Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
6aba47ca | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
0fb0cc75 | 4 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
f6519ebc | 5 | Free Software Foundation, Inc. |
7998dfc3 | 6 | |
c906108c SS |
7 | Contributed by Cygnus Support. |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include <errno.h> | |
c906108c SS |
26 | #include "gdb_string.h" |
27 | #include "target.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "symtab.h" | |
30 | #include "inferior.h" | |
31 | #include "bfd.h" | |
32 | #include "symfile.h" | |
33 | #include "objfiles.h" | |
03f2053f | 34 | #include "gdb_wait.h" |
4930751a | 35 | #include "dcache.h" |
c906108c | 36 | #include <signal.h> |
4e052eda | 37 | #include "regcache.h" |
0088c768 | 38 | #include "gdb_assert.h" |
b6591e8b | 39 | #include "gdbcore.h" |
9e35dae4 | 40 | #include "exceptions.h" |
424163ea | 41 | #include "target-descriptions.h" |
e1ac3328 | 42 | #include "gdbthread.h" |
b9db4ced | 43 | #include "solib.h" |
07b82ea5 | 44 | #include "exec.h" |
edb3359d | 45 | #include "inline-frame.h" |
c906108c | 46 | |
a14ed312 | 47 | static void target_info (char *, int); |
c906108c | 48 | |
a14ed312 | 49 | static void kill_or_be_killed (int); |
c906108c | 50 | |
a14ed312 | 51 | static void default_terminal_info (char *, int); |
c906108c | 52 | |
5009afc5 AS |
53 | static int default_watchpoint_addr_within_range (struct target_ops *, |
54 | CORE_ADDR, CORE_ADDR, int); | |
55 | ||
e0d24f8d WZ |
56 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
57 | ||
a14ed312 | 58 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 59 | |
4ecb6f27 | 60 | static void tcomplain (void) ATTR_NORETURN; |
c906108c | 61 | |
a14ed312 | 62 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 63 | |
a14ed312 | 64 | static int return_zero (void); |
c906108c | 65 | |
a14ed312 | 66 | static int return_one (void); |
c906108c | 67 | |
ccaa32c7 GS |
68 | static int return_minus_one (void); |
69 | ||
a14ed312 | 70 | void target_ignore (void); |
c906108c | 71 | |
a14ed312 | 72 | static void target_command (char *, int); |
c906108c | 73 | |
a14ed312 | 74 | static struct target_ops *find_default_run_target (char *); |
c906108c | 75 | |
a14ed312 | 76 | static void nosupport_runtime (void); |
392a587b | 77 | |
4b8a223f | 78 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 79 | enum target_object object, |
1b0ba102 AC |
80 | const char *annex, gdb_byte *readbuf, |
81 | const gdb_byte *writebuf, | |
8aa91c1e | 82 | ULONGEST offset, LONGEST len); |
0088c768 | 83 | |
cf7a04e8 DJ |
84 | static LONGEST current_xfer_partial (struct target_ops *ops, |
85 | enum target_object object, | |
86 | const char *annex, gdb_byte *readbuf, | |
87 | const gdb_byte *writebuf, | |
88 | ULONGEST offset, LONGEST len); | |
c906108c | 89 | |
cf7a04e8 DJ |
90 | static LONGEST target_xfer_partial (struct target_ops *ops, |
91 | enum target_object object, | |
92 | const char *annex, | |
93 | void *readbuf, const void *writebuf, | |
94 | ULONGEST offset, LONGEST len); | |
c906108c | 95 | |
c2250ad1 UW |
96 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
97 | ptid_t ptid); | |
98 | ||
a14ed312 | 99 | static void init_dummy_target (void); |
c906108c | 100 | |
aa869812 AC |
101 | static struct target_ops debug_target; |
102 | ||
a14ed312 | 103 | static void debug_to_open (char *, int); |
c906108c | 104 | |
316f2060 | 105 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 106 | |
a14ed312 | 107 | static void debug_to_files_info (struct target_ops *); |
c906108c | 108 | |
a6d9a66e UW |
109 | static int debug_to_insert_breakpoint (struct gdbarch *, |
110 | struct bp_target_info *); | |
c906108c | 111 | |
a6d9a66e UW |
112 | static int debug_to_remove_breakpoint (struct gdbarch *, |
113 | struct bp_target_info *); | |
c906108c | 114 | |
ccaa32c7 GS |
115 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
116 | ||
a6d9a66e UW |
117 | static int debug_to_insert_hw_breakpoint (struct gdbarch *, |
118 | struct bp_target_info *); | |
ccaa32c7 | 119 | |
a6d9a66e UW |
120 | static int debug_to_remove_hw_breakpoint (struct gdbarch *, |
121 | struct bp_target_info *); | |
ccaa32c7 GS |
122 | |
123 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
124 | ||
125 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
126 | ||
127 | static int debug_to_stopped_by_watchpoint (void); | |
128 | ||
4aa7a7f5 | 129 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 130 | |
5009afc5 AS |
131 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
132 | CORE_ADDR, CORE_ADDR, int); | |
133 | ||
e0d24f8d WZ |
134 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
135 | ||
a14ed312 | 136 | static void debug_to_terminal_init (void); |
c906108c | 137 | |
a14ed312 | 138 | static void debug_to_terminal_inferior (void); |
c906108c | 139 | |
a14ed312 | 140 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 141 | |
a790ad35 SC |
142 | static void debug_to_terminal_save_ours (void); |
143 | ||
a14ed312 | 144 | static void debug_to_terminal_ours (void); |
c906108c | 145 | |
a14ed312 | 146 | static void debug_to_terminal_info (char *, int); |
c906108c | 147 | |
a14ed312 | 148 | static void debug_to_load (char *, int); |
c906108c | 149 | |
a14ed312 | 150 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 151 | |
a14ed312 | 152 | static int debug_to_can_run (void); |
c906108c | 153 | |
39f77062 | 154 | static void debug_to_notice_signals (ptid_t); |
c906108c | 155 | |
94cc34af | 156 | static void debug_to_stop (ptid_t); |
c906108c | 157 | |
5ac10fd1 AC |
158 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
159 | wierd and mysterious ways. Putting the variable here lets those | |
160 | wierd and mysterious ways keep building while they are being | |
161 | converted to the inferior inheritance structure. */ | |
1df84f13 | 162 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 163 | |
c906108c | 164 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 165 | array; the current index into the array; the allocated size of the |
c906108c SS |
166 | array. */ |
167 | struct target_ops **target_structs; | |
168 | unsigned target_struct_size; | |
169 | unsigned target_struct_index; | |
170 | unsigned target_struct_allocsize; | |
171 | #define DEFAULT_ALLOCSIZE 10 | |
172 | ||
173 | /* The initial current target, so that there is always a semi-valid | |
174 | current target. */ | |
175 | ||
176 | static struct target_ops dummy_target; | |
177 | ||
178 | /* Top of target stack. */ | |
179 | ||
258b763a | 180 | static struct target_ops *target_stack; |
c906108c SS |
181 | |
182 | /* The target structure we are currently using to talk to a process | |
183 | or file or whatever "inferior" we have. */ | |
184 | ||
185 | struct target_ops current_target; | |
186 | ||
187 | /* Command list for target. */ | |
188 | ||
189 | static struct cmd_list_element *targetlist = NULL; | |
190 | ||
cf7a04e8 DJ |
191 | /* Nonzero if we should trust readonly sections from the |
192 | executable when reading memory. */ | |
193 | ||
194 | static int trust_readonly = 0; | |
195 | ||
8defab1a DJ |
196 | /* Nonzero if we should show true memory content including |
197 | memory breakpoint inserted by gdb. */ | |
198 | ||
199 | static int show_memory_breakpoints = 0; | |
200 | ||
c906108c SS |
201 | /* Non-zero if we want to see trace of target level stuff. */ |
202 | ||
203 | static int targetdebug = 0; | |
920d2a44 AC |
204 | static void |
205 | show_targetdebug (struct ui_file *file, int from_tty, | |
206 | struct cmd_list_element *c, const char *value) | |
207 | { | |
208 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
209 | } | |
c906108c | 210 | |
a14ed312 | 211 | static void setup_target_debug (void); |
c906108c | 212 | |
4930751a C |
213 | DCACHE *target_dcache; |
214 | ||
c906108c SS |
215 | /* The user just typed 'target' without the name of a target. */ |
216 | ||
c906108c | 217 | static void |
fba45db2 | 218 | target_command (char *arg, int from_tty) |
c906108c SS |
219 | { |
220 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
221 | gdb_stdout); | |
222 | } | |
223 | ||
c35b1492 PA |
224 | /* Default target_has_* methods for process_stratum targets. */ |
225 | ||
226 | int | |
227 | default_child_has_all_memory (struct target_ops *ops) | |
228 | { | |
229 | /* If no inferior selected, then we can't read memory here. */ | |
230 | if (ptid_equal (inferior_ptid, null_ptid)) | |
231 | return 0; | |
232 | ||
233 | return 1; | |
234 | } | |
235 | ||
236 | int | |
237 | default_child_has_memory (struct target_ops *ops) | |
238 | { | |
239 | /* If no inferior selected, then we can't read memory here. */ | |
240 | if (ptid_equal (inferior_ptid, null_ptid)) | |
241 | return 0; | |
242 | ||
243 | return 1; | |
244 | } | |
245 | ||
246 | int | |
247 | default_child_has_stack (struct target_ops *ops) | |
248 | { | |
249 | /* If no inferior selected, there's no stack. */ | |
250 | if (ptid_equal (inferior_ptid, null_ptid)) | |
251 | return 0; | |
252 | ||
253 | return 1; | |
254 | } | |
255 | ||
256 | int | |
257 | default_child_has_registers (struct target_ops *ops) | |
258 | { | |
259 | /* Can't read registers from no inferior. */ | |
260 | if (ptid_equal (inferior_ptid, null_ptid)) | |
261 | return 0; | |
262 | ||
263 | return 1; | |
264 | } | |
265 | ||
266 | int | |
267 | default_child_has_execution (struct target_ops *ops) | |
268 | { | |
269 | /* If there's no thread selected, then we can't make it run through | |
270 | hoops. */ | |
271 | if (ptid_equal (inferior_ptid, null_ptid)) | |
272 | return 0; | |
273 | ||
274 | return 1; | |
275 | } | |
276 | ||
277 | ||
278 | int | |
279 | target_has_all_memory_1 (void) | |
280 | { | |
281 | struct target_ops *t; | |
282 | ||
283 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
284 | if (t->to_has_all_memory (t)) | |
285 | return 1; | |
286 | ||
287 | return 0; | |
288 | } | |
289 | ||
290 | int | |
291 | target_has_memory_1 (void) | |
292 | { | |
293 | struct target_ops *t; | |
294 | ||
295 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
296 | if (t->to_has_memory (t)) | |
297 | return 1; | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
302 | int | |
303 | target_has_stack_1 (void) | |
304 | { | |
305 | struct target_ops *t; | |
306 | ||
307 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
308 | if (t->to_has_stack (t)) | |
309 | return 1; | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | int | |
315 | target_has_registers_1 (void) | |
316 | { | |
317 | struct target_ops *t; | |
318 | ||
319 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
320 | if (t->to_has_registers (t)) | |
321 | return 1; | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | int | |
327 | target_has_execution_1 (void) | |
328 | { | |
329 | struct target_ops *t; | |
330 | ||
331 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
332 | if (t->to_has_execution (t)) | |
333 | return 1; | |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
c906108c SS |
338 | /* Add a possible target architecture to the list. */ |
339 | ||
340 | void | |
fba45db2 | 341 | add_target (struct target_ops *t) |
c906108c | 342 | { |
0088c768 | 343 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
344 | if (t->to_xfer_partial == NULL) |
345 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 346 | |
c35b1492 PA |
347 | if (t->to_has_all_memory == NULL) |
348 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
349 | ||
350 | if (t->to_has_memory == NULL) | |
351 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
352 | ||
353 | if (t->to_has_stack == NULL) | |
354 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
355 | ||
356 | if (t->to_has_registers == NULL) | |
357 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
358 | ||
359 | if (t->to_has_execution == NULL) | |
360 | t->to_has_execution = (int (*) (struct target_ops *)) return_zero; | |
361 | ||
c906108c SS |
362 | if (!target_structs) |
363 | { | |
364 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
365 | target_structs = (struct target_ops **) xmalloc | |
366 | (target_struct_allocsize * sizeof (*target_structs)); | |
367 | } | |
368 | if (target_struct_size >= target_struct_allocsize) | |
369 | { | |
370 | target_struct_allocsize *= 2; | |
371 | target_structs = (struct target_ops **) | |
c5aa993b JM |
372 | xrealloc ((char *) target_structs, |
373 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
374 | } |
375 | target_structs[target_struct_size++] = t; | |
c906108c SS |
376 | |
377 | if (targetlist == NULL) | |
1bedd215 AC |
378 | add_prefix_cmd ("target", class_run, target_command, _("\ |
379 | Connect to a target machine or process.\n\ | |
c906108c SS |
380 | The first argument is the type or protocol of the target machine.\n\ |
381 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
382 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 383 | `help target ' followed by the protocol name."), |
c906108c SS |
384 | &targetlist, "target ", 0, &cmdlist); |
385 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
386 | } | |
387 | ||
388 | /* Stub functions */ | |
389 | ||
390 | void | |
fba45db2 | 391 | target_ignore (void) |
c906108c SS |
392 | { |
393 | } | |
394 | ||
7d85a9c0 JB |
395 | void |
396 | target_kill (void) | |
397 | { | |
398 | struct target_ops *t; | |
399 | ||
400 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
401 | if (t->to_kill != NULL) | |
402 | { | |
403 | if (targetdebug) | |
404 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
405 | ||
406 | t->to_kill (t); | |
407 | return; | |
408 | } | |
409 | ||
410 | noprocess (); | |
411 | } | |
412 | ||
11cf8741 JM |
413 | void |
414 | target_load (char *arg, int from_tty) | |
415 | { | |
4930751a | 416 | dcache_invalidate (target_dcache); |
11cf8741 JM |
417 | (*current_target.to_load) (arg, from_tty); |
418 | } | |
419 | ||
947b8855 PA |
420 | void |
421 | target_create_inferior (char *exec_file, char *args, | |
422 | char **env, int from_tty) | |
136d6dae VP |
423 | { |
424 | struct target_ops *t; | |
425 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
426 | { | |
427 | if (t->to_create_inferior != NULL) | |
428 | { | |
429 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
430 | if (targetdebug) |
431 | fprintf_unfiltered (gdb_stdlog, | |
432 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
433 | exec_file, args, from_tty); | |
136d6dae VP |
434 | return; |
435 | } | |
436 | } | |
437 | ||
438 | internal_error (__FILE__, __LINE__, | |
439 | "could not find a target to create inferior"); | |
440 | } | |
441 | ||
d9d2d8b6 PA |
442 | void |
443 | target_terminal_inferior (void) | |
444 | { | |
445 | /* A background resume (``run&'') should leave GDB in control of the | |
446 | terminal. */ | |
447 | if (target_is_async_p () && !sync_execution) | |
448 | return; | |
449 | ||
450 | /* If GDB is resuming the inferior in the foreground, install | |
451 | inferior's terminal modes. */ | |
452 | (*current_target.to_terminal_inferior) (); | |
453 | } | |
136d6dae | 454 | |
c906108c | 455 | static int |
fba45db2 KB |
456 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
457 | struct target_ops *t) | |
c906108c | 458 | { |
c5aa993b JM |
459 | errno = EIO; /* Can't read/write this location */ |
460 | return 0; /* No bytes handled */ | |
c906108c SS |
461 | } |
462 | ||
463 | static void | |
fba45db2 | 464 | tcomplain (void) |
c906108c | 465 | { |
8a3fe4f8 | 466 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
467 | current_target.to_shortname); |
468 | } | |
469 | ||
470 | void | |
fba45db2 | 471 | noprocess (void) |
c906108c | 472 | { |
