Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
28e7fd62 | 3 | Copyright (C) 1990-2013 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <errno.h> | |
c906108c SS |
24 | #include "gdb_string.h" |
25 | #include "target.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "symtab.h" | |
28 | #include "inferior.h" | |
29 | #include "bfd.h" | |
30 | #include "symfile.h" | |
31 | #include "objfiles.h" | |
4930751a | 32 | #include "dcache.h" |
c906108c | 33 | #include <signal.h> |
4e052eda | 34 | #include "regcache.h" |
0088c768 | 35 | #include "gdb_assert.h" |
b6591e8b | 36 | #include "gdbcore.h" |
9e35dae4 | 37 | #include "exceptions.h" |
424163ea | 38 | #include "target-descriptions.h" |
e1ac3328 | 39 | #include "gdbthread.h" |
b9db4ced | 40 | #include "solib.h" |
07b82ea5 | 41 | #include "exec.h" |
edb3359d | 42 | #include "inline-frame.h" |
2f4d8875 | 43 | #include "tracepoint.h" |
7313baad | 44 | #include "gdb/fileio.h" |
8ffcbaaf | 45 | #include "agent.h" |
c906108c | 46 | |
a14ed312 | 47 | static void target_info (char *, int); |
c906108c | 48 | |
503ebb2c | 49 | static void default_terminal_info (const char *, int); |
c906108c | 50 | |
5009afc5 AS |
51 | static int default_watchpoint_addr_within_range (struct target_ops *, |
52 | CORE_ADDR, CORE_ADDR, int); | |
53 | ||
e0d24f8d WZ |
54 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
55 | ||
c25c4a8b | 56 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 57 | |
a14ed312 | 58 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 59 | |
a14ed312 | 60 | static int return_zero (void); |
c906108c | 61 | |
a14ed312 | 62 | static int return_one (void); |
c906108c | 63 | |
ccaa32c7 GS |
64 | static int return_minus_one (void); |
65 | ||
a14ed312 | 66 | void target_ignore (void); |
c906108c | 67 | |
a14ed312 | 68 | static void target_command (char *, int); |
c906108c | 69 | |
a14ed312 | 70 | static struct target_ops *find_default_run_target (char *); |
c906108c | 71 | |
4b8a223f | 72 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 73 | enum target_object object, |
1b0ba102 AC |
74 | const char *annex, gdb_byte *readbuf, |
75 | const gdb_byte *writebuf, | |
8aa91c1e | 76 | ULONGEST offset, LONGEST len); |
0088c768 | 77 | |
cf7a04e8 DJ |
78 | static LONGEST current_xfer_partial (struct target_ops *ops, |
79 | enum target_object object, | |
80 | const char *annex, gdb_byte *readbuf, | |
81 | const gdb_byte *writebuf, | |
82 | ULONGEST offset, LONGEST len); | |
c906108c | 83 | |
cf7a04e8 DJ |
84 | static LONGEST target_xfer_partial (struct target_ops *ops, |
85 | enum target_object object, | |
86 | const char *annex, | |
87 | void *readbuf, const void *writebuf, | |
88 | ULONGEST offset, LONGEST len); | |
c906108c | 89 | |
c2250ad1 UW |
90 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
91 | ptid_t ptid); | |
92 | ||
a14ed312 | 93 | static void init_dummy_target (void); |
c906108c | 94 | |
aa869812 AC |
95 | static struct target_ops debug_target; |
96 | ||
a14ed312 | 97 | static void debug_to_open (char *, int); |
c906108c | 98 | |
316f2060 | 99 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 100 | |
a14ed312 | 101 | static void debug_to_files_info (struct target_ops *); |
c906108c | 102 | |
a6d9a66e UW |
103 | static int debug_to_insert_breakpoint (struct gdbarch *, |
104 | struct bp_target_info *); | |
c906108c | 105 | |
a6d9a66e UW |
106 | static int debug_to_remove_breakpoint (struct gdbarch *, |
107 | struct bp_target_info *); | |
c906108c | 108 | |
ccaa32c7 GS |
109 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
110 | ||
a6d9a66e UW |
111 | static int debug_to_insert_hw_breakpoint (struct gdbarch *, |
112 | struct bp_target_info *); | |
ccaa32c7 | 113 | |
a6d9a66e UW |
114 | static int debug_to_remove_hw_breakpoint (struct gdbarch *, |
115 | struct bp_target_info *); | |
ccaa32c7 | 116 | |
0cf6dd15 TJB |
117 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int, |
118 | struct expression *); | |
ccaa32c7 | 119 | |
0cf6dd15 TJB |
120 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int, |
121 | struct expression *); | |
ccaa32c7 GS |
122 | |
123 | static int debug_to_stopped_by_watchpoint (void); | |
124 | ||
4aa7a7f5 | 125 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 126 | |
5009afc5 AS |
127 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
128 | CORE_ADDR, CORE_ADDR, int); | |
129 | ||
e0d24f8d WZ |
130 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
131 | ||
0cf6dd15 TJB |
132 | static int debug_to_can_accel_watchpoint_condition (CORE_ADDR, int, int, |
133 | struct expression *); | |
134 | ||
a14ed312 | 135 | static void debug_to_terminal_init (void); |
c906108c | 136 | |
a14ed312 | 137 | static void debug_to_terminal_inferior (void); |
c906108c | 138 | |
a14ed312 | 139 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 140 | |
a790ad35 SC |
141 | static void debug_to_terminal_save_ours (void); |
142 | ||
a14ed312 | 143 | static void debug_to_terminal_ours (void); |
c906108c | 144 | |
a14ed312 | 145 | static void debug_to_load (char *, int); |
c906108c | 146 | |
a14ed312 | 147 | static int debug_to_can_run (void); |
c906108c | 148 | |
94cc34af | 149 | static void debug_to_stop (ptid_t); |
c906108c | 150 | |
c906108c | 151 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 152 | array; the current index into the array; the allocated size of the |
c906108c SS |
153 | array. */ |
154 | struct target_ops **target_structs; | |
155 | unsigned target_struct_size; | |
c906108c SS |
156 | unsigned target_struct_allocsize; |
157 | #define DEFAULT_ALLOCSIZE 10 | |
158 | ||
159 | /* The initial current target, so that there is always a semi-valid | |
160 | current target. */ | |
161 | ||
162 | static struct target_ops dummy_target; | |
163 | ||
164 | /* Top of target stack. */ | |
165 | ||
258b763a | 166 | static struct target_ops *target_stack; |
c906108c SS |
167 | |
168 | /* The target structure we are currently using to talk to a process | |
169 | or file or whatever "inferior" we have. */ | |
170 | ||
171 | struct target_ops current_target; | |
172 | ||
173 | /* Command list for target. */ | |
174 | ||
175 | static struct cmd_list_element *targetlist = NULL; | |
176 | ||
cf7a04e8 DJ |
177 | /* Nonzero if we should trust readonly sections from the |
178 | executable when reading memory. */ | |
179 | ||
180 | static int trust_readonly = 0; | |
181 | ||
8defab1a DJ |
182 | /* Nonzero if we should show true memory content including |
183 | memory breakpoint inserted by gdb. */ | |
184 | ||
185 | static int show_memory_breakpoints = 0; | |
186 | ||
d914c394 SS |
187 | /* These globals control whether GDB attempts to perform these |
188 | operations; they are useful for targets that need to prevent | |
189 | inadvertant disruption, such as in non-stop mode. */ | |
190 | ||
191 | int may_write_registers = 1; | |
192 | ||
193 | int may_write_memory = 1; | |
194 | ||
195 | int may_insert_breakpoints = 1; | |
196 | ||
197 | int may_insert_tracepoints = 1; | |
198 | ||
199 | int may_insert_fast_tracepoints = 1; | |
200 | ||
201 | int may_stop = 1; | |
202 | ||
c906108c SS |
203 | /* Non-zero if we want to see trace of target level stuff. */ |
204 | ||
ccce17b0 | 205 | static unsigned int targetdebug = 0; |
920d2a44 AC |
206 | static void |
207 | show_targetdebug (struct ui_file *file, int from_tty, | |
208 | struct cmd_list_element *c, const char *value) | |
209 | { | |
210 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
211 | } | |
c906108c | 212 | |
a14ed312 | 213 | static void setup_target_debug (void); |
c906108c | 214 | |
4e5d721f DE |
215 | /* The option sets this. */ |
216 | static int stack_cache_enabled_p_1 = 1; | |
217 | /* And set_stack_cache_enabled_p updates this. | |
218 | The reason for the separation is so that we don't flush the cache for | |
219 | on->on transitions. */ | |
220 | static int stack_cache_enabled_p = 1; | |
221 | ||
222 | /* This is called *after* the stack-cache has been set. | |
223 | Flush the cache for off->on and on->off transitions. | |
224 | There's no real need to flush the cache for on->off transitions, | |
225 | except cleanliness. */ | |
226 | ||
227 | static void | |
228 | set_stack_cache_enabled_p (char *args, int from_tty, | |
229 | struct cmd_list_element *c) | |
230 | { | |
231 | if (stack_cache_enabled_p != stack_cache_enabled_p_1) | |
232 | target_dcache_invalidate (); | |
233 | ||
234 | stack_cache_enabled_p = stack_cache_enabled_p_1; | |
235 | } | |
236 | ||
237 | static void | |
238 | show_stack_cache_enabled_p (struct ui_file *file, int from_tty, | |
239 | struct cmd_list_element *c, const char *value) | |
240 | { | |
241 | fprintf_filtered (file, _("Cache use for stack accesses is %s.\n"), value); | |
242 | } | |
243 | ||
244 | /* Cache of memory operations, to speed up remote access. */ | |
245 | static DCACHE *target_dcache; | |
246 | ||
247 | /* Invalidate the target dcache. */ | |
248 | ||
249 | void | |
250 | target_dcache_invalidate (void) | |
251 | { | |
252 | dcache_invalidate (target_dcache); | |
253 | } | |
4930751a | 254 | |
c906108c SS |
255 | /* The user just typed 'target' without the name of a target. */ |
256 | ||
c906108c | 257 | static void |
fba45db2 | 258 | target_command (char *arg, int from_tty) |
c906108c SS |
259 | { |
260 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
261 | gdb_stdout); | |
262 | } | |
263 | ||
c35b1492 PA |
264 | /* Default target_has_* methods for process_stratum targets. */ |
265 | ||
266 | int | |
267 | default_child_has_all_memory (struct target_ops *ops) | |
268 | { | |
269 | /* If no inferior selected, then we can't read memory here. */ | |
270 | if (ptid_equal (inferior_ptid, null_ptid)) | |
271 | return 0; | |
272 | ||
273 | return 1; | |
274 | } | |
275 | ||
276 | int | |
277 | default_child_has_memory (struct target_ops *ops) | |
278 | { | |
279 | /* If no inferior selected, then we can't read memory here. */ | |
280 | if (ptid_equal (inferior_ptid, null_ptid)) | |
281 | return 0; | |
282 | ||
283 | return 1; | |
284 | } | |
285 | ||
286 | int | |
287 | default_child_has_stack (struct target_ops *ops) | |
288 | { | |
289 | /* If no inferior selected, there's no stack. */ | |
290 | if (ptid_equal (inferior_ptid, null_ptid)) | |
291 | return 0; | |
292 | ||
293 | return 1; | |
294 | } | |
295 | ||
296 | int | |
297 | default_child_has_registers (struct target_ops *ops) | |
298 | { | |
299 | /* Can't read registers from no inferior. */ | |
300 | if (ptid_equal (inferior_ptid, null_ptid)) | |
301 | return 0; | |
302 | ||
303 | return 1; | |
304 | } | |
305 | ||
306 | int | |
aeaec162 | 307 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
308 | { |
309 | /* If there's no thread selected, then we can't make it run through | |
310 | hoops. */ | |
aeaec162 | 311 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
312 | return 0; |
313 | ||
314 | return 1; | |
315 | } | |
316 | ||
317 | ||
318 | int | |
319 | target_has_all_memory_1 (void) | |
320 | { | |
321 | struct target_ops *t; | |
322 | ||
323 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
324 | if (t->to_has_all_memory (t)) | |
325 | return 1; | |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
330 | int | |
331 | target_has_memory_1 (void) | |
332 | { | |
333 | struct target_ops *t; | |
334 | ||
335 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
336 | if (t->to_has_memory (t)) | |
337 | return 1; | |
338 | ||
339 | return 0; | |
340 | } | |
341 | ||
342 | int | |
343 | target_has_stack_1 (void) | |
344 | { | |
345 | struct target_ops *t; | |
346 | ||
347 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
348 | if (t->to_has_stack (t)) | |
349 | return 1; | |
350 | ||
351 | return 0; | |
352 | } | |
353 | ||
354 | int | |
355 | target_has_registers_1 (void) | |
356 | { | |
357 | struct target_ops *t; | |
358 | ||
359 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
360 | if (t->to_has_registers (t)) | |
361 | return 1; | |
362 | ||
363 | return 0; | |
364 | } | |
365 | ||
366 | int | |
aeaec162 | 367 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
368 | { |
369 | struct target_ops *t; | |
370 | ||
371 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 372 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
373 | return 1; |
374 | ||
375 | return 0; | |
376 | } | |
377 | ||
aeaec162 TT |
378 | int |
379 | target_has_execution_current (void) | |
380 | { | |
381 | return target_has_execution_1 (inferior_ptid); | |
382 | } | |
383 | ||
c22a2b88 TT |
384 | /* Complete initialization of T. This ensures that various fields in |
385 | T are set, if needed by the target implementation. */ | |
c906108c SS |
386 | |
387 | void | |
c22a2b88 | 388 | complete_target_initialization (struct target_ops *t) |
c906108c | 389 | { |
0088c768 | 390 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
391 | if (t->to_xfer_partial == NULL) |
392 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 393 | |
c35b1492 PA |
394 | if (t->to_has_all_memory == NULL) |
395 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
396 | ||
397 | if (t->to_has_memory == NULL) | |
398 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
399 | ||
400 | if (t->to_has_stack == NULL) | |
401 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
402 | ||
403 | if (t->to_has_registers == NULL) | |
404 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
405 | ||
406 | if (t->to_has_execution == NULL) | |
aeaec162 | 407 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
c22a2b88 TT |
408 | } |
409 | ||
410 | /* Add possible target architecture T to the list and add a new | |
411 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
412 | completer if not NULL. */ | |
413 | ||
414 | void | |
415 | add_target_with_completer (struct target_ops *t, | |
416 | completer_ftype *completer) | |
417 | { | |
418 | struct cmd_list_element *c; | |
419 | ||
420 | complete_target_initialization (t); | |
c35b1492 | 421 | |
c906108c SS |
422 | if (!target_structs) |
423 | { | |
424 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
425 | target_structs = (struct target_ops **) xmalloc | |
426 | (target_struct_allocsize * sizeof (*target_structs)); | |
427 | } | |
428 | if (target_struct_size >= target_struct_allocsize) | |
429 | { | |
430 | target_struct_allocsize *= 2; | |
431 | target_structs = (struct target_ops **) | |
c5aa993b JM |
432 | xrealloc ((char *) target_structs, |
433 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
434 | } |
435 | target_structs[target_struct_size++] = t; | |
c906108c SS |
436 | |
437 | if (targetlist == NULL) | |
1bedd215 AC |
438 | add_prefix_cmd ("target", class_run, target_command, _("\ |
439 | Connect to a target machine or process.\n\ | |
c906108c SS |
440 | The first argument is the type or protocol of the target machine.\n\ |
441 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
442 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 443 | `help target ' followed by the protocol name."), |
c906108c | 444 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
445 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
446 | &targetlist); | |
447 | if (completer != NULL) | |
448 | set_cmd_completer (c, completer); | |
449 | } | |
450 | ||
451 | /* Add a possible target architecture to the list. */ | |
452 | ||
453 | void | |
454 | add_target (struct target_ops *t) | |
455 | { | |
456 | add_target_with_completer (t, NULL); | |
c906108c SS |
457 | } |
458 | ||
b48d48eb MM |
459 | /* See target.h. */ |
460 | ||
461 | void | |
462 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
463 | { | |
464 | struct cmd_list_element *c; | |
465 | char *alt; | |
466 | ||
467 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
468 | see PR cli/15104. */ | |
469 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
470 | alt = xstrprintf ("target %s", t->to_shortname); | |
471 | deprecate_cmd (c, alt); | |
472 | } | |
473 | ||
c906108c SS |
474 | /* Stub functions */ |
475 | ||
476 | void | |
fba45db2 | 477 | target_ignore (void) |
c906108c SS |
478 | { |
479 | } | |
480 | ||
7d85a9c0 JB |
481 | void |
482 | target_kill (void) | |
483 | { | |
484 | struct target_ops *t; | |
485 | ||
486 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
487 | if (t->to_kill != NULL) | |
488 | { | |
489 | if (targetdebug) | |
490 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
491 | ||
492 | t->to_kill (t); | |
493 | return; | |
494 | } | |
495 | ||
496 | noprocess (); | |
497 | } | |
498 | ||
11cf8741 JM |
499 | void |
500 | target_load (char *arg, int from_tty) | |
501 | { | |
4e5d721f | 502 | target_dcache_invalidate (); |
11cf8741 JM |
503 | (*current_target.to_load) (arg, from_tty); |
504 | } | |
505 | ||
947b8855 PA |
506 | void |
507 | target_create_inferior (char *exec_file, char *args, | |
508 | char **env, int from_tty) | |
136d6dae VP |
509 | { |
510 | struct target_ops *t; | |
5d502164 | 511 | |
136d6dae VP |
512 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
513 | { | |
514 | if (t->to_create_inferior != NULL) | |
515 | { | |
516 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
517 | if (targetdebug) |
518 | fprintf_unfiltered (gdb_stdlog, | |
519 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
520 | exec_file, args, from_tty); | |
136d6dae VP |
521 | return; |
522 | } | |
523 | } | |
524 | ||
525 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 526 | _("could not find a target to create inferior")); |
136d6dae VP |
527 | } |
528 | ||
d9d2d8b6 PA |
529 | void |
530 | target_terminal_inferior (void) | |
531 | { | |
532 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 533 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
534 | this point the target is not async yet. However, if sync_execution |
535 | is not set, we know it will become async prior to resume. */ | |
536 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
537 | return; |
538 | ||
539 | /* If GDB is resuming the inferior in the foreground, install | |
540 | inferior's terminal modes. */ | |
541 | (*current_target.to_terminal_inferior) (); | |
542 | } | |
136d6dae | 543 | |
c906108c | 544 | static int |
fba45db2 KB |
545 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
546 | struct target_ops *t) | |
c906108c | 547 | { |
c378eb4e MS |
548 | errno = EIO; /* Can't read/write this location. */ |
549 | return 0; /* No bytes handled. */ | |
c906108c SS |
550 | } |
551 | ||
552 | static void | |
fba45db2 | 553 | tcomplain (void) |
c906108c | 554 | { |
8a3fe4f8 | 555 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
556 | current_target.to_shortname); |
557 | } | |
558 | ||
559 | void | |
fba45db2 | 560 | noprocess (void) |
c906108c | 561 | { |
8a3fe4f8 | 562 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
563 | } |
564 | ||
c906108c | 565 | static void |
503ebb2c | 566 | default_terminal_info (const char *args, int from_tty) |
c906108c | 567 | { |
a3f17187 | 568 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
569 | } |
570 | ||
0ef643c8 JB |
571 | /* A default implementation for the to_get_ada_task_ptid target method. |
572 | ||
573 | This function builds the PTID by using both LWP and TID as part of | |
574 | the PTID lwp and tid elements. The pid used is the pid of the | |
575 | inferior_ptid. */ | |
576 | ||
2c0b251b | 577 | static ptid_t |
0ef643c8 JB |
578 | default_get_ada_task_ptid (long lwp, long tid) |
579 | { | |
580 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
581 | } | |
582 | ||
32231432 PA |
583 | static enum exec_direction_kind |
584 | default_execution_direction (void) | |
585 | { | |
586 | if (!target_can_execute_reverse) | |
587 | return EXEC_FORWARD; | |
588 | else if (!target_can_async_p ()) | |
589 | return EXEC_FORWARD; | |
590 | else | |
591 | gdb_assert_not_reached ("\ | |
592 | to_execution_direction must be implemented for reverse async"); | |
593 | } | |
594 | ||
7998dfc3 AC |
595 | /* Go through the target stack from top to bottom, copying over zero |
596 | entries in current_target, then filling in still empty entries. In | |
597 | effect, we are doing class inheritance through the pushed target | |
598 | vectors. | |
599 | ||
600 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
601 | is currently implemented, is that it discards any knowledge of | |
602 | which target an inherited method originally belonged to. | |
603 | Consequently, new new target methods should instead explicitly and | |
604 | locally search the target stack for the target that can handle the | |
605 | request. */ | |
c906108c SS |
606 | |
607 | static void | |
7998dfc3 | 608 | update_current_target (void) |
c906108c | 609 | { |
7998dfc3 AC |
610 | struct target_ops *t; |
611 | ||
08d8bcd7 | 612 | /* First, reset current's contents. */ |
7998dfc3 AC |
613 | memset (¤t_target, 0, sizeof (current_target)); |
614 | ||
615 | #define INHERIT(FIELD, TARGET) \ | |
616 | if (!current_target.FIELD) \ | |
617 | current_target.FIELD = (TARGET)->FIELD | |
618 | ||
619 | for (t = target_stack; t; t = t->beneath) | |
620 | { | |
621 | INHERIT (to_shortname, t); | |
622 | INHERIT (to_longname, t); | |
623 | INHERIT (to_doc, t); | |
b52323fa UW |
624 | /* Do not inherit to_open. */ |
625 | /* Do not inherit to_close. */ | |
136d6dae | 626 | /* Do not inherit to_attach. */ |
7998dfc3 | 627 | INHERIT (to_post_attach, t); |
dc177b7a | 628 | INHERIT (to_attach_no_wait, t); |
136d6dae | 629 | /* Do not inherit to_detach. */ |
597320e7 | 630 | /* Do not inherit to_disconnect. */ |
28439f5e | 631 | /* Do not inherit to_resume. */ |
117de6a9 | 632 | /* Do not inherit to_wait. */ |
28439f5e PA |
633 | /* Do not inherit to_fetch_registers. */ |
634 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 635 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 636 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
637 | INHERIT (to_files_info, t); |
638 | INHERIT (to_insert_breakpoint, t); | |
639 | INHERIT (to_remove_breakpoint, t); | |
640 | INHERIT (to_can_use_hw_breakpoint, t); | |
641 | INHERIT (to_insert_hw_breakpoint, t); | |
642 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 643 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
644 | INHERIT (to_insert_watchpoint, t); |
645 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
646 | /* Do not inherit to_insert_mask_watchpoint. */ |
647 | /* Do not inherit to_remove_mask_watchpoint. */ | |
7998dfc3 | 648 | INHERIT (to_stopped_data_address, t); |
74174d2e | 649 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 650 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
651 | INHERIT (to_stopped_by_watchpoint, t); |
652 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 653 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 654 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 655 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
656 | INHERIT (to_terminal_init, t); |
