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 | |
cf7a04e8 DJ |
84 | static LONGEST target_xfer_partial (struct target_ops *ops, |
85 | enum target_object object, | |
86 | const char *annex, | |
87 | void *readbuf, const void *writebuf, | |
88 | ULONGEST offset, LONGEST len); | |
c906108c | 89 | |
c2250ad1 UW |
90 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
91 | ptid_t ptid); | |
92 | ||
a14ed312 | 93 | static void init_dummy_target (void); |
c906108c | 94 | |
aa869812 AC |
95 | static struct target_ops debug_target; |
96 | ||
a14ed312 | 97 | static void debug_to_open (char *, int); |
c906108c | 98 | |
316f2060 | 99 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 100 | |
a14ed312 | 101 | static void debug_to_files_info (struct target_ops *); |
c906108c | 102 | |
a6d9a66e UW |
103 | static int debug_to_insert_breakpoint (struct gdbarch *, |
104 | struct bp_target_info *); | |
c906108c | 105 | |
a6d9a66e UW |
106 | static int debug_to_remove_breakpoint (struct gdbarch *, |
107 | struct bp_target_info *); | |
c906108c | 108 | |
ccaa32c7 GS |
109 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
110 | ||
a6d9a66e UW |
111 | static int debug_to_insert_hw_breakpoint (struct gdbarch *, |
112 | struct bp_target_info *); | |
ccaa32c7 | 113 | |
a6d9a66e UW |
114 | static int debug_to_remove_hw_breakpoint (struct gdbarch *, |
115 | struct bp_target_info *); | |
ccaa32c7 | 116 | |
0cf6dd15 TJB |
117 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int, |
118 | struct expression *); | |
ccaa32c7 | 119 | |
0cf6dd15 TJB |
120 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int, |
121 | struct expression *); | |
ccaa32c7 GS |
122 | |
123 | static int debug_to_stopped_by_watchpoint (void); | |
124 | ||
4aa7a7f5 | 125 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 126 | |
5009afc5 AS |
127 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
128 | CORE_ADDR, CORE_ADDR, int); | |
129 | ||
e0d24f8d WZ |
130 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
131 | ||
0cf6dd15 TJB |
132 | static int debug_to_can_accel_watchpoint_condition (CORE_ADDR, int, int, |
133 | struct expression *); | |
134 | ||
a14ed312 | 135 | static void debug_to_terminal_init (void); |
c906108c | 136 | |
a14ed312 | 137 | static void debug_to_terminal_inferior (void); |
c906108c | 138 | |
a14ed312 | 139 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 140 | |
a790ad35 SC |
141 | static void debug_to_terminal_save_ours (void); |
142 | ||
a14ed312 | 143 | static void debug_to_terminal_ours (void); |
c906108c | 144 | |
a14ed312 | 145 | static void debug_to_load (char *, int); |
c906108c | 146 | |
a14ed312 | 147 | static int debug_to_can_run (void); |
c906108c | 148 | |
94cc34af | 149 | static void debug_to_stop (ptid_t); |
c906108c | 150 | |
c906108c | 151 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 152 | array; the current index into the array; the allocated size of the |
c906108c SS |
153 | array. */ |
154 | struct target_ops **target_structs; | |
155 | unsigned target_struct_size; | |
156 | unsigned target_struct_index; | |
157 | unsigned target_struct_allocsize; | |
158 | #define DEFAULT_ALLOCSIZE 10 | |
159 | ||
160 | /* The initial current target, so that there is always a semi-valid | |
161 | current target. */ | |
162 | ||
163 | static struct target_ops dummy_target; | |
164 | ||
165 | /* Top of target stack. */ | |
166 | ||
258b763a | 167 | static struct target_ops *target_stack; |
c906108c SS |
168 | |
169 | /* The target structure we are currently using to talk to a process | |
170 | or file or whatever "inferior" we have. */ | |
171 | ||
172 | struct target_ops current_target; | |
173 | ||
174 | /* Command list for target. */ | |
175 | ||
176 | static struct cmd_list_element *targetlist = NULL; | |
177 | ||
cf7a04e8 DJ |
178 | /* Nonzero if we should trust readonly sections from the |
179 | executable when reading memory. */ | |
180 | ||
181 | static int trust_readonly = 0; | |
182 | ||
8defab1a DJ |
183 | /* Nonzero if we should show true memory content including |
184 | memory breakpoint inserted by gdb. */ | |
185 | ||
186 | static int show_memory_breakpoints = 0; | |
187 | ||
d914c394 SS |
188 | /* These globals control whether GDB attempts to perform these |
189 | operations; they are useful for targets that need to prevent | |
190 | inadvertant disruption, such as in non-stop mode. */ | |
191 | ||
192 | int may_write_registers = 1; | |
193 | ||
194 | int may_write_memory = 1; | |
195 | ||
196 | int may_insert_breakpoints = 1; | |
197 | ||
198 | int may_insert_tracepoints = 1; | |
199 | ||
200 | int may_insert_fast_tracepoints = 1; | |
201 | ||
202 | int may_stop = 1; | |
203 | ||
c906108c SS |
204 | /* Non-zero if we want to see trace of target level stuff. */ |
205 | ||
ccce17b0 | 206 | static unsigned int targetdebug = 0; |
920d2a44 AC |
207 | static void |
208 | show_targetdebug (struct ui_file *file, int from_tty, | |
209 | struct cmd_list_element *c, const char *value) | |
210 | { | |
211 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
212 | } | |
c906108c | 213 | |
a14ed312 | 214 | static void setup_target_debug (void); |
c906108c | 215 | |
4e5d721f DE |
216 | /* The option sets this. */ |
217 | static int stack_cache_enabled_p_1 = 1; | |
218 | /* And set_stack_cache_enabled_p updates this. | |
219 | The reason for the separation is so that we don't flush the cache for | |
220 | on->on transitions. */ | |
221 | static int stack_cache_enabled_p = 1; | |
222 | ||
223 | /* This is called *after* the stack-cache has been set. | |
224 | Flush the cache for off->on and on->off transitions. | |
225 | There's no real need to flush the cache for on->off transitions, | |
226 | except cleanliness. */ | |
227 | ||
228 | static void | |
229 | set_stack_cache_enabled_p (char *args, int from_tty, | |
230 | struct cmd_list_element *c) | |
231 | { | |
232 | if (stack_cache_enabled_p != stack_cache_enabled_p_1) | |
233 | target_dcache_invalidate (); | |
234 | ||
235 | stack_cache_enabled_p = stack_cache_enabled_p_1; | |
236 | } | |
237 | ||
238 | static void | |
239 | show_stack_cache_enabled_p (struct ui_file *file, int from_tty, | |
240 | struct cmd_list_element *c, const char *value) | |
241 | { | |
242 | fprintf_filtered (file, _("Cache use for stack accesses is %s.\n"), value); | |
243 | } | |
244 | ||
245 | /* Cache of memory operations, to speed up remote access. */ | |
246 | static DCACHE *target_dcache; | |
247 | ||
248 | /* Invalidate the target dcache. */ | |
249 | ||
250 | void | |
251 | target_dcache_invalidate (void) | |
252 | { | |
253 | dcache_invalidate (target_dcache); | |
254 | } | |
4930751a | 255 | |
c906108c SS |
256 | /* The user just typed 'target' without the name of a target. */ |
257 | ||
c906108c | 258 | static void |
fba45db2 | 259 | target_command (char *arg, int from_tty) |
c906108c SS |
260 | { |
261 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
262 | gdb_stdout); | |
263 | } | |
264 | ||
c35b1492 PA |
265 | /* Default target_has_* methods for process_stratum targets. */ |
266 | ||
267 | int | |
268 | default_child_has_all_memory (struct target_ops *ops) | |
269 | { | |
270 | /* If no inferior selected, then we can't read memory here. */ | |
271 | if (ptid_equal (inferior_ptid, null_ptid)) | |
272 | return 0; | |
273 | ||
274 | return 1; | |
275 | } | |
276 | ||
277 | int | |
278 | default_child_has_memory (struct target_ops *ops) | |
279 | { | |
280 | /* If no inferior selected, then we can't read memory here. */ | |
281 | if (ptid_equal (inferior_ptid, null_ptid)) | |
282 | return 0; | |
283 | ||
284 | return 1; | |
285 | } | |
286 | ||
287 | int | |
288 | default_child_has_stack (struct target_ops *ops) | |
289 | { | |
290 | /* If no inferior selected, there's no stack. */ | |
291 | if (ptid_equal (inferior_ptid, null_ptid)) | |
292 | return 0; | |
293 | ||
294 | return 1; | |
295 | } | |
296 | ||
297 | int | |
298 | default_child_has_registers (struct target_ops *ops) | |
299 | { | |
300 | /* Can't read registers from no inferior. */ | |
301 | if (ptid_equal (inferior_ptid, null_ptid)) | |
302 | return 0; | |
303 | ||
304 | return 1; | |
305 | } | |
306 | ||
307 | int | |
aeaec162 | 308 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
309 | { |
310 | /* If there's no thread selected, then we can't make it run through | |
311 | hoops. */ | |
aeaec162 | 312 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
313 | return 0; |
314 | ||
315 | return 1; | |
316 | } | |
317 | ||
318 | ||
319 | int | |
320 | target_has_all_memory_1 (void) | |
321 | { | |
322 | struct target_ops *t; | |
323 | ||
324 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
325 | if (t->to_has_all_memory (t)) | |
326 | return 1; | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | int | |
332 | target_has_memory_1 (void) | |
333 | { | |
334 | struct target_ops *t; | |
335 | ||
336 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
337 | if (t->to_has_memory (t)) | |
338 | return 1; | |
339 | ||
340 | return 0; | |
341 | } | |
342 | ||
343 | int | |
344 | target_has_stack_1 (void) | |
345 | { | |
346 | struct target_ops *t; | |
347 | ||
348 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
349 | if (t->to_has_stack (t)) | |
350 | return 1; | |
351 | ||
352 | return 0; | |
353 | } | |
354 | ||
355 | int | |
356 | target_has_registers_1 (void) | |
357 | { | |
358 | struct target_ops *t; | |
359 | ||
360 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
361 | if (t->to_has_registers (t)) | |
362 | return 1; | |
363 | ||
364 | return 0; | |
365 | } | |
366 | ||
367 | int | |
aeaec162 | 368 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
369 | { |
370 | struct target_ops *t; | |
371 | ||
372 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 373 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
374 | return 1; |
375 | ||
376 | return 0; | |
377 | } | |
378 | ||
aeaec162 TT |
379 | int |
380 | target_has_execution_current (void) | |
381 | { | |
382 | return target_has_execution_1 (inferior_ptid); | |
383 | } | |
384 | ||
9852c492 YQ |
385 | /* Add possible target architecture T to the list and add a new |
386 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
387 | completer if not NULL. */ | |
c906108c SS |
388 | |
389 | void | |
9852c492 YQ |
390 | add_target_with_completer (struct target_ops *t, |
391 | completer_ftype *completer) | |
c906108c | 392 | { |
9852c492 YQ |
393 | struct cmd_list_element *c; |
394 | ||
0088c768 | 395 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
396 | if (t->to_xfer_partial == NULL) |
397 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 398 | |
c35b1492 PA |
399 | if (t->to_has_all_memory == NULL) |
400 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
401 | ||
402 | if (t->to_has_memory == NULL) | |
403 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
404 | ||
405 | if (t->to_has_stack == NULL) | |
406 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
407 | ||
408 | if (t->to_has_registers == NULL) | |
409 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
410 | ||
411 | if (t->to_has_execution == NULL) | |
aeaec162 | 412 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
c35b1492 | 413 | |
c906108c SS |
414 | if (!target_structs) |
415 | { | |
416 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
417 | target_structs = (struct target_ops **) xmalloc | |
418 | (target_struct_allocsize * sizeof (*target_structs)); | |
419 | } | |
420 | if (target_struct_size >= target_struct_allocsize) | |
421 | { | |
422 | target_struct_allocsize *= 2; | |
423 | target_structs = (struct target_ops **) | |
c5aa993b JM |
424 | xrealloc ((char *) target_structs, |
425 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
426 | } |
427 | target_structs[target_struct_size++] = t; | |
c906108c SS |
428 | |
429 | if (targetlist == NULL) | |
1bedd215 AC |
430 | add_prefix_cmd ("target", class_run, target_command, _("\ |
431 | Connect to a target machine or process.\n\ | |
c906108c SS |
432 | The first argument is the type or protocol of the target machine.\n\ |
433 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
434 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 435 | `help target ' followed by the protocol name."), |
c906108c | 436 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
437 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
438 | &targetlist); | |
439 | if (completer != NULL) | |
440 | set_cmd_completer (c, completer); | |
441 | } | |
442 | ||
443 | /* Add a possible target architecture to the list. */ | |
444 | ||
445 | void | |
446 | add_target (struct target_ops *t) | |
447 | { | |
448 | add_target_with_completer (t, NULL); | |
c906108c SS |
449 | } |
450 | ||
b48d48eb MM |
451 | /* See target.h. */ |
452 | ||
453 | void | |
454 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
455 | { | |
456 | struct cmd_list_element *c; | |
457 | char *alt; | |
458 | ||
459 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
460 | see PR cli/15104. */ | |
461 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
462 | alt = xstrprintf ("target %s", t->to_shortname); | |
463 | deprecate_cmd (c, alt); | |
464 | } | |
465 | ||
c906108c SS |
466 | /* Stub functions */ |
467 | ||
468 | void | |
fba45db2 | 469 | target_ignore (void) |
c906108c SS |
470 | { |
471 | } | |
472 | ||
7d85a9c0 JB |
473 | void |
474 | target_kill (void) | |
475 | { | |
476 | struct target_ops *t; | |
477 | ||
478 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
479 | if (t->to_kill != NULL) | |
480 | { | |
481 | if (targetdebug) | |
482 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
483 | ||
484 | t->to_kill (t); | |
485 | return; | |
486 | } | |
487 | ||
488 | noprocess (); | |
489 | } | |
490 | ||
11cf8741 JM |
491 | void |
492 | target_load (char *arg, int from_tty) | |
493 | { | |
4e5d721f | 494 | target_dcache_invalidate (); |
11cf8741 JM |
495 | (*current_target.to_load) (arg, from_tty); |
496 | } | |
497 | ||
947b8855 PA |
498 | void |
499 | target_create_inferior (char *exec_file, char *args, | |
500 | char **env, int from_tty) | |
136d6dae VP |
501 | { |
502 | struct target_ops *t; | |
5d502164 | 503 | |
136d6dae VP |
504 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
505 | { | |
506 | if (t->to_create_inferior != NULL) | |
507 | { | |
508 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
509 | if (targetdebug) |
510 | fprintf_unfiltered (gdb_stdlog, | |
511 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
512 | exec_file, args, from_tty); | |
136d6dae VP |
513 | return; |
514 | } | |
515 | } | |
516 | ||
517 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 518 | _("could not find a target to create inferior")); |
136d6dae VP |
519 | } |
520 | ||
d9d2d8b6 PA |
521 | void |
522 | target_terminal_inferior (void) | |
523 | { | |
524 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 525 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
526 | this point the target is not async yet. However, if sync_execution |
527 | is not set, we know it will become async prior to resume. */ | |
528 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
529 | return; |
530 | ||
531 | /* If GDB is resuming the inferior in the foreground, install | |
532 | inferior's terminal modes. */ | |
533 | (*current_target.to_terminal_inferior) (); | |
534 | } | |
136d6dae | 535 | |
c906108c | 536 | static int |
fba45db2 KB |
537 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
538 | struct target_ops *t) | |
c906108c | 539 | { |
c378eb4e MS |
540 | errno = EIO; /* Can't read/write this location. */ |
541 | return 0; /* No bytes handled. */ | |
c906108c SS |
542 | } |
543 | ||
544 | static void | |
fba45db2 | 545 | tcomplain (void) |
c906108c | 546 | { |
8a3fe4f8 | 547 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
548 | current_target.to_shortname); |
549 | } | |
550 | ||
551 | void | |
fba45db2 | 552 | noprocess (void) |
c906108c | 553 | { |
8a3fe4f8 | 554 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
555 | } |
556 | ||
c906108c | 557 | static void |
503ebb2c | 558 | default_terminal_info (const char *args, int from_tty) |
c906108c | 559 | { |
a3f17187 | 560 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
561 | } |
562 | ||
0ef643c8 JB |
563 | /* A default implementation for the to_get_ada_task_ptid target method. |
564 | ||
565 | This function builds the PTID by using both LWP and TID as part of | |
566 | the PTID lwp and tid elements. The pid used is the pid of the | |
567 | inferior_ptid. */ | |
568 | ||
2c0b251b | 569 | static ptid_t |
0ef643c8 JB |
570 | default_get_ada_task_ptid (long lwp, long tid) |
571 | { | |
572 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
573 | } | |
574 | ||
32231432 PA |
575 | static enum exec_direction_kind |
576 | default_execution_direction (void) | |
577 | { | |
578 | if (!target_can_execute_reverse) | |
579 | return EXEC_FORWARD; | |
580 | else if (!target_can_async_p ()) | |
581 | return EXEC_FORWARD; | |
582 | else | |
583 | gdb_assert_not_reached ("\ | |
584 | to_execution_direction must be implemented for reverse async"); | |
585 | } | |
586 | ||
7998dfc3 AC |
587 | /* Go through the target stack from top to bottom, copying over zero |
588 | entries in current_target, then filling in still empty entries. In | |
589 | effect, we are doing class inheritance through the pushed target | |
590 | vectors. | |
591 | ||
592 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
593 | is currently implemented, is that it discards any knowledge of | |
594 | which target an inherited method originally belonged to. | |
595 | Consequently, new new target methods should instead explicitly and | |
596 | locally search the target stack for the target that can handle the | |
597 | request. */ | |
c906108c SS |
598 | |
599 | static void | |
7998dfc3 | 600 | update_current_target (void) |
c906108c | 601 | { |
7998dfc3 AC |
602 | struct target_ops *t; |
603 | ||
08d8bcd7 | 604 | /* First, reset current's contents. */ |
7998dfc3 AC |
605 | memset (¤t_target, 0, sizeof (current_target)); |
606 | ||
607 | #define INHERIT(FIELD, TARGET) \ | |
608 | if (!current_target.FIELD) \ | |
609 | current_target.FIELD = (TARGET)->FIELD | |
610 | ||
611 | for (t = target_stack; t; t = t->beneath) | |
612 | { | |
613 | INHERIT (to_shortname, t); | |
614 | INHERIT (to_longname, t); | |
615 | INHERIT (to_doc, t); | |
b52323fa UW |
616 | /* Do not inherit to_open. */ |
617 | /* Do not inherit to_close. */ | |
136d6dae | 618 | /* Do not inherit to_attach. */ |
7998dfc3 | 619 | INHERIT (to_post_attach, t); |
dc177b7a | 620 | INHERIT (to_attach_no_wait, t); |
136d6dae | 621 | /* Do not inherit to_detach. */ |
597320e7 | 622 | /* Do not inherit to_disconnect. */ |
28439f5e | 623 | /* Do not inherit to_resume. */ |
117de6a9 | 624 | /* Do not inherit to_wait. */ |
28439f5e PA |
625 | /* Do not inherit to_fetch_registers. */ |
626 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 627 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 628 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
629 | INHERIT (to_files_info, t); |
630 | INHERIT (to_insert_breakpoint, t); | |
631 | INHERIT (to_remove_breakpoint, t); | |
632 | INHERIT (to_can_use_hw_breakpoint, t); | |
633 | INHERIT (to_insert_hw_breakpoint, t); | |
634 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 635 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
636 | INHERIT (to_insert_watchpoint, t); |
637 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
638 | /* Do not inherit to_insert_mask_watchpoint. */ |
639 | /* Do not inherit to_remove_mask_watchpoint. */ | |
7998dfc3 | 640 | INHERIT (to_stopped_data_address, t); |
74174d2e | 641 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 642 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
643 | INHERIT (to_stopped_by_watchpoint, t); |
644 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 645 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 646 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 647 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
648 | INHERIT (to_terminal_init, t); |
649 | INHERIT (to_terminal_inferior, t); | |
650 | INHERIT (to_terminal_ours_for_output, t); | |
651 | INHERIT (to_terminal_ours, t); | |
652 | INHERIT (to_terminal_save_ours, t); | |
653 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 654 | /* Do not inherit to_kill. */ |
7998dfc3 | 655 | INHERIT (to_load, t); |
136d6dae | 656 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 657 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
658 | INHERIT (to_insert_fork_catchpoint, t); |
659 | INHERIT (to_remove_fork_catchpoint, t); | |
660 | INHERIT (to_insert_vfork_catchpoint, t); | |
661 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 662 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
663 | INHERIT (to_insert_exec_catchpoint, t); |
664 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 665 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 666 | INHERIT (to_has_exited, t); |
82892036 | 667 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 668 | INHERIT (to_can_run, t); |
2455069d | 669 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 670 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
671 | /* Do not inherit to_thread_alive. */ |
672 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 673 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 674 | INHERIT (to_extra_thread_info, t); |
4694da01 | 675 | INHERIT (to_thread_name, t); |
7998dfc3 | 676 | INHERIT (to_stop, t); |
4b8a223f | 677 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 678 | INHERIT (to_rcmd, t); |
7998dfc3 | 679 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 680 | INHERIT (to_log_command, t); |
7998dfc3 | 681 | INHERIT (to_stratum, t); |
c378eb4e MS |
682 | /* Do not inherit to_has_all_memory. */ |
683 | /* Do not inherit to_has_memory. */ | |
684 | /* Do not inherit to_has_stack. */ | |
685 | /* Do not inherit to_has_registers. */ | |
686 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 687 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
688 | INHERIT (to_can_async_p, t); |
689 | INHERIT (to_is_async_p, t); | |
690 | INHERIT (to_async, t); | |
7998dfc3 AC |
691 | INHERIT (to_find_memory_regions, t); |
692 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
693 | INHERIT (to_get_bookmark, t); |
694 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 695 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 696 | INHERIT (to_can_execute_reverse, t); |
32231432 | 697 | INHERIT (to_execution_direction, t); |
c2250ad1 | 698 | INHERIT (to_thread_architecture, t); |
424163ea | 699 | /* Do not inherit to_read_description. */ |
0ef643c8 | 700 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 701 | /* Do not inherit to_search_memory. */ |
