Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1990-2014 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <errno.h> | |
0e9f083f | 24 | #include <string.h> |
c906108c | 25 | #include "target.h" |
68c765e2 | 26 | #include "target-dcache.h" |
c906108c SS |
27 | #include "gdbcmd.h" |
28 | #include "symtab.h" | |
29 | #include "inferior.h" | |
30 | #include "bfd.h" | |
31 | #include "symfile.h" | |
32 | #include "objfiles.h" | |
4930751a | 33 | #include "dcache.h" |
c906108c | 34 | #include <signal.h> |
4e052eda | 35 | #include "regcache.h" |
0088c768 | 36 | #include "gdb_assert.h" |
b6591e8b | 37 | #include "gdbcore.h" |
9e35dae4 | 38 | #include "exceptions.h" |
424163ea | 39 | #include "target-descriptions.h" |
e1ac3328 | 40 | #include "gdbthread.h" |
b9db4ced | 41 | #include "solib.h" |
07b82ea5 | 42 | #include "exec.h" |
edb3359d | 43 | #include "inline-frame.h" |
2f4d8875 | 44 | #include "tracepoint.h" |
7313baad | 45 | #include "gdb/fileio.h" |
8ffcbaaf | 46 | #include "agent.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
0a4f40a2 | 50 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
31568a15 TT |
55 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
56 | CORE_ADDR, int); | |
e0d24f8d | 57 | |
a53f3625 TT |
58 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
59 | ||
4229b31d TT |
60 | static ptid_t default_get_ada_task_ptid (struct target_ops *self, |
61 | long lwp, long tid); | |
62 | ||
c25c4a8b | 63 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 64 | |
a14ed312 | 65 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 66 | |
a14ed312 | 67 | static int return_zero (void); |
c906108c | 68 | |
1b67eb02 AS |
69 | static void *return_null (void); |
70 | ||
a14ed312 | 71 | void target_ignore (void); |
c906108c | 72 | |
a14ed312 | 73 | static void target_command (char *, int); |
c906108c | 74 | |
a14ed312 | 75 | static struct target_ops *find_default_run_target (char *); |
c906108c | 76 | |
4ac248ca YQ |
77 | static target_xfer_partial_ftype default_xfer_partial; |
78 | ||
c2250ad1 UW |
79 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
80 | ptid_t ptid); | |
81 | ||
0b5a2719 TT |
82 | static int dummy_find_memory_regions (struct target_ops *self, |
83 | find_memory_region_ftype ignore1, | |
84 | void *ignore2); | |
85 | ||
16f796b1 TT |
86 | static char *dummy_make_corefile_notes (struct target_ops *self, |
87 | bfd *ignore1, int *ignore2); | |
88 | ||
6b84065d TT |
89 | static int find_default_can_async_p (struct target_ops *ignore); |
90 | ||
91 | static int find_default_is_async_p (struct target_ops *ignore); | |
92 | ||
fe31bf5b TT |
93 | static enum exec_direction_kind default_execution_direction |
94 | (struct target_ops *self); | |
95 | ||
1101cb7b TT |
96 | #include "target-delegates.c" |
97 | ||
a14ed312 | 98 | static void init_dummy_target (void); |
c906108c | 99 | |
aa869812 AC |
100 | static struct target_ops debug_target; |
101 | ||
a14ed312 | 102 | static void debug_to_open (char *, int); |
c906108c | 103 | |
f32dbf8c MM |
104 | static void debug_to_prepare_to_store (struct target_ops *self, |
105 | struct regcache *); | |
c906108c | 106 | |
a14ed312 | 107 | static void debug_to_files_info (struct target_ops *); |
c906108c | 108 | |
3db08215 | 109 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 110 | struct bp_target_info *); |
c906108c | 111 | |
3db08215 | 112 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 113 | struct bp_target_info *); |
c906108c | 114 | |
5461485a TT |
115 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
116 | int, int, int); | |
ccaa32c7 | 117 | |
23a26771 TT |
118 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
119 | struct gdbarch *, | |
a6d9a66e | 120 | struct bp_target_info *); |
ccaa32c7 | 121 | |
a64dc96c TT |
122 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
123 | struct gdbarch *, | |
a6d9a66e | 124 | struct bp_target_info *); |
ccaa32c7 | 125 | |
7bb99c53 TT |
126 | static int debug_to_insert_watchpoint (struct target_ops *self, |
127 | CORE_ADDR, int, int, | |
0cf6dd15 | 128 | struct expression *); |
ccaa32c7 | 129 | |
11b5219a TT |
130 | static int debug_to_remove_watchpoint (struct target_ops *self, |
131 | CORE_ADDR, int, int, | |
0cf6dd15 | 132 | struct expression *); |
ccaa32c7 | 133 | |
4aa7a7f5 | 134 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 135 | |
5009afc5 AS |
136 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
137 | CORE_ADDR, CORE_ADDR, int); | |
138 | ||
31568a15 TT |
139 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
140 | CORE_ADDR, int); | |
e0d24f8d | 141 | |
c3a5ff89 TT |
142 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
143 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
144 | struct expression *); |
145 | ||
c42bf286 | 146 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 147 | |
d2f640d4 | 148 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 149 | |
2e1e1a19 | 150 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 151 | |
ae3bd431 | 152 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 153 | |
e3594fd1 | 154 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 155 | |
71a9f134 | 156 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 157 | |
da82bd6b | 158 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 159 | |
1eab8a48 | 160 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 161 | |
c906108c | 162 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 163 | array; the current index into the array; the allocated size of the |
c906108c SS |
164 | array. */ |
165 | struct target_ops **target_structs; | |
166 | unsigned target_struct_size; | |
c906108c SS |
167 | unsigned target_struct_allocsize; |
168 | #define DEFAULT_ALLOCSIZE 10 | |
169 | ||
170 | /* The initial current target, so that there is always a semi-valid | |
171 | current target. */ | |
172 | ||
173 | static struct target_ops dummy_target; | |
174 | ||
175 | /* Top of target stack. */ | |
176 | ||
258b763a | 177 | static struct target_ops *target_stack; |
c906108c SS |
178 | |
179 | /* The target structure we are currently using to talk to a process | |
180 | or file or whatever "inferior" we have. */ | |
181 | ||
182 | struct target_ops current_target; | |
183 | ||
184 | /* Command list for target. */ | |
185 | ||
186 | static struct cmd_list_element *targetlist = NULL; | |
187 | ||
cf7a04e8 DJ |
188 | /* Nonzero if we should trust readonly sections from the |
189 | executable when reading memory. */ | |
190 | ||
191 | static int trust_readonly = 0; | |
192 | ||
8defab1a DJ |
193 | /* Nonzero if we should show true memory content including |
194 | memory breakpoint inserted by gdb. */ | |
195 | ||
196 | static int show_memory_breakpoints = 0; | |
197 | ||
d914c394 SS |
198 | /* These globals control whether GDB attempts to perform these |
199 | operations; they are useful for targets that need to prevent | |
200 | inadvertant disruption, such as in non-stop mode. */ | |
201 | ||
202 | int may_write_registers = 1; | |
203 | ||
204 | int may_write_memory = 1; | |
205 | ||
206 | int may_insert_breakpoints = 1; | |
207 | ||
208 | int may_insert_tracepoints = 1; | |
209 | ||
210 | int may_insert_fast_tracepoints = 1; | |
211 | ||
212 | int may_stop = 1; | |
213 | ||
c906108c SS |
214 | /* Non-zero if we want to see trace of target level stuff. */ |
215 | ||
ccce17b0 | 216 | static unsigned int targetdebug = 0; |
920d2a44 AC |
217 | static void |
218 | show_targetdebug (struct ui_file *file, int from_tty, | |
219 | struct cmd_list_element *c, const char *value) | |
220 | { | |
221 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
222 | } | |
c906108c | 223 | |
a14ed312 | 224 | static void setup_target_debug (void); |
c906108c | 225 | |
c906108c SS |
226 | /* The user just typed 'target' without the name of a target. */ |
227 | ||
c906108c | 228 | static void |
fba45db2 | 229 | target_command (char *arg, int from_tty) |
c906108c SS |
230 | { |
231 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
232 | gdb_stdout); | |
233 | } | |
234 | ||
c35b1492 PA |
235 | /* Default target_has_* methods for process_stratum targets. */ |
236 | ||
237 | int | |
238 | default_child_has_all_memory (struct target_ops *ops) | |
239 | { | |
240 | /* If no inferior selected, then we can't read memory here. */ | |
241 | if (ptid_equal (inferior_ptid, null_ptid)) | |
242 | return 0; | |
243 | ||
244 | return 1; | |
245 | } | |
246 | ||
247 | int | |
248 | default_child_has_memory (struct target_ops *ops) | |
249 | { | |
250 | /* If no inferior selected, then we can't read memory here. */ | |
251 | if (ptid_equal (inferior_ptid, null_ptid)) | |
252 | return 0; | |
253 | ||
254 | return 1; | |
255 | } | |
256 | ||
257 | int | |
258 | default_child_has_stack (struct target_ops *ops) | |
259 | { | |
260 | /* If no inferior selected, there's no stack. */ | |
261 | if (ptid_equal (inferior_ptid, null_ptid)) | |
262 | return 0; | |
263 | ||
264 | return 1; | |
265 | } | |
266 | ||
267 | int | |
268 | default_child_has_registers (struct target_ops *ops) | |
269 | { | |
270 | /* Can't read registers from no inferior. */ | |
271 | if (ptid_equal (inferior_ptid, null_ptid)) | |
272 | return 0; | |
273 | ||
274 | return 1; | |
275 | } | |
276 | ||
277 | int | |
aeaec162 | 278 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
279 | { |
280 | /* If there's no thread selected, then we can't make it run through | |
281 | hoops. */ | |
aeaec162 | 282 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
283 | return 0; |
284 | ||
285 | return 1; | |
286 | } | |
287 | ||
288 | ||
289 | int | |
290 | target_has_all_memory_1 (void) | |
291 | { | |
292 | struct target_ops *t; | |
293 | ||
294 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
295 | if (t->to_has_all_memory (t)) | |
296 | return 1; | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | int | |
302 | target_has_memory_1 (void) | |
303 | { | |
304 | struct target_ops *t; | |
305 | ||
306 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
307 | if (t->to_has_memory (t)) | |
308 | return 1; | |
309 | ||
310 | return 0; | |
311 | } | |
312 | ||
313 | int | |
314 | target_has_stack_1 (void) | |
315 | { | |
316 | struct target_ops *t; | |
317 | ||
318 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
319 | if (t->to_has_stack (t)) | |
320 | return 1; | |
321 | ||
322 | return 0; | |
323 | } | |
324 | ||
325 | int | |
326 | target_has_registers_1 (void) | |
327 | { | |
328 | struct target_ops *t; | |
329 | ||
330 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
331 | if (t->to_has_registers (t)) | |
332 | return 1; | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
337 | int | |
aeaec162 | 338 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
339 | { |
340 | struct target_ops *t; | |
341 | ||
342 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 343 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
344 | return 1; |
345 | ||
346 | return 0; | |
347 | } | |
348 | ||
aeaec162 TT |
349 | int |
350 | target_has_execution_current (void) | |
351 | { | |
352 | return target_has_execution_1 (inferior_ptid); | |
353 | } | |
354 | ||
c22a2b88 TT |
355 | /* Complete initialization of T. This ensures that various fields in |
356 | T are set, if needed by the target implementation. */ | |
c906108c SS |
357 | |
358 | void | |
c22a2b88 | 359 | complete_target_initialization (struct target_ops *t) |
c906108c | 360 | { |
0088c768 | 361 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
362 | if (t->to_xfer_partial == NULL) |
363 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 364 | |
c35b1492 PA |
365 | if (t->to_has_all_memory == NULL) |
366 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
367 | ||
368 | if (t->to_has_memory == NULL) | |
369 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
370 | ||
371 | if (t->to_has_stack == NULL) | |
372 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
373 | ||
374 | if (t->to_has_registers == NULL) | |
375 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
376 | ||
377 | if (t->to_has_execution == NULL) | |
aeaec162 | 378 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
379 | |
380 | install_delegators (t); | |
c22a2b88 TT |
381 | } |
382 | ||
383 | /* Add possible target architecture T to the list and add a new | |
384 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
385 | completer if not NULL. */ | |
386 | ||
387 | void | |
388 | add_target_with_completer (struct target_ops *t, | |
389 | completer_ftype *completer) | |
390 | { | |
391 | struct cmd_list_element *c; | |
392 | ||
393 | complete_target_initialization (t); | |
c35b1492 | 394 | |
c906108c SS |
395 | if (!target_structs) |
396 | { | |
397 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
398 | target_structs = (struct target_ops **) xmalloc | |
399 | (target_struct_allocsize * sizeof (*target_structs)); | |
400 | } | |
401 | if (target_struct_size >= target_struct_allocsize) | |
402 | { | |
403 | target_struct_allocsize *= 2; | |
404 | target_structs = (struct target_ops **) | |
c5aa993b JM |
405 | xrealloc ((char *) target_structs, |
406 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
407 | } |
408 | target_structs[target_struct_size++] = t; | |
c906108c SS |
409 | |
410 | if (targetlist == NULL) | |
1bedd215 AC |
411 | add_prefix_cmd ("target", class_run, target_command, _("\ |
412 | Connect to a target machine or process.\n\ | |
c906108c SS |
413 | The first argument is the type or protocol of the target machine.\n\ |
414 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
415 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 416 | `help target ' followed by the protocol name."), |
c906108c | 417 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
418 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
419 | &targetlist); | |
420 | if (completer != NULL) | |
421 | set_cmd_completer (c, completer); | |
422 | } | |
423 | ||
424 | /* Add a possible target architecture to the list. */ | |
425 | ||
426 | void | |
427 | add_target (struct target_ops *t) | |
428 | { | |
429 | add_target_with_completer (t, NULL); | |
c906108c SS |
430 | } |
431 | ||
b48d48eb MM |
432 | /* See target.h. */ |
433 | ||
434 | void | |
435 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
436 | { | |
437 | struct cmd_list_element *c; | |
438 | char *alt; | |
439 | ||
440 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
441 | see PR cli/15104. */ | |
442 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
443 | alt = xstrprintf ("target %s", t->to_shortname); | |
444 | deprecate_cmd (c, alt); | |
445 | } | |
446 | ||
c906108c SS |
447 | /* Stub functions */ |
448 | ||
449 | void | |
fba45db2 | 450 | target_ignore (void) |
c906108c SS |
451 | { |
452 | } | |
453 | ||
7d85a9c0 JB |
454 | void |
455 | target_kill (void) | |
456 | { | |
457 | struct target_ops *t; | |
458 | ||
459 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
460 | if (t->to_kill != NULL) | |
461 | { | |
462 | if (targetdebug) | |
463 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
464 | ||
465 | t->to_kill (t); | |
466 | return; | |
467 | } | |
468 | ||
469 | noprocess (); | |
470 | } | |
471 | ||
11cf8741 JM |
472 | void |
473 | target_load (char *arg, int from_tty) | |
474 | { | |
4e5d721f | 475 | target_dcache_invalidate (); |
71a9f134 | 476 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
477 | } |
478 | ||
947b8855 PA |
479 | void |
480 | target_create_inferior (char *exec_file, char *args, | |
481 | char **env, int from_tty) | |
136d6dae VP |
482 | { |
483 | struct target_ops *t; | |
5d502164 | 484 | |
136d6dae VP |
485 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
486 | { | |
487 | if (t->to_create_inferior != NULL) | |
488 | { | |
489 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
490 | if (targetdebug) |
491 | fprintf_unfiltered (gdb_stdlog, | |
492 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
493 | exec_file, args, from_tty); | |
136d6dae VP |
494 | return; |
495 | } | |
496 | } | |
497 | ||
498 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 499 | _("could not find a target to create inferior")); |
136d6dae VP |
500 | } |
501 | ||
d9d2d8b6 PA |
502 | void |
503 | target_terminal_inferior (void) | |
504 | { | |
505 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 506 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
507 | this point the target is not async yet. However, if sync_execution |
508 | is not set, we know it will become async prior to resume. */ | |
509 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
510 | return; |
511 | ||
512 | /* If GDB is resuming the inferior in the foreground, install | |
513 | inferior's terminal modes. */ | |
d2f640d4 | 514 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 515 | } |
136d6dae | 516 | |
c906108c | 517 | static int |
fba45db2 KB |
518 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
519 | struct target_ops *t) | |
c906108c | 520 | { |
c378eb4e MS |
521 | errno = EIO; /* Can't read/write this location. */ |
522 | return 0; /* No bytes handled. */ | |
c906108c SS |
523 | } |
524 | ||
525 | static void | |
fba45db2 | 526 | tcomplain (void) |
c906108c | 527 | { |
8a3fe4f8 | 528 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
529 | current_target.to_shortname); |
530 | } | |
531 | ||
532 | void | |
fba45db2 | 533 | noprocess (void) |
c906108c | 534 | { |
8a3fe4f8 | 535 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
536 | } |
537 | ||
c906108c | 538 | static void |
0a4f40a2 | 539 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 540 | { |
a3f17187 | 541 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
542 | } |
543 | ||
0ef643c8 JB |
544 | /* A default implementation for the to_get_ada_task_ptid target method. |
545 | ||
546 | This function builds the PTID by using both LWP and TID as part of | |
547 | the PTID lwp and tid elements. The pid used is the pid of the | |
548 | inferior_ptid. */ | |
549 | ||
2c0b251b | 550 | static ptid_t |
1e6b91a4 | 551 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
552 | { |
553 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
554 | } | |
555 | ||
32231432 | 556 | static enum exec_direction_kind |
4c612759 | 557 | default_execution_direction (struct target_ops *self) |
32231432 PA |
558 | { |
559 | if (!target_can_execute_reverse) | |
560 | return EXEC_FORWARD; | |
561 | else if (!target_can_async_p ()) | |
562 | return EXEC_FORWARD; | |
563 | else | |
564 | gdb_assert_not_reached ("\ | |
565 | to_execution_direction must be implemented for reverse async"); | |
566 | } | |
567 | ||
7998dfc3 AC |
568 | /* Go through the target stack from top to bottom, copying over zero |
569 | entries in current_target, then filling in still empty entries. In | |
570 | effect, we are doing class inheritance through the pushed target | |
571 | vectors. | |
572 | ||
573 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
574 | is currently implemented, is that it discards any knowledge of | |
575 | which target an inherited method originally belonged to. | |
576 | Consequently, new new target methods should instead explicitly and | |
577 | locally search the target stack for the target that can handle the | |
578 | request. */ | |
c906108c SS |
579 | |
580 | static void | |
7998dfc3 | 581 | update_current_target (void) |
c906108c | 582 | { |
7998dfc3 AC |
583 | struct target_ops *t; |
584 | ||
08d8bcd7 | 585 | /* First, reset current's contents. */ |
7998dfc3 AC |
586 | memset (¤t_target, 0, sizeof (current_target)); |
587 | ||
1101cb7b TT |
588 | /* Install the delegators. */ |
589 | install_delegators (¤t_target); | |
590 | ||
7998dfc3 AC |
591 | #define INHERIT(FIELD, TARGET) \ |
592 | if (!current_target.FIELD) \ | |
593 | current_target.FIELD = (TARGET)->FIELD | |
594 | ||
595 | for (t = target_stack; t; t = t->beneath) | |
596 | { | |
597 | INHERIT (to_shortname, t); | |
598 | INHERIT (to_longname, t); | |
599 | INHERIT (to_doc, t); | |
b52323fa UW |
600 | /* Do not inherit to_open. */ |
601 | /* Do not inherit to_close. */ | |
136d6dae | 602 | /* Do not inherit to_attach. */ |
bebd3233 | 603 | /* Do not inherit to_post_attach. */ |
dc177b7a | 604 | INHERIT (to_attach_no_wait, t); |
136d6dae | 605 | /* Do not inherit to_detach. */ |
597320e7 | 606 | /* Do not inherit to_disconnect. */ |
28439f5e | 607 | /* Do not inherit to_resume. */ |
117de6a9 | 608 | /* Do not inherit to_wait. */ |
28439f5e PA |
609 | /* Do not inherit to_fetch_registers. */ |
610 | /* Do not inherit to_store_registers. */ | |
6c628163 | 611 | /* Do not inherit to_prepare_to_store. */ |
c8e73a31 | 612 | INHERIT (deprecated_xfer_memory, t); |
f86e59b2 | 613 | /* Do not inherit to_files_info. */ |
3db08215 MM |
614 | /* Do not inherit to_insert_breakpoint. */ |
615 | /* Do not inherit to_remove_breakpoint. */ | |
52b51d06 | 616 | /* Do not inherit to_can_use_hw_breakpoint. */ |
61b371f9 | 617 | /* Do not inherit to_insert_hw_breakpoint. */ |
418dabac | 618 | /* Do not inherit to_remove_hw_breakpoint. */ |
f1310107 | 619 | /* Do not inherit to_ranged_break_num_registers. */ |
016facd4 | 620 | /* Do not inherit to_insert_watchpoint. */ |
61dd109f | 621 | /* Do not inherit to_remove_watchpoint. */ |
9c06b0b4 TJB |
622 | /* Do not inherit to_insert_mask_watchpoint. */ |
623 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 624 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 625 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 626 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 627 | /* Do not inherit to_stopped_by_watchpoint. */ |
65f160a9 | 628 | /* Do not inherit to_watchpoint_addr_within_range. */ |
d03655e4 | 629 | /* Do not inherit to_region_ok_for_hw_watchpoint. */ |
77cdffe9 | 630 | /* Do not inherit to_can_accel_watchpoint_condition. */ |
9c06b0b4 | 631 | /* Do not inherit to_masked_watch_num_registers. */ |
0343661d | 632 | /* Do not inherit to_terminal_init. */ |
ddeaacc9 | 633 | /* Do not inherit to_terminal_inferior. */ |
74fcbef9 | 634 | /* Do not inherit to_terminal_ours_for_output. */ |
e4a733f1 | 635 | /* Do not inherit to_terminal_ours. */ |
c6ea8f79 | 636 | /* Do not inherit to_terminal_save_ours. */ |
e19e919f | 637 | /* Do not inherit to_terminal_info. */ |
7d85a9c0 | 638 | /* Do not inherit to_kill. */ |
7634da87 | 639 | /* Do not inherit to_load. */ |
136d6dae | 640 | /* Do no inherit to_create_inferior. */ |
340ba4bf | 641 | /* Do not inherit to_post_startup_inferior. */ |
5958ebeb | 642 | /* Do not inherit to_insert_fork_catchpoint. */ |
e1a21fb7 | 643 | /* Do not inherit to_remove_fork_catchpoint. */ |
7e18a8dc | 644 | /* Do not inherit to_insert_vfork_catchpoint. */ |
