Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1990-2014 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <errno.h> | |
0e9f083f | 24 | #include <string.h> |
c906108c | 25 | #include "target.h" |
68c765e2 | 26 | #include "target-dcache.h" |
c906108c SS |
27 | #include "gdbcmd.h" |
28 | #include "symtab.h" | |
29 | #include "inferior.h" | |
30 | #include "bfd.h" | |
31 | #include "symfile.h" | |
32 | #include "objfiles.h" | |
4930751a | 33 | #include "dcache.h" |
c906108c | 34 | #include <signal.h> |
4e052eda | 35 | #include "regcache.h" |
0088c768 | 36 | #include "gdb_assert.h" |
b6591e8b | 37 | #include "gdbcore.h" |
9e35dae4 | 38 | #include "exceptions.h" |
424163ea | 39 | #include "target-descriptions.h" |
e1ac3328 | 40 | #include "gdbthread.h" |
b9db4ced | 41 | #include "solib.h" |
07b82ea5 | 42 | #include "exec.h" |
edb3359d | 43 | #include "inline-frame.h" |
2f4d8875 | 44 | #include "tracepoint.h" |
7313baad | 45 | #include "gdb/fileio.h" |
8ffcbaaf | 46 | #include "agent.h" |
8de71aab | 47 | #include "auxv.h" |
c906108c | 48 | |
a14ed312 | 49 | static void target_info (char *, int); |
c906108c | 50 | |
0a4f40a2 | 51 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 52 | |
5009afc5 AS |
53 | static int default_watchpoint_addr_within_range (struct target_ops *, |
54 | CORE_ADDR, CORE_ADDR, int); | |
55 | ||
31568a15 TT |
56 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
57 | CORE_ADDR, int); | |
e0d24f8d | 58 | |
a53f3625 TT |
59 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
60 | ||
4229b31d TT |
61 | static ptid_t default_get_ada_task_ptid (struct target_ops *self, |
62 | long lwp, long tid); | |
63 | ||
098dba18 TT |
64 | static int default_follow_fork (struct target_ops *self, int follow_child, |
65 | int detach_fork); | |
66 | ||
8d657035 TT |
67 | static void default_mourn_inferior (struct target_ops *self); |
68 | ||
c25c4a8b | 69 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 70 | |
a14ed312 | 71 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 72 | |
a14ed312 | 73 | static int return_zero (void); |
c906108c | 74 | |
a14ed312 | 75 | void target_ignore (void); |
c906108c | 76 | |
a14ed312 | 77 | static void target_command (char *, int); |
c906108c | 78 | |
a14ed312 | 79 | static struct target_ops *find_default_run_target (char *); |
c906108c | 80 | |
4ac248ca YQ |
81 | static target_xfer_partial_ftype default_xfer_partial; |
82 | ||
c2250ad1 UW |
83 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
84 | ptid_t ptid); | |
85 | ||
0b5a2719 TT |
86 | static int dummy_find_memory_regions (struct target_ops *self, |
87 | find_memory_region_ftype ignore1, | |
88 | void *ignore2); | |
89 | ||
16f796b1 TT |
90 | static char *dummy_make_corefile_notes (struct target_ops *self, |
91 | bfd *ignore1, int *ignore2); | |
92 | ||
770234d3 TT |
93 | static char *default_pid_to_str (struct target_ops *ops, ptid_t ptid); |
94 | ||
6b84065d TT |
95 | static int find_default_can_async_p (struct target_ops *ignore); |
96 | ||
97 | static int find_default_is_async_p (struct target_ops *ignore); | |
98 | ||
fe31bf5b TT |
99 | static enum exec_direction_kind default_execution_direction |
100 | (struct target_ops *self); | |
101 | ||
1101cb7b TT |
102 | #include "target-delegates.c" |
103 | ||
a14ed312 | 104 | static void init_dummy_target (void); |
c906108c | 105 | |
aa869812 AC |
106 | static struct target_ops debug_target; |
107 | ||
a14ed312 | 108 | static void debug_to_open (char *, int); |
c906108c | 109 | |
f32dbf8c MM |
110 | static void debug_to_prepare_to_store (struct target_ops *self, |
111 | struct regcache *); | |
c906108c | 112 | |
a14ed312 | 113 | static void debug_to_files_info (struct target_ops *); |
c906108c | 114 | |
3db08215 | 115 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 116 | struct bp_target_info *); |
c906108c | 117 | |
3db08215 | 118 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 119 | struct bp_target_info *); |
c906108c | 120 | |
5461485a TT |
121 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
122 | int, int, int); | |
ccaa32c7 | 123 | |
23a26771 TT |
124 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
125 | struct gdbarch *, | |
a6d9a66e | 126 | struct bp_target_info *); |
ccaa32c7 | 127 | |
a64dc96c TT |
128 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
129 | struct gdbarch *, | |
a6d9a66e | 130 | struct bp_target_info *); |
ccaa32c7 | 131 | |
7bb99c53 TT |
132 | static int debug_to_insert_watchpoint (struct target_ops *self, |
133 | CORE_ADDR, int, int, | |
0cf6dd15 | 134 | struct expression *); |
ccaa32c7 | 135 | |
11b5219a TT |
136 | static int debug_to_remove_watchpoint (struct target_ops *self, |
137 | CORE_ADDR, int, int, | |
0cf6dd15 | 138 | struct expression *); |
ccaa32c7 | 139 | |
4aa7a7f5 | 140 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 141 | |
5009afc5 AS |
142 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
143 | CORE_ADDR, CORE_ADDR, int); | |
144 | ||
31568a15 TT |
145 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
146 | CORE_ADDR, int); | |
e0d24f8d | 147 | |
c3a5ff89 TT |
148 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
149 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
150 | struct expression *); |
151 | ||
c42bf286 | 152 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 153 | |
d2f640d4 | 154 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 155 | |
2e1e1a19 | 156 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 157 | |
ae3bd431 | 158 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 159 | |
e3594fd1 | 160 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 161 | |
71a9f134 | 162 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 163 | |
da82bd6b | 164 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 165 | |
1eab8a48 | 166 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 167 | |
c906108c | 168 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 169 | array; the current index into the array; the allocated size of the |
c906108c SS |
170 | array. */ |
171 | struct target_ops **target_structs; | |
172 | unsigned target_struct_size; | |
c906108c SS |
173 | unsigned target_struct_allocsize; |
174 | #define DEFAULT_ALLOCSIZE 10 | |
175 | ||
176 | /* The initial current target, so that there is always a semi-valid | |
177 | current target. */ | |
178 | ||
179 | static struct target_ops dummy_target; | |
180 | ||
181 | /* Top of target stack. */ | |
182 | ||
258b763a | 183 | static struct target_ops *target_stack; |
c906108c SS |
184 | |
185 | /* The target structure we are currently using to talk to a process | |
186 | or file or whatever "inferior" we have. */ | |
187 | ||
188 | struct target_ops current_target; | |
189 | ||
190 | /* Command list for target. */ | |
191 | ||
192 | static struct cmd_list_element *targetlist = NULL; | |
193 | ||
cf7a04e8 DJ |
194 | /* Nonzero if we should trust readonly sections from the |
195 | executable when reading memory. */ | |
196 | ||
197 | static int trust_readonly = 0; | |
198 | ||
8defab1a DJ |
199 | /* Nonzero if we should show true memory content including |
200 | memory breakpoint inserted by gdb. */ | |
201 | ||
202 | static int show_memory_breakpoints = 0; | |
203 | ||
d914c394 SS |
204 | /* These globals control whether GDB attempts to perform these |
205 | operations; they are useful for targets that need to prevent | |
206 | inadvertant disruption, such as in non-stop mode. */ | |
207 | ||
208 | int may_write_registers = 1; | |
209 | ||
210 | int may_write_memory = 1; | |
211 | ||
212 | int may_insert_breakpoints = 1; | |
213 | ||
214 | int may_insert_tracepoints = 1; | |
215 | ||
216 | int may_insert_fast_tracepoints = 1; | |
217 | ||
218 | int may_stop = 1; | |
219 | ||
c906108c SS |
220 | /* Non-zero if we want to see trace of target level stuff. */ |
221 | ||
ccce17b0 | 222 | static unsigned int targetdebug = 0; |
920d2a44 AC |
223 | static void |
224 | show_targetdebug (struct ui_file *file, int from_tty, | |
225 | struct cmd_list_element *c, const char *value) | |
226 | { | |
227 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
228 | } | |
c906108c | 229 | |
a14ed312 | 230 | static void setup_target_debug (void); |
c906108c | 231 | |
c906108c SS |
232 | /* The user just typed 'target' without the name of a target. */ |
233 | ||
c906108c | 234 | static void |
fba45db2 | 235 | target_command (char *arg, int from_tty) |
c906108c SS |
236 | { |
237 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
238 | gdb_stdout); | |
239 | } | |
240 | ||
c35b1492 PA |
241 | /* Default target_has_* methods for process_stratum targets. */ |
242 | ||
243 | int | |
244 | default_child_has_all_memory (struct target_ops *ops) | |
245 | { | |
246 | /* If no inferior selected, then we can't read memory here. */ | |
247 | if (ptid_equal (inferior_ptid, null_ptid)) | |
248 | return 0; | |
249 | ||
250 | return 1; | |
251 | } | |
252 | ||
253 | int | |
254 | default_child_has_memory (struct target_ops *ops) | |
255 | { | |
256 | /* If no inferior selected, then we can't read memory here. */ | |
257 | if (ptid_equal (inferior_ptid, null_ptid)) | |
258 | return 0; | |
259 | ||
260 | return 1; | |
261 | } | |
262 | ||
263 | int | |
264 | default_child_has_stack (struct target_ops *ops) | |
265 | { | |
266 | /* If no inferior selected, there's no stack. */ | |
267 | if (ptid_equal (inferior_ptid, null_ptid)) | |
268 | return 0; | |
269 | ||
270 | return 1; | |
271 | } | |
272 | ||
273 | int | |
274 | default_child_has_registers (struct target_ops *ops) | |
275 | { | |
276 | /* Can't read registers from no inferior. */ | |
277 | if (ptid_equal (inferior_ptid, null_ptid)) | |
278 | return 0; | |
279 | ||
280 | return 1; | |
281 | } | |
282 | ||
283 | int | |
aeaec162 | 284 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
285 | { |
286 | /* If there's no thread selected, then we can't make it run through | |
287 | hoops. */ | |
aeaec162 | 288 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
289 | return 0; |
290 | ||
291 | return 1; | |
292 | } | |
293 | ||
294 | ||
295 | int | |
296 | target_has_all_memory_1 (void) | |
297 | { | |
298 | struct target_ops *t; | |
299 | ||
300 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
301 | if (t->to_has_all_memory (t)) | |
302 | return 1; | |
303 | ||
304 | return 0; | |
305 | } | |
306 | ||
307 | int | |
308 | target_has_memory_1 (void) | |
309 | { | |
310 | struct target_ops *t; | |
311 | ||
312 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
313 | if (t->to_has_memory (t)) | |
314 | return 1; | |
315 | ||
316 | return 0; | |
317 | } | |
318 | ||
319 | int | |
320 | target_has_stack_1 (void) | |
321 | { | |
322 | struct target_ops *t; | |
323 | ||
324 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
325 | if (t->to_has_stack (t)) | |
326 | return 1; | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | int | |
332 | target_has_registers_1 (void) | |
333 | { | |
334 | struct target_ops *t; | |
335 | ||
336 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
337 | if (t->to_has_registers (t)) | |
338 | return 1; | |
339 | ||
340 | return 0; | |
341 | } | |
342 | ||
343 | int | |
aeaec162 | 344 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
345 | { |
346 | struct target_ops *t; | |
347 | ||
348 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 349 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
350 | return 1; |
351 | ||
352 | return 0; | |
353 | } | |
354 | ||
aeaec162 TT |
355 | int |
356 | target_has_execution_current (void) | |
357 | { | |
358 | return target_has_execution_1 (inferior_ptid); | |
359 | } | |
360 | ||
c22a2b88 TT |
361 | /* Complete initialization of T. This ensures that various fields in |
362 | T are set, if needed by the target implementation. */ | |
c906108c SS |
363 | |
364 | void | |
c22a2b88 | 365 | complete_target_initialization (struct target_ops *t) |
c906108c | 366 | { |
0088c768 | 367 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
368 | if (t->to_xfer_partial == NULL) |
369 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 370 | |
c35b1492 PA |
371 | if (t->to_has_all_memory == NULL) |
372 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
373 | ||
374 | if (t->to_has_memory == NULL) | |
375 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
376 | ||
377 | if (t->to_has_stack == NULL) | |
378 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
379 | ||
380 | if (t->to_has_registers == NULL) | |
381 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
382 | ||
383 | if (t->to_has_execution == NULL) | |
aeaec162 | 384 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
385 | |
386 | install_delegators (t); | |
c22a2b88 TT |
387 | } |
388 | ||
389 | /* Add possible target architecture T to the list and add a new | |
390 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
391 | completer if not NULL. */ | |
392 | ||
393 | void | |
394 | add_target_with_completer (struct target_ops *t, | |
395 | completer_ftype *completer) | |
396 | { | |
397 | struct cmd_list_element *c; | |
398 | ||
399 | complete_target_initialization (t); | |
c35b1492 | 400 | |
c906108c SS |
401 | if (!target_structs) |
402 | { | |
403 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
404 | target_structs = (struct target_ops **) xmalloc | |
405 | (target_struct_allocsize * sizeof (*target_structs)); | |
406 | } | |
407 | if (target_struct_size >= target_struct_allocsize) | |
408 | { | |
409 | target_struct_allocsize *= 2; | |
410 | target_structs = (struct target_ops **) | |
c5aa993b JM |
411 | xrealloc ((char *) target_structs, |
412 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
413 | } |
414 | target_structs[target_struct_size++] = t; | |
c906108c SS |
415 | |
416 | if (targetlist == NULL) | |
1bedd215 AC |
417 | add_prefix_cmd ("target", class_run, target_command, _("\ |
418 | Connect to a target machine or process.\n\ | |
c906108c SS |
419 | The first argument is the type or protocol of the target machine.\n\ |
420 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
421 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 422 | `help target ' followed by the protocol name."), |
c906108c | 423 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
424 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
425 | &targetlist); | |
426 | if (completer != NULL) | |
427 | set_cmd_completer (c, completer); | |
428 | } | |
429 | ||
430 | /* Add a possible target architecture to the list. */ | |
431 | ||
432 | void | |
433 | add_target (struct target_ops *t) | |
434 | { | |
435 | add_target_with_completer (t, NULL); | |
c906108c SS |
436 | } |
437 | ||
b48d48eb MM |
438 | /* See target.h. */ |
439 | ||
440 | void | |
441 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
442 | { | |
443 | struct cmd_list_element *c; | |
444 | char *alt; | |
445 | ||
446 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
447 | see PR cli/15104. */ | |
448 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
449 | alt = xstrprintf ("target %s", t->to_shortname); | |
450 | deprecate_cmd (c, alt); | |
451 | } | |
452 | ||
c906108c SS |
453 | /* Stub functions */ |
454 | ||
455 | void | |
fba45db2 | 456 | target_ignore (void) |
c906108c SS |
457 | { |
458 | } | |
459 | ||
7d85a9c0 JB |
460 | void |
461 | target_kill (void) | |
462 | { | |
423a4807 TT |
463 | if (targetdebug) |
464 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
7d85a9c0 | 465 | |
423a4807 | 466 | current_target.to_kill (¤t_target); |
7d85a9c0 JB |
467 | } |
468 | ||
11cf8741 JM |
469 | void |
470 | target_load (char *arg, int from_tty) | |
471 | { | |
4e5d721f | 472 | target_dcache_invalidate (); |
71a9f134 | 473 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
474 | } |
475 | ||
947b8855 PA |
476 | void |
477 | target_create_inferior (char *exec_file, char *args, | |
478 | char **env, int from_tty) | |
136d6dae VP |
479 | { |
480 | struct target_ops *t; | |
5d502164 | 481 | |
136d6dae VP |
482 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
483 | { | |
484 | if (t->to_create_inferior != NULL) | |
485 | { | |
486 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
487 | if (targetdebug) |
488 | fprintf_unfiltered (gdb_stdlog, | |
489 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
490 | exec_file, args, from_tty); | |
136d6dae VP |
491 | return; |
492 | } | |
493 | } | |
494 | ||
495 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 496 | _("could not find a target to create inferior")); |
136d6dae VP |
497 | } |
498 | ||
d9d2d8b6 PA |
499 | void |
500 | target_terminal_inferior (void) | |
501 | { | |
502 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 503 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
504 | this point the target is not async yet. However, if sync_execution |
505 | is not set, we know it will become async prior to resume. */ | |
506 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
507 | return; |
508 | ||
509 | /* If GDB is resuming the inferior in the foreground, install | |
510 | inferior's terminal modes. */ | |
d2f640d4 | 511 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 512 | } |
136d6dae | 513 | |
c906108c | 514 | static int |
fba45db2 KB |
515 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
516 | struct target_ops *t) | |
c906108c | 517 | { |
c378eb4e MS |
518 | errno = EIO; /* Can't read/write this location. */ |
519 | return 0; /* No bytes handled. */ | |
c906108c SS |
520 | } |
521 | ||
522 | static void | |
fba45db2 | 523 | tcomplain (void) |
c906108c | 524 | { |
8a3fe4f8 | 525 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
526 | current_target.to_shortname); |
527 | } | |
528 | ||
529 | void | |
fba45db2 | 530 | noprocess (void) |
c906108c | 531 | { |
8a3fe4f8 | 532 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
533 | } |
534 | ||
c906108c | 535 | static void |
0a4f40a2 | 536 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 537 | { |
a3f17187 | 538 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
539 | } |
540 | ||
0ef643c8 JB |
541 | /* A default implementation for the to_get_ada_task_ptid target method. |
542 | ||
543 | This function builds the PTID by using both LWP and TID as part of | |
544 | the PTID lwp and tid elements. The pid used is the pid of the | |
545 | inferior_ptid. */ | |
546 | ||
2c0b251b | 547 | static ptid_t |
1e6b91a4 | 548 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
549 | { |
550 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
551 | } | |
552 | ||
32231432 | 553 | static enum exec_direction_kind |
4c612759 | 554 | default_execution_direction (struct target_ops *self) |
32231432 PA |
555 | { |
556 | if (!target_can_execute_reverse) | |
557 | return EXEC_FORWARD; | |
558 | else if (!target_can_async_p ()) | |
559 | return EXEC_FORWARD; | |
560 | else | |
561 | gdb_assert_not_reached ("\ | |
562 | to_execution_direction must be implemented for reverse async"); | |
563 | } | |
564 | ||
7998dfc3 AC |
565 | /* Go through the target stack from top to bottom, copying over zero |
566 | entries in current_target, then filling in still empty entries. In | |
567 | effect, we are doing class inheritance through the pushed target | |
568 | vectors. | |
569 | ||
570 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
571 | is currently implemented, is that it discards any knowledge of | |
572 | which target an inherited method originally belonged to. | |
573 | Consequently, new new target methods should instead explicitly and | |
574 | locally search the target stack for the target that can handle the | |
575 | request. */ | |
c906108c SS |
576 | |
577 | static void | |
7998dfc3 | 578 | update_current_target (void) |
c906108c | 579 | { |
7998dfc3 AC |
580 | struct target_ops *t; |
581 | ||
08d8bcd7 | 582 | /* First, reset current's contents. */ |
7998dfc3 AC |
583 | memset (¤t_target, 0, sizeof (current_target)); |
584 | ||
1101cb7b TT |
585 | /* Install the delegators. */ |
586 | install_delegators (¤t_target); | |
587 | ||
7998dfc3 AC |
588 | #define INHERIT(FIELD, TARGET) \ |
589 | if (!current_target.FIELD) \ | |
590 | current_target.FIELD = (TARGET)->FIELD | |
591 | ||
592 | for (t = target_stack; t; t = t->beneath) | |
593 | { | |
594 | INHERIT (to_shortname, t); | |
595 | INHERIT (to_longname, t); | |
596 | INHERIT (to_doc, t); | |
b52323fa UW |
597 | /* Do not inherit to_open. */ |
598 | /* Do not inherit to_close. */ | |
136d6dae | 599 | /* Do not inherit to_attach. */ |
bebd3233 | 600 | /* Do not inherit to_post_attach. */ |
dc177b7a | 601 | INHERIT (to_attach_no_wait, t); |
136d6dae | 602 | /* Do not inherit to_detach. */ |
597320e7 | 603 | /* Do not inherit to_disconnect. */ |
28439f5e | 604 | /* Do not inherit to_resume. */ |
117de6a9 | 605 | /* Do not inherit to_wait. */ |
28439f5e PA |
606 | /* Do not inherit to_fetch_registers. */ |
607 | /* Do not inherit to_store_registers. */ | |
6c628163 | 608 | /* Do not inherit to_prepare_to_store. */ |
c8e73a31 | 609 | INHERIT (deprecated_xfer_memory, t); |
f86e59b2 | 610 | /* Do not inherit to_files_info. */ |
3db08215 MM |
611 | /* Do not inherit to_insert_breakpoint. */ |
612 | /* Do not inherit to_remove_breakpoint. */ | |
52b51d06 | 613 | /* Do not inherit to_can_use_hw_breakpoint. */ |
61b371f9 | 614 | /* Do not inherit to_insert_hw_breakpoint. */ |
418dabac | 615 | /* Do not inherit to_remove_hw_breakpoint. */ |
f1310107 | 616 | /* Do not inherit to_ranged_break_num_registers. */ |
016facd4 | 617 | /* Do not inherit to_insert_watchpoint. */ |
61dd109f | 618 | /* Do not inherit to_remove_watchpoint. */ |
9c06b0b4 TJB |
619 | /* Do not inherit to_insert_mask_watchpoint. */ |
620 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 621 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 622 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 623 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 624 | /* Do not inherit to_stopped_by_watchpoint. */ |