8a305172 | 702 | INHERIT (to_supports_multi_process, t); |
d248b706 | 703 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 704 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
705 | INHERIT (to_trace_init, t); |
706 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 707 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 708 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
709 | INHERIT (to_enable_tracepoint, t); |
710 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
711 | INHERIT (to_trace_set_readonly_regions, t); |
712 | INHERIT (to_trace_start, t); | |
713 | INHERIT (to_get_trace_status, t); | |
f196051f | 714 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
715 | INHERIT (to_trace_stop, t); |
716 | INHERIT (to_trace_find, t); | |
717 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
718 | INHERIT (to_save_trace_data, t); |
719 | INHERIT (to_upload_tracepoints, t); | |
720 | INHERIT (to_upload_trace_state_variables, t); | |
721 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 722 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 723 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 724 | INHERIT (to_set_circular_trace_buffer, t); |
f6f899bf | 725 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 726 | INHERIT (to_set_trace_notes, t); |
711e434b | 727 | INHERIT (to_get_tib_address, t); |
d914c394 | 728 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
729 | INHERIT (to_static_tracepoint_marker_at, t); |
730 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 731 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
732 | INHERIT (to_use_agent, t); |
733 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 734 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 735 | INHERIT (to_magic, t); |
b775012e | 736 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 737 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 738 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
739 | /* Do not inherit to_flash_erase. */ |
740 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
741 | } |
742 | #undef INHERIT | |
743 | ||
744 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
745 | it. Some entries are defaulted to a method that print an error, |
746 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
747 | |
748 | #define de_fault(field, value) \ | |
7998dfc3 AC |
749 | if (!current_target.field) \ |
750 | current_target.field = value | |
0d06e24b | 751 | |
2bc416ba DJ |
752 | de_fault (to_open, |
753 | (void (*) (char *, int)) | |
0d06e24b | 754 | tcomplain); |
2bc416ba | 755 | de_fault (to_close, |
460014f5 | 756 | (void (*) (void)) |
0d06e24b | 757 | target_ignore); |
2bc416ba DJ |
758 | de_fault (to_post_attach, |
759 | (void (*) (int)) | |
0d06e24b | 760 | target_ignore); |
2bc416ba | 761 | de_fault (to_prepare_to_store, |
316f2060 | 762 | (void (*) (struct regcache *)) |
0d06e24b | 763 | noprocess); |
2bc416ba | 764 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
765 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
766 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 767 | nomemory); |
2bc416ba DJ |
768 | de_fault (to_files_info, |
769 | (void (*) (struct target_ops *)) | |
0d06e24b | 770 | target_ignore); |
2bc416ba | 771 | de_fault (to_insert_breakpoint, |
0d06e24b | 772 | memory_insert_breakpoint); |
2bc416ba | 773 | de_fault (to_remove_breakpoint, |
0d06e24b | 774 | memory_remove_breakpoint); |
ccaa32c7 GS |
775 | de_fault (to_can_use_hw_breakpoint, |
776 | (int (*) (int, int, int)) | |
777 | return_zero); | |
778 | de_fault (to_insert_hw_breakpoint, | |
a6d9a66e | 779 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
780 | return_minus_one); |
781 | de_fault (to_remove_hw_breakpoint, | |
a6d9a66e | 782 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
783 | return_minus_one); |
784 | de_fault (to_insert_watchpoint, | |
0cf6dd15 | 785 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
786 | return_minus_one); |
787 | de_fault (to_remove_watchpoint, | |
0cf6dd15 | 788 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
789 | return_minus_one); |
790 | de_fault (to_stopped_by_watchpoint, | |
791 | (int (*) (void)) | |
792 | return_zero); | |
793 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 794 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 795 | return_zero); |
5009afc5 AS |
796 | de_fault (to_watchpoint_addr_within_range, |
797 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
798 | de_fault (to_region_ok_for_hw_watchpoint, |
799 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 TJB |
800 | de_fault (to_can_accel_watchpoint_condition, |
801 | (int (*) (CORE_ADDR, int, int, struct expression *)) | |
802 | return_zero); | |
2bc416ba DJ |
803 | de_fault (to_terminal_init, |
804 | (void (*) (void)) | |
0d06e24b | 805 | target_ignore); |
2bc416ba DJ |
806 | de_fault (to_terminal_inferior, |
807 | (void (*) (void)) | |
0d06e24b | 808 | target_ignore); |
2bc416ba DJ |
809 | de_fault (to_terminal_ours_for_output, |
810 | (void (*) (void)) | |
0d06e24b | 811 | target_ignore); |
2bc416ba DJ |
812 | de_fault (to_terminal_ours, |
813 | (void (*) (void)) | |
0d06e24b | 814 | target_ignore); |
2bc416ba DJ |
815 | de_fault (to_terminal_save_ours, |
816 | (void (*) (void)) | |
a790ad35 | 817 | target_ignore); |
2bc416ba | 818 | de_fault (to_terminal_info, |
0d06e24b | 819 | default_terminal_info); |
2bc416ba DJ |
820 | de_fault (to_load, |
821 | (void (*) (char *, int)) | |
0d06e24b | 822 | tcomplain); |
2bc416ba DJ |
823 | de_fault (to_post_startup_inferior, |
824 | (void (*) (ptid_t)) | |
0d06e24b | 825 | target_ignore); |
2bc416ba | 826 | de_fault (to_insert_fork_catchpoint, |
77b06cd7 TJB |
827 | (int (*) (int)) |
828 | return_one); | |
2bc416ba DJ |
829 | de_fault (to_remove_fork_catchpoint, |
830 | (int (*) (int)) | |
77b06cd7 | 831 | return_one); |
2bc416ba | 832 | de_fault (to_insert_vfork_catchpoint, |
77b06cd7 TJB |
833 | (int (*) (int)) |
834 | return_one); | |
2bc416ba DJ |
835 | de_fault (to_remove_vfork_catchpoint, |
836 | (int (*) (int)) | |
77b06cd7 | 837 | return_one); |
2bc416ba | 838 | de_fault (to_insert_exec_catchpoint, |
77b06cd7 TJB |
839 | (int (*) (int)) |
840 | return_one); | |
2bc416ba DJ |
841 | de_fault (to_remove_exec_catchpoint, |
842 | (int (*) (int)) | |
77b06cd7 | 843 | return_one); |
a96d9b2e SDJ |
844 | de_fault (to_set_syscall_catchpoint, |
845 | (int (*) (int, int, int, int, int *)) | |
77b06cd7 | 846 | return_one); |
2bc416ba DJ |
847 | de_fault (to_has_exited, |
848 | (int (*) (int, int, int *)) | |
0d06e24b | 849 | return_zero); |
2bc416ba | 850 | de_fault (to_can_run, |
0d06e24b | 851 | return_zero); |
2bc416ba DJ |
852 | de_fault (to_extra_thread_info, |
853 | (char *(*) (struct thread_info *)) | |
0d06e24b | 854 | return_zero); |
4694da01 TT |
855 | de_fault (to_thread_name, |
856 | (char *(*) (struct thread_info *)) | |
857 | return_zero); | |
2bc416ba | 858 | de_fault (to_stop, |
94cc34af | 859 | (void (*) (ptid_t)) |
0d06e24b | 860 | target_ignore); |
cf7a04e8 | 861 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
862 | de_fault (to_rcmd, |
863 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 864 | tcomplain); |
2bc416ba DJ |
865 | de_fault (to_pid_to_exec_file, |
866 | (char *(*) (int)) | |
0d06e24b | 867 | return_zero); |
2bc416ba DJ |
868 | de_fault (to_async, |
869 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 870 | tcomplain); |
c2250ad1 UW |
871 | de_fault (to_thread_architecture, |
872 | default_thread_architecture); | |
424163ea | 873 | current_target.to_read_description = NULL; |
0ef643c8 JB |
874 | de_fault (to_get_ada_task_ptid, |
875 | (ptid_t (*) (long, long)) | |
876 | default_get_ada_task_ptid); | |
8a305172 PA |
877 | de_fault (to_supports_multi_process, |
878 | (int (*) (void)) | |
879 | return_zero); | |
d248b706 KY |
880 | de_fault (to_supports_enable_disable_tracepoint, |
881 | (int (*) (void)) | |
882 | return_zero); | |
3065dfb6 SS |
883 | de_fault (to_supports_string_tracing, |
884 | (int (*) (void)) | |
885 | return_zero); | |
35b1e5cc SS |
886 | de_fault (to_trace_init, |
887 | (void (*) (void)) | |
888 | tcomplain); | |
889 | de_fault (to_download_tracepoint, | |
e8ba3115 | 890 | (void (*) (struct bp_location *)) |
35b1e5cc | 891 | tcomplain); |
1e4d1764 YQ |
892 | de_fault (to_can_download_tracepoint, |
893 | (int (*) (void)) | |
894 | return_zero); | |
35b1e5cc SS |
895 | de_fault (to_download_trace_state_variable, |
896 | (void (*) (struct trace_state_variable *)) | |
897 | tcomplain); | |
d248b706 KY |
898 | de_fault (to_enable_tracepoint, |
899 | (void (*) (struct bp_location *)) | |
900 | tcomplain); | |
901 | de_fault (to_disable_tracepoint, | |
902 | (void (*) (struct bp_location *)) | |
903 | tcomplain); | |
35b1e5cc SS |
904 | de_fault (to_trace_set_readonly_regions, |
905 | (void (*) (void)) | |
906 | tcomplain); | |
907 | de_fault (to_trace_start, | |
908 | (void (*) (void)) | |
909 | tcomplain); | |
910 | de_fault (to_get_trace_status, | |
00bf0b85 | 911 | (int (*) (struct trace_status *)) |
35b1e5cc | 912 | return_minus_one); |
f196051f SS |
913 | de_fault (to_get_tracepoint_status, |
914 | (void (*) (struct breakpoint *, struct uploaded_tp *)) | |
915 | tcomplain); | |
35b1e5cc SS |
916 | de_fault (to_trace_stop, |
917 | (void (*) (void)) | |
918 | tcomplain); | |
919 | de_fault (to_trace_find, | |
cc5925ad | 920 | (int (*) (enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) |
4136fdd2 | 921 | return_minus_one); |
35b1e5cc SS |
922 | de_fault (to_get_trace_state_variable_value, |
923 | (int (*) (int, LONGEST *)) | |
924 | return_zero); | |
00bf0b85 | 925 | de_fault (to_save_trace_data, |
011aacb0 | 926 | (int (*) (const char *)) |
00bf0b85 SS |
927 | tcomplain); |
928 | de_fault (to_upload_tracepoints, | |
929 | (int (*) (struct uploaded_tp **)) | |
930 | return_zero); | |
931 | de_fault (to_upload_trace_state_variables, | |
932 | (int (*) (struct uploaded_tsv **)) | |
933 | return_zero); | |
934 | de_fault (to_get_raw_trace_data, | |
935 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
936 | tcomplain); | |
405f8e94 SS |
937 | de_fault (to_get_min_fast_tracepoint_insn_len, |
938 | (int (*) (void)) | |
939 | return_minus_one); | |
35b1e5cc SS |
940 | de_fault (to_set_disconnected_tracing, |
941 | (void (*) (int)) | |
4daf5ac0 SS |
942 | target_ignore); |
943 | de_fault (to_set_circular_trace_buffer, | |
944 | (void (*) (int)) | |
945 | target_ignore); | |
f6f899bf HAQ |
946 | de_fault (to_set_trace_buffer_size, |
947 | (void (*) (LONGEST)) | |
948 | target_ignore); | |
f196051f | 949 | de_fault (to_set_trace_notes, |
ca623f82 | 950 | (int (*) (const char *, const char *, const char *)) |
f196051f | 951 | return_zero); |
711e434b PM |
952 | de_fault (to_get_tib_address, |
953 | (int (*) (ptid_t, CORE_ADDR *)) | |
954 | tcomplain); | |
d914c394 SS |
955 | de_fault (to_set_permissions, |
956 | (void (*) (void)) | |
957 | target_ignore); | |
0fb4aa4b PA |
958 | de_fault (to_static_tracepoint_marker_at, |
959 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
960 | return_zero); | |
961 | de_fault (to_static_tracepoint_markers_by_strid, | |
962 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
963 | tcomplain); | |
b3b9301e PA |
964 | de_fault (to_traceframe_info, |
965 | (struct traceframe_info * (*) (void)) | |
966 | tcomplain); | |
b775012e LM |
967 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
968 | (int (*) (void)) | |
969 | return_zero); | |
d3ce09f5 SS |
970 | de_fault (to_can_run_breakpoint_commands, |
971 | (int (*) (void)) | |
972 | return_zero); | |
d1feda86 YQ |
973 | de_fault (to_use_agent, |
974 | (int (*) (int)) | |
975 | tcomplain); | |
976 | de_fault (to_can_use_agent, | |
977 | (int (*) (void)) | |
978 | return_zero); | |
ced63ec0 GB |
979 | de_fault (to_augmented_libraries_svr4_read, |
980 | (int (*) (void)) | |
981 | return_zero); | |
32231432 PA |
982 | de_fault (to_execution_direction, default_execution_direction); |
983 | ||
c906108c | 984 | #undef de_fault |
c906108c | 985 | |
7998dfc3 AC |
986 | /* Finally, position the target-stack beneath the squashed |
987 | "current_target". That way code looking for a non-inherited | |
988 | target method can quickly and simply find it. */ | |
989 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
990 | |
991 | if (targetdebug) | |
992 | setup_target_debug (); | |
c906108c SS |
993 | } |
994 | ||
995 | /* Push a new target type into the stack of the existing target accessors, | |
996 | possibly superseding some of the existing accessors. | |
997 | ||
c906108c SS |
998 | Rather than allow an empty stack, we always have the dummy target at |
999 | the bottom stratum, so we can call the function vectors without | |
1000 | checking them. */ | |
1001 | ||
b26a4dcb | 1002 | void |
fba45db2 | 1003 | push_target (struct target_ops *t) |
c906108c | 1004 | { |
258b763a | 1005 | struct target_ops **cur; |
c906108c SS |
1006 | |
1007 | /* Check magic number. If wrong, it probably means someone changed | |
1008 | the struct definition, but not all the places that initialize one. */ | |
1009 | if (t->to_magic != OPS_MAGIC) | |
1010 | { | |
c5aa993b JM |
1011 | fprintf_unfiltered (gdb_stderr, |
1012 | "Magic number of %s target struct wrong\n", | |
1013 | t->to_shortname); | |
3e43a32a MS |
1014 | internal_error (__FILE__, __LINE__, |
1015 | _("failed internal consistency check")); | |
c906108c SS |
1016 | } |
1017 | ||
258b763a AC |
1018 | /* Find the proper stratum to install this target in. */ |
1019 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 1020 | { |
258b763a | 1021 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
1022 | break; |
1023 | } | |
1024 | ||
258b763a | 1025 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 1026 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
1027 | targets to CUR, and not just those at this stratum level. */ |
1028 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
1029 | { | |
1030 | /* There's already something at this stratum level. Close it, | |
1031 | and un-hook it from the stack. */ | |
1032 | struct target_ops *tmp = (*cur); | |
5d502164 | 1033 | |
258b763a AC |
1034 | (*cur) = (*cur)->beneath; |
1035 | tmp->beneath = NULL; | |
460014f5 | 1036 | target_close (tmp); |
258b763a | 1037 | } |
c906108c SS |
1038 | |
1039 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
1040 | t->beneath = (*cur); |
1041 | (*cur) = t; | |
c906108c SS |
1042 | |
1043 | update_current_target (); | |
c906108c SS |
1044 | } |
1045 | ||
2bc416ba | 1046 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1047 | Return how many times it was removed (0 or 1). */ |
1048 | ||
1049 | int | |
fba45db2 | 1050 | unpush_target (struct target_ops *t) |
c906108c | 1051 | { |
258b763a AC |
1052 | struct target_ops **cur; |
1053 | struct target_ops *tmp; | |
c906108c | 1054 | |
c8d104ad PA |
1055 | if (t->to_stratum == dummy_stratum) |
1056 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1057 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1058 | |
c906108c | 1059 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1060 | can only occur once in the target stack. */ |
c906108c | 1061 | |
258b763a AC |
1062 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1063 | { | |
1064 | if ((*cur) == t) | |
1065 | break; | |
1066 | } | |
c906108c | 1067 | |
305436e0 PA |
1068 | /* If we don't find target_ops, quit. Only open targets should be |
1069 | closed. */ | |
258b763a | 1070 | if ((*cur) == NULL) |
305436e0 | 1071 | return 0; |
5269965e | 1072 | |
c378eb4e | 1073 | /* Unchain the target. */ |
258b763a AC |
1074 | tmp = (*cur); |
1075 | (*cur) = (*cur)->beneath; | |
1076 | tmp->beneath = NULL; | |
c906108c SS |
1077 | |
1078 | update_current_target (); | |
c906108c | 1079 | |
305436e0 PA |
1080 | /* Finally close the target. Note we do this after unchaining, so |
1081 | any target method calls from within the target_close | |
1082 | implementation don't end up in T anymore. */ | |
460014f5 | 1083 | target_close (t); |
305436e0 | 1084 | |
c906108c SS |
1085 | return 1; |
1086 | } | |
1087 | ||
1088 | void | |
fba45db2 | 1089 | pop_target (void) |
c906108c | 1090 | { |
460014f5 | 1091 | target_close (target_stack); /* Let it clean up. */ |
258b763a | 1092 | if (unpush_target (target_stack) == 1) |
c906108c SS |
1093 | return; |
1094 | ||
c5aa993b JM |
1095 | fprintf_unfiltered (gdb_stderr, |
1096 | "pop_target couldn't find target %s\n", | |
1097 | current_target.to_shortname); | |
5d502164 MS |
1098 | internal_error (__FILE__, __LINE__, |
1099 | _("failed internal consistency check")); | |
c906108c SS |
1100 | } |
1101 | ||
aa76d38d | 1102 | void |
460014f5 | 1103 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1104 | { |
87ab71f0 | 1105 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1106 | { |
460014f5 | 1107 | target_close (target_stack); |
aa76d38d PA |
1108 | if (!unpush_target (target_stack)) |
1109 | { | |
1110 | fprintf_unfiltered (gdb_stderr, | |
1111 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1112 | target_stack->to_shortname); |
aa76d38d PA |
1113 | internal_error (__FILE__, __LINE__, |
1114 | _("failed internal consistency check")); | |
1115 | break; | |
1116 | } | |
1117 | } | |
1118 | } | |
1119 | ||
87ab71f0 | 1120 | void |
460014f5 | 1121 | pop_all_targets (void) |
87ab71f0 | 1122 | { |
460014f5 | 1123 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1124 | } |
1125 | ||
c0edd9ed JK |
1126 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1127 | ||
1128 | int | |
1129 | target_is_pushed (struct target_ops *t) | |
1130 | { | |
1131 | struct target_ops **cur; | |
1132 | ||
1133 | /* Check magic number. If wrong, it probably means someone changed | |
1134 | the struct definition, but not all the places that initialize one. */ | |
1135 | if (t->to_magic != OPS_MAGIC) | |
1136 | { | |
1137 | fprintf_unfiltered (gdb_stderr, | |
1138 | "Magic number of %s target struct wrong\n", | |
1139 | t->to_shortname); | |
3e43a32a MS |
1140 | internal_error (__FILE__, __LINE__, |
1141 | _("failed internal consistency check")); | |
c0edd9ed JK |
1142 | } |
1143 | ||
1144 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1145 | if (*cur == t) | |
1146 | return 1; | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
72f5cf0e | 1151 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1152 | current thread's thread-local storage with offset OFFSET. */ |
1153 | CORE_ADDR | |
1154 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1155 | { | |
1156 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1157 | struct target_ops *target; |
1158 | ||
1159 | for (target = current_target.beneath; | |
1160 | target != NULL; | |
1161 | target = target->beneath) | |
1162 | { | |
1163 | if (target->to_get_thread_local_address != NULL) | |
1164 | break; | |
1165 | } | |
9e35dae4 | 1166 | |
117de6a9 | 1167 | if (target != NULL |
f5656ead | 1168 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1169 | { |
1170 | ptid_t ptid = inferior_ptid; | |
1171 | volatile struct gdb_exception ex; | |
1172 | ||
1173 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1174 | { | |
1175 | CORE_ADDR lm_addr; | |
1176 | ||
1177 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1178 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1179 | objfile); |
1180 | /* If it's 0, throw the appropriate exception. */ | |
1181 | if (lm_addr == 0) | |
1182 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1183 | _("TLS load module not found")); | |
1184 | ||
3e43a32a MS |
1185 | addr = target->to_get_thread_local_address (target, ptid, |
1186 | lm_addr, offset); | |
9e35dae4 DJ |
1187 | } |
1188 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1189 | throw the error to some higher catcher. */ | |
1190 | if (ex.reason < 0) | |
1191 | { | |
1192 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1193 | ||
1194 | switch (ex.error) | |
1195 | { | |
1196 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1197 | error (_("Cannot find thread-local variables " |
1198 | "in this thread library.")); | |
9e35dae4 DJ |
1199 | break; |
1200 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1201 | if (objfile_is_library) | |
1202 | error (_("Cannot find shared library `%s' in dynamic" | |
1203 | " linker's load module list"), objfile->name); | |
1204 | else | |
1205 | error (_("Cannot find executable file `%s' in dynamic" | |
1206 | " linker's load module list"), objfile->name); | |
1207 | break; | |
1208 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1209 | if (objfile_is_library) | |
1210 | error (_("The inferior has not yet allocated storage for" | |
1211 | " thread-local variables in\n" | |
1212 | "the shared library `%s'\n" | |
1213 | "for %s"), | |
1214 | objfile->name, target_pid_to_str (ptid)); | |
1215 | else | |
1216 | error (_("The inferior has not yet allocated storage for" | |
1217 | " thread-local variables in\n" | |
1218 | "the executable `%s'\n" | |
1219 | "for %s"), | |
1220 | objfile->name, target_pid_to_str (ptid)); | |
1221 | break; | |
1222 | case TLS_GENERIC_ERROR: | |
1223 | if (objfile_is_library) | |
1224 | error (_("Cannot find thread-local storage for %s, " | |
1225 | "shared library %s:\n%s"), | |
1226 | target_pid_to_str (ptid), | |
1227 | objfile->name, ex.message); | |
1228 | else | |
1229 | error (_("Cannot find thread-local storage for %s, " | |
1230 | "executable file %s:\n%s"), | |
1231 | target_pid_to_str (ptid), | |
1232 | objfile->name, ex.message); | |
1233 | break; | |
1234 | default: | |
1235 | throw_exception (ex); | |
1236 | break; | |
1237 | } | |
1238 | } | |
1239 | } | |
1240 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1241 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1242 | else | |
1243 | error (_("Cannot find thread-local variables on this target")); | |
1244 | ||
1245 | return addr; | |
1246 | } | |
1247 | ||
c906108c SS |
1248 | #undef MIN |
1249 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1250 | ||
1251 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1252 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1253 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1254 | is responsible for freeing it. Return the number of bytes successfully | |
1255 | read. */ | |
1256 | ||
1257 | int | |
fba45db2 | 1258 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1259 | { |
c2e8b827 | 1260 | int tlen, offset, i; |
1b0ba102 | 1261 | gdb_byte buf[4]; |
c906108c SS |
1262 | int errcode = 0; |
1263 | char *buffer; | |
1264 | int buffer_allocated; | |
1265 | char *bufptr; | |
1266 | unsigned int nbytes_read = 0; | |
1267 | ||
6217bf3e MS |
1268 | gdb_assert (string); |
1269 | ||
c906108c SS |
1270 | /* Small for testing. */ |
1271 | buffer_allocated = 4; | |
1272 | buffer = xmalloc (buffer_allocated); | |
1273 | bufptr = buffer; | |
1274 | ||
c906108c SS |
1275 | while (len > 0) |
