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" | |
45741a9c | 30 | #include "infrun.h" |
c906108c SS |
31 | #include "bfd.h" |
32 | #include "symfile.h" | |
33 | #include "objfiles.h" | |
4930751a | 34 | #include "dcache.h" |
c906108c | 35 | #include <signal.h> |
4e052eda | 36 | #include "regcache.h" |
0088c768 | 37 | #include "gdb_assert.h" |
b6591e8b | 38 | #include "gdbcore.h" |
9e35dae4 | 39 | #include "exceptions.h" |
424163ea | 40 | #include "target-descriptions.h" |
e1ac3328 | 41 | #include "gdbthread.h" |
b9db4ced | 42 | #include "solib.h" |
07b82ea5 | 43 | #include "exec.h" |
edb3359d | 44 | #include "inline-frame.h" |
2f4d8875 | 45 | #include "tracepoint.h" |
7313baad | 46 | #include "gdb/fileio.h" |
8ffcbaaf | 47 | #include "agent.h" |
8de71aab | 48 | #include "auxv.h" |
c906108c | 49 | |
a14ed312 | 50 | static void target_info (char *, int); |
c906108c | 51 | |
0a4f40a2 | 52 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 53 | |
5009afc5 AS |
54 | static int default_watchpoint_addr_within_range (struct target_ops *, |
55 | CORE_ADDR, CORE_ADDR, int); | |
56 | ||
31568a15 TT |
57 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
58 | CORE_ADDR, int); | |
e0d24f8d | 59 | |
a53f3625 TT |
60 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
61 | ||
4229b31d TT |
62 | static ptid_t default_get_ada_task_ptid (struct target_ops *self, |
63 | long lwp, long tid); | |
64 | ||
098dba18 TT |
65 | static int default_follow_fork (struct target_ops *self, int follow_child, |
66 | int detach_fork); | |
67 | ||
8d657035 TT |
68 | static void default_mourn_inferior (struct target_ops *self); |
69 | ||
58a5184e TT |
70 | static int default_search_memory (struct target_ops *ops, |
71 | CORE_ADDR start_addr, | |
72 | ULONGEST search_space_len, | |
73 | const gdb_byte *pattern, | |
74 | ULONGEST pattern_len, | |
75 | CORE_ADDR *found_addrp); | |
76 | ||
936d2992 PA |
77 | static int default_verify_memory (struct target_ops *self, |
78 | const gdb_byte *data, | |
79 | CORE_ADDR memaddr, ULONGEST size); | |
80 | ||
c25c4a8b | 81 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 82 | |
555bbdeb TT |
83 | static int return_zero (struct target_ops *); |
84 | ||
85 | static int return_zero_has_execution (struct target_ops *, ptid_t); | |
c906108c | 86 | |
a14ed312 | 87 | static void target_command (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static struct target_ops *find_default_run_target (char *); |
c906108c | 90 | |
c2250ad1 UW |
91 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
92 | ptid_t ptid); | |
93 | ||
0b5a2719 TT |
94 | static int dummy_find_memory_regions (struct target_ops *self, |
95 | find_memory_region_ftype ignore1, | |
96 | void *ignore2); | |
97 | ||
16f796b1 TT |
98 | static char *dummy_make_corefile_notes (struct target_ops *self, |
99 | bfd *ignore1, int *ignore2); | |
100 | ||
770234d3 TT |
101 | static char *default_pid_to_str (struct target_ops *ops, ptid_t ptid); |
102 | ||
fe31bf5b TT |
103 | static enum exec_direction_kind default_execution_direction |
104 | (struct target_ops *self); | |
105 | ||
c0eca49f TT |
106 | static CORE_ADDR default_target_decr_pc_after_break (struct target_ops *ops, |
107 | struct gdbarch *gdbarch); | |
108 | ||
1101cb7b TT |
109 | #include "target-delegates.c" |
110 | ||
a14ed312 | 111 | static void init_dummy_target (void); |
c906108c | 112 | |
aa869812 AC |
113 | static struct target_ops debug_target; |
114 | ||
a14ed312 | 115 | static void debug_to_open (char *, int); |
c906108c | 116 | |
f32dbf8c MM |
117 | static void debug_to_prepare_to_store (struct target_ops *self, |
118 | struct regcache *); | |
c906108c | 119 | |
a14ed312 | 120 | static void debug_to_files_info (struct target_ops *); |
c906108c | 121 | |
3db08215 | 122 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 123 | struct bp_target_info *); |
c906108c | 124 | |
3db08215 | 125 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 126 | struct bp_target_info *); |
c906108c | 127 | |
5461485a TT |
128 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
129 | int, int, int); | |
ccaa32c7 | 130 | |
23a26771 TT |
131 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
132 | struct gdbarch *, | |
a6d9a66e | 133 | struct bp_target_info *); |
ccaa32c7 | 134 | |
a64dc96c TT |
135 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
136 | struct gdbarch *, | |
a6d9a66e | 137 | struct bp_target_info *); |
ccaa32c7 | 138 | |
7bb99c53 TT |
139 | static int debug_to_insert_watchpoint (struct target_ops *self, |
140 | CORE_ADDR, int, int, | |
0cf6dd15 | 141 | struct expression *); |
ccaa32c7 | 142 | |
11b5219a TT |
143 | static int debug_to_remove_watchpoint (struct target_ops *self, |
144 | CORE_ADDR, int, int, | |
0cf6dd15 | 145 | struct expression *); |
ccaa32c7 | 146 | |
4aa7a7f5 | 147 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 148 | |
5009afc5 AS |
149 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
150 | CORE_ADDR, CORE_ADDR, int); | |
151 | ||
31568a15 TT |
152 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
153 | CORE_ADDR, int); | |
e0d24f8d | 154 | |
c3a5ff89 TT |
155 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
156 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
157 | struct expression *); |
158 | ||
c42bf286 | 159 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 160 | |
d2f640d4 | 161 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 162 | |
2e1e1a19 | 163 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 164 | |
ae3bd431 | 165 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 166 | |
e3594fd1 | 167 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 168 | |
71a9f134 | 169 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 170 | |
da82bd6b | 171 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 172 | |
1eab8a48 | 173 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 174 | |
c906108c | 175 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 176 | array; the current index into the array; the allocated size of the |
c906108c SS |
177 | array. */ |
178 | struct target_ops **target_structs; | |
179 | unsigned target_struct_size; | |
c906108c SS |
180 | unsigned target_struct_allocsize; |
181 | #define DEFAULT_ALLOCSIZE 10 | |
182 | ||
183 | /* The initial current target, so that there is always a semi-valid | |
184 | current target. */ | |
185 | ||
186 | static struct target_ops dummy_target; | |
187 | ||
188 | /* Top of target stack. */ | |
189 | ||
258b763a | 190 | static struct target_ops *target_stack; |
c906108c SS |
191 | |
192 | /* The target structure we are currently using to talk to a process | |
193 | or file or whatever "inferior" we have. */ | |
194 | ||
195 | struct target_ops current_target; | |
196 | ||
197 | /* Command list for target. */ | |
198 | ||
199 | static struct cmd_list_element *targetlist = NULL; | |
200 | ||
cf7a04e8 DJ |
201 | /* Nonzero if we should trust readonly sections from the |
202 | executable when reading memory. */ | |
203 | ||
204 | static int trust_readonly = 0; | |
205 | ||
8defab1a DJ |
206 | /* Nonzero if we should show true memory content including |
207 | memory breakpoint inserted by gdb. */ | |
208 | ||
209 | static int show_memory_breakpoints = 0; | |
210 | ||
d914c394 SS |
211 | /* These globals control whether GDB attempts to perform these |
212 | operations; they are useful for targets that need to prevent | |
213 | inadvertant disruption, such as in non-stop mode. */ | |
214 | ||
215 | int may_write_registers = 1; | |
216 | ||
217 | int may_write_memory = 1; | |
218 | ||
219 | int may_insert_breakpoints = 1; | |
220 | ||
221 | int may_insert_tracepoints = 1; | |
222 | ||
223 | int may_insert_fast_tracepoints = 1; | |
224 | ||
225 | int may_stop = 1; | |
226 | ||
c906108c SS |
227 | /* Non-zero if we want to see trace of target level stuff. */ |
228 | ||
ccce17b0 | 229 | static unsigned int targetdebug = 0; |
920d2a44 AC |
230 | static void |
231 | show_targetdebug (struct ui_file *file, int from_tty, | |
232 | struct cmd_list_element *c, const char *value) | |
233 | { | |
234 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
235 | } | |
c906108c | 236 | |
a14ed312 | 237 | static void setup_target_debug (void); |
c906108c | 238 | |
c906108c SS |
239 | /* The user just typed 'target' without the name of a target. */ |
240 | ||
c906108c | 241 | static void |
fba45db2 | 242 | target_command (char *arg, int from_tty) |
c906108c SS |
243 | { |
244 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
245 | gdb_stdout); | |
246 | } | |
247 | ||
c35b1492 PA |
248 | /* Default target_has_* methods for process_stratum targets. */ |
249 | ||
250 | int | |
251 | default_child_has_all_memory (struct target_ops *ops) | |
252 | { | |
253 | /* If no inferior selected, then we can't read memory here. */ | |
254 | if (ptid_equal (inferior_ptid, null_ptid)) | |
255 | return 0; | |
256 | ||
257 | return 1; | |
258 | } | |
259 | ||
260 | int | |
261 | default_child_has_memory (struct target_ops *ops) | |
262 | { | |
263 | /* If no inferior selected, then we can't read memory here. */ | |
264 | if (ptid_equal (inferior_ptid, null_ptid)) | |
265 | return 0; | |
266 | ||
267 | return 1; | |
268 | } | |
269 | ||
270 | int | |
271 | default_child_has_stack (struct target_ops *ops) | |
272 | { | |
273 | /* If no inferior selected, there's no stack. */ | |
274 | if (ptid_equal (inferior_ptid, null_ptid)) | |
275 | return 0; | |
276 | ||
277 | return 1; | |
278 | } | |
279 | ||
280 | int | |
281 | default_child_has_registers (struct target_ops *ops) | |
282 | { | |
283 | /* Can't read registers from no inferior. */ | |
284 | if (ptid_equal (inferior_ptid, null_ptid)) | |
285 | return 0; | |
286 | ||
287 | return 1; | |
288 | } | |
289 | ||
290 | int | |
aeaec162 | 291 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
292 | { |
293 | /* If there's no thread selected, then we can't make it run through | |
294 | hoops. */ | |
aeaec162 | 295 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
296 | return 0; |
297 | ||
298 | return 1; | |
299 | } | |
300 | ||
301 | ||
302 | int | |
303 | target_has_all_memory_1 (void) | |
304 | { | |
305 | struct target_ops *t; | |
306 | ||
307 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
308 | if (t->to_has_all_memory (t)) | |
309 | return 1; | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | int | |
315 | target_has_memory_1 (void) | |
316 | { | |
317 | struct target_ops *t; | |
318 | ||
319 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
320 | if (t->to_has_memory (t)) | |
321 | return 1; | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | int | |
327 | target_has_stack_1 (void) | |
328 | { | |
329 | struct target_ops *t; | |
330 | ||
331 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
332 | if (t->to_has_stack (t)) | |
333 | return 1; | |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
338 | int | |
339 | target_has_registers_1 (void) | |
340 | { | |
341 | struct target_ops *t; | |
342 | ||
343 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
344 | if (t->to_has_registers (t)) | |
345 | return 1; | |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
350 | int | |
aeaec162 | 351 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
352 | { |
353 | struct target_ops *t; | |
354 | ||
355 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 356 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
357 | return 1; |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
aeaec162 TT |
362 | int |
363 | target_has_execution_current (void) | |
364 | { | |
365 | return target_has_execution_1 (inferior_ptid); | |
366 | } | |
367 | ||
c22a2b88 TT |
368 | /* Complete initialization of T. This ensures that various fields in |
369 | T are set, if needed by the target implementation. */ | |
c906108c SS |
370 | |
371 | void | |
c22a2b88 | 372 | complete_target_initialization (struct target_ops *t) |
c906108c | 373 | { |
0088c768 | 374 | /* Provide default values for all "must have" methods. */ |
0088c768 | 375 | |
c35b1492 | 376 | if (t->to_has_all_memory == NULL) |
555bbdeb | 377 | t->to_has_all_memory = return_zero; |
c35b1492 PA |
378 | |
379 | if (t->to_has_memory == NULL) | |
555bbdeb | 380 | t->to_has_memory = return_zero; |
c35b1492 PA |
381 | |
382 | if (t->to_has_stack == NULL) | |
555bbdeb | 383 | t->to_has_stack = return_zero; |
c35b1492 PA |
384 | |
385 | if (t->to_has_registers == NULL) | |
555bbdeb | 386 | t->to_has_registers = return_zero; |
c35b1492 PA |
387 | |
388 | if (t->to_has_execution == NULL) | |
555bbdeb | 389 | t->to_has_execution = return_zero_has_execution; |
1101cb7b | 390 | |
b3ccfe11 TT |
391 | /* These methods can be called on an unpushed target and so require |
392 | a default implementation if the target might plausibly be the | |
393 | default run target. */ | |
394 | gdb_assert (t->to_can_run == NULL || (t->to_can_async_p != NULL | |
395 | && t->to_supports_non_stop != NULL)); | |
396 | ||
1101cb7b | 397 | install_delegators (t); |
c22a2b88 TT |
398 | } |
399 | ||
400 | /* Add possible target architecture T to the list and add a new | |
401 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
402 | completer if not NULL. */ | |
403 | ||
404 | void | |
405 | add_target_with_completer (struct target_ops *t, | |
406 | completer_ftype *completer) | |
407 | { | |
408 | struct cmd_list_element *c; | |
409 | ||
410 | complete_target_initialization (t); | |
c35b1492 | 411 | |
c906108c SS |
412 | if (!target_structs) |
413 | { | |
414 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
415 | target_structs = (struct target_ops **) xmalloc | |
416 | (target_struct_allocsize * sizeof (*target_structs)); | |
417 | } | |
418 | if (target_struct_size >= target_struct_allocsize) | |
419 | { | |
420 | target_struct_allocsize *= 2; | |
421 | target_structs = (struct target_ops **) | |
c5aa993b JM |
422 | xrealloc ((char *) target_structs, |
423 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
424 | } |
425 | target_structs[target_struct_size++] = t; | |
c906108c SS |
426 | |
427 | if (targetlist == NULL) | |
1bedd215 AC |
428 | add_prefix_cmd ("target", class_run, target_command, _("\ |
429 | Connect to a target machine or process.\n\ | |
c906108c SS |
430 | The first argument is the type or protocol of the target machine.\n\ |
431 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
432 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 433 | `help target ' followed by the protocol name."), |
c906108c | 434 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
435 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
436 | &targetlist); | |
437 | if (completer != NULL) | |
438 | set_cmd_completer (c, completer); | |
439 | } | |
440 | ||
441 | /* Add a possible target architecture to the list. */ | |
442 | ||
443 | void | |
444 | add_target (struct target_ops *t) | |
445 | { | |
446 | add_target_with_completer (t, NULL); | |
c906108c SS |
447 | } |
448 | ||
b48d48eb MM |
449 | /* See target.h. */ |
450 | ||
451 | void | |
452 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
453 | { | |
454 | struct cmd_list_element *c; | |
455 | char *alt; | |
456 | ||
457 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
458 | see PR cli/15104. */ | |
459 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
460 | alt = xstrprintf ("target %s", t->to_shortname); | |
461 | deprecate_cmd (c, alt); | |
462 | } | |
463 | ||
c906108c SS |
464 | /* Stub functions */ |
465 | ||
7d85a9c0 JB |
466 | void |
467 | target_kill (void) | |
468 | { | |
423a4807 TT |
469 | if (targetdebug) |
470 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
7d85a9c0 | 471 | |
423a4807 | 472 | current_target.to_kill (¤t_target); |
7d85a9c0 JB |
473 | } |
474 | ||
11cf8741 JM |
475 | void |
476 | target_load (char *arg, int from_tty) | |
477 | { | |
4e5d721f | 478 | target_dcache_invalidate (); |
71a9f134 | 479 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
480 | } |
481 | ||
d9d2d8b6 PA |
482 | void |
483 | target_terminal_inferior (void) | |
484 | { | |
485 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 486 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
487 | this point the target is not async yet. However, if sync_execution |
488 | is not set, we know it will become async prior to resume. */ | |
489 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
490 | return; |
491 | ||
492 | /* If GDB is resuming the inferior in the foreground, install | |
493 | inferior's terminal modes. */ | |
d2f640d4 | 494 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 495 | } |
136d6dae | 496 | |
c906108c | 497 | static void |
fba45db2 | 498 | tcomplain (void) |
c906108c | 499 | { |
8a3fe4f8 | 500 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
501 | current_target.to_shortname); |
502 | } | |
503 | ||
504 | void | |
fba45db2 | 505 | noprocess (void) |
c906108c | 506 | { |
8a3fe4f8 | 507 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
508 | } |
509 | ||
c906108c | 510 | static void |
0a4f40a2 | 511 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 512 | { |
a3f17187 | 513 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
514 | } |
515 | ||
0ef643c8 JB |
516 | /* A default implementation for the to_get_ada_task_ptid target method. |
517 | ||
518 | This function builds the PTID by using both LWP and TID as part of | |
519 | the PTID lwp and tid elements. The pid used is the pid of the | |
520 | inferior_ptid. */ | |
521 | ||
2c0b251b | 522 | static ptid_t |
1e6b91a4 | 523 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
524 | { |
525 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
526 | } | |
527 | ||
32231432 | 528 | static enum exec_direction_kind |
4c612759 | 529 | default_execution_direction (struct target_ops *self) |
32231432 PA |
530 | { |
531 | if (!target_can_execute_reverse) | |
532 | return EXEC_FORWARD; | |
533 | else if (!target_can_async_p ()) | |
534 | return EXEC_FORWARD; | |
535 | else | |
536 | gdb_assert_not_reached ("\ | |
537 | to_execution_direction must be implemented for reverse async"); | |
538 | } | |
539 | ||
7998dfc3 AC |
540 | /* Go through the target stack from top to bottom, copying over zero |
541 | entries in current_target, then filling in still empty entries. In | |
542 | effect, we are doing class inheritance through the pushed target | |
543 | vectors. | |
544 | ||
545 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
546 | is currently implemented, is that it discards any knowledge of | |
547 | which target an inherited method originally belonged to. | |
548 | Consequently, new new target methods should instead explicitly and | |
549 | locally search the target stack for the target that can handle the | |
550 | request. */ | |
c906108c SS |
551 | |
552 | static void | |
7998dfc3 | 553 | update_current_target (void) |
c906108c | 554 | { |
7998dfc3 AC |
555 | struct target_ops *t; |
556 | ||
08d8bcd7 | 557 | /* First, reset current's contents. */ |
7998dfc3 AC |
558 | memset (¤t_target, 0, sizeof (current_target)); |
559 | ||
1101cb7b TT |
560 | /* Install the delegators. */ |
561 | install_delegators (¤t_target); | |
562 | ||
be4ddd36 TT |
563 | current_target.to_stratum = target_stack->to_stratum; |
564 | ||
7998dfc3 AC |
565 | #define INHERIT(FIELD, TARGET) \ |
566 | if (!current_target.FIELD) \ | |
567 | current_target.FIELD = (TARGET)->FIELD | |
568 | ||
be4ddd36 TT |
