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> | |
0e9f083f | 24 | #include <string.h> |
c906108c | 25 | #include "target.h" |
68c765e2 | 26 | #include "target-dcache.h" |
c906108c SS |
27 | #include "gdbcmd.h" |
28 | #include "symtab.h" | |
29 | #include "inferior.h" | |
30 | #include "bfd.h" | |
31 | #include "symfile.h" | |
32 | #include "objfiles.h" | |
4930751a | 33 | #include "dcache.h" |
c906108c | 34 | #include <signal.h> |
4e052eda | 35 | #include "regcache.h" |
0088c768 | 36 | #include "gdb_assert.h" |
b6591e8b | 37 | #include "gdbcore.h" |
9e35dae4 | 38 | #include "exceptions.h" |
424163ea | 39 | #include "target-descriptions.h" |
e1ac3328 | 40 | #include "gdbthread.h" |
b9db4ced | 41 | #include "solib.h" |
07b82ea5 | 42 | #include "exec.h" |
edb3359d | 43 | #include "inline-frame.h" |
2f4d8875 | 44 | #include "tracepoint.h" |
7313baad | 45 | #include "gdb/fileio.h" |
8ffcbaaf | 46 | #include "agent.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
503ebb2c | 50 | static void default_terminal_info (const char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
e0d24f8d WZ |
55 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
56 | ||
c25c4a8b | 57 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 58 | |
a14ed312 | 59 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 60 | |
a14ed312 | 61 | static int return_zero (void); |
c906108c | 62 | |
a14ed312 | 63 | static int return_one (void); |
c906108c | 64 | |
ccaa32c7 GS |
65 | static int return_minus_one (void); |
66 | ||
a14ed312 | 67 | void target_ignore (void); |
c906108c | 68 | |
a14ed312 | 69 | static void target_command (char *, int); |
c906108c | 70 | |
a14ed312 | 71 | static struct target_ops *find_default_run_target (char *); |
c906108c | 72 | |
4b8a223f | 73 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 74 | enum target_object object, |
1b0ba102 AC |
75 | const char *annex, gdb_byte *readbuf, |
76 | const gdb_byte *writebuf, | |
8aa91c1e | 77 | ULONGEST offset, LONGEST len); |
0088c768 | 78 | |
cf7a04e8 DJ |
79 | static LONGEST current_xfer_partial (struct target_ops *ops, |
80 | enum target_object object, | |
81 | const char *annex, gdb_byte *readbuf, | |
82 | const gdb_byte *writebuf, | |
83 | ULONGEST offset, LONGEST len); | |
c906108c | 84 | |
c2250ad1 UW |
85 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
86 | ptid_t ptid); | |
87 | ||
a14ed312 | 88 | static void init_dummy_target (void); |
c906108c | 89 | |
aa869812 AC |
90 | static struct target_ops debug_target; |
91 | ||
a14ed312 | 92 | static void debug_to_open (char *, int); |
c906108c | 93 | |
316f2060 | 94 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 95 | |
a14ed312 | 96 | static void debug_to_files_info (struct target_ops *); |
c906108c | 97 | |
a6d9a66e UW |
98 | static int debug_to_insert_breakpoint (struct gdbarch *, |
99 | struct bp_target_info *); | |
c906108c | 100 | |
a6d9a66e UW |
101 | static int debug_to_remove_breakpoint (struct gdbarch *, |
102 | struct bp_target_info *); | |
c906108c | 103 | |
ccaa32c7 GS |
104 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
105 | ||
a6d9a66e UW |
106 | static int debug_to_insert_hw_breakpoint (struct gdbarch *, |
107 | struct bp_target_info *); | |
ccaa32c7 | 108 | |
a6d9a66e UW |
109 | static int debug_to_remove_hw_breakpoint (struct gdbarch *, |
110 | struct bp_target_info *); | |
ccaa32c7 | 111 | |
0cf6dd15 TJB |
112 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int, |
113 | struct expression *); | |
ccaa32c7 | 114 | |
0cf6dd15 TJB |
115 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int, |
116 | struct expression *); | |
ccaa32c7 GS |
117 | |
118 | static int debug_to_stopped_by_watchpoint (void); | |
119 | ||
4aa7a7f5 | 120 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 121 | |
5009afc5 AS |
122 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
123 | CORE_ADDR, CORE_ADDR, int); | |
124 | ||
e0d24f8d WZ |
125 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
126 | ||
0cf6dd15 TJB |
127 | static int debug_to_can_accel_watchpoint_condition (CORE_ADDR, int, int, |
128 | struct expression *); | |
129 | ||
a14ed312 | 130 | static void debug_to_terminal_init (void); |
c906108c | 131 | |
a14ed312 | 132 | static void debug_to_terminal_inferior (void); |
c906108c | 133 | |
a14ed312 | 134 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 135 | |
a790ad35 SC |
136 | static void debug_to_terminal_save_ours (void); |
137 | ||
a14ed312 | 138 | static void debug_to_terminal_ours (void); |
c906108c | 139 | |
a14ed312 | 140 | static void debug_to_load (char *, int); |
c906108c | 141 | |
a14ed312 | 142 | static int debug_to_can_run (void); |
c906108c | 143 | |
94cc34af | 144 | static void debug_to_stop (ptid_t); |
c906108c | 145 | |
c906108c | 146 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 147 | array; the current index into the array; the allocated size of the |
c906108c SS |
148 | array. */ |
149 | struct target_ops **target_structs; | |
150 | unsigned target_struct_size; | |
c906108c SS |
151 | unsigned target_struct_allocsize; |
152 | #define DEFAULT_ALLOCSIZE 10 | |
153 | ||
154 | /* The initial current target, so that there is always a semi-valid | |
155 | current target. */ | |
156 | ||
157 | static struct target_ops dummy_target; | |
158 | ||
159 | /* Top of target stack. */ | |
160 | ||
258b763a | 161 | static struct target_ops *target_stack; |
c906108c SS |
162 | |
163 | /* The target structure we are currently using to talk to a process | |
164 | or file or whatever "inferior" we have. */ | |
165 | ||
166 | struct target_ops current_target; | |
167 | ||
168 | /* Command list for target. */ | |
169 | ||
170 | static struct cmd_list_element *targetlist = NULL; | |
171 | ||
cf7a04e8 DJ |
172 | /* Nonzero if we should trust readonly sections from the |
173 | executable when reading memory. */ | |
174 | ||
175 | static int trust_readonly = 0; | |
176 | ||
8defab1a DJ |
177 | /* Nonzero if we should show true memory content including |
178 | memory breakpoint inserted by gdb. */ | |
179 | ||
180 | static int show_memory_breakpoints = 0; | |
181 | ||
d914c394 SS |
182 | /* These globals control whether GDB attempts to perform these |
183 | operations; they are useful for targets that need to prevent | |
184 | inadvertant disruption, such as in non-stop mode. */ | |
185 | ||
186 | int may_write_registers = 1; | |
187 | ||
188 | int may_write_memory = 1; | |
189 | ||
190 | int may_insert_breakpoints = 1; | |
191 | ||
192 | int may_insert_tracepoints = 1; | |
193 | ||
194 | int may_insert_fast_tracepoints = 1; | |
195 | ||
196 | int may_stop = 1; | |
197 | ||
c906108c SS |
198 | /* Non-zero if we want to see trace of target level stuff. */ |
199 | ||
ccce17b0 | 200 | static unsigned int targetdebug = 0; |
920d2a44 AC |
201 | static void |
202 | show_targetdebug (struct ui_file *file, int from_tty, | |
203 | struct cmd_list_element *c, const char *value) | |
204 | { | |
205 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
206 | } | |
c906108c | 207 | |
a14ed312 | 208 | static void setup_target_debug (void); |
c906108c | 209 | |
c906108c SS |
210 | /* The user just typed 'target' without the name of a target. */ |
211 | ||
c906108c | 212 | static void |
fba45db2 | 213 | target_command (char *arg, int from_tty) |
c906108c SS |
214 | { |
215 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
216 | gdb_stdout); | |
217 | } | |
218 | ||
c35b1492 PA |
219 | /* Default target_has_* methods for process_stratum targets. */ |
220 | ||
221 | int | |
222 | default_child_has_all_memory (struct target_ops *ops) | |
223 | { | |
224 | /* If no inferior selected, then we can't read memory here. */ | |
225 | if (ptid_equal (inferior_ptid, null_ptid)) | |
226 | return 0; | |
227 | ||
228 | return 1; | |
229 | } | |
230 | ||
231 | int | |
232 | default_child_has_memory (struct target_ops *ops) | |
233 | { | |
234 | /* If no inferior selected, then we can't read memory here. */ | |
235 | if (ptid_equal (inferior_ptid, null_ptid)) | |
236 | return 0; | |
237 | ||
238 | return 1; | |
239 | } | |
240 | ||
241 | int | |
242 | default_child_has_stack (struct target_ops *ops) | |
243 | { | |
244 | /* If no inferior selected, there's no stack. */ | |
245 | if (ptid_equal (inferior_ptid, null_ptid)) | |
246 | return 0; | |
247 | ||
248 | return 1; | |
249 | } | |
250 | ||
251 | int | |
252 | default_child_has_registers (struct target_ops *ops) | |
253 | { | |
254 | /* Can't read registers from no inferior. */ | |
255 | if (ptid_equal (inferior_ptid, null_ptid)) | |
256 | return 0; | |
257 | ||
258 | return 1; | |
259 | } | |
260 | ||
261 | int | |
aeaec162 | 262 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
263 | { |
264 | /* If there's no thread selected, then we can't make it run through | |
265 | hoops. */ | |
aeaec162 | 266 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
267 | return 0; |
268 | ||
269 | return 1; | |
270 | } | |
271 | ||
272 | ||
273 | int | |
274 | target_has_all_memory_1 (void) | |
275 | { | |
276 | struct target_ops *t; | |
277 | ||
278 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
279 | if (t->to_has_all_memory (t)) | |
280 | return 1; | |
281 | ||
282 | return 0; | |
283 | } | |
284 | ||
285 | int | |
286 | target_has_memory_1 (void) | |
287 | { | |
288 | struct target_ops *t; | |
289 | ||
290 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
291 | if (t->to_has_memory (t)) | |
292 | return 1; | |
293 | ||
294 | return 0; | |
295 | } | |
296 | ||
297 | int | |
298 | target_has_stack_1 (void) | |
299 | { | |
300 | struct target_ops *t; | |
301 | ||
302 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
303 | if (t->to_has_stack (t)) | |
304 | return 1; | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | int | |
310 | target_has_registers_1 (void) | |
311 | { | |
312 | struct target_ops *t; | |
313 | ||
314 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
315 | if (t->to_has_registers (t)) | |
316 | return 1; | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
321 | int | |
aeaec162 | 322 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
323 | { |
324 | struct target_ops *t; | |
325 | ||
326 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 327 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
328 | return 1; |
329 | ||
330 | return 0; | |
331 | } | |
332 | ||
aeaec162 TT |
333 | int |
334 | target_has_execution_current (void) | |
335 | { | |
336 | return target_has_execution_1 (inferior_ptid); | |
337 | } | |
338 | ||
c22a2b88 TT |
339 | /* Complete initialization of T. This ensures that various fields in |
340 | T are set, if needed by the target implementation. */ | |
c906108c SS |
341 | |
342 | void | |
c22a2b88 | 343 | complete_target_initialization (struct target_ops *t) |
c906108c | 344 | { |
0088c768 | 345 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
346 | if (t->to_xfer_partial == NULL) |
347 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 348 | |
c35b1492 PA |
349 | if (t->to_has_all_memory == NULL) |
350 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
351 | ||
352 | if (t->to_has_memory == NULL) | |
353 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
354 | ||
355 | if (t->to_has_stack == NULL) | |
356 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
357 | ||
358 | if (t->to_has_registers == NULL) | |
359 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
360 | ||
361 | if (t->to_has_execution == NULL) | |
aeaec162 | 362 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
c22a2b88 TT |
363 | } |
364 | ||
365 | /* Add possible target architecture T to the list and add a new | |
366 | command 'target T->to_shortname'. Set COMPLETER as the command's | |
367 | completer if not NULL. */ | |
368 | ||
369 | void | |
370 | add_target_with_completer (struct target_ops *t, | |
371 | completer_ftype *completer) | |
372 | { | |
373 | struct cmd_list_element *c; | |
374 | ||
375 | complete_target_initialization (t); | |
c35b1492 | 376 | |
c906108c SS |
377 | if (!target_structs) |
378 | { | |
379 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
380 | target_structs = (struct target_ops **) xmalloc | |
381 | (target_struct_allocsize * sizeof (*target_structs)); | |
382 | } | |
383 | if (target_struct_size >= target_struct_allocsize) | |
384 | { | |
385 | target_struct_allocsize *= 2; | |
386 | target_structs = (struct target_ops **) | |
c5aa993b JM |
387 | xrealloc ((char *) target_structs, |
388 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
389 | } |
390 | target_structs[target_struct_size++] = t; | |
c906108c SS |
391 | |
392 | if (targetlist == NULL) | |
1bedd215 AC |
393 | add_prefix_cmd ("target", class_run, target_command, _("\ |
394 | Connect to a target machine or process.\n\ | |
c906108c SS |
395 | The first argument is the type or protocol of the target machine.\n\ |
396 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
397 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 398 | `help target ' followed by the protocol name."), |
c906108c | 399 | &targetlist, "target ", 0, &cmdlist); |
9852c492 YQ |
400 | c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, |
401 | &targetlist); | |
402 | if (completer != NULL) | |
403 | set_cmd_completer (c, completer); | |
404 | } | |
405 | ||
406 | /* Add a possible target architecture to the list. */ | |
407 | ||
408 | void | |
409 | add_target (struct target_ops *t) | |
410 | { | |
411 | add_target_with_completer (t, NULL); | |
c906108c SS |
412 | } |
413 | ||
b48d48eb MM |
414 | /* See target.h. */ |
415 | ||
416 | void | |
417 | add_deprecated_target_alias (struct target_ops *t, char *alias) | |
418 | { | |
419 | struct cmd_list_element *c; | |
420 | char *alt; | |
421 | ||
422 | /* If we use add_alias_cmd, here, we do not get the deprecated warning, | |
423 | see PR cli/15104. */ | |
424 | c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist); | |
425 | alt = xstrprintf ("target %s", t->to_shortname); | |
426 | deprecate_cmd (c, alt); | |
427 | } | |
428 | ||
c906108c SS |
429 | /* Stub functions */ |
430 | ||
431 | void | |
fba45db2 | 432 | target_ignore (void) |
c906108c SS |
433 | { |
434 | } | |
435 | ||
7d85a9c0 JB |
436 | void |
437 | target_kill (void) | |
438 | { | |
439 | struct target_ops *t; | |
440 | ||
441 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
442 | if (t->to_kill != NULL) | |
443 | { | |
444 | if (targetdebug) | |
445 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
446 | ||
447 | t->to_kill (t); | |
448 | return; | |
449 | } | |
450 | ||
451 | noprocess (); | |
452 | } | |
453 | ||
11cf8741 JM |
454 | void |
455 | target_load (char *arg, int from_tty) | |
456 | { | |
4e5d721f | 457 | target_dcache_invalidate (); |
11cf8741 JM |
458 | (*current_target.to_load) (arg, from_tty); |
459 | } | |
460 | ||
947b8855 PA |
461 | void |
462 | target_create_inferior (char *exec_file, char *args, | |
463 | char **env, int from_tty) | |
136d6dae VP |
464 | { |
465 | struct target_ops *t; | |
5d502164 | 466 | |
136d6dae VP |
467 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
468 | { | |
469 | if (t->to_create_inferior != NULL) | |
470 | { | |
471 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
472 | if (targetdebug) |
473 | fprintf_unfiltered (gdb_stdlog, | |
474 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
475 | exec_file, args, from_tty); | |
136d6dae VP |
476 | return; |
477 | } | |
478 | } | |
479 | ||
480 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 481 | _("could not find a target to create inferior")); |
136d6dae VP |
482 | } |
483 | ||
d9d2d8b6 PA |
484 | void |
485 | target_terminal_inferior (void) | |
486 | { | |
487 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 488 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
489 | this point the target is not async yet. However, if sync_execution |
490 | is not set, we know it will become async prior to resume. */ | |
491 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
492 | return; |
493 | ||
494 | /* If GDB is resuming the inferior in the foreground, install | |
495 | inferior's terminal modes. */ | |
496 | (*current_target.to_terminal_inferior) (); | |
497 | } | |
136d6dae | 498 | |
c906108c | 499 | static int |
fba45db2 KB |
500 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
501 | struct target_ops *t) | |
c906108c | 502 | { |
c378eb4e MS |
503 | errno = EIO; /* Can't read/write this location. */ |
504 | return 0; /* No bytes handled. */ | |
c906108c SS |
505 | } |
506 | ||
507 | static void | |
fba45db2 | 508 | tcomplain (void) |
c906108c | 509 | { |
8a3fe4f8 | 510 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
511 | current_target.to_shortname); |
512 | } | |
513 | ||
514 | void | |
fba45db2 | 515 | noprocess (void) |
c906108c | 516 | { |
8a3fe4f8 | 517 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
518 | } |
519 | ||
c906108c | 520 | static void |
503ebb2c | 521 | default_terminal_info (const char *args, int from_tty) |
c906108c | 522 | { |
a3f17187 | 523 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
524 | } |
525 | ||
0ef643c8 JB |
526 | /* A default implementation for the to_get_ada_task_ptid target method. |
527 | ||
528 | This function builds the PTID by using both LWP and TID as part of | |
529 | the PTID lwp and tid elements. The pid used is the pid of the | |
530 | inferior_ptid. */ | |
531 | ||
2c0b251b | 532 | static ptid_t |
0ef643c8 JB |
533 | default_get_ada_task_ptid (long lwp, long tid) |
534 | { | |
535 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
536 | } | |
537 | ||
32231432 PA |
538 | static enum exec_direction_kind |
539 | default_execution_direction (void) | |
540 | { | |
541 | if (!target_can_execute_reverse) | |
542 | return EXEC_FORWARD; | |
543 | else if (!target_can_async_p ()) | |
544 | return EXEC_FORWARD; | |
545 | else | |
546 | gdb_assert_not_reached ("\ | |
547 | to_execution_direction must be implemented for reverse async"); | |
548 | } | |
549 | ||
7998dfc3 AC |
550 | /* Go through the target stack from top to bottom, copying over zero |
551 | entries in current_target, then filling in still empty entries. In | |
552 | effect, we are doing class inheritance through the pushed target | |
553 | vectors. | |
554 | ||
555 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
556 | is currently implemented, is that it discards any knowledge of | |
557 | which target an inherited method originally belonged to. | |
558 | Consequently, new new target methods should instead explicitly and | |
559 | locally search the target stack for the target that can handle the | |
560 | request. */ | |
c906108c SS |
561 | |
562 | static void | |
7998dfc3 | 563 | update_current_target (void) |
c906108c | 564 | { |
7998dfc3 AC |
565 | struct target_ops *t; |
566 | ||
08d8bcd7 | 567 | /* First, reset current's contents. */ |
7998dfc3 AC |
568 | memset (¤t_target, 0, sizeof (current_target)); |
569 | ||
570 | #define INHERIT(FIELD, TARGET) \ | |
571 | if (!current_target.FIELD) \ | |
572 | current_target.FIELD = (TARGET)->FIELD | |
573 | ||
574 | for (t = target_stack; t; t = t->beneath) | |
575 | { | |
576 | INHERIT (to_shortname, t); | |
577 | INHERIT (to_longname, t); | |
578 | INHERIT (to_doc, t); | |
b52323fa UW |
579 | /* Do not inherit to_open. */ |
580 | /* Do not inherit to_close. */ | |
136d6dae | 581 | /* Do not inherit to_attach. */ |
7998dfc3 | 582 | INHERIT (to_post_attach, t); |
dc177b7a | 583 | INHERIT (to_attach_no_wait, t); |
136d6dae | 584 | /* Do not inherit to_detach. */ |
597320e7 | 585 | /* Do not inherit to_disconnect. */ |
28439f5e | 586 | /* Do not inherit to_resume. */ |
117de6a9 | 587 | /* Do not inherit to_wait. */ |
28439f5e PA |
588 | /* Do not inherit to_fetch_registers. */ |
589 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 590 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 591 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
592 | INHERIT (to_files_info, t); |
593 | INHERIT (to_insert_breakpoint, t); | |
594 | INHERIT (to_remove_breakpoint, t); | |
595 | INHERIT (to_can_use_hw_breakpoint, t); | |
596 | INHERIT (to_insert_hw_breakpoint, t); | |
597 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 598 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
599 | INHERIT (to_insert_watchpoint, t); |
600 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
601 | /* Do not inherit to_insert_mask_watchpoint. */ |
602 | /* Do not inherit to_remove_mask_watchpoint. */ | |
7998dfc3 | 603 | INHERIT (to_stopped_data_address, t); |
74174d2e | 604 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 605 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
606 | INHERIT (to_stopped_by_watchpoint, t); |
607 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 608 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 609 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 610 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
611 | INHERIT (to_terminal_init, t); |
612 | INHERIT (to_terminal_inferior, t); | |
613 | INHERIT (to_terminal_ours_for_output, t); | |
614 | INHERIT (to_terminal_ours, t); | |
615 | INHERIT (to_terminal_save_ours, t); | |
616 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 617 | /* Do not inherit to_kill. */ |
7998dfc3 | 618 | INHERIT (to_load, t); |
136d6dae | 619 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 620 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
621 | INHERIT (to_insert_fork_catchpoint, t); |
622 | INHERIT (to_remove_fork_catchpoint, t); | |
623 | INHERIT (to_insert_vfork_catchpoint, t); | |
624 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 625 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
626 | INHERIT (to_insert_exec_catchpoint, t); |
627 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 628 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 629 | INHERIT (to_has_exited, t); |
82892036 | 630 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 631 | INHERIT (to_can_run, t); |
2455069d | 632 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 633 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
634 | /* Do not inherit to_thread_alive. */ |
635 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 636 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 637 | INHERIT (to_extra_thread_info, t); |
4694da01 | 638 | INHERIT (to_thread_name, t); |
7998dfc3 | 639 | INHERIT (to_stop, t); |
4b8a223f | 640 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 641 | INHERIT (to_rcmd, t); |
7998dfc3 | 642 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 643 | INHERIT (to_log_command, t); |
7998dfc3 | 644 | INHERIT (to_stratum, t); |
c378eb4e MS |
645 | /* Do not inherit to_has_all_memory. */ |
646 | /* Do not inherit to_has_memory. */ | |
647 | /* Do not inherit to_has_stack. */ | |
648 | /* Do not inherit to_has_registers. */ | |
