Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1990-2014 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <errno.h> | |
0e9f083f | 24 | #include <string.h> |
c906108c | 25 | #include "target.h" |
68c765e2 | 26 | #include "target-dcache.h" |
c906108c SS |
27 | #include "gdbcmd.h" |
28 | #include "symtab.h" | |
29 | #include "inferior.h" | |
30 | #include "bfd.h" | |
31 | #include "symfile.h" | |
32 | #include "objfiles.h" | |
4930751a | 33 | #include "dcache.h" |
c906108c | 34 | #include <signal.h> |
4e052eda | 35 | #include "regcache.h" |
0088c768 | 36 | #include "gdb_assert.h" |
b6591e8b | 37 | #include "gdbcore.h" |
9e35dae4 | 38 | #include "exceptions.h" |
424163ea | 39 | #include "target-descriptions.h" |
e1ac3328 | 40 | #include "gdbthread.h" |
b9db4ced | 41 | #include "solib.h" |
07b82ea5 | 42 | #include "exec.h" |
edb3359d | 43 | #include "inline-frame.h" |
2f4d8875 | 44 | #include "tracepoint.h" |
7313baad | 45 | #include "gdb/fileio.h" |
8ffcbaaf | 46 | #include "agent.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
0a4f40a2 | 50 | static void default_terminal_info (struct target_ops *, const char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
31568a15 TT |
55 | static int default_region_ok_for_hw_watchpoint (struct target_ops *, |
56 | CORE_ADDR, int); | |
e0d24f8d | 57 | |
a53f3625 TT |
58 | static void default_rcmd (struct target_ops *, char *, struct ui_file *); |
59 | ||
4229b31d TT |
60 | static ptid_t default_get_ada_task_ptid (struct target_ops *self, |
61 | long lwp, long tid); | |
62 | ||
098dba18 TT |
63 | static int default_follow_fork (struct target_ops *self, int follow_child, |
64 | int detach_fork); | |
65 | ||
c25c4a8b | 66 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 67 | |
a14ed312 | 68 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 69 | |
a14ed312 | 70 | static int return_zero (void); |
c906108c | 71 | |
a14ed312 | 72 | void target_ignore (void); |
c906108c | 73 | |
a14ed312 | 74 | static void target_command (char *, int); |
c906108c | 75 | |
a14ed312 | 76 | static struct target_ops *find_default_run_target (char *); |
c906108c | 77 | |
4ac248ca YQ |
78 | static target_xfer_partial_ftype default_xfer_partial; |
79 | ||
c2250ad1 UW |
80 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
81 | ptid_t ptid); | |
82 | ||
0b5a2719 TT |
83 | static int dummy_find_memory_regions (struct target_ops *self, |
84 | find_memory_region_ftype ignore1, | |
85 | void *ignore2); | |
86 | ||
16f796b1 TT |
87 | static char *dummy_make_corefile_notes (struct target_ops *self, |
88 | bfd *ignore1, int *ignore2); | |
89 | ||
6b84065d TT |
90 | static int find_default_can_async_p (struct target_ops *ignore); |
91 | ||
92 | static int find_default_is_async_p (struct target_ops *ignore); | |
93 | ||
fe31bf5b TT |
94 | static enum exec_direction_kind default_execution_direction |
95 | (struct target_ops *self); | |
96 | ||
1101cb7b TT |
97 | #include "target-delegates.c" |
98 | ||
a14ed312 | 99 | static void init_dummy_target (void); |
c906108c | 100 | |
aa869812 AC |
101 | static struct target_ops debug_target; |
102 | ||
a14ed312 | 103 | static void debug_to_open (char *, int); |
c906108c | 104 | |
f32dbf8c MM |
105 | static void debug_to_prepare_to_store (struct target_ops *self, |
106 | struct regcache *); | |
c906108c | 107 | |
a14ed312 | 108 | static void debug_to_files_info (struct target_ops *); |
c906108c | 109 | |
3db08215 | 110 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 111 | struct bp_target_info *); |
c906108c | 112 | |
3db08215 | 113 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 114 | struct bp_target_info *); |
c906108c | 115 | |
5461485a TT |
116 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
117 | int, int, int); | |
ccaa32c7 | 118 | |
23a26771 TT |
119 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
120 | struct gdbarch *, | |
a6d9a66e | 121 | struct bp_target_info *); |
ccaa32c7 | 122 | |
a64dc96c TT |
123 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
124 | struct gdbarch *, | |
a6d9a66e | 125 | struct bp_target_info *); |
ccaa32c7 | 126 | |
7bb99c53 TT |
127 | static int debug_to_insert_watchpoint (struct target_ops *self, |
128 | CORE_ADDR, int, int, | |
0cf6dd15 | 129 | struct expression *); |
ccaa32c7 | 130 | |
11b5219a TT |
131 | static int debug_to_remove_watchpoint (struct target_ops *self, |
132 | CORE_ADDR, int, int, | |
0cf6dd15 | 133 | struct expression *); |
ccaa32c7 | 134 | |
4aa7a7f5 | 135 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 136 | |
5009afc5 AS |
137 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
138 | CORE_ADDR, CORE_ADDR, int); | |
139 | ||
31568a15 TT |
140 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
141 | CORE_ADDR, int); | |
e0d24f8d | 142 | |
c3a5ff89 TT |
143 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
144 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
145 | struct expression *); |
146 | ||
c42bf286 | 147 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 148 | |
d2f640d4 | 149 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 150 | |
2e1e1a19 | 151 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 152 | |
ae3bd431 | 153 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 154 | |
e3594fd1 | 155 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 156 | |
71a9f134 | 157 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 158 | |
da82bd6b | 159 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 160 | |
1eab8a48 | 161 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 162 | |
c906108c | 163 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 164 | array; the current index into the array; the allocated size of the |
c906108c SS |
165 | array. */ |
166 | struct target_ops **target_structs; | |
167 | unsigned target_struct_size; | |
c906108c SS |
168 | unsigned target_struct_allocsize; |
169 | #define DEFAULT_ALLOCSIZE 10 | |
170 | ||
171 | /* The initial current target, so that there is always a semi-valid | |
172 | current target. */ | |
173 | ||
174 | static struct target_ops dummy_target; | |
175 | ||
176 | /* Top of target stack. */ | |
177 | ||
258b763a | 178 | static struct target_ops *target_stack; |
c906108c SS |
179 | |
180 | /* The target structure we are currently using to talk to a process | |
181 | or file or whatever "inferior" we have. */ | |
182 | ||
183 | struct target_ops current_target; | |
184 | ||
185 | /* Command list for target. */ | |
186 | ||
187 | static struct cmd_list_element *targetlist = NULL; | |
188 | ||
cf7a04e8 DJ |
189 | /* Nonzero if we should trust readonly sections from the |
190 | executable when reading memory. */ | |
191 | ||
192 | static int trust_readonly = 0; | |
193 | ||
8defab1a DJ |
194 | /* Nonzero if we should show true memory content including |
195 | memory breakpoint inserted by gdb. */ | |
196 | ||
197 | static int show_memory_breakpoints = 0; | |
198 | ||
d914c394 SS |
199 | /* These globals control whether GDB attempts to perform these |
200 | operations; they are useful for targets that need to prevent | |
201 | inadvertant disruption, such as in non-stop mode. */ | |
202 | ||
203 | int may_write_registers = 1; | |
204 | ||
205 | int may_write_memory = 1; | |
206 | ||
207 | int may_insert_breakpoints = 1; | |
208 | ||
209 | int may_insert_tracepoints = 1; | |
210 | ||
211 | int may_insert_fast_tracepoints = 1; | |
212 | ||
213 | int may_stop = 1; | |
214 | ||
c906108c SS |
215 | /* Non-zero if we want to see trace of target level stuff. */ |
216 | ||
ccce17b0 | 217 | static unsigned int targetdebug = 0; |
920d2a44 AC |
218 | static void |
219 | show_targetdebug (struct ui_file *file, int from_tty, | |
220 | struct cmd_list_element *c, const char *value) | |
221 | { | |
222 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
223 | } | |
c906108c | 224 | |
a14ed312 | 225 | static void setup_target_debug (void); |
c906108c | 226 | |
c906108c SS |
227 | /* The user just typed 'target' without the name of a target. */ |
228 | ||
c906108c | 229 | static void |
fba45db2 | 230 | target_command (char *arg, int from_tty) |
c906108c SS |
231 | { |
232 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
233 | gdb_stdout); | |
234 | } | |
235 | ||
c35b1492 PA |
236 | /* Default target_has_* methods for process_stratum targets. */ |
237 | ||
238 | int | |
239 | default_child_has_all_memory (struct target_ops *ops) | |
240 | { | |
241 | /* If no inferior selected, then we can't read memory here. */ | |
242 | if (ptid_equal (inferior_ptid, null_ptid)) | |
243 | return 0; | |
244 | ||
245 | return 1; | |
246 | } | |
247 | ||
248 | int | |
249 | default_child_has_memory (struct target_ops *ops) | |
250 | { | |
251 | /* If no inferior selected, then we can't read memory here. */ | |
252 | if (ptid_equal (inferior_ptid, null_ptid)) | |
253 | return 0; | |
254 | ||
255 | return 1; | |
256 | } | |
257 | ||
258 | int | |
259 | default_child_has_stack (struct target_ops *ops) | |
260 | { | |
261 | /* If no inferior selected, there's no stack. */ | |
262 | if (ptid_equal (inferior_ptid, null_ptid)) | |
263 | return 0; | |
264 | ||
265 | return 1; | |
266 | } | |
267 | ||
268 | int | |
269 | default_child_has_registers (struct target_ops *ops) | |
270 | { | |
271 | /* Can't read registers from no inferior. */ | |
272 | if (ptid_equal (inferior_ptid, null_ptid)) | |
273 | return 0; | |
274 | ||
275 | return 1; | |
276 | } | |
277 | ||
278 | int | |
aeaec162 | 279 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
280 | { |
281 | /* If there's no thread selected, then we can't make it run through | |
282 | hoops. */ | |
aeaec162 | 283 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
284 | return 0; |
285 | ||
286 | return 1; | |
287 | } | |
288 | ||
289 | ||
290 | int | |
291 | target_has_all_memory_1 (void) | |
292 | { | |
293 | struct target_ops *t; | |
294 | ||
295 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
296 | if (t->to_has_all_memory (t)) | |
297 | return 1; | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
302 | int | |
303 | target_has_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_memory (t)) | |
309 | return 1; | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | int | |
315 | target_has_stack_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_stack (t)) | |
321 | return 1; | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | int | |
327 | target_has_registers_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_registers (t)) | |
333 | return 1; | |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
338 | int | |
aeaec162 | 339 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
340 | { |
341 | struct target_ops *t; | |
342 | ||
343 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 344 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
345 | return 1; |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
aeaec162 TT |
350 | int |
351 | target_has_execution_current (void) | |
352 | { | |
353 | return target_has_execution_1 (inferior_ptid); | |
354 | } | |
355 | ||
c22a2b88 TT |
356 | /* Complete initialization of T. This ensures that various fields in |
357 | T are set, if needed by the target implementation. */ | |
c906108c SS |
358 | |
359 | void | |
c22a2b88 | 360 | complete_target_initialization (struct target_ops *t) |
c906108c | 361 | { |
0088c768 | 362 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
363 | if (t->to_xfer_partial == NULL) |
364 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 365 | |
c35b1492 PA |
366 | if (t->to_has_all_memory == NULL) |
367 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
368 | ||
369 | if (t->to_has_memory == NULL) | |
370 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
371 | ||
372 | if (t->to_has_stack == NULL) | |
373 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
374 | ||
375 | if (t->to_has_registers == NULL) | |
376 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
377 | ||
378 | if (t->to_has_execution == NULL) | |
aeaec162 | 379 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
380 | |
381 | install_delegators (t); | |
c22a2b88 TT |
382 | } |
383 | ||
384 | /* Add possible target architecture T to the list and add a new | |
385 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
386 | completer if not NULL. */ | |
387 | ||
388 | void | |
389 | add_target_with_completer (struct target_ops *t, | |
390 | completer_ftype *completer) | |
391 | { | |
392 | struct cmd_list_element *c; | |
393 | ||
394 | complete_target_initialization (t); | |
c35b1492 | 395 | |
c906108c SS |
396 | if (!target_structs) |
397 | { | |
398 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
399 | target_structs = (struct target_ops **) xmalloc | |
400 | (target_struct_allocsize * sizeof (*target_structs)); | |
401 | } | |
402 | if (target_struct_size >= target_struct_allocsize) | |
403 | { | |
404 | target_struct_allocsize *= 2; | |
405 | target_structs = (struct target_ops **) | |
c5aa993b JM |
406 | xrealloc ((char *) target_structs, |
407 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
408 | } |
409 | target_structs[target_struct_size++] = t; | |
c906108c SS |
410 | |
411 | if (targetlist == NULL) | |
1bedd215 AC |
412 | add_prefix_cmd ("target", class_run, target_command, _("\ |
413 | Connect to a target machine or process.\n\ | |
c906108c SS |
414 | The first argument is the type or protocol of the target machine.\n\ |
415 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
416 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 417 | `help target ' followed by the protocol name."), |
c906108c | 418 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
419 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
420 | &targetlist); | |
421 | if (completer != NULL) | |
422 | set_cmd_completer (c, completer); | |
423 | } | |
424 | ||
425 | /* Add a possible target architecture to the list. */ | |
426 | ||
427 | void | |
428 | add_target (struct target_ops *t) | |
429 | { | |
430 | add_target_with_completer (t, NULL); | |
c906108c SS |
431 | } |
432 | ||
b48d48eb MM |
433 | /* See target.h. */ |
434 | ||
435 | void | |
436 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
437 | { | |
438 | struct cmd_list_element *c; | |
439 | char *alt; | |
440 | ||
441 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
442 | see PR cli/15104. */ | |
443 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
444 | alt = xstrprintf ("target %s", t->to_shortname); | |
445 | deprecate_cmd (c, alt); | |
446 | } | |
447 | ||
c906108c SS |
448 | /* Stub functions */ |
449 | ||
450 | void | |
fba45db2 | 451 | target_ignore (void) |
c906108c SS |
452 | { |
453 | } | |
454 | ||
7d85a9c0 JB |
455 | void |
456 | target_kill (void) | |
457 | { | |
423a4807 TT |
458 | if (targetdebug) |
459 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
7d85a9c0 | 460 | |
423a4807 | 461 | current_target.to_kill (¤t_target); |
7d85a9c0 JB |
462 | } |
463 | ||
11cf8741 JM |
464 | void |
465 | target_load (char *arg, int from_tty) | |
466 | { | |
4e5d721f | 467 | target_dcache_invalidate (); |
71a9f134 | 468 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
469 | } |
470 | ||
947b8855 PA |
471 | void |
472 | target_create_inferior (char *exec_file, char *args, | |
473 | char **env, int from_tty) | |
136d6dae VP |
474 | { |
475 | struct target_ops *t; | |
5d502164 | 476 | |
136d6dae VP |
477 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
478 | { | |
479 | if (t->to_create_inferior != NULL) | |
480 | { | |
481 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
482 | if (targetdebug) |
483 | fprintf_unfiltered (gdb_stdlog, | |
484 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
485 | exec_file, args, from_tty); | |
136d6dae VP |
486 | return; |
487 | } | |
488 | } | |
489 | ||
490 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 491 | _("could not find a target to create inferior")); |
136d6dae VP |
492 | } |
493 | ||
d9d2d8b6 PA |
494 | void |
495 | target_terminal_inferior (void) | |
496 | { | |
497 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 498 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
499 | this point the target is not async yet. However, if sync_execution |
500 | is not set, we know it will become async prior to resume. */ | |
501 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
502 | return; |
503 | ||
504 | /* If GDB is resuming the inferior in the foreground, install | |
505 | inferior's terminal modes. */ | |
d2f640d4 | 506 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 507 | } |
136d6dae | 508 | |
c906108c | 509 | static int |
fba45db2 KB |
510 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
511 | struct target_ops *t) | |
c906108c | 512 | { |
c378eb4e MS |
513 | errno = EIO; /* Can't read/write this location. */ |
514 | return 0; /* No bytes handled. */ | |
c906108c SS |
515 | } |
516 | ||
517 | static void | |
fba45db2 | 518 | tcomplain (void) |
c906108c | 519 | { |
8a3fe4f8 | 520 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
521 | current_target.to_shortname); |
522 | } | |
523 | ||
524 | void | |
fba45db2 | 525 | noprocess (void) |
c906108c | 526 | { |
8a3fe4f8 | 527 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
528 | } |
529 | ||
c906108c | 530 | static void |
0a4f40a2 | 531 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 532 | { |
a3f17187 | 533 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
534 | } |
535 | ||
0ef643c8 JB |
536 | /* A default implementation for the to_get_ada_task_ptid target method. |
537 | ||
538 | This function builds the PTID by using both LWP and TID as part of | |
539 | the PTID lwp and tid elements. The pid used is the pid of the | |
540 | inferior_ptid. */ | |
541 | ||
2c0b251b | 542 | static ptid_t |
1e6b91a4 | 543 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
544 | { |
545 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
546 | } | |
547 | ||
32231432 | 548 | static enum exec_direction_kind |
4c612759 | 549 | default_execution_direction (struct target_ops *self) |
32231432 PA |
550 | { |
551 | if (!target_can_execute_reverse) | |
552 | return EXEC_FORWARD; | |
553 | else if (!target_can_async_p ()) | |
554 | return EXEC_FORWARD; | |
555 | else | |
556 | gdb_assert_not_reached ("\ | |
557 | to_execution_direction must be implemented for reverse async"); | |
558 | } | |
559 | ||
7998dfc3 AC |
560 | /* Go through the target stack from top to bottom, copying over zero |
561 | entries in current_target, then filling in still empty entries. In | |
562 | effect, we are doing class inheritance through the pushed target | |
563 | vectors. | |
564 | ||
565 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
566 | is currently implemented, is that it discards any knowledge of | |
567 | which target an inherited method originally belonged to. | |
568 | Consequently, new new target methods should instead explicitly and | |
569 | locally search the target stack for the target that can handle the | |
570 | request. */ | |
c906108c SS |
571 | |
572 | static void | |
7998dfc3 | 573 | update_current_target (void) |
c906108c | 574 | { |
7998dfc3 AC |
575 | struct target_ops *t; |
576 | ||
08d8bcd7 | 577 | /* First, reset current's contents. */ |
7998dfc3 AC |
578 | memset (¤t_target, 0, sizeof (current_target)); |
579 | ||
1101cb7b TT |
580 | /* Install the delegators. */ |
581 | install_delegators (¤t_target); | |
582 | ||
7998dfc3 AC |
583 | #define INHERIT(FIELD, TARGET) \ |
584 | if (!current_target.FIELD) \ | |
585 | current_target.FIELD = (TARGET)->FIELD | |
586 | ||
587 | for (t = target_stack; t; t = t->beneath) | |
588 | { | |
589 | INHERIT (to_shortname, t); | |
590 | INHERIT (to_longname, t); | |
591 | INHERIT (to_doc, t); | |
b52323fa UW |
592 | /* Do not inherit to_open. */ |
593 | /* Do not inherit to_close. */ | |
136d6dae | 594 | /* Do not inherit to_attach. */ |
bebd3233 | 595 | /* Do not inherit to_post_attach. */ |
dc177b7a | 596 | INHERIT (to_attach_no_wait, t); |
136d6dae | 597 | /* Do not inherit to_detach. */ |
597320e7 | 598 | /* Do not inherit to_disconnect. */ |
28439f5e | 599 | /* Do not inherit to_resume. */ |
117de6a9 | 600 | /* Do not inherit to_wait. */ |
28439f5e PA |
601 | /* Do not inherit to_fetch_registers. */ |
602 | /* Do not inherit to_store_registers. */ | |
6c628163 | 603 | /* Do not inherit to_prepare_to_store. */ |
c8e73a31 | 604 | INHERIT (deprecated_xfer_memory, t); |
f86e59b2 | 605 | /* Do not inherit to_files_info. */ |
3db08215 MM |
606 | /* Do not inherit to_insert_breakpoint. */ |
607 | /* Do not inherit to_remove_breakpoint. */ | |
52b51d06 | 608 | /* Do not inherit to_can_use_hw_breakpoint. */ |
61b371f9 | 609 | /* Do not inherit to_insert_hw_breakpoint. */ |
418dabac | 610 | /* Do not inherit to_remove_hw_breakpoint. */ |
f1310107 | 611 | /* Do not inherit to_ranged_break_num_registers. */ |
016facd4 | 612 | /* Do not inherit to_insert_watchpoint. */ |
61dd109f | 613 | /* Do not inherit to_remove_watchpoint. */ |
9c06b0b4 TJB |
614 | /* Do not inherit to_insert_mask_watchpoint. */ |
615 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 616 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 617 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 618 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 619 | /* Do not inherit to_stopped_by_watchpoint. */ |
65f160a9 | 620 | /* Do not inherit to_watchpoint_addr_within_range. */ |
d03655e4 | 621 | /* Do not inherit to_region_ok_for_hw_watchpoint. */ |
77cdffe9 | 622 | /* Do not inherit to_can_accel_watchpoint_condition. */ |
9c06b0b4 | 623 | /* Do not inherit to_masked_watch_num_registers. */ |
0343661d | 624 | /* Do not inherit to_terminal_init. */ |
ddeaacc9 | 625 | /* Do not inherit to_terminal_inferior. */ |
74fcbef9 | 626 | /* Do not inherit to_terminal_ours_for_output. */ |
e4a733f1 | 627 | /* Do not inherit to_terminal_ours. */ |
c6ea8f79 | 628 | /* Do not inherit to_terminal_save_ours. */ |
e19e919f | 629 | /* Do not inherit to_terminal_info. */ |
7d85a9c0 | 630 | /* Do not inherit to_kill. */ |
7634da87 | 631 | /* Do not inherit to_load. */ |
136d6dae | 632 | /* Do no inherit to_create_inferior. */ |
340ba4bf | 633 | /* Do not inherit to_post_startup_inferior. */ |
5958ebeb | 634 | /* Do not inherit to_insert_fork_catchpoint. */ |