8a3fe4f8 | 473 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
474 | } |
475 | ||
c906108c | 476 | static int |
fba45db2 | 477 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 478 | { |
c5aa993b | 479 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
480 | } |
481 | ||
392a587b | 482 | static void |
fba45db2 | 483 | nosupport_runtime (void) |
c906108c | 484 | { |
39f77062 | 485 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
486 | noprocess (); |
487 | else | |
8a3fe4f8 | 488 | error (_("No run-time support for this")); |
c906108c SS |
489 | } |
490 | ||
491 | ||
c906108c | 492 | static void |
fba45db2 | 493 | default_terminal_info (char *args, int from_tty) |
c906108c | 494 | { |
a3f17187 | 495 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
496 | } |
497 | ||
498 | /* This is the default target_create_inferior and target_attach function. | |
499 | If the current target is executing, it asks whether to kill it off. | |
500 | If this function returns without calling error(), it has killed off | |
501 | the target, and the operation should be attempted. */ | |
502 | ||
503 | static void | |
fba45db2 | 504 | kill_or_be_killed (int from_tty) |
c906108c SS |
505 | { |
506 | if (target_has_execution) | |
507 | { | |
a3f17187 | 508 | printf_unfiltered (_("You are already running a program:\n")); |
c906108c | 509 | target_files_info (); |
9e2f0ad4 | 510 | if (query (_("Kill it? "))) |
c5aa993b JM |
511 | { |
512 | target_kill (); | |
513 | if (target_has_execution) | |
8a3fe4f8 | 514 | error (_("Killing the program did not help.")); |
c5aa993b JM |
515 | return; |
516 | } | |
517 | else | |
518 | { | |
8a3fe4f8 | 519 | error (_("Program not killed.")); |
c5aa993b | 520 | } |
c906108c | 521 | } |
c5aa993b | 522 | tcomplain (); |
c906108c SS |
523 | } |
524 | ||
0ef643c8 JB |
525 | /* A default implementation for the to_get_ada_task_ptid target method. |
526 | ||
527 | This function builds the PTID by using both LWP and TID as part of | |
528 | the PTID lwp and tid elements. The pid used is the pid of the | |
529 | inferior_ptid. */ | |
530 | ||
2c0b251b | 531 | static ptid_t |
0ef643c8 JB |
532 | default_get_ada_task_ptid (long lwp, long tid) |
533 | { | |
534 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
535 | } | |
536 | ||
7998dfc3 AC |
537 | /* Go through the target stack from top to bottom, copying over zero |
538 | entries in current_target, then filling in still empty entries. In | |
539 | effect, we are doing class inheritance through the pushed target | |
540 | vectors. | |
541 | ||
542 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
543 | is currently implemented, is that it discards any knowledge of | |
544 | which target an inherited method originally belonged to. | |
545 | Consequently, new new target methods should instead explicitly and | |
546 | locally search the target stack for the target that can handle the | |
547 | request. */ | |
c906108c SS |
548 | |
549 | static void | |
7998dfc3 | 550 | update_current_target (void) |
c906108c | 551 | { |
7998dfc3 AC |
552 | struct target_ops *t; |
553 | ||
08d8bcd7 | 554 | /* First, reset current's contents. */ |
7998dfc3 AC |
555 | memset (¤t_target, 0, sizeof (current_target)); |
556 | ||
557 | #define INHERIT(FIELD, TARGET) \ | |
558 | if (!current_target.FIELD) \ | |
559 | current_target.FIELD = (TARGET)->FIELD | |
560 | ||
561 | for (t = target_stack; t; t = t->beneath) | |
562 | { | |
563 | INHERIT (to_shortname, t); | |
564 | INHERIT (to_longname, t); | |
565 | INHERIT (to_doc, t); | |
b52323fa UW |
566 | /* Do not inherit to_open. */ |
567 | /* Do not inherit to_close. */ | |
136d6dae | 568 | /* Do not inherit to_attach. */ |
7998dfc3 | 569 | INHERIT (to_post_attach, t); |
dc177b7a | 570 | INHERIT (to_attach_no_wait, t); |
136d6dae | 571 | /* Do not inherit to_detach. */ |
597320e7 | 572 | /* Do not inherit to_disconnect. */ |
28439f5e | 573 | /* Do not inherit to_resume. */ |
117de6a9 | 574 | /* Do not inherit to_wait. */ |
28439f5e PA |
575 | /* Do not inherit to_fetch_registers. */ |
576 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 577 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 578 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
579 | INHERIT (to_files_info, t); |
580 | INHERIT (to_insert_breakpoint, t); | |
581 | INHERIT (to_remove_breakpoint, t); | |
582 | INHERIT (to_can_use_hw_breakpoint, t); | |
583 | INHERIT (to_insert_hw_breakpoint, t); | |
584 | INHERIT (to_remove_hw_breakpoint, t); | |
585 | INHERIT (to_insert_watchpoint, t); | |
586 | INHERIT (to_remove_watchpoint, t); | |
587 | INHERIT (to_stopped_data_address, t); | |
74174d2e | 588 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 589 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
590 | INHERIT (to_stopped_by_watchpoint, t); |
591 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 592 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
7998dfc3 AC |
593 | INHERIT (to_terminal_init, t); |
594 | INHERIT (to_terminal_inferior, t); | |
595 | INHERIT (to_terminal_ours_for_output, t); | |
596 | INHERIT (to_terminal_ours, t); | |
597 | INHERIT (to_terminal_save_ours, t); | |
598 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 599 | /* Do not inherit to_kill. */ |
7998dfc3 AC |
600 | INHERIT (to_load, t); |
601 | INHERIT (to_lookup_symbol, t); | |
136d6dae | 602 | /* Do no inherit to_create_inferior. */ |
7998dfc3 AC |
603 | INHERIT (to_post_startup_inferior, t); |
604 | INHERIT (to_acknowledge_created_inferior, t); | |
605 | INHERIT (to_insert_fork_catchpoint, t); | |
606 | INHERIT (to_remove_fork_catchpoint, t); | |
607 | INHERIT (to_insert_vfork_catchpoint, t); | |
608 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 609 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
610 | INHERIT (to_insert_exec_catchpoint, t); |
611 | INHERIT (to_remove_exec_catchpoint, t); | |
7998dfc3 | 612 | INHERIT (to_has_exited, t); |
117de6a9 | 613 | /* Do not inherit to_mourn_inferiour. */ |
7998dfc3 AC |
614 | INHERIT (to_can_run, t); |
615 | INHERIT (to_notice_signals, t); | |
28439f5e PA |
616 | /* Do not inherit to_thread_alive. */ |
617 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 618 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 AC |
619 | INHERIT (to_extra_thread_info, t); |
620 | INHERIT (to_stop, t); | |
4b8a223f | 621 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 622 | INHERIT (to_rcmd, t); |
7998dfc3 | 623 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 624 | INHERIT (to_log_command, t); |
7998dfc3 | 625 | INHERIT (to_stratum, t); |
c35b1492 PA |
626 | /* Do not inherit to_has_all_memory */ |
627 | /* Do not inherit to_has_memory */ | |
628 | /* Do not inherit to_has_stack */ | |
629 | /* Do not inherit to_has_registers */ | |
630 | /* Do not inherit to_has_execution */ | |
7998dfc3 | 631 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
632 | INHERIT (to_can_async_p, t); |
633 | INHERIT (to_is_async_p, t); | |
634 | INHERIT (to_async, t); | |
b84876c2 | 635 | INHERIT (to_async_mask, t); |
7998dfc3 AC |
636 | INHERIT (to_find_memory_regions, t); |
637 | INHERIT (to_make_corefile_notes, t); | |
117de6a9 | 638 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 639 | INHERIT (to_can_execute_reverse, t); |
c2250ad1 | 640 | INHERIT (to_thread_architecture, t); |
424163ea | 641 | /* Do not inherit to_read_description. */ |
0ef643c8 | 642 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 643 | /* Do not inherit to_search_memory. */ |
8a305172 | 644 | INHERIT (to_supports_multi_process, t); |
7998dfc3 | 645 | INHERIT (to_magic, t); |
fd79ecee | 646 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
647 | /* Do not inherit to_flash_erase. */ |
648 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
649 | } |
650 | #undef INHERIT | |
651 | ||
652 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
653 | it. Some entries are defaulted to a method that print an error, |
654 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
655 | |
656 | #define de_fault(field, value) \ | |
7998dfc3 AC |
657 | if (!current_target.field) \ |
658 | current_target.field = value | |
0d06e24b | 659 | |
2bc416ba DJ |
660 | de_fault (to_open, |
661 | (void (*) (char *, int)) | |
0d06e24b | 662 | tcomplain); |
2bc416ba DJ |
663 | de_fault (to_close, |
664 | (void (*) (int)) | |
0d06e24b | 665 | target_ignore); |
2bc416ba DJ |
666 | de_fault (to_post_attach, |
667 | (void (*) (int)) | |
0d06e24b | 668 | target_ignore); |
2bc416ba | 669 | de_fault (to_prepare_to_store, |
316f2060 | 670 | (void (*) (struct regcache *)) |
0d06e24b | 671 | noprocess); |
2bc416ba DJ |
672 | de_fault (deprecated_xfer_memory, |
673 | (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 674 | nomemory); |
2bc416ba DJ |
675 | de_fault (to_files_info, |
676 | (void (*) (struct target_ops *)) | |
0d06e24b | 677 | target_ignore); |
2bc416ba | 678 | de_fault (to_insert_breakpoint, |
0d06e24b | 679 | memory_insert_breakpoint); |
2bc416ba | 680 | de_fault (to_remove_breakpoint, |
0d06e24b | 681 | memory_remove_breakpoint); |
ccaa32c7 GS |
682 | de_fault (to_can_use_hw_breakpoint, |
683 | (int (*) (int, int, int)) | |
684 | return_zero); | |
685 | de_fault (to_insert_hw_breakpoint, | |
a6d9a66e | 686 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
687 | return_minus_one); |
688 | de_fault (to_remove_hw_breakpoint, | |
a6d9a66e | 689 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
690 | return_minus_one); |
691 | de_fault (to_insert_watchpoint, | |
692 | (int (*) (CORE_ADDR, int, int)) | |
693 | return_minus_one); | |
694 | de_fault (to_remove_watchpoint, | |
695 | (int (*) (CORE_ADDR, int, int)) | |
696 | return_minus_one); | |
697 | de_fault (to_stopped_by_watchpoint, | |
698 | (int (*) (void)) | |
699 | return_zero); | |
700 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 701 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 702 | return_zero); |
5009afc5 AS |
703 | de_fault (to_watchpoint_addr_within_range, |
704 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
705 | de_fault (to_region_ok_for_hw_watchpoint, |
706 | default_region_ok_for_hw_watchpoint); | |
2bc416ba DJ |
707 | de_fault (to_terminal_init, |
708 | (void (*) (void)) | |
0d06e24b | 709 | target_ignore); |
2bc416ba DJ |
710 | de_fault (to_terminal_inferior, |
711 | (void (*) (void)) | |
0d06e24b | 712 | target_ignore); |
2bc416ba DJ |
713 | de_fault (to_terminal_ours_for_output, |
714 | (void (*) (void)) | |
0d06e24b | 715 | target_ignore); |
2bc416ba DJ |
716 | de_fault (to_terminal_ours, |
717 | (void (*) (void)) | |
0d06e24b | 718 | target_ignore); |
2bc416ba DJ |
719 | de_fault (to_terminal_save_ours, |
720 | (void (*) (void)) | |
a790ad35 | 721 | target_ignore); |
2bc416ba | 722 | de_fault (to_terminal_info, |
0d06e24b | 723 | default_terminal_info); |
2bc416ba DJ |
724 | de_fault (to_load, |
725 | (void (*) (char *, int)) | |
0d06e24b | 726 | tcomplain); |
2bc416ba DJ |
727 | de_fault (to_lookup_symbol, |
728 | (int (*) (char *, CORE_ADDR *)) | |
0d06e24b | 729 | nosymbol); |
2bc416ba DJ |
730 | de_fault (to_post_startup_inferior, |
731 | (void (*) (ptid_t)) | |
0d06e24b | 732 | target_ignore); |
2bc416ba DJ |
733 | de_fault (to_acknowledge_created_inferior, |
734 | (void (*) (int)) | |
0d06e24b | 735 | target_ignore); |
2bc416ba DJ |
736 | de_fault (to_insert_fork_catchpoint, |
737 | (void (*) (int)) | |
0d06e24b | 738 | tcomplain); |
2bc416ba DJ |
739 | de_fault (to_remove_fork_catchpoint, |
740 | (int (*) (int)) | |
0d06e24b | 741 | tcomplain); |
2bc416ba DJ |
742 | de_fault (to_insert_vfork_catchpoint, |
743 | (void (*) (int)) | |
0d06e24b | 744 | tcomplain); |
2bc416ba DJ |
745 | de_fault (to_remove_vfork_catchpoint, |
746 | (int (*) (int)) | |
0d06e24b | 747 | tcomplain); |
2bc416ba DJ |
748 | de_fault (to_insert_exec_catchpoint, |
749 | (void (*) (int)) | |
0d06e24b | 750 | tcomplain); |
2bc416ba DJ |
751 | de_fault (to_remove_exec_catchpoint, |
752 | (int (*) (int)) | |
0d06e24b | 753 | tcomplain); |
2bc416ba DJ |
754 | de_fault (to_has_exited, |
755 | (int (*) (int, int, int *)) | |
0d06e24b | 756 | return_zero); |
2bc416ba | 757 | de_fault (to_can_run, |
0d06e24b | 758 | return_zero); |
2bc416ba DJ |
759 | de_fault (to_notice_signals, |
760 | (void (*) (ptid_t)) | |
0d06e24b | 761 | target_ignore); |
2bc416ba DJ |
762 | de_fault (to_extra_thread_info, |
763 | (char *(*) (struct thread_info *)) | |
0d06e24b | 764 | return_zero); |
2bc416ba | 765 | de_fault (to_stop, |
94cc34af | 766 | (void (*) (ptid_t)) |
0d06e24b | 767 | target_ignore); |
cf7a04e8 | 768 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
769 | de_fault (to_rcmd, |
770 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 771 | tcomplain); |
2bc416ba DJ |
772 | de_fault (to_pid_to_exec_file, |
773 | (char *(*) (int)) | |
0d06e24b | 774 | return_zero); |
2bc416ba DJ |
775 | de_fault (to_async, |
776 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 777 | tcomplain); |
b84876c2 PA |
778 | de_fault (to_async_mask, |
779 | (int (*) (int)) | |
780 | return_one); | |
c2250ad1 UW |
781 | de_fault (to_thread_architecture, |
782 | default_thread_architecture); | |
424163ea | 783 | current_target.to_read_description = NULL; |
0ef643c8 JB |
784 | de_fault (to_get_ada_task_ptid, |
785 | (ptid_t (*) (long, long)) | |
786 | default_get_ada_task_ptid); | |
8a305172 PA |
787 | de_fault (to_supports_multi_process, |
788 | (int (*) (void)) | |
789 | return_zero); | |
c906108c | 790 | #undef de_fault |
c906108c | 791 | |
7998dfc3 AC |
792 | /* Finally, position the target-stack beneath the squashed |
793 | "current_target". That way code looking for a non-inherited | |
794 | target method can quickly and simply find it. */ | |
795 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
796 | |
797 | if (targetdebug) | |
798 | setup_target_debug (); | |
c906108c SS |
799 | } |
800 | ||
801 | /* Push a new target type into the stack of the existing target accessors, | |
802 | possibly superseding some of the existing accessors. | |
803 | ||
804 | Result is zero if the pushed target ended up on top of the stack, | |
805 | nonzero if at least one target is on top of it. | |
806 | ||
807 | Rather than allow an empty stack, we always have the dummy target at | |
808 | the bottom stratum, so we can call the function vectors without | |
809 | checking them. */ | |
810 | ||
811 | int | |
fba45db2 | 812 | push_target (struct target_ops *t) |
c906108c | 813 | { |
258b763a | 814 | struct target_ops **cur; |
c906108c SS |
815 | |
816 | /* Check magic number. If wrong, it probably means someone changed | |
817 | the struct definition, but not all the places that initialize one. */ | |
818 | if (t->to_magic != OPS_MAGIC) | |
819 | { | |
c5aa993b JM |
820 | fprintf_unfiltered (gdb_stderr, |
821 | "Magic number of %s target struct wrong\n", | |
822 | t->to_shortname); | |
e2e0b3e5 | 823 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
824 | } |
825 | ||
258b763a AC |
826 | /* Find the proper stratum to install this target in. */ |
827 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 828 | { |
258b763a | 829 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
830 | break; |
831 | } | |
832 | ||
258b763a | 833 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 834 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
835 | targets to CUR, and not just those at this stratum level. */ |
836 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
837 | { | |
838 | /* There's already something at this stratum level. Close it, | |
839 | and un-hook it from the stack. */ | |
840 | struct target_ops *tmp = (*cur); | |
