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 | |
1b67eb02 AS |
69 | static void *return_null (void); |
70 | ||
a14ed312 | 71 | void target_ignore (void); |
c906108c | 72 | |
a14ed312 | 73 | static void target_command (char *, int); |
c906108c | 74 | |
a14ed312 | 75 | static struct target_ops *find_default_run_target (char *); |
c906108c | 76 | |
4ac248ca YQ |
77 | static target_xfer_partial_ftype default_xfer_partial; |
78 | ||
c2250ad1 UW |
79 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
80 | ptid_t ptid); | |
81 | ||
0b5a2719 TT |
82 | static int dummy_find_memory_regions (struct target_ops *self, |
83 | find_memory_region_ftype ignore1, | |
84 | void *ignore2); | |
85 | ||
16f796b1 TT |
86 | static char *dummy_make_corefile_notes (struct target_ops *self, |
87 | bfd *ignore1, int *ignore2); | |
88 | ||
6b84065d TT |
89 | static int find_default_can_async_p (struct target_ops *ignore); |
90 | ||
91 | static int find_default_is_async_p (struct target_ops *ignore); | |
92 | ||
fe31bf5b TT |
93 | static enum exec_direction_kind default_execution_direction |
94 | (struct target_ops *self); | |
95 | ||
1101cb7b TT |
96 | #include "target-delegates.c" |
97 | ||
a14ed312 | 98 | static void init_dummy_target (void); |
c906108c | 99 | |
aa869812 AC |
100 | static struct target_ops debug_target; |
101 | ||
a14ed312 | 102 | static void debug_to_open (char *, int); |
c906108c | 103 | |
f32dbf8c MM |
104 | static void debug_to_prepare_to_store (struct target_ops *self, |
105 | struct regcache *); | |
c906108c | 106 | |
a14ed312 | 107 | static void debug_to_files_info (struct target_ops *); |
c906108c | 108 | |
3db08215 | 109 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 110 | struct bp_target_info *); |
c906108c | 111 | |
3db08215 | 112 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 113 | struct bp_target_info *); |
c906108c | 114 | |
5461485a TT |
115 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
116 | int, int, int); | |
ccaa32c7 | 117 | |
23a26771 TT |
118 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
119 | struct gdbarch *, | |
a6d9a66e | 120 | struct bp_target_info *); |
ccaa32c7 | 121 | |
a64dc96c TT |
122 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
123 | struct gdbarch *, | |
a6d9a66e | 124 | struct bp_target_info *); |
ccaa32c7 | 125 | |
7bb99c53 TT |
126 | static int debug_to_insert_watchpoint (struct target_ops *self, |
127 | CORE_ADDR, int, int, | |
0cf6dd15 | 128 | struct expression *); |
ccaa32c7 | 129 | |
11b5219a TT |
130 | static int debug_to_remove_watchpoint (struct target_ops *self, |
131 | CORE_ADDR, int, int, | |
0cf6dd15 | 132 | struct expression *); |
ccaa32c7 | 133 | |
4aa7a7f5 | 134 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 135 | |
5009afc5 AS |
136 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
137 | CORE_ADDR, CORE_ADDR, int); | |
138 | ||
31568a15 TT |
139 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
140 | CORE_ADDR, int); | |
e0d24f8d | 141 | |
c3a5ff89 TT |
142 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
143 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
144 | struct expression *); |
145 | ||
c42bf286 | 146 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 147 | |
d2f640d4 | 148 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 149 | |
2e1e1a19 | 150 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 151 | |
ae3bd431 | 152 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 153 | |
e3594fd1 | 154 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 155 | |
71a9f134 | 156 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 157 | |
da82bd6b | 158 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 159 | |
1eab8a48 | 160 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 161 | |
c906108c | 162 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 163 | array; the current index into the array; the allocated size of the |
c906108c SS |
164 | array. */ |
165 | struct target_ops **target_structs; | |
166 | unsigned target_struct_size; | |
c906108c SS |
167 | unsigned target_struct_allocsize; |
168 | #define DEFAULT_ALLOCSIZE 10 | |
169 | ||
170 | /* The initial current target, so that there is always a semi-valid | |
171 | current target. */ | |
172 | ||
173 | static struct target_ops dummy_target; | |
174 | ||
175 | /* Top of target stack. */ | |
176 | ||
258b763a | 177 | static struct target_ops *target_stack; |
c906108c SS |
178 | |
179 | /* The target structure we are currently using to talk to a process | |
180 | or file or whatever "inferior" we have. */ | |
181 | ||
182 | struct target_ops current_target; | |
183 | ||
184 | /* Command list for target. */ | |
185 | ||
186 | static struct cmd_list_element *targetlist = NULL; | |
187 | ||
cf7a04e8 DJ |
188 | /* Nonzero if we should trust readonly sections from the |
189 | executable when reading memory. */ | |
190 | ||
191 | static int trust_readonly = 0; | |
192 | ||
8defab1a DJ |
193 | /* Nonzero if we should show true memory content including |
194 | memory breakpoint inserted by gdb. */ | |
195 | ||
196 | static int show_memory_breakpoints = 0; | |
197 | ||
d914c394 SS |
198 | /* These globals control whether GDB attempts to perform these |
199 | operations; they are useful for targets that need to prevent | |
200 | inadvertant disruption, such as in non-stop mode. */ | |
201 | ||
202 | int may_write_registers = 1; | |
203 | ||
204 | int may_write_memory = 1; | |
205 | ||
206 | int may_insert_breakpoints = 1; | |
207 | ||
208 | int may_insert_tracepoints = 1; | |
209 | ||
210 | int may_insert_fast_tracepoints = 1; | |
211 | ||
212 | int may_stop = 1; | |
213 | ||
c906108c SS |
214 | /* Non-zero if we want to see trace of target level stuff. */ |
215 | ||
ccce17b0 | 216 | static unsigned int targetdebug = 0; |
920d2a44 AC |
217 | static void |
218 | show_targetdebug (struct ui_file *file, int from_tty, | |
219 | struct cmd_list_element *c, const char *value) | |
220 | { | |
221 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
222 | } | |
c906108c | 223 | |
a14ed312 | 224 | static void setup_target_debug (void); |
c906108c | 225 | |
c906108c SS |
226 | /* The user just typed 'target' without the name of a target. */ |
227 | ||
c906108c | 228 | static void |
fba45db2 | 229 | target_command (char *arg, int from_tty) |
c906108c SS |
230 | { |
231 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
232 | gdb_stdout); | |
233 | } | |
234 | ||
c35b1492 PA |
235 | /* Default target_has_* methods for process_stratum targets. */ |
236 | ||
237 | int | |
238 | default_child_has_all_memory (struct target_ops *ops) | |
239 | { | |
240 | /* If no inferior selected, then we can't read memory here. */ | |
241 | if (ptid_equal (inferior_ptid, null_ptid)) | |
242 | return 0; | |
243 | ||
244 | return 1; | |
245 | } | |
246 | ||
247 | int | |
248 | default_child_has_memory (struct target_ops *ops) | |
249 | { | |
250 | /* If no inferior selected, then we can't read memory here. */ | |
251 | if (ptid_equal (inferior_ptid, null_ptid)) | |
252 | return 0; | |
253 | ||
254 | return 1; | |
255 | } | |
256 | ||
257 | int | |
258 | default_child_has_stack (struct target_ops *ops) | |
259 | { | |
260 | /* If no inferior selected, there's no stack. */ | |
261 | if (ptid_equal (inferior_ptid, null_ptid)) | |
262 | return 0; | |
263 | ||
264 | return 1; | |
265 | } | |
266 | ||
267 | int | |
268 | default_child_has_registers (struct target_ops *ops) | |
269 | { | |
270 | /* Can't read registers from no inferior. */ | |
271 | if (ptid_equal (inferior_ptid, null_ptid)) | |
272 | return 0; | |
273 | ||
274 | return 1; | |
275 | } | |
276 | ||
277 | int | |
aeaec162 | 278 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
279 | { |
280 | /* If there's no thread selected, then we can't make it run through | |
281 | hoops. */ | |
aeaec162 | 282 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
283 | return 0; |
284 | ||
285 | return 1; | |
286 | } | |
287 | ||
288 | ||
289 | int | |
290 | target_has_all_memory_1 (void) | |
291 | { | |
292 | struct target_ops *t; | |
293 | ||
294 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
295 | if (t->to_has_all_memory (t)) | |
296 | return 1; | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | int | |
302 | target_has_memory_1 (void) | |
303 | { | |
304 | struct target_ops *t; | |
305 | ||
306 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
307 | if (t->to_has_memory (t)) | |
308 | return 1; | |
309 | ||
310 | return 0; | |
311 | } | |
312 | ||
313 | int | |
314 | target_has_stack_1 (void) | |
315 | { | |
316 | struct target_ops *t; | |
317 | ||
318 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
319 | if (t->to_has_stack (t)) | |
320 | return 1; | |
321 | ||
322 | return 0; | |
323 | } | |
324 | ||
325 | int | |
326 | target_has_registers_1 (void) | |
327 | { | |
328 | struct target_ops *t; | |
329 | ||
330 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
331 | if (t->to_has_registers (t)) | |
332 | return 1; | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
337 | int | |
aeaec162 | 338 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
339 | { |
340 | struct target_ops *t; | |
341 | ||
342 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 343 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
344 | return 1; |
345 | ||
346 | return 0; | |
347 | } | |
348 | ||
aeaec162 TT |
349 | int |
350 | target_has_execution_current (void) | |
351 | { | |
352 | return target_has_execution_1 (inferior_ptid); | |
353 | } | |
354 | ||
c22a2b88 TT |
355 | /* Complete initialization of T. This ensures that various fields in |
356 | T are set, if needed by the target implementation. */ | |
c906108c SS |
357 | |
358 | void | |
c22a2b88 | 359 | complete_target_initialization (struct target_ops *t) |
c906108c | 360 | { |
0088c768 | 361 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
362 | if (t->to_xfer_partial == NULL) |
363 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 364 | |
c35b1492 PA |
365 | if (t->to_has_all_memory == NULL) |
366 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
367 | ||
368 | if (t->to_has_memory == NULL) | |
369 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
370 | ||
371 | if (t->to_has_stack == NULL) | |
372 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
373 | ||
374 | if (t->to_has_registers == NULL) | |
375 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
376 | ||
377 | if (t->to_has_execution == NULL) | |
aeaec162 | 378 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
379 | |
380 | install_delegators (t); | |
c22a2b88 TT |
381 | } |
382 | ||
383 | /* Add possible target architecture T to the list and add a new | |
384 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
385 | completer if not NULL. */ | |
386 | ||
387 | void | |
388 | add_target_with_completer (struct target_ops *t, | |
389 | completer_ftype *completer) | |
390 | { | |
391 | struct cmd_list_element *c; | |
392 | ||
393 | complete_target_initialization (t); | |
c35b1492 | 394 | |
c906108c SS |
395 | if (!target_structs) |
396 | { | |
397 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
398 | target_structs = (struct target_ops **) xmalloc | |
399 | (target_struct_allocsize * sizeof (*target_structs)); | |
400 | } | |
401 | if (target_struct_size >= target_struct_allocsize) | |
402 | { | |
403 | target_struct_allocsize *= 2; | |
404 | target_structs = (struct target_ops **) | |
c5aa993b JM |
405 | xrealloc ((char *) target_structs, |
406 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
407 | } |
408 | target_structs[target_struct_size++] = t; | |
c906108c SS |
409 | |
410 | if (targetlist == NULL) | |
1bedd215 AC |
411 | add_prefix_cmd ("target", class_run, target_command, _("\ |
412 | Connect to a target machine or process.\n\ | |
c906108c SS |
413 | The first argument is the type or protocol of the target machine.\n\ |
414 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
415 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 416 | `help target ' followed by the protocol name."), |
c906108c | 417 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
418 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
419 | &targetlist); | |
420 | if (completer != NULL) | |
421 | set_cmd_completer (c, completer); | |
422 | } | |
423 | ||
424 | /* Add a possible target architecture to the list. */ | |
425 | ||
426 | void | |
427 | add_target (struct target_ops *t) | |
428 | { | |
429 | add_target_with_completer (t, NULL); | |
c906108c SS |
430 | } |
431 | ||
b48d48eb MM |
432 | /* See target.h. */ |
433 | ||
434 | void | |
435 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
436 | { | |
437 | struct cmd_list_element *c; | |
438 | char *alt; | |
439 | ||
440 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
441 | see PR cli/15104. */ | |
442 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
443 | alt = xstrprintf ("target %s", t->to_shortname); | |
444 | deprecate_cmd (c, alt); | |
445 | } | |
446 | ||
c906108c SS |
447 | /* Stub functions */ |
448 | ||
449 | void | |
fba45db2 | 450 | target_ignore (void) |
c906108c SS |
451 | { |
452 | } | |
453 | ||
7d85a9c0 JB |
454 | void |
455 | target_kill (void) | |
456 | { | |
457 | struct target_ops *t; | |
458 | ||
459 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
460 | if (t->to_kill != NULL) | |
461 | { | |
462 | if (targetdebug) | |
463 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
464 | ||
465 | t->to_kill (t); | |
466 | return; | |
467 | } | |
468 | ||
469 | noprocess (); | |
470 | } | |
471 | ||
11cf8741 JM |
472 | void |
473 | target_load (char *arg, int from_tty) | |
474 | { | |
4e5d721f | 475 | target_dcache_invalidate (); |
71a9f134 | 476 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
477 | } |
478 | ||
947b8855 PA |
479 | void |
480 | target_create_inferior (char *exec_file, char *args, | |
481 | char **env, int from_tty) | |
136d6dae VP |
482 | { |
483 | struct target_ops *t; | |
5d502164 | 484 | |
136d6dae VP |
485 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
486 | { | |
487 | if (t->to_create_inferior != NULL) | |
488 | { | |
489 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
490 | if (targetdebug) |
491 | fprintf_unfiltered (gdb_stdlog, | |
492 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
493 | exec_file, args, from_tty); | |
136d6dae VP |
494 | return; |
495 | } | |
496 | } | |
497 | ||
498 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 499 | _("could not find a target to create inferior")); |
136d6dae VP |
500 | } |
501 | ||
d9d2d8b6 PA |
502 | void |
503 | target_terminal_inferior (void) | |
504 | { | |
505 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 506 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
507 | this point the target is not async yet. However, if sync_execution |
508 | is not set, we know it will become async prior to resume. */ | |
509 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
510 | return; |
511 | ||
512 | /* If GDB is resuming the inferior in the foreground, install | |
513 | inferior's terminal modes. */ | |
d2f640d4 | 514 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 515 | } |
136d6dae | 516 | |
c906108c | 517 | static int |
fba45db2 KB |
518 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
519 | struct target_ops *t) | |
c906108c | 520 | { |
c378eb4e MS |
521 | errno = EIO; /* Can't read/write this location. */ |
522 | return 0; /* No bytes handled. */ | |
c906108c SS |
523 | } |
524 | ||
525 | static void | |
fba45db2 | 526 | tcomplain (void) |
c906108c | 527 | { |
8a3fe4f8 | 528 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
529 | current_target.to_shortname); |
530 | } | |
531 | ||
532 | void | |
fba45db2 | 533 | noprocess (void) |
c906108c | 534 | { |
8a3fe4f8 | 535 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
536 | } |
537 | ||
c906108c | 538 | static void |
0a4f40a2 | 539 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 540 | { |
a3f17187 | 541 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
542 | } |
543 | ||
0ef643c8 JB |
544 | /* A default implementation for the to_get_ada_task_ptid target method. |
545 | ||
546 | This function builds the PTID by using both LWP and TID as part of | |
547 | the PTID lwp and tid elements. The pid used is the pid of the | |
548 | inferior_ptid. */ | |
549 | ||
2c0b251b | 550 | static ptid_t |
1e6b91a4 | 551 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
552 | { |
553 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
554 | } | |
555 | ||
32231432 | 556 | static enum exec_direction_kind |
4c612759 | 557 | default_execution_direction (struct target_ops *self) |
32231432 PA |
558 | { |
559 | if (!target_can_execute_reverse) | |
560 | return EXEC_FORWARD; | |
561 | else if (!target_can_async_p ()) | |
562 | return EXEC_FORWARD; | |
563 | else | |
564 | gdb_assert_not_reached ("\ | |
565 | to_execution_direction must be implemented for reverse async"); | |
566 | } | |
567 | ||
7998dfc3 AC |
568 | /* Go through the target stack from top to bottom, copying over zero |
569 | entries in current_target, then filling in still empty entries. In | |
570 | effect, we are doing class inheritance through the pushed target | |
571 | vectors. | |
572 | ||
573 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
574 | is currently implemented, is that it discards any knowledge of | |
575 | which target an inherited method originally belonged to. | |
576 | Consequently, new new target methods should instead explicitly and | |
577 | locally search the target stack for the target that can handle the | |
578 | request. */ | |
c906108c SS |
579 | |
580 | static void | |
7998dfc3 | 581 | update_current_target (void) |
c906108c | 582 | { |
7998dfc3 AC |
583 | struct target_ops *t; |
584 | ||
08d8bcd7 | 585 | /* First, reset current's contents. */ |
7998dfc3 AC |
586 | memset (¤t_target, 0, sizeof (current_target)); |
587 | ||
1101cb7b TT |
588 | /* Install the delegators. */ |
589 | install_delegators (¤t_target); | |
590 | ||
7998dfc3 AC |
591 | #define INHERIT(FIELD, TARGET) \ |
592 | if (!current_target.FIELD) \ | |
593 | current_target.FIELD = (TARGET)->FIELD | |
594 | ||
595 | for (t = target_stack; t; t = t->beneath) | |
596 | { | |
597 | INHERIT (to_shortname, t); | |
598 | INHERIT (to_longname, t); | |
599 | INHERIT (to_doc, t); | |
b52323fa UW |
600 | /* Do not inherit to_open. */ |
601 | /* Do not inherit to_close. */ | |
136d6dae | 602 | /* Do not inherit to_attach. */ |
bebd3233 | 603 | /* Do not inherit to_post_attach. */ |
dc177b7a | 604 | INHERIT (to_attach_no_wait, t); |
136d6dae | 605 | /* Do not inherit to_detach. */ |
597320e7 | 606 | /* Do not inherit to_disconnect. */ |
28439f5e | 607 | /* Do not inherit to_resume. */ |
117de6a9 | 608 | /* Do not inherit to_wait. */ |
28439f5e PA |
609 | /* Do not inherit to_fetch_registers. */ |
610 | /* Do not inherit to_store_registers. */ | |
6c628163 | 611 | /* Do not inherit to_prepare_to_store. */ |
c8e73a31 | 612 | INHERIT (deprecated_xfer_memory, t); |
f86e59b2 | 613 | /* Do not inherit to_files_info. */ |
3db08215 MM |
614 | /* Do not inherit to_insert_breakpoint. */ |
615 | /* Do not inherit to_remove_breakpoint. */ | |
52b51d06 | 616 | /* Do not inherit to_can_use_hw_breakpoint. */ |
61b371f9 | 617 | /* Do not inherit to_insert_hw_breakpoint. */ |
418dabac | 618 | /* Do not inherit to_remove_hw_breakpoint. */ |
f1310107 | 619 | /* Do not inherit to_ranged_break_num_registers. */ |
016facd4 | 620 | /* Do not inherit to_insert_watchpoint. */ |
61dd109f | 621 | /* Do not inherit to_remove_watchpoint. */ |
9c06b0b4 TJB |
622 | /* Do not inherit to_insert_mask_watchpoint. */ |
623 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 624 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 625 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 626 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 627 | /* Do not inherit to_stopped_by_watchpoint. */ |
65f160a9 | 628 | /* Do not inherit to_watchpoint_addr_within_range. */ |
d03655e4 | 629 | /* Do not inherit to_region_ok_for_hw_watchpoint. */ |
77cdffe9 | 630 | /* Do not inherit to_can_accel_watchpoint_condition. */ |
9c06b0b4 | 631 | /* Do not inherit to_masked_watch_num_registers. */ |
0343661d | 632 | /* Do not inherit to_terminal_init. */ |
ddeaacc9 | 633 | /* Do not inherit to_terminal_inferior. */ |
74fcbef9 | 634 | /* Do not inherit to_terminal_ours_for_output. */ |
e4a733f1 | 635 | /* Do not inherit to_terminal_ours. */ |
c6ea8f79 | 636 | /* Do not inherit to_terminal_save_ours. */ |
e19e919f | 637 | /* Do not inherit to_terminal_info. */ |
7d85a9c0 | 638 | /* Do not inherit to_kill. */ |
7634da87 | 639 | /* Do not inherit to_load. */ |
136d6dae | 640 | /* Do no inherit to_create_inferior. */ |
340ba4bf | 641 | /* Do not inherit to_post_startup_inferior. */ |
5958ebeb | 642 | /* Do not inherit to_insert_fork_catchpoint. */ |
e1a21fb7 | 643 | /* Do not inherit to_remove_fork_catchpoint. */ |
7e18a8dc | 644 | /* Do not inherit to_insert_vfork_catchpoint. */ |
95c3375e | 645 | /* Do not inherit to_remove_vfork_catchpoint. */ |
ee057212 | 646 | /* Do not inherit to_follow_fork. */ |
62f64d7a | 647 | /* Do not inherit to_insert_exec_catchpoint. */ |
cda0f38c | 648 | /* Do not inherit to_remove_exec_catchpoint. */ |
6a9fa051 | 649 | /* Do not inherit to_set_syscall_catchpoint. */ |
0db88c1d | 650 | /* Do not inherit to_has_exited. */ |
82892036 | 651 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 652 | INHERIT (to_can_run, t); |
2455069d | 653 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 654 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
655 | /* Do not inherit to_thread_alive. */ |
656 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 657 | /* Do not inherit to_pid_to_str. */ |
4a7e6dda | 658 | /* Do not inherit to_extra_thread_info. */ |
825828fc | 659 | /* Do not inherit to_thread_name. */ |
7998dfc3 | 660 | INHERIT (to_stop, t); |
4b8a223f | 661 | /* Do not inherit to_xfer_partial. */ |
a53f3625 | 662 | /* Do not inherit to_rcmd. */ |
830ca330 | 663 | /* Do not inherit to_pid_to_exec_file. */ |
d9cb0195 | 664 | /* Do not inherit to_log_command. */ |
7998dfc3 | 665 | INHERIT (to_stratum, t); |
c378eb4e MS |
666 | /* Do not inherit to_has_all_memory. */ |
667 | /* Do not inherit to_has_memory. */ | |
668 | /* Do not inherit to_has_stack. */ | |
669 | /* Do not inherit to_has_registers. */ | |
