Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1990-2014 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <errno.h> | |
0e9f083f | 24 | #include <string.h> |
c906108c | 25 | #include "target.h" |
68c765e2 | 26 | #include "target-dcache.h" |
c906108c SS |
27 | #include "gdbcmd.h" |
28 | #include "symtab.h" | |
29 | #include "inferior.h" | |
30 | #include "bfd.h" | |
31 | #include "symfile.h" | |
32 | #include "objfiles.h" | |
4930751a | 33 | #include "dcache.h" |
c906108c | 34 | #include <signal.h> |
4e052eda | 35 | #include "regcache.h" |
0088c768 | 36 | #include "gdb_assert.h" |
b6591e8b | 37 | #include "gdbcore.h" |
9e35dae4 | 38 | #include "exceptions.h" |
424163ea | 39 | #include "target-descriptions.h" |
e1ac3328 | 40 | #include "gdbthread.h" |
b9db4ced | 41 | #include "solib.h" |
07b82ea5 | 42 | #include "exec.h" |
edb3359d | 43 | #include "inline-frame.h" |
2f4d8875 | 44 | #include "tracepoint.h" |
7313baad | 45 | #include "gdb/fileio.h" |
8ffcbaaf | 46 | #include "agent.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
0a4f40a2 | 50 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
31568a15 TT |
55 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
56 | CORE_ADDR, int); | |
e0d24f8d | 57 | |
a53f3625 TT |
58 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
59 | ||
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 | |
a14ed312 | 69 | void target_ignore (void); |
c906108c | 70 | |
a14ed312 | 71 | static void target_command (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static struct target_ops *find_default_run_target (char *); |
c906108c | 74 | |
4ac248ca YQ |
75 | static target_xfer_partial_ftype default_xfer_partial; |
76 | ||
c2250ad1 UW |
77 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
78 | ptid_t ptid); | |
79 | ||
0b5a2719 TT |
80 | static int dummy_find_memory_regions (struct target_ops *self, |
81 | find_memory_region_ftype ignore1, | |
82 | void *ignore2); | |
83 | ||
16f796b1 TT |
84 | static char *dummy_make_corefile_notes (struct target_ops *self, |
85 | bfd *ignore1, int *ignore2); | |
86 | ||
6b84065d TT |
87 | static int find_default_can_async_p (struct target_ops *ignore); |
88 | ||
89 | static int find_default_is_async_p (struct target_ops *ignore); | |
90 | ||
fe31bf5b TT |
91 | static enum exec_direction_kind default_execution_direction |
92 | (struct target_ops *self); | |
93 | ||
1101cb7b TT |
94 | #include "target-delegates.c" |
95 | ||
a14ed312 | 96 | static void init_dummy_target (void); |
c906108c | 97 | |
aa869812 AC |
98 | static struct target_ops debug_target; |
99 | ||
a14ed312 | 100 | static void debug_to_open (char *, int); |
c906108c | 101 | |
f32dbf8c MM |
102 | static void debug_to_prepare_to_store (struct target_ops *self, |
103 | struct regcache *); | |
c906108c | 104 | |
a14ed312 | 105 | static void debug_to_files_info (struct target_ops *); |
c906108c | 106 | |
3db08215 | 107 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 108 | struct bp_target_info *); |
c906108c | 109 | |
3db08215 | 110 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 111 | struct bp_target_info *); |
c906108c | 112 | |
5461485a TT |
113 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
114 | int, int, int); | |
ccaa32c7 | 115 | |
23a26771 TT |
116 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
117 | struct gdbarch *, | |
a6d9a66e | 118 | struct bp_target_info *); |
ccaa32c7 | 119 | |
a64dc96c TT |
120 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
121 | struct gdbarch *, | |
a6d9a66e | 122 | struct bp_target_info *); |
ccaa32c7 | 123 | |
7bb99c53 TT |
124 | static int debug_to_insert_watchpoint (struct target_ops *self, |
125 | CORE_ADDR, int, int, | |
0cf6dd15 | 126 | struct expression *); |
ccaa32c7 | 127 | |
11b5219a TT |
128 | static int debug_to_remove_watchpoint (struct target_ops *self, |
129 | CORE_ADDR, int, int, | |
0cf6dd15 | 130 | struct expression *); |
ccaa32c7 | 131 | |
4aa7a7f5 | 132 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 133 | |
5009afc5 AS |
134 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
135 | CORE_ADDR, CORE_ADDR, int); | |
136 | ||
31568a15 TT |
137 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
138 | CORE_ADDR, int); | |
e0d24f8d | 139 | |
c3a5ff89 TT |
140 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
141 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
142 | struct expression *); |
143 | ||
c42bf286 | 144 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 145 | |
d2f640d4 | 146 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 147 | |
2e1e1a19 | 148 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 149 | |
ae3bd431 | 150 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 151 | |
e3594fd1 | 152 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 153 | |
71a9f134 | 154 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 155 | |
da82bd6b | 156 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 157 | |
1eab8a48 | 158 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 159 | |
c906108c | 160 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 161 | array; the current index into the array; the allocated size of the |
c906108c SS |
162 | array. */ |
163 | struct target_ops **target_structs; | |
164 | unsigned target_struct_size; | |
c906108c SS |
165 | unsigned target_struct_allocsize; |
166 | #define DEFAULT_ALLOCSIZE 10 | |
167 | ||
168 | /* The initial current target, so that there is always a semi-valid | |
169 | current target. */ | |
170 | ||
171 | static struct target_ops dummy_target; | |
172 | ||
173 | /* Top of target stack. */ | |
174 | ||
258b763a | 175 | static struct target_ops *target_stack; |
c906108c SS |
176 | |
177 | /* The target structure we are currently using to talk to a process | |
178 | or file or whatever "inferior" we have. */ | |
179 | ||
180 | struct target_ops current_target; | |
181 | ||
182 | /* Command list for target. */ | |
183 | ||
184 | static struct cmd_list_element *targetlist = NULL; | |
185 | ||
cf7a04e8 DJ |
186 | /* Nonzero if we should trust readonly sections from the |
187 | executable when reading memory. */ | |
188 | ||
189 | static int trust_readonly = 0; | |
190 | ||
8defab1a DJ |
191 | /* Nonzero if we should show true memory content including |
192 | memory breakpoint inserted by gdb. */ | |
193 | ||
194 | static int show_memory_breakpoints = 0; | |
195 | ||
d914c394 SS |
196 | /* These globals control whether GDB attempts to perform these |
197 | operations; they are useful for targets that need to prevent | |
198 | inadvertant disruption, such as in non-stop mode. */ | |
199 | ||
200 | int may_write_registers = 1; | |
201 | ||
202 | int may_write_memory = 1; | |
203 | ||
204 | int may_insert_breakpoints = 1; | |
205 | ||
206 | int may_insert_tracepoints = 1; | |
207 | ||
208 | int may_insert_fast_tracepoints = 1; | |
209 | ||
210 | int may_stop = 1; | |
211 | ||
c906108c SS |
212 | /* Non-zero if we want to see trace of target level stuff. */ |
213 | ||
ccce17b0 | 214 | static unsigned int targetdebug = 0; |
920d2a44 AC |
215 | static void |
216 | show_targetdebug (struct ui_file *file, int from_tty, | |
217 | struct cmd_list_element *c, const char *value) | |
218 | { | |
219 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
220 | } | |
c906108c | 221 | |
a14ed312 | 222 | static void setup_target_debug (void); |
c906108c | 223 | |
c906108c SS |
224 | /* The user just typed 'target' without the name of a target. */ |
225 | ||
c906108c | 226 | static void |
fba45db2 | 227 | target_command (char *arg, int from_tty) |
c906108c SS |
228 | { |
229 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
230 | gdb_stdout); | |
231 | } | |
232 | ||
c35b1492 PA |
233 | /* Default target_has_* methods for process_stratum targets. */ |
234 | ||
235 | int | |
236 | default_child_has_all_memory (struct target_ops *ops) | |
237 | { | |
238 | /* If no inferior selected, then we can't read memory here. */ | |
239 | if (ptid_equal (inferior_ptid, null_ptid)) | |
240 | return 0; | |
241 | ||
242 | return 1; | |
243 | } | |
244 | ||
245 | int | |
246 | default_child_has_memory (struct target_ops *ops) | |
247 | { | |
248 | /* If no inferior selected, then we can't read memory here. */ | |
249 | if (ptid_equal (inferior_ptid, null_ptid)) | |
250 | return 0; | |
251 | ||
252 | return 1; | |
253 | } | |
254 | ||
255 | int | |
256 | default_child_has_stack (struct target_ops *ops) | |
257 | { | |
258 | /* If no inferior selected, there's no stack. */ | |
259 | if (ptid_equal (inferior_ptid, null_ptid)) | |
260 | return 0; | |
261 | ||
262 | return 1; | |
263 | } | |
264 | ||
265 | int | |
266 | default_child_has_registers (struct target_ops *ops) | |
267 | { | |
268 | /* Can't read registers from no inferior. */ | |
269 | if (ptid_equal (inferior_ptid, null_ptid)) | |
270 | return 0; | |
271 | ||
272 | return 1; | |
273 | } | |
274 | ||
275 | int | |
aeaec162 | 276 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
277 | { |
278 | /* If there's no thread selected, then we can't make it run through | |
279 | hoops. */ | |
aeaec162 | 280 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
281 | return 0; |
282 | ||
283 | return 1; | |
284 | } | |
285 | ||
286 | ||
287 | int | |
288 | target_has_all_memory_1 (void) | |
289 | { | |
290 | struct target_ops *t; | |
291 | ||
292 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
293 | if (t->to_has_all_memory (t)) | |
294 | return 1; | |
295 | ||
296 | return 0; | |
297 | } | |
298 | ||
299 | int | |
300 | target_has_memory_1 (void) | |
301 | { | |
302 | struct target_ops *t; | |
303 | ||
304 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
305 | if (t->to_has_memory (t)) | |
306 | return 1; | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
311 | int | |
312 | target_has_stack_1 (void) | |
313 | { | |
314 | struct target_ops *t; | |
315 | ||
316 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
317 | if (t->to_has_stack (t)) | |
318 | return 1; | |
319 | ||
320 | return 0; | |
321 | } | |
322 | ||
323 | int | |
324 | target_has_registers_1 (void) | |
325 | { | |
326 | struct target_ops *t; | |
327 | ||
328 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
329 | if (t->to_has_registers (t)) | |
330 | return 1; | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
335 | int | |
aeaec162 | 336 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
337 | { |
338 | struct target_ops *t; | |
339 | ||
340 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 341 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
342 | return 1; |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
aeaec162 TT |
347 | int |
348 | target_has_execution_current (void) | |
349 | { | |
350 | return target_has_execution_1 (inferior_ptid); | |
351 | } | |
352 | ||
c22a2b88 TT |
353 | /* Complete initialization of T. This ensures that various fields in |
354 | T are set, if needed by the target implementation. */ | |
c906108c SS |
355 | |
356 | void | |
c22a2b88 | 357 | complete_target_initialization (struct target_ops *t) |
c906108c | 358 | { |
0088c768 | 359 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
360 | if (t->to_xfer_partial == NULL) |
361 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 362 | |
c35b1492 PA |
363 | if (t->to_has_all_memory == NULL) |
364 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
365 | ||
366 | if (t->to_has_memory == NULL) | |
367 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
368 | ||
369 | if (t->to_has_stack == NULL) | |
370 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
371 | ||
372 | if (t->to_has_registers == NULL) | |
373 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
374 | ||
375 | if (t->to_has_execution == NULL) | |
aeaec162 | 376 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
377 | |
378 | install_delegators (t); | |
c22a2b88 TT |
379 | } |
380 | ||
381 | /* Add possible target architecture T to the list and add a new | |
382 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
383 | completer if not NULL. */ | |
384 | ||
385 | void | |
386 | add_target_with_completer (struct target_ops *t, | |
387 | completer_ftype *completer) | |
388 | { | |
389 | struct cmd_list_element *c; | |
390 | ||
391 | complete_target_initialization (t); | |
c35b1492 | 392 | |
c906108c SS |
393 | if (!target_structs) |
394 | { | |
395 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
396 | target_structs = (struct target_ops **) xmalloc | |
397 | (target_struct_allocsize * sizeof (*target_structs)); | |
398 | } | |
399 | if (target_struct_size >= target_struct_allocsize) | |
400 | { | |
401 | target_struct_allocsize *= 2; | |
402 | target_structs = (struct target_ops **) | |
c5aa993b JM |
403 | xrealloc ((char *) target_structs, |
404 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
405 | } |
406 | target_structs[target_struct_size++] = t; | |
c906108c SS |
407 | |
408 | if (targetlist == NULL) | |
1bedd215 AC |
409 | add_prefix_cmd ("target", class_run, target_command, _("\ |
410 | Connect to a target machine or process.\n\ | |
c906108c SS |
411 | The first argument is the type or protocol of the target machine.\n\ |
412 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
413 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 414 | `help target ' followed by the protocol name."), |
c906108c | 415 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
416 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
417 | &targetlist); | |
418 | if (completer != NULL) | |
419 | set_cmd_completer (c, completer); | |
420 | } | |
421 | ||
422 | /* Add a possible target architecture to the list. */ | |
423 | ||
424 | void | |
425 | add_target (struct target_ops *t) | |
426 | { | |
427 | add_target_with_completer (t, NULL); | |
c906108c SS |
428 | } |
429 | ||
b48d48eb MM |
430 | /* See target.h. */ |
431 | ||
432 | void | |
433 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
434 | { | |
435 | struct cmd_list_element *c; | |
436 | char *alt; | |
437 | ||
438 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
439 | see PR cli/15104. */ | |
440 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
441 | alt = xstrprintf ("target %s", t->to_shortname); | |
442 | deprecate_cmd (c, alt); | |
443 | } | |
444 | ||
c906108c SS |
445 | /* Stub functions */ |
446 | ||
447 | void | |
fba45db2 | 448 | target_ignore (void) |
c906108c SS |
449 | { |
450 | } | |
451 | ||
7d85a9c0 JB |
452 | void |
453 | target_kill (void) | |
454 | { | |
455 | struct target_ops *t; | |
456 | ||
457 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
458 | if (t->to_kill != NULL) | |
459 | { | |
460 | if (targetdebug) | |
461 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
462 | ||
463 | t->to_kill (t); | |
464 | return; | |
465 | } | |
466 | ||
467 | noprocess (); | |
468 | } | |
469 | ||
11cf8741 JM |
470 | void |
471 | target_load (char *arg, int from_tty) | |
472 | { | |
4e5d721f | 473 | target_dcache_invalidate (); |
71a9f134 | 474 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
475 | } |
476 | ||
947b8855 PA |
477 | void |
478 | target_create_inferior (char *exec_file, char *args, | |
479 | char **env, int from_tty) | |
136d6dae VP |
480 | { |
481 | struct target_ops *t; | |
5d502164 | 482 | |
136d6dae VP |
483 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
484 | { | |
485 | if (t->to_create_inferior != NULL) | |
486 | { | |
487 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
488 | if (targetdebug) |
489 | fprintf_unfiltered (gdb_stdlog, | |
490 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
491 | exec_file, args, from_tty); | |
136d6dae VP |
492 | return; |
493 | } | |
494 | } | |
495 | ||
496 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 497 | _("could not find a target to create inferior")); |
136d6dae VP |
498 | } |
499 | ||
d9d2d8b6 PA |
500 | void |
501 | target_terminal_inferior (void) | |
502 | { | |
503 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 504 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
505 | this point the target is not async yet. However, if sync_execution |
506 | is not set, we know it will become async prior to resume. */ | |
507 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
508 | return; |
509 | ||
510 | /* If GDB is resuming the inferior in the foreground, install | |
511 | inferior's terminal modes. */ | |
d2f640d4 | 512 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 513 | } |
136d6dae | 514 | |
c906108c | 515 | static int |
fba45db2 KB |
516 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
517 | struct target_ops *t) | |
c906108c | 518 | { |
c378eb4e MS |
519 | errno = EIO; /* Can't read/write this location. */ |
520 | return 0; /* No bytes handled. */ | |
c906108c SS |
521 | } |
522 | ||
523 | static void | |
fba45db2 | 524 | tcomplain (void) |
c906108c | 525 | { |
8a3fe4f8 | 526 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
527 | current_target.to_shortname); |
528 | } | |
529 | ||
530 | void | |
fba45db2 | 531 | noprocess (void) |
c906108c | 532 | { |
8a3fe4f8 | 533 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
534 | } |
535 | ||
c906108c | 536 | static void |
0a4f40a2 | 537 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 538 | { |
a3f17187 | 539 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
540 | } |
541 | ||
0ef643c8 JB |
542 | /* A default implementation for the to_get_ada_task_ptid target method. |
543 | ||
544 | This function builds the PTID by using both LWP and TID as part of | |
545 | the PTID lwp and tid elements. The pid used is the pid of the | |
546 | inferior_ptid. */ | |
547 | ||
2c0b251b | 548 | static ptid_t |
1e6b91a4 | 549 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
550 | { |
551 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
552 | } | |
553 | ||
32231432 | 554 | static enum exec_direction_kind |
4c612759 | 555 | default_execution_direction (struct target_ops *self) |
32231432 PA |
556 | { |
557 | if (!target_can_execute_reverse) | |
558 | return EXEC_FORWARD; | |
559 | else if (!target_can_async_p ()) | |
560 | return EXEC_FORWARD; | |
561 | else | |
562 | gdb_assert_not_reached ("\ | |
563 | to_execution_direction must be implemented for reverse async"); | |
564 | } | |
565 | ||
7998dfc3 AC |
566 | /* Go through the target stack from top to bottom, copying over zero |
567 | entries in current_target, then filling in still empty entries. In | |
568 | effect, we are doing class inheritance through the pushed target | |
569 | vectors. | |
570 | ||
571 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
572 | is currently implemented, is that it discards any knowledge of | |
573 | which target an inherited method originally belonged to. | |
574 | Consequently, new new target methods should instead explicitly and | |
575 | locally search the target stack for the target that can handle the | |
576 | request. */ | |
c906108c SS |
577 | |
578 | static void | |
7998dfc3 | 579 | update_current_target (void) |
c906108c | 580 | { |
7998dfc3 AC |
581 | struct target_ops *t; |
582 | ||
08d8bcd7 | 583 | /* First, reset current's contents. */ |
7998dfc3 AC |
584 | memset (¤t_target, 0, sizeof (current_target)); |
585 | ||
1101cb7b TT |
586 | /* Install the delegators. */ |
587 | install_delegators (¤t_target); | |
588 | ||
7998dfc3 AC |
589 | #define INHERIT(FIELD, TARGET) \ |
590 | if (!current_target.FIELD) \ | |
591 | current_target.FIELD = (TARGET)->FIELD | |
592 | ||
593 | for (t = target_stack; t; t = t->beneath) | |
594 | { | |
595 | INHERIT (to_shortname, t); | |
596 | INHERIT (to_longname, t); | |
597 | INHERIT (to_doc, t); | |
b52323fa UW |
598 | /* Do not inherit to_open. */ |
599 | /* Do not inherit to_close. */ | |
136d6dae | 600 | /* Do not inherit to_attach. */ |
bebd3233 | 601 | /* Do not inherit to_post_attach. */ |
dc177b7a | 602 | INHERIT (to_attach_no_wait, t); |
136d6dae | 603 | /* Do not inherit to_detach. */ |
597320e7 | 604 | /* Do not inherit to_disconnect. */ |
28439f5e | 605 | /* Do not inherit to_resume. */ |
117de6a9 | 606 | /* Do not inherit to_wait. */ |
28439f5e PA |
607 | /* Do not inherit to_fetch_registers. */ |
608 | /* Do not inherit to_store_registers. */ | |
6c628163 | 609 | /* Do not inherit to_prepare_to_store. */ |
c8e73a31 | 610 | INHERIT (deprecated_xfer_memory, t); |
f86e59b2 | 611 | /* Do not inherit to_files_info. */ |
3db08215 MM |
612 | /* Do not inherit to_insert_breakpoint. */ |
613 | /* Do not inherit to_remove_breakpoint. */ | |
52b51d06 | 614 | /* Do not inherit to_can_use_hw_breakpoint. */ |
61b371f9 | 615 | /* Do not inherit to_insert_hw_breakpoint. */ |
418dabac | 616 | /* Do not inherit to_remove_hw_breakpoint. */ |
f1310107 | 617 | /* Do not inherit to_ranged_break_num_registers. */ |
016facd4 | 618 | /* Do not inherit to_insert_watchpoint. */ |
61dd109f | 619 | /* Do not inherit to_remove_watchpoint. */ |
9c06b0b4 TJB |
620 | /* Do not inherit to_insert_mask_watchpoint. */ |
621 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 622 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 623 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 624 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 625 | /* Do not inherit to_stopped_by_watchpoint. */ |
65f160a9 | 626 | /* Do not inherit to_watchpoint_addr_within_range. */ |
d03655e4 | 627 | /* Do not inherit to_region_ok_for_hw_watchpoint. */ |
77cdffe9 | 628 | /* Do not inherit to_can_accel_watchpoint_condition. */ |
9c06b0b4 | 629 | /* Do not inherit to_masked_watch_num_registers. */ |
0343661d | 630 | /* Do not inherit to_terminal_init. */ |
ddeaacc9 | 631 | /* Do not inherit to_terminal_inferior. */ |
74fcbef9 | 632 | /* Do not inherit to_terminal_ours_for_output. */ |
e4a733f1 | 633 | /* Do not inherit to_terminal_ours. */ |
c6ea8f79 | 634 | /* Do not inherit to_terminal_save_ours. */ |
e19e919f | 635 | /* Do not inherit to_terminal_info. */ |
7d85a9c0 | 636 | /* Do not inherit to_kill. */ |
7634da87 | 637 | /* Do not inherit to_load. */ |
136d6dae | 638 | /* Do no inherit to_create_inferior. */ |
340ba4bf | 639 | /* Do not inherit to_post_startup_inferior. */ |
5958ebeb | 640 | /* Do not inherit to_insert_fork_catchpoint. */ |
e1a21fb7 | 641 | /* Do not inherit to_remove_fork_catchpoint. */ |
7e18a8dc | 642 | /* Do not inherit to_insert_vfork_catchpoint. */ |
95c3375e | 643 | /* Do not inherit to_remove_vfork_catchpoint. */ |
