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, |
4c38e0a4 | 4 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
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" |
2f4d8875 | 46 | #include "tracepoint.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
a14ed312 | 50 | static void default_terminal_info (char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
e0d24f8d WZ |
55 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
56 | ||
a14ed312 | 57 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 58 | |
c25c4a8b | 59 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 60 | |
a14ed312 | 61 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 62 | |
a14ed312 | 63 | static int return_zero (void); |
c906108c | 64 | |
a14ed312 | 65 | static int return_one (void); |
c906108c | 66 | |
ccaa32c7 GS |
67 | static int return_minus_one (void); |
68 | ||
a14ed312 | 69 | void target_ignore (void); |
c906108c | 70 | |
a14ed312 | 71 | static void target_command (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static struct target_ops *find_default_run_target (char *); |
c906108c | 74 | |
4b8a223f | 75 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 76 | enum target_object object, |
1b0ba102 AC |
77 | const char *annex, gdb_byte *readbuf, |
78 | const gdb_byte *writebuf, | |
8aa91c1e | 79 | ULONGEST offset, LONGEST len); |
0088c768 | 80 | |
cf7a04e8 DJ |
81 | static LONGEST current_xfer_partial (struct target_ops *ops, |
82 | enum target_object object, | |
83 | const char *annex, gdb_byte *readbuf, | |
84 | const gdb_byte *writebuf, | |
85 | ULONGEST offset, LONGEST len); | |
c906108c | 86 | |
cf7a04e8 DJ |
87 | static LONGEST target_xfer_partial (struct target_ops *ops, |
88 | enum target_object object, | |
89 | const char *annex, | |
90 | void *readbuf, const void *writebuf, | |
91 | ULONGEST offset, LONGEST len); | |
c906108c | 92 | |
c2250ad1 UW |
93 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
94 | ptid_t ptid); | |
95 | ||
a14ed312 | 96 | static void init_dummy_target (void); |
c906108c | 97 | |
aa869812 AC |
98 | static struct target_ops debug_target; |
99 | ||
a14ed312 | 100 | static void debug_to_open (char *, int); |
c906108c | 101 | |
316f2060 | 102 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 103 | |
a14ed312 | 104 | static void debug_to_files_info (struct target_ops *); |
c906108c | 105 | |
a6d9a66e UW |
106 | static int debug_to_insert_breakpoint (struct gdbarch *, |
107 | struct bp_target_info *); | |
c906108c | 108 | |
a6d9a66e UW |
109 | static int debug_to_remove_breakpoint (struct gdbarch *, |
110 | struct bp_target_info *); | |
c906108c | 111 | |
ccaa32c7 GS |
112 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
113 | ||
a6d9a66e UW |
114 | static int debug_to_insert_hw_breakpoint (struct gdbarch *, |
115 | struct bp_target_info *); | |
ccaa32c7 | 116 | |
a6d9a66e UW |
117 | static int debug_to_remove_hw_breakpoint (struct gdbarch *, |
118 | struct bp_target_info *); | |
ccaa32c7 GS |
119 | |
120 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
121 | ||
122 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
123 | ||
124 | static int debug_to_stopped_by_watchpoint (void); | |
125 | ||
4aa7a7f5 | 126 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 127 | |
5009afc5 AS |
128 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
129 | CORE_ADDR, CORE_ADDR, int); | |
130 | ||
e0d24f8d WZ |
131 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
132 | ||
a14ed312 | 133 | static void debug_to_terminal_init (void); |
c906108c | 134 | |
a14ed312 | 135 | static void debug_to_terminal_inferior (void); |
c906108c | 136 | |
a14ed312 | 137 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 138 | |
a790ad35 SC |
139 | static void debug_to_terminal_save_ours (void); |
140 | ||
a14ed312 | 141 | static void debug_to_terminal_ours (void); |
c906108c | 142 | |
a14ed312 | 143 | static void debug_to_terminal_info (char *, int); |
c906108c | 144 | |
a14ed312 | 145 | static void debug_to_load (char *, int); |
c906108c | 146 | |
a14ed312 | 147 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 148 | |
a14ed312 | 149 | static int debug_to_can_run (void); |
c906108c | 150 | |
39f77062 | 151 | static void debug_to_notice_signals (ptid_t); |
c906108c | 152 | |
94cc34af | 153 | static void debug_to_stop (ptid_t); |
c906108c | 154 | |
5ac10fd1 AC |
155 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
156 | wierd and mysterious ways. Putting the variable here lets those | |
157 | wierd and mysterious ways keep building while they are being | |
158 | converted to the inferior inheritance structure. */ | |
1df84f13 | 159 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 160 | |
c906108c | 161 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 162 | array; the current index into the array; the allocated size of the |
c906108c SS |
163 | array. */ |
164 | struct target_ops **target_structs; | |
165 | unsigned target_struct_size; | |
166 | unsigned target_struct_index; | |
167 | unsigned target_struct_allocsize; | |
168 | #define DEFAULT_ALLOCSIZE 10 | |
169 | ||
170 | /* The initial current target, so that there is always a semi-valid | |
171 | current target. */ | |
172 | ||
173 | static struct target_ops dummy_target; | |
174 | ||
175 | /* Top of target stack. */ | |
176 | ||
258b763a | 177 | static struct target_ops *target_stack; |
c906108c SS |
178 | |
179 | /* The target structure we are currently using to talk to a process | |
180 | or file or whatever "inferior" we have. */ | |
181 | ||
182 | struct target_ops current_target; | |
183 | ||
184 | /* Command list for target. */ | |
185 | ||
186 | static struct cmd_list_element *targetlist = NULL; | |
187 | ||
cf7a04e8 DJ |
188 | /* Nonzero if we should trust readonly sections from the |
189 | executable when reading memory. */ | |
190 | ||
191 | static int trust_readonly = 0; | |
192 | ||
8defab1a DJ |
193 | /* Nonzero if we should show true memory content including |
194 | memory breakpoint inserted by gdb. */ | |
195 | ||
196 | static int show_memory_breakpoints = 0; | |
197 | ||
c906108c SS |
198 | /* Non-zero if we want to see trace of target level stuff. */ |
199 | ||
200 | static int targetdebug = 0; | |
920d2a44 AC |
201 | static void |
202 | show_targetdebug (struct ui_file *file, int from_tty, | |
203 | struct cmd_list_element *c, const char *value) | |
204 | { | |
205 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
206 | } | |
c906108c | 207 | |
a14ed312 | 208 | static void setup_target_debug (void); |
c906108c | 209 | |
4e5d721f DE |
210 | /* The option sets this. */ |
211 | static int stack_cache_enabled_p_1 = 1; | |
212 | /* And set_stack_cache_enabled_p updates this. | |
213 | The reason for the separation is so that we don't flush the cache for | |
214 | on->on transitions. */ | |
215 | static int stack_cache_enabled_p = 1; | |
216 | ||
217 | /* This is called *after* the stack-cache has been set. | |
218 | Flush the cache for off->on and on->off transitions. | |
219 | There's no real need to flush the cache for on->off transitions, | |
220 | except cleanliness. */ | |
221 | ||
222 | static void | |
223 | set_stack_cache_enabled_p (char *args, int from_tty, | |
224 | struct cmd_list_element *c) | |
225 | { | |
226 | if (stack_cache_enabled_p != stack_cache_enabled_p_1) | |
227 | target_dcache_invalidate (); | |
228 | ||
229 | stack_cache_enabled_p = stack_cache_enabled_p_1; | |
230 | } | |
231 | ||
232 | static void | |
233 | show_stack_cache_enabled_p (struct ui_file *file, int from_tty, | |
234 | struct cmd_list_element *c, const char *value) | |
235 | { | |
236 | fprintf_filtered (file, _("Cache use for stack accesses is %s.\n"), value); | |
237 | } | |
238 | ||
239 | /* Cache of memory operations, to speed up remote access. */ | |
240 | static DCACHE *target_dcache; | |
241 | ||
242 | /* Invalidate the target dcache. */ | |
243 | ||
244 | void | |
245 | target_dcache_invalidate (void) | |
246 | { | |
247 | dcache_invalidate (target_dcache); | |
248 | } | |
4930751a | 249 | |
c906108c SS |
250 | /* The user just typed 'target' without the name of a target. */ |
251 | ||
c906108c | 252 | static void |
fba45db2 | 253 | target_command (char *arg, int from_tty) |
c906108c SS |
254 | { |
255 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
256 | gdb_stdout); | |
257 | } | |
258 | ||
c35b1492 PA |
259 | /* Default target_has_* methods for process_stratum targets. */ |
260 | ||
261 | int | |
262 | default_child_has_all_memory (struct target_ops *ops) | |
263 | { | |
264 | /* If no inferior selected, then we can't read memory here. */ | |
265 | if (ptid_equal (inferior_ptid, null_ptid)) | |
266 | return 0; | |
267 | ||
268 | return 1; | |
269 | } | |
270 | ||
271 | int | |
272 | default_child_has_memory (struct target_ops *ops) | |
273 | { | |
274 | /* If no inferior selected, then we can't read memory here. */ | |
275 | if (ptid_equal (inferior_ptid, null_ptid)) | |
276 | return 0; | |
277 | ||
278 | return 1; | |
279 | } | |
280 | ||
281 | int | |
282 | default_child_has_stack (struct target_ops *ops) | |
283 | { | |
284 | /* If no inferior selected, there's no stack. */ | |
285 | if (ptid_equal (inferior_ptid, null_ptid)) | |
286 | return 0; | |
287 | ||
288 | return 1; | |
289 | } | |
290 | ||
291 | int | |
292 | default_child_has_registers (struct target_ops *ops) | |
293 | { | |
294 | /* Can't read registers from no inferior. */ | |
295 | if (ptid_equal (inferior_ptid, null_ptid)) | |
296 | return 0; | |
297 | ||
298 | return 1; | |
299 | } | |
300 | ||
301 | int | |
302 | default_child_has_execution (struct target_ops *ops) | |
303 | { | |
304 | /* If there's no thread selected, then we can't make it run through | |
305 | hoops. */ | |
306 | if (ptid_equal (inferior_ptid, null_ptid)) | |
307 | return 0; | |
308 | ||
309 | return 1; | |
310 | } | |
311 | ||
312 | ||
313 | int | |
314 | target_has_all_memory_1 (void) | |
315 | { | |
316 | struct target_ops *t; | |
317 | ||
318 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
319 | if (t->to_has_all_memory (t)) | |
320 | return 1; | |
321 | ||
322 | return 0; | |
323 | } | |
324 | ||
325 | int | |
326 | target_has_memory_1 (void) | |
327 | { | |
328 | struct target_ops *t; | |
329 | ||
330 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
331 | if (t->to_has_memory (t)) | |
332 | return 1; | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
337 | int | |
338 | target_has_stack_1 (void) | |
339 | { | |
340 | struct target_ops *t; | |
341 | ||
342 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
343 | if (t->to_has_stack (t)) | |
344 | return 1; | |
345 | ||
346 | return 0; | |
347 | } | |
348 | ||
349 | int | |
350 | target_has_registers_1 (void) | |
351 | { | |
352 | struct target_ops *t; | |
353 | ||
354 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
355 | if (t->to_has_registers (t)) | |
356 | return 1; | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
361 | int | |
362 | target_has_execution_1 (void) | |
363 | { | |
364 | struct target_ops *t; | |
365 | ||
366 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
367 | if (t->to_has_execution (t)) | |
368 | return 1; | |
369 | ||
370 | return 0; | |
371 | } | |
372 | ||
c906108c SS |
373 | /* Add a possible target architecture to the list. */ |
374 | ||
375 | void | |
fba45db2 | 376 | add_target (struct target_ops *t) |
c906108c | 377 | { |
0088c768 | 378 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
379 | if (t->to_xfer_partial == NULL) |
380 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 381 | |
c35b1492 PA |
382 | if (t->to_has_all_memory == NULL) |
383 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
384 | ||
385 | if (t->to_has_memory == NULL) | |
386 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
387 | ||
388 | if (t->to_has_stack == NULL) | |
389 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
390 | ||
391 | if (t->to_has_registers == NULL) | |
392 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
393 | ||
394 | if (t->to_has_execution == NULL) | |
395 | t->to_has_execution = (int (*) (struct target_ops *)) return_zero; | |
396 | ||
c906108c SS |
397 | if (!target_structs) |
398 | { | |
399 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
400 | target_structs = (struct target_ops **) xmalloc | |
401 | (target_struct_allocsize * sizeof (*target_structs)); | |
402 | } | |
403 | if (target_struct_size >= target_struct_allocsize) | |
404 | { | |
405 | target_struct_allocsize *= 2; | |
406 | target_structs = (struct target_ops **) | |
c5aa993b JM |
407 | xrealloc ((char *) target_structs, |
408 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
409 | } |
410 | target_structs[target_struct_size++] = t; | |
c906108c SS |
411 | |
412 | if (targetlist == NULL) | |
1bedd215 AC |
413 | add_prefix_cmd ("target", class_run, target_command, _("\ |
414 | Connect to a target machine or process.\n\ | |
c906108c SS |
415 | The first argument is the type or protocol of the target machine.\n\ |
416 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
417 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 418 | `help target ' followed by the protocol name."), |
c906108c SS |
419 | &targetlist, "target ", 0, &cmdlist); |
420 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
421 | } | |
422 | ||
423 | /* Stub functions */ | |
424 | ||
425 | void | |
fba45db2 | 426 | target_ignore (void) |
c906108c SS |
427 | { |
428 | } | |
429 | ||
7d85a9c0 JB |
430 | void |
431 | target_kill (void) | |
432 | { | |
433 | struct target_ops *t; | |
434 | ||
435 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
436 | if (t->to_kill != NULL) | |
437 | { | |
438 | if (targetdebug) | |
439 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
440 | ||
441 | t->to_kill (t); | |
442 | return; | |
443 | } | |
444 | ||
445 | noprocess (); | |
446 | } | |
447 | ||
11cf8741 JM |
448 | void |
449 | target_load (char *arg, int from_tty) | |
450 | { | |
