Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
28e7fd62 | 3 | Copyright (C) 1990-2013 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> | |
c906108c SS |
24 | #include "gdb_string.h" |
25 | #include "target.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "symtab.h" | |
28 | #include "inferior.h" | |
29 | #include "bfd.h" | |
30 | #include "symfile.h" | |
31 | #include "objfiles.h" | |
4930751a | 32 | #include "dcache.h" |
c906108c | 33 | #include <signal.h> |
4e052eda | 34 | #include "regcache.h" |
0088c768 | 35 | #include "gdb_assert.h" |
b6591e8b | 36 | #include "gdbcore.h" |
9e35dae4 | 37 | #include "exceptions.h" |
424163ea | 38 | #include "target-descriptions.h" |
e1ac3328 | 39 | #include "gdbthread.h" |
b9db4ced | 40 | #include "solib.h" |
07b82ea5 | 41 | #include "exec.h" |
edb3359d | 42 | #include "inline-frame.h" |
2f4d8875 | 43 | #include "tracepoint.h" |
7313baad | 44 | #include "gdb/fileio.h" |
8ffcbaaf | 45 | #include "agent.h" |
c906108c | 46 | |
a14ed312 | 47 | static void target_info (char *, int); |
c906108c | 48 | |
503ebb2c | 49 | static void default_terminal_info (const char *, int); |
c906108c | 50 | |
5009afc5 AS |
51 | static int default_watchpoint_addr_within_range (struct target_ops *, |
52 | CORE_ADDR, CORE_ADDR, int); | |
53 | ||
e0d24f8d WZ |
54 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
55 | ||
c25c4a8b | 56 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 57 | |
a14ed312 | 58 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 59 | |
a14ed312 | 60 | static int return_zero (void); |
c906108c | 61 | |
a14ed312 | 62 | static int return_one (void); |
c906108c | 63 | |
ccaa32c7 GS |
64 | static int return_minus_one (void); |
65 | ||
a14ed312 | 66 | void target_ignore (void); |
c906108c | 67 | |
a14ed312 | 68 | static void target_command (char *, int); |
c906108c | 69 | |
a14ed312 | 70 | static struct target_ops *find_default_run_target (char *); |
c906108c | 71 | |
4b8a223f | 72 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 73 | enum target_object object, |
1b0ba102 AC |
74 | const char *annex, gdb_byte *readbuf, |
75 | const gdb_byte *writebuf, | |
8aa91c1e | 76 | ULONGEST offset, LONGEST len); |
0088c768 | 77 | |
cf7a04e8 DJ |
78 | static LONGEST current_xfer_partial (struct target_ops *ops, |
79 | enum target_object object, | |
80 | const char *annex, gdb_byte *readbuf, | |
81 | const gdb_byte *writebuf, | |
82 | ULONGEST offset, LONGEST len); | |
c906108c | 83 | |
c2250ad1 UW |
84 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
85 | ptid_t ptid); | |
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 | |
316f2060 | 93 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 94 | |
a14ed312 | 95 | static void debug_to_files_info (struct target_ops *); |
c906108c | 96 | |
a6d9a66e UW |
97 | static int debug_to_insert_breakpoint (struct gdbarch *, |
98 | struct bp_target_info *); | |
c906108c | 99 | |
a6d9a66e UW |
100 | static int debug_to_remove_breakpoint (struct gdbarch *, |
101 | struct bp_target_info *); | |
c906108c | 102 | |
ccaa32c7 GS |
103 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
104 | ||
a6d9a66e UW |
105 | static int debug_to_insert_hw_breakpoint (struct gdbarch *, |
106 | struct bp_target_info *); | |
ccaa32c7 | 107 | |
a6d9a66e UW |
108 | static int debug_to_remove_hw_breakpoint (struct gdbarch *, |
109 | struct bp_target_info *); | |
ccaa32c7 | 110 | |
0cf6dd15 TJB |
111 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int, |
112 | struct expression *); | |
ccaa32c7 | 113 | |
0cf6dd15 TJB |
114 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int, |
115 | struct expression *); | |
ccaa32c7 GS |
116 | |
117 | static int debug_to_stopped_by_watchpoint (void); | |
118 | ||
4aa7a7f5 | 119 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 120 | |
5009afc5 AS |
121 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
122 | CORE_ADDR, CORE_ADDR, int); | |
123 | ||
e0d24f8d WZ |
124 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
125 | ||
0cf6dd15 TJB |
126 | static int debug_to_can_accel_watchpoint_condition (CORE_ADDR, int, int, |
127 | struct expression *); | |
128 | ||
a14ed312 | 129 | static void debug_to_terminal_init (void); |
c906108c | 130 | |
a14ed312 | 131 | static void debug_to_terminal_inferior (void); |
c906108c | 132 | |
a14ed312 | 133 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 134 | |
a790ad35 SC |
135 | static void debug_to_terminal_save_ours (void); |
136 | ||
a14ed312 | 137 | static void debug_to_terminal_ours (void); |
c906108c | 138 | |
a14ed312 | 139 | static void debug_to_load (char *, int); |
c906108c | 140 | |
a14ed312 | 141 | static int debug_to_can_run (void); |
c906108c | 142 | |
94cc34af | 143 | static void debug_to_stop (ptid_t); |
c906108c | 144 | |
c906108c | 145 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 146 | array; the current index into the array; the allocated size of the |
c906108c SS |
147 | array. */ |
148 | struct target_ops **target_structs; | |
149 | unsigned target_struct_size; | |
c906108c SS |
150 | unsigned target_struct_allocsize; |
151 | #define DEFAULT_ALLOCSIZE 10 | |
152 | ||
153 | /* The initial current target, so that there is always a semi-valid | |
154 | current target. */ | |
155 | ||
156 | static struct target_ops dummy_target; | |
157 | ||
158 | /* Top of target stack. */ | |
159 | ||
258b763a | 160 | static struct target_ops *target_stack; |
c906108c SS |
161 | |
162 | /* The target structure we are currently using to talk to a process | |
163 | or file or whatever "inferior" we have. */ | |
164 | ||
165 | struct target_ops current_target; | |
166 | ||
167 | /* Command list for target. */ | |
168 | ||
169 | static struct cmd_list_element *targetlist = NULL; | |
170 | ||
cf7a04e8 DJ |
171 | /* Nonzero if we should trust readonly sections from the |
172 | executable when reading memory. */ | |
173 | ||
174 | static int trust_readonly = 0; | |
175 | ||
8defab1a DJ |
176 | /* Nonzero if we should show true memory content including |
177 | memory breakpoint inserted by gdb. */ | |
178 | ||
179 | static int show_memory_breakpoints = 0; | |
180 | ||
d914c394 SS |
181 | /* These globals control whether GDB attempts to perform these |
182 | operations; they are useful for targets that need to prevent | |
183 | inadvertant disruption, such as in non-stop mode. */ | |
184 | ||
185 | int may_write_registers = 1; | |
186 | ||
187 | int may_write_memory = 1; | |
188 | ||
189 | int may_insert_breakpoints = 1; | |
190 | ||
191 | int may_insert_tracepoints = 1; | |
192 | ||
193 | int may_insert_fast_tracepoints = 1; | |
194 | ||
195 | int may_stop = 1; | |
196 | ||
c906108c SS |
197 | /* Non-zero if we want to see trace of target level stuff. */ |
198 | ||
ccce17b0 | 199 | static unsigned int targetdebug = 0; |
920d2a44 AC |
200 | static void |
201 | show_targetdebug (struct ui_file *file, int from_tty, | |
202 | struct cmd_list_element *c, const char *value) | |
203 | { | |
204 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
205 | } | |
c906108c | 206 | |
a14ed312 | 207 | static void setup_target_debug (void); |
c906108c | 208 | |
4e5d721f DE |
209 | /* The option sets this. */ |
210 | static int stack_cache_enabled_p_1 = 1; | |
211 | /* And set_stack_cache_enabled_p updates this. | |
212 | The reason for the separation is so that we don't flush the cache for | |
213 | on->on transitions. */ | |
214 | static int stack_cache_enabled_p = 1; | |
215 | ||
216 | /* This is called *after* the stack-cache has been set. | |
217 | Flush the cache for off->on and on->off transitions. | |
218 | There's no real need to flush the cache for on->off transitions, | |
219 | except cleanliness. */ | |
220 | ||
221 | static void | |
222 | set_stack_cache_enabled_p (char *args, int from_tty, | |
223 | struct cmd_list_element *c) | |
224 | { | |
225 | if (stack_cache_enabled_p != stack_cache_enabled_p_1) | |
226 | target_dcache_invalidate (); | |
227 | ||
228 | stack_cache_enabled_p = stack_cache_enabled_p_1; | |
229 | } | |
230 | ||
231 | static void | |
232 | show_stack_cache_enabled_p (struct ui_file *file, int from_tty, | |
233 | struct cmd_list_element *c, const char *value) | |
234 | { | |
235 | fprintf_filtered (file, _("Cache use for stack accesses is %s.\n"), value); | |
236 | } | |
237 | ||
238 | /* Cache of memory operations, to speed up remote access. */ | |
239 | static DCACHE *target_dcache; | |
240 | ||
241 | /* Invalidate the target dcache. */ | |
242 | ||
243 | void | |
244 | target_dcache_invalidate (void) | |
245 | { | |
246 | dcache_invalidate (target_dcache); | |
247 | } | |
4930751a | 248 | |
c906108c SS |
249 | /* The user just typed 'target' without the name of a target. */ |
250 | ||
c906108c | 251 | static void |
fba45db2 | 252 | target_command (char *arg, int from_tty) |
c906108c SS |
253 | { |
254 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
255 | gdb_stdout); | |
256 | } | |
257 | ||
c35b1492 PA |
258 | /* Default target_has_* methods for process_stratum targets. */ |
259 | ||
260 | int | |
261 | default_child_has_all_memory (struct target_ops *ops) | |
262 | { | |
263 | /* If no inferior selected, then we can't read memory here. */ | |
264 | if (ptid_equal (inferior_ptid, null_ptid)) | |
265 | return 0; | |
266 | ||
267 | return 1; | |
268 | } | |
269 | ||
270 | int | |
271 | default_child_has_memory (struct target_ops *ops) | |
272 | { | |
273 | /* If no inferior selected, then we can't read memory here. */ | |
274 | if (ptid_equal (inferior_ptid, null_ptid)) | |
275 | return 0; | |
276 | ||
277 | return 1; | |
278 | } | |
279 | ||
280 | int | |
281 | default_child_has_stack (struct target_ops *ops) | |
282 | { | |
283 | /* If no inferior selected, there's no stack. */ | |
284 | if (ptid_equal (inferior_ptid, null_ptid)) | |
285 | return 0; | |
286 | ||
287 | return 1; | |
288 | } | |
289 | ||
290 | int | |
291 | default_child_has_registers (struct target_ops *ops) | |
292 | { | |
293 | /* Can't read registers from no inferior. */ | |
294 | if (ptid_equal (inferior_ptid, null_ptid)) | |
295 | return 0; | |
296 | ||
297 | return 1; | |
298 | } | |
299 | ||
300 | int | |
aeaec162 | 301 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
302 | { |
303 | /* If there's no thread selected, then we can't make it run through | |
304 | hoops. */ | |
aeaec162 | 305 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
306 | return 0; |
307 | ||
308 | return 1; | |
309 | } | |
310 | ||
311 | ||
312 | int | |
313 | target_has_all_memory_1 (void) | |
314 | { | |
315 | struct target_ops *t; | |
316 | ||
317 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
318 | if (t->to_has_all_memory (t)) | |
319 | return 1; | |
320 | ||
321 | return 0; | |
322 | } | |
323 | ||
324 | int | |
325 | target_has_memory_1 (void) | |
326 | { | |
327 | struct target_ops *t; | |
328 | ||
329 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
330 | if (t->to_has_memory (t)) | |
331 | return 1; | |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
336 | int | |
337 | target_has_stack_1 (void) | |
338 | { | |
339 | struct target_ops *t; | |
340 | ||
341 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
342 | if (t->to_has_stack (t)) | |
343 | return 1; | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
348 | int | |
349 | target_has_registers_1 (void) | |
350 | { | |
351 | struct target_ops *t; | |
352 | ||
353 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
354 | if (t->to_has_registers (t)) | |
355 | return 1; | |
356 | ||
357 | return 0; | |
358 | } | |
359 | ||
360 | int | |
aeaec162 | 361 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
362 | { |
363 | struct target_ops *t; | |
364 | ||
365 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 366 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
367 | return 1; |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
aeaec162 TT |
372 | int |
373 | target_has_execution_current (void) | |
374 | { | |
375 | return target_has_execution_1 (inferior_ptid); | |
376 | } | |
377 | ||
c22a2b88 TT |
378 | /* Complete initialization of T. This ensures that various fields in |
379 | T are set, if needed by the target implementation. */ | |
c906108c SS |
380 | |
381 | void | |
c22a2b88 | 382 | complete_target_initialization (struct target_ops *t) |
c906108c | 383 | { |
0088c768 | 384 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
385 | if (t->to_xfer_partial == NULL) |
386 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 387 | |
c35b1492 PA |
388 | if (t->to_has_all_memory == NULL) |
389 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
390 | ||
391 | if (t->to_has_memory == NULL) | |
392 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
393 | ||
394 | if (t->to_has_stack == NULL) | |
395 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
396 | ||
397 | if (t->to_has_registers == NULL) | |
398 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
399 | ||
400 | if (t->to_has_execution == NULL) | |
aeaec162 | 401 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
c22a2b88 TT |
402 | } |
403 | ||
404 | /* Add possible target architecture T to the list and add a new | |
405 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
406 | completer if not NULL. */ | |
407 | ||
408 | void | |
409 | add_target_with_completer (struct target_ops *t, | |
410 | completer_ftype *completer) | |
411 | { | |
412 | struct cmd_list_element *c; | |
413 | ||
414 | complete_target_initialization (t); | |
c35b1492 | 415 | |
c906108c SS |
416 | if (!target_structs) |
417 | { | |
418 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
419 | target_structs = (struct target_ops **) xmalloc | |
420 | (target_struct_allocsize * sizeof (*target_structs)); | |
421 | } | |
422 | if (target_struct_size >= target_struct_allocsize) | |
423 | { | |
424 | target_struct_allocsize *= 2; | |
425 | target_structs = (struct target_ops **) | |
c5aa993b JM |
426 | xrealloc ((char *) target_structs, |
427 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
428 | } |
429 | target_structs[target_struct_size++] = t; | |
c906108c SS |
430 | |
431 | if (targetlist == NULL) | |
1bedd215 AC |
432 | add_prefix_cmd ("target", class_run, target_command, _("\ |
433 | Connect to a target machine or process.\n\ | |
c906108c SS |
434 | The first argument is the type or protocol of the target machine.\n\ |
435 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
436 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 437 | `help target ' followed by the protocol name."), |
c906108c | 438 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
439 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
440 | &targetlist); | |
441 | if (completer != NULL) | |
442 | set_cmd_completer (c, completer); | |
443 | } | |
444 | ||
445 | /* Add a possible target architecture to the list. */ | |
446 | ||
447 | void | |
448 | add_target (struct target_ops *t) | |
449 | { | |
450 | add_target_with_completer (t, NULL); | |
c906108c SS |
451 | } |
452 | ||
b48d48eb MM |
453 | /* See target.h. */ |
454 | ||
455 | void | |
456 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
457 | { | |
458 | struct cmd_list_element *c; | |
459 | char *alt; | |
460 | ||
461 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
462 | see PR cli/15104. */ | |
463 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
464 | alt = xstrprintf ("target %s", t->to_shortname); | |
465 | deprecate_cmd (c, alt); | |
466 | } | |
467 | ||
c906108c SS |
468 | /* Stub functions */ |
469 | ||
470 | void | |
fba45db2 | 471 | target_ignore (void) |
c906108c SS |
472 | { |
473 | } | |
474 | ||
7d85a9c0 JB |
475 | void |
476 | target_kill (void) | |
477 | { | |
478 | struct target_ops *t; | |
479 | ||
480 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
481 | if (t->to_kill != NULL) | |
482 | { | |
483 | if (targetdebug) | |
484 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
485 | ||
486 | t->to_kill (t); | |
487 | return; | |
488 | } | |
489 | ||
490 | noprocess (); | |
491 | } | |
492 | ||
11cf8741 JM |
493 | void |
494 | target_load (char *arg, int from_tty) | |
495 | { | |
4e5d721f | 496 | target_dcache_invalidate (); |
11cf8741 JM |
497 | (*current_target.to_load) (arg, from_tty); |
498 | } | |
499 | ||
947b8855 PA |
500 | void |
501 | target_create_inferior (char *exec_file, char *args, | |
502 | char **env, int from_tty) | |
136d6dae VP |
503 | { |
504 | struct target_ops *t; | |
5d502164 | 505 | |
136d6dae VP |
506 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
507 | { | |
508 | if (t->to_create_inferior != NULL) | |
509 | { | |
510 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
511 | if (targetdebug) |
512 | fprintf_unfiltered (gdb_stdlog, | |
513 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
514 | exec_file, args, from_tty); | |
136d6dae VP |
515 | return; |
516 | } | |
517 | } | |
518 | ||
519 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 520 | _("could not find a target to create inferior")); |
136d6dae VP |
521 | } |
522 | ||
d9d2d8b6 PA |
523 | void |
524 | target_terminal_inferior (void) | |
525 | { | |
526 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 527 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
528 | this point the target is not async yet. However, if sync_execution |
529 | is not set, we know it will become async prior to resume. */ | |
530 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
531 | return; |
532 | ||
533 | /* If GDB is resuming the inferior in the foreground, install | |
534 | inferior's terminal modes. */ | |
535 | (*current_target.to_terminal_inferior) (); | |
536 | } | |
136d6dae | 537 | |
c906108c | 538 | static int |
fba45db2 KB |
539 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
540 | struct target_ops *t) | |
c906108c | 541 | { |
c378eb4e MS |
542 | errno = EIO; /* Can't read/write this location. */ |
543 | return 0; /* No bytes handled. */ | |
c906108c SS |
544 | } |
545 | ||
546 | static void | |
fba45db2 | 547 | tcomplain (void) |
c906108c | 548 | { |
8a3fe4f8 | 549 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
550 | current_target.to_shortname); |
551 | } | |
552 | ||
553 | void | |
fba45db2 | 554 | noprocess (void) |
c906108c | 555 | { |
8a3fe4f8 | 556 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
557 | } |
558 | ||
c906108c | 559 | static void |
503ebb2c | 560 | default_terminal_info (const char *args, int from_tty) |
c906108c | 561 | { |
a3f17187 | 562 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
563 | } |
564 | ||
0ef643c8 JB |
565 | /* A default implementation for the to_get_ada_task_ptid target method. |
566 | ||
567 | This function builds the PTID by using both LWP and TID as part of | |
568 | the PTID lwp and tid elements. The pid used is the pid of the | |
569 | inferior_ptid. */ | |
570 | ||
2c0b251b | 571 | static ptid_t |
0ef643c8 JB |
572 | default_get_ada_task_ptid (long lwp, long tid) |
573 | { | |
574 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
575 | } | |
576 | ||
32231432 PA |
577 | static enum exec_direction_kind |
578 | default_execution_direction (void) | |
579 | { | |
580 | if (!target_can_execute_reverse) | |
581 | return EXEC_FORWARD; | |
582 | else if (!target_can_async_p ()) | |
583 | return EXEC_FORWARD; | |
584 | else | |
585 | gdb_assert_not_reached ("\ | |
586 | to_execution_direction must be implemented for reverse async"); | |
587 | } | |
588 | ||
7998dfc3 AC |
589 | /* Go through the target stack from top to bottom, copying over zero |
590 | entries in current_target, then filling in still empty entries. In | |
591 | effect, we are doing class inheritance through the pushed target | |
592 | vectors. | |
593 | ||
594 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
595 | is currently implemented, is that it discards any knowledge of | |
596 | which target an inherited method originally belonged to. | |
597 | Consequently, new new target methods should instead explicitly and | |
598 | locally search the target stack for the target that can handle the | |
599 | request. */ | |
c906108c SS |
600 | |
601 | static void | |
7998dfc3 | 602 | update_current_target (void) |
c906108c | 603 | { |
7998dfc3 AC |
604 | struct target_ops *t; |
605 | ||
08d8bcd7 | 606 | /* First, reset current's contents. */ |
7998dfc3 AC |
607 | memset (¤t_target, 0, sizeof (current_target)); |
608 | ||
609 | #define INHERIT(FIELD, TARGET) \ | |
610 | if (!current_target.FIELD) \ | |
611 | current_target.FIELD = (TARGET)->FIELD | |
612 | ||
613 | for (t = target_stack; t; t = t->beneath) | |
614 | { | |
615 | INHERIT (to_shortname, t); | |
616 | INHERIT (to_longname, t); | |
617 | INHERIT (to_doc, t); | |
b52323fa UW |
618 | /* Do not inherit to_open. */ |
619 | /* Do not inherit to_close. */ | |
136d6dae | 620 | /* Do not inherit to_attach. */ |
7998dfc3 | 621 | INHERIT (to_post_attach, t); |
dc177b7a | 622 | INHERIT (to_attach_no_wait, t); |
136d6dae | 623 | /* Do not inherit to_detach. */ |
597320e7 | 624 | /* Do not inherit to_disconnect. */ |
28439f5e | 625 | /* Do not inherit to_resume. */ |
117de6a9 | 626 | /* Do not inherit to_wait. */ |
28439f5e PA |
627 | /* Do not inherit to_fetch_registers. */ |
628 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 629 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 630 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
631 | INHERIT (to_files_info, t); |
632 | INHERIT (to_insert_breakpoint, t); | |
633 | INHERIT (to_remove_breakpoint, t); | |
634 | INHERIT (to_can_use_hw_breakpoint, t); | |
635 | INHERIT (to_insert_hw_breakpoint, t); | |
636 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 637 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
638 | INHERIT (to_insert_watchpoint, t); |
639 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
640 | /* Do not inherit to_insert_mask_watchpoint. */ |
641 | /* Do not inherit to_remove_mask_watchpoint. */ | |
7998dfc3 | 642 | INHERIT (to_stopped_data_address, t); |
74174d2e | 643 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 644 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
645 | INHERIT (to_stopped_by_watchpoint, t); |
646 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 647 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 648 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 649 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
650 | INHERIT (to_terminal_init, t); |
651 | INHERIT (to_terminal_inferior, t); | |
652 | INHERIT (to_terminal_ours_for_output, t); | |
653 | INHERIT (to_terminal_ours, t); | |
654 | INHERIT (to_terminal_save_ours, t); | |
655 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 656 | /* Do not inherit to_kill. */ |
7998dfc3 | 657 | INHERIT (to_load, t); |