569 | /* Do not add any new INHERITs here. Instead, use the delegation |
570 | mechanism provided by make-target-delegates. */ | |
7998dfc3 AC |
571 | for (t = target_stack; t; t = t->beneath) |
572 | { | |
573 | INHERIT (to_shortname, t); | |
574 | INHERIT (to_longname, t); | |
dc177b7a | 575 | INHERIT (to_attach_no_wait, t); |
74174d2e | 576 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 577 | INHERIT (to_have_continuable_watchpoint, t); |
7998dfc3 | 578 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
579 | } |
580 | #undef INHERIT | |
581 | ||
7998dfc3 AC |
582 | /* Finally, position the target-stack beneath the squashed |
583 | "current_target". That way code looking for a non-inherited | |
584 | target method can quickly and simply find it. */ | |
585 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
586 | |
587 | if (targetdebug) | |
588 | setup_target_debug (); | |
c906108c SS |
589 | } |
590 | ||
591 | /* Push a new target type into the stack of the existing target accessors, | |
592 | possibly superseding some of the existing accessors. | |
593 | ||
c906108c SS |
594 | Rather than allow an empty stack, we always have the dummy target at |
595 | the bottom stratum, so we can call the function vectors without | |
596 | checking them. */ | |
597 | ||
b26a4dcb | 598 | void |
fba45db2 | 599 | push_target (struct target_ops *t) |
c906108c | 600 | { |
258b763a | 601 | struct target_ops **cur; |
c906108c SS |
602 | |
603 | /* Check magic number. If wrong, it probably means someone changed | |
604 | the struct definition, but not all the places that initialize one. */ | |
605 | if (t->to_magic != OPS_MAGIC) | |
606 | { | |
c5aa993b JM |
607 | fprintf_unfiltered (gdb_stderr, |
608 | "Magic number of %s target struct wrong\n", | |
609 | t->to_shortname); | |
3e43a32a MS |
610 | internal_error (__FILE__, __LINE__, |
611 | _("failed internal consistency check")); | |
c906108c SS |
612 | } |
613 | ||
258b763a AC |
614 | /* Find the proper stratum to install this target in. */ |
615 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 616 | { |
258b763a | 617 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
618 | break; |
619 | } | |
620 | ||
258b763a | 621 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 622 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
623 | targets to CUR, and not just those at this stratum level. */ |
624 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
625 | { | |
626 | /* There's already something at this stratum level. Close it, | |
627 | and un-hook it from the stack. */ | |
628 | struct target_ops *tmp = (*cur); | |
5d502164 | 629 | |
258b763a AC |
630 | (*cur) = (*cur)->beneath; |
631 | tmp->beneath = NULL; | |
460014f5 | 632 | target_close (tmp); |
258b763a | 633 | } |
c906108c SS |
634 | |
635 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
636 | t->beneath = (*cur); |
637 | (*cur) = t; | |
c906108c SS |
638 | |
639 | update_current_target (); | |
c906108c SS |
640 | } |
641 | ||
2bc416ba | 642 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
643 | Return how many times it was removed (0 or 1). */ |
644 | ||
645 | int | |
fba45db2 | 646 | unpush_target (struct target_ops *t) |
c906108c | 647 | { |
258b763a AC |
648 | struct target_ops **cur; |
649 | struct target_ops *tmp; | |
c906108c | 650 | |
c8d104ad PA |
651 | if (t->to_stratum == dummy_stratum) |
652 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 653 | _("Attempt to unpush the dummy target")); |
c8d104ad | 654 | |
c906108c | 655 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 656 | can only occur once in the target stack. */ |
c906108c | 657 | |
258b763a AC |
658 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
659 | { | |
660 | if ((*cur) == t) | |
661 | break; | |
662 | } | |
c906108c | 663 | |
305436e0 PA |
664 | /* If we don't find target_ops, quit. Only open targets should be |
665 | closed. */ | |
258b763a | 666 | if ((*cur) == NULL) |
305436e0 | 667 | return 0; |
5269965e | 668 | |
c378eb4e | 669 | /* Unchain the target. */ |
258b763a AC |
670 | tmp = (*cur); |
671 | (*cur) = (*cur)->beneath; | |
672 | tmp->beneath = NULL; | |
c906108c SS |
673 | |
674 | update_current_target (); | |
c906108c | 675 | |
305436e0 PA |
676 | /* Finally close the target. Note we do this after unchaining, so |
677 | any target method calls from within the target_close | |
678 | implementation don't end up in T anymore. */ | |
460014f5 | 679 | target_close (t); |
305436e0 | 680 | |
c906108c SS |
681 | return 1; |
682 | } | |
683 | ||
aa76d38d | 684 | void |
460014f5 | 685 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 686 | { |
87ab71f0 | 687 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 688 | { |
aa76d38d PA |
689 | if (!unpush_target (target_stack)) |
690 | { | |
691 | fprintf_unfiltered (gdb_stderr, | |
692 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 693 | target_stack->to_shortname); |
aa76d38d PA |
694 | internal_error (__FILE__, __LINE__, |
695 | _("failed internal consistency check")); | |
696 | break; | |
697 | } | |
698 | } | |
699 | } | |
700 | ||
87ab71f0 | 701 | void |
460014f5 | 702 | pop_all_targets (void) |
87ab71f0 | 703 | { |
460014f5 | 704 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
705 | } |
706 | ||
c0edd9ed JK |
707 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
708 | ||
709 | int | |
710 | target_is_pushed (struct target_ops *t) | |
711 | { | |
712 | struct target_ops **cur; | |
713 | ||
714 | /* Check magic number. If wrong, it probably means someone changed | |
715 | the struct definition, but not all the places that initialize one. */ | |
716 | if (t->to_magic != OPS_MAGIC) | |
717 | { | |
718 | fprintf_unfiltered (gdb_stderr, | |
719 | "Magic number of %s target struct wrong\n", | |
720 | t->to_shortname); | |
3e43a32a MS |
721 | internal_error (__FILE__, __LINE__, |
722 | _("failed internal consistency check")); | |
c0edd9ed JK |
723 | } |
724 | ||
725 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
726 | if (*cur == t) | |
727 | return 1; | |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
72f5cf0e | 732 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
733 | current thread's thread-local storage with offset OFFSET. */ |
734 | CORE_ADDR | |
735 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
736 | { | |
737 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
738 | struct target_ops *target; |
739 | ||
740 | for (target = current_target.beneath; | |
741 | target != NULL; | |
742 | target = target->beneath) | |
743 | { | |
744 | if (target->to_get_thread_local_address != NULL) | |
745 | break; | |
746 | } | |
9e35dae4 | 747 | |
117de6a9 | 748 | if (target != NULL |
f5656ead | 749 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
750 | { |
751 | ptid_t ptid = inferior_ptid; | |
752 | volatile struct gdb_exception ex; | |
753 | ||
754 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
755 | { | |
756 | CORE_ADDR lm_addr; | |
757 | ||
758 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 759 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 | 760 | objfile); |
9e35dae4 | 761 | |
3e43a32a MS |
762 | addr = target->to_get_thread_local_address (target, ptid, |
763 | lm_addr, offset); | |
9e35dae4 DJ |
764 | } |
765 | /* If an error occurred, print TLS related messages here. Otherwise, | |
766 | throw the error to some higher catcher. */ | |
767 | if (ex.reason < 0) | |
768 | { | |
769 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
770 | ||
771 | switch (ex.error) | |
772 | { | |
773 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
774 | error (_("Cannot find thread-local variables " |
775 | "in this thread library.")); | |
9e35dae4 DJ |
776 | break; |
777 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
778 | if (objfile_is_library) | |
779 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 780 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
781 | else |
782 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 783 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
784 | break; |
785 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
786 | if (objfile_is_library) | |
787 | error (_("The inferior has not yet allocated storage for" | |
788 | " thread-local variables in\n" | |
789 | "the shared library `%s'\n" | |
790 | "for %s"), | |
4262abfb | 791 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
792 | else |
793 | error (_("The inferior has not yet allocated storage for" | |
794 | " thread-local variables in\n" | |
795 | "the executable `%s'\n" | |
796 | "for %s"), | |
4262abfb | 797 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
798 | break; |
799 | case TLS_GENERIC_ERROR: | |
800 | if (objfile_is_library) | |
801 | error (_("Cannot find thread-local storage for %s, " | |
802 | "shared library %s:\n%s"), | |
803 | target_pid_to_str (ptid), | |
4262abfb | 804 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
805 | else |
806 | error (_("Cannot find thread-local storage for %s, " | |
807 | "executable file %s:\n%s"), | |
808 | target_pid_to_str (ptid), | |
4262abfb | 809 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
810 | break; |
811 | default: | |
812 | throw_exception (ex); | |
813 | break; | |
814 | } | |
815 | } | |
816 | } | |
817 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
818 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
819 | else | |
820 | error (_("Cannot find thread-local variables on this target")); | |
821 | ||
822 | return addr; | |
823 | } | |
824 | ||
6be7b56e | 825 | const char * |
01cb8804 | 826 | target_xfer_status_to_string (enum target_xfer_status status) |
6be7b56e PA |
827 | { |
828 | #define CASE(X) case X: return #X | |
01cb8804 | 829 | switch (status) |
6be7b56e PA |
830 | { |
831 | CASE(TARGET_XFER_E_IO); | |
bc113b4e | 832 | CASE(TARGET_XFER_UNAVAILABLE); |
6be7b56e PA |
833 | default: |
834 | return "<unknown>"; | |
835 | } | |
836 | #undef CASE | |
837 | }; | |
838 | ||
839 | ||
c906108c SS |
840 | #undef MIN |
841 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
842 | ||
843 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
844 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
845 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
846 | is responsible for freeing it. Return the number of bytes successfully | |
847 | read. */ | |
848 | ||
849 | int | |
fba45db2 | 850 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 851 | { |
c2e8b827 | 852 | int tlen, offset, i; |
1b0ba102 | 853 | gdb_byte buf[4]; |
c906108c SS |
854 | int errcode = 0; |
855 | char *buffer; | |
856 | int buffer_allocated; | |
857 | char *bufptr; | |
858 | unsigned int nbytes_read = 0; | |
859 | ||
6217bf3e MS |
860 | gdb_assert (string); |
861 | ||
c906108c SS |
862 | /* Small for testing. */ |
863 | buffer_allocated = 4; | |
864 | buffer = xmalloc (buffer_allocated); | |
865 | bufptr = buffer; | |
866 | ||
c906108c SS |
867 | while (len > 0) |
868 | { | |
869 | tlen = MIN (len, 4 - (memaddr & 3)); | |
870 | offset = memaddr & 3; | |
871 | ||
1b0ba102 | 872 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
873 | if (errcode != 0) |
874 | { | |
875 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 876 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
877 | a single byte. */ |
878 | tlen = 1; | |
879 | offset = 0; | |
b8eb5af0 | 880 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
881 | if (errcode != 0) |
882 | goto done; | |
883 | } | |
884 | ||
885 | if (bufptr - buffer + tlen > buffer_allocated) | |
886 | { | |
887 | unsigned int bytes; | |
5d502164 | 888 | |
c906108c SS |
889 | bytes = bufptr - buffer; |
890 | buffer_allocated *= 2; | |
891 | buffer = xrealloc (buffer, buffer_allocated); | |
892 | bufptr = buffer + bytes; | |
893 | } | |
894 | ||
895 | for (i = 0; i < tlen; i++) | |
896 | { | |
897 | *bufptr++ = buf[i + offset]; | |
898 | if (buf[i + offset] == '\000') | |
899 | { | |
900 | nbytes_read += i + 1; | |
901 | goto done; | |
902 | } | |
903 | } | |
904 | ||
905 | memaddr += tlen; | |
906 | len -= tlen; | |
907 | nbytes_read += tlen; | |
908 | } | |
c5aa993b | 909 | done: |
6217bf3e | 910 | *string = buffer; |
c906108c SS |
911 | if (errnop != NULL) |
912 | *errnop = errcode; | |
c906108c SS |
913 | return nbytes_read; |
914 | } | |
915 | ||
07b82ea5 PA |
916 | struct target_section_table * |
917 | target_get_section_table (struct target_ops *target) | |
918 | { | |
07b82ea5 PA |
919 | if (targetdebug) |
920 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
921 | ||
7e35c012 | 922 | return (*target->to_get_section_table) (target); |
07b82ea5 PA |
923 | } |
924 | ||
8db32d44 | 925 | /* Find a section containing ADDR. */ |
07b82ea5 | 926 | |
0542c86d | 927 | struct target_section * |
8db32d44 AC |
928 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
929 | { | |
07b82ea5 | 930 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 931 | struct target_section *secp; |
07b82ea5 PA |
932 | |
933 | if (table == NULL) | |
934 | return NULL; | |
935 | ||
936 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
937 | { |
938 | if (addr >= secp->addr && addr < secp->endaddr) | |
939 | return secp; | |
940 | } | |
941 | return NULL; | |
942 | } | |
943 | ||
9f713294 YQ |
944 | /* Read memory from more than one valid target. A core file, for |
945 | instance, could have some of memory but delegate other bits to | |
946 | the target below it. So, we must manually try all targets. */ | |
947 | ||
9b409511 | 948 | static enum target_xfer_status |
17fde6d0 | 949 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
950 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
951 | ULONGEST *xfered_len) | |
9f713294 | 952 | { |
9b409511 | 953 | enum target_xfer_status res; |
9f713294 YQ |
954 | |
955 | do | |
956 | { | |
957 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
958 | readbuf, writebuf, memaddr, len, |
959 | xfered_len); | |
960 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
961 | break; |
962 | ||
633785ff | 963 | /* Stop if the target reports that the memory is not available. */ |
bc113b4e | 964 | if (res == TARGET_XFER_UNAVAILABLE) |
633785ff MM |
965 | break; |
966 | ||
9f713294 YQ |
967 | /* We want to continue past core files to executables, but not |
968 | past a running target's memory. */ | |
969 | if (ops->to_has_all_memory (ops)) | |
970 | break; | |
971 | ||
972 | ops = ops->beneath; | |
973 | } | |
974 | while (ops != NULL); | |
975 | ||
0f26cec1 PA |
976 | /* The cache works at the raw memory level. Make sure the cache |
977 | gets updated with raw contents no matter what kind of memory | |
978 | object was originally being written. Note we do write-through | |
979 | first, so that if it fails, we don't write to the cache contents | |
980 | that never made it to the target. */ | |
981 | if (writebuf != NULL | |
982 | && !ptid_equal (inferior_ptid, null_ptid) | |
983 | && target_dcache_init_p () | |
984 | && (stack_cache_enabled_p () || code_cache_enabled_p ())) | |
985 | { | |
986 | DCACHE *dcache = target_dcache_get (); | |
987 | ||
988 | /* Note that writing to an area of memory which wasn't present | |
989 | in the cache doesn't cause it to be loaded in. */ | |
990 | dcache_update (dcache, res, memaddr, writebuf, *xfered_len); | |
991 | } | |
992 | ||
9f713294 YQ |
993 | return res; |
994 | } | |
995 | ||
7f79c47e DE |
996 | /* Perform a partial memory transfer. |
997 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 998 | |
9b409511 | 999 | static enum target_xfer_status |
f0ba3972 | 1000 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1001 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1002 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1003 | { |
9b409511 | 1004 | enum target_xfer_status res; |
cf7a04e8 DJ |
1005 | int reg_len; |
1006 | struct mem_region *region; | |
4e5d721f | 1007 | struct inferior *inf; |
cf7a04e8 | 1008 | |
07b82ea5 PA |
1009 | /* For accesses to unmapped overlay sections, read directly from |
1010 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1011 | if (readbuf != NULL && overlay_debugging) | |
1012 | { | |
1013 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1014 | |
07b82ea5 PA |
1015 | if (pc_in_unmapped_range (memaddr, section)) |
1016 | { | |
1017 | struct target_section_table *table | |
1018 | = target_get_section_table (ops); | |
1019 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1020 | |
07b82ea5 PA |
1021 | memaddr = overlay_mapped_address (memaddr, section); |
1022 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1023 | memaddr, len, xfered_len, |
07b82ea5 PA |
1024 | table->sections, |
1025 | table->sections_end, | |
1026 | section_name); | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1031 | if (readbuf != NULL && trust_readonly) |
1032 | { | |
0542c86d | 1033 | struct target_section *secp; |
07b82ea5 | 1034 | struct target_section_table *table; |
cf7a04e8 DJ |
1035 | |
1036 | secp = target_section_by_addr (ops, memaddr); | |
1037 | if (secp != NULL | |
2b2848e2 DE |
1038 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1039 | secp->the_bfd_section) | |
cf7a04e8 | 1040 | & SEC_READONLY)) |
07b82ea5 PA |
1041 | { |
1042 | table = target_get_section_table (ops); | |
1043 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1044 | memaddr, len, xfered_len, |
07b82ea5 PA |
1045 | table->sections, |
1046 | table->sections_end, | |
1047 | NULL); | |
1048 | } | |
98646950 UW |
1049 | } |
1050 | ||
cf7a04e8 DJ |
1051 | /* Try GDB's internal data cache. */ |
1052 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1053 | /* region->hi == 0 means there's no upper bound. */ |
1054 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1055 | reg_len = len; |
1056 | else | |
1057 | reg_len = region->hi - memaddr; | |
1058 | ||
1059 | switch (region->attrib.mode) | |
1060 | { | |
1061 | case MEM_RO: | |
1062 | if (writebuf != NULL) | |
2ed4b548 | 1063 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1064 | break; |
1065 | ||
1066 | case MEM_WO: | |
1067 | if (readbuf != NULL) | |
2ed4b548 | 1068 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1069 | break; |
a76d924d DJ |
1070 | |
1071 | case MEM_FLASH: | |
1072 | /* We only support writing to flash during "load" for now. */ | |
1073 | if (writebuf != NULL) | |
1074 | error (_("Writing to flash memory forbidden in this context")); | |
1075 | break; | |
4b5752d0 VP |
1076 | |
1077 | case MEM_NONE: | |
2ed4b548 | 1078 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1079 | } |
1080 | ||
6c95b8df PA |
1081 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1082 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1083 | else | |
1084 | inf = NULL; | |
4e5d721f DE |
1085 | |
1086 | if (inf != NULL | |
0f26cec1 | 1087 | && readbuf != NULL |
2f4d8875 PA |
1088 | /* The dcache reads whole cache lines; that doesn't play well |
1089 | with reading from a trace buffer, because reading outside of | |
1090 | the collected memory range fails. */ | |
1091 | && get_traceframe_number () == -1 | |
4e5d721f | 1092 | && (region->attrib.cache |
29453a14 YQ |
1093 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1094 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1095 | { |
2a2f9fe4 YQ |
1096 | DCACHE *dcache = target_dcache_get_or_init (); |
1097 | ||
0f26cec1 PA |
1098 | return dcache_read_memory_partial (ops, dcache, memaddr, readbuf, |
1099 | reg_len, xfered_len); | |
cf7a04e8 DJ |
1100 | } |
1101 | ||