65f160a9 | 625 | /* Do not inherit to_watchpoint_addr_within_range. */ |
d03655e4 | 626 | /* Do not inherit to_region_ok_for_hw_watchpoint. */ |
77cdffe9 | 627 | /* Do not inherit to_can_accel_watchpoint_condition. */ |
9c06b0b4 | 628 | /* Do not inherit to_masked_watch_num_registers. */ |
0343661d | 629 | /* Do not inherit to_terminal_init. */ |
ddeaacc9 | 630 | /* Do not inherit to_terminal_inferior. */ |
74fcbef9 | 631 | /* Do not inherit to_terminal_ours_for_output. */ |
e4a733f1 | 632 | /* Do not inherit to_terminal_ours. */ |
c6ea8f79 | 633 | /* Do not inherit to_terminal_save_ours. */ |
e19e919f | 634 | /* Do not inherit to_terminal_info. */ |
7d85a9c0 | 635 | /* Do not inherit to_kill. */ |
7634da87 | 636 | /* Do not inherit to_load. */ |
136d6dae | 637 | /* Do no inherit to_create_inferior. */ |
340ba4bf | 638 | /* Do not inherit to_post_startup_inferior. */ |
5958ebeb | 639 | /* Do not inherit to_insert_fork_catchpoint. */ |
e1a21fb7 | 640 | /* Do not inherit to_remove_fork_catchpoint. */ |
7e18a8dc | 641 | /* Do not inherit to_insert_vfork_catchpoint. */ |
95c3375e | 642 | /* Do not inherit to_remove_vfork_catchpoint. */ |
ee057212 | 643 | /* Do not inherit to_follow_fork. */ |
62f64d7a | 644 | /* Do not inherit to_insert_exec_catchpoint. */ |
cda0f38c | 645 | /* Do not inherit to_remove_exec_catchpoint. */ |
6a9fa051 | 646 | /* Do not inherit to_set_syscall_catchpoint. */ |
0db88c1d | 647 | /* Do not inherit to_has_exited. */ |
82892036 | 648 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 649 | INHERIT (to_can_run, t); |
2455069d | 650 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 651 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
652 | /* Do not inherit to_thread_alive. */ |
653 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 654 | /* Do not inherit to_pid_to_str. */ |
4a7e6dda | 655 | /* Do not inherit to_extra_thread_info. */ |
825828fc | 656 | /* Do not inherit to_thread_name. */ |
46ee7e8d | 657 | /* Do not inherit to_stop. */ |
4b8a223f | 658 | /* Do not inherit to_xfer_partial. */ |
a53f3625 | 659 | /* Do not inherit to_rcmd. */ |
830ca330 | 660 | /* Do not inherit to_pid_to_exec_file. */ |
d9cb0195 | 661 | /* Do not inherit to_log_command. */ |
7998dfc3 | 662 | INHERIT (to_stratum, t); |
c378eb4e MS |
663 | /* Do not inherit to_has_all_memory. */ |
664 | /* Do not inherit to_has_memory. */ | |
665 | /* Do not inherit to_has_stack. */ | |
666 | /* Do not inherit to_has_registers. */ | |
667 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 668 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
669 | /* Do not inherit to_can_async_p. */ |
670 | /* Do not inherit to_is_async_p. */ | |
671 | /* Do not inherit to_async. */ | |
0b5a2719 | 672 | /* Do not inherit to_find_memory_regions. */ |
16f796b1 | 673 | /* Do not inherit to_make_corefile_notes. */ |
3dbafbbb | 674 | /* Do not inherit to_get_bookmark. */ |
9bb9d61d | 675 | /* Do not inherit to_goto_bookmark. */ |
117de6a9 | 676 | /* Do not inherit to_get_thread_local_address. */ |
53e1cfc7 | 677 | /* Do not inherit to_can_execute_reverse. */ |
fe31bf5b | 678 | /* Do not inherit to_execution_direction. */ |
43eba180 | 679 | /* Do not inherit to_thread_architecture. */ |
424163ea | 680 | /* Do not inherit to_read_description. */ |
4229b31d | 681 | /* Do not inherit to_get_ada_task_ptid. */ |
08388c79 | 682 | /* Do not inherit to_search_memory. */ |
a7304748 | 683 | /* Do not inherit to_supports_multi_process. */ |
aab1b22d | 684 | /* Do not inherit to_supports_enable_disable_tracepoint. */ |
9409d39e | 685 | /* Do not inherit to_supports_string_tracing. */ |
5536135b | 686 | /* Do not inherit to_trace_init. */ |
9a980a22 | 687 | /* Do not inherit to_download_tracepoint. */ |
719acc4a | 688 | /* Do not inherit to_can_download_tracepoint. */ |
94eb98b9 | 689 | /* Do not inherit to_download_trace_state_variable. */ |
151f70f1 | 690 | /* Do not inherit to_enable_tracepoint. */ |
05c41993 | 691 | /* Do not inherit to_disable_tracepoint. */ |
86dd181d | 692 | /* Do not inherit to_trace_set_readonly_regions. */ |
25da2e80 | 693 | /* Do not inherit to_trace_start. */ |
4072d4ff | 694 | /* Do not inherit to_get_trace_status. */ |
6fea14cd | 695 | /* Do not inherit to_get_tracepoint_status. */ |
e51c07ea | 696 | /* Do not inherit to_trace_stop. */ |
afc94e66 | 697 | /* Do not inherit to_trace_find. */ |
959bcd0b | 698 | /* Do not inherit to_get_trace_state_variable_value. */ |
a2e6c147 | 699 | /* Do not inherit to_save_trace_data. */ |
1e949b00 | 700 | /* Do not inherit to_upload_tracepoints. */ |
08120467 | 701 | /* Do not inherit to_upload_trace_state_variables. */ |
ace92e7d | 702 | /* Do not inherit to_get_raw_trace_data. */ |
9249843f | 703 | /* Do not inherit to_get_min_fast_tracepoint_insn_len. */ |
0bcfeddf | 704 | /* Do not inherit to_set_disconnected_tracing. */ |
8d526939 | 705 | /* Do not inherit to_set_circular_trace_buffer. */ |
91df8d1d | 706 | /* Do not inherit to_set_trace_buffer_size. */ |
8586ccaa | 707 | /* Do not inherit to_set_trace_notes. */ |
22bcceee | 708 | /* Do not inherit to_get_tib_address. */ |
dcd6917f | 709 | /* Do not inherit to_set_permissions. */ |
4c3e4425 | 710 | /* Do not inherit to_static_tracepoint_marker_at. */ |
d6522a22 | 711 | /* Do not inherit to_static_tracepoint_markers_by_strid. */ |
92155eeb | 712 | /* Do not inherit to_traceframe_info. */ |
d9db5b21 | 713 | /* Do not inherit to_use_agent. */ |
9a7d8b48 | 714 | /* Do not inherit to_can_use_agent. */ |
0de91722 | 715 | /* Do not inherit to_augmented_libraries_svr4_read. */ |
7998dfc3 | 716 | INHERIT (to_magic, t); |
ccfde2a0 TT |
717 | /* Do not inherit |
718 | to_supports_evaluation_of_breakpoint_conditions. */ | |
843f59ed | 719 | /* Do not inherit to_can_run_breakpoint_commands. */ |
fd79ecee | 720 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
721 | /* Do not inherit to_flash_erase. */ |
722 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
723 | } |
724 | #undef INHERIT | |
725 | ||
726 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
727 | it. Some entries are defaulted to a method that print an error, |
728 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
729 | |
730 | #define de_fault(field, value) \ | |
7998dfc3 AC |
731 | if (!current_target.field) \ |
732 | current_target.field = value | |
0d06e24b | 733 | |
2bc416ba DJ |
734 | de_fault (to_open, |
735 | (void (*) (char *, int)) | |
0d06e24b | 736 | tcomplain); |
2bc416ba | 737 | de_fault (to_close, |
de90e03d | 738 | (void (*) (struct target_ops *)) |
0d06e24b | 739 | target_ignore); |
2bc416ba | 740 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
741 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
742 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 743 | nomemory); |
2bc416ba | 744 | de_fault (to_can_run, |
da82bd6b | 745 | (int (*) (struct target_ops *)) |
0d06e24b | 746 | return_zero); |
424163ea | 747 | current_target.to_read_description = NULL; |
32231432 | 748 | |
c906108c | 749 | #undef de_fault |
c906108c | 750 | |
7998dfc3 AC |
751 | /* Finally, position the target-stack beneath the squashed |
752 | "current_target". That way code looking for a non-inherited | |
753 | target method can quickly and simply find it. */ | |
754 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
755 | |
756 | if (targetdebug) | |
757 | setup_target_debug (); | |
c906108c SS |
758 | } |
759 | ||
760 | /* Push a new target type into the stack of the existing target accessors, | |
761 | possibly superseding some of the existing accessors. | |
762 | ||
c906108c SS |
763 | Rather than allow an empty stack, we always have the dummy target at |
764 | the bottom stratum, so we can call the function vectors without | |
765 | checking them. */ | |
766 | ||
b26a4dcb | 767 | void |
fba45db2 | 768 | push_target (struct target_ops *t) |
c906108c | 769 | { |
258b763a | 770 | struct target_ops **cur; |
c906108c SS |
771 | |
772 | /* Check magic number. If wrong, it probably means someone changed | |
773 | the struct definition, but not all the places that initialize one. */ | |
774 | if (t->to_magic != OPS_MAGIC) | |
775 | { | |
c5aa993b JM |
776 | fprintf_unfiltered (gdb_stderr, |
777 | "Magic number of %s target struct wrong\n", | |
778 | t->to_shortname); | |
3e43a32a MS |
779 | internal_error (__FILE__, __LINE__, |
780 | _("failed internal consistency check")); | |
c906108c SS |
781 | } |
782 | ||
258b763a AC |
783 | /* Find the proper stratum to install this target in. */ |
784 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 785 | { |
258b763a | 786 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
787 | break; |
788 | } | |
789 | ||
258b763a | 790 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 791 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
792 | targets to CUR, and not just those at this stratum level. */ |
793 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
794 | { | |
795 | /* There's already something at this stratum level. Close it, | |
796 | and un-hook it from the stack. */ | |
797 | struct target_ops *tmp = (*cur); | |
5d502164 | 798 | |
258b763a AC |
799 | (*cur) = (*cur)->beneath; |
800 | tmp->beneath = NULL; | |
460014f5 | 801 | target_close (tmp); |
258b763a | 802 | } |
c906108c SS |
803 | |
804 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
805 | t->beneath = (*cur); |
806 | (*cur) = t; | |
c906108c SS |
807 | |
808 | update_current_target (); | |
c906108c SS |
809 | } |
810 | ||
2bc416ba | 811 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
812 | Return how many times it was removed (0 or 1). */ |
813 | ||
814 | int | |
fba45db2 | 815 | unpush_target (struct target_ops *t) |
c906108c | 816 | { |
258b763a AC |
817 | struct target_ops **cur; |
818 | struct target_ops *tmp; | |
c906108c | 819 | |
c8d104ad PA |
820 | if (t->to_stratum == dummy_stratum) |
821 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 822 | _("Attempt to unpush the dummy target")); |
c8d104ad | 823 | |
c906108c | 824 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 825 | can only occur once in the target stack. */ |
c906108c | 826 | |
258b763a AC |
827 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
828 | { | |
829 | if ((*cur) == t) | |
830 | break; | |
831 | } | |
c906108c | 832 | |
305436e0 PA |
833 | /* If we don't find target_ops, quit. Only open targets should be |
834 | closed. */ | |
258b763a | 835 | if ((*cur) == NULL) |
305436e0 | 836 | return 0; |
5269965e | 837 | |
c378eb4e | 838 | /* Unchain the target. */ |
258b763a AC |
839 | tmp = (*cur); |
840 | (*cur) = (*cur)->beneath; | |
841 | tmp->beneath = NULL; | |
c906108c SS |
842 | |
843 | update_current_target (); | |
c906108c | 844 | |
305436e0 PA |
845 | /* Finally close the target. Note we do this after unchaining, so |
846 | any target method calls from within the target_close | |
847 | implementation don't end up in T anymore. */ | |
460014f5 | 848 | target_close (t); |
305436e0 | 849 | |
c906108c SS |
850 | return 1; |
851 | } | |
852 | ||
aa76d38d | 853 | void |
460014f5 | 854 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 855 | { |
87ab71f0 | 856 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 857 | { |
aa76d38d PA |
858 | if (!unpush_target (target_stack)) |
859 | { | |
860 | fprintf_unfiltered (gdb_stderr, | |
861 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 862 | target_stack->to_shortname); |
aa76d38d PA |
863 | internal_error (__FILE__, __LINE__, |
864 | _("failed internal consistency check")); | |
865 | break; | |
866 | } | |
867 | } | |
868 | } | |
869 | ||
87ab71f0 | 870 | void |
460014f5 | 871 | pop_all_targets (void) |
87ab71f0 | 872 | { |
460014f5 | 873 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
874 | } |
875 | ||
c0edd9ed JK |
876 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
877 | ||
878 | int | |
879 | target_is_pushed (struct target_ops *t) | |
880 | { | |
881 | struct target_ops **cur; | |
882 | ||
883 | /* Check magic number. If wrong, it probably means someone changed | |
884 | the struct definition, but not all the places that initialize one. */ | |
885 | if (t->to_magic != OPS_MAGIC) | |
886 | { | |
887 | fprintf_unfiltered (gdb_stderr, | |
888 | "Magic number of %s target struct wrong\n", | |
889 | t->to_shortname); | |
3e43a32a MS |
890 | internal_error (__FILE__, __LINE__, |
891 | _("failed internal consistency check")); | |
c0edd9ed JK |
892 | } |
893 | ||
894 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
895 | if (*cur == t) | |
896 | return 1; | |
897 | ||
898 | return 0; | |
899 | } | |
900 | ||
72f5cf0e | 901 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
902 | current thread's thread-local storage with offset OFFSET. */ |
903 | CORE_ADDR | |
904 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
905 | { | |
906 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
907 | struct target_ops *target; |
908 | ||
909 | for (target = current_target.beneath; | |
910 | target != NULL; | |
911 | target = target->beneath) | |
912 | { | |
913 | if (target->to_get_thread_local_address != NULL) | |
914 | break; | |
915 | } | |
9e35dae4 | 916 | |
117de6a9 | 917 | if (target != NULL |
f5656ead | 918 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
919 | { |
920 | ptid_t ptid = inferior_ptid; | |
921 | volatile struct gdb_exception ex; | |
922 | ||
923 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
924 | { | |
925 | CORE_ADDR lm_addr; | |
926 | ||
927 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 928 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
929 | objfile); |
930 | /* If it's 0, throw the appropriate exception. */ | |
931 | if (lm_addr == 0) | |
932 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
933 | _("TLS load module not found")); | |
934 | ||
3e43a32a MS |
935 | addr = target->to_get_thread_local_address (target, ptid, |
936 | lm_addr, offset); | |
9e35dae4 DJ |
937 | } |
938 | /* If an error occurred, print TLS related messages here. Otherwise, | |
939 | throw the error to some higher catcher. */ | |
940 | if (ex.reason < 0) | |
941 | { | |
942 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
943 | ||
944 | switch (ex.error) | |
945 | { | |
946 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
947 | error (_("Cannot find thread-local variables " |
948 | "in this thread library.")); | |
9e35dae4 DJ |
949 | break; |
950 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
951 | if (objfile_is_library) | |
952 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 953 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
954 | else |
955 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 956 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
957 | break; |
958 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
959 | if (objfile_is_library) | |
960 | error (_("The inferior has not yet allocated storage for" | |
961 | " thread-local variables in\n" | |
962 | "the shared library `%s'\n" | |
963 | "for %s"), | |
4262abfb | 964 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
965 | else |
966 | error (_("The inferior has not yet allocated storage for" | |
967 | " thread-local variables in\n" | |
968 | "the executable `%s'\n" | |
969 | "for %s"), | |
4262abfb | 970 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
971 | break; |
972 | case TLS_GENERIC_ERROR: | |
973 | if (objfile_is_library) | |
974 | error (_("Cannot find thread-local storage for %s, " | |
975 | "shared library %s:\n%s"), | |
976 | target_pid_to_str (ptid), | |
4262abfb | 977 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
978 | else |
979 | error (_("Cannot find thread-local storage for %s, " | |
980 | "executable file %s:\n%s"), | |
981 | target_pid_to_str (ptid), | |
4262abfb | 982 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
983 | break; |
984 | default: | |
985 | throw_exception (ex); | |
986 | break; | |
987 | } | |
988 | } | |
989 | } | |
990 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
991 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
992 | else | |
993 | error (_("Cannot find thread-local variables on this target")); | |
994 | ||
995 | return addr; | |
996 | } | |
997 | ||
6be7b56e | 998 | const char * |
9b409511 | 999 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1000 | { |
1001 | #define CASE(X) case X: return #X | |
1002 | switch (err) | |
1003 | { | |
1004 | CASE(TARGET_XFER_E_IO); | |
1005 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1006 | default: | |
1007 | return "<unknown>"; | |
1008 | } | |
1009 | #undef CASE | |
1010 | }; | |
1011 | ||
1012 | ||
c906108c SS |
1013 | #undef MIN |
1014 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1015 | ||
1016 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1017 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1018 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1019 | is responsible for freeing it. Return the number of bytes successfully | |
1020 | read. */ | |
1021 | ||
1022 | int | |
fba45db2 | 1023 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1024 | { |
c2e8b827 | 1025 | int tlen, offset, i; |
1b0ba102 | 1026 | gdb_byte buf[4]; |
c906108c SS |
1027 | int errcode = 0; |
1028 | char *buffer; | |
1029 | int buffer_allocated; | |
1030 | char *bufptr; | |
1031 | unsigned int nbytes_read = 0; | |
1032 | ||
6217bf3e MS |
1033 | gdb_assert (string); |
1034 | ||
c906108c SS |
1035 | /* Small for testing. */ |
1036 | buffer_allocated = 4; | |
1037 | buffer = xmalloc (buffer_allocated); | |
1038 | bufptr = buffer; | |
1039 | ||
c906108c SS |
1040 | while (len > 0) |
1041 | { | |
1042 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1043 | offset = memaddr & 3; | |
1044 | ||
1b0ba102 | 1045 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1046 | if (errcode != 0) |
1047 | { | |
1048 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1049 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1050 | a single byte. */ |
1051 | tlen = 1; | |
1052 | offset = 0; | |
b8eb5af0 | 1053 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1054 | if (errcode != 0) |
1055 | goto done; | |
1056 | } | |
1057 | ||
1058 | if (bufptr - buffer + tlen > buffer_allocated) | |
1059 | { | |
1060 | unsigned int bytes; | |
5d502164 | 1061 | |
c906108c SS |
1062 | bytes = bufptr - buffer; |
1063 | buffer_allocated *= 2; | |
1064 | buffer = xrealloc (buffer, buffer_allocated); | |
1065 | bufptr = buffer + bytes; | |
1066 | } | |
1067 | ||
1068 | for (i = 0; i < tlen; i++) | |
1069 | { | |
1070 | *bufptr++ = buf[i + offset]; | |
1071 | if (buf[i + offset] == '\000') | |
1072 | { | |
1073 | nbytes_read += i + 1; | |
1074 | goto done; | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | memaddr += tlen; | |
1079 | len -= tlen; | |
1080 | nbytes_read += tlen; | |
1081 | } | |
c5aa993b | 1082 | done: |
6217bf3e | 1083 | *string = buffer; |
c906108c SS |
1084 | if (errnop != NULL) |
1085 | *errnop = errcode; | |
c906108c SS |
1086 | return nbytes_read; |
1087 | } | |
1088 | ||
07b82ea5 PA |
1089 | struct target_section_table * |
1090 | target_get_section_table (struct target_ops *target) | |
1091 | { | |
07b82ea5 PA |
1092 | if (targetdebug) |
1093 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1094 | ||
7e35c012 | 1095 | return (*target->to_get_section_table) (target); |
07b82ea5 PA |
1096 | } |
1097 | ||
8db32d44 | 1098 | /* Find a section containing ADDR. */ |
07b82ea5 | 1099 | |
0542c86d | 1100 | struct target_section * |
8db32d44 AC |
1101 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1102 | { | |
07b82ea5 | 1103 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1104 | struct target_section *secp; |
07b82ea5 PA |
1105 | |
1106 | if (table == NULL) | |
1107 | return NULL; | |
1108 | ||
1109 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1110 | { |
1111 | if (addr >= secp->addr && addr < secp->endaddr) | |
1112 | return secp; | |
1113 | } | |
1114 | return NULL; | |
1115 | } | |
1116 | ||
e6e4e701 PA |
1117 | /* Read memory from the live target, even if currently inspecting a |
1118 | traceframe. The return is the same as that of target_read. */ | |
1119 | ||
9b409511 | 1120 | static enum target_xfer_status |
e6e4e701 | 1121 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1122 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1123 | ULONGEST *xfered_len) | |
e6e4e701 | 1124 | { |
9b409511 | 1125 | enum target_xfer_status ret; |
e6e4e701 PA |
1126 | struct cleanup *cleanup; |
1127 | ||
1128 | /* Switch momentarily out of tfind mode so to access live memory. | |
1129 | Note that this must not clear global state, such as the frame | |
1130 | cache, which must still remain valid for the previous traceframe. | |
1131 | We may be _building_ the frame cache at this point. */ | |
1132 | cleanup = make_cleanup_restore_traceframe_number (); | |
1133 | set_traceframe_number (-1); | |
1134 | ||
9b409511 YQ |
1135 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1136 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1137 | |
1138 | do_cleanups (cleanup); | |
1139 | return ret; | |
1140 | } | |
1141 | ||
1142 | /* Using the set of read-only target sections of OPS, read live | |
1143 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1144 | top-most target again. |
1145 | ||
1146 | For interface/parameters/return description see target.h, | |
1147 | to_xfer_partial. */ | |
e6e4e701 | 1148 | |
9b409511 | 1149 | static enum target_xfer_status |
e6e4e701 PA |
1150 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1151 | enum target_object object, | |
1152 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1153 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1154 | { |
1155 | struct target_section *secp; | |
