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 | |
c25c4a8b | 58 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 59 | |
a14ed312 | 60 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 61 | |
a14ed312 | 62 | static int return_zero (void); |
c906108c | 63 | |
a14ed312 | 64 | static int return_one (void); |
c906108c | 65 | |
ccaa32c7 GS |
66 | static int return_minus_one (void); |
67 | ||
1b67eb02 AS |
68 | static void *return_null (void); |
69 | ||
a14ed312 | 70 | void target_ignore (void); |
c906108c | 71 | |
a14ed312 | 72 | static void target_command (char *, int); |
c906108c | 73 | |
a14ed312 | 74 | static struct target_ops *find_default_run_target (char *); |
c906108c | 75 | |
4ac248ca YQ |
76 | static target_xfer_partial_ftype default_xfer_partial; |
77 | ||
c2250ad1 UW |
78 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
79 | ptid_t ptid); | |
80 | ||
6b84065d TT |
81 | static int find_default_can_async_p (struct target_ops *ignore); |
82 | ||
83 | static int find_default_is_async_p (struct target_ops *ignore); | |
84 | ||
1101cb7b TT |
85 | #include "target-delegates.c" |
86 | ||
a14ed312 | 87 | static void init_dummy_target (void); |
c906108c | 88 | |
aa869812 AC |
89 | static struct target_ops debug_target; |
90 | ||
a14ed312 | 91 | static void debug_to_open (char *, int); |
c906108c | 92 | |
f32dbf8c MM |
93 | static void debug_to_prepare_to_store (struct target_ops *self, |
94 | struct regcache *); | |
c906108c | 95 | |
a14ed312 | 96 | static void debug_to_files_info (struct target_ops *); |
c906108c | 97 | |
3db08215 | 98 | static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 99 | struct bp_target_info *); |
c906108c | 100 | |
3db08215 | 101 | static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *, |
a6d9a66e | 102 | struct bp_target_info *); |
c906108c | 103 | |
5461485a TT |
104 | static int debug_to_can_use_hw_breakpoint (struct target_ops *self, |
105 | int, int, int); | |
ccaa32c7 | 106 | |
23a26771 TT |
107 | static int debug_to_insert_hw_breakpoint (struct target_ops *self, |
108 | struct gdbarch *, | |
a6d9a66e | 109 | struct bp_target_info *); |
ccaa32c7 | 110 | |
a64dc96c TT |
111 | static int debug_to_remove_hw_breakpoint (struct target_ops *self, |
112 | struct gdbarch *, | |
a6d9a66e | 113 | struct bp_target_info *); |
ccaa32c7 | 114 | |
7bb99c53 TT |
115 | static int debug_to_insert_watchpoint (struct target_ops *self, |
116 | CORE_ADDR, int, int, | |
0cf6dd15 | 117 | struct expression *); |
ccaa32c7 | 118 | |
11b5219a TT |
119 | static int debug_to_remove_watchpoint (struct target_ops *self, |
120 | CORE_ADDR, int, int, | |
0cf6dd15 | 121 | struct expression *); |
ccaa32c7 | 122 | |
4aa7a7f5 | 123 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 124 | |
5009afc5 AS |
125 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
126 | CORE_ADDR, CORE_ADDR, int); | |
127 | ||
31568a15 TT |
128 | static int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
129 | CORE_ADDR, int); | |
e0d24f8d | 130 | |
c3a5ff89 TT |
131 | static int debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
132 | CORE_ADDR, int, int, | |
0cf6dd15 TJB |
133 | struct expression *); |
134 | ||
c42bf286 | 135 | static void debug_to_terminal_init (struct target_ops *self); |
c906108c | 136 | |
d2f640d4 | 137 | static void debug_to_terminal_inferior (struct target_ops *self); |
c906108c | 138 | |
2e1e1a19 | 139 | static void debug_to_terminal_ours_for_output (struct target_ops *self); |
c906108c | 140 | |
ae3bd431 | 141 | static void debug_to_terminal_save_ours (struct target_ops *self); |
a790ad35 | 142 | |
e3594fd1 | 143 | static void debug_to_terminal_ours (struct target_ops *self); |
c906108c | 144 | |
71a9f134 | 145 | static void debug_to_load (struct target_ops *self, char *, int); |
c906108c | 146 | |
da82bd6b | 147 | static int debug_to_can_run (struct target_ops *self); |
c906108c | 148 | |
1eab8a48 | 149 | static void debug_to_stop (struct target_ops *self, ptid_t); |
c906108c | 150 | |
c906108c | 151 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 152 | array; the current index into the array; the allocated size of the |
c906108c SS |
153 | array. */ |
154 | struct target_ops **target_structs; | |
155 | unsigned target_struct_size; | |
c906108c SS |
156 | unsigned target_struct_allocsize; |
157 | #define DEFAULT_ALLOCSIZE 10 | |
158 | ||
159 | /* The initial current target, so that there is always a semi-valid | |
160 | current target. */ | |
161 | ||
162 | static struct target_ops dummy_target; | |
163 | ||
164 | /* Top of target stack. */ | |
165 | ||
258b763a | 166 | static struct target_ops *target_stack; |
c906108c SS |
167 | |
168 | /* The target structure we are currently using to talk to a process | |
169 | or file or whatever "inferior" we have. */ | |
170 | ||
171 | struct target_ops current_target; | |
172 | ||
173 | /* Command list for target. */ | |
174 | ||
175 | static struct cmd_list_element *targetlist = NULL; | |
176 | ||
cf7a04e8 DJ |
177 | /* Nonzero if we should trust readonly sections from the |
178 | executable when reading memory. */ | |
179 | ||
180 | static int trust_readonly = 0; | |
181 | ||
8defab1a DJ |
182 | /* Nonzero if we should show true memory content including |
183 | memory breakpoint inserted by gdb. */ | |
184 | ||
185 | static int show_memory_breakpoints = 0; | |
186 | ||
d914c394 SS |
187 | /* These globals control whether GDB attempts to perform these |
188 | operations; they are useful for targets that need to prevent | |
189 | inadvertant disruption, such as in non-stop mode. */ | |
190 | ||
191 | int may_write_registers = 1; | |
192 | ||
193 | int may_write_memory = 1; | |
194 | ||
195 | int may_insert_breakpoints = 1; | |
196 | ||
197 | int may_insert_tracepoints = 1; | |
198 | ||
199 | int may_insert_fast_tracepoints = 1; | |
200 | ||
201 | int may_stop = 1; | |
202 | ||
c906108c SS |
203 | /* Non-zero if we want to see trace of target level stuff. */ |
204 | ||
ccce17b0 | 205 | static unsigned int targetdebug = 0; |
920d2a44 AC |
206 | static void |
207 | show_targetdebug (struct ui_file *file, int from_tty, | |
208 | struct cmd_list_element *c, const char *value) | |
209 | { | |
210 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
211 | } | |
c906108c | 212 | |
a14ed312 | 213 | static void setup_target_debug (void); |
c906108c | 214 | |
c906108c SS |
215 | /* The user just typed 'target' without the name of a target. */ |
216 | ||
c906108c | 217 | static void |
fba45db2 | 218 | target_command (char *arg, int from_tty) |
c906108c SS |
219 | { |
220 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
221 | gdb_stdout); | |
222 | } | |
223 | ||
c35b1492 PA |
224 | /* Default target_has_* methods for process_stratum targets. */ |
225 | ||
226 | int | |
227 | default_child_has_all_memory (struct target_ops *ops) | |
228 | { | |
229 | /* If no inferior selected, then we can't read memory here. */ | |
230 | if (ptid_equal (inferior_ptid, null_ptid)) | |
231 | return 0; | |
232 | ||
233 | return 1; | |
234 | } | |
235 | ||
236 | int | |
237 | default_child_has_memory (struct target_ops *ops) | |
238 | { | |
239 | /* If no inferior selected, then we can't read memory here. */ | |
240 | if (ptid_equal (inferior_ptid, null_ptid)) | |
241 | return 0; | |
242 | ||
243 | return 1; | |
244 | } | |
245 | ||
246 | int | |
247 | default_child_has_stack (struct target_ops *ops) | |
248 | { | |
249 | /* If no inferior selected, there's no stack. */ | |
250 | if (ptid_equal (inferior_ptid, null_ptid)) | |
251 | return 0; | |
252 | ||
253 | return 1; | |
254 | } | |
255 | ||
256 | int | |
257 | default_child_has_registers (struct target_ops *ops) | |
258 | { | |
259 | /* Can't read registers from no inferior. */ | |
260 | if (ptid_equal (inferior_ptid, null_ptid)) | |
261 | return 0; | |
262 | ||
263 | return 1; | |
264 | } | |
265 | ||
266 | int | |
aeaec162 | 267 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
268 | { |
269 | /* If there's no thread selected, then we can't make it run through | |
270 | hoops. */ | |
aeaec162 | 271 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
272 | return 0; |
273 | ||
274 | return 1; | |
275 | } | |
276 | ||
277 | ||
278 | int | |
279 | target_has_all_memory_1 (void) | |
280 | { | |
281 | struct target_ops *t; | |
282 | ||
283 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
284 | if (t->to_has_all_memory (t)) | |
285 | return 1; | |
286 | ||
287 | return 0; | |
288 | } | |
289 | ||
290 | int | |
291 | target_has_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_memory (t)) | |
297 | return 1; | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
302 | int | |
303 | target_has_stack_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_stack (t)) | |
309 | return 1; | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | int | |
315 | target_has_registers_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_registers (t)) | |
321 | return 1; | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | int | |
aeaec162 | 327 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
328 | { |
329 | struct target_ops *t; | |
330 | ||
331 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 332 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
333 | return 1; |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
aeaec162 TT |
338 | int |
339 | target_has_execution_current (void) | |
340 | { | |
341 | return target_has_execution_1 (inferior_ptid); | |
342 | } | |
343 | ||
c22a2b88 TT |
344 | /* Complete initialization of T. This ensures that various fields in |
345 | T are set, if needed by the target implementation. */ | |
c906108c SS |
346 | |
347 | void | |
c22a2b88 | 348 | complete_target_initialization (struct target_ops *t) |
c906108c | 349 | { |
0088c768 | 350 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
351 | if (t->to_xfer_partial == NULL) |
352 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 353 | |
c35b1492 PA |
354 | if (t->to_has_all_memory == NULL) |
355 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
356 | ||
357 | if (t->to_has_memory == NULL) | |
358 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
359 | ||
360 | if (t->to_has_stack == NULL) | |
361 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
362 | ||
363 | if (t->to_has_registers == NULL) | |
364 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
365 | ||
366 | if (t->to_has_execution == NULL) | |
aeaec162 | 367 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
1101cb7b TT |
368 | |
369 | install_delegators (t); | |
c22a2b88 TT |
370 | } |
371 | ||
372 | /* Add possible target architecture T to the list and add a new | |
373 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
374 | completer if not NULL. */ | |
375 | ||
376 | void | |
377 | add_target_with_completer (struct target_ops *t, | |
378 | completer_ftype *completer) | |
379 | { | |
380 | struct cmd_list_element *c; | |
381 | ||
382 | complete_target_initialization (t); | |
c35b1492 | 383 | |
c906108c SS |
384 | if (!target_structs) |
385 | { | |
386 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
387 | target_structs = (struct target_ops **) xmalloc | |
388 | (target_struct_allocsize * sizeof (*target_structs)); | |
389 | } | |
390 | if (target_struct_size >= target_struct_allocsize) | |
391 | { | |
392 | target_struct_allocsize *= 2; | |
393 | target_structs = (struct target_ops **) | |
c5aa993b JM |
394 | xrealloc ((char *) target_structs, |
395 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
396 | } |
397 | target_structs[target_struct_size++] = t; | |
c906108c SS |
398 | |
399 | if (targetlist == NULL) | |
1bedd215 AC |
400 | add_prefix_cmd ("target", class_run, target_command, _("\ |
401 | Connect to a target machine or process.\n\ | |
c906108c SS |
402 | The first argument is the type or protocol of the target machine.\n\ |
403 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
404 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 405 | `help target ' followed by the protocol name."), |
c906108c | 406 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
407 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
408 | &targetlist); | |
409 | if (completer != NULL) | |
410 | set_cmd_completer (c, completer); | |
411 | } | |
412 | ||
413 | /* Add a possible target architecture to the list. */ | |
414 | ||
415 | void | |
416 | add_target (struct target_ops *t) | |
417 | { | |
418 | add_target_with_completer (t, NULL); | |
c906108c SS |
419 | } |
420 | ||
b48d48eb MM |
421 | /* See target.h. */ |
422 | ||
423 | void | |
424 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
425 | { | |
426 | struct cmd_list_element *c; | |
427 | char *alt; | |
428 | ||
429 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
430 | see PR cli/15104. */ | |
431 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
432 | alt = xstrprintf ("target %s", t->to_shortname); | |
433 | deprecate_cmd (c, alt); | |
434 | } | |
435 | ||
c906108c SS |
436 | /* Stub functions */ |
437 | ||
438 | void | |
fba45db2 | 439 | target_ignore (void) |
c906108c SS |
440 | { |
441 | } | |
442 | ||
7d85a9c0 JB |
443 | void |
444 | target_kill (void) | |
445 | { | |
446 | struct target_ops *t; | |
447 | ||
448 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
449 | if (t->to_kill != NULL) | |
450 | { | |
451 | if (targetdebug) | |
452 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
453 | ||
454 | t->to_kill (t); | |
455 | return; | |
456 | } | |
457 | ||
458 | noprocess (); | |
459 | } | |
460 | ||
11cf8741 JM |
461 | void |
462 | target_load (char *arg, int from_tty) | |
463 | { | |
4e5d721f | 464 | target_dcache_invalidate (); |
71a9f134 | 465 | (*current_target.to_load) (¤t_target, arg, from_tty); |
11cf8741 JM |
466 | } |
467 | ||
947b8855 PA |
468 | void |
469 | target_create_inferior (char *exec_file, char *args, | |
470 | char **env, int from_tty) | |
136d6dae VP |
471 | { |
472 | struct target_ops *t; | |
5d502164 | 473 | |
136d6dae VP |
474 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
475 | { | |
476 | if (t->to_create_inferior != NULL) | |
477 | { | |
478 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
479 | if (targetdebug) |
480 | fprintf_unfiltered (gdb_stdlog, | |
481 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
482 | exec_file, args, from_tty); | |
136d6dae VP |
483 | return; |
484 | } | |
485 | } | |
486 | ||
487 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 488 | _("could not find a target to create inferior")); |
136d6dae VP |
489 | } |
490 | ||
d9d2d8b6 PA |
491 | void |
492 | target_terminal_inferior (void) | |
493 | { | |
494 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 495 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
496 | this point the target is not async yet. However, if sync_execution |
497 | is not set, we know it will become async prior to resume. */ | |
498 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
499 | return; |
500 | ||
501 | /* If GDB is resuming the inferior in the foreground, install | |
502 | inferior's terminal modes. */ | |
d2f640d4 | 503 | (*current_target.to_terminal_inferior) (¤t_target); |
d9d2d8b6 | 504 | } |
136d6dae | 505 | |
c906108c | 506 | static int |
fba45db2 KB |
507 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
508 | struct target_ops *t) | |
c906108c | 509 | { |
c378eb4e MS |
510 | errno = EIO; /* Can't read/write this location. */ |
511 | return 0; /* No bytes handled. */ | |
c906108c SS |
512 | } |
513 | ||
514 | static void | |
fba45db2 | 515 | tcomplain (void) |
c906108c | 516 | { |
8a3fe4f8 | 517 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
518 | current_target.to_shortname); |
519 | } | |
520 | ||
521 | void | |
fba45db2 | 522 | noprocess (void) |
c906108c | 523 | { |
8a3fe4f8 | 524 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
525 | } |
526 | ||
c906108c | 527 | static void |
0a4f40a2 | 528 | default_terminal_info (struct target_ops *self, const char *args, int from_tty) |
c906108c | 529 | { |
a3f17187 | 530 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
531 | } |
532 | ||
0ef643c8 JB |
533 | /* A default implementation for the to_get_ada_task_ptid target method. |
534 | ||
535 | This function builds the PTID by using both LWP and TID as part of | |
536 | the PTID lwp and tid elements. The pid used is the pid of the | |
537 | inferior_ptid. */ | |
538 | ||
2c0b251b | 539 | static ptid_t |
1e6b91a4 | 540 | default_get_ada_task_ptid (struct target_ops *self, long lwp, long tid) |
0ef643c8 JB |
541 | { |
542 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
543 | } | |
544 | ||
32231432 PA |
545 | static enum exec_direction_kind |
546 | default_execution_direction (void) | |
547 | { | |
548 | if (!target_can_execute_reverse) | |
549 | return EXEC_FORWARD; | |
550 | else if (!target_can_async_p ()) | |
551 | return EXEC_FORWARD; | |
552 | else | |
553 | gdb_assert_not_reached ("\ | |
554 | to_execution_direction must be implemented for reverse async"); | |
555 | } | |
556 | ||
7998dfc3 AC |
557 | /* Go through the target stack from top to bottom, copying over zero |
558 | entries in current_target, then filling in still empty entries. In | |
559 | effect, we are doing class inheritance through the pushed target | |
560 | vectors. | |
561 | ||
562 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
563 | is currently implemented, is that it discards any knowledge of | |
564 | which target an inherited method originally belonged to. | |
565 | Consequently, new new target methods should instead explicitly and | |
566 | locally search the target stack for the target that can handle the | |
567 | request. */ | |
c906108c SS |
568 | |
569 | static void | |
7998dfc3 | 570 | update_current_target (void) |
c906108c | 571 | { |
7998dfc3 AC |
572 | struct target_ops *t; |
573 | ||
08d8bcd7 | 574 | /* First, reset current's contents. */ |
7998dfc3 AC |
575 | memset (¤t_target, 0, sizeof (current_target)); |
576 | ||
1101cb7b TT |
577 | /* Install the delegators. */ |
578 | install_delegators (¤t_target); | |
579 | ||
7998dfc3 AC |
580 | #define INHERIT(FIELD, TARGET) \ |
581 | if (!current_target.FIELD) \ | |
582 | current_target.FIELD = (TARGET)->FIELD | |
583 | ||
584 | for (t = target_stack; t; t = t->beneath) | |
585 | { | |
586 | INHERIT (to_shortname, t); | |
587 | INHERIT (to_longname, t); | |
588 | INHERIT (to_doc, t); | |
b52323fa UW |
589 | /* Do not inherit to_open. */ |
590 | /* Do not inherit to_close. */ | |
136d6dae | 591 | /* Do not inherit to_attach. */ |
7998dfc3 | 592 | INHERIT (to_post_attach, t); |
dc177b7a | 593 | INHERIT (to_attach_no_wait, t); |
136d6dae | 594 | /* Do not inherit to_detach. */ |
597320e7 | 595 | /* Do not inherit to_disconnect. */ |
28439f5e | 596 | /* Do not inherit to_resume. */ |
117de6a9 | 597 | /* Do not inherit to_wait. */ |
28439f5e PA |
598 | /* Do not inherit to_fetch_registers. */ |
599 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 600 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 601 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 | 602 | INHERIT (to_files_info, t); |
3db08215 MM |
603 | /* Do not inherit to_insert_breakpoint. */ |
604 | /* Do not inherit to_remove_breakpoint. */ | |
7998dfc3 AC |
605 | INHERIT (to_can_use_hw_breakpoint, t); |
606 | INHERIT (to_insert_hw_breakpoint, t); | |
607 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 608 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
609 | INHERIT (to_insert_watchpoint, t); |
610 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
611 | /* Do not inherit to_insert_mask_watchpoint. */ |
612 | /* Do not inherit to_remove_mask_watchpoint. */ | |
6b84065d | 613 | /* Do not inherit to_stopped_data_address. */ |
74174d2e | 614 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 615 | INHERIT (to_have_continuable_watchpoint, t); |
6b84065d | 616 | /* Do not inherit to_stopped_by_watchpoint. */ |
5009afc5 | 617 | INHERIT (to_watchpoint_addr_within_range, t); |
e0d24f8d | 618 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 619 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 620 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
621 | INHERIT (to_terminal_init, t); |
622 | INHERIT (to_terminal_inferior, t); | |
623 | INHERIT (to_terminal_ours_for_output, t); | |
624 | INHERIT (to_terminal_ours, t); | |
625 | INHERIT (to_terminal_save_ours, t); | |
626 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 627 | /* Do not inherit to_kill. */ |
7998dfc3 | 628 | INHERIT (to_load, t); |
136d6dae | 629 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 630 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
631 | INHERIT (to_insert_fork_catchpoint, t); |
632 | INHERIT (to_remove_fork_catchpoint, t); | |
633 | INHERIT (to_insert_vfork_catchpoint, t); | |
634 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 635 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
636 | INHERIT (to_insert_exec_catchpoint, t); |
637 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 638 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 639 | INHERIT (to_has_exited, t); |
82892036 | 640 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 641 | INHERIT (to_can_run, t); |
2455069d | 642 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 643 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
644 | /* Do not inherit to_thread_alive. */ |
645 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 646 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 647 | INHERIT (to_extra_thread_info, t); |
4694da01 | 648 | INHERIT (to_thread_name, t); |
7998dfc3 | 649 | INHERIT (to_stop, t); |
4b8a223f | 650 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 651 | INHERIT (to_rcmd, t); |
7998dfc3 | 652 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 653 | INHERIT (to_log_command, t); |
7998dfc3 | 654 | INHERIT (to_stratum, t); |
c378eb4e MS |
655 | /* Do not inherit to_has_all_memory. */ |
656 | /* Do not inherit to_has_memory. */ | |
657 | /* Do not inherit to_has_stack. */ | |
658 | /* Do not inherit to_has_registers. */ | |
659 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 660 | INHERIT (to_has_thread_control, t); |
6b84065d TT |
661 | /* Do not inherit to_can_async_p. */ |
662 | /* Do not inherit to_is_async_p. */ | |
663 | /* Do not inherit to_async. */ | |
7998dfc3 AC |
664 | INHERIT (to_find_memory_regions, t); |
665 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
666 | INHERIT (to_get_bookmark, t); |
667 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 668 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 669 | INHERIT (to_can_execute_reverse, t); |
32231432 | 670 | INHERIT (to_execution_direction, t); |
c2250ad1 | 671 | INHERIT (to_thread_architecture, t); |
424163ea | 672 | /* Do not inherit to_read_description. */ |
0ef643c8 | 673 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 674 | /* Do not inherit to_search_memory. */ |
8a305172 | 675 | INHERIT (to_supports_multi_process, t); |
d248b706 | 676 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 677 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
678 | INHERIT (to_trace_init, t); |
679 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 680 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 681 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
682 | INHERIT (to_enable_tracepoint, t); |
683 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
684 | INHERIT (to_trace_set_readonly_regions, t); |
