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" |
8de71aab | 47 | #include "auxv.h" |
c906108c | 48 | |
a14ed312 | 49 | static void target_info (char *, int); |
c906108c | 50 | |
0a4f40a2 | 51 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 52 | |
5009afc5 AS |
53 | static int default_watchpoint_addr_within_range (struct target_ops *, |
54 | CORE_ADDR, CORE_ADDR, int); | |
55 | ||
31568a15 TT |
56 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
57 | CORE_ADDR, int); | |
e0d24f8d | 58 | |
a53f3625 TT |
59 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
60 | ||
4229b31d TT |
61 | static ptid_t default_get_ada_task_ptid (struct target_ops *self, |
62 | long lwp, long tid); | |
63 | ||
098dba18 TT |
64 | static int default_follow_fork (struct target_ops *self, int follow_child, |
65 | int detach_fork); | |
66 | ||
8d657035 TT |
67 | static void default_mourn_inferior (struct target_ops *self); |
68 | ||
58a5184e TT |
69 | static int default_search_memory (struct target_ops *ops, |
70 | CORE_ADDR start_addr, | |
71 | ULONGEST search_space_len, | |
72 | const gdb_byte *pattern, | |
73 | ULONGEST pattern_len, | |
74 | CORE_ADDR *found_addrp); | |
75 | ||
c25c4a8b | 76 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 77 | |
a14ed312 | 78 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 79 | |
a14ed312 | 80 | static int return_zero (void); |
c906108c | 81 | |
a14ed312 | 82 | void target_ignore (void); |
c906108c | 83 | |
a14ed312 | 84 | static void target_command (char *, int); |
c906108c | 85 | |
a14ed312 | 86 | static struct target_ops *find_default_run_target (char *); |
c906108c | 87 | |
4ac248ca YQ |
88 | static target_xfer_partial_ftype default_xfer_partial; |
89 | ||
c2250ad1 UW |
90 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
91 | ptid_t ptid); | |
92 | ||
0b5a2719 TT |
93 | static int dummy_find_memory_regions (struct target_ops *self, |
94 | find_memory_region_ftype ignore1, | |
95 | void *ignore2); | |
96 | ||
16f796b1 TT |
97 | static char *dummy_make_corefile_notes (struct target_ops *self, |
98 | bfd *ignore1, int *ignore2); | |
99 | ||
770234d3 TT |
100 | static char *default_pid_to_str (struct target_ops *ops, ptid_t ptid); |
101 | ||
6b84065d TT |
102 | static int find_default_can_async_p (struct target_ops *ignore); |
103 | ||
104 | static int find_default_is_async_p (struct target_ops *ignore); | |
105 | ||
fe31bf5b TT |
106 | static enum exec_direction_kind default_execution_direction |
107 | (struct target_ops *self); | |
108 | ||
1101cb7b TT |
109 | #include "target-delegates.c" |
110 | ||
a14ed312 | 111 | static void init_dummy_target (void); |
c906108c | 112 | |
aa869812 AC |
113 | static struct target_ops debug_target; |
114 | ||
a14ed312 | 115 | static void debug_to_open (char *, int); |
c906108c | 116 | |
f32dbf8c MM |
117 | static void debug_to_prepare_to_store (struct target_ops *self, |
118 | struct regcache *); | |
c906108c | 119 | |
a14ed312 | 120 | static void debug_to_files_info (struct target_ops *); |
c906108c | 121 | |
3db08215 | 122 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 123 | struct bp_target_info *); |
c906108c | 124 | |
3db08215 | 125 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 126 | struct bp_target_info *); |
c906108c | 127 | |
5461485a TT |
128 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
129 | int, int, int); | |
ccaa32c7 | 130 | |
23a26771 TT |
131 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
132 | struct gdbarch *, | |
a6d9a66e | 133 | struct bp_target_info *); |
ccaa32c7 | 134 | |
a64dc96c TT |
135 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
136 | struct gdbarch *, | |
a6d9a66e | 137 | struct bp_target_info *); |
ccaa32c7 | 138 | |
7bb99c53 TT |
139 | static int debug_to_insert_watchpoint (struct target_ops *self, |
140 | CORE_ADDR, int, int, | |
0cf6dd15 | 141 | struct expression *); |
ccaa32c7 | 142 | |
11b5219a TT |
143 | static int debug_to_remove_watchpoint (struct target_ops *self, |
144 | CORE_ADDR, int, int, | |
0cf6dd15 | 145 | struct expression *); |
ccaa32c7 | 146 | |
4aa7a7f5 | 147 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 148 | |
5009afc5 AS |
149 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
150 | CORE_ADDR, CORE_ADDR, int); | |
151 | ||
31568a15 TT |
152 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
153 | CORE_ADDR, int); | |
e0d24f8d | 154 | |
c3a5ff89 TT |
155 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
156 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
157 | struct expression *); |
158 | ||
c42bf286 | 159 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 160 | |
d2f640d4 | 161 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 162 | |
2e1e1a19 | 163 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 164 | |
ae3bd431 | 165 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 166 | |
e3594fd1 | 167 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 168 | |
71a9f134 | 169 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 170 | |
da82bd6b | 171 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 172 | |
1eab8a48 | 173 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 174 | |
c906108c | 175 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 176 | array; the current index into the array; the allocated size of the |
c906108c SS |
177 | array. */ |
178 | struct target_ops **target_structs; | |
179 | unsigned target_struct_size; | |
c906108c SS |
180 | unsigned target_struct_allocsize; |
181 | #define DEFAULT_ALLOCSIZE 10 | |
182 | ||
183 | /* The initial current target, so that there is always a semi-valid | |
184 | current target. */ | |
185 | ||
186 | static struct target_ops dummy_target; | |
187 | ||
188 | /* Top of target stack. */ | |
189 | ||
258b763a | 190 | static struct target_ops *target_stack; |
c906108c SS |
191 | |
192 | /* The target structure we are currently using to talk to a process | |
193 | or file or whatever "inferior" we have. */ | |
194 | ||
195 | struct target_ops current_target; | |
196 | ||
197 | /* Command list for target. */ | |
198 | ||
199 | static struct cmd_list_element *targetlist = NULL; | |
200 | ||
cf7a04e8 DJ |
201 | /* Nonzero if we should trust readonly sections from the |
202 | executable when reading memory. */ | |
203 | ||
204 | static int trust_readonly = 0; | |
205 | ||
8defab1a DJ |
206 | /* Nonzero if we should show true memory content including |
207 | memory breakpoint inserted by gdb. */ | |
208 | ||
209 | static int show_memory_breakpoints = 0; | |
210 | ||
d914c394 SS |
211 | /* These globals control whether GDB attempts to perform these |
212 | operations; they are useful for targets that need to prevent | |
213 | inadvertant disruption, such as in non-stop mode. */ | |
214 | ||
215 | int may_write_registers = 1; | |
216 | ||
217 | int may_write_memory = 1; | |
218 | ||
219 | int may_insert_breakpoints = 1; | |
220 | ||
221 | int may_insert_tracepoints = 1; | |
222 | ||
223 | int may_insert_fast_tracepoints = 1; | |
224 | ||
225 | int may_stop = 1; | |
226 | ||
c906108c SS |
227 | /* Non-zero if we want to see trace of target level stuff. */ |
228 | ||
ccce17b0 | 229 | static unsigned int targetdebug = 0; |
920d2a44 AC |
230 | static void |
231 | show_targetdebug (struct ui_file *file, int from_tty, | |
232 | struct cmd_list_element *c, const char *value) | |
233 | { | |
234 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
235 | } | |
c906108c | 236 | |
a14ed312 | 237 | static void setup_target_debug (void); |
c906108c | 238 | |
c906108c SS |
239 | /* The user just typed 'target' without the name of a target. */ |
240 | ||
c906108c | 241 | static void |
fba45db2 | 242 | target_command (char *arg, int from_tty) |
c906108c SS |
243 | { |
244 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
245 | gdb_stdout); | |
246 | } | |
247 | ||
c35b1492 PA |
248 | /* Default target_has_* methods for process_stratum targets. */ |
249 | ||
250 | int | |
251 | default_child_has_all_memory (struct target_ops *ops) | |
252 | { | |
253 | /* If no inferior selected, then we can't read memory here. */ | |
254 | if (ptid_equal (inferior_ptid, null_ptid)) | |
255 | return 0; | |
256 | ||
257 | return 1; | |
258 | } | |
259 | ||
260 | int | |
261 | default_child_has_memory (struct target_ops *ops) | |
262 | { | |
263 | /* If no inferior selected, then we can't read memory here. */ | |
264 | if (ptid_equal (inferior_ptid, null_ptid)) | |
265 | return 0; | |
266 | ||
267 | return 1; | |
268 | } | |
269 | ||
270 | int | |
271 | default_child_has_stack (struct target_ops *ops) | |
272 | { | |
273 | /* If no inferior selected, there's no stack. */ | |
274 | if (ptid_equal (inferior_ptid, null_ptid)) | |
275 | return 0; | |
276 | ||
277 | return 1; | |
278 | } | |
279 | ||
280 | int | |
281 | default_child_has_registers (struct target_ops *ops) | |
282 | { | |
283 | /* Can't read registers from no inferior. */ | |
284 | if (ptid_equal (inferior_ptid, null_ptid)) | |
285 | return 0; | |
286 | ||
287 | return 1; | |
288 | } | |
289 | ||
290 | int | |
aeaec162 | 291 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
292 | { |
293 | /* If there's no thread selected, then we can't make it run through | |
294 | hoops. */ | |
aeaec162 | 295 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
296 | return 0; |
297 | ||
298 | return 1; | |
299 | } | |
300 | ||
301 | ||
302 | int | |
303 | target_has_all_memory_1 (void) | |
304 | { | |
305 | struct target_ops *t; | |
306 | ||
307 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
308 | if (t->to_has_all_memory (t)) | |
309 | return 1; | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | int | |
315 | target_has_memory_1 (void) | |
316 | { | |
317 | struct target_ops *t; | |
318 | ||
319 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
320 | if (t->to_has_memory (t)) | |
321 | return 1; | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | int | |
327 | target_has_stack_1 (void) | |
328 | { | |
329 | struct target_ops *t; | |
330 | ||
331 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
332 | if (t->to_has_stack (t)) | |
333 | return 1; | |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
338 | int | |
339 | target_has_registers_1 (void) | |
340 | { | |
341 | struct target_ops *t; | |
342 | ||
343 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
344 | if (t->to_has_registers (t)) | |
345 | return 1; | |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
350 | int | |
aeaec162 | 351 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
352 | { |
353 | struct target_ops *t; | |
354 | ||
355 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 356 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
357 | return 1; |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
aeaec162 TT |
362 | int |
363 | target_has_execution_current (void) | |
364 | { | |
365 | return target_has_execution_1 (inferior_ptid); | |
366 | } | |
367 | ||
c22a2b88 TT |
368 | /* Complete initialization of T. This ensures that various fields in |
369 | T are set, if needed by the target implementation. */ | |
c906108c SS |
370 | |
371 | void | |
c22a2b88 | 372 | complete_target_initialization (struct target_ops *t) |
c906108c | 373 | { |
0088c768 | 374 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
375 | if (t->to_xfer_partial == NULL) |
376 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 377 | |
c35b1492 PA |
378 | if (t->to_has_all_memory == NULL) |
379 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
380 | ||
381 | if (t->to_has_memory == NULL) | |
382 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
383 | ||
384 | if (t->to_has_stack == NULL) | |
385 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
386 | ||
387 | if (t->to_has_registers == NULL) | |
388 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
389 | ||
390 | if (t->to_has_execution == NULL) | |
aeaec162 | 391 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
392 | |
393 | install_delegators (t); | |
c22a2b88 TT |
394 | } |
395 | ||
396 | /* Add possible target architecture T to the list and add a new | |
397 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
398 | completer if not NULL. */ | |
399 | ||
400 | void | |
401 | add_target_with_completer (struct target_ops *t, | |
402 | completer_ftype *completer) | |
403 | { | |
404 | struct cmd_list_element *c; | |
405 | ||
406 | complete_target_initialization (t); | |
c35b1492 | 407 | |
c906108c SS |
408 | if (!target_structs) |
409 | { | |
410 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
411 | target_structs = (struct target_ops **) xmalloc | |
412 | (target_struct_allocsize * sizeof (*target_structs)); | |
413 | } | |
414 | if (target_struct_size >= target_struct_allocsize) | |
415 | { | |
416 | target_struct_allocsize *= 2; | |
417 | target_structs = (struct target_ops **) | |
c5aa993b JM |
418 | xrealloc ((char *) target_structs, |
419 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
420 | } |
421 | target_structs[target_struct_size++] = t; | |
c906108c SS |
422 | |
423 | if (targetlist == NULL) | |
1bedd215 AC |
424 | add_prefix_cmd ("target", class_run, target_command, _("\ |
425 | Connect to a target machine or process.\n\ | |
c906108c SS |
426 | The first argument is the type or protocol of the target machine.\n\ |
427 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
428 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 429 | `help target ' followed by the protocol name."), |
c906108c | 430 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
431 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
432 | &targetlist); | |
433 | if (completer != NULL) | |
434 | set_cmd_completer (c, completer); | |
435 | } | |
436 | ||
437 | /* Add a possible target architecture to the list. */ | |
438 | ||
439 | void | |
440 | add_target (struct target_ops *t) | |
441 | { | |
442 | add_target_with_completer (t, NULL); | |
c906108c SS |
443 | } |
444 | ||
b48d48eb MM |
445 | /* See target.h. */ |
446 | ||
447 | void | |
448 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
449 | { | |
450 | struct cmd_list_element *c; | |
451 | char *alt; | |
452 | ||
453 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
454 | see PR cli/15104. */ | |
455 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
456 | alt = xstrprintf ("target %s", t->to_shortname); | |
457 | deprecate_cmd (c, alt); | |
458 | } | |
459 | ||
c906108c SS |
460 | /* Stub functions */ |
461 | ||
462 | void | |
fba45db2 | 463 | target_ignore (void) |
c906108c SS |
464 | { |
465 | } | |
466 | ||
7d85a9c0 JB |
467 | void |
468 | target_kill (void) | |
469 | { | |
423a4807 TT |
470 | if (targetdebug) |
471 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
7d85a9c0 | 472 | |
423a4807 | 473 | current_target.to_kill (¤t_target); |
7d85a9c0 JB |
474 | } |
475 | ||
11cf8741 JM |
476 | void |
477 | target_load (char *arg, int from_tty) | |
478 | { | |
4e5d721f | 479 | target_dcache_invalidate (); |
71a9f134 | 480 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
481 | } |
482 | ||
947b8855 PA |
483 | void |
484 | target_create_inferior (char *exec_file, char *args, | |
485 | char **env, int from_tty) | |
136d6dae VP |
486 | { |
487 | struct target_ops *t; | |
5d502164 | 488 | |
136d6dae VP |
489 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
490 | { | |
491 | if (t->to_create_inferior != NULL) | |
492 | { | |
493 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
494 | if (targetdebug) |
495 | fprintf_unfiltered (gdb_stdlog, | |
496 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
497 | exec_file, args, from_tty); | |
136d6dae VP |
498 | return; |
499 | } | |
500 | } | |
501 | ||
502 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 503 | _("could not find a target to create inferior")); |
136d6dae VP |
504 | } |
505 | ||
d9d2d8b6 PA |
506 | void |
507 | target_terminal_inferior (void) | |
508 | { | |
509 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 510 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
511 | this point the target is not async yet. However, if sync_execution |
512 | is not set, we know it will become async prior to resume. */ | |
513 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
514 | return; |
515 | ||
516 | /* If GDB is resuming the inferior in the foreground, install | |
517 | inferior's terminal modes. */ | |
d2f640d4 | 518 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 519 | } |
136d6dae | 520 | |
c906108c | 521 | static int |
fba45db2 KB |
522 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
523 | struct target_ops *t) | |
c906108c | 524 | { |
c378eb4e MS |
525 | errno = EIO; /* Can't read/write this location. */ |
526 | return 0; /* No bytes handled. */ | |
c906108c SS |
527 | } |
528 | ||
529 | static void | |
fba45db2 | 530 | tcomplain (void) |
c906108c | 531 | { |
8a3fe4f8 | 532 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
533 | current_target.to_shortname); |
534 | } | |
535 | ||
536 | void | |
fba45db2 | 537 | noprocess (void) |
c906108c | 538 | { |
8a3fe4f8 | 539 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
540 | } |
541 | ||
c906108c | 542 | static void |
0a4f40a2 | 543 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 544 | { |
a3f17187 | 545 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
546 | } |
547 | ||
0ef643c8 JB |
548 | /* A default implementation for the to_get_ada_task_ptid target method. |
549 | ||
550 | This function builds the PTID by using both LWP and TID as part of | |
551 | the PTID lwp and tid elements. The pid used is the pid of the | |
552 | inferior_ptid. */ | |
553 | ||
2c0b251b | 554 | static ptid_t |
1e6b91a4 | 555 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
556 | { |
557 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
558 | } | |
559 | ||
32231432 | 560 | static enum exec_direction_kind |
4c612759 | 561 | default_execution_direction (struct target_ops *self) |
32231432 PA |
562 | { |
563 | if (!target_can_execute_reverse) | |
564 | return EXEC_FORWARD; | |
565 | else if (!target_can_async_p ()) | |
566 | return EXEC_FORWARD; | |
567 | else | |
568 | gdb_assert_not_reached ("\ | |
569 | to_execution_direction must be implemented for reverse async"); | |
570 | } | |
571 | ||
7998dfc3 AC |
572 | /* Go through the target stack from top to bottom, copying over zero |
573 | entries in current_target, then filling in still empty entries. In | |
574 | effect, we are doing class inheritance through the pushed target | |
575 | vectors. | |
576 | ||
577 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
578 | is currently implemented, is that it discards any knowledge of | |
579 | which target an inherited method originally belonged to. | |
580 | Consequently, new new target methods should instead explicitly and | |
581 | locally search the target stack for the target that can handle the | |
582 | request. */ | |
c906108c SS |
583 | |
584 | static void | |
7998dfc3 | 585 | update_current_target (void) |
c906108c | 586 | { |
7998dfc3 AC |
587 | struct target_ops *t; |
588 | ||
08d8bcd7 | 589 | /* First, reset current's contents. */ |
7998dfc3 AC |
590 | memset (¤t_target, 0, sizeof (current_target)); |
591 | ||
1101cb7b TT |
592 | /* Install the delegators. */ |
593 | install_delegators (¤t_target); | |
594 | ||
7998dfc3 AC |
595 | #define INHERIT(FIELD, TARGET) \ |
596 | if (!current_target.FIELD) \ | |
597 | current_target.FIELD = (TARGET)->FIELD | |
598 | ||
599 | for (t = target_stack; t; t = t->beneath) | |
600 | { | |
601 | INHERIT (to_shortname, t); | |
602 | INHERIT (to_longname, t); | |
603 | INHERIT (to_doc, t); | |
b52323fa UW |
604 | /* Do not inherit to_open. */ |
605 | /* Do not inherit to_close. */ | |
136d6dae | 606 | /* Do not inherit to_attach. */ |
bebd3233 | 607 | /* Do not inherit to_post_attach. */ |
dc177b7a | 608 | INHERIT (to_attach_no_wait, t); |
136d6dae | 609 | /* Do not inherit to_detach. */ |
597320e7 | 610 | /* Do not inherit to_disconnect. */ |
28439f5e | 611 | /* Do not inherit to_resume. */ |
117de6a9 | 612 | /* Do not inherit to_wait. */ |
28439f5e PA |
613 | /* Do not inherit to_fetch_registers. */ |
614 | /* Do not inherit to_store_registers. */ | |
6c628163 | 615 | /* Do not inherit to_prepare_to_store. */ |
c8e73a31 | 616 | INHERIT (deprecated_xfer_memory, t); |
f86e59b2 | 617 | /* Do not inherit to_files_info. */ |
3db08215 MM |
618 | /* Do not inherit to_insert_breakpoint. */ |
619 | /* Do not inherit to_remove_breakpoint. */ | |
52b51d06 | 620 | /* Do not inherit to_can_use_hw_breakpoint. */ |
61b371f9 | 621 | /* Do not inherit to_insert_hw_breakpoint. */ |
418dabac | 622 | /* Do not inherit to_remove_hw_breakpoint. */ |
f1310107 | 623 | /* Do not inherit to_ranged_break_num_registers. */ |
016facd4 | 624 | /* Do not inherit to_insert_watchpoint. */ |
61dd109f | 625 | /* Do not inherit to_remove_watchpoint. */ |
9c06b0b4 TJB |
626 | /* Do not inherit to_insert_mask_watchpoint. */ |
627 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 628 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 629 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 630 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 631 | /* Do not inherit to_stopped_by_watchpoint. */ |
65f160a9 | 632 | /* Do not inherit to_watchpoint_addr_within_range. */ |
d03655e4 | 633 | /* Do not inherit to_region_ok_for_hw_watchpoint. */ |
77cdffe9 | 634 | /* Do not inherit to_can_accel_watchpoint_condition. */ |
9c06b0b4 | 635 | /* Do not inherit to_masked_watch_num_registers. */ |
