops *t; | |
6b84065d TT |
2716 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2717 | status, options); | |
117de6a9 | 2718 | |
6b84065d | 2719 | if (targetdebug) |
117de6a9 | 2720 | { |
6b84065d TT |
2721 | char *status_string; |
2722 | char *options_string; | |
117de6a9 | 2723 | |
6b84065d TT |
2724 | status_string = target_waitstatus_to_string (status); |
2725 | options_string = target_options_to_string (options); | |
2726 | fprintf_unfiltered (gdb_stdlog, | |
2727 | "target_wait (%d, status, options={%s})" | |
2728 | " = %d, %s\n", | |
2729 | ptid_get_pid (ptid), options_string, | |
2730 | ptid_get_pid (retval), status_string); | |
2731 | xfree (status_string); | |
2732 | xfree (options_string); | |
117de6a9 PA |
2733 | } |
2734 | ||
6b84065d | 2735 | return retval; |
117de6a9 PA |
2736 | } |
2737 | ||
2738 | char * | |
2739 | target_pid_to_str (ptid_t ptid) | |
2740 | { | |
2741 | struct target_ops *t; | |
2742 | ||
2743 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2744 | { | |
2745 | if (t->to_pid_to_str != NULL) | |
2746 | return (*t->to_pid_to_str) (t, ptid); | |
2747 | } | |
2748 | ||
2749 | return normal_pid_to_str (ptid); | |
2750 | } | |
2751 | ||
4694da01 TT |
2752 | char * |
2753 | target_thread_name (struct thread_info *info) | |
2754 | { | |
2755 | struct target_ops *t; | |
2756 | ||
2757 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2758 | { | |
2759 | if (t->to_thread_name != NULL) | |
2760 | return (*t->to_thread_name) (info); | |
2761 | } | |
2762 | ||
2763 | return NULL; | |
2764 | } | |
2765 | ||
e1ac3328 | 2766 | void |
2ea28649 | 2767 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2768 | { |
28439f5e PA |
2769 | struct target_ops *t; |
2770 | ||
4e5d721f | 2771 | target_dcache_invalidate (); |
28439f5e | 2772 | |
6b84065d TT |
2773 | current_target.to_resume (¤t_target, ptid, step, signal); |
2774 | if (targetdebug) | |
2775 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2776 | ptid_get_pid (ptid), | |
2777 | step ? "step" : "continue", | |
2778 | gdb_signal_to_name (signal)); | |
28439f5e | 2779 | |
6b84065d TT |
2780 | registers_changed_ptid (ptid); |
2781 | set_executing (ptid, 1); | |
2782 | set_running (ptid, 1); | |
2783 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2784 | } |
2455069d UW |
2785 | |
2786 | void | |
2787 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2788 | { | |
2789 | struct target_ops *t; | |
2790 | ||
2791 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2792 | { | |
2793 | if (t->to_pass_signals != NULL) | |
2794 | { | |
2795 | if (targetdebug) | |
2796 | { | |
2797 | int i; | |
2798 | ||
2799 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2800 | numsigs); | |
2801 | ||
2802 | for (i = 0; i < numsigs; i++) | |
2803 | if (pass_signals[i]) | |
2804 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2805 | gdb_signal_to_name (i)); |
2455069d UW |
2806 | |
2807 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2808 | } | |
2809 | ||
2810 | (*t->to_pass_signals) (numsigs, pass_signals); | |
2811 | return; | |
2812 | } | |
2813 | } | |
2814 | } | |
2815 | ||
9b224c5e PA |
2816 | void |
2817 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2818 | { | |
2819 | struct target_ops *t; | |
2820 | ||
2821 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2822 | { | |
2823 | if (t->to_program_signals != NULL) | |
2824 | { | |
2825 | if (targetdebug) | |
2826 | { | |
2827 | int i; | |
2828 | ||
2829 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2830 | numsigs); | |
2831 | ||
2832 | for (i = 0; i < numsigs; i++) | |
2833 | if (program_signals[i]) | |
2834 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2835 | gdb_signal_to_name (i)); |
9b224c5e PA |
2836 | |
2837 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2838 | } | |
2839 | ||
2840 | (*t->to_program_signals) (numsigs, program_signals); | |
2841 | return; | |
2842 | } | |
2843 | } | |
2844 | } | |
2845 | ||
ee057212 DJ |
2846 | /* Look through the list of possible targets for a target that can |
2847 | follow forks. */ | |
2848 | ||
2849 | int | |
07107ca6 | 2850 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2851 | { |
2852 | struct target_ops *t; | |
2853 | ||
2854 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2855 | { | |
2856 | if (t->to_follow_fork != NULL) | |
2857 | { | |
07107ca6 | 2858 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2859 | |
ee057212 | 2860 | if (targetdebug) |
07107ca6 LM |
2861 | fprintf_unfiltered (gdb_stdlog, |
2862 | "target_follow_fork (%d, %d) = %d\n", | |
2863 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2864 | return retval; |
2865 | } | |
2866 | } | |
2867 | ||
2868 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2869 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2870 | _("could not find a target to follow fork")); |
ee057212 DJ |
2871 | } |
2872 | ||
136d6dae VP |
2873 | void |
2874 | target_mourn_inferior (void) | |
2875 | { | |
2876 | struct target_ops *t; | |
5d502164 | 2877 | |
136d6dae VP |
2878 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2879 | { | |
2880 | if (t->to_mourn_inferior != NULL) | |
2881 | { | |
2882 | t->to_mourn_inferior (t); | |
947b8855 PA |
2883 | if (targetdebug) |
2884 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2885 | |
2886 | /* We no longer need to keep handles on any of the object files. | |
2887 | Make sure to release them to avoid unnecessarily locking any | |
2888 | of them while we're not actually debugging. */ | |
2889 | bfd_cache_close_all (); | |
2890 | ||
136d6dae VP |
2891 | return; |
2892 | } | |
2893 | } | |
2894 | ||
2895 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2896 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2897 | } |
2898 | ||
424163ea DJ |
2899 | /* Look for a target which can describe architectural features, starting |
2900 | from TARGET. If we find one, return its description. */ | |
2901 | ||
2902 | const struct target_desc * | |
2903 | target_read_description (struct target_ops *target) | |
2904 | { | |
2905 | struct target_ops *t; | |
2906 | ||
2907 | for (t = target; t != NULL; t = t->beneath) | |
2908 | if (t->to_read_description != NULL) | |
2909 | { | |
2910 | const struct target_desc *tdesc; | |
2911 | ||
2912 | tdesc = t->to_read_description (t); | |
2913 | if (tdesc) | |
2914 | return tdesc; | |
2915 | } | |
2916 | ||
2917 | return NULL; | |
2918 | } | |
2919 | ||
08388c79 DE |
2920 | /* The default implementation of to_search_memory. |
2921 | This implements a basic search of memory, reading target memory and | |
2922 | performing the search here (as opposed to performing the search in on the | |
2923 | target side with, for example, gdbserver). */ | |
2924 | ||
2925 | int | |
2926 | simple_search_memory (struct target_ops *ops, | |
2927 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2928 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2929 | CORE_ADDR *found_addrp) | |
2930 | { | |
2931 | /* NOTE: also defined in find.c testcase. */ | |
2932 | #define SEARCH_CHUNK_SIZE 16000 | |
2933 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2934 | /* Buffer to hold memory contents for searching. */ | |
2935 | gdb_byte *search_buf; | |
2936 | unsigned search_buf_size; | |
2937 | struct cleanup *old_cleanups; | |
2938 | ||
2939 | search_buf_size = chunk_size + pattern_len - 1; | |
2940 | ||
2941 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2942 | if (search_space_len < search_buf_size) | |
2943 | search_buf_size = search_space_len; | |
2944 | ||
2945 | search_buf = malloc (search_buf_size); | |
2946 | if (search_buf == NULL) | |
5e1471f5 | 2947 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2948 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2949 | ||
2950 | /* Prime the search buffer. */ | |
2951 | ||
2952 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2953 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2954 | { | |
b3dc46ff AB |
2955 | warning (_("Unable to access %s bytes of target " |
2956 | "memory at %s, halting search."), | |
2957 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2958 | do_cleanups (old_cleanups); |
2959 | return -1; | |
2960 | } | |
2961 | ||
2962 | /* Perform the search. | |
2963 | ||
2964 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2965 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2966 | read in another N bytes. */ | |
2967 | ||
2968 | while (search_space_len >= pattern_len) | |
2969 | { | |
2970 | gdb_byte *found_ptr; | |
2971 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2972 | ||
2973 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2974 | pattern, pattern_len); | |
2975 | ||
2976 | if (found_ptr != NULL) | |
2977 | { | |
2978 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2979 | |
08388c79 DE |
2980 | *found_addrp = found_addr; |
2981 | do_cleanups (old_cleanups); | |
2982 | return 1; | |
2983 | } | |
2984 | ||
2985 | /* Not found in this chunk, skip to next chunk. */ | |
2986 | ||
2987 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2988 | if (search_space_len >= chunk_size) | |
2989 | search_space_len -= chunk_size; | |
2990 | else | |
2991 | search_space_len = 0; | |
2992 | ||
2993 | if (search_space_len >= pattern_len) | |
2994 | { | |
2995 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2996 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2997 | int nr_to_read; |
2998 | ||
2999 | /* Copy the trailing part of the previous iteration to the front | |
3000 | of the buffer for the next iteration. */ | |
3001 | gdb_assert (keep_len == pattern_len - 1); | |
3002 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
3003 | ||
3004 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
3005 | ||
3006 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
3007 | search_buf + keep_len, read_addr, | |
3008 | nr_to_read) != nr_to_read) | |
3009 | { | |
b3dc46ff | 3010 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 3011 | "memory at %s, halting search."), |
b3dc46ff | 3012 | plongest (nr_to_read), |
08388c79 DE |
3013 | hex_string (read_addr)); |
3014 | do_cleanups (old_cleanups); | |
3015 | return -1; | |
3016 | } | |
3017 | ||
3018 | start_addr += chunk_size; | |
3019 | } | |
3020 | } | |
3021 | ||
3022 | /* Not found. */ | |
3023 | ||
3024 | do_cleanups (old_cleanups); | |
3025 | return 0; | |
3026 | } | |
3027 | ||
3028 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
3029 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
3030 | ||
3031 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
3032 | requiring halting of the search (e.g. memory read error). | |
3033 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
