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 | |
0a4f40a2 | 50 | static void default_terminal_info (struct target_ops *, 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 | ||
31568a15 TT |
55 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
56 | CORE_ADDR, int); | |
e0d24f8d | 57 | |
a53f3625 TT |
58 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
59 | ||
c25c4a8b | 60 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 61 | |
a14ed312 | 62 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 63 | |
a14ed312 | 64 | static int return_zero (void); |
c906108c | 65 | |
a14ed312 | 66 | static int return_one (void); |
c906108c | 67 | |
ccaa32c7 GS |
68 | static int return_minus_one (void); |
69 | ||
1b67eb02 AS |
70 | static void *return_null (void); |
71 | ||
a14ed312 | 72 | void target_ignore (void); |
c906108c | 73 | |
a14ed312 | 74 | static void target_command (char *, int); |
c906108c | 75 | |
a14ed312 | 76 | static struct target_ops *find_default_run_target (char *); |
c906108c | 77 | |
4ac248ca YQ |
78 | static target_xfer_partial_ftype default_xfer_partial; |
79 | ||
c2250ad1 UW |
80 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
81 | ptid_t ptid); | |
82 | ||
6b84065d TT |
83 | static int find_default_can_async_p (struct target_ops *ignore); |
84 | ||
85 | static int find_default_is_async_p (struct target_ops *ignore); | |
86 | ||
1101cb7b TT |
87 | #include "target-delegates.c" |
88 | ||
a14ed312 | 89 | static void init_dummy_target (void); |
c906108c | 90 | |
aa869812 AC |
91 | static struct target_ops debug_target; |
92 | ||
a14ed312 | 93 | static void debug_to_open (char *, int); |
c906108c | 94 | |
f32dbf8c MM |
95 | static void debug_to_prepare_to_store (struct target_ops *self, |
96 | struct regcache *); | |
c906108c | 97 | |
a14ed312 | 98 | static void debug_to_files_info (struct target_ops *); |
c906108c | 99 | |
3db08215 | 100 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 101 | struct bp_target_info *); |
c906108c | 102 | |
3db08215 | 103 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 104 | struct bp_target_info *); |
c906108c | 105 | |
5461485a TT |
106 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
107 | int, int, int); | |
ccaa32c7 | 108 | |
23a26771 TT |
109 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
110 | struct gdbarch *, | |
a6d9a66e | 111 | struct bp_target_info *); |
ccaa32c7 | 112 | |
a64dc96c TT |
113 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
114 | struct gdbarch *, | |
a6d9a66e | 115 | struct bp_target_info *); |
ccaa32c7 | 116 | |
7bb99c53 TT |
117 | static int debug_to_insert_watchpoint (struct target_ops *self, |
118 | CORE_ADDR, int, int, | |
0cf6dd15 | 119 | struct expression *); |
ccaa32c7 | 120 | |
11b5219a TT |
121 | static int debug_to_remove_watchpoint (struct target_ops *self, |
122 | CORE_ADDR, int, int, | |
0cf6dd15 | 123 | struct expression *); |
ccaa32c7 | 124 | |
4aa7a7f5 | 125 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 126 | |
5009afc5 AS |
127 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
128 | CORE_ADDR, CORE_ADDR, int); | |
129 | ||
31568a15 TT |
130 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
131 | CORE_ADDR, int); | |
e0d24f8d | 132 | |
c3a5ff89 TT |
133 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
134 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
135 | struct expression *); |
136 | ||
c42bf286 | 137 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 138 | |
d2f640d4 | 139 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 140 | |
2e1e1a19 | 141 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 142 | |
ae3bd431 | 143 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 144 | |
e3594fd1 | 145 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 146 | |
71a9f134 | 147 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 148 | |
da82bd6b | 149 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 150 | |
1eab8a48 | 151 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 152 | |
c906108c | 153 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 154 | array; the current index into the array; the allocated size of the |
c906108c SS |
155 | array. */ |
156 | struct target_ops **target_structs; | |
157 | unsigned target_struct_size; | |
c906108c SS |
158 | unsigned target_struct_allocsize; |
159 | #define DEFAULT_ALLOCSIZE 10 | |
160 | ||
161 | /* The initial current target, so that there is always a semi-valid | |
162 | current target. */ | |
163 | ||
164 | static struct target_ops dummy_target; | |
165 | ||
166 | /* Top of target stack. */ | |
167 | ||
258b763a | 168 | static struct target_ops *target_stack; |
c906108c SS |
169 | |
170 | /* The target structure we are currently using to talk to a process | |
171 | or file or whatever "inferior" we have. */ | |
172 | ||
173 | struct target_ops current_target; | |
174 | ||
175 | /* Command list for target. */ | |
176 | ||
177 | static struct cmd_list_element *targetlist = NULL; | |
178 | ||
cf7a04e8 DJ |
179 | /* Nonzero if we should trust readonly sections from the |
180 | executable when reading memory. */ | |
181 | ||
182 | static int trust_readonly = 0; | |
183 | ||
8defab1a DJ |
184 | /* Nonzero if we should show true memory content including |
185 | memory breakpoint inserted by gdb. */ | |
186 | ||
187 | static int show_memory_breakpoints = 0; | |
188 | ||
d914c394 SS |
189 | /* These globals control whether GDB attempts to perform these |
190 | operations; they are useful for targets that need to prevent | |
191 | inadvertant disruption, such as in non-stop mode. */ | |
192 | ||
193 | int may_write_registers = 1; | |
194 | ||
195 | int may_write_memory = 1; | |
196 | ||
197 | int may_insert_breakpoints = 1; | |
198 | ||
199 | int may_insert_tracepoints = 1; | |
200 | ||
201 | int may_insert_fast_tracepoints = 1; | |
202 | ||
203 | int may_stop = 1; | |
204 | ||
c906108c SS |
205 | /* Non-zero if we want to see trace of target level stuff. */ |
206 | ||
ccce17b0 | 207 | static unsigned int targetdebug = 0; |
920d2a44 AC |
208 | static void |
209 | show_targetdebug (struct ui_file *file, int from_tty, | |
210 | struct cmd_list_element *c, const char *value) | |
211 | { | |
212 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
213 | } | |
c906108c | 214 | |
a14ed312 | 215 | static void setup_target_debug (void); |
c906108c | 216 | |
c906108c SS |
217 | /* The user just typed 'target' without the name of a target. */ |
218 | ||
c906108c | 219 | static void |
fba45db2 | 220 | target_command (char *arg, int from_tty) |
c906108c SS |
221 | { |
222 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
223 | gdb_stdout); | |
224 | } | |
225 | ||
c35b1492 PA |
226 | /* Default target_has_* methods for process_stratum targets. */ |
227 | ||
228 | int | |
229 | default_child_has_all_memory (struct target_ops *ops) | |
230 | { | |
231 | /* If no inferior selected, then we can't read memory here. */ | |
232 | if (ptid_equal (inferior_ptid, null_ptid)) | |
233 | return 0; | |
234 | ||
235 | return 1; | |
236 | } | |
237 | ||
238 | int | |
239 | default_child_has_memory (struct target_ops *ops) | |
240 | { | |
241 | /* If no inferior selected, then we can't read memory here. */ | |
242 | if (ptid_equal (inferior_ptid, null_ptid)) | |
243 | return 0; | |
244 | ||
245 | return 1; | |
246 | } | |
247 | ||
248 | int | |
249 | default_child_has_stack (struct target_ops *ops) | |
250 | { | |
251 | /* If no inferior selected, there's no stack. */ | |
252 | if (ptid_equal (inferior_ptid, null_ptid)) | |
253 | return 0; | |
254 | ||
255 | return 1; | |
256 | } | |
257 | ||
258 | int | |
259 | default_child_has_registers (struct target_ops *ops) | |
260 | { | |
261 | /* Can't read registers from no inferior. */ | |
262 | if (ptid_equal (inferior_ptid, null_ptid)) | |
263 | return 0; | |
264 | ||
265 | return 1; | |
266 | } | |
267 | ||
268 | int | |
aeaec162 | 269 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
270 | { |
271 | /* If there's no thread selected, then we can't make it run through | |
272 | hoops. */ | |
aeaec162 | 273 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
274 | return 0; |
275 | ||
276 | return 1; | |
277 | } | |
278 | ||
279 | ||
280 | int | |
281 | target_has_all_memory_1 (void) | |
282 | { | |
283 | struct target_ops *t; | |
284 | ||
285 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
286 | if (t->to_has_all_memory (t)) | |
287 | return 1; | |
288 | ||
289 | return 0; | |
290 | } | |
291 | ||
292 | int | |
293 | target_has_memory_1 (void) | |
294 | { | |
295 | struct target_ops *t; | |
296 | ||
297 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
298 | if (t->to_has_memory (t)) | |
299 | return 1; | |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
304 | int | |
305 | target_has_stack_1 (void) | |
306 | { | |
307 | struct target_ops *t; | |
308 | ||
309 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
310 | if (t->to_has_stack (t)) | |
311 | return 1; | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
316 | int | |
317 | target_has_registers_1 (void) | |
318 | { | |
319 | struct target_ops *t; | |
320 | ||
321 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
322 | if (t->to_has_registers (t)) | |
323 | return 1; | |
324 | ||
325 | return 0; | |
326 | } | |
327 | ||
328 | int | |
aeaec162 | 329 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
330 | { |
331 | struct target_ops *t; | |
332 | ||
333 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 334 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
335 | return 1; |
336 | ||
337 | return 0; | |
338 | } | |
339 | ||
aeaec162 TT |
340 | int |
341 | target_has_execution_current (void) | |
342 | { | |
343 | return target_has_execution_1 (inferior_ptid); | |
344 | } | |
345 | ||
c22a2b88 TT |
346 | /* Complete initialization of T. This ensures that various fields in |
347 | T are set, if needed by the target implementation. */ | |
c906108c SS |
348 | |
349 | void | |
c22a2b88 | 350 | complete_target_initialization (struct target_ops *t) |
c906108c | 351 | { |
0088c768 | 352 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
353 | if (t->to_xfer_partial == NULL) |
354 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 355 | |
c35b1492 PA |
356 | if (t->to_has_all_memory == NULL) |
357 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
358 | ||
359 | if (t->to_has_memory == NULL) | |
360 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
361 | ||
362 | if (t->to_has_stack == NULL) | |
363 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
364 | ||
365 | if (t->to_has_registers == NULL) | |
366 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
367 | ||
368 | if (t->to_has_execution == NULL) | |
aeaec162 | 369 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
370 | |
371 | install_delegators (t); | |
c22a2b88 TT |
372 | } |
373 | ||
374 | /* Add possible target architecture T to the list and add a new | |
375 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
376 | completer if not NULL. */ | |
377 | ||
378 | void | |
379 | add_target_with_completer (struct target_ops *t, | |
380 | completer_ftype *completer) | |
381 | { | |
382 | struct cmd_list_element *c; | |
383 | ||
384 | complete_target_initialization (t); | |
c35b1492 | 385 | |
c906108c SS |
386 | if (!target_structs) |
387 | { | |
388 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
389 | target_structs = (struct target_ops **) xmalloc | |
390 | (target_struct_allocsize * sizeof (*target_structs)); | |
391 | } | |
392 | if (target_struct_size >= target_struct_allocsize) | |
393 | { | |
394 | target_struct_allocsize *= 2; | |
395 | target_structs = (struct target_ops **) | |
c5aa993b JM |
396 | xrealloc ((char *) target_structs, |
397 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
398 | } |
399 | target_structs[target_struct_size++] = t; | |
c906108c SS |
400 | |
401 | if (targetlist == NULL) | |
1bedd215 AC |
402 | add_prefix_cmd ("target", class_run, target_command, _("\ |
403 | Connect to a target machine or process.\n\ | |
c906108c SS |
404 | The first argument is the type or protocol of the target machine.\n\ |
405 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
406 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 407 | `help target ' followed by the protocol name."), |
c906108c | 408 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
409 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
410 | &targetlist); | |
411 | if (completer != NULL) | |
412 | set_cmd_completer (c, completer); | |
413 | } | |
414 | ||
415 | /* Add a possible target architecture to the list. */ | |
416 | ||
417 | void | |
418 | add_target (struct target_ops *t) | |
419 | { | |
420 | add_target_with_completer (t, NULL); | |
c906108c SS |
421 | } |
422 | ||
b48d48eb MM |
423 | /* See target.h. */ |
424 | ||
425 | void | |
426 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
427 | { | |
428 | struct cmd_list_element *c; | |
429 | char *alt; | |
430 | ||
431 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
432 | see PR cli/15104. */ | |
433 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
434 | alt = xstrprintf ("target %s", t->to_shortname); | |
435 | deprecate_cmd (c, alt); | |
436 | } | |
437 | ||
c906108c SS |
438 | /* Stub functions */ |
439 | ||
440 | void | |
fba45db2 | 441 | target_ignore (void) |
c906108c SS |
442 | { |
443 | } | |
444 | ||
7d85a9c0 JB |
445 | void |
446 | target_kill (void) | |
447 | { | |
448 | struct target_ops *t; | |
449 | ||
450 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
451 | if (t->to_kill != NULL) | |
452 | { | |
453 | if (targetdebug) | |
454 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
455 | ||
456 | t->to_kill (t); | |
457 | return; | |
458 | } | |
459 | ||
460 | noprocess (); | |
461 | } | |
462 | ||
11cf8741 JM |
463 | void |
464 | target_load (char *arg, int from_tty) | |
465 | { | |
4e5d721f | 466 | target_dcache_invalidate (); |
71a9f134 | 467 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
468 | } |
469 | ||
947b8855 PA |
470 | void |
471 | target_create_inferior (char *exec_file, char *args, | |
472 | char **env, int from_tty) | |
136d6dae VP |
473 | { |
474 | struct target_ops *t; | |
5d502164 | 475 | |
136d6dae VP |
476 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
477 | { | |
478 | if (t->to_create_inferior != NULL) | |
479 | { | |
480 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
481 | if (targetdebug) |
482 | fprintf_unfiltered (gdb_stdlog, | |
483 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
484 | exec_file, args, from_tty); | |
136d6dae VP |
485 | return; |
486 | } | |
487 | } | |
488 | ||
489 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 490 | _("could not find a target to create inferior")); |
136d6dae VP |
491 | } |
492 | ||
d9d2d8b6 PA |
493 | void |
494 | target_terminal_inferior (void) | |
495 | { | |
496 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 497 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
498 | this point the target is not async yet. However, if sync_execution |
499 | is not set, we know it will become async prior to resume. */ | |
500 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
501 | return; |
502 | ||
503 | /* If GDB is resuming the inferior in the foreground, install | |
504 | inferior's terminal modes. */ | |
d2f640d4 | 505 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 506 | } |
136d6dae | 507 | |
c906108c | 508 | static int |
fba45db2 KB |
509 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
510 | struct target_ops *t) | |
c906108c | 511 | { |
c378eb4e MS |
512 | errno = EIO; /* Can't read/write this location. */ |
513 | return 0; /* No bytes handled. */ | |
c906108c SS |
514 | } |
515 | ||
516 | static void | |
fba45db2 | 517 | tcomplain (void) |
c906108c | 518 | { |
8a3fe4f8 | 519 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
520 | current_target.to_shortname); |
521 | } | |
522 | ||
523 | void | |
fba45db2 | 524 | noprocess (void) |
c906108c | 525 | { |
8a3fe4f8 | 526 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
527 | } |
528 | ||
c906108c | 529 | static void |
0a4f40a2 | 530 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 531 | { |
a3f17187 | 532 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
533 | } |
534 | ||
0ef643c8 JB |
535 | /* A default implementation for the to_get_ada_task_ptid target method. |
536 | ||
537 | This function builds the PTID by using both LWP and TID as part of | |
538 | the PTID lwp and tid elements. The pid used is the pid of the | |
539 | inferior_ptid. */ | |
540 | ||
2c0b251b | 541 | static ptid_t |
1e6b91a4 | 542 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
543 | { |
544 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
545 | } | |
546 | ||
32231432 | 547 | static enum exec_direction_kind |
4c612759 | 548 | default_execution_direction (struct target_ops *self) |
32231432 PA |
549 | { |
550 | if (!target_can_execute_reverse) | |
551 | return EXEC_FORWARD; | |
552 | else if (!target_can_async_p ()) | |
553 | return EXEC_FORWARD; | |
554 | else | |
555 | gdb_assert_not_reached ("\ | |
556 | to_execution_direction must be implemented for reverse async"); | |
557 | } | |
558 | ||
7998dfc3 AC |
559 | /* Go through the target stack from top to bottom, copying over zero |
560 | entries in current_target, then filling in still empty entries. In | |
561 | effect, we are doing class inheritance through the pushed target | |
562 | vectors. | |
563 | ||
564 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
565 | is currently implemented, is that it discards any knowledge of | |
566 | which target an inherited method originally belonged to. | |
567 | Consequently, new new target methods should instead explicitly and | |
568 | locally search the target stack for the target that can handle the | |
569 | request. */ | |
c906108c SS |
570 | |
571 | static void | |
7998dfc3 | 572 | update_current_target (void) |
c906108c | 573 | { |
7998dfc3 AC |
574 | struct target_ops *t; |
575 | ||
08d8bcd7 | 576 | /* First, reset current's contents. */ |
7998dfc3 AC |
577 | memset (¤t_target, 0, sizeof (current_target)); |
578 | ||
1101cb7b TT |
579 | /* Install the delegators. */ |
580 | install_delegators (¤t_target); | |
581 | ||
7998dfc3 AC |
582 | #define INHERIT(FIELD, TARGET) \ |
583 | if (!current_target.FIELD) \ | |
584 | current_target.FIELD = (TARGET)->FIELD | |
585 | ||
586 | for (t = target_stack; t; t = t->beneath) | |
587 | { | |
588 | INHERIT (to_shortname, t); | |
589 | INHERIT (to_longname, t); | |
590 | INHERIT (to_doc, t); | |
b52323fa UW |
591 | /* Do not inherit to_open. */ |
592 | /* Do not inherit to_close. */ | |
136d6dae | 593 | /* Do not inherit to_attach. */ |
bebd3233 | 594 | /* Do not inherit to_post_attach. */ |
dc177b7a | 595 | INHERIT (to_attach_no_wait, t); |
136d6dae | 596 | /* Do not inherit to_detach. */ |
597320e7 | 597 | /* Do not inherit to_disconnect. */ |
28439f5e | 598 | /* Do not inherit to_resume. */ |
117de6a9 | 599 | /* Do not inherit to_wait. */ |
28439f5e PA |
600 | /* Do not inherit to_fetch_registers. */ |
601 | /* Do not inherit to_store_registers. */ | |
6c628163 | 602 | /* Do not inherit to_prepare_to_store. */ |
c8e73a31 | 603 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 | 604 | INHERIT (to_files_info, t); |
3db08215 MM |
605 | /* Do not inherit to_insert_breakpoint. */ |
606 | /* Do not inherit to_remove_breakpoint. */ | |
7998dfc3 AC |
607 | INHERIT (to_can_use_hw_breakpoint, t); |
608 | INHERIT (to_insert_hw_breakpoint, t); | |
609 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 610 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
611 | INHERIT (to_insert_watchpoint, t); |
612 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
613 | /* Do not inherit to_insert_mask_watchpoint. */ |
614 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 615 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 616 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 617 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 618 | /* Do not inherit to_stopped_by_watchpoint. */ |
5009afc5 | 619 | INHERIT (to_watchpoint_addr_within_range, t); |
e0d24f8d | 620 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 621 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 622 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
623 | INHERIT (to_terminal_init, t); |
624 | INHERIT (to_terminal_inferior, t); | |
625 | INHERIT (to_terminal_ours_for_output, t); | |
626 | INHERIT (to_terminal_ours, t); | |
627 | INHERIT (to_terminal_save_ours, t); | |
628 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 629 | /* Do not inherit to_kill. */ |
7998dfc3 | 630 | INHERIT (to_load, t); |
136d6dae | 631 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 632 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
633 | INHERIT (to_insert_fork_catchpoint, t); |
634 | INHERIT (to_remove_fork_catchpoint, t); | |
635 | INHERIT (to_insert_vfork_catchpoint, t); | |
636 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 637 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
638 | INHERIT (to_insert_exec_catchpoint, t); |
639 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 640 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 641 | INHERIT (to_has_exited, t); |
82892036 | 642 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 643 | INHERIT (to_can_run, t); |
2455069d | 644 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 645 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
646 | /* Do not inherit to_thread_alive. */ |
647 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 648 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 649 | INHERIT (to_extra_thread_info, t); |
4694da01 | 650 | INHERIT (to_thread_name, t); |
7998dfc3 | 651 | INHERIT (to_stop, t); |
4b8a223f | 652 | /* Do not inherit to_xfer_partial. */ |
a53f3625 | 653 | /* Do not inherit to_rcmd. */ |
7998dfc3 | 654 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 655 | INHERIT (to_log_command, t); |
7998dfc3 | 656 | INHERIT (to_stratum, t); |
c378eb4e MS |
657 | /* Do not inherit to_has_all_memory. */ |
658 | /* Do not inherit to_has_memory. */ | |
659 | /* Do not inherit to_has_stack. */ | |
660 | /* Do not inherit to_has_registers. */ | |
661 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 662 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
663 | /* Do not inherit to_can_async_p. */ |
664 | /* Do not inherit to_is_async_p. */ | |
665 | /* Do not inherit to_async. */ | |
7998dfc3 AC |
666 | INHERIT (to_find_memory_regions, t); |
667 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
668 | INHERIT (to_get_bookmark, t); |
669 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 670 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 671 | INHERIT (to_can_execute_reverse, t); |
32231432 | 672 | INHERIT (to_execution_direction, t); |
c2250ad1 | 673 | INHERIT (to_thread_architecture, t); |
424163ea | 674 | /* Do not inherit to_read_description. */ |
0ef643c8 | 675 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 676 | /* Do not inherit to_search_memory. */ |
8a305172 | 677 | INHERIT (to_supports_multi_process, t); |
d248b706 | 678 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 679 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
680 | INHERIT (to_trace_init, t); |
681 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 682 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 683 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