4e5d721f | 451 | target_dcache_invalidate (); |
11cf8741 JM |
452 | (*current_target.to_load) (arg, from_tty); |
453 | } | |
454 | ||
947b8855 PA |
455 | void |
456 | target_create_inferior (char *exec_file, char *args, | |
457 | char **env, int from_tty) | |
136d6dae VP |
458 | { |
459 | struct target_ops *t; | |
460 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
461 | { | |
462 | if (t->to_create_inferior != NULL) | |
463 | { | |
464 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
465 | if (targetdebug) |
466 | fprintf_unfiltered (gdb_stdlog, | |
467 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
468 | exec_file, args, from_tty); | |
136d6dae VP |
469 | return; |
470 | } | |
471 | } | |
472 | ||
473 | internal_error (__FILE__, __LINE__, | |
474 | "could not find a target to create inferior"); | |
475 | } | |
476 | ||
d9d2d8b6 PA |
477 | void |
478 | target_terminal_inferior (void) | |
479 | { | |
480 | /* A background resume (``run&'') should leave GDB in control of the | |
ba7f6c64 VP |
481 | terminal. Use target_can_async_p, not target_is_async_p, since at |
482 | this point the target is not async yet. However, if sync_execution | |
483 | is not set, we know it will become async prior to resume. */ | |
484 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
485 | return; |
486 | ||
487 | /* If GDB is resuming the inferior in the foreground, install | |
488 | inferior's terminal modes. */ | |
489 | (*current_target.to_terminal_inferior) (); | |
490 | } | |
136d6dae | 491 | |
c906108c | 492 | static int |
fba45db2 KB |
493 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
494 | struct target_ops *t) | |
c906108c | 495 | { |
c5aa993b JM |
496 | errno = EIO; /* Can't read/write this location */ |
497 | return 0; /* No bytes handled */ | |
c906108c SS |
498 | } |
499 | ||
500 | static void | |
fba45db2 | 501 | tcomplain (void) |
c906108c | 502 | { |
8a3fe4f8 | 503 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
504 | current_target.to_shortname); |
505 | } | |
506 | ||
507 | void | |
fba45db2 | 508 | noprocess (void) |
c906108c | 509 | { |
8a3fe4f8 | 510 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
511 | } |
512 | ||
c906108c | 513 | static int |
fba45db2 | 514 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 515 | { |
c5aa993b | 516 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
517 | } |
518 | ||
c906108c | 519 | static void |
fba45db2 | 520 | default_terminal_info (char *args, int from_tty) |
c906108c | 521 | { |
a3f17187 | 522 | printf_unfiltered (_("No saved terminal information.\n")); |
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); | |
a96d9b2e | 612 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 613 | INHERIT (to_has_exited, t); |
117de6a9 | 614 | /* Do not inherit to_mourn_inferiour. */ |
7998dfc3 AC |
615 | INHERIT (to_can_run, t); |
616 | INHERIT (to_notice_signals, t); | |
28439f5e PA |
617 | /* Do not inherit to_thread_alive. */ |
618 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 619 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 AC |
620 | INHERIT (to_extra_thread_info, t); |
621 | INHERIT (to_stop, t); | |
4b8a223f | 622 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 623 | INHERIT (to_rcmd, t); |
7998dfc3 | 624 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 625 | INHERIT (to_log_command, t); |
7998dfc3 | 626 | INHERIT (to_stratum, t); |
c35b1492 PA |
627 | /* Do not inherit to_has_all_memory */ |
628 | /* Do not inherit to_has_memory */ | |
629 | /* Do not inherit to_has_stack */ | |
630 | /* Do not inherit to_has_registers */ | |
631 | /* Do not inherit to_has_execution */ | |
7998dfc3 | 632 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
633 | INHERIT (to_can_async_p, t); |
634 | INHERIT (to_is_async_p, t); | |
635 | INHERIT (to_async, t); | |
b84876c2 | 636 | INHERIT (to_async_mask, t); |
7998dfc3 AC |
637 | INHERIT (to_find_memory_regions, t); |
638 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
639 | INHERIT (to_get_bookmark, t); |
640 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 641 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 642 | INHERIT (to_can_execute_reverse, t); |
c2250ad1 | 643 | INHERIT (to_thread_architecture, t); |
424163ea | 644 | /* Do not inherit to_read_description. */ |
0ef643c8 | 645 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 646 | /* Do not inherit to_search_memory. */ |
8a305172 | 647 | INHERIT (to_supports_multi_process, t); |
35b1e5cc SS |
648 | INHERIT (to_trace_init, t); |
649 | INHERIT (to_download_tracepoint, t); | |
650 | INHERIT (to_download_trace_state_variable, t); | |
651 | INHERIT (to_trace_set_readonly_regions, t); | |
652 | INHERIT (to_trace_start, t); | |
653 | INHERIT (to_get_trace_status, t); | |
654 | INHERIT (to_trace_stop, t); | |
655 | INHERIT (to_trace_find, t); | |
656 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
657 | INHERIT (to_save_trace_data, t); |
658 | INHERIT (to_upload_tracepoints, t); | |
659 | INHERIT (to_upload_trace_state_variables, t); | |
660 | INHERIT (to_get_raw_trace_data, t); | |
35b1e5cc | 661 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 662 | INHERIT (to_set_circular_trace_buffer, t); |
711e434b | 663 | INHERIT (to_get_tib_address, t); |
7998dfc3 | 664 | INHERIT (to_magic, t); |
fd79ecee | 665 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
666 | /* Do not inherit to_flash_erase. */ |
667 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
668 | } |
669 | #undef INHERIT | |
670 | ||
671 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
672 | it. Some entries are defaulted to a method that print an error, |
673 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
674 | |
675 | #define de_fault(field, value) \ | |
7998dfc3 AC |
676 | if (!current_target.field) \ |
677 | current_target.field = value | |
0d06e24b | 678 | |
2bc416ba DJ |
679 | de_fault (to_open, |
680 | (void (*) (char *, int)) | |
0d06e24b | 681 | tcomplain); |
2bc416ba DJ |
682 | de_fault (to_close, |
683 | (void (*) (int)) | |
0d06e24b | 684 | target_ignore); |
2bc416ba DJ |
685 | de_fault (to_post_attach, |
686 | (void (*) (int)) | |
0d06e24b | 687 | target_ignore); |
2bc416ba | 688 | de_fault (to_prepare_to_store, |
316f2060 | 689 | (void (*) (struct regcache *)) |
0d06e24b | 690 | noprocess); |
2bc416ba DJ |
691 | de_fault (deprecated_xfer_memory, |
692 | (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 693 | nomemory); |
2bc416ba DJ |
694 | de_fault (to_files_info, |
695 | (void (*) (struct target_ops *)) | |
0d06e24b | 696 | target_ignore); |
2bc416ba | 697 | de_fault (to_insert_breakpoint, |
0d06e24b | 698 | memory_insert_breakpoint); |
2bc416ba | 699 | de_fault (to_remove_breakpoint, |
0d06e24b | 700 | memory_remove_breakpoint); |
ccaa32c7 GS |
701 | de_fault (to_can_use_hw_breakpoint, |
702 | (int (*) (int, int, int)) | |
703 | return_zero); | |
704 | de_fault (to_insert_hw_breakpoint, | |
a6d9a66e | 705 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
706 | return_minus_one); |
707 | de_fault (to_remove_hw_breakpoint, | |
a6d9a66e | 708 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
709 | return_minus_one); |
710 | de_fault (to_insert_watchpoint, | |
711 | (int (*) (CORE_ADDR, int, int)) | |
712 | return_minus_one); | |
713 | de_fault (to_remove_watchpoint, | |
714 | (int (*) (CORE_ADDR, int, int)) | |
715 | return_minus_one); | |
716 | de_fault (to_stopped_by_watchpoint, | |
717 | (int (*) (void)) | |
718 | return_zero); | |
719 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 720 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 721 | return_zero); |
5009afc5 AS |
722 | de_fault (to_watchpoint_addr_within_range, |
723 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
724 | de_fault (to_region_ok_for_hw_watchpoint, |
725 | default_region_ok_for_hw_watchpoint); | |
2bc416ba DJ |
726 | de_fault (to_terminal_init, |
727 | (void (*) (void)) | |
0d06e24b | 728 | target_ignore); |
2bc416ba DJ |
729 | de_fault (to_terminal_inferior, |
730 | (void (*) (void)) | |
0d06e24b | 731 | target_ignore); |
2bc416ba DJ |
732 | de_fault (to_terminal_ours_for_output, |
733 | (void (*) (void)) | |
0d06e24b | 734 | target_ignore); |
2bc416ba DJ |
735 | de_fault (to_terminal_ours, |
736 | (void (*) (void)) | |
0d06e24b | 737 | target_ignore); |
2bc416ba DJ |
738 | de_fault (to_terminal_save_ours, |
739 | (void (*) (void)) | |
a790ad35 | 740 | target_ignore); |
2bc416ba | 741 | de_fault (to_terminal_info, |
0d06e24b | 742 | default_terminal_info); |
2bc416ba DJ |
743 | de_fault (to_load, |
744 | (void (*) (char *, int)) | |
0d06e24b | 745 | tcomplain); |
2bc416ba DJ |
746 | de_fault (to_lookup_symbol, |
747 | (int (*) (char *, CORE_ADDR *)) | |
0d06e24b | 748 | nosymbol); |
2bc416ba DJ |
749 | de_fault (to_post_startup_inferior, |
750 | (void (*) (ptid_t)) | |
0d06e24b | 751 | target_ignore); |
2bc416ba DJ |
752 | de_fault (to_acknowledge_created_inferior, |
753 | (void (*) (int)) | |
0d06e24b | 754 | target_ignore); |
2bc416ba DJ |
755 | de_fault (to_insert_fork_catchpoint, |
756 | (void (*) (int)) | |
0d06e24b | 757 | tcomplain); |
2bc416ba DJ |
758 | de_fault (to_remove_fork_catchpoint, |
759 | (int (*) (int)) | |
0d06e24b | 760 | tcomplain); |
2bc416ba DJ |
761 | de_fault (to_insert_vfork_catchpoint, |
762 | (void (*) (int)) | |
0d06e24b | 763 | tcomplain); |
2bc416ba DJ |
764 | de_fault (to_remove_vfork_catchpoint, |
765 | (int (*) (int)) | |
0d06e24b | 766 | tcomplain); |
2bc416ba DJ |
767 | de_fault (to_insert_exec_catchpoint, |
768 | (void (*) (int)) | |
0d06e24b | 769 | tcomplain); |
2bc416ba DJ |
770 | de_fault (to_remove_exec_catchpoint, |
771 | (int (*) (int)) | |
0d06e24b | 772 | tcomplain); |
a96d9b2e SDJ |
773 | de_fault (to_set_syscall_catchpoint, |
774 | (int (*) (int, int, int, int, int *)) | |
775 | tcomplain); | |
2bc416ba DJ |
776 | de_fault (to_has_exited, |
777 | (int (*) (int, int, int *)) | |
0d06e24b | 778 | return_zero); |
2bc416ba | 779 | de_fault (to_can_run, |
0d06e24b | 780 | return_zero); |
2bc416ba DJ |
781 | de_fault (to_notice_signals, |
782 | (void (*) (ptid_t)) | |
0d06e24b | 783 | target_ignore); |
2bc416ba DJ |
784 | de_fault (to_extra_thread_info, |
785 | (char *(*) (struct thread_info *)) | |
0d06e24b | 786 | return_zero); |
2bc416ba | 787 | de_fault (to_stop, |
94cc34af | 788 | (void (*) (ptid_t)) |
0d06e24b | 789 | target_ignore); |
cf7a04e8 | 790 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
791 | de_fault (to_rcmd, |
792 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 793 | tcomplain); |
2bc416ba DJ |
794 | de_fault (to_pid_to_exec_file, |
795 | (char *(*) (int)) | |
0d06e24b | 796 | return_zero); |
2bc416ba DJ |
797 | de_fault (to_async, |
798 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 799 | tcomplain); |
b84876c2 PA |
800 | de_fault (to_async_mask, |
801 | (int (*) (int)) | |
802 | return_one); | |
c2250ad1 UW |
803 | de_fault (to_thread_architecture, |
804 | default_thread_architecture); | |
424163ea | 805 | current_target.to_read_description = NULL; |
0ef643c8 JB |
806 | de_fault (to_get_ada_task_ptid, |
807 | (ptid_t (*) (long, long)) | |
808 | default_get_ada_task_ptid); | |
8a305172 PA |
809 | de_fault (to_supports_multi_process, |
810 | (int (*) (void)) | |
811 | return_zero); | |
35b1e5cc SS |
812 | de_fault (to_trace_init, |
813 | (void (*) (void)) | |
814 | tcomplain); | |
815 | de_fault (to_download_tracepoint, | |
816 | (void (*) (struct breakpoint *)) | |
817 | tcomplain); | |
818 | de_fault (to_download_trace_state_variable, | |
819 | (void (*) (struct trace_state_variable *)) | |
820 | tcomplain); | |
821 | de_fault (to_trace_set_readonly_regions, | |
822 | (void (*) (void)) | |
823 | tcomplain); | |
824 | de_fault (to_trace_start, | |
825 | (void (*) (void)) | |
826 | tcomplain); | |
827 | de_fault (to_get_trace_status, | |
00bf0b85 | 828 | (int (*) (struct trace_status *)) |
35b1e5cc SS |
829 | return_minus_one); |
830 | de_fault (to_trace_stop, | |
831 | (void (*) (void)) | |
832 | tcomplain); | |
833 | de_fault (to_trace_find, | |
834 | (int (*) (enum trace_find_type, int, ULONGEST, ULONGEST, int *)) | |
4136fdd2 | 835 | return_minus_one); |
35b1e5cc SS |
836 | de_fault (to_get_trace_state_variable_value, |
837 | (int (*) (int, LONGEST *)) | |
838 | return_zero); | |
00bf0b85 | 839 | de_fault (to_save_trace_data, |
011aacb0 | 840 | (int (*) (const char *)) |
00bf0b85 SS |
841 | tcomplain); |
842 | de_fault (to_upload_tracepoints, | |
843 | (int (*) (struct uploaded_tp **)) | |
844 | return_zero); | |
845 | de_fault (to_upload_trace_state_variables, | |
846 | (int (*) (struct uploaded_tsv **)) | |
847 | return_zero); | |
848 | de_fault (to_get_raw_trace_data, | |
849 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
850 | tcomplain); | |
35b1e5cc SS |
851 | de_fault (to_set_disconnected_tracing, |
852 | (void (*) (int)) | |
4daf5ac0 SS |
853 | target_ignore); |
854 | de_fault (to_set_circular_trace_buffer, | |
855 | (void (*) (int)) | |
856 | target_ignore); | |
711e434b PM |
857 | de_fault (to_get_tib_address, |
858 | (int (*) (ptid_t, CORE_ADDR *)) | |
859 | tcomplain); | |
c906108c | 860 | #undef de_fault |
c906108c | 861 | |
7998dfc3 AC |
862 | /* Finally, position the target-stack beneath the squashed |
863 | "current_target". That way code looking for a non-inherited | |
864 | target method can quickly and simply find it. */ | |
865 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
866 | |
867 | if (targetdebug) | |
868 | setup_target_debug (); | |
c906108c SS |
869 | } |
870 | ||
871 | /* Push a new target type into the stack of the existing target accessors, | |
872 | possibly superseding some of the existing accessors. | |
873 | ||
874 | Result is zero if the pushed target ended up on top of the stack, | |
875 | nonzero if at least one target is on top of it. | |
876 | ||
877 | Rather than allow an empty stack, we always have the dummy target at | |
878 | the bottom stratum, so we can call the function vectors without | |
879 | checking them. */ | |