e1a21fb7 | 635 | /* Do not inherit to_remove_fork_catchpoint. */ |
7e18a8dc | 636 | /* Do not inherit to_insert_vfork_catchpoint. */ |
95c3375e | 637 | /* Do not inherit to_remove_vfork_catchpoint. */ |
ee057212 | 638 | /* Do not inherit to_follow_fork. */ |
62f64d7a | 639 | /* Do not inherit to_insert_exec_catchpoint. */ |
cda0f38c | 640 | /* Do not inherit to_remove_exec_catchpoint. */ |
6a9fa051 | 641 | /* Do not inherit to_set_syscall_catchpoint. */ |
0db88c1d | 642 | /* Do not inherit to_has_exited. */ |
82892036 | 643 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 644 | INHERIT (to_can_run, t); |
2455069d | 645 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 646 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
647 | /* Do not inherit to_thread_alive. */ |
648 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 649 | /* Do not inherit to_pid_to_str. */ |
4a7e6dda | 650 | /* Do not inherit to_extra_thread_info. */ |
825828fc | 651 | /* Do not inherit to_thread_name. */ |
46ee7e8d | 652 | /* Do not inherit to_stop. */ |
4b8a223f | 653 | /* Do not inherit to_xfer_partial. */ |
a53f3625 | 654 | /* Do not inherit to_rcmd. */ |
830ca330 | 655 | /* Do not inherit to_pid_to_exec_file. */ |
d9cb0195 | 656 | /* Do not inherit to_log_command. */ |
7998dfc3 | 657 | INHERIT (to_stratum, t); |
c378eb4e MS |
658 | /* Do not inherit to_has_all_memory. */ |
659 | /* Do not inherit to_has_memory. */ | |
660 | /* Do not inherit to_has_stack. */ | |
661 | /* Do not inherit to_has_registers. */ | |
662 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 663 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
664 | /* Do not inherit to_can_async_p. */ |
665 | /* Do not inherit to_is_async_p. */ | |
666 | /* Do not inherit to_async. */ | |
0b5a2719 | 667 | /* Do not inherit to_find_memory_regions. */ |
16f796b1 | 668 | /* Do not inherit to_make_corefile_notes. */ |
3dbafbbb | 669 | /* Do not inherit to_get_bookmark. */ |
9bb9d61d | 670 | /* Do not inherit to_goto_bookmark. */ |
117de6a9 | 671 | /* Do not inherit to_get_thread_local_address. */ |
53e1cfc7 | 672 | /* Do not inherit to_can_execute_reverse. */ |
fe31bf5b | 673 | /* Do not inherit to_execution_direction. */ |
43eba180 | 674 | /* Do not inherit to_thread_architecture. */ |
424163ea | 675 | /* Do not inherit to_read_description. */ |
4229b31d | 676 | /* Do not inherit to_get_ada_task_ptid. */ |
08388c79 | 677 | /* Do not inherit to_search_memory. */ |
a7304748 | 678 | /* Do not inherit to_supports_multi_process. */ |
aab1b22d | 679 | /* Do not inherit to_supports_enable_disable_tracepoint. */ |
9409d39e | 680 | /* Do not inherit to_supports_string_tracing. */ |
5536135b | 681 | /* Do not inherit to_trace_init. */ |
9a980a22 | 682 | /* Do not inherit to_download_tracepoint. */ |
719acc4a | 683 | /* Do not inherit to_can_download_tracepoint. */ |
94eb98b9 | 684 | /* Do not inherit to_download_trace_state_variable. */ |
151f70f1 | 685 | /* Do not inherit to_enable_tracepoint. */ |
05c41993 | 686 | /* Do not inherit to_disable_tracepoint. */ |
86dd181d | 687 | /* Do not inherit to_trace_set_readonly_regions. */ |
25da2e80 | 688 | /* Do not inherit to_trace_start. */ |
4072d4ff | 689 | /* Do not inherit to_get_trace_status. */ |
6fea14cd | 690 | /* Do not inherit to_get_tracepoint_status. */ |
e51c07ea | 691 | /* Do not inherit to_trace_stop. */ |
afc94e66 | 692 | /* Do not inherit to_trace_find. */ |
959bcd0b | 693 | /* Do not inherit to_get_trace_state_variable_value. */ |
a2e6c147 | 694 | /* Do not inherit to_save_trace_data. */ |
1e949b00 | 695 | /* Do not inherit to_upload_tracepoints. */ |
08120467 | 696 | /* Do not inherit to_upload_trace_state_variables. */ |
ace92e7d | 697 | /* Do not inherit to_get_raw_trace_data. */ |
9249843f | 698 | /* Do not inherit to_get_min_fast_tracepoint_insn_len. */ |
0bcfeddf | 699 | /* Do not inherit to_set_disconnected_tracing. */ |
8d526939 | 700 | /* Do not inherit to_set_circular_trace_buffer. */ |
91df8d1d | 701 | /* Do not inherit to_set_trace_buffer_size. */ |
8586ccaa | 702 | /* Do not inherit to_set_trace_notes. */ |
22bcceee | 703 | /* Do not inherit to_get_tib_address. */ |
dcd6917f | 704 | /* Do not inherit to_set_permissions. */ |
4c3e4425 | 705 | /* Do not inherit to_static_tracepoint_marker_at. */ |
d6522a22 | 706 | /* Do not inherit to_static_tracepoint_markers_by_strid. */ |
92155eeb | 707 | /* Do not inherit to_traceframe_info. */ |
d9db5b21 | 708 | /* Do not inherit to_use_agent. */ |
9a7d8b48 | 709 | /* Do not inherit to_can_use_agent. */ |
0de91722 | 710 | /* Do not inherit to_augmented_libraries_svr4_read. */ |
7998dfc3 | 711 | INHERIT (to_magic, t); |
ccfde2a0 TT |
712 | /* Do not inherit |
713 | to_supports_evaluation_of_breakpoint_conditions. */ | |
843f59ed | 714 | /* Do not inherit to_can_run_breakpoint_commands. */ |
fd79ecee | 715 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
716 | /* Do not inherit to_flash_erase. */ |
717 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
718 | } |
719 | #undef INHERIT | |
720 | ||
721 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
722 | it. Some entries are defaulted to a method that print an error, |
723 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
724 | |
725 | #define de_fault(field, value) \ | |
7998dfc3 AC |
726 | if (!current_target.field) \ |
727 | current_target.field = value | |
0d06e24b | 728 | |
2bc416ba DJ |
729 | de_fault (to_open, |
730 | (void (*) (char *, int)) | |
0d06e24b | 731 | tcomplain); |
2bc416ba | 732 | de_fault (to_close, |
de90e03d | 733 | (void (*) (struct target_ops *)) |
0d06e24b | 734 | target_ignore); |
2bc416ba | 735 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
736 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
737 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 738 | nomemory); |
2bc416ba | 739 | de_fault (to_can_run, |
da82bd6b | 740 | (int (*) (struct target_ops *)) |
0d06e24b | 741 | return_zero); |
424163ea | 742 | current_target.to_read_description = NULL; |
32231432 | 743 | |
c906108c | 744 | #undef de_fault |
c906108c | 745 | |
7998dfc3 AC |
746 | /* Finally, position the target-stack beneath the squashed |
747 | "current_target". That way code looking for a non-inherited | |
748 | target method can quickly and simply find it. */ | |
749 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
750 | |
751 | if (targetdebug) | |
752 | setup_target_debug (); | |
c906108c SS |
753 | } |
754 | ||
755 | /* Push a new target type into the stack of the existing target accessors, | |
756 | possibly superseding some of the existing accessors. | |
757 | ||
c906108c SS |
758 | Rather than allow an empty stack, we always have the dummy target at |
759 | the bottom stratum, so we can call the function vectors without | |
760 | checking them. */ | |
761 | ||
b26a4dcb | 762 | void |
fba45db2 | 763 | push_target (struct target_ops *t) |
c906108c | 764 | { |
258b763a | 765 | struct target_ops **cur; |
c906108c SS |
766 | |
767 | /* Check magic number. If wrong, it probably means someone changed | |
768 | the struct definition, but not all the places that initialize one. */ | |
769 | if (t->to_magic != OPS_MAGIC) | |
770 | { | |
c5aa993b JM |
771 | fprintf_unfiltered (gdb_stderr, |
772 | "Magic number of %s target struct wrong\n", | |
773 | t->to_shortname); | |
3e43a32a MS |
774 | internal_error (__FILE__, __LINE__, |
775 | _("failed internal consistency check")); | |
c906108c SS |
776 | } |
777 | ||
258b763a AC |
778 | /* Find the proper stratum to install this target in. */ |
779 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 780 | { |
258b763a | 781 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
782 | break; |
783 | } | |
784 | ||
258b763a | 785 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 786 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
787 | targets to CUR, and not just those at this stratum level. */ |
788 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
789 | { | |
790 | /* There's already something at this stratum level. Close it, | |
791 | and un-hook it from the stack. */ | |
792 | struct target_ops *tmp = (*cur); | |
5d502164 | 793 | |
258b763a AC |
794 | (*cur) = (*cur)->beneath; |
795 | tmp->beneath = NULL; | |
460014f5 | 796 | target_close (tmp); |
258b763a | 797 | } |
c906108c SS |
798 | |
799 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
800 | t->beneath = (*cur); |
801 | (*cur) = t; | |
c906108c SS |
802 | |
803 | update_current_target (); | |
c906108c SS |
804 | } |
805 | ||
2bc416ba | 806 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
807 | Return how many times it was removed (0 or 1). */ |
808 | ||
809 | int | |
fba45db2 | 810 | unpush_target (struct target_ops *t) |
c906108c | 811 | { |
258b763a AC |
812 | struct target_ops **cur; |
813 | struct target_ops *tmp; | |
c906108c | 814 | |
c8d104ad PA |
815 | if (t->to_stratum == dummy_stratum) |
816 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 817 | _("Attempt to unpush the dummy target")); |
c8d104ad | 818 | |
c906108c | 819 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 820 | can only occur once in the target stack. */ |
c906108c | 821 | |
258b763a AC |
822 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
823 | { | |
824 | if ((*cur) == t) | |
825 | break; | |
826 | } | |
c906108c | 827 | |
305436e0 PA |
828 | /* If we don't find target_ops, quit. Only open targets should be |
829 | closed. */ | |
258b763a | 830 | if ((*cur) == NULL) |
305436e0 | 831 | return 0; |
5269965e | 832 | |
c378eb4e | 833 | /* Unchain the target. */ |
258b763a AC |
834 | tmp = (*cur); |
835 | (*cur) = (*cur)->beneath; | |
836 | tmp->beneath = NULL; | |
c906108c SS |
837 | |
838 | update_current_target (); | |
c906108c | 839 | |
305436e0 PA |
840 | /* Finally close the target. Note we do this after unchaining, so |
841 | any target method calls from within the target_close | |
842 | implementation don't end up in T anymore. */ | |
460014f5 | 843 | target_close (t); |
305436e0 | 844 | |
c906108c SS |
845 | return 1; |
846 | } | |
847 | ||
aa76d38d | 848 | void |
460014f5 | 849 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 850 | { |
87ab71f0 | 851 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 852 | { |
aa76d38d PA |
853 | if (!unpush_target (target_stack)) |
854 | { | |
855 | fprintf_unfiltered (gdb_stderr, | |
856 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 857 | target_stack->to_shortname); |
aa76d38d PA |
858 | internal_error (__FILE__, __LINE__, |
859 | _("failed internal consistency check")); | |
860 | break; | |
861 | } | |
862 | } | |
863 | } | |
864 | ||
87ab71f0 | 865 | void |
460014f5 | 866 | pop_all_targets (void) |
87ab71f0 | 867 | { |
460014f5 | 868 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
869 | } |
870 | ||
c0edd9ed JK |
871 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
872 | ||
873 | int | |
874 | target_is_pushed (struct target_ops *t) | |
875 | { | |
876 | struct target_ops **cur; | |
877 | ||
878 | /* Check magic number. If wrong, it probably means someone changed | |
879 | the struct definition, but not all the places that initialize one. */ | |
880 | if (t->to_magic != OPS_MAGIC) | |
881 | { | |
882 | fprintf_unfiltered (gdb_stderr, | |
883 | "Magic number of %s target struct wrong\n", | |
884 | t->to_shortname); | |
3e43a32a MS |
885 | internal_error (__FILE__, __LINE__, |
886 | _("failed internal consistency check")); | |
c0edd9ed JK |
887 | } |
888 | ||
889 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
890 | if (*cur == t) | |
891 | return 1; | |
892 | ||
893 | return 0; | |
894 | } | |
895 | ||
72f5cf0e | 896 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
897 | current thread's thread-local storage with offset OFFSET. */ |
898 | CORE_ADDR | |
899 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
900 | { | |
901 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
902 | struct target_ops *target; |
903 | ||
904 | for (target = current_target.beneath; | |
905 | target != NULL; | |
906 | target = target->beneath) | |
907 | { | |
908 | if (target->to_get_thread_local_address != NULL) | |
909 | break; | |
910 | } | |
9e35dae4 | 911 | |
117de6a9 | 912 | if (target != NULL |
f5656ead | 913 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
914 | { |
915 | ptid_t ptid = inferior_ptid; | |
916 | volatile struct gdb_exception ex; | |
917 | ||
918 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
919 | { | |
920 | CORE_ADDR lm_addr; | |
921 | ||
922 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 923 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
924 | objfile); |
925 | /* If it's 0, throw the appropriate exception. */ | |
926 | if (lm_addr == 0) | |
927 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
928 | _("TLS load module not found")); | |
929 | ||
3e43a32a MS |
930 | addr = target->to_get_thread_local_address (target, ptid, |
931 | lm_addr, offset); | |
9e35dae4 DJ |
932 | } |
933 | /* If an error occurred, print TLS related messages here. Otherwise, | |
934 | throw the error to some higher catcher. */ | |
935 | if (ex.reason < 0) | |
936 | { | |
937 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
938 | ||
939 | switch (ex.error) | |
940 | { | |
941 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
942 | error (_("Cannot find thread-local variables " |
943 | "in this thread library.")); | |
9e35dae4 DJ |
944 | break; |
945 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
946 | if (objfile_is_library) | |
947 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 948 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
949 | else |
950 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 951 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
952 | break; |
953 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
954 | if (objfile_is_library) | |
955 | error (_("The inferior has not yet allocated storage for" | |
956 | " thread-local variables in\n" | |
957 | "the shared library `%s'\n" | |
958 | "for %s"), | |
4262abfb | 959 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
960 | else |
961 | error (_("The inferior has not yet allocated storage for" | |
962 | " thread-local variables in\n" | |
963 | "the executable `%s'\n" | |
964 | "for %s"), | |
4262abfb | 965 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
966 | break; |
967 | case TLS_GENERIC_ERROR: | |
968 | if (objfile_is_library) | |
969 | error (_("Cannot find thread-local storage for %s, " | |
970 | "shared library %s:\n%s"), | |
971 | target_pid_to_str (ptid), | |
4262abfb | 972 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
973 | else |
974 | error (_("Cannot find thread-local storage for %s, " | |
975 | "executable file %s:\n%s"), | |
976 | target_pid_to_str (ptid), | |
4262abfb | 977 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
978 | break; |
979 | default: | |
980 | throw_exception (ex); | |
981 | break; | |
982 | } | |
983 | } | |
984 | } | |
985 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
986 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
987 | else | |
988 | error (_("Cannot find thread-local variables on this target")); | |
989 | ||
990 | return addr; | |
991 | } | |
992 | ||
6be7b56e | 993 | const char * |
9b409511 | 994 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
995 | { |
996 | #define CASE(X) case X: return #X | |
997 | switch (err) | |
998 | { | |
999 | CASE(TARGET_XFER_E_IO); | |
1000 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1001 | default: | |
1002 | return "<unknown>"; | |
1003 | } | |
1004 | #undef CASE | |
1005 | }; | |
1006 | ||
1007 | ||
c906108c SS |
1008 | #undef MIN |
1009 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1010 | ||
1011 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1012 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1013 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1014 | is responsible for freeing it. Return the number of bytes successfully | |
1015 | read. */ | |
1016 | ||
1017 | int | |
fba45db2 | 1018 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1019 | { |
c2e8b827 | 1020 | int tlen, offset, i; |
1b0ba102 | 1021 | gdb_byte buf[4]; |
c906108c SS |
1022 | int errcode = 0; |
1023 | char *buffer; | |
1024 | int buffer_allocated; | |
1025 | char *bufptr; | |
1026 | unsigned int nbytes_read = 0; | |
1027 | ||
6217bf3e MS |
1028 | gdb_assert (string); |
1029 | ||
c906108c SS |
1030 | /* Small for testing. */ |
1031 | buffer_allocated = 4; | |
1032 | buffer = xmalloc (buffer_allocated); | |
1033 | bufptr = buffer; | |
1034 | ||
c906108c SS |
1035 | while (len > 0) |
1036 | { | |
1037 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1038 | offset = memaddr & 3; | |
1039 | ||
1b0ba102 | 1040 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1041 | if (errcode != 0) |
1042 | { | |
1043 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1044 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1045 | a single byte. */ |
1046 | tlen = 1; | |
1047 | offset = 0; | |
b8eb5af0 | 1048 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1049 | if (errcode != 0) |
1050 | goto done; | |
1051 | } | |
1052 | ||
1053 | if (bufptr - buffer + tlen > buffer_allocated) | |
1054 | { | |
1055 | unsigned int bytes; | |
5d502164 | 1056 | |
c906108c SS |
1057 | bytes = bufptr - buffer; |
1058 | buffer_allocated *= 2; | |
1059 | buffer = xrealloc (buffer, buffer_allocated); | |
1060 | bufptr = buffer + bytes; | |
1061 | } | |
1062 | ||
1063 | for (i = 0; i < tlen; i++) | |
1064 | { | |
1065 | *bufptr++ = buf[i + offset]; | |
1066 | if (buf[i + offset] == '\000') | |
1067 | { | |
1068 | nbytes_read += i + 1; | |
1069 | goto done; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | memaddr += tlen; | |
1074 | len -= tlen; | |
1075 | nbytes_read += tlen; | |
1076 | } | |
c5aa993b | 1077 | done: |
6217bf3e | 1078 | *string = buffer; |
c906108c SS |
1079 | if (errnop != NULL) |
1080 | *errnop = errcode; | |
c906108c SS |
1081 | return nbytes_read; |
1082 | } | |
1083 | ||
07b82ea5 PA |
1084 | struct target_section_table * |
1085 | target_get_section_table (struct target_ops *target) | |
1086 | { | |
1087 | struct target_ops *t; | |
1088 | ||
1089 | if (targetdebug) | |
1090 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1091 | ||
1092 | for (t = target; t != NULL; t = t->beneath) | |
1093 | if (t->to_get_section_table != NULL) | |
1094 | return (*t->to_get_section_table) (t); | |
1095 | ||
1096 | return NULL; | |
1097 | } | |
1098 | ||
8db32d44 | 1099 | /* Find a section containing ADDR. */ |
07b82ea5 | 1100 | |
0542c86d | 1101 | struct target_section * |
8db32d44 AC |
1102 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1103 | { | |
07b82ea5 | 1104 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1105 | struct target_section *secp; |
07b82ea5 PA |
1106 | |
1107 | if (table == NULL) | |
1108 | return NULL; | |
1109 | ||
1110 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1111 | { |
1112 | if (addr >= secp->addr && addr < secp->endaddr) | |
1113 | return secp; | |
1114 | } | |
1115 | return NULL; | |
1116 | } | |
1117 | ||
e6e4e701 PA |
1118 | /* Read memory from the live target, even if currently inspecting a |
1119 | traceframe. The return is the same as that of target_read. */ | |
1120 | ||
9b409511 | 1121 | static enum target_xfer_status |
e6e4e701 | 1122 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1123 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1124 | ULONGEST *xfered_len) | |
e6e4e701 | 1125 | { |
9b409511 | 1126 | enum target_xfer_status ret; |
e6e4e701 PA |
1127 | struct cleanup *cleanup; |
1128 | ||
1129 | /* Switch momentarily out of tfind mode so to access live memory. | |
1130 | Note that this must not clear global state, such as the frame | |
1131 | cache, which must still remain valid for the previous traceframe. | |
1132 | We may be _building_ the frame cache at this point. */ | |
1133 | cleanup = make_cleanup_restore_traceframe_number (); | |
1134 | set_traceframe_number (-1); | |
1135 | ||
9b409511 YQ |
1136 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1137 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1138 | |
1139 | do_cleanups (cleanup); | |
1140 | return ret; | |
1141 | } | |
1142 | ||
1143 | /* Using the set of read-only target sections of OPS, read live | |
1144 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1145 | top-most target again. |
1146 | ||
1147 | For interface/parameters/return description see target.h, | |
1148 | to_xfer_partial. */ | |
e6e4e701 | 1149 | |
9b409511 | 1150 | static enum target_xfer_status |
e6e4e701 PA |
1151 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1152 | enum target_object object, | |
1153 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1154 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1155 | { |
1156 | struct target_section *secp; | |
1157 | struct target_section_table *table; | |
1158 | ||
1159 | secp = target_section_by_addr (ops, memaddr); | |
1160 | if (secp != NULL | |
2b2848e2 DE |
1161 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1162 | secp->the_bfd_section) | |
e6e4e701 PA |
1163 | & SEC_READONLY)) |
1164 | { | |
1165 | struct target_section *p; | |
1166 | ULONGEST memend = memaddr + len; | |
1167 | ||
1168 | table = target_get_section_table (ops); | |
1169 | ||
1170 | for (p = table->sections; p < table->sections_end; p++) | |
1171 | { | |
1172 | if (memaddr >= p->addr) | |
1173 | { | |
1174 | if (memend <= p->endaddr) | |
1175 | { | |
1176 | /* Entire transfer is within this section. */ | |
1177 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1178 | readbuf, len, xfered_len); |
e6e4e701 PA |
1179 | } |
1180 | else if (memaddr >= p->endaddr) | |
1181 | { | |
1182 | /* This section ends before the transfer starts. */ | |
1183 | continue; | |
1184 | } | |
1185 | else | |
1186 | { | |
1187 | /* This section overlaps the transfer. Just do half. */ | |
1188 | len = p->endaddr - memaddr; | |
1189 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1190 | readbuf, len, xfered_len); |
e6e4e701 PA |
1191 | } |
1192 | } | |
1193 | } | |
1194 | } | |
1195 | ||
9b409511 | 1196 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1197 | } |
1198 | ||
9f713294 YQ |
1199 | /* Read memory from more than one valid target. A core file, for |