1156 | struct target_section_table *table; | |
1157 | ||
1158 | secp = target_section_by_addr (ops, memaddr); | |
1159 | if (secp != NULL | |
2b2848e2 DE |
1160 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1161 | secp->the_bfd_section) | |
e6e4e701 PA |
1162 | & SEC_READONLY)) |
1163 | { | |
1164 | struct target_section *p; | |
1165 | ULONGEST memend = memaddr + len; | |
1166 | ||
1167 | table = target_get_section_table (ops); | |
1168 | ||
1169 | for (p = table->sections; p < table->sections_end; p++) | |
1170 | { | |
1171 | if (memaddr >= p->addr) | |
1172 | { | |
1173 | if (memend <= p->endaddr) | |
1174 | { | |
1175 | /* Entire transfer is within this section. */ | |
1176 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1177 | readbuf, len, xfered_len); |
e6e4e701 PA |
1178 | } |
1179 | else if (memaddr >= p->endaddr) | |
1180 | { | |
1181 | /* This section ends before the transfer starts. */ | |
1182 | continue; | |
1183 | } | |
1184 | else | |
1185 | { | |
1186 | /* This section overlaps the transfer. Just do half. */ | |
1187 | len = p->endaddr - memaddr; | |
1188 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1189 | readbuf, len, xfered_len); |
e6e4e701 PA |
1190 | } |
1191 | } | |
1192 | } | |
1193 | } | |
1194 | ||
9b409511 | 1195 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1196 | } |
1197 | ||
9f713294 YQ |
1198 | /* Read memory from more than one valid target. A core file, for |
1199 | instance, could have some of memory but delegate other bits to | |
1200 | the target below it. So, we must manually try all targets. */ | |
1201 | ||
9b409511 | 1202 | static enum target_xfer_status |
17fde6d0 | 1203 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1204 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1205 | ULONGEST *xfered_len) | |
9f713294 | 1206 | { |
9b409511 | 1207 | enum target_xfer_status res; |
9f713294 YQ |
1208 | |
1209 | do | |
1210 | { | |
1211 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1212 | readbuf, writebuf, memaddr, len, |
1213 | xfered_len); | |
1214 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1215 | break; |
1216 | ||
633785ff MM |
1217 | /* Stop if the target reports that the memory is not available. */ |
1218 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1219 | break; | |
1220 | ||
9f713294 YQ |
1221 | /* We want to continue past core files to executables, but not |
1222 | past a running target's memory. */ | |
1223 | if (ops->to_has_all_memory (ops)) | |
1224 | break; | |
1225 | ||
1226 | ops = ops->beneath; | |
1227 | } | |
1228 | while (ops != NULL); | |
1229 | ||
1230 | return res; | |
1231 | } | |
1232 | ||
7f79c47e DE |
1233 | /* Perform a partial memory transfer. |
1234 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1235 | |
9b409511 | 1236 | static enum target_xfer_status |
f0ba3972 | 1237 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1238 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1239 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1240 | { |
9b409511 | 1241 | enum target_xfer_status res; |
cf7a04e8 DJ |
1242 | int reg_len; |
1243 | struct mem_region *region; | |
4e5d721f | 1244 | struct inferior *inf; |
cf7a04e8 | 1245 | |
07b82ea5 PA |
1246 | /* For accesses to unmapped overlay sections, read directly from |
1247 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1248 | if (readbuf != NULL && overlay_debugging) | |
1249 | { | |
1250 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1251 | |
07b82ea5 PA |
1252 | if (pc_in_unmapped_range (memaddr, section)) |
1253 | { | |
1254 | struct target_section_table *table | |
1255 | = target_get_section_table (ops); | |
1256 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1257 | |
07b82ea5 PA |
1258 | memaddr = overlay_mapped_address (memaddr, section); |
1259 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1260 | memaddr, len, xfered_len, |
07b82ea5 PA |
1261 | table->sections, |
1262 | table->sections_end, | |
1263 | section_name); | |
1264 | } | |
1265 | } | |
1266 | ||
1267 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1268 | if (readbuf != NULL && trust_readonly) |
1269 | { | |
0542c86d | 1270 | struct target_section *secp; |
07b82ea5 | 1271 | struct target_section_table *table; |
cf7a04e8 DJ |
1272 | |
1273 | secp = target_section_by_addr (ops, memaddr); | |
1274 | if (secp != NULL | |
2b2848e2 DE |
1275 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1276 | secp->the_bfd_section) | |
cf7a04e8 | 1277 | & SEC_READONLY)) |
07b82ea5 PA |
1278 | { |
1279 | table = target_get_section_table (ops); | |
1280 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1281 | memaddr, len, xfered_len, |
07b82ea5 PA |
1282 | table->sections, |
1283 | table->sections_end, | |
1284 | NULL); | |
1285 | } | |
98646950 UW |
1286 | } |
1287 | ||
e6e4e701 PA |
1288 | /* If reading unavailable memory in the context of traceframes, and |
1289 | this address falls within a read-only section, fallback to | |
1290 | reading from live memory. */ | |
1291 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1292 | { | |
1293 | VEC(mem_range_s) *available; | |
1294 | ||
1295 | /* If we fail to get the set of available memory, then the | |
1296 | target does not support querying traceframe info, and so we | |
1297 | attempt reading from the traceframe anyway (assuming the | |
1298 | target implements the old QTro packet then). */ | |
1299 | if (traceframe_available_memory (&available, memaddr, len)) | |
1300 | { | |
1301 | struct cleanup *old_chain; | |
1302 | ||
1303 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1304 | ||
1305 | if (VEC_empty (mem_range_s, available) | |
1306 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1307 | { | |
1308 | /* Don't read into the traceframe's available | |
1309 | memory. */ | |
1310 | if (!VEC_empty (mem_range_s, available)) | |
1311 | { | |
1312 | LONGEST oldlen = len; | |
1313 | ||
1314 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1315 | gdb_assert (len <= oldlen); | |
1316 | } | |
1317 | ||
1318 | do_cleanups (old_chain); | |
1319 | ||
1320 | /* This goes through the topmost target again. */ | |
1321 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1322 | readbuf, memaddr, |
1323 | len, xfered_len); | |
1324 | if (res == TARGET_XFER_OK) | |
1325 | return TARGET_XFER_OK; | |
1326 | else | |
1327 | { | |
1328 | /* No use trying further, we know some memory starting | |
1329 | at MEMADDR isn't available. */ | |
1330 | *xfered_len = len; | |
1331 | return TARGET_XFER_E_UNAVAILABLE; | |
1332 | } | |
e6e4e701 PA |
1333 | } |
1334 | ||
1335 | /* Don't try to read more than how much is available, in | |
1336 | case the target implements the deprecated QTro packet to | |
1337 | cater for older GDBs (the target's knowledge of read-only | |
1338 | sections may be outdated by now). */ | |
1339 | len = VEC_index (mem_range_s, available, 0)->length; | |
1340 | ||
1341 | do_cleanups (old_chain); | |
1342 | } | |
1343 | } | |
1344 | ||
cf7a04e8 DJ |
1345 | /* Try GDB's internal data cache. */ |
1346 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1347 | /* region->hi == 0 means there's no upper bound. */ |
1348 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1349 | reg_len = len; |
1350 | else | |
1351 | reg_len = region->hi - memaddr; | |
1352 | ||
1353 | switch (region->attrib.mode) | |
1354 | { | |
1355 | case MEM_RO: | |
1356 | if (writebuf != NULL) | |
2ed4b548 | 1357 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1358 | break; |
1359 | ||
1360 | case MEM_WO: | |
1361 | if (readbuf != NULL) | |
2ed4b548 | 1362 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1363 | break; |
a76d924d DJ |
1364 | |
1365 | case MEM_FLASH: | |
1366 | /* We only support writing to flash during "load" for now. */ | |
1367 | if (writebuf != NULL) | |
1368 | error (_("Writing to flash memory forbidden in this context")); | |
1369 | break; | |
4b5752d0 VP |
1370 | |
1371 | case MEM_NONE: | |
2ed4b548 | 1372 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1373 | } |
1374 | ||
6c95b8df PA |
1375 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1376 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1377 | else | |
1378 | inf = NULL; | |
4e5d721f DE |
1379 | |
1380 | if (inf != NULL | |
2f4d8875 PA |
1381 | /* The dcache reads whole cache lines; that doesn't play well |
1382 | with reading from a trace buffer, because reading outside of | |
1383 | the collected memory range fails. */ | |
1384 | && get_traceframe_number () == -1 | |
4e5d721f | 1385 | && (region->attrib.cache |
29453a14 YQ |
1386 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1387 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1388 | { |
2a2f9fe4 | 1389 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1390 | int l; |
2a2f9fe4 | 1391 | |
cf7a04e8 | 1392 | if (readbuf != NULL) |
9b409511 | 1393 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1394 | else |
1395 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1396 | correctness dcache_xfer_memory should take readbuf and | |
1397 | writebuf. */ | |
9b409511 | 1398 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1399 | reg_len, 1); |
9b409511 YQ |
1400 | if (l <= 0) |
1401 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1402 | else |
9b409511 YQ |
1403 | { |
1404 | *xfered_len = (ULONGEST) l; | |
1405 | return TARGET_XFER_OK; | |
1406 | } | |
cf7a04e8 DJ |
1407 | } |
1408 | ||
1409 | /* If none of those methods found the memory we wanted, fall back | |
1410 | to a target partial transfer. Normally a single call to | |
1411 | to_xfer_partial is enough; if it doesn't recognize an object | |
1412 | it will call the to_xfer_partial of the next target down. | |
1413 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1414 | object which can be read from more than one valid target. |
1415 | A core file, for instance, could have some of memory but | |
1416 | delegate other bits to the target below it. So, we must | |
1417 | manually try all targets. */ | |
1418 | ||
1419 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1420 | xfered_len); | |
cf7a04e8 | 1421 | |
41dcd03f DE |
1422 | /* Make sure the cache gets updated no matter what - if we are writing |
1423 | to the stack. Even if this write is not tagged as such, we still need | |
1424 | to update the cache. */ | |
1425 | ||
9b409511 | 1426 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1427 | && inf != NULL |
1428 | && writebuf != NULL | |
f2de9785 | 1429 | && target_dcache_init_p () |
41dcd03f | 1430 | && !region->attrib.cache |
29453a14 YQ |
1431 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1432 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1433 | { |
f2de9785 | 1434 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1435 | |
9b409511 | 1436 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1437 | } |
1438 | ||
cf7a04e8 DJ |
1439 | /* If we still haven't got anything, return the last error. We |
1440 | give up. */ | |
1441 | return res; | |
0779438d AC |
1442 | } |
1443 | ||
f0ba3972 PA |
1444 | /* Perform a partial memory transfer. For docs see target.h, |
1445 | to_xfer_partial. */ | |
1446 | ||
9b409511 | 1447 | static enum target_xfer_status |
f0ba3972 | 1448 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1449 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1450 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1451 | { |
9b409511 | 1452 | enum target_xfer_status res; |
f0ba3972 PA |
1453 | |
1454 | /* Zero length requests are ok and require no work. */ | |
1455 | if (len == 0) | |
9b409511 | 1456 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1457 | |
1458 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1459 | breakpoint insns, thus hiding out from higher layers whether | |
1460 | there are software breakpoints inserted in the code stream. */ | |
1461 | if (readbuf != NULL) | |
1462 | { | |
9b409511 YQ |
1463 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1464 | xfered_len); | |
f0ba3972 | 1465 | |
9b409511 | 1466 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1467 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1468 | } | |
1469 | else | |
1470 | { | |
1471 | void *buf; | |
1472 | struct cleanup *old_chain; | |
1473 | ||
67c059c2 AB |
1474 | /* A large write request is likely to be partially satisfied |
1475 | by memory_xfer_partial_1. We will continually malloc | |
1476 | and free a copy of the entire write request for breakpoint | |
1477 | shadow handling even though we only end up writing a small | |
1478 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1479 | len = min (4096, len); | |
1480 | ||
f0ba3972 PA |
1481 | buf = xmalloc (len); |
1482 | old_chain = make_cleanup (xfree, buf); | |
1483 | memcpy (buf, writebuf, len); | |
1484 | ||
1485 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1486 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1487 | xfered_len); | |
f0ba3972 PA |
1488 | |
1489 | do_cleanups (old_chain); | |
1490 | } | |
1491 | ||
1492 | return res; | |
1493 | } | |
1494 | ||
8defab1a DJ |
1495 | static void |
1496 | restore_show_memory_breakpoints (void *arg) | |
1497 | { | |
1498 | show_memory_breakpoints = (uintptr_t) arg; | |
1499 | } | |
1500 | ||
1501 | struct cleanup * | |
1502 | make_show_memory_breakpoints_cleanup (int show) | |
1503 | { | |
1504 | int current = show_memory_breakpoints; | |
8defab1a | 1505 | |
5d502164 | 1506 | show_memory_breakpoints = show; |
8defab1a DJ |
1507 | return make_cleanup (restore_show_memory_breakpoints, |
1508 | (void *) (uintptr_t) current); | |
1509 | } | |
1510 | ||
7f79c47e DE |
1511 | /* For docs see target.h, to_xfer_partial. */ |
1512 | ||
9b409511 | 1513 | enum target_xfer_status |
27394598 AC |
1514 | target_xfer_partial (struct target_ops *ops, |
1515 | enum target_object object, const char *annex, | |
4ac248ca | 1516 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1517 | ULONGEST offset, ULONGEST len, |
1518 | ULONGEST *xfered_len) | |
27394598 | 1519 | { |
9b409511 | 1520 | enum target_xfer_status retval; |
27394598 AC |
1521 | |
1522 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1523 | |
ce6d0892 YQ |
1524 | /* Transfer is done when LEN is zero. */ |
1525 | if (len == 0) | |
9b409511 | 1526 | return TARGET_XFER_EOF; |
ce6d0892 | 1527 | |
d914c394 SS |
1528 | if (writebuf && !may_write_memory) |
1529 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1530 | core_addr_to_string_nz (offset), plongest (len)); | |
1531 | ||
9b409511 YQ |
1532 | *xfered_len = 0; |
1533 | ||
cf7a04e8 DJ |
1534 | /* If this is a memory transfer, let the memory-specific code |
1535 | have a look at it instead. Memory transfers are more | |
1536 | complicated. */ | |
29453a14 YQ |
1537 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1538 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1539 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1540 | writebuf, offset, len, xfered_len); |
9f713294 | 1541 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1542 | { |
9f713294 | 1543 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1544 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1545 | xfered_len); | |
cf7a04e8 | 1546 | } |
9f713294 YQ |
1547 | else |
1548 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1549 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1550 | |
27394598 AC |
1551 | if (targetdebug) |
1552 | { | |
1553 | const unsigned char *myaddr = NULL; | |
1554 | ||
1555 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1556 | "%s:target_xfer_partial " |
9b409511 | 1557 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1558 | ops->to_shortname, |
1559 | (int) object, | |
1560 | (annex ? annex : "(null)"), | |
53b71562 JB |
1561 | host_address_to_string (readbuf), |
1562 | host_address_to_string (writebuf), | |
0b1553bc | 1563 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1564 | pulongest (len), retval, |
1565 | pulongest (*xfered_len)); | |
27394598 AC |
1566 | |
1567 | if (readbuf) | |
1568 | myaddr = readbuf; | |
1569 | if (writebuf) | |
1570 | myaddr = writebuf; | |
9b409511 | 1571 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1572 | { |
1573 | int i; | |
2bc416ba | 1574 | |
27394598 | 1575 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1576 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1577 | { |
53b71562 | 1578 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1579 | { |
1580 | if (targetdebug < 2 && i > 0) | |
1581 | { | |
1582 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1583 | break; | |
1584 | } | |
1585 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1586 | } | |
2bc416ba | 1587 | |
27394598 AC |
1588 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1589 | } | |
1590 | } | |
2bc416ba | 1591 | |
27394598 AC |
1592 | fputc_unfiltered ('\n', gdb_stdlog); |
1593 | } | |
9b409511 YQ |
1594 | |
1595 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1596 | properly. Do assertion after printing debug messages, so that we | |
1597 | can find more clues on assertion failure from debugging messages. */ | |
1598 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1599 | gdb_assert (*xfered_len > 0); | |
1600 | ||
27394598 AC |
1601 | return retval; |
1602 | } | |
1603 | ||
578d3588 PA |
1604 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1605 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1606 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1607 | |
1608 | If an error occurs, no guarantee is made about the contents of the data at | |
1609 | MYADDR. In particular, the caller should not depend upon partial reads | |
1610 | filling the buffer with good data. There is no way for the caller to know | |
1611 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1612 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1613 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1614 | |
1615 | int | |
1b162304 | 1616 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1617 | { |
c35b1492 PA |
1618 | /* Dispatch to the topmost target, not the flattened current_target. |
1619 | Memory accesses check target->to_has_(all_)memory, and the | |
1620 | flattened target doesn't inherit those. */ | |
1621 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1622 | myaddr, memaddr, len) == len) |
1623 | return 0; | |
0779438d | 1624 | else |
578d3588 | 1625 | return TARGET_XFER_E_IO; |
c906108c SS |
1626 | } |
1627 | ||
aee4bf85 PA |
1628 | /* Like target_read_memory, but specify explicitly that this is a read |
1629 | from the target's raw memory. That is, this read bypasses the | |
1630 | dcache, breakpoint shadowing, etc. */ | |
1631 | ||
1632 | int | |
1633 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1634 | { | |
1635 | /* See comment in target_read_memory about why the request starts at | |
1636 | current_target.beneath. */ | |
1637 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1638 | myaddr, memaddr, len) == len) | |
1639 | return 0; | |
1640 | else | |
1641 | return TARGET_XFER_E_IO; | |
1642 | } | |
1643 | ||
4e5d721f DE |
1644 | /* Like target_read_memory, but specify explicitly that this is a read from |
1645 | the target's stack. This may trigger different cache behavior. */ | |
1646 | ||
1647 | int | |
45aa4659 | 1648 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1649 | { |
aee4bf85 PA |
1650 | /* See comment in target_read_memory about why the request starts at |
1651 | current_target.beneath. */ | |
4e5d721f DE |
1652 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1653 | myaddr, memaddr, len) == len) | |
1654 | return 0; | |
1655 | else | |
578d3588 | 1656 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1657 | } |
1658 | ||
29453a14 YQ |
1659 | /* Like target_read_memory, but specify explicitly that this is a read from |
1660 | the target's code. This may trigger different cache behavior. */ | |
1661 | ||
1662 | int | |
1663 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1664 | { | |
aee4bf85 PA |
1665 | /* See comment in target_read_memory about why the request starts at |
1666 | current_target.beneath. */ | |
29453a14 YQ |
1667 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1668 | myaddr, memaddr, len) == len) | |
1669 | return 0; | |
1670 | else | |
1671 | return TARGET_XFER_E_IO; | |
1672 | } | |
1673 | ||
7f79c47e | 1674 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1675 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1676 | error occurs. If an error occurs, no guarantee is made about how |
1677 | much data got written. Callers that can deal with partial writes | |
1678 | should call target_write. */ | |
7f79c47e | 1679 | |
c906108c | 1680 | int |
45aa4659 | 1681 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1682 | { |
aee4bf85 PA |
1683 | /* See comment in target_read_memory about why the request starts at |
1684 | current_target.beneath. */ | |
c35b1492 | 1685 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1686 | myaddr, memaddr, len) == len) |
1687 | return 0; | |
0779438d | 1688 | else |
578d3588 | 1689 | return TARGET_XFER_E_IO; |
c906108c | 1690 | } |
c5aa993b | 1691 | |
f0ba3972 | 1692 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1693 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1694 | if any error occurs. If an error occurs, no guarantee is made |
1695 | about how much data got written. Callers that can deal with | |
1696 | partial writes should call target_write. */ | |
f0ba3972 PA |
1697 | |
1698 | int | |
45aa4659 | 1699 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1700 | { |
aee4bf85 PA |
1701 | /* See comment in target_read_memory about why the request starts at |
1702 | current_target.beneath. */ | |
f0ba3972 PA |
1703 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1704 | myaddr, memaddr, len) == len) | |
1705 | return 0; | |