880 | ||
881 | int | |
fba45db2 | 882 | push_target (struct target_ops *t) |
c906108c | 883 | { |
258b763a | 884 | struct target_ops **cur; |
c906108c SS |
885 | |
886 | /* Check magic number. If wrong, it probably means someone changed | |
887 | the struct definition, but not all the places that initialize one. */ | |
888 | if (t->to_magic != OPS_MAGIC) | |
889 | { | |
c5aa993b JM |
890 | fprintf_unfiltered (gdb_stderr, |
891 | "Magic number of %s target struct wrong\n", | |
892 | t->to_shortname); | |
e2e0b3e5 | 893 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
894 | } |
895 | ||
258b763a AC |
896 | /* Find the proper stratum to install this target in. */ |
897 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 898 | { |
258b763a | 899 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
900 | break; |
901 | } | |
902 | ||
258b763a | 903 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 904 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
905 | targets to CUR, and not just those at this stratum level. */ |
906 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
907 | { | |
908 | /* There's already something at this stratum level. Close it, | |
909 | and un-hook it from the stack. */ | |
910 | struct target_ops *tmp = (*cur); | |
911 | (*cur) = (*cur)->beneath; | |
912 | tmp->beneath = NULL; | |
f1c07ab0 | 913 | target_close (tmp, 0); |
258b763a | 914 | } |
c906108c SS |
915 | |
916 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
917 | t->beneath = (*cur); |
918 | (*cur) = t; | |
c906108c SS |
919 | |
920 | update_current_target (); | |
921 | ||
258b763a AC |
922 | /* Not on top? */ |
923 | return (t != target_stack); | |
c906108c SS |
924 | } |
925 | ||
2bc416ba | 926 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
927 | Return how many times it was removed (0 or 1). */ |
928 | ||
929 | int | |
fba45db2 | 930 | unpush_target (struct target_ops *t) |
c906108c | 931 | { |
258b763a AC |
932 | struct target_ops **cur; |
933 | struct target_ops *tmp; | |
c906108c | 934 | |
c8d104ad PA |
935 | if (t->to_stratum == dummy_stratum) |
936 | internal_error (__FILE__, __LINE__, | |
937 | "Attempt to unpush the dummy target"); | |
938 | ||
c906108c SS |
939 | /* Look for the specified target. Note that we assume that a target |
940 | can only occur once in the target stack. */ | |
941 | ||
258b763a AC |
942 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
943 | { | |
944 | if ((*cur) == t) | |
945 | break; | |
946 | } | |
c906108c | 947 | |
258b763a | 948 | if ((*cur) == NULL) |
c906108c SS |
949 | return 0; /* Didn't find target_ops, quit now */ |
950 | ||
5269965e AC |
951 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
952 | unconditional by moving it to before the above check that the | |
953 | target was in the target stack (something about "Change the way | |
954 | pushing and popping of targets work to support target overlays | |
955 | and inheritance"). This doesn't make much sense - only open | |
956 | targets should be closed. */ | |
957 | target_close (t, 0); | |
958 | ||
c906108c | 959 | /* Unchain the target */ |
258b763a AC |
960 | tmp = (*cur); |
961 | (*cur) = (*cur)->beneath; | |
962 | tmp->beneath = NULL; | |
c906108c SS |
963 | |
964 | update_current_target (); | |
c906108c SS |
965 | |
966 | return 1; | |
967 | } | |
968 | ||
969 | void | |
fba45db2 | 970 | pop_target (void) |
c906108c | 971 | { |
b52323fa | 972 | target_close (target_stack, 0); /* Let it clean up */ |
258b763a | 973 | if (unpush_target (target_stack) == 1) |
c906108c SS |
974 | return; |
975 | ||
c5aa993b JM |
976 | fprintf_unfiltered (gdb_stderr, |
977 | "pop_target couldn't find target %s\n", | |
978 | current_target.to_shortname); | |
e2e0b3e5 | 979 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
980 | } |
981 | ||
aa76d38d | 982 | void |
87ab71f0 | 983 | pop_all_targets_above (enum strata above_stratum, int quitting) |
aa76d38d | 984 | { |
87ab71f0 | 985 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 986 | { |
b52323fa | 987 | target_close (target_stack, quitting); |
aa76d38d PA |
988 | if (!unpush_target (target_stack)) |
989 | { | |
990 | fprintf_unfiltered (gdb_stderr, | |
991 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 992 | target_stack->to_shortname); |
aa76d38d PA |
993 | internal_error (__FILE__, __LINE__, |
994 | _("failed internal consistency check")); | |
995 | break; | |
996 | } | |
997 | } | |
998 | } | |
999 | ||
87ab71f0 PA |
1000 | void |
1001 | pop_all_targets (int quitting) | |
1002 | { | |
1003 | pop_all_targets_above (dummy_stratum, quitting); | |
1004 | } | |
1005 | ||
72f5cf0e | 1006 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1007 | current thread's thread-local storage with offset OFFSET. */ |
1008 | CORE_ADDR | |
1009 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1010 | { | |
1011 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1012 | struct target_ops *target; |
1013 | ||
1014 | for (target = current_target.beneath; | |
1015 | target != NULL; | |
1016 | target = target->beneath) | |
1017 | { | |
1018 | if (target->to_get_thread_local_address != NULL) | |
1019 | break; | |
1020 | } | |
9e35dae4 | 1021 | |
117de6a9 | 1022 | if (target != NULL |
1cf3db46 | 1023 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch)) |
9e35dae4 DJ |
1024 | { |
1025 | ptid_t ptid = inferior_ptid; | |
1026 | volatile struct gdb_exception ex; | |
1027 | ||
1028 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1029 | { | |
1030 | CORE_ADDR lm_addr; | |
1031 | ||
1032 | /* Fetch the load module address for this objfile. */ | |
1cf3db46 | 1033 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch, |
9e35dae4 DJ |
1034 | objfile); |
1035 | /* If it's 0, throw the appropriate exception. */ | |
1036 | if (lm_addr == 0) | |
1037 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1038 | _("TLS load module not found")); | |
1039 | ||
117de6a9 | 1040 | addr = target->to_get_thread_local_address (target, ptid, lm_addr, offset); |
9e35dae4 DJ |
1041 | } |
1042 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1043 | throw the error to some higher catcher. */ | |
1044 | if (ex.reason < 0) | |
1045 | { | |
1046 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1047 | ||
1048 | switch (ex.error) | |
1049 | { | |
1050 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
1051 | error (_("Cannot find thread-local variables in this thread library.")); | |
1052 | break; | |
1053 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1054 | if (objfile_is_library) | |
1055 | error (_("Cannot find shared library `%s' in dynamic" | |
1056 | " linker's load module list"), objfile->name); | |
1057 | else | |
1058 | error (_("Cannot find executable file `%s' in dynamic" | |
1059 | " linker's load module list"), objfile->name); | |
1060 | break; | |
1061 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1062 | if (objfile_is_library) | |
1063 | error (_("The inferior has not yet allocated storage for" | |
1064 | " thread-local variables in\n" | |
1065 | "the shared library `%s'\n" | |
1066 | "for %s"), | |
1067 | objfile->name, target_pid_to_str (ptid)); | |
1068 | else | |
1069 | error (_("The inferior has not yet allocated storage for" | |
1070 | " thread-local variables in\n" | |
1071 | "the executable `%s'\n" | |
1072 | "for %s"), | |
1073 | objfile->name, target_pid_to_str (ptid)); | |
1074 | break; | |
1075 | case TLS_GENERIC_ERROR: | |
1076 | if (objfile_is_library) | |
1077 | error (_("Cannot find thread-local storage for %s, " | |
1078 | "shared library %s:\n%s"), | |
1079 | target_pid_to_str (ptid), | |
1080 | objfile->name, ex.message); | |
1081 | else | |
1082 | error (_("Cannot find thread-local storage for %s, " | |
1083 | "executable file %s:\n%s"), | |
1084 | target_pid_to_str (ptid), | |
1085 | objfile->name, ex.message); | |
1086 | break; | |
1087 | default: | |
1088 | throw_exception (ex); | |
1089 | break; | |
1090 | } | |
1091 | } | |
1092 | } | |
1093 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1094 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1095 | else | |
1096 | error (_("Cannot find thread-local variables on this target")); | |
1097 | ||
1098 | return addr; | |
1099 | } | |
1100 | ||
c906108c SS |
1101 | #undef MIN |
1102 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1103 | ||
1104 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1105 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1106 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1107 | is responsible for freeing it. Return the number of bytes successfully | |
1108 | read. */ | |
1109 | ||
1110 | int | |
fba45db2 | 1111 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
1112 | { |
1113 | int tlen, origlen, offset, i; | |
1b0ba102 | 1114 | gdb_byte buf[4]; |
c906108c SS |
1115 | int errcode = 0; |
1116 | char *buffer; | |
1117 | int buffer_allocated; | |
1118 | char *bufptr; | |
1119 | unsigned int nbytes_read = 0; | |
1120 | ||
6217bf3e MS |
1121 | gdb_assert (string); |
1122 | ||
c906108c SS |
1123 | /* Small for testing. */ |
1124 | buffer_allocated = 4; | |
1125 | buffer = xmalloc (buffer_allocated); | |
1126 | bufptr = buffer; | |
1127 | ||
1128 | origlen = len; | |
1129 | ||
1130 | while (len > 0) | |
1131 | { | |
1132 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1133 | offset = memaddr & 3; | |
1134 | ||
1b0ba102 | 1135 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1136 | if (errcode != 0) |
1137 | { | |
1138 | /* The transfer request might have crossed the boundary to an | |
1139 | unallocated region of memory. Retry the transfer, requesting | |
1140 | a single byte. */ | |
1141 | tlen = 1; | |
1142 | offset = 0; | |
b8eb5af0 | 1143 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1144 | if (errcode != 0) |
1145 | goto done; | |
1146 | } | |
1147 | ||
1148 | if (bufptr - buffer + tlen > buffer_allocated) | |
1149 | { | |
1150 | unsigned int bytes; | |
1151 | bytes = bufptr - buffer; | |
1152 | buffer_allocated *= 2; | |
1153 | buffer = xrealloc (buffer, buffer_allocated); | |
1154 | bufptr = buffer + bytes; | |
1155 | } | |
1156 | ||
1157 | for (i = 0; i < tlen; i++) | |
1158 | { | |
1159 | *bufptr++ = buf[i + offset]; | |
1160 | if (buf[i + offset] == '\000') | |
1161 | { | |
1162 | nbytes_read += i + 1; | |
1163 | goto done; | |
1164 | } | |
1165 | } | |
1166 | ||
1167 | memaddr += tlen; | |
1168 | len -= tlen; | |
1169 | nbytes_read += tlen; | |
1170 | } | |
c5aa993b | 1171 | done: |
6217bf3e | 1172 | *string = buffer; |
c906108c SS |
1173 | if (errnop != NULL) |
1174 | *errnop = errcode; | |
c906108c SS |
1175 | return nbytes_read; |
1176 | } | |
1177 | ||
07b82ea5 PA |
1178 | struct target_section_table * |
1179 | target_get_section_table (struct target_ops *target) | |
1180 | { | |
1181 | struct target_ops *t; | |
1182 | ||
1183 | if (targetdebug) | |
1184 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1185 | ||
1186 | for (t = target; t != NULL; t = t->beneath) | |
1187 | if (t->to_get_section_table != NULL) | |
1188 | return (*t->to_get_section_table) (t); | |
1189 | ||
1190 | return NULL; | |
1191 | } | |
1192 | ||
8db32d44 | 1193 | /* Find a section containing ADDR. */ |
07b82ea5 | 1194 | |
0542c86d | 1195 | struct target_section * |
8db32d44 AC |
1196 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1197 | { | |
07b82ea5 | 1198 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1199 | struct target_section *secp; |
07b82ea5 PA |
1200 | |
1201 | if (table == NULL) | |
1202 | return NULL; | |
1203 | ||
1204 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1205 | { |
1206 | if (addr >= secp->addr && addr < secp->endaddr) | |
1207 | return secp; | |
1208 | } | |
1209 | return NULL; | |
1210 | } | |
1211 | ||
7f79c47e DE |
1212 | /* Perform a partial memory transfer. |
1213 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 DJ |
1214 | |
1215 | static LONGEST | |
4e5d721f DE |
1216 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
1217 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1218 | LONGEST len) | |
0779438d | 1219 | { |
cf7a04e8 DJ |
1220 | LONGEST res; |
1221 | int reg_len; | |
1222 | struct mem_region *region; | |
4e5d721f | 1223 | struct inferior *inf; |
cf7a04e8 DJ |
1224 | |
1225 | /* Zero length requests are ok and require no work. */ | |
1226 | if (len == 0) | |
1227 | return 0; | |
1228 | ||
07b82ea5 PA |
1229 | /* For accesses to unmapped overlay sections, read directly from |
1230 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1231 | if (readbuf != NULL && overlay_debugging) | |
1232 | { | |
1233 | struct obj_section *section = find_pc_overlay (memaddr); | |
1234 | if (pc_in_unmapped_range (memaddr, section)) | |
1235 | { | |
1236 | struct target_section_table *table | |
1237 | = target_get_section_table (ops); | |
1238 | const char *section_name = section->the_bfd_section->name; | |
1239 | memaddr = overlay_mapped_address (memaddr, section); | |
1240 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1241 | memaddr, len, | |
1242 | table->sections, | |
1243 | table->sections_end, | |
1244 | section_name); | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1249 | if (readbuf != NULL && trust_readonly) |
1250 | { | |
0542c86d | 1251 | struct target_section *secp; |
07b82ea5 | 1252 | struct target_section_table *table; |
cf7a04e8 DJ |
1253 | |
1254 | secp = target_section_by_addr (ops, memaddr); | |
1255 | if (secp != NULL | |
1256 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1257 | & SEC_READONLY)) | |
07b82ea5 PA |
1258 | { |
1259 | table = target_get_section_table (ops); | |
1260 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1261 | memaddr, len, | |
1262 | table->sections, | |
1263 | table->sections_end, | |
1264 | NULL); | |
1265 | } | |
98646950 UW |
1266 | } |
1267 | ||
cf7a04e8 DJ |
1268 | /* Try GDB's internal data cache. */ |
1269 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1270 | /* region->hi == 0 means there's no upper bound. */ |