0343661d | 636 | /* Do not inherit to_terminal_init. */ |
ddeaacc9 | 637 | /* Do not inherit to_terminal_inferior. */ |
74fcbef9 | 638 | /* Do not inherit to_terminal_ours_for_output. */ |
e4a733f1 | 639 | /* Do not inherit to_terminal_ours. */ |
c6ea8f79 | 640 | /* Do not inherit to_terminal_save_ours. */ |
e19e919f | 641 | /* Do not inherit to_terminal_info. */ |
7d85a9c0 | 642 | /* Do not inherit to_kill. */ |
7634da87 | 643 | /* Do not inherit to_load. */ |
136d6dae | 644 | /* Do no inherit to_create_inferior. */ |
340ba4bf | 645 | /* Do not inherit to_post_startup_inferior. */ |
5958ebeb | 646 | /* Do not inherit to_insert_fork_catchpoint. */ |
e1a21fb7 | 647 | /* Do not inherit to_remove_fork_catchpoint. */ |
7e18a8dc | 648 | /* Do not inherit to_insert_vfork_catchpoint. */ |
95c3375e | 649 | /* Do not inherit to_remove_vfork_catchpoint. */ |
ee057212 | 650 | /* Do not inherit to_follow_fork. */ |
62f64d7a | 651 | /* Do not inherit to_insert_exec_catchpoint. */ |
cda0f38c | 652 | /* Do not inherit to_remove_exec_catchpoint. */ |
6a9fa051 | 653 | /* Do not inherit to_set_syscall_catchpoint. */ |
0db88c1d | 654 | /* Do not inherit to_has_exited. */ |
82892036 | 655 | /* Do not inherit to_mourn_inferior. */ |
e88ef65c | 656 | /* Do not inherit to_can_run. */ |
2455069d | 657 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 658 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
659 | /* Do not inherit to_thread_alive. */ |
660 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 661 | /* Do not inherit to_pid_to_str. */ |
4a7e6dda | 662 | /* Do not inherit to_extra_thread_info. */ |
825828fc | 663 | /* Do not inherit to_thread_name. */ |
46ee7e8d | 664 | /* Do not inherit to_stop. */ |
4b8a223f | 665 | /* Do not inherit to_xfer_partial. */ |
a53f3625 | 666 | /* Do not inherit to_rcmd. */ |
830ca330 | 667 | /* Do not inherit to_pid_to_exec_file. */ |
d9cb0195 | 668 | /* Do not inherit to_log_command. */ |
7998dfc3 | 669 | INHERIT (to_stratum, t); |
c378eb4e MS |
670 | /* Do not inherit to_has_all_memory. */ |
671 | /* Do not inherit to_has_memory. */ | |
672 | /* Do not inherit to_has_stack. */ | |
673 | /* Do not inherit to_has_registers. */ | |
674 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 675 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
676 | /* Do not inherit to_can_async_p. */ |
677 | /* Do not inherit to_is_async_p. */ | |
678 | /* Do not inherit to_async. */ | |
0b5a2719 | 679 | /* Do not inherit to_find_memory_regions. */ |
16f796b1 | 680 | /* Do not inherit to_make_corefile_notes. */ |
3dbafbbb | 681 | /* Do not inherit to_get_bookmark. */ |
9bb9d61d | 682 | /* Do not inherit to_goto_bookmark. */ |
117de6a9 | 683 | /* Do not inherit to_get_thread_local_address. */ |
53e1cfc7 | 684 | /* Do not inherit to_can_execute_reverse. */ |
fe31bf5b | 685 | /* Do not inherit to_execution_direction. */ |
43eba180 | 686 | /* Do not inherit to_thread_architecture. */ |
424163ea | 687 | /* Do not inherit to_read_description. */ |
4229b31d | 688 | /* Do not inherit to_get_ada_task_ptid. */ |
08388c79 | 689 | /* Do not inherit to_search_memory. */ |
a7304748 | 690 | /* Do not inherit to_supports_multi_process. */ |
aab1b22d | 691 | /* Do not inherit to_supports_enable_disable_tracepoint. */ |
9409d39e | 692 | /* Do not inherit to_supports_string_tracing. */ |
5536135b | 693 | /* Do not inherit to_trace_init. */ |
9a980a22 | 694 | /* Do not inherit to_download_tracepoint. */ |
719acc4a | 695 | /* Do not inherit to_can_download_tracepoint. */ |
94eb98b9 | 696 | /* Do not inherit to_download_trace_state_variable. */ |
151f70f1 | 697 | /* Do not inherit to_enable_tracepoint. */ |
05c41993 | 698 | /* Do not inherit to_disable_tracepoint. */ |
86dd181d | 699 | /* Do not inherit to_trace_set_readonly_regions. */ |
25da2e80 | 700 | /* Do not inherit to_trace_start. */ |
4072d4ff | 701 | /* Do not inherit to_get_trace_status. */ |
6fea14cd | 702 | /* Do not inherit to_get_tracepoint_status. */ |
e51c07ea | 703 | /* Do not inherit to_trace_stop. */ |
afc94e66 | 704 | /* Do not inherit to_trace_find. */ |
959bcd0b | 705 | /* Do not inherit to_get_trace_state_variable_value. */ |
a2e6c147 | 706 | /* Do not inherit to_save_trace_data. */ |
1e949b00 | 707 | /* Do not inherit to_upload_tracepoints. */ |
08120467 | 708 | /* Do not inherit to_upload_trace_state_variables. */ |
ace92e7d | 709 | /* Do not inherit to_get_raw_trace_data. */ |
9249843f | 710 | /* Do not inherit to_get_min_fast_tracepoint_insn_len. */ |
0bcfeddf | 711 | /* Do not inherit to_set_disconnected_tracing. */ |
8d526939 | 712 | /* Do not inherit to_set_circular_trace_buffer. */ |
91df8d1d | 713 | /* Do not inherit to_set_trace_buffer_size. */ |
8586ccaa | 714 | /* Do not inherit to_set_trace_notes. */ |
22bcceee | 715 | /* Do not inherit to_get_tib_address. */ |
dcd6917f | 716 | /* Do not inherit to_set_permissions. */ |
4c3e4425 | 717 | /* Do not inherit to_static_tracepoint_marker_at. */ |
d6522a22 | 718 | /* Do not inherit to_static_tracepoint_markers_by_strid. */ |
92155eeb | 719 | /* Do not inherit to_traceframe_info. */ |
d9db5b21 | 720 | /* Do not inherit to_use_agent. */ |
9a7d8b48 | 721 | /* Do not inherit to_can_use_agent. */ |
0de91722 | 722 | /* Do not inherit to_augmented_libraries_svr4_read. */ |
7998dfc3 | 723 | INHERIT (to_magic, t); |
ccfde2a0 TT |
724 | /* Do not inherit |
725 | to_supports_evaluation_of_breakpoint_conditions. */ | |
843f59ed | 726 | /* Do not inherit to_can_run_breakpoint_commands. */ |
fd79ecee | 727 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
728 | /* Do not inherit to_flash_erase. */ |
729 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
730 | } |
731 | #undef INHERIT | |
732 | ||
733 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
734 | it. Some entries are defaulted to a method that print an error, |
735 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
736 | |
737 | #define de_fault(field, value) \ | |
7998dfc3 AC |
738 | if (!current_target.field) \ |
739 | current_target.field = value | |
0d06e24b | 740 | |
2bc416ba DJ |
741 | de_fault (to_open, |
742 | (void (*) (char *, int)) | |
0d06e24b | 743 | tcomplain); |
2bc416ba | 744 | de_fault (to_close, |
de90e03d | 745 | (void (*) (struct target_ops *)) |
0d06e24b | 746 | target_ignore); |
2bc416ba | 747 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
748 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
749 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 750 | nomemory); |
32231432 | 751 | |
c906108c | 752 | #undef de_fault |
c906108c | 753 | |
7998dfc3 AC |
754 | /* Finally, position the target-stack beneath the squashed |
755 | "current_target". That way code looking for a non-inherited | |
756 | target method can quickly and simply find it. */ | |
757 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
758 | |
759 | if (targetdebug) | |
760 | setup_target_debug (); | |
c906108c SS |
761 | } |
762 | ||
763 | /* Push a new target type into the stack of the existing target accessors, | |
764 | possibly superseding some of the existing accessors. | |
765 | ||
c906108c SS |
766 | Rather than allow an empty stack, we always have the dummy target at |
767 | the bottom stratum, so we can call the function vectors without | |
768 | checking them. */ | |
769 | ||
b26a4dcb | 770 | void |
fba45db2 | 771 | push_target (struct target_ops *t) |
c906108c | 772 | { |
258b763a | 773 | struct target_ops **cur; |
c906108c SS |
774 | |
775 | /* Check magic number. If wrong, it probably means someone changed | |
776 | the struct definition, but not all the places that initialize one. */ | |
777 | if (t->to_magic != OPS_MAGIC) | |
778 | { | |
c5aa993b JM |
779 | fprintf_unfiltered (gdb_stderr, |
780 | "Magic number of %s target struct wrong\n", | |
781 | t->to_shortname); | |
3e43a32a MS |
782 | internal_error (__FILE__, __LINE__, |
783 | _("failed internal consistency check")); | |
c906108c SS |
784 | } |
785 | ||
258b763a AC |
786 | /* Find the proper stratum to install this target in. */ |
787 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 788 | { |
258b763a | 789 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
790 | break; |
791 | } | |
792 | ||
258b763a | 793 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 794 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
795 | targets to CUR, and not just those at this stratum level. */ |
796 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
797 | { | |
798 | /* There's already something at this stratum level. Close it, | |
799 | and un-hook it from the stack. */ | |
800 | struct target_ops *tmp = (*cur); | |
5d502164 | 801 | |
258b763a AC |
802 | (*cur) = (*cur)->beneath; |
803 | tmp->beneath = NULL; | |
460014f5 | 804 | target_close (tmp); |
258b763a | 805 | } |
c906108c SS |
806 | |
807 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
808 | t->beneath = (*cur); |
809 | (*cur) = t; | |
c906108c SS |
810 | |
811 | update_current_target (); | |
c906108c SS |
812 | } |
813 | ||
2bc416ba | 814 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
815 | Return how many times it was removed (0 or 1). */ |
816 | ||
817 | int | |
fba45db2 | 818 | unpush_target (struct target_ops *t) |
c906108c | 819 | { |
258b763a AC |
820 | struct target_ops **cur; |
821 | struct target_ops *tmp; | |
c906108c | 822 | |
c8d104ad PA |
823 | if (t->to_stratum == dummy_stratum) |
824 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 825 | _("Attempt to unpush the dummy target")); |
c8d104ad | 826 | |
c906108c | 827 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 828 | can only occur once in the target stack. */ |
c906108c | 829 | |
258b763a AC |
830 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
831 | { | |
832 | if ((*cur) == t) | |
833 | break; | |
834 | } | |
c906108c | 835 | |
305436e0 PA |
836 | /* If we don't find target_ops, quit. Only open targets should be |
837 | closed. */ | |
258b763a | 838 | if ((*cur) == NULL) |
305436e0 | 839 | return 0; |
5269965e | 840 | |
c378eb4e | 841 | /* Unchain the target. */ |
258b763a AC |
842 | tmp = (*cur); |
843 | (*cur) = (*cur)->beneath; | |
844 | tmp->beneath = NULL; | |
c906108c SS |
845 | |
846 | update_current_target (); | |
c906108c | 847 | |
305436e0 PA |
848 | /* Finally close the target. Note we do this after unchaining, so |
849 | any target method calls from within the target_close | |
850 | implementation don't end up in T anymore. */ | |
460014f5 | 851 | target_close (t); |
305436e0 | 852 | |
c906108c SS |
853 | return 1; |
854 | } | |
855 | ||
aa76d38d | 856 | void |
460014f5 | 857 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 858 | { |
87ab71f0 | 859 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 860 | { |
aa76d38d PA |
861 | if (!unpush_target (target_stack)) |
862 | { | |
863 | fprintf_unfiltered (gdb_stderr, | |
864 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 865 | target_stack->to_shortname); |
aa76d38d PA |
866 | internal_error (__FILE__, __LINE__, |
867 | _("failed internal consistency check")); | |
868 | break; | |
869 | } | |
870 | } | |
871 | } | |
872 | ||
87ab71f0 | 873 | void |
460014f5 | 874 | pop_all_targets (void) |
87ab71f0 | 875 | { |
460014f5 | 876 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
877 | } |
878 | ||
c0edd9ed JK |
879 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
880 | ||
881 | int | |
882 | target_is_pushed (struct target_ops *t) | |
883 | { | |
884 | struct target_ops **cur; | |
885 | ||
886 | /* Check magic number. If wrong, it probably means someone changed | |
887 | the struct definition, but not all the places that initialize one. */ | |
888 | if (t->to_magic != OPS_MAGIC) | |
889 | { | |
890 | fprintf_unfiltered (gdb_stderr, | |
891 | "Magic number of %s target struct wrong\n", | |
892 | t->to_shortname); | |
3e43a32a MS |
893 | internal_error (__FILE__, __LINE__, |
894 | _("failed internal consistency check")); | |
c0edd9ed JK |
895 | } |
896 | ||
897 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
898 | if (*cur == t) | |
899 | return 1; | |
900 | ||
901 | return 0; | |
902 | } | |
903 | ||
72f5cf0e | 904 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
905 | current thread's thread-local storage with offset OFFSET. */ |
906 | CORE_ADDR | |
907 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
908 | { | |
909 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
910 | struct target_ops *target; |
911 | ||
912 | for (target = current_target.beneath; | |
913 | target != NULL; | |
914 | target = target->beneath) | |
915 | { | |
916 | if (target->to_get_thread_local_address != NULL) | |
917 | break; | |
918 | } | |
9e35dae4 | 919 | |
117de6a9 | 920 | if (target != NULL |
f5656ead | 921 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
922 | { |
923 | ptid_t ptid = inferior_ptid; | |
924 | volatile struct gdb_exception ex; | |
925 | ||
926 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
927 | { | |
928 | CORE_ADDR lm_addr; | |
929 | ||
930 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 931 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
932 | objfile); |
933 | /* If it's 0, throw the appropriate exception. */ | |
934 | if (lm_addr == 0) | |
935 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
936 | _("TLS load module not found")); | |
937 | ||
3e43a32a MS |
938 | addr = target->to_get_thread_local_address (target, ptid, |
939 | lm_addr, offset); | |
9e35dae4 DJ |
940 | } |
941 | /* If an error occurred, print TLS related messages here. Otherwise, | |
942 | throw the error to some higher catcher. */ | |
943 | if (ex.reason < 0) | |
944 | { | |
945 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
946 | ||
947 | switch (ex.error) | |
948 | { | |
949 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
950 | error (_("Cannot find thread-local variables " |
951 | "in this thread library.")); | |
9e35dae4 DJ |
952 | break; |
953 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
954 | if (objfile_is_library) | |
955 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 956 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
957 | else |
958 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 959 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
960 | break; |
961 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
962 | if (objfile_is_library) | |
963 | error (_("The inferior has not yet allocated storage for" | |
964 | " thread-local variables in\n" | |
965 | "the shared library `%s'\n" | |
966 | "for %s"), | |
4262abfb | 967 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
968 | else |
969 | error (_("The inferior has not yet allocated storage for" | |
970 | " thread-local variables in\n" | |
971 | "the executable `%s'\n" | |
972 | "for %s"), | |
4262abfb | 973 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
974 | break; |
975 | case TLS_GENERIC_ERROR: | |
976 | if (objfile_is_library) | |
977 | error (_("Cannot find thread-local storage for %s, " | |
978 | "shared library %s:\n%s"), | |
979 | target_pid_to_str (ptid), | |
4262abfb | 980 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
981 | else |
982 | error (_("Cannot find thread-local storage for %s, " | |
983 | "executable file %s:\n%s"), | |
984 | target_pid_to_str (ptid), | |
4262abfb | 985 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
986 | break; |
987 | default: | |
988 | throw_exception (ex); | |
989 | break; | |
990 | } | |
991 | } | |
992 | } | |
993 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
994 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
995 | else | |
996 | error (_("Cannot find thread-local variables on this target")); | |
997 | ||
998 | return addr; | |
999 | } | |
1000 | ||
6be7b56e | 1001 | const char * |
9b409511 | 1002 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1003 | { |
1004 | #define CASE(X) case X: return #X | |
1005 | switch (err) | |
1006 | { | |
1007 | CASE(TARGET_XFER_E_IO); | |
1008 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1009 | default: | |
1010 | return "<unknown>"; | |
1011 | } | |
1012 | #undef CASE | |
1013 | }; | |
1014 | ||
1015 | ||
c906108c SS |
1016 | #undef MIN |
1017 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1018 | ||
1019 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1020 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1021 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1022 | is responsible for freeing it. Return the number of bytes successfully | |
1023 | read. */ | |
1024 | ||
1025 | int | |
fba45db2 | 1026 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1027 | { |
c2e8b827 | 1028 | int tlen, offset, i; |
1b0ba102 | 1029 | gdb_byte buf[4]; |
c906108c SS |
1030 | int errcode = 0; |
1031 | char *buffer; | |
1032 | int buffer_allocated; | |
1033 | char *bufptr; | |
1034 | unsigned int nbytes_read = 0; | |
1035 | ||
6217bf3e MS |
1036 | gdb_assert (string); |
1037 | ||
c906108c SS |
1038 | /* Small for testing. */ |
1039 | buffer_allocated = 4; | |
1040 | buffer = xmalloc (buffer_allocated); | |
1041 | bufptr = buffer; | |
1042 | ||
c906108c SS |
1043 | while (len > 0) |
1044 | { | |
1045 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1046 | offset = memaddr & 3; | |
1047 | ||
1b0ba102 | 1048 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1049 | if (errcode != 0) |
1050 | { | |
1051 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1052 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1053 | a single byte. */ |
1054 | tlen = 1; | |
1055 | offset = 0; | |
b8eb5af0 | 1056 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1057 | if (errcode != 0) |
1058 | goto done; | |
1059 | } | |
1060 | ||
1061 | if (bufptr - buffer + tlen > buffer_allocated) | |
1062 | { | |
1063 | unsigned int bytes; | |
5d502164 | 1064 | |
c906108c SS |
1065 | bytes = bufptr - buffer; |
1066 | buffer_allocated *= 2; | |
1067 | buffer = xrealloc (buffer, buffer_allocated); | |
1068 | bufptr = buffer + bytes; | |
1069 | } | |
1070 | ||
1071 | for (i = 0; i < tlen; i++) | |
1072 | { | |
1073 | *bufptr++ = buf[i + offset]; | |
1074 | if (buf[i + offset] == '\000') | |
1075 | { | |
1076 | nbytes_read += i + 1; | |
1077 | goto done; | |
1078 | } | |
1079 | } | |
1080 | ||
1081 | memaddr += tlen; | |
1082 | len -= tlen; | |
1083 | nbytes_read += tlen; | |
1084 | } | |
c5aa993b | 1085 | done: |
6217bf3e | 1086 | *string = buffer; |
c906108c SS |
1087 | if (errnop != NULL) |
1088 | *errnop = errcode; | |
c906108c SS |
1089 | return nbytes_read; |
1090 | } | |
1091 | ||
07b82ea5 PA |
1092 | struct target_section_table * |
1093 | target_get_section_table (struct target_ops *target) | |
1094 | { | |
07b82ea5 PA |
1095 | if (targetdebug) |
1096 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1097 | ||
7e35c012 | 1098 | return (*target->to_get_section_table) (target); |
07b82ea5 PA |
1099 | } |
1100 | ||
8db32d44 | 1101 | /* Find a section containing ADDR. */ |
07b82ea5 | 1102 | |
0542c86d | 1103 | struct target_section * |
8db32d44 AC |
1104 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1105 | { | |
07b82ea5 | 1106 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1107 | struct target_section *secp; |
07b82ea5 PA |
1108 | |
1109 | if (table == NULL) | |
1110 | return NULL; | |
1111 | ||
1112 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1113 | { |
1114 | if (addr >= secp->addr && addr < secp->endaddr) | |
1115 | return secp; | |
1116 | } | |
1117 | return NULL; | |
1118 | } | |
1119 | ||
e6e4e701 PA |
1120 | /* Read memory from the live target, even if currently inspecting a |
1121 | traceframe. The return is the same as that of target_read. */ | |
1122 | ||
9b409511 | 1123 | static enum target_xfer_status |
e6e4e701 | 1124 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1125 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1126 | ULONGEST *xfered_len) | |
e6e4e701 | 1127 | { |
9b409511 | 1128 | enum target_xfer_status ret; |
e6e4e701 PA |
1129 | struct cleanup *cleanup; |
1130 | ||
1131 | /* Switch momentarily out of tfind mode so to access live memory. | |
1132 | Note that this must not clear global state, such as the frame | |
1133 | cache, which must still remain valid for the previous traceframe. | |
1134 | We may be _building_ the frame cache at this point. */ | |
1135 | cleanup = make_cleanup_restore_traceframe_number (); | |
1136 | set_traceframe_number (-1); | |
1137 | ||
9b409511 YQ |
1138 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1139 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1140 | |
1141 | do_cleanups (cleanup); | |
1142 | return ret; | |
1143 | } | |
1144 | ||
1145 | /* Using the set of read-only target sections of OPS, read live | |
1146 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1147 | top-most target again. |
1148 | ||
1149 | For interface/parameters/return description see target.h, | |
1150 | to_xfer_partial. */ | |
e6e4e701 | 1151 | |
9b409511 | 1152 | static enum target_xfer_status |
e6e4e701 PA |
1153 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1154 | enum target_object object, | |
1155 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1156 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1157 | { |
1158 | struct target_section *secp; | |
1159 | struct target_section_table *table; | |
1160 | ||
1161 | secp = target_section_by_addr (ops, memaddr); | |
1162 | if (secp != NULL | |
2b2848e2 DE |
1163 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1164 | secp->the_bfd_section) | |
