Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1990-2014 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <errno.h> | |
0e9f083f | 24 | #include <string.h> |
c906108c | 25 | #include "target.h" |
68c765e2 | 26 | #include "target-dcache.h" |
c906108c SS |
27 | #include "gdbcmd.h" |
28 | #include "symtab.h" | |
29 | #include "inferior.h" | |
30 | #include "bfd.h" | |
31 | #include "symfile.h" | |
32 | #include "objfiles.h" | |
4930751a | 33 | #include "dcache.h" |
c906108c | 34 | #include <signal.h> |
4e052eda | 35 | #include "regcache.h" |
0088c768 | 36 | #include "gdb_assert.h" |
b6591e8b | 37 | #include "gdbcore.h" |
9e35dae4 | 38 | #include "exceptions.h" |
424163ea | 39 | #include "target-descriptions.h" |
e1ac3328 | 40 | #include "gdbthread.h" |
b9db4ced | 41 | #include "solib.h" |
07b82ea5 | 42 | #include "exec.h" |
edb3359d | 43 | #include "inline-frame.h" |
2f4d8875 | 44 | #include "tracepoint.h" |
7313baad | 45 | #include "gdb/fileio.h" |
8ffcbaaf | 46 | #include "agent.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
503ebb2c | 50 | static void default_terminal_info (const char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
e0d24f8d WZ |
55 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
56 | ||
c25c4a8b | 57 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 58 | |
a14ed312 | 59 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 60 | |
a14ed312 | 61 | static int return_zero (void); |
c906108c | 62 | |
a14ed312 | 63 | static int return_one (void); |
c906108c | 64 | |
ccaa32c7 GS |
65 | static int return_minus_one (void); |
66 | ||
1b67eb02 AS |
67 | static void *return_null (void); |
68 | ||
a14ed312 | 69 | void target_ignore (void); |
c906108c | 70 | |
a14ed312 | 71 | static void target_command (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static struct target_ops *find_default_run_target (char *); |
c906108c | 74 | |
4ac248ca YQ |
75 | static target_xfer_partial_ftype default_xfer_partial; |
76 | ||
c2250ad1 UW |
77 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
78 | ptid_t ptid); | |
79 | ||
6b84065d TT |
80 | static int find_default_can_async_p (struct target_ops *ignore); |
81 | ||
82 | static int find_default_is_async_p (struct target_ops *ignore); | |
83 | ||
1101cb7b TT |
84 | #include "target-delegates.c" |
85 | ||
a14ed312 | 86 | static void init_dummy_target (void); |
c906108c | 87 | |
aa869812 AC |
88 | static struct target_ops debug_target; |
89 | ||
a14ed312 | 90 | static void debug_to_open (char *, int); |
c906108c | 91 | |
f32dbf8c MM |
92 | static void debug_to_prepare_to_store (struct target_ops *self, |
93 | struct regcache *); | |
c906108c | 94 | |
a14ed312 | 95 | static void debug_to_files_info (struct target_ops *); |
c906108c | 96 | |
3db08215 | 97 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 98 | struct bp_target_info *); |
c906108c | 99 | |
3db08215 | 100 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 101 | struct bp_target_info *); |
c906108c | 102 | |
5461485a TT |
103 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
104 | int, int, int); | |
ccaa32c7 | 105 | |
23a26771 TT |
106 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
107 | struct gdbarch *, | |
a6d9a66e | 108 | struct bp_target_info *); |
ccaa32c7 | 109 | |
a64dc96c TT |
110 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
111 | struct gdbarch *, | |
a6d9a66e | 112 | struct bp_target_info *); |
ccaa32c7 | 113 | |
0cf6dd15 TJB |
114 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int, |
115 | struct expression *); | |
ccaa32c7 | 116 | |
11b5219a TT |
117 | static int debug_to_remove_watchpoint (struct target_ops *self, |
118 | CORE_ADDR, int, int, | |
0cf6dd15 | 119 | struct expression *); |
ccaa32c7 | 120 | |
4aa7a7f5 | 121 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 122 | |
5009afc5 AS |
123 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
124 | CORE_ADDR, CORE_ADDR, int); | |
125 | ||
e0d24f8d WZ |
126 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
127 | ||
0cf6dd15 TJB |
128 | static int debug_to_can_accel_watchpoint_condition (CORE_ADDR, int, int, |
129 | struct expression *); | |
130 | ||
a14ed312 | 131 | static void debug_to_terminal_init (void); |
c906108c | 132 | |
a14ed312 | 133 | static void debug_to_terminal_inferior (void); |
c906108c | 134 | |
a14ed312 | 135 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 136 | |
a790ad35 SC |
137 | static void debug_to_terminal_save_ours (void); |
138 | ||
a14ed312 | 139 | static void debug_to_terminal_ours (void); |
c906108c | 140 | |
a14ed312 | 141 | static void debug_to_load (char *, int); |
c906108c | 142 | |
a14ed312 | 143 | static int debug_to_can_run (void); |
c906108c | 144 | |
94cc34af | 145 | static void debug_to_stop (ptid_t); |
c906108c | 146 | |
c906108c | 147 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 148 | array; the current index into the array; the allocated size of the |
c906108c SS |
149 | array. */ |
150 | struct target_ops **target_structs; | |
151 | unsigned target_struct_size; | |
c906108c SS |
152 | unsigned target_struct_allocsize; |
153 | #define DEFAULT_ALLOCSIZE 10 | |
154 | ||
155 | /* The initial current target, so that there is always a semi-valid | |
156 | current target. */ | |
157 | ||
158 | static struct target_ops dummy_target; | |
159 | ||
160 | /* Top of target stack. */ | |
161 | ||
258b763a | 162 | static struct target_ops *target_stack; |
c906108c SS |
163 | |
164 | /* The target structure we are currently using to talk to a process | |
165 | or file or whatever "inferior" we have. */ | |
166 | ||
167 | struct target_ops current_target; | |
168 | ||
169 | /* Command list for target. */ | |
170 | ||
171 | static struct cmd_list_element *targetlist = NULL; | |
172 | ||
cf7a04e8 DJ |
173 | /* Nonzero if we should trust readonly sections from the |
174 | executable when reading memory. */ | |
175 | ||
176 | static int trust_readonly = 0; | |
177 | ||
8defab1a DJ |
178 | /* Nonzero if we should show true memory content including |
179 | memory breakpoint inserted by gdb. */ | |
180 | ||
181 | static int show_memory_breakpoints = 0; | |
182 | ||
d914c394 SS |
183 | /* These globals control whether GDB attempts to perform these |
184 | operations; they are useful for targets that need to prevent | |
185 | inadvertant disruption, such as in non-stop mode. */ | |
186 | ||
187 | int may_write_registers = 1; | |
188 | ||
189 | int may_write_memory = 1; | |
190 | ||
191 | int may_insert_breakpoints = 1; | |
192 | ||
193 | int may_insert_tracepoints = 1; | |
194 | ||
195 | int may_insert_fast_tracepoints = 1; | |
196 | ||
197 | int may_stop = 1; | |
198 | ||
c906108c SS |
199 | /* Non-zero if we want to see trace of target level stuff. */ |
200 | ||
ccce17b0 | 201 | static unsigned int targetdebug = 0; |
920d2a44 AC |
202 | static void |
203 | show_targetdebug (struct ui_file *file, int from_tty, | |
204 | struct cmd_list_element *c, const char *value) | |
205 | { | |
206 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
207 | } | |
c906108c | 208 | |
a14ed312 | 209 | static void setup_target_debug (void); |
c906108c | 210 | |
c906108c SS |
211 | /* The user just typed 'target' without the name of a target. */ |
212 | ||
c906108c | 213 | static void |
fba45db2 | 214 | target_command (char *arg, int from_tty) |
c906108c SS |
215 | { |
216 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
217 | gdb_stdout); | |
218 | } | |
219 | ||
c35b1492 PA |
220 | /* Default target_has_* methods for process_stratum targets. */ |
221 | ||
222 | int | |
223 | default_child_has_all_memory (struct target_ops *ops) | |
224 | { | |
225 | /* If no inferior selected, then we can't read memory here. */ | |
226 | if (ptid_equal (inferior_ptid, null_ptid)) | |
227 | return 0; | |
228 | ||
229 | return 1; | |
230 | } | |
231 | ||
232 | int | |
233 | default_child_has_memory (struct target_ops *ops) | |
234 | { | |
235 | /* If no inferior selected, then we can't read memory here. */ | |
236 | if (ptid_equal (inferior_ptid, null_ptid)) | |
237 | return 0; | |
238 | ||
239 | return 1; | |
240 | } | |
241 | ||
242 | int | |
243 | default_child_has_stack (struct target_ops *ops) | |
244 | { | |
245 | /* If no inferior selected, there's no stack. */ | |
246 | if (ptid_equal (inferior_ptid, null_ptid)) | |
247 | return 0; | |
248 | ||
249 | return 1; | |
250 | } | |
251 | ||
252 | int | |
253 | default_child_has_registers (struct target_ops *ops) | |
254 | { | |
255 | /* Can't read registers from no inferior. */ | |
256 | if (ptid_equal (inferior_ptid, null_ptid)) | |
257 | return 0; | |
258 | ||
259 | return 1; | |
260 | } | |
261 | ||
262 | int | |
aeaec162 | 263 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
264 | { |
265 | /* If there's no thread selected, then we can't make it run through | |
266 | hoops. */ | |
aeaec162 | 267 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
268 | return 0; |
269 | ||
270 | return 1; | |
271 | } | |
272 | ||
273 | ||
274 | int | |
275 | target_has_all_memory_1 (void) | |
276 | { | |
277 | struct target_ops *t; | |
278 | ||
279 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
280 | if (t->to_has_all_memory (t)) | |
281 | return 1; | |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
286 | int | |
287 | target_has_memory_1 (void) | |
288 | { | |
289 | struct target_ops *t; | |
290 | ||
291 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
292 | if (t->to_has_memory (t)) | |
293 | return 1; | |
294 | ||
295 | return 0; | |
296 | } | |
297 | ||
298 | int | |
299 | target_has_stack_1 (void) | |
300 | { | |
301 | struct target_ops *t; | |
302 | ||
303 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
304 | if (t->to_has_stack (t)) | |
305 | return 1; | |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
310 | int | |
311 | target_has_registers_1 (void) | |
312 | { | |
313 | struct target_ops *t; | |
314 | ||
315 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
316 | if (t->to_has_registers (t)) | |
317 | return 1; | |
318 | ||
319 | return 0; | |
320 | } | |
321 | ||
322 | int | |
aeaec162 | 323 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
324 | { |
325 | struct target_ops *t; | |
326 | ||
327 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 328 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
329 | return 1; |
330 | ||
331 | return 0; | |
332 | } | |
333 | ||
aeaec162 TT |
334 | int |
335 | target_has_execution_current (void) | |
336 | { | |
337 | return target_has_execution_1 (inferior_ptid); | |
338 | } | |
339 | ||
c22a2b88 TT |
340 | /* Complete initialization of T. This ensures that various fields in |
341 | T are set, if needed by the target implementation. */ | |
c906108c SS |
342 | |
343 | void | |
c22a2b88 | 344 | complete_target_initialization (struct target_ops *t) |
c906108c | 345 | { |
0088c768 | 346 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
347 | if (t->to_xfer_partial == NULL) |
348 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 349 | |
c35b1492 PA |
350 | if (t->to_has_all_memory == NULL) |
351 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
352 | ||
353 | if (t->to_has_memory == NULL) | |
354 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
355 | ||
356 | if (t->to_has_stack == NULL) | |
357 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
358 | ||
359 | if (t->to_has_registers == NULL) | |
360 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
361 | ||
362 | if (t->to_has_execution == NULL) | |
aeaec162 | 363 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
364 | |
365 | install_delegators (t); | |
c22a2b88 TT |
366 | } |
367 | ||
368 | /* Add possible target architecture T to the list and add a new | |
369 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
370 | completer if not NULL. */ | |
371 | ||
372 | void | |
373 | add_target_with_completer (struct target_ops *t, | |
374 | completer_ftype *completer) | |
375 | { | |
376 | struct cmd_list_element *c; | |
377 | ||
378 | complete_target_initialization (t); | |
c35b1492 | 379 | |
c906108c SS |
380 | if (!target_structs) |
381 | { | |
382 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
383 | target_structs = (struct target_ops **) xmalloc | |
384 | (target_struct_allocsize * sizeof (*target_structs)); | |
385 | } | |
386 | if (target_struct_size >= target_struct_allocsize) | |
387 | { | |
388 | target_struct_allocsize *= 2; | |
389 | target_structs = (struct target_ops **) | |
c5aa993b JM |
390 | xrealloc ((char *) target_structs, |
391 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
392 | } |
393 | target_structs[target_struct_size++] = t; | |
c906108c SS |
394 | |
395 | if (targetlist == NULL) | |
1bedd215 AC |
396 | add_prefix_cmd ("target", class_run, target_command, _("\ |
397 | Connect to a target machine or process.\n\ | |
c906108c SS |
398 | The first argument is the type or protocol of the target machine.\n\ |
399 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
400 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 401 | `help target ' followed by the protocol name."), |
c906108c | 402 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
403 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
404 | &targetlist); | |
405 | if (completer != NULL) | |
406 | set_cmd_completer (c, completer); | |
407 | } | |
408 | ||
409 | /* Add a possible target architecture to the list. */ | |
410 | ||
411 | void | |
412 | add_target (struct target_ops *t) | |
413 | { | |
414 | add_target_with_completer (t, NULL); | |
c906108c SS |
415 | } |
416 | ||
b48d48eb MM |
417 | /* See target.h. */ |
418 | ||
419 | void | |
420 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
421 | { | |
422 | struct cmd_list_element *c; | |
423 | char *alt; | |
424 | ||
425 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
426 | see PR cli/15104. */ | |
427 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
428 | alt = xstrprintf ("target %s", t->to_shortname); | |
429 | deprecate_cmd (c, alt); | |
430 | } | |
431 | ||
c906108c SS |
432 | /* Stub functions */ |
433 | ||
434 | void | |
fba45db2 | 435 | target_ignore (void) |
c906108c SS |
436 | { |
437 | } | |
438 | ||
7d85a9c0 JB |
439 | void |
440 | target_kill (void) | |
441 | { | |
442 | struct target_ops *t; | |
443 | ||
444 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
445 | if (t->to_kill != NULL) | |
446 | { | |
447 | if (targetdebug) | |
448 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
449 | ||
450 | t->to_kill (t); | |
451 | return; | |
452 | } | |
453 | ||
454 | noprocess (); | |
455 | } | |
456 | ||
11cf8741 JM |
457 | void |
458 | target_load (char *arg, int from_tty) | |
459 | { | |
4e5d721f | 460 | target_dcache_invalidate (); |
11cf8741 JM |
461 | (*current_target.to_load) (arg, from_tty); |
462 | } | |
463 | ||
947b8855 PA |
464 | void |
465 | target_create_inferior (char *exec_file, char *args, | |
466 | char **env, int from_tty) | |
136d6dae VP |
467 | { |
468 | struct target_ops *t; | |
5d502164 | 469 | |
136d6dae VP |
470 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
471 | { | |
472 | if (t->to_create_inferior != NULL) | |
473 | { | |
474 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
475 | if (targetdebug) |
476 | fprintf_unfiltered (gdb_stdlog, | |
477 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
478 | exec_file, args, from_tty); | |
136d6dae VP |
479 | return; |
480 | } | |
481 | } | |
482 | ||
483 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 484 | _("could not find a target to create inferior")); |
136d6dae VP |
485 | } |
486 | ||
d9d2d8b6 PA |
487 | void |
488 | target_terminal_inferior (void) | |
489 | { | |
490 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 491 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
492 | this point the target is not async yet. However, if sync_execution |
493 | is not set, we know it will become async prior to resume. */ | |
494 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
495 | return; |
496 | ||
497 | /* If GDB is resuming the inferior in the foreground, install | |
498 | inferior's terminal modes. */ | |
499 | (*current_target.to_terminal_inferior) (); | |
500 | } | |
136d6dae | 501 | |
c906108c | 502 | static int |
fba45db2 KB |
503 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
504 | struct target_ops *t) | |
c906108c | 505 | { |
c378eb4e MS |
506 | errno = EIO; /* Can't read/write this location. */ |
507 | return 0; /* No bytes handled. */ | |
c906108c SS |
508 | } |
509 | ||
510 | static void | |
fba45db2 | 511 | tcomplain (void) |
c906108c | 512 | { |
8a3fe4f8 | 513 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
514 | current_target.to_shortname); |
515 | } | |
516 | ||
517 | void | |
fba45db2 | 518 | noprocess (void) |
c906108c | 519 | { |
8a3fe4f8 | 520 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
521 | } |
522 | ||
c906108c | 523 | static void |
503ebb2c | 524 | default_terminal_info (const char *args, int from_tty) |
c906108c | 525 | { |
a3f17187 | 526 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
527 | } |
528 | ||
0ef643c8 JB |
529 | /* A default implementation for the to_get_ada_task_ptid target method. |
530 | ||
531 | This function builds the PTID by using both LWP and TID as part of | |
532 | the PTID lwp and tid elements. The pid used is the pid of the | |
533 | inferior_ptid. */ | |
534 | ||
2c0b251b | 535 | static ptid_t |
0ef643c8 JB |
536 | default_get_ada_task_ptid (long lwp, long tid) |
537 | { | |
538 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
539 | } | |
540 | ||
32231432 PA |
541 | static enum exec_direction_kind |
542 | default_execution_direction (void) | |
543 | { | |
544 | if (!target_can_execute_reverse) | |
545 | return EXEC_FORWARD; | |
546 | else if (!target_can_async_p ()) | |
547 | return EXEC_FORWARD; | |
548 | else | |
549 | gdb_assert_not_reached ("\ | |
550 | to_execution_direction must be implemented for reverse async"); | |
551 | } | |
552 | ||
7998dfc3 AC |
553 | /* Go through the target stack from top to bottom, copying over zero |
554 | entries in current_target, then filling in still empty entries. In | |
555 | effect, we are doing class inheritance through the pushed target | |
556 | vectors. | |
557 | ||
558 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
559 | is currently implemented, is that it discards any knowledge of | |
560 | which target an inherited method originally belonged to. | |
561 | Consequently, new new target methods should instead explicitly and | |
562 | locally search the target stack for the target that can handle the | |
563 | request. */ | |
c906108c SS |
564 | |
565 | static void | |
7998dfc3 | 566 | update_current_target (void) |
c906108c | 567 | { |
7998dfc3 AC |
568 | struct target_ops *t; |
569 | ||
08d8bcd7 | 570 | /* First, reset current's contents. */ |
7998dfc3 AC |
571 | memset (¤t_target, 0, sizeof (current_target)); |
572 | ||
1101cb7b TT |
573 | /* Install the delegators. */ |
574 | install_delegators (¤t_target); | |
575 | ||
7998dfc3 AC |
576 | #define INHERIT(FIELD, TARGET) \ |
577 | if (!current_target.FIELD) \ | |
578 | current_target.FIELD = (TARGET)->FIELD | |
579 | ||
580 | for (t = target_stack; t; t = t->beneath) | |
581 | { | |
582 | INHERIT (to_shortname, t); | |
583 | INHERIT (to_longname, t); | |
584 | INHERIT (to_doc, t); | |
b52323fa UW |
585 | /* Do not inherit to_open. */ |
586 | /* Do not inherit to_close. */ | |
136d6dae | 587 | /* Do not inherit to_attach. */ |
7998dfc3 | 588 | INHERIT (to_post_attach, t); |
dc177b7a | 589 | INHERIT (to_attach_no_wait, t); |
136d6dae | 590 | /* Do not inherit to_detach. */ |
597320e7 | 591 | /* Do not inherit to_disconnect. */ |
28439f5e | 592 | /* Do not inherit to_resume. */ |
117de6a9 | 593 | /* Do not inherit to_wait. */ |
28439f5e PA |
594 | /* Do not inherit to_fetch_registers. */ |
595 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 596 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 597 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 | 598 | INHERIT (to_files_info, t); |
3db08215 MM |
599 | /* Do not inherit to_insert_breakpoint. */ |
600 | /* Do not inherit to_remove_breakpoint. */ | |
7998dfc3 AC |
601 | INHERIT (to_can_use_hw_breakpoint, t); |
602 | INHERIT (to_insert_hw_breakpoint, t); | |
603 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 604 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
605 | INHERIT (to_insert_watchpoint, t); |
606 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
607 | /* Do not inherit to_insert_mask_watchpoint. */ |
608 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 609 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 610 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 611 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 612 | /* Do not inherit to_stopped_by_watchpoint. */ |
5009afc5 | 613 | INHERIT (to_watchpoint_addr_within_range, t); |
e0d24f8d | 614 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 615 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 616 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
617 | INHERIT (to_terminal_init, t); |
618 | INHERIT (to_terminal_inferior, t); | |
619 | INHERIT (to_terminal_ours_for_output, t); | |
620 | INHERIT (to_terminal_ours, t); | |
621 | INHERIT (to_terminal_save_ours, t); | |
622 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 623 | /* Do not inherit to_kill. */ |
7998dfc3 | 624 | INHERIT (to_load, t); |
136d6dae | 625 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 626 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
627 | INHERIT (to_insert_fork_catchpoint, t); |
628 | INHERIT (to_remove_fork_catchpoint, t); | |
629 | INHERIT (to_insert_vfork_catchpoint, t); | |
630 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 631 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
632 | INHERIT (to_insert_exec_catchpoint, t); |
633 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 634 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 635 | INHERIT (to_has_exited, t); |
82892036 | 636 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 637 | INHERIT (to_can_run, t); |
2455069d | 638 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 639 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
640 | /* Do not inherit to_thread_alive. */ |
641 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 642 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 643 | INHERIT (to_extra_thread_info, t); |
4694da01 | 644 | INHERIT (to_thread_name, t); |
7998dfc3 | 645 | INHERIT (to_stop, t); |
4b8a223f | 646 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 647 | INHERIT (to_rcmd, t); |
7998dfc3 | 648 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 649 | INHERIT (to_log_command, t); |
7998dfc3 | 650 | INHERIT (to_stratum, t); |
c378eb4e MS |
651 | /* Do not inherit to_has_all_memory. */ |
652 | /* Do not inherit to_has_memory. */ | |
653 | /* Do not inherit to_has_stack. */ | |
654 | /* Do not inherit to_has_registers. */ | |
655 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 656 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
657 | /* Do not inherit to_can_async_p. */ |
658 | /* Do not inherit to_is_async_p. */ | |
659 | /* Do not inherit to_async. */ | |
7998dfc3 AC |
660 | INHERIT (to_find_memory_regions, t); |