3034 | ||
3035 | int | |
3036 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
3037 | const gdb_byte *pattern, ULONGEST pattern_len, | |
3038 | CORE_ADDR *found_addrp) | |
3039 | { | |
3040 | struct target_ops *t; | |
3041 | int found; | |
3042 | ||
3043 | /* We don't use INHERIT to set current_target.to_search_memory, | |
3044 | so we have to scan the target stack and handle targetdebug | |
3045 | ourselves. */ | |
3046 | ||
3047 | if (targetdebug) | |
3048 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3049 | hex_string (start_addr)); | |
3050 | ||
3051 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3052 | if (t->to_search_memory != NULL) | |
3053 | break; | |
3054 | ||
3055 | if (t != NULL) | |
3056 | { | |
3057 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3058 | pattern, pattern_len, found_addrp); | |
3059 | } | |
3060 | else | |
3061 | { | |
3062 | /* If a special version of to_search_memory isn't available, use the | |
3063 | simple version. */ | |
c35b1492 | 3064 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3065 | start_addr, search_space_len, |
3066 | pattern, pattern_len, found_addrp); | |
3067 | } | |
3068 | ||
3069 | if (targetdebug) | |
3070 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3071 | ||
3072 | return found; | |
3073 | } | |
3074 | ||
8edfe269 DJ |
3075 | /* Look through the currently pushed targets. If none of them will |
3076 | be able to restart the currently running process, issue an error | |
3077 | message. */ | |
3078 | ||
3079 | void | |
3080 | target_require_runnable (void) | |
3081 | { | |
3082 | struct target_ops *t; | |
3083 | ||
3084 | for (t = target_stack; t != NULL; t = t->beneath) | |
3085 | { | |
3086 | /* If this target knows how to create a new program, then | |
3087 | assume we will still be able to after killing the current | |
3088 | one. Either killing and mourning will not pop T, or else | |
3089 | find_default_run_target will find it again. */ | |
3090 | if (t->to_create_inferior != NULL) | |
3091 | return; | |
3092 | ||
3093 | /* Do not worry about thread_stratum targets that can not | |
3094 | create inferiors. Assume they will be pushed again if | |
3095 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3096 | if (t->to_stratum == thread_stratum |
3097 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3098 | continue; |
3099 | ||
3e43a32a MS |
3100 | error (_("The \"%s\" target does not support \"run\". " |
3101 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3102 | t->to_shortname); |
3103 | } | |
3104 | ||
3105 | /* This function is only called if the target is running. In that | |
3106 | case there should have been a process_stratum target and it | |
c378eb4e | 3107 | should either know how to create inferiors, or not... */ |
9b20d036 | 3108 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3109 | } |
3110 | ||
c906108c SS |
3111 | /* Look through the list of possible targets for a target that can |
3112 | execute a run or attach command without any other data. This is | |
3113 | used to locate the default process stratum. | |
3114 | ||
5f667f2d PA |
3115 | If DO_MESG is not NULL, the result is always valid (error() is |
3116 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3117 | |
3118 | static struct target_ops * | |
fba45db2 | 3119 | find_default_run_target (char *do_mesg) |
c906108c SS |
3120 | { |
3121 | struct target_ops **t; | |
3122 | struct target_ops *runable = NULL; | |
3123 | int count; | |
3124 | ||
3125 | count = 0; | |
3126 | ||
3127 | for (t = target_structs; t < target_structs + target_struct_size; | |
3128 | ++t) | |
3129 | { | |
c5aa993b | 3130 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3131 | { |
3132 | runable = *t; | |
3133 | ++count; | |
3134 | } | |
3135 | } | |
3136 | ||
3137 | if (count != 1) | |
5f667f2d PA |
3138 | { |
3139 | if (do_mesg) | |
3140 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3141 | else | |
3142 | return NULL; | |
3143 | } | |
c906108c SS |
3144 | |
3145 | return runable; | |
3146 | } | |
3147 | ||
3148 | void | |
136d6dae | 3149 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3150 | { |
3151 | struct target_ops *t; | |
3152 | ||
c5aa993b | 3153 | t = find_default_run_target ("attach"); |
136d6dae | 3154 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3155 | return; |
3156 | } | |
3157 | ||
c906108c | 3158 | void |
136d6dae VP |
3159 | find_default_create_inferior (struct target_ops *ops, |
3160 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3161 | int from_tty) |
c906108c SS |
3162 | { |
3163 | struct target_ops *t; | |
3164 | ||
c5aa993b | 3165 | t = find_default_run_target ("run"); |
136d6dae | 3166 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3167 | return; |
3168 | } | |
3169 | ||
2c0b251b | 3170 | static int |
6a109b6b | 3171 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
3172 | { |
3173 | struct target_ops *t; | |
3174 | ||
5f667f2d PA |
3175 | /* This may be called before the target is pushed on the stack; |
3176 | look for the default process stratum. If there's none, gdb isn't | |
3177 | configured with a native debugger, and target remote isn't | |
3178 | connected yet. */ | |
3179 | t = find_default_run_target (NULL); | |
6b84065d | 3180 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 3181 | return (t->to_can_async_p) (t); |
b84876c2 PA |
3182 | return 0; |
3183 | } | |
3184 | ||
2c0b251b | 3185 | static int |
6a109b6b | 3186 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
3187 | { |
3188 | struct target_ops *t; | |
3189 | ||
5f667f2d PA |
3190 | /* This may be called before the target is pushed on the stack; |
3191 | look for the default process stratum. If there's none, gdb isn't | |
3192 | configured with a native debugger, and target remote isn't | |
3193 | connected yet. */ | |
3194 | t = find_default_run_target (NULL); | |
6b84065d | 3195 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 3196 | return (t->to_is_async_p) (t); |
b84876c2 PA |
3197 | return 0; |
3198 | } | |
3199 | ||
2c0b251b | 3200 | static int |
9908b566 VP |
3201 | find_default_supports_non_stop (void) |
3202 | { | |
3203 | struct target_ops *t; | |
3204 | ||
3205 | t = find_default_run_target (NULL); | |
3206 | if (t && t->to_supports_non_stop) | |
3207 | return (t->to_supports_non_stop) (); | |
3208 | return 0; | |
3209 | } | |
3210 | ||
3211 | int | |
2c0b251b | 3212 | target_supports_non_stop (void) |
9908b566 VP |
3213 | { |
3214 | struct target_ops *t; | |
5d502164 | 3215 | |
9908b566 VP |
3216 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3217 | if (t->to_supports_non_stop) | |
3218 | return t->to_supports_non_stop (); | |
3219 | ||
3220 | return 0; | |
3221 | } | |
3222 | ||
145b16a9 UW |
3223 | /* Implement the "info proc" command. */ |
3224 | ||
451b7c33 | 3225 | int |
145b16a9 UW |
3226 | target_info_proc (char *args, enum info_proc_what what) |
3227 | { | |
3228 | struct target_ops *t; | |
3229 | ||
3230 | /* If we're already connected to something that can get us OS | |
3231 | related data, use it. Otherwise, try using the native | |
3232 | target. */ | |
3233 | if (current_target.to_stratum >= process_stratum) | |
3234 | t = current_target.beneath; | |
3235 | else | |
3236 | t = find_default_run_target (NULL); | |
3237 | ||
3238 | for (; t != NULL; t = t->beneath) | |
3239 | { | |
3240 | if (t->to_info_proc != NULL) | |
3241 | { | |
3242 | t->to_info_proc (t, args, what); | |
3243 | ||
3244 | if (targetdebug) | |
3245 | fprintf_unfiltered (gdb_stdlog, | |
3246 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3247 | ||
451b7c33 | 3248 | return 1; |
145b16a9 UW |
3249 | } |
3250 | } | |
3251 | ||
451b7c33 | 3252 | return 0; |
145b16a9 UW |
3253 | } |
3254 | ||
03583c20 UW |
3255 | static int |
3256 | find_default_supports_disable_randomization (void) | |
3257 | { | |
3258 | struct target_ops *t; | |
3259 | ||
3260 | t = find_default_run_target (NULL); | |
3261 | if (t && t->to_supports_disable_randomization) | |
3262 | return (t->to_supports_disable_randomization) (); | |
3263 | return 0; | |
3264 | } | |
3265 | ||
3266 | int | |
3267 | target_supports_disable_randomization (void) | |
3268 | { | |
3269 | struct target_ops *t; | |
3270 | ||
3271 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3272 | if (t->to_supports_disable_randomization) | |
3273 | return t->to_supports_disable_randomization (); | |
3274 | ||
3275 | return 0; | |
3276 | } | |
9908b566 | 3277 | |
07e059b5 VP |
3278 | char * |
3279 | target_get_osdata (const char *type) | |
3280 | { | |
07e059b5 VP |
3281 | struct target_ops *t; |
3282 | ||
739ef7fb PA |
3283 | /* If we're already connected to something that can get us OS |
3284 | related data, use it. Otherwise, try using the native | |
3285 | target. */ | |
3286 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3287 | t = current_target.beneath; |
739ef7fb PA |
3288 | else |
3289 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3290 | |
3291 | if (!t) | |
3292 | return NULL; | |
3293 | ||
6d097e65 | 3294 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3295 | } |
3296 | ||
6c95b8df PA |
3297 | /* Determine the current address space of thread PTID. */ |
3298 | ||
3299 | struct address_space * | |
3300 | target_thread_address_space (ptid_t ptid) | |
3301 | { | |
c0694254 | 3302 | struct address_space *aspace; |
6c95b8df | 3303 | struct inferior *inf; |
c0694254 PA |
3304 | struct target_ops *t; |
3305 | ||
3306 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3307 | { | |
3308 | if (t->to_thread_address_space != NULL) | |
3309 | { | |
3310 | aspace = t->to_thread_address_space (t, ptid); | |
3311 | gdb_assert (aspace); | |
6c95b8df | 3312 | |
c0694254 PA |
3313 | if (targetdebug) |
3314 | fprintf_unfiltered (gdb_stdlog, | |
3315 | "target_thread_address_space (%s) = %d\n", | |
3316 | target_pid_to_str (ptid), | |
3317 | address_space_num (aspace)); | |
3318 | return aspace; | |
3319 | } | |
3320 | } | |
6c95b8df PA |
3321 | |
3322 | /* Fall-back to the "main" address space of the inferior. */ | |
3323 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3324 | ||
3325 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3326 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3327 | _("Can't determine the current " |
3328 | "address space of thread %s\n"), | |
6c95b8df PA |
3329 | target_pid_to_str (ptid)); |
3330 | ||
3331 | return inf->aspace; | |
3332 | } | |
3333 | ||
7313baad UW |
3334 | |
3335 | /* Target file operations. */ | |
3336 | ||
3337 | static struct target_ops * | |
3338 | default_fileio_target (void) | |
3339 | { | |
3340 | /* If we're already connected to something that can perform | |