1706 | else | |
578d3588 | 1707 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1708 | } |
1709 | ||
fd79ecee DJ |
1710 | /* Fetch the target's memory map. */ |
1711 | ||
1712 | VEC(mem_region_s) * | |
1713 | target_memory_map (void) | |
1714 | { | |
1715 | VEC(mem_region_s) *result; | |
1716 | struct mem_region *last_one, *this_one; | |
1717 | int ix; | |
1718 | struct target_ops *t; | |
1719 | ||
1720 | if (targetdebug) | |
1721 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1722 | ||
6b2c5a57 | 1723 | result = current_target.to_memory_map (¤t_target); |
fd79ecee DJ |
1724 | if (result == NULL) |
1725 | return NULL; | |
1726 | ||
1727 | qsort (VEC_address (mem_region_s, result), | |
1728 | VEC_length (mem_region_s, result), | |
1729 | sizeof (struct mem_region), mem_region_cmp); | |
1730 | ||
1731 | /* Check that regions do not overlap. Simultaneously assign | |
1732 | a numbering for the "mem" commands to use to refer to | |
1733 | each region. */ | |
1734 | last_one = NULL; | |
1735 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1736 | { | |
1737 | this_one->number = ix; | |
1738 | ||
1739 | if (last_one && last_one->hi > this_one->lo) | |
1740 | { | |
1741 | warning (_("Overlapping regions in memory map: ignoring")); | |
1742 | VEC_free (mem_region_s, result); | |
1743 | return NULL; | |
1744 | } | |
1745 | last_one = this_one; | |
1746 | } | |
1747 | ||
1748 | return result; | |
1749 | } | |
1750 | ||
a76d924d DJ |
1751 | void |
1752 | target_flash_erase (ULONGEST address, LONGEST length) | |
1753 | { | |
e8a6c6ac TT |
1754 | if (targetdebug) |
1755 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1756 | hex_string (address), phex (length, 0)); | |
1757 | current_target.to_flash_erase (¤t_target, address, length); | |
a76d924d DJ |
1758 | } |
1759 | ||
1760 | void | |
1761 | target_flash_done (void) | |
1762 | { | |
f6fb2925 TT |
1763 | if (targetdebug) |
1764 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1765 | current_target.to_flash_done (¤t_target); | |
a76d924d DJ |
1766 | } |
1767 | ||
920d2a44 AC |
1768 | static void |
1769 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1770 | struct cmd_list_element *c, const char *value) | |
1771 | { | |
3e43a32a MS |
1772 | fprintf_filtered (file, |
1773 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1774 | value); |
1775 | } | |
3a11626d | 1776 | |
1e3ff5ad AC |
1777 | /* More generic transfers. */ |
1778 | ||
9b409511 | 1779 | static enum target_xfer_status |
8aa91c1e | 1780 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1781 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
1782 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
1783 | ULONGEST *xfered_len) | |
0088c768 AC |
1784 | { |
1785 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1786 | && ops->deprecated_xfer_memory != NULL) |
1787 | /* If available, fall back to the target's | |
1788 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1789 | { |
4b8a223f | 1790 | int xfered = -1; |
5d502164 | 1791 | |
0088c768 | 1792 | errno = 0; |
4b8a223f AC |
1793 | if (writebuf != NULL) |
1794 | { | |
1795 | void *buffer = xmalloc (len); | |
1796 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1797 | |
4b8a223f | 1798 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1799 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1800 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1801 | do_cleanups (cleanup); |
1802 | } | |
1803 | if (readbuf != NULL) | |
244e85c8 MS |
1804 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1805 | 0/*read*/, NULL, ops); | |
0088c768 | 1806 | if (xfered > 0) |
9b409511 YQ |
1807 | { |
1808 | *xfered_len = (ULONGEST) xfered; | |
1809 | return TARGET_XFER_E_IO; | |
1810 | } | |
0088c768 | 1811 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
1812 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1813 | ERRNO as one indication of an error. */ | |
9b409511 | 1814 | return TARGET_XFER_EOF; |
0088c768 | 1815 | else |
9b409511 | 1816 | return TARGET_XFER_E_IO; |
0088c768 | 1817 | } |
0088c768 | 1818 | else |
6b84065d TT |
1819 | { |
1820 | gdb_assert (ops->beneath != NULL); | |
1821 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1822 | readbuf, writebuf, offset, len, | |
1823 | xfered_len); | |
1824 | } | |
0088c768 AC |
1825 | } |
1826 | ||
7f79c47e | 1827 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1828 | |
9b409511 | 1829 | static enum target_xfer_status |
1e3ff5ad AC |
1830 | target_read_partial (struct target_ops *ops, |
1831 | enum target_object object, | |
1b0ba102 | 1832 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1833 | ULONGEST offset, ULONGEST len, |
1834 | ULONGEST *xfered_len) | |
1e3ff5ad | 1835 | { |
9b409511 YQ |
1836 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1837 | xfered_len); | |
1e3ff5ad AC |
1838 | } |
1839 | ||
8a55ffb0 | 1840 | static enum target_xfer_status |
1e3ff5ad AC |
1841 | target_write_partial (struct target_ops *ops, |
1842 | enum target_object object, | |
1b0ba102 | 1843 | const char *annex, const gdb_byte *buf, |
9b409511 | 1844 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1845 | { |
9b409511 YQ |
1846 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1847 | xfered_len); | |
1e3ff5ad AC |
1848 | } |
1849 | ||
1850 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1851 | |
1852 | /* For docs on target_read see target.h. */ | |
1853 | ||
1e3ff5ad AC |
1854 | LONGEST |
1855 | target_read (struct target_ops *ops, | |
1856 | enum target_object object, | |
1b0ba102 | 1857 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1858 | ULONGEST offset, LONGEST len) |
1859 | { | |
1860 | LONGEST xfered = 0; | |
5d502164 | 1861 | |
1e3ff5ad AC |
1862 | while (xfered < len) |
1863 | { | |
9b409511 YQ |
1864 | ULONGEST xfered_len; |
1865 | enum target_xfer_status status; | |
1866 | ||
1867 | status = target_read_partial (ops, object, annex, | |
1868 | (gdb_byte *) buf + xfered, | |
1869 | offset + xfered, len - xfered, | |
1870 | &xfered_len); | |
5d502164 | 1871 | |
1e3ff5ad | 1872 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1873 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1874 | return xfered; |
9b409511 YQ |
1875 | else if (status == TARGET_XFER_OK) |
1876 | { | |
1877 | xfered += xfered_len; | |
1878 | QUIT; | |
1879 | } | |
1880 | else | |
0088c768 | 1881 | return -1; |
9b409511 | 1882 | |
1e3ff5ad AC |
1883 | } |
1884 | return len; | |
1885 | } | |
1886 | ||
f1a507a1 JB |
1887 | /* Assuming that the entire [begin, end) range of memory cannot be |
1888 | read, try to read whatever subrange is possible to read. | |
1889 | ||
1890 | The function returns, in RESULT, either zero or one memory block. | |
1891 | If there's a readable subrange at the beginning, it is completely | |
1892 | read and returned. Any further readable subrange will not be read. | |
1893 | Otherwise, if there's a readable subrange at the end, it will be | |
1894 | completely read and returned. Any readable subranges before it | |
1895 | (obviously, not starting at the beginning), will be ignored. In | |
1896 | other cases -- either no readable subrange, or readable subrange(s) | |
1897 | that is neither at the beginning, or end, nothing is returned. | |
1898 | ||
1899 | The purpose of this function is to handle a read across a boundary | |
1900 | of accessible memory in a case when memory map is not available. | |
1901 | The above restrictions are fine for this case, but will give | |
1902 | incorrect results if the memory is 'patchy'. However, supporting | |
1903 | 'patchy' memory would require trying to read every single byte, | |
1904 | and it seems unacceptable solution. Explicit memory map is | |
1905 | recommended for this case -- and target_read_memory_robust will | |
1906 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1907 | |
1908 | static void | |
3e43a32a MS |
1909 | read_whatever_is_readable (struct target_ops *ops, |
1910 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1911 | VEC(memory_read_result_s) **result) |
d5086790 | 1912 | { |
f1a507a1 | 1913 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1914 | ULONGEST current_begin = begin; |
1915 | ULONGEST current_end = end; | |
1916 | int forward; | |
1917 | memory_read_result_s r; | |
9b409511 | 1918 | ULONGEST xfered_len; |
8dedea02 VP |
1919 | |
1920 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1921 | if (end - begin <= 1) | |
13b3fd9b MS |
1922 | { |
1923 | xfree (buf); | |
1924 | return; | |
1925 | } | |
8dedea02 VP |
1926 | |
1927 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1928 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1929 | at the boundary of accessible region. */ |
1930 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 1931 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1932 | { |
1933 | forward = 1; | |
1934 | ++current_begin; | |
1935 | } | |
1936 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1937 | buf + (end-begin) - 1, end - 1, 1, |
1938 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
1939 | { |
1940 | forward = 0; | |
1941 | --current_end; | |
1942 | } | |
1943 | else | |
1944 | { | |
13b3fd9b | 1945 | xfree (buf); |
8dedea02 VP |
1946 | return; |
1947 | } | |
1948 | ||
1949 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1950 | found to be not readable as a whole. | |
1951 | ||
1952 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1953 | so there's no point trying further. */ | |
1954 | while (current_end - current_begin > 1) | |
1955 | { | |
1956 | ULONGEST first_half_begin, first_half_end; | |
1957 | ULONGEST second_half_begin, second_half_end; | |
1958 | LONGEST xfer; | |
8dedea02 | 1959 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 1960 | |
8dedea02 VP |
1961 | if (forward) |
1962 | { | |
1963 | first_half_begin = current_begin; | |
1964 | first_half_end = middle; | |
1965 | second_half_begin = middle; | |
1966 | second_half_end = current_end; | |
1967 | } | |
1968 | else | |
1969 | { | |
1970 | first_half_begin = middle; | |
1971 | first_half_end = current_end; | |
1972 | second_half_begin = current_begin; | |
1973 | second_half_end = middle; | |
1974 | } | |
1975 | ||
1976 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1977 | buf + (first_half_begin - begin), | |
1978 | first_half_begin, | |
1979 | first_half_end - first_half_begin); | |
1980 | ||
1981 | if (xfer == first_half_end - first_half_begin) | |
1982 | { | |
c378eb4e | 1983 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 1984 | other half. */ |
8dedea02 VP |
1985 | current_begin = second_half_begin; |
1986 | current_end = second_half_end; | |
1987 | } | |
1988 | else | |
1989 | { | |
c378eb4e MS |
1990 | /* This half is not readable. Because we've tried one byte, we |
1991 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
1992 | iteration to divide again and try to read. |
1993 | ||
1994 | We don't handle the other half, because this function only tries | |
1995 | to read a single readable subrange. */ | |
1996 | current_begin = first_half_begin; | |
1997 | current_end = first_half_end; | |
1998 | } | |
1999 | } | |
2000 | ||
2001 | if (forward) | |
2002 | { | |
2003 | /* The [begin, current_begin) range has been read. */ | |
2004 | r.begin = begin; | |
2005 | r.end = current_begin; | |
2006 | r.data = buf; | |
2007 | } | |
2008 | else | |
2009 | { | |
2010 | /* The [current_end, end) range has been read. */ | |
2011 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2012 | |
8dedea02 VP |
2013 | r.data = xmalloc (rlen); |
2014 | memcpy (r.data, buf + current_end - begin, rlen); | |
2015 | r.begin = current_end; | |
2016 | r.end = end; | |
2017 | xfree (buf); | |
2018 | } | |
2019 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2020 | } | |
2021 | ||
2022 | void | |
2023 | free_memory_read_result_vector (void *x) | |
2024 | { | |
2025 | VEC(memory_read_result_s) *v = x; | |
2026 | memory_read_result_s *current; | |
2027 | int ix; | |
2028 | ||
2029 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2030 | { | |
2031 | xfree (current->data); | |
2032 | } | |
2033 | VEC_free (memory_read_result_s, v); | |
2034 | } | |
2035 | ||
2036 | VEC(memory_read_result_s) * | |
2037 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2038 | { | |
2039 | VEC(memory_read_result_s) *result = 0; | |
2040 | ||
2041 | LONGEST xfered = 0; | |
d5086790 VP |
2042 | while (xfered < len) |
2043 | { | |
8dedea02 VP |
2044 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2045 | LONGEST rlen; | |
5d502164 | 2046 | |
8dedea02 VP |
2047 | /* If there is no explicit region, a fake one should be created. */ |
2048 | gdb_assert (region); | |
2049 | ||
2050 | if (region->hi == 0) | |
2051 | rlen = len - xfered; | |
2052 | else | |
2053 | rlen = region->hi - offset; | |
2054 | ||
2055 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2056 | { |
c378eb4e | 2057 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2058 | if the region is explicitly marked inaccessible, or |
2059 | 'inaccessible-by-default' is in effect. */ | |
2060 | xfered += rlen; | |
2061 | } | |
2062 | else | |
2063 | { | |
2064 | LONGEST to_read = min (len - xfered, rlen); | |
2065 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2066 | ||
2067 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2068 | (gdb_byte *) buffer, | |
2069 | offset + xfered, to_read); | |
2070 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2071 | if (xfer <= 0) |
d5086790 | 2072 | { |
c378eb4e | 2073 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2074 | some subrange. */ |
2075 | xfree (buffer); | |
3e43a32a MS |
2076 | read_whatever_is_readable (ops, offset + xfered, |
2077 | offset + xfered + to_read, &result); | |
8dedea02 | 2078 | xfered += to_read; |
d5086790 | 2079 | } |
8dedea02 VP |
2080 | else |
2081 | { | |
2082 | struct memory_read_result r; | |
2083 | r.data = buffer; | |
2084 | r.begin = offset + xfered; | |
2085 | r.end = r.begin + xfer; | |
2086 | VEC_safe_push (memory_read_result_s, result, &r); | |
2087 | xfered += xfer; | |
2088 | } | |
2089 | QUIT; | |
d5086790 | 2090 | } |
d5086790 | 2091 | } |
8dedea02 | 2092 | return result; |
d5086790 VP |
2093 | } |
2094 | ||
8dedea02 | 2095 | |
cf7a04e8 DJ |
2096 | /* An alternative to target_write with progress callbacks. */ |
2097 | ||
1e3ff5ad | 2098 | LONGEST |
cf7a04e8 DJ |
2099 | target_write_with_progress (struct target_ops *ops, |
2100 | enum target_object object, | |
2101 | const char *annex, const gdb_byte *buf, | |
2102 | ULONGEST offset, LONGEST len, | |
2103 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2104 | { |
2105 | LONGEST xfered = 0; | |
a76d924d DJ |
2106 | |
2107 | /* Give the progress callback a chance to set up. */ | |
2108 | if (progress) | |
2109 | (*progress) (0, baton); | |
2110 | ||
1e3ff5ad AC |
2111 | while (xfered < len) |
2112 | { | |
9b409511 YQ |
2113 | ULONGEST xfered_len; |
2114 | enum target_xfer_status status; | |
2115 | ||
2116 | status = target_write_partial (ops, object, annex, | |
2117 | (gdb_byte *) buf + xfered, | |
2118 | offset + xfered, len - xfered, | |
2119 | &xfered_len); | |
cf7a04e8 | 2120 | |
9b409511 | 2121 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2122 | return xfered; |
9b409511 | 2123 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2124 | return -1; |
cf7a04e8 | 2125 | |
9b409511 | 2126 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2127 | if (progress) |
9b409511 | 2128 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2129 | |
9b409511 | 2130 | xfered += xfered_len; |
1e3ff5ad AC |
2131 | QUIT; |
2132 | } | |
2133 | return len; | |
2134 | } | |
2135 | ||
7f79c47e DE |
2136 | /* For docs on target_write see target.h. */ |
2137 | ||
cf7a04e8 DJ |
2138 | LONGEST |
2139 | target_write (struct target_ops *ops, | |
2140 | enum target_object object, | |
2141 | const char *annex, const gdb_byte *buf, | |
2142 | ULONGEST offset, LONGEST len) | |
2143 | { | |
2144 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2145 | NULL, NULL); | |
2146 | } | |
2147 | ||
159f81f3 DJ |
2148 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2149 | the size of the transferred data. PADDING additional bytes are | |
2150 | available in *BUF_P. This is a helper function for | |
2151 | target_read_alloc; see the declaration of that function for more | |
2152 | information. */ | |
13547ab6 | 2153 | |
159f81f3 DJ |
2154 | static LONGEST |
2155 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2156 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2157 | { |
2158 | size_t buf_alloc, buf_pos; | |
2159 | gdb_byte *buf; | |
13547ab6 DJ |
2160 | |
2161 | /* This function does not have a length parameter; it reads the | |
2162 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2163 | from one target and partly from another (in a different stratum, | |
2164 | e.g. a core file and an executable). Both reasons make it | |
2165 | unsuitable for reading memory. */ | |
2166 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2167 | ||
2168 | /* Start by reading up to 4K at a time. The target will throttle | |
2169 | this number down if necessary. */ | |
2170 | buf_alloc = 4096; | |
2171 | buf = xmalloc (buf_alloc); | |
2172 | buf_pos = 0; | |
2173 | while (1) | |
2174 | { | |
9b409511 YQ |
2175 | ULONGEST xfered_len; |
2176 | enum target_xfer_status status; | |
2177 | ||
2178 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2179 | buf_pos, buf_alloc - buf_pos - padding, | |
2180 | &xfered_len); | |
2181 | ||
2182 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2183 | { |
2184 | /* Read all there was. */ | |
2185 | if (buf_pos == 0) | |
2186 | xfree (buf); | |
2187 | else | |
2188 | *buf_p = buf; | |
2189 | return buf_pos; | |
2190 | } | |
9b409511 YQ |
2191 | else if (status != TARGET_XFER_OK) |
2192 | { | |
2193 | /* An error occurred. */ | |
2194 | xfree (buf); | |
2195 | return TARGET_XFER_E_IO; | |
2196 | } | |
13547ab6 | 2197 | |
9b409511 | 2198 | buf_pos += xfered_len; |
13547ab6 DJ |
2199 | |
2200 | /* If the buffer is filling up, expand it. */ | |
2201 | if (buf_alloc < buf_pos * 2) | |
2202 | { | |
2203 | buf_alloc *= 2; | |
2204 | buf = xrealloc (buf, buf_alloc); | |
2205 | } | |
2206 | ||
2207 | QUIT; | |
2208 | } | |
2209 | } | |
2210 | ||
159f81f3 DJ |
2211 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2212 | the size of the transferred data. See the declaration in "target.h" | |
2213 | function for more information about the return value. */ | |
2214 | ||
2215 | LONGEST | |
2216 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2217 | const char *annex, gdb_byte **buf_p) | |
2218 | { | |
2219 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2220 | } | |
2221 | ||
2222 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2223 | returned as a string, allocated using xmalloc. If an error occurs | |
2224 | or the transfer is unsupported, NULL is returned. Empty objects | |
2225 | are returned as allocated but empty strings. A warning is issued | |
2226 | if the result contains any embedded NUL bytes. */ | |
2227 | ||
2228 | char * | |
2229 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2230 | const char *annex) | |
2231 | { | |
39086a0e PA |
2232 | gdb_byte *buffer; |
2233 | char *bufstr; | |
7313baad | 2234 | LONGEST i, transferred; |
159f81f3 | 2235 | |
39086a0e PA |
2236 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2237 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2238 | |
2239 | if (transferred < 0) | |
2240 | return NULL; | |
2241 | ||
2242 | if (transferred == 0) | |
2243 | return xstrdup (""); | |
2244 | ||
39086a0e | 2245 | bufstr[transferred] = 0; |
7313baad UW |
2246 | |
2247 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2248 | for (i = strlen (bufstr); i < transferred; i++) |
2249 | if (bufstr[i] != 0) | |
7313baad UW |
2250 | { |
2251 | warning (_("target object %d, annex %s, " | |
2252 | "contained unexpected null characters"), | |
2253 | (int) object, annex ? annex : "(none)"); | |
2254 | break; | |
2255 | } | |
159f81f3 | 2256 | |
39086a0e | 2257 | return bufstr; |
159f81f3 DJ |
2258 | } |
2259 | ||
b6591e8b AC |
2260 | /* Memory transfer methods. */ |
2261 | ||
2262 | void | |
1b0ba102 | 2263 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2264 | LONGEST len) |
2265 | { | |
07b82ea5 PA |
2266 | /* This method is used to read from an alternate, non-current |
2267 | target. This read must bypass the overlay support (as symbols | |
2268 | don't match this target), and GDB's internal cache (wrong cache | |
2269 | for this target). */ | |
2270 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2271 | != len) |
578d3588 | 2272 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2273 | } |
2274 | ||
2275 | ULONGEST | |
5d502164 MS |
2276 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2277 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2278 | { |
f6519ebc | 2279 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2280 | |
2281 | gdb_assert (len <= sizeof (buf)); | |
2282 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2283 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2284 | } |
2285 | ||
3db08215 MM |
2286 | /* See target.h. */ |
2287 | ||
d914c394 SS |
2288 | int |
2289 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2290 | struct bp_target_info *bp_tgt) | |
2291 | { | |
2292 | if (!may_insert_breakpoints) | |
2293 | { | |
2294 | warning (_("May not insert breakpoints")); | |
2295 | return 1; | |
2296 | } | |
2297 | ||
6b84065d TT |
2298 | return current_target.to_insert_breakpoint (¤t_target, |
2299 | gdbarch, bp_tgt); | |
d914c394 SS |
2300 | } |
2301 | ||
3db08215 MM |
2302 | /* See target.h. */ |
2303 | ||
d914c394 | 2304 | int |
6b84065d TT |
2305 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2306 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2307 | { |