1276 | { | |
1277 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1278 | offset = memaddr & 3; | |
1279 | ||
1b0ba102 | 1280 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1281 | if (errcode != 0) |
1282 | { | |
1283 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1284 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1285 | a single byte. */ |
1286 | tlen = 1; | |
1287 | offset = 0; | |
b8eb5af0 | 1288 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1289 | if (errcode != 0) |
1290 | goto done; | |
1291 | } | |
1292 | ||
1293 | if (bufptr - buffer + tlen > buffer_allocated) | |
1294 | { | |
1295 | unsigned int bytes; | |
5d502164 | 1296 | |
c906108c SS |
1297 | bytes = bufptr - buffer; |
1298 | buffer_allocated *= 2; | |
1299 | buffer = xrealloc (buffer, buffer_allocated); | |
1300 | bufptr = buffer + bytes; | |
1301 | } | |
1302 | ||
1303 | for (i = 0; i < tlen; i++) | |
1304 | { | |
1305 | *bufptr++ = buf[i + offset]; | |
1306 | if (buf[i + offset] == '\000') | |
1307 | { | |
1308 | nbytes_read += i + 1; | |
1309 | goto done; | |
1310 | } | |
1311 | } | |
1312 | ||
1313 | memaddr += tlen; | |
1314 | len -= tlen; | |
1315 | nbytes_read += tlen; | |
1316 | } | |
c5aa993b | 1317 | done: |
6217bf3e | 1318 | *string = buffer; |
c906108c SS |
1319 | if (errnop != NULL) |
1320 | *errnop = errcode; | |
c906108c SS |
1321 | return nbytes_read; |
1322 | } | |
1323 | ||
07b82ea5 PA |
1324 | struct target_section_table * |
1325 | target_get_section_table (struct target_ops *target) | |
1326 | { | |
1327 | struct target_ops *t; | |
1328 | ||
1329 | if (targetdebug) | |
1330 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1331 | ||
1332 | for (t = target; t != NULL; t = t->beneath) | |
1333 | if (t->to_get_section_table != NULL) | |
1334 | return (*t->to_get_section_table) (t); | |
1335 | ||
1336 | return NULL; | |
1337 | } | |
1338 | ||
8db32d44 | 1339 | /* Find a section containing ADDR. */ |
07b82ea5 | 1340 | |
0542c86d | 1341 | struct target_section * |
8db32d44 AC |
1342 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1343 | { | |
07b82ea5 | 1344 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1345 | struct target_section *secp; |
07b82ea5 PA |
1346 | |
1347 | if (table == NULL) | |
1348 | return NULL; | |
1349 | ||
1350 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1351 | { |
1352 | if (addr >= secp->addr && addr < secp->endaddr) | |
1353 | return secp; | |
1354 | } | |
1355 | return NULL; | |
1356 | } | |
1357 | ||
e6e4e701 PA |
1358 | /* Read memory from the live target, even if currently inspecting a |
1359 | traceframe. The return is the same as that of target_read. */ | |
1360 | ||
1361 | static LONGEST | |
1362 | target_read_live_memory (enum target_object object, | |
1363 | ULONGEST memaddr, gdb_byte *myaddr, LONGEST len) | |
1364 | { | |
1365 | int ret; | |
1366 | struct cleanup *cleanup; | |
1367 | ||
1368 | /* Switch momentarily out of tfind mode so to access live memory. | |
1369 | Note that this must not clear global state, such as the frame | |
1370 | cache, which must still remain valid for the previous traceframe. | |
1371 | We may be _building_ the frame cache at this point. */ | |
1372 | cleanup = make_cleanup_restore_traceframe_number (); | |
1373 | set_traceframe_number (-1); | |
1374 | ||
1375 | ret = target_read (current_target.beneath, object, NULL, | |
1376 | myaddr, memaddr, len); | |
1377 | ||
1378 | do_cleanups (cleanup); | |
1379 | return ret; | |
1380 | } | |
1381 | ||
1382 | /* Using the set of read-only target sections of OPS, read live | |
1383 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1384 | top-most target again. |
1385 | ||
1386 | For interface/parameters/return description see target.h, | |
1387 | to_xfer_partial. */ | |
e6e4e701 PA |
1388 | |
1389 | static LONGEST | |
1390 | memory_xfer_live_readonly_partial (struct target_ops *ops, | |
1391 | enum target_object object, | |
1392 | gdb_byte *readbuf, ULONGEST memaddr, | |
1393 | LONGEST len) | |
1394 | { | |
1395 | struct target_section *secp; | |
1396 | struct target_section_table *table; | |
1397 | ||
1398 | secp = target_section_by_addr (ops, memaddr); | |
1399 | if (secp != NULL | |
1400 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1401 | & SEC_READONLY)) | |
1402 | { | |
1403 | struct target_section *p; | |
1404 | ULONGEST memend = memaddr + len; | |
1405 | ||
1406 | table = target_get_section_table (ops); | |
1407 | ||
1408 | for (p = table->sections; p < table->sections_end; p++) | |
1409 | { | |
1410 | if (memaddr >= p->addr) | |
1411 | { | |
1412 | if (memend <= p->endaddr) | |
1413 | { | |
1414 | /* Entire transfer is within this section. */ | |
1415 | return target_read_live_memory (object, memaddr, | |
1416 | readbuf, len); | |
1417 | } | |
1418 | else if (memaddr >= p->endaddr) | |
1419 | { | |
1420 | /* This section ends before the transfer starts. */ | |
1421 | continue; | |
1422 | } | |
1423 | else | |
1424 | { | |
1425 | /* This section overlaps the transfer. Just do half. */ | |
1426 | len = p->endaddr - memaddr; | |
1427 | return target_read_live_memory (object, memaddr, | |
1428 | readbuf, len); | |
1429 | } | |
1430 | } | |
1431 | } | |
1432 | } | |
1433 | ||
1434 | return 0; | |
1435 | } | |
1436 | ||
7f79c47e DE |
1437 | /* Perform a partial memory transfer. |
1438 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 DJ |
1439 | |
1440 | static LONGEST | |
f0ba3972 PA |
1441 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
1442 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1443 | LONGEST len) | |
0779438d | 1444 | { |
cf7a04e8 DJ |
1445 | LONGEST res; |
1446 | int reg_len; | |
1447 | struct mem_region *region; | |
4e5d721f | 1448 | struct inferior *inf; |
cf7a04e8 | 1449 | |
07b82ea5 PA |
1450 | /* For accesses to unmapped overlay sections, read directly from |
1451 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1452 | if (readbuf != NULL && overlay_debugging) | |
1453 | { | |
1454 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1455 | |
07b82ea5 PA |
1456 | if (pc_in_unmapped_range (memaddr, section)) |
1457 | { | |
1458 | struct target_section_table *table | |
1459 | = target_get_section_table (ops); | |
1460 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1461 | |
07b82ea5 PA |
1462 | memaddr = overlay_mapped_address (memaddr, section); |
1463 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1464 | memaddr, len, | |
1465 | table->sections, | |
1466 | table->sections_end, | |
1467 | section_name); | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1472 | if (readbuf != NULL && trust_readonly) |
1473 | { | |
0542c86d | 1474 | struct target_section *secp; |
07b82ea5 | 1475 | struct target_section_table *table; |
cf7a04e8 DJ |
1476 | |
1477 | secp = target_section_by_addr (ops, memaddr); | |
1478 | if (secp != NULL | |
1479 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1480 | & SEC_READONLY)) | |
07b82ea5 PA |
1481 | { |
1482 | table = target_get_section_table (ops); | |
1483 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1484 | memaddr, len, | |
1485 | table->sections, | |
1486 | table->sections_end, | |
1487 | NULL); | |
1488 | } | |
98646950 UW |
1489 | } |
1490 | ||
e6e4e701 PA |
1491 | /* If reading unavailable memory in the context of traceframes, and |
1492 | this address falls within a read-only section, fallback to | |
1493 | reading from live memory. */ | |
1494 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1495 | { | |
1496 | VEC(mem_range_s) *available; | |
1497 | ||
1498 | /* If we fail to get the set of available memory, then the | |
1499 | target does not support querying traceframe info, and so we | |
1500 | attempt reading from the traceframe anyway (assuming the | |
1501 | target implements the old QTro packet then). */ | |
1502 | if (traceframe_available_memory (&available, memaddr, len)) | |
1503 | { | |
1504 | struct cleanup *old_chain; | |
1505 | ||
1506 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1507 | ||
1508 | if (VEC_empty (mem_range_s, available) | |
1509 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1510 | { | |
1511 | /* Don't read into the traceframe's available | |
1512 | memory. */ | |
1513 | if (!VEC_empty (mem_range_s, available)) | |
1514 | { | |
1515 | LONGEST oldlen = len; | |
1516 | ||
1517 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1518 | gdb_assert (len <= oldlen); | |
1519 | } | |
1520 | ||
1521 | do_cleanups (old_chain); | |
1522 | ||
1523 | /* This goes through the topmost target again. */ | |
1524 | res = memory_xfer_live_readonly_partial (ops, object, | |
1525 | readbuf, memaddr, len); | |
1526 | if (res > 0) | |
1527 | return res; | |
1528 | ||
1529 | /* No use trying further, we know some memory starting | |
1530 | at MEMADDR isn't available. */ | |
1531 | return -1; | |
1532 | } | |
1533 | ||
1534 | /* Don't try to read more than how much is available, in | |
1535 | case the target implements the deprecated QTro packet to | |
1536 | cater for older GDBs (the target's knowledge of read-only | |
1537 | sections may be outdated by now). */ | |
1538 | len = VEC_index (mem_range_s, available, 0)->length; | |
1539 | ||
1540 | do_cleanups (old_chain); | |
1541 | } | |
1542 | } | |
1543 | ||
cf7a04e8 DJ |
1544 | /* Try GDB's internal data cache. */ |
1545 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1546 | /* region->hi == 0 means there's no upper bound. */ |
1547 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1548 | reg_len = len; |
1549 | else | |
1550 | reg_len = region->hi - memaddr; | |
1551 | ||
1552 | switch (region->attrib.mode) | |
1553 | { | |
1554 | case MEM_RO: | |
1555 | if (writebuf != NULL) | |
1556 | return -1; | |
1557 | break; | |
1558 | ||
1559 | case MEM_WO: | |
1560 | if (readbuf != NULL) | |
1561 | return -1; | |
1562 | break; | |
a76d924d DJ |
1563 | |
1564 | case MEM_FLASH: | |
1565 | /* We only support writing to flash during "load" for now. */ | |
1566 | if (writebuf != NULL) | |
1567 | error (_("Writing to flash memory forbidden in this context")); | |
1568 | break; | |
4b5752d0 VP |
1569 | |
1570 | case MEM_NONE: | |
1571 | return -1; | |
cf7a04e8 DJ |
1572 | } |
1573 | ||
6c95b8df PA |
1574 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1575 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1576 | else | |
1577 | inf = NULL; | |
4e5d721f DE |
1578 | |
1579 | if (inf != NULL | |
2f4d8875 PA |
1580 | /* The dcache reads whole cache lines; that doesn't play well |
1581 | with reading from a trace buffer, because reading outside of | |
1582 | the collected memory range fails. */ | |
1583 | && get_traceframe_number () == -1 | |
4e5d721f DE |
1584 | && (region->attrib.cache |
1585 | || (stack_cache_enabled_p && object == TARGET_OBJECT_STACK_MEMORY))) | |
cf7a04e8 | 1586 | { |
cf7a04e8 | 1587 | if (readbuf != NULL) |
25f122dc | 1588 | res = dcache_xfer_memory (ops, target_dcache, memaddr, readbuf, |
cf7a04e8 DJ |
1589 | reg_len, 0); |
1590 | else | |
1591 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1592 | correctness dcache_xfer_memory should take readbuf and | |
1593 | writebuf. */ | |
25f122dc | 1594 | res = dcache_xfer_memory (ops, target_dcache, memaddr, |
cf7a04e8 DJ |
1595 | (void *) writebuf, |
1596 | reg_len, 1); | |
1597 | if (res <= 0) | |
1598 | return -1; | |
1599 | else | |
f0ba3972 | 1600 | return res; |
cf7a04e8 DJ |
1601 | } |
1602 | ||
1603 | /* If none of those methods found the memory we wanted, fall back | |
1604 | to a target partial transfer. Normally a single call to | |
1605 | to_xfer_partial is enough; if it doesn't recognize an object | |
1606 | it will call the to_xfer_partial of the next target down. | |
1607 | But for memory this won't do. Memory is the only target | |
1608 | object which can be read from more than one valid target. | |
1609 | A core file, for instance, could have some of memory but | |
1610 | delegate other bits to the target below it. So, we must | |
1611 | manually try all targets. */ | |
1612 | ||
1613 | do | |
1614 | { | |
1615 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1616 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1617 | if (res > 0) |
8defab1a | 1618 | break; |
cf7a04e8 | 1619 | |
5ad3a4ca DJ |
1620 | /* We want to continue past core files to executables, but not |
1621 | past a running target's memory. */ | |
c35b1492 | 1622 | if (ops->to_has_all_memory (ops)) |
8defab1a | 1623 | break; |
5ad3a4ca | 1624 | |
cf7a04e8 DJ |
1625 | ops = ops->beneath; |
1626 | } | |
1627 | while (ops != NULL); | |
1628 | ||
41dcd03f DE |
1629 | /* Make sure the cache gets updated no matter what - if we are writing |
1630 | to the stack. Even if this write is not tagged as such, we still need | |
1631 | to update the cache. */ | |
1632 | ||
1633 | if (res > 0 | |
1634 | && inf != NULL | |
1635 | && writebuf != NULL | |
1636 | && !region->attrib.cache | |
1637 | && stack_cache_enabled_p | |
1638 | && object != TARGET_OBJECT_STACK_MEMORY) | |
1639 | { | |
7d4f32d3 | 1640 | dcache_update (target_dcache, memaddr, (void *) writebuf, res); |
41dcd03f DE |
1641 | } |
1642 | ||
cf7a04e8 DJ |
1643 | /* If we still haven't got anything, return the last error. We |
1644 | give up. */ | |
1645 | return res; | |
0779438d AC |
1646 | } |
1647 | ||
f0ba3972 PA |
1648 | /* Perform a partial memory transfer. For docs see target.h, |
1649 | to_xfer_partial. */ | |
1650 | ||
1651 | static LONGEST | |
1652 | memory_xfer_partial (struct target_ops *ops, enum target_object object, | |
1653 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1654 | LONGEST len) | |
1655 | { | |
1656 | int res; | |
1657 | ||
1658 | /* Zero length requests are ok and require no work. */ | |
1659 | if (len == 0) | |
1660 | return 0; | |
1661 | ||
1662 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1663 | breakpoint insns, thus hiding out from higher layers whether | |
1664 | there are software breakpoints inserted in the code stream. */ | |
1665 | if (readbuf != NULL) | |
1666 | { | |
1667 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len); | |
1668 | ||
1669 | if (res > 0 && !show_memory_breakpoints) | |
1670 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); | |
1671 | } | |
1672 | else | |
1673 | { | |
1674 | void *buf; | |
1675 | struct cleanup *old_chain; | |
1676 | ||
1677 | buf = xmalloc (len); | |
1678 | old_chain = make_cleanup (xfree, buf); | |
1679 | memcpy (buf, writebuf, len); | |
1680 | ||
1681 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
1682 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len); | |
1683 | ||
1684 | do_cleanups (old_chain); | |
1685 | } | |
1686 | ||
1687 | return res; | |
1688 | } | |
1689 | ||
8defab1a DJ |
1690 | static void |
1691 | restore_show_memory_breakpoints (void *arg) | |
1692 | { | |
1693 | show_memory_breakpoints = (uintptr_t) arg; | |
1694 | } | |
1695 | ||
1696 | struct cleanup * | |
1697 | make_show_memory_breakpoints_cleanup (int show) | |
1698 | { | |
1699 | int current = show_memory_breakpoints; | |
8defab1a | 1700 | |
5d502164 | 1701 | show_memory_breakpoints = show; |
8defab1a DJ |
1702 | return make_cleanup (restore_show_memory_breakpoints, |
1703 | (void *) (uintptr_t) current); | |
1704 | } | |
1705 | ||
7f79c47e DE |
1706 | /* For docs see target.h, to_xfer_partial. */ |
1707 | ||
27394598 AC |
1708 | static LONGEST |
1709 | target_xfer_partial (struct target_ops *ops, | |
1710 | enum target_object object, const char *annex, | |
1711 | void *readbuf, const void *writebuf, | |
1712 | ULONGEST offset, LONGEST len) | |
1713 | { | |
1714 | LONGEST retval; | |
1715 | ||
1716 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1717 | |
d914c394 SS |
1718 | if (writebuf && !may_write_memory) |
1719 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1720 | core_addr_to_string_nz (offset), plongest (len)); | |
1721 | ||
cf7a04e8 DJ |
1722 | /* If this is a memory transfer, let the memory-specific code |
1723 | have a look at it instead. Memory transfers are more | |
1724 | complicated. */ | |
4e5d721f DE |
1725 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY) |
1726 | retval = memory_xfer_partial (ops, object, readbuf, | |
1727 | writebuf, offset, len); | |
cf7a04e8 DJ |
1728 | else |
1729 | { | |
1730 | enum target_object raw_object = object; | |
1731 | ||
1732 | /* If this is a raw memory transfer, request the normal | |
1733 | memory object from other layers. */ | |
1734 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1735 | raw_object = TARGET_OBJECT_MEMORY; | |
1736 | ||
1737 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1738 | writebuf, offset, len); | |
1739 | } | |
1740 | ||
27394598 AC |
1741 | if (targetdebug) |
1742 | { | |
1743 | const unsigned char *myaddr = NULL; | |
1744 | ||
1745 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
1746 | "%s:target_xfer_partial " |
1747 | "(%d, %s, %s, %s, %s, %s) = %s", | |
27394598 AC |
1748 | ops->to_shortname, |
1749 | (int) object, | |
1750 | (annex ? annex : "(null)"), | |
53b71562 JB |
1751 | host_address_to_string (readbuf), |
1752 | host_address_to_string (writebuf), | |
0b1553bc UW |
1753 | core_addr_to_string_nz (offset), |
1754 | plongest (len), plongest (retval)); | |
27394598 AC |
1755 | |
1756 | if (readbuf) | |
1757 | myaddr = readbuf; | |
1758 | if (writebuf) | |
1759 | myaddr = writebuf; | |
1760 | if (retval > 0 && myaddr != NULL) | |
1761 | { | |
1762 | int i; | |
2bc416ba | 1763 | |
27394598 AC |
1764 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1765 | for (i = 0; i < retval; i++) | |
1766 | { | |
53b71562 | 1767 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1768 | { |
1769 | if (targetdebug < 2 && i > 0) | |
1770 | { | |
1771 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1772 | break; | |
1773 | } | |
1774 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1775 | } | |
2bc416ba | 1776 | |
27394598 AC |
1777 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1778 | } | |
1779 | } | |
2bc416ba | 1780 | |
27394598 AC |
1781 | fputc_unfiltered ('\n', gdb_stdlog); |
1782 | } | |
1783 | return retval; | |
1784 | } | |
1785 | ||
c906108c SS |
1786 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1787 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1788 | if any error occurs. | |
1789 | ||
1790 | If an error occurs, no guarantee is made about the contents of the data at | |
1791 | MYADDR. In particular, the caller should not depend upon partial reads | |
1792 | filling the buffer with good data. There is no way for the caller to know | |
1793 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1794 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1795 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1796 | |
1797 | int | |
1b162304 | 1798 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1799 | { |
c35b1492 PA |
1800 | /* Dispatch to the topmost target, not the flattened current_target. |
1801 | Memory accesses check target->to_has_(all_)memory, and the | |
1802 | flattened target doesn't inherit those. */ | |
1803 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1804 | myaddr, memaddr, len) == len) |
1805 | return 0; | |
0779438d | 1806 | else |
cf7a04e8 | 1807 | return EIO; |
c906108c SS |
1808 | } |
1809 | ||
4e5d721f DE |
1810 | /* Like target_read_memory, but specify explicitly that this is a read from |
1811 | the target's stack. This may trigger different cache behavior. */ | |
1812 | ||
1813 | int | |
45aa4659 | 1814 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f DE |
1815 | { |
1816 | /* Dispatch to the topmost target, not the flattened current_target. | |
1817 | Memory accesses check target->to_has_(all_)memory, and the | |
1818 | flattened target doesn't inherit those. */ | |
1819 | ||
1820 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, | |
1821 | myaddr, memaddr, len) == len) | |
1822 | return 0; | |
1823 | else | |
1824 | return EIO; | |
1825 | } | |
1826 | ||
7f79c47e DE |
1827 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
1828 | Returns either 0 for success or an errno value if any error occurs. | |
1829 | If an error occurs, no guarantee is made about how much data got written. | |
1830 | Callers that can deal with partial writes should call target_write. */ | |
1831 | ||
c906108c | 1832 | int |
45aa4659 | 1833 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1834 | { |
c35b1492 PA |
1835 | /* Dispatch to the topmost target, not the flattened current_target. |
1836 | Memory accesses check target->to_has_(all_)memory, and the | |
1837 | flattened target doesn't inherit those. */ | |
1838 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1839 | myaddr, memaddr, len) == len) |
1840 | return 0; | |
0779438d | 1841 | else |
cf7a04e8 | 1842 | return EIO; |
c906108c | 1843 | } |
c5aa993b | 1844 | |
f0ba3972 PA |
1845 | /* Write LEN bytes from MYADDR to target raw memory at address |
1846 | MEMADDR. Returns either 0 for success or an errno value if any | |
1847 | error occurs. If an error occurs, no guarantee is made about how | |
1848 | much data got written. Callers that can deal with partial writes | |
1849 | should call target_write. */ | |
1850 | ||
1851 | int | |
45aa4659 | 1852 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 PA |
1853 | { |
1854 | /* Dispatch to the topmost target, not the flattened current_target. | |
1855 | Memory accesses check target->to_has_(all_)memory, and the | |
1856 | flattened target doesn't inherit those. */ | |
1857 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1858 | myaddr, memaddr, len) == len) | |
1859 | return 0; | |
1860 | else | |
1861 | return EIO; | |
1862 | } | |
1863 | ||
fd79ecee DJ |
1864 | /* Fetch the target's memory map. */ |
1865 | ||
1866 | VEC(mem_region_s) * | |
1867 | target_memory_map (void) | |
1868 | { | |
1869 | VEC(mem_region_s) *result; | |
1870 | struct mem_region *last_one, *this_one; | |
1871 | int ix; | |
1872 | struct target_ops *t; | |
1873 | ||
1874 | if (targetdebug) | |
1875 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1876 | ||
1877 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1878 | if (t->to_memory_map != NULL) | |
1879 | break; | |
1880 | ||
1881 | if (t == NULL) | |
1882 | return NULL; | |
1883 | ||
1884 | result = t->to_memory_map (t); | |
1885 | if (result == NULL) | |
1886 | return NULL; | |
1887 | ||
1888 | qsort (VEC_address (mem_region_s, result), | |
1889 | VEC_length (mem_region_s, result), | |
1890 | sizeof (struct mem_region), mem_region_cmp); | |
1891 | ||
1892 | /* Check that regions do not overlap. Simultaneously assign | |
1893 | a numbering for the "mem" commands to use to refer to | |
1894 | each region. */ | |
1895 | last_one = NULL; | |
1896 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1897 | { | |
1898 | this_one->number = ix; | |
1899 | ||
1900 | if (last_one && last_one->hi > this_one->lo) | |
1901 | { | |