841 | (*cur) = (*cur)->beneath; | |
842 | tmp->beneath = NULL; | |
f1c07ab0 | 843 | target_close (tmp, 0); |
258b763a | 844 | } |
c906108c SS |
845 | |
846 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
847 | t->beneath = (*cur); |
848 | (*cur) = t; | |
c906108c SS |
849 | |
850 | update_current_target (); | |
851 | ||
258b763a AC |
852 | /* Not on top? */ |
853 | return (t != target_stack); | |
c906108c SS |
854 | } |
855 | ||
2bc416ba | 856 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
857 | Return how many times it was removed (0 or 1). */ |
858 | ||
859 | int | |
fba45db2 | 860 | unpush_target (struct target_ops *t) |
c906108c | 861 | { |
258b763a AC |
862 | struct target_ops **cur; |
863 | struct target_ops *tmp; | |
c906108c | 864 | |
c8d104ad PA |
865 | if (t->to_stratum == dummy_stratum) |
866 | internal_error (__FILE__, __LINE__, | |
867 | "Attempt to unpush the dummy target"); | |
868 | ||
c906108c SS |
869 | /* Look for the specified target. Note that we assume that a target |
870 | can only occur once in the target stack. */ | |
871 | ||
258b763a AC |
872 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
873 | { | |
874 | if ((*cur) == t) | |
875 | break; | |
876 | } | |
c906108c | 877 | |
258b763a | 878 | if ((*cur) == NULL) |
c906108c SS |
879 | return 0; /* Didn't find target_ops, quit now */ |
880 | ||
5269965e AC |
881 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
882 | unconditional by moving it to before the above check that the | |
883 | target was in the target stack (something about "Change the way | |
884 | pushing and popping of targets work to support target overlays | |
885 | and inheritance"). This doesn't make much sense - only open | |
886 | targets should be closed. */ | |
887 | target_close (t, 0); | |
888 | ||
c906108c | 889 | /* Unchain the target */ |
258b763a AC |
890 | tmp = (*cur); |
891 | (*cur) = (*cur)->beneath; | |
892 | tmp->beneath = NULL; | |
c906108c SS |
893 | |
894 | update_current_target (); | |
c906108c SS |
895 | |
896 | return 1; | |
897 | } | |
898 | ||
899 | void | |
fba45db2 | 900 | pop_target (void) |
c906108c | 901 | { |
b52323fa | 902 | target_close (target_stack, 0); /* Let it clean up */ |
258b763a | 903 | if (unpush_target (target_stack) == 1) |
c906108c SS |
904 | return; |
905 | ||
c5aa993b JM |
906 | fprintf_unfiltered (gdb_stderr, |
907 | "pop_target couldn't find target %s\n", | |
908 | current_target.to_shortname); | |
e2e0b3e5 | 909 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
910 | } |
911 | ||
aa76d38d | 912 | void |
87ab71f0 | 913 | pop_all_targets_above (enum strata above_stratum, int quitting) |
aa76d38d | 914 | { |
87ab71f0 | 915 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 916 | { |
b52323fa | 917 | target_close (target_stack, quitting); |
aa76d38d PA |
918 | if (!unpush_target (target_stack)) |
919 | { | |
920 | fprintf_unfiltered (gdb_stderr, | |
921 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 922 | target_stack->to_shortname); |
aa76d38d PA |
923 | internal_error (__FILE__, __LINE__, |
924 | _("failed internal consistency check")); | |
925 | break; | |
926 | } | |
927 | } | |
928 | } | |
929 | ||
87ab71f0 PA |
930 | void |
931 | pop_all_targets (int quitting) | |
932 | { | |
933 | pop_all_targets_above (dummy_stratum, quitting); | |
934 | } | |
935 | ||
72f5cf0e | 936 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
937 | current thread's thread-local storage with offset OFFSET. */ |
938 | CORE_ADDR | |
939 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
940 | { | |
941 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
942 | struct target_ops *target; |
943 | ||
944 | for (target = current_target.beneath; | |
945 | target != NULL; | |
946 | target = target->beneath) | |
947 | { | |
948 | if (target->to_get_thread_local_address != NULL) | |
949 | break; | |
950 | } | |
9e35dae4 | 951 | |
117de6a9 | 952 | if (target != NULL |
1cf3db46 | 953 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch)) |
9e35dae4 DJ |
954 | { |
955 | ptid_t ptid = inferior_ptid; | |
956 | volatile struct gdb_exception ex; | |
957 | ||
958 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
959 | { | |
960 | CORE_ADDR lm_addr; | |
961 | ||
962 | /* Fetch the load module address for this objfile. */ | |
1cf3db46 | 963 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch, |
9e35dae4 DJ |
964 | objfile); |
965 | /* If it's 0, throw the appropriate exception. */ | |
966 | if (lm_addr == 0) | |
967 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
968 | _("TLS load module not found")); | |
969 | ||
117de6a9 | 970 | addr = target->to_get_thread_local_address (target, ptid, lm_addr, offset); |
9e35dae4 DJ |
971 | } |
972 | /* If an error occurred, print TLS related messages here. Otherwise, | |
973 | throw the error to some higher catcher. */ | |
974 | if (ex.reason < 0) | |
975 | { | |
976 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
977 | ||
978 | switch (ex.error) | |
979 | { | |
980 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
981 | error (_("Cannot find thread-local variables in this thread library.")); | |
982 | break; | |
983 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
984 | if (objfile_is_library) | |
985 | error (_("Cannot find shared library `%s' in dynamic" | |
986 | " linker's load module list"), objfile->name); | |
987 | else | |
988 | error (_("Cannot find executable file `%s' in dynamic" | |
989 | " linker's load module list"), objfile->name); | |
990 | break; | |
991 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
992 | if (objfile_is_library) | |
993 | error (_("The inferior has not yet allocated storage for" | |
994 | " thread-local variables in\n" | |
995 | "the shared library `%s'\n" | |
996 | "for %s"), | |
997 | objfile->name, target_pid_to_str (ptid)); | |
998 | else | |
999 | error (_("The inferior has not yet allocated storage for" | |
1000 | " thread-local variables in\n" | |
1001 | "the executable `%s'\n" | |
1002 | "for %s"), | |
1003 | objfile->name, target_pid_to_str (ptid)); | |
1004 | break; | |
1005 | case TLS_GENERIC_ERROR: | |
1006 | if (objfile_is_library) | |
1007 | error (_("Cannot find thread-local storage for %s, " | |
1008 | "shared library %s:\n%s"), | |
1009 | target_pid_to_str (ptid), | |
1010 | objfile->name, ex.message); | |
1011 | else | |
1012 | error (_("Cannot find thread-local storage for %s, " | |
1013 | "executable file %s:\n%s"), | |
1014 | target_pid_to_str (ptid), | |
1015 | objfile->name, ex.message); | |
1016 | break; | |
1017 | default: | |
1018 | throw_exception (ex); | |
1019 | break; | |
1020 | } | |
1021 | } | |
1022 | } | |
1023 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1024 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1025 | else | |
1026 | error (_("Cannot find thread-local variables on this target")); | |
1027 | ||
1028 | return addr; | |
1029 | } | |
1030 | ||
c906108c SS |
1031 | #undef MIN |
1032 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1033 | ||
1034 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1035 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1036 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1037 | is responsible for freeing it. Return the number of bytes successfully | |
1038 | read. */ | |
1039 | ||
1040 | int | |
fba45db2 | 1041 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
1042 | { |
1043 | int tlen, origlen, offset, i; | |
1b0ba102 | 1044 | gdb_byte buf[4]; |
c906108c SS |
1045 | int errcode = 0; |
1046 | char *buffer; | |
1047 | int buffer_allocated; | |
1048 | char *bufptr; | |
1049 | unsigned int nbytes_read = 0; | |
1050 | ||
6217bf3e MS |
1051 | gdb_assert (string); |
1052 | ||
c906108c SS |
1053 | /* Small for testing. */ |
1054 | buffer_allocated = 4; | |
1055 | buffer = xmalloc (buffer_allocated); | |
1056 | bufptr = buffer; | |
1057 | ||
1058 | origlen = len; | |
1059 | ||
1060 | while (len > 0) | |
1061 | { | |
1062 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1063 | offset = memaddr & 3; | |
1064 | ||
1b0ba102 | 1065 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1066 | if (errcode != 0) |
1067 | { | |
1068 | /* The transfer request might have crossed the boundary to an | |
1069 | unallocated region of memory. Retry the transfer, requesting | |
1070 | a single byte. */ | |
1071 | tlen = 1; | |
1072 | offset = 0; | |
b8eb5af0 | 1073 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1074 | if (errcode != 0) |
1075 | goto done; | |
1076 | } | |
1077 | ||
1078 | if (bufptr - buffer + tlen > buffer_allocated) | |
1079 | { | |
1080 | unsigned int bytes; | |
1081 | bytes = bufptr - buffer; | |
1082 | buffer_allocated *= 2; | |
1083 | buffer = xrealloc (buffer, buffer_allocated); | |
1084 | bufptr = buffer + bytes; | |
1085 | } | |
1086 | ||
1087 | for (i = 0; i < tlen; i++) | |
1088 | { | |
1089 | *bufptr++ = buf[i + offset]; | |
1090 | if (buf[i + offset] == '\000') | |
1091 | { | |
1092 | nbytes_read += i + 1; | |
1093 | goto done; | |
1094 | } | |
1095 | } | |
1096 | ||
1097 | memaddr += tlen; | |
1098 | len -= tlen; | |
1099 | nbytes_read += tlen; | |
1100 | } | |
c5aa993b | 1101 | done: |
6217bf3e | 1102 | *string = buffer; |
c906108c SS |
1103 | if (errnop != NULL) |
1104 | *errnop = errcode; | |
c906108c SS |
1105 | return nbytes_read; |
1106 | } | |
1107 | ||
07b82ea5 PA |
1108 | struct target_section_table * |
1109 | target_get_section_table (struct target_ops *target) | |
1110 | { | |
1111 | struct target_ops *t; | |
1112 | ||
1113 | if (targetdebug) | |
1114 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1115 | ||
1116 | for (t = target; t != NULL; t = t->beneath) | |
1117 | if (t->to_get_section_table != NULL) | |
1118 | return (*t->to_get_section_table) (t); | |
1119 | ||
1120 | return NULL; | |
1121 | } | |
1122 | ||
8db32d44 | 1123 | /* Find a section containing ADDR. */ |
07b82ea5 | 1124 | |
0542c86d | 1125 | struct target_section * |
8db32d44 AC |
1126 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1127 | { | |
07b82ea5 | 1128 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1129 | struct target_section *secp; |
07b82ea5 PA |
1130 | |
1131 | if (table == NULL) | |
1132 | return NULL; | |
1133 | ||
1134 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1135 | { |
1136 | if (addr >= secp->addr && addr < secp->endaddr) | |
1137 | return secp; | |
1138 | } | |
1139 | return NULL; | |
1140 | } | |
1141 | ||
cf7a04e8 DJ |
1142 | /* Perform a partial memory transfer. The arguments and return |
1143 | value are just as for target_xfer_partial. */ | |
1144 | ||
1145 | static LONGEST | |
1146 | memory_xfer_partial (struct target_ops *ops, void *readbuf, const void *writebuf, | |
1147 | ULONGEST memaddr, LONGEST len) | |
0779438d | 1148 | { |
cf7a04e8 DJ |
1149 | LONGEST res; |
1150 | int reg_len; | |
1151 | struct mem_region *region; | |
1152 | ||
1153 | /* Zero length requests are ok and require no work. */ | |
1154 | if (len == 0) | |
1155 | return 0; | |
1156 | ||
07b82ea5 PA |
1157 | /* For accesses to unmapped overlay sections, read directly from |
1158 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1159 | if (readbuf != NULL && overlay_debugging) | |
1160 | { | |
1161 | struct obj_section *section = find_pc_overlay (memaddr); | |
1162 | if (pc_in_unmapped_range (memaddr, section)) | |
1163 | { | |
1164 | struct target_section_table *table | |
1165 | = target_get_section_table (ops); | |
1166 | const char *section_name = section->the_bfd_section->name; | |
1167 | memaddr = overlay_mapped_address (memaddr, section); | |
1168 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1169 | memaddr, len, | |
1170 | table->sections, | |
1171 | table->sections_end, | |
1172 | section_name); | |
1173 | } | |
1174 | } | |
1175 | ||
1176 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1177 | if (readbuf != NULL && trust_readonly) |
1178 | { | |
0542c86d | 1179 | struct target_section *secp; |
07b82ea5 | 1180 | struct target_section_table *table; |
cf7a04e8 DJ |
1181 | |
1182 | secp = target_section_by_addr (ops, memaddr); | |
1183 | if (secp != NULL | |
1184 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1185 | & SEC_READONLY)) | |
07b82ea5 PA |
1186 | { |
1187 | table = target_get_section_table (ops); | |
1188 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1189 | memaddr, len, | |
1190 | table->sections, | |
1191 | table->sections_end, | |
1192 | NULL); | |
1193 | } | |
98646950 UW |
1194 | } |
1195 | ||
cf7a04e8 DJ |
1196 | /* Try GDB's internal data cache. */ |
1197 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1198 | /* region->hi == 0 means there's no upper bound. */ |
1199 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1200 | reg_len = len; |
1201 | else | |
1202 | reg_len = region->hi - memaddr; | |
1203 | ||
1204 | switch (region->attrib.mode) | |
1205 | { | |
1206 | case MEM_RO: | |
1207 | if (writebuf != NULL) | |
1208 | return -1; | |
1209 | break; | |
1210 | ||
1211 | case MEM_WO: | |
1212 | if (readbuf != NULL) | |
1213 | return -1; | |
1214 | break; | |
a76d924d DJ |
1215 | |
1216 | case MEM_FLASH: | |
1217 | /* We only support writing to flash during "load" for now. */ | |
1218 | if (writebuf != NULL) | |
1219 | error (_("Writing to flash memory forbidden in this context")); | |
1220 | break; | |
4b5752d0 VP |
1221 | |
1222 | case MEM_NONE: | |
1223 | return -1; | |
cf7a04e8 DJ |
1224 | } |
1225 | ||
1226 | if (region->attrib.cache) | |
1227 | { | |
1228 | /* FIXME drow/2006-08-09: This call discards OPS, so the raw | |
1229 | memory request will start back at current_target. */ | |
1230 | if (readbuf != NULL) | |
1231 | res = dcache_xfer_memory (target_dcache, memaddr, readbuf, | |
1232 | reg_len, 0); | |
1233 | else | |
1234 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1235 | correctness dcache_xfer_memory should take readbuf and | |
1236 | writebuf. */ | |
1237 | res = dcache_xfer_memory (target_dcache, memaddr, | |
1238 | (void *) writebuf, | |
1239 | reg_len, 1); | |
1240 | if (res <= 0) | |
1241 | return -1; | |
1242 | else | |
8defab1a DJ |
1243 | { |
1244 | if (readbuf && !show_memory_breakpoints) | |
1245 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1246 | return res; | |
1247 | } | |
cf7a04e8 DJ |
1248 | } |
1249 | ||
1250 | /* If none of those methods found the memory we wanted, fall back | |
1251 | to a target partial transfer. Normally a single call to | |
1252 | to_xfer_partial is enough; if it doesn't recognize an object | |
1253 | it will call the to_xfer_partial of the next target down. | |
1254 | But for memory this won't do. Memory is the only target | |
1255 | object which can be read from more than one valid target. | |
1256 | A core file, for instance, could have some of memory but | |
1257 | delegate other bits to the target below it. So, we must | |
1258 | manually try all targets. */ | |
1259 | ||
1260 | do | |
1261 | { | |
1262 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1263 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1264 | if (res > 0) |
8defab1a | 1265 | break; |
cf7a04e8 | 1266 | |
5ad3a4ca DJ |
1267 | /* We want to continue past core files to executables, but not |
1268 | past a running target's memory. */ | |
c35b1492 | 1269 | if (ops->to_has_all_memory (ops)) |
8defab1a | 1270 | break; |
5ad3a4ca | 1271 | |
cf7a04e8 DJ |
1272 | ops = ops->beneath; |
1273 | } | |
1274 | while (ops != NULL); | |
1275 | ||
8defab1a DJ |
1276 | if (readbuf && !show_memory_breakpoints) |
1277 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1278 | ||
cf7a04e8 DJ |
1279 | /* If we still haven't got anything, return the last error. We |
