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 | 545 | static enum exec_direction_kind |
4c612759 | 546 | default_execution_direction (struct target_ops *self) |
32231432 PA |
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 | 842 | de_fault (to_supports_multi_process, |
86ce2668 | 843 | (int (*) (struct target_ops *)) |
8a305172 | 844 | return_zero); |
d248b706 | 845 | de_fault (to_supports_enable_disable_tracepoint, |
7d178d6a | 846 | (int (*) (struct target_ops *)) |
d248b706 | 847 | return_zero); |
3065dfb6 | 848 | de_fault (to_supports_string_tracing, |
6de37a3a | 849 | (int (*) (struct target_ops *)) |
3065dfb6 | 850 | return_zero); |
35b1e5cc | 851 | de_fault (to_trace_init, |
ecae04e1 | 852 | (void (*) (struct target_ops *)) |
35b1e5cc SS |
853 | tcomplain); |
854 | de_fault (to_download_tracepoint, | |
548f7808 | 855 | (void (*) (struct target_ops *, struct bp_location *)) |
35b1e5cc | 856 | tcomplain); |
1e4d1764 | 857 | de_fault (to_can_download_tracepoint, |
a52a8357 | 858 | (int (*) (struct target_ops *)) |
1e4d1764 | 859 | return_zero); |
35b1e5cc | 860 | de_fault (to_download_trace_state_variable, |
559d2b81 | 861 | (void (*) (struct target_ops *, struct trace_state_variable *)) |
35b1e5cc | 862 | tcomplain); |
d248b706 | 863 | de_fault (to_enable_tracepoint, |
46670d57 | 864 | (void (*) (struct target_ops *, struct bp_location *)) |
d248b706 KY |
865 | tcomplain); |
866 | de_fault (to_disable_tracepoint, | |
780b049c | 867 | (void (*) (struct target_ops *, struct bp_location *)) |
d248b706 | 868 | tcomplain); |
35b1e5cc | 869 | de_fault (to_trace_set_readonly_regions, |
583f9a86 | 870 | (void (*) (struct target_ops *)) |
35b1e5cc SS |
871 | tcomplain); |
872 | de_fault (to_trace_start, | |
e2d1aae3 | 873 | (void (*) (struct target_ops *)) |
35b1e5cc SS |
874 | tcomplain); |
875 | de_fault (to_get_trace_status, | |
8bd200f1 | 876 | (int (*) (struct target_ops *, struct trace_status *)) |
35b1e5cc | 877 | return_minus_one); |
f196051f | 878 | de_fault (to_get_tracepoint_status, |
db90e85c TT |
879 | (void (*) (struct target_ops *, struct breakpoint *, |
880 | struct uploaded_tp *)) | |
f196051f | 881 | tcomplain); |
35b1e5cc | 882 | de_fault (to_trace_stop, |
74499f1b | 883 | (void (*) (struct target_ops *)) |
35b1e5cc SS |
884 | tcomplain); |
885 | de_fault (to_trace_find, | |
bd4c6793 TT |
886 | (int (*) (struct target_ops *, |
887 | enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) | |
4136fdd2 | 888 | return_minus_one); |
35b1e5cc | 889 | de_fault (to_get_trace_state_variable_value, |
4011015b | 890 | (int (*) (struct target_ops *, int, LONGEST *)) |
35b1e5cc | 891 | return_zero); |
00bf0b85 | 892 | de_fault (to_save_trace_data, |
dc3decaf | 893 | (int (*) (struct target_ops *, const char *)) |
00bf0b85 SS |
894 | tcomplain); |
895 | de_fault (to_upload_tracepoints, | |
ab6617cc | 896 | (int (*) (struct target_ops *, struct uploaded_tp **)) |
00bf0b85 SS |
897 | return_zero); |
898 | de_fault (to_upload_trace_state_variables, | |
181e3713 | 899 | (int (*) (struct target_ops *, struct uploaded_tsv **)) |
00bf0b85 SS |
900 | return_zero); |
901 | de_fault (to_get_raw_trace_data, | |
88ee6f45 | 902 | (LONGEST (*) (struct target_ops *, gdb_byte *, ULONGEST, LONGEST)) |
00bf0b85 | 903 | tcomplain); |
405f8e94 | 904 | de_fault (to_get_min_fast_tracepoint_insn_len, |
0e67620a | 905 | (int (*) (struct target_ops *)) |
405f8e94 | 906 | return_minus_one); |
35b1e5cc | 907 | de_fault (to_set_disconnected_tracing, |
37b25738 | 908 | (void (*) (struct target_ops *, int)) |
4daf5ac0 SS |
909 | target_ignore); |
910 | de_fault (to_set_circular_trace_buffer, | |
736d5b1f | 911 | (void (*) (struct target_ops *, int)) |
4daf5ac0 | 912 | target_ignore); |
f6f899bf | 913 | de_fault (to_set_trace_buffer_size, |
4da384be | 914 | (void (*) (struct target_ops *, LONGEST)) |
f6f899bf | 915 | target_ignore); |
f196051f | 916 | de_fault (to_set_trace_notes, |
d9e68a2c TT |
917 | (int (*) (struct target_ops *, |
918 | const char *, const char *, const char *)) | |
f196051f | 919 | return_zero); |
711e434b | 920 | de_fault (to_get_tib_address, |
bd7ae0f5 | 921 | (int (*) (struct target_ops *, ptid_t, CORE_ADDR *)) |
711e434b | 922 | tcomplain); |
d914c394 | 923 | de_fault (to_set_permissions, |
c378d69d | 924 | (void (*) (struct target_ops *)) |
d914c394 | 925 | target_ignore); |
0fb4aa4b | 926 | de_fault (to_static_tracepoint_marker_at, |
61fc905d TT |
927 | (int (*) (struct target_ops *, |
928 | CORE_ADDR, struct static_tracepoint_marker *)) | |
0fb4aa4b PA |
929 | return_zero); |
930 | de_fault (to_static_tracepoint_markers_by_strid, | |
c686c57f TT |
931 | (VEC(static_tracepoint_marker_p) * (*) (struct target_ops *, |
932 | const char *)) | |
0fb4aa4b | 933 | tcomplain); |
b3b9301e | 934 | de_fault (to_traceframe_info, |
a893e81f | 935 | (struct traceframe_info * (*) (struct target_ops *)) |
1b67eb02 | 936 | return_null); |
b775012e | 937 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
efcc2da7 | 938 | (int (*) (struct target_ops *)) |
b775012e | 939 | return_zero); |
d3ce09f5 | 940 | de_fault (to_can_run_breakpoint_commands, |
78eff0ec | 941 | (int (*) (struct target_ops *)) |
d3ce09f5 | 942 | return_zero); |
d1feda86 | 943 | de_fault (to_use_agent, |
2c152180 | 944 | (int (*) (struct target_ops *, int)) |
d1feda86 YQ |
945 | tcomplain); |
946 | de_fault (to_can_use_agent, | |
fe38f897 | 947 | (int (*) (struct target_ops *)) |
d1feda86 | 948 | return_zero); |
ced63ec0 GB |
949 | de_fault (to_augmented_libraries_svr4_read, |
950 | (int (*) (void)) | |
951 | return_zero); | |
32231432 PA |
952 | de_fault (to_execution_direction, default_execution_direction); |
953 | ||
c906108c | 954 | #undef de_fault |
c906108c | 955 | |
7998dfc3 AC |
956 | /* Finally, position the target-stack beneath the squashed |
957 | "current_target". That way code looking for a non-inherited | |
958 | target method can quickly and simply find it. */ | |
959 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
960 | |
961 | if (targetdebug) | |
962 | setup_target_debug (); | |
c906108c SS |
963 | } |
964 | ||
965 | /* Push a new target type into the stack of the existing target accessors, | |
966 | possibly superseding some of the existing accessors. | |
967 | ||
c906108c SS |
968 | Rather than allow an empty stack, we always have the dummy target at |
969 | the bottom stratum, so we can call the function vectors without | |
970 | checking them. */ | |
971 | ||
b26a4dcb | 972 | void |
fba45db2 | 973 | push_target (struct target_ops *t) |
c906108c | 974 | { |
258b763a | 975 | struct target_ops **cur; |
c906108c SS |
976 | |
977 | /* Check magic number. If wrong, it probably means someone changed | |
978 | the struct definition, but not all the places that initialize one. */ | |
979 | if (t->to_magic != OPS_MAGIC) | |
980 | { | |
c5aa993b JM |
981 | fprintf_unfiltered (gdb_stderr, |
982 | "Magic number of %s target struct wrong\n", | |
983 | t->to_shortname); | |
3e43a32a MS |
984 | internal_error (__FILE__, __LINE__, |
985 | _("failed internal consistency check")); | |
c906108c SS |
986 | } |
987 | ||
258b763a AC |
988 | /* Find the proper stratum to install this target in. */ |
989 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 990 | { |
258b763a | 991 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
992 | break; |
993 | } | |
994 | ||
258b763a | 995 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 996 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
997 | targets to CUR, and not just those at this stratum level. */ |
998 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
999 | { | |
1000 | /* There's already something at this stratum level. Close it, | |
1001 | and un-hook it from the stack. */ | |
1002 | struct target_ops *tmp = (*cur); | |
5d502164 | 1003 | |
258b763a AC |
1004 | (*cur) = (*cur)->beneath; |
1005 | tmp->beneath = NULL; | |
460014f5 | 1006 | target_close (tmp); |
258b763a | 1007 | } |
c906108c SS |
1008 | |
1009 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
1010 | t->beneath = (*cur); |
1011 | (*cur) = t; | |
c906108c SS |
1012 | |
1013 | update_current_target (); | |
c906108c SS |
1014 | } |
1015 | ||
2bc416ba | 1016 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1017 | Return how many times it was removed (0 or 1). */ |
1018 | ||
1019 | int | |
fba45db2 | 1020 | unpush_target (struct target_ops *t) |
c906108c | 1021 | { |
258b763a AC |
1022 | struct target_ops **cur; |
1023 | struct target_ops *tmp; | |
c906108c | 1024 | |
c8d104ad PA |
1025 | if (t->to_stratum == dummy_stratum) |
1026 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1027 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1028 | |
c906108c | 1029 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1030 | can only occur once in the target stack. */ |
c906108c | 1031 | |
258b763a AC |
1032 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1033 | { | |
1034 | if ((*cur) == t) | |
1035 | break; | |
1036 | } | |
c906108c | 1037 | |
305436e0 PA |
1038 | /* If we don't find target_ops, quit. Only open targets should be |
1039 | closed. */ | |
258b763a | 1040 | if ((*cur) == NULL) |
305436e0 | 1041 | return 0; |
5269965e | 1042 | |
c378eb4e | 1043 | /* Unchain the target. */ |
258b763a AC |
1044 | tmp = (*cur); |
1045 | (*cur) = (*cur)->beneath; | |
1046 | tmp->beneath = NULL; | |
c906108c SS |
1047 | |
1048 | update_current_target (); | |
c906108c | 1049 | |
305436e0 PA |
1050 | /* Finally close the target. Note we do this after unchaining, so |
1051 | any target method calls from within the target_close | |
1052 | implementation don't end up in T anymore. */ | |
460014f5 | 1053 | target_close (t); |
305436e0 | 1054 | |
c906108c SS |
1055 | return 1; |
1056 | } | |
1057 | ||
aa76d38d | 1058 | void |
460014f5 | 1059 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1060 | { |
87ab71f0 | 1061 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1062 | { |
aa76d38d PA |
1063 | if (!unpush_target (target_stack)) |
1064 | { | |
1065 | fprintf_unfiltered (gdb_stderr, | |
1066 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1067 | target_stack->to_shortname); |
aa76d38d PA |
1068 | internal_error (__FILE__, __LINE__, |
1069 | _("failed internal consistency check")); | |
1070 | break; | |
1071 | } | |
1072 | } | |
1073 | } | |
1074 | ||
87ab71f0 | 1075 | void |
460014f5 | 1076 | pop_all_targets (void) |
87ab71f0 | 1077 | { |
460014f5 | 1078 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1079 | } |
1080 | ||
c0edd9ed JK |
1081 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1082 | ||
1083 | int | |
1084 | target_is_pushed (struct target_ops *t) | |
1085 | { | |
1086 | struct target_ops **cur; | |
1087 | ||
1088 | /* Check magic number. If wrong, it probably means someone changed | |
1089 | the struct definition, but not all the places that initialize one. */ | |
1090 | if (t->to_magic != OPS_MAGIC) | |
1091 | { | |
1092 | fprintf_unfiltered (gdb_stderr, | |
1093 | "Magic number of %s target struct wrong\n", | |
1094 | t->to_shortname); | |
3e43a32a MS |
1095 | internal_error (__FILE__, __LINE__, |
1096 | _("failed internal consistency check")); | |
c0edd9ed JK |
1097 | } |
1098 | ||
1099 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1100 | if (*cur == t) | |
1101 | return 1; | |
1102 | ||
1103 | return 0; | |
1104 | } | |
1105 | ||
72f5cf0e | 1106 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1107 | current thread's thread-local storage with offset OFFSET. */ |
1108 | CORE_ADDR | |
1109 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1110 | { | |
1111 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1112 | struct target_ops *target; |
1113 | ||
1114 | for (target = current_target.beneath; | |
1115 | target != NULL; | |
1116 | target = target->beneath) | |
1117 | { | |
1118 | if (target->to_get_thread_local_address != NULL) | |
1119 | break; | |
1120 | } | |
9e35dae4 | 1121 | |
117de6a9 | 1122 | if (target != NULL |
f5656ead | 1123 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1124 | { |
1125 | ptid_t ptid = inferior_ptid; | |
1126 | volatile struct gdb_exception ex; | |
1127 | ||
1128 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1129 | { | |
1130 | CORE_ADDR lm_addr; | |
1131 | ||
1132 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1133 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1134 | objfile); |
1135 | /* If it's 0, throw the appropriate exception. */ | |
1136 | if (lm_addr == 0) | |
1137 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1138 | _("TLS load module not found")); | |
1139 | ||
3e43a32a MS |
1140 | addr = target->to_get_thread_local_address (target, ptid, |
1141 | lm_addr, offset); | |
9e35dae4 DJ |
1142 | } |
1143 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1144 | throw the error to some higher catcher. */ | |
1145 | if (ex.reason < 0) | |
1146 | { | |
1147 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1148 | ||
1149 | switch (ex.error) | |
1150 | { | |
1151 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1152 | error (_("Cannot find thread-local variables " |
1153 | "in this thread library.")); | |
9e35dae4 DJ |
1154 | break; |
1155 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1156 | if (objfile_is_library) | |
1157 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 1158 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1159 | else |
1160 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 1161 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1162 | break; |
1163 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1164 | if (objfile_is_library) | |
1165 | error (_("The inferior has not yet allocated storage for" | |
1166 | " thread-local variables in\n" | |
1167 | "the shared library `%s'\n" | |
1168 | "for %s"), | |
4262abfb | 1169 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1170 | else |
1171 | error (_("The inferior has not yet allocated storage for" | |
1172 | " thread-local variables in\n" | |
1173 | "the executable `%s'\n" | |
1174 | "for %s"), | |
4262abfb | 1175 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1176 | break; |
1177 | case TLS_GENERIC_ERROR: | |
1178 | if (objfile_is_library) | |
1179 | error (_("Cannot find thread-local storage for %s, " | |
1180 | "shared library %s:\n%s"), | |
1181 | target_pid_to_str (ptid), | |
4262abfb | 1182 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1183 | else |
1184 | error (_("Cannot find thread-local storage for %s, " | |
1185 | "executable file %s:\n%s"), | |
1186 | target_pid_to_str (ptid), | |
4262abfb | 1187 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1188 | break; |
1189 | default: | |
1190 | throw_exception (ex); | |
1191 | break; | |
1192 | } | |
1193 | } | |
1194 | } | |
1195 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1196 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1197 | else | |
1198 | error (_("Cannot find thread-local variables on this target")); | |
1199 | ||
1200 | return addr; | |
1201 | } | |
1202 | ||
6be7b56e | 1203 | const char * |
9b409511 | 1204 | target_xfer_status_to_string (enum target_xfer_status err) |
6be7b56e PA |
1205 | { |
1206 | #define CASE(X) case X: return #X | |
1207 | switch (err) | |
1208 | { | |
1209 | CASE(TARGET_XFER_E_IO); | |
1210 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1211 | default: | |
1212 | return "<unknown>"; | |
1213 | } | |
1214 | #undef CASE | |
1215 | }; | |
1216 | ||
1217 | ||
c906108c SS |
1218 | #undef MIN |
1219 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1220 | ||
1221 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1222 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1223 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1224 | is responsible for freeing it. Return the number of bytes successfully | |
1225 | read. */ | |
1226 | ||
1227 | int | |
fba45db2 | 1228 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1229 | { |
c2e8b827 | 1230 | int tlen, offset, i; |
1b0ba102 | 1231 | gdb_byte buf[4]; |
c906108c SS |
1232 | int errcode = 0; |
1233 | char *buffer; | |
1234 | int buffer_allocated; | |
1235 | char *bufptr; | |
1236 | unsigned int nbytes_read = 0; | |
1237 | ||
6217bf3e MS |
1238 | gdb_assert (string); |
1239 | ||
c906108c SS |
1240 | /* Small for testing. */ |
1241 | buffer_allocated = 4; | |
1242 | buffer = xmalloc (buffer_allocated); | |
1243 | bufptr = buffer; | |
1244 | ||
c906108c SS |
1245 | while (len > 0) |
1246 | { | |
1247 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1248 | offset = memaddr & 3; | |
1249 | ||
1b0ba102 | 1250 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1251 | if (errcode != 0) |
1252 | { | |
1253 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1254 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1255 | a single byte. */ |
1256 | tlen = 1; | |
1257 | offset = 0; | |
b8eb5af0 | 1258 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1259 | if (errcode != 0) |
1260 | goto done; | |
1261 | } | |
1262 | ||
1263 | if (bufptr - buffer + tlen > buffer_allocated) | |
1264 | { | |
1265 | unsigned int bytes; | |
5d502164 | 1266 | |
c906108c SS |
1267 | bytes = bufptr - buffer; |
1268 | buffer_allocated *= 2; | |
1269 | buffer = xrealloc (buffer, buffer_allocated); | |
1270 | bufptr = buffer + bytes; | |
1271 | } | |
1272 | ||
1273 | for (i = 0; i < tlen; i++) | |
1274 | { | |
1275 | *bufptr++ = buf[i + offset]; | |
1276 | if (buf[i + offset] == '\000') | |
1277 | { | |
1278 | nbytes_read += i + 1; | |
1279 | goto done; | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | memaddr += tlen; | |
1284 | len -= tlen; | |
1285 | nbytes_read += tlen; | |
1286 | } | |
c5aa993b | 1287 | done: |
6217bf3e | 1288 | *string = buffer; |
c906108c SS |
1289 | if (errnop != NULL) |
1290 | *errnop = errcode; | |
c906108c SS |
1291 | return nbytes_read; |
1292 | } | |
1293 | ||
07b82ea5 PA |
1294 | struct target_section_table * |
1295 | target_get_section_table (struct target_ops *target) | |
1296 | { | |
1297 | struct target_ops *t; | |
1298 | ||
1299 | if (targetdebug) | |
1300 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1301 | ||
1302 | for (t = target; t != NULL; t = t->beneath) | |
1303 | if (t->to_get_section_table != NULL) | |
1304 | return (*t->to_get_section_table) (t); | |
1305 | ||
1306 | return NULL; | |
1307 | } | |
1308 | ||
8db32d44 | 1309 | /* Find a section containing ADDR. */ |
07b82ea5 | 1310 | |
0542c86d | 1311 | struct target_section * |
8db32d44 AC |
1312 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1313 | { | |
07b82ea5 | 1314 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1315 | struct target_section *secp; |
07b82ea5 PA |
1316 | |
1317 | if (table == NULL) | |
1318 | return NULL; | |
1319 | ||
1320 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1321 | { |
1322 | if (addr >= secp->addr && addr < secp->endaddr) | |
1323 | return secp; | |
1324 | } | |
1325 | return NULL; | |
1326 | } | |
1327 | ||
e6e4e701 PA |
1328 | /* Read memory from the live target, even if currently inspecting a |
1329 | traceframe. The return is the same as that of target_read. */ | |
1330 | ||
9b409511 | 1331 | static enum target_xfer_status |
e6e4e701 | 1332 | target_read_live_memory (enum target_object object, |
9b409511 YQ |
1333 | ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len, |
1334 | ULONGEST *xfered_len) | |
e6e4e701 | 1335 | { |
9b409511 | 1336 | enum target_xfer_status ret; |
e6e4e701 PA |
1337 | struct cleanup *cleanup; |
1338 | ||
1339 | /* Switch momentarily out of tfind mode so to access live memory. | |
1340 | Note that this must not clear global state, such as the frame | |
1341 | cache, which must still remain valid for the previous traceframe. | |
1342 | We may be _building_ the frame cache at this point. */ | |
1343 | cleanup = make_cleanup_restore_traceframe_number (); | |
1344 | set_traceframe_number (-1); | |
1345 | ||
9b409511 YQ |
1346 | ret = target_xfer_partial (current_target.beneath, object, NULL, |
1347 | myaddr, NULL, memaddr, len, xfered_len); | |
e6e4e701 PA |
1348 | |