1102 | /* If none of those methods found the memory we wanted, fall back | |
1103 | to a target partial transfer. Normally a single call to | |
1104 | to_xfer_partial is enough; if it doesn't recognize an object | |
1105 | it will call the to_xfer_partial of the next target down. | |
1106 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1107 | object which can be read from more than one valid target. |
1108 | A core file, for instance, could have some of memory but | |
1109 | delegate other bits to the target below it. So, we must | |
1110 | manually try all targets. */ | |
1111 | ||
1112 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1113 | xfered_len); | |
cf7a04e8 DJ |
1114 | |
1115 | /* If we still haven't got anything, return the last error. We | |
1116 | give up. */ | |
1117 | return res; | |
0779438d AC |
1118 | } |
1119 | ||
f0ba3972 PA |
1120 | /* Perform a partial memory transfer. For docs see target.h, |
1121 | to_xfer_partial. */ | |
1122 | ||
9b409511 | 1123 | static enum target_xfer_status |
f0ba3972 | 1124 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1125 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1126 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1127 | { |
9b409511 | 1128 | enum target_xfer_status res; |
f0ba3972 PA |
1129 | |
1130 | /* Zero length requests are ok and require no work. */ | |
1131 | if (len == 0) | |
9b409511 | 1132 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1133 | |
1134 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1135 | breakpoint insns, thus hiding out from higher layers whether | |
1136 | there are software breakpoints inserted in the code stream. */ | |
1137 | if (readbuf != NULL) | |
1138 | { | |
9b409511 YQ |
1139 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1140 | xfered_len); | |
f0ba3972 | 1141 | |
9b409511 | 1142 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
c63528fc | 1143 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, *xfered_len); |
f0ba3972 PA |
1144 | } |
1145 | else | |
1146 | { | |
1147 | void *buf; | |
1148 | struct cleanup *old_chain; | |
1149 | ||
67c059c2 AB |
1150 | /* A large write request is likely to be partially satisfied |
1151 | by memory_xfer_partial_1. We will continually malloc | |
1152 | and free a copy of the entire write request for breakpoint | |
1153 | shadow handling even though we only end up writing a small | |
1154 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1155 | len = min (4096, len); | |
1156 | ||
f0ba3972 PA |
1157 | buf = xmalloc (len); |
1158 | old_chain = make_cleanup (xfree, buf); | |
1159 | memcpy (buf, writebuf, len); | |
1160 | ||
1161 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1162 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1163 | xfered_len); | |
f0ba3972 PA |
1164 | |
1165 | do_cleanups (old_chain); | |
1166 | } | |
1167 | ||
1168 | return res; | |
1169 | } | |
1170 | ||
8defab1a DJ |
1171 | static void |
1172 | restore_show_memory_breakpoints (void *arg) | |
1173 | { | |
1174 | show_memory_breakpoints = (uintptr_t) arg; | |
1175 | } | |
1176 | ||
1177 | struct cleanup * | |
1178 | make_show_memory_breakpoints_cleanup (int show) | |
1179 | { | |
1180 | int current = show_memory_breakpoints; | |
8defab1a | 1181 | |
5d502164 | 1182 | show_memory_breakpoints = show; |
8defab1a DJ |
1183 | return make_cleanup (restore_show_memory_breakpoints, |
1184 | (void *) (uintptr_t) current); | |
1185 | } | |
1186 | ||
7f79c47e DE |
1187 | /* For docs see target.h, to_xfer_partial. */ |
1188 | ||
9b409511 | 1189 | enum target_xfer_status |
27394598 AC |
1190 | target_xfer_partial (struct target_ops *ops, |
1191 | enum target_object object, const char *annex, | |
4ac248ca | 1192 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1193 | ULONGEST offset, ULONGEST len, |
1194 | ULONGEST *xfered_len) | |
27394598 | 1195 | { |
9b409511 | 1196 | enum target_xfer_status retval; |
27394598 AC |
1197 | |
1198 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1199 | |
ce6d0892 YQ |
1200 | /* Transfer is done when LEN is zero. */ |
1201 | if (len == 0) | |
9b409511 | 1202 | return TARGET_XFER_EOF; |
ce6d0892 | 1203 | |
d914c394 SS |
1204 | if (writebuf && !may_write_memory) |
1205 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1206 | core_addr_to_string_nz (offset), plongest (len)); | |
1207 | ||
9b409511 YQ |
1208 | *xfered_len = 0; |
1209 | ||
cf7a04e8 DJ |
1210 | /* If this is a memory transfer, let the memory-specific code |
1211 | have a look at it instead. Memory transfers are more | |
1212 | complicated. */ | |
29453a14 YQ |
1213 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1214 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1215 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1216 | writebuf, offset, len, xfered_len); |
9f713294 | 1217 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1218 | { |
9f713294 | 1219 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1220 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1221 | xfered_len); | |
cf7a04e8 | 1222 | } |
9f713294 YQ |
1223 | else |
1224 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1225 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1226 | |
27394598 AC |
1227 | if (targetdebug) |
1228 | { | |
1229 | const unsigned char *myaddr = NULL; | |
1230 | ||
1231 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1232 | "%s:target_xfer_partial " |
9b409511 | 1233 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1234 | ops->to_shortname, |
1235 | (int) object, | |
1236 | (annex ? annex : "(null)"), | |
53b71562 JB |
1237 | host_address_to_string (readbuf), |
1238 | host_address_to_string (writebuf), | |
0b1553bc | 1239 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1240 | pulongest (len), retval, |
1241 | pulongest (*xfered_len)); | |
27394598 AC |
1242 | |
1243 | if (readbuf) | |
1244 | myaddr = readbuf; | |
1245 | if (writebuf) | |
1246 | myaddr = writebuf; | |
9b409511 | 1247 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1248 | { |
1249 | int i; | |
2bc416ba | 1250 | |
27394598 | 1251 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1252 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1253 | { |
53b71562 | 1254 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1255 | { |
1256 | if (targetdebug < 2 && i > 0) | |
1257 | { | |
1258 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1259 | break; | |
1260 | } | |
1261 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1262 | } | |
2bc416ba | 1263 | |
27394598 AC |
1264 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1265 | } | |
1266 | } | |
2bc416ba | 1267 | |
27394598 AC |
1268 | fputc_unfiltered ('\n', gdb_stdlog); |
1269 | } | |
9b409511 YQ |
1270 | |
1271 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1272 | properly. Do assertion after printing debug messages, so that we | |
1273 | can find more clues on assertion failure from debugging messages. */ | |
bc113b4e | 1274 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_UNAVAILABLE) |
9b409511 YQ |
1275 | gdb_assert (*xfered_len > 0); |
1276 | ||
27394598 AC |
1277 | return retval; |
1278 | } | |
1279 | ||
578d3588 PA |
1280 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1281 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1282 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1283 | |
1284 | If an error occurs, no guarantee is made about the contents of the data at | |
1285 | MYADDR. In particular, the caller should not depend upon partial reads | |
1286 | filling the buffer with good data. There is no way for the caller to know | |
1287 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1288 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1289 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1290 | |
1291 | int | |
1b162304 | 1292 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1293 | { |
c35b1492 PA |
1294 | /* Dispatch to the topmost target, not the flattened current_target. |
1295 | Memory accesses check target->to_has_(all_)memory, and the | |
1296 | flattened target doesn't inherit those. */ | |
1297 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1298 | myaddr, memaddr, len) == len) |
1299 | return 0; | |
0779438d | 1300 | else |
578d3588 | 1301 | return TARGET_XFER_E_IO; |
c906108c SS |
1302 | } |
1303 | ||
aee4bf85 PA |
1304 | /* Like target_read_memory, but specify explicitly that this is a read |
1305 | from the target's raw memory. That is, this read bypasses the | |
1306 | dcache, breakpoint shadowing, etc. */ | |
1307 | ||
1308 | int | |
1309 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1310 | { | |
1311 | /* See comment in target_read_memory about why the request starts at | |
1312 | current_target.beneath. */ | |
1313 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1314 | myaddr, memaddr, len) == len) | |
1315 | return 0; | |
1316 | else | |
1317 | return TARGET_XFER_E_IO; | |
1318 | } | |
1319 | ||
4e5d721f DE |
1320 | /* Like target_read_memory, but specify explicitly that this is a read from |
1321 | the target's stack. This may trigger different cache behavior. */ | |
1322 | ||
1323 | int | |
45aa4659 | 1324 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1325 | { |
aee4bf85 PA |
1326 | /* See comment in target_read_memory about why the request starts at |
1327 | current_target.beneath. */ | |
4e5d721f DE |
1328 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1329 | myaddr, memaddr, len) == len) | |
1330 | return 0; | |
1331 | else | |
578d3588 | 1332 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1333 | } |
1334 | ||
29453a14 YQ |
1335 | /* Like target_read_memory, but specify explicitly that this is a read from |
1336 | the target's code. This may trigger different cache behavior. */ | |
1337 | ||
1338 | int | |
1339 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1340 | { | |
aee4bf85 PA |
1341 | /* See comment in target_read_memory about why the request starts at |
1342 | current_target.beneath. */ | |
29453a14 YQ |
1343 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1344 | myaddr, memaddr, len) == len) | |
1345 | return 0; | |
1346 | else | |
1347 | return TARGET_XFER_E_IO; | |
1348 | } | |
1349 | ||
7f79c47e | 1350 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1351 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1352 | error occurs. If an error occurs, no guarantee is made about how |
1353 | much data got written. Callers that can deal with partial writes | |
1354 | should call target_write. */ | |
7f79c47e | 1355 | |
c906108c | 1356 | int |
45aa4659 | 1357 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1358 | { |
aee4bf85 PA |
1359 | /* See comment in target_read_memory about why the request starts at |
1360 | current_target.beneath. */ | |
c35b1492 | 1361 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1362 | myaddr, memaddr, len) == len) |
1363 | return 0; | |
0779438d | 1364 | else |
578d3588 | 1365 | return TARGET_XFER_E_IO; |
c906108c | 1366 | } |
c5aa993b | 1367 | |
f0ba3972 | 1368 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1369 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1370 | if any error occurs. If an error occurs, no guarantee is made |
1371 | about how much data got written. Callers that can deal with | |
1372 | partial writes should call target_write. */ | |
f0ba3972 PA |
1373 | |
1374 | int | |
45aa4659 | 1375 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1376 | { |
aee4bf85 PA |
1377 | /* See comment in target_read_memory about why the request starts at |
1378 | current_target.beneath. */ | |
f0ba3972 PA |
1379 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1380 | myaddr, memaddr, len) == len) | |
1381 | return 0; | |
1382 | else | |
578d3588 | 1383 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1384 | } |
1385 | ||
fd79ecee DJ |
1386 | /* Fetch the target's memory map. */ |
1387 | ||
1388 | VEC(mem_region_s) * | |
1389 | target_memory_map (void) | |
1390 | { | |
1391 | VEC(mem_region_s) *result; | |
1392 | struct mem_region *last_one, *this_one; | |
1393 | int ix; | |
1394 | struct target_ops *t; | |
1395 | ||
1396 | if (targetdebug) | |
1397 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1398 | ||
6b2c5a57 | 1399 | result = current_target.to_memory_map (¤t_target); |
fd79ecee DJ |
1400 | if (result == NULL) |
1401 | return NULL; | |
1402 | ||
1403 | qsort (VEC_address (mem_region_s, result), | |
1404 | VEC_length (mem_region_s, result), | |
1405 | sizeof (struct mem_region), mem_region_cmp); | |
1406 | ||
1407 | /* Check that regions do not overlap. Simultaneously assign | |
1408 | a numbering for the "mem" commands to use to refer to | |
1409 | each region. */ | |
1410 | last_one = NULL; | |
1411 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1412 | { | |
1413 | this_one->number = ix; | |
1414 | ||
1415 | if (last_one && last_one->hi > this_one->lo) | |
1416 | { | |
1417 | warning (_("Overlapping regions in memory map: ignoring")); | |
1418 | VEC_free (mem_region_s, result); | |
1419 | return NULL; | |
1420 | } | |
1421 | last_one = this_one; | |
1422 | } | |
1423 | ||
1424 | return result; | |
1425 | } | |
1426 | ||
a76d924d DJ |
1427 | void |
1428 | target_flash_erase (ULONGEST address, LONGEST length) | |
1429 | { | |
e8a6c6ac TT |
1430 | if (targetdebug) |
1431 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1432 | hex_string (address), phex (length, 0)); | |
1433 | current_target.to_flash_erase (¤t_target, address, length); | |
a76d924d DJ |
1434 | } |
1435 | ||
1436 | void | |
1437 | target_flash_done (void) | |
1438 | { | |
f6fb2925 TT |
1439 | if (targetdebug) |
1440 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1441 | current_target.to_flash_done (¤t_target); | |
a76d924d DJ |
1442 | } |
1443 | ||
920d2a44 AC |
1444 | static void |
1445 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1446 | struct cmd_list_element *c, const char *value) | |
1447 | { | |
3e43a32a MS |
1448 | fprintf_filtered (file, |
1449 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1450 | value); |
1451 | } | |
3a11626d | 1452 | |
7f79c47e | 1453 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1454 | |
9b409511 | 1455 | static enum target_xfer_status |
1e3ff5ad AC |
1456 | target_read_partial (struct target_ops *ops, |
1457 | enum target_object object, | |
1b0ba102 | 1458 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1459 | ULONGEST offset, ULONGEST len, |
1460 | ULONGEST *xfered_len) | |
1e3ff5ad | 1461 | { |
9b409511 YQ |
1462 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1463 | xfered_len); | |
1e3ff5ad AC |
1464 | } |
1465 | ||
8a55ffb0 | 1466 | static enum target_xfer_status |
1e3ff5ad AC |
1467 | target_write_partial (struct target_ops *ops, |
1468 | enum target_object object, | |
1b0ba102 | 1469 | const char *annex, const gdb_byte *buf, |
9b409511 | 1470 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1471 | { |
9b409511 YQ |
1472 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1473 | xfered_len); | |
1e3ff5ad AC |
1474 | } |
1475 | ||
1476 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1477 | |
1478 | /* For docs on target_read see target.h. */ | |
1479 | ||
1e3ff5ad AC |
1480 | LONGEST |
1481 | target_read (struct target_ops *ops, | |
1482 | enum target_object object, | |
1b0ba102 | 1483 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1484 | ULONGEST offset, LONGEST len) |
1485 | { | |
1486 | LONGEST xfered = 0; | |
5d502164 | 1487 | |
1e3ff5ad AC |
1488 | while (xfered < len) |
1489 | { | |
9b409511 YQ |
1490 | ULONGEST xfered_len; |
1491 | enum target_xfer_status status; | |
1492 | ||
1493 | status = target_read_partial (ops, object, annex, | |
1494 | (gdb_byte *) buf + xfered, | |
1495 | offset + xfered, len - xfered, | |
1496 | &xfered_len); | |
5d502164 | 1497 | |
1e3ff5ad | 1498 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1499 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1500 | return xfered; |
9b409511 YQ |
1501 | else if (status == TARGET_XFER_OK) |
1502 | { | |
1503 | xfered += xfered_len; | |
1504 | QUIT; | |
1505 | } | |
1506 | else | |
0088c768 | 1507 | return -1; |
9b409511 | 1508 | |
1e3ff5ad AC |
1509 | } |
1510 | return len; | |
1511 | } | |
1512 | ||
f1a507a1 JB |
1513 | /* Assuming that the entire [begin, end) range of memory cannot be |
1514 | read, try to read whatever subrange is possible to read. | |
1515 | ||
1516 | The function returns, in RESULT, either zero or one memory block. | |
1517 | If there's a readable subrange at the beginning, it is completely | |
1518 | read and returned. Any further readable subrange will not be read. | |
1519 | Otherwise, if there's a readable subrange at the end, it will be | |
1520 | completely read and returned. Any readable subranges before it | |
1521 | (obviously, not starting at the beginning), will be ignored. In | |
1522 | other cases -- either no readable subrange, or readable subrange(s) | |
1523 | that is neither at the beginning, or end, nothing is returned. | |
1524 | ||
1525 | The purpose of this function is to handle a read across a boundary | |
1526 | of accessible memory in a case when memory map is not available. | |
1527 | The above restrictions are fine for this case, but will give | |
1528 | incorrect results if the memory is 'patchy'. However, supporting | |
1529 | 'patchy' memory would require trying to read every single byte, | |
1530 | and it seems unacceptable solution. Explicit memory map is | |
1531 | recommended for this case -- and target_read_memory_robust will | |
1532 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1533 | |
1534 | static void | |
3e43a32a MS |
1535 | read_whatever_is_readable (struct target_ops *ops, |
1536 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1537 | VEC(memory_read_result_s) **result) |
d5086790 | 1538 | { |
f1a507a1 | 1539 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1540 | ULONGEST current_begin = begin; |
1541 | ULONGEST current_end = end; | |
1542 | int forward; | |
1543 | memory_read_result_s r; | |
9b409511 | 1544 | ULONGEST xfered_len; |
8dedea02 VP |
1545 | |
1546 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1547 | if (end - begin <= 1) | |
13b3fd9b MS |
1548 | { |
1549 | xfree (buf); | |
1550 | return; | |
1551 | } | |
8dedea02 VP |
1552 | |
1553 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1554 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1555 | at the boundary of accessible region. */ |
1556 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 1557 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1558 | { |
1559 | forward = 1; | |
1560 | ++current_begin; | |
1561 | } | |
1562 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1563 | buf + (end-begin) - 1, end - 1, 1, |
1564 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
1565 | { |
1566 | forward = 0; | |
1567 | --current_end; | |
1568 | } | |
1569 | else | |
1570 | { | |
13b3fd9b | 1571 | xfree (buf); |
8dedea02 VP |
1572 | return; |
1573 | } | |
1574 | ||
1575 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1576 | found to be not readable as a whole. | |
1577 | ||
1578 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1579 | so there's no point trying further. */ | |
1580 | while (current_end - current_begin > 1) | |
1581 | { | |
1582 | ULONGEST first_half_begin, first_half_end; | |
1583 | ULONGEST second_half_begin, second_half_end; | |
1584 | LONGEST xfer; | |