ee057212 | 644 | /* Do not inherit to_follow_fork. */ |
62f64d7a | 645 | /* Do not inherit to_insert_exec_catchpoint. */ |
cda0f38c | 646 | /* Do not inherit to_remove_exec_catchpoint. */ |
6a9fa051 | 647 | /* Do not inherit to_set_syscall_catchpoint. */ |
0db88c1d | 648 | /* Do not inherit to_has_exited. */ |
82892036 | 649 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 650 | INHERIT (to_can_run, t); |
2455069d | 651 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 652 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
653 | /* Do not inherit to_thread_alive. */ |
654 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 655 | /* Do not inherit to_pid_to_str. */ |
4a7e6dda | 656 | /* Do not inherit to_extra_thread_info. */ |
825828fc | 657 | /* Do not inherit to_thread_name. */ |
7998dfc3 | 658 | INHERIT (to_stop, t); |
4b8a223f | 659 | /* Do not inherit to_xfer_partial. */ |
a53f3625 | 660 | /* Do not inherit to_rcmd. */ |
830ca330 | 661 | /* Do not inherit to_pid_to_exec_file. */ |
d9cb0195 | 662 | /* Do not inherit to_log_command. */ |
7998dfc3 | 663 | INHERIT (to_stratum, t); |
c378eb4e MS |
664 | /* Do not inherit to_has_all_memory. */ |
665 | /* Do not inherit to_has_memory. */ | |
666 | /* Do not inherit to_has_stack. */ | |
667 | /* Do not inherit to_has_registers. */ | |
668 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 669 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
670 | /* Do not inherit to_can_async_p. */ |
671 | /* Do not inherit to_is_async_p. */ | |
672 | /* Do not inherit to_async. */ | |
0b5a2719 | 673 | /* Do not inherit to_find_memory_regions. */ |
16f796b1 | 674 | /* Do not inherit to_make_corefile_notes. */ |
3dbafbbb | 675 | /* Do not inherit to_get_bookmark. */ |
9bb9d61d | 676 | /* Do not inherit to_goto_bookmark. */ |
117de6a9 | 677 | /* Do not inherit to_get_thread_local_address. */ |
53e1cfc7 | 678 | /* Do not inherit to_can_execute_reverse. */ |
fe31bf5b | 679 | /* Do not inherit to_execution_direction. */ |
43eba180 | 680 | /* Do not inherit to_thread_architecture. */ |
424163ea | 681 | /* Do not inherit to_read_description. */ |
4229b31d | 682 | /* Do not inherit to_get_ada_task_ptid. */ |
08388c79 | 683 | /* Do not inherit to_search_memory. */ |
a7304748 | 684 | /* Do not inherit to_supports_multi_process. */ |
aab1b22d | 685 | /* Do not inherit to_supports_enable_disable_tracepoint. */ |
9409d39e | 686 | /* Do not inherit to_supports_string_tracing. */ |
5536135b | 687 | /* Do not inherit to_trace_init. */ |
9a980a22 | 688 | /* Do not inherit to_download_tracepoint. */ |
719acc4a | 689 | /* Do not inherit to_can_download_tracepoint. */ |
94eb98b9 | 690 | /* Do not inherit to_download_trace_state_variable. */ |
151f70f1 | 691 | /* Do not inherit to_enable_tracepoint. */ |
05c41993 | 692 | /* Do not inherit to_disable_tracepoint. */ |
86dd181d | 693 | /* Do not inherit to_trace_set_readonly_regions. */ |
25da2e80 | 694 | /* Do not inherit to_trace_start. */ |
4072d4ff | 695 | /* Do not inherit to_get_trace_status. */ |
6fea14cd | 696 | /* Do not inherit to_get_tracepoint_status. */ |
e51c07ea | 697 | /* Do not inherit to_trace_stop. */ |
afc94e66 | 698 | /* Do not inherit to_trace_find. */ |
959bcd0b | 699 | /* Do not inherit to_get_trace_state_variable_value. */ |
a2e6c147 | 700 | /* Do not inherit to_save_trace_data. */ |
1e949b00 | 701 | /* Do not inherit to_upload_tracepoints. */ |
08120467 | 702 | /* Do not inherit to_upload_trace_state_variables. */ |
ace92e7d | 703 | /* Do not inherit to_get_raw_trace_data. */ |
9249843f | 704 | /* Do not inherit to_get_min_fast_tracepoint_insn_len. */ |
0bcfeddf | 705 | /* Do not inherit to_set_disconnected_tracing. */ |
8d526939 | 706 | /* Do not inherit to_set_circular_trace_buffer. */ |
91df8d1d | 707 | /* Do not inherit to_set_trace_buffer_size. */ |
8586ccaa | 708 | /* Do not inherit to_set_trace_notes. */ |
22bcceee | 709 | /* Do not inherit to_get_tib_address. */ |
dcd6917f | 710 | /* Do not inherit to_set_permissions. */ |
4c3e4425 | 711 | /* Do not inherit to_static_tracepoint_marker_at. */ |
d6522a22 | 712 | /* Do not inherit to_static_tracepoint_markers_by_strid. */ |
92155eeb | 713 | /* Do not inherit to_traceframe_info. */ |
d9db5b21 | 714 | /* Do not inherit to_use_agent. */ |
9a7d8b48 | 715 | /* Do not inherit to_can_use_agent. */ |
ced63ec0 | 716 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 717 | INHERIT (to_magic, t); |
b775012e | 718 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 719 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 720 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
721 | /* Do not inherit to_flash_erase. */ |
722 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
723 | } |
724 | #undef INHERIT | |
725 | ||
726 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
727 | it. Some entries are defaulted to a method that print an error, |
728 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
729 | |
730 | #define de_fault(field, value) \ | |
7998dfc3 AC |
731 | if (!current_target.field) \ |
732 | current_target.field = value | |
0d06e24b | 733 | |
2bc416ba DJ |
734 | de_fault (to_open, |
735 | (void (*) (char *, int)) | |
0d06e24b | 736 | tcomplain); |
2bc416ba | 737 | de_fault (to_close, |
de90e03d | 738 | (void (*) (struct target_ops *)) |
0d06e24b | 739 | target_ignore); |
2bc416ba | 740 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
741 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
742 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 743 | nomemory); |
2bc416ba | 744 | de_fault (to_can_run, |
da82bd6b | 745 | (int (*) (struct target_ops *)) |
0d06e24b | 746 | return_zero); |
2bc416ba | 747 | de_fault (to_stop, |
1eab8a48 | 748 | (void (*) (struct target_ops *, ptid_t)) |
0d06e24b | 749 | target_ignore); |
424163ea | 750 | current_target.to_read_description = NULL; |
b775012e | 751 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
efcc2da7 | 752 | (int (*) (struct target_ops *)) |
b775012e | 753 | return_zero); |
d3ce09f5 | 754 | de_fault (to_can_run_breakpoint_commands, |
78eff0ec | 755 | (int (*) (struct target_ops *)) |
d3ce09f5 | 756 | return_zero); |
ced63ec0 | 757 | de_fault (to_augmented_libraries_svr4_read, |
5436ff03 | 758 | (int (*) (struct target_ops *)) |
ced63ec0 | 759 | return_zero); |
32231432 | 760 | |
c906108c | 761 | #undef de_fault |
c906108c | 762 | |
7998dfc3 AC |
763 | /* Finally, position the target-stack beneath the squashed |
764 | "current_target". That way code looking for a non-inherited | |
765 | target method can quickly and simply find it. */ | |
766 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
767 | |
768 | if (targetdebug) | |
769 | setup_target_debug (); | |
c906108c SS |
770 | } |
771 | ||
772 | /* Push a new target type into the stack of the existing target accessors, | |
773 | possibly superseding some of the existing accessors. | |
774 | ||
c906108c SS |
775 | Rather than allow an empty stack, we always have the dummy target at |
776 | the bottom stratum, so we can call the function vectors without | |
777 | checking them. */ | |
778 | ||
b26a4dcb | 779 | void |
fba45db2 | 780 | push_target (struct target_ops *t) |
c906108c | 781 | { |
258b763a | 782 | struct target_ops **cur; |
c906108c SS |
783 | |
784 | /* Check magic number. If wrong, it probably means someone changed | |
785 | the struct definition, but not all the places that initialize one. */ | |
786 | if (t->to_magic != OPS_MAGIC) | |
787 | { | |
c5aa993b JM |
788 | fprintf_unfiltered (gdb_stderr, |
789 | "Magic number of %s target struct wrong\n", | |
790 | t->to_shortname); | |
3e43a32a MS |
791 | internal_error (__FILE__, __LINE__, |
792 | _("failed internal consistency check")); | |
c906108c SS |
793 | } |
794 | ||
258b763a AC |
795 | /* Find the proper stratum to install this target in. */ |
796 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 797 | { |
258b763a | 798 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
799 | break; |
800 | } | |
801 | ||
258b763a | 802 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 803 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
804 | targets to CUR, and not just those at this stratum level. */ |
805 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
806 | { | |
807 | /* There's already something at this stratum level. Close it, | |
808 | and un-hook it from the stack. */ | |
809 | struct target_ops *tmp = (*cur); | |
5d502164 | 810 | |
258b763a AC |
811 | (*cur) = (*cur)->beneath; |
812 | tmp->beneath = NULL; | |
460014f5 | 813 | target_close (tmp); |
258b763a | 814 | } |
c906108c SS |
815 | |
816 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
817 | t->beneath = (*cur); |
818 | (*cur) = t; | |
c906108c SS |
819 | |
820 | update_current_target (); | |
c906108c SS |
821 | } |
822 | ||
2bc416ba | 823 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
824 | Return how many times it was removed (0 or 1). */ |
825 | ||
826 | int | |
fba45db2 | 827 | unpush_target (struct target_ops *t) |
c906108c | 828 | { |
258b763a AC |
829 | struct target_ops **cur; |
830 | struct target_ops *tmp; | |
c906108c | 831 | |
c8d104ad PA |
832 | if (t->to_stratum == dummy_stratum) |
833 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 834 | _("Attempt to unpush the dummy target")); |
c8d104ad | 835 | |
c906108c | 836 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 837 | can only occur once in the target stack. */ |
c906108c | 838 | |
258b763a AC |
839 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
840 | { | |
841 | if ((*cur) == t) | |
842 | break; | |
843 | } | |
c906108c | 844 | |
305436e0 PA |
845 | /* If we don't find target_ops, quit. Only open targets should be |
846 | closed. */ | |
258b763a | 847 | if ((*cur) == NULL) |
305436e0 | 848 | return 0; |
5269965e | 849 | |
c378eb4e | 850 | /* Unchain the target. */ |
258b763a AC |
851 | tmp = (*cur); |
852 | (*cur) = (*cur)->beneath; | |
853 | tmp->beneath = NULL; | |
c906108c SS |
854 | |
855 | update_current_target (); | |
c906108c | 856 | |
305436e0 PA |
857 | /* Finally close the target. Note we do this after unchaining, so |
858 | any target method calls from within the target_close | |
859 | implementation don't end up in T anymore. */ | |
460014f5 | 860 | target_close (t); |
305436e0 | 861 | |
c906108c SS |
862 | return 1; |
863 | } | |
864 | ||
aa76d38d | 865 | void |
460014f5 | 866 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 867 | { |
87ab71f0 | 868 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 869 | { |
aa76d38d PA |
870 | if (!unpush_target (target_stack)) |
871 | { | |
872 | fprintf_unfiltered (gdb_stderr, | |
873 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 874 | target_stack->to_shortname); |
aa76d38d PA |
875 | internal_error (__FILE__, __LINE__, |
876 | _("failed internal consistency check")); | |
877 | break; | |
878 | } | |
879 | } | |
880 | } | |
881 | ||
87ab71f0 | 882 | void |
460014f5 | 883 | pop_all_targets (void) |
87ab71f0 | 884 | { |
460014f5 | 885 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
886 | } |
887 | ||
c0edd9ed JK |
888 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
889 | ||
890 | int | |
891 | target_is_pushed (struct target_ops *t) | |
892 | { | |
893 | struct target_ops **cur; | |
894 | ||
895 | /* Check magic number. If wrong, it probably means someone changed | |
896 | the struct definition, but not all the places that initialize one. */ | |
897 | if (t->to_magic != OPS_MAGIC) | |
898 | { | |
899 | fprintf_unfiltered (gdb_stderr, | |
900 | "Magic number of %s target struct wrong\n", | |
901 | t->to_shortname); | |
3e43a32a MS |
902 | internal_error (__FILE__, __LINE__, |
903 | _("failed internal consistency check")); | |
c0edd9ed JK |
904 | } |
905 | ||
906 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
907 | if (*cur == t) | |
908 | return 1; | |
909 | ||
910 | return 0; | |
911 | } | |
912 | ||
72f5cf0e | 913 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
914 | current thread's thread-local storage with offset OFFSET. */ |
915 | CORE_ADDR | |
916 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
917 | { | |
918 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
919 | struct target_ops *target; |
920 | ||
921 | for (target = current_target.beneath; | |
922 | target != NULL; | |
923 | target = target->beneath) | |
924 | { | |
925 | if (target->to_get_thread_local_address != NULL) | |
926 | break; | |
927 | } | |
9e35dae4 | 928 | |
117de6a9 | 929 | if (target != NULL |
f5656ead | 930 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
931 | { |
932 | ptid_t ptid = inferior_ptid; | |
933 | volatile struct gdb_exception ex; | |
934 | ||
935 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
936 | { | |
937 | CORE_ADDR lm_addr; | |
938 | ||
939 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 940 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
941 | objfile); |
942 | /* If it's 0, throw the appropriate exception. */ | |
943 | if (lm_addr == 0) | |
944 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
945 | _("TLS load module not found")); | |
946 | ||
3e43a32a MS |
947 | addr = target->to_get_thread_local_address (target, ptid, |
948 | lm_addr, offset); | |
9e35dae4 DJ |
949 | } |
950 | /* If an error occurred, print TLS related messages here. Otherwise, | |
951 | throw the error to some higher catcher. */ | |
952 | if (ex.reason < 0) | |
953 | { | |
954 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
955 | ||
956 | switch (ex.error) | |
957 | { | |
958 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
959 | error (_("Cannot find thread-local variables " |
960 | "in this thread library.")); | |
9e35dae4 DJ |
961 | break; |
962 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
963 | if (objfile_is_library) | |
964 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 965 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
966 | else |
967 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 968 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
969 | break; |
970 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
971 | if (objfile_is_library) | |
972 | error (_("The inferior has not yet allocated storage for" | |
973 | " thread-local variables in\n" | |
974 | "the shared library `%s'\n" | |
975 | "for %s"), | |
4262abfb | 976 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
977 | else |
978 | error (_("The inferior has not yet allocated storage for" | |
979 | " thread-local variables in\n" | |
980 | "the executable `%s'\n" | |
981 | "for %s"), | |
4262abfb | 982 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
983 | break; |
984 | case TLS_GENERIC_ERROR: | |
985 | if (objfile_is_library) | |
986 | error (_("Cannot find thread-local storage for %s, " | |
987 | "shared library %s:\n%s"), | |
988 | target_pid_to_str (ptid), | |
4262abfb | 989 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
990 | else |
991 | error (_("Cannot find thread-local storage for %s, " | |
992 | "executable file %s:\n%s"), | |
993 | target_pid_to_str (ptid), | |
4262abfb | 994 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
995 | break; |
996 | default: | |
997 | throw_exception (ex); | |
998 | break; | |
999 | } | |
1000 | } | |
1001 | } | |
1002 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1003 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1004 | else | |
1005 | error (_("Cannot find thread-local variables on this target")); | |
1006 | ||
1007 | return addr; | |
1008 | } | |
1009 | ||
6be7b56e | 1010 | const char * |
9b409511 | 1011 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1012 | { |
1013 | #define CASE(X) case X: return #X | |
1014 | switch (err) | |
1015 | { | |
1016 | CASE(TARGET_XFER_E_IO); | |
1017 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1018 | default: | |
1019 | return "<unknown>"; | |
1020 | } | |
1021 | #undef CASE | |
1022 | }; | |
1023 | ||
1024 | ||
c906108c SS |
1025 | #undef MIN |
1026 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1027 | ||
1028 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1029 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1030 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1031 | is responsible for freeing it. Return the number of bytes successfully | |
1032 | read. */ | |
1033 | ||
1034 | int | |
fba45db2 | 1035 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1036 | { |
c2e8b827 | 1037 | int tlen, offset, i; |
1b0ba102 | 1038 | gdb_byte buf[4]; |
c906108c SS |
1039 | int errcode = 0; |
1040 | char *buffer; | |
1041 | int buffer_allocated; | |
1042 | char *bufptr; | |
1043 | unsigned int nbytes_read = 0; | |
1044 | ||
6217bf3e MS |
1045 | gdb_assert (string); |
1046 | ||
c906108c SS |
1047 | /* Small for testing. */ |
1048 | buffer_allocated = 4; | |
1049 | buffer = xmalloc (buffer_allocated); | |
1050 | bufptr = buffer; | |
1051 | ||
c906108c SS |
1052 | while (len > 0) |
1053 | { | |
1054 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1055 | offset = memaddr & 3; | |
1056 | ||
1b0ba102 | 1057 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1058 | if (errcode != 0) |
1059 | { | |
1060 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1061 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1062 | a single byte. */ |
1063 | tlen = 1; | |
1064 | offset = 0; | |
b8eb5af0 | 1065 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1066 | if (errcode != 0) |
1067 | goto done; | |
1068 | } | |
1069 | ||
1070 | if (bufptr - buffer + tlen > buffer_allocated) | |
1071 | { | |
1072 | unsigned int bytes; | |
5d502164 | 1073 | |
c906108c SS |
1074 | bytes = bufptr - buffer; |
1075 | buffer_allocated *= 2; | |
1076 | buffer = xrealloc (buffer, buffer_allocated); | |
1077 | bufptr = buffer + bytes; | |
1078 | } | |
1079 | ||
1080 | for (i = 0; i < tlen; i++) | |
1081 | { | |
1082 | *bufptr++ = buf[i + offset]; | |
1083 | if (buf[i + offset] == '\000') | |
1084 | { | |
1085 | nbytes_read += i + 1; | |
1086 | goto done; | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | memaddr += tlen; | |
1091 | len -= tlen; | |
1092 | nbytes_read += tlen; | |
1093 | } | |
c5aa993b | 1094 | done: |
6217bf3e | 1095 | *string = buffer; |
c906108c SS |
1096 | if (errnop != NULL) |
1097 | *errnop = errcode; | |
c906108c SS |
1098 | return nbytes_read; |
1099 | } | |
1100 | ||
07b82ea5 PA |
1101 | struct target_section_table * |
1102 | target_get_section_table (struct target_ops *target) | |
1103 | { | |
1104 | struct target_ops *t; | |
1105 | ||
1106 | if (targetdebug) | |
1107 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1108 | ||
1109 | for (t = target; t != NULL; t = t->beneath) | |
1110 | if (t->to_get_section_table != NULL) | |
1111 | return (*t->to_get_section_table) (t); | |
1112 | ||
1113 | return NULL; | |
1114 | } | |
1115 | ||
8db32d44 | 1116 | /* Find a section containing ADDR. */ |
07b82ea5 | 1117 | |
0542c86d | 1118 | struct target_section * |
8db32d44 AC |
1119 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1120 | { | |
07b82ea5 | 1121 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1122 | struct target_section *secp; |
07b82ea5 PA |
1123 | |
1124 | if (table == NULL) | |
1125 | return NULL; | |
1126 | ||
1127 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1128 | { |
1129 | if (addr >= secp->addr && addr < secp->endaddr) | |
1130 | return secp; | |
1131 | } | |
1132 | return NULL; | |
1133 | } | |
1134 | ||
e6e4e701 PA |
1135 | /* Read memory from the live target, even if currently inspecting a |
1136 | traceframe. The return is the same as that of target_read. */ | |
1137 | ||
9b409511 | 1138 | static enum target_xfer_status |
e6e4e701 | 1139 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1140 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1141 | ULONGEST *xfered_len) | |
e6e4e701 | 1142 | { |
9b409511 | 1143 | enum target_xfer_status ret; |
e6e4e701 PA |
1144 | struct cleanup *cleanup; |
1145 | ||
1146 | /* Switch momentarily out of tfind mode so to access live memory. | |
1147 | Note that this must not clear global state, such as the frame | |
1148 | cache, which must still remain valid for the previous traceframe. | |
1149 | We may be _building_ the frame cache at this point. */ | |
1150 | cleanup = make_cleanup_restore_traceframe_number (); | |
1151 | set_traceframe_number (-1); | |
1152 | ||
9b409511 YQ |
1153 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1154 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1155 | |
1156 | do_cleanups (cleanup); | |
1157 | return ret; | |
1158 | } | |
1159 | ||
1160 | /* Using the set of read-only target sections of OPS, read live | |
1161 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1162 | top-most target again. |
1163 | ||
1164 | For interface/parameters/return description see target.h, | |
1165 | to_xfer_partial. */ | |
e6e4e701 | 1166 | |
9b409511 | 1167 | static enum target_xfer_status |
e6e4e701 PA |
1168 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1169 | enum target_object object, | |
1170 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1171 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1172 | { |
1173 | struct target_section *secp; | |
1174 | struct target_section_table *table; | |
1175 | ||
1176 | secp = target_section_by_addr (ops, memaddr); | |
1177 | if (secp != NULL | |
2b2848e2 DE |
1178 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1179 | secp->the_bfd_section) | |
e6e4e701 PA |
1180 | & SEC_READONLY)) |
1181 | { | |
1182 | struct target_section *p; | |
1183 | ULONGEST memend = memaddr + len; | |
1184 | ||
1185 | table = target_get_section_table (ops); | |
1186 | ||
1187 | for (p = table->sections; p < table->sections_end; p++) | |
1188 | { | |
1189 | if (memaddr >= p->addr) | |
1190 | { | |
1191 | if (memend <= p->endaddr) | |
1192 | { | |
1193 | /* Entire transfer is within this section. */ | |
1194 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1195 | readbuf, len, xfered_len); |
e6e4e701 PA |
1196 | } |
1197 | else if (memaddr >= p->endaddr) | |
1198 | { | |
1199 | /* This section ends before the transfer starts. */ | |
1200 | continue; | |
1201 | } | |
1202 | else | |
1203 | { | |
1204 | /* This section overlaps the transfer. Just do half. */ | |
1205 | len = p->endaddr - memaddr; | |
1206 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1207 | readbuf, len, xfered_len); |
e6e4e701 PA |
1208 | } |
1209 | } | |
1210 | } | |
1211 | } | |