661 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
662 | INHERIT (to_get_bookmark, t); |
663 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 664 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 665 | INHERIT (to_can_execute_reverse, t); |
32231432 | 666 | INHERIT (to_execution_direction, t); |
c2250ad1 | 667 | INHERIT (to_thread_architecture, t); |
424163ea | 668 | /* Do not inherit to_read_description. */ |
0ef643c8 | 669 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 670 | /* Do not inherit to_search_memory. */ |
8a305172 | 671 | INHERIT (to_supports_multi_process, t); |
d248b706 | 672 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 673 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
674 | INHERIT (to_trace_init, t); |
675 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 676 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 677 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
678 | INHERIT (to_enable_tracepoint, t); |
679 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
680 | INHERIT (to_trace_set_readonly_regions, t); |
681 | INHERIT (to_trace_start, t); | |
682 | INHERIT (to_get_trace_status, t); | |
f196051f | 683 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
684 | INHERIT (to_trace_stop, t); |
685 | INHERIT (to_trace_find, t); | |
686 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
687 | INHERIT (to_save_trace_data, t); |
688 | INHERIT (to_upload_tracepoints, t); | |
689 | INHERIT (to_upload_trace_state_variables, t); | |
690 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 691 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 692 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 693 | INHERIT (to_set_circular_trace_buffer, t); |
f6f899bf | 694 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 695 | INHERIT (to_set_trace_notes, t); |
711e434b | 696 | INHERIT (to_get_tib_address, t); |
d914c394 | 697 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
698 | INHERIT (to_static_tracepoint_marker_at, t); |
699 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 700 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
701 | INHERIT (to_use_agent, t); |
702 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 703 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 704 | INHERIT (to_magic, t); |
b775012e | 705 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 706 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 707 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
708 | /* Do not inherit to_flash_erase. */ |
709 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
710 | } |
711 | #undef INHERIT | |
712 | ||
713 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
714 | it. Some entries are defaulted to a method that print an error, |
715 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
716 | |
717 | #define de_fault(field, value) \ | |
7998dfc3 AC |
718 | if (!current_target.field) \ |
719 | current_target.field = value | |
0d06e24b | 720 | |
2bc416ba DJ |
721 | de_fault (to_open, |
722 | (void (*) (char *, int)) | |
0d06e24b | 723 | tcomplain); |
2bc416ba | 724 | de_fault (to_close, |
de90e03d | 725 | (void (*) (struct target_ops *)) |
0d06e24b | 726 | target_ignore); |
2bc416ba | 727 | de_fault (to_post_attach, |
f045800c | 728 | (void (*) (struct target_ops *, int)) |
0d06e24b | 729 | target_ignore); |
2bc416ba | 730 | de_fault (to_prepare_to_store, |
f32dbf8c | 731 | (void (*) (struct target_ops *, struct regcache *)) |
0d06e24b | 732 | noprocess); |
2bc416ba | 733 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
734 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
735 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 736 | nomemory); |
2bc416ba DJ |
737 | de_fault (to_files_info, |
738 | (void (*) (struct target_ops *)) | |
0d06e24b | 739 | target_ignore); |
ccaa32c7 | 740 | de_fault (to_can_use_hw_breakpoint, |
5461485a | 741 | (int (*) (struct target_ops *, int, int, int)) |
ccaa32c7 GS |
742 | return_zero); |
743 | de_fault (to_insert_hw_breakpoint, | |
23a26771 TT |
744 | (int (*) (struct target_ops *, struct gdbarch *, |
745 | struct bp_target_info *)) | |
ccaa32c7 GS |
746 | return_minus_one); |
747 | de_fault (to_remove_hw_breakpoint, | |
a64dc96c TT |
748 | (int (*) (struct target_ops *, struct gdbarch *, |
749 | struct bp_target_info *)) | |
ccaa32c7 GS |
750 | return_minus_one); |
751 | de_fault (to_insert_watchpoint, | |
0cf6dd15 | 752 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
753 | return_minus_one); |
754 | de_fault (to_remove_watchpoint, | |
11b5219a TT |
755 | (int (*) (struct target_ops *, CORE_ADDR, int, int, |
756 | struct expression *)) | |
ccaa32c7 | 757 | return_minus_one); |
5009afc5 AS |
758 | de_fault (to_watchpoint_addr_within_range, |
759 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
760 | de_fault (to_region_ok_for_hw_watchpoint, |
761 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 TJB |
762 | de_fault (to_can_accel_watchpoint_condition, |
763 | (int (*) (CORE_ADDR, int, int, struct expression *)) | |
764 | return_zero); | |
2bc416ba DJ |
765 | de_fault (to_terminal_init, |
766 | (void (*) (void)) | |
0d06e24b | 767 | target_ignore); |
2bc416ba DJ |
768 | de_fault (to_terminal_inferior, |
769 | (void (*) (void)) | |
0d06e24b | 770 | target_ignore); |
2bc416ba DJ |
771 | de_fault (to_terminal_ours_for_output, |
772 | (void (*) (void)) | |
0d06e24b | 773 | target_ignore); |
2bc416ba DJ |
774 | de_fault (to_terminal_ours, |
775 | (void (*) (void)) | |
0d06e24b | 776 | target_ignore); |
2bc416ba DJ |
777 | de_fault (to_terminal_save_ours, |
778 | (void (*) (void)) | |
a790ad35 | 779 | target_ignore); |
2bc416ba | 780 | de_fault (to_terminal_info, |
0d06e24b | 781 | default_terminal_info); |
2bc416ba DJ |
782 | de_fault (to_load, |
783 | (void (*) (char *, int)) | |
0d06e24b | 784 | tcomplain); |
2bc416ba DJ |
785 | de_fault (to_post_startup_inferior, |
786 | (void (*) (ptid_t)) | |
0d06e24b | 787 | target_ignore); |
2bc416ba | 788 | de_fault (to_insert_fork_catchpoint, |
77b06cd7 TJB |
789 | (int (*) (int)) |
790 | return_one); | |
2bc416ba DJ |
791 | de_fault (to_remove_fork_catchpoint, |
792 | (int (*) (int)) | |
77b06cd7 | 793 | return_one); |
2bc416ba | 794 | de_fault (to_insert_vfork_catchpoint, |
77b06cd7 TJB |
795 | (int (*) (int)) |
796 | return_one); | |
2bc416ba DJ |
797 | de_fault (to_remove_vfork_catchpoint, |
798 | (int (*) (int)) | |
77b06cd7 | 799 | return_one); |
2bc416ba | 800 | de_fault (to_insert_exec_catchpoint, |
77b06cd7 TJB |
801 | (int (*) (int)) |
802 | return_one); | |
2bc416ba DJ |
803 | de_fault (to_remove_exec_catchpoint, |
804 | (int (*) (int)) | |
77b06cd7 | 805 | return_one); |
a96d9b2e SDJ |
806 | de_fault (to_set_syscall_catchpoint, |
807 | (int (*) (int, int, int, int, int *)) | |
77b06cd7 | 808 | return_one); |
2bc416ba DJ |
809 | de_fault (to_has_exited, |
810 | (int (*) (int, int, int *)) | |
0d06e24b | 811 | return_zero); |
2bc416ba | 812 | de_fault (to_can_run, |
0d06e24b | 813 | return_zero); |
2bc416ba DJ |
814 | de_fault (to_extra_thread_info, |
815 | (char *(*) (struct thread_info *)) | |
1b67eb02 | 816 | return_null); |
4694da01 TT |
817 | de_fault (to_thread_name, |
818 | (char *(*) (struct thread_info *)) | |
1b67eb02 | 819 | return_null); |
2bc416ba | 820 | de_fault (to_stop, |
94cc34af | 821 | (void (*) (ptid_t)) |
0d06e24b | 822 | target_ignore); |
2bc416ba DJ |
823 | de_fault (to_rcmd, |
824 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 825 | tcomplain); |
2bc416ba DJ |
826 | de_fault (to_pid_to_exec_file, |
827 | (char *(*) (int)) | |
1b67eb02 | 828 | return_null); |
c2250ad1 UW |
829 | de_fault (to_thread_architecture, |
830 | default_thread_architecture); | |
424163ea | 831 | current_target.to_read_description = NULL; |
0ef643c8 JB |
832 | de_fault (to_get_ada_task_ptid, |
833 | (ptid_t (*) (long, long)) | |
834 | default_get_ada_task_ptid); | |
8a305172 PA |
835 | de_fault (to_supports_multi_process, |
836 | (int (*) (void)) | |
837 | return_zero); | |
d248b706 KY |
838 | de_fault (to_supports_enable_disable_tracepoint, |
839 | (int (*) (void)) | |
840 | return_zero); | |
3065dfb6 SS |
841 | de_fault (to_supports_string_tracing, |
842 | (int (*) (void)) | |
843 | return_zero); | |
35b1e5cc SS |
844 | de_fault (to_trace_init, |
845 | (void (*) (void)) | |
846 | tcomplain); | |
847 | de_fault (to_download_tracepoint, | |
e8ba3115 | 848 | (void (*) (struct bp_location *)) |
35b1e5cc | 849 | tcomplain); |
1e4d1764 YQ |
850 | de_fault (to_can_download_tracepoint, |
851 | (int (*) (void)) | |
852 | return_zero); | |
35b1e5cc SS |
853 | de_fault (to_download_trace_state_variable, |
854 | (void (*) (struct trace_state_variable *)) | |
855 | tcomplain); | |
d248b706 KY |
856 | de_fault (to_enable_tracepoint, |
857 | (void (*) (struct bp_location *)) | |
858 | tcomplain); | |
859 | de_fault (to_disable_tracepoint, | |
860 | (void (*) (struct bp_location *)) | |
861 | tcomplain); | |
35b1e5cc SS |
862 | de_fault (to_trace_set_readonly_regions, |
863 | (void (*) (void)) | |
864 | tcomplain); | |
865 | de_fault (to_trace_start, | |
866 | (void (*) (void)) | |
867 | tcomplain); | |
868 | de_fault (to_get_trace_status, | |
00bf0b85 | 869 | (int (*) (struct trace_status *)) |
35b1e5cc | 870 | return_minus_one); |
f196051f SS |
871 | de_fault (to_get_tracepoint_status, |
872 | (void (*) (struct breakpoint *, struct uploaded_tp *)) | |
873 | tcomplain); | |
35b1e5cc SS |
874 | de_fault (to_trace_stop, |
875 | (void (*) (void)) | |
876 | tcomplain); | |
877 | de_fault (to_trace_find, | |
cc5925ad | 878 | (int (*) (enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) |
4136fdd2 | 879 | return_minus_one); |
35b1e5cc SS |
880 | de_fault (to_get_trace_state_variable_value, |
881 | (int (*) (int, LONGEST *)) | |
882 | return_zero); | |
00bf0b85 | 883 | de_fault (to_save_trace_data, |
011aacb0 | 884 | (int (*) (const char *)) |
00bf0b85 SS |
885 | tcomplain); |
886 | de_fault (to_upload_tracepoints, | |
887 | (int (*) (struct uploaded_tp **)) | |
888 | return_zero); | |
889 | de_fault (to_upload_trace_state_variables, | |
890 | (int (*) (struct uploaded_tsv **)) | |
891 | return_zero); | |
892 | de_fault (to_get_raw_trace_data, | |
893 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
894 | tcomplain); | |
405f8e94 SS |
895 | de_fault (to_get_min_fast_tracepoint_insn_len, |
896 | (int (*) (void)) | |
897 | return_minus_one); | |
35b1e5cc SS |
898 | de_fault (to_set_disconnected_tracing, |
899 | (void (*) (int)) | |
4daf5ac0 SS |
900 | target_ignore); |
901 | de_fault (to_set_circular_trace_buffer, | |
902 | (void (*) (int)) | |
903 | target_ignore); | |
f6f899bf HAQ |
904 | de_fault (to_set_trace_buffer_size, |
905 | (void (*) (LONGEST)) | |
906 | target_ignore); | |
f196051f | 907 | de_fault (to_set_trace_notes, |
ca623f82 | 908 | (int (*) (const char *, const char *, const char *)) |
f196051f | 909 | return_zero); |
711e434b PM |
910 | de_fault (to_get_tib_address, |
911 | (int (*) (ptid_t, CORE_ADDR *)) | |
912 | tcomplain); | |
d914c394 SS |
913 | de_fault (to_set_permissions, |
914 | (void (*) (void)) | |
915 | target_ignore); | |
0fb4aa4b PA |
916 | de_fault (to_static_tracepoint_marker_at, |
917 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
918 | return_zero); | |
919 | de_fault (to_static_tracepoint_markers_by_strid, | |
920 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
921 | tcomplain); | |
b3b9301e PA |
922 | de_fault (to_traceframe_info, |
923 | (struct traceframe_info * (*) (void)) | |
1b67eb02 | 924 | return_null); |
b775012e LM |
925 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
926 | (int (*) (void)) | |
927 | return_zero); | |
d3ce09f5 SS |
928 | de_fault (to_can_run_breakpoint_commands, |
929 | (int (*) (void)) | |
930 | return_zero); | |
d1feda86 YQ |
931 | de_fault (to_use_agent, |
932 | (int (*) (int)) | |
933 | tcomplain); | |
934 | de_fault (to_can_use_agent, | |
935 | (int (*) (void)) | |
936 | return_zero); | |
ced63ec0 GB |
937 | de_fault (to_augmented_libraries_svr4_read, |
938 | (int (*) (void)) | |
939 | return_zero); | |
32231432 PA |
940 | de_fault (to_execution_direction, default_execution_direction); |
941 | ||
c906108c | 942 | #undef de_fault |
c906108c | 943 | |
7998dfc3 AC |
944 | /* Finally, position the target-stack beneath the squashed |
945 | "current_target". That way code looking for a non-inherited | |
946 | target method can quickly and simply find it. */ | |
947 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
948 | |
949 | if (targetdebug) | |
950 | setup_target_debug (); | |
c906108c SS |
951 | } |
952 | ||
953 | /* Push a new target type into the stack of the existing target accessors, | |
954 | possibly superseding some of the existing accessors. | |
955 | ||
c906108c SS |
956 | Rather than allow an empty stack, we always have the dummy target at |
957 | the bottom stratum, so we can call the function vectors without | |
958 | checking them. */ | |
959 | ||
b26a4dcb | 960 | void |
fba45db2 | 961 | push_target (struct target_ops *t) |
c906108c | 962 | { |
258b763a | 963 | struct target_ops **cur; |
c906108c SS |
964 | |
965 | /* Check magic number. If wrong, it probably means someone changed | |
966 | the struct definition, but not all the places that initialize one. */ | |
967 | if (t->to_magic != OPS_MAGIC) | |
968 | { | |
c5aa993b JM |
969 | fprintf_unfiltered (gdb_stderr, |
970 | "Magic number of %s target struct wrong\n", | |
971 | t->to_shortname); | |
3e43a32a MS |
972 | internal_error (__FILE__, __LINE__, |
973 | _("failed internal consistency check")); | |
c906108c SS |
974 | } |
975 | ||
258b763a AC |
976 | /* Find the proper stratum to install this target in. */ |
977 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 978 | { |
258b763a | 979 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
980 | break; |
981 | } | |
982 | ||
258b763a | 983 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 984 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
985 | targets to CUR, and not just those at this stratum level. */ |
986 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
987 | { | |
988 | /* There's already something at this stratum level. Close it, | |
989 | and un-hook it from the stack. */ | |
990 | struct target_ops *tmp = (*cur); | |
5d502164 | 991 | |
258b763a AC |
992 | (*cur) = (*cur)->beneath; |
993 | tmp->beneath = NULL; | |
460014f5 | 994 | target_close (tmp); |
258b763a | 995 | } |
c906108c SS |
996 | |
997 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
998 | t->beneath = (*cur); |
999 | (*cur) = t; | |
c906108c SS |
1000 | |
1001 | update_current_target (); | |
c906108c SS |
1002 | } |
1003 | ||
2bc416ba | 1004 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1005 | Return how many times it was removed (0 or 1). */ |
1006 | ||
1007 | int | |
fba45db2 | 1008 | unpush_target (struct target_ops *t) |
c906108c | 1009 | { |
258b763a AC |
1010 | struct target_ops **cur; |
1011 | struct target_ops *tmp; | |
c906108c | 1012 | |
c8d104ad PA |
1013 | if (t->to_stratum == dummy_stratum) |
1014 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1015 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1016 | |
c906108c | 1017 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1018 | can only occur once in the target stack. */ |
c906108c | 1019 | |
258b763a AC |
1020 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1021 | { | |
1022 | if ((*cur) == t) | |
1023 | break; | |
1024 | } | |
c906108c | 1025 | |
305436e0 PA |
1026 | /* If we don't find target_ops, quit. Only open targets should be |
1027 | closed. */ | |
258b763a | 1028 | if ((*cur) == NULL) |
305436e0 | 1029 | return 0; |
5269965e | 1030 | |
c378eb4e | 1031 | /* Unchain the target. */ |
258b763a AC |
1032 | tmp = (*cur); |
1033 | (*cur) = (*cur)->beneath; | |
1034 | tmp->beneath = NULL; | |
c906108c SS |
1035 | |
1036 | update_current_target (); | |
c906108c | 1037 | |
305436e0 PA |
1038 | /* Finally close the target. Note we do this after unchaining, so |
1039 | any target method calls from within the target_close | |
1040 | implementation don't end up in T anymore. */ | |
460014f5 | 1041 | target_close (t); |
305436e0 | 1042 | |
c906108c SS |
1043 | return 1; |
1044 | } | |
1045 | ||
aa76d38d | 1046 | void |
460014f5 | 1047 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1048 | { |
87ab71f0 | 1049 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1050 | { |
aa76d38d PA |
1051 | if (!unpush_target (target_stack)) |
1052 | { | |
1053 | fprintf_unfiltered (gdb_stderr, | |
1054 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1055 | target_stack->to_shortname); |
aa76d38d PA |
1056 | internal_error (__FILE__, __LINE__, |
1057 | _("failed internal consistency check")); | |
1058 | break; | |
1059 | } | |
1060 | } | |
1061 | } | |
1062 | ||
87ab71f0 | 1063 | void |
460014f5 | 1064 | pop_all_targets (void) |
87ab71f0 | 1065 | { |
460014f5 | 1066 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1067 | } |
1068 | ||
c0edd9ed JK |
1069 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1070 | ||
1071 | int | |
1072 | target_is_pushed (struct target_ops *t) | |
1073 | { | |
1074 | struct target_ops **cur; | |
1075 | ||
1076 | /* Check magic number. If wrong, it probably means someone changed | |
1077 | the struct definition, but not all the places that initialize one. */ | |
1078 | if (t->to_magic != OPS_MAGIC) | |
1079 | { | |
1080 | fprintf_unfiltered (gdb_stderr, | |
1081 | "Magic number of %s target struct wrong\n", | |
1082 | t->to_shortname); | |
3e43a32a MS |
1083 | internal_error (__FILE__, __LINE__, |
1084 | _("failed internal consistency check")); | |
c0edd9ed JK |
1085 | } |
1086 | ||
1087 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1088 | if (*cur == t) | |
1089 | return 1; | |
1090 | ||
1091 | return 0; | |
1092 | } | |
1093 | ||
72f5cf0e | 1094 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1095 | current thread's thread-local storage with offset OFFSET. */ |
1096 | CORE_ADDR | |
1097 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1098 | { | |
1099 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1100 | struct target_ops *target; |
1101 | ||
1102 | for (target = current_target.beneath; | |
1103 | target != NULL; | |
1104 | target = target->beneath) | |
1105 | { | |
1106 | if (target->to_get_thread_local_address != NULL) | |
1107 | break; | |
1108 | } | |
9e35dae4 | 1109 | |
117de6a9 | 1110 | if (target != NULL |
f5656ead | 1111 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1112 | { |
1113 | ptid_t ptid = inferior_ptid; | |
1114 | volatile struct gdb_exception ex; | |
1115 | ||
1116 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1117 | { | |
1118 | CORE_ADDR lm_addr; | |
1119 | ||
1120 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1121 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1122 | objfile); |
1123 | /* If it's 0, throw the appropriate exception. */ | |
1124 | if (lm_addr == 0) | |
1125 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1126 | _("TLS load module not found")); | |
1127 | ||
3e43a32a MS |
1128 | addr = target->to_get_thread_local_address (target, ptid, |
1129 | lm_addr, offset); | |
9e35dae4 DJ |
1130 | } |
1131 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1132 | throw the error to some higher catcher. */ | |
1133 | if (ex.reason < 0) | |
1134 | { | |
1135 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1136 | ||
1137 | switch (ex.error) | |
1138 | { | |
1139 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1140 | error (_("Cannot find thread-local variables " |
1141 | "in this thread library.")); | |
9e35dae4 DJ |
1142 | break; |
1143 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1144 | if (objfile_is_library) | |
1145 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 1146 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1147 | else |
1148 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 1149 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1150 | break; |
1151 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1152 | if (objfile_is_library) | |
1153 | error (_("The inferior has not yet allocated storage for" | |
1154 | " thread-local variables in\n" | |
1155 | "the shared library `%s'\n" | |
1156 | "for %s"), | |
4262abfb | 1157 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1158 | else |
1159 | error (_("The inferior has not yet allocated storage for" | |
1160 | " thread-local variables in\n" | |
1161 | "the executable `%s'\n" | |
1162 | "for %s"), | |
4262abfb | 1163 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1164 | break; |
1165 | case TLS_GENERIC_ERROR: | |
1166 | if (objfile_is_library) | |
1167 | error (_("Cannot find thread-local storage for %s, " | |
1168 | "shared library %s:\n%s"), | |
1169 | target_pid_to_str (ptid), | |
4262abfb | 1170 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1171 | else |
1172 | error (_("Cannot find thread-local storage for %s, " | |
1173 | "executable file %s:\n%s"), | |
1174 | target_pid_to_str (ptid), | |
4262abfb | 1175 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1176 | break; |
1177 | default: | |
1178 | throw_exception (ex); | |
1179 | break; | |
1180 | } | |
1181 | } | |
1182 | } | |
1183 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1184 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1185 | else | |
1186 | error (_("Cannot find thread-local variables on this target")); | |
1187 | ||
1188 | return addr; | |
1189 | } | |
1190 | ||
6be7b56e | 1191 | const char * |
9b409511 | 1192 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1193 | { |
1194 | #define CASE(X) case X: return #X | |
1195 | switch (err) | |
1196 | { | |
1197 | CASE(TARGET_XFER_E_IO); | |
1198 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1199 | default: | |
1200 | return "<unknown>"; | |
1201 | } | |
1202 | #undef CASE | |
1203 | }; | |
1204 | ||
1205 | ||
c906108c SS |
1206 | #undef MIN |
1207 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1208 | ||
1209 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1210 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1211 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1212 | is responsible for freeing it. Return the number of bytes successfully | |
1213 | read. */ | |
1214 | ||
1215 | int | |
fba45db2 | 1216 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1217 | { |
c2e8b827 | 1218 | int tlen, offset, i; |
1b0ba102 | 1219 | gdb_byte buf[4]; |
c906108c SS |
1220 | int errcode = 0; |
1221 | char *buffer; | |
1222 | int buffer_allocated; | |
1223 | char *bufptr; | |
1224 | unsigned int nbytes_read = 0; | |
1225 | ||
6217bf3e MS |
1226 | gdb_assert (string); |
1227 | ||
c906108c SS |
1228 | /* Small for testing. */ |
1229 | buffer_allocated = 4; | |
1230 | buffer = xmalloc (buffer_allocated); | |
1231 | bufptr = buffer; | |
1232 | ||
c906108c SS |
1233 | while (len > 0) |
1234 | { | |
1235 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1236 | offset = memaddr & 3; | |
1237 | ||
1b0ba102 | 1238 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1239 | if (errcode != 0) |
1240 | { | |
1241 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1242 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1243 | a single byte. */ |
1244 | tlen = 1; | |
1245 | offset = 0; | |
b8eb5af0 | 1246 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1247 | if (errcode != 0) |