95c3375e | 645 | /* Do not inherit to_remove_vfork_catchpoint. */ |
ee057212 | 646 | /* Do not inherit to_follow_fork. */ |
62f64d7a | 647 | /* Do not inherit to_insert_exec_catchpoint. */ |
cda0f38c | 648 | /* Do not inherit to_remove_exec_catchpoint. */ |
6a9fa051 | 649 | /* Do not inherit to_set_syscall_catchpoint. */ |
0db88c1d | 650 | /* Do not inherit to_has_exited. */ |
82892036 | 651 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 652 | INHERIT (to_can_run, t); |
2455069d | 653 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 654 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
655 | /* Do not inherit to_thread_alive. */ |
656 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 657 | /* Do not inherit to_pid_to_str. */ |
4a7e6dda | 658 | /* Do not inherit to_extra_thread_info. */ |
825828fc | 659 | /* Do not inherit to_thread_name. */ |
7998dfc3 | 660 | INHERIT (to_stop, t); |
4b8a223f | 661 | /* Do not inherit to_xfer_partial. */ |
a53f3625 | 662 | /* Do not inherit to_rcmd. */ |
830ca330 | 663 | /* Do not inherit to_pid_to_exec_file. */ |
d9cb0195 | 664 | /* Do not inherit to_log_command. */ |
7998dfc3 | 665 | INHERIT (to_stratum, t); |
c378eb4e MS |
666 | /* Do not inherit to_has_all_memory. */ |
667 | /* Do not inherit to_has_memory. */ | |
668 | /* Do not inherit to_has_stack. */ | |
669 | /* Do not inherit to_has_registers. */ | |
670 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 671 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
672 | /* Do not inherit to_can_async_p. */ |
673 | /* Do not inherit to_is_async_p. */ | |
674 | /* Do not inherit to_async. */ | |
0b5a2719 | 675 | /* Do not inherit to_find_memory_regions. */ |
16f796b1 | 676 | /* Do not inherit to_make_corefile_notes. */ |
3dbafbbb | 677 | /* Do not inherit to_get_bookmark. */ |
9bb9d61d | 678 | /* Do not inherit to_goto_bookmark. */ |
117de6a9 | 679 | /* Do not inherit to_get_thread_local_address. */ |
53e1cfc7 | 680 | /* Do not inherit to_can_execute_reverse. */ |
fe31bf5b | 681 | /* Do not inherit to_execution_direction. */ |
43eba180 | 682 | /* Do not inherit to_thread_architecture. */ |
424163ea | 683 | /* Do not inherit to_read_description. */ |
4229b31d | 684 | /* Do not inherit to_get_ada_task_ptid. */ |
08388c79 | 685 | /* Do not inherit to_search_memory. */ |
a7304748 | 686 | /* Do not inherit to_supports_multi_process. */ |
aab1b22d | 687 | /* Do not inherit to_supports_enable_disable_tracepoint. */ |
9409d39e | 688 | /* Do not inherit to_supports_string_tracing. */ |
5536135b | 689 | /* Do not inherit to_trace_init. */ |
9a980a22 | 690 | /* Do not inherit to_download_tracepoint. */ |
719acc4a | 691 | /* Do not inherit to_can_download_tracepoint. */ |
94eb98b9 | 692 | /* Do not inherit to_download_trace_state_variable. */ |
151f70f1 | 693 | /* Do not inherit to_enable_tracepoint. */ |
05c41993 | 694 | /* Do not inherit to_disable_tracepoint. */ |
86dd181d | 695 | /* Do not inherit to_trace_set_readonly_regions. */ |
25da2e80 | 696 | /* Do not inherit to_trace_start. */ |
4072d4ff | 697 | /* Do not inherit to_get_trace_status. */ |
6fea14cd | 698 | /* Do not inherit to_get_tracepoint_status. */ |
e51c07ea | 699 | /* Do not inherit to_trace_stop. */ |
afc94e66 | 700 | /* Do not inherit to_trace_find. */ |
959bcd0b | 701 | /* Do not inherit to_get_trace_state_variable_value. */ |
a2e6c147 | 702 | /* Do not inherit to_save_trace_data. */ |
1e949b00 | 703 | /* Do not inherit to_upload_tracepoints. */ |
08120467 | 704 | /* Do not inherit to_upload_trace_state_variables. */ |
ace92e7d | 705 | /* Do not inherit to_get_raw_trace_data. */ |
9249843f | 706 | /* Do not inherit to_get_min_fast_tracepoint_insn_len. */ |
0bcfeddf | 707 | /* Do not inherit to_set_disconnected_tracing. */ |
8d526939 | 708 | /* Do not inherit to_set_circular_trace_buffer. */ |
91df8d1d | 709 | /* Do not inherit to_set_trace_buffer_size. */ |
f196051f | 710 | INHERIT (to_set_trace_notes, t); |
711e434b | 711 | INHERIT (to_get_tib_address, t); |
d914c394 | 712 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
713 | INHERIT (to_static_tracepoint_marker_at, t); |
714 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 715 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
716 | INHERIT (to_use_agent, t); |
717 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 718 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 719 | INHERIT (to_magic, t); |
b775012e | 720 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 721 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 722 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
723 | /* Do not inherit to_flash_erase. */ |
724 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
725 | } |
726 | #undef INHERIT | |
727 | ||
728 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
729 | it. Some entries are defaulted to a method that print an error, |
730 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
731 | |
732 | #define de_fault(field, value) \ | |
7998dfc3 AC |
733 | if (!current_target.field) \ |
734 | current_target.field = value | |
0d06e24b | 735 | |
2bc416ba DJ |
736 | de_fault (to_open, |
737 | (void (*) (char *, int)) | |
0d06e24b | 738 | tcomplain); |
2bc416ba | 739 | de_fault (to_close, |
de90e03d | 740 | (void (*) (struct target_ops *)) |
0d06e24b | 741 | target_ignore); |
2bc416ba | 742 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
743 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
744 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 745 | nomemory); |
2bc416ba | 746 | de_fault (to_can_run, |
da82bd6b | 747 | (int (*) (struct target_ops *)) |
0d06e24b | 748 | return_zero); |
2bc416ba | 749 | de_fault (to_stop, |
1eab8a48 | 750 | (void (*) (struct target_ops *, ptid_t)) |
0d06e24b | 751 | target_ignore); |
424163ea | 752 | current_target.to_read_description = NULL; |
f196051f | 753 | de_fault (to_set_trace_notes, |
d9e68a2c TT |
754 | (int (*) (struct target_ops *, |
755 | const char *, const char *, const char *)) | |
f196051f | 756 | return_zero); |
711e434b | 757 | de_fault (to_get_tib_address, |
bd7ae0f5 | 758 | (int (*) (struct target_ops *, ptid_t, CORE_ADDR *)) |
711e434b | 759 | tcomplain); |
d914c394 | 760 | de_fault (to_set_permissions, |
c378d69d | 761 | (void (*) (struct target_ops *)) |
d914c394 | 762 | target_ignore); |
0fb4aa4b | 763 | de_fault (to_static_tracepoint_marker_at, |
61fc905d TT |
764 | (int (*) (struct target_ops *, |
765 | CORE_ADDR, struct static_tracepoint_marker *)) | |
0fb4aa4b PA |
766 | return_zero); |
767 | de_fault (to_static_tracepoint_markers_by_strid, | |
c686c57f TT |
768 | (VEC(static_tracepoint_marker_p) * (*) (struct target_ops *, |
769 | const char *)) | |
0fb4aa4b | 770 | tcomplain); |
b3b9301e | 771 | de_fault (to_traceframe_info, |
a893e81f | 772 | (struct traceframe_info * (*) (struct target_ops *)) |
1b67eb02 | 773 | return_null); |
b775012e | 774 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
efcc2da7 | 775 | (int (*) (struct target_ops *)) |
b775012e | 776 | return_zero); |
d3ce09f5 | 777 | de_fault (to_can_run_breakpoint_commands, |
78eff0ec | 778 | (int (*) (struct target_ops *)) |
d3ce09f5 | 779 | return_zero); |
d1feda86 | 780 | de_fault (to_use_agent, |
2c152180 | 781 | (int (*) (struct target_ops *, int)) |
d1feda86 YQ |
782 | tcomplain); |
783 | de_fault (to_can_use_agent, | |
fe38f897 | 784 | (int (*) (struct target_ops *)) |
d1feda86 | 785 | return_zero); |
ced63ec0 | 786 | de_fault (to_augmented_libraries_svr4_read, |
5436ff03 | 787 | (int (*) (struct target_ops *)) |
ced63ec0 | 788 | return_zero); |
32231432 | 789 | |
c906108c | 790 | #undef de_fault |
c906108c | 791 | |
7998dfc3 AC |
792 | /* Finally, position the target-stack beneath the squashed |
793 | "current_target". That way code looking for a non-inherited | |
794 | target method can quickly and simply find it. */ | |
795 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
796 | |
797 | if (targetdebug) | |
798 | setup_target_debug (); | |
c906108c SS |
799 | } |
800 | ||
801 | /* Push a new target type into the stack of the existing target accessors, | |
802 | possibly superseding some of the existing accessors. | |
803 | ||
c906108c SS |
804 | Rather than allow an empty stack, we always have the dummy target at |
805 | the bottom stratum, so we can call the function vectors without | |
806 | checking them. */ | |
807 | ||
b26a4dcb | 808 | void |
fba45db2 | 809 | push_target (struct target_ops *t) |
c906108c | 810 | { |
258b763a | 811 | struct target_ops **cur; |
c906108c SS |
812 | |
813 | /* Check magic number. If wrong, it probably means someone changed | |
814 | the struct definition, but not all the places that initialize one. */ | |
815 | if (t->to_magic != OPS_MAGIC) | |
816 | { | |
c5aa993b JM |
817 | fprintf_unfiltered (gdb_stderr, |
818 | "Magic number of %s target struct wrong\n", | |
819 | t->to_shortname); | |
3e43a32a MS |
820 | internal_error (__FILE__, __LINE__, |
821 | _("failed internal consistency check")); | |
c906108c SS |
822 | } |
823 | ||
258b763a AC |
824 | /* Find the proper stratum to install this target in. */ |
825 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 826 | { |
258b763a | 827 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
828 | break; |
829 | } | |
830 | ||
258b763a | 831 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 832 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
833 | targets to CUR, and not just those at this stratum level. */ |
834 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
835 | { | |
836 | /* There's already something at this stratum level. Close it, | |
837 | and un-hook it from the stack. */ | |
838 | struct target_ops *tmp = (*cur); | |
5d502164 | 839 | |
258b763a AC |
840 | (*cur) = (*cur)->beneath; |
841 | tmp->beneath = NULL; | |
460014f5 | 842 | target_close (tmp); |
258b763a | 843 | } |
c906108c SS |
844 | |
845 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
846 | t->beneath = (*cur); |
847 | (*cur) = t; | |
c906108c SS |
848 | |
849 | update_current_target (); | |
c906108c SS |
850 | } |
851 | ||
2bc416ba | 852 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
853 | Return how many times it was removed (0 or 1). */ |
854 | ||
855 | int | |
fba45db2 | 856 | unpush_target (struct target_ops *t) |
c906108c | 857 | { |
258b763a AC |
858 | struct target_ops **cur; |
859 | struct target_ops *tmp; | |
c906108c | 860 | |
c8d104ad PA |
861 | if (t->to_stratum == dummy_stratum) |
862 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 863 | _("Attempt to unpush the dummy target")); |
c8d104ad | 864 | |
c906108c | 865 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 866 | can only occur once in the target stack. */ |
c906108c | 867 | |
258b763a AC |
868 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
869 | { | |
870 | if ((*cur) == t) | |
871 | break; | |
872 | } | |
c906108c | 873 | |
305436e0 PA |
874 | /* If we don't find target_ops, quit. Only open targets should be |
875 | closed. */ | |
258b763a | 876 | if ((*cur) == NULL) |
305436e0 | 877 | return 0; |
5269965e | 878 | |
c378eb4e | 879 | /* Unchain the target. */ |
258b763a AC |
880 | tmp = (*cur); |
881 | (*cur) = (*cur)->beneath; | |
882 | tmp->beneath = NULL; | |
c906108c SS |
883 | |
884 | update_current_target (); | |
c906108c | 885 | |
305436e0 PA |
886 | /* Finally close the target. Note we do this after unchaining, so |
887 | any target method calls from within the target_close | |
888 | implementation don't end up in T anymore. */ | |
460014f5 | 889 | target_close (t); |
305436e0 | 890 | |
c906108c SS |
891 | return 1; |
892 | } | |
893 | ||
aa76d38d | 894 | void |
460014f5 | 895 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 896 | { |
87ab71f0 | 897 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 898 | { |
aa76d38d PA |
899 | if (!unpush_target (target_stack)) |
900 | { | |
901 | fprintf_unfiltered (gdb_stderr, | |
902 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 903 | target_stack->to_shortname); |
aa76d38d PA |
904 | internal_error (__FILE__, __LINE__, |
905 | _("failed internal consistency check")); | |
906 | break; | |
907 | } | |
908 | } | |
909 | } | |
910 | ||
87ab71f0 | 911 | void |
460014f5 | 912 | pop_all_targets (void) |
87ab71f0 | 913 | { |
460014f5 | 914 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
915 | } |
916 | ||
c0edd9ed JK |
917 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
918 | ||
919 | int | |
920 | target_is_pushed (struct target_ops *t) | |
921 | { | |
922 | struct target_ops **cur; | |
923 | ||
924 | /* Check magic number. If wrong, it probably means someone changed | |
925 | the struct definition, but not all the places that initialize one. */ | |
926 | if (t->to_magic != OPS_MAGIC) | |
927 | { | |
928 | fprintf_unfiltered (gdb_stderr, | |
929 | "Magic number of %s target struct wrong\n", | |
930 | t->to_shortname); | |
3e43a32a MS |
931 | internal_error (__FILE__, __LINE__, |
932 | _("failed internal consistency check")); | |
c0edd9ed JK |
933 | } |
934 | ||
935 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
936 | if (*cur == t) | |
937 | return 1; | |
938 | ||
939 | return 0; | |
940 | } | |
941 | ||
72f5cf0e | 942 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
943 | current thread's thread-local storage with offset OFFSET. */ |
944 | CORE_ADDR | |
945 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
946 | { | |
947 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
948 | struct target_ops *target; |
949 | ||
950 | for (target = current_target.beneath; | |
951 | target != NULL; | |
952 | target = target->beneath) | |
953 | { | |
954 | if (target->to_get_thread_local_address != NULL) | |
955 | break; | |
956 | } | |
9e35dae4 | 957 | |
117de6a9 | 958 | if (target != NULL |
f5656ead | 959 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
960 | { |
961 | ptid_t ptid = inferior_ptid; | |
962 | volatile struct gdb_exception ex; | |
963 | ||
964 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
965 | { | |
966 | CORE_ADDR lm_addr; | |
967 | ||
968 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 969 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
970 | objfile); |
971 | /* If it's 0, throw the appropriate exception. */ | |
972 | if (lm_addr == 0) | |
973 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
974 | _("TLS load module not found")); | |
975 | ||
3e43a32a MS |
976 | addr = target->to_get_thread_local_address (target, ptid, |
977 | lm_addr, offset); | |
9e35dae4 DJ |
978 | } |
979 | /* If an error occurred, print TLS related messages here. Otherwise, | |
980 | throw the error to some higher catcher. */ | |
981 | if (ex.reason < 0) | |
982 | { | |
983 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
984 | ||
985 | switch (ex.error) | |
986 | { | |
987 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
988 | error (_("Cannot find thread-local variables " |
989 | "in this thread library.")); | |
9e35dae4 DJ |
990 | break; |
991 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
992 | if (objfile_is_library) | |
993 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 994 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
995 | else |
996 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 997 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
998 | break; |
999 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1000 | if (objfile_is_library) | |
1001 | error (_("The inferior has not yet allocated storage for" | |
1002 | " thread-local variables in\n" | |
1003 | "the shared library `%s'\n" | |
1004 | "for %s"), | |
4262abfb | 1005 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1006 | else |
1007 | error (_("The inferior has not yet allocated storage for" | |
1008 | " thread-local variables in\n" | |
1009 | "the executable `%s'\n" | |
1010 | "for %s"), | |
4262abfb | 1011 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1012 | break; |
1013 | case TLS_GENERIC_ERROR: | |
1014 | if (objfile_is_library) | |
1015 | error (_("Cannot find thread-local storage for %s, " | |
1016 | "shared library %s:\n%s"), | |
1017 | target_pid_to_str (ptid), | |
4262abfb | 1018 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1019 | else |
1020 | error (_("Cannot find thread-local storage for %s, " | |
1021 | "executable file %s:\n%s"), | |
1022 | target_pid_to_str (ptid), | |
4262abfb | 1023 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1024 | break; |
1025 | default: | |
1026 | throw_exception (ex); | |
1027 | break; | |
1028 | } | |
1029 | } | |
1030 | } | |
1031 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1032 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1033 | else | |
1034 | error (_("Cannot find thread-local variables on this target")); | |
1035 | ||
1036 | return addr; | |
1037 | } | |
1038 | ||
6be7b56e | 1039 | const char * |
9b409511 | 1040 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1041 | { |
1042 | #define CASE(X) case X: return #X | |
1043 | switch (err) | |
1044 | { | |
1045 | CASE(TARGET_XFER_E_IO); | |
1046 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1047 | default: | |
1048 | return "<unknown>"; | |
1049 | } | |
1050 | #undef CASE | |
1051 | }; | |
1052 | ||
1053 | ||
c906108c SS |
1054 | #undef MIN |
1055 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1056 | ||
1057 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1058 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1059 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1060 | is responsible for freeing it. Return the number of bytes successfully | |
1061 | read. */ | |
1062 | ||
1063 | int | |
fba45db2 | 1064 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1065 | { |
c2e8b827 | 1066 | int tlen, offset, i; |
1b0ba102 | 1067 | gdb_byte buf[4]; |
c906108c SS |
1068 | int errcode = 0; |
1069 | char *buffer; | |
1070 | int buffer_allocated; | |
1071 | char *bufptr; | |
1072 | unsigned int nbytes_read = 0; | |
1073 | ||
6217bf3e MS |
1074 | gdb_assert (string); |
1075 | ||
c906108c SS |
1076 | /* Small for testing. */ |
1077 | buffer_allocated = 4; | |
1078 | buffer = xmalloc (buffer_allocated); | |
1079 | bufptr = buffer; | |
1080 | ||
c906108c SS |
1081 | while (len > 0) |
1082 | { | |
1083 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1084 | offset = memaddr & 3; | |
1085 | ||
1b0ba102 | 1086 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1087 | if (errcode != 0) |
1088 | { | |
1089 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1090 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1091 | a single byte. */ |
1092 | tlen = 1; | |
1093 | offset = 0; | |
b8eb5af0 | 1094 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1095 | if (errcode != 0) |
1096 | goto done; | |
1097 | } | |
1098 | ||
1099 | if (bufptr - buffer + tlen > buffer_allocated) | |
1100 | { | |
1101 | unsigned int bytes; | |
5d502164 | 1102 | |
c906108c SS |
1103 | bytes = bufptr - buffer; |
1104 | buffer_allocated *= 2; | |
1105 | buffer = xrealloc (buffer, buffer_allocated); | |
1106 | bufptr = buffer + bytes; | |
1107 | } | |
1108 | ||
1109 | for (i = 0; i < tlen; i++) | |
1110 | { | |
1111 | *bufptr++ = buf[i + offset]; | |
1112 | if (buf[i + offset] == '\000') | |
1113 | { | |
1114 | nbytes_read += i + 1; | |
1115 | goto done; | |
1116 | } | |
1117 | } | |
1118 | ||
1119 | memaddr += tlen; | |
1120 | len -= tlen; | |
1121 | nbytes_read += tlen; | |
1122 | } | |
c5aa993b | 1123 | done: |
6217bf3e | 1124 | *string = buffer; |
c906108c SS |
1125 | if (errnop != NULL) |
1126 | *errnop = errcode; | |
c906108c SS |
1127 | return nbytes_read; |
1128 | } | |
1129 | ||
07b82ea5 PA |
1130 | struct target_section_table * |
1131 | target_get_section_table (struct target_ops *target) | |
1132 | { | |
1133 | struct target_ops *t; | |
1134 | ||
1135 | if (targetdebug) | |
1136 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1137 | ||
1138 | for (t = target; t != NULL; t = t->beneath) | |
1139 | if (t->to_get_section_table != NULL) | |
1140 | return (*t->to_get_section_table) (t); | |
1141 | ||
1142 | return NULL; | |
1143 | } | |
1144 | ||
8db32d44 | 1145 | /* Find a section containing ADDR. */ |
07b82ea5 | 1146 | |
0542c86d | 1147 | struct target_section * |
8db32d44 AC |
1148 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1149 | { | |
07b82ea5 | 1150 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1151 | struct target_section *secp; |
07b82ea5 PA |
1152 | |
1153 | if (table == NULL) | |
1154 | return NULL; | |
1155 | ||
1156 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1157 | { |
1158 | if (addr >= secp->addr && addr < secp->endaddr) | |
1159 | return secp; | |
1160 | } | |
1161 | return NULL; | |
1162 | } | |
1163 | ||
e6e4e701 PA |
1164 | /* Read memory from the live target, even if currently inspecting a |
1165 | traceframe. The return is the same as that of target_read. */ | |
1166 | ||
9b409511 | 1167 | static enum target_xfer_status |
e6e4e701 | 1168 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1169 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1170 | ULONGEST *xfered_len) | |
e6e4e701 | 1171 | { |
9b409511 | 1172 | enum target_xfer_status ret; |
e6e4e701 PA |
1173 | struct cleanup *cleanup; |
1174 | ||
1175 | /* Switch momentarily out of tfind mode so to access live memory. | |
1176 | Note that this must not clear global state, such as the frame | |
1177 | cache, which must still remain valid for the previous traceframe. | |
1178 | We may be _building_ the frame cache at this point. */ | |
1179 | cleanup = make_cleanup_restore_traceframe_number (); | |
1180 | set_traceframe_number (-1); | |
1181 | ||
9b409511 YQ |
1182 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1183 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1184 | |
1185 | do_cleanups (cleanup); | |
1186 | return ret; | |
1187 | } | |
1188 | ||
1189 | /* Using the set of read-only target sections of OPS, read live | |
1190 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1191 | top-most target again. |
1192 | ||
1193 | For interface/parameters/return description see target.h, | |
1194 | to_xfer_partial. */ | |
e6e4e701 | 1195 | |
9b409511 | 1196 | static enum target_xfer_status |
e6e4e701 PA |
1197 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1198 | enum target_object object, | |
1199 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1200 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1201 | { |
1202 | struct target_section *secp; | |
1203 | struct target_section_table *table; | |
1204 | ||
1205 | secp = target_section_by_addr (ops, memaddr); | |