649 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 650 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
651 | INHERIT (to_can_async_p, t); |
652 | INHERIT (to_is_async_p, t); | |
653 | INHERIT (to_async, t); | |
7998dfc3 AC |
654 | INHERIT (to_find_memory_regions, t); |
655 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
656 | INHERIT (to_get_bookmark, t); |
657 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 658 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 659 | INHERIT (to_can_execute_reverse, t); |
32231432 | 660 | INHERIT (to_execution_direction, t); |
c2250ad1 | 661 | INHERIT (to_thread_architecture, t); |
424163ea | 662 | /* Do not inherit to_read_description. */ |
0ef643c8 | 663 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 664 | /* Do not inherit to_search_memory. */ |
8a305172 | 665 | INHERIT (to_supports_multi_process, t); |
d248b706 | 666 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 667 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
668 | INHERIT (to_trace_init, t); |
669 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 670 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 671 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
672 | INHERIT (to_enable_tracepoint, t); |
673 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
674 | INHERIT (to_trace_set_readonly_regions, t); |
675 | INHERIT (to_trace_start, t); | |
676 | INHERIT (to_get_trace_status, t); | |
f196051f | 677 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
678 | INHERIT (to_trace_stop, t); |
679 | INHERIT (to_trace_find, t); | |
680 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
681 | INHERIT (to_save_trace_data, t); |
682 | INHERIT (to_upload_tracepoints, t); | |
683 | INHERIT (to_upload_trace_state_variables, t); | |
684 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 685 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 686 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 687 | INHERIT (to_set_circular_trace_buffer, t); |
f6f899bf | 688 | INHERIT (to_set_trace_buffer_size, t); |
f196051f | 689 | INHERIT (to_set_trace_notes, t); |
711e434b | 690 | INHERIT (to_get_tib_address, t); |
d914c394 | 691 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
692 | INHERIT (to_static_tracepoint_marker_at, t); |
693 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 694 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
695 | INHERIT (to_use_agent, t); |
696 | INHERIT (to_can_use_agent, t); | |
ced63ec0 | 697 | INHERIT (to_augmented_libraries_svr4_read, t); |
7998dfc3 | 698 | INHERIT (to_magic, t); |
b775012e | 699 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
d3ce09f5 | 700 | INHERIT (to_can_run_breakpoint_commands, t); |
fd79ecee | 701 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
702 | /* Do not inherit to_flash_erase. */ |
703 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
704 | } |
705 | #undef INHERIT | |
706 | ||
707 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
708 | it. Some entries are defaulted to a method that print an error, |
709 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
710 | |
711 | #define de_fault(field, value) \ | |
7998dfc3 AC |
712 | if (!current_target.field) \ |
713 | current_target.field = value | |
0d06e24b | 714 | |
2bc416ba DJ |
715 | de_fault (to_open, |
716 | (void (*) (char *, int)) | |
0d06e24b | 717 | tcomplain); |
2bc416ba | 718 | de_fault (to_close, |
460014f5 | 719 | (void (*) (void)) |
0d06e24b | 720 | target_ignore); |
2bc416ba DJ |
721 | de_fault (to_post_attach, |
722 | (void (*) (int)) | |
0d06e24b | 723 | target_ignore); |
2bc416ba | 724 | de_fault (to_prepare_to_store, |
316f2060 | 725 | (void (*) (struct regcache *)) |
0d06e24b | 726 | noprocess); |
2bc416ba | 727 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
728 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
729 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 730 | nomemory); |
2bc416ba DJ |
731 | de_fault (to_files_info, |
732 | (void (*) (struct target_ops *)) | |
0d06e24b | 733 | target_ignore); |
2bc416ba | 734 | de_fault (to_insert_breakpoint, |
0d06e24b | 735 | memory_insert_breakpoint); |
2bc416ba | 736 | de_fault (to_remove_breakpoint, |
0d06e24b | 737 | memory_remove_breakpoint); |
ccaa32c7 GS |
738 | de_fault (to_can_use_hw_breakpoint, |
739 | (int (*) (int, int, int)) | |
740 | return_zero); | |
741 | de_fault (to_insert_hw_breakpoint, | |
a6d9a66e | 742 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
743 | return_minus_one); |
744 | de_fault (to_remove_hw_breakpoint, | |
a6d9a66e | 745 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
746 | return_minus_one); |
747 | de_fault (to_insert_watchpoint, | |
0cf6dd15 | 748 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
749 | return_minus_one); |
750 | de_fault (to_remove_watchpoint, | |
0cf6dd15 | 751 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
752 | return_minus_one); |
753 | de_fault (to_stopped_by_watchpoint, | |
754 | (int (*) (void)) | |
755 | return_zero); | |
756 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 757 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 758 | return_zero); |
5009afc5 AS |
759 | de_fault (to_watchpoint_addr_within_range, |
760 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
761 | de_fault (to_region_ok_for_hw_watchpoint, |
762 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 TJB |
763 | de_fault (to_can_accel_watchpoint_condition, |
764 | (int (*) (CORE_ADDR, int, int, struct expression *)) | |
765 | return_zero); | |
2bc416ba DJ |
766 | de_fault (to_terminal_init, |
767 | (void (*) (void)) | |
0d06e24b | 768 | target_ignore); |
2bc416ba DJ |
769 | de_fault (to_terminal_inferior, |
770 | (void (*) (void)) | |
0d06e24b | 771 | target_ignore); |
2bc416ba DJ |
772 | de_fault (to_terminal_ours_for_output, |
773 | (void (*) (void)) | |
0d06e24b | 774 | target_ignore); |
2bc416ba DJ |
775 | de_fault (to_terminal_ours, |
776 | (void (*) (void)) | |
0d06e24b | 777 | target_ignore); |
2bc416ba DJ |
778 | de_fault (to_terminal_save_ours, |
779 | (void (*) (void)) | |
a790ad35 | 780 | target_ignore); |
2bc416ba | 781 | de_fault (to_terminal_info, |
0d06e24b | 782 | default_terminal_info); |
2bc416ba DJ |
783 | de_fault (to_load, |
784 | (void (*) (char *, int)) | |
0d06e24b | 785 | tcomplain); |
2bc416ba DJ |
786 | de_fault (to_post_startup_inferior, |
787 | (void (*) (ptid_t)) | |
0d06e24b | 788 | target_ignore); |
2bc416ba | 789 | de_fault (to_insert_fork_catchpoint, |
77b06cd7 TJB |
790 | (int (*) (int)) |
791 | return_one); | |
2bc416ba DJ |
792 | de_fault (to_remove_fork_catchpoint, |
793 | (int (*) (int)) | |
77b06cd7 | 794 | return_one); |
2bc416ba | 795 | de_fault (to_insert_vfork_catchpoint, |
77b06cd7 TJB |
796 | (int (*) (int)) |
797 | return_one); | |
2bc416ba DJ |
798 | de_fault (to_remove_vfork_catchpoint, |
799 | (int (*) (int)) | |
77b06cd7 | 800 | return_one); |
2bc416ba | 801 | de_fault (to_insert_exec_catchpoint, |
77b06cd7 TJB |
802 | (int (*) (int)) |
803 | return_one); | |
2bc416ba DJ |
804 | de_fault (to_remove_exec_catchpoint, |
805 | (int (*) (int)) | |
77b06cd7 | 806 | return_one); |
a96d9b2e SDJ |
807 | de_fault (to_set_syscall_catchpoint, |
808 | (int (*) (int, int, int, int, int *)) | |
77b06cd7 | 809 | return_one); |
2bc416ba DJ |
810 | de_fault (to_has_exited, |
811 | (int (*) (int, int, int *)) | |
0d06e24b | 812 | return_zero); |
2bc416ba | 813 | de_fault (to_can_run, |
0d06e24b | 814 | return_zero); |
2bc416ba DJ |
815 | de_fault (to_extra_thread_info, |
816 | (char *(*) (struct thread_info *)) | |
0d06e24b | 817 | return_zero); |
4694da01 TT |
818 | de_fault (to_thread_name, |
819 | (char *(*) (struct thread_info *)) | |
820 | return_zero); | |
2bc416ba | 821 | de_fault (to_stop, |
94cc34af | 822 | (void (*) (ptid_t)) |
0d06e24b | 823 | target_ignore); |
cf7a04e8 | 824 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
825 | de_fault (to_rcmd, |
826 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 827 | tcomplain); |
2bc416ba DJ |
828 | de_fault (to_pid_to_exec_file, |
829 | (char *(*) (int)) | |
0d06e24b | 830 | return_zero); |
2bc416ba DJ |
831 | de_fault (to_async, |
832 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 833 | tcomplain); |
c2250ad1 UW |
834 | de_fault (to_thread_architecture, |
835 | default_thread_architecture); | |
424163ea | 836 | current_target.to_read_description = NULL; |
0ef643c8 JB |
837 | de_fault (to_get_ada_task_ptid, |
838 | (ptid_t (*) (long, long)) | |
839 | default_get_ada_task_ptid); | |
8a305172 PA |
840 | de_fault (to_supports_multi_process, |
841 | (int (*) (void)) | |
842 | return_zero); | |
d248b706 KY |
843 | de_fault (to_supports_enable_disable_tracepoint, |
844 | (int (*) (void)) | |
845 | return_zero); | |
3065dfb6 SS |
846 | de_fault (to_supports_string_tracing, |
847 | (int (*) (void)) | |
848 | return_zero); | |
35b1e5cc SS |
849 | de_fault (to_trace_init, |
850 | (void (*) (void)) | |
851 | tcomplain); | |
852 | de_fault (to_download_tracepoint, | |
e8ba3115 | 853 | (void (*) (struct bp_location *)) |
35b1e5cc | 854 | tcomplain); |
1e4d1764 YQ |
855 | de_fault (to_can_download_tracepoint, |
856 | (int (*) (void)) | |
857 | return_zero); | |
35b1e5cc SS |
858 | de_fault (to_download_trace_state_variable, |
859 | (void (*) (struct trace_state_variable *)) | |
860 | tcomplain); | |
d248b706 KY |
861 | de_fault (to_enable_tracepoint, |
862 | (void (*) (struct bp_location *)) | |
863 | tcomplain); | |
864 | de_fault (to_disable_tracepoint, | |
865 | (void (*) (struct bp_location *)) | |
866 | tcomplain); | |
35b1e5cc SS |
867 | de_fault (to_trace_set_readonly_regions, |
868 | (void (*) (void)) | |
869 | tcomplain); | |
870 | de_fault (to_trace_start, | |
871 | (void (*) (void)) | |
872 | tcomplain); | |
873 | de_fault (to_get_trace_status, | |
00bf0b85 | 874 | (int (*) (struct trace_status *)) |
35b1e5cc | 875 | return_minus_one); |
f196051f SS |
876 | de_fault (to_get_tracepoint_status, |
877 | (void (*) (struct breakpoint *, struct uploaded_tp *)) | |
878 | tcomplain); | |
35b1e5cc SS |
879 | de_fault (to_trace_stop, |
880 | (void (*) (void)) | |
881 | tcomplain); | |
882 | de_fault (to_trace_find, | |
cc5925ad | 883 | (int (*) (enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *)) |
4136fdd2 | 884 | return_minus_one); |
35b1e5cc SS |
885 | de_fault (to_get_trace_state_variable_value, |
886 | (int (*) (int, LONGEST *)) | |
887 | return_zero); | |
00bf0b85 | 888 | de_fault (to_save_trace_data, |
011aacb0 | 889 | (int (*) (const char *)) |
00bf0b85 SS |
890 | tcomplain); |
891 | de_fault (to_upload_tracepoints, | |
892 | (int (*) (struct uploaded_tp **)) | |
893 | return_zero); | |
894 | de_fault (to_upload_trace_state_variables, | |
895 | (int (*) (struct uploaded_tsv **)) | |
896 | return_zero); | |
897 | de_fault (to_get_raw_trace_data, | |
898 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
899 | tcomplain); | |
405f8e94 SS |
900 | de_fault (to_get_min_fast_tracepoint_insn_len, |
901 | (int (*) (void)) | |
902 | return_minus_one); | |
35b1e5cc SS |
903 | de_fault (to_set_disconnected_tracing, |
904 | (void (*) (int)) | |
4daf5ac0 SS |
905 | target_ignore); |
906 | de_fault (to_set_circular_trace_buffer, | |
907 | (void (*) (int)) | |
908 | target_ignore); | |
f6f899bf HAQ |
909 | de_fault (to_set_trace_buffer_size, |
910 | (void (*) (LONGEST)) | |
911 | target_ignore); | |
f196051f | 912 | de_fault (to_set_trace_notes, |
ca623f82 | 913 | (int (*) (const char *, const char *, const char *)) |
f196051f | 914 | return_zero); |
711e434b PM |
915 | de_fault (to_get_tib_address, |
916 | (int (*) (ptid_t, CORE_ADDR *)) | |
917 | tcomplain); | |
d914c394 SS |
918 | de_fault (to_set_permissions, |
919 | (void (*) (void)) | |
920 | target_ignore); | |
0fb4aa4b PA |
921 | de_fault (to_static_tracepoint_marker_at, |
922 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
923 | return_zero); | |
924 | de_fault (to_static_tracepoint_markers_by_strid, | |
925 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
926 | tcomplain); | |
b3b9301e PA |
927 | de_fault (to_traceframe_info, |
928 | (struct traceframe_info * (*) (void)) | |
1527aea8 | 929 | return_zero); |
b775012e LM |
930 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
931 | (int (*) (void)) | |
932 | return_zero); | |
d3ce09f5 SS |
933 | de_fault (to_can_run_breakpoint_commands, |
934 | (int (*) (void)) | |
935 | return_zero); | |
d1feda86 YQ |
936 | de_fault (to_use_agent, |
937 | (int (*) (int)) | |
938 | tcomplain); | |
939 | de_fault (to_can_use_agent, | |
940 | (int (*) (void)) | |
941 | return_zero); | |
ced63ec0 GB |
942 | de_fault (to_augmented_libraries_svr4_read, |
943 | (int (*) (void)) | |
944 | return_zero); | |
32231432 PA |
945 | de_fault (to_execution_direction, default_execution_direction); |
946 | ||
c906108c | 947 | #undef de_fault |
c906108c | 948 | |
7998dfc3 AC |
949 | /* Finally, position the target-stack beneath the squashed |
950 | "current_target". That way code looking for a non-inherited | |
951 | target method can quickly and simply find it. */ | |
952 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
953 | |
954 | if (targetdebug) | |
955 | setup_target_debug (); | |
c906108c SS |
956 | } |
957 | ||
958 | /* Push a new target type into the stack of the existing target accessors, | |
959 | possibly superseding some of the existing accessors. | |
960 | ||
c906108c SS |
961 | Rather than allow an empty stack, we always have the dummy target at |
962 | the bottom stratum, so we can call the function vectors without | |
963 | checking them. */ | |
964 | ||
b26a4dcb | 965 | void |
fba45db2 | 966 | push_target (struct target_ops *t) |
c906108c | 967 | { |
258b763a | 968 | struct target_ops **cur; |
c906108c SS |
969 | |
970 | /* Check magic number. If wrong, it probably means someone changed | |
971 | the struct definition, but not all the places that initialize one. */ | |
972 | if (t->to_magic != OPS_MAGIC) | |
973 | { | |
c5aa993b JM |
974 | fprintf_unfiltered (gdb_stderr, |
975 | "Magic number of %s target struct wrong\n", | |
976 | t->to_shortname); | |
3e43a32a MS |
977 | internal_error (__FILE__, __LINE__, |
978 | _("failed internal consistency check")); | |
c906108c SS |
979 | } |
980 | ||
258b763a AC |
981 | /* Find the proper stratum to install this target in. */ |
982 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 983 | { |
258b763a | 984 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
985 | break; |
986 | } | |
987 | ||
258b763a | 988 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 989 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
990 | targets to CUR, and not just those at this stratum level. */ |
991 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
992 | { | |
993 | /* There's already something at this stratum level. Close it, | |
994 | and un-hook it from the stack. */ | |
995 | struct target_ops *tmp = (*cur); | |
5d502164 | 996 | |
258b763a AC |
997 | (*cur) = (*cur)->beneath; |
998 | tmp->beneath = NULL; | |
460014f5 | 999 | target_close (tmp); |
258b763a | 1000 | } |
c906108c SS |
1001 | |
1002 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
1003 | t->beneath = (*cur); |
1004 | (*cur) = t; | |
c906108c SS |
1005 | |
1006 | update_current_target (); | |
c906108c SS |
1007 | } |
1008 | ||
2bc416ba | 1009 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1010 | Return how many times it was removed (0 or 1). */ |
1011 | ||
1012 | int | |
fba45db2 | 1013 | unpush_target (struct target_ops *t) |
c906108c | 1014 | { |
258b763a AC |
1015 | struct target_ops **cur; |
1016 | struct target_ops *tmp; | |
c906108c | 1017 | |
c8d104ad PA |
1018 | if (t->to_stratum == dummy_stratum) |
1019 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1020 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1021 | |
c906108c | 1022 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1023 | can only occur once in the target stack. */ |
c906108c | 1024 | |
258b763a AC |
1025 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1026 | { | |
1027 | if ((*cur) == t) | |
1028 | break; | |
1029 | } | |
c906108c | 1030 | |
305436e0 PA |
1031 | /* If we don't find target_ops, quit. Only open targets should be |
1032 | closed. */ | |
258b763a | 1033 | if ((*cur) == NULL) |
305436e0 | 1034 | return 0; |
5269965e | 1035 | |
c378eb4e | 1036 | /* Unchain the target. */ |
258b763a AC |
1037 | tmp = (*cur); |
1038 | (*cur) = (*cur)->beneath; | |
1039 | tmp->beneath = NULL; | |
c906108c SS |
1040 | |
1041 | update_current_target (); | |
c906108c | 1042 | |
305436e0 PA |
1043 | /* Finally close the target. Note we do this after unchaining, so |
1044 | any target method calls from within the target_close | |
1045 | implementation don't end up in T anymore. */ | |
460014f5 | 1046 | target_close (t); |
305436e0 | 1047 | |
c906108c SS |
1048 | return 1; |
1049 | } | |
1050 | ||
aa76d38d | 1051 | void |
460014f5 | 1052 | pop_all_targets_above (enum strata above_stratum) |
aa76d38d | 1053 | { |
87ab71f0 | 1054 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1055 | { |
aa76d38d PA |
1056 | if (!unpush_target (target_stack)) |
1057 | { | |
1058 | fprintf_unfiltered (gdb_stderr, | |
1059 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1060 | target_stack->to_shortname); |
aa76d38d PA |
1061 | internal_error (__FILE__, __LINE__, |
1062 | _("failed internal consistency check")); | |
1063 | break; | |
1064 | } | |
1065 | } | |
1066 | } | |
1067 | ||
87ab71f0 | 1068 | void |
460014f5 | 1069 | pop_all_targets (void) |
87ab71f0 | 1070 | { |
460014f5 | 1071 | pop_all_targets_above (dummy_stratum); |
87ab71f0 PA |
1072 | } |
1073 | ||
c0edd9ed JK |
1074 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1075 | ||
1076 | int | |
1077 | target_is_pushed (struct target_ops *t) | |
1078 | { | |
1079 | struct target_ops **cur; | |
1080 | ||
1081 | /* Check magic number. If wrong, it probably means someone changed | |
1082 | the struct definition, but not all the places that initialize one. */ | |
1083 | if (t->to_magic != OPS_MAGIC) | |
1084 | { | |
1085 | fprintf_unfiltered (gdb_stderr, | |
1086 | "Magic number of %s target struct wrong\n", | |
1087 | t->to_shortname); | |
3e43a32a MS |
1088 | internal_error (__FILE__, __LINE__, |
1089 | _("failed internal consistency check")); | |
c0edd9ed JK |
1090 | } |
1091 | ||
1092 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1093 | if (*cur == t) | |
1094 | return 1; | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
72f5cf0e | 1099 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1100 | current thread's thread-local storage with offset OFFSET. */ |
1101 | CORE_ADDR | |
1102 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1103 | { | |
1104 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1105 | struct target_ops *target; |
1106 | ||
1107 | for (target = current_target.beneath; | |
1108 | target != NULL; | |
1109 | target = target->beneath) | |
1110 | { | |
1111 | if (target->to_get_thread_local_address != NULL) | |
1112 | break; | |
1113 | } | |
9e35dae4 | 1114 | |
117de6a9 | 1115 | if (target != NULL |
f5656ead | 1116 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ())) |
9e35dae4 DJ |
1117 | { |
1118 | ptid_t ptid = inferior_ptid; | |
1119 | volatile struct gdb_exception ex; | |
1120 | ||
1121 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1122 | { | |
1123 | CORE_ADDR lm_addr; | |
1124 | ||
1125 | /* Fetch the load module address for this objfile. */ | |
f5656ead | 1126 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch (), |
9e35dae4 DJ |
1127 | objfile); |
1128 | /* If it's 0, throw the appropriate exception. */ | |
1129 | if (lm_addr == 0) | |
1130 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1131 | _("TLS load module not found")); | |
1132 | ||
3e43a32a MS |
1133 | addr = target->to_get_thread_local_address (target, ptid, |
1134 | lm_addr, offset); | |
9e35dae4 DJ |
1135 | } |
1136 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1137 | throw the error to some higher catcher. */ | |
1138 | if (ex.reason < 0) | |
1139 | { | |
1140 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1141 | ||
1142 | switch (ex.error) | |
1143 | { | |
1144 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1145 | error (_("Cannot find thread-local variables " |
1146 | "in this thread library.")); | |
9e35dae4 DJ |
1147 | break; |
1148 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1149 | if (objfile_is_library) | |
1150 | error (_("Cannot find shared library `%s' in dynamic" | |
4262abfb | 1151 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1152 | else |
1153 | error (_("Cannot find executable file `%s' in dynamic" | |
4262abfb | 1154 | " linker's load module list"), objfile_name (objfile)); |
9e35dae4 DJ |
1155 | break; |
1156 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1157 | if (objfile_is_library) | |
1158 | error (_("The inferior has not yet allocated storage for" | |
1159 | " thread-local variables in\n" | |
1160 | "the shared library `%s'\n" | |
1161 | "for %s"), | |
4262abfb | 1162 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1163 | else |
1164 | error (_("The inferior has not yet allocated storage for" | |
1165 | " thread-local variables in\n" | |
1166 | "the executable `%s'\n" | |
1167 | "for %s"), | |
4262abfb | 1168 | objfile_name (objfile), target_pid_to_str (ptid)); |
9e35dae4 DJ |
1169 | break; |
1170 | case TLS_GENERIC_ERROR: | |
1171 | if (objfile_is_library) | |
1172 | error (_("Cannot find thread-local storage for %s, " | |
1173 | "shared library %s:\n%s"), | |
1174 | target_pid_to_str (ptid), | |
4262abfb | 1175 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1176 | else |
1177 | error (_("Cannot find thread-local storage for %s, " | |
1178 | "executable file %s:\n%s"), | |
1179 | target_pid_to_str (ptid), | |
4262abfb | 1180 | objfile_name (objfile), ex.message); |
9e35dae4 DJ |
1181 | break; |
1182 | default: | |
1183 | throw_exception (ex); | |
1184 | break; | |
1185 | } | |
1186 | } | |
1187 | } | |
1188 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1189 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1190 | else | |
1191 | error (_("Cannot find thread-local variables on this target")); | |
1192 | ||
1193 | return addr; | |
1194 | } | |
1195 | ||
6be7b56e PA |
1196 | const char * |
1197 | target_xfer_error_to_string (enum target_xfer_error err) | |
1198 | { | |
1199 | #define CASE(X) case X: return #X | |
1200 | switch (err) | |
1201 | { | |
1202 | CASE(TARGET_XFER_E_IO); | |
1203 | CASE(TARGET_XFER_E_UNAVAILABLE); | |
1204 | default: | |
1205 | return "<unknown>"; | |
1206 | } | |
1207 | #undef CASE | |
1208 | }; | |
1209 | ||
1210 | ||
c906108c SS |
1211 | #undef MIN |
1212 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1213 | ||