1248 | goto done; | |
1249 | } | |
1250 | ||
1251 | if (bufptr - buffer + tlen > buffer_allocated) | |
1252 | { | |
1253 | unsigned int bytes; | |
5d502164 | 1254 | |
c906108c SS |
1255 | bytes = bufptr - buffer; |
1256 | buffer_allocated *= 2; | |
1257 | buffer = xrealloc (buffer, buffer_allocated); | |
1258 | bufptr = buffer + bytes; | |
1259 | } | |
1260 | ||
1261 | for (i = 0; i < tlen; i++) | |
1262 | { | |
1263 | *bufptr++ = buf[i + offset]; | |
1264 | if (buf[i + offset] == '\000') | |
1265 | { | |
1266 | nbytes_read += i + 1; | |
1267 | goto done; | |
1268 | } | |
1269 | } | |
1270 | ||
1271 | memaddr += tlen; | |
1272 | len -= tlen; | |
1273 | nbytes_read += tlen; | |
1274 | } | |
c5aa993b | 1275 | done: |
6217bf3e | 1276 | *string = buffer; |
c906108c SS |
1277 | if (errnop != NULL) |
1278 | *errnop = errcode; | |
c906108c SS |
1279 | return nbytes_read; |
1280 | } | |
1281 | ||
07b82ea5 PA |
1282 | struct target_section_table * |
1283 | target_get_section_table (struct target_ops *target) | |
1284 | { | |
1285 | struct target_ops *t; | |
1286 | ||
1287 | if (targetdebug) | |
1288 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1289 | ||
1290 | for (t = target; t != NULL; t = t->beneath) | |
1291 | if (t->to_get_section_table != NULL) | |
1292 | return (*t->to_get_section_table) (t); | |
1293 | ||
1294 | return NULL; | |
1295 | } | |
1296 | ||
8db32d44 | 1297 | /* Find a section containing ADDR. */ |
07b82ea5 | 1298 | |
0542c86d | 1299 | struct target_section * |
8db32d44 AC |
1300 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1301 | { | |
07b82ea5 | 1302 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1303 | struct target_section *secp; |
07b82ea5 PA |
1304 | |
1305 | if (table == NULL) | |
1306 | return NULL; | |
1307 | ||
1308 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1309 | { |
1310 | if (addr >= secp->addr && addr < secp->endaddr) | |
1311 | return secp; | |
1312 | } | |
1313 | return NULL; | |
1314 | } | |
1315 | ||
e6e4e701 PA |
1316 | /* Read memory from the live target, even if currently inspecting a |
1317 | traceframe. The return is the same as that of target_read. */ | |
1318 | ||
9b409511 | 1319 | static enum target_xfer_status |
e6e4e701 | 1320 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1321 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1322 | ULONGEST *xfered_len) | |
e6e4e701 | 1323 | { |
9b409511 | 1324 | enum target_xfer_status ret; |
e6e4e701 PA |
1325 | struct cleanup *cleanup; |
1326 | ||
1327 | /* Switch momentarily out of tfind mode so to access live memory. | |
1328 | Note that this must not clear global state, such as the frame | |
1329 | cache, which must still remain valid for the previous traceframe. | |
1330 | We may be _building_ the frame cache at this point. */ | |
1331 | cleanup = make_cleanup_restore_traceframe_number (); | |
1332 | set_traceframe_number (-1); | |
1333 | ||
9b409511 YQ |
1334 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1335 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1336 | |
1337 | do_cleanups (cleanup); | |
1338 | return ret; | |
1339 | } | |
1340 | ||
1341 | /* Using the set of read-only target sections of OPS, read live | |
1342 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1343 | top-most target again. |
1344 | ||
1345 | For interface/parameters/return description see target.h, | |
1346 | to_xfer_partial. */ | |
e6e4e701 | 1347 | |
9b409511 | 1348 | static enum target_xfer_status |
e6e4e701 PA |
1349 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1350 | enum target_object object, | |
1351 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1352 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1353 | { |
1354 | struct target_section *secp; | |
1355 | struct target_section_table *table; | |
1356 | ||
1357 | secp = target_section_by_addr (ops, memaddr); | |
1358 | if (secp != NULL | |
2b2848e2 DE |
1359 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1360 | secp->the_bfd_section) | |
e6e4e701 PA |
1361 | & SEC_READONLY)) |
1362 | { | |
1363 | struct target_section *p; | |
1364 | ULONGEST memend = memaddr + len; | |
1365 | ||
1366 | table = target_get_section_table (ops); | |
1367 | ||
1368 | for (p = table->sections; p < table->sections_end; p++) | |
1369 | { | |
1370 | if (memaddr >= p->addr) | |
1371 | { | |
1372 | if (memend <= p->endaddr) | |
1373 | { | |
1374 | /* Entire transfer is within this section. */ | |
1375 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1376 | readbuf, len, xfered_len); |
e6e4e701 PA |
1377 | } |
1378 | else if (memaddr >= p->endaddr) | |
1379 | { | |
1380 | /* This section ends before the transfer starts. */ | |
1381 | continue; | |
1382 | } | |
1383 | else | |
1384 | { | |
1385 | /* This section overlaps the transfer. Just do half. */ | |
1386 | len = p->endaddr - memaddr; | |
1387 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1388 | readbuf, len, xfered_len); |
e6e4e701 PA |
1389 | } |
1390 | } | |
1391 | } | |
1392 | } | |
1393 | ||
9b409511 | 1394 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1395 | } |
1396 | ||
9f713294 YQ |
1397 | /* Read memory from more than one valid target. A core file, for |
1398 | instance, could have some of memory but delegate other bits to | |
1399 | the target below it. So, we must manually try all targets. */ | |
1400 | ||
9b409511 | 1401 | static enum target_xfer_status |
17fde6d0 | 1402 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1403 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1404 | ULONGEST *xfered_len) | |
9f713294 | 1405 | { |
9b409511 | 1406 | enum target_xfer_status res; |
9f713294 YQ |
1407 | |
1408 | do | |
1409 | { | |
1410 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1411 | readbuf, writebuf, memaddr, len, |
1412 | xfered_len); | |
1413 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1414 | break; |
1415 | ||
633785ff MM |
1416 | /* Stop if the target reports that the memory is not available. */ |
1417 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1418 | break; | |
1419 | ||
9f713294 YQ |
1420 | /* We want to continue past core files to executables, but not |
1421 | past a running target's memory. */ | |
1422 | if (ops->to_has_all_memory (ops)) | |
1423 | break; | |
1424 | ||
1425 | ops = ops->beneath; | |
1426 | } | |
1427 | while (ops != NULL); | |
1428 | ||
1429 | return res; | |
1430 | } | |
1431 | ||
7f79c47e DE |
1432 | /* Perform a partial memory transfer. |
1433 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1434 | |
9b409511 | 1435 | static enum target_xfer_status |
f0ba3972 | 1436 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1437 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1438 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1439 | { |
9b409511 | 1440 | enum target_xfer_status res; |
cf7a04e8 DJ |
1441 | int reg_len; |
1442 | struct mem_region *region; | |
4e5d721f | 1443 | struct inferior *inf; |
cf7a04e8 | 1444 | |
07b82ea5 PA |
1445 | /* For accesses to unmapped overlay sections, read directly from |
1446 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1447 | if (readbuf != NULL && overlay_debugging) | |
1448 | { | |
1449 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1450 | |
07b82ea5 PA |
1451 | if (pc_in_unmapped_range (memaddr, section)) |
1452 | { | |
1453 | struct target_section_table *table | |
1454 | = target_get_section_table (ops); | |
1455 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1456 | |
07b82ea5 PA |
1457 | memaddr = overlay_mapped_address (memaddr, section); |
1458 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1459 | memaddr, len, xfered_len, |
07b82ea5 PA |
1460 | table->sections, |
1461 | table->sections_end, | |
1462 | section_name); | |
1463 | } | |
1464 | } | |
1465 | ||
1466 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1467 | if (readbuf != NULL && trust_readonly) |
1468 | { | |
0542c86d | 1469 | struct target_section *secp; |
07b82ea5 | 1470 | struct target_section_table *table; |
cf7a04e8 DJ |
1471 | |
1472 | secp = target_section_by_addr (ops, memaddr); | |
1473 | if (secp != NULL | |
2b2848e2 DE |
1474 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1475 | secp->the_bfd_section) | |
cf7a04e8 | 1476 | & SEC_READONLY)) |
07b82ea5 PA |
1477 | { |
1478 | table = target_get_section_table (ops); | |
1479 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1480 | memaddr, len, xfered_len, |
07b82ea5 PA |
1481 | table->sections, |
1482 | table->sections_end, | |
1483 | NULL); | |
1484 | } | |
98646950 UW |
1485 | } |
1486 | ||
e6e4e701 PA |
1487 | /* If reading unavailable memory in the context of traceframes, and |
1488 | this address falls within a read-only section, fallback to | |
1489 | reading from live memory. */ | |
1490 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1491 | { | |
1492 | VEC(mem_range_s) *available; | |
1493 | ||
1494 | /* If we fail to get the set of available memory, then the | |
1495 | target does not support querying traceframe info, and so we | |
1496 | attempt reading from the traceframe anyway (assuming the | |
1497 | target implements the old QTro packet then). */ | |
1498 | if (traceframe_available_memory (&available, memaddr, len)) | |
1499 | { | |
1500 | struct cleanup *old_chain; | |
1501 | ||
1502 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1503 | ||
1504 | if (VEC_empty (mem_range_s, available) | |
1505 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1506 | { | |
1507 | /* Don't read into the traceframe's available | |
1508 | memory. */ | |
1509 | if (!VEC_empty (mem_range_s, available)) | |
1510 | { | |
1511 | LONGEST oldlen = len; | |
1512 | ||
1513 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1514 | gdb_assert (len <= oldlen); | |
1515 | } | |
1516 | ||
1517 | do_cleanups (old_chain); | |
1518 | ||
1519 | /* This goes through the topmost target again. */ | |
1520 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1521 | readbuf, memaddr, |
1522 | len, xfered_len); | |
1523 | if (res == TARGET_XFER_OK) | |
1524 | return TARGET_XFER_OK; | |
1525 | else | |
1526 | { | |
1527 | /* No use trying further, we know some memory starting | |
1528 | at MEMADDR isn't available. */ | |
1529 | *xfered_len = len; | |
1530 | return TARGET_XFER_E_UNAVAILABLE; | |
1531 | } | |
e6e4e701 PA |
1532 | } |
1533 | ||
1534 | /* Don't try to read more than how much is available, in | |
1535 | case the target implements the deprecated QTro packet to | |
1536 | cater for older GDBs (the target's knowledge of read-only | |
1537 | sections may be outdated by now). */ | |
1538 | len = VEC_index (mem_range_s, available, 0)->length; | |
1539 | ||
1540 | do_cleanups (old_chain); | |
1541 | } | |
1542 | } | |
1543 | ||
cf7a04e8 DJ |
1544 | /* Try GDB's internal data cache. */ |
1545 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1546 | /* region->hi == 0 means there's no upper bound. */ |
1547 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1548 | reg_len = len; |
1549 | else | |
1550 | reg_len = region->hi - memaddr; | |
1551 | ||
1552 | switch (region->attrib.mode) | |
1553 | { | |
1554 | case MEM_RO: | |
1555 | if (writebuf != NULL) | |
2ed4b548 | 1556 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1557 | break; |
1558 | ||
1559 | case MEM_WO: | |
1560 | if (readbuf != NULL) | |
2ed4b548 | 1561 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1562 | break; |
a76d924d DJ |
1563 | |
1564 | case MEM_FLASH: | |
1565 | /* We only support writing to flash during "load" for now. */ | |
1566 | if (writebuf != NULL) | |
1567 | error (_("Writing to flash memory forbidden in this context")); | |
1568 | break; | |
4b5752d0 VP |
1569 | |
1570 | case MEM_NONE: | |
2ed4b548 | 1571 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1572 | } |
1573 | ||
6c95b8df PA |
1574 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1575 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1576 | else | |
1577 | inf = NULL; | |
4e5d721f DE |
1578 | |
1579 | if (inf != NULL | |
2f4d8875 PA |
1580 | /* The dcache reads whole cache lines; that doesn't play well |
1581 | with reading from a trace buffer, because reading outside of | |
1582 | the collected memory range fails. */ | |
1583 | && get_traceframe_number () == -1 | |
4e5d721f | 1584 | && (region->attrib.cache |
29453a14 YQ |
1585 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1586 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1587 | { |
2a2f9fe4 | 1588 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1589 | int l; |
2a2f9fe4 | 1590 | |
cf7a04e8 | 1591 | if (readbuf != NULL) |
9b409511 | 1592 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1593 | else |
1594 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1595 | correctness dcache_xfer_memory should take readbuf and | |
1596 | writebuf. */ | |
9b409511 | 1597 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1598 | reg_len, 1); |
9b409511 YQ |
1599 | if (l <= 0) |
1600 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1601 | else |
9b409511 YQ |
1602 | { |
1603 | *xfered_len = (ULONGEST) l; | |
1604 | return TARGET_XFER_OK; | |
1605 | } | |
cf7a04e8 DJ |
1606 | } |
1607 | ||
1608 | /* If none of those methods found the memory we wanted, fall back | |
1609 | to a target partial transfer. Normally a single call to | |
1610 | to_xfer_partial is enough; if it doesn't recognize an object | |
1611 | it will call the to_xfer_partial of the next target down. | |
1612 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1613 | object which can be read from more than one valid target. |
1614 | A core file, for instance, could have some of memory but | |
1615 | delegate other bits to the target below it. So, we must | |
1616 | manually try all targets. */ | |
1617 | ||
1618 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1619 | xfered_len); | |
cf7a04e8 | 1620 | |
41dcd03f DE |
1621 | /* Make sure the cache gets updated no matter what - if we are writing |
1622 | to the stack. Even if this write is not tagged as such, we still need | |
1623 | to update the cache. */ | |
1624 | ||
9b409511 | 1625 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1626 | && inf != NULL |
1627 | && writebuf != NULL | |
f2de9785 | 1628 | && target_dcache_init_p () |
41dcd03f | 1629 | && !region->attrib.cache |
29453a14 YQ |
1630 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1631 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1632 | { |
f2de9785 | 1633 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1634 | |
9b409511 | 1635 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1636 | } |
1637 | ||
cf7a04e8 DJ |
1638 | /* If we still haven't got anything, return the last error. We |
1639 | give up. */ | |
1640 | return res; | |
0779438d AC |
1641 | } |
1642 | ||
f0ba3972 PA |
1643 | /* Perform a partial memory transfer. For docs see target.h, |
1644 | to_xfer_partial. */ | |
1645 | ||
9b409511 | 1646 | static enum target_xfer_status |
f0ba3972 | 1647 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1648 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1649 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1650 | { |
9b409511 | 1651 | enum target_xfer_status res; |
f0ba3972 PA |
1652 | |
1653 | /* Zero length requests are ok and require no work. */ | |
1654 | if (len == 0) | |
9b409511 | 1655 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1656 | |
1657 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1658 | breakpoint insns, thus hiding out from higher layers whether | |
1659 | there are software breakpoints inserted in the code stream. */ | |
1660 | if (readbuf != NULL) | |
1661 | { | |
9b409511 YQ |
1662 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1663 | xfered_len); | |
f0ba3972 | 1664 | |
9b409511 | 1665 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1666 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1667 | } | |
1668 | else | |
1669 | { | |
1670 | void *buf; | |
1671 | struct cleanup *old_chain; | |
1672 | ||
67c059c2 AB |
1673 | /* A large write request is likely to be partially satisfied |
1674 | by memory_xfer_partial_1. We will continually malloc | |
1675 | and free a copy of the entire write request for breakpoint | |
1676 | shadow handling even though we only end up writing a small | |
1677 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1678 | len = min (4096, len); | |
1679 | ||
f0ba3972 PA |
1680 | buf = xmalloc (len); |
1681 | old_chain = make_cleanup (xfree, buf); | |
1682 | memcpy (buf, writebuf, len); | |
1683 | ||
1684 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1685 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1686 | xfered_len); | |
f0ba3972 PA |
1687 | |
1688 | do_cleanups (old_chain); | |
1689 | } | |
1690 | ||
1691 | return res; | |
1692 | } | |
1693 | ||
8defab1a DJ |
1694 | static void |
1695 | restore_show_memory_breakpoints (void *arg) | |
1696 | { | |
1697 | show_memory_breakpoints = (uintptr_t) arg; | |
1698 | } | |
1699 | ||
1700 | struct cleanup * | |
1701 | make_show_memory_breakpoints_cleanup (int show) | |
1702 | { | |
1703 | int current = show_memory_breakpoints; | |
8defab1a | 1704 | |
5d502164 | 1705 | show_memory_breakpoints = show; |
8defab1a DJ |
1706 | return make_cleanup (restore_show_memory_breakpoints, |
1707 | (void *) (uintptr_t) current); | |
1708 | } | |
1709 | ||
7f79c47e DE |
1710 | /* For docs see target.h, to_xfer_partial. */ |
1711 | ||
9b409511 | 1712 | enum target_xfer_status |
27394598 AC |
1713 | target_xfer_partial (struct target_ops *ops, |
1714 | enum target_object object, const char *annex, | |
4ac248ca | 1715 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1716 | ULONGEST offset, ULONGEST len, |
1717 | ULONGEST *xfered_len) | |
27394598 | 1718 | { |
9b409511 | 1719 | enum target_xfer_status retval; |
27394598 AC |
1720 | |
1721 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1722 | |
ce6d0892 YQ |
1723 | /* Transfer is done when LEN is zero. */ |
1724 | if (len == 0) | |
9b409511 | 1725 | return TARGET_XFER_EOF; |
ce6d0892 | 1726 | |
d914c394 SS |
1727 | if (writebuf && !may_write_memory) |
1728 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1729 | core_addr_to_string_nz (offset), plongest (len)); | |
1730 | ||
9b409511 YQ |
1731 | *xfered_len = 0; |
1732 | ||
cf7a04e8 DJ |
1733 | /* If this is a memory transfer, let the memory-specific code |
1734 | have a look at it instead. Memory transfers are more | |
1735 | complicated. */ | |
29453a14 YQ |
1736 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1737 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1738 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1739 | writebuf, offset, len, xfered_len); |
9f713294 | 1740 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1741 | { |
9f713294 | 1742 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1743 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1744 | xfered_len); | |
cf7a04e8 | 1745 | } |
9f713294 YQ |
1746 | else |
1747 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1748 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1749 | |
27394598 AC |
1750 | if (targetdebug) |
1751 | { | |
1752 | const unsigned char *myaddr = NULL; | |
1753 | ||
1754 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1755 | "%s:target_xfer_partial " |
9b409511 | 1756 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1757 | ops->to_shortname, |
1758 | (int) object, | |
1759 | (annex ? annex : "(null)"), | |
53b71562 JB |
1760 | host_address_to_string (readbuf), |
1761 | host_address_to_string (writebuf), | |
0b1553bc | 1762 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1763 | pulongest (len), retval, |
1764 | pulongest (*xfered_len)); | |
27394598 AC |
1765 | |
1766 | if (readbuf) | |
1767 | myaddr = readbuf; | |
1768 | if (writebuf) | |
1769 | myaddr = writebuf; | |
9b409511 | 1770 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1771 | { |
1772 | int i; | |
2bc416ba | 1773 | |
27394598 | 1774 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1775 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1776 | { |
53b71562 | 1777 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1778 | { |
1779 | if (targetdebug < 2 && i > 0) | |
1780 | { | |
1781 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1782 | break; | |
1783 | } | |
1784 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1785 | } | |
2bc416ba | 1786 | |
27394598 AC |
1787 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1788 | } | |
1789 | } | |
2bc416ba | 1790 | |
27394598 AC |
1791 | fputc_unfiltered ('\n', gdb_stdlog); |
1792 | } | |
9b409511 YQ |
1793 | |
1794 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1795 | properly. Do assertion after printing debug messages, so that we | |
1796 | can find more clues on assertion failure from debugging messages. */ | |
1797 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1798 | gdb_assert (*xfered_len > 0); | |
1799 | ||
27394598 AC |
1800 | return retval; |
1801 | } | |
1802 | ||
578d3588 PA |
1803 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1804 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1805 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1806 | |
1807 | If an error occurs, no guarantee is made about the contents of the data at | |
1808 | MYADDR. In particular, the caller should not depend upon partial reads | |
1809 | filling the buffer with good data. There is no way for the caller to know | |
1810 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1811 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1812 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1813 | |
1814 | int | |
1b162304 | 1815 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1816 | { |
c35b1492 PA |
1817 | /* Dispatch to the topmost target, not the flattened current_target. |
1818 | Memory accesses check target->to_has_(all_)memory, and the | |
1819 | flattened target doesn't inherit those. */ | |
1820 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1821 | myaddr, memaddr, len) == len) |
1822 | return 0; | |
0779438d | 1823 | else |
578d3588 | 1824 | return TARGET_XFER_E_IO; |
c906108c SS |
1825 | } |
1826 | ||
aee4bf85 PA |
1827 | /* Like target_read_memory, but specify explicitly that this is a read |
1828 | from the target's raw memory. That is, this read bypasses the | |
1829 | dcache, breakpoint shadowing, etc. */ | |
1830 | ||
1831 | int | |
1832 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1833 | { | |
1834 | /* See comment in target_read_memory about why the request starts at | |
1835 | current_target.beneath. */ | |
1836 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1837 | myaddr, memaddr, len) == len) | |
1838 | return 0; | |
1839 | else | |
1840 | return TARGET_XFER_E_IO; | |
1841 | } | |
1842 | ||
4e5d721f DE |
1843 | /* Like target_read_memory, but specify explicitly that this is a read from |
1844 | the target's stack. This may trigger different cache behavior. */ | |
1845 | ||
1846 | int | |
45aa4659 | 1847 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1848 | { |
aee4bf85 PA |
1849 | /* See comment in target_read_memory about why the request starts at |
1850 | current_target.beneath. */ | |
4e5d721f DE |
1851 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1852 | myaddr, memaddr, len) == len) | |
1853 | return 0; | |
1854 | else | |