2308 | /* This is kind of a weird case to handle, but the permission might | |
2309 | have been changed after breakpoints were inserted - in which case | |
2310 | we should just take the user literally and assume that any | |
2311 | breakpoints should be left in place. */ | |
2312 | if (!may_insert_breakpoints) | |
2313 | { | |
2314 | warning (_("May not remove breakpoints")); | |
2315 | return 1; | |
2316 | } | |
2317 | ||
6b84065d TT |
2318 | return current_target.to_remove_breakpoint (¤t_target, |
2319 | gdbarch, bp_tgt); | |
d914c394 SS |
2320 | } |
2321 | ||
c906108c | 2322 | static void |
fba45db2 | 2323 | target_info (char *args, int from_tty) |
c906108c SS |
2324 | { |
2325 | struct target_ops *t; | |
c906108c | 2326 | int has_all_mem = 0; |
c5aa993b | 2327 | |
c906108c | 2328 | if (symfile_objfile != NULL) |
4262abfb JK |
2329 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2330 | objfile_name (symfile_objfile)); | |
c906108c | 2331 | |
258b763a | 2332 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2333 | { |
c35b1492 | 2334 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2335 | continue; |
2336 | ||
c5aa993b | 2337 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2338 | continue; |
2339 | if (has_all_mem) | |
3e43a32a MS |
2340 | printf_unfiltered (_("\tWhile running this, " |
2341 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2342 | printf_unfiltered ("%s:\n", t->to_longname); |
2343 | (t->to_files_info) (t); | |
c35b1492 | 2344 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2345 | } |
2346 | } | |
2347 | ||
fd79ecee DJ |
2348 | /* This function is called before any new inferior is created, e.g. |
2349 | by running a program, attaching, or connecting to a target. | |
2350 | It cleans up any state from previous invocations which might | |
2351 | change between runs. This is a subset of what target_preopen | |
2352 | resets (things which might change between targets). */ | |
2353 | ||
2354 | void | |
2355 | target_pre_inferior (int from_tty) | |
2356 | { | |
c378eb4e | 2357 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2358 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2359 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2360 | to reproduce: |
2361 | ||
2362 | bash$ ./foo& | |
2363 | [1] 4711 | |
2364 | bash$ ./foo& | |
2365 | [1] 4712 | |
2366 | bash$ gdb ./foo | |
2367 | [...] | |
2368 | (gdb) attach 4711 | |
2369 | (gdb) detach | |
2370 | (gdb) attach 4712 | |
2371 | Cannot access memory at address 0xdeadbeef | |
2372 | */ | |
b9db4ced | 2373 | |
50c71eaf PA |
2374 | /* In some OSs, the shared library list is the same/global/shared |
2375 | across inferiors. If code is shared between processes, so are | |
2376 | memory regions and features. */ | |
f5656ead | 2377 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2378 | { |
2379 | no_shared_libraries (NULL, from_tty); | |
2380 | ||
2381 | invalidate_target_mem_regions (); | |
424163ea | 2382 | |
50c71eaf PA |
2383 | target_clear_description (); |
2384 | } | |
8ffcbaaf YQ |
2385 | |
2386 | agent_capability_invalidate (); | |
fd79ecee DJ |
2387 | } |
2388 | ||
b8fa0bfa PA |
2389 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2390 | inferior. */ | |
2391 | ||
2392 | static int | |
2393 | dispose_inferior (struct inferior *inf, void *args) | |
2394 | { | |
2395 | struct thread_info *thread; | |
2396 | ||
2397 | thread = any_thread_of_process (inf->pid); | |
2398 | if (thread) | |
2399 | { | |
2400 | switch_to_thread (thread->ptid); | |
2401 | ||
2402 | /* Core inferiors actually should be detached, not killed. */ | |
2403 | if (target_has_execution) | |
2404 | target_kill (); | |
2405 | else | |
2406 | target_detach (NULL, 0); | |
2407 | } | |
2408 | ||
2409 | return 0; | |
2410 | } | |
2411 | ||
c906108c SS |
2412 | /* This is to be called by the open routine before it does |
2413 | anything. */ | |
2414 | ||
2415 | void | |
fba45db2 | 2416 | target_preopen (int from_tty) |
c906108c | 2417 | { |
c5aa993b | 2418 | dont_repeat (); |
c906108c | 2419 | |
b8fa0bfa | 2420 | if (have_inferiors ()) |
c5aa993b | 2421 | { |
adf40b2e | 2422 | if (!from_tty |
b8fa0bfa PA |
2423 | || !have_live_inferiors () |
2424 | || query (_("A program is being debugged already. Kill it? "))) | |
2425 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2426 | else |
8a3fe4f8 | 2427 | error (_("Program not killed.")); |
c906108c SS |
2428 | } |
2429 | ||
2430 | /* Calling target_kill may remove the target from the stack. But if | |
2431 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2432 | /* Leave the exec target, though. The user may be switching from a |
2433 | live process to a core of the same program. */ | |
460014f5 | 2434 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2435 | |
2436 | target_pre_inferior (from_tty); | |
c906108c SS |
2437 | } |
2438 | ||
2439 | /* Detach a target after doing deferred register stores. */ | |
2440 | ||
2441 | void | |
52554a0e | 2442 | target_detach (const char *args, int from_tty) |
c906108c | 2443 | { |
136d6dae VP |
2444 | struct target_ops* t; |
2445 | ||
f5656ead | 2446 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2447 | /* Don't remove global breakpoints here. They're removed on |
2448 | disconnection from the target. */ | |
2449 | ; | |
2450 | else | |
2451 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2452 | them before detaching. */ | |
dfd4cc63 | 2453 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2454 | |
24291992 PA |
2455 | prepare_for_detach (); |
2456 | ||
09da0d0a TT |
2457 | current_target.to_detach (¤t_target, args, from_tty); |
2458 | if (targetdebug) | |
2459 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2460 | args, from_tty); | |
c906108c SS |
2461 | } |
2462 | ||
6ad8ae5c DJ |
2463 | void |
2464 | target_disconnect (char *args, int from_tty) | |
2465 | { | |
597320e7 DJ |
2466 | struct target_ops *t; |
2467 | ||
50c71eaf PA |
2468 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2469 | are global across processes, we have to remove them before | |
2470 | disconnecting. */ | |
74960c60 VP |
2471 | remove_breakpoints (); |
2472 | ||
597320e7 DJ |
2473 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2474 | if (t->to_disconnect != NULL) | |
2475 | { | |
2476 | if (targetdebug) | |
2477 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2478 | args, from_tty); | |
2479 | t->to_disconnect (t, args, from_tty); | |
2480 | return; | |
2481 | } | |
2482 | ||
2483 | tcomplain (); | |
6ad8ae5c DJ |
2484 | } |
2485 | ||
117de6a9 | 2486 | ptid_t |
47608cb1 | 2487 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2488 | { |
2489 | struct target_ops *t; | |
6b84065d TT |
2490 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2491 | status, options); | |
117de6a9 | 2492 | |
6b84065d | 2493 | if (targetdebug) |
117de6a9 | 2494 | { |
6b84065d TT |
2495 | char *status_string; |
2496 | char *options_string; | |
117de6a9 | 2497 | |
6b84065d TT |
2498 | status_string = target_waitstatus_to_string (status); |
2499 | options_string = target_options_to_string (options); | |
2500 | fprintf_unfiltered (gdb_stdlog, | |
2501 | "target_wait (%d, status, options={%s})" | |
2502 | " = %d, %s\n", | |
2503 | ptid_get_pid (ptid), options_string, | |
2504 | ptid_get_pid (retval), status_string); | |
2505 | xfree (status_string); | |
2506 | xfree (options_string); | |
117de6a9 PA |
2507 | } |
2508 | ||
6b84065d | 2509 | return retval; |
117de6a9 PA |
2510 | } |
2511 | ||
2512 | char * | |
2513 | target_pid_to_str (ptid_t ptid) | |
2514 | { | |
770234d3 | 2515 | return (*current_target.to_pid_to_str) (¤t_target, ptid); |
117de6a9 PA |
2516 | } |
2517 | ||
4694da01 TT |
2518 | char * |
2519 | target_thread_name (struct thread_info *info) | |
2520 | { | |
825828fc | 2521 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2522 | } |
2523 | ||
e1ac3328 | 2524 | void |
2ea28649 | 2525 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2526 | { |
28439f5e PA |
2527 | struct target_ops *t; |
2528 | ||
4e5d721f | 2529 | target_dcache_invalidate (); |
28439f5e | 2530 | |
6b84065d TT |
2531 | current_target.to_resume (¤t_target, ptid, step, signal); |
2532 | if (targetdebug) | |
2533 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2534 | ptid_get_pid (ptid), | |
2535 | step ? "step" : "continue", | |
2536 | gdb_signal_to_name (signal)); | |
28439f5e | 2537 | |
6b84065d TT |
2538 | registers_changed_ptid (ptid); |
2539 | set_executing (ptid, 1); | |
2540 | set_running (ptid, 1); | |
2541 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2542 | } |
2455069d UW |
2543 | |
2544 | void | |
2545 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2546 | { | |
035cad7f | 2547 | if (targetdebug) |
2455069d | 2548 | { |
035cad7f | 2549 | int i; |
2455069d | 2550 | |
035cad7f TT |
2551 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", |
2552 | numsigs); | |
2455069d | 2553 | |
035cad7f TT |
2554 | for (i = 0; i < numsigs; i++) |
2555 | if (pass_signals[i]) | |
2556 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2557 | gdb_signal_to_name (i)); | |
2455069d | 2558 | |
035cad7f | 2559 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
2455069d | 2560 | } |
035cad7f TT |
2561 | |
2562 | (*current_target.to_pass_signals) (¤t_target, numsigs, pass_signals); | |
2455069d UW |
2563 | } |
2564 | ||
9b224c5e PA |
2565 | void |
2566 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2567 | { | |
7d4f8efa | 2568 | if (targetdebug) |
9b224c5e | 2569 | { |
7d4f8efa | 2570 | int i; |
9b224c5e | 2571 | |
7d4f8efa TT |
2572 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", |
2573 | numsigs); | |
9b224c5e | 2574 | |
7d4f8efa TT |
2575 | for (i = 0; i < numsigs; i++) |
2576 | if (program_signals[i]) | |
2577 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2578 | gdb_signal_to_name (i)); | |
9b224c5e | 2579 | |
7d4f8efa | 2580 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
9b224c5e | 2581 | } |
7d4f8efa TT |
2582 | |
2583 | (*current_target.to_program_signals) (¤t_target, | |
2584 | numsigs, program_signals); | |
9b224c5e PA |
2585 | } |
2586 | ||
098dba18 TT |
2587 | static int |
2588 | default_follow_fork (struct target_ops *self, int follow_child, | |
2589 | int detach_fork) | |
2590 | { | |
2591 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2592 | internal_error (__FILE__, __LINE__, | |
2593 | _("could not find a target to follow fork")); | |
2594 | } | |
2595 | ||
ee057212 DJ |
2596 | /* Look through the list of possible targets for a target that can |
2597 | follow forks. */ | |
2598 | ||
2599 | int | |
07107ca6 | 2600 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 | 2601 | { |
098dba18 TT |
2602 | int retval = current_target.to_follow_fork (¤t_target, |
2603 | follow_child, detach_fork); | |
ee057212 | 2604 | |
098dba18 TT |
2605 | if (targetdebug) |
2606 | fprintf_unfiltered (gdb_stdlog, | |
2607 | "target_follow_fork (%d, %d) = %d\n", | |
2608 | follow_child, detach_fork, retval); | |
2609 | return retval; | |
ee057212 DJ |
2610 | } |
2611 | ||
8d657035 TT |
2612 | static void |
2613 | default_mourn_inferior (struct target_ops *self) | |
2614 | { | |
2615 | internal_error (__FILE__, __LINE__, | |
2616 | _("could not find a target to follow mourn inferior")); | |
2617 | } | |
2618 | ||
136d6dae VP |
2619 | void |
2620 | target_mourn_inferior (void) | |
2621 | { | |
8d657035 TT |
2622 | current_target.to_mourn_inferior (¤t_target); |
2623 | if (targetdebug) | |
2624 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
136d6dae | 2625 | |
8d657035 TT |
2626 | /* We no longer need to keep handles on any of the object files. |
2627 | Make sure to release them to avoid unnecessarily locking any | |
2628 | of them while we're not actually debugging. */ | |
2629 | bfd_cache_close_all (); | |
136d6dae VP |
2630 | } |
2631 | ||
424163ea DJ |
2632 | /* Look for a target which can describe architectural features, starting |
2633 | from TARGET. If we find one, return its description. */ | |
2634 | ||
2635 | const struct target_desc * | |
2636 | target_read_description (struct target_ops *target) | |
2637 | { | |
2638 | struct target_ops *t; | |
2639 | ||
2640 | for (t = target; t != NULL; t = t->beneath) | |
2641 | if (t->to_read_description != NULL) | |
2642 | { | |
2643 | const struct target_desc *tdesc; | |
2644 | ||
2645 | tdesc = t->to_read_description (t); | |
2646 | if (tdesc) | |
2647 | return tdesc; | |
2648 | } | |
2649 | ||
2650 | return NULL; | |
2651 | } | |
2652 | ||
08388c79 DE |
2653 | /* The default implementation of to_search_memory. |
2654 | This implements a basic search of memory, reading target memory and | |
2655 | performing the search here (as opposed to performing the search in on the | |
2656 | target side with, for example, gdbserver). */ | |
2657 | ||
2658 | int | |
2659 | simple_search_memory (struct target_ops *ops, | |
2660 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2661 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2662 | CORE_ADDR *found_addrp) | |
2663 | { | |
2664 | /* NOTE: also defined in find.c testcase. */ | |
2665 | #define SEARCH_CHUNK_SIZE 16000 | |
2666 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2667 | /* Buffer to hold memory contents for searching. */ | |
2668 | gdb_byte *search_buf; | |
2669 | unsigned search_buf_size; | |
2670 | struct cleanup *old_cleanups; | |
2671 | ||
2672 | search_buf_size = chunk_size + pattern_len - 1; | |
2673 | ||
2674 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2675 | if (search_space_len < search_buf_size) | |
2676 | search_buf_size = search_space_len; | |
2677 | ||
2678 | search_buf = malloc (search_buf_size); | |
2679 | if (search_buf == NULL) | |
5e1471f5 | 2680 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2681 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2682 | ||
2683 | /* Prime the search buffer. */ | |
2684 | ||
2685 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2686 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2687 | { | |
b3dc46ff AB |
2688 | warning (_("Unable to access %s bytes of target " |
2689 | "memory at %s, halting search."), | |
2690 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2691 | do_cleanups (old_cleanups); |
2692 | return -1; | |
2693 | } | |
2694 | ||
2695 | /* Perform the search. | |
2696 | ||
2697 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2698 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2699 | read in another N bytes. */ | |
2700 | ||
2701 | while (search_space_len >= pattern_len) | |
2702 | { | |
2703 | gdb_byte *found_ptr; | |
2704 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2705 | ||
2706 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2707 | pattern, pattern_len); | |
2708 | ||
2709 | if (found_ptr != NULL) | |
2710 | { | |
2711 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2712 | |
08388c79 DE |
2713 | *found_addrp = found_addr; |
2714 | do_cleanups (old_cleanups); | |
2715 | return 1; | |
2716 | } | |
2717 | ||
2718 | /* Not found in this chunk, skip to next chunk. */ | |
2719 | ||
2720 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2721 | if (search_space_len >= chunk_size) | |
2722 | search_space_len -= chunk_size; | |
2723 | else | |
2724 | search_space_len = 0; | |
2725 | ||
2726 | if (search_space_len >= pattern_len) | |
2727 | { | |
2728 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2729 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2730 | int nr_to_read; |
2731 | ||
2732 | /* Copy the trailing part of the previous iteration to the front | |
2733 | of the buffer for the next iteration. */ | |
2734 | gdb_assert (keep_len == pattern_len - 1); | |
2735 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2736 | ||
2737 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2738 | ||
2739 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2740 | search_buf + keep_len, read_addr, | |
2741 | nr_to_read) != nr_to_read) | |
2742 | { | |
b3dc46ff | 2743 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2744 | "memory at %s, halting search."), |
b3dc46ff | 2745 | plongest (nr_to_read), |
08388c79 DE |
2746 | hex_string (read_addr)); |
2747 | do_cleanups (old_cleanups); | |
2748 | return -1; | |
2749 | } | |
2750 | ||
2751 | start_addr += chunk_size; | |
2752 | } | |
2753 | } | |
2754 | ||
2755 | /* Not found. */ | |
2756 | ||
2757 | do_cleanups (old_cleanups); | |
2758 | return 0; | |
2759 | } | |
2760 | ||
2761 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2762 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2763 | ||
2764 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2765 | requiring halting of the search (e.g. memory read error). | |
2766 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2767 | ||
2768 | int | |
2769 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2770 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2771 | CORE_ADDR *found_addrp) | |
2772 | { | |
2773 | struct target_ops *t; | |
2774 | int found; | |
2775 | ||
2776 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2777 | so we have to scan the target stack and handle targetdebug | |
2778 | ourselves. */ | |
2779 | ||
2780 | if (targetdebug) | |
2781 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2782 | hex_string (start_addr)); | |
2783 | ||
2784 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2785 | if (t->to_search_memory != NULL) | |
2786 | break; | |
2787 | ||
2788 | if (t != NULL) | |
2789 | { | |
2790 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2791 | pattern, pattern_len, found_addrp); | |
2792 | } | |
2793 | else | |
2794 | { | |
2795 | /* If a special version of to_search_memory isn't available, use the | |
2796 | simple version. */ | |
c35b1492 | 2797 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2798 | start_addr, search_space_len, |
2799 | pattern, pattern_len, found_addrp); | |
2800 | } | |
2801 | ||
2802 | if (targetdebug) | |
2803 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2804 | ||
2805 | return found; | |
2806 | } | |
2807 | ||
8edfe269 DJ |
2808 | /* Look through the currently pushed targets. If none of them will |
2809 | be able to restart the currently running process, issue an error | |
2810 | message. */ | |
2811 | ||
2812 | void | |
2813 | target_require_runnable (void) | |
2814 | { | |
2815 | struct target_ops *t; | |
2816 | ||
2817 | for (t = target_stack; t != NULL; t = t->beneath) | |
2818 | { | |
2819 | /* If this target knows how to create a new program, then | |
2820 | assume we will still be able to after killing the current | |
2821 | one. Either killing and mourning will not pop T, or else | |
2822 | find_default_run_target will find it again. */ | |
2823 | if (t->to_create_inferior != NULL) | |
2824 | return; | |
2825 | ||
2826 | /* Do not worry about thread_stratum targets that can not | |
2827 | create inferiors. Assume they will be pushed again if | |
2828 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2829 | if (t->to_stratum == thread_stratum |
2830 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2831 | continue; |
2832 | ||
3e43a32a MS |
2833 | error (_("The \"%s\" target does not support \"run\". " |
2834 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2835 | t->to_shortname); |
2836 | } | |
2837 | ||
2838 | /* This function is only called if the target is running. In that | |
2839 | case there should have been a process_stratum target and it | |
c378eb4e | 2840 | should either know how to create inferiors, or not... */ |
9b20d036 | 2841 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2842 | } |
2843 | ||
c906108c SS |
2844 | /* Look through the list of possible targets for a target that can |
2845 | execute a run or attach command without any other data. This is | |
2846 | used to locate the default process stratum. | |
2847 | ||
5f667f2d PA |
2848 | If DO_MESG is not NULL, the result is always valid (error() is |
2849 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2850 | |
2851 | static struct target_ops * | |
fba45db2 | 2852 | find_default_run_target (char *do_mesg) |
c906108c SS |
2853 | { |
2854 | struct target_ops **t; | |
2855 | struct target_ops *runable = NULL; | |
2856 | int count; | |
2857 | ||
2858 | count = 0; | |
2859 | ||
2860 | for (t = target_structs; t < target_structs + target_struct_size; | |
2861 | ++t) | |
2862 | { | |
c5aa993b | 2863 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2864 | { |
2865 | runable = *t; | |
2866 | ++count; | |
2867 | } | |
2868 | } | |
2869 | ||
2870 | if (count != 1) | |
5f667f2d PA |
2871 | { |
2872 | if (do_mesg) | |
2873 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2874 | else | |
2875 | return NULL; | |
2876 | } | |
c906108c SS |
2877 | |
2878 | return runable; | |
2879 | } | |
2880 | ||
2881 | void | |
136d6dae | 2882 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2883 | { |
2884 | struct target_ops *t; | |
2885 | ||
c5aa993b | 2886 | t = find_default_run_target ("attach"); |
136d6dae | 2887 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2888 | return; |
2889 | } | |
2890 | ||
c906108c | 2891 | void |
136d6dae VP |
2892 | find_default_create_inferior (struct target_ops *ops, |
2893 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2894 | int from_tty) |
c906108c SS |
2895 | { |
2896 | struct target_ops *t; | |
2897 | ||
c5aa993b | 2898 | t = find_default_run_target ("run"); |
136d6dae | 2899 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
2900 | return; |
2901 | } | |
2902 | ||
2c0b251b | 2903 | static int |
6a109b6b | 2904 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
2905 | { |
2906 | struct target_ops *t; | |
2907 | ||
5f667f2d PA |
2908 | /* This may be called before the target is pushed on the stack; |
2909 | look for the default process stratum. If there's none, gdb isn't | |