1214 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1215 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1216 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1217 | is responsible for freeing it. Return the number of bytes successfully | |
1218 | read. */ | |
1219 | ||
1220 | int | |
fba45db2 | 1221 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c | 1222 | { |
c2e8b827 | 1223 | int tlen, offset, i; |
1b0ba102 | 1224 | gdb_byte buf[4]; |
c906108c SS |
1225 | int errcode = 0; |
1226 | char *buffer; | |
1227 | int buffer_allocated; | |
1228 | char *bufptr; | |
1229 | unsigned int nbytes_read = 0; | |
1230 | ||
6217bf3e MS |
1231 | gdb_assert (string); |
1232 | ||
c906108c SS |
1233 | /* Small for testing. */ |
1234 | buffer_allocated = 4; | |
1235 | buffer = xmalloc (buffer_allocated); | |
1236 | bufptr = buffer; | |
1237 | ||
c906108c SS |
1238 | while (len > 0) |
1239 | { | |
1240 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1241 | offset = memaddr & 3; | |
1242 | ||
1b0ba102 | 1243 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1244 | if (errcode != 0) |
1245 | { | |
1246 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1247 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1248 | a single byte. */ |
1249 | tlen = 1; | |
1250 | offset = 0; | |
b8eb5af0 | 1251 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1252 | if (errcode != 0) |
1253 | goto done; | |
1254 | } | |
1255 | ||
1256 | if (bufptr - buffer + tlen > buffer_allocated) | |
1257 | { | |
1258 | unsigned int bytes; | |
5d502164 | 1259 | |
c906108c SS |
1260 | bytes = bufptr - buffer; |
1261 | buffer_allocated *= 2; | |
1262 | buffer = xrealloc (buffer, buffer_allocated); | |
1263 | bufptr = buffer + bytes; | |
1264 | } | |
1265 | ||
1266 | for (i = 0; i < tlen; i++) | |
1267 | { | |
1268 | *bufptr++ = buf[i + offset]; | |
1269 | if (buf[i + offset] == '\000') | |
1270 | { | |
1271 | nbytes_read += i + 1; | |
1272 | goto done; | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | memaddr += tlen; | |
1277 | len -= tlen; | |
1278 | nbytes_read += tlen; | |
1279 | } | |
c5aa993b | 1280 | done: |
6217bf3e | 1281 | *string = buffer; |
c906108c SS |
1282 | if (errnop != NULL) |
1283 | *errnop = errcode; | |
c906108c SS |
1284 | return nbytes_read; |
1285 | } | |
1286 | ||
07b82ea5 PA |
1287 | struct target_section_table * |
1288 | target_get_section_table (struct target_ops *target) | |
1289 | { | |
1290 | struct target_ops *t; | |
1291 | ||
1292 | if (targetdebug) | |
1293 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1294 | ||
1295 | for (t = target; t != NULL; t = t->beneath) | |
1296 | if (t->to_get_section_table != NULL) | |
1297 | return (*t->to_get_section_table) (t); | |
1298 | ||
1299 | return NULL; | |
1300 | } | |
1301 | ||
8db32d44 | 1302 | /* Find a section containing ADDR. */ |
07b82ea5 | 1303 | |
0542c86d | 1304 | struct target_section * |
8db32d44 AC |
1305 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1306 | { | |
07b82ea5 | 1307 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1308 | struct target_section *secp; |
07b82ea5 PA |
1309 | |
1310 | if (table == NULL) | |
1311 | return NULL; | |
1312 | ||
1313 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1314 | { |
1315 | if (addr >= secp->addr && addr < secp->endaddr) | |
1316 | return secp; | |
1317 | } | |
1318 | return NULL; | |
1319 | } | |
1320 | ||
e6e4e701 PA |
1321 | /* Read memory from the live target, even if currently inspecting a |
1322 | traceframe. The return is the same as that of target_read. */ | |
1323 | ||
1324 | static LONGEST | |
1325 | target_read_live_memory (enum target_object object, | |
1326 | ULONGEST memaddr, gdb_byte *myaddr, LONGEST len) | |
1327 | { | |
23d577b0 | 1328 | LONGEST ret; |
e6e4e701 PA |
1329 | struct cleanup *cleanup; |
1330 | ||
1331 | /* Switch momentarily out of tfind mode so to access live memory. | |
1332 | Note that this must not clear global state, such as the frame | |
1333 | cache, which must still remain valid for the previous traceframe. | |
1334 | We may be _building_ the frame cache at this point. */ | |
1335 | cleanup = make_cleanup_restore_traceframe_number (); | |
1336 | set_traceframe_number (-1); | |
1337 | ||
1338 | ret = target_read (current_target.beneath, object, NULL, | |
1339 | myaddr, memaddr, len); | |
1340 | ||
1341 | do_cleanups (cleanup); | |
1342 | return ret; | |
1343 | } | |
1344 | ||
1345 | /* Using the set of read-only target sections of OPS, read live | |
1346 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1347 | top-most target again. |
1348 | ||
1349 | For interface/parameters/return description see target.h, | |
1350 | to_xfer_partial. */ | |
e6e4e701 PA |
1351 | |
1352 | static LONGEST | |
1353 | memory_xfer_live_readonly_partial (struct target_ops *ops, | |
1354 | enum target_object object, | |
1355 | gdb_byte *readbuf, ULONGEST memaddr, | |
1356 | LONGEST len) | |
1357 | { | |
1358 | struct target_section *secp; | |
1359 | struct target_section_table *table; | |
1360 | ||
1361 | secp = target_section_by_addr (ops, memaddr); | |
1362 | if (secp != NULL | |
2b2848e2 DE |
1363 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1364 | secp->the_bfd_section) | |
e6e4e701 PA |
1365 | & SEC_READONLY)) |
1366 | { | |
1367 | struct target_section *p; | |
1368 | ULONGEST memend = memaddr + len; | |
1369 | ||
1370 | table = target_get_section_table (ops); | |
1371 | ||
1372 | for (p = table->sections; p < table->sections_end; p++) | |
1373 | { | |
1374 | if (memaddr >= p->addr) | |
1375 | { | |
1376 | if (memend <= p->endaddr) | |
1377 | { | |
1378 | /* Entire transfer is within this section. */ | |
1379 | return target_read_live_memory (object, memaddr, | |
1380 | readbuf, len); | |
1381 | } | |
1382 | else if (memaddr >= p->endaddr) | |
1383 | { | |
1384 | /* This section ends before the transfer starts. */ | |
1385 | continue; | |
1386 | } | |
1387 | else | |
1388 | { | |
1389 | /* This section overlaps the transfer. Just do half. */ | |
1390 | len = p->endaddr - memaddr; | |
1391 | return target_read_live_memory (object, memaddr, | |
1392 | readbuf, len); | |
1393 | } | |
1394 | } | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | return 0; | |
1399 | } | |
1400 | ||
7f79c47e DE |
1401 | /* Perform a partial memory transfer. |
1402 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 DJ |
1403 | |
1404 | static LONGEST | |
f0ba3972 PA |
1405 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
1406 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1407 | LONGEST len) | |
0779438d | 1408 | { |
cf7a04e8 DJ |
1409 | LONGEST res; |
1410 | int reg_len; | |
1411 | struct mem_region *region; | |
4e5d721f | 1412 | struct inferior *inf; |
cf7a04e8 | 1413 | |
07b82ea5 PA |
1414 | /* For accesses to unmapped overlay sections, read directly from |
1415 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1416 | if (readbuf != NULL && overlay_debugging) | |
1417 | { | |
1418 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1419 | |
07b82ea5 PA |
1420 | if (pc_in_unmapped_range (memaddr, section)) |
1421 | { | |
1422 | struct target_section_table *table | |
1423 | = target_get_section_table (ops); | |
1424 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1425 | |
07b82ea5 PA |
1426 | memaddr = overlay_mapped_address (memaddr, section); |
1427 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1428 | memaddr, len, | |
1429 | table->sections, | |
1430 | table->sections_end, | |
1431 | section_name); | |
1432 | } | |
1433 | } | |
1434 | ||
1435 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1436 | if (readbuf != NULL && trust_readonly) |
1437 | { | |
0542c86d | 1438 | struct target_section *secp; |
07b82ea5 | 1439 | struct target_section_table *table; |
cf7a04e8 DJ |
1440 | |
1441 | secp = target_section_by_addr (ops, memaddr); | |
1442 | if (secp != NULL | |
2b2848e2 DE |
1443 | && (bfd_get_section_flags (secp->the_bfd_section->owner, |
1444 | secp->the_bfd_section) | |
cf7a04e8 | 1445 | & SEC_READONLY)) |
07b82ea5 PA |
1446 | { |
1447 | table = target_get_section_table (ops); | |
1448 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1449 | memaddr, len, | |
1450 | table->sections, | |
1451 | table->sections_end, | |
1452 | NULL); | |
1453 | } | |
98646950 UW |
1454 | } |
1455 | ||
e6e4e701 PA |
1456 | /* If reading unavailable memory in the context of traceframes, and |
1457 | this address falls within a read-only section, fallback to | |
1458 | reading from live memory. */ | |
1459 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1460 | { | |
1461 | VEC(mem_range_s) *available; | |
1462 | ||
1463 | /* If we fail to get the set of available memory, then the | |
1464 | target does not support querying traceframe info, and so we | |
1465 | attempt reading from the traceframe anyway (assuming the | |
1466 | target implements the old QTro packet then). */ | |
1467 | if (traceframe_available_memory (&available, memaddr, len)) | |
1468 | { | |
1469 | struct cleanup *old_chain; | |
1470 | ||
1471 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1472 | ||
1473 | if (VEC_empty (mem_range_s, available) | |
1474 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1475 | { | |
1476 | /* Don't read into the traceframe's available | |
1477 | memory. */ | |
1478 | if (!VEC_empty (mem_range_s, available)) | |
1479 | { | |
1480 | LONGEST oldlen = len; | |
1481 | ||
1482 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1483 | gdb_assert (len <= oldlen); | |
1484 | } | |
1485 | ||
1486 | do_cleanups (old_chain); | |
1487 | ||
1488 | /* This goes through the topmost target again. */ | |
1489 | res = memory_xfer_live_readonly_partial (ops, object, | |
1490 | readbuf, memaddr, len); | |
1491 | if (res > 0) | |
1492 | return res; | |
1493 | ||
1494 | /* No use trying further, we know some memory starting | |
1495 | at MEMADDR isn't available. */ | |
6be7b56e | 1496 | return TARGET_XFER_E_UNAVAILABLE; |
e6e4e701 PA |
1497 | } |
1498 | ||
1499 | /* Don't try to read more than how much is available, in | |
1500 | case the target implements the deprecated QTro packet to | |
1501 | cater for older GDBs (the target's knowledge of read-only | |
1502 | sections may be outdated by now). */ | |
1503 | len = VEC_index (mem_range_s, available, 0)->length; | |
1504 | ||
1505 | do_cleanups (old_chain); | |
1506 | } | |
1507 | } | |
1508 | ||
cf7a04e8 DJ |
1509 | /* Try GDB's internal data cache. */ |
1510 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1511 | /* region->hi == 0 means there's no upper bound. */ |
1512 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1513 | reg_len = len; |
1514 | else | |
1515 | reg_len = region->hi - memaddr; | |
1516 | ||
1517 | switch (region->attrib.mode) | |
1518 | { | |
1519 | case MEM_RO: | |
1520 | if (writebuf != NULL) | |
1521 | return -1; | |
1522 | break; | |
1523 | ||
1524 | case MEM_WO: | |
1525 | if (readbuf != NULL) | |
1526 | return -1; | |
1527 | break; | |
a76d924d DJ |
1528 | |
1529 | case MEM_FLASH: | |
1530 | /* We only support writing to flash during "load" for now. */ | |
1531 | if (writebuf != NULL) | |
1532 | error (_("Writing to flash memory forbidden in this context")); | |
1533 | break; | |
4b5752d0 VP |
1534 | |
1535 | case MEM_NONE: | |
1536 | return -1; | |
cf7a04e8 DJ |
1537 | } |
1538 | ||
6c95b8df PA |
1539 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1540 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1541 | else | |
1542 | inf = NULL; | |
4e5d721f DE |
1543 | |
1544 | if (inf != NULL | |
2f4d8875 PA |
1545 | /* The dcache reads whole cache lines; that doesn't play well |
1546 | with reading from a trace buffer, because reading outside of | |
1547 | the collected memory range fails. */ | |
1548 | && get_traceframe_number () == -1 | |
4e5d721f | 1549 | && (region->attrib.cache |
29453a14 YQ |
1550 | || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY) |
1551 | || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY))) | |
cf7a04e8 | 1552 | { |
2a2f9fe4 YQ |
1553 | DCACHE *dcache = target_dcache_get_or_init (); |
1554 | ||
cf7a04e8 | 1555 | if (readbuf != NULL) |
2a2f9fe4 | 1556 | res = dcache_xfer_memory (ops, dcache, memaddr, readbuf, reg_len, 0); |
cf7a04e8 DJ |
1557 | else |
1558 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1559 | correctness dcache_xfer_memory should take readbuf and | |
1560 | writebuf. */ | |
2a2f9fe4 | 1561 | res = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf, |
cf7a04e8 DJ |
1562 | reg_len, 1); |
1563 | if (res <= 0) | |
1564 | return -1; | |
1565 | else | |
f0ba3972 | 1566 | return res; |
cf7a04e8 DJ |
1567 | } |
1568 | ||
1569 | /* If none of those methods found the memory we wanted, fall back | |
1570 | to a target partial transfer. Normally a single call to | |
1571 | to_xfer_partial is enough; if it doesn't recognize an object | |
1572 | it will call the to_xfer_partial of the next target down. | |
1573 | But for memory this won't do. Memory is the only target | |
1574 | object which can be read from more than one valid target. | |
1575 | A core file, for instance, could have some of memory but | |
1576 | delegate other bits to the target below it. So, we must | |
1577 | manually try all targets. */ | |
1578 | ||
1579 | do | |
1580 | { | |
1581 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1582 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1583 | if (res > 0) |
8defab1a | 1584 | break; |
cf7a04e8 | 1585 | |
5ad3a4ca DJ |
1586 | /* We want to continue past core files to executables, but not |
1587 | past a running target's memory. */ | |
c35b1492 | 1588 | if (ops->to_has_all_memory (ops)) |
8defab1a | 1589 | break; |
5ad3a4ca | 1590 | |
cf7a04e8 DJ |
1591 | ops = ops->beneath; |
1592 | } | |
1593 | while (ops != NULL); | |
1594 | ||
41dcd03f DE |
1595 | /* Make sure the cache gets updated no matter what - if we are writing |
1596 | to the stack. Even if this write is not tagged as such, we still need | |
1597 | to update the cache. */ | |
1598 | ||
1599 | if (res > 0 | |
1600 | && inf != NULL | |
1601 | && writebuf != NULL | |
f2de9785 | 1602 | && target_dcache_init_p () |
41dcd03f | 1603 | && !region->attrib.cache |
29453a14 YQ |
1604 | && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY) |
1605 | || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY))) | |
41dcd03f | 1606 | { |
f2de9785 | 1607 | DCACHE *dcache = target_dcache_get (); |
2a2f9fe4 YQ |
1608 | |
1609 | dcache_update (dcache, memaddr, (void *) writebuf, res); | |
41dcd03f DE |
1610 | } |
1611 | ||
cf7a04e8 DJ |
1612 | /* If we still haven't got anything, return the last error. We |
1613 | give up. */ | |
1614 | return res; | |
0779438d AC |
1615 | } |
1616 | ||
f0ba3972 PA |
1617 | /* Perform a partial memory transfer. For docs see target.h, |
1618 | to_xfer_partial. */ | |
1619 | ||
1620 | static LONGEST | |
1621 | memory_xfer_partial (struct target_ops *ops, enum target_object object, | |
1622 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1623 | LONGEST len) | |
1624 | { | |
1625 | int res; | |
1626 | ||
1627 | /* Zero length requests are ok and require no work. */ | |
1628 | if (len == 0) | |
1629 | return 0; | |
1630 | ||
1631 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1632 | breakpoint insns, thus hiding out from higher layers whether | |
1633 | there are software breakpoints inserted in the code stream. */ | |
1634 | if (readbuf != NULL) | |
1635 | { | |
1636 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len); | |
1637 | ||
1638 | if (res > 0 && !show_memory_breakpoints) | |
1639 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); | |
1640 | } | |
1641 | else | |
1642 | { | |
1643 | void *buf; | |
1644 | struct cleanup *old_chain; | |
1645 | ||
67c059c2 AB |
1646 | /* A large write request is likely to be partially satisfied |
1647 | by memory_xfer_partial_1. We will continually malloc | |
1648 | and free a copy of the entire write request for breakpoint | |
1649 | shadow handling even though we only end up writing a small | |
1650 | subset of it. Cap writes to 4KB to mitigate this. */ | |
1651 | len = min (4096, len); | |
1652 | ||
f0ba3972 PA |
1653 | buf = xmalloc (len); |
1654 | old_chain = make_cleanup (xfree, buf); | |
1655 | memcpy (buf, writebuf, len); | |
1656 | ||
1657 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
1658 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len); | |
1659 | ||
1660 | do_cleanups (old_chain); | |
1661 | } | |
1662 | ||
1663 | return res; | |
1664 | } | |
1665 | ||
8defab1a DJ |
1666 | static void |
1667 | restore_show_memory_breakpoints (void *arg) | |
1668 | { | |
1669 | show_memory_breakpoints = (uintptr_t) arg; | |
1670 | } | |
1671 | ||
1672 | struct cleanup * | |
1673 | make_show_memory_breakpoints_cleanup (int show) | |
1674 | { | |
1675 | int current = show_memory_breakpoints; | |
8defab1a | 1676 | |
5d502164 | 1677 | show_memory_breakpoints = show; |
8defab1a DJ |
1678 | return make_cleanup (restore_show_memory_breakpoints, |
1679 | (void *) (uintptr_t) current); | |
1680 | } | |
1681 | ||
7f79c47e DE |
1682 | /* For docs see target.h, to_xfer_partial. */ |
1683 | ||
6be7b56e | 1684 | LONGEST |
27394598 AC |
1685 | target_xfer_partial (struct target_ops *ops, |
1686 | enum target_object object, const char *annex, | |
1687 | void *readbuf, const void *writebuf, | |
1688 | ULONGEST offset, LONGEST len) | |
1689 | { | |
1690 | LONGEST retval; | |
1691 | ||
1692 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1693 | |
d914c394 SS |
1694 | if (writebuf && !may_write_memory) |
1695 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1696 | core_addr_to_string_nz (offset), plongest (len)); | |
1697 | ||
cf7a04e8 DJ |
1698 | /* If this is a memory transfer, let the memory-specific code |
1699 | have a look at it instead. Memory transfers are more | |
1700 | complicated. */ | |
29453a14 YQ |
1701 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY |
1702 | || object == TARGET_OBJECT_CODE_MEMORY) | |
4e5d721f DE |
1703 | retval = memory_xfer_partial (ops, object, readbuf, |
1704 | writebuf, offset, len); | |
cf7a04e8 DJ |
1705 | else |
1706 | { | |
1707 | enum target_object raw_object = object; | |
1708 | ||
1709 | /* If this is a raw memory transfer, request the normal | |
1710 | memory object from other layers. */ | |
1711 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1712 | raw_object = TARGET_OBJECT_MEMORY; | |
1713 | ||
1714 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1715 | writebuf, offset, len); | |
1716 | } | |
1717 | ||
27394598 AC |
1718 | if (targetdebug) |
1719 | { | |
1720 | const unsigned char *myaddr = NULL; | |
1721 | ||
1722 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
1723 | "%s:target_xfer_partial " |
1724 | "(%d, %s, %s, %s, %s, %s) = %s", | |
27394598 AC |
1725 | ops->to_shortname, |
1726 | (int) object, | |
1727 | (annex ? annex : "(null)"), | |
53b71562 JB |
1728 | host_address_to_string (readbuf), |
1729 | host_address_to_string (writebuf), | |
0b1553bc UW |
1730 | core_addr_to_string_nz (offset), |
1731 | plongest (len), plongest (retval)); | |
27394598 AC |
1732 | |
1733 | if (readbuf) | |
1734 | myaddr = readbuf; | |
1735 | if (writebuf) | |
1736 | myaddr = writebuf; | |
1737 | if (retval > 0 && myaddr != NULL) | |
1738 | { | |
1739 | int i; | |
2bc416ba | 1740 | |
27394598 AC |
1741 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1742 | for (i = 0; i < retval; i++) | |
1743 | { | |
53b71562 | 1744 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1745 | { |
1746 | if (targetdebug < 2 && i > 0) | |
1747 | { | |
1748 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1749 | break; | |
1750 | } | |
1751 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1752 | } | |
2bc416ba | 1753 | |
27394598 AC |
1754 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1755 | } | |
1756 | } | |
2bc416ba | 1757 | |
27394598 AC |
1758 | fputc_unfiltered ('\n', gdb_stdlog); |
1759 | } | |
1760 | return retval; | |
1761 | } | |
1762 | ||
578d3588 PA |
1763 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1764 | results in GDB's memory at MYADDR. Returns either 0 for success or | |
1765 | a target_xfer_error value if any error occurs. | |
c906108c SS |
1766 | |
1767 | If an error occurs, no guarantee is made about the contents of the data at | |
1768 | MYADDR. In particular, the caller should not depend upon partial reads | |
1769 | filling the buffer with good data. There is no way for the caller to know | |
1770 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1771 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1772 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1773 | |
1774 | int | |
1b162304 | 1775 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 1776 | { |
c35b1492 PA |
1777 | /* Dispatch to the topmost target, not the flattened current_target. |
1778 | Memory accesses check target->to_has_(all_)memory, and the | |
1779 | flattened target doesn't inherit those. */ | |
1780 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1781 | myaddr, memaddr, len) == len) |
1782 | return 0; | |
0779438d | 1783 | else |
578d3588 | 1784 | return TARGET_XFER_E_IO; |
c906108c SS |
1785 | } |
1786 | ||
4e5d721f DE |
1787 | /* Like target_read_memory, but specify explicitly that this is a read from |
1788 | the target's stack. This may trigger different cache behavior. */ | |
1789 | ||
1790 | int | |
45aa4659 | 1791 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f DE |
1792 | { |
1793 | /* Dispatch to the topmost target, not the flattened current_target. | |
1794 | Memory accesses check target->to_has_(all_)memory, and the | |
1795 | flattened target doesn't inherit those. */ | |
1796 | ||
1797 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, | |
1798 | myaddr, memaddr, len) == len) | |
1799 | return 0; | |
1800 | else | |
578d3588 | 1801 | return TARGET_XFER_E_IO; |
4e5d721f DE |
1802 | } |
1803 | ||
29453a14 YQ |
1804 | /* Like target_read_memory, but specify explicitly that this is a read from |
1805 | the target's code. This may trigger different cache behavior. */ | |
1806 | ||
1807 | int | |
1808 | target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
1809 | { | |
1810 | if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL, | |
1811 | myaddr, memaddr, len) == len) | |
1812 | return 0; | |
1813 | else | |
1814 | return TARGET_XFER_E_IO; | |
1815 | } | |
1816 | ||
7f79c47e | 1817 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
578d3588 PA |
1818 | Returns either 0 for success or a target_xfer_error value if any |
1819 | error occurs. If an error occurs, no guarantee is made about how | |
1820 | much data got written. Callers that can deal with partial writes | |
1821 | should call target_write. */ | |
7f79c47e | 1822 | |
c906108c | 1823 | int |