657 | INHERIT (to_terminal_inferior, t); | |
658 | INHERIT (to_terminal_ours_for_output, t); | |
659 | INHERIT (to_terminal_ours, t); | |
660 | INHERIT (to_terminal_save_ours, t); | |
661 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 662 | /* Do not inherit to_kill. */ |
7998dfc3 | 663 | INHERIT (to_load, t); |
136d6dae | 664 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 665 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
666 | INHERIT (to_insert_fork_catchpoint, t); |
667 | INHERIT (to_remove_fork_catchpoint, t); | |
668 | INHERIT (to_insert_vfork_catchpoint, t); | |
669 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 670 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
671 | INHERIT (to_insert_exec_catchpoint, t); |
672 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 673 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 674 | INHERIT (to_has_exited, t); |
82892036 | 675 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 676 | INHERIT (to_can_run, t); |
2455069d | 677 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 678 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
679 | /* Do not inherit to_thread_alive. */ |
680 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 681 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 682 | INHERIT (to_extra_thread_info, t); |
4694da01 | 683 | INHERIT (to_thread_name, t); |
7998dfc3 | 684 | INHERIT (to_stop, t); |
4b8a223f | 685 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 686 | INHERIT (to_rcmd, t); |
7998dfc3 | 687 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 688 | INHERIT (to_log_command, t); |
7998dfc3 | 689 | INHERIT (to_stratum, t); |
c378eb4e MS |
690 | /* Do not inherit to_has_all_memory. */ |
691 | /* Do not inherit to_has_memory. */ | |
692 | /* Do not inherit to_has_stack. */ | |
693 | /* Do not inherit to_has_registers. */ | |
694 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 695 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
696 | INHERIT (to_can_async_p, t); |
697 | INHERIT (to_is_async_p, t); | |
698 | INHERIT (to_async, t); | |
7998dfc3 AC |
699 | INHERIT (to_find_memory_regions, t); |
700 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
701 | INHERIT (to_get_bookmark, t); |
702 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 703 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 704 | INHERIT (to_can_execute_reverse, t); |
32231432 | 705 | INHERIT (to_execution_direction, t); |
c2250ad1 | 706 | INHERIT (to_thread_architecture, t); |
424163ea | 707 | /* Do not inherit to_read_description. */ |
0ef643c8 | 708 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 709 | /* Do not inherit to_search_memory. */ |
8a305172 | 710 | INHERIT (to_supports_multi_process, t); |
d248b706 | 711 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 712 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
713 | INHERIT (to_trace_init, t); |
714 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 715 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 716 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
717 | INHERIT (to_enable_tracepoint, t); |
718 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
719 | INHERIT (to_trace_set_readonly_regions, t); |
720 | INHERIT (to_trace_start, t); | |
721 | INHERIT (to_get_trace_status, t); | |
f196051f | 722 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
723 | INHERIT (to_trace_stop, t); |
724 | INHERIT (to_trace_find, t); | |
725 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
726 | INHERIT (to_save_trace_data, t); |
727 | INHERIT (to_upload_tracepoints, t); | |
728 | INHERIT (to_upload_trace_state_variables, t); | |
729 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 730 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 731 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 732 | INHERIT (to_set_circular_trace_buffer, t); |
f6f899bf | 733 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 734 | INHERIT (to_set_trace_notes, t); |
711e434b | 735 | INHERIT (to_get_tib_address, t); |
d914c394 | 736 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
737 | INHERIT (to_static_tracepoint_marker_at, t); |
738 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 739 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
740 | INHERIT (to_use_agent, t); |
741 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 742 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 743 | INHERIT (to_magic, t); |
b775012e | 744 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 745 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 746 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
747 | /* Do not inherit to_flash_erase. */ |
748 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
749 | } |
750 | #undef INHERIT | |
751 | ||
752 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
753 | it. Some entries are defaulted to a method that print an error, |
754 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
755 | |
756 | #define de_fault(field, value) \ | |
7998dfc3 AC |
757 | if (!current_target.field) \ |
758 | current_target.field = value | |
0d06e24b | 759 | |
2bc416ba DJ |
760 | de_fault (to_open, |
761 | (void (*) (char *, int)) | |
0d06e24b | 762 | tcomplain); |
2bc416ba | 763 | de_fault (to_close, |
460014f5 | 764 | (void (*) (void)) |
0d06e24b | 765 | target_ignore); |
2bc416ba DJ |
766 | de_fault (to_post_attach, |
767 | (void (*) (int)) | |
0d06e24b | 768 | target_ignore); |
2bc416ba | 769 | de_fault (to_prepare_to_store, |
316f2060 | 770 | (void (*) (struct regcache *)) |
0d06e24b | 771 | noprocess); |
2bc416ba | 772 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
773 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
774 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 775 | nomemory); |
2bc416ba DJ |
776 | de_fault (to_files_info, |
777 | (void (*) (struct target_ops *)) | |
0d06e24b | 778 | target_ignore); |
2bc416ba | 779 | de_fault (to_insert_breakpoint, |
0d06e24b | 780 | memory_insert_breakpoint); |
2bc416ba | 781 | de_fault (to_remove_breakpoint, |
0d06e24b | 782 | memory_remove_breakpoint); |
ccaa32c7 GS |
783 | de_fault (to_can_use_hw_breakpoint, |
784 | (int (*) (int, int, int)) | |
785 | return_zero); | |
786 | de_fault (to_insert_hw_breakpoint, | |
a6d9a66e | 787 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
788 | return_minus_one); |
789 | de_fault (to_remove_hw_breakpoint, | |
a6d9a66e | 790 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
791 | return_minus_one); |
792 | de_fault (to_insert_watchpoint, | |
0cf6dd15 | 793 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
794 | return_minus_one); |
795 | de_fault (to_remove_watchpoint, | |
0cf6dd15 | 796 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
797 | return_minus_one); |
798 | de_fault (to_stopped_by_watchpoint, | |
799 | (int (*) (void)) | |
800 | return_zero); | |
801 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 802 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 803 | return_zero); |
5009afc5 AS |
804 | de_fault (to_watchpoint_addr_within_range, |
805 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
806 | de_fault (to_region_ok_for_hw_watchpoint, |
807 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 TJB |
808 | de_fault (to_can_accel_watchpoint_condition, |
809 | (int (*) (CORE_ADDR, int, int, struct expression *)) | |
810 | return_zero); | |
2bc416ba DJ |
811 | de_fault (to_terminal_init, |
812 | (void (*) (void)) | |
0d06e24b | 813 | target_ignore); |
2bc416ba DJ |
814 | de_fault (to_terminal_inferior, |
815 | (void (*) (void)) | |
0d06e24b | 816 | target_ignore); |
2bc416ba DJ |
817 | de_fault (to_terminal_ours_for_output, |
818 | (void (*) (void)) | |
0d06e24b | 819 | target_ignore); |
2bc416ba DJ |
820 | de_fault (to_terminal_ours, |
821 | (void (*) (void)) | |
0d06e24b | 822 | target_ignore); |
2bc416ba DJ |
823 | de_fault (to_terminal_save_ours, |
824 | (void (*) (void)) | |
a790ad35 | 825 | target_ignore); |
2bc416ba | 826 | de_fault (to_terminal_info, |
0d06e24b | 827 | default_terminal_info); |
2bc416ba DJ |
828 | de_fault (to_load, |
829 | (void (*) (char *, int)) | |
0d06e24b | 830 | tcomplain); |
2bc416ba DJ |
831 | de_fault (to_post_startup_inferior, |
832 | (void (*) (ptid_t)) | |
0d06e24b | 833 | target_ignore); |
2bc416ba | 834 | de_fault (to_insert_fork_catchpoint, |
77b06cd7 TJB |
835 | (int (*) (int)) |
836 | return_one); | |
2bc416ba DJ |
837 | de_fault (to_remove_fork_catchpoint, |
838 | (int (*) (int)) | |
77b06cd7 | 839 | return_one); |
2bc416ba | 840 | de_fault (to_insert_vfork_catchpoint, |
77b06cd7 TJB |
841 | (int (*) (int)) |
842 | return_one); | |
2bc416ba DJ |
843 | de_fault (to_remove_vfork_catchpoint, |
844 | (int (*) (int)) | |
77b06cd7 | 845 | return_one); |
2bc416ba | 846 | de_fault (to_insert_exec_catchpoint, |
77b06cd7 TJB |
847 | (int (*) (int)) |
848 | return_one); | |
2bc416ba DJ |
849 | de_fault (to_remove_exec_catchpoint, |
850 | (int (*) (int)) | |
77b06cd7 | 851 | return_one); |
a96d9b2e SDJ |
852 | de_fault (to_set_syscall_catchpoint, |
853 | (int (*) (int, int, int, int, int *)) | |
77b06cd7 | 854 | return_one); |
2bc416ba DJ |
855 | de_fault (to_has_exited, |
856 | (int (*) (int, int, int *)) | |
0d06e24b | 857 | return_zero); |
2bc416ba | 858 | de_fault (to_can_run, |
0d06e24b | 859 | return_zero); |
2bc416ba DJ |
860 | de_fault (to_extra_thread_info, |
861 | (char *(*) (struct thread_info *)) | |
0d06e24b | 862 | return_zero); |
4694da01 TT |
863 | de_fault (to_thread_name, |
864 | (char *(*) (struct thread_info *)) | |
865 | return_zero); | |
2bc416ba | 866 | de_fault (to_stop, |
94cc34af | 867 | (void (*) (ptid_t)) |
0d06e24b | 868 | target_ignore); |
cf7a04e8 | 869 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
870 | de_fault (to_rcmd, |
871 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 872 | tcomplain); |
2bc416ba DJ |
873 | de_fault (to_pid_to_exec_file, |
874 | (char *(*) (int)) | |
0d06e24b | 875 | return_zero); |
2bc416ba DJ |
876 | de_fault (to_async, |
877 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 878 | tcomplain); |
c2250ad1 UW |
879 | de_fault (to_thread_architecture, |
880 | default_thread_architecture); | |
424163ea | 881 | current_target.to_read_description = NULL; |
0ef643c8 JB |
882 | de_fault (to_get_ada_task_ptid, |
883 | (ptid_t (*) (long, long)) | |
884 | default_get_ada_task_ptid); | |
8a305172 PA |
885 | de_fault (to_supports_multi_process, |
886 | (int (*) (void)) | |
887 | return_zero); | |
d248b706 KY |
888 | de_fault (to_supports_enable_disable_tracepoint, |
889 | (int (*) (void)) | |
890 | return_zero); | |
3065dfb6 SS |
891 | de_fault (to_supports_string_tracing, |
892 | (int (*) (void)) | |
893 | return_zero); | |
35b1e5cc SS |
894 | de_fault (to_trace_init, |
895 | (void (*) (void)) | |
896 | tcomplain); | |
897 | de_fault (to_download_tracepoint, | |
e8ba3115 | 898 | (void (*) (struct bp_location *)) |
35b1e5cc | 899 | tcomplain); |
1e4d1764 YQ |
900 | de_fault (to_can_download_tracepoint, |
901 | (int (*) (void)) | |
902 | return_zero); | |
35b1e5cc SS |
903 | de_fault (to_download_trace_state_variable, |
904 | (void (*) (struct trace_state_variable *)) | |
905 | tcomplain); | |
d248b706 KY |
906 | de_fault (to_enable_tracepoint, |
907 | (void (*) (struct bp_location *)) | |
908 | tcomplain); | |
909 | de_fault (to_disable_tracepoint, | |
910 | (void (*) (struct bp_location *)) | |
911 | tcomplain); | |
35b1e5cc SS |
912 | de_fault (to_trace_set_readonly_regions, |
913 | (void (*) (void)) | |
914 | tcomplain); | |
915 | de_fault (to_trace_start, | |
916 | (void (*) (void)) | |
917 | tcomplain); | |
918 | de_fault (to_get_trace_status, | |
00bf0b85 | 919 | (int (*) (struct trace_status *)) |
35b1e5cc | 920 | return_minus_one); |
f196051f SS |
921 | de_fault (to_get_tracepoint_status, |
922 | (void (*) (struct breakpoint *, struct uploaded_tp *)) | |
923 | tcomplain); | |
35b1e5cc SS |
924 | de_fault (to_trace_stop, |
925 | (void (*) (void)) | |
926 | tcomplain); | |
927 | de_fault (to_trace_find, | |
cc5925ad | 928 | (int (*) (enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) |
4136fdd2 | 929 | return_minus_one); |
35b1e5cc SS |
930 | de_fault (to_get_trace_state_variable_value, |
931 | (int (*) (int, LONGEST *)) | |
932 | return_zero); | |
00bf0b85 | 933 | de_fault (to_save_trace_data, |
011aacb0 | 934 | (int (*) (const char *)) |
00bf0b85 SS |
935 | tcomplain); |
936 | de_fault (to_upload_tracepoints, | |
937 | (int (*) (struct uploaded_tp **)) | |
938 | return_zero); | |
939 | de_fault (to_upload_trace_state_variables, | |
940 | (int (*) (struct uploaded_tsv **)) | |
941 | return_zero); | |
942 | de_fault (to_get_raw_trace_data, | |
943 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
944 | tcomplain); | |
405f8e94 SS |
945 | de_fault (to_get_min_fast_tracepoint_insn_len, |
946 | (int (*) (void)) | |
947 | return_minus_one); | |
35b1e5cc SS |
948 | de_fault (to_set_disconnected_tracing, |
949 | (void (*) (int)) | |
4daf5ac0 SS |
950 | target_ignore); |
951 | de_fault (to_set_circular_trace_buffer, | |
952 | (void (*) (int)) | |
953 | target_ignore); | |
f6f899bf HAQ |
954 | de_fault (to_set_trace_buffer_size, |
955 | (void (*) (LONGEST)) | |
956 | target_ignore); | |
f196051f | 957 | de_fault (to_set_trace_notes, |
ca623f82 | 958 | (int (*) (const char *, const char *, const char *)) |
f196051f | 959 | return_zero); |
711e434b PM |
960 | de_fault (to_get_tib_address, |
961 | (int (*) (ptid_t, CORE_ADDR *)) | |
962 | tcomplain); | |
d914c394 SS |
963 | de_fault (to_set_permissions, |
964 | (void (*) (void)) | |
965 | target_ignore); | |
0fb4aa4b PA |
966 | de_fault (to_static_tracepoint_marker_at, |
967 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
968 | return_zero); | |
969 | de_fault (to_static_tracepoint_markers_by_strid, | |
970 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
971 | tcomplain); | |
b3b9301e PA |
972 | de_fault (to_traceframe_info, |
973 | (struct traceframe_info * (*) (void)) | |
1527aea8 | 974 | return_zero); |
b775012e LM |
975 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
976 | (int (*) (void)) | |
977 | return_zero); | |
d3ce09f5 SS |
978 | de_fault (to_can_run_breakpoint_commands, |
979 | (int (*) (void)) | |
980 | return_zero); | |
d1feda86 YQ |
981 | de_fault (to_use_agent, |
982 | (int (*) (int)) | |
983 | tcomplain); | |
984 | de_fault (to_can_use_agent, | |
985 | (int (*) (void)) | |
986 | return_zero); | |
ced63ec0 GB |
987 | de_fault (to_augmented_libraries_svr4_read, |
988 | (int (*) (void)) | |
989 | return_zero); | |
32231432 PA |
990 | de_fault (to_execution_direction, default_execution_direction); |
991 | ||
c906108c | 992 | #undef de_fault |
c906108c | 993 | |
7998dfc3 AC |
994 | /* Finally, position the target-stack beneath the squashed |
995 | "current_target". That way code looking for a non-inherited | |
996 | target method can quickly and simply find it. */ | |
997 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
998 | |
999 | if (targetdebug) | |
1000 | setup_target_debug (); | |
c906108c SS |
1001 | } |
1002 | ||
1003 | /* Push a new target type into the stack of the existing target accessors, | |
1004 | possibly superseding some of the existing accessors. | |
1005 | ||
c906108c SS |
1006 | Rather than allow an empty stack, we always have the dummy target at |
1007 | the bottom stratum, so we can call the function vectors without | |
1008 | checking them. */ | |
1009 | ||
b26a4dcb | 1010 | void |
fba45db2 | 1011 | push_target (struct target_ops *t) |
c906108c | 1012 | { |
258b763a | 1013 | struct target_ops **cur; |
c906108c SS |
1014 | |
1015 | /* Check magic number. If wrong, it probably means someone changed | |
1016 | the struct definition, but not all the places that initialize one. */ | |
1017 | if (t->to_magic != OPS_MAGIC) | |
1018 | { | |
c5aa993b JM |
1019 | fprintf_unfiltered (gdb_stderr, |
1020 | "Magic number of %s target struct wrong\n", | |
1021 | t->to_shortname); | |
3e43a32a MS |
1022 | internal_error (__FILE__, __LINE__, |
1023 | _("failed internal consistency check")); | |
c906108c SS |
1024 | } |
1025 | ||
258b763a AC |
1026 | /* Find the proper stratum to install this target in. */ |
1027 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 1028 | { |
258b763a | 1029 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
1030 | break; |
1031 | } | |
1032 | ||
258b763a | 1033 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 1034 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
1035 | targets to CUR, and not just those at this stratum level. */ |
1036 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
1037 | { | |
1038 | /* There's already something at this stratum level. Close it, | |
1039 | and un-hook it from the stack. */ | |
1040 | struct target_ops *tmp = (*cur); | |
5d502164 | 1041 | |
258b763a AC |
1042 | (*cur) = (*cur)->beneath; |
1043 | tmp->beneath = NULL; | |
460014f5 | 1044 | target_close (tmp); |
258b763a | 1045 | } |
c906108c SS |
1046 | |
1047 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
1048 | t->beneath = (*cur); |
1049 | (*cur) = t; | |
c906108c SS |
1050 | |
1051 | update_current_target (); | |
c906108c SS |
1052 | } |
1053 | ||
2bc416ba | 1054 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1055 | Return how many times it was removed (0 or 1). */ |
1056 | ||
1057 | int | |
fba45db2 | 1058 | unpush_target (struct target_ops *t) |
c906108c | 1059 | { |
258b763a AC |
1060 | struct target_ops **cur; |
1061 | struct target_ops *tmp; | |
c906108c | 1062 | |
c8d104ad PA |
1063 | if (t->to_stratum == dummy_stratum) |
1064 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1065 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1066 | |
c906108c | 1067 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1068 | can only occur once in the target stack. */ |
c906108c | 1069 | |
258b763a AC |
1070 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1071 | { | |
1072 | if ((*cur) == t) | |
1073 | break; | |
1074 | } | |
c906108c | 1075 | |
305436e0 PA |
1076 | /* If we don't find target_ops, quit. Only open targets should be |
1077 | closed. */ | |
258b763a | 1078 | if ((*cur) == NULL) |
305436e0 | 1079 | return 0; |
5269965e | 1080 | |
c378eb4e | 1081 | /* Unchain the target. */ |
258b763a AC |
1082 | tmp = (*cur); |
1083 | (*cur) = (*cur)->beneath; | |
1084 | tmp->beneath = NULL; | |
c906108c SS |
1085 | |
1086 | update_current_target (); | |
c906108c | 1087 | |
305436e0 PA |
1088 | /* Finally close the target. Note we do this after unchaining, so |
1089 | any target method calls from within the target_close | |
1090 | implementation don't end up in T anymore. */ | |
460014f5 | 1091 | target_close (t); |
305436e0 | 1092 | |
c906108c SS |
1093 | return 1; |
1094 | } | |
1095 | ||
1096 | void | |
fba45db2 | 1097 | pop_target (void) |
c906108c | 1098 | { |
460014f5 | 1099 | target_close (target_stack); /* Let it clean up. */ |
258b763a | 1100 | if (unpush_target (target_stack) == 1) |
c906108c SS |
1101 | return; |
1102 | ||
c5aa993b JM |
1103 | fprintf_unfiltered (gdb_stderr, |
1104 | "pop_target couldn't find target %s\n", | |
1105 | current_target.to_shortname); | |
5d502164 MS |
1106 | internal_error (__FILE__, __LINE__, |
1107 | _("failed internal consistency check")); | |
c906108c SS |
1108 | } |
1109 | ||
aa76d38d | 1110 | void |
460014f5 | 1111 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1112 | { |
87ab71f0 | 1113 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1114 | { |
460014f5 | 1115 | target_close (target_stack); |
aa76d38d PA |
1116 | if (!unpush_target (target_stack)) |
1117 | { | |
1118 | fprintf_unfiltered (gdb_stderr, | |
1119 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1120 | target_stack->to_shortname); |
aa76d38d PA |
1121 | internal_error (__FILE__, __LINE__, |
1122 | _("failed internal consistency check")); | |
1123 | break; | |
1124 | } | |
1125 | } | |
1126 | } | |
1127 | ||
87ab71f0 | 1128 | void |
460014f5 | 1129 | pop_all_targets (void) |
87ab71f0 | 1130 | { |
460014f5 | 1131 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1132 | } |
1133 | ||
c0edd9ed JK |
1134 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1135 | ||
1136 | int | |
1137 | target_is_pushed (struct target_ops *t) | |
1138 | { | |
1139 | struct target_ops **cur; | |
1140 | ||
1141 | /* Check magic number. If wrong, it probably means someone changed | |
1142 | the struct definition, but not all the places that initialize one. */ | |
1143 | if (t->to_magic != OPS_MAGIC) | |
1144 | { | |
1145 | fprintf_unfiltered (gdb_stderr, | |
1146 | "Magic number of %s target struct wrong\n", | |
1147 | t->to_shortname); | |
3e43a32a MS |
1148 | internal_error (__FILE__, __LINE__, |
1149 | _("failed internal consistency check")); | |
c0edd9ed JK |
1150 | } |
1151 | ||
1152 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1153 | if (*cur == t) | |
1154 | return 1; | |
1155 | ||
1156 | return 0; | |
1157 | } | |
1158 | ||
72f5cf0e | 1159 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1160 | current thread's thread-local storage with offset OFFSET. */ |
1161 | CORE_ADDR | |
1162 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1163 | { | |
1164 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1165 | struct target_ops *target; |
1166 | ||
1167 | for (target = current_target.beneath; | |
1168 | target != NULL; | |
1169 | target = target->beneath) | |
1170 | { | |
1171 | if (target->to_get_thread_local_address != NULL) | |
1172 | break; | |
1173 | } | |
9e35dae4 | 1174 | |
117de6a9 | 1175 | if (target != NULL |
f5656ead | 1176 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1177 | { |
1178 | ptid_t ptid = inferior_ptid; | |
1179 | volatile struct gdb_exception ex; | |
1180 | ||
1181 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1182 | { | |
1183 | CORE_ADDR lm_addr; | |
1184 | ||
1185 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1186 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1187 | objfile); |
1188 | /* If it's 0, throw the appropriate exception. */ | |
1189 | if (lm_addr == 0) | |
1190 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1191 | _("TLS load module not found")); | |
1192 | ||
3e43a32a MS |
1193 | addr = target->to_get_thread_local_address (target, ptid, |
1194 | lm_addr, offset); | |
9e35dae4 DJ |
1195 | } |
1196 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1197 | throw the error to some higher catcher. */ | |
1198 | if (ex.reason < 0) | |
1199 | { | |
1200 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1201 | ||
1202 | switch (ex.error) | |
1203 | { | |
1204 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1205 | error (_("Cannot find thread-local variables " |
1206 | "in this thread library.")); | |
9e35dae4 DJ |