1206 | if (secp != NULL | |
2b2848e2 DE |
1207 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1208 | secp->the_bfd_section) | |
e6e4e701 PA |
1209 | & SEC_READONLY)) |
1210 | { | |
1211 | struct target_section *p; | |
1212 | ULONGEST memend = memaddr + len; | |
1213 | ||
1214 | table = target_get_section_table (ops); | |
1215 | ||
1216 | for (p = table->sections; p < table->sections_end; p++) | |
1217 | { | |
1218 | if (memaddr >= p->addr) | |
1219 | { | |
1220 | if (memend <= p->endaddr) | |
1221 | { | |
1222 | /* Entire transfer is within this section. */ | |
1223 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1224 | readbuf, len, xfered_len); |
e6e4e701 PA |
1225 | } |
1226 | else if (memaddr >= p->endaddr) | |
1227 | { | |
1228 | /* This section ends before the transfer starts. */ | |
1229 | continue; | |
1230 | } | |
1231 | else | |
1232 | { | |
1233 | /* This section overlaps the transfer. Just do half. */ | |
1234 | len = p->endaddr - memaddr; | |
1235 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1236 | readbuf, len, xfered_len); |
e6e4e701 PA |
1237 | } |
1238 | } | |
1239 | } | |
1240 | } | |
1241 | ||
9b409511 | 1242 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1243 | } |
1244 | ||
9f713294 YQ |
1245 | /* Read memory from more than one valid target. A core file, for |
1246 | instance, could have some of memory but delegate other bits to | |
1247 | the target below it. So, we must manually try all targets. */ | |
1248 | ||
9b409511 | 1249 | static enum target_xfer_status |
17fde6d0 | 1250 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1251 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1252 | ULONGEST *xfered_len) | |
9f713294 | 1253 | { |
9b409511 | 1254 | enum target_xfer_status res; |
9f713294 YQ |
1255 | |
1256 | do | |
1257 | { | |
1258 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1259 | readbuf, writebuf, memaddr, len, |
1260 | xfered_len); | |
1261 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1262 | break; |
1263 | ||
633785ff MM |
1264 | /* Stop if the target reports that the memory is not available. */ |
1265 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1266 | break; | |
1267 | ||
9f713294 YQ |
1268 | /* We want to continue past core files to executables, but not |
1269 | past a running target's memory. */ | |
1270 | if (ops->to_has_all_memory (ops)) | |
1271 | break; | |
1272 | ||
1273 | ops = ops->beneath; | |
1274 | } | |
1275 | while (ops != NULL); | |
1276 | ||
1277 | return res; | |
1278 | } | |
1279 | ||
7f79c47e DE |
1280 | /* Perform a partial memory transfer. |
1281 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1282 | |
9b409511 | 1283 | static enum target_xfer_status |
f0ba3972 | 1284 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1285 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1286 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1287 | { |
9b409511 | 1288 | enum target_xfer_status res; |
cf7a04e8 DJ |
1289 | int reg_len; |
1290 | struct mem_region *region; | |
4e5d721f | 1291 | struct inferior *inf; |
cf7a04e8 | 1292 | |
07b82ea5 PA |
1293 | /* For accesses to unmapped overlay sections, read directly from |
1294 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1295 | if (readbuf != NULL && overlay_debugging) | |
1296 | { | |
1297 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1298 | |
07b82ea5 PA |
1299 | if (pc_in_unmapped_range (memaddr, section)) |
1300 | { | |
1301 | struct target_section_table *table | |
1302 | = target_get_section_table (ops); | |
1303 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1304 | |
07b82ea5 PA |
1305 | memaddr = overlay_mapped_address (memaddr, section); |
1306 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1307 | memaddr, len, xfered_len, |
07b82ea5 PA |
1308 | table->sections, |
1309 | table->sections_end, | |
1310 | section_name); | |
1311 | } | |
1312 | } | |
1313 | ||
1314 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1315 | if (readbuf != NULL && trust_readonly) |
1316 | { | |
0542c86d | 1317 | struct target_section *secp; |
07b82ea5 | 1318 | struct target_section_table *table; |
cf7a04e8 DJ |
1319 | |
1320 | secp = target_section_by_addr (ops, memaddr); | |
1321 | if (secp != NULL | |
2b2848e2 DE |
1322 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1323 | secp->the_bfd_section) | |
cf7a04e8 | 1324 | & SEC_READONLY)) |
07b82ea5 PA |
1325 | { |
1326 | table = target_get_section_table (ops); | |
1327 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1328 | memaddr, len, xfered_len, |
07b82ea5 PA |
1329 | table->sections, |
1330 | table->sections_end, | |
1331 | NULL); | |
1332 | } | |
98646950 UW |
1333 | } |
1334 | ||
e6e4e701 PA |
1335 | /* If reading unavailable memory in the context of traceframes, and |
1336 | this address falls within a read-only section, fallback to | |
1337 | reading from live memory. */ | |
1338 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1339 | { | |
1340 | VEC(mem_range_s) *available; | |
1341 | ||
1342 | /* If we fail to get the set of available memory, then the | |
1343 | target does not support querying traceframe info, and so we | |
1344 | attempt reading from the traceframe anyway (assuming the | |
1345 | target implements the old QTro packet then). */ | |
1346 | if (traceframe_available_memory (&available, memaddr, len)) | |
1347 | { | |
1348 | struct cleanup *old_chain; | |
1349 | ||
1350 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1351 | ||
1352 | if (VEC_empty (mem_range_s, available) | |
1353 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1354 | { | |
1355 | /* Don't read into the traceframe's available | |
1356 | memory. */ | |
1357 | if (!VEC_empty (mem_range_s, available)) | |
1358 | { | |
1359 | LONGEST oldlen = len; | |
1360 | ||
1361 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1362 | gdb_assert (len <= oldlen); | |
1363 | } | |
1364 | ||
1365 | do_cleanups (old_chain); | |
1366 | ||
1367 | /* This goes through the topmost target again. */ | |
1368 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1369 | readbuf, memaddr, |
1370 | len, xfered_len); | |
1371 | if (res == TARGET_XFER_OK) | |
1372 | return TARGET_XFER_OK; | |
1373 | else | |
1374 | { | |
1375 | /* No use trying further, we know some memory starting | |
1376 | at MEMADDR isn't available. */ | |
1377 | *xfered_len = len; | |
1378 | return TARGET_XFER_E_UNAVAILABLE; | |
1379 | } | |
e6e4e701 PA |
1380 | } |
1381 | ||
1382 | /* Don't try to read more than how much is available, in | |
1383 | case the target implements the deprecated QTro packet to | |
1384 | cater for older GDBs (the target's knowledge of read-only | |
1385 | sections may be outdated by now). */ | |
1386 | len = VEC_index (mem_range_s, available, 0)->length; | |
1387 | ||
1388 | do_cleanups (old_chain); | |
1389 | } | |
1390 | } | |
1391 | ||
cf7a04e8 DJ |
1392 | /* Try GDB's internal data cache. */ |
1393 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1394 | /* region->hi == 0 means there's no upper bound. */ |
1395 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1396 | reg_len = len; |
1397 | else | |
1398 | reg_len = region->hi - memaddr; | |
1399 | ||
1400 | switch (region->attrib.mode) | |
1401 | { | |
1402 | case MEM_RO: | |
1403 | if (writebuf != NULL) | |
2ed4b548 | 1404 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1405 | break; |
1406 | ||
1407 | case MEM_WO: | |
1408 | if (readbuf != NULL) | |
2ed4b548 | 1409 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1410 | break; |
a76d924d DJ |
1411 | |
1412 | case MEM_FLASH: | |
1413 | /* We only support writing to flash during "load" for now. */ | |
1414 | if (writebuf != NULL) | |
1415 | error (_("Writing to flash memory forbidden in this context")); | |
1416 | break; | |
4b5752d0 VP |
1417 | |
1418 | case MEM_NONE: | |
2ed4b548 | 1419 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1420 | } |
1421 | ||
6c95b8df PA |
1422 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1423 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1424 | else | |
1425 | inf = NULL; | |
4e5d721f DE |
1426 | |
1427 | if (inf != NULL | |
2f4d8875 PA |
1428 | /* The dcache reads whole cache lines; that doesn't play well |
1429 | with reading from a trace buffer, because reading outside of | |
1430 | the collected memory range fails. */ | |
1431 | && get_traceframe_number () == -1 | |
4e5d721f | 1432 | && (region->attrib.cache |
29453a14 YQ |
1433 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1434 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1435 | { |
2a2f9fe4 | 1436 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1437 | int l; |
2a2f9fe4 | 1438 | |
cf7a04e8 | 1439 | if (readbuf != NULL) |
9b409511 | 1440 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1441 | else |
1442 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1443 | correctness dcache_xfer_memory should take readbuf and | |
1444 | writebuf. */ | |
9b409511 | 1445 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1446 | reg_len, 1); |
9b409511 YQ |
1447 | if (l <= 0) |
1448 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1449 | else |
9b409511 YQ |
1450 | { |
1451 | *xfered_len = (ULONGEST) l; | |
1452 | return TARGET_XFER_OK; | |
1453 | } | |
cf7a04e8 DJ |
1454 | } |
1455 | ||
1456 | /* If none of those methods found the memory we wanted, fall back | |
1457 | to a target partial transfer. Normally a single call to | |
1458 | to_xfer_partial is enough; if it doesn't recognize an object | |
1459 | it will call the to_xfer_partial of the next target down. | |
1460 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1461 | object which can be read from more than one valid target. |
1462 | A core file, for instance, could have some of memory but | |
1463 | delegate other bits to the target below it. So, we must | |
1464 | manually try all targets. */ | |
1465 | ||
1466 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1467 | xfered_len); | |
cf7a04e8 | 1468 | |
41dcd03f DE |
1469 | /* Make sure the cache gets updated no matter what - if we are writing |
1470 | to the stack. Even if this write is not tagged as such, we still need | |
1471 | to update the cache. */ | |
1472 | ||
9b409511 | 1473 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1474 | && inf != NULL |
1475 | && writebuf != NULL | |
f2de9785 | 1476 | && target_dcache_init_p () |
41dcd03f | 1477 | && !region->attrib.cache |
29453a14 YQ |
1478 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1479 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1480 | { |
f2de9785 | 1481 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1482 | |
9b409511 | 1483 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1484 | } |
1485 | ||
cf7a04e8 DJ |
1486 | /* If we still haven't got anything, return the last error. We |
1487 | give up. */ | |
1488 | return res; | |
0779438d AC |
1489 | } |
1490 | ||
f0ba3972 PA |
1491 | /* Perform a partial memory transfer. For docs see target.h, |
1492 | to_xfer_partial. */ | |
1493 | ||
9b409511 | 1494 | static enum target_xfer_status |
f0ba3972 | 1495 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1496 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1497 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1498 | { |
9b409511 | 1499 | enum target_xfer_status res; |
f0ba3972 PA |
1500 | |
1501 | /* Zero length requests are ok and require no work. */ | |
1502 | if (len == 0) | |
9b409511 | 1503 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1504 | |
1505 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1506 | breakpoint insns, thus hiding out from higher layers whether | |
1507 | there are software breakpoints inserted in the code stream. */ | |
1508 | if (readbuf != NULL) | |
1509 | { | |
9b409511 YQ |
1510 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1511 | xfered_len); | |
f0ba3972 | 1512 | |
9b409511 | 1513 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1514 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1515 | } | |
1516 | else | |
1517 | { | |
1518 | void *buf; | |
1519 | struct cleanup *old_chain; | |
1520 | ||
67c059c2 AB |
1521 | /* A large write request is likely to be partially satisfied |
1522 | by memory_xfer_partial_1. We will continually malloc | |
1523 | and free a copy of the entire write request for breakpoint | |
1524 | shadow handling even though we only end up writing a small | |
1525 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1526 | len = min (4096, len); | |
1527 | ||
f0ba3972 PA |
1528 | buf = xmalloc (len); |
1529 | old_chain = make_cleanup (xfree, buf); | |
1530 | memcpy (buf, writebuf, len); | |
1531 | ||
1532 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1533 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1534 | xfered_len); | |
f0ba3972 PA |
1535 | |
1536 | do_cleanups (old_chain); | |
1537 | } | |
1538 | ||
1539 | return res; | |
1540 | } | |
1541 | ||
8defab1a DJ |
1542 | static void |
1543 | restore_show_memory_breakpoints (void *arg) | |
1544 | { | |
1545 | show_memory_breakpoints = (uintptr_t) arg; | |
1546 | } | |
1547 | ||
1548 | struct cleanup * | |
1549 | make_show_memory_breakpoints_cleanup (int show) | |
1550 | { | |
1551 | int current = show_memory_breakpoints; | |
8defab1a | 1552 | |
5d502164 | 1553 | show_memory_breakpoints = show; |
8defab1a DJ |
1554 | return make_cleanup (restore_show_memory_breakpoints, |
1555 | (void *) (uintptr_t) current); | |
1556 | } | |
1557 | ||
7f79c47e DE |
1558 | /* For docs see target.h, to_xfer_partial. */ |
1559 | ||
9b409511 | 1560 | enum target_xfer_status |
27394598 AC |
1561 | target_xfer_partial (struct target_ops *ops, |
1562 | enum target_object object, const char *annex, | |
4ac248ca | 1563 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1564 | ULONGEST offset, ULONGEST len, |
1565 | ULONGEST *xfered_len) | |
27394598 | 1566 | { |
9b409511 | 1567 | enum target_xfer_status retval; |
27394598 AC |
1568 | |
1569 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1570 | |
ce6d0892 YQ |
1571 | /* Transfer is done when LEN is zero. */ |
1572 | if (len == 0) | |
9b409511 | 1573 | return TARGET_XFER_EOF; |
ce6d0892 | 1574 | |
d914c394 SS |
1575 | if (writebuf && !may_write_memory) |
1576 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1577 | core_addr_to_string_nz (offset), plongest (len)); | |
1578 | ||
9b409511 YQ |
1579 | *xfered_len = 0; |
1580 | ||
cf7a04e8 DJ |
1581 | /* If this is a memory transfer, let the memory-specific code |
1582 | have a look at it instead. Memory transfers are more | |
1583 | complicated. */ | |
29453a14 YQ |
1584 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1585 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1586 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1587 | writebuf, offset, len, xfered_len); |
9f713294 | 1588 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1589 | { |
9f713294 | 1590 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1591 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1592 | xfered_len); | |
cf7a04e8 | 1593 | } |
9f713294 YQ |
1594 | else |
1595 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1596 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1597 | |
27394598 AC |
1598 | if (targetdebug) |
1599 | { | |
1600 | const unsigned char *myaddr = NULL; | |
1601 | ||
1602 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1603 | "%s:target_xfer_partial " |
9b409511 | 1604 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1605 | ops->to_shortname, |
1606 | (int) object, | |
1607 | (annex ? annex : "(null)"), | |
53b71562 JB |
1608 | host_address_to_string (readbuf), |
1609 | host_address_to_string (writebuf), | |
0b1553bc | 1610 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1611 | pulongest (len), retval, |
1612 | pulongest (*xfered_len)); | |
27394598 AC |
1613 | |
1614 | if (readbuf) | |
1615 | myaddr = readbuf; | |
1616 | if (writebuf) | |
1617 | myaddr = writebuf; | |
9b409511 | 1618 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1619 | { |
1620 | int i; | |
2bc416ba | 1621 | |
27394598 | 1622 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1623 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1624 | { |
53b71562 | 1625 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1626 | { |
1627 | if (targetdebug < 2 && i > 0) | |
1628 | { | |
1629 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1630 | break; | |
1631 | } | |
1632 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1633 | } | |
2bc416ba | 1634 | |
27394598 AC |
1635 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1636 | } | |
1637 | } | |
2bc416ba | 1638 | |
27394598 AC |
1639 | fputc_unfiltered ('\n', gdb_stdlog); |
1640 | } | |
9b409511 YQ |
1641 | |
1642 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1643 | properly. Do assertion after printing debug messages, so that we | |
1644 | can find more clues on assertion failure from debugging messages. */ | |
1645 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1646 | gdb_assert (*xfered_len > 0); | |
1647 | ||
27394598 AC |
1648 | return retval; |
1649 | } | |
1650 | ||
578d3588 PA |
1651 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1652 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1653 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1654 | |
1655 | If an error occurs, no guarantee is made about the contents of the data at | |
1656 | MYADDR. In particular, the caller should not depend upon partial reads | |
1657 | filling the buffer with good data. There is no way for the caller to know | |
1658 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1659 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1660 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1661 | |
1662 | int | |
1b162304 | 1663 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1664 | { |
c35b1492 PA |
1665 | /* Dispatch to the topmost target, not the flattened current_target. |
1666 | Memory accesses check target->to_has_(all_)memory, and the | |
1667 | flattened target doesn't inherit those. */ | |
1668 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1669 | myaddr, memaddr, len) == len) |
1670 | return 0; | |
0779438d | 1671 | else |
578d3588 | 1672 | return TARGET_XFER_E_IO; |
c906108c SS |
1673 | } |
1674 | ||
aee4bf85 PA |
1675 | /* Like target_read_memory, but specify explicitly that this is a read |
1676 | from the target's raw memory. That is, this read bypasses the | |
1677 | dcache, breakpoint shadowing, etc. */ | |
1678 | ||
1679 | int | |
1680 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1681 | { | |
1682 | /* See comment in target_read_memory about why the request starts at | |
1683 | current_target.beneath. */ | |
1684 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1685 | myaddr, memaddr, len) == len) | |
1686 | return 0; | |
1687 | else | |
1688 | return TARGET_XFER_E_IO; | |
1689 | } | |
1690 | ||
4e5d721f DE |
1691 | /* Like target_read_memory, but specify explicitly that this is a read from |
1692 | the target's stack. This may trigger different cache behavior. */ | |
1693 | ||
1694 | int | |
45aa4659 | 1695 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1696 | { |
aee4bf85 PA |
1697 | /* See comment in target_read_memory about why the request starts at |
1698 | current_target.beneath. */ | |
4e5d721f DE |
1699 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1700 | myaddr, memaddr, len) == len) | |
1701 | return 0; | |
1702 | else | |
578d3588 | 1703 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1704 | } |
1705 | ||
29453a14 YQ |
1706 | /* Like target_read_memory, but specify explicitly that this is a read from |
1707 | the target's code. This may trigger different cache behavior. */ | |
1708 | ||
1709 | int | |
1710 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1711 | { | |
aee4bf85 PA |
1712 | /* See comment in target_read_memory about why the request starts at |
1713 | current_target.beneath. */ | |
29453a14 YQ |
1714 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1715 | myaddr, memaddr, len) == len) | |
1716 | return 0; | |
1717 | else | |
1718 | return TARGET_XFER_E_IO; | |
1719 | } | |
1720 | ||
7f79c47e | 1721 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1722 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1723 | error occurs. If an error occurs, no guarantee is made about how |
1724 | much data got written. Callers that can deal with partial writes | |
1725 | should call target_write. */ | |
7f79c47e | 1726 | |
c906108c | 1727 | int |
45aa4659 | 1728 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1729 | { |
aee4bf85 PA |
1730 | /* See comment in target_read_memory about why the request starts at |
1731 | current_target.beneath. */ | |
c35b1492 | 1732 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1733 | myaddr, memaddr, len) == len) |
1734 | return 0; | |
0779438d | 1735 | else |
578d3588 | 1736 | return TARGET_XFER_E_IO; |
c906108c | 1737 | } |
c5aa993b | 1738 | |
f0ba3972 | 1739 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1740 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1741 | if any error occurs. If an error occurs, no guarantee is made |
1742 | about how much data got written. Callers that can deal with | |
1743 | partial writes should call target_write. */ | |
f0ba3972 PA |
1744 | |
1745 | int | |
45aa4659 | 1746 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1747 | { |
aee4bf85 PA |
1748 | /* See comment in target_read_memory about why the request starts at |
1749 | current_target.beneath. */ | |
f0ba3972 PA |
1750 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1751 | myaddr, memaddr, len) == len) | |
1752 | return 0; | |
1753 | else | |
578d3588 | 1754 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1755 | } |
1756 | ||
fd79ecee DJ |
1757 | /* Fetch the target's memory map. */ |
1758 | ||
1759 | VEC(mem_region_s) * | |
1760 | target_memory_map (void) | |
1761 | { | |
1762 | VEC(mem_region_s) *result; | |
1763 | struct mem_region *last_one, *this_one; | |
1764 | int ix; | |
1765 | struct target_ops *t; | |
1766 | ||
1767 | if (targetdebug) | |
1768 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1769 | ||
1770 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1771 | if (t->to_memory_map != NULL) | |
1772 | break; | |
1773 | ||
1774 | if (t == NULL) | |
1775 | return NULL; | |
1776 | ||
1777 | result = t->to_memory_map (t); | |
1778 | if (result == NULL) | |
1779 | return NULL; | |
1780 | ||
1781 | qsort (VEC_address (mem_region_s, result), | |
1782 | VEC_length (mem_region_s, result), | |
1783 | sizeof (struct mem_region), mem_region_cmp); | |