1200 | instance, could have some of memory but delegate other bits to | |
1201 | the target below it. So, we must manually try all targets. */ | |
1202 | ||
9b409511 | 1203 | static enum target_xfer_status |
17fde6d0 | 1204 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1205 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1206 | ULONGEST *xfered_len) | |
9f713294 | 1207 | { |
9b409511 | 1208 | enum target_xfer_status res; |
9f713294 YQ |
1209 | |
1210 | do | |
1211 | { | |
1212 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1213 | readbuf, writebuf, memaddr, len, |
1214 | xfered_len); | |
1215 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1216 | break; |
1217 | ||
633785ff MM |
1218 | /* Stop if the target reports that the memory is not available. */ |
1219 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1220 | break; | |
1221 | ||
9f713294 YQ |
1222 | /* We want to continue past core files to executables, but not |
1223 | past a running target's memory. */ | |
1224 | if (ops->to_has_all_memory (ops)) | |
1225 | break; | |
1226 | ||
1227 | ops = ops->beneath; | |
1228 | } | |
1229 | while (ops != NULL); | |
1230 | ||
1231 | return res; | |
1232 | } | |
1233 | ||
7f79c47e DE |
1234 | /* Perform a partial memory transfer. |
1235 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1236 | |
9b409511 | 1237 | static enum target_xfer_status |
f0ba3972 | 1238 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1239 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1240 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1241 | { |
9b409511 | 1242 | enum target_xfer_status res; |
cf7a04e8 DJ |
1243 | int reg_len; |
1244 | struct mem_region *region; | |
4e5d721f | 1245 | struct inferior *inf; |
cf7a04e8 | 1246 | |
07b82ea5 PA |
1247 | /* For accesses to unmapped overlay sections, read directly from |
1248 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1249 | if (readbuf != NULL && overlay_debugging) | |
1250 | { | |
1251 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1252 | |
07b82ea5 PA |
1253 | if (pc_in_unmapped_range (memaddr, section)) |
1254 | { | |
1255 | struct target_section_table *table | |
1256 | = target_get_section_table (ops); | |
1257 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1258 | |
07b82ea5 PA |
1259 | memaddr = overlay_mapped_address (memaddr, section); |
1260 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1261 | memaddr, len, xfered_len, |
07b82ea5 PA |
1262 | table->sections, |
1263 | table->sections_end, | |
1264 | section_name); | |
1265 | } | |
1266 | } | |
1267 | ||
1268 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1269 | if (readbuf != NULL && trust_readonly) |
1270 | { | |
0542c86d | 1271 | struct target_section *secp; |
07b82ea5 | 1272 | struct target_section_table *table; |
cf7a04e8 DJ |
1273 | |
1274 | secp = target_section_by_addr (ops, memaddr); | |
1275 | if (secp != NULL | |
2b2848e2 DE |
1276 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1277 | secp->the_bfd_section) | |
cf7a04e8 | 1278 | & SEC_READONLY)) |
07b82ea5 PA |
1279 | { |
1280 | table = target_get_section_table (ops); | |
1281 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1282 | memaddr, len, xfered_len, |
07b82ea5 PA |
1283 | table->sections, |
1284 | table->sections_end, | |
1285 | NULL); | |
1286 | } | |
98646950 UW |
1287 | } |
1288 | ||
e6e4e701 PA |
1289 | /* If reading unavailable memory in the context of traceframes, and |
1290 | this address falls within a read-only section, fallback to | |
1291 | reading from live memory. */ | |
1292 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1293 | { | |
1294 | VEC(mem_range_s) *available; | |
1295 | ||
1296 | /* If we fail to get the set of available memory, then the | |
1297 | target does not support querying traceframe info, and so we | |
1298 | attempt reading from the traceframe anyway (assuming the | |
1299 | target implements the old QTro packet then). */ | |
1300 | if (traceframe_available_memory (&available, memaddr, len)) | |
1301 | { | |
1302 | struct cleanup *old_chain; | |
1303 | ||
1304 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1305 | ||
1306 | if (VEC_empty (mem_range_s, available) | |
1307 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1308 | { | |
1309 | /* Don't read into the traceframe's available | |
1310 | memory. */ | |
1311 | if (!VEC_empty (mem_range_s, available)) | |
1312 | { | |
1313 | LONGEST oldlen = len; | |
1314 | ||
1315 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1316 | gdb_assert (len <= oldlen); | |
1317 | } | |
1318 | ||
1319 | do_cleanups (old_chain); | |
1320 | ||
1321 | /* This goes through the topmost target again. */ | |
1322 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1323 | readbuf, memaddr, |
1324 | len, xfered_len); | |
1325 | if (res == TARGET_XFER_OK) | |
1326 | return TARGET_XFER_OK; | |
1327 | else | |
1328 | { | |
1329 | /* No use trying further, we know some memory starting | |
1330 | at MEMADDR isn't available. */ | |
1331 | *xfered_len = len; | |
1332 | return TARGET_XFER_E_UNAVAILABLE; | |
1333 | } | |
e6e4e701 PA |
1334 | } |
1335 | ||
1336 | /* Don't try to read more than how much is available, in | |
1337 | case the target implements the deprecated QTro packet to | |
1338 | cater for older GDBs (the target's knowledge of read-only | |
1339 | sections may be outdated by now). */ | |
1340 | len = VEC_index (mem_range_s, available, 0)->length; | |
1341 | ||
1342 | do_cleanups (old_chain); | |
1343 | } | |
1344 | } | |
1345 | ||
cf7a04e8 DJ |
1346 | /* Try GDB's internal data cache. */ |
1347 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1348 | /* region->hi == 0 means there's no upper bound. */ |
1349 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1350 | reg_len = len; |
1351 | else | |
1352 | reg_len = region->hi - memaddr; | |
1353 | ||
1354 | switch (region->attrib.mode) | |
1355 | { | |
1356 | case MEM_RO: | |
1357 | if (writebuf != NULL) | |
2ed4b548 | 1358 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1359 | break; |
1360 | ||
1361 | case MEM_WO: | |
1362 | if (readbuf != NULL) | |
2ed4b548 | 1363 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1364 | break; |
a76d924d DJ |
1365 | |
1366 | case MEM_FLASH: | |
1367 | /* We only support writing to flash during "load" for now. */ | |
1368 | if (writebuf != NULL) | |
1369 | error (_("Writing to flash memory forbidden in this context")); | |
1370 | break; | |
4b5752d0 VP |
1371 | |
1372 | case MEM_NONE: | |
2ed4b548 | 1373 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1374 | } |
1375 | ||
6c95b8df PA |
1376 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1377 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1378 | else | |
1379 | inf = NULL; | |
4e5d721f DE |
1380 | |
1381 | if (inf != NULL | |
2f4d8875 PA |
1382 | /* The dcache reads whole cache lines; that doesn't play well |
1383 | with reading from a trace buffer, because reading outside of | |
1384 | the collected memory range fails. */ | |
1385 | && get_traceframe_number () == -1 | |
4e5d721f | 1386 | && (region->attrib.cache |
29453a14 YQ |
1387 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1388 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1389 | { |
2a2f9fe4 | 1390 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1391 | int l; |
2a2f9fe4 | 1392 | |
cf7a04e8 | 1393 | if (readbuf != NULL) |
9b409511 | 1394 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1395 | else |
1396 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1397 | correctness dcache_xfer_memory should take readbuf and | |
1398 | writebuf. */ | |
9b409511 | 1399 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1400 | reg_len, 1); |
9b409511 YQ |
1401 | if (l <= 0) |
1402 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1403 | else |
9b409511 YQ |
1404 | { |
1405 | *xfered_len = (ULONGEST) l; | |
1406 | return TARGET_XFER_OK; | |
1407 | } | |
cf7a04e8 DJ |
1408 | } |
1409 | ||
1410 | /* If none of those methods found the memory we wanted, fall back | |
1411 | to a target partial transfer. Normally a single call to | |
1412 | to_xfer_partial is enough; if it doesn't recognize an object | |
1413 | it will call the to_xfer_partial of the next target down. | |
1414 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1415 | object which can be read from more than one valid target. |
1416 | A core file, for instance, could have some of memory but | |
1417 | delegate other bits to the target below it. So, we must | |
1418 | manually try all targets. */ | |
1419 | ||
1420 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1421 | xfered_len); | |
cf7a04e8 | 1422 | |
41dcd03f DE |
1423 | /* Make sure the cache gets updated no matter what - if we are writing |
1424 | to the stack. Even if this write is not tagged as such, we still need | |
1425 | to update the cache. */ | |
1426 | ||
9b409511 | 1427 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1428 | && inf != NULL |
1429 | && writebuf != NULL | |
f2de9785 | 1430 | && target_dcache_init_p () |
41dcd03f | 1431 | && !region->attrib.cache |
29453a14 YQ |
1432 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1433 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1434 | { |
f2de9785 | 1435 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1436 | |
9b409511 | 1437 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1438 | } |
1439 | ||
cf7a04e8 DJ |
1440 | /* If we still haven't got anything, return the last error. We |
1441 | give up. */ | |
1442 | return res; | |
0779438d AC |
1443 | } |
1444 | ||
f0ba3972 PA |
1445 | /* Perform a partial memory transfer. For docs see target.h, |
1446 | to_xfer_partial. */ | |
1447 | ||
9b409511 | 1448 | static enum target_xfer_status |
f0ba3972 | 1449 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1450 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1451 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1452 | { |
9b409511 | 1453 | enum target_xfer_status res; |
f0ba3972 PA |
1454 | |
1455 | /* Zero length requests are ok and require no work. */ | |
1456 | if (len == 0) | |
9b409511 | 1457 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1458 | |
1459 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1460 | breakpoint insns, thus hiding out from higher layers whether | |
1461 | there are software breakpoints inserted in the code stream. */ | |
1462 | if (readbuf != NULL) | |
1463 | { | |
9b409511 YQ |
1464 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1465 | xfered_len); | |
f0ba3972 | 1466 | |
9b409511 | 1467 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1468 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1469 | } | |
1470 | else | |
1471 | { | |
1472 | void *buf; | |
1473 | struct cleanup *old_chain; | |
1474 | ||
67c059c2 AB |
1475 | /* A large write request is likely to be partially satisfied |
1476 | by memory_xfer_partial_1. We will continually malloc | |
1477 | and free a copy of the entire write request for breakpoint | |
1478 | shadow handling even though we only end up writing a small | |
1479 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1480 | len = min (4096, len); | |
1481 | ||
f0ba3972 PA |
1482 | buf = xmalloc (len); |
1483 | old_chain = make_cleanup (xfree, buf); | |
1484 | memcpy (buf, writebuf, len); | |
1485 | ||
1486 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1487 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1488 | xfered_len); | |
f0ba3972 PA |
1489 | |
1490 | do_cleanups (old_chain); | |
1491 | } | |
1492 | ||
1493 | return res; | |
1494 | } | |
1495 | ||
8defab1a DJ |
1496 | static void |
1497 | restore_show_memory_breakpoints (void *arg) | |
1498 | { | |
1499 | show_memory_breakpoints = (uintptr_t) arg; | |
1500 | } | |
1501 | ||
1502 | struct cleanup * | |
1503 | make_show_memory_breakpoints_cleanup (int show) | |
1504 | { | |
1505 | int current = show_memory_breakpoints; | |
8defab1a | 1506 | |
5d502164 | 1507 | show_memory_breakpoints = show; |
8defab1a DJ |
1508 | return make_cleanup (restore_show_memory_breakpoints, |
1509 | (void *) (uintptr_t) current); | |
1510 | } | |
1511 | ||
7f79c47e DE |
1512 | /* For docs see target.h, to_xfer_partial. */ |
1513 | ||
9b409511 | 1514 | enum target_xfer_status |
27394598 AC |
1515 | target_xfer_partial (struct target_ops *ops, |
1516 | enum target_object object, const char *annex, | |
4ac248ca | 1517 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1518 | ULONGEST offset, ULONGEST len, |
1519 | ULONGEST *xfered_len) | |
27394598 | 1520 | { |
9b409511 | 1521 | enum target_xfer_status retval; |
27394598 AC |
1522 | |
1523 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1524 | |
ce6d0892 YQ |
1525 | /* Transfer is done when LEN is zero. */ |
1526 | if (len == 0) | |
9b409511 | 1527 | return TARGET_XFER_EOF; |
ce6d0892 | 1528 | |
d914c394 SS |
1529 | if (writebuf && !may_write_memory) |
1530 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1531 | core_addr_to_string_nz (offset), plongest (len)); | |
1532 | ||
9b409511 YQ |
1533 | *xfered_len = 0; |
1534 | ||
cf7a04e8 DJ |
1535 | /* If this is a memory transfer, let the memory-specific code |
1536 | have a look at it instead. Memory transfers are more | |
1537 | complicated. */ | |
29453a14 YQ |
1538 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1539 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1540 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1541 | writebuf, offset, len, xfered_len); |
9f713294 | 1542 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1543 | { |
9f713294 | 1544 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1545 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1546 | xfered_len); | |
cf7a04e8 | 1547 | } |
9f713294 YQ |
1548 | else |
1549 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1550 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1551 | |
27394598 AC |
1552 | if (targetdebug) |
1553 | { | |
1554 | const unsigned char *myaddr = NULL; | |
1555 | ||
1556 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1557 | "%s:target_xfer_partial " |
9b409511 | 1558 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1559 | ops->to_shortname, |
1560 | (int) object, | |
1561 | (annex ? annex : "(null)"), | |
53b71562 JB |
1562 | host_address_to_string (readbuf), |
1563 | host_address_to_string (writebuf), | |
0b1553bc | 1564 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1565 | pulongest (len), retval, |
1566 | pulongest (*xfered_len)); | |
27394598 AC |
1567 | |
1568 | if (readbuf) | |
1569 | myaddr = readbuf; | |
1570 | if (writebuf) | |
1571 | myaddr = writebuf; | |
9b409511 | 1572 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1573 | { |
1574 | int i; | |
2bc416ba | 1575 | |
27394598 | 1576 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1577 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1578 | { |
53b71562 | 1579 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1580 | { |
1581 | if (targetdebug < 2 && i > 0) | |
1582 | { | |
1583 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1584 | break; | |
1585 | } | |
1586 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1587 | } | |
2bc416ba | 1588 | |
27394598 AC |
1589 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1590 | } | |
1591 | } | |
2bc416ba | 1592 | |
27394598 AC |
1593 | fputc_unfiltered ('\n', gdb_stdlog); |
1594 | } | |
9b409511 YQ |
1595 | |
1596 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1597 | properly. Do assertion after printing debug messages, so that we | |
1598 | can find more clues on assertion failure from debugging messages. */ | |
1599 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1600 | gdb_assert (*xfered_len > 0); | |
1601 | ||
27394598 AC |
1602 | return retval; |
1603 | } | |
1604 | ||
578d3588 PA |
1605 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1606 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1607 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1608 | |
1609 | If an error occurs, no guarantee is made about the contents of the data at | |
1610 | MYADDR. In particular, the caller should not depend upon partial reads | |
1611 | filling the buffer with good data. There is no way for the caller to know | |
1612 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1613 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1614 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1615 | |
1616 | int | |
1b162304 | 1617 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1618 | { |
c35b1492 PA |
1619 | /* Dispatch to the topmost target, not the flattened current_target. |
1620 | Memory accesses check target->to_has_(all_)memory, and the | |
1621 | flattened target doesn't inherit those. */ | |
1622 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1623 | myaddr, memaddr, len) == len) |
1624 | return 0; | |
0779438d | 1625 | else |
578d3588 | 1626 | return TARGET_XFER_E_IO; |
c906108c SS |
1627 | } |
1628 | ||
aee4bf85 PA |
1629 | /* Like target_read_memory, but specify explicitly that this is a read |
1630 | from the target's raw memory. That is, this read bypasses the | |
1631 | dcache, breakpoint shadowing, etc. */ | |
1632 | ||
1633 | int | |
1634 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1635 | { | |
1636 | /* See comment in target_read_memory about why the request starts at | |
1637 | current_target.beneath. */ | |
1638 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1639 | myaddr, memaddr, len) == len) | |
1640 | return 0; | |
1641 | else | |
1642 | return TARGET_XFER_E_IO; | |
1643 | } | |
1644 | ||
4e5d721f DE |
1645 | /* Like target_read_memory, but specify explicitly that this is a read from |
1646 | the target's stack. This may trigger different cache behavior. */ | |
1647 | ||
1648 | int | |
45aa4659 | 1649 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1650 | { |
aee4bf85 PA |
1651 | /* See comment in target_read_memory about why the request starts at |
1652 | current_target.beneath. */ | |
4e5d721f DE |
1653 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1654 | myaddr, memaddr, len) == len) | |
1655 | return 0; | |
1656 | else | |
578d3588 | 1657 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1658 | } |
1659 | ||
29453a14 YQ |
1660 | /* Like target_read_memory, but specify explicitly that this is a read from |
1661 | the target's code. This may trigger different cache behavior. */ | |
1662 | ||
1663 | int | |
1664 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1665 | { | |
aee4bf85 PA |
1666 | /* See comment in target_read_memory about why the request starts at |
1667 | current_target.beneath. */ | |
29453a14 YQ |
1668 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1669 | myaddr, memaddr, len) == len) | |
1670 | return 0; | |
1671 | else | |
1672 | return TARGET_XFER_E_IO; | |
1673 | } | |
1674 | ||
7f79c47e | 1675 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1676 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1677 | error occurs. If an error occurs, no guarantee is made about how |
1678 | much data got written. Callers that can deal with partial writes | |
1679 | should call target_write. */ | |
7f79c47e | 1680 | |
c906108c | 1681 | int |
45aa4659 | 1682 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1683 | { |
aee4bf85 PA |
1684 | /* See comment in target_read_memory about why the request starts at |
1685 | current_target.beneath. */ | |
c35b1492 | 1686 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1687 | myaddr, memaddr, len) == len) |
1688 | return 0; | |
0779438d | 1689 | else |
578d3588 | 1690 | return TARGET_XFER_E_IO; |
c906108c | 1691 | } |
c5aa993b | 1692 | |
f0ba3972 | 1693 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1694 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1695 | if any error occurs. If an error occurs, no guarantee is made |
1696 | about how much data got written. Callers that can deal with | |
1697 | partial writes should call target_write. */ | |
f0ba3972 PA |
1698 | |
1699 | int | |
45aa4659 | 1700 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1701 | { |
aee4bf85 PA |
1702 | /* See comment in target_read_memory about why the request starts at |
1703 | current_target.beneath. */ | |
f0ba3972 PA |
1704 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1705 | myaddr, memaddr, len) == len) | |
1706 | return 0; | |
1707 | else | |
578d3588 | 1708 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1709 | } |
1710 | ||
fd79ecee DJ |
1711 | /* Fetch the target's memory map. */ |
1712 | ||
1713 | VEC(mem_region_s) * | |
1714 | target_memory_map (void) | |
1715 | { | |
1716 | VEC(mem_region_s) *result; | |
1717 | struct mem_region *last_one, *this_one; | |
1718 | int ix; | |
1719 | struct target_ops *t; | |
1720 | ||
1721 | if (targetdebug) | |
1722 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1723 | ||
1724 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1725 | if (t->to_memory_map != NULL) | |
1726 | break; | |
1727 | ||
1728 | if (t == NULL) | |
1729 | return NULL; | |
1730 | ||
1731 | result = t->to_memory_map (t); | |
1732 | if (result == NULL) | |
1733 | return NULL; | |
1734 | ||
1735 | qsort (VEC_address (mem_region_s, result), | |
1736 | VEC_length (mem_region_s, result), | |
1737 | sizeof (struct mem_region), mem_region_cmp); | |
1738 | ||
1739 | /* Check that regions do not overlap. Simultaneously assign | |
1740 | a numbering for the "mem" commands to use to refer to | |
1741 | each region. */ | |
1742 | last_one = NULL; | |
1743 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1744 | { | |
1745 | this_one->number = ix; | |
1746 | ||
1747 | if (last_one && last_one->hi > this_one->lo) | |
1748 | { | |
1749 | warning (_("Overlapping regions in memory map: ignoring")); | |
1750 | VEC_free (mem_region_s, result); | |
1751 | return NULL; | |
1752 | } | |
1753 | last_one = this_one; | |
1754 | } | |
1755 | ||
1756 | return result; | |
1757 | } | |
1758 | ||
a76d924d DJ |
1759 | void |
1760 | target_flash_erase (ULONGEST address, LONGEST length) | |
1761 | { | |
1762 | struct target_ops *t; | |
1763 | ||
1764 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1765 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1766 | { |
1767 | if (targetdebug) | |