684 | INHERIT (to_enable_tracepoint, t); |
685 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
686 | INHERIT (to_trace_set_readonly_regions, t); |
687 | INHERIT (to_trace_start, t); | |
688 | INHERIT (to_get_trace_status, t); | |
f196051f | 689 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
690 | INHERIT (to_trace_stop, t); |
691 | INHERIT (to_trace_find, t); | |
692 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
693 | INHERIT (to_save_trace_data, t); |
694 | INHERIT (to_upload_tracepoints, t); | |
695 | INHERIT (to_upload_trace_state_variables, t); | |
696 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 697 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 698 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 699 | INHERIT (to_set_circular_trace_buffer, t); |
f6f899bf | 700 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 701 | INHERIT (to_set_trace_notes, t); |
711e434b | 702 | INHERIT (to_get_tib_address, t); |
d914c394 | 703 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
704 | INHERIT (to_static_tracepoint_marker_at, t); |
705 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 706 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
707 | INHERIT (to_use_agent, t); |
708 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 709 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 710 | INHERIT (to_magic, t); |
b775012e | 711 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 712 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 713 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
714 | /* Do not inherit to_flash_erase. */ |
715 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
716 | } |
717 | #undef INHERIT | |
718 | ||
719 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
720 | it. Some entries are defaulted to a method that print an error, |
721 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
722 | |
723 | #define de_fault(field, value) \ | |
7998dfc3 AC |
724 | if (!current_target.field) \ |
725 | current_target.field = value | |
0d06e24b | 726 | |
2bc416ba DJ |
727 | de_fault (to_open, |
728 | (void (*) (char *, int)) | |
0d06e24b | 729 | tcomplain); |
2bc416ba | 730 | de_fault (to_close, |
de90e03d | 731 | (void (*) (struct target_ops *)) |
0d06e24b | 732 | target_ignore); |
2bc416ba | 733 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
734 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
735 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 736 | nomemory); |
2bc416ba DJ |
737 | de_fault (to_files_info, |
738 | (void (*) (struct target_ops *)) | |
0d06e24b | 739 | target_ignore); |
ccaa32c7 | 740 | de_fault (to_can_use_hw_breakpoint, |
5461485a | 741 | (int (*) (struct target_ops *, int, int, int)) |
ccaa32c7 GS |
742 | return_zero); |
743 | de_fault (to_insert_hw_breakpoint, | |
23a26771 TT |
744 | (int (*) (struct target_ops *, struct gdbarch *, |
745 | struct bp_target_info *)) | |
ccaa32c7 GS |
746 | return_minus_one); |
747 | de_fault (to_remove_hw_breakpoint, | |
a64dc96c TT |
748 | (int (*) (struct target_ops *, struct gdbarch *, |
749 | struct bp_target_info *)) | |
ccaa32c7 GS |
750 | return_minus_one); |
751 | de_fault (to_insert_watchpoint, | |
7bb99c53 TT |
752 | (int (*) (struct target_ops *, CORE_ADDR, int, int, |
753 | struct expression *)) | |
ccaa32c7 GS |
754 | return_minus_one); |
755 | de_fault (to_remove_watchpoint, | |
11b5219a TT |
756 | (int (*) (struct target_ops *, CORE_ADDR, int, int, |
757 | struct expression *)) | |
ccaa32c7 | 758 | return_minus_one); |
5009afc5 AS |
759 | de_fault (to_watchpoint_addr_within_range, |
760 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
761 | de_fault (to_region_ok_for_hw_watchpoint, |
762 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 | 763 | de_fault (to_can_accel_watchpoint_condition, |
c3a5ff89 TT |
764 | (int (*) (struct target_ops *, CORE_ADDR, int, int, |
765 | struct expression *)) | |
0cf6dd15 | 766 | return_zero); |
2bc416ba | 767 | de_fault (to_terminal_init, |
c42bf286 | 768 | (void (*) (struct target_ops *)) |
0d06e24b | 769 | target_ignore); |
2bc416ba | 770 | de_fault (to_terminal_inferior, |
d2f640d4 | 771 | (void (*) (struct target_ops *)) |
0d06e24b | 772 | target_ignore); |
2bc416ba | 773 | de_fault (to_terminal_ours_for_output, |
2e1e1a19 | 774 | (void (*) (struct target_ops *)) |
0d06e24b | 775 | target_ignore); |
2bc416ba | 776 | de_fault (to_terminal_ours, |
e3594fd1 | 777 | (void (*) (struct target_ops *)) |
0d06e24b | 778 | target_ignore); |
2bc416ba | 779 | de_fault (to_terminal_save_ours, |
ae3bd431 | 780 | (void (*) (struct target_ops *)) |
a790ad35 | 781 | target_ignore); |
2bc416ba | 782 | de_fault (to_terminal_info, |
0d06e24b | 783 | default_terminal_info); |
2bc416ba | 784 | de_fault (to_load, |
71a9f134 | 785 | (void (*) (struct target_ops *, char *, int)) |
0d06e24b | 786 | tcomplain); |
2bc416ba | 787 | de_fault (to_post_startup_inferior, |
2e97a79e | 788 | (void (*) (struct target_ops *, ptid_t)) |
0d06e24b | 789 | target_ignore); |
2bc416ba | 790 | de_fault (to_insert_fork_catchpoint, |
a863b201 | 791 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 792 | return_one); |
2bc416ba | 793 | de_fault (to_remove_fork_catchpoint, |
973fc227 | 794 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 795 | return_one); |
2bc416ba | 796 | de_fault (to_insert_vfork_catchpoint, |
3ecc7da0 | 797 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 798 | return_one); |
2bc416ba | 799 | de_fault (to_remove_vfork_catchpoint, |
e98cf0cd | 800 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 801 | return_one); |
2bc416ba | 802 | de_fault (to_insert_exec_catchpoint, |
ba025e51 | 803 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 804 | return_one); |
2bc416ba | 805 | de_fault (to_remove_exec_catchpoint, |
758e29d2 | 806 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 807 | return_one); |
a96d9b2e | 808 | de_fault (to_set_syscall_catchpoint, |
ff214e67 | 809 | (int (*) (struct target_ops *, int, int, int, int, int *)) |
77b06cd7 | 810 | return_one); |
2bc416ba | 811 | de_fault (to_has_exited, |
d796e1d6 | 812 | (int (*) (struct target_ops *, int, int, int *)) |
0d06e24b | 813 | return_zero); |
2bc416ba | 814 | de_fault (to_can_run, |
da82bd6b | 815 | (int (*) (struct target_ops *)) |
0d06e24b | 816 | return_zero); |
2bc416ba | 817 | de_fault (to_extra_thread_info, |
c15906d8 | 818 | (char *(*) (struct target_ops *, struct thread_info *)) |
1b67eb02 | 819 | return_null); |
4694da01 | 820 | de_fault (to_thread_name, |
503a628d | 821 | (char *(*) (struct target_ops *, struct thread_info *)) |
1b67eb02 | 822 | return_null); |
2bc416ba | 823 | de_fault (to_stop, |
1eab8a48 | 824 | (void (*) (struct target_ops *, ptid_t)) |
0d06e24b | 825 | target_ignore); |
2bc416ba | 826 | de_fault (to_pid_to_exec_file, |
8dd27370 | 827 | (char *(*) (struct target_ops *, int)) |
1b67eb02 | 828 | return_null); |
c2250ad1 UW |
829 | de_fault (to_thread_architecture, |
830 | default_thread_architecture); | |
424163ea | 831 | current_target.to_read_description = NULL; |
0ef643c8 | 832 | de_fault (to_get_ada_task_ptid, |
1e6b91a4 | 833 | (ptid_t (*) (struct target_ops *, long, long)) |
0ef643c8 | 834 | default_get_ada_task_ptid); |
8a305172 | 835 | de_fault (to_supports_multi_process, |
86ce2668 | 836 | (int (*) (struct target_ops *)) |
8a305172 | 837 | return_zero); |
d248b706 | 838 | de_fault (to_supports_enable_disable_tracepoint, |
7d178d6a | 839 | (int (*) (struct target_ops *)) |
d248b706 | 840 | return_zero); |
3065dfb6 | 841 | de_fault (to_supports_string_tracing, |
6de37a3a | 842 | (int (*) (struct target_ops *)) |
3065dfb6 | 843 | return_zero); |
35b1e5cc | 844 | de_fault (to_trace_init, |
ecae04e1 | 845 | (void (*) (struct target_ops *)) |
35b1e5cc SS |
846 | tcomplain); |
847 | de_fault (to_download_tracepoint, | |
548f7808 | 848 | (void (*) (struct target_ops *, struct bp_location *)) |
35b1e5cc | 849 | tcomplain); |
1e4d1764 | 850 | de_fault (to_can_download_tracepoint, |
a52a8357 | 851 | (int (*) (struct target_ops *)) |
1e4d1764 | 852 | return_zero); |
35b1e5cc | 853 | de_fault (to_download_trace_state_variable, |
559d2b81 | 854 | (void (*) (struct target_ops *, struct trace_state_variable *)) |
35b1e5cc | 855 | tcomplain); |
d248b706 | 856 | de_fault (to_enable_tracepoint, |
46670d57 | 857 | (void (*) (struct target_ops *, struct bp_location *)) |
d248b706 KY |
858 | tcomplain); |
859 | de_fault (to_disable_tracepoint, | |
780b049c | 860 | (void (*) (struct target_ops *, struct bp_location *)) |
d248b706 | 861 | tcomplain); |
35b1e5cc | 862 | de_fault (to_trace_set_readonly_regions, |
583f9a86 | 863 | (void (*) (struct target_ops *)) |
35b1e5cc SS |
864 | tcomplain); |
865 | de_fault (to_trace_start, | |
e2d1aae3 | 866 | (void (*) (struct target_ops *)) |
35b1e5cc SS |
867 | tcomplain); |
868 | de_fault (to_get_trace_status, | |
8bd200f1 | 869 | (int (*) (struct target_ops *, struct trace_status *)) |
35b1e5cc | 870 | return_minus_one); |
f196051f | 871 | de_fault (to_get_tracepoint_status, |
db90e85c TT |
872 | (void (*) (struct target_ops *, struct breakpoint *, |
873 | struct uploaded_tp *)) | |
f196051f | 874 | tcomplain); |
35b1e5cc | 875 | de_fault (to_trace_stop, |
74499f1b | 876 | (void (*) (struct target_ops *)) |
35b1e5cc SS |
877 | tcomplain); |
878 | de_fault (to_trace_find, | |
bd4c6793 TT |
879 | (int (*) (struct target_ops *, |
880 | enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) | |
4136fdd2 | 881 | return_minus_one); |
35b1e5cc | 882 | de_fault (to_get_trace_state_variable_value, |
4011015b | 883 | (int (*) (struct target_ops *, int, LONGEST *)) |
35b1e5cc | 884 | return_zero); |
00bf0b85 | 885 | de_fault (to_save_trace_data, |
dc3decaf | 886 | (int (*) (struct target_ops *, const char *)) |
00bf0b85 SS |
887 | tcomplain); |
888 | de_fault (to_upload_tracepoints, | |
ab6617cc | 889 | (int (*) (struct target_ops *, struct uploaded_tp **)) |
00bf0b85 SS |
890 | return_zero); |
891 | de_fault (to_upload_trace_state_variables, | |
181e3713 | 892 | (int (*) (struct target_ops *, struct uploaded_tsv **)) |
00bf0b85 SS |
893 | return_zero); |
894 | de_fault (to_get_raw_trace_data, | |
88ee6f45 | 895 | (LONGEST (*) (struct target_ops *, gdb_byte *, ULONGEST, LONGEST)) |
00bf0b85 | 896 | tcomplain); |
405f8e94 | 897 | de_fault (to_get_min_fast_tracepoint_insn_len, |
0e67620a | 898 | (int (*) (struct target_ops *)) |
405f8e94 | 899 | return_minus_one); |
35b1e5cc | 900 | de_fault (to_set_disconnected_tracing, |
37b25738 | 901 | (void (*) (struct target_ops *, int)) |
4daf5ac0 SS |
902 | target_ignore); |
903 | de_fault (to_set_circular_trace_buffer, | |
736d5b1f | 904 | (void (*) (struct target_ops *, int)) |
4daf5ac0 | 905 | target_ignore); |
f6f899bf | 906 | de_fault (to_set_trace_buffer_size, |
4da384be | 907 | (void (*) (struct target_ops *, LONGEST)) |
f6f899bf | 908 | target_ignore); |
f196051f | 909 | de_fault (to_set_trace_notes, |
d9e68a2c TT |
910 | (int (*) (struct target_ops *, |
911 | const char *, const char *, const char *)) | |
f196051f | 912 | return_zero); |
711e434b | 913 | de_fault (to_get_tib_address, |
bd7ae0f5 | 914 | (int (*) (struct target_ops *, ptid_t, CORE_ADDR *)) |
711e434b | 915 | tcomplain); |
d914c394 | 916 | de_fault (to_set_permissions, |
c378d69d | 917 | (void (*) (struct target_ops *)) |
d914c394 | 918 | target_ignore); |
0fb4aa4b | 919 | de_fault (to_static_tracepoint_marker_at, |
61fc905d TT |
920 | (int (*) (struct target_ops *, |
921 | CORE_ADDR, struct static_tracepoint_marker *)) | |
0fb4aa4b PA |
922 | return_zero); |
923 | de_fault (to_static_tracepoint_markers_by_strid, | |
c686c57f TT |
924 | (VEC(static_tracepoint_marker_p) * (*) (struct target_ops *, |
925 | const char *)) | |
0fb4aa4b | 926 | tcomplain); |
b3b9301e | 927 | de_fault (to_traceframe_info, |
a893e81f | 928 | (struct traceframe_info * (*) (struct target_ops *)) |
1b67eb02 | 929 | return_null); |
b775012e | 930 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
efcc2da7 | 931 | (int (*) (struct target_ops *)) |
b775012e | 932 | return_zero); |
d3ce09f5 | 933 | de_fault (to_can_run_breakpoint_commands, |
78eff0ec | 934 | (int (*) (struct target_ops *)) |
d3ce09f5 | 935 | return_zero); |
d1feda86 | 936 | de_fault (to_use_agent, |
2c152180 | 937 | (int (*) (struct target_ops *, int)) |
d1feda86 YQ |
938 | tcomplain); |
939 | de_fault (to_can_use_agent, | |
fe38f897 | 940 | (int (*) (struct target_ops *)) |
d1feda86 | 941 | return_zero); |
ced63ec0 | 942 | de_fault (to_augmented_libraries_svr4_read, |
5436ff03 | 943 | (int (*) (struct target_ops *)) |
ced63ec0 | 944 | return_zero); |
32231432 PA |
945 | de_fault (to_execution_direction, default_execution_direction); |
946 | ||
c906108c | 947 | #undef de_fault |
c906108c | 948 | |
7998dfc3 AC |
949 | /* Finally, position the target-stack beneath the squashed |
950 | "current_target". That way code looking for a non-inherited | |
951 | target method can quickly and simply find it. */ | |
952 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
953 | |
954 | if (targetdebug) | |
955 | setup_target_debug (); | |
c906108c SS |
956 | } |
957 | ||
958 | /* Push a new target type into the stack of the existing target accessors, | |
959 | possibly superseding some of the existing accessors. | |
960 | ||
c906108c SS |
961 | Rather than allow an empty stack, we always have the dummy target at |
962 | the bottom stratum, so we can call the function vectors without | |
963 | checking them. */ | |
964 | ||
b26a4dcb | 965 | void |
fba45db2 | 966 | push_target (struct target_ops *t) |
c906108c | 967 | { |
258b763a | 968 | struct target_ops **cur; |
c906108c SS |
969 | |
970 | /* Check magic number. If wrong, it probably means someone changed | |
971 | the struct definition, but not all the places that initialize one. */ | |
972 | if (t->to_magic != OPS_MAGIC) | |
973 | { | |
c5aa993b JM |
974 | fprintf_unfiltered (gdb_stderr, |
975 | "Magic number of %s target struct wrong\n", | |
976 | t->to_shortname); | |
3e43a32a MS |
977 | internal_error (__FILE__, __LINE__, |
978 | _("failed internal consistency check")); | |
c906108c SS |
979 | } |
980 | ||
258b763a AC |
981 | /* Find the proper stratum to install this target in. */ |
982 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 983 | { |
258b763a | 984 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
985 | break; |
986 | } | |
987 | ||
258b763a | 988 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 989 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
990 | targets to CUR, and not just those at this stratum level. */ |
991 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
992 | { | |
993 | /* There's already something at this stratum level. Close it, | |
994 | and un-hook it from the stack. */ | |
995 | struct target_ops *tmp = (*cur); | |
5d502164 | 996 | |
258b763a AC |
997 | (*cur) = (*cur)->beneath; |
998 | tmp->beneath = NULL; | |
460014f5 | 999 | target_close (tmp); |
258b763a | 1000 | } |
c906108c SS |
1001 | |
1002 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
1003 | t->beneath = (*cur); |
1004 | (*cur) = t; | |
c906108c SS |
1005 | |
1006 | update_current_target (); | |
c906108c SS |
1007 | } |
1008 | ||
2bc416ba | 1009 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1010 | Return how many times it was removed (0 or 1). */ |
1011 | ||
1012 | int | |
fba45db2 | 1013 | unpush_target (struct target_ops *t) |
c906108c | 1014 | { |
258b763a AC |
1015 | struct target_ops **cur; |
1016 | struct target_ops *tmp; | |
c906108c | 1017 | |
c8d104ad PA |
1018 | if (t->to_stratum == dummy_stratum) |
1019 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1020 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1021 | |
c906108c | 1022 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1023 | can only occur once in the target stack. */ |
c906108c | 1024 | |
258b763a AC |
1025 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1026 | { | |
1027 | if ((*cur) == t) | |
1028 | break; | |
1029 | } | |
c906108c | 1030 | |
305436e0 PA |
1031 | /* If we don't find target_ops, quit. Only open targets should be |
1032 | closed. */ | |
258b763a | 1033 | if ((*cur) == NULL) |
305436e0 | 1034 | return 0; |
5269965e | 1035 | |
c378eb4e | 1036 | /* Unchain the target. */ |
258b763a AC |
1037 | tmp = (*cur); |
1038 | (*cur) = (*cur)->beneath; | |
1039 | tmp->beneath = NULL; | |
c906108c SS |
1040 | |
1041 | update_current_target (); | |
c906108c | 1042 | |
305436e0 PA |
1043 | /* Finally close the target. Note we do this after unchaining, so |
1044 | any target method calls from within the target_close | |
1045 | implementation don't end up in T anymore. */ | |
460014f5 | 1046 | target_close (t); |
305436e0 | 1047 | |
c906108c SS |
1048 | return 1; |
1049 | } | |
1050 | ||
aa76d38d | 1051 | void |
460014f5 | 1052 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1053 | { |
87ab71f0 | 1054 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1055 | { |
aa76d38d PA |
1056 | if (!unpush_target (target_stack)) |
1057 | { | |
1058 | fprintf_unfiltered (gdb_stderr, | |
1059 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1060 | target_stack->to_shortname); |
aa76d38d PA |
1061 | internal_error (__FILE__, __LINE__, |
1062 | _("failed internal consistency check")); | |
1063 | break; | |
1064 | } | |
1065 | } | |
1066 | } | |
1067 | ||
87ab71f0 | 1068 | void |
460014f5 | 1069 | pop_all_targets (void) |
87ab71f0 | 1070 | { |
460014f5 | 1071 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1072 | } |
1073 | ||
c0edd9ed JK |
1074 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1075 | ||
1076 | int | |
1077 | target_is_pushed (struct target_ops *t) | |
1078 | { | |
1079 | struct target_ops **cur; | |
1080 | ||
1081 | /* Check magic number. If wrong, it probably means someone changed | |
1082 | the struct definition, but not all the places that initialize one. */ | |
1083 | if (t->to_magic != OPS_MAGIC) | |
1084 | { | |
1085 | fprintf_unfiltered (gdb_stderr, | |
1086 | "Magic number of %s target struct wrong\n", | |
1087 | t->to_shortname); | |
3e43a32a MS |
1088 | internal_error (__FILE__, __LINE__, |
1089 | _("failed internal consistency check")); | |
c0edd9ed JK |
1090 | } |
1091 | ||
1092 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1093 | if (*cur == t) | |
1094 | return 1; | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
72f5cf0e | 1099 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1100 | current thread's thread-local storage with offset OFFSET. */ |
1101 | CORE_ADDR | |
1102 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1103 | { | |
1104 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1105 | struct target_ops *target; |
1106 | ||
1107 | for (target = current_target.beneath; | |
1108 | target != NULL; | |
1109 | target = target->beneath) | |
1110 | { | |
1111 | if (target->to_get_thread_local_address != NULL) | |
1112 | break; | |
1113 | } | |
9e35dae4 | 1114 | |
117de6a9 | 1115 | if (target != NULL |
f5656ead | 1116 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1117 | { |
1118 | ptid_t ptid = inferior_ptid; | |
1119 | volatile struct gdb_exception ex; | |
1120 | ||
1121 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1122 | { | |
1123 | CORE_ADDR lm_addr; | |
1124 | ||
1125 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1126 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1127 | objfile); |
1128 | /* If it's 0, throw the appropriate exception. */ | |
1129 | if (lm_addr == 0) | |
1130 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1131 | _("TLS load module not found")); | |
1132 | ||
3e43a32a MS |
1133 | addr = target->to_get_thread_local_address (target, ptid, |
1134 | lm_addr, offset); | |
9e35dae4 DJ |
1135 | } |
1136 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1137 | throw the error to some higher catcher. */ | |
1138 | if (ex.reason < 0) | |
1139 | { | |
1140 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1141 | ||
1142 | switch (ex.error) | |
1143 | { | |
1144 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1145 | error (_("Cannot find thread-local variables " |
1146 | "in this thread library.")); | |
9e35dae4 DJ |
1147 | break; |
1148 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1149 | if (objfile_is_library) | |
1150 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 1151 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1152 | else |
1153 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 1154 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1155 | break; |
1156 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1157 | if (objfile_is_library) | |
1158 | error (_("The inferior has not yet allocated storage for" | |
1159 | " thread-local variables in\n" | |
1160 | "the shared library `%s'\n" | |
1161 | "for %s"), | |
4262abfb | 1162 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1163 | else |
1164 | error (_("The inferior has not yet allocated storage for" | |
1165 | " thread-local variables in\n" | |
1166 | "the executable `%s'\n" | |
1167 | "for %s"), | |
4262abfb | 1168 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1169 | break; |
1170 | case TLS_GENERIC_ERROR: | |
1171 | if (objfile_is_library) | |
1172 | error (_("Cannot find thread-local storage for %s, " | |
1173 | "shared library %s:\n%s"), | |
1174 | target_pid_to_str (ptid), | |
4262abfb | 1175 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1176 | else |
1177 | error (_("Cannot find thread-local storage for %s, " | |
1178 | "executable file %s:\n%s"), | |
1179 | target_pid_to_str (ptid), | |
4262abfb | 1180 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1181 | break; |
1182 | default: | |
1183 | throw_exception (ex); | |
1184 | break; | |
1185 | } | |
1186 | } | |
1187 | } | |
1188 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1189 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1190 | else | |
1191 | error (_("Cannot find thread-local variables on this target")); | |
1192 | ||
1193 | return addr; | |
1194 | } | |
1195 | ||
6be7b56e | 1196 | const char * |
9b409511 | 1197 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1198 | { |
1199 | #define CASE(X) case X: return #X | |
1200 | switch (err) | |
1201 | { | |
1202 | CASE(TARGET_XFER_E_IO); | |
1203 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1204 | default: | |
1205 | return "<unknown>"; | |
1206 | } | |
1207 | #undef CASE | |
1208 | }; | |
1209 | ||
1210 | ||
c906108c SS |
1211 | #undef MIN |
1212 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1213 | ||
1214 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1215 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1216 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1217 | is responsible for freeing it. Return the number of bytes successfully | |
1218 | read. */ | |
1219 | ||
1220 | int | |
fba45db2 | 1221 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1222 | { |
c2e8b827 | 1223 | int tlen, offset, i; |
1b0ba102 | 1224 | gdb_byte buf[4]; |
c906108c SS |
1225 | int errcode = 0; |
1226 | char *buffer; | |
1227 | int buffer_allocated; | |
1228 | char *bufptr; | |
1229 | unsigned int nbytes_read = 0; | |
1230 | ||
6217bf3e MS |
1231 | gdb_assert (string); |
1232 | ||
c906108c SS |
1233 | /* Small for testing. */ |
1234 | buffer_allocated = 4; | |
1235 | buffer = xmalloc (buffer_allocated); | |
1236 | bufptr = buffer; | |
1237 | ||
c906108c SS |
1238 | while (len > 0) |
1239 | { | |