1349 | do_cleanups (cleanup); | |
1350 | return ret; | |
1351 | } | |
1352 | ||
1353 | /* Using the set of read-only target sections of OPS, read live | |
1354 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1355 | top-most target again. |
1356 | ||
1357 | For interface/parameters/return description see target.h, | |
1358 | to_xfer_partial. */ | |
e6e4e701 | 1359 | |
9b409511 | 1360 | static enum target_xfer_status |
e6e4e701 PA |
1361 | memory_xfer_live_readonly_partial (struct target_ops *ops, |
1362 | enum target_object object, | |
1363 | gdb_byte *readbuf, ULONGEST memaddr, | |
9b409511 | 1364 | ULONGEST len, ULONGEST *xfered_len) |
e6e4e701 PA |
1365 | { |
1366 | struct target_section *secp; | |
1367 | struct target_section_table *table; | |
1368 | ||
1369 | secp = target_section_by_addr (ops, memaddr); | |
1370 | if (secp != NULL | |
2b2848e2 DE |
1371 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1372 | secp->the_bfd_section) | |
e6e4e701 PA |
1373 | & SEC_READONLY)) |
1374 | { | |
1375 | struct target_section *p; | |
1376 | ULONGEST memend = memaddr + len; | |
1377 | ||
1378 | table = target_get_section_table (ops); | |
1379 | ||
1380 | for (p = table->sections; p < table->sections_end; p++) | |
1381 | { | |
1382 | if (memaddr >= p->addr) | |
1383 | { | |
1384 | if (memend <= p->endaddr) | |
1385 | { | |
1386 | /* Entire transfer is within this section. */ | |
1387 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1388 | readbuf, len, xfered_len); |
e6e4e701 PA |
1389 | } |
1390 | else if (memaddr >= p->endaddr) | |
1391 | { | |
1392 | /* This section ends before the transfer starts. */ | |
1393 | continue; | |
1394 | } | |
1395 | else | |
1396 | { | |
1397 | /* This section overlaps the transfer. Just do half. */ | |
1398 | len = p->endaddr - memaddr; | |
1399 | return target_read_live_memory (object, memaddr, | |
9b409511 | 1400 | readbuf, len, xfered_len); |
e6e4e701 PA |
1401 | } |
1402 | } | |
1403 | } | |
1404 | } | |
1405 | ||
9b409511 | 1406 | return TARGET_XFER_EOF; |
e6e4e701 PA |
1407 | } |
1408 | ||
9f713294 YQ |
1409 | /* Read memory from more than one valid target. A core file, for |
1410 | instance, could have some of memory but delegate other bits to | |
1411 | the target below it. So, we must manually try all targets. */ | |
1412 | ||
9b409511 | 1413 | static enum target_xfer_status |
17fde6d0 | 1414 | raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf, |
9b409511 YQ |
1415 | const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len, |
1416 | ULONGEST *xfered_len) | |
9f713294 | 1417 | { |
9b409511 | 1418 | enum target_xfer_status res; |
9f713294 YQ |
1419 | |
1420 | do | |
1421 | { | |
1422 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
1423 | readbuf, writebuf, memaddr, len, |
1424 | xfered_len); | |
1425 | if (res == TARGET_XFER_OK) | |
9f713294 YQ |
1426 | break; |
1427 | ||
633785ff MM |
1428 | /* Stop if the target reports that the memory is not available. */ |
1429 | if (res == TARGET_XFER_E_UNAVAILABLE) | |
1430 | break; | |
1431 | ||
9f713294 YQ |
1432 | /* We want to continue past core files to executables, but not |
1433 | past a running target's memory. */ | |
1434 | if (ops->to_has_all_memory (ops)) | |
1435 | break; | |
1436 | ||
1437 | ops = ops->beneath; | |
1438 | } | |
1439 | while (ops != NULL); | |
1440 | ||
1441 | return res; | |
1442 | } | |
1443 | ||
7f79c47e DE |
1444 | /* Perform a partial memory transfer. |
1445 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 | 1446 | |
9b409511 | 1447 | static enum target_xfer_status |
f0ba3972 | 1448 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
17fde6d0 | 1449 | gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr, |
9b409511 | 1450 | ULONGEST len, ULONGEST *xfered_len) |
0779438d | 1451 | { |
9b409511 | 1452 | enum target_xfer_status res; |
cf7a04e8 DJ |
1453 | int reg_len; |
1454 | struct mem_region *region; | |
4e5d721f | 1455 | struct inferior *inf; |
cf7a04e8 | 1456 | |
07b82ea5 PA |
1457 | /* For accesses to unmapped overlay sections, read directly from |
1458 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1459 | if (readbuf != NULL && overlay_debugging) | |
1460 | { | |
1461 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1462 | |
07b82ea5 PA |
1463 | if (pc_in_unmapped_range (memaddr, section)) |
1464 | { | |
1465 | struct target_section_table *table | |
1466 | = target_get_section_table (ops); | |
1467 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1468 | |
07b82ea5 PA |
1469 | memaddr = overlay_mapped_address (memaddr, section); |
1470 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1471 | memaddr, len, xfered_len, |
07b82ea5 PA |
1472 | table->sections, |
1473 | table->sections_end, | |
1474 | section_name); | |
1475 | } | |
1476 | } | |
1477 | ||
1478 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1479 | if (readbuf != NULL && trust_readonly) |
1480 | { | |
0542c86d | 1481 | struct target_section *secp; |
07b82ea5 | 1482 | struct target_section_table *table; |
cf7a04e8 DJ |
1483 | |
1484 | secp = target_section_by_addr (ops, memaddr); | |
1485 | if (secp != NULL | |
2b2848e2 DE |
1486 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1487 | secp->the_bfd_section) | |
cf7a04e8 | 1488 | & SEC_READONLY)) |
07b82ea5 PA |
1489 | { |
1490 | table = target_get_section_table (ops); | |
1491 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 1492 | memaddr, len, xfered_len, |
07b82ea5 PA |
1493 | table->sections, |
1494 | table->sections_end, | |
1495 | NULL); | |
1496 | } | |
98646950 UW |
1497 | } |
1498 | ||
e6e4e701 PA |
1499 | /* If reading unavailable memory in the context of traceframes, and |
1500 | this address falls within a read-only section, fallback to | |
1501 | reading from live memory. */ | |
1502 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1503 | { | |
1504 | VEC(mem_range_s) *available; | |
1505 | ||
1506 | /* If we fail to get the set of available memory, then the | |
1507 | target does not support querying traceframe info, and so we | |
1508 | attempt reading from the traceframe anyway (assuming the | |
1509 | target implements the old QTro packet then). */ | |
1510 | if (traceframe_available_memory (&available, memaddr, len)) | |
1511 | { | |
1512 | struct cleanup *old_chain; | |
1513 | ||
1514 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1515 | ||
1516 | if (VEC_empty (mem_range_s, available) | |
1517 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1518 | { | |
1519 | /* Don't read into the traceframe's available | |
1520 | memory. */ | |
1521 | if (!VEC_empty (mem_range_s, available)) | |
1522 | { | |
1523 | LONGEST oldlen = len; | |
1524 | ||
1525 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1526 | gdb_assert (len <= oldlen); | |
1527 | } | |
1528 | ||
1529 | do_cleanups (old_chain); | |
1530 | ||
1531 | /* This goes through the topmost target again. */ | |
1532 | res = memory_xfer_live_readonly_partial (ops, object, | |
9b409511 YQ |
1533 | readbuf, memaddr, |
1534 | len, xfered_len); | |
1535 | if (res == TARGET_XFER_OK) | |
1536 | return TARGET_XFER_OK; | |
1537 | else | |
1538 | { | |
1539 | /* No use trying further, we know some memory starting | |
1540 | at MEMADDR isn't available. */ | |
1541 | *xfered_len = len; | |
1542 | return TARGET_XFER_E_UNAVAILABLE; | |
1543 | } | |
e6e4e701 PA |
1544 | } |
1545 | ||
1546 | /* Don't try to read more than how much is available, in | |
1547 | case the target implements the deprecated QTro packet to | |
1548 | cater for older GDBs (the target's knowledge of read-only | |
1549 | sections may be outdated by now). */ | |
1550 | len = VEC_index (mem_range_s, available, 0)->length; | |
1551 | ||
1552 | do_cleanups (old_chain); | |
1553 | } | |
1554 | } | |
1555 | ||
cf7a04e8 DJ |
1556 | /* Try GDB's internal data cache. */ |
1557 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1558 | /* region->hi == 0 means there's no upper bound. */ |
1559 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1560 | reg_len = len; |
1561 | else | |
1562 | reg_len = region->hi - memaddr; | |
1563 | ||
1564 | switch (region->attrib.mode) | |
1565 | { | |
1566 | case MEM_RO: | |
1567 | if (writebuf != NULL) | |
2ed4b548 | 1568 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1569 | break; |
1570 | ||
1571 | case MEM_WO: | |
1572 | if (readbuf != NULL) | |
2ed4b548 | 1573 | return TARGET_XFER_E_IO; |
cf7a04e8 | 1574 | break; |
a76d924d DJ |
1575 | |
1576 | case MEM_FLASH: | |
1577 | /* We only support writing to flash during "load" for now. */ | |
1578 | if (writebuf != NULL) | |
1579 | error (_("Writing to flash memory forbidden in this context")); | |
1580 | break; | |
4b5752d0 VP |
1581 | |
1582 | case MEM_NONE: | |
2ed4b548 | 1583 | return TARGET_XFER_E_IO; |
cf7a04e8 DJ |
1584 | } |
1585 | ||
6c95b8df PA |
1586 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1587 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1588 | else | |
1589 | inf = NULL; | |
4e5d721f DE |
1590 | |
1591 | if (inf != NULL | |
2f4d8875 PA |
1592 | /* The dcache reads whole cache lines; that doesn't play well |
1593 | with reading from a trace buffer, because reading outside of | |
1594 | the collected memory range fails. */ | |
1595 | && get_traceframe_number () == -1 | |
4e5d721f | 1596 | && (region->attrib.cache |
29453a14 YQ |
1597 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1598 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1599 | { |
2a2f9fe4 | 1600 | DCACHE *dcache = target_dcache_get_or_init (); |
9b409511 | 1601 | int l; |
2a2f9fe4 | 1602 | |
cf7a04e8 | 1603 | if (readbuf != NULL) |
9b409511 | 1604 | l = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1605 | else |
1606 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1607 | correctness dcache_xfer_memory should take readbuf and | |
1608 | writebuf. */ | |
9b409511 | 1609 | l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 | 1610 | reg_len, 1); |
9b409511 YQ |
1611 | if (l <= 0) |
1612 | return TARGET_XFER_E_IO; | |
cf7a04e8 | 1613 | else |
9b409511 YQ |
1614 | { |
1615 | *xfered_len = (ULONGEST) l; | |
1616 | return TARGET_XFER_OK; | |
1617 | } | |
cf7a04e8 DJ |
1618 | } |
1619 | ||
1620 | /* If none of those methods found the memory we wanted, fall back | |
1621 | to a target partial transfer. Normally a single call to | |
1622 | to_xfer_partial is enough; if it doesn't recognize an object | |
1623 | it will call the to_xfer_partial of the next target down. | |
1624 | But for memory this won't do. Memory is the only target | |
9b409511 YQ |
1625 | object which can be read from more than one valid target. |
1626 | A core file, for instance, could have some of memory but | |
1627 | delegate other bits to the target below it. So, we must | |
1628 | manually try all targets. */ | |
1629 | ||
1630 | res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len, | |
1631 | xfered_len); | |
cf7a04e8 | 1632 | |
41dcd03f DE |
1633 | /* Make sure the cache gets updated no matter what - if we are writing |
1634 | to the stack. Even if this write is not tagged as such, we still need | |
1635 | to update the cache. */ | |
1636 | ||
9b409511 | 1637 | if (res == TARGET_XFER_OK |
41dcd03f DE |
1638 | && inf != NULL |
1639 | && writebuf != NULL | |
f2de9785 | 1640 | && target_dcache_init_p () |
41dcd03f | 1641 | && !region->attrib.cache |
29453a14 YQ |
1642 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1643 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1644 | { |
f2de9785 | 1645 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 | 1646 | |
9b409511 | 1647 | dcache_update (dcache, memaddr, (void *) writebuf, reg_len); |
41dcd03f DE |
1648 | } |
1649 | ||
cf7a04e8 DJ |
1650 | /* If we still haven't got anything, return the last error. We |
1651 | give up. */ | |
1652 | return res; | |
0779438d AC |
1653 | } |
1654 | ||
f0ba3972 PA |
1655 | /* Perform a partial memory transfer. For docs see target.h, |
1656 | to_xfer_partial. */ | |
1657 | ||
9b409511 | 1658 | static enum target_xfer_status |
f0ba3972 | 1659 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
9b409511 YQ |
1660 | gdb_byte *readbuf, const gdb_byte *writebuf, |
1661 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
f0ba3972 | 1662 | { |
9b409511 | 1663 | enum target_xfer_status res; |
f0ba3972 PA |
1664 | |
1665 | /* Zero length requests are ok and require no work. */ | |
1666 | if (len == 0) | |
9b409511 | 1667 | return TARGET_XFER_EOF; |
f0ba3972 PA |
1668 | |
1669 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1670 | breakpoint insns, thus hiding out from higher layers whether | |
1671 | there are software breakpoints inserted in the code stream. */ | |
1672 | if (readbuf != NULL) | |
1673 | { | |
9b409511 YQ |
1674 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len, |
1675 | xfered_len); | |
f0ba3972 | 1676 | |
9b409511 | 1677 | if (res == TARGET_XFER_OK && !show_memory_breakpoints) |
f0ba3972 PA |
1678 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); |
1679 | } | |
1680 | else | |
1681 | { | |
1682 | void *buf; | |
1683 | struct cleanup *old_chain; | |
1684 | ||
67c059c2 AB |
1685 | /* A large write request is likely to be partially satisfied |
1686 | by memory_xfer_partial_1. We will continually malloc | |
1687 | and free a copy of the entire write request for breakpoint | |
1688 | shadow handling even though we only end up writing a small | |
1689 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1690 | len = min (4096, len); | |
1691 | ||
f0ba3972 PA |
1692 | buf = xmalloc (len); |
1693 | old_chain = make_cleanup (xfree, buf); | |
1694 | memcpy (buf, writebuf, len); | |
1695 | ||
1696 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
9b409511 YQ |
1697 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len, |
1698 | xfered_len); | |
f0ba3972 PA |
1699 | |
1700 | do_cleanups (old_chain); | |
1701 | } | |
1702 | ||
1703 | return res; | |
1704 | } | |
1705 | ||
8defab1a DJ |
1706 | static void |
1707 | restore_show_memory_breakpoints (void *arg) | |
1708 | { | |
1709 | show_memory_breakpoints = (uintptr_t) arg; | |
1710 | } | |
1711 | ||
1712 | struct cleanup * | |
1713 | make_show_memory_breakpoints_cleanup (int show) | |
1714 | { | |
1715 | int current = show_memory_breakpoints; | |
8defab1a | 1716 | |
5d502164 | 1717 | show_memory_breakpoints = show; |
8defab1a DJ |
1718 | return make_cleanup (restore_show_memory_breakpoints, |
1719 | (void *) (uintptr_t) current); | |
1720 | } | |
1721 | ||
7f79c47e DE |
1722 | /* For docs see target.h, to_xfer_partial. */ |
1723 | ||
9b409511 | 1724 | enum target_xfer_status |
27394598 AC |
1725 | target_xfer_partial (struct target_ops *ops, |
1726 | enum target_object object, const char *annex, | |
4ac248ca | 1727 | gdb_byte *readbuf, const gdb_byte *writebuf, |
9b409511 YQ |
1728 | ULONGEST offset, ULONGEST len, |
1729 | ULONGEST *xfered_len) | |
27394598 | 1730 | { |
9b409511 | 1731 | enum target_xfer_status retval; |
27394598 AC |
1732 | |
1733 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1734 | |
ce6d0892 YQ |
1735 | /* Transfer is done when LEN is zero. */ |
1736 | if (len == 0) | |
9b409511 | 1737 | return TARGET_XFER_EOF; |
ce6d0892 | 1738 | |
d914c394 SS |
1739 | if (writebuf && !may_write_memory) |
1740 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1741 | core_addr_to_string_nz (offset), plongest (len)); | |
1742 | ||
9b409511 YQ |
1743 | *xfered_len = 0; |
1744 | ||
cf7a04e8 DJ |
1745 | /* If this is a memory transfer, let the memory-specific code |
1746 | have a look at it instead. Memory transfers are more | |
1747 | complicated. */ | |
29453a14 YQ |
1748 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1749 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f | 1750 | retval = memory_xfer_partial (ops, object, readbuf, |
9b409511 | 1751 | writebuf, offset, len, xfered_len); |
9f713294 | 1752 | else if (object == TARGET_OBJECT_RAW_MEMORY) |
cf7a04e8 | 1753 | { |
9f713294 | 1754 | /* Request the normal memory object from other layers. */ |
9b409511 YQ |
1755 | retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len, |
1756 | xfered_len); | |
cf7a04e8 | 1757 | } |
9f713294 YQ |
1758 | else |
1759 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, | |
9b409511 | 1760 | writebuf, offset, len, xfered_len); |
cf7a04e8 | 1761 | |
27394598 AC |
1762 | if (targetdebug) |
1763 | { | |
1764 | const unsigned char *myaddr = NULL; | |
1765 | ||
1766 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a | 1767 | "%s:target_xfer_partial " |
9b409511 | 1768 | "(%d, %s, %s, %s, %s, %s) = %d, %s", |
27394598 AC |
1769 | ops->to_shortname, |
1770 | (int) object, | |
1771 | (annex ? annex : "(null)"), | |
53b71562 JB |
1772 | host_address_to_string (readbuf), |
1773 | host_address_to_string (writebuf), | |
0b1553bc | 1774 | core_addr_to_string_nz (offset), |
9b409511 YQ |
1775 | pulongest (len), retval, |
1776 | pulongest (*xfered_len)); | |
27394598 AC |
1777 | |
1778 | if (readbuf) | |
1779 | myaddr = readbuf; | |
1780 | if (writebuf) | |
1781 | myaddr = writebuf; | |
9b409511 | 1782 | if (retval == TARGET_XFER_OK && myaddr != NULL) |
27394598 AC |
1783 | { |
1784 | int i; | |
2bc416ba | 1785 | |
27394598 | 1786 | fputs_unfiltered (", bytes =", gdb_stdlog); |
9b409511 | 1787 | for (i = 0; i < *xfered_len; i++) |
27394598 | 1788 | { |
53b71562 | 1789 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1790 | { |
1791 | if (targetdebug < 2 && i > 0) | |
1792 | { | |
1793 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1794 | break; | |
1795 | } | |
1796 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1797 | } | |
2bc416ba | 1798 | |
27394598 AC |
1799 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1800 | } | |
1801 | } | |
2bc416ba | 1802 | |
27394598 AC |
1803 | fputc_unfiltered ('\n', gdb_stdlog); |
1804 | } | |
9b409511 YQ |
1805 | |
1806 | /* Check implementations of to_xfer_partial update *XFERED_LEN | |
1807 | properly. Do assertion after printing debug messages, so that we | |
1808 | can find more clues on assertion failure from debugging messages. */ | |
1809 | if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE) | |
1810 | gdb_assert (*xfered_len > 0); | |
1811 | ||
27394598 AC |
1812 | return retval; |
1813 | } | |
1814 | ||
578d3588 PA |
1815 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1816 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
9b409511 | 1817 | TARGET_XFER_E_IO if any error occurs. |
c906108c SS |
1818 | |
1819 | If an error occurs, no guarantee is made about the contents of the data at | |
1820 | MYADDR. In particular, the caller should not depend upon partial reads | |
1821 | filling the buffer with good data. There is no way for the caller to know | |
1822 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1823 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1824 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1825 | |
1826 | int | |
1b162304 | 1827 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1828 | { |
c35b1492 PA |
1829 | /* Dispatch to the topmost target, not the flattened current_target. |
1830 | Memory accesses check target->to_has_(all_)memory, and the | |
1831 | flattened target doesn't inherit those. */ | |
1832 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1833 | myaddr, memaddr, len) == len) |
1834 | return 0; | |
0779438d | 1835 | else |
578d3588 | 1836 | return TARGET_XFER_E_IO; |
c906108c SS |
1837 | } |
1838 | ||
aee4bf85 PA |
1839 | /* Like target_read_memory, but specify explicitly that this is a read |
1840 | from the target's raw memory. That is, this read bypasses the | |
1841 | dcache, breakpoint shadowing, etc. */ | |
1842 | ||
1843 | int | |
1844 | target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1845 | { | |
1846 | /* See comment in target_read_memory about why the request starts at | |
1847 | current_target.beneath. */ | |
1848 | if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1849 | myaddr, memaddr, len) == len) | |
1850 | return 0; | |
1851 | else | |
1852 | return TARGET_XFER_E_IO; | |
1853 | } | |
1854 | ||
4e5d721f DE |