1768 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1769 | hex_string (address), phex (length, 0)); | |
1770 | t->to_flash_erase (t, address, length); | |
1771 | return; | |
1772 | } | |
a76d924d DJ |
1773 | |
1774 | tcomplain (); | |
1775 | } | |
1776 | ||
1777 | void | |
1778 | target_flash_done (void) | |
1779 | { | |
1780 | struct target_ops *t; | |
1781 | ||
1782 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1783 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1784 | { |
1785 | if (targetdebug) | |
1786 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1787 | t->to_flash_done (t); | |
1788 | return; | |
1789 | } | |
a76d924d DJ |
1790 | |
1791 | tcomplain (); | |
1792 | } | |
1793 | ||
920d2a44 AC |
1794 | static void |
1795 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1796 | struct cmd_list_element *c, const char *value) | |
1797 | { | |
3e43a32a MS |
1798 | fprintf_filtered (file, |
1799 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1800 | value); |
1801 | } | |
3a11626d | 1802 | |
1e3ff5ad AC |
1803 | /* More generic transfers. */ |
1804 | ||
9b409511 | 1805 | static enum target_xfer_status |
8aa91c1e | 1806 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1807 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
1808 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
1809 | ULONGEST *xfered_len) | |
0088c768 AC |
1810 | { |
1811 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1812 | && ops->deprecated_xfer_memory != NULL) |
1813 | /* If available, fall back to the target's | |
1814 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1815 | { |
4b8a223f | 1816 | int xfered = -1; |
5d502164 | 1817 | |
0088c768 | 1818 | errno = 0; |
4b8a223f AC |
1819 | if (writebuf != NULL) |
1820 | { | |
1821 | void *buffer = xmalloc (len); | |
1822 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1823 | |
4b8a223f | 1824 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1825 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1826 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1827 | do_cleanups (cleanup); |
1828 | } | |
1829 | if (readbuf != NULL) | |
244e85c8 MS |
1830 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1831 | 0/*read*/, NULL, ops); | |
0088c768 | 1832 | if (xfered > 0) |
9b409511 YQ |
1833 | { |
1834 | *xfered_len = (ULONGEST) xfered; | |
1835 | return TARGET_XFER_E_IO; | |
1836 | } | |
0088c768 | 1837 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
1838 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1839 | ERRNO as one indication of an error. */ | |
9b409511 | 1840 | return TARGET_XFER_EOF; |
0088c768 | 1841 | else |
9b409511 | 1842 | return TARGET_XFER_E_IO; |
0088c768 | 1843 | } |
0088c768 | 1844 | else |
6b84065d TT |
1845 | { |
1846 | gdb_assert (ops->beneath != NULL); | |
1847 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1848 | readbuf, writebuf, offset, len, | |
1849 | xfered_len); | |
1850 | } | |
0088c768 AC |
1851 | } |
1852 | ||
7f79c47e | 1853 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1854 | |
9b409511 | 1855 | static enum target_xfer_status |
1e3ff5ad AC |
1856 | target_read_partial (struct target_ops *ops, |
1857 | enum target_object object, | |
1b0ba102 | 1858 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
1859 | ULONGEST offset, ULONGEST len, |
1860 | ULONGEST *xfered_len) | |
1e3ff5ad | 1861 | { |
9b409511 YQ |
1862 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
1863 | xfered_len); | |
1e3ff5ad AC |
1864 | } |
1865 | ||
8a55ffb0 | 1866 | static enum target_xfer_status |
1e3ff5ad AC |
1867 | target_write_partial (struct target_ops *ops, |
1868 | enum target_object object, | |
1b0ba102 | 1869 | const char *annex, const gdb_byte *buf, |
9b409511 | 1870 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 1871 | { |
9b409511 YQ |
1872 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
1873 | xfered_len); | |
1e3ff5ad AC |
1874 | } |
1875 | ||
1876 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1877 | |
1878 | /* For docs on target_read see target.h. */ | |
1879 | ||
1e3ff5ad AC |
1880 | LONGEST |
1881 | target_read (struct target_ops *ops, | |
1882 | enum target_object object, | |
1b0ba102 | 1883 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1884 | ULONGEST offset, LONGEST len) |
1885 | { | |
1886 | LONGEST xfered = 0; | |
5d502164 | 1887 | |
1e3ff5ad AC |
1888 | while (xfered < len) |
1889 | { | |
9b409511 YQ |
1890 | ULONGEST xfered_len; |
1891 | enum target_xfer_status status; | |
1892 | ||
1893 | status = target_read_partial (ops, object, annex, | |
1894 | (gdb_byte *) buf + xfered, | |
1895 | offset + xfered, len - xfered, | |
1896 | &xfered_len); | |
5d502164 | 1897 | |
1e3ff5ad | 1898 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 1899 | if (status == TARGET_XFER_EOF) |
13547ab6 | 1900 | return xfered; |
9b409511 YQ |
1901 | else if (status == TARGET_XFER_OK) |
1902 | { | |
1903 | xfered += xfered_len; | |
1904 | QUIT; | |
1905 | } | |
1906 | else | |
0088c768 | 1907 | return -1; |
9b409511 | 1908 | |
1e3ff5ad AC |
1909 | } |
1910 | return len; | |
1911 | } | |
1912 | ||
f1a507a1 JB |
1913 | /* Assuming that the entire [begin, end) range of memory cannot be |
1914 | read, try to read whatever subrange is possible to read. | |
1915 | ||
1916 | The function returns, in RESULT, either zero or one memory block. | |
1917 | If there's a readable subrange at the beginning, it is completely | |
1918 | read and returned. Any further readable subrange will not be read. | |
1919 | Otherwise, if there's a readable subrange at the end, it will be | |
1920 | completely read and returned. Any readable subranges before it | |
1921 | (obviously, not starting at the beginning), will be ignored. In | |
1922 | other cases -- either no readable subrange, or readable subrange(s) | |
1923 | that is neither at the beginning, or end, nothing is returned. | |
1924 | ||
1925 | The purpose of this function is to handle a read across a boundary | |
1926 | of accessible memory in a case when memory map is not available. | |
1927 | The above restrictions are fine for this case, but will give | |
1928 | incorrect results if the memory is 'patchy'. However, supporting | |
1929 | 'patchy' memory would require trying to read every single byte, | |
1930 | and it seems unacceptable solution. Explicit memory map is | |
1931 | recommended for this case -- and target_read_memory_robust will | |
1932 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1933 | |
1934 | static void | |
3e43a32a MS |
1935 | read_whatever_is_readable (struct target_ops *ops, |
1936 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1937 | VEC(memory_read_result_s) **result) |
d5086790 | 1938 | { |
f1a507a1 | 1939 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1940 | ULONGEST current_begin = begin; |
1941 | ULONGEST current_end = end; | |
1942 | int forward; | |
1943 | memory_read_result_s r; | |
9b409511 | 1944 | ULONGEST xfered_len; |
8dedea02 VP |
1945 | |
1946 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1947 | if (end - begin <= 1) | |
13b3fd9b MS |
1948 | { |
1949 | xfree (buf); | |
1950 | return; | |
1951 | } | |
8dedea02 VP |
1952 | |
1953 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1954 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1955 | at the boundary of accessible region. */ |
1956 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 1957 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
1958 | { |
1959 | forward = 1; | |
1960 | ++current_begin; | |
1961 | } | |
1962 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1963 | buf + (end-begin) - 1, end - 1, 1, |
1964 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
1965 | { |
1966 | forward = 0; | |
1967 | --current_end; | |
1968 | } | |
1969 | else | |
1970 | { | |
13b3fd9b | 1971 | xfree (buf); |
8dedea02 VP |
1972 | return; |
1973 | } | |
1974 | ||
1975 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1976 | found to be not readable as a whole. | |
1977 | ||
1978 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1979 | so there's no point trying further. */ | |
1980 | while (current_end - current_begin > 1) | |
1981 | { | |
1982 | ULONGEST first_half_begin, first_half_end; | |
1983 | ULONGEST second_half_begin, second_half_end; | |
1984 | LONGEST xfer; | |
8dedea02 | 1985 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 1986 | |
8dedea02 VP |
1987 | if (forward) |
1988 | { | |
1989 | first_half_begin = current_begin; | |
1990 | first_half_end = middle; | |
1991 | second_half_begin = middle; | |
1992 | second_half_end = current_end; | |
1993 | } | |
1994 | else | |
1995 | { | |
1996 | first_half_begin = middle; | |
1997 | first_half_end = current_end; | |
1998 | second_half_begin = current_begin; | |
1999 | second_half_end = middle; | |
2000 | } | |
2001 | ||
2002 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2003 | buf + (first_half_begin - begin), | |
2004 | first_half_begin, | |
2005 | first_half_end - first_half_begin); | |
2006 | ||
2007 | if (xfer == first_half_end - first_half_begin) | |
2008 | { | |
c378eb4e | 2009 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2010 | other half. */ |
8dedea02 VP |
2011 | current_begin = second_half_begin; |
2012 | current_end = second_half_end; | |
2013 | } | |
2014 | else | |
2015 | { | |
c378eb4e MS |
2016 | /* This half is not readable. Because we've tried one byte, we |
2017 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2018 | iteration to divide again and try to read. |
2019 | ||
2020 | We don't handle the other half, because this function only tries | |
2021 | to read a single readable subrange. */ | |
2022 | current_begin = first_half_begin; | |
2023 | current_end = first_half_end; | |
2024 | } | |
2025 | } | |
2026 | ||
2027 | if (forward) | |
2028 | { | |
2029 | /* The [begin, current_begin) range has been read. */ | |
2030 | r.begin = begin; | |
2031 | r.end = current_begin; | |
2032 | r.data = buf; | |
2033 | } | |
2034 | else | |
2035 | { | |
2036 | /* The [current_end, end) range has been read. */ | |
2037 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2038 | |
8dedea02 VP |
2039 | r.data = xmalloc (rlen); |
2040 | memcpy (r.data, buf + current_end - begin, rlen); | |
2041 | r.begin = current_end; | |
2042 | r.end = end; | |
2043 | xfree (buf); | |
2044 | } | |
2045 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2046 | } | |
2047 | ||
2048 | void | |
2049 | free_memory_read_result_vector (void *x) | |
2050 | { | |
2051 | VEC(memory_read_result_s) *v = x; | |
2052 | memory_read_result_s *current; | |
2053 | int ix; | |
2054 | ||
2055 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2056 | { | |
2057 | xfree (current->data); | |
2058 | } | |
2059 | VEC_free (memory_read_result_s, v); | |
2060 | } | |
2061 | ||
2062 | VEC(memory_read_result_s) * | |
2063 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2064 | { | |
2065 | VEC(memory_read_result_s) *result = 0; | |
2066 | ||
2067 | LONGEST xfered = 0; | |
d5086790 VP |
2068 | while (xfered < len) |
2069 | { | |
8dedea02 VP |
2070 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2071 | LONGEST rlen; | |
5d502164 | 2072 | |
8dedea02 VP |
2073 | /* If there is no explicit region, a fake one should be created. */ |
2074 | gdb_assert (region); | |
2075 | ||
2076 | if (region->hi == 0) | |
2077 | rlen = len - xfered; | |
2078 | else | |
2079 | rlen = region->hi - offset; | |
2080 | ||
2081 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2082 | { |
c378eb4e | 2083 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2084 | if the region is explicitly marked inaccessible, or |
2085 | 'inaccessible-by-default' is in effect. */ | |
2086 | xfered += rlen; | |
2087 | } | |
2088 | else | |
2089 | { | |
2090 | LONGEST to_read = min (len - xfered, rlen); | |
2091 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2092 | ||
2093 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2094 | (gdb_byte *) buffer, | |
2095 | offset + xfered, to_read); | |
2096 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2097 | if (xfer <= 0) |
d5086790 | 2098 | { |
c378eb4e | 2099 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2100 | some subrange. */ |
2101 | xfree (buffer); | |
3e43a32a MS |
2102 | read_whatever_is_readable (ops, offset + xfered, |
2103 | offset + xfered + to_read, &result); | |
8dedea02 | 2104 | xfered += to_read; |
d5086790 | 2105 | } |
8dedea02 VP |
2106 | else |
2107 | { | |
2108 | struct memory_read_result r; | |
2109 | r.data = buffer; | |
2110 | r.begin = offset + xfered; | |
2111 | r.end = r.begin + xfer; | |
2112 | VEC_safe_push (memory_read_result_s, result, &r); | |
2113 | xfered += xfer; | |
2114 | } | |
2115 | QUIT; | |
d5086790 | 2116 | } |
d5086790 | 2117 | } |
8dedea02 | 2118 | return result; |
d5086790 VP |
2119 | } |
2120 | ||
8dedea02 | 2121 | |
cf7a04e8 DJ |
2122 | /* An alternative to target_write with progress callbacks. */ |
2123 | ||
1e3ff5ad | 2124 | LONGEST |
cf7a04e8 DJ |
2125 | target_write_with_progress (struct target_ops *ops, |
2126 | enum target_object object, | |
2127 | const char *annex, const gdb_byte *buf, | |
2128 | ULONGEST offset, LONGEST len, | |
2129 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2130 | { |
2131 | LONGEST xfered = 0; | |
a76d924d DJ |
2132 | |
2133 | /* Give the progress callback a chance to set up. */ | |
2134 | if (progress) | |
2135 | (*progress) (0, baton); | |
2136 | ||
1e3ff5ad AC |
2137 | while (xfered < len) |
2138 | { | |
9b409511 YQ |
2139 | ULONGEST xfered_len; |
2140 | enum target_xfer_status status; | |
2141 | ||
2142 | status = target_write_partial (ops, object, annex, | |
2143 | (gdb_byte *) buf + xfered, | |
2144 | offset + xfered, len - xfered, | |
2145 | &xfered_len); | |
cf7a04e8 | 2146 | |
9b409511 | 2147 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2148 | return xfered; |
9b409511 | 2149 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2150 | return -1; |
cf7a04e8 | 2151 | |
9b409511 | 2152 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2153 | if (progress) |
9b409511 | 2154 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2155 | |
9b409511 | 2156 | xfered += xfered_len; |
1e3ff5ad AC |
2157 | QUIT; |
2158 | } | |
2159 | return len; | |
2160 | } | |
2161 | ||
7f79c47e DE |
2162 | /* For docs on target_write see target.h. */ |
2163 | ||
cf7a04e8 DJ |
2164 | LONGEST |
2165 | target_write (struct target_ops *ops, | |
2166 | enum target_object object, | |
2167 | const char *annex, const gdb_byte *buf, | |
2168 | ULONGEST offset, LONGEST len) | |
2169 | { | |
2170 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2171 | NULL, NULL); | |
2172 | } | |
2173 | ||
159f81f3 DJ |
2174 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2175 | the size of the transferred data. PADDING additional bytes are | |
2176 | available in *BUF_P. This is a helper function for | |
2177 | target_read_alloc; see the declaration of that function for more | |
2178 | information. */ | |
13547ab6 | 2179 | |
159f81f3 DJ |
2180 | static LONGEST |
2181 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2182 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2183 | { |
2184 | size_t buf_alloc, buf_pos; | |
2185 | gdb_byte *buf; | |
13547ab6 DJ |
2186 | |
2187 | /* This function does not have a length parameter; it reads the | |
2188 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2189 | from one target and partly from another (in a different stratum, | |
2190 | e.g. a core file and an executable). Both reasons make it | |
2191 | unsuitable for reading memory. */ | |
2192 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2193 | ||
2194 | /* Start by reading up to 4K at a time. The target will throttle | |
2195 | this number down if necessary. */ | |
2196 | buf_alloc = 4096; | |
2197 | buf = xmalloc (buf_alloc); | |
2198 | buf_pos = 0; | |
2199 | while (1) | |
2200 | { | |
9b409511 YQ |
2201 | ULONGEST xfered_len; |
2202 | enum target_xfer_status status; | |
2203 | ||
2204 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2205 | buf_pos, buf_alloc - buf_pos - padding, | |
2206 | &xfered_len); | |
2207 | ||
2208 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2209 | { |
2210 | /* Read all there was. */ | |
2211 | if (buf_pos == 0) | |
2212 | xfree (buf); | |
2213 | else | |
2214 | *buf_p = buf; | |
2215 | return buf_pos; | |
2216 | } | |
9b409511 YQ |
2217 | else if (status != TARGET_XFER_OK) |
2218 | { | |
2219 | /* An error occurred. */ | |
2220 | xfree (buf); | |
2221 | return TARGET_XFER_E_IO; | |
2222 | } | |
13547ab6 | 2223 | |
9b409511 | 2224 | buf_pos += xfered_len; |
13547ab6 DJ |
2225 | |
2226 | /* If the buffer is filling up, expand it. */ | |
2227 | if (buf_alloc < buf_pos * 2) | |
2228 | { | |
2229 | buf_alloc *= 2; | |
2230 | buf = xrealloc (buf, buf_alloc); | |
2231 | } | |
2232 | ||
2233 | QUIT; | |
2234 | } | |
2235 | } | |
2236 | ||
159f81f3 DJ |
2237 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2238 | the size of the transferred data. See the declaration in "target.h" | |
2239 | function for more information about the return value. */ | |
2240 | ||
2241 | LONGEST | |
2242 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2243 | const char *annex, gdb_byte **buf_p) | |
2244 | { | |
2245 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2246 | } | |
2247 | ||
2248 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2249 | returned as a string, allocated using xmalloc. If an error occurs | |
2250 | or the transfer is unsupported, NULL is returned. Empty objects | |
2251 | are returned as allocated but empty strings. A warning is issued | |
2252 | if the result contains any embedded NUL bytes. */ | |
2253 | ||
2254 | char * | |
2255 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2256 | const char *annex) | |
2257 | { | |
39086a0e PA |
2258 | gdb_byte *buffer; |
2259 | char *bufstr; | |
7313baad | 2260 | LONGEST i, transferred; |
159f81f3 | 2261 | |
39086a0e PA |
2262 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2263 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2264 | |
2265 | if (transferred < 0) | |
2266 | return NULL; | |
2267 | ||
2268 | if (transferred == 0) | |
2269 | return xstrdup (""); | |
2270 | ||
39086a0e | 2271 | bufstr[transferred] = 0; |
7313baad UW |
2272 | |
2273 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2274 | for (i = strlen (bufstr); i < transferred; i++) |
2275 | if (bufstr[i] != 0) | |
7313baad UW |
2276 | { |
2277 | warning (_("target object %d, annex %s, " | |
2278 | "contained unexpected null characters"), | |
2279 | (int) object, annex ? annex : "(none)"); | |
2280 | break; | |
2281 | } | |
159f81f3 | 2282 | |
39086a0e | 2283 | return bufstr; |
159f81f3 DJ |
2284 | } |
2285 | ||
b6591e8b AC |
2286 | /* Memory transfer methods. */ |
2287 | ||
2288 | void | |
1b0ba102 | 2289 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2290 | LONGEST len) |
2291 | { | |
07b82ea5 PA |
2292 | /* This method is used to read from an alternate, non-current |
2293 | target. This read must bypass the overlay support (as symbols | |
2294 | don't match this target), and GDB's internal cache (wrong cache | |
2295 | for this target). */ | |
2296 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2297 | != len) |
578d3588 | 2298 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2299 | } |
2300 | ||
2301 | ULONGEST | |
5d502164 MS |
2302 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2303 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2304 | { |
f6519ebc | 2305 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2306 | |
2307 | gdb_assert (len <= sizeof (buf)); | |
2308 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2309 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2310 | } |
2311 | ||
3db08215 MM |
2312 | /* See target.h. */ |
2313 | ||
d914c394 SS |
2314 | int |
2315 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2316 | struct bp_target_info *bp_tgt) | |
2317 | { | |
2318 | if (!may_insert_breakpoints) | |
2319 | { | |
2320 | warning (_("May not insert breakpoints")); | |
2321 | return 1; | |
2322 | } | |
2323 | ||
6b84065d TT |
2324 | return current_target.to_insert_breakpoint (¤t_target, |
2325 | gdbarch, bp_tgt); | |
d914c394 SS |
2326 | } |
2327 | ||
3db08215 MM |
2328 | /* See target.h. */ |
2329 | ||
d914c394 | 2330 | int |
6b84065d TT |
2331 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2332 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2333 | { |
2334 | /* This is kind of a weird case to handle, but the permission might | |
2335 | have been changed after breakpoints were inserted - in which case | |
2336 | we should just take the user literally and assume that any | |
2337 | breakpoints should be left in place. */ | |
2338 | if (!may_insert_breakpoints) | |
2339 | { | |
2340 | warning (_("May not remove breakpoints")); | |
2341 | return 1; | |
2342 | } | |
2343 | ||
6b84065d TT |
2344 | return current_target.to_remove_breakpoint (¤t_target, |
2345 | gdbarch, bp_tgt); | |
d914c394 SS |
2346 | } |
2347 | ||
c906108c | 2348 | static void |
fba45db2 | 2349 | target_info (char *args, int from_tty) |
c906108c SS |
2350 | { |
2351 | struct target_ops *t; | |
c906108c | 2352 | int has_all_mem = 0; |
c5aa993b | 2353 | |
c906108c | 2354 | if (symfile_objfile != NULL) |
4262abfb JK |
2355 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2356 | objfile_name (symfile_objfile)); | |
c906108c | 2357 | |
258b763a | 2358 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2359 | { |
c35b1492 | 2360 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2361 | continue; |
2362 | ||
c5aa993b | 2363 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2364 | continue; |
2365 | if (has_all_mem) | |
3e43a32a MS |
2366 | printf_unfiltered (_("\tWhile running this, " |
2367 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2368 | printf_unfiltered ("%s:\n", t->to_longname); |
2369 | (t->to_files_info) (t); | |
c35b1492 | 2370 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2371 | } |
2372 | } | |
2373 | ||
fd79ecee DJ |
2374 | /* This function is called before any new inferior is created, e.g. |
2375 | by running a program, attaching, or connecting to a target. | |
2376 | It cleans up any state from previous invocations which might | |