1271 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1272 | reg_len = len; |
1273 | else | |
1274 | reg_len = region->hi - memaddr; | |
1275 | ||
1276 | switch (region->attrib.mode) | |
1277 | { | |
1278 | case MEM_RO: | |
1279 | if (writebuf != NULL) | |
1280 | return -1; | |
1281 | break; | |
1282 | ||
1283 | case MEM_WO: | |
1284 | if (readbuf != NULL) | |
1285 | return -1; | |
1286 | break; | |
a76d924d DJ |
1287 | |
1288 | case MEM_FLASH: | |
1289 | /* We only support writing to flash during "load" for now. */ | |
1290 | if (writebuf != NULL) | |
1291 | error (_("Writing to flash memory forbidden in this context")); | |
1292 | break; | |
4b5752d0 VP |
1293 | |
1294 | case MEM_NONE: | |
1295 | return -1; | |
cf7a04e8 DJ |
1296 | } |
1297 | ||
6c95b8df PA |
1298 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1299 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1300 | else | |
1301 | inf = NULL; | |
4e5d721f DE |
1302 | |
1303 | if (inf != NULL | |
2f4d8875 PA |
1304 | /* The dcache reads whole cache lines; that doesn't play well |
1305 | with reading from a trace buffer, because reading outside of | |
1306 | the collected memory range fails. */ | |
1307 | && get_traceframe_number () == -1 | |
4e5d721f DE |
1308 | && (region->attrib.cache |
1309 | || (stack_cache_enabled_p && object == TARGET_OBJECT_STACK_MEMORY))) | |
cf7a04e8 | 1310 | { |
cf7a04e8 | 1311 | if (readbuf != NULL) |
25f122dc | 1312 | res = dcache_xfer_memory (ops, target_dcache, memaddr, readbuf, |
cf7a04e8 DJ |
1313 | reg_len, 0); |
1314 | else | |
1315 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1316 | correctness dcache_xfer_memory should take readbuf and | |
1317 | writebuf. */ | |
25f122dc | 1318 | res = dcache_xfer_memory (ops, target_dcache, memaddr, |
cf7a04e8 DJ |
1319 | (void *) writebuf, |
1320 | reg_len, 1); | |
1321 | if (res <= 0) | |
1322 | return -1; | |
1323 | else | |
8defab1a DJ |
1324 | { |
1325 | if (readbuf && !show_memory_breakpoints) | |
1326 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1327 | return res; | |
1328 | } | |
cf7a04e8 DJ |
1329 | } |
1330 | ||
1331 | /* If none of those methods found the memory we wanted, fall back | |
1332 | to a target partial transfer. Normally a single call to | |
1333 | to_xfer_partial is enough; if it doesn't recognize an object | |
1334 | it will call the to_xfer_partial of the next target down. | |
1335 | But for memory this won't do. Memory is the only target | |
1336 | object which can be read from more than one valid target. | |
1337 | A core file, for instance, could have some of memory but | |
1338 | delegate other bits to the target below it. So, we must | |
1339 | manually try all targets. */ | |
1340 | ||
1341 | do | |
1342 | { | |
1343 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1344 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1345 | if (res > 0) |
8defab1a | 1346 | break; |
cf7a04e8 | 1347 | |
5ad3a4ca DJ |
1348 | /* We want to continue past core files to executables, but not |
1349 | past a running target's memory. */ | |
c35b1492 | 1350 | if (ops->to_has_all_memory (ops)) |
8defab1a | 1351 | break; |
5ad3a4ca | 1352 | |
cf7a04e8 DJ |
1353 | ops = ops->beneath; |
1354 | } | |
1355 | while (ops != NULL); | |
1356 | ||
8defab1a DJ |
1357 | if (readbuf && !show_memory_breakpoints) |
1358 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1359 | ||
41dcd03f DE |
1360 | /* Make sure the cache gets updated no matter what - if we are writing |
1361 | to the stack. Even if this write is not tagged as such, we still need | |
1362 | to update the cache. */ | |
1363 | ||
1364 | if (res > 0 | |
1365 | && inf != NULL | |
1366 | && writebuf != NULL | |
1367 | && !region->attrib.cache | |
1368 | && stack_cache_enabled_p | |
1369 | && object != TARGET_OBJECT_STACK_MEMORY) | |
1370 | { | |
7d4f32d3 | 1371 | dcache_update (target_dcache, memaddr, (void *) writebuf, res); |
41dcd03f DE |
1372 | } |
1373 | ||
cf7a04e8 DJ |
1374 | /* If we still haven't got anything, return the last error. We |
1375 | give up. */ | |
1376 | return res; | |
0779438d AC |
1377 | } |
1378 | ||
8defab1a DJ |
1379 | static void |
1380 | restore_show_memory_breakpoints (void *arg) | |
1381 | { | |
1382 | show_memory_breakpoints = (uintptr_t) arg; | |
1383 | } | |
1384 | ||
1385 | struct cleanup * | |
1386 | make_show_memory_breakpoints_cleanup (int show) | |
1387 | { | |
1388 | int current = show_memory_breakpoints; | |
1389 | show_memory_breakpoints = show; | |
1390 | ||
1391 | return make_cleanup (restore_show_memory_breakpoints, | |
1392 | (void *) (uintptr_t) current); | |
1393 | } | |
1394 | ||
7f79c47e DE |
1395 | /* For docs see target.h, to_xfer_partial. */ |
1396 | ||
27394598 AC |
1397 | static LONGEST |
1398 | target_xfer_partial (struct target_ops *ops, | |
1399 | enum target_object object, const char *annex, | |
1400 | void *readbuf, const void *writebuf, | |
1401 | ULONGEST offset, LONGEST len) | |
1402 | { | |
1403 | LONGEST retval; | |
1404 | ||
1405 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 DJ |
1406 | |
1407 | /* If this is a memory transfer, let the memory-specific code | |
1408 | have a look at it instead. Memory transfers are more | |
1409 | complicated. */ | |
4e5d721f DE |
1410 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY) |
1411 | retval = memory_xfer_partial (ops, object, readbuf, | |
1412 | writebuf, offset, len); | |
cf7a04e8 DJ |
1413 | else |
1414 | { | |
1415 | enum target_object raw_object = object; | |
1416 | ||
1417 | /* If this is a raw memory transfer, request the normal | |
1418 | memory object from other layers. */ | |
1419 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1420 | raw_object = TARGET_OBJECT_MEMORY; | |
1421 | ||
1422 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1423 | writebuf, offset, len); | |
1424 | } | |
1425 | ||
27394598 AC |
1426 | if (targetdebug) |
1427 | { | |
1428 | const unsigned char *myaddr = NULL; | |
1429 | ||
1430 | fprintf_unfiltered (gdb_stdlog, | |
53b71562 | 1431 | "%s:target_xfer_partial (%d, %s, %s, %s, %s, %s) = %s", |
27394598 AC |
1432 | ops->to_shortname, |
1433 | (int) object, | |
1434 | (annex ? annex : "(null)"), | |
53b71562 JB |
1435 | host_address_to_string (readbuf), |
1436 | host_address_to_string (writebuf), | |
0b1553bc UW |
1437 | core_addr_to_string_nz (offset), |
1438 | plongest (len), plongest (retval)); | |
27394598 AC |
1439 | |
1440 | if (readbuf) | |
1441 | myaddr = readbuf; | |
1442 | if (writebuf) | |
1443 | myaddr = writebuf; | |
1444 | if (retval > 0 && myaddr != NULL) | |
1445 | { | |
1446 | int i; | |
2bc416ba | 1447 | |
27394598 AC |
1448 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1449 | for (i = 0; i < retval; i++) | |
1450 | { | |
53b71562 | 1451 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1452 | { |
1453 | if (targetdebug < 2 && i > 0) | |
1454 | { | |
1455 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1456 | break; | |
1457 | } | |
1458 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1459 | } | |
2bc416ba | 1460 | |
27394598 AC |
1461 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1462 | } | |
1463 | } | |
2bc416ba | 1464 | |
27394598 AC |
1465 | fputc_unfiltered ('\n', gdb_stdlog); |
1466 | } | |
1467 | return retval; | |
1468 | } | |
1469 | ||
c906108c SS |
1470 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1471 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1472 | if any error occurs. | |
1473 | ||
1474 | If an error occurs, no guarantee is made about the contents of the data at | |
1475 | MYADDR. In particular, the caller should not depend upon partial reads | |
1476 | filling the buffer with good data. There is no way for the caller to know | |
1477 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 DJ |
1478 | deal with partial reads should call target_read (which will retry until |
1479 | it makes no progress, and then return how much was transferred). */ | |
c906108c SS |
1480 | |
1481 | int | |
fc1a4b47 | 1482 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 1483 | { |
c35b1492 PA |
1484 | /* Dispatch to the topmost target, not the flattened current_target. |
1485 | Memory accesses check target->to_has_(all_)memory, and the | |
1486 | flattened target doesn't inherit those. */ | |
1487 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1488 | myaddr, memaddr, len) == len) |
1489 | return 0; | |
0779438d | 1490 | else |
cf7a04e8 | 1491 | return EIO; |
c906108c SS |
1492 | } |
1493 | ||
4e5d721f DE |
1494 | /* Like target_read_memory, but specify explicitly that this is a read from |
1495 | the target's stack. This may trigger different cache behavior. */ | |
1496 | ||
1497 | int | |
1498 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, int len) | |
1499 | { | |
1500 | /* Dispatch to the topmost target, not the flattened current_target. | |
1501 | Memory accesses check target->to_has_(all_)memory, and the | |
1502 | flattened target doesn't inherit those. */ | |
1503 | ||
1504 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, | |
1505 | myaddr, memaddr, len) == len) | |
1506 | return 0; | |
1507 | else | |
1508 | return EIO; | |
1509 | } | |
1510 | ||
7f79c47e DE |
1511 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
1512 | Returns either 0 for success or an errno value if any error occurs. | |
1513 | If an error occurs, no guarantee is made about how much data got written. | |
1514 | Callers that can deal with partial writes should call target_write. */ | |
1515 | ||
c906108c | 1516 | int |
fc1a4b47 | 1517 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1518 | { |
c35b1492 PA |
1519 | /* Dispatch to the topmost target, not the flattened current_target. |
1520 | Memory accesses check target->to_has_(all_)memory, and the | |
1521 | flattened target doesn't inherit those. */ | |
1522 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1523 | myaddr, memaddr, len) == len) |
1524 | return 0; | |
0779438d | 1525 | else |
cf7a04e8 | 1526 | return EIO; |
c906108c | 1527 | } |
c5aa993b | 1528 | |
fd79ecee DJ |
1529 | /* Fetch the target's memory map. */ |
1530 | ||
1531 | VEC(mem_region_s) * | |
1532 | target_memory_map (void) | |
1533 | { | |
1534 | VEC(mem_region_s) *result; | |
1535 | struct mem_region *last_one, *this_one; | |
1536 | int ix; | |
1537 | struct target_ops *t; | |
1538 | ||
1539 | if (targetdebug) | |
1540 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1541 | ||
1542 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1543 | if (t->to_memory_map != NULL) | |
1544 | break; | |
1545 | ||
1546 | if (t == NULL) | |
1547 | return NULL; | |
1548 | ||
1549 | result = t->to_memory_map (t); | |
1550 | if (result == NULL) | |
1551 | return NULL; | |
1552 | ||
1553 | qsort (VEC_address (mem_region_s, result), | |
1554 | VEC_length (mem_region_s, result), | |
1555 | sizeof (struct mem_region), mem_region_cmp); | |
1556 | ||
1557 | /* Check that regions do not overlap. Simultaneously assign | |
1558 | a numbering for the "mem" commands to use to refer to | |
1559 | each region. */ | |
1560 | last_one = NULL; | |
1561 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1562 | { | |
1563 | this_one->number = ix; | |
1564 | ||
1565 | if (last_one && last_one->hi > this_one->lo) | |
1566 | { | |
1567 | warning (_("Overlapping regions in memory map: ignoring")); | |
1568 | VEC_free (mem_region_s, result); | |
1569 | return NULL; | |
1570 | } | |
1571 | last_one = this_one; | |
1572 | } | |
1573 | ||
1574 | return result; | |
1575 | } | |
1576 | ||
a76d924d DJ |
1577 | void |
1578 | target_flash_erase (ULONGEST address, LONGEST length) | |
1579 | { | |
1580 | struct target_ops *t; | |
1581 | ||
1582 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1583 | if (t->to_flash_erase != NULL) | |
1584 | { | |
1585 | if (targetdebug) | |
1586 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
5af949e3 | 1587 | hex_string (address), phex (length, 0)); |
8944021f DJ |
1588 | t->to_flash_erase (t, address, length); |
1589 | return; | |
a76d924d DJ |
1590 | } |
1591 | ||
1592 | tcomplain (); | |
1593 | } | |
1594 | ||
1595 | void | |
1596 | target_flash_done (void) | |
1597 | { | |
1598 | struct target_ops *t; | |
1599 | ||
1600 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1601 | if (t->to_flash_done != NULL) | |
1602 | { | |
1603 | if (targetdebug) | |
1604 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
8944021f DJ |
1605 | t->to_flash_done (t); |
1606 | return; | |
a76d924d DJ |
1607 | } |
1608 | ||
1609 | tcomplain (); | |
1610 | } | |
1611 | ||
920d2a44 AC |
1612 | static void |
1613 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1614 | struct cmd_list_element *c, const char *value) | |
1615 | { | |
1616 | fprintf_filtered (file, _("\ | |
1617 | Mode for reading from readonly sections is %s.\n"), | |
1618 | value); | |
1619 | } | |
3a11626d | 1620 | |
1e3ff5ad AC |
1621 | /* More generic transfers. */ |
1622 | ||
0088c768 | 1623 | static LONGEST |
8aa91c1e | 1624 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1625 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1626 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1627 | { |
1628 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1629 | && ops->deprecated_xfer_memory != NULL) |
1630 | /* If available, fall back to the target's | |
1631 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1632 | { |
4b8a223f | 1633 | int xfered = -1; |
0088c768 | 1634 | errno = 0; |
4b8a223f AC |
1635 | if (writebuf != NULL) |
1636 | { | |
1637 | void *buffer = xmalloc (len); | |
1638 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1639 | memcpy (buffer, writebuf, len); | |
c8e73a31 AC |
1640 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1641 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1642 | do_cleanups (cleanup); |
1643 | } | |
1644 | if (readbuf != NULL) | |
244e85c8 MS |
1645 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1646 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1647 | if (xfered > 0) |