e6e4e701 PA |
1165 | & SEC_READONLY)) |
1166 | { | |
1167 | struct target_section *p; | |
1168 | ULONGEST memend = memaddr + len; | |
1169 | ||
1170 | table = target_get_section_table (ops); | |
1171 | ||
1172 | for (p = table->sections; p < table->sections_end; p++) | |
1173 | { | |
1174 | if (memaddr >= p->addr) | |
1175 | { | |
1176 | if (memend <= p->endaddr) | |
1177 | { | |
1178 | /* Entire transfer is within this section. */ | |
1179 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1180 | readbuf, len, xfered_len); |
e6e4e701 PA |
1181 | } |
1182 | else if (memaddr >= p->endaddr) | |
1183 | { | |
1184 | /* This section ends before the transfer starts. */ | |
1185 | continue; | |
1186 | } | |
1187 | else | |
1188 | { | |
1189 | /* This section overlaps the transfer. Just do half. */ | |
1190 | len = p->endaddr - memaddr; | |
1191 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1192 | readbuf, len, xfered_len); |
e6e4e701 PA |
1193 | } |
1194 | } | |
1195 | } | |
1196 | } | |
1197 | ||
9b409511 | 1198 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1199 | } |
1200 | ||
9f713294 YQ |
1201 | /* Read memory from more than one valid target. A core file, for |
1202 | instance, could have some of memory but delegate other bits to | |
1203 | the target below it. So, we must manually try all targets. */ | |
1204 | ||
9b409511 | 1205 | static enum target_xfer_status |
17fde6d0 | 1206 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1207 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1208 | ULONGEST *xfered_len) | |
9f713294 | 1209 | { |
9b409511 | 1210 | enum target_xfer_status res; |
9f713294 YQ |
1211 | |
1212 | do | |
1213 | { | |
1214 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1215 | readbuf, writebuf, memaddr, len, |
1216 | xfered_len); | |
1217 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1218 | break; |
1219 | ||
633785ff MM |
1220 | /* Stop if the target reports that the memory is not available. */ |
1221 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1222 | break; | |
1223 | ||
9f713294 YQ |
1224 | /* We want to continue past core files to executables, but not |
1225 | past a running target's memory. */ | |
1226 | if (ops->to_has_all_memory (ops)) | |
1227 | break; | |
1228 | ||
1229 | ops = ops->beneath; | |
1230 | } | |
1231 | while (ops != NULL); | |
1232 | ||
1233 | return res; | |
1234 | } | |
1235 | ||
7f79c47e DE |
1236 | /* Perform a partial memory transfer. |
1237 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1238 | |
9b409511 | 1239 | static enum target_xfer_status |
f0ba3972 | 1240 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1241 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1242 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1243 | { |
9b409511 | 1244 | enum target_xfer_status res; |
cf7a04e8 DJ |
1245 | int reg_len; |
1246 | struct mem_region *region; | |
4e5d721f | 1247 | struct inferior *inf; |
cf7a04e8 | 1248 | |
07b82ea5 PA |
1249 | /* For accesses to unmapped overlay sections, read directly from |
1250 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1251 | if (readbuf != NULL && overlay_debugging) | |
1252 | { | |
1253 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1254 | |
07b82ea5 PA |
1255 | if (pc_in_unmapped_range (memaddr, section)) |
1256 | { | |
1257 | struct target_section_table *table | |
1258 | = target_get_section_table (ops); | |
1259 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1260 | |
07b82ea5 PA |
1261 | memaddr = overlay_mapped_address (memaddr, section); |
1262 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1263 | memaddr, len, xfered_len, |
07b82ea5 PA |
1264 | table->sections, |
1265 | table->sections_end, | |
1266 | section_name); | |
1267 | } | |
1268 | } | |
1269 | ||
1270 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1271 | if (readbuf != NULL && trust_readonly) |
1272 | { | |
0542c86d | 1273 | struct target_section *secp; |
07b82ea5 | 1274 | struct target_section_table *table; |
cf7a04e8 DJ |
1275 | |
1276 | secp = target_section_by_addr (ops, memaddr); | |
1277 | if (secp != NULL | |
2b2848e2 DE |
1278 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1279 | secp->the_bfd_section) | |
cf7a04e8 | 1280 | & SEC_READONLY)) |
07b82ea5 PA |
1281 | { |
1282 | table = target_get_section_table (ops); | |
1283 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1284 | memaddr, len, xfered_len, |
07b82ea5 PA |
1285 | table->sections, |
1286 | table->sections_end, | |
1287 | NULL); | |
1288 | } | |
98646950 UW |
1289 | } |
1290 | ||
e6e4e701 PA |
1291 | /* If reading unavailable memory in the context of traceframes, and |
1292 | this address falls within a read-only section, fallback to | |
1293 | reading from live memory. */ | |
1294 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1295 | { | |
1296 | VEC(mem_range_s) *available; | |
1297 | ||
1298 | /* If we fail to get the set of available memory, then the | |
1299 | target does not support querying traceframe info, and so we | |
1300 | attempt reading from the traceframe anyway (assuming the | |
1301 | target implements the old QTro packet then). */ | |
1302 | if (traceframe_available_memory (&available, memaddr, len)) | |
1303 | { | |
1304 | struct cleanup *old_chain; | |
1305 | ||
1306 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1307 | ||
1308 | if (VEC_empty (mem_range_s, available) | |
1309 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1310 | { | |
1311 | /* Don't read into the traceframe's available | |
1312 | memory. */ | |
1313 | if (!VEC_empty (mem_range_s, available)) | |
1314 | { | |
1315 | LONGEST oldlen = len; | |
1316 | ||
1317 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1318 | gdb_assert (len <= oldlen); | |
1319 | } | |
1320 | ||
1321 | do_cleanups (old_chain); | |
1322 | ||
1323 | /* This goes through the topmost target again. */ | |
1324 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1325 | readbuf, memaddr, |
1326 | len, xfered_len); | |
1327 | if (res == TARGET_XFER_OK) | |
1328 | return TARGET_XFER_OK; | |
1329 | else | |
1330 | { | |
1331 | /* No use trying further, we know some memory starting | |
1332 | at MEMADDR isn't available. */ | |
1333 | *xfered_len = len; | |
1334 | return TARGET_XFER_E_UNAVAILABLE; | |
1335 | } | |
e6e4e701 PA |
1336 | } |
1337 | ||
1338 | /* Don't try to read more than how much is available, in | |
1339 | case the target implements the deprecated QTro packet to | |
1340 | cater for older GDBs (the target's knowledge of read-only | |
1341 | sections may be outdated by now). */ | |
1342 | len = VEC_index (mem_range_s, available, 0)->length; | |
1343 | ||
1344 | do_cleanups (old_chain); | |
1345 | } | |
1346 | } | |
1347 | ||
cf7a04e8 DJ |
1348 | /* Try GDB's internal data cache. */ |
1349 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1350 | /* region->hi == 0 means there's no upper bound. */ |
1351 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1352 | reg_len = len; |
1353 | else | |
1354 | reg_len = region->hi - memaddr; | |
1355 | ||
1356 | switch (region->attrib.mode) | |
1357 | { | |
1358 | case MEM_RO: | |
1359 | if (writebuf != NULL) | |
2ed4b548 | 1360 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1361 | break; |
1362 | ||
1363 | case MEM_WO: | |
1364 | if (readbuf != NULL) | |
2ed4b548 | 1365 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1366 | break; |
a76d924d DJ |
1367 | |
1368 | case MEM_FLASH: | |
1369 | /* We only support writing to flash during "load" for now. */ | |
1370 | if (writebuf != NULL) | |
1371 | error (_("Writing to flash memory forbidden in this context")); | |
1372 | break; | |
4b5752d0 VP |
1373 | |
1374 | case MEM_NONE: | |
2ed4b548 | 1375 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1376 | } |
1377 | ||
6c95b8df PA |
1378 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1379 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1380 | else | |
1381 | inf = NULL; | |
4e5d721f DE |
1382 | |
1383 | if (inf != NULL | |
2f4d8875 PA |
1384 | /* The dcache reads whole cache lines; that doesn't play well |
1385 | with reading from a trace buffer, because reading outside of | |
1386 | the collected memory range fails. */ | |
1387 | && get_traceframe_number () == -1 | |
4e5d721f | 1388 | && (region->attrib.cache |
29453a14 YQ |
1389 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1390 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1391 | { |
2a2f9fe4 | 1392 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1393 | int l; |
2a2f9fe4 | 1394 | |
cf7a04e8 | 1395 | if (readbuf != NULL) |
9b409511 | 1396 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1397 | else |
1398 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1399 | correctness dcache_xfer_memory should take readbuf and | |
1400 | writebuf. */ | |
9b409511 | 1401 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1402 | reg_len, 1); |
9b409511 YQ |
1403 | if (l <= 0) |
1404 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1405 | else |
9b409511 YQ |
1406 | { |
1407 | *xfered_len = (ULONGEST) l; | |
1408 | return TARGET_XFER_OK; | |
1409 | } | |
cf7a04e8 DJ |
1410 | } |
1411 | ||
1412 | /* If none of those methods found the memory we wanted, fall back | |
1413 | to a target partial transfer. Normally a single call to | |
1414 | to_xfer_partial is enough; if it doesn't recognize an object | |
1415 | it will call the to_xfer_partial of the next target down. | |
1416 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1417 | object which can be read from more than one valid target. |
1418 | A core file, for instance, could have some of memory but | |
1419 | delegate other bits to the target below it. So, we must | |
1420 | manually try all targets. */ | |
1421 | ||
1422 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1423 | xfered_len); | |
cf7a04e8 | 1424 | |
41dcd03f DE |
1425 | /* Make sure the cache gets updated no matter what - if we are writing |
1426 | to the stack. Even if this write is not tagged as such, we still need | |
1427 | to update the cache. */ | |
1428 | ||
9b409511 | 1429 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1430 | && inf != NULL |
1431 | && writebuf != NULL | |
f2de9785 | 1432 | && target_dcache_init_p () |
41dcd03f | 1433 | && !region->attrib.cache |
29453a14 YQ |
1434 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1435 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1436 | { |
f2de9785 | 1437 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1438 | |
9b409511 | 1439 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1440 | } |
1441 | ||
cf7a04e8 DJ |
1442 | /* If we still haven't got anything, return the last error. We |
1443 | give up. */ | |
1444 | return res; | |
0779438d AC |
1445 | } |
1446 | ||
f0ba3972 PA |
1447 | /* Perform a partial memory transfer. For docs see target.h, |
1448 | to_xfer_partial. */ | |
1449 | ||
9b409511 | 1450 | static enum target_xfer_status |
f0ba3972 | 1451 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1452 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1453 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1454 | { |
9b409511 | 1455 | enum target_xfer_status res; |
f0ba3972 PA |
1456 | |
1457 | /* Zero length requests are ok and require no work. */ | |
1458 | if (len == 0) | |
9b409511 | 1459 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1460 | |
1461 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1462 | breakpoint insns, thus hiding out from higher layers whether | |
1463 | there are software breakpoints inserted in the code stream. */ | |
1464 | if (readbuf != NULL) | |
1465 | { | |
9b409511 YQ |
1466 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1467 | xfered_len); | |
f0ba3972 | 1468 | |
9b409511 | 1469 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1470 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1471 | } | |
1472 | else | |
1473 | { | |
1474 | void *buf; | |
1475 | struct cleanup *old_chain; | |
1476 | ||
67c059c2 AB |
1477 | /* A large write request is likely to be partially satisfied |
1478 | by memory_xfer_partial_1. We will continually malloc | |
1479 | and free a copy of the entire write request for breakpoint | |
1480 | shadow handling even though we only end up writing a small | |
1481 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1482 | len = min (4096, len); | |
1483 | ||
f0ba3972 PA |
1484 | buf = xmalloc (len); |
1485 | old_chain = make_cleanup (xfree, buf); | |
1486 | memcpy (buf, writebuf, len); | |
1487 | ||
1488 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1489 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1490 | xfered_len); | |
f0ba3972 PA |
1491 | |
1492 | do_cleanups (old_chain); | |
1493 | } | |
1494 | ||
1495 | return res; | |
1496 | } | |
1497 | ||
8defab1a DJ |
1498 | static void |
1499 | restore_show_memory_breakpoints (void *arg) | |
1500 | { | |
1501 | show_memory_breakpoints = (uintptr_t) arg; | |
1502 | } | |
1503 | ||
1504 | struct cleanup * | |
1505 | make_show_memory_breakpoints_cleanup (int show) | |
1506 | { | |
1507 | int current = show_memory_breakpoints; | |
8defab1a | 1508 | |
5d502164 | 1509 | show_memory_breakpoints = show; |
8defab1a DJ |
1510 | return make_cleanup (restore_show_memory_breakpoints, |
1511 | (void *) (uintptr_t) current); | |
1512 | } | |
1513 | ||
7f79c47e DE |
1514 | /* For docs see target.h, to_xfer_partial. */ |
1515 | ||
9b409511 | 1516 | enum target_xfer_status |
27394598 AC |
1517 | target_xfer_partial (struct target_ops *ops, |
1518 | enum target_object object, const char *annex, | |
4ac248ca | 1519 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1520 | ULONGEST offset, ULONGEST len, |
1521 | ULONGEST *xfered_len) | |
27394598 | 1522 | { |
9b409511 | 1523 | enum target_xfer_status retval; |
27394598 AC |
1524 | |
1525 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1526 | |
ce6d0892 YQ |
1527 | /* Transfer is done when LEN is zero. */ |
1528 | if (len == 0) | |
9b409511 | 1529 | return TARGET_XFER_EOF; |
ce6d0892 | 1530 | |
d914c394 SS |
1531 | if (writebuf && !may_write_memory) |
1532 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1533 | core_addr_to_string_nz (offset), plongest (len)); | |
1534 | ||
9b409511 YQ |
1535 | *xfered_len = 0; |
1536 | ||
cf7a04e8 DJ |
1537 | /* If this is a memory transfer, let the memory-specific code |
1538 | have a look at it instead. Memory transfers are more | |
1539 | complicated. */ | |
29453a14 YQ |
1540 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1541 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1542 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1543 | writebuf, offset, len, xfered_len); |
9f713294 | 1544 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1545 | { |
9f713294 | 1546 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1547 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1548 | xfered_len); | |
cf7a04e8 | 1549 | } |
9f713294 YQ |
1550 | else |
1551 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1552 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1553 | |
27394598 AC |
1554 | if (targetdebug) |
1555 | { | |
1556 | const unsigned char *myaddr = NULL; | |
1557 | ||
1558 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1559 | "%s:target_xfer_partial " |
9b409511 | 1560 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1561 | ops->to_shortname, |
1562 | (int) object, | |
1563 | (annex ? annex : "(null)"), | |
53b71562 JB |
1564 | host_address_to_string (readbuf), |
1565 | host_address_to_string (writebuf), | |
0b1553bc | 1566 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1567 | pulongest (len), retval, |
1568 | pulongest (*xfered_len)); | |
27394598 AC |
1569 | |
1570 | if (readbuf) | |
1571 | myaddr = readbuf; | |
1572 | if (writebuf) | |
1573 | myaddr = writebuf; | |
9b409511 | 1574 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1575 | { |
1576 | int i; | |
2bc416ba | 1577 | |
27394598 | 1578 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1579 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1580 | { |
53b71562 | 1581 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1582 | { |
1583 | if (targetdebug < 2 && i > 0) | |
1584 | { | |
1585 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1586 | break; | |
1587 | } | |
1588 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1589 | } | |
2bc416ba | 1590 | |
27394598 AC |
1591 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1592 | } | |
1593 | } | |
2bc416ba | 1594 | |
27394598 AC |
1595 | fputc_unfiltered ('\n', gdb_stdlog); |
1596 | } | |
9b409511 YQ |
1597 | |
1598 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1599 | properly. Do assertion after printing debug messages, so that we | |
1600 | can find more clues on assertion failure from debugging messages. */ | |
1601 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1602 | gdb_assert (*xfered_len > 0); | |
1603 | ||
27394598 AC |
1604 | return retval; |
1605 | } | |
1606 | ||
578d3588 PA |
1607 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1608 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1609 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1610 | |
1611 | If an error occurs, no guarantee is made about the contents of the data at | |
1612 | MYADDR. In particular, the caller should not depend upon partial reads | |
1613 | filling the buffer with good data. There is no way for the caller to know | |
1614 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1615 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1616 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1617 | |
1618 | int | |
1b162304 | 1619 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1620 | { |
c35b1492 PA |
1621 | /* Dispatch to the topmost target, not the flattened current_target. |
1622 | Memory accesses check target->to_has_(all_)memory, and the | |
1623 | flattened target doesn't inherit those. */ | |
1624 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1625 | myaddr, memaddr, len) == len) |
1626 | return 0; | |
0779438d | 1627 | else |
578d3588 | 1628 | return TARGET_XFER_E_IO; |
c906108c SS |
1629 | } |
1630 | ||
aee4bf85 PA |
1631 | /* Like target_read_memory, but specify explicitly that this is a read |
1632 | from the target's raw memory. That is, this read bypasses the | |
1633 | dcache, breakpoint shadowing, etc. */ | |
1634 | ||
1635 | int | |
1636 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1637 | { | |
1638 | /* See comment in target_read_memory about why the request starts at | |
1639 | current_target.beneath. */ | |
1640 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1641 | myaddr, memaddr, len) == len) | |
1642 | return 0; | |
1643 | else | |
1644 | return TARGET_XFER_E_IO; | |
1645 | } | |
1646 | ||
4e5d721f DE |
1647 | /* Like target_read_memory, but specify explicitly that this is a read from |
1648 | the target's stack. This may trigger different cache behavior. */ | |
1649 | ||
1650 | int | |
45aa4659 | 1651 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1652 | { |
aee4bf85 PA |
1653 | /* See comment in target_read_memory about why the request starts at |
1654 | current_target.beneath. */ | |
4e5d721f DE |
1655 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1656 | myaddr, memaddr, len) == len) | |
1657 | return 0; | |
1658 | else | |
578d3588 | 1659 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1660 | } |
1661 | ||
29453a14 YQ |
1662 | /* Like target_read_memory, but specify explicitly that this is a read from |
1663 | the target's code. This may trigger different cache behavior. */ | |
1664 | ||
1665 | int | |
1666 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1667 | { | |
aee4bf85 PA |
1668 | /* See comment in target_read_memory about why the request starts at |
1669 | current_target.beneath. */ | |
29453a14 YQ |
1670 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1671 | myaddr, memaddr, len) == len) | |
1672 | return 0; | |
1673 | else | |
1674 | return TARGET_XFER_E_IO; | |
1675 | } | |
1676 | ||
7f79c47e | 1677 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1678 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1679 | error occurs. If an error occurs, no guarantee is made about how |
1680 | much data got written. Callers that can deal with partial writes | |
1681 | should call target_write. */ | |
7f79c47e | 1682 | |
c906108c | 1683 | int |
45aa4659 | 1684 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1685 | { |
aee4bf85 PA |
1686 | /* See comment in target_read_memory about why the request starts at |
1687 | current_target.beneath. */ | |
c35b1492 | 1688 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1689 | myaddr, memaddr, len) == len) |
1690 | return 0; | |
0779438d | 1691 | else |
578d3588 | 1692 | return TARGET_XFER_E_IO; |
c906108c | 1693 | } |
c5aa993b | 1694 | |
f0ba3972 | 1695 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1696 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1697 | if any error occurs. If an error occurs, no guarantee is made |
1698 | about how much data got written. Callers that can deal with | |
1699 | partial writes should call target_write. */ | |
f0ba3972 PA |
1700 | |
1701 | int | |
45aa4659 | 1702 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1703 | { |
aee4bf85 PA |
1704 | /* See comment in target_read_memory about why the request starts at |
1705 | current_target.beneath. */ | |
f0ba3972 PA |
1706 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1707 | myaddr, memaddr, len) == len) | |