2910 | configured with a native debugger, and target remote isn't | |
2911 | connected yet. */ | |
2912 | t = find_default_run_target (NULL); | |
6b84065d | 2913 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 2914 | return (t->to_can_async_p) (t); |
b84876c2 PA |
2915 | return 0; |
2916 | } | |
2917 | ||
2c0b251b | 2918 | static int |
6a109b6b | 2919 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
2920 | { |
2921 | struct target_ops *t; | |
2922 | ||
5f667f2d PA |
2923 | /* This may be called before the target is pushed on the stack; |
2924 | look for the default process stratum. If there's none, gdb isn't | |
2925 | configured with a native debugger, and target remote isn't | |
2926 | connected yet. */ | |
2927 | t = find_default_run_target (NULL); | |
6b84065d | 2928 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 2929 | return (t->to_is_async_p) (t); |
b84876c2 PA |
2930 | return 0; |
2931 | } | |
2932 | ||
2c0b251b | 2933 | static int |
2a9a2795 | 2934 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
2935 | { |
2936 | struct target_ops *t; | |
2937 | ||
2938 | t = find_default_run_target (NULL); | |
2939 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 2940 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
2941 | return 0; |
2942 | } | |
2943 | ||
2944 | int | |
2c0b251b | 2945 | target_supports_non_stop (void) |
9908b566 VP |
2946 | { |
2947 | struct target_ops *t; | |
5d502164 | 2948 | |
9908b566 VP |
2949 | for (t = ¤t_target; t != NULL; t = t->beneath) |
2950 | if (t->to_supports_non_stop) | |
2a9a2795 | 2951 | return t->to_supports_non_stop (t); |
9908b566 VP |
2952 | |
2953 | return 0; | |
2954 | } | |
2955 | ||
145b16a9 UW |
2956 | /* Implement the "info proc" command. */ |
2957 | ||
451b7c33 | 2958 | int |
145b16a9 UW |
2959 | target_info_proc (char *args, enum info_proc_what what) |
2960 | { | |
2961 | struct target_ops *t; | |
2962 | ||
2963 | /* If we're already connected to something that can get us OS | |
2964 | related data, use it. Otherwise, try using the native | |
2965 | target. */ | |
2966 | if (current_target.to_stratum >= process_stratum) | |
2967 | t = current_target.beneath; | |
2968 | else | |
2969 | t = find_default_run_target (NULL); | |
2970 | ||
2971 | for (; t != NULL; t = t->beneath) | |
2972 | { | |
2973 | if (t->to_info_proc != NULL) | |
2974 | { | |
2975 | t->to_info_proc (t, args, what); | |
2976 | ||
2977 | if (targetdebug) | |
2978 | fprintf_unfiltered (gdb_stdlog, | |
2979 | "target_info_proc (\"%s\", %d)\n", args, what); | |
2980 | ||
451b7c33 | 2981 | return 1; |
145b16a9 UW |
2982 | } |
2983 | } | |
2984 | ||
451b7c33 | 2985 | return 0; |
145b16a9 UW |
2986 | } |
2987 | ||
03583c20 | 2988 | static int |
2bfc0540 | 2989 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
2990 | { |
2991 | struct target_ops *t; | |
2992 | ||
2993 | t = find_default_run_target (NULL); | |
2994 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 2995 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
2996 | return 0; |
2997 | } | |
2998 | ||
2999 | int | |
3000 | target_supports_disable_randomization (void) | |
3001 | { | |
3002 | struct target_ops *t; | |
3003 | ||
3004 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3005 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 3006 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
3007 | |
3008 | return 0; | |
3009 | } | |
9908b566 | 3010 | |
07e059b5 VP |
3011 | char * |
3012 | target_get_osdata (const char *type) | |
3013 | { | |
07e059b5 VP |
3014 | struct target_ops *t; |
3015 | ||
739ef7fb PA |
3016 | /* If we're already connected to something that can get us OS |
3017 | related data, use it. Otherwise, try using the native | |
3018 | target. */ | |
3019 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3020 | t = current_target.beneath; |
739ef7fb PA |
3021 | else |
3022 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3023 | |
3024 | if (!t) | |
3025 | return NULL; | |
3026 | ||
6d097e65 | 3027 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3028 | } |
3029 | ||
6c95b8df PA |
3030 | /* Determine the current address space of thread PTID. */ |
3031 | ||
3032 | struct address_space * | |
3033 | target_thread_address_space (ptid_t ptid) | |
3034 | { | |
c0694254 | 3035 | struct address_space *aspace; |
6c95b8df | 3036 | struct inferior *inf; |
c0694254 PA |
3037 | struct target_ops *t; |
3038 | ||
3039 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3040 | { | |
3041 | if (t->to_thread_address_space != NULL) | |
3042 | { | |
3043 | aspace = t->to_thread_address_space (t, ptid); | |
3044 | gdb_assert (aspace); | |
6c95b8df | 3045 | |
c0694254 PA |
3046 | if (targetdebug) |
3047 | fprintf_unfiltered (gdb_stdlog, | |
3048 | "target_thread_address_space (%s) = %d\n", | |
3049 | target_pid_to_str (ptid), | |
3050 | address_space_num (aspace)); | |
3051 | return aspace; | |
3052 | } | |
3053 | } | |
6c95b8df PA |
3054 | |
3055 | /* Fall-back to the "main" address space of the inferior. */ | |
3056 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3057 | ||
3058 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3059 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3060 | _("Can't determine the current " |
3061 | "address space of thread %s\n"), | |
6c95b8df PA |
3062 | target_pid_to_str (ptid)); |
3063 | ||
3064 | return inf->aspace; | |
3065 | } | |
3066 | ||
7313baad UW |
3067 | |
3068 | /* Target file operations. */ | |
3069 | ||
3070 | static struct target_ops * | |
3071 | default_fileio_target (void) | |
3072 | { | |
3073 | /* If we're already connected to something that can perform | |
3074 | file I/O, use it. Otherwise, try using the native target. */ | |
3075 | if (current_target.to_stratum >= process_stratum) | |
3076 | return current_target.beneath; | |
3077 | else | |
3078 | return find_default_run_target ("file I/O"); | |
3079 | } | |
3080 | ||
3081 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3082 | target file descriptor, or -1 if an error occurs (and set | |
3083 | *TARGET_ERRNO). */ | |
3084 | int | |
3085 | target_fileio_open (const char *filename, int flags, int mode, | |
3086 | int *target_errno) | |
3087 | { | |
3088 | struct target_ops *t; | |
3089 | ||
3090 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3091 | { | |
3092 | if (t->to_fileio_open != NULL) | |
3093 | { | |
cd897586 | 3094 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
3095 | |
3096 | if (targetdebug) | |
3097 | fprintf_unfiltered (gdb_stdlog, | |
3098 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3099 | filename, flags, mode, | |
3100 | fd, fd != -1 ? 0 : *target_errno); | |
3101 | return fd; | |
3102 | } | |
3103 | } | |
3104 | ||
3105 | *target_errno = FILEIO_ENOSYS; | |
3106 | return -1; | |
3107 | } | |
3108 | ||
3109 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3110 | Return the number of bytes written, or -1 if an error occurs | |
3111 | (and set *TARGET_ERRNO). */ | |
3112 | int | |
3113 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3114 | ULONGEST offset, int *target_errno) | |
3115 | { | |
3116 | struct target_ops *t; | |
3117 | ||
3118 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3119 | { | |
3120 | if (t->to_fileio_pwrite != NULL) | |
3121 | { | |
0d866f62 | 3122 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
3123 | target_errno); |
3124 | ||
3125 | if (targetdebug) | |
3126 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3127 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3128 | "= %d (%d)\n", |
a71b5a38 | 3129 | fd, len, pulongest (offset), |
7313baad UW |
3130 | ret, ret != -1 ? 0 : *target_errno); |
3131 | return ret; | |
3132 | } | |
3133 | } | |
3134 | ||
3135 | *target_errno = FILEIO_ENOSYS; | |
3136 | return -1; | |
3137 | } | |
3138 | ||
3139 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3140 | Return the number of bytes read, or -1 if an error occurs | |
3141 | (and set *TARGET_ERRNO). */ | |
3142 | int | |
3143 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3144 | ULONGEST offset, int *target_errno) | |
3145 | { | |
3146 | struct target_ops *t; | |
3147 | ||
3148 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3149 | { | |
3150 | if (t->to_fileio_pread != NULL) | |
3151 | { | |
a3be983c | 3152 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
3153 | target_errno); |
3154 | ||
3155 | if (targetdebug) | |
3156 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3157 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3158 | "= %d (%d)\n", |
a71b5a38 | 3159 | fd, len, pulongest (offset), |
7313baad UW |
3160 | ret, ret != -1 ? 0 : *target_errno); |
3161 | return ret; | |
3162 | } | |
3163 | } | |
3164 | ||
3165 | *target_errno = FILEIO_ENOSYS; | |
3166 | return -1; | |
3167 | } | |
3168 | ||
3169 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3170 | (and set *TARGET_ERRNO). */ | |
3171 | int | |
3172 | target_fileio_close (int fd, int *target_errno) | |
3173 | { | |
3174 | struct target_ops *t; | |
3175 | ||
3176 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3177 | { | |
3178 | if (t->to_fileio_close != NULL) | |
3179 | { | |
df39ea25 | 3180 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
3181 | |
3182 | if (targetdebug) | |
3183 | fprintf_unfiltered (gdb_stdlog, | |
3184 | "target_fileio_close (%d) = %d (%d)\n", | |
3185 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3186 | return ret; | |
3187 | } | |
3188 | } | |
3189 | ||
3190 | *target_errno = FILEIO_ENOSYS; | |
3191 | return -1; | |
3192 | } | |
3193 | ||
3194 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3195 | occurs (and set *TARGET_ERRNO). */ | |
3196 | int | |
3197 | target_fileio_unlink (const char *filename, int *target_errno) | |
3198 | { | |
3199 | struct target_ops *t; | |
3200 | ||
3201 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3202 | { | |
3203 | if (t->to_fileio_unlink != NULL) | |
3204 | { | |
dbbca37d | 3205 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
3206 | |
3207 | if (targetdebug) | |
3208 | fprintf_unfiltered (gdb_stdlog, | |
3209 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3210 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3211 | return ret; | |
3212 | } | |
3213 | } | |
3214 | ||
3215 | *target_errno = FILEIO_ENOSYS; | |
3216 | return -1; | |
3217 | } | |
3218 | ||
b9e7b9c3 UW |
3219 | /* Read value of symbolic link FILENAME on the target. Return a |
3220 | null-terminated string allocated via xmalloc, or NULL if an error | |
3221 | occurs (and set *TARGET_ERRNO). */ | |
3222 | char * | |
3223 | target_fileio_readlink (const char *filename, int *target_errno) | |
3224 | { | |
3225 | struct target_ops *t; | |
3226 | ||
3227 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3228 | { | |
3229 | if (t->to_fileio_readlink != NULL) | |
3230 | { | |
fab5aa7c | 3231 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
3232 | |
3233 | if (targetdebug) | |
3234 | fprintf_unfiltered (gdb_stdlog, | |
3235 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3236 | filename, ret? ret : "(nil)", | |
3237 | ret? 0 : *target_errno); | |
3238 | return ret; | |
3239 | } | |
3240 | } | |
3241 | ||
3242 | *target_errno = FILEIO_ENOSYS; | |
3243 | return NULL; | |
3244 | } | |
3245 | ||
7313baad UW |
3246 | static void |
3247 | target_fileio_close_cleanup (void *opaque) | |
3248 | { | |
3249 | int fd = *(int *) opaque; | |
3250 | int target_errno; | |
3251 | ||
3252 | target_fileio_close (fd, &target_errno); | |
3253 | } | |
3254 | ||
3255 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3256 | return the size of the transferred data. PADDING additional bytes are | |
3257 | available in *BUF_P. This is a helper function for | |
3258 | target_fileio_read_alloc; see the declaration of that function for more | |
3259 | information. */ | |
3260 | ||
3261 | static LONGEST | |
3262 | target_fileio_read_alloc_1 (const char *filename, | |
3263 | gdb_byte **buf_p, int padding) | |
3264 | { | |
3265 | struct cleanup *close_cleanup; | |
3266 | size_t buf_alloc, buf_pos; | |
3267 | gdb_byte *buf; | |
3268 | LONGEST n; | |
3269 | int fd; | |
3270 | int target_errno; | |
3271 | ||
3272 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3273 | if (fd == -1) | |
3274 | return -1; | |
3275 | ||
3276 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3277 | ||
3278 | /* Start by reading up to 4K at a time. The target will throttle | |
3279 | this number down if necessary. */ | |
3280 | buf_alloc = 4096; | |
3281 | buf = xmalloc (buf_alloc); | |
3282 | buf_pos = 0; | |
3283 | while (1) | |
3284 | { | |
3285 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3286 | buf_alloc - buf_pos - padding, buf_pos, | |
3287 | &target_errno); | |
3288 | if (n < 0) | |
3289 | { | |
3290 | /* An error occurred. */ | |
3291 | do_cleanups (close_cleanup); | |
3292 | xfree (buf); | |
3293 | return -1; | |
3294 | } | |
3295 | else if (n == 0) | |
3296 | { | |
3297 | /* Read all there was. */ | |
3298 | do_cleanups (close_cleanup); | |
3299 | if (buf_pos == 0) | |
3300 | xfree (buf); | |
3301 | else | |
3302 | *buf_p = buf; | |
3303 | return buf_pos; | |
3304 | } | |
3305 | ||
3306 | buf_pos += n; | |
3307 | ||
3308 | /* If the buffer is filling up, expand it. */ | |
3309 | if (buf_alloc < buf_pos * 2) | |
3310 | { | |
3311 | buf_alloc *= 2; | |
3312 | buf = xrealloc (buf, buf_alloc); | |
3313 | } | |
3314 | ||
3315 | QUIT; | |
3316 | } | |
3317 | } | |
3318 | ||
3319 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3320 | the size of the transferred data. See the declaration in "target.h" | |
3321 | function for more information about the return value. */ | |
3322 | ||
3323 | LONGEST | |
3324 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3325 | { | |
3326 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3327 | } | |
3328 | ||
3329 | /* Read target file FILENAME. The result is NUL-terminated and | |
3330 | returned as a string, allocated using xmalloc. If an error occurs | |
3331 | or the transfer is unsupported, NULL is returned. Empty objects | |
3332 | are returned as allocated but empty strings. A warning is issued | |
3333 | if the result contains any embedded NUL bytes. */ | |
3334 | ||
3335 | char * | |
3336 | target_fileio_read_stralloc (const char *filename) | |
3337 | { | |
39086a0e PA |
3338 | gdb_byte *buffer; |
3339 | char *bufstr; | |
7313baad UW |
3340 | LONGEST i, transferred; |
3341 | ||
39086a0e PA |
3342 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3343 | bufstr = (char *) buffer; | |
7313baad UW |
3344 | |
3345 | if (transferred < 0) | |
3346 | return NULL; | |
3347 | ||
3348 | if (transferred == 0) | |
3349 | return xstrdup (""); | |
3350 | ||
39086a0e | 3351 | bufstr[transferred] = 0; |
7313baad UW |
3352 | |
3353 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3354 | for (i = strlen (bufstr); i < transferred; i++) |
3355 | if (bufstr[i] != 0) | |
7313baad UW |
3356 | { |
3357 | warning (_("target file %s " | |
3358 | "contained unexpected null characters"), | |
3359 | filename); | |
3360 | break; | |
3361 | } | |
3362 | ||
39086a0e | 3363 | return bufstr; |
7313baad UW |
3364 | } |
3365 | ||
3366 | ||
e0d24f8d | 3367 | static int |
31568a15 TT |
3368 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3369 | CORE_ADDR addr, int len) | |
e0d24f8d | 3370 | { |
f5656ead | 3371 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3372 | } |
3373 | ||
5009afc5 AS |
3374 | static int |
3375 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3376 | CORE_ADDR addr, | |
3377 | CORE_ADDR start, int length) | |
3378 | { | |
3379 | return addr >= start && addr < start + length; | |
3380 | } | |
3381 | ||
c2250ad1 UW |
3382 | static struct gdbarch * |
3383 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3384 | { | |
f5656ead | 3385 | return target_gdbarch (); |
c2250ad1 UW |
3386 | } |
3387 | ||
c906108c | 3388 | static int |
fba45db2 | 3389 | return_zero (void) |
c906108c SS |
3390 | { |
3391 | return 0; | |
3392 | } | |
3393 | ||
ed9a39eb JM |
3394 | /* |
3395 | * Find the next target down the stack from the specified target. | |
3396 | */ | |
3397 | ||
3398 | struct target_ops * | |
fba45db2 | 3399 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3400 | { |
258b763a | 3401 | return t->beneath; |
ed9a39eb JM |
3402 | } |
3403 | ||
8b06beed TT |
3404 | /* See target.h. */ |
3405 | ||
3406 | struct target_ops * | |
3407 | find_target_at (enum strata stratum) | |
3408 | { | |
3409 | struct target_ops *t; | |
3410 | ||
3411 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3412 | if (t->to_stratum == stratum) | |
3413 | return t; | |
3414 | ||
3415 | return NULL; | |
3416 | } | |
3417 | ||
c906108c SS |
3418 | \f |
3419 | /* The inferior process has died. Long live the inferior! */ | |
3420 | ||
3421 | void | |
fba45db2 | 3422 | generic_mourn_inferior (void) |
c906108c | 3423 | { |
7f9f62ba | 3424 | ptid_t ptid; |
c906108c | 3425 | |
7f9f62ba | 3426 | ptid = inferior_ptid; |
39f77062 | 3427 | inferior_ptid = null_ptid; |
7f9f62ba | 3428 | |
f59f708a PA |
3429 | /* Mark breakpoints uninserted in case something tries to delete a |
3430 | breakpoint while we delete the inferior's threads (which would | |
3431 | fail, since the inferior is long gone). */ | |
3432 | mark_breakpoints_out (); | |
3433 | ||
7f9f62ba PA |
3434 | if (!ptid_equal (ptid, null_ptid)) |
3435 | { | |
3436 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3437 | exit_inferior (pid); |
7f9f62ba PA |
3438 | } |
3439 | ||
f59f708a PA |
3440 | /* Note this wipes step-resume breakpoints, so needs to be done |
3441 | after exit_inferior, which ends up referencing the step-resume | |
3442 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3443 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3444 | |
c906108c SS |
3445 | registers_changed (); |
3446 | ||
c906108c SS |
3447 | reopen_exec_file (); |
3448 | reinit_frame_cache (); | |
3449 | ||
9a4105ab AC |
3450 | if (deprecated_detach_hook) |
3451 | deprecated_detach_hook (); | |
c906108c SS |
3452 | } |
3453 | \f | |
fd0a2a6f MK |
3454 | /* Convert a normal process ID to a string. Returns the string in a |
3455 | static buffer. */ | |
c906108c SS |
3456 | |
3457 | char * | |
39f77062 | 3458 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3459 | { |
fd0a2a6f | 3460 | static char buf[32]; |
c906108c | 3461 | |
5fff8fc0 | 3462 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3463 | return buf; |
3464 | } | |
3465 | ||
2c0b251b | 3466 | static char * |
770234d3 | 3467 | default_pid_to_str (struct target_ops *ops, ptid_t ptid) |
117de6a9 PA |
3468 | { |
3469 | return normal_pid_to_str (ptid); | |
3470 | } | |
3471 | ||
9b4eba8e HZ |
3472 | /* Error-catcher for target_find_memory_regions. */ |
3473 | static int | |
2e73927c TT |
3474 | dummy_find_memory_regions (struct target_ops *self, |
3475 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3476 | { |
9b4eba8e | 3477 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3478 | return 0; |
3479 | } | |
3480 | ||
9b4eba8e HZ |
3481 | /* Error-catcher for target_make_corefile_notes. */ |
3482 | static char * | |
fc6691b2 TT |
3483 | dummy_make_corefile_notes (struct target_ops *self, |
3484 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3485 | { |
9b4eba8e | 3486 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3487 | return NULL; |
3488 | } | |
3489 | ||
c906108c SS |
3490 | /* Set up the handful of non-empty slots needed by the dummy target |
3491 | vector. */ | |
3492 | ||
3493 | static void | |
fba45db2 | 3494 | init_dummy_target (void) |
c906108c SS |
3495 | { |
3496 | dummy_target.to_shortname = "None"; | |
3497 | dummy_target.to_longname = "None"; | |
3498 | dummy_target.to_doc = ""; | |
c906108c | 3499 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3500 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3501 | dummy_target.to_supports_disable_randomization |
3502 | = find_default_supports_disable_randomization; | |
c906108c | 3503 | dummy_target.to_stratum = dummy_stratum; |
c35b1492 PA |
3504 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3505 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3506 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3507 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3508 | dummy_target.to_has_execution |
3509 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3510 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3511 | |
3512 | install_dummy_methods (&dummy_target); | |
c906108c | 3513 | } |
c906108c | 3514 | \f |
c906108c | 3515 | static void |
fba45db2 | 3516 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3517 | { |
3518 | debug_target.to_open (args, from_tty); | |
3519 | ||
96baa820 | 3520 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3521 | } |
3522 | ||
f1c07ab0 | 3523 | void |
460014f5 | 3524 | target_close (struct target_ops *targ) |
f1c07ab0 | 3525 | { |
7fdc1521 TT |
3526 | gdb_assert (!target_is_pushed (targ)); |
3527 | ||
f1c07ab0 | 3528 | if (targ->to_xclose != NULL) |
460014f5 | 3529 | targ->to_xclose (targ); |
f1c07ab0 | 3530 | else if (targ->to_close != NULL) |
de90e03d | 3531 | targ->to_close (targ); |
947b8855 PA |
3532 | |
3533 | if (targetdebug) | |
460014f5 | 3534 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3535 | } |
3536 | ||
136d6dae VP |
3537 | void |
3538 | target_attach (char *args, int from_tty) | |
3539 | { | |
e9a29200 TT |
3540 | current_target.to_attach (¤t_target, args, from_tty); |
3541 | if (targetdebug) | |
3542 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3543 | args, from_tty); | |
136d6dae VP |
3544 | } |
3545 | ||
28439f5e PA |
3546 | int |
3547 | target_thread_alive (ptid_t ptid) | |
c906108c | 3548 | { |
cbffc065 | 3549 | int retval; |
28439f5e | 3550 | |
cbffc065 TT |
3551 | retval = current_target.to_thread_alive (¤t_target, ptid); |