1855 | /* Like target_read_memory, but specify explicitly that this is a read from |
1856 | the target's stack. This may trigger different cache behavior. */ | |
1857 | ||
1858 | int | |
45aa4659 | 1859 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 1860 | { |
aee4bf85 PA |
1861 | /* See comment in target_read_memory about why the request starts at |
1862 | current_target.beneath. */ | |
4e5d721f DE |
1863 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, |
1864 | myaddr, memaddr, len) == len) | |
1865 | return 0; | |
1866 | else | |
578d3588 | 1867 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1868 | } |
1869 | ||
29453a14 YQ |
1870 | /* Like target_read_memory, but specify explicitly that this is a read from |
1871 | the target's code. This may trigger different cache behavior. */ | |
1872 | ||
1873 | int | |
1874 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1875 | { | |
aee4bf85 PA |
1876 | /* See comment in target_read_memory about why the request starts at |
1877 | current_target.beneath. */ | |
29453a14 YQ |
1878 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, |
1879 | myaddr, memaddr, len) == len) | |
1880 | return 0; | |
1881 | else | |
1882 | return TARGET_XFER_E_IO; | |
1883 | } | |
1884 | ||
7f79c47e | 1885 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
9b409511 | 1886 | Returns either 0 for success or TARGET_XFER_E_IO if any |
578d3588 PA |
1887 | error occurs. If an error occurs, no guarantee is made about how |
1888 | much data got written. Callers that can deal with partial writes | |
1889 | should call target_write. */ | |
7f79c47e | 1890 | |
c906108c | 1891 | int |
45aa4659 | 1892 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1893 | { |
aee4bf85 PA |
1894 | /* See comment in target_read_memory about why the request starts at |
1895 | current_target.beneath. */ | |
c35b1492 | 1896 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, |
cf7a04e8 DJ |
1897 | myaddr, memaddr, len) == len) |
1898 | return 0; | |
0779438d | 1899 | else |
578d3588 | 1900 | return TARGET_XFER_E_IO; |
c906108c | 1901 | } |
c5aa993b | 1902 | |
f0ba3972 | 1903 | /* Write LEN bytes from MYADDR to target raw memory at address |
9b409511 | 1904 | MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO |
578d3588 PA |
1905 | if any error occurs. If an error occurs, no guarantee is made |
1906 | about how much data got written. Callers that can deal with | |
1907 | partial writes should call target_write. */ | |
f0ba3972 PA |
1908 | |
1909 | int | |
45aa4659 | 1910 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 | 1911 | { |
aee4bf85 PA |
1912 | /* See comment in target_read_memory about why the request starts at |
1913 | current_target.beneath. */ | |
f0ba3972 PA |
1914 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, |
1915 | myaddr, memaddr, len) == len) | |
1916 | return 0; | |
1917 | else | |
578d3588 | 1918 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1919 | } |
1920 | ||
fd79ecee DJ |
1921 | /* Fetch the target's memory map. */ |
1922 | ||
1923 | VEC(mem_region_s) * | |
1924 | target_memory_map (void) | |
1925 | { | |
1926 | VEC(mem_region_s) *result; | |
1927 | struct mem_region *last_one, *this_one; | |
1928 | int ix; | |
1929 | struct target_ops *t; | |
1930 | ||
1931 | if (targetdebug) | |
1932 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1933 | ||
1934 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1935 | if (t->to_memory_map != NULL) | |
1936 | break; | |
1937 | ||
1938 | if (t == NULL) | |
1939 | return NULL; | |
1940 | ||
1941 | result = t->to_memory_map (t); | |
1942 | if (result == NULL) | |
1943 | return NULL; | |
1944 | ||
1945 | qsort (VEC_address (mem_region_s, result), | |
1946 | VEC_length (mem_region_s, result), | |
1947 | sizeof (struct mem_region), mem_region_cmp); | |
1948 | ||
1949 | /* Check that regions do not overlap. Simultaneously assign | |
1950 | a numbering for the "mem" commands to use to refer to | |
1951 | each region. */ | |
1952 | last_one = NULL; | |
1953 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1954 | { | |
1955 | this_one->number = ix; | |
1956 | ||
1957 | if (last_one && last_one->hi > this_one->lo) | |
1958 | { | |
1959 | warning (_("Overlapping regions in memory map: ignoring")); | |
1960 | VEC_free (mem_region_s, result); | |
1961 | return NULL; | |
1962 | } | |
1963 | last_one = this_one; | |
1964 | } | |
1965 | ||
1966 | return result; | |
1967 | } | |
1968 | ||
a76d924d DJ |
1969 | void |
1970 | target_flash_erase (ULONGEST address, LONGEST length) | |
1971 | { | |
1972 | struct target_ops *t; | |
1973 | ||
1974 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1975 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1976 | { |
1977 | if (targetdebug) | |
1978 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1979 | hex_string (address), phex (length, 0)); | |
1980 | t->to_flash_erase (t, address, length); | |
1981 | return; | |
1982 | } | |
a76d924d DJ |
1983 | |
1984 | tcomplain (); | |
1985 | } | |
1986 | ||
1987 | void | |
1988 | target_flash_done (void) | |
1989 | { | |
1990 | struct target_ops *t; | |
1991 | ||
1992 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1993 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1994 | { |
1995 | if (targetdebug) | |
1996 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1997 | t->to_flash_done (t); | |
1998 | return; | |
1999 | } | |
a76d924d DJ |
2000 | |
2001 | tcomplain (); | |
2002 | } | |
2003 | ||
920d2a44 AC |
2004 | static void |
2005 | show_trust_readonly (struct ui_file *file, int from_tty, | |
2006 | struct cmd_list_element *c, const char *value) | |
2007 | { | |
3e43a32a MS |
2008 | fprintf_filtered (file, |
2009 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
2010 | value); |
2011 | } | |
3a11626d | 2012 | |
1e3ff5ad AC |
2013 | /* More generic transfers. */ |
2014 | ||
9b409511 | 2015 | static enum target_xfer_status |
8aa91c1e | 2016 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 2017 | const char *annex, gdb_byte *readbuf, |
9b409511 YQ |
2018 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, |
2019 | ULONGEST *xfered_len) | |
0088c768 AC |
2020 | { |
2021 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
2022 | && ops->deprecated_xfer_memory != NULL) |
2023 | /* If available, fall back to the target's | |
2024 | "deprecated_xfer_memory" method. */ | |
0088c768 | 2025 | { |
4b8a223f | 2026 | int xfered = -1; |
5d502164 | 2027 | |
0088c768 | 2028 | errno = 0; |
4b8a223f AC |
2029 | if (writebuf != NULL) |
2030 | { | |
2031 | void *buffer = xmalloc (len); | |
2032 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 2033 | |
4b8a223f | 2034 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
2035 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
2036 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
2037 | do_cleanups (cleanup); |
2038 | } | |
2039 | if (readbuf != NULL) | |
244e85c8 MS |
2040 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
2041 | 0/*read*/, NULL, ops); | |
0088c768 | 2042 | if (xfered > 0) |
9b409511 YQ |
2043 | { |
2044 | *xfered_len = (ULONGEST) xfered; | |
2045 | return TARGET_XFER_E_IO; | |
2046 | } | |
0088c768 | 2047 | else if (xfered == 0 && errno == 0) |
c8e73a31 AC |
2048 | /* "deprecated_xfer_memory" uses 0, cross checked against |
2049 | ERRNO as one indication of an error. */ | |
9b409511 | 2050 | return TARGET_XFER_EOF; |
0088c768 | 2051 | else |
9b409511 | 2052 | return TARGET_XFER_E_IO; |
0088c768 | 2053 | } |
0088c768 | 2054 | else |
6b84065d TT |
2055 | { |
2056 | gdb_assert (ops->beneath != NULL); | |
2057 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2058 | readbuf, writebuf, offset, len, | |
2059 | xfered_len); | |
2060 | } | |
0088c768 AC |
2061 | } |
2062 | ||
7f79c47e | 2063 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2064 | |
9b409511 | 2065 | static enum target_xfer_status |
1e3ff5ad AC |
2066 | target_read_partial (struct target_ops *ops, |
2067 | enum target_object object, | |
1b0ba102 | 2068 | const char *annex, gdb_byte *buf, |
9b409511 YQ |
2069 | ULONGEST offset, ULONGEST len, |
2070 | ULONGEST *xfered_len) | |
1e3ff5ad | 2071 | { |
9b409511 YQ |
2072 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len, |
2073 | xfered_len); | |
1e3ff5ad AC |
2074 | } |
2075 | ||
8a55ffb0 | 2076 | static enum target_xfer_status |
1e3ff5ad AC |
2077 | target_write_partial (struct target_ops *ops, |
2078 | enum target_object object, | |
1b0ba102 | 2079 | const char *annex, const gdb_byte *buf, |
9b409511 | 2080 | ULONGEST offset, LONGEST len, ULONGEST *xfered_len) |
1e3ff5ad | 2081 | { |
9b409511 YQ |
2082 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len, |
2083 | xfered_len); | |
1e3ff5ad AC |
2084 | } |
2085 | ||
2086 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2087 | |
2088 | /* For docs on target_read see target.h. */ | |
2089 | ||
1e3ff5ad AC |
2090 | LONGEST |
2091 | target_read (struct target_ops *ops, | |
2092 | enum target_object object, | |
1b0ba102 | 2093 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2094 | ULONGEST offset, LONGEST len) |
2095 | { | |
2096 | LONGEST xfered = 0; | |
5d502164 | 2097 | |
1e3ff5ad AC |
2098 | while (xfered < len) |
2099 | { | |
9b409511 YQ |
2100 | ULONGEST xfered_len; |
2101 | enum target_xfer_status status; | |
2102 | ||
2103 | status = target_read_partial (ops, object, annex, | |
2104 | (gdb_byte *) buf + xfered, | |
2105 | offset + xfered, len - xfered, | |
2106 | &xfered_len); | |
5d502164 | 2107 | |
1e3ff5ad | 2108 | /* Call an observer, notifying them of the xfer progress? */ |
9b409511 | 2109 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2110 | return xfered; |
9b409511 YQ |
2111 | else if (status == TARGET_XFER_OK) |
2112 | { | |
2113 | xfered += xfered_len; | |
2114 | QUIT; | |
2115 | } | |
2116 | else | |
0088c768 | 2117 | return -1; |
9b409511 | 2118 | |
1e3ff5ad AC |
2119 | } |
2120 | return len; | |
2121 | } | |
2122 | ||
f1a507a1 JB |
2123 | /* Assuming that the entire [begin, end) range of memory cannot be |
2124 | read, try to read whatever subrange is possible to read. | |
2125 | ||
2126 | The function returns, in RESULT, either zero or one memory block. | |
2127 | If there's a readable subrange at the beginning, it is completely | |
2128 | read and returned. Any further readable subrange will not be read. | |
2129 | Otherwise, if there's a readable subrange at the end, it will be | |
2130 | completely read and returned. Any readable subranges before it | |
2131 | (obviously, not starting at the beginning), will be ignored. In | |
2132 | other cases -- either no readable subrange, or readable subrange(s) | |
2133 | that is neither at the beginning, or end, nothing is returned. | |
2134 | ||
2135 | The purpose of this function is to handle a read across a boundary | |
2136 | of accessible memory in a case when memory map is not available. | |
2137 | The above restrictions are fine for this case, but will give | |
2138 | incorrect results if the memory is 'patchy'. However, supporting | |
2139 | 'patchy' memory would require trying to read every single byte, | |
2140 | and it seems unacceptable solution. Explicit memory map is | |
2141 | recommended for this case -- and target_read_memory_robust will | |
2142 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2143 | |
2144 | static void | |
3e43a32a MS |
2145 | read_whatever_is_readable (struct target_ops *ops, |
2146 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2147 | VEC(memory_read_result_s) **result) |
d5086790 | 2148 | { |
f1a507a1 | 2149 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2150 | ULONGEST current_begin = begin; |
2151 | ULONGEST current_end = end; | |
2152 | int forward; | |
2153 | memory_read_result_s r; | |
9b409511 | 2154 | ULONGEST xfered_len; |
8dedea02 VP |
2155 | |
2156 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2157 | if (end - begin <= 1) | |
13b3fd9b MS |
2158 | { |
2159 | xfree (buf); | |
2160 | return; | |
2161 | } | |
8dedea02 VP |
2162 | |
2163 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2164 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2165 | at the boundary of accessible region. */ |
2166 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 | 2167 | buf, begin, 1, &xfered_len) == TARGET_XFER_OK) |
8dedea02 VP |
2168 | { |
2169 | forward = 1; | |
2170 | ++current_begin; | |
2171 | } | |
2172 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
9b409511 YQ |
2173 | buf + (end-begin) - 1, end - 1, 1, |
2174 | &xfered_len) == TARGET_XFER_OK) | |
8dedea02 VP |
2175 | { |
2176 | forward = 0; | |
2177 | --current_end; | |
2178 | } | |
2179 | else | |
2180 | { | |
13b3fd9b | 2181 | xfree (buf); |
8dedea02 VP |
2182 | return; |
2183 | } | |
2184 | ||
2185 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2186 | found to be not readable as a whole. | |
2187 | ||
2188 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2189 | so there's no point trying further. */ | |
2190 | while (current_end - current_begin > 1) | |
2191 | { | |
2192 | ULONGEST first_half_begin, first_half_end; | |
2193 | ULONGEST second_half_begin, second_half_end; | |
2194 | LONGEST xfer; | |
8dedea02 | 2195 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2196 | |
8dedea02 VP |
2197 | if (forward) |
2198 | { | |
2199 | first_half_begin = current_begin; | |
2200 | first_half_end = middle; | |
2201 | second_half_begin = middle; | |
2202 | second_half_end = current_end; | |
2203 | } | |
2204 | else | |
2205 | { | |
2206 | first_half_begin = middle; | |
2207 | first_half_end = current_end; | |
2208 | second_half_begin = current_begin; | |
2209 | second_half_end = middle; | |
2210 | } | |
2211 | ||
2212 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2213 | buf + (first_half_begin - begin), | |
2214 | first_half_begin, | |
2215 | first_half_end - first_half_begin); | |
2216 | ||
2217 | if (xfer == first_half_end - first_half_begin) | |
2218 | { | |
c378eb4e | 2219 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2220 | other half. */ |
8dedea02 VP |
2221 | current_begin = second_half_begin; |
2222 | current_end = second_half_end; | |
2223 | } | |
2224 | else | |
2225 | { | |
c378eb4e MS |
2226 | /* This half is not readable. Because we've tried one byte, we |
2227 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2228 | iteration to divide again and try to read. |
2229 | ||
2230 | We don't handle the other half, because this function only tries | |
2231 | to read a single readable subrange. */ | |
2232 | current_begin = first_half_begin; | |
2233 | current_end = first_half_end; | |
2234 | } | |
2235 | } | |
2236 | ||
2237 | if (forward) | |
2238 | { | |
2239 | /* The [begin, current_begin) range has been read. */ | |
2240 | r.begin = begin; | |
2241 | r.end = current_begin; | |
2242 | r.data = buf; | |
2243 | } | |
2244 | else | |
2245 | { | |
2246 | /* The [current_end, end) range has been read. */ | |
2247 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2248 | |
8dedea02 VP |
2249 | r.data = xmalloc (rlen); |
2250 | memcpy (r.data, buf + current_end - begin, rlen); | |
2251 | r.begin = current_end; | |
2252 | r.end = end; | |
2253 | xfree (buf); | |
2254 | } | |
2255 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2256 | } | |
2257 | ||
2258 | void | |
2259 | free_memory_read_result_vector (void *x) | |
2260 | { | |
2261 | VEC(memory_read_result_s) *v = x; | |
2262 | memory_read_result_s *current; | |
2263 | int ix; | |
2264 | ||
2265 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2266 | { | |
2267 | xfree (current->data); | |
2268 | } | |
2269 | VEC_free (memory_read_result_s, v); | |
2270 | } | |
2271 | ||
2272 | VEC(memory_read_result_s) * | |
2273 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2274 | { | |
2275 | VEC(memory_read_result_s) *result = 0; | |
2276 | ||
2277 | LONGEST xfered = 0; | |
d5086790 VP |
2278 | while (xfered < len) |
2279 | { | |
8dedea02 VP |
2280 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2281 | LONGEST rlen; | |
5d502164 | 2282 | |
8dedea02 VP |
2283 | /* If there is no explicit region, a fake one should be created. */ |
2284 | gdb_assert (region); | |
2285 | ||
2286 | if (region->hi == 0) | |
2287 | rlen = len - xfered; | |
2288 | else | |
2289 | rlen = region->hi - offset; | |
2290 | ||
2291 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2292 | { |
c378eb4e | 2293 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2294 | if the region is explicitly marked inaccessible, or |
2295 | 'inaccessible-by-default' is in effect. */ | |
2296 | xfered += rlen; | |
2297 | } | |
2298 | else | |
2299 | { | |
2300 | LONGEST to_read = min (len - xfered, rlen); | |
2301 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2302 | ||
2303 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2304 | (gdb_byte *) buffer, | |
2305 | offset + xfered, to_read); | |
2306 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2307 | if (xfer <= 0) |
d5086790 | 2308 | { |
c378eb4e | 2309 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2310 | some subrange. */ |
2311 | xfree (buffer); | |
3e43a32a MS |
2312 | read_whatever_is_readable (ops, offset + xfered, |
2313 | offset + xfered + to_read, &result); | |
8dedea02 | 2314 | xfered += to_read; |
d5086790 | 2315 | } |
8dedea02 VP |
2316 | else |
2317 | { | |
2318 | struct memory_read_result r; | |
2319 | r.data = buffer; | |
2320 | r.begin = offset + xfered; | |
2321 | r.end = r.begin + xfer; | |
2322 | VEC_safe_push (memory_read_result_s, result, &r); | |
2323 | xfered += xfer; | |
2324 | } | |
2325 | QUIT; | |
d5086790 | 2326 | } |
d5086790 | 2327 | } |
8dedea02 | 2328 | return result; |
d5086790 VP |
2329 | } |
2330 | ||
8dedea02 | 2331 | |
cf7a04e8 DJ |
2332 | /* An alternative to target_write with progress callbacks. */ |
2333 | ||
1e3ff5ad | 2334 | LONGEST |
cf7a04e8 DJ |
2335 | target_write_with_progress (struct target_ops *ops, |
2336 | enum target_object object, | |
2337 | const char *annex, const gdb_byte *buf, | |
2338 | ULONGEST offset, LONGEST len, | |
2339 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2340 | { |
2341 | LONGEST xfered = 0; | |
a76d924d DJ |
2342 | |
2343 | /* Give the progress callback a chance to set up. */ | |
2344 | if (progress) | |
2345 | (*progress) (0, baton); | |
2346 | ||
1e3ff5ad AC |
2347 | while (xfered < len) |
2348 | { | |
9b409511 YQ |
2349 | ULONGEST xfered_len; |
2350 | enum target_xfer_status status; | |
2351 | ||
2352 | status = target_write_partial (ops, object, annex, | |
2353 | (gdb_byte *) buf + xfered, | |
2354 | offset + xfered, len - xfered, | |
2355 | &xfered_len); | |
cf7a04e8 | 2356 | |
9b409511 | 2357 | if (status == TARGET_XFER_EOF) |
13547ab6 | 2358 | return xfered; |
9b409511 | 2359 | if (TARGET_XFER_STATUS_ERROR_P (status)) |
0088c768 | 2360 | return -1; |
cf7a04e8 | 2361 | |
9b409511 | 2362 | gdb_assert (status == TARGET_XFER_OK); |
cf7a04e8 | 2363 | if (progress) |
9b409511 | 2364 | (*progress) (xfered_len, baton); |
cf7a04e8 | 2365 | |
9b409511 | 2366 | xfered += xfered_len; |
1e3ff5ad AC |
2367 | QUIT; |
2368 | } | |
2369 | return len; | |
2370 | } | |
2371 | ||
7f79c47e DE |
2372 | /* For docs on target_write see target.h. */ |
2373 | ||
cf7a04e8 DJ |
2374 | LONGEST |
2375 | target_write (struct target_ops *ops, | |
2376 | enum target_object object, | |
2377 | const char *annex, const gdb_byte *buf, | |
2378 | ULONGEST offset, LONGEST len) | |
2379 | { | |
2380 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2381 | NULL, NULL); | |
2382 | } | |
2383 | ||
159f81f3 DJ |
2384 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2385 | the size of the transferred data. PADDING additional bytes are | |
2386 | available in *BUF_P. This is a helper function for | |
2387 | target_read_alloc; see the declaration of that function for more | |
2388 | information. */ | |
13547ab6 | 2389 | |
159f81f3 DJ |
2390 | static LONGEST |
2391 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2392 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2393 | { |
2394 | size_t buf_alloc, buf_pos; | |