1708 | return 0; | |
1709 | else | |
578d3588 | 1710 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1711 | } |
1712 | ||
fd79ecee DJ |
1713 | /* Fetch the target's memory map. */ |
1714 | ||
1715 | VEC(mem_region_s) * | |
1716 | target_memory_map (void) | |
1717 | { | |
1718 | VEC(mem_region_s) *result; | |
1719 | struct mem_region *last_one, *this_one; | |
1720 | int ix; | |
1721 | struct target_ops *t; | |
1722 | ||
1723 | if (targetdebug) | |
1724 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1725 | ||
6b2c5a57 | 1726 | result = current_target.to_memory_map (¤t_target); |
fd79ecee DJ |
1727 | if (result == NULL) |
1728 | return NULL; | |
1729 | ||
1730 | qsort (VEC_address (mem_region_s, result), | |
1731 | VEC_length (mem_region_s, result), | |
1732 | sizeof (struct mem_region), mem_region_cmp); | |
1733 | ||
1734 | /* Check that regions do not overlap. Simultaneously assign | |
1735 | a numbering for the "mem" commands to use to refer to | |
1736 | each region. */ | |
1737 | last_one = NULL; | |
1738 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1739 | { | |
1740 | this_one->number = ix; | |
1741 | ||
1742 | if (last_one && last_one->hi > this_one->lo) | |
1743 | { | |
1744 | warning (_("Overlapping regions in memory map: ignoring")); | |
1745 | VEC_free (mem_region_s, result); | |
1746 | return NULL; | |
1747 | } | |
1748 | last_one = this_one; | |
1749 | } | |
1750 | ||
1751 | return result; | |
1752 | } | |
1753 | ||
a76d924d DJ |
1754 | void |
1755 | target_flash_erase (ULONGEST address, LONGEST length) | |
1756 | { | |
e8a6c6ac TT |
1757 | if (targetdebug) |
1758 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1759 | hex_string (address), phex (length, 0)); | |
1760 | current_target.to_flash_erase (¤t_target, address, length); | |
a76d924d DJ |
1761 | } |
1762 | ||
1763 | void | |
1764 | target_flash_done (void) | |
1765 | { | |
f6fb2925 TT |
1766 | if (targetdebug) |
1767 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1768 | current_target.to_flash_done (¤t_target); | |
a76d924d DJ |
1769 | } |
1770 | ||
920d2a44 AC |
1771 | static void |
1772 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1773 | struct cmd_list_element *c, const char *value) | |
1774 | { | |
3e43a32a MS |
1775 | fprintf_filtered (file, |
1776 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1777 | value); |
1778 | } | |
3a11626d | 1779 | |
1e3ff5ad AC |
1780 | /* More generic transfers. */ |
1781 | ||
9b409511 | 1782 | static enum target_xfer_status |
8aa91c1e | 1783 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1784 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
1785 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
1786 | ULONGEST *xfered_len) | |
0088c768 AC |
1787 | { |
1788 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1789 | && ops->deprecated_xfer_memory != NULL) |
1790 | /* If available, fall back to the target's | |
1791 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1792 | { |
4b8a223f | 1793 | int xfered = -1; |
5d502164 | 1794 | |
0088c768 | 1795 | errno = 0; |
4b8a223f AC |
1796 | if (writebuf != NULL) |
1797 | { | |
1798 | void *buffer = xmalloc (len); | |
1799 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1800 | |
4b8a223f | 1801 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1802 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1803 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1804 | do_cleanups (cleanup); |
1805 | } | |
1806 | if (readbuf != NULL) | |
244e85c8 MS |
1807 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1808 | 0/*read*/, NULL, ops); | |
0088c768 | 1809 | if (xfered > 0) |
9b409511 YQ |
1810 | { |
1811 | *xfered_len = (ULONGEST) xfered; | |
1812 | return TARGET_XFER_E_IO; | |
1813 | } | |
0088c768 | 1814 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
1815 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1816 | ERRNO as one indication of an error. */ | |
9b409511 | 1817 | return TARGET_XFER_EOF; |
0088c768 | 1818 | else |
9b409511 | 1819 | return TARGET_XFER_E_IO; |
0088c768 | 1820 | } |
0088c768 | 1821 | else |
6b84065d TT |
1822 | { |
1823 | gdb_assert (ops->beneath != NULL); | |
1824 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1825 | readbuf, writebuf, offset, len, | |
1826 | xfered_len); | |
1827 | } | |
0088c768 AC |
1828 | } |
1829 | ||
7f79c47e | 1830 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1831 | |
9b409511 | 1832 | static enum target_xfer_status |
1e3ff5ad AC |
1833 | target_read_partial (struct target_ops *ops, |
1834 | enum target_object object, | |
1b0ba102 | 1835 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1836 | ULONGEST offset, ULONGEST len, |
1837 | ULONGEST *xfered_len) | |
1e3ff5ad | 1838 | { |
9b409511 YQ |
1839 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1840 | xfered_len); | |
1e3ff5ad AC |
1841 | } |
1842 | ||
8a55ffb0 | 1843 | static enum target_xfer_status |
1e3ff5ad AC |
1844 | target_write_partial (struct target_ops *ops, |
1845 | enum target_object object, | |
1b0ba102 | 1846 | const char *annex, const gdb_byte *buf, |
9b409511 | 1847 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1848 | { |
9b409511 YQ |
1849 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1850 | xfered_len); | |
1e3ff5ad AC |
1851 | } |
1852 | ||
1853 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1854 | |
1855 | /* For docs on target_read see target.h. */ | |
1856 | ||
1e3ff5ad AC |
1857 | LONGEST |
1858 | target_read (struct target_ops *ops, | |
1859 | enum target_object object, | |
1b0ba102 | 1860 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1861 | ULONGEST offset, LONGEST len) |
1862 | { | |
1863 | LONGEST xfered = 0; | |
5d502164 | 1864 | |
1e3ff5ad AC |
1865 | while (xfered < len) |
1866 | { | |
9b409511 YQ |
1867 | ULONGEST xfered_len; |
1868 | enum target_xfer_status status; | |
1869 | ||
1870 | status = target_read_partial (ops, object, annex, | |
1871 | (gdb_byte *) buf + xfered, | |
1872 | offset + xfered, len - xfered, | |
1873 | &xfered_len); | |
5d502164 | 1874 | |
1e3ff5ad | 1875 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1876 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1877 | return xfered; |
9b409511 YQ |
1878 | else if (status == TARGET_XFER_OK) |
1879 | { | |
1880 | xfered += xfered_len; | |
1881 | QUIT; | |
1882 | } | |
1883 | else | |
0088c768 | 1884 | return -1; |
9b409511 | 1885 | |
1e3ff5ad AC |
1886 | } |
1887 | return len; | |
1888 | } | |
1889 | ||
f1a507a1 JB |
1890 | /* Assuming that the entire [begin, end) range of memory cannot be |
1891 | read, try to read whatever subrange is possible to read. | |
1892 | ||
1893 | The function returns, in RESULT, either zero or one memory block. | |
1894 | If there's a readable subrange at the beginning, it is completely | |
1895 | read and returned. Any further readable subrange will not be read. | |
1896 | Otherwise, if there's a readable subrange at the end, it will be | |
1897 | completely read and returned. Any readable subranges before it | |
1898 | (obviously, not starting at the beginning), will be ignored. In | |
1899 | other cases -- either no readable subrange, or readable subrange(s) | |
1900 | that is neither at the beginning, or end, nothing is returned. | |
1901 | ||
1902 | The purpose of this function is to handle a read across a boundary | |
1903 | of accessible memory in a case when memory map is not available. | |
1904 | The above restrictions are fine for this case, but will give | |
1905 | incorrect results if the memory is 'patchy'. However, supporting | |
1906 | 'patchy' memory would require trying to read every single byte, | |
1907 | and it seems unacceptable solution. Explicit memory map is | |
1908 | recommended for this case -- and target_read_memory_robust will | |
1909 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1910 | |
1911 | static void | |
3e43a32a MS |
1912 | read_whatever_is_readable (struct target_ops *ops, |
1913 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1914 | VEC(memory_read_result_s) **result) |
d5086790 | 1915 | { |
f1a507a1 | 1916 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1917 | ULONGEST current_begin = begin; |
1918 | ULONGEST current_end = end; | |
1919 | int forward; | |
1920 | memory_read_result_s r; | |
9b409511 | 1921 | ULONGEST xfered_len; |
8dedea02 VP |
1922 | |
1923 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1924 | if (end - begin <= 1) | |
13b3fd9b MS |
1925 | { |
1926 | xfree (buf); | |
1927 | return; | |
1928 | } | |
8dedea02 VP |
1929 | |
1930 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1931 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1932 | at the boundary of accessible region. */ |
1933 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 1934 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1935 | { |
1936 | forward = 1; | |
1937 | ++current_begin; | |
1938 | } | |
1939 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1940 | buf + (end-begin) - 1, end - 1, 1, |
1941 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
1942 | { |
1943 | forward = 0; | |
1944 | --current_end; | |
1945 | } | |
1946 | else | |
1947 | { | |
13b3fd9b | 1948 | xfree (buf); |
8dedea02 VP |
1949 | return; |
1950 | } | |
1951 | ||
1952 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1953 | found to be not readable as a whole. | |
1954 | ||
1955 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1956 | so there's no point trying further. */ | |
1957 | while (current_end - current_begin > 1) | |
1958 | { | |
1959 | ULONGEST first_half_begin, first_half_end; | |
1960 | ULONGEST second_half_begin, second_half_end; | |
1961 | LONGEST xfer; | |
8dedea02 | 1962 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 1963 | |
8dedea02 VP |
1964 | if (forward) |
1965 | { | |
1966 | first_half_begin = current_begin; | |
1967 | first_half_end = middle; | |
1968 | second_half_begin = middle; | |
1969 | second_half_end = current_end; | |
1970 | } | |
1971 | else | |
1972 | { | |
1973 | first_half_begin = middle; | |
1974 | first_half_end = current_end; | |
1975 | second_half_begin = current_begin; | |
1976 | second_half_end = middle; | |
1977 | } | |
1978 | ||
1979 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1980 | buf + (first_half_begin - begin), | |
1981 | first_half_begin, | |
1982 | first_half_end - first_half_begin); | |
1983 | ||
1984 | if (xfer == first_half_end - first_half_begin) | |
1985 | { | |
c378eb4e | 1986 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 1987 | other half. */ |
8dedea02 VP |
1988 | current_begin = second_half_begin; |
1989 | current_end = second_half_end; | |
1990 | } | |
1991 | else | |
1992 | { | |
c378eb4e MS |
1993 | /* This half is not readable. Because we've tried one byte, we |
1994 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
1995 | iteration to divide again and try to read. |
1996 | ||
1997 | We don't handle the other half, because this function only tries | |
1998 | to read a single readable subrange. */ | |
1999 | current_begin = first_half_begin; | |
2000 | current_end = first_half_end; | |
2001 | } | |
2002 | } | |
2003 | ||
2004 | if (forward) | |
2005 | { | |
2006 | /* The [begin, current_begin) range has been read. */ | |
2007 | r.begin = begin; | |
2008 | r.end = current_begin; | |
2009 | r.data = buf; | |
2010 | } | |
2011 | else | |
2012 | { | |
2013 | /* The [current_end, end) range has been read. */ | |
2014 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2015 | |
8dedea02 VP |
2016 | r.data = xmalloc (rlen); |
2017 | memcpy (r.data, buf + current_end - begin, rlen); | |
2018 | r.begin = current_end; | |
2019 | r.end = end; | |
2020 | xfree (buf); | |
2021 | } | |
2022 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2023 | } | |
2024 | ||
2025 | void | |
2026 | free_memory_read_result_vector (void *x) | |
2027 | { | |
2028 | VEC(memory_read_result_s) *v = x; | |
2029 | memory_read_result_s *current; | |
2030 | int ix; | |
2031 | ||
2032 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2033 | { | |
2034 | xfree (current->data); | |
2035 | } | |
2036 | VEC_free (memory_read_result_s, v); | |
2037 | } | |
2038 | ||
2039 | VEC(memory_read_result_s) * | |
2040 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2041 | { | |
2042 | VEC(memory_read_result_s) *result = 0; | |
2043 | ||
2044 | LONGEST xfered = 0; | |
d5086790 VP |
2045 | while (xfered < len) |
2046 | { | |
8dedea02 VP |
2047 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2048 | LONGEST rlen; | |
5d502164 | 2049 | |
8dedea02 VP |
2050 | /* If there is no explicit region, a fake one should be created. */ |
2051 | gdb_assert (region); | |
2052 | ||
2053 | if (region->hi == 0) | |
2054 | rlen = len - xfered; | |
2055 | else | |
2056 | rlen = region->hi - offset; | |
2057 | ||
2058 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2059 | { |
c378eb4e | 2060 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2061 | if the region is explicitly marked inaccessible, or |
2062 | 'inaccessible-by-default' is in effect. */ | |
2063 | xfered += rlen; | |
2064 | } | |
2065 | else | |
2066 | { | |
2067 | LONGEST to_read = min (len - xfered, rlen); | |
2068 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2069 | ||
2070 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2071 | (gdb_byte *) buffer, | |
2072 | offset + xfered, to_read); | |
2073 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2074 | if (xfer <= 0) |
d5086790 | 2075 | { |
c378eb4e | 2076 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2077 | some subrange. */ |
2078 | xfree (buffer); | |
3e43a32a MS |
2079 | read_whatever_is_readable (ops, offset + xfered, |
2080 | offset + xfered + to_read, &result); | |
8dedea02 | 2081 | xfered += to_read; |
d5086790 | 2082 | } |
8dedea02 VP |
2083 | else |
2084 | { | |
2085 | struct memory_read_result r; | |
2086 | r.data = buffer; | |
2087 | r.begin = offset + xfered; | |
2088 | r.end = r.begin + xfer; | |
2089 | VEC_safe_push (memory_read_result_s, result, &r); | |
2090 | xfered += xfer; | |
2091 | } | |
2092 | QUIT; | |
d5086790 | 2093 | } |
d5086790 | 2094 | } |
8dedea02 | 2095 | return result; |
d5086790 VP |
2096 | } |
2097 | ||
8dedea02 | 2098 | |
cf7a04e8 DJ |
2099 | /* An alternative to target_write with progress callbacks. */ |
2100 | ||
1e3ff5ad | 2101 | LONGEST |
cf7a04e8 DJ |
2102 | target_write_with_progress (struct target_ops *ops, |
2103 | enum target_object object, | |
2104 | const char *annex, const gdb_byte *buf, | |
2105 | ULONGEST offset, LONGEST len, | |
2106 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2107 | { |
2108 | LONGEST xfered = 0; | |
a76d924d DJ |
2109 | |
2110 | /* Give the progress callback a chance to set up. */ | |
2111 | if (progress) | |
2112 | (*progress) (0, baton); | |
2113 | ||
1e3ff5ad AC |
2114 | while (xfered < len) |
2115 | { | |
9b409511 YQ |
2116 | ULONGEST xfered_len; |
2117 | enum target_xfer_status status; | |
2118 | ||
2119 | status = target_write_partial (ops, object, annex, | |
2120 | (gdb_byte *) buf + xfered, | |
2121 | offset + xfered, len - xfered, | |
2122 | &xfered_len); | |
cf7a04e8 | 2123 | |
9b409511 | 2124 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2125 | return xfered; |
9b409511 | 2126 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2127 | return -1; |
cf7a04e8 | 2128 | |
9b409511 | 2129 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2130 | if (progress) |
9b409511 | 2131 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2132 | |
9b409511 | 2133 | xfered += xfered_len; |
1e3ff5ad AC |
2134 | QUIT; |
2135 | } | |
2136 | return len; | |
2137 | } | |
2138 | ||
7f79c47e DE |
2139 | /* For docs on target_write see target.h. */ |
2140 | ||
cf7a04e8 DJ |
2141 | LONGEST |
2142 | target_write (struct target_ops *ops, | |
2143 | enum target_object object, | |
2144 | const char *annex, const gdb_byte *buf, | |
2145 | ULONGEST offset, LONGEST len) | |
2146 | { | |
2147 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2148 | NULL, NULL); | |
2149 | } | |
2150 | ||
159f81f3 DJ |
2151 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2152 | the size of the transferred data. PADDING additional bytes are | |
2153 | available in *BUF_P. This is a helper function for | |
2154 | target_read_alloc; see the declaration of that function for more | |
2155 | information. */ | |
13547ab6 | 2156 | |
159f81f3 DJ |
2157 | static LONGEST |
2158 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2159 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2160 | { |
2161 | size_t buf_alloc, buf_pos; | |
2162 | gdb_byte *buf; | |
13547ab6 DJ |
2163 | |
2164 | /* This function does not have a length parameter; it reads the | |
2165 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2166 | from one target and partly from another (in a different stratum, | |
2167 | e.g. a core file and an executable). Both reasons make it | |
2168 | unsuitable for reading memory. */ | |
2169 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2170 | ||
2171 | /* Start by reading up to 4K at a time. The target will throttle | |
2172 | this number down if necessary. */ | |
2173 | buf_alloc = 4096; | |
2174 | buf = xmalloc (buf_alloc); | |
2175 | buf_pos = 0; | |
2176 | while (1) | |
2177 | { | |
9b409511 YQ |
2178 | ULONGEST xfered_len; |
2179 | enum target_xfer_status status; | |
2180 | ||
2181 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2182 | buf_pos, buf_alloc - buf_pos - padding, | |
2183 | &xfered_len); | |
2184 | ||
2185 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2186 | { |
2187 | /* Read all there was. */ | |
2188 | if (buf_pos == 0) | |
2189 | xfree (buf); | |
2190 | else | |
2191 | *buf_p = buf; | |
2192 | return buf_pos; | |
2193 | } | |
9b409511 YQ |
2194 | else if (status != TARGET_XFER_OK) |
2195 | { | |
2196 | /* An error occurred. */ | |
2197 | xfree (buf); | |
2198 | return TARGET_XFER_E_IO; | |
2199 | } | |
13547ab6 | 2200 | |
9b409511 | 2201 | buf_pos += xfered_len; |
13547ab6 DJ |
2202 | |
2203 | /* If the buffer is filling up, expand it. */ | |
2204 | if (buf_alloc < buf_pos * 2) | |
2205 | { | |
2206 | buf_alloc *= 2; | |
2207 | buf = xrealloc (buf, buf_alloc); | |
2208 | } | |
2209 | ||
2210 | QUIT; | |
2211 | } | |
2212 | } | |
2213 | ||
159f81f3 DJ |
2214 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2215 | the size of the transferred data. See the declaration in "target.h" | |
2216 | function for more information about the return value. */ | |
2217 | ||
2218 | LONGEST | |
2219 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2220 | const char *annex, gdb_byte **buf_p) | |
2221 | { | |
2222 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2223 | } | |
2224 | ||
2225 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2226 | returned as a string, allocated using xmalloc. If an error occurs | |
2227 | or the transfer is unsupported, NULL is returned. Empty objects | |
2228 | are returned as allocated but empty strings. A warning is issued | |
2229 | if the result contains any embedded NUL bytes. */ | |
2230 | ||
2231 | char * | |
2232 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2233 | const char *annex) | |
2234 | { | |
39086a0e PA |
2235 | gdb_byte *buffer; |
2236 | char *bufstr; | |
7313baad | 2237 | LONGEST i, transferred; |
159f81f3 | 2238 | |
39086a0e PA |
2239 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2240 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2241 | |
2242 | if (transferred < 0) | |
2243 | return NULL; | |
2244 | ||
2245 | if (transferred == 0) | |
2246 | return xstrdup (""); | |
2247 | ||
39086a0e | 2248 | bufstr[transferred] = 0; |
7313baad UW |
2249 | |
2250 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2251 | for (i = strlen (bufstr); i < transferred; i++) |
2252 | if (bufstr[i] != 0) | |
7313baad UW |
2253 | { |
2254 | warning (_("target object %d, annex %s, " | |
2255 | "contained unexpected null characters"), | |
2256 | (int) object, annex ? annex : "(none)"); | |
2257 | break; | |
2258 | } | |
159f81f3 | 2259 | |
39086a0e | 2260 | return bufstr; |
159f81f3 DJ |
2261 | } |
2262 | ||
b6591e8b AC |
2263 | /* Memory transfer methods. */ |
2264 | ||
2265 | void | |
1b0ba102 | 2266 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2267 | LONGEST len) |
2268 | { | |
07b82ea5 PA |
2269 | /* This method is used to read from an alternate, non-current |
2270 | target. This read must bypass the overlay support (as symbols | |
2271 | don't match this target), and GDB's internal cache (wrong cache | |
2272 | for this target). */ | |
2273 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2274 | != len) |
578d3588 | 2275 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2276 | } |
2277 | ||
2278 | ULONGEST | |
5d502164 MS |
2279 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2280 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2281 | { |
f6519ebc | 2282 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2283 | |
2284 | gdb_assert (len <= sizeof (buf)); | |
2285 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2286 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2287 | } |
2288 | ||
3db08215 MM |
2289 | /* See target.h. */ |
2290 | ||
d914c394 SS |
2291 | int |
2292 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2293 | struct bp_target_info *bp_tgt) | |
2294 | { | |
2295 | if (!may_insert_breakpoints) | |
2296 | { | |
2297 | warning (_("May not insert breakpoints")); | |
2298 | return 1; | |