1902 | warning (_("Overlapping regions in memory map: ignoring")); | |
1903 | VEC_free (mem_region_s, result); | |
1904 | return NULL; | |
1905 | } | |
1906 | last_one = this_one; | |
1907 | } | |
1908 | ||
1909 | return result; | |
1910 | } | |
1911 | ||
a76d924d DJ |
1912 | void |
1913 | target_flash_erase (ULONGEST address, LONGEST length) | |
1914 | { | |
1915 | struct target_ops *t; | |
1916 | ||
1917 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1918 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1919 | { |
1920 | if (targetdebug) | |
1921 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1922 | hex_string (address), phex (length, 0)); | |
1923 | t->to_flash_erase (t, address, length); | |
1924 | return; | |
1925 | } | |
a76d924d DJ |
1926 | |
1927 | tcomplain (); | |
1928 | } | |
1929 | ||
1930 | void | |
1931 | target_flash_done (void) | |
1932 | { | |
1933 | struct target_ops *t; | |
1934 | ||
1935 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1936 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1937 | { |
1938 | if (targetdebug) | |
1939 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1940 | t->to_flash_done (t); | |
1941 | return; | |
1942 | } | |
a76d924d DJ |
1943 | |
1944 | tcomplain (); | |
1945 | } | |
1946 | ||
920d2a44 AC |
1947 | static void |
1948 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1949 | struct cmd_list_element *c, const char *value) | |
1950 | { | |
3e43a32a MS |
1951 | fprintf_filtered (file, |
1952 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1953 | value); |
1954 | } | |
3a11626d | 1955 | |
1e3ff5ad AC |
1956 | /* More generic transfers. */ |
1957 | ||
0088c768 | 1958 | static LONGEST |
8aa91c1e | 1959 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1960 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1961 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1962 | { |
1963 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1964 | && ops->deprecated_xfer_memory != NULL) |
1965 | /* If available, fall back to the target's | |
1966 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1967 | { |
4b8a223f | 1968 | int xfered = -1; |
5d502164 | 1969 | |
0088c768 | 1970 | errno = 0; |
4b8a223f AC |
1971 | if (writebuf != NULL) |
1972 | { | |
1973 | void *buffer = xmalloc (len); | |
1974 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1975 | |
4b8a223f | 1976 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1977 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1978 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1979 | do_cleanups (cleanup); |
1980 | } | |
1981 | if (readbuf != NULL) | |
244e85c8 MS |
1982 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1983 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1984 | if (xfered > 0) |
1985 | return xfered; | |
1986 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1987 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1988 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1989 | return 0; |
1990 | else | |
1991 | return -1; | |
1992 | } | |
1993 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1994 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1995 | readbuf, writebuf, offset, len); | |
1996 | else | |
1997 | return -1; | |
1998 | } | |
1999 | ||
2000 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
2001 | it does not need to handle memory specially; it just passes all | |
2002 | requests down the stack. */ | |
2003 | ||
2004 | static LONGEST | |
2005 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
2006 | const char *annex, gdb_byte *readbuf, | |
2007 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
2008 | { | |
2009 | if (ops->beneath != NULL) | |
2010 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2011 | readbuf, writebuf, offset, len); | |
0088c768 AC |
2012 | else |
2013 | return -1; | |
2014 | } | |
2015 | ||
7f79c47e | 2016 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2017 | |
13547ab6 | 2018 | static LONGEST |
1e3ff5ad AC |
2019 | target_read_partial (struct target_ops *ops, |
2020 | enum target_object object, | |
1b0ba102 | 2021 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2022 | ULONGEST offset, LONGEST len) |
2023 | { | |
27394598 | 2024 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
2025 | } |
2026 | ||
13547ab6 | 2027 | static LONGEST |
1e3ff5ad AC |
2028 | target_write_partial (struct target_ops *ops, |
2029 | enum target_object object, | |
1b0ba102 | 2030 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
2031 | ULONGEST offset, LONGEST len) |
2032 | { | |
27394598 | 2033 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
2034 | } |
2035 | ||
2036 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2037 | |
2038 | /* For docs on target_read see target.h. */ | |
2039 | ||
1e3ff5ad AC |
2040 | LONGEST |
2041 | target_read (struct target_ops *ops, | |
2042 | enum target_object object, | |
1b0ba102 | 2043 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2044 | ULONGEST offset, LONGEST len) |
2045 | { | |
2046 | LONGEST xfered = 0; | |
5d502164 | 2047 | |
1e3ff5ad AC |
2048 | while (xfered < len) |
2049 | { | |
0088c768 | 2050 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 2051 | (gdb_byte *) buf + xfered, |
0088c768 | 2052 | offset + xfered, len - xfered); |
5d502164 | 2053 | |
1e3ff5ad | 2054 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
2055 | if (xfer == 0) |
2056 | return xfered; | |
2057 | if (xfer < 0) | |
0088c768 | 2058 | return -1; |
1e3ff5ad AC |
2059 | xfered += xfer; |
2060 | QUIT; | |
2061 | } | |
2062 | return len; | |
2063 | } | |
2064 | ||
f1a507a1 JB |
2065 | /* Assuming that the entire [begin, end) range of memory cannot be |
2066 | read, try to read whatever subrange is possible to read. | |
2067 | ||
2068 | The function returns, in RESULT, either zero or one memory block. | |
2069 | If there's a readable subrange at the beginning, it is completely | |
2070 | read and returned. Any further readable subrange will not be read. | |
2071 | Otherwise, if there's a readable subrange at the end, it will be | |
2072 | completely read and returned. Any readable subranges before it | |
2073 | (obviously, not starting at the beginning), will be ignored. In | |
2074 | other cases -- either no readable subrange, or readable subrange(s) | |
2075 | that is neither at the beginning, or end, nothing is returned. | |
2076 | ||
2077 | The purpose of this function is to handle a read across a boundary | |
2078 | of accessible memory in a case when memory map is not available. | |
2079 | The above restrictions are fine for this case, but will give | |
2080 | incorrect results if the memory is 'patchy'. However, supporting | |
2081 | 'patchy' memory would require trying to read every single byte, | |
2082 | and it seems unacceptable solution. Explicit memory map is | |
2083 | recommended for this case -- and target_read_memory_robust will | |
2084 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2085 | |
2086 | static void | |
3e43a32a MS |
2087 | read_whatever_is_readable (struct target_ops *ops, |
2088 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2089 | VEC(memory_read_result_s) **result) |
d5086790 | 2090 | { |
f1a507a1 | 2091 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2092 | ULONGEST current_begin = begin; |
2093 | ULONGEST current_end = end; | |
2094 | int forward; | |
2095 | memory_read_result_s r; | |
2096 | ||
2097 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2098 | if (end - begin <= 1) | |
13b3fd9b MS |
2099 | { |
2100 | xfree (buf); | |
2101 | return; | |
2102 | } | |
8dedea02 VP |
2103 | |
2104 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2105 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2106 | at the boundary of accessible region. */ |
2107 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2108 | buf, begin, 1) == 1) | |
2109 | { | |
2110 | forward = 1; | |
2111 | ++current_begin; | |
2112 | } | |
2113 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2114 | buf + (end-begin) - 1, end - 1, 1) == 1) | |
2115 | { | |
2116 | forward = 0; | |
2117 | --current_end; | |
2118 | } | |
2119 | else | |
2120 | { | |
13b3fd9b | 2121 | xfree (buf); |
8dedea02 VP |
2122 | return; |
2123 | } | |
2124 | ||
2125 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2126 | found to be not readable as a whole. | |
2127 | ||
2128 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2129 | so there's no point trying further. */ | |
2130 | while (current_end - current_begin > 1) | |
2131 | { | |
2132 | ULONGEST first_half_begin, first_half_end; | |
2133 | ULONGEST second_half_begin, second_half_end; | |
2134 | LONGEST xfer; | |
8dedea02 | 2135 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2136 | |
8dedea02 VP |
2137 | if (forward) |
2138 | { | |
2139 | first_half_begin = current_begin; | |
2140 | first_half_end = middle; | |
2141 | second_half_begin = middle; | |
2142 | second_half_end = current_end; | |
2143 | } | |
2144 | else | |
2145 | { | |
2146 | first_half_begin = middle; | |
2147 | first_half_end = current_end; | |
2148 | second_half_begin = current_begin; | |
2149 | second_half_end = middle; | |
2150 | } | |
2151 | ||
2152 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2153 | buf + (first_half_begin - begin), | |
2154 | first_half_begin, | |
2155 | first_half_end - first_half_begin); | |
2156 | ||
2157 | if (xfer == first_half_end - first_half_begin) | |
2158 | { | |
c378eb4e | 2159 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2160 | other half. */ |
8dedea02 VP |
2161 | current_begin = second_half_begin; |
2162 | current_end = second_half_end; | |
2163 | } | |
2164 | else | |
2165 | { | |
c378eb4e MS |
2166 | /* This half is not readable. Because we've tried one byte, we |
2167 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2168 | iteration to divide again and try to read. |
2169 | ||
2170 | We don't handle the other half, because this function only tries | |
2171 | to read a single readable subrange. */ | |
2172 | current_begin = first_half_begin; | |
2173 | current_end = first_half_end; | |
2174 | } | |
2175 | } | |
2176 | ||
2177 | if (forward) | |
2178 | { | |
2179 | /* The [begin, current_begin) range has been read. */ | |
2180 | r.begin = begin; | |
2181 | r.end = current_begin; | |
2182 | r.data = buf; | |
2183 | } | |
2184 | else | |
2185 | { | |
2186 | /* The [current_end, end) range has been read. */ | |
2187 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2188 | |
8dedea02 VP |
2189 | r.data = xmalloc (rlen); |
2190 | memcpy (r.data, buf + current_end - begin, rlen); | |
2191 | r.begin = current_end; | |
2192 | r.end = end; | |
2193 | xfree (buf); | |
2194 | } | |
2195 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2196 | } | |
2197 | ||
2198 | void | |
2199 | free_memory_read_result_vector (void *x) | |
2200 | { | |
2201 | VEC(memory_read_result_s) *v = x; | |
2202 | memory_read_result_s *current; | |
2203 | int ix; | |
2204 | ||
2205 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2206 | { | |
2207 | xfree (current->data); | |
2208 | } | |
2209 | VEC_free (memory_read_result_s, v); | |
2210 | } | |
2211 | ||
2212 | VEC(memory_read_result_s) * | |
2213 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2214 | { | |
2215 | VEC(memory_read_result_s) *result = 0; | |
2216 | ||
2217 | LONGEST xfered = 0; | |
d5086790 VP |
2218 | while (xfered < len) |
2219 | { | |
8dedea02 VP |
2220 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2221 | LONGEST rlen; | |
5d502164 | 2222 | |
8dedea02 VP |
2223 | /* If there is no explicit region, a fake one should be created. */ |
2224 | gdb_assert (region); | |
2225 | ||
2226 | if (region->hi == 0) | |
2227 | rlen = len - xfered; | |
2228 | else | |
2229 | rlen = region->hi - offset; | |
2230 | ||
2231 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2232 | { |
c378eb4e | 2233 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2234 | if the region is explicitly marked inaccessible, or |
2235 | 'inaccessible-by-default' is in effect. */ | |
2236 | xfered += rlen; | |
2237 | } | |
2238 | else | |
2239 | { | |
2240 | LONGEST to_read = min (len - xfered, rlen); | |
2241 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2242 | ||
2243 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2244 | (gdb_byte *) buffer, | |
2245 | offset + xfered, to_read); | |
2246 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2247 | if (xfer <= 0) |
d5086790 | 2248 | { |
c378eb4e | 2249 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2250 | some subrange. */ |
2251 | xfree (buffer); | |
3e43a32a MS |
2252 | read_whatever_is_readable (ops, offset + xfered, |
2253 | offset + xfered + to_read, &result); | |
8dedea02 | 2254 | xfered += to_read; |
d5086790 | 2255 | } |
8dedea02 VP |
2256 | else |
2257 | { | |
2258 | struct memory_read_result r; | |
2259 | r.data = buffer; | |
2260 | r.begin = offset + xfered; | |
2261 | r.end = r.begin + xfer; | |
2262 | VEC_safe_push (memory_read_result_s, result, &r); | |
2263 | xfered += xfer; | |
2264 | } | |
2265 | QUIT; | |
d5086790 | 2266 | } |
d5086790 | 2267 | } |
8dedea02 | 2268 | return result; |
d5086790 VP |
2269 | } |
2270 | ||
8dedea02 | 2271 | |
cf7a04e8 DJ |
2272 | /* An alternative to target_write with progress callbacks. */ |
2273 | ||
1e3ff5ad | 2274 | LONGEST |
cf7a04e8 DJ |
2275 | target_write_with_progress (struct target_ops *ops, |
2276 | enum target_object object, | |
2277 | const char *annex, const gdb_byte *buf, | |
2278 | ULONGEST offset, LONGEST len, | |
2279 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2280 | { |
2281 | LONGEST xfered = 0; | |
a76d924d DJ |
2282 | |
2283 | /* Give the progress callback a chance to set up. */ | |
2284 | if (progress) | |
2285 | (*progress) (0, baton); | |
2286 | ||
1e3ff5ad AC |
2287 | while (xfered < len) |
2288 | { | |
2289 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 2290 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 2291 | offset + xfered, len - xfered); |
cf7a04e8 | 2292 | |
13547ab6 DJ |
2293 | if (xfer == 0) |
2294 | return xfered; | |
2295 | if (xfer < 0) | |
0088c768 | 2296 | return -1; |
cf7a04e8 DJ |
2297 | |
2298 | if (progress) | |
2299 | (*progress) (xfer, baton); | |
2300 | ||
1e3ff5ad AC |
2301 | xfered += xfer; |
2302 | QUIT; | |
2303 | } | |
2304 | return len; | |
2305 | } | |
2306 | ||
7f79c47e DE |
2307 | /* For docs on target_write see target.h. */ |
2308 | ||
cf7a04e8 DJ |
2309 | LONGEST |
2310 | target_write (struct target_ops *ops, | |
2311 | enum target_object object, | |
2312 | const char *annex, const gdb_byte *buf, | |
2313 | ULONGEST offset, LONGEST len) | |
2314 | { | |
2315 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2316 | NULL, NULL); | |
2317 | } | |
2318 | ||
159f81f3 DJ |
2319 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2320 | the size of the transferred data. PADDING additional bytes are | |
2321 | available in *BUF_P. This is a helper function for | |
2322 | target_read_alloc; see the declaration of that function for more | |
2323 | information. */ | |
13547ab6 | 2324 | |
159f81f3 DJ |
2325 | static LONGEST |
2326 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2327 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2328 | { |
2329 | size_t buf_alloc, buf_pos; | |
2330 | gdb_byte *buf; | |
2331 | LONGEST n; | |
2332 | ||
2333 | /* This function does not have a length parameter; it reads the | |
2334 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2335 | from one target and partly from another (in a different stratum, | |
2336 | e.g. a core file and an executable). Both reasons make it | |
2337 | unsuitable for reading memory. */ | |
2338 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2339 | ||
2340 | /* Start by reading up to 4K at a time. The target will throttle | |
2341 | this number down if necessary. */ | |
2342 | buf_alloc = 4096; | |
2343 | buf = xmalloc (buf_alloc); | |
2344 | buf_pos = 0; | |
2345 | while (1) | |
2346 | { | |
2347 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 2348 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
2349 | if (n < 0) |
2350 | { | |
2351 | /* An error occurred. */ | |
2352 | xfree (buf); | |
2353 | return -1; | |
2354 | } | |
2355 | else if (n == 0) | |
2356 | { | |
2357 | /* Read all there was. */ | |
2358 | if (buf_pos == 0) | |
2359 | xfree (buf); | |
2360 | else | |
2361 | *buf_p = buf; | |
2362 | return buf_pos; | |
2363 | } | |
2364 | ||
2365 | buf_pos += n; | |
2366 | ||
2367 | /* If the buffer is filling up, expand it. */ | |
2368 | if (buf_alloc < buf_pos * 2) | |
2369 | { | |
2370 | buf_alloc *= 2; | |
2371 | buf = xrealloc (buf, buf_alloc); | |
2372 | } | |
2373 | ||
2374 | QUIT; | |
2375 | } | |
2376 | } | |
2377 | ||
159f81f3 DJ |
2378 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2379 | the size of the transferred data. See the declaration in "target.h" | |
2380 | function for more information about the return value. */ | |
2381 | ||
2382 | LONGEST | |
2383 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2384 | const char *annex, gdb_byte **buf_p) | |
2385 | { | |
2386 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2387 | } | |
2388 | ||
2389 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2390 | returned as a string, allocated using xmalloc. If an error occurs | |
2391 | or the transfer is unsupported, NULL is returned. Empty objects | |
2392 | are returned as allocated but empty strings. A warning is issued | |
2393 | if the result contains any embedded NUL bytes. */ | |
2394 | ||
2395 | char * | |
2396 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2397 | const char *annex) | |
2398 | { | |
39086a0e PA |
2399 | gdb_byte *buffer; |
2400 | char *bufstr; | |
7313baad | 2401 | LONGEST i, transferred; |
159f81f3 | 2402 | |
39086a0e PA |
2403 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2404 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2405 | |
2406 | if (transferred < 0) | |
2407 | return NULL; | |
2408 | ||
2409 | if (transferred == 0) | |
2410 | return xstrdup (""); | |
2411 | ||
39086a0e | 2412 | bufstr[transferred] = 0; |
7313baad UW |
2413 | |
2414 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2415 | for (i = strlen (bufstr); i < transferred; i++) |
2416 | if (bufstr[i] != 0) | |
7313baad UW |
2417 | { |
2418 | warning (_("target object %d, annex %s, " | |
2419 | "contained unexpected null characters"), | |
2420 | (int) object, annex ? annex : "(none)"); | |
2421 | break; | |
2422 | } | |
159f81f3 | 2423 | |
39086a0e | 2424 | return bufstr; |
159f81f3 DJ |
2425 | } |
2426 | ||
b6591e8b AC |
2427 | /* Memory transfer methods. */ |
2428 | ||
2429 | void | |
1b0ba102 | 2430 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2431 | LONGEST len) |
2432 | { | |
07b82ea5 PA |
2433 | /* This method is used to read from an alternate, non-current |
2434 | target. This read must bypass the overlay support (as symbols | |
2435 | don't match this target), and GDB's internal cache (wrong cache | |
2436 | for this target). */ | |
2437 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b AC |
2438 | != len) |
2439 | memory_error (EIO, addr); | |
2440 | } | |
2441 | ||
2442 | ULONGEST | |
5d502164 MS |
2443 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2444 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2445 | { |
f6519ebc | 2446 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2447 | |
2448 | gdb_assert (len <= sizeof (buf)); | |
2449 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2450 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2451 | } |
2452 | ||
d914c394 SS |
2453 | int |
2454 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2455 | struct bp_target_info *bp_tgt) | |
2456 | { | |
2457 | if (!may_insert_breakpoints) | |
2458 | { | |
2459 | warning (_("May not insert breakpoints")); | |
2460 | return 1; | |
2461 | } | |
2462 | ||
2463 | return (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt); | |
2464 | } | |
2465 | ||
2466 | int | |
2467 | target_remove_breakpoint (struct gdbarch *gdbarch, | |
2468 | struct bp_target_info *bp_tgt) | |
2469 | { | |
2470 | /* This is kind of a weird case to handle, but the permission might | |
2471 | have been changed after breakpoints were inserted - in which case | |
2472 | we should just take the user literally and assume that any | |
2473 | breakpoints should be left in place. */ | |
2474 | if (!may_insert_breakpoints) | |
2475 | { | |
2476 | warning (_("May not remove breakpoints")); | |
2477 | return 1; | |
2478 | } | |
2479 | ||
2480 | return (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt); | |
2481 | } | |
2482 | ||
c906108c | 2483 | static void |
fba45db2 | 2484 | target_info (char *args, int from_tty) |
c906108c SS |
2485 | { |
2486 | struct target_ops *t; | |
c906108c | 2487 | int has_all_mem = 0; |
c5aa993b | 2488 | |
c906108c | 2489 | if (symfile_objfile != NULL) |
a3f17187 | 2490 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 2491 | |
258b763a | 2492 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2493 | { |
c35b1492 | 2494 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2495 | continue; |
2496 | ||
c5aa993b | 2497 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2498 | continue; |
2499 | if (has_all_mem) | |
3e43a32a MS |
2500 | printf_unfiltered (_("\tWhile running this, " |
2501 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2502 | printf_unfiltered ("%s:\n", t->to_longname); |
2503 | (t->to_files_info) (t); | |
c35b1492 | 2504 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2505 | } |
2506 | } | |
2507 | ||
fd79ecee DJ |
2508 | /* This function is called before any new inferior is created, e.g. |
2509 | by running a program, attaching, or connecting to a target. | |
2510 | It cleans up any state from previous invocations which might | |
2511 | change between runs. This is a subset of what target_preopen | |
2512 | resets (things which might change between targets). */ | |
2513 | ||
2514 | void | |
2515 | target_pre_inferior (int from_tty) | |
2516 | { | |
c378eb4e | 2517 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2518 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2519 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2520 | to reproduce: |
2521 | ||
2522 | bash$ ./foo& | |
2523 | [1] 4711 | |
2524 | bash$ ./foo& | |
2525 | [1] 4712 | |
2526 | bash$ gdb ./foo | |
2527 | [...] | |
2528 | (gdb) attach 4711 | |
2529 | (gdb) detach | |
2530 | (gdb) attach 4712 | |
2531 | Cannot access memory at address 0xdeadbeef | |
2532 | */ | |
b9db4ced | 2533 | |
50c71eaf PA |
2534 | /* In some OSs, the shared library list is the same/global/shared |
2535 | across inferiors. If code is shared between processes, so are | |
2536 | memory regions and features. */ | |
f5656ead | 2537 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2538 | { |