1212 | ||
9b409511 | 1213 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1214 | } |
1215 | ||
9f713294 YQ |
1216 | /* Read memory from more than one valid target. A core file, for |
1217 | instance, could have some of memory but delegate other bits to | |
1218 | the target below it. So, we must manually try all targets. */ | |
1219 | ||
9b409511 | 1220 | static enum target_xfer_status |
17fde6d0 | 1221 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1222 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1223 | ULONGEST *xfered_len) | |
9f713294 | 1224 | { |
9b409511 | 1225 | enum target_xfer_status res; |
9f713294 YQ |
1226 | |
1227 | do | |
1228 | { | |
1229 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1230 | readbuf, writebuf, memaddr, len, |
1231 | xfered_len); | |
1232 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1233 | break; |
1234 | ||
633785ff MM |
1235 | /* Stop if the target reports that the memory is not available. */ |
1236 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1237 | break; | |
1238 | ||
9f713294 YQ |
1239 | /* We want to continue past core files to executables, but not |
1240 | past a running target's memory. */ | |
1241 | if (ops->to_has_all_memory (ops)) | |
1242 | break; | |
1243 | ||
1244 | ops = ops->beneath; | |
1245 | } | |
1246 | while (ops != NULL); | |
1247 | ||
1248 | return res; | |
1249 | } | |
1250 | ||
7f79c47e DE |
1251 | /* Perform a partial memory transfer. |
1252 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1253 | |
9b409511 | 1254 | static enum target_xfer_status |
f0ba3972 | 1255 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1256 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1257 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1258 | { |
9b409511 | 1259 | enum target_xfer_status res; |
cf7a04e8 DJ |
1260 | int reg_len; |
1261 | struct mem_region *region; | |
4e5d721f | 1262 | struct inferior *inf; |
cf7a04e8 | 1263 | |
07b82ea5 PA |
1264 | /* For accesses to unmapped overlay sections, read directly from |
1265 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1266 | if (readbuf != NULL && overlay_debugging) | |
1267 | { | |
1268 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1269 | |
07b82ea5 PA |
1270 | if (pc_in_unmapped_range (memaddr, section)) |
1271 | { | |
1272 | struct target_section_table *table | |
1273 | = target_get_section_table (ops); | |
1274 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1275 | |
07b82ea5 PA |
1276 | memaddr = overlay_mapped_address (memaddr, section); |
1277 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1278 | memaddr, len, xfered_len, |
07b82ea5 PA |
1279 | table->sections, |
1280 | table->sections_end, | |
1281 | section_name); | |
1282 | } | |
1283 | } | |
1284 | ||
1285 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1286 | if (readbuf != NULL && trust_readonly) |
1287 | { | |
0542c86d | 1288 | struct target_section *secp; |
07b82ea5 | 1289 | struct target_section_table *table; |
cf7a04e8 DJ |
1290 | |
1291 | secp = target_section_by_addr (ops, memaddr); | |
1292 | if (secp != NULL | |
2b2848e2 DE |
1293 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1294 | secp->the_bfd_section) | |
cf7a04e8 | 1295 | & SEC_READONLY)) |
07b82ea5 PA |
1296 | { |
1297 | table = target_get_section_table (ops); | |
1298 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1299 | memaddr, len, xfered_len, |
07b82ea5 PA |
1300 | table->sections, |
1301 | table->sections_end, | |
1302 | NULL); | |
1303 | } | |
98646950 UW |
1304 | } |
1305 | ||
e6e4e701 PA |
1306 | /* If reading unavailable memory in the context of traceframes, and |
1307 | this address falls within a read-only section, fallback to | |
1308 | reading from live memory. */ | |
1309 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1310 | { | |
1311 | VEC(mem_range_s) *available; | |
1312 | ||
1313 | /* If we fail to get the set of available memory, then the | |
1314 | target does not support querying traceframe info, and so we | |
1315 | attempt reading from the traceframe anyway (assuming the | |
1316 | target implements the old QTro packet then). */ | |
1317 | if (traceframe_available_memory (&available, memaddr, len)) | |
1318 | { | |
1319 | struct cleanup *old_chain; | |
1320 | ||
1321 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1322 | ||
1323 | if (VEC_empty (mem_range_s, available) | |
1324 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1325 | { | |
1326 | /* Don't read into the traceframe's available | |
1327 | memory. */ | |
1328 | if (!VEC_empty (mem_range_s, available)) | |
1329 | { | |
1330 | LONGEST oldlen = len; | |
1331 | ||
1332 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1333 | gdb_assert (len <= oldlen); | |
1334 | } | |
1335 | ||
1336 | do_cleanups (old_chain); | |
1337 | ||
1338 | /* This goes through the topmost target again. */ | |
1339 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1340 | readbuf, memaddr, |
1341 | len, xfered_len); | |
1342 | if (res == TARGET_XFER_OK) | |
1343 | return TARGET_XFER_OK; | |
1344 | else | |
1345 | { | |
1346 | /* No use trying further, we know some memory starting | |
1347 | at MEMADDR isn't available. */ | |
1348 | *xfered_len = len; | |
1349 | return TARGET_XFER_E_UNAVAILABLE; | |
1350 | } | |
e6e4e701 PA |
1351 | } |
1352 | ||
1353 | /* Don't try to read more than how much is available, in | |
1354 | case the target implements the deprecated QTro packet to | |
1355 | cater for older GDBs (the target's knowledge of read-only | |
1356 | sections may be outdated by now). */ | |
1357 | len = VEC_index (mem_range_s, available, 0)->length; | |
1358 | ||
1359 | do_cleanups (old_chain); | |
1360 | } | |
1361 | } | |
1362 | ||
cf7a04e8 DJ |
1363 | /* Try GDB's internal data cache. */ |
1364 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1365 | /* region->hi == 0 means there's no upper bound. */ |
1366 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1367 | reg_len = len; |
1368 | else | |
1369 | reg_len = region->hi - memaddr; | |
1370 | ||
1371 | switch (region->attrib.mode) | |
1372 | { | |
1373 | case MEM_RO: | |
1374 | if (writebuf != NULL) | |
2ed4b548 | 1375 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1376 | break; |
1377 | ||
1378 | case MEM_WO: | |
1379 | if (readbuf != NULL) | |
2ed4b548 | 1380 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1381 | break; |
a76d924d DJ |
1382 | |
1383 | case MEM_FLASH: | |
1384 | /* We only support writing to flash during "load" for now. */ | |
1385 | if (writebuf != NULL) | |
1386 | error (_("Writing to flash memory forbidden in this context")); | |
1387 | break; | |
4b5752d0 VP |
1388 | |
1389 | case MEM_NONE: | |
2ed4b548 | 1390 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1391 | } |
1392 | ||
6c95b8df PA |
1393 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1394 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1395 | else | |
1396 | inf = NULL; | |
4e5d721f DE |
1397 | |
1398 | if (inf != NULL | |
2f4d8875 PA |
1399 | /* The dcache reads whole cache lines; that doesn't play well |
1400 | with reading from a trace buffer, because reading outside of | |
1401 | the collected memory range fails. */ | |
1402 | && get_traceframe_number () == -1 | |
4e5d721f | 1403 | && (region->attrib.cache |
29453a14 YQ |
1404 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1405 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1406 | { |
2a2f9fe4 | 1407 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1408 | int l; |
2a2f9fe4 | 1409 | |
cf7a04e8 | 1410 | if (readbuf != NULL) |
9b409511 | 1411 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1412 | else |
1413 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1414 | correctness dcache_xfer_memory should take readbuf and | |
1415 | writebuf. */ | |
9b409511 | 1416 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1417 | reg_len, 1); |
9b409511 YQ |
1418 | if (l <= 0) |
1419 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1420 | else |
9b409511 YQ |
1421 | { |
1422 | *xfered_len = (ULONGEST) l; | |
1423 | return TARGET_XFER_OK; | |
1424 | } | |
cf7a04e8 DJ |
1425 | } |
1426 | ||
1427 | /* If none of those methods found the memory we wanted, fall back | |
1428 | to a target partial transfer. Normally a single call to | |
1429 | to_xfer_partial is enough; if it doesn't recognize an object | |
1430 | it will call the to_xfer_partial of the next target down. | |
1431 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1432 | object which can be read from more than one valid target. |
1433 | A core file, for instance, could have some of memory but | |
1434 | delegate other bits to the target below it. So, we must | |
1435 | manually try all targets. */ | |
1436 | ||
1437 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1438 | xfered_len); | |
cf7a04e8 | 1439 | |
41dcd03f DE |
1440 | /* Make sure the cache gets updated no matter what - if we are writing |
1441 | to the stack. Even if this write is not tagged as such, we still need | |
1442 | to update the cache. */ | |
1443 | ||
9b409511 | 1444 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1445 | && inf != NULL |
1446 | && writebuf != NULL | |
f2de9785 | 1447 | && target_dcache_init_p () |
41dcd03f | 1448 | && !region->attrib.cache |
29453a14 YQ |
1449 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1450 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1451 | { |
f2de9785 | 1452 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1453 | |
9b409511 | 1454 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1455 | } |
1456 | ||
cf7a04e8 DJ |
1457 | /* If we still haven't got anything, return the last error. We |
1458 | give up. */ | |
1459 | return res; | |
0779438d AC |
1460 | } |
1461 | ||
f0ba3972 PA |
1462 | /* Perform a partial memory transfer. For docs see target.h, |
1463 | to_xfer_partial. */ | |
1464 | ||
9b409511 | 1465 | static enum target_xfer_status |
f0ba3972 | 1466 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1467 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1468 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1469 | { |
9b409511 | 1470 | enum target_xfer_status res; |
f0ba3972 PA |
1471 | |
1472 | /* Zero length requests are ok and require no work. */ | |
1473 | if (len == 0) | |
9b409511 | 1474 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1475 | |
1476 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1477 | breakpoint insns, thus hiding out from higher layers whether | |
1478 | there are software breakpoints inserted in the code stream. */ | |
1479 | if (readbuf != NULL) | |
1480 | { | |
9b409511 YQ |
1481 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1482 | xfered_len); | |
f0ba3972 | 1483 | |
9b409511 | 1484 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1485 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1486 | } | |
1487 | else | |
1488 | { | |
1489 | void *buf; | |
1490 | struct cleanup *old_chain; | |
1491 | ||
67c059c2 AB |
1492 | /* A large write request is likely to be partially satisfied |
1493 | by memory_xfer_partial_1. We will continually malloc | |
1494 | and free a copy of the entire write request for breakpoint | |
1495 | shadow handling even though we only end up writing a small | |
1496 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1497 | len = min (4096, len); | |
1498 | ||
f0ba3972 PA |
1499 | buf = xmalloc (len); |
1500 | old_chain = make_cleanup (xfree, buf); | |
1501 | memcpy (buf, writebuf, len); | |
1502 | ||
1503 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1504 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1505 | xfered_len); | |
f0ba3972 PA |
1506 | |
1507 | do_cleanups (old_chain); | |
1508 | } | |
1509 | ||
1510 | return res; | |
1511 | } | |
1512 | ||
8defab1a DJ |
1513 | static void |
1514 | restore_show_memory_breakpoints (void *arg) | |
1515 | { | |
1516 | show_memory_breakpoints = (uintptr_t) arg; | |
1517 | } | |
1518 | ||
1519 | struct cleanup * | |
1520 | make_show_memory_breakpoints_cleanup (int show) | |
1521 | { | |
1522 | int current = show_memory_breakpoints; | |
8defab1a | 1523 | |
5d502164 | 1524 | show_memory_breakpoints = show; |
8defab1a DJ |
1525 | return make_cleanup (restore_show_memory_breakpoints, |
1526 | (void *) (uintptr_t) current); | |
1527 | } | |
1528 | ||
7f79c47e DE |
1529 | /* For docs see target.h, to_xfer_partial. */ |
1530 | ||
9b409511 | 1531 | enum target_xfer_status |
27394598 AC |
1532 | target_xfer_partial (struct target_ops *ops, |
1533 | enum target_object object, const char *annex, | |
4ac248ca | 1534 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1535 | ULONGEST offset, ULONGEST len, |
1536 | ULONGEST *xfered_len) | |
27394598 | 1537 | { |
9b409511 | 1538 | enum target_xfer_status retval; |
27394598 AC |
1539 | |
1540 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1541 | |
ce6d0892 YQ |
1542 | /* Transfer is done when LEN is zero. */ |
1543 | if (len == 0) | |
9b409511 | 1544 | return TARGET_XFER_EOF; |
ce6d0892 | 1545 | |
d914c394 SS |
1546 | if (writebuf && !may_write_memory) |
1547 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1548 | core_addr_to_string_nz (offset), plongest (len)); | |
1549 | ||
9b409511 YQ |
1550 | *xfered_len = 0; |
1551 | ||
cf7a04e8 DJ |
1552 | /* If this is a memory transfer, let the memory-specific code |
1553 | have a look at it instead. Memory transfers are more | |
1554 | complicated. */ | |
29453a14 YQ |
1555 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1556 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1557 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1558 | writebuf, offset, len, xfered_len); |
9f713294 | 1559 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1560 | { |
9f713294 | 1561 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1562 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1563 | xfered_len); | |
cf7a04e8 | 1564 | } |
9f713294 YQ |
1565 | else |
1566 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1567 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1568 | |
27394598 AC |
1569 | if (targetdebug) |
1570 | { | |
1571 | const unsigned char *myaddr = NULL; | |
1572 | ||
1573 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1574 | "%s:target_xfer_partial " |
9b409511 | 1575 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1576 | ops->to_shortname, |
1577 | (int) object, | |
1578 | (annex ? annex : "(null)"), | |
53b71562 JB |
1579 | host_address_to_string (readbuf), |
1580 | host_address_to_string (writebuf), | |
0b1553bc | 1581 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1582 | pulongest (len), retval, |
1583 | pulongest (*xfered_len)); | |
27394598 AC |
1584 | |
1585 | if (readbuf) | |
1586 | myaddr = readbuf; | |
1587 | if (writebuf) | |
1588 | myaddr = writebuf; | |
9b409511 | 1589 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1590 | { |
1591 | int i; | |
2bc416ba | 1592 | |
27394598 | 1593 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1594 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1595 | { |
53b71562 | 1596 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1597 | { |
1598 | if (targetdebug < 2 && i > 0) | |
1599 | { | |
1600 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1601 | break; | |
1602 | } | |
1603 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1604 | } | |
2bc416ba | 1605 | |
27394598 AC |
1606 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1607 | } | |
1608 | } | |
2bc416ba | 1609 | |
27394598 AC |
1610 | fputc_unfiltered ('\n', gdb_stdlog); |
1611 | } | |
9b409511 YQ |
1612 | |
1613 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1614 | properly. Do assertion after printing debug messages, so that we | |
1615 | can find more clues on assertion failure from debugging messages. */ | |
1616 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1617 | gdb_assert (*xfered_len > 0); | |
1618 | ||
27394598 AC |
1619 | return retval; |
1620 | } | |
1621 | ||
578d3588 PA |
1622 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1623 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1624 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1625 | |
1626 | If an error occurs, no guarantee is made about the contents of the data at | |
1627 | MYADDR. In particular, the caller should not depend upon partial reads | |
1628 | filling the buffer with good data. There is no way for the caller to know | |
1629 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1630 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1631 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1632 | |
1633 | int | |
1b162304 | 1634 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1635 | { |
c35b1492 PA |
1636 | /* Dispatch to the topmost target, not the flattened current_target. |
1637 | Memory accesses check target->to_has_(all_)memory, and the | |
1638 | flattened target doesn't inherit those. */ | |
1639 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1640 | myaddr, memaddr, len) == len) |
1641 | return 0; | |
0779438d | 1642 | else |
578d3588 | 1643 | return TARGET_XFER_E_IO; |
c906108c SS |
1644 | } |
1645 | ||
aee4bf85 PA |
1646 | /* Like target_read_memory, but specify explicitly that this is a read |
1647 | from the target's raw memory. That is, this read bypasses the | |
1648 | dcache, breakpoint shadowing, etc. */ | |
1649 | ||
1650 | int | |
1651 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1652 | { | |
1653 | /* See comment in target_read_memory about why the request starts at | |
1654 | current_target.beneath. */ | |
1655 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1656 | myaddr, memaddr, len) == len) | |
1657 | return 0; | |
1658 | else | |
1659 | return TARGET_XFER_E_IO; | |
1660 | } | |
1661 | ||
4e5d721f DE |
1662 | /* Like target_read_memory, but specify explicitly that this is a read from |
1663 | the target's stack. This may trigger different cache behavior. */ | |
1664 | ||
1665 | int | |
45aa4659 | 1666 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1667 | { |
aee4bf85 PA |
1668 | /* See comment in target_read_memory about why the request starts at |
1669 | current_target.beneath. */ | |
4e5d721f DE |
1670 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1671 | myaddr, memaddr, len) == len) | |
1672 | return 0; | |
1673 | else | |
578d3588 | 1674 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1675 | } |
1676 | ||
29453a14 YQ |
1677 | /* Like target_read_memory, but specify explicitly that this is a read from |
1678 | the target's code. This may trigger different cache behavior. */ | |
1679 | ||
1680 | int | |
1681 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1682 | { | |
aee4bf85 PA |
1683 | /* See comment in target_read_memory about why the request starts at |
1684 | current_target.beneath. */ | |
29453a14 YQ |
1685 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1686 | myaddr, memaddr, len) == len) | |
1687 | return 0; | |
1688 | else | |
1689 | return TARGET_XFER_E_IO; | |
1690 | } | |
1691 | ||
7f79c47e | 1692 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1693 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1694 | error occurs. If an error occurs, no guarantee is made about how |
1695 | much data got written. Callers that can deal with partial writes | |
1696 | should call target_write. */ | |
7f79c47e | 1697 | |
c906108c | 1698 | int |
45aa4659 | 1699 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1700 | { |
aee4bf85 PA |
1701 | /* See comment in target_read_memory about why the request starts at |
1702 | current_target.beneath. */ | |
c35b1492 | 1703 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1704 | myaddr, memaddr, len) == len) |
1705 | return 0; | |
0779438d | 1706 | else |
578d3588 | 1707 | return TARGET_XFER_E_IO; |
c906108c | 1708 | } |
c5aa993b | 1709 | |
f0ba3972 | 1710 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1711 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1712 | if any error occurs. If an error occurs, no guarantee is made |
1713 | about how much data got written. Callers that can deal with | |
1714 | partial writes should call target_write. */ | |
f0ba3972 PA |
1715 | |
1716 | int | |
45aa4659 | 1717 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1718 | { |
aee4bf85 PA |
1719 | /* See comment in target_read_memory about why the request starts at |
1720 | current_target.beneath. */ | |
f0ba3972 PA |
1721 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1722 | myaddr, memaddr, len) == len) | |
1723 | return 0; | |
1724 | else | |
578d3588 | 1725 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1726 | } |
1727 | ||
fd79ecee DJ |
1728 | /* Fetch the target's memory map. */ |
1729 | ||
1730 | VEC(mem_region_s) * | |
1731 | target_memory_map (void) | |
1732 | { | |
1733 | VEC(mem_region_s) *result; | |
1734 | struct mem_region *last_one, *this_one; | |
1735 | int ix; | |
1736 | struct target_ops *t; | |
1737 | ||
1738 | if (targetdebug) | |
1739 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1740 | ||
1741 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1742 | if (t->to_memory_map != NULL) | |
1743 | break; | |
1744 | ||
1745 | if (t == NULL) | |
1746 | return NULL; | |
1747 | ||
1748 | result = t->to_memory_map (t); | |
1749 | if (result == NULL) | |
1750 | return NULL; | |
1751 | ||
1752 | qsort (VEC_address (mem_region_s, result), | |
1753 | VEC_length (mem_region_s, result), | |
1754 | sizeof (struct mem_region), mem_region_cmp); | |
1755 | ||
1756 | /* Check that regions do not overlap. Simultaneously assign | |
1757 | a numbering for the "mem" commands to use to refer to | |
1758 | each region. */ | |
1759 | last_one = NULL; | |
1760 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1761 | { | |
1762 | this_one->number = ix; | |
1763 | ||
1764 | if (last_one && last_one->hi > this_one->lo) | |
1765 | { | |
1766 | warning (_("Overlapping regions in memory map: ignoring")); | |
1767 | VEC_free (mem_region_s, result); | |
1768 | return NULL; | |
1769 | } | |
1770 | last_one = this_one; | |
1771 | } | |
1772 | ||
1773 | return result; | |
1774 | } | |
1775 | ||
a76d924d DJ |
1776 | void |
1777 | target_flash_erase (ULONGEST address, LONGEST length) | |
1778 | { | |
1779 | struct target_ops *t; | |
1780 | ||
1781 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1782 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1783 | { |