2395 | gdb_byte *buf; | |
13547ab6 DJ |
2396 | |
2397 | /* This function does not have a length parameter; it reads the | |
2398 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2399 | from one target and partly from another (in a different stratum, | |
2400 | e.g. a core file and an executable). Both reasons make it | |
2401 | unsuitable for reading memory. */ | |
2402 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2403 | ||
2404 | /* Start by reading up to 4K at a time. The target will throttle | |
2405 | this number down if necessary. */ | |
2406 | buf_alloc = 4096; | |
2407 | buf = xmalloc (buf_alloc); | |
2408 | buf_pos = 0; | |
2409 | while (1) | |
2410 | { | |
9b409511 YQ |
2411 | ULONGEST xfered_len; |
2412 | enum target_xfer_status status; | |
2413 | ||
2414 | status = target_read_partial (ops, object, annex, &buf[buf_pos], | |
2415 | buf_pos, buf_alloc - buf_pos - padding, | |
2416 | &xfered_len); | |
2417 | ||
2418 | if (status == TARGET_XFER_EOF) | |
13547ab6 DJ |
2419 | { |
2420 | /* Read all there was. */ | |
2421 | if (buf_pos == 0) | |
2422 | xfree (buf); | |
2423 | else | |
2424 | *buf_p = buf; | |
2425 | return buf_pos; | |
2426 | } | |
9b409511 YQ |
2427 | else if (status != TARGET_XFER_OK) |
2428 | { | |
2429 | /* An error occurred. */ | |
2430 | xfree (buf); | |
2431 | return TARGET_XFER_E_IO; | |
2432 | } | |
13547ab6 | 2433 | |
9b409511 | 2434 | buf_pos += xfered_len; |
13547ab6 DJ |
2435 | |
2436 | /* If the buffer is filling up, expand it. */ | |
2437 | if (buf_alloc < buf_pos * 2) | |
2438 | { | |
2439 | buf_alloc *= 2; | |
2440 | buf = xrealloc (buf, buf_alloc); | |
2441 | } | |
2442 | ||
2443 | QUIT; | |
2444 | } | |
2445 | } | |
2446 | ||
159f81f3 DJ |
2447 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2448 | the size of the transferred data. See the declaration in "target.h" | |
2449 | function for more information about the return value. */ | |
2450 | ||
2451 | LONGEST | |
2452 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2453 | const char *annex, gdb_byte **buf_p) | |
2454 | { | |
2455 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2456 | } | |
2457 | ||
2458 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2459 | returned as a string, allocated using xmalloc. If an error occurs | |
2460 | or the transfer is unsupported, NULL is returned. Empty objects | |
2461 | are returned as allocated but empty strings. A warning is issued | |
2462 | if the result contains any embedded NUL bytes. */ | |
2463 | ||
2464 | char * | |
2465 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2466 | const char *annex) | |
2467 | { | |
39086a0e PA |
2468 | gdb_byte *buffer; |
2469 | char *bufstr; | |
7313baad | 2470 | LONGEST i, transferred; |
159f81f3 | 2471 | |
39086a0e PA |
2472 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2473 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2474 | |
2475 | if (transferred < 0) | |
2476 | return NULL; | |
2477 | ||
2478 | if (transferred == 0) | |
2479 | return xstrdup (""); | |
2480 | ||
39086a0e | 2481 | bufstr[transferred] = 0; |
7313baad UW |
2482 | |
2483 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2484 | for (i = strlen (bufstr); i < transferred; i++) |
2485 | if (bufstr[i] != 0) | |
7313baad UW |
2486 | { |
2487 | warning (_("target object %d, annex %s, " | |
2488 | "contained unexpected null characters"), | |
2489 | (int) object, annex ? annex : "(none)"); | |
2490 | break; | |
2491 | } | |
159f81f3 | 2492 | |
39086a0e | 2493 | return bufstr; |
159f81f3 DJ |
2494 | } |
2495 | ||
b6591e8b AC |
2496 | /* Memory transfer methods. */ |
2497 | ||
2498 | void | |
1b0ba102 | 2499 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2500 | LONGEST len) |
2501 | { | |
07b82ea5 PA |
2502 | /* This method is used to read from an alternate, non-current |
2503 | target. This read must bypass the overlay support (as symbols | |
2504 | don't match this target), and GDB's internal cache (wrong cache | |
2505 | for this target). */ | |
2506 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2507 | != len) |
578d3588 | 2508 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2509 | } |
2510 | ||
2511 | ULONGEST | |
5d502164 MS |
2512 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2513 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2514 | { |
f6519ebc | 2515 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2516 | |
2517 | gdb_assert (len <= sizeof (buf)); | |
2518 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2519 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2520 | } |
2521 | ||
3db08215 MM |
2522 | /* See target.h. */ |
2523 | ||
d914c394 SS |
2524 | int |
2525 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2526 | struct bp_target_info *bp_tgt) | |
2527 | { | |
2528 | if (!may_insert_breakpoints) | |
2529 | { | |
2530 | warning (_("May not insert breakpoints")); | |
2531 | return 1; | |
2532 | } | |
2533 | ||
6b84065d TT |
2534 | return current_target.to_insert_breakpoint (¤t_target, |
2535 | gdbarch, bp_tgt); | |
d914c394 SS |
2536 | } |
2537 | ||
3db08215 MM |
2538 | /* See target.h. */ |
2539 | ||
d914c394 | 2540 | int |
6b84065d TT |
2541 | target_remove_breakpoint (struct gdbarch *gdbarch, |
2542 | struct bp_target_info *bp_tgt) | |
d914c394 SS |
2543 | { |
2544 | /* This is kind of a weird case to handle, but the permission might | |
2545 | have been changed after breakpoints were inserted - in which case | |
2546 | we should just take the user literally and assume that any | |
2547 | breakpoints should be left in place. */ | |
2548 | if (!may_insert_breakpoints) | |
2549 | { | |
2550 | warning (_("May not remove breakpoints")); | |
2551 | return 1; | |
2552 | } | |
2553 | ||
6b84065d TT |
2554 | return current_target.to_remove_breakpoint (¤t_target, |
2555 | gdbarch, bp_tgt); | |
d914c394 SS |
2556 | } |
2557 | ||
c906108c | 2558 | static void |
fba45db2 | 2559 | target_info (char *args, int from_tty) |
c906108c SS |
2560 | { |
2561 | struct target_ops *t; | |
c906108c | 2562 | int has_all_mem = 0; |
c5aa993b | 2563 | |
c906108c | 2564 | if (symfile_objfile != NULL) |
4262abfb JK |
2565 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2566 | objfile_name (symfile_objfile)); | |
c906108c | 2567 | |
258b763a | 2568 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2569 | { |
c35b1492 | 2570 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2571 | continue; |
2572 | ||
c5aa993b | 2573 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2574 | continue; |
2575 | if (has_all_mem) | |
3e43a32a MS |
2576 | printf_unfiltered (_("\tWhile running this, " |
2577 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2578 | printf_unfiltered ("%s:\n", t->to_longname); |
2579 | (t->to_files_info) (t); | |
c35b1492 | 2580 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2581 | } |
2582 | } | |
2583 | ||
fd79ecee DJ |
2584 | /* This function is called before any new inferior is created, e.g. |
2585 | by running a program, attaching, or connecting to a target. | |
2586 | It cleans up any state from previous invocations which might | |
2587 | change between runs. This is a subset of what target_preopen | |
2588 | resets (things which might change between targets). */ | |
2589 | ||
2590 | void | |
2591 | target_pre_inferior (int from_tty) | |
2592 | { | |
c378eb4e | 2593 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2594 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2595 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2596 | to reproduce: |
2597 | ||
2598 | bash$ ./foo& | |
2599 | [1] 4711 | |
2600 | bash$ ./foo& | |
2601 | [1] 4712 | |
2602 | bash$ gdb ./foo | |
2603 | [...] | |
2604 | (gdb) attach 4711 | |
2605 | (gdb) detach | |
2606 | (gdb) attach 4712 | |
2607 | Cannot access memory at address 0xdeadbeef | |
2608 | */ | |
b9db4ced | 2609 | |
50c71eaf PA |
2610 | /* In some OSs, the shared library list is the same/global/shared |
2611 | across inferiors. If code is shared between processes, so are | |
2612 | memory regions and features. */ | |
f5656ead | 2613 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2614 | { |
2615 | no_shared_libraries (NULL, from_tty); | |
2616 | ||
2617 | invalidate_target_mem_regions (); | |
424163ea | 2618 | |
50c71eaf PA |
2619 | target_clear_description (); |
2620 | } | |
8ffcbaaf YQ |
2621 | |
2622 | agent_capability_invalidate (); | |
fd79ecee DJ |
2623 | } |
2624 | ||
b8fa0bfa PA |
2625 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2626 | inferior. */ | |
2627 | ||
2628 | static int | |
2629 | dispose_inferior (struct inferior *inf, void *args) | |
2630 | { | |
2631 | struct thread_info *thread; | |
2632 | ||
2633 | thread = any_thread_of_process (inf->pid); | |
2634 | if (thread) | |
2635 | { | |
2636 | switch_to_thread (thread->ptid); | |
2637 | ||
2638 | /* Core inferiors actually should be detached, not killed. */ | |
2639 | if (target_has_execution) | |
2640 | target_kill (); | |
2641 | else | |
2642 | target_detach (NULL, 0); | |
2643 | } | |
2644 | ||
2645 | return 0; | |
2646 | } | |
2647 | ||
c906108c SS |
2648 | /* This is to be called by the open routine before it does |
2649 | anything. */ | |
2650 | ||
2651 | void | |
fba45db2 | 2652 | target_preopen (int from_tty) |
c906108c | 2653 | { |
c5aa993b | 2654 | dont_repeat (); |
c906108c | 2655 | |
b8fa0bfa | 2656 | if (have_inferiors ()) |
c5aa993b | 2657 | { |
adf40b2e | 2658 | if (!from_tty |
b8fa0bfa PA |
2659 | || !have_live_inferiors () |
2660 | || query (_("A program is being debugged already. Kill it? "))) | |
2661 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2662 | else |
8a3fe4f8 | 2663 | error (_("Program not killed.")); |
c906108c SS |
2664 | } |
2665 | ||
2666 | /* Calling target_kill may remove the target from the stack. But if | |
2667 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2668 | /* Leave the exec target, though. The user may be switching from a |
2669 | live process to a core of the same program. */ | |
460014f5 | 2670 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2671 | |
2672 | target_pre_inferior (from_tty); | |
c906108c SS |
2673 | } |
2674 | ||
2675 | /* Detach a target after doing deferred register stores. */ | |
2676 | ||
2677 | void | |
52554a0e | 2678 | target_detach (const char *args, int from_tty) |
c906108c | 2679 | { |
136d6dae VP |
2680 | struct target_ops* t; |
2681 | ||
f5656ead | 2682 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2683 | /* Don't remove global breakpoints here. They're removed on |
2684 | disconnection from the target. */ | |
2685 | ; | |
2686 | else | |
2687 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2688 | them before detaching. */ | |
dfd4cc63 | 2689 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2690 | |
24291992 PA |
2691 | prepare_for_detach (); |
2692 | ||
136d6dae VP |
2693 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2694 | { | |
2695 | if (t->to_detach != NULL) | |
2696 | { | |
2697 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2698 | if (targetdebug) |
2699 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2700 | args, from_tty); | |
136d6dae VP |
2701 | return; |
2702 | } | |
2703 | } | |
2704 | ||
9b20d036 | 2705 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2706 | } |
2707 | ||
6ad8ae5c DJ |
2708 | void |
2709 | target_disconnect (char *args, int from_tty) | |
2710 | { | |
597320e7 DJ |
2711 | struct target_ops *t; |
2712 | ||
50c71eaf PA |
2713 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2714 | are global across processes, we have to remove them before | |
2715 | disconnecting. */ | |
74960c60 VP |
2716 | remove_breakpoints (); |
2717 | ||
597320e7 DJ |
2718 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2719 | if (t->to_disconnect != NULL) | |
2720 | { | |
2721 | if (targetdebug) | |
2722 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2723 | args, from_tty); | |
2724 | t->to_disconnect (t, args, from_tty); | |
2725 | return; | |
2726 | } | |
2727 | ||
2728 | tcomplain (); | |
6ad8ae5c DJ |
2729 | } |
2730 | ||
117de6a9 | 2731 | ptid_t |
47608cb1 | 2732 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2733 | { |
2734 | struct target_ops *t; | |
6b84065d TT |
2735 | ptid_t retval = (current_target.to_wait) (¤t_target, ptid, |
2736 | status, options); | |
117de6a9 | 2737 | |
6b84065d | 2738 | if (targetdebug) |
117de6a9 | 2739 | { |
6b84065d TT |
2740 | char *status_string; |
2741 | char *options_string; | |
117de6a9 | 2742 | |
6b84065d TT |
2743 | status_string = target_waitstatus_to_string (status); |
2744 | options_string = target_options_to_string (options); | |
2745 | fprintf_unfiltered (gdb_stdlog, | |
2746 | "target_wait (%d, status, options={%s})" | |
2747 | " = %d, %s\n", | |
2748 | ptid_get_pid (ptid), options_string, | |
2749 | ptid_get_pid (retval), status_string); | |
2750 | xfree (status_string); | |
2751 | xfree (options_string); | |
117de6a9 PA |
2752 | } |
2753 | ||
6b84065d | 2754 | return retval; |
117de6a9 PA |
2755 | } |
2756 | ||
2757 | char * | |
2758 | target_pid_to_str (ptid_t ptid) | |
2759 | { | |
2760 | struct target_ops *t; | |
2761 | ||
2762 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2763 | { | |
2764 | if (t->to_pid_to_str != NULL) | |
2765 | return (*t->to_pid_to_str) (t, ptid); | |
2766 | } | |
2767 | ||
2768 | return normal_pid_to_str (ptid); | |
2769 | } | |
2770 | ||
4694da01 TT |
2771 | char * |
2772 | target_thread_name (struct thread_info *info) | |
2773 | { | |
2774 | struct target_ops *t; | |
2775 | ||
2776 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2777 | { | |
2778 | if (t->to_thread_name != NULL) | |
503a628d | 2779 | return (*t->to_thread_name) (t, info); |
4694da01 TT |
2780 | } |
2781 | ||
2782 | return NULL; | |
2783 | } | |
2784 | ||
e1ac3328 | 2785 | void |
2ea28649 | 2786 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2787 | { |
28439f5e PA |
2788 | struct target_ops *t; |
2789 | ||
4e5d721f | 2790 | target_dcache_invalidate (); |
28439f5e | 2791 | |
6b84065d TT |
2792 | current_target.to_resume (¤t_target, ptid, step, signal); |
2793 | if (targetdebug) | |
2794 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2795 | ptid_get_pid (ptid), | |
2796 | step ? "step" : "continue", | |
2797 | gdb_signal_to_name (signal)); | |
28439f5e | 2798 | |
6b84065d TT |
2799 | registers_changed_ptid (ptid); |
2800 | set_executing (ptid, 1); | |
2801 | set_running (ptid, 1); | |
2802 | clear_inline_frame_state (ptid); | |
e1ac3328 | 2803 | } |
2455069d UW |
2804 | |
2805 | void | |
2806 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2807 | { | |
2808 | struct target_ops *t; | |
2809 | ||
2810 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2811 | { | |
2812 | if (t->to_pass_signals != NULL) | |
2813 | { | |
2814 | if (targetdebug) | |
2815 | { | |
2816 | int i; | |
2817 | ||
2818 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2819 | numsigs); | |
2820 | ||
2821 | for (i = 0; i < numsigs; i++) | |
2822 | if (pass_signals[i]) | |
2823 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2824 | gdb_signal_to_name (i)); |
2455069d UW |
2825 | |
2826 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2827 | } | |
2828 | ||
94bedb42 | 2829 | (*t->to_pass_signals) (t, numsigs, pass_signals); |
2455069d UW |
2830 | return; |
2831 | } | |
2832 | } | |
2833 | } | |
2834 | ||
9b224c5e PA |
2835 | void |
2836 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2837 | { | |
2838 | struct target_ops *t; | |
2839 | ||
2840 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2841 | { | |
2842 | if (t->to_program_signals != NULL) | |
2843 | { | |
2844 | if (targetdebug) | |
2845 | { | |
2846 | int i; | |
2847 | ||
2848 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2849 | numsigs); | |
2850 | ||
2851 | for (i = 0; i < numsigs; i++) | |
2852 | if (program_signals[i]) | |
2853 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2854 | gdb_signal_to_name (i)); |
9b224c5e PA |
2855 | |
2856 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2857 | } | |
2858 | ||
daf5e9b6 | 2859 | (*t->to_program_signals) (t, numsigs, program_signals); |
9b224c5e PA |
2860 | return; |
2861 | } | |
2862 | } | |
2863 | } | |
2864 | ||
ee057212 DJ |
2865 | /* Look through the list of possible targets for a target that can |
2866 | follow forks. */ | |
2867 | ||
2868 | int | |
07107ca6 | 2869 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2870 | { |
2871 | struct target_ops *t; | |
2872 | ||
2873 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2874 | { | |
2875 | if (t->to_follow_fork != NULL) | |
2876 | { | |
07107ca6 | 2877 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2878 | |
ee057212 | 2879 | if (targetdebug) |
07107ca6 LM |
2880 | fprintf_unfiltered (gdb_stdlog, |
2881 | "target_follow_fork (%d, %d) = %d\n", | |
2882 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2883 | return retval; |
2884 | } | |
2885 | } | |
2886 | ||
2887 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2888 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2889 | _("could not find a target to follow fork")); |
ee057212 DJ |
2890 | } |
2891 | ||
136d6dae VP |
2892 | void |
2893 | target_mourn_inferior (void) | |
2894 | { | |
2895 | struct target_ops *t; | |
5d502164 | 2896 | |
136d6dae VP |
2897 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2898 | { | |
2899 | if (t->to_mourn_inferior != NULL) | |
2900 | { | |
2901 | t->to_mourn_inferior (t); | |
947b8855 PA |
2902 | if (targetdebug) |
2903 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2904 | |
2905 | /* We no longer need to keep handles on any of the object files. | |
2906 | Make sure to release them to avoid unnecessarily locking any | |
2907 | of them while we're not actually debugging. */ | |
2908 | bfd_cache_close_all (); | |
2909 | ||
136d6dae VP |
2910 | return; |
2911 | } | |
2912 | } | |
2913 | ||
2914 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2915 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2916 | } |
2917 | ||
424163ea DJ |
2918 | /* Look for a target which can describe architectural features, starting |
2919 | from TARGET. If we find one, return its description. */ | |
2920 | ||
2921 | const struct target_desc * | |
2922 | target_read_description (struct target_ops *target) | |
2923 | { | |
2924 | struct target_ops *t; | |
2925 | ||
2926 | for (t = target; t != NULL; t = t->beneath) | |
2927 | if (t->to_read_description != NULL) | |
2928 | { | |
2929 | const struct target_desc *tdesc; | |
2930 | ||
2931 | tdesc = t->to_read_description (t); | |
2932 | if (tdesc) | |
2933 | return tdesc; | |
2934 | } | |
2935 | ||
2936 | return NULL; | |
2937 | } | |
2938 | ||
08388c79 DE |
2939 | /* The default implementation of to_search_memory. |
2940 | This implements a basic search of memory, reading target memory and | |
2941 | performing the search here (as opposed to performing the search in on the | |
2942 | target side with, for example, gdbserver). */ | |
2943 | ||
2944 | int | |
2945 | simple_search_memory (struct target_ops *ops, | |
2946 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2947 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2948 | CORE_ADDR *found_addrp) | |
2949 | { | |
2950 | /* NOTE: also defined in find.c testcase. */ | |
2951 | #define SEARCH_CHUNK_SIZE 16000 | |
2952 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2953 | /* Buffer to hold memory contents for searching. */ | |
2954 | gdb_byte *search_buf; | |
2955 | unsigned search_buf_size; | |
2956 | struct cleanup *old_cleanups; | |
2957 | ||
2958 | search_buf_size = chunk_size + pattern_len - 1; | |
2959 | ||
2960 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2961 | if (search_space_len < search_buf_size) | |
2962 | search_buf_size = search_space_len; | |
2963 | ||
2964 | search_buf = malloc (search_buf_size); | |
2965 | if (search_buf == NULL) | |
5e1471f5 | 2966 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2967 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2968 | ||
2969 | /* Prime the search buffer. */ | |
2970 | ||
