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