3341 | file I/O, use it. Otherwise, try using the native target. */ | |
3342 | if (current_target.to_stratum >= process_stratum) | |
3343 | return current_target.beneath; | |
3344 | else | |
3345 | return find_default_run_target ("file I/O"); | |
3346 | } | |
3347 | ||
3348 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3349 | target file descriptor, or -1 if an error occurs (and set | |
3350 | *TARGET_ERRNO). */ | |
3351 | int | |
3352 | target_fileio_open (const char *filename, int flags, int mode, | |
3353 | int *target_errno) | |
3354 | { | |
3355 | struct target_ops *t; | |
3356 | ||
3357 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3358 | { | |
3359 | if (t->to_fileio_open != NULL) | |
3360 | { | |
3361 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3362 | ||
3363 | if (targetdebug) | |
3364 | fprintf_unfiltered (gdb_stdlog, | |
3365 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3366 | filename, flags, mode, | |
3367 | fd, fd != -1 ? 0 : *target_errno); | |
3368 | return fd; | |
3369 | } | |
3370 | } | |
3371 | ||
3372 | *target_errno = FILEIO_ENOSYS; | |
3373 | return -1; | |
3374 | } | |
3375 | ||
3376 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3377 | Return the number of bytes written, or -1 if an error occurs | |
3378 | (and set *TARGET_ERRNO). */ | |
3379 | int | |
3380 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3381 | ULONGEST offset, int *target_errno) | |
3382 | { | |
3383 | struct target_ops *t; | |
3384 | ||
3385 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3386 | { | |
3387 | if (t->to_fileio_pwrite != NULL) | |
3388 | { | |
3389 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3390 | target_errno); | |
3391 | ||
3392 | if (targetdebug) | |
3393 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3394 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3395 | "= %d (%d)\n", |
a71b5a38 | 3396 | fd, len, pulongest (offset), |
7313baad UW |
3397 | ret, ret != -1 ? 0 : *target_errno); |
3398 | return ret; | |
3399 | } | |
3400 | } | |
3401 | ||
3402 | *target_errno = FILEIO_ENOSYS; | |
3403 | return -1; | |
3404 | } | |
3405 | ||
3406 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3407 | Return the number of bytes read, or -1 if an error occurs | |
3408 | (and set *TARGET_ERRNO). */ | |
3409 | int | |
3410 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3411 | ULONGEST offset, int *target_errno) | |
3412 | { | |
3413 | struct target_ops *t; | |
3414 | ||
3415 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3416 | { | |
3417 | if (t->to_fileio_pread != NULL) | |
3418 | { | |
3419 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3420 | target_errno); | |
3421 | ||
3422 | if (targetdebug) | |
3423 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3424 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3425 | "= %d (%d)\n", |
a71b5a38 | 3426 | fd, len, pulongest (offset), |
7313baad UW |
3427 | ret, ret != -1 ? 0 : *target_errno); |
3428 | return ret; | |
3429 | } | |
3430 | } | |
3431 | ||
3432 | *target_errno = FILEIO_ENOSYS; | |
3433 | return -1; | |
3434 | } | |
3435 | ||
3436 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3437 | (and set *TARGET_ERRNO). */ | |
3438 | int | |
3439 | target_fileio_close (int fd, int *target_errno) | |
3440 | { | |
3441 | struct target_ops *t; | |
3442 | ||
3443 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3444 | { | |
3445 | if (t->to_fileio_close != NULL) | |
3446 | { | |
3447 | int ret = t->to_fileio_close (fd, target_errno); | |
3448 | ||
3449 | if (targetdebug) | |
3450 | fprintf_unfiltered (gdb_stdlog, | |
3451 | "target_fileio_close (%d) = %d (%d)\n", | |
3452 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3453 | return ret; | |
3454 | } | |
3455 | } | |
3456 | ||
3457 | *target_errno = FILEIO_ENOSYS; | |
3458 | return -1; | |
3459 | } | |
3460 | ||
3461 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3462 | occurs (and set *TARGET_ERRNO). */ | |
3463 | int | |
3464 | target_fileio_unlink (const char *filename, int *target_errno) | |
3465 | { | |
3466 | struct target_ops *t; | |
3467 | ||
3468 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3469 | { | |
3470 | if (t->to_fileio_unlink != NULL) | |
3471 | { | |
3472 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3473 | ||
3474 | if (targetdebug) | |
3475 | fprintf_unfiltered (gdb_stdlog, | |
3476 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3477 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3478 | return ret; | |
3479 | } | |
3480 | } | |
3481 | ||
3482 | *target_errno = FILEIO_ENOSYS; | |
3483 | return -1; | |
3484 | } | |
3485 | ||
b9e7b9c3 UW |
3486 | /* Read value of symbolic link FILENAME on the target. Return a |
3487 | null-terminated string allocated via xmalloc, or NULL if an error | |
3488 | occurs (and set *TARGET_ERRNO). */ | |
3489 | char * | |
3490 | target_fileio_readlink (const char *filename, int *target_errno) | |
3491 | { | |
3492 | struct target_ops *t; | |
3493 | ||
3494 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3495 | { | |
3496 | if (t->to_fileio_readlink != NULL) | |
3497 | { | |
3498 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3499 | ||
3500 | if (targetdebug) | |
3501 | fprintf_unfiltered (gdb_stdlog, | |
3502 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3503 | filename, ret? ret : "(nil)", | |
3504 | ret? 0 : *target_errno); | |
3505 | return ret; | |
3506 | } | |
3507 | } | |
3508 | ||
3509 | *target_errno = FILEIO_ENOSYS; | |
3510 | return NULL; | |
3511 | } | |
3512 | ||
7313baad UW |
3513 | static void |
3514 | target_fileio_close_cleanup (void *opaque) | |
3515 | { | |
3516 | int fd = *(int *) opaque; | |
3517 | int target_errno; | |
3518 | ||
3519 | target_fileio_close (fd, &target_errno); | |
3520 | } | |
3521 | ||
3522 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3523 | return the size of the transferred data. PADDING additional bytes are | |
3524 | available in *BUF_P. This is a helper function for | |
3525 | target_fileio_read_alloc; see the declaration of that function for more | |
3526 | information. */ | |
3527 | ||
3528 | static LONGEST | |
3529 | target_fileio_read_alloc_1 (const char *filename, | |
3530 | gdb_byte **buf_p, int padding) | |
3531 | { | |
3532 | struct cleanup *close_cleanup; | |
3533 | size_t buf_alloc, buf_pos; | |
3534 | gdb_byte *buf; | |
3535 | LONGEST n; | |
3536 | int fd; | |
3537 | int target_errno; | |
3538 | ||
3539 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3540 | if (fd == -1) | |
3541 | return -1; | |
3542 | ||
3543 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3544 | ||
3545 | /* Start by reading up to 4K at a time. The target will throttle | |
3546 | this number down if necessary. */ | |
3547 | buf_alloc = 4096; | |
3548 | buf = xmalloc (buf_alloc); | |
3549 | buf_pos = 0; | |
3550 | while (1) | |
3551 | { | |
3552 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3553 | buf_alloc - buf_pos - padding, buf_pos, | |
3554 | &target_errno); | |
3555 | if (n < 0) | |
3556 | { | |
3557 | /* An error occurred. */ | |
3558 | do_cleanups (close_cleanup); | |
3559 | xfree (buf); | |
3560 | return -1; | |
3561 | } | |
3562 | else if (n == 0) | |
3563 | { | |
3564 | /* Read all there was. */ | |
3565 | do_cleanups (close_cleanup); | |
3566 | if (buf_pos == 0) | |
3567 | xfree (buf); | |
3568 | else | |
3569 | *buf_p = buf; | |
3570 | return buf_pos; | |
3571 | } | |
3572 | ||
3573 | buf_pos += n; | |
3574 | ||
3575 | /* If the buffer is filling up, expand it. */ | |
3576 | if (buf_alloc < buf_pos * 2) | |
3577 | { | |
3578 | buf_alloc *= 2; | |
3579 | buf = xrealloc (buf, buf_alloc); | |
3580 | } | |
3581 | ||
3582 | QUIT; | |
3583 | } | |
3584 | } | |
3585 | ||
3586 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3587 | the size of the transferred data. See the declaration in "target.h" | |
3588 | function for more information about the return value. */ | |
3589 | ||
3590 | LONGEST | |
3591 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3592 | { | |
3593 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3594 | } | |
3595 | ||
3596 | /* Read target file FILENAME. The result is NUL-terminated and | |
3597 | returned as a string, allocated using xmalloc. If an error occurs | |
3598 | or the transfer is unsupported, NULL is returned. Empty objects | |
3599 | are returned as allocated but empty strings. A warning is issued | |
3600 | if the result contains any embedded NUL bytes. */ | |
3601 | ||
3602 | char * | |
3603 | target_fileio_read_stralloc (const char *filename) | |
3604 | { | |
39086a0e PA |
3605 | gdb_byte *buffer; |
3606 | char *bufstr; | |
7313baad UW |
3607 | LONGEST i, transferred; |
3608 | ||
39086a0e PA |
3609 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3610 | bufstr = (char *) buffer; | |
7313baad UW |
3611 | |
3612 | if (transferred < 0) | |
3613 | return NULL; | |
3614 | ||
3615 | if (transferred == 0) | |
3616 | return xstrdup (""); | |
3617 | ||
39086a0e | 3618 | bufstr[transferred] = 0; |
7313baad UW |
3619 | |
3620 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3621 | for (i = strlen (bufstr); i < transferred; i++) |
3622 | if (bufstr[i] != 0) | |
7313baad UW |
3623 | { |
3624 | warning (_("target file %s " | |
3625 | "contained unexpected null characters"), | |
3626 | filename); | |
3627 | break; | |
3628 | } | |
3629 | ||
39086a0e | 3630 | return bufstr; |
7313baad UW |
3631 | } |
3632 | ||
3633 | ||
e0d24f8d WZ |
3634 | static int |
3635 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3636 | { | |
f5656ead | 3637 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3638 | } |
3639 | ||
5009afc5 AS |
3640 | static int |
3641 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3642 | CORE_ADDR addr, | |
3643 | CORE_ADDR start, int length) | |
3644 | { | |
3645 | return addr >= start && addr < start + length; | |
3646 | } | |
3647 | ||
c2250ad1 UW |
3648 | static struct gdbarch * |
3649 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3650 | { | |
f5656ead | 3651 | return target_gdbarch (); |
c2250ad1 UW |
3652 | } |
3653 | ||
c906108c | 3654 | static int |
fba45db2 | 3655 | return_zero (void) |
c906108c SS |
3656 | { |
3657 | return 0; | |
3658 | } | |
3659 | ||
3660 | static int | |
fba45db2 | 3661 | return_one (void) |
c906108c SS |
3662 | { |
3663 | return 1; | |
3664 | } | |
3665 | ||
ccaa32c7 GS |
3666 | static int |
3667 | return_minus_one (void) | |
3668 | { | |
3669 | return -1; | |
3670 | } | |
3671 | ||
1b67eb02 AS |
3672 | static void * |
3673 | return_null (void) | |
3674 | { | |
3675 | return 0; | |
3676 | } | |
3677 | ||
ed9a39eb JM |
3678 | /* |