136d6dae | 658 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 659 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
660 | INHERIT (to_insert_fork_catchpoint, t); |
661 | INHERIT (to_remove_fork_catchpoint, t); | |
662 | INHERIT (to_insert_vfork_catchpoint, t); | |
663 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 664 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
665 | INHERIT (to_insert_exec_catchpoint, t); |
666 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 667 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 668 | INHERIT (to_has_exited, t); |
82892036 | 669 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 670 | INHERIT (to_can_run, t); |
2455069d | 671 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 672 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
673 | /* Do not inherit to_thread_alive. */ |
674 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 675 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 676 | INHERIT (to_extra_thread_info, t); |
4694da01 | 677 | INHERIT (to_thread_name, t); |
7998dfc3 | 678 | INHERIT (to_stop, t); |
4b8a223f | 679 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 680 | INHERIT (to_rcmd, t); |
7998dfc3 | 681 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 682 | INHERIT (to_log_command, t); |
7998dfc3 | 683 | INHERIT (to_stratum, t); |
c378eb4e MS |
684 | /* Do not inherit to_has_all_memory. */ |
685 | /* Do not inherit to_has_memory. */ | |
686 | /* Do not inherit to_has_stack. */ | |
687 | /* Do not inherit to_has_registers. */ | |
688 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 689 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
690 | INHERIT (to_can_async_p, t); |
691 | INHERIT (to_is_async_p, t); | |
692 | INHERIT (to_async, t); | |
7998dfc3 AC |
693 | INHERIT (to_find_memory_regions, t); |
694 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
695 | INHERIT (to_get_bookmark, t); |
696 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 697 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 698 | INHERIT (to_can_execute_reverse, t); |
32231432 | 699 | INHERIT (to_execution_direction, t); |
c2250ad1 | 700 | INHERIT (to_thread_architecture, t); |
424163ea | 701 | /* Do not inherit to_read_description. */ |
0ef643c8 | 702 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 703 | /* Do not inherit to_search_memory. */ |
8a305172 | 704 | INHERIT (to_supports_multi_process, t); |
d248b706 | 705 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 706 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
707 | INHERIT (to_trace_init, t); |
708 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 709 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 710 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
711 | INHERIT (to_enable_tracepoint, t); |
712 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
713 | INHERIT (to_trace_set_readonly_regions, t); |
714 | INHERIT (to_trace_start, t); | |
715 | INHERIT (to_get_trace_status, t); | |
f196051f | 716 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
717 | INHERIT (to_trace_stop, t); |
718 | INHERIT (to_trace_find, t); | |
719 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
720 | INHERIT (to_save_trace_data, t); |
721 | INHERIT (to_upload_tracepoints, t); | |
722 | INHERIT (to_upload_trace_state_variables, t); | |
723 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 724 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 725 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 726 | INHERIT (to_set_circular_trace_buffer, t); |
f6f899bf | 727 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 728 | INHERIT (to_set_trace_notes, t); |
711e434b | 729 | INHERIT (to_get_tib_address, t); |
d914c394 | 730 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
731 | INHERIT (to_static_tracepoint_marker_at, t); |
732 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 733 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
734 | INHERIT (to_use_agent, t); |
735 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 736 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 737 | INHERIT (to_magic, t); |
b775012e | 738 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 739 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 740 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
741 | /* Do not inherit to_flash_erase. */ |
742 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
743 | } |
744 | #undef INHERIT | |
745 | ||
746 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
747 | it. Some entries are defaulted to a method that print an error, |
748 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
749 | |
750 | #define de_fault(field, value) \ | |
7998dfc3 AC |
751 | if (!current_target.field) \ |
752 | current_target.field = value | |
0d06e24b | 753 | |
2bc416ba DJ |
754 | de_fault (to_open, |
755 | (void (*) (char *, int)) | |
0d06e24b | 756 | tcomplain); |
2bc416ba | 757 | de_fault (to_close, |
460014f5 | 758 | (void (*) (void)) |
0d06e24b | 759 | target_ignore); |
2bc416ba DJ |
760 | de_fault (to_post_attach, |
761 | (void (*) (int)) | |
0d06e24b | 762 | target_ignore); |
2bc416ba | 763 | de_fault (to_prepare_to_store, |
316f2060 | 764 | (void (*) (struct regcache *)) |
0d06e24b | 765 | noprocess); |
2bc416ba | 766 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
767 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
768 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 769 | nomemory); |
2bc416ba DJ |
770 | de_fault (to_files_info, |
771 | (void (*) (struct target_ops *)) | |
0d06e24b | 772 | target_ignore); |
2bc416ba | 773 | de_fault (to_insert_breakpoint, |
0d06e24b | 774 | memory_insert_breakpoint); |
2bc416ba | 775 | de_fault (to_remove_breakpoint, |
0d06e24b | 776 | memory_remove_breakpoint); |
ccaa32c7 GS |
777 | de_fault (to_can_use_hw_breakpoint, |
778 | (int (*) (int, int, int)) | |
779 | return_zero); | |
780 | de_fault (to_insert_hw_breakpoint, | |
a6d9a66e | 781 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
782 | return_minus_one); |
783 | de_fault (to_remove_hw_breakpoint, | |
a6d9a66e | 784 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
785 | return_minus_one); |
786 | de_fault (to_insert_watchpoint, | |
0cf6dd15 | 787 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
788 | return_minus_one); |
789 | de_fault (to_remove_watchpoint, | |
0cf6dd15 | 790 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
791 | return_minus_one); |
792 | de_fault (to_stopped_by_watchpoint, | |
793 | (int (*) (void)) | |
794 | return_zero); | |
795 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 796 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 797 | return_zero); |
5009afc5 AS |
798 | de_fault (to_watchpoint_addr_within_range, |
799 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
800 | de_fault (to_region_ok_for_hw_watchpoint, |
801 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 TJB |
802 | de_fault (to_can_accel_watchpoint_condition, |
803 | (int (*) (CORE_ADDR, int, int, struct expression *)) | |
804 | return_zero); | |
2bc416ba DJ |
805 | de_fault (to_terminal_init, |
806 | (void (*) (void)) | |
0d06e24b | 807 | target_ignore); |
2bc416ba DJ |
808 | de_fault (to_terminal_inferior, |
809 | (void (*) (void)) | |
0d06e24b | 810 | target_ignore); |
2bc416ba DJ |
811 | de_fault (to_terminal_ours_for_output, |
812 | (void (*) (void)) | |
0d06e24b | 813 | target_ignore); |
2bc416ba DJ |
814 | de_fault (to_terminal_ours, |
815 | (void (*) (void)) | |
0d06e24b | 816 | target_ignore); |
2bc416ba DJ |
817 | de_fault (to_terminal_save_ours, |
818 | (void (*) (void)) | |
a790ad35 | 819 | target_ignore); |
2bc416ba | 820 | de_fault (to_terminal_info, |
0d06e24b | 821 | default_terminal_info); |
2bc416ba DJ |
822 | de_fault (to_load, |
823 | (void (*) (char *, int)) | |
0d06e24b | 824 | tcomplain); |
2bc416ba DJ |
825 | de_fault (to_post_startup_inferior, |
826 | (void (*) (ptid_t)) | |
0d06e24b | 827 | target_ignore); |
2bc416ba | 828 | de_fault (to_insert_fork_catchpoint, |
77b06cd7 TJB |
829 | (int (*) (int)) |
830 | return_one); | |
2bc416ba DJ |
831 | de_fault (to_remove_fork_catchpoint, |
832 | (int (*) (int)) | |
77b06cd7 | 833 | return_one); |
2bc416ba | 834 | de_fault (to_insert_vfork_catchpoint, |
77b06cd7 TJB |
835 | (int (*) (int)) |
836 | return_one); | |
2bc416ba DJ |
837 | de_fault (to_remove_vfork_catchpoint, |
838 | (int (*) (int)) | |
77b06cd7 | 839 | return_one); |
2bc416ba | 840 | de_fault (to_insert_exec_catchpoint, |
77b06cd7 TJB |
841 | (int (*) (int)) |
842 | return_one); | |
2bc416ba DJ |
843 | de_fault (to_remove_exec_catchpoint, |
844 | (int (*) (int)) | |
77b06cd7 | 845 | return_one); |
a96d9b2e SDJ |
846 | de_fault (to_set_syscall_catchpoint, |
847 | (int (*) (int, int, int, int, int *)) | |
77b06cd7 | 848 | return_one); |
2bc416ba DJ |
849 | de_fault (to_has_exited, |
850 | (int (*) (int, int, int *)) | |
0d06e24b | 851 | return_zero); |
2bc416ba | 852 | de_fault (to_can_run, |
0d06e24b | 853 | return_zero); |
2bc416ba DJ |
854 | de_fault (to_extra_thread_info, |
855 | (char *(*) (struct thread_info *)) | |
0d06e24b | 856 | return_zero); |
4694da01 TT |
857 | de_fault (to_thread_name, |
858 | (char *(*) (struct thread_info *)) | |
859 | return_zero); | |
2bc416ba | 860 | de_fault (to_stop, |
94cc34af | 861 | (void (*) (ptid_t)) |
0d06e24b | 862 | target_ignore); |
cf7a04e8 | 863 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
864 | de_fault (to_rcmd, |
865 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 866 | tcomplain); |
2bc416ba DJ |
867 | de_fault (to_pid_to_exec_file, |
868 | (char *(*) (int)) | |
0d06e24b | 869 | return_zero); |
2bc416ba DJ |
870 | de_fault (to_async, |
871 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 872 | tcomplain); |
c2250ad1 UW |
873 | de_fault (to_thread_architecture, |
874 | default_thread_architecture); | |
424163ea | 875 | current_target.to_read_description = NULL; |
0ef643c8 JB |
876 | de_fault (to_get_ada_task_ptid, |
877 | (ptid_t (*) (long, long)) | |
878 | default_get_ada_task_ptid); | |
8a305172 PA |
879 | de_fault (to_supports_multi_process, |
880 | (int (*) (void)) | |
881 | return_zero); | |
d248b706 KY |
882 | de_fault (to_supports_enable_disable_tracepoint, |
883 | (int (*) (void)) | |
884 | return_zero); | |
3065dfb6 SS |
885 | de_fault (to_supports_string_tracing, |
886 | (int (*) (void)) | |
887 | return_zero); | |
35b1e5cc SS |
888 | de_fault (to_trace_init, |
889 | (void (*) (void)) | |
890 | tcomplain); | |
891 | de_fault (to_download_tracepoint, | |
e8ba3115 | 892 | (void (*) (struct bp_location *)) |
35b1e5cc | 893 | tcomplain); |
1e4d1764 YQ |
894 | de_fault (to_can_download_tracepoint, |
895 | (int (*) (void)) | |
896 | return_zero); | |
35b1e5cc SS |
897 | de_fault (to_download_trace_state_variable, |
898 | (void (*) (struct trace_state_variable *)) | |
899 | tcomplain); | |
d248b706 KY |
900 | de_fault (to_enable_tracepoint, |
901 | (void (*) (struct bp_location *)) | |
902 | tcomplain); | |
903 | de_fault (to_disable_tracepoint, | |
904 | (void (*) (struct bp_location *)) | |
905 | tcomplain); | |
35b1e5cc SS |
906 | de_fault (to_trace_set_readonly_regions, |
907 | (void (*) (void)) | |
908 | tcomplain); | |
909 | de_fault (to_trace_start, | |
910 | (void (*) (void)) | |
911 | tcomplain); | |
912 | de_fault (to_get_trace_status, | |
00bf0b85 | 913 | (int (*) (struct trace_status *)) |
35b1e5cc | 914 | return_minus_one); |
f196051f SS |
915 | de_fault (to_get_tracepoint_status, |
916 | (void (*) (struct breakpoint *, struct uploaded_tp *)) | |
917 | tcomplain); | |
35b1e5cc SS |
918 | de_fault (to_trace_stop, |
919 | (void (*) (void)) | |
920 | tcomplain); | |
921 | de_fault (to_trace_find, | |
cc5925ad | 922 | (int (*) (enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) |
4136fdd2 | 923 | return_minus_one); |
35b1e5cc SS |
924 | de_fault (to_get_trace_state_variable_value, |
925 | (int (*) (int, LONGEST *)) | |
926 | return_zero); | |
00bf0b85 | 927 | de_fault (to_save_trace_data, |
011aacb0 | 928 | (int (*) (const char *)) |
00bf0b85 SS |
929 | tcomplain); |
930 | de_fault (to_upload_tracepoints, | |
931 | (int (*) (struct uploaded_tp **)) | |
932 | return_zero); | |
933 | de_fault (to_upload_trace_state_variables, | |
934 | (int (*) (struct uploaded_tsv **)) | |
935 | return_zero); | |
936 | de_fault (to_get_raw_trace_data, | |
937 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
938 | tcomplain); | |
405f8e94 SS |
939 | de_fault (to_get_min_fast_tracepoint_insn_len, |
940 | (int (*) (void)) | |
941 | return_minus_one); | |
35b1e5cc SS |
942 | de_fault (to_set_disconnected_tracing, |
943 | (void (*) (int)) | |
4daf5ac0 SS |
944 | target_ignore); |
945 | de_fault (to_set_circular_trace_buffer, | |
946 | (void (*) (int)) | |
947 | target_ignore); | |
f6f899bf HAQ |
948 | de_fault (to_set_trace_buffer_size, |
949 | (void (*) (LONGEST)) | |
950 | target_ignore); | |
f196051f | 951 | de_fault (to_set_trace_notes, |
ca623f82 | 952 | (int (*) (const char *, const char *, const char *)) |
f196051f | 953 | return_zero); |
711e434b PM |
954 | de_fault (to_get_tib_address, |
955 | (int (*) (ptid_t, CORE_ADDR *)) | |
956 | tcomplain); | |
d914c394 SS |
957 | de_fault (to_set_permissions, |
958 | (void (*) (void)) | |
959 | target_ignore); | |
0fb4aa4b PA |
960 | de_fault (to_static_tracepoint_marker_at, |
961 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
962 | return_zero); | |
963 | de_fault (to_static_tracepoint_markers_by_strid, | |
964 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
965 | tcomplain); | |
b3b9301e PA |
966 | de_fault (to_traceframe_info, |
967 | (struct traceframe_info * (*) (void)) | |
1527aea8 | 968 | return_zero); |
b775012e LM |
969 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
970 | (int (*) (void)) | |
971 | return_zero); | |
d3ce09f5 SS |
972 | de_fault (to_can_run_breakpoint_commands, |
973 | (int (*) (void)) | |
974 | return_zero); | |
d1feda86 YQ |
975 | de_fault (to_use_agent, |
976 | (int (*) (int)) | |
977 | tcomplain); | |
978 | de_fault (to_can_use_agent, | |
979 | (int (*) (void)) | |
980 | return_zero); | |
ced63ec0 GB |
981 | de_fault (to_augmented_libraries_svr4_read, |
982 | (int (*) (void)) | |
983 | return_zero); | |
32231432 PA |
984 | de_fault (to_execution_direction, default_execution_direction); |
985 | ||
c906108c | 986 | #undef de_fault |
c906108c | 987 | |
7998dfc3 AC |
988 | /* Finally, position the target-stack beneath the squashed |
989 | "current_target". That way code looking for a non-inherited | |
990 | target method can quickly and simply find it. */ | |
991 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
992 | |
993 | if (targetdebug) | |
994 | setup_target_debug (); | |
c906108c SS |
995 | } |
996 | ||
997 | /* Push a new target type into the stack of the existing target accessors, | |
998 | possibly superseding some of the existing accessors. | |
999 | ||
c906108c SS |
1000 | Rather than allow an empty stack, we always have the dummy target at |
1001 | the bottom stratum, so we can call the function vectors without | |
1002 | checking them. */ | |
1003 | ||
b26a4dcb | 1004 | void |
fba45db2 | 1005 | push_target (struct target_ops *t) |
c906108c | 1006 | { |
258b763a | 1007 | struct target_ops **cur; |
c906108c SS |
1008 | |
1009 | /* Check magic number. If wrong, it probably means someone changed | |
1010 | the struct definition, but not all the places that initialize one. */ | |
1011 | if (t->to_magic != OPS_MAGIC) | |
1012 | { | |
c5aa993b JM |
1013 | fprintf_unfiltered (gdb_stderr, |
1014 | "Magic number of %s target struct wrong\n", | |
1015 | t->to_shortname); | |
3e43a32a MS |
1016 | internal_error (__FILE__, __LINE__, |
1017 | _("failed internal consistency check")); | |
c906108c SS |
1018 | } |
1019 | ||
258b763a AC |
1020 | /* Find the proper stratum to install this target in. */ |
1021 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 1022 | { |
258b763a | 1023 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
1024 | break; |
1025 | } | |
1026 | ||
258b763a | 1027 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 1028 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
1029 | targets to CUR, and not just those at this stratum level. */ |
1030 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
1031 | { | |
1032 | /* There's already something at this stratum level. Close it, | |
1033 | and un-hook it from the stack. */ | |
1034 | struct target_ops *tmp = (*cur); | |
5d502164 | 1035 | |
258b763a AC |
1036 | (*cur) = (*cur)->beneath; |
1037 | tmp->beneath = NULL; | |
460014f5 | 1038 | target_close (tmp); |
258b763a | 1039 | } |
c906108c SS |
1040 | |
1041 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
1042 | t->beneath = (*cur); |
1043 | (*cur) = t; | |
c906108c SS |
1044 | |
1045 | update_current_target (); | |
c906108c SS |
1046 | } |
1047 | ||
2bc416ba | 1048 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1049 | Return how many times it was removed (0 or 1). */ |
1050 | ||
1051 | int | |
fba45db2 | 1052 | unpush_target (struct target_ops *t) |
c906108c | 1053 | { |
258b763a AC |
1054 | struct target_ops **cur; |
1055 | struct target_ops *tmp; | |
c906108c | 1056 | |
c8d104ad PA |
1057 | if (t->to_stratum == dummy_stratum) |
1058 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1059 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1060 | |
c906108c | 1061 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1062 | can only occur once in the target stack. */ |
c906108c | 1063 | |
258b763a AC |
1064 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1065 | { | |
1066 | if ((*cur) == t) | |
1067 | break; | |
1068 | } | |
c906108c | 1069 | |
305436e0 PA |
1070 | /* If we don't find target_ops, quit. Only open targets should be |
1071 | closed. */ | |
258b763a | 1072 | if ((*cur) == NULL) |
305436e0 | 1073 | return 0; |
5269965e | 1074 | |
c378eb4e | 1075 | /* Unchain the target. */ |
258b763a AC |
1076 | tmp = (*cur); |
1077 | (*cur) = (*cur)->beneath; | |
1078 | tmp->beneath = NULL; | |
c906108c SS |
1079 | |
1080 | update_current_target (); | |
c906108c | 1081 | |
305436e0 PA |
1082 | /* Finally close the target. Note we do this after unchaining, so |
1083 | any target method calls from within the target_close | |
1084 | implementation don't end up in T anymore. */ | |
460014f5 | 1085 | target_close (t); |
305436e0 | 1086 | |
c906108c SS |
1087 | return 1; |
1088 | } | |
1089 | ||
aa76d38d | 1090 | void |
460014f5 | 1091 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1092 | { |
87ab71f0 | 1093 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1094 | { |
aa76d38d PA |
1095 | if (!unpush_target (target_stack)) |
1096 | { | |
1097 | fprintf_unfiltered (gdb_stderr, | |
1098 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1099 | target_stack->to_shortname); |
aa76d38d PA |
1100 | internal_error (__FILE__, __LINE__, |
1101 | _("failed internal consistency check")); | |
1102 | break; | |
1103 | } | |
1104 | } | |
1105 | } | |
1106 | ||
87ab71f0 | 1107 | void |
460014f5 | 1108 | pop_all_targets (void) |
87ab71f0 | 1109 | { |
460014f5 | 1110 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1111 | } |
1112 | ||
c0edd9ed JK |
1113 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1114 | ||
1115 | int | |
1116 | target_is_pushed (struct target_ops *t) | |
1117 | { | |
1118 | struct target_ops **cur; | |
1119 | ||
1120 | /* Check magic number. If wrong, it probably means someone changed | |
1121 | the struct definition, but not all the places that initialize one. */ | |
1122 | if (t->to_magic != OPS_MAGIC) | |
1123 | { | |
1124 | fprintf_unfiltered (gdb_stderr, | |
1125 | "Magic number of %s target struct wrong\n", | |
1126 | t->to_shortname); | |
3e43a32a MS |
1127 | internal_error (__FILE__, __LINE__, |
1128 | _("failed internal consistency check")); | |
c0edd9ed JK |
1129 | } |
1130 | ||
1131 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1132 | if (*cur == t) | |
1133 | return 1; | |
1134 | ||
1135 | return 0; | |
1136 | } | |
1137 | ||
72f5cf0e | 1138 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1139 | current thread's thread-local storage with offset OFFSET. */ |
1140 | CORE_ADDR | |
1141 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1142 | { | |
1143 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1144 | struct target_ops *target; |
1145 | ||
1146 | for (target = current_target.beneath; | |
1147 | target != NULL; | |
1148 | target = target->beneath) | |
1149 | { | |
1150 | if (target->to_get_thread_local_address != NULL) | |
1151 | break; | |
1152 | } | |
9e35dae4 | 1153 | |
117de6a9 | 1154 | if (target != NULL |
f5656ead | 1155 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1156 | { |
1157 | ptid_t ptid = inferior_ptid; | |
1158 | volatile struct gdb_exception ex; | |
1159 | ||
1160 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1161 | { | |
1162 | CORE_ADDR lm_addr; | |
1163 | ||
1164 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1165 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1166 | objfile); |
1167 | /* If it's 0, throw the appropriate exception. */ | |
1168 | if (lm_addr == 0) | |
1169 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1170 | _("TLS load module not found")); | |
1171 | ||
3e43a32a MS |
1172 | addr = target->to_get_thread_local_address (target, ptid, |
1173 | lm_addr, offset); | |
9e35dae4 DJ |
1174 | } |
1175 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1176 | throw the error to some higher catcher. */ | |
1177 | if (ex.reason < 0) | |
1178 | { | |
1179 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1180 | ||
1181 | switch (ex.error) | |
1182 | { | |
1183 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1184 | error (_("Cannot find thread-local variables " |
1185 | "in this thread library.")); | |
9e35dae4 DJ |
1186 | break; |
1187 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1188 | if (objfile_is_library) | |
1189 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 1190 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1191 | else |
1192 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 1193 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1194 | break; |
1195 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1196 | if (objfile_is_library) | |
1197 | error (_("The inferior has not yet allocated storage for" | |
1198 | " thread-local variables in\n" | |
1199 | "the shared library `%s'\n" | |
1200 | "for %s"), | |
4262abfb | 1201 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1202 | else |
1203 | error (_("The inferior has not yet allocated storage for" | |
1204 | " thread-local variables in\n" | |
1205 | "the executable `%s'\n" | |
1206 | "for %s"), | |
4262abfb | 1207 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1208 | break; |