1240 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1241 | offset = memaddr & 3; | |
1242 | ||
1b0ba102 | 1243 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1244 | if (errcode != 0) |
1245 | { | |
1246 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1247 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1248 | a single byte. */ |
1249 | tlen = 1; | |
1250 | offset = 0; | |
b8eb5af0 | 1251 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1252 | if (errcode != 0) |
1253 | goto done; | |
1254 | } | |
1255 | ||
1256 | if (bufptr - buffer + tlen > buffer_allocated) | |
1257 | { | |
1258 | unsigned int bytes; | |
5d502164 | 1259 | |
c906108c SS |
1260 | bytes = bufptr - buffer; |
1261 | buffer_allocated *= 2; | |
1262 | buffer = xrealloc (buffer, buffer_allocated); | |
1263 | bufptr = buffer + bytes; | |
1264 | } | |
1265 | ||
1266 | for (i = 0; i < tlen; i++) | |
1267 | { | |
1268 | *bufptr++ = buf[i + offset]; | |
1269 | if (buf[i + offset] == '\000') | |
1270 | { | |
1271 | nbytes_read += i + 1; | |
1272 | goto done; | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | memaddr += tlen; | |
1277 | len -= tlen; | |
1278 | nbytes_read += tlen; | |
1279 | } | |
c5aa993b | 1280 | done: |
6217bf3e | 1281 | *string = buffer; |
c906108c SS |
1282 | if (errnop != NULL) |
1283 | *errnop = errcode; | |
c906108c SS |
1284 | return nbytes_read; |
1285 | } | |
1286 | ||
07b82ea5 PA |
1287 | struct target_section_table * |
1288 | target_get_section_table (struct target_ops *target) | |
1289 | { | |
1290 | struct target_ops *t; | |
1291 | ||
1292 | if (targetdebug) | |
1293 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1294 | ||
1295 | for (t = target; t != NULL; t = t->beneath) | |
1296 | if (t->to_get_section_table != NULL) | |
1297 | return (*t->to_get_section_table) (t); | |
1298 | ||
1299 | return NULL; | |
1300 | } | |
1301 | ||
8db32d44 | 1302 | /* Find a section containing ADDR. */ |
07b82ea5 | 1303 | |
0542c86d | 1304 | struct target_section * |
8db32d44 AC |
1305 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1306 | { | |
07b82ea5 | 1307 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1308 | struct target_section *secp; |
07b82ea5 PA |
1309 | |
1310 | if (table == NULL) | |
1311 | return NULL; | |
1312 | ||
1313 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1314 | { |
1315 | if (addr >= secp->addr && addr < secp->endaddr) | |
1316 | return secp; | |
1317 | } | |
1318 | return NULL; | |
1319 | } | |
1320 | ||
e6e4e701 PA |
1321 | /* Read memory from the live target, even if currently inspecting a |
1322 | traceframe. The return is the same as that of target_read. */ | |
1323 | ||
9b409511 | 1324 | static enum target_xfer_status |
e6e4e701 | 1325 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1326 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1327 | ULONGEST *xfered_len) | |
e6e4e701 | 1328 | { |
9b409511 | 1329 | enum target_xfer_status ret; |
e6e4e701 PA |
1330 | struct cleanup *cleanup; |
1331 | ||
1332 | /* Switch momentarily out of tfind mode so to access live memory. | |
1333 | Note that this must not clear global state, such as the frame | |
1334 | cache, which must still remain valid for the previous traceframe. | |
1335 | We may be _building_ the frame cache at this point. */ | |
1336 | cleanup = make_cleanup_restore_traceframe_number (); | |
1337 | set_traceframe_number (-1); | |
1338 | ||
9b409511 YQ |
1339 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1340 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1341 | |
1342 | do_cleanups (cleanup); | |
1343 | return ret; | |
1344 | } | |
1345 | ||
1346 | /* Using the set of read-only target sections of OPS, read live | |
1347 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1348 | top-most target again. |
1349 | ||
1350 | For interface/parameters/return description see target.h, | |
1351 | to_xfer_partial. */ | |
e6e4e701 | 1352 | |
9b409511 | 1353 | static enum target_xfer_status |
e6e4e701 PA |
1354 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1355 | enum target_object object, | |
1356 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1357 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1358 | { |
1359 | struct target_section *secp; | |
1360 | struct target_section_table *table; | |
1361 | ||
1362 | secp = target_section_by_addr (ops, memaddr); | |
1363 | if (secp != NULL | |
2b2848e2 DE |
1364 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1365 | secp->the_bfd_section) | |
e6e4e701 PA |
1366 | & SEC_READONLY)) |
1367 | { | |
1368 | struct target_section *p; | |
1369 | ULONGEST memend = memaddr + len; | |
1370 | ||
1371 | table = target_get_section_table (ops); | |
1372 | ||
1373 | for (p = table->sections; p < table->sections_end; p++) | |
1374 | { | |
1375 | if (memaddr >= p->addr) | |
1376 | { | |
1377 | if (memend <= p->endaddr) | |
1378 | { | |
1379 | /* Entire transfer is within this section. */ | |
1380 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1381 | readbuf, len, xfered_len); |
e6e4e701 PA |
1382 | } |
1383 | else if (memaddr >= p->endaddr) | |
1384 | { | |
1385 | /* This section ends before the transfer starts. */ | |
1386 | continue; | |
1387 | } | |
1388 | else | |
1389 | { | |
1390 | /* This section overlaps the transfer. Just do half. */ | |
1391 | len = p->endaddr - memaddr; | |
1392 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1393 | readbuf, len, xfered_len); |
e6e4e701 PA |
1394 | } |
1395 | } | |
1396 | } | |
1397 | } | |
1398 | ||
9b409511 | 1399 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1400 | } |
1401 | ||
9f713294 YQ |
1402 | /* Read memory from more than one valid target. A core file, for |
1403 | instance, could have some of memory but delegate other bits to | |
1404 | the target below it. So, we must manually try all targets. */ | |
1405 | ||
9b409511 | 1406 | static enum target_xfer_status |
17fde6d0 | 1407 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1408 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1409 | ULONGEST *xfered_len) | |
9f713294 | 1410 | { |
9b409511 | 1411 | enum target_xfer_status res; |
9f713294 YQ |
1412 | |
1413 | do | |
1414 | { | |
1415 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1416 | readbuf, writebuf, memaddr, len, |
1417 | xfered_len); | |
1418 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1419 | break; |
1420 | ||
633785ff MM |
1421 | /* Stop if the target reports that the memory is not available. */ |
1422 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1423 | break; | |
1424 | ||
9f713294 YQ |
1425 | /* We want to continue past core files to executables, but not |
1426 | past a running target's memory. */ | |
1427 | if (ops->to_has_all_memory (ops)) | |
1428 | break; | |
1429 | ||
1430 | ops = ops->beneath; | |
1431 | } | |
1432 | while (ops != NULL); | |
1433 | ||
1434 | return res; | |
1435 | } | |
1436 | ||
7f79c47e DE |
1437 | /* Perform a partial memory transfer. |
1438 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1439 | |
9b409511 | 1440 | static enum target_xfer_status |
f0ba3972 | 1441 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1442 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1443 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1444 | { |
9b409511 | 1445 | enum target_xfer_status res; |
cf7a04e8 DJ |
1446 | int reg_len; |
1447 | struct mem_region *region; | |
4e5d721f | 1448 | struct inferior *inf; |
cf7a04e8 | 1449 | |
07b82ea5 PA |
1450 | /* For accesses to unmapped overlay sections, read directly from |
1451 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1452 | if (readbuf != NULL && overlay_debugging) | |
1453 | { | |
1454 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1455 | |
07b82ea5 PA |
1456 | if (pc_in_unmapped_range (memaddr, section)) |
1457 | { | |
1458 | struct target_section_table *table | |
1459 | = target_get_section_table (ops); | |
1460 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1461 | |
07b82ea5 PA |
1462 | memaddr = overlay_mapped_address (memaddr, section); |
1463 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1464 | memaddr, len, xfered_len, |
07b82ea5 PA |
1465 | table->sections, |
1466 | table->sections_end, | |
1467 | section_name); | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1472 | if (readbuf != NULL && trust_readonly) |
1473 | { | |
0542c86d | 1474 | struct target_section *secp; |
07b82ea5 | 1475 | struct target_section_table *table; |
cf7a04e8 DJ |
1476 | |
1477 | secp = target_section_by_addr (ops, memaddr); | |
1478 | if (secp != NULL | |
2b2848e2 DE |
1479 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1480 | secp->the_bfd_section) | |
cf7a04e8 | 1481 | & SEC_READONLY)) |
07b82ea5 PA |
1482 | { |
1483 | table = target_get_section_table (ops); | |
1484 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1485 | memaddr, len, xfered_len, |
07b82ea5 PA |
1486 | table->sections, |
1487 | table->sections_end, | |
1488 | NULL); | |
1489 | } | |
98646950 UW |
1490 | } |
1491 | ||
e6e4e701 PA |
1492 | /* If reading unavailable memory in the context of traceframes, and |
1493 | this address falls within a read-only section, fallback to | |
1494 | reading from live memory. */ | |
1495 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1496 | { | |
1497 | VEC(mem_range_s) *available; | |
1498 | ||
1499 | /* If we fail to get the set of available memory, then the | |
1500 | target does not support querying traceframe info, and so we | |
1501 | attempt reading from the traceframe anyway (assuming the | |
1502 | target implements the old QTro packet then). */ | |
1503 | if (traceframe_available_memory (&available, memaddr, len)) | |
1504 | { | |
1505 | struct cleanup *old_chain; | |
1506 | ||
1507 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1508 | ||
1509 | if (VEC_empty (mem_range_s, available) | |
1510 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1511 | { | |
1512 | /* Don't read into the traceframe's available | |
1513 | memory. */ | |
1514 | if (!VEC_empty (mem_range_s, available)) | |
1515 | { | |
1516 | LONGEST oldlen = len; | |
1517 | ||
1518 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1519 | gdb_assert (len <= oldlen); | |
1520 | } | |
1521 | ||
1522 | do_cleanups (old_chain); | |
1523 | ||
1524 | /* This goes through the topmost target again. */ | |
1525 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1526 | readbuf, memaddr, |
1527 | len, xfered_len); | |
1528 | if (res == TARGET_XFER_OK) | |
1529 | return TARGET_XFER_OK; | |
1530 | else | |
1531 | { | |
1532 | /* No use trying further, we know some memory starting | |
1533 | at MEMADDR isn't available. */ | |
1534 | *xfered_len = len; | |
1535 | return TARGET_XFER_E_UNAVAILABLE; | |
1536 | } | |
e6e4e701 PA |
1537 | } |
1538 | ||
1539 | /* Don't try to read more than how much is available, in | |
1540 | case the target implements the deprecated QTro packet to | |
1541 | cater for older GDBs (the target's knowledge of read-only | |
1542 | sections may be outdated by now). */ | |
1543 | len = VEC_index (mem_range_s, available, 0)->length; | |
1544 | ||
1545 | do_cleanups (old_chain); | |
1546 | } | |
1547 | } | |
1548 | ||
cf7a04e8 DJ |
1549 | /* Try GDB's internal data cache. */ |
1550 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1551 | /* region->hi == 0 means there's no upper bound. */ |
1552 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1553 | reg_len = len; |
1554 | else | |
1555 | reg_len = region->hi - memaddr; | |
1556 | ||
1557 | switch (region->attrib.mode) | |
1558 | { | |
1559 | case MEM_RO: | |
1560 | if (writebuf != NULL) | |
2ed4b548 | 1561 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1562 | break; |
1563 | ||
1564 | case MEM_WO: | |
1565 | if (readbuf != NULL) | |
2ed4b548 | 1566 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1567 | break; |
a76d924d DJ |
1568 | |
1569 | case MEM_FLASH: | |
1570 | /* We only support writing to flash during "load" for now. */ | |
1571 | if (writebuf != NULL) | |
1572 | error (_("Writing to flash memory forbidden in this context")); | |
1573 | break; | |
4b5752d0 VP |
1574 | |
1575 | case MEM_NONE: | |
2ed4b548 | 1576 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1577 | } |
1578 | ||
6c95b8df PA |
1579 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1580 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1581 | else | |
1582 | inf = NULL; | |
4e5d721f DE |
1583 | |
1584 | if (inf != NULL | |
2f4d8875 PA |
1585 | /* The dcache reads whole cache lines; that doesn't play well |
1586 | with reading from a trace buffer, because reading outside of | |
1587 | the collected memory range fails. */ | |
1588 | && get_traceframe_number () == -1 | |
4e5d721f | 1589 | && (region->attrib.cache |
29453a14 YQ |
1590 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1591 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1592 | { |
2a2f9fe4 | 1593 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1594 | int l; |
2a2f9fe4 | 1595 | |
cf7a04e8 | 1596 | if (readbuf != NULL) |
9b409511 | 1597 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1598 | else |
1599 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1600 | correctness dcache_xfer_memory should take readbuf and | |
1601 | writebuf. */ | |
9b409511 | 1602 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1603 | reg_len, 1); |
9b409511 YQ |
1604 | if (l <= 0) |
1605 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1606 | else |
9b409511 YQ |
1607 | { |
1608 | *xfered_len = (ULONGEST) l; | |
1609 | return TARGET_XFER_OK; | |
1610 | } | |
cf7a04e8 DJ |
1611 | } |
1612 | ||
1613 | /* If none of those methods found the memory we wanted, fall back | |
1614 | to a target partial transfer. Normally a single call to | |
1615 | to_xfer_partial is enough; if it doesn't recognize an object | |
1616 | it will call the to_xfer_partial of the next target down. | |
1617 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1618 | object which can be read from more than one valid target. |
1619 | A core file, for instance, could have some of memory but | |
1620 | delegate other bits to the target below it. So, we must | |
1621 | manually try all targets. */ | |
1622 | ||
1623 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1624 | xfered_len); | |
cf7a04e8 | 1625 | |
41dcd03f DE |
1626 | /* Make sure the cache gets updated no matter what - if we are writing |
1627 | to the stack. Even if this write is not tagged as such, we still need | |
1628 | to update the cache. */ | |
1629 | ||
9b409511 | 1630 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1631 | && inf != NULL |
1632 | && writebuf != NULL | |
f2de9785 | 1633 | && target_dcache_init_p () |
41dcd03f | 1634 | && !region->attrib.cache |
29453a14 YQ |
1635 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1636 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1637 | { |
f2de9785 | 1638 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1639 | |
9b409511 | 1640 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1641 | } |
1642 | ||
cf7a04e8 DJ |
1643 | /* If we still haven't got anything, return the last error. We |
1644 | give up. */ | |
1645 | return res; | |
0779438d AC |
1646 | } |
1647 | ||
f0ba3972 PA |
1648 | /* Perform a partial memory transfer. For docs see target.h, |
1649 | to_xfer_partial. */ | |
1650 | ||
9b409511 | 1651 | static enum target_xfer_status |
f0ba3972 | 1652 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1653 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1654 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1655 | { |
9b409511 | 1656 | enum target_xfer_status res; |
f0ba3972 PA |
1657 | |
1658 | /* Zero length requests are ok and require no work. */ | |
1659 | if (len == 0) | |
9b409511 | 1660 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1661 | |
1662 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1663 | breakpoint insns, thus hiding out from higher layers whether | |
1664 | there are software breakpoints inserted in the code stream. */ | |
1665 | if (readbuf != NULL) | |
1666 | { | |
9b409511 YQ |
1667 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1668 | xfered_len); | |
f0ba3972 | 1669 | |
9b409511 | 1670 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1671 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1672 | } | |
1673 | else | |
1674 | { | |
1675 | void *buf; | |
1676 | struct cleanup *old_chain; | |
1677 | ||
67c059c2 AB |
1678 | /* A large write request is likely to be partially satisfied |
1679 | by memory_xfer_partial_1. We will continually malloc | |
1680 | and free a copy of the entire write request for breakpoint | |
1681 | shadow handling even though we only end up writing a small | |
1682 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1683 | len = min (4096, len); | |
1684 | ||
f0ba3972 PA |
1685 | buf = xmalloc (len); |
1686 | old_chain = make_cleanup (xfree, buf); | |
1687 | memcpy (buf, writebuf, len); | |
1688 | ||
1689 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1690 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1691 | xfered_len); | |
f0ba3972 PA |
1692 | |
1693 | do_cleanups (old_chain); | |
1694 | } | |
1695 | ||
1696 | return res; | |
1697 | } | |
1698 | ||
8defab1a DJ |
1699 | static void |
1700 | restore_show_memory_breakpoints (void *arg) | |
1701 | { | |
1702 | show_memory_breakpoints = (uintptr_t) arg; | |
1703 | } | |
1704 | ||
1705 | struct cleanup * | |
1706 | make_show_memory_breakpoints_cleanup (int show) | |
1707 | { | |
1708 | int current = show_memory_breakpoints; | |
8defab1a | 1709 | |
5d502164 | 1710 | show_memory_breakpoints = show; |
8defab1a DJ |
1711 | return make_cleanup (restore_show_memory_breakpoints, |
1712 | (void *) (uintptr_t) current); | |
1713 | } | |
1714 | ||
7f79c47e DE |
1715 | /* For docs see target.h, to_xfer_partial. */ |
1716 | ||
9b409511 | 1717 | enum target_xfer_status |
27394598 AC |
1718 | target_xfer_partial (struct target_ops *ops, |
1719 | enum target_object object, const char *annex, | |
4ac248ca | 1720 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1721 | ULONGEST offset, ULONGEST len, |
1722 | ULONGEST *xfered_len) | |
27394598 | 1723 | { |
9b409511 | 1724 | enum target_xfer_status retval; |
27394598 AC |
1725 | |
1726 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1727 | |
ce6d0892 YQ |
1728 | /* Transfer is done when LEN is zero. */ |
1729 | if (len == 0) | |
9b409511 | 1730 | return TARGET_XFER_EOF; |
ce6d0892 | 1731 | |
d914c394 SS |
1732 | if (writebuf && !may_write_memory) |
1733 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1734 | core_addr_to_string_nz (offset), plongest (len)); | |
1735 | ||
9b409511 YQ |
1736 | *xfered_len = 0; |
1737 | ||
cf7a04e8 DJ |
1738 | /* If this is a memory transfer, let the memory-specific code |
1739 | have a look at it instead. Memory transfers are more | |
1740 | complicated. */ | |
29453a14 YQ |
1741 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1742 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1743 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1744 | writebuf, offset, len, xfered_len); |
9f713294 | 1745 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1746 | { |
9f713294 | 1747 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1748 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1749 | xfered_len); | |
cf7a04e8 | 1750 | } |
9f713294 YQ |
1751 | else |
1752 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1753 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1754 | |
27394598 AC |
1755 | if (targetdebug) |
1756 | { | |
1757 | const unsigned char *myaddr = NULL; | |
1758 | ||
1759 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1760 | "%s:target_xfer_partial " |
9b409511 | 1761 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1762 | ops->to_shortname, |
1763 | (int) object, | |
1764 | (annex ? annex : "(null)"), | |
53b71562 JB |
1765 | host_address_to_string (readbuf), |
1766 | host_address_to_string (writebuf), | |
0b1553bc | 1767 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1768 | pulongest (len), retval, |
1769 | pulongest (*xfered_len)); | |
27394598 AC |
1770 | |
1771 | if (readbuf) | |
1772 | myaddr = readbuf; | |
1773 | if (writebuf) | |
1774 | myaddr = writebuf; | |
9b409511 | 1775 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1776 | { |
1777 | int i; | |
2bc416ba | 1778 | |
27394598 | 1779 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1780 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1781 | { |
53b71562 | 1782 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1783 | { |
1784 | if (targetdebug < 2 && i > 0) | |
1785 | { | |
1786 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1787 | break; | |
1788 | } | |
1789 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1790 | } | |
2bc416ba | 1791 | |
27394598 AC |
1792 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1793 | } | |
1794 | } | |
2bc416ba | 1795 | |
27394598 AC |
1796 | fputc_unfiltered ('\n', gdb_stdlog); |
1797 | } | |
9b409511 YQ |
1798 | |
1799 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1800 | properly. Do assertion after printing debug messages, so that we | |
1801 | can find more clues on assertion failure from debugging messages. */ | |
1802 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1803 | gdb_assert (*xfered_len > 0); | |
1804 | ||
27394598 AC |
1805 | return retval; |
1806 | } | |
1807 | ||
578d3588 PA |
1808 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1809 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1810 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1811 | |
1812 | If an error occurs, no guarantee is made about the contents of the data at | |
1813 | MYADDR. In particular, the caller should not depend upon partial reads | |
1814 | filling the buffer with good data. There is no way for the caller to know | |
1815 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1816 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1817 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1818 | |
1819 | int | |
1b162304 | 1820 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1821 | { |
c35b1492 PA |
1822 | /* Dispatch to the topmost target, not the flattened current_target. |
1823 | Memory accesses check target->to_has_(all_)memory, and the | |
1824 | flattened target doesn't inherit those. */ | |
1825 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1826 | myaddr, memaddr, len) == len) |
1827 | return 0; | |
0779438d | 1828 | else |
578d3588 | 1829 | return TARGET_XFER_E_IO; |
c906108c SS |
1830 | } |
1831 | ||
aee4bf85 PA |
1832 | /* Like target_read_memory, but specify explicitly that this is a read |
1833 | from the target's raw memory. That is, this read bypasses the | |
1834 | dcache, breakpoint shadowing, etc. */ | |
1835 | ||
1836 | int | |
1837 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1838 | { | |
1839 | /* See comment in target_read_memory about why the request starts at | |
1840 | current_target.beneath. */ | |
1841 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1842 | myaddr, memaddr, len) == len) | |
1843 | return 0; | |
1844 | else | |
1845 | return TARGET_XFER_E_IO; | |
1846 | } | |
1847 | ||
4e5d721f DE |
1848 | /* Like target_read_memory, but specify explicitly that this is a read from |
1849 | the target's stack. This may trigger different cache behavior. */ | |
1850 | ||
1851 | int | |
45aa4659 | 1852 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1853 | { |
aee4bf85 PA |