3679 | * Find the next target down the stack from the specified target. | |
3680 | */ | |
3681 | ||
3682 | struct target_ops * | |
fba45db2 | 3683 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3684 | { |
258b763a | 3685 | return t->beneath; |
ed9a39eb JM |
3686 | } |
3687 | ||
8b06beed TT |
3688 | /* See target.h. */ |
3689 | ||
3690 | struct target_ops * | |
3691 | find_target_at (enum strata stratum) | |
3692 | { | |
3693 | struct target_ops *t; | |
3694 | ||
3695 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3696 | if (t->to_stratum == stratum) | |
3697 | return t; | |
3698 | ||
3699 | return NULL; | |
3700 | } | |
3701 | ||
c906108c SS |
3702 | \f |
3703 | /* The inferior process has died. Long live the inferior! */ | |
3704 | ||
3705 | void | |
fba45db2 | 3706 | generic_mourn_inferior (void) |
c906108c | 3707 | { |
7f9f62ba | 3708 | ptid_t ptid; |
c906108c | 3709 | |
7f9f62ba | 3710 | ptid = inferior_ptid; |
39f77062 | 3711 | inferior_ptid = null_ptid; |
7f9f62ba | 3712 | |
f59f708a PA |
3713 | /* Mark breakpoints uninserted in case something tries to delete a |
3714 | breakpoint while we delete the inferior's threads (which would | |
3715 | fail, since the inferior is long gone). */ | |
3716 | mark_breakpoints_out (); | |
3717 | ||
7f9f62ba PA |
3718 | if (!ptid_equal (ptid, null_ptid)) |
3719 | { | |
3720 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3721 | exit_inferior (pid); |
7f9f62ba PA |
3722 | } |
3723 | ||
f59f708a PA |
3724 | /* Note this wipes step-resume breakpoints, so needs to be done |
3725 | after exit_inferior, which ends up referencing the step-resume | |
3726 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3727 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3728 | |
c906108c SS |
3729 | registers_changed (); |
3730 | ||
c906108c SS |
3731 | reopen_exec_file (); |
3732 | reinit_frame_cache (); | |
3733 | ||
9a4105ab AC |
3734 | if (deprecated_detach_hook) |
3735 | deprecated_detach_hook (); | |
c906108c SS |
3736 | } |
3737 | \f | |
fd0a2a6f MK |
3738 | /* Convert a normal process ID to a string. Returns the string in a |
3739 | static buffer. */ | |
c906108c SS |
3740 | |
3741 | char * | |
39f77062 | 3742 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3743 | { |
fd0a2a6f | 3744 | static char buf[32]; |
c906108c | 3745 | |
5fff8fc0 | 3746 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3747 | return buf; |
3748 | } | |
3749 | ||
2c0b251b | 3750 | static char * |
117de6a9 PA |
3751 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3752 | { | |
3753 | return normal_pid_to_str (ptid); | |
3754 | } | |
3755 | ||
9b4eba8e HZ |
3756 | /* Error-catcher for target_find_memory_regions. */ |
3757 | static int | |
b8edc417 | 3758 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3759 | { |
9b4eba8e | 3760 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3761 | return 0; |
3762 | } | |
3763 | ||
9b4eba8e HZ |
3764 | /* Error-catcher for target_make_corefile_notes. */ |
3765 | static char * | |
3766 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3767 | { |
9b4eba8e | 3768 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3769 | return NULL; |
3770 | } | |
3771 | ||
6b04bdb7 MS |
3772 | /* Error-catcher for target_get_bookmark. */ |
3773 | static gdb_byte * | |
3774 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3775 | { | |
3776 | tcomplain (); | |
3777 | return NULL; | |
3778 | } | |
3779 | ||
3780 | /* Error-catcher for target_goto_bookmark. */ | |
3781 | static void | |
3782 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3783 | { | |
3784 | tcomplain (); | |
3785 | } | |
3786 | ||
c906108c SS |
3787 | /* Set up the handful of non-empty slots needed by the dummy target |
3788 | vector. */ | |
3789 | ||
3790 | static void | |
fba45db2 | 3791 | init_dummy_target (void) |
c906108c SS |
3792 | { |
3793 | dummy_target.to_shortname = "None"; | |
3794 | dummy_target.to_longname = "None"; | |
3795 | dummy_target.to_doc = ""; | |
3796 | dummy_target.to_attach = find_default_attach; | |
136d6dae | 3797 | dummy_target.to_detach = |
52554a0e | 3798 | (void (*)(struct target_ops *, const char *, int))target_ignore; |
c906108c | 3799 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3800 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3801 | dummy_target.to_supports_disable_randomization |
3802 | = find_default_supports_disable_randomization; | |
117de6a9 | 3803 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3804 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3805 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3806 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3807 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3808 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
c35b1492 PA |
3809 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3810 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3811 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3812 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3813 | dummy_target.to_has_execution |
3814 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3815 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3816 | |
3817 | install_dummy_methods (&dummy_target); | |
c906108c | 3818 | } |
c906108c | 3819 | \f |
c906108c | 3820 | static void |
fba45db2 | 3821 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3822 | { |
3823 | debug_target.to_open (args, from_tty); | |
3824 | ||
96baa820 | 3825 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3826 | } |
3827 | ||
f1c07ab0 | 3828 | void |
460014f5 | 3829 | target_close (struct target_ops *targ) |
f1c07ab0 | 3830 | { |
7fdc1521 TT |
3831 | gdb_assert (!target_is_pushed (targ)); |
3832 | ||
f1c07ab0 | 3833 | if (targ->to_xclose != NULL) |
460014f5 | 3834 | targ->to_xclose (targ); |
f1c07ab0 | 3835 | else if (targ->to_close != NULL) |
460014f5 | 3836 | targ->to_close (); |
947b8855 PA |
3837 | |
3838 | if (targetdebug) | |
460014f5 | 3839 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3840 | } |
3841 | ||
136d6dae VP |
3842 | void |
3843 | target_attach (char *args, int from_tty) | |
3844 | { | |
3845 | struct target_ops *t; | |
5d502164 | 3846 | |
136d6dae VP |
3847 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3848 | { | |
3849 | if (t->to_attach != NULL) | |
3850 | { | |
3851 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3852 | if (targetdebug) |
3853 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3854 | args, from_tty); | |
136d6dae VP |
3855 | return; |
3856 | } | |
3857 | } | |
3858 | ||
3859 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3860 | _("could not find a target to attach")); |
136d6dae VP |
3861 | } |
3862 | ||
28439f5e PA |
3863 | int |
3864 | target_thread_alive (ptid_t ptid) | |
c906108c | 3865 | { |
28439f5e | 3866 | struct target_ops *t; |
5d502164 | 3867 | |
28439f5e PA |
3868 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3869 | { | |
3870 | if (t->to_thread_alive != NULL) | |
3871 | { | |
3872 | int retval; | |
c906108c | 3873 | |
28439f5e PA |
3874 | retval = t->to_thread_alive (t, ptid); |
3875 | if (targetdebug) | |
3876 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3877 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3878 | |
3879 | return retval; | |
3880 | } | |
3881 | } | |
3882 | ||
3883 | return 0; | |
3884 | } | |
3885 | ||
3886 | void | |
3887 | target_find_new_threads (void) | |
3888 | { | |
3889 | struct target_ops *t; | |
5d502164 | 3890 | |
28439f5e PA |
3891 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3892 | { | |
3893 | if (t->to_find_new_threads != NULL) | |
3894 | { | |
3895 | t->to_find_new_threads (t); | |
3896 | if (targetdebug) | |
3897 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3898 | ||
3899 | return; | |
3900 | } | |
3901 | } | |
c906108c SS |
3902 | } |
3903 | ||
d914c394 SS |
3904 | void |
3905 | target_stop (ptid_t ptid) | |
3906 | { | |
3907 | if (!may_stop) | |
3908 | { | |
3909 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3910 | return; | |
3911 | } | |
3912 | ||
3913 | (*current_target.to_stop) (ptid); | |
3914 | } | |
3915 | ||
c906108c | 3916 | static void |
28439f5e | 3917 | debug_to_post_attach (int pid) |
c906108c | 3918 | { |
28439f5e | 3919 | debug_target.to_post_attach (pid); |
c906108c | 3920 | |
28439f5e | 3921 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3922 | } |
3923 | ||
09826ec5 PA |
3924 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3925 | result. The LIST incoming argument is released. */ | |
3926 | ||
3927 | static char * | |
3928 | str_comma_list_concat_elem (char *list, const char *elem) | |
3929 | { | |
3930 | if (list == NULL) | |
3931 | return xstrdup (elem); | |
3932 | else | |
3933 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3934 | } | |
3935 | ||
3936 | /* Helper for target_options_to_string. If OPT is present in | |
3937 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3938 | Returns the new resulting string. OPT is removed from | |
3939 | TARGET_OPTIONS. */ | |
3940 | ||
3941 | static char * | |
3942 | do_option (int *target_options, char *ret, | |
3943 | int opt, char *opt_str) | |
3944 | { | |
3945 | if ((*target_options & opt) != 0) | |
3946 | { | |
3947 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3948 | *target_options &= ~opt; | |
3949 | } | |
3950 | ||
3951 | return ret; | |
3952 | } | |
3953 | ||
3954 | char * | |
3955 | target_options_to_string (int target_options) | |
3956 | { | |
3957 | char *ret = NULL; | |
3958 | ||
3959 | #define DO_TARG_OPTION(OPT) \ | |
3960 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3961 | ||
3962 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3963 | ||
3964 | if (target_options != 0) | |
3965 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3966 | ||
3967 | if (ret == NULL) | |
3968 | ret = xstrdup (""); | |
3969 | return ret; | |
3970 | } | |
3971 | ||
bf0c5130 | 3972 | static void |
56be3814 UW |
3973 | debug_print_register (const char * func, |
3974 | struct regcache *regcache, int regno) | |
bf0c5130 | 3975 | { |
f8d29908 | 3976 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3977 | |
bf0c5130 | 3978 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3979 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3980 | && gdbarch_register_name (gdbarch, regno) != NULL |
3981 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3982 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3983 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3984 | else |
3985 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3986 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3987 | { |