685 | INHERIT (to_trace_start, t); | |
686 | INHERIT (to_get_trace_status, t); | |
f196051f | 687 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
688 | INHERIT (to_trace_stop, t); |
689 | INHERIT (to_trace_find, t); | |
690 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
691 | INHERIT (to_save_trace_data, t); |
692 | INHERIT (to_upload_tracepoints, t); | |
693 | INHERIT (to_upload_trace_state_variables, t); | |
694 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 695 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 696 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 697 | INHERIT (to_set_circular_trace_buffer, t); |
f6f899bf | 698 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 699 | INHERIT (to_set_trace_notes, t); |
711e434b | 700 | INHERIT (to_get_tib_address, t); |
d914c394 | 701 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
702 | INHERIT (to_static_tracepoint_marker_at, t); |
703 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 704 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
705 | INHERIT (to_use_agent, t); |
706 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 707 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 708 | INHERIT (to_magic, t); |
b775012e | 709 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 710 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 711 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
712 | /* Do not inherit to_flash_erase. */ |
713 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
714 | } |
715 | #undef INHERIT | |
716 | ||
717 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
718 | it. Some entries are defaulted to a method that print an error, |
719 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
720 | |
721 | #define de_fault(field, value) \ | |
7998dfc3 AC |
722 | if (!current_target.field) \ |
723 | current_target.field = value | |
0d06e24b | 724 | |
2bc416ba DJ |
725 | de_fault (to_open, |
726 | (void (*) (char *, int)) | |
0d06e24b | 727 | tcomplain); |
2bc416ba | 728 | de_fault (to_close, |
de90e03d | 729 | (void (*) (struct target_ops *)) |
0d06e24b | 730 | target_ignore); |
2bc416ba | 731 | de_fault (to_post_attach, |
f045800c | 732 | (void (*) (struct target_ops *, int)) |
0d06e24b | 733 | target_ignore); |
2bc416ba | 734 | de_fault (to_prepare_to_store, |
f32dbf8c | 735 | (void (*) (struct target_ops *, struct regcache *)) |
0d06e24b | 736 | noprocess); |
2bc416ba | 737 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
738 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
739 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 740 | nomemory); |
2bc416ba DJ |
741 | de_fault (to_files_info, |
742 | (void (*) (struct target_ops *)) | |
0d06e24b | 743 | target_ignore); |
ccaa32c7 | 744 | de_fault (to_can_use_hw_breakpoint, |
5461485a | 745 | (int (*) (struct target_ops *, int, int, int)) |
ccaa32c7 GS |
746 | return_zero); |
747 | de_fault (to_insert_hw_breakpoint, | |
23a26771 TT |
748 | (int (*) (struct target_ops *, struct gdbarch *, |
749 | struct bp_target_info *)) | |
ccaa32c7 GS |
750 | return_minus_one); |
751 | de_fault (to_remove_hw_breakpoint, | |
a64dc96c TT |
752 | (int (*) (struct target_ops *, struct gdbarch *, |
753 | struct bp_target_info *)) | |
ccaa32c7 GS |
754 | return_minus_one); |
755 | de_fault (to_insert_watchpoint, | |
7bb99c53 TT |
756 | (int (*) (struct target_ops *, CORE_ADDR, int, int, |
757 | struct expression *)) | |
ccaa32c7 GS |
758 | return_minus_one); |
759 | de_fault (to_remove_watchpoint, | |
11b5219a TT |
760 | (int (*) (struct target_ops *, CORE_ADDR, int, int, |
761 | struct expression *)) | |
ccaa32c7 | 762 | return_minus_one); |
5009afc5 AS |
763 | de_fault (to_watchpoint_addr_within_range, |
764 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
765 | de_fault (to_region_ok_for_hw_watchpoint, |
766 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 | 767 | de_fault (to_can_accel_watchpoint_condition, |
c3a5ff89 TT |
768 | (int (*) (struct target_ops *, CORE_ADDR, int, int, |
769 | struct expression *)) | |
0cf6dd15 | 770 | return_zero); |
2bc416ba | 771 | de_fault (to_terminal_init, |
c42bf286 | 772 | (void (*) (struct target_ops *)) |
0d06e24b | 773 | target_ignore); |
2bc416ba | 774 | de_fault (to_terminal_inferior, |
d2f640d4 | 775 | (void (*) (struct target_ops *)) |
0d06e24b | 776 | target_ignore); |
2bc416ba | 777 | de_fault (to_terminal_ours_for_output, |
2e1e1a19 | 778 | (void (*) (struct target_ops *)) |
0d06e24b | 779 | target_ignore); |
2bc416ba | 780 | de_fault (to_terminal_ours, |
e3594fd1 | 781 | (void (*) (struct target_ops *)) |
0d06e24b | 782 | target_ignore); |
2bc416ba | 783 | de_fault (to_terminal_save_ours, |
ae3bd431 | 784 | (void (*) (struct target_ops *)) |
a790ad35 | 785 | target_ignore); |
2bc416ba | 786 | de_fault (to_terminal_info, |
0d06e24b | 787 | default_terminal_info); |
2bc416ba | 788 | de_fault (to_load, |
71a9f134 | 789 | (void (*) (struct target_ops *, char *, int)) |
0d06e24b | 790 | tcomplain); |
2bc416ba | 791 | de_fault (to_post_startup_inferior, |
2e97a79e | 792 | (void (*) (struct target_ops *, ptid_t)) |
0d06e24b | 793 | target_ignore); |
2bc416ba | 794 | de_fault (to_insert_fork_catchpoint, |
a863b201 | 795 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 796 | return_one); |
2bc416ba | 797 | de_fault (to_remove_fork_catchpoint, |
973fc227 | 798 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 799 | return_one); |
2bc416ba | 800 | de_fault (to_insert_vfork_catchpoint, |
3ecc7da0 | 801 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 802 | return_one); |
2bc416ba | 803 | de_fault (to_remove_vfork_catchpoint, |
e98cf0cd | 804 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 805 | return_one); |
2bc416ba | 806 | de_fault (to_insert_exec_catchpoint, |
ba025e51 | 807 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 808 | return_one); |
2bc416ba | 809 | de_fault (to_remove_exec_catchpoint, |
758e29d2 | 810 | (int (*) (struct target_ops *, int)) |
77b06cd7 | 811 | return_one); |
a96d9b2e | 812 | de_fault (to_set_syscall_catchpoint, |
ff214e67 | 813 | (int (*) (struct target_ops *, int, int, int, int, int *)) |
77b06cd7 | 814 | return_one); |
2bc416ba | 815 | de_fault (to_has_exited, |
d796e1d6 | 816 | (int (*) (struct target_ops *, int, int, int *)) |
0d06e24b | 817 | return_zero); |
2bc416ba | 818 | de_fault (to_can_run, |
da82bd6b | 819 | (int (*) (struct target_ops *)) |
0d06e24b | 820 | return_zero); |
2bc416ba | 821 | de_fault (to_extra_thread_info, |
c15906d8 | 822 | (char *(*) (struct target_ops *, struct thread_info *)) |
1b67eb02 | 823 | return_null); |
4694da01 | 824 | de_fault (to_thread_name, |
503a628d | 825 | (char *(*) (struct target_ops *, struct thread_info *)) |
1b67eb02 | 826 | return_null); |
2bc416ba | 827 | de_fault (to_stop, |
1eab8a48 | 828 | (void (*) (struct target_ops *, ptid_t)) |
0d06e24b | 829 | target_ignore); |
2bc416ba | 830 | de_fault (to_rcmd, |
1aac633b | 831 | (void (*) (struct target_ops *, char *, struct ui_file *)) |
0d06e24b | 832 | tcomplain); |
2bc416ba | 833 | de_fault (to_pid_to_exec_file, |
8dd27370 | 834 | (char *(*) (struct target_ops *, int)) |
1b67eb02 | 835 | return_null); |
c2250ad1 UW |
836 | de_fault (to_thread_architecture, |
837 | default_thread_architecture); | |
424163ea | 838 | current_target.to_read_description = NULL; |
0ef643c8 | 839 | de_fault (to_get_ada_task_ptid, |
1e6b91a4 | 840 | (ptid_t (*) (struct target_ops *, long, long)) |
0ef643c8 | 841 | default_get_ada_task_ptid); |
8a305172 PA |
842 | de_fault (to_supports_multi_process, |
843 | (int (*) (void)) | |
844 | return_zero); | |
d248b706 KY |
845 | de_fault (to_supports_enable_disable_tracepoint, |
846 | (int (*) (void)) | |
847 | return_zero); | |
3065dfb6 SS |
848 | de_fault (to_supports_string_tracing, |
849 | (int (*) (void)) | |
850 | return_zero); | |
35b1e5cc SS |
851 | de_fault (to_trace_init, |
852 | (void (*) (void)) | |
853 | tcomplain); | |
854 | de_fault (to_download_tracepoint, | |
e8ba3115 | 855 | (void (*) (struct bp_location *)) |
35b1e5cc | 856 | tcomplain); |
1e4d1764 YQ |
857 | de_fault (to_can_download_tracepoint, |
858 | (int (*) (void)) | |
859 | return_zero); | |
35b1e5cc SS |
860 | de_fault (to_download_trace_state_variable, |
861 | (void (*) (struct trace_state_variable *)) | |
862 | tcomplain); | |
d248b706 KY |
863 | de_fault (to_enable_tracepoint, |
864 | (void (*) (struct bp_location *)) | |
865 | tcomplain); | |
866 | de_fault (to_disable_tracepoint, | |
867 | (void (*) (struct bp_location *)) | |
868 | tcomplain); | |
35b1e5cc SS |
869 | de_fault (to_trace_set_readonly_regions, |
870 | (void (*) (void)) | |
871 | tcomplain); | |
872 | de_fault (to_trace_start, | |
873 | (void (*) (void)) | |
874 | tcomplain); | |
875 | de_fault (to_get_trace_status, | |
00bf0b85 | 876 | (int (*) (struct trace_status *)) |
35b1e5cc | 877 | return_minus_one); |
f196051f SS |
878 | de_fault (to_get_tracepoint_status, |
879 | (void (*) (struct breakpoint *, struct uploaded_tp *)) | |
880 | tcomplain); | |
35b1e5cc SS |
881 | de_fault (to_trace_stop, |
882 | (void (*) (void)) | |
883 | tcomplain); | |
884 | de_fault (to_trace_find, | |
cc5925ad | 885 | (int (*) (enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) |
4136fdd2 | 886 | return_minus_one); |
35b1e5cc SS |
887 | de_fault (to_get_trace_state_variable_value, |
888 | (int (*) (int, LONGEST *)) | |
889 | return_zero); | |
00bf0b85 | 890 | de_fault (to_save_trace_data, |
011aacb0 | 891 | (int (*) (const char *)) |
00bf0b85 SS |
892 | tcomplain); |
893 | de_fault (to_upload_tracepoints, | |
894 | (int (*) (struct uploaded_tp **)) | |
895 | return_zero); | |
896 | de_fault (to_upload_trace_state_variables, | |
897 | (int (*) (struct uploaded_tsv **)) | |
898 | return_zero); | |
899 | de_fault (to_get_raw_trace_data, | |
900 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
901 | tcomplain); | |
405f8e94 SS |
902 | de_fault (to_get_min_fast_tracepoint_insn_len, |
903 | (int (*) (void)) | |
904 | return_minus_one); | |
35b1e5cc SS |
905 | de_fault (to_set_disconnected_tracing, |
906 | (void (*) (int)) | |
4daf5ac0 SS |
907 | target_ignore); |
908 | de_fault (to_set_circular_trace_buffer, | |
909 | (void (*) (int)) | |
910 | target_ignore); | |
f6f899bf HAQ |
911 | de_fault (to_set_trace_buffer_size, |
912 | (void (*) (LONGEST)) | |
913 | target_ignore); | |
f196051f | 914 | de_fault (to_set_trace_notes, |
ca623f82 | 915 | (int (*) (const char *, const char *, const char *)) |
f196051f | 916 | return_zero); |
711e434b PM |
917 | de_fault (to_get_tib_address, |
918 | (int (*) (ptid_t, CORE_ADDR *)) | |
919 | tcomplain); | |
d914c394 SS |
920 | de_fault (to_set_permissions, |
921 | (void (*) (void)) | |
922 | target_ignore); | |
0fb4aa4b PA |
923 | de_fault (to_static_tracepoint_marker_at, |
924 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
925 | return_zero); | |
926 | de_fault (to_static_tracepoint_markers_by_strid, | |
927 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
928 | tcomplain); | |
b3b9301e PA |
929 | de_fault (to_traceframe_info, |
930 | (struct traceframe_info * (*) (void)) | |
1b67eb02 | 931 | return_null); |
b775012e LM |
932 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
933 | (int (*) (void)) | |
934 | return_zero); | |
d3ce09f5 SS |
935 | de_fault (to_can_run_breakpoint_commands, |
936 | (int (*) (void)) | |
937 | return_zero); | |
d1feda86 YQ |
938 | de_fault (to_use_agent, |
939 | (int (*) (int)) | |
940 | tcomplain); | |
941 | de_fault (to_can_use_agent, | |
942 | (int (*) (void)) | |
943 | return_zero); | |
ced63ec0 GB |
944 | de_fault (to_augmented_libraries_svr4_read, |
945 | (int (*) (void)) | |
946 | return_zero); | |
32231432 PA |
947 | de_fault (to_execution_direction, default_execution_direction); |
948 | ||
c906108c | 949 | #undef de_fault |
c906108c | 950 | |
7998dfc3 AC |
951 | /* Finally, position the target-stack beneath the squashed |
952 | "current_target". That way code looking for a non-inherited | |
953 | target method can quickly and simply find it. */ | |
954 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
955 | |
956 | if (targetdebug) | |
957 | setup_target_debug (); | |
c906108c SS |
958 | } |
959 | ||
960 | /* Push a new target type into the stack of the existing target accessors, | |
961 | possibly superseding some of the existing accessors. | |
962 | ||
c906108c SS |
963 | Rather than allow an empty stack, we always have the dummy target at |
964 | the bottom stratum, so we can call the function vectors without | |
965 | checking them. */ | |
966 | ||
b26a4dcb | 967 | void |
fba45db2 | 968 | push_target (struct target_ops *t) |
c906108c | 969 | { |
258b763a | 970 | struct target_ops **cur; |
c906108c SS |
971 | |
972 | /* Check magic number. If wrong, it probably means someone changed | |
973 | the struct definition, but not all the places that initialize one. */ | |
974 | if (t->to_magic != OPS_MAGIC) | |
975 | { | |
c5aa993b JM |
976 | fprintf_unfiltered (gdb_stderr, |
977 | "Magic number of %s target struct wrong\n", | |
978 | t->to_shortname); | |
3e43a32a MS |
979 | internal_error (__FILE__, __LINE__, |
980 | _("failed internal consistency check")); | |
c906108c SS |
981 | } |
982 | ||
258b763a AC |
983 | /* Find the proper stratum to install this target in. */ |
984 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 985 | { |
258b763a | 986 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
987 | break; |
988 | } | |
989 | ||
258b763a | 990 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 991 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
992 | targets to CUR, and not just those at this stratum level. */ |
993 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
994 | { | |
995 | /* There's already something at this stratum level. Close it, | |
996 | and un-hook it from the stack. */ | |
997 | struct target_ops *tmp = (*cur); | |
5d502164 | 998 | |
258b763a AC |
999 | (*cur) = (*cur)->beneath; |
1000 | tmp->beneath = NULL; | |
460014f5 | 1001 | target_close (tmp); |
258b763a | 1002 | } |
c906108c SS |
1003 | |
1004 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
1005 | t->beneath = (*cur); |
1006 | (*cur) = t; | |
c906108c SS |
1007 | |
1008 | update_current_target (); | |
c906108c SS |
1009 | } |
1010 | ||
2bc416ba | 1011 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1012 | Return how many times it was removed (0 or 1). */ |
1013 | ||
1014 | int | |
fba45db2 | 1015 | unpush_target (struct target_ops *t) |
c906108c | 1016 | { |
258b763a AC |
1017 | struct target_ops **cur; |
1018 | struct target_ops *tmp; | |
c906108c | 1019 | |
c8d104ad PA |
1020 | if (t->to_stratum == dummy_stratum) |
1021 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1022 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1023 | |
c906108c | 1024 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1025 | can only occur once in the target stack. */ |
c906108c | 1026 | |
258b763a AC |
1027 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1028 | { | |
1029 | if ((*cur) == t) | |
1030 | break; | |
1031 | } | |
c906108c | 1032 | |
305436e0 PA |
1033 | /* If we don't find target_ops, quit. Only open targets should be |
1034 | closed. */ | |
258b763a | 1035 | if ((*cur) == NULL) |
305436e0 | 1036 | return 0; |
5269965e | 1037 | |
c378eb4e | 1038 | /* Unchain the target. */ |
258b763a AC |
1039 | tmp = (*cur); |
1040 | (*cur) = (*cur)->beneath; | |
1041 | tmp->beneath = NULL; | |
c906108c SS |
1042 | |
1043 | update_current_target (); | |
c906108c | 1044 | |
305436e0 PA |
1045 | /* Finally close the target. Note we do this after unchaining, so |
1046 | any target method calls from within the target_close | |
1047 | implementation don't end up in T anymore. */ | |
460014f5 | 1048 | target_close (t); |
305436e0 | 1049 | |
c906108c SS |
1050 | return 1; |
1051 | } | |
1052 | ||
aa76d38d | 1053 | void |
460014f5 | 1054 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1055 | { |
87ab71f0 | 1056 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1057 | { |
aa76d38d PA |
1058 | if (!unpush_target (target_stack)) |
1059 | { | |
1060 | fprintf_unfiltered (gdb_stderr, | |
1061 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1062 | target_stack->to_shortname); |
aa76d38d PA |
1063 | internal_error (__FILE__, __LINE__, |
1064 | _("failed internal consistency check")); | |
1065 | break; | |
1066 | } | |
1067 | } | |
1068 | } | |
1069 | ||
87ab71f0 | 1070 | void |
460014f5 | 1071 | pop_all_targets (void) |
87ab71f0 | 1072 | { |
460014f5 | 1073 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1074 | } |
1075 | ||
c0edd9ed JK |
1076 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1077 | ||
1078 | int | |
1079 | target_is_pushed (struct target_ops *t) | |
1080 | { | |
1081 | struct target_ops **cur; | |
1082 | ||
1083 | /* Check magic number. If wrong, it probably means someone changed | |
1084 | the struct definition, but not all the places that initialize one. */ | |
1085 | if (t->to_magic != OPS_MAGIC) | |
1086 | { | |
1087 | fprintf_unfiltered (gdb_stderr, | |
1088 | "Magic number of %s target struct wrong\n", | |
1089 | t->to_shortname); | |
3e43a32a MS |
1090 | internal_error (__FILE__, __LINE__, |
1091 | _("failed internal consistency check")); | |
c0edd9ed JK |
1092 | } |
1093 | ||
1094 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1095 | if (*cur == t) | |
1096 | return 1; | |
1097 | ||
1098 | return 0; | |
1099 | } | |
1100 | ||
72f5cf0e | 1101 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1102 | current thread's thread-local storage with offset OFFSET. */ |
1103 | CORE_ADDR | |
1104 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1105 | { | |
1106 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1107 | struct target_ops *target; |
1108 | ||
1109 | for (target = current_target.beneath; | |
1110 | target != NULL; | |
1111 | target = target->beneath) | |
1112 | { | |
1113 | if (target->to_get_thread_local_address != NULL) | |
1114 | break; | |
1115 | } | |
9e35dae4 | 1116 | |
117de6a9 | 1117 | if (target != NULL |
f5656ead | 1118 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1119 | { |
1120 | ptid_t ptid = inferior_ptid; | |
1121 | volatile struct gdb_exception ex; | |
1122 | ||
1123 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1124 | { | |
1125 | CORE_ADDR lm_addr; | |
1126 | ||
1127 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1128 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1129 | objfile); |
1130 | /* If it's 0, throw the appropriate exception. */ | |
1131 | if (lm_addr == 0) | |
1132 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1133 | _("TLS load module not found")); | |
1134 | ||
3e43a32a MS |
1135 | addr = target->to_get_thread_local_address (target, ptid, |
1136 | lm_addr, offset); | |
9e35dae4 DJ |
1137 | } |
1138 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1139 | throw the error to some higher catcher. */ | |
1140 | if (ex.reason < 0) | |
1141 | { | |
1142 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1143 | ||
1144 | switch (ex.error) | |
1145 | { | |
1146 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1147 | error (_("Cannot find thread-local variables " |
1148 | "in this thread library.")); | |
9e35dae4 DJ |
1149 | break; |
1150 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1151 | if (objfile_is_library) | |
1152 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 1153 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1154 | else |
1155 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 1156 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1157 | break; |
1158 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1159 | if (objfile_is_library) | |
1160 | error (_("The inferior has not yet allocated storage for" | |
1161 | " thread-local variables in\n" | |
1162 | "the shared library `%s'\n" | |
1163 | "for %s"), | |
4262abfb | 1164 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1165 | else |
1166 | error (_("The inferior has not yet allocated storage for" | |
1167 | " thread-local variables in\n" | |
1168 | "the executable `%s'\n" | |
1169 | "for %s"), | |
4262abfb | 1170 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1171 | break; |
1172 | case TLS_GENERIC_ERROR: | |
1173 | if (objfile_is_library) | |
1174 | error (_("Cannot find thread-local storage for %s, " | |
1175 | "shared library %s:\n%s"), | |
1176 | target_pid_to_str (ptid), | |
4262abfb | 1177 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1178 | else |
1179 | error (_("Cannot find thread-local storage for %s, " | |
1180 | "executable file %s:\n%s"), | |
1181 | target_pid_to_str (ptid), | |
4262abfb | 1182 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1183 | break; |
1184 | default: | |
1185 | throw_exception (ex); | |
1186 | break; | |
1187 | } | |
1188 | } | |
1189 | } | |
1190 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1191 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1192 | else | |
1193 | error (_("Cannot find thread-local variables on this target")); | |
1194 | ||
1195 | return addr; | |
1196 | } | |
1197 | ||
6be7b56e | 1198 | const char * |
9b409511 | 1199 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1200 | { |
1201 | #define CASE(X) case X: return #X | |
1202 | switch (err) | |
1203 | { | |
1204 | CASE(TARGET_XFER_E_IO); | |
1205 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1206 | default: | |
1207 | return "<unknown>"; | |
1208 | } | |
1209 | #undef CASE | |
1210 | }; | |
1211 | ||
1212 | ||
c906108c SS |
1213 | #undef MIN |
1214 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1215 | ||
1216 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1217 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1218 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1219 | is responsible for freeing it. Return the number of bytes successfully | |
1220 | read. */ | |
1221 | ||
1222 | int | |
fba45db2 | 1223 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1224 | { |
c2e8b827 | 1225 | int tlen, offset, i; |
1b0ba102 | 1226 | gdb_byte buf[4]; |
c906108c SS |
1227 | int errcode = 0; |
1228 | char *buffer; | |
1229 | int buffer_allocated; | |
1230 | char *bufptr; | |
1231 | unsigned int nbytes_read = 0; | |
1232 | ||
6217bf3e MS |
1233 | gdb_assert (string); |
1234 | ||
c906108c SS |
1235 | /* Small for testing. */ |
1236 | buffer_allocated = 4; | |
1237 | buffer = xmalloc (buffer_allocated); | |
1238 | bufptr = buffer; | |
1239 | ||
c906108c SS |
1240 | while (len > 0) |
1241 | { | |
1242 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1243 | offset = memaddr & 3; | |
1244 | ||
1b0ba102 | 1245 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1246 | if (errcode != 0) |
1247 | { | |
1248 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1249 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1250 | a single byte. */ |
1251 | tlen = 1; | |
1252 | offset = 0; | |
b8eb5af0 | 1253 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1254 | if (errcode != 0) |
1255 | goto done; | |
1256 | } | |
1257 | ||
1258 | if (bufptr - buffer + tlen > buffer_allocated) | |
1259 | { | |
1260 | unsigned int bytes; | |
5d502164 | 1261 | |
c906108c SS |
1262 | bytes = bufptr - buffer; |
1263 | buffer_allocated *= 2; | |
1264 | buffer = xrealloc (buffer, buffer_allocated); | |
1265 | bufptr = buffer + bytes; | |
1266 | } | |
1267 | ||
1268 | for (i = 0; i < tlen; i++) | |
1269 | { | |
1270 | *bufptr++ = buf[i + offset]; | |