2299 | } | |
2300 | ||
6b84065d TT |
2301 | return current_target.to_insert_breakpoint (¤t_target, |
2302 | gdbarch, bp_tgt); | |
d914c394 SS |
2303 | } |
2304 | ||
3db08215 MM |
2305 | /* See target.h. */ |
2306 | ||
d914c394 | 2307 | int |
6b84065d TT |
2308 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2309 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2310 | { |
2311 | /* This is kind of a weird case to handle, but the permission might | |
2312 | have been changed after breakpoints were inserted - in which case | |
2313 | we should just take the user literally and assume that any | |
2314 | breakpoints should be left in place. */ | |
2315 | if (!may_insert_breakpoints) | |
2316 | { | |
2317 | warning (_("May not remove breakpoints")); | |
2318 | return 1; | |
2319 | } | |
2320 | ||
6b84065d TT |
2321 | return current_target.to_remove_breakpoint (¤t_target, |
2322 | gdbarch, bp_tgt); | |
d914c394 SS |
2323 | } |
2324 | ||
c906108c | 2325 | static void |
fba45db2 | 2326 | target_info (char *args, int from_tty) |
c906108c SS |
2327 | { |
2328 | struct target_ops *t; | |
c906108c | 2329 | int has_all_mem = 0; |
c5aa993b | 2330 | |
c906108c | 2331 | if (symfile_objfile != NULL) |
4262abfb JK |
2332 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2333 | objfile_name (symfile_objfile)); | |
c906108c | 2334 | |
258b763a | 2335 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2336 | { |
c35b1492 | 2337 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2338 | continue; |
2339 | ||
c5aa993b | 2340 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2341 | continue; |
2342 | if (has_all_mem) | |
3e43a32a MS |
2343 | printf_unfiltered (_("\tWhile running this, " |
2344 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2345 | printf_unfiltered ("%s:\n", t->to_longname); |
2346 | (t->to_files_info) (t); | |
c35b1492 | 2347 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2348 | } |
2349 | } | |
2350 | ||
fd79ecee DJ |
2351 | /* This function is called before any new inferior is created, e.g. |
2352 | by running a program, attaching, or connecting to a target. | |
2353 | It cleans up any state from previous invocations which might | |
2354 | change between runs. This is a subset of what target_preopen | |
2355 | resets (things which might change between targets). */ | |
2356 | ||
2357 | void | |
2358 | target_pre_inferior (int from_tty) | |
2359 | { | |
c378eb4e | 2360 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2361 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2362 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2363 | to reproduce: |
2364 | ||
2365 | bash$ ./foo& | |
2366 | [1] 4711 | |
2367 | bash$ ./foo& | |
2368 | [1] 4712 | |
2369 | bash$ gdb ./foo | |
2370 | [...] | |
2371 | (gdb) attach 4711 | |
2372 | (gdb) detach | |
2373 | (gdb) attach 4712 | |
2374 | Cannot access memory at address 0xdeadbeef | |
2375 | */ | |
b9db4ced | 2376 | |
50c71eaf PA |
2377 | /* In some OSs, the shared library list is the same/global/shared |
2378 | across inferiors. If code is shared between processes, so are | |
2379 | memory regions and features. */ | |
f5656ead | 2380 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2381 | { |
2382 | no_shared_libraries (NULL, from_tty); | |
2383 | ||
2384 | invalidate_target_mem_regions (); | |
424163ea | 2385 | |
50c71eaf PA |
2386 | target_clear_description (); |
2387 | } | |
8ffcbaaf YQ |
2388 | |
2389 | agent_capability_invalidate (); | |
fd79ecee DJ |
2390 | } |
2391 | ||
b8fa0bfa PA |
2392 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2393 | inferior. */ | |
2394 | ||
2395 | static int | |
2396 | dispose_inferior (struct inferior *inf, void *args) | |
2397 | { | |
2398 | struct thread_info *thread; | |
2399 | ||
2400 | thread = any_thread_of_process (inf->pid); | |
2401 | if (thread) | |
2402 | { | |
2403 | switch_to_thread (thread->ptid); | |
2404 | ||
2405 | /* Core inferiors actually should be detached, not killed. */ | |
2406 | if (target_has_execution) | |
2407 | target_kill (); | |
2408 | else | |
2409 | target_detach (NULL, 0); | |
2410 | } | |
2411 | ||
2412 | return 0; | |
2413 | } | |
2414 | ||
c906108c SS |
2415 | /* This is to be called by the open routine before it does |
2416 | anything. */ | |
2417 | ||
2418 | void | |
fba45db2 | 2419 | target_preopen (int from_tty) |
c906108c | 2420 | { |
c5aa993b | 2421 | dont_repeat (); |
c906108c | 2422 | |
b8fa0bfa | 2423 | if (have_inferiors ()) |
c5aa993b | 2424 | { |
adf40b2e | 2425 | if (!from_tty |
b8fa0bfa PA |
2426 | || !have_live_inferiors () |
2427 | || query (_("A program is being debugged already. Kill it? "))) | |
2428 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2429 | else |
8a3fe4f8 | 2430 | error (_("Program not killed.")); |
c906108c SS |
2431 | } |
2432 | ||
2433 | /* Calling target_kill may remove the target from the stack. But if | |
2434 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2435 | /* Leave the exec target, though. The user may be switching from a |
2436 | live process to a core of the same program. */ | |
460014f5 | 2437 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2438 | |
2439 | target_pre_inferior (from_tty); | |
c906108c SS |
2440 | } |
2441 | ||
2442 | /* Detach a target after doing deferred register stores. */ | |
2443 | ||
2444 | void | |
52554a0e | 2445 | target_detach (const char *args, int from_tty) |
c906108c | 2446 | { |
136d6dae VP |
2447 | struct target_ops* t; |
2448 | ||
f5656ead | 2449 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2450 | /* Don't remove global breakpoints here. They're removed on |
2451 | disconnection from the target. */ | |
2452 | ; | |
2453 | else | |
2454 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2455 | them before detaching. */ | |
dfd4cc63 | 2456 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2457 | |
24291992 PA |
2458 | prepare_for_detach (); |
2459 | ||
09da0d0a TT |
2460 | current_target.to_detach (¤t_target, args, from_tty); |
2461 | if (targetdebug) | |
2462 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2463 | args, from_tty); | |
c906108c SS |
2464 | } |
2465 | ||
6ad8ae5c DJ |
2466 | void |
2467 | target_disconnect (char *args, int from_tty) | |
2468 | { | |
50c71eaf PA |
2469 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2470 | are global across processes, we have to remove them before | |
2471 | disconnecting. */ | |
74960c60 VP |
2472 | remove_breakpoints (); |
2473 | ||
86a0854a TT |
2474 | if (targetdebug) |
2475 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2476 | args, from_tty); | |
2477 | current_target.to_disconnect (¤t_target, args, from_tty); | |
6ad8ae5c DJ |
2478 | } |
2479 | ||
117de6a9 | 2480 | ptid_t |
47608cb1 | 2481 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2482 | { |
2483 | struct target_ops *t; | |
6b84065d TT |
2484 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2485 | status, options); | |
117de6a9 | 2486 | |
6b84065d | 2487 | if (targetdebug) |
117de6a9 | 2488 | { |
6b84065d TT |
2489 | char *status_string; |
2490 | char *options_string; | |
117de6a9 | 2491 | |
6b84065d TT |
2492 | status_string = target_waitstatus_to_string (status); |
2493 | options_string = target_options_to_string (options); | |
2494 | fprintf_unfiltered (gdb_stdlog, | |
2495 | "target_wait (%d, status, options={%s})" | |
2496 | " = %d, %s\n", | |
2497 | ptid_get_pid (ptid), options_string, | |
2498 | ptid_get_pid (retval), status_string); | |
2499 | xfree (status_string); | |
2500 | xfree (options_string); | |
117de6a9 PA |
2501 | } |
2502 | ||
6b84065d | 2503 | return retval; |
117de6a9 PA |
2504 | } |
2505 | ||
2506 | char * | |
2507 | target_pid_to_str (ptid_t ptid) | |
2508 | { | |
770234d3 | 2509 | return (*current_target.to_pid_to_str) (¤t_target, ptid); |
117de6a9 PA |
2510 | } |
2511 | ||
4694da01 TT |
2512 | char * |
2513 | target_thread_name (struct thread_info *info) | |
2514 | { | |
825828fc | 2515 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2516 | } |
2517 | ||
e1ac3328 | 2518 | void |
2ea28649 | 2519 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2520 | { |
28439f5e PA |
2521 | struct target_ops *t; |
2522 | ||
4e5d721f | 2523 | target_dcache_invalidate (); |
28439f5e | 2524 | |
6b84065d TT |
2525 | current_target.to_resume (¤t_target, ptid, step, signal); |
2526 | if (targetdebug) | |
2527 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2528 | ptid_get_pid (ptid), | |
2529 | step ? "step" : "continue", | |
2530 | gdb_signal_to_name (signal)); | |
28439f5e | 2531 | |
6b84065d TT |
2532 | registers_changed_ptid (ptid); |
2533 | set_executing (ptid, 1); | |
2534 | set_running (ptid, 1); | |
2535 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2536 | } |
2455069d UW |
2537 | |
2538 | void | |
2539 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2540 | { | |
035cad7f | 2541 | if (targetdebug) |
2455069d | 2542 | { |
035cad7f | 2543 | int i; |
2455069d | 2544 | |
035cad7f TT |
2545 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", |
2546 | numsigs); | |
2455069d | 2547 | |
035cad7f TT |
2548 | for (i = 0; i < numsigs; i++) |
2549 | if (pass_signals[i]) | |
2550 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2551 | gdb_signal_to_name (i)); | |
2455069d | 2552 | |
035cad7f | 2553 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
2455069d | 2554 | } |
035cad7f TT |
2555 | |
2556 | (*current_target.to_pass_signals) (¤t_target, numsigs, pass_signals); | |
2455069d UW |
2557 | } |
2558 | ||
9b224c5e PA |
2559 | void |
2560 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2561 | { | |
7d4f8efa | 2562 | if (targetdebug) |
9b224c5e | 2563 | { |
7d4f8efa | 2564 | int i; |
9b224c5e | 2565 | |
7d4f8efa TT |
2566 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", |
2567 | numsigs); | |
9b224c5e | 2568 | |
7d4f8efa TT |
2569 | for (i = 0; i < numsigs; i++) |
2570 | if (program_signals[i]) | |
2571 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2572 | gdb_signal_to_name (i)); | |
9b224c5e | 2573 | |
7d4f8efa | 2574 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
9b224c5e | 2575 | } |
7d4f8efa TT |
2576 | |
2577 | (*current_target.to_program_signals) (¤t_target, | |
2578 | numsigs, program_signals); | |
9b224c5e PA |
2579 | } |
2580 | ||
098dba18 TT |
2581 | static int |
2582 | default_follow_fork (struct target_ops *self, int follow_child, | |
2583 | int detach_fork) | |
2584 | { | |
2585 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2586 | internal_error (__FILE__, __LINE__, | |
2587 | _("could not find a target to follow fork")); | |
2588 | } | |
2589 | ||
ee057212 DJ |
2590 | /* Look through the list of possible targets for a target that can |
2591 | follow forks. */ | |
2592 | ||
2593 | int | |
07107ca6 | 2594 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 | 2595 | { |
098dba18 TT |
2596 | int retval = current_target.to_follow_fork (¤t_target, |
2597 | follow_child, detach_fork); | |
ee057212 | 2598 | |
098dba18 TT |
2599 | if (targetdebug) |
2600 | fprintf_unfiltered (gdb_stdlog, | |
2601 | "target_follow_fork (%d, %d) = %d\n", | |
2602 | follow_child, detach_fork, retval); | |
2603 | return retval; | |
ee057212 DJ |
2604 | } |
2605 | ||
8d657035 TT |
2606 | static void |
2607 | default_mourn_inferior (struct target_ops *self) | |
2608 | { | |
2609 | internal_error (__FILE__, __LINE__, | |
2610 | _("could not find a target to follow mourn inferior")); | |
2611 | } | |
2612 | ||
136d6dae VP |
2613 | void |
2614 | target_mourn_inferior (void) | |
2615 | { | |
8d657035 TT |
2616 | current_target.to_mourn_inferior (¤t_target); |
2617 | if (targetdebug) | |
2618 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
136d6dae | 2619 | |
8d657035 TT |
2620 | /* We no longer need to keep handles on any of the object files. |
2621 | Make sure to release them to avoid unnecessarily locking any | |
2622 | of them while we're not actually debugging. */ | |
2623 | bfd_cache_close_all (); | |
136d6dae VP |
2624 | } |
2625 | ||
424163ea DJ |
2626 | /* Look for a target which can describe architectural features, starting |
2627 | from TARGET. If we find one, return its description. */ | |
2628 | ||
2629 | const struct target_desc * | |
2630 | target_read_description (struct target_ops *target) | |
2631 | { | |
2117c711 | 2632 | return target->to_read_description (target); |
424163ea DJ |
2633 | } |
2634 | ||
58a5184e | 2635 | /* This implements a basic search of memory, reading target memory and |
08388c79 DE |
2636 | performing the search here (as opposed to performing the search in on the |
2637 | target side with, for example, gdbserver). */ | |
2638 | ||
2639 | int | |
2640 | simple_search_memory (struct target_ops *ops, | |
2641 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2642 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2643 | CORE_ADDR *found_addrp) | |
2644 | { | |
2645 | /* NOTE: also defined in find.c testcase. */ | |
2646 | #define SEARCH_CHUNK_SIZE 16000 | |
2647 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2648 | /* Buffer to hold memory contents for searching. */ | |
2649 | gdb_byte *search_buf; | |
2650 | unsigned search_buf_size; | |
2651 | struct cleanup *old_cleanups; | |
2652 | ||
2653 | search_buf_size = chunk_size + pattern_len - 1; | |
2654 | ||
2655 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2656 | if (search_space_len < search_buf_size) | |
2657 | search_buf_size = search_space_len; | |
2658 | ||
2659 | search_buf = malloc (search_buf_size); | |
2660 | if (search_buf == NULL) | |
5e1471f5 | 2661 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2662 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2663 | ||
2664 | /* Prime the search buffer. */ | |
2665 | ||
2666 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2667 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2668 | { | |
b3dc46ff AB |
2669 | warning (_("Unable to access %s bytes of target " |
2670 | "memory at %s, halting search."), | |
2671 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2672 | do_cleanups (old_cleanups); |
2673 | return -1; | |
2674 | } | |
2675 | ||
2676 | /* Perform the search. | |
2677 | ||
2678 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2679 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2680 | read in another N bytes. */ | |
2681 | ||
2682 | while (search_space_len >= pattern_len) | |
2683 | { | |
2684 | gdb_byte *found_ptr; | |
2685 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2686 | ||
2687 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2688 | pattern, pattern_len); | |
2689 | ||
2690 | if (found_ptr != NULL) | |
2691 | { | |
2692 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2693 | |
08388c79 DE |
2694 | *found_addrp = found_addr; |
2695 | do_cleanups (old_cleanups); | |
2696 | return 1; | |
2697 | } | |
2698 | ||
2699 | /* Not found in this chunk, skip to next chunk. */ | |
2700 | ||
2701 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2702 | if (search_space_len >= chunk_size) | |
2703 | search_space_len -= chunk_size; | |
2704 | else | |
2705 | search_space_len = 0; | |
2706 | ||
2707 | if (search_space_len >= pattern_len) | |
2708 | { | |
2709 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2710 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2711 | int nr_to_read; |
2712 | ||
2713 | /* Copy the trailing part of the previous iteration to the front | |
2714 | of the buffer for the next iteration. */ | |
2715 | gdb_assert (keep_len == pattern_len - 1); | |
2716 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2717 | ||
2718 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2719 | ||
2720 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2721 | search_buf + keep_len, read_addr, | |
2722 | nr_to_read) != nr_to_read) | |
2723 | { | |
b3dc46ff | 2724 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2725 | "memory at %s, halting search."), |
b3dc46ff | 2726 | plongest (nr_to_read), |
08388c79 DE |
2727 | hex_string (read_addr)); |
2728 | do_cleanups (old_cleanups); | |
2729 | return -1; | |
2730 | } | |
2731 | ||
2732 | start_addr += chunk_size; | |
2733 | } | |
2734 | } | |
2735 | ||
2736 | /* Not found. */ | |
2737 | ||
2738 | do_cleanups (old_cleanups); | |
2739 | return 0; | |
2740 | } | |
2741 | ||
58a5184e TT |
2742 | /* Default implementation of memory-searching. */ |
2743 | ||
2744 | static int | |
2745 | default_search_memory (struct target_ops *self, | |
2746 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2747 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2748 | CORE_ADDR *found_addrp) | |
2749 | { | |
2750 | /* Start over from the top of the target stack. */ | |
2751 | return simple_search_memory (current_target.beneath, | |
2752 | start_addr, search_space_len, | |
2753 | pattern, pattern_len, found_addrp); | |
2754 | } | |
2755 | ||
08388c79 DE |
2756 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
2757 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2758 | ||
2759 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2760 | requiring halting of the search (e.g. memory read error). | |
2761 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2762 | ||
2763 | int | |
2764 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2765 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2766 | CORE_ADDR *found_addrp) | |
2767 | { | |
08388c79 DE |
2768 | int found; |
2769 | ||
08388c79 DE |
2770 | if (targetdebug) |
2771 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2772 | hex_string (start_addr)); | |
2773 | ||
58a5184e TT |
2774 | found = current_target.to_search_memory (¤t_target, start_addr, |
2775 | search_space_len, | |
2776 | pattern, pattern_len, found_addrp); | |
08388c79 DE |
2777 | |
2778 | if (targetdebug) | |
2779 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2780 | ||
2781 | return found; | |
2782 | } | |
2783 | ||
8edfe269 DJ |
2784 | /* Look through the currently pushed targets. If none of them will |
2785 | be able to restart the currently running process, issue an error | |
2786 | message. */ | |
2787 | ||
2788 | void | |
2789 | target_require_runnable (void) | |
2790 | { | |
2791 | struct target_ops *t; | |
2792 | ||
2793 | for (t = target_stack; t != NULL; t = t->beneath) | |
2794 | { | |
2795 | /* If this target knows how to create a new program, then | |
2796 | assume we will still be able to after killing the current | |
2797 | one. Either killing and mourning will not pop T, or else | |
2798 | find_default_run_target will find it again. */ | |
2799 | if (t->to_create_inferior != NULL) | |
2800 | return; | |
2801 | ||
2802 | /* Do not worry about thread_stratum targets that can not | |
2803 | create inferiors. Assume they will be pushed again if | |
2804 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2805 | if (t->to_stratum == thread_stratum |
2806 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2807 | continue; |
2808 | ||
3e43a32a MS |
2809 | error (_("The \"%s\" target does not support \"run\". " |
2810 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2811 | t->to_shortname); |
2812 | } | |
2813 | ||
2814 | /* This function is only called if the target is running. In that | |
2815 | case there should have been a process_stratum target and it | |
c378eb4e | 2816 | should either know how to create inferiors, or not... */ |
9b20d036 | 2817 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2818 | } |
2819 | ||
c906108c SS |
2820 | /* Look through the list of possible targets for a target that can |
2821 | execute a run or attach command without any other data. This is | |
2822 | used to locate the default process stratum. | |
2823 | ||
5f667f2d PA |
2824 | If DO_MESG is not NULL, the result is always valid (error() is |
2825 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2826 | |
2827 | static struct target_ops * | |
fba45db2 | 2828 | find_default_run_target (char *do_mesg) |
c906108c SS |
2829 | { |
2830 | struct target_ops **t; | |
2831 | struct target_ops *runable = NULL; | |
2832 | int count; | |
2833 | ||
2834 | count = 0; | |
2835 | ||
2836 | for (t = target_structs; t < target_structs + target_struct_size; | |
2837 | ++t) | |
2838 | { | |
e88ef65c | 2839 | if ((*t)->to_can_run != delegate_can_run && target_can_run (*t)) |
c906108c SS |
2840 | { |
2841 | runable = *t; | |
2842 | ++count; | |
2843 | } | |
2844 | } | |
2845 | ||
2846 | if (count != 1) | |
5f667f2d PA |
2847 | { |
2848 | if (do_mesg) | |
2849 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2850 | else | |
2851 | return NULL; | |
2852 | } | |
c906108c SS |
2853 | |
2854 | return runable; | |
2855 | } | |
2856 | ||
2857 | void | |
136d6dae | 2858 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2859 | { |
2860 | struct target_ops *t; | |
2861 | ||
c5aa993b | 2862 | t = find_default_run_target ("attach"); |
136d6dae | 2863 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2864 | return; |
2865 | } | |
2866 | ||
c906108c | 2867 | void |
136d6dae VP |
2868 | find_default_create_inferior (struct target_ops *ops, |
2869 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2870 | int from_tty) |
c906108c SS |
2871 | { |
2872 | struct target_ops *t; | |
2873 | ||
c5aa993b | 2874 | t = find_default_run_target ("run"); |
136d6dae | 2875 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
2876 | return; |
2877 | } | |
2878 | ||
2c0b251b | 2879 | static int |
6a109b6b | 2880 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
2881 | { |
2882 | struct target_ops *t; | |
2883 | ||