45aa4659 | 1824 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
c906108c | 1825 | { |
c35b1492 PA |
1826 | /* Dispatch to the topmost target, not the flattened current_target. |
1827 | Memory accesses check target->to_has_(all_)memory, and the | |
1828 | flattened target doesn't inherit those. */ | |
1829 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1830 | myaddr, memaddr, len) == len) |
1831 | return 0; | |
0779438d | 1832 | else |
578d3588 | 1833 | return TARGET_XFER_E_IO; |
c906108c | 1834 | } |
c5aa993b | 1835 | |
f0ba3972 | 1836 | /* Write LEN bytes from MYADDR to target raw memory at address |
578d3588 PA |
1837 | MEMADDR. Returns either 0 for success or a target_xfer_error value |
1838 | if any error occurs. If an error occurs, no guarantee is made | |
1839 | about how much data got written. Callers that can deal with | |
1840 | partial writes should call target_write. */ | |
f0ba3972 PA |
1841 | |
1842 | int | |
45aa4659 | 1843 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len) |
f0ba3972 PA |
1844 | { |
1845 | /* Dispatch to the topmost target, not the flattened current_target. | |
1846 | Memory accesses check target->to_has_(all_)memory, and the | |
1847 | flattened target doesn't inherit those. */ | |
1848 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1849 | myaddr, memaddr, len) == len) | |
1850 | return 0; | |
1851 | else | |
578d3588 | 1852 | return TARGET_XFER_E_IO; |
f0ba3972 PA |
1853 | } |
1854 | ||
fd79ecee DJ |
1855 | /* Fetch the target's memory map. */ |
1856 | ||
1857 | VEC(mem_region_s) * | |
1858 | target_memory_map (void) | |
1859 | { | |
1860 | VEC(mem_region_s) *result; | |
1861 | struct mem_region *last_one, *this_one; | |
1862 | int ix; | |
1863 | struct target_ops *t; | |
1864 | ||
1865 | if (targetdebug) | |
1866 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1867 | ||
1868 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1869 | if (t->to_memory_map != NULL) | |
1870 | break; | |
1871 | ||
1872 | if (t == NULL) | |
1873 | return NULL; | |
1874 | ||
1875 | result = t->to_memory_map (t); | |
1876 | if (result == NULL) | |
1877 | return NULL; | |
1878 | ||
1879 | qsort (VEC_address (mem_region_s, result), | |
1880 | VEC_length (mem_region_s, result), | |
1881 | sizeof (struct mem_region), mem_region_cmp); | |
1882 | ||
1883 | /* Check that regions do not overlap. Simultaneously assign | |
1884 | a numbering for the "mem" commands to use to refer to | |
1885 | each region. */ | |
1886 | last_one = NULL; | |
1887 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1888 | { | |
1889 | this_one->number = ix; | |
1890 | ||
1891 | if (last_one && last_one->hi > this_one->lo) | |
1892 | { | |
1893 | warning (_("Overlapping regions in memory map: ignoring")); | |
1894 | VEC_free (mem_region_s, result); | |
1895 | return NULL; | |
1896 | } | |
1897 | last_one = this_one; | |
1898 | } | |
1899 | ||
1900 | return result; | |
1901 | } | |
1902 | ||
a76d924d DJ |
1903 | void |
1904 | target_flash_erase (ULONGEST address, LONGEST length) | |
1905 | { | |
1906 | struct target_ops *t; | |
1907 | ||
1908 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1909 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1910 | { |
1911 | if (targetdebug) | |
1912 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1913 | hex_string (address), phex (length, 0)); | |
1914 | t->to_flash_erase (t, address, length); | |
1915 | return; | |
1916 | } | |
a76d924d DJ |
1917 | |
1918 | tcomplain (); | |
1919 | } | |
1920 | ||
1921 | void | |
1922 | target_flash_done (void) | |
1923 | { | |
1924 | struct target_ops *t; | |
1925 | ||
1926 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1927 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1928 | { |
1929 | if (targetdebug) | |
1930 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1931 | t->to_flash_done (t); | |
1932 | return; | |
1933 | } | |
a76d924d DJ |
1934 | |
1935 | tcomplain (); | |
1936 | } | |
1937 | ||
920d2a44 AC |
1938 | static void |
1939 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1940 | struct cmd_list_element *c, const char *value) | |
1941 | { | |
3e43a32a MS |
1942 | fprintf_filtered (file, |
1943 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1944 | value); |
1945 | } | |
3a11626d | 1946 | |
1e3ff5ad AC |
1947 | /* More generic transfers. */ |
1948 | ||
0088c768 | 1949 | static LONGEST |
8aa91c1e | 1950 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1951 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1952 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1953 | { |
1954 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1955 | && ops->deprecated_xfer_memory != NULL) |
1956 | /* If available, fall back to the target's | |
1957 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1958 | { |
4b8a223f | 1959 | int xfered = -1; |
5d502164 | 1960 | |
0088c768 | 1961 | errno = 0; |
4b8a223f AC |
1962 | if (writebuf != NULL) |
1963 | { | |
1964 | void *buffer = xmalloc (len); | |
1965 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1966 | |
4b8a223f | 1967 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1968 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1969 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1970 | do_cleanups (cleanup); |
1971 | } | |
1972 | if (readbuf != NULL) | |
244e85c8 MS |
1973 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1974 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1975 | if (xfered > 0) |
1976 | return xfered; | |
1977 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1978 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1979 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1980 | return 0; |
1981 | else | |
1982 | return -1; | |
1983 | } | |
1984 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1985 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1986 | readbuf, writebuf, offset, len); | |
1987 | else | |
1988 | return -1; | |
1989 | } | |
1990 | ||
1991 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1992 | it does not need to handle memory specially; it just passes all | |
1993 | requests down the stack. */ | |
1994 | ||
1995 | static LONGEST | |
1996 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
1997 | const char *annex, gdb_byte *readbuf, | |
1998 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1999 | { | |
2000 | if (ops->beneath != NULL) | |
2001 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
2002 | readbuf, writebuf, offset, len); | |
0088c768 AC |
2003 | else |
2004 | return -1; | |
2005 | } | |
2006 | ||
7f79c47e | 2007 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 2008 | |
13547ab6 | 2009 | static LONGEST |
1e3ff5ad AC |
2010 | target_read_partial (struct target_ops *ops, |
2011 | enum target_object object, | |
1b0ba102 | 2012 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2013 | ULONGEST offset, LONGEST len) |
2014 | { | |
27394598 | 2015 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
2016 | } |
2017 | ||
13547ab6 | 2018 | static LONGEST |
1e3ff5ad AC |
2019 | target_write_partial (struct target_ops *ops, |
2020 | enum target_object object, | |
1b0ba102 | 2021 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
2022 | ULONGEST offset, LONGEST len) |
2023 | { | |
27394598 | 2024 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
2025 | } |
2026 | ||
2027 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
2028 | |
2029 | /* For docs on target_read see target.h. */ | |
2030 | ||
1e3ff5ad AC |
2031 | LONGEST |
2032 | target_read (struct target_ops *ops, | |
2033 | enum target_object object, | |
1b0ba102 | 2034 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2035 | ULONGEST offset, LONGEST len) |
2036 | { | |
2037 | LONGEST xfered = 0; | |
5d502164 | 2038 | |
1e3ff5ad AC |
2039 | while (xfered < len) |
2040 | { | |
0088c768 | 2041 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 2042 | (gdb_byte *) buf + xfered, |
0088c768 | 2043 | offset + xfered, len - xfered); |
5d502164 | 2044 | |
1e3ff5ad | 2045 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
2046 | if (xfer == 0) |
2047 | return xfered; | |
2048 | if (xfer < 0) | |
0088c768 | 2049 | return -1; |
1e3ff5ad AC |
2050 | xfered += xfer; |
2051 | QUIT; | |
2052 | } | |
2053 | return len; | |
2054 | } | |
2055 | ||
f1a507a1 JB |
2056 | /* Assuming that the entire [begin, end) range of memory cannot be |
2057 | read, try to read whatever subrange is possible to read. | |
2058 | ||
2059 | The function returns, in RESULT, either zero or one memory block. | |
2060 | If there's a readable subrange at the beginning, it is completely | |
2061 | read and returned. Any further readable subrange will not be read. | |
2062 | Otherwise, if there's a readable subrange at the end, it will be | |
2063 | completely read and returned. Any readable subranges before it | |
2064 | (obviously, not starting at the beginning), will be ignored. In | |
2065 | other cases -- either no readable subrange, or readable subrange(s) | |
2066 | that is neither at the beginning, or end, nothing is returned. | |
2067 | ||
2068 | The purpose of this function is to handle a read across a boundary | |
2069 | of accessible memory in a case when memory map is not available. | |
2070 | The above restrictions are fine for this case, but will give | |
2071 | incorrect results if the memory is 'patchy'. However, supporting | |
2072 | 'patchy' memory would require trying to read every single byte, | |
2073 | and it seems unacceptable solution. Explicit memory map is | |
2074 | recommended for this case -- and target_read_memory_robust will | |
2075 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2076 | |
2077 | static void | |
3e43a32a MS |
2078 | read_whatever_is_readable (struct target_ops *ops, |
2079 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2080 | VEC(memory_read_result_s) **result) |
d5086790 | 2081 | { |
f1a507a1 | 2082 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2083 | ULONGEST current_begin = begin; |
2084 | ULONGEST current_end = end; | |
2085 | int forward; | |
2086 | memory_read_result_s r; | |
2087 | ||
2088 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2089 | if (end - begin <= 1) | |
13b3fd9b MS |
2090 | { |
2091 | xfree (buf); | |
2092 | return; | |
2093 | } | |
8dedea02 VP |
2094 | |
2095 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2096 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2097 | at the boundary of accessible region. */ |
2098 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2099 | buf, begin, 1) == 1) | |
2100 | { | |
2101 | forward = 1; | |
2102 | ++current_begin; | |
2103 | } | |
2104 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2105 | buf + (end-begin) - 1, end - 1, 1) == 1) | |
2106 | { | |
2107 | forward = 0; | |
2108 | --current_end; | |
2109 | } | |
2110 | else | |
2111 | { | |
13b3fd9b | 2112 | xfree (buf); |
8dedea02 VP |
2113 | return; |
2114 | } | |
2115 | ||
2116 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2117 | found to be not readable as a whole. | |
2118 | ||
2119 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2120 | so there's no point trying further. */ | |
2121 | while (current_end - current_begin > 1) | |
2122 | { | |
2123 | ULONGEST first_half_begin, first_half_end; | |
2124 | ULONGEST second_half_begin, second_half_end; | |
2125 | LONGEST xfer; | |
8dedea02 | 2126 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2127 | |
8dedea02 VP |
2128 | if (forward) |
2129 | { | |
2130 | first_half_begin = current_begin; | |
2131 | first_half_end = middle; | |
2132 | second_half_begin = middle; | |
2133 | second_half_end = current_end; | |
2134 | } | |
2135 | else | |
2136 | { | |
2137 | first_half_begin = middle; | |
2138 | first_half_end = current_end; | |
2139 | second_half_begin = current_begin; | |
2140 | second_half_end = middle; | |
2141 | } | |
2142 | ||
2143 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2144 | buf + (first_half_begin - begin), | |
2145 | first_half_begin, | |
2146 | first_half_end - first_half_begin); | |
2147 | ||
2148 | if (xfer == first_half_end - first_half_begin) | |
2149 | { | |
c378eb4e | 2150 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2151 | other half. */ |
8dedea02 VP |
2152 | current_begin = second_half_begin; |
2153 | current_end = second_half_end; | |
2154 | } | |
2155 | else | |
2156 | { | |
c378eb4e MS |
2157 | /* This half is not readable. Because we've tried one byte, we |
2158 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2159 | iteration to divide again and try to read. |
2160 | ||
2161 | We don't handle the other half, because this function only tries | |
2162 | to read a single readable subrange. */ | |
2163 | current_begin = first_half_begin; | |
2164 | current_end = first_half_end; | |
2165 | } | |
2166 | } | |
2167 | ||
2168 | if (forward) | |
2169 | { | |
2170 | /* The [begin, current_begin) range has been read. */ | |
2171 | r.begin = begin; | |
2172 | r.end = current_begin; | |
2173 | r.data = buf; | |
2174 | } | |
2175 | else | |
2176 | { | |
2177 | /* The [current_end, end) range has been read. */ | |
2178 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2179 | |
8dedea02 VP |
2180 | r.data = xmalloc (rlen); |
2181 | memcpy (r.data, buf + current_end - begin, rlen); | |
2182 | r.begin = current_end; | |
2183 | r.end = end; | |
2184 | xfree (buf); | |
2185 | } | |
2186 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2187 | } | |
2188 | ||
2189 | void | |
2190 | free_memory_read_result_vector (void *x) | |
2191 | { | |
2192 | VEC(memory_read_result_s) *v = x; | |
2193 | memory_read_result_s *current; | |
2194 | int ix; | |
2195 | ||
2196 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2197 | { | |
2198 | xfree (current->data); | |
2199 | } | |
2200 | VEC_free (memory_read_result_s, v); | |
2201 | } | |
2202 | ||
2203 | VEC(memory_read_result_s) * | |
2204 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2205 | { | |
2206 | VEC(memory_read_result_s) *result = 0; | |
2207 | ||
2208 | LONGEST xfered = 0; | |
d5086790 VP |
2209 | while (xfered < len) |
2210 | { | |
8dedea02 VP |
2211 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2212 | LONGEST rlen; | |
5d502164 | 2213 | |
8dedea02 VP |
2214 | /* If there is no explicit region, a fake one should be created. */ |
2215 | gdb_assert (region); | |
2216 | ||
2217 | if (region->hi == 0) | |
2218 | rlen = len - xfered; | |
2219 | else | |
2220 | rlen = region->hi - offset; | |
2221 | ||
2222 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2223 | { |
c378eb4e | 2224 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2225 | if the region is explicitly marked inaccessible, or |
2226 | 'inaccessible-by-default' is in effect. */ | |
2227 | xfered += rlen; | |
2228 | } | |
2229 | else | |
2230 | { | |
2231 | LONGEST to_read = min (len - xfered, rlen); | |
2232 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2233 | ||
2234 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2235 | (gdb_byte *) buffer, | |
2236 | offset + xfered, to_read); | |
2237 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2238 | if (xfer <= 0) |
d5086790 | 2239 | { |
c378eb4e | 2240 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2241 | some subrange. */ |
2242 | xfree (buffer); | |
3e43a32a MS |
2243 | read_whatever_is_readable (ops, offset + xfered, |
2244 | offset + xfered + to_read, &result); | |
8dedea02 | 2245 | xfered += to_read; |
d5086790 | 2246 | } |
8dedea02 VP |
2247 | else |
2248 | { | |
2249 | struct memory_read_result r; | |
2250 | r.data = buffer; | |
2251 | r.begin = offset + xfered; | |
2252 | r.end = r.begin + xfer; | |
2253 | VEC_safe_push (memory_read_result_s, result, &r); | |
2254 | xfered += xfer; | |
2255 | } | |
2256 | QUIT; | |
d5086790 | 2257 | } |
d5086790 | 2258 | } |
8dedea02 | 2259 | return result; |
d5086790 VP |
2260 | } |
2261 | ||
8dedea02 | 2262 | |
cf7a04e8 DJ |
2263 | /* An alternative to target_write with progress callbacks. */ |
2264 | ||
1e3ff5ad | 2265 | LONGEST |
cf7a04e8 DJ |
2266 | target_write_with_progress (struct target_ops *ops, |
2267 | enum target_object object, | |
2268 | const char *annex, const gdb_byte *buf, | |
2269 | ULONGEST offset, LONGEST len, | |
2270 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2271 | { |
2272 | LONGEST xfered = 0; | |
a76d924d DJ |
2273 | |
2274 | /* Give the progress callback a chance to set up. */ | |
2275 | if (progress) | |
2276 | (*progress) (0, baton); | |
2277 | ||
1e3ff5ad AC |
2278 | while (xfered < len) |
2279 | { | |
2280 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 2281 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 2282 | offset + xfered, len - xfered); |
cf7a04e8 | 2283 | |
13547ab6 DJ |
2284 | if (xfer == 0) |
2285 | return xfered; | |
2286 | if (xfer < 0) | |
0088c768 | 2287 | return -1; |
cf7a04e8 DJ |
2288 | |
2289 | if (progress) | |
2290 | (*progress) (xfer, baton); | |
2291 | ||
1e3ff5ad AC |
2292 | xfered += xfer; |
2293 | QUIT; | |
2294 | } | |
2295 | return len; | |
2296 | } | |
2297 | ||
7f79c47e DE |
2298 | /* For docs on target_write see target.h. */ |
2299 | ||
cf7a04e8 DJ |
2300 | LONGEST |
2301 | target_write (struct target_ops *ops, | |
2302 | enum target_object object, | |
2303 | const char *annex, const gdb_byte *buf, | |
2304 | ULONGEST offset, LONGEST len) | |
2305 | { | |
2306 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2307 | NULL, NULL); | |
2308 | } | |
2309 | ||
159f81f3 DJ |
2310 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2311 | the size of the transferred data. PADDING additional bytes are | |
2312 | available in *BUF_P. This is a helper function for | |
2313 | target_read_alloc; see the declaration of that function for more | |
2314 | information. */ | |
13547ab6 | 2315 | |
159f81f3 DJ |
2316 | static LONGEST |
2317 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2318 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2319 | { |
2320 | size_t buf_alloc, buf_pos; | |
2321 | gdb_byte *buf; | |
2322 | LONGEST n; | |
2323 | ||
2324 | /* This function does not have a length parameter; it reads the | |
2325 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2326 | from one target and partly from another (in a different stratum, | |
2327 | e.g. a core file and an executable). Both reasons make it | |
2328 | unsuitable for reading memory. */ | |
2329 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2330 | ||
2331 | /* Start by reading up to 4K at a time. The target will throttle | |
2332 | this number down if necessary. */ | |
2333 | buf_alloc = 4096; | |
2334 | buf = xmalloc (buf_alloc); | |
2335 | buf_pos = 0; | |
2336 | while (1) | |
2337 | { | |
2338 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 2339 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
2340 | if (n < 0) |
2341 | { | |
2342 | /* An error occurred. */ | |
2343 | xfree (buf); | |
2344 | return -1; | |
2345 | } | |
2346 | else if (n == 0) | |
2347 | { | |
2348 | /* Read all there was. */ | |
2349 | if (buf_pos == 0) | |
2350 | xfree (buf); | |
2351 | else | |
2352 | *buf_p = buf; | |
2353 | return buf_pos; | |
2354 | } | |
2355 | ||
2356 | buf_pos += n; | |
2357 | ||
2358 | /* If the buffer is filling up, expand it. */ | |
2359 | if (buf_alloc < buf_pos * 2) | |
2360 | { | |
2361 | buf_alloc *= 2; | |
2362 | buf = xrealloc (buf, buf_alloc); | |
2363 | } | |
2364 | ||
2365 | QUIT; | |
2366 | } | |
2367 | } | |
2368 | ||
159f81f3 DJ |
2369 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2370 | the size of the transferred data. See the declaration in "target.h" | |
2371 | function for more information about the return value. */ | |
2372 | ||
2373 | LONGEST | |
2374 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2375 | const char *annex, gdb_byte **buf_p) | |
2376 | { | |
2377 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2378 | } | |
2379 | ||
2380 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2381 | returned as a string, allocated using xmalloc. If an error occurs | |
2382 | or the transfer is unsupported, NULL is returned. Empty objects | |
2383 | are returned as allocated but empty strings. A warning is issued | |
2384 | if the result contains any embedded NUL bytes. */ | |
2385 | ||
2386 | char * | |
2387 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2388 | const char *annex) | |
2389 | { | |
39086a0e PA |
2390 | gdb_byte *buffer; |
2391 | char *bufstr; | |
7313baad | 2392 | LONGEST i, transferred; |
159f81f3 | 2393 | |
39086a0e PA |
2394 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); |
2395 | bufstr = (char *) buffer; | |
159f81f3 DJ |
2396 | |
2397 | if (transferred < 0) | |
2398 | return NULL; | |
2399 | ||
2400 | if (transferred == 0) | |
2401 | return xstrdup (""); | |
2402 | ||
39086a0e | 2403 | bufstr[transferred] = 0; |
7313baad UW |
2404 | |
2405 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
2406 | for (i = strlen (bufstr); i < transferred; i++) |
2407 | if (bufstr[i] != 0) | |
7313baad UW |
2408 | { |
2409 | warning (_("target object %d, annex %s, " | |
2410 | "contained unexpected null characters"), | |
2411 | (int) object, annex ? annex : "(none)"); | |
2412 | break; | |
2413 | } | |
159f81f3 | 2414 | |
39086a0e | 2415 | return bufstr; |
159f81f3 DJ |
2416 | } |
2417 | ||
b6591e8b AC |
2418 | /* Memory transfer methods. */ |
2419 | ||
2420 | void | |
1b0ba102 | 2421 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2422 | LONGEST len) |
2423 | { | |
07b82ea5 PA |
2424 | /* This method is used to read from an alternate, non-current |
2425 | target. This read must bypass the overlay support (as symbols | |
2426 | don't match this target), and GDB's internal cache (wrong cache | |
2427 | for this target). */ | |
2428 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b | 2429 | != len) |
578d3588 | 2430 | memory_error (TARGET_XFER_E_IO, addr); |
b6591e8b AC |
2431 | } |
2432 | ||
2433 | ULONGEST | |
5d502164 MS |
2434 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2435 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2436 | { |
f6519ebc | 2437 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2438 | |
2439 | gdb_assert (len <= sizeof (buf)); | |
2440 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2441 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2442 | } |
2443 | ||
d914c394 SS |
2444 | int |
2445 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2446 | struct bp_target_info *bp_tgt) | |
2447 | { | |
2448 | if (!may_insert_breakpoints) | |
2449 | { | |
2450 | warning (_("May not insert breakpoints")); | |
2451 | return 1; | |
2452 | } | |
2453 | ||
2454 | return (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt); | |
2455 | } | |
2456 | ||
2457 | int | |
2458 | target_remove_breakpoint (struct gdbarch *gdbarch, | |
2459 | struct bp_target_info *bp_tgt) | |
2460 | { | |