1280 | give up. */ | |
1281 | return res; | |
0779438d AC |
1282 | } |
1283 | ||
8defab1a DJ |
1284 | static void |
1285 | restore_show_memory_breakpoints (void *arg) | |
1286 | { | |
1287 | show_memory_breakpoints = (uintptr_t) arg; | |
1288 | } | |
1289 | ||
1290 | struct cleanup * | |
1291 | make_show_memory_breakpoints_cleanup (int show) | |
1292 | { | |
1293 | int current = show_memory_breakpoints; | |
1294 | show_memory_breakpoints = show; | |
1295 | ||
1296 | return make_cleanup (restore_show_memory_breakpoints, | |
1297 | (void *) (uintptr_t) current); | |
1298 | } | |
1299 | ||
27394598 AC |
1300 | static LONGEST |
1301 | target_xfer_partial (struct target_ops *ops, | |
1302 | enum target_object object, const char *annex, | |
1303 | void *readbuf, const void *writebuf, | |
1304 | ULONGEST offset, LONGEST len) | |
1305 | { | |
1306 | LONGEST retval; | |
1307 | ||
1308 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 DJ |
1309 | |
1310 | /* If this is a memory transfer, let the memory-specific code | |
1311 | have a look at it instead. Memory transfers are more | |
1312 | complicated. */ | |
1313 | if (object == TARGET_OBJECT_MEMORY) | |
1314 | retval = memory_xfer_partial (ops, readbuf, writebuf, offset, len); | |
1315 | else | |
1316 | { | |
1317 | enum target_object raw_object = object; | |
1318 | ||
1319 | /* If this is a raw memory transfer, request the normal | |
1320 | memory object from other layers. */ | |
1321 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1322 | raw_object = TARGET_OBJECT_MEMORY; | |
1323 | ||
1324 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1325 | writebuf, offset, len); | |
1326 | } | |
1327 | ||
27394598 AC |
1328 | if (targetdebug) |
1329 | { | |
1330 | const unsigned char *myaddr = NULL; | |
1331 | ||
1332 | fprintf_unfiltered (gdb_stdlog, | |
53b71562 | 1333 | "%s:target_xfer_partial (%d, %s, %s, %s, %s, %s) = %s", |
27394598 AC |
1334 | ops->to_shortname, |
1335 | (int) object, | |
1336 | (annex ? annex : "(null)"), | |
53b71562 JB |
1337 | host_address_to_string (readbuf), |
1338 | host_address_to_string (writebuf), | |
0b1553bc UW |
1339 | core_addr_to_string_nz (offset), |
1340 | plongest (len), plongest (retval)); | |
27394598 AC |
1341 | |
1342 | if (readbuf) | |
1343 | myaddr = readbuf; | |
1344 | if (writebuf) | |
1345 | myaddr = writebuf; | |
1346 | if (retval > 0 && myaddr != NULL) | |
1347 | { | |
1348 | int i; | |
2bc416ba | 1349 | |
27394598 AC |
1350 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1351 | for (i = 0; i < retval; i++) | |
1352 | { | |
53b71562 | 1353 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1354 | { |
1355 | if (targetdebug < 2 && i > 0) | |
1356 | { | |
1357 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1358 | break; | |
1359 | } | |
1360 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1361 | } | |
2bc416ba | 1362 | |
27394598 AC |
1363 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1364 | } | |
1365 | } | |
2bc416ba | 1366 | |
27394598 AC |
1367 | fputc_unfiltered ('\n', gdb_stdlog); |
1368 | } | |
1369 | return retval; | |
1370 | } | |
1371 | ||
c906108c SS |
1372 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1373 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1374 | if any error occurs. | |
1375 | ||
1376 | If an error occurs, no guarantee is made about the contents of the data at | |
1377 | MYADDR. In particular, the caller should not depend upon partial reads | |
1378 | filling the buffer with good data. There is no way for the caller to know | |
1379 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 DJ |
1380 | deal with partial reads should call target_read (which will retry until |
1381 | it makes no progress, and then return how much was transferred). */ | |
c906108c SS |
1382 | |
1383 | int | |
fc1a4b47 | 1384 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 1385 | { |
c35b1492 PA |
1386 | /* Dispatch to the topmost target, not the flattened current_target. |
1387 | Memory accesses check target->to_has_(all_)memory, and the | |
1388 | flattened target doesn't inherit those. */ | |
1389 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1390 | myaddr, memaddr, len) == len) |
1391 | return 0; | |
0779438d | 1392 | else |
cf7a04e8 | 1393 | return EIO; |
c906108c SS |
1394 | } |
1395 | ||
c906108c | 1396 | int |
fc1a4b47 | 1397 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1398 | { |
c35b1492 PA |
1399 | /* Dispatch to the topmost target, not the flattened current_target. |
1400 | Memory accesses check target->to_has_(all_)memory, and the | |
1401 | flattened target doesn't inherit those. */ | |
1402 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1403 | myaddr, memaddr, len) == len) |
1404 | return 0; | |
0779438d | 1405 | else |
cf7a04e8 | 1406 | return EIO; |
c906108c | 1407 | } |
c5aa993b | 1408 | |
fd79ecee DJ |
1409 | /* Fetch the target's memory map. */ |
1410 | ||
1411 | VEC(mem_region_s) * | |
1412 | target_memory_map (void) | |
1413 | { | |
1414 | VEC(mem_region_s) *result; | |
1415 | struct mem_region *last_one, *this_one; | |
1416 | int ix; | |
1417 | struct target_ops *t; | |
1418 | ||
1419 | if (targetdebug) | |
1420 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1421 | ||
1422 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1423 | if (t->to_memory_map != NULL) | |
1424 | break; | |
1425 | ||
1426 | if (t == NULL) | |
1427 | return NULL; | |
1428 | ||
1429 | result = t->to_memory_map (t); | |
1430 | if (result == NULL) | |
1431 | return NULL; | |
1432 | ||
1433 | qsort (VEC_address (mem_region_s, result), | |
1434 | VEC_length (mem_region_s, result), | |
1435 | sizeof (struct mem_region), mem_region_cmp); | |
1436 | ||
1437 | /* Check that regions do not overlap. Simultaneously assign | |
1438 | a numbering for the "mem" commands to use to refer to | |
1439 | each region. */ | |
1440 | last_one = NULL; | |
1441 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1442 | { | |
1443 | this_one->number = ix; | |
1444 | ||
1445 | if (last_one && last_one->hi > this_one->lo) | |
1446 | { | |
1447 | warning (_("Overlapping regions in memory map: ignoring")); | |
1448 | VEC_free (mem_region_s, result); | |
1449 | return NULL; | |
1450 | } | |
1451 | last_one = this_one; | |
1452 | } | |
1453 | ||
1454 | return result; | |
1455 | } | |
1456 | ||
a76d924d DJ |
1457 | void |
1458 | target_flash_erase (ULONGEST address, LONGEST length) | |
1459 | { | |
1460 | struct target_ops *t; | |
1461 | ||
1462 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1463 | if (t->to_flash_erase != NULL) | |
1464 | { | |
1465 | if (targetdebug) | |
1466 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
5af949e3 | 1467 | hex_string (address), phex (length, 0)); |
8944021f DJ |
1468 | t->to_flash_erase (t, address, length); |
1469 | return; | |
a76d924d DJ |
1470 | } |
1471 | ||
1472 | tcomplain (); | |
1473 | } | |
1474 | ||
1475 | void | |
1476 | target_flash_done (void) | |
1477 | { | |
1478 | struct target_ops *t; | |
1479 | ||
1480 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1481 | if (t->to_flash_done != NULL) | |
1482 | { | |
1483 | if (targetdebug) | |
1484 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
8944021f DJ |
1485 | t->to_flash_done (t); |
1486 | return; | |
a76d924d DJ |
1487 | } |
1488 | ||
1489 | tcomplain (); | |
1490 | } | |
1491 | ||
920d2a44 AC |
1492 | static void |
1493 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1494 | struct cmd_list_element *c, const char *value) | |
1495 | { | |
1496 | fprintf_filtered (file, _("\ | |
1497 | Mode for reading from readonly sections is %s.\n"), | |
1498 | value); | |
1499 | } | |
3a11626d | 1500 | |
1e3ff5ad AC |
1501 | /* More generic transfers. */ |
1502 | ||
0088c768 | 1503 | static LONGEST |
8aa91c1e | 1504 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1505 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1506 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1507 | { |
1508 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1509 | && ops->deprecated_xfer_memory != NULL) |
1510 | /* If available, fall back to the target's | |
1511 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1512 | { |
4b8a223f | 1513 | int xfered = -1; |
0088c768 | 1514 | errno = 0; |
4b8a223f AC |
1515 | if (writebuf != NULL) |
1516 | { | |
1517 | void *buffer = xmalloc (len); | |
1518 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1519 | memcpy (buffer, writebuf, len); | |
c8e73a31 AC |
1520 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1521 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1522 | do_cleanups (cleanup); |
1523 | } | |
1524 | if (readbuf != NULL) | |
244e85c8 MS |
1525 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1526 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1527 | if (xfered > 0) |
1528 | return xfered; | |
1529 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1530 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1531 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1532 | return 0; |
1533 | else | |
1534 | return -1; | |
1535 | } | |
1536 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1537 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1538 | readbuf, writebuf, offset, len); | |
1539 | else | |
1540 | return -1; | |
1541 | } | |
1542 | ||
1543 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1544 | it does not need to handle memory specially; it just passes all | |
1545 | requests down the stack. */ | |
1546 | ||
1547 | static LONGEST | |
1548 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
1549 | const char *annex, gdb_byte *readbuf, | |
1550 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1551 | { | |
1552 | if (ops->beneath != NULL) | |
1553 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1554 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1555 | else |
1556 | return -1; | |
1557 | } | |
1558 | ||
1559 | /* Target vector read/write partial wrapper functions. | |
1560 | ||
1561 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1562 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1563 | easier. */ | |
1564 | ||
13547ab6 | 1565 | static LONGEST |
1e3ff5ad AC |
1566 | target_read_partial (struct target_ops *ops, |
1567 | enum target_object object, | |
1b0ba102 | 1568 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1569 | ULONGEST offset, LONGEST len) |
1570 | { | |
27394598 | 1571 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1572 | } |
1573 | ||
13547ab6 | 1574 | static LONGEST |
1e3ff5ad AC |
1575 | target_write_partial (struct target_ops *ops, |
1576 | enum target_object object, | |
1b0ba102 | 1577 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1578 | ULONGEST offset, LONGEST len) |
1579 | { | |
27394598 | 1580 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1581 | } |
1582 | ||
1583 | /* Wrappers to perform the full transfer. */ | |
1584 | LONGEST | |
1585 | target_read (struct target_ops *ops, | |
1586 | enum target_object object, | |
1b0ba102 | 1587 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1588 | ULONGEST offset, LONGEST len) |
1589 | { | |
1590 | LONGEST xfered = 0; | |
1591 | while (xfered < len) | |
1592 | { | |
0088c768 | 1593 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 1594 | (gdb_byte *) buf + xfered, |
0088c768 | 1595 | offset + xfered, len - xfered); |
1e3ff5ad | 1596 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
1597 | if (xfer == 0) |
1598 | return xfered; | |
1599 | if (xfer < 0) | |
0088c768 | 1600 | return -1; |
1e3ff5ad AC |
1601 | xfered += xfer; |
1602 | QUIT; | |
1603 | } | |
1604 | return len; | |
1605 | } | |
1606 | ||
d5086790 VP |
1607 | LONGEST |
1608 | target_read_until_error (struct target_ops *ops, | |
1609 | enum target_object object, | |
1610 | const char *annex, gdb_byte *buf, | |
1611 | ULONGEST offset, LONGEST len) | |
1612 | { | |
1613 | LONGEST xfered = 0; | |
1614 | while (xfered < len) | |
1615 | { | |
1616 | LONGEST xfer = target_read_partial (ops, object, annex, | |
1617 | (gdb_byte *) buf + xfered, | |
1618 | offset + xfered, len - xfered); | |
1619 | /* Call an observer, notifying them of the xfer progress? */ | |
1620 | if (xfer == 0) | |
1621 | return xfered; | |
1622 | if (xfer < 0) | |
1623 | { | |
1624 | /* We've got an error. Try to read in smaller blocks. */ | |
1625 | ULONGEST start = offset + xfered; | |
1626 | ULONGEST remaining = len - xfered; | |
1627 | ULONGEST half; | |
1628 | ||
1629 | /* If an attempt was made to read a random memory address, | |
1630 | it's likely that the very first byte is not accessible. | |
1631 | Try reading the first byte, to avoid doing log N tries | |
1632 | below. */ | |
1633 | xfer = target_read_partial (ops, object, annex, | |
1634 | (gdb_byte *) buf + xfered, start, 1); | |
1635 | if (xfer <= 0) | |
1636 | return xfered; | |
1637 | start += 1; | |
1638 | remaining -= 1; | |
1639 | half = remaining/2; | |
1640 | ||
1641 | while (half > 0) | |
1642 | { | |
1643 | xfer = target_read_partial (ops, object, annex, | |
1644 | (gdb_byte *) buf + xfered, | |
1645 | start, half); | |
1646 | if (xfer == 0) | |
1647 | return xfered; | |
1648 | if (xfer < 0) | |
1649 | { | |
1650 | remaining = half; | |
1651 | } | |
1652 | else | |
1653 | { | |
1654 | /* We have successfully read the first half. So, the | |
1655 | error must be in the second half. Adjust start and | |
1656 | remaining to point at the second half. */ | |
1657 | xfered += xfer; | |
1658 | start += xfer; | |
1659 | remaining -= xfer; | |
1660 | } | |
1661 | half = remaining/2; | |
1662 | } | |
1663 | ||
1664 | return xfered; | |
1665 | } | |
1666 | xfered += xfer; | |
1667 | QUIT; | |
1668 | } | |
1669 | return len; | |
1670 | } | |
1671 | ||
1672 | ||
cf7a04e8 DJ |
1673 | /* An alternative to target_write with progress callbacks. */ |
1674 | ||
1e3ff5ad | 1675 | LONGEST |
cf7a04e8 DJ |
1676 | target_write_with_progress (struct target_ops *ops, |
1677 | enum target_object object, | |
1678 | const char *annex, const gdb_byte *buf, | |
1679 | ULONGEST offset, LONGEST len, | |
1680 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
1681 | { |
1682 | LONGEST xfered = 0; | |
a76d924d DJ |
1683 | |
1684 | /* Give the progress callback a chance to set up. */ | |
1685 | if (progress) | |
1686 | (*progress) (0, baton); | |
1687 | ||
1e3ff5ad AC |
1688 | while (xfered < len) |
1689 | { | |
1690 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 1691 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 1692 | offset + xfered, len - xfered); |
cf7a04e8 | 1693 | |
13547ab6 DJ |
1694 | if (xfer == 0) |
1695 | return xfered; | |
1696 | if (xfer < 0) | |
0088c768 | 1697 | return -1; |
cf7a04e8 DJ |
1698 | |
1699 | if (progress) | |
1700 | (*progress) (xfer, baton); | |
1701 | ||
1e3ff5ad AC |
1702 | xfered += xfer; |
1703 | QUIT; | |
1704 | } | |
1705 | return len; | |
1706 | } | |
1707 | ||
cf7a04e8 DJ |
1708 | LONGEST |
1709 | target_write (struct target_ops *ops, | |
1710 | enum target_object object, | |
1711 | const char *annex, const gdb_byte *buf, | |
1712 | ULONGEST offset, LONGEST len) | |
1713 | { | |
1714 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1715 | NULL, NULL); | |
1716 | } | |
1717 | ||
159f81f3 DJ |
1718 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1719 | the size of the transferred data. PADDING additional bytes are | |
1720 | available in *BUF_P. This is a helper function for | |
1721 | target_read_alloc; see the declaration of that function for more | |
1722 | information. */ | |
13547ab6 | 1723 | |
159f81f3 DJ |
1724 | static LONGEST |
1725 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
