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 | ||
aa76d38d | 1096 | void |
460014f5 | 1097 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1098 | { |
87ab71f0 | 1099 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1100 | { |
aa76d38d PA |
1101 | if (!unpush_target (target_stack)) |
1102 | { | |
1103 | fprintf_unfiltered (gdb_stderr, | |
1104 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1105 | target_stack->to_shortname); |
aa76d38d PA |
1106 | internal_error (__FILE__, __LINE__, |
1107 | _("failed internal consistency check")); | |
1108 | break; | |
1109 | } | |
1110 | } | |
1111 | } | |
1112 | ||
87ab71f0 | 1113 | void |
460014f5 | 1114 | pop_all_targets (void) |
87ab71f0 | 1115 | { |
460014f5 | 1116 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1117 | } |
1118 | ||
c0edd9ed JK |
1119 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1120 | ||
1121 | int | |
1122 | target_is_pushed (struct target_ops *t) | |
1123 | { | |
1124 | struct target_ops **cur; | |
1125 | ||
1126 | /* Check magic number. If wrong, it probably means someone changed | |
1127 | the struct definition, but not all the places that initialize one. */ | |
1128 | if (t->to_magic != OPS_MAGIC) | |
1129 | { | |
1130 | fprintf_unfiltered (gdb_stderr, | |
1131 | "Magic number of %s target struct wrong\n", | |
1132 | t->to_shortname); | |
3e43a32a MS |
1133 | internal_error (__FILE__, __LINE__, |
1134 | _("failed internal consistency check")); | |
c0edd9ed JK |
1135 | } |
1136 | ||
1137 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1138 | if (*cur == t) | |
1139 | return 1; | |
1140 | ||
1141 | return 0; | |
1142 | } | |
1143 | ||
72f5cf0e | 1144 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1145 | current thread's thread-local storage with offset OFFSET. */ |
1146 | CORE_ADDR | |
1147 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1148 | { | |
1149 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1150 | struct target_ops *target; |
1151 | ||
1152 | for (target = current_target.beneath; | |
1153 | target != NULL; | |
1154 | target = target->beneath) | |
1155 | { | |
1156 | if (target->to_get_thread_local_address != NULL) | |
1157 | break; | |
1158 | } | |
9e35dae4 | 1159 | |
117de6a9 | 1160 | if (target != NULL |
f5656ead | 1161 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1162 | { |
1163 | ptid_t ptid = inferior_ptid; | |
1164 | volatile struct gdb_exception ex; | |
1165 | ||
1166 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1167 | { | |
1168 | CORE_ADDR lm_addr; | |
1169 | ||
1170 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1171 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1172 | objfile); |
1173 | /* If it's 0, throw the appropriate exception. */ | |
1174 | if (lm_addr == 0) | |
1175 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1176 | _("TLS load module not found")); | |
1177 | ||
3e43a32a MS |
1178 | addr = target->to_get_thread_local_address (target, ptid, |
1179 | lm_addr, offset); | |
9e35dae4 DJ |
1180 | } |
1181 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1182 | throw the error to some higher catcher. */ | |
1183 | if (ex.reason < 0) | |
1184 | { | |
1185 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1186 | ||
1187 | switch (ex.error) | |
1188 | { | |
1189 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1190 | error (_("Cannot find thread-local variables " |
1191 | "in this thread library.")); | |
9e35dae4 DJ |
1192 | break; |
1193 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1194 | if (objfile_is_library) | |
1195 | error (_("Cannot find shared library `%s' in dynamic" | |
1196 | " linker's load module list"), objfile->name); | |
1197 | else | |
1198 | error (_("Cannot find executable file `%s' in dynamic" | |
1199 | " linker's load module list"), objfile->name); | |
1200 | break; | |
1201 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1202 | if (objfile_is_library) | |
1203 | error (_("The inferior has not yet allocated storage for" | |
1204 | " thread-local variables in\n" | |
1205 | "the shared library `%s'\n" | |
1206 | "for %s"), | |
1207 | objfile->name, target_pid_to_str (ptid)); | |
1208 | else | |
1209 | error (_("The inferior has not yet allocated storage for" | |
1210 | " thread-local variables in\n" | |
1211 | "the executable `%s'\n" | |
1212 | "for %s"), | |
1213 | objfile->name, target_pid_to_str (ptid)); | |
1214 | break; | |
1215 | case TLS_GENERIC_ERROR: | |
1216 | if (objfile_is_library) | |
1217 | error (_("Cannot find thread-local storage for %s, " | |
1218 | "shared library %s:\n%s"), | |
1219 | target_pid_to_str (ptid), | |
1220 | objfile->name, ex.message); | |
1221 | else | |
1222 | error (_("Cannot find thread-local storage for %s, " | |
1223 | "executable file %s:\n%s"), | |
1224 | target_pid_to_str (ptid), | |
1225 | objfile->name, ex.message); | |
1226 | break; | |
1227 | default: | |
1228 | throw_exception (ex); | |
1229 | break; | |
1230 | } | |
1231 | } | |
1232 | } | |
1233 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1234 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1235 | else | |
1236 | error (_("Cannot find thread-local variables on this target")); | |
1237 | ||
1238 | return addr; | |
1239 | } | |
1240 | ||
c906108c SS |
1241 | #undef MIN |
1242 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1243 | ||
1244 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1245 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1246 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1247 | is responsible for freeing it. Return the number of bytes successfully | |
1248 | read. */ | |
1249 | ||
1250 | int | |
fba45db2 | 1251 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1252 | { |
c2e8b827 | 1253 | int tlen, offset, i; |
1b0ba102 | 1254 | gdb_byte buf[4]; |
c906108c SS |
1255 | int errcode = 0; |
1256 | char *buffer; | |
1257 | int buffer_allocated; | |
1258 | char *bufptr; | |
1259 | unsigned int nbytes_read = 0; | |
1260 | ||
6217bf3e MS |
1261 | gdb_assert (string); |
1262 | ||
c906108c SS |
1263 | /* Small for testing. */ |
1264 | buffer_allocated = 4; | |
1265 | buffer = xmalloc (buffer_allocated); | |
1266 | bufptr = buffer; | |
1267 | ||
c906108c SS |
1268 | while (len > 0) |
1269 | { | |
1270 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1271 | offset = memaddr & 3; | |
1272 | ||
1b0ba102 | 1273 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1274 | if (errcode != 0) |
1275 | { | |
1276 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1277 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1278 | a single byte. */ |
1279 | tlen = 1; | |
1280 | offset = 0; | |
b8eb5af0 | 1281 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1282 | if (errcode != 0) |
1283 | goto done; | |
1284 | } | |
1285 | ||
1286 | if (bufptr - buffer + tlen > buffer_allocated) | |
1287 | { | |
1288 | unsigned int bytes; | |
5d502164 | 1289 | |
c906108c SS |
1290 | bytes = bufptr - buffer; |
1291 | buffer_allocated *= 2; | |
1292 | buffer = xrealloc (buffer, buffer_allocated); | |
1293 | bufptr = buffer + bytes; | |
1294 | } | |
1295 | ||
1296 | for (i = 0; i < tlen; i++) | |
1297 | { | |
1298 | *bufptr++ = buf[i + offset]; | |
1299 | if (buf[i + offset] == '\000') | |
1300 | { | |
1301 | nbytes_read += i + 1; | |
1302 | goto done; | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | memaddr += tlen; | |
1307 | len -= tlen; | |
1308 | nbytes_read += tlen; | |
1309 | } | |
c5aa993b | 1310 | done: |
6217bf3e | 1311 | *string = buffer; |
c906108c SS |
1312 | if (errnop != NULL) |
1313 | *errnop = errcode; | |
c906108c SS |
1314 | return nbytes_read; |
1315 | } | |
1316 | ||
07b82ea5 PA |
1317 | struct target_section_table * |
1318 | target_get_section_table (struct target_ops *target) | |
1319 | { | |
1320 | struct target_ops *t; | |
1321 | ||
1322 | if (targetdebug) | |
1323 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1324 | ||
1325 | for (t = target; t != NULL; t = t->beneath) | |
1326 | if (t->to_get_section_table != NULL) | |
1327 | return (*t->to_get_section_table) (t); | |
1328 | ||
1329 | return NULL; | |
1330 | } | |
1331 | ||
8db32d44 | 1332 | /* Find a section containing ADDR. */ |
07b82ea5 | 1333 | |
0542c86d | 1334 | struct target_section * |
8db32d44 AC |
1335 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1336 | { | |
07b82ea5 | 1337 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1338 | struct target_section *secp; |
07b82ea5 PA |
1339 | |
1340 | if (table == NULL) | |
1341 | return NULL; | |
1342 | ||
1343 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1344 | { |
1345 | if (addr >= secp->addr && addr < secp->endaddr) | |
1346 | return secp; | |
1347 | } | |
1348 | return NULL; | |
1349 | } | |
1350 | ||
e6e4e701 PA |
1351 | /* Read memory from the live target, even if currently inspecting a |
1352 | traceframe. The return is the same as that of target_read. */ | |
1353 | ||
1354 | static LONGEST | |
1355 | target_read_live_memory (enum target_object object, | |
1356 | ULONGEST memaddr, gdb_byte *myaddr, LONGEST len) | |
1357 | { | |
1358 | int ret; | |
1359 | struct cleanup *cleanup; | |
1360 | ||
1361 | /* Switch momentarily out of tfind mode so to access live memory. | |
1362 | Note that this must not clear global state, such as the frame | |
1363 | cache, which must still remain valid for the previous traceframe. | |
1364 | We may be _building_ the frame cache at this point. */ | |
1365 | cleanup = make_cleanup_restore_traceframe_number (); | |
1366 | set_traceframe_number (-1); | |
1367 | ||
1368 | ret = target_read (current_target.beneath, object, NULL, | |
1369 | myaddr, memaddr, len); | |
1370 | ||
1371 | do_cleanups (cleanup); | |
1372 | return ret; | |
1373 | } | |
1374 | ||
1375 | /* Using the set of read-only target sections of OPS, read live | |
1376 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1377 | top-most target again. |
1378 | ||
1379 | For interface/parameters/return description see target.h, | |
1380 | to_xfer_partial. */ | |
e6e4e701 PA |
1381 | |
1382 | static LONGEST | |
1383 | memory_xfer_live_readonly_partial (struct target_ops *ops, | |
1384 | enum target_object object, | |
1385 | gdb_byte *readbuf, ULONGEST memaddr, | |
1386 | LONGEST len) | |
1387 | { | |
1388 | struct target_section *secp; | |
1389 | struct target_section_table *table; | |
1390 | ||
1391 | secp = target_section_by_addr (ops, memaddr); | |
1392 | if (secp != NULL | |
2b2848e2 DE |
1393 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1394 | secp->the_bfd_section) | |
e6e4e701 PA |
1395 | & SEC_READONLY)) |
1396 | { | |
1397 | struct target_section *p; | |
1398 | ULONGEST memend = memaddr + len; | |
1399 | ||
1400 | table = target_get_section_table (ops); | |
1401 | ||
1402 | for (p = table->sections; p < table->sections_end; p++) | |
1403 | { | |
1404 | if (memaddr >= p->addr) | |
1405 | { | |
1406 | if (memend <= p->endaddr) | |
1407 | { | |
1408 | /* Entire transfer is within this section. */ | |
1409 | return target_read_live_memory (object, memaddr, | |
1410 | readbuf, len); | |
1411 | } | |
1412 | else if (memaddr >= p->endaddr) | |
1413 | { | |
1414 | /* This section ends before the transfer starts. */ | |
1415 | continue; | |
1416 | } | |
1417 | else | |
1418 | { | |
1419 | /* This section overlaps the transfer. Just do half. */ | |
1420 | len = p->endaddr - memaddr; | |
1421 | return target_read_live_memory (object, memaddr, | |
1422 | readbuf, len); | |
1423 | } | |
1424 | } | |
1425 | } | |
1426 | } | |
1427 | ||
1428 | return 0; | |
1429 | } | |
1430 | ||
7f79c47e DE |
1431 | /* Perform a partial memory transfer. |
1432 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 DJ |
1433 | |
1434 | static LONGEST | |
f0ba3972 PA |
1435 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
1436 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1437 | LONGEST len) | |
0779438d | 1438 | { |
cf7a04e8 DJ |
1439 | LONGEST res; |
1440 | int reg_len; | |
1441 | struct mem_region *region; | |
4e5d721f | 1442 | struct inferior *inf; |
cf7a04e8 | 1443 | |
07b82ea5 PA |
1444 | /* For accesses to unmapped overlay sections, read directly from |
1445 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1446 | if (readbuf != NULL && overlay_debugging) | |
1447 | { | |
1448 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1449 | |
07b82ea5 PA |
1450 | if (pc_in_unmapped_range (memaddr, section)) |
1451 | { | |
1452 | struct target_section_table *table | |
1453 | = target_get_section_table (ops); | |
1454 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1455 | |
07b82ea5 PA |
1456 | memaddr = overlay_mapped_address (memaddr, section); |
1457 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1458 | memaddr, len, | |
1459 | table->sections, | |
1460 | table->sections_end, | |
1461 | section_name); | |
1462 | } | |
1463 | } | |
1464 | ||
1465 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1466 | if (readbuf != NULL && trust_readonly) |
1467 | { | |
0542c86d | 1468 | struct target_section *secp; |
07b82ea5 | 1469 | struct target_section_table *table; |
cf7a04e8 DJ |
1470 | |
1471 | secp = target_section_by_addr (ops, memaddr); | |
1472 | if (secp != NULL | |
2b2848e2 DE |
1473 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1474 | secp->the_bfd_section) | |
cf7a04e8 | 1475 | & SEC_READONLY)) |
07b82ea5 PA |
1476 | { |
1477 | table = target_get_section_table (ops); | |
1478 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1479 | memaddr, len, | |
1480 | table->sections, | |
1481 | table->sections_end, | |
1482 | NULL); | |
1483 | } | |
98646950 UW |
1484 | } |
1485 | ||
e6e4e701 PA |
1486 | /* If reading unavailable memory in the context of traceframes, and |
1487 | this address falls within a read-only section, fallback to | |
1488 | reading from live memory. */ | |
1489 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1490 | { | |
1491 | VEC(mem_range_s) *available; | |
1492 | ||
1493 | /* If we fail to get the set of available memory, then the | |
1494 | target does not support querying traceframe info, and so we | |
1495 | attempt reading from the traceframe anyway (assuming the | |
1496 | target implements the old QTro packet then). */ | |
1497 | if (traceframe_available_memory (&available, memaddr, len)) | |
1498 | { | |
1499 | struct cleanup *old_chain; | |
1500 | ||
1501 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1502 | ||
1503 | if (VEC_empty (mem_range_s, available) | |
1504 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1505 | { | |
1506 | /* Don't read into the traceframe's available | |
1507 | memory. */ | |
1508 | if (!VEC_empty (mem_range_s, available)) | |
1509 | { | |
1510 | LONGEST oldlen = len; | |
1511 | ||
1512 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1513 | gdb_assert (len <= oldlen); | |
1514 | } | |
1515 | ||
1516 | do_cleanups (old_chain); | |
1517 | ||
1518 | /* This goes through the topmost target again. */ | |
1519 | res = memory_xfer_live_readonly_partial (ops, object, | |
1520 | readbuf, memaddr, len); | |
1521 | if (res > 0) | |
1522 | return res; | |
1523 | ||
1524 | /* No use trying further, we know some memory starting | |
1525 | at MEMADDR isn't available. */ | |
1526 | return -1; | |
1527 | } | |
1528 | ||
1529 | /* Don't try to read more than how much is available, in | |
1530 | case the target implements the deprecated QTro packet to | |
1531 | cater for older GDBs (the target's knowledge of read-only | |
1532 | sections may be outdated by now). */ | |
1533 | len = VEC_index (mem_range_s, available, 0)->length; | |
1534 | ||
1535 | do_cleanups (old_chain); | |
1536 | } | |
1537 | } | |
1538 | ||
cf7a04e8 DJ |
1539 | /* Try GDB's internal data cache. */ |
1540 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1541 | /* region->hi == 0 means there's no upper bound. */ |
1542 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1543 | reg_len = len; |
1544 | else | |
1545 | reg_len = region->hi - memaddr; | |
1546 | ||
1547 | switch (region->attrib.mode) | |
1548 | { | |
1549 | case MEM_RO: | |
1550 | if (writebuf != NULL) | |
1551 | return -1; | |
1552 | break; | |
1553 | ||
1554 | case MEM_WO: | |
1555 | if (readbuf != NULL) | |
1556 | return -1; | |
1557 | break; | |
a76d924d DJ |
1558 | |
1559 | case MEM_FLASH: | |
1560 | /* We only support writing to flash during "load" for now. */ | |
1561 | if (writebuf != NULL) | |
1562 | error (_("Writing to flash memory forbidden in this context")); | |
1563 | break; | |
4b5752d0 VP |
1564 | |
1565 | case MEM_NONE: | |
1566 | return -1; | |
cf7a04e8 DJ |
1567 | } |
1568 | ||
6c95b8df PA |
1569 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1570 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1571 | else | |
1572 | inf = NULL; | |
4e5d721f DE |
1573 | |
1574 | if (inf != NULL | |
2f4d8875 PA |
1575 | /* The dcache reads whole cache lines; that doesn't play well |
1576 | with reading from a trace buffer, because reading outside of | |
1577 | the collected memory range fails. */ | |
1578 | && get_traceframe_number () == -1 | |
4e5d721f DE |
1579 | && (region->attrib.cache |
1580 | || (stack_cache_enabled_p && object == TARGET_OBJECT_STACK_MEMORY))) | |
cf7a04e8 | 1581 | { |
cf7a04e8 | 1582 | if (readbuf != NULL) |
25f122dc | 1583 | res = dcache_xfer_memory (ops, target_dcache, memaddr, readbuf, |
cf7a04e8 DJ |
1584 | reg_len, 0); |
1585 | else | |
1586 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1587 | correctness dcache_xfer_memory should take readbuf and | |