2539 | no_shared_libraries (NULL, from_tty); | |
2540 | ||
2541 | invalidate_target_mem_regions (); | |
424163ea | 2542 | |
50c71eaf PA |
2543 | target_clear_description (); |
2544 | } | |
8ffcbaaf YQ |
2545 | |
2546 | agent_capability_invalidate (); | |
fd79ecee DJ |
2547 | } |
2548 | ||
b8fa0bfa PA |
2549 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2550 | inferior. */ | |
2551 | ||
2552 | static int | |
2553 | dispose_inferior (struct inferior *inf, void *args) | |
2554 | { | |
2555 | struct thread_info *thread; | |
2556 | ||
2557 | thread = any_thread_of_process (inf->pid); | |
2558 | if (thread) | |
2559 | { | |
2560 | switch_to_thread (thread->ptid); | |
2561 | ||
2562 | /* Core inferiors actually should be detached, not killed. */ | |
2563 | if (target_has_execution) | |
2564 | target_kill (); | |
2565 | else | |
2566 | target_detach (NULL, 0); | |
2567 | } | |
2568 | ||
2569 | return 0; | |
2570 | } | |
2571 | ||
c906108c SS |
2572 | /* This is to be called by the open routine before it does |
2573 | anything. */ | |
2574 | ||
2575 | void | |
fba45db2 | 2576 | target_preopen (int from_tty) |
c906108c | 2577 | { |
c5aa993b | 2578 | dont_repeat (); |
c906108c | 2579 | |
b8fa0bfa | 2580 | if (have_inferiors ()) |
c5aa993b | 2581 | { |
adf40b2e | 2582 | if (!from_tty |
b8fa0bfa PA |
2583 | || !have_live_inferiors () |
2584 | || query (_("A program is being debugged already. Kill it? "))) | |
2585 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2586 | else |
8a3fe4f8 | 2587 | error (_("Program not killed.")); |
c906108c SS |
2588 | } |
2589 | ||
2590 | /* Calling target_kill may remove the target from the stack. But if | |
2591 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2592 | /* Leave the exec target, though. The user may be switching from a |
2593 | live process to a core of the same program. */ | |
460014f5 | 2594 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2595 | |
2596 | target_pre_inferior (from_tty); | |
c906108c SS |
2597 | } |
2598 | ||
2599 | /* Detach a target after doing deferred register stores. */ | |
2600 | ||
2601 | void | |
fba45db2 | 2602 | target_detach (char *args, int from_tty) |
c906108c | 2603 | { |
136d6dae VP |
2604 | struct target_ops* t; |
2605 | ||
f5656ead | 2606 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2607 | /* Don't remove global breakpoints here. They're removed on |
2608 | disconnection from the target. */ | |
2609 | ; | |
2610 | else | |
2611 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2612 | them before detaching. */ | |
6c95b8df | 2613 | remove_breakpoints_pid (PIDGET (inferior_ptid)); |
74960c60 | 2614 | |
24291992 PA |
2615 | prepare_for_detach (); |
2616 | ||
136d6dae VP |
2617 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2618 | { | |
2619 | if (t->to_detach != NULL) | |
2620 | { | |
2621 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2622 | if (targetdebug) |
2623 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2624 | args, from_tty); | |
136d6dae VP |
2625 | return; |
2626 | } | |
2627 | } | |
2628 | ||
9b20d036 | 2629 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2630 | } |
2631 | ||
6ad8ae5c DJ |
2632 | void |
2633 | target_disconnect (char *args, int from_tty) | |
2634 | { | |
597320e7 DJ |
2635 | struct target_ops *t; |
2636 | ||
50c71eaf PA |
2637 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2638 | are global across processes, we have to remove them before | |
2639 | disconnecting. */ | |
74960c60 VP |
2640 | remove_breakpoints (); |
2641 | ||
597320e7 DJ |
2642 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2643 | if (t->to_disconnect != NULL) | |
2644 | { | |
2645 | if (targetdebug) | |
2646 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2647 | args, from_tty); | |
2648 | t->to_disconnect (t, args, from_tty); | |
2649 | return; | |
2650 | } | |
2651 | ||
2652 | tcomplain (); | |
6ad8ae5c DJ |
2653 | } |
2654 | ||
117de6a9 | 2655 | ptid_t |
47608cb1 | 2656 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2657 | { |
2658 | struct target_ops *t; | |
2659 | ||
2660 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2661 | { | |
2662 | if (t->to_wait != NULL) | |
2663 | { | |
47608cb1 | 2664 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
2665 | |
2666 | if (targetdebug) | |
2667 | { | |
2668 | char *status_string; | |
09826ec5 | 2669 | char *options_string; |
117de6a9 PA |
2670 | |
2671 | status_string = target_waitstatus_to_string (status); | |
09826ec5 | 2672 | options_string = target_options_to_string (options); |
117de6a9 | 2673 | fprintf_unfiltered (gdb_stdlog, |
09826ec5 PA |
2674 | "target_wait (%d, status, options={%s})" |
2675 | " = %d, %s\n", | |
2676 | PIDGET (ptid), options_string, | |
2677 | PIDGET (retval), status_string); | |
117de6a9 | 2678 | xfree (status_string); |
09826ec5 | 2679 | xfree (options_string); |
117de6a9 PA |
2680 | } |
2681 | ||
2682 | return retval; | |
2683 | } | |
2684 | } | |
2685 | ||
2686 | noprocess (); | |
2687 | } | |
2688 | ||
2689 | char * | |
2690 | target_pid_to_str (ptid_t ptid) | |
2691 | { | |
2692 | struct target_ops *t; | |
2693 | ||
2694 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2695 | { | |
2696 | if (t->to_pid_to_str != NULL) | |
2697 | return (*t->to_pid_to_str) (t, ptid); | |
2698 | } | |
2699 | ||
2700 | return normal_pid_to_str (ptid); | |
2701 | } | |
2702 | ||
4694da01 TT |
2703 | char * |
2704 | target_thread_name (struct thread_info *info) | |
2705 | { | |
2706 | struct target_ops *t; | |
2707 | ||
2708 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2709 | { | |
2710 | if (t->to_thread_name != NULL) | |
2711 | return (*t->to_thread_name) (info); | |
2712 | } | |
2713 | ||
2714 | return NULL; | |
2715 | } | |
2716 | ||
e1ac3328 | 2717 | void |
2ea28649 | 2718 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2719 | { |
28439f5e PA |
2720 | struct target_ops *t; |
2721 | ||
4e5d721f | 2722 | target_dcache_invalidate (); |
28439f5e PA |
2723 | |
2724 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2725 | { | |
2726 | if (t->to_resume != NULL) | |
2727 | { | |
2728 | t->to_resume (t, ptid, step, signal); | |
2729 | if (targetdebug) | |
2730 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2731 | PIDGET (ptid), | |
2732 | step ? "step" : "continue", | |
2ea28649 | 2733 | gdb_signal_to_name (signal)); |
28439f5e | 2734 | |
e66408ed | 2735 | registers_changed_ptid (ptid); |
28439f5e PA |
2736 | set_executing (ptid, 1); |
2737 | set_running (ptid, 1); | |
edb3359d | 2738 | clear_inline_frame_state (ptid); |
28439f5e PA |
2739 | return; |
2740 | } | |
2741 | } | |
2742 | ||
2743 | noprocess (); | |
e1ac3328 | 2744 | } |
2455069d UW |
2745 | |
2746 | void | |
2747 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2748 | { | |
2749 | struct target_ops *t; | |
2750 | ||
2751 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2752 | { | |
2753 | if (t->to_pass_signals != NULL) | |
2754 | { | |
2755 | if (targetdebug) | |
2756 | { | |
2757 | int i; | |
2758 | ||
2759 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2760 | numsigs); | |
2761 | ||
2762 | for (i = 0; i < numsigs; i++) | |
2763 | if (pass_signals[i]) | |
2764 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2765 | gdb_signal_to_name (i)); |
2455069d UW |
2766 | |
2767 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2768 | } | |
2769 | ||
2770 | (*t->to_pass_signals) (numsigs, pass_signals); | |
2771 | return; | |
2772 | } | |
2773 | } | |
2774 | } | |
2775 | ||
9b224c5e PA |
2776 | void |
2777 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2778 | { | |
2779 | struct target_ops *t; | |
2780 | ||
2781 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2782 | { | |
2783 | if (t->to_program_signals != NULL) | |
2784 | { | |
2785 | if (targetdebug) | |
2786 | { | |
2787 | int i; | |
2788 | ||
2789 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2790 | numsigs); | |
2791 | ||
2792 | for (i = 0; i < numsigs; i++) | |
2793 | if (program_signals[i]) | |
2794 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2795 | gdb_signal_to_name (i)); |
9b224c5e PA |
2796 | |
2797 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2798 | } | |
2799 | ||
2800 | (*t->to_program_signals) (numsigs, program_signals); | |
2801 | return; | |
2802 | } | |
2803 | } | |
2804 | } | |
2805 | ||
ee057212 DJ |
2806 | /* Look through the list of possible targets for a target that can |
2807 | follow forks. */ | |
2808 | ||
2809 | int | |
2810 | target_follow_fork (int follow_child) | |
2811 | { | |
2812 | struct target_ops *t; | |
2813 | ||
2814 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2815 | { | |
2816 | if (t->to_follow_fork != NULL) | |
2817 | { | |
2818 | int retval = t->to_follow_fork (t, follow_child); | |
5d502164 | 2819 | |
ee057212 DJ |
2820 | if (targetdebug) |
2821 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
2822 | follow_child, retval); | |
2823 | return retval; | |
2824 | } | |
2825 | } | |
2826 | ||
2827 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2828 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2829 | _("could not find a target to follow fork")); |
ee057212 DJ |
2830 | } |
2831 | ||
136d6dae VP |
2832 | void |
2833 | target_mourn_inferior (void) | |
2834 | { | |
2835 | struct target_ops *t; | |
5d502164 | 2836 | |
136d6dae VP |
2837 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2838 | { | |
2839 | if (t->to_mourn_inferior != NULL) | |
2840 | { | |
2841 | t->to_mourn_inferior (t); | |
947b8855 PA |
2842 | if (targetdebug) |
2843 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2844 | |
2845 | /* We no longer need to keep handles on any of the object files. | |
2846 | Make sure to release them to avoid unnecessarily locking any | |
2847 | of them while we're not actually debugging. */ | |
2848 | bfd_cache_close_all (); | |
2849 | ||
136d6dae VP |
2850 | return; |
2851 | } | |
2852 | } | |
2853 | ||
2854 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2855 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2856 | } |
2857 | ||
424163ea DJ |
2858 | /* Look for a target which can describe architectural features, starting |
2859 | from TARGET. If we find one, return its description. */ | |
2860 | ||
2861 | const struct target_desc * | |
2862 | target_read_description (struct target_ops *target) | |
2863 | { | |
2864 | struct target_ops *t; | |
2865 | ||
2866 | for (t = target; t != NULL; t = t->beneath) | |
2867 | if (t->to_read_description != NULL) | |
2868 | { | |
2869 | const struct target_desc *tdesc; | |
2870 | ||
2871 | tdesc = t->to_read_description (t); | |
2872 | if (tdesc) | |
2873 | return tdesc; | |
2874 | } | |
2875 | ||
2876 | return NULL; | |
2877 | } | |
2878 | ||
08388c79 DE |
2879 | /* The default implementation of to_search_memory. |
2880 | This implements a basic search of memory, reading target memory and | |
2881 | performing the search here (as opposed to performing the search in on the | |
2882 | target side with, for example, gdbserver). */ | |
2883 | ||
2884 | int | |
2885 | simple_search_memory (struct target_ops *ops, | |
2886 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2887 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2888 | CORE_ADDR *found_addrp) | |
2889 | { | |
2890 | /* NOTE: also defined in find.c testcase. */ | |
2891 | #define SEARCH_CHUNK_SIZE 16000 | |
2892 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2893 | /* Buffer to hold memory contents for searching. */ | |
2894 | gdb_byte *search_buf; | |
2895 | unsigned search_buf_size; | |
2896 | struct cleanup *old_cleanups; | |
2897 | ||
2898 | search_buf_size = chunk_size + pattern_len - 1; | |
2899 | ||
2900 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2901 | if (search_space_len < search_buf_size) | |
2902 | search_buf_size = search_space_len; | |
2903 | ||
2904 | search_buf = malloc (search_buf_size); | |
2905 | if (search_buf == NULL) | |
5e1471f5 | 2906 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2907 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2908 | ||
2909 | /* Prime the search buffer. */ | |
2910 | ||
2911 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2912 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2913 | { | |
b3dc46ff AB |
2914 | warning (_("Unable to access %s bytes of target " |
2915 | "memory at %s, halting search."), | |
2916 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2917 | do_cleanups (old_cleanups); |
2918 | return -1; | |
2919 | } | |
2920 | ||
2921 | /* Perform the search. | |
2922 | ||
2923 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2924 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2925 | read in another N bytes. */ | |
2926 | ||
2927 | while (search_space_len >= pattern_len) | |
2928 | { | |
2929 | gdb_byte *found_ptr; | |
2930 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2931 | ||
2932 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2933 | pattern, pattern_len); | |
2934 | ||
2935 | if (found_ptr != NULL) | |
2936 | { | |
2937 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2938 | |
08388c79 DE |
2939 | *found_addrp = found_addr; |
2940 | do_cleanups (old_cleanups); | |
2941 | return 1; | |
2942 | } | |
2943 | ||
2944 | /* Not found in this chunk, skip to next chunk. */ | |
2945 | ||
2946 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2947 | if (search_space_len >= chunk_size) | |
2948 | search_space_len -= chunk_size; | |
2949 | else | |
2950 | search_space_len = 0; | |
2951 | ||
2952 | if (search_space_len >= pattern_len) | |
2953 | { | |
2954 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2955 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2956 | int nr_to_read; |
2957 | ||
2958 | /* Copy the trailing part of the previous iteration to the front | |
2959 | of the buffer for the next iteration. */ | |
2960 | gdb_assert (keep_len == pattern_len - 1); | |
2961 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2962 | ||
2963 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2964 | ||
2965 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2966 | search_buf + keep_len, read_addr, | |
2967 | nr_to_read) != nr_to_read) | |
2968 | { | |
b3dc46ff | 2969 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2970 | "memory at %s, halting search."), |
b3dc46ff | 2971 | plongest (nr_to_read), |
08388c79 DE |
2972 | hex_string (read_addr)); |
2973 | do_cleanups (old_cleanups); | |
2974 | return -1; | |
2975 | } | |
2976 | ||
2977 | start_addr += chunk_size; | |
2978 | } | |
2979 | } | |
2980 | ||
2981 | /* Not found. */ | |
2982 | ||
2983 | do_cleanups (old_cleanups); | |
2984 | return 0; | |
2985 | } | |
2986 | ||
2987 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2988 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2989 | ||
2990 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2991 | requiring halting of the search (e.g. memory read error). | |
2992 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2993 | ||
2994 | int | |
2995 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2996 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2997 | CORE_ADDR *found_addrp) | |
2998 | { | |
2999 | struct target_ops *t; | |
3000 | int found; | |
3001 | ||
3002 | /* We don't use INHERIT to set current_target.to_search_memory, | |
3003 | so we have to scan the target stack and handle targetdebug | |
3004 | ourselves. */ | |
3005 | ||
3006 | if (targetdebug) | |
3007 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3008 | hex_string (start_addr)); | |
3009 | ||
3010 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3011 | if (t->to_search_memory != NULL) | |
3012 | break; | |
3013 | ||
3014 | if (t != NULL) | |
3015 | { | |
3016 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3017 | pattern, pattern_len, found_addrp); | |
3018 | } | |
3019 | else | |
3020 | { | |
3021 | /* If a special version of to_search_memory isn't available, use the | |
3022 | simple version. */ | |
c35b1492 | 3023 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3024 | start_addr, search_space_len, |
3025 | pattern, pattern_len, found_addrp); | |
3026 | } | |
3027 | ||
3028 | if (targetdebug) | |
3029 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3030 | ||
3031 | return found; | |
3032 | } | |
3033 | ||
8edfe269 DJ |
3034 | /* Look through the currently pushed targets. If none of them will |
3035 | be able to restart the currently running process, issue an error | |
3036 | message. */ | |
3037 | ||
3038 | void | |
3039 | target_require_runnable (void) | |
3040 | { | |
3041 | struct target_ops *t; | |
3042 | ||
3043 | for (t = target_stack; t != NULL; t = t->beneath) | |
3044 | { | |
3045 | /* If this target knows how to create a new program, then | |
3046 | assume we will still be able to after killing the current | |
3047 | one. Either killing and mourning will not pop T, or else | |
3048 | find_default_run_target will find it again. */ | |
3049 | if (t->to_create_inferior != NULL) | |
3050 | return; | |
3051 | ||
3052 | /* Do not worry about thread_stratum targets that can not | |
3053 | create inferiors. Assume they will be pushed again if | |
3054 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3055 | if (t->to_stratum == thread_stratum |
3056 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3057 | continue; |
3058 | ||
3e43a32a MS |
3059 | error (_("The \"%s\" target does not support \"run\". " |
3060 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3061 | t->to_shortname); |
3062 | } | |
3063 | ||
3064 | /* This function is only called if the target is running. In that | |
3065 | case there should have been a process_stratum target and it | |
c378eb4e | 3066 | should either know how to create inferiors, or not... */ |
9b20d036 | 3067 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3068 | } |
3069 | ||
c906108c SS |
3070 | /* Look through the list of possible targets for a target that can |
3071 | execute a run or attach command without any other data. This is | |
3072 | used to locate the default process stratum. | |
3073 | ||
5f667f2d PA |
3074 | If DO_MESG is not NULL, the result is always valid (error() is |
3075 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3076 | |
3077 | static struct target_ops * | |
fba45db2 | 3078 | find_default_run_target (char *do_mesg) |
c906108c SS |
3079 | { |
3080 | struct target_ops **t; | |
3081 | struct target_ops *runable = NULL; | |
3082 | int count; | |
3083 | ||
3084 | count = 0; | |
3085 | ||
3086 | for (t = target_structs; t < target_structs + target_struct_size; | |
3087 | ++t) | |
3088 | { | |
c5aa993b | 3089 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3090 | { |
3091 | runable = *t; | |
3092 | ++count; | |
3093 | } | |
3094 | } | |
3095 | ||
3096 | if (count != 1) | |
5f667f2d PA |
3097 | { |
3098 | if (do_mesg) | |
3099 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3100 | else | |
3101 | return NULL; | |
3102 | } | |
c906108c SS |
3103 | |
3104 | return runable; | |
3105 | } | |
3106 | ||
3107 | void | |
136d6dae | 3108 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3109 | { |
3110 | struct target_ops *t; | |
3111 | ||
c5aa993b | 3112 | t = find_default_run_target ("attach"); |
136d6dae | 3113 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3114 | return; |
3115 | } | |
3116 | ||
c906108c | 3117 | void |
136d6dae VP |
3118 | find_default_create_inferior (struct target_ops *ops, |
3119 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3120 | int from_tty) |
c906108c SS |
3121 | { |
3122 | struct target_ops *t; | |
3123 | ||
c5aa993b | 3124 | t = find_default_run_target ("run"); |
136d6dae | 3125 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3126 | return; |
3127 | } | |
3128 | ||
2c0b251b | 3129 | static int |
b84876c2 PA |
3130 | find_default_can_async_p (void) |
3131 | { | |
3132 | struct target_ops *t; | |
3133 | ||
5f667f2d PA |
3134 | /* This may be called before the target is pushed on the stack; |
3135 | look for the default process stratum. If there's none, gdb isn't | |
3136 | configured with a native debugger, and target remote isn't | |
3137 | connected yet. */ | |
3138 | t = find_default_run_target (NULL); | |
3139 | if (t && t->to_can_async_p) | |
b84876c2 PA |
3140 | return (t->to_can_async_p) (); |
3141 | return 0; | |
3142 | } | |
3143 | ||
2c0b251b | 3144 | static int |
b84876c2 PA |
3145 | find_default_is_async_p (void) |
3146 | { | |
3147 | struct target_ops *t; | |
3148 | ||
5f667f2d PA |
3149 | /* This may be called before the target is pushed on the stack; |
3150 | look for the default process stratum. If there's none, gdb isn't | |
3151 | configured with a native debugger, and target remote isn't | |
3152 | connected yet. */ | |
3153 | t = find_default_run_target (NULL); | |
3154 | if (t && t->to_is_async_p) | |
b84876c2 PA |
3155 | return (t->to_is_async_p) (); |
3156 | return 0; | |
3157 | } | |
3158 | ||
2c0b251b | 3159 | static int |
9908b566 VP |
3160 | find_default_supports_non_stop (void) |
3161 | { | |
3162 | struct target_ops *t; | |
3163 | ||
3164 | t = find_default_run_target (NULL); | |
3165 | if (t && t->to_supports_non_stop) | |
3166 | return (t->to_supports_non_stop) (); | |
3167 | return 0; | |
3168 | } | |
3169 | ||
3170 | int | |
2c0b251b | 3171 | target_supports_non_stop (void) |
9908b566 VP |
3172 | { |
3173 | struct target_ops *t; | |
5d502164 | 3174 | |
9908b566 VP |
3175 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3176 | if (t->to_supports_non_stop) | |
3177 | return t->to_supports_non_stop (); | |
3178 | ||
3179 | return 0; | |
3180 | } | |
3181 | ||
145b16a9 UW |
3182 | /* Implement the "info proc" command. */ |
3183 | ||
451b7c33 | 3184 | int |
145b16a9 UW |
3185 | target_info_proc (char *args, enum info_proc_what what) |
3186 | { | |
3187 | struct target_ops *t; | |
3188 | ||
3189 | /* If we're already connected to something that can get us OS | |
3190 | related data, use it. Otherwise, try using the native | |
3191 | target. */ | |
3192 | if (current_target.to_stratum >= process_stratum) | |
3193 | t = current_target.beneath; | |
3194 | else | |
3195 | t = find_default_run_target (NULL); | |
3196 | ||
3197 | for (; t != NULL; t = t->beneath) | |
3198 | { | |
3199 | if (t->to_info_proc != NULL) | |
3200 | { | |
3201 | t->to_info_proc (t, args, what); | |
3202 | ||
3203 | if (targetdebug) | |
3204 | fprintf_unfiltered (gdb_stdlog, | |
3205 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3206 | ||
451b7c33 | 3207 | return 1; |
145b16a9 UW |
3208 | } |
3209 | } | |
3210 | ||
451b7c33 | 3211 | return 0; |
145b16a9 UW |
3212 | } |
3213 | ||
03583c20 UW |
3214 | static int |
3215 | find_default_supports_disable_randomization (void) | |
3216 | { | |
3217 | struct target_ops *t; | |
3218 | ||
3219 | t = find_default_run_target (NULL); | |
3220 | if (t && t->to_supports_disable_randomization) | |