1784 | if (targetdebug) | |
1785 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1786 | hex_string (address), phex (length, 0)); | |
1787 | t->to_flash_erase (t, address, length); | |
1788 | return; | |
1789 | } | |
a76d924d DJ |
1790 | |
1791 | tcomplain (); | |
1792 | } | |
1793 | ||
1794 | void | |
1795 | target_flash_done (void) | |
1796 | { | |
1797 | struct target_ops *t; | |
1798 | ||
1799 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1800 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1801 | { |
1802 | if (targetdebug) | |
1803 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1804 | t->to_flash_done (t); | |
1805 | return; | |
1806 | } | |
a76d924d DJ |
1807 | |
1808 | tcomplain (); | |
1809 | } | |
1810 | ||
920d2a44 AC |
1811 | static void |
1812 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1813 | struct cmd_list_element *c, const char *value) | |
1814 | { | |
3e43a32a MS |
1815 | fprintf_filtered (file, |
1816 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1817 | value); |
1818 | } | |
3a11626d | 1819 | |
1e3ff5ad AC |
1820 | /* More generic transfers. */ |
1821 | ||
9b409511 | 1822 | static enum target_xfer_status |
8aa91c1e | 1823 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1824 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
1825 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
1826 | ULONGEST *xfered_len) | |
0088c768 AC |
1827 | { |
1828 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1829 | && ops->deprecated_xfer_memory != NULL) |
1830 | /* If available, fall back to the target's | |
1831 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1832 | { |
4b8a223f | 1833 | int xfered = -1; |
5d502164 | 1834 | |
0088c768 | 1835 | errno = 0; |
4b8a223f AC |
1836 | if (writebuf != NULL) |
1837 | { | |
1838 | void *buffer = xmalloc (len); | |
1839 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1840 | |
4b8a223f | 1841 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1842 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1843 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1844 | do_cleanups (cleanup); |
1845 | } | |
1846 | if (readbuf != NULL) | |
244e85c8 MS |
1847 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1848 | 0/*read*/, NULL, ops); | |
0088c768 | 1849 | if (xfered > 0) |
9b409511 YQ |
1850 | { |
1851 | *xfered_len = (ULONGEST) xfered; | |
1852 | return TARGET_XFER_E_IO; | |
1853 | } | |
0088c768 | 1854 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
1855 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1856 | ERRNO as one indication of an error. */ | |
9b409511 | 1857 | return TARGET_XFER_EOF; |
0088c768 | 1858 | else |
9b409511 | 1859 | return TARGET_XFER_E_IO; |
0088c768 | 1860 | } |
0088c768 | 1861 | else |
6b84065d TT |
1862 | { |
1863 | gdb_assert (ops->beneath != NULL); | |
1864 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1865 | readbuf, writebuf, offset, len, | |
1866 | xfered_len); | |
1867 | } | |
0088c768 AC |
1868 | } |
1869 | ||
7f79c47e | 1870 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1871 | |
9b409511 | 1872 | static enum target_xfer_status |
1e3ff5ad AC |
1873 | target_read_partial (struct target_ops *ops, |
1874 | enum target_object object, | |
1b0ba102 | 1875 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1876 | ULONGEST offset, ULONGEST len, |
1877 | ULONGEST *xfered_len) | |
1e3ff5ad | 1878 | { |
9b409511 YQ |
1879 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1880 | xfered_len); | |
1e3ff5ad AC |
1881 | } |
1882 | ||
8a55ffb0 | 1883 | static enum target_xfer_status |
1e3ff5ad AC |
1884 | target_write_partial (struct target_ops *ops, |
1885 | enum target_object object, | |
1b0ba102 | 1886 | const char *annex, const gdb_byte *buf, |
9b409511 | 1887 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1888 | { |
9b409511 YQ |
1889 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1890 | xfered_len); | |
1e3ff5ad AC |
1891 | } |
1892 | ||
1893 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1894 | |
1895 | /* For docs on target_read see target.h. */ | |
1896 | ||
1e3ff5ad AC |
1897 | LONGEST |
1898 | target_read (struct target_ops *ops, | |
1899 | enum target_object object, | |
1b0ba102 | 1900 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1901 | ULONGEST offset, LONGEST len) |
1902 | { | |
1903 | LONGEST xfered = 0; | |
5d502164 | 1904 | |
1e3ff5ad AC |
1905 | while (xfered < len) |
1906 | { | |
9b409511 YQ |
1907 | ULONGEST xfered_len; |
1908 | enum target_xfer_status status; | |
1909 | ||
1910 | status = target_read_partial (ops, object, annex, | |
1911 | (gdb_byte *) buf + xfered, | |
1912 | offset + xfered, len - xfered, | |
1913 | &xfered_len); | |
5d502164 | 1914 | |
1e3ff5ad | 1915 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1916 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1917 | return xfered; |
9b409511 YQ |
1918 | else if (status == TARGET_XFER_OK) |
1919 | { | |
1920 | xfered += xfered_len; | |
1921 | QUIT; | |
1922 | } | |
1923 | else | |
0088c768 | 1924 | return -1; |
9b409511 | 1925 | |
1e3ff5ad AC |
1926 | } |
1927 | return len; | |
1928 | } | |
1929 | ||
f1a507a1 JB |
1930 | /* Assuming that the entire [begin, end) range of memory cannot be |
1931 | read, try to read whatever subrange is possible to read. | |
1932 | ||
1933 | The function returns, in RESULT, either zero or one memory block. | |
1934 | If there's a readable subrange at the beginning, it is completely | |
1935 | read and returned. Any further readable subrange will not be read. | |
1936 | Otherwise, if there's a readable subrange at the end, it will be | |
1937 | completely read and returned. Any readable subranges before it | |
1938 | (obviously, not starting at the beginning), will be ignored. In | |
1939 | other cases -- either no readable subrange, or readable subrange(s) | |
1940 | that is neither at the beginning, or end, nothing is returned. | |
1941 | ||
1942 | The purpose of this function is to handle a read across a boundary | |
1943 | of accessible memory in a case when memory map is not available. | |
1944 | The above restrictions are fine for this case, but will give | |
1945 | incorrect results if the memory is 'patchy'. However, supporting | |
1946 | 'patchy' memory would require trying to read every single byte, | |
1947 | and it seems unacceptable solution. Explicit memory map is | |
1948 | recommended for this case -- and target_read_memory_robust will | |
1949 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1950 | |
1951 | static void | |
3e43a32a MS |
1952 | read_whatever_is_readable (struct target_ops *ops, |
1953 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1954 | VEC(memory_read_result_s) **result) |
d5086790 | 1955 | { |
f1a507a1 | 1956 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1957 | ULONGEST current_begin = begin; |
1958 | ULONGEST current_end = end; | |
1959 | int forward; | |
1960 | memory_read_result_s r; | |
9b409511 | 1961 | ULONGEST xfered_len; |
8dedea02 VP |
1962 | |
1963 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1964 | if (end - begin <= 1) | |
13b3fd9b MS |
1965 | { |
1966 | xfree (buf); | |
1967 | return; | |
1968 | } | |
8dedea02 VP |
1969 | |
1970 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1971 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1972 | at the boundary of accessible region. */ |
1973 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 1974 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1975 | { |
1976 | forward = 1; | |
1977 | ++current_begin; | |
1978 | } | |
1979 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1980 | buf + (end-begin) - 1, end - 1, 1, |
1981 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
1982 | { |
1983 | forward = 0; | |
1984 | --current_end; | |
1985 | } | |
1986 | else | |
1987 | { | |
13b3fd9b | 1988 | xfree (buf); |
8dedea02 VP |
1989 | return; |
1990 | } | |
1991 | ||
1992 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1993 | found to be not readable as a whole. | |
1994 | ||
1995 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1996 | so there's no point trying further. */ | |
1997 | while (current_end - current_begin > 1) | |
1998 | { | |
1999 | ULONGEST first_half_begin, first_half_end; | |
2000 | ULONGEST second_half_begin, second_half_end; | |
2001 | LONGEST xfer; | |
8dedea02 | 2002 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2003 | |
8dedea02 VP |
2004 | if (forward) |
2005 | { | |
2006 | first_half_begin = current_begin; | |
2007 | first_half_end = middle; | |
2008 | second_half_begin = middle; | |
2009 | second_half_end = current_end; | |
2010 | } | |
2011 | else | |
2012 | { | |
2013 | first_half_begin = middle; | |
2014 | first_half_end = current_end; | |
2015 | second_half_begin = current_begin; | |
2016 | second_half_end = middle; | |
2017 | } | |
2018 | ||
2019 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2020 | buf + (first_half_begin - begin), | |
2021 | first_half_begin, | |
2022 | first_half_end - first_half_begin); | |
2023 | ||
2024 | if (xfer == first_half_end - first_half_begin) | |
2025 | { | |
c378eb4e | 2026 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2027 | other half. */ |
8dedea02 VP |
2028 | current_begin = second_half_begin; |
2029 | current_end = second_half_end; | |
2030 | } | |
2031 | else | |
2032 | { | |
c378eb4e MS |
2033 | /* This half is not readable. Because we've tried one byte, we |
2034 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2035 | iteration to divide again and try to read. |
2036 | ||
2037 | We don't handle the other half, because this function only tries | |
2038 | to read a single readable subrange. */ | |
2039 | current_begin = first_half_begin; | |
2040 | current_end = first_half_end; | |
2041 | } | |
2042 | } | |
2043 | ||
2044 | if (forward) | |
2045 | { | |
2046 | /* The [begin, current_begin) range has been read. */ | |
2047 | r.begin = begin; | |
2048 | r.end = current_begin; | |
2049 | r.data = buf; | |
2050 | } | |
2051 | else | |
2052 | { | |
2053 | /* The [current_end, end) range has been read. */ | |
2054 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2055 | |
8dedea02 VP |
2056 | r.data = xmalloc (rlen); |
2057 | memcpy (r.data, buf + current_end - begin, rlen); | |
2058 | r.begin = current_end; | |
2059 | r.end = end; | |
2060 | xfree (buf); | |
2061 | } | |
2062 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2063 | } | |
2064 | ||
2065 | void | |
2066 | free_memory_read_result_vector (void *x) | |
2067 | { | |
2068 | VEC(memory_read_result_s) *v = x; | |
2069 | memory_read_result_s *current; | |
2070 | int ix; | |
2071 | ||
2072 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2073 | { | |
2074 | xfree (current->data); | |
2075 | } | |
2076 | VEC_free (memory_read_result_s, v); | |
2077 | } | |
2078 | ||
2079 | VEC(memory_read_result_s) * | |
2080 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2081 | { | |
2082 | VEC(memory_read_result_s) *result = 0; | |
2083 | ||
2084 | LONGEST xfered = 0; | |
d5086790 VP |
2085 | while (xfered < len) |
2086 | { | |
8dedea02 VP |
2087 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2088 | LONGEST rlen; | |
5d502164 | 2089 | |
8dedea02 VP |
2090 | /* If there is no explicit region, a fake one should be created. */ |
2091 | gdb_assert (region); | |
2092 | ||
2093 | if (region->hi == 0) | |
2094 | rlen = len - xfered; | |
2095 | else | |
2096 | rlen = region->hi - offset; | |
2097 | ||
2098 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2099 | { |
c378eb4e | 2100 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2101 | if the region is explicitly marked inaccessible, or |
2102 | 'inaccessible-by-default' is in effect. */ | |
2103 | xfered += rlen; | |
2104 | } | |
2105 | else | |
2106 | { | |
2107 | LONGEST to_read = min (len - xfered, rlen); | |
2108 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2109 | ||
2110 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2111 | (gdb_byte *) buffer, | |
2112 | offset + xfered, to_read); | |
2113 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2114 | if (xfer <= 0) |
d5086790 | 2115 | { |
c378eb4e | 2116 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2117 | some subrange. */ |
2118 | xfree (buffer); | |
3e43a32a MS |
2119 | read_whatever_is_readable (ops, offset + xfered, |
2120 | offset + xfered + to_read, &result); | |
8dedea02 | 2121 | xfered += to_read; |
d5086790 | 2122 | } |
8dedea02 VP |
2123 | else |
2124 | { | |
2125 | struct memory_read_result r; | |
2126 | r.data = buffer; | |
2127 | r.begin = offset + xfered; | |
2128 | r.end = r.begin + xfer; | |
2129 | VEC_safe_push (memory_read_result_s, result, &r); | |
2130 | xfered += xfer; | |
2131 | } | |
2132 | QUIT; | |
d5086790 | 2133 | } |
d5086790 | 2134 | } |
8dedea02 | 2135 | return result; |
d5086790 VP |
2136 | } |
2137 | ||
8dedea02 | 2138 | |
cf7a04e8 DJ |
2139 | /* An alternative to target_write with progress callbacks. */ |
2140 | ||
1e3ff5ad | 2141 | LONGEST |
cf7a04e8 DJ |
2142 | target_write_with_progress (struct target_ops *ops, |
2143 | enum target_object object, | |
2144 | const char *annex, const gdb_byte *buf, | |
2145 | ULONGEST offset, LONGEST len, | |
2146 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2147 | { |
2148 | LONGEST xfered = 0; | |
a76d924d DJ |
2149 | |
2150 | /* Give the progress callback a chance to set up. */ | |
2151 | if (progress) | |
2152 | (*progress) (0, baton); | |
2153 | ||
1e3ff5ad AC |
2154 | while (xfered < len) |
2155 | { | |
9b409511 YQ |
2156 | ULONGEST xfered_len; |
2157 | enum target_xfer_status status; | |
2158 | ||
2159 | status = target_write_partial (ops, object, annex, | |
2160 | (gdb_byte *) buf + xfered, | |
2161 | offset + xfered, len - xfered, | |
2162 | &xfered_len); | |
cf7a04e8 | 2163 | |
9b409511 | 2164 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2165 | return xfered; |
9b409511 | 2166 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2167 | return -1; |
cf7a04e8 | 2168 | |
9b409511 | 2169 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2170 | if (progress) |
9b409511 | 2171 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2172 | |
9b409511 | 2173 | xfered += xfered_len; |
1e3ff5ad AC |
2174 | QUIT; |
2175 | } | |
2176 | return len; | |
2177 | } | |
2178 | ||
7f79c47e DE |
2179 | /* For docs on target_write see target.h. */ |
2180 | ||
cf7a04e8 DJ |
2181 | LONGEST |
2182 | target_write (struct target_ops *ops, | |
2183 | enum target_object object, | |
2184 | const char *annex, const gdb_byte *buf, | |
2185 | ULONGEST offset, LONGEST len) | |
2186 | { | |
2187 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2188 | NULL, NULL); | |
2189 | } | |
2190 | ||
159f81f3 DJ |
2191 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2192 | the size of the transferred data. PADDING additional bytes are | |
2193 | available in *BUF_P. This is a helper function for | |
2194 | target_read_alloc; see the declaration of that function for more | |
2195 | information. */ | |
13547ab6 | 2196 | |
159f81f3 DJ |
2197 | static LONGEST |
2198 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2199 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2200 | { |
2201 | size_t buf_alloc, buf_pos; | |
2202 | gdb_byte *buf; | |
13547ab6 DJ |
2203 | |
2204 | /* This function does not have a length parameter; it reads the | |
2205 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2206 | from one target and partly from another (in a different stratum, | |
2207 | e.g. a core file and an executable). Both reasons make it | |
2208 | unsuitable for reading memory. */ | |
2209 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2210 | ||
2211 | /* Start by reading up to 4K at a time. The target will throttle | |
2212 | this number down if necessary. */ | |
2213 | buf_alloc = 4096; | |
2214 | buf = xmalloc (buf_alloc); | |
2215 | buf_pos = 0; | |
2216 | while (1) | |
2217 | { | |
9b409511 YQ |
2218 | ULONGEST xfered_len; |
2219 | enum target_xfer_status status; | |
2220 | ||
2221 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2222 | buf_pos, buf_alloc - buf_pos - padding, | |
2223 | &xfered_len); | |
2224 | ||
2225 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2226 | { |
2227 | /* Read all there was. */ | |
2228 | if (buf_pos == 0) | |
2229 | xfree (buf); | |
2230 | else | |
2231 | *buf_p = buf; | |
2232 | return buf_pos; | |
2233 | } | |
9b409511 YQ |
2234 | else if (status != TARGET_XFER_OK) |
2235 | { | |
2236 | /* An error occurred. */ | |
2237 | xfree (buf); | |
2238 | return TARGET_XFER_E_IO; | |
2239 | } | |
13547ab6 | 2240 | |
9b409511 | 2241 | buf_pos += xfered_len; |
13547ab6 DJ |
2242 | |
2243 | /* If the buffer is filling up, expand it. */ | |
2244 | if (buf_alloc < buf_pos * 2) | |
2245 | { | |
2246 | buf_alloc *= 2; | |
2247 | buf = xrealloc (buf, buf_alloc); | |
2248 | } | |
2249 | ||
2250 | QUIT; | |
2251 | } | |
2252 | } | |
2253 | ||
159f81f3 DJ |
2254 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2255 | the size of the transferred data. See the declaration in "target.h" | |
2256 | function for more information about the return value. */ | |
2257 | ||
2258 | LONGEST | |
2259 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2260 | const char *annex, gdb_byte **buf_p) | |
2261 | { | |
2262 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2263 | } | |
2264 | ||
2265 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2266 | returned as a string, allocated using xmalloc. If an error occurs | |
2267 | or the transfer is unsupported, NULL is returned. Empty objects | |
2268 | are returned as allocated but empty strings. A warning is issued | |
2269 | if the result contains any embedded NUL bytes. */ | |
2270 | ||
2271 | char * | |
2272 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2273 | const char *annex) | |
2274 | { | |
39086a0e PA |
2275 | gdb_byte *buffer; |
2276 | char *bufstr; | |
7313baad | 2277 | LONGEST i, transferred; |
159f81f3 | 2278 | |
39086a0e PA |
2279 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2280 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2281 | |
2282 | if (transferred < 0) | |
2283 | return NULL; | |
2284 | ||
2285 | if (transferred == 0) | |
2286 | return xstrdup (""); | |
2287 | ||
39086a0e | 2288 | bufstr[transferred] = 0; |
7313baad UW |
2289 | |
2290 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2291 | for (i = strlen (bufstr); i < transferred; i++) |
2292 | if (bufstr[i] != 0) | |
7313baad UW |
2293 | { |
2294 | warning (_("target object %d, annex %s, " | |
2295 | "contained unexpected null characters"), | |
2296 | (int) object, annex ? annex : "(none)"); | |
2297 | break; | |
2298 | } | |
159f81f3 | 2299 | |
39086a0e | 2300 | return bufstr; |
159f81f3 DJ |
2301 | } |
2302 | ||
b6591e8b AC |
2303 | /* Memory transfer methods. */ |
2304 | ||
2305 | void | |
1b0ba102 | 2306 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2307 | LONGEST len) |
2308 | { | |
07b82ea5 PA |
2309 | /* This method is used to read from an alternate, non-current |
2310 | target. This read must bypass the overlay support (as symbols | |
2311 | don't match this target), and GDB's internal cache (wrong cache | |
2312 | for this target). */ | |
2313 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2314 | != len) |
578d3588 | 2315 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2316 | } |
2317 | ||
2318 | ULONGEST | |
5d502164 MS |
2319 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2320 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2321 | { |
f6519ebc | 2322 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2323 | |
2324 | gdb_assert (len <= sizeof (buf)); | |
2325 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2326 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2327 | } |
2328 | ||
3db08215 MM |
2329 | /* See target.h. */ |
2330 | ||
d914c394 SS |
2331 | int |
2332 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2333 | struct bp_target_info *bp_tgt) | |
2334 | { | |
2335 | if (!may_insert_breakpoints) | |
2336 | { | |
2337 | warning (_("May not insert breakpoints")); | |
2338 | return 1; | |
2339 | } | |
2340 | ||
6b84065d TT |
2341 | return current_target.to_insert_breakpoint (¤t_target, |
2342 | gdbarch, bp_tgt); | |
d914c394 SS |
2343 | } |
2344 | ||
3db08215 MM |
2345 | /* See target.h. */ |
2346 | ||
d914c394 | 2347 | int |
6b84065d TT |
2348 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2349 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2350 | { |
2351 | /* This is kind of a weird case to handle, but the permission might | |
2352 | have been changed after breakpoints were inserted - in which case | |
2353 | we should just take the user literally and assume that any | |
2354 | breakpoints should be left in place. */ | |
2355 | if (!may_insert_breakpoints) | |
2356 | { | |
2357 | warning (_("May not remove breakpoints")); | |
2358 | return 1; | |
2359 | } | |
2360 | ||
6b84065d TT |
2361 | return current_target.to_remove_breakpoint (¤t_target, |
2362 | gdbarch, bp_tgt); | |
d914c394 SS |
2363 | } |
2364 | ||
c906108c | 2365 | static void |
fba45db2 | 2366 | target_info (char *args, int from_tty) |
c906108c SS |
2367 | { |
2368 | struct target_ops *t; | |
c906108c | 2369 | int has_all_mem = 0; |
c5aa993b | 2370 | |
c906108c | 2371 | if (symfile_objfile != NULL) |
4262abfb JK |
2372 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2373 | objfile_name (symfile_objfile)); | |
c906108c | 2374 | |
258b763a | 2375 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2376 | { |
c35b1492 | 2377 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2378 | continue; |
2379 | ||
c5aa993b | 2380 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2381 | continue; |
2382 | if (has_all_mem) | |
3e43a32a MS |
2383 | printf_unfiltered (_("\tWhile running this, " |
2384 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2385 | printf_unfiltered ("%s:\n", t->to_longname); |
2386 | (t->to_files_info) (t); | |
c35b1492 | 2387 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2388 | } |
2389 | } | |
2390 | ||
fd79ecee DJ |
2391 | /* This function is called before any new inferior is created, e.g. |
2392 | by running a program, attaching, or connecting to a target. | |
2393 | It cleans up any state from previous invocations which might | |
2394 | change between runs. This is a subset of what target_preopen | |