578d3588 | 1855 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1856 | } |
1857 | ||
29453a14 YQ |
1858 | /* Like target_read_memory, but specify explicitly that this is a read from |
1859 | the target's code. This may trigger different cache behavior. */ | |
1860 | ||
1861 | int | |
1862 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1863 | { | |
aee4bf85 PA |
1864 | /* See comment in target_read_memory about why the request starts at |
1865 | current_target.beneath. */ | |
29453a14 YQ |
1866 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1867 | myaddr, memaddr, len) == len) | |
1868 | return 0; | |
1869 | else | |
1870 | return TARGET_XFER_E_IO; | |
1871 | } | |
1872 | ||
7f79c47e | 1873 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1874 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1875 | error occurs. If an error occurs, no guarantee is made about how |
1876 | much data got written. Callers that can deal with partial writes | |
1877 | should call target_write. */ | |
7f79c47e | 1878 | |
c906108c | 1879 | int |
45aa4659 | 1880 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1881 | { |
aee4bf85 PA |
1882 | /* See comment in target_read_memory about why the request starts at |
1883 | current_target.beneath. */ | |
c35b1492 | 1884 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1885 | myaddr, memaddr, len) == len) |
1886 | return 0; | |
0779438d | 1887 | else |
578d3588 | 1888 | return TARGET_XFER_E_IO; |
c906108c | 1889 | } |
c5aa993b | 1890 | |
f0ba3972 | 1891 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1892 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1893 | if any error occurs. If an error occurs, no guarantee is made |
1894 | about how much data got written. Callers that can deal with | |
1895 | partial writes should call target_write. */ | |
f0ba3972 PA |
1896 | |
1897 | int | |
45aa4659 | 1898 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1899 | { |
aee4bf85 PA |
1900 | /* See comment in target_read_memory about why the request starts at |
1901 | current_target.beneath. */ | |
f0ba3972 PA |
1902 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1903 | myaddr, memaddr, len) == len) | |
1904 | return 0; | |
1905 | else | |
578d3588 | 1906 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1907 | } |
1908 | ||
fd79ecee DJ |
1909 | /* Fetch the target's memory map. */ |
1910 | ||
1911 | VEC(mem_region_s) * | |
1912 | target_memory_map (void) | |
1913 | { | |
1914 | VEC(mem_region_s) *result; | |
1915 | struct mem_region *last_one, *this_one; | |
1916 | int ix; | |
1917 | struct target_ops *t; | |
1918 | ||
1919 | if (targetdebug) | |
1920 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1921 | ||
1922 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1923 | if (t->to_memory_map != NULL) | |
1924 | break; | |
1925 | ||
1926 | if (t == NULL) | |
1927 | return NULL; | |
1928 | ||
1929 | result = t->to_memory_map (t); | |
1930 | if (result == NULL) | |
1931 | return NULL; | |
1932 | ||
1933 | qsort (VEC_address (mem_region_s, result), | |
1934 | VEC_length (mem_region_s, result), | |
1935 | sizeof (struct mem_region), mem_region_cmp); | |
1936 | ||
1937 | /* Check that regions do not overlap. Simultaneously assign | |
1938 | a numbering for the "mem" commands to use to refer to | |
1939 | each region. */ | |
1940 | last_one = NULL; | |
1941 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1942 | { | |
1943 | this_one->number = ix; | |
1944 | ||
1945 | if (last_one && last_one->hi > this_one->lo) | |
1946 | { | |
1947 | warning (_("Overlapping regions in memory map: ignoring")); | |
1948 | VEC_free (mem_region_s, result); | |
1949 | return NULL; | |
1950 | } | |
1951 | last_one = this_one; | |
1952 | } | |
1953 | ||
1954 | return result; | |
1955 | } | |
1956 | ||
a76d924d DJ |
1957 | void |
1958 | target_flash_erase (ULONGEST address, LONGEST length) | |
1959 | { | |
1960 | struct target_ops *t; | |
1961 | ||
1962 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1963 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1964 | { |
1965 | if (targetdebug) | |
1966 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1967 | hex_string (address), phex (length, 0)); | |
1968 | t->to_flash_erase (t, address, length); | |
1969 | return; | |
1970 | } | |
a76d924d DJ |
1971 | |
1972 | tcomplain (); | |
1973 | } | |
1974 | ||
1975 | void | |
1976 | target_flash_done (void) | |
1977 | { | |
1978 | struct target_ops *t; | |
1979 | ||
1980 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1981 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1982 | { |
1983 | if (targetdebug) | |
1984 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1985 | t->to_flash_done (t); | |
1986 | return; | |
1987 | } | |
a76d924d DJ |
1988 | |
1989 | tcomplain (); | |
1990 | } | |
1991 | ||
920d2a44 AC |
1992 | static void |
1993 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1994 | struct cmd_list_element *c, const char *value) | |
1995 | { | |
3e43a32a MS |
1996 | fprintf_filtered (file, |
1997 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1998 | value); |
1999 | } | |
3a11626d | 2000 | |
1e3ff5ad AC |
2001 | /* More generic transfers. */ |
2002 | ||
9b409511 | 2003 | static enum target_xfer_status |
8aa91c1e | 2004 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 2005 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
2006 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
2007 | ULONGEST *xfered_len) | |
0088c768 AC |
2008 | { |
2009 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
2010 | && ops->deprecated_xfer_memory != NULL) |
2011 | /* If available, fall back to the target's | |
2012 | "deprecated_xfer_memory" method. */ | |
0088c768 | 2013 | { |
4b8a223f | 2014 | int xfered = -1; |
5d502164 | 2015 | |
0088c768 | 2016 | errno = 0; |
4b8a223f AC |
2017 | if (writebuf != NULL) |
2018 | { | |
2019 | void *buffer = xmalloc (len); | |
2020 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 2021 | |
4b8a223f | 2022 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
2023 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
2024 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
2025 | do_cleanups (cleanup); |
2026 | } | |
2027 | if (readbuf != NULL) | |
244e85c8 MS |
2028 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
2029 | 0/*read*/, NULL, ops); | |
0088c768 | 2030 | if (xfered > 0) |
9b409511 YQ |
2031 | { |
2032 | *xfered_len = (ULONGEST) xfered; | |
2033 | return TARGET_XFER_E_IO; | |
2034 | } | |
0088c768 | 2035 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
2036 | /* "deprecated_xfer_memory" uses 0, cross checked against |
2037 | ERRNO as one indication of an error. */ | |
9b409511 | 2038 | return TARGET_XFER_EOF; |
0088c768 | 2039 | else |
9b409511 | 2040 | return TARGET_XFER_E_IO; |
0088c768 | 2041 | } |
0088c768 | 2042 | else |
6b84065d TT |
2043 | { |
2044 | gdb_assert (ops->beneath != NULL); | |
2045 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2046 | readbuf, writebuf, offset, len, | |
2047 | xfered_len); | |
2048 | } | |
0088c768 AC |
2049 | } |
2050 | ||
7f79c47e | 2051 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2052 | |
9b409511 | 2053 | static enum target_xfer_status |
1e3ff5ad AC |
2054 | target_read_partial (struct target_ops *ops, |
2055 | enum target_object object, | |
1b0ba102 | 2056 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
2057 | ULONGEST offset, ULONGEST len, |
2058 | ULONGEST *xfered_len) | |
1e3ff5ad | 2059 | { |
9b409511 YQ |
2060 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
2061 | xfered_len); | |
1e3ff5ad AC |
2062 | } |
2063 | ||
8a55ffb0 | 2064 | static enum target_xfer_status |
1e3ff5ad AC |
2065 | target_write_partial (struct target_ops *ops, |
2066 | enum target_object object, | |
1b0ba102 | 2067 | const char *annex, const gdb_byte *buf, |
9b409511 | 2068 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 2069 | { |
9b409511 YQ |
2070 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
2071 | xfered_len); | |
1e3ff5ad AC |
2072 | } |
2073 | ||
2074 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2075 | |
2076 | /* For docs on target_read see target.h. */ | |
2077 | ||
1e3ff5ad AC |
2078 | LONGEST |
2079 | target_read (struct target_ops *ops, | |
2080 | enum target_object object, | |
1b0ba102 | 2081 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2082 | ULONGEST offset, LONGEST len) |
2083 | { | |
2084 | LONGEST xfered = 0; | |
5d502164 | 2085 | |
1e3ff5ad AC |
2086 | while (xfered < len) |
2087 | { | |
9b409511 YQ |
2088 | ULONGEST xfered_len; |
2089 | enum target_xfer_status status; | |
2090 | ||
2091 | status = target_read_partial (ops, object, annex, | |
2092 | (gdb_byte *) buf + xfered, | |
2093 | offset + xfered, len - xfered, | |
2094 | &xfered_len); | |
5d502164 | 2095 | |
1e3ff5ad | 2096 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 2097 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2098 | return xfered; |
9b409511 YQ |
2099 | else if (status == TARGET_XFER_OK) |
2100 | { | |
2101 | xfered += xfered_len; | |
2102 | QUIT; | |
2103 | } | |
2104 | else | |
0088c768 | 2105 | return -1; |
9b409511 | 2106 | |
1e3ff5ad AC |
2107 | } |
2108 | return len; | |
2109 | } | |
2110 | ||
f1a507a1 JB |
2111 | /* Assuming that the entire [begin, end) range of memory cannot be |
2112 | read, try to read whatever subrange is possible to read. | |
2113 | ||
2114 | The function returns, in RESULT, either zero or one memory block. | |
2115 | If there's a readable subrange at the beginning, it is completely | |
2116 | read and returned. Any further readable subrange will not be read. | |
2117 | Otherwise, if there's a readable subrange at the end, it will be | |
2118 | completely read and returned. Any readable subranges before it | |
2119 | (obviously, not starting at the beginning), will be ignored. In | |
2120 | other cases -- either no readable subrange, or readable subrange(s) | |
2121 | that is neither at the beginning, or end, nothing is returned. | |
2122 | ||
2123 | The purpose of this function is to handle a read across a boundary | |
2124 | of accessible memory in a case when memory map is not available. | |
2125 | The above restrictions are fine for this case, but will give | |
2126 | incorrect results if the memory is 'patchy'. However, supporting | |
2127 | 'patchy' memory would require trying to read every single byte, | |
2128 | and it seems unacceptable solution. Explicit memory map is | |
2129 | recommended for this case -- and target_read_memory_robust will | |
2130 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2131 | |
2132 | static void | |
3e43a32a MS |
2133 | read_whatever_is_readable (struct target_ops *ops, |
2134 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2135 | VEC(memory_read_result_s) **result) |
d5086790 | 2136 | { |
f1a507a1 | 2137 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2138 | ULONGEST current_begin = begin; |
2139 | ULONGEST current_end = end; | |
2140 | int forward; | |
2141 | memory_read_result_s r; | |
9b409511 | 2142 | ULONGEST xfered_len; |
8dedea02 VP |
2143 | |
2144 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2145 | if (end - begin <= 1) | |
13b3fd9b MS |
2146 | { |
2147 | xfree (buf); | |
2148 | return; | |
2149 | } | |
8dedea02 VP |
2150 | |
2151 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2152 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2153 | at the boundary of accessible region. */ |
2154 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 2155 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
2156 | { |
2157 | forward = 1; | |
2158 | ++current_begin; | |
2159 | } | |
2160 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
2161 | buf + (end-begin) - 1, end - 1, 1, |
2162 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
2163 | { |
2164 | forward = 0; | |
2165 | --current_end; | |
2166 | } | |
2167 | else | |
2168 | { | |
13b3fd9b | 2169 | xfree (buf); |
8dedea02 VP |
2170 | return; |
2171 | } | |
2172 | ||
2173 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2174 | found to be not readable as a whole. | |
2175 | ||
2176 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2177 | so there's no point trying further. */ | |
2178 | while (current_end - current_begin > 1) | |
2179 | { | |
2180 | ULONGEST first_half_begin, first_half_end; | |
2181 | ULONGEST second_half_begin, second_half_end; | |
2182 | LONGEST xfer; | |
8dedea02 | 2183 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2184 | |
8dedea02 VP |
2185 | if (forward) |
2186 | { | |
2187 | first_half_begin = current_begin; | |
2188 | first_half_end = middle; | |
2189 | second_half_begin = middle; | |
2190 | second_half_end = current_end; | |
2191 | } | |
2192 | else | |
2193 | { | |
2194 | first_half_begin = middle; | |
2195 | first_half_end = current_end; | |
2196 | second_half_begin = current_begin; | |
2197 | second_half_end = middle; | |
2198 | } | |
2199 | ||
2200 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2201 | buf + (first_half_begin - begin), | |
2202 | first_half_begin, | |
2203 | first_half_end - first_half_begin); | |
2204 | ||
2205 | if (xfer == first_half_end - first_half_begin) | |
2206 | { | |
c378eb4e | 2207 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2208 | other half. */ |
8dedea02 VP |
2209 | current_begin = second_half_begin; |
2210 | current_end = second_half_end; | |
2211 | } | |
2212 | else | |
2213 | { | |
c378eb4e MS |
2214 | /* This half is not readable. Because we've tried one byte, we |
2215 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2216 | iteration to divide again and try to read. |
2217 | ||
2218 | We don't handle the other half, because this function only tries | |
2219 | to read a single readable subrange. */ | |
2220 | current_begin = first_half_begin; | |
2221 | current_end = first_half_end; | |
2222 | } | |
2223 | } | |
2224 | ||
2225 | if (forward) | |
2226 | { | |
2227 | /* The [begin, current_begin) range has been read. */ | |
2228 | r.begin = begin; | |
2229 | r.end = current_begin; | |
2230 | r.data = buf; | |
2231 | } | |
2232 | else | |
2233 | { | |
2234 | /* The [current_end, end) range has been read. */ | |
2235 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2236 | |
8dedea02 VP |
2237 | r.data = xmalloc (rlen); |
2238 | memcpy (r.data, buf + current_end - begin, rlen); | |
2239 | r.begin = current_end; | |
2240 | r.end = end; | |
2241 | xfree (buf); | |
2242 | } | |
2243 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2244 | } | |
2245 | ||
2246 | void | |
2247 | free_memory_read_result_vector (void *x) | |
2248 | { | |
2249 | VEC(memory_read_result_s) *v = x; | |
2250 | memory_read_result_s *current; | |
2251 | int ix; | |
2252 | ||
2253 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2254 | { | |
2255 | xfree (current->data); | |
2256 | } | |
2257 | VEC_free (memory_read_result_s, v); | |
2258 | } | |
2259 | ||
2260 | VEC(memory_read_result_s) * | |
2261 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2262 | { | |
2263 | VEC(memory_read_result_s) *result = 0; | |
2264 | ||
2265 | LONGEST xfered = 0; | |
d5086790 VP |
2266 | while (xfered < len) |
2267 | { | |
8dedea02 VP |
2268 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2269 | LONGEST rlen; | |
5d502164 | 2270 | |
8dedea02 VP |
2271 | /* If there is no explicit region, a fake one should be created. */ |
2272 | gdb_assert (region); | |
2273 | ||
2274 | if (region->hi == 0) | |
2275 | rlen = len - xfered; | |
2276 | else | |
2277 | rlen = region->hi - offset; | |
2278 | ||
2279 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2280 | { |
c378eb4e | 2281 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2282 | if the region is explicitly marked inaccessible, or |
2283 | 'inaccessible-by-default' is in effect. */ | |
2284 | xfered += rlen; | |
2285 | } | |
2286 | else | |
2287 | { | |
2288 | LONGEST to_read = min (len - xfered, rlen); | |
2289 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2290 | ||
2291 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2292 | (gdb_byte *) buffer, | |
2293 | offset + xfered, to_read); | |
2294 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2295 | if (xfer <= 0) |
d5086790 | 2296 | { |
c378eb4e | 2297 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2298 | some subrange. */ |
2299 | xfree (buffer); | |
3e43a32a MS |
2300 | read_whatever_is_readable (ops, offset + xfered, |
2301 | offset + xfered + to_read, &result); | |
8dedea02 | 2302 | xfered += to_read; |
d5086790 | 2303 | } |
8dedea02 VP |
2304 | else |
2305 | { | |
2306 | struct memory_read_result r; | |
2307 | r.data = buffer; | |
2308 | r.begin = offset + xfered; | |
2309 | r.end = r.begin + xfer; | |
2310 | VEC_safe_push (memory_read_result_s, result, &r); | |
2311 | xfered += xfer; | |
2312 | } | |
2313 | QUIT; | |
d5086790 | 2314 | } |
d5086790 | 2315 | } |
8dedea02 | 2316 | return result; |
d5086790 VP |
2317 | } |
2318 | ||
8dedea02 | 2319 | |
cf7a04e8 DJ |
2320 | /* An alternative to target_write with progress callbacks. */ |
2321 | ||
1e3ff5ad | 2322 | LONGEST |
cf7a04e8 DJ |
2323 | target_write_with_progress (struct target_ops *ops, |
2324 | enum target_object object, | |
2325 | const char *annex, const gdb_byte *buf, | |
2326 | ULONGEST offset, LONGEST len, | |
2327 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2328 | { |
2329 | LONGEST xfered = 0; | |
a76d924d DJ |
2330 | |
2331 | /* Give the progress callback a chance to set up. */ | |
2332 | if (progress) | |
2333 | (*progress) (0, baton); | |
2334 | ||
1e3ff5ad AC |
2335 | while (xfered < len) |
2336 | { | |
9b409511 YQ |
2337 | ULONGEST xfered_len; |
2338 | enum target_xfer_status status; | |
2339 | ||
2340 | status = target_write_partial (ops, object, annex, | |
2341 | (gdb_byte *) buf + xfered, | |
2342 | offset + xfered, len - xfered, | |
2343 | &xfered_len); | |
cf7a04e8 | 2344 | |
9b409511 | 2345 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2346 | return xfered; |
9b409511 | 2347 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2348 | return -1; |
cf7a04e8 | 2349 | |
9b409511 | 2350 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2351 | if (progress) |
9b409511 | 2352 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2353 | |
9b409511 | 2354 | xfered += xfered_len; |
1e3ff5ad AC |
2355 | QUIT; |
2356 | } | |
2357 | return len; | |
2358 | } | |
2359 | ||
7f79c47e DE |
2360 | /* For docs on target_write see target.h. */ |
2361 | ||
cf7a04e8 DJ |
2362 | LONGEST |
2363 | target_write (struct target_ops *ops, | |
2364 | enum target_object object, | |
2365 | const char *annex, const gdb_byte *buf, | |
2366 | ULONGEST offset, LONGEST len) | |
2367 | { | |
2368 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2369 | NULL, NULL); | |
2370 | } | |
2371 | ||
159f81f3 DJ |
2372 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2373 | the size of the transferred data. PADDING additional bytes are | |
2374 | available in *BUF_P. This is a helper function for | |
2375 | target_read_alloc; see the declaration of that function for more | |
2376 | information. */ | |
13547ab6 | 2377 | |
159f81f3 DJ |
2378 | static LONGEST |
2379 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2380 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2381 | { |
2382 | size_t buf_alloc, buf_pos; | |
2383 | gdb_byte *buf; | |
13547ab6 DJ |
2384 | |
2385 | /* This function does not have a length parameter; it reads the | |
2386 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2387 | from one target and partly from another (in a different stratum, | |
2388 | e.g. a core file and an executable). Both reasons make it | |
2389 | unsuitable for reading memory. */ | |
2390 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2391 | ||
2392 | /* Start by reading up to 4K at a time. The target will throttle | |
2393 | this number down if necessary. */ | |
2394 | buf_alloc = 4096; | |
2395 | buf = xmalloc (buf_alloc); | |
2396 | buf_pos = 0; | |
2397 | while (1) | |
2398 | { | |
9b409511 YQ |
2399 | ULONGEST xfered_len; |
2400 | enum target_xfer_status status; | |
2401 | ||
2402 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2403 | buf_pos, buf_alloc - buf_pos - padding, | |
2404 | &xfered_len); | |
2405 | ||
2406 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2407 | { |
2408 | /* Read all there was. */ | |
2409 | if (buf_pos == 0) | |
2410 | xfree (buf); | |
2411 | else | |
2412 | *buf_p = buf; | |
2413 | return buf_pos; | |
2414 | } | |
9b409511 YQ |
2415 | else if (status != TARGET_XFER_OK) |
2416 | { | |
2417 | /* An error occurred. */ | |
2418 | xfree (buf); | |
2419 | return TARGET_XFER_E_IO; | |
2420 | } | |
13547ab6 | 2421 | |
9b409511 | 2422 | buf_pos += xfered_len; |
13547ab6 DJ |
2423 | |
2424 | /* If the buffer is filling up, expand it. */ | |
2425 | if (buf_alloc < buf_pos * 2) | |
2426 | { | |
2427 | buf_alloc *= 2; | |
2428 | buf = xrealloc (buf, buf_alloc); | |
2429 | } | |
2430 | ||
2431 | QUIT; | |
2432 | } | |
2433 | } | |
2434 | ||
159f81f3 DJ |
2435 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2436 | the size of the transferred data. See the declaration in "target.h" | |
2437 | function for more information about the return value. */ | |
2438 | ||
2439 | LONGEST | |
2440 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2441 | const char *annex, gdb_byte **buf_p) | |
2442 | { | |
2443 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2444 | } | |
2445 | ||
2446 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2447 | returned as a string, allocated using xmalloc. If an error occurs | |
2448 | or the transfer is unsupported, NULL is returned. Empty objects | |
2449 | are returned as allocated but empty strings. A warning is issued | |
2450 | if the result contains any embedded NUL bytes. */ | |
2451 | ||
2452 | char * | |
2453 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2454 | const char *annex) | |
2455 | { | |
39086a0e PA |
2456 | gdb_byte *buffer; |
2457 | char *bufstr; | |
7313baad | 2458 | LONGEST i, transferred; |
159f81f3 | 2459 | |
39086a0e PA |
2460 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2461 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2462 | |
2463 | if (transferred < 0) | |
2464 | return NULL; | |
2465 | ||
2466 | if (transferred == 0) | |
2467 | return xstrdup (""); | |
2468 | ||
39086a0e | 2469 | bufstr[transferred] = 0; |
7313baad UW |
2470 | |
2471 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2472 | for (i = strlen (bufstr); i < transferred; i++) |
2473 | if (bufstr[i] != 0) | |
7313baad UW |
2474 | { |
2475 | warning (_("target object %d, annex %s, " | |
2476 | "contained unexpected null characters"), | |
2477 | (int) object, annex ? annex : "(none)"); | |
2478 | break; | |
2479 | } | |
159f81f3 | 2480 | |
39086a0e | 2481 | return bufstr; |
159f81f3 DJ |
2482 | } |
2483 | ||
b6591e8b AC |
2484 | /* Memory transfer methods. */ |
2485 | ||
2486 | void | |
1b0ba102 | 2487 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2488 | LONGEST len) |
2489 | { | |
07b82ea5 PA |
2490 | /* This method is used to read from an alternate, non-current |
2491 | target. This read must bypass the overlay support (as symbols | |
2492 | don't match this target), and GDB's internal cache (wrong cache | |
2493 | for this target). */ | |