1854 | /* See comment in target_read_memory about why the request starts at |
1855 | current_target.beneath. */ | |
4e5d721f DE |
1856 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1857 | myaddr, memaddr, len) == len) | |
1858 | return 0; | |
1859 | else | |
578d3588 | 1860 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1861 | } |
1862 | ||
29453a14 YQ |
1863 | /* Like target_read_memory, but specify explicitly that this is a read from |
1864 | the target's code. This may trigger different cache behavior. */ | |
1865 | ||
1866 | int | |
1867 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1868 | { | |
aee4bf85 PA |
1869 | /* See comment in target_read_memory about why the request starts at |
1870 | current_target.beneath. */ | |
29453a14 YQ |
1871 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1872 | myaddr, memaddr, len) == len) | |
1873 | return 0; | |
1874 | else | |
1875 | return TARGET_XFER_E_IO; | |
1876 | } | |
1877 | ||
7f79c47e | 1878 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1879 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1880 | error occurs. If an error occurs, no guarantee is made about how |
1881 | much data got written. Callers that can deal with partial writes | |
1882 | should call target_write. */ | |
7f79c47e | 1883 | |
c906108c | 1884 | int |
45aa4659 | 1885 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1886 | { |
aee4bf85 PA |
1887 | /* See comment in target_read_memory about why the request starts at |
1888 | current_target.beneath. */ | |
c35b1492 | 1889 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1890 | myaddr, memaddr, len) == len) |
1891 | return 0; | |
0779438d | 1892 | else |
578d3588 | 1893 | return TARGET_XFER_E_IO; |
c906108c | 1894 | } |
c5aa993b | 1895 | |
f0ba3972 | 1896 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1897 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1898 | if any error occurs. If an error occurs, no guarantee is made |
1899 | about how much data got written. Callers that can deal with | |
1900 | partial writes should call target_write. */ | |
f0ba3972 PA |
1901 | |
1902 | int | |
45aa4659 | 1903 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1904 | { |
aee4bf85 PA |
1905 | /* See comment in target_read_memory about why the request starts at |
1906 | current_target.beneath. */ | |
f0ba3972 PA |
1907 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1908 | myaddr, memaddr, len) == len) | |
1909 | return 0; | |
1910 | else | |
578d3588 | 1911 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1912 | } |
1913 | ||
fd79ecee DJ |
1914 | /* Fetch the target's memory map. */ |
1915 | ||
1916 | VEC(mem_region_s) * | |
1917 | target_memory_map (void) | |
1918 | { | |
1919 | VEC(mem_region_s) *result; | |
1920 | struct mem_region *last_one, *this_one; | |
1921 | int ix; | |
1922 | struct target_ops *t; | |
1923 | ||
1924 | if (targetdebug) | |
1925 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1926 | ||
1927 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1928 | if (t->to_memory_map != NULL) | |
1929 | break; | |
1930 | ||
1931 | if (t == NULL) | |
1932 | return NULL; | |
1933 | ||
1934 | result = t->to_memory_map (t); | |
1935 | if (result == NULL) | |
1936 | return NULL; | |
1937 | ||
1938 | qsort (VEC_address (mem_region_s, result), | |
1939 | VEC_length (mem_region_s, result), | |
1940 | sizeof (struct mem_region), mem_region_cmp); | |
1941 | ||
1942 | /* Check that regions do not overlap. Simultaneously assign | |
1943 | a numbering for the "mem" commands to use to refer to | |
1944 | each region. */ | |
1945 | last_one = NULL; | |
1946 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1947 | { | |
1948 | this_one->number = ix; | |
1949 | ||
1950 | if (last_one && last_one->hi > this_one->lo) | |
1951 | { | |
1952 | warning (_("Overlapping regions in memory map: ignoring")); | |
1953 | VEC_free (mem_region_s, result); | |
1954 | return NULL; | |
1955 | } | |
1956 | last_one = this_one; | |
1957 | } | |
1958 | ||
1959 | return result; | |
1960 | } | |
1961 | ||
a76d924d DJ |
1962 | void |
1963 | target_flash_erase (ULONGEST address, LONGEST length) | |
1964 | { | |
1965 | struct target_ops *t; | |
1966 | ||
1967 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1968 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1969 | { |
1970 | if (targetdebug) | |
1971 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1972 | hex_string (address), phex (length, 0)); | |
1973 | t->to_flash_erase (t, address, length); | |
1974 | return; | |
1975 | } | |
a76d924d DJ |
1976 | |
1977 | tcomplain (); | |
1978 | } | |
1979 | ||
1980 | void | |
1981 | target_flash_done (void) | |
1982 | { | |
1983 | struct target_ops *t; | |
1984 | ||
1985 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1986 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1987 | { |
1988 | if (targetdebug) | |
1989 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1990 | t->to_flash_done (t); | |
1991 | return; | |
1992 | } | |
a76d924d DJ |
1993 | |
1994 | tcomplain (); | |
1995 | } | |
1996 | ||
920d2a44 AC |
1997 | static void |
1998 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1999 | struct cmd_list_element *c, const char *value) | |
2000 | { | |
3e43a32a MS |
2001 | fprintf_filtered (file, |
2002 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
2003 | value); |
2004 | } | |
3a11626d | 2005 | |
1e3ff5ad AC |
2006 | /* More generic transfers. */ |
2007 | ||
9b409511 | 2008 | static enum target_xfer_status |
8aa91c1e | 2009 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 2010 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
2011 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
2012 | ULONGEST *xfered_len) | |
0088c768 AC |
2013 | { |
2014 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
2015 | && ops->deprecated_xfer_memory != NULL) |
2016 | /* If available, fall back to the target's | |
2017 | "deprecated_xfer_memory" method. */ | |
0088c768 | 2018 | { |
4b8a223f | 2019 | int xfered = -1; |
5d502164 | 2020 | |
0088c768 | 2021 | errno = 0; |
4b8a223f AC |
2022 | if (writebuf != NULL) |
2023 | { | |
2024 | void *buffer = xmalloc (len); | |
2025 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 2026 | |
4b8a223f | 2027 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
2028 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
2029 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
2030 | do_cleanups (cleanup); |
2031 | } | |
2032 | if (readbuf != NULL) | |
244e85c8 MS |
2033 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
2034 | 0/*read*/, NULL, ops); | |
0088c768 | 2035 | if (xfered > 0) |
9b409511 YQ |
2036 | { |
2037 | *xfered_len = (ULONGEST) xfered; | |
2038 | return TARGET_XFER_E_IO; | |
2039 | } | |
0088c768 | 2040 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
2041 | /* "deprecated_xfer_memory" uses 0, cross checked against |
2042 | ERRNO as one indication of an error. */ | |
9b409511 | 2043 | return TARGET_XFER_EOF; |
0088c768 | 2044 | else |
9b409511 | 2045 | return TARGET_XFER_E_IO; |
0088c768 | 2046 | } |
0088c768 | 2047 | else |
6b84065d TT |
2048 | { |
2049 | gdb_assert (ops->beneath != NULL); | |
2050 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2051 | readbuf, writebuf, offset, len, | |
2052 | xfered_len); | |
2053 | } | |
0088c768 AC |
2054 | } |
2055 | ||
7f79c47e | 2056 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2057 | |
9b409511 | 2058 | static enum target_xfer_status |
1e3ff5ad AC |
2059 | target_read_partial (struct target_ops *ops, |
2060 | enum target_object object, | |
1b0ba102 | 2061 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
2062 | ULONGEST offset, ULONGEST len, |
2063 | ULONGEST *xfered_len) | |
1e3ff5ad | 2064 | { |
9b409511 YQ |
2065 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
2066 | xfered_len); | |
1e3ff5ad AC |
2067 | } |
2068 | ||
8a55ffb0 | 2069 | static enum target_xfer_status |
1e3ff5ad AC |
2070 | target_write_partial (struct target_ops *ops, |
2071 | enum target_object object, | |
1b0ba102 | 2072 | const char *annex, const gdb_byte *buf, |
9b409511 | 2073 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 2074 | { |
9b409511 YQ |
2075 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
2076 | xfered_len); | |
1e3ff5ad AC |
2077 | } |
2078 | ||
2079 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2080 | |
2081 | /* For docs on target_read see target.h. */ | |
2082 | ||
1e3ff5ad AC |
2083 | LONGEST |
2084 | target_read (struct target_ops *ops, | |
2085 | enum target_object object, | |
1b0ba102 | 2086 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2087 | ULONGEST offset, LONGEST len) |
2088 | { | |
2089 | LONGEST xfered = 0; | |
5d502164 | 2090 | |
1e3ff5ad AC |
2091 | while (xfered < len) |
2092 | { | |
9b409511 YQ |
2093 | ULONGEST xfered_len; |
2094 | enum target_xfer_status status; | |
2095 | ||
2096 | status = target_read_partial (ops, object, annex, | |
2097 | (gdb_byte *) buf + xfered, | |
2098 | offset + xfered, len - xfered, | |
2099 | &xfered_len); | |
5d502164 | 2100 | |
1e3ff5ad | 2101 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 2102 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2103 | return xfered; |
9b409511 YQ |
2104 | else if (status == TARGET_XFER_OK) |
2105 | { | |
2106 | xfered += xfered_len; | |
2107 | QUIT; | |
2108 | } | |
2109 | else | |
0088c768 | 2110 | return -1; |
9b409511 | 2111 | |
1e3ff5ad AC |
2112 | } |
2113 | return len; | |
2114 | } | |
2115 | ||
f1a507a1 JB |
2116 | /* Assuming that the entire [begin, end) range of memory cannot be |
2117 | read, try to read whatever subrange is possible to read. | |
2118 | ||
2119 | The function returns, in RESULT, either zero or one memory block. | |
2120 | If there's a readable subrange at the beginning, it is completely | |
2121 | read and returned. Any further readable subrange will not be read. | |
2122 | Otherwise, if there's a readable subrange at the end, it will be | |
2123 | completely read and returned. Any readable subranges before it | |
2124 | (obviously, not starting at the beginning), will be ignored. In | |
2125 | other cases -- either no readable subrange, or readable subrange(s) | |
2126 | that is neither at the beginning, or end, nothing is returned. | |
2127 | ||
2128 | The purpose of this function is to handle a read across a boundary | |
2129 | of accessible memory in a case when memory map is not available. | |
2130 | The above restrictions are fine for this case, but will give | |
2131 | incorrect results if the memory is 'patchy'. However, supporting | |
2132 | 'patchy' memory would require trying to read every single byte, | |
2133 | and it seems unacceptable solution. Explicit memory map is | |
2134 | recommended for this case -- and target_read_memory_robust will | |
2135 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2136 | |
2137 | static void | |
3e43a32a MS |
2138 | read_whatever_is_readable (struct target_ops *ops, |
2139 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2140 | VEC(memory_read_result_s) **result) |
d5086790 | 2141 | { |
f1a507a1 | 2142 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2143 | ULONGEST current_begin = begin; |
2144 | ULONGEST current_end = end; | |
2145 | int forward; | |
2146 | memory_read_result_s r; | |
9b409511 | 2147 | ULONGEST xfered_len; |
8dedea02 VP |
2148 | |
2149 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2150 | if (end - begin <= 1) | |
13b3fd9b MS |
2151 | { |
2152 | xfree (buf); | |
2153 | return; | |
2154 | } | |
8dedea02 VP |
2155 | |
2156 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2157 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2158 | at the boundary of accessible region. */ |
2159 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 2160 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
2161 | { |
2162 | forward = 1; | |
2163 | ++current_begin; | |
2164 | } | |
2165 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
2166 | buf + (end-begin) - 1, end - 1, 1, |
2167 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
2168 | { |
2169 | forward = 0; | |
2170 | --current_end; | |
2171 | } | |
2172 | else | |
2173 | { | |
13b3fd9b | 2174 | xfree (buf); |
8dedea02 VP |
2175 | return; |
2176 | } | |
2177 | ||
2178 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2179 | found to be not readable as a whole. | |
2180 | ||
2181 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2182 | so there's no point trying further. */ | |
2183 | while (current_end - current_begin > 1) | |
2184 | { | |
2185 | ULONGEST first_half_begin, first_half_end; | |
2186 | ULONGEST second_half_begin, second_half_end; | |
2187 | LONGEST xfer; | |
8dedea02 | 2188 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2189 | |
8dedea02 VP |
2190 | if (forward) |
2191 | { | |
2192 | first_half_begin = current_begin; | |
2193 | first_half_end = middle; | |
2194 | second_half_begin = middle; | |
2195 | second_half_end = current_end; | |
2196 | } | |
2197 | else | |
2198 | { | |
2199 | first_half_begin = middle; | |
2200 | first_half_end = current_end; | |
2201 | second_half_begin = current_begin; | |
2202 | second_half_end = middle; | |
2203 | } | |
2204 | ||
2205 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2206 | buf + (first_half_begin - begin), | |
2207 | first_half_begin, | |
2208 | first_half_end - first_half_begin); | |
2209 | ||
2210 | if (xfer == first_half_end - first_half_begin) | |
2211 | { | |
c378eb4e | 2212 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2213 | other half. */ |
8dedea02 VP |
2214 | current_begin = second_half_begin; |
2215 | current_end = second_half_end; | |
2216 | } | |
2217 | else | |
2218 | { | |
c378eb4e MS |
2219 | /* This half is not readable. Because we've tried one byte, we |
2220 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2221 | iteration to divide again and try to read. |
2222 | ||
2223 | We don't handle the other half, because this function only tries | |
2224 | to read a single readable subrange. */ | |
2225 | current_begin = first_half_begin; | |
2226 | current_end = first_half_end; | |
2227 | } | |
2228 | } | |
2229 | ||
2230 | if (forward) | |
2231 | { | |
2232 | /* The [begin, current_begin) range has been read. */ | |
2233 | r.begin = begin; | |
2234 | r.end = current_begin; | |
2235 | r.data = buf; | |
2236 | } | |
2237 | else | |
2238 | { | |
2239 | /* The [current_end, end) range has been read. */ | |
2240 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2241 | |
8dedea02 VP |
2242 | r.data = xmalloc (rlen); |
2243 | memcpy (r.data, buf + current_end - begin, rlen); | |
2244 | r.begin = current_end; | |
2245 | r.end = end; | |
2246 | xfree (buf); | |
2247 | } | |
2248 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2249 | } | |
2250 | ||
2251 | void | |
2252 | free_memory_read_result_vector (void *x) | |
2253 | { | |
2254 | VEC(memory_read_result_s) *v = x; | |
2255 | memory_read_result_s *current; | |
2256 | int ix; | |
2257 | ||
2258 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2259 | { | |
2260 | xfree (current->data); | |
2261 | } | |
2262 | VEC_free (memory_read_result_s, v); | |
2263 | } | |
2264 | ||
2265 | VEC(memory_read_result_s) * | |
2266 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2267 | { | |
2268 | VEC(memory_read_result_s) *result = 0; | |
2269 | ||
2270 | LONGEST xfered = 0; | |
d5086790 VP |
2271 | while (xfered < len) |
2272 | { | |
8dedea02 VP |
2273 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2274 | LONGEST rlen; | |
5d502164 | 2275 | |
8dedea02 VP |
2276 | /* If there is no explicit region, a fake one should be created. */ |
2277 | gdb_assert (region); | |
2278 | ||
2279 | if (region->hi == 0) | |
2280 | rlen = len - xfered; | |
2281 | else | |
2282 | rlen = region->hi - offset; | |
2283 | ||
2284 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2285 | { |
c378eb4e | 2286 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2287 | if the region is explicitly marked inaccessible, or |
2288 | 'inaccessible-by-default' is in effect. */ | |
2289 | xfered += rlen; | |
2290 | } | |
2291 | else | |
2292 | { | |
2293 | LONGEST to_read = min (len - xfered, rlen); | |
2294 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2295 | ||
2296 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2297 | (gdb_byte *) buffer, | |
2298 | offset + xfered, to_read); | |
2299 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2300 | if (xfer <= 0) |
d5086790 | 2301 | { |
c378eb4e | 2302 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2303 | some subrange. */ |
2304 | xfree (buffer); | |
3e43a32a MS |
2305 | read_whatever_is_readable (ops, offset + xfered, |
2306 | offset + xfered + to_read, &result); | |
8dedea02 | 2307 | xfered += to_read; |
d5086790 | 2308 | } |
8dedea02 VP |
2309 | else |
2310 | { | |
2311 | struct memory_read_result r; | |
2312 | r.data = buffer; | |
2313 | r.begin = offset + xfered; | |
2314 | r.end = r.begin + xfer; | |
2315 | VEC_safe_push (memory_read_result_s, result, &r); | |
2316 | xfered += xfer; | |
2317 | } | |
2318 | QUIT; | |
d5086790 | 2319 | } |
d5086790 | 2320 | } |
8dedea02 | 2321 | return result; |
d5086790 VP |
2322 | } |
2323 | ||
8dedea02 | 2324 | |
cf7a04e8 DJ |
2325 | /* An alternative to target_write with progress callbacks. */ |
2326 | ||
1e3ff5ad | 2327 | LONGEST |
cf7a04e8 DJ |
2328 | target_write_with_progress (struct target_ops *ops, |
2329 | enum target_object object, | |
2330 | const char *annex, const gdb_byte *buf, | |
2331 | ULONGEST offset, LONGEST len, | |
2332 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2333 | { |
2334 | LONGEST xfered = 0; | |
a76d924d DJ |
2335 | |
2336 | /* Give the progress callback a chance to set up. */ | |
2337 | if (progress) | |
2338 | (*progress) (0, baton); | |
2339 | ||
1e3ff5ad AC |
2340 | while (xfered < len) |
2341 | { | |
9b409511 YQ |
2342 | ULONGEST xfered_len; |
2343 | enum target_xfer_status status; | |
2344 | ||
2345 | status = target_write_partial (ops, object, annex, | |
2346 | (gdb_byte *) buf + xfered, | |
2347 | offset + xfered, len - xfered, | |
2348 | &xfered_len); | |
cf7a04e8 | 2349 | |
9b409511 | 2350 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2351 | return xfered; |
9b409511 | 2352 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2353 | return -1; |
cf7a04e8 | 2354 | |
9b409511 | 2355 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2356 | if (progress) |
9b409511 | 2357 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2358 | |
9b409511 | 2359 | xfered += xfered_len; |
1e3ff5ad AC |
2360 | QUIT; |
2361 | } | |
2362 | return len; | |
2363 | } | |
2364 | ||
7f79c47e DE |
2365 | /* For docs on target_write see target.h. */ |
2366 | ||
cf7a04e8 DJ |
2367 | LONGEST |
2368 | target_write (struct target_ops *ops, | |
2369 | enum target_object object, | |
2370 | const char *annex, const gdb_byte *buf, | |
2371 | ULONGEST offset, LONGEST len) | |
2372 | { | |
2373 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2374 | NULL, NULL); | |
2375 | } | |
2376 | ||
159f81f3 DJ |
2377 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2378 | the size of the transferred data. PADDING additional bytes are | |
2379 | available in *BUF_P. This is a helper function for | |
2380 | target_read_alloc; see the declaration of that function for more | |
2381 | information. */ | |
13547ab6 | 2382 | |
159f81f3 DJ |
2383 | static LONGEST |
2384 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2385 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2386 | { |
2387 | size_t buf_alloc, buf_pos; | |
2388 | gdb_byte *buf; | |
13547ab6 DJ |
2389 | |
2390 | /* This function does not have a length parameter; it reads the | |
2391 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2392 | from one target and partly from another (in a different stratum, | |
2393 | e.g. a core file and an executable). Both reasons make it | |
2394 | unsuitable for reading memory. */ | |
2395 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2396 | ||
2397 | /* Start by reading up to 4K at a time. The target will throttle | |
2398 | this number down if necessary. */ | |
2399 | buf_alloc = 4096; | |
2400 | buf = xmalloc (buf_alloc); | |
2401 | buf_pos = 0; | |
2402 | while (1) | |
2403 | { | |
9b409511 YQ |
2404 | ULONGEST xfered_len; |
2405 | enum target_xfer_status status; | |
2406 | ||
2407 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2408 | buf_pos, buf_alloc - buf_pos - padding, | |
2409 | &xfered_len); | |
2410 | ||
2411 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2412 | { |
2413 | /* Read all there was. */ | |
2414 | if (buf_pos == 0) | |
2415 | xfree (buf); | |
2416 | else | |
2417 | *buf_p = buf; | |
2418 | return buf_pos; | |
2419 | } | |
9b409511 YQ |
2420 | else if (status != TARGET_XFER_OK) |
2421 | { | |
2422 | /* An error occurred. */ | |
2423 | xfree (buf); | |
2424 | return TARGET_XFER_E_IO; | |
2425 | } | |
13547ab6 | 2426 | |
9b409511 | 2427 | buf_pos += xfered_len; |
13547ab6 DJ |
2428 | |
2429 | /* If the buffer is filling up, expand it. */ | |
2430 | if (buf_alloc < buf_pos * 2) | |
2431 | { | |
2432 | buf_alloc *= 2; | |
2433 | buf = xrealloc (buf, buf_alloc); | |
2434 | } | |
2435 | ||
2436 | QUIT; | |
2437 | } | |
2438 | } | |
2439 | ||
159f81f3 DJ |
2440 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2441 | the size of the transferred data. See the declaration in "target.h" | |
2442 | function for more information about the return value. */ | |
2443 | ||
2444 | LONGEST | |
2445 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2446 | const char *annex, gdb_byte **buf_p) | |
2447 | { | |
2448 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2449 | } | |
2450 | ||
2451 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2452 | returned as a string, allocated using xmalloc. If an error occurs | |
2453 | or the transfer is unsupported, NULL is returned. Empty objects | |
2454 | are returned as allocated but empty strings. A warning is issued | |
2455 | if the result contains any embedded NUL bytes. */ | |
2456 | ||
2457 | char * | |
2458 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2459 | const char *annex) | |
2460 | { | |
39086a0e PA |
2461 | gdb_byte *buffer; |
2462 | char *bufstr; | |
7313baad | 2463 | LONGEST i, transferred; |
159f81f3 | 2464 | |
39086a0e PA |
2465 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2466 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2467 | |
2468 | if (transferred < 0) | |
2469 | return NULL; | |
2470 | ||
2471 | if (transferred == 0) | |
2472 | return xstrdup (""); | |
2473 | ||
39086a0e | 2474 | bufstr[transferred] = 0; |
7313baad UW |
2475 | |
2476 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2477 | for (i = strlen (bufstr); i < transferred; i++) |
2478 | if (bufstr[i] != 0) | |
7313baad UW |
2479 | { |
2480 | warning (_("target object %d, annex %s, " | |
2481 | "contained unexpected null characters"), | |
2482 | (int) object, annex ? annex : "(none)"); | |
2483 | break; | |
2484 | } | |
159f81f3 | 2485 | |
39086a0e | 2486 | return bufstr; |
159f81f3 DJ |
2487 | } |
2488 | ||
b6591e8b AC |
2489 | /* Memory transfer methods. */ |
2490 | ||
2491 | void | |
1b0ba102 | 2492 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2493 | LONGEST len) |
2494 | { | |
07b82ea5 PA |
2495 | /* This method is used to read from an alternate, non-current |
2496 | target. This read must bypass the overlay support (as symbols | |