1271 | if (buf[i + offset] == '\000') | |
1272 | { | |
1273 | nbytes_read += i + 1; | |
1274 | goto done; | |
1275 | } | |
1276 | } | |
1277 | ||
1278 | memaddr += tlen; | |
1279 | len -= tlen; | |
1280 | nbytes_read += tlen; | |
1281 | } | |
c5aa993b | 1282 | done: |
6217bf3e | 1283 | *string = buffer; |
c906108c SS |
1284 | if (errnop != NULL) |
1285 | *errnop = errcode; | |
c906108c SS |
1286 | return nbytes_read; |
1287 | } | |
1288 | ||
07b82ea5 PA |
1289 | struct target_section_table * |
1290 | target_get_section_table (struct target_ops *target) | |
1291 | { | |
1292 | struct target_ops *t; | |
1293 | ||
1294 | if (targetdebug) | |
1295 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1296 | ||
1297 | for (t = target; t != NULL; t = t->beneath) | |
1298 | if (t->to_get_section_table != NULL) | |
1299 | return (*t->to_get_section_table) (t); | |
1300 | ||
1301 | return NULL; | |
1302 | } | |
1303 | ||
8db32d44 | 1304 | /* Find a section containing ADDR. */ |
07b82ea5 | 1305 | |
0542c86d | 1306 | struct target_section * |
8db32d44 AC |
1307 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1308 | { | |
07b82ea5 | 1309 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1310 | struct target_section *secp; |
07b82ea5 PA |
1311 | |
1312 | if (table == NULL) | |
1313 | return NULL; | |
1314 | ||
1315 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1316 | { |
1317 | if (addr >= secp->addr && addr < secp->endaddr) | |
1318 | return secp; | |
1319 | } | |
1320 | return NULL; | |
1321 | } | |
1322 | ||
e6e4e701 PA |
1323 | /* Read memory from the live target, even if currently inspecting a |
1324 | traceframe. The return is the same as that of target_read. */ | |
1325 | ||
9b409511 | 1326 | static enum target_xfer_status |
e6e4e701 | 1327 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1328 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1329 | ULONGEST *xfered_len) | |
e6e4e701 | 1330 | { |
9b409511 | 1331 | enum target_xfer_status ret; |
e6e4e701 PA |
1332 | struct cleanup *cleanup; |
1333 | ||
1334 | /* Switch momentarily out of tfind mode so to access live memory. | |
1335 | Note that this must not clear global state, such as the frame | |
1336 | cache, which must still remain valid for the previous traceframe. | |
1337 | We may be _building_ the frame cache at this point. */ | |
1338 | cleanup = make_cleanup_restore_traceframe_number (); | |
1339 | set_traceframe_number (-1); | |
1340 | ||
9b409511 YQ |
1341 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1342 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1343 | |
1344 | do_cleanups (cleanup); | |
1345 | return ret; | |
1346 | } | |
1347 | ||
1348 | /* Using the set of read-only target sections of OPS, read live | |
1349 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1350 | top-most target again. |
1351 | ||
1352 | For interface/parameters/return description see target.h, | |
1353 | to_xfer_partial. */ | |
e6e4e701 | 1354 | |
9b409511 | 1355 | static enum target_xfer_status |
e6e4e701 PA |
1356 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1357 | enum target_object object, | |
1358 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1359 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1360 | { |
1361 | struct target_section *secp; | |
1362 | struct target_section_table *table; | |
1363 | ||
1364 | secp = target_section_by_addr (ops, memaddr); | |
1365 | if (secp != NULL | |
2b2848e2 DE |
1366 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1367 | secp->the_bfd_section) | |
e6e4e701 PA |
1368 | & SEC_READONLY)) |
1369 | { | |
1370 | struct target_section *p; | |
1371 | ULONGEST memend = memaddr + len; | |
1372 | ||
1373 | table = target_get_section_table (ops); | |
1374 | ||
1375 | for (p = table->sections; p < table->sections_end; p++) | |
1376 | { | |
1377 | if (memaddr >= p->addr) | |
1378 | { | |
1379 | if (memend <= p->endaddr) | |
1380 | { | |
1381 | /* Entire transfer is within this section. */ | |
1382 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1383 | readbuf, len, xfered_len); |
e6e4e701 PA |
1384 | } |
1385 | else if (memaddr >= p->endaddr) | |
1386 | { | |
1387 | /* This section ends before the transfer starts. */ | |
1388 | continue; | |
1389 | } | |
1390 | else | |
1391 | { | |
1392 | /* This section overlaps the transfer. Just do half. */ | |
1393 | len = p->endaddr - memaddr; | |
1394 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1395 | readbuf, len, xfered_len); |
e6e4e701 PA |
1396 | } |
1397 | } | |
1398 | } | |
1399 | } | |
1400 | ||
9b409511 | 1401 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1402 | } |
1403 | ||
9f713294 YQ |
1404 | /* Read memory from more than one valid target. A core file, for |
1405 | instance, could have some of memory but delegate other bits to | |
1406 | the target below it. So, we must manually try all targets. */ | |
1407 | ||
9b409511 | 1408 | static enum target_xfer_status |
17fde6d0 | 1409 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1410 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1411 | ULONGEST *xfered_len) | |
9f713294 | 1412 | { |
9b409511 | 1413 | enum target_xfer_status res; |
9f713294 YQ |
1414 | |
1415 | do | |
1416 | { | |
1417 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1418 | readbuf, writebuf, memaddr, len, |
1419 | xfered_len); | |
1420 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1421 | break; |
1422 | ||
633785ff MM |
1423 | /* Stop if the target reports that the memory is not available. */ |
1424 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1425 | break; | |
1426 | ||
9f713294 YQ |
1427 | /* We want to continue past core files to executables, but not |
1428 | past a running target's memory. */ | |
1429 | if (ops->to_has_all_memory (ops)) | |
1430 | break; | |
1431 | ||
1432 | ops = ops->beneath; | |
1433 | } | |
1434 | while (ops != NULL); | |
1435 | ||
1436 | return res; | |
1437 | } | |
1438 | ||
7f79c47e DE |
1439 | /* Perform a partial memory transfer. |
1440 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1441 | |
9b409511 | 1442 | static enum target_xfer_status |
f0ba3972 | 1443 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1444 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1445 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1446 | { |
9b409511 | 1447 | enum target_xfer_status res; |
cf7a04e8 DJ |
1448 | int reg_len; |
1449 | struct mem_region *region; | |
4e5d721f | 1450 | struct inferior *inf; |
cf7a04e8 | 1451 | |
07b82ea5 PA |
1452 | /* For accesses to unmapped overlay sections, read directly from |
1453 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1454 | if (readbuf != NULL && overlay_debugging) | |
1455 | { | |
1456 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1457 | |
07b82ea5 PA |
1458 | if (pc_in_unmapped_range (memaddr, section)) |
1459 | { | |
1460 | struct target_section_table *table | |
1461 | = target_get_section_table (ops); | |
1462 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1463 | |
07b82ea5 PA |
1464 | memaddr = overlay_mapped_address (memaddr, section); |
1465 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1466 | memaddr, len, xfered_len, |
07b82ea5 PA |
1467 | table->sections, |
1468 | table->sections_end, | |
1469 | section_name); | |
1470 | } | |
1471 | } | |
1472 | ||
1473 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1474 | if (readbuf != NULL && trust_readonly) |
1475 | { | |
0542c86d | 1476 | struct target_section *secp; |
07b82ea5 | 1477 | struct target_section_table *table; |
cf7a04e8 DJ |
1478 | |
1479 | secp = target_section_by_addr (ops, memaddr); | |
1480 | if (secp != NULL | |
2b2848e2 DE |
1481 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1482 | secp->the_bfd_section) | |
cf7a04e8 | 1483 | & SEC_READONLY)) |
07b82ea5 PA |
1484 | { |
1485 | table = target_get_section_table (ops); | |
1486 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1487 | memaddr, len, xfered_len, |
07b82ea5 PA |
1488 | table->sections, |
1489 | table->sections_end, | |
1490 | NULL); | |
1491 | } | |
98646950 UW |
1492 | } |
1493 | ||
e6e4e701 PA |
1494 | /* If reading unavailable memory in the context of traceframes, and |
1495 | this address falls within a read-only section, fallback to | |
1496 | reading from live memory. */ | |
1497 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1498 | { | |
1499 | VEC(mem_range_s) *available; | |
1500 | ||
1501 | /* If we fail to get the set of available memory, then the | |
1502 | target does not support querying traceframe info, and so we | |
1503 | attempt reading from the traceframe anyway (assuming the | |
1504 | target implements the old QTro packet then). */ | |
1505 | if (traceframe_available_memory (&available, memaddr, len)) | |
1506 | { | |
1507 | struct cleanup *old_chain; | |
1508 | ||
1509 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1510 | ||
1511 | if (VEC_empty (mem_range_s, available) | |
1512 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1513 | { | |
1514 | /* Don't read into the traceframe's available | |
1515 | memory. */ | |
1516 | if (!VEC_empty (mem_range_s, available)) | |
1517 | { | |
1518 | LONGEST oldlen = len; | |
1519 | ||
1520 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1521 | gdb_assert (len <= oldlen); | |
1522 | } | |
1523 | ||
1524 | do_cleanups (old_chain); | |
1525 | ||
1526 | /* This goes through the topmost target again. */ | |
1527 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1528 | readbuf, memaddr, |
1529 | len, xfered_len); | |
1530 | if (res == TARGET_XFER_OK) | |
1531 | return TARGET_XFER_OK; | |
1532 | else | |
1533 | { | |
1534 | /* No use trying further, we know some memory starting | |
1535 | at MEMADDR isn't available. */ | |
1536 | *xfered_len = len; | |
1537 | return TARGET_XFER_E_UNAVAILABLE; | |
1538 | } | |
e6e4e701 PA |
1539 | } |
1540 | ||
1541 | /* Don't try to read more than how much is available, in | |
1542 | case the target implements the deprecated QTro packet to | |
1543 | cater for older GDBs (the target's knowledge of read-only | |
1544 | sections may be outdated by now). */ | |
1545 | len = VEC_index (mem_range_s, available, 0)->length; | |
1546 | ||
1547 | do_cleanups (old_chain); | |
1548 | } | |
1549 | } | |
1550 | ||
cf7a04e8 DJ |
1551 | /* Try GDB's internal data cache. */ |
1552 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1553 | /* region->hi == 0 means there's no upper bound. */ |
1554 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1555 | reg_len = len; |
1556 | else | |
1557 | reg_len = region->hi - memaddr; | |
1558 | ||
1559 | switch (region->attrib.mode) | |
1560 | { | |
1561 | case MEM_RO: | |
1562 | if (writebuf != NULL) | |
2ed4b548 | 1563 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1564 | break; |
1565 | ||
1566 | case MEM_WO: | |
1567 | if (readbuf != NULL) | |
2ed4b548 | 1568 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1569 | break; |
a76d924d DJ |
1570 | |
1571 | case MEM_FLASH: | |
1572 | /* We only support writing to flash during "load" for now. */ | |
1573 | if (writebuf != NULL) | |
1574 | error (_("Writing to flash memory forbidden in this context")); | |
1575 | break; | |
4b5752d0 VP |
1576 | |
1577 | case MEM_NONE: | |
2ed4b548 | 1578 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1579 | } |
1580 | ||
6c95b8df PA |
1581 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1582 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1583 | else | |
1584 | inf = NULL; | |
4e5d721f DE |
1585 | |
1586 | if (inf != NULL | |
2f4d8875 PA |
1587 | /* The dcache reads whole cache lines; that doesn't play well |
1588 | with reading from a trace buffer, because reading outside of | |
1589 | the collected memory range fails. */ | |
1590 | && get_traceframe_number () == -1 | |
4e5d721f | 1591 | && (region->attrib.cache |
29453a14 YQ |
1592 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1593 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1594 | { |
2a2f9fe4 | 1595 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1596 | int l; |
2a2f9fe4 | 1597 | |
cf7a04e8 | 1598 | if (readbuf != NULL) |
9b409511 | 1599 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1600 | else |
1601 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1602 | correctness dcache_xfer_memory should take readbuf and | |
1603 | writebuf. */ | |
9b409511 | 1604 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1605 | reg_len, 1); |
9b409511 YQ |
1606 | if (l <= 0) |
1607 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1608 | else |
9b409511 YQ |
1609 | { |
1610 | *xfered_len = (ULONGEST) l; | |
1611 | return TARGET_XFER_OK; | |
1612 | } | |
cf7a04e8 DJ |
1613 | } |
1614 | ||
1615 | /* If none of those methods found the memory we wanted, fall back | |
1616 | to a target partial transfer. Normally a single call to | |
1617 | to_xfer_partial is enough; if it doesn't recognize an object | |
1618 | it will call the to_xfer_partial of the next target down. | |
1619 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1620 | object which can be read from more than one valid target. |
1621 | A core file, for instance, could have some of memory but | |
1622 | delegate other bits to the target below it. So, we must | |
1623 | manually try all targets. */ | |
1624 | ||
1625 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1626 | xfered_len); | |
cf7a04e8 | 1627 | |
41dcd03f DE |
1628 | /* Make sure the cache gets updated no matter what - if we are writing |
1629 | to the stack. Even if this write is not tagged as such, we still need | |
1630 | to update the cache. */ | |
1631 | ||
9b409511 | 1632 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1633 | && inf != NULL |
1634 | && writebuf != NULL | |
f2de9785 | 1635 | && target_dcache_init_p () |
41dcd03f | 1636 | && !region->attrib.cache |
29453a14 YQ |
1637 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1638 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1639 | { |
f2de9785 | 1640 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1641 | |
9b409511 | 1642 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1643 | } |
1644 | ||
cf7a04e8 DJ |
1645 | /* If we still haven't got anything, return the last error. We |
1646 | give up. */ | |
1647 | return res; | |
0779438d AC |
1648 | } |
1649 | ||
f0ba3972 PA |
1650 | /* Perform a partial memory transfer. For docs see target.h, |
1651 | to_xfer_partial. */ | |
1652 | ||
9b409511 | 1653 | static enum target_xfer_status |
f0ba3972 | 1654 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1655 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1656 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1657 | { |
9b409511 | 1658 | enum target_xfer_status res; |
f0ba3972 PA |
1659 | |
1660 | /* Zero length requests are ok and require no work. */ | |
1661 | if (len == 0) | |
9b409511 | 1662 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1663 | |
1664 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1665 | breakpoint insns, thus hiding out from higher layers whether | |
1666 | there are software breakpoints inserted in the code stream. */ | |
1667 | if (readbuf != NULL) | |
1668 | { | |
9b409511 YQ |
1669 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1670 | xfered_len); | |
f0ba3972 | 1671 | |
9b409511 | 1672 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1673 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1674 | } | |
1675 | else | |
1676 | { | |
1677 | void *buf; | |
1678 | struct cleanup *old_chain; | |
1679 | ||
67c059c2 AB |
1680 | /* A large write request is likely to be partially satisfied |
1681 | by memory_xfer_partial_1. We will continually malloc | |
1682 | and free a copy of the entire write request for breakpoint | |
1683 | shadow handling even though we only end up writing a small | |
1684 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1685 | len = min (4096, len); | |
1686 | ||
f0ba3972 PA |
1687 | buf = xmalloc (len); |
1688 | old_chain = make_cleanup (xfree, buf); | |
1689 | memcpy (buf, writebuf, len); | |
1690 | ||
1691 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1692 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1693 | xfered_len); | |
f0ba3972 PA |
1694 | |
1695 | do_cleanups (old_chain); | |
1696 | } | |
1697 | ||
1698 | return res; | |
1699 | } | |
1700 | ||
8defab1a DJ |
1701 | static void |
1702 | restore_show_memory_breakpoints (void *arg) | |
1703 | { | |
1704 | show_memory_breakpoints = (uintptr_t) arg; | |
1705 | } | |
1706 | ||
1707 | struct cleanup * | |
1708 | make_show_memory_breakpoints_cleanup (int show) | |
1709 | { | |
1710 | int current = show_memory_breakpoints; | |
8defab1a | 1711 | |
5d502164 | 1712 | show_memory_breakpoints = show; |
8defab1a DJ |
1713 | return make_cleanup (restore_show_memory_breakpoints, |
1714 | (void *) (uintptr_t) current); | |
1715 | } | |
1716 | ||
7f79c47e DE |
1717 | /* For docs see target.h, to_xfer_partial. */ |
1718 | ||
9b409511 | 1719 | enum target_xfer_status |
27394598 AC |
1720 | target_xfer_partial (struct target_ops *ops, |
1721 | enum target_object object, const char *annex, | |
4ac248ca | 1722 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1723 | ULONGEST offset, ULONGEST len, |
1724 | ULONGEST *xfered_len) | |
27394598 | 1725 | { |
9b409511 | 1726 | enum target_xfer_status retval; |
27394598 AC |
1727 | |
1728 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1729 | |
ce6d0892 YQ |
1730 | /* Transfer is done when LEN is zero. */ |
1731 | if (len == 0) | |
9b409511 | 1732 | return TARGET_XFER_EOF; |
ce6d0892 | 1733 | |
d914c394 SS |
1734 | if (writebuf && !may_write_memory) |
1735 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1736 | core_addr_to_string_nz (offset), plongest (len)); | |
1737 | ||
9b409511 YQ |
1738 | *xfered_len = 0; |
1739 | ||
cf7a04e8 DJ |
1740 | /* If this is a memory transfer, let the memory-specific code |
1741 | have a look at it instead. Memory transfers are more | |
1742 | complicated. */ | |
29453a14 YQ |
1743 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1744 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1745 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1746 | writebuf, offset, len, xfered_len); |
9f713294 | 1747 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1748 | { |
9f713294 | 1749 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1750 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1751 | xfered_len); | |
cf7a04e8 | 1752 | } |
9f713294 YQ |
1753 | else |
1754 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1755 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1756 | |
27394598 AC |
1757 | if (targetdebug) |
1758 | { | |
1759 | const unsigned char *myaddr = NULL; | |
1760 | ||
1761 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1762 | "%s:target_xfer_partial " |
9b409511 | 1763 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1764 | ops->to_shortname, |
1765 | (int) object, | |
1766 | (annex ? annex : "(null)"), | |
53b71562 JB |
1767 | host_address_to_string (readbuf), |
1768 | host_address_to_string (writebuf), | |
0b1553bc | 1769 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1770 | pulongest (len), retval, |
1771 | pulongest (*xfered_len)); | |
27394598 AC |
1772 | |
1773 | if (readbuf) | |
1774 | myaddr = readbuf; | |
1775 | if (writebuf) | |
1776 | myaddr = writebuf; | |
9b409511 | 1777 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1778 | { |
1779 | int i; | |
2bc416ba | 1780 | |
27394598 | 1781 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1782 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1783 | { |
53b71562 | 1784 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1785 | { |
1786 | if (targetdebug < 2 && i > 0) | |
1787 | { | |
1788 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1789 | break; | |
1790 | } | |
1791 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1792 | } | |
2bc416ba | 1793 | |
27394598 AC |
1794 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1795 | } | |
1796 | } | |
2bc416ba | 1797 | |
27394598 AC |
1798 | fputc_unfiltered ('\n', gdb_stdlog); |
1799 | } | |
9b409511 YQ |
1800 | |
1801 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1802 | properly. Do assertion after printing debug messages, so that we | |
1803 | can find more clues on assertion failure from debugging messages. */ | |
1804 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1805 | gdb_assert (*xfered_len > 0); | |
1806 | ||
27394598 AC |
1807 | return retval; |
1808 | } | |
1809 | ||
578d3588 PA |
1810 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1811 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1812 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1813 | |
1814 | If an error occurs, no guarantee is made about the contents of the data at | |
1815 | MYADDR. In particular, the caller should not depend upon partial reads | |
1816 | filling the buffer with good data. There is no way for the caller to know | |
1817 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1818 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1819 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1820 | |
1821 | int | |
1b162304 | 1822 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1823 | { |
c35b1492 PA |
1824 | /* Dispatch to the topmost target, not the flattened current_target. |
1825 | Memory accesses check target->to_has_(all_)memory, and the | |
1826 | flattened target doesn't inherit those. */ | |
1827 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1828 | myaddr, memaddr, len) == len) |
1829 | return 0; | |
0779438d | 1830 | else |
578d3588 | 1831 | return TARGET_XFER_E_IO; |
c906108c SS |
1832 | } |
1833 | ||
aee4bf85 PA |
1834 | /* Like target_read_memory, but specify explicitly that this is a read |
1835 | from the target's raw memory. That is, this read bypasses the | |
1836 | dcache, breakpoint shadowing, etc. */ | |
1837 | ||
1838 | int | |
1839 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1840 | { | |
1841 | /* See comment in target_read_memory about why the request starts at | |
1842 | current_target.beneath. */ | |
1843 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1844 | myaddr, memaddr, len) == len) | |
1845 | return 0; | |
1846 | else | |
1847 | return TARGET_XFER_E_IO; | |
1848 | } | |
1849 | ||
4e5d721f DE |
1850 | /* Like target_read_memory, but specify explicitly that this is a read from |
1851 | the target's stack. This may trigger different cache behavior. */ | |
1852 | ||
1853 | int | |
45aa4659 | 1854 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1855 | { |
aee4bf85 PA |
1856 | /* See comment in target_read_memory about why the request starts at |
1857 | current_target.beneath. */ | |
4e5d721f DE |
1858 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1859 | myaddr, memaddr, len) == len) | |
1860 | return 0; | |
1861 | else | |
578d3588 | 1862 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1863 | } |
1864 | ||
29453a14 YQ |
1865 | /* Like target_read_memory, but specify explicitly that this is a read from |
1866 | the target's code. This may trigger different cache behavior. */ | |
1867 | ||
1868 | int | |
1869 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1870 | { | |
aee4bf85 PA |
1871 | /* See comment in target_read_memory about why the request starts at |
1872 | current_target.beneath. */ | |
29453a14 YQ |
1873 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1874 | myaddr, memaddr, len) == len) | |
1875 | return 0; | |
1876 | else | |