1588 | writebuf. */ | |
25f122dc | 1589 | res = dcache_xfer_memory (ops, target_dcache, memaddr, |
cf7a04e8 DJ |
1590 | (void *) writebuf, |
1591 | reg_len, 1); | |
1592 | if (res <= 0) | |
1593 | return -1; | |
1594 | else | |
f0ba3972 | 1595 | return res; |
cf7a04e8 DJ |
1596 | } |
1597 | ||
1598 | /* If none of those methods found the memory we wanted, fall back | |
1599 | to a target partial transfer. Normally a single call to | |
1600 | to_xfer_partial is enough; if it doesn't recognize an object | |
1601 | it will call the to_xfer_partial of the next target down. | |
1602 | But for memory this won't do. Memory is the only target | |
1603 | object which can be read from more than one valid target. | |
1604 | A core file, for instance, could have some of memory but | |
1605 | delegate other bits to the target below it. So, we must | |
1606 | manually try all targets. */ | |
1607 | ||
1608 | do | |
1609 | { | |
1610 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1611 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1612 | if (res > 0) |
8defab1a | 1613 | break; |
cf7a04e8 | 1614 | |
5ad3a4ca DJ |
1615 | /* We want to continue past core files to executables, but not |
1616 | past a running target's memory. */ | |
c35b1492 | 1617 | if (ops->to_has_all_memory (ops)) |
8defab1a | 1618 | break; |
5ad3a4ca | 1619 | |
cf7a04e8 DJ |
1620 | ops = ops->beneath; |
1621 | } | |
1622 | while (ops != NULL); | |
1623 | ||
41dcd03f DE |
1624 | /* Make sure the cache gets updated no matter what - if we are writing |
1625 | to the stack. Even if this write is not tagged as such, we still need | |
1626 | to update the cache. */ | |
1627 | ||
1628 | if (res > 0 | |
1629 | && inf != NULL | |
1630 | && writebuf != NULL | |
1631 | && !region->attrib.cache | |
1632 | && stack_cache_enabled_p | |
1633 | && object != TARGET_OBJECT_STACK_MEMORY) | |
1634 | { | |
7d4f32d3 | 1635 | dcache_update (target_dcache, memaddr, (void *) writebuf, res); |
41dcd03f DE |
1636 | } |
1637 | ||
cf7a04e8 DJ |
1638 | /* If we still haven't got anything, return the last error. We |
1639 | give up. */ | |
1640 | return res; | |
0779438d AC |
1641 | } |
1642 | ||
f0ba3972 PA |
1643 | /* Perform a partial memory transfer. For docs see target.h, |
1644 | to_xfer_partial. */ | |
1645 | ||
1646 | static LONGEST | |
1647 | memory_xfer_partial (struct target_ops *ops, enum target_object object, | |
1648 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1649 | LONGEST len) | |
1650 | { | |
1651 | int res; | |
1652 | ||
1653 | /* Zero length requests are ok and require no work. */ | |
1654 | if (len == 0) | |
1655 | return 0; | |
1656 | ||
1657 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1658 | breakpoint insns, thus hiding out from higher layers whether | |
1659 | there are software breakpoints inserted in the code stream. */ | |
1660 | if (readbuf != NULL) | |
1661 | { | |
1662 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len); | |
1663 | ||
1664 | if (res > 0 && !show_memory_breakpoints) | |
1665 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); | |
1666 | } | |
1667 | else | |
1668 | { | |
1669 | void *buf; | |
1670 | struct cleanup *old_chain; | |
1671 | ||
1672 | buf = xmalloc (len); | |
1673 | old_chain = make_cleanup (xfree, buf); | |
1674 | memcpy (buf, writebuf, len); | |
1675 | ||
1676 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
1677 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len); | |
1678 | ||
1679 | do_cleanups (old_chain); | |
1680 | } | |
1681 | ||
1682 | return res; | |
1683 | } | |
1684 | ||
8defab1a DJ |
1685 | static void |
1686 | restore_show_memory_breakpoints (void *arg) | |
1687 | { | |
1688 | show_memory_breakpoints = (uintptr_t) arg; | |
1689 | } | |
1690 | ||
1691 | struct cleanup * | |
1692 | make_show_memory_breakpoints_cleanup (int show) | |
1693 | { | |
1694 | int current = show_memory_breakpoints; | |
8defab1a | 1695 | |
5d502164 | 1696 | show_memory_breakpoints = show; |
8defab1a DJ |
1697 | return make_cleanup (restore_show_memory_breakpoints, |
1698 | (void *) (uintptr_t) current); | |
1699 | } | |
1700 | ||
7f79c47e DE |
1701 | /* For docs see target.h, to_xfer_partial. */ |
1702 | ||
27394598 AC |
1703 | static LONGEST |
1704 | target_xfer_partial (struct target_ops *ops, | |
1705 | enum target_object object, const char *annex, | |
1706 | void *readbuf, const void *writebuf, | |
1707 | ULONGEST offset, LONGEST len) | |
1708 | { | |
1709 | LONGEST retval; | |
1710 | ||
1711 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1712 | |
d914c394 SS |
1713 | if (writebuf && !may_write_memory) |
1714 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1715 | core_addr_to_string_nz (offset), plongest (len)); | |
1716 | ||
cf7a04e8 DJ |
1717 | /* If this is a memory transfer, let the memory-specific code |
1718 | have a look at it instead. Memory transfers are more | |
1719 | complicated. */ | |
4e5d721f DE |
1720 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY) |
1721 | retval = memory_xfer_partial (ops, object, readbuf, | |
1722 | writebuf, offset, len); | |
cf7a04e8 DJ |
1723 | else |
1724 | { | |
1725 | enum target_object raw_object = object; | |
1726 | ||
1727 | /* If this is a raw memory transfer, request the normal | |
1728 | memory object from other layers. */ | |
1729 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1730 | raw_object = TARGET_OBJECT_MEMORY; | |
1731 | ||
1732 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1733 | writebuf, offset, len); | |
1734 | } | |
1735 | ||
27394598 AC |
1736 | if (targetdebug) |
1737 | { | |
1738 | const unsigned char *myaddr = NULL; | |
1739 | ||
1740 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
1741 | "%s:target_xfer_partial " |
1742 | "(%d, %s, %s, %s, %s, %s) = %s", | |
27394598 AC |
1743 | ops->to_shortname, |
1744 | (int) object, | |
1745 | (annex ? annex : "(null)"), | |
53b71562 JB |
1746 | host_address_to_string (readbuf), |
1747 | host_address_to_string (writebuf), | |
0b1553bc UW |
1748 | core_addr_to_string_nz (offset), |
1749 | plongest (len), plongest (retval)); | |
27394598 AC |
1750 | |
1751 | if (readbuf) | |
1752 | myaddr = readbuf; | |
1753 | if (writebuf) | |
1754 | myaddr = writebuf; | |
1755 | if (retval > 0 && myaddr != NULL) | |
1756 | { | |
1757 | int i; | |
2bc416ba | 1758 | |
27394598 AC |
1759 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1760 | for (i = 0; i < retval; i++) | |
1761 | { | |
53b71562 | 1762 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1763 | { |
1764 | if (targetdebug < 2 && i > 0) | |
1765 | { | |
1766 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1767 | break; | |
1768 | } | |
1769 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1770 | } | |
2bc416ba | 1771 | |
27394598 AC |
1772 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1773 | } | |
1774 | } | |
2bc416ba | 1775 | |
27394598 AC |
1776 | fputc_unfiltered ('\n', gdb_stdlog); |
1777 | } | |
1778 | return retval; | |
1779 | } | |
1780 | ||
c906108c SS |
1781 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1782 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1783 | if any error occurs. | |
1784 | ||
1785 | If an error occurs, no guarantee is made about the contents of the data at | |
1786 | MYADDR. In particular, the caller should not depend upon partial reads | |
1787 | filling the buffer with good data. There is no way for the caller to know | |
1788 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1789 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1790 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1791 | |
1792 | int | |
1b162304 | 1793 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1794 | { |
c35b1492 PA |
1795 | /* Dispatch to the topmost target, not the flattened current_target. |
1796 | Memory accesses check target->to_has_(all_)memory, and the | |
1797 | flattened target doesn't inherit those. */ | |
1798 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1799 | myaddr, memaddr, len) == len) |
1800 | return 0; | |
0779438d | 1801 | else |
cf7a04e8 | 1802 | return EIO; |
c906108c SS |
1803 | } |
1804 | ||
4e5d721f DE |
1805 | /* Like target_read_memory, but specify explicitly that this is a read from |
1806 | the target's stack. This may trigger different cache behavior. */ | |
1807 | ||
1808 | int | |
45aa4659 | 1809 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f DE |
1810 | { |
1811 | /* Dispatch to the topmost target, not the flattened current_target. | |
1812 | Memory accesses check target->to_has_(all_)memory, and the | |
1813 | flattened target doesn't inherit those. */ | |
1814 | ||
1815 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, | |
1816 | myaddr, memaddr, len) == len) | |
1817 | return 0; | |
1818 | else | |
1819 | return EIO; | |
1820 | } | |
1821 | ||
7f79c47e DE |
1822 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
1823 | Returns either 0 for success or an errno value if any error occurs. | |
1824 | If an error occurs, no guarantee is made about how much data got written. | |
1825 | Callers that can deal with partial writes should call target_write. */ | |
1826 | ||
c906108c | 1827 | int |
45aa4659 | 1828 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1829 | { |
c35b1492 PA |
1830 | /* Dispatch to the topmost target, not the flattened current_target. |
1831 | Memory accesses check target->to_has_(all_)memory, and the | |
1832 | flattened target doesn't inherit those. */ | |
1833 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1834 | myaddr, memaddr, len) == len) |
1835 | return 0; | |
0779438d | 1836 | else |
cf7a04e8 | 1837 | return EIO; |
c906108c | 1838 | } |
c5aa993b | 1839 | |
f0ba3972 PA |
1840 | /* Write LEN bytes from MYADDR to target raw memory at address |
1841 | MEMADDR. Returns either 0 for success or an errno value if any | |
1842 | error occurs. If an error occurs, no guarantee is made about how | |
1843 | much data got written. Callers that can deal with partial writes | |
1844 | should call target_write. */ | |
1845 | ||
1846 | int | |
45aa4659 | 1847 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 PA |
1848 | { |
1849 | /* Dispatch to the topmost target, not the flattened current_target. | |
1850 | Memory accesses check target->to_has_(all_)memory, and the | |
1851 | flattened target doesn't inherit those. */ | |
1852 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1853 | myaddr, memaddr, len) == len) | |
1854 | return 0; | |
1855 | else | |
1856 | return EIO; | |
1857 | } | |
1858 | ||
fd79ecee DJ |
1859 | /* Fetch the target's memory map. */ |
1860 | ||
1861 | VEC(mem_region_s) * | |
1862 | target_memory_map (void) | |
1863 | { | |
1864 | VEC(mem_region_s) *result; | |
1865 | struct mem_region *last_one, *this_one; | |
1866 | int ix; | |
1867 | struct target_ops *t; | |
1868 | ||
1869 | if (targetdebug) | |
1870 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1871 | ||
1872 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1873 | if (t->to_memory_map != NULL) | |
1874 | break; | |
1875 | ||
1876 | if (t == NULL) | |
1877 | return NULL; | |
1878 | ||
1879 | result = t->to_memory_map (t); | |
1880 | if (result == NULL) | |
1881 | return NULL; | |
1882 | ||
1883 | qsort (VEC_address (mem_region_s, result), | |
1884 | VEC_length (mem_region_s, result), | |
1885 | sizeof (struct mem_region), mem_region_cmp); | |
1886 | ||
1887 | /* Check that regions do not overlap. Simultaneously assign | |
1888 | a numbering for the "mem" commands to use to refer to | |
1889 | each region. */ | |
1890 | last_one = NULL; | |
1891 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1892 | { | |
1893 | this_one->number = ix; | |
1894 | ||
1895 | if (last_one && last_one->hi > this_one->lo) | |
1896 | { | |
1897 | warning (_("Overlapping regions in memory map: ignoring")); | |
1898 | VEC_free (mem_region_s, result); | |
1899 | return NULL; | |
1900 | } | |
1901 | last_one = this_one; | |
1902 | } | |
1903 | ||
1904 | return result; | |
1905 | } | |
1906 | ||
a76d924d DJ |
1907 | void |
1908 | target_flash_erase (ULONGEST address, LONGEST length) | |
1909 | { | |
1910 | struct target_ops *t; | |
1911 | ||
1912 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1913 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1914 | { |
1915 | if (targetdebug) | |
1916 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1917 | hex_string (address), phex (length, 0)); | |
1918 | t->to_flash_erase (t, address, length); | |
1919 | return; | |
1920 | } | |
a76d924d DJ |
1921 | |
1922 | tcomplain (); | |
1923 | } | |
1924 | ||
1925 | void | |
1926 | target_flash_done (void) | |
1927 | { | |
1928 | struct target_ops *t; | |
1929 | ||
1930 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1931 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1932 | { |
1933 | if (targetdebug) | |
1934 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1935 | t->to_flash_done (t); | |
1936 | return; | |
1937 | } | |
a76d924d DJ |
1938 | |
1939 | tcomplain (); | |
1940 | } | |
1941 | ||
920d2a44 AC |
1942 | static void |
1943 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1944 | struct cmd_list_element *c, const char *value) | |
1945 | { | |
3e43a32a MS |
1946 | fprintf_filtered (file, |
1947 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1948 | value); |
1949 | } | |
3a11626d | 1950 | |
1e3ff5ad AC |
1951 | /* More generic transfers. */ |
1952 | ||
0088c768 | 1953 | static LONGEST |
8aa91c1e | 1954 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1955 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1956 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1957 | { |
1958 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1959 | && ops->deprecated_xfer_memory != NULL) |
1960 | /* If available, fall back to the target's | |
1961 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1962 | { |
4b8a223f | 1963 | int xfered = -1; |
5d502164 | 1964 | |
0088c768 | 1965 | errno = 0; |
4b8a223f AC |
1966 | if (writebuf != NULL) |
1967 | { | |
1968 | void *buffer = xmalloc (len); | |
1969 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1970 | |
4b8a223f | 1971 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1972 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1973 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1974 | do_cleanups (cleanup); |
1975 | } | |
1976 | if (readbuf != NULL) | |
244e85c8 MS |
1977 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1978 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1979 | if (xfered > 0) |
1980 | return xfered; | |
1981 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1982 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1983 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1984 | return 0; |
1985 | else | |
1986 | return -1; | |
1987 | } | |
1988 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1989 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1990 | readbuf, writebuf, offset, len); | |
1991 | else | |
1992 | return -1; | |
1993 | } | |
1994 | ||
1995 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1996 | it does not need to handle memory specially; it just passes all | |
1997 | requests down the stack. */ | |
1998 | ||
1999 | static LONGEST | |
2000 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
2001 | const char *annex, gdb_byte *readbuf, | |
2002 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
2003 | { | |
2004 | if (ops->beneath != NULL) | |
2005 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2006 | readbuf, writebuf, offset, len); | |
0088c768 AC |
2007 | else |
2008 | return -1; | |
2009 | } | |
2010 | ||
7f79c47e | 2011 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2012 | |
13547ab6 | 2013 | static LONGEST |
1e3ff5ad AC |
2014 | target_read_partial (struct target_ops *ops, |
2015 | enum target_object object, | |
1b0ba102 | 2016 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2017 | ULONGEST offset, LONGEST len) |
2018 | { | |
27394598 | 2019 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
2020 | } |
2021 | ||
13547ab6 | 2022 | static LONGEST |
1e3ff5ad AC |
2023 | target_write_partial (struct target_ops *ops, |
2024 | enum target_object object, | |
1b0ba102 | 2025 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
2026 | ULONGEST offset, LONGEST len) |
2027 | { | |
27394598 | 2028 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
2029 | } |
2030 | ||
2031 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2032 | |
2033 | /* For docs on target_read see target.h. */ | |
2034 | ||
1e3ff5ad AC |
2035 | LONGEST |
2036 | target_read (struct target_ops *ops, | |
2037 | enum target_object object, | |
1b0ba102 | 2038 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2039 | ULONGEST offset, LONGEST len) |
2040 | { | |
2041 | LONGEST xfered = 0; | |
5d502164 | 2042 | |
1e3ff5ad AC |
2043 | while (xfered < len) |
2044 | { | |
0088c768 | 2045 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 2046 | (gdb_byte *) buf + xfered, |
0088c768 | 2047 | offset + xfered, len - xfered); |
5d502164 | 2048 | |
1e3ff5ad | 2049 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
2050 | if (xfer == 0) |
2051 | return xfered; | |
2052 | if (xfer < 0) | |
0088c768 | 2053 | return -1; |
1e3ff5ad AC |
2054 | xfered += xfer; |
2055 | QUIT; | |
2056 | } | |
2057 | return len; | |
2058 | } | |
2059 | ||
f1a507a1 JB |
2060 | /* Assuming that the entire [begin, end) range of memory cannot be |
2061 | read, try to read whatever subrange is possible to read. | |
2062 | ||