1726 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
1727 | { |
1728 | size_t buf_alloc, buf_pos; | |
1729 | gdb_byte *buf; | |
1730 | LONGEST n; | |
1731 | ||
1732 | /* This function does not have a length parameter; it reads the | |
1733 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1734 | from one target and partly from another (in a different stratum, | |
1735 | e.g. a core file and an executable). Both reasons make it | |
1736 | unsuitable for reading memory. */ | |
1737 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1738 | ||
1739 | /* Start by reading up to 4K at a time. The target will throttle | |
1740 | this number down if necessary. */ | |
1741 | buf_alloc = 4096; | |
1742 | buf = xmalloc (buf_alloc); | |
1743 | buf_pos = 0; | |
1744 | while (1) | |
1745 | { | |
1746 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 1747 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
1748 | if (n < 0) |
1749 | { | |
1750 | /* An error occurred. */ | |
1751 | xfree (buf); | |
1752 | return -1; | |
1753 | } | |
1754 | else if (n == 0) | |
1755 | { | |
1756 | /* Read all there was. */ | |
1757 | if (buf_pos == 0) | |
1758 | xfree (buf); | |
1759 | else | |
1760 | *buf_p = buf; | |
1761 | return buf_pos; | |
1762 | } | |
1763 | ||
1764 | buf_pos += n; | |
1765 | ||
1766 | /* If the buffer is filling up, expand it. */ | |
1767 | if (buf_alloc < buf_pos * 2) | |
1768 | { | |
1769 | buf_alloc *= 2; | |
1770 | buf = xrealloc (buf, buf_alloc); | |
1771 | } | |
1772 | ||
1773 | QUIT; | |
1774 | } | |
1775 | } | |
1776 | ||
159f81f3 DJ |
1777 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1778 | the size of the transferred data. See the declaration in "target.h" | |
1779 | function for more information about the return value. */ | |
1780 | ||
1781 | LONGEST | |
1782 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
1783 | const char *annex, gdb_byte **buf_p) | |
1784 | { | |
1785 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
1786 | } | |
1787 | ||
1788 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
1789 | returned as a string, allocated using xmalloc. If an error occurs | |
1790 | or the transfer is unsupported, NULL is returned. Empty objects | |
1791 | are returned as allocated but empty strings. A warning is issued | |
1792 | if the result contains any embedded NUL bytes. */ | |
1793 | ||
1794 | char * | |
1795 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
1796 | const char *annex) | |
1797 | { | |
1798 | gdb_byte *buffer; | |
1799 | LONGEST transferred; | |
1800 | ||
1801 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); | |
1802 | ||
1803 | if (transferred < 0) | |
1804 | return NULL; | |
1805 | ||
1806 | if (transferred == 0) | |
1807 | return xstrdup (""); | |
1808 | ||
1809 | buffer[transferred] = 0; | |
1810 | if (strlen (buffer) < transferred) | |
1811 | warning (_("target object %d, annex %s, " | |
1812 | "contained unexpected null characters"), | |
1813 | (int) object, annex ? annex : "(none)"); | |
1814 | ||
1815 | return (char *) buffer; | |
1816 | } | |
1817 | ||
b6591e8b AC |
1818 | /* Memory transfer methods. */ |
1819 | ||
1820 | void | |
1b0ba102 | 1821 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1822 | LONGEST len) |
1823 | { | |
07b82ea5 PA |
1824 | /* This method is used to read from an alternate, non-current |
1825 | target. This read must bypass the overlay support (as symbols | |
1826 | don't match this target), and GDB's internal cache (wrong cache | |
1827 | for this target). */ | |
1828 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b AC |
1829 | != len) |
1830 | memory_error (EIO, addr); | |
1831 | } | |
1832 | ||
1833 | ULONGEST | |
1834 | get_target_memory_unsigned (struct target_ops *ops, | |
e17a4113 | 1835 | CORE_ADDR addr, int len, enum bfd_endian byte_order) |
b6591e8b | 1836 | { |
f6519ebc | 1837 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1838 | |
1839 | gdb_assert (len <= sizeof (buf)); | |
1840 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 1841 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
1842 | } |
1843 | ||
c906108c | 1844 | static void |
fba45db2 | 1845 | target_info (char *args, int from_tty) |
c906108c SS |
1846 | { |
1847 | struct target_ops *t; | |
c906108c | 1848 | int has_all_mem = 0; |
c5aa993b | 1849 | |
c906108c | 1850 | if (symfile_objfile != NULL) |
a3f17187 | 1851 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 1852 | |
258b763a | 1853 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1854 | { |
c35b1492 | 1855 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
1856 | continue; |
1857 | ||
c5aa993b | 1858 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1859 | continue; |
1860 | if (has_all_mem) | |
a3f17187 | 1861 | printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n")); |
c5aa993b JM |
1862 | printf_unfiltered ("%s:\n", t->to_longname); |
1863 | (t->to_files_info) (t); | |
c35b1492 | 1864 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
1865 | } |
1866 | } | |
1867 | ||
fd79ecee DJ |
1868 | /* This function is called before any new inferior is created, e.g. |
1869 | by running a program, attaching, or connecting to a target. | |
1870 | It cleans up any state from previous invocations which might | |
1871 | change between runs. This is a subset of what target_preopen | |
1872 | resets (things which might change between targets). */ | |
1873 | ||
1874 | void | |
1875 | target_pre_inferior (int from_tty) | |
1876 | { | |
b9db4ced UW |
1877 | /* Clear out solib state. Otherwise the solib state of the previous |
1878 | inferior might have survived and is entirely wrong for the new | |
1879 | target. This has been observed on GNU/Linux using glibc 2.3. How | |
1880 | to reproduce: | |
1881 | ||
1882 | bash$ ./foo& | |
1883 | [1] 4711 | |
1884 | bash$ ./foo& | |
1885 | [1] 4712 | |
1886 | bash$ gdb ./foo | |
1887 | [...] | |
1888 | (gdb) attach 4711 | |
1889 | (gdb) detach | |
1890 | (gdb) attach 4712 | |
1891 | Cannot access memory at address 0xdeadbeef | |
1892 | */ | |
b9db4ced | 1893 | |
50c71eaf PA |
1894 | /* In some OSs, the shared library list is the same/global/shared |
1895 | across inferiors. If code is shared between processes, so are | |
1896 | memory regions and features. */ | |
1897 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
1898 | { | |
1899 | no_shared_libraries (NULL, from_tty); | |
1900 | ||
1901 | invalidate_target_mem_regions (); | |
424163ea | 1902 | |
50c71eaf PA |
1903 | target_clear_description (); |
1904 | } | |
fd79ecee DJ |
1905 | } |
1906 | ||
b8fa0bfa PA |
1907 | /* Callback for iterate_over_inferiors. Gets rid of the given |
1908 | inferior. */ | |
1909 | ||
1910 | static int | |
1911 | dispose_inferior (struct inferior *inf, void *args) | |
1912 | { | |
1913 | struct thread_info *thread; | |
1914 | ||
1915 | thread = any_thread_of_process (inf->pid); | |
1916 | if (thread) | |
1917 | { | |
1918 | switch_to_thread (thread->ptid); | |
1919 | ||
1920 | /* Core inferiors actually should be detached, not killed. */ | |
1921 | if (target_has_execution) | |
1922 | target_kill (); | |
1923 | else | |
1924 | target_detach (NULL, 0); | |
1925 | } | |
1926 | ||
1927 | return 0; | |
1928 | } | |
1929 | ||
c906108c SS |
1930 | /* This is to be called by the open routine before it does |
1931 | anything. */ | |
1932 | ||
1933 | void | |
fba45db2 | 1934 | target_preopen (int from_tty) |
c906108c | 1935 | { |
c5aa993b | 1936 | dont_repeat (); |
c906108c | 1937 | |
b8fa0bfa | 1938 | if (have_inferiors ()) |
c5aa993b | 1939 | { |
adf40b2e | 1940 | if (!from_tty |
b8fa0bfa PA |
1941 | || !have_live_inferiors () |
1942 | || query (_("A program is being debugged already. Kill it? "))) | |
1943 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 1944 | else |
8a3fe4f8 | 1945 | error (_("Program not killed.")); |
c906108c SS |
1946 | } |
1947 | ||
1948 | /* Calling target_kill may remove the target from the stack. But if | |
1949 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
1950 | /* Leave the exec target, though. The user may be switching from a |
1951 | live process to a core of the same program. */ | |
1952 | pop_all_targets_above (file_stratum, 0); | |
fd79ecee DJ |
1953 | |
1954 | target_pre_inferior (from_tty); | |
c906108c SS |
1955 | } |
1956 | ||
1957 | /* Detach a target after doing deferred register stores. */ | |
1958 | ||
1959 | void | |
fba45db2 | 1960 | target_detach (char *args, int from_tty) |
c906108c | 1961 | { |
136d6dae VP |
1962 | struct target_ops* t; |
1963 | ||
2567c7d9 | 1964 | if (gdbarch_has_global_breakpoints (target_gdbarch)) |
50c71eaf PA |
1965 | /* Don't remove global breakpoints here. They're removed on |
1966 | disconnection from the target. */ | |
1967 | ; | |
1968 | else | |
1969 | /* If we're in breakpoints-always-inserted mode, have to remove | |
1970 | them before detaching. */ | |
1971 | remove_breakpoints (); | |
74960c60 | 1972 | |
136d6dae VP |
1973 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
1974 | { | |
1975 | if (t->to_detach != NULL) | |
1976 | { | |
1977 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
1978 | if (targetdebug) |
1979 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
1980 | args, from_tty); | |
136d6dae VP |
1981 | return; |
1982 | } | |
1983 | } | |
1984 | ||
1985 | internal_error (__FILE__, __LINE__, "could not find a target to detach"); | |
c906108c SS |
1986 | } |
1987 | ||
6ad8ae5c DJ |
1988 | void |
1989 | target_disconnect (char *args, int from_tty) | |
1990 | { | |
597320e7 DJ |
1991 | struct target_ops *t; |
1992 | ||
50c71eaf PA |
1993 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
1994 | are global across processes, we have to remove them before | |
1995 | disconnecting. */ | |
74960c60 VP |
1996 | remove_breakpoints (); |
1997 | ||
597320e7 DJ |
1998 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
1999 | if (t->to_disconnect != NULL) | |
2000 | { | |
2001 | if (targetdebug) | |
2002 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2003 | args, from_tty); | |
2004 | t->to_disconnect (t, args, from_tty); | |
2005 | return; | |
2006 | } | |
2007 | ||
2008 | tcomplain (); | |
6ad8ae5c DJ |
2009 | } |
2010 | ||
117de6a9 | 2011 | ptid_t |
47608cb1 | 2012 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2013 | { |
2014 | struct target_ops *t; | |
2015 | ||
2016 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2017 | { | |
2018 | if (t->to_wait != NULL) | |
2019 | { | |
47608cb1 | 2020 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
2021 | |
2022 | if (targetdebug) | |
2023 | { | |
2024 | char *status_string; | |
2025 | ||
2026 | status_string = target_waitstatus_to_string (status); | |
2027 | fprintf_unfiltered (gdb_stdlog, | |
2028 | "target_wait (%d, status) = %d, %s\n", | |
2029 | PIDGET (ptid), PIDGET (retval), | |
2030 | status_string); | |
2031 | xfree (status_string); | |
2032 | } | |
2033 | ||
2034 | return retval; | |
2035 | } | |
2036 | } | |
2037 | ||
2038 | noprocess (); | |
2039 | } | |
2040 | ||
2041 | char * | |
2042 | target_pid_to_str (ptid_t ptid) | |
2043 | { | |
2044 | struct target_ops *t; | |
2045 | ||
2046 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2047 | { | |
2048 | if (t->to_pid_to_str != NULL) | |
2049 | return (*t->to_pid_to_str) (t, ptid); | |
2050 | } | |
2051 | ||
2052 | return normal_pid_to_str (ptid); | |
2053 | } | |
2054 | ||
e1ac3328 VP |
2055 | void |
2056 | target_resume (ptid_t ptid, int step, enum target_signal signal) | |
2057 | { | |
28439f5e PA |
2058 | struct target_ops *t; |
2059 | ||
e1ac3328 | 2060 | dcache_invalidate (target_dcache); |
28439f5e PA |
2061 | |
2062 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2063 | { | |
2064 | if (t->to_resume != NULL) | |
2065 | { | |
2066 | t->to_resume (t, ptid, step, signal); | |
2067 | if (targetdebug) | |
2068 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2069 | PIDGET (ptid), | |
2070 | step ? "step" : "continue", | |
2071 | target_signal_to_name (signal)); | |
2072 | ||
2073 | set_executing (ptid, 1); | |
2074 | set_running (ptid, 1); | |
edb3359d | 2075 | clear_inline_frame_state (ptid); |
28439f5e PA |
2076 | return; |
2077 | } | |
2078 | } | |
2079 | ||
2080 | noprocess (); | |
e1ac3328 | 2081 | } |
ee057212 DJ |
2082 | /* Look through the list of possible targets for a target that can |
2083 | follow forks. */ | |
2084 | ||
2085 | int | |
2086 | target_follow_fork (int follow_child) | |
2087 | { | |
2088 | struct target_ops *t; | |
2089 | ||
2090 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2091 | { | |
2092 | if (t->to_follow_fork != NULL) | |
2093 | { | |
2094 | int retval = t->to_follow_fork (t, follow_child); | |
2095 | if (targetdebug) | |
2096 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
2097 | follow_child, retval); | |
2098 | return retval; | |
2099 | } | |
2100 | } | |
2101 | ||
2102 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2103 | internal_error (__FILE__, __LINE__, | |
2104 | "could not find a target to follow fork"); | |
2105 | } | |
2106 | ||
136d6dae VP |
2107 | void |
2108 | target_mourn_inferior (void) | |
2109 | { | |
2110 | struct target_ops *t; | |
2111 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2112 | { | |
2113 | if (t->to_mourn_inferior != NULL) | |
2114 | { | |
2115 | t->to_mourn_inferior (t); | |
947b8855 PA |
2116 | if (targetdebug) |
2117 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2118 | |
2119 | /* We no longer need to keep handles on any of the object files. | |
2120 | Make sure to release them to avoid unnecessarily locking any | |
2121 | of them while we're not actually debugging. */ | |
2122 | bfd_cache_close_all (); | |
2123 | ||
136d6dae VP |
2124 | return; |
2125 | } | |
2126 | } | |
2127 | ||
2128 | internal_error (__FILE__, __LINE__, | |
2129 | "could not find a target to follow mourn inferiour"); | |
2130 | } | |
2131 | ||
424163ea DJ |
2132 | /* Look for a target which can describe architectural features, starting |
2133 | from TARGET. If we find one, return its description. */ | |
2134 | ||
2135 | const struct target_desc * | |
2136 | target_read_description (struct target_ops *target) | |
2137 | { | |
2138 | struct target_ops *t; | |
2139 | ||
2140 | for (t = target; t != NULL; t = t->beneath) | |
2141 | if (t->to_read_description != NULL) | |
2142 | { | |
2143 | const struct target_desc *tdesc; | |
2144 | ||
2145 | tdesc = t->to_read_description (t); | |
2146 | if (tdesc) | |
2147 | return tdesc; | |
2148 | } | |
2149 | ||
2150 | return NULL; | |
2151 | } | |
2152 | ||
08388c79 DE |
2153 | /* The default implementation of to_search_memory. |
2154 | This implements a basic search of memory, reading target memory and | |
2155 | performing the search here (as opposed to performing the search in on the | |
2156 | target side with, for example, gdbserver). */ | |
2157 | ||
2158 | int | |
2159 | simple_search_memory (struct target_ops *ops, | |
2160 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2161 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2162 | CORE_ADDR *found_addrp) | |
2163 | { | |
2164 | /* NOTE: also defined in find.c testcase. */ | |
2165 | #define SEARCH_CHUNK_SIZE 16000 | |
2166 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2167 | /* Buffer to hold memory contents for searching. */ | |
2168 | gdb_byte *search_buf; | |
2169 | unsigned search_buf_size; | |
2170 | struct cleanup *old_cleanups; | |
2171 | ||
2172 | search_buf_size = chunk_size + pattern_len - 1; | |
2173 | ||
2174 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2175 | if (search_space_len < search_buf_size) | |