2497 | don't match this target), and GDB's internal cache (wrong cache | |
2498 | for this target). */ | |
2499 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2500 | != len) |
578d3588 | 2501 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2502 | } |
2503 | ||
2504 | ULONGEST | |
5d502164 MS |
2505 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2506 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2507 | { |
f6519ebc | 2508 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2509 | |
2510 | gdb_assert (len <= sizeof (buf)); | |
2511 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2512 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2513 | } |
2514 | ||
3db08215 MM |
2515 | /* See target.h. */ |
2516 | ||
d914c394 SS |
2517 | int |
2518 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2519 | struct bp_target_info *bp_tgt) | |
2520 | { | |
2521 | if (!may_insert_breakpoints) | |
2522 | { | |
2523 | warning (_("May not insert breakpoints")); | |
2524 | return 1; | |
2525 | } | |
2526 | ||
6b84065d TT |
2527 | return current_target.to_insert_breakpoint (¤t_target, |
2528 | gdbarch, bp_tgt); | |
d914c394 SS |
2529 | } |
2530 | ||
3db08215 MM |
2531 | /* See target.h. */ |
2532 | ||
d914c394 | 2533 | int |
6b84065d TT |
2534 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2535 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2536 | { |
2537 | /* This is kind of a weird case to handle, but the permission might | |
2538 | have been changed after breakpoints were inserted - in which case | |
2539 | we should just take the user literally and assume that any | |
2540 | breakpoints should be left in place. */ | |
2541 | if (!may_insert_breakpoints) | |
2542 | { | |
2543 | warning (_("May not remove breakpoints")); | |
2544 | return 1; | |
2545 | } | |
2546 | ||
6b84065d TT |
2547 | return current_target.to_remove_breakpoint (¤t_target, |
2548 | gdbarch, bp_tgt); | |
d914c394 SS |
2549 | } |
2550 | ||
c906108c | 2551 | static void |
fba45db2 | 2552 | target_info (char *args, int from_tty) |
c906108c SS |
2553 | { |
2554 | struct target_ops *t; | |
c906108c | 2555 | int has_all_mem = 0; |
c5aa993b | 2556 | |
c906108c | 2557 | if (symfile_objfile != NULL) |
4262abfb JK |
2558 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2559 | objfile_name (symfile_objfile)); | |
c906108c | 2560 | |
258b763a | 2561 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2562 | { |
c35b1492 | 2563 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2564 | continue; |
2565 | ||
c5aa993b | 2566 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2567 | continue; |
2568 | if (has_all_mem) | |
3e43a32a MS |
2569 | printf_unfiltered (_("\tWhile running this, " |
2570 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2571 | printf_unfiltered ("%s:\n", t->to_longname); |
2572 | (t->to_files_info) (t); | |
c35b1492 | 2573 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2574 | } |
2575 | } | |
2576 | ||
fd79ecee DJ |
2577 | /* This function is called before any new inferior is created, e.g. |
2578 | by running a program, attaching, or connecting to a target. | |
2579 | It cleans up any state from previous invocations which might | |
2580 | change between runs. This is a subset of what target_preopen | |
2581 | resets (things which might change between targets). */ | |
2582 | ||
2583 | void | |
2584 | target_pre_inferior (int from_tty) | |
2585 | { | |
c378eb4e | 2586 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2587 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2588 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2589 | to reproduce: |
2590 | ||
2591 | bash$ ./foo& | |
2592 | [1] 4711 | |
2593 | bash$ ./foo& | |
2594 | [1] 4712 | |
2595 | bash$ gdb ./foo | |
2596 | [...] | |
2597 | (gdb) attach 4711 | |
2598 | (gdb) detach | |
2599 | (gdb) attach 4712 | |
2600 | Cannot access memory at address 0xdeadbeef | |
2601 | */ | |
b9db4ced | 2602 | |
50c71eaf PA |
2603 | /* In some OSs, the shared library list is the same/global/shared |
2604 | across inferiors. If code is shared between processes, so are | |
2605 | memory regions and features. */ | |
f5656ead | 2606 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2607 | { |
2608 | no_shared_libraries (NULL, from_tty); | |
2609 | ||
2610 | invalidate_target_mem_regions (); | |
424163ea | 2611 | |
50c71eaf PA |
2612 | target_clear_description (); |
2613 | } | |
8ffcbaaf YQ |
2614 | |
2615 | agent_capability_invalidate (); | |
fd79ecee DJ |
2616 | } |
2617 | ||
b8fa0bfa PA |
2618 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2619 | inferior. */ | |
2620 | ||
2621 | static int | |
2622 | dispose_inferior (struct inferior *inf, void *args) | |
2623 | { | |
2624 | struct thread_info *thread; | |
2625 | ||
2626 | thread = any_thread_of_process (inf->pid); | |
2627 | if (thread) | |
2628 | { | |
2629 | switch_to_thread (thread->ptid); | |
2630 | ||
2631 | /* Core inferiors actually should be detached, not killed. */ | |
2632 | if (target_has_execution) | |
2633 | target_kill (); | |
2634 | else | |
2635 | target_detach (NULL, 0); | |
2636 | } | |
2637 | ||
2638 | return 0; | |
2639 | } | |
2640 | ||
c906108c SS |
2641 | /* This is to be called by the open routine before it does |
2642 | anything. */ | |
2643 | ||
2644 | void | |
fba45db2 | 2645 | target_preopen (int from_tty) |
c906108c | 2646 | { |
c5aa993b | 2647 | dont_repeat (); |
c906108c | 2648 | |
b8fa0bfa | 2649 | if (have_inferiors ()) |
c5aa993b | 2650 | { |
adf40b2e | 2651 | if (!from_tty |
b8fa0bfa PA |
2652 | || !have_live_inferiors () |
2653 | || query (_("A program is being debugged already. Kill it? "))) | |
2654 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2655 | else |
8a3fe4f8 | 2656 | error (_("Program not killed.")); |
c906108c SS |
2657 | } |
2658 | ||
2659 | /* Calling target_kill may remove the target from the stack. But if | |
2660 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2661 | /* Leave the exec target, though. The user may be switching from a |
2662 | live process to a core of the same program. */ | |
460014f5 | 2663 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2664 | |
2665 | target_pre_inferior (from_tty); | |
c906108c SS |
2666 | } |
2667 | ||
2668 | /* Detach a target after doing deferred register stores. */ | |
2669 | ||
2670 | void | |
52554a0e | 2671 | target_detach (const char *args, int from_tty) |
c906108c | 2672 | { |
136d6dae VP |
2673 | struct target_ops* t; |
2674 | ||
f5656ead | 2675 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2676 | /* Don't remove global breakpoints here. They're removed on |
2677 | disconnection from the target. */ | |
2678 | ; | |
2679 | else | |
2680 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2681 | them before detaching. */ | |
dfd4cc63 | 2682 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2683 | |
24291992 PA |
2684 | prepare_for_detach (); |
2685 | ||
09da0d0a TT |
2686 | current_target.to_detach (¤t_target, args, from_tty); |
2687 | if (targetdebug) | |
2688 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2689 | args, from_tty); | |
c906108c SS |
2690 | } |
2691 | ||
6ad8ae5c DJ |
2692 | void |
2693 | target_disconnect (char *args, int from_tty) | |
2694 | { | |
597320e7 DJ |
2695 | struct target_ops *t; |
2696 | ||
50c71eaf PA |
2697 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2698 | are global across processes, we have to remove them before | |
2699 | disconnecting. */ | |
74960c60 VP |
2700 | remove_breakpoints (); |
2701 | ||
597320e7 DJ |
2702 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2703 | if (t->to_disconnect != NULL) | |
2704 | { | |
2705 | if (targetdebug) | |
2706 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2707 | args, from_tty); | |
2708 | t->to_disconnect (t, args, from_tty); | |
2709 | return; | |
2710 | } | |
2711 | ||
2712 | tcomplain (); | |
6ad8ae5c DJ |
2713 | } |
2714 | ||
117de6a9 | 2715 | ptid_t |
47608cb1 | 2716 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2717 | { |
2718 | struct target_ops *t; | |
6b84065d TT |
2719 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2720 | status, options); | |
117de6a9 | 2721 | |
6b84065d | 2722 | if (targetdebug) |
117de6a9 | 2723 | { |
6b84065d TT |
2724 | char *status_string; |
2725 | char *options_string; | |
117de6a9 | 2726 | |
6b84065d TT |
2727 | status_string = target_waitstatus_to_string (status); |
2728 | options_string = target_options_to_string (options); | |
2729 | fprintf_unfiltered (gdb_stdlog, | |
2730 | "target_wait (%d, status, options={%s})" | |
2731 | " = %d, %s\n", | |
2732 | ptid_get_pid (ptid), options_string, | |
2733 | ptid_get_pid (retval), status_string); | |
2734 | xfree (status_string); | |
2735 | xfree (options_string); | |
117de6a9 PA |
2736 | } |
2737 | ||
6b84065d | 2738 | return retval; |
117de6a9 PA |
2739 | } |
2740 | ||
2741 | char * | |
2742 | target_pid_to_str (ptid_t ptid) | |
2743 | { | |
2744 | struct target_ops *t; | |
2745 | ||
2746 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2747 | { | |
2748 | if (t->to_pid_to_str != NULL) | |
2749 | return (*t->to_pid_to_str) (t, ptid); | |
2750 | } | |
2751 | ||
2752 | return normal_pid_to_str (ptid); | |
2753 | } | |
2754 | ||
4694da01 TT |
2755 | char * |
2756 | target_thread_name (struct thread_info *info) | |
2757 | { | |
2758 | struct target_ops *t; | |
2759 | ||
2760 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2761 | { | |
2762 | if (t->to_thread_name != NULL) | |
503a628d | 2763 | return (*t->to_thread_name) (t, info); |
4694da01 TT |
2764 | } |
2765 | ||
2766 | return NULL; | |
2767 | } | |
2768 | ||
e1ac3328 | 2769 | void |
2ea28649 | 2770 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2771 | { |
28439f5e PA |
2772 | struct target_ops *t; |
2773 | ||
4e5d721f | 2774 | target_dcache_invalidate (); |
28439f5e | 2775 | |
6b84065d TT |
2776 | current_target.to_resume (¤t_target, ptid, step, signal); |
2777 | if (targetdebug) | |
2778 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2779 | ptid_get_pid (ptid), | |
2780 | step ? "step" : "continue", | |
2781 | gdb_signal_to_name (signal)); | |
28439f5e | 2782 | |
6b84065d TT |
2783 | registers_changed_ptid (ptid); |
2784 | set_executing (ptid, 1); | |
2785 | set_running (ptid, 1); | |
2786 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2787 | } |
2455069d UW |
2788 | |
2789 | void | |
2790 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2791 | { | |
2792 | struct target_ops *t; | |
2793 | ||
2794 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2795 | { | |
2796 | if (t->to_pass_signals != NULL) | |
2797 | { | |
2798 | if (targetdebug) | |
2799 | { | |
2800 | int i; | |
2801 | ||
2802 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2803 | numsigs); | |
2804 | ||
2805 | for (i = 0; i < numsigs; i++) | |
2806 | if (pass_signals[i]) | |
2807 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2808 | gdb_signal_to_name (i)); |
2455069d UW |
2809 | |
2810 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2811 | } | |
2812 | ||
94bedb42 | 2813 | (*t->to_pass_signals) (t, numsigs, pass_signals); |
2455069d UW |
2814 | return; |
2815 | } | |
2816 | } | |
2817 | } | |
2818 | ||
9b224c5e PA |
2819 | void |
2820 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2821 | { | |
2822 | struct target_ops *t; | |
2823 | ||
2824 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2825 | { | |
2826 | if (t->to_program_signals != NULL) | |
2827 | { | |
2828 | if (targetdebug) | |
2829 | { | |
2830 | int i; | |
2831 | ||
2832 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2833 | numsigs); | |
2834 | ||
2835 | for (i = 0; i < numsigs; i++) | |
2836 | if (program_signals[i]) | |
2837 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2838 | gdb_signal_to_name (i)); |
9b224c5e PA |
2839 | |
2840 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2841 | } | |
2842 | ||
daf5e9b6 | 2843 | (*t->to_program_signals) (t, numsigs, program_signals); |
9b224c5e PA |
2844 | return; |
2845 | } | |
2846 | } | |
2847 | } | |
2848 | ||
ee057212 DJ |
2849 | /* Look through the list of possible targets for a target that can |
2850 | follow forks. */ | |
2851 | ||
2852 | int | |
07107ca6 | 2853 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2854 | { |
2855 | struct target_ops *t; | |
2856 | ||
2857 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2858 | { | |
2859 | if (t->to_follow_fork != NULL) | |
2860 | { | |
07107ca6 | 2861 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2862 | |
ee057212 | 2863 | if (targetdebug) |
07107ca6 LM |
2864 | fprintf_unfiltered (gdb_stdlog, |
2865 | "target_follow_fork (%d, %d) = %d\n", | |
2866 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2867 | return retval; |
2868 | } | |
2869 | } | |
2870 | ||
2871 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2872 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2873 | _("could not find a target to follow fork")); |
ee057212 DJ |
2874 | } |
2875 | ||
136d6dae VP |
2876 | void |
2877 | target_mourn_inferior (void) | |
2878 | { | |
2879 | struct target_ops *t; | |
5d502164 | 2880 | |
136d6dae VP |
2881 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2882 | { | |
2883 | if (t->to_mourn_inferior != NULL) | |
2884 | { | |
2885 | t->to_mourn_inferior (t); | |
947b8855 PA |
2886 | if (targetdebug) |
2887 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2888 | |
2889 | /* We no longer need to keep handles on any of the object files. | |
2890 | Make sure to release them to avoid unnecessarily locking any | |
2891 | of them while we're not actually debugging. */ | |
2892 | bfd_cache_close_all (); | |
2893 | ||
136d6dae VP |
2894 | return; |
2895 | } | |
2896 | } | |
2897 | ||
2898 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2899 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2900 | } |
2901 | ||
424163ea DJ |
2902 | /* Look for a target which can describe architectural features, starting |
2903 | from TARGET. If we find one, return its description. */ | |
2904 | ||
2905 | const struct target_desc * | |
2906 | target_read_description (struct target_ops *target) | |
2907 | { | |
2908 | struct target_ops *t; | |
2909 | ||
2910 | for (t = target; t != NULL; t = t->beneath) | |
2911 | if (t->to_read_description != NULL) | |
2912 | { | |
2913 | const struct target_desc *tdesc; | |
2914 | ||
2915 | tdesc = t->to_read_description (t); | |
2916 | if (tdesc) | |
2917 | return tdesc; | |
2918 | } | |
2919 | ||
2920 | return NULL; | |
2921 | } | |
2922 | ||
08388c79 DE |
2923 | /* The default implementation of to_search_memory. |
2924 | This implements a basic search of memory, reading target memory and | |
2925 | performing the search here (as opposed to performing the search in on the | |
2926 | target side with, for example, gdbserver). */ | |
2927 | ||
2928 | int | |
2929 | simple_search_memory (struct target_ops *ops, | |
2930 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2931 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2932 | CORE_ADDR *found_addrp) | |
2933 | { | |
2934 | /* NOTE: also defined in find.c testcase. */ | |
2935 | #define SEARCH_CHUNK_SIZE 16000 | |
2936 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2937 | /* Buffer to hold memory contents for searching. */ | |
2938 | gdb_byte *search_buf; | |
2939 | unsigned search_buf_size; | |
2940 | struct cleanup *old_cleanups; | |
2941 | ||
2942 | search_buf_size = chunk_size + pattern_len - 1; | |
2943 | ||
2944 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2945 | if (search_space_len < search_buf_size) | |
2946 | search_buf_size = search_space_len; | |
2947 | ||
2948 | search_buf = malloc (search_buf_size); | |
2949 | if (search_buf == NULL) | |
5e1471f5 | 2950 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2951 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2952 | ||
2953 | /* Prime the search buffer. */ | |
2954 | ||
2955 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2956 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2957 | { | |
b3dc46ff AB |
2958 | warning (_("Unable to access %s bytes of target " |
2959 | "memory at %s, halting search."), | |
2960 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2961 | do_cleanups (old_cleanups); |
2962 | return -1; | |
2963 | } | |
2964 | ||
2965 | /* Perform the search. | |
2966 | ||
2967 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2968 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2969 | read in another N bytes. */ | |
2970 | ||
2971 | while (search_space_len >= pattern_len) | |
2972 | { | |
2973 | gdb_byte *found_ptr; | |
2974 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2975 | ||
2976 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2977 | pattern, pattern_len); | |
2978 | ||
2979 | if (found_ptr != NULL) | |
2980 | { | |
2981 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2982 | |
08388c79 DE |
2983 | *found_addrp = found_addr; |
2984 | do_cleanups (old_cleanups); | |
2985 | return 1; | |
2986 | } | |
2987 | ||
2988 | /* Not found in this chunk, skip to next chunk. */ | |
2989 | ||
2990 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2991 | if (search_space_len >= chunk_size) | |
2992 | search_space_len -= chunk_size; | |
2993 | else | |
2994 | search_space_len = 0; | |
2995 | ||
2996 | if (search_space_len >= pattern_len) | |
2997 | { | |
2998 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2999 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
3000 | int nr_to_read; |
3001 | ||
3002 | /* Copy the trailing part of the previous iteration to the front | |
3003 | of the buffer for the next iteration. */ | |
3004 | gdb_assert (keep_len == pattern_len - 1); | |
3005 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
3006 | ||
3007 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
3008 | ||
3009 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
3010 | search_buf + keep_len, read_addr, | |
3011 | nr_to_read) != nr_to_read) | |
3012 | { | |
b3dc46ff | 3013 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 3014 | "memory at %s, halting search."), |
b3dc46ff | 3015 | plongest (nr_to_read), |
08388c79 DE |
3016 | hex_string (read_addr)); |
3017 | do_cleanups (old_cleanups); | |
3018 | return -1; | |
3019 | } | |
3020 | ||
3021 | start_addr += chunk_size; | |
3022 | } | |
3023 | } | |
3024 | ||
3025 | /* Not found. */ | |
3026 | ||
3027 | do_cleanups (old_cleanups); | |
3028 | return 0; | |
3029 | } | |
3030 | ||
3031 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
3032 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
3033 | ||
3034 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
3035 | requiring halting of the search (e.g. memory read error). | |
3036 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
3037 | ||
3038 | int | |
3039 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
3040 | const gdb_byte *pattern, ULONGEST pattern_len, | |
3041 | CORE_ADDR *found_addrp) | |
3042 | { | |
3043 | struct target_ops *t; | |
3044 | int found; | |
3045 | ||
3046 | /* We don't use INHERIT to set current_target.to_search_memory, | |
3047 | so we have to scan the target stack and handle targetdebug | |
3048 | ourselves. */ | |
3049 | ||
3050 | if (targetdebug) | |
3051 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3052 | hex_string (start_addr)); | |
3053 | ||
3054 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3055 | if (t->to_search_memory != NULL) | |
3056 | break; | |
3057 | ||
3058 | if (t != NULL) | |
3059 | { | |
3060 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3061 | pattern, pattern_len, found_addrp); | |
3062 | } | |
3063 | else | |
3064 | { | |
3065 | /* If a special version of to_search_memory isn't available, use the | |
3066 | simple version. */ | |
c35b1492 | 3067 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3068 | start_addr, search_space_len, |
3069 | pattern, pattern_len, found_addrp); | |
3070 | } | |
3071 | ||
3072 | if (targetdebug) | |
3073 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3074 | ||
3075 | return found; | |
3076 | } | |
3077 | ||
8edfe269 DJ |
3078 | /* Look through the currently pushed targets. If none of them will |
3079 | be able to restart the currently running process, issue an error | |
3080 | message. */ | |
3081 | ||
3082 | void | |
3083 | target_require_runnable (void) | |
3084 | { | |
3085 | struct target_ops *t; | |
3086 | ||
3087 | for (t = target_stack; t != NULL; t = t->beneath) | |
3088 | { | |
3089 | /* If this target knows how to create a new program, then | |
3090 | assume we will still be able to after killing the current | |
3091 | one. Either killing and mourning will not pop T, or else | |
3092 | find_default_run_target will find it again. */ | |
3093 | if (t->to_create_inferior != NULL) | |
3094 | return; | |
3095 | ||
3096 | /* Do not worry about thread_stratum targets that can not | |
3097 | create inferiors. Assume they will be pushed again if | |
3098 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3099 | if (t->to_stratum == thread_stratum |
3100 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3101 | continue; |
3102 | ||
3e43a32a MS |
3103 | error (_("The \"%s\" target does not support \"run\". " |
3104 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3105 | t->to_shortname); |
3106 | } | |
3107 | ||
3108 | /* This function is only called if the target is running. In that | |
3109 | case there should have been a process_stratum target and it | |
c378eb4e | 3110 | should either know how to create inferiors, or not... */ |
9b20d036 | 3111 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3112 | } |
3113 | ||
c906108c SS |
3114 | /* Look through the list of possible targets for a target that can |
3115 | execute a run or attach command without any other data. This is | |
3116 | used to locate the default process stratum. | |
3117 | ||
5f667f2d PA |
3118 | If DO_MESG is not NULL, the result is always valid (error() is |
3119 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3120 | |
3121 | static struct target_ops * | |
fba45db2 | 3122 | find_default_run_target (char *do_mesg) |
c906108c SS |
3123 | { |
3124 | struct target_ops **t; | |
3125 | struct target_ops *runable = NULL; | |
3126 | int count; | |
3127 | ||
3128 | count = 0; | |
3129 | ||
3130 | for (t = target_structs; t < target_structs + target_struct_size; | |
3131 | ++t) | |
3132 | { | |
c5aa993b | 3133 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3134 | { |
3135 | runable = *t; | |
3136 | ++count; | |
3137 | } | |
3138 | } | |
3139 | ||
3140 | if (count != 1) | |
5f667f2d PA |
3141 | { |
3142 | if (do_mesg) | |
3143 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3144 | else | |
3145 | return NULL; | |
3146 | } | |
c906108c SS |
3147 | |
3148 | return runable; | |
3149 | } | |
3150 | ||
3151 | void | |
136d6dae | 3152 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3153 | { |
3154 | struct target_ops *t; | |
3155 | ||
c5aa993b | 3156 | t = find_default_run_target ("attach"); |
136d6dae | 3157 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3158 | return; |
3159 | } | |
3160 | ||
c906108c | 3161 | void |
136d6dae VP |
3162 | find_default_create_inferior (struct target_ops *ops, |
3163 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3164 | int from_tty) |
c906108c SS |
3165 | { |
3166 | struct target_ops *t; | |
3167 | ||
c5aa993b | 3168 | t = find_default_run_target ("run"); |
136d6dae | 3169 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3170 | return; |
3171 | } | |
3172 | ||