1209 | case TLS_GENERIC_ERROR: | |
1210 | if (objfile_is_library) | |
1211 | error (_("Cannot find thread-local storage for %s, " | |
1212 | "shared library %s:\n%s"), | |
1213 | target_pid_to_str (ptid), | |
4262abfb | 1214 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1215 | else |
1216 | error (_("Cannot find thread-local storage for %s, " | |
1217 | "executable file %s:\n%s"), | |
1218 | target_pid_to_str (ptid), | |
4262abfb | 1219 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1220 | break; |
1221 | default: | |
1222 | throw_exception (ex); | |
1223 | break; | |
1224 | } | |
1225 | } | |
1226 | } | |
1227 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1228 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1229 | else | |
1230 | error (_("Cannot find thread-local variables on this target")); | |
1231 | ||
1232 | return addr; | |
1233 | } | |
1234 | ||
6be7b56e PA |
1235 | const char * |
1236 | target_xfer_error_to_string (enum target_xfer_error err) | |
1237 | { | |
1238 | #define CASE(X) case X: return #X | |
1239 | switch (err) | |
1240 | { | |
1241 | CASE(TARGET_XFER_E_IO); | |
1242 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1243 | default: | |
1244 | return "<unknown>"; | |
1245 | } | |
1246 | #undef CASE | |
1247 | }; | |
1248 | ||
1249 | ||
c906108c SS |
1250 | #undef MIN |
1251 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1252 | ||
1253 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1254 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1255 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1256 | is responsible for freeing it. Return the number of bytes successfully | |
1257 | read. */ | |
1258 | ||
1259 | int | |
fba45db2 | 1260 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1261 | { |
c2e8b827 | 1262 | int tlen, offset, i; |
1b0ba102 | 1263 | gdb_byte buf[4]; |
c906108c SS |
1264 | int errcode = 0; |
1265 | char *buffer; | |
1266 | int buffer_allocated; | |
1267 | char *bufptr; | |
1268 | unsigned int nbytes_read = 0; | |
1269 | ||
6217bf3e MS |
1270 | gdb_assert (string); |
1271 | ||
c906108c SS |
1272 | /* Small for testing. */ |
1273 | buffer_allocated = 4; | |
1274 | buffer = xmalloc (buffer_allocated); | |
1275 | bufptr = buffer; | |
1276 | ||
c906108c SS |
1277 | while (len > 0) |
1278 | { | |
1279 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1280 | offset = memaddr & 3; | |
1281 | ||
1b0ba102 | 1282 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1283 | if (errcode != 0) |
1284 | { | |
1285 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1286 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1287 | a single byte. */ |
1288 | tlen = 1; | |
1289 | offset = 0; | |
b8eb5af0 | 1290 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1291 | if (errcode != 0) |
1292 | goto done; | |
1293 | } | |
1294 | ||
1295 | if (bufptr - buffer + tlen > buffer_allocated) | |
1296 | { | |
1297 | unsigned int bytes; | |
5d502164 | 1298 | |
c906108c SS |
1299 | bytes = bufptr - buffer; |
1300 | buffer_allocated *= 2; | |
1301 | buffer = xrealloc (buffer, buffer_allocated); | |
1302 | bufptr = buffer + bytes; | |
1303 | } | |
1304 | ||
1305 | for (i = 0; i < tlen; i++) | |
1306 | { | |
1307 | *bufptr++ = buf[i + offset]; | |
1308 | if (buf[i + offset] == '\000') | |
1309 | { | |
1310 | nbytes_read += i + 1; | |
1311 | goto done; | |
1312 | } | |
1313 | } | |
1314 | ||
1315 | memaddr += tlen; | |
1316 | len -= tlen; | |
1317 | nbytes_read += tlen; | |
1318 | } | |
c5aa993b | 1319 | done: |
6217bf3e | 1320 | *string = buffer; |
c906108c SS |
1321 | if (errnop != NULL) |
1322 | *errnop = errcode; | |
c906108c SS |
1323 | return nbytes_read; |
1324 | } | |
1325 | ||
07b82ea5 PA |
1326 | struct target_section_table * |
1327 | target_get_section_table (struct target_ops *target) | |
1328 | { | |
1329 | struct target_ops *t; | |
1330 | ||
1331 | if (targetdebug) | |
1332 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1333 | ||
1334 | for (t = target; t != NULL; t = t->beneath) | |
1335 | if (t->to_get_section_table != NULL) | |
1336 | return (*t->to_get_section_table) (t); | |
1337 | ||
1338 | return NULL; | |
1339 | } | |
1340 | ||
8db32d44 | 1341 | /* Find a section containing ADDR. */ |
07b82ea5 | 1342 | |
0542c86d | 1343 | struct target_section * |
8db32d44 AC |
1344 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1345 | { | |
07b82ea5 | 1346 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1347 | struct target_section *secp; |
07b82ea5 PA |
1348 | |
1349 | if (table == NULL) | |
1350 | return NULL; | |
1351 | ||
1352 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1353 | { |
1354 | if (addr >= secp->addr && addr < secp->endaddr) | |
1355 | return secp; | |
1356 | } | |
1357 | return NULL; | |
1358 | } | |
1359 | ||
e6e4e701 PA |
1360 | /* Read memory from the live target, even if currently inspecting a |
1361 | traceframe. The return is the same as that of target_read. */ | |
1362 | ||
1363 | static LONGEST | |
1364 | target_read_live_memory (enum target_object object, | |
1365 | ULONGEST memaddr, gdb_byte *myaddr, LONGEST len) | |
1366 | { | |
23d577b0 | 1367 | LONGEST ret; |
e6e4e701 PA |
1368 | struct cleanup *cleanup; |
1369 | ||
1370 | /* Switch momentarily out of tfind mode so to access live memory. | |
1371 | Note that this must not clear global state, such as the frame | |
1372 | cache, which must still remain valid for the previous traceframe. | |
1373 | We may be _building_ the frame cache at this point. */ | |
1374 | cleanup = make_cleanup_restore_traceframe_number (); | |
1375 | set_traceframe_number (-1); | |
1376 | ||
1377 | ret = target_read (current_target.beneath, object, NULL, | |
1378 | myaddr, memaddr, len); | |
1379 | ||
1380 | do_cleanups (cleanup); | |
1381 | return ret; | |
1382 | } | |
1383 | ||
1384 | /* Using the set of read-only target sections of OPS, read live | |
1385 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1386 | top-most target again. |
1387 | ||
1388 | For interface/parameters/return description see target.h, | |
1389 | to_xfer_partial. */ | |
e6e4e701 PA |
1390 | |
1391 | static LONGEST | |
1392 | memory_xfer_live_readonly_partial (struct target_ops *ops, | |
1393 | enum target_object object, | |
1394 | gdb_byte *readbuf, ULONGEST memaddr, | |
1395 | LONGEST len) | |
1396 | { | |
1397 | struct target_section *secp; | |
1398 | struct target_section_table *table; | |
1399 | ||
1400 | secp = target_section_by_addr (ops, memaddr); | |
1401 | if (secp != NULL | |
2b2848e2 DE |
1402 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1403 | secp->the_bfd_section) | |
e6e4e701 PA |
1404 | & SEC_READONLY)) |
1405 | { | |
1406 | struct target_section *p; | |
1407 | ULONGEST memend = memaddr + len; | |
1408 | ||
1409 | table = target_get_section_table (ops); | |
1410 | ||
1411 | for (p = table->sections; p < table->sections_end; p++) | |
1412 | { | |
1413 | if (memaddr >= p->addr) | |
1414 | { | |
1415 | if (memend <= p->endaddr) | |
1416 | { | |
1417 | /* Entire transfer is within this section. */ | |
1418 | return target_read_live_memory (object, memaddr, | |
1419 | readbuf, len); | |
1420 | } | |
1421 | else if (memaddr >= p->endaddr) | |
1422 | { | |
1423 | /* This section ends before the transfer starts. */ | |
1424 | continue; | |
1425 | } | |
1426 | else | |
1427 | { | |
1428 | /* This section overlaps the transfer. Just do half. */ | |
1429 | len = p->endaddr - memaddr; | |
1430 | return target_read_live_memory (object, memaddr, | |
1431 | readbuf, len); | |
1432 | } | |
1433 | } | |
1434 | } | |
1435 | } | |
1436 | ||
1437 | return 0; | |
1438 | } | |
1439 | ||
7f79c47e DE |
1440 | /* Perform a partial memory transfer. |
1441 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 DJ |
1442 | |
1443 | static LONGEST | |
f0ba3972 PA |
1444 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
1445 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1446 | LONGEST len) | |
0779438d | 1447 | { |
cf7a04e8 DJ |
1448 | LONGEST res; |
1449 | int reg_len; | |
1450 | struct mem_region *region; | |
4e5d721f | 1451 | struct inferior *inf; |
cf7a04e8 | 1452 | |
07b82ea5 PA |
1453 | /* For accesses to unmapped overlay sections, read directly from |
1454 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1455 | if (readbuf != NULL && overlay_debugging) | |
1456 | { | |
1457 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1458 | |
07b82ea5 PA |
1459 | if (pc_in_unmapped_range (memaddr, section)) |
1460 | { | |
1461 | struct target_section_table *table | |
1462 | = target_get_section_table (ops); | |
1463 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1464 | |
07b82ea5 PA |
1465 | memaddr = overlay_mapped_address (memaddr, section); |
1466 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1467 | memaddr, len, | |
1468 | table->sections, | |
1469 | table->sections_end, | |
1470 | section_name); | |
1471 | } | |
1472 | } | |
1473 | ||
1474 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1475 | if (readbuf != NULL && trust_readonly) |
1476 | { | |
0542c86d | 1477 | struct target_section *secp; |
07b82ea5 | 1478 | struct target_section_table *table; |
cf7a04e8 DJ |
1479 | |
1480 | secp = target_section_by_addr (ops, memaddr); | |
1481 | if (secp != NULL | |
2b2848e2 DE |
1482 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1483 | secp->the_bfd_section) | |
cf7a04e8 | 1484 | & SEC_READONLY)) |
07b82ea5 PA |
1485 | { |
1486 | table = target_get_section_table (ops); | |
1487 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1488 | memaddr, len, | |
1489 | table->sections, | |
1490 | table->sections_end, | |
1491 | NULL); | |
1492 | } | |
98646950 UW |
1493 | } |
1494 | ||
e6e4e701 PA |
1495 | /* If reading unavailable memory in the context of traceframes, and |
1496 | this address falls within a read-only section, fallback to | |
1497 | reading from live memory. */ | |
1498 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1499 | { | |
1500 | VEC(mem_range_s) *available; | |
1501 | ||
1502 | /* If we fail to get the set of available memory, then the | |
1503 | target does not support querying traceframe info, and so we | |
1504 | attempt reading from the traceframe anyway (assuming the | |
1505 | target implements the old QTro packet then). */ | |
1506 | if (traceframe_available_memory (&available, memaddr, len)) | |
1507 | { | |
1508 | struct cleanup *old_chain; | |
1509 | ||
1510 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1511 | ||
1512 | if (VEC_empty (mem_range_s, available) | |
1513 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1514 | { | |
1515 | /* Don't read into the traceframe's available | |
1516 | memory. */ | |
1517 | if (!VEC_empty (mem_range_s, available)) | |
1518 | { | |
1519 | LONGEST oldlen = len; | |
1520 | ||
1521 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1522 | gdb_assert (len <= oldlen); | |
1523 | } | |
1524 | ||
1525 | do_cleanups (old_chain); | |
1526 | ||
1527 | /* This goes through the topmost target again. */ | |
1528 | res = memory_xfer_live_readonly_partial (ops, object, | |
1529 | readbuf, memaddr, len); | |
1530 | if (res > 0) | |
1531 | return res; | |
1532 | ||
1533 | /* No use trying further, we know some memory starting | |
1534 | at MEMADDR isn't available. */ | |
6be7b56e | 1535 | return TARGET_XFER_E_UNAVAILABLE; |
e6e4e701 PA |
1536 | } |
1537 | ||
1538 | /* Don't try to read more than how much is available, in | |
1539 | case the target implements the deprecated QTro packet to | |
1540 | cater for older GDBs (the target's knowledge of read-only | |
1541 | sections may be outdated by now). */ | |
1542 | len = VEC_index (mem_range_s, available, 0)->length; | |
1543 | ||
1544 | do_cleanups (old_chain); | |
1545 | } | |
1546 | } | |
1547 | ||
cf7a04e8 DJ |
1548 | /* Try GDB's internal data cache. */ |
1549 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1550 | /* region->hi == 0 means there's no upper bound. */ |
1551 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1552 | reg_len = len; |
1553 | else | |
1554 | reg_len = region->hi - memaddr; | |
1555 | ||
1556 | switch (region->attrib.mode) | |
1557 | { | |
1558 | case MEM_RO: | |
1559 | if (writebuf != NULL) | |
1560 | return -1; | |
1561 | break; | |
1562 | ||
1563 | case MEM_WO: | |
1564 | if (readbuf != NULL) | |
1565 | return -1; | |
1566 | break; | |
a76d924d DJ |
1567 | |
1568 | case MEM_FLASH: | |
1569 | /* We only support writing to flash during "load" for now. */ | |
1570 | if (writebuf != NULL) | |
1571 | error (_("Writing to flash memory forbidden in this context")); | |
1572 | break; | |
4b5752d0 VP |
1573 | |
1574 | case MEM_NONE: | |
1575 | return -1; | |
cf7a04e8 DJ |
1576 | } |
1577 | ||
6c95b8df PA |
1578 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1579 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1580 | else | |
1581 | inf = NULL; | |
4e5d721f DE |
1582 | |
1583 | if (inf != NULL | |
2f4d8875 PA |
1584 | /* The dcache reads whole cache lines; that doesn't play well |
1585 | with reading from a trace buffer, because reading outside of | |
1586 | the collected memory range fails. */ | |
1587 | && get_traceframe_number () == -1 | |
4e5d721f DE |
1588 | && (region->attrib.cache |
1589 | || (stack_cache_enabled_p && object == TARGET_OBJECT_STACK_MEMORY))) | |
cf7a04e8 | 1590 | { |
cf7a04e8 | 1591 | if (readbuf != NULL) |
25f122dc | 1592 | res = dcache_xfer_memory (ops, target_dcache, memaddr, readbuf, |
cf7a04e8 DJ |
1593 | reg_len, 0); |
1594 | else | |
1595 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1596 | correctness dcache_xfer_memory should take readbuf and | |
1597 | writebuf. */ | |
25f122dc | 1598 | res = dcache_xfer_memory (ops, target_dcache, memaddr, |
cf7a04e8 DJ |
1599 | (void *) writebuf, |
1600 | reg_len, 1); | |
1601 | if (res <= 0) | |
1602 | return -1; | |
1603 | else | |
f0ba3972 | 1604 | return res; |
cf7a04e8 DJ |
1605 | } |
1606 | ||
1607 | /* If none of those methods found the memory we wanted, fall back | |
1608 | to a target partial transfer. Normally a single call to | |
1609 | to_xfer_partial is enough; if it doesn't recognize an object | |
1610 | it will call the to_xfer_partial of the next target down. | |
1611 | But for memory this won't do. Memory is the only target | |
1612 | object which can be read from more than one valid target. | |
1613 | A core file, for instance, could have some of memory but | |
1614 | delegate other bits to the target below it. So, we must | |
1615 | manually try all targets. */ | |
1616 | ||
1617 | do | |
1618 | { | |
1619 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1620 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1621 | if (res > 0) |
8defab1a | 1622 | break; |
cf7a04e8 | 1623 | |
5ad3a4ca DJ |
1624 | /* We want to continue past core files to executables, but not |
1625 | past a running target's memory. */ | |
c35b1492 | 1626 | if (ops->to_has_all_memory (ops)) |
8defab1a | 1627 | break; |
5ad3a4ca | 1628 | |
cf7a04e8 DJ |
1629 | ops = ops->beneath; |
1630 | } | |
1631 | while (ops != NULL); | |
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 | ||
1637 | if (res > 0 | |
1638 | && inf != NULL | |
1639 | && writebuf != NULL | |
1640 | && !region->attrib.cache | |
1641 | && stack_cache_enabled_p | |
1642 | && object != TARGET_OBJECT_STACK_MEMORY) | |
1643 | { | |
7d4f32d3 | 1644 | dcache_update (target_dcache, memaddr, (void *) writebuf, res); |
41dcd03f DE |
1645 | } |
1646 | ||
cf7a04e8 DJ |
1647 | /* If we still haven't got anything, return the last error. We |
1648 | give up. */ | |
1649 | return res; | |
0779438d AC |
1650 | } |
1651 | ||
f0ba3972 PA |
1652 | /* Perform a partial memory transfer. For docs see target.h, |
1653 | to_xfer_partial. */ | |
1654 | ||
1655 | static LONGEST | |
1656 | memory_xfer_partial (struct target_ops *ops, enum target_object object, | |
1657 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1658 | LONGEST len) | |
1659 | { | |
1660 | int res; | |
1661 | ||
1662 | /* Zero length requests are ok and require no work. */ | |
1663 | if (len == 0) | |
1664 | return 0; | |
1665 | ||
1666 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1667 | breakpoint insns, thus hiding out from higher layers whether | |
1668 | there are software breakpoints inserted in the code stream. */ | |
1669 | if (readbuf != NULL) | |
1670 | { | |
1671 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len); | |
1672 | ||
1673 | if (res > 0 && !show_memory_breakpoints) | |
1674 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); | |
1675 | } | |
1676 | else | |
1677 | { | |
1678 | void *buf; | |
1679 | struct cleanup *old_chain; | |
1680 | ||
1681 | buf = xmalloc (len); | |
1682 | old_chain = make_cleanup (xfree, buf); | |
1683 | memcpy (buf, writebuf, len); | |
1684 | ||
1685 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
1686 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len); | |
1687 | ||
1688 | do_cleanups (old_chain); | |
1689 | } | |
1690 | ||
1691 | return res; | |
1692 | } | |
1693 | ||
8defab1a DJ |
1694 | static void |
1695 | restore_show_memory_breakpoints (void *arg) | |
1696 | { | |
1697 | show_memory_breakpoints = (uintptr_t) arg; | |
1698 | } | |
1699 | ||
1700 | struct cleanup * | |
1701 | make_show_memory_breakpoints_cleanup (int show) | |
1702 | { | |
1703 | int current = show_memory_breakpoints; | |
8defab1a | 1704 | |
5d502164 | 1705 | show_memory_breakpoints = show; |
8defab1a DJ |
1706 | return make_cleanup (restore_show_memory_breakpoints, |
1707 | (void *) (uintptr_t) current); | |
1708 | } | |
1709 | ||
7f79c47e DE |
1710 | /* For docs see target.h, to_xfer_partial. */ |
1711 | ||
6be7b56e | 1712 | LONGEST |
27394598 AC |
1713 | target_xfer_partial (struct target_ops *ops, |
1714 | enum target_object object, const char *annex, | |
1715 | void *readbuf, const void *writebuf, | |
1716 | ULONGEST offset, LONGEST len) | |
1717 | { | |
1718 | LONGEST retval; | |
1719 | ||
1720 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1721 | |
d914c394 SS |
1722 | if (writebuf && !may_write_memory) |
1723 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1724 | core_addr_to_string_nz (offset), plongest (len)); | |
1725 | ||
cf7a04e8 DJ |
1726 | /* If this is a memory transfer, let the memory-specific code |
1727 | have a look at it instead. Memory transfers are more | |
1728 | complicated. */ | |
4e5d721f DE |
1729 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY) |
1730 | retval = memory_xfer_partial (ops, object, readbuf, | |
1731 | writebuf, offset, len); | |
cf7a04e8 DJ |
1732 | else |
1733 | { | |
1734 | enum target_object raw_object = object; | |
1735 | ||
1736 | /* If this is a raw memory transfer, request the normal | |
1737 | memory object from other layers. */ | |
1738 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1739 | raw_object = TARGET_OBJECT_MEMORY; | |
1740 | ||
1741 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1742 | writebuf, offset, len); | |
1743 | } | |
1744 | ||
27394598 AC |
1745 | if (targetdebug) |
1746 | { | |
1747 | const unsigned char *myaddr = NULL; | |
1748 | ||
1749 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
1750 | "%s:target_xfer_partial " |
1751 | "(%d, %s, %s, %s, %s, %s) = %s", | |
27394598 AC |
1752 | ops->to_shortname, |
1753 | (int) object, | |
1754 | (annex ? annex : "(null)"), | |
53b71562 JB |
1755 | host_address_to_string (readbuf), |
1756 | host_address_to_string (writebuf), | |
0b1553bc UW |
1757 | core_addr_to_string_nz (offset), |
1758 | plongest (len), plongest (retval)); | |
27394598 AC |
1759 | |
1760 | if (readbuf) | |
1761 | myaddr = readbuf; | |
1762 | if (writebuf) | |
1763 | myaddr = writebuf; | |
1764 | if (retval > 0 && myaddr != NULL) | |
1765 | { | |
1766 | int i; | |
2bc416ba | 1767 | |
27394598 AC |
1768 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1769 | for (i = 0; i < retval; i++) | |
1770 | { | |
53b71562 | 1771 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1772 | { |
1773 | if (targetdebug < 2 && i > 0) | |
1774 | { | |
1775 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1776 | break; | |
1777 | } | |
1778 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1779 | } | |
2bc416ba | 1780 | |
27394598 AC |
1781 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1782 | } | |
1783 | } | |
2bc416ba | 1784 | |
27394598 AC |
1785 | fputc_unfiltered ('\n', gdb_stdlog); |
1786 | } | |
1787 | return retval; | |
1788 | } | |
1789 | ||
578d3588 PA |
1790 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1791 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
1792 | a target_xfer_error value if any error occurs. | |
c906108c SS |
1793 | |
1794 | If an error occurs, no guarantee is made about the contents of the data at | |
1795 | MYADDR. In particular, the caller should not depend upon partial reads | |
1796 | filling the buffer with good data. There is no way for the caller to know | |
1797 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1798 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1799 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1800 | |
1801 | int | |
1b162304 | 1802 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1803 | { |
c35b1492 PA |
1804 | /* Dispatch to the topmost target, not the flattened current_target. |
1805 | Memory accesses check target->to_has_(all_)memory, and the | |
1806 | flattened target doesn't inherit those. */ | |
1807 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1808 | myaddr, memaddr, len) == len) |
1809 | return 0; | |
0779438d | 1810 | else |
578d3588 | 1811 | return TARGET_XFER_E_IO; |
c906108c SS |
1812 | } |
1813 | ||
4e5d721f DE |
1814 | /* Like target_read_memory, but specify explicitly that this is a read from |
1815 | the target's stack. This may trigger different cache behavior. */ | |
1816 | ||
1817 | int | |
45aa4659 | 1818 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f DE |
1819 | { |
1820 | /* Dispatch to the topmost target, not the flattened current_target. | |
1821 | Memory accesses check target->to_has_(all_)memory, and the | |
1822 | flattened target doesn't inherit those. */ | |
1823 | ||
1824 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, | |
1825 | myaddr, memaddr, len) == len) | |
1826 | return 0; | |
1827 | else | |
578d3588 | 1828 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1829 | } |
1830 | ||
7f79c47e | 1831 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
578d3588 PA |
1832 | Returns either 0 for success or a target_xfer_error value if any |
1833 | error occurs. If an error occurs, no guarantee is made about how | |
1834 | much data got written. Callers that can deal with partial writes | |
1835 | should call target_write. */ | |
7f79c47e | 1836 | |
c906108c | 1837 | int |