670 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 671 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
672 | /* Do not inherit to_can_async_p. */ |
673 | /* Do not inherit to_is_async_p. */ | |
674 | /* Do not inherit to_async. */ | |
0b5a2719 | 675 | /* Do not inherit to_find_memory_regions. */ |
16f796b1 | 676 | /* Do not inherit to_make_corefile_notes. */ |
3dbafbbb | 677 | /* Do not inherit to_get_bookmark. */ |
9bb9d61d | 678 | /* Do not inherit to_goto_bookmark. */ |
117de6a9 | 679 | /* Do not inherit to_get_thread_local_address. */ |
53e1cfc7 | 680 | /* Do not inherit to_can_execute_reverse. */ |
fe31bf5b | 681 | /* Do not inherit to_execution_direction. */ |
43eba180 | 682 | /* Do not inherit to_thread_architecture. */ |
424163ea | 683 | /* Do not inherit to_read_description. */ |
4229b31d | 684 | /* Do not inherit to_get_ada_task_ptid. */ |
08388c79 | 685 | /* Do not inherit to_search_memory. */ |
a7304748 | 686 | /* Do not inherit to_supports_multi_process. */ |
aab1b22d | 687 | /* Do not inherit to_supports_enable_disable_tracepoint. */ |
9409d39e | 688 | /* Do not inherit to_supports_string_tracing. */ |
5536135b | 689 | /* Do not inherit to_trace_init. */ |
9a980a22 | 690 | /* Do not inherit to_download_tracepoint. */ |
719acc4a | 691 | /* Do not inherit to_can_download_tracepoint. */ |
94eb98b9 | 692 | /* Do not inherit to_download_trace_state_variable. */ |
151f70f1 | 693 | /* Do not inherit to_enable_tracepoint. */ |
05c41993 | 694 | /* Do not inherit to_disable_tracepoint. */ |
86dd181d | 695 | /* Do not inherit to_trace_set_readonly_regions. */ |
25da2e80 | 696 | /* Do not inherit to_trace_start. */ |
4072d4ff | 697 | /* Do not inherit to_get_trace_status. */ |
6fea14cd | 698 | /* Do not inherit to_get_tracepoint_status. */ |
e51c07ea | 699 | /* Do not inherit to_trace_stop. */ |
afc94e66 | 700 | /* Do not inherit to_trace_find. */ |
959bcd0b | 701 | /* Do not inherit to_get_trace_state_variable_value. */ |
a2e6c147 | 702 | /* Do not inherit to_save_trace_data. */ |
1e949b00 | 703 | /* Do not inherit to_upload_tracepoints. */ |
08120467 | 704 | /* Do not inherit to_upload_trace_state_variables. */ |
ace92e7d | 705 | /* Do not inherit to_get_raw_trace_data. */ |
9249843f | 706 | /* Do not inherit to_get_min_fast_tracepoint_insn_len. */ |
0bcfeddf | 707 | /* Do not inherit to_set_disconnected_tracing. */ |
8d526939 | 708 | /* Do not inherit to_set_circular_trace_buffer. */ |
f6f899bf | 709 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 710 | INHERIT (to_set_trace_notes, t); |
711e434b | 711 | INHERIT (to_get_tib_address, t); |
d914c394 | 712 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
713 | INHERIT (to_static_tracepoint_marker_at, t); |
714 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 715 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
716 | INHERIT (to_use_agent, t); |
717 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 718 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 719 | INHERIT (to_magic, t); |
b775012e | 720 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 721 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 722 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
723 | /* Do not inherit to_flash_erase. */ |
724 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
725 | } |
726 | #undef INHERIT | |
727 | ||
728 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
729 | it. Some entries are defaulted to a method that print an error, |
730 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
731 | |
732 | #define de_fault(field, value) \ | |
7998dfc3 AC |
733 | if (!current_target.field) \ |
734 | current_target.field = value | |
0d06e24b | 735 | |
2bc416ba DJ |
736 | de_fault (to_open, |
737 | (void (*) (char *, int)) | |
0d06e24b | 738 | tcomplain); |
2bc416ba | 739 | de_fault (to_close, |
de90e03d | 740 | (void (*) (struct target_ops *)) |
0d06e24b | 741 | target_ignore); |
2bc416ba | 742 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
743 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
744 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 745 | nomemory); |
2bc416ba | 746 | de_fault (to_can_run, |
da82bd6b | 747 | (int (*) (struct target_ops *)) |
0d06e24b | 748 | return_zero); |
2bc416ba | 749 | de_fault (to_stop, |
1eab8a48 | 750 | (void (*) (struct target_ops *, ptid_t)) |
0d06e24b | 751 | target_ignore); |
424163ea | 752 | current_target.to_read_description = NULL; |
f6f899bf | 753 | de_fault (to_set_trace_buffer_size, |
4da384be | 754 | (void (*) (struct target_ops *, LONGEST)) |
f6f899bf | 755 | target_ignore); |
f196051f | 756 | de_fault (to_set_trace_notes, |
d9e68a2c TT |
757 | (int (*) (struct target_ops *, |
758 | const char *, const char *, const char *)) | |
f196051f | 759 | return_zero); |
711e434b | 760 | de_fault (to_get_tib_address, |
bd7ae0f5 | 761 | (int (*) (struct target_ops *, ptid_t, CORE_ADDR *)) |
711e434b | 762 | tcomplain); |
d914c394 | 763 | de_fault (to_set_permissions, |
c378d69d | 764 | (void (*) (struct target_ops *)) |
d914c394 | 765 | target_ignore); |
0fb4aa4b | 766 | de_fault (to_static_tracepoint_marker_at, |
61fc905d TT |
767 | (int (*) (struct target_ops *, |
768 | CORE_ADDR, struct static_tracepoint_marker *)) | |
0fb4aa4b PA |
769 | return_zero); |
770 | de_fault (to_static_tracepoint_markers_by_strid, | |
c686c57f TT |
771 | (VEC(static_tracepoint_marker_p) * (*) (struct target_ops *, |
772 | const char *)) | |
0fb4aa4b | 773 | tcomplain); |
b3b9301e | 774 | de_fault (to_traceframe_info, |
a893e81f | 775 | (struct traceframe_info * (*) (struct target_ops *)) |
1b67eb02 | 776 | return_null); |
b775012e | 777 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
efcc2da7 | 778 | (int (*) (struct target_ops *)) |
b775012e | 779 | return_zero); |
d3ce09f5 | 780 | de_fault (to_can_run_breakpoint_commands, |
78eff0ec | 781 | (int (*) (struct target_ops *)) |
d3ce09f5 | 782 | return_zero); |
d1feda86 | 783 | de_fault (to_use_agent, |
2c152180 | 784 | (int (*) (struct target_ops *, int)) |
d1feda86 YQ |
785 | tcomplain); |
786 | de_fault (to_can_use_agent, | |
fe38f897 | 787 | (int (*) (struct target_ops *)) |
d1feda86 | 788 | return_zero); |
ced63ec0 | 789 | de_fault (to_augmented_libraries_svr4_read, |
5436ff03 | 790 | (int (*) (struct target_ops *)) |
ced63ec0 | 791 | return_zero); |
32231432 | 792 | |
c906108c | 793 | #undef de_fault |
c906108c | 794 | |
7998dfc3 AC |
795 | /* Finally, position the target-stack beneath the squashed |
796 | "current_target". That way code looking for a non-inherited | |
797 | target method can quickly and simply find it. */ | |
798 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
799 | |
800 | if (targetdebug) | |
801 | setup_target_debug (); | |
c906108c SS |
802 | } |
803 | ||
804 | /* Push a new target type into the stack of the existing target accessors, | |
805 | possibly superseding some of the existing accessors. | |
806 | ||
c906108c SS |
807 | Rather than allow an empty stack, we always have the dummy target at |
808 | the bottom stratum, so we can call the function vectors without | |
809 | checking them. */ | |
810 | ||
b26a4dcb | 811 | void |
fba45db2 | 812 | push_target (struct target_ops *t) |
c906108c | 813 | { |
258b763a | 814 | struct target_ops **cur; |
c906108c SS |
815 | |
816 | /* Check magic number. If wrong, it probably means someone changed | |
817 | the struct definition, but not all the places that initialize one. */ | |
818 | if (t->to_magic != OPS_MAGIC) | |
819 | { | |
c5aa993b JM |
820 | fprintf_unfiltered (gdb_stderr, |
821 | "Magic number of %s target struct wrong\n", | |
822 | t->to_shortname); | |
3e43a32a MS |
823 | internal_error (__FILE__, __LINE__, |
824 | _("failed internal consistency check")); | |
c906108c SS |
825 | } |
826 | ||
258b763a AC |
827 | /* Find the proper stratum to install this target in. */ |
828 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 829 | { |
258b763a | 830 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
831 | break; |
832 | } | |
833 | ||
258b763a | 834 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 835 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
836 | targets to CUR, and not just those at this stratum level. */ |
837 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
838 | { | |
839 | /* There's already something at this stratum level. Close it, | |
840 | and un-hook it from the stack. */ | |
841 | struct target_ops *tmp = (*cur); | |
5d502164 | 842 | |
258b763a AC |
843 | (*cur) = (*cur)->beneath; |
844 | tmp->beneath = NULL; | |
460014f5 | 845 | target_close (tmp); |
258b763a | 846 | } |
c906108c SS |
847 | |
848 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
849 | t->beneath = (*cur); |
850 | (*cur) = t; | |
c906108c SS |
851 | |
852 | update_current_target (); | |
c906108c SS |
853 | } |
854 | ||
2bc416ba | 855 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
856 | Return how many times it was removed (0 or 1). */ |
857 | ||
858 | int | |
fba45db2 | 859 | unpush_target (struct target_ops *t) |
c906108c | 860 | { |
258b763a AC |
861 | struct target_ops **cur; |
862 | struct target_ops *tmp; | |
c906108c | 863 | |
c8d104ad PA |
864 | if (t->to_stratum == dummy_stratum) |
865 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 866 | _("Attempt to unpush the dummy target")); |
c8d104ad | 867 | |
c906108c | 868 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 869 | can only occur once in the target stack. */ |
c906108c | 870 | |
258b763a AC |
871 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
872 | { | |
873 | if ((*cur) == t) | |
874 | break; | |
875 | } | |
c906108c | 876 | |
305436e0 PA |
877 | /* If we don't find target_ops, quit. Only open targets should be |
878 | closed. */ | |
258b763a | 879 | if ((*cur) == NULL) |
305436e0 | 880 | return 0; |
5269965e | 881 | |
c378eb4e | 882 | /* Unchain the target. */ |
258b763a AC |
883 | tmp = (*cur); |
884 | (*cur) = (*cur)->beneath; | |
885 | tmp->beneath = NULL; | |
c906108c SS |
886 | |
887 | update_current_target (); | |
c906108c | 888 | |
305436e0 PA |
889 | /* Finally close the target. Note we do this after unchaining, so |
890 | any target method calls from within the target_close | |
891 | implementation don't end up in T anymore. */ | |
460014f5 | 892 | target_close (t); |
305436e0 | 893 | |
c906108c SS |
894 | return 1; |
895 | } | |
896 | ||
aa76d38d | 897 | void |
460014f5 | 898 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 899 | { |
87ab71f0 | 900 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 901 | { |
aa76d38d PA |
902 | if (!unpush_target (target_stack)) |
903 | { | |
904 | fprintf_unfiltered (gdb_stderr, | |
905 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 906 | target_stack->to_shortname); |
aa76d38d PA |
907 | internal_error (__FILE__, __LINE__, |
908 | _("failed internal consistency check")); | |
909 | break; | |
910 | } | |
911 | } | |
912 | } | |
913 | ||
87ab71f0 | 914 | void |
460014f5 | 915 | pop_all_targets (void) |
87ab71f0 | 916 | { |
460014f5 | 917 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
918 | } |
919 | ||
c0edd9ed JK |
920 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
921 | ||
922 | int | |
923 | target_is_pushed (struct target_ops *t) | |
924 | { | |
925 | struct target_ops **cur; | |
926 | ||
927 | /* Check magic number. If wrong, it probably means someone changed | |
928 | the struct definition, but not all the places that initialize one. */ | |
929 | if (t->to_magic != OPS_MAGIC) | |
930 | { | |
931 | fprintf_unfiltered (gdb_stderr, | |
932 | "Magic number of %s target struct wrong\n", | |
933 | t->to_shortname); | |
3e43a32a MS |
934 | internal_error (__FILE__, __LINE__, |
935 | _("failed internal consistency check")); | |
c0edd9ed JK |
936 | } |
937 | ||
938 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
939 | if (*cur == t) | |
940 | return 1; | |
941 | ||
942 | return 0; | |
943 | } | |
944 | ||
72f5cf0e | 945 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
946 | current thread's thread-local storage with offset OFFSET. */ |
947 | CORE_ADDR | |
948 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
949 | { | |
950 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
951 | struct target_ops *target; |
952 | ||
953 | for (target = current_target.beneath; | |
954 | target != NULL; | |
955 | target = target->beneath) | |
956 | { | |
957 | if (target->to_get_thread_local_address != NULL) | |
958 | break; | |
959 | } | |
9e35dae4 | 960 | |
117de6a9 | 961 | if (target != NULL |
f5656ead | 962 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
963 | { |
964 | ptid_t ptid = inferior_ptid; | |
965 | volatile struct gdb_exception ex; | |
966 | ||
967 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
968 | { | |
969 | CORE_ADDR lm_addr; | |
970 | ||
971 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 972 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
973 | objfile); |
974 | /* If it's 0, throw the appropriate exception. */ | |
975 | if (lm_addr == 0) | |
976 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
977 | _("TLS load module not found")); | |
978 | ||
3e43a32a MS |
979 | addr = target->to_get_thread_local_address (target, ptid, |
980 | lm_addr, offset); | |
9e35dae4 DJ |
981 | } |
982 | /* If an error occurred, print TLS related messages here. Otherwise, | |
983 | throw the error to some higher catcher. */ | |
984 | if (ex.reason < 0) | |
985 | { | |
986 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
987 | ||
988 | switch (ex.error) | |
989 | { | |
990 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
991 | error (_("Cannot find thread-local variables " |
992 | "in this thread library.")); | |
9e35dae4 DJ |
993 | break; |
994 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
995 | if (objfile_is_library) | |
996 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 997 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
998 | else |
999 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 1000 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1001 | break; |
1002 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1003 | if (objfile_is_library) | |
1004 | error (_("The inferior has not yet allocated storage for" | |
1005 | " thread-local variables in\n" | |
1006 | "the shared library `%s'\n" | |
1007 | "for %s"), | |
4262abfb | 1008 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1009 | else |
1010 | error (_("The inferior has not yet allocated storage for" | |
1011 | " thread-local variables in\n" | |
1012 | "the executable `%s'\n" | |
1013 | "for %s"), | |
4262abfb | 1014 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1015 | break; |
1016 | case TLS_GENERIC_ERROR: | |
1017 | if (objfile_is_library) | |
1018 | error (_("Cannot find thread-local storage for %s, " | |
1019 | "shared library %s:\n%s"), | |
1020 | target_pid_to_str (ptid), | |
4262abfb | 1021 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1022 | else |
1023 | error (_("Cannot find thread-local storage for %s, " | |
1024 | "executable file %s:\n%s"), | |
1025 | target_pid_to_str (ptid), | |
4262abfb | 1026 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1027 | break; |
1028 | default: | |
1029 | throw_exception (ex); | |
1030 | break; | |
1031 | } | |
1032 | } | |
1033 | } | |
1034 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1035 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1036 | else | |
1037 | error (_("Cannot find thread-local variables on this target")); | |
1038 | ||
1039 | return addr; | |
1040 | } | |
1041 | ||
6be7b56e | 1042 | const char * |
9b409511 | 1043 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1044 | { |
1045 | #define CASE(X) case X: return #X | |
1046 | switch (err) | |
1047 | { | |
1048 | CASE(TARGET_XFER_E_IO); | |
1049 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1050 | default: | |
1051 | return "<unknown>"; | |
1052 | } | |
1053 | #undef CASE | |
1054 | }; | |
1055 | ||
1056 | ||
c906108c SS |
1057 | #undef MIN |
1058 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1059 | ||
1060 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1061 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1062 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1063 | is responsible for freeing it. Return the number of bytes successfully | |
1064 | read. */ | |
1065 | ||
1066 | int | |
fba45db2 | 1067 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1068 | { |
c2e8b827 | 1069 | int tlen, offset, i; |
1b0ba102 | 1070 | gdb_byte buf[4]; |
c906108c SS |
1071 | int errcode = 0; |
1072 | char *buffer; | |
1073 | int buffer_allocated; | |
1074 | char *bufptr; | |
1075 | unsigned int nbytes_read = 0; | |
1076 | ||
6217bf3e MS |
1077 | gdb_assert (string); |
1078 | ||
c906108c SS |
1079 | /* Small for testing. */ |
1080 | buffer_allocated = 4; | |
1081 | buffer = xmalloc (buffer_allocated); | |
1082 | bufptr = buffer; | |
1083 | ||
c906108c SS |
1084 | while (len > 0) |
1085 | { | |
1086 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1087 | offset = memaddr & 3; | |
1088 | ||
1b0ba102 | 1089 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1090 | if (errcode != 0) |
1091 | { | |
1092 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1093 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1094 | a single byte. */ |
1095 | tlen = 1; | |
1096 | offset = 0; | |
b8eb5af0 | 1097 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1098 | if (errcode != 0) |
1099 | goto done; | |
1100 | } | |
1101 | ||
1102 | if (bufptr - buffer + tlen > buffer_allocated) | |
1103 | { | |
1104 | unsigned int bytes; | |
5d502164 | 1105 | |
c906108c SS |
1106 | bytes = bufptr - buffer; |
1107 | buffer_allocated *= 2; | |
1108 | buffer = xrealloc (buffer, buffer_allocated); | |
1109 | bufptr = buffer + bytes; | |
1110 | } | |
1111 | ||
1112 | for (i = 0; i < tlen; i++) | |
1113 | { | |
1114 | *bufptr++ = buf[i + offset]; | |
1115 | if (buf[i + offset] == '\000') | |
1116 | { | |
1117 | nbytes_read += i + 1; | |
1118 | goto done; | |
1119 | } | |
1120 | } | |
1121 | ||
1122 | memaddr += tlen; | |
1123 | len -= tlen; | |
1124 | nbytes_read += tlen; | |
1125 | } | |
c5aa993b | 1126 | done: |
6217bf3e | 1127 | *string = buffer; |
c906108c SS |
1128 | if (errnop != NULL) |
1129 | *errnop = errcode; | |
c906108c SS |
1130 | return nbytes_read; |
1131 | } | |
1132 | ||
07b82ea5 PA |
1133 | struct target_section_table * |
1134 | target_get_section_table (struct target_ops *target) | |
1135 | { | |
1136 | struct target_ops *t; | |
1137 | ||
1138 | if (targetdebug) | |
1139 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1140 | ||
1141 | for (t = target; t != NULL; t = t->beneath) | |
1142 | if (t->to_get_section_table != NULL) | |
1143 | return (*t->to_get_section_table) (t); | |
1144 | ||
1145 | return NULL; | |
1146 | } | |
1147 | ||
8db32d44 | 1148 | /* Find a section containing ADDR. */ |
07b82ea5 | 1149 | |
0542c86d | 1150 | struct target_section * |
8db32d44 AC |
1151 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1152 | { | |
07b82ea5 | 1153 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1154 | struct target_section *secp; |
07b82ea5 PA |
1155 | |
1156 | if (table == NULL) | |
1157 | return NULL; | |
1158 | ||
1159 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1160 | { |
1161 | if (addr >= secp->addr && addr < secp->endaddr) | |
1162 | return secp; | |
1163 | } | |
1164 | return NULL; | |
1165 | } | |
1166 | ||
e6e4e701 PA |
1167 | /* Read memory from the live target, even if currently inspecting a |
1168 | traceframe. The return is the same as that of target_read. */ | |
1169 | ||
9b409511 | 1170 | static enum target_xfer_status |
e6e4e701 | 1171 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1172 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1173 | ULONGEST *xfered_len) | |
e6e4e701 | 1174 | { |
9b409511 | 1175 | enum target_xfer_status ret; |
e6e4e701 PA |
1176 | struct cleanup *cleanup; |
1177 | ||
1178 | /* Switch momentarily out of tfind mode so to access live memory. | |
1179 | Note that this must not clear global state, such as the frame | |
1180 | cache, which must still remain valid for the previous traceframe. | |
1181 | We may be _building_ the frame cache at this point. */ | |
1182 | cleanup = make_cleanup_restore_traceframe_number (); | |
1183 | set_traceframe_number (-1); | |
1184 | ||
9b409511 YQ |
1185 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1186 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1187 | |
1188 | do_cleanups (cleanup); | |
1189 | return ret; | |
1190 | } | |
1191 | ||
1192 | /* Using the set of read-only target sections of OPS, read live | |
1193 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1194 | top-most target again. |
1195 | ||
1196 | For interface/parameters/return description see target.h, | |
1197 | to_xfer_partial. */ | |
e6e4e701 | 1198 | |
9b409511 | 1199 | static enum target_xfer_status |
e6e4e701 PA |
1200 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1201 | enum target_object object, | |
1202 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1203 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1204 | { |
1205 | struct target_section *secp; | |
1206 | struct target_section_table *table; | |
1207 | ||
1208 | secp = target_section_by_addr (ops, memaddr); | |
1209 | if (secp != NULL | |
2b2848e2 DE |
1210 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1211 | secp->the_bfd_section) | |
e6e4e701 PA |
1212 | & SEC_READONLY)) |
1213 | { | |
1214 | struct target_section *p; | |
1215 | ULONGEST memend = memaddr + len; | |
1216 | ||
1217 | table = target_get_section_table (ops); | |
1218 | ||
1219 | for (p = table->sections; p < table->sections_end; p++) | |
1220 | { | |
1221 | if (memaddr >= p->addr) | |
1222 | { | |
1223 | if (memend <= p->endaddr) | |
1224 | { | |
1225 | /* Entire transfer is within this section. */ | |
1226 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1227 | readbuf, len, xfered_len); |
e6e4e701 PA |
1228 | } |
1229 | else if (memaddr >= p->endaddr) | |
1230 | { | |
1231 | /* This section ends before the transfer starts. */ | |
1232 | continue; | |
1233 | } | |
1234 | else | |
1235 | { | |
1236 | /* This section overlaps the transfer. Just do half. */ | |
1237 | len = p->endaddr - memaddr; | |
1238 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1239 | readbuf, len, xfered_len); |