1877 | return TARGET_XFER_E_IO; | |
1878 | } | |
1879 | ||
7f79c47e | 1880 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1881 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1882 | error occurs. If an error occurs, no guarantee is made about how |
1883 | much data got written. Callers that can deal with partial writes | |
1884 | should call target_write. */ | |
7f79c47e | 1885 | |
c906108c | 1886 | int |
45aa4659 | 1887 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1888 | { |
aee4bf85 PA |
1889 | /* See comment in target_read_memory about why the request starts at |
1890 | current_target.beneath. */ | |
c35b1492 | 1891 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1892 | myaddr, memaddr, len) == len) |
1893 | return 0; | |
0779438d | 1894 | else |
578d3588 | 1895 | return TARGET_XFER_E_IO; |
c906108c | 1896 | } |
c5aa993b | 1897 | |
f0ba3972 | 1898 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1899 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1900 | if any error occurs. If an error occurs, no guarantee is made |
1901 | about how much data got written. Callers that can deal with | |
1902 | partial writes should call target_write. */ | |
f0ba3972 PA |
1903 | |
1904 | int | |
45aa4659 | 1905 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1906 | { |
aee4bf85 PA |
1907 | /* See comment in target_read_memory about why the request starts at |
1908 | current_target.beneath. */ | |
f0ba3972 PA |
1909 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1910 | myaddr, memaddr, len) == len) | |
1911 | return 0; | |
1912 | else | |
578d3588 | 1913 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1914 | } |
1915 | ||
fd79ecee DJ |
1916 | /* Fetch the target's memory map. */ |
1917 | ||
1918 | VEC(mem_region_s) * | |
1919 | target_memory_map (void) | |
1920 | { | |
1921 | VEC(mem_region_s) *result; | |
1922 | struct mem_region *last_one, *this_one; | |
1923 | int ix; | |
1924 | struct target_ops *t; | |
1925 | ||
1926 | if (targetdebug) | |
1927 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1928 | ||
1929 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1930 | if (t->to_memory_map != NULL) | |
1931 | break; | |
1932 | ||
1933 | if (t == NULL) | |
1934 | return NULL; | |
1935 | ||
1936 | result = t->to_memory_map (t); | |
1937 | if (result == NULL) | |
1938 | return NULL; | |
1939 | ||
1940 | qsort (VEC_address (mem_region_s, result), | |
1941 | VEC_length (mem_region_s, result), | |
1942 | sizeof (struct mem_region), mem_region_cmp); | |
1943 | ||
1944 | /* Check that regions do not overlap. Simultaneously assign | |
1945 | a numbering for the "mem" commands to use to refer to | |
1946 | each region. */ | |
1947 | last_one = NULL; | |
1948 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1949 | { | |
1950 | this_one->number = ix; | |
1951 | ||
1952 | if (last_one && last_one->hi > this_one->lo) | |
1953 | { | |
1954 | warning (_("Overlapping regions in memory map: ignoring")); | |
1955 | VEC_free (mem_region_s, result); | |
1956 | return NULL; | |
1957 | } | |
1958 | last_one = this_one; | |
1959 | } | |
1960 | ||
1961 | return result; | |
1962 | } | |
1963 | ||
a76d924d DJ |
1964 | void |
1965 | target_flash_erase (ULONGEST address, LONGEST length) | |
1966 | { | |
1967 | struct target_ops *t; | |
1968 | ||
1969 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1970 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1971 | { |
1972 | if (targetdebug) | |
1973 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1974 | hex_string (address), phex (length, 0)); | |
1975 | t->to_flash_erase (t, address, length); | |
1976 | return; | |
1977 | } | |
a76d924d DJ |
1978 | |
1979 | tcomplain (); | |
1980 | } | |
1981 | ||
1982 | void | |
1983 | target_flash_done (void) | |
1984 | { | |
1985 | struct target_ops *t; | |
1986 | ||
1987 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1988 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1989 | { |
1990 | if (targetdebug) | |
1991 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1992 | t->to_flash_done (t); | |
1993 | return; | |
1994 | } | |
a76d924d DJ |
1995 | |
1996 | tcomplain (); | |
1997 | } | |
1998 | ||
920d2a44 AC |
1999 | static void |
2000 | show_trust_readonly (struct ui_file *file, int from_tty, | |
2001 | struct cmd_list_element *c, const char *value) | |
2002 | { | |
3e43a32a MS |
2003 | fprintf_filtered (file, |
2004 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
2005 | value); |
2006 | } | |
3a11626d | 2007 | |
1e3ff5ad AC |
2008 | /* More generic transfers. */ |
2009 | ||
9b409511 | 2010 | static enum target_xfer_status |
8aa91c1e | 2011 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 2012 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
2013 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
2014 | ULONGEST *xfered_len) | |
0088c768 AC |
2015 | { |
2016 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
2017 | && ops->deprecated_xfer_memory != NULL) |
2018 | /* If available, fall back to the target's | |
2019 | "deprecated_xfer_memory" method. */ | |
0088c768 | 2020 | { |
4b8a223f | 2021 | int xfered = -1; |
5d502164 | 2022 | |
0088c768 | 2023 | errno = 0; |
4b8a223f AC |
2024 | if (writebuf != NULL) |
2025 | { | |
2026 | void *buffer = xmalloc (len); | |
2027 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 2028 | |
4b8a223f | 2029 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
2030 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
2031 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
2032 | do_cleanups (cleanup); |
2033 | } | |
2034 | if (readbuf != NULL) | |
244e85c8 MS |
2035 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
2036 | 0/*read*/, NULL, ops); | |
0088c768 | 2037 | if (xfered > 0) |
9b409511 YQ |
2038 | { |
2039 | *xfered_len = (ULONGEST) xfered; | |
2040 | return TARGET_XFER_E_IO; | |
2041 | } | |
0088c768 | 2042 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
2043 | /* "deprecated_xfer_memory" uses 0, cross checked against |
2044 | ERRNO as one indication of an error. */ | |
9b409511 | 2045 | return TARGET_XFER_EOF; |
0088c768 | 2046 | else |
9b409511 | 2047 | return TARGET_XFER_E_IO; |
0088c768 | 2048 | } |
0088c768 | 2049 | else |
6b84065d TT |
2050 | { |
2051 | gdb_assert (ops->beneath != NULL); | |
2052 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2053 | readbuf, writebuf, offset, len, | |
2054 | xfered_len); | |
2055 | } | |
0088c768 AC |
2056 | } |
2057 | ||
7f79c47e | 2058 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2059 | |
9b409511 | 2060 | static enum target_xfer_status |
1e3ff5ad AC |
2061 | target_read_partial (struct target_ops *ops, |
2062 | enum target_object object, | |
1b0ba102 | 2063 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
2064 | ULONGEST offset, ULONGEST len, |
2065 | ULONGEST *xfered_len) | |
1e3ff5ad | 2066 | { |
9b409511 YQ |
2067 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
2068 | xfered_len); | |
1e3ff5ad AC |
2069 | } |
2070 | ||
8a55ffb0 | 2071 | static enum target_xfer_status |
1e3ff5ad AC |
2072 | target_write_partial (struct target_ops *ops, |
2073 | enum target_object object, | |
1b0ba102 | 2074 | const char *annex, const gdb_byte *buf, |
9b409511 | 2075 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 2076 | { |
9b409511 YQ |
2077 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
2078 | xfered_len); | |
1e3ff5ad AC |
2079 | } |
2080 | ||
2081 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2082 | |
2083 | /* For docs on target_read see target.h. */ | |
2084 | ||
1e3ff5ad AC |
2085 | LONGEST |
2086 | target_read (struct target_ops *ops, | |
2087 | enum target_object object, | |
1b0ba102 | 2088 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2089 | ULONGEST offset, LONGEST len) |
2090 | { | |
2091 | LONGEST xfered = 0; | |
5d502164 | 2092 | |
1e3ff5ad AC |
2093 | while (xfered < len) |
2094 | { | |
9b409511 YQ |
2095 | ULONGEST xfered_len; |
2096 | enum target_xfer_status status; | |
2097 | ||
2098 | status = target_read_partial (ops, object, annex, | |
2099 | (gdb_byte *) buf + xfered, | |
2100 | offset + xfered, len - xfered, | |
2101 | &xfered_len); | |
5d502164 | 2102 | |
1e3ff5ad | 2103 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 2104 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2105 | return xfered; |
9b409511 YQ |
2106 | else if (status == TARGET_XFER_OK) |
2107 | { | |
2108 | xfered += xfered_len; | |
2109 | QUIT; | |
2110 | } | |
2111 | else | |
0088c768 | 2112 | return -1; |
9b409511 | 2113 | |
1e3ff5ad AC |
2114 | } |
2115 | return len; | |
2116 | } | |
2117 | ||
f1a507a1 JB |
2118 | /* Assuming that the entire [begin, end) range of memory cannot be |
2119 | read, try to read whatever subrange is possible to read. | |
2120 | ||
2121 | The function returns, in RESULT, either zero or one memory block. | |
2122 | If there's a readable subrange at the beginning, it is completely | |
2123 | read and returned. Any further readable subrange will not be read. | |
2124 | Otherwise, if there's a readable subrange at the end, it will be | |
2125 | completely read and returned. Any readable subranges before it | |
2126 | (obviously, not starting at the beginning), will be ignored. In | |
2127 | other cases -- either no readable subrange, or readable subrange(s) | |
2128 | that is neither at the beginning, or end, nothing is returned. | |
2129 | ||
2130 | The purpose of this function is to handle a read across a boundary | |
2131 | of accessible memory in a case when memory map is not available. | |
2132 | The above restrictions are fine for this case, but will give | |
2133 | incorrect results if the memory is 'patchy'. However, supporting | |
2134 | 'patchy' memory would require trying to read every single byte, | |
2135 | and it seems unacceptable solution. Explicit memory map is | |
2136 | recommended for this case -- and target_read_memory_robust will | |
2137 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2138 | |
2139 | static void | |
3e43a32a MS |
2140 | read_whatever_is_readable (struct target_ops *ops, |
2141 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2142 | VEC(memory_read_result_s) **result) |
d5086790 | 2143 | { |
f1a507a1 | 2144 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2145 | ULONGEST current_begin = begin; |
2146 | ULONGEST current_end = end; | |
2147 | int forward; | |
2148 | memory_read_result_s r; | |
9b409511 | 2149 | ULONGEST xfered_len; |
8dedea02 VP |
2150 | |
2151 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2152 | if (end - begin <= 1) | |
13b3fd9b MS |
2153 | { |
2154 | xfree (buf); | |
2155 | return; | |
2156 | } | |
8dedea02 VP |
2157 | |
2158 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2159 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2160 | at the boundary of accessible region. */ |
2161 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 2162 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
2163 | { |
2164 | forward = 1; | |
2165 | ++current_begin; | |
2166 | } | |
2167 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
2168 | buf + (end-begin) - 1, end - 1, 1, |
2169 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
2170 | { |
2171 | forward = 0; | |
2172 | --current_end; | |
2173 | } | |
2174 | else | |
2175 | { | |
13b3fd9b | 2176 | xfree (buf); |
8dedea02 VP |
2177 | return; |
2178 | } | |
2179 | ||
2180 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2181 | found to be not readable as a whole. | |
2182 | ||
2183 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2184 | so there's no point trying further. */ | |
2185 | while (current_end - current_begin > 1) | |
2186 | { | |
2187 | ULONGEST first_half_begin, first_half_end; | |
2188 | ULONGEST second_half_begin, second_half_end; | |
2189 | LONGEST xfer; | |
8dedea02 | 2190 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2191 | |
8dedea02 VP |
2192 | if (forward) |
2193 | { | |
2194 | first_half_begin = current_begin; | |
2195 | first_half_end = middle; | |
2196 | second_half_begin = middle; | |
2197 | second_half_end = current_end; | |
2198 | } | |
2199 | else | |
2200 | { | |
2201 | first_half_begin = middle; | |
2202 | first_half_end = current_end; | |
2203 | second_half_begin = current_begin; | |
2204 | second_half_end = middle; | |
2205 | } | |
2206 | ||
2207 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2208 | buf + (first_half_begin - begin), | |
2209 | first_half_begin, | |
2210 | first_half_end - first_half_begin); | |
2211 | ||
2212 | if (xfer == first_half_end - first_half_begin) | |
2213 | { | |
c378eb4e | 2214 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2215 | other half. */ |
8dedea02 VP |
2216 | current_begin = second_half_begin; |
2217 | current_end = second_half_end; | |
2218 | } | |
2219 | else | |
2220 | { | |
c378eb4e MS |
2221 | /* This half is not readable. Because we've tried one byte, we |
2222 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2223 | iteration to divide again and try to read. |
2224 | ||
2225 | We don't handle the other half, because this function only tries | |
2226 | to read a single readable subrange. */ | |
2227 | current_begin = first_half_begin; | |
2228 | current_end = first_half_end; | |
2229 | } | |
2230 | } | |
2231 | ||
2232 | if (forward) | |
2233 | { | |
2234 | /* The [begin, current_begin) range has been read. */ | |
2235 | r.begin = begin; | |
2236 | r.end = current_begin; | |
2237 | r.data = buf; | |
2238 | } | |
2239 | else | |
2240 | { | |
2241 | /* The [current_end, end) range has been read. */ | |
2242 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2243 | |
8dedea02 VP |
2244 | r.data = xmalloc (rlen); |
2245 | memcpy (r.data, buf + current_end - begin, rlen); | |
2246 | r.begin = current_end; | |
2247 | r.end = end; | |
2248 | xfree (buf); | |
2249 | } | |
2250 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2251 | } | |
2252 | ||
2253 | void | |
2254 | free_memory_read_result_vector (void *x) | |
2255 | { | |
2256 | VEC(memory_read_result_s) *v = x; | |
2257 | memory_read_result_s *current; | |
2258 | int ix; | |
2259 | ||
2260 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2261 | { | |
2262 | xfree (current->data); | |
2263 | } | |
2264 | VEC_free (memory_read_result_s, v); | |
2265 | } | |
2266 | ||
2267 | VEC(memory_read_result_s) * | |
2268 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2269 | { | |
2270 | VEC(memory_read_result_s) *result = 0; | |
2271 | ||
2272 | LONGEST xfered = 0; | |
d5086790 VP |
2273 | while (xfered < len) |
2274 | { | |
8dedea02 VP |
2275 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2276 | LONGEST rlen; | |
5d502164 | 2277 | |
8dedea02 VP |
2278 | /* If there is no explicit region, a fake one should be created. */ |
2279 | gdb_assert (region); | |
2280 | ||
2281 | if (region->hi == 0) | |
2282 | rlen = len - xfered; | |
2283 | else | |
2284 | rlen = region->hi - offset; | |
2285 | ||
2286 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2287 | { |
c378eb4e | 2288 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2289 | if the region is explicitly marked inaccessible, or |
2290 | 'inaccessible-by-default' is in effect. */ | |
2291 | xfered += rlen; | |
2292 | } | |
2293 | else | |
2294 | { | |
2295 | LONGEST to_read = min (len - xfered, rlen); | |
2296 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2297 | ||
2298 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2299 | (gdb_byte *) buffer, | |
2300 | offset + xfered, to_read); | |
2301 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2302 | if (xfer <= 0) |
d5086790 | 2303 | { |
c378eb4e | 2304 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2305 | some subrange. */ |
2306 | xfree (buffer); | |
3e43a32a MS |
2307 | read_whatever_is_readable (ops, offset + xfered, |
2308 | offset + xfered + to_read, &result); | |
8dedea02 | 2309 | xfered += to_read; |
d5086790 | 2310 | } |
8dedea02 VP |
2311 | else |
2312 | { | |
2313 | struct memory_read_result r; | |
2314 | r.data = buffer; | |
2315 | r.begin = offset + xfered; | |
2316 | r.end = r.begin + xfer; | |
2317 | VEC_safe_push (memory_read_result_s, result, &r); | |
2318 | xfered += xfer; | |
2319 | } | |
2320 | QUIT; | |
d5086790 | 2321 | } |
d5086790 | 2322 | } |
8dedea02 | 2323 | return result; |
d5086790 VP |
2324 | } |
2325 | ||
8dedea02 | 2326 | |
cf7a04e8 DJ |
2327 | /* An alternative to target_write with progress callbacks. */ |
2328 | ||
1e3ff5ad | 2329 | LONGEST |
cf7a04e8 DJ |
2330 | target_write_with_progress (struct target_ops *ops, |
2331 | enum target_object object, | |
2332 | const char *annex, const gdb_byte *buf, | |
2333 | ULONGEST offset, LONGEST len, | |
2334 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2335 | { |
2336 | LONGEST xfered = 0; | |
a76d924d DJ |
2337 | |
2338 | /* Give the progress callback a chance to set up. */ | |
2339 | if (progress) | |
2340 | (*progress) (0, baton); | |
2341 | ||
1e3ff5ad AC |
2342 | while (xfered < len) |
2343 | { | |
9b409511 YQ |
2344 | ULONGEST xfered_len; |
2345 | enum target_xfer_status status; | |
2346 | ||
2347 | status = target_write_partial (ops, object, annex, | |
2348 | (gdb_byte *) buf + xfered, | |
2349 | offset + xfered, len - xfered, | |
2350 | &xfered_len); | |
cf7a04e8 | 2351 | |
9b409511 | 2352 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2353 | return xfered; |
9b409511 | 2354 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2355 | return -1; |
cf7a04e8 | 2356 | |
9b409511 | 2357 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2358 | if (progress) |
9b409511 | 2359 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2360 | |
9b409511 | 2361 | xfered += xfered_len; |
1e3ff5ad AC |
2362 | QUIT; |
2363 | } | |
2364 | return len; | |
2365 | } | |
2366 | ||
7f79c47e DE |
2367 | /* For docs on target_write see target.h. */ |
2368 | ||
cf7a04e8 DJ |
2369 | LONGEST |
2370 | target_write (struct target_ops *ops, | |
2371 | enum target_object object, | |
2372 | const char *annex, const gdb_byte *buf, | |
2373 | ULONGEST offset, LONGEST len) | |
2374 | { | |
2375 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2376 | NULL, NULL); | |
2377 | } | |
2378 | ||
159f81f3 DJ |
2379 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2380 | the size of the transferred data. PADDING additional bytes are | |
2381 | available in *BUF_P. This is a helper function for | |
2382 | target_read_alloc; see the declaration of that function for more | |
2383 | information. */ | |
13547ab6 | 2384 | |
159f81f3 DJ |
2385 | static LONGEST |
2386 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2387 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2388 | { |
2389 | size_t buf_alloc, buf_pos; | |
2390 | gdb_byte *buf; | |
13547ab6 DJ |
2391 | |
2392 | /* This function does not have a length parameter; it reads the | |
2393 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2394 | from one target and partly from another (in a different stratum, | |
2395 | e.g. a core file and an executable). Both reasons make it | |
2396 | unsuitable for reading memory. */ | |
2397 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2398 | ||
2399 | /* Start by reading up to 4K at a time. The target will throttle | |
2400 | this number down if necessary. */ | |
2401 | buf_alloc = 4096; | |
2402 | buf = xmalloc (buf_alloc); | |
2403 | buf_pos = 0; | |
2404 | while (1) | |
2405 | { | |
9b409511 YQ |
2406 | ULONGEST xfered_len; |
2407 | enum target_xfer_status status; | |
2408 | ||
2409 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2410 | buf_pos, buf_alloc - buf_pos - padding, | |
2411 | &xfered_len); | |
2412 | ||
2413 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2414 | { |
2415 | /* Read all there was. */ | |
2416 | if (buf_pos == 0) | |
2417 | xfree (buf); | |
2418 | else | |
2419 | *buf_p = buf; | |
2420 | return buf_pos; | |
2421 | } | |
9b409511 YQ |
2422 | else if (status != TARGET_XFER_OK) |
2423 | { | |
2424 | /* An error occurred. */ | |
2425 | xfree (buf); | |
2426 | return TARGET_XFER_E_IO; | |
2427 | } | |
13547ab6 | 2428 | |
9b409511 | 2429 | buf_pos += xfered_len; |
13547ab6 DJ |
2430 | |
2431 | /* If the buffer is filling up, expand it. */ | |
2432 | if (buf_alloc < buf_pos * 2) | |
2433 | { | |
2434 | buf_alloc *= 2; | |
2435 | buf = xrealloc (buf, buf_alloc); | |
2436 | } | |
2437 | ||
2438 | QUIT; | |
2439 | } | |
2440 | } | |
2441 | ||
159f81f3 DJ |
2442 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2443 | the size of the transferred data. See the declaration in "target.h" | |
2444 | function for more information about the return value. */ | |
2445 | ||
2446 | LONGEST | |
2447 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2448 | const char *annex, gdb_byte **buf_p) | |
2449 | { | |
2450 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2451 | } | |
2452 | ||
2453 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2454 | returned as a string, allocated using xmalloc. If an error occurs | |
2455 | or the transfer is unsupported, NULL is returned. Empty objects | |
2456 | are returned as allocated but empty strings. A warning is issued | |
2457 | if the result contains any embedded NUL bytes. */ | |
2458 | ||
2459 | char * | |
2460 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2461 | const char *annex) | |
2462 | { | |
39086a0e PA |
2463 | gdb_byte *buffer; |
2464 | char *bufstr; | |
7313baad | 2465 | LONGEST i, transferred; |
159f81f3 | 2466 | |
39086a0e PA |
2467 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2468 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2469 | |
2470 | if (transferred < 0) | |
2471 | return NULL; | |
2472 | ||
2473 | if (transferred == 0) | |
2474 | return xstrdup (""); | |
2475 | ||
39086a0e | 2476 | bufstr[transferred] = 0; |
7313baad UW |
2477 | |
2478 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2479 | for (i = strlen (bufstr); i < transferred; i++) |
2480 | if (bufstr[i] != 0) | |
7313baad UW |
2481 | { |
2482 | warning (_("target object %d, annex %s, " | |
2483 | "contained unexpected null characters"), | |
2484 | (int) object, annex ? annex : "(none)"); | |
2485 | break; | |
2486 | } | |
159f81f3 | 2487 | |
39086a0e | 2488 | return bufstr; |
159f81f3 DJ |
2489 | } |
2490 | ||
b6591e8b AC |
2491 | /* Memory transfer methods. */ |
2492 | ||
2493 | void | |
1b0ba102 | 2494 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2495 | LONGEST len) |
2496 | { | |
07b82ea5 PA |
2497 | /* This method is used to read from an alternate, non-current |
2498 | target. This read must bypass the overlay support (as symbols | |
2499 | don't match this target), and GDB's internal cache (wrong cache | |
2500 | for this target). */ | |
2501 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2502 | != len) |
578d3588 | 2503 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2504 | } |
2505 | ||
2506 | ULONGEST | |
5d502164 MS |
2507 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2508 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2509 | { |
f6519ebc | 2510 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2511 | |
2512 | gdb_assert (len <= sizeof (buf)); | |
2513 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2514 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2515 | } |
2516 | ||
3db08215 MM |
2517 | /* See target.h. */ |
2518 | ||
d914c394 SS |
2519 | int |
2520 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2521 | struct bp_target_info *bp_tgt) | |
2522 | { | |
2523 | if (!may_insert_breakpoints) | |