2377 | change between runs. This is a subset of what target_preopen | |
2378 | resets (things which might change between targets). */ | |
2379 | ||
2380 | void | |
2381 | target_pre_inferior (int from_tty) | |
2382 | { | |
c378eb4e | 2383 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2384 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2385 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2386 | to reproduce: |
2387 | ||
2388 | bash$ ./foo& | |
2389 | [1] 4711 | |
2390 | bash$ ./foo& | |
2391 | [1] 4712 | |
2392 | bash$ gdb ./foo | |
2393 | [...] | |
2394 | (gdb) attach 4711 | |
2395 | (gdb) detach | |
2396 | (gdb) attach 4712 | |
2397 | Cannot access memory at address 0xdeadbeef | |
2398 | */ | |
b9db4ced | 2399 | |
50c71eaf PA |
2400 | /* In some OSs, the shared library list is the same/global/shared |
2401 | across inferiors. If code is shared between processes, so are | |
2402 | memory regions and features. */ | |
f5656ead | 2403 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2404 | { |
2405 | no_shared_libraries (NULL, from_tty); | |
2406 | ||
2407 | invalidate_target_mem_regions (); | |
424163ea | 2408 | |
50c71eaf PA |
2409 | target_clear_description (); |
2410 | } | |
8ffcbaaf YQ |
2411 | |
2412 | agent_capability_invalidate (); | |
fd79ecee DJ |
2413 | } |
2414 | ||
b8fa0bfa PA |
2415 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2416 | inferior. */ | |
2417 | ||
2418 | static int | |
2419 | dispose_inferior (struct inferior *inf, void *args) | |
2420 | { | |
2421 | struct thread_info *thread; | |
2422 | ||
2423 | thread = any_thread_of_process (inf->pid); | |
2424 | if (thread) | |
2425 | { | |
2426 | switch_to_thread (thread->ptid); | |
2427 | ||
2428 | /* Core inferiors actually should be detached, not killed. */ | |
2429 | if (target_has_execution) | |
2430 | target_kill (); | |
2431 | else | |
2432 | target_detach (NULL, 0); | |
2433 | } | |
2434 | ||
2435 | return 0; | |
2436 | } | |
2437 | ||
c906108c SS |
2438 | /* This is to be called by the open routine before it does |
2439 | anything. */ | |
2440 | ||
2441 | void | |
fba45db2 | 2442 | target_preopen (int from_tty) |
c906108c | 2443 | { |
c5aa993b | 2444 | dont_repeat (); |
c906108c | 2445 | |
b8fa0bfa | 2446 | if (have_inferiors ()) |
c5aa993b | 2447 | { |
adf40b2e | 2448 | if (!from_tty |
b8fa0bfa PA |
2449 | || !have_live_inferiors () |
2450 | || query (_("A program is being debugged already. Kill it? "))) | |
2451 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2452 | else |
8a3fe4f8 | 2453 | error (_("Program not killed.")); |
c906108c SS |
2454 | } |
2455 | ||
2456 | /* Calling target_kill may remove the target from the stack. But if | |
2457 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2458 | /* Leave the exec target, though. The user may be switching from a |
2459 | live process to a core of the same program. */ | |
460014f5 | 2460 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2461 | |
2462 | target_pre_inferior (from_tty); | |
c906108c SS |
2463 | } |
2464 | ||
2465 | /* Detach a target after doing deferred register stores. */ | |
2466 | ||
2467 | void | |
52554a0e | 2468 | target_detach (const char *args, int from_tty) |
c906108c | 2469 | { |
136d6dae VP |
2470 | struct target_ops* t; |
2471 | ||
f5656ead | 2472 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2473 | /* Don't remove global breakpoints here. They're removed on |
2474 | disconnection from the target. */ | |
2475 | ; | |
2476 | else | |
2477 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2478 | them before detaching. */ | |
dfd4cc63 | 2479 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2480 | |
24291992 PA |
2481 | prepare_for_detach (); |
2482 | ||
09da0d0a TT |
2483 | current_target.to_detach (¤t_target, args, from_tty); |
2484 | if (targetdebug) | |
2485 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2486 | args, from_tty); | |
c906108c SS |
2487 | } |
2488 | ||
6ad8ae5c DJ |
2489 | void |
2490 | target_disconnect (char *args, int from_tty) | |
2491 | { | |
597320e7 DJ |
2492 | struct target_ops *t; |
2493 | ||
50c71eaf PA |
2494 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2495 | are global across processes, we have to remove them before | |
2496 | disconnecting. */ | |
74960c60 VP |
2497 | remove_breakpoints (); |
2498 | ||
597320e7 DJ |
2499 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2500 | if (t->to_disconnect != NULL) | |
2501 | { | |
2502 | if (targetdebug) | |
2503 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2504 | args, from_tty); | |
2505 | t->to_disconnect (t, args, from_tty); | |
2506 | return; | |
2507 | } | |
2508 | ||
2509 | tcomplain (); | |
6ad8ae5c DJ |
2510 | } |
2511 | ||
117de6a9 | 2512 | ptid_t |
47608cb1 | 2513 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2514 | { |
2515 | struct target_ops *t; | |
6b84065d TT |
2516 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2517 | status, options); | |
117de6a9 | 2518 | |
6b84065d | 2519 | if (targetdebug) |
117de6a9 | 2520 | { |
6b84065d TT |
2521 | char *status_string; |
2522 | char *options_string; | |
117de6a9 | 2523 | |
6b84065d TT |
2524 | status_string = target_waitstatus_to_string (status); |
2525 | options_string = target_options_to_string (options); | |
2526 | fprintf_unfiltered (gdb_stdlog, | |
2527 | "target_wait (%d, status, options={%s})" | |
2528 | " = %d, %s\n", | |
2529 | ptid_get_pid (ptid), options_string, | |
2530 | ptid_get_pid (retval), status_string); | |
2531 | xfree (status_string); | |
2532 | xfree (options_string); | |
117de6a9 PA |
2533 | } |
2534 | ||
6b84065d | 2535 | return retval; |
117de6a9 PA |
2536 | } |
2537 | ||
2538 | char * | |
2539 | target_pid_to_str (ptid_t ptid) | |
2540 | { | |
2541 | struct target_ops *t; | |
2542 | ||
2543 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2544 | { | |
2545 | if (t->to_pid_to_str != NULL) | |
2546 | return (*t->to_pid_to_str) (t, ptid); | |
2547 | } | |
2548 | ||
2549 | return normal_pid_to_str (ptid); | |
2550 | } | |
2551 | ||
4694da01 TT |
2552 | char * |
2553 | target_thread_name (struct thread_info *info) | |
2554 | { | |
825828fc | 2555 | return current_target.to_thread_name (¤t_target, info); |
4694da01 TT |
2556 | } |
2557 | ||
e1ac3328 | 2558 | void |
2ea28649 | 2559 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2560 | { |
28439f5e PA |
2561 | struct target_ops *t; |
2562 | ||
4e5d721f | 2563 | target_dcache_invalidate (); |
28439f5e | 2564 | |
6b84065d TT |
2565 | current_target.to_resume (¤t_target, ptid, step, signal); |
2566 | if (targetdebug) | |
2567 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2568 | ptid_get_pid (ptid), | |
2569 | step ? "step" : "continue", | |
2570 | gdb_signal_to_name (signal)); | |
28439f5e | 2571 | |
6b84065d TT |
2572 | registers_changed_ptid (ptid); |
2573 | set_executing (ptid, 1); | |
2574 | set_running (ptid, 1); | |
2575 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2576 | } |
2455069d UW |
2577 | |
2578 | void | |
2579 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2580 | { | |
2581 | struct target_ops *t; | |
2582 | ||
2583 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2584 | { | |
2585 | if (t->to_pass_signals != NULL) | |
2586 | { | |
2587 | if (targetdebug) | |
2588 | { | |
2589 | int i; | |
2590 | ||
2591 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2592 | numsigs); | |
2593 | ||
2594 | for (i = 0; i < numsigs; i++) | |
2595 | if (pass_signals[i]) | |
2596 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2597 | gdb_signal_to_name (i)); |
2455069d UW |
2598 | |
2599 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2600 | } | |
2601 | ||
94bedb42 | 2602 | (*t->to_pass_signals) (t, numsigs, pass_signals); |
2455069d UW |
2603 | return; |
2604 | } | |
2605 | } | |
2606 | } | |
2607 | ||
9b224c5e PA |
2608 | void |
2609 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2610 | { | |
2611 | struct target_ops *t; | |
2612 | ||
2613 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2614 | { | |
2615 | if (t->to_program_signals != NULL) | |
2616 | { | |
2617 | if (targetdebug) | |
2618 | { | |
2619 | int i; | |
2620 | ||
2621 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2622 | numsigs); | |
2623 | ||
2624 | for (i = 0; i < numsigs; i++) | |
2625 | if (program_signals[i]) | |
2626 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2627 | gdb_signal_to_name (i)); |
9b224c5e PA |
2628 | |
2629 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2630 | } | |
2631 | ||
daf5e9b6 | 2632 | (*t->to_program_signals) (t, numsigs, program_signals); |
9b224c5e PA |
2633 | return; |
2634 | } | |
2635 | } | |
2636 | } | |
2637 | ||
098dba18 TT |
2638 | static int |
2639 | default_follow_fork (struct target_ops *self, int follow_child, | |
2640 | int detach_fork) | |
2641 | { | |
2642 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2643 | internal_error (__FILE__, __LINE__, | |
2644 | _("could not find a target to follow fork")); | |
2645 | } | |
2646 | ||
ee057212 DJ |
2647 | /* Look through the list of possible targets for a target that can |
2648 | follow forks. */ | |
2649 | ||
2650 | int | |
07107ca6 | 2651 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 | 2652 | { |
098dba18 TT |
2653 | int retval = current_target.to_follow_fork (¤t_target, |
2654 | follow_child, detach_fork); | |
ee057212 | 2655 | |
098dba18 TT |
2656 | if (targetdebug) |
2657 | fprintf_unfiltered (gdb_stdlog, | |
2658 | "target_follow_fork (%d, %d) = %d\n", | |
2659 | follow_child, detach_fork, retval); | |
2660 | return retval; | |
ee057212 DJ |
2661 | } |
2662 | ||
136d6dae VP |
2663 | void |
2664 | target_mourn_inferior (void) | |
2665 | { | |
2666 | struct target_ops *t; | |
5d502164 | 2667 | |
136d6dae VP |
2668 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2669 | { | |
2670 | if (t->to_mourn_inferior != NULL) | |
2671 | { | |
2672 | t->to_mourn_inferior (t); | |
947b8855 PA |
2673 | if (targetdebug) |
2674 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2675 | |
2676 | /* We no longer need to keep handles on any of the object files. | |
2677 | Make sure to release them to avoid unnecessarily locking any | |
2678 | of them while we're not actually debugging. */ | |
2679 | bfd_cache_close_all (); | |
2680 | ||
136d6dae VP |
2681 | return; |
2682 | } | |
2683 | } | |
2684 | ||
2685 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2686 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2687 | } |
2688 | ||
424163ea DJ |
2689 | /* Look for a target which can describe architectural features, starting |
2690 | from TARGET. If we find one, return its description. */ | |
2691 | ||
2692 | const struct target_desc * | |
2693 | target_read_description (struct target_ops *target) | |
2694 | { | |
2695 | struct target_ops *t; | |
2696 | ||
2697 | for (t = target; t != NULL; t = t->beneath) | |
2698 | if (t->to_read_description != NULL) | |
2699 | { | |
2700 | const struct target_desc *tdesc; | |
2701 | ||
2702 | tdesc = t->to_read_description (t); | |
2703 | if (tdesc) | |
2704 | return tdesc; | |
2705 | } | |
2706 | ||
2707 | return NULL; | |
2708 | } | |
2709 | ||
08388c79 DE |
2710 | /* The default implementation of to_search_memory. |
2711 | This implements a basic search of memory, reading target memory and | |
2712 | performing the search here (as opposed to performing the search in on the | |
2713 | target side with, for example, gdbserver). */ | |
2714 | ||
2715 | int | |
2716 | simple_search_memory (struct target_ops *ops, | |
2717 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2718 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2719 | CORE_ADDR *found_addrp) | |
2720 | { | |
2721 | /* NOTE: also defined in find.c testcase. */ | |
2722 | #define SEARCH_CHUNK_SIZE 16000 | |
2723 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2724 | /* Buffer to hold memory contents for searching. */ | |
2725 | gdb_byte *search_buf; | |
2726 | unsigned search_buf_size; | |
2727 | struct cleanup *old_cleanups; | |
2728 | ||
2729 | search_buf_size = chunk_size + pattern_len - 1; | |
2730 | ||
2731 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2732 | if (search_space_len < search_buf_size) | |
2733 | search_buf_size = search_space_len; | |
2734 | ||
2735 | search_buf = malloc (search_buf_size); | |
2736 | if (search_buf == NULL) | |
5e1471f5 | 2737 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2738 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2739 | ||
2740 | /* Prime the search buffer. */ | |
2741 | ||
2742 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2743 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2744 | { | |
b3dc46ff AB |
2745 | warning (_("Unable to access %s bytes of target " |
2746 | "memory at %s, halting search."), | |
2747 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2748 | do_cleanups (old_cleanups); |
2749 | return -1; | |
2750 | } | |
2751 | ||
2752 | /* Perform the search. | |
2753 | ||
2754 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2755 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2756 | read in another N bytes. */ | |
2757 | ||
2758 | while (search_space_len >= pattern_len) | |
2759 | { | |
2760 | gdb_byte *found_ptr; | |
2761 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2762 | ||
2763 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2764 | pattern, pattern_len); | |
2765 | ||
2766 | if (found_ptr != NULL) | |
2767 | { | |
2768 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2769 | |
08388c79 DE |
2770 | *found_addrp = found_addr; |
2771 | do_cleanups (old_cleanups); | |
2772 | return 1; | |
2773 | } | |
2774 | ||
2775 | /* Not found in this chunk, skip to next chunk. */ | |
2776 | ||
2777 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2778 | if (search_space_len >= chunk_size) | |
2779 | search_space_len -= chunk_size; | |
2780 | else | |
2781 | search_space_len = 0; | |
2782 | ||
2783 | if (search_space_len >= pattern_len) | |
2784 | { | |
2785 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2786 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2787 | int nr_to_read; |
2788 | ||
2789 | /* Copy the trailing part of the previous iteration to the front | |
2790 | of the buffer for the next iteration. */ | |
2791 | gdb_assert (keep_len == pattern_len - 1); | |
2792 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2793 | ||
2794 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2795 | ||
2796 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2797 | search_buf + keep_len, read_addr, | |
2798 | nr_to_read) != nr_to_read) | |
2799 | { | |
b3dc46ff | 2800 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2801 | "memory at %s, halting search."), |
b3dc46ff | 2802 | plongest (nr_to_read), |
08388c79 DE |
2803 | hex_string (read_addr)); |
2804 | do_cleanups (old_cleanups); | |
2805 | return -1; | |
2806 | } | |
2807 | ||
2808 | start_addr += chunk_size; | |
2809 | } | |
2810 | } | |
2811 | ||
2812 | /* Not found. */ | |
2813 | ||
2814 | do_cleanups (old_cleanups); | |
2815 | return 0; | |
2816 | } | |
2817 | ||
2818 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2819 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2820 | ||
2821 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2822 | requiring halting of the search (e.g. memory read error). | |
2823 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2824 | ||
2825 | int | |
2826 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2827 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2828 | CORE_ADDR *found_addrp) | |
2829 | { | |
2830 | struct target_ops *t; | |
2831 | int found; | |
2832 | ||
2833 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2834 | so we have to scan the target stack and handle targetdebug | |
2835 | ourselves. */ | |
2836 | ||
2837 | if (targetdebug) | |
2838 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2839 | hex_string (start_addr)); | |
2840 | ||
2841 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2842 | if (t->to_search_memory != NULL) | |
2843 | break; | |
2844 | ||
2845 | if (t != NULL) | |
2846 | { | |
2847 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2848 | pattern, pattern_len, found_addrp); | |
2849 | } | |
2850 | else | |
2851 | { | |
2852 | /* If a special version of to_search_memory isn't available, use the | |
2853 | simple version. */ | |
c35b1492 | 2854 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2855 | start_addr, search_space_len, |
2856 | pattern, pattern_len, found_addrp); | |
2857 | } | |
2858 | ||
2859 | if (targetdebug) | |
2860 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2861 | ||
2862 | return found; | |
2863 | } | |
2864 | ||
8edfe269 DJ |
2865 | /* Look through the currently pushed targets. If none of them will |
2866 | be able to restart the currently running process, issue an error | |
2867 | message. */ | |
2868 | ||
2869 | void | |
2870 | target_require_runnable (void) | |
2871 | { | |
2872 | struct target_ops *t; | |
2873 | ||
2874 | for (t = target_stack; t != NULL; t = t->beneath) | |
2875 | { | |
2876 | /* If this target knows how to create a new program, then | |
2877 | assume we will still be able to after killing the current | |
2878 | one. Either killing and mourning will not pop T, or else | |
2879 | find_default_run_target will find it again. */ | |
2880 | if (t->to_create_inferior != NULL) | |
2881 | return; | |
2882 | ||
2883 | /* Do not worry about thread_stratum targets that can not | |
2884 | create inferiors. Assume they will be pushed again if | |
2885 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2886 | if (t->to_stratum == thread_stratum |
2887 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2888 | continue; |
2889 | ||
3e43a32a MS |
2890 | error (_("The \"%s\" target does not support \"run\". " |
2891 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2892 | t->to_shortname); |
2893 | } | |
2894 | ||
2895 | /* This function is only called if the target is running. In that | |
2896 | case there should have been a process_stratum target and it | |
c378eb4e | 2897 | should either know how to create inferiors, or not... */ |
9b20d036 | 2898 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2899 | } |
2900 | ||
c906108c SS |
2901 | /* Look through the list of possible targets for a target that can |
2902 | execute a run or attach command without any other data. This is | |
2903 | used to locate the default process stratum. | |
2904 | ||
5f667f2d PA |
2905 | If DO_MESG is not NULL, the result is always valid (error() is |
2906 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2907 | |
2908 | static struct target_ops * | |
fba45db2 | 2909 | find_default_run_target (char *do_mesg) |
c906108c SS |
2910 | { |
2911 | struct target_ops **t; | |
2912 | struct target_ops *runable = NULL; | |
2913 | int count; | |
2914 | ||
2915 | count = 0; | |
2916 | ||
2917 | for (t = target_structs; t < target_structs + target_struct_size; | |
2918 | ++t) | |
2919 | { | |
c5aa993b | 2920 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2921 | { |
2922 | runable = *t; | |
2923 | ++count; | |
2924 | } | |
2925 | } | |
2926 | ||
2927 | if (count != 1) | |
5f667f2d PA |
2928 | { |
2929 | if (do_mesg) | |
2930 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2931 | else | |
2932 | return NULL; | |
2933 | } | |
c906108c SS |
2934 | |
2935 | return runable; | |
2936 | } | |
2937 | ||
2938 | void | |
136d6dae | 2939 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2940 | { |
2941 | struct target_ops *t; | |
2942 | ||
c5aa993b | 2943 | t = find_default_run_target ("attach"); |
136d6dae | 2944 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2945 | return; |
2946 | } | |
2947 | ||
c906108c | 2948 | void |
136d6dae VP |
2949 | find_default_create_inferior (struct target_ops *ops, |
2950 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2951 | int from_tty) |
c906108c SS |
2952 | { |
2953 | struct target_ops *t; | |
2954 | ||
c5aa993b | 2955 | t = find_default_run_target ("run"); |
136d6dae | 2956 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
2957 | return; |
2958 | } | |
2959 | ||
2c0b251b | 2960 | static int |
6a109b6b | 2961 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
2962 | { |
2963 | struct target_ops *t; | |
2964 | ||
5f667f2d PA |
2965 | /* This may be called before the target is pushed on the stack; |
2966 | look for the default process stratum. If there's none, gdb isn't | |
2967 | configured with a native debugger, and target remote isn't | |
2968 | connected yet. */ | |
2969 | t = find_default_run_target (NULL); | |
6b84065d | 2970 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 2971 | return (t->to_can_async_p) (t); |
b84876c2 PA |
2972 | return 0; |
2973 | } | |
2974 | ||
2c0b251b | 2975 | static int |
6a109b6b | 2976 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
2977 | { |
2978 | struct target_ops *t; | |
2979 | ||
5f667f2d PA |
2980 | /* This may be called before the target is pushed on the stack; |
2981 | look for the default process stratum. If there's none, gdb isn't | |
2982 | configured with a native debugger, and target remote isn't | |
2983 | connected yet. */ | |
2984 | t = find_default_run_target (NULL); | |
6b84065d | 2985 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 2986 | return (t->to_is_async_p) (t); |
b84876c2 PA |
2987 | return 0; |
2988 | } | |
2989 | ||
2c0b251b | 2990 | static int |
2a9a2795 | 2991 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
2992 | { |
2993 | struct target_ops *t; | |
2994 | ||
2995 | t = find_default_run_target (NULL); | |
2996 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 2997 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
2998 | return 0; |
2999 | } | |
3000 | ||
3001 | int | |
2c0b251b | 3002 | target_supports_non_stop (void) |
9908b566 VP |
3003 | { |
3004 | struct target_ops *t; | |
5d502164 | 3005 | |
9908b566 VP |
3006 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3007 | if (t->to_supports_non_stop) | |
2a9a2795 | 3008 | return t->to_supports_non_stop (t); |
9908b566 VP |
3009 | |
3010 | return 0; | |
3011 | } | |
3012 | ||
145b16a9 UW |
3013 | /* Implement the "info proc" command. */ |
3014 | ||
451b7c33 | 3015 | int |
145b16a9 UW |
3016 | target_info_proc (char *args, enum info_proc_what what) |