2063 | The function returns, in RESULT, either zero or one memory block. | |
2064 | If there's a readable subrange at the beginning, it is completely | |
2065 | read and returned. Any further readable subrange will not be read. | |
2066 | Otherwise, if there's a readable subrange at the end, it will be | |
2067 | completely read and returned. Any readable subranges before it | |
2068 | (obviously, not starting at the beginning), will be ignored. In | |
2069 | other cases -- either no readable subrange, or readable subrange(s) | |
2070 | that is neither at the beginning, or end, nothing is returned. | |
2071 | ||
2072 | The purpose of this function is to handle a read across a boundary | |
2073 | of accessible memory in a case when memory map is not available. | |
2074 | The above restrictions are fine for this case, but will give | |
2075 | incorrect results if the memory is 'patchy'. However, supporting | |
2076 | 'patchy' memory would require trying to read every single byte, | |
2077 | and it seems unacceptable solution. Explicit memory map is | |
2078 | recommended for this case -- and target_read_memory_robust will | |
2079 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2080 | |
2081 | static void | |
3e43a32a MS |
2082 | read_whatever_is_readable (struct target_ops *ops, |
2083 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2084 | VEC(memory_read_result_s) **result) |
d5086790 | 2085 | { |
f1a507a1 | 2086 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2087 | ULONGEST current_begin = begin; |
2088 | ULONGEST current_end = end; | |
2089 | int forward; | |
2090 | memory_read_result_s r; | |
2091 | ||
2092 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2093 | if (end - begin <= 1) | |
13b3fd9b MS |
2094 | { |
2095 | xfree (buf); | |
2096 | return; | |
2097 | } | |
8dedea02 VP |
2098 | |
2099 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2100 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2101 | at the boundary of accessible region. */ |
2102 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2103 | buf, begin, 1) == 1) | |
2104 | { | |
2105 | forward = 1; | |
2106 | ++current_begin; | |
2107 | } | |
2108 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2109 | buf + (end-begin) - 1, end - 1, 1) == 1) | |
2110 | { | |
2111 | forward = 0; | |
2112 | --current_end; | |
2113 | } | |
2114 | else | |
2115 | { | |
13b3fd9b | 2116 | xfree (buf); |
8dedea02 VP |
2117 | return; |
2118 | } | |
2119 | ||
2120 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2121 | found to be not readable as a whole. | |
2122 | ||
2123 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2124 | so there's no point trying further. */ | |
2125 | while (current_end - current_begin > 1) | |
2126 | { | |
2127 | ULONGEST first_half_begin, first_half_end; | |
2128 | ULONGEST second_half_begin, second_half_end; | |
2129 | LONGEST xfer; | |
8dedea02 | 2130 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2131 | |
8dedea02 VP |
2132 | if (forward) |
2133 | { | |
2134 | first_half_begin = current_begin; | |
2135 | first_half_end = middle; | |
2136 | second_half_begin = middle; | |
2137 | second_half_end = current_end; | |
2138 | } | |
2139 | else | |
2140 | { | |
2141 | first_half_begin = middle; | |
2142 | first_half_end = current_end; | |
2143 | second_half_begin = current_begin; | |
2144 | second_half_end = middle; | |
2145 | } | |
2146 | ||
2147 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2148 | buf + (first_half_begin - begin), | |
2149 | first_half_begin, | |
2150 | first_half_end - first_half_begin); | |
2151 | ||
2152 | if (xfer == first_half_end - first_half_begin) | |
2153 | { | |
c378eb4e | 2154 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2155 | other half. */ |
8dedea02 VP |
2156 | current_begin = second_half_begin; |
2157 | current_end = second_half_end; | |
2158 | } | |
2159 | else | |
2160 | { | |
c378eb4e MS |
2161 | /* This half is not readable. Because we've tried one byte, we |
2162 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2163 | iteration to divide again and try to read. |
2164 | ||
2165 | We don't handle the other half, because this function only tries | |
2166 | to read a single readable subrange. */ | |
2167 | current_begin = first_half_begin; | |
2168 | current_end = first_half_end; | |
2169 | } | |
2170 | } | |
2171 | ||
2172 | if (forward) | |
2173 | { | |
2174 | /* The [begin, current_begin) range has been read. */ | |
2175 | r.begin = begin; | |
2176 | r.end = current_begin; | |
2177 | r.data = buf; | |
2178 | } | |
2179 | else | |
2180 | { | |
2181 | /* The [current_end, end) range has been read. */ | |
2182 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2183 | |
8dedea02 VP |
2184 | r.data = xmalloc (rlen); |
2185 | memcpy (r.data, buf + current_end - begin, rlen); | |
2186 | r.begin = current_end; | |
2187 | r.end = end; | |
2188 | xfree (buf); | |
2189 | } | |
2190 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2191 | } | |
2192 | ||
2193 | void | |
2194 | free_memory_read_result_vector (void *x) | |
2195 | { | |
2196 | VEC(memory_read_result_s) *v = x; | |
2197 | memory_read_result_s *current; | |
2198 | int ix; | |
2199 | ||
2200 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2201 | { | |
2202 | xfree (current->data); | |
2203 | } | |
2204 | VEC_free (memory_read_result_s, v); | |
2205 | } | |
2206 | ||
2207 | VEC(memory_read_result_s) * | |
2208 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2209 | { | |
2210 | VEC(memory_read_result_s) *result = 0; | |
2211 | ||
2212 | LONGEST xfered = 0; | |
d5086790 VP |
2213 | while (xfered < len) |
2214 | { | |
8dedea02 VP |
2215 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2216 | LONGEST rlen; | |
5d502164 | 2217 | |
8dedea02 VP |
2218 | /* If there is no explicit region, a fake one should be created. */ |
2219 | gdb_assert (region); | |
2220 | ||
2221 | if (region->hi == 0) | |
2222 | rlen = len - xfered; | |
2223 | else | |
2224 | rlen = region->hi - offset; | |
2225 | ||
2226 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2227 | { |
c378eb4e | 2228 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2229 | if the region is explicitly marked inaccessible, or |
2230 | 'inaccessible-by-default' is in effect. */ | |
2231 | xfered += rlen; | |
2232 | } | |
2233 | else | |
2234 | { | |
2235 | LONGEST to_read = min (len - xfered, rlen); | |
2236 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2237 | ||
2238 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2239 | (gdb_byte *) buffer, | |
2240 | offset + xfered, to_read); | |
2241 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2242 | if (xfer <= 0) |
d5086790 | 2243 | { |
c378eb4e | 2244 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2245 | some subrange. */ |
2246 | xfree (buffer); | |
3e43a32a MS |
2247 | read_whatever_is_readable (ops, offset + xfered, |
2248 | offset + xfered + to_read, &result); | |
8dedea02 | 2249 | xfered += to_read; |
d5086790 | 2250 | } |
8dedea02 VP |
2251 | else |
2252 | { | |
2253 | struct memory_read_result r; | |
2254 | r.data = buffer; | |
2255 | r.begin = offset + xfered; | |
2256 | r.end = r.begin + xfer; | |
2257 | VEC_safe_push (memory_read_result_s, result, &r); | |
2258 | xfered += xfer; | |
2259 | } | |
2260 | QUIT; | |
d5086790 | 2261 | } |
d5086790 | 2262 | } |
8dedea02 | 2263 | return result; |
d5086790 VP |
2264 | } |
2265 | ||
8dedea02 | 2266 | |
cf7a04e8 DJ |
2267 | /* An alternative to target_write with progress callbacks. */ |
2268 | ||
1e3ff5ad | 2269 | LONGEST |
cf7a04e8 DJ |
2270 | target_write_with_progress (struct target_ops *ops, |
2271 | enum target_object object, | |
2272 | const char *annex, const gdb_byte *buf, | |
2273 | ULONGEST offset, LONGEST len, | |
2274 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2275 | { |
2276 | LONGEST xfered = 0; | |
a76d924d DJ |
2277 | |
2278 | /* Give the progress callback a chance to set up. */ | |
2279 | if (progress) | |
2280 | (*progress) (0, baton); | |
2281 | ||
1e3ff5ad AC |
2282 | while (xfered < len) |
2283 | { | |
2284 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 2285 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 2286 | offset + xfered, len - xfered); |
cf7a04e8 | 2287 | |
13547ab6 DJ |
2288 | if (xfer == 0) |
2289 | return xfered; | |
2290 | if (xfer < 0) | |
0088c768 | 2291 | return -1; |
cf7a04e8 DJ |
2292 | |
2293 | if (progress) | |
2294 | (*progress) (xfer, baton); | |
2295 | ||
1e3ff5ad AC |
2296 | xfered += xfer; |
2297 | QUIT; | |
2298 | } | |
2299 | return len; | |
2300 | } | |
2301 | ||
7f79c47e DE |
2302 | /* For docs on target_write see target.h. */ |
2303 | ||
cf7a04e8 DJ |
2304 | LONGEST |
2305 | target_write (struct target_ops *ops, | |
2306 | enum target_object object, | |
2307 | const char *annex, const gdb_byte *buf, | |
2308 | ULONGEST offset, LONGEST len) | |
2309 | { | |
2310 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2311 | NULL, NULL); | |
2312 | } | |
2313 | ||
159f81f3 DJ |
2314 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2315 | the size of the transferred data. PADDING additional bytes are | |
2316 | available in *BUF_P. This is a helper function for | |
2317 | target_read_alloc; see the declaration of that function for more | |
2318 | information. */ | |
13547ab6 | 2319 | |
159f81f3 DJ |
2320 | static LONGEST |
2321 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2322 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2323 | { |
2324 | size_t buf_alloc, buf_pos; | |
2325 | gdb_byte *buf; | |
2326 | LONGEST n; | |
2327 | ||
2328 | /* This function does not have a length parameter; it reads the | |
2329 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2330 | from one target and partly from another (in a different stratum, | |
2331 | e.g. a core file and an executable). Both reasons make it | |
2332 | unsuitable for reading memory. */ | |
2333 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2334 | ||
2335 | /* Start by reading up to 4K at a time. The target will throttle | |
2336 | this number down if necessary. */ | |
2337 | buf_alloc = 4096; | |
2338 | buf = xmalloc (buf_alloc); | |
2339 | buf_pos = 0; | |
2340 | while (1) | |
2341 | { | |
2342 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 2343 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
2344 | if (n < 0) |
2345 | { | |
2346 | /* An error occurred. */ | |
2347 | xfree (buf); | |
2348 | return -1; | |
2349 | } | |
2350 | else if (n == 0) | |
2351 | { | |
2352 | /* Read all there was. */ | |
2353 | if (buf_pos == 0) | |
2354 | xfree (buf); | |
2355 | else | |
2356 | *buf_p = buf; | |
2357 | return buf_pos; | |
2358 | } | |
2359 | ||
2360 | buf_pos += n; | |
2361 | ||
2362 | /* If the buffer is filling up, expand it. */ | |
2363 | if (buf_alloc < buf_pos * 2) | |
2364 | { | |
2365 | buf_alloc *= 2; | |
2366 | buf = xrealloc (buf, buf_alloc); | |
2367 | } | |
2368 | ||
2369 | QUIT; | |
2370 | } | |
2371 | } | |
2372 | ||
159f81f3 DJ |
2373 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2374 | the size of the transferred data. See the declaration in "target.h" | |
2375 | function for more information about the return value. */ | |
2376 | ||
2377 | LONGEST | |
2378 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2379 | const char *annex, gdb_byte **buf_p) | |
2380 | { | |
2381 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2382 | } | |
2383 | ||
2384 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2385 | returned as a string, allocated using xmalloc. If an error occurs | |
2386 | or the transfer is unsupported, NULL is returned. Empty objects | |
2387 | are returned as allocated but empty strings. A warning is issued | |
2388 | if the result contains any embedded NUL bytes. */ | |
2389 | ||
2390 | char * | |
2391 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2392 | const char *annex) | |
2393 | { | |
39086a0e PA |
2394 | gdb_byte *buffer; |
2395 | char *bufstr; | |
7313baad | 2396 | LONGEST i, transferred; |
159f81f3 | 2397 | |
39086a0e PA |
2398 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2399 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2400 | |
2401 | if (transferred < 0) | |
2402 | return NULL; | |
2403 | ||
2404 | if (transferred == 0) | |
2405 | return xstrdup (""); | |
2406 | ||
39086a0e | 2407 | bufstr[transferred] = 0; |
7313baad UW |
2408 | |
2409 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2410 | for (i = strlen (bufstr); i < transferred; i++) |
2411 | if (bufstr[i] != 0) | |
7313baad UW |
2412 | { |
2413 | warning (_("target object %d, annex %s, " | |
2414 | "contained unexpected null characters"), | |
2415 | (int) object, annex ? annex : "(none)"); | |
2416 | break; | |
2417 | } | |
159f81f3 | 2418 | |
39086a0e | 2419 | return bufstr; |
159f81f3 DJ |
2420 | } |
2421 | ||
b6591e8b AC |
2422 | /* Memory transfer methods. */ |
2423 | ||
2424 | void | |
1b0ba102 | 2425 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2426 | LONGEST len) |
2427 | { | |
07b82ea5 PA |
2428 | /* This method is used to read from an alternate, non-current |
2429 | target. This read must bypass the overlay support (as symbols | |
2430 | don't match this target), and GDB's internal cache (wrong cache | |
2431 | for this target). */ | |
2432 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b AC |
2433 | != len) |
2434 | memory_error (EIO, addr); | |
2435 | } | |
2436 | ||
2437 | ULONGEST | |
5d502164 MS |
2438 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2439 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2440 | { |
f6519ebc | 2441 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2442 | |
2443 | gdb_assert (len <= sizeof (buf)); | |
2444 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2445 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2446 | } |
2447 | ||
d914c394 SS |
2448 | int |
2449 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2450 | struct bp_target_info *bp_tgt) | |
2451 | { | |
2452 | if (!may_insert_breakpoints) | |
2453 | { | |
2454 | warning (_("May not insert breakpoints")); | |
2455 | return 1; | |
2456 | } | |
2457 | ||
2458 | return (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt); | |
2459 | } | |
2460 | ||
2461 | int | |
2462 | target_remove_breakpoint (struct gdbarch *gdbarch, | |
2463 | struct bp_target_info *bp_tgt) | |
2464 | { | |
2465 | /* This is kind of a weird case to handle, but the permission might | |
2466 | have been changed after breakpoints were inserted - in which case | |
2467 | we should just take the user literally and assume that any | |
2468 | breakpoints should be left in place. */ | |
2469 | if (!may_insert_breakpoints) | |
2470 | { | |
2471 | warning (_("May not remove breakpoints")); | |
2472 | return 1; | |
2473 | } | |
2474 | ||
2475 | return (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt); | |
2476 | } | |
2477 | ||
c906108c | 2478 | static void |
fba45db2 | 2479 | target_info (char *args, int from_tty) |
c906108c SS |
2480 | { |
2481 | struct target_ops *t; | |
c906108c | 2482 | int has_all_mem = 0; |
c5aa993b | 2483 | |
c906108c | 2484 | if (symfile_objfile != NULL) |
a3f17187 | 2485 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 2486 | |
258b763a | 2487 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2488 | { |
c35b1492 | 2489 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2490 | continue; |
2491 | ||
c5aa993b | 2492 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2493 | continue; |
2494 | if (has_all_mem) | |
3e43a32a MS |
2495 | printf_unfiltered (_("\tWhile running this, " |
2496 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2497 | printf_unfiltered ("%s:\n", t->to_longname); |
2498 | (t->to_files_info) (t); | |
c35b1492 | 2499 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2500 | } |
2501 | } | |
2502 | ||
fd79ecee DJ |
2503 | /* This function is called before any new inferior is created, e.g. |
2504 | by running a program, attaching, or connecting to a target. | |
2505 | It cleans up any state from previous invocations which might | |
2506 | change between runs. This is a subset of what target_preopen | |
2507 | resets (things which might change between targets). */ | |
2508 | ||
2509 | void | |
2510 | target_pre_inferior (int from_tty) | |
2511 | { | |
c378eb4e | 2512 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2513 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2514 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2515 | to reproduce: |
2516 | ||
2517 | bash$ ./foo& | |
2518 | [1] 4711 | |
2519 | bash$ ./foo& | |
2520 | [1] 4712 | |
2521 | bash$ gdb ./foo | |
2522 | [...] | |
2523 | (gdb) attach 4711 | |
2524 | (gdb) detach | |
2525 | (gdb) attach 4712 | |
2526 | Cannot access memory at address 0xdeadbeef | |
2527 | */ | |
b9db4ced | 2528 | |
50c71eaf PA |
2529 | /* In some OSs, the shared library list is the same/global/shared |
2530 | across inferiors. If code is shared between processes, so are | |
2531 | memory regions and features. */ | |
f5656ead | 2532 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2533 | { |
2534 | no_shared_libraries (NULL, from_tty); | |
2535 | ||
2536 | invalidate_target_mem_regions (); | |
424163ea | 2537 | |
50c71eaf PA |
2538 | target_clear_description (); |
2539 | } | |
8ffcbaaf YQ |
2540 | |
2541 | agent_capability_invalidate (); | |
fd79ecee DJ |
2542 | } |
2543 | ||
b8fa0bfa PA |
2544 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2545 | inferior. */ | |
2546 | ||
2547 | static int | |