1207 | break; |
1208 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1209 | if (objfile_is_library) | |
1210 | error (_("Cannot find shared library `%s' in dynamic" | |
1211 | " linker's load module list"), objfile->name); | |
1212 | else | |
1213 | error (_("Cannot find executable file `%s' in dynamic" | |
1214 | " linker's load module list"), objfile->name); | |
1215 | break; | |
1216 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1217 | if (objfile_is_library) | |
1218 | error (_("The inferior has not yet allocated storage for" | |
1219 | " thread-local variables in\n" | |
1220 | "the shared library `%s'\n" | |
1221 | "for %s"), | |
1222 | objfile->name, target_pid_to_str (ptid)); | |
1223 | else | |
1224 | error (_("The inferior has not yet allocated storage for" | |
1225 | " thread-local variables in\n" | |
1226 | "the executable `%s'\n" | |
1227 | "for %s"), | |
1228 | objfile->name, target_pid_to_str (ptid)); | |
1229 | break; | |
1230 | case TLS_GENERIC_ERROR: | |
1231 | if (objfile_is_library) | |
1232 | error (_("Cannot find thread-local storage for %s, " | |
1233 | "shared library %s:\n%s"), | |
1234 | target_pid_to_str (ptid), | |
1235 | objfile->name, ex.message); | |
1236 | else | |
1237 | error (_("Cannot find thread-local storage for %s, " | |
1238 | "executable file %s:\n%s"), | |
1239 | target_pid_to_str (ptid), | |
1240 | objfile->name, ex.message); | |
1241 | break; | |
1242 | default: | |
1243 | throw_exception (ex); | |
1244 | break; | |
1245 | } | |
1246 | } | |
1247 | } | |
1248 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1249 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1250 | else | |
1251 | error (_("Cannot find thread-local variables on this target")); | |
1252 | ||
1253 | return addr; | |
1254 | } | |
1255 | ||
c906108c SS |
1256 | #undef MIN |
1257 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1258 | ||
1259 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1260 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1261 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1262 | is responsible for freeing it. Return the number of bytes successfully | |
1263 | read. */ | |
1264 | ||
1265 | int | |
fba45db2 | 1266 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1267 | { |
c2e8b827 | 1268 | int tlen, offset, i; |
1b0ba102 | 1269 | gdb_byte buf[4]; |
c906108c SS |
1270 | int errcode = 0; |
1271 | char *buffer; | |
1272 | int buffer_allocated; | |
1273 | char *bufptr; | |
1274 | unsigned int nbytes_read = 0; | |
1275 | ||
6217bf3e MS |
1276 | gdb_assert (string); |
1277 | ||
c906108c SS |
1278 | /* Small for testing. */ |
1279 | buffer_allocated = 4; | |
1280 | buffer = xmalloc (buffer_allocated); | |
1281 | bufptr = buffer; | |
1282 | ||
c906108c SS |
1283 | while (len > 0) |
1284 | { | |
1285 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1286 | offset = memaddr & 3; | |
1287 | ||
1b0ba102 | 1288 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1289 | if (errcode != 0) |
1290 | { | |
1291 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1292 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1293 | a single byte. */ |
1294 | tlen = 1; | |
1295 | offset = 0; | |
b8eb5af0 | 1296 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1297 | if (errcode != 0) |
1298 | goto done; | |
1299 | } | |
1300 | ||
1301 | if (bufptr - buffer + tlen > buffer_allocated) | |
1302 | { | |
1303 | unsigned int bytes; | |
5d502164 | 1304 | |
c906108c SS |
1305 | bytes = bufptr - buffer; |
1306 | buffer_allocated *= 2; | |
1307 | buffer = xrealloc (buffer, buffer_allocated); | |
1308 | bufptr = buffer + bytes; | |
1309 | } | |
1310 | ||
1311 | for (i = 0; i < tlen; i++) | |
1312 | { | |
1313 | *bufptr++ = buf[i + offset]; | |
1314 | if (buf[i + offset] == '\000') | |
1315 | { | |
1316 | nbytes_read += i + 1; | |
1317 | goto done; | |
1318 | } | |
1319 | } | |
1320 | ||
1321 | memaddr += tlen; | |
1322 | len -= tlen; | |
1323 | nbytes_read += tlen; | |
1324 | } | |
c5aa993b | 1325 | done: |
6217bf3e | 1326 | *string = buffer; |
c906108c SS |
1327 | if (errnop != NULL) |
1328 | *errnop = errcode; | |
c906108c SS |
1329 | return nbytes_read; |
1330 | } | |
1331 | ||
07b82ea5 PA |
1332 | struct target_section_table * |
1333 | target_get_section_table (struct target_ops *target) | |
1334 | { | |
1335 | struct target_ops *t; | |
1336 | ||
1337 | if (targetdebug) | |
1338 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1339 | ||
1340 | for (t = target; t != NULL; t = t->beneath) | |
1341 | if (t->to_get_section_table != NULL) | |
1342 | return (*t->to_get_section_table) (t); | |
1343 | ||
1344 | return NULL; | |
1345 | } | |
1346 | ||
8db32d44 | 1347 | /* Find a section containing ADDR. */ |
07b82ea5 | 1348 | |
0542c86d | 1349 | struct target_section * |
8db32d44 AC |
1350 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1351 | { | |
07b82ea5 | 1352 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1353 | struct target_section *secp; |
07b82ea5 PA |
1354 | |
1355 | if (table == NULL) | |
1356 | return NULL; | |
1357 | ||
1358 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1359 | { |
1360 | if (addr >= secp->addr && addr < secp->endaddr) | |
1361 | return secp; | |
1362 | } | |
1363 | return NULL; | |
1364 | } | |
1365 | ||
e6e4e701 PA |
1366 | /* Read memory from the live target, even if currently inspecting a |
1367 | traceframe. The return is the same as that of target_read. */ | |
1368 | ||
1369 | static LONGEST | |
1370 | target_read_live_memory (enum target_object object, | |
1371 | ULONGEST memaddr, gdb_byte *myaddr, LONGEST len) | |
1372 | { | |
1373 | int ret; | |
1374 | struct cleanup *cleanup; | |
1375 | ||
1376 | /* Switch momentarily out of tfind mode so to access live memory. | |
1377 | Note that this must not clear global state, such as the frame | |
1378 | cache, which must still remain valid for the previous traceframe. | |
1379 | We may be _building_ the frame cache at this point. */ | |
1380 | cleanup = make_cleanup_restore_traceframe_number (); | |
1381 | set_traceframe_number (-1); | |
1382 | ||
1383 | ret = target_read (current_target.beneath, object, NULL, | |
1384 | myaddr, memaddr, len); | |
1385 | ||
1386 | do_cleanups (cleanup); | |
1387 | return ret; | |
1388 | } | |
1389 | ||
1390 | /* Using the set of read-only target sections of OPS, read live | |
1391 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1392 | top-most target again. |
1393 | ||
1394 | For interface/parameters/return description see target.h, | |
1395 | to_xfer_partial. */ | |
e6e4e701 PA |
1396 | |
1397 | static LONGEST | |
1398 | memory_xfer_live_readonly_partial (struct target_ops *ops, | |
1399 | enum target_object object, | |
1400 | gdb_byte *readbuf, ULONGEST memaddr, | |
1401 | LONGEST len) | |
1402 | { | |
1403 | struct target_section *secp; | |
1404 | struct target_section_table *table; | |
1405 | ||
1406 | secp = target_section_by_addr (ops, memaddr); | |
1407 | if (secp != NULL | |
2b2848e2 DE |
1408 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1409 | secp->the_bfd_section) | |
e6e4e701 PA |
1410 | & SEC_READONLY)) |
1411 | { | |
1412 | struct target_section *p; | |
1413 | ULONGEST memend = memaddr + len; | |
1414 | ||
1415 | table = target_get_section_table (ops); | |
1416 | ||
1417 | for (p = table->sections; p < table->sections_end; p++) | |
1418 | { | |
1419 | if (memaddr >= p->addr) | |
1420 | { | |
1421 | if (memend <= p->endaddr) | |
1422 | { | |
1423 | /* Entire transfer is within this section. */ | |
1424 | return target_read_live_memory (object, memaddr, | |
1425 | readbuf, len); | |
1426 | } | |
1427 | else if (memaddr >= p->endaddr) | |
1428 | { | |
1429 | /* This section ends before the transfer starts. */ | |
1430 | continue; | |
1431 | } | |
1432 | else | |
1433 | { | |
1434 | /* This section overlaps the transfer. Just do half. */ | |
1435 | len = p->endaddr - memaddr; | |
1436 | return target_read_live_memory (object, memaddr, | |
1437 | readbuf, len); | |
1438 | } | |
1439 | } | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | return 0; | |
1444 | } | |
1445 | ||
7f79c47e DE |
1446 | /* Perform a partial memory transfer. |
1447 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 DJ |
1448 | |
1449 | static LONGEST | |
f0ba3972 PA |
1450 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
1451 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1452 | LONGEST len) | |
0779438d | 1453 | { |
cf7a04e8 DJ |
1454 | LONGEST res; |
1455 | int reg_len; | |
1456 | struct mem_region *region; | |
4e5d721f | 1457 | struct inferior *inf; |
cf7a04e8 | 1458 | |
07b82ea5 PA |
1459 | /* For accesses to unmapped overlay sections, read directly from |
1460 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1461 | if (readbuf != NULL && overlay_debugging) | |
1462 | { | |
1463 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1464 | |
07b82ea5 PA |
1465 | if (pc_in_unmapped_range (memaddr, section)) |
1466 | { | |
1467 | struct target_section_table *table | |
1468 | = target_get_section_table (ops); | |
1469 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1470 | |
07b82ea5 PA |
1471 | memaddr = overlay_mapped_address (memaddr, section); |
1472 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1473 | memaddr, len, | |
1474 | table->sections, | |
1475 | table->sections_end, | |
1476 | section_name); | |
1477 | } | |
1478 | } | |
1479 | ||
1480 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1481 | if (readbuf != NULL && trust_readonly) |
1482 | { | |
0542c86d | 1483 | struct target_section *secp; |
07b82ea5 | 1484 | struct target_section_table *table; |
cf7a04e8 DJ |
1485 | |
1486 | secp = target_section_by_addr (ops, memaddr); | |
1487 | if (secp != NULL | |
2b2848e2 DE |
1488 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1489 | secp->the_bfd_section) | |
cf7a04e8 | 1490 | & SEC_READONLY)) |
07b82ea5 PA |
1491 | { |
1492 | table = target_get_section_table (ops); | |
1493 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1494 | memaddr, len, | |
1495 | table->sections, | |
1496 | table->sections_end, | |
1497 | NULL); | |
1498 | } | |
98646950 UW |
1499 | } |
1500 | ||
e6e4e701 PA |
1501 | /* If reading unavailable memory in the context of traceframes, and |
1502 | this address falls within a read-only section, fallback to | |
1503 | reading from live memory. */ | |
1504 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1505 | { | |
1506 | VEC(mem_range_s) *available; | |
1507 | ||
1508 | /* If we fail to get the set of available memory, then the | |
1509 | target does not support querying traceframe info, and so we | |
1510 | attempt reading from the traceframe anyway (assuming the | |
1511 | target implements the old QTro packet then). */ | |
1512 | if (traceframe_available_memory (&available, memaddr, len)) | |
1513 | { | |
1514 | struct cleanup *old_chain; | |
1515 | ||
1516 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1517 | ||
1518 | if (VEC_empty (mem_range_s, available) | |
1519 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1520 | { | |
1521 | /* Don't read into the traceframe's available | |
1522 | memory. */ | |
1523 | if (!VEC_empty (mem_range_s, available)) | |
1524 | { | |
1525 | LONGEST oldlen = len; | |
1526 | ||
1527 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1528 | gdb_assert (len <= oldlen); | |
1529 | } | |
1530 | ||
1531 | do_cleanups (old_chain); | |
1532 | ||
1533 | /* This goes through the topmost target again. */ | |
1534 | res = memory_xfer_live_readonly_partial (ops, object, | |
1535 | readbuf, memaddr, len); | |
1536 | if (res > 0) | |
1537 | return res; | |
1538 | ||
1539 | /* No use trying further, we know some memory starting | |
1540 | at MEMADDR isn't available. */ | |
1541 | return -1; | |
1542 | } | |
1543 | ||
1544 | /* Don't try to read more than how much is available, in | |
1545 | case the target implements the deprecated QTro packet to | |
1546 | cater for older GDBs (the target's knowledge of read-only | |
1547 | sections may be outdated by now). */ | |
1548 | len = VEC_index (mem_range_s, available, 0)->length; | |
1549 | ||
1550 | do_cleanups (old_chain); | |
1551 | } | |
1552 | } | |
1553 | ||
cf7a04e8 DJ |
1554 | /* Try GDB's internal data cache. */ |
1555 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1556 | /* region->hi == 0 means there's no upper bound. */ |
1557 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1558 | reg_len = len; |
1559 | else | |
1560 | reg_len = region->hi - memaddr; | |
1561 | ||
1562 | switch (region->attrib.mode) | |
1563 | { | |
1564 | case MEM_RO: | |
1565 | if (writebuf != NULL) | |
1566 | return -1; | |
1567 | break; | |
1568 | ||
1569 | case MEM_WO: | |
1570 | if (readbuf != NULL) | |
1571 | return -1; | |
1572 | break; | |
a76d924d DJ |
1573 | |
1574 | case MEM_FLASH: | |
1575 | /* We only support writing to flash during "load" for now. */ | |
1576 | if (writebuf != NULL) | |
1577 | error (_("Writing to flash memory forbidden in this context")); | |
1578 | break; | |
4b5752d0 VP |
1579 | |
1580 | case MEM_NONE: | |
1581 | return -1; | |
cf7a04e8 DJ |
1582 | } |
1583 | ||
6c95b8df PA |
1584 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1585 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1586 | else | |
1587 | inf = NULL; | |
4e5d721f DE |
1588 | |
1589 | if (inf != NULL | |
2f4d8875 PA |
1590 | /* The dcache reads whole cache lines; that doesn't play well |
1591 | with reading from a trace buffer, because reading outside of | |
1592 | the collected memory range fails. */ | |
1593 | && get_traceframe_number () == -1 | |
4e5d721f DE |
1594 | && (region->attrib.cache |
1595 | || (stack_cache_enabled_p && object == TARGET_OBJECT_STACK_MEMORY))) | |
cf7a04e8 | 1596 | { |
cf7a04e8 | 1597 | if (readbuf != NULL) |
25f122dc | 1598 | res = dcache_xfer_memory (ops, target_dcache, memaddr, readbuf, |
cf7a04e8 DJ |
1599 | reg_len, 0); |
1600 | else | |
1601 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1602 | correctness dcache_xfer_memory should take readbuf and | |
1603 | writebuf. */ | |
25f122dc | 1604 | res = dcache_xfer_memory (ops, target_dcache, memaddr, |
cf7a04e8 DJ |
1605 | (void *) writebuf, |
1606 | reg_len, 1); | |
1607 | if (res <= 0) | |
1608 | return -1; | |
1609 | else | |
f0ba3972 | 1610 | return res; |
cf7a04e8 DJ |
1611 | } |
1612 | ||
1613 | /* If none of those methods found the memory we wanted, fall back | |
1614 | to a target partial transfer. Normally a single call to | |
1615 | to_xfer_partial is enough; if it doesn't recognize an object | |
1616 | it will call the to_xfer_partial of the next target down. | |
1617 | But for memory this won't do. Memory is the only target | |
1618 | object which can be read from more than one valid target. | |
1619 | A core file, for instance, could have some of memory but | |
1620 | delegate other bits to the target below it. So, we must | |
1621 | manually try all targets. */ | |
1622 | ||
1623 | do | |
1624 | { | |
1625 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1626 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1627 | if (res > 0) |
8defab1a | 1628 | break; |
cf7a04e8 | 1629 | |
5ad3a4ca DJ |
1630 | /* We want to continue past core files to executables, but not |
1631 | past a running target's memory. */ | |
c35b1492 | 1632 | if (ops->to_has_all_memory (ops)) |
8defab1a | 1633 | break; |
5ad3a4ca | 1634 | |
cf7a04e8 DJ |
1635 | ops = ops->beneath; |
1636 | } | |
1637 | while (ops != NULL); | |
1638 | ||
41dcd03f DE |
1639 | /* Make sure the cache gets updated no matter what - if we are writing |
1640 | to the stack. Even if this write is not tagged as such, we still need | |
1641 | to update the cache. */ | |
1642 | ||
1643 | if (res > 0 | |
1644 | && inf != NULL | |
1645 | && writebuf != NULL | |
1646 | && !region->attrib.cache | |
1647 | && stack_cache_enabled_p | |
1648 | && object != TARGET_OBJECT_STACK_MEMORY) | |
1649 | { | |
7d4f32d3 | 1650 | dcache_update (target_dcache, memaddr, (void *) writebuf, res); |
41dcd03f DE |
1651 | } |
1652 | ||
cf7a04e8 DJ |
1653 | /* If we still haven't got anything, return the last error. We |
1654 | give up. */ | |
1655 | return res; | |
0779438d AC |
1656 | } |
1657 | ||
f0ba3972 PA |
1658 | /* Perform a partial memory transfer. For docs see target.h, |
1659 | to_xfer_partial. */ | |
1660 | ||
1661 | static LONGEST | |
1662 | memory_xfer_partial (struct target_ops *ops, enum target_object object, | |
1663 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1664 | LONGEST len) | |
1665 | { | |
1666 | int res; | |
1667 | ||
1668 | /* Zero length requests are ok and require no work. */ | |
1669 | if (len == 0) | |
1670 | return 0; | |
1671 | ||
1672 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1673 | breakpoint insns, thus hiding out from higher layers whether | |
1674 | there are software breakpoints inserted in the code stream. */ | |
1675 | if (readbuf != NULL) | |
1676 | { | |
1677 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len); | |
1678 | ||
1679 | if (res > 0 && !show_memory_breakpoints) | |
1680 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); | |
1681 | } | |
1682 | else | |
1683 | { | |
1684 | void *buf; | |
1685 | struct cleanup *old_chain; | |
1686 | ||
1687 | buf = xmalloc (len); | |
1688 | old_chain = make_cleanup (xfree, buf); | |
1689 | memcpy (buf, writebuf, len); | |
1690 | ||
1691 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
1692 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len); | |
1693 | ||
1694 | do_cleanups (old_chain); | |
1695 | } | |
1696 | ||
1697 | return res; | |
1698 | } | |
1699 | ||
8defab1a DJ |
1700 | static void |
1701 | restore_show_memory_breakpoints (void *arg) | |
1702 | { | |
1703 | show_memory_breakpoints = (uintptr_t) arg; | |
1704 | } | |
1705 | ||
1706 | struct cleanup * | |
1707 | make_show_memory_breakpoints_cleanup (int show) | |
1708 | { | |
1709 | int current = show_memory_breakpoints; | |
8defab1a | 1710 | |
5d502164 | 1711 | show_memory_breakpoints = show; |
8defab1a DJ |
1712 | return make_cleanup (restore_show_memory_breakpoints, |
1713 | (void *) (uintptr_t) current); | |
1714 | } | |
1715 | ||
7f79c47e DE |
1716 | /* For docs see target.h, to_xfer_partial. */ |
1717 | ||
27394598 AC |
1718 | static LONGEST |
1719 | target_xfer_partial (struct target_ops *ops, | |
1720 | enum target_object object, const char *annex, | |
1721 | void *readbuf, const void *writebuf, | |
1722 | ULONGEST offset, LONGEST len) | |
1723 | { | |
1724 | LONGEST retval; | |
1725 | ||
1726 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1727 | |
d914c394 SS |
1728 | if (writebuf && !may_write_memory) |
1729 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1730 | core_addr_to_string_nz (offset), plongest (len)); | |
1731 | ||
cf7a04e8 DJ |
1732 | /* If this is a memory transfer, let the memory-specific code |
1733 | have a look at it instead. Memory transfers are more | |
1734 | complicated. */ | |
4e5d721f DE |
1735 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY) |
1736 | retval = memory_xfer_partial (ops, object, readbuf, | |
1737 | writebuf, offset, len); | |
cf7a04e8 DJ |
1738 | else |
1739 | { | |
1740 | enum target_object raw_object = object; | |
1741 | ||
1742 | /* If this is a raw memory transfer, request the normal | |
1743 | memory object from other layers. */ | |
1744 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1745 | raw_object = TARGET_OBJECT_MEMORY; | |
1746 | ||
1747 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1748 | writebuf, offset, len); | |
1749 | } | |
1750 | ||
27394598 AC |
1751 | if (targetdebug) |
1752 | { | |
1753 | const unsigned char *myaddr = NULL; | |
1754 | ||
1755 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
1756 | "%s:target_xfer_partial " |
1757 | "(%d, %s, %s, %s, %s, %s) = %s", | |
27394598 AC |
1758 | ops->to_shortname, |
1759 | (int) object, | |
1760 | (annex ? annex : "(null)"), | |
53b71562 JB |
1761 | host_address_to_string (readbuf), |
1762 | host_address_to_string (writebuf), | |
0b1553bc UW |
1763 | core_addr_to_string_nz (offset), |
1764 | plongest (len), plongest (retval)); | |
27394598 AC |
1765 | |
1766 | if (readbuf) | |
1767 | myaddr = readbuf; | |
1768 | if (writebuf) | |
1769 | myaddr = writebuf; | |
1770 | if (retval > 0 && myaddr != NULL) | |
1771 | { | |
1772 | int i; | |
2bc416ba | 1773 | |
27394598 AC |
1774 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1775 | for (i = 0; i < retval; i++) | |
1776 | { | |
53b71562 | 1777 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1778 | { |
1779 | if (targetdebug < 2 && i > 0) | |
1780 | { | |
1781 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1782 | break; | |
1783 | } | |
1784 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1785 | } | |
2bc416ba | 1786 | |
27394598 AC |
1787 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1788 | } | |
1789 | } | |
2bc416ba | 1790 | |
27394598 AC |
1791 | fputc_unfiltered ('\n', gdb_stdlog); |
1792 | } | |
1793 | return retval; | |
1794 | } | |
1795 | ||
c906108c SS |
1796 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1797 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1798 | if any error occurs. | |
1799 | ||
1800 | If an error occurs, no guarantee is made about the contents of the data at | |
1801 | MYADDR. In particular, the caller should not depend upon partial reads | |
1802 | filling the buffer with good data. There is no way for the caller to know | |
1803 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1804 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1805 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1806 | |
1807 | int | |
1b162304 | 1808 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1809 | { |
c35b1492 PA |
1810 | /* Dispatch to the topmost target, not the flattened current_target. |
1811 | Memory accesses check target->to_has_(all_)memory, and the | |
1812 | flattened target doesn't inherit those. */ | |
1813 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1814 | myaddr, memaddr, len) == len) |
1815 | return 0; | |
0779438d | 1816 | else |
cf7a04e8 | 1817 | return EIO; |
c906108c SS |
1818 | } |
1819 | ||
4e5d721f DE |
1820 | /* Like target_read_memory, but specify explicitly that this is a read from |
1821 | the target's stack. This may trigger different cache behavior. */ | |
1822 | ||
1823 | int | |
45aa4659 | 1824 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f DE |
1825 | { |
1826 | /* Dispatch to the topmost target, not the flattened current_target. | |
1827 | Memory accesses check target->to_has_(all_)memory, and the | |
1828 | flattened target doesn't inherit those. */ | |
1829 | ||
1830 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, | |
1831 | myaddr, memaddr, len) == len) | |
1832 | return 0; | |
1833 | else | |
1834 | return EIO; | |