3017 | { | |
3018 | struct target_ops *t; | |
3019 | ||
3020 | /* If we're already connected to something that can get us OS | |
3021 | related data, use it. Otherwise, try using the native | |
3022 | target. */ | |
3023 | if (current_target.to_stratum >= process_stratum) | |
3024 | t = current_target.beneath; | |
3025 | else | |
3026 | t = find_default_run_target (NULL); | |
3027 | ||
3028 | for (; t != NULL; t = t->beneath) | |
3029 | { | |
3030 | if (t->to_info_proc != NULL) | |
3031 | { | |
3032 | t->to_info_proc (t, args, what); | |
3033 | ||
3034 | if (targetdebug) | |
3035 | fprintf_unfiltered (gdb_stdlog, | |
3036 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3037 | ||
451b7c33 | 3038 | return 1; |
145b16a9 UW |
3039 | } |
3040 | } | |
3041 | ||
451b7c33 | 3042 | return 0; |
145b16a9 UW |
3043 | } |
3044 | ||
03583c20 | 3045 | static int |
2bfc0540 | 3046 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
3047 | { |
3048 | struct target_ops *t; | |
3049 | ||
3050 | t = find_default_run_target (NULL); | |
3051 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 3052 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
3053 | return 0; |
3054 | } | |
3055 | ||
3056 | int | |
3057 | target_supports_disable_randomization (void) | |
3058 | { | |
3059 | struct target_ops *t; | |
3060 | ||
3061 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3062 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 3063 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
3064 | |
3065 | return 0; | |
3066 | } | |
9908b566 | 3067 | |
07e059b5 VP |
3068 | char * |
3069 | target_get_osdata (const char *type) | |
3070 | { | |
07e059b5 VP |
3071 | struct target_ops *t; |
3072 | ||
739ef7fb PA |
3073 | /* If we're already connected to something that can get us OS |
3074 | related data, use it. Otherwise, try using the native | |
3075 | target. */ | |
3076 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3077 | t = current_target.beneath; |
739ef7fb PA |
3078 | else |
3079 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3080 | |
3081 | if (!t) | |
3082 | return NULL; | |
3083 | ||
6d097e65 | 3084 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3085 | } |
3086 | ||
6c95b8df PA |
3087 | /* Determine the current address space of thread PTID. */ |
3088 | ||
3089 | struct address_space * | |
3090 | target_thread_address_space (ptid_t ptid) | |
3091 | { | |
c0694254 | 3092 | struct address_space *aspace; |
6c95b8df | 3093 | struct inferior *inf; |
c0694254 PA |
3094 | struct target_ops *t; |
3095 | ||
3096 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3097 | { | |
3098 | if (t->to_thread_address_space != NULL) | |
3099 | { | |
3100 | aspace = t->to_thread_address_space (t, ptid); | |
3101 | gdb_assert (aspace); | |
6c95b8df | 3102 | |
c0694254 PA |
3103 | if (targetdebug) |
3104 | fprintf_unfiltered (gdb_stdlog, | |
3105 | "target_thread_address_space (%s) = %d\n", | |
3106 | target_pid_to_str (ptid), | |
3107 | address_space_num (aspace)); | |
3108 | return aspace; | |
3109 | } | |
3110 | } | |
6c95b8df PA |
3111 | |
3112 | /* Fall-back to the "main" address space of the inferior. */ | |
3113 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3114 | ||
3115 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3116 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3117 | _("Can't determine the current " |
3118 | "address space of thread %s\n"), | |
6c95b8df PA |
3119 | target_pid_to_str (ptid)); |
3120 | ||
3121 | return inf->aspace; | |
3122 | } | |
3123 | ||
7313baad UW |
3124 | |
3125 | /* Target file operations. */ | |
3126 | ||
3127 | static struct target_ops * | |
3128 | default_fileio_target (void) | |
3129 | { | |
3130 | /* If we're already connected to something that can perform | |
3131 | file I/O, use it. Otherwise, try using the native target. */ | |
3132 | if (current_target.to_stratum >= process_stratum) | |
3133 | return current_target.beneath; | |
3134 | else | |
3135 | return find_default_run_target ("file I/O"); | |
3136 | } | |
3137 | ||
3138 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3139 | target file descriptor, or -1 if an error occurs (and set | |
3140 | *TARGET_ERRNO). */ | |
3141 | int | |
3142 | target_fileio_open (const char *filename, int flags, int mode, | |
3143 | int *target_errno) | |
3144 | { | |
3145 | struct target_ops *t; | |
3146 | ||
3147 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3148 | { | |
3149 | if (t->to_fileio_open != NULL) | |
3150 | { | |
cd897586 | 3151 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
3152 | |
3153 | if (targetdebug) | |
3154 | fprintf_unfiltered (gdb_stdlog, | |
3155 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3156 | filename, flags, mode, | |
3157 | fd, fd != -1 ? 0 : *target_errno); | |
3158 | return fd; | |
3159 | } | |
3160 | } | |
3161 | ||
3162 | *target_errno = FILEIO_ENOSYS; | |
3163 | return -1; | |
3164 | } | |
3165 | ||
3166 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3167 | Return the number of bytes written, or -1 if an error occurs | |
3168 | (and set *TARGET_ERRNO). */ | |
3169 | int | |
3170 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3171 | ULONGEST offset, int *target_errno) | |
3172 | { | |
3173 | struct target_ops *t; | |
3174 | ||
3175 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3176 | { | |
3177 | if (t->to_fileio_pwrite != NULL) | |
3178 | { | |
0d866f62 | 3179 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
3180 | target_errno); |
3181 | ||
3182 | if (targetdebug) | |
3183 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3184 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3185 | "= %d (%d)\n", |
a71b5a38 | 3186 | fd, len, pulongest (offset), |
7313baad UW |
3187 | ret, ret != -1 ? 0 : *target_errno); |
3188 | return ret; | |
3189 | } | |
3190 | } | |
3191 | ||
3192 | *target_errno = FILEIO_ENOSYS; | |
3193 | return -1; | |
3194 | } | |
3195 | ||
3196 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3197 | Return the number of bytes read, or -1 if an error occurs | |
3198 | (and set *TARGET_ERRNO). */ | |
3199 | int | |
3200 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3201 | ULONGEST offset, int *target_errno) | |
3202 | { | |
3203 | struct target_ops *t; | |
3204 | ||
3205 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3206 | { | |
3207 | if (t->to_fileio_pread != NULL) | |
3208 | { | |
a3be983c | 3209 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
3210 | target_errno); |
3211 | ||
3212 | if (targetdebug) | |
3213 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3214 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3215 | "= %d (%d)\n", |
a71b5a38 | 3216 | fd, len, pulongest (offset), |
7313baad UW |
3217 | ret, ret != -1 ? 0 : *target_errno); |
3218 | return ret; | |
3219 | } | |
3220 | } | |
3221 | ||
3222 | *target_errno = FILEIO_ENOSYS; | |
3223 | return -1; | |
3224 | } | |
3225 | ||
3226 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3227 | (and set *TARGET_ERRNO). */ | |
3228 | int | |
3229 | target_fileio_close (int fd, int *target_errno) | |
3230 | { | |
3231 | struct target_ops *t; | |
3232 | ||
3233 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3234 | { | |
3235 | if (t->to_fileio_close != NULL) | |
3236 | { | |
df39ea25 | 3237 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
3238 | |
3239 | if (targetdebug) | |
3240 | fprintf_unfiltered (gdb_stdlog, | |
3241 | "target_fileio_close (%d) = %d (%d)\n", | |
3242 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3243 | return ret; | |
3244 | } | |
3245 | } | |
3246 | ||
3247 | *target_errno = FILEIO_ENOSYS; | |
3248 | return -1; | |
3249 | } | |
3250 | ||
3251 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3252 | occurs (and set *TARGET_ERRNO). */ | |
3253 | int | |
3254 | target_fileio_unlink (const char *filename, int *target_errno) | |
3255 | { | |
3256 | struct target_ops *t; | |
3257 | ||
3258 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3259 | { | |
3260 | if (t->to_fileio_unlink != NULL) | |
3261 | { | |
dbbca37d | 3262 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
3263 | |
3264 | if (targetdebug) | |
3265 | fprintf_unfiltered (gdb_stdlog, | |
3266 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3267 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3268 | return ret; | |
3269 | } | |
3270 | } | |
3271 | ||
3272 | *target_errno = FILEIO_ENOSYS; | |
3273 | return -1; | |
3274 | } | |
3275 | ||
b9e7b9c3 UW |
3276 | /* Read value of symbolic link FILENAME on the target. Return a |
3277 | null-terminated string allocated via xmalloc, or NULL if an error | |
3278 | occurs (and set *TARGET_ERRNO). */ | |
3279 | char * | |
3280 | target_fileio_readlink (const char *filename, int *target_errno) | |
3281 | { | |
3282 | struct target_ops *t; | |
3283 | ||
3284 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3285 | { | |
3286 | if (t->to_fileio_readlink != NULL) | |
3287 | { | |
fab5aa7c | 3288 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
3289 | |
3290 | if (targetdebug) | |
3291 | fprintf_unfiltered (gdb_stdlog, | |
3292 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3293 | filename, ret? ret : "(nil)", | |
3294 | ret? 0 : *target_errno); | |
3295 | return ret; | |
3296 | } | |
3297 | } | |
3298 | ||
3299 | *target_errno = FILEIO_ENOSYS; | |
3300 | return NULL; | |
3301 | } | |
3302 | ||
7313baad UW |
3303 | static void |
3304 | target_fileio_close_cleanup (void *opaque) | |
3305 | { | |
3306 | int fd = *(int *) opaque; | |
3307 | int target_errno; | |
3308 | ||
3309 | target_fileio_close (fd, &target_errno); | |
3310 | } | |
3311 | ||
3312 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3313 | return the size of the transferred data. PADDING additional bytes are | |
3314 | available in *BUF_P. This is a helper function for | |
3315 | target_fileio_read_alloc; see the declaration of that function for more | |
3316 | information. */ | |
3317 | ||
3318 | static LONGEST | |
3319 | target_fileio_read_alloc_1 (const char *filename, | |
3320 | gdb_byte **buf_p, int padding) | |
3321 | { | |
3322 | struct cleanup *close_cleanup; | |
3323 | size_t buf_alloc, buf_pos; | |
3324 | gdb_byte *buf; | |
3325 | LONGEST n; | |
3326 | int fd; | |
3327 | int target_errno; | |
3328 | ||
3329 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3330 | if (fd == -1) | |
3331 | return -1; | |
3332 | ||
3333 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3334 | ||
3335 | /* Start by reading up to 4K at a time. The target will throttle | |
3336 | this number down if necessary. */ | |
3337 | buf_alloc = 4096; | |
3338 | buf = xmalloc (buf_alloc); | |
3339 | buf_pos = 0; | |
3340 | while (1) | |
3341 | { | |
3342 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3343 | buf_alloc - buf_pos - padding, buf_pos, | |
3344 | &target_errno); | |
3345 | if (n < 0) | |
3346 | { | |
3347 | /* An error occurred. */ | |
3348 | do_cleanups (close_cleanup); | |
3349 | xfree (buf); | |
3350 | return -1; | |
3351 | } | |
3352 | else if (n == 0) | |
3353 | { | |
3354 | /* Read all there was. */ | |
3355 | do_cleanups (close_cleanup); | |
3356 | if (buf_pos == 0) | |
3357 | xfree (buf); | |
3358 | else | |
3359 | *buf_p = buf; | |
3360 | return buf_pos; | |
3361 | } | |
3362 | ||
3363 | buf_pos += n; | |
3364 | ||
3365 | /* If the buffer is filling up, expand it. */ | |
3366 | if (buf_alloc < buf_pos * 2) | |
3367 | { | |
3368 | buf_alloc *= 2; | |
3369 | buf = xrealloc (buf, buf_alloc); | |
3370 | } | |
3371 | ||
3372 | QUIT; | |
3373 | } | |
3374 | } | |
3375 | ||
3376 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3377 | the size of the transferred data. See the declaration in "target.h" | |
3378 | function for more information about the return value. */ | |
3379 | ||
3380 | LONGEST | |
3381 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3382 | { | |
3383 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3384 | } | |
3385 | ||
3386 | /* Read target file FILENAME. The result is NUL-terminated and | |
3387 | returned as a string, allocated using xmalloc. If an error occurs | |
3388 | or the transfer is unsupported, NULL is returned. Empty objects | |
3389 | are returned as allocated but empty strings. A warning is issued | |
3390 | if the result contains any embedded NUL bytes. */ | |
3391 | ||
3392 | char * | |
3393 | target_fileio_read_stralloc (const char *filename) | |
3394 | { | |
39086a0e PA |
3395 | gdb_byte *buffer; |
3396 | char *bufstr; | |
7313baad UW |
3397 | LONGEST i, transferred; |
3398 | ||
39086a0e PA |
3399 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3400 | bufstr = (char *) buffer; | |
7313baad UW |
3401 | |
3402 | if (transferred < 0) | |
3403 | return NULL; | |
3404 | ||
3405 | if (transferred == 0) | |
3406 | return xstrdup (""); | |
3407 | ||
39086a0e | 3408 | bufstr[transferred] = 0; |
7313baad UW |
3409 | |
3410 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3411 | for (i = strlen (bufstr); i < transferred; i++) |
3412 | if (bufstr[i] != 0) | |
7313baad UW |
3413 | { |
3414 | warning (_("target file %s " | |
3415 | "contained unexpected null characters"), | |
3416 | filename); | |
3417 | break; | |
3418 | } | |
3419 | ||
39086a0e | 3420 | return bufstr; |
7313baad UW |
3421 | } |
3422 | ||
3423 | ||
e0d24f8d | 3424 | static int |
31568a15 TT |
3425 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3426 | CORE_ADDR addr, int len) | |
e0d24f8d | 3427 | { |
f5656ead | 3428 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3429 | } |
3430 | ||
5009afc5 AS |
3431 | static int |
3432 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3433 | CORE_ADDR addr, | |
3434 | CORE_ADDR start, int length) | |
3435 | { | |
3436 | return addr >= start && addr < start + length; | |
3437 | } | |
3438 | ||
c2250ad1 UW |
3439 | static struct gdbarch * |
3440 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3441 | { | |
f5656ead | 3442 | return target_gdbarch (); |
c2250ad1 UW |
3443 | } |
3444 | ||
c906108c | 3445 | static int |
fba45db2 | 3446 | return_zero (void) |
c906108c SS |
3447 | { |
3448 | return 0; | |
3449 | } | |
3450 | ||
ed9a39eb JM |
3451 | /* |
3452 | * Find the next target down the stack from the specified target. | |
3453 | */ | |
3454 | ||
3455 | struct target_ops * | |
fba45db2 | 3456 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3457 | { |
258b763a | 3458 | return t->beneath; |
ed9a39eb JM |
3459 | } |
3460 | ||
8b06beed TT |
3461 | /* See target.h. */ |
3462 | ||
3463 | struct target_ops * | |
3464 | find_target_at (enum strata stratum) | |
3465 | { | |
3466 | struct target_ops *t; | |
3467 | ||
3468 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3469 | if (t->to_stratum == stratum) | |
3470 | return t; | |
3471 | ||
3472 | return NULL; | |
3473 | } | |
3474 | ||
c906108c SS |
3475 | \f |
3476 | /* The inferior process has died. Long live the inferior! */ | |
3477 | ||
3478 | void | |
fba45db2 | 3479 | generic_mourn_inferior (void) |
c906108c | 3480 | { |
7f9f62ba | 3481 | ptid_t ptid; |
c906108c | 3482 | |
7f9f62ba | 3483 | ptid = inferior_ptid; |
39f77062 | 3484 | inferior_ptid = null_ptid; |
7f9f62ba | 3485 | |
f59f708a PA |
3486 | /* Mark breakpoints uninserted in case something tries to delete a |
3487 | breakpoint while we delete the inferior's threads (which would | |
3488 | fail, since the inferior is long gone). */ | |
3489 | mark_breakpoints_out (); | |
3490 | ||
7f9f62ba PA |
3491 | if (!ptid_equal (ptid, null_ptid)) |
3492 | { | |
3493 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3494 | exit_inferior (pid); |
7f9f62ba PA |
3495 | } |
3496 | ||
f59f708a PA |
3497 | /* Note this wipes step-resume breakpoints, so needs to be done |
3498 | after exit_inferior, which ends up referencing the step-resume | |
3499 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3500 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3501 | |
c906108c SS |
3502 | registers_changed (); |
3503 | ||
c906108c SS |
3504 | reopen_exec_file (); |
3505 | reinit_frame_cache (); | |
3506 | ||
9a4105ab AC |
3507 | if (deprecated_detach_hook) |
3508 | deprecated_detach_hook (); | |
c906108c SS |
3509 | } |
3510 | \f | |
fd0a2a6f MK |
3511 | /* Convert a normal process ID to a string. Returns the string in a |
3512 | static buffer. */ | |
c906108c SS |
3513 | |
3514 | char * | |
39f77062 | 3515 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3516 | { |
fd0a2a6f | 3517 | static char buf[32]; |
c906108c | 3518 | |
5fff8fc0 | 3519 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3520 | return buf; |
3521 | } | |
3522 | ||
2c0b251b | 3523 | static char * |
117de6a9 PA |
3524 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3525 | { | |
3526 | return normal_pid_to_str (ptid); | |
3527 | } | |
3528 | ||
9b4eba8e HZ |
3529 | /* Error-catcher for target_find_memory_regions. */ |
3530 | static int | |
2e73927c TT |
3531 | dummy_find_memory_regions (struct target_ops *self, |
3532 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3533 | { |
9b4eba8e | 3534 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3535 | return 0; |
3536 | } | |
3537 | ||
9b4eba8e HZ |
3538 | /* Error-catcher for target_make_corefile_notes. */ |
3539 | static char * | |
fc6691b2 TT |
3540 | dummy_make_corefile_notes (struct target_ops *self, |
3541 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3542 | { |
9b4eba8e | 3543 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3544 | return NULL; |
3545 | } | |
3546 | ||
c906108c SS |
3547 | /* Set up the handful of non-empty slots needed by the dummy target |
3548 | vector. */ | |
3549 | ||
3550 | static void | |
fba45db2 | 3551 | init_dummy_target (void) |
c906108c SS |
3552 | { |
3553 | dummy_target.to_shortname = "None"; | |
3554 | dummy_target.to_longname = "None"; | |
3555 | dummy_target.to_doc = ""; | |
c906108c | 3556 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3557 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3558 | dummy_target.to_supports_disable_randomization |
3559 | = find_default_supports_disable_randomization; | |
117de6a9 | 3560 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3561 | dummy_target.to_stratum = dummy_stratum; |
c35b1492 PA |
3562 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3563 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3564 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3565 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3566 | dummy_target.to_has_execution |
3567 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3568 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3569 | |
3570 | install_dummy_methods (&dummy_target); | |
c906108c | 3571 | } |
c906108c | 3572 | \f |
c906108c | 3573 | static void |
fba45db2 | 3574 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3575 | { |
3576 | debug_target.to_open (args, from_tty); | |
3577 | ||
96baa820 | 3578 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3579 | } |
3580 | ||
f1c07ab0 | 3581 | void |
460014f5 | 3582 | target_close (struct target_ops *targ) |
f1c07ab0 | 3583 | { |
7fdc1521 TT |
3584 | gdb_assert (!target_is_pushed (targ)); |
3585 | ||
f1c07ab0 | 3586 | if (targ->to_xclose != NULL) |
460014f5 | 3587 | targ->to_xclose (targ); |
f1c07ab0 | 3588 | else if (targ->to_close != NULL) |
de90e03d | 3589 | targ->to_close (targ); |
947b8855 PA |
3590 | |
3591 | if (targetdebug) | |
460014f5 | 3592 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3593 | } |
3594 | ||
136d6dae VP |
3595 | void |
3596 | target_attach (char *args, int from_tty) | |
3597 | { | |
e9a29200 TT |
3598 | current_target.to_attach (¤t_target, args, from_tty); |
3599 | if (targetdebug) | |
3600 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3601 | args, from_tty); | |
136d6dae VP |
3602 | } |
3603 | ||
28439f5e PA |
3604 | int |
3605 | target_thread_alive (ptid_t ptid) | |
c906108c | 3606 | { |
28439f5e | 3607 | struct target_ops *t; |
5d502164 | 3608 | |
28439f5e PA |
3609 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3610 | { | |
3611 | if (t->to_thread_alive != NULL) | |
3612 | { | |
3613 | int retval; | |
c906108c | 3614 | |
28439f5e PA |
3615 | retval = t->to_thread_alive (t, ptid); |
3616 | if (targetdebug) | |
3617 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3618 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3619 | |
3620 | return retval; | |
3621 | } | |
3622 | } | |
3623 | ||
3624 | return 0; | |
3625 | } | |
3626 | ||
3627 | void | |
3628 | target_find_new_threads (void) | |
3629 | { | |
3630 | struct target_ops *t; | |
5d502164 | 3631 | |
28439f5e PA |
3632 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3633 | { | |
3634 | if (t->to_find_new_threads != NULL) | |
3635 | { | |
3636 | t->to_find_new_threads (t); | |
3637 | if (targetdebug) | |
3638 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3639 | ||
3640 | return; | |
3641 | } | |
3642 | } | |
c906108c SS |
3643 | } |
3644 | ||
d914c394 SS |
3645 | void |
3646 | target_stop (ptid_t ptid) | |
3647 | { | |
3648 | if (!may_stop) | |
3649 | { | |
3650 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3651 | return; | |
3652 | } | |
3653 | ||
1eab8a48 | 3654 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3655 | } |
3656 | ||
c906108c | 3657 | static void |
f045800c | 3658 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3659 | { |
f045800c | 3660 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3661 | |
28439f5e | 3662 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3663 | } |
3664 | ||
09826ec5 PA |
3665 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3666 | result. The LIST incoming argument is released. */ | |
3667 | ||
3668 | static char * | |
3669 | str_comma_list_concat_elem (char *list, const char *elem) | |
3670 | { | |
3671 | if (list == NULL) | |
3672 | return xstrdup (elem); | |
3673 | else | |
3674 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3675 | } | |
3676 | ||
3677 | /* Helper for target_options_to_string. If OPT is present in | |
3678 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3679 | Returns the new resulting string. OPT is removed from | |
3680 | TARGET_OPTIONS. */ | |
3681 | ||
3682 | static char * | |
3683 | do_option (int *target_options, char *ret, | |
3684 | int opt, char *opt_str) | |
3685 | { | |