2494 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2495 | != len) |
578d3588 | 2496 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2497 | } |
2498 | ||
2499 | ULONGEST | |
5d502164 MS |
2500 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2501 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2502 | { |
f6519ebc | 2503 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2504 | |
2505 | gdb_assert (len <= sizeof (buf)); | |
2506 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2507 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2508 | } |
2509 | ||
3db08215 MM |
2510 | /* See target.h. */ |
2511 | ||
d914c394 SS |
2512 | int |
2513 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2514 | struct bp_target_info *bp_tgt) | |
2515 | { | |
2516 | if (!may_insert_breakpoints) | |
2517 | { | |
2518 | warning (_("May not insert breakpoints")); | |
2519 | return 1; | |
2520 | } | |
2521 | ||
6b84065d TT |
2522 | return current_target.to_insert_breakpoint (¤t_target, |
2523 | gdbarch, bp_tgt); | |
d914c394 SS |
2524 | } |
2525 | ||
3db08215 MM |
2526 | /* See target.h. */ |
2527 | ||
d914c394 | 2528 | int |
6b84065d TT |
2529 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2530 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2531 | { |
2532 | /* This is kind of a weird case to handle, but the permission might | |
2533 | have been changed after breakpoints were inserted - in which case | |
2534 | we should just take the user literally and assume that any | |
2535 | breakpoints should be left in place. */ | |
2536 | if (!may_insert_breakpoints) | |
2537 | { | |
2538 | warning (_("May not remove breakpoints")); | |
2539 | return 1; | |
2540 | } | |
2541 | ||
6b84065d TT |
2542 | return current_target.to_remove_breakpoint (¤t_target, |
2543 | gdbarch, bp_tgt); | |
d914c394 SS |
2544 | } |
2545 | ||
c906108c | 2546 | static void |
fba45db2 | 2547 | target_info (char *args, int from_tty) |
c906108c SS |
2548 | { |
2549 | struct target_ops *t; | |
c906108c | 2550 | int has_all_mem = 0; |
c5aa993b | 2551 | |
c906108c | 2552 | if (symfile_objfile != NULL) |
4262abfb JK |
2553 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2554 | objfile_name (symfile_objfile)); | |
c906108c | 2555 | |
258b763a | 2556 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2557 | { |
c35b1492 | 2558 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2559 | continue; |
2560 | ||
c5aa993b | 2561 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2562 | continue; |
2563 | if (has_all_mem) | |
3e43a32a MS |
2564 | printf_unfiltered (_("\tWhile running this, " |
2565 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2566 | printf_unfiltered ("%s:\n", t->to_longname); |
2567 | (t->to_files_info) (t); | |
c35b1492 | 2568 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2569 | } |
2570 | } | |
2571 | ||
fd79ecee DJ |
2572 | /* This function is called before any new inferior is created, e.g. |
2573 | by running a program, attaching, or connecting to a target. | |
2574 | It cleans up any state from previous invocations which might | |
2575 | change between runs. This is a subset of what target_preopen | |
2576 | resets (things which might change between targets). */ | |
2577 | ||
2578 | void | |
2579 | target_pre_inferior (int from_tty) | |
2580 | { | |
c378eb4e | 2581 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2582 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2583 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2584 | to reproduce: |
2585 | ||
2586 | bash$ ./foo& | |
2587 | [1] 4711 | |
2588 | bash$ ./foo& | |
2589 | [1] 4712 | |
2590 | bash$ gdb ./foo | |
2591 | [...] | |
2592 | (gdb) attach 4711 | |
2593 | (gdb) detach | |
2594 | (gdb) attach 4712 | |
2595 | Cannot access memory at address 0xdeadbeef | |
2596 | */ | |
b9db4ced | 2597 | |
50c71eaf PA |
2598 | /* In some OSs, the shared library list is the same/global/shared |
2599 | across inferiors. If code is shared between processes, so are | |
2600 | memory regions and features. */ | |
f5656ead | 2601 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2602 | { |
2603 | no_shared_libraries (NULL, from_tty); | |
2604 | ||
2605 | invalidate_target_mem_regions (); | |
424163ea | 2606 | |
50c71eaf PA |
2607 | target_clear_description (); |
2608 | } | |
8ffcbaaf YQ |
2609 | |
2610 | agent_capability_invalidate (); | |
fd79ecee DJ |
2611 | } |
2612 | ||
b8fa0bfa PA |
2613 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2614 | inferior. */ | |
2615 | ||
2616 | static int | |
2617 | dispose_inferior (struct inferior *inf, void *args) | |
2618 | { | |
2619 | struct thread_info *thread; | |
2620 | ||
2621 | thread = any_thread_of_process (inf->pid); | |
2622 | if (thread) | |
2623 | { | |
2624 | switch_to_thread (thread->ptid); | |
2625 | ||
2626 | /* Core inferiors actually should be detached, not killed. */ | |
2627 | if (target_has_execution) | |
2628 | target_kill (); | |
2629 | else | |
2630 | target_detach (NULL, 0); | |
2631 | } | |
2632 | ||
2633 | return 0; | |
2634 | } | |
2635 | ||
c906108c SS |
2636 | /* This is to be called by the open routine before it does |
2637 | anything. */ | |
2638 | ||
2639 | void | |
fba45db2 | 2640 | target_preopen (int from_tty) |
c906108c | 2641 | { |
c5aa993b | 2642 | dont_repeat (); |
c906108c | 2643 | |
b8fa0bfa | 2644 | if (have_inferiors ()) |
c5aa993b | 2645 | { |
adf40b2e | 2646 | if (!from_tty |
b8fa0bfa PA |
2647 | || !have_live_inferiors () |
2648 | || query (_("A program is being debugged already. Kill it? "))) | |
2649 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2650 | else |
8a3fe4f8 | 2651 | error (_("Program not killed.")); |
c906108c SS |
2652 | } |
2653 | ||
2654 | /* Calling target_kill may remove the target from the stack. But if | |
2655 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2656 | /* Leave the exec target, though. The user may be switching from a |
2657 | live process to a core of the same program. */ | |
460014f5 | 2658 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2659 | |
2660 | target_pre_inferior (from_tty); | |
c906108c SS |
2661 | } |
2662 | ||
2663 | /* Detach a target after doing deferred register stores. */ | |
2664 | ||
2665 | void | |
52554a0e | 2666 | target_detach (const char *args, int from_tty) |
c906108c | 2667 | { |
136d6dae VP |
2668 | struct target_ops* t; |
2669 | ||
f5656ead | 2670 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2671 | /* Don't remove global breakpoints here. They're removed on |
2672 | disconnection from the target. */ | |
2673 | ; | |
2674 | else | |
2675 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2676 | them before detaching. */ | |
dfd4cc63 | 2677 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2678 | |
24291992 PA |
2679 | prepare_for_detach (); |
2680 | ||
136d6dae VP |
2681 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2682 | { | |
2683 | if (t->to_detach != NULL) | |
2684 | { | |
2685 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2686 | if (targetdebug) |
2687 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2688 | args, from_tty); | |
136d6dae VP |
2689 | return; |
2690 | } | |
2691 | } | |
2692 | ||
9b20d036 | 2693 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2694 | } |
2695 | ||
6ad8ae5c DJ |
2696 | void |
2697 | target_disconnect (char *args, int from_tty) | |
2698 | { | |
597320e7 DJ |
2699 | struct target_ops *t; |
2700 | ||
50c71eaf PA |
2701 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2702 | are global across processes, we have to remove them before | |
2703 | disconnecting. */ | |
74960c60 VP |
2704 | remove_breakpoints (); |
2705 | ||
597320e7 DJ |
2706 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2707 | if (t->to_disconnect != NULL) | |
2708 | { | |
2709 | if (targetdebug) | |
2710 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2711 | args, from_tty); | |
2712 | t->to_disconnect (t, args, from_tty); | |
2713 | return; | |
2714 | } | |
2715 | ||
2716 | tcomplain (); | |
6ad8ae5c DJ |
2717 | } |
2718 | ||
117de6a9 | 2719 | ptid_t |
47608cb1 | 2720 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2721 | { |
2722 | struct target_ops *t; | |
6b84065d TT |
2723 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2724 | status, options); | |
117de6a9 | 2725 | |
6b84065d | 2726 | if (targetdebug) |
117de6a9 | 2727 | { |
6b84065d TT |
2728 | char *status_string; |
2729 | char *options_string; | |
117de6a9 | 2730 | |
6b84065d TT |
2731 | status_string = target_waitstatus_to_string (status); |
2732 | options_string = target_options_to_string (options); | |
2733 | fprintf_unfiltered (gdb_stdlog, | |
2734 | "target_wait (%d, status, options={%s})" | |
2735 | " = %d, %s\n", | |
2736 | ptid_get_pid (ptid), options_string, | |
2737 | ptid_get_pid (retval), status_string); | |
2738 | xfree (status_string); | |
2739 | xfree (options_string); | |
117de6a9 PA |
2740 | } |
2741 | ||
6b84065d | 2742 | return retval; |
117de6a9 PA |
2743 | } |
2744 | ||
2745 | char * | |
2746 | target_pid_to_str (ptid_t ptid) | |
2747 | { | |
2748 | struct target_ops *t; | |
2749 | ||
2750 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2751 | { | |
2752 | if (t->to_pid_to_str != NULL) | |
2753 | return (*t->to_pid_to_str) (t, ptid); | |
2754 | } | |
2755 | ||
2756 | return normal_pid_to_str (ptid); | |
2757 | } | |
2758 | ||
4694da01 TT |
2759 | char * |
2760 | target_thread_name (struct thread_info *info) | |
2761 | { | |
2762 | struct target_ops *t; | |
2763 | ||
2764 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2765 | { | |
2766 | if (t->to_thread_name != NULL) | |
2767 | return (*t->to_thread_name) (info); | |
2768 | } | |
2769 | ||
2770 | return NULL; | |
2771 | } | |
2772 | ||
e1ac3328 | 2773 | void |
2ea28649 | 2774 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2775 | { |
28439f5e PA |
2776 | struct target_ops *t; |
2777 | ||
4e5d721f | 2778 | target_dcache_invalidate (); |
28439f5e | 2779 | |
6b84065d TT |
2780 | current_target.to_resume (¤t_target, ptid, step, signal); |
2781 | if (targetdebug) | |
2782 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2783 | ptid_get_pid (ptid), | |
2784 | step ? "step" : "continue", | |
2785 | gdb_signal_to_name (signal)); | |
28439f5e | 2786 | |
6b84065d TT |
2787 | registers_changed_ptid (ptid); |
2788 | set_executing (ptid, 1); | |
2789 | set_running (ptid, 1); | |
2790 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2791 | } |
2455069d UW |
2792 | |
2793 | void | |
2794 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2795 | { | |
2796 | struct target_ops *t; | |
2797 | ||
2798 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2799 | { | |
2800 | if (t->to_pass_signals != NULL) | |
2801 | { | |
2802 | if (targetdebug) | |
2803 | { | |
2804 | int i; | |
2805 | ||
2806 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2807 | numsigs); | |
2808 | ||
2809 | for (i = 0; i < numsigs; i++) | |
2810 | if (pass_signals[i]) | |
2811 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2812 | gdb_signal_to_name (i)); |
2455069d UW |
2813 | |
2814 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2815 | } | |
2816 | ||
2817 | (*t->to_pass_signals) (numsigs, pass_signals); | |
2818 | return; | |
2819 | } | |
2820 | } | |
2821 | } | |
2822 | ||
9b224c5e PA |
2823 | void |
2824 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2825 | { | |
2826 | struct target_ops *t; | |
2827 | ||
2828 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2829 | { | |
2830 | if (t->to_program_signals != NULL) | |
2831 | { | |
2832 | if (targetdebug) | |
2833 | { | |
2834 | int i; | |
2835 | ||
2836 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2837 | numsigs); | |
2838 | ||
2839 | for (i = 0; i < numsigs; i++) | |
2840 | if (program_signals[i]) | |
2841 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2842 | gdb_signal_to_name (i)); |
9b224c5e PA |
2843 | |
2844 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2845 | } | |
2846 | ||
2847 | (*t->to_program_signals) (numsigs, program_signals); | |
2848 | return; | |
2849 | } | |
2850 | } | |
2851 | } | |
2852 | ||
ee057212 DJ |
2853 | /* Look through the list of possible targets for a target that can |
2854 | follow forks. */ | |
2855 | ||
2856 | int | |
07107ca6 | 2857 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2858 | { |
2859 | struct target_ops *t; | |
2860 | ||
2861 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2862 | { | |
2863 | if (t->to_follow_fork != NULL) | |
2864 | { | |
07107ca6 | 2865 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2866 | |
ee057212 | 2867 | if (targetdebug) |
07107ca6 LM |
2868 | fprintf_unfiltered (gdb_stdlog, |
2869 | "target_follow_fork (%d, %d) = %d\n", | |
2870 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2871 | return retval; |
2872 | } | |
2873 | } | |
2874 | ||
2875 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2876 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2877 | _("could not find a target to follow fork")); |
ee057212 DJ |
2878 | } |
2879 | ||
136d6dae VP |
2880 | void |
2881 | target_mourn_inferior (void) | |
2882 | { | |
2883 | struct target_ops *t; | |
5d502164 | 2884 | |
136d6dae VP |
2885 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2886 | { | |
2887 | if (t->to_mourn_inferior != NULL) | |
2888 | { | |
2889 | t->to_mourn_inferior (t); | |
947b8855 PA |
2890 | if (targetdebug) |
2891 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2892 | |
2893 | /* We no longer need to keep handles on any of the object files. | |
2894 | Make sure to release them to avoid unnecessarily locking any | |
2895 | of them while we're not actually debugging. */ | |
2896 | bfd_cache_close_all (); | |
2897 | ||
136d6dae VP |
2898 | return; |
2899 | } | |
2900 | } | |
2901 | ||
2902 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2903 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2904 | } |
2905 | ||
424163ea DJ |
2906 | /* Look for a target which can describe architectural features, starting |
2907 | from TARGET. If we find one, return its description. */ | |
2908 | ||
2909 | const struct target_desc * | |
2910 | target_read_description (struct target_ops *target) | |
2911 | { | |
2912 | struct target_ops *t; | |
2913 | ||
2914 | for (t = target; t != NULL; t = t->beneath) | |
2915 | if (t->to_read_description != NULL) | |
2916 | { | |
2917 | const struct target_desc *tdesc; | |
2918 | ||
2919 | tdesc = t->to_read_description (t); | |
2920 | if (tdesc) | |
2921 | return tdesc; | |
2922 | } | |
2923 | ||
2924 | return NULL; | |
2925 | } | |
2926 | ||
08388c79 DE |
2927 | /* The default implementation of to_search_memory. |
2928 | This implements a basic search of memory, reading target memory and | |
2929 | performing the search here (as opposed to performing the search in on the | |
2930 | target side with, for example, gdbserver). */ | |
2931 | ||
2932 | int | |
2933 | simple_search_memory (struct target_ops *ops, | |
2934 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2935 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2936 | CORE_ADDR *found_addrp) | |
2937 | { | |
2938 | /* NOTE: also defined in find.c testcase. */ | |
2939 | #define SEARCH_CHUNK_SIZE 16000 | |
2940 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2941 | /* Buffer to hold memory contents for searching. */ | |
2942 | gdb_byte *search_buf; | |
2943 | unsigned search_buf_size; | |
2944 | struct cleanup *old_cleanups; | |
2945 | ||
2946 | search_buf_size = chunk_size + pattern_len - 1; | |
2947 | ||
2948 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2949 | if (search_space_len < search_buf_size) | |
2950 | search_buf_size = search_space_len; | |
2951 | ||
2952 | search_buf = malloc (search_buf_size); | |
2953 | if (search_buf == NULL) | |
5e1471f5 | 2954 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2955 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2956 | ||
2957 | /* Prime the search buffer. */ | |
2958 | ||
2959 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2960 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2961 | { | |
b3dc46ff AB |
2962 | warning (_("Unable to access %s bytes of target " |
2963 | "memory at %s, halting search."), | |
2964 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2965 | do_cleanups (old_cleanups); |
2966 | return -1; | |
2967 | } | |
2968 | ||
2969 | /* Perform the search. | |
2970 | ||
2971 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2972 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2973 | read in another N bytes. */ | |
2974 | ||
2975 | while (search_space_len >= pattern_len) | |
2976 | { | |
2977 | gdb_byte *found_ptr; | |
2978 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2979 | ||
2980 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2981 | pattern, pattern_len); | |
2982 | ||
2983 | if (found_ptr != NULL) | |
2984 | { | |
2985 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2986 | |
08388c79 DE |
2987 | *found_addrp = found_addr; |
2988 | do_cleanups (old_cleanups); | |
2989 | return 1; | |
2990 | } | |
2991 | ||
2992 | /* Not found in this chunk, skip to next chunk. */ | |
2993 | ||
2994 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2995 | if (search_space_len >= chunk_size) | |
2996 | search_space_len -= chunk_size; | |
2997 | else | |
2998 | search_space_len = 0; | |
2999 | ||
3000 | if (search_space_len >= pattern_len) | |
3001 | { | |
3002 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 3003 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
3004 | int nr_to_read; |
3005 | ||
3006 | /* Copy the trailing part of the previous iteration to the front | |
3007 | of the buffer for the next iteration. */ | |
3008 | gdb_assert (keep_len == pattern_len - 1); | |
3009 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
3010 | ||
3011 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
3012 | ||
3013 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
3014 | search_buf + keep_len, read_addr, | |
3015 | nr_to_read) != nr_to_read) | |
3016 | { | |
b3dc46ff | 3017 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 3018 | "memory at %s, halting search."), |
b3dc46ff | 3019 | plongest (nr_to_read), |
08388c79 DE |
3020 | hex_string (read_addr)); |
3021 | do_cleanups (old_cleanups); | |
3022 | return -1; | |
3023 | } | |
3024 | ||
3025 | start_addr += chunk_size; | |
3026 | } | |
3027 | } | |
3028 | ||
3029 | /* Not found. */ | |
3030 | ||
3031 | do_cleanups (old_cleanups); | |
3032 | return 0; | |
3033 | } | |
3034 | ||
3035 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
3036 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
3037 | ||
3038 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
3039 | requiring halting of the search (e.g. memory read error). | |
3040 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
3041 | ||
3042 | int | |
3043 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
3044 | const gdb_byte *pattern, ULONGEST pattern_len, | |
3045 | CORE_ADDR *found_addrp) | |
3046 | { | |
3047 | struct target_ops *t; | |
3048 | int found; | |
3049 | ||
3050 | /* We don't use INHERIT to set current_target.to_search_memory, | |
3051 | so we have to scan the target stack and handle targetdebug | |
3052 | ourselves. */ | |
3053 | ||
3054 | if (targetdebug) | |
3055 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3056 | hex_string (start_addr)); | |
3057 | ||
3058 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3059 | if (t->to_search_memory != NULL) | |
3060 | break; | |
3061 | ||
3062 | if (t != NULL) | |
3063 | { | |
3064 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3065 | pattern, pattern_len, found_addrp); | |
3066 | } | |
3067 | else | |
3068 | { | |
3069 | /* If a special version of to_search_memory isn't available, use the | |
3070 | simple version. */ | |
c35b1492 | 3071 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3072 | start_addr, search_space_len, |
3073 | pattern, pattern_len, found_addrp); | |
3074 | } | |
3075 | ||
3076 | if (targetdebug) | |
3077 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3078 | ||
3079 | return found; | |
3080 | } | |
3081 | ||
8edfe269 DJ |
3082 | /* Look through the currently pushed targets. If none of them will |
3083 | be able to restart the currently running process, issue an error | |
3084 | message. */ | |
3085 | ||
3086 | void | |
3087 | target_require_runnable (void) | |
3088 | { | |
3089 | struct target_ops *t; | |
3090 | ||
3091 | for (t = target_stack; t != NULL; t = t->beneath) | |
3092 | { | |
3093 | /* If this target knows how to create a new program, then | |
3094 | assume we will still be able to after killing the current | |
3095 | one. Either killing and mourning will not pop T, or else | |
3096 | find_default_run_target will find it again. */ | |
3097 | if (t->to_create_inferior != NULL) | |
3098 | return; | |
3099 | ||
3100 | /* Do not worry about thread_stratum targets that can not | |
3101 | create inferiors. Assume they will be pushed again if | |
3102 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3103 | if (t->to_stratum == thread_stratum |
3104 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3105 | continue; |
3106 | ||
3e43a32a MS |
3107 | error (_("The \"%s\" target does not support \"run\". " |
3108 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3109 | t->to_shortname); |
3110 | } | |
3111 | ||
3112 | /* This function is only called if the target is running. In that | |
3113 | case there should have been a process_stratum target and it | |
c378eb4e | 3114 | should either know how to create inferiors, or not... */ |
9b20d036 | 3115 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3116 | } |
3117 | ||
c906108c SS |
3118 | /* Look through the list of possible targets for a target that can |
3119 | execute a run or attach command without any other data. This is | |
3120 | used to locate the default process stratum. | |
3121 | ||
5f667f2d PA |
3122 | If DO_MESG is not NULL, the result is always valid (error() is |
3123 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3124 | |
3125 | static struct target_ops * | |
fba45db2 | 3126 | find_default_run_target (char *do_mesg) |
c906108c SS |
3127 | { |
3128 | struct target_ops **t; | |
3129 | struct target_ops *runable = NULL; | |
3130 | int count; | |
3131 | ||
3132 | count = 0; | |
3133 | ||
3134 | for (t = target_structs; t < target_structs + target_struct_size; | |
3135 | ++t) | |
3136 | { | |
c5aa993b | 3137 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3138 | { |
3139 | runable = *t; | |
3140 | ++count; | |
3141 | } | |
3142 | } | |
3143 | ||
3144 | if (count != 1) | |
5f667f2d PA |
3145 | { |
3146 | if (do_mesg) | |
3147 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3148 | else | |
3149 | return NULL; | |
3150 | } | |
c906108c SS |
3151 | |
3152 | return runable; | |
3153 | } | |
3154 | ||
3155 | void | |
136d6dae | 3156 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3157 | { |
3158 | struct target_ops *t; | |
3159 | ||
c5aa993b | 3160 | t = find_default_run_target ("attach"); |
136d6dae | 3161 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3162 | return; |
3163 | } | |
3164 | ||
c906108c | 3165 | void |
136d6dae VP |
3166 | find_default_create_inferior (struct target_ops *ops, |
3167 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3168 | int from_tty) |
c906108c SS |
3169 | { |