2971 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2972 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2973 | { | |
b3dc46ff AB |
2974 | warning (_("Unable to access %s bytes of target " |
2975 | "memory at %s, halting search."), | |
2976 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2977 | do_cleanups (old_cleanups); |
2978 | return -1; | |
2979 | } | |
2980 | ||
2981 | /* Perform the search. | |
2982 | ||
2983 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2984 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2985 | read in another N bytes. */ | |
2986 | ||
2987 | while (search_space_len >= pattern_len) | |
2988 | { | |
2989 | gdb_byte *found_ptr; | |
2990 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2991 | ||
2992 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2993 | pattern, pattern_len); | |
2994 | ||
2995 | if (found_ptr != NULL) | |
2996 | { | |
2997 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2998 | |
08388c79 DE |
2999 | *found_addrp = found_addr; |
3000 | do_cleanups (old_cleanups); | |
3001 | return 1; | |
3002 | } | |
3003 | ||
3004 | /* Not found in this chunk, skip to next chunk. */ | |
3005 | ||
3006 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
3007 | if (search_space_len >= chunk_size) | |
3008 | search_space_len -= chunk_size; | |
3009 | else | |
3010 | search_space_len = 0; | |
3011 | ||
3012 | if (search_space_len >= pattern_len) | |
3013 | { | |
3014 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 3015 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
3016 | int nr_to_read; |
3017 | ||
3018 | /* Copy the trailing part of the previous iteration to the front | |
3019 | of the buffer for the next iteration. */ | |
3020 | gdb_assert (keep_len == pattern_len - 1); | |
3021 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
3022 | ||
3023 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
3024 | ||
3025 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
3026 | search_buf + keep_len, read_addr, | |
3027 | nr_to_read) != nr_to_read) | |
3028 | { | |
b3dc46ff | 3029 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 3030 | "memory at %s, halting search."), |
b3dc46ff | 3031 | plongest (nr_to_read), |
08388c79 DE |
3032 | hex_string (read_addr)); |
3033 | do_cleanups (old_cleanups); | |
3034 | return -1; | |
3035 | } | |
3036 | ||
3037 | start_addr += chunk_size; | |
3038 | } | |
3039 | } | |
3040 | ||
3041 | /* Not found. */ | |
3042 | ||
3043 | do_cleanups (old_cleanups); | |
3044 | return 0; | |
3045 | } | |
3046 | ||
3047 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
3048 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
3049 | ||
3050 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
3051 | requiring halting of the search (e.g. memory read error). | |
3052 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
3053 | ||
3054 | int | |
3055 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
3056 | const gdb_byte *pattern, ULONGEST pattern_len, | |
3057 | CORE_ADDR *found_addrp) | |
3058 | { | |
3059 | struct target_ops *t; | |
3060 | int found; | |
3061 | ||
3062 | /* We don't use INHERIT to set current_target.to_search_memory, | |
3063 | so we have to scan the target stack and handle targetdebug | |
3064 | ourselves. */ | |
3065 | ||
3066 | if (targetdebug) | |
3067 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3068 | hex_string (start_addr)); | |
3069 | ||
3070 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3071 | if (t->to_search_memory != NULL) | |
3072 | break; | |
3073 | ||
3074 | if (t != NULL) | |
3075 | { | |
3076 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3077 | pattern, pattern_len, found_addrp); | |
3078 | } | |
3079 | else | |
3080 | { | |
3081 | /* If a special version of to_search_memory isn't available, use the | |
3082 | simple version. */ | |
c35b1492 | 3083 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3084 | start_addr, search_space_len, |
3085 | pattern, pattern_len, found_addrp); | |
3086 | } | |
3087 | ||
3088 | if (targetdebug) | |
3089 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3090 | ||
3091 | return found; | |
3092 | } | |
3093 | ||
8edfe269 DJ |
3094 | /* Look through the currently pushed targets. If none of them will |
3095 | be able to restart the currently running process, issue an error | |
3096 | message. */ | |
3097 | ||
3098 | void | |
3099 | target_require_runnable (void) | |
3100 | { | |
3101 | struct target_ops *t; | |
3102 | ||
3103 | for (t = target_stack; t != NULL; t = t->beneath) | |
3104 | { | |
3105 | /* If this target knows how to create a new program, then | |
3106 | assume we will still be able to after killing the current | |
3107 | one. Either killing and mourning will not pop T, or else | |
3108 | find_default_run_target will find it again. */ | |
3109 | if (t->to_create_inferior != NULL) | |
3110 | return; | |
3111 | ||
3112 | /* Do not worry about thread_stratum targets that can not | |
3113 | create inferiors. Assume they will be pushed again if | |
3114 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3115 | if (t->to_stratum == thread_stratum |
3116 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3117 | continue; |
3118 | ||
3e43a32a MS |
3119 | error (_("The \"%s\" target does not support \"run\". " |
3120 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3121 | t->to_shortname); |
3122 | } | |
3123 | ||
3124 | /* This function is only called if the target is running. In that | |
3125 | case there should have been a process_stratum target and it | |
c378eb4e | 3126 | should either know how to create inferiors, or not... */ |
9b20d036 | 3127 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3128 | } |
3129 | ||
c906108c SS |
3130 | /* Look through the list of possible targets for a target that can |
3131 | execute a run or attach command without any other data. This is | |
3132 | used to locate the default process stratum. | |
3133 | ||
5f667f2d PA |
3134 | If DO_MESG is not NULL, the result is always valid (error() is |
3135 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3136 | |
3137 | static struct target_ops * | |
fba45db2 | 3138 | find_default_run_target (char *do_mesg) |
c906108c SS |
3139 | { |
3140 | struct target_ops **t; | |
3141 | struct target_ops *runable = NULL; | |
3142 | int count; | |
3143 | ||
3144 | count = 0; | |
3145 | ||
3146 | for (t = target_structs; t < target_structs + target_struct_size; | |
3147 | ++t) | |
3148 | { | |
c5aa993b | 3149 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3150 | { |
3151 | runable = *t; | |
3152 | ++count; | |
3153 | } | |
3154 | } | |
3155 | ||
3156 | if (count != 1) | |
5f667f2d PA |
3157 | { |
3158 | if (do_mesg) | |
3159 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3160 | else | |
3161 | return NULL; | |
3162 | } | |
c906108c SS |
3163 | |
3164 | return runable; | |
3165 | } | |
3166 | ||
3167 | void | |
136d6dae | 3168 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3169 | { |
3170 | struct target_ops *t; | |
3171 | ||
c5aa993b | 3172 | t = find_default_run_target ("attach"); |
136d6dae | 3173 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3174 | return; |
3175 | } | |
3176 | ||
c906108c | 3177 | void |
136d6dae VP |
3178 | find_default_create_inferior (struct target_ops *ops, |
3179 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3180 | int from_tty) |
c906108c SS |
3181 | { |
3182 | struct target_ops *t; | |
3183 | ||
c5aa993b | 3184 | t = find_default_run_target ("run"); |
136d6dae | 3185 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3186 | return; |
3187 | } | |
3188 | ||
2c0b251b | 3189 | static int |
6a109b6b | 3190 | find_default_can_async_p (struct target_ops *ignore) |
b84876c2 PA |
3191 | { |
3192 | struct target_ops *t; | |
3193 | ||
5f667f2d PA |
3194 | /* This may be called before the target is pushed on the stack; |
3195 | look for the default process stratum. If there's none, gdb isn't | |
3196 | configured with a native debugger, and target remote isn't | |
3197 | connected yet. */ | |
3198 | t = find_default_run_target (NULL); | |
6b84065d | 3199 | if (t && t->to_can_async_p != delegate_can_async_p) |
6a109b6b | 3200 | return (t->to_can_async_p) (t); |
b84876c2 PA |
3201 | return 0; |
3202 | } | |
3203 | ||
2c0b251b | 3204 | static int |
6a109b6b | 3205 | find_default_is_async_p (struct target_ops *ignore) |
b84876c2 PA |
3206 | { |
3207 | struct target_ops *t; | |
3208 | ||
5f667f2d PA |
3209 | /* This may be called before the target is pushed on the stack; |
3210 | look for the default process stratum. If there's none, gdb isn't | |
3211 | configured with a native debugger, and target remote isn't | |
3212 | connected yet. */ | |
3213 | t = find_default_run_target (NULL); | |
6b84065d | 3214 | if (t && t->to_is_async_p != delegate_is_async_p) |
6a109b6b | 3215 | return (t->to_is_async_p) (t); |
b84876c2 PA |
3216 | return 0; |
3217 | } | |
3218 | ||
2c0b251b | 3219 | static int |
2a9a2795 | 3220 | find_default_supports_non_stop (struct target_ops *self) |
9908b566 VP |
3221 | { |
3222 | struct target_ops *t; | |
3223 | ||
3224 | t = find_default_run_target (NULL); | |
3225 | if (t && t->to_supports_non_stop) | |
2a9a2795 | 3226 | return (t->to_supports_non_stop) (t); |
9908b566 VP |
3227 | return 0; |
3228 | } | |
3229 | ||
3230 | int | |
2c0b251b | 3231 | target_supports_non_stop (void) |
9908b566 VP |
3232 | { |
3233 | struct target_ops *t; | |
5d502164 | 3234 | |
9908b566 VP |
3235 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3236 | if (t->to_supports_non_stop) | |
2a9a2795 | 3237 | return t->to_supports_non_stop (t); |
9908b566 VP |
3238 | |
3239 | return 0; | |
3240 | } | |
3241 | ||
145b16a9 UW |
3242 | /* Implement the "info proc" command. */ |
3243 | ||
451b7c33 | 3244 | int |
145b16a9 UW |
3245 | target_info_proc (char *args, enum info_proc_what what) |
3246 | { | |
3247 | struct target_ops *t; | |
3248 | ||
3249 | /* If we're already connected to something that can get us OS | |
3250 | related data, use it. Otherwise, try using the native | |
3251 | target. */ | |
3252 | if (current_target.to_stratum >= process_stratum) | |
3253 | t = current_target.beneath; | |
3254 | else | |
3255 | t = find_default_run_target (NULL); | |
3256 | ||
3257 | for (; t != NULL; t = t->beneath) | |
3258 | { | |
3259 | if (t->to_info_proc != NULL) | |
3260 | { | |
3261 | t->to_info_proc (t, args, what); | |
3262 | ||
3263 | if (targetdebug) | |
3264 | fprintf_unfiltered (gdb_stdlog, | |
3265 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3266 | ||
451b7c33 | 3267 | return 1; |
145b16a9 UW |
3268 | } |
3269 | } | |
3270 | ||
451b7c33 | 3271 | return 0; |
145b16a9 UW |
3272 | } |
3273 | ||
03583c20 | 3274 | static int |
2bfc0540 | 3275 | find_default_supports_disable_randomization (struct target_ops *self) |
03583c20 UW |
3276 | { |
3277 | struct target_ops *t; | |
3278 | ||
3279 | t = find_default_run_target (NULL); | |
3280 | if (t && t->to_supports_disable_randomization) | |
2bfc0540 | 3281 | return (t->to_supports_disable_randomization) (t); |
03583c20 UW |
3282 | return 0; |
3283 | } | |
3284 | ||
3285 | int | |
3286 | target_supports_disable_randomization (void) | |
3287 | { | |
3288 | struct target_ops *t; | |
3289 | ||
3290 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3291 | if (t->to_supports_disable_randomization) | |
2bfc0540 | 3292 | return t->to_supports_disable_randomization (t); |
03583c20 UW |
3293 | |
3294 | return 0; | |
3295 | } | |
9908b566 | 3296 | |
07e059b5 VP |
3297 | char * |
3298 | target_get_osdata (const char *type) | |
3299 | { | |
07e059b5 VP |
3300 | struct target_ops *t; |
3301 | ||
739ef7fb PA |
3302 | /* If we're already connected to something that can get us OS |
3303 | related data, use it. Otherwise, try using the native | |
3304 | target. */ | |
3305 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3306 | t = current_target.beneath; |
739ef7fb PA |
3307 | else |
3308 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3309 | |
3310 | if (!t) | |
3311 | return NULL; | |
3312 | ||
6d097e65 | 3313 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3314 | } |
3315 | ||
6c95b8df PA |
3316 | /* Determine the current address space of thread PTID. */ |
3317 | ||
3318 | struct address_space * | |
3319 | target_thread_address_space (ptid_t ptid) | |
3320 | { | |
c0694254 | 3321 | struct address_space *aspace; |
6c95b8df | 3322 | struct inferior *inf; |
c0694254 PA |
3323 | struct target_ops *t; |
3324 | ||
3325 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3326 | { | |
3327 | if (t->to_thread_address_space != NULL) | |
3328 | { | |
3329 | aspace = t->to_thread_address_space (t, ptid); | |
3330 | gdb_assert (aspace); | |
6c95b8df | 3331 | |
c0694254 PA |
3332 | if (targetdebug) |
3333 | fprintf_unfiltered (gdb_stdlog, | |
3334 | "target_thread_address_space (%s) = %d\n", | |
3335 | target_pid_to_str (ptid), | |
3336 | address_space_num (aspace)); | |
3337 | return aspace; | |
3338 | } | |
3339 | } | |
6c95b8df PA |
3340 | |
3341 | /* Fall-back to the "main" address space of the inferior. */ | |
3342 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3343 | ||
3344 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3345 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3346 | _("Can't determine the current " |
3347 | "address space of thread %s\n"), | |
6c95b8df PA |
3348 | target_pid_to_str (ptid)); |
3349 | ||
3350 | return inf->aspace; | |
3351 | } | |
3352 | ||
7313baad UW |
3353 | |
3354 | /* Target file operations. */ | |
3355 | ||
3356 | static struct target_ops * | |
3357 | default_fileio_target (void) | |
3358 | { | |
3359 | /* If we're already connected to something that can perform | |
3360 | file I/O, use it. Otherwise, try using the native target. */ | |
3361 | if (current_target.to_stratum >= process_stratum) | |
3362 | return current_target.beneath; | |
3363 | else | |
3364 | return find_default_run_target ("file I/O"); | |
3365 | } | |
3366 | ||
3367 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3368 | target file descriptor, or -1 if an error occurs (and set | |
3369 | *TARGET_ERRNO). */ | |
3370 | int | |
3371 | target_fileio_open (const char *filename, int flags, int mode, | |
3372 | int *target_errno) | |
3373 | { | |
3374 | struct target_ops *t; | |
3375 | ||
3376 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3377 | { | |
3378 | if (t->to_fileio_open != NULL) | |
3379 | { | |
cd897586 | 3380 | int fd = t->to_fileio_open (t, filename, flags, mode, target_errno); |
7313baad UW |
3381 | |
3382 | if (targetdebug) | |
3383 | fprintf_unfiltered (gdb_stdlog, | |
3384 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3385 | filename, flags, mode, | |
3386 | fd, fd != -1 ? 0 : *target_errno); | |
3387 | return fd; | |
3388 | } | |
3389 | } | |
3390 | ||
3391 | *target_errno = FILEIO_ENOSYS; | |
3392 | return -1; | |
3393 | } | |
3394 | ||
3395 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3396 | Return the number of bytes written, or -1 if an error occurs | |
3397 | (and set *TARGET_ERRNO). */ | |
3398 | int | |
3399 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3400 | ULONGEST offset, int *target_errno) | |
3401 | { | |
3402 | struct target_ops *t; | |
3403 | ||
3404 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3405 | { | |
3406 | if (t->to_fileio_pwrite != NULL) | |
3407 | { | |
0d866f62 | 3408 | int ret = t->to_fileio_pwrite (t, fd, write_buf, len, offset, |
7313baad UW |
3409 | target_errno); |
3410 | ||
3411 | if (targetdebug) | |
3412 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3413 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3414 | "= %d (%d)\n", |
a71b5a38 | 3415 | fd, len, pulongest (offset), |
7313baad UW |
3416 | ret, ret != -1 ? 0 : *target_errno); |
3417 | return ret; | |
3418 | } | |
3419 | } | |
3420 | ||
3421 | *target_errno = FILEIO_ENOSYS; | |
3422 | return -1; | |
3423 | } | |
3424 | ||
3425 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3426 | Return the number of bytes read, or -1 if an error occurs | |
3427 | (and set *TARGET_ERRNO). */ | |
3428 | int | |
3429 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3430 | ULONGEST offset, int *target_errno) | |
3431 | { | |
3432 | struct target_ops *t; | |
3433 | ||
3434 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3435 | { | |
3436 | if (t->to_fileio_pread != NULL) | |
3437 | { | |
a3be983c | 3438 | int ret = t->to_fileio_pread (t, fd, read_buf, len, offset, |
7313baad UW |
3439 | target_errno); |
3440 | ||
3441 | if (targetdebug) | |
3442 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3443 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3444 | "= %d (%d)\n", |
a71b5a38 | 3445 | fd, len, pulongest (offset), |
7313baad UW |
3446 | ret, ret != -1 ? 0 : *target_errno); |
3447 | return ret; | |
3448 | } | |
3449 | } | |
3450 | ||
3451 | *target_errno = FILEIO_ENOSYS; | |
3452 | return -1; | |
3453 | } | |
3454 | ||
3455 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3456 | (and set *TARGET_ERRNO). */ | |
3457 | int | |
3458 | target_fileio_close (int fd, int *target_errno) | |
3459 | { | |
3460 | struct target_ops *t; | |
3461 | ||
3462 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3463 | { | |
3464 | if (t->to_fileio_close != NULL) | |
3465 | { | |
df39ea25 | 3466 | int ret = t->to_fileio_close (t, fd, target_errno); |
7313baad UW |
3467 | |
3468 | if (targetdebug) | |
3469 | fprintf_unfiltered (gdb_stdlog, | |
3470 | "target_fileio_close (%d) = %d (%d)\n", | |
3471 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3472 | return ret; | |
3473 | } | |
3474 | } | |
3475 | ||
3476 | *target_errno = FILEIO_ENOSYS; | |
3477 | return -1; | |
3478 | } | |
3479 | ||
3480 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3481 | occurs (and set *TARGET_ERRNO). */ | |
3482 | int | |
3483 | target_fileio_unlink (const char *filename, int *target_errno) | |
3484 | { | |
3485 | struct target_ops *t; | |
3486 | ||
3487 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3488 | { | |
3489 | if (t->to_fileio_unlink != NULL) | |
3490 | { | |
dbbca37d | 3491 | int ret = t->to_fileio_unlink (t, filename, target_errno); |
7313baad UW |
3492 | |
3493 | if (targetdebug) | |
3494 | fprintf_unfiltered (gdb_stdlog, | |
3495 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3496 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3497 | return ret; | |
3498 | } | |
3499 | } | |
3500 | ||
3501 | *target_errno = FILEIO_ENOSYS; | |
3502 | return -1; | |
3503 | } | |
3504 | ||
b9e7b9c3 UW |
3505 | /* Read value of symbolic link FILENAME on the target. Return a |
3506 | null-terminated string allocated via xmalloc, or NULL if an error | |
3507 | occurs (and set *TARGET_ERRNO). */ | |
3508 | char * | |
3509 | target_fileio_readlink (const char *filename, int *target_errno) | |
3510 | { | |
3511 | struct target_ops *t; | |
3512 | ||
3513 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3514 | { | |
3515 | if (t->to_fileio_readlink != NULL) | |
3516 | { | |
fab5aa7c | 3517 | char *ret = t->to_fileio_readlink (t, filename, target_errno); |
b9e7b9c3 UW |
3518 | |
3519 | if (targetdebug) | |
3520 | fprintf_unfiltered (gdb_stdlog, | |
3521 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3522 | filename, ret? ret : "(nil)", | |
3523 | ret? 0 : *target_errno); | |
3524 | return ret; | |
3525 | } | |
3526 | } | |
3527 | ||
3528 | *target_errno = FILEIO_ENOSYS; | |
3529 | return NULL; | |
3530 | } | |
3531 | ||
7313baad UW |
3532 | static void |
3533 | target_fileio_close_cleanup (void *opaque) | |
3534 | { | |
3535 | int fd = *(int *) opaque; | |
3536 | int target_errno; | |
3537 | ||
3538 | target_fileio_close (fd, &target_errno); | |
3539 | } | |
3540 | ||
3541 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3542 | return the size of the transferred data. PADDING additional bytes are | |
3543 | available in *BUF_P. This is a helper function for | |
3544 | target_fileio_read_alloc; see the declaration of that function for more | |
3545 | information. */ | |
3546 | ||
3547 | static LONGEST | |