45aa4659 | 1838 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1839 | { |
c35b1492 PA |
1840 | /* Dispatch to the topmost target, not the flattened current_target. |
1841 | Memory accesses check target->to_has_(all_)memory, and the | |
1842 | flattened target doesn't inherit those. */ | |
1843 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1844 | myaddr, memaddr, len) == len) |
1845 | return 0; | |
0779438d | 1846 | else |
578d3588 | 1847 | return TARGET_XFER_E_IO; |
c906108c | 1848 | } |
c5aa993b | 1849 | |
f0ba3972 | 1850 | /* Write LEN bytes from MYADDR to target raw memory at address |
578d3588 PA |
1851 | MEMADDR. Returns either 0 for success or a target_xfer_error value |
1852 | if any error occurs. If an error occurs, no guarantee is made | |
1853 | about how much data got written. Callers that can deal with | |
1854 | partial writes should call target_write. */ | |
f0ba3972 PA |
1855 | |
1856 | int | |
45aa4659 | 1857 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 PA |
1858 | { |
1859 | /* Dispatch to the topmost target, not the flattened current_target. | |
1860 | Memory accesses check target->to_has_(all_)memory, and the | |
1861 | flattened target doesn't inherit those. */ | |
1862 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1863 | myaddr, memaddr, len) == len) | |
1864 | return 0; | |
1865 | else | |
578d3588 | 1866 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1867 | } |
1868 | ||
fd79ecee DJ |
1869 | /* Fetch the target's memory map. */ |
1870 | ||
1871 | VEC(mem_region_s) * | |
1872 | target_memory_map (void) | |
1873 | { | |
1874 | VEC(mem_region_s) *result; | |
1875 | struct mem_region *last_one, *this_one; | |
1876 | int ix; | |
1877 | struct target_ops *t; | |
1878 | ||
1879 | if (targetdebug) | |
1880 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1881 | ||
1882 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1883 | if (t->to_memory_map != NULL) | |
1884 | break; | |
1885 | ||
1886 | if (t == NULL) | |
1887 | return NULL; | |
1888 | ||
1889 | result = t->to_memory_map (t); | |
1890 | if (result == NULL) | |
1891 | return NULL; | |
1892 | ||
1893 | qsort (VEC_address (mem_region_s, result), | |
1894 | VEC_length (mem_region_s, result), | |
1895 | sizeof (struct mem_region), mem_region_cmp); | |
1896 | ||
1897 | /* Check that regions do not overlap. Simultaneously assign | |
1898 | a numbering for the "mem" commands to use to refer to | |
1899 | each region. */ | |
1900 | last_one = NULL; | |
1901 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1902 | { | |
1903 | this_one->number = ix; | |
1904 | ||
1905 | if (last_one && last_one->hi > this_one->lo) | |
1906 | { | |
1907 | warning (_("Overlapping regions in memory map: ignoring")); | |
1908 | VEC_free (mem_region_s, result); | |
1909 | return NULL; | |
1910 | } | |
1911 | last_one = this_one; | |
1912 | } | |
1913 | ||
1914 | return result; | |
1915 | } | |
1916 | ||
a76d924d DJ |
1917 | void |
1918 | target_flash_erase (ULONGEST address, LONGEST length) | |
1919 | { | |
1920 | struct target_ops *t; | |
1921 | ||
1922 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1923 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1924 | { |
1925 | if (targetdebug) | |
1926 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1927 | hex_string (address), phex (length, 0)); | |
1928 | t->to_flash_erase (t, address, length); | |
1929 | return; | |
1930 | } | |
a76d924d DJ |
1931 | |
1932 | tcomplain (); | |
1933 | } | |
1934 | ||
1935 | void | |
1936 | target_flash_done (void) | |
1937 | { | |
1938 | struct target_ops *t; | |
1939 | ||
1940 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1941 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1942 | { |
1943 | if (targetdebug) | |
1944 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1945 | t->to_flash_done (t); | |
1946 | return; | |
1947 | } | |
a76d924d DJ |
1948 | |
1949 | tcomplain (); | |
1950 | } | |
1951 | ||
920d2a44 AC |
1952 | static void |
1953 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1954 | struct cmd_list_element *c, const char *value) | |
1955 | { | |
3e43a32a MS |
1956 | fprintf_filtered (file, |
1957 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1958 | value); |
1959 | } | |
3a11626d | 1960 | |
1e3ff5ad AC |
1961 | /* More generic transfers. */ |
1962 | ||
0088c768 | 1963 | static LONGEST |
8aa91c1e | 1964 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1965 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1966 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1967 | { |
1968 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1969 | && ops->deprecated_xfer_memory != NULL) |
1970 | /* If available, fall back to the target's | |
1971 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1972 | { |
4b8a223f | 1973 | int xfered = -1; |
5d502164 | 1974 | |
0088c768 | 1975 | errno = 0; |
4b8a223f AC |
1976 | if (writebuf != NULL) |
1977 | { | |
1978 | void *buffer = xmalloc (len); | |
1979 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1980 | |
4b8a223f | 1981 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1982 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1983 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1984 | do_cleanups (cleanup); |
1985 | } | |
1986 | if (readbuf != NULL) | |
244e85c8 MS |
1987 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1988 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1989 | if (xfered > 0) |
1990 | return xfered; | |
1991 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1992 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1993 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1994 | return 0; |
1995 | else | |
1996 | return -1; | |
1997 | } | |
1998 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1999 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
2000 | readbuf, writebuf, offset, len); | |
2001 | else | |
2002 | return -1; | |
2003 | } | |
2004 | ||
2005 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
2006 | it does not need to handle memory specially; it just passes all | |
2007 | requests down the stack. */ | |
2008 | ||
2009 | static LONGEST | |
2010 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
2011 | const char *annex, gdb_byte *readbuf, | |
2012 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
2013 | { | |
2014 | if (ops->beneath != NULL) | |
2015 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2016 | readbuf, writebuf, offset, len); | |
0088c768 AC |
2017 | else |
2018 | return -1; | |
2019 | } | |
2020 | ||
7f79c47e | 2021 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2022 | |
13547ab6 | 2023 | static LONGEST |
1e3ff5ad AC |
2024 | target_read_partial (struct target_ops *ops, |
2025 | enum target_object object, | |
1b0ba102 | 2026 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2027 | ULONGEST offset, LONGEST len) |
2028 | { | |
27394598 | 2029 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
2030 | } |
2031 | ||
13547ab6 | 2032 | static LONGEST |
1e3ff5ad AC |
2033 | target_write_partial (struct target_ops *ops, |
2034 | enum target_object object, | |
1b0ba102 | 2035 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
2036 | ULONGEST offset, LONGEST len) |
2037 | { | |
27394598 | 2038 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
2039 | } |
2040 | ||
2041 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2042 | |
2043 | /* For docs on target_read see target.h. */ | |
2044 | ||
1e3ff5ad AC |
2045 | LONGEST |
2046 | target_read (struct target_ops *ops, | |
2047 | enum target_object object, | |
1b0ba102 | 2048 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2049 | ULONGEST offset, LONGEST len) |
2050 | { | |
2051 | LONGEST xfered = 0; | |
5d502164 | 2052 | |
1e3ff5ad AC |
2053 | while (xfered < len) |
2054 | { | |
0088c768 | 2055 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 2056 | (gdb_byte *) buf + xfered, |
0088c768 | 2057 | offset + xfered, len - xfered); |
5d502164 | 2058 | |
1e3ff5ad | 2059 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
2060 | if (xfer == 0) |
2061 | return xfered; | |
2062 | if (xfer < 0) | |
0088c768 | 2063 | return -1; |
1e3ff5ad AC |
2064 | xfered += xfer; |
2065 | QUIT; | |
2066 | } | |
2067 | return len; | |
2068 | } | |
2069 | ||
f1a507a1 JB |
2070 | /* Assuming that the entire [begin, end) range of memory cannot be |
2071 | read, try to read whatever subrange is possible to read. | |
2072 | ||
2073 | The function returns, in RESULT, either zero or one memory block. | |
2074 | If there's a readable subrange at the beginning, it is completely | |
2075 | read and returned. Any further readable subrange will not be read. | |
2076 | Otherwise, if there's a readable subrange at the end, it will be | |
2077 | completely read and returned. Any readable subranges before it | |
2078 | (obviously, not starting at the beginning), will be ignored. In | |
2079 | other cases -- either no readable subrange, or readable subrange(s) | |
2080 | that is neither at the beginning, or end, nothing is returned. | |
2081 | ||
2082 | The purpose of this function is to handle a read across a boundary | |
2083 | of accessible memory in a case when memory map is not available. | |
2084 | The above restrictions are fine for this case, but will give | |
2085 | incorrect results if the memory is 'patchy'. However, supporting | |
2086 | 'patchy' memory would require trying to read every single byte, | |
2087 | and it seems unacceptable solution. Explicit memory map is | |
2088 | recommended for this case -- and target_read_memory_robust will | |
2089 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2090 | |
2091 | static void | |
3e43a32a MS |
2092 | read_whatever_is_readable (struct target_ops *ops, |
2093 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2094 | VEC(memory_read_result_s) **result) |
d5086790 | 2095 | { |
f1a507a1 | 2096 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2097 | ULONGEST current_begin = begin; |
2098 | ULONGEST current_end = end; | |
2099 | int forward; | |
2100 | memory_read_result_s r; | |
2101 | ||
2102 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2103 | if (end - begin <= 1) | |
13b3fd9b MS |
2104 | { |
2105 | xfree (buf); | |
2106 | return; | |
2107 | } | |
8dedea02 VP |
2108 | |
2109 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2110 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2111 | at the boundary of accessible region. */ |
2112 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2113 | buf, begin, 1) == 1) | |
2114 | { | |
2115 | forward = 1; | |
2116 | ++current_begin; | |
2117 | } | |
2118 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2119 | buf + (end-begin) - 1, end - 1, 1) == 1) | |
2120 | { | |
2121 | forward = 0; | |
2122 | --current_end; | |
2123 | } | |
2124 | else | |
2125 | { | |
13b3fd9b | 2126 | xfree (buf); |
8dedea02 VP |
2127 | return; |
2128 | } | |
2129 | ||
2130 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2131 | found to be not readable as a whole. | |
2132 | ||
2133 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2134 | so there's no point trying further. */ | |
2135 | while (current_end - current_begin > 1) | |
2136 | { | |
2137 | ULONGEST first_half_begin, first_half_end; | |
2138 | ULONGEST second_half_begin, second_half_end; | |
2139 | LONGEST xfer; | |
8dedea02 | 2140 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2141 | |
8dedea02 VP |
2142 | if (forward) |
2143 | { | |
2144 | first_half_begin = current_begin; | |
2145 | first_half_end = middle; | |
2146 | second_half_begin = middle; | |
2147 | second_half_end = current_end; | |
2148 | } | |
2149 | else | |
2150 | { | |
2151 | first_half_begin = middle; | |
2152 | first_half_end = current_end; | |
2153 | second_half_begin = current_begin; | |
2154 | second_half_end = middle; | |
2155 | } | |
2156 | ||
2157 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2158 | buf + (first_half_begin - begin), | |
2159 | first_half_begin, | |
2160 | first_half_end - first_half_begin); | |
2161 | ||
2162 | if (xfer == first_half_end - first_half_begin) | |
2163 | { | |
c378eb4e | 2164 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2165 | other half. */ |
8dedea02 VP |
2166 | current_begin = second_half_begin; |
2167 | current_end = second_half_end; | |
2168 | } | |
2169 | else | |
2170 | { | |
c378eb4e MS |
2171 | /* This half is not readable. Because we've tried one byte, we |
2172 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2173 | iteration to divide again and try to read. |
2174 | ||
2175 | We don't handle the other half, because this function only tries | |
2176 | to read a single readable subrange. */ | |
2177 | current_begin = first_half_begin; | |
2178 | current_end = first_half_end; | |
2179 | } | |
2180 | } | |
2181 | ||
2182 | if (forward) | |
2183 | { | |
2184 | /* The [begin, current_begin) range has been read. */ | |
2185 | r.begin = begin; | |
2186 | r.end = current_begin; | |
2187 | r.data = buf; | |
2188 | } | |
2189 | else | |
2190 | { | |
2191 | /* The [current_end, end) range has been read. */ | |
2192 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2193 | |
8dedea02 VP |
2194 | r.data = xmalloc (rlen); |
2195 | memcpy (r.data, buf + current_end - begin, rlen); | |
2196 | r.begin = current_end; | |
2197 | r.end = end; | |
2198 | xfree (buf); | |
2199 | } | |
2200 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2201 | } | |
2202 | ||
2203 | void | |
2204 | free_memory_read_result_vector (void *x) | |
2205 | { | |
2206 | VEC(memory_read_result_s) *v = x; | |
2207 | memory_read_result_s *current; | |
2208 | int ix; | |
2209 | ||
2210 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2211 | { | |
2212 | xfree (current->data); | |
2213 | } | |
2214 | VEC_free (memory_read_result_s, v); | |
2215 | } | |
2216 | ||
2217 | VEC(memory_read_result_s) * | |
2218 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2219 | { | |
2220 | VEC(memory_read_result_s) *result = 0; | |
2221 | ||
2222 | LONGEST xfered = 0; | |
d5086790 VP |
2223 | while (xfered < len) |
2224 | { | |
8dedea02 VP |
2225 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2226 | LONGEST rlen; | |
5d502164 | 2227 | |
8dedea02 VP |
2228 | /* If there is no explicit region, a fake one should be created. */ |
2229 | gdb_assert (region); | |
2230 | ||
2231 | if (region->hi == 0) | |
2232 | rlen = len - xfered; | |
2233 | else | |
2234 | rlen = region->hi - offset; | |
2235 | ||
2236 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2237 | { |
c378eb4e | 2238 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2239 | if the region is explicitly marked inaccessible, or |
2240 | 'inaccessible-by-default' is in effect. */ | |
2241 | xfered += rlen; | |
2242 | } | |
2243 | else | |
2244 | { | |
2245 | LONGEST to_read = min (len - xfered, rlen); | |
2246 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2247 | ||
2248 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2249 | (gdb_byte *) buffer, | |
2250 | offset + xfered, to_read); | |
2251 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2252 | if (xfer <= 0) |
d5086790 | 2253 | { |
c378eb4e | 2254 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2255 | some subrange. */ |
2256 | xfree (buffer); | |
3e43a32a MS |
2257 | read_whatever_is_readable (ops, offset + xfered, |
2258 | offset + xfered + to_read, &result); | |
8dedea02 | 2259 | xfered += to_read; |
d5086790 | 2260 | } |
8dedea02 VP |
2261 | else |
2262 | { | |
2263 | struct memory_read_result r; | |
2264 | r.data = buffer; | |
2265 | r.begin = offset + xfered; | |
2266 | r.end = r.begin + xfer; | |
2267 | VEC_safe_push (memory_read_result_s, result, &r); | |
2268 | xfered += xfer; | |
2269 | } | |
2270 | QUIT; | |
d5086790 | 2271 | } |
d5086790 | 2272 | } |
8dedea02 | 2273 | return result; |
d5086790 VP |
2274 | } |
2275 | ||
8dedea02 | 2276 | |
cf7a04e8 DJ |
2277 | /* An alternative to target_write with progress callbacks. */ |
2278 | ||
1e3ff5ad | 2279 | LONGEST |
cf7a04e8 DJ |
2280 | target_write_with_progress (struct target_ops *ops, |
2281 | enum target_object object, | |
2282 | const char *annex, const gdb_byte *buf, | |
2283 | ULONGEST offset, LONGEST len, | |
2284 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2285 | { |
2286 | LONGEST xfered = 0; | |
a76d924d DJ |
2287 | |
2288 | /* Give the progress callback a chance to set up. */ | |
2289 | if (progress) | |
2290 | (*progress) (0, baton); | |
2291 | ||
1e3ff5ad AC |
2292 | while (xfered < len) |
2293 | { | |
2294 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 2295 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 2296 | offset + xfered, len - xfered); |
cf7a04e8 | 2297 | |
13547ab6 DJ |
2298 | if (xfer == 0) |
2299 | return xfered; | |
2300 | if (xfer < 0) | |
0088c768 | 2301 | return -1; |
cf7a04e8 DJ |
2302 | |
2303 | if (progress) | |
2304 | (*progress) (xfer, baton); | |
2305 | ||
1e3ff5ad AC |
2306 | xfered += xfer; |
2307 | QUIT; | |
2308 | } | |
2309 | return len; | |
2310 | } | |
2311 | ||
7f79c47e DE |
2312 | /* For docs on target_write see target.h. */ |
2313 | ||
cf7a04e8 DJ |
2314 | LONGEST |
2315 | target_write (struct target_ops *ops, | |
2316 | enum target_object object, | |
2317 | const char *annex, const gdb_byte *buf, | |
2318 | ULONGEST offset, LONGEST len) | |
2319 | { | |
2320 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2321 | NULL, NULL); | |
2322 | } | |
2323 | ||
159f81f3 DJ |
2324 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2325 | the size of the transferred data. PADDING additional bytes are | |
2326 | available in *BUF_P. This is a helper function for | |
2327 | target_read_alloc; see the declaration of that function for more | |
2328 | information. */ | |
13547ab6 | 2329 | |
159f81f3 DJ |
2330 | static LONGEST |
2331 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2332 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2333 | { |
2334 | size_t buf_alloc, buf_pos; | |
2335 | gdb_byte *buf; | |
2336 | LONGEST n; | |
2337 | ||
2338 | /* This function does not have a length parameter; it reads the | |
2339 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2340 | from one target and partly from another (in a different stratum, | |
2341 | e.g. a core file and an executable). Both reasons make it | |
2342 | unsuitable for reading memory. */ | |
2343 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2344 | ||
2345 | /* Start by reading up to 4K at a time. The target will throttle | |
2346 | this number down if necessary. */ | |
2347 | buf_alloc = 4096; | |
2348 | buf = xmalloc (buf_alloc); | |
2349 | buf_pos = 0; | |
2350 | while (1) | |
2351 | { | |
2352 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 2353 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
2354 | if (n < 0) |
2355 | { | |
2356 | /* An error occurred. */ | |
2357 | xfree (buf); | |
2358 | return -1; | |
2359 | } | |
2360 | else if (n == 0) | |
2361 | { | |
2362 | /* Read all there was. */ | |
2363 | if (buf_pos == 0) | |
2364 | xfree (buf); | |
2365 | else | |
2366 | *buf_p = buf; | |
2367 | return buf_pos; | |
2368 | } | |
2369 | ||
2370 | buf_pos += n; | |
2371 | ||
2372 | /* If the buffer is filling up, expand it. */ | |
2373 | if (buf_alloc < buf_pos * 2) | |
2374 | { | |
2375 | buf_alloc *= 2; | |
2376 | buf = xrealloc (buf, buf_alloc); | |
2377 | } | |
2378 | ||
2379 | QUIT; | |
2380 | } | |
2381 | } | |
2382 | ||
159f81f3 DJ |
2383 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2384 | the size of the transferred data. See the declaration in "target.h" | |
2385 | function for more information about the return value. */ | |
2386 | ||
2387 | LONGEST | |
2388 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2389 | const char *annex, gdb_byte **buf_p) | |
2390 | { | |
2391 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2392 | } | |
2393 | ||
2394 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2395 | returned as a string, allocated using xmalloc. If an error occurs | |
2396 | or the transfer is unsupported, NULL is returned. Empty objects | |
2397 | are returned as allocated but empty strings. A warning is issued | |
2398 | if the result contains any embedded NUL bytes. */ | |
2399 | ||
2400 | char * | |
2401 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2402 | const char *annex) | |
2403 | { | |
39086a0e PA |
2404 | gdb_byte *buffer; |
2405 | char *bufstr; | |
7313baad | 2406 | LONGEST i, transferred; |
159f81f3 | 2407 | |
39086a0e PA |
2408 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2409 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2410 | |
2411 | if (transferred < 0) | |
2412 | return NULL; | |
2413 | ||
2414 | if (transferred == 0) | |
2415 | return xstrdup (""); | |
2416 | ||
39086a0e | 2417 | bufstr[transferred] = 0; |
7313baad UW |
2418 | |
2419 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2420 | for (i = strlen (bufstr); i < transferred; i++) |
2421 | if (bufstr[i] != 0) | |
7313baad UW |
2422 | { |
2423 | warning (_("target object %d, annex %s, " | |
2424 | "contained unexpected null characters"), | |
2425 | (int) object, annex ? annex : "(none)"); | |
2426 | break; | |
2427 | } | |
159f81f3 | 2428 | |
39086a0e | 2429 | return bufstr; |
159f81f3 DJ |
2430 | } |
2431 | ||
b6591e8b AC |
2432 | /* Memory transfer methods. */ |
2433 | ||
2434 | void | |
1b0ba102 | 2435 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2436 | LONGEST len) |
2437 | { | |
07b82ea5 PA |
2438 | /* This method is used to read from an alternate, non-current |
2439 | target. This read must bypass the overlay support (as symbols | |
2440 | don't match this target), and GDB's internal cache (wrong cache | |
2441 | for this target). */ | |
2442 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2443 | != len) |
578d3588 | 2444 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2445 | } |
2446 | ||
2447 | ULONGEST | |
5d502164 MS |
2448 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2449 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2450 | { |
f6519ebc | 2451 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2452 | |
2453 | gdb_assert (len <= sizeof (buf)); | |
2454 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2455 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2456 | } |
2457 | ||
d914c394 SS |
2458 | int |
2459 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2460 | struct bp_target_info *bp_tgt) | |
2461 | { | |
2462 | if (!may_insert_breakpoints) | |
2463 | { | |
2464 | warning (_("May not insert breakpoints")); | |
2465 | return 1; | |
2466 | } | |
2467 | ||
2468 | return (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt); | |
2469 | } | |
2470 | ||
2471 | int | |
2472 | target_remove_breakpoint (struct gdbarch *gdbarch, | |
2473 | struct bp_target_info *bp_tgt) | |
2474 | { | |