1835 | } | |
1836 | ||
7f79c47e DE |
1837 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
1838 | Returns either 0 for success or an errno value if any error occurs. | |
1839 | If an error occurs, no guarantee is made about how much data got written. | |
1840 | Callers that can deal with partial writes should call target_write. */ | |
1841 | ||
c906108c | 1842 | int |
45aa4659 | 1843 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1844 | { |
c35b1492 PA |
1845 | /* Dispatch to the topmost target, not the flattened current_target. |
1846 | Memory accesses check target->to_has_(all_)memory, and the | |
1847 | flattened target doesn't inherit those. */ | |
1848 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1849 | myaddr, memaddr, len) == len) |
1850 | return 0; | |
0779438d | 1851 | else |
cf7a04e8 | 1852 | return EIO; |
c906108c | 1853 | } |
c5aa993b | 1854 | |
f0ba3972 PA |
1855 | /* Write LEN bytes from MYADDR to target raw memory at address |
1856 | MEMADDR. Returns either 0 for success or an errno value if any | |
1857 | error occurs. If an error occurs, no guarantee is made about how | |
1858 | much data got written. Callers that can deal with partial writes | |
1859 | should call target_write. */ | |
1860 | ||
1861 | int | |
45aa4659 | 1862 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 PA |
1863 | { |
1864 | /* Dispatch to the topmost target, not the flattened current_target. | |
1865 | Memory accesses check target->to_has_(all_)memory, and the | |
1866 | flattened target doesn't inherit those. */ | |
1867 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1868 | myaddr, memaddr, len) == len) | |
1869 | return 0; | |
1870 | else | |
1871 | return EIO; | |
1872 | } | |
1873 | ||
fd79ecee DJ |
1874 | /* Fetch the target's memory map. */ |
1875 | ||
1876 | VEC(mem_region_s) * | |
1877 | target_memory_map (void) | |
1878 | { | |
1879 | VEC(mem_region_s) *result; | |
1880 | struct mem_region *last_one, *this_one; | |
1881 | int ix; | |
1882 | struct target_ops *t; | |
1883 | ||
1884 | if (targetdebug) | |
1885 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1886 | ||
1887 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1888 | if (t->to_memory_map != NULL) | |
1889 | break; | |
1890 | ||
1891 | if (t == NULL) | |
1892 | return NULL; | |
1893 | ||
1894 | result = t->to_memory_map (t); | |
1895 | if (result == NULL) | |
1896 | return NULL; | |
1897 | ||
1898 | qsort (VEC_address (mem_region_s, result), | |
1899 | VEC_length (mem_region_s, result), | |
1900 | sizeof (struct mem_region), mem_region_cmp); | |
1901 | ||
1902 | /* Check that regions do not overlap. Simultaneously assign | |
1903 | a numbering for the "mem" commands to use to refer to | |
1904 | each region. */ | |
1905 | last_one = NULL; | |
1906 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1907 | { | |
1908 | this_one->number = ix; | |
1909 | ||
1910 | if (last_one && last_one->hi > this_one->lo) | |
1911 | { | |
1912 | warning (_("Overlapping regions in memory map: ignoring")); | |
1913 | VEC_free (mem_region_s, result); | |
1914 | return NULL; | |
1915 | } | |
1916 | last_one = this_one; | |
1917 | } | |
1918 | ||
1919 | return result; | |
1920 | } | |
1921 | ||
a76d924d DJ |
1922 | void |
1923 | target_flash_erase (ULONGEST address, LONGEST length) | |
1924 | { | |
1925 | struct target_ops *t; | |
1926 | ||
1927 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1928 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1929 | { |
1930 | if (targetdebug) | |
1931 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1932 | hex_string (address), phex (length, 0)); | |
1933 | t->to_flash_erase (t, address, length); | |
1934 | return; | |
1935 | } | |
a76d924d DJ |
1936 | |
1937 | tcomplain (); | |
1938 | } | |
1939 | ||
1940 | void | |
1941 | target_flash_done (void) | |
1942 | { | |
1943 | struct target_ops *t; | |
1944 | ||
1945 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1946 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1947 | { |
1948 | if (targetdebug) | |
1949 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1950 | t->to_flash_done (t); | |
1951 | return; | |
1952 | } | |
a76d924d DJ |
1953 | |
1954 | tcomplain (); | |
1955 | } | |
1956 | ||
920d2a44 AC |
1957 | static void |
1958 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1959 | struct cmd_list_element *c, const char *value) | |
1960 | { | |
3e43a32a MS |
1961 | fprintf_filtered (file, |
1962 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1963 | value); |
1964 | } | |
3a11626d | 1965 | |
1e3ff5ad AC |
1966 | /* More generic transfers. */ |
1967 | ||
0088c768 | 1968 | static LONGEST |
8aa91c1e | 1969 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1970 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1971 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1972 | { |
1973 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1974 | && ops->deprecated_xfer_memory != NULL) |
1975 | /* If available, fall back to the target's | |
1976 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1977 | { |
4b8a223f | 1978 | int xfered = -1; |
5d502164 | 1979 | |
0088c768 | 1980 | errno = 0; |
4b8a223f AC |
1981 | if (writebuf != NULL) |
1982 | { | |
1983 | void *buffer = xmalloc (len); | |
1984 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1985 | |
4b8a223f | 1986 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1987 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1988 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1989 | do_cleanups (cleanup); |
1990 | } | |
1991 | if (readbuf != NULL) | |
244e85c8 MS |
1992 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1993 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1994 | if (xfered > 0) |
1995 | return xfered; | |
1996 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1997 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1998 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1999 | return 0; |
2000 | else | |
2001 | return -1; | |
2002 | } | |
2003 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
2004 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
2005 | readbuf, writebuf, offset, len); | |
2006 | else | |
2007 | return -1; | |
2008 | } | |
2009 | ||
2010 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
2011 | it does not need to handle memory specially; it just passes all | |
2012 | requests down the stack. */ | |
2013 | ||
2014 | static LONGEST | |
2015 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
2016 | const char *annex, gdb_byte *readbuf, | |
2017 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
2018 | { | |
2019 | if (ops->beneath != NULL) | |
2020 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2021 | readbuf, writebuf, offset, len); | |
0088c768 AC |
2022 | else |
2023 | return -1; | |
2024 | } | |
2025 | ||
7f79c47e | 2026 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2027 | |
13547ab6 | 2028 | static LONGEST |
1e3ff5ad AC |
2029 | target_read_partial (struct target_ops *ops, |
2030 | enum target_object object, | |
1b0ba102 | 2031 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2032 | ULONGEST offset, LONGEST len) |
2033 | { | |
27394598 | 2034 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
2035 | } |
2036 | ||
13547ab6 | 2037 | static LONGEST |
1e3ff5ad AC |
2038 | target_write_partial (struct target_ops *ops, |
2039 | enum target_object object, | |
1b0ba102 | 2040 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
2041 | ULONGEST offset, LONGEST len) |
2042 | { | |
27394598 | 2043 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
2044 | } |
2045 | ||
2046 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2047 | |
2048 | /* For docs on target_read see target.h. */ | |
2049 | ||
1e3ff5ad AC |
2050 | LONGEST |
2051 | target_read (struct target_ops *ops, | |
2052 | enum target_object object, | |
1b0ba102 | 2053 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2054 | ULONGEST offset, LONGEST len) |
2055 | { | |
2056 | LONGEST xfered = 0; | |
5d502164 | 2057 | |
1e3ff5ad AC |
2058 | while (xfered < len) |
2059 | { | |
0088c768 | 2060 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 2061 | (gdb_byte *) buf + xfered, |
0088c768 | 2062 | offset + xfered, len - xfered); |
5d502164 | 2063 | |
1e3ff5ad | 2064 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
2065 | if (xfer == 0) |
2066 | return xfered; | |
2067 | if (xfer < 0) | |
0088c768 | 2068 | return -1; |
1e3ff5ad AC |
2069 | xfered += xfer; |
2070 | QUIT; | |
2071 | } | |
2072 | return len; | |
2073 | } | |
2074 | ||
f1a507a1 JB |
2075 | /* Assuming that the entire [begin, end) range of memory cannot be |
2076 | read, try to read whatever subrange is possible to read. | |
2077 | ||
2078 | The function returns, in RESULT, either zero or one memory block. | |
2079 | If there's a readable subrange at the beginning, it is completely | |
2080 | read and returned. Any further readable subrange will not be read. | |
2081 | Otherwise, if there's a readable subrange at the end, it will be | |
2082 | completely read and returned. Any readable subranges before it | |
2083 | (obviously, not starting at the beginning), will be ignored. In | |
2084 | other cases -- either no readable subrange, or readable subrange(s) | |
2085 | that is neither at the beginning, or end, nothing is returned. | |
2086 | ||
2087 | The purpose of this function is to handle a read across a boundary | |
2088 | of accessible memory in a case when memory map is not available. | |
2089 | The above restrictions are fine for this case, but will give | |
2090 | incorrect results if the memory is 'patchy'. However, supporting | |
2091 | 'patchy' memory would require trying to read every single byte, | |
2092 | and it seems unacceptable solution. Explicit memory map is | |
2093 | recommended for this case -- and target_read_memory_robust will | |
2094 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2095 | |
2096 | static void | |
3e43a32a MS |
2097 | read_whatever_is_readable (struct target_ops *ops, |
2098 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2099 | VEC(memory_read_result_s) **result) |
d5086790 | 2100 | { |
f1a507a1 | 2101 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2102 | ULONGEST current_begin = begin; |
2103 | ULONGEST current_end = end; | |
2104 | int forward; | |
2105 | memory_read_result_s r; | |
2106 | ||
2107 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2108 | if (end - begin <= 1) | |
13b3fd9b MS |
2109 | { |
2110 | xfree (buf); | |
2111 | return; | |
2112 | } | |
8dedea02 VP |
2113 | |
2114 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2115 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2116 | at the boundary of accessible region. */ |
2117 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2118 | buf, begin, 1) == 1) | |
2119 | { | |
2120 | forward = 1; | |
2121 | ++current_begin; | |
2122 | } | |
2123 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2124 | buf + (end-begin) - 1, end - 1, 1) == 1) | |
2125 | { | |
2126 | forward = 0; | |
2127 | --current_end; | |
2128 | } | |
2129 | else | |
2130 | { | |
13b3fd9b | 2131 | xfree (buf); |
8dedea02 VP |
2132 | return; |
2133 | } | |
2134 | ||
2135 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2136 | found to be not readable as a whole. | |
2137 | ||
2138 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2139 | so there's no point trying further. */ | |
2140 | while (current_end - current_begin > 1) | |
2141 | { | |
2142 | ULONGEST first_half_begin, first_half_end; | |
2143 | ULONGEST second_half_begin, second_half_end; | |
2144 | LONGEST xfer; | |
8dedea02 | 2145 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2146 | |
8dedea02 VP |
2147 | if (forward) |
2148 | { | |
2149 | first_half_begin = current_begin; | |
2150 | first_half_end = middle; | |
2151 | second_half_begin = middle; | |
2152 | second_half_end = current_end; | |
2153 | } | |
2154 | else | |
2155 | { | |
2156 | first_half_begin = middle; | |
2157 | first_half_end = current_end; | |
2158 | second_half_begin = current_begin; | |
2159 | second_half_end = middle; | |
2160 | } | |
2161 | ||
2162 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2163 | buf + (first_half_begin - begin), | |
2164 | first_half_begin, | |
2165 | first_half_end - first_half_begin); | |
2166 | ||
2167 | if (xfer == first_half_end - first_half_begin) | |
2168 | { | |
c378eb4e | 2169 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2170 | other half. */ |
8dedea02 VP |
2171 | current_begin = second_half_begin; |
2172 | current_end = second_half_end; | |
2173 | } | |
2174 | else | |
2175 | { | |
c378eb4e MS |
2176 | /* This half is not readable. Because we've tried one byte, we |
2177 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2178 | iteration to divide again and try to read. |
2179 | ||
2180 | We don't handle the other half, because this function only tries | |
2181 | to read a single readable subrange. */ | |
2182 | current_begin = first_half_begin; | |
2183 | current_end = first_half_end; | |
2184 | } | |
2185 | } | |
2186 | ||
2187 | if (forward) | |
2188 | { | |
2189 | /* The [begin, current_begin) range has been read. */ | |
2190 | r.begin = begin; | |
2191 | r.end = current_begin; | |
2192 | r.data = buf; | |
2193 | } | |
2194 | else | |
2195 | { | |
2196 | /* The [current_end, end) range has been read. */ | |
2197 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2198 | |
8dedea02 VP |
2199 | r.data = xmalloc (rlen); |
2200 | memcpy (r.data, buf + current_end - begin, rlen); | |
2201 | r.begin = current_end; | |
2202 | r.end = end; | |
2203 | xfree (buf); | |
2204 | } | |
2205 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2206 | } | |
2207 | ||
2208 | void | |
2209 | free_memory_read_result_vector (void *x) | |
2210 | { | |
2211 | VEC(memory_read_result_s) *v = x; | |
2212 | memory_read_result_s *current; | |
2213 | int ix; | |
2214 | ||
2215 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2216 | { | |
2217 | xfree (current->data); | |
2218 | } | |
2219 | VEC_free (memory_read_result_s, v); | |
2220 | } | |
2221 | ||
2222 | VEC(memory_read_result_s) * | |
2223 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2224 | { | |
2225 | VEC(memory_read_result_s) *result = 0; | |
2226 | ||
2227 | LONGEST xfered = 0; | |
d5086790 VP |
2228 | while (xfered < len) |
2229 | { | |
8dedea02 VP |
2230 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2231 | LONGEST rlen; | |
5d502164 | 2232 | |
8dedea02 VP |
2233 | /* If there is no explicit region, a fake one should be created. */ |
2234 | gdb_assert (region); | |
2235 | ||
2236 | if (region->hi == 0) | |
2237 | rlen = len - xfered; | |
2238 | else | |
2239 | rlen = region->hi - offset; | |
2240 | ||
2241 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2242 | { |
c378eb4e | 2243 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2244 | if the region is explicitly marked inaccessible, or |
2245 | 'inaccessible-by-default' is in effect. */ | |
2246 | xfered += rlen; | |
2247 | } | |
2248 | else | |
2249 | { | |
2250 | LONGEST to_read = min (len - xfered, rlen); | |
2251 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2252 | ||
2253 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2254 | (gdb_byte *) buffer, | |
2255 | offset + xfered, to_read); | |
2256 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2257 | if (xfer <= 0) |
d5086790 | 2258 | { |
c378eb4e | 2259 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2260 | some subrange. */ |
2261 | xfree (buffer); | |
3e43a32a MS |
2262 | read_whatever_is_readable (ops, offset + xfered, |
2263 | offset + xfered + to_read, &result); | |
8dedea02 | 2264 | xfered += to_read; |
d5086790 | 2265 | } |
8dedea02 VP |
2266 | else |
2267 | { | |
2268 | struct memory_read_result r; | |
2269 | r.data = buffer; | |
2270 | r.begin = offset + xfered; | |
2271 | r.end = r.begin + xfer; | |
2272 | VEC_safe_push (memory_read_result_s, result, &r); | |
2273 | xfered += xfer; | |
2274 | } | |
2275 | QUIT; | |
d5086790 | 2276 | } |
d5086790 | 2277 | } |
8dedea02 | 2278 | return result; |
d5086790 VP |
2279 | } |
2280 | ||
8dedea02 | 2281 | |
cf7a04e8 DJ |
2282 | /* An alternative to target_write with progress callbacks. */ |
2283 | ||
1e3ff5ad | 2284 | LONGEST |
cf7a04e8 DJ |
2285 | target_write_with_progress (struct target_ops *ops, |
2286 | enum target_object object, | |
2287 | const char *annex, const gdb_byte *buf, | |
2288 | ULONGEST offset, LONGEST len, | |
2289 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2290 | { |
2291 | LONGEST xfered = 0; | |
a76d924d DJ |
2292 | |
2293 | /* Give the progress callback a chance to set up. */ | |
2294 | if (progress) | |
2295 | (*progress) (0, baton); | |
2296 | ||
1e3ff5ad AC |
2297 | while (xfered < len) |
2298 | { | |
2299 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 2300 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 2301 | offset + xfered, len - xfered); |
cf7a04e8 | 2302 | |
13547ab6 DJ |
2303 | if (xfer == 0) |
2304 | return xfered; | |
2305 | if (xfer < 0) | |
0088c768 | 2306 | return -1; |
cf7a04e8 DJ |
2307 | |
2308 | if (progress) | |
2309 | (*progress) (xfer, baton); | |
2310 | ||
1e3ff5ad AC |
2311 | xfered += xfer; |
2312 | QUIT; | |
2313 | } | |
2314 | return len; | |
2315 | } | |
2316 | ||
7f79c47e DE |
2317 | /* For docs on target_write see target.h. */ |
2318 | ||
cf7a04e8 DJ |
2319 | LONGEST |
2320 | target_write (struct target_ops *ops, | |
2321 | enum target_object object, | |
2322 | const char *annex, const gdb_byte *buf, | |
2323 | ULONGEST offset, LONGEST len) | |
2324 | { | |
2325 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2326 | NULL, NULL); | |
2327 | } | |
2328 | ||
159f81f3 DJ |
2329 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2330 | the size of the transferred data. PADDING additional bytes are | |
2331 | available in *BUF_P. This is a helper function for | |
2332 | target_read_alloc; see the declaration of that function for more | |
2333 | information. */ | |
13547ab6 | 2334 | |
159f81f3 DJ |
2335 | static LONGEST |
2336 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2337 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2338 | { |
2339 | size_t buf_alloc, buf_pos; | |
2340 | gdb_byte *buf; | |
2341 | LONGEST n; | |
2342 | ||
2343 | /* This function does not have a length parameter; it reads the | |
2344 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2345 | from one target and partly from another (in a different stratum, | |
2346 | e.g. a core file and an executable). Both reasons make it | |
2347 | unsuitable for reading memory. */ | |
2348 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2349 | ||
2350 | /* Start by reading up to 4K at a time. The target will throttle | |
2351 | this number down if necessary. */ | |
2352 | buf_alloc = 4096; | |
2353 | buf = xmalloc (buf_alloc); | |
2354 | buf_pos = 0; | |
2355 | while (1) | |
2356 | { | |
2357 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 2358 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
2359 | if (n < 0) |
2360 | { | |
2361 | /* An error occurred. */ | |
2362 | xfree (buf); | |
2363 | return -1; | |
2364 | } | |
2365 | else if (n == 0) | |
2366 | { | |
2367 | /* Read all there was. */ | |
2368 | if (buf_pos == 0) | |
2369 | xfree (buf); | |
2370 | else | |
2371 | *buf_p = buf; | |
2372 | return buf_pos; | |
2373 | } | |
2374 | ||
2375 | buf_pos += n; | |
2376 | ||
2377 | /* If the buffer is filling up, expand it. */ | |
2378 | if (buf_alloc < buf_pos * 2) | |
2379 | { | |
2380 | buf_alloc *= 2; | |
2381 | buf = xrealloc (buf, buf_alloc); | |
2382 | } | |
2383 | ||
2384 | QUIT; | |
2385 | } | |
2386 | } | |
2387 | ||
159f81f3 DJ |
2388 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2389 | the size of the transferred data. See the declaration in "target.h" | |
2390 | function for more information about the return value. */ | |
2391 | ||
2392 | LONGEST | |
2393 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2394 | const char *annex, gdb_byte **buf_p) | |
2395 | { | |
2396 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2397 | } | |
2398 | ||
2399 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2400 | returned as a string, allocated using xmalloc. If an error occurs | |
2401 | or the transfer is unsupported, NULL is returned. Empty objects | |
2402 | are returned as allocated but empty strings. A warning is issued | |
2403 | if the result contains any embedded NUL bytes. */ | |
2404 | ||
2405 | char * | |
2406 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2407 | const char *annex) | |
2408 | { | |
39086a0e PA |
2409 | gdb_byte *buffer; |
2410 | char *bufstr; | |
7313baad | 2411 | LONGEST i, transferred; |
159f81f3 | 2412 | |
39086a0e PA |
2413 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2414 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2415 | |
2416 | if (transferred < 0) | |
2417 | return NULL; | |
2418 | ||
2419 | if (transferred == 0) | |
2420 | return xstrdup (""); | |
2421 | ||
39086a0e | 2422 | bufstr[transferred] = 0; |
7313baad UW |
2423 | |
2424 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2425 | for (i = strlen (bufstr); i < transferred; i++) |
2426 | if (bufstr[i] != 0) | |
7313baad UW |
2427 | { |
2428 | warning (_("target object %d, annex %s, " | |
2429 | "contained unexpected null characters"), | |
2430 | (int) object, annex ? annex : "(none)"); | |
2431 | break; | |
2432 | } | |
159f81f3 | 2433 | |
39086a0e | 2434 | return bufstr; |
159f81f3 DJ |
2435 | } |
2436 | ||
b6591e8b AC |
2437 | /* Memory transfer methods. */ |
2438 | ||
2439 | void | |
1b0ba102 | 2440 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2441 | LONGEST len) |
2442 | { | |
07b82ea5 PA |
2443 | /* This method is used to read from an alternate, non-current |
2444 | target. This read must bypass the overlay support (as symbols | |
2445 | don't match this target), and GDB's internal cache (wrong cache | |
2446 | for this target). */ | |
2447 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b AC |
2448 | != len) |
2449 | memory_error (EIO, addr); | |
2450 | } | |
2451 | ||
2452 | ULONGEST | |
5d502164 MS |
2453 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2454 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2455 | { |
f6519ebc | 2456 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2457 | |
2458 | gdb_assert (len <= sizeof (buf)); | |
2459 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2460 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2461 | } |
2462 | ||
d914c394 SS |
2463 | int |
2464 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2465 | struct bp_target_info *bp_tgt) | |
2466 | { | |
2467 | if (!may_insert_breakpoints) | |
2468 | { | |
2469 | warning (_("May not insert breakpoints")); | |