1784 | ||
1785 | /* Check that regions do not overlap. Simultaneously assign | |
1786 | a numbering for the "mem" commands to use to refer to | |
1787 | each region. */ | |
1788 | last_one = NULL; | |
1789 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1790 | { | |
1791 | this_one->number = ix; | |
1792 | ||
1793 | if (last_one && last_one->hi > this_one->lo) | |
1794 | { | |
1795 | warning (_("Overlapping regions in memory map: ignoring")); | |
1796 | VEC_free (mem_region_s, result); | |
1797 | return NULL; | |
1798 | } | |
1799 | last_one = this_one; | |
1800 | } | |
1801 | ||
1802 | return result; | |
1803 | } | |
1804 | ||
a76d924d DJ |
1805 | void |
1806 | target_flash_erase (ULONGEST address, LONGEST length) | |
1807 | { | |
1808 | struct target_ops *t; | |
1809 | ||
1810 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1811 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1812 | { |
1813 | if (targetdebug) | |
1814 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1815 | hex_string (address), phex (length, 0)); | |
1816 | t->to_flash_erase (t, address, length); | |
1817 | return; | |
1818 | } | |
a76d924d DJ |
1819 | |
1820 | tcomplain (); | |
1821 | } | |
1822 | ||
1823 | void | |
1824 | target_flash_done (void) | |
1825 | { | |
1826 | struct target_ops *t; | |
1827 | ||
1828 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1829 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1830 | { |
1831 | if (targetdebug) | |
1832 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1833 | t->to_flash_done (t); | |
1834 | return; | |
1835 | } | |
a76d924d DJ |
1836 | |
1837 | tcomplain (); | |
1838 | } | |
1839 | ||
920d2a44 AC |
1840 | static void |
1841 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1842 | struct cmd_list_element *c, const char *value) | |
1843 | { | |
3e43a32a MS |
1844 | fprintf_filtered (file, |
1845 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1846 | value); |
1847 | } | |
3a11626d | 1848 | |
1e3ff5ad AC |
1849 | /* More generic transfers. */ |
1850 | ||
9b409511 | 1851 | static enum target_xfer_status |
8aa91c1e | 1852 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1853 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
1854 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
1855 | ULONGEST *xfered_len) | |
0088c768 AC |
1856 | { |
1857 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1858 | && ops->deprecated_xfer_memory != NULL) |
1859 | /* If available, fall back to the target's | |
1860 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1861 | { |
4b8a223f | 1862 | int xfered = -1; |
5d502164 | 1863 | |
0088c768 | 1864 | errno = 0; |
4b8a223f AC |
1865 | if (writebuf != NULL) |
1866 | { | |
1867 | void *buffer = xmalloc (len); | |
1868 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1869 | |
4b8a223f | 1870 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1871 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1872 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1873 | do_cleanups (cleanup); |
1874 | } | |
1875 | if (readbuf != NULL) | |
244e85c8 MS |
1876 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1877 | 0/*read*/, NULL, ops); | |
0088c768 | 1878 | if (xfered > 0) |
9b409511 YQ |
1879 | { |
1880 | *xfered_len = (ULONGEST) xfered; | |
1881 | return TARGET_XFER_E_IO; | |
1882 | } | |
0088c768 | 1883 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
1884 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1885 | ERRNO as one indication of an error. */ | |
9b409511 | 1886 | return TARGET_XFER_EOF; |
0088c768 | 1887 | else |
9b409511 | 1888 | return TARGET_XFER_E_IO; |
0088c768 | 1889 | } |
0088c768 | 1890 | else |
6b84065d TT |
1891 | { |
1892 | gdb_assert (ops->beneath != NULL); | |
1893 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1894 | readbuf, writebuf, offset, len, | |
1895 | xfered_len); | |
1896 | } | |
0088c768 AC |
1897 | } |
1898 | ||
7f79c47e | 1899 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1900 | |
9b409511 | 1901 | static enum target_xfer_status |
1e3ff5ad AC |
1902 | target_read_partial (struct target_ops *ops, |
1903 | enum target_object object, | |
1b0ba102 | 1904 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1905 | ULONGEST offset, ULONGEST len, |
1906 | ULONGEST *xfered_len) | |
1e3ff5ad | 1907 | { |
9b409511 YQ |
1908 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1909 | xfered_len); | |
1e3ff5ad AC |
1910 | } |
1911 | ||
8a55ffb0 | 1912 | static enum target_xfer_status |
1e3ff5ad AC |
1913 | target_write_partial (struct target_ops *ops, |
1914 | enum target_object object, | |
1b0ba102 | 1915 | const char *annex, const gdb_byte *buf, |
9b409511 | 1916 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1917 | { |
9b409511 YQ |
1918 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1919 | xfered_len); | |
1e3ff5ad AC |
1920 | } |
1921 | ||
1922 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1923 | |
1924 | /* For docs on target_read see target.h. */ | |
1925 | ||
1e3ff5ad AC |
1926 | LONGEST |
1927 | target_read (struct target_ops *ops, | |
1928 | enum target_object object, | |
1b0ba102 | 1929 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1930 | ULONGEST offset, LONGEST len) |
1931 | { | |
1932 | LONGEST xfered = 0; | |
5d502164 | 1933 | |
1e3ff5ad AC |
1934 | while (xfered < len) |
1935 | { | |
9b409511 YQ |
1936 | ULONGEST xfered_len; |
1937 | enum target_xfer_status status; | |
1938 | ||
1939 | status = target_read_partial (ops, object, annex, | |
1940 | (gdb_byte *) buf + xfered, | |
1941 | offset + xfered, len - xfered, | |
1942 | &xfered_len); | |
5d502164 | 1943 | |
1e3ff5ad | 1944 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1945 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1946 | return xfered; |
9b409511 YQ |
1947 | else if (status == TARGET_XFER_OK) |
1948 | { | |
1949 | xfered += xfered_len; | |
1950 | QUIT; | |
1951 | } | |
1952 | else | |
0088c768 | 1953 | return -1; |
9b409511 | 1954 | |
1e3ff5ad AC |
1955 | } |
1956 | return len; | |
1957 | } | |
1958 | ||
f1a507a1 JB |
1959 | /* Assuming that the entire [begin, end) range of memory cannot be |
1960 | read, try to read whatever subrange is possible to read. | |
1961 | ||
1962 | The function returns, in RESULT, either zero or one memory block. | |
1963 | If there's a readable subrange at the beginning, it is completely | |
1964 | read and returned. Any further readable subrange will not be read. | |
1965 | Otherwise, if there's a readable subrange at the end, it will be | |
1966 | completely read and returned. Any readable subranges before it | |
1967 | (obviously, not starting at the beginning), will be ignored. In | |
1968 | other cases -- either no readable subrange, or readable subrange(s) | |
1969 | that is neither at the beginning, or end, nothing is returned. | |
1970 | ||
1971 | The purpose of this function is to handle a read across a boundary | |
1972 | of accessible memory in a case when memory map is not available. | |
1973 | The above restrictions are fine for this case, but will give | |
1974 | incorrect results if the memory is 'patchy'. However, supporting | |
1975 | 'patchy' memory would require trying to read every single byte, | |
1976 | and it seems unacceptable solution. Explicit memory map is | |
1977 | recommended for this case -- and target_read_memory_robust will | |
1978 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1979 | |
1980 | static void | |
3e43a32a MS |
1981 | read_whatever_is_readable (struct target_ops *ops, |
1982 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1983 | VEC(memory_read_result_s) **result) |
d5086790 | 1984 | { |
f1a507a1 | 1985 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1986 | ULONGEST current_begin = begin; |
1987 | ULONGEST current_end = end; | |
1988 | int forward; | |
1989 | memory_read_result_s r; | |
9b409511 | 1990 | ULONGEST xfered_len; |
8dedea02 VP |
1991 | |
1992 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1993 | if (end - begin <= 1) | |
13b3fd9b MS |
1994 | { |
1995 | xfree (buf); | |
1996 | return; | |
1997 | } | |
8dedea02 VP |
1998 | |
1999 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2000 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2001 | at the boundary of accessible region. */ |
2002 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 2003 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
2004 | { |
2005 | forward = 1; | |
2006 | ++current_begin; | |
2007 | } | |
2008 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
2009 | buf + (end-begin) - 1, end - 1, 1, |
2010 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
2011 | { |
2012 | forward = 0; | |
2013 | --current_end; | |
2014 | } | |
2015 | else | |
2016 | { | |
13b3fd9b | 2017 | xfree (buf); |
8dedea02 VP |
2018 | return; |
2019 | } | |
2020 | ||
2021 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2022 | found to be not readable as a whole. | |
2023 | ||
2024 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2025 | so there's no point trying further. */ | |
2026 | while (current_end - current_begin > 1) | |
2027 | { | |
2028 | ULONGEST first_half_begin, first_half_end; | |
2029 | ULONGEST second_half_begin, second_half_end; | |
2030 | LONGEST xfer; | |
8dedea02 | 2031 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2032 | |
8dedea02 VP |
2033 | if (forward) |
2034 | { | |
2035 | first_half_begin = current_begin; | |
2036 | first_half_end = middle; | |
2037 | second_half_begin = middle; | |
2038 | second_half_end = current_end; | |
2039 | } | |
2040 | else | |
2041 | { | |
2042 | first_half_begin = middle; | |
2043 | first_half_end = current_end; | |
2044 | second_half_begin = current_begin; | |
2045 | second_half_end = middle; | |
2046 | } | |
2047 | ||
2048 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2049 | buf + (first_half_begin - begin), | |
2050 | first_half_begin, | |
2051 | first_half_end - first_half_begin); | |
2052 | ||
2053 | if (xfer == first_half_end - first_half_begin) | |
2054 | { | |
c378eb4e | 2055 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2056 | other half. */ |
8dedea02 VP |
2057 | current_begin = second_half_begin; |
2058 | current_end = second_half_end; | |
2059 | } | |
2060 | else | |
2061 | { | |
c378eb4e MS |
2062 | /* This half is not readable. Because we've tried one byte, we |
2063 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2064 | iteration to divide again and try to read. |
2065 | ||
2066 | We don't handle the other half, because this function only tries | |
2067 | to read a single readable subrange. */ | |
2068 | current_begin = first_half_begin; | |
2069 | current_end = first_half_end; | |
2070 | } | |
2071 | } | |
2072 | ||
2073 | if (forward) | |
2074 | { | |
2075 | /* The [begin, current_begin) range has been read. */ | |
2076 | r.begin = begin; | |
2077 | r.end = current_begin; | |
2078 | r.data = buf; | |
2079 | } | |
2080 | else | |
2081 | { | |
2082 | /* The [current_end, end) range has been read. */ | |
2083 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2084 | |
8dedea02 VP |
2085 | r.data = xmalloc (rlen); |
2086 | memcpy (r.data, buf + current_end - begin, rlen); | |
2087 | r.begin = current_end; | |
2088 | r.end = end; | |
2089 | xfree (buf); | |
2090 | } | |
2091 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2092 | } | |
2093 | ||
2094 | void | |
2095 | free_memory_read_result_vector (void *x) | |
2096 | { | |
2097 | VEC(memory_read_result_s) *v = x; | |
2098 | memory_read_result_s *current; | |
2099 | int ix; | |
2100 | ||
2101 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2102 | { | |
2103 | xfree (current->data); | |
2104 | } | |
2105 | VEC_free (memory_read_result_s, v); | |
2106 | } | |
2107 | ||
2108 | VEC(memory_read_result_s) * | |
2109 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2110 | { | |
2111 | VEC(memory_read_result_s) *result = 0; | |
2112 | ||
2113 | LONGEST xfered = 0; | |
d5086790 VP |
2114 | while (xfered < len) |
2115 | { | |
8dedea02 VP |
2116 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2117 | LONGEST rlen; | |
5d502164 | 2118 | |
8dedea02 VP |
2119 | /* If there is no explicit region, a fake one should be created. */ |
2120 | gdb_assert (region); | |
2121 | ||
2122 | if (region->hi == 0) | |
2123 | rlen = len - xfered; | |
2124 | else | |
2125 | rlen = region->hi - offset; | |
2126 | ||
2127 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2128 | { |
c378eb4e | 2129 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2130 | if the region is explicitly marked inaccessible, or |
2131 | 'inaccessible-by-default' is in effect. */ | |
2132 | xfered += rlen; | |
2133 | } | |
2134 | else | |
2135 | { | |
2136 | LONGEST to_read = min (len - xfered, rlen); | |
2137 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2138 | ||
2139 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2140 | (gdb_byte *) buffer, | |
2141 | offset + xfered, to_read); | |
2142 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2143 | if (xfer <= 0) |
d5086790 | 2144 | { |
c378eb4e | 2145 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2146 | some subrange. */ |
2147 | xfree (buffer); | |
3e43a32a MS |
2148 | read_whatever_is_readable (ops, offset + xfered, |
2149 | offset + xfered + to_read, &result); | |
8dedea02 | 2150 | xfered += to_read; |
d5086790 | 2151 | } |
8dedea02 VP |
2152 | else |
2153 | { | |
2154 | struct memory_read_result r; | |
2155 | r.data = buffer; | |
2156 | r.begin = offset + xfered; | |
2157 | r.end = r.begin + xfer; | |
2158 | VEC_safe_push (memory_read_result_s, result, &r); | |
2159 | xfered += xfer; | |
2160 | } | |
2161 | QUIT; | |
d5086790 | 2162 | } |
d5086790 | 2163 | } |
8dedea02 | 2164 | return result; |
d5086790 VP |
2165 | } |
2166 | ||
8dedea02 | 2167 | |
cf7a04e8 DJ |
2168 | /* An alternative to target_write with progress callbacks. */ |
2169 | ||
1e3ff5ad | 2170 | LONGEST |
cf7a04e8 DJ |
2171 | target_write_with_progress (struct target_ops *ops, |
2172 | enum target_object object, | |
2173 | const char *annex, const gdb_byte *buf, | |
2174 | ULONGEST offset, LONGEST len, | |
2175 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2176 | { |
2177 | LONGEST xfered = 0; | |
a76d924d DJ |
2178 | |
2179 | /* Give the progress callback a chance to set up. */ | |
2180 | if (progress) | |
2181 | (*progress) (0, baton); | |
2182 | ||
1e3ff5ad AC |
2183 | while (xfered < len) |
2184 | { | |
9b409511 YQ |
2185 | ULONGEST xfered_len; |
2186 | enum target_xfer_status status; | |
2187 | ||
2188 | status = target_write_partial (ops, object, annex, | |
2189 | (gdb_byte *) buf + xfered, | |
2190 | offset + xfered, len - xfered, | |
2191 | &xfered_len); | |
cf7a04e8 | 2192 | |
9b409511 | 2193 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2194 | return xfered; |
9b409511 | 2195 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2196 | return -1; |
cf7a04e8 | 2197 | |
9b409511 | 2198 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2199 | if (progress) |
9b409511 | 2200 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2201 | |
9b409511 | 2202 | xfered += xfered_len; |
1e3ff5ad AC |
2203 | QUIT; |
2204 | } | |
2205 | return len; | |
2206 | } | |
2207 | ||
7f79c47e DE |
2208 | /* For docs on target_write see target.h. */ |
2209 | ||
cf7a04e8 DJ |
2210 | LONGEST |
2211 | target_write (struct target_ops *ops, | |
2212 | enum target_object object, | |
2213 | const char *annex, const gdb_byte *buf, | |
2214 | ULONGEST offset, LONGEST len) | |
2215 | { | |
2216 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2217 | NULL, NULL); | |
2218 | } | |
2219 | ||
159f81f3 DJ |
2220 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2221 | the size of the transferred data. PADDING additional bytes are | |
2222 | available in *BUF_P. This is a helper function for | |
2223 | target_read_alloc; see the declaration of that function for more | |
2224 | information. */ | |
13547ab6 | 2225 | |
159f81f3 DJ |
2226 | static LONGEST |
2227 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2228 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2229 | { |
2230 | size_t buf_alloc, buf_pos; | |
2231 | gdb_byte *buf; | |
13547ab6 DJ |
2232 | |
2233 | /* This function does not have a length parameter; it reads the | |
2234 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2235 | from one target and partly from another (in a different stratum, | |
2236 | e.g. a core file and an executable). Both reasons make it | |
2237 | unsuitable for reading memory. */ | |
2238 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2239 | ||
2240 | /* Start by reading up to 4K at a time. The target will throttle | |
2241 | this number down if necessary. */ | |
2242 | buf_alloc = 4096; | |
2243 | buf = xmalloc (buf_alloc); | |
2244 | buf_pos = 0; | |
2245 | while (1) | |
2246 | { | |
9b409511 YQ |
2247 | ULONGEST xfered_len; |
2248 | enum target_xfer_status status; | |
2249 | ||
2250 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2251 | buf_pos, buf_alloc - buf_pos - padding, | |
2252 | &xfered_len); | |
2253 | ||
2254 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2255 | { |
2256 | /* Read all there was. */ | |
2257 | if (buf_pos == 0) | |
2258 | xfree (buf); | |
2259 | else | |
2260 | *buf_p = buf; | |
2261 | return buf_pos; | |
2262 | } | |
9b409511 YQ |
2263 | else if (status != TARGET_XFER_OK) |
2264 | { | |
2265 | /* An error occurred. */ | |
2266 | xfree (buf); | |
2267 | return TARGET_XFER_E_IO; | |
2268 | } | |
13547ab6 | 2269 | |
9b409511 | 2270 | buf_pos += xfered_len; |
13547ab6 DJ |
2271 | |
2272 | /* If the buffer is filling up, expand it. */ | |
2273 | if (buf_alloc < buf_pos * 2) | |
2274 | { | |
2275 | buf_alloc *= 2; | |
2276 | buf = xrealloc (buf, buf_alloc); | |
2277 | } | |
2278 | ||
2279 | QUIT; | |
2280 | } | |
2281 | } | |
2282 | ||
159f81f3 DJ |
2283 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2284 | the size of the transferred data. See the declaration in "target.h" | |
2285 | function for more information about the return value. */ | |
2286 | ||
2287 | LONGEST | |
2288 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2289 | const char *annex, gdb_byte **buf_p) | |
2290 | { | |
2291 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2292 | } | |
2293 | ||
2294 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2295 | returned as a string, allocated using xmalloc. If an error occurs | |
2296 | or the transfer is unsupported, NULL is returned. Empty objects | |
2297 | are returned as allocated but empty strings. A warning is issued | |
2298 | if the result contains any embedded NUL bytes. */ | |
2299 | ||
2300 | char * | |
2301 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2302 | const char *annex) | |
2303 | { | |
39086a0e PA |
2304 | gdb_byte *buffer; |
2305 | char *bufstr; | |
7313baad | 2306 | LONGEST i, transferred; |
159f81f3 | 2307 | |
39086a0e PA |
2308 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2309 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2310 | |
2311 | if (transferred < 0) | |
2312 | return NULL; | |
2313 | ||
2314 | if (transferred == 0) | |
2315 | return xstrdup (""); | |
2316 | ||
39086a0e | 2317 | bufstr[transferred] = 0; |
7313baad UW |
2318 | |
2319 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2320 | for (i = strlen (bufstr); i < transferred; i++) |
2321 | if (bufstr[i] != 0) | |
7313baad UW |
2322 | { |
2323 | warning (_("target object %d, annex %s, " | |
2324 | "contained unexpected null characters"), | |
2325 | (int) object, annex ? annex : "(none)"); | |
2326 | break; | |
2327 | } | |
159f81f3 | 2328 | |
39086a0e | 2329 | return bufstr; |
159f81f3 DJ |
2330 | } |
2331 | ||
b6591e8b AC |
2332 | /* Memory transfer methods. */ |
2333 | ||
2334 | void | |
1b0ba102 | 2335 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2336 | LONGEST len) |
2337 | { | |
07b82ea5 PA |
2338 | /* This method is used to read from an alternate, non-current |
2339 | target. This read must bypass the overlay support (as symbols | |
2340 | don't match this target), and GDB's internal cache (wrong cache | |
2341 | for this target). */ | |
2342 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2343 | != len) |
578d3588 | 2344 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2345 | } |
2346 | ||
2347 | ULONGEST | |
5d502164 MS |
2348 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2349 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2350 | { |
f6519ebc | 2351 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2352 | |
2353 | gdb_assert (len <= sizeof (buf)); | |
2354 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2355 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2356 | } |
2357 | ||
3db08215 MM |
2358 | /* See target.h. */ |
2359 | ||
d914c394 SS |
2360 | int |
2361 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2362 | struct bp_target_info *bp_tgt) | |
2363 | { | |
2364 | if (!may_insert_breakpoints) | |
2365 | { | |
2366 | warning (_("May not insert breakpoints")); | |
2367 | return 1; | |
2368 | } | |
2369 | ||
6b84065d TT |
2370 | return current_target.to_insert_breakpoint (¤t_target, |
2371 | gdbarch, bp_tgt); | |
d914c394 SS |
2372 | } |
2373 | ||
3db08215 MM |
2374 | /* See target.h. */ |
2375 | ||
d914c394 | 2376 | int |
6b84065d TT |
2377 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2378 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2379 | { |
2380 | /* This is kind of a weird case to handle, but the permission might | |
2381 | have been changed after breakpoints were inserted - in which case | |
2382 | we should just take the user literally and assume that any | |
2383 | breakpoints should be left in place. */ | |
2384 | if (!may_insert_breakpoints) | |
2385 | { | |
2386 | warning (_("May not remove breakpoints")); | |
2387 | return 1; | |
2388 | } | |
2389 | ||
6b84065d TT |
2390 | return current_target.to_remove_breakpoint (¤t_target, |
2391 | gdbarch, bp_tgt); | |
d914c394 SS |
2392 | } |
2393 | ||
c906108c | 2394 | static void |
fba45db2 | 2395 | target_info (char *args, int from_tty) |
c906108c SS |
2396 | { |
2397 | struct target_ops *t; | |
c906108c | 2398 | int has_all_mem = 0; |
c5aa993b | 2399 | |
c906108c | 2400 | if (symfile_objfile != NULL) |
4262abfb JK |
2401 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2402 | objfile_name (symfile_objfile)); | |
c906108c | 2403 | |
258b763a | 2404 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2405 | { |
c35b1492 | 2406 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2407 | continue; |
2408 | ||
c5aa993b | 2409 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2410 | continue; |