2395 | resets (things which might change between targets). */ | |
2396 | ||
2397 | void | |
2398 | target_pre_inferior (int from_tty) | |
2399 | { | |
c378eb4e | 2400 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2401 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2402 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2403 | to reproduce: |
2404 | ||
2405 | bash$ ./foo& | |
2406 | [1] 4711 | |
2407 | bash$ ./foo& | |
2408 | [1] 4712 | |
2409 | bash$ gdb ./foo | |
2410 | [...] | |
2411 | (gdb) attach 4711 | |
2412 | (gdb) detach | |
2413 | (gdb) attach 4712 | |
2414 | Cannot access memory at address 0xdeadbeef | |
2415 | */ | |
b9db4ced | 2416 | |
50c71eaf PA |
2417 | /* In some OSs, the shared library list is the same/global/shared |
2418 | across inferiors. If code is shared between processes, so are | |
2419 | memory regions and features. */ | |
f5656ead | 2420 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2421 | { |
2422 | no_shared_libraries (NULL, from_tty); | |
2423 | ||
2424 | invalidate_target_mem_regions (); | |
424163ea | 2425 | |
50c71eaf PA |
2426 | target_clear_description (); |
2427 | } | |
8ffcbaaf YQ |
2428 | |
2429 | agent_capability_invalidate (); | |
fd79ecee DJ |
2430 | } |
2431 | ||
b8fa0bfa PA |
2432 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2433 | inferior. */ | |
2434 | ||
2435 | static int | |
2436 | dispose_inferior (struct inferior *inf, void *args) | |
2437 | { | |
2438 | struct thread_info *thread; | |
2439 | ||
2440 | thread = any_thread_of_process (inf->pid); | |
2441 | if (thread) | |
2442 | { | |
2443 | switch_to_thread (thread->ptid); | |
2444 | ||
2445 | /* Core inferiors actually should be detached, not killed. */ | |
2446 | if (target_has_execution) | |
2447 | target_kill (); | |
2448 | else | |
2449 | target_detach (NULL, 0); | |
2450 | } | |
2451 | ||
2452 | return 0; | |
2453 | } | |
2454 | ||
c906108c SS |
2455 | /* This is to be called by the open routine before it does |
2456 | anything. */ | |
2457 | ||
2458 | void | |
fba45db2 | 2459 | target_preopen (int from_tty) |
c906108c | 2460 | { |
c5aa993b | 2461 | dont_repeat (); |
c906108c | 2462 | |
b8fa0bfa | 2463 | if (have_inferiors ()) |
c5aa993b | 2464 | { |
adf40b2e | 2465 | if (!from_tty |
b8fa0bfa PA |
2466 | || !have_live_inferiors () |
2467 | || query (_("A program is being debugged already. Kill it? "))) | |
2468 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2469 | else |
8a3fe4f8 | 2470 | error (_("Program not killed.")); |
c906108c SS |
2471 | } |
2472 | ||
2473 | /* Calling target_kill may remove the target from the stack. But if | |
2474 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2475 | /* Leave the exec target, though. The user may be switching from a |
2476 | live process to a core of the same program. */ | |
460014f5 | 2477 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2478 | |
2479 | target_pre_inferior (from_tty); | |
c906108c SS |
2480 | } |
2481 | ||
2482 | /* Detach a target after doing deferred register stores. */ | |
2483 | ||
2484 | void | |
52554a0e | 2485 | target_detach (const char *args, int from_tty) |
c906108c | 2486 | { |
136d6dae VP |
2487 | struct target_ops* t; |
2488 | ||
f5656ead | 2489 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2490 | /* Don't remove global breakpoints here. They're removed on |
2491 | disconnection from the target. */ | |
2492 | ; | |
2493 | else | |
2494 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2495 | them before detaching. */ | |
dfd4cc63 | 2496 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2497 | |
24291992 PA |
2498 | prepare_for_detach (); |
2499 | ||
09da0d0a TT |
2500 | current_target.to_detach (¤t_target, args, from_tty); |
2501 | if (targetdebug) | |
2502 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2503 | args, from_tty); | |
c906108c SS |
2504 | } |
2505 | ||
6ad8ae5c DJ |
2506 | void |
2507 | target_disconnect (char *args, int from_tty) | |
2508 | { | |
597320e7 DJ |
2509 | struct target_ops *t; |
2510 | ||
50c71eaf PA |
2511 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2512 | are global across processes, we have to remove them before | |
2513 | disconnecting. */ | |
74960c60 VP |
2514 | remove_breakpoints (); |
2515 | ||
597320e7 DJ |
2516 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2517 | if (t->to_disconnect != NULL) | |
2518 | { | |
2519 | if (targetdebug) | |
2520 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2521 | args, from_tty); | |
2522 | t->to_disconnect (t, args, from_tty); | |
2523 | return; | |
2524 | } | |
2525 | ||
2526 | tcomplain (); | |
6ad8ae5c DJ |
2527 | } |
2528 | ||
117de6a9 | 2529 | ptid_t |
47608cb1 | 2530 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2531 | { |
2532 | struct target_ops *t; | |
6b84065d TT |
2533 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2534 | status, options); | |
117de6a9 | 2535 | |
6b84065d | 2536 | if (targetdebug) |
117de6a9 | 2537 | { |
6b84065d TT |
2538 | char *status_string; |
2539 | char *options_string; | |
117de6a9 | 2540 | |
6b84065d TT |
2541 | status_string = target_waitstatus_to_string (status); |
2542 | options_string = target_options_to_string (options); | |
2543 | fprintf_unfiltered (gdb_stdlog, | |
2544 | "target_wait (%d, status, options={%s})" | |
2545 | " = %d, %s\n", | |
2546 | ptid_get_pid (ptid), options_string, | |
2547 | ptid_get_pid (retval), status_string); | |
2548 | xfree (status_string); | |
2549 | xfree (options_string); | |
117de6a9 PA |
2550 | } |
2551 | ||
6b84065d | 2552 | return retval; |
117de6a9 PA |
2553 | } |
2554 | ||
2555 | char * | |
2556 | target_pid_to_str (ptid_t ptid) | |
2557 | { | |
2558 | struct target_ops *t; | |
2559 | ||
2560 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2561 | { | |
2562 | if (t->to_pid_to_str != NULL) | |
2563 | return (*t->to_pid_to_str) (t, ptid); | |
2564 | } | |
2565 | ||
2566 | return normal_pid_to_str (ptid); | |
2567 | } | |
2568 | ||
4694da01 TT |
2569 | char * |
2570 | target_thread_name (struct thread_info *info) | |
2571 | { | |
825828fc | 2572 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2573 | } |
2574 | ||
e1ac3328 | 2575 | void |
2ea28649 | 2576 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2577 | { |
28439f5e PA |
2578 | struct target_ops *t; |
2579 | ||
4e5d721f | 2580 | target_dcache_invalidate (); |
28439f5e | 2581 | |
6b84065d TT |
2582 | current_target.to_resume (¤t_target, ptid, step, signal); |
2583 | if (targetdebug) | |
2584 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2585 | ptid_get_pid (ptid), | |
2586 | step ? "step" : "continue", | |
2587 | gdb_signal_to_name (signal)); | |
28439f5e | 2588 | |
6b84065d TT |
2589 | registers_changed_ptid (ptid); |
2590 | set_executing (ptid, 1); | |
2591 | set_running (ptid, 1); | |
2592 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2593 | } |
2455069d UW |
2594 | |
2595 | void | |
2596 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2597 | { | |
2598 | struct target_ops *t; | |
2599 | ||
2600 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2601 | { | |
2602 | if (t->to_pass_signals != NULL) | |
2603 | { | |
2604 | if (targetdebug) | |
2605 | { | |
2606 | int i; | |
2607 | ||
2608 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2609 | numsigs); | |
2610 | ||
2611 | for (i = 0; i < numsigs; i++) | |
2612 | if (pass_signals[i]) | |
2613 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2614 | gdb_signal_to_name (i)); |
2455069d UW |
2615 | |
2616 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2617 | } | |
2618 | ||
94bedb42 | 2619 | (*t->to_pass_signals) (t, numsigs, pass_signals); |
2455069d UW |
2620 | return; |
2621 | } | |
2622 | } | |
2623 | } | |
2624 | ||
9b224c5e PA |
2625 | void |
2626 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2627 | { | |
2628 | struct target_ops *t; | |
2629 | ||
2630 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2631 | { | |
2632 | if (t->to_program_signals != NULL) | |
2633 | { | |
2634 | if (targetdebug) | |
2635 | { | |
2636 | int i; | |
2637 | ||
2638 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2639 | numsigs); | |
2640 | ||
2641 | for (i = 0; i < numsigs; i++) | |
2642 | if (program_signals[i]) | |
2643 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2644 | gdb_signal_to_name (i)); |
9b224c5e PA |
2645 | |
2646 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2647 | } | |
2648 | ||
daf5e9b6 | 2649 | (*t->to_program_signals) (t, numsigs, program_signals); |
9b224c5e PA |
2650 | return; |
2651 | } | |
2652 | } | |
2653 | } | |
2654 | ||
ee057212 DJ |
2655 | /* Look through the list of possible targets for a target that can |
2656 | follow forks. */ | |
2657 | ||
2658 | int | |
07107ca6 | 2659 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2660 | { |
2661 | struct target_ops *t; | |
2662 | ||
2663 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2664 | { | |
2665 | if (t->to_follow_fork != NULL) | |
2666 | { | |
07107ca6 | 2667 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2668 | |
ee057212 | 2669 | if (targetdebug) |
07107ca6 LM |
2670 | fprintf_unfiltered (gdb_stdlog, |
2671 | "target_follow_fork (%d, %d) = %d\n", | |
2672 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2673 | return retval; |
2674 | } | |
2675 | } | |
2676 | ||
2677 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2678 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2679 | _("could not find a target to follow fork")); |
ee057212 DJ |
2680 | } |
2681 | ||
136d6dae VP |
2682 | void |
2683 | target_mourn_inferior (void) | |
2684 | { | |
2685 | struct target_ops *t; | |
5d502164 | 2686 | |
136d6dae VP |
2687 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2688 | { | |
2689 | if (t->to_mourn_inferior != NULL) | |
2690 | { | |
2691 | t->to_mourn_inferior (t); | |
947b8855 PA |
2692 | if (targetdebug) |
2693 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2694 | |
2695 | /* We no longer need to keep handles on any of the object files. | |
2696 | Make sure to release them to avoid unnecessarily locking any | |
2697 | of them while we're not actually debugging. */ | |
2698 | bfd_cache_close_all (); | |
2699 | ||
136d6dae VP |
2700 | return; |
2701 | } | |
2702 | } | |
2703 | ||
2704 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2705 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2706 | } |
2707 | ||
424163ea DJ |
2708 | /* Look for a target which can describe architectural features, starting |
2709 | from TARGET. If we find one, return its description. */ | |
2710 | ||
2711 | const struct target_desc * | |
2712 | target_read_description (struct target_ops *target) | |
2713 | { | |
2714 | struct target_ops *t; | |
2715 | ||
2716 | for (t = target; t != NULL; t = t->beneath) | |
2717 | if (t->to_read_description != NULL) | |
2718 | { | |
2719 | const struct target_desc *tdesc; | |
2720 | ||
2721 | tdesc = t->to_read_description (t); | |
2722 | if (tdesc) | |
2723 | return tdesc; | |
2724 | } | |
2725 | ||
2726 | return NULL; | |
2727 | } | |
2728 | ||
08388c79 DE |
2729 | /* The default implementation of to_search_memory. |
2730 | This implements a basic search of memory, reading target memory and | |
2731 | performing the search here (as opposed to performing the search in on the | |
2732 | target side with, for example, gdbserver). */ | |
2733 | ||
2734 | int | |
2735 | simple_search_memory (struct target_ops *ops, | |
2736 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2737 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2738 | CORE_ADDR *found_addrp) | |
2739 | { | |
2740 | /* NOTE: also defined in find.c testcase. */ | |
2741 | #define SEARCH_CHUNK_SIZE 16000 | |
2742 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2743 | /* Buffer to hold memory contents for searching. */ | |
2744 | gdb_byte *search_buf; | |
2745 | unsigned search_buf_size; | |
2746 | struct cleanup *old_cleanups; | |
2747 | ||
2748 | search_buf_size = chunk_size + pattern_len - 1; | |
2749 | ||
2750 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2751 | if (search_space_len < search_buf_size) | |
2752 | search_buf_size = search_space_len; | |
2753 | ||
2754 | search_buf = malloc (search_buf_size); | |
2755 | if (search_buf == NULL) | |
5e1471f5 | 2756 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2757 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2758 | ||
2759 | /* Prime the search buffer. */ | |
2760 | ||
2761 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2762 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2763 | { | |
b3dc46ff AB |
2764 | warning (_("Unable to access %s bytes of target " |
2765 | "memory at %s, halting search."), | |
2766 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2767 | do_cleanups (old_cleanups); |
2768 | return -1; | |
2769 | } | |
2770 | ||
2771 | /* Perform the search. | |
2772 | ||
2773 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2774 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2775 | read in another N bytes. */ | |
2776 | ||
2777 | while (search_space_len >= pattern_len) | |
2778 | { | |
2779 | gdb_byte *found_ptr; | |
2780 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2781 | ||
2782 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2783 | pattern, pattern_len); | |
2784 | ||
2785 | if (found_ptr != NULL) | |
2786 | { | |
2787 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2788 | |
08388c79 DE |
2789 | *found_addrp = found_addr; |
2790 | do_cleanups (old_cleanups); | |
2791 | return 1; | |
2792 | } | |
2793 | ||
2794 | /* Not found in this chunk, skip to next chunk. */ | |
2795 | ||
2796 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2797 | if (search_space_len >= chunk_size) | |
2798 | search_space_len -= chunk_size; | |
2799 | else | |
2800 | search_space_len = 0; | |
2801 | ||
2802 | if (search_space_len >= pattern_len) | |
2803 | { | |
2804 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2805 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2806 | int nr_to_read; |
2807 | ||
2808 | /* Copy the trailing part of the previous iteration to the front | |
2809 | of the buffer for the next iteration. */ | |
2810 | gdb_assert (keep_len == pattern_len - 1); | |
2811 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2812 | ||
2813 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2814 | ||
2815 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2816 | search_buf + keep_len, read_addr, | |
2817 | nr_to_read) != nr_to_read) | |
2818 | { | |
b3dc46ff | 2819 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2820 | "memory at %s, halting search."), |
b3dc46ff | 2821 | plongest (nr_to_read), |
08388c79 DE |
2822 | hex_string (read_addr)); |
2823 | do_cleanups (old_cleanups); | |
2824 | return -1; | |
2825 | } | |
2826 | ||
2827 | start_addr += chunk_size; | |
2828 | } | |
2829 | } | |
2830 | ||
2831 | /* Not found. */ | |
2832 | ||
2833 | do_cleanups (old_cleanups); | |
2834 | return 0; | |
2835 | } | |
2836 | ||
2837 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2838 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2839 | ||
2840 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2841 | requiring halting of the search (e.g. memory read error). | |
2842 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2843 | ||
2844 | int | |
2845 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2846 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2847 | CORE_ADDR *found_addrp) | |
2848 | { | |
2849 | struct target_ops *t; | |
2850 | int found; | |
2851 | ||
2852 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2853 | so we have to scan the target stack and handle targetdebug | |
2854 | ourselves. */ | |
2855 | ||
2856 | if (targetdebug) | |
2857 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2858 | hex_string (start_addr)); | |
2859 | ||
2860 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2861 | if (t->to_search_memory != NULL) | |
2862 | break; | |
2863 | ||
2864 | if (t != NULL) | |
2865 | { | |
2866 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2867 | pattern, pattern_len, found_addrp); | |
2868 | } | |
2869 | else | |
2870 | { | |
2871 | /* If a special version of to_search_memory isn't available, use the | |
2872 | simple version. */ | |
c35b1492 | 2873 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2874 | start_addr, search_space_len, |
2875 | pattern, pattern_len, found_addrp); | |
2876 | } | |
2877 | ||
2878 | if (targetdebug) | |
2879 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2880 | ||
2881 | return found; | |
2882 | } | |
2883 | ||
8edfe269 DJ |
2884 | /* Look through the currently pushed targets. If none of them will |
2885 | be able to restart the currently running process, issue an error | |
2886 | message. */ | |
2887 | ||
2888 | void | |
2889 | target_require_runnable (void) | |
2890 | { | |
2891 | struct target_ops *t; | |
2892 | ||
2893 | for (t = target_stack; t != NULL; t = t->beneath) | |
2894 | { | |
2895 | /* If this target knows how to create a new program, then | |
2896 | assume we will still be able to after killing the current | |
2897 | one. Either killing and mourning will not pop T, or else | |
2898 | find_default_run_target will find it again. */ | |
2899 | if (t->to_create_inferior != NULL) | |
2900 | return; | |
2901 | ||
2902 | /* Do not worry about thread_stratum targets that can not | |
2903 | create inferiors. Assume they will be pushed again if | |
2904 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2905 | if (t->to_stratum == thread_stratum |
2906 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2907 | continue; |
2908 | ||
3e43a32a MS |
2909 | error (_("The \"%s\" target does not support \"run\". " |
2910 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2911 | t->to_shortname); |
2912 | } | |
2913 | ||
2914 | /* This function is only called if the target is running. In that | |
2915 | case there should have been a process_stratum target and it | |
c378eb4e | 2916 | should either know how to create inferiors, or not... */ |
9b20d036 | 2917 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2918 | } |
2919 | ||
c906108c SS |
2920 | /* Look through the list of possible targets for a target that can |
2921 | execute a run or attach command without any other data. This is | |
2922 | used to locate the default process stratum. | |
2923 | ||
5f667f2d PA |
2924 | If DO_MESG is not NULL, the result is always valid (error() is |
2925 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2926 | |
2927 | static struct target_ops * | |
fba45db2 | 2928 | find_default_run_target (char *do_mesg) |
c906108c SS |
2929 | { |
2930 | struct target_ops **t; | |
2931 | struct target_ops *runable = NULL; | |
2932 | int count; | |
2933 | ||
2934 | count = 0; | |
2935 | ||
2936 | for (t = target_structs; t < target_structs + target_struct_size; | |
2937 | ++t) | |
2938 | { | |
c5aa993b | 2939 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2940 | { |
2941 | runable = *t; | |
2942 | ++count; | |
2943 | } | |
2944 | } | |
2945 | ||
2946 | if (count != 1) | |
5f667f2d PA |
2947 | { |
2948 | if (do_mesg) | |
2949 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2950 | else | |
2951 | return NULL; | |
2952 | } | |
c906108c SS |
2953 | |
2954 | return runable; | |
2955 | } | |
2956 | ||
2957 | void | |
136d6dae | 2958 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2959 | { |
2960 | struct target_ops *t; | |
2961 | ||
c5aa993b | 2962 | t = find_default_run_target ("attach"); |
136d6dae | 2963 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2964 | return; |
2965 | } | |
2966 | ||
c906108c | 2967 | void |
136d6dae VP |
2968 | find_default_create_inferior (struct target_ops *ops, |
2969 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2970 | int from_tty) |
c906108c SS |
2971 | { |
2972 | struct target_ops *t; | |
2973 | ||
c5aa993b | 2974 | t = find_default_run_target ("run"); |
136d6dae | 2975 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
2976 | return; |
2977 | } | |
2978 | ||
2c0b251b | 2979 | static int |
6a109b6b | 2980 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
2981 | { |
2982 | struct target_ops *t; | |
2983 | ||
5f667f2d PA |
2984 | /* This may be called before the target is pushed on the stack; |
2985 | look for the default process stratum. If there's none, gdb isn't | |
2986 | configured with a native debugger, and target remote isn't | |
2987 | connected yet. */ | |
2988 | t = find_default_run_target (NULL); | |
6b84065d | 2989 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 2990 | return (t->to_can_async_p) (t); |
b84876c2 PA |
2991 | return 0; |
2992 | } | |
2993 | ||
2c0b251b | 2994 | static int |
6a109b6b | 2995 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
2996 | { |
2997 | struct target_ops *t; | |
2998 | ||
5f667f2d PA |
2999 | /* This may be called before the target is pushed on the stack; |
3000 | look for the default process stratum. If there's none, gdb isn't | |
3001 | configured with a native debugger, and target remote isn't | |
3002 | connected yet. */ | |
3003 | t = find_default_run_target (NULL); | |
6b84065d | 3004 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 3005 | return (t->to_is_async_p) (t); |
b84876c2 PA |
3006 | return 0; |
3007 | } | |
3008 | ||
2c0b251b | 3009 | static int |
2a9a2795 | 3010 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
3011 | { |
3012 | struct target_ops *t; | |
3013 | ||
3014 | t = find_default_run_target (NULL); | |
3015 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 3016 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
3017 | return 0; |
3018 | } | |
3019 | ||
3020 | int | |
2c0b251b | 3021 | target_supports_non_stop (void) |
9908b566 VP |
3022 | { |
3023 | struct target_ops *t; | |
5d502164 | 3024 | |
9908b566 VP |
3025 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3026 | if (t->to_supports_non_stop) | |
2a9a2795 | 3027 | return t->to_supports_non_stop (t); |
9908b566 VP |
3028 | |
3029 | return 0; | |
3030 | } | |
3031 | ||
145b16a9 UW |
3032 | /* Implement the "info proc" command. */ |
3033 | ||
451b7c33 | 3034 | int |
145b16a9 UW |
3035 | target_info_proc (char *args, enum info_proc_what what) |
3036 | { | |
3037 | struct target_ops *t; | |
3038 | ||
3039 | /* If we're already connected to something that can get us OS | |
3040 | related data, use it. Otherwise, try using the native | |
3041 | target. */ | |