2461 | /* This is kind of a weird case to handle, but the permission might | |
2462 | have been changed after breakpoints were inserted - in which case | |
2463 | we should just take the user literally and assume that any | |
2464 | breakpoints should be left in place. */ | |
2465 | if (!may_insert_breakpoints) | |
2466 | { | |
2467 | warning (_("May not remove breakpoints")); | |
2468 | return 1; | |
2469 | } | |
2470 | ||
2471 | return (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt); | |
2472 | } | |
2473 | ||
c906108c | 2474 | static void |
fba45db2 | 2475 | target_info (char *args, int from_tty) |
c906108c SS |
2476 | { |
2477 | struct target_ops *t; | |
c906108c | 2478 | int has_all_mem = 0; |
c5aa993b | 2479 | |
c906108c | 2480 | if (symfile_objfile != NULL) |
4262abfb JK |
2481 | printf_unfiltered (_("Symbols from \"%s\".\n"), |
2482 | objfile_name (symfile_objfile)); | |
c906108c | 2483 | |
258b763a | 2484 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2485 | { |
c35b1492 | 2486 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2487 | continue; |
2488 | ||
c5aa993b | 2489 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2490 | continue; |
2491 | if (has_all_mem) | |
3e43a32a MS |
2492 | printf_unfiltered (_("\tWhile running this, " |
2493 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2494 | printf_unfiltered ("%s:\n", t->to_longname); |
2495 | (t->to_files_info) (t); | |
c35b1492 | 2496 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2497 | } |
2498 | } | |
2499 | ||
fd79ecee DJ |
2500 | /* This function is called before any new inferior is created, e.g. |
2501 | by running a program, attaching, or connecting to a target. | |
2502 | It cleans up any state from previous invocations which might | |
2503 | change between runs. This is a subset of what target_preopen | |
2504 | resets (things which might change between targets). */ | |
2505 | ||
2506 | void | |
2507 | target_pre_inferior (int from_tty) | |
2508 | { | |
c378eb4e | 2509 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2510 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2511 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2512 | to reproduce: |
2513 | ||
2514 | bash$ ./foo& | |
2515 | [1] 4711 | |
2516 | bash$ ./foo& | |
2517 | [1] 4712 | |
2518 | bash$ gdb ./foo | |
2519 | [...] | |
2520 | (gdb) attach 4711 | |
2521 | (gdb) detach | |
2522 | (gdb) attach 4712 | |
2523 | Cannot access memory at address 0xdeadbeef | |
2524 | */ | |
b9db4ced | 2525 | |
50c71eaf PA |
2526 | /* In some OSs, the shared library list is the same/global/shared |
2527 | across inferiors. If code is shared between processes, so are | |
2528 | memory regions and features. */ | |
f5656ead | 2529 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf PA |
2530 | { |
2531 | no_shared_libraries (NULL, from_tty); | |
2532 | ||
2533 | invalidate_target_mem_regions (); | |
424163ea | 2534 | |
50c71eaf PA |
2535 | target_clear_description (); |
2536 | } | |
8ffcbaaf YQ |
2537 | |
2538 | agent_capability_invalidate (); | |
fd79ecee DJ |
2539 | } |
2540 | ||
b8fa0bfa PA |
2541 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2542 | inferior. */ | |
2543 | ||
2544 | static int | |
2545 | dispose_inferior (struct inferior *inf, void *args) | |
2546 | { | |
2547 | struct thread_info *thread; | |
2548 | ||
2549 | thread = any_thread_of_process (inf->pid); | |
2550 | if (thread) | |
2551 | { | |
2552 | switch_to_thread (thread->ptid); | |
2553 | ||
2554 | /* Core inferiors actually should be detached, not killed. */ | |
2555 | if (target_has_execution) | |
2556 | target_kill (); | |
2557 | else | |
2558 | target_detach (NULL, 0); | |
2559 | } | |
2560 | ||
2561 | return 0; | |
2562 | } | |
2563 | ||
c906108c SS |
2564 | /* This is to be called by the open routine before it does |
2565 | anything. */ | |
2566 | ||
2567 | void | |
fba45db2 | 2568 | target_preopen (int from_tty) |
c906108c | 2569 | { |
c5aa993b | 2570 | dont_repeat (); |
c906108c | 2571 | |
b8fa0bfa | 2572 | if (have_inferiors ()) |
c5aa993b | 2573 | { |
adf40b2e | 2574 | if (!from_tty |
b8fa0bfa PA |
2575 | || !have_live_inferiors () |
2576 | || query (_("A program is being debugged already. Kill it? "))) | |
2577 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2578 | else |
8a3fe4f8 | 2579 | error (_("Program not killed.")); |
c906108c SS |
2580 | } |
2581 | ||
2582 | /* Calling target_kill may remove the target from the stack. But if | |
2583 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2584 | /* Leave the exec target, though. The user may be switching from a |
2585 | live process to a core of the same program. */ | |
460014f5 | 2586 | pop_all_targets_above (file_stratum); |
fd79ecee DJ |
2587 | |
2588 | target_pre_inferior (from_tty); | |
c906108c SS |
2589 | } |
2590 | ||
2591 | /* Detach a target after doing deferred register stores. */ | |
2592 | ||
2593 | void | |
52554a0e | 2594 | target_detach (const char *args, int from_tty) |
c906108c | 2595 | { |
136d6dae VP |
2596 | struct target_ops* t; |
2597 | ||
f5656ead | 2598 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
2599 | /* Don't remove global breakpoints here. They're removed on |
2600 | disconnection from the target. */ | |
2601 | ; | |
2602 | else | |
2603 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2604 | them before detaching. */ | |
dfd4cc63 | 2605 | remove_breakpoints_pid (ptid_get_pid (inferior_ptid)); |
74960c60 | 2606 | |
24291992 PA |
2607 | prepare_for_detach (); |
2608 | ||
136d6dae VP |
2609 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2610 | { | |
2611 | if (t->to_detach != NULL) | |
2612 | { | |
2613 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2614 | if (targetdebug) |
2615 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2616 | args, from_tty); | |
136d6dae VP |
2617 | return; |
2618 | } | |
2619 | } | |
2620 | ||
9b20d036 | 2621 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2622 | } |
2623 | ||
6ad8ae5c DJ |
2624 | void |
2625 | target_disconnect (char *args, int from_tty) | |
2626 | { | |
597320e7 DJ |
2627 | struct target_ops *t; |
2628 | ||
50c71eaf PA |
2629 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2630 | are global across processes, we have to remove them before | |
2631 | disconnecting. */ | |
74960c60 VP |
2632 | remove_breakpoints (); |
2633 | ||
597320e7 DJ |
2634 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2635 | if (t->to_disconnect != NULL) | |
2636 | { | |
2637 | if (targetdebug) | |
2638 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2639 | args, from_tty); | |
2640 | t->to_disconnect (t, args, from_tty); | |
2641 | return; | |
2642 | } | |
2643 | ||
2644 | tcomplain (); | |
6ad8ae5c DJ |
2645 | } |
2646 | ||
117de6a9 | 2647 | ptid_t |
47608cb1 | 2648 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2649 | { |
2650 | struct target_ops *t; | |
2651 | ||
2652 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2653 | { | |
2654 | if (t->to_wait != NULL) | |
2655 | { | |
47608cb1 | 2656 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
2657 | |
2658 | if (targetdebug) | |
2659 | { | |
2660 | char *status_string; | |
09826ec5 | 2661 | char *options_string; |
117de6a9 PA |
2662 | |
2663 | status_string = target_waitstatus_to_string (status); | |
09826ec5 | 2664 | options_string = target_options_to_string (options); |
117de6a9 | 2665 | fprintf_unfiltered (gdb_stdlog, |
09826ec5 PA |
2666 | "target_wait (%d, status, options={%s})" |
2667 | " = %d, %s\n", | |
dfd4cc63 LM |
2668 | ptid_get_pid (ptid), options_string, |
2669 | ptid_get_pid (retval), status_string); | |
117de6a9 | 2670 | xfree (status_string); |
09826ec5 | 2671 | xfree (options_string); |
117de6a9 PA |
2672 | } |
2673 | ||
2674 | return retval; | |
2675 | } | |
2676 | } | |
2677 | ||
2678 | noprocess (); | |
2679 | } | |
2680 | ||
2681 | char * | |
2682 | target_pid_to_str (ptid_t ptid) | |
2683 | { | |
2684 | struct target_ops *t; | |
2685 | ||
2686 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2687 | { | |
2688 | if (t->to_pid_to_str != NULL) | |
2689 | return (*t->to_pid_to_str) (t, ptid); | |
2690 | } | |
2691 | ||
2692 | return normal_pid_to_str (ptid); | |
2693 | } | |
2694 | ||
4694da01 TT |
2695 | char * |
2696 | target_thread_name (struct thread_info *info) | |
2697 | { | |
2698 | struct target_ops *t; | |
2699 | ||
2700 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2701 | { | |
2702 | if (t->to_thread_name != NULL) | |
2703 | return (*t->to_thread_name) (info); | |
2704 | } | |
2705 | ||
2706 | return NULL; | |
2707 | } | |
2708 | ||
e1ac3328 | 2709 | void |
2ea28649 | 2710 | target_resume (ptid_t ptid, int step, enum gdb_signal signal) |
e1ac3328 | 2711 | { |
28439f5e PA |
2712 | struct target_ops *t; |
2713 | ||
4e5d721f | 2714 | target_dcache_invalidate (); |
28439f5e PA |
2715 | |
2716 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2717 | { | |
2718 | if (t->to_resume != NULL) | |
2719 | { | |
2720 | t->to_resume (t, ptid, step, signal); | |
2721 | if (targetdebug) | |
2722 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
dfd4cc63 | 2723 | ptid_get_pid (ptid), |
28439f5e | 2724 | step ? "step" : "continue", |
2ea28649 | 2725 | gdb_signal_to_name (signal)); |
28439f5e | 2726 | |
e66408ed | 2727 | registers_changed_ptid (ptid); |
28439f5e PA |
2728 | set_executing (ptid, 1); |
2729 | set_running (ptid, 1); | |
edb3359d | 2730 | clear_inline_frame_state (ptid); |
28439f5e PA |
2731 | return; |
2732 | } | |
2733 | } | |
2734 | ||
2735 | noprocess (); | |
e1ac3328 | 2736 | } |
2455069d UW |
2737 | |
2738 | void | |
2739 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2740 | { | |
2741 | struct target_ops *t; | |
2742 | ||
2743 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2744 | { | |
2745 | if (t->to_pass_signals != NULL) | |
2746 | { | |
2747 | if (targetdebug) | |
2748 | { | |
2749 | int i; | |
2750 | ||
2751 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2752 | numsigs); | |
2753 | ||
2754 | for (i = 0; i < numsigs; i++) | |
2755 | if (pass_signals[i]) | |
2756 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2757 | gdb_signal_to_name (i)); |
2455069d UW |
2758 | |
2759 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2760 | } | |
2761 | ||
2762 | (*t->to_pass_signals) (numsigs, pass_signals); | |
2763 | return; | |
2764 | } | |
2765 | } | |
2766 | } | |
2767 | ||
9b224c5e PA |
2768 | void |
2769 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2770 | { | |
2771 | struct target_ops *t; | |
2772 | ||
2773 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2774 | { | |
2775 | if (t->to_program_signals != NULL) | |
2776 | { | |
2777 | if (targetdebug) | |
2778 | { | |
2779 | int i; | |
2780 | ||
2781 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2782 | numsigs); | |
2783 | ||
2784 | for (i = 0; i < numsigs; i++) | |
2785 | if (program_signals[i]) | |
2786 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2ea28649 | 2787 | gdb_signal_to_name (i)); |
9b224c5e PA |
2788 | |
2789 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2790 | } | |
2791 | ||
2792 | (*t->to_program_signals) (numsigs, program_signals); | |
2793 | return; | |
2794 | } | |
2795 | } | |
2796 | } | |
2797 | ||
ee057212 DJ |
2798 | /* Look through the list of possible targets for a target that can |
2799 | follow forks. */ | |
2800 | ||
2801 | int | |
07107ca6 | 2802 | target_follow_fork (int follow_child, int detach_fork) |
ee057212 DJ |
2803 | { |
2804 | struct target_ops *t; | |
2805 | ||
2806 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2807 | { | |
2808 | if (t->to_follow_fork != NULL) | |
2809 | { | |
07107ca6 | 2810 | int retval = t->to_follow_fork (t, follow_child, detach_fork); |
5d502164 | 2811 | |
ee057212 | 2812 | if (targetdebug) |
07107ca6 LM |
2813 | fprintf_unfiltered (gdb_stdlog, |
2814 | "target_follow_fork (%d, %d) = %d\n", | |
2815 | follow_child, detach_fork, retval); | |
ee057212 DJ |
2816 | return retval; |
2817 | } | |
2818 | } | |
2819 | ||
2820 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2821 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2822 | _("could not find a target to follow fork")); |
ee057212 DJ |
2823 | } |
2824 | ||
136d6dae VP |
2825 | void |
2826 | target_mourn_inferior (void) | |
2827 | { | |
2828 | struct target_ops *t; | |
5d502164 | 2829 | |
136d6dae VP |
2830 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2831 | { | |
2832 | if (t->to_mourn_inferior != NULL) | |
2833 | { | |
2834 | t->to_mourn_inferior (t); | |
947b8855 PA |
2835 | if (targetdebug) |
2836 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2837 | |
2838 | /* We no longer need to keep handles on any of the object files. | |
2839 | Make sure to release them to avoid unnecessarily locking any | |
2840 | of them while we're not actually debugging. */ | |
2841 | bfd_cache_close_all (); | |
2842 | ||
136d6dae VP |
2843 | return; |
2844 | } | |
2845 | } | |
2846 | ||
2847 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2848 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2849 | } |
2850 | ||
424163ea DJ |
2851 | /* Look for a target which can describe architectural features, starting |
2852 | from TARGET. If we find one, return its description. */ | |
2853 | ||
2854 | const struct target_desc * | |
2855 | target_read_description (struct target_ops *target) | |
2856 | { | |
2857 | struct target_ops *t; | |
2858 | ||
2859 | for (t = target; t != NULL; t = t->beneath) | |
2860 | if (t->to_read_description != NULL) | |
2861 | { | |
2862 | const struct target_desc *tdesc; | |
2863 | ||
2864 | tdesc = t->to_read_description (t); | |
2865 | if (tdesc) | |
2866 | return tdesc; | |
2867 | } | |
2868 | ||
2869 | return NULL; | |
2870 | } | |
2871 | ||
08388c79 DE |
2872 | /* The default implementation of to_search_memory. |
2873 | This implements a basic search of memory, reading target memory and | |
2874 | performing the search here (as opposed to performing the search in on the | |
2875 | target side with, for example, gdbserver). */ | |
2876 | ||
2877 | int | |
2878 | simple_search_memory (struct target_ops *ops, | |
2879 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2880 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2881 | CORE_ADDR *found_addrp) | |
2882 | { | |
2883 | /* NOTE: also defined in find.c testcase. */ | |
2884 | #define SEARCH_CHUNK_SIZE 16000 | |
2885 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2886 | /* Buffer to hold memory contents for searching. */ | |
2887 | gdb_byte *search_buf; | |
2888 | unsigned search_buf_size; | |
2889 | struct cleanup *old_cleanups; | |
2890 | ||
2891 | search_buf_size = chunk_size + pattern_len - 1; | |
2892 | ||
2893 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2894 | if (search_space_len < search_buf_size) | |
2895 | search_buf_size = search_space_len; | |
2896 | ||
2897 | search_buf = malloc (search_buf_size); | |
2898 | if (search_buf == NULL) | |
5e1471f5 | 2899 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2900 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2901 | ||
2902 | /* Prime the search buffer. */ | |
2903 | ||
2904 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2905 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2906 | { | |
b3dc46ff AB |
2907 | warning (_("Unable to access %s bytes of target " |
2908 | "memory at %s, halting search."), | |
2909 | pulongest (search_buf_size), hex_string (start_addr)); | |
08388c79 DE |
2910 | do_cleanups (old_cleanups); |
2911 | return -1; | |
2912 | } | |
2913 | ||
2914 | /* Perform the search. | |
2915 | ||
2916 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2917 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2918 | read in another N bytes. */ | |
2919 | ||
2920 | while (search_space_len >= pattern_len) | |
2921 | { | |
2922 | gdb_byte *found_ptr; | |
2923 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2924 | ||
2925 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2926 | pattern, pattern_len); | |
2927 | ||
2928 | if (found_ptr != NULL) | |
2929 | { | |
2930 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2931 | |
08388c79 DE |
2932 | *found_addrp = found_addr; |
2933 | do_cleanups (old_cleanups); | |
2934 | return 1; | |
2935 | } | |
2936 | ||
2937 | /* Not found in this chunk, skip to next chunk. */ | |
2938 | ||
2939 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2940 | if (search_space_len >= chunk_size) | |
2941 | search_space_len -= chunk_size; | |
2942 | else | |
2943 | search_space_len = 0; | |
2944 | ||
2945 | if (search_space_len >= pattern_len) | |
2946 | { | |
2947 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2948 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2949 | int nr_to_read; |
2950 | ||
2951 | /* Copy the trailing part of the previous iteration to the front | |
2952 | of the buffer for the next iteration. */ | |
2953 | gdb_assert (keep_len == pattern_len - 1); | |
2954 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2955 | ||
2956 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2957 | ||
2958 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2959 | search_buf + keep_len, read_addr, | |
2960 | nr_to_read) != nr_to_read) | |
2961 | { | |
b3dc46ff | 2962 | warning (_("Unable to access %s bytes of target " |
9b20d036 | 2963 | "memory at %s, halting search."), |
b3dc46ff | 2964 | plongest (nr_to_read), |
08388c79 DE |
2965 | hex_string (read_addr)); |
2966 | do_cleanups (old_cleanups); | |
2967 | return -1; | |
2968 | } | |
2969 | ||
2970 | start_addr += chunk_size; | |
2971 | } | |
2972 | } | |
2973 | ||
2974 | /* Not found. */ | |
2975 | ||
2976 | do_cleanups (old_cleanups); | |
2977 | return 0; | |
2978 | } | |
2979 | ||
2980 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2981 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2982 | ||
2983 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2984 | requiring halting of the search (e.g. memory read error). | |
2985 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2986 | ||
2987 | int | |
2988 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2989 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2990 | CORE_ADDR *found_addrp) | |
2991 | { | |
2992 | struct target_ops *t; | |
2993 | int found; | |
2994 | ||
2995 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2996 | so we have to scan the target stack and handle targetdebug | |
2997 | ourselves. */ | |
2998 | ||
2999 | if (targetdebug) | |
3000 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
3001 | hex_string (start_addr)); | |
3002 | ||
3003 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3004 | if (t->to_search_memory != NULL) | |
3005 | break; | |
3006 | ||
3007 | if (t != NULL) | |
3008 | { | |
3009 | found = t->to_search_memory (t, start_addr, search_space_len, | |
3010 | pattern, pattern_len, found_addrp); | |
3011 | } | |
3012 | else | |
3013 | { | |
3014 | /* If a special version of to_search_memory isn't available, use the | |
3015 | simple version. */ | |
c35b1492 | 3016 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
3017 | start_addr, search_space_len, |
3018 | pattern, pattern_len, found_addrp); | |
3019 | } | |
3020 | ||
3021 | if (targetdebug) | |
3022 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
3023 | ||
3024 | return found; | |
3025 | } | |
3026 | ||
8edfe269 DJ |
3027 | /* Look through the currently pushed targets. If none of them will |
3028 | be able to restart the currently running process, issue an error | |
3029 | message. */ | |
3030 | ||
3031 | void | |
3032 | target_require_runnable (void) | |
3033 | { | |
3034 | struct target_ops *t; | |
3035 | ||
3036 | for (t = target_stack; t != NULL; t = t->beneath) | |
3037 | { | |
3038 | /* If this target knows how to create a new program, then | |
3039 | assume we will still be able to after killing the current | |
3040 | one. Either killing and mourning will not pop T, or else | |
3041 | find_default_run_target will find it again. */ | |
3042 | if (t->to_create_inferior != NULL) | |
3043 | return; | |
3044 | ||
3045 | /* Do not worry about thread_stratum targets that can not | |
3046 | create inferiors. Assume they will be pushed again if | |
3047 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3048 | if (t->to_stratum == thread_stratum |
3049 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3050 | continue; |
3051 | ||
3e43a32a MS |
3052 | error (_("The \"%s\" target does not support \"run\". " |
3053 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3054 | t->to_shortname); |
3055 | } | |
3056 | ||
3057 | /* This function is only called if the target is running. In that | |
3058 | case there should have been a process_stratum target and it | |
c378eb4e | 3059 | should either know how to create inferiors, or not... */ |
9b20d036 | 3060 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3061 | } |
3062 | ||
c906108c SS |
3063 | /* Look through the list of possible targets for a target that can |
3064 | execute a run or attach command without any other data. This is | |
3065 | used to locate the default process stratum. | |
3066 | ||
5f667f2d PA |
3067 | If DO_MESG is not NULL, the result is always valid (error() is |
3068 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3069 | |
3070 | static struct target_ops * | |
fba45db2 | 3071 | find_default_run_target (char *do_mesg) |
c906108c SS |
3072 | { |
3073 | struct target_ops **t; | |
3074 | struct target_ops *runable = NULL; | |
3075 | int count; | |
3076 | ||
3077 | count = 0; | |
3078 | ||
3079 | for (t = target_structs; t < target_structs + target_struct_size; | |
3080 | ++t) | |
3081 | { | |
c5aa993b | 3082 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3083 | { |
3084 | runable = *t; | |
3085 | ++count; | |
3086 | } | |
3087 | } | |
3088 | ||
3089 | if (count != 1) | |
5f667f2d PA |
3090 | { |
3091 | if (do_mesg) | |
3092 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3093 | else | |
3094 | return NULL; | |
3095 | } | |
c906108c SS |
3096 | |
3097 | return runable; | |
3098 | } | |
3099 | ||
3100 | void | |
136d6dae | 3101 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3102 | { |
3103 | struct target_ops *t; | |
3104 | ||
c5aa993b | 3105 | t = find_default_run_target ("attach"); |
136d6dae | 3106 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3107 | return; |
3108 | } | |
3109 | ||
c906108c | 3110 | void |
136d6dae VP |
3111 | find_default_create_inferior (struct target_ops *ops, |
3112 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3113 | int from_tty) |
c906108c SS |
3114 | { |
3115 | struct target_ops *t; | |
3116 | ||
c5aa993b | 3117 | t = find_default_run_target ("run"); |
136d6dae | 3118 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3119 | return; |
3120 | } | |
3121 | ||
2c0b251b | 3122 | static int |
b84876c2 PA |
3123 | find_default_can_async_p (void) |