8dedea02 | 1585 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 1586 | |
8dedea02 VP |
1587 | if (forward) |
1588 | { | |
1589 | first_half_begin = current_begin; | |
1590 | first_half_end = middle; | |
1591 | second_half_begin = middle; | |
1592 | second_half_end = current_end; | |
1593 | } | |
1594 | else | |
1595 | { | |
1596 | first_half_begin = middle; | |
1597 | first_half_end = current_end; | |
1598 | second_half_begin = current_begin; | |
1599 | second_half_end = middle; | |
1600 | } | |
1601 | ||
1602 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1603 | buf + (first_half_begin - begin), | |
1604 | first_half_begin, | |
1605 | first_half_end - first_half_begin); | |
1606 | ||
1607 | if (xfer == first_half_end - first_half_begin) | |
1608 | { | |
c378eb4e | 1609 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 1610 | other half. */ |
8dedea02 VP |
1611 | current_begin = second_half_begin; |
1612 | current_end = second_half_end; | |
1613 | } | |
1614 | else | |
1615 | { | |
c378eb4e MS |
1616 | /* This half is not readable. Because we've tried one byte, we |
1617 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
1618 | iteration to divide again and try to read. |
1619 | ||
1620 | We don't handle the other half, because this function only tries | |
1621 | to read a single readable subrange. */ | |
1622 | current_begin = first_half_begin; | |
1623 | current_end = first_half_end; | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | if (forward) | |
1628 | { | |
1629 | /* The [begin, current_begin) range has been read. */ | |
1630 | r.begin = begin; | |
1631 | r.end = current_begin; | |
1632 | r.data = buf; | |
1633 | } | |
1634 | else | |
1635 | { | |
1636 | /* The [current_end, end) range has been read. */ | |
1637 | LONGEST rlen = end - current_end; | |
f1a507a1 | 1638 | |
8dedea02 VP |
1639 | r.data = xmalloc (rlen); |
1640 | memcpy (r.data, buf + current_end - begin, rlen); | |
1641 | r.begin = current_end; | |
1642 | r.end = end; | |
1643 | xfree (buf); | |
1644 | } | |
1645 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
1646 | } | |
1647 | ||
1648 | void | |
1649 | free_memory_read_result_vector (void *x) | |
1650 | { | |
1651 | VEC(memory_read_result_s) *v = x; | |
1652 | memory_read_result_s *current; | |
1653 | int ix; | |
1654 | ||
1655 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
1656 | { | |
1657 | xfree (current->data); | |
1658 | } | |
1659 | VEC_free (memory_read_result_s, v); | |
1660 | } | |
1661 | ||
1662 | VEC(memory_read_result_s) * | |
1663 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
1664 | { | |
1665 | VEC(memory_read_result_s) *result = 0; | |
1666 | ||
1667 | LONGEST xfered = 0; | |
d5086790 VP |
1668 | while (xfered < len) |
1669 | { | |
8dedea02 VP |
1670 | struct mem_region *region = lookup_mem_region (offset + xfered); |
1671 | LONGEST rlen; | |
5d502164 | 1672 | |
8dedea02 VP |
1673 | /* If there is no explicit region, a fake one should be created. */ |
1674 | gdb_assert (region); | |
1675 | ||
1676 | if (region->hi == 0) | |
1677 | rlen = len - xfered; | |
1678 | else | |
1679 | rlen = region->hi - offset; | |
1680 | ||
1681 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 1682 | { |
c378eb4e | 1683 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
1684 | if the region is explicitly marked inaccessible, or |
1685 | 'inaccessible-by-default' is in effect. */ | |
1686 | xfered += rlen; | |
1687 | } | |
1688 | else | |
1689 | { | |
1690 | LONGEST to_read = min (len - xfered, rlen); | |
1691 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
1692 | ||
1693 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1694 | (gdb_byte *) buffer, | |
1695 | offset + xfered, to_read); | |
1696 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 1697 | if (xfer <= 0) |
d5086790 | 1698 | { |
c378eb4e | 1699 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
1700 | some subrange. */ |
1701 | xfree (buffer); | |
3e43a32a MS |
1702 | read_whatever_is_readable (ops, offset + xfered, |
1703 | offset + xfered + to_read, &result); | |
8dedea02 | 1704 | xfered += to_read; |
d5086790 | 1705 | } |
8dedea02 VP |
1706 | else |
1707 | { | |
1708 | struct memory_read_result r; | |
1709 | r.data = buffer; | |
1710 | r.begin = offset + xfered; | |
1711 | r.end = r.begin + xfer; | |
1712 | VEC_safe_push (memory_read_result_s, result, &r); | |
1713 | xfered += xfer; | |
1714 | } | |
1715 | QUIT; | |
d5086790 | 1716 | } |
d5086790 | 1717 | } |
8dedea02 | 1718 | return result; |
d5086790 VP |
1719 | } |
1720 | ||
8dedea02 | 1721 | |
cf7a04e8 DJ |
1722 | /* An alternative to target_write with progress callbacks. */ |
1723 | ||
1e3ff5ad | 1724 | LONGEST |
cf7a04e8 DJ |
1725 | target_write_with_progress (struct target_ops *ops, |
1726 | enum target_object object, | |
1727 | const char *annex, const gdb_byte *buf, | |
1728 | ULONGEST offset, LONGEST len, | |
1729 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
1730 | { |
1731 | LONGEST xfered = 0; | |
a76d924d DJ |
1732 | |
1733 | /* Give the progress callback a chance to set up. */ | |
1734 | if (progress) | |
1735 | (*progress) (0, baton); | |
1736 | ||
1e3ff5ad AC |
1737 | while (xfered < len) |
1738 | { | |
9b409511 YQ |
1739 | ULONGEST xfered_len; |
1740 | enum target_xfer_status status; | |
1741 | ||
1742 | status = target_write_partial (ops, object, annex, | |
1743 | (gdb_byte *) buf + xfered, | |
1744 | offset + xfered, len - xfered, | |
1745 | &xfered_len); | |
cf7a04e8 | 1746 | |
5c328c05 YQ |
1747 | if (status != TARGET_XFER_OK) |
1748 | return status == TARGET_XFER_EOF ? xfered : -1; | |
cf7a04e8 DJ |
1749 | |
1750 | if (progress) | |
9b409511 | 1751 | (*progress) (xfered_len, baton); |
cf7a04e8 | 1752 | |
9b409511 | 1753 | xfered += xfered_len; |
1e3ff5ad AC |
1754 | QUIT; |
1755 | } | |
1756 | return len; | |
1757 | } | |
1758 | ||
7f79c47e DE |
1759 | /* For docs on target_write see target.h. */ |
1760 | ||
cf7a04e8 DJ |
1761 | LONGEST |
1762 | target_write (struct target_ops *ops, | |
1763 | enum target_object object, | |
1764 | const char *annex, const gdb_byte *buf, | |
1765 | ULONGEST offset, LONGEST len) | |
1766 | { | |
1767 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1768 | NULL, NULL); | |
1769 | } | |
1770 | ||
159f81f3 DJ |
1771 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1772 | the size of the transferred data. PADDING additional bytes are | |
1773 | available in *BUF_P. This is a helper function for | |
1774 | target_read_alloc; see the declaration of that function for more | |
1775 | information. */ | |
13547ab6 | 1776 | |
159f81f3 DJ |
1777 | static LONGEST |
1778 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
1779 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
1780 | { |
1781 | size_t buf_alloc, buf_pos; | |
1782 | gdb_byte *buf; | |
13547ab6 DJ |
1783 | |
1784 | /* This function does not have a length parameter; it reads the | |
1785 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1786 | from one target and partly from another (in a different stratum, | |
1787 | e.g. a core file and an executable). Both reasons make it | |
1788 | unsuitable for reading memory. */ | |
1789 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1790 | ||
1791 | /* Start by reading up to 4K at a time. The target will throttle | |
1792 | this number down if necessary. */ | |
1793 | buf_alloc = 4096; | |
1794 | buf = xmalloc (buf_alloc); | |
1795 | buf_pos = 0; | |
1796 | while (1) | |
1797 | { | |
9b409511 YQ |
1798 | ULONGEST xfered_len; |
1799 | enum target_xfer_status status; | |
1800 | ||
1801 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
1802 | buf_pos, buf_alloc - buf_pos - padding, | |
1803 | &xfered_len); | |
1804 | ||
1805 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
1806 | { |
1807 | /* Read all there was. */ | |
1808 | if (buf_pos == 0) | |
1809 | xfree (buf); | |
1810 | else | |
1811 | *buf_p = buf; | |
1812 | return buf_pos; | |
1813 | } | |
9b409511 YQ |
1814 | else if (status != TARGET_XFER_OK) |
1815 | { | |
1816 | /* An error occurred. */ | |
1817 | xfree (buf); | |
1818 | return TARGET_XFER_E_IO; | |
1819 | } | |
13547ab6 | 1820 | |
9b409511 | 1821 | buf_pos += xfered_len; |
13547ab6 DJ |
1822 | |
1823 | /* If the buffer is filling up, expand it. */ | |
1824 | if (buf_alloc < buf_pos * 2) | |
1825 | { | |
1826 | buf_alloc *= 2; | |
1827 | buf = xrealloc (buf, buf_alloc); | |
1828 | } | |
1829 | ||
1830 | QUIT; | |
1831 | } | |
1832 | } | |
1833 | ||
159f81f3 DJ |
1834 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1835 | the size of the transferred data. See the declaration in "target.h" | |
1836 | function for more information about the return value. */ | |
1837 | ||
1838 | LONGEST | |
1839 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
1840 | const char *annex, gdb_byte **buf_p) | |
1841 | { | |
1842 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
1843 | } | |
1844 | ||
1845 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
1846 | returned as a string, allocated using xmalloc. If an error occurs | |
1847 | or the transfer is unsupported, NULL is returned. Empty objects | |
1848 | are returned as allocated but empty strings. A warning is issued | |
1849 | if the result contains any embedded NUL bytes. */ | |
1850 | ||
1851 | char * | |
1852 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
1853 | const char *annex) | |
1854 | { | |
39086a0e PA |
1855 | gdb_byte *buffer; |
1856 | char *bufstr; | |
7313baad | 1857 | LONGEST i, transferred; |
159f81f3 | 1858 | |
39086a0e PA |
1859 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
1860 | bufstr = (char *) buffer; | |
159f81f3 DJ |
1861 | |
1862 | if (transferred < 0) | |
1863 | return NULL; | |
1864 | ||
1865 | if (transferred == 0) | |
1866 | return xstrdup (""); | |
1867 | ||
39086a0e | 1868 | bufstr[transferred] = 0; |
7313baad UW |
1869 | |
1870 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
1871 | for (i = strlen (bufstr); i < transferred; i++) |
1872 | if (bufstr[i] != 0) | |
7313baad UW |
1873 | { |
1874 | warning (_("target object %d, annex %s, " | |
1875 | "contained unexpected null characters"), | |
1876 | (int) object, annex ? annex : "(none)"); | |
1877 | break; | |
1878 | } | |
159f81f3 | 1879 | |
39086a0e | 1880 | return bufstr; |
159f81f3 DJ |
1881 | } |
1882 | ||
b6591e8b AC |
1883 | /* Memory transfer methods. */ |
1884 | ||
1885 | void | |
1b0ba102 | 1886 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1887 | LONGEST len) |
1888 | { | |
07b82ea5 PA |
1889 | /* This method is used to read from an alternate, non-current |
1890 | target. This read must bypass the overlay support (as symbols | |
1891 | don't match this target), and GDB's internal cache (wrong cache | |
1892 | for this target). */ | |
1893 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 1894 | != len) |
578d3588 | 1895 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
1896 | } |
1897 | ||
1898 | ULONGEST | |
5d502164 MS |
1899 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
1900 | int len, enum bfd_endian byte_order) | |
b6591e8b | 1901 | { |
f6519ebc | 1902 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1903 | |
1904 | gdb_assert (len <= sizeof (buf)); | |
1905 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 1906 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
1907 | } |
1908 | ||
3db08215 MM |
1909 | /* See target.h. */ |
1910 | ||
d914c394 SS |
1911 | int |
1912 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
1913 | struct bp_target_info *bp_tgt) | |
1914 | { | |
1915 | if (!may_insert_breakpoints) | |
1916 | { | |
1917 | warning (_("May not insert breakpoints")); | |
1918 | return 1; | |
1919 | } | |
1920 | ||
6b84065d TT |
1921 | return current_target.to_insert_breakpoint (¤t_target, |
1922 | gdbarch, bp_tgt); | |
d914c394 SS |
1923 | } |
1924 | ||
3db08215 MM |
1925 | /* See target.h. */ |
1926 | ||
d914c394 | 1927 | int |
6b84065d TT |
1928 | target_remove_breakpoint (struct gdbarch *gdbarch, |
1929 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
1930 | { |
1931 | /* This is kind of a weird case to handle, but the permission might | |
1932 | have been changed after breakpoints were inserted - in which case | |
1933 | we should just take the user literally and assume that any | |
1934 | breakpoints should be left in place. */ | |
1935 | if (!may_insert_breakpoints) | |
1936 | { | |
1937 | warning (_("May not remove breakpoints")); | |
1938 | return 1; | |
1939 | } | |
1940 | ||
6b84065d TT |
1941 | return current_target.to_remove_breakpoint (¤t_target, |
1942 | gdbarch, bp_tgt); | |
d914c394 SS |
1943 | } |
1944 | ||
c906108c | 1945 | static void |
fba45db2 | 1946 | target_info (char *args, int from_tty) |
c906108c SS |
1947 | { |
1948 | struct target_ops *t; | |
c906108c | 1949 | int has_all_mem = 0; |
c5aa993b | 1950 | |
c906108c | 1951 | if (symfile_objfile != NULL) |
4262abfb JK |
1952 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
1953 | objfile_name (symfile_objfile)); | |
c906108c | 1954 | |
258b763a | 1955 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1956 | { |
c35b1492 | 1957 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
1958 | continue; |
1959 | ||
c5aa993b | 1960 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1961 | continue; |
1962 | if (has_all_mem) | |
3e43a32a MS |
1963 | printf_unfiltered (_("\tWhile running this, " |
1964 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
1965 | printf_unfiltered ("%s:\n", t->to_longname); |
1966 | (t->to_files_info) (t); | |
c35b1492 | 1967 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
1968 | } |
1969 | } | |
1970 | ||
fd79ecee DJ |
1971 | /* This function is called before any new inferior is created, e.g. |
1972 | by running a program, attaching, or connecting to a target. | |
1973 | It cleans up any state from previous invocations which might | |
1974 | change between runs. This is a subset of what target_preopen | |
1975 | resets (things which might change between targets). */ | |
1976 | ||
1977 | void | |
1978 | target_pre_inferior (int from_tty) | |
1979 | { | |
c378eb4e | 1980 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 1981 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 1982 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
1983 | to reproduce: |
1984 | ||
1985 | bash$ ./foo& | |
1986 | [1] 4711 | |
1987 | bash$ ./foo& | |
1988 | [1] 4712 | |
1989 | bash$ gdb ./foo | |
1990 | [...] | |
1991 | (gdb) attach 4711 | |
1992 | (gdb) detach | |
1993 | (gdb) attach 4712 | |
1994 | Cannot access memory at address 0xdeadbeef | |
1995 | */ | |
b9db4ced | 1996 | |
50c71eaf PA |
1997 | /* In some OSs, the shared library list is the same/global/shared |
1998 | across inferiors. If code is shared between processes, so are | |
1999 | memory regions and features. */ | |
f5656ead | 2000 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2001 | { |
2002 | no_shared_libraries (NULL, from_tty); | |
2003 | ||
2004 | invalidate_target_mem_regions (); | |
424163ea | 2005 | |
50c71eaf PA |
2006 | target_clear_description (); |
2007 | } | |
8ffcbaaf YQ |
2008 | |
2009 | agent_capability_invalidate (); | |
fd79ecee DJ |
2010 | } |
2011 | ||
b8fa0bfa PA |
2012 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2013 | inferior. */ | |
2014 | ||
2015 | static int | |
2016 | dispose_inferior (struct inferior *inf, void *args) | |
2017 | { | |
2018 | struct thread_info *thread; | |
2019 | ||
2020 | thread = any_thread_of_process (inf->pid); | |
2021 | if (thread) | |
2022 | { | |
2023 | switch_to_thread (thread->ptid); | |
2024 | ||
2025 | /* Core inferiors actually should be detached, not killed. */ | |
2026 | if (target_has_execution) | |
2027 | target_kill (); | |
2028 | else | |
2029 | target_detach (NULL, 0); | |
2030 | } | |
2031 | ||
2032 | return 0; | |
2033 | } | |
2034 | ||
c906108c SS |
2035 | /* This is to be called by the open routine before it does |
2036 | anything. */ | |
2037 | ||
2038 | void | |
fba45db2 | 2039 | target_preopen (int from_tty) |
c906108c | 2040 | { |
c5aa993b | 2041 | dont_repeat (); |
c906108c | 2042 | |
b8fa0bfa | 2043 | if (have_inferiors ()) |
c5aa993b | 2044 | { |
adf40b2e | 2045 | if (!from_tty |
b8fa0bfa PA |
2046 | || !have_live_inferiors () |
2047 | || query (_("A program is being debugged already. Kill it? "))) | |
2048 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2049 | else |
8a3fe4f8 | 2050 | error (_("Program not killed.")); |
c906108c SS |
2051 | } |
2052 | ||
2053 | /* Calling target_kill may remove the target from the stack. But if | |
2054 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2055 | /* Leave the exec target, though. The user may be switching from a |
2056 | live process to a core of the same program. */ | |
460014f5 | 2057 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2058 | |
2059 | target_pre_inferior (from_tty); | |
c906108c SS |
2060 | } |
2061 | ||
2062 | /* Detach a target after doing deferred register stores. */ | |
2063 | ||
2064 | void | |
52554a0e | 2065 | target_detach (const char *args, int from_tty) |
c906108c | 2066 | { |
136d6dae VP |
2067 | struct target_ops* t; |
2068 | ||
f5656ead | 2069 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2070 | /* Don't remove global breakpoints here. They're removed on |
2071 | disconnection from the target. */ | |
2072 | ; | |
2073 | else | |
2074 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2075 | them before detaching. */ | |
dfd4cc63 | 2076 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2077 | |
24291992 PA |
2078 | prepare_for_detach (); |
2079 | ||
09da0d0a TT |
2080 | current_target.to_detach (¤t_target, args, from_tty); |
2081 | if (targetdebug) | |
2082 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2083 | args, from_tty); | |
c906108c SS |
2084 | } |
2085 | ||
6ad8ae5c DJ |
2086 | void |
2087 | target_disconnect (char *args, int from_tty) | |
2088 | { | |
50c71eaf PA |
2089 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2090 | are global across processes, we have to remove them before | |
2091 | disconnecting. */ | |
74960c60 VP |
2092 | remove_breakpoints (); |
2093 | ||
86a0854a TT |
2094 | if (targetdebug) |
2095 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2096 | args, from_tty); | |
2097 | current_target.to_disconnect (¤t_target, args, from_tty); | |
6ad8ae5c DJ |
2098 | } |
2099 | ||
117de6a9 | 2100 | ptid_t |
47608cb1 | 2101 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2102 | { |
2103 | struct target_ops *t; | |
6b84065d TT |
2104 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2105 | status, options); | |
117de6a9 | 2106 | |
6b84065d | 2107 | if (targetdebug) |
117de6a9 | 2108 | { |
6b84065d TT |
2109 | char *status_string; |
2110 | char *options_string; | |
117de6a9 | 2111 | |
6b84065d TT |
2112 | status_string = target_waitstatus_to_string (status); |
2113 | options_string = target_options_to_string (options); | |
2114 | fprintf_unfiltered (gdb_stdlog, | |
2115 | "target_wait (%d, status, options={%s})" | |
2116 | " = %d, %s\n", | |
2117 | ptid_get_pid (ptid), options_string, | |
2118 | ptid_get_pid (retval), status_string); | |
2119 | xfree (status_string); | |
2120 | xfree (options_string); | |
117de6a9 PA |
2121 | } |
2122 | ||
6b84065d | 2123 | return retval; |
117de6a9 PA |
2124 | } |
2125 | ||
2126 | char * | |
2127 | target_pid_to_str (ptid_t ptid) | |
2128 | { | |