3042 | if (current_target.to_stratum >= process_stratum) | |
3043 | t = current_target.beneath; | |
3044 | else | |
3045 | t = find_default_run_target (NULL); | |
3046 | ||
3047 | for (; t != NULL; t = t->beneath) | |
3048 | { | |
3049 | if (t->to_info_proc != NULL) | |
3050 | { | |
3051 | t->to_info_proc (t, args, what); | |
3052 | ||
3053 | if (targetdebug) | |
3054 | fprintf_unfiltered (gdb_stdlog, | |
3055 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3056 | ||
451b7c33 | 3057 | return 1; |
145b16a9 UW |
3058 | } |
3059 | } | |
3060 | ||
451b7c33 | 3061 | return 0; |
145b16a9 UW |
3062 | } |
3063 | ||
03583c20 | 3064 | static int |
2bfc0540 | 3065 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
3066 | { |
3067 | struct target_ops *t; | |
3068 | ||
3069 | t = find_default_run_target (NULL); | |
3070 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 3071 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
3072 | return 0; |
3073 | } | |
3074 | ||
3075 | int | |
3076 | target_supports_disable_randomization (void) | |
3077 | { | |
3078 | struct target_ops *t; | |
3079 | ||
3080 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3081 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 3082 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
3083 | |
3084 | return 0; | |
3085 | } | |
9908b566 | 3086 | |
07e059b5 VP |
3087 | char * |
3088 | target_get_osdata (const char *type) | |
3089 | { | |
07e059b5 VP |
3090 | struct target_ops *t; |
3091 | ||
739ef7fb PA |
3092 | /* If we're already connected to something that can get us OS |
3093 | related data, use it. Otherwise, try using the native | |
3094 | target. */ | |
3095 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3096 | t = current_target.beneath; |
739ef7fb PA |
3097 | else |
3098 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3099 | |
3100 | if (!t) | |
3101 | return NULL; | |
3102 | ||
6d097e65 | 3103 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3104 | } |
3105 | ||
6c95b8df PA |
3106 | /* Determine the current address space of thread PTID. */ |
3107 | ||
3108 | struct address_space * | |
3109 | target_thread_address_space (ptid_t ptid) | |
3110 | { | |
c0694254 | 3111 | struct address_space *aspace; |
6c95b8df | 3112 | struct inferior *inf; |
c0694254 PA |
3113 | struct target_ops *t; |
3114 | ||
3115 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3116 | { | |
3117 | if (t->to_thread_address_space != NULL) | |
3118 | { | |
3119 | aspace = t->to_thread_address_space (t, ptid); | |
3120 | gdb_assert (aspace); | |
6c95b8df | 3121 | |
c0694254 PA |
3122 | if (targetdebug) |
3123 | fprintf_unfiltered (gdb_stdlog, | |
3124 | "target_thread_address_space (%s) = %d\n", | |
3125 | target_pid_to_str (ptid), | |
3126 | address_space_num (aspace)); | |
3127 | return aspace; | |
3128 | } | |
3129 | } | |
6c95b8df PA |
3130 | |
3131 | /* Fall-back to the "main" address space of the inferior. */ | |
3132 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3133 | ||
3134 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3135 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3136 | _("Can't determine the current " |
3137 | "address space of thread %s\n"), | |
6c95b8df PA |
3138 | target_pid_to_str (ptid)); |
3139 | ||
3140 | return inf->aspace; | |
3141 | } | |
3142 | ||
7313baad UW |
3143 | |
3144 | /* Target file operations. */ | |
3145 | ||
3146 | static struct target_ops * | |
3147 | default_fileio_target (void) | |
3148 | { | |
3149 | /* If we're already connected to something that can perform | |
3150 | file I/O, use it. Otherwise, try using the native target. */ | |
3151 | if (current_target.to_stratum >= process_stratum) | |
3152 | return current_target.beneath; | |
3153 | else | |
3154 | return find_default_run_target ("file I/O"); | |
3155 | } | |
3156 | ||
3157 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3158 | target file descriptor, or -1 if an error occurs (and set | |
3159 | *TARGET_ERRNO). */ | |
3160 | int | |
3161 | target_fileio_open (const char *filename, int flags, int mode, | |
3162 | int *target_errno) | |
3163 | { | |
3164 | struct target_ops *t; | |
3165 | ||
3166 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3167 | { | |
3168 | if (t->to_fileio_open != NULL) | |
3169 | { | |
cd897586 | 3170 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
3171 | |
3172 | if (targetdebug) | |
3173 | fprintf_unfiltered (gdb_stdlog, | |
3174 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3175 | filename, flags, mode, | |
3176 | fd, fd != -1 ? 0 : *target_errno); | |
3177 | return fd; | |
3178 | } | |
3179 | } | |
3180 | ||
3181 | *target_errno = FILEIO_ENOSYS; | |
3182 | return -1; | |
3183 | } | |
3184 | ||
3185 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3186 | Return the number of bytes written, or -1 if an error occurs | |
3187 | (and set *TARGET_ERRNO). */ | |
3188 | int | |
3189 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3190 | ULONGEST offset, int *target_errno) | |
3191 | { | |
3192 | struct target_ops *t; | |
3193 | ||
3194 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3195 | { | |
3196 | if (t->to_fileio_pwrite != NULL) | |
3197 | { | |
0d866f62 | 3198 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
3199 | target_errno); |
3200 | ||
3201 | if (targetdebug) | |
3202 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3203 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3204 | "= %d (%d)\n", |
a71b5a38 | 3205 | fd, len, pulongest (offset), |
7313baad UW |
3206 | ret, ret != -1 ? 0 : *target_errno); |
3207 | return ret; | |
3208 | } | |
3209 | } | |
3210 | ||
3211 | *target_errno = FILEIO_ENOSYS; | |
3212 | return -1; | |
3213 | } | |
3214 | ||
3215 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3216 | Return the number of bytes read, or -1 if an error occurs | |
3217 | (and set *TARGET_ERRNO). */ | |
3218 | int | |
3219 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3220 | ULONGEST offset, int *target_errno) | |
3221 | { | |
3222 | struct target_ops *t; | |
3223 | ||
3224 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3225 | { | |
3226 | if (t->to_fileio_pread != NULL) | |
3227 | { | |
a3be983c | 3228 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
3229 | target_errno); |
3230 | ||
3231 | if (targetdebug) | |
3232 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3233 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3234 | "= %d (%d)\n", |
a71b5a38 | 3235 | fd, len, pulongest (offset), |
7313baad UW |
3236 | ret, ret != -1 ? 0 : *target_errno); |
3237 | return ret; | |
3238 | } | |
3239 | } | |
3240 | ||
3241 | *target_errno = FILEIO_ENOSYS; | |
3242 | return -1; | |
3243 | } | |
3244 | ||
3245 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3246 | (and set *TARGET_ERRNO). */ | |
3247 | int | |
3248 | target_fileio_close (int fd, int *target_errno) | |
3249 | { | |
3250 | struct target_ops *t; | |
3251 | ||
3252 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3253 | { | |
3254 | if (t->to_fileio_close != NULL) | |
3255 | { | |
df39ea25 | 3256 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
3257 | |
3258 | if (targetdebug) | |
3259 | fprintf_unfiltered (gdb_stdlog, | |
3260 | "target_fileio_close (%d) = %d (%d)\n", | |
3261 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3262 | return ret; | |
3263 | } | |
3264 | } | |
3265 | ||
3266 | *target_errno = FILEIO_ENOSYS; | |
3267 | return -1; | |
3268 | } | |
3269 | ||
3270 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3271 | occurs (and set *TARGET_ERRNO). */ | |
3272 | int | |
3273 | target_fileio_unlink (const char *filename, int *target_errno) | |
3274 | { | |
3275 | struct target_ops *t; | |
3276 | ||
3277 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3278 | { | |
3279 | if (t->to_fileio_unlink != NULL) | |
3280 | { | |
dbbca37d | 3281 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
3282 | |
3283 | if (targetdebug) | |
3284 | fprintf_unfiltered (gdb_stdlog, | |
3285 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3286 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3287 | return ret; | |
3288 | } | |
3289 | } | |
3290 | ||
3291 | *target_errno = FILEIO_ENOSYS; | |
3292 | return -1; | |
3293 | } | |
3294 | ||
b9e7b9c3 UW |
3295 | /* Read value of symbolic link FILENAME on the target. Return a |
3296 | null-terminated string allocated via xmalloc, or NULL if an error | |
3297 | occurs (and set *TARGET_ERRNO). */ | |
3298 | char * | |
3299 | target_fileio_readlink (const char *filename, int *target_errno) | |
3300 | { | |
3301 | struct target_ops *t; | |
3302 | ||
3303 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3304 | { | |
3305 | if (t->to_fileio_readlink != NULL) | |
3306 | { | |
fab5aa7c | 3307 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
3308 | |
3309 | if (targetdebug) | |
3310 | fprintf_unfiltered (gdb_stdlog, | |
3311 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3312 | filename, ret? ret : "(nil)", | |
3313 | ret? 0 : *target_errno); | |
3314 | return ret; | |
3315 | } | |
3316 | } | |
3317 | ||
3318 | *target_errno = FILEIO_ENOSYS; | |
3319 | return NULL; | |
3320 | } | |
3321 | ||
7313baad UW |
3322 | static void |
3323 | target_fileio_close_cleanup (void *opaque) | |
3324 | { | |
3325 | int fd = *(int *) opaque; | |
3326 | int target_errno; | |
3327 | ||
3328 | target_fileio_close (fd, &target_errno); | |
3329 | } | |
3330 | ||
3331 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3332 | return the size of the transferred data. PADDING additional bytes are | |
3333 | available in *BUF_P. This is a helper function for | |
3334 | target_fileio_read_alloc; see the declaration of that function for more | |
3335 | information. */ | |
3336 | ||
3337 | static LONGEST | |
3338 | target_fileio_read_alloc_1 (const char *filename, | |
3339 | gdb_byte **buf_p, int padding) | |
3340 | { | |
3341 | struct cleanup *close_cleanup; | |
3342 | size_t buf_alloc, buf_pos; | |
3343 | gdb_byte *buf; | |
3344 | LONGEST n; | |
3345 | int fd; | |
3346 | int target_errno; | |
3347 | ||
3348 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3349 | if (fd == -1) | |
3350 | return -1; | |
3351 | ||
3352 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3353 | ||
3354 | /* Start by reading up to 4K at a time. The target will throttle | |
3355 | this number down if necessary. */ | |
3356 | buf_alloc = 4096; | |
3357 | buf = xmalloc (buf_alloc); | |
3358 | buf_pos = 0; | |
3359 | while (1) | |
3360 | { | |
3361 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3362 | buf_alloc - buf_pos - padding, buf_pos, | |
3363 | &target_errno); | |
3364 | if (n < 0) | |
3365 | { | |
3366 | /* An error occurred. */ | |
3367 | do_cleanups (close_cleanup); | |
3368 | xfree (buf); | |
3369 | return -1; | |
3370 | } | |
3371 | else if (n == 0) | |
3372 | { | |
3373 | /* Read all there was. */ | |
3374 | do_cleanups (close_cleanup); | |
3375 | if (buf_pos == 0) | |
3376 | xfree (buf); | |
3377 | else | |
3378 | *buf_p = buf; | |
3379 | return buf_pos; | |
3380 | } | |
3381 | ||
3382 | buf_pos += n; | |
3383 | ||
3384 | /* If the buffer is filling up, expand it. */ | |
3385 | if (buf_alloc < buf_pos * 2) | |
3386 | { | |
3387 | buf_alloc *= 2; | |
3388 | buf = xrealloc (buf, buf_alloc); | |
3389 | } | |
3390 | ||
3391 | QUIT; | |
3392 | } | |
3393 | } | |
3394 | ||
3395 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3396 | the size of the transferred data. See the declaration in "target.h" | |
3397 | function for more information about the return value. */ | |
3398 | ||
3399 | LONGEST | |
3400 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3401 | { | |
3402 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3403 | } | |
3404 | ||
3405 | /* Read target file FILENAME. The result is NUL-terminated and | |
3406 | returned as a string, allocated using xmalloc. If an error occurs | |
3407 | or the transfer is unsupported, NULL is returned. Empty objects | |
3408 | are returned as allocated but empty strings. A warning is issued | |
3409 | if the result contains any embedded NUL bytes. */ | |
3410 | ||
3411 | char * | |
3412 | target_fileio_read_stralloc (const char *filename) | |
3413 | { | |
39086a0e PA |
3414 | gdb_byte *buffer; |
3415 | char *bufstr; | |
7313baad UW |
3416 | LONGEST i, transferred; |
3417 | ||
39086a0e PA |
3418 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3419 | bufstr = (char *) buffer; | |
7313baad UW |
3420 | |
3421 | if (transferred < 0) | |
3422 | return NULL; | |
3423 | ||
3424 | if (transferred == 0) | |
3425 | return xstrdup (""); | |
3426 | ||
39086a0e | 3427 | bufstr[transferred] = 0; |
7313baad UW |
3428 | |
3429 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3430 | for (i = strlen (bufstr); i < transferred; i++) |
3431 | if (bufstr[i] != 0) | |
7313baad UW |
3432 | { |
3433 | warning (_("target file %s " | |
3434 | "contained unexpected null characters"), | |
3435 | filename); | |
3436 | break; | |
3437 | } | |
3438 | ||
39086a0e | 3439 | return bufstr; |
7313baad UW |
3440 | } |
3441 | ||
3442 | ||
e0d24f8d | 3443 | static int |
31568a15 TT |
3444 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3445 | CORE_ADDR addr, int len) | |
e0d24f8d | 3446 | { |
f5656ead | 3447 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3448 | } |
3449 | ||
5009afc5 AS |
3450 | static int |
3451 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3452 | CORE_ADDR addr, | |
3453 | CORE_ADDR start, int length) | |
3454 | { | |
3455 | return addr >= start && addr < start + length; | |
3456 | } | |
3457 | ||
c2250ad1 UW |
3458 | static struct gdbarch * |
3459 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3460 | { | |
f5656ead | 3461 | return target_gdbarch (); |
c2250ad1 UW |
3462 | } |
3463 | ||
c906108c | 3464 | static int |
fba45db2 | 3465 | return_zero (void) |
c906108c SS |
3466 | { |
3467 | return 0; | |
3468 | } | |
3469 | ||
ed9a39eb JM |
3470 | /* |
3471 | * Find the next target down the stack from the specified target. | |
3472 | */ | |
3473 | ||
3474 | struct target_ops * | |
fba45db2 | 3475 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3476 | { |
258b763a | 3477 | return t->beneath; |
ed9a39eb JM |
3478 | } |
3479 | ||
8b06beed TT |
3480 | /* See target.h. */ |
3481 | ||
3482 | struct target_ops * | |
3483 | find_target_at (enum strata stratum) | |
3484 | { | |
3485 | struct target_ops *t; | |
3486 | ||
3487 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3488 | if (t->to_stratum == stratum) | |
3489 | return t; | |
3490 | ||
3491 | return NULL; | |
3492 | } | |
3493 | ||
c906108c SS |
3494 | \f |
3495 | /* The inferior process has died. Long live the inferior! */ | |
3496 | ||
3497 | void | |
fba45db2 | 3498 | generic_mourn_inferior (void) |
c906108c | 3499 | { |
7f9f62ba | 3500 | ptid_t ptid; |
c906108c | 3501 | |
7f9f62ba | 3502 | ptid = inferior_ptid; |
39f77062 | 3503 | inferior_ptid = null_ptid; |
7f9f62ba | 3504 | |
f59f708a PA |
3505 | /* Mark breakpoints uninserted in case something tries to delete a |
3506 | breakpoint while we delete the inferior's threads (which would | |
3507 | fail, since the inferior is long gone). */ | |
3508 | mark_breakpoints_out (); | |
3509 | ||
7f9f62ba PA |
3510 | if (!ptid_equal (ptid, null_ptid)) |
3511 | { | |
3512 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3513 | exit_inferior (pid); |
7f9f62ba PA |
3514 | } |
3515 | ||
f59f708a PA |
3516 | /* Note this wipes step-resume breakpoints, so needs to be done |
3517 | after exit_inferior, which ends up referencing the step-resume | |
3518 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3519 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3520 | |
c906108c SS |
3521 | registers_changed (); |
3522 | ||
c906108c SS |
3523 | reopen_exec_file (); |
3524 | reinit_frame_cache (); | |
3525 | ||
9a4105ab AC |
3526 | if (deprecated_detach_hook) |
3527 | deprecated_detach_hook (); | |
c906108c SS |
3528 | } |
3529 | \f | |
fd0a2a6f MK |
3530 | /* Convert a normal process ID to a string. Returns the string in a |
3531 | static buffer. */ | |
c906108c SS |
3532 | |
3533 | char * | |
39f77062 | 3534 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3535 | { |
fd0a2a6f | 3536 | static char buf[32]; |
c906108c | 3537 | |
5fff8fc0 | 3538 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3539 | return buf; |
3540 | } | |
3541 | ||
2c0b251b | 3542 | static char * |
117de6a9 PA |
3543 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3544 | { | |
3545 | return normal_pid_to_str (ptid); | |
3546 | } | |
3547 | ||
9b4eba8e HZ |
3548 | /* Error-catcher for target_find_memory_regions. */ |
3549 | static int | |
2e73927c TT |
3550 | dummy_find_memory_regions (struct target_ops *self, |
3551 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3552 | { |
9b4eba8e | 3553 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3554 | return 0; |
3555 | } | |
3556 | ||
9b4eba8e HZ |
3557 | /* Error-catcher for target_make_corefile_notes. */ |
3558 | static char * | |
fc6691b2 TT |
3559 | dummy_make_corefile_notes (struct target_ops *self, |
3560 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3561 | { |
9b4eba8e | 3562 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3563 | return NULL; |
3564 | } | |
3565 | ||
c906108c SS |
3566 | /* Set up the handful of non-empty slots needed by the dummy target |
3567 | vector. */ | |
3568 | ||
3569 | static void | |
fba45db2 | 3570 | init_dummy_target (void) |
c906108c SS |
3571 | { |
3572 | dummy_target.to_shortname = "None"; | |
3573 | dummy_target.to_longname = "None"; | |
3574 | dummy_target.to_doc = ""; | |
c906108c | 3575 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3576 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3577 | dummy_target.to_supports_disable_randomization |
3578 | = find_default_supports_disable_randomization; | |
117de6a9 | 3579 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3580 | dummy_target.to_stratum = dummy_stratum; |
c35b1492 PA |
3581 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3582 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3583 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3584 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3585 | dummy_target.to_has_execution |
3586 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3587 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3588 | |
3589 | install_dummy_methods (&dummy_target); | |
c906108c | 3590 | } |
c906108c | 3591 | \f |
c906108c | 3592 | static void |
fba45db2 | 3593 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3594 | { |
3595 | debug_target.to_open (args, from_tty); | |
3596 | ||
96baa820 | 3597 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3598 | } |
3599 | ||
f1c07ab0 | 3600 | void |
460014f5 | 3601 | target_close (struct target_ops *targ) |
f1c07ab0 | 3602 | { |
7fdc1521 TT |
3603 | gdb_assert (!target_is_pushed (targ)); |
3604 | ||
f1c07ab0 | 3605 | if (targ->to_xclose != NULL) |
460014f5 | 3606 | targ->to_xclose (targ); |
f1c07ab0 | 3607 | else if (targ->to_close != NULL) |
de90e03d | 3608 | targ->to_close (targ); |
947b8855 PA |
3609 | |
3610 | if (targetdebug) | |
460014f5 | 3611 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3612 | } |
3613 | ||
136d6dae VP |
3614 | void |
3615 | target_attach (char *args, int from_tty) | |
3616 | { | |
e9a29200 TT |
3617 | current_target.to_attach (¤t_target, args, from_tty); |
3618 | if (targetdebug) | |
3619 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3620 | args, from_tty); | |
136d6dae VP |
3621 | } |
3622 | ||
28439f5e PA |
3623 | int |
3624 | target_thread_alive (ptid_t ptid) | |
c906108c | 3625 | { |
28439f5e | 3626 | struct target_ops *t; |
5d502164 | 3627 | |
28439f5e PA |
3628 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3629 | { | |
3630 | if (t->to_thread_alive != NULL) | |
3631 | { | |
3632 | int retval; | |
c906108c | 3633 | |
28439f5e PA |
3634 | retval = t->to_thread_alive (t, ptid); |
3635 | if (targetdebug) | |
3636 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3637 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3638 | |
3639 | return retval; | |
3640 | } | |
3641 | } | |
3642 | ||
3643 | return 0; | |
3644 | } | |
3645 | ||
3646 | void | |
3647 | target_find_new_threads (void) | |
3648 | { | |
3649 | struct target_ops *t; | |
5d502164 | 3650 | |
28439f5e PA |
3651 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3652 | { | |
3653 | if (t->to_find_new_threads != NULL) | |
3654 | { | |
3655 | t->to_find_new_threads (t); | |
3656 | if (targetdebug) | |
3657 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3658 | ||
3659 | return; | |
3660 | } | |
3661 | } | |
c906108c SS |
3662 | } |
3663 | ||
d914c394 SS |
3664 | void |
3665 | target_stop (ptid_t ptid) | |
3666 | { | |
3667 | if (!may_stop) | |
3668 | { | |
3669 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3670 | return; | |
3671 | } | |
3672 | ||
1eab8a48 | 3673 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3674 | } |
3675 | ||
c906108c | 3676 | static void |
f045800c | 3677 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3678 | { |
f045800c | 3679 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3680 | |
28439f5e | 3681 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3682 | } |
3683 | ||
09826ec5 PA |
3684 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3685 | result. The LIST incoming argument is released. */ | |
3686 | ||
3687 | static char * | |
3688 | str_comma_list_concat_elem (char *list, const char *elem) | |
3689 | { | |
3690 | if (list == NULL) | |
3691 | return xstrdup (elem); | |
3692 | else | |
3693 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3694 | } | |
3695 | ||
3696 | /* Helper for target_options_to_string. If OPT is present in | |
3697 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3698 | Returns the new resulting string. OPT is removed from | |
3699 | TARGET_OPTIONS. */ | |
3700 | ||
3701 | static char * | |
3702 | do_option (int *target_options, char *ret, | |
3703 | int opt, char *opt_str) | |
3704 | { | |
3705 | if ((*target_options & opt) != 0) | |
3706 | { | |
3707 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3708 | *target_options &= ~opt; | |
3709 | } | |
3710 | ||
3711 | return ret; | |
3712 | } | |
3713 | ||
3714 | char * | |
3715 | target_options_to_string (int target_options) | |
3716 | { | |
3717 | char *ret = NULL; | |
3718 | ||