3548 | target_fileio_read_alloc_1 (const char *filename, | |
3549 | gdb_byte **buf_p, int padding) | |
3550 | { | |
3551 | struct cleanup *close_cleanup; | |
3552 | size_t buf_alloc, buf_pos; | |
3553 | gdb_byte *buf; | |
3554 | LONGEST n; | |
3555 | int fd; | |
3556 | int target_errno; | |
3557 | ||
3558 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3559 | if (fd == -1) | |
3560 | return -1; | |
3561 | ||
3562 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3563 | ||
3564 | /* Start by reading up to 4K at a time. The target will throttle | |
3565 | this number down if necessary. */ | |
3566 | buf_alloc = 4096; | |
3567 | buf = xmalloc (buf_alloc); | |
3568 | buf_pos = 0; | |
3569 | while (1) | |
3570 | { | |
3571 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3572 | buf_alloc - buf_pos - padding, buf_pos, | |
3573 | &target_errno); | |
3574 | if (n < 0) | |
3575 | { | |
3576 | /* An error occurred. */ | |
3577 | do_cleanups (close_cleanup); | |
3578 | xfree (buf); | |
3579 | return -1; | |
3580 | } | |
3581 | else if (n == 0) | |
3582 | { | |
3583 | /* Read all there was. */ | |
3584 | do_cleanups (close_cleanup); | |
3585 | if (buf_pos == 0) | |
3586 | xfree (buf); | |
3587 | else | |
3588 | *buf_p = buf; | |
3589 | return buf_pos; | |
3590 | } | |
3591 | ||
3592 | buf_pos += n; | |
3593 | ||
3594 | /* If the buffer is filling up, expand it. */ | |
3595 | if (buf_alloc < buf_pos * 2) | |
3596 | { | |
3597 | buf_alloc *= 2; | |
3598 | buf = xrealloc (buf, buf_alloc); | |
3599 | } | |
3600 | ||
3601 | QUIT; | |
3602 | } | |
3603 | } | |
3604 | ||
3605 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3606 | the size of the transferred data. See the declaration in "target.h" | |
3607 | function for more information about the return value. */ | |
3608 | ||
3609 | LONGEST | |
3610 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3611 | { | |
3612 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3613 | } | |
3614 | ||
3615 | /* Read target file FILENAME. The result is NUL-terminated and | |
3616 | returned as a string, allocated using xmalloc. If an error occurs | |
3617 | or the transfer is unsupported, NULL is returned. Empty objects | |
3618 | are returned as allocated but empty strings. A warning is issued | |
3619 | if the result contains any embedded NUL bytes. */ | |
3620 | ||
3621 | char * | |
3622 | target_fileio_read_stralloc (const char *filename) | |
3623 | { | |
39086a0e PA |
3624 | gdb_byte *buffer; |
3625 | char *bufstr; | |
7313baad UW |
3626 | LONGEST i, transferred; |
3627 | ||
39086a0e PA |
3628 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3629 | bufstr = (char *) buffer; | |
7313baad UW |
3630 | |
3631 | if (transferred < 0) | |
3632 | return NULL; | |
3633 | ||
3634 | if (transferred == 0) | |
3635 | return xstrdup (""); | |
3636 | ||
39086a0e | 3637 | bufstr[transferred] = 0; |
7313baad UW |
3638 | |
3639 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3640 | for (i = strlen (bufstr); i < transferred; i++) |
3641 | if (bufstr[i] != 0) | |
7313baad UW |
3642 | { |
3643 | warning (_("target file %s " | |
3644 | "contained unexpected null characters"), | |
3645 | filename); | |
3646 | break; | |
3647 | } | |
3648 | ||
39086a0e | 3649 | return bufstr; |
7313baad UW |
3650 | } |
3651 | ||
3652 | ||
e0d24f8d | 3653 | static int |
31568a15 TT |
3654 | default_region_ok_for_hw_watchpoint (struct target_ops *self, |
3655 | CORE_ADDR addr, int len) | |
e0d24f8d | 3656 | { |
f5656ead | 3657 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3658 | } |
3659 | ||
5009afc5 AS |
3660 | static int |
3661 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3662 | CORE_ADDR addr, | |
3663 | CORE_ADDR start, int length) | |
3664 | { | |
3665 | return addr >= start && addr < start + length; | |
3666 | } | |
3667 | ||
c2250ad1 UW |
3668 | static struct gdbarch * |
3669 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3670 | { | |
f5656ead | 3671 | return target_gdbarch (); |
c2250ad1 UW |
3672 | } |
3673 | ||
c906108c | 3674 | static int |
fba45db2 | 3675 | return_zero (void) |
c906108c SS |
3676 | { |
3677 | return 0; | |
3678 | } | |
3679 | ||
3680 | static int | |
fba45db2 | 3681 | return_one (void) |
c906108c SS |
3682 | { |
3683 | return 1; | |
3684 | } | |
3685 | ||
ccaa32c7 GS |
3686 | static int |
3687 | return_minus_one (void) | |
3688 | { | |
3689 | return -1; | |
3690 | } | |
3691 | ||
1b67eb02 AS |
3692 | static void * |
3693 | return_null (void) | |
3694 | { | |
3695 | return 0; | |
3696 | } | |
3697 | ||
ed9a39eb JM |
3698 | /* |
3699 | * Find the next target down the stack from the specified target. | |
3700 | */ | |
3701 | ||
3702 | struct target_ops * | |
fba45db2 | 3703 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3704 | { |
258b763a | 3705 | return t->beneath; |
ed9a39eb JM |
3706 | } |
3707 | ||
8b06beed TT |
3708 | /* See target.h. */ |
3709 | ||
3710 | struct target_ops * | |
3711 | find_target_at (enum strata stratum) | |
3712 | { | |
3713 | struct target_ops *t; | |
3714 | ||
3715 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3716 | if (t->to_stratum == stratum) | |
3717 | return t; | |
3718 | ||
3719 | return NULL; | |
3720 | } | |
3721 | ||
c906108c SS |
3722 | \f |
3723 | /* The inferior process has died. Long live the inferior! */ | |
3724 | ||
3725 | void | |
fba45db2 | 3726 | generic_mourn_inferior (void) |
c906108c | 3727 | { |
7f9f62ba | 3728 | ptid_t ptid; |
c906108c | 3729 | |
7f9f62ba | 3730 | ptid = inferior_ptid; |
39f77062 | 3731 | inferior_ptid = null_ptid; |
7f9f62ba | 3732 | |
f59f708a PA |
3733 | /* Mark breakpoints uninserted in case something tries to delete a |
3734 | breakpoint while we delete the inferior's threads (which would | |
3735 | fail, since the inferior is long gone). */ | |
3736 | mark_breakpoints_out (); | |
3737 | ||
7f9f62ba PA |
3738 | if (!ptid_equal (ptid, null_ptid)) |
3739 | { | |
3740 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3741 | exit_inferior (pid); |
7f9f62ba PA |
3742 | } |
3743 | ||
f59f708a PA |
3744 | /* Note this wipes step-resume breakpoints, so needs to be done |
3745 | after exit_inferior, which ends up referencing the step-resume | |
3746 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3747 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3748 | |
c906108c SS |
3749 | registers_changed (); |
3750 | ||
c906108c SS |
3751 | reopen_exec_file (); |
3752 | reinit_frame_cache (); | |
3753 | ||
9a4105ab AC |
3754 | if (deprecated_detach_hook) |
3755 | deprecated_detach_hook (); | |
c906108c SS |
3756 | } |
3757 | \f | |
fd0a2a6f MK |
3758 | /* Convert a normal process ID to a string. Returns the string in a |
3759 | static buffer. */ | |
c906108c SS |
3760 | |
3761 | char * | |
39f77062 | 3762 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3763 | { |
fd0a2a6f | 3764 | static char buf[32]; |
c906108c | 3765 | |
5fff8fc0 | 3766 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3767 | return buf; |
3768 | } | |
3769 | ||
2c0b251b | 3770 | static char * |
117de6a9 PA |
3771 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3772 | { | |
3773 | return normal_pid_to_str (ptid); | |
3774 | } | |
3775 | ||
9b4eba8e HZ |
3776 | /* Error-catcher for target_find_memory_regions. */ |
3777 | static int | |
2e73927c TT |
3778 | dummy_find_memory_regions (struct target_ops *self, |
3779 | find_memory_region_ftype ignore1, void *ignore2) | |
be4d1333 | 3780 | { |
9b4eba8e | 3781 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3782 | return 0; |
3783 | } | |
3784 | ||
9b4eba8e HZ |
3785 | /* Error-catcher for target_make_corefile_notes. */ |
3786 | static char * | |
fc6691b2 TT |
3787 | dummy_make_corefile_notes (struct target_ops *self, |
3788 | bfd *ignore1, int *ignore2) | |
be4d1333 | 3789 | { |
9b4eba8e | 3790 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3791 | return NULL; |
3792 | } | |
3793 | ||
6b04bdb7 MS |
3794 | /* Error-catcher for target_get_bookmark. */ |
3795 | static gdb_byte * | |
dd0e2830 | 3796 | dummy_get_bookmark (struct target_ops *self, char *ignore1, int ignore2) |
6b04bdb7 MS |
3797 | { |
3798 | tcomplain (); | |
3799 | return NULL; | |
3800 | } | |
3801 | ||
3802 | /* Error-catcher for target_goto_bookmark. */ | |
3803 | static void | |
3c80fb48 | 3804 | dummy_goto_bookmark (struct target_ops *self, gdb_byte *ignore, int from_tty) |
6b04bdb7 MS |
3805 | { |
3806 | tcomplain (); | |
3807 | } | |
3808 | ||
c906108c SS |
3809 | /* Set up the handful of non-empty slots needed by the dummy target |
3810 | vector. */ | |
3811 | ||
3812 | static void | |
fba45db2 | 3813 | init_dummy_target (void) |
c906108c SS |
3814 | { |
3815 | dummy_target.to_shortname = "None"; | |
3816 | dummy_target.to_longname = "None"; | |
3817 | dummy_target.to_doc = ""; | |
3818 | dummy_target.to_attach = find_default_attach; | |
136d6dae | 3819 | dummy_target.to_detach = |
52554a0e | 3820 | (void (*)(struct target_ops *, const char *, int))target_ignore; |
c906108c | 3821 | dummy_target.to_create_inferior = find_default_create_inferior; |
9908b566 | 3822 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3823 | dummy_target.to_supports_disable_randomization |
3824 | = find_default_supports_disable_randomization; | |
117de6a9 | 3825 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3826 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3827 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3828 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3829 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3830 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
c35b1492 PA |
3831 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3832 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3833 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3834 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3835 | dummy_target.to_has_execution |
3836 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
c906108c | 3837 | dummy_target.to_magic = OPS_MAGIC; |
1101cb7b TT |
3838 | |
3839 | install_dummy_methods (&dummy_target); | |
c906108c | 3840 | } |
c906108c | 3841 | \f |
c906108c | 3842 | static void |
fba45db2 | 3843 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3844 | { |
3845 | debug_target.to_open (args, from_tty); | |
3846 | ||
96baa820 | 3847 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3848 | } |
3849 | ||
f1c07ab0 | 3850 | void |
460014f5 | 3851 | target_close (struct target_ops *targ) |
f1c07ab0 | 3852 | { |
7fdc1521 TT |
3853 | gdb_assert (!target_is_pushed (targ)); |
3854 | ||
f1c07ab0 | 3855 | if (targ->to_xclose != NULL) |
460014f5 | 3856 | targ->to_xclose (targ); |
f1c07ab0 | 3857 | else if (targ->to_close != NULL) |
de90e03d | 3858 | targ->to_close (targ); |
947b8855 PA |
3859 | |
3860 | if (targetdebug) | |
460014f5 | 3861 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3862 | } |
3863 | ||
136d6dae VP |
3864 | void |
3865 | target_attach (char *args, int from_tty) | |
3866 | { | |
3867 | struct target_ops *t; | |
5d502164 | 3868 | |
136d6dae VP |
3869 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3870 | { | |
3871 | if (t->to_attach != NULL) | |
3872 | { | |
3873 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3874 | if (targetdebug) |
3875 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3876 | args, from_tty); | |
136d6dae VP |
3877 | return; |
3878 | } | |
3879 | } | |
3880 | ||
3881 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3882 | _("could not find a target to attach")); |
136d6dae VP |
3883 | } |
3884 | ||
28439f5e PA |
3885 | int |
3886 | target_thread_alive (ptid_t ptid) | |
c906108c | 3887 | { |
28439f5e | 3888 | struct target_ops *t; |
5d502164 | 3889 | |
28439f5e PA |
3890 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3891 | { | |
3892 | if (t->to_thread_alive != NULL) | |
3893 | { | |
3894 | int retval; | |
c906108c | 3895 | |
28439f5e PA |
3896 | retval = t->to_thread_alive (t, ptid); |
3897 | if (targetdebug) | |
3898 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3899 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3900 | |
3901 | return retval; | |
3902 | } | |
3903 | } | |
3904 | ||
3905 | return 0; | |
3906 | } | |
3907 | ||
3908 | void | |
3909 | target_find_new_threads (void) | |
3910 | { | |
3911 | struct target_ops *t; | |
5d502164 | 3912 | |
28439f5e PA |
3913 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3914 | { | |
3915 | if (t->to_find_new_threads != NULL) | |
3916 | { | |
3917 | t->to_find_new_threads (t); | |
3918 | if (targetdebug) | |
3919 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3920 | ||
3921 | return; | |
3922 | } | |
3923 | } | |
c906108c SS |
3924 | } |
3925 | ||
d914c394 SS |
3926 | void |
3927 | target_stop (ptid_t ptid) | |
3928 | { | |
3929 | if (!may_stop) | |
3930 | { | |
3931 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3932 | return; | |
3933 | } | |
3934 | ||
1eab8a48 | 3935 | (*current_target.to_stop) (¤t_target, ptid); |
d914c394 SS |
3936 | } |
3937 | ||
c906108c | 3938 | static void |
f045800c | 3939 | debug_to_post_attach (struct target_ops *self, int pid) |
c906108c | 3940 | { |
f045800c | 3941 | debug_target.to_post_attach (&debug_target, pid); |
c906108c | 3942 | |
28439f5e | 3943 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3944 | } |
3945 | ||
09826ec5 PA |
3946 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3947 | result. The LIST incoming argument is released. */ | |
3948 | ||
3949 | static char * | |
3950 | str_comma_list_concat_elem (char *list, const char *elem) | |
3951 | { | |
3952 | if (list == NULL) | |
3953 | return xstrdup (elem); | |
3954 | else | |
3955 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3956 | } | |
3957 | ||
3958 | /* Helper for target_options_to_string. If OPT is present in | |
3959 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3960 | Returns the new resulting string. OPT is removed from | |
3961 | TARGET_OPTIONS. */ | |
3962 | ||
3963 | static char * | |
3964 | do_option (int *target_options, char *ret, | |
3965 | int opt, char *opt_str) | |
3966 | { | |
3967 | if ((*target_options & opt) != 0) | |
3968 | { | |
3969 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3970 | *target_options &= ~opt; | |
3971 | } | |
3972 | ||
3973 | return ret; | |
3974 | } | |
3975 | ||
3976 | char * | |
3977 | target_options_to_string (int target_options) | |
3978 | { | |
3979 | char *ret = NULL; | |
3980 | ||
3981 | #define DO_TARG_OPTION(OPT) \ | |
3982 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3983 | ||
3984 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3985 | ||
3986 | if (target_options != 0) | |
3987 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3988 | ||
3989 | if (ret == NULL) | |
3990 | ret = xstrdup (""); | |
3991 | return ret; | |
3992 | } | |
3993 | ||
bf0c5130 | 3994 | static void |
56be3814 UW |
3995 | debug_print_register (const char * func, |
3996 | struct regcache *regcache, int regno) | |
bf0c5130 | 3997 | { |
f8d29908 | 3998 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3999 | |
bf0c5130 | 4000 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 4001 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
4002 | && gdbarch_register_name (gdbarch, regno) != NULL |
4003 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
4004 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
4005 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
4006 | else |
4007 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 4008 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 4009 | { |
e17a4113 | 4010 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 4011 | int i, size = register_size (gdbarch, regno); |
e362b510 | 4012 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 4013 | |
0ff58721 | 4014 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 4015 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 4016 | for (i = 0; i < size; i++) |
bf0c5130 AC |
4017 | { |
4018 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
4019 | } | |
81c4a259 | 4020 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 4021 | { |
e17a4113 | 4022 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 4023 | |
0b1553bc UW |
4024 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
4025 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
4026 | } |
4027 | } | |
4028 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4029 | } | |
4030 | ||
28439f5e PA |
4031 | void |
4032 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 4033 | { |
28439f5e | 4034 | struct target_ops *t; |
5d502164 | 4035 | |
28439f5e PA |
4036 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
4037 | { | |
4038 | if (t->to_fetch_registers != NULL) | |
4039 | { | |
4040 | t->to_fetch_registers (t, regcache, regno); | |
4041 | if (targetdebug) | |
4042 | debug_print_register ("target_fetch_registers", regcache, regno); | |
4043 | return; | |
4044 | } | |
4045 | } | |
c906108c SS |
4046 | } |
4047 | ||
28439f5e PA |
4048 | void |
4049 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 4050 | { |
28439f5e | 4051 | struct target_ops *t; |
5d502164 | 4052 | |
d914c394 SS |
4053 | if (!may_write_registers) |
4054 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
4055 | ||
6b84065d TT |
4056 | current_target.to_store_registers (¤t_target, regcache, regno); |
4057 | if (targetdebug) | |
28439f5e | 4058 | { |
6b84065d | 4059 | debug_print_register ("target_store_registers", regcache, regno); |
28439f5e | 4060 | } |
c906108c SS |
4061 | } |
4062 | ||
dc146f7c VP |
4063 | int |
4064 | target_core_of_thread (ptid_t ptid) | |
4065 | { | |
4066 | struct target_ops *t; | |
4067 | ||
4068 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4069 | { | |
4070 | if (t->to_core_of_thread != NULL) | |
4071 | { | |
4072 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 4073 | |
dc146f7c | 4074 | if (targetdebug) |
3e43a32a MS |
4075 | fprintf_unfiltered (gdb_stdlog, |
4076 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 4077 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
4078 | return retval; |
4079 | } | |
4080 | } | |
4081 | ||
4082 | return -1; | |
4083 | } | |
4084 | ||
4a5e7a5b PA |
4085 | int |
4086 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4087 | { | |
4088 | struct target_ops *t; | |
4089 | ||
4090 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4091 | { | |
4092 | if (t->to_verify_memory != NULL) | |
4093 | { | |
4094 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4095 | |
4a5e7a5b | 4096 | if (targetdebug) |
3e43a32a MS |
4097 | fprintf_unfiltered (gdb_stdlog, |
4098 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4099 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4100 | pulongest (size), |
4101 | retval); | |
4102 | return retval; | |
4103 | } | |
4104 | } | |
4105 | ||
4106 | tcomplain (); | |
4107 | } | |
4108 | ||
9c06b0b4 TJB |
4109 | /* The documentation for this function is in its prototype declaration in |
4110 | target.h. */ | |
4111 | ||
4112 | int | |
4113 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4114 | { | |
4115 | struct target_ops *t; | |
4116 | ||
4117 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4118 | if (t->to_insert_mask_watchpoint != NULL) | |
4119 | { | |
4120 | int ret; | |
4121 | ||
4122 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4123 | ||
4124 | if (targetdebug) | |
4125 | fprintf_unfiltered (gdb_stdlog, "\ | |
4126 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4127 | core_addr_to_string (addr), | |
4128 | core_addr_to_string (mask), rw, ret); | |
4129 | ||
4130 | return ret; | |
4131 | } | |
4132 | ||
4133 | return 1; | |
4134 | } | |
4135 | ||
4136 | /* The documentation for this function is in its prototype declaration in | |
4137 | target.h. */ | |
4138 | ||
4139 | int | |
4140 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4141 | { | |
4142 | struct target_ops *t; | |
4143 | ||
4144 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4145 | if (t->to_remove_mask_watchpoint != NULL) | |
4146 | { | |
4147 | int ret; | |
4148 | ||