e6e4e701 PA |
1240 | } |
1241 | } | |
1242 | } | |
1243 | } | |
1244 | ||
9b409511 | 1245 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1246 | } |
1247 | ||
9f713294 YQ |
1248 | /* Read memory from more than one valid target. A core file, for |
1249 | instance, could have some of memory but delegate other bits to | |
1250 | the target below it. So, we must manually try all targets. */ | |
1251 | ||
9b409511 | 1252 | static enum target_xfer_status |
17fde6d0 | 1253 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1254 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1255 | ULONGEST *xfered_len) | |
9f713294 | 1256 | { |
9b409511 | 1257 | enum target_xfer_status res; |
9f713294 YQ |
1258 | |
1259 | do | |
1260 | { | |
1261 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1262 | readbuf, writebuf, memaddr, len, |
1263 | xfered_len); | |
1264 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1265 | break; |
1266 | ||
633785ff MM |
1267 | /* Stop if the target reports that the memory is not available. */ |
1268 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1269 | break; | |
1270 | ||
9f713294 YQ |
1271 | /* We want to continue past core files to executables, but not |
1272 | past a running target's memory. */ | |
1273 | if (ops->to_has_all_memory (ops)) | |
1274 | break; | |
1275 | ||
1276 | ops = ops->beneath; | |
1277 | } | |
1278 | while (ops != NULL); | |
1279 | ||
1280 | return res; | |
1281 | } | |
1282 | ||
7f79c47e DE |
1283 | /* Perform a partial memory transfer. |
1284 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1285 | |
9b409511 | 1286 | static enum target_xfer_status |
f0ba3972 | 1287 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1288 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1289 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1290 | { |
9b409511 | 1291 | enum target_xfer_status res; |
cf7a04e8 DJ |
1292 | int reg_len; |
1293 | struct mem_region *region; | |
4e5d721f | 1294 | struct inferior *inf; |
cf7a04e8 | 1295 | |
07b82ea5 PA |
1296 | /* For accesses to unmapped overlay sections, read directly from |
1297 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1298 | if (readbuf != NULL && overlay_debugging) | |
1299 | { | |
1300 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1301 | |
07b82ea5 PA |
1302 | if (pc_in_unmapped_range (memaddr, section)) |
1303 | { | |
1304 | struct target_section_table *table | |
1305 | = target_get_section_table (ops); | |
1306 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1307 | |
07b82ea5 PA |
1308 | memaddr = overlay_mapped_address (memaddr, section); |
1309 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1310 | memaddr, len, xfered_len, |
07b82ea5 PA |
1311 | table->sections, |
1312 | table->sections_end, | |
1313 | section_name); | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1318 | if (readbuf != NULL && trust_readonly) |
1319 | { | |
0542c86d | 1320 | struct target_section *secp; |
07b82ea5 | 1321 | struct target_section_table *table; |
cf7a04e8 DJ |
1322 | |
1323 | secp = target_section_by_addr (ops, memaddr); | |
1324 | if (secp != NULL | |
2b2848e2 DE |
1325 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1326 | secp->the_bfd_section) | |
cf7a04e8 | 1327 | & SEC_READONLY)) |
07b82ea5 PA |
1328 | { |
1329 | table = target_get_section_table (ops); | |
1330 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1331 | memaddr, len, xfered_len, |
07b82ea5 PA |
1332 | table->sections, |
1333 | table->sections_end, | |
1334 | NULL); | |
1335 | } | |
98646950 UW |
1336 | } |
1337 | ||
e6e4e701 PA |
1338 | /* If reading unavailable memory in the context of traceframes, and |
1339 | this address falls within a read-only section, fallback to | |
1340 | reading from live memory. */ | |
1341 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1342 | { | |
1343 | VEC(mem_range_s) *available; | |
1344 | ||
1345 | /* If we fail to get the set of available memory, then the | |
1346 | target does not support querying traceframe info, and so we | |
1347 | attempt reading from the traceframe anyway (assuming the | |
1348 | target implements the old QTro packet then). */ | |
1349 | if (traceframe_available_memory (&available, memaddr, len)) | |
1350 | { | |
1351 | struct cleanup *old_chain; | |
1352 | ||
1353 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1354 | ||
1355 | if (VEC_empty (mem_range_s, available) | |
1356 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1357 | { | |
1358 | /* Don't read into the traceframe's available | |
1359 | memory. */ | |
1360 | if (!VEC_empty (mem_range_s, available)) | |
1361 | { | |
1362 | LONGEST oldlen = len; | |
1363 | ||
1364 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1365 | gdb_assert (len <= oldlen); | |
1366 | } | |
1367 | ||
1368 | do_cleanups (old_chain); | |
1369 | ||
1370 | /* This goes through the topmost target again. */ | |
1371 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1372 | readbuf, memaddr, |
1373 | len, xfered_len); | |
1374 | if (res == TARGET_XFER_OK) | |
1375 | return TARGET_XFER_OK; | |
1376 | else | |
1377 | { | |
1378 | /* No use trying further, we know some memory starting | |
1379 | at MEMADDR isn't available. */ | |
1380 | *xfered_len = len; | |
1381 | return TARGET_XFER_E_UNAVAILABLE; | |
1382 | } | |
e6e4e701 PA |
1383 | } |
1384 | ||
1385 | /* Don't try to read more than how much is available, in | |
1386 | case the target implements the deprecated QTro packet to | |
1387 | cater for older GDBs (the target's knowledge of read-only | |
1388 | sections may be outdated by now). */ | |
1389 | len = VEC_index (mem_range_s, available, 0)->length; | |
1390 | ||
1391 | do_cleanups (old_chain); | |
1392 | } | |
1393 | } | |
1394 | ||
cf7a04e8 DJ |
1395 | /* Try GDB's internal data cache. */ |
1396 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1397 | /* region->hi == 0 means there's no upper bound. */ |
1398 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1399 | reg_len = len; |
1400 | else | |
1401 | reg_len = region->hi - memaddr; | |
1402 | ||
1403 | switch (region->attrib.mode) | |
1404 | { | |
1405 | case MEM_RO: | |
1406 | if (writebuf != NULL) | |
2ed4b548 | 1407 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1408 | break; |
1409 | ||
1410 | case MEM_WO: | |
1411 | if (readbuf != NULL) | |
2ed4b548 | 1412 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1413 | break; |
a76d924d DJ |
1414 | |
1415 | case MEM_FLASH: | |
1416 | /* We only support writing to flash during "load" for now. */ | |
1417 | if (writebuf != NULL) | |
1418 | error (_("Writing to flash memory forbidden in this context")); | |
1419 | break; | |
4b5752d0 VP |
1420 | |
1421 | case MEM_NONE: | |
2ed4b548 | 1422 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1423 | } |
1424 | ||
6c95b8df PA |
1425 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1426 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1427 | else | |
1428 | inf = NULL; | |
4e5d721f DE |
1429 | |
1430 | if (inf != NULL | |
2f4d8875 PA |
1431 | /* The dcache reads whole cache lines; that doesn't play well |
1432 | with reading from a trace buffer, because reading outside of | |
1433 | the collected memory range fails. */ | |
1434 | && get_traceframe_number () == -1 | |
4e5d721f | 1435 | && (region->attrib.cache |
29453a14 YQ |
1436 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1437 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1438 | { |
2a2f9fe4 | 1439 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1440 | int l; |
2a2f9fe4 | 1441 | |
cf7a04e8 | 1442 | if (readbuf != NULL) |
9b409511 | 1443 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1444 | else |
1445 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1446 | correctness dcache_xfer_memory should take readbuf and | |
1447 | writebuf. */ | |
9b409511 | 1448 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1449 | reg_len, 1); |
9b409511 YQ |
1450 | if (l <= 0) |
1451 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1452 | else |
9b409511 YQ |
1453 | { |
1454 | *xfered_len = (ULONGEST) l; | |
1455 | return TARGET_XFER_OK; | |
1456 | } | |
cf7a04e8 DJ |
1457 | } |
1458 | ||
1459 | /* If none of those methods found the memory we wanted, fall back | |
1460 | to a target partial transfer. Normally a single call to | |
1461 | to_xfer_partial is enough; if it doesn't recognize an object | |
1462 | it will call the to_xfer_partial of the next target down. | |
1463 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1464 | object which can be read from more than one valid target. |
1465 | A core file, for instance, could have some of memory but | |
1466 | delegate other bits to the target below it. So, we must | |
1467 | manually try all targets. */ | |
1468 | ||
1469 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1470 | xfered_len); | |
cf7a04e8 | 1471 | |
41dcd03f DE |
1472 | /* Make sure the cache gets updated no matter what - if we are writing |
1473 | to the stack. Even if this write is not tagged as such, we still need | |
1474 | to update the cache. */ | |
1475 | ||
9b409511 | 1476 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1477 | && inf != NULL |
1478 | && writebuf != NULL | |
f2de9785 | 1479 | && target_dcache_init_p () |
41dcd03f | 1480 | && !region->attrib.cache |
29453a14 YQ |
1481 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1482 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1483 | { |
f2de9785 | 1484 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1485 | |
9b409511 | 1486 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1487 | } |
1488 | ||
cf7a04e8 DJ |
1489 | /* If we still haven't got anything, return the last error. We |
1490 | give up. */ | |
1491 | return res; | |
0779438d AC |
1492 | } |
1493 | ||
f0ba3972 PA |
1494 | /* Perform a partial memory transfer. For docs see target.h, |
1495 | to_xfer_partial. */ | |
1496 | ||
9b409511 | 1497 | static enum target_xfer_status |
f0ba3972 | 1498 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1499 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1500 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1501 | { |
9b409511 | 1502 | enum target_xfer_status res; |
f0ba3972 PA |
1503 | |
1504 | /* Zero length requests are ok and require no work. */ | |
1505 | if (len == 0) | |
9b409511 | 1506 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1507 | |
1508 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1509 | breakpoint insns, thus hiding out from higher layers whether | |
1510 | there are software breakpoints inserted in the code stream. */ | |
1511 | if (readbuf != NULL) | |
1512 | { | |
9b409511 YQ |
1513 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1514 | xfered_len); | |
f0ba3972 | 1515 | |
9b409511 | 1516 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1517 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1518 | } | |
1519 | else | |
1520 | { | |
1521 | void *buf; | |
1522 | struct cleanup *old_chain; | |
1523 | ||
67c059c2 AB |
1524 | /* A large write request is likely to be partially satisfied |
1525 | by memory_xfer_partial_1. We will continually malloc | |
1526 | and free a copy of the entire write request for breakpoint | |
1527 | shadow handling even though we only end up writing a small | |
1528 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1529 | len = min (4096, len); | |
1530 | ||
f0ba3972 PA |
1531 | buf = xmalloc (len); |
1532 | old_chain = make_cleanup (xfree, buf); | |
1533 | memcpy (buf, writebuf, len); | |
1534 | ||
1535 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1536 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1537 | xfered_len); | |
f0ba3972 PA |
1538 | |
1539 | do_cleanups (old_chain); | |
1540 | } | |
1541 | ||
1542 | return res; | |
1543 | } | |
1544 | ||
8defab1a DJ |
1545 | static void |
1546 | restore_show_memory_breakpoints (void *arg) | |
1547 | { | |
1548 | show_memory_breakpoints = (uintptr_t) arg; | |
1549 | } | |
1550 | ||
1551 | struct cleanup * | |
1552 | make_show_memory_breakpoints_cleanup (int show) | |
1553 | { | |
1554 | int current = show_memory_breakpoints; | |
8defab1a | 1555 | |
5d502164 | 1556 | show_memory_breakpoints = show; |
8defab1a DJ |
1557 | return make_cleanup (restore_show_memory_breakpoints, |
1558 | (void *) (uintptr_t) current); | |
1559 | } | |
1560 | ||
7f79c47e DE |
1561 | /* For docs see target.h, to_xfer_partial. */ |
1562 | ||
9b409511 | 1563 | enum target_xfer_status |
27394598 AC |
1564 | target_xfer_partial (struct target_ops *ops, |
1565 | enum target_object object, const char *annex, | |
4ac248ca | 1566 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1567 | ULONGEST offset, ULONGEST len, |
1568 | ULONGEST *xfered_len) | |
27394598 | 1569 | { |
9b409511 | 1570 | enum target_xfer_status retval; |
27394598 AC |
1571 | |
1572 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1573 | |
ce6d0892 YQ |
1574 | /* Transfer is done when LEN is zero. */ |
1575 | if (len == 0) | |
9b409511 | 1576 | return TARGET_XFER_EOF; |
ce6d0892 | 1577 | |
d914c394 SS |
1578 | if (writebuf && !may_write_memory) |
1579 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1580 | core_addr_to_string_nz (offset), plongest (len)); | |
1581 | ||
9b409511 YQ |
1582 | *xfered_len = 0; |
1583 | ||
cf7a04e8 DJ |
1584 | /* If this is a memory transfer, let the memory-specific code |
1585 | have a look at it instead. Memory transfers are more | |
1586 | complicated. */ | |
29453a14 YQ |
1587 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1588 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1589 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1590 | writebuf, offset, len, xfered_len); |
9f713294 | 1591 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1592 | { |
9f713294 | 1593 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1594 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1595 | xfered_len); | |
cf7a04e8 | 1596 | } |
9f713294 YQ |
1597 | else |
1598 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1599 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1600 | |
27394598 AC |
1601 | if (targetdebug) |
1602 | { | |
1603 | const unsigned char *myaddr = NULL; | |
1604 | ||
1605 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1606 | "%s:target_xfer_partial " |
9b409511 | 1607 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1608 | ops->to_shortname, |
1609 | (int) object, | |
1610 | (annex ? annex : "(null)"), | |
53b71562 JB |
1611 | host_address_to_string (readbuf), |
1612 | host_address_to_string (writebuf), | |
0b1553bc | 1613 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1614 | pulongest (len), retval, |
1615 | pulongest (*xfered_len)); | |
27394598 AC |
1616 | |
1617 | if (readbuf) | |
1618 | myaddr = readbuf; | |
1619 | if (writebuf) | |
1620 | myaddr = writebuf; | |
9b409511 | 1621 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1622 | { |
1623 | int i; | |
2bc416ba | 1624 | |
27394598 | 1625 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1626 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1627 | { |
53b71562 | 1628 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1629 | { |
1630 | if (targetdebug < 2 && i > 0) | |
1631 | { | |
1632 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1633 | break; | |
1634 | } | |
1635 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1636 | } | |
2bc416ba | 1637 | |
27394598 AC |
1638 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1639 | } | |
1640 | } | |
2bc416ba | 1641 | |
27394598 AC |
1642 | fputc_unfiltered ('\n', gdb_stdlog); |
1643 | } | |
9b409511 YQ |
1644 | |
1645 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1646 | properly. Do assertion after printing debug messages, so that we | |
1647 | can find more clues on assertion failure from debugging messages. */ | |
1648 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1649 | gdb_assert (*xfered_len > 0); | |
1650 | ||
27394598 AC |
1651 | return retval; |
1652 | } | |
1653 | ||
578d3588 PA |
1654 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1655 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1656 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1657 | |
1658 | If an error occurs, no guarantee is made about the contents of the data at | |
1659 | MYADDR. In particular, the caller should not depend upon partial reads | |
1660 | filling the buffer with good data. There is no way for the caller to know | |
1661 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1662 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1663 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1664 | |
1665 | int | |
1b162304 | 1666 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1667 | { |
c35b1492 PA |
1668 | /* Dispatch to the topmost target, not the flattened current_target. |
1669 | Memory accesses check target->to_has_(all_)memory, and the | |
1670 | flattened target doesn't inherit those. */ | |
1671 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1672 | myaddr, memaddr, len) == len) |
1673 | return 0; | |
0779438d | 1674 | else |
578d3588 | 1675 | return TARGET_XFER_E_IO; |
c906108c SS |
1676 | } |
1677 | ||
aee4bf85 PA |
1678 | /* Like target_read_memory, but specify explicitly that this is a read |
1679 | from the target's raw memory. That is, this read bypasses the | |
1680 | dcache, breakpoint shadowing, etc. */ | |
1681 | ||
1682 | int | |
1683 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1684 | { | |
1685 | /* See comment in target_read_memory about why the request starts at | |
1686 | current_target.beneath. */ | |
1687 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1688 | myaddr, memaddr, len) == len) | |
1689 | return 0; | |
1690 | else | |
1691 | return TARGET_XFER_E_IO; | |
1692 | } | |
1693 | ||
4e5d721f DE |
1694 | /* Like target_read_memory, but specify explicitly that this is a read from |
1695 | the target's stack. This may trigger different cache behavior. */ | |
1696 | ||
1697 | int | |
45aa4659 | 1698 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1699 | { |
aee4bf85 PA |
1700 | /* See comment in target_read_memory about why the request starts at |
1701 | current_target.beneath. */ | |
4e5d721f DE |
1702 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1703 | myaddr, memaddr, len) == len) | |
1704 | return 0; | |
1705 | else | |
578d3588 | 1706 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1707 | } |
1708 | ||
29453a14 YQ |
1709 | /* Like target_read_memory, but specify explicitly that this is a read from |
1710 | the target's code. This may trigger different cache behavior. */ | |
1711 | ||
1712 | int | |
1713 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1714 | { | |
aee4bf85 PA |
1715 | /* See comment in target_read_memory about why the request starts at |
1716 | current_target.beneath. */ | |
29453a14 YQ |
1717 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1718 | myaddr, memaddr, len) == len) | |
1719 | return 0; | |
1720 | else | |
1721 | return TARGET_XFER_E_IO; | |
1722 | } | |
1723 | ||
7f79c47e | 1724 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1725 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1726 | error occurs. If an error occurs, no guarantee is made about how |
1727 | much data got written. Callers that can deal with partial writes | |
1728 | should call target_write. */ | |
7f79c47e | 1729 | |
c906108c | 1730 | int |
45aa4659 | 1731 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1732 | { |
aee4bf85 PA |
1733 | /* See comment in target_read_memory about why the request starts at |
1734 | current_target.beneath. */ | |
c35b1492 | 1735 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1736 | myaddr, memaddr, len) == len) |
1737 | return 0; | |
0779438d | 1738 | else |
578d3588 | 1739 | return TARGET_XFER_E_IO; |
c906108c | 1740 | } |
c5aa993b | 1741 | |
f0ba3972 | 1742 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1743 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1744 | if any error occurs. If an error occurs, no guarantee is made |
1745 | about how much data got written. Callers that can deal with | |
1746 | partial writes should call target_write. */ | |
f0ba3972 PA |
1747 | |
1748 | int | |
45aa4659 | 1749 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1750 | { |
aee4bf85 PA |
1751 | /* See comment in target_read_memory about why the request starts at |
1752 | current_target.beneath. */ | |
f0ba3972 PA |
1753 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1754 | myaddr, memaddr, len) == len) | |
1755 | return 0; | |
1756 | else | |
578d3588 | 1757 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1758 | } |
1759 | ||
fd79ecee DJ |
1760 | /* Fetch the target's memory map. */ |
1761 | ||
1762 | VEC(mem_region_s) * | |
1763 | target_memory_map (void) | |
1764 | { | |
1765 | VEC(mem_region_s) *result; | |
1766 | struct mem_region *last_one, *this_one; | |
1767 | int ix; | |
1768 | struct target_ops *t; | |
1769 | ||
1770 | if (targetdebug) | |
1771 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1772 | ||
1773 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1774 | if (t->to_memory_map != NULL) | |
1775 | break; | |
1776 | ||
1777 | if (t == NULL) | |
1778 | return NULL; | |
1779 | ||
1780 | result = t->to_memory_map (t); | |
1781 | if (result == NULL) | |
1782 | return NULL; | |
1783 | ||
1784 | qsort (VEC_address (mem_region_s, result), | |
1785 | VEC_length (mem_region_s, result), | |
1786 | sizeof (struct mem_region), mem_region_cmp); | |
1787 | ||
1788 | /* Check that regions do not overlap. Simultaneously assign | |
1789 | a numbering for the "mem" commands to use to refer to | |
1790 | each region. */ | |
1791 | last_one = NULL; | |
1792 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1793 | { | |
1794 | this_one->number = ix; | |
1795 | ||
1796 | if (last_one && last_one->hi > this_one->lo) | |
1797 | { | |
1798 | warning (_("Overlapping regions in memory map: ignoring")); | |
1799 | VEC_free (mem_region_s, result); | |
1800 | return NULL; | |
1801 | } | |
1802 | last_one = this_one; | |
1803 | } | |
1804 | ||
1805 | return result; | |
1806 | } | |
1807 | ||
a76d924d DJ |
1808 | void |
1809 | target_flash_erase (ULONGEST address, LONGEST length) | |
1810 | { | |
1811 | struct target_ops *t; | |
1812 | ||
1813 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1814 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1815 | { |
1816 | if (targetdebug) | |