2411 | if (has_all_mem) | |
3e43a32a MS |
2412 | printf_unfiltered (_("\tWhile running this, " |
2413 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2414 | printf_unfiltered ("%s:\n", t->to_longname); |
2415 | (t->to_files_info) (t); | |
c35b1492 | 2416 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2417 | } |
2418 | } | |
2419 | ||
fd79ecee DJ |
2420 | /* This function is called before any new inferior is created, e.g. |
2421 | by running a program, attaching, or connecting to a target. | |
2422 | It cleans up any state from previous invocations which might | |
2423 | change between runs. This is a subset of what target_preopen | |
2424 | resets (things which might change between targets). */ | |
2425 | ||
2426 | void | |
2427 | target_pre_inferior (int from_tty) | |
2428 | { | |
c378eb4e | 2429 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2430 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2431 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2432 | to reproduce: |
2433 | ||
2434 | bash$ ./foo& | |
2435 | [1] 4711 | |
2436 | bash$ ./foo& | |
2437 | [1] 4712 | |
2438 | bash$ gdb ./foo | |
2439 | [...] | |
2440 | (gdb) attach 4711 | |
2441 | (gdb) detach | |
2442 | (gdb) attach 4712 | |
2443 | Cannot access memory at address 0xdeadbeef | |
2444 | */ | |
b9db4ced | 2445 | |
50c71eaf PA |
2446 | /* In some OSs, the shared library list is the same/global/shared |
2447 | across inferiors. If code is shared between processes, so are | |
2448 | memory regions and features. */ | |
f5656ead | 2449 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2450 | { |
2451 | no_shared_libraries (NULL, from_tty); | |
2452 | ||
2453 | invalidate_target_mem_regions (); | |
424163ea | 2454 | |
50c71eaf PA |
2455 | target_clear_description (); |
2456 | } | |
8ffcbaaf YQ |
2457 | |
2458 | agent_capability_invalidate (); | |
fd79ecee DJ |
2459 | } |
2460 | ||
b8fa0bfa PA |
2461 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2462 | inferior. */ | |
2463 | ||
2464 | static int | |
2465 | dispose_inferior (struct inferior *inf, void *args) | |
2466 | { | |
2467 | struct thread_info *thread; | |
2468 | ||
2469 | thread = any_thread_of_process (inf->pid); | |
2470 | if (thread) | |
2471 | { | |
2472 | switch_to_thread (thread->ptid); | |
2473 | ||
2474 | /* Core inferiors actually should be detached, not killed. */ | |
2475 | if (target_has_execution) | |
2476 | target_kill (); | |
2477 | else | |
2478 | target_detach (NULL, 0); | |
2479 | } | |
2480 | ||
2481 | return 0; | |
2482 | } | |
2483 | ||
c906108c SS |
2484 | /* This is to be called by the open routine before it does |
2485 | anything. */ | |
2486 | ||
2487 | void | |
fba45db2 | 2488 | target_preopen (int from_tty) |
c906108c | 2489 | { |
c5aa993b | 2490 | dont_repeat (); |
c906108c | 2491 | |
b8fa0bfa | 2492 | if (have_inferiors ()) |
c5aa993b | 2493 | { |
adf40b2e | 2494 | if (!from_tty |
b8fa0bfa PA |
2495 | || !have_live_inferiors () |
2496 | || query (_("A program is being debugged already. Kill it? "))) | |
2497 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2498 | else |
8a3fe4f8 | 2499 | error (_("Program not killed.")); |
c906108c SS |
2500 | } |
2501 | ||
2502 | /* Calling target_kill may remove the target from the stack. But if | |
2503 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2504 | /* Leave the exec target, though. The user may be switching from a |
2505 | live process to a core of the same program. */ | |
460014f5 | 2506 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2507 | |
2508 | target_pre_inferior (from_tty); | |
c906108c SS |
2509 | } |
2510 | ||
2511 | /* Detach a target after doing deferred register stores. */ | |
2512 | ||
2513 | void | |
52554a0e | 2514 | target_detach (const char *args, int from_tty) |
c906108c | 2515 | { |
136d6dae VP |
2516 | struct target_ops* t; |
2517 | ||
f5656ead | 2518 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2519 | /* Don't remove global breakpoints here. They're removed on |
2520 | disconnection from the target. */ | |
2521 | ; | |
2522 | else | |
2523 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2524 | them before detaching. */ | |
dfd4cc63 | 2525 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2526 | |
24291992 PA |
2527 | prepare_for_detach (); |
2528 | ||
09da0d0a TT |
2529 | current_target.to_detach (¤t_target, args, from_tty); |
2530 | if (targetdebug) | |
2531 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2532 | args, from_tty); | |
c906108c SS |
2533 | } |
2534 | ||
6ad8ae5c DJ |
2535 | void |
2536 | target_disconnect (char *args, int from_tty) | |
2537 | { | |
597320e7 DJ |
2538 | struct target_ops *t; |
2539 | ||
50c71eaf PA |
2540 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2541 | are global across processes, we have to remove them before | |
2542 | disconnecting. */ | |
74960c60 VP |
2543 | remove_breakpoints (); |
2544 | ||
597320e7 DJ |
2545 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2546 | if (t->to_disconnect != NULL) | |
2547 | { | |
2548 | if (targetdebug) | |
2549 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2550 | args, from_tty); | |
2551 | t->to_disconnect (t, args, from_tty); | |
2552 | return; | |
2553 | } | |
2554 | ||
2555 | tcomplain (); | |
6ad8ae5c DJ |
2556 | } |
2557 | ||
117de6a9 | 2558 | ptid_t |
47608cb1 | 2559 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2560 | { |
2561 | struct target_ops *t; | |
6b84065d TT |
2562 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2563 | status, options); | |
117de6a9 | 2564 | |
6b84065d | 2565 | if (targetdebug) |
117de6a9 | 2566 | { |
6b84065d TT |
2567 | char *status_string; |
2568 | char *options_string; | |
117de6a9 | 2569 | |
6b84065d TT |
2570 | status_string = target_waitstatus_to_string (status); |
2571 | options_string = target_options_to_string (options); | |
2572 | fprintf_unfiltered (gdb_stdlog, | |
2573 | "target_wait (%d, status, options={%s})" | |
2574 | " = %d, %s\n", | |
2575 | ptid_get_pid (ptid), options_string, | |
2576 | ptid_get_pid (retval), status_string); | |
2577 | xfree (status_string); | |
2578 | xfree (options_string); | |
117de6a9 PA |
2579 | } |
2580 | ||
6b84065d | 2581 | return retval; |
117de6a9 PA |
2582 | } |
2583 | ||
2584 | char * | |
2585 | target_pid_to_str (ptid_t ptid) | |
2586 | { | |
2587 | struct target_ops *t; | |
2588 | ||
2589 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2590 | { | |
2591 | if (t->to_pid_to_str != NULL) | |
2592 | return (*t->to_pid_to_str) (t, ptid); | |
2593 | } | |
2594 | ||
2595 | return normal_pid_to_str (ptid); | |
2596 | } | |
2597 | ||
4694da01 TT |
2598 | char * |
2599 | target_thread_name (struct thread_info *info) | |
2600 | { | |
825828fc | 2601 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2602 | } |
2603 | ||
e1ac3328 | 2604 | void |
2ea28649 | 2605 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2606 | { |
28439f5e PA |
2607 | struct target_ops *t; |
2608 | ||
4e5d721f | 2609 | target_dcache_invalidate (); |
28439f5e | 2610 | |
6b84065d TT |
2611 | current_target.to_resume (¤t_target, ptid, step, signal); |
2612 | if (targetdebug) | |
2613 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2614 | ptid_get_pid (ptid), | |
2615 | step ? "step" : "continue", | |
2616 | gdb_signal_to_name (signal)); | |
28439f5e | 2617 | |
6b84065d TT |
2618 | registers_changed_ptid (ptid); |
2619 | set_executing (ptid, 1); | |
2620 | set_running (ptid, 1); | |
2621 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2622 | } |
2455069d UW |
2623 | |
2624 | void | |
2625 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2626 | { | |
2627 | struct target_ops *t; | |
2628 | ||
2629 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2630 | { | |
2631 | if (t->to_pass_signals != NULL) | |
2632 | { | |
2633 | if (targetdebug) | |
2634 | { | |
2635 | int i; | |
2636 | ||
2637 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2638 | numsigs); | |
2639 | ||
2640 | for (i = 0; i < numsigs; i++) | |
2641 | if (pass_signals[i]) | |
2642 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2643 | gdb_signal_to_name (i)); |
2455069d UW |
2644 | |
2645 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2646 | } | |
2647 | ||
94bedb42 | 2648 | (*t->to_pass_signals) (t, numsigs, pass_signals); |
2455069d UW |
2649 | return; |
2650 | } | |
2651 | } | |
2652 | } | |
2653 | ||
9b224c5e PA |
2654 | void |
2655 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2656 | { | |
2657 | struct target_ops *t; | |
2658 | ||
2659 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2660 | { | |
2661 | if (t->to_program_signals != NULL) | |
2662 | { | |
2663 | if (targetdebug) | |
2664 | { | |
2665 | int i; | |
2666 | ||
2667 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2668 | numsigs); | |
2669 | ||
2670 | for (i = 0; i < numsigs; i++) | |
2671 | if (program_signals[i]) | |
2672 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2673 | gdb_signal_to_name (i)); |
9b224c5e PA |
2674 | |
2675 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2676 | } | |
2677 | ||
daf5e9b6 | 2678 | (*t->to_program_signals) (t, numsigs, program_signals); |
9b224c5e PA |
2679 | return; |
2680 | } | |
2681 | } | |
2682 | } | |
2683 | ||
ee057212 DJ |
2684 | /* Look through the list of possible targets for a target that can |
2685 | follow forks. */ | |
2686 | ||
2687 | int | |
07107ca6 | 2688 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2689 | { |
2690 | struct target_ops *t; | |
2691 | ||
2692 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2693 | { | |
2694 | if (t->to_follow_fork != NULL) | |
2695 | { | |
07107ca6 | 2696 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2697 | |
ee057212 | 2698 | if (targetdebug) |
07107ca6 LM |
2699 | fprintf_unfiltered (gdb_stdlog, |
2700 | "target_follow_fork (%d, %d) = %d\n", | |
2701 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2702 | return retval; |
2703 | } | |
2704 | } | |
2705 | ||
2706 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2707 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2708 | _("could not find a target to follow fork")); |
ee057212 DJ |
2709 | } |
2710 | ||
136d6dae VP |
2711 | void |
2712 | target_mourn_inferior (void) | |
2713 | { | |
2714 | struct target_ops *t; | |
5d502164 | 2715 | |
136d6dae VP |
2716 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2717 | { | |
2718 | if (t->to_mourn_inferior != NULL) | |
2719 | { | |
2720 | t->to_mourn_inferior (t); | |
947b8855 PA |
2721 | if (targetdebug) |
2722 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2723 | |
2724 | /* We no longer need to keep handles on any of the object files. | |
2725 | Make sure to release them to avoid unnecessarily locking any | |
2726 | of them while we're not actually debugging. */ | |
2727 | bfd_cache_close_all (); | |
2728 | ||
136d6dae VP |
2729 | return; |
2730 | } | |
2731 | } | |
2732 | ||
2733 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2734 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2735 | } |
2736 | ||
424163ea DJ |
2737 | /* Look for a target which can describe architectural features, starting |
2738 | from TARGET. If we find one, return its description. */ | |
2739 | ||
2740 | const struct target_desc * | |
2741 | target_read_description (struct target_ops *target) | |
2742 | { | |
2743 | struct target_ops *t; | |
2744 | ||
2745 | for (t = target; t != NULL; t = t->beneath) | |
2746 | if (t->to_read_description != NULL) | |
2747 | { | |
2748 | const struct target_desc *tdesc; | |
2749 | ||
2750 | tdesc = t->to_read_description (t); | |
2751 | if (tdesc) | |
2752 | return tdesc; | |
2753 | } | |
2754 | ||
2755 | return NULL; | |
2756 | } | |
2757 | ||
08388c79 DE |
2758 | /* The default implementation of to_search_memory. |
2759 | This implements a basic search of memory, reading target memory and | |
2760 | performing the search here (as opposed to performing the search in on the | |
2761 | target side with, for example, gdbserver). */ | |
2762 | ||
2763 | int | |
2764 | simple_search_memory (struct target_ops *ops, | |
2765 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2766 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2767 | CORE_ADDR *found_addrp) | |
2768 | { | |
2769 | /* NOTE: also defined in find.c testcase. */ | |
2770 | #define SEARCH_CHUNK_SIZE 16000 | |
2771 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2772 | /* Buffer to hold memory contents for searching. */ | |
2773 | gdb_byte *search_buf; | |
2774 | unsigned search_buf_size; | |
2775 | struct cleanup *old_cleanups; | |
2776 | ||
2777 | search_buf_size = chunk_size + pattern_len - 1; | |
2778 | ||
2779 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2780 | if (search_space_len < search_buf_size) | |
2781 | search_buf_size = search_space_len; | |
2782 | ||
2783 | search_buf = malloc (search_buf_size); | |
2784 | if (search_buf == NULL) | |
5e1471f5 | 2785 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2786 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2787 | ||
2788 | /* Prime the search buffer. */ | |
2789 | ||
2790 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2791 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2792 | { | |
b3dc46ff AB |
2793 | warning (_("Unable to access %s bytes of target " |
2794 | "memory at %s, halting search."), | |
2795 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2796 | do_cleanups (old_cleanups); |
2797 | return -1; | |
2798 | } | |
2799 | ||
2800 | /* Perform the search. | |
2801 | ||
2802 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2803 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2804 | read in another N bytes. */ | |
2805 | ||
2806 | while (search_space_len >= pattern_len) | |
2807 | { | |
2808 | gdb_byte *found_ptr; | |
2809 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2810 | ||
2811 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2812 | pattern, pattern_len); | |
2813 | ||
2814 | if (found_ptr != NULL) | |
2815 | { | |
2816 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2817 | |
08388c79 DE |
2818 | *found_addrp = found_addr; |
2819 | do_cleanups (old_cleanups); | |
2820 | return 1; | |
2821 | } | |
2822 | ||
2823 | /* Not found in this chunk, skip to next chunk. */ | |
2824 | ||
2825 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2826 | if (search_space_len >= chunk_size) | |
2827 | search_space_len -= chunk_size; | |
2828 | else | |
2829 | search_space_len = 0; | |
2830 | ||
2831 | if (search_space_len >= pattern_len) | |
2832 | { | |
2833 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2834 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2835 | int nr_to_read; |
2836 | ||
2837 | /* Copy the trailing part of the previous iteration to the front | |
2838 | of the buffer for the next iteration. */ | |
2839 | gdb_assert (keep_len == pattern_len - 1); | |
2840 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2841 | ||
2842 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2843 | ||
2844 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2845 | search_buf + keep_len, read_addr, | |
2846 | nr_to_read) != nr_to_read) | |
2847 | { | |
b3dc46ff | 2848 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2849 | "memory at %s, halting search."), |
b3dc46ff | 2850 | plongest (nr_to_read), |
08388c79 DE |
2851 | hex_string (read_addr)); |
2852 | do_cleanups (old_cleanups); | |
2853 | return -1; | |
2854 | } | |
2855 | ||
2856 | start_addr += chunk_size; | |
2857 | } | |
2858 | } | |
2859 | ||
2860 | /* Not found. */ | |
2861 | ||
2862 | do_cleanups (old_cleanups); | |
2863 | return 0; | |
2864 | } | |
2865 | ||
2866 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2867 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2868 | ||
2869 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2870 | requiring halting of the search (e.g. memory read error). | |
2871 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2872 | ||
2873 | int | |
2874 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2875 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2876 | CORE_ADDR *found_addrp) | |
2877 | { | |
2878 | struct target_ops *t; | |
2879 | int found; | |
2880 | ||
2881 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2882 | so we have to scan the target stack and handle targetdebug | |
2883 | ourselves. */ | |
2884 | ||
2885 | if (targetdebug) | |
2886 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2887 | hex_string (start_addr)); | |
2888 | ||
2889 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2890 | if (t->to_search_memory != NULL) | |
2891 | break; | |
2892 | ||
2893 | if (t != NULL) | |
2894 | { | |
2895 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2896 | pattern, pattern_len, found_addrp); | |
2897 | } | |
2898 | else | |
2899 | { | |
2900 | /* If a special version of to_search_memory isn't available, use the | |
2901 | simple version. */ | |
c35b1492 | 2902 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2903 | start_addr, search_space_len, |
2904 | pattern, pattern_len, found_addrp); | |
2905 | } | |
2906 | ||
2907 | if (targetdebug) | |
2908 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2909 | ||
2910 | return found; | |
2911 | } | |
2912 | ||
8edfe269 DJ |
2913 | /* Look through the currently pushed targets. If none of them will |
2914 | be able to restart the currently running process, issue an error | |
2915 | message. */ | |
2916 | ||
2917 | void | |
2918 | target_require_runnable (void) | |
2919 | { | |
2920 | struct target_ops *t; | |
2921 | ||
2922 | for (t = target_stack; t != NULL; t = t->beneath) | |
2923 | { | |
2924 | /* If this target knows how to create a new program, then | |
2925 | assume we will still be able to after killing the current | |
2926 | one. Either killing and mourning will not pop T, or else | |
2927 | find_default_run_target will find it again. */ | |
2928 | if (t->to_create_inferior != NULL) | |
2929 | return; | |
2930 | ||
2931 | /* Do not worry about thread_stratum targets that can not | |
2932 | create inferiors. Assume they will be pushed again if | |
2933 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2934 | if (t->to_stratum == thread_stratum |
2935 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2936 | continue; |
2937 | ||
3e43a32a MS |
2938 | error (_("The \"%s\" target does not support \"run\". " |
2939 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2940 | t->to_shortname); |
2941 | } | |
2942 | ||
2943 | /* This function is only called if the target is running. In that | |
2944 | case there should have been a process_stratum target and it | |
c378eb4e | 2945 | should either know how to create inferiors, or not... */ |
9b20d036 | 2946 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2947 | } |
2948 | ||
c906108c SS |
2949 | /* Look through the list of possible targets for a target that can |
2950 | execute a run or attach command without any other data. This is | |
2951 | used to locate the default process stratum. | |
2952 | ||
5f667f2d PA |
2953 | If DO_MESG is not NULL, the result is always valid (error() is |
2954 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2955 | |
2956 | static struct target_ops * | |
fba45db2 | 2957 | find_default_run_target (char *do_mesg) |
c906108c SS |
2958 | { |
2959 | struct target_ops **t; | |
2960 | struct target_ops *runable = NULL; | |
2961 | int count; | |
2962 | ||
2963 | count = 0; | |
2964 | ||
2965 | for (t = target_structs; t < target_structs + target_struct_size; | |
2966 | ++t) | |
2967 | { | |
c5aa993b | 2968 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2969 | { |
2970 | runable = *t; | |
2971 | ++count; | |
2972 | } | |
2973 | } | |
2974 | ||
2975 | if (count != 1) | |
5f667f2d PA |
2976 | { |
2977 | if (do_mesg) | |
2978 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2979 | else | |
2980 | return NULL; | |
2981 | } | |
c906108c SS |
2982 | |
2983 | return runable; | |
2984 | } | |
2985 | ||
2986 | void | |
136d6dae | 2987 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2988 | { |
2989 | struct target_ops *t; | |
2990 | ||
c5aa993b | 2991 | t = find_default_run_target ("attach"); |
136d6dae | 2992 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2993 | return; |
2994 | } | |
2995 | ||
c906108c | 2996 | void |
136d6dae VP |
2997 | find_default_create_inferior (struct target_ops *ops, |
2998 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2999 | int from_tty) |
c906108c SS |
3000 | { |
3001 | struct target_ops *t; | |
3002 | ||
c5aa993b | 3003 | t = find_default_run_target ("run"); |
136d6dae | 3004 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3005 | return; |
3006 | } | |
3007 | ||
2c0b251b | 3008 | static int |
6a109b6b | 3009 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
3010 | { |
3011 | struct target_ops *t; | |
3012 | ||
5f667f2d PA |
3013 | /* This may be called before the target is pushed on the stack; |
3014 | look for the default process stratum. If there's none, gdb isn't | |
3015 | configured with a native debugger, and target remote isn't | |
3016 | connected yet. */ | |
3017 | t = find_default_run_target (NULL); | |
6b84065d | 3018 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 3019 | return (t->to_can_async_p) (t); |
b84876c2 PA |
3020 | return 0; |
3021 | } | |
3022 | ||
2c0b251b | 3023 | static int |
6a109b6b | 3024 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
3025 | { |
3026 | struct target_ops *t; | |
3027 | ||
5f667f2d PA |
3028 | /* This may be called before the target is pushed on the stack; |
3029 | look for the default process stratum. If there's none, gdb isn't | |
3030 | configured with a native debugger, and target remote isn't | |
3031 | connected yet. */ | |
3032 | t = find_default_run_target (NULL); | |
6b84065d | 3033 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 3034 | return (t->to_is_async_p) (t); |
b84876c2 PA |
3035 | return 0; |
3036 | } | |
3037 | ||
2c0b251b | 3038 | static int |
2a9a2795 | 3039 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
3040 | { |
3041 | struct target_ops *t; | |
3042 | ||
3043 | t = find_default_run_target (NULL); | |
3044 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 3045 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
3046 | return 0; |
3047 | } | |
3048 | ||
3049 | int | |
2c0b251b | 3050 | target_supports_non_stop (void) |
9908b566 VP |
3051 | { |
3052 | struct target_ops *t; | |
5d502164 | 3053 | |
9908b566 VP |
3054 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3055 | if (t->to_supports_non_stop) | |