2475 | /* This is kind of a weird case to handle, but the permission might | |
2476 | have been changed after breakpoints were inserted - in which case | |
2477 | we should just take the user literally and assume that any | |
2478 | breakpoints should be left in place. */ | |
2479 | if (!may_insert_breakpoints) | |
2480 | { | |
2481 | warning (_("May not remove breakpoints")); | |
2482 | return 1; | |
2483 | } | |
2484 | ||
2485 | return (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt); | |
2486 | } | |
2487 | ||
c906108c | 2488 | static void |
fba45db2 | 2489 | target_info (char *args, int from_tty) |
c906108c SS |
2490 | { |
2491 | struct target_ops *t; | |
c906108c | 2492 | int has_all_mem = 0; |
c5aa993b | 2493 | |
c906108c | 2494 | if (symfile_objfile != NULL) |
4262abfb JK |
2495 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2496 | objfile_name (symfile_objfile)); | |
c906108c | 2497 | |
258b763a | 2498 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2499 | { |
c35b1492 | 2500 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2501 | continue; |
2502 | ||
c5aa993b | 2503 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2504 | continue; |
2505 | if (has_all_mem) | |
3e43a32a MS |
2506 | printf_unfiltered (_("\tWhile running this, " |
2507 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2508 | printf_unfiltered ("%s:\n", t->to_longname); |
2509 | (t->to_files_info) (t); | |
c35b1492 | 2510 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2511 | } |
2512 | } | |
2513 | ||
fd79ecee DJ |
2514 | /* This function is called before any new inferior is created, e.g. |
2515 | by running a program, attaching, or connecting to a target. | |
2516 | It cleans up any state from previous invocations which might | |
2517 | change between runs. This is a subset of what target_preopen | |
2518 | resets (things which might change between targets). */ | |
2519 | ||
2520 | void | |
2521 | target_pre_inferior (int from_tty) | |
2522 | { | |
c378eb4e | 2523 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2524 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2525 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2526 | to reproduce: |
2527 | ||
2528 | bash$ ./foo& | |
2529 | [1] 4711 | |
2530 | bash$ ./foo& | |
2531 | [1] 4712 | |
2532 | bash$ gdb ./foo | |
2533 | [...] | |
2534 | (gdb) attach 4711 | |
2535 | (gdb) detach | |
2536 | (gdb) attach 4712 | |
2537 | Cannot access memory at address 0xdeadbeef | |
2538 | */ | |
b9db4ced | 2539 | |
50c71eaf PA |
2540 | /* In some OSs, the shared library list is the same/global/shared |
2541 | across inferiors. If code is shared between processes, so are | |
2542 | memory regions and features. */ | |
f5656ead | 2543 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2544 | { |
2545 | no_shared_libraries (NULL, from_tty); | |
2546 | ||
2547 | invalidate_target_mem_regions (); | |
424163ea | 2548 | |
50c71eaf PA |
2549 | target_clear_description (); |
2550 | } | |
8ffcbaaf YQ |
2551 | |
2552 | agent_capability_invalidate (); | |
fd79ecee DJ |
2553 | } |
2554 | ||
b8fa0bfa PA |
2555 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2556 | inferior. */ | |
2557 | ||
2558 | static int | |
2559 | dispose_inferior (struct inferior *inf, void *args) | |
2560 | { | |
2561 | struct thread_info *thread; | |
2562 | ||
2563 | thread = any_thread_of_process (inf->pid); | |
2564 | if (thread) | |
2565 | { | |
2566 | switch_to_thread (thread->ptid); | |
2567 | ||
2568 | /* Core inferiors actually should be detached, not killed. */ | |
2569 | if (target_has_execution) | |
2570 | target_kill (); | |
2571 | else | |
2572 | target_detach (NULL, 0); | |
2573 | } | |
2574 | ||
2575 | return 0; | |
2576 | } | |
2577 | ||
c906108c SS |
2578 | /* This is to be called by the open routine before it does |
2579 | anything. */ | |
2580 | ||
2581 | void | |
fba45db2 | 2582 | target_preopen (int from_tty) |
c906108c | 2583 | { |
c5aa993b | 2584 | dont_repeat (); |
c906108c | 2585 | |
b8fa0bfa | 2586 | if (have_inferiors ()) |
c5aa993b | 2587 | { |
adf40b2e | 2588 | if (!from_tty |
b8fa0bfa PA |
2589 | || !have_live_inferiors () |
2590 | || query (_("A program is being debugged already. Kill it? "))) | |
2591 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2592 | else |
8a3fe4f8 | 2593 | error (_("Program not killed.")); |
c906108c SS |
2594 | } |
2595 | ||
2596 | /* Calling target_kill may remove the target from the stack. But if | |
2597 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2598 | /* Leave the exec target, though. The user may be switching from a |
2599 | live process to a core of the same program. */ | |
460014f5 | 2600 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2601 | |
2602 | target_pre_inferior (from_tty); | |
c906108c SS |
2603 | } |
2604 | ||
2605 | /* Detach a target after doing deferred register stores. */ | |
2606 | ||
2607 | void | |
fba45db2 | 2608 | target_detach (char *args, int from_tty) |
c906108c | 2609 | { |
136d6dae VP |
2610 | struct target_ops* t; |
2611 | ||
f5656ead | 2612 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2613 | /* Don't remove global breakpoints here. They're removed on |
2614 | disconnection from the target. */ | |
2615 | ; | |
2616 | else | |
2617 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2618 | them before detaching. */ | |
dfd4cc63 | 2619 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2620 | |
24291992 PA |
2621 | prepare_for_detach (); |
2622 | ||
136d6dae VP |
2623 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2624 | { | |
2625 | if (t->to_detach != NULL) | |
2626 | { | |
2627 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2628 | if (targetdebug) |
2629 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2630 | args, from_tty); | |
136d6dae VP |
2631 | return; |
2632 | } | |
2633 | } | |
2634 | ||
9b20d036 | 2635 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2636 | } |
2637 | ||
6ad8ae5c DJ |
2638 | void |
2639 | target_disconnect (char *args, int from_tty) | |
2640 | { | |
597320e7 DJ |
2641 | struct target_ops *t; |
2642 | ||
50c71eaf PA |
2643 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2644 | are global across processes, we have to remove them before | |
2645 | disconnecting. */ | |
74960c60 VP |
2646 | remove_breakpoints (); |
2647 | ||
597320e7 DJ |
2648 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2649 | if (t->to_disconnect != NULL) | |
2650 | { | |
2651 | if (targetdebug) | |
2652 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2653 | args, from_tty); | |
2654 | t->to_disconnect (t, args, from_tty); | |
2655 | return; | |
2656 | } | |
2657 | ||
2658 | tcomplain (); | |
6ad8ae5c DJ |
2659 | } |
2660 | ||
117de6a9 | 2661 | ptid_t |
47608cb1 | 2662 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2663 | { |
2664 | struct target_ops *t; | |
2665 | ||
2666 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2667 | { | |
2668 | if (t->to_wait != NULL) | |
2669 | { | |
47608cb1 | 2670 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
2671 | |
2672 | if (targetdebug) | |
2673 | { | |
2674 | char *status_string; | |
09826ec5 | 2675 | char *options_string; |
117de6a9 PA |
2676 | |
2677 | status_string = target_waitstatus_to_string (status); | |
09826ec5 | 2678 | options_string = target_options_to_string (options); |
117de6a9 | 2679 | fprintf_unfiltered (gdb_stdlog, |
09826ec5 PA |
2680 | "target_wait (%d, status, options={%s})" |
2681 | " = %d, %s\n", | |
dfd4cc63 LM |
2682 | ptid_get_pid (ptid), options_string, |
2683 | ptid_get_pid (retval), status_string); | |
117de6a9 | 2684 | xfree (status_string); |
09826ec5 | 2685 | xfree (options_string); |
117de6a9 PA |
2686 | } |
2687 | ||
2688 | return retval; | |
2689 | } | |
2690 | } | |
2691 | ||
2692 | noprocess (); | |
2693 | } | |
2694 | ||
2695 | char * | |
2696 | target_pid_to_str (ptid_t ptid) | |
2697 | { | |
2698 | struct target_ops *t; | |
2699 | ||
2700 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2701 | { | |
2702 | if (t->to_pid_to_str != NULL) | |
2703 | return (*t->to_pid_to_str) (t, ptid); | |
2704 | } | |
2705 | ||
2706 | return normal_pid_to_str (ptid); | |
2707 | } | |
2708 | ||
4694da01 TT |
2709 | char * |
2710 | target_thread_name (struct thread_info *info) | |
2711 | { | |
2712 | struct target_ops *t; | |
2713 | ||
2714 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2715 | { | |
2716 | if (t->to_thread_name != NULL) | |
2717 | return (*t->to_thread_name) (info); | |
2718 | } | |
2719 | ||
2720 | return NULL; | |
2721 | } | |
2722 | ||
e1ac3328 | 2723 | void |
2ea28649 | 2724 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2725 | { |
28439f5e PA |
2726 | struct target_ops *t; |
2727 | ||
4e5d721f | 2728 | target_dcache_invalidate (); |
28439f5e PA |
2729 | |
2730 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2731 | { | |
2732 | if (t->to_resume != NULL) | |
2733 | { | |
2734 | t->to_resume (t, ptid, step, signal); | |
2735 | if (targetdebug) | |
2736 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
dfd4cc63 | 2737 | ptid_get_pid (ptid), |
28439f5e | 2738 | step ? "step" : "continue", |
2ea28649 | 2739 | gdb_signal_to_name (signal)); |
28439f5e | 2740 | |
e66408ed | 2741 | registers_changed_ptid (ptid); |
28439f5e PA |
2742 | set_executing (ptid, 1); |
2743 | set_running (ptid, 1); | |
edb3359d | 2744 | clear_inline_frame_state (ptid); |
28439f5e PA |
2745 | return; |
2746 | } | |
2747 | } | |
2748 | ||
2749 | noprocess (); | |
e1ac3328 | 2750 | } |
2455069d UW |
2751 | |
2752 | void | |
2753 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2754 | { | |
2755 | struct target_ops *t; | |
2756 | ||
2757 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2758 | { | |
2759 | if (t->to_pass_signals != NULL) | |
2760 | { | |
2761 | if (targetdebug) | |
2762 | { | |
2763 | int i; | |
2764 | ||
2765 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2766 | numsigs); | |
2767 | ||
2768 | for (i = 0; i < numsigs; i++) | |
2769 | if (pass_signals[i]) | |
2770 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2771 | gdb_signal_to_name (i)); |
2455069d UW |
2772 | |
2773 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2774 | } | |
2775 | ||
2776 | (*t->to_pass_signals) (numsigs, pass_signals); | |
2777 | return; | |
2778 | } | |
2779 | } | |
2780 | } | |
2781 | ||
9b224c5e PA |
2782 | void |
2783 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2784 | { | |
2785 | struct target_ops *t; | |
2786 | ||
2787 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2788 | { | |
2789 | if (t->to_program_signals != NULL) | |
2790 | { | |
2791 | if (targetdebug) | |
2792 | { | |
2793 | int i; | |
2794 | ||
2795 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2796 | numsigs); | |
2797 | ||
2798 | for (i = 0; i < numsigs; i++) | |
2799 | if (program_signals[i]) | |
2800 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2801 | gdb_signal_to_name (i)); |
9b224c5e PA |
2802 | |
2803 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2804 | } | |
2805 | ||
2806 | (*t->to_program_signals) (numsigs, program_signals); | |
2807 | return; | |
2808 | } | |
2809 | } | |
2810 | } | |
2811 | ||
ee057212 DJ |
2812 | /* Look through the list of possible targets for a target that can |
2813 | follow forks. */ | |
2814 | ||
2815 | int | |
07107ca6 | 2816 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2817 | { |
2818 | struct target_ops *t; | |
2819 | ||
2820 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2821 | { | |
2822 | if (t->to_follow_fork != NULL) | |
2823 | { | |
07107ca6 | 2824 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2825 | |
ee057212 | 2826 | if (targetdebug) |
07107ca6 LM |
2827 | fprintf_unfiltered (gdb_stdlog, |
2828 | "target_follow_fork (%d, %d) = %d\n", | |
2829 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2830 | return retval; |
2831 | } | |
2832 | } | |
2833 | ||
2834 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2835 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2836 | _("could not find a target to follow fork")); |
ee057212 DJ |
2837 | } |
2838 | ||
136d6dae VP |
2839 | void |
2840 | target_mourn_inferior (void) | |
2841 | { | |
2842 | struct target_ops *t; | |
5d502164 | 2843 | |
136d6dae VP |
2844 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2845 | { | |
2846 | if (t->to_mourn_inferior != NULL) | |
2847 | { | |
2848 | t->to_mourn_inferior (t); | |
947b8855 PA |
2849 | if (targetdebug) |
2850 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2851 | |
2852 | /* We no longer need to keep handles on any of the object files. | |
2853 | Make sure to release them to avoid unnecessarily locking any | |
2854 | of them while we're not actually debugging. */ | |
2855 | bfd_cache_close_all (); | |
2856 | ||
136d6dae VP |
2857 | return; |
2858 | } | |
2859 | } | |
2860 | ||
2861 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2862 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2863 | } |
2864 | ||
424163ea DJ |
2865 | /* Look for a target which can describe architectural features, starting |
2866 | from TARGET. If we find one, return its description. */ | |
2867 | ||
2868 | const struct target_desc * | |
2869 | target_read_description (struct target_ops *target) | |
2870 | { | |
2871 | struct target_ops *t; | |
2872 | ||
2873 | for (t = target; t != NULL; t = t->beneath) | |
2874 | if (t->to_read_description != NULL) | |
2875 | { | |
2876 | const struct target_desc *tdesc; | |
2877 | ||
2878 | tdesc = t->to_read_description (t); | |
2879 | if (tdesc) | |
2880 | return tdesc; | |
2881 | } | |
2882 | ||
2883 | return NULL; | |
2884 | } | |
2885 | ||
08388c79 DE |
2886 | /* The default implementation of to_search_memory. |
2887 | This implements a basic search of memory, reading target memory and | |
2888 | performing the search here (as opposed to performing the search in on the | |
2889 | target side with, for example, gdbserver). */ | |
2890 | ||
2891 | int | |
2892 | simple_search_memory (struct target_ops *ops, | |
2893 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2894 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2895 | CORE_ADDR *found_addrp) | |
2896 | { | |
2897 | /* NOTE: also defined in find.c testcase. */ | |
2898 | #define SEARCH_CHUNK_SIZE 16000 | |
2899 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2900 | /* Buffer to hold memory contents for searching. */ | |
2901 | gdb_byte *search_buf; | |
2902 | unsigned search_buf_size; | |
2903 | struct cleanup *old_cleanups; | |
2904 | ||
2905 | search_buf_size = chunk_size + pattern_len - 1; | |
2906 | ||
2907 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2908 | if (search_space_len < search_buf_size) | |
2909 | search_buf_size = search_space_len; | |
2910 | ||
2911 | search_buf = malloc (search_buf_size); | |
2912 | if (search_buf == NULL) | |
5e1471f5 | 2913 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2914 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2915 | ||
2916 | /* Prime the search buffer. */ | |
2917 | ||
2918 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2919 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2920 | { | |
b3dc46ff AB |
2921 | warning (_("Unable to access %s bytes of target " |
2922 | "memory at %s, halting search."), | |
2923 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2924 | do_cleanups (old_cleanups); |
2925 | return -1; | |
2926 | } | |
2927 | ||
2928 | /* Perform the search. | |
2929 | ||
2930 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2931 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2932 | read in another N bytes. */ | |
2933 | ||
2934 | while (search_space_len >= pattern_len) | |
2935 | { | |
2936 | gdb_byte *found_ptr; | |
2937 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2938 | ||
2939 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2940 | pattern, pattern_len); | |
2941 | ||
2942 | if (found_ptr != NULL) | |
2943 | { | |
2944 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2945 | |
08388c79 DE |
2946 | *found_addrp = found_addr; |
2947 | do_cleanups (old_cleanups); | |
2948 | return 1; | |
2949 | } | |
2950 | ||
2951 | /* Not found in this chunk, skip to next chunk. */ | |
2952 | ||
2953 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2954 | if (search_space_len >= chunk_size) | |
2955 | search_space_len -= chunk_size; | |
2956 | else | |
2957 | search_space_len = 0; | |
2958 | ||
2959 | if (search_space_len >= pattern_len) | |
2960 | { | |
2961 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2962 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2963 | int nr_to_read; |
2964 | ||
2965 | /* Copy the trailing part of the previous iteration to the front | |
2966 | of the buffer for the next iteration. */ | |
2967 | gdb_assert (keep_len == pattern_len - 1); | |
2968 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2969 | ||
2970 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2971 | ||
2972 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2973 | search_buf + keep_len, read_addr, | |
2974 | nr_to_read) != nr_to_read) | |
2975 | { | |
b3dc46ff | 2976 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2977 | "memory at %s, halting search."), |
b3dc46ff | 2978 | plongest (nr_to_read), |
08388c79 DE |
2979 | hex_string (read_addr)); |
2980 | do_cleanups (old_cleanups); | |
2981 | return -1; | |
2982 | } | |
2983 | ||
2984 | start_addr += chunk_size; | |
2985 | } | |
2986 | } | |
2987 | ||
2988 | /* Not found. */ | |
2989 | ||
2990 | do_cleanups (old_cleanups); | |
2991 | return 0; | |
2992 | } | |
2993 | ||
2994 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2995 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2996 | ||
2997 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2998 | requiring halting of the search (e.g. memory read error). | |
2999 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
3000 | ||
3001 | int | |
3002 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
3003 | const gdb_byte *pattern, ULONGEST pattern_len, | |
3004 | CORE_ADDR *found_addrp) | |
3005 | { | |
3006 | struct target_ops *t; | |
3007 | int found; | |
3008 | ||
3009 | /* We don't use INHERIT to set current_target.to_search_memory, | |
3010 | so we have to scan the target stack and handle targetdebug | |
3011 | ourselves. */ | |
3012 | ||
3013 | if (targetdebug) | |
3014 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3015 | hex_string (start_addr)); | |
3016 | ||
3017 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3018 | if (t->to_search_memory != NULL) | |
3019 | break; | |
3020 | ||
3021 | if (t != NULL) | |
3022 | { | |
3023 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3024 | pattern, pattern_len, found_addrp); | |
3025 | } | |
3026 | else | |
3027 | { | |
3028 | /* If a special version of to_search_memory isn't available, use the | |
3029 | simple version. */ | |
c35b1492 | 3030 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3031 | start_addr, search_space_len, |
3032 | pattern, pattern_len, found_addrp); | |
3033 | } | |
3034 | ||
3035 | if (targetdebug) | |
3036 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3037 | ||
3038 | return found; | |
3039 | } | |
3040 | ||
8edfe269 DJ |
3041 | /* Look through the currently pushed targets. If none of them will |
3042 | be able to restart the currently running process, issue an error | |
3043 | message. */ | |
3044 | ||
3045 | void | |
3046 | target_require_runnable (void) | |
3047 | { | |
3048 | struct target_ops *t; | |
3049 | ||
3050 | for (t = target_stack; t != NULL; t = t->beneath) | |
3051 | { | |
3052 | /* If this target knows how to create a new program, then | |
3053 | assume we will still be able to after killing the current | |
3054 | one. Either killing and mourning will not pop T, or else | |
3055 | find_default_run_target will find it again. */ | |
3056 | if (t->to_create_inferior != NULL) | |
3057 | return; | |
3058 | ||
3059 | /* Do not worry about thread_stratum targets that can not | |
3060 | create inferiors. Assume they will be pushed again if | |
3061 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3062 | if (t->to_stratum == thread_stratum |
3063 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3064 | continue; |
3065 | ||
3e43a32a MS |
3066 | error (_("The \"%s\" target does not support \"run\". " |
3067 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3068 | t->to_shortname); |
3069 | } | |
3070 | ||
3071 | /* This function is only called if the target is running. In that | |
3072 | case there should have been a process_stratum target and it | |
c378eb4e | 3073 | should either know how to create inferiors, or not... */ |
9b20d036 | 3074 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3075 | } |
3076 | ||
c906108c SS |
3077 | /* Look through the list of possible targets for a target that can |
3078 | execute a run or attach command without any other data. This is | |
3079 | used to locate the default process stratum. | |
3080 | ||
5f667f2d PA |
3081 | If DO_MESG is not NULL, the result is always valid (error() is |
3082 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3083 | |
3084 | static struct target_ops * | |
fba45db2 | 3085 | find_default_run_target (char *do_mesg) |
c906108c SS |
3086 | { |
3087 | struct target_ops **t; | |
3088 | struct target_ops *runable = NULL; | |
3089 | int count; | |
3090 | ||
3091 | count = 0; | |
3092 | ||
3093 | for (t = target_structs; t < target_structs + target_struct_size; | |
3094 | ++t) | |
3095 | { | |
c5aa993b | 3096 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3097 | { |
3098 | runable = *t; | |
3099 | ++count; | |
3100 | } | |
3101 | } | |
3102 | ||
3103 | if (count != 1) | |
5f667f2d PA |
3104 | { |
3105 | if (do_mesg) | |
3106 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3107 | else | |
3108 | return NULL; | |
3109 | } | |
c906108c SS |
3110 | |
3111 | return runable; | |
3112 | } | |
3113 | ||
3114 | void | |
136d6dae | 3115 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3116 | { |
3117 | struct target_ops *t; | |
3118 | ||
c5aa993b | 3119 | t = find_default_run_target ("attach"); |
136d6dae | 3120 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3121 | return; |
3122 | } | |
3123 | ||
c906108c | 3124 | void |
136d6dae VP |
3125 | find_default_create_inferior (struct target_ops *ops, |
3126 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3127 | int from_tty) |
c906108c SS |
3128 | { |
3129 | struct target_ops *t; | |
3130 | ||
c5aa993b | 3131 | t = find_default_run_target ("run"); |
136d6dae | 3132 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3133 | return; |
3134 | } | |
3135 | ||
2c0b251b | 3136 | static int |
b84876c2 PA |
3137 | find_default_can_async_p (void) |
3138 | { | |
3139 | struct target_ops *t; | |
3140 | ||
5f667f2d PA |