1817 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1818 | hex_string (address), phex (length, 0)); | |
1819 | t->to_flash_erase (t, address, length); | |
1820 | return; | |
1821 | } | |
a76d924d DJ |
1822 | |
1823 | tcomplain (); | |
1824 | } | |
1825 | ||
1826 | void | |
1827 | target_flash_done (void) | |
1828 | { | |
1829 | struct target_ops *t; | |
1830 | ||
1831 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1832 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1833 | { |
1834 | if (targetdebug) | |
1835 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1836 | t->to_flash_done (t); | |
1837 | return; | |
1838 | } | |
a76d924d DJ |
1839 | |
1840 | tcomplain (); | |
1841 | } | |
1842 | ||
920d2a44 AC |
1843 | static void |
1844 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1845 | struct cmd_list_element *c, const char *value) | |
1846 | { | |
3e43a32a MS |
1847 | fprintf_filtered (file, |
1848 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1849 | value); |
1850 | } | |
3a11626d | 1851 | |
1e3ff5ad AC |
1852 | /* More generic transfers. */ |
1853 | ||
9b409511 | 1854 | static enum target_xfer_status |
8aa91c1e | 1855 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1856 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
1857 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
1858 | ULONGEST *xfered_len) | |
0088c768 AC |
1859 | { |
1860 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1861 | && ops->deprecated_xfer_memory != NULL) |
1862 | /* If available, fall back to the target's | |
1863 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1864 | { |
4b8a223f | 1865 | int xfered = -1; |
5d502164 | 1866 | |
0088c768 | 1867 | errno = 0; |
4b8a223f AC |
1868 | if (writebuf != NULL) |
1869 | { | |
1870 | void *buffer = xmalloc (len); | |
1871 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1872 | |
4b8a223f | 1873 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1874 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1875 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1876 | do_cleanups (cleanup); |
1877 | } | |
1878 | if (readbuf != NULL) | |
244e85c8 MS |
1879 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1880 | 0/*read*/, NULL, ops); | |
0088c768 | 1881 | if (xfered > 0) |
9b409511 YQ |
1882 | { |
1883 | *xfered_len = (ULONGEST) xfered; | |
1884 | return TARGET_XFER_E_IO; | |
1885 | } | |
0088c768 | 1886 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
1887 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1888 | ERRNO as one indication of an error. */ | |
9b409511 | 1889 | return TARGET_XFER_EOF; |
0088c768 | 1890 | else |
9b409511 | 1891 | return TARGET_XFER_E_IO; |
0088c768 | 1892 | } |
0088c768 | 1893 | else |
6b84065d TT |
1894 | { |
1895 | gdb_assert (ops->beneath != NULL); | |
1896 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1897 | readbuf, writebuf, offset, len, | |
1898 | xfered_len); | |
1899 | } | |
0088c768 AC |
1900 | } |
1901 | ||
7f79c47e | 1902 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1903 | |
9b409511 | 1904 | static enum target_xfer_status |
1e3ff5ad AC |
1905 | target_read_partial (struct target_ops *ops, |
1906 | enum target_object object, | |
1b0ba102 | 1907 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1908 | ULONGEST offset, ULONGEST len, |
1909 | ULONGEST *xfered_len) | |
1e3ff5ad | 1910 | { |
9b409511 YQ |
1911 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1912 | xfered_len); | |
1e3ff5ad AC |
1913 | } |
1914 | ||
8a55ffb0 | 1915 | static enum target_xfer_status |
1e3ff5ad AC |
1916 | target_write_partial (struct target_ops *ops, |
1917 | enum target_object object, | |
1b0ba102 | 1918 | const char *annex, const gdb_byte *buf, |
9b409511 | 1919 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1920 | { |
9b409511 YQ |
1921 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1922 | xfered_len); | |
1e3ff5ad AC |
1923 | } |
1924 | ||
1925 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1926 | |
1927 | /* For docs on target_read see target.h. */ | |
1928 | ||
1e3ff5ad AC |
1929 | LONGEST |
1930 | target_read (struct target_ops *ops, | |
1931 | enum target_object object, | |
1b0ba102 | 1932 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1933 | ULONGEST offset, LONGEST len) |
1934 | { | |
1935 | LONGEST xfered = 0; | |
5d502164 | 1936 | |
1e3ff5ad AC |
1937 | while (xfered < len) |
1938 | { | |
9b409511 YQ |
1939 | ULONGEST xfered_len; |
1940 | enum target_xfer_status status; | |
1941 | ||
1942 | status = target_read_partial (ops, object, annex, | |
1943 | (gdb_byte *) buf + xfered, | |
1944 | offset + xfered, len - xfered, | |
1945 | &xfered_len); | |
5d502164 | 1946 | |
1e3ff5ad | 1947 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1948 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1949 | return xfered; |
9b409511 YQ |
1950 | else if (status == TARGET_XFER_OK) |
1951 | { | |
1952 | xfered += xfered_len; | |
1953 | QUIT; | |
1954 | } | |
1955 | else | |
0088c768 | 1956 | return -1; |
9b409511 | 1957 | |
1e3ff5ad AC |
1958 | } |
1959 | return len; | |
1960 | } | |
1961 | ||
f1a507a1 JB |
1962 | /* Assuming that the entire [begin, end) range of memory cannot be |
1963 | read, try to read whatever subrange is possible to read. | |
1964 | ||
1965 | The function returns, in RESULT, either zero or one memory block. | |
1966 | If there's a readable subrange at the beginning, it is completely | |
1967 | read and returned. Any further readable subrange will not be read. | |
1968 | Otherwise, if there's a readable subrange at the end, it will be | |
1969 | completely read and returned. Any readable subranges before it | |
1970 | (obviously, not starting at the beginning), will be ignored. In | |
1971 | other cases -- either no readable subrange, or readable subrange(s) | |
1972 | that is neither at the beginning, or end, nothing is returned. | |
1973 | ||
1974 | The purpose of this function is to handle a read across a boundary | |
1975 | of accessible memory in a case when memory map is not available. | |
1976 | The above restrictions are fine for this case, but will give | |
1977 | incorrect results if the memory is 'patchy'. However, supporting | |
1978 | 'patchy' memory would require trying to read every single byte, | |
1979 | and it seems unacceptable solution. Explicit memory map is | |
1980 | recommended for this case -- and target_read_memory_robust will | |
1981 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1982 | |
1983 | static void | |
3e43a32a MS |
1984 | read_whatever_is_readable (struct target_ops *ops, |
1985 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1986 | VEC(memory_read_result_s) **result) |
d5086790 | 1987 | { |
f1a507a1 | 1988 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1989 | ULONGEST current_begin = begin; |
1990 | ULONGEST current_end = end; | |
1991 | int forward; | |
1992 | memory_read_result_s r; | |
9b409511 | 1993 | ULONGEST xfered_len; |
8dedea02 VP |
1994 | |
1995 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1996 | if (end - begin <= 1) | |
13b3fd9b MS |
1997 | { |
1998 | xfree (buf); | |
1999 | return; | |
2000 | } | |
8dedea02 VP |
2001 | |
2002 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2003 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2004 | at the boundary of accessible region. */ |
2005 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 2006 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
2007 | { |
2008 | forward = 1; | |
2009 | ++current_begin; | |
2010 | } | |
2011 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
2012 | buf + (end-begin) - 1, end - 1, 1, |
2013 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
2014 | { |
2015 | forward = 0; | |
2016 | --current_end; | |
2017 | } | |
2018 | else | |
2019 | { | |
13b3fd9b | 2020 | xfree (buf); |
8dedea02 VP |
2021 | return; |
2022 | } | |
2023 | ||
2024 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2025 | found to be not readable as a whole. | |
2026 | ||
2027 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2028 | so there's no point trying further. */ | |
2029 | while (current_end - current_begin > 1) | |
2030 | { | |
2031 | ULONGEST first_half_begin, first_half_end; | |
2032 | ULONGEST second_half_begin, second_half_end; | |
2033 | LONGEST xfer; | |
8dedea02 | 2034 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2035 | |
8dedea02 VP |
2036 | if (forward) |
2037 | { | |
2038 | first_half_begin = current_begin; | |
2039 | first_half_end = middle; | |
2040 | second_half_begin = middle; | |
2041 | second_half_end = current_end; | |
2042 | } | |
2043 | else | |
2044 | { | |
2045 | first_half_begin = middle; | |
2046 | first_half_end = current_end; | |
2047 | second_half_begin = current_begin; | |
2048 | second_half_end = middle; | |
2049 | } | |
2050 | ||
2051 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2052 | buf + (first_half_begin - begin), | |
2053 | first_half_begin, | |
2054 | first_half_end - first_half_begin); | |
2055 | ||
2056 | if (xfer == first_half_end - first_half_begin) | |
2057 | { | |
c378eb4e | 2058 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2059 | other half. */ |
8dedea02 VP |
2060 | current_begin = second_half_begin; |
2061 | current_end = second_half_end; | |
2062 | } | |
2063 | else | |
2064 | { | |
c378eb4e MS |
2065 | /* This half is not readable. Because we've tried one byte, we |
2066 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2067 | iteration to divide again and try to read. |
2068 | ||
2069 | We don't handle the other half, because this function only tries | |
2070 | to read a single readable subrange. */ | |
2071 | current_begin = first_half_begin; | |
2072 | current_end = first_half_end; | |
2073 | } | |
2074 | } | |
2075 | ||
2076 | if (forward) | |
2077 | { | |
2078 | /* The [begin, current_begin) range has been read. */ | |
2079 | r.begin = begin; | |
2080 | r.end = current_begin; | |
2081 | r.data = buf; | |
2082 | } | |
2083 | else | |
2084 | { | |
2085 | /* The [current_end, end) range has been read. */ | |
2086 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2087 | |
8dedea02 VP |
2088 | r.data = xmalloc (rlen); |
2089 | memcpy (r.data, buf + current_end - begin, rlen); | |
2090 | r.begin = current_end; | |
2091 | r.end = end; | |
2092 | xfree (buf); | |
2093 | } | |
2094 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2095 | } | |
2096 | ||
2097 | void | |
2098 | free_memory_read_result_vector (void *x) | |
2099 | { | |
2100 | VEC(memory_read_result_s) *v = x; | |
2101 | memory_read_result_s *current; | |
2102 | int ix; | |
2103 | ||
2104 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2105 | { | |
2106 | xfree (current->data); | |
2107 | } | |
2108 | VEC_free (memory_read_result_s, v); | |
2109 | } | |
2110 | ||
2111 | VEC(memory_read_result_s) * | |
2112 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2113 | { | |
2114 | VEC(memory_read_result_s) *result = 0; | |
2115 | ||
2116 | LONGEST xfered = 0; | |
d5086790 VP |
2117 | while (xfered < len) |
2118 | { | |
8dedea02 VP |
2119 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2120 | LONGEST rlen; | |
5d502164 | 2121 | |
8dedea02 VP |
2122 | /* If there is no explicit region, a fake one should be created. */ |
2123 | gdb_assert (region); | |
2124 | ||
2125 | if (region->hi == 0) | |
2126 | rlen = len - xfered; | |
2127 | else | |
2128 | rlen = region->hi - offset; | |
2129 | ||
2130 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2131 | { |
c378eb4e | 2132 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2133 | if the region is explicitly marked inaccessible, or |
2134 | 'inaccessible-by-default' is in effect. */ | |
2135 | xfered += rlen; | |
2136 | } | |
2137 | else | |
2138 | { | |
2139 | LONGEST to_read = min (len - xfered, rlen); | |
2140 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2141 | ||
2142 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2143 | (gdb_byte *) buffer, | |
2144 | offset + xfered, to_read); | |
2145 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2146 | if (xfer <= 0) |
d5086790 | 2147 | { |
c378eb4e | 2148 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2149 | some subrange. */ |
2150 | xfree (buffer); | |
3e43a32a MS |
2151 | read_whatever_is_readable (ops, offset + xfered, |
2152 | offset + xfered + to_read, &result); | |
8dedea02 | 2153 | xfered += to_read; |
d5086790 | 2154 | } |
8dedea02 VP |
2155 | else |
2156 | { | |
2157 | struct memory_read_result r; | |
2158 | r.data = buffer; | |
2159 | r.begin = offset + xfered; | |
2160 | r.end = r.begin + xfer; | |
2161 | VEC_safe_push (memory_read_result_s, result, &r); | |
2162 | xfered += xfer; | |
2163 | } | |
2164 | QUIT; | |
d5086790 | 2165 | } |
d5086790 | 2166 | } |
8dedea02 | 2167 | return result; |
d5086790 VP |
2168 | } |
2169 | ||
8dedea02 | 2170 | |
cf7a04e8 DJ |
2171 | /* An alternative to target_write with progress callbacks. */ |
2172 | ||
1e3ff5ad | 2173 | LONGEST |
cf7a04e8 DJ |
2174 | target_write_with_progress (struct target_ops *ops, |
2175 | enum target_object object, | |
2176 | const char *annex, const gdb_byte *buf, | |
2177 | ULONGEST offset, LONGEST len, | |
2178 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2179 | { |
2180 | LONGEST xfered = 0; | |
a76d924d DJ |
2181 | |
2182 | /* Give the progress callback a chance to set up. */ | |
2183 | if (progress) | |
2184 | (*progress) (0, baton); | |
2185 | ||
1e3ff5ad AC |
2186 | while (xfered < len) |
2187 | { | |
9b409511 YQ |
2188 | ULONGEST xfered_len; |
2189 | enum target_xfer_status status; | |
2190 | ||
2191 | status = target_write_partial (ops, object, annex, | |
2192 | (gdb_byte *) buf + xfered, | |
2193 | offset + xfered, len - xfered, | |
2194 | &xfered_len); | |
cf7a04e8 | 2195 | |
9b409511 | 2196 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2197 | return xfered; |
9b409511 | 2198 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2199 | return -1; |
cf7a04e8 | 2200 | |
9b409511 | 2201 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2202 | if (progress) |
9b409511 | 2203 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2204 | |
9b409511 | 2205 | xfered += xfered_len; |
1e3ff5ad AC |
2206 | QUIT; |
2207 | } | |
2208 | return len; | |
2209 | } | |
2210 | ||
7f79c47e DE |
2211 | /* For docs on target_write see target.h. */ |
2212 | ||
cf7a04e8 DJ |
2213 | LONGEST |
2214 | target_write (struct target_ops *ops, | |
2215 | enum target_object object, | |
2216 | const char *annex, const gdb_byte *buf, | |
2217 | ULONGEST offset, LONGEST len) | |
2218 | { | |
2219 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2220 | NULL, NULL); | |
2221 | } | |
2222 | ||
159f81f3 DJ |
2223 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2224 | the size of the transferred data. PADDING additional bytes are | |
2225 | available in *BUF_P. This is a helper function for | |
2226 | target_read_alloc; see the declaration of that function for more | |
2227 | information. */ | |
13547ab6 | 2228 | |
159f81f3 DJ |
2229 | static LONGEST |
2230 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2231 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2232 | { |
2233 | size_t buf_alloc, buf_pos; | |
2234 | gdb_byte *buf; | |
13547ab6 DJ |
2235 | |
2236 | /* This function does not have a length parameter; it reads the | |
2237 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2238 | from one target and partly from another (in a different stratum, | |
2239 | e.g. a core file and an executable). Both reasons make it | |
2240 | unsuitable for reading memory. */ | |
2241 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2242 | ||
2243 | /* Start by reading up to 4K at a time. The target will throttle | |
2244 | this number down if necessary. */ | |
2245 | buf_alloc = 4096; | |
2246 | buf = xmalloc (buf_alloc); | |
2247 | buf_pos = 0; | |
2248 | while (1) | |
2249 | { | |
9b409511 YQ |
2250 | ULONGEST xfered_len; |
2251 | enum target_xfer_status status; | |
2252 | ||
2253 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2254 | buf_pos, buf_alloc - buf_pos - padding, | |
2255 | &xfered_len); | |
2256 | ||
2257 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2258 | { |
2259 | /* Read all there was. */ | |
2260 | if (buf_pos == 0) | |
2261 | xfree (buf); | |
2262 | else | |
2263 | *buf_p = buf; | |
2264 | return buf_pos; | |
2265 | } | |
9b409511 YQ |
2266 | else if (status != TARGET_XFER_OK) |
2267 | { | |
2268 | /* An error occurred. */ | |
2269 | xfree (buf); | |
2270 | return TARGET_XFER_E_IO; | |
2271 | } | |
13547ab6 | 2272 | |
9b409511 | 2273 | buf_pos += xfered_len; |
13547ab6 DJ |
2274 | |
2275 | /* If the buffer is filling up, expand it. */ | |
2276 | if (buf_alloc < buf_pos * 2) | |
2277 | { | |
2278 | buf_alloc *= 2; | |
2279 | buf = xrealloc (buf, buf_alloc); | |
2280 | } | |
2281 | ||
2282 | QUIT; | |
2283 | } | |
2284 | } | |
2285 | ||
159f81f3 DJ |
2286 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2287 | the size of the transferred data. See the declaration in "target.h" | |
2288 | function for more information about the return value. */ | |
2289 | ||
2290 | LONGEST | |
2291 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2292 | const char *annex, gdb_byte **buf_p) | |
2293 | { | |
2294 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2295 | } | |
2296 | ||
2297 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2298 | returned as a string, allocated using xmalloc. If an error occurs | |
2299 | or the transfer is unsupported, NULL is returned. Empty objects | |
2300 | are returned as allocated but empty strings. A warning is issued | |
2301 | if the result contains any embedded NUL bytes. */ | |
2302 | ||
2303 | char * | |
2304 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2305 | const char *annex) | |
2306 | { | |
39086a0e PA |
2307 | gdb_byte *buffer; |
2308 | char *bufstr; | |
7313baad | 2309 | LONGEST i, transferred; |
159f81f3 | 2310 | |
39086a0e PA |
2311 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2312 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2313 | |
2314 | if (transferred < 0) | |
2315 | return NULL; | |
2316 | ||
2317 | if (transferred == 0) | |
2318 | return xstrdup (""); | |
2319 | ||
39086a0e | 2320 | bufstr[transferred] = 0; |
7313baad UW |
2321 | |
2322 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2323 | for (i = strlen (bufstr); i < transferred; i++) |
2324 | if (bufstr[i] != 0) | |
7313baad UW |
2325 | { |
2326 | warning (_("target object %d, annex %s, " | |
2327 | "contained unexpected null characters"), | |
2328 | (int) object, annex ? annex : "(none)"); | |
2329 | break; | |
2330 | } | |
159f81f3 | 2331 | |
39086a0e | 2332 | return bufstr; |
159f81f3 DJ |
2333 | } |
2334 | ||
b6591e8b AC |
2335 | /* Memory transfer methods. */ |
2336 | ||
2337 | void | |
1b0ba102 | 2338 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2339 | LONGEST len) |
2340 | { | |
07b82ea5 PA |
2341 | /* This method is used to read from an alternate, non-current |
2342 | target. This read must bypass the overlay support (as symbols | |
2343 | don't match this target), and GDB's internal cache (wrong cache | |
2344 | for this target). */ | |
2345 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2346 | != len) |
578d3588 | 2347 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2348 | } |
2349 | ||
2350 | ULONGEST | |
5d502164 MS |
2351 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2352 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2353 | { |
f6519ebc | 2354 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2355 | |
2356 | gdb_assert (len <= sizeof (buf)); | |
2357 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2358 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2359 | } |
2360 | ||
3db08215 MM |
2361 | /* See target.h. */ |
2362 | ||
d914c394 SS |
2363 | int |
2364 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2365 | struct bp_target_info *bp_tgt) | |
2366 | { | |
2367 | if (!may_insert_breakpoints) | |
2368 | { | |
2369 | warning (_("May not insert breakpoints")); | |
2370 | return 1; | |
2371 | } | |
2372 | ||
6b84065d TT |
2373 | return current_target.to_insert_breakpoint (¤t_target, |
2374 | gdbarch, bp_tgt); | |
d914c394 SS |
2375 | } |
2376 | ||
3db08215 MM |
2377 | /* See target.h. */ |
2378 | ||
d914c394 | 2379 | int |
6b84065d TT |
2380 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2381 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2382 | { |
2383 | /* This is kind of a weird case to handle, but the permission might | |
2384 | have been changed after breakpoints were inserted - in which case | |
2385 | we should just take the user literally and assume that any | |
2386 | breakpoints should be left in place. */ | |
2387 | if (!may_insert_breakpoints) | |
2388 | { | |
2389 | warning (_("May not remove breakpoints")); | |
2390 | return 1; | |
2391 | } | |
2392 | ||
6b84065d TT |
2393 | return current_target.to_remove_breakpoint (¤t_target, |
2394 | gdbarch, bp_tgt); | |
d914c394 SS |
2395 | } |
2396 | ||
c906108c | 2397 | static void |
fba45db2 | 2398 | target_info (char *args, int from_tty) |
c906108c SS |
2399 | { |
2400 | struct target_ops *t; | |
c906108c | 2401 | int has_all_mem = 0; |
c5aa993b | 2402 | |
c906108c | 2403 | if (symfile_objfile != NULL) |
4262abfb JK |
2404 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2405 | objfile_name (symfile_objfile)); | |
c906108c | 2406 | |
258b763a | 2407 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2408 | { |
c35b1492 | 2409 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2410 | continue; |
2411 | ||
c5aa993b | 2412 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2413 | continue; |
2414 | if (has_all_mem) | |
3e43a32a MS |
2415 | printf_unfiltered (_("\tWhile running this, " |
2416 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2417 | printf_unfiltered ("%s:\n", t->to_longname); |
2418 | (t->to_files_info) (t); | |
c35b1492 | 2419 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2420 | } |
2421 | } | |
2422 | ||
fd79ecee DJ |
2423 | /* This function is called before any new inferior is created, e.g. |
2424 | by running a program, attaching, or connecting to a target. | |
2425 | It cleans up any state from previous invocations which might | |
2426 | change between runs. This is a subset of what target_preopen | |
2427 | resets (things which might change between targets). */ | |