e17a4113 | 3988 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3989 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3990 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3991 | |
0ff58721 | 3992 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3993 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3994 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3995 | { |
3996 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3997 | } | |
81c4a259 | 3998 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3999 | { |
e17a4113 | 4000 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 4001 | |
0b1553bc UW |
4002 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
4003 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
4004 | } |
4005 | } | |
4006 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4007 | } | |
4008 | ||
28439f5e PA |
4009 | void |
4010 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 4011 | { |
28439f5e | 4012 | struct target_ops *t; |
5d502164 | 4013 | |
28439f5e PA |
4014 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
4015 | { | |
4016 | if (t->to_fetch_registers != NULL) | |
4017 | { | |
4018 | t->to_fetch_registers (t, regcache, regno); | |
4019 | if (targetdebug) | |
4020 | debug_print_register ("target_fetch_registers", regcache, regno); | |
4021 | return; | |
4022 | } | |
4023 | } | |
c906108c SS |
4024 | } |
4025 | ||
28439f5e PA |
4026 | void |
4027 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 4028 | { |
28439f5e | 4029 | struct target_ops *t; |
5d502164 | 4030 | |
d914c394 SS |
4031 | if (!may_write_registers) |
4032 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
4033 | ||
6b84065d TT |
4034 | current_target.to_store_registers (¤t_target, regcache, regno); |
4035 | if (targetdebug) | |
28439f5e | 4036 | { |
6b84065d | 4037 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 4038 | } |
c906108c SS |
4039 | } |
4040 | ||
dc146f7c VP |
4041 | int |
4042 | target_core_of_thread (ptid_t ptid) | |
4043 | { | |
4044 | struct target_ops *t; | |
4045 | ||
4046 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4047 | { | |
4048 | if (t->to_core_of_thread != NULL) | |
4049 | { | |
4050 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 4051 | |
dc146f7c | 4052 | if (targetdebug) |
3e43a32a MS |
4053 | fprintf_unfiltered (gdb_stdlog, |
4054 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 4055 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
4056 | return retval; |
4057 | } | |
4058 | } | |
4059 | ||
4060 | return -1; | |
4061 | } | |
4062 | ||
4a5e7a5b PA |
4063 | int |
4064 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4065 | { | |
4066 | struct target_ops *t; | |
4067 | ||
4068 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4069 | { | |
4070 | if (t->to_verify_memory != NULL) | |
4071 | { | |
4072 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4073 | |
4a5e7a5b | 4074 | if (targetdebug) |
3e43a32a MS |
4075 | fprintf_unfiltered (gdb_stdlog, |
4076 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4077 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4078 | pulongest (size), |
4079 | retval); | |
4080 | return retval; | |
4081 | } | |
4082 | } | |
4083 | ||
4084 | tcomplain (); | |
4085 | } | |
4086 | ||
9c06b0b4 TJB |
4087 | /* The documentation for this function is in its prototype declaration in |
4088 | target.h. */ | |
4089 | ||
4090 | int | |
4091 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4092 | { | |
4093 | struct target_ops *t; | |
4094 | ||
4095 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4096 | if (t->to_insert_mask_watchpoint != NULL) | |
4097 | { | |
4098 | int ret; | |
4099 | ||
4100 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4101 | ||
4102 | if (targetdebug) | |
4103 | fprintf_unfiltered (gdb_stdlog, "\ | |
4104 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4105 | core_addr_to_string (addr), | |
4106 | core_addr_to_string (mask), rw, ret); | |
4107 | ||
4108 | return ret; | |
4109 | } | |
4110 | ||
4111 | return 1; | |
4112 | } | |
4113 | ||
4114 | /* The documentation for this function is in its prototype declaration in | |
4115 | target.h. */ | |
4116 | ||
4117 | int | |
4118 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4119 | { | |
4120 | struct target_ops *t; | |
4121 | ||
4122 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4123 | if (t->to_remove_mask_watchpoint != NULL) | |
4124 | { | |
4125 | int ret; | |
4126 | ||
4127 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4128 | ||
4129 | if (targetdebug) | |
4130 | fprintf_unfiltered (gdb_stdlog, "\ | |
4131 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4132 | core_addr_to_string (addr), | |
4133 | core_addr_to_string (mask), rw, ret); | |
4134 | ||
4135 | return ret; | |
4136 | } | |
4137 | ||
4138 | return 1; | |
4139 | } | |
4140 | ||
4141 | /* The documentation for this function is in its prototype declaration | |
4142 | in target.h. */ | |
4143 | ||
4144 | int | |
4145 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4146 | { | |
4147 | struct target_ops *t; | |
4148 | ||
4149 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4150 | if (t->to_masked_watch_num_registers != NULL) | |
4151 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4152 | ||
4153 | return -1; | |
4154 | } | |
4155 | ||
f1310107 TJB |
4156 | /* The documentation for this function is in its prototype declaration |
4157 | in target.h. */ | |
4158 | ||
4159 | int | |
4160 | target_ranged_break_num_registers (void) | |
4161 | { | |
4162 | struct target_ops *t; | |
4163 | ||
4164 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4165 | if (t->to_ranged_break_num_registers != NULL) | |
4166 | return t->to_ranged_break_num_registers (t); | |
4167 | ||
4168 | return -1; | |
4169 | } | |
4170 | ||
02d27625 MM |
4171 | /* See target.h. */ |
4172 | ||
4173 | int | |
4174 | target_supports_btrace (void) | |
4175 | { | |
4176 | struct target_ops *t; | |
4177 | ||
4178 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4179 | if (t->to_supports_btrace != NULL) | |
4180 | return t->to_supports_btrace (); | |
4181 | ||
4182 | return 0; | |
4183 | } | |
4184 | ||
4185 | /* See target.h. */ | |
4186 | ||
4187 | struct btrace_target_info * | |
4188 | target_enable_btrace (ptid_t ptid) | |
4189 | { | |
4190 | struct target_ops *t; | |
4191 | ||
4192 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4193 | if (t->to_enable_btrace != NULL) | |
4194 | return t->to_enable_btrace (ptid); | |
4195 | ||
4196 | tcomplain (); | |
4197 | return NULL; | |
4198 | } | |
4199 | ||
4200 | /* See target.h. */ | |
4201 | ||
4202 | void | |
4203 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4204 | { | |
4205 | struct target_ops *t; | |
4206 | ||
4207 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4208 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 SDJ |
4209 | { |
4210 | t->to_disable_btrace (btinfo); | |
4211 | return; | |
4212 | } | |
02d27625 MM |
4213 | |
4214 | tcomplain (); | |
4215 | } | |
4216 | ||
4217 | /* See target.h. */ | |
4218 | ||
4219 | void | |
4220 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4221 | { | |
4222 | struct target_ops *t; | |
4223 | ||
4224 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4225 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 SDJ |
4226 | { |
4227 | t->to_teardown_btrace (btinfo); | |
4228 | return; | |
4229 | } | |
02d27625 MM |
4230 | |
4231 | tcomplain (); | |
4232 | } | |
4233 | ||
4234 | /* See target.h. */ | |
4235 | ||
969c39fb MM |
4236 | enum btrace_error |
4237 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
4238 | struct btrace_target_info *btinfo, | |
02d27625 MM |
4239 | enum btrace_read_type type) |
4240 | { | |
4241 | struct target_ops *t; | |
4242 | ||
4243 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4244 | if (t->to_read_btrace != NULL) | |
969c39fb | 4245 | return t->to_read_btrace (btrace, btinfo, type); |
02d27625 MM |
4246 | |
4247 | tcomplain (); | |
969c39fb | 4248 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
4249 | } |
4250 | ||
d02ed0bb MM |
4251 | /* See target.h. */ |
4252 | ||
7c1687a9 MM |
4253 | void |
4254 | target_stop_recording (void) | |
4255 | { | |
4256 | struct target_ops *t; | |
4257 | ||
4258 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4259 | if (t->to_stop_recording != NULL) | |
4260 | { | |
4261 | t->to_stop_recording (); | |
4262 | return; | |
4263 | } | |
4264 | ||
4265 | /* This is optional. */ | |
4266 | } | |
4267 | ||
4268 | /* See target.h. */ | |
4269 | ||
d02ed0bb MM |
4270 | void |
4271 | target_info_record (void) | |
4272 | { | |
4273 | struct target_ops *t; | |
4274 | ||
4275 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4276 | if (t->to_info_record != NULL) | |
4277 | { | |
4278 | t->to_info_record (); | |
4279 | return; | |
4280 | } | |
4281 | ||
4282 | tcomplain (); | |
4283 | } | |
4284 | ||
4285 | /* See target.h. */ | |
4286 | ||
4287 | void | |
85e1311a | 4288 | target_save_record (const char *filename) |
d02ed0bb MM |
4289 | { |
4290 | struct target_ops *t; | |
4291 | ||
4292 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4293 | if (t->to_save_record != NULL) | |
4294 | { | |
4295 | t->to_save_record (filename); | |
4296 | return; | |
4297 | } | |
4298 | ||
4299 | tcomplain (); | |
4300 | } | |
4301 | ||
4302 | /* See target.h. */ | |
4303 | ||
4304 | int | |
4305 | target_supports_delete_record (void) | |
4306 | { | |
4307 | struct target_ops *t; | |
4308 | ||
4309 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4310 | if (t->to_delete_record != NULL) | |
4311 | return 1; | |
4312 | ||
4313 | return 0; | |
4314 | } | |
4315 | ||
4316 | /* See target.h. */ | |
4317 | ||
4318 | void | |
4319 | target_delete_record (void) | |
4320 | { | |
4321 | struct target_ops *t; | |
4322 | ||
4323 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4324 | if (t->to_delete_record != NULL) | |
4325 | { | |
4326 | t->to_delete_record (); | |
4327 | return; | |
4328 | } | |
4329 | ||
4330 | tcomplain (); | |
4331 | } | |
4332 | ||
4333 | /* See target.h. */ | |
4334 | ||
4335 | int | |
4336 | target_record_is_replaying (void) | |
4337 | { | |
4338 | struct target_ops *t; | |
4339 | ||
4340 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4341 | if (t->to_record_is_replaying != NULL) | |
4342 | return t->to_record_is_replaying (); | |
4343 | ||
4344 | return 0; | |
4345 | } | |
4346 | ||
4347 | /* See target.h. */ | |
4348 | ||
4349 | void | |
4350 | target_goto_record_begin (void) | |
4351 | { | |
4352 | struct target_ops *t; | |
4353 | ||
4354 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4355 | if (t->to_goto_record_begin != NULL) | |