3552 | if (targetdebug) | |
3553 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3554 | ptid_get_pid (ptid), retval); | |
28439f5e | 3555 | |
cbffc065 | 3556 | return retval; |
28439f5e PA |
3557 | } |
3558 | ||
3559 | void | |
3560 | target_find_new_threads (void) | |
3561 | { | |
09b0dc2b TT |
3562 | current_target.to_find_new_threads (¤t_target); |
3563 | if (targetdebug) | |
3564 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
c906108c SS |
3565 | } |
3566 | ||
d914c394 SS |
3567 | void |
3568 | target_stop (ptid_t ptid) | |
3569 | { | |
3570 | if (!may_stop) | |
3571 | { | |
3572 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3573 | return; | |
3574 | } | |
3575 | ||
1eab8a48 | 3576 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3577 | } |
3578 | ||
c906108c | 3579 | static void |
f045800c | 3580 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3581 | { |
f045800c | 3582 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3583 | |
28439f5e | 3584 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3585 | } |
3586 | ||
09826ec5 PA |
3587 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3588 | result. The LIST incoming argument is released. */ | |
3589 | ||
3590 | static char * | |
3591 | str_comma_list_concat_elem (char *list, const char *elem) | |
3592 | { | |
3593 | if (list == NULL) | |
3594 | return xstrdup (elem); | |
3595 | else | |
3596 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3597 | } | |
3598 | ||
3599 | /* Helper for target_options_to_string. If OPT is present in | |
3600 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3601 | Returns the new resulting string. OPT is removed from | |
3602 | TARGET_OPTIONS. */ | |
3603 | ||
3604 | static char * | |
3605 | do_option (int *target_options, char *ret, | |
3606 | int opt, char *opt_str) | |
3607 | { | |
3608 | if ((*target_options & opt) != 0) | |
3609 | { | |
3610 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3611 | *target_options &= ~opt; | |
3612 | } | |
3613 | ||
3614 | return ret; | |
3615 | } | |
3616 | ||
3617 | char * | |
3618 | target_options_to_string (int target_options) | |
3619 | { | |
3620 | char *ret = NULL; | |
3621 | ||
3622 | #define DO_TARG_OPTION(OPT) \ | |
3623 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3624 | ||
3625 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3626 | ||
3627 | if (target_options != 0) | |
3628 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3629 | ||
3630 | if (ret == NULL) | |
3631 | ret = xstrdup (""); | |
3632 | return ret; | |
3633 | } | |
3634 | ||
bf0c5130 | 3635 | static void |
56be3814 UW |
3636 | debug_print_register (const char * func, |
3637 | struct regcache *regcache, int regno) | |
bf0c5130 | 3638 | { |
f8d29908 | 3639 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3640 | |
bf0c5130 | 3641 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3642 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3643 | && gdbarch_register_name (gdbarch, regno) != NULL |
3644 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3645 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3646 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3647 | else |
3648 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3649 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3650 | { |
e17a4113 | 3651 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3652 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3653 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3654 | |
0ff58721 | 3655 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3656 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3657 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3658 | { |
3659 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3660 | } | |
81c4a259 | 3661 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3662 | { |
e17a4113 | 3663 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3664 | |
0b1553bc UW |
3665 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3666 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3667 | } |
3668 | } | |
3669 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3670 | } | |
3671 | ||
28439f5e PA |
3672 | void |
3673 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3674 | { |
ad5989bd TT |
3675 | current_target.to_fetch_registers (¤t_target, regcache, regno); |
3676 | if (targetdebug) | |
3677 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
3678 | } |
3679 | ||
28439f5e PA |
3680 | void |
3681 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3682 | { |
28439f5e | 3683 | struct target_ops *t; |
5d502164 | 3684 | |
d914c394 SS |
3685 | if (!may_write_registers) |
3686 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3687 | ||
6b84065d TT |
3688 | current_target.to_store_registers (¤t_target, regcache, regno); |
3689 | if (targetdebug) | |
28439f5e | 3690 | { |
6b84065d | 3691 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3692 | } |
c906108c SS |
3693 | } |
3694 | ||
dc146f7c VP |
3695 | int |
3696 | target_core_of_thread (ptid_t ptid) | |
3697 | { | |
9e538d0d | 3698 | int retval = current_target.to_core_of_thread (¤t_target, ptid); |
dc146f7c | 3699 | |
9e538d0d TT |
3700 | if (targetdebug) |
3701 | fprintf_unfiltered (gdb_stdlog, | |
3702 | "target_core_of_thread (%d) = %d\n", | |
3703 | ptid_get_pid (ptid), retval); | |
3704 | return retval; | |
dc146f7c VP |
3705 | } |
3706 | ||
4a5e7a5b PA |
3707 | int |
3708 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3709 | { | |
eb276a6b TT |
3710 | int retval = current_target.to_verify_memory (¤t_target, |
3711 | data, memaddr, size); | |
5d502164 | 3712 | |
eb276a6b TT |
3713 | if (targetdebug) |
3714 | fprintf_unfiltered (gdb_stdlog, | |
3715 | "target_verify_memory (%s, %s) = %d\n", | |
3716 | paddress (target_gdbarch (), memaddr), | |
3717 | pulongest (size), | |
3718 | retval); | |
3719 | return retval; | |
4a5e7a5b PA |
3720 | } |
3721 | ||
9c06b0b4 TJB |
3722 | /* The documentation for this function is in its prototype declaration in |
3723 | target.h. */ | |
3724 | ||
3725 | int | |
3726 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3727 | { | |
cd4ae029 | 3728 | int ret; |
9c06b0b4 | 3729 | |
cd4ae029 TT |
3730 | ret = current_target.to_insert_mask_watchpoint (¤t_target, |
3731 | addr, mask, rw); | |
9c06b0b4 | 3732 | |
cd4ae029 TT |
3733 | if (targetdebug) |
3734 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3735 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", |
cd4ae029 TT |
3736 | core_addr_to_string (addr), |
3737 | core_addr_to_string (mask), rw, ret); | |
3738 | ||
3739 | return ret; | |
9c06b0b4 TJB |
3740 | } |
3741 | ||
3742 | /* The documentation for this function is in its prototype declaration in | |
3743 | target.h. */ | |
3744 | ||
3745 | int | |
3746 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3747 | { | |
8b1c364c | 3748 | int ret; |
9c06b0b4 | 3749 | |
8b1c364c TT |
3750 | ret = current_target.to_remove_mask_watchpoint (¤t_target, |
3751 | addr, mask, rw); | |
9c06b0b4 | 3752 | |
8b1c364c TT |
3753 | if (targetdebug) |
3754 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3755 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", |
8b1c364c TT |
3756 | core_addr_to_string (addr), |
3757 | core_addr_to_string (mask), rw, ret); | |
9c06b0b4 | 3758 | |
8b1c364c | 3759 | return ret; |
9c06b0b4 TJB |
3760 | } |
3761 | ||
3762 | /* The documentation for this function is in its prototype declaration | |
3763 | in target.h. */ | |
3764 | ||
3765 | int | |
3766 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3767 | { | |
6c7e5e5c TT |
3768 | return current_target.to_masked_watch_num_registers (¤t_target, |
3769 | addr, mask); | |
9c06b0b4 TJB |
3770 | } |
3771 | ||
f1310107 TJB |
3772 | /* The documentation for this function is in its prototype declaration |
3773 | in target.h. */ | |
3774 | ||
3775 | int | |
3776 | target_ranged_break_num_registers (void) | |
3777 | { | |
a134316b | 3778 | return current_target.to_ranged_break_num_registers (¤t_target); |
f1310107 TJB |
3779 | } |
3780 | ||
02d27625 MM |
3781 | /* See target.h. */ |
3782 | ||
02d27625 MM |
3783 | struct btrace_target_info * |
3784 | target_enable_btrace (ptid_t ptid) | |
3785 | { | |
3786 | struct target_ops *t; | |
3787 | ||
3788 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3789 | if (t->to_enable_btrace != NULL) | |
e3c49f88 | 3790 | return t->to_enable_btrace (t, ptid); |
02d27625 MM |
3791 | |
3792 | tcomplain (); | |
3793 | return NULL; | |
3794 | } | |
3795 | ||
3796 | /* See target.h. */ | |
3797 | ||
3798 | void | |
3799 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3800 | { | |
3801 | struct target_ops *t; | |
3802 | ||
3803 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3804 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 | 3805 | { |
25e95349 | 3806 | t->to_disable_btrace (t, btinfo); |
d92f7ee3 SDJ |
3807 | return; |
3808 | } | |
02d27625 MM |
3809 | |
3810 | tcomplain (); | |
3811 | } | |
3812 | ||
3813 | /* See target.h. */ | |
3814 | ||
3815 | void | |
3816 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
3817 | { | |
3818 | struct target_ops *t; | |
3819 | ||
3820 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3821 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 | 3822 | { |
1777056d | 3823 | t->to_teardown_btrace (t, btinfo); |
d92f7ee3 SDJ |
3824 | return; |
3825 | } | |
02d27625 MM |
3826 | |
3827 | tcomplain (); | |
3828 | } | |
3829 | ||
3830 | /* See target.h. */ | |
3831 | ||
969c39fb MM |
3832 | enum btrace_error |
3833 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
3834 | struct btrace_target_info *btinfo, | |
02d27625 MM |
3835 | enum btrace_read_type type) |
3836 | { | |
3837 | struct target_ops *t; | |
3838 | ||
3839 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3840 | if (t->to_read_btrace != NULL) | |
39c49f83 | 3841 | return t->to_read_btrace (t, btrace, btinfo, type); |
02d27625 MM |
3842 | |
3843 | tcomplain (); | |
969c39fb | 3844 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
3845 | } |
3846 | ||
d02ed0bb MM |
3847 | /* See target.h. */ |
3848 | ||
7c1687a9 MM |
3849 | void |
3850 | target_stop_recording (void) | |
3851 | { | |
3852 | struct target_ops *t; | |
3853 | ||
3854 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3855 | if (t->to_stop_recording != NULL) | |
3856 | { | |
c6cd7c02 | 3857 | t->to_stop_recording (t); |
7c1687a9 MM |
3858 | return; |
3859 | } | |
3860 | ||
3861 | /* This is optional. */ | |
3862 | } | |
3863 | ||
3864 | /* See target.h. */ | |
3865 | ||
d02ed0bb MM |
3866 | void |
3867 | target_info_record (void) | |
3868 | { | |
3869 | struct target_ops *t; | |
3870 | ||
3871 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3872 | if (t->to_info_record != NULL) | |
3873 | { | |
630d6a4a | 3874 | t->to_info_record (t); |
d02ed0bb MM |
3875 | return; |
3876 | } | |
3877 | ||
3878 | tcomplain (); | |
3879 | } | |
3880 | ||
3881 | /* See target.h. */ | |
3882 | ||
3883 | void | |
85e1311a | 3884 | target_save_record (const char *filename) |
d02ed0bb | 3885 | { |
f09e2107 | 3886 | current_target.to_save_record (¤t_target, filename); |
d02ed0bb MM |
3887 | } |
3888 | ||
3889 | /* See target.h. */ | |
3890 | ||
3891 | int | |
3892 | target_supports_delete_record (void) | |
3893 | { | |
3894 | struct target_ops *t; | |
3895 | ||
3896 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3897 | if (t->to_delete_record != NULL) | |
3898 | return 1; | |
3899 | ||
3900 | return 0; | |
3901 | } | |
3902 | ||
3903 | /* See target.h. */ | |
3904 | ||
3905 | void | |
3906 | target_delete_record (void) | |
3907 | { | |
07366925 | 3908 | current_target.to_delete_record (¤t_target); |
d02ed0bb MM |
3909 | } |
3910 | ||
3911 | /* See target.h. */ | |
3912 | ||
3913 | int | |
3914 | target_record_is_replaying (void) | |
3915 | { | |
dd2e9d25 | 3916 | return current_target.to_record_is_replaying (¤t_target); |
d02ed0bb MM |
3917 | } |
3918 | ||
3919 | /* See target.h. */ | |
3920 | ||
3921 | void | |
3922 | target_goto_record_begin (void) | |
3923 | { | |
671e76cc | 3924 | current_target.to_goto_record_begin (¤t_target); |
d02ed0bb MM |
3925 | } |
3926 | ||
3927 | /* See target.h. */ | |
3928 | ||
3929 | void | |
3930 | target_goto_record_end (void) | |
3931 | { | |
e9179bb3 | 3932 | current_target.to_goto_record_end (¤t_target); |
d02ed0bb MM |
3933 | } |
3934 | ||
3935 | /* See target.h. */ | |
3936 | ||
3937 | void | |
3938 | target_goto_record (ULONGEST insn) | |
3939 | { | |
05969c84 | 3940 | current_target.to_goto_record (¤t_target, insn); |
d02ed0bb MM |
3941 | } |
3942 | ||
67c86d06 MM |
3943 | /* See target.h. */ |
3944 | ||
3945 | void | |
3946 | target_insn_history (int size, int flags) | |
3947 | { | |
3679abfa | 3948 | current_target.to_insn_history (¤t_target, size, flags); |
67c86d06 MM |
3949 | } |
3950 | ||
3951 | /* See target.h. */ | |
3952 | ||
3953 | void | |
3954 | target_insn_history_from (ULONGEST from, int size, int flags) | |
3955 | { | |
8444ab58 | 3956 | current_target.to_insn_history_from (¤t_target, from, size, flags); |
67c86d06 MM |
3957 | } |
3958 | ||
3959 | /* See target.h. */ | |
3960 | ||
3961 | void | |
3962 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3963 | { | |
c29302cc | 3964 | current_target.to_insn_history_range (¤t_target, begin, end, flags); |
67c86d06 MM |
3965 | } |
3966 | ||
15984c13 MM |
3967 | /* See target.h. */ |
3968 | ||
3969 | void | |
3970 | target_call_history (int size, int flags) | |
3971 | { | |
170049d4 | 3972 | current_target.to_call_history (¤t_target, size, flags); |
15984c13 MM |
3973 | } |
3974 | ||
3975 | /* See target.h. */ | |
3976 | ||
3977 | void | |
3978 | target_call_history_from (ULONGEST begin, int size, int flags) | |
3979 | { | |
16fc27d6 | 3980 | current_target.to_call_history_from (¤t_target, begin, size, flags); |
15984c13 MM |
3981 | } |
3982 | ||
3983 | /* See target.h. */ | |
3984 | ||
3985 | void | |
3986 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3987 | { | |
115d9817 | 3988 | current_target.to_call_history_range (¤t_target, begin, end, flags); |
15984c13 MM |
3989 | } |
3990 | ||
c906108c | 3991 | static void |
f32dbf8c | 3992 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 3993 | { |
f32dbf8c | 3994 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 3995 | |
96baa820 | 3996 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
3997 | } |
3998 | ||
ea001bdc MM |
3999 | /* See target.h. */ |
4000 | ||
4001 | const struct frame_unwind * | |
4002 | target_get_unwinder (void) | |
4003 | { | |
4004 | struct target_ops *t; | |
4005 | ||
4006 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4007 | if (t->to_get_unwinder != NULL) | |
4008 | return t->to_get_unwinder; | |
4009 | ||
4010 | return NULL; | |
4011 | } | |
4012 | ||
4013 | /* See target.h. */ | |
4014 | ||
4015 | const struct frame_unwind * | |
4016 | target_get_tailcall_unwinder (void) | |
4017 | { | |
4018 | struct target_ops *t; | |
4019 | ||
4020 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4021 | if (t->to_get_tailcall_unwinder != NULL) | |
4022 | return t->to_get_tailcall_unwinder; | |
4023 | ||
4024 | return NULL; | |
4025 | } | |
4026 | ||
118e6252 MM |
4027 | /* See target.h. */ |
4028 | ||
4029 | CORE_ADDR | |
4030 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4031 | struct gdbarch *gdbarch) | |
4032 | { | |
4033 | for (; ops != NULL; ops = ops->beneath) | |
4034 | if (ops->to_decr_pc_after_break != NULL) | |
4035 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4036 | ||
4037 | return gdbarch_decr_pc_after_break (gdbarch); | |
4038 | } | |
4039 | ||
4040 | /* See target.h. */ | |
4041 | ||
4042 | CORE_ADDR | |
4043 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4044 | { | |
4045 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4046 | } | |
4047 | ||
c906108c | 4048 | static int |
961cb7b5 | 4049 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4050 | int write, struct mem_attrib *attrib, |
4051 | struct target_ops *target) | |
c906108c SS |
4052 | { |
4053 | int retval; | |
4054 | ||
c8e73a31 AC |
4055 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4056 | attrib, target); | |
c906108c | 4057 | |
96baa820 | 4058 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4059 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4060 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4061 | write ? "write" : "read", retval); |
c906108c | 4062 | |
c906108c SS |
4063 | if (retval > 0) |
4064 | { | |
4065 | int i; | |
4066 | ||
96baa820 | 4067 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4068 | for (i = 0; i < retval; i++) |
4069 | { | |
53b71562 | 4070 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4071 | { |
4072 | if (targetdebug < 2 && i > 0) | |
4073 | { | |
4074 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4075 | break; | |
4076 | } | |
4077 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4078 | } | |
2bc416ba | 4079 | |
96baa820 | 4080 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4081 | } |
4082 | } | |
4083 | ||
96baa820 | 4084 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4085 | |
4086 | return retval; | |
4087 | } | |
4088 | ||
4089 | static void | |
fba45db2 | 4090 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4091 | { |
4092 | debug_target.to_files_info (target); | |
4093 | ||
96baa820 | 4094 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4095 | } |
4096 | ||
4097 | static int | |
3db08215 | 4098 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4099 | struct bp_target_info *bp_tgt) |
c906108c SS |
4100 | { |
4101 | int retval; | |
4102 | ||
6b84065d | 4103 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4104 | |
96baa820 | 4105 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4106 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4107 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4108 | (unsigned long) retval); |
c906108c SS |
4109 | return retval; |
4110 | } | |
4111 | ||
4112 | static int | |
3db08215 | 4113 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4114 | struct bp_target_info *bp_tgt) |
c906108c SS |
4115 | { |
4116 | int retval; | |
4117 | ||
6b84065d | 4118 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4119 | |
96baa820 | 4120 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4121 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4122 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4123 | (unsigned long) retval); |
c906108c SS |
4124 | return retval; |
4125 | } | |
4126 | ||
ccaa32c7 | 4127 | static int |
5461485a TT |
4128 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4129 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4130 | { |
4131 | int retval; | |
4132 | ||
5461485a TT |
4133 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4134 | type, cnt, from_tty); | |
ccaa32c7 GS |
4135 | |
4136 | fprintf_unfiltered (gdb_stdlog, | |
4137 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4138 | (unsigned long) type, | |
4139 | (unsigned long) cnt, | |
4140 | (unsigned long) from_tty, | |
4141 | (unsigned long) retval); | |
4142 | return retval; | |
4143 | } | |
4144 | ||
e0d24f8d | 4145 | static int |
31568a15 TT |
4146 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4147 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4148 | { |
4149 | CORE_ADDR retval; | |
4150 | ||
31568a15 TT |
4151 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4152 | addr, len); | |
e0d24f8d WZ |
4153 | |
4154 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4155 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4156 | core_addr_to_string (addr), (unsigned long) len, | |
4157 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4158 | return retval; |
4159 | } | |
4160 | ||
0cf6dd15 | 4161 | static int |
c3a5ff89 TT |
4162 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4163 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4164 | struct expression *cond) |
4165 | { | |
4166 | int retval; | |
4167 | ||
c3a5ff89 TT |
4168 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4169 | addr, len, | |
3e43a32a | 4170 | rw, cond); |
0cf6dd15 TJB |
4171 | |
4172 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4173 | "target_can_accel_watchpoint_condition " |
4174 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4175 | core_addr_to_string (addr), len, rw, |
4176 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4177 | return retval; |
4178 | } | |
4179 | ||
ccaa32c7 | 4180 | static int |
6a109b6b | 4181 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4182 | { |
4183 | int retval; | |
4184 | ||
6a109b6b | 4185 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4186 | |
4187 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4188 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4189 | (unsigned long) retval); |
4190 | return retval; | |
4191 | } | |
4192 | ||
4aa7a7f5 JJ |
4193 | static int |
4194 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4195 | { |
4aa7a7f5 | 4196 | int retval; |
ccaa32c7 | 4197 | |
4aa7a7f5 | 4198 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4199 | |
4200 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4201 | "target_stopped_data_address ([%s]) = %ld\n", |
4202 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4203 | (unsigned long)retval); |
ccaa32c7 GS |
4204 | return retval; |
4205 | } | |
4206 | ||
5009afc5 AS |
4207 | static int |
4208 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4209 | CORE_ADDR addr, | |
4210 | CORE_ADDR start, int length) | |
4211 | { | |
4212 | int retval; | |
4213 | ||
4214 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4215 | start, length); | |
4216 | ||
