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