3141 | /* This may be called before the target is pushed on the stack; |
3142 | look for the default process stratum. If there's none, gdb isn't | |
3143 | configured with a native debugger, and target remote isn't | |
3144 | connected yet. */ | |
3145 | t = find_default_run_target (NULL); | |
3146 | if (t && t->to_can_async_p) | |
b84876c2 PA |
3147 | return (t->to_can_async_p) (); |
3148 | return 0; | |
3149 | } | |
3150 | ||
2c0b251b | 3151 | static int |
b84876c2 PA |
3152 | find_default_is_async_p (void) |
3153 | { | |
3154 | struct target_ops *t; | |
3155 | ||
5f667f2d PA |
3156 | /* This may be called before the target is pushed on the stack; |
3157 | look for the default process stratum. If there's none, gdb isn't | |
3158 | configured with a native debugger, and target remote isn't | |
3159 | connected yet. */ | |
3160 | t = find_default_run_target (NULL); | |
3161 | if (t && t->to_is_async_p) | |
b84876c2 PA |
3162 | return (t->to_is_async_p) (); |
3163 | return 0; | |
3164 | } | |
3165 | ||
2c0b251b | 3166 | static int |
9908b566 VP |
3167 | find_default_supports_non_stop (void) |
3168 | { | |
3169 | struct target_ops *t; | |
3170 | ||
3171 | t = find_default_run_target (NULL); | |
3172 | if (t && t->to_supports_non_stop) | |
3173 | return (t->to_supports_non_stop) (); | |
3174 | return 0; | |
3175 | } | |
3176 | ||
3177 | int | |
2c0b251b | 3178 | target_supports_non_stop (void) |
9908b566 VP |
3179 | { |
3180 | struct target_ops *t; | |
5d502164 | 3181 | |
9908b566 VP |
3182 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3183 | if (t->to_supports_non_stop) | |
3184 | return t->to_supports_non_stop (); | |
3185 | ||
3186 | return 0; | |
3187 | } | |
3188 | ||
145b16a9 UW |
3189 | /* Implement the "info proc" command. */ |
3190 | ||
451b7c33 | 3191 | int |
145b16a9 UW |
3192 | target_info_proc (char *args, enum info_proc_what what) |
3193 | { | |
3194 | struct target_ops *t; | |
3195 | ||
3196 | /* If we're already connected to something that can get us OS | |
3197 | related data, use it. Otherwise, try using the native | |
3198 | target. */ | |
3199 | if (current_target.to_stratum >= process_stratum) | |
3200 | t = current_target.beneath; | |
3201 | else | |
3202 | t = find_default_run_target (NULL); | |
3203 | ||
3204 | for (; t != NULL; t = t->beneath) | |
3205 | { | |
3206 | if (t->to_info_proc != NULL) | |
3207 | { | |
3208 | t->to_info_proc (t, args, what); | |
3209 | ||
3210 | if (targetdebug) | |
3211 | fprintf_unfiltered (gdb_stdlog, | |
3212 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3213 | ||
451b7c33 | 3214 | return 1; |
145b16a9 UW |
3215 | } |
3216 | } | |
3217 | ||
451b7c33 | 3218 | return 0; |
145b16a9 UW |
3219 | } |
3220 | ||
03583c20 UW |
3221 | static int |
3222 | find_default_supports_disable_randomization (void) | |
3223 | { | |
3224 | struct target_ops *t; | |
3225 | ||
3226 | t = find_default_run_target (NULL); | |
3227 | if (t && t->to_supports_disable_randomization) | |
3228 | return (t->to_supports_disable_randomization) (); | |
3229 | return 0; | |
3230 | } | |
3231 | ||
3232 | int | |
3233 | target_supports_disable_randomization (void) | |
3234 | { | |
3235 | struct target_ops *t; | |
3236 | ||
3237 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3238 | if (t->to_supports_disable_randomization) | |
3239 | return t->to_supports_disable_randomization (); | |
3240 | ||
3241 | return 0; | |
3242 | } | |
9908b566 | 3243 | |
07e059b5 VP |
3244 | char * |
3245 | target_get_osdata (const char *type) | |
3246 | { | |
07e059b5 VP |
3247 | struct target_ops *t; |
3248 | ||
739ef7fb PA |
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) | |
6d097e65 | 3253 | t = current_target.beneath; |
739ef7fb PA |
3254 | else |
3255 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3256 | |
3257 | if (!t) | |
3258 | return NULL; | |
3259 | ||
6d097e65 | 3260 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3261 | } |
3262 | ||
6c95b8df PA |
3263 | /* Determine the current address space of thread PTID. */ |
3264 | ||
3265 | struct address_space * | |
3266 | target_thread_address_space (ptid_t ptid) | |
3267 | { | |
c0694254 | 3268 | struct address_space *aspace; |
6c95b8df | 3269 | struct inferior *inf; |
c0694254 PA |
3270 | struct target_ops *t; |
3271 | ||
3272 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3273 | { | |
3274 | if (t->to_thread_address_space != NULL) | |
3275 | { | |
3276 | aspace = t->to_thread_address_space (t, ptid); | |
3277 | gdb_assert (aspace); | |
6c95b8df | 3278 | |
c0694254 PA |
3279 | if (targetdebug) |
3280 | fprintf_unfiltered (gdb_stdlog, | |
3281 | "target_thread_address_space (%s) = %d\n", | |
3282 | target_pid_to_str (ptid), | |
3283 | address_space_num (aspace)); | |
3284 | return aspace; | |
3285 | } | |
3286 | } | |
6c95b8df PA |
3287 | |
3288 | /* Fall-back to the "main" address space of the inferior. */ | |
3289 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3290 | ||
3291 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3292 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3293 | _("Can't determine the current " |
3294 | "address space of thread %s\n"), | |
6c95b8df PA |
3295 | target_pid_to_str (ptid)); |
3296 | ||
3297 | return inf->aspace; | |
3298 | } | |
3299 | ||
7313baad UW |
3300 | |
3301 | /* Target file operations. */ | |
3302 | ||
3303 | static struct target_ops * | |
3304 | default_fileio_target (void) | |
3305 | { | |
3306 | /* If we're already connected to something that can perform | |
3307 | file I/O, use it. Otherwise, try using the native target. */ | |
3308 | if (current_target.to_stratum >= process_stratum) | |
3309 | return current_target.beneath; | |
3310 | else | |
3311 | return find_default_run_target ("file I/O"); | |
3312 | } | |
3313 | ||
3314 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3315 | target file descriptor, or -1 if an error occurs (and set | |
3316 | *TARGET_ERRNO). */ | |
3317 | int | |
3318 | target_fileio_open (const char *filename, int flags, int mode, | |
3319 | int *target_errno) | |
3320 | { | |
3321 | struct target_ops *t; | |
3322 | ||
3323 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3324 | { | |
3325 | if (t->to_fileio_open != NULL) | |
3326 | { | |
3327 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3328 | ||
3329 | if (targetdebug) | |
3330 | fprintf_unfiltered (gdb_stdlog, | |
3331 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3332 | filename, flags, mode, | |
3333 | fd, fd != -1 ? 0 : *target_errno); | |
3334 | return fd; | |
3335 | } | |
3336 | } | |
3337 | ||
3338 | *target_errno = FILEIO_ENOSYS; | |
3339 | return -1; | |
3340 | } | |
3341 | ||
3342 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3343 | Return the number of bytes written, or -1 if an error occurs | |
3344 | (and set *TARGET_ERRNO). */ | |
3345 | int | |
3346 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3347 | ULONGEST offset, int *target_errno) | |
3348 | { | |
3349 | struct target_ops *t; | |
3350 | ||
3351 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3352 | { | |
3353 | if (t->to_fileio_pwrite != NULL) | |
3354 | { | |
3355 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3356 | target_errno); | |
3357 | ||
3358 | if (targetdebug) | |
3359 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3360 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3361 | "= %d (%d)\n", |
a71b5a38 | 3362 | fd, len, pulongest (offset), |
7313baad UW |
3363 | ret, ret != -1 ? 0 : *target_errno); |
3364 | return ret; | |
3365 | } | |
3366 | } | |
3367 | ||
3368 | *target_errno = FILEIO_ENOSYS; | |
3369 | return -1; | |
3370 | } | |
3371 | ||
3372 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3373 | Return the number of bytes read, or -1 if an error occurs | |
3374 | (and set *TARGET_ERRNO). */ | |
3375 | int | |
3376 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3377 | ULONGEST offset, int *target_errno) | |
3378 | { | |
3379 | struct target_ops *t; | |
3380 | ||
3381 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3382 | { | |
3383 | if (t->to_fileio_pread != NULL) | |
3384 | { | |
3385 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3386 | target_errno); | |
3387 | ||
3388 | if (targetdebug) | |
3389 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3390 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3391 | "= %d (%d)\n", |
a71b5a38 | 3392 | fd, len, pulongest (offset), |
7313baad UW |
3393 | ret, ret != -1 ? 0 : *target_errno); |
3394 | return ret; | |
3395 | } | |
3396 | } | |
3397 | ||
3398 | *target_errno = FILEIO_ENOSYS; | |
3399 | return -1; | |
3400 | } | |
3401 | ||
3402 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3403 | (and set *TARGET_ERRNO). */ | |
3404 | int | |
3405 | target_fileio_close (int fd, int *target_errno) | |
3406 | { | |
3407 | struct target_ops *t; | |
3408 | ||
3409 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3410 | { | |
3411 | if (t->to_fileio_close != NULL) | |
3412 | { | |
3413 | int ret = t->to_fileio_close (fd, target_errno); | |
3414 | ||
3415 | if (targetdebug) | |
3416 | fprintf_unfiltered (gdb_stdlog, | |
3417 | "target_fileio_close (%d) = %d (%d)\n", | |
3418 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3419 | return ret; | |
3420 | } | |
3421 | } | |
3422 | ||
3423 | *target_errno = FILEIO_ENOSYS; | |
3424 | return -1; | |
3425 | } | |
3426 | ||
3427 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3428 | occurs (and set *TARGET_ERRNO). */ | |
3429 | int | |
3430 | target_fileio_unlink (const char *filename, 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_unlink != NULL) | |
3437 | { | |
3438 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3439 | ||
3440 | if (targetdebug) | |
3441 | fprintf_unfiltered (gdb_stdlog, | |
3442 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3443 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3444 | return ret; | |
3445 | } | |
3446 | } | |
3447 | ||
3448 | *target_errno = FILEIO_ENOSYS; | |
3449 | return -1; | |
3450 | } | |
3451 | ||
b9e7b9c3 UW |
3452 | /* Read value of symbolic link FILENAME on the target. Return a |
3453 | null-terminated string allocated via xmalloc, or NULL if an error | |
3454 | occurs (and set *TARGET_ERRNO). */ | |
3455 | char * | |
3456 | target_fileio_readlink (const char *filename, int *target_errno) | |
3457 | { | |
3458 | struct target_ops *t; | |
3459 | ||
3460 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3461 | { | |
3462 | if (t->to_fileio_readlink != NULL) | |
3463 | { | |
3464 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3465 | ||
3466 | if (targetdebug) | |
3467 | fprintf_unfiltered (gdb_stdlog, | |
3468 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3469 | filename, ret? ret : "(nil)", | |
3470 | ret? 0 : *target_errno); | |
3471 | return ret; | |
3472 | } | |
3473 | } | |
3474 | ||
3475 | *target_errno = FILEIO_ENOSYS; | |
3476 | return NULL; | |
3477 | } | |
3478 | ||
7313baad UW |
3479 | static void |
3480 | target_fileio_close_cleanup (void *opaque) | |
3481 | { | |
3482 | int fd = *(int *) opaque; | |
3483 | int target_errno; | |
3484 | ||
3485 | target_fileio_close (fd, &target_errno); | |
3486 | } | |
3487 | ||
3488 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3489 | return the size of the transferred data. PADDING additional bytes are | |
3490 | available in *BUF_P. This is a helper function for | |
3491 | target_fileio_read_alloc; see the declaration of that function for more | |
3492 | information. */ | |
3493 | ||
3494 | static LONGEST | |
3495 | target_fileio_read_alloc_1 (const char *filename, | |
3496 | gdb_byte **buf_p, int padding) | |
3497 | { | |
3498 | struct cleanup *close_cleanup; | |
3499 | size_t buf_alloc, buf_pos; | |
3500 | gdb_byte *buf; | |
3501 | LONGEST n; | |
3502 | int fd; | |
3503 | int target_errno; | |
3504 | ||
3505 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3506 | if (fd == -1) | |
3507 | return -1; | |
3508 | ||
3509 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3510 | ||
3511 | /* Start by reading up to 4K at a time. The target will throttle | |
3512 | this number down if necessary. */ | |
3513 | buf_alloc = 4096; | |
3514 | buf = xmalloc (buf_alloc); | |
3515 | buf_pos = 0; | |
3516 | while (1) | |
3517 | { | |
3518 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3519 | buf_alloc - buf_pos - padding, buf_pos, | |
3520 | &target_errno); | |
3521 | if (n < 0) | |
3522 | { | |
3523 | /* An error occurred. */ | |
3524 | do_cleanups (close_cleanup); | |
3525 | xfree (buf); | |
3526 | return -1; | |
3527 | } | |
3528 | else if (n == 0) | |
3529 | { | |
3530 | /* Read all there was. */ | |
3531 | do_cleanups (close_cleanup); | |
3532 | if (buf_pos == 0) | |
3533 | xfree (buf); | |
3534 | else | |
3535 | *buf_p = buf; | |
3536 | return buf_pos; | |
3537 | } | |
3538 | ||
3539 | buf_pos += n; | |
3540 | ||
3541 | /* If the buffer is filling up, expand it. */ | |
3542 | if (buf_alloc < buf_pos * 2) | |
3543 | { | |
3544 | buf_alloc *= 2; | |
3545 | buf = xrealloc (buf, buf_alloc); | |
3546 | } | |
3547 | ||
3548 | QUIT; | |
3549 | } | |
3550 | } | |
3551 | ||
3552 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3553 | the size of the transferred data. See the declaration in "target.h" | |
3554 | function for more information about the return value. */ | |
3555 | ||
3556 | LONGEST | |
3557 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3558 | { | |
3559 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3560 | } | |
3561 | ||
3562 | /* Read target file FILENAME. The result is NUL-terminated and | |
3563 | returned as a string, allocated using xmalloc. If an error occurs | |
3564 | or the transfer is unsupported, NULL is returned. Empty objects | |
3565 | are returned as allocated but empty strings. A warning is issued | |
3566 | if the result contains any embedded NUL bytes. */ | |
3567 | ||
3568 | char * | |
3569 | target_fileio_read_stralloc (const char *filename) | |
3570 | { | |
39086a0e PA |
3571 | gdb_byte *buffer; |
3572 | char *bufstr; | |
7313baad UW |
3573 | LONGEST i, transferred; |
3574 | ||
39086a0e PA |
3575 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3576 | bufstr = (char *) buffer; | |
7313baad UW |
3577 | |
3578 | if (transferred < 0) | |
3579 | return NULL; | |
3580 | ||
3581 | if (transferred == 0) | |
3582 | return xstrdup (""); | |
3583 | ||
39086a0e | 3584 | bufstr[transferred] = 0; |
7313baad UW |
3585 | |
3586 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3587 | for (i = strlen (bufstr); i < transferred; i++) |
3588 | if (bufstr[i] != 0) | |
7313baad UW |
3589 | { |
3590 | warning (_("target file %s " | |
3591 | "contained unexpected null characters"), | |
3592 | filename); | |
3593 | break; | |
3594 | } | |
3595 | ||
39086a0e | 3596 | return bufstr; |
7313baad UW |
3597 | } |
3598 | ||
3599 | ||
e0d24f8d WZ |
3600 | static int |
3601 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3602 | { | |
f5656ead | 3603 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3604 | } |
3605 | ||
5009afc5 AS |
3606 | static int |
3607 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3608 | CORE_ADDR addr, | |
3609 | CORE_ADDR start, int length) | |
3610 | { | |
3611 | return addr >= start && addr < start + length; | |
3612 | } | |
3613 | ||
c2250ad1 UW |
3614 | static struct gdbarch * |
3615 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3616 | { | |
f5656ead | 3617 | return target_gdbarch (); |
c2250ad1 UW |
3618 | } |
3619 | ||
c906108c | 3620 | static int |
fba45db2 | 3621 | return_zero (void) |
c906108c SS |
3622 | { |
3623 | return 0; | |
3624 | } | |
3625 | ||
3626 | static int | |
fba45db2 | 3627 | return_one (void) |
c906108c SS |
3628 | { |
3629 | return 1; | |
3630 | } | |
3631 | ||
ccaa32c7 GS |
3632 | static int |
3633 | return_minus_one (void) | |
3634 | { | |
3635 | return -1; | |
3636 | } | |
3637 | ||
ed9a39eb JM |
3638 | /* |
3639 | * Find the next target down the stack from the specified target. | |
3640 | */ | |
3641 | ||
3642 | struct target_ops * | |
fba45db2 | 3643 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3644 | { |
258b763a | 3645 | return t->beneath; |
ed9a39eb JM |
3646 | } |
3647 | ||
c906108c SS |
3648 | \f |
3649 | /* The inferior process has died. Long live the inferior! */ | |
3650 | ||
3651 | void | |
fba45db2 | 3652 | generic_mourn_inferior (void) |
c906108c | 3653 | { |
7f9f62ba | 3654 | ptid_t ptid; |
c906108c | 3655 | |
7f9f62ba | 3656 | ptid = inferior_ptid; |
39f77062 | 3657 | inferior_ptid = null_ptid; |
7f9f62ba | 3658 | |
f59f708a PA |
3659 | /* Mark breakpoints uninserted in case something tries to delete a |
3660 | breakpoint while we delete the inferior's threads (which would | |
3661 | fail, since the inferior is long gone). */ | |
3662 | mark_breakpoints_out (); | |
3663 | ||
7f9f62ba PA |
3664 | if (!ptid_equal (ptid, null_ptid)) |
3665 | { | |
3666 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3667 | exit_inferior (pid); |
7f9f62ba PA |
3668 | } |
3669 | ||
f59f708a PA |
3670 | /* Note this wipes step-resume breakpoints, so needs to be done |
3671 | after exit_inferior, which ends up referencing the step-resume | |
3672 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3673 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3674 | |
c906108c SS |
3675 | registers_changed (); |
3676 | ||
c906108c SS |
3677 | reopen_exec_file (); |
3678 | reinit_frame_cache (); | |
3679 | ||
9a4105ab AC |
3680 | if (deprecated_detach_hook) |
3681 | deprecated_detach_hook (); | |
c906108c SS |
3682 | } |
3683 | \f | |
fd0a2a6f MK |
3684 | /* Convert a normal process ID to a string. Returns the string in a |
3685 | static buffer. */ | |
c906108c SS |
3686 | |
3687 | char * | |
39f77062 | 3688 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3689 | { |
fd0a2a6f | 3690 | static char buf[32]; |
c906108c | 3691 | |
5fff8fc0 | 3692 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3693 | return buf; |
3694 | } | |
3695 | ||
2c0b251b | 3696 | static char * |
117de6a9 PA |
3697 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3698 | { | |
3699 | return normal_pid_to_str (ptid); | |
3700 | } | |
3701 | ||
9b4eba8e HZ |
3702 | /* Error-catcher for target_find_memory_regions. */ |
3703 | static int | |
b8edc417 | 3704 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3705 | { |
9b4eba8e | 3706 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3707 | return 0; |
3708 | } | |
3709 | ||
9b4eba8e HZ |
3710 | /* Error-catcher for target_make_corefile_notes. */ |
3711 | static char * | |
3712 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3713 | { |
9b4eba8e | 3714 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3715 | return NULL; |
3716 | } | |
3717 | ||
6b04bdb7 MS |
3718 | /* Error-catcher for target_get_bookmark. */ |
3719 | static gdb_byte * | |
3720 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3721 | { | |
3722 | tcomplain (); | |
3723 | return NULL; | |
3724 | } | |
3725 | ||
3726 | /* Error-catcher for target_goto_bookmark. */ | |
3727 | static void | |
3728 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3729 | { | |
3730 | tcomplain (); | |
3731 | } | |
3732 | ||
c906108c SS |
3733 | /* Set up the handful of non-empty slots needed by the dummy target |
3734 | vector. */ | |
3735 | ||
3736 | static void | |
fba45db2 | 3737 | init_dummy_target (void) |
c906108c SS |
3738 | { |
3739 | dummy_target.to_shortname = "None"; | |
3740 | dummy_target.to_longname = "None"; | |
3741 | dummy_target.to_doc = ""; | |
3742 | dummy_target.to_attach = find_default_attach; | |
136d6dae VP |
3743 | dummy_target.to_detach = |
3744 | (void (*)(struct target_ops *, char *, int))target_ignore; | |
c906108c | 3745 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
3746 | dummy_target.to_can_async_p = find_default_can_async_p; |
3747 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 3748 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3749 | dummy_target.to_supports_disable_randomization |
3750 | = find_default_supports_disable_randomization; | |
117de6a9 | 3751 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3752 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3753 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3754 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3755 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3756 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
0b603eba | 3757 | dummy_target.to_xfer_partial = default_xfer_partial; |
c35b1492 PA |
3758 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3759 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3760 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3761 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3762 | dummy_target.to_has_execution |
3763 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
7155de5a HZ |
3764 | dummy_target.to_stopped_by_watchpoint = return_zero; |
3765 | dummy_target.to_stopped_data_address = | |
3766 | (int (*) (struct target_ops *, CORE_ADDR *)) return_zero; | |
c906108c SS |
3767 | dummy_target.to_magic = OPS_MAGIC; |
3768 | } | |
c906108c | 3769 | \f |
c906108c | 3770 | static void |
fba45db2 | 3771 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3772 | { |
3773 | debug_target.to_open (args, from_tty); | |
3774 | ||
96baa820 | 3775 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3776 | } |
3777 | ||
f1c07ab0 | 3778 | void |
460014f5 | 3779 | target_close (struct target_ops *targ) |
f1c07ab0 | 3780 | { |
7fdc1521 TT |
3781 | gdb_assert (!target_is_pushed (targ)); |
3782 | ||
f1c07ab0 | 3783 | if (targ->to_xclose != NULL) |
460014f5 | 3784 | targ->to_xclose (targ); |
f1c07ab0 | 3785 | else if (targ->to_close != NULL) |
460014f5 | 3786 | targ->to_close (); |
947b8855 PA |
3787 | |
3788 | if (targetdebug) | |
460014f5 | 3789 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3790 | } |
3791 | ||
136d6dae VP |
3792 | void |
3793 | target_attach (char *args, int from_tty) | |
3794 | { | |
3795 | struct target_ops *t; | |
5d502164 | 3796 | |
136d6dae VP |
3797 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3798 | { | |
3799 | if (t->to_attach != NULL) | |
3800 | { | |
3801 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3802 | if (targetdebug) |
3803 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3804 | args, from_tty); | |
136d6dae VP |
3805 | return; |
3806 | } | |
3807 | } | |
3808 | ||
3809 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3810 | _("could not find a target to attach")); |
136d6dae VP |
3811 | } |
3812 | ||
28439f5e PA |
3813 | int |
3814 | target_thread_alive (ptid_t ptid) | |
c906108c | 3815 | { |
28439f5e | 3816 | struct target_ops *t; |
5d502164 | 3817 | |
28439f5e PA |
3818 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3819 | { | |