2524 | { | |
2525 | warning (_("May not insert breakpoints")); | |
2526 | return 1; | |
2527 | } | |
2528 | ||
6b84065d TT |
2529 | return current_target.to_insert_breakpoint (¤t_target, |
2530 | gdbarch, bp_tgt); | |
d914c394 SS |
2531 | } |
2532 | ||
3db08215 MM |
2533 | /* See target.h. */ |
2534 | ||
d914c394 | 2535 | int |
6b84065d TT |
2536 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2537 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2538 | { |
2539 | /* This is kind of a weird case to handle, but the permission might | |
2540 | have been changed after breakpoints were inserted - in which case | |
2541 | we should just take the user literally and assume that any | |
2542 | breakpoints should be left in place. */ | |
2543 | if (!may_insert_breakpoints) | |
2544 | { | |
2545 | warning (_("May not remove breakpoints")); | |
2546 | return 1; | |
2547 | } | |
2548 | ||
6b84065d TT |
2549 | return current_target.to_remove_breakpoint (¤t_target, |
2550 | gdbarch, bp_tgt); | |
d914c394 SS |
2551 | } |
2552 | ||
c906108c | 2553 | static void |
fba45db2 | 2554 | target_info (char *args, int from_tty) |
c906108c SS |
2555 | { |
2556 | struct target_ops *t; | |
c906108c | 2557 | int has_all_mem = 0; |
c5aa993b | 2558 | |
c906108c | 2559 | if (symfile_objfile != NULL) |
4262abfb JK |
2560 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2561 | objfile_name (symfile_objfile)); | |
c906108c | 2562 | |
258b763a | 2563 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2564 | { |
c35b1492 | 2565 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2566 | continue; |
2567 | ||
c5aa993b | 2568 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2569 | continue; |
2570 | if (has_all_mem) | |
3e43a32a MS |
2571 | printf_unfiltered (_("\tWhile running this, " |
2572 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2573 | printf_unfiltered ("%s:\n", t->to_longname); |
2574 | (t->to_files_info) (t); | |
c35b1492 | 2575 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2576 | } |
2577 | } | |
2578 | ||
fd79ecee DJ |
2579 | /* This function is called before any new inferior is created, e.g. |
2580 | by running a program, attaching, or connecting to a target. | |
2581 | It cleans up any state from previous invocations which might | |
2582 | change between runs. This is a subset of what target_preopen | |
2583 | resets (things which might change between targets). */ | |
2584 | ||
2585 | void | |
2586 | target_pre_inferior (int from_tty) | |
2587 | { | |
c378eb4e | 2588 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2589 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2590 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2591 | to reproduce: |
2592 | ||
2593 | bash$ ./foo& | |
2594 | [1] 4711 | |
2595 | bash$ ./foo& | |
2596 | [1] 4712 | |
2597 | bash$ gdb ./foo | |
2598 | [...] | |
2599 | (gdb) attach 4711 | |
2600 | (gdb) detach | |
2601 | (gdb) attach 4712 | |
2602 | Cannot access memory at address 0xdeadbeef | |
2603 | */ | |
b9db4ced | 2604 | |
50c71eaf PA |
2605 | /* In some OSs, the shared library list is the same/global/shared |
2606 | across inferiors. If code is shared between processes, so are | |
2607 | memory regions and features. */ | |
f5656ead | 2608 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2609 | { |
2610 | no_shared_libraries (NULL, from_tty); | |
2611 | ||
2612 | invalidate_target_mem_regions (); | |
424163ea | 2613 | |
50c71eaf PA |
2614 | target_clear_description (); |
2615 | } | |
8ffcbaaf YQ |
2616 | |
2617 | agent_capability_invalidate (); | |
fd79ecee DJ |
2618 | } |
2619 | ||
b8fa0bfa PA |
2620 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2621 | inferior. */ | |
2622 | ||
2623 | static int | |
2624 | dispose_inferior (struct inferior *inf, void *args) | |
2625 | { | |
2626 | struct thread_info *thread; | |
2627 | ||
2628 | thread = any_thread_of_process (inf->pid); | |
2629 | if (thread) | |
2630 | { | |
2631 | switch_to_thread (thread->ptid); | |
2632 | ||
2633 | /* Core inferiors actually should be detached, not killed. */ | |
2634 | if (target_has_execution) | |
2635 | target_kill (); | |
2636 | else | |
2637 | target_detach (NULL, 0); | |
2638 | } | |
2639 | ||
2640 | return 0; | |
2641 | } | |
2642 | ||
c906108c SS |
2643 | /* This is to be called by the open routine before it does |
2644 | anything. */ | |
2645 | ||
2646 | void | |
fba45db2 | 2647 | target_preopen (int from_tty) |
c906108c | 2648 | { |
c5aa993b | 2649 | dont_repeat (); |
c906108c | 2650 | |
b8fa0bfa | 2651 | if (have_inferiors ()) |
c5aa993b | 2652 | { |
adf40b2e | 2653 | if (!from_tty |
b8fa0bfa PA |
2654 | || !have_live_inferiors () |
2655 | || query (_("A program is being debugged already. Kill it? "))) | |
2656 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2657 | else |
8a3fe4f8 | 2658 | error (_("Program not killed.")); |
c906108c SS |
2659 | } |
2660 | ||
2661 | /* Calling target_kill may remove the target from the stack. But if | |
2662 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2663 | /* Leave the exec target, though. The user may be switching from a |
2664 | live process to a core of the same program. */ | |
460014f5 | 2665 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2666 | |
2667 | target_pre_inferior (from_tty); | |
c906108c SS |
2668 | } |
2669 | ||
2670 | /* Detach a target after doing deferred register stores. */ | |
2671 | ||
2672 | void | |
52554a0e | 2673 | target_detach (const char *args, int from_tty) |
c906108c | 2674 | { |
136d6dae VP |
2675 | struct target_ops* t; |
2676 | ||
f5656ead | 2677 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2678 | /* Don't remove global breakpoints here. They're removed on |
2679 | disconnection from the target. */ | |
2680 | ; | |
2681 | else | |
2682 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2683 | them before detaching. */ | |
dfd4cc63 | 2684 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2685 | |
24291992 PA |
2686 | prepare_for_detach (); |
2687 | ||
136d6dae VP |
2688 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2689 | { | |
2690 | if (t->to_detach != NULL) | |
2691 | { | |
2692 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2693 | if (targetdebug) |
2694 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2695 | args, from_tty); | |
136d6dae VP |
2696 | return; |
2697 | } | |
2698 | } | |
2699 | ||
9b20d036 | 2700 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2701 | } |
2702 | ||
6ad8ae5c DJ |
2703 | void |
2704 | target_disconnect (char *args, int from_tty) | |
2705 | { | |
597320e7 DJ |
2706 | struct target_ops *t; |
2707 | ||
50c71eaf PA |
2708 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2709 | are global across processes, we have to remove them before | |
2710 | disconnecting. */ | |
74960c60 VP |
2711 | remove_breakpoints (); |
2712 | ||
597320e7 DJ |
2713 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2714 | if (t->to_disconnect != NULL) | |
2715 | { | |
2716 | if (targetdebug) | |
2717 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2718 | args, from_tty); | |
2719 | t->to_disconnect (t, args, from_tty); | |
2720 | return; | |
2721 | } | |
2722 | ||
2723 | tcomplain (); | |
6ad8ae5c DJ |
2724 | } |
2725 | ||
117de6a9 | 2726 | ptid_t |
47608cb1 | 2727 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2728 | { |
2729 | struct target_ops *t; | |
6b84065d TT |
2730 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2731 | status, options); | |
117de6a9 | 2732 | |
6b84065d | 2733 | if (targetdebug) |
117de6a9 | 2734 | { |
6b84065d TT |
2735 | char *status_string; |
2736 | char *options_string; | |
117de6a9 | 2737 | |
6b84065d TT |
2738 | status_string = target_waitstatus_to_string (status); |
2739 | options_string = target_options_to_string (options); | |
2740 | fprintf_unfiltered (gdb_stdlog, | |
2741 | "target_wait (%d, status, options={%s})" | |
2742 | " = %d, %s\n", | |
2743 | ptid_get_pid (ptid), options_string, | |
2744 | ptid_get_pid (retval), status_string); | |
2745 | xfree (status_string); | |
2746 | xfree (options_string); | |
117de6a9 PA |
2747 | } |
2748 | ||
6b84065d | 2749 | return retval; |
117de6a9 PA |
2750 | } |
2751 | ||
2752 | char * | |
2753 | target_pid_to_str (ptid_t ptid) | |
2754 | { | |
2755 | struct target_ops *t; | |
2756 | ||
2757 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2758 | { | |
2759 | if (t->to_pid_to_str != NULL) | |
2760 | return (*t->to_pid_to_str) (t, ptid); | |
2761 | } | |
2762 | ||
2763 | return normal_pid_to_str (ptid); | |
2764 | } | |
2765 | ||
4694da01 TT |
2766 | char * |
2767 | target_thread_name (struct thread_info *info) | |
2768 | { | |
2769 | struct target_ops *t; | |
2770 | ||
2771 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2772 | { | |
2773 | if (t->to_thread_name != NULL) | |
503a628d | 2774 | return (*t->to_thread_name) (t, info); |
4694da01 TT |
2775 | } |
2776 | ||
2777 | return NULL; | |
2778 | } | |
2779 | ||
e1ac3328 | 2780 | void |
2ea28649 | 2781 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2782 | { |
28439f5e PA |
2783 | struct target_ops *t; |
2784 | ||
4e5d721f | 2785 | target_dcache_invalidate (); |
28439f5e | 2786 | |
6b84065d TT |
2787 | current_target.to_resume (¤t_target, ptid, step, signal); |
2788 | if (targetdebug) | |
2789 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2790 | ptid_get_pid (ptid), | |
2791 | step ? "step" : "continue", | |
2792 | gdb_signal_to_name (signal)); | |
28439f5e | 2793 | |
6b84065d TT |
2794 | registers_changed_ptid (ptid); |
2795 | set_executing (ptid, 1); | |
2796 | set_running (ptid, 1); | |
2797 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2798 | } |
2455069d UW |
2799 | |
2800 | void | |
2801 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2802 | { | |
2803 | struct target_ops *t; | |
2804 | ||
2805 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2806 | { | |
2807 | if (t->to_pass_signals != NULL) | |
2808 | { | |
2809 | if (targetdebug) | |
2810 | { | |
2811 | int i; | |
2812 | ||
2813 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2814 | numsigs); | |
2815 | ||
2816 | for (i = 0; i < numsigs; i++) | |
2817 | if (pass_signals[i]) | |
2818 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2819 | gdb_signal_to_name (i)); |
2455069d UW |
2820 | |
2821 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2822 | } | |
2823 | ||
94bedb42 | 2824 | (*t->to_pass_signals) (t, numsigs, pass_signals); |
2455069d UW |
2825 | return; |
2826 | } | |
2827 | } | |
2828 | } | |
2829 | ||
9b224c5e PA |
2830 | void |
2831 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2832 | { | |
2833 | struct target_ops *t; | |
2834 | ||
2835 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2836 | { | |
2837 | if (t->to_program_signals != NULL) | |
2838 | { | |
2839 | if (targetdebug) | |
2840 | { | |
2841 | int i; | |
2842 | ||
2843 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2844 | numsigs); | |
2845 | ||
2846 | for (i = 0; i < numsigs; i++) | |
2847 | if (program_signals[i]) | |
2848 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2849 | gdb_signal_to_name (i)); |
9b224c5e PA |
2850 | |
2851 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2852 | } | |
2853 | ||
daf5e9b6 | 2854 | (*t->to_program_signals) (t, numsigs, program_signals); |
9b224c5e PA |
2855 | return; |
2856 | } | |
2857 | } | |
2858 | } | |
2859 | ||
ee057212 DJ |
2860 | /* Look through the list of possible targets for a target that can |
2861 | follow forks. */ | |
2862 | ||
2863 | int | |
07107ca6 | 2864 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2865 | { |
2866 | struct target_ops *t; | |
2867 | ||
2868 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2869 | { | |
2870 | if (t->to_follow_fork != NULL) | |
2871 | { | |
07107ca6 | 2872 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2873 | |
ee057212 | 2874 | if (targetdebug) |
07107ca6 LM |
2875 | fprintf_unfiltered (gdb_stdlog, |
2876 | "target_follow_fork (%d, %d) = %d\n", | |
2877 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2878 | return retval; |
2879 | } | |
2880 | } | |
2881 | ||
2882 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2883 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2884 | _("could not find a target to follow fork")); |
ee057212 DJ |
2885 | } |
2886 | ||
136d6dae VP |
2887 | void |
2888 | target_mourn_inferior (void) | |
2889 | { | |
2890 | struct target_ops *t; | |
5d502164 | 2891 | |
136d6dae VP |
2892 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2893 | { | |
2894 | if (t->to_mourn_inferior != NULL) | |
2895 | { | |
2896 | t->to_mourn_inferior (t); | |
947b8855 PA |
2897 | if (targetdebug) |
2898 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2899 | |
2900 | /* We no longer need to keep handles on any of the object files. | |
2901 | Make sure to release them to avoid unnecessarily locking any | |
2902 | of them while we're not actually debugging. */ | |
2903 | bfd_cache_close_all (); | |
2904 | ||
136d6dae VP |
2905 | return; |
2906 | } | |
2907 | } | |
2908 | ||
2909 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2910 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2911 | } |
2912 | ||
424163ea DJ |
2913 | /* Look for a target which can describe architectural features, starting |
2914 | from TARGET. If we find one, return its description. */ | |
2915 | ||
2916 | const struct target_desc * | |
2917 | target_read_description (struct target_ops *target) | |
2918 | { | |
2919 | struct target_ops *t; | |
2920 | ||
2921 | for (t = target; t != NULL; t = t->beneath) | |
2922 | if (t->to_read_description != NULL) | |
2923 | { | |
2924 | const struct target_desc *tdesc; | |
2925 | ||
2926 | tdesc = t->to_read_description (t); | |
2927 | if (tdesc) | |
2928 | return tdesc; | |
2929 | } | |
2930 | ||
2931 | return NULL; | |
2932 | } | |
2933 | ||
08388c79 DE |
2934 | /* The default implementation of to_search_memory. |
2935 | This implements a basic search of memory, reading target memory and | |
2936 | performing the search here (as opposed to performing the search in on the | |
2937 | target side with, for example, gdbserver). */ | |
2938 | ||
2939 | int | |
2940 | simple_search_memory (struct target_ops *ops, | |
2941 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2942 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2943 | CORE_ADDR *found_addrp) | |
2944 | { | |
2945 | /* NOTE: also defined in find.c testcase. */ | |
2946 | #define SEARCH_CHUNK_SIZE 16000 | |
2947 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2948 | /* Buffer to hold memory contents for searching. */ | |
2949 | gdb_byte *search_buf; | |
2950 | unsigned search_buf_size; | |
2951 | struct cleanup *old_cleanups; | |
2952 | ||
2953 | search_buf_size = chunk_size + pattern_len - 1; | |
2954 | ||
2955 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2956 | if (search_space_len < search_buf_size) | |
2957 | search_buf_size = search_space_len; | |
2958 | ||
2959 | search_buf = malloc (search_buf_size); | |
2960 | if (search_buf == NULL) | |
5e1471f5 | 2961 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2962 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2963 | ||
2964 | /* Prime the search buffer. */ | |
2965 | ||
2966 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2967 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2968 | { | |
b3dc46ff AB |
2969 | warning (_("Unable to access %s bytes of target " |
2970 | "memory at %s, halting search."), | |
2971 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2972 | do_cleanups (old_cleanups); |
2973 | return -1; | |
2974 | } | |
2975 | ||
2976 | /* Perform the search. | |
2977 | ||
2978 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2979 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2980 | read in another N bytes. */ | |
2981 | ||
2982 | while (search_space_len >= pattern_len) | |
2983 | { | |
2984 | gdb_byte *found_ptr; | |
2985 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2986 | ||
2987 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2988 | pattern, pattern_len); | |
2989 | ||
2990 | if (found_ptr != NULL) | |
2991 | { | |
2992 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2993 | |
08388c79 DE |
2994 | *found_addrp = found_addr; |
2995 | do_cleanups (old_cleanups); | |
2996 | return 1; | |
2997 | } | |
2998 | ||
2999 | /* Not found in this chunk, skip to next chunk. */ | |
3000 | ||
3001 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
3002 | if (search_space_len >= chunk_size) | |
3003 | search_space_len -= chunk_size; | |
3004 | else | |
3005 | search_space_len = 0; | |
3006 | ||
3007 | if (search_space_len >= pattern_len) | |
3008 | { | |
3009 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 3010 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
3011 | int nr_to_read; |
3012 | ||
3013 | /* Copy the trailing part of the previous iteration to the front | |
3014 | of the buffer for the next iteration. */ | |
3015 | gdb_assert (keep_len == pattern_len - 1); | |
3016 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
3017 | ||
3018 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
3019 | ||
3020 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
3021 | search_buf + keep_len, read_addr, | |
3022 | nr_to_read) != nr_to_read) | |
3023 | { | |
b3dc46ff | 3024 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 3025 | "memory at %s, halting search."), |
b3dc46ff | 3026 | plongest (nr_to_read), |
08388c79 DE |
3027 | hex_string (read_addr)); |
3028 | do_cleanups (old_cleanups); | |
3029 | return -1; | |
3030 | } | |
3031 | ||
3032 | start_addr += chunk_size; | |
3033 | } | |
3034 | } | |
3035 | ||
3036 | /* Not found. */ | |
3037 | ||
3038 | do_cleanups (old_cleanups); | |
3039 | return 0; | |
3040 | } | |
3041 | ||
3042 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
3043 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
3044 | ||
3045 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
3046 | requiring halting of the search (e.g. memory read error). | |
3047 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
3048 | ||
3049 | int | |
3050 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
3051 | const gdb_byte *pattern, ULONGEST pattern_len, | |
3052 | CORE_ADDR *found_addrp) | |
3053 | { | |
3054 | struct target_ops *t; | |
3055 | int found; | |
3056 | ||
3057 | /* We don't use INHERIT to set current_target.to_search_memory, | |
3058 | so we have to scan the target stack and handle targetdebug | |
3059 | ourselves. */ | |
3060 | ||
3061 | if (targetdebug) | |
3062 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3063 | hex_string (start_addr)); | |
3064 | ||
3065 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3066 | if (t->to_search_memory != NULL) | |
3067 | break; | |
3068 | ||
3069 | if (t != NULL) | |
3070 | { | |
3071 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3072 | pattern, pattern_len, found_addrp); | |
3073 | } | |
3074 | else | |
3075 | { | |
3076 | /* If a special version of to_search_memory isn't available, use the | |
3077 | simple version. */ | |
c35b1492 | 3078 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3079 | start_addr, search_space_len, |
3080 | pattern, pattern_len, found_addrp); | |
3081 | } | |
3082 | ||
3083 | if (targetdebug) | |
3084 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3085 | ||
3086 | return found; | |
3087 | } | |
3088 | ||
8edfe269 DJ |
3089 | /* Look through the currently pushed targets. If none of them will |
3090 | be able to restart the currently running process, issue an error | |
3091 | message. */ | |
3092 | ||
3093 | void | |
3094 | target_require_runnable (void) | |
3095 | { | |
3096 | struct target_ops *t; | |
3097 | ||
3098 | for (t = target_stack; t != NULL; t = t->beneath) | |
3099 | { | |
3100 | /* If this target knows how to create a new program, then | |
3101 | assume we will still be able to after killing the current | |
3102 | one. Either killing and mourning will not pop T, or else | |
3103 | find_default_run_target will find it again. */ | |
3104 | if (t->to_create_inferior != NULL) | |
3105 | return; | |
3106 | ||
3107 | /* Do not worry about thread_stratum targets that can not | |
3108 | create inferiors. Assume they will be pushed again if | |
3109 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3110 | if (t->to_stratum == thread_stratum |
3111 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3112 | continue; |
3113 | ||
3e43a32a MS |
3114 | error (_("The \"%s\" target does not support \"run\". " |
3115 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3116 | t->to_shortname); |
3117 | } | |
3118 | ||
3119 | /* This function is only called if the target is running. In that | |
3120 | case there should have been a process_stratum target and it | |
c378eb4e | 3121 | should either know how to create inferiors, or not... */ |
9b20d036 | 3122 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3123 | } |
3124 | ||
c906108c SS |
3125 | /* Look through the list of possible targets for a target that can |
3126 | execute a run or attach command without any other data. This is | |
3127 | used to locate the default process stratum. | |
3128 | ||
5f667f2d PA |
3129 | If DO_MESG is not NULL, the result is always valid (error() is |
3130 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3131 | |
3132 | static struct target_ops * | |
fba45db2 | 3133 | find_default_run_target (char *do_mesg) |
c906108c SS |
3134 | { |
3135 | struct target_ops **t; | |
3136 | struct target_ops *runable = NULL; | |
3137 | int count; | |
3138 | ||
3139 | count = 0; | |
3140 | ||
3141 | for (t = target_structs; t < target_structs + target_struct_size; | |
3142 | ++t) | |
3143 | { | |
c5aa993b | 3144 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3145 | { |
3146 | runable = *t; | |
3147 | ++count; | |
3148 | } | |
3149 | } | |
3150 | ||
3151 | if (count != 1) | |
5f667f2d PA |
3152 | { |
3153 | if (do_mesg) | |
3154 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3155 | else | |
3156 | return NULL; | |
3157 | } | |
c906108c SS |
3158 | |
3159 | return runable; | |
3160 | } | |
3161 | ||
3162 | void | |
136d6dae | 3163 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3164 | { |
3165 | struct target_ops *t; | |
3166 | ||
c5aa993b | 3167 | t = find_default_run_target ("attach"); |
136d6dae | 3168 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3169 | return; |
3170 | } | |
3171 | ||
c906108c | 3172 | void |
136d6dae VP |
3173 | find_default_create_inferior (struct target_ops *ops, |
3174 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3175 | int from_tty) |
c906108c SS |
3176 | { |
3177 | struct target_ops *t; | |
3178 | ||
c5aa993b | 3179 | t = find_default_run_target ("run"); |
136d6dae | 3180 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3181 | return; |
3182 | } | |
3183 | ||
2c0b251b | 3184 | static int |
6a109b6b | 3185 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
3186 | { |
3187 | struct target_ops *t; | |
3188 | ||
5f667f2d PA |
3189 | /* This may be called before the target is pushed on the stack; |
3190 | look for the default process stratum. If there's none, gdb isn't | |
3191 | configured with a native debugger, and target remote isn't | |
3192 | connected yet. */ | |
3193 | t = find_default_run_target (NULL); | |
6b84065d | 3194 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 3195 | return (t->to_can_async_p) (t); |
b84876c2 PA |
3196 | return 0; |
3197 | } | |
3198 | ||