2470 | return 1; | |
2471 | } | |
2472 | ||
2473 | return (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt); | |
2474 | } | |
2475 | ||
2476 | int | |
2477 | target_remove_breakpoint (struct gdbarch *gdbarch, | |
2478 | struct bp_target_info *bp_tgt) | |
2479 | { | |
2480 | /* This is kind of a weird case to handle, but the permission might | |
2481 | have been changed after breakpoints were inserted - in which case | |
2482 | we should just take the user literally and assume that any | |
2483 | breakpoints should be left in place. */ | |
2484 | if (!may_insert_breakpoints) | |
2485 | { | |
2486 | warning (_("May not remove breakpoints")); | |
2487 | return 1; | |
2488 | } | |
2489 | ||
2490 | return (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt); | |
2491 | } | |
2492 | ||
c906108c | 2493 | static void |
fba45db2 | 2494 | target_info (char *args, int from_tty) |
c906108c SS |
2495 | { |
2496 | struct target_ops *t; | |
c906108c | 2497 | int has_all_mem = 0; |
c5aa993b | 2498 | |
c906108c | 2499 | if (symfile_objfile != NULL) |
a3f17187 | 2500 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 2501 | |
258b763a | 2502 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2503 | { |
c35b1492 | 2504 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2505 | continue; |
2506 | ||
c5aa993b | 2507 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2508 | continue; |
2509 | if (has_all_mem) | |
3e43a32a MS |
2510 | printf_unfiltered (_("\tWhile running this, " |
2511 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2512 | printf_unfiltered ("%s:\n", t->to_longname); |
2513 | (t->to_files_info) (t); | |
c35b1492 | 2514 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2515 | } |
2516 | } | |
2517 | ||
fd79ecee DJ |
2518 | /* This function is called before any new inferior is created, e.g. |
2519 | by running a program, attaching, or connecting to a target. | |
2520 | It cleans up any state from previous invocations which might | |
2521 | change between runs. This is a subset of what target_preopen | |
2522 | resets (things which might change between targets). */ | |
2523 | ||
2524 | void | |
2525 | target_pre_inferior (int from_tty) | |
2526 | { | |
c378eb4e | 2527 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2528 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2529 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2530 | to reproduce: |
2531 | ||
2532 | bash$ ./foo& | |
2533 | [1] 4711 | |
2534 | bash$ ./foo& | |
2535 | [1] 4712 | |
2536 | bash$ gdb ./foo | |
2537 | [...] | |
2538 | (gdb) attach 4711 | |
2539 | (gdb) detach | |
2540 | (gdb) attach 4712 | |
2541 | Cannot access memory at address 0xdeadbeef | |
2542 | */ | |
b9db4ced | 2543 | |
50c71eaf PA |
2544 | /* In some OSs, the shared library list is the same/global/shared |
2545 | across inferiors. If code is shared between processes, so are | |
2546 | memory regions and features. */ | |
f5656ead | 2547 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2548 | { |
2549 | no_shared_libraries (NULL, from_tty); | |
2550 | ||
2551 | invalidate_target_mem_regions (); | |
424163ea | 2552 | |
50c71eaf PA |
2553 | target_clear_description (); |
2554 | } | |
8ffcbaaf YQ |
2555 | |
2556 | agent_capability_invalidate (); | |
fd79ecee DJ |
2557 | } |
2558 | ||
b8fa0bfa PA |
2559 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2560 | inferior. */ | |
2561 | ||
2562 | static int | |
2563 | dispose_inferior (struct inferior *inf, void *args) | |
2564 | { | |
2565 | struct thread_info *thread; | |
2566 | ||
2567 | thread = any_thread_of_process (inf->pid); | |
2568 | if (thread) | |
2569 | { | |
2570 | switch_to_thread (thread->ptid); | |
2571 | ||
2572 | /* Core inferiors actually should be detached, not killed. */ | |
2573 | if (target_has_execution) | |
2574 | target_kill (); | |
2575 | else | |
2576 | target_detach (NULL, 0); | |
2577 | } | |
2578 | ||
2579 | return 0; | |
2580 | } | |
2581 | ||
c906108c SS |
2582 | /* This is to be called by the open routine before it does |
2583 | anything. */ | |
2584 | ||
2585 | void | |
fba45db2 | 2586 | target_preopen (int from_tty) |
c906108c | 2587 | { |
c5aa993b | 2588 | dont_repeat (); |
c906108c | 2589 | |
b8fa0bfa | 2590 | if (have_inferiors ()) |
c5aa993b | 2591 | { |
adf40b2e | 2592 | if (!from_tty |
b8fa0bfa PA |
2593 | || !have_live_inferiors () |
2594 | || query (_("A program is being debugged already. Kill it? "))) | |
2595 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2596 | else |
8a3fe4f8 | 2597 | error (_("Program not killed.")); |
c906108c SS |
2598 | } |
2599 | ||
2600 | /* Calling target_kill may remove the target from the stack. But if | |
2601 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2602 | /* Leave the exec target, though. The user may be switching from a |
2603 | live process to a core of the same program. */ | |
460014f5 | 2604 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2605 | |
2606 | target_pre_inferior (from_tty); | |
c906108c SS |
2607 | } |
2608 | ||
2609 | /* Detach a target after doing deferred register stores. */ | |
2610 | ||
2611 | void | |
fba45db2 | 2612 | target_detach (char *args, int from_tty) |
c906108c | 2613 | { |
136d6dae VP |
2614 | struct target_ops* t; |
2615 | ||
f5656ead | 2616 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2617 | /* Don't remove global breakpoints here. They're removed on |
2618 | disconnection from the target. */ | |
2619 | ; | |
2620 | else | |
2621 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2622 | them before detaching. */ | |
6c95b8df | 2623 | remove_breakpoints_pid (PIDGET (inferior_ptid)); |
74960c60 | 2624 | |
24291992 PA |
2625 | prepare_for_detach (); |
2626 | ||
136d6dae VP |
2627 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2628 | { | |
2629 | if (t->to_detach != NULL) | |
2630 | { | |
2631 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2632 | if (targetdebug) |
2633 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2634 | args, from_tty); | |
136d6dae VP |
2635 | return; |
2636 | } | |
2637 | } | |
2638 | ||
9b20d036 | 2639 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2640 | } |
2641 | ||
6ad8ae5c DJ |
2642 | void |
2643 | target_disconnect (char *args, int from_tty) | |
2644 | { | |
597320e7 DJ |
2645 | struct target_ops *t; |
2646 | ||
50c71eaf PA |
2647 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2648 | are global across processes, we have to remove them before | |
2649 | disconnecting. */ | |
74960c60 VP |
2650 | remove_breakpoints (); |
2651 | ||
597320e7 DJ |
2652 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2653 | if (t->to_disconnect != NULL) | |
2654 | { | |
2655 | if (targetdebug) | |
2656 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2657 | args, from_tty); | |
2658 | t->to_disconnect (t, args, from_tty); | |
2659 | return; | |
2660 | } | |
2661 | ||
2662 | tcomplain (); | |
6ad8ae5c DJ |
2663 | } |
2664 | ||
117de6a9 | 2665 | ptid_t |
47608cb1 | 2666 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2667 | { |
2668 | struct target_ops *t; | |
2669 | ||
2670 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2671 | { | |
2672 | if (t->to_wait != NULL) | |
2673 | { | |
47608cb1 | 2674 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
2675 | |
2676 | if (targetdebug) | |
2677 | { | |
2678 | char *status_string; | |
09826ec5 | 2679 | char *options_string; |
117de6a9 PA |
2680 | |
2681 | status_string = target_waitstatus_to_string (status); | |
09826ec5 | 2682 | options_string = target_options_to_string (options); |
117de6a9 | 2683 | fprintf_unfiltered (gdb_stdlog, |
09826ec5 PA |
2684 | "target_wait (%d, status, options={%s})" |
2685 | " = %d, %s\n", | |
2686 | PIDGET (ptid), options_string, | |
2687 | PIDGET (retval), status_string); | |
117de6a9 | 2688 | xfree (status_string); |
09826ec5 | 2689 | xfree (options_string); |
117de6a9 PA |
2690 | } |
2691 | ||
2692 | return retval; | |
2693 | } | |
2694 | } | |
2695 | ||
2696 | noprocess (); | |
2697 | } | |
2698 | ||
2699 | char * | |
2700 | target_pid_to_str (ptid_t ptid) | |
2701 | { | |
2702 | struct target_ops *t; | |
2703 | ||
2704 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2705 | { | |
2706 | if (t->to_pid_to_str != NULL) | |
2707 | return (*t->to_pid_to_str) (t, ptid); | |
2708 | } | |
2709 | ||
2710 | return normal_pid_to_str (ptid); | |
2711 | } | |
2712 | ||
4694da01 TT |
2713 | char * |
2714 | target_thread_name (struct thread_info *info) | |
2715 | { | |
2716 | struct target_ops *t; | |
2717 | ||
2718 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2719 | { | |
2720 | if (t->to_thread_name != NULL) | |
2721 | return (*t->to_thread_name) (info); | |
2722 | } | |
2723 | ||
2724 | return NULL; | |
2725 | } | |
2726 | ||
e1ac3328 | 2727 | void |
2ea28649 | 2728 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2729 | { |
28439f5e PA |
2730 | struct target_ops *t; |
2731 | ||
4e5d721f | 2732 | target_dcache_invalidate (); |
28439f5e PA |
2733 | |
2734 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2735 | { | |
2736 | if (t->to_resume != NULL) | |
2737 | { | |
2738 | t->to_resume (t, ptid, step, signal); | |
2739 | if (targetdebug) | |
2740 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2741 | PIDGET (ptid), | |
2742 | step ? "step" : "continue", | |
2ea28649 | 2743 | gdb_signal_to_name (signal)); |
28439f5e | 2744 | |
e66408ed | 2745 | registers_changed_ptid (ptid); |
28439f5e PA |
2746 | set_executing (ptid, 1); |
2747 | set_running (ptid, 1); | |
edb3359d | 2748 | clear_inline_frame_state (ptid); |
28439f5e PA |
2749 | return; |
2750 | } | |
2751 | } | |
2752 | ||
2753 | noprocess (); | |
e1ac3328 | 2754 | } |
2455069d UW |
2755 | |
2756 | void | |
2757 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2758 | { | |
2759 | struct target_ops *t; | |
2760 | ||
2761 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2762 | { | |
2763 | if (t->to_pass_signals != NULL) | |
2764 | { | |
2765 | if (targetdebug) | |
2766 | { | |
2767 | int i; | |
2768 | ||
2769 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2770 | numsigs); | |
2771 | ||
2772 | for (i = 0; i < numsigs; i++) | |
2773 | if (pass_signals[i]) | |
2774 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2775 | gdb_signal_to_name (i)); |
2455069d UW |
2776 | |
2777 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2778 | } | |
2779 | ||
2780 | (*t->to_pass_signals) (numsigs, pass_signals); | |
2781 | return; | |
2782 | } | |
2783 | } | |
2784 | } | |
2785 | ||
9b224c5e PA |
2786 | void |
2787 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2788 | { | |
2789 | struct target_ops *t; | |
2790 | ||
2791 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2792 | { | |
2793 | if (t->to_program_signals != NULL) | |
2794 | { | |
2795 | if (targetdebug) | |
2796 | { | |
2797 | int i; | |
2798 | ||
2799 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2800 | numsigs); | |
2801 | ||
2802 | for (i = 0; i < numsigs; i++) | |
2803 | if (program_signals[i]) | |
2804 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2805 | gdb_signal_to_name (i)); |
9b224c5e PA |
2806 | |
2807 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2808 | } | |
2809 | ||
2810 | (*t->to_program_signals) (numsigs, program_signals); | |
2811 | return; | |
2812 | } | |
2813 | } | |
2814 | } | |
2815 | ||
ee057212 DJ |
2816 | /* Look through the list of possible targets for a target that can |
2817 | follow forks. */ | |
2818 | ||
2819 | int | |
2820 | target_follow_fork (int follow_child) | |
2821 | { | |
2822 | struct target_ops *t; | |
2823 | ||
2824 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2825 | { | |
2826 | if (t->to_follow_fork != NULL) | |
2827 | { | |
2828 | int retval = t->to_follow_fork (t, follow_child); | |
5d502164 | 2829 | |
ee057212 DJ |
2830 | if (targetdebug) |
2831 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
2832 | follow_child, retval); | |
2833 | return retval; | |
2834 | } | |
2835 | } | |
2836 | ||
2837 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2838 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2839 | _("could not find a target to follow fork")); |
ee057212 DJ |
2840 | } |
2841 | ||
136d6dae VP |
2842 | void |
2843 | target_mourn_inferior (void) | |
2844 | { | |
2845 | struct target_ops *t; | |
5d502164 | 2846 | |
136d6dae VP |
2847 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2848 | { | |
2849 | if (t->to_mourn_inferior != NULL) | |
2850 | { | |
2851 | t->to_mourn_inferior (t); | |
947b8855 PA |
2852 | if (targetdebug) |
2853 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2854 | |
2855 | /* We no longer need to keep handles on any of the object files. | |
2856 | Make sure to release them to avoid unnecessarily locking any | |
2857 | of them while we're not actually debugging. */ | |
2858 | bfd_cache_close_all (); | |
2859 | ||
136d6dae VP |
2860 | return; |
2861 | } | |
2862 | } | |
2863 | ||
2864 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2865 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2866 | } |
2867 | ||
424163ea DJ |
2868 | /* Look for a target which can describe architectural features, starting |
2869 | from TARGET. If we find one, return its description. */ | |
2870 | ||
2871 | const struct target_desc * | |
2872 | target_read_description (struct target_ops *target) | |
2873 | { | |
2874 | struct target_ops *t; | |
2875 | ||
2876 | for (t = target; t != NULL; t = t->beneath) | |
2877 | if (t->to_read_description != NULL) | |
2878 | { | |
2879 | const struct target_desc *tdesc; | |
2880 | ||
2881 | tdesc = t->to_read_description (t); | |
2882 | if (tdesc) | |
2883 | return tdesc; | |
2884 | } | |
2885 | ||
2886 | return NULL; | |
2887 | } | |
2888 | ||
08388c79 DE |
2889 | /* The default implementation of to_search_memory. |
2890 | This implements a basic search of memory, reading target memory and | |
2891 | performing the search here (as opposed to performing the search in on the | |
2892 | target side with, for example, gdbserver). */ | |
2893 | ||
2894 | int | |
2895 | simple_search_memory (struct target_ops *ops, | |
2896 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2897 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2898 | CORE_ADDR *found_addrp) | |
2899 | { | |
2900 | /* NOTE: also defined in find.c testcase. */ | |
2901 | #define SEARCH_CHUNK_SIZE 16000 | |
2902 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2903 | /* Buffer to hold memory contents for searching. */ | |
2904 | gdb_byte *search_buf; | |
2905 | unsigned search_buf_size; | |
2906 | struct cleanup *old_cleanups; | |
2907 | ||
2908 | search_buf_size = chunk_size + pattern_len - 1; | |
2909 | ||
2910 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2911 | if (search_space_len < search_buf_size) | |
2912 | search_buf_size = search_space_len; | |
2913 | ||
2914 | search_buf = malloc (search_buf_size); | |
2915 | if (search_buf == NULL) | |
5e1471f5 | 2916 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2917 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2918 | ||
2919 | /* Prime the search buffer. */ | |
2920 | ||
2921 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2922 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2923 | { | |
b3dc46ff AB |
2924 | warning (_("Unable to access %s bytes of target " |
2925 | "memory at %s, halting search."), | |
2926 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2927 | do_cleanups (old_cleanups); |
2928 | return -1; | |
2929 | } | |
2930 | ||
2931 | /* Perform the search. | |
2932 | ||
2933 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2934 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2935 | read in another N bytes. */ | |
2936 | ||
2937 | while (search_space_len >= pattern_len) | |
2938 | { | |
2939 | gdb_byte *found_ptr; | |
2940 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2941 | ||
2942 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2943 | pattern, pattern_len); | |
2944 | ||
2945 | if (found_ptr != NULL) | |
2946 | { | |
2947 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2948 | |
08388c79 DE |
2949 | *found_addrp = found_addr; |
2950 | do_cleanups (old_cleanups); | |
2951 | return 1; | |
2952 | } | |
2953 | ||
2954 | /* Not found in this chunk, skip to next chunk. */ | |
2955 | ||
2956 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2957 | if (search_space_len >= chunk_size) | |
2958 | search_space_len -= chunk_size; | |
2959 | else | |
2960 | search_space_len = 0; | |
2961 | ||
2962 | if (search_space_len >= pattern_len) | |
2963 | { | |
2964 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2965 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2966 | int nr_to_read; |
2967 | ||
2968 | /* Copy the trailing part of the previous iteration to the front | |
2969 | of the buffer for the next iteration. */ | |
2970 | gdb_assert (keep_len == pattern_len - 1); | |
2971 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2972 | ||
2973 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2974 | ||
2975 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2976 | search_buf + keep_len, read_addr, | |
2977 | nr_to_read) != nr_to_read) | |
2978 | { | |
b3dc46ff | 2979 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2980 | "memory at %s, halting search."), |
b3dc46ff | 2981 | plongest (nr_to_read), |
08388c79 DE |
2982 | hex_string (read_addr)); |
2983 | do_cleanups (old_cleanups); | |
2984 | return -1; | |
2985 | } | |
2986 | ||
2987 | start_addr += chunk_size; | |
2988 | } | |
2989 | } | |
2990 | ||
2991 | /* Not found. */ | |
2992 | ||
2993 | do_cleanups (old_cleanups); | |
2994 | return 0; | |
2995 | } | |
2996 | ||
2997 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2998 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2999 | ||
3000 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
3001 | requiring halting of the search (e.g. memory read error). | |
3002 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
3003 | ||
3004 | int | |
3005 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
3006 | const gdb_byte *pattern, ULONGEST pattern_len, | |
3007 | CORE_ADDR *found_addrp) | |
3008 | { | |
3009 | struct target_ops *t; | |
3010 | int found; | |
3011 | ||
3012 | /* We don't use INHERIT to set current_target.to_search_memory, | |
3013 | so we have to scan the target stack and handle targetdebug | |
3014 | ourselves. */ | |
3015 | ||
3016 | if (targetdebug) | |
3017 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3018 | hex_string (start_addr)); | |
3019 | ||
3020 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3021 | if (t->to_search_memory != NULL) | |
3022 | break; | |
3023 | ||
3024 | if (t != NULL) | |
3025 | { | |
3026 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3027 | pattern, pattern_len, found_addrp); | |
3028 | } | |
3029 | else | |
3030 | { | |
3031 | /* If a special version of to_search_memory isn't available, use the | |
3032 | simple version. */ | |
c35b1492 | 3033 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3034 | start_addr, search_space_len, |
3035 | pattern, pattern_len, found_addrp); | |
3036 | } | |
3037 | ||
3038 | if (targetdebug) | |
3039 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3040 | ||
3041 | return found; | |
3042 | } | |
3043 | ||
8edfe269 DJ |
3044 | /* Look through the currently pushed targets. If none of them will |
3045 | be able to restart the currently running process, issue an error | |
3046 | message. */ | |
3047 | ||
3048 | void | |
3049 | target_require_runnable (void) | |
3050 | { | |
3051 | struct target_ops *t; | |
3052 | ||
3053 | for (t = target_stack; t != NULL; t = t->beneath) | |
3054 | { | |
3055 | /* If this target knows how to create a new program, then | |
3056 | assume we will still be able to after killing the current | |
3057 | one. Either killing and mourning will not pop T, or else | |
3058 | find_default_run_target will find it again. */ | |
3059 | if (t->to_create_inferior != NULL) | |
3060 | return; | |
3061 | ||
3062 | /* Do not worry about thread_stratum targets that can not | |
3063 | create inferiors. Assume they will be pushed again if | |
3064 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3065 | if (t->to_stratum == thread_stratum |
3066 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3067 | continue; |
3068 | ||
3e43a32a MS |
3069 | error (_("The \"%s\" target does not support \"run\". " |
3070 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3071 | t->to_shortname); |
3072 | } | |
3073 | ||
3074 | /* This function is only called if the target is running. In that | |
3075 | case there should have been a process_stratum target and it | |
c378eb4e | 3076 | should either know how to create inferiors, or not... */ |
9b20d036 | 3077 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3078 | } |
3079 | ||
c906108c SS |
3080 | /* Look through the list of possible targets for a target that can |
3081 | execute a run or attach command without any other data. This is | |
3082 | used to locate the default process stratum. | |
3083 | ||
5f667f2d PA |
3084 | If DO_MESG is not NULL, the result is always valid (error() is |
3085 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3086 | |
3087 | static struct target_ops * | |
fba45db2 | 3088 | find_default_run_target (char *do_mesg) |
c906108c SS |
3089 | { |
3090 | struct target_ops **t; | |
3091 | struct target_ops *runable = NULL; | |
3092 | int count; | |
3093 | ||
3094 | count = 0; | |
3095 | ||
3096 | for (t = target_structs; t < target_structs + target_struct_size; | |
3097 | ++t) | |
3098 | { | |
c5aa993b | 3099 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3100 | { |
3101 | runable = *t; | |
3102 | ++count; | |
3103 | } | |
3104 | } | |
3105 | ||
3106 | if (count != 1) | |
5f667f2d PA |
3107 | { |
3108 | if (do_mesg) | |
3109 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3110 | else | |
3111 | return NULL; | |
3112 | } | |
c906108c SS |
3113 | |
3114 | return runable; | |
3115 | } | |
3116 | ||
3117 | void | |
136d6dae | 3118 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3119 | { |
3120 | struct target_ops *t; | |
3121 | ||
c5aa993b | 3122 | t = find_default_run_target ("attach"); |
136d6dae | 3123 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3124 | return; |
3125 | } | |
3126 | ||
c906108c | 3127 | void |
136d6dae VP |
3128 | find_default_create_inferior (struct target_ops *ops, |
3129 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3130 | int from_tty) |
c906108c SS |
3131 | { |
3132 | struct target_ops *t; | |
3133 | ||
c5aa993b | 3134 | t = find_default_run_target ("run"); |
136d6dae | 3135 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3136 | return; |
3137 | } | |
3138 | ||
2c0b251b | 3139 | static int |
b84876c2 PA |
3140 | find_default_can_async_p (void) |
3141 | { | |