3820 | if (t->to_thread_alive != NULL) | |
3821 | { | |
3822 | int retval; | |
c906108c | 3823 | |
28439f5e PA |
3824 | retval = t->to_thread_alive (t, ptid); |
3825 | if (targetdebug) | |
3826 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3827 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3828 | |
3829 | return retval; | |
3830 | } | |
3831 | } | |
3832 | ||
3833 | return 0; | |
3834 | } | |
3835 | ||
3836 | void | |
3837 | target_find_new_threads (void) | |
3838 | { | |
3839 | struct target_ops *t; | |
5d502164 | 3840 | |
28439f5e PA |
3841 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3842 | { | |
3843 | if (t->to_find_new_threads != NULL) | |
3844 | { | |
3845 | t->to_find_new_threads (t); | |
3846 | if (targetdebug) | |
3847 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3848 | ||
3849 | return; | |
3850 | } | |
3851 | } | |
c906108c SS |
3852 | } |
3853 | ||
d914c394 SS |
3854 | void |
3855 | target_stop (ptid_t ptid) | |
3856 | { | |
3857 | if (!may_stop) | |
3858 | { | |
3859 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3860 | return; | |
3861 | } | |
3862 | ||
3863 | (*current_target.to_stop) (ptid); | |
3864 | } | |
3865 | ||
c906108c | 3866 | static void |
28439f5e | 3867 | debug_to_post_attach (int pid) |
c906108c | 3868 | { |
28439f5e | 3869 | debug_target.to_post_attach (pid); |
c906108c | 3870 | |
28439f5e | 3871 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3872 | } |
3873 | ||
09826ec5 PA |
3874 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3875 | result. The LIST incoming argument is released. */ | |
3876 | ||
3877 | static char * | |
3878 | str_comma_list_concat_elem (char *list, const char *elem) | |
3879 | { | |
3880 | if (list == NULL) | |
3881 | return xstrdup (elem); | |
3882 | else | |
3883 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3884 | } | |
3885 | ||
3886 | /* Helper for target_options_to_string. If OPT is present in | |
3887 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3888 | Returns the new resulting string. OPT is removed from | |
3889 | TARGET_OPTIONS. */ | |
3890 | ||
3891 | static char * | |
3892 | do_option (int *target_options, char *ret, | |
3893 | int opt, char *opt_str) | |
3894 | { | |
3895 | if ((*target_options & opt) != 0) | |
3896 | { | |
3897 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3898 | *target_options &= ~opt; | |
3899 | } | |
3900 | ||
3901 | return ret; | |
3902 | } | |
3903 | ||
3904 | char * | |
3905 | target_options_to_string (int target_options) | |
3906 | { | |
3907 | char *ret = NULL; | |
3908 | ||
3909 | #define DO_TARG_OPTION(OPT) \ | |
3910 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3911 | ||
3912 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3913 | ||
3914 | if (target_options != 0) | |
3915 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3916 | ||
3917 | if (ret == NULL) | |
3918 | ret = xstrdup (""); | |
3919 | return ret; | |
3920 | } | |
3921 | ||
bf0c5130 | 3922 | static void |
56be3814 UW |
3923 | debug_print_register (const char * func, |
3924 | struct regcache *regcache, int regno) | |
bf0c5130 | 3925 | { |
f8d29908 | 3926 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3927 | |
bf0c5130 | 3928 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3929 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3930 | && gdbarch_register_name (gdbarch, regno) != NULL |
3931 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3932 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3933 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3934 | else |
3935 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3936 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3937 | { |
e17a4113 | 3938 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3939 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3940 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3941 | |
0ff58721 | 3942 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3943 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3944 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3945 | { |
3946 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3947 | } | |
81c4a259 | 3948 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3949 | { |
e17a4113 | 3950 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3951 | |
0b1553bc UW |
3952 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3953 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3954 | } |
3955 | } | |
3956 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3957 | } | |
3958 | ||
28439f5e PA |
3959 | void |
3960 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3961 | { |
28439f5e | 3962 | struct target_ops *t; |
5d502164 | 3963 | |
28439f5e PA |
3964 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3965 | { | |
3966 | if (t->to_fetch_registers != NULL) | |
3967 | { | |
3968 | t->to_fetch_registers (t, regcache, regno); | |
3969 | if (targetdebug) | |
3970 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3971 | return; | |
3972 | } | |
3973 | } | |
c906108c SS |
3974 | } |
3975 | ||
28439f5e PA |
3976 | void |
3977 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3978 | { |
28439f5e | 3979 | struct target_ops *t; |
5d502164 | 3980 | |
d914c394 SS |
3981 | if (!may_write_registers) |
3982 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3983 | ||
28439f5e PA |
3984 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3985 | { | |
3986 | if (t->to_store_registers != NULL) | |
3987 | { | |
3988 | t->to_store_registers (t, regcache, regno); | |
3989 | if (targetdebug) | |
3990 | { | |
3991 | debug_print_register ("target_store_registers", regcache, regno); | |
3992 | } | |
3993 | return; | |
3994 | } | |
3995 | } | |
3996 | ||
3997 | noprocess (); | |
c906108c SS |
3998 | } |
3999 | ||
dc146f7c VP |
4000 | int |
4001 | target_core_of_thread (ptid_t ptid) | |
4002 | { | |
4003 | struct target_ops *t; | |
4004 | ||
4005 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4006 | { | |
4007 | if (t->to_core_of_thread != NULL) | |
4008 | { | |
4009 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 4010 | |
dc146f7c | 4011 | if (targetdebug) |
3e43a32a MS |
4012 | fprintf_unfiltered (gdb_stdlog, |
4013 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 4014 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
4015 | return retval; |
4016 | } | |
4017 | } | |
4018 | ||
4019 | return -1; | |
4020 | } | |
4021 | ||
4a5e7a5b PA |
4022 | int |
4023 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4024 | { | |
4025 | struct target_ops *t; | |
4026 | ||
4027 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4028 | { | |
4029 | if (t->to_verify_memory != NULL) | |
4030 | { | |
4031 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4032 | |
4a5e7a5b | 4033 | if (targetdebug) |
3e43a32a MS |
4034 | fprintf_unfiltered (gdb_stdlog, |
4035 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4036 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4037 | pulongest (size), |
4038 | retval); | |
4039 | return retval; | |
4040 | } | |
4041 | } | |
4042 | ||
4043 | tcomplain (); | |
4044 | } | |
4045 | ||
9c06b0b4 TJB |
4046 | /* The documentation for this function is in its prototype declaration in |
4047 | target.h. */ | |
4048 | ||
4049 | int | |
4050 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4051 | { | |
4052 | struct target_ops *t; | |
4053 | ||
4054 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4055 | if (t->to_insert_mask_watchpoint != NULL) | |
4056 | { | |
4057 | int ret; | |
4058 | ||
4059 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4060 | ||
4061 | if (targetdebug) | |
4062 | fprintf_unfiltered (gdb_stdlog, "\ | |
4063 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4064 | core_addr_to_string (addr), | |
4065 | core_addr_to_string (mask), rw, ret); | |
4066 | ||
4067 | return ret; | |
4068 | } | |
4069 | ||
4070 | return 1; | |
4071 | } | |
4072 | ||
4073 | /* The documentation for this function is in its prototype declaration in | |
4074 | target.h. */ | |
4075 | ||
4076 | int | |
4077 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4078 | { | |
4079 | struct target_ops *t; | |
4080 | ||
4081 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4082 | if (t->to_remove_mask_watchpoint != NULL) | |
4083 | { | |
4084 | int ret; | |
4085 | ||
4086 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4087 | ||
4088 | if (targetdebug) | |
4089 | fprintf_unfiltered (gdb_stdlog, "\ | |
4090 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4091 | core_addr_to_string (addr), | |
4092 | core_addr_to_string (mask), rw, ret); | |
4093 | ||
4094 | return ret; | |
4095 | } | |
4096 | ||
4097 | return 1; | |
4098 | } | |
4099 | ||
4100 | /* The documentation for this function is in its prototype declaration | |
4101 | in target.h. */ | |
4102 | ||
4103 | int | |
4104 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4105 | { | |
4106 | struct target_ops *t; | |
4107 | ||
4108 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4109 | if (t->to_masked_watch_num_registers != NULL) | |
4110 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4111 | ||
4112 | return -1; | |
4113 | } | |
4114 | ||
f1310107 TJB |
4115 | /* The documentation for this function is in its prototype declaration |
4116 | in target.h. */ | |
4117 | ||
4118 | int | |
4119 | target_ranged_break_num_registers (void) | |
4120 | { | |
4121 | struct target_ops *t; | |
4122 | ||
4123 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4124 | if (t->to_ranged_break_num_registers != NULL) | |
4125 | return t->to_ranged_break_num_registers (t); | |
4126 | ||
4127 | return -1; | |
4128 | } | |
4129 | ||
02d27625 MM |
4130 | /* See target.h. */ |
4131 | ||
4132 | int | |
4133 | target_supports_btrace (void) | |
4134 | { | |
4135 | struct target_ops *t; | |
4136 | ||
4137 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4138 | if (t->to_supports_btrace != NULL) | |
4139 | return t->to_supports_btrace (); | |
4140 | ||
4141 | return 0; | |
4142 | } | |
4143 | ||
4144 | /* See target.h. */ | |
4145 | ||
4146 | struct btrace_target_info * | |
4147 | target_enable_btrace (ptid_t ptid) | |
4148 | { | |
4149 | struct target_ops *t; | |
4150 | ||
4151 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4152 | if (t->to_enable_btrace != NULL) | |
4153 | return t->to_enable_btrace (ptid); | |
4154 | ||
4155 | tcomplain (); | |
4156 | return NULL; | |
4157 | } | |
4158 | ||
4159 | /* See target.h. */ | |
4160 | ||
4161 | void | |
4162 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4163 | { | |
4164 | struct target_ops *t; | |
4165 | ||
4166 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4167 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 SDJ |
4168 | { |
4169 | t->to_disable_btrace (btinfo); | |
4170 | return; | |
4171 | } | |
02d27625 MM |
4172 | |
4173 | tcomplain (); | |
4174 | } | |
4175 | ||
4176 | /* See target.h. */ | |
4177 | ||
4178 | void | |
4179 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4180 | { | |
4181 | struct target_ops *t; | |
4182 | ||
4183 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4184 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 SDJ |
4185 | { |
4186 | t->to_teardown_btrace (btinfo); | |
4187 | return; | |
4188 | } | |
02d27625 MM |
4189 | |
4190 | tcomplain (); | |
4191 | } | |
4192 | ||
4193 | /* See target.h. */ | |
4194 | ||
4195 | VEC (btrace_block_s) * | |
4196 | target_read_btrace (struct btrace_target_info *btinfo, | |
4197 | enum btrace_read_type type) | |
4198 | { | |
4199 | struct target_ops *t; | |
4200 | ||
4201 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4202 | if (t->to_read_btrace != NULL) | |
4203 | return t->to_read_btrace (btinfo, type); | |
4204 | ||
4205 | tcomplain (); | |
4206 | return NULL; | |
4207 | } | |
4208 | ||
d02ed0bb MM |
4209 | /* See target.h. */ |
4210 | ||
7c1687a9 MM |
4211 | void |
4212 | target_stop_recording (void) | |
4213 | { | |
4214 | struct target_ops *t; | |
4215 | ||
4216 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4217 | if (t->to_stop_recording != NULL) | |
4218 | { | |
4219 | t->to_stop_recording (); | |
4220 | return; | |
4221 | } | |
4222 | ||
4223 | /* This is optional. */ | |
4224 | } | |
4225 | ||
4226 | /* See target.h. */ | |
4227 | ||
d02ed0bb MM |
4228 | void |
4229 | target_info_record (void) | |
4230 | { | |
4231 | struct target_ops *t; | |
4232 | ||
4233 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4234 | if (t->to_info_record != NULL) | |
4235 | { | |
4236 | t->to_info_record (); | |
4237 | return; | |
4238 | } | |
4239 | ||
4240 | tcomplain (); | |
4241 | } | |
4242 | ||
4243 | /* See target.h. */ | |
4244 | ||
4245 | void | |
85e1311a | 4246 | target_save_record (const char *filename) |
d02ed0bb MM |
4247 | { |
4248 | struct target_ops *t; | |
4249 | ||
4250 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4251 | if (t->to_save_record != NULL) | |
4252 | { | |
4253 | t->to_save_record (filename); | |
4254 | return; | |
4255 | } | |
4256 | ||
4257 | tcomplain (); | |
4258 | } | |
4259 | ||
4260 | /* See target.h. */ | |
4261 | ||
4262 | int | |
4263 | target_supports_delete_record (void) | |
4264 | { | |
4265 | struct target_ops *t; | |
4266 | ||
4267 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4268 | if (t->to_delete_record != NULL) | |
4269 | return 1; | |
4270 | ||
4271 | return 0; | |
4272 | } | |
4273 | ||
4274 | /* See target.h. */ | |
4275 | ||
4276 | void | |
4277 | target_delete_record (void) | |
4278 | { | |
4279 | struct target_ops *t; | |
4280 | ||
4281 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4282 | if (t->to_delete_record != NULL) | |
4283 | { | |
4284 | t->to_delete_record (); | |
4285 | return; | |
4286 | } | |
4287 | ||
4288 | tcomplain (); | |
4289 | } | |
4290 | ||
4291 | /* See target.h. */ | |
4292 | ||
4293 | int | |
4294 | target_record_is_replaying (void) | |
4295 | { | |
4296 | struct target_ops *t; | |
4297 | ||
4298 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4299 | if (t->to_record_is_replaying != NULL) | |
4300 | return t->to_record_is_replaying (); | |
4301 | ||
4302 | return 0; | |
4303 | } | |
4304 | ||
4305 | /* See target.h. */ | |
4306 | ||
4307 | void | |
4308 | target_goto_record_begin (void) | |
4309 | { | |
4310 | struct target_ops *t; | |
4311 | ||
4312 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4313 | if (t->to_goto_record_begin != NULL) | |
4314 | { | |
4315 | t->to_goto_record_begin (); | |
4316 | return; | |
4317 | } | |
4318 | ||
4319 | tcomplain (); | |
4320 | } | |
4321 | ||
4322 | /* See target.h. */ | |
4323 | ||
4324 | void | |
4325 | target_goto_record_end (void) | |
4326 | { | |
4327 | struct target_ops *t; | |
4328 | ||
4329 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4330 | if (t->to_goto_record_end != NULL) | |
4331 | { | |
4332 | t->to_goto_record_end (); | |
4333 | return; | |
4334 | } | |
4335 | ||
4336 | tcomplain (); | |
4337 | } | |
4338 | ||
4339 | /* See target.h. */ | |
4340 | ||
4341 | void | |
4342 | target_goto_record (ULONGEST insn) | |
4343 | { | |
4344 | struct target_ops *t; | |
4345 | ||
4346 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4347 | if (t->to_goto_record != NULL) | |
4348 | { | |
4349 | t->to_goto_record (insn); | |
4350 | return; | |
4351 | } | |
4352 | ||
4353 | tcomplain (); | |
4354 | } | |
4355 | ||
67c86d06 MM |
4356 | /* See target.h. */ |
4357 | ||
4358 | void | |
4359 | target_insn_history (int size, int flags) | |
4360 | { | |
4361 | struct target_ops *t; | |
4362 | ||
4363 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4364 | if (t->to_insn_history != NULL) | |
4365 | { | |
4366 | t->to_insn_history (size, flags); | |
4367 | return; | |
4368 | } | |
4369 | ||
4370 | tcomplain (); | |
4371 | } | |
4372 | ||
4373 | /* See target.h. */ | |
4374 | ||
4375 | void | |
4376 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4377 | { | |
4378 | struct target_ops *t; | |
4379 | ||
4380 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4381 | if (t->to_insn_history_from != NULL) | |
4382 | { | |
4383 | t->to_insn_history_from (from, size, flags); | |
4384 | return; | |
4385 | } | |
4386 | ||
4387 | tcomplain (); | |
4388 | } | |
4389 | ||
4390 | /* See target.h. */ | |
4391 | ||
4392 | void | |
4393 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4394 | { | |
4395 | struct target_ops *t; | |
4396 | ||
4397 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4398 | if (t->to_insn_history_range != NULL) | |
4399 | { | |
4400 | t->to_insn_history_range (begin, end, flags); | |
4401 | return; | |
4402 | } | |
4403 | ||
4404 | tcomplain (); | |
4405 | } | |
4406 | ||
15984c13 MM |
4407 | /* See target.h. */ |
4408 | ||
4409 | void | |
4410 | target_call_history (int size, int flags) | |
4411 | { | |
4412 | struct target_ops *t; | |
4413 | ||
4414 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4415 | if (t->to_call_history != NULL) | |
4416 | { | |
4417 | t->to_call_history (size, flags); | |
4418 | return; | |
4419 | } | |
4420 | ||
4421 | tcomplain (); | |
4422 | } | |
4423 | ||
4424 | /* See target.h. */ | |
4425 | ||
4426 | void | |
4427 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4428 | { | |
4429 | struct target_ops *t; | |
4430 | ||
4431 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4432 | if (t->to_call_history_from != NULL) | |
4433 | { | |
4434 | t->to_call_history_from (begin, size, flags); | |
4435 | return; | |
4436 | } | |
4437 | ||
4438 | tcomplain (); | |
4439 | } | |
4440 | ||
4441 | /* See target.h. */ | |
4442 | ||
4443 | void | |
4444 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4445 | { | |
4446 | struct target_ops *t; | |
4447 | ||
4448 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4449 | if (t->to_call_history_range != NULL) | |
4450 | { | |
4451 | t->to_call_history_range (begin, end, flags); | |
4452 | return; | |
4453 | } | |
4454 | ||
4455 | tcomplain (); | |
4456 | } | |
4457 | ||
c906108c | 4458 | static void |
316f2060 | 4459 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 4460 | { |
316f2060 | 4461 | debug_target.to_prepare_to_store (regcache); |
c906108c | 4462 | |
96baa820 | 4463 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4464 | } |
4465 | ||
4466 | static int | |
961cb7b5 | 4467 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4468 | int write, struct mem_attrib *attrib, |
4469 | struct target_ops *target) | |
c906108c SS |
4470 | { |
4471 | int retval; | |
4472 | ||
c8e73a31 AC |
4473 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4474 | attrib, target); | |
c906108c | 4475 | |
96baa820 | 4476 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4477 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4478 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4479 | write ? "write" : "read", retval); |
c906108c | 4480 | |
c906108c SS |
4481 | if (retval > 0) |
4482 | { | |
4483 | int i; | |
4484 | ||
96baa820 | 4485 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4486 | for (i = 0; i < retval; i++) |
4487 | { | |
53b71562 | 4488 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4489 | { |
4490 | if (targetdebug < 2 && i > 0) | |
4491 | { | |
4492 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4493 | break; | |
4494 | } | |
4495 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4496 | } | |
2bc416ba | 4497 | |
96baa820 | 4498 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4499 | } |
4500 | } | |
4501 | ||
96baa820 | 4502 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4503 | |
4504 | return retval; | |
4505 | } | |
4506 | ||
4507 | static void | |
fba45db2 | 4508 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4509 | { |
4510 | debug_target.to_files_info (target); | |
4511 | ||
96baa820 | 4512 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4513 | } |
4514 | ||
4515 | static int | |
a6d9a66e UW |
4516 | debug_to_insert_breakpoint (struct gdbarch *gdbarch, |
4517 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4518 | { |
4519 | int retval; | |
4520 | ||
a6d9a66e | 4521 | retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt); |
c906108c | 4522 | |
96baa820 | 4523 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4524 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4525 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4526 | (unsigned long) retval); |
c906108c SS |
4527 | return retval; |
4528 | } | |
4529 | ||
4530 | static int | |
a6d9a66e UW |
4531 | debug_to_remove_breakpoint (struct gdbarch *gdbarch, |
4532 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4533 | { |
4534 | int retval; | |
4535 | ||
a6d9a66e | 4536 | retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt); |
c906108c | 4537 | |
96baa820 | 4538 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4539 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4540 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4541 | (unsigned long) retval); |
c906108c SS |
4542 | return retval; |
4543 | } | |
4544 | ||
ccaa32c7 GS |
4545 | static int |
4546 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
4547 | { | |
4548 | int retval; | |
4549 | ||
4550 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
4551 | ||
4552 | fprintf_unfiltered (gdb_stdlog, | |
4553 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4554 | (unsigned long) type, | |
4555 | (unsigned long) cnt, | |
4556 | (unsigned long) from_tty, | |
4557 | (unsigned long) retval); | |
4558 | return retval; | |
4559 | } | |
4560 | ||
e0d24f8d WZ |
4561 | static int |
4562 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
4563 | { | |
4564 | CORE_ADDR retval; | |
4565 | ||
4566 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
4567 | ||
4568 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4569 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4570 | core_addr_to_string (addr), (unsigned long) len, | |
4571 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4572 | return retval; |
4573 | } | |
4574 | ||
0cf6dd15 TJB |
4575 | static int |
4576 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
4577 | struct expression *cond) | |
4578 | { | |
4579 | int retval; | |
4580 | ||
3e43a32a MS |
4581 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
4582 | rw, cond); | |
0cf6dd15 TJB |
4583 | |
4584 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4585 | "target_can_accel_watchpoint_condition " |
4586 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4587 | core_addr_to_string (addr), len, rw, |
4588 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4589 | return retval; |
4590 | } | |
4591 | ||
ccaa32c7 GS |
4592 | static int |
4593 | debug_to_stopped_by_watchpoint (void) | |
4594 | { | |
4595 | int retval; | |
4596 | ||
4597 | retval = debug_target.to_stopped_by_watchpoint (); | |
4598 | ||