2c0b251b | 3173 | static int |
6a109b6b | 3174 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
3175 | { |
3176 | struct target_ops *t; | |
3177 | ||
5f667f2d PA |
3178 | /* This may be called before the target is pushed on the stack; |
3179 | look for the default process stratum. If there's none, gdb isn't | |
3180 | configured with a native debugger, and target remote isn't | |
3181 | connected yet. */ | |
3182 | t = find_default_run_target (NULL); | |
6b84065d | 3183 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 3184 | return (t->to_can_async_p) (t); |
b84876c2 PA |
3185 | return 0; |
3186 | } | |
3187 | ||
2c0b251b | 3188 | static int |
6a109b6b | 3189 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
3190 | { |
3191 | struct target_ops *t; | |
3192 | ||
5f667f2d PA |
3193 | /* This may be called before the target is pushed on the stack; |
3194 | look for the default process stratum. If there's none, gdb isn't | |
3195 | configured with a native debugger, and target remote isn't | |
3196 | connected yet. */ | |
3197 | t = find_default_run_target (NULL); | |
6b84065d | 3198 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 3199 | return (t->to_is_async_p) (t); |
b84876c2 PA |
3200 | return 0; |
3201 | } | |
3202 | ||
2c0b251b | 3203 | static int |
2a9a2795 | 3204 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
3205 | { |
3206 | struct target_ops *t; | |
3207 | ||
3208 | t = find_default_run_target (NULL); | |
3209 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 3210 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
3211 | return 0; |
3212 | } | |
3213 | ||
3214 | int | |
2c0b251b | 3215 | target_supports_non_stop (void) |
9908b566 VP |
3216 | { |
3217 | struct target_ops *t; | |
5d502164 | 3218 | |
9908b566 VP |
3219 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3220 | if (t->to_supports_non_stop) | |
2a9a2795 | 3221 | return t->to_supports_non_stop (t); |
9908b566 VP |
3222 | |
3223 | return 0; | |
3224 | } | |
3225 | ||
145b16a9 UW |
3226 | /* Implement the "info proc" command. */ |
3227 | ||
451b7c33 | 3228 | int |
145b16a9 UW |
3229 | target_info_proc (char *args, enum info_proc_what what) |
3230 | { | |
3231 | struct target_ops *t; | |
3232 | ||
3233 | /* If we're already connected to something that can get us OS | |
3234 | related data, use it. Otherwise, try using the native | |
3235 | target. */ | |
3236 | if (current_target.to_stratum >= process_stratum) | |
3237 | t = current_target.beneath; | |
3238 | else | |
3239 | t = find_default_run_target (NULL); | |
3240 | ||
3241 | for (; t != NULL; t = t->beneath) | |
3242 | { | |
3243 | if (t->to_info_proc != NULL) | |
3244 | { | |
3245 | t->to_info_proc (t, args, what); | |
3246 | ||
3247 | if (targetdebug) | |
3248 | fprintf_unfiltered (gdb_stdlog, | |
3249 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3250 | ||
451b7c33 | 3251 | return 1; |
145b16a9 UW |
3252 | } |
3253 | } | |
3254 | ||
451b7c33 | 3255 | return 0; |
145b16a9 UW |
3256 | } |
3257 | ||
03583c20 | 3258 | static int |
2bfc0540 | 3259 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
3260 | { |
3261 | struct target_ops *t; | |
3262 | ||
3263 | t = find_default_run_target (NULL); | |
3264 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 3265 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
3266 | return 0; |
3267 | } | |
3268 | ||
3269 | int | |
3270 | target_supports_disable_randomization (void) | |
3271 | { | |
3272 | struct target_ops *t; | |
3273 | ||
3274 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3275 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 3276 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
3277 | |
3278 | return 0; | |
3279 | } | |
9908b566 | 3280 | |
07e059b5 VP |
3281 | char * |
3282 | target_get_osdata (const char *type) | |
3283 | { | |
07e059b5 VP |
3284 | struct target_ops *t; |
3285 | ||
739ef7fb PA |
3286 | /* If we're already connected to something that can get us OS |
3287 | related data, use it. Otherwise, try using the native | |
3288 | target. */ | |
3289 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3290 | t = current_target.beneath; |
739ef7fb PA |
3291 | else |
3292 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3293 | |
3294 | if (!t) | |
3295 | return NULL; | |
3296 | ||
6d097e65 | 3297 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3298 | } |
3299 | ||
6c95b8df PA |
3300 | /* Determine the current address space of thread PTID. */ |
3301 | ||
3302 | struct address_space * | |
3303 | target_thread_address_space (ptid_t ptid) | |
3304 | { | |
c0694254 | 3305 | struct address_space *aspace; |
6c95b8df | 3306 | struct inferior *inf; |
c0694254 PA |
3307 | struct target_ops *t; |
3308 | ||
3309 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3310 | { | |
3311 | if (t->to_thread_address_space != NULL) | |
3312 | { | |
3313 | aspace = t->to_thread_address_space (t, ptid); | |
3314 | gdb_assert (aspace); | |
6c95b8df | 3315 | |
c0694254 PA |
3316 | if (targetdebug) |
3317 | fprintf_unfiltered (gdb_stdlog, | |
3318 | "target_thread_address_space (%s) = %d\n", | |
3319 | target_pid_to_str (ptid), | |
3320 | address_space_num (aspace)); | |
3321 | return aspace; | |
3322 | } | |
3323 | } | |
6c95b8df PA |
3324 | |
3325 | /* Fall-back to the "main" address space of the inferior. */ | |
3326 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3327 | ||
3328 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3329 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3330 | _("Can't determine the current " |
3331 | "address space of thread %s\n"), | |
6c95b8df PA |
3332 | target_pid_to_str (ptid)); |
3333 | ||
3334 | return inf->aspace; | |
3335 | } | |
3336 | ||
7313baad UW |
3337 | |
3338 | /* Target file operations. */ | |
3339 | ||
3340 | static struct target_ops * | |
3341 | default_fileio_target (void) | |
3342 | { | |
3343 | /* If we're already connected to something that can perform | |
3344 | file I/O, use it. Otherwise, try using the native target. */ | |
3345 | if (current_target.to_stratum >= process_stratum) | |
3346 | return current_target.beneath; | |
3347 | else | |
3348 | return find_default_run_target ("file I/O"); | |
3349 | } | |
3350 | ||
3351 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3352 | target file descriptor, or -1 if an error occurs (and set | |
3353 | *TARGET_ERRNO). */ | |
3354 | int | |
3355 | target_fileio_open (const char *filename, int flags, int mode, | |
3356 | int *target_errno) | |
3357 | { | |
3358 | struct target_ops *t; | |
3359 | ||
3360 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3361 | { | |
3362 | if (t->to_fileio_open != NULL) | |
3363 | { | |
cd897586 | 3364 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
3365 | |
3366 | if (targetdebug) | |
3367 | fprintf_unfiltered (gdb_stdlog, | |
3368 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3369 | filename, flags, mode, | |
3370 | fd, fd != -1 ? 0 : *target_errno); | |
3371 | return fd; | |
3372 | } | |
3373 | } | |
3374 | ||
3375 | *target_errno = FILEIO_ENOSYS; | |
3376 | return -1; | |
3377 | } | |
3378 | ||
3379 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3380 | Return the number of bytes written, or -1 if an error occurs | |
3381 | (and set *TARGET_ERRNO). */ | |
3382 | int | |
3383 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3384 | ULONGEST offset, int *target_errno) | |
3385 | { | |
3386 | struct target_ops *t; | |
3387 | ||
3388 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3389 | { | |
3390 | if (t->to_fileio_pwrite != NULL) | |
3391 | { | |
0d866f62 | 3392 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
3393 | target_errno); |
3394 | ||
3395 | if (targetdebug) | |
3396 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3397 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3398 | "= %d (%d)\n", |
a71b5a38 | 3399 | fd, len, pulongest (offset), |
7313baad UW |
3400 | ret, ret != -1 ? 0 : *target_errno); |
3401 | return ret; | |
3402 | } | |
3403 | } | |
3404 | ||
3405 | *target_errno = FILEIO_ENOSYS; | |
3406 | return -1; | |
3407 | } | |
3408 | ||
3409 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3410 | Return the number of bytes read, or -1 if an error occurs | |
3411 | (and set *TARGET_ERRNO). */ | |
3412 | int | |
3413 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3414 | ULONGEST offset, int *target_errno) | |
3415 | { | |
3416 | struct target_ops *t; | |
3417 | ||
3418 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3419 | { | |
3420 | if (t->to_fileio_pread != NULL) | |
3421 | { | |
a3be983c | 3422 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
3423 | target_errno); |
3424 | ||
3425 | if (targetdebug) | |
3426 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3427 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3428 | "= %d (%d)\n", |
a71b5a38 | 3429 | fd, len, pulongest (offset), |
7313baad UW |
3430 | ret, ret != -1 ? 0 : *target_errno); |
3431 | return ret; | |
3432 | } | |
3433 | } | |
3434 | ||
3435 | *target_errno = FILEIO_ENOSYS; | |
3436 | return -1; | |
3437 | } | |
3438 | ||
3439 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3440 | (and set *TARGET_ERRNO). */ | |
3441 | int | |
3442 | target_fileio_close (int fd, int *target_errno) | |
3443 | { | |
3444 | struct target_ops *t; | |
3445 | ||
3446 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3447 | { | |
3448 | if (t->to_fileio_close != NULL) | |
3449 | { | |
df39ea25 | 3450 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
3451 | |
3452 | if (targetdebug) | |
3453 | fprintf_unfiltered (gdb_stdlog, | |
3454 | "target_fileio_close (%d) = %d (%d)\n", | |
3455 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3456 | return ret; | |
3457 | } | |
3458 | } | |
3459 | ||
3460 | *target_errno = FILEIO_ENOSYS; | |
3461 | return -1; | |
3462 | } | |
3463 | ||
3464 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3465 | occurs (and set *TARGET_ERRNO). */ | |
3466 | int | |
3467 | target_fileio_unlink (const char *filename, int *target_errno) | |
3468 | { | |
3469 | struct target_ops *t; | |
3470 | ||
3471 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3472 | { | |
3473 | if (t->to_fileio_unlink != NULL) | |
3474 | { | |
dbbca37d | 3475 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
3476 | |
3477 | if (targetdebug) | |
3478 | fprintf_unfiltered (gdb_stdlog, | |
3479 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3480 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3481 | return ret; | |
3482 | } | |
3483 | } | |
3484 | ||
3485 | *target_errno = FILEIO_ENOSYS; | |
3486 | return -1; | |
3487 | } | |
3488 | ||
b9e7b9c3 UW |
3489 | /* Read value of symbolic link FILENAME on the target. Return a |
3490 | null-terminated string allocated via xmalloc, or NULL if an error | |
3491 | occurs (and set *TARGET_ERRNO). */ | |
3492 | char * | |
3493 | target_fileio_readlink (const char *filename, int *target_errno) | |
3494 | { | |
3495 | struct target_ops *t; | |
3496 | ||
3497 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3498 | { | |
3499 | if (t->to_fileio_readlink != NULL) | |
3500 | { | |
fab5aa7c | 3501 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
3502 | |
3503 | if (targetdebug) | |
3504 | fprintf_unfiltered (gdb_stdlog, | |
3505 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3506 | filename, ret? ret : "(nil)", | |
3507 | ret? 0 : *target_errno); | |
3508 | return ret; | |
3509 | } | |
3510 | } | |
3511 | ||
3512 | *target_errno = FILEIO_ENOSYS; | |
3513 | return NULL; | |
3514 | } | |
3515 | ||
7313baad UW |
3516 | static void |
3517 | target_fileio_close_cleanup (void *opaque) | |
3518 | { | |
3519 | int fd = *(int *) opaque; | |
3520 | int target_errno; | |
3521 | ||
3522 | target_fileio_close (fd, &target_errno); | |
3523 | } | |
3524 | ||
3525 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3526 | return the size of the transferred data. PADDING additional bytes are | |
3527 | available in *BUF_P. This is a helper function for | |
3528 | target_fileio_read_alloc; see the declaration of that function for more | |
3529 | information. */ | |
3530 | ||
3531 | static LONGEST | |
3532 | target_fileio_read_alloc_1 (const char *filename, | |
3533 | gdb_byte **buf_p, int padding) | |
3534 | { | |
3535 | struct cleanup *close_cleanup; | |
3536 | size_t buf_alloc, buf_pos; | |
3537 | gdb_byte *buf; | |
3538 | LONGEST n; | |
3539 | int fd; | |
3540 | int target_errno; | |
3541 | ||
3542 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3543 | if (fd == -1) | |
3544 | return -1; | |
3545 | ||
3546 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3547 | ||
3548 | /* Start by reading up to 4K at a time. The target will throttle | |
3549 | this number down if necessary. */ | |
3550 | buf_alloc = 4096; | |
3551 | buf = xmalloc (buf_alloc); | |
3552 | buf_pos = 0; | |
3553 | while (1) | |
3554 | { | |
3555 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3556 | buf_alloc - buf_pos - padding, buf_pos, | |
3557 | &target_errno); | |
3558 | if (n < 0) | |
3559 | { | |
3560 | /* An error occurred. */ | |
3561 | do_cleanups (close_cleanup); | |
3562 | xfree (buf); | |
3563 | return -1; | |
3564 | } | |
3565 | else if (n == 0) | |
3566 | { | |
3567 | /* Read all there was. */ | |
3568 | do_cleanups (close_cleanup); | |
3569 | if (buf_pos == 0) | |
3570 | xfree (buf); | |
3571 | else | |
3572 | *buf_p = buf; | |
3573 | return buf_pos; | |
3574 | } | |
3575 | ||
3576 | buf_pos += n; | |
3577 | ||
3578 | /* If the buffer is filling up, expand it. */ | |
3579 | if (buf_alloc < buf_pos * 2) | |
3580 | { | |
3581 | buf_alloc *= 2; | |
3582 | buf = xrealloc (buf, buf_alloc); | |
3583 | } | |
3584 | ||
3585 | QUIT; | |
3586 | } | |
3587 | } | |
3588 | ||
3589 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3590 | the size of the transferred data. See the declaration in "target.h" | |
3591 | function for more information about the return value. */ | |
3592 | ||
3593 | LONGEST | |
3594 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3595 | { | |
3596 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3597 | } | |
3598 | ||
3599 | /* Read target file FILENAME. The result is NUL-terminated and | |
3600 | returned as a string, allocated using xmalloc. If an error occurs | |
3601 | or the transfer is unsupported, NULL is returned. Empty objects | |
3602 | are returned as allocated but empty strings. A warning is issued | |
3603 | if the result contains any embedded NUL bytes. */ | |
3604 | ||
3605 | char * | |
3606 | target_fileio_read_stralloc (const char *filename) | |
3607 | { | |
39086a0e PA |
3608 | gdb_byte *buffer; |
3609 | char *bufstr; | |
7313baad UW |
3610 | LONGEST i, transferred; |
3611 | ||
39086a0e PA |
3612 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3613 | bufstr = (char *) buffer; | |
7313baad UW |
3614 | |
3615 | if (transferred < 0) | |
3616 | return NULL; | |
3617 | ||
3618 | if (transferred == 0) | |
3619 | return xstrdup (""); | |
3620 | ||
39086a0e | 3621 | bufstr[transferred] = 0; |
7313baad UW |
3622 | |
3623 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3624 | for (i = strlen (bufstr); i < transferred; i++) |
3625 | if (bufstr[i] != 0) | |
7313baad UW |
3626 | { |
3627 | warning (_("target file %s " | |
3628 | "contained unexpected null characters"), | |
3629 | filename); | |
3630 | break; | |
3631 | } | |
3632 | ||
39086a0e | 3633 | return bufstr; |
7313baad UW |
3634 | } |
3635 | ||
3636 | ||
e0d24f8d | 3637 | static int |
31568a15 TT |
3638 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3639 | CORE_ADDR addr, int len) | |
e0d24f8d | 3640 | { |
f5656ead | 3641 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3642 | } |
3643 | ||
5009afc5 AS |
3644 | static int |
3645 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3646 | CORE_ADDR addr, | |
3647 | CORE_ADDR start, int length) | |
3648 | { | |
3649 | return addr >= start && addr < start + length; | |
3650 | } | |
3651 | ||
c2250ad1 UW |
3652 | static struct gdbarch * |
3653 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3654 | { | |
f5656ead | 3655 | return target_gdbarch (); |
c2250ad1 UW |
3656 | } |
3657 | ||
c906108c | 3658 | static int |
fba45db2 | 3659 | return_zero (void) |
c906108c SS |
3660 | { |
3661 | return 0; | |
3662 | } | |
3663 | ||
3664 | static int | |
fba45db2 | 3665 | return_one (void) |
c906108c SS |
3666 | { |
3667 | return 1; | |
3668 | } | |
3669 | ||
ccaa32c7 GS |
3670 | static int |
3671 | return_minus_one (void) | |
3672 | { | |
3673 | return -1; | |
3674 | } | |
3675 | ||
1b67eb02 AS |
3676 | static void * |
3677 | return_null (void) | |
3678 | { | |
3679 | return 0; | |
3680 | } | |
3681 | ||
ed9a39eb JM |
3682 | /* |
3683 | * Find the next target down the stack from the specified target. | |
3684 | */ | |
3685 | ||
3686 | struct target_ops * | |
fba45db2 | 3687 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3688 | { |
258b763a | 3689 | return t->beneath; |
ed9a39eb JM |
3690 | } |
3691 | ||
8b06beed TT |
3692 | /* See target.h. */ |
3693 | ||
3694 | struct target_ops * | |
3695 | find_target_at (enum strata stratum) | |
3696 | { | |
3697 | struct target_ops *t; | |
3698 | ||
3699 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3700 | if (t->to_stratum == stratum) | |
3701 | return t; | |
3702 | ||
3703 | return NULL; | |
3704 | } | |
3705 | ||
c906108c SS |
3706 | \f |
3707 | /* The inferior process has died. Long live the inferior! */ | |
3708 | ||
3709 | void | |
fba45db2 | 3710 | generic_mourn_inferior (void) |
c906108c | 3711 | { |
7f9f62ba | 3712 | ptid_t ptid; |
c906108c | 3713 | |
7f9f62ba | 3714 | ptid = inferior_ptid; |
39f77062 | 3715 | inferior_ptid = null_ptid; |
7f9f62ba | 3716 | |
f59f708a PA |
3717 | /* Mark breakpoints uninserted in case something tries to delete a |
3718 | breakpoint while we delete the inferior's threads (which would | |
3719 | fail, since the inferior is long gone). */ | |
3720 | mark_breakpoints_out (); | |
3721 | ||
7f9f62ba PA |
3722 | if (!ptid_equal (ptid, null_ptid)) |
3723 | { | |
3724 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3725 | exit_inferior (pid); |
7f9f62ba PA |
3726 | } |
3727 | ||
f59f708a PA |
3728 | /* Note this wipes step-resume breakpoints, so needs to be done |
3729 | after exit_inferior, which ends up referencing the step-resume | |
3730 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3731 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3732 | |
c906108c SS |
3733 | registers_changed (); |
3734 | ||
c906108c SS |
3735 | reopen_exec_file (); |
3736 | reinit_frame_cache (); | |
3737 | ||
9a4105ab AC |
3738 | if (deprecated_detach_hook) |
3739 | deprecated_detach_hook (); | |
c906108c SS |
3740 | } |
3741 | \f | |
fd0a2a6f MK |
3742 | /* Convert a normal process ID to a string. Returns the string in a |
3743 | static buffer. */ | |
c906108c SS |
3744 | |
3745 | char * | |
39f77062 | 3746 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3747 | { |
fd0a2a6f | 3748 | static char buf[32]; |
c906108c | 3749 | |
5fff8fc0 | 3750 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3751 | return buf; |
3752 | } | |
3753 | ||
2c0b251b | 3754 | static char * |
117de6a9 PA |
3755 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3756 | { | |
3757 | return normal_pid_to_str (ptid); | |
3758 | } | |
3759 | ||
9b4eba8e HZ |
3760 | /* Error-catcher for target_find_memory_regions. */ |
3761 | static int | |
2e73927c TT |
3762 | dummy_find_memory_regions (struct target_ops *self, |
3763 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3764 | { |
9b4eba8e | 3765 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3766 | return 0; |
3767 | } | |
3768 | ||
9b4eba8e HZ |
3769 | /* Error-catcher for target_make_corefile_notes. */ |
3770 | static char * | |
fc6691b2 TT |
3771 | dummy_make_corefile_notes (struct target_ops *self, |
3772 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3773 | { |
9b4eba8e | 3774 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3775 | return NULL; |
3776 | } | |
3777 | ||
6b04bdb7 MS |
3778 | /* Error-catcher for target_get_bookmark. */ |
3779 | static gdb_byte * | |
dd0e2830 | 3780 | dummy_get_bookmark (struct target_ops *self, char *ignore1, int ignore2) |
6b04bdb7 MS |
3781 | { |
3782 | tcomplain (); | |
3783 | return NULL; | |
3784 | } | |
3785 | ||
3786 | /* Error-catcher for target_goto_bookmark. */ | |
3787 | static void | |
3c80fb48 | 3788 | dummy_goto_bookmark (struct target_ops *self, gdb_byte *ignore, int from_tty) |
6b04bdb7 MS |
3789 | { |
3790 | tcomplain (); | |
3791 | } | |
3792 | ||
c906108c SS |
3793 | /* Set up the handful of non-empty slots needed by the dummy target |
3794 | vector. */ | |
3795 | ||
3796 | static void | |
fba45db2 | 3797 | init_dummy_target (void) |
c906108c SS |
3798 | { |
3799 | dummy_target.to_shortname = "None"; | |
3800 | dummy_target.to_longname = "None"; | |
3801 | dummy_target.to_doc = ""; | |
c906108c | 3802 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3803 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3804 | dummy_target.to_supports_disable_randomization |
3805 | = find_default_supports_disable_randomization; | |
117de6a9 | 3806 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3807 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3808 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3809 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3810 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3811 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
c35b1492 PA |
3812 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3813 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3814 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3815 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3816 | dummy_target.to_has_execution |
3817 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3818 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3819 | |
3820 | install_dummy_methods (&dummy_target); | |
c906108c | 3821 | } |
c906108c | 3822 | \f |
c906108c | 3823 | static void |
fba45db2 | 3824 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3825 | { |
3826 | debug_target.to_open (args, from_tty); | |
3827 | ||
96baa820 | 3828 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3829 | } |
3830 | ||
f1c07ab0 | 3831 | void |
460014f5 | 3832 | target_close (struct target_ops *targ) |
f1c07ab0 | 3833 | { |
7fdc1521 TT |
3834 | gdb_assert (!target_is_pushed (targ)); |
3835 | ||
f1c07ab0 | 3836 | if (targ->to_xclose != NULL) |
460014f5 | 3837 | targ->to_xclose (targ); |
f1c07ab0 | 3838 | else if (targ->to_close != NULL) |
de90e03d | 3839 | targ->to_close (targ); |
947b8855 PA |
3840 | |
3841 | if (targetdebug) | |
460014f5 | 3842 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3843 | } |
3844 | ||
136d6dae VP |
3845 | void |
3846 | target_attach (char *args, int from_tty) | |
3847 | { | |
e9a29200 TT |
3848 | current_target.to_attach (¤t_target, args, from_tty); |
3849 | if (targetdebug) | |
3850 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3851 | args, from_tty); | |
136d6dae VP |
3852 | } |
3853 | ||
28439f5e PA |
3854 | int |
3855 | target_thread_alive (ptid_t ptid) | |
c906108c | 3856 | { |
28439f5e | 3857 | struct target_ops *t; |
5d502164 | 3858 | |
28439f5e PA |
3859 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3860 | { | |
3861 | if (t->to_thread_alive != NULL) | |
3862 | { | |
3863 | int retval; | |
c906108c | 3864 | |
28439f5e PA |
3865 | retval = t->to_thread_alive (t, ptid); |