2a9a2795 | 3056 | return t->to_supports_non_stop (t); |
9908b566 VP |
3057 | |
3058 | return 0; | |
3059 | } | |
3060 | ||
145b16a9 UW |
3061 | /* Implement the "info proc" command. */ |
3062 | ||
451b7c33 | 3063 | int |
145b16a9 UW |
3064 | target_info_proc (char *args, enum info_proc_what what) |
3065 | { | |
3066 | struct target_ops *t; | |
3067 | ||
3068 | /* If we're already connected to something that can get us OS | |
3069 | related data, use it. Otherwise, try using the native | |
3070 | target. */ | |
3071 | if (current_target.to_stratum >= process_stratum) | |
3072 | t = current_target.beneath; | |
3073 | else | |
3074 | t = find_default_run_target (NULL); | |
3075 | ||
3076 | for (; t != NULL; t = t->beneath) | |
3077 | { | |
3078 | if (t->to_info_proc != NULL) | |
3079 | { | |
3080 | t->to_info_proc (t, args, what); | |
3081 | ||
3082 | if (targetdebug) | |
3083 | fprintf_unfiltered (gdb_stdlog, | |
3084 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3085 | ||
451b7c33 | 3086 | return 1; |
145b16a9 UW |
3087 | } |
3088 | } | |
3089 | ||
451b7c33 | 3090 | return 0; |
145b16a9 UW |
3091 | } |
3092 | ||
03583c20 | 3093 | static int |
2bfc0540 | 3094 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
3095 | { |
3096 | struct target_ops *t; | |
3097 | ||
3098 | t = find_default_run_target (NULL); | |
3099 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 3100 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
3101 | return 0; |
3102 | } | |
3103 | ||
3104 | int | |
3105 | target_supports_disable_randomization (void) | |
3106 | { | |
3107 | struct target_ops *t; | |
3108 | ||
3109 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3110 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 3111 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
3112 | |
3113 | return 0; | |
3114 | } | |
9908b566 | 3115 | |
07e059b5 VP |
3116 | char * |
3117 | target_get_osdata (const char *type) | |
3118 | { | |
07e059b5 VP |
3119 | struct target_ops *t; |
3120 | ||
739ef7fb PA |
3121 | /* If we're already connected to something that can get us OS |
3122 | related data, use it. Otherwise, try using the native | |
3123 | target. */ | |
3124 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3125 | t = current_target.beneath; |
739ef7fb PA |
3126 | else |
3127 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3128 | |
3129 | if (!t) | |
3130 | return NULL; | |
3131 | ||
6d097e65 | 3132 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3133 | } |
3134 | ||
6c95b8df PA |
3135 | /* Determine the current address space of thread PTID. */ |
3136 | ||
3137 | struct address_space * | |
3138 | target_thread_address_space (ptid_t ptid) | |
3139 | { | |
c0694254 | 3140 | struct address_space *aspace; |
6c95b8df | 3141 | struct inferior *inf; |
c0694254 PA |
3142 | struct target_ops *t; |
3143 | ||
3144 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3145 | { | |
3146 | if (t->to_thread_address_space != NULL) | |
3147 | { | |
3148 | aspace = t->to_thread_address_space (t, ptid); | |
3149 | gdb_assert (aspace); | |
6c95b8df | 3150 | |
c0694254 PA |
3151 | if (targetdebug) |
3152 | fprintf_unfiltered (gdb_stdlog, | |
3153 | "target_thread_address_space (%s) = %d\n", | |
3154 | target_pid_to_str (ptid), | |
3155 | address_space_num (aspace)); | |
3156 | return aspace; | |
3157 | } | |
3158 | } | |
6c95b8df PA |
3159 | |
3160 | /* Fall-back to the "main" address space of the inferior. */ | |
3161 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3162 | ||
3163 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3164 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3165 | _("Can't determine the current " |
3166 | "address space of thread %s\n"), | |
6c95b8df PA |
3167 | target_pid_to_str (ptid)); |
3168 | ||
3169 | return inf->aspace; | |
3170 | } | |
3171 | ||
7313baad UW |
3172 | |
3173 | /* Target file operations. */ | |
3174 | ||
3175 | static struct target_ops * | |
3176 | default_fileio_target (void) | |
3177 | { | |
3178 | /* If we're already connected to something that can perform | |
3179 | file I/O, use it. Otherwise, try using the native target. */ | |
3180 | if (current_target.to_stratum >= process_stratum) | |
3181 | return current_target.beneath; | |
3182 | else | |
3183 | return find_default_run_target ("file I/O"); | |
3184 | } | |
3185 | ||
3186 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3187 | target file descriptor, or -1 if an error occurs (and set | |
3188 | *TARGET_ERRNO). */ | |
3189 | int | |
3190 | target_fileio_open (const char *filename, int flags, int mode, | |
3191 | int *target_errno) | |
3192 | { | |
3193 | struct target_ops *t; | |
3194 | ||
3195 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3196 | { | |
3197 | if (t->to_fileio_open != NULL) | |
3198 | { | |
cd897586 | 3199 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
3200 | |
3201 | if (targetdebug) | |
3202 | fprintf_unfiltered (gdb_stdlog, | |
3203 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3204 | filename, flags, mode, | |
3205 | fd, fd != -1 ? 0 : *target_errno); | |
3206 | return fd; | |
3207 | } | |
3208 | } | |
3209 | ||
3210 | *target_errno = FILEIO_ENOSYS; | |
3211 | return -1; | |
3212 | } | |
3213 | ||
3214 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3215 | Return the number of bytes written, or -1 if an error occurs | |
3216 | (and set *TARGET_ERRNO). */ | |
3217 | int | |
3218 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3219 | ULONGEST offset, int *target_errno) | |
3220 | { | |
3221 | struct target_ops *t; | |
3222 | ||
3223 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3224 | { | |
3225 | if (t->to_fileio_pwrite != NULL) | |
3226 | { | |
0d866f62 | 3227 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
3228 | target_errno); |
3229 | ||
3230 | if (targetdebug) | |
3231 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3232 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3233 | "= %d (%d)\n", |
a71b5a38 | 3234 | fd, len, pulongest (offset), |
7313baad UW |
3235 | ret, ret != -1 ? 0 : *target_errno); |
3236 | return ret; | |
3237 | } | |
3238 | } | |
3239 | ||
3240 | *target_errno = FILEIO_ENOSYS; | |
3241 | return -1; | |
3242 | } | |
3243 | ||
3244 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3245 | Return the number of bytes read, or -1 if an error occurs | |
3246 | (and set *TARGET_ERRNO). */ | |
3247 | int | |
3248 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3249 | ULONGEST offset, int *target_errno) | |
3250 | { | |
3251 | struct target_ops *t; | |
3252 | ||
3253 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3254 | { | |
3255 | if (t->to_fileio_pread != NULL) | |
3256 | { | |
a3be983c | 3257 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
3258 | target_errno); |
3259 | ||
3260 | if (targetdebug) | |
3261 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3262 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3263 | "= %d (%d)\n", |
a71b5a38 | 3264 | fd, len, pulongest (offset), |
7313baad UW |
3265 | ret, ret != -1 ? 0 : *target_errno); |
3266 | return ret; | |
3267 | } | |
3268 | } | |
3269 | ||
3270 | *target_errno = FILEIO_ENOSYS; | |
3271 | return -1; | |
3272 | } | |
3273 | ||
3274 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3275 | (and set *TARGET_ERRNO). */ | |
3276 | int | |
3277 | target_fileio_close (int fd, int *target_errno) | |
3278 | { | |
3279 | struct target_ops *t; | |
3280 | ||
3281 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3282 | { | |
3283 | if (t->to_fileio_close != NULL) | |
3284 | { | |
df39ea25 | 3285 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
3286 | |
3287 | if (targetdebug) | |
3288 | fprintf_unfiltered (gdb_stdlog, | |
3289 | "target_fileio_close (%d) = %d (%d)\n", | |
3290 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3291 | return ret; | |
3292 | } | |
3293 | } | |
3294 | ||
3295 | *target_errno = FILEIO_ENOSYS; | |
3296 | return -1; | |
3297 | } | |
3298 | ||
3299 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3300 | occurs (and set *TARGET_ERRNO). */ | |
3301 | int | |
3302 | target_fileio_unlink (const char *filename, int *target_errno) | |
3303 | { | |
3304 | struct target_ops *t; | |
3305 | ||
3306 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3307 | { | |
3308 | if (t->to_fileio_unlink != NULL) | |
3309 | { | |
dbbca37d | 3310 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
3311 | |
3312 | if (targetdebug) | |
3313 | fprintf_unfiltered (gdb_stdlog, | |
3314 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3315 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3316 | return ret; | |
3317 | } | |
3318 | } | |
3319 | ||
3320 | *target_errno = FILEIO_ENOSYS; | |
3321 | return -1; | |
3322 | } | |
3323 | ||
b9e7b9c3 UW |
3324 | /* Read value of symbolic link FILENAME on the target. Return a |
3325 | null-terminated string allocated via xmalloc, or NULL if an error | |
3326 | occurs (and set *TARGET_ERRNO). */ | |
3327 | char * | |
3328 | target_fileio_readlink (const char *filename, int *target_errno) | |
3329 | { | |
3330 | struct target_ops *t; | |
3331 | ||
3332 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3333 | { | |
3334 | if (t->to_fileio_readlink != NULL) | |
3335 | { | |
fab5aa7c | 3336 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
3337 | |
3338 | if (targetdebug) | |
3339 | fprintf_unfiltered (gdb_stdlog, | |
3340 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3341 | filename, ret? ret : "(nil)", | |
3342 | ret? 0 : *target_errno); | |
3343 | return ret; | |
3344 | } | |
3345 | } | |
3346 | ||
3347 | *target_errno = FILEIO_ENOSYS; | |
3348 | return NULL; | |
3349 | } | |
3350 | ||
7313baad UW |
3351 | static void |
3352 | target_fileio_close_cleanup (void *opaque) | |
3353 | { | |
3354 | int fd = *(int *) opaque; | |
3355 | int target_errno; | |
3356 | ||
3357 | target_fileio_close (fd, &target_errno); | |
3358 | } | |
3359 | ||
3360 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3361 | return the size of the transferred data. PADDING additional bytes are | |
3362 | available in *BUF_P. This is a helper function for | |
3363 | target_fileio_read_alloc; see the declaration of that function for more | |
3364 | information. */ | |
3365 | ||
3366 | static LONGEST | |
3367 | target_fileio_read_alloc_1 (const char *filename, | |
3368 | gdb_byte **buf_p, int padding) | |
3369 | { | |
3370 | struct cleanup *close_cleanup; | |
3371 | size_t buf_alloc, buf_pos; | |
3372 | gdb_byte *buf; | |
3373 | LONGEST n; | |
3374 | int fd; | |
3375 | int target_errno; | |
3376 | ||
3377 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3378 | if (fd == -1) | |
3379 | return -1; | |
3380 | ||
3381 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3382 | ||
3383 | /* Start by reading up to 4K at a time. The target will throttle | |
3384 | this number down if necessary. */ | |
3385 | buf_alloc = 4096; | |
3386 | buf = xmalloc (buf_alloc); | |
3387 | buf_pos = 0; | |
3388 | while (1) | |
3389 | { | |
3390 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3391 | buf_alloc - buf_pos - padding, buf_pos, | |
3392 | &target_errno); | |
3393 | if (n < 0) | |
3394 | { | |
3395 | /* An error occurred. */ | |
3396 | do_cleanups (close_cleanup); | |
3397 | xfree (buf); | |
3398 | return -1; | |
3399 | } | |
3400 | else if (n == 0) | |
3401 | { | |
3402 | /* Read all there was. */ | |
3403 | do_cleanups (close_cleanup); | |
3404 | if (buf_pos == 0) | |
3405 | xfree (buf); | |
3406 | else | |
3407 | *buf_p = buf; | |
3408 | return buf_pos; | |
3409 | } | |
3410 | ||
3411 | buf_pos += n; | |
3412 | ||
3413 | /* If the buffer is filling up, expand it. */ | |
3414 | if (buf_alloc < buf_pos * 2) | |
3415 | { | |
3416 | buf_alloc *= 2; | |
3417 | buf = xrealloc (buf, buf_alloc); | |
3418 | } | |
3419 | ||
3420 | QUIT; | |
3421 | } | |
3422 | } | |
3423 | ||
3424 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3425 | the size of the transferred data. See the declaration in "target.h" | |
3426 | function for more information about the return value. */ | |
3427 | ||
3428 | LONGEST | |
3429 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3430 | { | |
3431 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3432 | } | |
3433 | ||
3434 | /* Read target file FILENAME. The result is NUL-terminated and | |
3435 | returned as a string, allocated using xmalloc. If an error occurs | |
3436 | or the transfer is unsupported, NULL is returned. Empty objects | |
3437 | are returned as allocated but empty strings. A warning is issued | |
3438 | if the result contains any embedded NUL bytes. */ | |
3439 | ||
3440 | char * | |
3441 | target_fileio_read_stralloc (const char *filename) | |
3442 | { | |
39086a0e PA |
3443 | gdb_byte *buffer; |
3444 | char *bufstr; | |
7313baad UW |
3445 | LONGEST i, transferred; |
3446 | ||
39086a0e PA |
3447 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3448 | bufstr = (char *) buffer; | |
7313baad UW |
3449 | |
3450 | if (transferred < 0) | |
3451 | return NULL; | |
3452 | ||
3453 | if (transferred == 0) | |
3454 | return xstrdup (""); | |
3455 | ||
39086a0e | 3456 | bufstr[transferred] = 0; |
7313baad UW |
3457 | |
3458 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3459 | for (i = strlen (bufstr); i < transferred; i++) |
3460 | if (bufstr[i] != 0) | |
7313baad UW |
3461 | { |
3462 | warning (_("target file %s " | |
3463 | "contained unexpected null characters"), | |
3464 | filename); | |
3465 | break; | |
3466 | } | |
3467 | ||
39086a0e | 3468 | return bufstr; |
7313baad UW |
3469 | } |
3470 | ||
3471 | ||
e0d24f8d | 3472 | static int |
31568a15 TT |
3473 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3474 | CORE_ADDR addr, int len) | |
e0d24f8d | 3475 | { |
f5656ead | 3476 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3477 | } |
3478 | ||
5009afc5 AS |
3479 | static int |
3480 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3481 | CORE_ADDR addr, | |
3482 | CORE_ADDR start, int length) | |
3483 | { | |
3484 | return addr >= start && addr < start + length; | |
3485 | } | |
3486 | ||
c2250ad1 UW |
3487 | static struct gdbarch * |
3488 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3489 | { | |
f5656ead | 3490 | return target_gdbarch (); |
c2250ad1 UW |
3491 | } |
3492 | ||
c906108c | 3493 | static int |
fba45db2 | 3494 | return_zero (void) |
c906108c SS |
3495 | { |
3496 | return 0; | |
3497 | } | |
3498 | ||
1b67eb02 AS |
3499 | static void * |
3500 | return_null (void) | |
3501 | { | |
3502 | return 0; | |
3503 | } | |
3504 | ||
ed9a39eb JM |
3505 | /* |
3506 | * Find the next target down the stack from the specified target. | |
3507 | */ | |
3508 | ||
3509 | struct target_ops * | |
fba45db2 | 3510 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3511 | { |
258b763a | 3512 | return t->beneath; |
ed9a39eb JM |
3513 | } |
3514 | ||
8b06beed TT |
3515 | /* See target.h. */ |
3516 | ||
3517 | struct target_ops * | |
3518 | find_target_at (enum strata stratum) | |
3519 | { | |
3520 | struct target_ops *t; | |
3521 | ||
3522 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3523 | if (t->to_stratum == stratum) | |
3524 | return t; | |
3525 | ||
3526 | return NULL; | |
3527 | } | |
3528 | ||
c906108c SS |
3529 | \f |
3530 | /* The inferior process has died. Long live the inferior! */ | |
3531 | ||
3532 | void | |
fba45db2 | 3533 | generic_mourn_inferior (void) |
c906108c | 3534 | { |
7f9f62ba | 3535 | ptid_t ptid; |
c906108c | 3536 | |
7f9f62ba | 3537 | ptid = inferior_ptid; |
39f77062 | 3538 | inferior_ptid = null_ptid; |
7f9f62ba | 3539 | |
f59f708a PA |
3540 | /* Mark breakpoints uninserted in case something tries to delete a |
3541 | breakpoint while we delete the inferior's threads (which would | |
3542 | fail, since the inferior is long gone). */ | |
3543 | mark_breakpoints_out (); | |
3544 | ||
7f9f62ba PA |
3545 | if (!ptid_equal (ptid, null_ptid)) |
3546 | { | |
3547 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3548 | exit_inferior (pid); |
7f9f62ba PA |
3549 | } |
3550 | ||
f59f708a PA |
3551 | /* Note this wipes step-resume breakpoints, so needs to be done |
3552 | after exit_inferior, which ends up referencing the step-resume | |
3553 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3554 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3555 | |
c906108c SS |
3556 | registers_changed (); |
3557 | ||
c906108c SS |
3558 | reopen_exec_file (); |
3559 | reinit_frame_cache (); | |
3560 | ||
9a4105ab AC |
3561 | if (deprecated_detach_hook) |
3562 | deprecated_detach_hook (); | |
c906108c SS |
3563 | } |
3564 | \f | |
fd0a2a6f MK |
3565 | /* Convert a normal process ID to a string. Returns the string in a |
3566 | static buffer. */ | |
c906108c SS |
3567 | |
3568 | char * | |
39f77062 | 3569 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3570 | { |
fd0a2a6f | 3571 | static char buf[32]; |
c906108c | 3572 | |
5fff8fc0 | 3573 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3574 | return buf; |
3575 | } | |
3576 | ||
2c0b251b | 3577 | static char * |
117de6a9 PA |
3578 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3579 | { | |
3580 | return normal_pid_to_str (ptid); | |
3581 | } | |
3582 | ||
9b4eba8e HZ |
3583 | /* Error-catcher for target_find_memory_regions. */ |
3584 | static int | |
2e73927c TT |
3585 | dummy_find_memory_regions (struct target_ops *self, |
3586 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3587 | { |
9b4eba8e | 3588 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3589 | return 0; |
3590 | } | |
3591 | ||
9b4eba8e HZ |
3592 | /* Error-catcher for target_make_corefile_notes. */ |
3593 | static char * | |
fc6691b2 TT |
3594 | dummy_make_corefile_notes (struct target_ops *self, |
3595 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3596 | { |
9b4eba8e | 3597 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3598 | return NULL; |
3599 | } | |
3600 | ||
c906108c SS |
3601 | /* Set up the handful of non-empty slots needed by the dummy target |
3602 | vector. */ | |
3603 | ||
3604 | static void | |
fba45db2 | 3605 | init_dummy_target (void) |
c906108c SS |
3606 | { |
3607 | dummy_target.to_shortname = "None"; | |
3608 | dummy_target.to_longname = "None"; | |
3609 | dummy_target.to_doc = ""; | |
c906108c | 3610 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3611 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3612 | dummy_target.to_supports_disable_randomization |
3613 | = find_default_supports_disable_randomization; | |
117de6a9 | 3614 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3615 | dummy_target.to_stratum = dummy_stratum; |
c35b1492 PA |
3616 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3617 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3618 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3619 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3620 | dummy_target.to_has_execution |
3621 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3622 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3623 | |
3624 | install_dummy_methods (&dummy_target); | |
c906108c | 3625 | } |
c906108c | 3626 | \f |
c906108c | 3627 | static void |
fba45db2 | 3628 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3629 | { |
3630 | debug_target.to_open (args, from_tty); | |
3631 | ||
96baa820 | 3632 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3633 | } |
3634 | ||
f1c07ab0 | 3635 | void |
460014f5 | 3636 | target_close (struct target_ops *targ) |
f1c07ab0 | 3637 | { |
7fdc1521 TT |
3638 | gdb_assert (!target_is_pushed (targ)); |
3639 | ||
f1c07ab0 | 3640 | if (targ->to_xclose != NULL) |
460014f5 | 3641 | targ->to_xclose (targ); |
f1c07ab0 | 3642 | else if (targ->to_close != NULL) |
de90e03d | 3643 | targ->to_close (targ); |
947b8855 PA |
3644 | |
3645 | if (targetdebug) | |
460014f5 | 3646 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3647 | } |
3648 | ||
136d6dae VP |
3649 | void |
3650 | target_attach (char *args, int from_tty) | |
3651 | { | |
e9a29200 TT |
3652 | current_target.to_attach (¤t_target, args, from_tty); |
3653 | if (targetdebug) | |
3654 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3655 | args, from_tty); | |
136d6dae VP |
3656 | } |
3657 | ||
28439f5e PA |
3658 | int |
3659 | target_thread_alive (ptid_t ptid) | |
c906108c | 3660 | { |
28439f5e | 3661 | struct target_ops *t; |
5d502164 | 3662 | |
28439f5e PA |
3663 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3664 | { | |
3665 | if (t->to_thread_alive != NULL) | |
3666 | { | |
3667 | int retval; | |
c906108c | 3668 | |
28439f5e PA |
3669 | retval = t->to_thread_alive (t, ptid); |
3670 | if (targetdebug) | |
3671 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3672 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3673 | |
3674 | return retval; | |
3675 | } | |
3676 | } | |
3677 | ||
3678 | return 0; | |
3679 | } | |
3680 | ||
3681 | void | |
3682 | target_find_new_threads (void) | |
3683 | { | |
3684 | struct target_ops *t; | |
5d502164 | 3685 | |
28439f5e PA |
3686 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3687 | { | |
3688 | if (t->to_find_new_threads != NULL) | |
3689 | { | |
3690 | t->to_find_new_threads (t); | |
3691 | if (targetdebug) | |
3692 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3693 | ||
3694 | return; | |
3695 | } | |
3696 | } | |
c906108c SS |
3697 | } |
3698 | ||
d914c394 SS |
3699 | void |
3700 | target_stop (ptid_t ptid) | |
3701 | { | |
3702 | if (!may_stop) | |
3703 | { | |
3704 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3705 | return; | |
3706 | } | |
3707 | ||
1eab8a48 | 3708 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3709 | } |
3710 | ||
c906108c | 3711 | static void |
f045800c | 3712 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3713 | { |
f045800c | 3714 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3715 | |
28439f5e | 3716 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3717 | } |
3718 | ||
09826ec5 PA |
3719 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3720 | result. The LIST incoming argument is released. */ | |
3721 | ||
3722 | static char * | |
3723 | str_comma_list_concat_elem (char *list, const char *elem) | |
3724 | { | |
3725 | if (list == NULL) | |
3726 | return xstrdup (elem); | |
3727 | else | |
3728 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3729 | } | |
3730 | ||
3731 | /* Helper for target_options_to_string. If OPT is present in | |
3732 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3733 | Returns the new resulting string. OPT is removed from | |
3734 | TARGET_OPTIONS. */ | |
3735 | ||
3736 | static char * | |
3737 | do_option (int *target_options, char *ret, | |