3686 | if ((*target_options & opt) != 0) | |
3687 | { | |
3688 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3689 | *target_options &= ~opt; | |
3690 | } | |
3691 | ||
3692 | return ret; | |
3693 | } | |
3694 | ||
3695 | char * | |
3696 | target_options_to_string (int target_options) | |
3697 | { | |
3698 | char *ret = NULL; | |
3699 | ||
3700 | #define DO_TARG_OPTION(OPT) \ | |
3701 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3702 | ||
3703 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3704 | ||
3705 | if (target_options != 0) | |
3706 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3707 | ||
3708 | if (ret == NULL) | |
3709 | ret = xstrdup (""); | |
3710 | return ret; | |
3711 | } | |
3712 | ||
bf0c5130 | 3713 | static void |
56be3814 UW |
3714 | debug_print_register (const char * func, |
3715 | struct regcache *regcache, int regno) | |
bf0c5130 | 3716 | { |
f8d29908 | 3717 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3718 | |
bf0c5130 | 3719 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3720 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3721 | && gdbarch_register_name (gdbarch, regno) != NULL |
3722 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3723 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3724 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3725 | else |
3726 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3727 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3728 | { |
e17a4113 | 3729 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3730 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3731 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3732 | |
0ff58721 | 3733 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3734 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3735 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3736 | { |
3737 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3738 | } | |
81c4a259 | 3739 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3740 | { |
e17a4113 | 3741 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3742 | |
0b1553bc UW |
3743 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3744 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3745 | } |
3746 | } | |
3747 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3748 | } | |
3749 | ||
28439f5e PA |
3750 | void |
3751 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3752 | { |
ad5989bd TT |
3753 | current_target.to_fetch_registers (¤t_target, regcache, regno); |
3754 | if (targetdebug) | |
3755 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
3756 | } |
3757 | ||
28439f5e PA |
3758 | void |
3759 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3760 | { |
28439f5e | 3761 | struct target_ops *t; |
5d502164 | 3762 | |
d914c394 SS |
3763 | if (!may_write_registers) |
3764 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3765 | ||
6b84065d TT |
3766 | current_target.to_store_registers (¤t_target, regcache, regno); |
3767 | if (targetdebug) | |
28439f5e | 3768 | { |
6b84065d | 3769 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 3770 | } |
c906108c SS |
3771 | } |
3772 | ||
dc146f7c VP |
3773 | int |
3774 | target_core_of_thread (ptid_t ptid) | |
3775 | { | |
3776 | struct target_ops *t; | |
3777 | ||
3778 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3779 | { | |
3780 | if (t->to_core_of_thread != NULL) | |
3781 | { | |
3782 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 3783 | |
dc146f7c | 3784 | if (targetdebug) |
3e43a32a MS |
3785 | fprintf_unfiltered (gdb_stdlog, |
3786 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 3787 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
3788 | return retval; |
3789 | } | |
3790 | } | |
3791 | ||
3792 | return -1; | |
3793 | } | |
3794 | ||
4a5e7a5b PA |
3795 | int |
3796 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3797 | { | |
3798 | struct target_ops *t; | |
3799 | ||
3800 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3801 | { | |
3802 | if (t->to_verify_memory != NULL) | |
3803 | { | |
3804 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 3805 | |
4a5e7a5b | 3806 | if (targetdebug) |
3e43a32a MS |
3807 | fprintf_unfiltered (gdb_stdlog, |
3808 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 3809 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
3810 | pulongest (size), |
3811 | retval); | |
3812 | return retval; | |
3813 | } | |
3814 | } | |
3815 | ||
3816 | tcomplain (); | |
3817 | } | |
3818 | ||
9c06b0b4 TJB |
3819 | /* The documentation for this function is in its prototype declaration in |
3820 | target.h. */ | |
3821 | ||
3822 | int | |
3823 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3824 | { | |
cd4ae029 | 3825 | int ret; |
9c06b0b4 | 3826 | |
cd4ae029 TT |
3827 | ret = current_target.to_insert_mask_watchpoint (¤t_target, |
3828 | addr, mask, rw); | |
9c06b0b4 | 3829 | |
cd4ae029 TT |
3830 | if (targetdebug) |
3831 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3832 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", |
cd4ae029 TT |
3833 | core_addr_to_string (addr), |
3834 | core_addr_to_string (mask), rw, ret); | |
3835 | ||
3836 | return ret; | |
9c06b0b4 TJB |
3837 | } |
3838 | ||
3839 | /* The documentation for this function is in its prototype declaration in | |
3840 | target.h. */ | |
3841 | ||
3842 | int | |
3843 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
3844 | { | |
8b1c364c | 3845 | int ret; |
9c06b0b4 | 3846 | |
8b1c364c TT |
3847 | ret = current_target.to_remove_mask_watchpoint (¤t_target, |
3848 | addr, mask, rw); | |
9c06b0b4 | 3849 | |
8b1c364c TT |
3850 | if (targetdebug) |
3851 | fprintf_unfiltered (gdb_stdlog, "\ | |
9c06b0b4 | 3852 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", |
8b1c364c TT |
3853 | core_addr_to_string (addr), |
3854 | core_addr_to_string (mask), rw, ret); | |
9c06b0b4 | 3855 | |
8b1c364c | 3856 | return ret; |
9c06b0b4 TJB |
3857 | } |
3858 | ||
3859 | /* The documentation for this function is in its prototype declaration | |
3860 | in target.h. */ | |
3861 | ||
3862 | int | |
3863 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
3864 | { | |
6c7e5e5c TT |
3865 | return current_target.to_masked_watch_num_registers (¤t_target, |
3866 | addr, mask); | |
9c06b0b4 TJB |
3867 | } |
3868 | ||
f1310107 TJB |
3869 | /* The documentation for this function is in its prototype declaration |
3870 | in target.h. */ | |
3871 | ||
3872 | int | |
3873 | target_ranged_break_num_registers (void) | |
3874 | { | |
a134316b | 3875 | return current_target.to_ranged_break_num_registers (¤t_target); |
f1310107 TJB |
3876 | } |
3877 | ||
02d27625 MM |
3878 | /* See target.h. */ |
3879 | ||
02d27625 MM |
3880 | struct btrace_target_info * |
3881 | target_enable_btrace (ptid_t ptid) | |
3882 | { | |
3883 | struct target_ops *t; | |
3884 | ||
3885 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3886 | if (t->to_enable_btrace != NULL) | |
e3c49f88 | 3887 | return t->to_enable_btrace (t, ptid); |
02d27625 MM |
3888 | |
3889 | tcomplain (); | |
3890 | return NULL; | |
3891 | } | |
3892 | ||
3893 | /* See target.h. */ | |
3894 | ||
3895 | void | |
3896 | target_disable_btrace (struct btrace_target_info *btinfo) | |
3897 | { | |
3898 | struct target_ops *t; | |
3899 | ||
3900 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3901 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 | 3902 | { |
25e95349 | 3903 | t->to_disable_btrace (t, btinfo); |
d92f7ee3 SDJ |
3904 | return; |
3905 | } | |
02d27625 MM |
3906 | |
3907 | tcomplain (); | |
3908 | } | |
3909 | ||
3910 | /* See target.h. */ | |
3911 | ||
3912 | void | |
3913 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
3914 | { | |
3915 | struct target_ops *t; | |
3916 | ||
3917 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3918 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 | 3919 | { |
1777056d | 3920 | t->to_teardown_btrace (t, btinfo); |
d92f7ee3 SDJ |
3921 | return; |
3922 | } | |
02d27625 MM |
3923 | |
3924 | tcomplain (); | |
3925 | } | |
3926 | ||
3927 | /* See target.h. */ | |
3928 | ||
969c39fb MM |
3929 | enum btrace_error |
3930 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
3931 | struct btrace_target_info *btinfo, | |
02d27625 MM |
3932 | enum btrace_read_type type) |
3933 | { | |
3934 | struct target_ops *t; | |
3935 | ||
3936 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3937 | if (t->to_read_btrace != NULL) | |
39c49f83 | 3938 | return t->to_read_btrace (t, btrace, btinfo, type); |
02d27625 MM |
3939 | |
3940 | tcomplain (); | |
969c39fb | 3941 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
3942 | } |
3943 | ||
d02ed0bb MM |
3944 | /* See target.h. */ |
3945 | ||
7c1687a9 MM |
3946 | void |
3947 | target_stop_recording (void) | |
3948 | { | |
3949 | struct target_ops *t; | |
3950 | ||
3951 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3952 | if (t->to_stop_recording != NULL) | |
3953 | { | |
c6cd7c02 | 3954 | t->to_stop_recording (t); |
7c1687a9 MM |
3955 | return; |
3956 | } | |
3957 | ||
3958 | /* This is optional. */ | |
3959 | } | |
3960 | ||
3961 | /* See target.h. */ | |
3962 | ||
d02ed0bb MM |
3963 | void |
3964 | target_info_record (void) | |
3965 | { | |
3966 | struct target_ops *t; | |
3967 | ||
3968 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3969 | if (t->to_info_record != NULL) | |
3970 | { | |
630d6a4a | 3971 | t->to_info_record (t); |
d02ed0bb MM |
3972 | return; |
3973 | } | |
3974 | ||
3975 | tcomplain (); | |
3976 | } | |
3977 | ||
3978 | /* See target.h. */ | |
3979 | ||
3980 | void | |
85e1311a | 3981 | target_save_record (const char *filename) |
d02ed0bb MM |
3982 | { |
3983 | struct target_ops *t; | |
3984 | ||
3985 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3986 | if (t->to_save_record != NULL) | |
3987 | { | |
1390f529 | 3988 | t->to_save_record (t, filename); |
d02ed0bb MM |
3989 | return; |
3990 | } | |
3991 | ||
3992 | tcomplain (); | |
3993 | } | |
3994 | ||
3995 | /* See target.h. */ | |
3996 | ||
3997 | int | |
3998 | target_supports_delete_record (void) | |
3999 | { | |
4000 | struct target_ops *t; | |
4001 | ||
4002 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4003 | if (t->to_delete_record != NULL) | |
4004 | return 1; | |
4005 | ||
4006 | return 0; | |
4007 | } | |
4008 | ||
4009 | /* See target.h. */ | |
4010 | ||
4011 | void | |
4012 | target_delete_record (void) | |
4013 | { | |
4014 | struct target_ops *t; | |
4015 | ||
4016 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4017 | if (t->to_delete_record != NULL) | |
4018 | { | |
d1b55219 | 4019 | t->to_delete_record (t); |
d02ed0bb MM |
4020 | return; |
4021 | } | |
4022 | ||
4023 | tcomplain (); | |
4024 | } | |
4025 | ||
4026 | /* See target.h. */ | |
4027 | ||
4028 | int | |
4029 | target_record_is_replaying (void) | |
4030 | { | |
4031 | struct target_ops *t; | |
4032 | ||
4033 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4034 | if (t->to_record_is_replaying != NULL) | |
1c63c994 | 4035 | return t->to_record_is_replaying (t); |
d02ed0bb MM |
4036 | |
4037 | return 0; | |
4038 | } | |
4039 | ||
4040 | /* See target.h. */ | |
4041 | ||
4042 | void | |
4043 | target_goto_record_begin (void) | |
4044 | { | |
4045 | struct target_ops *t; | |
4046 | ||
4047 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4048 | if (t->to_goto_record_begin != NULL) | |
4049 | { | |
08475817 | 4050 | t->to_goto_record_begin (t); |
d02ed0bb MM |
4051 | return; |
4052 | } | |
4053 | ||
4054 | tcomplain (); | |
4055 | } | |
4056 | ||
4057 | /* See target.h. */ | |
4058 | ||
4059 | void | |
4060 | target_goto_record_end (void) | |
4061 | { | |
4062 | struct target_ops *t; | |
4063 | ||
4064 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4065 | if (t->to_goto_record_end != NULL) | |
4066 | { | |
307a1b91 | 4067 | t->to_goto_record_end (t); |
d02ed0bb MM |
4068 | return; |
4069 | } | |
4070 | ||
4071 | tcomplain (); | |
4072 | } | |
4073 | ||
4074 | /* See target.h. */ | |
4075 | ||
4076 | void | |
4077 | target_goto_record (ULONGEST insn) | |
4078 | { | |
4079 | struct target_ops *t; | |
4080 | ||
4081 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4082 | if (t->to_goto_record != NULL) | |
4083 | { | |
606183ac | 4084 | t->to_goto_record (t, insn); |
d02ed0bb MM |
4085 | return; |
4086 | } | |
4087 | ||
4088 | tcomplain (); | |
4089 | } | |
4090 | ||
67c86d06 MM |
4091 | /* See target.h. */ |
4092 | ||
4093 | void | |
4094 | target_insn_history (int size, int flags) | |
4095 | { | |
4096 | struct target_ops *t; | |
4097 | ||
4098 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4099 | if (t->to_insn_history != NULL) | |
4100 | { | |
7a6c5609 | 4101 | t->to_insn_history (t, size, flags); |
67c86d06 MM |
4102 | return; |
4103 | } | |
4104 | ||
4105 | tcomplain (); | |
4106 | } | |
4107 | ||
4108 | /* See target.h. */ | |
4109 | ||
4110 | void | |
4111 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4112 | { | |
4113 | struct target_ops *t; | |
4114 | ||
4115 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4116 | if (t->to_insn_history_from != NULL) | |
4117 | { | |
9abc3ff3 | 4118 | t->to_insn_history_from (t, from, size, flags); |
67c86d06 MM |
4119 | return; |
4120 | } | |
4121 | ||
4122 | tcomplain (); | |
4123 | } | |
4124 | ||
4125 | /* See target.h. */ | |
4126 | ||
4127 | void | |
4128 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4129 | { | |
4130 | struct target_ops *t; | |
4131 | ||
4132 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4133 | if (t->to_insn_history_range != NULL) | |
4134 | { | |
4e99c6b7 | 4135 | t->to_insn_history_range (t, begin, end, flags); |
67c86d06 MM |
4136 | return; |
4137 | } | |
4138 | ||
4139 | tcomplain (); | |
4140 | } | |
4141 | ||
15984c13 MM |
4142 | /* See target.h. */ |
4143 | ||
4144 | void | |
4145 | target_call_history (int size, int flags) | |
4146 | { | |
4147 | struct target_ops *t; | |
4148 | ||
4149 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4150 | if (t->to_call_history != NULL) | |
4151 | { | |
5df2fcba | 4152 | t->to_call_history (t, size, flags); |
15984c13 MM |
4153 | return; |
4154 | } | |
4155 | ||
4156 | tcomplain (); | |
4157 | } | |
4158 | ||
4159 | /* See target.h. */ | |
4160 | ||
4161 | void | |
4162 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4163 | { | |
4164 | struct target_ops *t; | |
4165 | ||
4166 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4167 | if (t->to_call_history_from != NULL) | |
4168 | { | |
ec0aea04 | 4169 | t->to_call_history_from (t, begin, size, flags); |
15984c13 MM |
4170 | return; |
4171 | } | |
4172 | ||
4173 | tcomplain (); | |
4174 | } | |
4175 | ||
4176 | /* See target.h. */ | |
4177 | ||
4178 | void | |
4179 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4180 | { | |
4181 | struct target_ops *t; | |
4182 | ||
4183 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4184 | if (t->to_call_history_range != NULL) | |
4185 | { | |
f0d960ea | 4186 | t->to_call_history_range (t, begin, end, flags); |
15984c13 MM |
4187 | return; |
4188 | } | |
4189 | ||
4190 | tcomplain (); | |
4191 | } | |
4192 | ||
c906108c | 4193 | static void |
f32dbf8c | 4194 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4195 | { |
f32dbf8c | 4196 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4197 | |
96baa820 | 4198 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4199 | } |
4200 | ||
ea001bdc MM |
4201 | /* See target.h. */ |
4202 | ||
4203 | const struct frame_unwind * | |
4204 | target_get_unwinder (void) | |
4205 | { | |
4206 | struct target_ops *t; | |
4207 | ||
4208 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4209 | if (t->to_get_unwinder != NULL) | |
4210 | return t->to_get_unwinder; | |
4211 | ||
4212 | return NULL; | |
4213 | } | |
4214 | ||
4215 | /* See target.h. */ | |
4216 | ||
4217 | const struct frame_unwind * | |
4218 | target_get_tailcall_unwinder (void) | |
4219 | { | |
4220 | struct target_ops *t; | |
4221 | ||
4222 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4223 | if (t->to_get_tailcall_unwinder != NULL) | |
4224 | return t->to_get_tailcall_unwinder; | |
4225 | ||
4226 | return NULL; | |
4227 | } | |
4228 | ||
118e6252 MM |
4229 | /* See target.h. */ |
4230 | ||
4231 | CORE_ADDR | |
4232 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4233 | struct gdbarch *gdbarch) | |
4234 | { | |
4235 | for (; ops != NULL; ops = ops->beneath) | |
4236 | if (ops->to_decr_pc_after_break != NULL) | |
4237 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4238 | ||
4239 | return gdbarch_decr_pc_after_break (gdbarch); | |
4240 | } | |
4241 | ||
4242 | /* See target.h. */ | |
4243 | ||
4244 | CORE_ADDR | |
4245 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4246 | { | |
4247 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4248 | } | |
4249 | ||
c906108c | 4250 | static int |
961cb7b5 | 4251 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4252 | int write, struct mem_attrib *attrib, |
4253 | struct target_ops *target) | |
c906108c SS |
4254 | { |
4255 | int retval; | |
4256 | ||
c8e73a31 AC |
4257 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4258 | attrib, target); | |
c906108c | 4259 | |
96baa820 | 4260 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4261 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4262 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4263 | write ? "write" : "read", retval); |
c906108c | 4264 | |
c906108c SS |
4265 | if (retval > 0) |
4266 | { | |
4267 | int i; | |
4268 | ||
96baa820 | 4269 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4270 | for (i = 0; i < retval; i++) |
4271 | { | |
53b71562 | 4272 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4273 | { |
4274 | if (targetdebug < 2 && i > 0) | |
4275 | { | |
4276 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4277 | break; | |
4278 | } | |
4279 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4280 | } | |
2bc416ba | 4281 | |
96baa820 | 4282 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4283 | } |
4284 | } | |
4285 | ||
96baa820 | 4286 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4287 | |
4288 | return retval; | |
4289 | } | |
4290 | ||
4291 | static void | |
fba45db2 | 4292 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4293 | { |
4294 | debug_target.to_files_info (target); | |
4295 | ||
96baa820 | 4296 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4297 | } |
4298 | ||
4299 | static int | |
3db08215 | 4300 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4301 | struct bp_target_info *bp_tgt) |
c906108c SS |
4302 | { |
4303 | int retval; | |
4304 | ||
6b84065d | 4305 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4306 | |
96baa820 | 4307 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4308 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4309 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4310 | (unsigned long) retval); |
c906108c SS |
4311 | return retval; |
4312 | } | |
4313 | ||
4314 | static int | |
3db08215 | 4315 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4316 | struct bp_target_info *bp_tgt) |
c906108c SS |
4317 | { |
4318 | int retval; | |
4319 | ||
6b84065d | 4320 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4321 | |
96baa820 | 4322 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4323 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4324 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4325 | (unsigned long) retval); |
c906108c SS |
4326 | return retval; |
4327 | } | |
4328 | ||
ccaa32c7 | 4329 | static int |
5461485a TT |
4330 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4331 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4332 | { |
4333 | int retval; | |
4334 | ||
5461485a TT |
4335 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4336 | type, cnt, from_tty); | |
ccaa32c7 GS |
4337 | |
4338 | fprintf_unfiltered (gdb_stdlog, | |
4339 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4340 | (unsigned long) type, | |
4341 | (unsigned long) cnt, | |
4342 | (unsigned long) from_tty, | |
4343 | (unsigned long) retval); | |
4344 | return retval; | |
4345 | } | |
4346 | ||
e0d24f8d | 4347 | static int |
31568a15 TT |
4348 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4349 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4350 | { |
4351 | CORE_ADDR retval; | |
4352 | ||
31568a15 TT |
4353 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4354 | addr, len); | |
e0d24f8d WZ |
4355 | |
4356 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4357 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4358 | core_addr_to_string (addr), (unsigned long) len, | |
4359 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4360 | return retval; |
4361 | } | |
4362 | ||
0cf6dd15 | 4363 | static int |
c3a5ff89 TT |
4364 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4365 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4366 | struct expression *cond) |
4367 | { | |
4368 | int retval; | |
4369 | ||
c3a5ff89 TT |
4370 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4371 | addr, len, | |
3e43a32a | 4372 | rw, cond); |
0cf6dd15 TJB |
4373 | |
4374 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4375 | "target_can_accel_watchpoint_condition " |
4376 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4377 | core_addr_to_string (addr), len, rw, |
4378 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4379 | return retval; |
4380 | } | |
4381 | ||
ccaa32c7 | 4382 | static int |
6a109b6b | 4383 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4384 | { |
4385 | int retval; | |
4386 | ||
6a109b6b | 4387 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4388 | |
4389 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4390 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4391 | (unsigned long) retval); |
4392 | return retval; | |
4393 | } | |
4394 | ||
4aa7a7f5 JJ |
4395 | static int |
4396 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4397 | { |
4aa7a7f5 | 4398 | int retval; |
ccaa32c7 | 4399 | |
4aa7a7f5 | 4400 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4401 | |
4402 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4403 | "target_stopped_data_address ([%s]) = %ld\n", |
4404 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4405 | (unsigned long)retval); |