2548 | dispose_inferior (struct inferior *inf, void *args) | |
2549 | { | |
2550 | struct thread_info *thread; | |
2551 | ||
2552 | thread = any_thread_of_process (inf->pid); | |
2553 | if (thread) | |
2554 | { | |
2555 | switch_to_thread (thread->ptid); | |
2556 | ||
2557 | /* Core inferiors actually should be detached, not killed. */ | |
2558 | if (target_has_execution) | |
2559 | target_kill (); | |
2560 | else | |
2561 | target_detach (NULL, 0); | |
2562 | } | |
2563 | ||
2564 | return 0; | |
2565 | } | |
2566 | ||
c906108c SS |
2567 | /* This is to be called by the open routine before it does |
2568 | anything. */ | |
2569 | ||
2570 | void | |
fba45db2 | 2571 | target_preopen (int from_tty) |
c906108c | 2572 | { |
c5aa993b | 2573 | dont_repeat (); |
c906108c | 2574 | |
b8fa0bfa | 2575 | if (have_inferiors ()) |
c5aa993b | 2576 | { |
adf40b2e | 2577 | if (!from_tty |
b8fa0bfa PA |
2578 | || !have_live_inferiors () |
2579 | || query (_("A program is being debugged already. Kill it? "))) | |
2580 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2581 | else |
8a3fe4f8 | 2582 | error (_("Program not killed.")); |
c906108c SS |
2583 | } |
2584 | ||
2585 | /* Calling target_kill may remove the target from the stack. But if | |
2586 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2587 | /* Leave the exec target, though. The user may be switching from a |
2588 | live process to a core of the same program. */ | |
460014f5 | 2589 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2590 | |
2591 | target_pre_inferior (from_tty); | |
c906108c SS |
2592 | } |
2593 | ||
2594 | /* Detach a target after doing deferred register stores. */ | |
2595 | ||
2596 | void | |
fba45db2 | 2597 | target_detach (char *args, int from_tty) |
c906108c | 2598 | { |
136d6dae VP |
2599 | struct target_ops* t; |
2600 | ||
f5656ead | 2601 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2602 | /* Don't remove global breakpoints here. They're removed on |
2603 | disconnection from the target. */ | |
2604 | ; | |
2605 | else | |
2606 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2607 | them before detaching. */ | |
6c95b8df | 2608 | remove_breakpoints_pid (PIDGET (inferior_ptid)); |
74960c60 | 2609 | |
24291992 PA |
2610 | prepare_for_detach (); |
2611 | ||
136d6dae VP |
2612 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2613 | { | |
2614 | if (t->to_detach != NULL) | |
2615 | { | |
2616 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2617 | if (targetdebug) |
2618 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2619 | args, from_tty); | |
136d6dae VP |
2620 | return; |
2621 | } | |
2622 | } | |
2623 | ||
9b20d036 | 2624 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2625 | } |
2626 | ||
6ad8ae5c DJ |
2627 | void |
2628 | target_disconnect (char *args, int from_tty) | |
2629 | { | |
597320e7 DJ |
2630 | struct target_ops *t; |
2631 | ||
50c71eaf PA |
2632 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2633 | are global across processes, we have to remove them before | |
2634 | disconnecting. */ | |
74960c60 VP |
2635 | remove_breakpoints (); |
2636 | ||
597320e7 DJ |
2637 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2638 | if (t->to_disconnect != NULL) | |
2639 | { | |
2640 | if (targetdebug) | |
2641 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2642 | args, from_tty); | |
2643 | t->to_disconnect (t, args, from_tty); | |
2644 | return; | |
2645 | } | |
2646 | ||
2647 | tcomplain (); | |
6ad8ae5c DJ |
2648 | } |
2649 | ||
117de6a9 | 2650 | ptid_t |
47608cb1 | 2651 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2652 | { |
2653 | struct target_ops *t; | |
2654 | ||
2655 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2656 | { | |
2657 | if (t->to_wait != NULL) | |
2658 | { | |
47608cb1 | 2659 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
2660 | |
2661 | if (targetdebug) | |
2662 | { | |
2663 | char *status_string; | |
09826ec5 | 2664 | char *options_string; |
117de6a9 PA |
2665 | |
2666 | status_string = target_waitstatus_to_string (status); | |
09826ec5 | 2667 | options_string = target_options_to_string (options); |
117de6a9 | 2668 | fprintf_unfiltered (gdb_stdlog, |
09826ec5 PA |
2669 | "target_wait (%d, status, options={%s})" |
2670 | " = %d, %s\n", | |
2671 | PIDGET (ptid), options_string, | |
2672 | PIDGET (retval), status_string); | |
117de6a9 | 2673 | xfree (status_string); |
09826ec5 | 2674 | xfree (options_string); |
117de6a9 PA |
2675 | } |
2676 | ||
2677 | return retval; | |
2678 | } | |
2679 | } | |
2680 | ||
2681 | noprocess (); | |
2682 | } | |
2683 | ||
2684 | char * | |
2685 | target_pid_to_str (ptid_t ptid) | |
2686 | { | |
2687 | struct target_ops *t; | |
2688 | ||
2689 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2690 | { | |
2691 | if (t->to_pid_to_str != NULL) | |
2692 | return (*t->to_pid_to_str) (t, ptid); | |
2693 | } | |
2694 | ||
2695 | return normal_pid_to_str (ptid); | |
2696 | } | |
2697 | ||
4694da01 TT |
2698 | char * |
2699 | target_thread_name (struct thread_info *info) | |
2700 | { | |
2701 | struct target_ops *t; | |
2702 | ||
2703 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2704 | { | |
2705 | if (t->to_thread_name != NULL) | |
2706 | return (*t->to_thread_name) (info); | |
2707 | } | |
2708 | ||
2709 | return NULL; | |
2710 | } | |
2711 | ||
e1ac3328 | 2712 | void |
2ea28649 | 2713 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2714 | { |
28439f5e PA |
2715 | struct target_ops *t; |
2716 | ||
4e5d721f | 2717 | target_dcache_invalidate (); |
28439f5e PA |
2718 | |
2719 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2720 | { | |
2721 | if (t->to_resume != NULL) | |
2722 | { | |
2723 | t->to_resume (t, ptid, step, signal); | |
2724 | if (targetdebug) | |
2725 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2726 | PIDGET (ptid), | |
2727 | step ? "step" : "continue", | |
2ea28649 | 2728 | gdb_signal_to_name (signal)); |
28439f5e | 2729 | |
e66408ed | 2730 | registers_changed_ptid (ptid); |
28439f5e PA |
2731 | set_executing (ptid, 1); |
2732 | set_running (ptid, 1); | |
edb3359d | 2733 | clear_inline_frame_state (ptid); |
28439f5e PA |
2734 | return; |
2735 | } | |
2736 | } | |
2737 | ||
2738 | noprocess (); | |
e1ac3328 | 2739 | } |
2455069d UW |
2740 | |
2741 | void | |
2742 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2743 | { | |
2744 | struct target_ops *t; | |
2745 | ||
2746 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2747 | { | |
2748 | if (t->to_pass_signals != NULL) | |
2749 | { | |
2750 | if (targetdebug) | |
2751 | { | |
2752 | int i; | |
2753 | ||
2754 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2755 | numsigs); | |
2756 | ||
2757 | for (i = 0; i < numsigs; i++) | |
2758 | if (pass_signals[i]) | |
2759 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2760 | gdb_signal_to_name (i)); |
2455069d UW |
2761 | |
2762 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2763 | } | |
2764 | ||
2765 | (*t->to_pass_signals) (numsigs, pass_signals); | |
2766 | return; | |
2767 | } | |
2768 | } | |
2769 | } | |
2770 | ||
9b224c5e PA |
2771 | void |
2772 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2773 | { | |
2774 | struct target_ops *t; | |
2775 | ||
2776 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2777 | { | |
2778 | if (t->to_program_signals != NULL) | |
2779 | { | |
2780 | if (targetdebug) | |
2781 | { | |
2782 | int i; | |
2783 | ||
2784 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2785 | numsigs); | |
2786 | ||
2787 | for (i = 0; i < numsigs; i++) | |
2788 | if (program_signals[i]) | |
2789 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2790 | gdb_signal_to_name (i)); |
9b224c5e PA |
2791 | |
2792 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2793 | } | |
2794 | ||
2795 | (*t->to_program_signals) (numsigs, program_signals); | |
2796 | return; | |
2797 | } | |
2798 | } | |
2799 | } | |
2800 | ||
ee057212 DJ |
2801 | /* Look through the list of possible targets for a target that can |
2802 | follow forks. */ | |
2803 | ||
2804 | int | |
2805 | target_follow_fork (int follow_child) | |
2806 | { | |
2807 | struct target_ops *t; | |
2808 | ||
2809 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2810 | { | |
2811 | if (t->to_follow_fork != NULL) | |
2812 | { | |
2813 | int retval = t->to_follow_fork (t, follow_child); | |
5d502164 | 2814 | |
ee057212 DJ |
2815 | if (targetdebug) |
2816 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
2817 | follow_child, retval); | |
2818 | return retval; | |
2819 | } | |
2820 | } | |
2821 | ||
2822 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2823 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2824 | _("could not find a target to follow fork")); |
ee057212 DJ |
2825 | } |
2826 | ||
136d6dae VP |
2827 | void |
2828 | target_mourn_inferior (void) | |
2829 | { | |
2830 | struct target_ops *t; | |
5d502164 | 2831 | |
136d6dae VP |
2832 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2833 | { | |
2834 | if (t->to_mourn_inferior != NULL) | |
2835 | { | |
2836 | t->to_mourn_inferior (t); | |
947b8855 PA |
2837 | if (targetdebug) |
2838 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2839 | |
2840 | /* We no longer need to keep handles on any of the object files. | |
2841 | Make sure to release them to avoid unnecessarily locking any | |
2842 | of them while we're not actually debugging. */ | |
2843 | bfd_cache_close_all (); | |
2844 | ||
136d6dae VP |
2845 | return; |
2846 | } | |
2847 | } | |
2848 | ||
2849 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2850 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2851 | } |
2852 | ||
424163ea DJ |
2853 | /* Look for a target which can describe architectural features, starting |
2854 | from TARGET. If we find one, return its description. */ | |
2855 | ||
2856 | const struct target_desc * | |
2857 | target_read_description (struct target_ops *target) | |
2858 | { | |
2859 | struct target_ops *t; | |
2860 | ||
2861 | for (t = target; t != NULL; t = t->beneath) | |
2862 | if (t->to_read_description != NULL) | |
2863 | { | |
2864 | const struct target_desc *tdesc; | |
2865 | ||
2866 | tdesc = t->to_read_description (t); | |
2867 | if (tdesc) | |
2868 | return tdesc; | |
2869 | } | |
2870 | ||
2871 | return NULL; | |
2872 | } | |
2873 | ||
08388c79 DE |
2874 | /* The default implementation of to_search_memory. |
2875 | This implements a basic search of memory, reading target memory and | |
2876 | performing the search here (as opposed to performing the search in on the | |
2877 | target side with, for example, gdbserver). */ | |
2878 | ||
2879 | int | |
2880 | simple_search_memory (struct target_ops *ops, | |
2881 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2882 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2883 | CORE_ADDR *found_addrp) | |
2884 | { | |
2885 | /* NOTE: also defined in find.c testcase. */ | |
2886 | #define SEARCH_CHUNK_SIZE 16000 | |
2887 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2888 | /* Buffer to hold memory contents for searching. */ | |
2889 | gdb_byte *search_buf; | |
2890 | unsigned search_buf_size; | |
2891 | struct cleanup *old_cleanups; | |
2892 | ||
2893 | search_buf_size = chunk_size + pattern_len - 1; | |
2894 | ||
2895 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2896 | if (search_space_len < search_buf_size) | |
2897 | search_buf_size = search_space_len; | |
2898 | ||
2899 | search_buf = malloc (search_buf_size); | |
2900 | if (search_buf == NULL) | |
5e1471f5 | 2901 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2902 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2903 | ||
2904 | /* Prime the search buffer. */ | |
2905 | ||
2906 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2907 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2908 | { | |
b3dc46ff AB |
2909 | warning (_("Unable to access %s bytes of target " |
2910 | "memory at %s, halting search."), | |
2911 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2912 | do_cleanups (old_cleanups); |
2913 | return -1; | |
2914 | } | |
2915 | ||
2916 | /* Perform the search. | |
2917 | ||
2918 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2919 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2920 | read in another N bytes. */ | |
2921 | ||
2922 | while (search_space_len >= pattern_len) | |
2923 | { | |
2924 | gdb_byte *found_ptr; | |
2925 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2926 | ||
2927 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2928 | pattern, pattern_len); | |
2929 | ||
2930 | if (found_ptr != NULL) | |
2931 | { | |
2932 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2933 | |
08388c79 DE |
2934 | *found_addrp = found_addr; |
2935 | do_cleanups (old_cleanups); | |
2936 | return 1; | |
2937 | } | |
2938 | ||
2939 | /* Not found in this chunk, skip to next chunk. */ | |
2940 | ||
2941 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2942 | if (search_space_len >= chunk_size) | |
2943 | search_space_len -= chunk_size; | |
2944 | else | |
2945 | search_space_len = 0; | |
2946 | ||
2947 | if (search_space_len >= pattern_len) | |
2948 | { | |
2949 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2950 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2951 | int nr_to_read; |
2952 | ||
2953 | /* Copy the trailing part of the previous iteration to the front | |
2954 | of the buffer for the next iteration. */ | |
2955 | gdb_assert (keep_len == pattern_len - 1); | |
2956 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2957 | ||
2958 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2959 | ||
2960 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2961 | search_buf + keep_len, read_addr, | |
2962 | nr_to_read) != nr_to_read) | |
2963 | { | |
b3dc46ff | 2964 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2965 | "memory at %s, halting search."), |
b3dc46ff | 2966 | plongest (nr_to_read), |
08388c79 DE |
2967 | hex_string (read_addr)); |
2968 | do_cleanups (old_cleanups); | |
2969 | return -1; | |
2970 | } | |
2971 | ||
2972 | start_addr += chunk_size; | |
2973 | } | |
2974 | } | |
2975 | ||
2976 | /* Not found. */ | |
2977 | ||
2978 | do_cleanups (old_cleanups); | |
2979 | return 0; | |
2980 | } | |
2981 | ||
2982 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2983 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2984 | ||
2985 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2986 | requiring halting of the search (e.g. memory read error). | |
2987 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2988 | ||
2989 | int | |
2990 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2991 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2992 | CORE_ADDR *found_addrp) | |
2993 | { | |
2994 | struct target_ops *t; | |
2995 | int found; | |
2996 | ||
2997 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2998 | so we have to scan the target stack and handle targetdebug | |
2999 | ourselves. */ | |
3000 | ||
3001 | if (targetdebug) | |
3002 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3003 | hex_string (start_addr)); | |
3004 | ||
3005 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3006 | if (t->to_search_memory != NULL) | |
3007 | break; | |
3008 | ||
3009 | if (t != NULL) | |
3010 | { | |
3011 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3012 | pattern, pattern_len, found_addrp); | |
3013 | } | |
3014 | else | |
3015 | { | |
3016 | /* If a special version of to_search_memory isn't available, use the | |
3017 | simple version. */ | |
c35b1492 | 3018 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3019 | start_addr, search_space_len, |
3020 | pattern, pattern_len, found_addrp); | |
3021 | } | |
3022 | ||
3023 | if (targetdebug) | |
3024 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3025 | ||
3026 | return found; | |
3027 | } | |
3028 | ||
8edfe269 DJ |
3029 | /* Look through the currently pushed targets. If none of them will |
3030 | be able to restart the currently running process, issue an error | |
3031 | message. */ | |
3032 | ||
3033 | void | |
3034 | target_require_runnable (void) | |
3035 | { | |
3036 | struct target_ops *t; | |
3037 | ||
3038 | for (t = target_stack; t != NULL; t = t->beneath) | |
3039 | { | |
3040 | /* If this target knows how to create a new program, then | |
3041 | assume we will still be able to after killing the current | |
3042 | one. Either killing and mourning will not pop T, or else | |
3043 | find_default_run_target will find it again. */ | |
3044 | if (t->to_create_inferior != NULL) | |
3045 | return; | |
3046 | ||
3047 | /* Do not worry about thread_stratum targets that can not | |
3048 | create inferiors. Assume they will be pushed again if | |
3049 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3050 | if (t->to_stratum == thread_stratum |
3051 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3052 | continue; |
3053 | ||
3e43a32a MS |
3054 | error (_("The \"%s\" target does not support \"run\". " |
3055 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3056 | t->to_shortname); |
3057 | } | |
3058 | ||
3059 | /* This function is only called if the target is running. In that | |
3060 | case there should have been a process_stratum target and it | |
c378eb4e | 3061 | should either know how to create inferiors, or not... */ |
9b20d036 | 3062 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3063 | } |
3064 | ||
c906108c SS |
3065 | /* Look through the list of possible targets for a target that can |