1648 | return xfered; | |
1649 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1650 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1651 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1652 | return 0; |
1653 | else | |
1654 | return -1; | |
1655 | } | |
1656 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1657 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1658 | readbuf, writebuf, offset, len); | |
1659 | else | |
1660 | return -1; | |
1661 | } | |
1662 | ||
1663 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1664 | it does not need to handle memory specially; it just passes all | |
1665 | requests down the stack. */ | |
1666 | ||
1667 | static LONGEST | |
1668 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
1669 | const char *annex, gdb_byte *readbuf, | |
1670 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1671 | { | |
1672 | if (ops->beneath != NULL) | |
1673 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1674 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1675 | else |
1676 | return -1; | |
1677 | } | |
1678 | ||
7f79c47e | 1679 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1680 | |
13547ab6 | 1681 | static LONGEST |
1e3ff5ad AC |
1682 | target_read_partial (struct target_ops *ops, |
1683 | enum target_object object, | |
1b0ba102 | 1684 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1685 | ULONGEST offset, LONGEST len) |
1686 | { | |
27394598 | 1687 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1688 | } |
1689 | ||
13547ab6 | 1690 | static LONGEST |
1e3ff5ad AC |
1691 | target_write_partial (struct target_ops *ops, |
1692 | enum target_object object, | |
1b0ba102 | 1693 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1694 | ULONGEST offset, LONGEST len) |
1695 | { | |
27394598 | 1696 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1697 | } |
1698 | ||
1699 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1700 | |
1701 | /* For docs on target_read see target.h. */ | |
1702 | ||
1e3ff5ad AC |
1703 | LONGEST |
1704 | target_read (struct target_ops *ops, | |
1705 | enum target_object object, | |
1b0ba102 | 1706 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1707 | ULONGEST offset, LONGEST len) |
1708 | { | |
1709 | LONGEST xfered = 0; | |
1710 | while (xfered < len) | |
1711 | { | |
0088c768 | 1712 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 1713 | (gdb_byte *) buf + xfered, |
0088c768 | 1714 | offset + xfered, len - xfered); |
1e3ff5ad | 1715 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
1716 | if (xfer == 0) |
1717 | return xfered; | |
1718 | if (xfer < 0) | |
0088c768 | 1719 | return -1; |
1e3ff5ad AC |
1720 | xfered += xfer; |
1721 | QUIT; | |
1722 | } | |
1723 | return len; | |
1724 | } | |
1725 | ||
d5086790 VP |
1726 | LONGEST |
1727 | target_read_until_error (struct target_ops *ops, | |
1728 | enum target_object object, | |
1729 | const char *annex, gdb_byte *buf, | |
1730 | ULONGEST offset, LONGEST len) | |
1731 | { | |
1732 | LONGEST xfered = 0; | |
1733 | while (xfered < len) | |
1734 | { | |
1735 | LONGEST xfer = target_read_partial (ops, object, annex, | |
1736 | (gdb_byte *) buf + xfered, | |
1737 | offset + xfered, len - xfered); | |
1738 | /* Call an observer, notifying them of the xfer progress? */ | |
1739 | if (xfer == 0) | |
1740 | return xfered; | |
1741 | if (xfer < 0) | |
1742 | { | |
1743 | /* We've got an error. Try to read in smaller blocks. */ | |
1744 | ULONGEST start = offset + xfered; | |
1745 | ULONGEST remaining = len - xfered; | |
1746 | ULONGEST half; | |
1747 | ||
1748 | /* If an attempt was made to read a random memory address, | |
1749 | it's likely that the very first byte is not accessible. | |
1750 | Try reading the first byte, to avoid doing log N tries | |
1751 | below. */ | |
1752 | xfer = target_read_partial (ops, object, annex, | |
1753 | (gdb_byte *) buf + xfered, start, 1); | |
1754 | if (xfer <= 0) | |
1755 | return xfered; | |
1756 | start += 1; | |
1757 | remaining -= 1; | |
1758 | half = remaining/2; | |
1759 | ||
1760 | while (half > 0) | |
1761 | { | |
1762 | xfer = target_read_partial (ops, object, annex, | |
1763 | (gdb_byte *) buf + xfered, | |
1764 | start, half); | |
1765 | if (xfer == 0) | |
1766 | return xfered; | |
1767 | if (xfer < 0) | |
1768 | { | |
1769 | remaining = half; | |
1770 | } | |
1771 | else | |
1772 | { | |
1773 | /* We have successfully read the first half. So, the | |
1774 | error must be in the second half. Adjust start and | |
1775 | remaining to point at the second half. */ | |
1776 | xfered += xfer; | |
1777 | start += xfer; | |
1778 | remaining -= xfer; | |
1779 | } | |
1780 | half = remaining/2; | |
1781 | } | |
1782 | ||
1783 | return xfered; | |
1784 | } | |
1785 | xfered += xfer; | |
1786 | QUIT; | |
1787 | } | |
1788 | return len; | |
1789 | } | |
1790 | ||
cf7a04e8 DJ |
1791 | /* An alternative to target_write with progress callbacks. */ |
1792 | ||
1e3ff5ad | 1793 | LONGEST |
cf7a04e8 DJ |
1794 | target_write_with_progress (struct target_ops *ops, |
1795 | enum target_object object, | |
1796 | const char *annex, const gdb_byte *buf, | |
1797 | ULONGEST offset, LONGEST len, | |
1798 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
1799 | { |
1800 | LONGEST xfered = 0; | |
a76d924d DJ |
1801 | |
1802 | /* Give the progress callback a chance to set up. */ | |
1803 | if (progress) | |
1804 | (*progress) (0, baton); | |
1805 | ||
1e3ff5ad AC |
1806 | while (xfered < len) |
1807 | { | |
1808 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 1809 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 1810 | offset + xfered, len - xfered); |
cf7a04e8 | 1811 | |
13547ab6 DJ |
1812 | if (xfer == 0) |
1813 | return xfered; | |
1814 | if (xfer < 0) | |
0088c768 | 1815 | return -1; |
cf7a04e8 DJ |
1816 | |
1817 | if (progress) | |
1818 | (*progress) (xfer, baton); | |
1819 | ||
1e3ff5ad AC |
1820 | xfered += xfer; |
1821 | QUIT; | |
1822 | } | |
1823 | return len; | |
1824 | } | |
1825 | ||
7f79c47e DE |
1826 | /* For docs on target_write see target.h. */ |
1827 | ||
cf7a04e8 DJ |
1828 | LONGEST |
1829 | target_write (struct target_ops *ops, | |
1830 | enum target_object object, | |
1831 | const char *annex, const gdb_byte *buf, | |
1832 | ULONGEST offset, LONGEST len) | |
1833 | { | |
1834 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1835 | NULL, NULL); | |
1836 | } | |
1837 | ||
159f81f3 DJ |
1838 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1839 | the size of the transferred data. PADDING additional bytes are | |
1840 | available in *BUF_P. This is a helper function for | |
1841 | target_read_alloc; see the declaration of that function for more | |
1842 | information. */ | |
13547ab6 | 1843 | |
159f81f3 DJ |
1844 | static LONGEST |
1845 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
1846 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
1847 | { |
1848 | size_t buf_alloc, buf_pos; | |
1849 | gdb_byte *buf; | |
1850 | LONGEST n; | |
1851 | ||
1852 | /* This function does not have a length parameter; it reads the | |
1853 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1854 | from one target and partly from another (in a different stratum, | |
1855 | e.g. a core file and an executable). Both reasons make it | |
1856 | unsuitable for reading memory. */ | |
1857 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1858 | ||
1859 | /* Start by reading up to 4K at a time. The target will throttle | |
1860 | this number down if necessary. */ | |
1861 | buf_alloc = 4096; | |
1862 | buf = xmalloc (buf_alloc); | |
1863 | buf_pos = 0; | |
1864 | while (1) | |
1865 | { | |
1866 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 1867 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
1868 | if (n < 0) |
1869 | { | |
1870 | /* An error occurred. */ | |
1871 | xfree (buf); | |
1872 | return -1; | |
1873 | } | |
1874 | else if (n == 0) | |
1875 | { | |
1876 | /* Read all there was. */ | |
1877 | if (buf_pos == 0) | |
1878 | xfree (buf); | |
1879 | else | |
1880 | *buf_p = buf; | |
1881 | return buf_pos; | |
1882 | } | |
1883 | ||
1884 | buf_pos += n; | |
1885 | ||
1886 | /* If the buffer is filling up, expand it. */ | |
1887 | if (buf_alloc < buf_pos * 2) | |
1888 | { | |
1889 | buf_alloc *= 2; | |
1890 | buf = xrealloc (buf, buf_alloc); | |
1891 | } | |
1892 | ||
1893 | QUIT; | |
1894 | } | |
1895 | } | |
1896 | ||
159f81f3 DJ |
1897 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1898 | the size of the transferred data. See the declaration in "target.h" | |
1899 | function for more information about the return value. */ | |
1900 | ||
1901 | LONGEST | |
1902 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
1903 | const char *annex, gdb_byte **buf_p) | |
1904 | { | |
1905 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
1906 | } | |
1907 | ||
1908 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
1909 | returned as a string, allocated using xmalloc. If an error occurs | |
1910 | or the transfer is unsupported, NULL is returned. Empty objects | |
1911 | are returned as allocated but empty strings. A warning is issued | |
1912 | if the result contains any embedded NUL bytes. */ | |
1913 | ||
1914 | char * | |
1915 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
1916 | const char *annex) | |
1917 | { | |
1918 | gdb_byte *buffer; | |
1919 | LONGEST transferred; | |
1920 | ||
1921 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); | |
1922 | ||
1923 | if (transferred < 0) | |
1924 | return NULL; | |
1925 | ||
1926 | if (transferred == 0) | |
1927 | return xstrdup (""); | |
1928 | ||
1929 | buffer[transferred] = 0; | |
1930 | if (strlen (buffer) < transferred) | |
1931 | warning (_("target object %d, annex %s, " | |
1932 | "contained unexpected null characters"), | |
1933 | (int) object, annex ? annex : "(none)"); | |
1934 | ||
1935 | return (char *) buffer; | |
1936 | } | |
1937 | ||
b6591e8b AC |
1938 | /* Memory transfer methods. */ |
1939 | ||
1940 | void | |
1b0ba102 | 1941 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1942 | LONGEST len) |
1943 | { | |
07b82ea5 PA |
1944 | /* This method is used to read from an alternate, non-current |
1945 | target. This read must bypass the overlay support (as symbols | |
1946 | don't match this target), and GDB's internal cache (wrong cache | |
1947 | for this target). */ | |
1948 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b AC |
1949 | != len) |
1950 | memory_error (EIO, addr); | |
1951 | } | |
1952 | ||
1953 | ULONGEST | |
1954 | get_target_memory_unsigned (struct target_ops *ops, | |
e17a4113 | 1955 | CORE_ADDR addr, int len, enum bfd_endian byte_order) |
b6591e8b | 1956 | { |
f6519ebc | 1957 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1958 | |
1959 | gdb_assert (len <= sizeof (buf)); | |
1960 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 1961 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
1962 | } |
1963 | ||
c906108c | 1964 | static void |
fba45db2 | 1965 | target_info (char *args, int from_tty) |
c906108c SS |
1966 | { |
1967 | struct target_ops *t; | |
c906108c | 1968 | int has_all_mem = 0; |
c5aa993b | 1969 | |
c906108c | 1970 | if (symfile_objfile != NULL) |
a3f17187 | 1971 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 1972 | |
258b763a | 1973 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1974 | { |
c35b1492 | 1975 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
1976 | continue; |
1977 | ||
c5aa993b | 1978 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1979 | continue; |
1980 | if (has_all_mem) | |
a3f17187 | 1981 | printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n")); |
c5aa993b JM |
1982 | printf_unfiltered ("%s:\n", t->to_longname); |
1983 | (t->to_files_info) (t); | |
c35b1492 | 1984 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
1985 | } |
1986 | } | |
1987 | ||
fd79ecee DJ |
1988 | /* This function is called before any new inferior is created, e.g. |
1989 | by running a program, attaching, or connecting to a target. | |
1990 | It cleans up any state from previous invocations which might | |
1991 | change between runs. This is a subset of what target_preopen | |
1992 | resets (things which might change between targets). */ | |
1993 | ||
1994 | void | |
1995 | target_pre_inferior (int from_tty) | |
1996 | { | |
b9db4ced UW |
1997 | /* Clear out solib state. Otherwise the solib state of the previous |
1998 | inferior might have survived and is entirely wrong for the new | |
1999 | target. This has been observed on GNU/Linux using glibc 2.3. How | |
2000 | to reproduce: | |
2001 | ||
2002 | bash$ ./foo& | |
2003 | [1] 4711 | |
2004 | bash$ ./foo& | |
2005 | [1] 4712 | |
2006 | bash$ gdb ./foo | |
2007 | [...] | |
2008 | (gdb) attach 4711 | |
2009 | (gdb) detach | |
2010 | (gdb) attach 4712 | |
2011 | Cannot access memory at address 0xdeadbeef | |
2012 | */ | |
b9db4ced | 2013 | |
50c71eaf PA |
2014 | /* In some OSs, the shared library list is the same/global/shared |
2015 | across inferiors. If code is shared between processes, so are | |
2016 | memory regions and features. */ | |
2017 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2018 | { | |
2019 | no_shared_libraries (NULL, from_tty); | |
2020 | ||
2021 | invalidate_target_mem_regions (); | |
424163ea | 2022 | |
50c71eaf PA |
2023 | target_clear_description (); |
2024 | } | |
fd79ecee DJ |
2025 | } |
2026 | ||
b8fa0bfa PA |
2027 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2028 | inferior. */ | |
2029 | ||
2030 | static int | |
2031 | dispose_inferior (struct inferior *inf, void *args) | |
2032 | { | |
2033 | struct thread_info *thread; | |
2034 | ||
2035 | thread = any_thread_of_process (inf->pid); | |
2036 | if (thread) | |
2037 | { | |
2038 | switch_to_thread (thread->ptid); | |
2039 | ||
2040 | /* Core inferiors actually should be detached, not killed. */ | |
2041 | if (target_has_execution) | |
2042 | target_kill (); | |
2043 | else | |
2044 | target_detach (NULL, 0); | |
2045 | } | |