3866 | if (targetdebug) | |
3867 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3868 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3869 | |
3870 | return retval; | |
3871 | } | |
3872 | } | |
3873 | ||
3874 | return 0; | |
3875 | } | |
3876 | ||
3877 | void | |
3878 | target_find_new_threads (void) | |
3879 | { | |
3880 | struct target_ops *t; | |
5d502164 | 3881 | |
28439f5e PA |
3882 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3883 | { | |
3884 | if (t->to_find_new_threads != NULL) | |
3885 | { | |
3886 | t->to_find_new_threads (t); | |
3887 | if (targetdebug) | |
3888 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3889 | ||
3890 | return; | |
3891 | } | |
3892 | } | |
c906108c SS |
3893 | } |
3894 | ||
d914c394 SS |
3895 | void |
3896 | target_stop (ptid_t ptid) | |
3897 | { | |
3898 | if (!may_stop) | |
3899 | { | |
3900 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3901 | return; | |
3902 | } | |
3903 | ||
1eab8a48 | 3904 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3905 | } |
3906 | ||
c906108c | 3907 | static void |
f045800c | 3908 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3909 | { |
f045800c | 3910 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3911 | |
28439f5e | 3912 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3913 | } |
3914 | ||
09826ec5 PA |
3915 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3916 | result. The LIST incoming argument is released. */ | |
3917 | ||
3918 | static char * | |
3919 | str_comma_list_concat_elem (char *list, const char *elem) | |
3920 | { | |
3921 | if (list == NULL) | |
3922 | return xstrdup (elem); | |
3923 | else | |
3924 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3925 | } | |
3926 | ||
3927 | /* Helper for target_options_to_string. If OPT is present in | |
3928 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3929 | Returns the new resulting string. OPT is removed from | |
3930 | TARGET_OPTIONS. */ | |
3931 | ||
3932 | static char * | |
3933 | do_option (int *target_options, char *ret, | |
3934 | int opt, char *opt_str) | |
3935 | { | |
3936 | if ((*target_options & opt) != 0) | |
3937 | { | |
3938 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3939 | *target_options &= ~opt; | |
3940 | } | |
3941 | ||
3942 | return ret; | |
3943 | } | |
3944 | ||
3945 | char * | |
3946 | target_options_to_string (int target_options) | |
3947 | { | |
3948 | char *ret = NULL; | |
3949 | ||
3950 | #define DO_TARG_OPTION(OPT) \ | |
3951 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3952 | ||
3953 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3954 | ||
3955 | if (target_options != 0) | |
3956 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3957 | ||
3958 | if (ret == NULL) | |
3959 | ret = xstrdup (""); | |
3960 | return ret; | |
3961 | } | |
3962 | ||
bf0c5130 | 3963 | static void |
56be3814 UW |
3964 | debug_print_register (const char * func, |
3965 | struct regcache *regcache, int regno) | |
bf0c5130 | 3966 | { |
f8d29908 | 3967 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3968 | |
bf0c5130 | 3969 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3970 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3971 | && gdbarch_register_name (gdbarch, regno) != NULL |
3972 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3973 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3974 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3975 | else |
3976 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3977 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3978 | { |
e17a4113 | 3979 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3980 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3981 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3982 | |
0ff58721 | 3983 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3984 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3985 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3986 | { |
3987 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3988 | } | |
81c4a259 | 3989 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3990 | { |
e17a4113 | 3991 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3992 | |
0b1553bc UW |
3993 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3994 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3995 | } |
3996 | } | |
3997 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3998 | } | |
3999 | ||
28439f5e PA |
4000 | void |
4001 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 4002 | { |
28439f5e | 4003 | struct target_ops *t; |
5d502164 | 4004 | |
28439f5e PA |
4005 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
4006 | { | |
4007 | if (t->to_fetch_registers != NULL) | |
4008 | { | |
4009 | t->to_fetch_registers (t, regcache, regno); | |
4010 | if (targetdebug) | |
4011 | debug_print_register ("target_fetch_registers", regcache, regno); | |
4012 | return; | |
4013 | } | |
4014 | } | |
c906108c SS |
4015 | } |
4016 | ||
28439f5e PA |
4017 | void |
4018 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 4019 | { |
28439f5e | 4020 | struct target_ops *t; |
5d502164 | 4021 | |
d914c394 SS |
4022 | if (!may_write_registers) |
4023 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
4024 | ||
6b84065d TT |
4025 | current_target.to_store_registers (¤t_target, regcache, regno); |
4026 | if (targetdebug) | |
28439f5e | 4027 | { |
6b84065d | 4028 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 4029 | } |
c906108c SS |
4030 | } |
4031 | ||
dc146f7c VP |
4032 | int |
4033 | target_core_of_thread (ptid_t ptid) | |
4034 | { | |
4035 | struct target_ops *t; | |
4036 | ||
4037 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4038 | { | |
4039 | if (t->to_core_of_thread != NULL) | |
4040 | { | |
4041 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 4042 | |
dc146f7c | 4043 | if (targetdebug) |
3e43a32a MS |
4044 | fprintf_unfiltered (gdb_stdlog, |
4045 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 4046 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
4047 | return retval; |
4048 | } | |
4049 | } | |
4050 | ||
4051 | return -1; | |
4052 | } | |
4053 | ||
4a5e7a5b PA |
4054 | int |
4055 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4056 | { | |
4057 | struct target_ops *t; | |
4058 | ||
4059 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4060 | { | |
4061 | if (t->to_verify_memory != NULL) | |
4062 | { | |
4063 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4064 | |
4a5e7a5b | 4065 | if (targetdebug) |
3e43a32a MS |
4066 | fprintf_unfiltered (gdb_stdlog, |
4067 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4068 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4069 | pulongest (size), |
4070 | retval); | |
4071 | return retval; | |
4072 | } | |
4073 | } | |
4074 | ||
4075 | tcomplain (); | |
4076 | } | |
4077 | ||
9c06b0b4 TJB |
4078 | /* The documentation for this function is in its prototype declaration in |
4079 | target.h. */ | |
4080 | ||
4081 | int | |
4082 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4083 | { | |
4084 | struct target_ops *t; | |
4085 | ||
4086 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4087 | if (t->to_insert_mask_watchpoint != NULL) | |
4088 | { | |
4089 | int ret; | |
4090 | ||
4091 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4092 | ||
4093 | if (targetdebug) | |
4094 | fprintf_unfiltered (gdb_stdlog, "\ | |
4095 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4096 | core_addr_to_string (addr), | |
4097 | core_addr_to_string (mask), rw, ret); | |
4098 | ||
4099 | return ret; | |
4100 | } | |
4101 | ||
4102 | return 1; | |
4103 | } | |
4104 | ||
4105 | /* The documentation for this function is in its prototype declaration in | |
4106 | target.h. */ | |
4107 | ||
4108 | int | |
4109 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4110 | { | |
4111 | struct target_ops *t; | |
4112 | ||
4113 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4114 | if (t->to_remove_mask_watchpoint != NULL) | |
4115 | { | |
4116 | int ret; | |
4117 | ||
4118 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4119 | ||
4120 | if (targetdebug) | |
4121 | fprintf_unfiltered (gdb_stdlog, "\ | |
4122 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4123 | core_addr_to_string (addr), | |
4124 | core_addr_to_string (mask), rw, ret); | |
4125 | ||
4126 | return ret; | |
4127 | } | |
4128 | ||
4129 | return 1; | |
4130 | } | |
4131 | ||
4132 | /* The documentation for this function is in its prototype declaration | |
4133 | in target.h. */ | |
4134 | ||
4135 | int | |
4136 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4137 | { | |
4138 | struct target_ops *t; | |
4139 | ||
4140 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4141 | if (t->to_masked_watch_num_registers != NULL) | |
4142 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4143 | ||
4144 | return -1; | |
4145 | } | |
4146 | ||
f1310107 TJB |
4147 | /* The documentation for this function is in its prototype declaration |
4148 | in target.h. */ | |
4149 | ||
4150 | int | |
4151 | target_ranged_break_num_registers (void) | |
4152 | { | |
4153 | struct target_ops *t; | |
4154 | ||
4155 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4156 | if (t->to_ranged_break_num_registers != NULL) | |
4157 | return t->to_ranged_break_num_registers (t); | |
4158 | ||
4159 | return -1; | |
4160 | } | |
4161 | ||
02d27625 MM |
4162 | /* See target.h. */ |
4163 | ||
02d27625 MM |
4164 | struct btrace_target_info * |
4165 | target_enable_btrace (ptid_t ptid) | |
4166 | { | |
4167 | struct target_ops *t; | |
4168 | ||
4169 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4170 | if (t->to_enable_btrace != NULL) | |
e3c49f88 | 4171 | return t->to_enable_btrace (t, ptid); |
02d27625 MM |
4172 | |
4173 | tcomplain (); | |
4174 | return NULL; | |
4175 | } | |
4176 | ||
4177 | /* See target.h. */ | |
4178 | ||
4179 | void | |
4180 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4181 | { | |
4182 | struct target_ops *t; | |
4183 | ||
4184 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4185 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 | 4186 | { |
25e95349 | 4187 | t->to_disable_btrace (t, btinfo); |
d92f7ee3 SDJ |
4188 | return; |
4189 | } | |
02d27625 MM |
4190 | |
4191 | tcomplain (); | |
4192 | } | |
4193 | ||
4194 | /* See target.h. */ | |
4195 | ||
4196 | void | |
4197 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4198 | { | |
4199 | struct target_ops *t; | |
4200 | ||
4201 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4202 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 | 4203 | { |
1777056d | 4204 | t->to_teardown_btrace (t, btinfo); |
d92f7ee3 SDJ |
4205 | return; |
4206 | } | |
02d27625 MM |
4207 | |
4208 | tcomplain (); | |
4209 | } | |
4210 | ||
4211 | /* See target.h. */ | |
4212 | ||
969c39fb MM |
4213 | enum btrace_error |
4214 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
4215 | struct btrace_target_info *btinfo, | |
02d27625 MM |
4216 | enum btrace_read_type type) |
4217 | { | |
4218 | struct target_ops *t; | |
4219 | ||
4220 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4221 | if (t->to_read_btrace != NULL) | |
39c49f83 | 4222 | return t->to_read_btrace (t, btrace, btinfo, type); |
02d27625 MM |
4223 | |
4224 | tcomplain (); | |
969c39fb | 4225 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
4226 | } |
4227 | ||
d02ed0bb MM |
4228 | /* See target.h. */ |
4229 | ||
7c1687a9 MM |
4230 | void |
4231 | target_stop_recording (void) | |
4232 | { | |
4233 | struct target_ops *t; | |
4234 | ||
4235 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4236 | if (t->to_stop_recording != NULL) | |
4237 | { | |
c6cd7c02 | 4238 | t->to_stop_recording (t); |
7c1687a9 MM |
4239 | return; |
4240 | } | |
4241 | ||
4242 | /* This is optional. */ | |
4243 | } | |
4244 | ||
4245 | /* See target.h. */ | |
4246 | ||
d02ed0bb MM |
4247 | void |
4248 | target_info_record (void) | |
4249 | { | |
4250 | struct target_ops *t; | |
4251 | ||
4252 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4253 | if (t->to_info_record != NULL) | |
4254 | { | |
630d6a4a | 4255 | t->to_info_record (t); |
d02ed0bb MM |
4256 | return; |
4257 | } | |
4258 | ||
4259 | tcomplain (); | |
4260 | } | |
4261 | ||
4262 | /* See target.h. */ | |
4263 | ||
4264 | void | |
85e1311a | 4265 | target_save_record (const char *filename) |
d02ed0bb MM |
4266 | { |
4267 | struct target_ops *t; | |
4268 | ||
4269 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4270 | if (t->to_save_record != NULL) | |
4271 | { | |
1390f529 | 4272 | t->to_save_record (t, filename); |
d02ed0bb MM |
4273 | return; |
4274 | } | |
4275 | ||
4276 | tcomplain (); | |
4277 | } | |
4278 | ||
4279 | /* See target.h. */ | |
4280 | ||
4281 | int | |
4282 | target_supports_delete_record (void) | |
4283 | { | |
4284 | struct target_ops *t; | |
4285 | ||
4286 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4287 | if (t->to_delete_record != NULL) | |
4288 | return 1; | |
4289 | ||
4290 | return 0; | |
4291 | } | |
4292 | ||
4293 | /* See target.h. */ | |
4294 | ||
4295 | void | |
4296 | target_delete_record (void) | |
4297 | { | |
4298 | struct target_ops *t; | |
4299 | ||
4300 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4301 | if (t->to_delete_record != NULL) | |
4302 | { | |
d1b55219 | 4303 | t->to_delete_record (t); |
d02ed0bb MM |
4304 | return; |
4305 | } | |
4306 | ||
4307 | tcomplain (); | |
4308 | } | |
4309 | ||
4310 | /* See target.h. */ | |
4311 | ||
4312 | int | |
4313 | target_record_is_replaying (void) | |
4314 | { | |
4315 | struct target_ops *t; | |
4316 | ||
4317 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4318 | if (t->to_record_is_replaying != NULL) | |
1c63c994 | 4319 | return t->to_record_is_replaying (t); |
d02ed0bb MM |
4320 | |
4321 | return 0; | |
4322 | } | |
4323 | ||
4324 | /* See target.h. */ | |
4325 | ||
4326 | void | |
4327 | target_goto_record_begin (void) | |
4328 | { | |
4329 | struct target_ops *t; | |
4330 | ||
4331 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4332 | if (t->to_goto_record_begin != NULL) | |
4333 | { | |
08475817 | 4334 | t->to_goto_record_begin (t); |
d02ed0bb MM |
4335 | return; |
4336 | } | |
4337 | ||
4338 | tcomplain (); | |
4339 | } | |
4340 | ||
4341 | /* See target.h. */ | |
4342 | ||
4343 | void | |
4344 | target_goto_record_end (void) | |
4345 | { | |
4346 | struct target_ops *t; | |
4347 | ||
4348 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4349 | if (t->to_goto_record_end != NULL) | |
4350 | { | |
307a1b91 | 4351 | t->to_goto_record_end (t); |
d02ed0bb MM |
4352 | return; |
4353 | } | |
4354 | ||
4355 | tcomplain (); | |
4356 | } | |
4357 | ||
4358 | /* See target.h. */ | |
4359 | ||
4360 | void | |
4361 | target_goto_record (ULONGEST insn) | |
4362 | { | |
4363 | struct target_ops *t; | |
4364 | ||
4365 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4366 | if (t->to_goto_record != NULL) | |
4367 | { | |
606183ac | 4368 | t->to_goto_record (t, insn); |
d02ed0bb MM |
4369 | return; |
4370 | } | |
4371 | ||
4372 | tcomplain (); | |
4373 | } | |
4374 | ||
67c86d06 MM |
4375 | /* See target.h. */ |
4376 | ||
4377 | void | |
4378 | target_insn_history (int size, int flags) | |
4379 | { | |
4380 | struct target_ops *t; | |
4381 | ||
4382 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4383 | if (t->to_insn_history != NULL) | |
4384 | { | |
7a6c5609 | 4385 | t->to_insn_history (t, size, flags); |
67c86d06 MM |
4386 | return; |
4387 | } | |
4388 | ||
4389 | tcomplain (); | |
4390 | } | |
4391 | ||
4392 | /* See target.h. */ | |
4393 | ||
4394 | void | |
4395 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4396 | { | |
4397 | struct target_ops *t; | |
4398 | ||
4399 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4400 | if (t->to_insn_history_from != NULL) | |
4401 | { | |
9abc3ff3 | 4402 | t->to_insn_history_from (t, from, size, flags); |
67c86d06 MM |
4403 | return; |
4404 | } | |
4405 | ||
4406 | tcomplain (); | |
4407 | } | |
4408 | ||
4409 | /* See target.h. */ | |
4410 | ||
4411 | void | |
4412 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4413 | { | |
4414 | struct target_ops *t; | |
4415 | ||
4416 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4417 | if (t->to_insn_history_range != NULL) | |
4418 | { | |
4e99c6b7 | 4419 | t->to_insn_history_range (t, begin, end, flags); |
67c86d06 MM |
4420 | return; |
4421 | } | |
4422 | ||
4423 | tcomplain (); | |
4424 | } | |
4425 | ||
15984c13 MM |
4426 | /* See target.h. */ |
4427 | ||
4428 | void | |
4429 | target_call_history (int size, int flags) | |
4430 | { | |
4431 | struct target_ops *t; | |
4432 | ||
4433 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4434 | if (t->to_call_history != NULL) | |
4435 | { | |
5df2fcba | 4436 | t->to_call_history (t, size, flags); |
15984c13 MM |
4437 | return; |
4438 | } | |
4439 | ||
4440 | tcomplain (); | |
4441 | } | |
4442 | ||
4443 | /* See target.h. */ | |
4444 | ||
4445 | void | |
4446 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4447 | { | |
4448 | struct target_ops *t; | |
4449 | ||
4450 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4451 | if (t->to_call_history_from != NULL) | |
4452 | { | |
ec0aea04 | 4453 | t->to_call_history_from (t, begin, size, flags); |
15984c13 MM |
4454 | return; |
4455 | } | |
4456 | ||
4457 | tcomplain (); | |
4458 | } | |
4459 | ||
4460 | /* See target.h. */ | |
4461 | ||
4462 | void | |
4463 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4464 | { | |
4465 | struct target_ops *t; | |
4466 | ||
4467 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4468 | if (t->to_call_history_range != NULL) | |
4469 | { | |
f0d960ea | 4470 | t->to_call_history_range (t, begin, end, flags); |
15984c13 MM |
4471 | return; |
4472 | } | |
4473 | ||
4474 | tcomplain (); | |
4475 | } | |
4476 | ||
c906108c | 4477 | static void |
f32dbf8c | 4478 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4479 | { |
f32dbf8c | 4480 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4481 | |
96baa820 | 4482 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4483 | } |
4484 | ||
ea001bdc MM |
4485 | /* See target.h. */ |
4486 | ||
4487 | const struct frame_unwind * | |
4488 | target_get_unwinder (void) | |
4489 | { | |
4490 | struct target_ops *t; | |
4491 | ||
4492 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4493 | if (t->to_get_unwinder != NULL) | |
4494 | return t->to_get_unwinder; | |
4495 | ||
4496 | return NULL; | |
4497 | } | |
4498 | ||
4499 | /* See target.h. */ | |
4500 | ||
4501 | const struct frame_unwind * | |
4502 | target_get_tailcall_unwinder (void) | |
4503 | { | |
4504 | struct target_ops *t; | |
4505 | ||
4506 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4507 | if (t->to_get_tailcall_unwinder != NULL) | |
4508 | return t->to_get_tailcall_unwinder; | |
4509 | ||
4510 | return NULL; | |
4511 | } | |
4512 | ||
118e6252 MM |
4513 | /* See target.h. */ |
4514 | ||
4515 | CORE_ADDR | |
4516 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4517 | struct gdbarch *gdbarch) | |
4518 | { | |
4519 | for (; ops != NULL; ops = ops->beneath) | |
4520 | if (ops->to_decr_pc_after_break != NULL) | |
4521 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4522 | ||
4523 | return gdbarch_decr_pc_after_break (gdbarch); | |
4524 | } | |
4525 | ||
4526 | /* See target.h. */ | |
4527 | ||
4528 | CORE_ADDR | |
4529 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4530 | { | |
4531 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4532 | } | |
4533 | ||
c906108c | 4534 | static int |
961cb7b5 | 4535 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4536 | int write, struct mem_attrib *attrib, |
4537 | struct target_ops *target) | |
c906108c SS |
4538 | { |
4539 | int retval; | |
4540 | ||
c8e73a31 AC |
4541 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4542 | attrib, target); | |
c906108c | 4543 | |
96baa820 | 4544 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4545 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4546 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4547 | write ? "write" : "read", retval); |
c906108c | 4548 | |
c906108c SS |
4549 | if (retval > 0) |
4550 | { | |
4551 | int i; | |
4552 | ||
96baa820 | 4553 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4554 | for (i = 0; i < retval; i++) |
4555 | { | |
53b71562 | 4556 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4557 | { |
4558 | if (targetdebug < 2 && i > 0) | |
4559 | { | |
4560 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4561 | break; | |
4562 | } | |
4563 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4564 | } | |
2bc416ba | 4565 | |
96baa820 | 4566 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4567 | } |
4568 | } | |
4569 | ||
96baa820 | 4570 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4571 | |
4572 | return retval; | |
4573 | } | |
4574 | ||
4575 | static void | |
fba45db2 | 4576 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4577 | { |
4578 | debug_target.to_files_info (target); | |
4579 | ||
96baa820 | 4580 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4581 | } |
4582 | ||
4583 | static int | |
3db08215 | 4584 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4585 | struct bp_target_info *bp_tgt) |
c906108c SS |
4586 | { |
4587 | int retval; | |
4588 | ||
6b84065d | 4589 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4590 | |
96baa820 | 4591 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4592 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4593 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4594 | (unsigned long) retval); |
c906108c SS |
4595 | return retval; |
4596 | } | |
4597 | ||
4598 | static int | |
3db08215 | 4599 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4600 | struct bp_target_info *bp_tgt) |
c906108c SS |
4601 | { |
4602 | int retval; | |
4603 | ||
6b84065d | 4604 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4605 | |
96baa820 | 4606 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4607 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4608 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4609 | (unsigned long) retval); |
c906108c SS |
4610 | return retval; |
4611 | } | |
4612 | ||
ccaa32c7 | 4613 | static int |
5461485a TT |
4614 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4615 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4616 | { |
4617 | int retval; | |
4618 | ||
5461485a TT |
4619 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4620 | type, cnt, from_tty); | |
ccaa32c7 GS |
4621 | |
4622 | fprintf_unfiltered (gdb_stdlog, | |
4623 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4624 | (unsigned long) type, | |
4625 | (unsigned long) cnt, | |
4626 | (unsigned long) from_tty, | |
4627 | (unsigned long) retval); | |
4628 | return retval; | |
4629 | } | |
4630 | ||
e0d24f8d | 4631 | static int |
31568a15 TT |
4632 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4633 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4634 | { |
4635 | CORE_ADDR retval; | |
4636 | ||
31568a15 TT |
4637 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4638 | addr, len); | |
e0d24f8d WZ |
4639 | |
4640 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4641 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4642 | core_addr_to_string (addr), (unsigned long) len, | |
4643 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4644 | return retval; |
4645 | } | |
4646 | ||
0cf6dd15 | 4647 | static int |