3124 | { | |
3125 | struct target_ops *t; | |
3126 | ||
5f667f2d PA |
3127 | /* This may be called before the target is pushed on the stack; |
3128 | look for the default process stratum. If there's none, gdb isn't | |
3129 | configured with a native debugger, and target remote isn't | |
3130 | connected yet. */ | |
3131 | t = find_default_run_target (NULL); | |
3132 | if (t && t->to_can_async_p) | |
b84876c2 PA |
3133 | return (t->to_can_async_p) (); |
3134 | return 0; | |
3135 | } | |
3136 | ||
2c0b251b | 3137 | static int |
b84876c2 PA |
3138 | find_default_is_async_p (void) |
3139 | { | |
3140 | struct target_ops *t; | |
3141 | ||
5f667f2d PA |
3142 | /* This may be called before the target is pushed on the stack; |
3143 | look for the default process stratum. If there's none, gdb isn't | |
3144 | configured with a native debugger, and target remote isn't | |
3145 | connected yet. */ | |
3146 | t = find_default_run_target (NULL); | |
3147 | if (t && t->to_is_async_p) | |
b84876c2 PA |
3148 | return (t->to_is_async_p) (); |
3149 | return 0; | |
3150 | } | |
3151 | ||
2c0b251b | 3152 | static int |
9908b566 VP |
3153 | find_default_supports_non_stop (void) |
3154 | { | |
3155 | struct target_ops *t; | |
3156 | ||
3157 | t = find_default_run_target (NULL); | |
3158 | if (t && t->to_supports_non_stop) | |
3159 | return (t->to_supports_non_stop) (); | |
3160 | return 0; | |
3161 | } | |
3162 | ||
3163 | int | |
2c0b251b | 3164 | target_supports_non_stop (void) |
9908b566 VP |
3165 | { |
3166 | struct target_ops *t; | |
5d502164 | 3167 | |
9908b566 VP |
3168 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3169 | if (t->to_supports_non_stop) | |
3170 | return t->to_supports_non_stop (); | |
3171 | ||
3172 | return 0; | |
3173 | } | |
3174 | ||
145b16a9 UW |
3175 | /* Implement the "info proc" command. */ |
3176 | ||
451b7c33 | 3177 | int |
145b16a9 UW |
3178 | target_info_proc (char *args, enum info_proc_what what) |
3179 | { | |
3180 | struct target_ops *t; | |
3181 | ||
3182 | /* If we're already connected to something that can get us OS | |
3183 | related data, use it. Otherwise, try using the native | |
3184 | target. */ | |
3185 | if (current_target.to_stratum >= process_stratum) | |
3186 | t = current_target.beneath; | |
3187 | else | |
3188 | t = find_default_run_target (NULL); | |
3189 | ||
3190 | for (; t != NULL; t = t->beneath) | |
3191 | { | |
3192 | if (t->to_info_proc != NULL) | |
3193 | { | |
3194 | t->to_info_proc (t, args, what); | |
3195 | ||
3196 | if (targetdebug) | |
3197 | fprintf_unfiltered (gdb_stdlog, | |
3198 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3199 | ||
451b7c33 | 3200 | return 1; |
145b16a9 UW |
3201 | } |
3202 | } | |
3203 | ||
451b7c33 | 3204 | return 0; |
145b16a9 UW |
3205 | } |
3206 | ||
03583c20 UW |
3207 | static int |
3208 | find_default_supports_disable_randomization (void) | |
3209 | { | |
3210 | struct target_ops *t; | |
3211 | ||
3212 | t = find_default_run_target (NULL); | |
3213 | if (t && t->to_supports_disable_randomization) | |
3214 | return (t->to_supports_disable_randomization) (); | |
3215 | return 0; | |
3216 | } | |
3217 | ||
3218 | int | |
3219 | target_supports_disable_randomization (void) | |
3220 | { | |
3221 | struct target_ops *t; | |
3222 | ||
3223 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3224 | if (t->to_supports_disable_randomization) | |
3225 | return t->to_supports_disable_randomization (); | |
3226 | ||
3227 | return 0; | |
3228 | } | |
9908b566 | 3229 | |
07e059b5 VP |
3230 | char * |
3231 | target_get_osdata (const char *type) | |
3232 | { | |
07e059b5 VP |
3233 | struct target_ops *t; |
3234 | ||
739ef7fb PA |
3235 | /* If we're already connected to something that can get us OS |
3236 | related data, use it. Otherwise, try using the native | |
3237 | target. */ | |
3238 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3239 | t = current_target.beneath; |
739ef7fb PA |
3240 | else |
3241 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3242 | |
3243 | if (!t) | |
3244 | return NULL; | |
3245 | ||
6d097e65 | 3246 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3247 | } |
3248 | ||
6c95b8df PA |
3249 | /* Determine the current address space of thread PTID. */ |
3250 | ||
3251 | struct address_space * | |
3252 | target_thread_address_space (ptid_t ptid) | |
3253 | { | |
c0694254 | 3254 | struct address_space *aspace; |
6c95b8df | 3255 | struct inferior *inf; |
c0694254 PA |
3256 | struct target_ops *t; |
3257 | ||
3258 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3259 | { | |
3260 | if (t->to_thread_address_space != NULL) | |
3261 | { | |
3262 | aspace = t->to_thread_address_space (t, ptid); | |
3263 | gdb_assert (aspace); | |
6c95b8df | 3264 | |
c0694254 PA |
3265 | if (targetdebug) |
3266 | fprintf_unfiltered (gdb_stdlog, | |
3267 | "target_thread_address_space (%s) = %d\n", | |
3268 | target_pid_to_str (ptid), | |
3269 | address_space_num (aspace)); | |
3270 | return aspace; | |
3271 | } | |
3272 | } | |
6c95b8df PA |
3273 | |
3274 | /* Fall-back to the "main" address space of the inferior. */ | |
3275 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3276 | ||
3277 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3278 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3279 | _("Can't determine the current " |
3280 | "address space of thread %s\n"), | |
6c95b8df PA |
3281 | target_pid_to_str (ptid)); |
3282 | ||
3283 | return inf->aspace; | |
3284 | } | |
3285 | ||
7313baad UW |
3286 | |
3287 | /* Target file operations. */ | |
3288 | ||
3289 | static struct target_ops * | |
3290 | default_fileio_target (void) | |
3291 | { | |
3292 | /* If we're already connected to something that can perform | |
3293 | file I/O, use it. Otherwise, try using the native target. */ | |
3294 | if (current_target.to_stratum >= process_stratum) | |
3295 | return current_target.beneath; | |
3296 | else | |
3297 | return find_default_run_target ("file I/O"); | |
3298 | } | |
3299 | ||
3300 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3301 | target file descriptor, or -1 if an error occurs (and set | |
3302 | *TARGET_ERRNO). */ | |
3303 | int | |
3304 | target_fileio_open (const char *filename, int flags, int mode, | |
3305 | int *target_errno) | |
3306 | { | |
3307 | struct target_ops *t; | |
3308 | ||
3309 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3310 | { | |
3311 | if (t->to_fileio_open != NULL) | |
3312 | { | |
3313 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3314 | ||
3315 | if (targetdebug) | |
3316 | fprintf_unfiltered (gdb_stdlog, | |
3317 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3318 | filename, flags, mode, | |
3319 | fd, fd != -1 ? 0 : *target_errno); | |
3320 | return fd; | |
3321 | } | |
3322 | } | |
3323 | ||
3324 | *target_errno = FILEIO_ENOSYS; | |
3325 | return -1; | |
3326 | } | |
3327 | ||
3328 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3329 | Return the number of bytes written, or -1 if an error occurs | |
3330 | (and set *TARGET_ERRNO). */ | |
3331 | int | |
3332 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3333 | ULONGEST offset, int *target_errno) | |
3334 | { | |
3335 | struct target_ops *t; | |
3336 | ||
3337 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3338 | { | |
3339 | if (t->to_fileio_pwrite != NULL) | |
3340 | { | |
3341 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3342 | target_errno); | |
3343 | ||
3344 | if (targetdebug) | |
3345 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3346 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3347 | "= %d (%d)\n", |
a71b5a38 | 3348 | fd, len, pulongest (offset), |
7313baad UW |
3349 | ret, ret != -1 ? 0 : *target_errno); |
3350 | return ret; | |
3351 | } | |
3352 | } | |
3353 | ||
3354 | *target_errno = FILEIO_ENOSYS; | |
3355 | return -1; | |
3356 | } | |
3357 | ||
3358 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3359 | Return the number of bytes read, or -1 if an error occurs | |
3360 | (and set *TARGET_ERRNO). */ | |
3361 | int | |
3362 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3363 | ULONGEST offset, int *target_errno) | |
3364 | { | |
3365 | struct target_ops *t; | |
3366 | ||
3367 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3368 | { | |
3369 | if (t->to_fileio_pread != NULL) | |
3370 | { | |
3371 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3372 | target_errno); | |
3373 | ||
3374 | if (targetdebug) | |
3375 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3376 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3377 | "= %d (%d)\n", |
a71b5a38 | 3378 | fd, len, pulongest (offset), |
7313baad UW |
3379 | ret, ret != -1 ? 0 : *target_errno); |
3380 | return ret; | |
3381 | } | |
3382 | } | |
3383 | ||
3384 | *target_errno = FILEIO_ENOSYS; | |
3385 | return -1; | |
3386 | } | |
3387 | ||
3388 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3389 | (and set *TARGET_ERRNO). */ | |
3390 | int | |
3391 | target_fileio_close (int fd, int *target_errno) | |
3392 | { | |
3393 | struct target_ops *t; | |
3394 | ||
3395 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3396 | { | |
3397 | if (t->to_fileio_close != NULL) | |
3398 | { | |
3399 | int ret = t->to_fileio_close (fd, target_errno); | |
3400 | ||
3401 | if (targetdebug) | |
3402 | fprintf_unfiltered (gdb_stdlog, | |
3403 | "target_fileio_close (%d) = %d (%d)\n", | |
3404 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3405 | return ret; | |
3406 | } | |
3407 | } | |
3408 | ||
3409 | *target_errno = FILEIO_ENOSYS; | |
3410 | return -1; | |
3411 | } | |
3412 | ||
3413 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3414 | occurs (and set *TARGET_ERRNO). */ | |
3415 | int | |
3416 | target_fileio_unlink (const char *filename, int *target_errno) | |
3417 | { | |
3418 | struct target_ops *t; | |
3419 | ||
3420 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3421 | { | |
3422 | if (t->to_fileio_unlink != NULL) | |
3423 | { | |
3424 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3425 | ||
3426 | if (targetdebug) | |
3427 | fprintf_unfiltered (gdb_stdlog, | |
3428 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3429 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3430 | return ret; | |
3431 | } | |
3432 | } | |
3433 | ||
3434 | *target_errno = FILEIO_ENOSYS; | |
3435 | return -1; | |
3436 | } | |
3437 | ||
b9e7b9c3 UW |
3438 | /* Read value of symbolic link FILENAME on the target. Return a |
3439 | null-terminated string allocated via xmalloc, or NULL if an error | |
3440 | occurs (and set *TARGET_ERRNO). */ | |
3441 | char * | |
3442 | target_fileio_readlink (const char *filename, int *target_errno) | |
3443 | { | |
3444 | struct target_ops *t; | |
3445 | ||
3446 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3447 | { | |
3448 | if (t->to_fileio_readlink != NULL) | |
3449 | { | |
3450 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3451 | ||
3452 | if (targetdebug) | |
3453 | fprintf_unfiltered (gdb_stdlog, | |
3454 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3455 | filename, ret? ret : "(nil)", | |
3456 | ret? 0 : *target_errno); | |
3457 | return ret; | |
3458 | } | |
3459 | } | |
3460 | ||
3461 | *target_errno = FILEIO_ENOSYS; | |
3462 | return NULL; | |
3463 | } | |
3464 | ||
7313baad UW |
3465 | static void |
3466 | target_fileio_close_cleanup (void *opaque) | |
3467 | { | |
3468 | int fd = *(int *) opaque; | |
3469 | int target_errno; | |
3470 | ||
3471 | target_fileio_close (fd, &target_errno); | |
3472 | } | |
3473 | ||
3474 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3475 | return the size of the transferred data. PADDING additional bytes are | |
3476 | available in *BUF_P. This is a helper function for | |
3477 | target_fileio_read_alloc; see the declaration of that function for more | |
3478 | information. */ | |
3479 | ||
3480 | static LONGEST | |
3481 | target_fileio_read_alloc_1 (const char *filename, | |
3482 | gdb_byte **buf_p, int padding) | |
3483 | { | |
3484 | struct cleanup *close_cleanup; | |
3485 | size_t buf_alloc, buf_pos; | |
3486 | gdb_byte *buf; | |
3487 | LONGEST n; | |
3488 | int fd; | |
3489 | int target_errno; | |
3490 | ||
3491 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3492 | if (fd == -1) | |
3493 | return -1; | |
3494 | ||
3495 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3496 | ||
3497 | /* Start by reading up to 4K at a time. The target will throttle | |
3498 | this number down if necessary. */ | |
3499 | buf_alloc = 4096; | |
3500 | buf = xmalloc (buf_alloc); | |
3501 | buf_pos = 0; | |
3502 | while (1) | |
3503 | { | |
3504 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3505 | buf_alloc - buf_pos - padding, buf_pos, | |
3506 | &target_errno); | |
3507 | if (n < 0) | |
3508 | { | |
3509 | /* An error occurred. */ | |
3510 | do_cleanups (close_cleanup); | |
3511 | xfree (buf); | |
3512 | return -1; | |
3513 | } | |
3514 | else if (n == 0) | |
3515 | { | |
3516 | /* Read all there was. */ | |
3517 | do_cleanups (close_cleanup); | |
3518 | if (buf_pos == 0) | |
3519 | xfree (buf); | |
3520 | else | |
3521 | *buf_p = buf; | |
3522 | return buf_pos; | |
3523 | } | |
3524 | ||
3525 | buf_pos += n; | |
3526 | ||
3527 | /* If the buffer is filling up, expand it. */ | |
3528 | if (buf_alloc < buf_pos * 2) | |
3529 | { | |
3530 | buf_alloc *= 2; | |
3531 | buf = xrealloc (buf, buf_alloc); | |
3532 | } | |
3533 | ||
3534 | QUIT; | |
3535 | } | |
3536 | } | |
3537 | ||
3538 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3539 | the size of the transferred data. See the declaration in "target.h" | |
3540 | function for more information about the return value. */ | |
3541 | ||
3542 | LONGEST | |
3543 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3544 | { | |
3545 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3546 | } | |
3547 | ||
3548 | /* Read target file FILENAME. The result is NUL-terminated and | |
3549 | returned as a string, allocated using xmalloc. If an error occurs | |
3550 | or the transfer is unsupported, NULL is returned. Empty objects | |
3551 | are returned as allocated but empty strings. A warning is issued | |
3552 | if the result contains any embedded NUL bytes. */ | |
3553 | ||
3554 | char * | |
3555 | target_fileio_read_stralloc (const char *filename) | |
3556 | { | |
39086a0e PA |
3557 | gdb_byte *buffer; |
3558 | char *bufstr; | |
7313baad UW |
3559 | LONGEST i, transferred; |
3560 | ||
39086a0e PA |
3561 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); |
3562 | bufstr = (char *) buffer; | |
7313baad UW |
3563 | |
3564 | if (transferred < 0) | |
3565 | return NULL; | |
3566 | ||
3567 | if (transferred == 0) | |
3568 | return xstrdup (""); | |
3569 | ||
39086a0e | 3570 | bufstr[transferred] = 0; |
7313baad UW |
3571 | |
3572 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
39086a0e PA |
3573 | for (i = strlen (bufstr); i < transferred; i++) |
3574 | if (bufstr[i] != 0) | |
7313baad UW |
3575 | { |
3576 | warning (_("target file %s " | |
3577 | "contained unexpected null characters"), | |
3578 | filename); | |
3579 | break; | |
3580 | } | |
3581 | ||
39086a0e | 3582 | return bufstr; |
7313baad UW |
3583 | } |
3584 | ||
3585 | ||
e0d24f8d WZ |
3586 | static int |
3587 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3588 | { | |
f5656ead | 3589 | return (len <= gdbarch_ptr_bit (target_gdbarch ()) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3590 | } |
3591 | ||
5009afc5 AS |
3592 | static int |
3593 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3594 | CORE_ADDR addr, | |
3595 | CORE_ADDR start, int length) | |
3596 | { | |
3597 | return addr >= start && addr < start + length; | |
3598 | } | |
3599 | ||
c2250ad1 UW |
3600 | static struct gdbarch * |
3601 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3602 | { | |
f5656ead | 3603 | return target_gdbarch (); |
c2250ad1 UW |
3604 | } |
3605 | ||
c906108c | 3606 | static int |
fba45db2 | 3607 | return_zero (void) |
c906108c SS |
3608 | { |
3609 | return 0; | |
3610 | } | |
3611 | ||
3612 | static int | |
fba45db2 | 3613 | return_one (void) |
c906108c SS |
3614 | { |
3615 | return 1; | |
3616 | } | |
3617 | ||
ccaa32c7 GS |
3618 | static int |
3619 | return_minus_one (void) | |
3620 | { | |
3621 | return -1; | |
3622 | } | |
3623 | ||
ed9a39eb JM |
3624 | /* |
3625 | * Find the next target down the stack from the specified target. | |
3626 | */ | |
3627 | ||
3628 | struct target_ops * | |
fba45db2 | 3629 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3630 | { |
258b763a | 3631 | return t->beneath; |
ed9a39eb JM |
3632 | } |
3633 | ||
c906108c SS |
3634 | \f |
3635 | /* The inferior process has died. Long live the inferior! */ | |
3636 | ||
3637 | void | |
fba45db2 | 3638 | generic_mourn_inferior (void) |
c906108c | 3639 | { |
7f9f62ba | 3640 | ptid_t ptid; |
c906108c | 3641 | |
7f9f62ba | 3642 | ptid = inferior_ptid; |
39f77062 | 3643 | inferior_ptid = null_ptid; |
7f9f62ba | 3644 | |
f59f708a PA |
3645 | /* Mark breakpoints uninserted in case something tries to delete a |
3646 | breakpoint while we delete the inferior's threads (which would | |
3647 | fail, since the inferior is long gone). */ | |
3648 | mark_breakpoints_out (); | |
3649 | ||
7f9f62ba PA |
3650 | if (!ptid_equal (ptid, null_ptid)) |
3651 | { | |
3652 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3653 | exit_inferior (pid); |
7f9f62ba PA |
3654 | } |
3655 | ||
f59f708a PA |
3656 | /* Note this wipes step-resume breakpoints, so needs to be done |
3657 | after exit_inferior, which ends up referencing the step-resume | |
3658 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3659 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3660 | |
c906108c SS |
3661 | registers_changed (); |
3662 | ||
c906108c SS |
3663 | reopen_exec_file (); |
3664 | reinit_frame_cache (); | |
3665 | ||
9a4105ab AC |
3666 | if (deprecated_detach_hook) |
3667 | deprecated_detach_hook (); | |
c906108c SS |
3668 | } |
3669 | \f | |
fd0a2a6f MK |
3670 | /* Convert a normal process ID to a string. Returns the string in a |
3671 | static buffer. */ | |
c906108c SS |
3672 | |
3673 | char * | |
39f77062 | 3674 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3675 | { |
fd0a2a6f | 3676 | static char buf[32]; |
c906108c | 3677 | |
5fff8fc0 | 3678 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3679 | return buf; |
3680 | } | |
3681 | ||
2c0b251b | 3682 | static char * |
117de6a9 PA |
3683 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3684 | { | |
3685 | return normal_pid_to_str (ptid); | |
3686 | } | |
3687 | ||
9b4eba8e HZ |
3688 | /* Error-catcher for target_find_memory_regions. */ |
3689 | static int | |
b8edc417 | 3690 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3691 | { |
9b4eba8e | 3692 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3693 | return 0; |
3694 | } | |
3695 | ||
9b4eba8e HZ |
3696 | /* Error-catcher for target_make_corefile_notes. */ |
3697 | static char * | |
3698 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3699 | { |
9b4eba8e | 3700 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3701 | return NULL; |
3702 | } | |
3703 | ||
6b04bdb7 MS |
3704 | /* Error-catcher for target_get_bookmark. */ |
3705 | static gdb_byte * | |
3706 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3707 | { | |
3708 | tcomplain (); | |
3709 | return NULL; | |
3710 | } | |
3711 | ||
3712 | /* Error-catcher for target_goto_bookmark. */ | |
3713 | static void | |
3714 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3715 | { | |
3716 | tcomplain (); | |
3717 | } | |
3718 | ||
c906108c SS |
3719 | /* Set up the handful of non-empty slots needed by the dummy target |
3720 | vector. */ | |
3721 | ||
3722 | static void | |
fba45db2 | 3723 | init_dummy_target (void) |
c906108c SS |
3724 | { |
3725 | dummy_target.to_shortname = "None"; | |
3726 | dummy_target.to_longname = "None"; | |
3727 | dummy_target.to_doc = ""; | |
3728 | dummy_target.to_attach = find_default_attach; | |
136d6dae | 3729 | dummy_target.to_detach = |
52554a0e | 3730 | (void (*)(struct target_ops *, const char *, int))target_ignore; |
c906108c | 3731 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
3732 | dummy_target.to_can_async_p = find_default_can_async_p; |
3733 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 3734 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3735 | dummy_target.to_supports_disable_randomization |
3736 | = find_default_supports_disable_randomization; | |
117de6a9 | 3737 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3738 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3739 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3740 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3741 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3742 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
0b603eba | 3743 | dummy_target.to_xfer_partial = default_xfer_partial; |
c35b1492 PA |
3744 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3745 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3746 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3747 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3748 | dummy_target.to_has_execution |
3749 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
7155de5a HZ |
3750 | dummy_target.to_stopped_by_watchpoint = return_zero; |
3751 | dummy_target.to_stopped_data_address = | |
3752 | (int (*) (struct target_ops *, CORE_ADDR *)) return_zero; | |
c906108c SS |
3753 | dummy_target.to_magic = OPS_MAGIC; |
3754 | } | |
c906108c | 3755 | \f |
c906108c | 3756 | static void |
fba45db2 | 3757 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3758 | { |
3759 | debug_target.to_open (args, from_tty); | |
3760 | ||
96baa820 | 3761 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3762 | } |
3763 | ||
f1c07ab0 | 3764 | void |
460014f5 | 3765 | target_close (struct target_ops *targ) |
f1c07ab0 | 3766 | { |
7fdc1521 TT |
3767 | gdb_assert (!target_is_pushed (targ)); |
3768 | ||
f1c07ab0 | 3769 | if (targ->to_xclose != NULL) |
460014f5 | 3770 | targ->to_xclose (targ); |
f1c07ab0 | 3771 | else if (targ->to_close != NULL) |
460014f5 | 3772 | targ->to_close (); |
947b8855 PA |
3773 | |
3774 | if (targetdebug) | |
460014f5 | 3775 | fprintf_unfiltered (gdb_stdlog, "target_close ()\n"); |
f1c07ab0 AC |
3776 | } |
3777 | ||
136d6dae VP |
3778 | void |
3779 | target_attach (char *args, int from_tty) | |
3780 | { | |
3781 | struct target_ops *t; | |
5d502164 | 3782 | |
136d6dae VP |
3783 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3784 | { | |
3785 | if (t->to_attach != NULL) | |
3786 | { | |
3787 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3788 | if (targetdebug) |
3789 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3790 | args, from_tty); | |
136d6dae VP |
3791 | return; |
3792 | } | |
3793 | } | |
3794 | ||