2046 | ||
2047 | return 0; | |
2048 | } | |
2049 | ||
c906108c SS |
2050 | /* This is to be called by the open routine before it does |
2051 | anything. */ | |
2052 | ||
2053 | void | |
fba45db2 | 2054 | target_preopen (int from_tty) |
c906108c | 2055 | { |
c5aa993b | 2056 | dont_repeat (); |
c906108c | 2057 | |
b8fa0bfa | 2058 | if (have_inferiors ()) |
c5aa993b | 2059 | { |
adf40b2e | 2060 | if (!from_tty |
b8fa0bfa PA |
2061 | || !have_live_inferiors () |
2062 | || query (_("A program is being debugged already. Kill it? "))) | |
2063 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2064 | else |
8a3fe4f8 | 2065 | error (_("Program not killed.")); |
c906108c SS |
2066 | } |
2067 | ||
2068 | /* Calling target_kill may remove the target from the stack. But if | |
2069 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2070 | /* Leave the exec target, though. The user may be switching from a |
2071 | live process to a core of the same program. */ | |
2072 | pop_all_targets_above (file_stratum, 0); | |
fd79ecee DJ |
2073 | |
2074 | target_pre_inferior (from_tty); | |
c906108c SS |
2075 | } |
2076 | ||
2077 | /* Detach a target after doing deferred register stores. */ | |
2078 | ||
2079 | void | |
fba45db2 | 2080 | target_detach (char *args, int from_tty) |
c906108c | 2081 | { |
136d6dae VP |
2082 | struct target_ops* t; |
2083 | ||
2567c7d9 | 2084 | if (gdbarch_has_global_breakpoints (target_gdbarch)) |
50c71eaf PA |
2085 | /* Don't remove global breakpoints here. They're removed on |
2086 | disconnection from the target. */ | |
2087 | ; | |
2088 | else | |
2089 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2090 | them before detaching. */ | |
6c95b8df | 2091 | remove_breakpoints_pid (PIDGET (inferior_ptid)); |
74960c60 | 2092 | |
24291992 PA |
2093 | prepare_for_detach (); |
2094 | ||
136d6dae VP |
2095 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2096 | { | |
2097 | if (t->to_detach != NULL) | |
2098 | { | |
2099 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2100 | if (targetdebug) |
2101 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2102 | args, from_tty); | |
136d6dae VP |
2103 | return; |
2104 | } | |
2105 | } | |
2106 | ||
2107 | internal_error (__FILE__, __LINE__, "could not find a target to detach"); | |
c906108c SS |
2108 | } |
2109 | ||
6ad8ae5c DJ |
2110 | void |
2111 | target_disconnect (char *args, int from_tty) | |
2112 | { | |
597320e7 DJ |
2113 | struct target_ops *t; |
2114 | ||
50c71eaf PA |
2115 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2116 | are global across processes, we have to remove them before | |
2117 | disconnecting. */ | |
74960c60 VP |
2118 | remove_breakpoints (); |
2119 | ||
597320e7 DJ |
2120 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2121 | if (t->to_disconnect != NULL) | |
2122 | { | |
2123 | if (targetdebug) | |
2124 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2125 | args, from_tty); | |
2126 | t->to_disconnect (t, args, from_tty); | |
2127 | return; | |
2128 | } | |
2129 | ||
2130 | tcomplain (); | |
6ad8ae5c DJ |
2131 | } |
2132 | ||
117de6a9 | 2133 | ptid_t |
47608cb1 | 2134 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2135 | { |
2136 | struct target_ops *t; | |
2137 | ||
2138 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2139 | { | |
2140 | if (t->to_wait != NULL) | |
2141 | { | |
47608cb1 | 2142 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
2143 | |
2144 | if (targetdebug) | |
2145 | { | |
2146 | char *status_string; | |
2147 | ||
2148 | status_string = target_waitstatus_to_string (status); | |
2149 | fprintf_unfiltered (gdb_stdlog, | |
2150 | "target_wait (%d, status) = %d, %s\n", | |
2151 | PIDGET (ptid), PIDGET (retval), | |
2152 | status_string); | |
2153 | xfree (status_string); | |
2154 | } | |
2155 | ||
2156 | return retval; | |
2157 | } | |
2158 | } | |
2159 | ||
2160 | noprocess (); | |
2161 | } | |
2162 | ||
2163 | char * | |
2164 | target_pid_to_str (ptid_t ptid) | |
2165 | { | |
2166 | struct target_ops *t; | |
2167 | ||
2168 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2169 | { | |
2170 | if (t->to_pid_to_str != NULL) | |
2171 | return (*t->to_pid_to_str) (t, ptid); | |
2172 | } | |
2173 | ||
2174 | return normal_pid_to_str (ptid); | |
2175 | } | |
2176 | ||
e1ac3328 VP |
2177 | void |
2178 | target_resume (ptid_t ptid, int step, enum target_signal signal) | |
2179 | { | |
28439f5e PA |
2180 | struct target_ops *t; |
2181 | ||
4e5d721f | 2182 | target_dcache_invalidate (); |
28439f5e PA |
2183 | |
2184 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2185 | { | |
2186 | if (t->to_resume != NULL) | |
2187 | { | |
2188 | t->to_resume (t, ptid, step, signal); | |
2189 | if (targetdebug) | |
2190 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2191 | PIDGET (ptid), | |
2192 | step ? "step" : "continue", | |
2193 | target_signal_to_name (signal)); | |
2194 | ||
e66408ed | 2195 | registers_changed_ptid (ptid); |
28439f5e PA |
2196 | set_executing (ptid, 1); |
2197 | set_running (ptid, 1); | |
edb3359d | 2198 | clear_inline_frame_state (ptid); |
28439f5e PA |
2199 | return; |
2200 | } | |
2201 | } | |
2202 | ||
2203 | noprocess (); | |
e1ac3328 | 2204 | } |
ee057212 DJ |
2205 | /* Look through the list of possible targets for a target that can |
2206 | follow forks. */ | |
2207 | ||
2208 | int | |
2209 | target_follow_fork (int follow_child) | |
2210 | { | |
2211 | struct target_ops *t; | |
2212 | ||
2213 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2214 | { | |
2215 | if (t->to_follow_fork != NULL) | |
2216 | { | |
2217 | int retval = t->to_follow_fork (t, follow_child); | |
2218 | if (targetdebug) | |
2219 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
2220 | follow_child, retval); | |
2221 | return retval; | |
2222 | } | |
2223 | } | |
2224 | ||
2225 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2226 | internal_error (__FILE__, __LINE__, | |
2227 | "could not find a target to follow fork"); | |
2228 | } | |
2229 | ||
136d6dae VP |
2230 | void |
2231 | target_mourn_inferior (void) | |
2232 | { | |
2233 | struct target_ops *t; | |
2234 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2235 | { | |
2236 | if (t->to_mourn_inferior != NULL) | |
2237 | { | |
2238 | t->to_mourn_inferior (t); | |
947b8855 PA |
2239 | if (targetdebug) |
2240 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2241 | |
2242 | /* We no longer need to keep handles on any of the object files. | |
2243 | Make sure to release them to avoid unnecessarily locking any | |
2244 | of them while we're not actually debugging. */ | |
2245 | bfd_cache_close_all (); | |
2246 | ||
136d6dae VP |
2247 | return; |
2248 | } | |
2249 | } | |
2250 | ||
2251 | internal_error (__FILE__, __LINE__, | |
2252 | "could not find a target to follow mourn inferiour"); | |
2253 | } | |
2254 | ||
424163ea DJ |
2255 | /* Look for a target which can describe architectural features, starting |
2256 | from TARGET. If we find one, return its description. */ | |
2257 | ||
2258 | const struct target_desc * | |
2259 | target_read_description (struct target_ops *target) | |
2260 | { | |
2261 | struct target_ops *t; | |
2262 | ||
2263 | for (t = target; t != NULL; t = t->beneath) | |
2264 | if (t->to_read_description != NULL) | |
2265 | { | |
2266 | const struct target_desc *tdesc; | |
2267 | ||
2268 | tdesc = t->to_read_description (t); | |
2269 | if (tdesc) | |
2270 | return tdesc; | |
2271 | } | |
2272 | ||
2273 | return NULL; | |
2274 | } | |
2275 | ||
08388c79 DE |
2276 | /* The default implementation of to_search_memory. |
2277 | This implements a basic search of memory, reading target memory and | |
2278 | performing the search here (as opposed to performing the search in on the | |
2279 | target side with, for example, gdbserver). */ | |
2280 | ||
2281 | int | |
2282 | simple_search_memory (struct target_ops *ops, | |
2283 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2284 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2285 | CORE_ADDR *found_addrp) | |
2286 | { | |
2287 | /* NOTE: also defined in find.c testcase. */ | |
2288 | #define SEARCH_CHUNK_SIZE 16000 | |
2289 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2290 | /* Buffer to hold memory contents for searching. */ | |
2291 | gdb_byte *search_buf; | |
2292 | unsigned search_buf_size; | |
2293 | struct cleanup *old_cleanups; | |
2294 | ||
2295 | search_buf_size = chunk_size + pattern_len - 1; | |
2296 | ||
2297 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2298 | if (search_space_len < search_buf_size) | |
2299 | search_buf_size = search_space_len; | |
2300 | ||
2301 | search_buf = malloc (search_buf_size); | |
2302 | if (search_buf == NULL) | |
5e1471f5 | 2303 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2304 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2305 | ||
2306 | /* Prime the search buffer. */ | |
2307 | ||
2308 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2309 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2310 | { | |
5e1471f5 | 2311 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
2312 | hex_string (start_addr)); |
2313 | do_cleanups (old_cleanups); | |
2314 | return -1; | |
2315 | } | |
2316 | ||
2317 | /* Perform the search. | |
2318 | ||
2319 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2320 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2321 | read in another N bytes. */ | |
2322 | ||
2323 | while (search_space_len >= pattern_len) | |
2324 | { | |
2325 | gdb_byte *found_ptr; | |
2326 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2327 | ||
2328 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2329 | pattern, pattern_len); | |
2330 | ||
2331 | if (found_ptr != NULL) | |
2332 | { | |
2333 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
2334 | *found_addrp = found_addr; | |
2335 | do_cleanups (old_cleanups); | |
2336 | return 1; | |
2337 | } | |
2338 | ||
2339 | /* Not found in this chunk, skip to next chunk. */ | |
2340 | ||
2341 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2342 | if (search_space_len >= chunk_size) | |
2343 | search_space_len -= chunk_size; | |
2344 | else | |
2345 | search_space_len = 0; | |
2346 | ||
2347 | if (search_space_len >= pattern_len) | |
2348 | { | |
2349 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2350 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2351 | int nr_to_read; |
2352 | ||
2353 | /* Copy the trailing part of the previous iteration to the front | |
2354 | of the buffer for the next iteration. */ | |
2355 | gdb_assert (keep_len == pattern_len - 1); | |
2356 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2357 | ||
2358 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2359 | ||
2360 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2361 | search_buf + keep_len, read_addr, | |
2362 | nr_to_read) != nr_to_read) | |
2363 | { | |
5e1471f5 | 2364 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
2365 | hex_string (read_addr)); |
2366 | do_cleanups (old_cleanups); | |
2367 | return -1; | |
2368 | } | |
2369 | ||
2370 | start_addr += chunk_size; | |
2371 | } | |
2372 | } | |
2373 | ||
2374 | /* Not found. */ | |
2375 | ||
2376 | do_cleanups (old_cleanups); | |
2377 | return 0; | |
2378 | } | |
2379 | ||
2380 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2381 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2382 | ||
2383 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2384 | requiring halting of the search (e.g. memory read error). | |
2385 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2386 | ||
2387 | int | |
2388 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2389 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2390 | CORE_ADDR *found_addrp) | |
2391 | { | |
2392 | struct target_ops *t; | |
2393 | int found; | |
2394 | ||
2395 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2396 | so we have to scan the target stack and handle targetdebug | |
2397 | ourselves. */ | |
2398 | ||
2399 | if (targetdebug) | |
2400 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2401 | hex_string (start_addr)); | |
2402 | ||
2403 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2404 | if (t->to_search_memory != NULL) | |
2405 | break; | |
2406 | ||
2407 | if (t != NULL) | |
2408 | { | |
2409 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2410 | pattern, pattern_len, found_addrp); | |
2411 | } | |
2412 | else | |
2413 | { | |
2414 | /* If a special version of to_search_memory isn't available, use the | |
2415 | simple version. */ | |
c35b1492 | 2416 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2417 | start_addr, search_space_len, |
2418 | pattern, pattern_len, found_addrp); | |
2419 | } | |
2420 | ||
2421 | if (targetdebug) | |
2422 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2423 | ||
2424 | return found; | |
2425 | } | |
2426 | ||
8edfe269 DJ |
2427 | /* Look through the currently pushed targets. If none of them will |
2428 | be able to restart the currently running process, issue an error | |
2429 | message. */ | |
2430 | ||
2431 | void | |
2432 | target_require_runnable (void) | |
2433 | { | |
2434 | struct target_ops *t; | |
2435 | ||
2436 | for (t = target_stack; t != NULL; t = t->beneath) | |
2437 | { | |
2438 | /* If this target knows how to create a new program, then | |
2439 | assume we will still be able to after killing the current | |
2440 | one. Either killing and mourning will not pop T, or else | |
2441 | find_default_run_target will find it again. */ | |
2442 | if (t->to_create_inferior != NULL) | |
2443 | return; | |
2444 | ||
2445 | /* Do not worry about thread_stratum targets that can not | |
2446 | create inferiors. Assume they will be pushed again if | |
2447 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2448 | if (t->to_stratum == thread_stratum |
2449 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2450 | continue; |
2451 | ||
2452 | error (_("\ | |
2453 | The \"%s\" target does not support \"run\". Try \"help target\" or \"continue\"."), | |