2428 | ||
2429 | void | |
2430 | target_pre_inferior (int from_tty) | |
2431 | { | |
c378eb4e | 2432 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2433 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2434 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2435 | to reproduce: |
2436 | ||
2437 | bash$ ./foo& | |
2438 | [1] 4711 | |
2439 | bash$ ./foo& | |
2440 | [1] 4712 | |
2441 | bash$ gdb ./foo | |
2442 | [...] | |
2443 | (gdb) attach 4711 | |
2444 | (gdb) detach | |
2445 | (gdb) attach 4712 | |
2446 | Cannot access memory at address 0xdeadbeef | |
2447 | */ | |
b9db4ced | 2448 | |
50c71eaf PA |
2449 | /* In some OSs, the shared library list is the same/global/shared |
2450 | across inferiors. If code is shared between processes, so are | |
2451 | memory regions and features. */ | |
f5656ead | 2452 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2453 | { |
2454 | no_shared_libraries (NULL, from_tty); | |
2455 | ||
2456 | invalidate_target_mem_regions (); | |
424163ea | 2457 | |
50c71eaf PA |
2458 | target_clear_description (); |
2459 | } | |
8ffcbaaf YQ |
2460 | |
2461 | agent_capability_invalidate (); | |
fd79ecee DJ |
2462 | } |
2463 | ||
b8fa0bfa PA |
2464 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2465 | inferior. */ | |
2466 | ||
2467 | static int | |
2468 | dispose_inferior (struct inferior *inf, void *args) | |
2469 | { | |
2470 | struct thread_info *thread; | |
2471 | ||
2472 | thread = any_thread_of_process (inf->pid); | |
2473 | if (thread) | |
2474 | { | |
2475 | switch_to_thread (thread->ptid); | |
2476 | ||
2477 | /* Core inferiors actually should be detached, not killed. */ | |
2478 | if (target_has_execution) | |
2479 | target_kill (); | |
2480 | else | |
2481 | target_detach (NULL, 0); | |
2482 | } | |
2483 | ||
2484 | return 0; | |
2485 | } | |
2486 | ||
c906108c SS |
2487 | /* This is to be called by the open routine before it does |
2488 | anything. */ | |
2489 | ||
2490 | void | |
fba45db2 | 2491 | target_preopen (int from_tty) |
c906108c | 2492 | { |
c5aa993b | 2493 | dont_repeat (); |
c906108c | 2494 | |
b8fa0bfa | 2495 | if (have_inferiors ()) |
c5aa993b | 2496 | { |
adf40b2e | 2497 | if (!from_tty |
b8fa0bfa PA |
2498 | || !have_live_inferiors () |
2499 | || query (_("A program is being debugged already. Kill it? "))) | |
2500 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2501 | else |
8a3fe4f8 | 2502 | error (_("Program not killed.")); |
c906108c SS |
2503 | } |
2504 | ||
2505 | /* Calling target_kill may remove the target from the stack. But if | |
2506 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2507 | /* Leave the exec target, though. The user may be switching from a |
2508 | live process to a core of the same program. */ | |
460014f5 | 2509 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2510 | |
2511 | target_pre_inferior (from_tty); | |
c906108c SS |
2512 | } |
2513 | ||
2514 | /* Detach a target after doing deferred register stores. */ | |
2515 | ||
2516 | void | |
52554a0e | 2517 | target_detach (const char *args, int from_tty) |
c906108c | 2518 | { |
136d6dae VP |
2519 | struct target_ops* t; |
2520 | ||
f5656ead | 2521 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2522 | /* Don't remove global breakpoints here. They're removed on |
2523 | disconnection from the target. */ | |
2524 | ; | |
2525 | else | |
2526 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2527 | them before detaching. */ | |
dfd4cc63 | 2528 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2529 | |
24291992 PA |
2530 | prepare_for_detach (); |
2531 | ||
09da0d0a TT |
2532 | current_target.to_detach (¤t_target, args, from_tty); |
2533 | if (targetdebug) | |
2534 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2535 | args, from_tty); | |
c906108c SS |
2536 | } |
2537 | ||
6ad8ae5c DJ |
2538 | void |
2539 | target_disconnect (char *args, int from_tty) | |
2540 | { | |
597320e7 DJ |
2541 | struct target_ops *t; |
2542 | ||
50c71eaf PA |
2543 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2544 | are global across processes, we have to remove them before | |
2545 | disconnecting. */ | |
74960c60 VP |
2546 | remove_breakpoints (); |
2547 | ||
597320e7 DJ |
2548 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2549 | if (t->to_disconnect != NULL) | |
2550 | { | |
2551 | if (targetdebug) | |
2552 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2553 | args, from_tty); | |
2554 | t->to_disconnect (t, args, from_tty); | |
2555 | return; | |
2556 | } | |
2557 | ||
2558 | tcomplain (); | |
6ad8ae5c DJ |
2559 | } |
2560 | ||
117de6a9 | 2561 | ptid_t |
47608cb1 | 2562 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2563 | { |
2564 | struct target_ops *t; | |
6b84065d TT |
2565 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2566 | status, options); | |
117de6a9 | 2567 | |
6b84065d | 2568 | if (targetdebug) |
117de6a9 | 2569 | { |
6b84065d TT |
2570 | char *status_string; |
2571 | char *options_string; | |
117de6a9 | 2572 | |
6b84065d TT |
2573 | status_string = target_waitstatus_to_string (status); |
2574 | options_string = target_options_to_string (options); | |
2575 | fprintf_unfiltered (gdb_stdlog, | |
2576 | "target_wait (%d, status, options={%s})" | |
2577 | " = %d, %s\n", | |
2578 | ptid_get_pid (ptid), options_string, | |
2579 | ptid_get_pid (retval), status_string); | |
2580 | xfree (status_string); | |
2581 | xfree (options_string); | |
117de6a9 PA |
2582 | } |
2583 | ||
6b84065d | 2584 | return retval; |
117de6a9 PA |
2585 | } |
2586 | ||
2587 | char * | |
2588 | target_pid_to_str (ptid_t ptid) | |
2589 | { | |
2590 | struct target_ops *t; | |
2591 | ||
2592 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2593 | { | |
2594 | if (t->to_pid_to_str != NULL) | |
2595 | return (*t->to_pid_to_str) (t, ptid); | |
2596 | } | |
2597 | ||
2598 | return normal_pid_to_str (ptid); | |
2599 | } | |
2600 | ||
4694da01 TT |
2601 | char * |
2602 | target_thread_name (struct thread_info *info) | |
2603 | { | |
825828fc | 2604 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2605 | } |
2606 | ||
e1ac3328 | 2607 | void |
2ea28649 | 2608 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2609 | { |
28439f5e PA |
2610 | struct target_ops *t; |
2611 | ||
4e5d721f | 2612 | target_dcache_invalidate (); |
28439f5e | 2613 | |
6b84065d TT |
2614 | current_target.to_resume (¤t_target, ptid, step, signal); |
2615 | if (targetdebug) | |
2616 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2617 | ptid_get_pid (ptid), | |
2618 | step ? "step" : "continue", | |
2619 | gdb_signal_to_name (signal)); | |
28439f5e | 2620 | |
6b84065d TT |
2621 | registers_changed_ptid (ptid); |
2622 | set_executing (ptid, 1); | |
2623 | set_running (ptid, 1); | |
2624 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2625 | } |
2455069d UW |
2626 | |
2627 | void | |
2628 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2629 | { | |
2630 | struct target_ops *t; | |
2631 | ||
2632 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2633 | { | |
2634 | if (t->to_pass_signals != NULL) | |
2635 | { | |
2636 | if (targetdebug) | |
2637 | { | |
2638 | int i; | |
2639 | ||
2640 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2641 | numsigs); | |
2642 | ||
2643 | for (i = 0; i < numsigs; i++) | |
2644 | if (pass_signals[i]) | |
2645 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2646 | gdb_signal_to_name (i)); |
2455069d UW |
2647 | |
2648 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2649 | } | |
2650 | ||
94bedb42 | 2651 | (*t->to_pass_signals) (t, numsigs, pass_signals); |
2455069d UW |
2652 | return; |
2653 | } | |
2654 | } | |
2655 | } | |
2656 | ||
9b224c5e PA |
2657 | void |
2658 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2659 | { | |
2660 | struct target_ops *t; | |
2661 | ||
2662 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2663 | { | |
2664 | if (t->to_program_signals != NULL) | |
2665 | { | |
2666 | if (targetdebug) | |
2667 | { | |
2668 | int i; | |
2669 | ||
2670 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2671 | numsigs); | |
2672 | ||
2673 | for (i = 0; i < numsigs; i++) | |
2674 | if (program_signals[i]) | |
2675 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2676 | gdb_signal_to_name (i)); |
9b224c5e PA |
2677 | |
2678 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2679 | } | |
2680 | ||
daf5e9b6 | 2681 | (*t->to_program_signals) (t, numsigs, program_signals); |
9b224c5e PA |
2682 | return; |
2683 | } | |
2684 | } | |
2685 | } | |
2686 | ||
ee057212 DJ |
2687 | /* Look through the list of possible targets for a target that can |
2688 | follow forks. */ | |
2689 | ||
2690 | int | |
07107ca6 | 2691 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2692 | { |
2693 | struct target_ops *t; | |
2694 | ||
2695 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2696 | { | |
2697 | if (t->to_follow_fork != NULL) | |
2698 | { | |
07107ca6 | 2699 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2700 | |
ee057212 | 2701 | if (targetdebug) |
07107ca6 LM |
2702 | fprintf_unfiltered (gdb_stdlog, |
2703 | "target_follow_fork (%d, %d) = %d\n", | |
2704 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2705 | return retval; |
2706 | } | |
2707 | } | |
2708 | ||
2709 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2710 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2711 | _("could not find a target to follow fork")); |
ee057212 DJ |
2712 | } |
2713 | ||
136d6dae VP |
2714 | void |
2715 | target_mourn_inferior (void) | |
2716 | { | |
2717 | struct target_ops *t; | |
5d502164 | 2718 | |
136d6dae VP |
2719 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2720 | { | |
2721 | if (t->to_mourn_inferior != NULL) | |
2722 | { | |
2723 | t->to_mourn_inferior (t); | |
947b8855 PA |
2724 | if (targetdebug) |
2725 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2726 | |
2727 | /* We no longer need to keep handles on any of the object files. | |
2728 | Make sure to release them to avoid unnecessarily locking any | |
2729 | of them while we're not actually debugging. */ | |
2730 | bfd_cache_close_all (); | |
2731 | ||
136d6dae VP |
2732 | return; |
2733 | } | |
2734 | } | |
2735 | ||
2736 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2737 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2738 | } |
2739 | ||
424163ea DJ |
2740 | /* Look for a target which can describe architectural features, starting |
2741 | from TARGET. If we find one, return its description. */ | |
2742 | ||
2743 | const struct target_desc * | |
2744 | target_read_description (struct target_ops *target) | |
2745 | { | |
2746 | struct target_ops *t; | |
2747 | ||
2748 | for (t = target; t != NULL; t = t->beneath) | |
2749 | if (t->to_read_description != NULL) | |
2750 | { | |
2751 | const struct target_desc *tdesc; | |
2752 | ||
2753 | tdesc = t->to_read_description (t); | |
2754 | if (tdesc) | |
2755 | return tdesc; | |
2756 | } | |
2757 | ||
2758 | return NULL; | |
2759 | } | |
2760 | ||
08388c79 DE |
2761 | /* The default implementation of to_search_memory. |
2762 | This implements a basic search of memory, reading target memory and | |
2763 | performing the search here (as opposed to performing the search in on the | |
2764 | target side with, for example, gdbserver). */ | |
2765 | ||
2766 | int | |
2767 | simple_search_memory (struct target_ops *ops, | |
2768 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2769 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2770 | CORE_ADDR *found_addrp) | |
2771 | { | |
2772 | /* NOTE: also defined in find.c testcase. */ | |
2773 | #define SEARCH_CHUNK_SIZE 16000 | |
2774 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2775 | /* Buffer to hold memory contents for searching. */ | |
2776 | gdb_byte *search_buf; | |
2777 | unsigned search_buf_size; | |
2778 | struct cleanup *old_cleanups; | |
2779 | ||
2780 | search_buf_size = chunk_size + pattern_len - 1; | |
2781 | ||
2782 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2783 | if (search_space_len < search_buf_size) | |
2784 | search_buf_size = search_space_len; | |
2785 | ||
2786 | search_buf = malloc (search_buf_size); | |
2787 | if (search_buf == NULL) | |
5e1471f5 | 2788 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2789 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2790 | ||
2791 | /* Prime the search buffer. */ | |
2792 | ||
2793 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2794 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2795 | { | |
b3dc46ff AB |
2796 | warning (_("Unable to access %s bytes of target " |
2797 | "memory at %s, halting search."), | |
2798 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2799 | do_cleanups (old_cleanups); |
2800 | return -1; | |
2801 | } | |
2802 | ||
2803 | /* Perform the search. | |
2804 | ||
2805 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2806 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2807 | read in another N bytes. */ | |
2808 | ||
2809 | while (search_space_len >= pattern_len) | |
2810 | { | |
2811 | gdb_byte *found_ptr; | |
2812 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2813 | ||
2814 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2815 | pattern, pattern_len); | |
2816 | ||
2817 | if (found_ptr != NULL) | |
2818 | { | |
2819 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2820 | |
08388c79 DE |
2821 | *found_addrp = found_addr; |
2822 | do_cleanups (old_cleanups); | |
2823 | return 1; | |
2824 | } | |
2825 | ||
2826 | /* Not found in this chunk, skip to next chunk. */ | |
2827 | ||
2828 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2829 | if (search_space_len >= chunk_size) | |
2830 | search_space_len -= chunk_size; | |
2831 | else | |
2832 | search_space_len = 0; | |
2833 | ||
2834 | if (search_space_len >= pattern_len) | |
2835 | { | |
2836 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2837 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2838 | int nr_to_read; |
2839 | ||
2840 | /* Copy the trailing part of the previous iteration to the front | |
2841 | of the buffer for the next iteration. */ | |
2842 | gdb_assert (keep_len == pattern_len - 1); | |
2843 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2844 | ||
2845 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2846 | ||
2847 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2848 | search_buf + keep_len, read_addr, | |
2849 | nr_to_read) != nr_to_read) | |
2850 | { | |
b3dc46ff | 2851 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2852 | "memory at %s, halting search."), |
b3dc46ff | 2853 | plongest (nr_to_read), |
08388c79 DE |
2854 | hex_string (read_addr)); |
2855 | do_cleanups (old_cleanups); | |
2856 | return -1; | |
2857 | } | |
2858 | ||
2859 | start_addr += chunk_size; | |
2860 | } | |
2861 | } | |
2862 | ||
2863 | /* Not found. */ | |
2864 | ||
2865 | do_cleanups (old_cleanups); | |
2866 | return 0; | |
2867 | } | |
2868 | ||
2869 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2870 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2871 | ||
2872 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2873 | requiring halting of the search (e.g. memory read error). | |
2874 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2875 | ||
2876 | int | |
2877 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2878 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2879 | CORE_ADDR *found_addrp) | |
2880 | { | |
2881 | struct target_ops *t; | |
2882 | int found; | |
2883 | ||
2884 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2885 | so we have to scan the target stack and handle targetdebug | |
2886 | ourselves. */ | |
2887 | ||
2888 | if (targetdebug) | |
2889 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2890 | hex_string (start_addr)); | |
2891 | ||
2892 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2893 | if (t->to_search_memory != NULL) | |
2894 | break; | |
2895 | ||
2896 | if (t != NULL) | |
2897 | { | |
2898 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2899 | pattern, pattern_len, found_addrp); | |
2900 | } | |
2901 | else | |
2902 | { | |
2903 | /* If a special version of to_search_memory isn't available, use the | |
2904 | simple version. */ | |
c35b1492 | 2905 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2906 | start_addr, search_space_len, |
2907 | pattern, pattern_len, found_addrp); | |
2908 | } | |
2909 | ||
2910 | if (targetdebug) | |
2911 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2912 | ||
2913 | return found; | |
2914 | } | |
2915 | ||
8edfe269 DJ |
2916 | /* Look through the currently pushed targets. If none of them will |
2917 | be able to restart the currently running process, issue an error | |
2918 | message. */ | |
2919 | ||
2920 | void | |
2921 | target_require_runnable (void) | |
2922 | { | |
2923 | struct target_ops *t; | |
2924 | ||
2925 | for (t = target_stack; t != NULL; t = t->beneath) | |
2926 | { | |
2927 | /* If this target knows how to create a new program, then | |
2928 | assume we will still be able to after killing the current | |
2929 | one. Either killing and mourning will not pop T, or else | |
2930 | find_default_run_target will find it again. */ | |
2931 | if (t->to_create_inferior != NULL) | |
2932 | return; | |
2933 | ||
2934 | /* Do not worry about thread_stratum targets that can not | |
2935 | create inferiors. Assume they will be pushed again if | |
2936 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2937 | if (t->to_stratum == thread_stratum |
2938 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2939 | continue; |
2940 | ||
3e43a32a MS |
2941 | error (_("The \"%s\" target does not support \"run\". " |
2942 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2943 | t->to_shortname); |
2944 | } | |
2945 | ||
2946 | /* This function is only called if the target is running. In that | |
2947 | case there should have been a process_stratum target and it | |
c378eb4e | 2948 | should either know how to create inferiors, or not... */ |
9b20d036 | 2949 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2950 | } |
2951 | ||
c906108c SS |
2952 | /* Look through the list of possible targets for a target that can |
2953 | execute a run or attach command without any other data. This is | |
2954 | used to locate the default process stratum. | |
2955 | ||
5f667f2d PA |
2956 | If DO_MESG is not NULL, the result is always valid (error() is |
2957 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2958 | |
2959 | static struct target_ops * | |
fba45db2 | 2960 | find_default_run_target (char *do_mesg) |
c906108c SS |
2961 | { |
2962 | struct target_ops **t; | |
2963 | struct target_ops *runable = NULL; | |
2964 | int count; | |
2965 | ||
2966 | count = 0; | |
2967 | ||
2968 | for (t = target_structs; t < target_structs + target_struct_size; | |
2969 | ++t) | |
2970 | { | |
c5aa993b | 2971 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2972 | { |
2973 | runable = *t; | |
2974 | ++count; | |
2975 | } | |
2976 | } | |
2977 | ||
2978 | if (count != 1) | |
5f667f2d PA |
2979 | { |
2980 | if (do_mesg) | |
2981 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2982 | else | |
2983 | return NULL; | |
2984 | } | |
c906108c SS |
2985 | |
2986 | return runable; | |
2987 | } | |
2988 | ||
2989 | void | |
136d6dae | 2990 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2991 | { |
2992 | struct target_ops *t; | |
2993 | ||
c5aa993b | 2994 | t = find_default_run_target ("attach"); |
136d6dae | 2995 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2996 | return; |
2997 | } | |
2998 | ||
c906108c | 2999 | void |
136d6dae VP |
3000 | find_default_create_inferior (struct target_ops *ops, |
3001 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3002 | int from_tty) |
c906108c SS |
3003 | { |
3004 | struct target_ops *t; | |
3005 | ||
c5aa993b | 3006 | t = find_default_run_target ("run"); |
136d6dae | 3007 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3008 | return; |
3009 | } | |
3010 | ||
2c0b251b | 3011 | static int |
6a109b6b | 3012 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
3013 | { |
3014 | struct target_ops *t; | |
3015 | ||
5f667f2d PA |
3016 | /* This may be called before the target is pushed on the stack; |
3017 | look for the default process stratum. If there's none, gdb isn't | |
3018 | configured with a native debugger, and target remote isn't | |
3019 | connected yet. */ | |
3020 | t = find_default_run_target (NULL); | |
6b84065d | 3021 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 3022 | return (t->to_can_async_p) (t); |
b84876c2 PA |
3023 | return 0; |
3024 | } | |
3025 | ||
2c0b251b | 3026 | static int |
6a109b6b | 3027 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
3028 | { |
3029 | struct target_ops *t; | |
3030 | ||
5f667f2d PA |
3031 | /* This may be called before the target is pushed on the stack; |
3032 | look for the default process stratum. If there's none, gdb isn't | |
3033 | configured with a native debugger, and target remote isn't | |
3034 | connected yet. */ | |
3035 | t = find_default_run_target (NULL); | |
6b84065d | 3036 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 3037 | return (t->to_is_async_p) (t); |
b84876c2 PA |
3038 | return 0; |
3039 | } | |
3040 | ||
2c0b251b | 3041 | static int |
2a9a2795 | 3042 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
3043 | { |
3044 | struct target_ops *t; | |
3045 | ||
3046 | t = find_default_run_target (NULL); | |
3047 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 3048 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
3049 | return 0; |
3050 | } | |
3051 | ||
3052 | int | |
2c0b251b | 3053 | target_supports_non_stop (void) |
9908b566 VP |
3054 | { |
3055 | struct target_ops *t; | |
5d502164 | 3056 | |
9908b566 VP |
3057 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3058 | if (t->to_supports_non_stop) | |
2a9a2795 | 3059 | return t->to_supports_non_stop (t); |
9908b566 VP |
3060 | |
3061 | return 0; | |
3062 | } | |
3063 | ||
145b16a9 UW |
3064 | /* Implement the "info proc" command. */ |
3065 | ||
451b7c33 | 3066 | int |
145b16a9 UW |
3067 | target_info_proc (char *args, enum info_proc_what what) |
3068 | { | |
3069 | struct target_ops *t; | |
3070 | ||
3071 | /* If we're already connected to something that can get us OS | |
3072 | related data, use it. Otherwise, try using the native | |
3073 | target. */ | |
3074 | if (current_target.to_stratum >= process_stratum) | |