c3a5ff89 TT |
4648 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4649 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4650 | struct expression *cond) |
4651 | { | |
4652 | int retval; | |
4653 | ||
c3a5ff89 TT |
4654 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4655 | addr, len, | |
3e43a32a | 4656 | rw, cond); |
0cf6dd15 TJB |
4657 | |
4658 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4659 | "target_can_accel_watchpoint_condition " |
4660 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4661 | core_addr_to_string (addr), len, rw, |
4662 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4663 | return retval; |
4664 | } | |
4665 | ||
ccaa32c7 | 4666 | static int |
6a109b6b | 4667 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4668 | { |
4669 | int retval; | |
4670 | ||
6a109b6b | 4671 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4672 | |
4673 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4674 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4675 | (unsigned long) retval); |
4676 | return retval; | |
4677 | } | |
4678 | ||
4aa7a7f5 JJ |
4679 | static int |
4680 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4681 | { |
4aa7a7f5 | 4682 | int retval; |
ccaa32c7 | 4683 | |
4aa7a7f5 | 4684 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4685 | |
4686 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4687 | "target_stopped_data_address ([%s]) = %ld\n", |
4688 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4689 | (unsigned long)retval); |
ccaa32c7 GS |
4690 | return retval; |
4691 | } | |
4692 | ||
5009afc5 AS |
4693 | static int |
4694 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4695 | CORE_ADDR addr, | |
4696 | CORE_ADDR start, int length) | |
4697 | { | |
4698 | int retval; | |
4699 | ||
4700 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4701 | start, length); | |
4702 | ||
4703 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4704 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4705 | core_addr_to_string (addr), core_addr_to_string (start), | |
4706 | length, retval); | |
5009afc5 AS |
4707 | return retval; |
4708 | } | |
4709 | ||
ccaa32c7 | 4710 | static int |
23a26771 TT |
4711 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4712 | struct gdbarch *gdbarch, | |
a6d9a66e | 4713 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4714 | { |
4715 | int retval; | |
4716 | ||
23a26771 TT |
4717 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4718 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4719 | |
4720 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4721 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4722 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4723 | (unsigned long) retval); |
4724 | return retval; | |
4725 | } | |
4726 | ||
4727 | static int | |
a64dc96c TT |
4728 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4729 | struct gdbarch *gdbarch, | |
a6d9a66e | 4730 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4731 | { |
4732 | int retval; | |
4733 | ||
a64dc96c TT |
4734 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4735 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4736 | |
4737 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4738 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4739 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4740 | (unsigned long) retval); |
4741 | return retval; | |
4742 | } | |
4743 | ||
4744 | static int | |
7bb99c53 TT |
4745 | debug_to_insert_watchpoint (struct target_ops *self, |
4746 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4747 | struct expression *cond) |
ccaa32c7 GS |
4748 | { |
4749 | int retval; | |
4750 | ||
7bb99c53 TT |
4751 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4752 | 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 | |
11b5219a TT |
4762 | debug_to_remove_watchpoint (struct target_ops *self, |
4763 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4764 | struct expression *cond) |
ccaa32c7 GS |
4765 | { |
4766 | int retval; | |
4767 | ||
11b5219a TT |
4768 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4769 | addr, len, type, cond); | |
ccaa32c7 GS |
4770 | |
4771 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4772 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4773 | core_addr_to_string (addr), len, type, | |
4774 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4775 | return retval; |
4776 | } | |
4777 | ||
c906108c | 4778 | static void |
c42bf286 | 4779 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4780 | { |
c42bf286 | 4781 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4782 | |
96baa820 | 4783 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4784 | } |
4785 | ||
4786 | static void | |
d2f640d4 | 4787 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4788 | { |
d2f640d4 | 4789 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4790 | |
96baa820 | 4791 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4792 | } |
4793 | ||
4794 | static void | |
2e1e1a19 | 4795 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4796 | { |
2e1e1a19 | 4797 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4798 | |
96baa820 | 4799 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4800 | } |
4801 | ||
4802 | static void | |
e3594fd1 | 4803 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4804 | { |
e3594fd1 | 4805 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4806 | |
96baa820 | 4807 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4808 | } |
4809 | ||
a790ad35 | 4810 | static void |
ae3bd431 | 4811 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4812 | { |
ae3bd431 | 4813 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4814 | |
4815 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4816 | } | |
4817 | ||
c906108c | 4818 | static void |
0a4f40a2 TT |
4819 | debug_to_terminal_info (struct target_ops *self, |
4820 | const char *arg, int from_tty) | |
c906108c | 4821 | { |
0a4f40a2 | 4822 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4823 | |
96baa820 | 4824 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4825 | from_tty); |
4826 | } | |
4827 | ||
c906108c | 4828 | static void |
71a9f134 | 4829 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4830 | { |
71a9f134 | 4831 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4832 | |
96baa820 | 4833 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4834 | } |
4835 | ||
c906108c | 4836 | static void |
2e97a79e | 4837 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4838 | { |
2e97a79e | 4839 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4840 | |
96baa820 | 4841 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4842 | ptid_get_pid (ptid)); |
c906108c SS |
4843 | } |
4844 | ||
77b06cd7 | 4845 | static int |
a863b201 | 4846 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4847 | { |
77b06cd7 TJB |
4848 | int retval; |
4849 | ||
a863b201 | 4850 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4851 | |
4852 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4853 | pid, retval); | |
c906108c | 4854 | |
77b06cd7 | 4855 | return retval; |
c906108c SS |
4856 | } |
4857 | ||
4858 | static int | |
973fc227 | 4859 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4860 | { |
c5aa993b | 4861 | int retval; |
c906108c | 4862 | |
973fc227 | 4863 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4864 | |
96baa820 | 4865 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4866 | pid, retval); |
c906108c SS |
4867 | |
4868 | return retval; | |
4869 | } | |
4870 | ||
77b06cd7 | 4871 | static int |
3ecc7da0 | 4872 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4873 | { |
77b06cd7 TJB |
4874 | int retval; |
4875 | ||
3ecc7da0 | 4876 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4877 | |
77b06cd7 TJB |
4878 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4879 | pid, retval); | |
4880 | ||
4881 | return retval; | |
c906108c SS |
4882 | } |
4883 | ||
4884 | static int | |
e98cf0cd | 4885 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4886 | { |
c5aa993b | 4887 | int retval; |
c906108c | 4888 | |
e98cf0cd | 4889 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4890 | |
96baa820 | 4891 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4892 | pid, retval); |
c906108c SS |
4893 | |
4894 | return retval; | |
4895 | } | |
4896 | ||
77b06cd7 | 4897 | static int |
ba025e51 | 4898 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4899 | { |
77b06cd7 TJB |
4900 | int retval; |
4901 | ||
ba025e51 | 4902 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4903 | |
77b06cd7 TJB |
4904 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4905 | pid, retval); | |
4906 | ||
4907 | return retval; | |
c906108c SS |
4908 | } |
4909 | ||
4910 | static int | |
758e29d2 | 4911 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4912 | { |
c5aa993b | 4913 | int retval; |
c906108c | 4914 | |
758e29d2 | 4915 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4916 | |
96baa820 | 4917 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4918 | pid, retval); |
c906108c SS |
4919 | |
4920 | return retval; | |
4921 | } | |
4922 | ||
c906108c | 4923 | static int |
d796e1d6 TT |
4924 | debug_to_has_exited (struct target_ops *self, |
4925 | int pid, int wait_status, int *exit_status) | |
c906108c | 4926 | { |
c5aa993b | 4927 | int has_exited; |
c906108c | 4928 | |
d796e1d6 TT |
4929 | has_exited = debug_target.to_has_exited (&debug_target, |
4930 | pid, wait_status, exit_status); | |
c906108c | 4931 | |
96baa820 | 4932 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4933 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4934 | |
4935 | return has_exited; | |
4936 | } | |
4937 | ||
c906108c | 4938 | static int |
da82bd6b | 4939 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4940 | { |
4941 | int retval; | |
4942 | ||
da82bd6b | 4943 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4944 | |
96baa820 | 4945 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4946 | |
4947 | return retval; | |
4948 | } | |
4949 | ||
c2250ad1 UW |
4950 | static struct gdbarch * |
4951 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4952 | { | |
4953 | struct gdbarch *retval; | |
4954 | ||
4955 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4956 | ||
3e43a32a MS |
4957 | fprintf_unfiltered (gdb_stdlog, |
4958 | "target_thread_architecture (%s) = %s [%s]\n", | |
4959 | target_pid_to_str (ptid), | |
4960 | host_address_to_string (retval), | |
c2250ad1 UW |
4961 | gdbarch_bfd_arch_info (retval)->printable_name); |
4962 | return retval; | |
4963 | } | |
4964 | ||
c906108c | 4965 | static void |
1eab8a48 | 4966 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4967 | { |
1eab8a48 | 4968 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4969 | |
94cc34af PA |
4970 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4971 | target_pid_to_str (ptid)); | |
c906108c SS |
4972 | } |
4973 | ||
96baa820 | 4974 | static void |
1aac633b | 4975 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4976 | struct ui_file *outbuf) |
96baa820 | 4977 | { |
1aac633b | 4978 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4979 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4980 | } | |
4981 | ||
c906108c | 4982 | static char * |
8dd27370 | 4983 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4984 | { |
c5aa993b | 4985 | char *exec_file; |
c906108c | 4986 | |
8dd27370 | 4987 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4988 | |
96baa820 | 4989 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4990 | pid, exec_file); |
c906108c SS |
4991 | |
4992 | return exec_file; | |
4993 | } | |
4994 | ||
c906108c | 4995 | static void |
fba45db2 | 4996 | setup_target_debug (void) |
c906108c SS |
4997 | { |
4998 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4999 | ||
5000 | current_target.to_open = debug_to_open; | |
c906108c | 5001 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 5002 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 5003 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
5004 | current_target.to_files_info = debug_to_files_info; |
5005 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
5006 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
5007 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
5008 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
5009 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
5010 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
5011 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
5012 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
5013 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
5014 | current_target.to_watchpoint_addr_within_range |
5015 | = debug_to_watchpoint_addr_within_range; | |
5016 | current_target.to_region_ok_for_hw_watchpoint | |
5017 | = debug_to_region_ok_for_hw_watchpoint; | |
5018 | current_target.to_can_accel_watchpoint_condition | |
5019 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
5020 | current_target.to_terminal_init = debug_to_terminal_init; |
5021 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
5022 | current_target.to_terminal_ours_for_output |
5023 | = debug_to_terminal_ours_for_output; | |
c906108c | 5024 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 5025 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 5026 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 5027 | current_target.to_load = debug_to_load; |
c906108c | 5028 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
5029 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
5030 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
5031 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
5032 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
5033 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
5034 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 5035 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 5036 | current_target.to_can_run = debug_to_can_run; |
c906108c | 5037 | current_target.to_stop = debug_to_stop; |
96baa820 | 5038 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 5039 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 5040 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 5041 | } |
c906108c | 5042 | \f |
c5aa993b JM |
5043 | |
5044 | static char targ_desc[] = | |
3e43a32a MS |
5045 | "Names of targets and files being debugged.\nShows the entire \ |
5046 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
5047 | core-file, and process, if any), as well as the symbol file name."; |
5048 | ||
a53f3625 TT |
5049 | static void |
5050 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
5051 | { | |
5052 | error (_("\"monitor\" command not supported by this target.")); | |
5053 | } | |
5054 | ||
96baa820 JM |
5055 | static void |
5056 | do_monitor_command (char *cmd, | |
5057 | int from_tty) | |
5058 | { | |
96baa820 JM |
5059 | target_rcmd (cmd, gdb_stdtarg); |
5060 | } | |
5061 | ||
87680a14 JB |
5062 | /* Print the name of each layers of our target stack. */ |
5063 | ||
5064 | static void | |
5065 | maintenance_print_target_stack (char *cmd, int from_tty) | |
5066 | { | |
5067 | struct target_ops *t; | |
5068 | ||
5069 | printf_filtered (_("The current target stack is:\n")); | |
5070 | ||
5071 | for (t = target_stack; t != NULL; t = t->beneath) | |
5072 | { | |
5073 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
5074 | } | |
5075 | } | |
5076 | ||
c6ebd6cf VP |
5077 | /* Controls if async mode is permitted. */ |
5078 | int target_async_permitted = 0; | |
5079 | ||
5080 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 5081 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
5082 | static int target_async_permitted_1 = 0; |
5083 | ||
5084 | static void | |
9401a810 PA |
5085 | set_target_async_command (char *args, int from_tty, |
5086 | struct cmd_list_element *c) | |
c6ebd6cf | 5087 | { |
c35b1492 | 5088 | if (have_live_inferiors ()) |
c6ebd6cf VP |
5089 | { |
5090 | target_async_permitted_1 = target_async_permitted; | |
5091 | error (_("Cannot change this setting while the inferior is running.")); | |
5092 | } | |
5093 | ||
5094 | target_async_permitted = target_async_permitted_1; | |
5095 | } | |
5096 | ||
5097 | static void | |
9401a810 PA |
5098 | show_target_async_command (struct ui_file *file, int from_tty, |
5099 | struct cmd_list_element *c, | |
5100 | const char *value) | |
c6ebd6cf | 5101 | { |
3e43a32a MS |
5102 | fprintf_filtered (file, |
5103 | _("Controlling the inferior in " | |
5104 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5105 | } |
5106 | ||
d914c394 SS |
5107 | /* Temporary copies of permission settings. */ |
5108 | ||
5109 | static int may_write_registers_1 = 1; | |
5110 | static int may_write_memory_1 = 1; | |
5111 | static int may_insert_breakpoints_1 = 1; | |
5112 | static int may_insert_tracepoints_1 = 1; | |
5113 | static int may_insert_fast_tracepoints_1 = 1; | |
5114 | static int may_stop_1 = 1; | |
5115 | ||
5116 | /* Make the user-set values match the real values again. */ | |
5117 | ||
5118 | void | |
5119 | update_target_permissions (void) | |
5120 | { | |
5121 | may_write_registers_1 = may_write_registers; | |
5122 | may_write_memory_1 = may_write_memory; | |
5123 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5124 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5125 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5126 | may_stop_1 = may_stop; | |
5127 | } | |
5128 | ||
5129 | /* The one function handles (most of) the permission flags in the same | |
5130 | way. */ | |
5131 | ||
5132 | static void | |
5133 | set_target_permissions (char *args, int from_tty, | |
5134 | struct cmd_list_element *c) | |
5135 | { | |
5136 | if (target_has_execution) | |
5137 | { | |
5138 | update_target_permissions (); | |
5139 | error (_("Cannot change this setting while the inferior is running.")); | |
5140 | } | |
5141 | ||
5142 | /* Make the real values match the user-changed values. */ | |
5143 | may_write_registers = may_write_registers_1; | |
5144 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5145 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5146 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5147 | may_stop = may_stop_1; | |
5148 | update_observer_mode (); | |
5149 | } | |
5150 | ||
5151 | /* Set memory write permission independently of observer mode. */ | |
5152 | ||
5153 | static void | |
5154 | set_write_memory_permission (char *args, int from_tty, | |
5155 | struct cmd_list_element *c) | |
5156 | { | |
5157 | /* Make the real values match the user-changed values. */ | |
5158 | may_write_memory = may_write_memory_1; | |
5159 | update_observer_mode (); | |
5160 | } | |
5161 | ||
5162 | ||
c906108c | 5163 | void |
fba45db2 | 5164 | initialize_targets (void) |
c906108c SS |
5165 | { |
5166 | init_dummy_target (); | |
5167 | push_target (&dummy_target); | |
5168 | ||
5169 | add_info ("target", target_info, targ_desc); | |
5170 | add_info ("files", target_info, targ_desc); | |
5171 | ||
ccce17b0 | 5172 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5173 | Set target debugging."), _("\ |
5174 | Show target debugging."), _("\ | |
333dabeb DJ |
5175 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5176 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5177 | command."), |
ccce17b0 YQ |
5178 | NULL, |
5179 | show_targetdebug, | |
5180 | &setdebuglist, &showdebuglist); | |
3a11626d | 5181 | |
2bc416ba | 5182 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5183 | &trust_readonly, _("\ |
5184 | Set mode for reading from readonly sections."), _("\ | |
5185 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5186 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5187 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5188 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5189 | NULL, |
920d2a44 | 5190 | show_trust_readonly, |
e707bbc2 | 5191 | &setlist, &showlist); |
96baa820 JM |
5192 | |
5193 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5194 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5195 | |
87680a14 JB |
5196 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5197 | _("Print the name of each layer of the internal target stack."), | |
5198 | &maintenanceprintlist); | |
5199 | ||
c6ebd6cf VP |
5200 | add_setshow_boolean_cmd ("target-async", no_class, |
5201 | &target_async_permitted_1, _("\ | |
5202 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5203 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5204 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5205 | set_target_async_command, |
5206 | show_target_async_command, | |
c6ebd6cf VP |
5207 | &setlist, |
5208 | &showlist); | |
5209 | ||
d914c394 SS |
5210 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5211 | &may_write_registers_1, _("\ | |
5212 | Set permission to write into registers."), _("\ | |
5213 | Show permission to write into registers."), _("\ | |
5214 | When this permission is on, GDB may write into the target's registers.\n\ | |
5215 | Otherwise, any sort of write attempt will result in an error."), | |
5216 | set_target_permissions, NULL, | |
5217 | &setlist, &showlist); | |
5218 | ||
5219 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5220 | &may_write_memory_1, _("\ | |
5221 | Set permission to write into target memory."), _("\ | |
5222 | Show permission to write into target memory."), _("\ | |
5223 | When this permission is on, GDB may write into the target's memory.\n\ | |
5224 | Otherwise, any sort of write attempt will result in an error."), | |
5225 | set_write_memory_permission, NULL, | |
5226 | &setlist, &showlist); | |
5227 | ||
5228 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5229 | &may_insert_breakpoints_1, _("\ | |
5230 | Set permission to insert breakpoints in the target."), _("\ | |
5231 | Show permission to insert breakpoints in the target."), _("\ | |
5232 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5233 | Otherwise, any sort of insertion attempt will result in an error."), | |
5234 | set_target_permissions, NULL, | |
5235 | &setlist, &showlist); | |
5236 | ||
5237 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5238 | &may_insert_tracepoints_1, _("\ | |
5239 | Set permission to insert tracepoints in the target."), _("\ | |
5240 | Show permission to insert tracepoints in the target."), _("\ | |
5241 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5242 | Otherwise, any sort of insertion attempt will result in an error."), | |
5243 | set_target_permissions, NULL, | |
5244 | &setlist, &showlist); | |
5245 | ||
5246 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5247 | &may_insert_fast_tracepoints_1, _("\ | |
5248 | Set permission to insert fast tracepoints in the target."), _("\ | |
5249 | Show permission to insert fast tracepoints in the target."), _("\ | |
5250 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5251 | Otherwise, any sort of insertion attempt will result in an error."), | |
5252 | set_target_permissions, NULL, | |
5253 | &setlist, &showlist); | |
5254 | ||
5255 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5256 | &may_stop_1, _("\ | |
5257 | Set permission to interrupt or signal the target."), _("\ | |
5258 | Show permission to interrupt or signal the target."), _("\ | |
5259 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5260 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5261 | set_target_permissions, NULL, | |
5262 | &setlist, &showlist); | |
c906108c | 5263 | } |