4217 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4218 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4219 | core_addr_to_string (addr), core_addr_to_string (start), | |
4220 | length, retval); | |
5009afc5 AS |
4221 | return retval; |
4222 | } | |
4223 | ||
ccaa32c7 | 4224 | static int |
23a26771 TT |
4225 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4226 | struct gdbarch *gdbarch, | |
a6d9a66e | 4227 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4228 | { |
4229 | int retval; | |
4230 | ||
23a26771 TT |
4231 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4232 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4233 | |
4234 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4235 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4236 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4237 | (unsigned long) retval); |
4238 | return retval; | |
4239 | } | |
4240 | ||
4241 | static int | |
a64dc96c TT |
4242 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4243 | struct gdbarch *gdbarch, | |
a6d9a66e | 4244 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4245 | { |
4246 | int retval; | |
4247 | ||
a64dc96c TT |
4248 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4249 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4250 | |
4251 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4252 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4253 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4254 | (unsigned long) retval); |
4255 | return retval; | |
4256 | } | |
4257 | ||
4258 | static int | |
7bb99c53 TT |
4259 | debug_to_insert_watchpoint (struct target_ops *self, |
4260 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4261 | struct expression *cond) |
ccaa32c7 GS |
4262 | { |
4263 | int retval; | |
4264 | ||
7bb99c53 TT |
4265 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4266 | addr, len, type, cond); | |
ccaa32c7 GS |
4267 | |
4268 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4269 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4270 | core_addr_to_string (addr), len, type, | |
4271 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4272 | return retval; |
4273 | } | |
4274 | ||
4275 | static int | |
11b5219a TT |
4276 | debug_to_remove_watchpoint (struct target_ops *self, |
4277 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4278 | struct expression *cond) |
ccaa32c7 GS |
4279 | { |
4280 | int retval; | |
4281 | ||
11b5219a TT |
4282 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4283 | addr, len, type, cond); | |
ccaa32c7 GS |
4284 | |
4285 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4286 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4287 | core_addr_to_string (addr), len, type, | |
4288 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4289 | return retval; |
4290 | } | |
4291 | ||
c906108c | 4292 | static void |
c42bf286 | 4293 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4294 | { |
c42bf286 | 4295 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4296 | |
96baa820 | 4297 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4298 | } |
4299 | ||
4300 | static void | |
d2f640d4 | 4301 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4302 | { |
d2f640d4 | 4303 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4304 | |
96baa820 | 4305 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4306 | } |
4307 | ||
4308 | static void | |
2e1e1a19 | 4309 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4310 | { |
2e1e1a19 | 4311 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4312 | |
96baa820 | 4313 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4314 | } |
4315 | ||
4316 | static void | |
e3594fd1 | 4317 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4318 | { |
e3594fd1 | 4319 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4320 | |
96baa820 | 4321 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4322 | } |
4323 | ||
a790ad35 | 4324 | static void |
ae3bd431 | 4325 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4326 | { |
ae3bd431 | 4327 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4328 | |
4329 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4330 | } | |
4331 | ||
c906108c | 4332 | static void |
0a4f40a2 TT |
4333 | debug_to_terminal_info (struct target_ops *self, |
4334 | const char *arg, int from_tty) | |
c906108c | 4335 | { |
0a4f40a2 | 4336 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4337 | |
96baa820 | 4338 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4339 | from_tty); |
4340 | } | |
4341 | ||
c906108c | 4342 | static void |
71a9f134 | 4343 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4344 | { |
71a9f134 | 4345 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4346 | |
96baa820 | 4347 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4348 | } |
4349 | ||
c906108c | 4350 | static void |
2e97a79e | 4351 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4352 | { |
2e97a79e | 4353 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4354 | |
96baa820 | 4355 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4356 | ptid_get_pid (ptid)); |
c906108c SS |
4357 | } |
4358 | ||
77b06cd7 | 4359 | static int |
a863b201 | 4360 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4361 | { |
77b06cd7 TJB |
4362 | int retval; |
4363 | ||
a863b201 | 4364 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4365 | |
4366 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4367 | pid, retval); | |
c906108c | 4368 | |
77b06cd7 | 4369 | return retval; |
c906108c SS |
4370 | } |
4371 | ||
4372 | static int | |
973fc227 | 4373 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4374 | { |
c5aa993b | 4375 | int retval; |
c906108c | 4376 | |
973fc227 | 4377 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4378 | |
96baa820 | 4379 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4380 | pid, retval); |
c906108c SS |
4381 | |
4382 | return retval; | |
4383 | } | |
4384 | ||
77b06cd7 | 4385 | static int |
3ecc7da0 | 4386 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4387 | { |
77b06cd7 TJB |
4388 | int retval; |
4389 | ||
3ecc7da0 | 4390 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4391 | |
77b06cd7 TJB |
4392 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4393 | pid, retval); | |
4394 | ||
4395 | return retval; | |
c906108c SS |
4396 | } |
4397 | ||
4398 | static int | |
e98cf0cd | 4399 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4400 | { |
c5aa993b | 4401 | int retval; |
c906108c | 4402 | |
e98cf0cd | 4403 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4404 | |
96baa820 | 4405 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4406 | pid, retval); |
c906108c SS |
4407 | |
4408 | return retval; | |
4409 | } | |
4410 | ||
77b06cd7 | 4411 | static int |
ba025e51 | 4412 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4413 | { |
77b06cd7 TJB |
4414 | int retval; |
4415 | ||
ba025e51 | 4416 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4417 | |
77b06cd7 TJB |
4418 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4419 | pid, retval); | |
4420 | ||
4421 | return retval; | |
c906108c SS |
4422 | } |
4423 | ||
4424 | static int | |
758e29d2 | 4425 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4426 | { |
c5aa993b | 4427 | int retval; |
c906108c | 4428 | |
758e29d2 | 4429 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4430 | |
96baa820 | 4431 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4432 | pid, retval); |
c906108c SS |
4433 | |
4434 | return retval; | |
4435 | } | |
4436 | ||
c906108c | 4437 | static int |
d796e1d6 TT |
4438 | debug_to_has_exited (struct target_ops *self, |
4439 | int pid, int wait_status, int *exit_status) | |
c906108c | 4440 | { |
c5aa993b | 4441 | int has_exited; |
c906108c | 4442 | |
d796e1d6 TT |
4443 | has_exited = debug_target.to_has_exited (&debug_target, |
4444 | pid, wait_status, exit_status); | |
c906108c | 4445 | |
96baa820 | 4446 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4447 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4448 | |
4449 | return has_exited; | |
4450 | } | |
4451 | ||
c906108c | 4452 | static int |
da82bd6b | 4453 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4454 | { |
4455 | int retval; | |
4456 | ||
da82bd6b | 4457 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4458 | |
96baa820 | 4459 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4460 | |
4461 | return retval; | |
4462 | } | |
4463 | ||
c2250ad1 UW |
4464 | static struct gdbarch * |
4465 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4466 | { | |
4467 | struct gdbarch *retval; | |
4468 | ||
4469 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4470 | ||
3e43a32a MS |
4471 | fprintf_unfiltered (gdb_stdlog, |
4472 | "target_thread_architecture (%s) = %s [%s]\n", | |
4473 | target_pid_to_str (ptid), | |
4474 | host_address_to_string (retval), | |
c2250ad1 UW |
4475 | gdbarch_bfd_arch_info (retval)->printable_name); |
4476 | return retval; | |
4477 | } | |
4478 | ||
c906108c | 4479 | static void |
1eab8a48 | 4480 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4481 | { |
1eab8a48 | 4482 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4483 | |
94cc34af PA |
4484 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4485 | target_pid_to_str (ptid)); | |
c906108c SS |
4486 | } |
4487 | ||
96baa820 | 4488 | static void |
1aac633b | 4489 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4490 | struct ui_file *outbuf) |
96baa820 | 4491 | { |
1aac633b | 4492 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4493 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4494 | } | |
4495 | ||
c906108c | 4496 | static char * |
8dd27370 | 4497 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4498 | { |
c5aa993b | 4499 | char *exec_file; |
c906108c | 4500 | |
8dd27370 | 4501 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4502 | |
96baa820 | 4503 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4504 | pid, exec_file); |
c906108c SS |
4505 | |
4506 | return exec_file; | |
4507 | } | |
4508 | ||
c906108c | 4509 | static void |
fba45db2 | 4510 | setup_target_debug (void) |
c906108c SS |
4511 | { |
4512 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4513 | ||
4514 | current_target.to_open = debug_to_open; | |
c906108c | 4515 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4516 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4517 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4518 | current_target.to_files_info = debug_to_files_info; |
4519 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4520 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4521 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4522 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4523 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4524 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4525 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4526 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4527 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4528 | current_target.to_watchpoint_addr_within_range |
4529 | = debug_to_watchpoint_addr_within_range; | |
4530 | current_target.to_region_ok_for_hw_watchpoint | |
4531 | = debug_to_region_ok_for_hw_watchpoint; | |
4532 | current_target.to_can_accel_watchpoint_condition | |
4533 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4534 | current_target.to_terminal_init = debug_to_terminal_init; |
4535 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4536 | current_target.to_terminal_ours_for_output |
4537 | = debug_to_terminal_ours_for_output; | |
c906108c | 4538 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4539 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4540 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4541 | current_target.to_load = debug_to_load; |
c906108c | 4542 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4543 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4544 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4545 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4546 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4547 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4548 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4549 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4550 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4551 | current_target.to_stop = debug_to_stop; |
96baa820 | 4552 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4553 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4554 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4555 | } |
c906108c | 4556 | \f |
c5aa993b JM |
4557 | |
4558 | static char targ_desc[] = | |
3e43a32a MS |
4559 | "Names of targets and files being debugged.\nShows the entire \ |
4560 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4561 | core-file, and process, if any), as well as the symbol file name."; |
4562 | ||
a53f3625 TT |
4563 | static void |
4564 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4565 | { | |
4566 | error (_("\"monitor\" command not supported by this target.")); | |
4567 | } | |
4568 | ||
96baa820 JM |
4569 | static void |
4570 | do_monitor_command (char *cmd, | |
4571 | int from_tty) | |
4572 | { | |
96baa820 JM |
4573 | target_rcmd (cmd, gdb_stdtarg); |
4574 | } | |
4575 | ||
87680a14 JB |
4576 | /* Print the name of each layers of our target stack. */ |
4577 | ||
4578 | static void | |
4579 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4580 | { | |
4581 | struct target_ops *t; | |
4582 | ||
4583 | printf_filtered (_("The current target stack is:\n")); | |
4584 | ||
4585 | for (t = target_stack; t != NULL; t = t->beneath) | |
4586 | { | |
4587 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4588 | } | |
4589 | } | |
4590 | ||
c6ebd6cf VP |
4591 | /* Controls if async mode is permitted. */ |
4592 | int target_async_permitted = 0; | |
4593 | ||
4594 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4595 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4596 | static int target_async_permitted_1 = 0; |
4597 | ||
4598 | static void | |
9401a810 PA |
4599 | set_target_async_command (char *args, int from_tty, |
4600 | struct cmd_list_element *c) | |
c6ebd6cf | 4601 | { |
c35b1492 | 4602 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4603 | { |
4604 | target_async_permitted_1 = target_async_permitted; | |
4605 | error (_("Cannot change this setting while the inferior is running.")); | |
4606 | } | |
4607 | ||
4608 | target_async_permitted = target_async_permitted_1; | |
4609 | } | |
4610 | ||
4611 | static void | |
9401a810 PA |
4612 | show_target_async_command (struct ui_file *file, int from_tty, |
4613 | struct cmd_list_element *c, | |
4614 | const char *value) | |
c6ebd6cf | 4615 | { |
3e43a32a MS |
4616 | fprintf_filtered (file, |
4617 | _("Controlling the inferior in " | |
4618 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4619 | } |
4620 | ||
d914c394 SS |
4621 | /* Temporary copies of permission settings. */ |
4622 | ||
4623 | static int may_write_registers_1 = 1; | |
4624 | static int may_write_memory_1 = 1; | |
4625 | static int may_insert_breakpoints_1 = 1; | |
4626 | static int may_insert_tracepoints_1 = 1; | |
4627 | static int may_insert_fast_tracepoints_1 = 1; | |
4628 | static int may_stop_1 = 1; | |
4629 | ||
4630 | /* Make the user-set values match the real values again. */ | |
4631 | ||
4632 | void | |
4633 | update_target_permissions (void) | |
4634 | { | |
4635 | may_write_registers_1 = may_write_registers; | |
4636 | may_write_memory_1 = may_write_memory; | |
4637 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4638 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4639 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4640 | may_stop_1 = may_stop; | |
4641 | } | |
4642 | ||
4643 | /* The one function handles (most of) the permission flags in the same | |
4644 | way. */ | |
4645 | ||
4646 | static void | |
4647 | set_target_permissions (char *args, int from_tty, | |
4648 | struct cmd_list_element *c) | |
4649 | { | |
4650 | if (target_has_execution) | |
4651 | { | |
4652 | update_target_permissions (); | |
4653 | error (_("Cannot change this setting while the inferior is running.")); | |
4654 | } | |
4655 | ||
4656 | /* Make the real values match the user-changed values. */ | |
4657 | may_write_registers = may_write_registers_1; | |
4658 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4659 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4660 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4661 | may_stop = may_stop_1; | |
4662 | update_observer_mode (); | |
4663 | } | |
4664 | ||
4665 | /* Set memory write permission independently of observer mode. */ | |
4666 | ||
4667 | static void | |
4668 | set_write_memory_permission (char *args, int from_tty, | |
4669 | struct cmd_list_element *c) | |
4670 | { | |
4671 | /* Make the real values match the user-changed values. */ | |
4672 | may_write_memory = may_write_memory_1; | |
4673 | update_observer_mode (); | |
4674 | } | |
4675 | ||
4676 | ||
c906108c | 4677 | void |
fba45db2 | 4678 | initialize_targets (void) |
c906108c SS |
4679 | { |
4680 | init_dummy_target (); | |
4681 | push_target (&dummy_target); | |
4682 | ||
4683 | add_info ("target", target_info, targ_desc); | |
4684 | add_info ("files", target_info, targ_desc); | |
4685 | ||
ccce17b0 | 4686 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4687 | Set target debugging."), _("\ |
4688 | Show target debugging."), _("\ | |
333dabeb DJ |
4689 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4690 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4691 | command."), |
ccce17b0 YQ |
4692 | NULL, |
4693 | show_targetdebug, | |
4694 | &setdebuglist, &showdebuglist); | |
3a11626d | 4695 | |
2bc416ba | 4696 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4697 | &trust_readonly, _("\ |
4698 | Set mode for reading from readonly sections."), _("\ | |
4699 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4700 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4701 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4702 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4703 | NULL, |
920d2a44 | 4704 | show_trust_readonly, |
e707bbc2 | 4705 | &setlist, &showlist); |
96baa820 JM |
4706 | |
4707 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4708 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4709 | |
87680a14 JB |
4710 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4711 | _("Print the name of each layer of the internal target stack."), | |
4712 | &maintenanceprintlist); | |
4713 | ||
c6ebd6cf VP |
4714 | add_setshow_boolean_cmd ("target-async", no_class, |
4715 | &target_async_permitted_1, _("\ | |
4716 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4717 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4718 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
4719 | set_target_async_command, |
4720 | show_target_async_command, | |
c6ebd6cf VP |
4721 | &setlist, |
4722 | &showlist); | |
4723 | ||
d914c394 SS |
4724 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4725 | &may_write_registers_1, _("\ | |
4726 | Set permission to write into registers."), _("\ | |
4727 | Show permission to write into registers."), _("\ | |
4728 | When this permission is on, GDB may write into the target's registers.\n\ | |
4729 | Otherwise, any sort of write attempt will result in an error."), | |
4730 | set_target_permissions, NULL, | |
4731 | &setlist, &showlist); | |
4732 | ||
4733 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4734 | &may_write_memory_1, _("\ | |
4735 | Set permission to write into target memory."), _("\ | |
4736 | Show permission to write into target memory."), _("\ | |
4737 | When this permission is on, GDB may write into the target's memory.\n\ | |
4738 | Otherwise, any sort of write attempt will result in an error."), | |
4739 | set_write_memory_permission, NULL, | |
4740 | &setlist, &showlist); | |
4741 | ||
4742 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4743 | &may_insert_breakpoints_1, _("\ | |
4744 | Set permission to insert breakpoints in the target."), _("\ | |
4745 | Show permission to insert breakpoints in the target."), _("\ | |
4746 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4747 | Otherwise, any sort of insertion attempt will result in an error."), | |
4748 | set_target_permissions, NULL, | |
4749 | &setlist, &showlist); | |
4750 | ||
4751 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4752 | &may_insert_tracepoints_1, _("\ | |
4753 | Set permission to insert tracepoints in the target."), _("\ | |
4754 | Show permission to insert tracepoints in the target."), _("\ | |
4755 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4756 | Otherwise, any sort of insertion attempt will result in an error."), | |
4757 | set_target_permissions, NULL, | |
4758 | &setlist, &showlist); | |
4759 | ||
4760 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4761 | &may_insert_fast_tracepoints_1, _("\ | |
4762 | Set permission to insert fast tracepoints in the target."), _("\ | |
4763 | Show permission to insert fast tracepoints in the target."), _("\ | |
4764 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4765 | Otherwise, any sort of insertion attempt will result in an error."), | |
4766 | set_target_permissions, NULL, | |
4767 | &setlist, &showlist); | |
4768 | ||
4769 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4770 | &may_stop_1, _("\ | |
4771 | Set permission to interrupt or signal the target."), _("\ | |
4772 | Show permission to interrupt or signal the target."), _("\ | |
4773 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4774 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4775 | set_target_permissions, NULL, | |
4776 | &setlist, &showlist); | |
c906108c | 4777 | } |