3719 | #define DO_TARG_OPTION(OPT) \ | |
3720 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3721 | ||
3722 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3723 | ||
3724 | if (target_options != 0) | |
3725 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3726 | ||
3727 | if (ret == NULL) | |
3728 | ret = xstrdup (""); | |
3729 | return ret; | |
3730 | } | |
3731 | ||
bf0c5130 | 3732 | static void |
56be3814 UW |
3733 | debug_print_register (const char * func, |
3734 | struct regcache *regcache, int regno) | |
bf0c5130 | 3735 | { |
f8d29908 | 3736 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3737 | |
bf0c5130 | 3738 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3739 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3740 | && gdbarch_register_name (gdbarch, regno) != NULL |
3741 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3742 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3743 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3744 | else |
3745 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3746 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3747 | { |
e17a4113 | 3748 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3749 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3750 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3751 | |
0ff58721 | 3752 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3753 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3754 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3755 | { |
3756 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3757 | } | |
81c4a259 | 3758 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3759 | { |
e17a4113 | 3760 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3761 | |
0b1553bc UW |
3762 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3763 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3764 | } |
3765 | } | |
3766 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3767 | } | |
3768 | ||
28439f5e PA |
3769 | void |
3770 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3771 | { |
28439f5e | 3772 | struct target_ops *t; |
5d502164 | 3773 | |
28439f5e PA |
3774 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3775 | { | |
3776 | if (t->to_fetch_registers != NULL) | |
3777 | { | |
3778 | t->to_fetch_registers (t, regcache, regno); | |
3779 | if (targetdebug) | |
3780 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3781 | return; | |
3782 | } | |
3783 | } | |
c906108c SS |
3784 | } |
3785 | ||
28439f5e PA |
3786 | void |
3787 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3788 | { |
28439f5e | 3789 | struct target_ops *t; |
5d502164 | 3790 | |
d914c394 SS |
3791 | if (!may_write_registers) |
3792 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3793 | ||
6b84065d TT |
3794 | current_target.to_store_registers (¤t_target, regcache, regno); |
3795 | if (targetdebug) | |
28439f5e | 3796 | { |
6b84065d | 3797 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3798 | } |
c906108c SS |
3799 | } |
3800 | ||
dc146f7c VP |
3801 | int |
3802 | target_core_of_thread (ptid_t ptid) | |
3803 | { | |
3804 | struct target_ops *t; | |
3805 | ||
3806 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3807 | { | |
3808 | if (t->to_core_of_thread != NULL) | |
3809 | { | |
3810 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 3811 | |
dc146f7c | 3812 | if (targetdebug) |
3e43a32a MS |
3813 | fprintf_unfiltered (gdb_stdlog, |
3814 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 3815 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
3816 | return retval; |
3817 | } | |
3818 | } | |
3819 | ||
3820 | return -1; | |
3821 | } | |
3822 | ||
4a5e7a5b PA |
3823 | int |
3824 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3825 | { | |
3826 | struct target_ops *t; | |
3827 | ||
3828 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3829 | { | |
3830 | if (t->to_verify_memory != NULL) | |
3831 | { | |
3832 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 3833 | |
4a5e7a5b | 3834 | if (targetdebug) |
3e43a32a MS |
3835 | fprintf_unfiltered (gdb_stdlog, |
3836 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 3837 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
3838 | pulongest (size), |
3839 | retval); | |
3840 | return retval; | |
3841 | } | |
3842 | } | |
3843 | ||
3844 | tcomplain (); | |
3845 | } | |
3846 | ||
9c06b0b4 TJB |
3847 | /* The documentation for this function is in its prototype declaration in |
3848 | target.h. */ | |
3849 | ||
3850 | int | |
3851 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3852 | { | |
3853 | struct target_ops *t; | |
3854 | ||
3855 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3856 | if (t->to_insert_mask_watchpoint != NULL) | |
3857 | { | |
3858 | int ret; | |
3859 | ||
3860 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
3861 | ||
3862 | if (targetdebug) | |
3863 | fprintf_unfiltered (gdb_stdlog, "\ | |
3864 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
3865 | core_addr_to_string (addr), | |
3866 | core_addr_to_string (mask), rw, ret); | |
3867 | ||
3868 | return ret; | |
3869 | } | |
3870 | ||
3871 | return 1; | |
3872 | } | |
3873 | ||
3874 | /* The documentation for this function is in its prototype declaration in | |
3875 | target.h. */ | |
3876 | ||
3877 | int | |
3878 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3879 | { | |
3880 | struct target_ops *t; | |
3881 | ||
3882 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3883 | if (t->to_remove_mask_watchpoint != NULL) | |
3884 | { | |
3885 | int ret; | |
3886 | ||
3887 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
3888 | ||
3889 | if (targetdebug) | |
3890 | fprintf_unfiltered (gdb_stdlog, "\ | |
3891 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
3892 | core_addr_to_string (addr), | |
3893 | core_addr_to_string (mask), rw, ret); | |
3894 | ||
3895 | return ret; | |
3896 | } | |
3897 | ||
3898 | return 1; | |
3899 | } | |
3900 | ||
3901 | /* The documentation for this function is in its prototype declaration | |
3902 | in target.h. */ | |
3903 | ||
3904 | int | |
3905 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3906 | { | |
3907 | struct target_ops *t; | |
3908 | ||
3909 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3910 | if (t->to_masked_watch_num_registers != NULL) | |
3911 | return t->to_masked_watch_num_registers (t, addr, mask); | |
3912 | ||
3913 | return -1; | |
3914 | } | |
3915 | ||
f1310107 TJB |
3916 | /* The documentation for this function is in its prototype declaration |
3917 | in target.h. */ | |
3918 | ||
3919 | int | |
3920 | target_ranged_break_num_registers (void) | |
3921 | { | |
3922 | struct target_ops *t; | |
3923 | ||
3924 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3925 | if (t->to_ranged_break_num_registers != NULL) | |
3926 | return t->to_ranged_break_num_registers (t); | |
3927 | ||
3928 | return -1; | |
3929 | } | |
3930 | ||
02d27625 MM |
3931 | /* See target.h. */ |
3932 | ||
02d27625 MM |
3933 | struct btrace_target_info * |
3934 | target_enable_btrace (ptid_t ptid) | |
3935 | { | |
3936 | struct target_ops *t; | |
3937 | ||
3938 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3939 | if (t->to_enable_btrace != NULL) | |
e3c49f88 | 3940 | return t->to_enable_btrace (t, ptid); |
02d27625 MM |
3941 | |
3942 | tcomplain (); | |
3943 | return NULL; | |
3944 | } | |
3945 | ||
3946 | /* See target.h. */ | |
3947 | ||
3948 | void | |
3949 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3950 | { | |
3951 | struct target_ops *t; | |
3952 | ||
3953 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3954 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 | 3955 | { |
25e95349 | 3956 | t->to_disable_btrace (t, btinfo); |
d92f7ee3 SDJ |
3957 | return; |
3958 | } | |
02d27625 MM |
3959 | |
3960 | tcomplain (); | |
3961 | } | |
3962 | ||
3963 | /* See target.h. */ | |
3964 | ||
3965 | void | |
3966 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
3967 | { | |
3968 | struct target_ops *t; | |
3969 | ||
3970 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3971 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 | 3972 | { |
1777056d | 3973 | t->to_teardown_btrace (t, btinfo); |
d92f7ee3 SDJ |
3974 | return; |
3975 | } | |
02d27625 MM |
3976 | |
3977 | tcomplain (); | |
3978 | } | |
3979 | ||
3980 | /* See target.h. */ | |
3981 | ||
969c39fb MM |
3982 | enum btrace_error |
3983 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
3984 | struct btrace_target_info *btinfo, | |
02d27625 MM |
3985 | enum btrace_read_type type) |
3986 | { | |
3987 | struct target_ops *t; | |
3988 | ||
3989 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3990 | if (t->to_read_btrace != NULL) | |
39c49f83 | 3991 | return t->to_read_btrace (t, btrace, btinfo, type); |
02d27625 MM |
3992 | |
3993 | tcomplain (); | |
969c39fb | 3994 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
3995 | } |
3996 | ||
d02ed0bb MM |
3997 | /* See target.h. */ |
3998 | ||
7c1687a9 MM |
3999 | void |
4000 | target_stop_recording (void) | |
4001 | { | |
4002 | struct target_ops *t; | |
4003 | ||
4004 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4005 | if (t->to_stop_recording != NULL) | |
4006 | { | |
c6cd7c02 | 4007 | t->to_stop_recording (t); |
7c1687a9 MM |
4008 | return; |
4009 | } | |
4010 | ||
4011 | /* This is optional. */ | |
4012 | } | |
4013 | ||
4014 | /* See target.h. */ | |
4015 | ||
d02ed0bb MM |
4016 | void |
4017 | target_info_record (void) | |
4018 | { | |
4019 | struct target_ops *t; | |
4020 | ||
4021 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4022 | if (t->to_info_record != NULL) | |
4023 | { | |
630d6a4a | 4024 | t->to_info_record (t); |
d02ed0bb MM |
4025 | return; |
4026 | } | |
4027 | ||
4028 | tcomplain (); | |
4029 | } | |
4030 | ||
4031 | /* See target.h. */ | |
4032 | ||
4033 | void | |
85e1311a | 4034 | target_save_record (const char *filename) |
d02ed0bb MM |
4035 | { |
4036 | struct target_ops *t; | |
4037 | ||
4038 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4039 | if (t->to_save_record != NULL) | |
4040 | { | |
1390f529 | 4041 | t->to_save_record (t, filename); |
d02ed0bb MM |
4042 | return; |
4043 | } | |
4044 | ||
4045 | tcomplain (); | |
4046 | } | |
4047 | ||
4048 | /* See target.h. */ | |
4049 | ||
4050 | int | |
4051 | target_supports_delete_record (void) | |
4052 | { | |
4053 | struct target_ops *t; | |
4054 | ||
4055 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4056 | if (t->to_delete_record != NULL) | |
4057 | return 1; | |
4058 | ||
4059 | return 0; | |
4060 | } | |
4061 | ||
4062 | /* See target.h. */ | |
4063 | ||
4064 | void | |
4065 | target_delete_record (void) | |
4066 | { | |
4067 | struct target_ops *t; | |
4068 | ||
4069 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4070 | if (t->to_delete_record != NULL) | |
4071 | { | |
d1b55219 | 4072 | t->to_delete_record (t); |
d02ed0bb MM |
4073 | return; |
4074 | } | |
4075 | ||
4076 | tcomplain (); | |
4077 | } | |
4078 | ||
4079 | /* See target.h. */ | |
4080 | ||
4081 | int | |
4082 | target_record_is_replaying (void) | |
4083 | { | |
4084 | struct target_ops *t; | |
4085 | ||
4086 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4087 | if (t->to_record_is_replaying != NULL) | |
1c63c994 | 4088 | return t->to_record_is_replaying (t); |
d02ed0bb MM |
4089 | |
4090 | return 0; | |
4091 | } | |
4092 | ||
4093 | /* See target.h. */ | |
4094 | ||
4095 | void | |
4096 | target_goto_record_begin (void) | |
4097 | { | |
4098 | struct target_ops *t; | |
4099 | ||
4100 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4101 | if (t->to_goto_record_begin != NULL) | |
4102 | { | |
08475817 | 4103 | t->to_goto_record_begin (t); |
d02ed0bb MM |
4104 | return; |
4105 | } | |
4106 | ||
4107 | tcomplain (); | |
4108 | } | |
4109 | ||
4110 | /* See target.h. */ | |
4111 | ||
4112 | void | |
4113 | target_goto_record_end (void) | |
4114 | { | |
4115 | struct target_ops *t; | |
4116 | ||
4117 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4118 | if (t->to_goto_record_end != NULL) | |
4119 | { | |
307a1b91 | 4120 | t->to_goto_record_end (t); |
d02ed0bb MM |
4121 | return; |
4122 | } | |
4123 | ||
4124 | tcomplain (); | |
4125 | } | |
4126 | ||
4127 | /* See target.h. */ | |
4128 | ||
4129 | void | |
4130 | target_goto_record (ULONGEST insn) | |
4131 | { | |
4132 | struct target_ops *t; | |
4133 | ||
4134 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4135 | if (t->to_goto_record != NULL) | |
4136 | { | |
606183ac | 4137 | t->to_goto_record (t, insn); |
d02ed0bb MM |
4138 | return; |
4139 | } | |
4140 | ||
4141 | tcomplain (); | |
4142 | } | |
4143 | ||
67c86d06 MM |
4144 | /* See target.h. */ |
4145 | ||
4146 | void | |
4147 | target_insn_history (int size, int flags) | |
4148 | { | |
4149 | struct target_ops *t; | |
4150 | ||
4151 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4152 | if (t->to_insn_history != NULL) | |
4153 | { | |
7a6c5609 | 4154 | t->to_insn_history (t, size, flags); |
67c86d06 MM |
4155 | return; |
4156 | } | |
4157 | ||
4158 | tcomplain (); | |
4159 | } | |
4160 | ||
4161 | /* See target.h. */ | |
4162 | ||
4163 | void | |
4164 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4165 | { | |
4166 | struct target_ops *t; | |
4167 | ||
4168 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4169 | if (t->to_insn_history_from != NULL) | |
4170 | { | |
9abc3ff3 | 4171 | t->to_insn_history_from (t, from, size, flags); |
67c86d06 MM |
4172 | return; |
4173 | } | |
4174 | ||
4175 | tcomplain (); | |
4176 | } | |
4177 | ||
4178 | /* See target.h. */ | |
4179 | ||
4180 | void | |
4181 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4182 | { | |
4183 | struct target_ops *t; | |
4184 | ||
4185 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4186 | if (t->to_insn_history_range != NULL) | |
4187 | { | |
4e99c6b7 | 4188 | t->to_insn_history_range (t, begin, end, flags); |
67c86d06 MM |
4189 | return; |
4190 | } | |
4191 | ||
4192 | tcomplain (); | |
4193 | } | |
4194 | ||
15984c13 MM |
4195 | /* See target.h. */ |
4196 | ||
4197 | void | |
4198 | target_call_history (int size, int flags) | |
4199 | { | |
4200 | struct target_ops *t; | |
4201 | ||
4202 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4203 | if (t->to_call_history != NULL) | |
4204 | { | |
5df2fcba | 4205 | t->to_call_history (t, size, flags); |
15984c13 MM |
4206 | return; |
4207 | } | |
4208 | ||
4209 | tcomplain (); | |
4210 | } | |
4211 | ||
4212 | /* See target.h. */ | |
4213 | ||
4214 | void | |
4215 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4216 | { | |
4217 | struct target_ops *t; | |
4218 | ||
4219 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4220 | if (t->to_call_history_from != NULL) | |
4221 | { | |
ec0aea04 | 4222 | t->to_call_history_from (t, begin, size, flags); |
15984c13 MM |
4223 | return; |
4224 | } | |
4225 | ||
4226 | tcomplain (); | |
4227 | } | |
4228 | ||
4229 | /* See target.h. */ | |
4230 | ||
4231 | void | |
4232 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4233 | { | |
4234 | struct target_ops *t; | |
4235 | ||
4236 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4237 | if (t->to_call_history_range != NULL) | |
4238 | { | |
f0d960ea | 4239 | t->to_call_history_range (t, begin, end, flags); |
15984c13 MM |
4240 | return; |
4241 | } | |
4242 | ||
4243 | tcomplain (); | |
4244 | } | |
4245 | ||
c906108c | 4246 | static void |
f32dbf8c | 4247 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4248 | { |
f32dbf8c | 4249 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4250 | |
96baa820 | 4251 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4252 | } |
4253 | ||
ea001bdc MM |
4254 | /* See target.h. */ |
4255 | ||
4256 | const struct frame_unwind * | |
4257 | target_get_unwinder (void) | |
4258 | { | |
4259 | struct target_ops *t; | |
4260 | ||
4261 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4262 | if (t->to_get_unwinder != NULL) | |
4263 | return t->to_get_unwinder; | |
4264 | ||
4265 | return NULL; | |
4266 | } | |
4267 | ||
4268 | /* See target.h. */ | |
4269 | ||
4270 | const struct frame_unwind * | |
4271 | target_get_tailcall_unwinder (void) | |
4272 | { | |
4273 | struct target_ops *t; | |
4274 | ||
4275 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4276 | if (t->to_get_tailcall_unwinder != NULL) | |
4277 | return t->to_get_tailcall_unwinder; | |
4278 | ||
4279 | return NULL; | |
4280 | } | |
4281 | ||
118e6252 MM |
4282 | /* See target.h. */ |
4283 | ||
4284 | CORE_ADDR | |
4285 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4286 | struct gdbarch *gdbarch) | |
4287 | { | |
4288 | for (; ops != NULL; ops = ops->beneath) | |
4289 | if (ops->to_decr_pc_after_break != NULL) | |
4290 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4291 | ||
4292 | return gdbarch_decr_pc_after_break (gdbarch); | |
4293 | } | |
4294 | ||
4295 | /* See target.h. */ | |
4296 | ||
4297 | CORE_ADDR | |
4298 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4299 | { | |
4300 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4301 | } | |
4302 | ||
c906108c | 4303 | static int |
961cb7b5 | 4304 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4305 | int write, struct mem_attrib *attrib, |
4306 | struct target_ops *target) | |
c906108c SS |
4307 | { |
4308 | int retval; | |
4309 | ||
c8e73a31 AC |
4310 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4311 | attrib, target); | |
c906108c | 4312 | |
96baa820 | 4313 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4314 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4315 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4316 | write ? "write" : "read", retval); |
c906108c | 4317 | |
c906108c SS |
4318 | if (retval > 0) |
4319 | { | |
4320 | int i; | |
4321 | ||
96baa820 | 4322 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4323 | for (i = 0; i < retval; i++) |
4324 | { | |
53b71562 | 4325 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4326 | { |
4327 | if (targetdebug < 2 && i > 0) | |
4328 | { | |
4329 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4330 | break; | |
4331 | } | |
4332 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4333 | } | |
2bc416ba | 4334 | |
96baa820 | 4335 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4336 | } |
4337 | } | |
4338 | ||
96baa820 | 4339 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4340 | |
4341 | return retval; | |
4342 | } | |
4343 | ||
4344 | static void | |
fba45db2 | 4345 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4346 | { |
4347 | debug_target.to_files_info (target); | |
4348 | ||
96baa820 | 4349 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4350 | } |
4351 | ||
4352 | static int | |
3db08215 | 4353 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4354 | struct bp_target_info *bp_tgt) |
c906108c SS |
4355 | { |
4356 | int retval; | |
4357 | ||
6b84065d | 4358 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4359 | |
96baa820 | 4360 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4361 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4362 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4363 | (unsigned long) retval); |
c906108c SS |
4364 | return retval; |
4365 | } | |
4366 | ||
4367 | static int | |
3db08215 | 4368 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4369 | struct bp_target_info *bp_tgt) |
c906108c SS |
4370 | { |
4371 | int retval; | |
4372 | ||
6b84065d | 4373 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4374 | |
96baa820 | 4375 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4376 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4377 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4378 | (unsigned long) retval); |
c906108c SS |
4379 | return retval; |
4380 | } | |
4381 | ||
ccaa32c7 | 4382 | static int |
5461485a TT |
4383 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4384 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4385 | { |
4386 | int retval; | |
4387 | ||
5461485a TT |
4388 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4389 | type, cnt, from_tty); | |
ccaa32c7 GS |
4390 | |
4391 | fprintf_unfiltered (gdb_stdlog, | |
4392 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4393 | (unsigned long) type, | |
4394 | (unsigned long) cnt, | |
4395 | (unsigned long) from_tty, | |
4396 | (unsigned long) retval); | |
4397 | return retval; | |
4398 | } | |
4399 | ||
e0d24f8d | 4400 | static int |
31568a15 TT |
4401 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4402 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4403 | { |
4404 | CORE_ADDR retval; | |
4405 | ||
31568a15 TT |
4406 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4407 | addr, len); | |
e0d24f8d WZ |
4408 | |
4409 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4410 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4411 | core_addr_to_string (addr), (unsigned long) len, | |
4412 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4413 | return retval; |
4414 | } | |
4415 | ||
0cf6dd15 | 4416 | static int |
c3a5ff89 TT |
4417 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4418 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4419 | struct expression *cond) |
4420 | { | |
4421 | int retval; | |
4422 | ||
c3a5ff89 TT |
4423 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4424 | addr, len, | |
3e43a32a | 4425 | rw, cond); |
0cf6dd15 TJB |
4426 | |
4427 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4428 | "target_can_accel_watchpoint_condition " |
4429 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4430 | core_addr_to_string (addr), len, rw, |
4431 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4432 | return retval; |
4433 | } | |
4434 | ||
ccaa32c7 | 4435 | static int |
6a109b6b | 4436 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4437 | { |
4438 | int retval; | |
4439 | ||
6a109b6b | 4440 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4441 | |
4442 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4443 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4444 | (unsigned long) retval); |
4445 | return retval; | |
4446 | } | |
4447 | ||
4aa7a7f5 JJ |
4448 | static int |
4449 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4450 | { |
4aa7a7f5 | 4451 | int retval; |
ccaa32c7 | 4452 | |
4aa7a7f5 | 4453 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4454 | |