770234d3 | 2129 | return (*current_target.to_pid_to_str) (¤t_target, ptid); |
117de6a9 PA |
2130 | } |
2131 | ||
4694da01 TT |
2132 | char * |
2133 | target_thread_name (struct thread_info *info) | |
2134 | { | |
825828fc | 2135 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2136 | } |
2137 | ||
e1ac3328 | 2138 | void |
2ea28649 | 2139 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2140 | { |
28439f5e PA |
2141 | struct target_ops *t; |
2142 | ||
4e5d721f | 2143 | target_dcache_invalidate (); |
28439f5e | 2144 | |
6b84065d TT |
2145 | current_target.to_resume (¤t_target, ptid, step, signal); |
2146 | if (targetdebug) | |
2147 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2148 | ptid_get_pid (ptid), | |
2149 | step ? "step" : "continue", | |
2150 | gdb_signal_to_name (signal)); | |
28439f5e | 2151 | |
6b84065d TT |
2152 | registers_changed_ptid (ptid); |
2153 | set_executing (ptid, 1); | |
2154 | set_running (ptid, 1); | |
2155 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2156 | } |
2455069d UW |
2157 | |
2158 | void | |
2159 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2160 | { | |
035cad7f | 2161 | if (targetdebug) |
2455069d | 2162 | { |
035cad7f | 2163 | int i; |
2455069d | 2164 | |
035cad7f TT |
2165 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", |
2166 | numsigs); | |
2455069d | 2167 | |
035cad7f TT |
2168 | for (i = 0; i < numsigs; i++) |
2169 | if (pass_signals[i]) | |
2170 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2171 | gdb_signal_to_name (i)); | |
2455069d | 2172 | |
035cad7f | 2173 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
2455069d | 2174 | } |
035cad7f TT |
2175 | |
2176 | (*current_target.to_pass_signals) (¤t_target, numsigs, pass_signals); | |
2455069d UW |
2177 | } |
2178 | ||
9b224c5e PA |
2179 | void |
2180 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2181 | { | |
7d4f8efa | 2182 | if (targetdebug) |
9b224c5e | 2183 | { |
7d4f8efa | 2184 | int i; |
9b224c5e | 2185 | |
7d4f8efa TT |
2186 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", |
2187 | numsigs); | |
9b224c5e | 2188 | |
7d4f8efa TT |
2189 | for (i = 0; i < numsigs; i++) |
2190 | if (program_signals[i]) | |
2191 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2192 | gdb_signal_to_name (i)); | |
9b224c5e | 2193 | |
7d4f8efa | 2194 | fprintf_unfiltered (gdb_stdlog, " })\n"); |
9b224c5e | 2195 | } |
7d4f8efa TT |
2196 | |
2197 | (*current_target.to_program_signals) (¤t_target, | |
2198 | numsigs, program_signals); | |
9b224c5e PA |
2199 | } |
2200 | ||
098dba18 TT |
2201 | static int |
2202 | default_follow_fork (struct target_ops *self, int follow_child, | |
2203 | int detach_fork) | |
2204 | { | |
2205 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2206 | internal_error (__FILE__, __LINE__, | |
2207 | _("could not find a target to follow fork")); | |
2208 | } | |
2209 | ||
ee057212 DJ |
2210 | /* Look through the list of possible targets for a target that can |
2211 | follow forks. */ | |
2212 | ||
2213 | int | |
07107ca6 | 2214 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 | 2215 | { |
098dba18 TT |
2216 | int retval = current_target.to_follow_fork (¤t_target, |
2217 | follow_child, detach_fork); | |
ee057212 | 2218 | |
098dba18 TT |
2219 | if (targetdebug) |
2220 | fprintf_unfiltered (gdb_stdlog, | |
2221 | "target_follow_fork (%d, %d) = %d\n", | |
2222 | follow_child, detach_fork, retval); | |
2223 | return retval; | |
ee057212 DJ |
2224 | } |
2225 | ||
8d657035 TT |
2226 | static void |
2227 | default_mourn_inferior (struct target_ops *self) | |
2228 | { | |
2229 | internal_error (__FILE__, __LINE__, | |
2230 | _("could not find a target to follow mourn inferior")); | |
2231 | } | |
2232 | ||
136d6dae VP |
2233 | void |
2234 | target_mourn_inferior (void) | |
2235 | { | |
8d657035 TT |
2236 | current_target.to_mourn_inferior (¤t_target); |
2237 | if (targetdebug) | |
2238 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
136d6dae | 2239 | |
8d657035 TT |
2240 | /* We no longer need to keep handles on any of the object files. |
2241 | Make sure to release them to avoid unnecessarily locking any | |
2242 | of them while we're not actually debugging. */ | |
2243 | bfd_cache_close_all (); | |
136d6dae VP |
2244 | } |
2245 | ||
424163ea DJ |
2246 | /* Look for a target which can describe architectural features, starting |
2247 | from TARGET. If we find one, return its description. */ | |
2248 | ||
2249 | const struct target_desc * | |
2250 | target_read_description (struct target_ops *target) | |
2251 | { | |
2117c711 | 2252 | return target->to_read_description (target); |
424163ea DJ |
2253 | } |
2254 | ||
58a5184e | 2255 | /* This implements a basic search of memory, reading target memory and |
08388c79 DE |
2256 | performing the search here (as opposed to performing the search in on the |
2257 | target side with, for example, gdbserver). */ | |
2258 | ||
2259 | int | |
2260 | simple_search_memory (struct target_ops *ops, | |
2261 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2262 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2263 | CORE_ADDR *found_addrp) | |
2264 | { | |
2265 | /* NOTE: also defined in find.c testcase. */ | |
2266 | #define SEARCH_CHUNK_SIZE 16000 | |
2267 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2268 | /* Buffer to hold memory contents for searching. */ | |
2269 | gdb_byte *search_buf; | |
2270 | unsigned search_buf_size; | |
2271 | struct cleanup *old_cleanups; | |
2272 | ||
2273 | search_buf_size = chunk_size + pattern_len - 1; | |
2274 | ||
2275 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2276 | if (search_space_len < search_buf_size) | |
2277 | search_buf_size = search_space_len; | |
2278 | ||
2279 | search_buf = malloc (search_buf_size); | |
2280 | if (search_buf == NULL) | |
5e1471f5 | 2281 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2282 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2283 | ||
2284 | /* Prime the search buffer. */ | |
2285 | ||
2286 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2287 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2288 | { | |
b3dc46ff AB |
2289 | warning (_("Unable to access %s bytes of target " |
2290 | "memory at %s, halting search."), | |
2291 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2292 | do_cleanups (old_cleanups); |
2293 | return -1; | |
2294 | } | |
2295 | ||
2296 | /* Perform the search. | |
2297 | ||
2298 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2299 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2300 | read in another N bytes. */ | |
2301 | ||
2302 | while (search_space_len >= pattern_len) | |
2303 | { | |
2304 | gdb_byte *found_ptr; | |
2305 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2306 | ||
2307 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2308 | pattern, pattern_len); | |
2309 | ||
2310 | if (found_ptr != NULL) | |
2311 | { | |
2312 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2313 | |
08388c79 DE |
2314 | *found_addrp = found_addr; |
2315 | do_cleanups (old_cleanups); | |
2316 | return 1; | |
2317 | } | |
2318 | ||
2319 | /* Not found in this chunk, skip to next chunk. */ | |
2320 | ||
2321 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2322 | if (search_space_len >= chunk_size) | |
2323 | search_space_len -= chunk_size; | |
2324 | else | |
2325 | search_space_len = 0; | |
2326 | ||
2327 | if (search_space_len >= pattern_len) | |
2328 | { | |
2329 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2330 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2331 | int nr_to_read; |
2332 | ||
2333 | /* Copy the trailing part of the previous iteration to the front | |
2334 | of the buffer for the next iteration. */ | |
2335 | gdb_assert (keep_len == pattern_len - 1); | |
2336 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2337 | ||
2338 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2339 | ||
2340 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2341 | search_buf + keep_len, read_addr, | |
2342 | nr_to_read) != nr_to_read) | |
2343 | { | |
b3dc46ff | 2344 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2345 | "memory at %s, halting search."), |
b3dc46ff | 2346 | plongest (nr_to_read), |
08388c79 DE |
2347 | hex_string (read_addr)); |
2348 | do_cleanups (old_cleanups); | |
2349 | return -1; | |
2350 | } | |
2351 | ||
2352 | start_addr += chunk_size; | |
2353 | } | |
2354 | } | |
2355 | ||
2356 | /* Not found. */ | |
2357 | ||
2358 | do_cleanups (old_cleanups); | |
2359 | return 0; | |
2360 | } | |
2361 | ||
58a5184e TT |
2362 | /* Default implementation of memory-searching. */ |
2363 | ||
2364 | static int | |
2365 | default_search_memory (struct target_ops *self, | |
2366 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2367 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2368 | CORE_ADDR *found_addrp) | |
2369 | { | |
2370 | /* Start over from the top of the target stack. */ | |
2371 | return simple_search_memory (current_target.beneath, | |
2372 | start_addr, search_space_len, | |
2373 | pattern, pattern_len, found_addrp); | |
2374 | } | |
2375 | ||
08388c79 DE |
2376 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
2377 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2378 | ||
2379 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2380 | requiring halting of the search (e.g. memory read error). | |
2381 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2382 | ||
2383 | int | |
2384 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2385 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2386 | CORE_ADDR *found_addrp) | |
2387 | { | |
08388c79 DE |
2388 | int found; |
2389 | ||
08388c79 DE |
2390 | if (targetdebug) |
2391 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2392 | hex_string (start_addr)); | |
2393 | ||
58a5184e TT |
2394 | found = current_target.to_search_memory (¤t_target, start_addr, |
2395 | search_space_len, | |
2396 | pattern, pattern_len, found_addrp); | |
08388c79 DE |
2397 | |
2398 | if (targetdebug) | |
2399 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2400 | ||
2401 | return found; | |
2402 | } | |
2403 | ||
8edfe269 DJ |
2404 | /* Look through the currently pushed targets. If none of them will |
2405 | be able to restart the currently running process, issue an error | |
2406 | message. */ | |
2407 | ||
2408 | void | |
2409 | target_require_runnable (void) | |
2410 | { | |
2411 | struct target_ops *t; | |
2412 | ||
2413 | for (t = target_stack; t != NULL; t = t->beneath) | |
2414 | { | |
2415 | /* If this target knows how to create a new program, then | |
2416 | assume we will still be able to after killing the current | |
2417 | one. Either killing and mourning will not pop T, or else | |
2418 | find_default_run_target will find it again. */ | |
2419 | if (t->to_create_inferior != NULL) | |
2420 | return; | |
2421 | ||
2422 | /* Do not worry about thread_stratum targets that can not | |
2423 | create inferiors. Assume they will be pushed again if | |
2424 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2425 | if (t->to_stratum == thread_stratum |
2426 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2427 | continue; |
2428 | ||
3e43a32a MS |
2429 | error (_("The \"%s\" target does not support \"run\". " |
2430 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2431 | t->to_shortname); |
2432 | } | |
2433 | ||
2434 | /* This function is only called if the target is running. In that | |
2435 | case there should have been a process_stratum target and it | |
c378eb4e | 2436 | should either know how to create inferiors, or not... */ |
9b20d036 | 2437 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2438 | } |
2439 | ||
6a3cb8e8 PA |
2440 | /* Whether GDB is allowed to fall back to the default run target for |
2441 | "run", "attach", etc. when no target is connected yet. */ | |
2442 | static int auto_connect_native_target = 1; | |
2443 | ||
2444 | static void | |
2445 | show_auto_connect_native_target (struct ui_file *file, int from_tty, | |
2446 | struct cmd_list_element *c, const char *value) | |
2447 | { | |
2448 | fprintf_filtered (file, | |
2449 | _("Whether GDB may automatically connect to the " | |
2450 | "native target is %s.\n"), | |
2451 | value); | |
2452 | } | |
2453 | ||
c906108c SS |
2454 | /* Look through the list of possible targets for a target that can |
2455 | execute a run or attach command without any other data. This is | |
2456 | used to locate the default process stratum. | |
2457 | ||
5f667f2d PA |
2458 | If DO_MESG is not NULL, the result is always valid (error() is |
2459 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2460 | |
2461 | static struct target_ops * | |
fba45db2 | 2462 | find_default_run_target (char *do_mesg) |
c906108c | 2463 | { |
c906108c | 2464 | struct target_ops *runable = NULL; |
c906108c | 2465 | |
6a3cb8e8 | 2466 | if (auto_connect_native_target) |
c906108c | 2467 | { |
6a3cb8e8 PA |
2468 | struct target_ops **t; |
2469 | int count = 0; | |
2470 | ||
2471 | for (t = target_structs; t < target_structs + target_struct_size; | |
2472 | ++t) | |
c906108c | 2473 | { |
6a3cb8e8 PA |
2474 | if ((*t)->to_can_run != delegate_can_run && target_can_run (*t)) |
2475 | { | |
2476 | runable = *t; | |
2477 | ++count; | |
2478 | } | |
c906108c | 2479 | } |
6a3cb8e8 PA |
2480 | |
2481 | if (count != 1) | |
2482 | runable = NULL; | |
c906108c SS |
2483 | } |
2484 | ||
6a3cb8e8 | 2485 | if (runable == NULL) |
5f667f2d PA |
2486 | { |
2487 | if (do_mesg) | |
2488 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2489 | else | |
2490 | return NULL; | |
2491 | } | |
c906108c SS |
2492 | |
2493 | return runable; | |
2494 | } | |
2495 | ||
b3ccfe11 | 2496 | /* See target.h. */ |
c906108c | 2497 | |
b3ccfe11 TT |
2498 | struct target_ops * |
2499 | find_attach_target (void) | |
c906108c SS |
2500 | { |
2501 | struct target_ops *t; | |
2502 | ||
b3ccfe11 TT |
2503 | /* If a target on the current stack can attach, use it. */ |
2504 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2505 | { | |
2506 | if (t->to_attach != NULL) | |
2507 | break; | |
2508 | } | |
c906108c | 2509 | |
b3ccfe11 TT |
2510 | /* Otherwise, use the default run target for attaching. */ |
2511 | if (t == NULL) | |
2512 | t = find_default_run_target ("attach"); | |
b84876c2 | 2513 | |
b3ccfe11 | 2514 | return t; |
b84876c2 PA |
2515 | } |
2516 | ||
b3ccfe11 | 2517 | /* See target.h. */ |
b84876c2 | 2518 | |
b3ccfe11 TT |
2519 | struct target_ops * |
2520 | find_run_target (void) | |
9908b566 VP |
2521 | { |
2522 | struct target_ops *t; | |
2523 | ||
b3ccfe11 TT |
2524 | /* If a target on the current stack can attach, use it. */ |
2525 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2526 | { | |
2527 | if (t->to_create_inferior != NULL) | |
2528 | break; | |
2529 | } | |
5d502164 | 2530 | |
b3ccfe11 TT |
2531 | /* Otherwise, use the default run target. */ |
2532 | if (t == NULL) | |
2533 | t = find_default_run_target ("run"); | |
9908b566 | 2534 | |
b3ccfe11 | 2535 | return t; |
9908b566 VP |
2536 | } |
2537 | ||
145b16a9 UW |
2538 | /* Implement the "info proc" command. */ |
2539 | ||
451b7c33 | 2540 | int |
145b16a9 UW |
2541 | target_info_proc (char *args, enum info_proc_what what) |
2542 | { | |
2543 | struct target_ops *t; | |
2544 | ||
2545 | /* If we're already connected to something that can get us OS | |
2546 | related data, use it. Otherwise, try using the native | |
2547 | target. */ | |
2548 | if (current_target.to_stratum >= process_stratum) | |
2549 | t = current_target.beneath; | |
2550 | else | |
2551 | t = find_default_run_target (NULL); | |
2552 | ||
2553 | for (; t != NULL; t = t->beneath) | |
2554 | { | |
2555 | if (t->to_info_proc != NULL) | |
2556 | { | |
2557 | t->to_info_proc (t, args, what); | |
2558 | ||
2559 | if (targetdebug) | |
2560 | fprintf_unfiltered (gdb_stdlog, | |
2561 | "target_info_proc (\"%s\", %d)\n", args, what); | |
2562 | ||
451b7c33 | 2563 | return 1; |
145b16a9 UW |
2564 | } |
2565 | } | |
2566 | ||
451b7c33 | 2567 | return 0; |
145b16a9 UW |
2568 | } |
2569 | ||
03583c20 | 2570 | static int |
2bfc0540 | 2571 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
2572 | { |
2573 | struct target_ops *t; | |
2574 | ||
2575 | t = find_default_run_target (NULL); | |
2576 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 2577 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
2578 | return 0; |
2579 | } | |
2580 | ||
2581 | int | |
2582 | target_supports_disable_randomization (void) | |
2583 | { | |
2584 | struct target_ops *t; | |
2585 | ||
2586 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
2587 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 2588 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
2589 | |
2590 | return 0; | |
2591 | } | |
9908b566 | 2592 | |
07e059b5 VP |
2593 | char * |
2594 | target_get_osdata (const char *type) | |
2595 | { | |
07e059b5 VP |
2596 | struct target_ops *t; |
2597 | ||
739ef7fb PA |
2598 | /* If we're already connected to something that can get us OS |
2599 | related data, use it. Otherwise, try using the native | |
2600 | target. */ | |
2601 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 2602 | t = current_target.beneath; |
739ef7fb PA |
2603 | else |
2604 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
2605 | |
2606 | if (!t) | |
2607 | return NULL; | |
2608 | ||
6d097e65 | 2609 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
2610 | } |
2611 | ||
6c95b8df PA |
2612 | /* Determine the current address space of thread PTID. */ |
2613 | ||
2614 | struct address_space * | |
2615 | target_thread_address_space (ptid_t ptid) | |
2616 | { | |
c0694254 | 2617 | struct address_space *aspace; |
6c95b8df | 2618 | struct inferior *inf; |
c0694254 PA |
2619 | struct target_ops *t; |
2620 | ||
2621 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2622 | { | |
2623 | if (t->to_thread_address_space != NULL) | |
2624 | { | |
2625 | aspace = t->to_thread_address_space (t, ptid); | |
2626 | gdb_assert (aspace); | |
6c95b8df | 2627 | |
c0694254 PA |
2628 | if (targetdebug) |
2629 | fprintf_unfiltered (gdb_stdlog, | |
2630 | "target_thread_address_space (%s) = %d\n", | |
2631 | target_pid_to_str (ptid), | |
2632 | address_space_num (aspace)); | |
2633 | return aspace; | |
2634 | } | |
2635 | } | |
6c95b8df PA |
2636 | |
2637 | /* Fall-back to the "main" address space of the inferior. */ | |
2638 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
2639 | ||
2640 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 2641 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
2642 | _("Can't determine the current " |
2643 | "address space of thread %s\n"), | |
6c95b8df PA |
2644 | target_pid_to_str (ptid)); |
2645 | ||
2646 | return inf->aspace; | |
2647 | } | |
2648 | ||
7313baad UW |
2649 | |
2650 | /* Target file operations. */ | |
2651 | ||
2652 | static struct target_ops * | |
2653 | default_fileio_target (void) | |
2654 | { | |
2655 | /* If we're already connected to something that can perform | |
2656 | file I/O, use it. Otherwise, try using the native target. */ | |
2657 | if (current_target.to_stratum >= process_stratum) | |
2658 | return current_target.beneath; | |
2659 | else | |
2660 | return find_default_run_target ("file I/O"); | |
2661 | } | |
2662 | ||
2663 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
2664 | target file descriptor, or -1 if an error occurs (and set | |
2665 | *TARGET_ERRNO). */ | |
2666 | int | |