2176 | search_buf_size = search_space_len; | |
2177 | ||
2178 | search_buf = malloc (search_buf_size); | |
2179 | if (search_buf == NULL) | |
5e1471f5 | 2180 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2181 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2182 | ||
2183 | /* Prime the search buffer. */ | |
2184 | ||
2185 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2186 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2187 | { | |
5e1471f5 | 2188 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
2189 | hex_string (start_addr)); |
2190 | do_cleanups (old_cleanups); | |
2191 | return -1; | |
2192 | } | |
2193 | ||
2194 | /* Perform the search. | |
2195 | ||
2196 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2197 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2198 | read in another N bytes. */ | |
2199 | ||
2200 | while (search_space_len >= pattern_len) | |
2201 | { | |
2202 | gdb_byte *found_ptr; | |
2203 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2204 | ||
2205 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2206 | pattern, pattern_len); | |
2207 | ||
2208 | if (found_ptr != NULL) | |
2209 | { | |
2210 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
2211 | *found_addrp = found_addr; | |
2212 | do_cleanups (old_cleanups); | |
2213 | return 1; | |
2214 | } | |
2215 | ||
2216 | /* Not found in this chunk, skip to next chunk. */ | |
2217 | ||
2218 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2219 | if (search_space_len >= chunk_size) | |
2220 | search_space_len -= chunk_size; | |
2221 | else | |
2222 | search_space_len = 0; | |
2223 | ||
2224 | if (search_space_len >= pattern_len) | |
2225 | { | |
2226 | unsigned keep_len = search_buf_size - chunk_size; | |
2227 | CORE_ADDR read_addr = start_addr + keep_len; | |
2228 | int nr_to_read; | |
2229 | ||
2230 | /* Copy the trailing part of the previous iteration to the front | |
2231 | of the buffer for the next iteration. */ | |
2232 | gdb_assert (keep_len == pattern_len - 1); | |
2233 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2234 | ||
2235 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2236 | ||
2237 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2238 | search_buf + keep_len, read_addr, | |
2239 | nr_to_read) != nr_to_read) | |
2240 | { | |
5e1471f5 | 2241 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
2242 | hex_string (read_addr)); |
2243 | do_cleanups (old_cleanups); | |
2244 | return -1; | |
2245 | } | |
2246 | ||
2247 | start_addr += chunk_size; | |
2248 | } | |
2249 | } | |
2250 | ||
2251 | /* Not found. */ | |
2252 | ||
2253 | do_cleanups (old_cleanups); | |
2254 | return 0; | |
2255 | } | |
2256 | ||
2257 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2258 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2259 | ||
2260 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2261 | requiring halting of the search (e.g. memory read error). | |
2262 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2263 | ||
2264 | int | |
2265 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2266 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2267 | CORE_ADDR *found_addrp) | |
2268 | { | |
2269 | struct target_ops *t; | |
2270 | int found; | |
2271 | ||
2272 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2273 | so we have to scan the target stack and handle targetdebug | |
2274 | ourselves. */ | |
2275 | ||
2276 | if (targetdebug) | |
2277 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2278 | hex_string (start_addr)); | |
2279 | ||
2280 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2281 | if (t->to_search_memory != NULL) | |
2282 | break; | |
2283 | ||
2284 | if (t != NULL) | |
2285 | { | |
2286 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2287 | pattern, pattern_len, found_addrp); | |
2288 | } | |
2289 | else | |
2290 | { | |
2291 | /* If a special version of to_search_memory isn't available, use the | |
2292 | simple version. */ | |
c35b1492 | 2293 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2294 | start_addr, search_space_len, |
2295 | pattern, pattern_len, found_addrp); | |
2296 | } | |
2297 | ||
2298 | if (targetdebug) | |
2299 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2300 | ||
2301 | return found; | |
2302 | } | |
2303 | ||
8edfe269 DJ |
2304 | /* Look through the currently pushed targets. If none of them will |
2305 | be able to restart the currently running process, issue an error | |
2306 | message. */ | |
2307 | ||
2308 | void | |
2309 | target_require_runnable (void) | |
2310 | { | |
2311 | struct target_ops *t; | |
2312 | ||
2313 | for (t = target_stack; t != NULL; t = t->beneath) | |
2314 | { | |
2315 | /* If this target knows how to create a new program, then | |
2316 | assume we will still be able to after killing the current | |
2317 | one. Either killing and mourning will not pop T, or else | |
2318 | find_default_run_target will find it again. */ | |
2319 | if (t->to_create_inferior != NULL) | |
2320 | return; | |
2321 | ||
2322 | /* Do not worry about thread_stratum targets that can not | |
2323 | create inferiors. Assume they will be pushed again if | |
2324 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2325 | if (t->to_stratum == thread_stratum |
2326 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2327 | continue; |
2328 | ||
2329 | error (_("\ | |
2330 | The \"%s\" target does not support \"run\". Try \"help target\" or \"continue\"."), | |
2331 | t->to_shortname); | |
2332 | } | |
2333 | ||
2334 | /* This function is only called if the target is running. In that | |
2335 | case there should have been a process_stratum target and it | |
2336 | should either know how to create inferiors, or not... */ | |
2337 | internal_error (__FILE__, __LINE__, "No targets found"); | |
2338 | } | |
2339 | ||
c906108c SS |
2340 | /* Look through the list of possible targets for a target that can |
2341 | execute a run or attach command without any other data. This is | |
2342 | used to locate the default process stratum. | |
2343 | ||
5f667f2d PA |
2344 | If DO_MESG is not NULL, the result is always valid (error() is |
2345 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2346 | |
2347 | static struct target_ops * | |
fba45db2 | 2348 | find_default_run_target (char *do_mesg) |
c906108c SS |
2349 | { |
2350 | struct target_ops **t; | |
2351 | struct target_ops *runable = NULL; | |
2352 | int count; | |
2353 | ||
2354 | count = 0; | |
2355 | ||
2356 | for (t = target_structs; t < target_structs + target_struct_size; | |
2357 | ++t) | |
2358 | { | |
c5aa993b | 2359 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2360 | { |
2361 | runable = *t; | |
2362 | ++count; | |
2363 | } | |
2364 | } | |
2365 | ||
2366 | if (count != 1) | |
5f667f2d PA |
2367 | { |
2368 | if (do_mesg) | |
2369 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2370 | else | |
2371 | return NULL; | |
2372 | } | |
c906108c SS |
2373 | |
2374 | return runable; | |
2375 | } | |
2376 | ||
2377 | void | |
136d6dae | 2378 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2379 | { |
2380 | struct target_ops *t; | |
2381 | ||
c5aa993b | 2382 | t = find_default_run_target ("attach"); |
136d6dae | 2383 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2384 | return; |
2385 | } | |
2386 | ||
c906108c | 2387 | void |
136d6dae VP |
2388 | find_default_create_inferior (struct target_ops *ops, |
2389 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2390 | int from_tty) |
c906108c SS |
2391 | { |
2392 | struct target_ops *t; | |
2393 | ||
c5aa993b | 2394 | t = find_default_run_target ("run"); |
136d6dae | 2395 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
2396 | return; |
2397 | } | |
2398 | ||
2c0b251b | 2399 | static int |
b84876c2 PA |
2400 | find_default_can_async_p (void) |
2401 | { | |
2402 | struct target_ops *t; | |
2403 | ||
5f667f2d PA |
2404 | /* This may be called before the target is pushed on the stack; |
2405 | look for the default process stratum. If there's none, gdb isn't | |
2406 | configured with a native debugger, and target remote isn't | |
2407 | connected yet. */ | |
2408 | t = find_default_run_target (NULL); | |
2409 | if (t && t->to_can_async_p) | |
b84876c2 PA |
2410 | return (t->to_can_async_p) (); |
2411 | return 0; | |
2412 | } | |
2413 | ||
2c0b251b | 2414 | static int |
b84876c2 PA |
2415 | find_default_is_async_p (void) |
2416 | { | |
2417 | struct target_ops *t; | |
2418 | ||
5f667f2d PA |
2419 | /* This may be called before the target is pushed on the stack; |
2420 | look for the default process stratum. If there's none, gdb isn't | |
2421 | configured with a native debugger, and target remote isn't | |
2422 | connected yet. */ | |
2423 | t = find_default_run_target (NULL); | |
2424 | if (t && t->to_is_async_p) | |
b84876c2 PA |
2425 | return (t->to_is_async_p) (); |
2426 | return 0; | |
2427 | } | |
2428 | ||
2c0b251b | 2429 | static int |
9908b566 VP |
2430 | find_default_supports_non_stop (void) |
2431 | { | |
2432 | struct target_ops *t; | |
2433 | ||
2434 | t = find_default_run_target (NULL); | |
2435 | if (t && t->to_supports_non_stop) | |
2436 | return (t->to_supports_non_stop) (); | |
2437 | return 0; | |
2438 | } | |
2439 | ||
2440 | int | |
2c0b251b | 2441 | target_supports_non_stop (void) |
9908b566 VP |
2442 | { |
2443 | struct target_ops *t; | |
2444 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
2445 | if (t->to_supports_non_stop) | |
2446 | return t->to_supports_non_stop (); | |
2447 | ||
2448 | return 0; | |
2449 | } | |
2450 | ||
2451 | ||
07e059b5 VP |
2452 | char * |
2453 | target_get_osdata (const char *type) | |
2454 | { | |
2455 | char *document; | |
2456 | struct target_ops *t; | |
2457 | ||
739ef7fb PA |
2458 | /* If we're already connected to something that can get us OS |
2459 | related data, use it. Otherwise, try using the native | |
2460 | target. */ | |
2461 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 2462 | t = current_target.beneath; |
739ef7fb PA |
2463 | else |
2464 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
2465 | |
2466 | if (!t) | |
2467 | return NULL; | |
2468 | ||
6d097e65 | 2469 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
2470 | } |
2471 | ||
e0d24f8d WZ |
2472 | static int |
2473 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2474 | { | |
ffe5a37e | 2475 | return (len <= gdbarch_ptr_bit (target_gdbarch) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
2476 | } |
2477 | ||
5009afc5 AS |
2478 | static int |
2479 | default_watchpoint_addr_within_range (struct target_ops *target, | |
2480 | CORE_ADDR addr, | |
2481 | CORE_ADDR start, int length) | |
2482 | { | |
2483 | return addr >= start && addr < start + length; | |
2484 | } | |
2485 | ||
c2250ad1 UW |
2486 | static struct gdbarch * |
2487 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
2488 | { | |
2489 | return target_gdbarch; | |
2490 | } | |
2491 | ||
c906108c | 2492 | static int |
fba45db2 | 2493 | return_zero (void) |
c906108c SS |
2494 | { |
2495 | return 0; | |
2496 | } | |
2497 | ||
2498 | static int | |
fba45db2 | 2499 | return_one (void) |
c906108c SS |
2500 | { |
2501 | return 1; | |
2502 | } | |
2503 | ||
ccaa32c7 GS |
2504 | static int |
2505 | return_minus_one (void) | |
2506 | { | |
2507 | return -1; | |
2508 | } | |
2509 | ||
7a292a7a SS |
2510 | /* Find a single runnable target in the stack and return it. If for |
2511 | some reason there is more than one, return NULL. */ | |
2512 | ||
2513 | struct target_ops * | |
fba45db2 | 2514 | find_run_target (void) |
7a292a7a SS |
2515 | { |
2516 | struct target_ops **t; | |
2517 | struct target_ops *runable = NULL; | |
2518 | int count; | |
c5aa993b | 2519 | |
7a292a7a | 2520 | count = 0; |
c5aa993b | 2521 | |
7a292a7a SS |
2522 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
2523 | { | |
c5aa993b | 2524 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
2525 | { |
2526 | runable = *t; | |
2527 | ++count; | |
2528 | } | |
2529 | } | |
c5aa993b | 2530 | |
7a292a7a SS |
2531 | return (count == 1 ? runable : NULL); |
2532 | } | |
2533 | ||
ed9a39eb JM |
2534 | /* Find a single core_stratum target in the list of targets and return it. |
2535 | If for some reason there is more than one, return NULL. */ | |
2536 | ||
c906108c | 2537 | struct target_ops * |
fba45db2 | 2538 | find_core_target (void) |
c906108c SS |
2539 | { |
2540 | struct target_ops **t; | |
2541 | struct target_ops *runable = NULL; | |
2542 | int count; | |
c5aa993b | 2543 | |
c906108c | 2544 | count = 0; |
c5aa993b | 2545 | |
c906108c SS |
2546 | for (t = target_structs; t < target_structs + target_struct_size; |
2547 | ++t) | |
2548 | { | |
2549 | if ((*t)->to_stratum == core_stratum) | |
2550 | { | |
2551 | runable = *t; | |
2552 | ++count; | |
2553 | } | |
2554 | } | |
c5aa993b JM |
2555 | |
2556 | return (count == 1 ? runable : NULL); | |
c906108c | 2557 | } |
ed9a39eb JM |
2558 | |
2559 | /* | |
2560 | * Find the next target down the stack from the specified target. | |
2561 | */ | |
2562 | ||
2563 | struct target_ops * | |
fba45db2 | 2564 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 2565 | { |
258b763a | 2566 | return t->beneath; |
ed9a39eb JM |
2567 | } |
2568 | ||
c906108c SS |
2569 | \f |
2570 | /* The inferior process has died. Long live the inferior! */ | |
2571 | ||
2572 | void | |
fba45db2 | 2573 | generic_mourn_inferior (void) |
c906108c | 2574 | { |
7f9f62ba | 2575 | ptid_t ptid; |
c906108c | 2576 | |
7f9f62ba | 2577 | ptid = inferior_ptid; |
39f77062 | 2578 | inferior_ptid = null_ptid; |
7f9f62ba PA |
2579 | |
2580 | if (!ptid_equal (ptid, null_ptid)) | |
2581 | { | |
2582 | int pid = ptid_get_pid (ptid); | |
2583 | delete_inferior (pid); | |
2584 | } | |
2585 | ||
c906108c SS |
2586 | breakpoint_init_inferior (inf_exited); |
2587 | registers_changed (); | |
2588 | ||
c906108c SS |
2589 | reopen_exec_file (); |
2590 | reinit_frame_cache (); | |
2591 | ||
9a4105ab AC |
2592 | if (deprecated_detach_hook) |
2593 | deprecated_detach_hook (); | |
c906108c SS |
2594 | } |
2595 | \f | |
8807d78b | 2596 | /* Helper function for child_wait and the derivatives of child_wait. |
c906108c SS |
2597 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our |
2598 | translation of that in OURSTATUS. */ | |
2599 | void | |
fba45db2 | 2600 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c | 2601 | { |
c906108c SS |
2602 | if (WIFEXITED (hoststatus)) |
2603 | { | |
2604 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
2605 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
2606 | } | |
2607 | else if (!WIFSTOPPED (hoststatus)) | |
2608 | { | |
2609 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
2610 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
2611 | } | |
2612 | else | |
2613 | { | |
2614 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
2615 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
2616 | } | |
2617 | } | |
2618 | \f | |
fd0a2a6f MK |
2619 | /* Convert a normal process ID to a string. Returns the string in a |
2620 | static buffer. */ | |
c906108c SS |
2621 | |
2622 | char * | |
39f77062 | 2623 | normal_pid_to_str (ptid_t ptid) |
c906108c | 2624 | { |
fd0a2a6f | 2625 | static char buf[32]; |
c906108c | 2626 | |
5fff8fc0 | 2627 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
2628 | return buf; |
2629 | } | |
2630 | ||
2c0b251b | 2631 | static char * |
117de6a9 PA |
2632 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
2633 | { | |
2634 | return normal_pid_to_str (ptid); | |
2635 | } | |
2636 | ||
be4d1333 | 2637 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
2638 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