4149 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4150 | ||
4151 | if (targetdebug) | |
4152 | fprintf_unfiltered (gdb_stdlog, "\ | |
4153 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4154 | core_addr_to_string (addr), | |
4155 | core_addr_to_string (mask), rw, ret); | |
4156 | ||
4157 | return ret; | |
4158 | } | |
4159 | ||
4160 | return 1; | |
4161 | } | |
4162 | ||
4163 | /* The documentation for this function is in its prototype declaration | |
4164 | in target.h. */ | |
4165 | ||
4166 | int | |
4167 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4168 | { | |
4169 | struct target_ops *t; | |
4170 | ||
4171 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4172 | if (t->to_masked_watch_num_registers != NULL) | |
4173 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4174 | ||
4175 | return -1; | |
4176 | } | |
4177 | ||
f1310107 TJB |
4178 | /* The documentation for this function is in its prototype declaration |
4179 | in target.h. */ | |
4180 | ||
4181 | int | |
4182 | target_ranged_break_num_registers (void) | |
4183 | { | |
4184 | struct target_ops *t; | |
4185 | ||
4186 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4187 | if (t->to_ranged_break_num_registers != NULL) | |
4188 | return t->to_ranged_break_num_registers (t); | |
4189 | ||
4190 | return -1; | |
4191 | } | |
4192 | ||
02d27625 MM |
4193 | /* See target.h. */ |
4194 | ||
02d27625 MM |
4195 | struct btrace_target_info * |
4196 | target_enable_btrace (ptid_t ptid) | |
4197 | { | |
4198 | struct target_ops *t; | |
4199 | ||
4200 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4201 | if (t->to_enable_btrace != NULL) | |
e3c49f88 | 4202 | return t->to_enable_btrace (t, ptid); |
02d27625 MM |
4203 | |
4204 | tcomplain (); | |
4205 | return NULL; | |
4206 | } | |
4207 | ||
4208 | /* See target.h. */ | |
4209 | ||
4210 | void | |
4211 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4212 | { | |
4213 | struct target_ops *t; | |
4214 | ||
4215 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4216 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 | 4217 | { |
25e95349 | 4218 | t->to_disable_btrace (t, btinfo); |
d92f7ee3 SDJ |
4219 | return; |
4220 | } | |
02d27625 MM |
4221 | |
4222 | tcomplain (); | |
4223 | } | |
4224 | ||
4225 | /* See target.h. */ | |
4226 | ||
4227 | void | |
4228 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4229 | { | |
4230 | struct target_ops *t; | |
4231 | ||
4232 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4233 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 | 4234 | { |
1777056d | 4235 | t->to_teardown_btrace (t, btinfo); |
d92f7ee3 SDJ |
4236 | return; |
4237 | } | |
02d27625 MM |
4238 | |
4239 | tcomplain (); | |
4240 | } | |
4241 | ||
4242 | /* See target.h. */ | |
4243 | ||
969c39fb MM |
4244 | enum btrace_error |
4245 | target_read_btrace (VEC (btrace_block_s) **btrace, | |
4246 | struct btrace_target_info *btinfo, | |
02d27625 MM |
4247 | enum btrace_read_type type) |
4248 | { | |
4249 | struct target_ops *t; | |
4250 | ||
4251 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4252 | if (t->to_read_btrace != NULL) | |
39c49f83 | 4253 | return t->to_read_btrace (t, btrace, btinfo, type); |
02d27625 MM |
4254 | |
4255 | tcomplain (); | |
969c39fb | 4256 | return BTRACE_ERR_NOT_SUPPORTED; |
02d27625 MM |
4257 | } |
4258 | ||
d02ed0bb MM |
4259 | /* See target.h. */ |
4260 | ||
7c1687a9 MM |
4261 | void |
4262 | target_stop_recording (void) | |
4263 | { | |
4264 | struct target_ops *t; | |
4265 | ||
4266 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4267 | if (t->to_stop_recording != NULL) | |
4268 | { | |
c6cd7c02 | 4269 | t->to_stop_recording (t); |
7c1687a9 MM |
4270 | return; |
4271 | } | |
4272 | ||
4273 | /* This is optional. */ | |
4274 | } | |
4275 | ||
4276 | /* See target.h. */ | |
4277 | ||
d02ed0bb MM |
4278 | void |
4279 | target_info_record (void) | |
4280 | { | |
4281 | struct target_ops *t; | |
4282 | ||
4283 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4284 | if (t->to_info_record != NULL) | |
4285 | { | |
4286 | t->to_info_record (); | |
4287 | return; | |
4288 | } | |
4289 | ||
4290 | tcomplain (); | |
4291 | } | |
4292 | ||
4293 | /* See target.h. */ | |
4294 | ||
4295 | void | |
85e1311a | 4296 | target_save_record (const char *filename) |
d02ed0bb MM |
4297 | { |
4298 | struct target_ops *t; | |
4299 | ||
4300 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4301 | if (t->to_save_record != NULL) | |
4302 | { | |
4303 | t->to_save_record (filename); | |
4304 | return; | |
4305 | } | |
4306 | ||
4307 | tcomplain (); | |
4308 | } | |
4309 | ||
4310 | /* See target.h. */ | |
4311 | ||
4312 | int | |
4313 | target_supports_delete_record (void) | |
4314 | { | |
4315 | struct target_ops *t; | |
4316 | ||
4317 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4318 | if (t->to_delete_record != NULL) | |
4319 | return 1; | |
4320 | ||
4321 | return 0; | |
4322 | } | |
4323 | ||
4324 | /* See target.h. */ | |
4325 | ||
4326 | void | |
4327 | target_delete_record (void) | |
4328 | { | |
4329 | struct target_ops *t; | |
4330 | ||
4331 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4332 | if (t->to_delete_record != NULL) | |
4333 | { | |
4334 | t->to_delete_record (); | |
4335 | return; | |
4336 | } | |
4337 | ||
4338 | tcomplain (); | |
4339 | } | |
4340 | ||
4341 | /* See target.h. */ | |
4342 | ||
4343 | int | |
4344 | target_record_is_replaying (void) | |
4345 | { | |
4346 | struct target_ops *t; | |
4347 | ||
4348 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4349 | if (t->to_record_is_replaying != NULL) | |
4350 | return t->to_record_is_replaying (); | |
4351 | ||
4352 | return 0; | |
4353 | } | |
4354 | ||
4355 | /* See target.h. */ | |
4356 | ||
4357 | void | |
4358 | target_goto_record_begin (void) | |
4359 | { | |
4360 | struct target_ops *t; | |
4361 | ||
4362 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4363 | if (t->to_goto_record_begin != NULL) | |
4364 | { | |
4365 | t->to_goto_record_begin (); | |
4366 | return; | |
4367 | } | |
4368 | ||
4369 | tcomplain (); | |
4370 | } | |
4371 | ||
4372 | /* See target.h. */ | |
4373 | ||
4374 | void | |
4375 | target_goto_record_end (void) | |
4376 | { | |
4377 | struct target_ops *t; | |
4378 | ||
4379 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4380 | if (t->to_goto_record_end != NULL) | |
4381 | { | |
4382 | t->to_goto_record_end (); | |
4383 | return; | |
4384 | } | |
4385 | ||
4386 | tcomplain (); | |
4387 | } | |
4388 | ||
4389 | /* See target.h. */ | |
4390 | ||
4391 | void | |
4392 | target_goto_record (ULONGEST insn) | |
4393 | { | |
4394 | struct target_ops *t; | |
4395 | ||
4396 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4397 | if (t->to_goto_record != NULL) | |
4398 | { | |
4399 | t->to_goto_record (insn); | |
4400 | return; | |
4401 | } | |
4402 | ||
4403 | tcomplain (); | |
4404 | } | |
4405 | ||
67c86d06 MM |
4406 | /* See target.h. */ |
4407 | ||
4408 | void | |
4409 | target_insn_history (int size, int flags) | |
4410 | { | |
4411 | struct target_ops *t; | |
4412 | ||
4413 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4414 | if (t->to_insn_history != NULL) | |
4415 | { | |
4416 | t->to_insn_history (size, flags); | |
4417 | return; | |
4418 | } | |
4419 | ||
4420 | tcomplain (); | |
4421 | } | |
4422 | ||
4423 | /* See target.h. */ | |
4424 | ||
4425 | void | |
4426 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4427 | { | |
4428 | struct target_ops *t; | |
4429 | ||
4430 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4431 | if (t->to_insn_history_from != NULL) | |
4432 | { | |
4433 | t->to_insn_history_from (from, size, flags); | |
4434 | return; | |
4435 | } | |
4436 | ||
4437 | tcomplain (); | |
4438 | } | |
4439 | ||
4440 | /* See target.h. */ | |
4441 | ||
4442 | void | |
4443 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4444 | { | |
4445 | struct target_ops *t; | |
4446 | ||
4447 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4448 | if (t->to_insn_history_range != NULL) | |
4449 | { | |
4450 | t->to_insn_history_range (begin, end, flags); | |
4451 | return; | |
4452 | } | |
4453 | ||
4454 | tcomplain (); | |
4455 | } | |
4456 | ||
15984c13 MM |
4457 | /* See target.h. */ |
4458 | ||
4459 | void | |
4460 | target_call_history (int size, int flags) | |
4461 | { | |
4462 | struct target_ops *t; | |
4463 | ||
4464 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4465 | if (t->to_call_history != NULL) | |
4466 | { | |
4467 | t->to_call_history (size, flags); | |
4468 | return; | |
4469 | } | |
4470 | ||
4471 | tcomplain (); | |
4472 | } | |
4473 | ||
4474 | /* See target.h. */ | |
4475 | ||
4476 | void | |
4477 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4478 | { | |
4479 | struct target_ops *t; | |
4480 | ||
4481 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4482 | if (t->to_call_history_from != NULL) | |
4483 | { | |
4484 | t->to_call_history_from (begin, size, flags); | |
4485 | return; | |
4486 | } | |
4487 | ||
4488 | tcomplain (); | |
4489 | } | |
4490 | ||
4491 | /* See target.h. */ | |
4492 | ||
4493 | void | |
4494 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4495 | { | |
4496 | struct target_ops *t; | |
4497 | ||
4498 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4499 | if (t->to_call_history_range != NULL) | |
4500 | { | |
4501 | t->to_call_history_range (begin, end, flags); | |
4502 | return; | |
4503 | } | |
4504 | ||
4505 | tcomplain (); | |
4506 | } | |
4507 | ||
c906108c | 4508 | static void |
f32dbf8c | 4509 | debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
c906108c | 4510 | { |
f32dbf8c | 4511 | debug_target.to_prepare_to_store (&debug_target, regcache); |
c906108c | 4512 | |
96baa820 | 4513 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4514 | } |
4515 | ||
ea001bdc MM |
4516 | /* See target.h. */ |
4517 | ||
4518 | const struct frame_unwind * | |
4519 | target_get_unwinder (void) | |
4520 | { | |
4521 | struct target_ops *t; | |
4522 | ||
4523 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4524 | if (t->to_get_unwinder != NULL) | |
4525 | return t->to_get_unwinder; | |
4526 | ||
4527 | return NULL; | |
4528 | } | |
4529 | ||
4530 | /* See target.h. */ | |
4531 | ||
4532 | const struct frame_unwind * | |
4533 | target_get_tailcall_unwinder (void) | |
4534 | { | |
4535 | struct target_ops *t; | |
4536 | ||
4537 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4538 | if (t->to_get_tailcall_unwinder != NULL) | |
4539 | return t->to_get_tailcall_unwinder; | |
4540 | ||
4541 | return NULL; | |
4542 | } | |
4543 | ||
118e6252 MM |
4544 | /* See target.h. */ |
4545 | ||
4546 | CORE_ADDR | |
4547 | forward_target_decr_pc_after_break (struct target_ops *ops, | |
4548 | struct gdbarch *gdbarch) | |
4549 | { | |
4550 | for (; ops != NULL; ops = ops->beneath) | |
4551 | if (ops->to_decr_pc_after_break != NULL) | |
4552 | return ops->to_decr_pc_after_break (ops, gdbarch); | |
4553 | ||
4554 | return gdbarch_decr_pc_after_break (gdbarch); | |
4555 | } | |
4556 | ||
4557 | /* See target.h. */ | |
4558 | ||
4559 | CORE_ADDR | |
4560 | target_decr_pc_after_break (struct gdbarch *gdbarch) | |
4561 | { | |
4562 | return forward_target_decr_pc_after_break (current_target.beneath, gdbarch); | |
4563 | } | |
4564 | ||
c906108c | 4565 | static int |
961cb7b5 | 4566 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4567 | int write, struct mem_attrib *attrib, |
4568 | struct target_ops *target) | |
c906108c SS |
4569 | { |
4570 | int retval; | |
4571 | ||
c8e73a31 AC |
4572 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4573 | attrib, target); | |
c906108c | 4574 | |
96baa820 | 4575 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4576 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4577 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4578 | write ? "write" : "read", retval); |
c906108c | 4579 | |
c906108c SS |
4580 | if (retval > 0) |
4581 | { | |
4582 | int i; | |
4583 | ||
96baa820 | 4584 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4585 | for (i = 0; i < retval; i++) |
4586 | { | |
53b71562 | 4587 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4588 | { |
4589 | if (targetdebug < 2 && i > 0) | |
4590 | { | |
4591 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4592 | break; | |
4593 | } | |
4594 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4595 | } | |
2bc416ba | 4596 | |
96baa820 | 4597 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4598 | } |
4599 | } | |
4600 | ||
96baa820 | 4601 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4602 | |
4603 | return retval; | |
4604 | } | |
4605 | ||
4606 | static void | |
fba45db2 | 4607 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4608 | { |
4609 | debug_target.to_files_info (target); | |
4610 | ||
96baa820 | 4611 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4612 | } |
4613 | ||
4614 | static int | |
3db08215 | 4615 | debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4616 | struct bp_target_info *bp_tgt) |
c906108c SS |
4617 | { |
4618 | int retval; | |
4619 | ||
6b84065d | 4620 | retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4621 | |
96baa820 | 4622 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4623 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4624 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4625 | (unsigned long) retval); |
c906108c SS |
4626 | return retval; |
4627 | } | |
4628 | ||
4629 | static int | |
3db08215 | 4630 | debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 4631 | struct bp_target_info *bp_tgt) |
c906108c SS |
4632 | { |
4633 | int retval; | |
4634 | ||
6b84065d | 4635 | retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt); |
c906108c | 4636 | |
96baa820 | 4637 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4638 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4639 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4640 | (unsigned long) retval); |
c906108c SS |
4641 | return retval; |
4642 | } | |
4643 | ||
ccaa32c7 | 4644 | static int |
5461485a TT |
4645 | debug_to_can_use_hw_breakpoint (struct target_ops *self, |
4646 | int type, int cnt, int from_tty) | |
ccaa32c7 GS |
4647 | { |
4648 | int retval; | |
4649 | ||
5461485a TT |
4650 | retval = debug_target.to_can_use_hw_breakpoint (&debug_target, |
4651 | type, cnt, from_tty); | |
ccaa32c7 GS |
4652 | |
4653 | fprintf_unfiltered (gdb_stdlog, | |
4654 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4655 | (unsigned long) type, | |
4656 | (unsigned long) cnt, | |
4657 | (unsigned long) from_tty, | |
4658 | (unsigned long) retval); | |
4659 | return retval; | |
4660 | } | |
4661 | ||
e0d24f8d | 4662 | static int |
31568a15 TT |
4663 | debug_to_region_ok_for_hw_watchpoint (struct target_ops *self, |
4664 | CORE_ADDR addr, int len) | |
e0d24f8d WZ |
4665 | { |
4666 | CORE_ADDR retval; | |
4667 | ||
31568a15 TT |
4668 | retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target, |
4669 | addr, len); | |
e0d24f8d WZ |
4670 | |
4671 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4672 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4673 | core_addr_to_string (addr), (unsigned long) len, | |
4674 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4675 | return retval; |
4676 | } | |
4677 | ||
0cf6dd15 | 4678 | static int |
c3a5ff89 TT |
4679 | debug_to_can_accel_watchpoint_condition (struct target_ops *self, |
4680 | CORE_ADDR addr, int len, int rw, | |
0cf6dd15 TJB |
4681 | struct expression *cond) |
4682 | { | |
4683 | int retval; | |
4684 | ||
c3a5ff89 TT |
4685 | retval = debug_target.to_can_accel_watchpoint_condition (&debug_target, |
4686 | addr, len, | |
3e43a32a | 4687 | rw, cond); |
0cf6dd15 TJB |
4688 | |
4689 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4690 | "target_can_accel_watchpoint_condition " |
4691 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4692 | core_addr_to_string (addr), len, rw, |
4693 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4694 | return retval; |
4695 | } | |
4696 | ||
ccaa32c7 | 4697 | static int |
6a109b6b | 4698 | debug_to_stopped_by_watchpoint (struct target_ops *ops) |
ccaa32c7 GS |
4699 | { |
4700 | int retval; | |
4701 | ||
6a109b6b | 4702 | retval = debug_target.to_stopped_by_watchpoint (&debug_target); |
ccaa32c7 GS |
4703 | |
4704 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4705 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4706 | (unsigned long) retval); |
4707 | return retval; | |
4708 | } | |
4709 | ||
4aa7a7f5 JJ |
4710 | static int |
4711 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4712 | { |
4aa7a7f5 | 4713 | int retval; |
ccaa32c7 | 4714 | |
4aa7a7f5 | 4715 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4716 | |
4717 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4718 | "target_stopped_data_address ([%s]) = %ld\n", |
4719 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4720 | (unsigned long)retval); |
ccaa32c7 GS |
4721 | return retval; |
4722 | } | |
4723 | ||
5009afc5 AS |
4724 | static int |
4725 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4726 | CORE_ADDR addr, | |
4727 | CORE_ADDR start, int length) | |
4728 | { | |
4729 | int retval; | |
4730 | ||
4731 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4732 | start, length); | |
4733 | ||
4734 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4735 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4736 | core_addr_to_string (addr), core_addr_to_string (start), | |
4737 | length, retval); | |
5009afc5 AS |
4738 | return retval; |
4739 | } | |
4740 | ||
ccaa32c7 | 4741 | static int |
23a26771 TT |
4742 | debug_to_insert_hw_breakpoint (struct target_ops *self, |
4743 | struct gdbarch *gdbarch, | |
a6d9a66e | 4744 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4745 | { |
4746 | int retval; | |
4747 | ||
23a26771 TT |
4748 | retval = debug_target.to_insert_hw_breakpoint (&debug_target, |
4749 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4750 | |
4751 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4752 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4753 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4754 | (unsigned long) retval); |
4755 | return retval; | |
4756 | } | |
4757 | ||
4758 | static int | |
a64dc96c TT |
4759 | debug_to_remove_hw_breakpoint (struct target_ops *self, |
4760 | struct gdbarch *gdbarch, | |
a6d9a66e | 4761 | struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
4762 | { |
4763 | int retval; | |
4764 | ||
a64dc96c TT |
4765 | retval = debug_target.to_remove_hw_breakpoint (&debug_target, |
4766 | gdbarch, bp_tgt); | |
ccaa32c7 GS |
4767 | |
4768 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4769 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4770 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4771 | (unsigned long) retval); |
4772 | return retval; | |
4773 | } | |
4774 | ||
4775 | static int | |
7bb99c53 TT |
4776 | debug_to_insert_watchpoint (struct target_ops *self, |
4777 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4778 | struct expression *cond) |
ccaa32c7 GS |
4779 | { |
4780 | int retval; | |
4781 | ||
7bb99c53 TT |
4782 | retval = debug_target.to_insert_watchpoint (&debug_target, |
4783 | addr, len, type, cond); | |
ccaa32c7 GS |
4784 | |
4785 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4786 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4787 | core_addr_to_string (addr), len, type, | |
4788 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4789 | return retval; |
4790 | } | |
4791 | ||
4792 | static int | |
11b5219a TT |
4793 | debug_to_remove_watchpoint (struct target_ops *self, |
4794 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 4795 | struct expression *cond) |
ccaa32c7 GS |
4796 | { |
4797 | int retval; | |
4798 | ||
11b5219a TT |
4799 | retval = debug_target.to_remove_watchpoint (&debug_target, |
4800 | addr, len, type, cond); | |
ccaa32c7 GS |
4801 | |
4802 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4803 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4804 | core_addr_to_string (addr), len, type, | |