2c0b251b | 3199 | static int |
6a109b6b | 3200 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
3201 | { |
3202 | struct target_ops *t; | |
3203 | ||
5f667f2d PA |
3204 | /* This may be called before the target is pushed on the stack; |
3205 | look for the default process stratum. If there's none, gdb isn't | |
3206 | configured with a native debugger, and target remote isn't | |
3207 | connected yet. */ | |
3208 | t = find_default_run_target (NULL); | |
6b84065d | 3209 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 3210 | return (t->to_is_async_p) (t); |
b84876c2 PA |
3211 | return 0; |
3212 | } | |
3213 | ||
2c0b251b | 3214 | static int |
2a9a2795 | 3215 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
3216 | { |
3217 | struct target_ops *t; | |
3218 | ||
3219 | t = find_default_run_target (NULL); | |
3220 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 3221 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
3222 | return 0; |
3223 | } | |
3224 | ||
3225 | int | |
2c0b251b | 3226 | target_supports_non_stop (void) |
9908b566 VP |
3227 | { |
3228 | struct target_ops *t; | |
5d502164 | 3229 | |
9908b566 VP |
3230 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3231 | if (t->to_supports_non_stop) | |
2a9a2795 | 3232 | return t->to_supports_non_stop (t); |
9908b566 VP |
3233 | |
3234 | return 0; | |
3235 | } | |
3236 | ||
145b16a9 UW |
3237 | /* Implement the "info proc" command. */ |
3238 | ||
451b7c33 | 3239 | int |
145b16a9 UW |
3240 | target_info_proc (char *args, enum info_proc_what what) |
3241 | { | |
3242 | struct target_ops *t; | |
3243 | ||
3244 | /* If we're already connected to something that can get us OS | |
3245 | related data, use it. Otherwise, try using the native | |
3246 | target. */ | |
3247 | if (current_target.to_stratum >= process_stratum) | |
3248 | t = current_target.beneath; | |
3249 | else | |
3250 | t = find_default_run_target (NULL); | |
3251 | ||
3252 | for (; t != NULL; t = t->beneath) | |
3253 | { | |
3254 | if (t->to_info_proc != NULL) | |
3255 | { | |
3256 | t->to_info_proc (t, args, what); | |
3257 | ||
3258 | if (targetdebug) | |
3259 | fprintf_unfiltered (gdb_stdlog, | |
3260 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3261 | ||
451b7c33 | 3262 | return 1; |
145b16a9 UW |
3263 | } |
3264 | } | |
3265 | ||
451b7c33 | 3266 | return 0; |
145b16a9 UW |
3267 | } |
3268 | ||
03583c20 UW |
3269 | static int |
3270 | find_default_supports_disable_randomization (void) | |
3271 | { | |
3272 | struct target_ops *t; | |
3273 | ||
3274 | t = find_default_run_target (NULL); | |
3275 | if (t && t->to_supports_disable_randomization) | |
3276 | return (t->to_supports_disable_randomization) (); | |
3277 | return 0; | |
3278 | } | |
3279 | ||
3280 | int | |
3281 | target_supports_disable_randomization (void) | |
3282 | { | |
3283 | struct target_ops *t; | |
3284 | ||
3285 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3286 | if (t->to_supports_disable_randomization) | |
3287 | return t->to_supports_disable_randomization (); | |
3288 | ||
3289 | return 0; | |
3290 | } | |
9908b566 | 3291 | |
07e059b5 VP |
3292 | char * |
3293 | target_get_osdata (const char *type) | |
3294 | { | |
07e059b5 VP |
3295 | struct target_ops *t; |
3296 | ||
739ef7fb PA |
3297 | /* If we're already connected to something that can get us OS |
3298 | related data, use it. Otherwise, try using the native | |
3299 | target. */ | |
3300 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3301 | t = current_target.beneath; |
739ef7fb PA |
3302 | else |
3303 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3304 | |
3305 | if (!t) | |
3306 | return NULL; | |
3307 | ||
6d097e65 | 3308 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3309 | } |
3310 | ||
6c95b8df PA |
3311 | /* Determine the current address space of thread PTID. */ |
3312 | ||
3313 | struct address_space * | |
3314 | target_thread_address_space (ptid_t ptid) | |
3315 | { | |
c0694254 | 3316 | struct address_space *aspace; |
6c95b8df | 3317 | struct inferior *inf; |
c0694254 PA |
3318 | struct target_ops *t; |
3319 | ||
3320 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3321 | { | |
3322 | if (t->to_thread_address_space != NULL) | |
3323 | { | |
3324 | aspace = t->to_thread_address_space (t, ptid); | |
3325 | gdb_assert (aspace); | |
6c95b8df | 3326 | |
c0694254 PA |
3327 | if (targetdebug) |
3328 | fprintf_unfiltered (gdb_stdlog, | |
3329 | "target_thread_address_space (%s) = %d\n", | |
3330 | target_pid_to_str (ptid), | |
3331 | address_space_num (aspace)); | |
3332 | return aspace; | |
3333 | } | |
3334 | } | |
6c95b8df PA |
3335 | |
3336 | /* Fall-back to the "main" address space of the inferior. */ | |
3337 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3338 | ||
3339 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3340 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3341 | _("Can't determine the current " |
3342 | "address space of thread %s\n"), | |
6c95b8df PA |
3343 | target_pid_to_str (ptid)); |
3344 | ||
3345 | return inf->aspace; | |
3346 | } | |
3347 | ||
7313baad UW |
3348 | |
3349 | /* Target file operations. */ | |
3350 | ||
3351 | static struct target_ops * | |
3352 | default_fileio_target (void) | |
3353 | { | |
3354 | /* If we're already connected to something that can perform | |
3355 | file I/O, use it. Otherwise, try using the native target. */ | |
3356 | if (current_target.to_stratum >= process_stratum) | |
3357 | return current_target.beneath; | |
3358 | else | |
3359 | return find_default_run_target ("file I/O"); | |
3360 | } | |
3361 | ||
3362 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3363 | target file descriptor, or -1 if an error occurs (and set | |
3364 | *TARGET_ERRNO). */ | |
3365 | int | |
3366 | target_fileio_open (const char *filename, int flags, int mode, | |
3367 | int *target_errno) | |
3368 | { | |
3369 | struct target_ops *t; | |
3370 | ||
3371 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3372 | { | |
3373 | if (t->to_fileio_open != NULL) | |
3374 | { | |
3375 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3376 | ||
3377 | if (targetdebug) | |
3378 | fprintf_unfiltered (gdb_stdlog, | |
3379 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3380 | filename, flags, mode, | |
3381 | fd, fd != -1 ? 0 : *target_errno); | |
3382 | return fd; | |
3383 | } | |
3384 | } | |
3385 | ||
3386 | *target_errno = FILEIO_ENOSYS; | |
3387 | return -1; | |
3388 | } | |
3389 | ||
3390 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3391 | Return the number of bytes written, or -1 if an error occurs | |
3392 | (and set *TARGET_ERRNO). */ | |
3393 | int | |
3394 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3395 | ULONGEST offset, int *target_errno) | |
3396 | { | |
3397 | struct target_ops *t; | |
3398 | ||
3399 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3400 | { | |
3401 | if (t->to_fileio_pwrite != NULL) | |
3402 | { | |
3403 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3404 | target_errno); | |
3405 | ||
3406 | if (targetdebug) | |
3407 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3408 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3409 | "= %d (%d)\n", |
a71b5a38 | 3410 | fd, len, pulongest (offset), |
7313baad UW |
3411 | ret, ret != -1 ? 0 : *target_errno); |
3412 | return ret; | |
3413 | } | |
3414 | } | |
3415 | ||
3416 | *target_errno = FILEIO_ENOSYS; | |
3417 | return -1; | |
3418 | } | |
3419 | ||
3420 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3421 | Return the number of bytes read, or -1 if an error occurs | |
3422 | (and set *TARGET_ERRNO). */ | |
3423 | int | |
3424 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3425 | ULONGEST offset, int *target_errno) | |
3426 | { | |
3427 | struct target_ops *t; | |
3428 | ||
3429 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3430 | { | |
3431 | if (t->to_fileio_pread != NULL) | |
3432 | { | |
3433 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3434 | target_errno); | |
3435 | ||
3436 | if (targetdebug) | |
3437 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3438 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3439 | "= %d (%d)\n", |
a71b5a38 | 3440 | fd, len, pulongest (offset), |
7313baad UW |
3441 | ret, ret != -1 ? 0 : *target_errno); |
3442 | return ret; | |
3443 | } | |
3444 | } | |
3445 | ||
3446 | *target_errno = FILEIO_ENOSYS; | |
3447 | return -1; | |
3448 | } | |
3449 | ||
3450 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3451 | (and set *TARGET_ERRNO). */ | |
3452 | int | |
3453 | target_fileio_close (int fd, int *target_errno) | |
3454 | { | |
3455 | struct target_ops *t; | |
3456 | ||
3457 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3458 | { | |
3459 | if (t->to_fileio_close != NULL) | |
3460 | { | |
3461 | int ret = t->to_fileio_close (fd, target_errno); | |
3462 | ||
3463 | if (targetdebug) | |
3464 | fprintf_unfiltered (gdb_stdlog, | |
3465 | "target_fileio_close (%d) = %d (%d)\n", | |
3466 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3467 | return ret; | |
3468 | } | |
3469 | } | |
3470 | ||
3471 | *target_errno = FILEIO_ENOSYS; | |
3472 | return -1; | |
3473 | } | |
3474 | ||
3475 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3476 | occurs (and set *TARGET_ERRNO). */ | |
3477 | int | |
3478 | target_fileio_unlink (const char *filename, int *target_errno) | |
3479 | { | |
3480 | struct target_ops *t; | |
3481 | ||
3482 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3483 | { | |
3484 | if (t->to_fileio_unlink != NULL) | |
3485 | { | |
3486 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3487 | ||
3488 | if (targetdebug) | |
3489 | fprintf_unfiltered (gdb_stdlog, | |
3490 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3491 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3492 | return ret; | |
3493 | } | |
3494 | } | |
3495 | ||
3496 | *target_errno = FILEIO_ENOSYS; | |
3497 | return -1; | |
3498 | } | |
3499 | ||
b9e7b9c3 UW |
3500 | /* Read value of symbolic link FILENAME on the target. Return a |
3501 | null-terminated string allocated via xmalloc, or NULL if an error | |
3502 | occurs (and set *TARGET_ERRNO). */ | |
3503 | char * | |
3504 | target_fileio_readlink (const char *filename, int *target_errno) | |
3505 | { | |
3506 | struct target_ops *t; | |
3507 | ||
3508 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3509 | { | |
3510 | if (t->to_fileio_readlink != NULL) | |
3511 | { | |
3512 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3513 | ||
3514 | if (targetdebug) | |
3515 | fprintf_unfiltered (gdb_stdlog, | |
3516 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3517 | filename, ret? ret : "(nil)", | |
3518 | ret? 0 : *target_errno); | |
3519 | return ret; | |
3520 | } | |
3521 | } | |
3522 | ||
3523 | *target_errno = FILEIO_ENOSYS; | |
3524 | return NULL; | |
3525 | } | |
3526 | ||
7313baad UW |
3527 | static void |
3528 | target_fileio_close_cleanup (void *opaque) | |
3529 | { | |
3530 | int fd = *(int *) opaque; | |
3531 | int target_errno; | |
3532 | ||
3533 | target_fileio_close (fd, &target_errno); | |
3534 | } | |
3535 | ||
3536 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3537 | return the size of the transferred data. PADDING additional bytes are | |
3538 | available in *BUF_P. This is a helper function for | |
3539 | target_fileio_read_alloc; see the declaration of that function for more | |
3540 | information. */ | |
3541 | ||
3542 | static LONGEST | |
3543 | target_fileio_read_alloc_1 (const char *filename, | |
3544 | gdb_byte **buf_p, int padding) | |
3545 | { | |
3546 | struct cleanup *close_cleanup; | |
3547 | size_t buf_alloc, buf_pos; | |
3548 | gdb_byte *buf; | |
3549 | LONGEST n; | |
3550 | int fd; | |
3551 | int target_errno; | |
3552 | ||
3553 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3554 | if (fd == -1) | |
3555 | return -1; | |
3556 | ||
3557 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3558 | ||
3559 | /* Start by reading up to 4K at a time. The target will throttle | |
3560 | this number down if necessary. */ | |
3561 | buf_alloc = 4096; | |
3562 | buf = xmalloc (buf_alloc); | |
3563 | buf_pos = 0; | |
3564 | while (1) | |
3565 | { | |
3566 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3567 | buf_alloc - buf_pos - padding, buf_pos, | |
3568 | &target_errno); | |
3569 | if (n < 0) | |
3570 | { | |
3571 | /* An error occurred. */ | |
3572 | do_cleanups (close_cleanup); | |
3573 | xfree (buf); | |
3574 | return -1; | |
3575 | } | |
3576 | else if (n == 0) | |
3577 | { | |
3578 | /* Read all there was. */ | |
3579 | do_cleanups (close_cleanup); | |
3580 | if (buf_pos == 0) | |
3581 | xfree (buf); | |
3582 | else | |
3583 | *buf_p = buf; | |
3584 | return buf_pos; | |
3585 | } | |
3586 | ||
3587 | buf_pos += n; | |
3588 | ||
3589 | /* If the buffer is filling up, expand it. */ | |
3590 | if (buf_alloc < buf_pos * 2) | |
3591 | { | |
3592 | buf_alloc *= 2; | |
3593 | buf = xrealloc (buf, buf_alloc); | |
3594 | } | |
3595 | ||
3596 | QUIT; | |
3597 | } | |
3598 | } | |
3599 | ||
3600 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3601 | the size of the transferred data. See the declaration in "target.h" | |
3602 | function for more information about the return value. */ | |
3603 | ||
3604 | LONGEST | |
3605 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3606 | { | |
3607 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3608 | } | |
3609 | ||
3610 | /* Read target file FILENAME. The result is NUL-terminated and | |
3611 | returned as a string, allocated using xmalloc. If an error occurs | |
3612 | or the transfer is unsupported, NULL is returned. Empty objects | |
3613 | are returned as allocated but empty strings. A warning is issued | |
3614 | if the result contains any embedded NUL bytes. */ | |
3615 | ||
3616 | char * | |
3617 | target_fileio_read_stralloc (const char *filename) | |
3618 | { | |
39086a0e PA |
3619 | gdb_byte *buffer; |
3620 | char *bufstr; | |
7313baad UW |
3621 | LONGEST i, transferred; |
3622 | ||
39086a0e PA |
3623 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3624 | bufstr = (char *) buffer; | |
7313baad UW |
3625 | |
3626 | if (transferred < 0) | |
3627 | return NULL; | |
3628 | ||
3629 | if (transferred == 0) | |
3630 | return xstrdup (""); | |
3631 | ||
39086a0e | 3632 | bufstr[transferred] = 0; |
7313baad UW |
3633 | |
3634 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3635 | for (i = strlen (bufstr); i < transferred; i++) |
3636 | if (bufstr[i] != 0) | |
7313baad UW |
3637 | { |
3638 | warning (_("target file %s " | |
3639 | "contained unexpected null characters"), | |
3640 | filename); | |
3641 | break; | |
3642 | } | |
3643 | ||
39086a0e | 3644 | return bufstr; |
7313baad UW |
3645 | } |
3646 | ||
3647 | ||
e0d24f8d | 3648 | static int |
31568a15 TT |
3649 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3650 | CORE_ADDR addr, int len) | |
e0d24f8d | 3651 | { |
f5656ead | 3652 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3653 | } |
3654 | ||
5009afc5 AS |
3655 | static int |
3656 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3657 | CORE_ADDR addr, | |
3658 | CORE_ADDR start, int length) | |
3659 | { | |
3660 | return addr >= start && addr < start + length; | |
3661 | } | |
3662 | ||
c2250ad1 UW |
3663 | static struct gdbarch * |
3664 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3665 | { | |
f5656ead | 3666 | return target_gdbarch (); |
c2250ad1 UW |
3667 | } |
3668 | ||
c906108c | 3669 | static int |
fba45db2 | 3670 | return_zero (void) |
c906108c SS |
3671 | { |
3672 | return 0; | |
3673 | } | |
3674 | ||
3675 | static int | |
fba45db2 | 3676 | return_one (void) |
c906108c SS |
3677 | { |
3678 | return 1; | |
3679 | } | |
3680 | ||
ccaa32c7 GS |
3681 | static int |
3682 | return_minus_one (void) | |
3683 | { | |
3684 | return -1; | |
3685 | } | |
3686 | ||
1b67eb02 AS |
3687 | static void * |
3688 | return_null (void) | |
3689 | { | |
3690 | return 0; | |
3691 | } | |
3692 | ||
ed9a39eb JM |
3693 | /* |
3694 | * Find the next target down the stack from the specified target. | |
3695 | */ | |
3696 | ||
3697 | struct target_ops * | |
fba45db2 | 3698 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3699 | { |
258b763a | 3700 | return t->beneath; |
ed9a39eb JM |
3701 | } |
3702 | ||
8b06beed TT |
3703 | /* See target.h. */ |
3704 | ||
3705 | struct target_ops * | |
3706 | find_target_at (enum strata stratum) | |
3707 | { | |
3708 | struct target_ops *t; | |
3709 | ||
3710 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3711 | if (t->to_stratum == stratum) | |
3712 | return t; | |
3713 | ||
3714 | return NULL; | |
3715 | } | |
3716 | ||
c906108c SS |
3717 | \f |
3718 | /* The inferior process has died. Long live the inferior! */ | |
3719 | ||
3720 | void | |
fba45db2 | 3721 | generic_mourn_inferior (void) |
c906108c | 3722 | { |
7f9f62ba | 3723 | ptid_t ptid; |
c906108c | 3724 | |
7f9f62ba | 3725 | ptid = inferior_ptid; |
39f77062 | 3726 | inferior_ptid = null_ptid; |
7f9f62ba | 3727 | |
f59f708a PA |
3728 | /* Mark breakpoints uninserted in case something tries to delete a |
3729 | breakpoint while we delete the inferior's threads (which would | |
3730 | fail, since the inferior is long gone). */ | |
3731 | mark_breakpoints_out (); | |
3732 | ||
7f9f62ba PA |
3733 | if (!ptid_equal (ptid, null_ptid)) |
3734 | { | |
3735 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3736 | exit_inferior (pid); |
7f9f62ba PA |
3737 | } |
3738 | ||
f59f708a PA |
3739 | /* Note this wipes step-resume breakpoints, so needs to be done |
3740 | after exit_inferior, which ends up referencing the step-resume | |
3741 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3742 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3743 | |
c906108c SS |
3744 | registers_changed (); |
3745 | ||
c906108c SS |
3746 | reopen_exec_file (); |
3747 | reinit_frame_cache (); | |
3748 | ||
9a4105ab AC |
3749 | if (deprecated_detach_hook) |
3750 | deprecated_detach_hook (); | |
c906108c SS |
3751 | } |
3752 | \f | |
fd0a2a6f MK |
3753 | /* Convert a normal process ID to a string. Returns the string in a |
3754 | static buffer. */ | |
c906108c SS |
3755 | |
3756 | char * | |
39f77062 | 3757 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3758 | { |
fd0a2a6f | 3759 | static char buf[32]; |
c906108c | 3760 | |
5fff8fc0 | 3761 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3762 | return buf; |
3763 | } | |
3764 | ||
2c0b251b | 3765 | static char * |
117de6a9 PA |
3766 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3767 | { | |
3768 | return normal_pid_to_str (ptid); | |
3769 | } | |
3770 | ||
9b4eba8e HZ |
3771 | /* Error-catcher for target_find_memory_regions. */ |
3772 | static int | |
2e73927c TT |
3773 | dummy_find_memory_regions (struct target_ops *self, |
3774 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3775 | { |
9b4eba8e | 3776 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3777 | return 0; |
3778 | } | |
3779 | ||
9b4eba8e HZ |
3780 | /* Error-catcher for target_make_corefile_notes. */ |
3781 | static char * | |
fc6691b2 TT |
3782 | dummy_make_corefile_notes (struct target_ops *self, |
3783 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3784 | { |
9b4eba8e | 3785 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3786 | return NULL; |
3787 | } | |
3788 | ||
6b04bdb7 MS |
3789 | /* Error-catcher for target_get_bookmark. */ |
3790 | static gdb_byte * | |
dd0e2830 | 3791 | dummy_get_bookmark (struct target_ops *self, char *ignore1, int ignore2) |
6b04bdb7 MS |
3792 | { |
3793 | tcomplain (); | |
3794 | return NULL; | |
3795 | } | |
3796 | ||
3797 | /* Error-catcher for target_goto_bookmark. */ | |
3798 | static void | |
3c80fb48 | 3799 | dummy_goto_bookmark (struct target_ops *self, gdb_byte *ignore, int from_tty) |
6b04bdb7 MS |
3800 | { |
3801 | tcomplain (); | |
3802 | } | |
3803 | ||
c906108c SS |
3804 | /* Set up the handful of non-empty slots needed by the dummy target |
3805 | vector. */ | |
3806 | ||
3807 | static void | |
fba45db2 | 3808 | init_dummy_target (void) |
c906108c SS |
3809 | { |
3810 | dummy_target.to_shortname = "None"; | |
3811 | dummy_target.to_longname = "None"; | |
3812 | dummy_target.to_doc = ""; | |
3813 | dummy_target.to_attach = find_default_attach; | |
136d6dae | 3814 | dummy_target.to_detach = |
52554a0e | 3815 | (void (*)(struct target_ops *, const char *, int))target_ignore; |
c906108c | 3816 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3817 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3818 | dummy_target.to_supports_disable_randomization |
3819 | = find_default_supports_disable_randomization; | |
117de6a9 | 3820 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3821 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3822 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3823 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3824 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3825 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
c35b1492 PA |
3826 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3827 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3828 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3829 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3830 | dummy_target.to_has_execution |
3831 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3832 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3833 | |
3834 | install_dummy_methods (&dummy_target); | |
c906108c | 3835 | } |
c906108c | 3836 | \f |
c906108c | 3837 | static void |
fba45db2 | 3838 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3839 | { |
3840 | debug_target.to_open (args, from_tty); | |
3841 | ||
96baa820 | 3842 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3843 | } |
3844 | ||
f1c07ab0 | 3845 | void |
460014f5 | 3846 | target_close (struct target_ops *targ) |
f1c07ab0 | 3847 | { |
7fdc1521 TT |
3848 | gdb_assert (!target_is_pushed (targ)); |
3849 | ||
f1c07ab0 | 3850 | if (targ->to_xclose != NULL) |
460014f5 | 3851 | targ->to_xclose (targ); |
f1c07ab0 | 3852 | else if (targ->to_close != NULL) |
de90e03d | 3853 | targ->to_close (targ); |
947b8855 PA |
3854 | |
3855 | if (targetdebug) | |
460014f5 | 3856 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3857 | } |
3858 | ||
136d6dae VP |
3859 | void |
3860 | target_attach (char *args, int from_tty) | |
3861 | { | |
3862 | struct target_ops *t; | |
5d502164 | 3863 | |
136d6dae VP |
3864 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3865 | { | |
3866 | if (t->to_attach != NULL) | |
3867 | { | |
3868 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3869 | if (targetdebug) |
3870 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3871 | args, from_tty); | |
136d6dae VP |
3872 | return; |
3873 | } | |
3874 | } | |
3875 | ||
3876 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3877 | _("could not find a target to attach")); |
136d6dae VP |
3878 | } |
3879 | ||
28439f5e PA |
3880 | int |
3881 | target_thread_alive (ptid_t ptid) | |
c906108c | 3882 | { |
28439f5e | 3883 | struct target_ops *t; |
5d502164 | 3884 | |
28439f5e PA |
3885 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3886 | { | |
3887 | if (t->to_thread_alive != NULL) | |
3888 | { | |
3889 | int retval; | |
c906108c | 3890 | |
28439f5e PA |
3891 | retval = t->to_thread_alive (t, ptid); |
3892 | if (targetdebug) | |
3893 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3894 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3895 | |