3170 | struct target_ops *t; | |
3171 | ||
c5aa993b | 3172 | t = find_default_run_target ("run"); |
136d6dae | 3173 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3174 | return; |
3175 | } | |
3176 | ||
2c0b251b | 3177 | static int |
6a109b6b | 3178 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
3179 | { |
3180 | struct target_ops *t; | |
3181 | ||
5f667f2d PA |
3182 | /* This may be called before the target is pushed on the stack; |
3183 | look for the default process stratum. If there's none, gdb isn't | |
3184 | configured with a native debugger, and target remote isn't | |
3185 | connected yet. */ | |
3186 | t = find_default_run_target (NULL); | |
6b84065d | 3187 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 3188 | return (t->to_can_async_p) (t); |
b84876c2 PA |
3189 | return 0; |
3190 | } | |
3191 | ||
2c0b251b | 3192 | static int |
6a109b6b | 3193 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
3194 | { |
3195 | struct target_ops *t; | |
3196 | ||
5f667f2d PA |
3197 | /* This may be called before the target is pushed on the stack; |
3198 | look for the default process stratum. If there's none, gdb isn't | |
3199 | configured with a native debugger, and target remote isn't | |
3200 | connected yet. */ | |
3201 | t = find_default_run_target (NULL); | |
6b84065d | 3202 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 3203 | return (t->to_is_async_p) (t); |
b84876c2 PA |
3204 | return 0; |
3205 | } | |
3206 | ||
2c0b251b | 3207 | static int |
9908b566 VP |
3208 | find_default_supports_non_stop (void) |
3209 | { | |
3210 | struct target_ops *t; | |
3211 | ||
3212 | t = find_default_run_target (NULL); | |
3213 | if (t && t->to_supports_non_stop) | |
3214 | return (t->to_supports_non_stop) (); | |
3215 | return 0; | |
3216 | } | |
3217 | ||
3218 | int | |
2c0b251b | 3219 | target_supports_non_stop (void) |
9908b566 VP |
3220 | { |
3221 | struct target_ops *t; | |
5d502164 | 3222 | |
9908b566 VP |
3223 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3224 | if (t->to_supports_non_stop) | |
3225 | return t->to_supports_non_stop (); | |
3226 | ||
3227 | return 0; | |
3228 | } | |
3229 | ||
145b16a9 UW |
3230 | /* Implement the "info proc" command. */ |
3231 | ||
451b7c33 | 3232 | int |
145b16a9 UW |
3233 | target_info_proc (char *args, enum info_proc_what what) |
3234 | { | |
3235 | struct target_ops *t; | |
3236 | ||
3237 | /* If we're already connected to something that can get us OS | |
3238 | related data, use it. Otherwise, try using the native | |
3239 | target. */ | |
3240 | if (current_target.to_stratum >= process_stratum) | |
3241 | t = current_target.beneath; | |
3242 | else | |
3243 | t = find_default_run_target (NULL); | |
3244 | ||
3245 | for (; t != NULL; t = t->beneath) | |
3246 | { | |
3247 | if (t->to_info_proc != NULL) | |
3248 | { | |
3249 | t->to_info_proc (t, args, what); | |
3250 | ||
3251 | if (targetdebug) | |
3252 | fprintf_unfiltered (gdb_stdlog, | |
3253 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3254 | ||
451b7c33 | 3255 | return 1; |
145b16a9 UW |
3256 | } |
3257 | } | |
3258 | ||
451b7c33 | 3259 | return 0; |
145b16a9 UW |
3260 | } |
3261 | ||
03583c20 UW |
3262 | static int |
3263 | find_default_supports_disable_randomization (void) | |
3264 | { | |
3265 | struct target_ops *t; | |
3266 | ||
3267 | t = find_default_run_target (NULL); | |
3268 | if (t && t->to_supports_disable_randomization) | |
3269 | return (t->to_supports_disable_randomization) (); | |
3270 | return 0; | |
3271 | } | |
3272 | ||
3273 | int | |
3274 | target_supports_disable_randomization (void) | |
3275 | { | |
3276 | struct target_ops *t; | |
3277 | ||
3278 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3279 | if (t->to_supports_disable_randomization) | |
3280 | return t->to_supports_disable_randomization (); | |
3281 | ||
3282 | return 0; | |
3283 | } | |
9908b566 | 3284 | |
07e059b5 VP |
3285 | char * |
3286 | target_get_osdata (const char *type) | |
3287 | { | |
07e059b5 VP |
3288 | struct target_ops *t; |
3289 | ||
739ef7fb PA |
3290 | /* If we're already connected to something that can get us OS |
3291 | related data, use it. Otherwise, try using the native | |
3292 | target. */ | |
3293 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3294 | t = current_target.beneath; |
739ef7fb PA |
3295 | else |
3296 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3297 | |
3298 | if (!t) | |
3299 | return NULL; | |
3300 | ||
6d097e65 | 3301 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3302 | } |
3303 | ||
6c95b8df PA |
3304 | /* Determine the current address space of thread PTID. */ |
3305 | ||
3306 | struct address_space * | |
3307 | target_thread_address_space (ptid_t ptid) | |
3308 | { | |
c0694254 | 3309 | struct address_space *aspace; |
6c95b8df | 3310 | struct inferior *inf; |
c0694254 PA |
3311 | struct target_ops *t; |
3312 | ||
3313 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3314 | { | |
3315 | if (t->to_thread_address_space != NULL) | |
3316 | { | |
3317 | aspace = t->to_thread_address_space (t, ptid); | |
3318 | gdb_assert (aspace); | |
6c95b8df | 3319 | |
c0694254 PA |
3320 | if (targetdebug) |
3321 | fprintf_unfiltered (gdb_stdlog, | |
3322 | "target_thread_address_space (%s) = %d\n", | |
3323 | target_pid_to_str (ptid), | |
3324 | address_space_num (aspace)); | |
3325 | return aspace; | |
3326 | } | |
3327 | } | |
6c95b8df PA |
3328 | |
3329 | /* Fall-back to the "main" address space of the inferior. */ | |
3330 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3331 | ||
3332 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3333 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3334 | _("Can't determine the current " |
3335 | "address space of thread %s\n"), | |
6c95b8df PA |
3336 | target_pid_to_str (ptid)); |
3337 | ||
3338 | return inf->aspace; | |
3339 | } | |
3340 | ||
7313baad UW |
3341 | |
3342 | /* Target file operations. */ | |
3343 | ||
3344 | static struct target_ops * | |
3345 | default_fileio_target (void) | |
3346 | { | |
3347 | /* If we're already connected to something that can perform | |
3348 | file I/O, use it. Otherwise, try using the native target. */ | |
3349 | if (current_target.to_stratum >= process_stratum) | |
3350 | return current_target.beneath; | |
3351 | else | |
3352 | return find_default_run_target ("file I/O"); | |
3353 | } | |
3354 | ||
3355 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3356 | target file descriptor, or -1 if an error occurs (and set | |
3357 | *TARGET_ERRNO). */ | |
3358 | int | |
3359 | target_fileio_open (const char *filename, int flags, int mode, | |
3360 | int *target_errno) | |
3361 | { | |
3362 | struct target_ops *t; | |
3363 | ||
3364 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3365 | { | |
3366 | if (t->to_fileio_open != NULL) | |
3367 | { | |
3368 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3369 | ||
3370 | if (targetdebug) | |
3371 | fprintf_unfiltered (gdb_stdlog, | |
3372 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3373 | filename, flags, mode, | |
3374 | fd, fd != -1 ? 0 : *target_errno); | |
3375 | return fd; | |
3376 | } | |
3377 | } | |
3378 | ||
3379 | *target_errno = FILEIO_ENOSYS; | |
3380 | return -1; | |
3381 | } | |
3382 | ||
3383 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3384 | Return the number of bytes written, or -1 if an error occurs | |
3385 | (and set *TARGET_ERRNO). */ | |
3386 | int | |
3387 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3388 | ULONGEST offset, int *target_errno) | |
3389 | { | |
3390 | struct target_ops *t; | |
3391 | ||
3392 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3393 | { | |
3394 | if (t->to_fileio_pwrite != NULL) | |
3395 | { | |
3396 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3397 | target_errno); | |
3398 | ||
3399 | if (targetdebug) | |
3400 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3401 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3402 | "= %d (%d)\n", |
a71b5a38 | 3403 | fd, len, pulongest (offset), |
7313baad UW |
3404 | ret, ret != -1 ? 0 : *target_errno); |
3405 | return ret; | |
3406 | } | |
3407 | } | |
3408 | ||
3409 | *target_errno = FILEIO_ENOSYS; | |
3410 | return -1; | |
3411 | } | |
3412 | ||
3413 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3414 | Return the number of bytes read, or -1 if an error occurs | |
3415 | (and set *TARGET_ERRNO). */ | |
3416 | int | |
3417 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3418 | ULONGEST offset, int *target_errno) | |
3419 | { | |
3420 | struct target_ops *t; | |
3421 | ||
3422 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3423 | { | |
3424 | if (t->to_fileio_pread != NULL) | |
3425 | { | |
3426 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3427 | target_errno); | |
3428 | ||
3429 | if (targetdebug) | |
3430 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3431 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3432 | "= %d (%d)\n", |
a71b5a38 | 3433 | fd, len, pulongest (offset), |
7313baad UW |
3434 | ret, ret != -1 ? 0 : *target_errno); |
3435 | return ret; | |
3436 | } | |
3437 | } | |
3438 | ||
3439 | *target_errno = FILEIO_ENOSYS; | |
3440 | return -1; | |
3441 | } | |
3442 | ||
3443 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3444 | (and set *TARGET_ERRNO). */ | |
3445 | int | |
3446 | target_fileio_close (int fd, int *target_errno) | |
3447 | { | |
3448 | struct target_ops *t; | |
3449 | ||
3450 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3451 | { | |
3452 | if (t->to_fileio_close != NULL) | |
3453 | { | |
3454 | int ret = t->to_fileio_close (fd, target_errno); | |
3455 | ||
3456 | if (targetdebug) | |
3457 | fprintf_unfiltered (gdb_stdlog, | |
3458 | "target_fileio_close (%d) = %d (%d)\n", | |
3459 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3460 | return ret; | |
3461 | } | |
3462 | } | |
3463 | ||
3464 | *target_errno = FILEIO_ENOSYS; | |
3465 | return -1; | |
3466 | } | |
3467 | ||
3468 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3469 | occurs (and set *TARGET_ERRNO). */ | |
3470 | int | |
3471 | target_fileio_unlink (const char *filename, int *target_errno) | |
3472 | { | |
3473 | struct target_ops *t; | |
3474 | ||
3475 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3476 | { | |
3477 | if (t->to_fileio_unlink != NULL) | |
3478 | { | |
3479 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3480 | ||
3481 | if (targetdebug) | |
3482 | fprintf_unfiltered (gdb_stdlog, | |
3483 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3484 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3485 | return ret; | |
3486 | } | |
3487 | } | |
3488 | ||
3489 | *target_errno = FILEIO_ENOSYS; | |
3490 | return -1; | |
3491 | } | |
3492 | ||
b9e7b9c3 UW |
3493 | /* Read value of symbolic link FILENAME on the target. Return a |
3494 | null-terminated string allocated via xmalloc, or NULL if an error | |
3495 | occurs (and set *TARGET_ERRNO). */ | |
3496 | char * | |
3497 | target_fileio_readlink (const char *filename, int *target_errno) | |
3498 | { | |
3499 | struct target_ops *t; | |
3500 | ||
3501 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3502 | { | |
3503 | if (t->to_fileio_readlink != NULL) | |
3504 | { | |
3505 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3506 | ||
3507 | if (targetdebug) | |
3508 | fprintf_unfiltered (gdb_stdlog, | |
3509 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3510 | filename, ret? ret : "(nil)", | |
3511 | ret? 0 : *target_errno); | |
3512 | return ret; | |
3513 | } | |
3514 | } | |
3515 | ||
3516 | *target_errno = FILEIO_ENOSYS; | |
3517 | return NULL; | |
3518 | } | |
3519 | ||
7313baad UW |
3520 | static void |
3521 | target_fileio_close_cleanup (void *opaque) | |
3522 | { | |
3523 | int fd = *(int *) opaque; | |
3524 | int target_errno; | |
3525 | ||
3526 | target_fileio_close (fd, &target_errno); | |
3527 | } | |
3528 | ||
3529 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3530 | return the size of the transferred data. PADDING additional bytes are | |
3531 | available in *BUF_P. This is a helper function for | |
3532 | target_fileio_read_alloc; see the declaration of that function for more | |
3533 | information. */ | |
3534 | ||
3535 | static LONGEST | |
3536 | target_fileio_read_alloc_1 (const char *filename, | |
3537 | gdb_byte **buf_p, int padding) | |
3538 | { | |
3539 | struct cleanup *close_cleanup; | |
3540 | size_t buf_alloc, buf_pos; | |
3541 | gdb_byte *buf; | |
3542 | LONGEST n; | |
3543 | int fd; | |
3544 | int target_errno; | |
3545 | ||
3546 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3547 | if (fd == -1) | |
3548 | return -1; | |
3549 | ||
3550 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3551 | ||
3552 | /* Start by reading up to 4K at a time. The target will throttle | |
3553 | this number down if necessary. */ | |
3554 | buf_alloc = 4096; | |
3555 | buf = xmalloc (buf_alloc); | |
3556 | buf_pos = 0; | |
3557 | while (1) | |
3558 | { | |
3559 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3560 | buf_alloc - buf_pos - padding, buf_pos, | |
3561 | &target_errno); | |
3562 | if (n < 0) | |
3563 | { | |
3564 | /* An error occurred. */ | |
3565 | do_cleanups (close_cleanup); | |
3566 | xfree (buf); | |
3567 | return -1; | |
3568 | } | |
3569 | else if (n == 0) | |
3570 | { | |
3571 | /* Read all there was. */ | |
3572 | do_cleanups (close_cleanup); | |
3573 | if (buf_pos == 0) | |
3574 | xfree (buf); | |
3575 | else | |
3576 | *buf_p = buf; | |
3577 | return buf_pos; | |
3578 | } | |
3579 | ||
3580 | buf_pos += n; | |
3581 | ||
3582 | /* If the buffer is filling up, expand it. */ | |
3583 | if (buf_alloc < buf_pos * 2) | |
3584 | { | |
3585 | buf_alloc *= 2; | |
3586 | buf = xrealloc (buf, buf_alloc); | |
3587 | } | |
3588 | ||
3589 | QUIT; | |
3590 | } | |
3591 | } | |
3592 | ||
3593 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3594 | the size of the transferred data. See the declaration in "target.h" | |
3595 | function for more information about the return value. */ | |
3596 | ||
3597 | LONGEST | |
3598 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3599 | { | |
3600 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3601 | } | |
3602 | ||
3603 | /* Read target file FILENAME. The result is NUL-terminated and | |
3604 | returned as a string, allocated using xmalloc. If an error occurs | |
3605 | or the transfer is unsupported, NULL is returned. Empty objects | |
3606 | are returned as allocated but empty strings. A warning is issued | |
3607 | if the result contains any embedded NUL bytes. */ | |
3608 | ||
3609 | char * | |
3610 | target_fileio_read_stralloc (const char *filename) | |
3611 | { | |
39086a0e PA |
3612 | gdb_byte *buffer; |
3613 | char *bufstr; | |
7313baad UW |
3614 | LONGEST i, transferred; |
3615 | ||
39086a0e PA |
3616 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3617 | bufstr = (char *) buffer; | |
7313baad UW |
3618 | |
3619 | if (transferred < 0) | |
3620 | return NULL; | |
3621 | ||
3622 | if (transferred == 0) | |
3623 | return xstrdup (""); | |
3624 | ||
39086a0e | 3625 | bufstr[transferred] = 0; |
7313baad UW |
3626 | |
3627 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3628 | for (i = strlen (bufstr); i < transferred; i++) |
3629 | if (bufstr[i] != 0) | |
7313baad UW |
3630 | { |
3631 | warning (_("target file %s " | |
3632 | "contained unexpected null characters"), | |
3633 | filename); | |
3634 | break; | |
3635 | } | |
3636 | ||
39086a0e | 3637 | return bufstr; |
7313baad UW |
3638 | } |
3639 | ||
3640 | ||
e0d24f8d WZ |
3641 | static int |
3642 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3643 | { | |
f5656ead | 3644 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3645 | } |
3646 | ||
5009afc5 AS |
3647 | static int |
3648 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3649 | CORE_ADDR addr, | |
3650 | CORE_ADDR start, int length) | |
3651 | { | |
3652 | return addr >= start && addr < start + length; | |
3653 | } | |
3654 | ||
c2250ad1 UW |
3655 | static struct gdbarch * |
3656 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3657 | { | |
f5656ead | 3658 | return target_gdbarch (); |
c2250ad1 UW |
3659 | } |
3660 | ||
c906108c | 3661 | static int |
fba45db2 | 3662 | return_zero (void) |
c906108c SS |
3663 | { |
3664 | return 0; | |
3665 | } | |
3666 | ||
3667 | static int | |
fba45db2 | 3668 | return_one (void) |
c906108c SS |
3669 | { |
3670 | return 1; | |
3671 | } | |
3672 | ||
ccaa32c7 GS |
3673 | static int |
3674 | return_minus_one (void) | |
3675 | { | |
3676 | return -1; | |
3677 | } | |
3678 | ||
1b67eb02 AS |
3679 | static void * |
3680 | return_null (void) | |
3681 | { | |
3682 | return 0; | |
3683 | } | |
3684 | ||
ed9a39eb JM |
3685 | /* |
3686 | * Find the next target down the stack from the specified target. | |
3687 | */ | |
3688 | ||
3689 | struct target_ops * | |
fba45db2 | 3690 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3691 | { |
258b763a | 3692 | return t->beneath; |
ed9a39eb JM |
3693 | } |
3694 | ||
8b06beed TT |
3695 | /* See target.h. */ |
3696 | ||
3697 | struct target_ops * | |
3698 | find_target_at (enum strata stratum) | |
3699 | { | |
3700 | struct target_ops *t; | |
3701 | ||
3702 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3703 | if (t->to_stratum == stratum) | |
3704 | return t; | |
3705 | ||
3706 | return NULL; | |
3707 | } | |
3708 | ||
c906108c SS |
3709 | \f |
3710 | /* The inferior process has died. Long live the inferior! */ | |
3711 | ||
3712 | void | |
fba45db2 | 3713 | generic_mourn_inferior (void) |
c906108c | 3714 | { |
7f9f62ba | 3715 | ptid_t ptid; |
c906108c | 3716 | |
7f9f62ba | 3717 | ptid = inferior_ptid; |
39f77062 | 3718 | inferior_ptid = null_ptid; |
7f9f62ba | 3719 | |
f59f708a PA |
3720 | /* Mark breakpoints uninserted in case something tries to delete a |
3721 | breakpoint while we delete the inferior's threads (which would | |
3722 | fail, since the inferior is long gone). */ | |
3723 | mark_breakpoints_out (); | |
3724 | ||
7f9f62ba PA |
3725 | if (!ptid_equal (ptid, null_ptid)) |
3726 | { | |
3727 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3728 | exit_inferior (pid); |
7f9f62ba PA |
3729 | } |
3730 | ||
f59f708a PA |
3731 | /* Note this wipes step-resume breakpoints, so needs to be done |
3732 | after exit_inferior, which ends up referencing the step-resume | |
3733 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3734 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3735 | |
c906108c SS |
3736 | registers_changed (); |
3737 | ||
c906108c SS |
3738 | reopen_exec_file (); |
3739 | reinit_frame_cache (); | |
3740 | ||
9a4105ab AC |
3741 | if (deprecated_detach_hook) |
3742 | deprecated_detach_hook (); | |
c906108c SS |
3743 | } |
3744 | \f | |
fd0a2a6f MK |
3745 | /* Convert a normal process ID to a string. Returns the string in a |
3746 | static buffer. */ | |
c906108c SS |
3747 | |
3748 | char * | |
39f77062 | 3749 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3750 | { |
fd0a2a6f | 3751 | static char buf[32]; |
c906108c | 3752 | |
5fff8fc0 | 3753 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3754 | return buf; |
3755 | } | |
3756 | ||
2c0b251b | 3757 | static char * |
117de6a9 PA |
3758 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3759 | { | |
3760 | return normal_pid_to_str (ptid); | |
3761 | } | |
3762 | ||
9b4eba8e HZ |
3763 | /* Error-catcher for target_find_memory_regions. */ |
3764 | static int | |
b8edc417 | 3765 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3766 | { |
9b4eba8e | 3767 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3768 | return 0; |
3769 | } | |
3770 | ||
9b4eba8e HZ |
3771 | /* Error-catcher for target_make_corefile_notes. */ |
3772 | static char * | |
3773 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3774 | { |
9b4eba8e | 3775 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3776 | return NULL; |
3777 | } | |
3778 | ||
6b04bdb7 MS |
3779 | /* Error-catcher for target_get_bookmark. */ |
3780 | static gdb_byte * | |
3781 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3782 | { | |
3783 | tcomplain (); | |
3784 | return NULL; | |
3785 | } | |
3786 | ||
3787 | /* Error-catcher for target_goto_bookmark. */ | |
3788 | static void | |
3789 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3790 | { | |
3791 | tcomplain (); | |
3792 | } | |
3793 | ||
c906108c SS |
3794 | /* Set up the handful of non-empty slots needed by the dummy target |
3795 | vector. */ | |
3796 | ||
3797 | static void | |
fba45db2 | 3798 | init_dummy_target (void) |
c906108c SS |
3799 | { |
3800 | dummy_target.to_shortname = "None"; | |
3801 | dummy_target.to_longname = "None"; | |
3802 | dummy_target.to_doc = ""; | |
3803 | dummy_target.to_attach = find_default_attach; | |
136d6dae | 3804 | dummy_target.to_detach = |
52554a0e | 3805 | (void (*)(struct target_ops *, const char *, int))target_ignore; |
c906108c | 3806 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3807 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3808 | dummy_target.to_supports_disable_randomization |
3809 | = find_default_supports_disable_randomization; | |
117de6a9 | 3810 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3811 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3812 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3813 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3814 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3815 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
c35b1492 PA |
3816 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3817 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3818 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3819 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3820 | dummy_target.to_has_execution |
3821 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3822 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3823 | |
3824 | install_dummy_methods (&dummy_target); | |
c906108c | 3825 | } |
c906108c | 3826 | \f |
c906108c | 3827 | static void |
fba45db2 | 3828 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3829 | { |
3830 | debug_target.to_open (args, from_tty); | |
3831 | ||
96baa820 | 3832 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3833 | } |
3834 | ||
f1c07ab0 | 3835 | void |
460014f5 | 3836 | target_close (struct target_ops *targ) |
f1c07ab0 | 3837 | { |
7fdc1521 TT |
3838 | gdb_assert (!target_is_pushed (targ)); |
3839 | ||
f1c07ab0 | 3840 | if (targ->to_xclose != NULL) |
460014f5 | 3841 | targ->to_xclose (targ); |
f1c07ab0 | 3842 | else if (targ->to_close != NULL) |
de90e03d | 3843 | targ->to_close (targ); |
947b8855 PA |
3844 | |
3845 | if (targetdebug) | |
460014f5 | 3846 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3847 | } |
3848 | ||
136d6dae VP |
3849 | void |
3850 | target_attach (char *args, int from_tty) | |
3851 | { | |
3852 | struct target_ops *t; | |
5d502164 | 3853 | |
136d6dae VP |
3854 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3855 | { | |
3856 | if (t->to_attach != NULL) | |
3857 | { | |
3858 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3859 | if (targetdebug) |
3860 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3861 | args, from_tty); | |
136d6dae VP |
3862 | return; |
3863 | } | |
3864 | } | |
3865 | ||
3866 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3867 | _("could not find a target to attach")); |