2667 | target_fileio_open (const char *filename, int flags, int mode, | |
2668 | int *target_errno) | |
2669 | { | |
2670 | struct target_ops *t; | |
2671 | ||
2672 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2673 | { | |
2674 | if (t->to_fileio_open != NULL) | |
2675 | { | |
cd897586 | 2676 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
2677 | |
2678 | if (targetdebug) | |
2679 | fprintf_unfiltered (gdb_stdlog, | |
2680 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
2681 | filename, flags, mode, | |
2682 | fd, fd != -1 ? 0 : *target_errno); | |
2683 | return fd; | |
2684 | } | |
2685 | } | |
2686 | ||
2687 | *target_errno = FILEIO_ENOSYS; | |
2688 | return -1; | |
2689 | } | |
2690 | ||
2691 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
2692 | Return the number of bytes written, or -1 if an error occurs | |
2693 | (and set *TARGET_ERRNO). */ | |
2694 | int | |
2695 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
2696 | ULONGEST offset, int *target_errno) | |
2697 | { | |
2698 | struct target_ops *t; | |
2699 | ||
2700 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2701 | { | |
2702 | if (t->to_fileio_pwrite != NULL) | |
2703 | { | |
0d866f62 | 2704 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
2705 | target_errno); |
2706 | ||
2707 | if (targetdebug) | |
2708 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 2709 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 2710 | "= %d (%d)\n", |
a71b5a38 | 2711 | fd, len, pulongest (offset), |
7313baad UW |
2712 | ret, ret != -1 ? 0 : *target_errno); |
2713 | return ret; | |
2714 | } | |
2715 | } | |
2716 | ||
2717 | *target_errno = FILEIO_ENOSYS; | |
2718 | return -1; | |
2719 | } | |
2720 | ||
2721 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
2722 | Return the number of bytes read, or -1 if an error occurs | |
2723 | (and set *TARGET_ERRNO). */ | |
2724 | int | |
2725 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
2726 | ULONGEST offset, int *target_errno) | |
2727 | { | |
2728 | struct target_ops *t; | |
2729 | ||
2730 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2731 | { | |
2732 | if (t->to_fileio_pread != NULL) | |
2733 | { | |
a3be983c | 2734 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
2735 | target_errno); |
2736 | ||
2737 | if (targetdebug) | |
2738 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 2739 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 2740 | "= %d (%d)\n", |
a71b5a38 | 2741 | fd, len, pulongest (offset), |
7313baad UW |
2742 | ret, ret != -1 ? 0 : *target_errno); |
2743 | return ret; | |
2744 | } | |
2745 | } | |
2746 | ||
2747 | *target_errno = FILEIO_ENOSYS; | |
2748 | return -1; | |
2749 | } | |
2750 | ||
2751 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
2752 | (and set *TARGET_ERRNO). */ | |
2753 | int | |
2754 | target_fileio_close (int fd, int *target_errno) | |
2755 | { | |
2756 | struct target_ops *t; | |
2757 | ||
2758 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2759 | { | |
2760 | if (t->to_fileio_close != NULL) | |
2761 | { | |
df39ea25 | 2762 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
2763 | |
2764 | if (targetdebug) | |
2765 | fprintf_unfiltered (gdb_stdlog, | |
2766 | "target_fileio_close (%d) = %d (%d)\n", | |
2767 | fd, ret, ret != -1 ? 0 : *target_errno); | |
2768 | return ret; | |
2769 | } | |
2770 | } | |
2771 | ||
2772 | *target_errno = FILEIO_ENOSYS; | |
2773 | return -1; | |
2774 | } | |
2775 | ||
2776 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
2777 | occurs (and set *TARGET_ERRNO). */ | |
2778 | int | |
2779 | target_fileio_unlink (const char *filename, int *target_errno) | |
2780 | { | |
2781 | struct target_ops *t; | |
2782 | ||
2783 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2784 | { | |
2785 | if (t->to_fileio_unlink != NULL) | |
2786 | { | |
dbbca37d | 2787 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
2788 | |
2789 | if (targetdebug) | |
2790 | fprintf_unfiltered (gdb_stdlog, | |
2791 | "target_fileio_unlink (%s) = %d (%d)\n", | |
2792 | filename, ret, ret != -1 ? 0 : *target_errno); | |
2793 | return ret; | |
2794 | } | |
2795 | } | |
2796 | ||
2797 | *target_errno = FILEIO_ENOSYS; | |
2798 | return -1; | |
2799 | } | |
2800 | ||
b9e7b9c3 UW |
2801 | /* Read value of symbolic link FILENAME on the target. Return a |
2802 | null-terminated string allocated via xmalloc, or NULL if an error | |
2803 | occurs (and set *TARGET_ERRNO). */ | |
2804 | char * | |
2805 | target_fileio_readlink (const char *filename, int *target_errno) | |
2806 | { | |
2807 | struct target_ops *t; | |
2808 | ||
2809 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
2810 | { | |
2811 | if (t->to_fileio_readlink != NULL) | |
2812 | { | |
fab5aa7c | 2813 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
2814 | |
2815 | if (targetdebug) | |
2816 | fprintf_unfiltered (gdb_stdlog, | |
2817 | "target_fileio_readlink (%s) = %s (%d)\n", | |
2818 | filename, ret? ret : "(nil)", | |
2819 | ret? 0 : *target_errno); | |
2820 | return ret; | |
2821 | } | |
2822 | } | |
2823 | ||
2824 | *target_errno = FILEIO_ENOSYS; | |
2825 | return NULL; | |
2826 | } | |
2827 | ||
7313baad UW |
2828 | static void |
2829 | target_fileio_close_cleanup (void *opaque) | |
2830 | { | |
2831 | int fd = *(int *) opaque; | |
2832 | int target_errno; | |
2833 | ||
2834 | target_fileio_close (fd, &target_errno); | |
2835 | } | |
2836 | ||
2837 | /* Read target file FILENAME. Store the result in *BUF_P and | |
2838 | return the size of the transferred data. PADDING additional bytes are | |
2839 | available in *BUF_P. This is a helper function for | |
2840 | target_fileio_read_alloc; see the declaration of that function for more | |
2841 | information. */ | |
2842 | ||
2843 | static LONGEST | |
2844 | target_fileio_read_alloc_1 (const char *filename, | |
2845 | gdb_byte **buf_p, int padding) | |
2846 | { | |
2847 | struct cleanup *close_cleanup; | |
2848 | size_t buf_alloc, buf_pos; | |
2849 | gdb_byte *buf; | |
2850 | LONGEST n; | |
2851 | int fd; | |
2852 | int target_errno; | |
2853 | ||
2854 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
2855 | if (fd == -1) | |
2856 | return -1; | |
2857 | ||
2858 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
2859 | ||
2860 | /* Start by reading up to 4K at a time. The target will throttle | |
2861 | this number down if necessary. */ | |
2862 | buf_alloc = 4096; | |
2863 | buf = xmalloc (buf_alloc); | |
2864 | buf_pos = 0; | |
2865 | while (1) | |
2866 | { | |
2867 | n = target_fileio_pread (fd, &buf[buf_pos], | |
2868 | buf_alloc - buf_pos - padding, buf_pos, | |
2869 | &target_errno); | |
2870 | if (n < 0) | |
2871 | { | |
2872 | /* An error occurred. */ | |
2873 | do_cleanups (close_cleanup); | |
2874 | xfree (buf); | |
2875 | return -1; | |
2876 | } | |
2877 | else if (n == 0) | |
2878 | { | |
2879 | /* Read all there was. */ | |
2880 | do_cleanups (close_cleanup); | |
2881 | if (buf_pos == 0) | |
2882 | xfree (buf); | |
2883 | else | |
2884 | *buf_p = buf; | |
2885 | return buf_pos; | |
2886 | } | |
2887 | ||
2888 | buf_pos += n; | |
2889 | ||
2890 | /* If the buffer is filling up, expand it. */ | |
2891 | if (buf_alloc < buf_pos * 2) | |
2892 | { | |
2893 | buf_alloc *= 2; | |
2894 | buf = xrealloc (buf, buf_alloc); | |
2895 | } | |
2896 | ||
2897 | QUIT; | |
2898 | } | |
2899 | } | |
2900 | ||
2901 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
2902 | the size of the transferred data. See the declaration in "target.h" | |
2903 | function for more information about the return value. */ | |
2904 | ||
2905 | LONGEST | |
2906 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
2907 | { | |
2908 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
2909 | } | |
2910 | ||
2911 | /* Read target file FILENAME. The result is NUL-terminated and | |
2912 | returned as a string, allocated using xmalloc. If an error occurs | |
2913 | or the transfer is unsupported, NULL is returned. Empty objects | |
2914 | are returned as allocated but empty strings. A warning is issued | |
2915 | if the result contains any embedded NUL bytes. */ | |
2916 | ||
2917 | char * | |
2918 | target_fileio_read_stralloc (const char *filename) | |
2919 | { | |
39086a0e PA |
2920 | gdb_byte *buffer; |
2921 | char *bufstr; | |
7313baad UW |
2922 | LONGEST i, transferred; |
2923 | ||
39086a0e PA |
2924 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
2925 | bufstr = (char *) buffer; | |
7313baad UW |
2926 | |
2927 | if (transferred < 0) | |
2928 | return NULL; | |
2929 | ||
2930 | if (transferred == 0) | |
2931 | return xstrdup (""); | |
2932 | ||
39086a0e | 2933 | bufstr[transferred] = 0; |
7313baad UW |
2934 | |
2935 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2936 | for (i = strlen (bufstr); i < transferred; i++) |
2937 | if (bufstr[i] != 0) | |
7313baad UW |
2938 | { |
2939 | warning (_("target file %s " | |
2940 | "contained unexpected null characters"), | |
2941 | filename); | |
2942 | break; | |
2943 | } | |
2944 | ||
39086a0e | 2945 | return bufstr; |
7313baad UW |
2946 | } |
2947 | ||
2948 | ||
e0d24f8d | 2949 | static int |
31568a15 TT |
2950 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
2951 | CORE_ADDR addr, int len) | |
e0d24f8d | 2952 | { |
f5656ead | 2953 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
2954 | } |
2955 | ||
5009afc5 AS |
2956 | static int |
2957 | default_watchpoint_addr_within_range (struct target_ops *target, | |
2958 | CORE_ADDR addr, | |
2959 | CORE_ADDR start, int length) | |
2960 | { | |
2961 | return addr >= start && addr < start + length; | |
2962 | } | |
2963 | ||
c2250ad1 UW |
2964 | static struct gdbarch * |
2965 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
2966 | { | |
f5656ead | 2967 | return target_gdbarch (); |
c2250ad1 UW |
2968 | } |
2969 | ||
c906108c | 2970 | static int |
555bbdeb TT |
2971 | return_zero (struct target_ops *ignore) |
2972 | { | |
2973 | return 0; | |
2974 | } | |
2975 | ||
2976 | static int | |
2977 | return_zero_has_execution (struct target_ops *ignore, ptid_t ignore2) | |
c906108c SS |
2978 | { |
2979 | return 0; | |
2980 | } | |
2981 | ||
ed9a39eb JM |
2982 | /* |
2983 | * Find the next target down the stack from the specified target. | |
2984 | */ | |
2985 | ||
2986 | struct target_ops * | |
fba45db2 | 2987 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 2988 | { |
258b763a | 2989 | return t->beneath; |
ed9a39eb JM |
2990 | } |
2991 | ||
8b06beed TT |
2992 | /* See target.h. */ |
2993 | ||
2994 | struct target_ops * | |
2995 | find_target_at (enum strata stratum) | |
2996 | { | |
2997 | struct target_ops *t; | |
2998 | ||
2999 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3000 | if (t->to_stratum == stratum) | |
3001 | return t; | |
3002 | ||
3003 | return NULL; | |
3004 | } | |
3005 | ||
c906108c SS |
3006 | \f |
3007 | /* The inferior process has died. Long live the inferior! */ | |
3008 | ||
3009 | void | |
fba45db2 | 3010 | generic_mourn_inferior (void) |
c906108c | 3011 | { |
7f9f62ba | 3012 | ptid_t ptid; |
c906108c | 3013 | |
7f9f62ba | 3014 | ptid = inferior_ptid; |
39f77062 | 3015 | inferior_ptid = null_ptid; |
7f9f62ba | 3016 | |
f59f708a PA |
3017 | /* Mark breakpoints uninserted in case something tries to delete a |
3018 | breakpoint while we delete the inferior's threads (which would | |
3019 | fail, since the inferior is long gone). */ | |
3020 | mark_breakpoints_out (); | |
3021 | ||
7f9f62ba PA |
3022 | if (!ptid_equal (ptid, null_ptid)) |
3023 | { | |
3024 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3025 | exit_inferior (pid); |
7f9f62ba PA |
3026 | } |
3027 | ||
f59f708a PA |
3028 | /* Note this wipes step-resume breakpoints, so needs to be done |
3029 | after exit_inferior, which ends up referencing the step-resume | |
3030 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3031 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3032 | |
c906108c SS |
3033 | registers_changed (); |
3034 | ||
c906108c SS |
3035 | reopen_exec_file (); |
3036 | reinit_frame_cache (); | |
3037 | ||
9a4105ab AC |
3038 | if (deprecated_detach_hook) |
3039 | deprecated_detach_hook (); | |
c906108c SS |
3040 | } |
3041 | \f | |
fd0a2a6f MK |
3042 | /* Convert a normal process ID to a string. Returns the string in a |
3043 | static buffer. */ | |
c906108c SS |
3044 | |
3045 | char * | |
39f77062 | 3046 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3047 | { |
fd0a2a6f | 3048 | static char buf[32]; |
c906108c | 3049 | |
5fff8fc0 | 3050 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3051 | return buf; |
3052 | } | |
3053 | ||
2c0b251b | 3054 | static char * |
770234d3 | 3055 | default_pid_to_str (struct target_ops *ops, ptid_t ptid) |
117de6a9 PA |
3056 | { |
3057 | return normal_pid_to_str (ptid); | |
3058 | } | |
3059 | ||
9b4eba8e HZ |
3060 | /* Error-catcher for target_find_memory_regions. */ |
3061 | static int | |
2e73927c TT |
3062 | dummy_find_memory_regions (struct target_ops *self, |
3063 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3064 | { |
9b4eba8e | 3065 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3066 | return 0; |
3067 | } | |
3068 | ||
9b4eba8e HZ |
3069 | /* Error-catcher for target_make_corefile_notes. */ |
3070 | static char * | |
fc6691b2 TT |
3071 | dummy_make_corefile_notes (struct target_ops *self, |
3072 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3073 | { |
9b4eba8e | 3074 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3075 | return NULL; |
3076 | } | |
3077 | ||
c906108c SS |
3078 | /* Set up the handful of non-empty slots needed by the dummy target |
3079 | vector. */ | |
3080 | ||
3081 | static void | |
fba45db2 | 3082 | init_dummy_target (void) |
c906108c SS |
3083 | { |
3084 | dummy_target.to_shortname = "None"; | |
3085 | dummy_target.to_longname = "None"; | |
3086 | dummy_target.to_doc = ""; | |
03583c20 UW |
3087 | dummy_target.to_supports_disable_randomization |
3088 | = find_default_supports_disable_randomization; | |
c906108c | 3089 | dummy_target.to_stratum = dummy_stratum; |
555bbdeb TT |
3090 | dummy_target.to_has_all_memory = return_zero; |
3091 | dummy_target.to_has_memory = return_zero; | |
3092 | dummy_target.to_has_stack = return_zero; | |
3093 | dummy_target.to_has_registers = return_zero; | |
3094 | dummy_target.to_has_execution = return_zero_has_execution; | |
c906108c | 3095 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3096 | |
3097 | install_dummy_methods (&dummy_target); | |
c906108c | 3098 | } |
c906108c | 3099 | \f |
c906108c | 3100 | static void |
fba45db2 | 3101 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3102 | { |
3103 | debug_target.to_open (args, from_tty); | |
3104 | ||
96baa820 | 3105 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3106 | } |
3107 | ||
f1c07ab0 | 3108 | void |
460014f5 | 3109 | target_close (struct target_ops *targ) |
f1c07ab0 | 3110 | { |
7fdc1521 TT |
3111 | gdb_assert (!target_is_pushed (targ)); |
3112 | ||
f1c07ab0 | 3113 | if (targ->to_xclose != NULL) |
460014f5 | 3114 | targ->to_xclose (targ); |
f1c07ab0 | 3115 | else if (targ->to_close != NULL) |
de90e03d | 3116 | targ->to_close (targ); |
947b8855 PA |
3117 | |
3118 | if (targetdebug) | |
460014f5 | 3119 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3120 | } |
3121 | ||
28439f5e PA |
3122 | int |
3123 | target_thread_alive (ptid_t ptid) | |
c906108c | 3124 | { |
cbffc065 | 3125 | int retval; |
28439f5e | 3126 | |
cbffc065 TT |
3127 | retval = current_target.to_thread_alive (¤t_target, ptid); |
3128 | if (targetdebug) | |
3129 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3130 | ptid_get_pid (ptid), retval); | |
28439f5e | 3131 | |
cbffc065 | 3132 | return retval; |
28439f5e PA |
3133 | } |
3134 | ||
3135 | void | |
3136 | target_find_new_threads (void) | |
3137 | { | |
09b0dc2b TT |
3138 | current_target.to_find_new_threads (¤t_target); |
3139 | if (targetdebug) | |
3140 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
c906108c SS |
3141 | } |
3142 | ||
d914c394 SS |
3143 | void |
3144 | target_stop (ptid_t ptid) | |
3145 | { | |
3146 | if (!may_stop) | |
3147 | { | |
3148 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3149 | return; | |
3150 | } | |
3151 | ||
1eab8a48 | 3152 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3153 | } |
3154 | ||
c906108c | 3155 | static void |
f045800c | 3156 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3157 | { |
f045800c | 3158 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3159 | |
28439f5e | 3160 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3161 | } |
3162 | ||
09826ec5 PA |
3163 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3164 | result. The LIST incoming argument is released. */ | |
3165 | ||
3166 | static char * | |
3167 | str_comma_list_concat_elem (char *list, const char *elem) | |
3168 | { | |
3169 | if (list == NULL) | |
3170 | return xstrdup (elem); | |
3171 | else | |
3172 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3173 | } | |
3174 | ||
3175 | /* Helper for target_options_to_string. If OPT is present in | |
3176 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3177 | Returns the new resulting string. OPT is removed from | |
3178 | TARGET_OPTIONS. */ | |
3179 | ||
3180 | static char * | |
3181 | do_option (int *target_options, char *ret, | |
3182 | int opt, char *opt_str) | |
3183 | { | |
3184 | if ((*target_options & opt) != 0) | |
3185 | { | |
3186 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3187 | *target_options &= ~opt; | |
3188 | } | |
3189 | ||
3190 | return ret; | |
3191 | } | |
3192 | ||
3193 | char * | |
3194 | target_options_to_string (int target_options) | |
3195 | { | |
3196 | char *ret = NULL; | |
3197 | ||
3198 | #define DO_TARG_OPTION(OPT) \ | |
3199 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3200 | ||
3201 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3202 | ||
3203 | if (target_options != 0) | |
3204 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3205 | ||
3206 | if (ret == NULL) | |
3207 | ret = xstrdup (""); | |
3208 | return ret; | |
3209 | } | |
3210 | ||
bf0c5130 | 3211 | static void |
56be3814 UW |
3212 | debug_print_register (const char * func, |
3213 | struct regcache *regcache, int regno) | |
bf0c5130 | 3214 | { |
f8d29908 | 3215 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3216 | |
bf0c5130 | 3217 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3218 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3219 | && gdbarch_register_name (gdbarch, regno) != NULL |
3220 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3221 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3222 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3223 | else |
3224 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3225 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3226 | { |
e17a4113 | 3227 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3228 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3229 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3230 | |
0ff58721 | 3231 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3232 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3233 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3234 | { |
3235 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3236 | } | |
81c4a259 | 3237 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3238 | { |
e17a4113 | 3239 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3240 | |
