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