3142 | struct target_ops *t; | |
3143 | ||
5f667f2d PA |
3144 | /* This may be called before the target is pushed on the stack; |
3145 | look for the default process stratum. If there's none, gdb isn't | |
3146 | configured with a native debugger, and target remote isn't | |
3147 | connected yet. */ | |
3148 | t = find_default_run_target (NULL); | |
3149 | if (t && t->to_can_async_p) | |
b84876c2 PA |
3150 | return (t->to_can_async_p) (); |
3151 | return 0; | |
3152 | } | |
3153 | ||
2c0b251b | 3154 | static int |
b84876c2 PA |
3155 | find_default_is_async_p (void) |
3156 | { | |
3157 | struct target_ops *t; | |
3158 | ||
5f667f2d PA |
3159 | /* This may be called before the target is pushed on the stack; |
3160 | look for the default process stratum. If there's none, gdb isn't | |
3161 | configured with a native debugger, and target remote isn't | |
3162 | connected yet. */ | |
3163 | t = find_default_run_target (NULL); | |
3164 | if (t && t->to_is_async_p) | |
b84876c2 PA |
3165 | return (t->to_is_async_p) (); |
3166 | return 0; | |
3167 | } | |
3168 | ||
2c0b251b | 3169 | static int |
9908b566 VP |
3170 | find_default_supports_non_stop (void) |
3171 | { | |
3172 | struct target_ops *t; | |
3173 | ||
3174 | t = find_default_run_target (NULL); | |
3175 | if (t && t->to_supports_non_stop) | |
3176 | return (t->to_supports_non_stop) (); | |
3177 | return 0; | |
3178 | } | |
3179 | ||
3180 | int | |
2c0b251b | 3181 | target_supports_non_stop (void) |
9908b566 VP |
3182 | { |
3183 | struct target_ops *t; | |
5d502164 | 3184 | |
9908b566 VP |
3185 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3186 | if (t->to_supports_non_stop) | |
3187 | return t->to_supports_non_stop (); | |
3188 | ||
3189 | return 0; | |
3190 | } | |
3191 | ||
145b16a9 UW |
3192 | /* Implement the "info proc" command. */ |
3193 | ||
451b7c33 | 3194 | int |
145b16a9 UW |
3195 | target_info_proc (char *args, enum info_proc_what what) |
3196 | { | |
3197 | struct target_ops *t; | |
3198 | ||
3199 | /* If we're already connected to something that can get us OS | |
3200 | related data, use it. Otherwise, try using the native | |
3201 | target. */ | |
3202 | if (current_target.to_stratum >= process_stratum) | |
3203 | t = current_target.beneath; | |
3204 | else | |
3205 | t = find_default_run_target (NULL); | |
3206 | ||
3207 | for (; t != NULL; t = t->beneath) | |
3208 | { | |
3209 | if (t->to_info_proc != NULL) | |
3210 | { | |
3211 | t->to_info_proc (t, args, what); | |
3212 | ||
3213 | if (targetdebug) | |
3214 | fprintf_unfiltered (gdb_stdlog, | |
3215 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3216 | ||
451b7c33 | 3217 | return 1; |
145b16a9 UW |
3218 | } |
3219 | } | |
3220 | ||
451b7c33 | 3221 | return 0; |
145b16a9 UW |
3222 | } |
3223 | ||
03583c20 UW |
3224 | static int |
3225 | find_default_supports_disable_randomization (void) | |
3226 | { | |
3227 | struct target_ops *t; | |
3228 | ||
3229 | t = find_default_run_target (NULL); | |
3230 | if (t && t->to_supports_disable_randomization) | |
3231 | return (t->to_supports_disable_randomization) (); | |
3232 | return 0; | |
3233 | } | |
3234 | ||
3235 | int | |
3236 | target_supports_disable_randomization (void) | |
3237 | { | |
3238 | struct target_ops *t; | |
3239 | ||
3240 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3241 | if (t->to_supports_disable_randomization) | |
3242 | return t->to_supports_disable_randomization (); | |
3243 | ||
3244 | return 0; | |
3245 | } | |
9908b566 | 3246 | |
07e059b5 VP |
3247 | char * |
3248 | target_get_osdata (const char *type) | |
3249 | { | |
07e059b5 VP |
3250 | struct target_ops *t; |
3251 | ||
739ef7fb PA |
3252 | /* If we're already connected to something that can get us OS |
3253 | related data, use it. Otherwise, try using the native | |
3254 | target. */ | |
3255 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3256 | t = current_target.beneath; |
739ef7fb PA |
3257 | else |
3258 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3259 | |
3260 | if (!t) | |
3261 | return NULL; | |
3262 | ||
6d097e65 | 3263 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3264 | } |
3265 | ||
6c95b8df PA |
3266 | /* Determine the current address space of thread PTID. */ |
3267 | ||
3268 | struct address_space * | |
3269 | target_thread_address_space (ptid_t ptid) | |
3270 | { | |
c0694254 | 3271 | struct address_space *aspace; |
6c95b8df | 3272 | struct inferior *inf; |
c0694254 PA |
3273 | struct target_ops *t; |
3274 | ||
3275 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3276 | { | |
3277 | if (t->to_thread_address_space != NULL) | |
3278 | { | |
3279 | aspace = t->to_thread_address_space (t, ptid); | |
3280 | gdb_assert (aspace); | |
6c95b8df | 3281 | |
c0694254 PA |
3282 | if (targetdebug) |
3283 | fprintf_unfiltered (gdb_stdlog, | |
3284 | "target_thread_address_space (%s) = %d\n", | |
3285 | target_pid_to_str (ptid), | |
3286 | address_space_num (aspace)); | |
3287 | return aspace; | |
3288 | } | |
3289 | } | |
6c95b8df PA |
3290 | |
3291 | /* Fall-back to the "main" address space of the inferior. */ | |
3292 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3293 | ||
3294 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3295 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3296 | _("Can't determine the current " |
3297 | "address space of thread %s\n"), | |
6c95b8df PA |
3298 | target_pid_to_str (ptid)); |
3299 | ||
3300 | return inf->aspace; | |
3301 | } | |
3302 | ||
7313baad UW |
3303 | |
3304 | /* Target file operations. */ | |
3305 | ||
3306 | static struct target_ops * | |
3307 | default_fileio_target (void) | |
3308 | { | |
3309 | /* If we're already connected to something that can perform | |
3310 | file I/O, use it. Otherwise, try using the native target. */ | |
3311 | if (current_target.to_stratum >= process_stratum) | |
3312 | return current_target.beneath; | |
3313 | else | |
3314 | return find_default_run_target ("file I/O"); | |
3315 | } | |
3316 | ||
3317 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3318 | target file descriptor, or -1 if an error occurs (and set | |
3319 | *TARGET_ERRNO). */ | |
3320 | int | |
3321 | target_fileio_open (const char *filename, int flags, int mode, | |
3322 | int *target_errno) | |
3323 | { | |
3324 | struct target_ops *t; | |
3325 | ||
3326 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3327 | { | |
3328 | if (t->to_fileio_open != NULL) | |
3329 | { | |
3330 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3331 | ||
3332 | if (targetdebug) | |
3333 | fprintf_unfiltered (gdb_stdlog, | |
3334 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3335 | filename, flags, mode, | |
3336 | fd, fd != -1 ? 0 : *target_errno); | |
3337 | return fd; | |
3338 | } | |
3339 | } | |
3340 | ||
3341 | *target_errno = FILEIO_ENOSYS; | |
3342 | return -1; | |
3343 | } | |
3344 | ||
3345 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3346 | Return the number of bytes written, or -1 if an error occurs | |
3347 | (and set *TARGET_ERRNO). */ | |
3348 | int | |
3349 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3350 | ULONGEST offset, int *target_errno) | |
3351 | { | |
3352 | struct target_ops *t; | |
3353 | ||
3354 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3355 | { | |
3356 | if (t->to_fileio_pwrite != NULL) | |
3357 | { | |
3358 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3359 | target_errno); | |
3360 | ||
3361 | if (targetdebug) | |
3362 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3363 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3364 | "= %d (%d)\n", |
a71b5a38 | 3365 | fd, len, pulongest (offset), |
7313baad UW |
3366 | ret, ret != -1 ? 0 : *target_errno); |
3367 | return ret; | |
3368 | } | |
3369 | } | |
3370 | ||
3371 | *target_errno = FILEIO_ENOSYS; | |
3372 | return -1; | |
3373 | } | |
3374 | ||
3375 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3376 | Return the number of bytes read, or -1 if an error occurs | |
3377 | (and set *TARGET_ERRNO). */ | |
3378 | int | |
3379 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3380 | ULONGEST offset, int *target_errno) | |
3381 | { | |
3382 | struct target_ops *t; | |
3383 | ||
3384 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3385 | { | |
3386 | if (t->to_fileio_pread != NULL) | |
3387 | { | |
3388 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3389 | target_errno); | |
3390 | ||
3391 | if (targetdebug) | |
3392 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3393 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3394 | "= %d (%d)\n", |
a71b5a38 | 3395 | fd, len, pulongest (offset), |
7313baad UW |
3396 | ret, ret != -1 ? 0 : *target_errno); |
3397 | return ret; | |
3398 | } | |
3399 | } | |
3400 | ||
3401 | *target_errno = FILEIO_ENOSYS; | |
3402 | return -1; | |
3403 | } | |
3404 | ||
3405 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3406 | (and set *TARGET_ERRNO). */ | |
3407 | int | |
3408 | target_fileio_close (int fd, int *target_errno) | |
3409 | { | |
3410 | struct target_ops *t; | |
3411 | ||
3412 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3413 | { | |
3414 | if (t->to_fileio_close != NULL) | |
3415 | { | |
3416 | int ret = t->to_fileio_close (fd, target_errno); | |
3417 | ||
3418 | if (targetdebug) | |
3419 | fprintf_unfiltered (gdb_stdlog, | |
3420 | "target_fileio_close (%d) = %d (%d)\n", | |
3421 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3422 | return ret; | |
3423 | } | |
3424 | } | |
3425 | ||
3426 | *target_errno = FILEIO_ENOSYS; | |
3427 | return -1; | |
3428 | } | |
3429 | ||
3430 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3431 | occurs (and set *TARGET_ERRNO). */ | |
3432 | int | |
3433 | target_fileio_unlink (const char *filename, int *target_errno) | |
3434 | { | |
3435 | struct target_ops *t; | |
3436 | ||
3437 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3438 | { | |
3439 | if (t->to_fileio_unlink != NULL) | |
3440 | { | |
3441 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3442 | ||
3443 | if (targetdebug) | |
3444 | fprintf_unfiltered (gdb_stdlog, | |
3445 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3446 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3447 | return ret; | |
3448 | } | |
3449 | } | |
3450 | ||
3451 | *target_errno = FILEIO_ENOSYS; | |
3452 | return -1; | |
3453 | } | |
3454 | ||
b9e7b9c3 UW |
3455 | /* Read value of symbolic link FILENAME on the target. Return a |
3456 | null-terminated string allocated via xmalloc, or NULL if an error | |
3457 | occurs (and set *TARGET_ERRNO). */ | |
3458 | char * | |
3459 | target_fileio_readlink (const char *filename, int *target_errno) | |
3460 | { | |
3461 | struct target_ops *t; | |
3462 | ||
3463 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3464 | { | |
3465 | if (t->to_fileio_readlink != NULL) | |
3466 | { | |
3467 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3468 | ||
3469 | if (targetdebug) | |
3470 | fprintf_unfiltered (gdb_stdlog, | |
3471 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3472 | filename, ret? ret : "(nil)", | |
3473 | ret? 0 : *target_errno); | |
3474 | return ret; | |
3475 | } | |
3476 | } | |
3477 | ||
3478 | *target_errno = FILEIO_ENOSYS; | |
3479 | return NULL; | |
3480 | } | |
3481 | ||
7313baad UW |
3482 | static void |
3483 | target_fileio_close_cleanup (void *opaque) | |
3484 | { | |
3485 | int fd = *(int *) opaque; | |
3486 | int target_errno; | |
3487 | ||
3488 | target_fileio_close (fd, &target_errno); | |
3489 | } | |
3490 | ||
3491 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3492 | return the size of the transferred data. PADDING additional bytes are | |
3493 | available in *BUF_P. This is a helper function for | |
3494 | target_fileio_read_alloc; see the declaration of that function for more | |
3495 | information. */ | |
3496 | ||
3497 | static LONGEST | |
3498 | target_fileio_read_alloc_1 (const char *filename, | |
3499 | gdb_byte **buf_p, int padding) | |
3500 | { | |
3501 | struct cleanup *close_cleanup; | |
3502 | size_t buf_alloc, buf_pos; | |
3503 | gdb_byte *buf; | |
3504 | LONGEST n; | |
3505 | int fd; | |
3506 | int target_errno; | |
3507 | ||
3508 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3509 | if (fd == -1) | |
3510 | return -1; | |
3511 | ||
3512 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3513 | ||
3514 | /* Start by reading up to 4K at a time. The target will throttle | |
3515 | this number down if necessary. */ | |
3516 | buf_alloc = 4096; | |
3517 | buf = xmalloc (buf_alloc); | |
3518 | buf_pos = 0; | |
3519 | while (1) | |
3520 | { | |
3521 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3522 | buf_alloc - buf_pos - padding, buf_pos, | |
3523 | &target_errno); | |
3524 | if (n < 0) | |
3525 | { | |
3526 | /* An error occurred. */ | |
3527 | do_cleanups (close_cleanup); | |
3528 | xfree (buf); | |
3529 | return -1; | |
3530 | } | |
3531 | else if (n == 0) | |
3532 | { | |
3533 | /* Read all there was. */ | |
3534 | do_cleanups (close_cleanup); | |
3535 | if (buf_pos == 0) | |
3536 | xfree (buf); | |
3537 | else | |
3538 | *buf_p = buf; | |
3539 | return buf_pos; | |
3540 | } | |
3541 | ||
3542 | buf_pos += n; | |
3543 | ||
3544 | /* If the buffer is filling up, expand it. */ | |
3545 | if (buf_alloc < buf_pos * 2) | |
3546 | { | |
3547 | buf_alloc *= 2; | |
3548 | buf = xrealloc (buf, buf_alloc); | |
3549 | } | |
3550 | ||
3551 | QUIT; | |
3552 | } | |
3553 | } | |
3554 | ||
3555 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3556 | the size of the transferred data. See the declaration in "target.h" | |
3557 | function for more information about the return value. */ | |
3558 | ||
3559 | LONGEST | |
3560 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3561 | { | |
3562 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3563 | } | |
3564 | ||
3565 | /* Read target file FILENAME. The result is NUL-terminated and | |
3566 | returned as a string, allocated using xmalloc. If an error occurs | |
3567 | or the transfer is unsupported, NULL is returned. Empty objects | |
3568 | are returned as allocated but empty strings. A warning is issued | |
3569 | if the result contains any embedded NUL bytes. */ | |
3570 | ||
3571 | char * | |
3572 | target_fileio_read_stralloc (const char *filename) | |
3573 | { | |
39086a0e PA |
3574 | gdb_byte *buffer; |
3575 | char *bufstr; | |
7313baad UW |
3576 | LONGEST i, transferred; |
3577 | ||
39086a0e PA |
3578 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3579 | bufstr = (char *) buffer; | |
7313baad UW |
3580 | |
3581 | if (transferred < 0) | |
3582 | return NULL; | |
3583 | ||
3584 | if (transferred == 0) | |
3585 | return xstrdup (""); | |
3586 | ||
39086a0e | 3587 | bufstr[transferred] = 0; |
7313baad UW |
3588 | |
3589 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3590 | for (i = strlen (bufstr); i < transferred; i++) |
3591 | if (bufstr[i] != 0) | |
7313baad UW |
3592 | { |
3593 | warning (_("target file %s " | |
3594 | "contained unexpected null characters"), | |
3595 | filename); | |
3596 | break; | |
3597 | } | |
3598 | ||
39086a0e | 3599 | return bufstr; |
7313baad UW |
3600 | } |
3601 | ||
3602 | ||
e0d24f8d WZ |
3603 | static int |
3604 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3605 | { | |
f5656ead | 3606 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3607 | } |
3608 | ||
5009afc5 AS |
3609 | static int |
3610 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3611 | CORE_ADDR addr, | |
3612 | CORE_ADDR start, int length) | |
3613 | { | |
3614 | return addr >= start && addr < start + length; | |
3615 | } | |
3616 | ||
c2250ad1 UW |
3617 | static struct gdbarch * |
3618 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3619 | { | |
f5656ead | 3620 | return target_gdbarch (); |
c2250ad1 UW |
3621 | } |
3622 | ||
c906108c | 3623 | static int |
fba45db2 | 3624 | return_zero (void) |
c906108c SS |
3625 | { |
3626 | return 0; | |
3627 | } | |
3628 | ||
3629 | static int | |
fba45db2 | 3630 | return_one (void) |
c906108c SS |
3631 | { |
3632 | return 1; | |
3633 | } | |
3634 | ||
ccaa32c7 GS |
3635 | static int |
3636 | return_minus_one (void) | |
3637 | { | |
3638 | return -1; | |
3639 | } | |
3640 | ||
ed9a39eb JM |
3641 | /* |
3642 | * Find the next target down the stack from the specified target. | |
3643 | */ | |
3644 | ||
3645 | struct target_ops * | |
fba45db2 | 3646 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3647 | { |
258b763a | 3648 | return t->beneath; |
ed9a39eb JM |
3649 | } |
3650 | ||
c906108c SS |
3651 | \f |
3652 | /* The inferior process has died. Long live the inferior! */ | |
3653 | ||
3654 | void | |
fba45db2 | 3655 | generic_mourn_inferior (void) |
c906108c | 3656 | { |
7f9f62ba | 3657 | ptid_t ptid; |
c906108c | 3658 | |
7f9f62ba | 3659 | ptid = inferior_ptid; |
39f77062 | 3660 | inferior_ptid = null_ptid; |
7f9f62ba | 3661 | |
f59f708a PA |
3662 | /* Mark breakpoints uninserted in case something tries to delete a |
3663 | breakpoint while we delete the inferior's threads (which would | |
3664 | fail, since the inferior is long gone). */ | |
3665 | mark_breakpoints_out (); | |
3666 | ||
7f9f62ba PA |
3667 | if (!ptid_equal (ptid, null_ptid)) |
3668 | { | |
3669 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3670 | exit_inferior (pid); |
7f9f62ba PA |
3671 | } |
3672 | ||
f59f708a PA |
3673 | /* Note this wipes step-resume breakpoints, so needs to be done |
3674 | after exit_inferior, which ends up referencing the step-resume | |
3675 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3676 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3677 | |
c906108c SS |
3678 | registers_changed (); |
3679 | ||
c906108c SS |
3680 | reopen_exec_file (); |
3681 | reinit_frame_cache (); | |
3682 | ||
9a4105ab AC |
3683 | if (deprecated_detach_hook) |
3684 | deprecated_detach_hook (); | |
c906108c SS |
3685 | } |
3686 | \f | |
fd0a2a6f MK |
3687 | /* Convert a normal process ID to a string. Returns the string in a |
3688 | static buffer. */ | |
c906108c SS |
3689 | |
3690 | char * | |
39f77062 | 3691 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3692 | { |
fd0a2a6f | 3693 | static char buf[32]; |
c906108c | 3694 | |
5fff8fc0 | 3695 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3696 | return buf; |
3697 | } | |
3698 | ||
2c0b251b | 3699 | static char * |
117de6a9 PA |
3700 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3701 | { | |
3702 | return normal_pid_to_str (ptid); | |
3703 | } | |
3704 | ||
9b4eba8e HZ |
3705 | /* Error-catcher for target_find_memory_regions. */ |
3706 | static int | |
b8edc417 | 3707 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3708 | { |
9b4eba8e | 3709 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3710 | return 0; |
3711 | } | |
3712 | ||
9b4eba8e HZ |
3713 | /* Error-catcher for target_make_corefile_notes. */ |
3714 | static char * | |
3715 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3716 | { |
9b4eba8e | 3717 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3718 | return NULL; |
3719 | } | |
3720 | ||
6b04bdb7 MS |
3721 | /* Error-catcher for target_get_bookmark. */ |
3722 | static gdb_byte * | |
3723 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3724 | { | |
3725 | tcomplain (); | |
3726 | return NULL; | |
3727 | } | |
3728 | ||
3729 | /* Error-catcher for target_goto_bookmark. */ | |
3730 | static void | |
3731 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3732 | { | |
3733 | tcomplain (); | |
3734 | } | |
3735 | ||
c906108c SS |
3736 | /* Set up the handful of non-empty slots needed by the dummy target |
3737 | vector. */ | |
3738 | ||
3739 | static void | |
fba45db2 | 3740 | init_dummy_target (void) |
c906108c SS |
3741 | { |
3742 | dummy_target.to_shortname = "None"; | |
3743 | dummy_target.to_longname = "None"; | |
3744 | dummy_target.to_doc = ""; | |
3745 | dummy_target.to_attach = find_default_attach; | |
136d6dae VP |
3746 | dummy_target.to_detach = |
3747 | (void (*)(struct target_ops *, char *, int))target_ignore; | |
c906108c | 3748 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
3749 | dummy_target.to_can_async_p = find_default_can_async_p; |
3750 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 3751 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3752 | dummy_target.to_supports_disable_randomization |
3753 | = find_default_supports_disable_randomization; | |
117de6a9 | 3754 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3755 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3756 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3757 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3758 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3759 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
0b603eba | 3760 | dummy_target.to_xfer_partial = default_xfer_partial; |
c35b1492 PA |
3761 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3762 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3763 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3764 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3765 | dummy_target.to_has_execution |
3766 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
7155de5a HZ |
3767 | dummy_target.to_stopped_by_watchpoint = return_zero; |
3768 | dummy_target.to_stopped_data_address = | |
3769 | (int (*) (struct target_ops *, CORE_ADDR *)) return_zero; | |
c906108c SS |
3770 | dummy_target.to_magic = OPS_MAGIC; |
3771 | } | |
c906108c | 3772 | \f |
c906108c | 3773 | static void |
fba45db2 | 3774 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3775 | { |
3776 | debug_target.to_open (args, from_tty); | |
3777 | ||
96baa820 | 3778 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3779 | } |
3780 | ||
f1c07ab0 | 3781 | void |
460014f5 | 3782 | target_close (struct target_ops *targ) |
f1c07ab0 AC |
3783 | { |
3784 | if (targ->to_xclose != NULL) | |
460014f5 | 3785 | targ->to_xclose (targ); |
f1c07ab0 | 3786 | else if (targ->to_close != NULL) |
460014f5 | 3787 | targ->to_close (); |
947b8855 PA |
3788 | |
3789 | if (targetdebug) | |
460014f5 | 3790 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3791 | } |
3792 | ||
136d6dae VP |
3793 | void |
3794 | target_attach (char *args, int from_tty) | |
3795 | { | |
3796 | struct target_ops *t; | |
5d502164 | 3797 | |
136d6dae VP |
3798 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3799 | { | |
3800 | if (t->to_attach != NULL) | |
3801 | { | |
3802 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3803 | if (targetdebug) |
3804 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3805 | args, from_tty); | |
136d6dae VP |
3806 | return; |
3807 | } | |
3808 | } | |
3809 | ||
3810 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3811 | _("could not find a target to attach")); |
136d6dae VP |
3812 | } |
3813 | ||
28439f5e PA |
3814 | int |