3896 | return retval; | |
3897 | } | |
3898 | } | |
3899 | ||
3900 | return 0; | |
3901 | } | |
3902 | ||
3903 | void | |
3904 | target_find_new_threads (void) | |
3905 | { | |
3906 | struct target_ops *t; | |
5d502164 | 3907 | |
28439f5e PA |
3908 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3909 | { | |
3910 | if (t->to_find_new_threads != NULL) | |
3911 | { | |
3912 | t->to_find_new_threads (t); | |
3913 | if (targetdebug) | |
3914 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3915 | ||
3916 | return; | |
3917 | } | |
3918 | } | |
c906108c SS |
3919 | } |
3920 | ||
d914c394 SS |
3921 | void |
3922 | target_stop (ptid_t ptid) | |
3923 | { | |
3924 | if (!may_stop) | |
3925 | { | |
3926 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3927 | return; | |
3928 | } | |
3929 | ||
1eab8a48 | 3930 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3931 | } |
3932 | ||
c906108c | 3933 | static void |
f045800c | 3934 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3935 | { |
f045800c | 3936 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3937 | |
28439f5e | 3938 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3939 | } |
3940 | ||
09826ec5 PA |
3941 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3942 | result. The LIST incoming argument is released. */ | |
3943 | ||
3944 | static char * | |
3945 | str_comma_list_concat_elem (char *list, const char *elem) | |
3946 | { | |
3947 | if (list == NULL) | |
3948 | return xstrdup (elem); | |
3949 | else | |
3950 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3951 | } | |
3952 | ||
3953 | /* Helper for target_options_to_string. If OPT is present in | |
3954 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3955 | Returns the new resulting string. OPT is removed from | |
3956 | TARGET_OPTIONS. */ | |
3957 | ||
3958 | static char * | |
3959 | do_option (int *target_options, char *ret, | |
3960 | int opt, char *opt_str) | |
3961 | { | |
3962 | if ((*target_options & opt) != 0) | |
3963 | { | |
3964 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3965 | *target_options &= ~opt; | |
3966 | } | |
3967 | ||
3968 | return ret; | |
3969 | } | |
3970 | ||
3971 | char * | |
3972 | target_options_to_string (int target_options) | |
3973 | { | |
3974 | char *ret = NULL; | |
3975 | ||
3976 | #define DO_TARG_OPTION(OPT) \ | |
3977 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3978 | ||
3979 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3980 | ||
3981 | if (target_options != 0) | |
3982 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3983 | ||
3984 | if (ret == NULL) | |
3985 | ret = xstrdup (""); | |
3986 | return ret; | |
3987 | } | |
3988 | ||
bf0c5130 | 3989 | static void |
56be3814 UW |
3990 | debug_print_register (const char * func, |
3991 | struct regcache *regcache, int regno) | |
bf0c5130 | 3992 | { |
f8d29908 | 3993 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3994 | |
bf0c5130 | 3995 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3996 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3997 | && gdbarch_register_name (gdbarch, regno) != NULL |
3998 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3999 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
4000 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
4001 | else |
4002 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 4003 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 4004 | { |
e17a4113 | 4005 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 4006 | int i, size = register_size (gdbarch, regno); |
e362b510 | 4007 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 4008 | |
0ff58721 | 4009 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 4010 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 4011 | for (i = 0; i < size; i++) |
bf0c5130 AC |
4012 | { |
4013 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
4014 | } | |
81c4a259 | 4015 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 4016 | { |
e17a4113 | 4017 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 4018 | |
0b1553bc UW |
4019 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
4020 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
4021 | } |
4022 | } | |
4023 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4024 | } | |
4025 | ||
28439f5e PA |
4026 | void |
4027 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 4028 | { |
28439f5e | 4029 | struct target_ops *t; |
5d502164 | 4030 | |
28439f5e PA |
4031 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
4032 | { | |
4033 | if (t->to_fetch_registers != NULL) | |
4034 | { | |
4035 | t->to_fetch_registers (t, regcache, regno); | |
4036 | if (targetdebug) | |
4037 | debug_print_register ("target_fetch_registers", regcache, regno); | |
4038 | return; | |
4039 | } | |
4040 | } | |
c906108c SS |
4041 | } |
4042 | ||
28439f5e PA |
4043 | void |
4044 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 4045 | { |
28439f5e | 4046 | struct target_ops *t; |
5d502164 | 4047 | |
d914c394 SS |
4048 | if (!may_write_registers) |
4049 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
4050 | ||
6b84065d TT |
4051 | current_target.to_store_registers (¤t_target, regcache, regno); |
4052 | if (targetdebug) | |
28439f5e | 4053 | { |
6b84065d | 4054 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 4055 | } |
c906108c SS |
4056 | } |
4057 | ||
dc146f7c VP |
4058 | int |
4059 | target_core_of_thread (ptid_t ptid) | |
4060 | { | |
4061 | struct target_ops *t; | |
4062 | ||
4063 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4064 | { | |
4065 | if (t->to_core_of_thread != NULL) | |
4066 | { | |
4067 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 4068 | |
dc146f7c | 4069 | if (targetdebug) |
3e43a32a MS |
4070 | fprintf_unfiltered (gdb_stdlog, |
4071 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 4072 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
4073 | return retval; |
4074 | } | |
4075 | } | |
4076 | ||
4077 | return -1; | |
4078 | } | |
4079 | ||
4a5e7a5b PA |
4080 | int |
4081 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4082 | { | |
4083 | struct target_ops *t; | |
4084 | ||
4085 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4086 | { | |
4087 | if (t->to_verify_memory != NULL) | |
4088 | { | |
4089 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4090 | |
4a5e7a5b | 4091 | if (targetdebug) |
3e43a32a MS |
4092 | fprintf_unfiltered (gdb_stdlog, |
4093 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4094 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4095 | pulongest (size), |
4096 | retval); | |
4097 | return retval; | |
4098 | } | |
4099 | } | |
4100 | ||
4101 | tcomplain (); | |
4102 | } | |
4103 | ||
9c06b0b4 TJB |
4104 | /* The documentation for this function is in its prototype declaration in |
4105 | target.h. */ | |
4106 | ||
4107 | int | |
4108 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4109 | { | |
4110 | struct target_ops *t; | |
4111 | ||
4112 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4113 | if (t->to_insert_mask_watchpoint != NULL) | |
4114 | { | |
4115 | int ret; | |
4116 | ||
4117 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4118 | ||
4119 | if (targetdebug) | |
4120 | fprintf_unfiltered (gdb_stdlog, "\ | |
4121 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4122 | core_addr_to_string (addr), | |
4123 | core_addr_to_string (mask), rw, ret); | |
4124 | ||
4125 | return ret; | |
4126 | } | |
4127 | ||
4128 | return 1; | |
4129 | } | |
4130 | ||
4131 | /* The documentation for this function is in its prototype declaration in | |
4132 | target.h. */ | |
4133 | ||
4134 | int | |
4135 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4136 | { | |
4137 | struct target_ops *t; | |
4138 | ||
4139 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4140 | if (t->to_remove_mask_watchpoint != NULL) | |
4141 | { | |
4142 | int ret; | |
4143 | ||
4144 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4145 | ||
4146 | if (targetdebug) | |
4147 | fprintf_unfiltered (gdb_stdlog, "\ | |
4148 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4149 | core_addr_to_string (addr), | |
4150 | core_addr_to_string (mask), rw, ret); | |
4151 | ||
4152 | return ret; | |
4153 | } | |
4154 | ||
4155 | return 1; | |
4156 | } | |
4157 | ||
4158 | /* The documentation for this function is in its prototype declaration | |
4159 | in target.h. */ | |
4160 | ||
4161 | int | |
4162 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4163 | { | |
4164 | struct target_ops *t; | |
4165 | ||
4166 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4167 | if (t->to_masked_watch_num_registers != NULL) | |
4168 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4169 | ||
4170 | return -1; | |
4171 | } | |
4172 | ||
f1310107 TJB |
4173 | /* The documentation for this function is in its prototype declaration |
4174 | in target.h. */ | |
4175 | ||
4176 | int | |
4177 | target_ranged_break_num_registers (void) | |
4178 | { | |
4179 | struct target_ops *t; | |
4180 | ||
4181 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4182 | if (t->to_ranged_break_num_registers != NULL) | |
4183 | return t->to_ranged_break_num_registers (t); | |
4184 | ||
4185 | return -1; | |
4186 | } | |
4187 | ||
02d27625 MM |
4188 | /* See target.h. */ |
4189 | ||
02d27625 MM |
4190 | struct btrace_target_info * |
4191 | target_enable_btrace (ptid_t ptid) | |
4192 | { | |
4193 | struct target_ops *t; | |
4194 | ||
4195 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4196 | if (t->to_enable_btrace != NULL) | |
4197 | return t->to_enable_btrace (ptid); | |
4198 | ||
4199 | tcomplain (); | |
4200 | return NULL; | |
4201 | } | |
4202 | ||
4203 | /* See target.h. */ | |
4204 | ||
4205 | void | |
4206 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4207 | { | |
4208 | struct target_ops *t; | |
4209 | ||
4210 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4211 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 SDJ |
4212 | { |
4213 | t->to_disable_btrace (btinfo); | |
4214 | return; | |
4215 | } | |
02d27625 MM |
4216 | |
4217 | tcomplain (); | |
4218 | } | |
4219 | ||
4220 | /* See target.h. */ | |
4221 | ||
4222 | void | |
4223 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4224 | { | |
4225 | struct target_ops *t; | |
4226 | ||
4227 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4228 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 SDJ |
4229 | { |
4230 | t->to_teardown_btrace (btinfo); | |
4231 | return; | |
4232 | } | |
02d27625 MM |
4233 | |
4234 | tcomplain (); | |
4235 | } | |
4236 | ||
4237 | /* See target.h. */ | |
4238 | ||
969c39fb MM |
4239 | enum btrace_error |
4240 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
4241 | struct btrace_target_info *btinfo, | |
02d27625 MM |
4242 | enum btrace_read_type type) |
4243 | { | |
4244 | struct target_ops *t; | |
4245 | ||
4246 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4247 | if (t->to_read_btrace != NULL) | |
969c39fb | 4248 | return t->to_read_btrace (btrace, btinfo, type); |
02d27625 MM |
4249 | |
4250 | tcomplain (); | |
969c39fb | 4251 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
4252 | } |
4253 | ||
d02ed0bb MM |
4254 | /* See target.h. */ |
4255 | ||
7c1687a9 MM |
4256 | void |
4257 | target_stop_recording (void) | |
4258 | { | |
4259 | struct target_ops *t; | |
4260 | ||
4261 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4262 | if (t->to_stop_recording != NULL) | |
4263 | { | |
4264 | t->to_stop_recording (); | |
4265 | return; | |
4266 | } | |
4267 | ||
4268 | /* This is optional. */ | |
4269 | } | |
4270 | ||
4271 | /* See target.h. */ | |
4272 | ||
d02ed0bb MM |
4273 | void |
4274 | target_info_record (void) | |
4275 | { | |
4276 | struct target_ops *t; | |
4277 | ||
4278 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4279 | if (t->to_info_record != NULL) | |
4280 | { | |
4281 | t->to_info_record (); | |
4282 | return; | |
4283 | } | |
4284 | ||
4285 | tcomplain (); | |
4286 | } | |
4287 | ||
4288 | /* See target.h. */ | |
4289 | ||
4290 | void | |
85e1311a | 4291 | target_save_record (const char *filename) |
d02ed0bb MM |
4292 | { |
4293 | struct target_ops *t; | |
4294 | ||
4295 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4296 | if (t->to_save_record != NULL) | |
4297 | { | |
4298 | t->to_save_record (filename); | |
4299 | return; | |
4300 | } | |
4301 | ||
4302 | tcomplain (); | |
4303 | } | |
4304 | ||
4305 | /* See target.h. */ | |
4306 | ||
4307 | int | |
4308 | target_supports_delete_record (void) | |
4309 | { | |
4310 | struct target_ops *t; | |
4311 | ||
4312 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4313 | if (t->to_delete_record != NULL) | |
4314 | return 1; | |
4315 | ||
4316 | return 0; | |
4317 | } | |
4318 | ||
4319 | /* See target.h. */ | |
4320 | ||
4321 | void | |
4322 | target_delete_record (void) | |
4323 | { | |
4324 | struct target_ops *t; | |
4325 | ||
4326 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4327 | if (t->to_delete_record != NULL) | |
4328 | { | |
4329 | t->to_delete_record (); | |
4330 | return; | |
4331 | } | |
4332 | ||
4333 | tcomplain (); | |
4334 | } | |
4335 | ||
4336 | /* See target.h. */ | |
4337 | ||
4338 | int | |
4339 | target_record_is_replaying (void) | |
4340 | { | |
4341 | struct target_ops *t; | |
4342 | ||
4343 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4344 | if (t->to_record_is_replaying != NULL) | |
4345 | return t->to_record_is_replaying (); | |
4346 | ||
4347 | return 0; | |
4348 | } | |
4349 | ||
4350 | /* See target.h. */ | |
4351 | ||
4352 | void | |
4353 | target_goto_record_begin (void) | |
4354 | { | |
4355 | struct target_ops *t; | |
4356 | ||
4357 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4358 | if (t->to_goto_record_begin != NULL) | |
4359 | { | |
4360 | t->to_goto_record_begin (); | |
4361 | return; | |
4362 | } | |
4363 | ||
4364 | tcomplain (); | |
4365 | } | |
4366 | ||
4367 | /* See target.h. */ | |
4368 | ||
4369 | void | |
4370 | target_goto_record_end (void) | |
4371 | { | |
4372 | struct target_ops *t; | |
4373 | ||
4374 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4375 | if (t->to_goto_record_end != NULL) | |
4376 | { | |
4377 | t->to_goto_record_end (); | |
4378 | return; | |
4379 | } | |
4380 | ||
4381 | tcomplain (); | |
4382 | } | |
4383 | ||
4384 | /* See target.h. */ | |
4385 | ||
4386 | void | |
4387 | target_goto_record (ULONGEST insn) | |
4388 | { | |
4389 | struct target_ops *t; | |
4390 | ||
4391 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4392 | if (t->to_goto_record != NULL) | |
4393 | { | |
4394 | t->to_goto_record (insn); | |
4395 | return; | |
4396 | } | |
4397 | ||
4398 | tcomplain (); | |
4399 | } | |
4400 | ||
67c86d06 MM |
4401 | /* See target.h. */ |
4402 | ||
4403 | void | |
4404 | target_insn_history (int size, int flags) | |
4405 | { | |
4406 | struct target_ops *t; | |
4407 | ||
4408 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4409 | if (t->to_insn_history != NULL) | |
4410 | { | |
4411 | t->to_insn_history (size, flags); | |
4412 | return; | |
4413 | } | |
4414 | ||
4415 | tcomplain (); | |
4416 | } | |
4417 | ||
4418 | /* See target.h. */ | |
4419 | ||
4420 | void | |
4421 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4422 | { | |
4423 | struct target_ops *t; | |
4424 | ||
4425 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4426 | if (t->to_insn_history_from != NULL) | |
4427 | { | |
4428 | t->to_insn_history_from (from, size, flags); | |
4429 | return; | |
4430 | } | |
4431 | ||
4432 | tcomplain (); | |
4433 | } | |
4434 | ||
4435 | /* See target.h. */ | |
4436 | ||
4437 | void | |
4438 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4439 | { | |
4440 | struct target_ops *t; | |
4441 | ||
4442 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4443 | if (t->to_insn_history_range != NULL) | |
4444 | { | |
4445 | t->to_insn_history_range (begin, end, flags); | |
4446 | return; | |
4447 | } | |
4448 | ||
4449 | tcomplain (); | |
4450 | } | |
4451 | ||
15984c13 MM |
4452 | /* See target.h. */ |
4453 | ||
4454 | void | |
4455 | target_call_history (int size, int flags) | |
4456 | { | |
4457 | struct target_ops *t; | |
4458 | ||
4459 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4460 | if (t->to_call_history != NULL) | |
4461 | { | |
4462 | t->to_call_history (size, flags); | |
4463 | return; | |
4464 | } | |
4465 | ||
4466 | tcomplain (); | |
4467 | } | |
4468 | ||
4469 | /* See target.h. */ | |
4470 | ||
4471 | void | |
4472 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4473 | { | |
4474 | struct target_ops *t; | |
4475 | ||
4476 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4477 | if (t->to_call_history_from != NULL) | |
4478 | { | |
4479 | t->to_call_history_from (begin, size, flags); | |
4480 | return; | |
4481 | } | |
4482 | ||
4483 | tcomplain (); | |
4484 | } | |
4485 | ||
4486 | /* See target.h. */ | |
4487 | ||
4488 | void | |
4489 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4490 | { | |
4491 | struct target_ops *t; | |
4492 | ||
4493 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4494 | if (t->to_call_history_range != NULL) | |
4495 | { | |
4496 | t->to_call_history_range (begin, end, flags); | |
4497 | return; | |
4498 | } | |
4499 | ||
4500 | tcomplain (); | |
4501 | } | |
4502 | ||
c906108c | 4503 | static void |
f32dbf8c | 4504 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4505 | { |
f32dbf8c | 4506 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4507 | |
96baa820 | 4508 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4509 | } |
4510 | ||
ea001bdc MM |
4511 | /* See target.h. */ |
4512 | ||
4513 | const struct frame_unwind * | |
4514 | target_get_unwinder (void) | |
4515 | { | |
4516 | struct target_ops *t; | |
4517 | ||
4518 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4519 | if (t->to_get_unwinder != NULL) | |
4520 | return t->to_get_unwinder; | |
4521 | ||
4522 | return NULL; | |
4523 | } | |
4524 | ||
4525 | /* See target.h. */ | |
4526 | ||
4527 | const struct frame_unwind * | |
4528 | target_get_tailcall_unwinder (void) | |
4529 | { | |
4530 | struct target_ops *t; | |
4531 | ||
4532 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4533 | if (t->to_get_tailcall_unwinder != NULL) | |
4534 | return t->to_get_tailcall_unwinder; | |
4535 | ||
4536 | return NULL; | |
4537 | } | |
4538 | ||
118e6252 MM |
4539 | /* See target.h. */ |
4540 | ||
4541 | CORE_ADDR | |
4542 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4543 | struct gdbarch *gdbarch) | |
4544 | { | |
4545 | for (; ops != NULL; ops = ops->beneath) | |
4546 | if (ops->to_decr_pc_after_break != NULL) | |
4547 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4548 | ||
4549 | return gdbarch_decr_pc_after_break (gdbarch); | |
4550 | } | |
4551 | ||
4552 | /* See target.h. */ | |
4553 | ||
4554 | CORE_ADDR | |
4555 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4556 | { | |
4557 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4558 | } | |
4559 | ||
c906108c | 4560 | static int |
961cb7b5 | 4561 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4562 | int write, struct mem_attrib *attrib, |
4563 | struct target_ops *target) | |
c906108c SS |
4564 | { |
4565 | int retval; | |
4566 | ||
c8e73a31 AC |
4567 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4568 | attrib, target); | |
c906108c | 4569 | |
96baa820 | 4570 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4571 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4572 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4573 | write ? "write" : "read", retval); |
c906108c | 4574 | |
c906108c SS |
4575 | if (retval > 0) |
4576 | { | |
4577 | int i; | |
4578 | ||
96baa820 | 4579 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4580 | for (i = 0; i < retval; i++) |
4581 | { | |
53b71562 | 4582 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4583 | { |
4584 | if (targetdebug < 2 && i > 0) | |
4585 | { | |
4586 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4587 | break; | |
4588 | } | |
4589 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4590 | } | |
2bc416ba | 4591 | |
96baa820 | 4592 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4593 | } |
4594 | } | |
4595 | ||
96baa820 | 4596 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4597 | |
4598 | return retval; | |
4599 | } | |
4600 | ||
4601 | static void | |
fba45db2 | 4602 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4603 | { |
4604 | debug_target.to_files_info (target); | |
4605 | ||
96baa820 | 4606 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4607 | } |
4608 | ||
4609 | static int | |
3db08215 | 4610 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4611 | struct bp_target_info *bp_tgt) |
c906108c SS |
4612 | { |
4613 | int retval; | |
4614 | ||
6b84065d | 4615 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4616 | |
96baa820 | 4617 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4618 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4619 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4620 | (unsigned long) retval); |
c906108c SS |
4621 | return retval; |
4622 | } | |
4623 | ||
4624 | static int | |
3db08215 | 4625 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4626 | struct bp_target_info *bp_tgt) |
c906108c SS |
4627 | { |
4628 | int retval; | |
4629 | ||
6b84065d | 4630 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4631 | |
96baa820 | 4632 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4633 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4634 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4635 | (unsigned long) retval); |
c906108c SS |
4636 | return retval; |
4637 | } | |
4638 | ||
ccaa32c7 | 4639 | static int |
5461485a TT |
4640 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4641 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4642 | { |
4643 | int retval; | |
4644 | ||
5461485a TT |
4645 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4646 | type, cnt, from_tty); | |
ccaa32c7 GS |
4647 | |
4648 | fprintf_unfiltered (gdb_stdlog, | |
4649 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4650 | (unsigned long) type, | |
4651 | (unsigned long) cnt, | |
4652 | (unsigned long) from_tty, | |
4653 | (unsigned long) retval); | |
4654 | return retval; | |
4655 | } | |
4656 | ||
e0d24f8d | 4657 | static int |
31568a15 TT |
4658 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4659 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4660 | { |
4661 | CORE_ADDR retval; | |
4662 | ||
31568a15 TT |
4663 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4664 | addr, len); | |
e0d24f8d WZ |
4665 | |
4666 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4667 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4668 | core_addr_to_string (addr), (unsigned long) len, | |
4669 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4670 | return retval; |
4671 | } | |
4672 | ||
0cf6dd15 | 4673 | static int |
c3a5ff89 TT |
4674 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4675 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4676 | struct expression *cond) |
4677 | { | |
4678 | int retval; | |
4679 | ||
c3a5ff89 TT |
4680 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4681 | addr, len, | |
3e43a32a | 4682 | rw, cond); |
0cf6dd15 TJB |
4683 | |
4684 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4685 | "target_can_accel_watchpoint_condition " |
4686 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4687 | core_addr_to_string (addr), len, rw, |