3738 | int opt, char *opt_str) | |
3739 | { | |
3740 | if ((*target_options & opt) != 0) | |
3741 | { | |
3742 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3743 | *target_options &= ~opt; | |
3744 | } | |
3745 | ||
3746 | return ret; | |
3747 | } | |
3748 | ||
3749 | char * | |
3750 | target_options_to_string (int target_options) | |
3751 | { | |
3752 | char *ret = NULL; | |
3753 | ||
3754 | #define DO_TARG_OPTION(OPT) \ | |
3755 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3756 | ||
3757 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3758 | ||
3759 | if (target_options != 0) | |
3760 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3761 | ||
3762 | if (ret == NULL) | |
3763 | ret = xstrdup (""); | |
3764 | return ret; | |
3765 | } | |
3766 | ||
bf0c5130 | 3767 | static void |
56be3814 UW |
3768 | debug_print_register (const char * func, |
3769 | struct regcache *regcache, int regno) | |
bf0c5130 | 3770 | { |
f8d29908 | 3771 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3772 | |
bf0c5130 | 3773 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3774 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3775 | && gdbarch_register_name (gdbarch, regno) != NULL |
3776 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3777 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3778 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3779 | else |
3780 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3781 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3782 | { |
e17a4113 | 3783 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3784 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3785 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3786 | |
0ff58721 | 3787 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3788 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3789 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3790 | { |
3791 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3792 | } | |
81c4a259 | 3793 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3794 | { |
e17a4113 | 3795 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3796 | |
0b1553bc UW |
3797 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3798 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3799 | } |
3800 | } | |
3801 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3802 | } | |
3803 | ||
28439f5e PA |
3804 | void |
3805 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3806 | { |
28439f5e | 3807 | struct target_ops *t; |
5d502164 | 3808 | |
28439f5e PA |
3809 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3810 | { | |
3811 | if (t->to_fetch_registers != NULL) | |
3812 | { | |
3813 | t->to_fetch_registers (t, regcache, regno); | |
3814 | if (targetdebug) | |
3815 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3816 | return; | |
3817 | } | |
3818 | } | |
c906108c SS |
3819 | } |
3820 | ||
28439f5e PA |
3821 | void |
3822 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3823 | { |
28439f5e | 3824 | struct target_ops *t; |
5d502164 | 3825 | |
d914c394 SS |
3826 | if (!may_write_registers) |
3827 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3828 | ||
6b84065d TT |
3829 | current_target.to_store_registers (¤t_target, regcache, regno); |
3830 | if (targetdebug) | |
28439f5e | 3831 | { |
6b84065d | 3832 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3833 | } |
c906108c SS |
3834 | } |
3835 | ||
dc146f7c VP |
3836 | int |
3837 | target_core_of_thread (ptid_t ptid) | |
3838 | { | |
3839 | struct target_ops *t; | |
3840 | ||
3841 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3842 | { | |
3843 | if (t->to_core_of_thread != NULL) | |
3844 | { | |
3845 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 3846 | |
dc146f7c | 3847 | if (targetdebug) |
3e43a32a MS |
3848 | fprintf_unfiltered (gdb_stdlog, |
3849 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 3850 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
3851 | return retval; |
3852 | } | |
3853 | } | |
3854 | ||
3855 | return -1; | |
3856 | } | |
3857 | ||
4a5e7a5b PA |
3858 | int |
3859 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3860 | { | |
3861 | struct target_ops *t; | |
3862 | ||
3863 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3864 | { | |
3865 | if (t->to_verify_memory != NULL) | |
3866 | { | |
3867 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 3868 | |
4a5e7a5b | 3869 | if (targetdebug) |
3e43a32a MS |
3870 | fprintf_unfiltered (gdb_stdlog, |
3871 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 3872 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
3873 | pulongest (size), |
3874 | retval); | |
3875 | return retval; | |
3876 | } | |
3877 | } | |
3878 | ||
3879 | tcomplain (); | |
3880 | } | |
3881 | ||
9c06b0b4 TJB |
3882 | /* The documentation for this function is in its prototype declaration in |
3883 | target.h. */ | |
3884 | ||
3885 | int | |
3886 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3887 | { | |
3888 | struct target_ops *t; | |
3889 | ||
3890 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3891 | if (t->to_insert_mask_watchpoint != NULL) | |
3892 | { | |
3893 | int ret; | |
3894 | ||
3895 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
3896 | ||
3897 | if (targetdebug) | |
3898 | fprintf_unfiltered (gdb_stdlog, "\ | |
3899 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
3900 | core_addr_to_string (addr), | |
3901 | core_addr_to_string (mask), rw, ret); | |
3902 | ||
3903 | return ret; | |
3904 | } | |
3905 | ||
3906 | return 1; | |
3907 | } | |
3908 | ||
3909 | /* The documentation for this function is in its prototype declaration in | |
3910 | target.h. */ | |
3911 | ||
3912 | int | |
3913 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3914 | { | |
3915 | struct target_ops *t; | |
3916 | ||
3917 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3918 | if (t->to_remove_mask_watchpoint != NULL) | |
3919 | { | |
3920 | int ret; | |
3921 | ||
3922 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
3923 | ||
3924 | if (targetdebug) | |
3925 | fprintf_unfiltered (gdb_stdlog, "\ | |
3926 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
3927 | core_addr_to_string (addr), | |
3928 | core_addr_to_string (mask), rw, ret); | |
3929 | ||
3930 | return ret; | |
3931 | } | |
3932 | ||
3933 | return 1; | |
3934 | } | |
3935 | ||
3936 | /* The documentation for this function is in its prototype declaration | |
3937 | in target.h. */ | |
3938 | ||
3939 | int | |
3940 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3941 | { | |
3942 | struct target_ops *t; | |
3943 | ||
3944 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3945 | if (t->to_masked_watch_num_registers != NULL) | |
3946 | return t->to_masked_watch_num_registers (t, addr, mask); | |
3947 | ||
3948 | return -1; | |
3949 | } | |
3950 | ||
f1310107 TJB |
3951 | /* The documentation for this function is in its prototype declaration |
3952 | in target.h. */ | |
3953 | ||
3954 | int | |
3955 | target_ranged_break_num_registers (void) | |
3956 | { | |
3957 | struct target_ops *t; | |
3958 | ||
3959 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3960 | if (t->to_ranged_break_num_registers != NULL) | |
3961 | return t->to_ranged_break_num_registers (t); | |
3962 | ||
3963 | return -1; | |
3964 | } | |
3965 | ||
02d27625 MM |
3966 | /* See target.h. */ |
3967 | ||
02d27625 MM |
3968 | struct btrace_target_info * |
3969 | target_enable_btrace (ptid_t ptid) | |
3970 | { | |
3971 | struct target_ops *t; | |
3972 | ||
3973 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3974 | if (t->to_enable_btrace != NULL) | |
e3c49f88 | 3975 | return t->to_enable_btrace (t, ptid); |
02d27625 MM |
3976 | |
3977 | tcomplain (); | |
3978 | return NULL; | |
3979 | } | |
3980 | ||
3981 | /* See target.h. */ | |
3982 | ||
3983 | void | |
3984 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3985 | { | |
3986 | struct target_ops *t; | |
3987 | ||
3988 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3989 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 | 3990 | { |
25e95349 | 3991 | t->to_disable_btrace (t, btinfo); |
d92f7ee3 SDJ |
3992 | return; |
3993 | } | |
02d27625 MM |
3994 | |
3995 | tcomplain (); | |
3996 | } | |
3997 | ||
3998 | /* See target.h. */ | |
3999 | ||
4000 | void | |
4001 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4002 | { | |
4003 | struct target_ops *t; | |
4004 | ||
4005 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4006 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 | 4007 | { |
1777056d | 4008 | t->to_teardown_btrace (t, btinfo); |
d92f7ee3 SDJ |
4009 | return; |
4010 | } | |
02d27625 MM |
4011 | |
4012 | tcomplain (); | |
4013 | } | |
4014 | ||
4015 | /* See target.h. */ | |
4016 | ||
969c39fb MM |
4017 | enum btrace_error |
4018 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
4019 | struct btrace_target_info *btinfo, | |
02d27625 MM |
4020 | enum btrace_read_type type) |
4021 | { | |
4022 | struct target_ops *t; | |
4023 | ||
4024 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4025 | if (t->to_read_btrace != NULL) | |
39c49f83 | 4026 | return t->to_read_btrace (t, btrace, btinfo, type); |
02d27625 MM |
4027 | |
4028 | tcomplain (); | |
969c39fb | 4029 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
4030 | } |
4031 | ||
d02ed0bb MM |
4032 | /* See target.h. */ |
4033 | ||
7c1687a9 MM |
4034 | void |
4035 | target_stop_recording (void) | |
4036 | { | |
4037 | struct target_ops *t; | |
4038 | ||
4039 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4040 | if (t->to_stop_recording != NULL) | |
4041 | { | |
c6cd7c02 | 4042 | t->to_stop_recording (t); |
7c1687a9 MM |
4043 | return; |
4044 | } | |
4045 | ||
4046 | /* This is optional. */ | |
4047 | } | |
4048 | ||
4049 | /* See target.h. */ | |
4050 | ||
d02ed0bb MM |
4051 | void |
4052 | target_info_record (void) | |
4053 | { | |
4054 | struct target_ops *t; | |
4055 | ||
4056 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4057 | if (t->to_info_record != NULL) | |
4058 | { | |
630d6a4a | 4059 | t->to_info_record (t); |
d02ed0bb MM |
4060 | return; |
4061 | } | |
4062 | ||
4063 | tcomplain (); | |
4064 | } | |
4065 | ||
4066 | /* See target.h. */ | |
4067 | ||
4068 | void | |
85e1311a | 4069 | target_save_record (const char *filename) |
d02ed0bb MM |
4070 | { |
4071 | struct target_ops *t; | |
4072 | ||
4073 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4074 | if (t->to_save_record != NULL) | |
4075 | { | |
1390f529 | 4076 | t->to_save_record (t, filename); |
d02ed0bb MM |
4077 | return; |
4078 | } | |
4079 | ||
4080 | tcomplain (); | |
4081 | } | |
4082 | ||
4083 | /* See target.h. */ | |
4084 | ||
4085 | int | |
4086 | target_supports_delete_record (void) | |
4087 | { | |
4088 | struct target_ops *t; | |
4089 | ||
4090 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4091 | if (t->to_delete_record != NULL) | |
4092 | return 1; | |
4093 | ||
4094 | return 0; | |
4095 | } | |
4096 | ||
4097 | /* See target.h. */ | |
4098 | ||
4099 | void | |
4100 | target_delete_record (void) | |
4101 | { | |
4102 | struct target_ops *t; | |
4103 | ||
4104 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4105 | if (t->to_delete_record != NULL) | |
4106 | { | |
d1b55219 | 4107 | t->to_delete_record (t); |
d02ed0bb MM |
4108 | return; |
4109 | } | |
4110 | ||
4111 | tcomplain (); | |
4112 | } | |
4113 | ||
4114 | /* See target.h. */ | |
4115 | ||
4116 | int | |
4117 | target_record_is_replaying (void) | |
4118 | { | |
4119 | struct target_ops *t; | |
4120 | ||
4121 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4122 | if (t->to_record_is_replaying != NULL) | |
1c63c994 | 4123 | return t->to_record_is_replaying (t); |
d02ed0bb MM |
4124 | |
4125 | return 0; | |
4126 | } | |
4127 | ||
4128 | /* See target.h. */ | |
4129 | ||
4130 | void | |
4131 | target_goto_record_begin (void) | |
4132 | { | |
4133 | struct target_ops *t; | |
4134 | ||
4135 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4136 | if (t->to_goto_record_begin != NULL) | |
4137 | { | |
08475817 | 4138 | t->to_goto_record_begin (t); |
d02ed0bb MM |
4139 | return; |
4140 | } | |
4141 | ||
4142 | tcomplain (); | |
4143 | } | |
4144 | ||
4145 | /* See target.h. */ | |
4146 | ||
4147 | void | |
4148 | target_goto_record_end (void) | |
4149 | { | |
4150 | struct target_ops *t; | |
4151 | ||
4152 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4153 | if (t->to_goto_record_end != NULL) | |
4154 | { | |
307a1b91 | 4155 | t->to_goto_record_end (t); |
d02ed0bb MM |
4156 | return; |
4157 | } | |
4158 | ||
4159 | tcomplain (); | |
4160 | } | |
4161 | ||
4162 | /* See target.h. */ | |
4163 | ||
4164 | void | |
4165 | target_goto_record (ULONGEST insn) | |
4166 | { | |
4167 | struct target_ops *t; | |
4168 | ||
4169 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4170 | if (t->to_goto_record != NULL) | |
4171 | { | |
606183ac | 4172 | t->to_goto_record (t, insn); |
d02ed0bb MM |
4173 | return; |
4174 | } | |
4175 | ||
4176 | tcomplain (); | |
4177 | } | |
4178 | ||
67c86d06 MM |
4179 | /* See target.h. */ |
4180 | ||
4181 | void | |
4182 | target_insn_history (int size, int flags) | |
4183 | { | |
4184 | struct target_ops *t; | |
4185 | ||
4186 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4187 | if (t->to_insn_history != NULL) | |
4188 | { | |
7a6c5609 | 4189 | t->to_insn_history (t, size, flags); |
67c86d06 MM |
4190 | return; |
4191 | } | |
4192 | ||
4193 | tcomplain (); | |
4194 | } | |
4195 | ||
4196 | /* See target.h. */ | |
4197 | ||
4198 | void | |
4199 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4200 | { | |
4201 | struct target_ops *t; | |
4202 | ||
4203 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4204 | if (t->to_insn_history_from != NULL) | |
4205 | { | |
9abc3ff3 | 4206 | t->to_insn_history_from (t, from, size, flags); |
67c86d06 MM |
4207 | return; |
4208 | } | |
4209 | ||
4210 | tcomplain (); | |
4211 | } | |
4212 | ||
4213 | /* See target.h. */ | |
4214 | ||
4215 | void | |
4216 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4217 | { | |
4218 | struct target_ops *t; | |
4219 | ||
4220 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4221 | if (t->to_insn_history_range != NULL) | |
4222 | { | |
4e99c6b7 | 4223 | t->to_insn_history_range (t, begin, end, flags); |
67c86d06 MM |
4224 | return; |
4225 | } | |
4226 | ||
4227 | tcomplain (); | |
4228 | } | |
4229 | ||
15984c13 MM |
4230 | /* See target.h. */ |
4231 | ||
4232 | void | |
4233 | target_call_history (int size, int flags) | |
4234 | { | |
4235 | struct target_ops *t; | |
4236 | ||
4237 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4238 | if (t->to_call_history != NULL) | |
4239 | { | |
5df2fcba | 4240 | t->to_call_history (t, size, flags); |
15984c13 MM |
4241 | return; |
4242 | } | |
4243 | ||
4244 | tcomplain (); | |
4245 | } | |
4246 | ||
4247 | /* See target.h. */ | |
4248 | ||
4249 | void | |
4250 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4251 | { | |
4252 | struct target_ops *t; | |
4253 | ||
4254 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4255 | if (t->to_call_history_from != NULL) | |
4256 | { | |
ec0aea04 | 4257 | t->to_call_history_from (t, begin, size, flags); |
15984c13 MM |
4258 | return; |
4259 | } | |
4260 | ||
4261 | tcomplain (); | |
4262 | } | |
4263 | ||
4264 | /* See target.h. */ | |
4265 | ||
4266 | void | |
4267 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4268 | { | |
4269 | struct target_ops *t; | |
4270 | ||
4271 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4272 | if (t->to_call_history_range != NULL) | |
4273 | { | |
f0d960ea | 4274 | t->to_call_history_range (t, begin, end, flags); |
15984c13 MM |
4275 | return; |
4276 | } | |
4277 | ||
4278 | tcomplain (); | |
4279 | } | |
4280 | ||
c906108c | 4281 | static void |
f32dbf8c | 4282 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4283 | { |
f32dbf8c | 4284 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4285 | |
96baa820 | 4286 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4287 | } |
4288 | ||
ea001bdc MM |
4289 | /* See target.h. */ |
4290 | ||
4291 | const struct frame_unwind * | |
4292 | target_get_unwinder (void) | |
4293 | { | |
4294 | struct target_ops *t; | |
4295 | ||
4296 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4297 | if (t->to_get_unwinder != NULL) | |
4298 | return t->to_get_unwinder; | |
4299 | ||
4300 | return NULL; | |
4301 | } | |
4302 | ||
4303 | /* See target.h. */ | |
4304 | ||
4305 | const struct frame_unwind * | |
4306 | target_get_tailcall_unwinder (void) | |
4307 | { | |
4308 | struct target_ops *t; | |
4309 | ||
4310 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4311 | if (t->to_get_tailcall_unwinder != NULL) | |
4312 | return t->to_get_tailcall_unwinder; | |
4313 | ||
4314 | return NULL; | |
4315 | } | |
4316 | ||
118e6252 MM |
4317 | /* See target.h. */ |
4318 | ||
4319 | CORE_ADDR | |
4320 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4321 | struct gdbarch *gdbarch) | |
4322 | { | |
4323 | for (; ops != NULL; ops = ops->beneath) | |
4324 | if (ops->to_decr_pc_after_break != NULL) | |
4325 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4326 | ||
4327 | return gdbarch_decr_pc_after_break (gdbarch); | |
4328 | } | |
4329 | ||
4330 | /* See target.h. */ | |
4331 | ||
4332 | CORE_ADDR | |
4333 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4334 | { | |
4335 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4336 | } | |
4337 | ||
c906108c | 4338 | static int |
961cb7b5 | 4339 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4340 | int write, struct mem_attrib *attrib, |
4341 | struct target_ops *target) | |
c906108c SS |
4342 | { |
4343 | int retval; | |
4344 | ||
c8e73a31 AC |
4345 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4346 | attrib, target); | |
c906108c | 4347 | |
96baa820 | 4348 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4349 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4350 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4351 | write ? "write" : "read", retval); |
c906108c | 4352 | |
c906108c SS |
4353 | if (retval > 0) |
4354 | { | |
4355 | int i; | |
4356 | ||
96baa820 | 4357 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4358 | for (i = 0; i < retval; i++) |
4359 | { | |
53b71562 | 4360 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4361 | { |
4362 | if (targetdebug < 2 && i > 0) | |
4363 | { | |
4364 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4365 | break; | |
4366 | } | |
4367 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4368 | } | |
2bc416ba | 4369 | |
96baa820 | 4370 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4371 | } |
4372 | } | |
4373 | ||
96baa820 | 4374 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4375 | |
4376 | return retval; | |
4377 | } | |
4378 | ||
4379 | static void | |
fba45db2 | 4380 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4381 | { |
4382 | debug_target.to_files_info (target); | |
4383 | ||
96baa820 | 4384 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4385 | } |
4386 | ||
4387 | static int | |
3db08215 | 4388 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4389 | struct bp_target_info *bp_tgt) |
c906108c SS |
4390 | { |
4391 | int retval; | |
4392 | ||
6b84065d | 4393 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4394 | |
96baa820 | 4395 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4396 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4397 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4398 | (unsigned long) retval); |
c906108c SS |
4399 | return retval; |
4400 | } | |
4401 | ||
4402 | static int | |
3db08215 | 4403 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4404 | struct bp_target_info *bp_tgt) |
c906108c SS |
4405 | { |
4406 | int retval; | |
4407 | ||
6b84065d | 4408 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4409 | |
96baa820 | 4410 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4411 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4412 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4413 | (unsigned long) retval); |
c906108c SS |
4414 | return retval; |
4415 | } | |
4416 | ||
ccaa32c7 | 4417 | static int |
5461485a TT |
4418 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4419 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4420 | { |
4421 | int retval; | |
4422 | ||
5461485a TT |
4423 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4424 | type, cnt, from_tty); | |
ccaa32c7 GS |
4425 | |
4426 | fprintf_unfiltered (gdb_stdlog, | |
4427 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4428 | (unsigned long) type, | |
4429 | (unsigned long) cnt, | |
4430 | (unsigned long) from_tty, | |
4431 | (unsigned long) retval); | |
4432 | return retval; | |
4433 | } | |
4434 | ||
e0d24f8d | 4435 | static int |
31568a15 TT |
4436 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4437 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4438 | { |
4439 | CORE_ADDR retval; | |
4440 | ||
31568a15 TT |
4441 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4442 | addr, len); | |
e0d24f8d WZ |
4443 | |
4444 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4445 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4446 | core_addr_to_string (addr), (unsigned long) len, | |
4447 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4448 | return retval; |
4449 | } | |
4450 | ||
0cf6dd15 | 4451 | static int |
c3a5ff89 TT |
4452 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4453 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4454 | struct expression *cond) |
4455 | { | |
4456 | int retval; | |
4457 | ||
c3a5ff89 TT |
4458 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4459 | addr, len, | |
3e43a32a | 4460 | rw, cond); |
0cf6dd15 TJB |
4461 | |
4462 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4463 | "target_can_accel_watchpoint_condition " |
4464 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4465 | core_addr_to_string (addr), len, rw, |
4466 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4467 | return retval; |
4468 | } | |
4469 | ||
ccaa32c7 | 4470 | static int |
6a109b6b | 4471 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4472 | { |
4473 | int retval; | |
4474 | ||
6a109b6b | 4475 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4476 | |
4477 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4478 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4479 | (unsigned long) retval); |
4480 | return retval; | |
4481 | } | |
4482 | ||
4aa7a7f5 JJ |
4483 | static int |