3795 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3796 | _("could not find a target to attach")); |
136d6dae VP |
3797 | } |
3798 | ||
28439f5e PA |
3799 | int |
3800 | target_thread_alive (ptid_t ptid) | |
c906108c | 3801 | { |
28439f5e | 3802 | struct target_ops *t; |
5d502164 | 3803 | |
28439f5e PA |
3804 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3805 | { | |
3806 | if (t->to_thread_alive != NULL) | |
3807 | { | |
3808 | int retval; | |
c906108c | 3809 | |
28439f5e PA |
3810 | retval = t->to_thread_alive (t, ptid); |
3811 | if (targetdebug) | |
3812 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
dfd4cc63 | 3813 | ptid_get_pid (ptid), retval); |
28439f5e PA |
3814 | |
3815 | return retval; | |
3816 | } | |
3817 | } | |
3818 | ||
3819 | return 0; | |
3820 | } | |
3821 | ||
3822 | void | |
3823 | target_find_new_threads (void) | |
3824 | { | |
3825 | struct target_ops *t; | |
5d502164 | 3826 | |
28439f5e PA |
3827 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3828 | { | |
3829 | if (t->to_find_new_threads != NULL) | |
3830 | { | |
3831 | t->to_find_new_threads (t); | |
3832 | if (targetdebug) | |
3833 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3834 | ||
3835 | return; | |
3836 | } | |
3837 | } | |
c906108c SS |
3838 | } |
3839 | ||
d914c394 SS |
3840 | void |
3841 | target_stop (ptid_t ptid) | |
3842 | { | |
3843 | if (!may_stop) | |
3844 | { | |
3845 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3846 | return; | |
3847 | } | |
3848 | ||
3849 | (*current_target.to_stop) (ptid); | |
3850 | } | |
3851 | ||
c906108c | 3852 | static void |
28439f5e | 3853 | debug_to_post_attach (int pid) |
c906108c | 3854 | { |
28439f5e | 3855 | debug_target.to_post_attach (pid); |
c906108c | 3856 | |
28439f5e | 3857 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3858 | } |
3859 | ||
09826ec5 PA |
3860 | /* Concatenate ELEM to LIST, a comma separate list, and return the |
3861 | result. The LIST incoming argument is released. */ | |
3862 | ||
3863 | static char * | |
3864 | str_comma_list_concat_elem (char *list, const char *elem) | |
3865 | { | |
3866 | if (list == NULL) | |
3867 | return xstrdup (elem); | |
3868 | else | |
3869 | return reconcat (list, list, ", ", elem, (char *) NULL); | |
3870 | } | |
3871 | ||
3872 | /* Helper for target_options_to_string. If OPT is present in | |
3873 | TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET. | |
3874 | Returns the new resulting string. OPT is removed from | |
3875 | TARGET_OPTIONS. */ | |
3876 | ||
3877 | static char * | |
3878 | do_option (int *target_options, char *ret, | |
3879 | int opt, char *opt_str) | |
3880 | { | |
3881 | if ((*target_options & opt) != 0) | |
3882 | { | |
3883 | ret = str_comma_list_concat_elem (ret, opt_str); | |
3884 | *target_options &= ~opt; | |
3885 | } | |
3886 | ||
3887 | return ret; | |
3888 | } | |
3889 | ||
3890 | char * | |
3891 | target_options_to_string (int target_options) | |
3892 | { | |
3893 | char *ret = NULL; | |
3894 | ||
3895 | #define DO_TARG_OPTION(OPT) \ | |
3896 | ret = do_option (&target_options, ret, OPT, #OPT) | |
3897 | ||
3898 | DO_TARG_OPTION (TARGET_WNOHANG); | |
3899 | ||
3900 | if (target_options != 0) | |
3901 | ret = str_comma_list_concat_elem (ret, "unknown???"); | |
3902 | ||
3903 | if (ret == NULL) | |
3904 | ret = xstrdup (""); | |
3905 | return ret; | |
3906 | } | |
3907 | ||
bf0c5130 | 3908 | static void |
56be3814 UW |
3909 | debug_print_register (const char * func, |
3910 | struct regcache *regcache, int regno) | |
bf0c5130 | 3911 | { |
f8d29908 | 3912 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3913 | |
bf0c5130 | 3914 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3915 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3916 | && gdbarch_register_name (gdbarch, regno) != NULL |
3917 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3918 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3919 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3920 | else |
3921 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3922 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3923 | { |
e17a4113 | 3924 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3925 | int i, size = register_size (gdbarch, regno); |
e362b510 | 3926 | gdb_byte buf[MAX_REGISTER_SIZE]; |
5d502164 | 3927 | |
0ff58721 | 3928 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3929 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3930 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3931 | { |
3932 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3933 | } | |
81c4a259 | 3934 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3935 | { |
e17a4113 | 3936 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3937 | |
0b1553bc UW |
3938 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3939 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3940 | } |
3941 | } | |
3942 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3943 | } | |
3944 | ||
28439f5e PA |
3945 | void |
3946 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3947 | { |
28439f5e | 3948 | struct target_ops *t; |
5d502164 | 3949 | |
28439f5e PA |
3950 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3951 | { | |
3952 | if (t->to_fetch_registers != NULL) | |
3953 | { | |
3954 | t->to_fetch_registers (t, regcache, regno); | |
3955 | if (targetdebug) | |
3956 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3957 | return; | |
3958 | } | |
3959 | } | |
c906108c SS |
3960 | } |
3961 | ||
28439f5e PA |
3962 | void |
3963 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3964 | { |
28439f5e | 3965 | struct target_ops *t; |
5d502164 | 3966 | |
d914c394 SS |
3967 | if (!may_write_registers) |
3968 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3969 | ||
28439f5e PA |
3970 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3971 | { | |
3972 | if (t->to_store_registers != NULL) | |
3973 | { | |
3974 | t->to_store_registers (t, regcache, regno); | |
3975 | if (targetdebug) | |
3976 | { | |
3977 | debug_print_register ("target_store_registers", regcache, regno); | |
3978 | } | |
3979 | return; | |
3980 | } | |
3981 | } | |
3982 | ||
3983 | noprocess (); | |
c906108c SS |
3984 | } |
3985 | ||
dc146f7c VP |
3986 | int |
3987 | target_core_of_thread (ptid_t ptid) | |
3988 | { | |
3989 | struct target_ops *t; | |
3990 | ||
3991 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3992 | { | |
3993 | if (t->to_core_of_thread != NULL) | |
3994 | { | |
3995 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 3996 | |
dc146f7c | 3997 | if (targetdebug) |
3e43a32a MS |
3998 | fprintf_unfiltered (gdb_stdlog, |
3999 | "target_core_of_thread (%d) = %d\n", | |
dfd4cc63 | 4000 | ptid_get_pid (ptid), retval); |
dc146f7c VP |
4001 | return retval; |
4002 | } | |
4003 | } | |
4004 | ||
4005 | return -1; | |
4006 | } | |
4007 | ||
4a5e7a5b PA |
4008 | int |
4009 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4010 | { | |
4011 | struct target_ops *t; | |
4012 | ||
4013 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4014 | { | |
4015 | if (t->to_verify_memory != NULL) | |
4016 | { | |
4017 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4018 | |
4a5e7a5b | 4019 | if (targetdebug) |
3e43a32a MS |
4020 | fprintf_unfiltered (gdb_stdlog, |
4021 | "target_verify_memory (%s, %s) = %d\n", | |
f5656ead | 4022 | paddress (target_gdbarch (), memaddr), |
4a5e7a5b PA |
4023 | pulongest (size), |
4024 | retval); | |
4025 | return retval; | |
4026 | } | |
4027 | } | |
4028 | ||
4029 | tcomplain (); | |
4030 | } | |
4031 | ||
9c06b0b4 TJB |
4032 | /* The documentation for this function is in its prototype declaration in |
4033 | target.h. */ | |
4034 | ||
4035 | int | |
4036 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4037 | { | |
4038 | struct target_ops *t; | |
4039 | ||
4040 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4041 | if (t->to_insert_mask_watchpoint != NULL) | |
4042 | { | |
4043 | int ret; | |
4044 | ||
4045 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4046 | ||
4047 | if (targetdebug) | |
4048 | fprintf_unfiltered (gdb_stdlog, "\ | |
4049 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4050 | core_addr_to_string (addr), | |
4051 | core_addr_to_string (mask), rw, ret); | |
4052 | ||
4053 | return ret; | |
4054 | } | |
4055 | ||
4056 | return 1; | |
4057 | } | |
4058 | ||
4059 | /* The documentation for this function is in its prototype declaration in | |
4060 | target.h. */ | |
4061 | ||
4062 | int | |
4063 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4064 | { | |
4065 | struct target_ops *t; | |
4066 | ||
4067 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4068 | if (t->to_remove_mask_watchpoint != NULL) | |
4069 | { | |
4070 | int ret; | |
4071 | ||
4072 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4073 | ||
4074 | if (targetdebug) | |
4075 | fprintf_unfiltered (gdb_stdlog, "\ | |
4076 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4077 | core_addr_to_string (addr), | |
4078 | core_addr_to_string (mask), rw, ret); | |
4079 | ||
4080 | return ret; | |
4081 | } | |
4082 | ||
4083 | return 1; | |
4084 | } | |
4085 | ||
4086 | /* The documentation for this function is in its prototype declaration | |
4087 | in target.h. */ | |
4088 | ||
4089 | int | |
4090 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4091 | { | |
4092 | struct target_ops *t; | |
4093 | ||
4094 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4095 | if (t->to_masked_watch_num_registers != NULL) | |
4096 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4097 | ||
4098 | return -1; | |
4099 | } | |
4100 | ||
f1310107 TJB |
4101 | /* The documentation for this function is in its prototype declaration |
4102 | in target.h. */ | |
4103 | ||
4104 | int | |
4105 | target_ranged_break_num_registers (void) | |
4106 | { | |
4107 | struct target_ops *t; | |
4108 | ||
4109 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4110 | if (t->to_ranged_break_num_registers != NULL) | |
4111 | return t->to_ranged_break_num_registers (t); | |
4112 | ||
4113 | return -1; | |
4114 | } | |
4115 | ||
02d27625 MM |
4116 | /* See target.h. */ |
4117 | ||
4118 | int | |
4119 | target_supports_btrace (void) | |
4120 | { | |
4121 | struct target_ops *t; | |
4122 | ||
4123 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4124 | if (t->to_supports_btrace != NULL) | |
4125 | return t->to_supports_btrace (); | |
4126 | ||
4127 | return 0; | |
4128 | } | |
4129 | ||
4130 | /* See target.h. */ | |
4131 | ||
4132 | struct btrace_target_info * | |
4133 | target_enable_btrace (ptid_t ptid) | |
4134 | { | |
4135 | struct target_ops *t; | |
4136 | ||
4137 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4138 | if (t->to_enable_btrace != NULL) | |
4139 | return t->to_enable_btrace (ptid); | |
4140 | ||
4141 | tcomplain (); | |
4142 | return NULL; | |
4143 | } | |
4144 | ||
4145 | /* See target.h. */ | |
4146 | ||
4147 | void | |
4148 | target_disable_btrace (struct btrace_target_info *btinfo) | |
4149 | { | |
4150 | struct target_ops *t; | |
4151 | ||
4152 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4153 | if (t->to_disable_btrace != NULL) | |
d92f7ee3 SDJ |
4154 | { |
4155 | t->to_disable_btrace (btinfo); | |
4156 | return; | |
4157 | } | |
02d27625 MM |
4158 | |
4159 | tcomplain (); | |
4160 | } | |
4161 | ||
4162 | /* See target.h. */ | |
4163 | ||
4164 | void | |
4165 | target_teardown_btrace (struct btrace_target_info *btinfo) | |
4166 | { | |
4167 | struct target_ops *t; | |
4168 | ||
4169 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4170 | if (t->to_teardown_btrace != NULL) | |
d92f7ee3 SDJ |
4171 | { |
4172 | t->to_teardown_btrace (btinfo); | |
4173 | return; | |
4174 | } | |
02d27625 MM |
4175 | |
4176 | tcomplain (); | |
4177 | } | |
4178 | ||
4179 | /* See target.h. */ | |
4180 | ||
4181 | VEC (btrace_block_s) * | |
4182 | target_read_btrace (struct btrace_target_info *btinfo, | |
4183 | enum btrace_read_type type) | |
4184 | { | |
4185 | struct target_ops *t; | |
4186 | ||
4187 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4188 | if (t->to_read_btrace != NULL) | |
4189 | return t->to_read_btrace (btinfo, type); | |
4190 | ||
4191 | tcomplain (); | |
4192 | return NULL; | |
4193 | } | |
4194 | ||
d02ed0bb MM |
4195 | /* See target.h. */ |
4196 | ||
7c1687a9 MM |
4197 | void |
4198 | target_stop_recording (void) | |
4199 | { | |
4200 | struct target_ops *t; | |
4201 | ||
4202 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4203 | if (t->to_stop_recording != NULL) | |
4204 | { | |
4205 | t->to_stop_recording (); | |
4206 | return; | |
4207 | } | |
4208 | ||
4209 | /* This is optional. */ | |
4210 | } | |
4211 | ||
4212 | /* See target.h. */ | |
4213 | ||
d02ed0bb MM |
4214 | void |
4215 | target_info_record (void) | |
4216 | { | |
4217 | struct target_ops *t; | |
4218 | ||
4219 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4220 | if (t->to_info_record != NULL) | |
4221 | { | |
4222 | t->to_info_record (); | |
4223 | return; | |
4224 | } | |
4225 | ||
4226 | tcomplain (); | |
4227 | } | |
4228 | ||
4229 | /* See target.h. */ | |
4230 | ||
4231 | void | |
85e1311a | 4232 | target_save_record (const char *filename) |
d02ed0bb MM |
4233 | { |
4234 | struct target_ops *t; | |
4235 | ||
4236 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4237 | if (t->to_save_record != NULL) | |
4238 | { | |
4239 | t->to_save_record (filename); | |
4240 | return; | |
4241 | } | |
4242 | ||
4243 | tcomplain (); | |
4244 | } | |
4245 | ||
4246 | /* See target.h. */ | |
4247 | ||
4248 | int | |
4249 | target_supports_delete_record (void) | |
4250 | { | |
4251 | struct target_ops *t; | |
4252 | ||
4253 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4254 | if (t->to_delete_record != NULL) | |
4255 | return 1; | |
4256 | ||
4257 | return 0; | |
4258 | } | |
4259 | ||
4260 | /* See target.h. */ | |
4261 | ||
4262 | void | |
4263 | target_delete_record (void) | |
4264 | { | |
4265 | struct target_ops *t; | |
4266 | ||
4267 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4268 | if (t->to_delete_record != NULL) | |
4269 | { | |
4270 | t->to_delete_record (); | |
4271 | return; | |
4272 | } | |
4273 | ||
4274 | tcomplain (); | |
4275 | } | |
4276 | ||
4277 | /* See target.h. */ | |
4278 | ||
4279 | int | |
4280 | target_record_is_replaying (void) | |
4281 | { | |
4282 | struct target_ops *t; | |
4283 | ||
4284 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4285 | if (t->to_record_is_replaying != NULL) | |
4286 | return t->to_record_is_replaying (); | |
4287 | ||
4288 | return 0; | |
4289 | } | |
4290 | ||
4291 | /* See target.h. */ | |
4292 | ||
4293 | void | |
4294 | target_goto_record_begin (void) | |
4295 | { | |
4296 | struct target_ops *t; | |
4297 | ||
4298 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4299 | if (t->to_goto_record_begin != NULL) | |
4300 | { | |
4301 | t->to_goto_record_begin (); | |
4302 | return; | |
4303 | } | |
4304 | ||
4305 | tcomplain (); | |
4306 | } | |
4307 | ||
4308 | /* See target.h. */ | |
4309 | ||
4310 | void | |
4311 | target_goto_record_end (void) | |
4312 | { | |
4313 | struct target_ops *t; | |
4314 | ||
4315 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4316 | if (t->to_goto_record_end != NULL) | |
4317 | { | |
4318 | t->to_goto_record_end (); | |
4319 | return; | |
4320 | } | |
4321 | ||
4322 | tcomplain (); | |
4323 | } | |
4324 | ||
4325 | /* See target.h. */ | |
4326 | ||
4327 | void | |
4328 | target_goto_record (ULONGEST insn) | |
4329 | { | |
4330 | struct target_ops *t; | |
4331 | ||
4332 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4333 | if (t->to_goto_record != NULL) | |
4334 | { | |
4335 | t->to_goto_record (insn); | |
4336 | return; | |
4337 | } | |
4338 | ||
4339 | tcomplain (); | |
4340 | } | |
4341 | ||
67c86d06 MM |
4342 | /* See target.h. */ |
4343 | ||
4344 | void | |
4345 | target_insn_history (int size, int flags) | |
4346 | { | |
4347 | struct target_ops *t; | |
4348 | ||
4349 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4350 | if (t->to_insn_history != NULL) | |
4351 | { | |
4352 | t->to_insn_history (size, flags); | |
4353 | return; | |
4354 | } | |
4355 | ||
4356 | tcomplain (); | |
4357 | } | |
4358 | ||
4359 | /* See target.h. */ | |
4360 | ||
4361 | void | |
4362 | target_insn_history_from (ULONGEST from, int size, int flags) | |
4363 | { | |
4364 | struct target_ops *t; | |
4365 | ||
4366 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4367 | if (t->to_insn_history_from != NULL) | |
4368 | { | |
4369 | t->to_insn_history_from (from, size, flags); | |
4370 | return; | |
4371 | } | |
4372 | ||
4373 | tcomplain (); | |
4374 | } | |
4375 | ||
4376 | /* See target.h. */ | |
4377 | ||
4378 | void | |
4379 | target_insn_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4380 | { | |
4381 | struct target_ops *t; | |
4382 | ||
4383 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4384 | if (t->to_insn_history_range != NULL) | |
4385 | { | |
4386 | t->to_insn_history_range (begin, end, flags); | |
4387 | return; | |
4388 | } | |
4389 | ||
4390 | tcomplain (); | |
4391 | } | |
4392 | ||
15984c13 MM |
4393 | /* See target.h. */ |
4394 | ||
4395 | void | |
4396 | target_call_history (int size, int flags) | |
4397 | { | |
4398 | struct target_ops *t; | |
4399 | ||
4400 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4401 | if (t->to_call_history != NULL) | |
4402 | { | |
4403 | t->to_call_history (size, flags); | |
4404 | return; | |
4405 | } | |
4406 | ||
4407 | tcomplain (); | |
4408 | } | |
4409 | ||
4410 | /* See target.h. */ | |
4411 | ||
4412 | void | |
4413 | target_call_history_from (ULONGEST begin, int size, int flags) | |
4414 | { | |
4415 | struct target_ops *t; | |
4416 | ||
4417 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4418 | if (t->to_call_history_from != NULL) | |
4419 | { | |
4420 | t->to_call_history_from (begin, size, flags); | |
4421 | return; | |
4422 | } | |
4423 | ||
4424 | tcomplain (); | |
4425 | } | |
4426 | ||
4427 | /* See target.h. */ | |
4428 | ||
4429 | void | |
4430 | target_call_history_range (ULONGEST begin, ULONGEST end, int flags) | |
4431 | { | |
4432 | struct target_ops *t; | |
4433 | ||
4434 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4435 | if (t->to_call_history_range != NULL) | |
4436 | { | |
4437 | t->to_call_history_range (begin, end, flags); | |
4438 | return; | |
4439 | } | |
4440 | ||
4441 | tcomplain (); | |
4442 | } | |
4443 | ||
c906108c | 4444 | static void |
316f2060 | 4445 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 4446 | { |
316f2060 | 4447 | debug_target.to_prepare_to_store (regcache); |
c906108c | 4448 | |
96baa820 | 4449 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4450 | } |
4451 | ||
4452 | static int | |
961cb7b5 | 4453 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4454 | int write, struct mem_attrib *attrib, |
4455 | struct target_ops *target) | |
c906108c SS |
4456 | { |
4457 | int retval; | |
4458 | ||
c8e73a31 AC |
4459 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4460 | attrib, target); | |
c906108c | 4461 | |
96baa820 | 4462 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4463 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
f5656ead | 4464 | paddress (target_gdbarch (), memaddr), len, |
5af949e3 | 4465 | write ? "write" : "read", retval); |
c906108c | 4466 | |
c906108c SS |
4467 | if (retval > 0) |
4468 | { | |
4469 | int i; | |
4470 | ||
96baa820 | 4471 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4472 | for (i = 0; i < retval; i++) |
4473 | { | |
53b71562 | 4474 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4475 | { |
4476 | if (targetdebug < 2 && i > 0) | |
4477 | { | |
4478 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4479 | break; | |
4480 | } | |
4481 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4482 | } | |
2bc416ba | 4483 | |
96baa820 | 4484 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4485 | } |
4486 | } | |
4487 | ||
96baa820 | 4488 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4489 | |
4490 | return retval; | |
4491 | } | |
4492 | ||
4493 | static void | |
fba45db2 | 4494 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4495 | { |
4496 | debug_target.to_files_info (target); | |
4497 | ||
96baa820 | 4498 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4499 | } |
4500 | ||
4501 | static int | |
a6d9a66e UW |
4502 | debug_to_insert_breakpoint (struct gdbarch *gdbarch, |
4503 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4504 | { |
4505 | int retval; | |
4506 | ||
a6d9a66e | 4507 | retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt); |
c906108c | 4508 | |
96baa820 | 4509 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4510 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4511 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4512 | (unsigned long) retval); |
c906108c SS |
4513 | return retval; |
4514 | } | |
4515 | ||
4516 | static int | |
a6d9a66e UW |
4517 | debug_to_remove_breakpoint (struct gdbarch *gdbarch, |
4518 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4519 | { |
4520 | int retval; | |
4521 | ||
a6d9a66e | 4522 | retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt); |
c906108c | 4523 | |
96baa820 | 4524 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4525 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4526 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4527 | (unsigned long) retval); |
c906108c SS |
4528 | return retval; |
4529 | } | |
4530 | ||
ccaa32c7 GS |
4531 | static int |
4532 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
4533 | { | |
4534 | int retval; | |
4535 | ||
4536 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
4537 | ||
4538 | fprintf_unfiltered (gdb_stdlog, | |
4539 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4540 | (unsigned long) type, | |
4541 | (unsigned long) cnt, | |
4542 | (unsigned long) from_tty, | |
4543 | (unsigned long) retval); | |
4544 | return retval; | |
4545 | } | |
4546 | ||
e0d24f8d WZ |
4547 | static int |
4548 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
4549 | { | |
4550 | CORE_ADDR retval; | |
4551 | ||
4552 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
4553 | ||
4554 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4555 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4556 | core_addr_to_string (addr), (unsigned long) len, | |
4557 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4558 | return retval; |
4559 | } | |
4560 | ||
0cf6dd15 TJB |
4561 | static int |
4562 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
4563 | struct expression *cond) | |
4564 | { | |
4565 | int retval; | |
4566 | ||
3e43a32a MS |
4567 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
4568 | rw, cond); | |
0cf6dd15 TJB |
4569 | |