4688 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4689 | return retval; |
4690 | } | |
4691 | ||
ccaa32c7 | 4692 | static int |
6a109b6b | 4693 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4694 | { |
4695 | int retval; | |
4696 | ||
6a109b6b | 4697 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4698 | |
4699 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4700 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4701 | (unsigned long) retval); |
4702 | return retval; | |
4703 | } | |
4704 | ||
4aa7a7f5 JJ |
4705 | static int |
4706 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4707 | { |
4aa7a7f5 | 4708 | int retval; |
ccaa32c7 | 4709 | |
4aa7a7f5 | 4710 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4711 | |
4712 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4713 | "target_stopped_data_address ([%s]) = %ld\n", |
4714 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4715 | (unsigned long)retval); |
ccaa32c7 GS |
4716 | return retval; |
4717 | } | |
4718 | ||
5009afc5 AS |
4719 | static int |
4720 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4721 | CORE_ADDR addr, | |
4722 | CORE_ADDR start, int length) | |
4723 | { | |
4724 | int retval; | |
4725 | ||
4726 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4727 | start, length); | |
4728 | ||
4729 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4730 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4731 | core_addr_to_string (addr), core_addr_to_string (start), | |
4732 | length, retval); | |
5009afc5 AS |
4733 | return retval; |
4734 | } | |
4735 | ||
ccaa32c7 | 4736 | static int |
23a26771 TT |
4737 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4738 | struct gdbarch *gdbarch, | |
a6d9a66e | 4739 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4740 | { |
4741 | int retval; | |
4742 | ||
23a26771 TT |
4743 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4744 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4745 | |
4746 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4747 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4748 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4749 | (unsigned long) retval); |
4750 | return retval; | |
4751 | } | |
4752 | ||
4753 | static int | |
a64dc96c TT |
4754 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4755 | struct gdbarch *gdbarch, | |
a6d9a66e | 4756 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4757 | { |
4758 | int retval; | |
4759 | ||
a64dc96c TT |
4760 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4761 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4762 | |
4763 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4764 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4765 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4766 | (unsigned long) retval); |
4767 | return retval; | |
4768 | } | |
4769 | ||
4770 | static int | |
7bb99c53 TT |
4771 | debug_to_insert_watchpoint (struct target_ops *self, |
4772 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4773 | struct expression *cond) |
ccaa32c7 GS |
4774 | { |
4775 | int retval; | |
4776 | ||
7bb99c53 TT |
4777 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4778 | addr, len, type, cond); | |
ccaa32c7 GS |
4779 | |
4780 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4781 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4782 | core_addr_to_string (addr), len, type, | |
4783 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4784 | return retval; |
4785 | } | |
4786 | ||
4787 | static int | |
11b5219a TT |
4788 | debug_to_remove_watchpoint (struct target_ops *self, |
4789 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4790 | struct expression *cond) |
ccaa32c7 GS |
4791 | { |
4792 | int retval; | |
4793 | ||
11b5219a TT |
4794 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4795 | addr, len, type, cond); | |
ccaa32c7 GS |
4796 | |
4797 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4798 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4799 | core_addr_to_string (addr), len, type, | |
4800 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4801 | return retval; |
4802 | } | |
4803 | ||
c906108c | 4804 | static void |
c42bf286 | 4805 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4806 | { |
c42bf286 | 4807 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4808 | |
96baa820 | 4809 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4810 | } |
4811 | ||
4812 | static void | |
d2f640d4 | 4813 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4814 | { |
d2f640d4 | 4815 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4816 | |
96baa820 | 4817 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4818 | } |
4819 | ||
4820 | static void | |
2e1e1a19 | 4821 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4822 | { |
2e1e1a19 | 4823 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4824 | |
96baa820 | 4825 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4826 | } |
4827 | ||
4828 | static void | |
e3594fd1 | 4829 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4830 | { |
e3594fd1 | 4831 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4832 | |
96baa820 | 4833 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4834 | } |
4835 | ||
a790ad35 | 4836 | static void |
ae3bd431 | 4837 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4838 | { |
ae3bd431 | 4839 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4840 | |
4841 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4842 | } | |
4843 | ||
c906108c | 4844 | static void |
0a4f40a2 TT |
4845 | debug_to_terminal_info (struct target_ops *self, |
4846 | const char *arg, int from_tty) | |
c906108c | 4847 | { |
0a4f40a2 | 4848 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4849 | |
96baa820 | 4850 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4851 | from_tty); |
4852 | } | |
4853 | ||
c906108c | 4854 | static void |
71a9f134 | 4855 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4856 | { |
71a9f134 | 4857 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4858 | |
96baa820 | 4859 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4860 | } |
4861 | ||
c906108c | 4862 | static void |
2e97a79e | 4863 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4864 | { |
2e97a79e | 4865 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4866 | |
96baa820 | 4867 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4868 | ptid_get_pid (ptid)); |
c906108c SS |
4869 | } |
4870 | ||
77b06cd7 | 4871 | static int |
a863b201 | 4872 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4873 | { |
77b06cd7 TJB |
4874 | int retval; |
4875 | ||
a863b201 | 4876 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4877 | |
4878 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4879 | pid, retval); | |
c906108c | 4880 | |
77b06cd7 | 4881 | return retval; |
c906108c SS |
4882 | } |
4883 | ||
4884 | static int | |
973fc227 | 4885 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4886 | { |
c5aa993b | 4887 | int retval; |
c906108c | 4888 | |
973fc227 | 4889 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4890 | |
96baa820 | 4891 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4892 | pid, retval); |
c906108c SS |
4893 | |
4894 | return retval; | |
4895 | } | |
4896 | ||
77b06cd7 | 4897 | static int |
3ecc7da0 | 4898 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4899 | { |
77b06cd7 TJB |
4900 | int retval; |
4901 | ||
3ecc7da0 | 4902 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4903 | |
77b06cd7 TJB |
4904 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4905 | pid, retval); | |
4906 | ||
4907 | return retval; | |
c906108c SS |
4908 | } |
4909 | ||
4910 | static int | |
e98cf0cd | 4911 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4912 | { |
c5aa993b | 4913 | int retval; |
c906108c | 4914 | |
e98cf0cd | 4915 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4916 | |
96baa820 | 4917 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4918 | pid, retval); |
c906108c SS |
4919 | |
4920 | return retval; | |
4921 | } | |
4922 | ||
77b06cd7 | 4923 | static int |
ba025e51 | 4924 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4925 | { |
77b06cd7 TJB |
4926 | int retval; |
4927 | ||
ba025e51 | 4928 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4929 | |
77b06cd7 TJB |
4930 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4931 | pid, retval); | |
4932 | ||
4933 | return retval; | |
c906108c SS |
4934 | } |
4935 | ||
4936 | static int | |
758e29d2 | 4937 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4938 | { |
c5aa993b | 4939 | int retval; |
c906108c | 4940 | |
758e29d2 | 4941 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4942 | |
96baa820 | 4943 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4944 | pid, retval); |
c906108c SS |
4945 | |
4946 | return retval; | |
4947 | } | |
4948 | ||
c906108c | 4949 | static int |
d796e1d6 TT |
4950 | debug_to_has_exited (struct target_ops *self, |
4951 | int pid, int wait_status, int *exit_status) | |
c906108c | 4952 | { |
c5aa993b | 4953 | int has_exited; |
c906108c | 4954 | |
d796e1d6 TT |
4955 | has_exited = debug_target.to_has_exited (&debug_target, |
4956 | pid, wait_status, exit_status); | |
c906108c | 4957 | |
96baa820 | 4958 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4959 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4960 | |
4961 | return has_exited; | |
4962 | } | |
4963 | ||
c906108c | 4964 | static int |
da82bd6b | 4965 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4966 | { |
4967 | int retval; | |
4968 | ||
da82bd6b | 4969 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4970 | |
96baa820 | 4971 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4972 | |
4973 | return retval; | |
4974 | } | |
4975 | ||
c2250ad1 UW |
4976 | static struct gdbarch * |
4977 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4978 | { | |
4979 | struct gdbarch *retval; | |
4980 | ||
4981 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4982 | ||
3e43a32a MS |
4983 | fprintf_unfiltered (gdb_stdlog, |
4984 | "target_thread_architecture (%s) = %s [%s]\n", | |
4985 | target_pid_to_str (ptid), | |
4986 | host_address_to_string (retval), | |
c2250ad1 UW |
4987 | gdbarch_bfd_arch_info (retval)->printable_name); |
4988 | return retval; | |
4989 | } | |
4990 | ||
c906108c | 4991 | static void |
1eab8a48 | 4992 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4993 | { |
1eab8a48 | 4994 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 4995 | |
94cc34af PA |
4996 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4997 | target_pid_to_str (ptid)); | |
c906108c SS |
4998 | } |
4999 | ||
96baa820 | 5000 | static void |
1aac633b | 5001 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 5002 | struct ui_file *outbuf) |
96baa820 | 5003 | { |
1aac633b | 5004 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
5005 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
5006 | } | |
5007 | ||
c906108c | 5008 | static char * |
8dd27370 | 5009 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 5010 | { |
c5aa993b | 5011 | char *exec_file; |
c906108c | 5012 | |
8dd27370 | 5013 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 5014 | |
96baa820 | 5015 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 5016 | pid, exec_file); |
c906108c SS |
5017 | |
5018 | return exec_file; | |
5019 | } | |
5020 | ||
c906108c | 5021 | static void |
fba45db2 | 5022 | setup_target_debug (void) |
c906108c SS |
5023 | { |
5024 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
5025 | ||
5026 | current_target.to_open = debug_to_open; | |
c906108c | 5027 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 5028 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 5029 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
5030 | current_target.to_files_info = debug_to_files_info; |
5031 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
5032 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
5033 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
5034 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
5035 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
5036 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
5037 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
5038 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
5039 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
5040 | current_target.to_watchpoint_addr_within_range |
5041 | = debug_to_watchpoint_addr_within_range; | |
5042 | current_target.to_region_ok_for_hw_watchpoint | |
5043 | = debug_to_region_ok_for_hw_watchpoint; | |
5044 | current_target.to_can_accel_watchpoint_condition | |
5045 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
5046 | current_target.to_terminal_init = debug_to_terminal_init; |
5047 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
5048 | current_target.to_terminal_ours_for_output |
5049 | = debug_to_terminal_ours_for_output; | |
c906108c | 5050 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 5051 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 5052 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 5053 | current_target.to_load = debug_to_load; |
c906108c | 5054 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
5055 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
5056 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
5057 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
5058 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
5059 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
5060 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 5061 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 5062 | current_target.to_can_run = debug_to_can_run; |
c906108c | 5063 | current_target.to_stop = debug_to_stop; |
96baa820 | 5064 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 5065 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 5066 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 5067 | } |
c906108c | 5068 | \f |
c5aa993b JM |
5069 | |
5070 | static char targ_desc[] = | |
3e43a32a MS |
5071 | "Names of targets and files being debugged.\nShows the entire \ |
5072 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
5073 | core-file, and process, if any), as well as the symbol file name."; |
5074 | ||
96baa820 JM |
5075 | static void |
5076 | do_monitor_command (char *cmd, | |
5077 | int from_tty) | |
5078 | { | |
2b5fe715 | 5079 | if ((current_target.to_rcmd |
1aac633b | 5080 | == (void (*) (struct target_ops *, char *, struct ui_file *)) tcomplain) |
96baa820 | 5081 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 | 5082 | && (debug_target.to_rcmd |
1aac633b TT |
5083 | == (void (*) (struct target_ops *, |
5084 | char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 5085 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
5086 | target_rcmd (cmd, gdb_stdtarg); |
5087 | } | |
5088 | ||
87680a14 JB |
5089 | /* Print the name of each layers of our target stack. */ |
5090 | ||
5091 | static void | |
5092 | maintenance_print_target_stack (char *cmd, int from_tty) | |
5093 | { | |
5094 | struct target_ops *t; | |
5095 | ||
5096 | printf_filtered (_("The current target stack is:\n")); | |
5097 | ||
5098 | for (t = target_stack; t != NULL; t = t->beneath) | |
5099 | { | |
5100 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
5101 | } | |
5102 | } | |
5103 | ||
c6ebd6cf VP |
5104 | /* Controls if async mode is permitted. */ |
5105 | int target_async_permitted = 0; | |
5106 | ||
5107 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 5108 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
5109 | static int target_async_permitted_1 = 0; |
5110 | ||
5111 | static void | |
9401a810 PA |
5112 | set_target_async_command (char *args, int from_tty, |
5113 | struct cmd_list_element *c) | |
c6ebd6cf | 5114 | { |
c35b1492 | 5115 | if (have_live_inferiors ()) |
c6ebd6cf VP |
5116 | { |
5117 | target_async_permitted_1 = target_async_permitted; | |
5118 | error (_("Cannot change this setting while the inferior is running.")); | |
5119 | } | |
5120 | ||
5121 | target_async_permitted = target_async_permitted_1; | |
5122 | } | |
5123 | ||
5124 | static void | |
9401a810 PA |
5125 | show_target_async_command (struct ui_file *file, int from_tty, |
5126 | struct cmd_list_element *c, | |
5127 | const char *value) | |
c6ebd6cf | 5128 | { |
3e43a32a MS |
5129 | fprintf_filtered (file, |
5130 | _("Controlling the inferior in " | |
5131 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5132 | } |
5133 | ||
d914c394 SS |
5134 | /* Temporary copies of permission settings. */ |
5135 | ||
5136 | static int may_write_registers_1 = 1; | |
5137 | static int may_write_memory_1 = 1; | |
5138 | static int may_insert_breakpoints_1 = 1; | |
5139 | static int may_insert_tracepoints_1 = 1; | |
5140 | static int may_insert_fast_tracepoints_1 = 1; | |
5141 | static int may_stop_1 = 1; | |
5142 | ||
5143 | /* Make the user-set values match the real values again. */ | |
5144 | ||
5145 | void | |
5146 | update_target_permissions (void) | |
5147 | { | |
5148 | may_write_registers_1 = may_write_registers; | |
5149 | may_write_memory_1 = may_write_memory; | |
5150 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5151 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5152 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5153 | may_stop_1 = may_stop; | |
5154 | } | |
5155 | ||
5156 | /* The one function handles (most of) the permission flags in the same | |
5157 | way. */ | |
5158 | ||
5159 | static void | |
5160 | set_target_permissions (char *args, int from_tty, | |
5161 | struct cmd_list_element *c) | |
5162 | { | |
5163 | if (target_has_execution) | |
5164 | { | |
5165 | update_target_permissions (); | |
5166 | error (_("Cannot change this setting while the inferior is running.")); | |
5167 | } | |
5168 | ||
5169 | /* Make the real values match the user-changed values. */ | |
5170 | may_write_registers = may_write_registers_1; | |
5171 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5172 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5173 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5174 | may_stop = may_stop_1; | |
5175 | update_observer_mode (); | |
5176 | } | |
5177 | ||
5178 | /* Set memory write permission independently of observer mode. */ | |
5179 | ||
5180 | static void | |
5181 | set_write_memory_permission (char *args, int from_tty, | |
5182 | struct cmd_list_element *c) | |
5183 | { | |
5184 | /* Make the real values match the user-changed values. */ | |
5185 | may_write_memory = may_write_memory_1; | |
5186 | update_observer_mode (); | |
5187 | } | |
5188 | ||
5189 | ||
c906108c | 5190 | void |
fba45db2 | 5191 | initialize_targets (void) |
c906108c SS |
5192 | { |
5193 | init_dummy_target (); | |
5194 | push_target (&dummy_target); | |
5195 | ||
5196 | add_info ("target", target_info, targ_desc); | |
5197 | add_info ("files", target_info, targ_desc); | |
5198 | ||
ccce17b0 | 5199 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5200 | Set target debugging."), _("\ |
5201 | Show target debugging."), _("\ | |
333dabeb DJ |
5202 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5203 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5204 | command."), |
ccce17b0 YQ |
5205 | NULL, |
5206 | show_targetdebug, | |
5207 | &setdebuglist, &showdebuglist); | |
3a11626d | 5208 | |
2bc416ba | 5209 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5210 | &trust_readonly, _("\ |
5211 | Set mode for reading from readonly sections."), _("\ | |
5212 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5213 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5214 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5215 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5216 | NULL, |
920d2a44 | 5217 | show_trust_readonly, |
e707bbc2 | 5218 | &setlist, &showlist); |
96baa820 JM |
5219 | |
5220 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5221 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5222 | |
87680a14 JB |
5223 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5224 | _("Print the name of each layer of the internal target stack."), | |
5225 | &maintenanceprintlist); | |
5226 | ||
c6ebd6cf VP |
5227 | add_setshow_boolean_cmd ("target-async", no_class, |
5228 | &target_async_permitted_1, _("\ | |
5229 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5230 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5231 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5232 | set_target_async_command, |
5233 | show_target_async_command, | |
c6ebd6cf VP |
5234 | &setlist, |
5235 | &showlist); | |
5236 | ||
d914c394 SS |
5237 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5238 | &may_write_registers_1, _("\ | |
5239 | Set permission to write into registers."), _("\ | |
5240 | Show permission to write into registers."), _("\ | |
5241 | When this permission is on, GDB may write into the target's registers.\n\ | |
5242 | Otherwise, any sort of write attempt will result in an error."), | |
5243 | set_target_permissions, NULL, | |
5244 | &setlist, &showlist); | |
5245 | ||
5246 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5247 | &may_write_memory_1, _("\ | |
5248 | Set permission to write into target memory."), _("\ | |
5249 | Show permission to write into target memory."), _("\ | |
5250 | When this permission is on, GDB may write into the target's memory.\n\ | |
5251 | Otherwise, any sort of write attempt will result in an error."), | |
5252 | set_write_memory_permission, NULL, | |
5253 | &setlist, &showlist); | |
5254 | ||
5255 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5256 | &may_insert_breakpoints_1, _("\ | |
5257 | Set permission to insert breakpoints in the target."), _("\ | |
5258 | Show permission to insert breakpoints in the target."), _("\ | |
5259 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5260 | Otherwise, any sort of insertion attempt will result in an error."), | |
5261 | set_target_permissions, NULL, | |
5262 | &setlist, &showlist); | |
5263 | ||
5264 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5265 | &may_insert_tracepoints_1, _("\ | |
5266 | Set permission to insert tracepoints in the target."), _("\ | |
5267 | Show permission to insert tracepoints in the target."), _("\ | |
5268 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5269 | Otherwise, any sort of insertion attempt will result in an error."), | |
5270 | set_target_permissions, NULL, | |
5271 | &setlist, &showlist); | |
5272 | ||
5273 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5274 | &may_insert_fast_tracepoints_1, _("\ | |
5275 | Set permission to insert fast tracepoints in the target."), _("\ | |
5276 | Show permission to insert fast tracepoints in the target."), _("\ | |
5277 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5278 | Otherwise, any sort of insertion attempt will result in an error."), | |
5279 | set_target_permissions, NULL, | |
5280 | &setlist, &showlist); | |
5281 | ||
5282 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5283 | &may_stop_1, _("\ | |
5284 | Set permission to interrupt or signal the target."), _("\ | |
5285 | Show permission to interrupt or signal the target."), _("\ | |
5286 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5287 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5288 | set_target_permissions, NULL, | |
5289 | &setlist, &showlist); | |
c906108c | 5290 | } |