4455 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4456 | "target_stopped_data_address ([%s]) = %ld\n", |
4457 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4458 | (unsigned long)retval); |
ccaa32c7 GS |
4459 | return retval; |
4460 | } | |
4461 | ||
5009afc5 AS |
4462 | static int |
4463 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4464 | CORE_ADDR addr, | |
4465 | CORE_ADDR start, int length) | |
4466 | { | |
4467 | int retval; | |
4468 | ||
4469 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4470 | start, length); | |
4471 | ||
4472 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4473 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4474 | core_addr_to_string (addr), core_addr_to_string (start), | |
4475 | length, retval); | |
5009afc5 AS |
4476 | return retval; |
4477 | } | |
4478 | ||
ccaa32c7 | 4479 | static int |
23a26771 TT |
4480 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4481 | struct gdbarch *gdbarch, | |
a6d9a66e | 4482 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4483 | { |
4484 | int retval; | |
4485 | ||
23a26771 TT |
4486 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4487 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4488 | |
4489 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4490 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4491 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4492 | (unsigned long) retval); |
4493 | return retval; | |
4494 | } | |
4495 | ||
4496 | static int | |
a64dc96c TT |
4497 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4498 | struct gdbarch *gdbarch, | |
a6d9a66e | 4499 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4500 | { |
4501 | int retval; | |
4502 | ||
a64dc96c TT |
4503 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4504 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4505 | |
4506 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4507 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4508 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4509 | (unsigned long) retval); |
4510 | return retval; | |
4511 | } | |
4512 | ||
4513 | static int | |
7bb99c53 TT |
4514 | debug_to_insert_watchpoint (struct target_ops *self, |
4515 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4516 | struct expression *cond) |
ccaa32c7 GS |
4517 | { |
4518 | int retval; | |
4519 | ||
7bb99c53 TT |
4520 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4521 | addr, len, type, cond); | |
ccaa32c7 GS |
4522 | |
4523 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4524 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4525 | core_addr_to_string (addr), len, type, | |
4526 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4527 | return retval; |
4528 | } | |
4529 | ||
4530 | static int | |
11b5219a TT |
4531 | debug_to_remove_watchpoint (struct target_ops *self, |
4532 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4533 | struct expression *cond) |
ccaa32c7 GS |
4534 | { |
4535 | int retval; | |
4536 | ||
11b5219a TT |
4537 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4538 | addr, len, type, cond); | |
ccaa32c7 GS |
4539 | |
4540 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4541 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4542 | core_addr_to_string (addr), len, type, | |
4543 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4544 | return retval; |
4545 | } | |
4546 | ||
c906108c | 4547 | static void |
c42bf286 | 4548 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4549 | { |
c42bf286 | 4550 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4551 | |
96baa820 | 4552 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4553 | } |
4554 | ||
4555 | static void | |
d2f640d4 | 4556 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4557 | { |
d2f640d4 | 4558 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4559 | |
96baa820 | 4560 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4561 | } |
4562 | ||
4563 | static void | |
2e1e1a19 | 4564 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4565 | { |
2e1e1a19 | 4566 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4567 | |
96baa820 | 4568 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4569 | } |
4570 | ||
4571 | static void | |
e3594fd1 | 4572 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4573 | { |
e3594fd1 | 4574 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4575 | |
96baa820 | 4576 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4577 | } |
4578 | ||
a790ad35 | 4579 | static void |
ae3bd431 | 4580 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4581 | { |
ae3bd431 | 4582 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4583 | |
4584 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4585 | } | |
4586 | ||
c906108c | 4587 | static void |
0a4f40a2 TT |
4588 | debug_to_terminal_info (struct target_ops *self, |
4589 | const char *arg, int from_tty) | |
c906108c | 4590 | { |
0a4f40a2 | 4591 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4592 | |
96baa820 | 4593 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4594 | from_tty); |
4595 | } | |
4596 | ||
c906108c | 4597 | static void |
71a9f134 | 4598 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4599 | { |
71a9f134 | 4600 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4601 | |
96baa820 | 4602 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4603 | } |
4604 | ||
c906108c | 4605 | static void |
2e97a79e | 4606 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4607 | { |
2e97a79e | 4608 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4609 | |
96baa820 | 4610 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4611 | ptid_get_pid (ptid)); |
c906108c SS |
4612 | } |
4613 | ||
77b06cd7 | 4614 | static int |
a863b201 | 4615 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4616 | { |
77b06cd7 TJB |
4617 | int retval; |
4618 | ||
a863b201 | 4619 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4620 | |
4621 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4622 | pid, retval); | |
c906108c | 4623 | |
77b06cd7 | 4624 | return retval; |
c906108c SS |
4625 | } |
4626 | ||
4627 | static int | |
973fc227 | 4628 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4629 | { |
c5aa993b | 4630 | int retval; |
c906108c | 4631 | |
973fc227 | 4632 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4633 | |
96baa820 | 4634 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4635 | pid, retval); |
c906108c SS |
4636 | |
4637 | return retval; | |
4638 | } | |
4639 | ||
77b06cd7 | 4640 | static int |
3ecc7da0 | 4641 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4642 | { |
77b06cd7 TJB |
4643 | int retval; |
4644 | ||
3ecc7da0 | 4645 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4646 | |
77b06cd7 TJB |
4647 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4648 | pid, retval); | |
4649 | ||
4650 | return retval; | |
c906108c SS |
4651 | } |
4652 | ||
4653 | static int | |
e98cf0cd | 4654 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4655 | { |
c5aa993b | 4656 | int retval; |
c906108c | 4657 | |
e98cf0cd | 4658 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4659 | |
96baa820 | 4660 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4661 | pid, retval); |
c906108c SS |
4662 | |
4663 | return retval; | |
4664 | } | |
4665 | ||
77b06cd7 | 4666 | static int |
ba025e51 | 4667 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4668 | { |
77b06cd7 TJB |
4669 | int retval; |
4670 | ||
ba025e51 | 4671 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4672 | |
77b06cd7 TJB |
4673 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4674 | pid, retval); | |
4675 | ||
4676 | return retval; | |
c906108c SS |
4677 | } |
4678 | ||
4679 | static int | |
758e29d2 | 4680 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4681 | { |
c5aa993b | 4682 | int retval; |
c906108c | 4683 | |
758e29d2 | 4684 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4685 | |
96baa820 | 4686 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4687 | pid, retval); |
c906108c SS |
4688 | |
4689 | return retval; | |
4690 | } | |
4691 | ||
c906108c | 4692 | static int |
d796e1d6 TT |
4693 | debug_to_has_exited (struct target_ops *self, |
4694 | int pid, int wait_status, int *exit_status) | |
c906108c | 4695 | { |
c5aa993b | 4696 | int has_exited; |
c906108c | 4697 | |
d796e1d6 TT |
4698 | has_exited = debug_target.to_has_exited (&debug_target, |
4699 | pid, wait_status, exit_status); | |
c906108c | 4700 | |
96baa820 | 4701 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4702 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4703 | |
4704 | return has_exited; | |
4705 | } | |
4706 | ||
c906108c | 4707 | static int |
da82bd6b | 4708 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4709 | { |
4710 | int retval; | |
4711 | ||
da82bd6b | 4712 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4713 | |
96baa820 | 4714 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4715 | |
4716 | return retval; | |
4717 | } | |
4718 | ||
c2250ad1 UW |
4719 | static struct gdbarch * |
4720 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4721 | { | |
4722 | struct gdbarch *retval; | |
4723 | ||
4724 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4725 | ||
3e43a32a MS |
4726 | fprintf_unfiltered (gdb_stdlog, |
4727 | "target_thread_architecture (%s) = %s [%s]\n", | |
4728 | target_pid_to_str (ptid), | |
4729 | host_address_to_string (retval), | |
c2250ad1 UW |
4730 | gdbarch_bfd_arch_info (retval)->printable_name); |
4731 | return retval; | |
4732 | } | |
4733 | ||
c906108c | 4734 | static void |
1eab8a48 | 4735 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4736 | { |
1eab8a48 | 4737 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4738 | |
94cc34af PA |
4739 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4740 | target_pid_to_str (ptid)); | |
c906108c SS |
4741 | } |
4742 | ||
96baa820 | 4743 | static void |
1aac633b | 4744 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4745 | struct ui_file *outbuf) |
96baa820 | 4746 | { |
1aac633b | 4747 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4748 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4749 | } | |
4750 | ||
c906108c | 4751 | static char * |
8dd27370 | 4752 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4753 | { |
c5aa993b | 4754 | char *exec_file; |
c906108c | 4755 | |
8dd27370 | 4756 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4757 | |
96baa820 | 4758 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4759 | pid, exec_file); |
c906108c SS |
4760 | |
4761 | return exec_file; | |
4762 | } | |
4763 | ||
c906108c | 4764 | static void |
fba45db2 | 4765 | setup_target_debug (void) |
c906108c SS |
4766 | { |
4767 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4768 | ||
4769 | current_target.to_open = debug_to_open; | |
c906108c | 4770 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4771 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4772 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4773 | current_target.to_files_info = debug_to_files_info; |
4774 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4775 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4776 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4777 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4778 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4779 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4780 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4781 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4782 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4783 | current_target.to_watchpoint_addr_within_range |
4784 | = debug_to_watchpoint_addr_within_range; | |
4785 | current_target.to_region_ok_for_hw_watchpoint | |
4786 | = debug_to_region_ok_for_hw_watchpoint; | |
4787 | current_target.to_can_accel_watchpoint_condition | |
4788 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4789 | current_target.to_terminal_init = debug_to_terminal_init; |
4790 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4791 | current_target.to_terminal_ours_for_output |
4792 | = debug_to_terminal_ours_for_output; | |
c906108c | 4793 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4794 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4795 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4796 | current_target.to_load = debug_to_load; |
c906108c | 4797 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4798 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4799 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4800 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4801 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4802 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4803 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4804 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4805 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4806 | current_target.to_stop = debug_to_stop; |
96baa820 | 4807 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4808 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4809 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4810 | } |
c906108c | 4811 | \f |
c5aa993b JM |
4812 | |
4813 | static char targ_desc[] = | |
3e43a32a MS |
4814 | "Names of targets and files being debugged.\nShows the entire \ |
4815 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4816 | core-file, and process, if any), as well as the symbol file name."; |
4817 | ||
a53f3625 TT |
4818 | static void |
4819 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4820 | { | |
4821 | error (_("\"monitor\" command not supported by this target.")); | |
4822 | } | |
4823 | ||
96baa820 JM |
4824 | static void |
4825 | do_monitor_command (char *cmd, | |
4826 | int from_tty) | |
4827 | { | |
96baa820 JM |
4828 | target_rcmd (cmd, gdb_stdtarg); |
4829 | } | |
4830 | ||
87680a14 JB |
4831 | /* Print the name of each layers of our target stack. */ |
4832 | ||
4833 | static void | |
4834 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4835 | { | |
4836 | struct target_ops *t; | |
4837 | ||
4838 | printf_filtered (_("The current target stack is:\n")); | |
4839 | ||
4840 | for (t = target_stack; t != NULL; t = t->beneath) | |
4841 | { | |
4842 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4843 | } | |
4844 | } | |
4845 | ||
c6ebd6cf VP |
4846 | /* Controls if async mode is permitted. */ |
4847 | int target_async_permitted = 0; | |
4848 | ||
4849 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4850 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4851 | static int target_async_permitted_1 = 0; |
4852 | ||
4853 | static void | |
9401a810 PA |
4854 | set_target_async_command (char *args, int from_tty, |
4855 | struct cmd_list_element *c) | |
c6ebd6cf | 4856 | { |
c35b1492 | 4857 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4858 | { |
4859 | target_async_permitted_1 = target_async_permitted; | |
4860 | error (_("Cannot change this setting while the inferior is running.")); | |
4861 | } | |
4862 | ||
4863 | target_async_permitted = target_async_permitted_1; | |
4864 | } | |
4865 | ||
4866 | static void | |
9401a810 PA |
4867 | show_target_async_command (struct ui_file *file, int from_tty, |
4868 | struct cmd_list_element *c, | |
4869 | const char *value) | |
c6ebd6cf | 4870 | { |
3e43a32a MS |
4871 | fprintf_filtered (file, |
4872 | _("Controlling the inferior in " | |
4873 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4874 | } |
4875 | ||
d914c394 SS |
4876 | /* Temporary copies of permission settings. */ |
4877 | ||
4878 | static int may_write_registers_1 = 1; | |
4879 | static int may_write_memory_1 = 1; | |
4880 | static int may_insert_breakpoints_1 = 1; | |
4881 | static int may_insert_tracepoints_1 = 1; | |
4882 | static int may_insert_fast_tracepoints_1 = 1; | |
4883 | static int may_stop_1 = 1; | |
4884 | ||
4885 | /* Make the user-set values match the real values again. */ | |
4886 | ||
4887 | void | |
4888 | update_target_permissions (void) | |
4889 | { | |
4890 | may_write_registers_1 = may_write_registers; | |
4891 | may_write_memory_1 = may_write_memory; | |
4892 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4893 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4894 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4895 | may_stop_1 = may_stop; | |
4896 | } | |
4897 | ||
4898 | /* The one function handles (most of) the permission flags in the same | |
4899 | way. */ | |
4900 | ||
4901 | static void | |
4902 | set_target_permissions (char *args, int from_tty, | |
4903 | struct cmd_list_element *c) | |
4904 | { | |
4905 | if (target_has_execution) | |
4906 | { | |
4907 | update_target_permissions (); | |
4908 | error (_("Cannot change this setting while the inferior is running.")); | |
4909 | } | |
4910 | ||
4911 | /* Make the real values match the user-changed values. */ | |
4912 | may_write_registers = may_write_registers_1; | |
4913 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4914 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4915 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4916 | may_stop = may_stop_1; | |
4917 | update_observer_mode (); | |
4918 | } | |
4919 | ||
4920 | /* Set memory write permission independently of observer mode. */ | |
4921 | ||
4922 | static void | |
4923 | set_write_memory_permission (char *args, int from_tty, | |
4924 | struct cmd_list_element *c) | |
4925 | { | |
4926 | /* Make the real values match the user-changed values. */ | |
4927 | may_write_memory = may_write_memory_1; | |
4928 | update_observer_mode (); | |
4929 | } | |
4930 | ||
4931 | ||
c906108c | 4932 | void |
fba45db2 | 4933 | initialize_targets (void) |
c906108c SS |
4934 | { |
4935 | init_dummy_target (); | |
4936 | push_target (&dummy_target); | |
4937 | ||
4938 | add_info ("target", target_info, targ_desc); | |
4939 | add_info ("files", target_info, targ_desc); | |
4940 | ||
ccce17b0 | 4941 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4942 | Set target debugging."), _("\ |
4943 | Show target debugging."), _("\ | |
333dabeb DJ |
4944 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4945 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4946 | command."), |
ccce17b0 YQ |
4947 | NULL, |
4948 | show_targetdebug, | |
4949 | &setdebuglist, &showdebuglist); | |
3a11626d | 4950 | |
2bc416ba | 4951 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4952 | &trust_readonly, _("\ |
4953 | Set mode for reading from readonly sections."), _("\ | |
4954 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4955 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4956 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4957 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4958 | NULL, |
920d2a44 | 4959 | show_trust_readonly, |
e707bbc2 | 4960 | &setlist, &showlist); |
96baa820 JM |
4961 | |
4962 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4963 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4964 | |
87680a14 JB |
4965 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4966 | _("Print the name of each layer of the internal target stack."), | |
4967 | &maintenanceprintlist); | |
4968 | ||
c6ebd6cf VP |
4969 | add_setshow_boolean_cmd ("target-async", no_class, |
4970 | &target_async_permitted_1, _("\ | |
4971 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4972 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4973 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
4974 | set_target_async_command, |
4975 | show_target_async_command, | |
c6ebd6cf VP |
4976 | &setlist, |
4977 | &showlist); | |
4978 | ||
d914c394 SS |
4979 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4980 | &may_write_registers_1, _("\ | |
4981 | Set permission to write into registers."), _("\ | |
4982 | Show permission to write into registers."), _("\ | |
4983 | When this permission is on, GDB may write into the target's registers.\n\ | |
4984 | Otherwise, any sort of write attempt will result in an error."), | |
4985 | set_target_permissions, NULL, | |
4986 | &setlist, &showlist); | |
4987 | ||
4988 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4989 | &may_write_memory_1, _("\ | |
4990 | Set permission to write into target memory."), _("\ | |
4991 | Show permission to write into target memory."), _("\ | |
4992 | When this permission is on, GDB may write into the target's memory.\n\ | |
4993 | Otherwise, any sort of write attempt will result in an error."), | |
4994 | set_write_memory_permission, NULL, | |
4995 | &setlist, &showlist); | |
4996 | ||
4997 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4998 | &may_insert_breakpoints_1, _("\ | |
4999 | Set permission to insert breakpoints in the target."), _("\ | |
5000 | Show permission to insert breakpoints in the target."), _("\ | |
5001 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5002 | Otherwise, any sort of insertion attempt will result in an error."), | |
5003 | set_target_permissions, NULL, | |
5004 | &setlist, &showlist); | |
5005 | ||
5006 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5007 | &may_insert_tracepoints_1, _("\ | |
5008 | Set permission to insert tracepoints in the target."), _("\ | |
5009 | Show permission to insert tracepoints in the target."), _("\ | |
5010 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5011 | Otherwise, any sort of insertion attempt will result in an error."), | |
5012 | set_target_permissions, NULL, | |
5013 | &setlist, &showlist); | |
5014 | ||
5015 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5016 | &may_insert_fast_tracepoints_1, _("\ | |
5017 | Set permission to insert fast tracepoints in the target."), _("\ | |
5018 | Show permission to insert fast tracepoints in the target."), _("\ | |
5019 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5020 | Otherwise, any sort of insertion attempt will result in an error."), | |
5021 | set_target_permissions, NULL, | |
5022 | &setlist, &showlist); | |
5023 | ||
5024 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5025 | &may_stop_1, _("\ | |
5026 | Set permission to interrupt or signal the target."), _("\ | |
5027 | Show permission to interrupt or signal the target."), _("\ | |
5028 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5029 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5030 | set_target_permissions, NULL, | |
5031 | &setlist, &showlist); | |
c906108c | 5032 | } |