3075 | t = current_target.beneath; | |
3076 | else | |
3077 | t = find_default_run_target (NULL); | |
3078 | ||
3079 | for (; t != NULL; t = t->beneath) | |
3080 | { | |
3081 | if (t->to_info_proc != NULL) | |
3082 | { | |
3083 | t->to_info_proc (t, args, what); | |
3084 | ||
3085 | if (targetdebug) | |
3086 | fprintf_unfiltered (gdb_stdlog, | |
3087 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3088 | ||
451b7c33 | 3089 | return 1; |
145b16a9 UW |
3090 | } |
3091 | } | |
3092 | ||
451b7c33 | 3093 | return 0; |
145b16a9 UW |
3094 | } |
3095 | ||
03583c20 | 3096 | static int |
2bfc0540 | 3097 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
3098 | { |
3099 | struct target_ops *t; | |
3100 | ||
3101 | t = find_default_run_target (NULL); | |
3102 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 3103 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
3104 | return 0; |
3105 | } | |
3106 | ||
3107 | int | |
3108 | target_supports_disable_randomization (void) | |
3109 | { | |
3110 | struct target_ops *t; | |
3111 | ||
3112 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3113 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 3114 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
3115 | |
3116 | return 0; | |
3117 | } | |
9908b566 | 3118 | |
07e059b5 VP |
3119 | char * |
3120 | target_get_osdata (const char *type) | |
3121 | { | |
07e059b5 VP |
3122 | struct target_ops *t; |
3123 | ||
739ef7fb PA |
3124 | /* If we're already connected to something that can get us OS |
3125 | related data, use it. Otherwise, try using the native | |
3126 | target. */ | |
3127 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3128 | t = current_target.beneath; |
739ef7fb PA |
3129 | else |
3130 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3131 | |
3132 | if (!t) | |
3133 | return NULL; | |
3134 | ||
6d097e65 | 3135 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3136 | } |
3137 | ||
6c95b8df PA |
3138 | /* Determine the current address space of thread PTID. */ |
3139 | ||
3140 | struct address_space * | |
3141 | target_thread_address_space (ptid_t ptid) | |
3142 | { | |
c0694254 | 3143 | struct address_space *aspace; |
6c95b8df | 3144 | struct inferior *inf; |
c0694254 PA |
3145 | struct target_ops *t; |
3146 | ||
3147 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3148 | { | |
3149 | if (t->to_thread_address_space != NULL) | |
3150 | { | |
3151 | aspace = t->to_thread_address_space (t, ptid); | |
3152 | gdb_assert (aspace); | |
6c95b8df | 3153 | |
c0694254 PA |
3154 | if (targetdebug) |
3155 | fprintf_unfiltered (gdb_stdlog, | |
3156 | "target_thread_address_space (%s) = %d\n", | |
3157 | target_pid_to_str (ptid), | |
3158 | address_space_num (aspace)); | |
3159 | return aspace; | |
3160 | } | |
3161 | } | |
6c95b8df PA |
3162 | |
3163 | /* Fall-back to the "main" address space of the inferior. */ | |
3164 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3165 | ||
3166 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3167 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3168 | _("Can't determine the current " |
3169 | "address space of thread %s\n"), | |
6c95b8df PA |
3170 | target_pid_to_str (ptid)); |
3171 | ||
3172 | return inf->aspace; | |
3173 | } | |
3174 | ||
7313baad UW |
3175 | |
3176 | /* Target file operations. */ | |
3177 | ||
3178 | static struct target_ops * | |
3179 | default_fileio_target (void) | |
3180 | { | |
3181 | /* If we're already connected to something that can perform | |
3182 | file I/O, use it. Otherwise, try using the native target. */ | |
3183 | if (current_target.to_stratum >= process_stratum) | |
3184 | return current_target.beneath; | |
3185 | else | |
3186 | return find_default_run_target ("file I/O"); | |
3187 | } | |
3188 | ||
3189 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3190 | target file descriptor, or -1 if an error occurs (and set | |
3191 | *TARGET_ERRNO). */ | |
3192 | int | |
3193 | target_fileio_open (const char *filename, int flags, int mode, | |
3194 | int *target_errno) | |
3195 | { | |
3196 | struct target_ops *t; | |
3197 | ||
3198 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3199 | { | |
3200 | if (t->to_fileio_open != NULL) | |
3201 | { | |
cd897586 | 3202 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
3203 | |
3204 | if (targetdebug) | |
3205 | fprintf_unfiltered (gdb_stdlog, | |
3206 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3207 | filename, flags, mode, | |
3208 | fd, fd != -1 ? 0 : *target_errno); | |
3209 | return fd; | |
3210 | } | |
3211 | } | |
3212 | ||
3213 | *target_errno = FILEIO_ENOSYS; | |
3214 | return -1; | |
3215 | } | |
3216 | ||
3217 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3218 | Return the number of bytes written, or -1 if an error occurs | |
3219 | (and set *TARGET_ERRNO). */ | |
3220 | int | |
3221 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3222 | ULONGEST offset, int *target_errno) | |
3223 | { | |
3224 | struct target_ops *t; | |
3225 | ||
3226 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3227 | { | |
3228 | if (t->to_fileio_pwrite != NULL) | |
3229 | { | |
0d866f62 | 3230 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
3231 | target_errno); |
3232 | ||
3233 | if (targetdebug) | |
3234 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3235 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3236 | "= %d (%d)\n", |
a71b5a38 | 3237 | fd, len, pulongest (offset), |
7313baad UW |
3238 | ret, ret != -1 ? 0 : *target_errno); |
3239 | return ret; | |
3240 | } | |
3241 | } | |
3242 | ||
3243 | *target_errno = FILEIO_ENOSYS; | |
3244 | return -1; | |
3245 | } | |
3246 | ||
3247 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3248 | Return the number of bytes read, or -1 if an error occurs | |
3249 | (and set *TARGET_ERRNO). */ | |
3250 | int | |
3251 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3252 | ULONGEST offset, int *target_errno) | |
3253 | { | |
3254 | struct target_ops *t; | |
3255 | ||
3256 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3257 | { | |
3258 | if (t->to_fileio_pread != NULL) | |
3259 | { | |
a3be983c | 3260 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
3261 | target_errno); |
3262 | ||
3263 | if (targetdebug) | |
3264 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3265 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3266 | "= %d (%d)\n", |
a71b5a38 | 3267 | fd, len, pulongest (offset), |
7313baad UW |
3268 | ret, ret != -1 ? 0 : *target_errno); |
3269 | return ret; | |
3270 | } | |
3271 | } | |
3272 | ||
3273 | *target_errno = FILEIO_ENOSYS; | |
3274 | return -1; | |
3275 | } | |
3276 | ||
3277 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3278 | (and set *TARGET_ERRNO). */ | |
3279 | int | |
3280 | target_fileio_close (int fd, int *target_errno) | |
3281 | { | |
3282 | struct target_ops *t; | |
3283 | ||
3284 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3285 | { | |
3286 | if (t->to_fileio_close != NULL) | |
3287 | { | |
df39ea25 | 3288 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
3289 | |
3290 | if (targetdebug) | |
3291 | fprintf_unfiltered (gdb_stdlog, | |
3292 | "target_fileio_close (%d) = %d (%d)\n", | |
3293 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3294 | return ret; | |
3295 | } | |
3296 | } | |
3297 | ||
3298 | *target_errno = FILEIO_ENOSYS; | |
3299 | return -1; | |
3300 | } | |
3301 | ||
3302 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3303 | occurs (and set *TARGET_ERRNO). */ | |
3304 | int | |
3305 | target_fileio_unlink (const char *filename, int *target_errno) | |
3306 | { | |
3307 | struct target_ops *t; | |
3308 | ||
3309 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3310 | { | |
3311 | if (t->to_fileio_unlink != NULL) | |
3312 | { | |
dbbca37d | 3313 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
3314 | |
3315 | if (targetdebug) | |
3316 | fprintf_unfiltered (gdb_stdlog, | |
3317 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3318 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3319 | return ret; | |
3320 | } | |
3321 | } | |
3322 | ||
3323 | *target_errno = FILEIO_ENOSYS; | |
3324 | return -1; | |
3325 | } | |
3326 | ||
b9e7b9c3 UW |
3327 | /* Read value of symbolic link FILENAME on the target. Return a |
3328 | null-terminated string allocated via xmalloc, or NULL if an error | |
3329 | occurs (and set *TARGET_ERRNO). */ | |
3330 | char * | |
3331 | target_fileio_readlink (const char *filename, int *target_errno) | |
3332 | { | |
3333 | struct target_ops *t; | |
3334 | ||
3335 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3336 | { | |
3337 | if (t->to_fileio_readlink != NULL) | |
3338 | { | |
fab5aa7c | 3339 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
3340 | |
3341 | if (targetdebug) | |
3342 | fprintf_unfiltered (gdb_stdlog, | |
3343 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3344 | filename, ret? ret : "(nil)", | |
3345 | ret? 0 : *target_errno); | |
3346 | return ret; | |
3347 | } | |
3348 | } | |
3349 | ||
3350 | *target_errno = FILEIO_ENOSYS; | |
3351 | return NULL; | |
3352 | } | |
3353 | ||
7313baad UW |
3354 | static void |
3355 | target_fileio_close_cleanup (void *opaque) | |
3356 | { | |
3357 | int fd = *(int *) opaque; | |
3358 | int target_errno; | |
3359 | ||
3360 | target_fileio_close (fd, &target_errno); | |
3361 | } | |
3362 | ||
3363 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3364 | return the size of the transferred data. PADDING additional bytes are | |
3365 | available in *BUF_P. This is a helper function for | |
3366 | target_fileio_read_alloc; see the declaration of that function for more | |
3367 | information. */ | |
3368 | ||
3369 | static LONGEST | |
3370 | target_fileio_read_alloc_1 (const char *filename, | |
3371 | gdb_byte **buf_p, int padding) | |
3372 | { | |
3373 | struct cleanup *close_cleanup; | |
3374 | size_t buf_alloc, buf_pos; | |
3375 | gdb_byte *buf; | |
3376 | LONGEST n; | |
3377 | int fd; | |
3378 | int target_errno; | |
3379 | ||
3380 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3381 | if (fd == -1) | |
3382 | return -1; | |
3383 | ||
3384 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3385 | ||
3386 | /* Start by reading up to 4K at a time. The target will throttle | |
3387 | this number down if necessary. */ | |
3388 | buf_alloc = 4096; | |
3389 | buf = xmalloc (buf_alloc); | |
3390 | buf_pos = 0; | |
3391 | while (1) | |
3392 | { | |
3393 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3394 | buf_alloc - buf_pos - padding, buf_pos, | |
3395 | &target_errno); | |
3396 | if (n < 0) | |
3397 | { | |
3398 | /* An error occurred. */ | |
3399 | do_cleanups (close_cleanup); | |
3400 | xfree (buf); | |
3401 | return -1; | |
3402 | } | |
3403 | else if (n == 0) | |
3404 | { | |
3405 | /* Read all there was. */ | |
3406 | do_cleanups (close_cleanup); | |
3407 | if (buf_pos == 0) | |
3408 | xfree (buf); | |
3409 | else | |
3410 | *buf_p = buf; | |
3411 | return buf_pos; | |
3412 | } | |
3413 | ||
3414 | buf_pos += n; | |
3415 | ||
3416 | /* If the buffer is filling up, expand it. */ | |
3417 | if (buf_alloc < buf_pos * 2) | |
3418 | { | |
3419 | buf_alloc *= 2; | |
3420 | buf = xrealloc (buf, buf_alloc); | |
3421 | } | |
3422 | ||
3423 | QUIT; | |
3424 | } | |
3425 | } | |
3426 | ||
3427 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3428 | the size of the transferred data. See the declaration in "target.h" | |
3429 | function for more information about the return value. */ | |
3430 | ||
3431 | LONGEST | |
3432 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3433 | { | |
3434 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3435 | } | |
3436 | ||
3437 | /* Read target file FILENAME. The result is NUL-terminated and | |
3438 | returned as a string, allocated using xmalloc. If an error occurs | |
3439 | or the transfer is unsupported, NULL is returned. Empty objects | |
3440 | are returned as allocated but empty strings. A warning is issued | |
3441 | if the result contains any embedded NUL bytes. */ | |
3442 | ||
3443 | char * | |
3444 | target_fileio_read_stralloc (const char *filename) | |
3445 | { | |
39086a0e PA |
3446 | gdb_byte *buffer; |
3447 | char *bufstr; | |
7313baad UW |
3448 | LONGEST i, transferred; |
3449 | ||
39086a0e PA |
3450 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3451 | bufstr = (char *) buffer; | |
7313baad UW |
3452 | |
3453 | if (transferred < 0) | |
3454 | return NULL; | |
3455 | ||
3456 | if (transferred == 0) | |
3457 | return xstrdup (""); | |
3458 | ||
39086a0e | 3459 | bufstr[transferred] = 0; |
7313baad UW |
3460 | |
3461 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3462 | for (i = strlen (bufstr); i < transferred; i++) |
3463 | if (bufstr[i] != 0) | |
7313baad UW |
3464 | { |
3465 | warning (_("target file %s " | |
3466 | "contained unexpected null characters"), | |
3467 | filename); | |
3468 | break; | |
3469 | } | |
3470 | ||
39086a0e | 3471 | return bufstr; |
7313baad UW |
3472 | } |
3473 | ||
3474 | ||
e0d24f8d | 3475 | static int |
31568a15 TT |
3476 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3477 | CORE_ADDR addr, int len) | |
e0d24f8d | 3478 | { |
f5656ead | 3479 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3480 | } |
3481 | ||
5009afc5 AS |
3482 | static int |
3483 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3484 | CORE_ADDR addr, | |
3485 | CORE_ADDR start, int length) | |
3486 | { | |
3487 | return addr >= start && addr < start + length; | |
3488 | } | |
3489 | ||
c2250ad1 UW |
3490 | static struct gdbarch * |
3491 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3492 | { | |
f5656ead | 3493 | return target_gdbarch (); |
c2250ad1 UW |
3494 | } |
3495 | ||
c906108c | 3496 | static int |
fba45db2 | 3497 | return_zero (void) |
c906108c SS |
3498 | { |
3499 | return 0; | |
3500 | } | |
3501 | ||
1b67eb02 AS |
3502 | static void * |
3503 | return_null (void) | |
3504 | { | |
3505 | return 0; | |
3506 | } | |
3507 | ||
ed9a39eb JM |
3508 | /* |
3509 | * Find the next target down the stack from the specified target. | |
3510 | */ | |
3511 | ||
3512 | struct target_ops * | |
fba45db2 | 3513 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3514 | { |
258b763a | 3515 | return t->beneath; |
ed9a39eb JM |
3516 | } |
3517 | ||
8b06beed TT |
3518 | /* See target.h. */ |
3519 | ||
3520 | struct target_ops * | |
3521 | find_target_at (enum strata stratum) | |
3522 | { | |
3523 | struct target_ops *t; | |
3524 | ||
3525 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3526 | if (t->to_stratum == stratum) | |
3527 | return t; | |
3528 | ||
3529 | return NULL; | |
3530 | } | |
3531 | ||
c906108c SS |
3532 | \f |
3533 | /* The inferior process has died. Long live the inferior! */ | |
3534 | ||
3535 | void | |
fba45db2 | 3536 | generic_mourn_inferior (void) |
c906108c | 3537 | { |
7f9f62ba | 3538 | ptid_t ptid; |
c906108c | 3539 | |
7f9f62ba | 3540 | ptid = inferior_ptid; |
39f77062 | 3541 | inferior_ptid = null_ptid; |
7f9f62ba | 3542 | |
f59f708a PA |
3543 | /* Mark breakpoints uninserted in case something tries to delete a |
3544 | breakpoint while we delete the inferior's threads (which would | |
3545 | fail, since the inferior is long gone). */ | |
3546 | mark_breakpoints_out (); | |
3547 | ||
7f9f62ba PA |
3548 | if (!ptid_equal (ptid, null_ptid)) |
3549 | { | |
3550 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3551 | exit_inferior (pid); |
7f9f62ba PA |
3552 | } |
3553 | ||
f59f708a PA |
3554 | /* Note this wipes step-resume breakpoints, so needs to be done |
3555 | after exit_inferior, which ends up referencing the step-resume | |
3556 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3557 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3558 | |
c906108c SS |
3559 | registers_changed (); |
3560 | ||
c906108c SS |
3561 | reopen_exec_file (); |
3562 | reinit_frame_cache (); | |
3563 | ||
9a4105ab AC |
3564 | if (deprecated_detach_hook) |
3565 | deprecated_detach_hook (); | |
c906108c SS |
3566 | } |
3567 | \f | |
fd0a2a6f MK |
3568 | /* Convert a normal process ID to a string. Returns the string in a |
3569 | static buffer. */ | |
c906108c SS |
3570 | |
3571 | char * | |
39f77062 | 3572 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3573 | { |
fd0a2a6f | 3574 | static char buf[32]; |
c906108c | 3575 | |
5fff8fc0 | 3576 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3577 | return buf; |
3578 | } | |
3579 | ||
2c0b251b | 3580 | static char * |
117de6a9 PA |
3581 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3582 | { | |
3583 | return normal_pid_to_str (ptid); | |
3584 | } | |
3585 | ||
9b4eba8e HZ |
3586 | /* Error-catcher for target_find_memory_regions. */ |
3587 | static int | |
2e73927c TT |
3588 | dummy_find_memory_regions (struct target_ops *self, |
3589 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3590 | { |
9b4eba8e | 3591 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3592 | return 0; |
3593 | } | |
3594 | ||
9b4eba8e HZ |
3595 | /* Error-catcher for target_make_corefile_notes. */ |
3596 | static char * | |
fc6691b2 TT |
3597 | dummy_make_corefile_notes (struct target_ops *self, |
3598 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3599 | { |
9b4eba8e | 3600 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3601 | return NULL; |
3602 | } | |
3603 | ||
c906108c SS |
3604 | /* Set up the handful of non-empty slots needed by the dummy target |
3605 | vector. */ | |
3606 | ||
3607 | static void | |
fba45db2 | 3608 | init_dummy_target (void) |
c906108c SS |
3609 | { |
3610 | dummy_target.to_shortname = "None"; | |
3611 | dummy_target.to_longname = "None"; | |
3612 | dummy_target.to_doc = ""; | |
c906108c | 3613 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3614 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3615 | dummy_target.to_supports_disable_randomization |
3616 | = find_default_supports_disable_randomization; | |
117de6a9 | 3617 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3618 | dummy_target.to_stratum = dummy_stratum; |
c35b1492 PA |
3619 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3620 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3621 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3622 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3623 | dummy_target.to_has_execution |
3624 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3625 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3626 | |
3627 | install_dummy_methods (&dummy_target); | |
c906108c | 3628 | } |
c906108c | 3629 | \f |
c906108c | 3630 | static void |
fba45db2 | 3631 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3632 | { |
3633 | debug_target.to_open (args, from_tty); | |
3634 | ||
96baa820 | 3635 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3636 | } |
3637 | ||
f1c07ab0 | 3638 | void |
460014f5 | 3639 | target_close (struct target_ops *targ) |
f1c07ab0 | 3640 | { |
7fdc1521 TT |
3641 | gdb_assert (!target_is_pushed (targ)); |
3642 | ||
f1c07ab0 | 3643 | if (targ->to_xclose != NULL) |
460014f5 | 3644 | targ->to_xclose (targ); |
f1c07ab0 | 3645 | else if (targ->to_close != NULL) |
de90e03d | 3646 | targ->to_close (targ); |
947b8855 PA |
3647 | |
3648 | if (targetdebug) | |
460014f5 | 3649 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3650 | } |
3651 | ||
136d6dae VP |
3652 | void |
3653 | target_attach (char *args, int from_tty) | |
3654 | { | |
e9a29200 TT |
3655 | current_target.to_attach (¤t_target, args, from_tty); |
3656 | if (targetdebug) | |
3657 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3658 | args, from_tty); | |
136d6dae VP |
3659 | } |
3660 | ||
28439f5e PA |
3661 | int |
3662 | target_thread_alive (ptid_t ptid) | |
c906108c | 3663 | { |
28439f5e | 3664 | struct target_ops *t; |
5d502164 | 3665 | |
28439f5e PA |
3666 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3667 | { | |
3668 | if (t->to_thread_alive != NULL) | |
3669 | { | |
3670 | int retval; | |
c906108c | 3671 | |
28439f5e PA |
3672 | retval = t->to_thread_alive (t, ptid); |
3673 | if (targetdebug) | |
3674 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3675 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3676 | |
3677 | return retval; | |
3678 | } | |
3679 | } | |
3680 | ||
3681 | return 0; | |
3682 | } | |
3683 | ||
3684 | void | |
3685 | target_find_new_threads (void) | |
3686 | { | |
3687 | struct target_ops *t; | |
5d502164 | 3688 | |
28439f5e PA |
3689 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3690 | { | |
3691 | if (t->to_find_new_threads != NULL) | |
3692 | { | |
3693 | t->to_find_new_threads (t); | |
3694 | if (targetdebug) | |
3695 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3696 | ||
3697 | return; | |
3698 | } | |
3699 | } | |
c906108c SS |
3700 | } |
3701 | ||
d914c394 SS |
3702 | void |
3703 | target_stop (ptid_t ptid) | |
3704 | { | |
3705 | if (!may_stop) | |
3706 | { | |
3707 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3708 | return; | |
3709 | } | |
3710 | ||
1eab8a48 | 3711 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3712 | } |
3713 | ||
c906108c | 3714 | static void |
f045800c | 3715 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3716 | { |
f045800c | 3717 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3718 | |
28439f5e | 3719 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3720 | } |
3721 | ||
09826ec5 PA |
3722 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3723 | result. The LIST incoming argument is released. */ | |
3724 | ||
3725 | static char * | |
3726 | str_comma_list_concat_elem (char *list, const char *elem) | |
3727 | { | |
3728 | if (list == NULL) | |
3729 | return xstrdup (elem); | |
3730 | else | |
3731 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3732 | } | |
3733 | ||
3734 | /* Helper for target_options_to_string. If OPT is present in | |
3735 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3736 | Returns the new resulting string. OPT is removed from | |
3737 | TARGET_OPTIONS. */ | |
3738 | ||
3739 | static char * | |
3740 | do_option (int *target_options, char *ret, | |
3741 | int opt, char *opt_str) | |
3742 | { | |
3743 | if ((*target_options & opt) != 0) | |
3744 | { | |
3745 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3746 | *target_options &= ~opt; | |
3747 | } | |
3748 | ||
3749 | return ret; | |
3750 | } | |
3751 | ||
3752 | char * | |
3753 | target_options_to_string (int target_options) | |
3754 | { | |