5f667f2d PA |
2884 | /* This may be called before the target is pushed on the stack; |
2885 | look for the default process stratum. If there's none, gdb isn't | |
2886 | configured with a native debugger, and target remote isn't | |
2887 | connected yet. */ | |
2888 | t = find_default_run_target (NULL); | |
6b84065d | 2889 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 2890 | return (t->to_can_async_p) (t); |
b84876c2 PA |
2891 | return 0; |
2892 | } | |
2893 | ||
2c0b251b | 2894 | static int |
6a109b6b | 2895 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
2896 | { |
2897 | struct target_ops *t; | |
2898 | ||
5f667f2d PA |
2899 | /* This may be called before the target is pushed on the stack; |
2900 | look for the default process stratum. If there's none, gdb isn't | |
2901 | configured with a native debugger, and target remote isn't | |
2902 | connected yet. */ | |
2903 | t = find_default_run_target (NULL); | |
6b84065d | 2904 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 2905 | return (t->to_is_async_p) (t); |
b84876c2 PA |
2906 | return 0; |
2907 | } | |
2908 | ||
2c0b251b | 2909 | static int |
2a9a2795 | 2910 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
2911 | { |
2912 | struct target_ops *t; | |
2913 | ||
2914 | t = find_default_run_target (NULL); | |
2915 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 2916 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
2917 | return 0; |
2918 | } | |
2919 | ||
2920 | int | |
2c0b251b | 2921 | target_supports_non_stop (void) |
9908b566 VP |
2922 | { |
2923 | struct target_ops *t; | |
5d502164 | 2924 | |
9908b566 VP |
2925 | for (t = ¤t_target; t != NULL; t = t->beneath) |
2926 | if (t->to_supports_non_stop) | |
2a9a2795 | 2927 | return t->to_supports_non_stop (t); |
9908b566 VP |
2928 | |
2929 | return 0; | |
2930 | } | |
2931 | ||
145b16a9 UW |
2932 | /* Implement the "info proc" command. */ |
2933 | ||
451b7c33 | 2934 | int |
145b16a9 UW |
2935 | target_info_proc (char *args, enum info_proc_what what) |
2936 | { | |
2937 | struct target_ops *t; | |
2938 | ||
2939 | /* If we're already connected to something that can get us OS | |
2940 | related data, use it. Otherwise, try using the native | |
2941 | target. */ | |
2942 | if (current_target.to_stratum >= process_stratum) | |
2943 | t = current_target.beneath; | |
2944 | else | |
2945 | t = find_default_run_target (NULL); | |
2946 | ||
2947 | for (; t != NULL; t = t->beneath) | |
2948 | { | |
2949 | if (t->to_info_proc != NULL) | |
2950 | { | |
2951 | t->to_info_proc (t, args, what); | |
2952 | ||
2953 | if (targetdebug) | |
2954 | fprintf_unfiltered (gdb_stdlog, | |
2955 | "target_info_proc (\"%s\", %d)\n", args, what); | |
2956 | ||
451b7c33 | 2957 | return 1; |
145b16a9 UW |
2958 | } |
2959 | } | |
2960 | ||
451b7c33 | 2961 | return 0; |
145b16a9 UW |
2962 | } |
2963 | ||
03583c20 | 2964 | static int |
2bfc0540 | 2965 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
2966 | { |
2967 | struct target_ops *t; | |
2968 | ||
2969 | t = find_default_run_target (NULL); | |
2970 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 2971 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
2972 | return 0; |
2973 | } | |
2974 | ||
2975 | int | |
2976 | target_supports_disable_randomization (void) | |
2977 | { | |
2978 | struct target_ops *t; | |
2979 | ||
2980 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
2981 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 2982 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
2983 | |
2984 | return 0; | |
2985 | } | |
9908b566 | 2986 | |
07e059b5 VP |
2987 | char * |
2988 | target_get_osdata (const char *type) | |
2989 | { | |
07e059b5 VP |
2990 | struct target_ops *t; |
2991 | ||
739ef7fb PA |
2992 | /* If we're already connected to something that can get us OS |
2993 | related data, use it. Otherwise, try using the native | |
2994 | target. */ | |
2995 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 2996 | t = current_target.beneath; |
739ef7fb PA |
2997 | else |
2998 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
2999 | |
3000 | if (!t) | |
3001 | return NULL; | |
3002 | ||
6d097e65 | 3003 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3004 | } |
3005 | ||
6c95b8df PA |
3006 | /* Determine the current address space of thread PTID. */ |
3007 | ||
3008 | struct address_space * | |
3009 | target_thread_address_space (ptid_t ptid) | |
3010 | { | |
c0694254 | 3011 | struct address_space *aspace; |
6c95b8df | 3012 | struct inferior *inf; |
c0694254 PA |
3013 | struct target_ops *t; |
3014 | ||
3015 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3016 | { | |
3017 | if (t->to_thread_address_space != NULL) | |
3018 | { | |
3019 | aspace = t->to_thread_address_space (t, ptid); | |
3020 | gdb_assert (aspace); | |
6c95b8df | 3021 | |
c0694254 PA |
3022 | if (targetdebug) |
3023 | fprintf_unfiltered (gdb_stdlog, | |
3024 | "target_thread_address_space (%s) = %d\n", | |
3025 | target_pid_to_str (ptid), | |
3026 | address_space_num (aspace)); | |
3027 | return aspace; | |
3028 | } | |
3029 | } | |
6c95b8df PA |
3030 | |
3031 | /* Fall-back to the "main" address space of the inferior. */ | |
3032 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3033 | ||
3034 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3035 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3036 | _("Can't determine the current " |
3037 | "address space of thread %s\n"), | |
6c95b8df PA |
3038 | target_pid_to_str (ptid)); |
3039 | ||
3040 | return inf->aspace; | |
3041 | } | |
3042 | ||
7313baad UW |
3043 | |
3044 | /* Target file operations. */ | |
3045 | ||
3046 | static struct target_ops * | |
3047 | default_fileio_target (void) | |
3048 | { | |
3049 | /* If we're already connected to something that can perform | |
3050 | file I/O, use it. Otherwise, try using the native target. */ | |
3051 | if (current_target.to_stratum >= process_stratum) | |
3052 | return current_target.beneath; | |
3053 | else | |
3054 | return find_default_run_target ("file I/O"); | |
3055 | } | |
3056 | ||
3057 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3058 | target file descriptor, or -1 if an error occurs (and set | |
3059 | *TARGET_ERRNO). */ | |
3060 | int | |
3061 | target_fileio_open (const char *filename, int flags, int mode, | |
3062 | int *target_errno) | |
3063 | { | |
3064 | struct target_ops *t; | |
3065 | ||
3066 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3067 | { | |
3068 | if (t->to_fileio_open != NULL) | |
3069 | { | |
cd897586 | 3070 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
3071 | |
3072 | if (targetdebug) | |
3073 | fprintf_unfiltered (gdb_stdlog, | |
3074 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3075 | filename, flags, mode, | |
3076 | fd, fd != -1 ? 0 : *target_errno); | |
3077 | return fd; | |
3078 | } | |
3079 | } | |
3080 | ||
3081 | *target_errno = FILEIO_ENOSYS; | |
3082 | return -1; | |
3083 | } | |
3084 | ||
3085 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3086 | Return the number of bytes written, or -1 if an error occurs | |
3087 | (and set *TARGET_ERRNO). */ | |
3088 | int | |
3089 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3090 | ULONGEST offset, int *target_errno) | |
3091 | { | |
3092 | struct target_ops *t; | |
3093 | ||
3094 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3095 | { | |
3096 | if (t->to_fileio_pwrite != NULL) | |
3097 | { | |
0d866f62 | 3098 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
3099 | target_errno); |
3100 | ||
3101 | if (targetdebug) | |
3102 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3103 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3104 | "= %d (%d)\n", |
a71b5a38 | 3105 | fd, len, pulongest (offset), |
7313baad UW |
3106 | ret, ret != -1 ? 0 : *target_errno); |
3107 | return ret; | |
3108 | } | |
3109 | } | |
3110 | ||
3111 | *target_errno = FILEIO_ENOSYS; | |
3112 | return -1; | |
3113 | } | |
3114 | ||
3115 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3116 | Return the number of bytes read, or -1 if an error occurs | |
3117 | (and set *TARGET_ERRNO). */ | |
3118 | int | |
3119 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3120 | ULONGEST offset, int *target_errno) | |
3121 | { | |
3122 | struct target_ops *t; | |
3123 | ||
3124 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3125 | { | |
3126 | if (t->to_fileio_pread != NULL) | |
3127 | { | |
a3be983c | 3128 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
3129 | target_errno); |
3130 | ||
3131 | if (targetdebug) | |
3132 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3133 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3134 | "= %d (%d)\n", |
a71b5a38 | 3135 | fd, len, pulongest (offset), |
7313baad UW |
3136 | ret, ret != -1 ? 0 : *target_errno); |
3137 | return ret; | |
3138 | } | |
3139 | } | |
3140 | ||
3141 | *target_errno = FILEIO_ENOSYS; | |
3142 | return -1; | |
3143 | } | |
3144 | ||
3145 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3146 | (and set *TARGET_ERRNO). */ | |
3147 | int | |
3148 | target_fileio_close (int fd, int *target_errno) | |
3149 | { | |
3150 | struct target_ops *t; | |
3151 | ||
3152 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3153 | { | |
3154 | if (t->to_fileio_close != NULL) | |
3155 | { | |
df39ea25 | 3156 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
3157 | |
3158 | if (targetdebug) | |
3159 | fprintf_unfiltered (gdb_stdlog, | |
3160 | "target_fileio_close (%d) = %d (%d)\n", | |
3161 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3162 | return ret; | |
3163 | } | |
3164 | } | |
3165 | ||
3166 | *target_errno = FILEIO_ENOSYS; | |
3167 | return -1; | |
3168 | } | |
3169 | ||
3170 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3171 | occurs (and set *TARGET_ERRNO). */ | |
3172 | int | |
3173 | target_fileio_unlink (const char *filename, int *target_errno) | |
3174 | { | |
3175 | struct target_ops *t; | |
3176 | ||
3177 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3178 | { | |
3179 | if (t->to_fileio_unlink != NULL) | |
3180 | { | |
dbbca37d | 3181 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
3182 | |
3183 | if (targetdebug) | |
3184 | fprintf_unfiltered (gdb_stdlog, | |
3185 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3186 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3187 | return ret; | |
3188 | } | |
3189 | } | |
3190 | ||
3191 | *target_errno = FILEIO_ENOSYS; | |
3192 | return -1; | |
3193 | } | |
3194 | ||
b9e7b9c3 UW |
3195 | /* Read value of symbolic link FILENAME on the target. Return a |
3196 | null-terminated string allocated via xmalloc, or NULL if an error | |
3197 | occurs (and set *TARGET_ERRNO). */ | |
3198 | char * | |
3199 | target_fileio_readlink (const char *filename, int *target_errno) | |
3200 | { | |
3201 | struct target_ops *t; | |
3202 | ||
3203 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3204 | { | |
3205 | if (t->to_fileio_readlink != NULL) | |
3206 | { | |
fab5aa7c | 3207 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
3208 | |
3209 | if (targetdebug) | |
3210 | fprintf_unfiltered (gdb_stdlog, | |
3211 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3212 | filename, ret? ret : "(nil)", | |
3213 | ret? 0 : *target_errno); | |
3214 | return ret; | |
3215 | } | |
3216 | } | |
3217 | ||
3218 | *target_errno = FILEIO_ENOSYS; | |
3219 | return NULL; | |
3220 | } | |
3221 | ||
7313baad UW |
3222 | static void |
3223 | target_fileio_close_cleanup (void *opaque) | |
3224 | { | |
3225 | int fd = *(int *) opaque; | |
3226 | int target_errno; | |
3227 | ||
3228 | target_fileio_close (fd, &target_errno); | |
3229 | } | |
3230 | ||
3231 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3232 | return the size of the transferred data. PADDING additional bytes are | |
3233 | available in *BUF_P. This is a helper function for | |
3234 | target_fileio_read_alloc; see the declaration of that function for more | |
3235 | information. */ | |
3236 | ||
3237 | static LONGEST | |
3238 | target_fileio_read_alloc_1 (const char *filename, | |
3239 | gdb_byte **buf_p, int padding) | |
3240 | { | |
3241 | struct cleanup *close_cleanup; | |
3242 | size_t buf_alloc, buf_pos; | |
3243 | gdb_byte *buf; | |
3244 | LONGEST n; | |
3245 | int fd; | |
3246 | int target_errno; | |
3247 | ||
3248 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3249 | if (fd == -1) | |
3250 | return -1; | |
3251 | ||
3252 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3253 | ||
3254 | /* Start by reading up to 4K at a time. The target will throttle | |
3255 | this number down if necessary. */ | |
3256 | buf_alloc = 4096; | |
3257 | buf = xmalloc (buf_alloc); | |
3258 | buf_pos = 0; | |
3259 | while (1) | |
3260 | { | |
3261 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3262 | buf_alloc - buf_pos - padding, buf_pos, | |
3263 | &target_errno); | |
3264 | if (n < 0) | |
3265 | { | |
3266 | /* An error occurred. */ | |
3267 | do_cleanups (close_cleanup); | |
3268 | xfree (buf); | |
3269 | return -1; | |
3270 | } | |
3271 | else if (n == 0) | |
3272 | { | |
3273 | /* Read all there was. */ | |
3274 | do_cleanups (close_cleanup); | |
3275 | if (buf_pos == 0) | |
3276 | xfree (buf); | |
3277 | else | |
3278 | *buf_p = buf; | |
3279 | return buf_pos; | |
3280 | } | |
3281 | ||
3282 | buf_pos += n; | |
3283 | ||
3284 | /* If the buffer is filling up, expand it. */ | |
3285 | if (buf_alloc < buf_pos * 2) | |
3286 | { | |
3287 | buf_alloc *= 2; | |
3288 | buf = xrealloc (buf, buf_alloc); | |
3289 | } | |
3290 | ||
3291 | QUIT; | |
3292 | } | |
3293 | } | |
3294 | ||
3295 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3296 | the size of the transferred data. See the declaration in "target.h" | |
3297 | function for more information about the return value. */ | |
3298 | ||
3299 | LONGEST | |
3300 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3301 | { | |
3302 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3303 | } | |
3304 | ||
3305 | /* Read target file FILENAME. The result is NUL-terminated and | |
3306 | returned as a string, allocated using xmalloc. If an error occurs | |
3307 | or the transfer is unsupported, NULL is returned. Empty objects | |
3308 | are returned as allocated but empty strings. A warning is issued | |
3309 | if the result contains any embedded NUL bytes. */ | |
3310 | ||
3311 | char * | |
3312 | target_fileio_read_stralloc (const char *filename) | |
3313 | { | |
39086a0e PA |
3314 | gdb_byte *buffer; |
3315 | char *bufstr; | |
7313baad UW |
3316 | LONGEST i, transferred; |
3317 | ||
39086a0e PA |
3318 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3319 | bufstr = (char *) buffer; | |
7313baad UW |
3320 | |
3321 | if (transferred < 0) | |
3322 | return NULL; | |
3323 | ||
3324 | if (transferred == 0) | |
3325 | return xstrdup (""); | |
3326 | ||
39086a0e | 3327 | bufstr[transferred] = 0; |
7313baad UW |
3328 | |
3329 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3330 | for (i = strlen (bufstr); i < transferred; i++) |
3331 | if (bufstr[i] != 0) | |
7313baad UW |
3332 | { |
3333 | warning (_("target file %s " | |
3334 | "contained unexpected null characters"), | |
3335 | filename); | |
3336 | break; | |
3337 | } | |
3338 | ||
39086a0e | 3339 | return bufstr; |
7313baad UW |
3340 | } |
3341 | ||
3342 | ||
e0d24f8d | 3343 | static int |
31568a15 TT |
3344 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3345 | CORE_ADDR addr, int len) | |
e0d24f8d | 3346 | { |
f5656ead | 3347 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3348 | } |
3349 | ||
5009afc5 AS |
3350 | static int |
3351 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3352 | CORE_ADDR addr, | |
3353 | CORE_ADDR start, int length) | |
3354 | { | |
3355 | return addr >= start && addr < start + length; | |
3356 | } | |
3357 | ||
c2250ad1 UW |
3358 | static struct gdbarch * |
3359 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3360 | { | |
f5656ead | 3361 | return target_gdbarch (); |
c2250ad1 UW |
3362 | } |
3363 | ||
c906108c | 3364 | static int |
fba45db2 | 3365 | return_zero (void) |
c906108c SS |
3366 | { |
3367 | return 0; | |
3368 | } | |
3369 | ||
ed9a39eb JM |
3370 | /* |
3371 | * Find the next target down the stack from the specified target. | |
3372 | */ | |
3373 | ||
3374 | struct target_ops * | |
fba45db2 | 3375 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3376 | { |
258b763a | 3377 | return t->beneath; |
ed9a39eb JM |
3378 | } |
3379 | ||
8b06beed TT |
3380 | /* See target.h. */ |
3381 | ||
3382 | struct target_ops * | |
3383 | find_target_at (enum strata stratum) | |
3384 | { | |
3385 | struct target_ops *t; | |
3386 | ||
3387 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3388 | if (t->to_stratum == stratum) | |
3389 | return t; | |
3390 | ||
3391 | return NULL; | |
3392 | } | |
3393 | ||
c906108c SS |
3394 | \f |
3395 | /* The inferior process has died. Long live the inferior! */ | |
3396 | ||
3397 | void | |
fba45db2 | 3398 | generic_mourn_inferior (void) |
c906108c | 3399 | { |
7f9f62ba | 3400 | ptid_t ptid; |
c906108c | 3401 | |
7f9f62ba | 3402 | ptid = inferior_ptid; |
39f77062 | 3403 | inferior_ptid = null_ptid; |
7f9f62ba | 3404 | |
f59f708a PA |
3405 | /* Mark breakpoints uninserted in case something tries to delete a |
3406 | breakpoint while we delete the inferior's threads (which would | |
3407 | fail, since the inferior is long gone). */ | |
3408 | mark_breakpoints_out (); | |
3409 | ||
7f9f62ba PA |
3410 | if (!ptid_equal (ptid, null_ptid)) |
3411 | { | |
3412 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3413 | exit_inferior (pid); |
7f9f62ba PA |
3414 | } |
3415 | ||
f59f708a PA |
3416 | /* Note this wipes step-resume breakpoints, so needs to be done |
3417 | after exit_inferior, which ends up referencing the step-resume | |
3418 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3419 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3420 | |
c906108c SS |
3421 | registers_changed (); |
3422 | ||
c906108c SS |
3423 | reopen_exec_file (); |
3424 | reinit_frame_cache (); | |
3425 | ||
9a4105ab AC |
3426 | if (deprecated_detach_hook) |
3427 | deprecated_detach_hook (); | |
c906108c SS |
3428 | } |
3429 | \f | |
fd0a2a6f MK |
3430 | /* Convert a normal process ID to a string. Returns the string in a |
3431 | static buffer. */ | |
c906108c SS |
3432 | |
3433 | char * | |
39f77062 | 3434 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3435 | { |
fd0a2a6f | 3436 | static char buf[32]; |
c906108c | 3437 | |
5fff8fc0 | 3438 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3439 | return buf; |
3440 | } | |
3441 | ||
2c0b251b | 3442 | static char * |
770234d3 | 3443 | default_pid_to_str (struct target_ops *ops, ptid_t ptid) |
117de6a9 PA |
3444 | { |
3445 | return normal_pid_to_str (ptid); | |
3446 | } | |
3447 | ||
9b4eba8e HZ |
3448 | /* Error-catcher for target_find_memory_regions. */ |
3449 | static int | |
2e73927c TT |
3450 | dummy_find_memory_regions (struct target_ops *self, |
3451 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3452 | { |
9b4eba8e | 3453 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3454 | return 0; |
3455 | } | |
3456 | ||
9b4eba8e HZ |
3457 | /* Error-catcher for target_make_corefile_notes. */ |
3458 | static char * | |
fc6691b2 TT |
3459 | dummy_make_corefile_notes (struct target_ops *self, |
3460 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3461 | { |
9b4eba8e | 3462 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3463 | return NULL; |
3464 | } | |
3465 | ||
c906108c SS |
3466 | /* Set up the handful of non-empty slots needed by the dummy target |
3467 | vector. */ | |
3468 | ||
3469 | static void | |
fba45db2 | 3470 | init_dummy_target (void) |
c906108c SS |
3471 | { |
3472 | dummy_target.to_shortname = "None"; | |
3473 | dummy_target.to_longname = "None"; | |
3474 | dummy_target.to_doc = ""; | |
c906108c | 3475 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3476 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3477 | dummy_target.to_supports_disable_randomization |
3478 | = find_default_supports_disable_randomization; | |
c906108c | 3479 | dummy_target.to_stratum = dummy_stratum; |
c35b1492 PA |
3480 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3481 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3482 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3483 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3484 | dummy_target.to_has_execution |
3485 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3486 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3487 | |
3488 | install_dummy_methods (&dummy_target); | |
c906108c | 3489 | } |
c906108c | 3490 | \f |
c906108c | 3491 | static void |
fba45db2 | 3492 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3493 | { |
3494 | debug_target.to_open (args, from_tty); | |
3495 | ||
96baa820 | 3496 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3497 | } |
3498 | ||
f1c07ab0 | 3499 | void |
460014f5 | 3500 | target_close (struct target_ops *targ) |
f1c07ab0 | 3501 | { |
7fdc1521 TT |
3502 | gdb_assert (!target_is_pushed (targ)); |
3503 | ||
f1c07ab0 | 3504 | if (targ->to_xclose != NULL) |
460014f5 | 3505 | targ->to_xclose (targ); |
f1c07ab0 | 3506 | else if (targ->to_close != NULL) |
de90e03d | 3507 | targ->to_close (targ); |
947b8855 PA |
3508 | |
3509 | if (targetdebug) | |
460014f5 | 3510 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3511 | } |
3512 | ||
136d6dae VP |
3513 | void |