2639 | { | |
8a3fe4f8 | 2640 | error (_("No target.")); |
be4d1333 MS |
2641 | return 0; |
2642 | } | |
2643 | ||
2644 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
2645 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
2646 | { | |
8a3fe4f8 | 2647 | error (_("No target.")); |
be4d1333 MS |
2648 | return NULL; |
2649 | } | |
2650 | ||
c906108c SS |
2651 | /* Set up the handful of non-empty slots needed by the dummy target |
2652 | vector. */ | |
2653 | ||
2654 | static void | |
fba45db2 | 2655 | init_dummy_target (void) |
c906108c SS |
2656 | { |
2657 | dummy_target.to_shortname = "None"; | |
2658 | dummy_target.to_longname = "None"; | |
2659 | dummy_target.to_doc = ""; | |
2660 | dummy_target.to_attach = find_default_attach; | |
136d6dae VP |
2661 | dummy_target.to_detach = |
2662 | (void (*)(struct target_ops *, char *, int))target_ignore; | |
c906108c | 2663 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
2664 | dummy_target.to_can_async_p = find_default_can_async_p; |
2665 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 2666 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
117de6a9 | 2667 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 2668 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
2669 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
2670 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 2671 | dummy_target.to_xfer_partial = default_xfer_partial; |
c35b1492 PA |
2672 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
2673 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
2674 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
2675 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
2676 | dummy_target.to_has_execution = (int (*) (struct target_ops *)) return_zero; | |
c906108c SS |
2677 | dummy_target.to_magic = OPS_MAGIC; |
2678 | } | |
c906108c | 2679 | \f |
c906108c | 2680 | static void |
fba45db2 | 2681 | debug_to_open (char *args, int from_tty) |
c906108c SS |
2682 | { |
2683 | debug_target.to_open (args, from_tty); | |
2684 | ||
96baa820 | 2685 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
2686 | } |
2687 | ||
f1c07ab0 AC |
2688 | void |
2689 | target_close (struct target_ops *targ, int quitting) | |
2690 | { | |
2691 | if (targ->to_xclose != NULL) | |
2692 | targ->to_xclose (targ, quitting); | |
2693 | else if (targ->to_close != NULL) | |
2694 | targ->to_close (quitting); | |
947b8855 PA |
2695 | |
2696 | if (targetdebug) | |
2697 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); | |
f1c07ab0 AC |
2698 | } |
2699 | ||
136d6dae VP |
2700 | void |
2701 | target_attach (char *args, int from_tty) | |
2702 | { | |
2703 | struct target_ops *t; | |
2704 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2705 | { | |
2706 | if (t->to_attach != NULL) | |
2707 | { | |
2708 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
2709 | if (targetdebug) |
2710 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
2711 | args, from_tty); | |
136d6dae VP |
2712 | return; |
2713 | } | |
2714 | } | |
2715 | ||
2716 | internal_error (__FILE__, __LINE__, | |
2717 | "could not find a target to attach"); | |
2718 | } | |
2719 | ||
28439f5e PA |
2720 | int |
2721 | target_thread_alive (ptid_t ptid) | |
c906108c | 2722 | { |
28439f5e PA |
2723 | struct target_ops *t; |
2724 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2725 | { | |
2726 | if (t->to_thread_alive != NULL) | |
2727 | { | |
2728 | int retval; | |
c906108c | 2729 | |
28439f5e PA |
2730 | retval = t->to_thread_alive (t, ptid); |
2731 | if (targetdebug) | |
2732 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
2733 | PIDGET (ptid), retval); | |
2734 | ||
2735 | return retval; | |
2736 | } | |
2737 | } | |
2738 | ||
2739 | return 0; | |
2740 | } | |
2741 | ||
2742 | void | |
2743 | target_find_new_threads (void) | |
2744 | { | |
2745 | struct target_ops *t; | |
2746 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2747 | { | |
2748 | if (t->to_find_new_threads != NULL) | |
2749 | { | |
2750 | t->to_find_new_threads (t); | |
2751 | if (targetdebug) | |
2752 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
2753 | ||
2754 | return; | |
2755 | } | |
2756 | } | |
c906108c SS |
2757 | } |
2758 | ||
c906108c | 2759 | static void |
28439f5e | 2760 | debug_to_post_attach (int pid) |
c906108c | 2761 | { |
28439f5e | 2762 | debug_target.to_post_attach (pid); |
c906108c | 2763 | |
28439f5e | 2764 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
2765 | } |
2766 | ||
f00150c9 DE |
2767 | /* Return a pretty printed form of target_waitstatus. |
2768 | Space for the result is malloc'd, caller must free. */ | |
c906108c | 2769 | |
f00150c9 DE |
2770 | char * |
2771 | target_waitstatus_to_string (const struct target_waitstatus *ws) | |
2772 | { | |
2773 | const char *kind_str = "status->kind = "; | |
c906108c | 2774 | |
f00150c9 | 2775 | switch (ws->kind) |
c906108c SS |
2776 | { |
2777 | case TARGET_WAITKIND_EXITED: | |
f00150c9 DE |
2778 | return xstrprintf ("%sexited, status = %d", |
2779 | kind_str, ws->value.integer); | |
c906108c | 2780 | case TARGET_WAITKIND_STOPPED: |
f00150c9 DE |
2781 | return xstrprintf ("%sstopped, signal = %s", |
2782 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 2783 | case TARGET_WAITKIND_SIGNALLED: |
f00150c9 DE |
2784 | return xstrprintf ("%ssignalled, signal = %s", |
2785 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 2786 | case TARGET_WAITKIND_LOADED: |
f00150c9 | 2787 | return xstrprintf ("%sloaded", kind_str); |
c906108c | 2788 | case TARGET_WAITKIND_FORKED: |
f00150c9 | 2789 | return xstrprintf ("%sforked", kind_str); |
c906108c | 2790 | case TARGET_WAITKIND_VFORKED: |
f00150c9 | 2791 | return xstrprintf ("%svforked", kind_str); |
c906108c | 2792 | case TARGET_WAITKIND_EXECD: |
f00150c9 DE |
2793 | return xstrprintf ("%sexecd", kind_str); |
2794 | case TARGET_WAITKIND_SYSCALL_ENTRY: | |
2795 | return xstrprintf ("%ssyscall-entry", kind_str); | |
2796 | case TARGET_WAITKIND_SYSCALL_RETURN: | |
2797 | return xstrprintf ("%ssyscall-return", kind_str); | |
c906108c | 2798 | case TARGET_WAITKIND_SPURIOUS: |
f00150c9 DE |
2799 | return xstrprintf ("%sspurious", kind_str); |
2800 | case TARGET_WAITKIND_IGNORE: | |
2801 | return xstrprintf ("%signore", kind_str); | |
2802 | case TARGET_WAITKIND_NO_HISTORY: | |
2803 | return xstrprintf ("%sno-history", kind_str); | |
c906108c | 2804 | default: |
f00150c9 | 2805 | return xstrprintf ("%sunknown???", kind_str); |
c906108c | 2806 | } |
f00150c9 DE |
2807 | } |
2808 | ||
bf0c5130 | 2809 | static void |
56be3814 UW |
2810 | debug_print_register (const char * func, |
2811 | struct regcache *regcache, int regno) | |
bf0c5130 | 2812 | { |
f8d29908 | 2813 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
bf0c5130 | 2814 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 2815 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
2816 | && gdbarch_register_name (gdbarch, regno) != NULL |
2817 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
2818 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
2819 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
2820 | else |
2821 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 2822 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 2823 | { |
e17a4113 | 2824 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 2825 | int i, size = register_size (gdbarch, regno); |
d9d9c31f | 2826 | unsigned char buf[MAX_REGISTER_SIZE]; |
0ff58721 | 2827 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 2828 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 2829 | for (i = 0; i < size; i++) |
bf0c5130 AC |
2830 | { |
2831 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
2832 | } | |
81c4a259 | 2833 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 2834 | { |
e17a4113 | 2835 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
0b1553bc UW |
2836 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
2837 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
2838 | } |
2839 | } | |
2840 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2841 | } | |
2842 | ||
28439f5e PA |
2843 | void |
2844 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 2845 | { |
28439f5e PA |
2846 | struct target_ops *t; |
2847 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2848 | { | |
2849 | if (t->to_fetch_registers != NULL) | |
2850 | { | |
2851 | t->to_fetch_registers (t, regcache, regno); | |
2852 | if (targetdebug) | |
2853 | debug_print_register ("target_fetch_registers", regcache, regno); | |
2854 | return; | |
2855 | } | |
2856 | } | |
c906108c SS |
2857 | } |
2858 | ||
28439f5e PA |
2859 | void |
2860 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 2861 | { |
28439f5e PA |
2862 | |
2863 | struct target_ops *t; | |
2864 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2865 | { | |
2866 | if (t->to_store_registers != NULL) | |
2867 | { | |
2868 | t->to_store_registers (t, regcache, regno); | |
2869 | if (targetdebug) | |
2870 | { | |
2871 | debug_print_register ("target_store_registers", regcache, regno); | |
2872 | } | |
2873 | return; | |
2874 | } | |
2875 | } | |
2876 | ||
2877 | noprocess (); | |
c906108c SS |
2878 | } |
2879 | ||
2880 | static void | |
316f2060 | 2881 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 2882 | { |
316f2060 | 2883 | debug_target.to_prepare_to_store (regcache); |
c906108c | 2884 | |
96baa820 | 2885 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
2886 | } |
2887 | ||
2888 | static int | |
961cb7b5 | 2889 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
2890 | int write, struct mem_attrib *attrib, |
2891 | struct target_ops *target) | |
c906108c SS |
2892 | { |
2893 | int retval; | |
2894 | ||
c8e73a31 AC |
2895 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
2896 | attrib, target); | |
c906108c | 2897 | |
96baa820 | 2898 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 2899 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
5af949e3 UW |
2900 | paddress (target_gdbarch, memaddr), len, |
2901 | write ? "write" : "read", retval); | |
c906108c | 2902 | |
c906108c SS |
2903 | if (retval > 0) |
2904 | { | |
2905 | int i; | |
2906 | ||
96baa820 | 2907 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
2908 | for (i = 0; i < retval; i++) |
2909 | { | |
53b71562 | 2910 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
2911 | { |
2912 | if (targetdebug < 2 && i > 0) | |
2913 | { | |
2914 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
2915 | break; | |
2916 | } | |
2917 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2918 | } | |
2bc416ba | 2919 | |
96baa820 | 2920 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
2921 | } |
2922 | } | |
2923 | ||
96baa820 | 2924 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
2925 | |
2926 | return retval; | |
2927 | } | |
2928 | ||
2929 | static void | |
fba45db2 | 2930 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
2931 | { |
2932 | debug_target.to_files_info (target); | |
2933 | ||
96baa820 | 2934 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
2935 | } |
2936 | ||
2937 | static int | |
a6d9a66e UW |
2938 | debug_to_insert_breakpoint (struct gdbarch *gdbarch, |
2939 | struct bp_target_info *bp_tgt) | |
c906108c SS |
2940 | { |
2941 | int retval; | |
2942 | ||
a6d9a66e | 2943 | retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt); |
c906108c | 2944 | |
96baa820 | 2945 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2946 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2947 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2948 | (unsigned long) retval); |
c906108c SS |
2949 | return retval; |
2950 | } | |
2951 | ||
2952 | static int | |
a6d9a66e UW |
2953 | debug_to_remove_breakpoint (struct gdbarch *gdbarch, |
2954 | struct bp_target_info *bp_tgt) | |
c906108c SS |
2955 | { |
2956 | int retval; | |
2957 | ||
a6d9a66e | 2958 | retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt); |
c906108c | 2959 | |
96baa820 | 2960 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2961 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2962 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2963 | (unsigned long) retval); |
c906108c SS |
2964 | return retval; |
2965 | } | |
2966 | ||
ccaa32c7 GS |
2967 | static int |
2968 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2969 | { | |
2970 | int retval; | |
2971 | ||
2972 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2973 | ||
2974 | fprintf_unfiltered (gdb_stdlog, | |
2975 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2976 | (unsigned long) type, | |
2977 | (unsigned long) cnt, | |
2978 | (unsigned long) from_tty, | |
2979 | (unsigned long) retval); | |
2980 | return retval; | |
2981 | } | |
2982 | ||
e0d24f8d WZ |
2983 | static int |
2984 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2985 | { | |
2986 | CORE_ADDR retval; | |
2987 | ||
2988 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
2989 | ||
2990 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 2991 | "target_region_ok_for_hw_watchpoint (%ld, %ld) = 0x%lx\n", |
e0d24f8d WZ |
2992 | (unsigned long) addr, |
2993 | (unsigned long) len, | |
2994 | (unsigned long) retval); | |
2995 | return retval; | |
2996 | } | |
2997 | ||
ccaa32c7 GS |
2998 | static int |
2999 | debug_to_stopped_by_watchpoint (void) | |
3000 | { | |
3001 | int retval; | |
3002 | ||
3003 | retval = debug_target.to_stopped_by_watchpoint (); | |
3004 | ||
3005 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 3006 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
3007 | (unsigned long) retval); |
3008 | return retval; | |
3009 | } | |
3010 | ||
4aa7a7f5 JJ |
3011 | static int |
3012 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 3013 | { |
4aa7a7f5 | 3014 | int retval; |
ccaa32c7 | 3015 | |
4aa7a7f5 | 3016 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
3017 | |
3018 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
3019 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
3020 | (unsigned long)*addr, | |
3021 | (unsigned long)retval); | |
ccaa32c7 GS |
3022 | return retval; |
3023 | } | |
3024 | ||
5009afc5 AS |
3025 | static int |
3026 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
3027 | CORE_ADDR addr, | |
3028 | CORE_ADDR start, int length) | |
3029 | { | |
3030 | int retval; | |
3031 | ||
3032 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
3033 | start, length); | |
3034 | ||
3035 | fprintf_filtered (gdb_stdlog, | |
3036 | "target_watchpoint_addr_within_range (0x%lx, 0x%lx, %d) = %d\n", | |
3037 | (unsigned long) addr, (unsigned long) start, length, | |
3038 | retval); | |
3039 | return retval; | |
3040 | } | |
3041 | ||
ccaa32c7 | 3042 | static int |
a6d9a66e UW |
3043 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
3044 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
3045 | { |
3046 | int retval; | |
3047 | ||
a6d9a66e | 3048 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
3049 | |
3050 | fprintf_unfiltered (gdb_stdlog, | |
3051 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 3052 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
3053 | (unsigned long) retval); |
3054 | return retval; | |
3055 | } | |
3056 | ||
3057 | static int | |
a6d9a66e UW |
3058 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
3059 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
3060 | { |
3061 | int retval; | |
3062 | ||
a6d9a66e | 3063 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
3064 | |
3065 | fprintf_unfiltered (gdb_stdlog, | |
3066 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 3067 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