3755 | char *ret = NULL; | |
3756 | ||
3757 | #define DO_TARG_OPTION(OPT) \ | |
3758 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3759 | ||
3760 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3761 | ||
3762 | if (target_options != 0) | |
3763 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3764 | ||
3765 | if (ret == NULL) | |
3766 | ret = xstrdup (""); | |
3767 | return ret; | |
3768 | } | |
3769 | ||
bf0c5130 | 3770 | static void |
56be3814 UW |
3771 | debug_print_register (const char * func, |
3772 | struct regcache *regcache, int regno) | |
bf0c5130 | 3773 | { |
f8d29908 | 3774 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3775 | |
bf0c5130 | 3776 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3777 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3778 | && gdbarch_register_name (gdbarch, regno) != NULL |
3779 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3780 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3781 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3782 | else |
3783 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3784 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3785 | { |
e17a4113 | 3786 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3787 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3788 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3789 | |
0ff58721 | 3790 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3791 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3792 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3793 | { |
3794 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3795 | } | |
81c4a259 | 3796 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3797 | { |
e17a4113 | 3798 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3799 | |
0b1553bc UW |
3800 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3801 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3802 | } |
3803 | } | |
3804 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3805 | } | |
3806 | ||
28439f5e PA |
3807 | void |
3808 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3809 | { |
28439f5e | 3810 | struct target_ops *t; |
5d502164 | 3811 | |
28439f5e PA |
3812 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3813 | { | |
3814 | if (t->to_fetch_registers != NULL) | |
3815 | { | |
3816 | t->to_fetch_registers (t, regcache, regno); | |
3817 | if (targetdebug) | |
3818 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3819 | return; | |
3820 | } | |
3821 | } | |
c906108c SS |
3822 | } |
3823 | ||
28439f5e PA |
3824 | void |
3825 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3826 | { |
28439f5e | 3827 | struct target_ops *t; |
5d502164 | 3828 | |
d914c394 SS |
3829 | if (!may_write_registers) |
3830 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3831 | ||
6b84065d TT |
3832 | current_target.to_store_registers (¤t_target, regcache, regno); |
3833 | if (targetdebug) | |
28439f5e | 3834 | { |
6b84065d | 3835 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3836 | } |
c906108c SS |
3837 | } |
3838 | ||
dc146f7c VP |
3839 | int |
3840 | target_core_of_thread (ptid_t ptid) | |
3841 | { | |
3842 | struct target_ops *t; | |
3843 | ||
3844 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3845 | { | |
3846 | if (t->to_core_of_thread != NULL) | |
3847 | { | |
3848 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 3849 | |
dc146f7c | 3850 | if (targetdebug) |
3e43a32a MS |
3851 | fprintf_unfiltered (gdb_stdlog, |
3852 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 3853 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
3854 | return retval; |
3855 | } | |
3856 | } | |
3857 | ||
3858 | return -1; | |
3859 | } | |
3860 | ||
4a5e7a5b PA |
3861 | int |
3862 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3863 | { | |
3864 | struct target_ops *t; | |
3865 | ||
3866 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3867 | { | |
3868 | if (t->to_verify_memory != NULL) | |
3869 | { | |
3870 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 3871 | |
4a5e7a5b | 3872 | if (targetdebug) |
3e43a32a MS |
3873 | fprintf_unfiltered (gdb_stdlog, |
3874 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 3875 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
3876 | pulongest (size), |
3877 | retval); | |
3878 | return retval; | |
3879 | } | |
3880 | } | |
3881 | ||
3882 | tcomplain (); | |
3883 | } | |
3884 | ||
9c06b0b4 TJB |
3885 | /* The documentation for this function is in its prototype declaration in |
3886 | target.h. */ | |
3887 | ||
3888 | int | |
3889 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3890 | { | |
3891 | struct target_ops *t; | |
3892 | ||
3893 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3894 | if (t->to_insert_mask_watchpoint != NULL) | |
3895 | { | |
3896 | int ret; | |
3897 | ||
3898 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
3899 | ||
3900 | if (targetdebug) | |
3901 | fprintf_unfiltered (gdb_stdlog, "\ | |
3902 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
3903 | core_addr_to_string (addr), | |
3904 | core_addr_to_string (mask), rw, ret); | |
3905 | ||
3906 | return ret; | |
3907 | } | |
3908 | ||
3909 | return 1; | |
3910 | } | |
3911 | ||
3912 | /* The documentation for this function is in its prototype declaration in | |
3913 | target.h. */ | |
3914 | ||
3915 | int | |
3916 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3917 | { | |
3918 | struct target_ops *t; | |
3919 | ||
3920 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3921 | if (t->to_remove_mask_watchpoint != NULL) | |
3922 | { | |
3923 | int ret; | |
3924 | ||
3925 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
3926 | ||
3927 | if (targetdebug) | |
3928 | fprintf_unfiltered (gdb_stdlog, "\ | |
3929 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
3930 | core_addr_to_string (addr), | |
3931 | core_addr_to_string (mask), rw, ret); | |
3932 | ||
3933 | return ret; | |
3934 | } | |
3935 | ||
3936 | return 1; | |
3937 | } | |
3938 | ||
3939 | /* The documentation for this function is in its prototype declaration | |
3940 | in target.h. */ | |
3941 | ||
3942 | int | |
3943 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3944 | { | |
3945 | struct target_ops *t; | |
3946 | ||
3947 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3948 | if (t->to_masked_watch_num_registers != NULL) | |
3949 | return t->to_masked_watch_num_registers (t, addr, mask); | |
3950 | ||
3951 | return -1; | |
3952 | } | |
3953 | ||
f1310107 TJB |
3954 | /* The documentation for this function is in its prototype declaration |
3955 | in target.h. */ | |
3956 | ||
3957 | int | |
3958 | target_ranged_break_num_registers (void) | |
3959 | { | |
3960 | struct target_ops *t; | |
3961 | ||
3962 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3963 | if (t->to_ranged_break_num_registers != NULL) | |
3964 | return t->to_ranged_break_num_registers (t); | |
3965 | ||
3966 | return -1; | |
3967 | } | |
3968 | ||
02d27625 MM |
3969 | /* See target.h. */ |
3970 | ||
02d27625 MM |
3971 | struct btrace_target_info * |
3972 | target_enable_btrace (ptid_t ptid) | |
3973 | { | |
3974 | struct target_ops *t; | |
3975 | ||
3976 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3977 | if (t->to_enable_btrace != NULL) | |
e3c49f88 | 3978 | return t->to_enable_btrace (t, ptid); |
02d27625 MM |
3979 | |
3980 | tcomplain (); | |
3981 | return NULL; | |
3982 | } | |
3983 | ||
3984 | /* See target.h. */ | |
3985 | ||
3986 | void | |
3987 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3988 | { | |
3989 | struct target_ops *t; | |
3990 | ||
3991 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3992 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 | 3993 | { |
25e95349 | 3994 | t->to_disable_btrace (t, btinfo); |
d92f7ee3 SDJ |
3995 | return; |
3996 | } | |
02d27625 MM |
3997 | |
3998 | tcomplain (); | |
3999 | } | |
4000 | ||
4001 | /* See target.h. */ | |
4002 | ||
4003 | void | |
4004 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4005 | { | |
4006 | struct target_ops *t; | |
4007 | ||
4008 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4009 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 | 4010 | { |
1777056d | 4011 | t->to_teardown_btrace (t, btinfo); |
d92f7ee3 SDJ |
4012 | return; |
4013 | } | |
02d27625 MM |
4014 | |
4015 | tcomplain (); | |
4016 | } | |
4017 | ||
4018 | /* See target.h. */ | |
4019 | ||
969c39fb MM |
4020 | enum btrace_error |
4021 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
4022 | struct btrace_target_info *btinfo, | |
02d27625 MM |
4023 | enum btrace_read_type type) |
4024 | { | |
4025 | struct target_ops *t; | |
4026 | ||
4027 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4028 | if (t->to_read_btrace != NULL) | |
39c49f83 | 4029 | return t->to_read_btrace (t, btrace, btinfo, type); |
02d27625 MM |
4030 | |
4031 | tcomplain (); | |
969c39fb | 4032 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
4033 | } |
4034 | ||
d02ed0bb MM |
4035 | /* See target.h. */ |
4036 | ||
7c1687a9 MM |
4037 | void |
4038 | target_stop_recording (void) | |
4039 | { | |
4040 | struct target_ops *t; | |
4041 | ||
4042 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4043 | if (t->to_stop_recording != NULL) | |
4044 | { | |
c6cd7c02 | 4045 | t->to_stop_recording (t); |
7c1687a9 MM |
4046 | return; |
4047 | } | |
4048 | ||
4049 | /* This is optional. */ | |
4050 | } | |
4051 | ||
4052 | /* See target.h. */ | |
4053 | ||
d02ed0bb MM |
4054 | void |
4055 | target_info_record (void) | |
4056 | { | |
4057 | struct target_ops *t; | |
4058 | ||
4059 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4060 | if (t->to_info_record != NULL) | |
4061 | { | |
630d6a4a | 4062 | t->to_info_record (t); |
d02ed0bb MM |
4063 | return; |
4064 | } | |
4065 | ||
4066 | tcomplain (); | |
4067 | } | |
4068 | ||
4069 | /* See target.h. */ | |
4070 | ||
4071 | void | |
85e1311a | 4072 | target_save_record (const char *filename) |
d02ed0bb MM |
4073 | { |
4074 | struct target_ops *t; | |
4075 | ||
4076 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4077 | if (t->to_save_record != NULL) | |
4078 | { | |
1390f529 | 4079 | t->to_save_record (t, filename); |
d02ed0bb MM |
4080 | return; |
4081 | } | |
4082 | ||
4083 | tcomplain (); | |
4084 | } | |
4085 | ||
4086 | /* See target.h. */ | |
4087 | ||
4088 | int | |
4089 | target_supports_delete_record (void) | |
4090 | { | |
4091 | struct target_ops *t; | |
4092 | ||
4093 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4094 | if (t->to_delete_record != NULL) | |
4095 | return 1; | |
4096 | ||
4097 | return 0; | |
4098 | } | |
4099 | ||
4100 | /* See target.h. */ | |
4101 | ||
4102 | void | |
4103 | target_delete_record (void) | |
4104 | { | |
4105 | struct target_ops *t; | |
4106 | ||
4107 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4108 | if (t->to_delete_record != NULL) | |
4109 | { | |
d1b55219 | 4110 | t->to_delete_record (t); |
d02ed0bb MM |
4111 | return; |
4112 | } | |
4113 | ||
4114 | tcomplain (); | |
4115 | } | |
4116 | ||
4117 | /* See target.h. */ | |
4118 | ||
4119 | int | |
4120 | target_record_is_replaying (void) | |
4121 | { | |
4122 | struct target_ops *t; | |
4123 | ||
4124 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4125 | if (t->to_record_is_replaying != NULL) | |
1c63c994 | 4126 | return t->to_record_is_replaying (t); |
d02ed0bb MM |
4127 | |
4128 | return 0; | |
4129 | } | |
4130 | ||
4131 | /* See target.h. */ | |
4132 | ||
4133 | void | |
4134 | target_goto_record_begin (void) | |
4135 | { | |
4136 | struct target_ops *t; | |
4137 | ||
4138 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4139 | if (t->to_goto_record_begin != NULL) | |
4140 | { | |
08475817 | 4141 | t->to_goto_record_begin (t); |
d02ed0bb MM |
4142 | return; |
4143 | } | |
4144 | ||
4145 | tcomplain (); | |
4146 | } | |
4147 | ||
4148 | /* See target.h. */ | |
4149 | ||
4150 | void | |
4151 | target_goto_record_end (void) | |
4152 | { | |
4153 | struct target_ops *t; | |
4154 | ||
4155 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4156 | if (t->to_goto_record_end != NULL) | |
4157 | { | |
307a1b91 | 4158 | t->to_goto_record_end (t); |
d02ed0bb MM |
4159 | return; |
4160 | } | |
4161 | ||
4162 | tcomplain (); | |
4163 | } | |
4164 | ||
4165 | /* See target.h. */ | |
4166 | ||
4167 | void | |
4168 | target_goto_record (ULONGEST insn) | |
4169 | { | |
4170 | struct target_ops *t; | |
4171 | ||
4172 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4173 | if (t->to_goto_record != NULL) | |
4174 | { | |
606183ac | 4175 | t->to_goto_record (t, insn); |
d02ed0bb MM |
4176 | return; |
4177 | } | |
4178 | ||
4179 | tcomplain (); | |
4180 | } | |
4181 | ||
67c86d06 MM |
4182 | /* See target.h. */ |
4183 | ||
4184 | void | |
4185 | target_insn_history (int size, int flags) | |
4186 | { | |
4187 | struct target_ops *t; | |
4188 | ||
4189 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4190 | if (t->to_insn_history != NULL) | |
4191 | { | |
7a6c5609 | 4192 | t->to_insn_history (t, size, flags); |
67c86d06 MM |
4193 | return; |
4194 | } | |
4195 | ||
4196 | tcomplain (); | |
4197 | } | |
4198 | ||
4199 | /* See target.h. */ | |
4200 | ||
4201 | void | |
4202 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4203 | { | |
4204 | struct target_ops *t; | |
4205 | ||
4206 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4207 | if (t->to_insn_history_from != NULL) | |
4208 | { | |
9abc3ff3 | 4209 | t->to_insn_history_from (t, from, size, flags); |
67c86d06 MM |
4210 | return; |
4211 | } | |
4212 | ||
4213 | tcomplain (); | |
4214 | } | |
4215 | ||
4216 | /* See target.h. */ | |
4217 | ||
4218 | void | |
4219 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4220 | { | |
4221 | struct target_ops *t; | |
4222 | ||
4223 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4224 | if (t->to_insn_history_range != NULL) | |
4225 | { | |
4e99c6b7 | 4226 | t->to_insn_history_range (t, begin, end, flags); |
67c86d06 MM |
4227 | return; |
4228 | } | |
4229 | ||
4230 | tcomplain (); | |
4231 | } | |
4232 | ||
15984c13 MM |
4233 | /* See target.h. */ |
4234 | ||
4235 | void | |
4236 | target_call_history (int size, int flags) | |
4237 | { | |
4238 | struct target_ops *t; | |
4239 | ||
4240 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4241 | if (t->to_call_history != NULL) | |
4242 | { | |
5df2fcba | 4243 | t->to_call_history (t, size, flags); |
15984c13 MM |
4244 | return; |
4245 | } | |
4246 | ||
4247 | tcomplain (); | |
4248 | } | |
4249 | ||
4250 | /* See target.h. */ | |
4251 | ||
4252 | void | |
4253 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4254 | { | |
4255 | struct target_ops *t; | |
4256 | ||
4257 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4258 | if (t->to_call_history_from != NULL) | |
4259 | { | |
ec0aea04 | 4260 | t->to_call_history_from (t, begin, size, flags); |
15984c13 MM |
4261 | return; |
4262 | } | |
4263 | ||
4264 | tcomplain (); | |
4265 | } | |
4266 | ||
4267 | /* See target.h. */ | |
4268 | ||
4269 | void | |
4270 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4271 | { | |
4272 | struct target_ops *t; | |
4273 | ||
4274 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4275 | if (t->to_call_history_range != NULL) | |
4276 | { | |
f0d960ea | 4277 | t->to_call_history_range (t, begin, end, flags); |
15984c13 MM |
4278 | return; |
4279 | } | |
4280 | ||
4281 | tcomplain (); | |
4282 | } | |
4283 | ||
c906108c | 4284 | static void |
f32dbf8c | 4285 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4286 | { |
f32dbf8c | 4287 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4288 | |
96baa820 | 4289 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4290 | } |
4291 | ||
ea001bdc MM |
4292 | /* See target.h. */ |
4293 | ||
4294 | const struct frame_unwind * | |
4295 | target_get_unwinder (void) | |
4296 | { | |
4297 | struct target_ops *t; | |
4298 | ||
4299 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4300 | if (t->to_get_unwinder != NULL) | |
4301 | return t->to_get_unwinder; | |
4302 | ||
4303 | return NULL; | |
4304 | } | |
4305 | ||
4306 | /* See target.h. */ | |
4307 | ||
4308 | const struct frame_unwind * | |
4309 | target_get_tailcall_unwinder (void) | |
4310 | { | |
4311 | struct target_ops *t; | |
4312 | ||
4313 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4314 | if (t->to_get_tailcall_unwinder != NULL) | |
4315 | return t->to_get_tailcall_unwinder; | |
4316 | ||
4317 | return NULL; | |
4318 | } | |
4319 | ||
118e6252 MM |
4320 | /* See target.h. */ |
4321 | ||
4322 | CORE_ADDR | |
4323 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4324 | struct gdbarch *gdbarch) | |
4325 | { | |
4326 | for (; ops != NULL; ops = ops->beneath) | |
4327 | if (ops->to_decr_pc_after_break != NULL) | |
4328 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4329 | ||
4330 | return gdbarch_decr_pc_after_break (gdbarch); | |
4331 | } | |
4332 | ||
4333 | /* See target.h. */ | |
4334 | ||
4335 | CORE_ADDR | |
4336 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4337 | { | |
4338 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4339 | } | |
4340 | ||
c906108c | 4341 | static int |
961cb7b5 | 4342 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4343 | int write, struct mem_attrib *attrib, |
4344 | struct target_ops *target) | |
c906108c SS |
4345 | { |
4346 | int retval; | |
4347 | ||
c8e73a31 AC |
4348 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4349 | attrib, target); | |
c906108c | 4350 | |
96baa820 | 4351 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4352 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4353 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4354 | write ? "write" : "read", retval); |
c906108c | 4355 | |
c906108c SS |
4356 | if (retval > 0) |
4357 | { | |
4358 | int i; | |
4359 | ||
96baa820 | 4360 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4361 | for (i = 0; i < retval; i++) |
4362 | { | |
53b71562 | 4363 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4364 | { |
4365 | if (targetdebug < 2 && i > 0) | |
4366 | { | |
4367 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4368 | break; | |
4369 | } | |
4370 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4371 | } | |
2bc416ba | 4372 | |
96baa820 | 4373 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4374 | } |
4375 | } | |
4376 | ||
96baa820 | 4377 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4378 | |
4379 | return retval; | |
4380 | } | |
4381 | ||
4382 | static void | |
fba45db2 | 4383 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4384 | { |
4385 | debug_target.to_files_info (target); | |
4386 | ||
96baa820 | 4387 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4388 | } |
4389 | ||
4390 | static int | |
3db08215 | 4391 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4392 | struct bp_target_info *bp_tgt) |
c906108c SS |
4393 | { |
4394 | int retval; | |
4395 | ||
6b84065d | 4396 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4397 | |
96baa820 | 4398 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4399 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4400 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4401 | (unsigned long) retval); |
c906108c SS |
4402 | return retval; |
4403 | } | |
4404 | ||
4405 | static int | |
3db08215 | 4406 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4407 | struct bp_target_info *bp_tgt) |
c906108c SS |
4408 | { |
4409 | int retval; | |
4410 | ||
6b84065d | 4411 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4412 | |
96baa820 | 4413 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4414 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4415 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4416 | (unsigned long) retval); |
c906108c SS |
4417 | return retval; |
4418 | } | |
4419 | ||
ccaa32c7 | 4420 | static int |
5461485a TT |
4421 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4422 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4423 | { |
4424 | int retval; | |
4425 | ||
5461485a TT |
4426 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4427 | type, cnt, from_tty); | |
ccaa32c7 GS |
4428 | |
4429 | fprintf_unfiltered (gdb_stdlog, | |
4430 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4431 | (unsigned long) type, | |
4432 | (unsigned long) cnt, | |
4433 | (unsigned long) from_tty, | |
4434 | (unsigned long) retval); | |
4435 | return retval; | |
4436 | } | |
4437 | ||
e0d24f8d | 4438 | static int |
31568a15 TT |
4439 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4440 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4441 | { |
4442 | CORE_ADDR retval; | |
4443 | ||
31568a15 TT |
4444 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4445 | addr, len); | |
e0d24f8d WZ |
4446 | |
4447 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4448 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4449 | core_addr_to_string (addr), (unsigned long) len, | |
4450 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4451 | return retval; |
4452 | } | |
4453 | ||
0cf6dd15 | 4454 | static int |
c3a5ff89 TT |
4455 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4456 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4457 | struct expression *cond) |
4458 | { | |
4459 | int retval; | |
4460 | ||
c3a5ff89 TT |
4461 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4462 | addr, len, | |
3e43a32a | 4463 | rw, cond); |
0cf6dd15 TJB |
4464 | |
4465 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4466 | "target_can_accel_watchpoint_condition " |
4467 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4468 | core_addr_to_string (addr), len, rw, |
4469 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4470 | return retval; |
4471 | } | |
4472 | ||
ccaa32c7 | 4473 | static int |
6a109b6b | 4474 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4475 | { |
4476 | int retval; | |
4477 | ||
6a109b6b | 4478 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4479 | |
4480 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4481 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4482 | (unsigned long) retval); |
4483 | return retval; | |
4484 | } | |
4485 | ||
4aa7a7f5 JJ |
4486 | static int |
4487 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4488 | { |
4aa7a7f5 | 4489 | int retval; |
ccaa32c7 | 4490 | |
4aa7a7f5 | 4491 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4492 | |