4484 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4485 | { |
4aa7a7f5 | 4486 | int retval; |
ccaa32c7 | 4487 | |
4aa7a7f5 | 4488 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4489 | |
4490 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4491 | "target_stopped_data_address ([%s]) = %ld\n", |
4492 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4493 | (unsigned long)retval); |
ccaa32c7 GS |
4494 | return retval; |
4495 | } | |
4496 | ||
5009afc5 AS |
4497 | static int |
4498 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4499 | CORE_ADDR addr, | |
4500 | CORE_ADDR start, int length) | |
4501 | { | |
4502 | int retval; | |
4503 | ||
4504 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4505 | start, length); | |
4506 | ||
4507 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4508 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4509 | core_addr_to_string (addr), core_addr_to_string (start), | |
4510 | length, retval); | |
5009afc5 AS |
4511 | return retval; |
4512 | } | |
4513 | ||
ccaa32c7 | 4514 | static int |
23a26771 TT |
4515 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4516 | struct gdbarch *gdbarch, | |
a6d9a66e | 4517 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4518 | { |
4519 | int retval; | |
4520 | ||
23a26771 TT |
4521 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4522 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4523 | |
4524 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4525 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4526 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4527 | (unsigned long) retval); |
4528 | return retval; | |
4529 | } | |
4530 | ||
4531 | static int | |
a64dc96c TT |
4532 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4533 | struct gdbarch *gdbarch, | |
a6d9a66e | 4534 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4535 | { |
4536 | int retval; | |
4537 | ||
a64dc96c TT |
4538 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4539 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4540 | |
4541 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4542 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4543 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4544 | (unsigned long) retval); |
4545 | return retval; | |
4546 | } | |
4547 | ||
4548 | static int | |
7bb99c53 TT |
4549 | debug_to_insert_watchpoint (struct target_ops *self, |
4550 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4551 | struct expression *cond) |
ccaa32c7 GS |
4552 | { |
4553 | int retval; | |
4554 | ||
7bb99c53 TT |
4555 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4556 | addr, len, type, cond); | |
ccaa32c7 GS |
4557 | |
4558 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4559 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4560 | core_addr_to_string (addr), len, type, | |
4561 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4562 | return retval; |
4563 | } | |
4564 | ||
4565 | static int | |
11b5219a TT |
4566 | debug_to_remove_watchpoint (struct target_ops *self, |
4567 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4568 | struct expression *cond) |
ccaa32c7 GS |
4569 | { |
4570 | int retval; | |
4571 | ||
11b5219a TT |
4572 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4573 | addr, len, type, cond); | |
ccaa32c7 GS |
4574 | |
4575 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4576 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4577 | core_addr_to_string (addr), len, type, | |
4578 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4579 | return retval; |
4580 | } | |
4581 | ||
c906108c | 4582 | static void |
c42bf286 | 4583 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4584 | { |
c42bf286 | 4585 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4586 | |
96baa820 | 4587 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4588 | } |
4589 | ||
4590 | static void | |
d2f640d4 | 4591 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4592 | { |
d2f640d4 | 4593 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4594 | |
96baa820 | 4595 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4596 | } |
4597 | ||
4598 | static void | |
2e1e1a19 | 4599 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4600 | { |
2e1e1a19 | 4601 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4602 | |
96baa820 | 4603 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4604 | } |
4605 | ||
4606 | static void | |
e3594fd1 | 4607 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4608 | { |
e3594fd1 | 4609 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4610 | |
96baa820 | 4611 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4612 | } |
4613 | ||
a790ad35 | 4614 | static void |
ae3bd431 | 4615 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4616 | { |
ae3bd431 | 4617 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4618 | |
4619 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4620 | } | |
4621 | ||
c906108c | 4622 | static void |
0a4f40a2 TT |
4623 | debug_to_terminal_info (struct target_ops *self, |
4624 | const char *arg, int from_tty) | |
c906108c | 4625 | { |
0a4f40a2 | 4626 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4627 | |
96baa820 | 4628 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4629 | from_tty); |
4630 | } | |
4631 | ||
c906108c | 4632 | static void |
71a9f134 | 4633 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4634 | { |
71a9f134 | 4635 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4636 | |
96baa820 | 4637 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4638 | } |
4639 | ||
c906108c | 4640 | static void |
2e97a79e | 4641 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4642 | { |
2e97a79e | 4643 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4644 | |
96baa820 | 4645 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4646 | ptid_get_pid (ptid)); |
c906108c SS |
4647 | } |
4648 | ||
77b06cd7 | 4649 | static int |
a863b201 | 4650 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4651 | { |
77b06cd7 TJB |
4652 | int retval; |
4653 | ||
a863b201 | 4654 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4655 | |
4656 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4657 | pid, retval); | |
c906108c | 4658 | |
77b06cd7 | 4659 | return retval; |
c906108c SS |
4660 | } |
4661 | ||
4662 | static int | |
973fc227 | 4663 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4664 | { |
c5aa993b | 4665 | int retval; |
c906108c | 4666 | |
973fc227 | 4667 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4668 | |
96baa820 | 4669 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4670 | pid, retval); |
c906108c SS |
4671 | |
4672 | return retval; | |
4673 | } | |
4674 | ||
77b06cd7 | 4675 | static int |
3ecc7da0 | 4676 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4677 | { |
77b06cd7 TJB |
4678 | int retval; |
4679 | ||
3ecc7da0 | 4680 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4681 | |
77b06cd7 TJB |
4682 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4683 | pid, retval); | |
4684 | ||
4685 | return retval; | |
c906108c SS |
4686 | } |
4687 | ||
4688 | static int | |
e98cf0cd | 4689 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4690 | { |
c5aa993b | 4691 | int retval; |
c906108c | 4692 | |
e98cf0cd | 4693 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4694 | |
96baa820 | 4695 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4696 | pid, retval); |
c906108c SS |
4697 | |
4698 | return retval; | |
4699 | } | |
4700 | ||
77b06cd7 | 4701 | static int |
ba025e51 | 4702 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4703 | { |
77b06cd7 TJB |
4704 | int retval; |
4705 | ||
ba025e51 | 4706 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4707 | |
77b06cd7 TJB |
4708 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4709 | pid, retval); | |
4710 | ||
4711 | return retval; | |
c906108c SS |
4712 | } |
4713 | ||
4714 | static int | |
758e29d2 | 4715 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4716 | { |
c5aa993b | 4717 | int retval; |
c906108c | 4718 | |
758e29d2 | 4719 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4720 | |
96baa820 | 4721 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4722 | pid, retval); |
c906108c SS |
4723 | |
4724 | return retval; | |
4725 | } | |
4726 | ||
c906108c | 4727 | static int |
d796e1d6 TT |
4728 | debug_to_has_exited (struct target_ops *self, |
4729 | int pid, int wait_status, int *exit_status) | |
c906108c | 4730 | { |
c5aa993b | 4731 | int has_exited; |
c906108c | 4732 | |
d796e1d6 TT |
4733 | has_exited = debug_target.to_has_exited (&debug_target, |
4734 | pid, wait_status, exit_status); | |
c906108c | 4735 | |
96baa820 | 4736 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4737 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4738 | |
4739 | return has_exited; | |
4740 | } | |
4741 | ||
c906108c | 4742 | static int |
da82bd6b | 4743 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4744 | { |
4745 | int retval; | |
4746 | ||
da82bd6b | 4747 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4748 | |
96baa820 | 4749 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4750 | |
4751 | return retval; | |
4752 | } | |
4753 | ||
c2250ad1 UW |
4754 | static struct gdbarch * |
4755 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4756 | { | |
4757 | struct gdbarch *retval; | |
4758 | ||
4759 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4760 | ||
3e43a32a MS |
4761 | fprintf_unfiltered (gdb_stdlog, |
4762 | "target_thread_architecture (%s) = %s [%s]\n", | |
4763 | target_pid_to_str (ptid), | |
4764 | host_address_to_string (retval), | |
c2250ad1 UW |
4765 | gdbarch_bfd_arch_info (retval)->printable_name); |
4766 | return retval; | |
4767 | } | |
4768 | ||
c906108c | 4769 | static void |
1eab8a48 | 4770 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4771 | { |
1eab8a48 | 4772 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4773 | |
94cc34af PA |
4774 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4775 | target_pid_to_str (ptid)); | |
c906108c SS |
4776 | } |
4777 | ||
96baa820 | 4778 | static void |
1aac633b | 4779 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4780 | struct ui_file *outbuf) |
96baa820 | 4781 | { |
1aac633b | 4782 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4783 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4784 | } | |
4785 | ||
c906108c | 4786 | static char * |
8dd27370 | 4787 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4788 | { |
c5aa993b | 4789 | char *exec_file; |
c906108c | 4790 | |
8dd27370 | 4791 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4792 | |
96baa820 | 4793 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4794 | pid, exec_file); |
c906108c SS |
4795 | |
4796 | return exec_file; | |
4797 | } | |
4798 | ||
c906108c | 4799 | static void |
fba45db2 | 4800 | setup_target_debug (void) |
c906108c SS |
4801 | { |
4802 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4803 | ||
4804 | current_target.to_open = debug_to_open; | |
c906108c | 4805 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4806 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4807 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4808 | current_target.to_files_info = debug_to_files_info; |
4809 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4810 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4811 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4812 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4813 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4814 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4815 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4816 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4817 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4818 | current_target.to_watchpoint_addr_within_range |
4819 | = debug_to_watchpoint_addr_within_range; | |
4820 | current_target.to_region_ok_for_hw_watchpoint | |
4821 | = debug_to_region_ok_for_hw_watchpoint; | |
4822 | current_target.to_can_accel_watchpoint_condition | |
4823 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4824 | current_target.to_terminal_init = debug_to_terminal_init; |
4825 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4826 | current_target.to_terminal_ours_for_output |
4827 | = debug_to_terminal_ours_for_output; | |
c906108c | 4828 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4829 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4830 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4831 | current_target.to_load = debug_to_load; |
c906108c | 4832 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4833 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4834 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4835 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4836 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4837 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4838 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4839 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4840 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4841 | current_target.to_stop = debug_to_stop; |
96baa820 | 4842 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4843 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4844 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4845 | } |
c906108c | 4846 | \f |
c5aa993b JM |
4847 | |
4848 | static char targ_desc[] = | |
3e43a32a MS |
4849 | "Names of targets and files being debugged.\nShows the entire \ |
4850 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4851 | core-file, and process, if any), as well as the symbol file name."; |
4852 | ||
a53f3625 TT |
4853 | static void |
4854 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4855 | { | |
4856 | error (_("\"monitor\" command not supported by this target.")); | |
4857 | } | |
4858 | ||
96baa820 JM |
4859 | static void |
4860 | do_monitor_command (char *cmd, | |
4861 | int from_tty) | |
4862 | { | |
96baa820 JM |
4863 | target_rcmd (cmd, gdb_stdtarg); |
4864 | } | |
4865 | ||
87680a14 JB |
4866 | /* Print the name of each layers of our target stack. */ |
4867 | ||
4868 | static void | |
4869 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4870 | { | |
4871 | struct target_ops *t; | |
4872 | ||
4873 | printf_filtered (_("The current target stack is:\n")); | |
4874 | ||
4875 | for (t = target_stack; t != NULL; t = t->beneath) | |
4876 | { | |
4877 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4878 | } | |
4879 | } | |
4880 | ||
c6ebd6cf VP |
4881 | /* Controls if async mode is permitted. */ |
4882 | int target_async_permitted = 0; | |
4883 | ||
4884 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4885 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4886 | static int target_async_permitted_1 = 0; |
4887 | ||
4888 | static void | |
9401a810 PA |
4889 | set_target_async_command (char *args, int from_tty, |
4890 | struct cmd_list_element *c) | |
c6ebd6cf | 4891 | { |
c35b1492 | 4892 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4893 | { |
4894 | target_async_permitted_1 = target_async_permitted; | |
4895 | error (_("Cannot change this setting while the inferior is running.")); | |
4896 | } | |
4897 | ||
4898 | target_async_permitted = target_async_permitted_1; | |
4899 | } | |
4900 | ||
4901 | static void | |
9401a810 PA |
4902 | show_target_async_command (struct ui_file *file, int from_tty, |
4903 | struct cmd_list_element *c, | |
4904 | const char *value) | |
c6ebd6cf | 4905 | { |
3e43a32a MS |
4906 | fprintf_filtered (file, |
4907 | _("Controlling the inferior in " | |
4908 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4909 | } |
4910 | ||
d914c394 SS |
4911 | /* Temporary copies of permission settings. */ |
4912 | ||
4913 | static int may_write_registers_1 = 1; | |
4914 | static int may_write_memory_1 = 1; | |
4915 | static int may_insert_breakpoints_1 = 1; | |
4916 | static int may_insert_tracepoints_1 = 1; | |
4917 | static int may_insert_fast_tracepoints_1 = 1; | |
4918 | static int may_stop_1 = 1; | |
4919 | ||
4920 | /* Make the user-set values match the real values again. */ | |
4921 | ||
4922 | void | |
4923 | update_target_permissions (void) | |
4924 | { | |
4925 | may_write_registers_1 = may_write_registers; | |
4926 | may_write_memory_1 = may_write_memory; | |
4927 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4928 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4929 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4930 | may_stop_1 = may_stop; | |
4931 | } | |
4932 | ||
4933 | /* The one function handles (most of) the permission flags in the same | |
4934 | way. */ | |
4935 | ||
4936 | static void | |
4937 | set_target_permissions (char *args, int from_tty, | |
4938 | struct cmd_list_element *c) | |
4939 | { | |
4940 | if (target_has_execution) | |
4941 | { | |
4942 | update_target_permissions (); | |
4943 | error (_("Cannot change this setting while the inferior is running.")); | |
4944 | } | |
4945 | ||
4946 | /* Make the real values match the user-changed values. */ | |
4947 | may_write_registers = may_write_registers_1; | |
4948 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4949 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4950 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4951 | may_stop = may_stop_1; | |
4952 | update_observer_mode (); | |
4953 | } | |
4954 | ||
4955 | /* Set memory write permission independently of observer mode. */ | |
4956 | ||
4957 | static void | |
4958 | set_write_memory_permission (char *args, int from_tty, | |
4959 | struct cmd_list_element *c) | |
4960 | { | |
4961 | /* Make the real values match the user-changed values. */ | |
4962 | may_write_memory = may_write_memory_1; | |
4963 | update_observer_mode (); | |
4964 | } | |
4965 | ||
4966 | ||
c906108c | 4967 | void |
fba45db2 | 4968 | initialize_targets (void) |
c906108c SS |
4969 | { |
4970 | init_dummy_target (); | |
4971 | push_target (&dummy_target); | |
4972 | ||
4973 | add_info ("target", target_info, targ_desc); | |
4974 | add_info ("files", target_info, targ_desc); | |
4975 | ||
ccce17b0 | 4976 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4977 | Set target debugging."), _("\ |
4978 | Show target debugging."), _("\ | |
333dabeb DJ |
4979 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4980 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4981 | command."), |
ccce17b0 YQ |
4982 | NULL, |
4983 | show_targetdebug, | |
4984 | &setdebuglist, &showdebuglist); | |
3a11626d | 4985 | |
2bc416ba | 4986 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4987 | &trust_readonly, _("\ |
4988 | Set mode for reading from readonly sections."), _("\ | |
4989 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4990 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4991 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4992 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4993 | NULL, |
920d2a44 | 4994 | show_trust_readonly, |
e707bbc2 | 4995 | &setlist, &showlist); |
96baa820 JM |
4996 | |
4997 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4998 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4999 | |
87680a14 JB |
5000 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5001 | _("Print the name of each layer of the internal target stack."), | |
5002 | &maintenanceprintlist); | |
5003 | ||
c6ebd6cf VP |
5004 | add_setshow_boolean_cmd ("target-async", no_class, |
5005 | &target_async_permitted_1, _("\ | |
5006 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5007 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5008 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5009 | set_target_async_command, |
5010 | show_target_async_command, | |
c6ebd6cf VP |
5011 | &setlist, |
5012 | &showlist); | |
5013 | ||
d914c394 SS |
5014 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5015 | &may_write_registers_1, _("\ | |
5016 | Set permission to write into registers."), _("\ | |
5017 | Show permission to write into registers."), _("\ | |
5018 | When this permission is on, GDB may write into the target's registers.\n\ | |
5019 | Otherwise, any sort of write attempt will result in an error."), | |
5020 | set_target_permissions, NULL, | |
5021 | &setlist, &showlist); | |
5022 | ||
5023 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5024 | &may_write_memory_1, _("\ | |
5025 | Set permission to write into target memory."), _("\ | |
5026 | Show permission to write into target memory."), _("\ | |
5027 | When this permission is on, GDB may write into the target's memory.\n\ | |
5028 | Otherwise, any sort of write attempt will result in an error."), | |
5029 | set_write_memory_permission, NULL, | |
5030 | &setlist, &showlist); | |
5031 | ||
5032 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5033 | &may_insert_breakpoints_1, _("\ | |
5034 | Set permission to insert breakpoints in the target."), _("\ | |
5035 | Show permission to insert breakpoints in the target."), _("\ | |
5036 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5037 | Otherwise, any sort of insertion attempt will result in an error."), | |
5038 | set_target_permissions, NULL, | |
5039 | &setlist, &showlist); | |
5040 | ||
5041 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5042 | &may_insert_tracepoints_1, _("\ | |
5043 | Set permission to insert tracepoints in the target."), _("\ | |
5044 | Show permission to insert tracepoints in the target."), _("\ | |
5045 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5046 | Otherwise, any sort of insertion attempt will result in an error."), | |
5047 | set_target_permissions, NULL, | |
5048 | &setlist, &showlist); | |
5049 | ||
5050 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5051 | &may_insert_fast_tracepoints_1, _("\ | |
5052 | Set permission to insert fast tracepoints in the target."), _("\ | |
5053 | Show permission to insert fast tracepoints in the target."), _("\ | |
5054 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5055 | Otherwise, any sort of insertion attempt will result in an error."), | |
5056 | set_target_permissions, NULL, | |
5057 | &setlist, &showlist); | |
5058 | ||
5059 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5060 | &may_stop_1, _("\ | |
5061 | Set permission to interrupt or signal the target."), _("\ | |
5062 | Show permission to interrupt or signal the target."), _("\ | |
5063 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5064 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5065 | set_target_permissions, NULL, | |
5066 | &setlist, &showlist); | |
c906108c | 5067 | } |