3514 | target_attach (char *args, int from_tty) | |
3515 | { | |
e9a29200 TT |
3516 | current_target.to_attach (¤t_target, args, from_tty); |
3517 | if (targetdebug) | |
3518 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3519 | args, from_tty); | |
136d6dae VP |
3520 | } |
3521 | ||
28439f5e PA |
3522 | int |
3523 | target_thread_alive (ptid_t ptid) | |
c906108c | 3524 | { |
cbffc065 | 3525 | int retval; |
28439f5e | 3526 | |
cbffc065 TT |
3527 | retval = current_target.to_thread_alive (¤t_target, ptid); |
3528 | if (targetdebug) | |
3529 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3530 | ptid_get_pid (ptid), retval); | |
28439f5e | 3531 | |
cbffc065 | 3532 | return retval; |
28439f5e PA |
3533 | } |
3534 | ||
3535 | void | |
3536 | target_find_new_threads (void) | |
3537 | { | |
09b0dc2b TT |
3538 | current_target.to_find_new_threads (¤t_target); |
3539 | if (targetdebug) | |
3540 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
c906108c SS |
3541 | } |
3542 | ||
d914c394 SS |
3543 | void |
3544 | target_stop (ptid_t ptid) | |
3545 | { | |
3546 | if (!may_stop) | |
3547 | { | |
3548 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3549 | return; | |
3550 | } | |
3551 | ||
1eab8a48 | 3552 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3553 | } |
3554 | ||
c906108c | 3555 | static void |
f045800c | 3556 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3557 | { |
f045800c | 3558 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3559 | |
28439f5e | 3560 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3561 | } |
3562 | ||
09826ec5 PA |
3563 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3564 | result. The LIST incoming argument is released. */ | |
3565 | ||
3566 | static char * | |
3567 | str_comma_list_concat_elem (char *list, const char *elem) | |
3568 | { | |
3569 | if (list == NULL) | |
3570 | return xstrdup (elem); | |
3571 | else | |
3572 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3573 | } | |
3574 | ||
3575 | /* Helper for target_options_to_string. If OPT is present in | |
3576 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3577 | Returns the new resulting string. OPT is removed from | |
3578 | TARGET_OPTIONS. */ | |
3579 | ||
3580 | static char * | |
3581 | do_option (int *target_options, char *ret, | |
3582 | int opt, char *opt_str) | |
3583 | { | |
3584 | if ((*target_options & opt) != 0) | |
3585 | { | |
3586 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3587 | *target_options &= ~opt; | |
3588 | } | |
3589 | ||
3590 | return ret; | |
3591 | } | |
3592 | ||
3593 | char * | |
3594 | target_options_to_string (int target_options) | |
3595 | { | |
3596 | char *ret = NULL; | |
3597 | ||
3598 | #define DO_TARG_OPTION(OPT) \ | |
3599 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3600 | ||
3601 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3602 | ||
3603 | if (target_options != 0) | |
3604 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3605 | ||
3606 | if (ret == NULL) | |
3607 | ret = xstrdup (""); | |
3608 | return ret; | |
3609 | } | |
3610 | ||
bf0c5130 | 3611 | static void |
56be3814 UW |
3612 | debug_print_register (const char * func, |
3613 | struct regcache *regcache, int regno) | |
bf0c5130 | 3614 | { |
f8d29908 | 3615 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3616 | |
bf0c5130 | 3617 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3618 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3619 | && gdbarch_register_name (gdbarch, regno) != NULL |
3620 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3621 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3622 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3623 | else |
3624 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3625 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3626 | { |
e17a4113 | 3627 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3628 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3629 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3630 | |
0ff58721 | 3631 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3632 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3633 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3634 | { |
3635 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3636 | } | |
81c4a259 | 3637 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3638 | { |
e17a4113 | 3639 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3640 | |
0b1553bc UW |
3641 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3642 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3643 | } |
3644 | } | |
3645 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3646 | } | |
3647 | ||
28439f5e PA |
3648 | void |
3649 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3650 | { |
ad5989bd TT |
3651 | current_target.to_fetch_registers (¤t_target, regcache, regno); |
3652 | if (targetdebug) | |
3653 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
3654 | } |
3655 | ||
28439f5e PA |
3656 | void |
3657 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3658 | { |
28439f5e | 3659 | struct target_ops *t; |
5d502164 | 3660 | |
d914c394 SS |
3661 | if (!may_write_registers) |
3662 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3663 | ||
6b84065d TT |
3664 | current_target.to_store_registers (¤t_target, regcache, regno); |
3665 | if (targetdebug) | |
28439f5e | 3666 | { |
6b84065d | 3667 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3668 | } |
c906108c SS |
3669 | } |
3670 | ||
dc146f7c VP |
3671 | int |
3672 | target_core_of_thread (ptid_t ptid) | |
3673 | { | |
9e538d0d | 3674 | int retval = current_target.to_core_of_thread (¤t_target, ptid); |
dc146f7c | 3675 | |
9e538d0d TT |
3676 | if (targetdebug) |
3677 | fprintf_unfiltered (gdb_stdlog, | |
3678 | "target_core_of_thread (%d) = %d\n", | |
3679 | ptid_get_pid (ptid), retval); | |
3680 | return retval; | |
dc146f7c VP |
3681 | } |
3682 | ||
4a5e7a5b PA |
3683 | int |
3684 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3685 | { | |
eb276a6b TT |
3686 | int retval = current_target.to_verify_memory (¤t_target, |
3687 | data, memaddr, size); | |
5d502164 | 3688 | |
eb276a6b TT |
3689 | if (targetdebug) |
3690 | fprintf_unfiltered (gdb_stdlog, | |
3691 | "target_verify_memory (%s, %s) = %d\n", | |
3692 | paddress (target_gdbarch (), memaddr), | |
3693 | pulongest (size), | |
3694 | retval); | |
3695 | return retval; | |
4a5e7a5b PA |
3696 | } |
3697 | ||
9c06b0b4 TJB |
3698 | /* The documentation for this function is in its prototype declaration in |
3699 | target.h. */ | |
3700 | ||
3701 | int | |
3702 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3703 | { | |
cd4ae029 | 3704 | int ret; |
9c06b0b4 | 3705 | |
cd4ae029 TT |
3706 | ret = current_target.to_insert_mask_watchpoint (¤t_target, |
3707 | addr, mask, rw); | |
9c06b0b4 | 3708 | |
cd4ae029 TT |
3709 | if (targetdebug) |
3710 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3711 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", |
cd4ae029 TT |
3712 | core_addr_to_string (addr), |
3713 | core_addr_to_string (mask), rw, ret); | |
3714 | ||
3715 | return ret; | |
9c06b0b4 TJB |
3716 | } |
3717 | ||
3718 | /* The documentation for this function is in its prototype declaration in | |
3719 | target.h. */ | |
3720 | ||
3721 | int | |
3722 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3723 | { | |
8b1c364c | 3724 | int ret; |
9c06b0b4 | 3725 | |
8b1c364c TT |
3726 | ret = current_target.to_remove_mask_watchpoint (¤t_target, |
3727 | addr, mask, rw); | |
9c06b0b4 | 3728 | |
8b1c364c TT |
3729 | if (targetdebug) |
3730 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3731 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", |
8b1c364c TT |
3732 | core_addr_to_string (addr), |
3733 | core_addr_to_string (mask), rw, ret); | |
9c06b0b4 | 3734 | |
8b1c364c | 3735 | return ret; |
9c06b0b4 TJB |
3736 | } |
3737 | ||
3738 | /* The documentation for this function is in its prototype declaration | |
3739 | in target.h. */ | |
3740 | ||
3741 | int | |
3742 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3743 | { | |
6c7e5e5c TT |
3744 | return current_target.to_masked_watch_num_registers (¤t_target, |
3745 | addr, mask); | |
9c06b0b4 TJB |
3746 | } |
3747 | ||
f1310107 TJB |
3748 | /* The documentation for this function is in its prototype declaration |
3749 | in target.h. */ | |
3750 | ||
3751 | int | |
3752 | target_ranged_break_num_registers (void) | |
3753 | { | |
a134316b | 3754 | return current_target.to_ranged_break_num_registers (¤t_target); |
f1310107 TJB |
3755 | } |
3756 | ||
02d27625 MM |
3757 | /* See target.h. */ |
3758 | ||
02d27625 MM |
3759 | struct btrace_target_info * |
3760 | target_enable_btrace (ptid_t ptid) | |
3761 | { | |
6dc7fcf4 | 3762 | return current_target.to_enable_btrace (¤t_target, ptid); |
02d27625 MM |
3763 | } |
3764 | ||
3765 | /* See target.h. */ | |
3766 | ||
3767 | void | |
3768 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3769 | { | |
8dc292d3 | 3770 | current_target.to_disable_btrace (¤t_target, btinfo); |
02d27625 MM |
3771 | } |
3772 | ||
3773 | /* See target.h. */ | |
3774 | ||
3775 | void | |
3776 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
3777 | { | |
9ace480d | 3778 | current_target.to_teardown_btrace (¤t_target, btinfo); |
02d27625 MM |
3779 | } |
3780 | ||
3781 | /* See target.h. */ | |
3782 | ||
969c39fb MM |
3783 | enum btrace_error |
3784 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
3785 | struct btrace_target_info *btinfo, | |
02d27625 MM |
3786 | enum btrace_read_type type) |
3787 | { | |
eb5b20d4 | 3788 | return current_target.to_read_btrace (¤t_target, btrace, btinfo, type); |
02d27625 MM |
3789 | } |
3790 | ||
d02ed0bb MM |
3791 | /* See target.h. */ |
3792 | ||
7c1687a9 MM |
3793 | void |
3794 | target_stop_recording (void) | |
3795 | { | |
ee97f592 | 3796 | current_target.to_stop_recording (¤t_target); |
7c1687a9 MM |
3797 | } |
3798 | ||
3799 | /* See target.h. */ | |
3800 | ||
d02ed0bb MM |
3801 | void |
3802 | target_info_record (void) | |
3803 | { | |
3804 | struct target_ops *t; | |
3805 | ||
3806 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3807 | if (t->to_info_record != NULL) | |
3808 | { | |
630d6a4a | 3809 | t->to_info_record (t); |
d02ed0bb MM |
3810 | return; |
3811 | } | |
3812 | ||
3813 | tcomplain (); | |
3814 | } | |
3815 | ||
3816 | /* See target.h. */ | |
3817 | ||
3818 | void | |
85e1311a | 3819 | target_save_record (const char *filename) |
d02ed0bb | 3820 | { |
f09e2107 | 3821 | current_target.to_save_record (¤t_target, filename); |
d02ed0bb MM |
3822 | } |
3823 | ||
3824 | /* See target.h. */ | |
3825 | ||
3826 | int | |
3827 | target_supports_delete_record (void) | |
3828 | { | |
3829 | struct target_ops *t; | |
3830 | ||
3831 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3832 | if (t->to_delete_record != NULL) | |
3833 | return 1; | |
3834 | ||
3835 | return 0; | |
3836 | } | |
3837 | ||
3838 | /* See target.h. */ | |
3839 | ||
3840 | void | |
3841 | target_delete_record (void) | |
3842 | { | |
07366925 | 3843 | current_target.to_delete_record (¤t_target); |
d02ed0bb MM |
3844 | } |
3845 | ||
3846 | /* See target.h. */ | |
3847 | ||
3848 | int | |
3849 | target_record_is_replaying (void) | |
3850 | { | |
dd2e9d25 | 3851 | return current_target.to_record_is_replaying (¤t_target); |
d02ed0bb MM |
3852 | } |
3853 | ||
3854 | /* See target.h. */ | |
3855 | ||
3856 | void | |
3857 | target_goto_record_begin (void) | |
3858 | { | |
671e76cc | 3859 | current_target.to_goto_record_begin (¤t_target); |
d02ed0bb MM |
3860 | } |
3861 | ||
3862 | /* See target.h. */ | |
3863 | ||
3864 | void | |
3865 | target_goto_record_end (void) | |
3866 | { | |
e9179bb3 | 3867 | current_target.to_goto_record_end (¤t_target); |
d02ed0bb MM |
3868 | } |
3869 | ||
3870 | /* See target.h. */ | |
3871 | ||
3872 | void | |
3873 | target_goto_record (ULONGEST insn) | |
3874 | { | |
05969c84 | 3875 | current_target.to_goto_record (¤t_target, insn); |
d02ed0bb MM |
3876 | } |
3877 | ||
67c86d06 MM |
3878 | /* See target.h. */ |
3879 | ||
3880 | void | |
3881 | target_insn_history (int size, int flags) | |
3882 | { | |
3679abfa | 3883 | current_target.to_insn_history (¤t_target, size, flags); |
67c86d06 MM |
3884 | } |
3885 | ||
3886 | /* See target.h. */ | |
3887 | ||
3888 | void | |
3889 | target_insn_history_from (ULONGEST from, int size, int flags) | |
3890 | { | |
8444ab58 | 3891 | current_target.to_insn_history_from (¤t_target, from, size, flags); |
67c86d06 MM |
3892 | } |
3893 | ||
3894 | /* See target.h. */ | |
3895 | ||
3896 | void | |
3897 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3898 | { | |
c29302cc | 3899 | current_target.to_insn_history_range (¤t_target, begin, end, flags); |
67c86d06 MM |
3900 | } |
3901 | ||
15984c13 MM |
3902 | /* See target.h. */ |
3903 | ||
3904 | void | |
3905 | target_call_history (int size, int flags) | |
3906 | { | |
170049d4 | 3907 | current_target.to_call_history (¤t_target, size, flags); |
15984c13 MM |
3908 | } |
3909 | ||
3910 | /* See target.h. */ | |
3911 | ||
3912 | void | |
3913 | target_call_history_from (ULONGEST begin, int size, int flags) | |
3914 | { | |
16fc27d6 | 3915 | current_target.to_call_history_from (¤t_target, begin, size, flags); |
15984c13 MM |
3916 | } |
3917 | ||
3918 | /* See target.h. */ | |
3919 | ||
3920 | void | |
3921 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3922 | { | |
115d9817 | 3923 | current_target.to_call_history_range (¤t_target, begin, end, flags); |
15984c13 MM |
3924 | } |
3925 | ||
c906108c | 3926 | static void |
f32dbf8c | 3927 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 3928 | { |
f32dbf8c | 3929 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 3930 | |
96baa820 | 3931 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
3932 | } |
3933 | ||
ea001bdc MM |
3934 | /* See target.h. */ |
3935 | ||
3936 | const struct frame_unwind * | |
3937 | target_get_unwinder (void) | |
3938 | { | |
3939 | struct target_ops *t; | |
3940 | ||
3941 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3942 | if (t->to_get_unwinder != NULL) | |
3943 | return t->to_get_unwinder; | |
3944 | ||
3945 | return NULL; | |
3946 | } | |
3947 | ||
3948 | /* See target.h. */ | |
3949 | ||
3950 | const struct frame_unwind * | |
3951 | target_get_tailcall_unwinder (void) | |
3952 | { | |
3953 | struct target_ops *t; | |
3954 | ||
3955 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3956 | if (t->to_get_tailcall_unwinder != NULL) | |
3957 | return t->to_get_tailcall_unwinder; | |
3958 | ||
3959 | return NULL; | |
3960 | } | |
3961 | ||
118e6252 MM |
3962 | /* See target.h. */ |
3963 | ||
3964 | CORE_ADDR | |
3965 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
3966 | struct gdbarch *gdbarch) | |
3967 | { | |
3968 | for (; ops != NULL; ops = ops->beneath) | |
3969 | if (ops->to_decr_pc_after_break != NULL) | |
3970 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
3971 | ||
3972 | return gdbarch_decr_pc_after_break (gdbarch); | |
3973 | } | |
3974 | ||
3975 | /* See target.h. */ | |
3976 | ||
3977 | CORE_ADDR | |
3978 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
3979 | { | |
3980 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
3981 | } | |
3982 | ||
c906108c | 3983 | static int |
961cb7b5 | 3984 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
3985 | int write, struct mem_attrib *attrib, |
3986 | struct target_ops *target) | |
c906108c SS |
3987 | { |
3988 | int retval; | |
3989 | ||
c8e73a31 AC |
3990 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
3991 | attrib, target); | |
c906108c | 3992 | |
96baa820 | 3993 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 3994 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 3995 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 3996 | write ? "write" : "read", retval); |
c906108c | 3997 | |
c906108c SS |
3998 | if (retval > 0) |
3999 | { | |
4000 | int i; | |
4001 | ||
96baa820 | 4002 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4003 | for (i = 0; i < retval; i++) |
4004 | { | |
53b71562 | 4005 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4006 | { |
4007 | if (targetdebug < 2 && i > 0) | |
4008 | { | |
4009 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4010 | break; | |
4011 | } | |
4012 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4013 | } | |
2bc416ba | 4014 | |
96baa820 | 4015 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4016 | } |
4017 | } | |
4018 | ||
96baa820 | 4019 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4020 | |
4021 | return retval; | |
4022 | } | |
4023 | ||
4024 | static void | |
fba45db2 | 4025 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4026 | { |
4027 | debug_target.to_files_info (target); | |
4028 | ||
96baa820 | 4029 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4030 | } |
4031 | ||
4032 | static int | |
3db08215 | 4033 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4034 | struct bp_target_info *bp_tgt) |
c906108c SS |
4035 | { |
4036 | int retval; | |
4037 | ||
6b84065d | 4038 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4039 | |
96baa820 | 4040 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4041 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4042 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4043 | (unsigned long) retval); |
c906108c SS |
4044 | return retval; |
4045 | } | |
4046 | ||
4047 | static int | |
3db08215 | 4048 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4049 | struct bp_target_info *bp_tgt) |
c906108c SS |
4050 | { |
4051 | int retval; | |
4052 | ||
6b84065d | 4053 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4054 | |
96baa820 | 4055 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4056 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4057 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4058 | (unsigned long) retval); |
c906108c SS |
4059 | return retval; |
4060 | } | |
4061 | ||
ccaa32c7 | 4062 | static int |
5461485a TT |
4063 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4064 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4065 | { |
4066 | int retval; | |
4067 | ||
5461485a TT |
4068 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4069 | type, cnt, from_tty); | |
ccaa32c7 GS |
4070 | |
4071 | fprintf_unfiltered (gdb_stdlog, | |
4072 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4073 | (unsigned long) type, | |
4074 | (unsigned long) cnt, | |
4075 | (unsigned long) from_tty, | |
4076 | (unsigned long) retval); | |
4077 | return retval; | |
4078 | } | |
4079 | ||
e0d24f8d | 4080 | static int |
31568a15 TT |
4081 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4082 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4083 | { |
4084 | CORE_ADDR retval; | |
4085 | ||
31568a15 TT |
4086 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4087 | addr, len); | |
e0d24f8d WZ |
4088 | |
4089 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4090 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4091 | core_addr_to_string (addr), (unsigned long) len, | |
4092 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4093 | return retval; |
4094 | } | |
4095 | ||
0cf6dd15 | 4096 | static int |
c3a5ff89 TT |
4097 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4098 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4099 | struct expression *cond) |
4100 | { | |
4101 | int retval; | |
4102 | ||
c3a5ff89 TT |
4103 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4104 | addr, len, | |
3e43a32a | 4105 | rw, cond); |
0cf6dd15 TJB |
4106 | |
4107 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4108 | "target_can_accel_watchpoint_condition " |
4109 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4110 | core_addr_to_string (addr), len, rw, |
4111 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4112 | return retval; |
4113 | } | |
4114 | ||
ccaa32c7 | 4115 | static int |
6a109b6b | 4116 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4117 | { |
4118 | int retval; | |
4119 | ||
6a109b6b | 4120 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4121 | |
4122 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4123 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4124 | (unsigned long) retval); |
4125 | return retval; | |
4126 | } | |
4127 | ||
4aa7a7f5 JJ |
4128 | static int |
4129 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4130 | { |
4aa7a7f5 | 4131 | int retval; |
ccaa32c7 | 4132 | |
4aa7a7f5 | 4133 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4134 | |
4135 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4136 | "target_stopped_data_address ([%s]) = %ld\n", |
4137 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4138 | (unsigned long)retval); |
ccaa32c7 GS |
4139 | return retval; |
4140 | } | |
4141 | ||
5009afc5 AS |
4142 | static int |
4143 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4144 | CORE_ADDR addr, | |
4145 | CORE_ADDR start, int length) | |
4146 | { | |
4147 | int retval; | |
4148 | ||
4149 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4150 | start, length); | |
4151 | ||
4152 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4153 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4154 | core_addr_to_string (addr), core_addr_to_string (start), | |
4155 | length, retval); | |
5009afc5 AS |
4156 | return retval; |
4157 | } | |
4158 | ||
ccaa32c7 | 4159 | static int |
23a26771 TT |
4160 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4161 | struct gdbarch *gdbarch, | |