2454 | t->to_shortname); | |
2455 | } | |
2456 | ||
2457 | /* This function is only called if the target is running. In that | |
2458 | case there should have been a process_stratum target and it | |
2459 | should either know how to create inferiors, or not... */ | |
2460 | internal_error (__FILE__, __LINE__, "No targets found"); | |
2461 | } | |
2462 | ||
c906108c SS |
2463 | /* Look through the list of possible targets for a target that can |
2464 | execute a run or attach command without any other data. This is | |
2465 | used to locate the default process stratum. | |
2466 | ||
5f667f2d PA |
2467 | If DO_MESG is not NULL, the result is always valid (error() is |
2468 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2469 | |
2470 | static struct target_ops * | |
fba45db2 | 2471 | find_default_run_target (char *do_mesg) |
c906108c SS |
2472 | { |
2473 | struct target_ops **t; | |
2474 | struct target_ops *runable = NULL; | |
2475 | int count; | |
2476 | ||
2477 | count = 0; | |
2478 | ||
2479 | for (t = target_structs; t < target_structs + target_struct_size; | |
2480 | ++t) | |
2481 | { | |
c5aa993b | 2482 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2483 | { |
2484 | runable = *t; | |
2485 | ++count; | |
2486 | } | |
2487 | } | |
2488 | ||
2489 | if (count != 1) | |
5f667f2d PA |
2490 | { |
2491 | if (do_mesg) | |
2492 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2493 | else | |
2494 | return NULL; | |
2495 | } | |
c906108c SS |
2496 | |
2497 | return runable; | |
2498 | } | |
2499 | ||
2500 | void | |
136d6dae | 2501 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2502 | { |
2503 | struct target_ops *t; | |
2504 | ||
c5aa993b | 2505 | t = find_default_run_target ("attach"); |
136d6dae | 2506 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2507 | return; |
2508 | } | |
2509 | ||
c906108c | 2510 | void |
136d6dae VP |
2511 | find_default_create_inferior (struct target_ops *ops, |
2512 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2513 | int from_tty) |
c906108c SS |
2514 | { |
2515 | struct target_ops *t; | |
2516 | ||
c5aa993b | 2517 | t = find_default_run_target ("run"); |
136d6dae | 2518 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
2519 | return; |
2520 | } | |
2521 | ||
2c0b251b | 2522 | static int |
b84876c2 PA |
2523 | find_default_can_async_p (void) |
2524 | { | |
2525 | struct target_ops *t; | |
2526 | ||
5f667f2d PA |
2527 | /* This may be called before the target is pushed on the stack; |
2528 | look for the default process stratum. If there's none, gdb isn't | |
2529 | configured with a native debugger, and target remote isn't | |
2530 | connected yet. */ | |
2531 | t = find_default_run_target (NULL); | |
2532 | if (t && t->to_can_async_p) | |
b84876c2 PA |
2533 | return (t->to_can_async_p) (); |
2534 | return 0; | |
2535 | } | |
2536 | ||
2c0b251b | 2537 | static int |
b84876c2 PA |
2538 | find_default_is_async_p (void) |
2539 | { | |
2540 | struct target_ops *t; | |
2541 | ||
5f667f2d PA |
2542 | /* This may be called before the target is pushed on the stack; |
2543 | look for the default process stratum. If there's none, gdb isn't | |
2544 | configured with a native debugger, and target remote isn't | |
2545 | connected yet. */ | |
2546 | t = find_default_run_target (NULL); | |
2547 | if (t && t->to_is_async_p) | |
b84876c2 PA |
2548 | return (t->to_is_async_p) (); |
2549 | return 0; | |
2550 | } | |
2551 | ||
2c0b251b | 2552 | static int |
9908b566 VP |
2553 | find_default_supports_non_stop (void) |
2554 | { | |
2555 | struct target_ops *t; | |
2556 | ||
2557 | t = find_default_run_target (NULL); | |
2558 | if (t && t->to_supports_non_stop) | |
2559 | return (t->to_supports_non_stop) (); | |
2560 | return 0; | |
2561 | } | |
2562 | ||
2563 | int | |
2c0b251b | 2564 | target_supports_non_stop (void) |
9908b566 VP |
2565 | { |
2566 | struct target_ops *t; | |
2567 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
2568 | if (t->to_supports_non_stop) | |
2569 | return t->to_supports_non_stop (); | |
2570 | ||
2571 | return 0; | |
2572 | } | |
2573 | ||
2574 | ||
07e059b5 VP |
2575 | char * |
2576 | target_get_osdata (const char *type) | |
2577 | { | |
07e059b5 VP |
2578 | struct target_ops *t; |
2579 | ||
739ef7fb PA |
2580 | /* If we're already connected to something that can get us OS |
2581 | related data, use it. Otherwise, try using the native | |
2582 | target. */ | |
2583 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 2584 | t = current_target.beneath; |
739ef7fb PA |
2585 | else |
2586 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
2587 | |
2588 | if (!t) | |
2589 | return NULL; | |
2590 | ||
6d097e65 | 2591 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
2592 | } |
2593 | ||
6c95b8df PA |
2594 | /* Determine the current address space of thread PTID. */ |
2595 | ||
2596 | struct address_space * | |
2597 | target_thread_address_space (ptid_t ptid) | |
2598 | { | |
c0694254 | 2599 | struct address_space *aspace; |
6c95b8df | 2600 | struct inferior *inf; |
c0694254 PA |
2601 | struct target_ops *t; |
2602 | ||
2603 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2604 | { | |
2605 | if (t->to_thread_address_space != NULL) | |
2606 | { | |
2607 | aspace = t->to_thread_address_space (t, ptid); | |
2608 | gdb_assert (aspace); | |
6c95b8df | 2609 | |
c0694254 PA |
2610 | if (targetdebug) |
2611 | fprintf_unfiltered (gdb_stdlog, | |
2612 | "target_thread_address_space (%s) = %d\n", | |
2613 | target_pid_to_str (ptid), | |
2614 | address_space_num (aspace)); | |
2615 | return aspace; | |
2616 | } | |
2617 | } | |
6c95b8df PA |
2618 | |
2619 | /* Fall-back to the "main" address space of the inferior. */ | |
2620 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
2621 | ||
2622 | if (inf == NULL || inf->aspace == NULL) | |
2623 | internal_error (__FILE__, __LINE__, "\ | |
2624 | Can't determine the current address space of thread %s\n", | |
2625 | target_pid_to_str (ptid)); | |
2626 | ||
2627 | return inf->aspace; | |
2628 | } | |
2629 | ||
e0d24f8d WZ |
2630 | static int |
2631 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2632 | { | |
ffe5a37e | 2633 | return (len <= gdbarch_ptr_bit (target_gdbarch) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
2634 | } |
2635 | ||
5009afc5 AS |
2636 | static int |
2637 | default_watchpoint_addr_within_range (struct target_ops *target, | |
2638 | CORE_ADDR addr, | |
2639 | CORE_ADDR start, int length) | |
2640 | { | |
2641 | return addr >= start && addr < start + length; | |
2642 | } | |
2643 | ||
c2250ad1 UW |
2644 | static struct gdbarch * |
2645 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
2646 | { | |
2647 | return target_gdbarch; | |
2648 | } | |
2649 | ||
c906108c | 2650 | static int |
fba45db2 | 2651 | return_zero (void) |
c906108c SS |
2652 | { |
2653 | return 0; | |
2654 | } | |
2655 | ||
2656 | static int | |
fba45db2 | 2657 | return_one (void) |
c906108c SS |
2658 | { |
2659 | return 1; | |
2660 | } | |
2661 | ||
ccaa32c7 GS |
2662 | static int |
2663 | return_minus_one (void) | |
2664 | { | |
2665 | return -1; | |
2666 | } | |
2667 | ||
7a292a7a SS |
2668 | /* Find a single runnable target in the stack and return it. If for |
2669 | some reason there is more than one, return NULL. */ | |
2670 | ||
2671 | struct target_ops * | |
fba45db2 | 2672 | find_run_target (void) |
7a292a7a SS |
2673 | { |
2674 | struct target_ops **t; | |
2675 | struct target_ops *runable = NULL; | |
2676 | int count; | |
c5aa993b | 2677 | |
7a292a7a | 2678 | count = 0; |
c5aa993b | 2679 | |
7a292a7a SS |
2680 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
2681 | { | |
c5aa993b | 2682 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
2683 | { |
2684 | runable = *t; | |
2685 | ++count; | |
2686 | } | |
2687 | } | |
c5aa993b | 2688 | |
7a292a7a SS |
2689 | return (count == 1 ? runable : NULL); |
2690 | } | |
2691 | ||
ed9a39eb JM |
2692 | /* Find a single core_stratum target in the list of targets and return it. |
2693 | If for some reason there is more than one, return NULL. */ | |
2694 | ||
c906108c | 2695 | struct target_ops * |
fba45db2 | 2696 | find_core_target (void) |
c906108c SS |
2697 | { |
2698 | struct target_ops **t; | |
2699 | struct target_ops *runable = NULL; | |
2700 | int count; | |
c5aa993b | 2701 | |
c906108c | 2702 | count = 0; |
c5aa993b | 2703 | |
c906108c SS |
2704 | for (t = target_structs; t < target_structs + target_struct_size; |
2705 | ++t) | |
2706 | { | |
2707 | if ((*t)->to_stratum == core_stratum) | |
2708 | { | |
2709 | runable = *t; | |
2710 | ++count; | |
2711 | } | |
2712 | } | |
c5aa993b JM |
2713 | |
2714 | return (count == 1 ? runable : NULL); | |
c906108c | 2715 | } |
ed9a39eb JM |
2716 | |
2717 | /* | |
2718 | * Find the next target down the stack from the specified target. | |
2719 | */ | |
2720 | ||
2721 | struct target_ops * | |
fba45db2 | 2722 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 2723 | { |
258b763a | 2724 | return t->beneath; |
ed9a39eb JM |
2725 | } |
2726 | ||
c906108c SS |
2727 | \f |
2728 | /* The inferior process has died. Long live the inferior! */ | |
2729 | ||
2730 | void | |
fba45db2 | 2731 | generic_mourn_inferior (void) |
c906108c | 2732 | { |
7f9f62ba | 2733 | ptid_t ptid; |
c906108c | 2734 | |
7f9f62ba | 2735 | ptid = inferior_ptid; |
39f77062 | 2736 | inferior_ptid = null_ptid; |
7f9f62ba PA |
2737 | |
2738 | if (!ptid_equal (ptid, null_ptid)) | |
2739 | { | |
2740 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 2741 | exit_inferior (pid); |
7f9f62ba PA |
2742 | } |
2743 | ||
c906108c SS |
2744 | breakpoint_init_inferior (inf_exited); |
2745 | registers_changed (); | |
2746 | ||
c906108c SS |
2747 | reopen_exec_file (); |
2748 | reinit_frame_cache (); | |
2749 | ||
9a4105ab AC |
2750 | if (deprecated_detach_hook) |
2751 | deprecated_detach_hook (); | |
c906108c SS |
2752 | } |
2753 | \f | |
8807d78b | 2754 | /* Helper function for child_wait and the derivatives of child_wait. |
c906108c SS |
2755 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our |
2756 | translation of that in OURSTATUS. */ | |
2757 | void | |
fba45db2 | 2758 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c | 2759 | { |
c906108c SS |
2760 | if (WIFEXITED (hoststatus)) |
2761 | { | |
2762 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
2763 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
2764 | } | |
2765 | else if (!WIFSTOPPED (hoststatus)) | |
2766 | { | |
2767 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
2768 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
2769 | } | |
2770 | else | |
2771 | { | |
2772 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
2773 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
2774 | } | |
2775 | } | |
2776 | \f | |
fd0a2a6f MK |
2777 | /* Convert a normal process ID to a string. Returns the string in a |
2778 | static buffer. */ | |
c906108c SS |
2779 | |
2780 | char * | |
39f77062 | 2781 | normal_pid_to_str (ptid_t ptid) |
c906108c | 2782 | { |
fd0a2a6f | 2783 | static char buf[32]; |
c906108c | 2784 | |
5fff8fc0 | 2785 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
2786 | return buf; |
2787 | } | |
2788 | ||
2c0b251b | 2789 | static char * |
117de6a9 PA |
2790 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
2791 | { | |
2792 | return normal_pid_to_str (ptid); | |
2793 | } | |
2794 | ||
9b4eba8e HZ |
2795 | /* Error-catcher for target_find_memory_regions. */ |
2796 | static int | |
2797 | dummy_find_memory_regions (int (*ignore1) (), void *ignore2) | |
be4d1333 | 2798 | { |
9b4eba8e | 2799 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
2800 | return 0; |
2801 | } | |
2802 | ||
9b4eba8e HZ |
2803 | /* Error-catcher for target_make_corefile_notes. */ |
2804 | static char * | |
2805 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 2806 | { |
9b4eba8e | 2807 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
2808 | return NULL; |
2809 | } | |
2810 | ||
6b04bdb7 MS |
2811 | /* Error-catcher for target_get_bookmark. */ |
2812 | static gdb_byte * | |
2813 | dummy_get_bookmark (char *ignore1, int ignore2) | |
2814 | { | |
2815 | tcomplain (); | |
2816 | return NULL; | |
2817 | } | |
2818 | ||
2819 | /* Error-catcher for target_goto_bookmark. */ | |
2820 | static void | |
2821 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
2822 | { | |
2823 | tcomplain (); | |
2824 | } | |
2825 | ||
c906108c SS |
2826 | /* Set up the handful of non-empty slots needed by the dummy target |
2827 | vector. */ | |
2828 | ||
2829 | static void | |
fba45db2 | 2830 | init_dummy_target (void) |
c906108c SS |
2831 | { |
2832 | dummy_target.to_shortname = "None"; | |
2833 | dummy_target.to_longname = "None"; | |
2834 | dummy_target.to_doc = ""; | |
2835 | dummy_target.to_attach = find_default_attach; | |
136d6dae VP |
2836 | dummy_target.to_detach = |
2837 | (void (*)(struct target_ops *, char *, int))target_ignore; | |
c906108c | 2838 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
2839 | dummy_target.to_can_async_p = find_default_can_async_p; |
2840 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 2841 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
117de6a9 | 2842 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 2843 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
2844 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
2845 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
2846 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
2847 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
0b603eba | 2848 | dummy_target.to_xfer_partial = default_xfer_partial; |
c35b1492 PA |
2849 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
2850 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
2851 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
2852 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
2853 | dummy_target.to_has_execution = (int (*) (struct target_ops *)) return_zero; | |
7155de5a HZ |
2854 | dummy_target.to_stopped_by_watchpoint = return_zero; |