4356 | { | |
4357 | t->to_goto_record_begin (); | |
4358 | return; | |
4359 | } | |
4360 | ||
4361 | tcomplain (); | |
4362 | } | |
4363 | ||
4364 | /* See target.h. */ | |
4365 | ||
4366 | void | |
4367 | target_goto_record_end (void) | |
4368 | { | |
4369 | struct target_ops *t; | |
4370 | ||
4371 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4372 | if (t->to_goto_record_end != NULL) | |
4373 | { | |
4374 | t->to_goto_record_end (); | |
4375 | return; | |
4376 | } | |
4377 | ||
4378 | tcomplain (); | |
4379 | } | |
4380 | ||
4381 | /* See target.h. */ | |
4382 | ||
4383 | void | |
4384 | target_goto_record (ULONGEST insn) | |
4385 | { | |
4386 | struct target_ops *t; | |
4387 | ||
4388 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4389 | if (t->to_goto_record != NULL) | |
4390 | { | |
4391 | t->to_goto_record (insn); | |
4392 | return; | |
4393 | } | |
4394 | ||
4395 | tcomplain (); | |
4396 | } | |
4397 | ||
67c86d06 MM |
4398 | /* See target.h. */ |
4399 | ||
4400 | void | |
4401 | target_insn_history (int size, int flags) | |
4402 | { | |
4403 | struct target_ops *t; | |
4404 | ||
4405 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4406 | if (t->to_insn_history != NULL) | |
4407 | { | |
4408 | t->to_insn_history (size, flags); | |
4409 | return; | |
4410 | } | |
4411 | ||
4412 | tcomplain (); | |
4413 | } | |
4414 | ||
4415 | /* See target.h. */ | |
4416 | ||
4417 | void | |
4418 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4419 | { | |
4420 | struct target_ops *t; | |
4421 | ||
4422 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4423 | if (t->to_insn_history_from != NULL) | |
4424 | { | |
4425 | t->to_insn_history_from (from, size, flags); | |
4426 | return; | |
4427 | } | |
4428 | ||
4429 | tcomplain (); | |
4430 | } | |
4431 | ||
4432 | /* See target.h. */ | |
4433 | ||
4434 | void | |
4435 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4436 | { | |
4437 | struct target_ops *t; | |
4438 | ||
4439 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4440 | if (t->to_insn_history_range != NULL) | |
4441 | { | |
4442 | t->to_insn_history_range (begin, end, flags); | |
4443 | return; | |
4444 | } | |
4445 | ||
4446 | tcomplain (); | |
4447 | } | |
4448 | ||
15984c13 MM |
4449 | /* See target.h. */ |
4450 | ||
4451 | void | |
4452 | target_call_history (int size, int flags) | |
4453 | { | |
4454 | struct target_ops *t; | |
4455 | ||
4456 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4457 | if (t->to_call_history != NULL) | |
4458 | { | |
4459 | t->to_call_history (size, flags); | |
4460 | return; | |
4461 | } | |
4462 | ||
4463 | tcomplain (); | |
4464 | } | |
4465 | ||
4466 | /* See target.h. */ | |
4467 | ||
4468 | void | |
4469 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4470 | { | |
4471 | struct target_ops *t; | |
4472 | ||
4473 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4474 | if (t->to_call_history_from != NULL) | |
4475 | { | |
4476 | t->to_call_history_from (begin, size, flags); | |
4477 | return; | |
4478 | } | |
4479 | ||
4480 | tcomplain (); | |
4481 | } | |
4482 | ||
4483 | /* See target.h. */ | |
4484 | ||
4485 | void | |
4486 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4487 | { | |
4488 | struct target_ops *t; | |
4489 | ||
4490 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4491 | if (t->to_call_history_range != NULL) | |
4492 | { | |
4493 | t->to_call_history_range (begin, end, flags); | |
4494 | return; | |
4495 | } | |
4496 | ||
4497 | tcomplain (); | |
4498 | } | |
4499 | ||
c906108c | 4500 | static void |
f32dbf8c | 4501 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4502 | { |
f32dbf8c | 4503 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4504 | |
96baa820 | 4505 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4506 | } |
4507 | ||
ea001bdc MM |
4508 | /* See target.h. */ |
4509 | ||
4510 | const struct frame_unwind * | |
4511 | target_get_unwinder (void) | |
4512 | { | |
4513 | struct target_ops *t; | |
4514 | ||
4515 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4516 | if (t->to_get_unwinder != NULL) | |
4517 | return t->to_get_unwinder; | |
4518 | ||
4519 | return NULL; | |
4520 | } | |
4521 | ||
4522 | /* See target.h. */ | |
4523 | ||
4524 | const struct frame_unwind * | |
4525 | target_get_tailcall_unwinder (void) | |
4526 | { | |
4527 | struct target_ops *t; | |
4528 | ||
4529 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4530 | if (t->to_get_tailcall_unwinder != NULL) | |
4531 | return t->to_get_tailcall_unwinder; | |
4532 | ||
4533 | return NULL; | |
4534 | } | |
4535 | ||
118e6252 MM |
4536 | /* See target.h. */ |
4537 | ||
4538 | CORE_ADDR | |
4539 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4540 | struct gdbarch *gdbarch) | |
4541 | { | |
4542 | for (; ops != NULL; ops = ops->beneath) | |
4543 | if (ops->to_decr_pc_after_break != NULL) | |
4544 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4545 | ||
4546 | return gdbarch_decr_pc_after_break (gdbarch); | |
4547 | } | |
4548 | ||
4549 | /* See target.h. */ | |
4550 | ||
4551 | CORE_ADDR | |
4552 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4553 | { | |
4554 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4555 | } | |
4556 | ||
c906108c | 4557 | static int |
961cb7b5 | 4558 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4559 | int write, struct mem_attrib *attrib, |
4560 | struct target_ops *target) | |
c906108c SS |
4561 | { |
4562 | int retval; | |
4563 | ||
c8e73a31 AC |
4564 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4565 | attrib, target); | |
c906108c | 4566 | |
96baa820 | 4567 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4568 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4569 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4570 | write ? "write" : "read", retval); |
c906108c | 4571 | |
c906108c SS |
4572 | if (retval > 0) |
4573 | { | |
4574 | int i; | |
4575 | ||
96baa820 | 4576 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4577 | for (i = 0; i < retval; i++) |
4578 | { | |
53b71562 | 4579 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4580 | { |
4581 | if (targetdebug < 2 && i > 0) | |
4582 | { | |
4583 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4584 | break; | |
4585 | } | |
4586 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4587 | } | |
2bc416ba | 4588 | |
96baa820 | 4589 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4590 | } |
4591 | } | |
4592 | ||
96baa820 | 4593 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4594 | |
4595 | return retval; | |
4596 | } | |
4597 | ||
4598 | static void | |
fba45db2 | 4599 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4600 | { |
4601 | debug_target.to_files_info (target); | |
4602 | ||
96baa820 | 4603 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4604 | } |
4605 | ||
4606 | static int | |
3db08215 | 4607 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4608 | struct bp_target_info *bp_tgt) |
c906108c SS |
4609 | { |
4610 | int retval; | |
4611 | ||
6b84065d | 4612 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4613 | |
96baa820 | 4614 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4615 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4616 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4617 | (unsigned long) retval); |
c906108c SS |
4618 | return retval; |
4619 | } | |
4620 | ||
4621 | static int | |
3db08215 | 4622 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4623 | struct bp_target_info *bp_tgt) |
c906108c SS |
4624 | { |
4625 | int retval; | |
4626 | ||
6b84065d | 4627 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4628 | |
96baa820 | 4629 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4630 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4631 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4632 | (unsigned long) retval); |
c906108c SS |
4633 | return retval; |
4634 | } | |
4635 | ||
ccaa32c7 GS |
4636 | static int |
4637 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
4638 | { | |
4639 | int retval; | |
4640 | ||
4641 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
4642 | ||
4643 | fprintf_unfiltered (gdb_stdlog, | |
4644 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4645 | (unsigned long) type, | |
4646 | (unsigned long) cnt, | |
4647 | (unsigned long) from_tty, | |
4648 | (unsigned long) retval); | |
4649 | return retval; | |
4650 | } | |
4651 | ||
e0d24f8d WZ |
4652 | static int |
4653 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
4654 | { | |
4655 | CORE_ADDR retval; | |
4656 | ||
4657 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
4658 | ||
4659 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4660 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4661 | core_addr_to_string (addr), (unsigned long) len, | |
4662 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4663 | return retval; |
4664 | } | |
4665 | ||
0cf6dd15 TJB |
4666 | static int |
4667 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
4668 | struct expression *cond) | |
4669 | { | |
4670 | int retval; | |
4671 | ||
3e43a32a MS |
4672 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
4673 | rw, cond); | |
0cf6dd15 TJB |
4674 | |
4675 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4676 | "target_can_accel_watchpoint_condition " |
4677 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4678 | core_addr_to_string (addr), len, rw, |
4679 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4680 | return retval; |
4681 | } | |
4682 | ||
ccaa32c7 | 4683 | static int |
6a109b6b | 4684 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4685 | { |
4686 | int retval; | |
4687 | ||
6a109b6b | 4688 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4689 | |
4690 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4691 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4692 | (unsigned long) retval); |
4693 | return retval; | |
4694 | } | |
4695 | ||
4aa7a7f5 JJ |
4696 | static int |
4697 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4698 | { |
4aa7a7f5 | 4699 | int retval; |
ccaa32c7 | 4700 | |
4aa7a7f5 | 4701 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4702 | |
4703 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4704 | "target_stopped_data_address ([%s]) = %ld\n", |
4705 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4706 | (unsigned long)retval); |
ccaa32c7 GS |
4707 | return retval; |
4708 | } | |
4709 | ||
5009afc5 AS |
4710 | static int |
4711 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4712 | CORE_ADDR addr, | |
4713 | CORE_ADDR start, int length) | |
4714 | { | |