3066 | execute a run or attach command without any other data. This is | |
3067 | used to locate the default process stratum. | |
3068 | ||
5f667f2d PA |
3069 | If DO_MESG is not NULL, the result is always valid (error() is |
3070 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3071 | |
3072 | static struct target_ops * | |
fba45db2 | 3073 | find_default_run_target (char *do_mesg) |
c906108c SS |
3074 | { |
3075 | struct target_ops **t; | |
3076 | struct target_ops *runable = NULL; | |
3077 | int count; | |
3078 | ||
3079 | count = 0; | |
3080 | ||
3081 | for (t = target_structs; t < target_structs + target_struct_size; | |
3082 | ++t) | |
3083 | { | |
c5aa993b | 3084 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3085 | { |
3086 | runable = *t; | |
3087 | ++count; | |
3088 | } | |
3089 | } | |
3090 | ||
3091 | if (count != 1) | |
5f667f2d PA |
3092 | { |
3093 | if (do_mesg) | |
3094 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3095 | else | |
3096 | return NULL; | |
3097 | } | |
c906108c SS |
3098 | |
3099 | return runable; | |
3100 | } | |
3101 | ||
3102 | void | |
136d6dae | 3103 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3104 | { |
3105 | struct target_ops *t; | |
3106 | ||
c5aa993b | 3107 | t = find_default_run_target ("attach"); |
136d6dae | 3108 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3109 | return; |
3110 | } | |
3111 | ||
c906108c | 3112 | void |
136d6dae VP |
3113 | find_default_create_inferior (struct target_ops *ops, |
3114 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3115 | int from_tty) |
c906108c SS |
3116 | { |
3117 | struct target_ops *t; | |
3118 | ||
c5aa993b | 3119 | t = find_default_run_target ("run"); |
136d6dae | 3120 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3121 | return; |
3122 | } | |
3123 | ||
2c0b251b | 3124 | static int |
b84876c2 PA |
3125 | find_default_can_async_p (void) |
3126 | { | |
3127 | struct target_ops *t; | |
3128 | ||
5f667f2d PA |
3129 | /* This may be called before the target is pushed on the stack; |
3130 | look for the default process stratum. If there's none, gdb isn't | |
3131 | configured with a native debugger, and target remote isn't | |
3132 | connected yet. */ | |
3133 | t = find_default_run_target (NULL); | |
3134 | if (t && t->to_can_async_p) | |
b84876c2 PA |
3135 | return (t->to_can_async_p) (); |
3136 | return 0; | |
3137 | } | |
3138 | ||
2c0b251b | 3139 | static int |
b84876c2 PA |
3140 | find_default_is_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_is_async_p) | |
b84876c2 PA |
3150 | return (t->to_is_async_p) (); |
3151 | return 0; | |
3152 | } | |
3153 | ||
2c0b251b | 3154 | static int |
9908b566 VP |
3155 | find_default_supports_non_stop (void) |
3156 | { | |
3157 | struct target_ops *t; | |
3158 | ||
3159 | t = find_default_run_target (NULL); | |
3160 | if (t && t->to_supports_non_stop) | |
3161 | return (t->to_supports_non_stop) (); | |
3162 | return 0; | |
3163 | } | |
3164 | ||
3165 | int | |
2c0b251b | 3166 | target_supports_non_stop (void) |
9908b566 VP |
3167 | { |
3168 | struct target_ops *t; | |
5d502164 | 3169 | |
9908b566 VP |
3170 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3171 | if (t->to_supports_non_stop) | |
3172 | return t->to_supports_non_stop (); | |
3173 | ||
3174 | return 0; | |
3175 | } | |
3176 | ||
145b16a9 UW |
3177 | /* Implement the "info proc" command. */ |
3178 | ||
451b7c33 | 3179 | int |
145b16a9 UW |
3180 | target_info_proc (char *args, enum info_proc_what what) |
3181 | { | |
3182 | struct target_ops *t; | |
3183 | ||
3184 | /* If we're already connected to something that can get us OS | |
3185 | related data, use it. Otherwise, try using the native | |
3186 | target. */ | |
3187 | if (current_target.to_stratum >= process_stratum) | |
3188 | t = current_target.beneath; | |
3189 | else | |
3190 | t = find_default_run_target (NULL); | |
3191 | ||
3192 | for (; t != NULL; t = t->beneath) | |
3193 | { | |
3194 | if (t->to_info_proc != NULL) | |
3195 | { | |
3196 | t->to_info_proc (t, args, what); | |
3197 | ||
3198 | if (targetdebug) | |
3199 | fprintf_unfiltered (gdb_stdlog, | |
3200 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3201 | ||
451b7c33 | 3202 | return 1; |
145b16a9 UW |
3203 | } |
3204 | } | |
3205 | ||
451b7c33 | 3206 | return 0; |
145b16a9 UW |
3207 | } |
3208 | ||
03583c20 UW |
3209 | static int |
3210 | find_default_supports_disable_randomization (void) | |
3211 | { | |
3212 | struct target_ops *t; | |
3213 | ||
3214 | t = find_default_run_target (NULL); | |
3215 | if (t && t->to_supports_disable_randomization) | |
3216 | return (t->to_supports_disable_randomization) (); | |
3217 | return 0; | |
3218 | } | |
3219 | ||
3220 | int | |
3221 | target_supports_disable_randomization (void) | |
3222 | { | |
3223 | struct target_ops *t; | |
3224 | ||
3225 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3226 | if (t->to_supports_disable_randomization) | |
3227 | return t->to_supports_disable_randomization (); | |
3228 | ||
3229 | return 0; | |
3230 | } | |
9908b566 | 3231 | |
07e059b5 VP |
3232 | char * |
3233 | target_get_osdata (const char *type) | |
3234 | { | |
07e059b5 VP |
3235 | struct target_ops *t; |
3236 | ||
739ef7fb PA |
3237 | /* If we're already connected to something that can get us OS |
3238 | related data, use it. Otherwise, try using the native | |
3239 | target. */ | |
3240 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3241 | t = current_target.beneath; |
739ef7fb PA |
3242 | else |
3243 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3244 | |
3245 | if (!t) | |
3246 | return NULL; | |
3247 | ||
6d097e65 | 3248 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3249 | } |
3250 | ||
6c95b8df PA |
3251 | /* Determine the current address space of thread PTID. */ |
3252 | ||
3253 | struct address_space * | |
3254 | target_thread_address_space (ptid_t ptid) | |
3255 | { | |
c0694254 | 3256 | struct address_space *aspace; |
6c95b8df | 3257 | struct inferior *inf; |
c0694254 PA |
3258 | struct target_ops *t; |
3259 | ||
3260 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3261 | { | |
3262 | if (t->to_thread_address_space != NULL) | |
3263 | { | |
3264 | aspace = t->to_thread_address_space (t, ptid); | |
3265 | gdb_assert (aspace); | |
6c95b8df | 3266 | |
c0694254 PA |
3267 | if (targetdebug) |
3268 | fprintf_unfiltered (gdb_stdlog, | |
3269 | "target_thread_address_space (%s) = %d\n", | |
3270 | target_pid_to_str (ptid), | |
3271 | address_space_num (aspace)); | |
3272 | return aspace; | |
3273 | } | |
3274 | } | |
6c95b8df PA |
3275 | |
3276 | /* Fall-back to the "main" address space of the inferior. */ | |
3277 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3278 | ||
3279 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3280 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3281 | _("Can't determine the current " |
3282 | "address space of thread %s\n"), | |
6c95b8df PA |
3283 | target_pid_to_str (ptid)); |
3284 | ||
3285 | return inf->aspace; | |
3286 | } | |
3287 | ||
7313baad UW |
3288 | |
3289 | /* Target file operations. */ | |
3290 | ||
3291 | static struct target_ops * | |
3292 | default_fileio_target (void) | |
3293 | { | |
3294 | /* If we're already connected to something that can perform | |
3295 | file I/O, use it. Otherwise, try using the native target. */ | |
3296 | if (current_target.to_stratum >= process_stratum) | |
3297 | return current_target.beneath; | |
3298 | else | |
3299 | return find_default_run_target ("file I/O"); | |
3300 | } | |
3301 | ||
3302 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3303 | target file descriptor, or -1 if an error occurs (and set | |
3304 | *TARGET_ERRNO). */ | |
3305 | int | |
3306 | target_fileio_open (const char *filename, int flags, int mode, | |
3307 | int *target_errno) | |
3308 | { | |
3309 | struct target_ops *t; | |
3310 | ||
3311 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3312 | { | |
3313 | if (t->to_fileio_open != NULL) | |
3314 | { | |
3315 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3316 | ||
3317 | if (targetdebug) | |
3318 | fprintf_unfiltered (gdb_stdlog, | |
3319 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3320 | filename, flags, mode, | |
3321 | fd, fd != -1 ? 0 : *target_errno); | |
3322 | return fd; | |
3323 | } | |
3324 | } | |
3325 | ||
3326 | *target_errno = FILEIO_ENOSYS; | |
3327 | return -1; | |
3328 | } | |
3329 | ||
3330 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3331 | Return the number of bytes written, or -1 if an error occurs | |
3332 | (and set *TARGET_ERRNO). */ | |
3333 | int | |
3334 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3335 | ULONGEST offset, int *target_errno) | |
3336 | { | |
3337 | struct target_ops *t; | |
3338 | ||
3339 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3340 | { | |
3341 | if (t->to_fileio_pwrite != NULL) | |
3342 | { | |
3343 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3344 | target_errno); | |
3345 | ||
3346 | if (targetdebug) | |
3347 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3348 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3349 | "= %d (%d)\n", |
a71b5a38 | 3350 | fd, len, pulongest (offset), |
7313baad UW |
3351 | ret, ret != -1 ? 0 : *target_errno); |
3352 | return ret; | |
3353 | } | |
3354 | } | |
3355 | ||
3356 | *target_errno = FILEIO_ENOSYS; | |
3357 | return -1; | |
3358 | } | |
3359 | ||
3360 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3361 | Return the number of bytes read, or -1 if an error occurs | |
3362 | (and set *TARGET_ERRNO). */ | |
3363 | int | |
3364 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3365 | ULONGEST offset, int *target_errno) | |
3366 | { | |
3367 | struct target_ops *t; | |
3368 | ||
3369 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3370 | { | |
3371 | if (t->to_fileio_pread != NULL) | |
3372 | { | |
3373 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3374 | target_errno); | |
3375 | ||
3376 | if (targetdebug) | |
3377 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3378 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3379 | "= %d (%d)\n", |
a71b5a38 | 3380 | fd, len, pulongest (offset), |
7313baad UW |
3381 | ret, ret != -1 ? 0 : *target_errno); |
3382 | return ret; | |
3383 | } | |
3384 | } | |
3385 | ||
3386 | *target_errno = FILEIO_ENOSYS; | |
3387 | return -1; | |
3388 | } | |
3389 | ||
3390 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3391 | (and set *TARGET_ERRNO). */ | |
3392 | int | |
3393 | target_fileio_close (int fd, int *target_errno) | |
3394 | { | |
3395 | struct target_ops *t; | |
3396 | ||
3397 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3398 | { | |
3399 | if (t->to_fileio_close != NULL) | |
3400 | { | |
3401 | int ret = t->to_fileio_close (fd, target_errno); | |
3402 | ||
3403 | if (targetdebug) | |
3404 | fprintf_unfiltered (gdb_stdlog, | |
3405 | "target_fileio_close (%d) = %d (%d)\n", | |
3406 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3407 | return ret; | |
3408 | } | |
3409 | } | |
3410 | ||
3411 | *target_errno = FILEIO_ENOSYS; | |
3412 | return -1; | |
3413 | } | |
3414 | ||
3415 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3416 | occurs (and set *TARGET_ERRNO). */ | |
3417 | int | |
3418 | target_fileio_unlink (const char *filename, int *target_errno) | |
3419 | { | |
3420 | struct target_ops *t; | |
3421 | ||
3422 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3423 | { | |
3424 | if (t->to_fileio_unlink != NULL) | |
3425 | { | |
3426 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3427 | ||
3428 | if (targetdebug) | |
3429 | fprintf_unfiltered (gdb_stdlog, | |
3430 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3431 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3432 | return ret; | |
3433 | } | |
3434 | } | |
3435 | ||
3436 | *target_errno = FILEIO_ENOSYS; | |
3437 | return -1; | |
3438 | } | |
3439 | ||
b9e7b9c3 UW |
3440 | /* Read value of symbolic link FILENAME on the target. Return a |
3441 | null-terminated string allocated via xmalloc, or NULL if an error | |
3442 | occurs (and set *TARGET_ERRNO). */ | |
3443 | char * | |
3444 | target_fileio_readlink (const char *filename, int *target_errno) | |
3445 | { | |
3446 | struct target_ops *t; | |
3447 | ||
3448 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3449 | { | |
3450 | if (t->to_fileio_readlink != NULL) | |
3451 | { | |
3452 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3453 | ||
3454 | if (targetdebug) | |
3455 | fprintf_unfiltered (gdb_stdlog, | |
3456 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3457 | filename, ret? ret : "(nil)", | |
3458 | ret? 0 : *target_errno); | |
3459 | return ret; | |
3460 | } | |
3461 | } | |
3462 | ||
3463 | *target_errno = FILEIO_ENOSYS; | |
3464 | return NULL; | |
3465 | } | |
3466 | ||
7313baad UW |
3467 | static void |
3468 | target_fileio_close_cleanup (void *opaque) | |
3469 | { | |
3470 | int fd = *(int *) opaque; | |
3471 | int target_errno; | |
3472 | ||
3473 | target_fileio_close (fd, &target_errno); | |
3474 | } | |
3475 | ||
3476 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3477 | return the size of the transferred data. PADDING additional bytes are | |
3478 | available in *BUF_P. This is a helper function for | |
3479 | target_fileio_read_alloc; see the declaration of that function for more | |
3480 | information. */ | |
3481 | ||
3482 | static LONGEST | |
3483 | target_fileio_read_alloc_1 (const char *filename, | |
3484 | gdb_byte **buf_p, int padding) | |
3485 | { | |
3486 | struct cleanup *close_cleanup; | |
3487 | size_t buf_alloc, buf_pos; | |
3488 | gdb_byte *buf; | |
3489 | LONGEST n; | |
3490 | int fd; | |
3491 | int target_errno; | |
3492 | ||
3493 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3494 | if (fd == -1) | |
3495 | return -1; | |
3496 | ||
3497 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3498 | ||
3499 | /* Start by reading up to 4K at a time. The target will throttle | |
3500 | this number down if necessary. */ | |
3501 | buf_alloc = 4096; | |
3502 | buf = xmalloc (buf_alloc); | |
3503 | buf_pos = 0; | |
3504 | while (1) | |
3505 | { | |
3506 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3507 | buf_alloc - buf_pos - padding, buf_pos, | |
3508 | &target_errno); | |
3509 | if (n < 0) | |
3510 | { | |
3511 | /* An error occurred. */ | |
3512 | do_cleanups (close_cleanup); | |
3513 | xfree (buf); | |
3514 | return -1; | |
3515 | } | |
3516 | else if (n == 0) | |
3517 | { | |
3518 | /* Read all there was. */ | |
3519 | do_cleanups (close_cleanup); | |
3520 | if (buf_pos == 0) | |
3521 | xfree (buf); | |
3522 | else | |
3523 | *buf_p = buf; | |
3524 | return buf_pos; | |
3525 | } | |
3526 | ||
3527 | buf_pos += n; | |
3528 | ||
3529 | /* If the buffer is filling up, expand it. */ | |
3530 | if (buf_alloc < buf_pos * 2) | |
3531 | { | |
3532 | buf_alloc *= 2; | |
3533 | buf = xrealloc (buf, buf_alloc); | |
3534 | } | |
3535 | ||
3536 | QUIT; | |
3537 | } | |
3538 | } | |
3539 | ||
3540 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3541 | the size of the transferred data. See the declaration in "target.h" | |
3542 | function for more information about the return value. */ | |
3543 | ||
3544 | LONGEST | |
3545 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3546 | { | |
3547 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3548 | } | |
3549 | ||
3550 | /* Read target file FILENAME. The result is NUL-terminated and | |
3551 | returned as a string, allocated using xmalloc. If an error occurs | |
3552 | or the transfer is unsupported, NULL is returned. Empty objects | |
3553 | are returned as allocated but empty strings. A warning is issued | |
3554 | if the result contains any embedded NUL bytes. */ | |
3555 | ||
3556 | char * | |
3557 | target_fileio_read_stralloc (const char *filename) | |
3558 | { | |
39086a0e PA |
3559 | gdb_byte *buffer; |
3560 | char *bufstr; | |
7313baad UW |
3561 | LONGEST i, transferred; |
3562 | ||
39086a0e PA |
3563 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3564 | bufstr = (char *) buffer; | |
7313baad UW |
3565 | |
3566 | if (transferred < 0) | |
3567 | return NULL; | |
3568 | ||
3569 | if (transferred == 0) | |
3570 | return xstrdup (""); | |
3571 | ||
39086a0e | 3572 | bufstr[transferred] = 0; |
7313baad UW |
3573 | |
3574 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3575 | for (i = strlen (bufstr); i < transferred; i++) |
3576 | if (bufstr[i] != 0) | |
7313baad UW |
3577 | { |
3578 | warning (_("target file %s " | |
3579 | "contained unexpected null characters"), | |
3580 | filename); | |
3581 | break; | |
3582 | } | |
3583 | ||
39086a0e | 3584 | return bufstr; |
7313baad UW |
3585 | } |
3586 | ||
3587 | ||
e0d24f8d WZ |
3588 | static int |
3589 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3590 | { | |
f5656ead | 3591 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3592 | } |
3593 | ||
5009afc5 AS |
3594 | static int |
3595 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3596 | CORE_ADDR addr, | |
3597 | CORE_ADDR start, int length) | |
3598 | { | |
3599 | return addr >= start && addr < start + length; | |
3600 | } | |
3601 | ||
c2250ad1 UW |
3602 | static struct gdbarch * |
3603 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3604 | { | |
f5656ead | 3605 | return target_gdbarch (); |
c2250ad1 UW |
3606 | } |
3607 | ||
c906108c | 3608 | static int |
fba45db2 | 3609 | return_zero (void) |
c906108c SS |
3610 | { |
3611 | return 0; | |
3612 | } | |
3613 | ||
3614 | static int | |
fba45db2 | 3615 | return_one (void) |