3221 | return (t->to_supports_disable_randomization) (); | |
3222 | return 0; | |
3223 | } | |
3224 | ||
3225 | int | |
3226 | target_supports_disable_randomization (void) | |
3227 | { | |
3228 | struct target_ops *t; | |
3229 | ||
3230 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3231 | if (t->to_supports_disable_randomization) | |
3232 | return t->to_supports_disable_randomization (); | |
3233 | ||
3234 | return 0; | |
3235 | } | |
9908b566 | 3236 | |
07e059b5 VP |
3237 | char * |
3238 | target_get_osdata (const char *type) | |
3239 | { | |
07e059b5 VP |
3240 | struct target_ops *t; |
3241 | ||
739ef7fb PA |
3242 | /* If we're already connected to something that can get us OS |
3243 | related data, use it. Otherwise, try using the native | |
3244 | target. */ | |
3245 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3246 | t = current_target.beneath; |
739ef7fb PA |
3247 | else |
3248 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3249 | |
3250 | if (!t) | |
3251 | return NULL; | |
3252 | ||
6d097e65 | 3253 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3254 | } |
3255 | ||
6c95b8df PA |
3256 | /* Determine the current address space of thread PTID. */ |
3257 | ||
3258 | struct address_space * | |
3259 | target_thread_address_space (ptid_t ptid) | |
3260 | { | |
c0694254 | 3261 | struct address_space *aspace; |
6c95b8df | 3262 | struct inferior *inf; |
c0694254 PA |
3263 | struct target_ops *t; |
3264 | ||
3265 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3266 | { | |
3267 | if (t->to_thread_address_space != NULL) | |
3268 | { | |
3269 | aspace = t->to_thread_address_space (t, ptid); | |
3270 | gdb_assert (aspace); | |
6c95b8df | 3271 | |
c0694254 PA |
3272 | if (targetdebug) |
3273 | fprintf_unfiltered (gdb_stdlog, | |
3274 | "target_thread_address_space (%s) = %d\n", | |
3275 | target_pid_to_str (ptid), | |
3276 | address_space_num (aspace)); | |
3277 | return aspace; | |
3278 | } | |
3279 | } | |
6c95b8df PA |
3280 | |
3281 | /* Fall-back to the "main" address space of the inferior. */ | |
3282 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3283 | ||
3284 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3285 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3286 | _("Can't determine the current " |
3287 | "address space of thread %s\n"), | |
6c95b8df PA |
3288 | target_pid_to_str (ptid)); |
3289 | ||
3290 | return inf->aspace; | |
3291 | } | |
3292 | ||
7313baad UW |
3293 | |
3294 | /* Target file operations. */ | |
3295 | ||
3296 | static struct target_ops * | |
3297 | default_fileio_target (void) | |
3298 | { | |
3299 | /* If we're already connected to something that can perform | |
3300 | file I/O, use it. Otherwise, try using the native target. */ | |
3301 | if (current_target.to_stratum >= process_stratum) | |
3302 | return current_target.beneath; | |
3303 | else | |
3304 | return find_default_run_target ("file I/O"); | |
3305 | } | |
3306 | ||
3307 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3308 | target file descriptor, or -1 if an error occurs (and set | |
3309 | *TARGET_ERRNO). */ | |
3310 | int | |
3311 | target_fileio_open (const char *filename, int flags, int mode, | |
3312 | int *target_errno) | |
3313 | { | |
3314 | struct target_ops *t; | |
3315 | ||
3316 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3317 | { | |
3318 | if (t->to_fileio_open != NULL) | |
3319 | { | |
3320 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3321 | ||
3322 | if (targetdebug) | |
3323 | fprintf_unfiltered (gdb_stdlog, | |
3324 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3325 | filename, flags, mode, | |
3326 | fd, fd != -1 ? 0 : *target_errno); | |
3327 | return fd; | |
3328 | } | |
3329 | } | |
3330 | ||
3331 | *target_errno = FILEIO_ENOSYS; | |
3332 | return -1; | |
3333 | } | |
3334 | ||
3335 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3336 | Return the number of bytes written, or -1 if an error occurs | |
3337 | (and set *TARGET_ERRNO). */ | |
3338 | int | |
3339 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3340 | ULONGEST offset, int *target_errno) | |
3341 | { | |
3342 | struct target_ops *t; | |
3343 | ||
3344 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3345 | { | |
3346 | if (t->to_fileio_pwrite != NULL) | |
3347 | { | |
3348 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3349 | target_errno); | |
3350 | ||
3351 | if (targetdebug) | |
3352 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3353 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3354 | "= %d (%d)\n", |
a71b5a38 | 3355 | fd, len, pulongest (offset), |
7313baad UW |
3356 | ret, ret != -1 ? 0 : *target_errno); |
3357 | return ret; | |
3358 | } | |
3359 | } | |
3360 | ||
3361 | *target_errno = FILEIO_ENOSYS; | |
3362 | return -1; | |
3363 | } | |
3364 | ||
3365 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3366 | Return the number of bytes read, or -1 if an error occurs | |
3367 | (and set *TARGET_ERRNO). */ | |
3368 | int | |
3369 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3370 | ULONGEST offset, int *target_errno) | |
3371 | { | |
3372 | struct target_ops *t; | |
3373 | ||
3374 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3375 | { | |
3376 | if (t->to_fileio_pread != NULL) | |
3377 | { | |
3378 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3379 | target_errno); | |
3380 | ||
3381 | if (targetdebug) | |
3382 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3383 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3384 | "= %d (%d)\n", |
a71b5a38 | 3385 | fd, len, pulongest (offset), |
7313baad UW |
3386 | ret, ret != -1 ? 0 : *target_errno); |
3387 | return ret; | |
3388 | } | |
3389 | } | |
3390 | ||
3391 | *target_errno = FILEIO_ENOSYS; | |
3392 | return -1; | |
3393 | } | |
3394 | ||
3395 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3396 | (and set *TARGET_ERRNO). */ | |
3397 | int | |
3398 | target_fileio_close (int fd, int *target_errno) | |
3399 | { | |
3400 | struct target_ops *t; | |
3401 | ||
3402 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3403 | { | |
3404 | if (t->to_fileio_close != NULL) | |
3405 | { | |
3406 | int ret = t->to_fileio_close (fd, target_errno); | |
3407 | ||
3408 | if (targetdebug) | |
3409 | fprintf_unfiltered (gdb_stdlog, | |
3410 | "target_fileio_close (%d) = %d (%d)\n", | |
3411 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3412 | return ret; | |
3413 | } | |
3414 | } | |
3415 | ||
3416 | *target_errno = FILEIO_ENOSYS; | |
3417 | return -1; | |
3418 | } | |
3419 | ||
3420 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3421 | occurs (and set *TARGET_ERRNO). */ | |
3422 | int | |
3423 | target_fileio_unlink (const char *filename, int *target_errno) | |
3424 | { | |
3425 | struct target_ops *t; | |
3426 | ||
3427 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3428 | { | |
3429 | if (t->to_fileio_unlink != NULL) | |
3430 | { | |
3431 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3432 | ||
3433 | if (targetdebug) | |
3434 | fprintf_unfiltered (gdb_stdlog, | |
3435 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3436 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3437 | return ret; | |
3438 | } | |
3439 | } | |
3440 | ||
3441 | *target_errno = FILEIO_ENOSYS; | |
3442 | return -1; | |
3443 | } | |
3444 | ||
b9e7b9c3 UW |
3445 | /* Read value of symbolic link FILENAME on the target. Return a |
3446 | null-terminated string allocated via xmalloc, or NULL if an error | |
3447 | occurs (and set *TARGET_ERRNO). */ | |
3448 | char * | |
3449 | target_fileio_readlink (const char *filename, int *target_errno) | |
3450 | { | |
3451 | struct target_ops *t; | |
3452 | ||
3453 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3454 | { | |
3455 | if (t->to_fileio_readlink != NULL) | |
3456 | { | |
3457 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3458 | ||
3459 | if (targetdebug) | |
3460 | fprintf_unfiltered (gdb_stdlog, | |
3461 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3462 | filename, ret? ret : "(nil)", | |
3463 | ret? 0 : *target_errno); | |
3464 | return ret; | |
3465 | } | |
3466 | } | |
3467 | ||
3468 | *target_errno = FILEIO_ENOSYS; | |
3469 | return NULL; | |
3470 | } | |
3471 | ||
7313baad UW |
3472 | static void |
3473 | target_fileio_close_cleanup (void *opaque) | |
3474 | { | |
3475 | int fd = *(int *) opaque; | |
3476 | int target_errno; | |
3477 | ||
3478 | target_fileio_close (fd, &target_errno); | |
3479 | } | |
3480 | ||
3481 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3482 | return the size of the transferred data. PADDING additional bytes are | |
3483 | available in *BUF_P. This is a helper function for | |
3484 | target_fileio_read_alloc; see the declaration of that function for more | |
3485 | information. */ | |
3486 | ||
3487 | static LONGEST | |
3488 | target_fileio_read_alloc_1 (const char *filename, | |
3489 | gdb_byte **buf_p, int padding) | |
3490 | { | |
3491 | struct cleanup *close_cleanup; | |
3492 | size_t buf_alloc, buf_pos; | |
3493 | gdb_byte *buf; | |
3494 | LONGEST n; | |
3495 | int fd; | |
3496 | int target_errno; | |
3497 | ||
3498 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3499 | if (fd == -1) | |
3500 | return -1; | |
3501 | ||
3502 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3503 | ||
3504 | /* Start by reading up to 4K at a time. The target will throttle | |
3505 | this number down if necessary. */ | |
3506 | buf_alloc = 4096; | |
3507 | buf = xmalloc (buf_alloc); | |
3508 | buf_pos = 0; | |
3509 | while (1) | |
3510 | { | |
3511 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3512 | buf_alloc - buf_pos - padding, buf_pos, | |
3513 | &target_errno); | |
3514 | if (n < 0) | |
3515 | { | |
3516 | /* An error occurred. */ | |
3517 | do_cleanups (close_cleanup); | |
3518 | xfree (buf); | |
3519 | return -1; | |
3520 | } | |
3521 | else if (n == 0) | |
3522 | { | |
3523 | /* Read all there was. */ | |
3524 | do_cleanups (close_cleanup); | |
3525 | if (buf_pos == 0) | |
3526 | xfree (buf); | |
3527 | else | |
3528 | *buf_p = buf; | |
3529 | return buf_pos; | |
3530 | } | |
3531 | ||
3532 | buf_pos += n; | |
3533 | ||
3534 | /* If the buffer is filling up, expand it. */ | |
3535 | if (buf_alloc < buf_pos * 2) | |
3536 | { | |
3537 | buf_alloc *= 2; | |
3538 | buf = xrealloc (buf, buf_alloc); | |
3539 | } | |
3540 | ||
3541 | QUIT; | |
3542 | } | |
3543 | } | |
3544 | ||
3545 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3546 | the size of the transferred data. See the declaration in "target.h" | |
3547 | function for more information about the return value. */ | |
3548 | ||
3549 | LONGEST | |
3550 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3551 | { | |
3552 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3553 | } | |
3554 | ||
3555 | /* Read target file FILENAME. The result is NUL-terminated and | |
3556 | returned as a string, allocated using xmalloc. If an error occurs | |
3557 | or the transfer is unsupported, NULL is returned. Empty objects | |
3558 | are returned as allocated but empty strings. A warning is issued | |
3559 | if the result contains any embedded NUL bytes. */ | |
3560 | ||
3561 | char * | |
3562 | target_fileio_read_stralloc (const char *filename) | |
3563 | { | |
39086a0e PA |
3564 | gdb_byte *buffer; |
3565 | char *bufstr; | |
7313baad UW |
3566 | LONGEST i, transferred; |
3567 | ||
39086a0e PA |
3568 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3569 | bufstr = (char *) buffer; | |
7313baad UW |
3570 | |
3571 | if (transferred < 0) | |
3572 | return NULL; | |
3573 | ||
3574 | if (transferred == 0) | |
3575 | return xstrdup (""); | |
3576 | ||
39086a0e | 3577 | bufstr[transferred] = 0; |
7313baad UW |
3578 | |
3579 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3580 | for (i = strlen (bufstr); i < transferred; i++) |
3581 | if (bufstr[i] != 0) | |
7313baad UW |
3582 | { |
3583 | warning (_("target file %s " | |
3584 | "contained unexpected null characters"), | |
3585 | filename); | |
3586 | break; | |
3587 | } | |
3588 | ||
39086a0e | 3589 | return bufstr; |
7313baad UW |
3590 | } |
3591 | ||
3592 | ||
e0d24f8d WZ |
3593 | static int |
3594 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3595 | { | |
f5656ead | 3596 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3597 | } |
3598 | ||
5009afc5 AS |
3599 | static int |
3600 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3601 | CORE_ADDR addr, | |
3602 | CORE_ADDR start, int length) | |
3603 | { | |
3604 | return addr >= start && addr < start + length; | |
3605 | } | |
3606 | ||
c2250ad1 UW |
3607 | static struct gdbarch * |
3608 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3609 | { | |
f5656ead | 3610 | return target_gdbarch (); |
c2250ad1 UW |
3611 | } |
3612 | ||
c906108c | 3613 | static int |
fba45db2 | 3614 | return_zero (void) |
c906108c SS |
3615 | { |
3616 | return 0; | |
3617 | } | |
3618 | ||
3619 | static int | |
fba45db2 | 3620 | return_one (void) |
c906108c SS |
3621 | { |
3622 | return 1; | |
3623 | } | |
3624 | ||
ccaa32c7 GS |
3625 | static int |
3626 | return_minus_one (void) | |
3627 | { | |
3628 | return -1; | |
3629 | } | |
3630 | ||
7a292a7a SS |
3631 | /* Find a single runnable target in the stack and return it. If for |
3632 | some reason there is more than one, return NULL. */ | |
3633 | ||
3634 | struct target_ops * | |
fba45db2 | 3635 | find_run_target (void) |
7a292a7a SS |
3636 | { |
3637 | struct target_ops **t; | |
3638 | struct target_ops *runable = NULL; | |
3639 | int count; | |
c5aa993b | 3640 | |
7a292a7a | 3641 | count = 0; |
c5aa993b | 3642 | |
7a292a7a SS |
3643 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
3644 | { | |
c5aa993b | 3645 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
3646 | { |
3647 | runable = *t; | |
3648 | ++count; | |
3649 | } | |
3650 | } | |
c5aa993b | 3651 | |
7a292a7a SS |
3652 | return (count == 1 ? runable : NULL); |
3653 | } | |
3654 | ||
ed9a39eb JM |
3655 | /* |
3656 | * Find the next target down the stack from the specified target. | |
3657 | */ | |
3658 | ||
3659 | struct target_ops * | |
fba45db2 | 3660 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3661 | { |
258b763a | 3662 | return t->beneath; |
ed9a39eb JM |
3663 | } |
3664 | ||
c906108c SS |
3665 | \f |
3666 | /* The inferior process has died. Long live the inferior! */ | |
3667 | ||
3668 | void | |
fba45db2 | 3669 | generic_mourn_inferior (void) |
c906108c | 3670 | { |
7f9f62ba | 3671 | ptid_t ptid; |
c906108c | 3672 | |
7f9f62ba | 3673 | ptid = inferior_ptid; |
39f77062 | 3674 | inferior_ptid = null_ptid; |
7f9f62ba | 3675 | |
f59f708a PA |
3676 | /* Mark breakpoints uninserted in case something tries to delete a |
3677 | breakpoint while we delete the inferior's threads (which would | |
3678 | fail, since the inferior is long gone). */ | |
3679 | mark_breakpoints_out (); | |
3680 | ||
7f9f62ba PA |
3681 | if (!ptid_equal (ptid, null_ptid)) |
3682 | { | |
3683 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3684 | exit_inferior (pid); |
7f9f62ba PA |
3685 | } |
3686 | ||
f59f708a PA |
3687 | /* Note this wipes step-resume breakpoints, so needs to be done |
3688 | after exit_inferior, which ends up referencing the step-resume | |
3689 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3690 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3691 | |
c906108c SS |
3692 | registers_changed (); |
3693 | ||
c906108c SS |
3694 | reopen_exec_file (); |
3695 | reinit_frame_cache (); | |
3696 | ||
9a4105ab AC |
3697 | if (deprecated_detach_hook) |
3698 | deprecated_detach_hook (); | |
c906108c SS |
3699 | } |
3700 | \f | |
fd0a2a6f MK |
3701 | /* Convert a normal process ID to a string. Returns the string in a |
3702 | static buffer. */ | |
c906108c SS |
3703 | |
3704 | char * | |
39f77062 | 3705 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3706 | { |
fd0a2a6f | 3707 | static char buf[32]; |
c906108c | 3708 | |
5fff8fc0 | 3709 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3710 | return buf; |
3711 | } | |
3712 | ||
2c0b251b | 3713 | static char * |
117de6a9 PA |
3714 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3715 | { | |
3716 | return normal_pid_to_str (ptid); | |
3717 | } | |
3718 | ||
9b4eba8e HZ |
3719 | /* Error-catcher for target_find_memory_regions. */ |
3720 | static int | |
b8edc417 | 3721 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3722 | { |
9b4eba8e | 3723 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3724 | return 0; |
3725 | } | |
3726 | ||
9b4eba8e HZ |
3727 | /* Error-catcher for target_make_corefile_notes. */ |
3728 | static char * | |
3729 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3730 | { |
9b4eba8e | 3731 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3732 | return NULL; |
3733 | } | |
3734 | ||
6b04bdb7 MS |
3735 | /* Error-catcher for target_get_bookmark. */ |
3736 | static gdb_byte * | |
3737 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3738 | { | |
3739 | tcomplain (); | |
3740 | return NULL; | |
3741 | } | |
3742 | ||
3743 | /* Error-catcher for target_goto_bookmark. */ | |
3744 | static void | |
3745 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3746 | { | |
3747 | tcomplain (); | |
3748 | } | |
3749 | ||
c906108c SS |
3750 | /* Set up the handful of non-empty slots needed by the dummy target |
3751 | vector. */ | |
3752 | ||
3753 | static void | |
fba45db2 | 3754 | init_dummy_target (void) |
c906108c SS |
3755 | { |
3756 | dummy_target.to_shortname = "None"; | |
3757 | dummy_target.to_longname = "None"; | |
3758 | dummy_target.to_doc = ""; | |
3759 | dummy_target.to_attach = find_default_attach; | |
136d6dae VP |
3760 | dummy_target.to_detach = |
3761 | (void (*)(struct target_ops *, char *, int))target_ignore; | |
c906108c | 3762 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
3763 | dummy_target.to_can_async_p = find_default_can_async_p; |
3764 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 3765 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3766 | dummy_target.to_supports_disable_randomization |
3767 | = find_default_supports_disable_randomization; | |
117de6a9 | 3768 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3769 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3770 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3771 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3772 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3773 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
0b603eba | 3774 | dummy_target.to_xfer_partial = default_xfer_partial; |
c35b1492 PA |
3775 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3776 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3777 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3778 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3779 | dummy_target.to_has_execution |
3780 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
7155de5a HZ |
3781 | dummy_target.to_stopped_by_watchpoint = return_zero; |
3782 | dummy_target.to_stopped_data_address = | |
3783 | (int (*) (struct target_ops *, CORE_ADDR *)) return_zero; | |
c906108c SS |
3784 | dummy_target.to_magic = OPS_MAGIC; |
3785 | } | |
c906108c | 3786 | \f |
c906108c | 3787 | static void |
fba45db2 | 3788 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3789 | { |
3790 | debug_target.to_open (args, from_tty); | |
3791 | ||
96baa820 | 3792 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3793 | } |
3794 | ||
f1c07ab0 | 3795 | void |
460014f5 | 3796 | target_close (struct target_ops *targ) |
f1c07ab0 AC |
3797 | { |
3798 | if (targ->to_xclose != NULL) | |
460014f5 | 3799 | targ->to_xclose (targ); |
f1c07ab0 | 3800 | else if (targ->to_close != NULL) |
460014f5 | 3801 | targ->to_close (); |
947b8855 PA |
3802 | |
3803 | if (targetdebug) | |
460014f5 | 3804 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3805 | } |
3806 | ||
136d6dae VP |
3807 | void |
3808 | target_attach (char *args, int from_tty) | |
3809 | { | |
3810 | struct target_ops *t; | |
5d502164 | 3811 | |
136d6dae VP |
3812 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3813 | { | |
3814 | if (t->to_attach != NULL) | |
3815 | { | |
3816 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3817 | if (targetdebug) |
3818 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3819 | args, from_tty); | |
136d6dae VP |
3820 | return; |
3821 | } | |
3822 | } | |
3823 | ||
3824 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3825 | _("could not find a target to attach")); |
136d6dae VP |
3826 | } |
3827 | ||
28439f5e PA |
3828 | int |
3829 | target_thread_alive (ptid_t ptid) | |
c906108c | 3830 | { |
28439f5e | 3831 | struct target_ops *t; |
5d502164 | 3832 | |
28439f5e PA |
3833 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3834 | { | |
3835 | if (t->to_thread_alive != NULL) | |
3836 | { | |
3837 | int retval; | |
c906108c | 3838 | |
28439f5e PA |
3839 | retval = t->to_thread_alive (t, ptid); |
3840 | if (targetdebug) | |
3841 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3842 | PIDGET (ptid), retval); | |
3843 | ||
3844 | return retval; | |
3845 | } | |
3846 | } | |
3847 | ||
3848 | return 0; | |
3849 | } | |
3850 | ||
3851 | void | |
3852 | target_find_new_threads (void) | |
3853 | { | |
3854 | struct target_ops *t; | |
5d502164 | 3855 | |
28439f5e PA |
3856 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3857 | { | |
3858 | if (t->to_find_new_threads != NULL) | |
3859 | { | |
3860 | t->to_find_new_threads (t); | |
3861 | if (targetdebug) | |
3862 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3863 | ||
3864 | return; | |
3865 | } | |
3866 | } | |
c906108c SS |
3867 | } |
3868 | ||
d914c394 SS |
3869 | void |
3870 | target_stop (ptid_t ptid) | |
3871 | { | |
3872 | if (!may_stop) | |
3873 | { | |
3874 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3875 | return; | |
3876 | } | |
3877 | ||
3878 | (*current_target.to_stop) (ptid); | |
3879 | } | |
3880 | ||
c906108c | 3881 | static void |
28439f5e | 3882 | debug_to_post_attach (int pid) |
c906108c | 3883 | { |
28439f5e | 3884 | debug_target.to_post_attach (pid); |
c906108c | 3885 | |
28439f5e | 3886 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3887 | } |
3888 | ||
f00150c9 DE |
3889 | /* Return a pretty printed form of target_waitstatus. |
3890 | Space for the result is malloc'd, caller must free. */ | |
c906108c | 3891 | |
f00150c9 DE |
3892 | char * |
3893 | target_waitstatus_to_string (const struct target_waitstatus *ws) | |
3894 | { | |
3895 | const char *kind_str = "status->kind = "; | |
c906108c | 3896 | |
f00150c9 | 3897 | switch (ws->kind) |
c906108c SS |
3898 | { |
3899 | case TARGET_WAITKIND_EXITED: | |
f00150c9 DE |
3900 | return xstrprintf ("%sexited, status = %d", |
3901 | kind_str, ws->value.integer); | |
c906108c | 3902 | case TARGET_WAITKIND_STOPPED: |
f00150c9 | 3903 | return xstrprintf ("%sstopped, signal = %s", |