136d6dae VP |
3868 | } |
3869 | ||
28439f5e PA |
3870 | int |
3871 | target_thread_alive (ptid_t ptid) | |
c906108c | 3872 | { |
28439f5e | 3873 | struct target_ops *t; |
5d502164 | 3874 | |
28439f5e PA |
3875 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3876 | { | |
3877 | if (t->to_thread_alive != NULL) | |
3878 | { | |
3879 | int retval; | |
c906108c | 3880 | |
28439f5e PA |
3881 | retval = t->to_thread_alive (t, ptid); |
3882 | if (targetdebug) | |
3883 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3884 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3885 | |
3886 | return retval; | |
3887 | } | |
3888 | } | |
3889 | ||
3890 | return 0; | |
3891 | } | |
3892 | ||
3893 | void | |
3894 | target_find_new_threads (void) | |
3895 | { | |
3896 | struct target_ops *t; | |
5d502164 | 3897 | |
28439f5e PA |
3898 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3899 | { | |
3900 | if (t->to_find_new_threads != NULL) | |
3901 | { | |
3902 | t->to_find_new_threads (t); | |
3903 | if (targetdebug) | |
3904 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3905 | ||
3906 | return; | |
3907 | } | |
3908 | } | |
c906108c SS |
3909 | } |
3910 | ||
d914c394 SS |
3911 | void |
3912 | target_stop (ptid_t ptid) | |
3913 | { | |
3914 | if (!may_stop) | |
3915 | { | |
3916 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3917 | return; | |
3918 | } | |
3919 | ||
3920 | (*current_target.to_stop) (ptid); | |
3921 | } | |
3922 | ||
c906108c | 3923 | static void |
f045800c | 3924 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3925 | { |
f045800c | 3926 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3927 | |
28439f5e | 3928 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3929 | } |
3930 | ||
09826ec5 PA |
3931 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3932 | result. The LIST incoming argument is released. */ | |
3933 | ||
3934 | static char * | |
3935 | str_comma_list_concat_elem (char *list, const char *elem) | |
3936 | { | |
3937 | if (list == NULL) | |
3938 | return xstrdup (elem); | |
3939 | else | |
3940 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3941 | } | |
3942 | ||
3943 | /* Helper for target_options_to_string. If OPT is present in | |
3944 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3945 | Returns the new resulting string. OPT is removed from | |
3946 | TARGET_OPTIONS. */ | |
3947 | ||
3948 | static char * | |
3949 | do_option (int *target_options, char *ret, | |
3950 | int opt, char *opt_str) | |
3951 | { | |
3952 | if ((*target_options & opt) != 0) | |
3953 | { | |
3954 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3955 | *target_options &= ~opt; | |
3956 | } | |
3957 | ||
3958 | return ret; | |
3959 | } | |
3960 | ||
3961 | char * | |
3962 | target_options_to_string (int target_options) | |
3963 | { | |
3964 | char *ret = NULL; | |
3965 | ||
3966 | #define DO_TARG_OPTION(OPT) \ | |
3967 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3968 | ||
3969 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3970 | ||
3971 | if (target_options != 0) | |
3972 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3973 | ||
3974 | if (ret == NULL) | |
3975 | ret = xstrdup (""); | |
3976 | return ret; | |
3977 | } | |
3978 | ||
bf0c5130 | 3979 | static void |
56be3814 UW |
3980 | debug_print_register (const char * func, |
3981 | struct regcache *regcache, int regno) | |
bf0c5130 | 3982 | { |
f8d29908 | 3983 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3984 | |
bf0c5130 | 3985 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3986 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3987 | && gdbarch_register_name (gdbarch, regno) != NULL |
3988 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3989 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3990 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3991 | else |
3992 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3993 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3994 | { |
e17a4113 | 3995 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3996 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3997 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3998 | |
0ff58721 | 3999 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 4000 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 4001 | for (i = 0; i < size; i++) |
bf0c5130 AC |
4002 | { |
4003 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
4004 | } | |
81c4a259 | 4005 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 4006 | { |
e17a4113 | 4007 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 4008 | |
0b1553bc UW |
4009 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
4010 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
4011 | } |
4012 | } | |
4013 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4014 | } | |
4015 | ||
28439f5e PA |
4016 | void |
4017 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 4018 | { |
28439f5e | 4019 | struct target_ops *t; |
5d502164 | 4020 | |
28439f5e PA |
4021 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
4022 | { | |
4023 | if (t->to_fetch_registers != NULL) | |
4024 | { | |
4025 | t->to_fetch_registers (t, regcache, regno); | |
4026 | if (targetdebug) | |
4027 | debug_print_register ("target_fetch_registers", regcache, regno); | |
4028 | return; | |
4029 | } | |
4030 | } | |
c906108c SS |
4031 | } |
4032 | ||
28439f5e PA |
4033 | void |
4034 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 4035 | { |
28439f5e | 4036 | struct target_ops *t; |
5d502164 | 4037 | |
d914c394 SS |
4038 | if (!may_write_registers) |
4039 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
4040 | ||
6b84065d TT |
4041 | current_target.to_store_registers (¤t_target, regcache, regno); |
4042 | if (targetdebug) | |
28439f5e | 4043 | { |
6b84065d | 4044 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 4045 | } |
c906108c SS |
4046 | } |
4047 | ||
dc146f7c VP |
4048 | int |
4049 | target_core_of_thread (ptid_t ptid) | |
4050 | { | |
4051 | struct target_ops *t; | |
4052 | ||
4053 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4054 | { | |
4055 | if (t->to_core_of_thread != NULL) | |
4056 | { | |
4057 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 4058 | |
dc146f7c | 4059 | if (targetdebug) |
3e43a32a MS |
4060 | fprintf_unfiltered (gdb_stdlog, |
4061 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 4062 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
4063 | return retval; |
4064 | } | |
4065 | } | |
4066 | ||
4067 | return -1; | |
4068 | } | |
4069 | ||
4a5e7a5b PA |
4070 | int |
4071 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4072 | { | |
4073 | struct target_ops *t; | |
4074 | ||
4075 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4076 | { | |
4077 | if (t->to_verify_memory != NULL) | |
4078 | { | |
4079 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4080 | |
4a5e7a5b | 4081 | if (targetdebug) |
3e43a32a MS |
4082 | fprintf_unfiltered (gdb_stdlog, |
4083 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4084 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4085 | pulongest (size), |
4086 | retval); | |
4087 | return retval; | |
4088 | } | |
4089 | } | |
4090 | ||
4091 | tcomplain (); | |
4092 | } | |
4093 | ||
9c06b0b4 TJB |
4094 | /* The documentation for this function is in its prototype declaration in |
4095 | target.h. */ | |
4096 | ||
4097 | int | |
4098 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4099 | { | |
4100 | struct target_ops *t; | |
4101 | ||
4102 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4103 | if (t->to_insert_mask_watchpoint != NULL) | |
4104 | { | |
4105 | int ret; | |
4106 | ||
4107 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4108 | ||
4109 | if (targetdebug) | |
4110 | fprintf_unfiltered (gdb_stdlog, "\ | |
4111 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4112 | core_addr_to_string (addr), | |
4113 | core_addr_to_string (mask), rw, ret); | |
4114 | ||
4115 | return ret; | |
4116 | } | |
4117 | ||
4118 | return 1; | |
4119 | } | |
4120 | ||
4121 | /* The documentation for this function is in its prototype declaration in | |
4122 | target.h. */ | |
4123 | ||
4124 | int | |
4125 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4126 | { | |
4127 | struct target_ops *t; | |
4128 | ||
4129 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4130 | if (t->to_remove_mask_watchpoint != NULL) | |
4131 | { | |
4132 | int ret; | |
4133 | ||
4134 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4135 | ||
4136 | if (targetdebug) | |
4137 | fprintf_unfiltered (gdb_stdlog, "\ | |
4138 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4139 | core_addr_to_string (addr), | |
4140 | core_addr_to_string (mask), rw, ret); | |
4141 | ||
4142 | return ret; | |
4143 | } | |
4144 | ||
4145 | return 1; | |
4146 | } | |
4147 | ||
4148 | /* The documentation for this function is in its prototype declaration | |
4149 | in target.h. */ | |
4150 | ||
4151 | int | |
4152 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4153 | { | |
4154 | struct target_ops *t; | |
4155 | ||
4156 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4157 | if (t->to_masked_watch_num_registers != NULL) | |
4158 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4159 | ||
4160 | return -1; | |
4161 | } | |
4162 | ||
f1310107 TJB |
4163 | /* The documentation for this function is in its prototype declaration |
4164 | in target.h. */ | |
4165 | ||
4166 | int | |
4167 | target_ranged_break_num_registers (void) | |
4168 | { | |
4169 | struct target_ops *t; | |
4170 | ||
4171 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4172 | if (t->to_ranged_break_num_registers != NULL) | |
4173 | return t->to_ranged_break_num_registers (t); | |
4174 | ||
4175 | return -1; | |
4176 | } | |
4177 | ||
02d27625 MM |
4178 | /* See target.h. */ |
4179 | ||
02d27625 MM |
4180 | struct btrace_target_info * |
4181 | target_enable_btrace (ptid_t ptid) | |
4182 | { | |
4183 | struct target_ops *t; | |
4184 | ||
4185 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4186 | if (t->to_enable_btrace != NULL) | |
4187 | return t->to_enable_btrace (ptid); | |
4188 | ||
4189 | tcomplain (); | |
4190 | return NULL; | |
4191 | } | |
4192 | ||
4193 | /* See target.h. */ | |
4194 | ||
4195 | void | |
4196 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4197 | { | |
4198 | struct target_ops *t; | |
4199 | ||
4200 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4201 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 SDJ |
4202 | { |
4203 | t->to_disable_btrace (btinfo); | |
4204 | return; | |
4205 | } | |
02d27625 MM |
4206 | |
4207 | tcomplain (); | |
4208 | } | |
4209 | ||
4210 | /* See target.h. */ | |
4211 | ||
4212 | void | |
4213 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4214 | { | |
4215 | struct target_ops *t; | |
4216 | ||
4217 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4218 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 SDJ |
4219 | { |
4220 | t->to_teardown_btrace (btinfo); | |
4221 | return; | |
4222 | } | |
02d27625 MM |
4223 | |
4224 | tcomplain (); | |
4225 | } | |
4226 | ||
4227 | /* See target.h. */ | |
4228 | ||
969c39fb MM |
4229 | enum btrace_error |
4230 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
4231 | struct btrace_target_info *btinfo, | |
02d27625 MM |
4232 | enum btrace_read_type type) |
4233 | { | |
4234 | struct target_ops *t; | |
4235 | ||
4236 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4237 | if (t->to_read_btrace != NULL) | |
969c39fb | 4238 | return t->to_read_btrace (btrace, btinfo, type); |
02d27625 MM |
4239 | |
4240 | tcomplain (); | |
969c39fb | 4241 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
4242 | } |
4243 | ||
d02ed0bb MM |
4244 | /* See target.h. */ |
4245 | ||
7c1687a9 MM |
4246 | void |
4247 | target_stop_recording (void) | |
4248 | { | |
4249 | struct target_ops *t; | |
4250 | ||
4251 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4252 | if (t->to_stop_recording != NULL) | |
4253 | { | |
4254 | t->to_stop_recording (); | |
4255 | return; | |
4256 | } | |
4257 | ||
4258 | /* This is optional. */ | |
4259 | } | |
4260 | ||
4261 | /* See target.h. */ | |
4262 | ||
d02ed0bb MM |
4263 | void |
4264 | target_info_record (void) | |
4265 | { | |
4266 | struct target_ops *t; | |
4267 | ||
4268 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4269 | if (t->to_info_record != NULL) | |
4270 | { | |
4271 | t->to_info_record (); | |
4272 | return; | |
4273 | } | |
4274 | ||
4275 | tcomplain (); | |
4276 | } | |
4277 | ||
4278 | /* See target.h. */ | |
4279 | ||
4280 | void | |
85e1311a | 4281 | target_save_record (const char *filename) |
d02ed0bb MM |
4282 | { |
4283 | struct target_ops *t; | |
4284 | ||
4285 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4286 | if (t->to_save_record != NULL) | |
4287 | { | |
4288 | t->to_save_record (filename); | |
4289 | return; | |
4290 | } | |
4291 | ||
4292 | tcomplain (); | |
4293 | } | |
4294 | ||
4295 | /* See target.h. */ | |
4296 | ||
4297 | int | |
4298 | target_supports_delete_record (void) | |
4299 | { | |
4300 | struct target_ops *t; | |
4301 | ||
4302 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4303 | if (t->to_delete_record != NULL) | |
4304 | return 1; | |
4305 | ||
4306 | return 0; | |
4307 | } | |
4308 | ||
4309 | /* See target.h. */ | |
4310 | ||
4311 | void | |
4312 | target_delete_record (void) | |
4313 | { | |
4314 | struct target_ops *t; | |
4315 | ||
4316 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4317 | if (t->to_delete_record != NULL) | |
4318 | { | |
4319 | t->to_delete_record (); | |
4320 | return; | |
4321 | } | |
4322 | ||
4323 | tcomplain (); | |
4324 | } | |
4325 | ||
4326 | /* See target.h. */ | |
4327 | ||
4328 | int | |
4329 | target_record_is_replaying (void) | |
4330 | { | |
4331 | struct target_ops *t; | |
4332 | ||
4333 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4334 | if (t->to_record_is_replaying != NULL) | |
4335 | return t->to_record_is_replaying (); | |
4336 | ||
4337 | return 0; | |
4338 | } | |
4339 | ||
4340 | /* See target.h. */ | |
4341 | ||
4342 | void | |
4343 | target_goto_record_begin (void) | |
4344 | { | |
4345 | struct target_ops *t; | |
4346 | ||
4347 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4348 | if (t->to_goto_record_begin != NULL) | |
4349 | { | |
4350 | t->to_goto_record_begin (); | |
4351 | return; | |
4352 | } | |
4353 | ||
4354 | tcomplain (); | |
4355 | } | |
4356 | ||
4357 | /* See target.h. */ | |
4358 | ||
4359 | void | |
4360 | target_goto_record_end (void) | |
4361 | { | |
4362 | struct target_ops *t; | |
4363 | ||
4364 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4365 | if (t->to_goto_record_end != NULL) | |
4366 | { | |
4367 | t->to_goto_record_end (); | |
4368 | return; | |
4369 | } | |
4370 | ||
4371 | tcomplain (); | |
4372 | } | |
4373 | ||
4374 | /* See target.h. */ | |
4375 | ||
4376 | void | |
4377 | target_goto_record (ULONGEST insn) | |
4378 | { | |
4379 | struct target_ops *t; | |
4380 | ||
4381 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4382 | if (t->to_goto_record != NULL) | |
4383 | { | |
4384 | t->to_goto_record (insn); | |
4385 | return; | |
4386 | } | |
4387 | ||
4388 | tcomplain (); | |
4389 | } | |
4390 | ||
67c86d06 MM |
4391 | /* See target.h. */ |
4392 | ||
4393 | void | |
4394 | target_insn_history (int size, int flags) | |
4395 | { | |
4396 | struct target_ops *t; | |
4397 | ||
4398 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4399 | if (t->to_insn_history != NULL) | |
4400 | { | |
4401 | t->to_insn_history (size, flags); | |
4402 | return; | |
4403 | } | |
4404 | ||
4405 | tcomplain (); | |
4406 | } | |
4407 | ||
4408 | /* See target.h. */ | |
4409 | ||
4410 | void | |
4411 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4412 | { | |
4413 | struct target_ops *t; | |
4414 | ||
4415 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4416 | if (t->to_insn_history_from != NULL) | |
4417 | { | |
4418 | t->to_insn_history_from (from, size, flags); | |
4419 | return; | |
4420 | } | |
4421 | ||
4422 | tcomplain (); | |
4423 | } | |
4424 | ||
4425 | /* See target.h. */ | |
4426 | ||
4427 | void | |
4428 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4429 | { | |
4430 | struct target_ops *t; | |
4431 | ||
4432 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4433 | if (t->to_insn_history_range != NULL) | |
4434 | { | |
4435 | t->to_insn_history_range (begin, end, flags); | |
4436 | return; | |
4437 | } | |
4438 | ||
4439 | tcomplain (); | |
4440 | } | |
4441 | ||
15984c13 MM |
4442 | /* See target.h. */ |
4443 | ||
4444 | void | |
4445 | target_call_history (int size, int flags) | |
4446 | { | |
4447 | struct target_ops *t; | |
4448 | ||
4449 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4450 | if (t->to_call_history != NULL) | |
4451 | { | |
4452 | t->to_call_history (size, flags); | |
4453 | return; | |
4454 | } | |
4455 | ||
4456 | tcomplain (); | |
4457 | } | |
4458 | ||
4459 | /* See target.h. */ | |
4460 | ||
4461 | void | |
4462 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4463 | { | |
4464 | struct target_ops *t; | |
4465 | ||
4466 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4467 | if (t->to_call_history_from != NULL) | |
4468 | { | |
4469 | t->to_call_history_from (begin, size, flags); | |
4470 | return; | |
4471 | } | |
4472 | ||
4473 | tcomplain (); | |
4474 | } | |
4475 | ||
4476 | /* See target.h. */ | |
4477 | ||
4478 | void | |
4479 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4480 | { | |
4481 | struct target_ops *t; | |
4482 | ||
4483 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4484 | if (t->to_call_history_range != NULL) | |
4485 | { | |
4486 | t->to_call_history_range (begin, end, flags); | |
4487 | return; | |
4488 | } | |
4489 | ||
4490 | tcomplain (); | |
4491 | } | |
4492 | ||
c906108c | 4493 | static void |
f32dbf8c | 4494 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4495 | { |
f32dbf8c | 4496 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4497 | |
96baa820 | 4498 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4499 | } |
4500 | ||
ea001bdc MM |
4501 | /* See target.h. */ |
4502 | ||
4503 | const struct frame_unwind * | |
4504 | target_get_unwinder (void) | |
4505 | { | |
4506 | struct target_ops *t; | |
4507 | ||
4508 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4509 | if (t->to_get_unwinder != NULL) | |
4510 | return t->to_get_unwinder; | |
4511 | ||
4512 | return NULL; | |
4513 | } | |
4514 | ||
4515 | /* See target.h. */ | |
4516 | ||
4517 | const struct frame_unwind * | |
4518 | target_get_tailcall_unwinder (void) | |
4519 | { | |
4520 | struct target_ops *t; | |
4521 | ||
4522 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4523 | if (t->to_get_tailcall_unwinder != NULL) | |
4524 | return t->to_get_tailcall_unwinder; | |
4525 | ||
4526 | return NULL; | |
4527 | } | |
4528 | ||
118e6252 MM |
4529 | /* See target.h. */ |
4530 | ||
4531 | CORE_ADDR | |
4532 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4533 | struct gdbarch *gdbarch) | |
4534 | { | |
4535 | for (; ops != NULL; ops = ops->beneath) | |
4536 | if (ops->to_decr_pc_after_break != NULL) | |
4537 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4538 | ||
4539 | return gdbarch_decr_pc_after_break (gdbarch); | |
4540 | } | |
4541 | ||
4542 | /* See target.h. */ | |
4543 | ||
4544 | CORE_ADDR | |
4545 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4546 | { | |
4547 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4548 | } | |
4549 | ||
c906108c | 4550 | static int |
961cb7b5 | 4551 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4552 | int write, struct mem_attrib *attrib, |
4553 | struct target_ops *target) | |
c906108c SS |
4554 | { |
4555 | int retval; | |
4556 | ||
c8e73a31 AC |
4557 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4558 | attrib, target); | |
c906108c | 4559 | |
96baa820 | 4560 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4561 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4562 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4563 | write ? "write" : "read", retval); |
c906108c | 4564 | |
c906108c SS |
4565 | if (retval > 0) |
4566 | { | |
4567 | int i; | |
4568 | ||
96baa820 | 4569 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4570 | for (i = 0; i < retval; i++) |
4571 | { | |
53b71562 | 4572 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4573 | { |
4574 | if (targetdebug < 2 && i > 0) | |
4575 | { | |
4576 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4577 | break; | |
4578 | } | |
4579 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4580 | } | |
2bc416ba | 4581 | |
96baa820 | 4582 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4583 | } |
4584 | } | |
4585 | ||
96baa820 | 4586 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4587 | |
4588 | return retval; | |
4589 | } | |
4590 | ||
4591 | static void | |
fba45db2 | 4592 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4593 | { |
4594 | debug_target.to_files_info (target); | |
4595 | ||
96baa820 | 4596 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4597 | } |
4598 | ||
4599 | static int | |
3db08215 | 4600 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4601 | struct bp_target_info *bp_tgt) |
c906108c SS |
4602 | { |
4603 | int retval; | |
4604 | ||
6b84065d | 4605 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4606 | |
96baa820 | 4607 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4608 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4609 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4610 | (unsigned long) retval); |
c906108c SS |
4611 | return retval; |
4612 | } | |
4613 | ||
4614 | static int | |
3db08215 | 4615 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4616 | struct bp_target_info *bp_tgt) |
c906108c SS |
4617 | { |
4618 | int retval; | |
4619 | ||
6b84065d | 4620 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4621 | |
96baa820 | 4622 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4623 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4624 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4625 | (unsigned long) retval); |
c906108c SS |
4626 | return retval; |
4627 | } | |
4628 | ||
ccaa32c7 | 4629 | static int |
5461485a TT |
4630 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4631 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4632 | { |
4633 | int retval; | |
4634 | ||
5461485a TT |
4635 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4636 | type, cnt, from_tty); | |
ccaa32c7 GS |
4637 | |
4638 | fprintf_unfiltered (gdb_stdlog, | |
4639 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4640 | (unsigned long) type, | |
4641 | (unsigned long) cnt, | |
4642 | (unsigned long) from_tty, | |
4643 | (unsigned long) retval); | |
4644 | return retval; | |
4645 | } | |
4646 | ||
e0d24f8d WZ |
4647 | static int |
4648 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
4649 | { | |
4650 | CORE_ADDR retval; | |
4651 | ||
4652 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
4653 | ||
4654 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4655 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4656 | core_addr_to_string (addr), (unsigned long) len, | |