c906108c SS |
3616 | { |
3617 | return 1; | |
3618 | } | |
3619 | ||
ccaa32c7 GS |
3620 | static int |
3621 | return_minus_one (void) | |
3622 | { | |
3623 | return -1; | |
3624 | } | |
3625 | ||
ed9a39eb JM |
3626 | /* |
3627 | * Find the next target down the stack from the specified target. | |
3628 | */ | |
3629 | ||
3630 | struct target_ops * | |
fba45db2 | 3631 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3632 | { |
258b763a | 3633 | return t->beneath; |
ed9a39eb JM |
3634 | } |
3635 | ||
c906108c SS |
3636 | \f |
3637 | /* The inferior process has died. Long live the inferior! */ | |
3638 | ||
3639 | void | |
fba45db2 | 3640 | generic_mourn_inferior (void) |
c906108c | 3641 | { |
7f9f62ba | 3642 | ptid_t ptid; |
c906108c | 3643 | |
7f9f62ba | 3644 | ptid = inferior_ptid; |
39f77062 | 3645 | inferior_ptid = null_ptid; |
7f9f62ba | 3646 | |
f59f708a PA |
3647 | /* Mark breakpoints uninserted in case something tries to delete a |
3648 | breakpoint while we delete the inferior's threads (which would | |
3649 | fail, since the inferior is long gone). */ | |
3650 | mark_breakpoints_out (); | |
3651 | ||
7f9f62ba PA |
3652 | if (!ptid_equal (ptid, null_ptid)) |
3653 | { | |
3654 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3655 | exit_inferior (pid); |
7f9f62ba PA |
3656 | } |
3657 | ||
f59f708a PA |
3658 | /* Note this wipes step-resume breakpoints, so needs to be done |
3659 | after exit_inferior, which ends up referencing the step-resume | |
3660 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3661 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3662 | |
c906108c SS |
3663 | registers_changed (); |
3664 | ||
c906108c SS |
3665 | reopen_exec_file (); |
3666 | reinit_frame_cache (); | |
3667 | ||
9a4105ab AC |
3668 | if (deprecated_detach_hook) |
3669 | deprecated_detach_hook (); | |
c906108c SS |
3670 | } |
3671 | \f | |
fd0a2a6f MK |
3672 | /* Convert a normal process ID to a string. Returns the string in a |
3673 | static buffer. */ | |
c906108c SS |
3674 | |
3675 | char * | |
39f77062 | 3676 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3677 | { |
fd0a2a6f | 3678 | static char buf[32]; |
c906108c | 3679 | |
5fff8fc0 | 3680 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3681 | return buf; |
3682 | } | |
3683 | ||
2c0b251b | 3684 | static char * |
117de6a9 PA |
3685 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3686 | { | |
3687 | return normal_pid_to_str (ptid); | |
3688 | } | |
3689 | ||
9b4eba8e HZ |
3690 | /* Error-catcher for target_find_memory_regions. */ |
3691 | static int | |
b8edc417 | 3692 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3693 | { |
9b4eba8e | 3694 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3695 | return 0; |
3696 | } | |
3697 | ||
9b4eba8e HZ |
3698 | /* Error-catcher for target_make_corefile_notes. */ |
3699 | static char * | |
3700 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3701 | { |
9b4eba8e | 3702 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3703 | return NULL; |
3704 | } | |
3705 | ||
6b04bdb7 MS |
3706 | /* Error-catcher for target_get_bookmark. */ |
3707 | static gdb_byte * | |
3708 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3709 | { | |
3710 | tcomplain (); | |
3711 | return NULL; | |
3712 | } | |
3713 | ||
3714 | /* Error-catcher for target_goto_bookmark. */ | |
3715 | static void | |
3716 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3717 | { | |
3718 | tcomplain (); | |
3719 | } | |
3720 | ||
c906108c SS |
3721 | /* Set up the handful of non-empty slots needed by the dummy target |
3722 | vector. */ | |
3723 | ||
3724 | static void | |
fba45db2 | 3725 | init_dummy_target (void) |
c906108c SS |
3726 | { |
3727 | dummy_target.to_shortname = "None"; | |
3728 | dummy_target.to_longname = "None"; | |
3729 | dummy_target.to_doc = ""; | |
3730 | dummy_target.to_attach = find_default_attach; | |
136d6dae VP |
3731 | dummy_target.to_detach = |
3732 | (void (*)(struct target_ops *, char *, int))target_ignore; | |
c906108c | 3733 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
3734 | dummy_target.to_can_async_p = find_default_can_async_p; |
3735 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 3736 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3737 | dummy_target.to_supports_disable_randomization |
3738 | = find_default_supports_disable_randomization; | |
117de6a9 | 3739 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3740 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3741 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3742 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3743 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3744 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
0b603eba | 3745 | dummy_target.to_xfer_partial = default_xfer_partial; |
c35b1492 PA |
3746 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3747 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3748 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3749 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3750 | dummy_target.to_has_execution |
3751 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
7155de5a HZ |
3752 | dummy_target.to_stopped_by_watchpoint = return_zero; |
3753 | dummy_target.to_stopped_data_address = | |
3754 | (int (*) (struct target_ops *, CORE_ADDR *)) return_zero; | |
c906108c SS |
3755 | dummy_target.to_magic = OPS_MAGIC; |
3756 | } | |
c906108c | 3757 | \f |
c906108c | 3758 | static void |
fba45db2 | 3759 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3760 | { |
3761 | debug_target.to_open (args, from_tty); | |
3762 | ||
96baa820 | 3763 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3764 | } |
3765 | ||
f1c07ab0 | 3766 | void |
460014f5 | 3767 | target_close (struct target_ops *targ) |
f1c07ab0 | 3768 | { |
7fdc1521 TT |
3769 | gdb_assert (!target_is_pushed (targ)); |
3770 | ||
f1c07ab0 | 3771 | if (targ->to_xclose != NULL) |
460014f5 | 3772 | targ->to_xclose (targ); |
f1c07ab0 | 3773 | else if (targ->to_close != NULL) |
460014f5 | 3774 | targ->to_close (); |
947b8855 PA |
3775 | |
3776 | if (targetdebug) | |
460014f5 | 3777 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3778 | } |
3779 | ||
136d6dae VP |
3780 | void |
3781 | target_attach (char *args, int from_tty) | |
3782 | { | |
3783 | struct target_ops *t; | |
5d502164 | 3784 | |
136d6dae VP |
3785 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3786 | { | |
3787 | if (t->to_attach != NULL) | |
3788 | { | |
3789 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3790 | if (targetdebug) |
3791 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3792 | args, from_tty); | |
136d6dae VP |
3793 | return; |
3794 | } | |
3795 | } | |
3796 | ||
3797 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3798 | _("could not find a target to attach")); |
136d6dae VP |
3799 | } |
3800 | ||
28439f5e PA |
3801 | int |
3802 | target_thread_alive (ptid_t ptid) | |
c906108c | 3803 | { |
28439f5e | 3804 | struct target_ops *t; |
5d502164 | 3805 | |
28439f5e PA |
3806 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3807 | { | |
3808 | if (t->to_thread_alive != NULL) | |
3809 | { | |
3810 | int retval; | |
c906108c | 3811 | |
28439f5e PA |
3812 | retval = t->to_thread_alive (t, ptid); |
3813 | if (targetdebug) | |
3814 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3815 | PIDGET (ptid), retval); | |
3816 | ||
3817 | return retval; | |
3818 | } | |
3819 | } | |
3820 | ||
3821 | return 0; | |
3822 | } | |
3823 | ||
3824 | void | |
3825 | target_find_new_threads (void) | |
3826 | { | |
3827 | struct target_ops *t; | |
5d502164 | 3828 | |
28439f5e PA |
3829 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3830 | { | |
3831 | if (t->to_find_new_threads != NULL) | |
3832 | { | |
3833 | t->to_find_new_threads (t); | |
3834 | if (targetdebug) | |
3835 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3836 | ||
3837 | return; | |
3838 | } | |
3839 | } | |
c906108c SS |
3840 | } |
3841 | ||
d914c394 SS |
3842 | void |
3843 | target_stop (ptid_t ptid) | |
3844 | { | |
3845 | if (!may_stop) | |
3846 | { | |
3847 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3848 | return; | |
3849 | } | |
3850 | ||
3851 | (*current_target.to_stop) (ptid); | |
3852 | } | |
3853 | ||
c906108c | 3854 | static void |
28439f5e | 3855 | debug_to_post_attach (int pid) |
c906108c | 3856 | { |
28439f5e | 3857 | debug_target.to_post_attach (pid); |
c906108c | 3858 | |
28439f5e | 3859 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3860 | } |
3861 | ||
09826ec5 PA |
3862 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3863 | result. The LIST incoming argument is released. */ | |
3864 | ||
3865 | static char * | |
3866 | str_comma_list_concat_elem (char *list, const char *elem) | |
3867 | { | |
3868 | if (list == NULL) | |
3869 | return xstrdup (elem); | |
3870 | else | |
3871 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3872 | } | |
3873 | ||
3874 | /* Helper for target_options_to_string. If OPT is present in | |
3875 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3876 | Returns the new resulting string. OPT is removed from | |
3877 | TARGET_OPTIONS. */ | |
3878 | ||
3879 | static char * | |
3880 | do_option (int *target_options, char *ret, | |
3881 | int opt, char *opt_str) | |
3882 | { | |
3883 | if ((*target_options & opt) != 0) | |
3884 | { | |
3885 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3886 | *target_options &= ~opt; | |
3887 | } | |
3888 | ||
3889 | return ret; | |
3890 | } | |
3891 | ||
3892 | char * | |
3893 | target_options_to_string (int target_options) | |
3894 | { | |
3895 | char *ret = NULL; | |
3896 | ||
3897 | #define DO_TARG_OPTION(OPT) \ | |
3898 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3899 | ||
3900 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3901 | ||
3902 | if (target_options != 0) | |
3903 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3904 | ||
3905 | if (ret == NULL) | |
3906 | ret = xstrdup (""); | |
3907 | return ret; | |
3908 | } | |
3909 | ||
bf0c5130 | 3910 | static void |
56be3814 UW |
3911 | debug_print_register (const char * func, |
3912 | struct regcache *regcache, int regno) | |
bf0c5130 | 3913 | { |
f8d29908 | 3914 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3915 | |
bf0c5130 | 3916 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3917 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3918 | && gdbarch_register_name (gdbarch, regno) != NULL |
3919 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3920 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3921 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3922 | else |
3923 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3924 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3925 | { |
e17a4113 | 3926 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3927 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3928 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3929 | |
0ff58721 | 3930 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3931 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3932 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3933 | { |
3934 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3935 | } | |
81c4a259 | 3936 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3937 | { |
e17a4113 | 3938 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3939 | |
0b1553bc UW |
3940 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3941 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3942 | } |
3943 | } | |
3944 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3945 | } | |
3946 | ||
28439f5e PA |
3947 | void |
3948 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3949 | { |
28439f5e | 3950 | struct target_ops *t; |
5d502164 | 3951 | |
28439f5e PA |
3952 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3953 | { | |
3954 | if (t->to_fetch_registers != NULL) | |
3955 | { | |
3956 | t->to_fetch_registers (t, regcache, regno); | |
3957 | if (targetdebug) | |
3958 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3959 | return; | |
3960 | } | |
3961 | } | |
c906108c SS |
3962 | } |
3963 | ||
28439f5e PA |
3964 | void |
3965 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3966 | { |
28439f5e | 3967 | struct target_ops *t; |
5d502164 | 3968 | |
d914c394 SS |
3969 | if (!may_write_registers) |
3970 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3971 | ||
28439f5e PA |
3972 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3973 | { | |
3974 | if (t->to_store_registers != NULL) | |
3975 | { | |
3976 | t->to_store_registers (t, regcache, regno); | |
3977 | if (targetdebug) | |
3978 | { | |
3979 | debug_print_register ("target_store_registers", regcache, regno); | |
3980 | } | |
3981 | return; | |
3982 | } | |
3983 | } | |
3984 | ||
3985 | noprocess (); | |
c906108c SS |
3986 | } |
3987 | ||
dc146f7c VP |
3988 | int |
3989 | target_core_of_thread (ptid_t ptid) | |
3990 | { | |
3991 | struct target_ops *t; | |
3992 | ||
3993 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3994 | { | |
3995 | if (t->to_core_of_thread != NULL) | |
3996 | { | |
3997 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 3998 | |
dc146f7c | 3999 | if (targetdebug) |
3e43a32a MS |
4000 | fprintf_unfiltered (gdb_stdlog, |
4001 | "target_core_of_thread (%d) = %d\n", | |
dc146f7c VP |
4002 | PIDGET (ptid), retval); |
4003 | return retval; | |
4004 | } | |
4005 | } | |
4006 | ||
4007 | return -1; | |
4008 | } | |
4009 | ||
4a5e7a5b PA |
4010 | int |
4011 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4012 | { | |
4013 | struct target_ops *t; | |
4014 | ||
4015 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4016 | { | |
4017 | if (t->to_verify_memory != NULL) | |
4018 | { | |
4019 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4020 | |
4a5e7a5b | 4021 | if (targetdebug) |
3e43a32a MS |
4022 | fprintf_unfiltered (gdb_stdlog, |
4023 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4024 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4025 | pulongest (size), |
4026 | retval); | |
4027 | return retval; | |
4028 | } | |
4029 | } | |
4030 | ||
4031 | tcomplain (); | |
4032 | } | |
4033 | ||
9c06b0b4 TJB |
4034 | /* The documentation for this function is in its prototype declaration in |
4035 | target.h. */ | |
4036 | ||
4037 | int | |
4038 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4039 | { | |
4040 | struct target_ops *t; | |
4041 | ||
4042 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4043 | if (t->to_insert_mask_watchpoint != NULL) | |
4044 | { | |
4045 | int ret; | |
4046 | ||
4047 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4048 | ||
4049 | if (targetdebug) | |
4050 | fprintf_unfiltered (gdb_stdlog, "\ | |
4051 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4052 | core_addr_to_string (addr), | |
4053 | core_addr_to_string (mask), rw, ret); | |
4054 | ||
4055 | return ret; | |
4056 | } | |
4057 | ||
4058 | return 1; | |
4059 | } | |
4060 | ||
4061 | /* The documentation for this function is in its prototype declaration in | |
4062 | target.h. */ | |
4063 | ||
4064 | int | |
4065 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4066 | { | |
4067 | struct target_ops *t; | |
4068 | ||
4069 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4070 | if (t->to_remove_mask_watchpoint != NULL) | |
4071 | { | |
4072 | int ret; | |
4073 | ||
4074 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4075 | ||
4076 | if (targetdebug) | |
4077 | fprintf_unfiltered (gdb_stdlog, "\ | |
4078 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4079 | core_addr_to_string (addr), | |
4080 | core_addr_to_string (mask), rw, ret); | |
4081 | ||
4082 | return ret; | |
4083 | } | |
4084 | ||
4085 | return 1; | |
4086 | } | |
4087 | ||
4088 | /* The documentation for this function is in its prototype declaration | |
4089 | in target.h. */ | |
4090 | ||
4091 | int | |
4092 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4093 | { | |
4094 | struct target_ops *t; | |
4095 | ||
4096 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4097 | if (t->to_masked_watch_num_registers != NULL) | |
4098 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4099 | ||
4100 | return -1; | |
4101 | } | |
4102 | ||
f1310107 TJB |
4103 | /* The documentation for this function is in its prototype declaration |
4104 | in target.h. */ | |
4105 | ||
4106 | int | |
4107 | target_ranged_break_num_registers (void) | |
4108 | { | |
4109 | struct target_ops *t; | |
4110 | ||
4111 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4112 | if (t->to_ranged_break_num_registers != NULL) | |
4113 | return t->to_ranged_break_num_registers (t); | |
4114 | ||
4115 | return -1; | |
4116 | } | |
4117 | ||
02d27625 MM |
4118 | /* See target.h. */ |
4119 | ||
4120 | int | |
4121 | target_supports_btrace (void) | |
4122 | { | |
4123 | struct target_ops *t; | |
4124 | ||
4125 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4126 | if (t->to_supports_btrace != NULL) | |
4127 | return t->to_supports_btrace (); | |
4128 | ||
4129 | return 0; | |
4130 | } | |
4131 | ||
4132 | /* See target.h. */ | |
4133 | ||
4134 | struct btrace_target_info * | |
4135 | target_enable_btrace (ptid_t ptid) | |
4136 | { | |
4137 | struct target_ops *t; | |
4138 | ||
4139 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4140 | if (t->to_enable_btrace != NULL) | |
4141 | return t->to_enable_btrace (ptid); | |
4142 | ||
4143 | tcomplain (); | |
4144 | return NULL; | |