2ea28649 | 3904 | kind_str, gdb_signal_to_name (ws->value.sig)); |
c906108c | 3905 | case TARGET_WAITKIND_SIGNALLED: |
f00150c9 | 3906 | return xstrprintf ("%ssignalled, signal = %s", |
2ea28649 | 3907 | kind_str, gdb_signal_to_name (ws->value.sig)); |
c906108c | 3908 | case TARGET_WAITKIND_LOADED: |
f00150c9 | 3909 | return xstrprintf ("%sloaded", kind_str); |
c906108c | 3910 | case TARGET_WAITKIND_FORKED: |
f00150c9 | 3911 | return xstrprintf ("%sforked", kind_str); |
c906108c | 3912 | case TARGET_WAITKIND_VFORKED: |
f00150c9 | 3913 | return xstrprintf ("%svforked", kind_str); |
c906108c | 3914 | case TARGET_WAITKIND_EXECD: |
f00150c9 | 3915 | return xstrprintf ("%sexecd", kind_str); |
87d2d2a4 PA |
3916 | case TARGET_WAITKIND_VFORK_DONE: |
3917 | return xstrprintf ("%svfork-done", kind_str); | |
f00150c9 | 3918 | case TARGET_WAITKIND_SYSCALL_ENTRY: |
a96d9b2e | 3919 | return xstrprintf ("%sentered syscall", kind_str); |
f00150c9 | 3920 | case TARGET_WAITKIND_SYSCALL_RETURN: |
a96d9b2e | 3921 | return xstrprintf ("%sexited syscall", kind_str); |
c906108c | 3922 | case TARGET_WAITKIND_SPURIOUS: |
f00150c9 DE |
3923 | return xstrprintf ("%sspurious", kind_str); |
3924 | case TARGET_WAITKIND_IGNORE: | |
3925 | return xstrprintf ("%signore", kind_str); | |
3926 | case TARGET_WAITKIND_NO_HISTORY: | |
3927 | return xstrprintf ("%sno-history", kind_str); | |
0c94aa73 PA |
3928 | case TARGET_WAITKIND_NO_RESUMED: |
3929 | return xstrprintf ("%sno-resumed", kind_str); | |
c906108c | 3930 | default: |
f00150c9 | 3931 | return xstrprintf ("%sunknown???", kind_str); |
c906108c | 3932 | } |
f00150c9 DE |
3933 | } |
3934 | ||
09826ec5 PA |
3935 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3936 | result. The LIST incoming argument is released. */ | |
3937 | ||
3938 | static char * | |
3939 | str_comma_list_concat_elem (char *list, const char *elem) | |
3940 | { | |
3941 | if (list == NULL) | |
3942 | return xstrdup (elem); | |
3943 | else | |
3944 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3945 | } | |
3946 | ||
3947 | /* Helper for target_options_to_string. If OPT is present in | |
3948 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3949 | Returns the new resulting string. OPT is removed from | |
3950 | TARGET_OPTIONS. */ | |
3951 | ||
3952 | static char * | |
3953 | do_option (int *target_options, char *ret, | |
3954 | int opt, char *opt_str) | |
3955 | { | |
3956 | if ((*target_options & opt) != 0) | |
3957 | { | |
3958 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3959 | *target_options &= ~opt; | |
3960 | } | |
3961 | ||
3962 | return ret; | |
3963 | } | |
3964 | ||
3965 | char * | |
3966 | target_options_to_string (int target_options) | |
3967 | { | |
3968 | char *ret = NULL; | |
3969 | ||
3970 | #define DO_TARG_OPTION(OPT) \ | |
3971 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3972 | ||
3973 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3974 | ||
3975 | if (target_options != 0) | |
3976 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3977 | ||
3978 | if (ret == NULL) | |
3979 | ret = xstrdup (""); | |
3980 | return ret; | |
3981 | } | |
3982 | ||
bf0c5130 | 3983 | static void |
56be3814 UW |
3984 | debug_print_register (const char * func, |
3985 | struct regcache *regcache, int regno) | |
bf0c5130 | 3986 | { |
f8d29908 | 3987 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3988 | |
bf0c5130 | 3989 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3990 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3991 | && gdbarch_register_name (gdbarch, regno) != NULL |
3992 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3993 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3994 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3995 | else |
3996 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3997 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3998 | { |
e17a4113 | 3999 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 4000 | int i, size = register_size (gdbarch, regno); |
e362b510 | 4001 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 4002 | |
0ff58721 | 4003 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 4004 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 4005 | for (i = 0; i < size; i++) |
bf0c5130 AC |
4006 | { |
4007 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
4008 | } | |
81c4a259 | 4009 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 4010 | { |
e17a4113 | 4011 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 4012 | |
0b1553bc UW |
4013 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
4014 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
4015 | } |
4016 | } | |
4017 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4018 | } | |
4019 | ||
28439f5e PA |
4020 | void |
4021 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 4022 | { |
28439f5e | 4023 | struct target_ops *t; |
5d502164 | 4024 | |
28439f5e PA |
4025 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
4026 | { | |
4027 | if (t->to_fetch_registers != NULL) | |
4028 | { | |
4029 | t->to_fetch_registers (t, regcache, regno); | |
4030 | if (targetdebug) | |
4031 | debug_print_register ("target_fetch_registers", regcache, regno); | |
4032 | return; | |
4033 | } | |
4034 | } | |
c906108c SS |
4035 | } |
4036 | ||
28439f5e PA |
4037 | void |
4038 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 4039 | { |
28439f5e | 4040 | struct target_ops *t; |
5d502164 | 4041 | |
d914c394 SS |
4042 | if (!may_write_registers) |
4043 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
4044 | ||
28439f5e PA |
4045 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
4046 | { | |
4047 | if (t->to_store_registers != NULL) | |
4048 | { | |
4049 | t->to_store_registers (t, regcache, regno); | |
4050 | if (targetdebug) | |
4051 | { | |
4052 | debug_print_register ("target_store_registers", regcache, regno); | |
4053 | } | |
4054 | return; | |
4055 | } | |
4056 | } | |
4057 | ||
4058 | noprocess (); | |
c906108c SS |
4059 | } |
4060 | ||
dc146f7c VP |
4061 | int |
4062 | target_core_of_thread (ptid_t ptid) | |
4063 | { | |
4064 | struct target_ops *t; | |
4065 | ||
4066 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4067 | { | |
4068 | if (t->to_core_of_thread != NULL) | |
4069 | { | |
4070 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 4071 | |
dc146f7c | 4072 | if (targetdebug) |
3e43a32a MS |
4073 | fprintf_unfiltered (gdb_stdlog, |
4074 | "target_core_of_thread (%d) = %d\n", | |
dc146f7c VP |
4075 | PIDGET (ptid), retval); |
4076 | return retval; | |
4077 | } | |
4078 | } | |
4079 | ||
4080 | return -1; | |
4081 | } | |
4082 | ||
4a5e7a5b PA |
4083 | int |
4084 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4085 | { | |
4086 | struct target_ops *t; | |
4087 | ||
4088 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4089 | { | |
4090 | if (t->to_verify_memory != NULL) | |
4091 | { | |
4092 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4093 | |
4a5e7a5b | 4094 | if (targetdebug) |
3e43a32a MS |
4095 | fprintf_unfiltered (gdb_stdlog, |
4096 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4097 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4098 | pulongest (size), |
4099 | retval); | |
4100 | return retval; | |
4101 | } | |
4102 | } | |
4103 | ||
4104 | tcomplain (); | |
4105 | } | |
4106 | ||
9c06b0b4 TJB |
4107 | /* The documentation for this function is in its prototype declaration in |
4108 | target.h. */ | |
4109 | ||
4110 | int | |
4111 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4112 | { | |
4113 | struct target_ops *t; | |
4114 | ||
4115 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4116 | if (t->to_insert_mask_watchpoint != NULL) | |
4117 | { | |
4118 | int ret; | |
4119 | ||
4120 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4121 | ||
4122 | if (targetdebug) | |
4123 | fprintf_unfiltered (gdb_stdlog, "\ | |
4124 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4125 | core_addr_to_string (addr), | |
4126 | core_addr_to_string (mask), rw, ret); | |
4127 | ||
4128 | return ret; | |
4129 | } | |
4130 | ||
4131 | return 1; | |
4132 | } | |
4133 | ||
4134 | /* The documentation for this function is in its prototype declaration in | |
4135 | target.h. */ | |
4136 | ||
4137 | int | |
4138 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4139 | { | |
4140 | struct target_ops *t; | |
4141 | ||
4142 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4143 | if (t->to_remove_mask_watchpoint != NULL) | |
4144 | { | |
4145 | int ret; | |
4146 | ||
4147 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4148 | ||
4149 | if (targetdebug) | |
4150 | fprintf_unfiltered (gdb_stdlog, "\ | |
4151 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4152 | core_addr_to_string (addr), | |
4153 | core_addr_to_string (mask), rw, ret); | |
4154 | ||
4155 | return ret; | |
4156 | } | |
4157 | ||
4158 | return 1; | |
4159 | } | |
4160 | ||
4161 | /* The documentation for this function is in its prototype declaration | |
4162 | in target.h. */ | |
4163 | ||
4164 | int | |
4165 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4166 | { | |
4167 | struct target_ops *t; | |
4168 | ||
4169 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4170 | if (t->to_masked_watch_num_registers != NULL) | |
4171 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4172 | ||
4173 | return -1; | |
4174 | } | |
4175 | ||
f1310107 TJB |
4176 | /* The documentation for this function is in its prototype declaration |
4177 | in target.h. */ | |
4178 | ||
4179 | int | |
4180 | target_ranged_break_num_registers (void) | |
4181 | { | |
4182 | struct target_ops *t; | |
4183 | ||
4184 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4185 | if (t->to_ranged_break_num_registers != NULL) | |
4186 | return t->to_ranged_break_num_registers (t); | |
4187 | ||
4188 | return -1; | |
4189 | } | |
4190 | ||
02d27625 MM |
4191 | /* See target.h. */ |
4192 | ||
4193 | int | |
4194 | target_supports_btrace (void) | |
4195 | { | |
4196 | struct target_ops *t; | |
4197 | ||
4198 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4199 | if (t->to_supports_btrace != NULL) | |
4200 | return t->to_supports_btrace (); | |
4201 | ||
4202 | return 0; | |
4203 | } | |
4204 | ||
4205 | /* See target.h. */ | |
4206 | ||
4207 | struct btrace_target_info * | |
4208 | target_enable_btrace (ptid_t ptid) | |
4209 | { | |
4210 | struct target_ops *t; | |
4211 | ||
4212 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4213 | if (t->to_enable_btrace != NULL) | |
4214 | return t->to_enable_btrace (ptid); | |
4215 | ||
4216 | tcomplain (); | |
4217 | return NULL; | |
4218 | } | |
4219 | ||
4220 | /* See target.h. */ | |
4221 | ||
4222 | void | |
4223 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4224 | { | |
4225 | struct target_ops *t; | |
4226 | ||
4227 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4228 | if (t->to_disable_btrace != NULL) | |
4229 | return t->to_disable_btrace (btinfo); | |
4230 | ||
4231 | tcomplain (); | |
4232 | } | |
4233 | ||
4234 | /* See target.h. */ | |
4235 | ||
4236 | void | |
4237 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4238 | { | |
4239 | struct target_ops *t; | |
4240 | ||
4241 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4242 | if (t->to_teardown_btrace != NULL) | |
4243 | return t->to_teardown_btrace (btinfo); | |
4244 | ||
4245 | tcomplain (); | |
4246 | } | |
4247 | ||
4248 | /* See target.h. */ | |
4249 | ||
4250 | VEC (btrace_block_s) * | |
4251 | target_read_btrace (struct btrace_target_info *btinfo, | |
4252 | enum btrace_read_type type) | |
4253 | { | |
4254 | struct target_ops *t; | |
4255 | ||
4256 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4257 | if (t->to_read_btrace != NULL) | |
4258 | return t->to_read_btrace (btinfo, type); | |
4259 | ||
4260 | tcomplain (); | |
4261 | return NULL; | |
4262 | } | |
4263 | ||
d02ed0bb MM |
4264 | /* See target.h. */ |
4265 | ||
7c1687a9 MM |
4266 | void |
4267 | target_stop_recording (void) | |
4268 | { | |
4269 | struct target_ops *t; | |
4270 | ||
4271 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4272 | if (t->to_stop_recording != NULL) | |
4273 | { | |
4274 | t->to_stop_recording (); | |
4275 | return; | |
4276 | } | |
4277 | ||
4278 | /* This is optional. */ | |
4279 | } | |
4280 | ||
4281 | /* See target.h. */ | |
4282 | ||
d02ed0bb MM |
4283 | void |
4284 | target_info_record (void) | |
4285 | { | |
4286 | struct target_ops *t; | |
4287 | ||
4288 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4289 | if (t->to_info_record != NULL) | |
4290 | { | |
4291 | t->to_info_record (); | |
4292 | return; | |
4293 | } | |
4294 | ||
4295 | tcomplain (); | |
4296 | } | |
4297 | ||
4298 | /* See target.h. */ | |
4299 | ||
4300 | void | |
85e1311a | 4301 | target_save_record (const char *filename) |
d02ed0bb MM |
4302 | { |
4303 | struct target_ops *t; | |
4304 | ||
4305 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4306 | if (t->to_save_record != NULL) | |
4307 | { | |
4308 | t->to_save_record (filename); | |
4309 | return; | |
4310 | } | |
4311 | ||
4312 | tcomplain (); | |
4313 | } | |
4314 | ||
4315 | /* See target.h. */ | |
4316 | ||
4317 | int | |
4318 | target_supports_delete_record (void) | |
4319 | { | |
4320 | struct target_ops *t; | |
4321 | ||
4322 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4323 | if (t->to_delete_record != NULL) | |
4324 | return 1; | |
4325 | ||
4326 | return 0; | |
4327 | } | |
4328 | ||
4329 | /* See target.h. */ | |
4330 | ||
4331 | void | |
4332 | target_delete_record (void) | |
4333 | { | |
4334 | struct target_ops *t; | |
4335 | ||
4336 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4337 | if (t->to_delete_record != NULL) | |
4338 | { | |
4339 | t->to_delete_record (); | |
4340 | return; | |
4341 | } | |
4342 | ||
4343 | tcomplain (); | |
4344 | } | |
4345 | ||
4346 | /* See target.h. */ | |
4347 | ||
4348 | int | |
4349 | target_record_is_replaying (void) | |
4350 | { | |
4351 | struct target_ops *t; | |
4352 | ||
4353 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4354 | if (t->to_record_is_replaying != NULL) | |
4355 | return t->to_record_is_replaying (); | |
4356 | ||
4357 | return 0; | |
4358 | } | |
4359 | ||
4360 | /* See target.h. */ | |
4361 | ||
4362 | void | |
4363 | target_goto_record_begin (void) | |
4364 | { | |
4365 | struct target_ops *t; | |
4366 | ||
4367 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4368 | if (t->to_goto_record_begin != NULL) | |
4369 | { | |
4370 | t->to_goto_record_begin (); | |
4371 | return; | |
4372 | } | |
4373 | ||
4374 | tcomplain (); | |
4375 | } | |
4376 | ||
4377 | /* See target.h. */ | |
4378 | ||
4379 | void | |
4380 | target_goto_record_end (void) | |
4381 | { | |
4382 | struct target_ops *t; | |
4383 | ||
4384 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4385 | if (t->to_goto_record_end != NULL) | |
4386 | { | |
4387 | t->to_goto_record_end (); | |
4388 | return; | |
4389 | } | |
4390 | ||
4391 | tcomplain (); | |
4392 | } | |
4393 | ||
4394 | /* See target.h. */ | |
4395 | ||
4396 | void | |
4397 | target_goto_record (ULONGEST insn) | |
4398 | { | |
4399 | struct target_ops *t; | |
4400 | ||
4401 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4402 | if (t->to_goto_record != NULL) | |
4403 | { | |
4404 | t->to_goto_record (insn); | |
4405 | return; | |
4406 | } | |
4407 | ||
4408 | tcomplain (); | |
4409 | } | |
4410 | ||
67c86d06 MM |
4411 | /* See target.h. */ |
4412 | ||
4413 | void | |
4414 | target_insn_history (int size, int flags) | |
4415 | { | |
4416 | struct target_ops *t; | |
4417 | ||
4418 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4419 | if (t->to_insn_history != NULL) | |
4420 | { | |
4421 | t->to_insn_history (size, flags); | |
4422 | return; | |
4423 | } | |
4424 | ||
4425 | tcomplain (); | |
4426 | } | |
4427 | ||
4428 | /* See target.h. */ | |
4429 | ||
4430 | void | |
4431 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4432 | { | |
4433 | struct target_ops *t; | |
4434 | ||
4435 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4436 | if (t->to_insn_history_from != NULL) | |
4437 | { | |
4438 | t->to_insn_history_from (from, size, flags); | |
4439 | return; | |
4440 | } | |
4441 | ||
4442 | tcomplain (); | |
4443 | } | |
4444 | ||
4445 | /* See target.h. */ | |
4446 | ||
4447 | void | |
4448 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4449 | { | |
4450 | struct target_ops *t; | |
4451 | ||
4452 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4453 | if (t->to_insn_history_range != NULL) | |
4454 | { | |
4455 | t->to_insn_history_range (begin, end, flags); | |
4456 | return; | |
4457 | } | |
4458 | ||
4459 | tcomplain (); | |
4460 | } | |
4461 | ||
15984c13 MM |
4462 | /* See target.h. */ |
4463 | ||
4464 | void | |
4465 | target_call_history (int size, int flags) | |
4466 | { | |
4467 | struct target_ops *t; | |
4468 | ||
4469 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4470 | if (t->to_call_history != NULL) | |
4471 | { | |
4472 | t->to_call_history (size, flags); | |
4473 | return; | |
4474 | } | |
4475 | ||
4476 | tcomplain (); | |
4477 | } | |
4478 | ||
4479 | /* See target.h. */ | |
4480 | ||
4481 | void | |
4482 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4483 | { | |
4484 | struct target_ops *t; | |
4485 | ||
4486 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4487 | if (t->to_call_history_from != NULL) | |
4488 | { | |
4489 | t->to_call_history_from (begin, size, flags); | |
4490 | return; | |
4491 | } | |
4492 | ||
4493 | tcomplain (); | |
4494 | } | |
4495 | ||
4496 | /* See target.h. */ | |
4497 | ||
4498 | void | |
4499 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4500 | { | |
4501 | struct target_ops *t; | |
4502 | ||
4503 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4504 | if (t->to_call_history_range != NULL) | |
4505 | { | |
4506 | t->to_call_history_range (begin, end, flags); | |
4507 | return; | |
4508 | } | |
4509 | ||
4510 | tcomplain (); | |
4511 | } | |
4512 | ||
c906108c | 4513 | static void |
316f2060 | 4514 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 4515 | { |
316f2060 | 4516 | debug_target.to_prepare_to_store (regcache); |
c906108c | 4517 | |
96baa820 | 4518 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4519 | } |
4520 | ||
4521 | static int | |
961cb7b5 | 4522 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4523 | int write, struct mem_attrib *attrib, |
4524 | struct target_ops *target) | |
c906108c SS |
4525 | { |
4526 | int retval; | |
4527 | ||
c8e73a31 AC |
4528 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4529 | attrib, target); | |
c906108c | 4530 | |
96baa820 | 4531 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4532 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4533 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4534 | write ? "write" : "read", retval); |
c906108c | 4535 | |
c906108c SS |
4536 | if (retval > 0) |
4537 | { | |
4538 | int i; | |
4539 | ||
96baa820 | 4540 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4541 | for (i = 0; i < retval; i++) |
4542 | { | |
53b71562 | 4543 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4544 | { |
4545 | if (targetdebug < 2 && i > 0) | |
4546 | { | |
4547 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4548 | break; | |
4549 | } | |
4550 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4551 | } | |
2bc416ba | 4552 | |
96baa820 | 4553 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4554 | } |
4555 | } | |
4556 | ||
96baa820 | 4557 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4558 | |
4559 | return retval; | |
4560 | } | |
4561 | ||
4562 | static void | |
fba45db2 | 4563 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4564 | { |
4565 | debug_target.to_files_info (target); | |
4566 | ||
96baa820 | 4567 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4568 | } |
4569 | ||
4570 | static int | |
a6d9a66e UW |
4571 | debug_to_insert_breakpoint (struct gdbarch *gdbarch, |
4572 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4573 | { |
4574 | int retval; | |
4575 | ||
a6d9a66e | 4576 | retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt); |
c906108c | 4577 | |
96baa820 | 4578 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4579 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4580 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4581 | (unsigned long) retval); |
c906108c SS |
4582 | return retval; |
4583 | } | |
4584 | ||
4585 | static int | |
a6d9a66e UW |
4586 | debug_to_remove_breakpoint (struct gdbarch *gdbarch, |
4587 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4588 | { |
4589 | int retval; | |
4590 | ||
a6d9a66e | 4591 | retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt); |
c906108c | 4592 | |
96baa820 | 4593 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4594 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4595 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4596 | (unsigned long) retval); |
c906108c SS |
4597 | return retval; |
4598 | } | |
4599 | ||
ccaa32c7 GS |
4600 | static int |
4601 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
4602 | { | |
4603 | int retval; | |
4604 | ||
4605 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
4606 | ||
4607 | fprintf_unfiltered (gdb_stdlog, | |
4608 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4609 | (unsigned long) type, | |
4610 | (unsigned long) cnt, | |
4611 | (unsigned long) from_tty, | |
4612 | (unsigned long) retval); | |
4613 | return retval; | |
4614 | } | |
4615 | ||
e0d24f8d WZ |
4616 | static int |
4617 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
4618 | { | |
4619 | CORE_ADDR retval; | |
4620 | ||
4621 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
4622 | ||
4623 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4624 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4625 | core_addr_to_string (addr), (unsigned long) len, | |
4626 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4627 | return retval; |
4628 | } | |
4629 | ||
0cf6dd15 TJB |
4630 | static int |
4631 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
4632 | struct expression *cond) | |
4633 | { | |
4634 | int retval; | |
4635 | ||
3e43a32a MS |
4636 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
4637 | rw, cond); | |
0cf6dd15 TJB |
4638 | |
4639 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4640 | "target_can_accel_watchpoint_condition " |
4641 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4642 | core_addr_to_string (addr), len, rw, |
4643 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4644 | return retval; |
4645 | } | |
4646 | ||
ccaa32c7 GS |
4647 | static int |
4648 | debug_to_stopped_by_watchpoint (void) | |
4649 | { | |
4650 | int retval; | |
4651 | ||
4652 | retval = debug_target.to_stopped_by_watchpoint (); | |