3815 | target_thread_alive (ptid_t ptid) | |
c906108c | 3816 | { |
28439f5e | 3817 | struct target_ops *t; |
5d502164 | 3818 | |
28439f5e PA |
3819 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3820 | { | |
3821 | if (t->to_thread_alive != NULL) | |
3822 | { | |
3823 | int retval; | |
c906108c | 3824 | |
28439f5e PA |
3825 | retval = t->to_thread_alive (t, ptid); |
3826 | if (targetdebug) | |
3827 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3828 | PIDGET (ptid), retval); | |
3829 | ||
3830 | return retval; | |
3831 | } | |
3832 | } | |
3833 | ||
3834 | return 0; | |
3835 | } | |
3836 | ||
3837 | void | |
3838 | target_find_new_threads (void) | |
3839 | { | |
3840 | struct target_ops *t; | |
5d502164 | 3841 | |
28439f5e PA |
3842 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3843 | { | |
3844 | if (t->to_find_new_threads != NULL) | |
3845 | { | |
3846 | t->to_find_new_threads (t); | |
3847 | if (targetdebug) | |
3848 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3849 | ||
3850 | return; | |
3851 | } | |
3852 | } | |
c906108c SS |
3853 | } |
3854 | ||
d914c394 SS |
3855 | void |
3856 | target_stop (ptid_t ptid) | |
3857 | { | |
3858 | if (!may_stop) | |
3859 | { | |
3860 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3861 | return; | |
3862 | } | |
3863 | ||
3864 | (*current_target.to_stop) (ptid); | |
3865 | } | |
3866 | ||
c906108c | 3867 | static void |
28439f5e | 3868 | debug_to_post_attach (int pid) |
c906108c | 3869 | { |
28439f5e | 3870 | debug_target.to_post_attach (pid); |
c906108c | 3871 | |
28439f5e | 3872 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3873 | } |
3874 | ||
09826ec5 PA |
3875 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3876 | result. The LIST incoming argument is released. */ | |
3877 | ||
3878 | static char * | |
3879 | str_comma_list_concat_elem (char *list, const char *elem) | |
3880 | { | |
3881 | if (list == NULL) | |
3882 | return xstrdup (elem); | |
3883 | else | |
3884 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3885 | } | |
3886 | ||
3887 | /* Helper for target_options_to_string. If OPT is present in | |
3888 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3889 | Returns the new resulting string. OPT is removed from | |
3890 | TARGET_OPTIONS. */ | |
3891 | ||
3892 | static char * | |
3893 | do_option (int *target_options, char *ret, | |
3894 | int opt, char *opt_str) | |
3895 | { | |
3896 | if ((*target_options & opt) != 0) | |
3897 | { | |
3898 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3899 | *target_options &= ~opt; | |
3900 | } | |
3901 | ||
3902 | return ret; | |
3903 | } | |
3904 | ||
3905 | char * | |
3906 | target_options_to_string (int target_options) | |
3907 | { | |
3908 | char *ret = NULL; | |
3909 | ||
3910 | #define DO_TARG_OPTION(OPT) \ | |
3911 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3912 | ||
3913 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3914 | ||
3915 | if (target_options != 0) | |
3916 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3917 | ||
3918 | if (ret == NULL) | |
3919 | ret = xstrdup (""); | |
3920 | return ret; | |
3921 | } | |
3922 | ||
bf0c5130 | 3923 | static void |
56be3814 UW |
3924 | debug_print_register (const char * func, |
3925 | struct regcache *regcache, int regno) | |
bf0c5130 | 3926 | { |
f8d29908 | 3927 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3928 | |
bf0c5130 | 3929 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3930 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3931 | && gdbarch_register_name (gdbarch, regno) != NULL |
3932 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3933 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3934 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3935 | else |
3936 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3937 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3938 | { |
e17a4113 | 3939 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3940 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3941 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3942 | |
0ff58721 | 3943 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3944 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3945 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3946 | { |
3947 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3948 | } | |
81c4a259 | 3949 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3950 | { |
e17a4113 | 3951 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3952 | |
0b1553bc UW |
3953 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3954 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3955 | } |
3956 | } | |
3957 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3958 | } | |
3959 | ||
28439f5e PA |
3960 | void |
3961 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3962 | { |
28439f5e | 3963 | struct target_ops *t; |
5d502164 | 3964 | |
28439f5e PA |
3965 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3966 | { | |
3967 | if (t->to_fetch_registers != NULL) | |
3968 | { | |
3969 | t->to_fetch_registers (t, regcache, regno); | |
3970 | if (targetdebug) | |
3971 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3972 | return; | |
3973 | } | |
3974 | } | |
c906108c SS |
3975 | } |
3976 | ||
28439f5e PA |
3977 | void |
3978 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3979 | { |
28439f5e | 3980 | struct target_ops *t; |
5d502164 | 3981 | |
d914c394 SS |
3982 | if (!may_write_registers) |
3983 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3984 | ||
28439f5e PA |
3985 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3986 | { | |
3987 | if (t->to_store_registers != NULL) | |
3988 | { | |
3989 | t->to_store_registers (t, regcache, regno); | |
3990 | if (targetdebug) | |
3991 | { | |
3992 | debug_print_register ("target_store_registers", regcache, regno); | |
3993 | } | |
3994 | return; | |
3995 | } | |
3996 | } | |
3997 | ||
3998 | noprocess (); | |
c906108c SS |
3999 | } |
4000 | ||
dc146f7c VP |
4001 | int |
4002 | target_core_of_thread (ptid_t ptid) | |
4003 | { | |
4004 | struct target_ops *t; | |
4005 | ||
4006 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4007 | { | |
4008 | if (t->to_core_of_thread != NULL) | |
4009 | { | |
4010 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 4011 | |
dc146f7c | 4012 | if (targetdebug) |
3e43a32a MS |
4013 | fprintf_unfiltered (gdb_stdlog, |
4014 | "target_core_of_thread (%d) = %d\n", | |
dc146f7c VP |
4015 | PIDGET (ptid), retval); |
4016 | return retval; | |
4017 | } | |
4018 | } | |
4019 | ||
4020 | return -1; | |
4021 | } | |
4022 | ||
4a5e7a5b PA |
4023 | int |
4024 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4025 | { | |
4026 | struct target_ops *t; | |
4027 | ||
4028 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4029 | { | |
4030 | if (t->to_verify_memory != NULL) | |
4031 | { | |
4032 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4033 | |
4a5e7a5b | 4034 | if (targetdebug) |
3e43a32a MS |
4035 | fprintf_unfiltered (gdb_stdlog, |
4036 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4037 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4038 | pulongest (size), |
4039 | retval); | |
4040 | return retval; | |
4041 | } | |
4042 | } | |
4043 | ||
4044 | tcomplain (); | |
4045 | } | |
4046 | ||
9c06b0b4 TJB |
4047 | /* The documentation for this function is in its prototype declaration in |
4048 | target.h. */ | |
4049 | ||
4050 | int | |
4051 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4052 | { | |
4053 | struct target_ops *t; | |
4054 | ||
4055 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4056 | if (t->to_insert_mask_watchpoint != NULL) | |
4057 | { | |
4058 | int ret; | |
4059 | ||
4060 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4061 | ||
4062 | if (targetdebug) | |
4063 | fprintf_unfiltered (gdb_stdlog, "\ | |
4064 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4065 | core_addr_to_string (addr), | |
4066 | core_addr_to_string (mask), rw, ret); | |
4067 | ||
4068 | return ret; | |
4069 | } | |
4070 | ||
4071 | return 1; | |
4072 | } | |
4073 | ||
4074 | /* The documentation for this function is in its prototype declaration in | |
4075 | target.h. */ | |
4076 | ||
4077 | int | |
4078 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4079 | { | |
4080 | struct target_ops *t; | |
4081 | ||
4082 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4083 | if (t->to_remove_mask_watchpoint != NULL) | |
4084 | { | |
4085 | int ret; | |
4086 | ||
4087 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4088 | ||
4089 | if (targetdebug) | |
4090 | fprintf_unfiltered (gdb_stdlog, "\ | |
4091 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4092 | core_addr_to_string (addr), | |
4093 | core_addr_to_string (mask), rw, ret); | |
4094 | ||
4095 | return ret; | |
4096 | } | |
4097 | ||
4098 | return 1; | |
4099 | } | |
4100 | ||
4101 | /* The documentation for this function is in its prototype declaration | |
4102 | in target.h. */ | |
4103 | ||
4104 | int | |
4105 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4106 | { | |
4107 | struct target_ops *t; | |
4108 | ||
4109 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4110 | if (t->to_masked_watch_num_registers != NULL) | |
4111 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4112 | ||
4113 | return -1; | |
4114 | } | |
4115 | ||
f1310107 TJB |
4116 | /* The documentation for this function is in its prototype declaration |
4117 | in target.h. */ | |
4118 | ||
4119 | int | |
4120 | target_ranged_break_num_registers (void) | |
4121 | { | |
4122 | struct target_ops *t; | |
4123 | ||
4124 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4125 | if (t->to_ranged_break_num_registers != NULL) | |
4126 | return t->to_ranged_break_num_registers (t); | |
4127 | ||
4128 | return -1; | |
4129 | } | |
4130 | ||
02d27625 MM |
4131 | /* See target.h. */ |
4132 | ||
4133 | int | |
4134 | target_supports_btrace (void) | |
4135 | { | |
4136 | struct target_ops *t; | |
4137 | ||
4138 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4139 | if (t->to_supports_btrace != NULL) | |
4140 | return t->to_supports_btrace (); | |
4141 | ||
4142 | return 0; | |
4143 | } | |
4144 | ||
4145 | /* See target.h. */ | |
4146 | ||
4147 | struct btrace_target_info * | |
4148 | target_enable_btrace (ptid_t ptid) | |
4149 | { | |
4150 | struct target_ops *t; | |
4151 | ||
4152 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4153 | if (t->to_enable_btrace != NULL) | |
4154 | return t->to_enable_btrace (ptid); | |
4155 | ||
4156 | tcomplain (); | |
4157 | return NULL; | |
4158 | } | |
4159 | ||
4160 | /* See target.h. */ | |
4161 | ||
4162 | void | |
4163 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4164 | { | |
4165 | struct target_ops *t; | |
4166 | ||
4167 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4168 | if (t->to_disable_btrace != NULL) | |
4169 | return t->to_disable_btrace (btinfo); | |
4170 | ||
4171 | tcomplain (); | |
4172 | } | |
4173 | ||
4174 | /* See target.h. */ | |
4175 | ||
4176 | void | |
4177 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4178 | { | |
4179 | struct target_ops *t; | |
4180 | ||
4181 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4182 | if (t->to_teardown_btrace != NULL) | |
4183 | return t->to_teardown_btrace (btinfo); | |
4184 | ||
4185 | tcomplain (); | |
4186 | } | |
4187 | ||
4188 | /* See target.h. */ | |
4189 | ||
4190 | VEC (btrace_block_s) * | |
4191 | target_read_btrace (struct btrace_target_info *btinfo, | |
4192 | enum btrace_read_type type) | |
4193 | { | |
4194 | struct target_ops *t; | |
4195 | ||
4196 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4197 | if (t->to_read_btrace != NULL) | |
4198 | return t->to_read_btrace (btinfo, type); | |
4199 | ||
4200 | tcomplain (); | |
4201 | return NULL; | |
4202 | } | |
4203 | ||
d02ed0bb MM |
4204 | /* See target.h. */ |
4205 | ||
7c1687a9 MM |
4206 | void |
4207 | target_stop_recording (void) | |
4208 | { | |
4209 | struct target_ops *t; | |
4210 | ||
4211 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4212 | if (t->to_stop_recording != NULL) | |
4213 | { | |
4214 | t->to_stop_recording (); | |
4215 | return; | |
4216 | } | |
4217 | ||
4218 | /* This is optional. */ | |
4219 | } | |
4220 | ||
4221 | /* See target.h. */ | |
4222 | ||
d02ed0bb MM |
4223 | void |
4224 | target_info_record (void) | |
4225 | { | |
4226 | struct target_ops *t; | |
4227 | ||
4228 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4229 | if (t->to_info_record != NULL) | |
4230 | { | |
4231 | t->to_info_record (); | |
4232 | return; | |
4233 | } | |
4234 | ||
4235 | tcomplain (); | |
4236 | } | |
4237 | ||
4238 | /* See target.h. */ | |
4239 | ||
4240 | void | |
85e1311a | 4241 | target_save_record (const char *filename) |
d02ed0bb MM |
4242 | { |
4243 | struct target_ops *t; | |
4244 | ||
4245 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4246 | if (t->to_save_record != NULL) | |
4247 | { | |
4248 | t->to_save_record (filename); | |
4249 | return; | |
4250 | } | |
4251 | ||
4252 | tcomplain (); | |
4253 | } | |
4254 | ||
4255 | /* See target.h. */ | |
4256 | ||
4257 | int | |
4258 | target_supports_delete_record (void) | |
4259 | { | |
4260 | struct target_ops *t; | |
4261 | ||
4262 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4263 | if (t->to_delete_record != NULL) | |
4264 | return 1; | |
4265 | ||
4266 | return 0; | |
4267 | } | |
4268 | ||
4269 | /* See target.h. */ | |
4270 | ||
4271 | void | |
4272 | target_delete_record (void) | |
4273 | { | |
4274 | struct target_ops *t; | |
4275 | ||
4276 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4277 | if (t->to_delete_record != NULL) | |
4278 | { | |
4279 | t->to_delete_record (); | |
4280 | return; | |
4281 | } | |
4282 | ||
4283 | tcomplain (); | |
4284 | } | |
4285 | ||
4286 | /* See target.h. */ | |
4287 | ||
4288 | int | |
4289 | target_record_is_replaying (void) | |
4290 | { | |
4291 | struct target_ops *t; | |
4292 | ||
4293 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4294 | if (t->to_record_is_replaying != NULL) | |
4295 | return t->to_record_is_replaying (); | |
4296 | ||
4297 | return 0; | |
4298 | } | |
4299 | ||
4300 | /* See target.h. */ | |
4301 | ||
4302 | void | |
4303 | target_goto_record_begin (void) | |
4304 | { | |
4305 | struct target_ops *t; | |
4306 | ||
4307 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4308 | if (t->to_goto_record_begin != NULL) | |
4309 | { | |
4310 | t->to_goto_record_begin (); | |
4311 | return; | |
4312 | } | |
4313 | ||
4314 | tcomplain (); | |
4315 | } | |
4316 | ||
4317 | /* See target.h. */ | |
4318 | ||
4319 | void | |
4320 | target_goto_record_end (void) | |
4321 | { | |
4322 | struct target_ops *t; | |
4323 | ||
4324 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4325 | if (t->to_goto_record_end != NULL) | |
4326 | { | |
4327 | t->to_goto_record_end (); | |
4328 | return; | |
4329 | } | |
4330 | ||
4331 | tcomplain (); | |
4332 | } | |
4333 | ||
4334 | /* See target.h. */ | |
4335 | ||
4336 | void | |
4337 | target_goto_record (ULONGEST insn) | |
4338 | { | |
4339 | struct target_ops *t; | |
4340 | ||
4341 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4342 | if (t->to_goto_record != NULL) | |
4343 | { | |
4344 | t->to_goto_record (insn); | |
4345 | return; | |
4346 | } | |
4347 | ||
4348 | tcomplain (); | |
4349 | } | |
4350 | ||
67c86d06 MM |
4351 | /* See target.h. */ |
4352 | ||
4353 | void | |
4354 | target_insn_history (int size, int flags) | |
4355 | { | |
4356 | struct target_ops *t; | |
4357 | ||
4358 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4359 | if (t->to_insn_history != NULL) | |
4360 | { | |
4361 | t->to_insn_history (size, flags); | |
4362 | return; | |
4363 | } | |
4364 | ||
4365 | tcomplain (); | |
4366 | } | |
4367 | ||
4368 | /* See target.h. */ | |
4369 | ||
4370 | void | |
4371 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4372 | { | |
4373 | struct target_ops *t; | |
4374 | ||
4375 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4376 | if (t->to_insn_history_from != NULL) | |
4377 | { | |
4378 | t->to_insn_history_from (from, size, flags); | |
4379 | return; | |
4380 | } | |
4381 | ||
4382 | tcomplain (); | |
4383 | } | |
4384 | ||
4385 | /* See target.h. */ | |
4386 | ||
4387 | void | |
4388 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4389 | { | |
4390 | struct target_ops *t; | |
4391 | ||
4392 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4393 | if (t->to_insn_history_range != NULL) | |
4394 | { | |
4395 | t->to_insn_history_range (begin, end, flags); | |
4396 | return; | |
4397 | } | |
4398 | ||
4399 | tcomplain (); | |
4400 | } | |
4401 | ||
15984c13 MM |
4402 | /* See target.h. */ |
4403 | ||
4404 | void | |
4405 | target_call_history (int size, int flags) | |
4406 | { | |
4407 | struct target_ops *t; | |
4408 | ||
4409 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4410 | if (t->to_call_history != NULL) | |
4411 | { | |
4412 | t->to_call_history (size, flags); | |
4413 | return; | |
4414 | } | |
4415 | ||
4416 | tcomplain (); | |
4417 | } | |
4418 | ||
4419 | /* See target.h. */ | |
4420 | ||
4421 | void | |
4422 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4423 | { | |
4424 | struct target_ops *t; | |
4425 | ||
4426 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4427 | if (t->to_call_history_from != NULL) | |
4428 | { | |
4429 | t->to_call_history_from (begin, size, flags); | |
4430 | return; | |
4431 | } | |
4432 | ||
4433 | tcomplain (); | |
4434 | } | |
4435 | ||
4436 | /* See target.h. */ | |
4437 | ||
4438 | void | |
4439 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4440 | { | |
4441 | struct target_ops *t; | |
4442 | ||
4443 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4444 | if (t->to_call_history_range != NULL) | |
4445 | { | |
4446 | t->to_call_history_range (begin, end, flags); | |
4447 | return; | |
4448 | } | |
4449 | ||
4450 | tcomplain (); | |
4451 | } | |
4452 | ||
c906108c | 4453 | static void |
316f2060 | 4454 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 4455 | { |
316f2060 | 4456 | debug_target.to_prepare_to_store (regcache); |
c906108c | 4457 | |
96baa820 | 4458 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4459 | } |
4460 | ||
4461 | static int | |
961cb7b5 | 4462 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4463 | int write, struct mem_attrib *attrib, |
4464 | struct target_ops *target) | |
c906108c SS |
4465 | { |
4466 | int retval; | |
4467 | ||
c8e73a31 AC |
4468 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4469 | attrib, target); | |
c906108c | 4470 | |
96baa820 | 4471 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4472 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4473 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4474 | write ? "write" : "read", retval); |
c906108c | 4475 | |
c906108c SS |
4476 | if (retval > 0) |
4477 | { | |
4478 | int i; | |
4479 | ||
96baa820 | 4480 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4481 | for (i = 0; i < retval; i++) |
4482 | { | |
53b71562 | 4483 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4484 | { |
4485 | if (targetdebug < 2 && i > 0) | |
4486 | { | |
4487 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4488 | break; | |
4489 | } | |
4490 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4491 | } | |
2bc416ba | 4492 | |
96baa820 | 4493 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4494 | } |
4495 | } | |
4496 | ||
96baa820 | 4497 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4498 | |
4499 | return retval; | |
4500 | } | |
4501 | ||
4502 | static void | |
fba45db2 | 4503 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4504 | { |
4505 | debug_target.to_files_info (target); | |
4506 | ||
96baa820 | 4507 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4508 | } |
4509 | ||
4510 | static int | |
a6d9a66e UW |
4511 | debug_to_insert_breakpoint (struct gdbarch *gdbarch, |
4512 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4513 | { |
4514 | int retval; | |
4515 | ||
a6d9a66e | 4516 | retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt); |
c906108c | 4517 | |
96baa820 | 4518 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4519 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4520 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4521 | (unsigned long) retval); |
c906108c SS |
4522 | return retval; |
4523 | } | |
4524 | ||
4525 | static int | |
a6d9a66e UW |
4526 | debug_to_remove_breakpoint (struct gdbarch *gdbarch, |
4527 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4528 | { |
4529 | int retval; | |
4530 | ||
a6d9a66e | 4531 | retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt); |
c906108c | 4532 | |
96baa820 | 4533 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4534 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4535 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4536 | (unsigned long) retval); |
c906108c SS |
4537 | return retval; |
4538 | } | |
4539 | ||
ccaa32c7 GS |
4540 | static int |
4541 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
4542 | { | |
4543 | int retval; | |
4544 | ||
4545 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
4546 | ||
4547 | fprintf_unfiltered (gdb_stdlog, | |
4548 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4549 | (unsigned long) type, | |
4550 | (unsigned long) cnt, | |
4551 | (unsigned long) from_tty, | |
4552 | (unsigned long) retval); | |
4553 | return retval; | |
4554 | } | |
4555 | ||
e0d24f8d WZ |
4556 | static int |
4557 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
4558 | { | |
4559 | CORE_ADDR retval; | |
4560 | ||
4561 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
4562 | ||
4563 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4564 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4565 | core_addr_to_string (addr), (unsigned long) len, | |
4566 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4567 | return retval; |
4568 | } | |
4569 | ||
0cf6dd15 TJB |
4570 | static int |
4571 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
4572 | struct expression *cond) | |
4573 | { | |
4574 | int retval; | |
4575 | ||
3e43a32a MS |
4576 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
4577 | rw, cond); | |
0cf6dd15 TJB |
4578 | |
4579 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4580 | "target_can_accel_watchpoint_condition " |
4581 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4582 | core_addr_to_string (addr), len, rw, |
4583 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4584 | return retval; |
4585 | } | |
4586 | ||
ccaa32c7 GS |
4587 | static int |
4588 | debug_to_stopped_by_watchpoint (void) | |
4589 | { | |
4590 | int retval; | |
4591 | ||
4592 | retval = debug_target.to_stopped_by_watchpoint (); | |