4145 | } | |
4146 | ||
4147 | /* See target.h. */ | |
4148 | ||
4149 | void | |
4150 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4151 | { | |
4152 | struct target_ops *t; | |
4153 | ||
4154 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4155 | if (t->to_disable_btrace != NULL) | |
4156 | return t->to_disable_btrace (btinfo); | |
4157 | ||
4158 | tcomplain (); | |
4159 | } | |
4160 | ||
4161 | /* See target.h. */ | |
4162 | ||
4163 | void | |
4164 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4165 | { | |
4166 | struct target_ops *t; | |
4167 | ||
4168 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4169 | if (t->to_teardown_btrace != NULL) | |
4170 | return t->to_teardown_btrace (btinfo); | |
4171 | ||
4172 | tcomplain (); | |
4173 | } | |
4174 | ||
4175 | /* See target.h. */ | |
4176 | ||
4177 | VEC (btrace_block_s) * | |
4178 | target_read_btrace (struct btrace_target_info *btinfo, | |
4179 | enum btrace_read_type type) | |
4180 | { | |
4181 | struct target_ops *t; | |
4182 | ||
4183 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4184 | if (t->to_read_btrace != NULL) | |
4185 | return t->to_read_btrace (btinfo, type); | |
4186 | ||
4187 | tcomplain (); | |
4188 | return NULL; | |
4189 | } | |
4190 | ||
d02ed0bb MM |
4191 | /* See target.h. */ |
4192 | ||
7c1687a9 MM |
4193 | void |
4194 | target_stop_recording (void) | |
4195 | { | |
4196 | struct target_ops *t; | |
4197 | ||
4198 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4199 | if (t->to_stop_recording != NULL) | |
4200 | { | |
4201 | t->to_stop_recording (); | |
4202 | return; | |
4203 | } | |
4204 | ||
4205 | /* This is optional. */ | |
4206 | } | |
4207 | ||
4208 | /* See target.h. */ | |
4209 | ||
d02ed0bb MM |
4210 | void |
4211 | target_info_record (void) | |
4212 | { | |
4213 | struct target_ops *t; | |
4214 | ||
4215 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4216 | if (t->to_info_record != NULL) | |
4217 | { | |
4218 | t->to_info_record (); | |
4219 | return; | |
4220 | } | |
4221 | ||
4222 | tcomplain (); | |
4223 | } | |
4224 | ||
4225 | /* See target.h. */ | |
4226 | ||
4227 | void | |
85e1311a | 4228 | target_save_record (const char *filename) |
d02ed0bb MM |
4229 | { |
4230 | struct target_ops *t; | |
4231 | ||
4232 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4233 | if (t->to_save_record != NULL) | |
4234 | { | |
4235 | t->to_save_record (filename); | |
4236 | return; | |
4237 | } | |
4238 | ||
4239 | tcomplain (); | |
4240 | } | |
4241 | ||
4242 | /* See target.h. */ | |
4243 | ||
4244 | int | |
4245 | target_supports_delete_record (void) | |
4246 | { | |
4247 | struct target_ops *t; | |
4248 | ||
4249 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4250 | if (t->to_delete_record != NULL) | |
4251 | return 1; | |
4252 | ||
4253 | return 0; | |
4254 | } | |
4255 | ||
4256 | /* See target.h. */ | |
4257 | ||
4258 | void | |
4259 | target_delete_record (void) | |
4260 | { | |
4261 | struct target_ops *t; | |
4262 | ||
4263 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4264 | if (t->to_delete_record != NULL) | |
4265 | { | |
4266 | t->to_delete_record (); | |
4267 | return; | |
4268 | } | |
4269 | ||
4270 | tcomplain (); | |
4271 | } | |
4272 | ||
4273 | /* See target.h. */ | |
4274 | ||
4275 | int | |
4276 | target_record_is_replaying (void) | |
4277 | { | |
4278 | struct target_ops *t; | |
4279 | ||
4280 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4281 | if (t->to_record_is_replaying != NULL) | |
4282 | return t->to_record_is_replaying (); | |
4283 | ||
4284 | return 0; | |
4285 | } | |
4286 | ||
4287 | /* See target.h. */ | |
4288 | ||
4289 | void | |
4290 | target_goto_record_begin (void) | |
4291 | { | |
4292 | struct target_ops *t; | |
4293 | ||
4294 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4295 | if (t->to_goto_record_begin != NULL) | |
4296 | { | |
4297 | t->to_goto_record_begin (); | |
4298 | return; | |
4299 | } | |
4300 | ||
4301 | tcomplain (); | |
4302 | } | |
4303 | ||
4304 | /* See target.h. */ | |
4305 | ||
4306 | void | |
4307 | target_goto_record_end (void) | |
4308 | { | |
4309 | struct target_ops *t; | |
4310 | ||
4311 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4312 | if (t->to_goto_record_end != NULL) | |
4313 | { | |
4314 | t->to_goto_record_end (); | |
4315 | return; | |
4316 | } | |
4317 | ||
4318 | tcomplain (); | |
4319 | } | |
4320 | ||
4321 | /* See target.h. */ | |
4322 | ||
4323 | void | |
4324 | target_goto_record (ULONGEST insn) | |
4325 | { | |
4326 | struct target_ops *t; | |
4327 | ||
4328 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4329 | if (t->to_goto_record != NULL) | |
4330 | { | |
4331 | t->to_goto_record (insn); | |
4332 | return; | |
4333 | } | |
4334 | ||
4335 | tcomplain (); | |
4336 | } | |
4337 | ||
67c86d06 MM |
4338 | /* See target.h. */ |
4339 | ||
4340 | void | |
4341 | target_insn_history (int size, int flags) | |
4342 | { | |
4343 | struct target_ops *t; | |
4344 | ||
4345 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4346 | if (t->to_insn_history != NULL) | |
4347 | { | |
4348 | t->to_insn_history (size, flags); | |
4349 | return; | |
4350 | } | |
4351 | ||
4352 | tcomplain (); | |
4353 | } | |
4354 | ||
4355 | /* See target.h. */ | |
4356 | ||
4357 | void | |
4358 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4359 | { | |
4360 | struct target_ops *t; | |
4361 | ||
4362 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4363 | if (t->to_insn_history_from != NULL) | |
4364 | { | |
4365 | t->to_insn_history_from (from, size, flags); | |
4366 | return; | |
4367 | } | |
4368 | ||
4369 | tcomplain (); | |
4370 | } | |
4371 | ||
4372 | /* See target.h. */ | |
4373 | ||
4374 | void | |
4375 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4376 | { | |
4377 | struct target_ops *t; | |
4378 | ||
4379 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4380 | if (t->to_insn_history_range != NULL) | |
4381 | { | |
4382 | t->to_insn_history_range (begin, end, flags); | |
4383 | return; | |
4384 | } | |
4385 | ||
4386 | tcomplain (); | |
4387 | } | |
4388 | ||
15984c13 MM |
4389 | /* See target.h. */ |
4390 | ||
4391 | void | |
4392 | target_call_history (int size, int flags) | |
4393 | { | |
4394 | struct target_ops *t; | |
4395 | ||
4396 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4397 | if (t->to_call_history != NULL) | |
4398 | { | |
4399 | t->to_call_history (size, flags); | |
4400 | return; | |
4401 | } | |
4402 | ||
4403 | tcomplain (); | |
4404 | } | |
4405 | ||
4406 | /* See target.h. */ | |
4407 | ||
4408 | void | |
4409 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4410 | { | |
4411 | struct target_ops *t; | |
4412 | ||
4413 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4414 | if (t->to_call_history_from != NULL) | |
4415 | { | |
4416 | t->to_call_history_from (begin, size, flags); | |
4417 | return; | |
4418 | } | |
4419 | ||
4420 | tcomplain (); | |
4421 | } | |
4422 | ||
4423 | /* See target.h. */ | |
4424 | ||
4425 | void | |
4426 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4427 | { | |
4428 | struct target_ops *t; | |
4429 | ||
4430 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4431 | if (t->to_call_history_range != NULL) | |
4432 | { | |
4433 | t->to_call_history_range (begin, end, flags); | |
4434 | return; | |
4435 | } | |
4436 | ||
4437 | tcomplain (); | |
4438 | } | |
4439 | ||
c906108c | 4440 | static void |
316f2060 | 4441 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 4442 | { |
316f2060 | 4443 | debug_target.to_prepare_to_store (regcache); |
c906108c | 4444 | |
96baa820 | 4445 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4446 | } |
4447 | ||
4448 | static int | |
961cb7b5 | 4449 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4450 | int write, struct mem_attrib *attrib, |
4451 | struct target_ops *target) | |
c906108c SS |
4452 | { |
4453 | int retval; | |
4454 | ||
c8e73a31 AC |
4455 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4456 | attrib, target); | |
c906108c | 4457 | |
96baa820 | 4458 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4459 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4460 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4461 | write ? "write" : "read", retval); |
c906108c | 4462 | |
c906108c SS |
4463 | if (retval > 0) |
4464 | { | |
4465 | int i; | |
4466 | ||
96baa820 | 4467 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4468 | for (i = 0; i < retval; i++) |
4469 | { | |
53b71562 | 4470 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4471 | { |
4472 | if (targetdebug < 2 && i > 0) | |
4473 | { | |
4474 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4475 | break; | |
4476 | } | |
4477 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4478 | } | |
2bc416ba | 4479 | |
96baa820 | 4480 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4481 | } |
4482 | } | |
4483 | ||
96baa820 | 4484 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4485 | |
4486 | return retval; | |
4487 | } | |
4488 | ||
4489 | static void | |
fba45db2 | 4490 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4491 | { |
4492 | debug_target.to_files_info (target); | |
4493 | ||
96baa820 | 4494 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4495 | } |
4496 | ||
4497 | static int | |
a6d9a66e UW |
4498 | debug_to_insert_breakpoint (struct gdbarch *gdbarch, |
4499 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4500 | { |
4501 | int retval; | |
4502 | ||
a6d9a66e | 4503 | retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt); |
c906108c | 4504 | |
96baa820 | 4505 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4506 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4507 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4508 | (unsigned long) retval); |
c906108c SS |
4509 | return retval; |
4510 | } | |
4511 | ||
4512 | static int | |
a6d9a66e UW |
4513 | debug_to_remove_breakpoint (struct gdbarch *gdbarch, |
4514 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4515 | { |
4516 | int retval; | |
4517 | ||
a6d9a66e | 4518 | retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt); |
c906108c | 4519 | |
96baa820 | 4520 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4521 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4522 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4523 | (unsigned long) retval); |
c906108c SS |
4524 | return retval; |
4525 | } | |
4526 | ||
ccaa32c7 GS |
4527 | static int |
4528 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
4529 | { | |
4530 | int retval; | |
4531 | ||
4532 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
4533 | ||
4534 | fprintf_unfiltered (gdb_stdlog, | |
4535 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4536 | (unsigned long) type, | |
4537 | (unsigned long) cnt, | |
4538 | (unsigned long) from_tty, | |
4539 | (unsigned long) retval); | |
4540 | return retval; | |
4541 | } | |
4542 | ||
e0d24f8d WZ |
4543 | static int |
4544 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
4545 | { | |
4546 | CORE_ADDR retval; | |
4547 | ||
4548 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
4549 | ||
4550 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4551 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4552 | core_addr_to_string (addr), (unsigned long) len, | |
4553 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4554 | return retval; |
4555 | } | |
4556 | ||
0cf6dd15 TJB |
4557 | static int |
4558 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
4559 | struct expression *cond) | |
4560 | { | |
4561 | int retval; | |
4562 | ||
3e43a32a MS |
4563 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
4564 | rw, cond); | |
0cf6dd15 TJB |
4565 | |
4566 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4567 | "target_can_accel_watchpoint_condition " |
4568 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4569 | core_addr_to_string (addr), len, rw, |
4570 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4571 | return retval; |
4572 | } | |
4573 | ||
ccaa32c7 GS |
4574 | static int |
4575 | debug_to_stopped_by_watchpoint (void) | |
4576 | { | |
4577 | int retval; | |
4578 | ||
4579 | retval = debug_target.to_stopped_by_watchpoint (); | |
4580 | ||
4581 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4582 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4583 | (unsigned long) retval); |
4584 | return retval; | |
4585 | } | |
4586 | ||
4aa7a7f5 JJ |
4587 | static int |
4588 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4589 | { |
4aa7a7f5 | 4590 | int retval; |
ccaa32c7 | 4591 | |
4aa7a7f5 | 4592 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4593 | |
4594 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4595 | "target_stopped_data_address ([%s]) = %ld\n", |
4596 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4597 | (unsigned long)retval); |
ccaa32c7 GS |
4598 | return retval; |
4599 | } | |
4600 | ||
5009afc5 AS |
4601 | static int |
4602 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4603 | CORE_ADDR addr, | |
4604 | CORE_ADDR start, int length) | |
4605 | { | |
4606 | int retval; | |
4607 | ||
4608 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4609 | start, length); | |
4610 | ||
4611 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4612 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4613 | core_addr_to_string (addr), core_addr_to_string (start), | |
4614 | length, retval); | |
5009afc5 AS |
4615 | return retval; |
4616 | } | |
4617 | ||
ccaa32c7 | 4618 | static int |
a6d9a66e UW |
4619 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
4620 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4621 | { |
4622 | int retval; | |
4623 | ||
a6d9a66e | 4624 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4625 | |
4626 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4627 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4628 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4629 | (unsigned long) retval); |
4630 | return retval; | |
4631 | } | |
4632 | ||
4633 | static int | |
a6d9a66e UW |
4634 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
4635 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4636 | { |
4637 | int retval; | |
4638 | ||
a6d9a66e | 4639 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4640 | |
4641 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4642 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4643 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4644 | (unsigned long) retval); |
4645 | return retval; | |
4646 | } | |
4647 | ||
4648 | static int | |
0cf6dd15 TJB |
4649 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
4650 | struct expression *cond) | |
ccaa32c7 GS |
4651 | { |
4652 | int retval; | |
4653 | ||
0cf6dd15 | 4654 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4655 | |
4656 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4657 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4658 | core_addr_to_string (addr), len, type, | |
4659 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4660 | return retval; |
4661 | } | |
4662 | ||
4663 | static int | |
0cf6dd15 TJB |
4664 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type, |
4665 | struct expression *cond) | |
ccaa32c7 GS |
4666 | { |
4667 | int retval; | |
4668 | ||
0cf6dd15 | 4669 | retval = debug_target.to_remove_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4670 | |
4671 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4672 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4673 | core_addr_to_string (addr), len, type, | |
4674 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4675 | return retval; |
4676 | } | |
4677 | ||
c906108c | 4678 | static void |
fba45db2 | 4679 | debug_to_terminal_init (void) |
c906108c SS |
4680 | { |
4681 | debug_target.to_terminal_init (); | |
4682 | ||
96baa820 | 4683 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4684 | } |
4685 | ||
4686 | static void | |
fba45db2 | 4687 | debug_to_terminal_inferior (void) |
c906108c SS |
4688 | { |
4689 | debug_target.to_terminal_inferior (); | |
4690 | ||
96baa820 | 4691 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4692 | } |
4693 | ||
4694 | static void | |
fba45db2 | 4695 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
4696 | { |
4697 | debug_target.to_terminal_ours_for_output (); | |
4698 | ||
96baa820 | 4699 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4700 | } |
4701 | ||
4702 | static void | |
fba45db2 | 4703 | debug_to_terminal_ours (void) |
c906108c SS |
4704 | { |
4705 | debug_target.to_terminal_ours (); | |
4706 | ||
96baa820 | 4707 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4708 | } |
4709 | ||
a790ad35 SC |
4710 | static void |
4711 | debug_to_terminal_save_ours (void) | |
4712 | { | |
4713 | debug_target.to_terminal_save_ours (); | |
4714 | ||
4715 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4716 | } | |
4717 | ||
c906108c | 4718 | static void |
503ebb2c | 4719 | debug_to_terminal_info (const char *arg, int from_tty) |
c906108c SS |
4720 | { |
4721 | debug_target.to_terminal_info (arg, from_tty); | |
4722 | ||
96baa820 | 4723 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4724 | from_tty); |
4725 | } | |
4726 | ||
c906108c | 4727 | static void |
fba45db2 | 4728 | debug_to_load (char *args, int from_tty) |
c906108c SS |
4729 | { |
4730 | debug_target.to_load (args, from_tty); | |
4731 | ||
96baa820 | 4732 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4733 | } |
4734 | ||