a6d9a66e | 4162 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4163 | { |
4164 | int retval; | |
4165 | ||
23a26771 TT |
4166 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4167 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4168 | |
4169 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4170 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4171 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4172 | (unsigned long) retval); |
4173 | return retval; | |
4174 | } | |
4175 | ||
4176 | static int | |
a64dc96c TT |
4177 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4178 | struct gdbarch *gdbarch, | |
a6d9a66e | 4179 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4180 | { |
4181 | int retval; | |
4182 | ||
a64dc96c TT |
4183 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4184 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4185 | |
4186 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4187 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4188 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4189 | (unsigned long) retval); |
4190 | return retval; | |
4191 | } | |
4192 | ||
4193 | static int | |
7bb99c53 TT |
4194 | debug_to_insert_watchpoint (struct target_ops *self, |
4195 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4196 | struct expression *cond) |
ccaa32c7 GS |
4197 | { |
4198 | int retval; | |
4199 | ||
7bb99c53 TT |
4200 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4201 | addr, len, type, cond); | |
ccaa32c7 GS |
4202 | |
4203 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4204 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4205 | core_addr_to_string (addr), len, type, | |
4206 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4207 | return retval; |
4208 | } | |
4209 | ||
4210 | static int | |
11b5219a TT |
4211 | debug_to_remove_watchpoint (struct target_ops *self, |
4212 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4213 | struct expression *cond) |
ccaa32c7 GS |
4214 | { |
4215 | int retval; | |
4216 | ||
11b5219a TT |
4217 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4218 | addr, len, type, cond); | |
ccaa32c7 GS |
4219 | |
4220 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4221 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4222 | core_addr_to_string (addr), len, type, | |
4223 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4224 | return retval; |
4225 | } | |
4226 | ||
c906108c | 4227 | static void |
c42bf286 | 4228 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4229 | { |
c42bf286 | 4230 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4231 | |
96baa820 | 4232 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4233 | } |
4234 | ||
4235 | static void | |
d2f640d4 | 4236 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4237 | { |
d2f640d4 | 4238 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4239 | |
96baa820 | 4240 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4241 | } |
4242 | ||
4243 | static void | |
2e1e1a19 | 4244 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4245 | { |
2e1e1a19 | 4246 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4247 | |
96baa820 | 4248 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4249 | } |
4250 | ||
4251 | static void | |
e3594fd1 | 4252 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4253 | { |
e3594fd1 | 4254 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4255 | |
96baa820 | 4256 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4257 | } |
4258 | ||
a790ad35 | 4259 | static void |
ae3bd431 | 4260 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4261 | { |
ae3bd431 | 4262 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4263 | |
4264 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4265 | } | |
4266 | ||
c906108c | 4267 | static void |
0a4f40a2 TT |
4268 | debug_to_terminal_info (struct target_ops *self, |
4269 | const char *arg, int from_tty) | |
c906108c | 4270 | { |
0a4f40a2 | 4271 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4272 | |
96baa820 | 4273 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4274 | from_tty); |
4275 | } | |
4276 | ||
c906108c | 4277 | static void |
71a9f134 | 4278 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4279 | { |
71a9f134 | 4280 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4281 | |
96baa820 | 4282 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4283 | } |
4284 | ||
c906108c | 4285 | static void |
2e97a79e | 4286 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4287 | { |
2e97a79e | 4288 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4289 | |
96baa820 | 4290 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4291 | ptid_get_pid (ptid)); |
c906108c SS |
4292 | } |
4293 | ||
77b06cd7 | 4294 | static int |
a863b201 | 4295 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4296 | { |
77b06cd7 TJB |
4297 | int retval; |
4298 | ||
a863b201 | 4299 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4300 | |
4301 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4302 | pid, retval); | |
c906108c | 4303 | |
77b06cd7 | 4304 | return retval; |
c906108c SS |
4305 | } |
4306 | ||
4307 | static int | |
973fc227 | 4308 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4309 | { |
c5aa993b | 4310 | int retval; |
c906108c | 4311 | |
973fc227 | 4312 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4313 | |
96baa820 | 4314 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4315 | pid, retval); |
c906108c SS |
4316 | |
4317 | return retval; | |
4318 | } | |
4319 | ||
77b06cd7 | 4320 | static int |
3ecc7da0 | 4321 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4322 | { |
77b06cd7 TJB |
4323 | int retval; |
4324 | ||
3ecc7da0 | 4325 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4326 | |
77b06cd7 TJB |
4327 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4328 | pid, retval); | |
4329 | ||
4330 | return retval; | |
c906108c SS |
4331 | } |
4332 | ||
4333 | static int | |
e98cf0cd | 4334 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4335 | { |
c5aa993b | 4336 | int retval; |
c906108c | 4337 | |
e98cf0cd | 4338 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4339 | |
96baa820 | 4340 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4341 | pid, retval); |
c906108c SS |
4342 | |
4343 | return retval; | |
4344 | } | |
4345 | ||
77b06cd7 | 4346 | static int |
ba025e51 | 4347 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4348 | { |
77b06cd7 TJB |
4349 | int retval; |
4350 | ||
ba025e51 | 4351 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4352 | |
77b06cd7 TJB |
4353 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4354 | pid, retval); | |
4355 | ||
4356 | return retval; | |
c906108c SS |
4357 | } |
4358 | ||
4359 | static int | |
758e29d2 | 4360 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4361 | { |
c5aa993b | 4362 | int retval; |
c906108c | 4363 | |
758e29d2 | 4364 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4365 | |
96baa820 | 4366 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4367 | pid, retval); |
c906108c SS |
4368 | |
4369 | return retval; | |
4370 | } | |
4371 | ||
c906108c | 4372 | static int |
d796e1d6 TT |
4373 | debug_to_has_exited (struct target_ops *self, |
4374 | int pid, int wait_status, int *exit_status) | |
c906108c | 4375 | { |
c5aa993b | 4376 | int has_exited; |
c906108c | 4377 | |
d796e1d6 TT |
4378 | has_exited = debug_target.to_has_exited (&debug_target, |
4379 | pid, wait_status, exit_status); | |
c906108c | 4380 | |
96baa820 | 4381 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4382 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4383 | |
4384 | return has_exited; | |
4385 | } | |
4386 | ||
c906108c | 4387 | static int |
da82bd6b | 4388 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4389 | { |
4390 | int retval; | |
4391 | ||
da82bd6b | 4392 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4393 | |
96baa820 | 4394 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4395 | |
4396 | return retval; | |
4397 | } | |
4398 | ||
c2250ad1 UW |
4399 | static struct gdbarch * |
4400 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4401 | { | |
4402 | struct gdbarch *retval; | |
4403 | ||
4404 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4405 | ||
3e43a32a MS |
4406 | fprintf_unfiltered (gdb_stdlog, |
4407 | "target_thread_architecture (%s) = %s [%s]\n", | |
4408 | target_pid_to_str (ptid), | |
4409 | host_address_to_string (retval), | |
c2250ad1 UW |
4410 | gdbarch_bfd_arch_info (retval)->printable_name); |
4411 | return retval; | |
4412 | } | |
4413 | ||
c906108c | 4414 | static void |
1eab8a48 | 4415 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4416 | { |
1eab8a48 | 4417 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4418 | |
94cc34af PA |
4419 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4420 | target_pid_to_str (ptid)); | |
c906108c SS |
4421 | } |
4422 | ||
96baa820 | 4423 | static void |
1aac633b | 4424 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4425 | struct ui_file *outbuf) |
96baa820 | 4426 | { |
1aac633b | 4427 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4428 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4429 | } | |
4430 | ||
c906108c | 4431 | static char * |
8dd27370 | 4432 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4433 | { |
c5aa993b | 4434 | char *exec_file; |
c906108c | 4435 | |
8dd27370 | 4436 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4437 | |
96baa820 | 4438 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4439 | pid, exec_file); |
c906108c SS |
4440 | |
4441 | return exec_file; | |
4442 | } | |
4443 | ||
c906108c | 4444 | static void |
fba45db2 | 4445 | setup_target_debug (void) |
c906108c SS |
4446 | { |
4447 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4448 | ||
4449 | current_target.to_open = debug_to_open; | |
c906108c | 4450 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4451 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4452 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4453 | current_target.to_files_info = debug_to_files_info; |
4454 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4455 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4456 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4457 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4458 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4459 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4460 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4461 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4462 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4463 | current_target.to_watchpoint_addr_within_range |
4464 | = debug_to_watchpoint_addr_within_range; | |
4465 | current_target.to_region_ok_for_hw_watchpoint | |
4466 | = debug_to_region_ok_for_hw_watchpoint; | |
4467 | current_target.to_can_accel_watchpoint_condition | |
4468 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4469 | current_target.to_terminal_init = debug_to_terminal_init; |
4470 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4471 | current_target.to_terminal_ours_for_output |
4472 | = debug_to_terminal_ours_for_output; | |
c906108c | 4473 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4474 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4475 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4476 | current_target.to_load = debug_to_load; |
c906108c | 4477 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4478 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4479 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4480 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4481 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4482 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4483 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4484 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4485 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4486 | current_target.to_stop = debug_to_stop; |
96baa820 | 4487 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4488 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4489 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4490 | } |
c906108c | 4491 | \f |
c5aa993b JM |
4492 | |
4493 | static char targ_desc[] = | |
3e43a32a MS |
4494 | "Names of targets and files being debugged.\nShows the entire \ |
4495 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4496 | core-file, and process, if any), as well as the symbol file name."; |
4497 | ||
a53f3625 TT |
4498 | static void |
4499 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4500 | { | |
4501 | error (_("\"monitor\" command not supported by this target.")); | |
4502 | } | |
4503 | ||
96baa820 JM |
4504 | static void |
4505 | do_monitor_command (char *cmd, | |
4506 | int from_tty) | |
4507 | { | |
96baa820 JM |
4508 | target_rcmd (cmd, gdb_stdtarg); |
4509 | } | |
4510 | ||
87680a14 JB |
4511 | /* Print the name of each layers of our target stack. */ |
4512 | ||
4513 | static void | |
4514 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4515 | { | |
4516 | struct target_ops *t; | |
4517 | ||
4518 | printf_filtered (_("The current target stack is:\n")); | |
4519 | ||
4520 | for (t = target_stack; t != NULL; t = t->beneath) | |
4521 | { | |
4522 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4523 | } | |
4524 | } | |
4525 | ||
c6ebd6cf VP |
4526 | /* Controls if async mode is permitted. */ |
4527 | int target_async_permitted = 0; | |
4528 | ||
4529 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4530 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4531 | static int target_async_permitted_1 = 0; |
4532 | ||
4533 | static void | |
9401a810 PA |
4534 | set_target_async_command (char *args, int from_tty, |
4535 | struct cmd_list_element *c) | |
c6ebd6cf | 4536 | { |
c35b1492 | 4537 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4538 | { |
4539 | target_async_permitted_1 = target_async_permitted; | |
4540 | error (_("Cannot change this setting while the inferior is running.")); | |
4541 | } | |
4542 | ||
4543 | target_async_permitted = target_async_permitted_1; | |
4544 | } | |
4545 | ||
4546 | static void | |
9401a810 PA |
4547 | show_target_async_command (struct ui_file *file, int from_tty, |
4548 | struct cmd_list_element *c, | |
4549 | const char *value) | |
c6ebd6cf | 4550 | { |
3e43a32a MS |
4551 | fprintf_filtered (file, |
4552 | _("Controlling the inferior in " | |
4553 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4554 | } |
4555 | ||
d914c394 SS |
4556 | /* Temporary copies of permission settings. */ |
4557 | ||
4558 | static int may_write_registers_1 = 1; | |
4559 | static int may_write_memory_1 = 1; | |
4560 | static int may_insert_breakpoints_1 = 1; | |
4561 | static int may_insert_tracepoints_1 = 1; | |
4562 | static int may_insert_fast_tracepoints_1 = 1; | |
4563 | static int may_stop_1 = 1; | |
4564 | ||
4565 | /* Make the user-set values match the real values again. */ | |
4566 | ||
4567 | void | |
4568 | update_target_permissions (void) | |
4569 | { | |
4570 | may_write_registers_1 = may_write_registers; | |
4571 | may_write_memory_1 = may_write_memory; | |
4572 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4573 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4574 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4575 | may_stop_1 = may_stop; | |
4576 | } | |
4577 | ||
4578 | /* The one function handles (most of) the permission flags in the same | |
4579 | way. */ | |
4580 | ||
4581 | static void | |
4582 | set_target_permissions (char *args, int from_tty, | |
4583 | struct cmd_list_element *c) | |
4584 | { | |
4585 | if (target_has_execution) | |
4586 | { | |
4587 | update_target_permissions (); | |
4588 | error (_("Cannot change this setting while the inferior is running.")); | |
4589 | } | |
4590 | ||
4591 | /* Make the real values match the user-changed values. */ | |
4592 | may_write_registers = may_write_registers_1; | |
4593 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4594 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4595 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4596 | may_stop = may_stop_1; | |
4597 | update_observer_mode (); | |
4598 | } | |
4599 | ||
4600 | /* Set memory write permission independently of observer mode. */ | |
4601 | ||
4602 | static void | |
4603 | set_write_memory_permission (char *args, int from_tty, | |
4604 | struct cmd_list_element *c) | |
4605 | { | |
4606 | /* Make the real values match the user-changed values. */ | |
4607 | may_write_memory = may_write_memory_1; | |
4608 | update_observer_mode (); | |
4609 | } | |
4610 | ||
4611 | ||
c906108c | 4612 | void |
fba45db2 | 4613 | initialize_targets (void) |
c906108c SS |
4614 | { |
4615 | init_dummy_target (); | |
4616 | push_target (&dummy_target); | |
4617 | ||
4618 | add_info ("target", target_info, targ_desc); | |
4619 | add_info ("files", target_info, targ_desc); | |
4620 | ||
ccce17b0 | 4621 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4622 | Set target debugging."), _("\ |
4623 | Show target debugging."), _("\ | |
333dabeb DJ |
4624 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4625 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4626 | command."), |
ccce17b0 YQ |
4627 | NULL, |
4628 | show_targetdebug, | |
4629 | &setdebuglist, &showdebuglist); | |
3a11626d | 4630 | |
2bc416ba | 4631 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4632 | &trust_readonly, _("\ |
4633 | Set mode for reading from readonly sections."), _("\ | |
4634 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4635 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4636 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4637 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4638 | NULL, |
920d2a44 | 4639 | show_trust_readonly, |
e707bbc2 | 4640 | &setlist, &showlist); |
96baa820 JM |
4641 | |
4642 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4643 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4644 | |
87680a14 JB |
4645 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4646 | _("Print the name of each layer of the internal target stack."), | |
4647 | &maintenanceprintlist); | |
4648 | ||
c6ebd6cf VP |
4649 | add_setshow_boolean_cmd ("target-async", no_class, |
4650 | &target_async_permitted_1, _("\ | |
4651 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4652 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4653 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
4654 | set_target_async_command, |
4655 | show_target_async_command, | |
c6ebd6cf VP |
4656 | &setlist, |
4657 | &showlist); | |
4658 | ||
d914c394 SS |
4659 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4660 | &may_write_registers_1, _("\ | |
4661 | Set permission to write into registers."), _("\ | |
4662 | Show permission to write into registers."), _("\ | |
4663 | When this permission is on, GDB may write into the target's registers.\n\ | |
4664 | Otherwise, any sort of write attempt will result in an error."), | |
4665 | set_target_permissions, NULL, | |
4666 | &setlist, &showlist); | |
4667 | ||
4668 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4669 | &may_write_memory_1, _("\ | |
4670 | Set permission to write into target memory."), _("\ | |
4671 | Show permission to write into target memory."), _("\ | |
4672 | When this permission is on, GDB may write into the target's memory.\n\ | |
4673 | Otherwise, any sort of write attempt will result in an error."), | |
4674 | set_write_memory_permission, NULL, | |
4675 | &setlist, &showlist); | |
4676 | ||
4677 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4678 | &may_insert_breakpoints_1, _("\ | |
4679 | Set permission to insert breakpoints in the target."), _("\ | |
4680 | Show permission to insert breakpoints in the target."), _("\ | |
4681 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4682 | Otherwise, any sort of insertion attempt will result in an error."), | |
4683 | set_target_permissions, NULL, | |
4684 | &setlist, &showlist); | |
4685 | ||
4686 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4687 | &may_insert_tracepoints_1, _("\ | |
4688 | Set permission to insert tracepoints in the target."), _("\ | |
4689 | Show permission to insert tracepoints in the target."), _("\ | |
4690 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4691 | Otherwise, any sort of insertion attempt will result in an error."), | |
4692 | set_target_permissions, NULL, | |
4693 | &setlist, &showlist); | |
4694 | ||
4695 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4696 | &may_insert_fast_tracepoints_1, _("\ | |
4697 | Set permission to insert fast tracepoints in the target."), _("\ | |
4698 | Show permission to insert fast tracepoints in the target."), _("\ | |
4699 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4700 | Otherwise, any sort of insertion attempt will result in an error."), | |
4701 | set_target_permissions, NULL, | |
4702 | &setlist, &showlist); | |
4703 | ||
4704 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4705 | &may_stop_1, _("\ | |
4706 | Set permission to interrupt or signal the target."), _("\ | |
4707 | Show permission to interrupt or signal the target."), _("\ | |
4708 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4709 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4710 | set_target_permissions, NULL, | |
4711 | &setlist, &showlist); | |
c906108c | 4712 | } |