ccaa32c7 GS |
4406 | return retval; |
4407 | } | |
4408 | ||
5009afc5 AS |
4409 | static int |
4410 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4411 | CORE_ADDR addr, | |
4412 | CORE_ADDR start, int length) | |
4413 | { | |
4414 | int retval; | |
4415 | ||
4416 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4417 | start, length); | |
4418 | ||
4419 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4420 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4421 | core_addr_to_string (addr), core_addr_to_string (start), | |
4422 | length, retval); | |
5009afc5 AS |
4423 | return retval; |
4424 | } | |
4425 | ||
ccaa32c7 | 4426 | static int |
23a26771 TT |
4427 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4428 | struct gdbarch *gdbarch, | |
a6d9a66e | 4429 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4430 | { |
4431 | int retval; | |
4432 | ||
23a26771 TT |
4433 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4434 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4435 | |
4436 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4437 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4438 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4439 | (unsigned long) retval); |
4440 | return retval; | |
4441 | } | |
4442 | ||
4443 | static int | |
a64dc96c TT |
4444 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4445 | struct gdbarch *gdbarch, | |
a6d9a66e | 4446 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4447 | { |
4448 | int retval; | |
4449 | ||
a64dc96c TT |
4450 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4451 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4452 | |
4453 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4454 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4455 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4456 | (unsigned long) retval); |
4457 | return retval; | |
4458 | } | |
4459 | ||
4460 | static int | |
7bb99c53 TT |
4461 | debug_to_insert_watchpoint (struct target_ops *self, |
4462 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4463 | struct expression *cond) |
ccaa32c7 GS |
4464 | { |
4465 | int retval; | |
4466 | ||
7bb99c53 TT |
4467 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4468 | addr, len, type, cond); | |
ccaa32c7 GS |
4469 | |
4470 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4471 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4472 | core_addr_to_string (addr), len, type, | |
4473 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4474 | return retval; |
4475 | } | |
4476 | ||
4477 | static int | |
11b5219a TT |
4478 | debug_to_remove_watchpoint (struct target_ops *self, |
4479 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4480 | struct expression *cond) |
ccaa32c7 GS |
4481 | { |
4482 | int retval; | |
4483 | ||
11b5219a TT |
4484 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4485 | addr, len, type, cond); | |
ccaa32c7 GS |
4486 | |
4487 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4488 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4489 | core_addr_to_string (addr), len, type, | |
4490 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4491 | return retval; |
4492 | } | |
4493 | ||
c906108c | 4494 | static void |
c42bf286 | 4495 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4496 | { |
c42bf286 | 4497 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4498 | |
96baa820 | 4499 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4500 | } |
4501 | ||
4502 | static void | |
d2f640d4 | 4503 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4504 | { |
d2f640d4 | 4505 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4506 | |
96baa820 | 4507 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4508 | } |
4509 | ||
4510 | static void | |
2e1e1a19 | 4511 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4512 | { |
2e1e1a19 | 4513 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4514 | |
96baa820 | 4515 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4516 | } |
4517 | ||
4518 | static void | |
e3594fd1 | 4519 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4520 | { |
e3594fd1 | 4521 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4522 | |
96baa820 | 4523 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4524 | } |
4525 | ||
a790ad35 | 4526 | static void |
ae3bd431 | 4527 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4528 | { |
ae3bd431 | 4529 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4530 | |
4531 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4532 | } | |
4533 | ||
c906108c | 4534 | static void |
0a4f40a2 TT |
4535 | debug_to_terminal_info (struct target_ops *self, |
4536 | const char *arg, int from_tty) | |
c906108c | 4537 | { |
0a4f40a2 | 4538 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4539 | |
96baa820 | 4540 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4541 | from_tty); |
4542 | } | |
4543 | ||
c906108c | 4544 | static void |
71a9f134 | 4545 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4546 | { |
71a9f134 | 4547 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4548 | |
96baa820 | 4549 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4550 | } |
4551 | ||
c906108c | 4552 | static void |
2e97a79e | 4553 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4554 | { |
2e97a79e | 4555 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4556 | |
96baa820 | 4557 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4558 | ptid_get_pid (ptid)); |
c906108c SS |
4559 | } |
4560 | ||
77b06cd7 | 4561 | static int |
a863b201 | 4562 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4563 | { |
77b06cd7 TJB |
4564 | int retval; |
4565 | ||
a863b201 | 4566 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4567 | |
4568 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4569 | pid, retval); | |
c906108c | 4570 | |
77b06cd7 | 4571 | return retval; |
c906108c SS |
4572 | } |
4573 | ||
4574 | static int | |
973fc227 | 4575 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4576 | { |
c5aa993b | 4577 | int retval; |
c906108c | 4578 | |
973fc227 | 4579 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4580 | |
96baa820 | 4581 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4582 | pid, retval); |
c906108c SS |
4583 | |
4584 | return retval; | |
4585 | } | |
4586 | ||
77b06cd7 | 4587 | static int |
3ecc7da0 | 4588 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4589 | { |
77b06cd7 TJB |
4590 | int retval; |
4591 | ||
3ecc7da0 | 4592 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4593 | |
77b06cd7 TJB |
4594 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4595 | pid, retval); | |
4596 | ||
4597 | return retval; | |
c906108c SS |
4598 | } |
4599 | ||
4600 | static int | |
e98cf0cd | 4601 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4602 | { |
c5aa993b | 4603 | int retval; |
c906108c | 4604 | |
e98cf0cd | 4605 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4606 | |
96baa820 | 4607 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4608 | pid, retval); |
c906108c SS |
4609 | |
4610 | return retval; | |
4611 | } | |
4612 | ||
77b06cd7 | 4613 | static int |
ba025e51 | 4614 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4615 | { |
77b06cd7 TJB |
4616 | int retval; |
4617 | ||
ba025e51 | 4618 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4619 | |
77b06cd7 TJB |
4620 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4621 | pid, retval); | |
4622 | ||
4623 | return retval; | |
c906108c SS |
4624 | } |
4625 | ||
4626 | static int | |
758e29d2 | 4627 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4628 | { |
c5aa993b | 4629 | int retval; |
c906108c | 4630 | |
758e29d2 | 4631 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4632 | |
96baa820 | 4633 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4634 | pid, retval); |
c906108c SS |
4635 | |
4636 | return retval; | |
4637 | } | |
4638 | ||
c906108c | 4639 | static int |
d796e1d6 TT |
4640 | debug_to_has_exited (struct target_ops *self, |
4641 | int pid, int wait_status, int *exit_status) | |
c906108c | 4642 | { |
c5aa993b | 4643 | int has_exited; |
c906108c | 4644 | |
d796e1d6 TT |
4645 | has_exited = debug_target.to_has_exited (&debug_target, |
4646 | pid, wait_status, exit_status); | |
c906108c | 4647 | |
96baa820 | 4648 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4649 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4650 | |
4651 | return has_exited; | |
4652 | } | |
4653 | ||
c906108c | 4654 | static int |
da82bd6b | 4655 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4656 | { |
4657 | int retval; | |
4658 | ||
da82bd6b | 4659 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4660 | |
96baa820 | 4661 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4662 | |
4663 | return retval; | |
4664 | } | |
4665 | ||
c2250ad1 UW |
4666 | static struct gdbarch * |
4667 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4668 | { | |
4669 | struct gdbarch *retval; | |
4670 | ||
4671 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4672 | ||
3e43a32a MS |
4673 | fprintf_unfiltered (gdb_stdlog, |
4674 | "target_thread_architecture (%s) = %s [%s]\n", | |
4675 | target_pid_to_str (ptid), | |
4676 | host_address_to_string (retval), | |
c2250ad1 UW |
4677 | gdbarch_bfd_arch_info (retval)->printable_name); |
4678 | return retval; | |
4679 | } | |
4680 | ||
c906108c | 4681 | static void |
1eab8a48 | 4682 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4683 | { |
1eab8a48 | 4684 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4685 | |
94cc34af PA |
4686 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4687 | target_pid_to_str (ptid)); | |
c906108c SS |
4688 | } |
4689 | ||
96baa820 | 4690 | static void |
1aac633b | 4691 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 4692 | struct ui_file *outbuf) |
96baa820 | 4693 | { |
1aac633b | 4694 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
4695 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
4696 | } | |
4697 | ||
c906108c | 4698 | static char * |
8dd27370 | 4699 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 4700 | { |
c5aa993b | 4701 | char *exec_file; |
c906108c | 4702 | |
8dd27370 | 4703 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 4704 | |
96baa820 | 4705 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4706 | pid, exec_file); |
c906108c SS |
4707 | |
4708 | return exec_file; | |
4709 | } | |
4710 | ||
c906108c | 4711 | static void |
fba45db2 | 4712 | setup_target_debug (void) |
c906108c SS |
4713 | { |
4714 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4715 | ||
4716 | current_target.to_open = debug_to_open; | |
c906108c | 4717 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4718 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4719 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4720 | current_target.to_files_info = debug_to_files_info; |
4721 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4722 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4723 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4724 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4725 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4726 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4727 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4728 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4729 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4730 | current_target.to_watchpoint_addr_within_range |
4731 | = debug_to_watchpoint_addr_within_range; | |
4732 | current_target.to_region_ok_for_hw_watchpoint | |
4733 | = debug_to_region_ok_for_hw_watchpoint; | |
4734 | current_target.to_can_accel_watchpoint_condition | |
4735 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4736 | current_target.to_terminal_init = debug_to_terminal_init; |
4737 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4738 | current_target.to_terminal_ours_for_output |
4739 | = debug_to_terminal_ours_for_output; | |
c906108c | 4740 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4741 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4742 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4743 | current_target.to_load = debug_to_load; |
c906108c | 4744 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4745 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4746 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4747 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4748 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4749 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4750 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4751 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4752 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4753 | current_target.to_stop = debug_to_stop; |
96baa820 | 4754 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4755 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4756 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4757 | } |
c906108c | 4758 | \f |
c5aa993b JM |
4759 | |
4760 | static char targ_desc[] = | |
3e43a32a MS |
4761 | "Names of targets and files being debugged.\nShows the entire \ |
4762 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4763 | core-file, and process, if any), as well as the symbol file name."; |
4764 | ||
a53f3625 TT |
4765 | static void |
4766 | default_rcmd (struct target_ops *self, char *command, struct ui_file *output) | |
4767 | { | |
4768 | error (_("\"monitor\" command not supported by this target.")); | |
4769 | } | |
4770 | ||
96baa820 JM |
4771 | static void |
4772 | do_monitor_command (char *cmd, | |
4773 | int from_tty) | |
4774 | { | |
96baa820 JM |
4775 | target_rcmd (cmd, gdb_stdtarg); |
4776 | } | |
4777 | ||
87680a14 JB |
4778 | /* Print the name of each layers of our target stack. */ |
4779 | ||
4780 | static void | |
4781 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4782 | { | |
4783 | struct target_ops *t; | |
4784 | ||
4785 | printf_filtered (_("The current target stack is:\n")); | |
4786 | ||
4787 | for (t = target_stack; t != NULL; t = t->beneath) | |
4788 | { | |
4789 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4790 | } | |
4791 | } | |
4792 | ||
c6ebd6cf VP |
4793 | /* Controls if async mode is permitted. */ |
4794 | int target_async_permitted = 0; | |
4795 | ||
4796 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4797 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4798 | static int target_async_permitted_1 = 0; |
4799 | ||
4800 | static void | |
9401a810 PA |
4801 | set_target_async_command (char *args, int from_tty, |
4802 | struct cmd_list_element *c) | |
c6ebd6cf | 4803 | { |
c35b1492 | 4804 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4805 | { |
4806 | target_async_permitted_1 = target_async_permitted; | |
4807 | error (_("Cannot change this setting while the inferior is running.")); | |
4808 | } | |
4809 | ||
4810 | target_async_permitted = target_async_permitted_1; | |
4811 | } | |
4812 | ||
4813 | static void | |
9401a810 PA |
4814 | show_target_async_command (struct ui_file *file, int from_tty, |
4815 | struct cmd_list_element *c, | |
4816 | const char *value) | |
c6ebd6cf | 4817 | { |
3e43a32a MS |
4818 | fprintf_filtered (file, |
4819 | _("Controlling the inferior in " | |
4820 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4821 | } |
4822 | ||
d914c394 SS |
4823 | /* Temporary copies of permission settings. */ |
4824 | ||
4825 | static int may_write_registers_1 = 1; | |
4826 | static int may_write_memory_1 = 1; | |
4827 | static int may_insert_breakpoints_1 = 1; | |
4828 | static int may_insert_tracepoints_1 = 1; | |
4829 | static int may_insert_fast_tracepoints_1 = 1; | |
4830 | static int may_stop_1 = 1; | |
4831 | ||
4832 | /* Make the user-set values match the real values again. */ | |
4833 | ||
4834 | void | |
4835 | update_target_permissions (void) | |
4836 | { | |
4837 | may_write_registers_1 = may_write_registers; | |
4838 | may_write_memory_1 = may_write_memory; | |
4839 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4840 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4841 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4842 | may_stop_1 = may_stop; | |
4843 | } | |
4844 | ||
4845 | /* The one function handles (most of) the permission flags in the same | |
4846 | way. */ | |
4847 | ||
4848 | static void | |
4849 | set_target_permissions (char *args, int from_tty, | |
4850 | struct cmd_list_element *c) | |
4851 | { | |
4852 | if (target_has_execution) | |
4853 | { | |
4854 | update_target_permissions (); | |
4855 | error (_("Cannot change this setting while the inferior is running.")); | |
4856 | } | |
4857 | ||
4858 | /* Make the real values match the user-changed values. */ | |
4859 | may_write_registers = may_write_registers_1; | |
4860 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4861 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4862 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4863 | may_stop = may_stop_1; | |
4864 | update_observer_mode (); | |
4865 | } | |
4866 | ||
4867 | /* Set memory write permission independently of observer mode. */ | |
4868 | ||
4869 | static void | |
4870 | set_write_memory_permission (char *args, int from_tty, | |
4871 | struct cmd_list_element *c) | |
4872 | { | |
4873 | /* Make the real values match the user-changed values. */ | |
4874 | may_write_memory = may_write_memory_1; | |
4875 | update_observer_mode (); | |
4876 | } | |
4877 | ||
4878 | ||
c906108c | 4879 | void |
fba45db2 | 4880 | initialize_targets (void) |
c906108c SS |
4881 | { |
4882 | init_dummy_target (); | |
4883 | push_target (&dummy_target); | |
4884 | ||
4885 | add_info ("target", target_info, targ_desc); | |
4886 | add_info ("files", target_info, targ_desc); | |
4887 | ||
ccce17b0 | 4888 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
4889 | Set target debugging."), _("\ |
4890 | Show target debugging."), _("\ | |
333dabeb DJ |
4891 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4892 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 4893 | command."), |
ccce17b0 YQ |
4894 | NULL, |
4895 | show_targetdebug, | |
4896 | &setdebuglist, &showdebuglist); | |
3a11626d | 4897 | |
2bc416ba | 4898 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4899 | &trust_readonly, _("\ |
4900 | Set mode for reading from readonly sections."), _("\ | |
4901 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4902 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4903 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4904 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4905 | NULL, |
920d2a44 | 4906 | show_trust_readonly, |
e707bbc2 | 4907 | &setlist, &showlist); |
96baa820 JM |
4908 | |
4909 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4910 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4911 | |
87680a14 JB |
4912 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4913 | _("Print the name of each layer of the internal target stack."), | |
4914 | &maintenanceprintlist); | |
4915 | ||
c6ebd6cf VP |
4916 | add_setshow_boolean_cmd ("target-async", no_class, |
4917 | &target_async_permitted_1, _("\ | |
4918 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4919 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4920 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
4921 | set_target_async_command, |
4922 | show_target_async_command, | |
c6ebd6cf VP |
4923 | &setlist, |
4924 | &showlist); | |
4925 | ||
d914c394 SS |
4926 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4927 | &may_write_registers_1, _("\ | |
4928 | Set permission to write into registers."), _("\ | |
4929 | Show permission to write into registers."), _("\ | |
4930 | When this permission is on, GDB may write into the target's registers.\n\ | |
4931 | Otherwise, any sort of write attempt will result in an error."), | |
4932 | set_target_permissions, NULL, | |
4933 | &setlist, &showlist); | |
4934 | ||
4935 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4936 | &may_write_memory_1, _("\ | |
4937 | Set permission to write into target memory."), _("\ | |
4938 | Show permission to write into target memory."), _("\ | |
4939 | When this permission is on, GDB may write into the target's memory.\n\ | |
4940 | Otherwise, any sort of write attempt will result in an error."), | |
4941 | set_write_memory_permission, NULL, | |
4942 | &setlist, &showlist); | |
4943 | ||
4944 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4945 | &may_insert_breakpoints_1, _("\ | |
4946 | Set permission to insert breakpoints in the target."), _("\ | |
4947 | Show permission to insert breakpoints in the target."), _("\ | |
4948 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4949 | Otherwise, any sort of insertion attempt will result in an error."), | |
4950 | set_target_permissions, NULL, | |
4951 | &setlist, &showlist); | |
4952 | ||
4953 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4954 | &may_insert_tracepoints_1, _("\ | |
4955 | Set permission to insert tracepoints in the target."), _("\ | |
4956 | Show permission to insert tracepoints in the target."), _("\ | |
4957 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4958 | Otherwise, any sort of insertion attempt will result in an error."), | |
4959 | set_target_permissions, NULL, | |
4960 | &setlist, &showlist); | |
4961 | ||
4962 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4963 | &may_insert_fast_tracepoints_1, _("\ | |
4964 | Set permission to insert fast tracepoints in the target."), _("\ | |
4965 | Show permission to insert fast tracepoints in the target."), _("\ | |
4966 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4967 | Otherwise, any sort of insertion attempt will result in an error."), | |
4968 | set_target_permissions, NULL, | |
4969 | &setlist, &showlist); | |
4970 | ||
4971 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4972 | &may_stop_1, _("\ | |
4973 | Set permission to interrupt or signal the target."), _("\ | |
4974 | Show permission to interrupt or signal the target."), _("\ | |
4975 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4976 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4977 | set_target_permissions, NULL, | |
4978 | &setlist, &showlist); | |
c906108c | 4979 | } |