4657 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4658 | return retval; |
4659 | } | |
4660 | ||
0cf6dd15 TJB |
4661 | static int |
4662 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
4663 | struct expression *cond) | |
4664 | { | |
4665 | int retval; | |
4666 | ||
3e43a32a MS |
4667 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
4668 | rw, cond); | |
0cf6dd15 TJB |
4669 | |
4670 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4671 | "target_can_accel_watchpoint_condition " |
4672 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4673 | core_addr_to_string (addr), len, rw, |
4674 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4675 | return retval; |
4676 | } | |
4677 | ||
ccaa32c7 | 4678 | static int |
6a109b6b | 4679 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4680 | { |
4681 | int retval; | |
4682 | ||
6a109b6b | 4683 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4684 | |
4685 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4686 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4687 | (unsigned long) retval); |
4688 | return retval; | |
4689 | } | |
4690 | ||
4aa7a7f5 JJ |
4691 | static int |
4692 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4693 | { |
4aa7a7f5 | 4694 | int retval; |
ccaa32c7 | 4695 | |
4aa7a7f5 | 4696 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4697 | |
4698 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4699 | "target_stopped_data_address ([%s]) = %ld\n", |
4700 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4701 | (unsigned long)retval); |
ccaa32c7 GS |
4702 | return retval; |
4703 | } | |
4704 | ||
5009afc5 AS |
4705 | static int |
4706 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4707 | CORE_ADDR addr, | |
4708 | CORE_ADDR start, int length) | |
4709 | { | |
4710 | int retval; | |
4711 | ||
4712 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4713 | start, length); | |
4714 | ||
4715 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4716 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4717 | core_addr_to_string (addr), core_addr_to_string (start), | |
4718 | length, retval); | |
5009afc5 AS |
4719 | return retval; |
4720 | } | |
4721 | ||
ccaa32c7 | 4722 | static int |
23a26771 TT |
4723 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4724 | struct gdbarch *gdbarch, | |
a6d9a66e | 4725 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4726 | { |
4727 | int retval; | |
4728 | ||
23a26771 TT |
4729 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4730 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4731 | |
4732 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4733 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4734 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4735 | (unsigned long) retval); |
4736 | return retval; | |
4737 | } | |
4738 | ||
4739 | static int | |
a64dc96c TT |
4740 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4741 | struct gdbarch *gdbarch, | |
a6d9a66e | 4742 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4743 | { |
4744 | int retval; | |
4745 | ||
a64dc96c TT |
4746 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4747 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4748 | |
4749 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4750 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4751 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4752 | (unsigned long) retval); |
4753 | return retval; | |
4754 | } | |
4755 | ||
4756 | static int | |
0cf6dd15 TJB |
4757 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
4758 | struct expression *cond) | |
ccaa32c7 GS |
4759 | { |
4760 | int retval; | |
4761 | ||
0cf6dd15 | 4762 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4763 | |
4764 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4765 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4766 | core_addr_to_string (addr), len, type, | |
4767 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4768 | return retval; |
4769 | } | |
4770 | ||
4771 | static int | |
11b5219a TT |
4772 | debug_to_remove_watchpoint (struct target_ops *self, |
4773 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4774 | struct expression *cond) |
ccaa32c7 GS |
4775 | { |
4776 | int retval; | |
4777 | ||
11b5219a TT |
4778 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4779 | addr, len, type, cond); | |
ccaa32c7 GS |
4780 | |
4781 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4782 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4783 | core_addr_to_string (addr), len, type, | |
4784 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4785 | return retval; |
4786 | } | |
4787 | ||
c906108c | 4788 | static void |
fba45db2 | 4789 | debug_to_terminal_init (void) |
c906108c SS |
4790 | { |
4791 | debug_target.to_terminal_init (); | |
4792 | ||
96baa820 | 4793 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4794 | } |
4795 | ||
4796 | static void | |
fba45db2 | 4797 | debug_to_terminal_inferior (void) |
c906108c SS |
4798 | { |
4799 | debug_target.to_terminal_inferior (); | |
4800 | ||
96baa820 | 4801 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4802 | } |
4803 | ||
4804 | static void | |
fba45db2 | 4805 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
4806 | { |
4807 | debug_target.to_terminal_ours_for_output (); | |
4808 | ||
96baa820 | 4809 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4810 | } |
4811 | ||
4812 | static void | |
fba45db2 | 4813 | debug_to_terminal_ours (void) |
c906108c SS |
4814 | { |
4815 | debug_target.to_terminal_ours (); | |
4816 | ||
96baa820 | 4817 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4818 | } |
4819 | ||
a790ad35 SC |
4820 | static void |
4821 | debug_to_terminal_save_ours (void) | |
4822 | { | |
4823 | debug_target.to_terminal_save_ours (); | |
4824 | ||
4825 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4826 | } | |
4827 | ||
c906108c | 4828 | static void |
503ebb2c | 4829 | debug_to_terminal_info (const char *arg, int from_tty) |
c906108c SS |
4830 | { |
4831 | debug_target.to_terminal_info (arg, from_tty); | |
4832 | ||
96baa820 | 4833 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4834 | from_tty); |
4835 | } | |
4836 | ||
c906108c | 4837 | static void |
fba45db2 | 4838 | debug_to_load (char *args, int from_tty) |
c906108c SS |
4839 | { |
4840 | debug_target.to_load (args, from_tty); | |
4841 | ||
96baa820 | 4842 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4843 | } |
4844 | ||
c906108c | 4845 | static void |
39f77062 | 4846 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 4847 | { |
39f77062 | 4848 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 4849 | |
96baa820 | 4850 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4851 | ptid_get_pid (ptid)); |
c906108c SS |
4852 | } |
4853 | ||
77b06cd7 | 4854 | static int |
fba45db2 | 4855 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 4856 | { |
77b06cd7 TJB |
4857 | int retval; |
4858 | ||
4859 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
4860 | ||
4861 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4862 | pid, retval); | |
c906108c | 4863 | |
77b06cd7 | 4864 | return retval; |
c906108c SS |
4865 | } |
4866 | ||
4867 | static int | |
fba45db2 | 4868 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 4869 | { |
c5aa993b | 4870 | int retval; |
c906108c SS |
4871 | |
4872 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
4873 | ||
96baa820 | 4874 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4875 | pid, retval); |
c906108c SS |
4876 | |
4877 | return retval; | |
4878 | } | |
4879 | ||
77b06cd7 | 4880 | static int |
fba45db2 | 4881 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 4882 | { |
77b06cd7 TJB |
4883 | int retval; |
4884 | ||
4885 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 4886 | |
77b06cd7 TJB |
4887 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4888 | pid, retval); | |
4889 | ||
4890 | return retval; | |
c906108c SS |
4891 | } |
4892 | ||
4893 | static int | |
fba45db2 | 4894 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 4895 | { |
c5aa993b | 4896 | int retval; |
c906108c SS |
4897 | |
4898 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
4899 | ||
96baa820 | 4900 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4901 | pid, retval); |
c906108c SS |
4902 | |
4903 | return retval; | |
4904 | } | |
4905 | ||
77b06cd7 | 4906 | static int |
fba45db2 | 4907 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 4908 | { |
77b06cd7 TJB |
4909 | int retval; |
4910 | ||
4911 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 4912 | |
77b06cd7 TJB |
4913 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4914 | pid, retval); | |
4915 | ||
4916 | return retval; | |
c906108c SS |
4917 | } |
4918 | ||
4919 | static int | |
fba45db2 | 4920 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 4921 | { |
c5aa993b | 4922 | int retval; |
c906108c SS |
4923 | |
4924 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
4925 | ||
96baa820 | 4926 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4927 | pid, retval); |
c906108c SS |
4928 | |
4929 | return retval; | |
4930 | } | |
4931 | ||
c906108c | 4932 | static int |
fba45db2 | 4933 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 4934 | { |
c5aa993b | 4935 | int has_exited; |
c906108c SS |
4936 | |
4937 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
4938 | ||
96baa820 | 4939 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4940 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4941 | |
4942 | return has_exited; | |
4943 | } | |
4944 | ||
c906108c | 4945 | static int |
fba45db2 | 4946 | debug_to_can_run (void) |
c906108c SS |
4947 | { |
4948 | int retval; | |
4949 | ||
4950 | retval = debug_target.to_can_run (); | |
4951 | ||
96baa820 | 4952 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4953 | |
4954 | return retval; | |
4955 | } | |
4956 | ||
c2250ad1 UW |
4957 | static struct gdbarch * |
4958 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4959 | { | |
4960 | struct gdbarch *retval; | |
4961 | ||
4962 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4963 | ||
3e43a32a MS |
4964 | fprintf_unfiltered (gdb_stdlog, |
4965 | "target_thread_architecture (%s) = %s [%s]\n", | |
4966 | target_pid_to_str (ptid), | |
4967 | host_address_to_string (retval), | |
c2250ad1 UW |
4968 | gdbarch_bfd_arch_info (retval)->printable_name); |
4969 | return retval; | |
4970 | } | |
4971 | ||
c906108c | 4972 | static void |
94cc34af | 4973 | debug_to_stop (ptid_t ptid) |
c906108c | 4974 | { |
94cc34af | 4975 | debug_target.to_stop (ptid); |
c906108c | 4976 | |
94cc34af PA |
4977 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4978 | target_pid_to_str (ptid)); | |
c906108c SS |
4979 | } |
4980 | ||
96baa820 JM |
4981 | static void |
4982 | debug_to_rcmd (char *command, | |
d9fcf2fb | 4983 | struct ui_file *outbuf) |
96baa820 JM |
4984 | { |
4985 | debug_target.to_rcmd (command, outbuf); | |
4986 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
4987 | } | |
4988 | ||
c906108c | 4989 | static char * |
fba45db2 | 4990 | debug_to_pid_to_exec_file (int pid) |
c906108c | 4991 | { |
c5aa993b | 4992 | char *exec_file; |
c906108c SS |
4993 | |
4994 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
4995 | ||
96baa820 | 4996 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4997 | pid, exec_file); |
c906108c SS |
4998 | |
4999 | return exec_file; | |
5000 | } | |
5001 | ||
c906108c | 5002 | static void |
fba45db2 | 5003 | setup_target_debug (void) |
c906108c SS |
5004 | { |
5005 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
5006 | ||
5007 | current_target.to_open = debug_to_open; | |
c906108c | 5008 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 5009 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 5010 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
5011 | current_target.to_files_info = debug_to_files_info; |
5012 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
5013 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
5014 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
5015 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
5016 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
5017 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
5018 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
5019 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
5020 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
5021 | current_target.to_watchpoint_addr_within_range |
5022 | = debug_to_watchpoint_addr_within_range; | |
5023 | current_target.to_region_ok_for_hw_watchpoint | |
5024 | = debug_to_region_ok_for_hw_watchpoint; | |
5025 | current_target.to_can_accel_watchpoint_condition | |
5026 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
5027 | current_target.to_terminal_init = debug_to_terminal_init; |
5028 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
5029 | current_target.to_terminal_ours_for_output |
5030 | = debug_to_terminal_ours_for_output; | |
c906108c | 5031 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 5032 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 5033 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 5034 | current_target.to_load = debug_to_load; |
c906108c | 5035 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
5036 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
5037 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
5038 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
5039 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
5040 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
5041 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 5042 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 5043 | current_target.to_can_run = debug_to_can_run; |
c906108c | 5044 | current_target.to_stop = debug_to_stop; |
96baa820 | 5045 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 5046 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 5047 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 5048 | } |
c906108c | 5049 | \f |
c5aa993b JM |
5050 | |
5051 | static char targ_desc[] = | |
3e43a32a MS |
5052 | "Names of targets and files being debugged.\nShows the entire \ |
5053 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
5054 | core-file, and process, if any), as well as the symbol file name."; |
5055 | ||
96baa820 JM |
5056 | static void |
5057 | do_monitor_command (char *cmd, | |
5058 | int from_tty) | |
5059 | { | |
2b5fe715 AC |
5060 | if ((current_target.to_rcmd |
5061 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 5062 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
5063 | && (debug_target.to_rcmd |
5064 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 5065 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
5066 | target_rcmd (cmd, gdb_stdtarg); |
5067 | } | |
5068 | ||
87680a14 JB |
5069 | /* Print the name of each layers of our target stack. */ |
5070 | ||
5071 | static void | |
5072 | maintenance_print_target_stack (char *cmd, int from_tty) | |
5073 | { | |
5074 | struct target_ops *t; | |
5075 | ||
5076 | printf_filtered (_("The current target stack is:\n")); | |
5077 | ||
5078 | for (t = target_stack; t != NULL; t = t->beneath) | |
5079 | { | |
5080 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
5081 | } | |
5082 | } | |
5083 | ||
c6ebd6cf VP |
5084 | /* Controls if async mode is permitted. */ |
5085 | int target_async_permitted = 0; | |
5086 | ||
5087 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 5088 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
5089 | static int target_async_permitted_1 = 0; |
5090 | ||
5091 | static void | |
9401a810 PA |
5092 | set_target_async_command (char *args, int from_tty, |
5093 | struct cmd_list_element *c) | |
c6ebd6cf | 5094 | { |
c35b1492 | 5095 | if (have_live_inferiors ()) |
c6ebd6cf VP |
5096 | { |
5097 | target_async_permitted_1 = target_async_permitted; | |
5098 | error (_("Cannot change this setting while the inferior is running.")); | |
5099 | } | |
5100 | ||
5101 | target_async_permitted = target_async_permitted_1; | |
5102 | } | |
5103 | ||
5104 | static void | |
9401a810 PA |
5105 | show_target_async_command (struct ui_file *file, int from_tty, |
5106 | struct cmd_list_element *c, | |
5107 | const char *value) | |
c6ebd6cf | 5108 | { |
3e43a32a MS |
5109 | fprintf_filtered (file, |
5110 | _("Controlling the inferior in " | |
5111 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5112 | } |
5113 | ||
d914c394 SS |
5114 | /* Temporary copies of permission settings. */ |
5115 | ||
5116 | static int may_write_registers_1 = 1; | |
5117 | static int may_write_memory_1 = 1; | |
5118 | static int may_insert_breakpoints_1 = 1; | |
5119 | static int may_insert_tracepoints_1 = 1; | |
5120 | static int may_insert_fast_tracepoints_1 = 1; | |
5121 | static int may_stop_1 = 1; | |
5122 | ||
5123 | /* Make the user-set values match the real values again. */ | |
5124 | ||
5125 | void | |
5126 | update_target_permissions (void) | |
5127 | { | |
5128 | may_write_registers_1 = may_write_registers; | |
5129 | may_write_memory_1 = may_write_memory; | |
5130 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5131 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5132 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5133 | may_stop_1 = may_stop; | |
5134 | } | |
5135 | ||
5136 | /* The one function handles (most of) the permission flags in the same | |
5137 | way. */ | |
5138 | ||
5139 | static void | |
5140 | set_target_permissions (char *args, int from_tty, | |
5141 | struct cmd_list_element *c) | |
5142 | { | |
5143 | if (target_has_execution) | |
5144 | { | |
5145 | update_target_permissions (); | |
5146 | error (_("Cannot change this setting while the inferior is running.")); | |
5147 | } | |
5148 | ||
5149 | /* Make the real values match the user-changed values. */ | |
5150 | may_write_registers = may_write_registers_1; | |
5151 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5152 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5153 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5154 | may_stop = may_stop_1; | |
5155 | update_observer_mode (); | |
5156 | } | |
5157 | ||
5158 | /* Set memory write permission independently of observer mode. */ | |
5159 | ||
5160 | static void | |
5161 | set_write_memory_permission (char *args, int from_tty, | |
5162 | struct cmd_list_element *c) | |
5163 | { | |
5164 | /* Make the real values match the user-changed values. */ | |
5165 | may_write_memory = may_write_memory_1; | |
5166 | update_observer_mode (); | |
5167 | } | |
5168 | ||
5169 | ||
c906108c | 5170 | void |
fba45db2 | 5171 | initialize_targets (void) |
c906108c SS |
5172 | { |
5173 | init_dummy_target (); | |
5174 | push_target (&dummy_target); | |
5175 | ||
5176 | add_info ("target", target_info, targ_desc); | |
5177 | add_info ("files", target_info, targ_desc); | |
5178 | ||
ccce17b0 | 5179 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5180 | Set target debugging."), _("\ |
5181 | Show target debugging."), _("\ | |
333dabeb DJ |
5182 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5183 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5184 | command."), |
ccce17b0 YQ |
5185 | NULL, |
5186 | show_targetdebug, | |
5187 | &setdebuglist, &showdebuglist); | |
3a11626d | 5188 | |
2bc416ba | 5189 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5190 | &trust_readonly, _("\ |
5191 | Set mode for reading from readonly sections."), _("\ | |
5192 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5193 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5194 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5195 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5196 | NULL, |
920d2a44 | 5197 | show_trust_readonly, |
e707bbc2 | 5198 | &setlist, &showlist); |
96baa820 JM |
5199 | |
5200 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5201 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5202 | |
87680a14 JB |
5203 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5204 | _("Print the name of each layer of the internal target stack."), | |
5205 | &maintenanceprintlist); | |
5206 | ||
c6ebd6cf VP |
5207 | add_setshow_boolean_cmd ("target-async", no_class, |
5208 | &target_async_permitted_1, _("\ | |
5209 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5210 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5211 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5212 | set_target_async_command, |
5213 | show_target_async_command, | |
c6ebd6cf VP |
5214 | &setlist, |
5215 | &showlist); | |
5216 | ||
d914c394 SS |
5217 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5218 | &may_write_registers_1, _("\ | |
5219 | Set permission to write into registers."), _("\ | |
5220 | Show permission to write into registers."), _("\ | |
5221 | When this permission is on, GDB may write into the target's registers.\n\ | |
5222 | Otherwise, any sort of write attempt will result in an error."), | |
5223 | set_target_permissions, NULL, | |
5224 | &setlist, &showlist); | |
5225 | ||
5226 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5227 | &may_write_memory_1, _("\ | |
5228 | Set permission to write into target memory."), _("\ | |
5229 | Show permission to write into target memory."), _("\ | |
5230 | When this permission is on, GDB may write into the target's memory.\n\ | |
5231 | Otherwise, any sort of write attempt will result in an error."), | |
5232 | set_write_memory_permission, NULL, | |
5233 | &setlist, &showlist); | |
5234 | ||
5235 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5236 | &may_insert_breakpoints_1, _("\ | |
5237 | Set permission to insert breakpoints in the target."), _("\ | |
5238 | Show permission to insert breakpoints in the target."), _("\ | |
5239 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5240 | Otherwise, any sort of insertion attempt will result in an error."), | |
5241 | set_target_permissions, NULL, | |
5242 | &setlist, &showlist); | |
5243 | ||
5244 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5245 | &may_insert_tracepoints_1, _("\ | |
5246 | Set permission to insert tracepoints in the target."), _("\ | |
5247 | Show permission to insert tracepoints in the target."), _("\ | |
5248 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5249 | Otherwise, any sort of insertion attempt will result in an error."), | |
5250 | set_target_permissions, NULL, | |
5251 | &setlist, &showlist); | |
5252 | ||
5253 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5254 | &may_insert_fast_tracepoints_1, _("\ | |
5255 | Set permission to insert fast tracepoints in the target."), _("\ | |
5256 | Show permission to insert fast tracepoints in the target."), _("\ | |
5257 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5258 | Otherwise, any sort of insertion attempt will result in an error."), | |
5259 | set_target_permissions, NULL, | |
5260 | &setlist, &showlist); | |
5261 | ||
5262 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5263 | &may_stop_1, _("\ | |
5264 | Set permission to interrupt or signal the target."), _("\ | |
5265 | Show permission to interrupt or signal the target."), _("\ | |
5266 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5267 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5268 | set_target_permissions, NULL, | |
5269 | &setlist, &showlist); | |
c906108c | 5270 | } |