0b1553bc UW |
3241 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3242 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3243 | } |
3244 | } | |
3245 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3246 | } | |
3247 | ||
28439f5e PA |
3248 | void |
3249 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3250 | { |
ad5989bd TT |
3251 | current_target.to_fetch_registers (¤t_target, regcache, regno); |
3252 | if (targetdebug) | |
3253 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
3254 | } |
3255 | ||
28439f5e PA |
3256 | void |
3257 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3258 | { |
28439f5e | 3259 | struct target_ops *t; |
5d502164 | 3260 | |
d914c394 SS |
3261 | if (!may_write_registers) |
3262 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3263 | ||
6b84065d TT |
3264 | current_target.to_store_registers (¤t_target, regcache, regno); |
3265 | if (targetdebug) | |
28439f5e | 3266 | { |
6b84065d | 3267 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3268 | } |
c906108c SS |
3269 | } |
3270 | ||
dc146f7c VP |
3271 | int |
3272 | target_core_of_thread (ptid_t ptid) | |
3273 | { | |
9e538d0d | 3274 | int retval = current_target.to_core_of_thread (¤t_target, ptid); |
dc146f7c | 3275 | |
9e538d0d TT |
3276 | if (targetdebug) |
3277 | fprintf_unfiltered (gdb_stdlog, | |
3278 | "target_core_of_thread (%d) = %d\n", | |
3279 | ptid_get_pid (ptid), retval); | |
3280 | return retval; | |
dc146f7c VP |
3281 | } |
3282 | ||
936d2992 PA |
3283 | int |
3284 | simple_verify_memory (struct target_ops *ops, | |
3285 | const gdb_byte *data, CORE_ADDR lma, ULONGEST size) | |
3286 | { | |
3287 | LONGEST total_xfered = 0; | |
3288 | ||
3289 | while (total_xfered < size) | |
3290 | { | |
3291 | ULONGEST xfered_len; | |
3292 | enum target_xfer_status status; | |
3293 | gdb_byte buf[1024]; | |
3294 | ULONGEST howmuch = min (sizeof (buf), size - total_xfered); | |
3295 | ||
3296 | status = target_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
3297 | buf, NULL, lma + total_xfered, howmuch, | |
3298 | &xfered_len); | |
3299 | if (status == TARGET_XFER_OK | |
3300 | && memcmp (data + total_xfered, buf, xfered_len) == 0) | |
3301 | { | |
3302 | total_xfered += xfered_len; | |
3303 | QUIT; | |
3304 | } | |
3305 | else | |
3306 | return 0; | |
3307 | } | |
3308 | return 1; | |
3309 | } | |
3310 | ||
3311 | /* Default implementation of memory verification. */ | |
3312 | ||
3313 | static int | |
3314 | default_verify_memory (struct target_ops *self, | |
3315 | const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3316 | { | |
3317 | /* Start over from the top of the target stack. */ | |
3318 | return simple_verify_memory (current_target.beneath, | |
3319 | data, memaddr, size); | |
3320 | } | |
3321 | ||
4a5e7a5b PA |
3322 | int |
3323 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3324 | { | |
eb276a6b TT |
3325 | int retval = current_target.to_verify_memory (¤t_target, |
3326 | data, memaddr, size); | |
5d502164 | 3327 | |
eb276a6b TT |
3328 | if (targetdebug) |
3329 | fprintf_unfiltered (gdb_stdlog, | |
3330 | "target_verify_memory (%s, %s) = %d\n", | |
3331 | paddress (target_gdbarch (), memaddr), | |
3332 | pulongest (size), | |
3333 | retval); | |
3334 | return retval; | |
4a5e7a5b PA |
3335 | } |
3336 | ||
9c06b0b4 TJB |
3337 | /* The documentation for this function is in its prototype declaration in |
3338 | target.h. */ | |
3339 | ||
3340 | int | |
3341 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3342 | { | |
cd4ae029 | 3343 | int ret; |
9c06b0b4 | 3344 | |
cd4ae029 TT |
3345 | ret = current_target.to_insert_mask_watchpoint (¤t_target, |
3346 | addr, mask, rw); | |
9c06b0b4 | 3347 | |
cd4ae029 TT |
3348 | if (targetdebug) |
3349 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3350 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", |
cd4ae029 TT |
3351 | core_addr_to_string (addr), |
3352 | core_addr_to_string (mask), rw, ret); | |
3353 | ||
3354 | return ret; | |
9c06b0b4 TJB |
3355 | } |
3356 | ||
3357 | /* The documentation for this function is in its prototype declaration in | |
3358 | target.h. */ | |
3359 | ||
3360 | int | |
3361 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3362 | { | |
8b1c364c | 3363 | int ret; |
9c06b0b4 | 3364 | |
8b1c364c TT |
3365 | ret = current_target.to_remove_mask_watchpoint (¤t_target, |
3366 | addr, mask, rw); | |
9c06b0b4 | 3367 | |
8b1c364c TT |
3368 | if (targetdebug) |
3369 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3370 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", |
8b1c364c TT |
3371 | core_addr_to_string (addr), |
3372 | core_addr_to_string (mask), rw, ret); | |
9c06b0b4 | 3373 | |
8b1c364c | 3374 | return ret; |
9c06b0b4 TJB |
3375 | } |
3376 | ||
3377 | /* The documentation for this function is in its prototype declaration | |
3378 | in target.h. */ | |
3379 | ||
3380 | int | |
3381 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3382 | { | |
6c7e5e5c TT |
3383 | return current_target.to_masked_watch_num_registers (¤t_target, |
3384 | addr, mask); | |
9c06b0b4 TJB |
3385 | } |
3386 | ||
f1310107 TJB |
3387 | /* The documentation for this function is in its prototype declaration |
3388 | in target.h. */ | |
3389 | ||
3390 | int | |
3391 | target_ranged_break_num_registers (void) | |
3392 | { | |
a134316b | 3393 | return current_target.to_ranged_break_num_registers (¤t_target); |
f1310107 TJB |
3394 | } |
3395 | ||
02d27625 MM |
3396 | /* See target.h. */ |
3397 | ||
02d27625 MM |
3398 | struct btrace_target_info * |
3399 | target_enable_btrace (ptid_t ptid) | |
3400 | { | |
6dc7fcf4 | 3401 | return current_target.to_enable_btrace (¤t_target, ptid); |
02d27625 MM |
3402 | } |
3403 | ||
3404 | /* See target.h. */ | |
3405 | ||
3406 | void | |
3407 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3408 | { | |
8dc292d3 | 3409 | current_target.to_disable_btrace (¤t_target, btinfo); |
02d27625 MM |
3410 | } |
3411 | ||
3412 | /* See target.h. */ | |
3413 | ||
3414 | void | |
3415 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
3416 | { | |
9ace480d | 3417 | current_target.to_teardown_btrace (¤t_target, btinfo); |
02d27625 MM |
3418 | } |
3419 | ||
3420 | /* See target.h. */ | |
3421 | ||
969c39fb MM |
3422 | enum btrace_error |
3423 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
3424 | struct btrace_target_info *btinfo, | |
02d27625 MM |
3425 | enum btrace_read_type type) |
3426 | { | |
eb5b20d4 | 3427 | return current_target.to_read_btrace (¤t_target, btrace, btinfo, type); |
02d27625 MM |
3428 | } |
3429 | ||
d02ed0bb MM |
3430 | /* See target.h. */ |
3431 | ||
7c1687a9 MM |
3432 | void |
3433 | target_stop_recording (void) | |
3434 | { | |
ee97f592 | 3435 | current_target.to_stop_recording (¤t_target); |
7c1687a9 MM |
3436 | } |
3437 | ||
3438 | /* See target.h. */ | |
3439 | ||
d02ed0bb MM |
3440 | void |
3441 | target_info_record (void) | |
3442 | { | |
3443 | struct target_ops *t; | |
3444 | ||
3445 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3446 | if (t->to_info_record != NULL) | |
3447 | { | |
630d6a4a | 3448 | t->to_info_record (t); |
d02ed0bb MM |
3449 | return; |
3450 | } | |
3451 | ||
3452 | tcomplain (); | |
3453 | } | |
3454 | ||
3455 | /* See target.h. */ | |
3456 | ||
3457 | void | |
85e1311a | 3458 | target_save_record (const char *filename) |
d02ed0bb | 3459 | { |
f09e2107 | 3460 | current_target.to_save_record (¤t_target, filename); |
d02ed0bb MM |
3461 | } |
3462 | ||
3463 | /* See target.h. */ | |
3464 | ||
3465 | int | |
3466 | target_supports_delete_record (void) | |
3467 | { | |
3468 | struct target_ops *t; | |
3469 | ||
3470 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3471 | if (t->to_delete_record != NULL) | |
3472 | return 1; | |
3473 | ||
3474 | return 0; | |
3475 | } | |
3476 | ||
3477 | /* See target.h. */ | |
3478 | ||
3479 | void | |
3480 | target_delete_record (void) | |
3481 | { | |
07366925 | 3482 | current_target.to_delete_record (¤t_target); |
d02ed0bb MM |
3483 | } |
3484 | ||
3485 | /* See target.h. */ | |
3486 | ||
3487 | int | |
3488 | target_record_is_replaying (void) | |
3489 | { | |
dd2e9d25 | 3490 | return current_target.to_record_is_replaying (¤t_target); |
d02ed0bb MM |
3491 | } |
3492 | ||
3493 | /* See target.h. */ | |
3494 | ||
3495 | void | |
3496 | target_goto_record_begin (void) | |
3497 | { | |
671e76cc | 3498 | current_target.to_goto_record_begin (¤t_target); |
d02ed0bb MM |
3499 | } |
3500 | ||
3501 | /* See target.h. */ | |
3502 | ||
3503 | void | |
3504 | target_goto_record_end (void) | |
3505 | { | |
e9179bb3 | 3506 | current_target.to_goto_record_end (¤t_target); |
d02ed0bb MM |
3507 | } |
3508 | ||
3509 | /* See target.h. */ | |
3510 | ||
3511 | void | |
3512 | target_goto_record (ULONGEST insn) | |
3513 | { | |
05969c84 | 3514 | current_target.to_goto_record (¤t_target, insn); |
d02ed0bb MM |
3515 | } |
3516 | ||
67c86d06 MM |
3517 | /* See target.h. */ |
3518 | ||
3519 | void | |
3520 | target_insn_history (int size, int flags) | |
3521 | { | |
3679abfa | 3522 | current_target.to_insn_history (¤t_target, size, flags); |
67c86d06 MM |
3523 | } |
3524 | ||
3525 | /* See target.h. */ | |
3526 | ||
3527 | void | |
3528 | target_insn_history_from (ULONGEST from, int size, int flags) | |
3529 | { | |
8444ab58 | 3530 | current_target.to_insn_history_from (¤t_target, from, size, flags); |
67c86d06 MM |
3531 | } |
3532 | ||
3533 | /* See target.h. */ | |
3534 | ||
3535 | void | |
3536 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3537 | { | |
c29302cc | 3538 | current_target.to_insn_history_range (¤t_target, begin, end, flags); |
67c86d06 MM |
3539 | } |
3540 | ||
15984c13 MM |
3541 | /* See target.h. */ |
3542 | ||
3543 | void | |
3544 | target_call_history (int size, int flags) | |
3545 | { | |
170049d4 | 3546 | current_target.to_call_history (¤t_target, size, flags); |
15984c13 MM |
3547 | } |
3548 | ||
3549 | /* See target.h. */ | |
3550 | ||
3551 | void | |
3552 | target_call_history_from (ULONGEST begin, int size, int flags) | |
3553 | { | |
16fc27d6 | 3554 | current_target.to_call_history_from (¤t_target, begin, size, flags); |
15984c13 MM |
3555 | } |
3556 | ||
3557 | /* See target.h. */ | |
3558 | ||
3559 | void | |
3560 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
3561 | { | |
115d9817 | 3562 | current_target.to_call_history_range (¤t_target, begin, end, flags); |
15984c13 MM |
3563 | } |
3564 | ||
c906108c | 3565 | static void |
f32dbf8c | 3566 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 3567 | { |
f32dbf8c | 3568 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 3569 | |
96baa820 | 3570 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
3571 | } |
3572 | ||
ea001bdc MM |
3573 | /* See target.h. */ |
3574 | ||
3575 | const struct frame_unwind * | |
3576 | target_get_unwinder (void) | |
3577 | { | |
ac01945b | 3578 | return current_target.to_get_unwinder (¤t_target); |
ea001bdc MM |
3579 | } |
3580 | ||
3581 | /* See target.h. */ | |
3582 | ||
3583 | const struct frame_unwind * | |
3584 | target_get_tailcall_unwinder (void) | |
3585 | { | |
ac01945b | 3586 | return current_target.to_get_tailcall_unwinder (¤t_target); |
ea001bdc MM |
3587 | } |
3588 | ||
c0eca49f | 3589 | /* Default implementation of to_decr_pc_after_break. */ |
118e6252 | 3590 | |
c0eca49f TT |
3591 | static CORE_ADDR |
3592 | default_target_decr_pc_after_break (struct target_ops *ops, | |
118e6252 MM |
3593 | struct gdbarch *gdbarch) |
3594 | { | |
118e6252 MM |
3595 | return gdbarch_decr_pc_after_break (gdbarch); |
3596 | } | |
3597 | ||
3598 | /* See target.h. */ | |
3599 | ||
3600 | CORE_ADDR | |
3601 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
3602 | { | |
c0eca49f | 3603 | return current_target.to_decr_pc_after_break (¤t_target, gdbarch); |
118e6252 MM |
3604 | } |
3605 | ||
c906108c | 3606 | static void |
fba45db2 | 3607 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
3608 | { |
3609 | debug_target.to_files_info (target); | |
3610 | ||
96baa820 | 3611 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
3612 | } |
3613 | ||
3614 | static int | |
3db08215 | 3615 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 3616 | struct bp_target_info *bp_tgt) |
c906108c SS |
3617 | { |
3618 | int retval; | |
3619 | ||
6b84065d | 3620 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 3621 | |
96baa820 | 3622 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
3623 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
3624 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 3625 | (unsigned long) retval); |
c906108c SS |
3626 | return retval; |
3627 | } | |
3628 | ||
3629 | static int | |
3db08215 | 3630 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 3631 | struct bp_target_info *bp_tgt) |
c906108c SS |
3632 | { |
3633 | int retval; | |
3634 | ||
6b84065d | 3635 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 3636 | |
96baa820 | 3637 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
3638 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
3639 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 3640 | (unsigned long) retval); |
c906108c SS |
3641 | return retval; |
3642 | } | |
3643 | ||
ccaa32c7 | 3644 | static int |
5461485a TT |
3645 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
3646 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
3647 | { |
3648 | int retval; | |
3649 | ||
5461485a TT |
3650 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
3651 | type, cnt, from_tty); | |
ccaa32c7 GS |
3652 | |
3653 | fprintf_unfiltered (gdb_stdlog, | |
3654 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
3655 | (unsigned long) type, | |
3656 | (unsigned long) cnt, | |
3657 | (unsigned long) from_tty, | |
3658 | (unsigned long) retval); | |
3659 | return retval; | |
3660 | } | |
3661 | ||
e0d24f8d | 3662 | static int |
31568a15 TT |
3663 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
3664 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
3665 | { |
3666 | CORE_ADDR retval; | |
3667 | ||
31568a15 TT |
3668 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
3669 | addr, len); | |
e0d24f8d WZ |
3670 | |
3671 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3672 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
3673 | core_addr_to_string (addr), (unsigned long) len, | |
3674 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
3675 | return retval; |
3676 | } | |
3677 | ||
0cf6dd15 | 3678 | static int |
c3a5ff89 TT |
3679 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
3680 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
3681 | struct expression *cond) |
3682 | { | |
3683 | int retval; | |
3684 | ||
c3a5ff89 TT |
3685 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
3686 | addr, len, | |
3e43a32a | 3687 | rw, cond); |
0cf6dd15 TJB |
3688 | |
3689 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
3690 | "target_can_accel_watchpoint_condition " |
3691 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
3692 | core_addr_to_string (addr), len, rw, |
3693 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
3694 | return retval; |
3695 | } | |
3696 | ||
ccaa32c7 | 3697 | static int |
6a109b6b | 3698 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
3699 | { |
3700 | int retval; | |
3701 | ||
6a109b6b | 3702 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
3703 | |
3704 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 3705 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
3706 | (unsigned long) retval); |
3707 | return retval; | |
3708 | } | |
3709 | ||
4aa7a7f5 JJ |
3710 | static int |
3711 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 3712 | { |
4aa7a7f5 | 3713 | int retval; |
ccaa32c7 | 3714 | |
4aa7a7f5 | 3715 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
3716 | |
3717 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3718 | "target_stopped_data_address ([%s]) = %ld\n", |
3719 | core_addr_to_string (*addr), | |
4aa7a7f5 | 3720 | (unsigned long)retval); |
ccaa32c7 GS |
3721 | return retval; |
3722 | } | |
3723 | ||
5009afc5 AS |
3724 | static int |
3725 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
3726 | CORE_ADDR addr, | |
3727 | CORE_ADDR start, int length) | |
3728 | { | |
3729 | int retval; | |
3730 | ||
3731 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
3732 | start, length); | |
3733 | ||
3734 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
3735 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
3736 | core_addr_to_string (addr), core_addr_to_string (start), | |
3737 | length, retval); | |
5009afc5 AS |
3738 | return retval; |
3739 | } | |
3740 | ||
ccaa32c7 | 3741 | static int |
23a26771 TT |
3742 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
3743 | struct gdbarch *gdbarch, | |
a6d9a66e | 3744 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
3745 | { |
3746 | int retval; | |
3747 | ||
23a26771 TT |
3748 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
3749 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
3750 | |
3751 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3752 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
3753 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
3754 | (unsigned long) retval); |
3755 | return retval; | |
3756 | } | |
3757 | ||
3758 | static int | |
a64dc96c TT |
3759 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
3760 | struct gdbarch *gdbarch, | |
a6d9a66e | 3761 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
3762 | { |
3763 | int retval; | |
3764 | ||
a64dc96c TT |
3765 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
3766 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
3767 | |
3768 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3769 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
3770 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
3771 | (unsigned long) retval); |
3772 | return retval; | |
3773 | } | |
3774 | ||
3775 | static int | |
7bb99c53 TT |
3776 | debug_to_insert_watchpoint (struct target_ops *self, |
3777 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 3778 | struct expression *cond) |
ccaa32c7 GS |
3779 | { |
3780 | int retval; | |
3781 | ||
7bb99c53 TT |
3782 | retval = debug_target.to_insert_watchpoint (&debug_target, |
3783 | addr, len, type, cond); | |
ccaa32c7 GS |
3784 | |
3785 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3786 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
3787 | core_addr_to_string (addr), len, type, | |
3788 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
3789 | return retval; |
3790 | } | |
3791 | ||
3792 | static int | |
11b5219a TT |
3793 | debug_to_remove_watchpoint (struct target_ops *self, |
3794 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 3795 | struct expression *cond) |
ccaa32c7 GS |
3796 | { |
3797 | int retval; | |
3798 | ||
11b5219a TT |
3799 | retval = debug_target.to_remove_watchpoint (&debug_target, |
3800 | addr, len, type, cond); | |
ccaa32c7 GS |
3801 | |
3802 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3803 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
3804 | core_addr_to_string (addr), len, type, | |
3805 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
3806 | return retval; |
3807 | } | |
3808 | ||
c906108c | 3809 | static void |
c42bf286 | 3810 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 3811 | { |
c42bf286 | 3812 | debug_target.to_terminal_init (&debug_target); |