c906108c | 4735 | static void |
39f77062 | 4736 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 4737 | { |
39f77062 | 4738 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 4739 | |
96baa820 | 4740 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 4741 | PIDGET (ptid)); |
c906108c SS |
4742 | } |
4743 | ||
77b06cd7 | 4744 | static int |
fba45db2 | 4745 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 4746 | { |
77b06cd7 TJB |
4747 | int retval; |
4748 | ||
4749 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
4750 | ||
4751 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4752 | pid, retval); | |
c906108c | 4753 | |
77b06cd7 | 4754 | return retval; |
c906108c SS |
4755 | } |
4756 | ||
4757 | static int | |
fba45db2 | 4758 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 4759 | { |
c5aa993b | 4760 | int retval; |
c906108c SS |
4761 | |
4762 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
4763 | ||
96baa820 | 4764 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4765 | pid, retval); |
c906108c SS |
4766 | |
4767 | return retval; | |
4768 | } | |
4769 | ||
77b06cd7 | 4770 | static int |
fba45db2 | 4771 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 4772 | { |
77b06cd7 TJB |
4773 | int retval; |
4774 | ||
4775 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 4776 | |
77b06cd7 TJB |
4777 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4778 | pid, retval); | |
4779 | ||
4780 | return retval; | |
c906108c SS |
4781 | } |
4782 | ||
4783 | static int | |
fba45db2 | 4784 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 4785 | { |
c5aa993b | 4786 | int retval; |
c906108c SS |
4787 | |
4788 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
4789 | ||
96baa820 | 4790 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4791 | pid, retval); |
c906108c SS |
4792 | |
4793 | return retval; | |
4794 | } | |
4795 | ||
77b06cd7 | 4796 | static int |
fba45db2 | 4797 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 4798 | { |
77b06cd7 TJB |
4799 | int retval; |
4800 | ||
4801 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 4802 | |
77b06cd7 TJB |
4803 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4804 | pid, retval); | |
4805 | ||
4806 | return retval; | |
c906108c SS |
4807 | } |
4808 | ||
4809 | static int | |
fba45db2 | 4810 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 4811 | { |
c5aa993b | 4812 | int retval; |
c906108c SS |
4813 | |
4814 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
4815 | ||
96baa820 | 4816 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4817 | pid, retval); |
c906108c SS |
4818 | |
4819 | return retval; | |
4820 | } | |
4821 | ||
c906108c | 4822 | static int |
fba45db2 | 4823 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 4824 | { |
c5aa993b | 4825 | int has_exited; |
c906108c SS |
4826 | |
4827 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
4828 | ||
96baa820 | 4829 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4830 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4831 | |
4832 | return has_exited; | |
4833 | } | |
4834 | ||
c906108c | 4835 | static int |
fba45db2 | 4836 | debug_to_can_run (void) |
c906108c SS |
4837 | { |
4838 | int retval; | |
4839 | ||
4840 | retval = debug_target.to_can_run (); | |
4841 | ||
96baa820 | 4842 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4843 | |
4844 | return retval; | |
4845 | } | |
4846 | ||
c2250ad1 UW |
4847 | static struct gdbarch * |
4848 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4849 | { | |
4850 | struct gdbarch *retval; | |
4851 | ||
4852 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4853 | ||
3e43a32a MS |
4854 | fprintf_unfiltered (gdb_stdlog, |
4855 | "target_thread_architecture (%s) = %s [%s]\n", | |
4856 | target_pid_to_str (ptid), | |
4857 | host_address_to_string (retval), | |
c2250ad1 UW |
4858 | gdbarch_bfd_arch_info (retval)->printable_name); |
4859 | return retval; | |
4860 | } | |
4861 | ||
c906108c | 4862 | static void |
94cc34af | 4863 | debug_to_stop (ptid_t ptid) |
c906108c | 4864 | { |
94cc34af | 4865 | debug_target.to_stop (ptid); |
c906108c | 4866 | |
94cc34af PA |
4867 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4868 | target_pid_to_str (ptid)); | |
c906108c SS |
4869 | } |
4870 | ||
96baa820 JM |
4871 | static void |
4872 | debug_to_rcmd (char *command, | |
d9fcf2fb | 4873 | struct ui_file *outbuf) |
96baa820 JM |
4874 | { |
4875 | debug_target.to_rcmd (command, outbuf); | |
4876 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
4877 | } | |
4878 | ||
c906108c | 4879 | static char * |
fba45db2 | 4880 | debug_to_pid_to_exec_file (int pid) |
c906108c | 4881 | { |
c5aa993b | 4882 | char *exec_file; |
c906108c SS |
4883 | |
4884 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
4885 | ||
96baa820 | 4886 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4887 | pid, exec_file); |
c906108c SS |
4888 | |
4889 | return exec_file; | |
4890 | } | |
4891 | ||
c906108c | 4892 | static void |
fba45db2 | 4893 | setup_target_debug (void) |
c906108c SS |
4894 | { |
4895 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4896 | ||
4897 | current_target.to_open = debug_to_open; | |
c906108c | 4898 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4899 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4900 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4901 | current_target.to_files_info = debug_to_files_info; |
4902 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4903 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4904 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4905 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4906 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4907 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4908 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4909 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4910 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4911 | current_target.to_watchpoint_addr_within_range |
4912 | = debug_to_watchpoint_addr_within_range; | |
4913 | current_target.to_region_ok_for_hw_watchpoint | |
4914 | = debug_to_region_ok_for_hw_watchpoint; | |
4915 | current_target.to_can_accel_watchpoint_condition | |
4916 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4917 | current_target.to_terminal_init = debug_to_terminal_init; |
4918 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4919 | current_target.to_terminal_ours_for_output |
4920 | = debug_to_terminal_ours_for_output; | |
c906108c | 4921 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4922 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4923 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4924 | current_target.to_load = debug_to_load; |
c906108c | 4925 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4926 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4927 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4928 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4929 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4930 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4931 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4932 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4933 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4934 | current_target.to_stop = debug_to_stop; |
96baa820 | 4935 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4936 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4937 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4938 | } |
c906108c | 4939 | \f |
c5aa993b JM |
4940 | |
4941 | static char targ_desc[] = | |
3e43a32a MS |
4942 | "Names of targets and files being debugged.\nShows the entire \ |
4943 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4944 | core-file, and process, if any), as well as the symbol file name."; |
4945 | ||
96baa820 JM |
4946 | static void |
4947 | do_monitor_command (char *cmd, | |
4948 | int from_tty) | |
4949 | { | |
2b5fe715 AC |
4950 | if ((current_target.to_rcmd |
4951 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 4952 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
4953 | && (debug_target.to_rcmd |
4954 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 4955 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
4956 | target_rcmd (cmd, gdb_stdtarg); |
4957 | } | |
4958 | ||
87680a14 JB |
4959 | /* Print the name of each layers of our target stack. */ |
4960 | ||
4961 | static void | |
4962 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4963 | { | |
4964 | struct target_ops *t; | |
4965 | ||
4966 | printf_filtered (_("The current target stack is:\n")); | |
4967 | ||
4968 | for (t = target_stack; t != NULL; t = t->beneath) | |
4969 | { | |
4970 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4971 | } | |
4972 | } | |
4973 | ||
c6ebd6cf VP |
4974 | /* Controls if async mode is permitted. */ |
4975 | int target_async_permitted = 0; | |
4976 | ||
4977 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4978 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4979 | static int target_async_permitted_1 = 0; |
4980 | ||
4981 | static void | |
9401a810 PA |
4982 | set_target_async_command (char *args, int from_tty, |
4983 | struct cmd_list_element *c) | |
c6ebd6cf | 4984 | { |
c35b1492 | 4985 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4986 | { |
4987 | target_async_permitted_1 = target_async_permitted; | |
4988 | error (_("Cannot change this setting while the inferior is running.")); | |
4989 | } | |
4990 | ||
4991 | target_async_permitted = target_async_permitted_1; | |
4992 | } | |
4993 | ||
4994 | static void | |
9401a810 PA |
4995 | show_target_async_command (struct ui_file *file, int from_tty, |
4996 | struct cmd_list_element *c, | |
4997 | const char *value) | |
c6ebd6cf | 4998 | { |
3e43a32a MS |
4999 | fprintf_filtered (file, |
5000 | _("Controlling the inferior in " | |
5001 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5002 | } |
5003 | ||
d914c394 SS |
5004 | /* Temporary copies of permission settings. */ |
5005 | ||
5006 | static int may_write_registers_1 = 1; | |
5007 | static int may_write_memory_1 = 1; | |
5008 | static int may_insert_breakpoints_1 = 1; | |
5009 | static int may_insert_tracepoints_1 = 1; | |
5010 | static int may_insert_fast_tracepoints_1 = 1; | |
5011 | static int may_stop_1 = 1; | |
5012 | ||
5013 | /* Make the user-set values match the real values again. */ | |
5014 | ||
5015 | void | |
5016 | update_target_permissions (void) | |
5017 | { | |
5018 | may_write_registers_1 = may_write_registers; | |
5019 | may_write_memory_1 = may_write_memory; | |
5020 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5021 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5022 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5023 | may_stop_1 = may_stop; | |
5024 | } | |
5025 | ||
5026 | /* The one function handles (most of) the permission flags in the same | |
5027 | way. */ | |
5028 | ||
5029 | static void | |
5030 | set_target_permissions (char *args, int from_tty, | |
5031 | struct cmd_list_element *c) | |
5032 | { | |
5033 | if (target_has_execution) | |
5034 | { | |
5035 | update_target_permissions (); | |
5036 | error (_("Cannot change this setting while the inferior is running.")); | |
5037 | } | |
5038 | ||
5039 | /* Make the real values match the user-changed values. */ | |
5040 | may_write_registers = may_write_registers_1; | |
5041 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5042 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5043 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5044 | may_stop = may_stop_1; | |
5045 | update_observer_mode (); | |
5046 | } | |
5047 | ||
5048 | /* Set memory write permission independently of observer mode. */ | |
5049 | ||
5050 | static void | |
5051 | set_write_memory_permission (char *args, int from_tty, | |
5052 | struct cmd_list_element *c) | |
5053 | { | |
5054 | /* Make the real values match the user-changed values. */ | |
5055 | may_write_memory = may_write_memory_1; | |
5056 | update_observer_mode (); | |
5057 | } | |
5058 | ||
5059 | ||
c906108c | 5060 | void |
fba45db2 | 5061 | initialize_targets (void) |
c906108c SS |
5062 | { |
5063 | init_dummy_target (); | |
5064 | push_target (&dummy_target); | |
5065 | ||
5066 | add_info ("target", target_info, targ_desc); | |
5067 | add_info ("files", target_info, targ_desc); | |
5068 | ||
ccce17b0 | 5069 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5070 | Set target debugging."), _("\ |
5071 | Show target debugging."), _("\ | |
333dabeb DJ |
5072 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5073 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5074 | command."), |
ccce17b0 YQ |
5075 | NULL, |
5076 | show_targetdebug, | |
5077 | &setdebuglist, &showdebuglist); | |
3a11626d | 5078 | |
2bc416ba | 5079 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5080 | &trust_readonly, _("\ |
5081 | Set mode for reading from readonly sections."), _("\ | |
5082 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5083 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5084 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5085 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5086 | NULL, |
920d2a44 | 5087 | show_trust_readonly, |
e707bbc2 | 5088 | &setlist, &showlist); |
96baa820 JM |
5089 | |
5090 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5091 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5092 | |
87680a14 JB |
5093 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5094 | _("Print the name of each layer of the internal target stack."), | |
5095 | &maintenanceprintlist); | |
5096 | ||
c6ebd6cf VP |
5097 | add_setshow_boolean_cmd ("target-async", no_class, |
5098 | &target_async_permitted_1, _("\ | |
5099 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5100 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5101 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5102 | set_target_async_command, |
5103 | show_target_async_command, | |
c6ebd6cf VP |
5104 | &setlist, |
5105 | &showlist); | |
5106 | ||
4e5d721f | 5107 | add_setshow_boolean_cmd ("stack-cache", class_support, |
9cf1b572 | 5108 | &stack_cache_enabled_p_1, _("\ |
4e5d721f DE |
5109 | Set cache use for stack access."), _("\ |
5110 | Show cache use for stack access."), _("\ | |
5111 | When on, use the data cache for all stack access, regardless of any\n\ | |
5112 | configured memory regions. This improves remote performance significantly.\n\ | |
5113 | By default, caching for stack access is on."), | |
5114 | set_stack_cache_enabled_p, | |
5115 | show_stack_cache_enabled_p, | |
5116 | &setlist, &showlist); | |
5117 | ||
d914c394 SS |
5118 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5119 | &may_write_registers_1, _("\ | |
5120 | Set permission to write into registers."), _("\ | |
5121 | Show permission to write into registers."), _("\ | |
5122 | When this permission is on, GDB may write into the target's registers.\n\ | |
5123 | Otherwise, any sort of write attempt will result in an error."), | |
5124 | set_target_permissions, NULL, | |
5125 | &setlist, &showlist); | |
5126 | ||
5127 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5128 | &may_write_memory_1, _("\ | |
5129 | Set permission to write into target memory."), _("\ | |
5130 | Show permission to write into target memory."), _("\ | |
5131 | When this permission is on, GDB may write into the target's memory.\n\ | |
5132 | Otherwise, any sort of write attempt will result in an error."), | |
5133 | set_write_memory_permission, NULL, | |
5134 | &setlist, &showlist); | |
5135 | ||
5136 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5137 | &may_insert_breakpoints_1, _("\ | |
5138 | Set permission to insert breakpoints in the target."), _("\ | |
5139 | Show permission to insert breakpoints in the target."), _("\ | |
5140 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5141 | Otherwise, any sort of insertion attempt will result in an error."), | |
5142 | set_target_permissions, NULL, | |
5143 | &setlist, &showlist); | |
5144 | ||
5145 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5146 | &may_insert_tracepoints_1, _("\ | |
5147 | Set permission to insert tracepoints in the target."), _("\ | |
5148 | Show permission to insert tracepoints in the target."), _("\ | |
5149 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5150 | Otherwise, any sort of insertion attempt will result in an error."), | |
5151 | set_target_permissions, NULL, | |
5152 | &setlist, &showlist); | |
5153 | ||
5154 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5155 | &may_insert_fast_tracepoints_1, _("\ | |
5156 | Set permission to insert fast tracepoints in the target."), _("\ | |
5157 | Show permission to insert fast tracepoints in the target."), _("\ | |
5158 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5159 | Otherwise, any sort of insertion attempt will result in an error."), | |
5160 | set_target_permissions, NULL, | |
5161 | &setlist, &showlist); | |
5162 | ||
5163 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5164 | &may_stop_1, _("\ | |
5165 | Set permission to interrupt or signal the target."), _("\ | |
5166 | Show permission to interrupt or signal the target."), _("\ | |
5167 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5168 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5169 | set_target_permissions, NULL, | |
5170 | &setlist, &showlist); | |
5171 | ||
5172 | ||
8add0441 | 5173 | target_dcache = dcache_init (); |
c906108c | 5174 | } |