4570 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4571 | "target_can_accel_watchpoint_condition " |
4572 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4573 | core_addr_to_string (addr), len, rw, |
4574 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4575 | return retval; |
4576 | } | |
4577 | ||
ccaa32c7 GS |
4578 | static int |
4579 | debug_to_stopped_by_watchpoint (void) | |
4580 | { | |
4581 | int retval; | |
4582 | ||
4583 | retval = debug_target.to_stopped_by_watchpoint (); | |
4584 | ||
4585 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4586 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4587 | (unsigned long) retval); |
4588 | return retval; | |
4589 | } | |
4590 | ||
4aa7a7f5 JJ |
4591 | static int |
4592 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4593 | { |
4aa7a7f5 | 4594 | int retval; |
ccaa32c7 | 4595 | |
4aa7a7f5 | 4596 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4597 | |
4598 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4599 | "target_stopped_data_address ([%s]) = %ld\n", |
4600 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4601 | (unsigned long)retval); |
ccaa32c7 GS |
4602 | return retval; |
4603 | } | |
4604 | ||
5009afc5 AS |
4605 | static int |
4606 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4607 | CORE_ADDR addr, | |
4608 | CORE_ADDR start, int length) | |
4609 | { | |
4610 | int retval; | |
4611 | ||
4612 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4613 | start, length); | |
4614 | ||
4615 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4616 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4617 | core_addr_to_string (addr), core_addr_to_string (start), | |
4618 | length, retval); | |
5009afc5 AS |
4619 | return retval; |
4620 | } | |
4621 | ||
ccaa32c7 | 4622 | static int |
a6d9a66e UW |
4623 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
4624 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4625 | { |
4626 | int retval; | |
4627 | ||
a6d9a66e | 4628 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4629 | |
4630 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4631 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4632 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4633 | (unsigned long) retval); |
4634 | return retval; | |
4635 | } | |
4636 | ||
4637 | static int | |
a6d9a66e UW |
4638 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
4639 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4640 | { |
4641 | int retval; | |
4642 | ||
a6d9a66e | 4643 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4644 | |
4645 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4646 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4647 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4648 | (unsigned long) retval); |
4649 | return retval; | |
4650 | } | |
4651 | ||
4652 | static int | |
0cf6dd15 TJB |
4653 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
4654 | struct expression *cond) | |
ccaa32c7 GS |
4655 | { |
4656 | int retval; | |
4657 | ||
0cf6dd15 | 4658 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4659 | |
4660 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4661 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4662 | core_addr_to_string (addr), len, type, | |
4663 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4664 | return retval; |
4665 | } | |
4666 | ||
4667 | static int | |
0cf6dd15 TJB |
4668 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type, |
4669 | struct expression *cond) | |
ccaa32c7 GS |
4670 | { |
4671 | int retval; | |
4672 | ||
0cf6dd15 | 4673 | retval = debug_target.to_remove_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4674 | |
4675 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4676 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4677 | core_addr_to_string (addr), len, type, | |
4678 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4679 | return retval; |
4680 | } | |
4681 | ||
c906108c | 4682 | static void |
fba45db2 | 4683 | debug_to_terminal_init (void) |
c906108c SS |
4684 | { |
4685 | debug_target.to_terminal_init (); | |
4686 | ||
96baa820 | 4687 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4688 | } |
4689 | ||
4690 | static void | |
fba45db2 | 4691 | debug_to_terminal_inferior (void) |
c906108c SS |
4692 | { |
4693 | debug_target.to_terminal_inferior (); | |
4694 | ||
96baa820 | 4695 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4696 | } |
4697 | ||
4698 | static void | |
fba45db2 | 4699 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
4700 | { |
4701 | debug_target.to_terminal_ours_for_output (); | |
4702 | ||
96baa820 | 4703 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4704 | } |
4705 | ||
4706 | static void | |
fba45db2 | 4707 | debug_to_terminal_ours (void) |
c906108c SS |
4708 | { |
4709 | debug_target.to_terminal_ours (); | |
4710 | ||
96baa820 | 4711 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4712 | } |
4713 | ||
a790ad35 SC |
4714 | static void |
4715 | debug_to_terminal_save_ours (void) | |
4716 | { | |
4717 | debug_target.to_terminal_save_ours (); | |
4718 | ||
4719 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4720 | } | |
4721 | ||
c906108c | 4722 | static void |
503ebb2c | 4723 | debug_to_terminal_info (const char *arg, int from_tty) |
c906108c SS |
4724 | { |
4725 | debug_target.to_terminal_info (arg, from_tty); | |
4726 | ||
96baa820 | 4727 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4728 | from_tty); |
4729 | } | |
4730 | ||
c906108c | 4731 | static void |
fba45db2 | 4732 | debug_to_load (char *args, int from_tty) |
c906108c SS |
4733 | { |
4734 | debug_target.to_load (args, from_tty); | |
4735 | ||
96baa820 | 4736 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4737 | } |
4738 | ||
c906108c | 4739 | static void |
39f77062 | 4740 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 4741 | { |
39f77062 | 4742 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 4743 | |
96baa820 | 4744 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
dfd4cc63 | 4745 | ptid_get_pid (ptid)); |
c906108c SS |
4746 | } |
4747 | ||
77b06cd7 | 4748 | static int |
fba45db2 | 4749 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 4750 | { |
77b06cd7 TJB |
4751 | int retval; |
4752 | ||
4753 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
4754 | ||
4755 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4756 | pid, retval); | |
c906108c | 4757 | |
77b06cd7 | 4758 | return retval; |
c906108c SS |
4759 | } |
4760 | ||
4761 | static int | |
fba45db2 | 4762 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 4763 | { |
c5aa993b | 4764 | int retval; |
c906108c SS |
4765 | |
4766 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
4767 | ||
96baa820 | 4768 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4769 | pid, retval); |
c906108c SS |
4770 | |
4771 | return retval; | |
4772 | } | |
4773 | ||
77b06cd7 | 4774 | static int |
fba45db2 | 4775 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 4776 | { |
77b06cd7 TJB |
4777 | int retval; |
4778 | ||
4779 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 4780 | |
77b06cd7 TJB |
4781 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4782 | pid, retval); | |
4783 | ||
4784 | return retval; | |
c906108c SS |
4785 | } |
4786 | ||
4787 | static int | |
fba45db2 | 4788 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 4789 | { |
c5aa993b | 4790 | int retval; |
c906108c SS |
4791 | |
4792 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
4793 | ||
96baa820 | 4794 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4795 | pid, retval); |
c906108c SS |
4796 | |
4797 | return retval; | |
4798 | } | |
4799 | ||
77b06cd7 | 4800 | static int |
fba45db2 | 4801 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 4802 | { |
77b06cd7 TJB |
4803 | int retval; |
4804 | ||
4805 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 4806 | |
77b06cd7 TJB |
4807 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4808 | pid, retval); | |
4809 | ||
4810 | return retval; | |
c906108c SS |
4811 | } |
4812 | ||
4813 | static int | |
fba45db2 | 4814 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 4815 | { |
c5aa993b | 4816 | int retval; |
c906108c SS |
4817 | |
4818 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
4819 | ||
96baa820 | 4820 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4821 | pid, retval); |
c906108c SS |
4822 | |
4823 | return retval; | |
4824 | } | |
4825 | ||
c906108c | 4826 | static int |
fba45db2 | 4827 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 4828 | { |
c5aa993b | 4829 | int has_exited; |
c906108c SS |
4830 | |
4831 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
4832 | ||
96baa820 | 4833 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4834 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4835 | |
4836 | return has_exited; | |
4837 | } | |
4838 | ||
c906108c | 4839 | static int |
fba45db2 | 4840 | debug_to_can_run (void) |
c906108c SS |
4841 | { |
4842 | int retval; | |
4843 | ||
4844 | retval = debug_target.to_can_run (); | |
4845 | ||
96baa820 | 4846 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4847 | |
4848 | return retval; | |
4849 | } | |
4850 | ||
c2250ad1 UW |
4851 | static struct gdbarch * |
4852 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4853 | { | |
4854 | struct gdbarch *retval; | |
4855 | ||
4856 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4857 | ||
3e43a32a MS |
4858 | fprintf_unfiltered (gdb_stdlog, |
4859 | "target_thread_architecture (%s) = %s [%s]\n", | |
4860 | target_pid_to_str (ptid), | |
4861 | host_address_to_string (retval), | |
c2250ad1 UW |
4862 | gdbarch_bfd_arch_info (retval)->printable_name); |
4863 | return retval; | |
4864 | } | |
4865 | ||
c906108c | 4866 | static void |
94cc34af | 4867 | debug_to_stop (ptid_t ptid) |
c906108c | 4868 | { |
94cc34af | 4869 | debug_target.to_stop (ptid); |
c906108c | 4870 | |
94cc34af PA |
4871 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4872 | target_pid_to_str (ptid)); | |
c906108c SS |
4873 | } |
4874 | ||
96baa820 JM |
4875 | static void |
4876 | debug_to_rcmd (char *command, | |
d9fcf2fb | 4877 | struct ui_file *outbuf) |
96baa820 JM |
4878 | { |
4879 | debug_target.to_rcmd (command, outbuf); | |
4880 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
4881 | } | |
4882 | ||
c906108c | 4883 | static char * |
fba45db2 | 4884 | debug_to_pid_to_exec_file (int pid) |
c906108c | 4885 | { |
c5aa993b | 4886 | char *exec_file; |
c906108c SS |
4887 | |
4888 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
4889 | ||
96baa820 | 4890 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4891 | pid, exec_file); |
c906108c SS |
4892 | |
4893 | return exec_file; | |
4894 | } | |
4895 | ||
c906108c | 4896 | static void |
fba45db2 | 4897 | setup_target_debug (void) |
c906108c SS |
4898 | { |
4899 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4900 | ||
4901 | current_target.to_open = debug_to_open; | |
c906108c | 4902 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4903 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4904 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4905 | current_target.to_files_info = debug_to_files_info; |
4906 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4907 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4908 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4909 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4910 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4911 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4912 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4913 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4914 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4915 | current_target.to_watchpoint_addr_within_range |
4916 | = debug_to_watchpoint_addr_within_range; | |
4917 | current_target.to_region_ok_for_hw_watchpoint | |
4918 | = debug_to_region_ok_for_hw_watchpoint; | |
4919 | current_target.to_can_accel_watchpoint_condition | |
4920 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4921 | current_target.to_terminal_init = debug_to_terminal_init; |
4922 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4923 | current_target.to_terminal_ours_for_output |
4924 | = debug_to_terminal_ours_for_output; | |
c906108c | 4925 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4926 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4927 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4928 | current_target.to_load = debug_to_load; |
c906108c | 4929 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4930 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4931 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4932 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4933 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4934 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4935 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4936 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4937 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4938 | current_target.to_stop = debug_to_stop; |
96baa820 | 4939 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4940 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4941 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4942 | } |
c906108c | 4943 | \f |
c5aa993b JM |
4944 | |
4945 | static char targ_desc[] = | |
3e43a32a MS |
4946 | "Names of targets and files being debugged.\nShows the entire \ |
4947 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4948 | core-file, and process, if any), as well as the symbol file name."; |
4949 | ||
96baa820 JM |
4950 | static void |
4951 | do_monitor_command (char *cmd, | |
4952 | int from_tty) | |
4953 | { | |
2b5fe715 AC |
4954 | if ((current_target.to_rcmd |
4955 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 4956 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
4957 | && (debug_target.to_rcmd |
4958 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 4959 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
4960 | target_rcmd (cmd, gdb_stdtarg); |
4961 | } | |
4962 | ||
87680a14 JB |
4963 | /* Print the name of each layers of our target stack. */ |
4964 | ||
4965 | static void | |
4966 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4967 | { | |
4968 | struct target_ops *t; | |
4969 | ||
4970 | printf_filtered (_("The current target stack is:\n")); | |
4971 | ||
4972 | for (t = target_stack; t != NULL; t = t->beneath) | |
4973 | { | |
4974 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4975 | } | |
4976 | } | |
4977 | ||
c6ebd6cf VP |
4978 | /* Controls if async mode is permitted. */ |
4979 | int target_async_permitted = 0; | |
4980 | ||
4981 | /* The set command writes to this variable. If the inferior is | |
b5419e49 | 4982 | executing, target_async_permitted is *not* updated. */ |
c6ebd6cf VP |
4983 | static int target_async_permitted_1 = 0; |
4984 | ||
4985 | static void | |
9401a810 PA |
4986 | set_target_async_command (char *args, int from_tty, |
4987 | struct cmd_list_element *c) | |
c6ebd6cf | 4988 | { |
c35b1492 | 4989 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4990 | { |
4991 | target_async_permitted_1 = target_async_permitted; | |
4992 | error (_("Cannot change this setting while the inferior is running.")); | |
4993 | } | |
4994 | ||
4995 | target_async_permitted = target_async_permitted_1; | |
4996 | } | |
4997 | ||
4998 | static void | |
9401a810 PA |
4999 | show_target_async_command (struct ui_file *file, int from_tty, |
5000 | struct cmd_list_element *c, | |
5001 | const char *value) | |
c6ebd6cf | 5002 | { |
3e43a32a MS |
5003 | fprintf_filtered (file, |
5004 | _("Controlling the inferior in " | |
5005 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
5006 | } |
5007 | ||
d914c394 SS |
5008 | /* Temporary copies of permission settings. */ |
5009 | ||
5010 | static int may_write_registers_1 = 1; | |
5011 | static int may_write_memory_1 = 1; | |
5012 | static int may_insert_breakpoints_1 = 1; | |
5013 | static int may_insert_tracepoints_1 = 1; | |
5014 | static int may_insert_fast_tracepoints_1 = 1; | |
5015 | static int may_stop_1 = 1; | |
5016 | ||
5017 | /* Make the user-set values match the real values again. */ | |
5018 | ||
5019 | void | |
5020 | update_target_permissions (void) | |
5021 | { | |
5022 | may_write_registers_1 = may_write_registers; | |
5023 | may_write_memory_1 = may_write_memory; | |
5024 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
5025 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
5026 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
5027 | may_stop_1 = may_stop; | |
5028 | } | |
5029 | ||
5030 | /* The one function handles (most of) the permission flags in the same | |
5031 | way. */ | |
5032 | ||
5033 | static void | |
5034 | set_target_permissions (char *args, int from_tty, | |
5035 | struct cmd_list_element *c) | |
5036 | { | |
5037 | if (target_has_execution) | |
5038 | { | |
5039 | update_target_permissions (); | |
5040 | error (_("Cannot change this setting while the inferior is running.")); | |
5041 | } | |
5042 | ||
5043 | /* Make the real values match the user-changed values. */ | |
5044 | may_write_registers = may_write_registers_1; | |
5045 | may_insert_breakpoints = may_insert_breakpoints_1; | |
5046 | may_insert_tracepoints = may_insert_tracepoints_1; | |
5047 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
5048 | may_stop = may_stop_1; | |
5049 | update_observer_mode (); | |
5050 | } | |
5051 | ||
5052 | /* Set memory write permission independently of observer mode. */ | |
5053 | ||
5054 | static void | |
5055 | set_write_memory_permission (char *args, int from_tty, | |
5056 | struct cmd_list_element *c) | |
5057 | { | |
5058 | /* Make the real values match the user-changed values. */ | |
5059 | may_write_memory = may_write_memory_1; | |
5060 | update_observer_mode (); | |
5061 | } | |
5062 | ||
5063 | ||
c906108c | 5064 | void |
fba45db2 | 5065 | initialize_targets (void) |
c906108c SS |
5066 | { |
5067 | init_dummy_target (); | |
5068 | push_target (&dummy_target); | |
5069 | ||
5070 | add_info ("target", target_info, targ_desc); | |
5071 | add_info ("files", target_info, targ_desc); | |
5072 | ||
ccce17b0 | 5073 | add_setshow_zuinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
85c07804 AC |
5074 | Set target debugging."), _("\ |
5075 | Show target debugging."), _("\ | |
333dabeb DJ |
5076 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
5077 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 | 5078 | command."), |
ccce17b0 YQ |
5079 | NULL, |
5080 | show_targetdebug, | |
5081 | &setdebuglist, &showdebuglist); | |
3a11626d | 5082 | |
2bc416ba | 5083 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
5084 | &trust_readonly, _("\ |
5085 | Set mode for reading from readonly sections."), _("\ | |
5086 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
5087 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
5088 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 5089 | result in significant performance improvement for remote targets."), |
2c5b56ce | 5090 | NULL, |
920d2a44 | 5091 | show_trust_readonly, |
e707bbc2 | 5092 | &setlist, &showlist); |
96baa820 JM |
5093 | |
5094 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 5095 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 5096 | |
87680a14 JB |
5097 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
5098 | _("Print the name of each layer of the internal target stack."), | |
5099 | &maintenanceprintlist); | |
5100 | ||
c6ebd6cf VP |
5101 | add_setshow_boolean_cmd ("target-async", no_class, |
5102 | &target_async_permitted_1, _("\ | |
5103 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
5104 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
5105 | Tells gdb whether to control the inferior in asynchronous mode."), | |
9401a810 PA |
5106 | set_target_async_command, |
5107 | show_target_async_command, | |
c6ebd6cf VP |
5108 | &setlist, |
5109 | &showlist); | |
5110 | ||
d914c394 SS |
5111 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
5112 | &may_write_registers_1, _("\ | |
5113 | Set permission to write into registers."), _("\ | |
5114 | Show permission to write into registers."), _("\ | |
5115 | When this permission is on, GDB may write into the target's registers.\n\ | |
5116 | Otherwise, any sort of write attempt will result in an error."), | |
5117 | set_target_permissions, NULL, | |
5118 | &setlist, &showlist); | |
5119 | ||
5120 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
5121 | &may_write_memory_1, _("\ | |
5122 | Set permission to write into target memory."), _("\ | |
5123 | Show permission to write into target memory."), _("\ | |
5124 | When this permission is on, GDB may write into the target's memory.\n\ | |
5125 | Otherwise, any sort of write attempt will result in an error."), | |
5126 | set_write_memory_permission, NULL, | |
5127 | &setlist, &showlist); | |
5128 | ||
5129 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
5130 | &may_insert_breakpoints_1, _("\ | |
5131 | Set permission to insert breakpoints in the target."), _("\ | |
5132 | Show permission to insert breakpoints in the target."), _("\ | |
5133 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
5134 | Otherwise, any sort of insertion attempt will result in an error."), | |
5135 | set_target_permissions, NULL, | |
5136 | &setlist, &showlist); | |
5137 | ||
5138 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
5139 | &may_insert_tracepoints_1, _("\ | |
5140 | Set permission to insert tracepoints in the target."), _("\ | |
5141 | Show permission to insert tracepoints in the target."), _("\ | |
5142 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
5143 | Otherwise, any sort of insertion attempt will result in an error."), | |
5144 | set_target_permissions, NULL, | |
5145 | &setlist, &showlist); | |
5146 | ||
5147 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
5148 | &may_insert_fast_tracepoints_1, _("\ | |
5149 | Set permission to insert fast tracepoints in the target."), _("\ | |
5150 | Show permission to insert fast tracepoints in the target."), _("\ | |
5151 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
5152 | Otherwise, any sort of insertion attempt will result in an error."), | |
5153 | set_target_permissions, NULL, | |
5154 | &setlist, &showlist); | |
5155 | ||
5156 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
5157 | &may_stop_1, _("\ | |
5158 | Set permission to interrupt or signal the target."), _("\ | |
5159 | Show permission to interrupt or signal the target."), _("\ | |
5160 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
5161 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
5162 | set_target_permissions, NULL, | |
5163 | &setlist, &showlist); | |
c906108c | 5164 | } |