4653 | ||
4654 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4655 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4656 | (unsigned long) retval); |
4657 | return retval; | |
4658 | } | |
4659 | ||
4aa7a7f5 JJ |
4660 | static int |
4661 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4662 | { |
4aa7a7f5 | 4663 | int retval; |
ccaa32c7 | 4664 | |
4aa7a7f5 | 4665 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4666 | |
4667 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4668 | "target_stopped_data_address ([%s]) = %ld\n", |
4669 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4670 | (unsigned long)retval); |
ccaa32c7 GS |
4671 | return retval; |
4672 | } | |
4673 | ||
5009afc5 AS |
4674 | static int |
4675 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4676 | CORE_ADDR addr, | |
4677 | CORE_ADDR start, int length) | |
4678 | { | |
4679 | int retval; | |
4680 | ||
4681 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4682 | start, length); | |
4683 | ||
4684 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4685 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4686 | core_addr_to_string (addr), core_addr_to_string (start), | |
4687 | length, retval); | |
5009afc5 AS |
4688 | return retval; |
4689 | } | |
4690 | ||
ccaa32c7 | 4691 | static int |
a6d9a66e UW |
4692 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
4693 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4694 | { |
4695 | int retval; | |
4696 | ||
a6d9a66e | 4697 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4698 | |
4699 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4700 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4701 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4702 | (unsigned long) retval); |
4703 | return retval; | |
4704 | } | |
4705 | ||
4706 | static int | |
a6d9a66e UW |
4707 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
4708 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4709 | { |
4710 | int retval; | |
4711 | ||
a6d9a66e | 4712 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4713 | |
4714 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4715 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4716 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4717 | (unsigned long) retval); |
4718 | return retval; | |
4719 | } | |
4720 | ||
4721 | static int | |
0cf6dd15 TJB |
4722 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
4723 | struct expression *cond) | |
ccaa32c7 GS |
4724 | { |
4725 | int retval; | |
4726 | ||
0cf6dd15 | 4727 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4728 | |
4729 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4730 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4731 | core_addr_to_string (addr), len, type, | |
4732 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4733 | return retval; |
4734 | } | |
4735 | ||
4736 | static int | |
0cf6dd15 TJB |
4737 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type, |
4738 | struct expression *cond) | |
ccaa32c7 GS |
4739 | { |
4740 | int retval; | |
4741 | ||
0cf6dd15 | 4742 | retval = debug_target.to_remove_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4743 | |
4744 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4745 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4746 | core_addr_to_string (addr), len, type, | |
4747 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4748 | return retval; |
4749 | } | |
4750 | ||
c906108c | 4751 | static void |
fba45db2 | 4752 | debug_to_terminal_init (void) |
c906108c SS |
4753 | { |
4754 | debug_target.to_terminal_init (); | |
4755 | ||
96baa820 | 4756 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4757 | } |
4758 | ||
4759 | static void | |
fba45db2 | 4760 | debug_to_terminal_inferior (void) |
c906108c SS |
4761 | { |
4762 | debug_target.to_terminal_inferior (); | |
4763 | ||
96baa820 | 4764 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4765 | } |
4766 | ||
4767 | static void | |
fba45db2 | 4768 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
4769 | { |
4770 | debug_target.to_terminal_ours_for_output (); | |
4771 | ||
96baa820 | 4772 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4773 | } |
4774 | ||
4775 | static void | |
fba45db2 | 4776 | debug_to_terminal_ours (void) |
c906108c SS |
4777 | { |
4778 | debug_target.to_terminal_ours (); | |
4779 | ||
96baa820 | 4780 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4781 | } |
4782 | ||
a790ad35 SC |
4783 | static void |
4784 | debug_to_terminal_save_ours (void) | |
4785 | { | |
4786 | debug_target.to_terminal_save_ours (); | |
4787 | ||
4788 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4789 | } | |
4790 | ||
c906108c | 4791 | static void |
503ebb2c | 4792 | debug_to_terminal_info (const char *arg, int from_tty) |
c906108c SS |
4793 | { |
4794 | debug_target.to_terminal_info (arg, from_tty); | |
4795 | ||
96baa820 | 4796 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4797 | from_tty); |
4798 | } | |
4799 | ||
c906108c | 4800 | static void |
fba45db2 | 4801 | debug_to_load (char *args, int from_tty) |
c906108c SS |
4802 | { |
4803 | debug_target.to_load (args, from_tty); | |
4804 | ||
96baa820 | 4805 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4806 | } |
4807 | ||
c906108c | 4808 | static void |
39f77062 | 4809 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 4810 | { |
39f77062 | 4811 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 4812 | |
96baa820 | 4813 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 4814 | PIDGET (ptid)); |
c906108c SS |
4815 | } |
4816 | ||
77b06cd7 | 4817 | static int |
fba45db2 | 4818 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 4819 | { |
77b06cd7 TJB |
4820 | int retval; |
4821 | ||
4822 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
4823 | ||
4824 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4825 | pid, retval); | |
c906108c | 4826 | |
77b06cd7 | 4827 | return retval; |
c906108c SS |
4828 | } |
4829 | ||
4830 | static int | |
fba45db2 | 4831 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 4832 | { |
c5aa993b | 4833 | int retval; |
c906108c SS |
4834 | |
4835 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
4836 | ||
96baa820 | 4837 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4838 | pid, retval); |
c906108c SS |
4839 | |
4840 | return retval; | |
4841 | } | |
4842 | ||
77b06cd7 | 4843 | static int |
fba45db2 | 4844 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 4845 | { |
77b06cd7 TJB |
4846 | int retval; |
4847 | ||
4848 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 4849 | |
77b06cd7 TJB |
4850 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4851 | pid, retval); | |
4852 | ||
4853 | return retval; | |
c906108c SS |
4854 | } |
4855 | ||
4856 | static int | |
fba45db2 | 4857 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 4858 | { |
c5aa993b | 4859 | int retval; |
c906108c SS |
4860 | |
4861 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
4862 | ||
96baa820 | 4863 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4864 | pid, retval); |
c906108c SS |
4865 | |
4866 | return retval; | |
4867 | } | |
4868 | ||
77b06cd7 | 4869 | static int |
fba45db2 | 4870 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 4871 | { |
77b06cd7 TJB |
4872 | int retval; |
4873 | ||
4874 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 4875 | |
77b06cd7 TJB |
4876 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4877 | pid, retval); | |
4878 | ||
4879 | return retval; | |
c906108c SS |
4880 | } |
4881 | ||
4882 | static int | |
fba45db2 | 4883 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 4884 | { |
c5aa993b | 4885 | int retval; |
c906108c SS |
4886 | |
4887 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
4888 | ||
96baa820 | 4889 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4890 | pid, retval); |
c906108c SS |
4891 | |
4892 | return retval; | |
4893 | } | |
4894 | ||
c906108c | 4895 | static int |
fba45db2 | 4896 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 4897 | { |
c5aa993b | 4898 | int has_exited; |
c906108c SS |
4899 | |
4900 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
4901 | ||
96baa820 | 4902 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4903 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4904 | |
4905 | return has_exited; | |
4906 | } | |
4907 | ||
c906108c | 4908 | static int |
fba45db2 | 4909 | debug_to_can_run (void) |
c906108c SS |
4910 | { |
4911 | int retval; | |
4912 | ||
4913 | retval = debug_target.to_can_run (); | |
4914 | ||
96baa820 | 4915 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4916 | |
4917 | return retval; | |
4918 | } | |
4919 | ||
c2250ad1 UW |
4920 | static struct gdbarch * |
4921 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4922 | { | |
4923 | struct gdbarch *retval; | |
4924 | ||
4925 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4926 | ||
3e43a32a MS |
4927 | fprintf_unfiltered (gdb_stdlog, |
4928 | "target_thread_architecture (%s) = %s [%s]\n", | |
4929 | target_pid_to_str (ptid), | |
4930 | host_address_to_string (retval), | |
c2250ad1 UW |
4931 | gdbarch_bfd_arch_info (retval)->printable_name); |
4932 | return retval; | |
4933 | } | |
4934 | ||
c906108c | 4935 | static void |
94cc34af | 4936 | debug_to_stop (ptid_t ptid) |
c906108c | 4937 | { |
94cc34af | 4938 | debug_target.to_stop (ptid); |
c906108c | 4939 | |
94cc34af PA |
4940 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4941 | target_pid_to_str (ptid)); | |
c906108c SS |
4942 | } |
4943 | ||
96baa820 JM |
4944 | static void |
4945 | debug_to_rcmd (char *command, | |
d9fcf2fb | 4946 | struct ui_file *outbuf) |
96baa820 JM |
4947 | { |
4948 | debug_target.to_rcmd (command, outbuf); | |
4949 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
4950 | } | |
4951 | ||
c906108c | 4952 | static char * |
fba45db2 | 4953 | debug_to_pid_to_exec_file (int pid) |
c906108c | 4954 | { |
c5aa993b | 4955 | char *exec_file; |
c906108c SS |
4956 | |
4957 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
4958 | ||
96baa820 | 4959 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4960 | pid, exec_file); |
c906108c SS |
4961 | |
4962 | return exec_file; | |
4963 | } | |
4964 | ||
c906108c | 4965 | static void |
fba45db2 | 4966 | setup_target_debug (void) |
c906108c SS |
4967 | { |
4968 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4969 | ||
4970 | current_target.to_open = debug_to_open; | |
c906108c | 4971 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4972 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4973 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4974 | current_target.to_files_info = debug_to_files_info; |
4975 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4976 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4977 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4978 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4979 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4980 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4981 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4982 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4983 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4984 | current_target.to_watchpoint_addr_within_range |
4985 | = debug_to_watchpoint_addr_within_range; | |
4986 | current_target.to_region_ok_for_hw_watchpoint | |
4987 | = debug_to_region_ok_for_hw_watchpoint; | |
4988 | current_target.to_can_accel_watchpoint_condition | |
4989 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4990 | current_target.to_terminal_init = debug_to_terminal_init; |
4991 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4992 | current_target.to_terminal_ours_for_output |
4993 | = debug_to_terminal_ours_for_output; | |
c906108c | 4994 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4995 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4996 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4997 | current_target.to_load = debug_to_load; |
c906108c | 4998 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4999 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
5000 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
5001 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
5002 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
5003 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
5004 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 5005 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 5006 | current_target.to_can_run = debug_to_can_run; |
c906108c | 5007 | current_target.to_stop = debug_to_stop; |
96baa820 | 5008 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 5009 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 5010 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 5011 | } |
c906108c | 5012 | \f |
c5aa993b JM |
5013 | |
5014 | static char targ_desc[] = | |
3e43a32a MS |
5015 | "Names of targets and files being debugged.\nShows the entire \ |
5016 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
5017 | core-file, and process, if any), as well as the symbol file name."; |
5018 | ||
96baa820 JM |
5019 | static void |
5020 | do_monitor_command (char *cmd, | |
5021 | int from_tty) | |
5022 | { | |
2b5fe715 AC |
5023 | if ((current_target.to_rcmd |
5024 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 5025 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
5026 | && (debug_target.to_rcmd |
5027 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 5028 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
5029 | target_rcmd (cmd, gdb_stdtarg); |
5030 | } | |
5031 | ||
87680a14 JB |
5032 | /* Print the name of each layers of our target stack. */ |
5033 | ||
5034 | static void | |
5035 | maintenance_print_target_stack (char *cmd, int from_tty) | |
5036 | { | |
5037 | struct target_ops *t; | |
5038 | ||
5039 | printf_filtered (_("The current target stack is:\n")); | |
5040 | ||
5041 | for (t = target_stack; t != NULL; t = t->beneath) | |
5042 | { | |
5043 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
5044 | } | |
5045 | } | |
5046 | ||
c6ebd6cf VP |
5047 | /* Controls if async mode is permitted. */ |
5048 | int target_async_permitted = 0; | |
5049 | ||
5050 | /* The set command writes to this variable. If the inferior is | |
5051 | executing, linux_nat_async_permitted is *not* updated. */ | |
5052 | static int target_async_permitted_1 = 0; | |
5053 | ||
5054 | static void | |
9401a810 PA |
5055 | set_target_async_command (char *args, int from_tty, |
5056 | struct cmd_list_element *c) | |
c6ebd6cf | 5057 | { |
c35b1492 | 5058 | if (have_live_inferiors ()) |
c6ebd6cf VP |
5059 | { |
5060 | target_async_permitted_1 = target_async_permitted; | |
5061 | error (_("Cannot change this setting while the inferior is running.")); | |
5062 | } | |
5063 | ||
5064 | target_async_permitted = target_async_permitted_1; | |
5065 | } | |
5066 | ||
5067 | static void | |
9401a810 PA |
5068 | show_target_async_command (struct ui_file *file, int from_tty, |
5069 | struct cmd_list_element *c, | |
5070 | const char *value) | |
c6ebd6cf | 5071 | { |
3e43a32a MS |
5072 | fprintf_filtered (file, |
5073 | _("Controlling the inferior in " | |
5074 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5075 | } |
5076 | ||
d914c394 SS |
5077 | /* Temporary copies of permission settings. */ |
5078 | ||
5079 | static int may_write_registers_1 = 1; | |
5080 | static int may_write_memory_1 = 1; | |
5081 | static int may_insert_breakpoints_1 = 1; | |
5082 | static int may_insert_tracepoints_1 = 1; | |
5083 | static int may_insert_fast_tracepoints_1 = 1; | |
5084 | static int may_stop_1 = 1; | |
5085 | ||
5086 | /* Make the user-set values match the real values again. */ | |
5087 | ||
5088 | void | |
5089 | update_target_permissions (void) | |
5090 | { | |
5091 | may_write_registers_1 = may_write_registers; | |
5092 | may_write_memory_1 = may_write_memory; | |
5093 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5094 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5095 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5096 | may_stop_1 = may_stop; | |
5097 | } | |
5098 | ||
5099 | /* The one function handles (most of) the permission flags in the same | |
5100 | way. */ | |
5101 | ||
5102 | static void | |
5103 | set_target_permissions (char *args, int from_tty, | |
5104 | struct cmd_list_element *c) | |
5105 | { | |
5106 | if (target_has_execution) | |
5107 | { | |
5108 | update_target_permissions (); | |
5109 | error (_("Cannot change this setting while the inferior is running.")); | |
5110 | } | |
5111 | ||
5112 | /* Make the real values match the user-changed values. */ | |
5113 | may_write_registers = may_write_registers_1; | |
5114 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5115 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5116 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5117 | may_stop = may_stop_1; | |
5118 | update_observer_mode (); | |
5119 | } | |
5120 | ||
5121 | /* Set memory write permission independently of observer mode. */ | |
5122 | ||
5123 | static void | |
5124 | set_write_memory_permission (char *args, int from_tty, | |
5125 | struct cmd_list_element *c) | |
5126 | { | |
5127 | /* Make the real values match the user-changed values. */ | |
5128 | may_write_memory = may_write_memory_1; | |
5129 | update_observer_mode (); | |
5130 | } | |
5131 | ||
5132 | ||
c906108c | 5133 | void |
fba45db2 | 5134 | initialize_targets (void) |
c906108c SS |
5135 | { |
5136 | init_dummy_target (); | |
5137 | push_target (&dummy_target); | |
5138 | ||
5139 | add_info ("target", target_info, targ_desc); | |
5140 | add_info ("files", target_info, targ_desc); | |
5141 | ||
ccce17b0 | 5142 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5143 | Set target debugging."), _("\ |
5144 | Show target debugging."), _("\ | |
333dabeb DJ |
5145 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5146 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5147 | command."), |
ccce17b0 YQ |
5148 | NULL, |
5149 | show_targetdebug, | |
5150 | &setdebuglist, &showdebuglist); | |
3a11626d | 5151 | |
2bc416ba | 5152 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5153 | &trust_readonly, _("\ |
5154 | Set mode for reading from readonly sections."), _("\ | |
5155 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5156 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5157 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5158 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5159 | NULL, |
920d2a44 | 5160 | show_trust_readonly, |
e707bbc2 | 5161 | &setlist, &showlist); |
96baa820 JM |
5162 | |
5163 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5164 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5165 | |
87680a14 JB |
5166 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5167 | _("Print the name of each layer of the internal target stack."), | |
5168 | &maintenanceprintlist); | |
5169 | ||
c6ebd6cf VP |
5170 | add_setshow_boolean_cmd ("target-async", no_class, |
5171 | &target_async_permitted_1, _("\ | |
5172 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5173 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5174 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5175 | set_target_async_command, |
5176 | show_target_async_command, | |
c6ebd6cf VP |
5177 | &setlist, |
5178 | &showlist); | |
5179 | ||
4e5d721f | 5180 | add_setshow_boolean_cmd ("stack-cache", class_support, |
9cf1b572 | 5181 | &stack_cache_enabled_p_1, _("\ |
4e5d721f DE |
5182 | Set cache use for stack access."), _("\ |
5183 | Show cache use for stack access."), _("\ | |
5184 | When on, use the data cache for all stack access, regardless of any\n\ | |
5185 | configured memory regions. This improves remote performance significantly.\n\ | |
5186 | By default, caching for stack access is on."), | |
5187 | set_stack_cache_enabled_p, | |
5188 | show_stack_cache_enabled_p, | |
5189 | &setlist, &showlist); | |
5190 | ||
d914c394 SS |
5191 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5192 | &may_write_registers_1, _("\ | |
5193 | Set permission to write into registers."), _("\ | |
5194 | Show permission to write into registers."), _("\ | |
5195 | When this permission is on, GDB may write into the target's registers.\n\ | |
5196 | Otherwise, any sort of write attempt will result in an error."), | |
5197 | set_target_permissions, NULL, | |
5198 | &setlist, &showlist); | |
5199 | ||
5200 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5201 | &may_write_memory_1, _("\ | |
5202 | Set permission to write into target memory."), _("\ | |
5203 | Show permission to write into target memory."), _("\ | |
5204 | When this permission is on, GDB may write into the target's memory.\n\ | |
5205 | Otherwise, any sort of write attempt will result in an error."), | |
5206 | set_write_memory_permission, NULL, | |
5207 | &setlist, &showlist); | |
5208 | ||
5209 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5210 | &may_insert_breakpoints_1, _("\ | |
5211 | Set permission to insert breakpoints in the target."), _("\ | |
5212 | Show permission to insert breakpoints in the target."), _("\ | |
5213 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5214 | Otherwise, any sort of insertion attempt will result in an error."), | |
5215 | set_target_permissions, NULL, | |
5216 | &setlist, &showlist); | |
5217 | ||
5218 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5219 | &may_insert_tracepoints_1, _("\ | |
5220 | Set permission to insert tracepoints in the target."), _("\ | |
5221 | Show permission to insert tracepoints in the target."), _("\ | |
5222 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5223 | Otherwise, any sort of insertion attempt will result in an error."), | |
5224 | set_target_permissions, NULL, | |
5225 | &setlist, &showlist); | |
5226 | ||
5227 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5228 | &may_insert_fast_tracepoints_1, _("\ | |
5229 | Set permission to insert fast tracepoints in the target."), _("\ | |
5230 | Show permission to insert fast tracepoints in the target."), _("\ | |
5231 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5232 | Otherwise, any sort of insertion attempt will result in an error."), | |
5233 | set_target_permissions, NULL, | |
5234 | &setlist, &showlist); | |
5235 | ||
5236 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5237 | &may_stop_1, _("\ | |
5238 | Set permission to interrupt or signal the target."), _("\ | |
5239 | Show permission to interrupt or signal the target."), _("\ | |
5240 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5241 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5242 | set_target_permissions, NULL, | |
5243 | &setlist, &showlist); | |
5244 | ||
5245 | ||
8add0441 | 5246 | target_dcache = dcache_init (); |
c906108c | 5247 | } |