c906108c | 3813 | |
96baa820 | 3814 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
3815 | } |
3816 | ||
3817 | static void | |
d2f640d4 | 3818 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 3819 | { |
d2f640d4 | 3820 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 3821 | |
96baa820 | 3822 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
3823 | } |
3824 | ||
3825 | static void | |
2e1e1a19 | 3826 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 3827 | { |
2e1e1a19 | 3828 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 3829 | |
96baa820 | 3830 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
3831 | } |
3832 | ||
3833 | static void | |
e3594fd1 | 3834 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 3835 | { |
e3594fd1 | 3836 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 3837 | |
96baa820 | 3838 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
3839 | } |
3840 | ||
a790ad35 | 3841 | static void |
ae3bd431 | 3842 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 3843 | { |
ae3bd431 | 3844 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
3845 | |
3846 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
3847 | } | |
3848 | ||
c906108c | 3849 | static void |
0a4f40a2 TT |
3850 | debug_to_terminal_info (struct target_ops *self, |
3851 | const char *arg, int from_tty) | |
c906108c | 3852 | { |
0a4f40a2 | 3853 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 3854 | |
96baa820 | 3855 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
3856 | from_tty); |
3857 | } | |
3858 | ||
c906108c | 3859 | static void |
71a9f134 | 3860 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 3861 | { |
71a9f134 | 3862 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 3863 | |
96baa820 | 3864 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
3865 | } |
3866 | ||
c906108c | 3867 | static void |
2e97a79e | 3868 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 3869 | { |
2e97a79e | 3870 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 3871 | |
96baa820 | 3872 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 3873 | ptid_get_pid (ptid)); |
c906108c SS |
3874 | } |
3875 | ||
77b06cd7 | 3876 | static int |
a863b201 | 3877 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3878 | { |
77b06cd7 TJB |
3879 | int retval; |
3880 | ||
a863b201 | 3881 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
3882 | |
3883 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
3884 | pid, retval); | |
c906108c | 3885 | |
77b06cd7 | 3886 | return retval; |
c906108c SS |
3887 | } |
3888 | ||
3889 | static int | |
973fc227 | 3890 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3891 | { |
c5aa993b | 3892 | int retval; |
c906108c | 3893 | |
973fc227 | 3894 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 3895 | |
96baa820 | 3896 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 3897 | pid, retval); |
c906108c SS |
3898 | |
3899 | return retval; | |
3900 | } | |
3901 | ||
77b06cd7 | 3902 | static int |
3ecc7da0 | 3903 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3904 | { |
77b06cd7 TJB |
3905 | int retval; |
3906 | ||
3ecc7da0 | 3907 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 3908 | |
77b06cd7 TJB |
3909 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
3910 | pid, retval); | |
3911 | ||
3912 | return retval; | |
c906108c SS |
3913 | } |
3914 | ||
3915 | static int | |
e98cf0cd | 3916 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 3917 | { |
c5aa993b | 3918 | int retval; |
c906108c | 3919 | |
e98cf0cd | 3920 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 3921 | |
96baa820 | 3922 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 3923 | pid, retval); |
c906108c SS |
3924 | |
3925 | return retval; | |
3926 | } | |
3927 | ||
77b06cd7 | 3928 | static int |
ba025e51 | 3929 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 3930 | { |
77b06cd7 TJB |
3931 | int retval; |
3932 | ||
ba025e51 | 3933 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 3934 | |
77b06cd7 TJB |
3935 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
3936 | pid, retval); | |
3937 | ||
3938 | return retval; | |
c906108c SS |
3939 | } |
3940 | ||
3941 | static int | |
758e29d2 | 3942 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 3943 | { |
c5aa993b | 3944 | int retval; |
c906108c | 3945 | |
758e29d2 | 3946 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 3947 | |
96baa820 | 3948 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 3949 | pid, retval); |
c906108c SS |
3950 | |
3951 | return retval; | |
3952 | } | |
3953 | ||
c906108c | 3954 | static int |
d796e1d6 TT |
3955 | debug_to_has_exited (struct target_ops *self, |
3956 | int pid, int wait_status, int *exit_status) | |
c906108c | 3957 | { |
c5aa993b | 3958 | int has_exited; |
c906108c | 3959 | |
d796e1d6 TT |
3960 | has_exited = debug_target.to_has_exited (&debug_target, |
3961 | pid, wait_status, exit_status); | |
c906108c | 3962 | |
96baa820 | 3963 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 3964 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
3965 | |
3966 | return has_exited; | |
3967 | } | |
3968 | ||
c906108c | 3969 | static int |
da82bd6b | 3970 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
3971 | { |
3972 | int retval; | |
3973 | ||
da82bd6b | 3974 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 3975 | |
96baa820 | 3976 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
3977 | |
3978 | return retval; | |
3979 | } | |
3980 | ||
c2250ad1 UW |
3981 | static struct gdbarch * |
3982 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3983 | { | |
3984 | struct gdbarch *retval; | |
3985 | ||
3986 | retval = debug_target.to_thread_architecture (ops, ptid); | |
3987 | ||
3e43a32a MS |
3988 | fprintf_unfiltered (gdb_stdlog, |
3989 | "target_thread_architecture (%s) = %s [%s]\n", | |
3990 | target_pid_to_str (ptid), | |
3991 | host_address_to_string (retval), | |
c2250ad1 UW |
3992 | gdbarch_bfd_arch_info (retval)->printable_name); |
3993 | return retval; | |
3994 | } | |
3995 | ||
c906108c | 3996 | static void |
1eab8a48 | 3997 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 3998 | { |
1eab8a48 | 3999 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4000 | |
94cc34af PA |
4001 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4002 | target_pid_to_str (ptid)); | |
c906108c SS |
4003 | } |
4004 | ||
96baa820 | 4005 | static void |
1aac633b | 4006 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4007 | struct ui_file *outbuf) |
96baa820 | 4008 | { |
1aac633b | 4009 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4010 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4011 | } | |
4012 | ||
c906108c | 4013 | static char * |
8dd27370 | 4014 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4015 | { |
c5aa993b | 4016 | char *exec_file; |
c906108c | 4017 | |
8dd27370 | 4018 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4019 | |
96baa820 | 4020 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4021 | pid, exec_file); |
c906108c SS |
4022 | |
4023 | return exec_file; | |
4024 | } | |
4025 | ||
c906108c | 4026 | static void |
fba45db2 | 4027 | setup_target_debug (void) |
c906108c SS |
4028 | { |
4029 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4030 | ||
4031 | current_target.to_open = debug_to_open; | |
c906108c | 4032 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4033 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c906108c SS |
4034 | current_target.to_files_info = debug_to_files_info; |
4035 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4036 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4037 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4038 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4039 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4040 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4041 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4042 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4043 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4044 | current_target.to_watchpoint_addr_within_range |
4045 | = debug_to_watchpoint_addr_within_range; | |
4046 | current_target.to_region_ok_for_hw_watchpoint | |
4047 | = debug_to_region_ok_for_hw_watchpoint; | |
4048 | current_target.to_can_accel_watchpoint_condition | |
4049 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4050 | current_target.to_terminal_init = debug_to_terminal_init; |
4051 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4052 | current_target.to_terminal_ours_for_output |
4053 | = debug_to_terminal_ours_for_output; | |
c906108c | 4054 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4055 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4056 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4057 | current_target.to_load = debug_to_load; |
c906108c | 4058 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4059 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4060 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4061 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4062 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4063 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4064 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4065 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4066 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4067 | current_target.to_stop = debug_to_stop; |
96baa820 | 4068 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4069 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4070 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4071 | } |
c906108c | 4072 | \f |
c5aa993b JM |
4073 | |
4074 | static char targ_desc[] = | |
3e43a32a MS |
4075 | "Names of targets and files being debugged.\nShows the entire \ |
4076 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4077 | core-file, and process, if any), as well as the symbol file name."; |
4078 | ||
a53f3625 TT |
4079 | static void |
4080 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4081 | { | |
4082 | error (_("\"monitor\" command not supported by this target.")); | |
4083 | } | |
4084 | ||
96baa820 JM |
4085 | static void |
4086 | do_monitor_command (char *cmd, | |
4087 | int from_tty) | |
4088 | { | |
96baa820 JM |
4089 | target_rcmd (cmd, gdb_stdtarg); |
4090 | } | |
4091 | ||
87680a14 JB |
4092 | /* Print the name of each layers of our target stack. */ |
4093 | ||
4094 | static void | |
4095 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4096 | { | |
4097 | struct target_ops *t; | |
4098 | ||
4099 | printf_filtered (_("The current target stack is:\n")); | |
4100 | ||
4101 | for (t = target_stack; t != NULL; t = t->beneath) | |
4102 | { | |
4103 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4104 | } | |
4105 | } | |
4106 | ||
c6ebd6cf VP |
4107 | /* Controls if async mode is permitted. */ |
4108 | int target_async_permitted = 0; | |
4109 | ||
4110 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4111 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4112 | static int target_async_permitted_1 = 0; |
4113 | ||
4114 | static void | |
9401a810 PA |
4115 | set_target_async_command (char *args, int from_tty, |
4116 | struct cmd_list_element *c) | |
c6ebd6cf | 4117 | { |
c35b1492 | 4118 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4119 | { |
4120 | target_async_permitted_1 = target_async_permitted; | |
4121 | error (_("Cannot change this setting while the inferior is running.")); | |
4122 | } | |
4123 | ||
4124 | target_async_permitted = target_async_permitted_1; | |
4125 | } | |
4126 | ||
4127 | static void | |
9401a810 PA |
4128 | show_target_async_command (struct ui_file *file, int from_tty, |
4129 | struct cmd_list_element *c, | |
4130 | const char *value) | |
c6ebd6cf | 4131 | { |
3e43a32a MS |
4132 | fprintf_filtered (file, |
4133 | _("Controlling the inferior in " | |
4134 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4135 | } |
4136 | ||
d914c394 SS |
4137 | /* Temporary copies of permission settings. */ |
4138 | ||
4139 | static int may_write_registers_1 = 1; | |
4140 | static int may_write_memory_1 = 1; | |
4141 | static int may_insert_breakpoints_1 = 1; | |
4142 | static int may_insert_tracepoints_1 = 1; | |
4143 | static int may_insert_fast_tracepoints_1 = 1; | |
4144 | static int may_stop_1 = 1; | |
4145 | ||
4146 | /* Make the user-set values match the real values again. */ | |
4147 | ||
4148 | void | |
4149 | update_target_permissions (void) | |
4150 | { | |
4151 | may_write_registers_1 = may_write_registers; | |
4152 | may_write_memory_1 = may_write_memory; | |
4153 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4154 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4155 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4156 | may_stop_1 = may_stop; | |
4157 | } | |
4158 | ||
4159 | /* The one function handles (most of) the permission flags in the same | |
4160 | way. */ | |
4161 | ||
4162 | static void | |
4163 | set_target_permissions (char *args, int from_tty, | |
4164 | struct cmd_list_element *c) | |
4165 | { | |
4166 | if (target_has_execution) | |
4167 | { | |
4168 | update_target_permissions (); | |
4169 | error (_("Cannot change this setting while the inferior is running.")); | |
4170 | } | |
4171 | ||
4172 | /* Make the real values match the user-changed values. */ | |
4173 | may_write_registers = may_write_registers_1; | |
4174 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4175 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4176 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4177 | may_stop = may_stop_1; | |
4178 | update_observer_mode (); | |
4179 | } | |
4180 | ||
4181 | /* Set memory write permission independently of observer mode. */ | |
4182 | ||
4183 | static void | |
4184 | set_write_memory_permission (char *args, int from_tty, | |
4185 | struct cmd_list_element *c) | |
4186 | { | |
4187 | /* Make the real values match the user-changed values. */ | |
4188 | may_write_memory = may_write_memory_1; | |
4189 | update_observer_mode (); | |
4190 | } | |
4191 | ||
4192 | ||
c906108c | 4193 | void |
fba45db2 | 4194 | initialize_targets (void) |
c906108c SS |
4195 | { |
4196 | init_dummy_target (); | |
4197 | push_target (&dummy_target); | |
4198 | ||
4199 | add_info ("target", target_info, targ_desc); | |
4200 | add_info ("files", target_info, targ_desc); | |
4201 | ||
ccce17b0 | 4202 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4203 | Set target debugging."), _("\ |
4204 | Show target debugging."), _("\ | |
333dabeb DJ |
4205 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4206 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4207 | command."), |
ccce17b0 YQ |
4208 | NULL, |
4209 | show_targetdebug, | |
4210 | &setdebuglist, &showdebuglist); | |
3a11626d | 4211 | |
2bc416ba | 4212 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4213 | &trust_readonly, _("\ |
4214 | Set mode for reading from readonly sections."), _("\ | |
4215 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4216 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4217 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4218 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4219 | NULL, |
920d2a44 | 4220 | show_trust_readonly, |
e707bbc2 | 4221 | &setlist, &showlist); |
96baa820 JM |
4222 | |
4223 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4224 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4225 | |
87680a14 JB |
4226 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4227 | _("Print the name of each layer of the internal target stack."), | |
4228 | &maintenanceprintlist); | |
4229 | ||
c6ebd6cf VP |
4230 | add_setshow_boolean_cmd ("target-async", no_class, |
4231 | &target_async_permitted_1, _("\ | |
4232 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4233 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4234 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
4235 | set_target_async_command, |
4236 | show_target_async_command, | |
c6ebd6cf VP |
4237 | &setlist, |
4238 | &showlist); | |
4239 | ||
d914c394 SS |
4240 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4241 | &may_write_registers_1, _("\ | |
4242 | Set permission to write into registers."), _("\ | |
4243 | Show permission to write into registers."), _("\ | |
4244 | When this permission is on, GDB may write into the target's registers.\n\ | |
4245 | Otherwise, any sort of write attempt will result in an error."), | |
4246 | set_target_permissions, NULL, | |
4247 | &setlist, &showlist); | |
4248 | ||
4249 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4250 | &may_write_memory_1, _("\ | |
4251 | Set permission to write into target memory."), _("\ | |
4252 | Show permission to write into target memory."), _("\ | |
4253 | When this permission is on, GDB may write into the target's memory.\n\ | |
4254 | Otherwise, any sort of write attempt will result in an error."), | |
4255 | set_write_memory_permission, NULL, | |
4256 | &setlist, &showlist); | |
4257 | ||
4258 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4259 | &may_insert_breakpoints_1, _("\ | |
4260 | Set permission to insert breakpoints in the target."), _("\ | |
4261 | Show permission to insert breakpoints in the target."), _("\ | |
4262 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4263 | Otherwise, any sort of insertion attempt will result in an error."), | |
4264 | set_target_permissions, NULL, | |
4265 | &setlist, &showlist); | |
4266 | ||
4267 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4268 | &may_insert_tracepoints_1, _("\ | |
4269 | Set permission to insert tracepoints in the target."), _("\ | |
4270 | Show permission to insert tracepoints in the target."), _("\ | |
4271 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4272 | Otherwise, any sort of insertion attempt will result in an error."), | |
4273 | set_target_permissions, NULL, | |
4274 | &setlist, &showlist); | |
4275 | ||
4276 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4277 | &may_insert_fast_tracepoints_1, _("\ | |
4278 | Set permission to insert fast tracepoints in the target."), _("\ | |
4279 | Show permission to insert fast tracepoints in the target."), _("\ | |
4280 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4281 | Otherwise, any sort of insertion attempt will result in an error."), | |
4282 | set_target_permissions, NULL, | |
4283 | &setlist, &showlist); | |
4284 | ||
4285 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4286 | &may_stop_1, _("\ | |
4287 | Set permission to interrupt or signal the target."), _("\ | |
4288 | Show permission to interrupt or signal the target."), _("\ | |
4289 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4290 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4291 | set_target_permissions, NULL, | |
4292 | &setlist, &showlist); | |
6a3cb8e8 PA |
4293 | |
4294 | add_setshow_boolean_cmd ("auto-connect-native-target", class_support, | |
4295 | &auto_connect_native_target, _("\ | |
4296 | Set whether GDB may automatically connect to the native target."), _("\ | |
4297 | Show whether GDB may automatically connect to the native target."), _("\ | |
4298 | When on, and GDB is not connected to a target yet, GDB\n\ | |
4299 | attempts \"run\" and other commands with the native target."), | |
4300 | NULL, show_auto_connect_native_target, | |
4301 | &setlist, &showlist); | |
c906108c | 4302 | } |