4599 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4600 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4601 | (unsigned long) retval); |
4602 | return retval; | |
4603 | } | |
4604 | ||
4aa7a7f5 JJ |
4605 | static int |
4606 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4607 | { |
4aa7a7f5 | 4608 | int retval; |
ccaa32c7 | 4609 | |
4aa7a7f5 | 4610 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4611 | |
4612 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4613 | "target_stopped_data_address ([%s]) = %ld\n", |
4614 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4615 | (unsigned long)retval); |
ccaa32c7 GS |
4616 | return retval; |
4617 | } | |
4618 | ||
5009afc5 AS |
4619 | static int |
4620 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4621 | CORE_ADDR addr, | |
4622 | CORE_ADDR start, int length) | |
4623 | { | |
4624 | int retval; | |
4625 | ||
4626 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4627 | start, length); | |
4628 | ||
4629 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4630 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4631 | core_addr_to_string (addr), core_addr_to_string (start), | |
4632 | length, retval); | |
5009afc5 AS |
4633 | return retval; |
4634 | } | |
4635 | ||
ccaa32c7 | 4636 | static int |
a6d9a66e UW |
4637 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
4638 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4639 | { |
4640 | int retval; | |
4641 | ||
a6d9a66e | 4642 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4643 | |
4644 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4645 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4646 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4647 | (unsigned long) retval); |
4648 | return retval; | |
4649 | } | |
4650 | ||
4651 | static int | |
a6d9a66e UW |
4652 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
4653 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4654 | { |
4655 | int retval; | |
4656 | ||
a6d9a66e | 4657 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4658 | |
4659 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4660 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4661 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4662 | (unsigned long) retval); |
4663 | return retval; | |
4664 | } | |
4665 | ||
4666 | static int | |
0cf6dd15 TJB |
4667 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
4668 | struct expression *cond) | |
ccaa32c7 GS |
4669 | { |
4670 | int retval; | |
4671 | ||
0cf6dd15 | 4672 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4673 | |
4674 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4675 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4676 | core_addr_to_string (addr), len, type, | |
4677 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4678 | return retval; |
4679 | } | |
4680 | ||
4681 | static int | |
0cf6dd15 TJB |
4682 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type, |
4683 | struct expression *cond) | |
ccaa32c7 GS |
4684 | { |
4685 | int retval; | |
4686 | ||
0cf6dd15 | 4687 | retval = debug_target.to_remove_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4688 | |
4689 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4690 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4691 | core_addr_to_string (addr), len, type, | |
4692 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4693 | return retval; |
4694 | } | |
4695 | ||
c906108c | 4696 | static void |
fba45db2 | 4697 | debug_to_terminal_init (void) |
c906108c SS |
4698 | { |
4699 | debug_target.to_terminal_init (); | |
4700 | ||
96baa820 | 4701 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4702 | } |
4703 | ||
4704 | static void | |
fba45db2 | 4705 | debug_to_terminal_inferior (void) |
c906108c SS |
4706 | { |
4707 | debug_target.to_terminal_inferior (); | |
4708 | ||
96baa820 | 4709 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4710 | } |
4711 | ||
4712 | static void | |
fba45db2 | 4713 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
4714 | { |
4715 | debug_target.to_terminal_ours_for_output (); | |
4716 | ||
96baa820 | 4717 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4718 | } |
4719 | ||
4720 | static void | |
fba45db2 | 4721 | debug_to_terminal_ours (void) |
c906108c SS |
4722 | { |
4723 | debug_target.to_terminal_ours (); | |
4724 | ||
96baa820 | 4725 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4726 | } |
4727 | ||
a790ad35 SC |
4728 | static void |
4729 | debug_to_terminal_save_ours (void) | |
4730 | { | |
4731 | debug_target.to_terminal_save_ours (); | |
4732 | ||
4733 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4734 | } | |
4735 | ||
c906108c | 4736 | static void |
503ebb2c | 4737 | debug_to_terminal_info (const char *arg, int from_tty) |
c906108c SS |
4738 | { |
4739 | debug_target.to_terminal_info (arg, from_tty); | |
4740 | ||
96baa820 | 4741 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4742 | from_tty); |
4743 | } | |
4744 | ||
c906108c | 4745 | static void |
fba45db2 | 4746 | debug_to_load (char *args, int from_tty) |
c906108c SS |
4747 | { |
4748 | debug_target.to_load (args, from_tty); | |
4749 | ||
96baa820 | 4750 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4751 | } |
4752 | ||
c906108c | 4753 | static void |
39f77062 | 4754 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 4755 | { |
39f77062 | 4756 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 4757 | |
96baa820 | 4758 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4759 | ptid_get_pid (ptid)); |
c906108c SS |
4760 | } |
4761 | ||
77b06cd7 | 4762 | static int |
fba45db2 | 4763 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 4764 | { |
77b06cd7 TJB |
4765 | int retval; |
4766 | ||
4767 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
4768 | ||
4769 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4770 | pid, retval); | |
c906108c | 4771 | |
77b06cd7 | 4772 | return retval; |
c906108c SS |
4773 | } |
4774 | ||
4775 | static int | |
fba45db2 | 4776 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 4777 | { |
c5aa993b | 4778 | int retval; |
c906108c SS |
4779 | |
4780 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
4781 | ||
96baa820 | 4782 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4783 | pid, retval); |
c906108c SS |
4784 | |
4785 | return retval; | |
4786 | } | |
4787 | ||
77b06cd7 | 4788 | static int |
fba45db2 | 4789 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 4790 | { |
77b06cd7 TJB |
4791 | int retval; |
4792 | ||
4793 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 4794 | |
77b06cd7 TJB |
4795 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4796 | pid, retval); | |
4797 | ||
4798 | return retval; | |
c906108c SS |
4799 | } |
4800 | ||
4801 | static int | |
fba45db2 | 4802 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 4803 | { |
c5aa993b | 4804 | int retval; |
c906108c SS |
4805 | |
4806 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
4807 | ||
96baa820 | 4808 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4809 | pid, retval); |
c906108c SS |
4810 | |
4811 | return retval; | |
4812 | } | |
4813 | ||
77b06cd7 | 4814 | static int |
fba45db2 | 4815 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 4816 | { |
77b06cd7 TJB |
4817 | int retval; |
4818 | ||
4819 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 4820 | |
77b06cd7 TJB |
4821 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4822 | pid, retval); | |
4823 | ||
4824 | return retval; | |
c906108c SS |
4825 | } |
4826 | ||
4827 | static int | |
fba45db2 | 4828 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 4829 | { |
c5aa993b | 4830 | int retval; |
c906108c SS |
4831 | |
4832 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
4833 | ||
96baa820 | 4834 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4835 | pid, retval); |
c906108c SS |
4836 | |
4837 | return retval; | |
4838 | } | |
4839 | ||
c906108c | 4840 | static int |
fba45db2 | 4841 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 4842 | { |
c5aa993b | 4843 | int has_exited; |
c906108c SS |
4844 | |
4845 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
4846 | ||
96baa820 | 4847 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4848 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4849 | |
4850 | return has_exited; | |
4851 | } | |
4852 | ||
c906108c | 4853 | static int |
fba45db2 | 4854 | debug_to_can_run (void) |
c906108c SS |
4855 | { |
4856 | int retval; | |
4857 | ||
4858 | retval = debug_target.to_can_run (); | |
4859 | ||
96baa820 | 4860 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4861 | |
4862 | return retval; | |
4863 | } | |
4864 | ||
c2250ad1 UW |
4865 | static struct gdbarch * |
4866 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4867 | { | |
4868 | struct gdbarch *retval; | |
4869 | ||
4870 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4871 | ||
3e43a32a MS |
4872 | fprintf_unfiltered (gdb_stdlog, |
4873 | "target_thread_architecture (%s) = %s [%s]\n", | |
4874 | target_pid_to_str (ptid), | |
4875 | host_address_to_string (retval), | |
c2250ad1 UW |
4876 | gdbarch_bfd_arch_info (retval)->printable_name); |
4877 | return retval; | |
4878 | } | |
4879 | ||
c906108c | 4880 | static void |
94cc34af | 4881 | debug_to_stop (ptid_t ptid) |
c906108c | 4882 | { |
94cc34af | 4883 | debug_target.to_stop (ptid); |
c906108c | 4884 | |
94cc34af PA |
4885 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4886 | target_pid_to_str (ptid)); | |
c906108c SS |
4887 | } |
4888 | ||
96baa820 JM |
4889 | static void |
4890 | debug_to_rcmd (char *command, | |
d9fcf2fb | 4891 | struct ui_file *outbuf) |
96baa820 JM |
4892 | { |
4893 | debug_target.to_rcmd (command, outbuf); | |
4894 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
4895 | } | |
4896 | ||
c906108c | 4897 | static char * |
fba45db2 | 4898 | debug_to_pid_to_exec_file (int pid) |
c906108c | 4899 | { |
c5aa993b | 4900 | char *exec_file; |
c906108c SS |
4901 | |
4902 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
4903 | ||
96baa820 | 4904 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4905 | pid, exec_file); |
c906108c SS |
4906 | |
4907 | return exec_file; | |
4908 | } | |
4909 | ||
c906108c | 4910 | static void |
fba45db2 | 4911 | setup_target_debug (void) |
c906108c SS |
4912 | { |
4913 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4914 | ||
4915 | current_target.to_open = debug_to_open; | |
c906108c | 4916 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4917 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4918 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4919 | current_target.to_files_info = debug_to_files_info; |
4920 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4921 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4922 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4923 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4924 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4925 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4926 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4927 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4928 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4929 | current_target.to_watchpoint_addr_within_range |
4930 | = debug_to_watchpoint_addr_within_range; | |
4931 | current_target.to_region_ok_for_hw_watchpoint | |
4932 | = debug_to_region_ok_for_hw_watchpoint; | |
4933 | current_target.to_can_accel_watchpoint_condition | |
4934 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4935 | current_target.to_terminal_init = debug_to_terminal_init; |
4936 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4937 | current_target.to_terminal_ours_for_output |
4938 | = debug_to_terminal_ours_for_output; | |
c906108c | 4939 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4940 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4941 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4942 | current_target.to_load = debug_to_load; |
c906108c | 4943 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4944 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4945 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4946 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4947 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4948 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4949 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4950 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4951 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4952 | current_target.to_stop = debug_to_stop; |
96baa820 | 4953 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4954 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4955 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4956 | } |
c906108c | 4957 | \f |
c5aa993b JM |
4958 | |
4959 | static char targ_desc[] = | |
3e43a32a MS |
4960 | "Names of targets and files being debugged.\nShows the entire \ |
4961 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4962 | core-file, and process, if any), as well as the symbol file name."; |
4963 | ||
96baa820 JM |
4964 | static void |
4965 | do_monitor_command (char *cmd, | |
4966 | int from_tty) | |
4967 | { | |
2b5fe715 AC |
4968 | if ((current_target.to_rcmd |
4969 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 4970 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
4971 | && (debug_target.to_rcmd |
4972 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 4973 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
4974 | target_rcmd (cmd, gdb_stdtarg); |
4975 | } | |
4976 | ||
87680a14 JB |
4977 | /* Print the name of each layers of our target stack. */ |
4978 | ||
4979 | static void | |
4980 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4981 | { | |
4982 | struct target_ops *t; | |
4983 | ||
4984 | printf_filtered (_("The current target stack is:\n")); | |
4985 | ||
4986 | for (t = target_stack; t != NULL; t = t->beneath) | |
4987 | { | |
4988 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4989 | } | |
4990 | } | |
4991 | ||
c6ebd6cf VP |
4992 | /* Controls if async mode is permitted. */ |
4993 | int target_async_permitted = 0; | |
4994 | ||
4995 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4996 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4997 | static int target_async_permitted_1 = 0; |
4998 | ||
4999 | static void | |
9401a810 PA |
5000 | set_target_async_command (char *args, int from_tty, |
5001 | struct cmd_list_element *c) | |
c6ebd6cf | 5002 | { |
c35b1492 | 5003 | if (have_live_inferiors ()) |
c6ebd6cf VP |
5004 | { |
5005 | target_async_permitted_1 = target_async_permitted; | |
5006 | error (_("Cannot change this setting while the inferior is running.")); | |
5007 | } | |
5008 | ||
5009 | target_async_permitted = target_async_permitted_1; | |
5010 | } | |
5011 | ||
5012 | static void | |
9401a810 PA |
5013 | show_target_async_command (struct ui_file *file, int from_tty, |
5014 | struct cmd_list_element *c, | |
5015 | const char *value) | |
c6ebd6cf | 5016 | { |
3e43a32a MS |
5017 | fprintf_filtered (file, |
5018 | _("Controlling the inferior in " | |
5019 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5020 | } |
5021 | ||
d914c394 SS |
5022 | /* Temporary copies of permission settings. */ |
5023 | ||
5024 | static int may_write_registers_1 = 1; | |
5025 | static int may_write_memory_1 = 1; | |
5026 | static int may_insert_breakpoints_1 = 1; | |
5027 | static int may_insert_tracepoints_1 = 1; | |
5028 | static int may_insert_fast_tracepoints_1 = 1; | |
5029 | static int may_stop_1 = 1; | |
5030 | ||
5031 | /* Make the user-set values match the real values again. */ | |
5032 | ||
5033 | void | |
5034 | update_target_permissions (void) | |
5035 | { | |
5036 | may_write_registers_1 = may_write_registers; | |
5037 | may_write_memory_1 = may_write_memory; | |
5038 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5039 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5040 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5041 | may_stop_1 = may_stop; | |
5042 | } | |
5043 | ||
5044 | /* The one function handles (most of) the permission flags in the same | |
5045 | way. */ | |
5046 | ||
5047 | static void | |
5048 | set_target_permissions (char *args, int from_tty, | |
5049 | struct cmd_list_element *c) | |
5050 | { | |
5051 | if (target_has_execution) | |
5052 | { | |
5053 | update_target_permissions (); | |
5054 | error (_("Cannot change this setting while the inferior is running.")); | |
5055 | } | |
5056 | ||
5057 | /* Make the real values match the user-changed values. */ | |
5058 | may_write_registers = may_write_registers_1; | |
5059 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5060 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5061 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5062 | may_stop = may_stop_1; | |
5063 | update_observer_mode (); | |
5064 | } | |
5065 | ||
5066 | /* Set memory write permission independently of observer mode. */ | |
5067 | ||
5068 | static void | |
5069 | set_write_memory_permission (char *args, int from_tty, | |
5070 | struct cmd_list_element *c) | |
5071 | { | |
5072 | /* Make the real values match the user-changed values. */ | |
5073 | may_write_memory = may_write_memory_1; | |
5074 | update_observer_mode (); | |
5075 | } | |
5076 | ||
5077 | ||
c906108c | 5078 | void |
fba45db2 | 5079 | initialize_targets (void) |
c906108c SS |
5080 | { |
5081 | init_dummy_target (); | |
5082 | push_target (&dummy_target); | |
5083 | ||
5084 | add_info ("target", target_info, targ_desc); | |
5085 | add_info ("files", target_info, targ_desc); | |
5086 | ||
ccce17b0 | 5087 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5088 | Set target debugging."), _("\ |
5089 | Show target debugging."), _("\ | |
333dabeb DJ |
5090 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5091 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5092 | command."), |
ccce17b0 YQ |
5093 | NULL, |
5094 | show_targetdebug, | |
5095 | &setdebuglist, &showdebuglist); | |
3a11626d | 5096 | |
2bc416ba | 5097 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5098 | &trust_readonly, _("\ |
5099 | Set mode for reading from readonly sections."), _("\ | |
5100 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5101 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5102 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5103 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5104 | NULL, |
920d2a44 | 5105 | show_trust_readonly, |
e707bbc2 | 5106 | &setlist, &showlist); |
96baa820 JM |
5107 | |
5108 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5109 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5110 | |
87680a14 JB |
5111 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5112 | _("Print the name of each layer of the internal target stack."), | |
5113 | &maintenanceprintlist); | |
5114 | ||
c6ebd6cf VP |
5115 | add_setshow_boolean_cmd ("target-async", no_class, |
5116 | &target_async_permitted_1, _("\ | |
5117 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5118 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5119 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5120 | set_target_async_command, |
5121 | show_target_async_command, | |
c6ebd6cf VP |
5122 | &setlist, |
5123 | &showlist); | |
5124 | ||
4e5d721f | 5125 | add_setshow_boolean_cmd ("stack-cache", class_support, |
9cf1b572 | 5126 | &stack_cache_enabled_p_1, _("\ |
4e5d721f DE |
5127 | Set cache use for stack access."), _("\ |
5128 | Show cache use for stack access."), _("\ | |
5129 | When on, use the data cache for all stack access, regardless of any\n\ | |
5130 | configured memory regions. This improves remote performance significantly.\n\ | |
5131 | By default, caching for stack access is on."), | |
5132 | set_stack_cache_enabled_p, | |
5133 | show_stack_cache_enabled_p, | |
5134 | &setlist, &showlist); | |
5135 | ||
d914c394 SS |
5136 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5137 | &may_write_registers_1, _("\ | |
5138 | Set permission to write into registers."), _("\ | |
5139 | Show permission to write into registers."), _("\ | |
5140 | When this permission is on, GDB may write into the target's registers.\n\ | |
5141 | Otherwise, any sort of write attempt will result in an error."), | |
5142 | set_target_permissions, NULL, | |
5143 | &setlist, &showlist); | |
5144 | ||
5145 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5146 | &may_write_memory_1, _("\ | |
5147 | Set permission to write into target memory."), _("\ | |
5148 | Show permission to write into target memory."), _("\ | |
5149 | When this permission is on, GDB may write into the target's memory.\n\ | |
5150 | Otherwise, any sort of write attempt will result in an error."), | |
5151 | set_write_memory_permission, NULL, | |
5152 | &setlist, &showlist); | |
5153 | ||
5154 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5155 | &may_insert_breakpoints_1, _("\ | |
5156 | Set permission to insert breakpoints in the target."), _("\ | |
5157 | Show permission to insert breakpoints in the target."), _("\ | |
5158 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5159 | Otherwise, any sort of insertion attempt will result in an error."), | |
5160 | set_target_permissions, NULL, | |
5161 | &setlist, &showlist); | |
5162 | ||
5163 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5164 | &may_insert_tracepoints_1, _("\ | |
5165 | Set permission to insert tracepoints in the target."), _("\ | |
5166 | Show permission to insert tracepoints in the target."), _("\ | |
5167 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5168 | Otherwise, any sort of insertion attempt will result in an error."), | |
5169 | set_target_permissions, NULL, | |
5170 | &setlist, &showlist); | |
5171 | ||
5172 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5173 | &may_insert_fast_tracepoints_1, _("\ | |
5174 | Set permission to insert fast tracepoints in the target."), _("\ | |
5175 | Show permission to insert fast tracepoints in the target."), _("\ | |
5176 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5177 | Otherwise, any sort of insertion attempt will result in an error."), | |
5178 | set_target_permissions, NULL, | |
5179 | &setlist, &showlist); | |
5180 | ||
5181 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5182 | &may_stop_1, _("\ | |
5183 | Set permission to interrupt or signal the target."), _("\ | |
5184 | Show permission to interrupt or signal the target."), _("\ | |
5185 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5186 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5187 | set_target_permissions, NULL, | |
5188 | &setlist, &showlist); | |
5189 | ||
5190 | ||
8add0441 | 5191 | target_dcache = dcache_init (); |
c906108c | 5192 | } |