4715 | int retval; | |
4716 | ||
4717 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4718 | start, length); | |
4719 | ||
4720 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4721 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4722 | core_addr_to_string (addr), core_addr_to_string (start), | |
4723 | length, retval); | |
5009afc5 AS |
4724 | return retval; |
4725 | } | |
4726 | ||
ccaa32c7 | 4727 | static int |
a6d9a66e UW |
4728 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
4729 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4730 | { |
4731 | int retval; | |
4732 | ||
a6d9a66e | 4733 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4734 | |
4735 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4736 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4737 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4738 | (unsigned long) retval); |
4739 | return retval; | |
4740 | } | |
4741 | ||
4742 | static int | |
a6d9a66e UW |
4743 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
4744 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4745 | { |
4746 | int retval; | |
4747 | ||
a6d9a66e | 4748 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4749 | |
4750 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4751 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4752 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4753 | (unsigned long) retval); |
4754 | return retval; | |
4755 | } | |
4756 | ||
4757 | static int | |
0cf6dd15 TJB |
4758 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
4759 | struct expression *cond) | |
ccaa32c7 GS |
4760 | { |
4761 | int retval; | |
4762 | ||
0cf6dd15 | 4763 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4764 | |
4765 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4766 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4767 | core_addr_to_string (addr), len, type, | |
4768 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4769 | return retval; |
4770 | } | |
4771 | ||
4772 | static int | |
0cf6dd15 TJB |
4773 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type, |
4774 | struct expression *cond) | |
ccaa32c7 GS |
4775 | { |
4776 | int retval; | |
4777 | ||
0cf6dd15 | 4778 | retval = debug_target.to_remove_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4779 | |
4780 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4781 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4782 | core_addr_to_string (addr), len, type, | |
4783 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4784 | return retval; |
4785 | } | |
4786 | ||
c906108c | 4787 | static void |
fba45db2 | 4788 | debug_to_terminal_init (void) |
c906108c SS |
4789 | { |
4790 | debug_target.to_terminal_init (); | |
4791 | ||
96baa820 | 4792 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4793 | } |
4794 | ||
4795 | static void | |
fba45db2 | 4796 | debug_to_terminal_inferior (void) |
c906108c SS |
4797 | { |
4798 | debug_target.to_terminal_inferior (); | |
4799 | ||
96baa820 | 4800 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4801 | } |
4802 | ||
4803 | static void | |
fba45db2 | 4804 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
4805 | { |
4806 | debug_target.to_terminal_ours_for_output (); | |
4807 | ||
96baa820 | 4808 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4809 | } |
4810 | ||
4811 | static void | |
fba45db2 | 4812 | debug_to_terminal_ours (void) |
c906108c SS |
4813 | { |
4814 | debug_target.to_terminal_ours (); | |
4815 | ||
96baa820 | 4816 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4817 | } |
4818 | ||
a790ad35 SC |
4819 | static void |
4820 | debug_to_terminal_save_ours (void) | |
4821 | { | |
4822 | debug_target.to_terminal_save_ours (); | |
4823 | ||
4824 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4825 | } | |
4826 | ||
c906108c | 4827 | static void |
503ebb2c | 4828 | debug_to_terminal_info (const char *arg, int from_tty) |
c906108c SS |
4829 | { |
4830 | debug_target.to_terminal_info (arg, from_tty); | |
4831 | ||
96baa820 | 4832 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4833 | from_tty); |
4834 | } | |
4835 | ||
c906108c | 4836 | static void |
fba45db2 | 4837 | debug_to_load (char *args, int from_tty) |
c906108c SS |
4838 | { |
4839 | debug_target.to_load (args, from_tty); | |
4840 | ||
96baa820 | 4841 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4842 | } |
4843 | ||
c906108c | 4844 | static void |
39f77062 | 4845 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 4846 | { |
39f77062 | 4847 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 4848 | |
96baa820 | 4849 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4850 | ptid_get_pid (ptid)); |
c906108c SS |
4851 | } |
4852 | ||
77b06cd7 | 4853 | static int |
fba45db2 | 4854 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 4855 | { |
77b06cd7 TJB |
4856 | int retval; |
4857 | ||
4858 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
4859 | ||
4860 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4861 | pid, retval); | |
c906108c | 4862 | |
77b06cd7 | 4863 | return retval; |
c906108c SS |
4864 | } |
4865 | ||
4866 | static int | |
fba45db2 | 4867 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 4868 | { |
c5aa993b | 4869 | int retval; |
c906108c SS |
4870 | |
4871 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
4872 | ||
96baa820 | 4873 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4874 | pid, retval); |
c906108c SS |
4875 | |
4876 | return retval; | |
4877 | } | |
4878 | ||
77b06cd7 | 4879 | static int |
fba45db2 | 4880 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 4881 | { |
77b06cd7 TJB |
4882 | int retval; |
4883 | ||
4884 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 4885 | |
77b06cd7 TJB |
4886 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4887 | pid, retval); | |
4888 | ||
4889 | return retval; | |
c906108c SS |
4890 | } |
4891 | ||
4892 | static int | |
fba45db2 | 4893 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 4894 | { |
c5aa993b | 4895 | int retval; |
c906108c SS |
4896 | |
4897 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
4898 | ||
96baa820 | 4899 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4900 | pid, retval); |
c906108c SS |
4901 | |
4902 | return retval; | |
4903 | } | |
4904 | ||
77b06cd7 | 4905 | static int |
fba45db2 | 4906 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 4907 | { |
77b06cd7 TJB |
4908 | int retval; |
4909 | ||
4910 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 4911 | |
77b06cd7 TJB |
4912 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4913 | pid, retval); | |
4914 | ||
4915 | return retval; | |
c906108c SS |
4916 | } |
4917 | ||
4918 | static int | |
fba45db2 | 4919 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 4920 | { |
c5aa993b | 4921 | int retval; |
c906108c SS |
4922 | |
4923 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
4924 | ||
96baa820 | 4925 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4926 | pid, retval); |
c906108c SS |
4927 | |
4928 | return retval; | |
4929 | } | |
4930 | ||
c906108c | 4931 | static int |
fba45db2 | 4932 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 4933 | { |
c5aa993b | 4934 | int has_exited; |
c906108c SS |
4935 | |
4936 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
4937 | ||
96baa820 | 4938 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4939 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4940 | |
4941 | return has_exited; | |
4942 | } | |
4943 | ||
c906108c | 4944 | static int |
fba45db2 | 4945 | debug_to_can_run (void) |
c906108c SS |
4946 | { |
4947 | int retval; | |
4948 | ||
4949 | retval = debug_target.to_can_run (); | |
4950 | ||
96baa820 | 4951 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4952 | |
4953 | return retval; | |
4954 | } | |
4955 | ||
c2250ad1 UW |
4956 | static struct gdbarch * |
4957 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4958 | { | |
4959 | struct gdbarch *retval; | |
4960 | ||
4961 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4962 | ||
3e43a32a MS |
4963 | fprintf_unfiltered (gdb_stdlog, |
4964 | "target_thread_architecture (%s) = %s [%s]\n", | |
4965 | target_pid_to_str (ptid), | |
4966 | host_address_to_string (retval), | |
c2250ad1 UW |
4967 | gdbarch_bfd_arch_info (retval)->printable_name); |
4968 | return retval; | |
4969 | } | |
4970 | ||
c906108c | 4971 | static void |
94cc34af | 4972 | debug_to_stop (ptid_t ptid) |
c906108c | 4973 | { |
94cc34af | 4974 | debug_target.to_stop (ptid); |
c906108c | 4975 | |
94cc34af PA |
4976 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4977 | target_pid_to_str (ptid)); | |
c906108c SS |
4978 | } |
4979 | ||
96baa820 JM |
4980 | static void |
4981 | debug_to_rcmd (char *command, | |
d9fcf2fb | 4982 | struct ui_file *outbuf) |
96baa820 JM |
4983 | { |
4984 | debug_target.to_rcmd (command, outbuf); | |
4985 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
4986 | } | |
4987 | ||
c906108c | 4988 | static char * |
fba45db2 | 4989 | debug_to_pid_to_exec_file (int pid) |
c906108c | 4990 | { |
c5aa993b | 4991 | char *exec_file; |
c906108c SS |
4992 | |
4993 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
4994 | ||
96baa820 | 4995 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4996 | pid, exec_file); |
c906108c SS |
4997 | |
4998 | return exec_file; | |
4999 | } | |
5000 | ||
c906108c | 5001 | static void |
fba45db2 | 5002 | setup_target_debug (void) |
c906108c SS |
5003 | { |
5004 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
5005 | ||
5006 | current_target.to_open = debug_to_open; | |
c906108c | 5007 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 5008 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 5009 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
5010 | current_target.to_files_info = debug_to_files_info; |
5011 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
5012 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
5013 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
5014 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
5015 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
5016 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
5017 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
5018 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
5019 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
5020 | current_target.to_watchpoint_addr_within_range |
5021 | = debug_to_watchpoint_addr_within_range; | |
5022 | current_target.to_region_ok_for_hw_watchpoint | |
5023 | = debug_to_region_ok_for_hw_watchpoint; | |
5024 | current_target.to_can_accel_watchpoint_condition | |