4493 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4494 | "target_stopped_data_address ([%s]) = %ld\n", |
4495 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4496 | (unsigned long)retval); |
ccaa32c7 GS |
4497 | return retval; |
4498 | } | |
4499 | ||
5009afc5 AS |
4500 | static int |
4501 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4502 | CORE_ADDR addr, | |
4503 | CORE_ADDR start, int length) | |
4504 | { | |
4505 | int retval; | |
4506 | ||
4507 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4508 | start, length); | |
4509 | ||
4510 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4511 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4512 | core_addr_to_string (addr), core_addr_to_string (start), | |
4513 | length, retval); | |
5009afc5 AS |
4514 | return retval; |
4515 | } | |
4516 | ||
ccaa32c7 | 4517 | static int |
23a26771 TT |
4518 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4519 | struct gdbarch *gdbarch, | |
a6d9a66e | 4520 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4521 | { |
4522 | int retval; | |
4523 | ||
23a26771 TT |
4524 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4525 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4526 | |
4527 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4528 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4529 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4530 | (unsigned long) retval); |
4531 | return retval; | |
4532 | } | |
4533 | ||
4534 | static int | |
a64dc96c TT |
4535 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4536 | struct gdbarch *gdbarch, | |
a6d9a66e | 4537 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4538 | { |
4539 | int retval; | |
4540 | ||
a64dc96c TT |
4541 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4542 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4543 | |
4544 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4545 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4546 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4547 | (unsigned long) retval); |
4548 | return retval; | |
4549 | } | |
4550 | ||
4551 | static int | |
7bb99c53 TT |
4552 | debug_to_insert_watchpoint (struct target_ops *self, |
4553 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4554 | struct expression *cond) |
ccaa32c7 GS |
4555 | { |
4556 | int retval; | |
4557 | ||
7bb99c53 TT |
4558 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4559 | addr, len, type, cond); | |
ccaa32c7 GS |
4560 | |
4561 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4562 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4563 | core_addr_to_string (addr), len, type, | |
4564 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4565 | return retval; |
4566 | } | |
4567 | ||
4568 | static int | |
11b5219a TT |
4569 | debug_to_remove_watchpoint (struct target_ops *self, |
4570 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4571 | struct expression *cond) |
ccaa32c7 GS |
4572 | { |
4573 | int retval; | |
4574 | ||
11b5219a TT |
4575 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4576 | addr, len, type, cond); | |
ccaa32c7 GS |
4577 | |
4578 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4579 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4580 | core_addr_to_string (addr), len, type, | |
4581 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4582 | return retval; |
4583 | } | |
4584 | ||
c906108c | 4585 | static void |
c42bf286 | 4586 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4587 | { |
c42bf286 | 4588 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4589 | |
96baa820 | 4590 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4591 | } |
4592 | ||
4593 | static void | |
d2f640d4 | 4594 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4595 | { |
d2f640d4 | 4596 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4597 | |
96baa820 | 4598 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4599 | } |
4600 | ||
4601 | static void | |
2e1e1a19 | 4602 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4603 | { |
2e1e1a19 | 4604 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4605 | |
96baa820 | 4606 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4607 | } |
4608 | ||
4609 | static void | |
e3594fd1 | 4610 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4611 | { |
e3594fd1 | 4612 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4613 | |
96baa820 | 4614 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4615 | } |
4616 | ||
a790ad35 | 4617 | static void |
ae3bd431 | 4618 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4619 | { |
ae3bd431 | 4620 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4621 | |
4622 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4623 | } | |
4624 | ||
c906108c | 4625 | static void |
0a4f40a2 TT |
4626 | debug_to_terminal_info (struct target_ops *self, |
4627 | const char *arg, int from_tty) | |
c906108c | 4628 | { |
0a4f40a2 | 4629 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4630 | |
96baa820 | 4631 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4632 | from_tty); |
4633 | } | |
4634 | ||
c906108c | 4635 | static void |
71a9f134 | 4636 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4637 | { |
71a9f134 | 4638 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4639 | |
96baa820 | 4640 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4641 | } |
4642 | ||
c906108c | 4643 | static void |
2e97a79e | 4644 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4645 | { |
2e97a79e | 4646 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4647 | |
96baa820 | 4648 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4649 | ptid_get_pid (ptid)); |
c906108c SS |
4650 | } |
4651 | ||
77b06cd7 | 4652 | static int |
a863b201 | 4653 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4654 | { |
77b06cd7 TJB |
4655 | int retval; |
4656 | ||
a863b201 | 4657 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4658 | |
4659 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4660 | pid, retval); | |
c906108c | 4661 | |
77b06cd7 | 4662 | return retval; |
c906108c SS |
4663 | } |
4664 | ||
4665 | static int | |
973fc227 | 4666 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4667 | { |
c5aa993b | 4668 | int retval; |
c906108c | 4669 | |
973fc227 | 4670 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4671 | |
96baa820 | 4672 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4673 | pid, retval); |
c906108c SS |
4674 | |
4675 | return retval; | |
4676 | } | |
4677 | ||
77b06cd7 | 4678 | static int |
3ecc7da0 | 4679 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4680 | { |
77b06cd7 TJB |
4681 | int retval; |
4682 | ||
3ecc7da0 | 4683 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4684 | |
77b06cd7 TJB |
4685 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4686 | pid, retval); | |
4687 | ||
4688 | return retval; | |
c906108c SS |
4689 | } |
4690 | ||
4691 | static int | |
e98cf0cd | 4692 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4693 | { |
c5aa993b | 4694 | int retval; |
c906108c | 4695 | |
e98cf0cd | 4696 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4697 | |
96baa820 | 4698 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4699 | pid, retval); |
c906108c SS |
4700 | |
4701 | return retval; | |
4702 | } | |
4703 | ||
77b06cd7 | 4704 | static int |
ba025e51 | 4705 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4706 | { |
77b06cd7 TJB |
4707 | int retval; |
4708 | ||
ba025e51 | 4709 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4710 | |
77b06cd7 TJB |
4711 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4712 | pid, retval); | |
4713 | ||
4714 | return retval; | |
c906108c SS |
4715 | } |
4716 | ||
4717 | static int | |
758e29d2 | 4718 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4719 | { |
c5aa993b | 4720 | int retval; |
c906108c | 4721 | |
758e29d2 | 4722 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4723 | |
96baa820 | 4724 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4725 | pid, retval); |
c906108c SS |
4726 | |
4727 | return retval; | |
4728 | } | |
4729 | ||
c906108c | 4730 | static int |
d796e1d6 TT |
4731 | debug_to_has_exited (struct target_ops *self, |
4732 | int pid, int wait_status, int *exit_status) | |
c906108c | 4733 | { |
c5aa993b | 4734 | int has_exited; |
c906108c | 4735 | |
d796e1d6 TT |
4736 | has_exited = debug_target.to_has_exited (&debug_target, |
4737 | pid, wait_status, exit_status); | |
c906108c | 4738 | |
96baa820 | 4739 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4740 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4741 | |
4742 | return has_exited; | |
4743 | } | |
4744 | ||
c906108c | 4745 | static int |
da82bd6b | 4746 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4747 | { |
4748 | int retval; | |
4749 | ||
da82bd6b | 4750 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4751 | |
96baa820 | 4752 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4753 | |
4754 | return retval; | |
4755 | } | |
4756 | ||
c2250ad1 UW |
4757 | static struct gdbarch * |
4758 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4759 | { | |
4760 | struct gdbarch *retval; | |
4761 | ||
4762 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4763 | ||
3e43a32a MS |
4764 | fprintf_unfiltered (gdb_stdlog, |
4765 | "target_thread_architecture (%s) = %s [%s]\n", | |
4766 | target_pid_to_str (ptid), | |
4767 | host_address_to_string (retval), | |
c2250ad1 UW |
4768 | gdbarch_bfd_arch_info (retval)->printable_name); |
4769 | return retval; | |
4770 | } | |
4771 | ||
c906108c | 4772 | static void |
1eab8a48 | 4773 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4774 | { |
1eab8a48 | 4775 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4776 | |
94cc34af PA |
4777 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4778 | target_pid_to_str (ptid)); | |
c906108c SS |
4779 | } |
4780 | ||
96baa820 | 4781 | static void |
1aac633b | 4782 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4783 | struct ui_file *outbuf) |
96baa820 | 4784 | { |
1aac633b | 4785 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4786 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4787 | } | |
4788 | ||
c906108c | 4789 | static char * |
8dd27370 | 4790 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4791 | { |
c5aa993b | 4792 | char *exec_file; |
c906108c | 4793 | |
8dd27370 | 4794 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4795 | |
96baa820 | 4796 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4797 | pid, exec_file); |
c906108c SS |
4798 | |
4799 | return exec_file; | |
4800 | } | |
4801 | ||
c906108c | 4802 | static void |
fba45db2 | 4803 | setup_target_debug (void) |
c906108c SS |
4804 | { |
4805 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4806 | ||
4807 | current_target.to_open = debug_to_open; | |
c906108c | 4808 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4809 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4810 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4811 | current_target.to_files_info = debug_to_files_info; |
4812 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4813 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4814 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4815 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4816 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4817 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4818 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4819 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4820 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4821 | current_target.to_watchpoint_addr_within_range |
4822 | = debug_to_watchpoint_addr_within_range; | |
4823 | current_target.to_region_ok_for_hw_watchpoint | |
4824 | = debug_to_region_ok_for_hw_watchpoint; | |
4825 | current_target.to_can_accel_watchpoint_condition | |
4826 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4827 | current_target.to_terminal_init = debug_to_terminal_init; |
4828 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4829 | current_target.to_terminal_ours_for_output |
4830 | = debug_to_terminal_ours_for_output; | |
c906108c | 4831 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4832 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4833 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4834 | current_target.to_load = debug_to_load; |
c906108c | 4835 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4836 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4837 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4838 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4839 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4840 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4841 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4842 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4843 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4844 | current_target.to_stop = debug_to_stop; |
96baa820 | 4845 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4846 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4847 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4848 | } |
c906108c | 4849 | \f |
c5aa993b JM |
4850 | |
4851 | static char targ_desc[] = | |
3e43a32a MS |
4852 | "Names of targets and files being debugged.\nShows the entire \ |
4853 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4854 | core-file, and process, if any), as well as the symbol file name."; |
4855 | ||
a53f3625 TT |
4856 | static void |
4857 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4858 | { | |
4859 | error (_("\"monitor\" command not supported by this target.")); | |
4860 | } | |
4861 | ||
96baa820 JM |
4862 | static void |
4863 | do_monitor_command (char *cmd, | |
4864 | int from_tty) | |
4865 | { | |
96baa820 JM |
4866 | target_rcmd (cmd, gdb_stdtarg); |
4867 | } | |
4868 | ||
87680a14 JB |
4869 | /* Print the name of each layers of our target stack. */ |
4870 | ||
4871 | static void | |
4872 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4873 | { | |
4874 | struct target_ops *t; | |
4875 | ||
4876 | printf_filtered (_("The current target stack is:\n")); | |
4877 | ||
4878 | for (t = target_stack; t != NULL; t = t->beneath) | |
4879 | { | |
4880 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4881 | } | |
4882 | } | |
4883 | ||
c6ebd6cf VP |
4884 | /* Controls if async mode is permitted. */ |
4885 | int target_async_permitted = 0; | |
4886 | ||
4887 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4888 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4889 | static int target_async_permitted_1 = 0; |
4890 | ||
4891 | static void | |
9401a810 PA |
4892 | set_target_async_command (char *args, int from_tty, |
4893 | struct cmd_list_element *c) | |
c6ebd6cf | 4894 | { |
c35b1492 | 4895 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4896 | { |
4897 | target_async_permitted_1 = target_async_permitted; | |
4898 | error (_("Cannot change this setting while the inferior is running.")); | |
4899 | } | |
4900 | ||
4901 | target_async_permitted = target_async_permitted_1; | |
4902 | } | |
4903 | ||
4904 | static void | |
9401a810 PA |
4905 | show_target_async_command (struct ui_file *file, int from_tty, |
4906 | struct cmd_list_element *c, | |
4907 | const char *value) | |
c6ebd6cf | 4908 | { |
3e43a32a MS |
4909 | fprintf_filtered (file, |
4910 | _("Controlling the inferior in " | |
4911 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4912 | } |
4913 | ||
d914c394 SS |
4914 | /* Temporary copies of permission settings. */ |
4915 | ||
4916 | static int may_write_registers_1 = 1; | |
4917 | static int may_write_memory_1 = 1; | |
4918 | static int may_insert_breakpoints_1 = 1; | |
4919 | static int may_insert_tracepoints_1 = 1; | |
4920 | static int may_insert_fast_tracepoints_1 = 1; | |
4921 | static int may_stop_1 = 1; | |
4922 | ||
4923 | /* Make the user-set values match the real values again. */ | |
4924 | ||
4925 | void | |
4926 | update_target_permissions (void) | |
4927 | { | |
4928 | may_write_registers_1 = may_write_registers; | |
4929 | may_write_memory_1 = may_write_memory; | |
4930 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4931 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4932 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4933 | may_stop_1 = may_stop; | |
4934 | } | |
4935 | ||
4936 | /* The one function handles (most of) the permission flags in the same | |
4937 | way. */ | |
4938 | ||
4939 | static void | |
4940 | set_target_permissions (char *args, int from_tty, | |
4941 | struct cmd_list_element *c) | |
4942 | { | |
4943 | if (target_has_execution) | |
4944 | { | |
4945 | update_target_permissions (); | |
4946 | error (_("Cannot change this setting while the inferior is running.")); | |
4947 | } | |
4948 | ||
4949 | /* Make the real values match the user-changed values. */ | |
4950 | may_write_registers = may_write_registers_1; | |
4951 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4952 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4953 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4954 | may_stop = may_stop_1; | |
4955 | update_observer_mode (); | |
4956 | } | |
4957 | ||
4958 | /* Set memory write permission independently of observer mode. */ | |
4959 | ||
4960 | static void | |
4961 | set_write_memory_permission (char *args, int from_tty, | |
4962 | struct cmd_list_element *c) | |
4963 | { | |
4964 | /* Make the real values match the user-changed values. */ | |
4965 | may_write_memory = may_write_memory_1; | |
4966 | update_observer_mode (); | |
4967 | } | |
4968 | ||
4969 | ||
c906108c | 4970 | void |
fba45db2 | 4971 | initialize_targets (void) |
c906108c SS |
4972 | { |
4973 | init_dummy_target (); | |
4974 | push_target (&dummy_target); | |
4975 | ||
4976 | add_info ("target", target_info, targ_desc); | |
4977 | add_info ("files", target_info, targ_desc); | |
4978 | ||
ccce17b0 | 4979 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4980 | Set target debugging."), _("\ |
4981 | Show target debugging."), _("\ | |
333dabeb DJ |
4982 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4983 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4984 | command."), |
ccce17b0 YQ |
4985 | NULL, |
4986 | show_targetdebug, | |
4987 | &setdebuglist, &showdebuglist); | |
3a11626d | 4988 | |
2bc416ba | 4989 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4990 | &trust_readonly, _("\ |
4991 | Set mode for reading from readonly sections."), _("\ | |
4992 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4993 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4994 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4995 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4996 | NULL, |
920d2a44 | 4997 | show_trust_readonly, |
e707bbc2 | 4998 | &setlist, &showlist); |
96baa820 JM |
4999 | |
5000 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5001 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5002 | |
87680a14 JB |
5003 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5004 | _("Print the name of each layer of the internal target stack."), | |
5005 | &maintenanceprintlist); | |
5006 | ||
c6ebd6cf VP |
5007 | add_setshow_boolean_cmd ("target-async", no_class, |
5008 | &target_async_permitted_1, _("\ | |
5009 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5010 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5011 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5012 | set_target_async_command, |
5013 | show_target_async_command, | |
c6ebd6cf VP |
5014 | &setlist, |
5015 | &showlist); | |
5016 | ||
d914c394 SS |
5017 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5018 | &may_write_registers_1, _("\ | |
5019 | Set permission to write into registers."), _("\ | |
5020 | Show permission to write into registers."), _("\ | |
5021 | When this permission is on, GDB may write into the target's registers.\n\ | |
5022 | Otherwise, any sort of write attempt will result in an error."), | |
5023 | set_target_permissions, NULL, | |
5024 | &setlist, &showlist); | |
5025 | ||
5026 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5027 | &may_write_memory_1, _("\ | |
5028 | Set permission to write into target memory."), _("\ | |
5029 | Show permission to write into target memory."), _("\ | |
5030 | When this permission is on, GDB may write into the target's memory.\n\ | |
5031 | Otherwise, any sort of write attempt will result in an error."), | |
5032 | set_write_memory_permission, NULL, | |
5033 | &setlist, &showlist); | |
5034 | ||
5035 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5036 | &may_insert_breakpoints_1, _("\ | |
5037 | Set permission to insert breakpoints in the target."), _("\ | |
5038 | Show permission to insert breakpoints in the target."), _("\ | |
5039 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5040 | Otherwise, any sort of insertion attempt will result in an error."), | |
5041 | set_target_permissions, NULL, | |
5042 | &setlist, &showlist); | |
5043 | ||
5044 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5045 | &may_insert_tracepoints_1, _("\ | |
5046 | Set permission to insert tracepoints in the target."), _("\ | |
5047 | Show permission to insert tracepoints in the target."), _("\ | |
5048 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5049 | Otherwise, any sort of insertion attempt will result in an error."), | |
5050 | set_target_permissions, NULL, | |
5051 | &setlist, &showlist); | |
5052 | ||
5053 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5054 | &may_insert_fast_tracepoints_1, _("\ | |
5055 | Set permission to insert fast tracepoints in the target."), _("\ | |
5056 | Show permission to insert fast tracepoints in the target."), _("\ | |
5057 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5058 | Otherwise, any sort of insertion attempt will result in an error."), | |
5059 | set_target_permissions, NULL, | |
5060 | &setlist, &showlist); | |
5061 | ||
5062 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5063 | &may_stop_1, _("\ | |
5064 | Set permission to interrupt or signal the target."), _("\ | |
5065 | Show permission to interrupt or signal the target."), _("\ | |
5066 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5067 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5068 | set_target_permissions, NULL, | |
5069 | &setlist, &showlist); | |
c906108c | 5070 | } |