4593 | ||
4594 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4595 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4596 | (unsigned long) retval); |
4597 | return retval; | |
4598 | } | |
4599 | ||
4aa7a7f5 JJ |
4600 | static int |
4601 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4602 | { |
4aa7a7f5 | 4603 | int retval; |
ccaa32c7 | 4604 | |
4aa7a7f5 | 4605 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4606 | |
4607 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4608 | "target_stopped_data_address ([%s]) = %ld\n", |
4609 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4610 | (unsigned long)retval); |
ccaa32c7 GS |
4611 | return retval; |
4612 | } | |
4613 | ||
5009afc5 AS |
4614 | static int |
4615 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4616 | CORE_ADDR addr, | |
4617 | CORE_ADDR start, int length) | |
4618 | { | |
4619 | int retval; | |
4620 | ||
4621 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4622 | start, length); | |
4623 | ||
4624 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4625 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4626 | core_addr_to_string (addr), core_addr_to_string (start), | |
4627 | length, retval); | |
5009afc5 AS |
4628 | return retval; |
4629 | } | |
4630 | ||
ccaa32c7 | 4631 | static int |
a6d9a66e UW |
4632 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
4633 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4634 | { |
4635 | int retval; | |
4636 | ||
a6d9a66e | 4637 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4638 | |
4639 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4640 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4641 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4642 | (unsigned long) retval); |
4643 | return retval; | |
4644 | } | |
4645 | ||
4646 | static int | |
a6d9a66e UW |
4647 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
4648 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4649 | { |
4650 | int retval; | |
4651 | ||
a6d9a66e | 4652 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4653 | |
4654 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4655 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4656 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4657 | (unsigned long) retval); |
4658 | return retval; | |
4659 | } | |
4660 | ||
4661 | static int | |
0cf6dd15 TJB |
4662 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
4663 | struct expression *cond) | |
ccaa32c7 GS |
4664 | { |
4665 | int retval; | |
4666 | ||
0cf6dd15 | 4667 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4668 | |
4669 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4670 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4671 | core_addr_to_string (addr), len, type, | |
4672 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4673 | return retval; |
4674 | } | |
4675 | ||
4676 | static int | |
0cf6dd15 TJB |
4677 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type, |
4678 | struct expression *cond) | |
ccaa32c7 GS |
4679 | { |
4680 | int retval; | |
4681 | ||
0cf6dd15 | 4682 | retval = debug_target.to_remove_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4683 | |
4684 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4685 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4686 | core_addr_to_string (addr), len, type, | |
4687 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4688 | return retval; |
4689 | } | |
4690 | ||
c906108c | 4691 | static void |
fba45db2 | 4692 | debug_to_terminal_init (void) |
c906108c SS |
4693 | { |
4694 | debug_target.to_terminal_init (); | |
4695 | ||
96baa820 | 4696 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4697 | } |
4698 | ||
4699 | static void | |
fba45db2 | 4700 | debug_to_terminal_inferior (void) |
c906108c SS |
4701 | { |
4702 | debug_target.to_terminal_inferior (); | |
4703 | ||
96baa820 | 4704 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4705 | } |
4706 | ||
4707 | static void | |
fba45db2 | 4708 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
4709 | { |
4710 | debug_target.to_terminal_ours_for_output (); | |
4711 | ||
96baa820 | 4712 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4713 | } |
4714 | ||
4715 | static void | |
fba45db2 | 4716 | debug_to_terminal_ours (void) |
c906108c SS |
4717 | { |
4718 | debug_target.to_terminal_ours (); | |
4719 | ||
96baa820 | 4720 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4721 | } |
4722 | ||
a790ad35 SC |
4723 | static void |
4724 | debug_to_terminal_save_ours (void) | |
4725 | { | |
4726 | debug_target.to_terminal_save_ours (); | |
4727 | ||
4728 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4729 | } | |
4730 | ||
c906108c | 4731 | static void |
503ebb2c | 4732 | debug_to_terminal_info (const char *arg, int from_tty) |
c906108c SS |
4733 | { |
4734 | debug_target.to_terminal_info (arg, from_tty); | |
4735 | ||
96baa820 | 4736 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4737 | from_tty); |
4738 | } | |
4739 | ||
c906108c | 4740 | static void |
fba45db2 | 4741 | debug_to_load (char *args, int from_tty) |
c906108c SS |
4742 | { |
4743 | debug_target.to_load (args, from_tty); | |
4744 | ||
96baa820 | 4745 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4746 | } |
4747 | ||
c906108c | 4748 | static void |
39f77062 | 4749 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 4750 | { |
39f77062 | 4751 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 4752 | |
96baa820 | 4753 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 4754 | PIDGET (ptid)); |
c906108c SS |
4755 | } |
4756 | ||
77b06cd7 | 4757 | static int |
fba45db2 | 4758 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 4759 | { |
77b06cd7 TJB |
4760 | int retval; |
4761 | ||
4762 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
4763 | ||
4764 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4765 | pid, retval); | |
c906108c | 4766 | |
77b06cd7 | 4767 | return retval; |
c906108c SS |
4768 | } |
4769 | ||
4770 | static int | |
fba45db2 | 4771 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 4772 | { |
c5aa993b | 4773 | int retval; |
c906108c SS |
4774 | |
4775 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
4776 | ||
96baa820 | 4777 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4778 | pid, retval); |
c906108c SS |
4779 | |
4780 | return retval; | |
4781 | } | |
4782 | ||
77b06cd7 | 4783 | static int |
fba45db2 | 4784 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 4785 | { |
77b06cd7 TJB |
4786 | int retval; |
4787 | ||
4788 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 4789 | |
77b06cd7 TJB |
4790 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4791 | pid, retval); | |
4792 | ||
4793 | return retval; | |
c906108c SS |
4794 | } |
4795 | ||
4796 | static int | |
fba45db2 | 4797 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 4798 | { |
c5aa993b | 4799 | int retval; |
c906108c SS |
4800 | |
4801 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
4802 | ||
96baa820 | 4803 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4804 | pid, retval); |
c906108c SS |
4805 | |
4806 | return retval; | |
4807 | } | |
4808 | ||
77b06cd7 | 4809 | static int |
fba45db2 | 4810 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 4811 | { |
77b06cd7 TJB |
4812 | int retval; |
4813 | ||
4814 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 4815 | |
77b06cd7 TJB |
4816 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4817 | pid, retval); | |
4818 | ||
4819 | return retval; | |
c906108c SS |
4820 | } |
4821 | ||
4822 | static int | |
fba45db2 | 4823 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 4824 | { |
c5aa993b | 4825 | int retval; |
c906108c SS |
4826 | |
4827 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
4828 | ||
96baa820 | 4829 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4830 | pid, retval); |
c906108c SS |
4831 | |
4832 | return retval; | |
4833 | } | |
4834 | ||
c906108c | 4835 | static int |
fba45db2 | 4836 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 4837 | { |
c5aa993b | 4838 | int has_exited; |
c906108c SS |
4839 | |
4840 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
4841 | ||
96baa820 | 4842 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4843 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4844 | |
4845 | return has_exited; | |
4846 | } | |
4847 | ||
c906108c | 4848 | static int |
fba45db2 | 4849 | debug_to_can_run (void) |
c906108c SS |
4850 | { |
4851 | int retval; | |
4852 | ||
4853 | retval = debug_target.to_can_run (); | |
4854 | ||
96baa820 | 4855 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4856 | |
4857 | return retval; | |
4858 | } | |
4859 | ||
c2250ad1 UW |
4860 | static struct gdbarch * |
4861 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4862 | { | |
4863 | struct gdbarch *retval; | |
4864 | ||
4865 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4866 | ||
3e43a32a MS |
4867 | fprintf_unfiltered (gdb_stdlog, |
4868 | "target_thread_architecture (%s) = %s [%s]\n", | |
4869 | target_pid_to_str (ptid), | |
4870 | host_address_to_string (retval), | |
c2250ad1 UW |
4871 | gdbarch_bfd_arch_info (retval)->printable_name); |
4872 | return retval; | |
4873 | } | |
4874 | ||
c906108c | 4875 | static void |
94cc34af | 4876 | debug_to_stop (ptid_t ptid) |
c906108c | 4877 | { |
94cc34af | 4878 | debug_target.to_stop (ptid); |
c906108c | 4879 | |
94cc34af PA |
4880 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4881 | target_pid_to_str (ptid)); | |
c906108c SS |
4882 | } |
4883 | ||
96baa820 JM |
4884 | static void |
4885 | debug_to_rcmd (char *command, | |
d9fcf2fb | 4886 | struct ui_file *outbuf) |
96baa820 JM |
4887 | { |
4888 | debug_target.to_rcmd (command, outbuf); | |
4889 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
4890 | } | |
4891 | ||
c906108c | 4892 | static char * |
fba45db2 | 4893 | debug_to_pid_to_exec_file (int pid) |
c906108c | 4894 | { |
c5aa993b | 4895 | char *exec_file; |
c906108c SS |
4896 | |
4897 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
4898 | ||
96baa820 | 4899 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4900 | pid, exec_file); |
c906108c SS |
4901 | |
4902 | return exec_file; | |
4903 | } | |
4904 | ||
c906108c | 4905 | static void |
fba45db2 | 4906 | setup_target_debug (void) |
c906108c SS |
4907 | { |
4908 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4909 | ||
4910 | current_target.to_open = debug_to_open; | |
c906108c | 4911 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4912 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4913 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4914 | current_target.to_files_info = debug_to_files_info; |
4915 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4916 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4917 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4918 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4919 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4920 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4921 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4922 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4923 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4924 | current_target.to_watchpoint_addr_within_range |
4925 | = debug_to_watchpoint_addr_within_range; | |
4926 | current_target.to_region_ok_for_hw_watchpoint | |
4927 | = debug_to_region_ok_for_hw_watchpoint; | |
4928 | current_target.to_can_accel_watchpoint_condition | |
4929 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4930 | current_target.to_terminal_init = debug_to_terminal_init; |
4931 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4932 | current_target.to_terminal_ours_for_output |
4933 | = debug_to_terminal_ours_for_output; | |
c906108c | 4934 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4935 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4936 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4937 | current_target.to_load = debug_to_load; |
c906108c | 4938 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4939 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4940 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4941 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4942 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4943 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4944 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4945 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4946 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4947 | current_target.to_stop = debug_to_stop; |
96baa820 | 4948 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4949 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4950 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4951 | } |
c906108c | 4952 | \f |
c5aa993b JM |
4953 | |
4954 | static char targ_desc[] = | |
3e43a32a MS |
4955 | "Names of targets and files being debugged.\nShows the entire \ |
4956 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4957 | core-file, and process, if any), as well as the symbol file name."; |
4958 | ||
96baa820 JM |
4959 | static void |
4960 | do_monitor_command (char *cmd, | |
4961 | int from_tty) | |
4962 | { | |
2b5fe715 AC |
4963 | if ((current_target.to_rcmd |
4964 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 4965 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
4966 | && (debug_target.to_rcmd |
4967 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 4968 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
4969 | target_rcmd (cmd, gdb_stdtarg); |
4970 | } | |
4971 | ||
87680a14 JB |
4972 | /* Print the name of each layers of our target stack. */ |
4973 | ||
4974 | static void | |
4975 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4976 | { | |
4977 | struct target_ops *t; | |
4978 | ||
4979 | printf_filtered (_("The current target stack is:\n")); | |
4980 | ||
4981 | for (t = target_stack; t != NULL; t = t->beneath) | |
4982 | { | |
4983 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4984 | } | |
4985 | } | |
4986 | ||
c6ebd6cf VP |
4987 | /* Controls if async mode is permitted. */ |
4988 | int target_async_permitted = 0; | |
4989 | ||
4990 | /* The set command writes to this variable. If the inferior is | |
4991 | executing, linux_nat_async_permitted is *not* updated. */ | |
4992 | static int target_async_permitted_1 = 0; | |
4993 | ||
4994 | static void | |
9401a810 PA |
4995 | set_target_async_command (char *args, int from_tty, |
4996 | struct cmd_list_element *c) | |
c6ebd6cf | 4997 | { |
c35b1492 | 4998 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4999 | { |
5000 | target_async_permitted_1 = target_async_permitted; | |
5001 | error (_("Cannot change this setting while the inferior is running.")); | |
5002 | } | |
5003 | ||
5004 | target_async_permitted = target_async_permitted_1; | |
5005 | } | |
5006 | ||
5007 | static void | |
9401a810 PA |
5008 | show_target_async_command (struct ui_file *file, int from_tty, |
5009 | struct cmd_list_element *c, | |
5010 | const char *value) | |
c6ebd6cf | 5011 | { |
3e43a32a MS |
5012 | fprintf_filtered (file, |
5013 | _("Controlling the inferior in " | |
5014 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5015 | } |
5016 | ||
d914c394 SS |
5017 | /* Temporary copies of permission settings. */ |
5018 | ||
5019 | static int may_write_registers_1 = 1; | |
5020 | static int may_write_memory_1 = 1; | |
5021 | static int may_insert_breakpoints_1 = 1; | |
5022 | static int may_insert_tracepoints_1 = 1; | |
5023 | static int may_insert_fast_tracepoints_1 = 1; | |
5024 | static int may_stop_1 = 1; | |
5025 | ||
5026 | /* Make the user-set values match the real values again. */ | |
5027 | ||
5028 | void | |
5029 | update_target_permissions (void) | |
5030 | { | |
5031 | may_write_registers_1 = may_write_registers; | |
5032 | may_write_memory_1 = may_write_memory; | |
5033 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5034 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5035 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5036 | may_stop_1 = may_stop; | |
5037 | } | |
5038 | ||
5039 | /* The one function handles (most of) the permission flags in the same | |
5040 | way. */ | |
5041 | ||
5042 | static void | |
5043 | set_target_permissions (char *args, int from_tty, | |
5044 | struct cmd_list_element *c) | |
5045 | { | |
5046 | if (target_has_execution) | |
5047 | { | |
5048 | update_target_permissions (); | |
5049 | error (_("Cannot change this setting while the inferior is running.")); | |
5050 | } | |
5051 | ||
5052 | /* Make the real values match the user-changed values. */ | |
5053 | may_write_registers = may_write_registers_1; | |
5054 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5055 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5056 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5057 | may_stop = may_stop_1; | |
5058 | update_observer_mode (); | |
5059 | } | |
5060 | ||
5061 | /* Set memory write permission independently of observer mode. */ | |
5062 | ||
5063 | static void | |
5064 | set_write_memory_permission (char *args, int from_tty, | |
5065 | struct cmd_list_element *c) | |
5066 | { | |
5067 | /* Make the real values match the user-changed values. */ | |
5068 | may_write_memory = may_write_memory_1; | |
5069 | update_observer_mode (); | |
5070 | } | |
5071 | ||
5072 | ||
c906108c | 5073 | void |
fba45db2 | 5074 | initialize_targets (void) |
c906108c SS |
5075 | { |
5076 | init_dummy_target (); | |
5077 | push_target (&dummy_target); | |
5078 | ||
5079 | add_info ("target", target_info, targ_desc); | |
5080 | add_info ("files", target_info, targ_desc); | |
5081 | ||
ccce17b0 | 5082 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5083 | Set target debugging."), _("\ |
5084 | Show target debugging."), _("\ | |
333dabeb DJ |
5085 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5086 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5087 | command."), |
ccce17b0 YQ |
5088 | NULL, |
5089 | show_targetdebug, | |
5090 | &setdebuglist, &showdebuglist); | |
3a11626d | 5091 | |
2bc416ba | 5092 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5093 | &trust_readonly, _("\ |
5094 | Set mode for reading from readonly sections."), _("\ | |
5095 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5096 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5097 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5098 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5099 | NULL, |
920d2a44 | 5100 | show_trust_readonly, |
e707bbc2 | 5101 | &setlist, &showlist); |
96baa820 JM |
5102 | |
5103 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5104 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5105 | |
87680a14 JB |
5106 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5107 | _("Print the name of each layer of the internal target stack."), | |
5108 | &maintenanceprintlist); | |
5109 | ||
c6ebd6cf VP |
5110 | add_setshow_boolean_cmd ("target-async", no_class, |
5111 | &target_async_permitted_1, _("\ | |
5112 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5113 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5114 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5115 | set_target_async_command, |
5116 | show_target_async_command, | |
c6ebd6cf VP |
5117 | &setlist, |
5118 | &showlist); | |
5119 | ||
4e5d721f | 5120 | add_setshow_boolean_cmd ("stack-cache", class_support, |
9cf1b572 | 5121 | &stack_cache_enabled_p_1, _("\ |
4e5d721f DE |
5122 | Set cache use for stack access."), _("\ |
5123 | Show cache use for stack access."), _("\ | |
5124 | When on, use the data cache for all stack access, regardless of any\n\ | |
5125 | configured memory regions. This improves remote performance significantly.\n\ | |
5126 | By default, caching for stack access is on."), | |
5127 | set_stack_cache_enabled_p, | |
5128 | show_stack_cache_enabled_p, | |
5129 | &setlist, &showlist); | |
5130 | ||
d914c394 SS |
5131 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5132 | &may_write_registers_1, _("\ | |
5133 | Set permission to write into registers."), _("\ | |
5134 | Show permission to write into registers."), _("\ | |
5135 | When this permission is on, GDB may write into the target's registers.\n\ | |
5136 | Otherwise, any sort of write attempt will result in an error."), | |
5137 | set_target_permissions, NULL, | |
5138 | &setlist, &showlist); | |
5139 | ||
5140 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5141 | &may_write_memory_1, _("\ | |
5142 | Set permission to write into target memory."), _("\ | |
5143 | Show permission to write into target memory."), _("\ | |
5144 | When this permission is on, GDB may write into the target's memory.\n\ | |
5145 | Otherwise, any sort of write attempt will result in an error."), | |
5146 | set_write_memory_permission, NULL, | |
5147 | &setlist, &showlist); | |
5148 | ||
5149 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5150 | &may_insert_breakpoints_1, _("\ | |
5151 | Set permission to insert breakpoints in the target."), _("\ | |
5152 | Show permission to insert breakpoints in the target."), _("\ | |
5153 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5154 | Otherwise, any sort of insertion attempt will result in an error."), | |
5155 | set_target_permissions, NULL, | |
5156 | &setlist, &showlist); | |
5157 | ||
5158 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5159 | &may_insert_tracepoints_1, _("\ | |
5160 | Set permission to insert tracepoints in the target."), _("\ | |
5161 | Show permission to insert tracepoints in the target."), _("\ | |
5162 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5163 | Otherwise, any sort of insertion attempt will result in an error."), | |
5164 | set_target_permissions, NULL, | |
5165 | &setlist, &showlist); | |
5166 | ||
5167 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5168 | &may_insert_fast_tracepoints_1, _("\ | |
5169 | Set permission to insert fast tracepoints in the target."), _("\ | |
5170 | Show permission to insert fast tracepoints in the target."), _("\ | |
5171 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5172 | Otherwise, any sort of insertion attempt will result in an error."), | |
5173 | set_target_permissions, NULL, | |
5174 | &setlist, &showlist); | |
5175 | ||
5176 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5177 | &may_stop_1, _("\ | |
5178 | Set permission to interrupt or signal the target."), _("\ | |
5179 | Show permission to interrupt or signal the target."), _("\ | |
5180 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5181 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5182 | set_target_permissions, NULL, | |
5183 | &setlist, &showlist); | |
5184 | ||
5185 | ||
8add0441 | 5186 | target_dcache = dcache_init (); |
c906108c | 5187 | } |