3068 | (unsigned long) retval); |
3069 | return retval; | |
3070 | } | |
3071 | ||
3072 | static int | |
3073 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
3074 | { | |
3075 | int retval; | |
3076 | ||
3077 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
3078 | ||
3079 | fprintf_unfiltered (gdb_stdlog, | |
3080 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
3081 | (unsigned long) addr, len, type, (unsigned long) retval); | |
3082 | return retval; | |
3083 | } | |
3084 | ||
3085 | static int | |
3086 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
3087 | { | |
3088 | int retval; | |
3089 | ||
ecde4882 | 3090 | retval = debug_target.to_remove_watchpoint (addr, len, type); |
ccaa32c7 GS |
3091 | |
3092 | fprintf_unfiltered (gdb_stdlog, | |
ecde4882 | 3093 | "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n", |
ccaa32c7 GS |
3094 | (unsigned long) addr, len, type, (unsigned long) retval); |
3095 | return retval; | |
3096 | } | |
3097 | ||
c906108c | 3098 | static void |
fba45db2 | 3099 | debug_to_terminal_init (void) |
c906108c SS |
3100 | { |
3101 | debug_target.to_terminal_init (); | |
3102 | ||
96baa820 | 3103 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
3104 | } |
3105 | ||
3106 | static void | |
fba45db2 | 3107 | debug_to_terminal_inferior (void) |
c906108c SS |
3108 | { |
3109 | debug_target.to_terminal_inferior (); | |
3110 | ||
96baa820 | 3111 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
3112 | } |
3113 | ||
3114 | static void | |
fba45db2 | 3115 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
3116 | { |
3117 | debug_target.to_terminal_ours_for_output (); | |
3118 | ||
96baa820 | 3119 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
3120 | } |
3121 | ||
3122 | static void | |
fba45db2 | 3123 | debug_to_terminal_ours (void) |
c906108c SS |
3124 | { |
3125 | debug_target.to_terminal_ours (); | |
3126 | ||
96baa820 | 3127 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
3128 | } |
3129 | ||
a790ad35 SC |
3130 | static void |
3131 | debug_to_terminal_save_ours (void) | |
3132 | { | |
3133 | debug_target.to_terminal_save_ours (); | |
3134 | ||
3135 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
3136 | } | |
3137 | ||
c906108c | 3138 | static void |
fba45db2 | 3139 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
3140 | { |
3141 | debug_target.to_terminal_info (arg, from_tty); | |
3142 | ||
96baa820 | 3143 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
3144 | from_tty); |
3145 | } | |
3146 | ||
c906108c | 3147 | static void |
fba45db2 | 3148 | debug_to_load (char *args, int from_tty) |
c906108c SS |
3149 | { |
3150 | debug_target.to_load (args, from_tty); | |
3151 | ||
96baa820 | 3152 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
3153 | } |
3154 | ||
3155 | static int | |
fba45db2 | 3156 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
3157 | { |
3158 | int retval; | |
3159 | ||
3160 | retval = debug_target.to_lookup_symbol (name, addrp); | |
3161 | ||
96baa820 | 3162 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
3163 | |
3164 | return retval; | |
3165 | } | |
3166 | ||
c906108c | 3167 | static void |
39f77062 | 3168 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 3169 | { |
39f77062 | 3170 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 3171 | |
96baa820 | 3172 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 3173 | PIDGET (ptid)); |
c906108c SS |
3174 | } |
3175 | ||
3176 | static void | |
fba45db2 | 3177 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
3178 | { |
3179 | debug_target.to_acknowledge_created_inferior (pid); | |
3180 | ||
96baa820 | 3181 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
3182 | pid); |
3183 | } | |
3184 | ||
fa113d1a | 3185 | static void |
fba45db2 | 3186 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 3187 | { |
fa113d1a | 3188 | debug_target.to_insert_fork_catchpoint (pid); |
c906108c | 3189 | |
fa113d1a AC |
3190 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n", |
3191 | pid); | |
c906108c SS |
3192 | } |
3193 | ||
3194 | static int | |
fba45db2 | 3195 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 3196 | { |
c5aa993b | 3197 | int retval; |
c906108c SS |
3198 | |
3199 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
3200 | ||
96baa820 | 3201 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 3202 | pid, retval); |
c906108c SS |
3203 | |
3204 | return retval; | |
3205 | } | |
3206 | ||
fa113d1a | 3207 | static void |
fba45db2 | 3208 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 3209 | { |
fa113d1a | 3210 | debug_target.to_insert_vfork_catchpoint (pid); |
c906108c | 3211 | |
fa113d1a AC |
3212 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n", |
3213 | pid); | |
c906108c SS |
3214 | } |
3215 | ||
3216 | static int | |
fba45db2 | 3217 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 3218 | { |
c5aa993b | 3219 | int retval; |
c906108c SS |
3220 | |
3221 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
3222 | ||
96baa820 | 3223 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 3224 | pid, retval); |
c906108c SS |
3225 | |
3226 | return retval; | |
3227 | } | |
3228 | ||
fa113d1a | 3229 | static void |
fba45db2 | 3230 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 3231 | { |
fa113d1a | 3232 | debug_target.to_insert_exec_catchpoint (pid); |
c906108c | 3233 | |
fa113d1a AC |
3234 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n", |
3235 | pid); | |
c906108c SS |
3236 | } |
3237 | ||
3238 | static int | |
fba45db2 | 3239 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 3240 | { |
c5aa993b | 3241 | int retval; |
c906108c SS |
3242 | |
3243 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
3244 | ||
96baa820 | 3245 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 3246 | pid, retval); |
c906108c SS |
3247 | |
3248 | return retval; | |
3249 | } | |
3250 | ||
c906108c | 3251 | static int |
fba45db2 | 3252 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 3253 | { |
c5aa993b | 3254 | int has_exited; |
c906108c SS |
3255 | |
3256 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
3257 | ||
96baa820 | 3258 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 3259 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
3260 | |
3261 | return has_exited; | |
3262 | } | |
3263 | ||
c906108c | 3264 | static int |
fba45db2 | 3265 | debug_to_can_run (void) |
c906108c SS |
3266 | { |
3267 | int retval; | |
3268 | ||
3269 | retval = debug_target.to_can_run (); | |
3270 | ||
96baa820 | 3271 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
3272 | |
3273 | return retval; | |
3274 | } | |
3275 | ||
3276 | static void | |
39f77062 | 3277 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 3278 | { |
39f77062 | 3279 | debug_target.to_notice_signals (ptid); |
c906108c | 3280 | |
39f77062 KB |
3281 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
3282 | PIDGET (ptid)); | |
c906108c SS |
3283 | } |
3284 | ||
c2250ad1 UW |
3285 | static struct gdbarch * |
3286 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3287 | { | |
3288 | struct gdbarch *retval; | |
3289 | ||
3290 | retval = debug_target.to_thread_architecture (ops, ptid); | |
3291 | ||
3292 | fprintf_unfiltered (gdb_stdlog, "target_thread_architecture (%s) = %p [%s]\n", | |
3293 | target_pid_to_str (ptid), retval, | |
3294 | gdbarch_bfd_arch_info (retval)->printable_name); | |
3295 | return retval; | |
3296 | } | |
3297 | ||
c906108c | 3298 | static void |
94cc34af | 3299 | debug_to_stop (ptid_t ptid) |
c906108c | 3300 | { |
94cc34af | 3301 | debug_target.to_stop (ptid); |
c906108c | 3302 | |
94cc34af PA |
3303 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
3304 | target_pid_to_str (ptid)); | |
c906108c SS |
3305 | } |
3306 | ||
96baa820 JM |
3307 | static void |
3308 | debug_to_rcmd (char *command, | |
d9fcf2fb | 3309 | struct ui_file *outbuf) |
96baa820 JM |
3310 | { |
3311 | debug_target.to_rcmd (command, outbuf); | |
3312 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
3313 | } | |
3314 | ||
c906108c | 3315 | static char * |
fba45db2 | 3316 | debug_to_pid_to_exec_file (int pid) |
c906108c | 3317 | { |
c5aa993b | 3318 | char *exec_file; |
c906108c SS |
3319 | |
3320 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
3321 | ||
96baa820 | 3322 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 3323 | pid, exec_file); |
c906108c SS |
3324 | |
3325 | return exec_file; | |
3326 | } | |
3327 | ||
c906108c | 3328 | static void |
fba45db2 | 3329 | setup_target_debug (void) |
c906108c SS |
3330 | { |
3331 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
3332 | ||
3333 | current_target.to_open = debug_to_open; | |
c906108c | 3334 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 3335 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 3336 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
3337 | current_target.to_files_info = debug_to_files_info; |
3338 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
3339 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
3340 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
3341 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
3342 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
3343 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
3344 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
3345 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
3346 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
5009afc5 | 3347 | current_target.to_watchpoint_addr_within_range = debug_to_watchpoint_addr_within_range; |
e0d24f8d | 3348 | current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint; |
c906108c SS |
3349 | current_target.to_terminal_init = debug_to_terminal_init; |
3350 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3351 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
3352 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 3353 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 3354 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c SS |
3355 | current_target.to_load = debug_to_load; |
3356 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
c906108c SS |
3357 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
3358 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
3359 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
3360 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
3361 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
3362 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
3363 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
3364 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 3365 | current_target.to_has_exited = debug_to_has_exited; |
c906108c SS |
3366 | current_target.to_can_run = debug_to_can_run; |
3367 | current_target.to_notice_signals = debug_to_notice_signals; | |
c906108c | 3368 | current_target.to_stop = debug_to_stop; |
96baa820 | 3369 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 3370 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 3371 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 3372 | } |
c906108c | 3373 | \f |
c5aa993b JM |
3374 | |
3375 | static char targ_desc[] = | |
3376 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
3377 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
3378 | core-file, and process, if any), as well as the symbol file name."; | |
3379 | ||
96baa820 JM |
3380 | static void |
3381 | do_monitor_command (char *cmd, | |
3382 | int from_tty) | |
3383 | { | |
2b5fe715 AC |
3384 | if ((current_target.to_rcmd |
3385 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 3386 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
3387 | && (debug_target.to_rcmd |
3388 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 3389 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
3390 | target_rcmd (cmd, gdb_stdtarg); |
3391 | } | |
3392 | ||
87680a14 JB |
3393 | /* Print the name of each layers of our target stack. */ |
3394 | ||
3395 | static void | |
3396 | maintenance_print_target_stack (char *cmd, int from_tty) | |
3397 | { | |
3398 | struct target_ops *t; | |
3399 | ||
3400 | printf_filtered (_("The current target stack is:\n")); | |
3401 | ||
3402 | for (t = target_stack; t != NULL; t = t->beneath) | |
3403 | { | |
3404 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
3405 | } | |
3406 | } | |
3407 | ||
c6ebd6cf VP |
3408 | /* Controls if async mode is permitted. */ |
3409 | int target_async_permitted = 0; | |
3410 | ||
3411 | /* The set command writes to this variable. If the inferior is | |
3412 | executing, linux_nat_async_permitted is *not* updated. */ | |
3413 | static int target_async_permitted_1 = 0; | |
3414 | ||
3415 | static void | |
3416 | set_maintenance_target_async_permitted (char *args, int from_tty, | |
3417 | struct cmd_list_element *c) | |
3418 | { | |
c35b1492 | 3419 | if (have_live_inferiors ()) |
c6ebd6cf VP |
3420 | { |
3421 | target_async_permitted_1 = target_async_permitted; | |
3422 | error (_("Cannot change this setting while the inferior is running.")); | |
3423 | } | |
3424 | ||
3425 | target_async_permitted = target_async_permitted_1; | |
3426 | } | |
3427 | ||
3428 | static void | |
3429 | show_maintenance_target_async_permitted (struct ui_file *file, int from_tty, | |
3430 | struct cmd_list_element *c, | |
3431 | const char *value) | |
3432 | { | |
3433 | fprintf_filtered (file, _("\ | |
3434 | Controlling the inferior in asynchronous mode is %s.\n"), value); | |
3435 | } | |
3436 | ||
c906108c | 3437 | void |
fba45db2 | 3438 | initialize_targets (void) |
c906108c SS |
3439 | { |
3440 | init_dummy_target (); | |
3441 | push_target (&dummy_target); | |
3442 | ||
3443 | add_info ("target", target_info, targ_desc); | |
3444 | add_info ("files", target_info, targ_desc); | |
3445 | ||
85c07804 AC |
3446 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
3447 | Set target debugging."), _("\ | |
3448 | Show target debugging."), _("\ | |
333dabeb DJ |
3449 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
3450 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
3451 | command."), |
3452 | NULL, | |
920d2a44 | 3453 | show_targetdebug, |
85c07804 | 3454 | &setdebuglist, &showdebuglist); |
3a11626d | 3455 | |
2bc416ba | 3456 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
3457 | &trust_readonly, _("\ |
3458 | Set mode for reading from readonly sections."), _("\ | |
3459 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
3460 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
3461 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 3462 | result in significant performance improvement for remote targets."), |
2c5b56ce | 3463 | NULL, |
920d2a44 | 3464 | show_trust_readonly, |
e707bbc2 | 3465 | &setlist, &showlist); |
96baa820 JM |
3466 | |
3467 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 3468 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 3469 | |
87680a14 JB |
3470 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
3471 | _("Print the name of each layer of the internal target stack."), | |
3472 | &maintenanceprintlist); | |
3473 | ||
c6ebd6cf VP |
3474 | add_setshow_boolean_cmd ("target-async", no_class, |
3475 | &target_async_permitted_1, _("\ | |
3476 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
3477 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
3478 | Tells gdb whether to control the inferior in asynchronous mode."), | |
3479 | set_maintenance_target_async_permitted, | |
3480 | show_maintenance_target_async_permitted, | |
3481 | &setlist, | |
3482 | &showlist); | |
3483 | ||
8add0441 | 3484 | target_dcache = dcache_init (); |
c906108c | 3485 | } |