5025 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
5026 | current_target.to_terminal_init = debug_to_terminal_init; |
5027 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
5028 | current_target.to_terminal_ours_for_output |
5029 | = debug_to_terminal_ours_for_output; | |
c906108c | 5030 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 5031 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 5032 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 5033 | current_target.to_load = debug_to_load; |
c906108c | 5034 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
5035 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
5036 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
5037 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
5038 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
5039 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
5040 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 5041 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 5042 | current_target.to_can_run = debug_to_can_run; |
c906108c | 5043 | current_target.to_stop = debug_to_stop; |
96baa820 | 5044 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 5045 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 5046 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 5047 | } |
c906108c | 5048 | \f |
c5aa993b JM |
5049 | |
5050 | static char targ_desc[] = | |
3e43a32a MS |
5051 | "Names of targets and files being debugged.\nShows the entire \ |
5052 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
5053 | core-file, and process, if any), as well as the symbol file name."; |
5054 | ||
96baa820 JM |
5055 | static void |
5056 | do_monitor_command (char *cmd, | |
5057 | int from_tty) | |
5058 | { | |
2b5fe715 AC |
5059 | if ((current_target.to_rcmd |
5060 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 5061 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
5062 | && (debug_target.to_rcmd |
5063 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 5064 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
5065 | target_rcmd (cmd, gdb_stdtarg); |
5066 | } | |
5067 | ||
87680a14 JB |
5068 | /* Print the name of each layers of our target stack. */ |
5069 | ||
5070 | static void | |
5071 | maintenance_print_target_stack (char *cmd, int from_tty) | |
5072 | { | |
5073 | struct target_ops *t; | |
5074 | ||
5075 | printf_filtered (_("The current target stack is:\n")); | |
5076 | ||
5077 | for (t = target_stack; t != NULL; t = t->beneath) | |
5078 | { | |
5079 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
5080 | } | |
5081 | } | |
5082 | ||
c6ebd6cf VP |
5083 | /* Controls if async mode is permitted. */ |
5084 | int target_async_permitted = 0; | |
5085 | ||
5086 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 5087 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
5088 | static int target_async_permitted_1 = 0; |
5089 | ||
5090 | static void | |
9401a810 PA |
5091 | set_target_async_command (char *args, int from_tty, |
5092 | struct cmd_list_element *c) | |
c6ebd6cf | 5093 | { |
c35b1492 | 5094 | if (have_live_inferiors ()) |
c6ebd6cf VP |
5095 | { |
5096 | target_async_permitted_1 = target_async_permitted; | |
5097 | error (_("Cannot change this setting while the inferior is running.")); | |
5098 | } | |
5099 | ||
5100 | target_async_permitted = target_async_permitted_1; | |
5101 | } | |
5102 | ||
5103 | static void | |
9401a810 PA |
5104 | show_target_async_command (struct ui_file *file, int from_tty, |
5105 | struct cmd_list_element *c, | |
5106 | const char *value) | |
c6ebd6cf | 5107 | { |
3e43a32a MS |
5108 | fprintf_filtered (file, |
5109 | _("Controlling the inferior in " | |
5110 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5111 | } |
5112 | ||
d914c394 SS |
5113 | /* Temporary copies of permission settings. */ |
5114 | ||
5115 | static int may_write_registers_1 = 1; | |
5116 | static int may_write_memory_1 = 1; | |
5117 | static int may_insert_breakpoints_1 = 1; | |
5118 | static int may_insert_tracepoints_1 = 1; | |
5119 | static int may_insert_fast_tracepoints_1 = 1; | |
5120 | static int may_stop_1 = 1; | |
5121 | ||
5122 | /* Make the user-set values match the real values again. */ | |
5123 | ||
5124 | void | |
5125 | update_target_permissions (void) | |
5126 | { | |
5127 | may_write_registers_1 = may_write_registers; | |
5128 | may_write_memory_1 = may_write_memory; | |
5129 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5130 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5131 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5132 | may_stop_1 = may_stop; | |
5133 | } | |
5134 | ||
5135 | /* The one function handles (most of) the permission flags in the same | |
5136 | way. */ | |
5137 | ||
5138 | static void | |
5139 | set_target_permissions (char *args, int from_tty, | |
5140 | struct cmd_list_element *c) | |
5141 | { | |
5142 | if (target_has_execution) | |
5143 | { | |
5144 | update_target_permissions (); | |
5145 | error (_("Cannot change this setting while the inferior is running.")); | |
5146 | } | |
5147 | ||
5148 | /* Make the real values match the user-changed values. */ | |
5149 | may_write_registers = may_write_registers_1; | |
5150 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5151 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5152 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5153 | may_stop = may_stop_1; | |
5154 | update_observer_mode (); | |
5155 | } | |
5156 | ||
5157 | /* Set memory write permission independently of observer mode. */ | |
5158 | ||
5159 | static void | |
5160 | set_write_memory_permission (char *args, int from_tty, | |
5161 | struct cmd_list_element *c) | |
5162 | { | |
5163 | /* Make the real values match the user-changed values. */ | |
5164 | may_write_memory = may_write_memory_1; | |
5165 | update_observer_mode (); | |
5166 | } | |
5167 | ||
5168 | ||
c906108c | 5169 | void |
fba45db2 | 5170 | initialize_targets (void) |
c906108c SS |
5171 | { |
5172 | init_dummy_target (); | |
5173 | push_target (&dummy_target); | |
5174 | ||
5175 | add_info ("target", target_info, targ_desc); | |
5176 | add_info ("files", target_info, targ_desc); | |
5177 | ||
ccce17b0 | 5178 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5179 | Set target debugging."), _("\ |
5180 | Show target debugging."), _("\ | |
333dabeb DJ |
5181 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5182 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5183 | command."), |
ccce17b0 YQ |
5184 | NULL, |
5185 | show_targetdebug, | |
5186 | &setdebuglist, &showdebuglist); | |
3a11626d | 5187 | |
2bc416ba | 5188 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5189 | &trust_readonly, _("\ |
5190 | Set mode for reading from readonly sections."), _("\ | |
5191 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5192 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5193 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5194 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5195 | NULL, |
920d2a44 | 5196 | show_trust_readonly, |
e707bbc2 | 5197 | &setlist, &showlist); |
96baa820 JM |
5198 | |
5199 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5200 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5201 | |
87680a14 JB |
5202 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5203 | _("Print the name of each layer of the internal target stack."), | |
5204 | &maintenanceprintlist); | |
5205 | ||
c6ebd6cf VP |
5206 | add_setshow_boolean_cmd ("target-async", no_class, |
5207 | &target_async_permitted_1, _("\ | |
5208 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5209 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5210 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5211 | set_target_async_command, |
5212 | show_target_async_command, | |
c6ebd6cf VP |
5213 | &setlist, |
5214 | &showlist); | |
5215 | ||
d914c394 SS |
5216 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5217 | &may_write_registers_1, _("\ | |
5218 | Set permission to write into registers."), _("\ | |
5219 | Show permission to write into registers."), _("\ | |
5220 | When this permission is on, GDB may write into the target's registers.\n\ | |
5221 | Otherwise, any sort of write attempt will result in an error."), | |
5222 | set_target_permissions, NULL, | |
5223 | &setlist, &showlist); | |
5224 | ||
5225 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5226 | &may_write_memory_1, _("\ | |
5227 | Set permission to write into target memory."), _("\ | |
5228 | Show permission to write into target memory."), _("\ | |
5229 | When this permission is on, GDB may write into the target's memory.\n\ | |
5230 | Otherwise, any sort of write attempt will result in an error."), | |
5231 | set_write_memory_permission, NULL, | |
5232 | &setlist, &showlist); | |
5233 | ||
5234 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5235 | &may_insert_breakpoints_1, _("\ | |
5236 | Set permission to insert breakpoints in the target."), _("\ | |
5237 | Show permission to insert breakpoints in the target."), _("\ | |
5238 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5239 | Otherwise, any sort of insertion attempt will result in an error."), | |
5240 | set_target_permissions, NULL, | |
5241 | &setlist, &showlist); | |
5242 | ||
5243 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5244 | &may_insert_tracepoints_1, _("\ | |
5245 | Set permission to insert tracepoints in the target."), _("\ | |
5246 | Show permission to insert tracepoints in the target."), _("\ | |
5247 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5248 | Otherwise, any sort of insertion attempt will result in an error."), | |
5249 | set_target_permissions, NULL, | |
5250 | &setlist, &showlist); | |
5251 | ||
5252 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5253 | &may_insert_fast_tracepoints_1, _("\ | |
5254 | Set permission to insert fast tracepoints in the target."), _("\ | |
5255 | Show permission to insert fast tracepoints in the target."), _("\ | |
5256 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5257 | Otherwise, any sort of insertion attempt will result in an error."), | |
5258 | set_target_permissions, NULL, | |
5259 | &setlist, &showlist); | |
5260 | ||
5261 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5262 | &may_stop_1, _("\ | |
5263 | Set permission to interrupt or signal the target."), _("\ | |
5264 | Show permission to interrupt or signal the target."), _("\ | |
5265 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5266 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5267 | set_target_permissions, NULL, | |
5268 | &setlist, &showlist); | |
c906108c | 5269 | } |