4805 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4806 | return retval; |
4807 | } | |
4808 | ||
c906108c | 4809 | static void |
c42bf286 | 4810 | debug_to_terminal_init (struct target_ops *self) |
c906108c | 4811 | { |
c42bf286 | 4812 | debug_target.to_terminal_init (&debug_target); |
c906108c | 4813 | |
96baa820 | 4814 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4815 | } |
4816 | ||
4817 | static void | |
d2f640d4 | 4818 | debug_to_terminal_inferior (struct target_ops *self) |
c906108c | 4819 | { |
d2f640d4 | 4820 | debug_target.to_terminal_inferior (&debug_target); |
c906108c | 4821 | |
96baa820 | 4822 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4823 | } |
4824 | ||
4825 | static void | |
2e1e1a19 | 4826 | debug_to_terminal_ours_for_output (struct target_ops *self) |
c906108c | 4827 | { |
2e1e1a19 | 4828 | debug_target.to_terminal_ours_for_output (&debug_target); |
c906108c | 4829 | |
96baa820 | 4830 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4831 | } |
4832 | ||
4833 | static void | |
e3594fd1 | 4834 | debug_to_terminal_ours (struct target_ops *self) |
c906108c | 4835 | { |
e3594fd1 | 4836 | debug_target.to_terminal_ours (&debug_target); |
c906108c | 4837 | |
96baa820 | 4838 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4839 | } |
4840 | ||
a790ad35 | 4841 | static void |
ae3bd431 | 4842 | debug_to_terminal_save_ours (struct target_ops *self) |
a790ad35 | 4843 | { |
ae3bd431 | 4844 | debug_target.to_terminal_save_ours (&debug_target); |
a790ad35 SC |
4845 | |
4846 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4847 | } | |
4848 | ||
c906108c | 4849 | static void |
0a4f40a2 TT |
4850 | debug_to_terminal_info (struct target_ops *self, |
4851 | const char *arg, int from_tty) | |
c906108c | 4852 | { |
0a4f40a2 | 4853 | debug_target.to_terminal_info (&debug_target, arg, from_tty); |
c906108c | 4854 | |
96baa820 | 4855 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4856 | from_tty); |
4857 | } | |
4858 | ||
c906108c | 4859 | static void |
71a9f134 | 4860 | debug_to_load (struct target_ops *self, char *args, int from_tty) |
c906108c | 4861 | { |
71a9f134 | 4862 | debug_target.to_load (&debug_target, args, from_tty); |
c906108c | 4863 | |
96baa820 | 4864 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4865 | } |
4866 | ||
c906108c | 4867 | static void |
2e97a79e | 4868 | debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid) |
c906108c | 4869 | { |
2e97a79e | 4870 | debug_target.to_post_startup_inferior (&debug_target, ptid); |
c906108c | 4871 | |
96baa820 | 4872 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4873 | ptid_get_pid (ptid)); |
c906108c SS |
4874 | } |
4875 | ||
77b06cd7 | 4876 | static int |
a863b201 | 4877 | debug_to_insert_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4878 | { |
77b06cd7 TJB |
4879 | int retval; |
4880 | ||
a863b201 | 4881 | retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid); |
77b06cd7 TJB |
4882 | |
4883 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4884 | pid, retval); | |
c906108c | 4885 | |
77b06cd7 | 4886 | return retval; |
c906108c SS |
4887 | } |
4888 | ||
4889 | static int | |
973fc227 | 4890 | debug_to_remove_fork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4891 | { |
c5aa993b | 4892 | int retval; |
c906108c | 4893 | |
973fc227 | 4894 | retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid); |
c906108c | 4895 | |
96baa820 | 4896 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4897 | pid, retval); |
c906108c SS |
4898 | |
4899 | return retval; | |
4900 | } | |
4901 | ||
77b06cd7 | 4902 | static int |
3ecc7da0 | 4903 | debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4904 | { |
77b06cd7 TJB |
4905 | int retval; |
4906 | ||
3ecc7da0 | 4907 | retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid); |
c906108c | 4908 | |
77b06cd7 TJB |
4909 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4910 | pid, retval); | |
4911 | ||
4912 | return retval; | |
c906108c SS |
4913 | } |
4914 | ||
4915 | static int | |
e98cf0cd | 4916 | debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid) |
c906108c | 4917 | { |
c5aa993b | 4918 | int retval; |
c906108c | 4919 | |
e98cf0cd | 4920 | retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid); |
c906108c | 4921 | |
96baa820 | 4922 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4923 | pid, retval); |
c906108c SS |
4924 | |
4925 | return retval; | |
4926 | } | |
4927 | ||
77b06cd7 | 4928 | static int |
ba025e51 | 4929 | debug_to_insert_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4930 | { |
77b06cd7 TJB |
4931 | int retval; |
4932 | ||
ba025e51 | 4933 | retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid); |
c906108c | 4934 | |
77b06cd7 TJB |
4935 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4936 | pid, retval); | |
4937 | ||
4938 | return retval; | |
c906108c SS |
4939 | } |
4940 | ||
4941 | static int | |
758e29d2 | 4942 | debug_to_remove_exec_catchpoint (struct target_ops *self, int pid) |
c906108c | 4943 | { |
c5aa993b | 4944 | int retval; |
c906108c | 4945 | |
758e29d2 | 4946 | retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid); |
c906108c | 4947 | |
96baa820 | 4948 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4949 | pid, retval); |
c906108c SS |
4950 | |
4951 | return retval; | |
4952 | } | |
4953 | ||
c906108c | 4954 | static int |
d796e1d6 TT |
4955 | debug_to_has_exited (struct target_ops *self, |
4956 | int pid, int wait_status, int *exit_status) | |
c906108c | 4957 | { |
c5aa993b | 4958 | int has_exited; |
c906108c | 4959 | |
d796e1d6 TT |
4960 | has_exited = debug_target.to_has_exited (&debug_target, |
4961 | pid, wait_status, exit_status); | |
c906108c | 4962 | |
96baa820 | 4963 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4964 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4965 | |
4966 | return has_exited; | |
4967 | } | |
4968 | ||
c906108c | 4969 | static int |
da82bd6b | 4970 | debug_to_can_run (struct target_ops *self) |
c906108c SS |
4971 | { |
4972 | int retval; | |
4973 | ||
da82bd6b | 4974 | retval = debug_target.to_can_run (&debug_target); |
c906108c | 4975 | |
96baa820 | 4976 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4977 | |
4978 | return retval; | |
4979 | } | |
4980 | ||
c2250ad1 UW |
4981 | static struct gdbarch * |
4982 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4983 | { | |
4984 | struct gdbarch *retval; | |
4985 | ||
4986 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4987 | ||
3e43a32a MS |
4988 | fprintf_unfiltered (gdb_stdlog, |
4989 | "target_thread_architecture (%s) = %s [%s]\n", | |
4990 | target_pid_to_str (ptid), | |
4991 | host_address_to_string (retval), | |
c2250ad1 UW |
4992 | gdbarch_bfd_arch_info (retval)->printable_name); |
4993 | return retval; | |
4994 | } | |
4995 | ||
c906108c | 4996 | static void |
1eab8a48 | 4997 | debug_to_stop (struct target_ops *self, ptid_t ptid) |
c906108c | 4998 | { |
1eab8a48 | 4999 | debug_target.to_stop (&debug_target, ptid); |
c906108c | 5000 | |
94cc34af PA |
5001 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
5002 | target_pid_to_str (ptid)); | |
c906108c SS |
5003 | } |
5004 | ||
96baa820 | 5005 | static void |
1aac633b | 5006 | debug_to_rcmd (struct target_ops *self, char *command, |
d9fcf2fb | 5007 | struct ui_file *outbuf) |
96baa820 | 5008 | { |
1aac633b | 5009 | debug_target.to_rcmd (&debug_target, command, outbuf); |
96baa820 JM |
5010 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); |
5011 | } | |
5012 | ||
c906108c | 5013 | static char * |
8dd27370 | 5014 | debug_to_pid_to_exec_file (struct target_ops *self, int pid) |
c906108c | 5015 | { |
c5aa993b | 5016 | char *exec_file; |
c906108c | 5017 | |
8dd27370 | 5018 | exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid); |
c906108c | 5019 | |
96baa820 | 5020 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 5021 | pid, exec_file); |
c906108c SS |
5022 | |
5023 | return exec_file; | |
5024 | } | |
5025 | ||
c906108c | 5026 | static void |
fba45db2 | 5027 | setup_target_debug (void) |
c906108c SS |
5028 | { |
5029 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
5030 | ||
5031 | current_target.to_open = debug_to_open; | |
c906108c | 5032 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 5033 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 5034 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
5035 | current_target.to_files_info = debug_to_files_info; |
5036 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
5037 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
5038 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
5039 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
5040 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
5041 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
5042 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
5043 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
5044 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
5045 | current_target.to_watchpoint_addr_within_range |
5046 | = debug_to_watchpoint_addr_within_range; | |
5047 | current_target.to_region_ok_for_hw_watchpoint | |
5048 | = debug_to_region_ok_for_hw_watchpoint; | |
5049 | current_target.to_can_accel_watchpoint_condition | |
5050 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
5051 | current_target.to_terminal_init = debug_to_terminal_init; |
5052 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
5053 | current_target.to_terminal_ours_for_output |
5054 | = debug_to_terminal_ours_for_output; | |
c906108c | 5055 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 5056 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 5057 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 5058 | current_target.to_load = debug_to_load; |
c906108c | 5059 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
5060 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
5061 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
5062 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
5063 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
5064 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
5065 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 5066 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 5067 | current_target.to_can_run = debug_to_can_run; |
c906108c | 5068 | current_target.to_stop = debug_to_stop; |
96baa820 | 5069 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 5070 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 5071 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 5072 | } |
c906108c | 5073 | \f |
c5aa993b JM |
5074 | |
5075 | static char targ_desc[] = | |
3e43a32a MS |
5076 | "Names of targets and files being debugged.\nShows the entire \ |
5077 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
5078 | core-file, and process, if any), as well as the symbol file name."; |
5079 | ||
96baa820 JM |
5080 | static void |
5081 | do_monitor_command (char *cmd, | |
5082 | int from_tty) | |
5083 | { | |
2b5fe715 | 5084 | if ((current_target.to_rcmd |
1aac633b | 5085 | == (void (*) (struct target_ops *, char *, struct ui_file *)) tcomplain) |
96baa820 | 5086 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 | 5087 | && (debug_target.to_rcmd |
1aac633b TT |
5088 | == (void (*) (struct target_ops *, |
5089 | char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 5090 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
5091 | target_rcmd (cmd, gdb_stdtarg); |
5092 | } | |
5093 | ||
87680a14 JB |
5094 | /* Print the name of each layers of our target stack. */ |
5095 | ||
5096 | static void | |
5097 | maintenance_print_target_stack (char *cmd, int from_tty) | |
5098 | { | |
5099 | struct target_ops *t; | |
5100 | ||
5101 | printf_filtered (_("The current target stack is:\n")); | |
5102 | ||
5103 | for (t = target_stack; t != NULL; t = t->beneath) | |
5104 | { | |
5105 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
5106 | } | |
5107 | } | |
5108 | ||
c6ebd6cf VP |
5109 | /* Controls if async mode is permitted. */ |
5110 | int target_async_permitted = 0; | |
5111 | ||
5112 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 5113 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
5114 | static int target_async_permitted_1 = 0; |
5115 | ||
5116 | static void | |
9401a810 PA |
5117 | set_target_async_command (char *args, int from_tty, |
5118 | struct cmd_list_element *c) | |
c6ebd6cf | 5119 | { |
c35b1492 | 5120 | if (have_live_inferiors ()) |
c6ebd6cf VP |
5121 | { |
5122 | target_async_permitted_1 = target_async_permitted; | |
5123 | error (_("Cannot change this setting while the inferior is running.")); | |
5124 | } | |
5125 | ||
5126 | target_async_permitted = target_async_permitted_1; | |
5127 | } | |
5128 | ||
5129 | static void | |
9401a810 PA |
5130 | show_target_async_command (struct ui_file *file, int from_tty, |
5131 | struct cmd_list_element *c, | |
5132 | const char *value) | |
c6ebd6cf | 5133 | { |
3e43a32a MS |
5134 | fprintf_filtered (file, |
5135 | _("Controlling the inferior in " | |
5136 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5137 | } |
5138 | ||
d914c394 SS |
5139 | /* Temporary copies of permission settings. */ |
5140 | ||
5141 | static int may_write_registers_1 = 1; | |
5142 | static int may_write_memory_1 = 1; | |
5143 | static int may_insert_breakpoints_1 = 1; | |
5144 | static int may_insert_tracepoints_1 = 1; | |
5145 | static int may_insert_fast_tracepoints_1 = 1; | |
5146 | static int may_stop_1 = 1; | |
5147 | ||
5148 | /* Make the user-set values match the real values again. */ | |
5149 | ||
5150 | void | |
5151 | update_target_permissions (void) | |
5152 | { | |
5153 | may_write_registers_1 = may_write_registers; | |
5154 | may_write_memory_1 = may_write_memory; | |
5155 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5156 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5157 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5158 | may_stop_1 = may_stop; | |
5159 | } | |
5160 | ||
5161 | /* The one function handles (most of) the permission flags in the same | |
5162 | way. */ | |
5163 | ||
5164 | static void | |
5165 | set_target_permissions (char *args, int from_tty, | |
5166 | struct cmd_list_element *c) | |
5167 | { | |
5168 | if (target_has_execution) | |
5169 | { | |
5170 | update_target_permissions (); | |
5171 | error (_("Cannot change this setting while the inferior is running.")); | |
5172 | } | |
5173 | ||
5174 | /* Make the real values match the user-changed values. */ | |
5175 | may_write_registers = may_write_registers_1; | |
5176 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5177 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5178 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5179 | may_stop = may_stop_1; | |
5180 | update_observer_mode (); | |
5181 | } | |
5182 | ||
5183 | /* Set memory write permission independently of observer mode. */ | |
5184 | ||
5185 | static void | |
5186 | set_write_memory_permission (char *args, int from_tty, | |
5187 | struct cmd_list_element *c) | |
5188 | { | |
5189 | /* Make the real values match the user-changed values. */ | |
5190 | may_write_memory = may_write_memory_1; | |
5191 | update_observer_mode (); | |
5192 | } | |
5193 | ||
5194 | ||
c906108c | 5195 | void |
fba45db2 | 5196 | initialize_targets (void) |
c906108c SS |
5197 | { |
5198 | init_dummy_target (); | |
5199 | push_target (&dummy_target); | |
5200 | ||
5201 | add_info ("target", target_info, targ_desc); | |
5202 | add_info ("files", target_info, targ_desc); | |
5203 | ||
ccce17b0 | 5204 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5205 | Set target debugging."), _("\ |
5206 | Show target debugging."), _("\ | |
333dabeb DJ |
5207 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5208 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5209 | command."), |
ccce17b0 YQ |
5210 | NULL, |
5211 | show_targetdebug, | |
5212 | &setdebuglist, &showdebuglist); | |
3a11626d | 5213 | |
2bc416ba | 5214 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5215 | &trust_readonly, _("\ |
5216 | Set mode for reading from readonly sections."), _("\ | |
5217 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5218 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5219 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5220 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5221 | NULL, |
920d2a44 | 5222 | show_trust_readonly, |
e707bbc2 | 5223 | &setlist, &showlist); |
96baa820 JM |
5224 | |
5225 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5226 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5227 | |
87680a14 JB |
5228 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5229 | _("Print the name of each layer of the internal target stack."), | |
5230 | &maintenanceprintlist); | |
5231 | ||
c6ebd6cf VP |
5232 | add_setshow_boolean_cmd ("target-async", no_class, |
5233 | &target_async_permitted_1, _("\ | |
5234 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5235 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5236 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5237 | set_target_async_command, |
5238 | show_target_async_command, | |
c6ebd6cf VP |
5239 | &setlist, |
5240 | &showlist); | |
5241 | ||
d914c394 SS |
5242 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5243 | &may_write_registers_1, _("\ | |
5244 | Set permission to write into registers."), _("\ | |
5245 | Show permission to write into registers."), _("\ | |
5246 | When this permission is on, GDB may write into the target's registers.\n\ | |
5247 | Otherwise, any sort of write attempt will result in an error."), | |
5248 | set_target_permissions, NULL, | |
5249 | &setlist, &showlist); | |
5250 | ||
5251 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5252 | &may_write_memory_1, _("\ | |
5253 | Set permission to write into target memory."), _("\ | |
5254 | Show permission to write into target memory."), _("\ | |
5255 | When this permission is on, GDB may write into the target's memory.\n\ | |
5256 | Otherwise, any sort of write attempt will result in an error."), | |
5257 | set_write_memory_permission, NULL, | |
5258 | &setlist, &showlist); | |
5259 | ||
5260 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5261 | &may_insert_breakpoints_1, _("\ | |
5262 | Set permission to insert breakpoints in the target."), _("\ | |
5263 | Show permission to insert breakpoints in the target."), _("\ | |
5264 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5265 | Otherwise, any sort of insertion attempt will result in an error."), | |
5266 | set_target_permissions, NULL, | |
5267 | &setlist, &showlist); | |
5268 | ||
5269 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5270 | &may_insert_tracepoints_1, _("\ | |
5271 | Set permission to insert tracepoints in the target."), _("\ | |
5272 | Show permission to insert tracepoints in the target."), _("\ | |
5273 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5274 | Otherwise, any sort of insertion attempt will result in an error."), | |
5275 | set_target_permissions, NULL, | |
5276 | &setlist, &showlist); | |
5277 | ||
5278 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5279 | &may_insert_fast_tracepoints_1, _("\ | |
5280 | Set permission to insert fast tracepoints in the target."), _("\ | |
5281 | Show permission to insert fast tracepoints in the target."), _("\ | |
5282 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5283 | Otherwise, any sort of insertion attempt will result in an error."), | |
5284 | set_target_permissions, NULL, | |
5285 | &setlist, &showlist); | |
5286 | ||
5287 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5288 | &may_stop_1, _("\ | |
5289 | Set permission to interrupt or signal the target."), _("\ | |
5290 | Show permission to interrupt or signal the target."), _("\ | |
5291 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5292 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5293 | set_target_permissions, NULL, | |
5294 | &setlist, &showlist); | |
c906108c | 5295 | } |