2855 | dummy_target.to_stopped_data_address = | |
2856 | (int (*) (struct target_ops *, CORE_ADDR *)) return_zero; | |
c906108c SS |
2857 | dummy_target.to_magic = OPS_MAGIC; |
2858 | } | |
c906108c | 2859 | \f |
c906108c | 2860 | static void |
fba45db2 | 2861 | debug_to_open (char *args, int from_tty) |
c906108c SS |
2862 | { |
2863 | debug_target.to_open (args, from_tty); | |
2864 | ||
96baa820 | 2865 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
2866 | } |
2867 | ||
f1c07ab0 AC |
2868 | void |
2869 | target_close (struct target_ops *targ, int quitting) | |
2870 | { | |
2871 | if (targ->to_xclose != NULL) | |
2872 | targ->to_xclose (targ, quitting); | |
2873 | else if (targ->to_close != NULL) | |
2874 | targ->to_close (quitting); | |
947b8855 PA |
2875 | |
2876 | if (targetdebug) | |
2877 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); | |
f1c07ab0 AC |
2878 | } |
2879 | ||
136d6dae VP |
2880 | void |
2881 | target_attach (char *args, int from_tty) | |
2882 | { | |
2883 | struct target_ops *t; | |
2884 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2885 | { | |
2886 | if (t->to_attach != NULL) | |
2887 | { | |
2888 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
2889 | if (targetdebug) |
2890 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
2891 | args, from_tty); | |
136d6dae VP |
2892 | return; |
2893 | } | |
2894 | } | |
2895 | ||
2896 | internal_error (__FILE__, __LINE__, | |
2897 | "could not find a target to attach"); | |
2898 | } | |
2899 | ||
28439f5e PA |
2900 | int |
2901 | target_thread_alive (ptid_t ptid) | |
c906108c | 2902 | { |
28439f5e PA |
2903 | struct target_ops *t; |
2904 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2905 | { | |
2906 | if (t->to_thread_alive != NULL) | |
2907 | { | |
2908 | int retval; | |
c906108c | 2909 | |
28439f5e PA |
2910 | retval = t->to_thread_alive (t, ptid); |
2911 | if (targetdebug) | |
2912 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
2913 | PIDGET (ptid), retval); | |
2914 | ||
2915 | return retval; | |
2916 | } | |
2917 | } | |
2918 | ||
2919 | return 0; | |
2920 | } | |
2921 | ||
2922 | void | |
2923 | target_find_new_threads (void) | |
2924 | { | |
2925 | struct target_ops *t; | |
2926 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2927 | { | |
2928 | if (t->to_find_new_threads != NULL) | |
2929 | { | |
2930 | t->to_find_new_threads (t); | |
2931 | if (targetdebug) | |
2932 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
2933 | ||
2934 | return; | |
2935 | } | |
2936 | } | |
c906108c SS |
2937 | } |
2938 | ||
c906108c | 2939 | static void |
28439f5e | 2940 | debug_to_post_attach (int pid) |
c906108c | 2941 | { |
28439f5e | 2942 | debug_target.to_post_attach (pid); |
c906108c | 2943 | |
28439f5e | 2944 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
2945 | } |
2946 | ||
f00150c9 DE |
2947 | /* Return a pretty printed form of target_waitstatus. |
2948 | Space for the result is malloc'd, caller must free. */ | |
c906108c | 2949 | |
f00150c9 DE |
2950 | char * |
2951 | target_waitstatus_to_string (const struct target_waitstatus *ws) | |
2952 | { | |
2953 | const char *kind_str = "status->kind = "; | |
c906108c | 2954 | |
f00150c9 | 2955 | switch (ws->kind) |
c906108c SS |
2956 | { |
2957 | case TARGET_WAITKIND_EXITED: | |
f00150c9 DE |
2958 | return xstrprintf ("%sexited, status = %d", |
2959 | kind_str, ws->value.integer); | |
c906108c | 2960 | case TARGET_WAITKIND_STOPPED: |
f00150c9 DE |
2961 | return xstrprintf ("%sstopped, signal = %s", |
2962 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 2963 | case TARGET_WAITKIND_SIGNALLED: |
f00150c9 DE |
2964 | return xstrprintf ("%ssignalled, signal = %s", |
2965 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 2966 | case TARGET_WAITKIND_LOADED: |
f00150c9 | 2967 | return xstrprintf ("%sloaded", kind_str); |
c906108c | 2968 | case TARGET_WAITKIND_FORKED: |
f00150c9 | 2969 | return xstrprintf ("%sforked", kind_str); |
c906108c | 2970 | case TARGET_WAITKIND_VFORKED: |
f00150c9 | 2971 | return xstrprintf ("%svforked", kind_str); |
c906108c | 2972 | case TARGET_WAITKIND_EXECD: |
f00150c9 DE |
2973 | return xstrprintf ("%sexecd", kind_str); |
2974 | case TARGET_WAITKIND_SYSCALL_ENTRY: | |
a96d9b2e | 2975 | return xstrprintf ("%sentered syscall", kind_str); |
f00150c9 | 2976 | case TARGET_WAITKIND_SYSCALL_RETURN: |
a96d9b2e | 2977 | return xstrprintf ("%sexited syscall", kind_str); |
c906108c | 2978 | case TARGET_WAITKIND_SPURIOUS: |
f00150c9 DE |
2979 | return xstrprintf ("%sspurious", kind_str); |
2980 | case TARGET_WAITKIND_IGNORE: | |
2981 | return xstrprintf ("%signore", kind_str); | |
2982 | case TARGET_WAITKIND_NO_HISTORY: | |
2983 | return xstrprintf ("%sno-history", kind_str); | |
c906108c | 2984 | default: |
f00150c9 | 2985 | return xstrprintf ("%sunknown???", kind_str); |
c906108c | 2986 | } |
f00150c9 DE |
2987 | } |
2988 | ||
bf0c5130 | 2989 | static void |
56be3814 UW |
2990 | debug_print_register (const char * func, |
2991 | struct regcache *regcache, int regno) | |
bf0c5130 | 2992 | { |
f8d29908 | 2993 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
bf0c5130 | 2994 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 2995 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
2996 | && gdbarch_register_name (gdbarch, regno) != NULL |
2997 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
2998 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
2999 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3000 | else |
3001 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3002 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3003 | { |
e17a4113 | 3004 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3005 | int i, size = register_size (gdbarch, regno); |
d9d9c31f | 3006 | unsigned char buf[MAX_REGISTER_SIZE]; |
0ff58721 | 3007 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3008 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3009 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3010 | { |
3011 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3012 | } | |
81c4a259 | 3013 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3014 | { |
e17a4113 | 3015 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
0b1553bc UW |
3016 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3017 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3018 | } |
3019 | } | |
3020 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3021 | } | |
3022 | ||
28439f5e PA |
3023 | void |
3024 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3025 | { |
28439f5e PA |
3026 | struct target_ops *t; |
3027 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3028 | { | |
3029 | if (t->to_fetch_registers != NULL) | |
3030 | { | |
3031 | t->to_fetch_registers (t, regcache, regno); | |
3032 | if (targetdebug) | |
3033 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3034 | return; | |
3035 | } | |
3036 | } | |
c906108c SS |
3037 | } |
3038 | ||
28439f5e PA |
3039 | void |
3040 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3041 | { |
28439f5e PA |
3042 | |
3043 | struct target_ops *t; | |
3044 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3045 | { | |
3046 | if (t->to_store_registers != NULL) | |
3047 | { | |
3048 | t->to_store_registers (t, regcache, regno); | |
3049 | if (targetdebug) | |
3050 | { | |
3051 | debug_print_register ("target_store_registers", regcache, regno); | |
3052 | } | |
3053 | return; | |
3054 | } | |
3055 | } | |
3056 | ||
3057 | noprocess (); | |
c906108c SS |
3058 | } |
3059 | ||
dc146f7c VP |
3060 | int |
3061 | target_core_of_thread (ptid_t ptid) | |
3062 | { | |
3063 | struct target_ops *t; | |
3064 | ||
3065 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3066 | { | |
3067 | if (t->to_core_of_thread != NULL) | |
3068 | { | |
3069 | int retval = t->to_core_of_thread (t, ptid); | |
3070 | if (targetdebug) | |
3071 | fprintf_unfiltered (gdb_stdlog, "target_core_of_thread (%d) = %d\n", | |
3072 | PIDGET (ptid), retval); | |
3073 | return retval; | |
3074 | } | |
3075 | } | |
3076 | ||
3077 | return -1; | |
3078 | } | |
3079 | ||
4a5e7a5b PA |
3080 | int |
3081 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3082 | { | |
3083 | struct target_ops *t; | |
3084 | ||
3085 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3086 | { | |
3087 | if (t->to_verify_memory != NULL) | |
3088 | { | |
3089 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
3090 | if (targetdebug) | |
3091 | fprintf_unfiltered (gdb_stdlog, "target_verify_memory (%s, %s) = %d\n", | |
3092 | paddress (target_gdbarch, memaddr), | |
3093 | pulongest (size), | |
3094 | retval); | |
3095 | return retval; | |
3096 | } | |
3097 | } | |
3098 | ||
3099 | tcomplain (); | |
3100 | } | |
3101 | ||
c906108c | 3102 | static void |
316f2060 | 3103 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 3104 | { |
316f2060 | 3105 | debug_target.to_prepare_to_store (regcache); |
c906108c | 3106 | |
96baa820 | 3107 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
3108 | } |
3109 | ||
3110 | static int | |
961cb7b5 | 3111 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
3112 | int write, struct mem_attrib *attrib, |
3113 | struct target_ops *target) | |
c906108c SS |
3114 | { |
3115 | int retval; | |
3116 | ||
c8e73a31 AC |
3117 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
3118 | attrib, target); | |
c906108c | 3119 | |
96baa820 | 3120 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 3121 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
5af949e3 UW |
3122 | paddress (target_gdbarch, memaddr), len, |
3123 | write ? "write" : "read", retval); | |
c906108c | 3124 | |
c906108c SS |
3125 | if (retval > 0) |
3126 | { | |
3127 | int i; | |
3128 | ||
96baa820 | 3129 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
3130 | for (i = 0; i < retval; i++) |
3131 | { | |
53b71562 | 3132 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
3133 | { |
3134 | if (targetdebug < 2 && i > 0) | |
3135 | { | |
3136 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
3137 | break; | |
3138 | } | |
3139 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3140 | } | |
2bc416ba | 3141 | |
96baa820 | 3142 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
3143 | } |
3144 | } | |
3145 | ||
96baa820 | 3146 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
3147 | |
3148 | return retval; | |
3149 | } | |
3150 | ||
3151 | static void | |
fba45db2 | 3152 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
3153 | { |
3154 | debug_target.to_files_info (target); | |
3155 | ||
96baa820 | 3156 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
3157 | } |
3158 | ||
3159 | static int | |
a6d9a66e UW |
3160 | debug_to_insert_breakpoint (struct gdbarch *gdbarch, |
3161 | struct bp_target_info *bp_tgt) | |
c906108c SS |
3162 | { |
3163 | int retval; | |
3164 | ||
a6d9a66e | 3165 | retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt); |
c906108c | 3166 | |
96baa820 | 3167 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 3168 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 3169 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 3170 | (unsigned long) retval); |
c906108c SS |
3171 | return retval; |
3172 | } | |
3173 | ||
3174 | static int | |
a6d9a66e UW |
3175 | debug_to_remove_breakpoint (struct gdbarch *gdbarch, |
3176 | struct bp_target_info *bp_tgt) | |
c906108c SS |
3177 | { |
3178 | int retval; | |
3179 | ||
a6d9a66e | 3180 | retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt); |
c906108c | 3181 | |
96baa820 | 3182 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 3183 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 3184 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 3185 | (unsigned long) retval); |
c906108c SS |
3186 | return retval; |
3187 | } | |
3188 | ||
ccaa32c7 GS |
3189 | static int |
3190 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
3191 | { | |
3192 | int retval; | |
3193 | ||
3194 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
3195 | ||
3196 | fprintf_unfiltered (gdb_stdlog, | |
3197 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
3198 | (unsigned long) type, | |
3199 | (unsigned long) cnt, | |
3200 | (unsigned long) from_tty, | |
3201 | (unsigned long) retval); | |
3202 | return retval; | |
3203 | } | |
3204 | ||
e0d24f8d WZ |
3205 | static int |
3206 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3207 | { | |
3208 | CORE_ADDR retval; | |
3209 | ||
3210 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
3211 | ||
3212 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 3213 | "target_region_ok_for_hw_watchpoint (%ld, %ld) = 0x%lx\n", |
e0d24f8d WZ |
3214 | (unsigned long) addr, |
3215 | (unsigned long) len, | |
3216 | (unsigned long) retval); | |
3217 | return retval; | |
3218 | } | |
3219 | ||
ccaa32c7 GS |
3220 | static int |
3221 | debug_to_stopped_by_watchpoint (void) | |
3222 | { | |
3223 | int retval; | |
3224 | ||
3225 | retval = debug_target.to_stopped_by_watchpoint (); | |
3226 | ||
3227 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 3228 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
3229 | (unsigned long) retval); |
3230 | return retval; | |
3231 | } | |
3232 | ||
4aa7a7f5 JJ |
3233 | static int |
3234 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 3235 | { |
4aa7a7f5 | 3236 | int retval; |
ccaa32c7 | 3237 | |
4aa7a7f5 | 3238 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
3239 | |
3240 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
3241 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
3242 | (unsigned long)*addr, | |
3243 | (unsigned long)retval); | |
ccaa32c7 GS |
3244 | return retval; |
3245 | } | |
3246 | ||
5009afc5 AS |
3247 | static int |
3248 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
3249 | CORE_ADDR addr, | |
3250 | CORE_ADDR start, int length) | |
3251 | { | |
3252 | int retval; | |
3253 | ||
3254 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
3255 | start, length); | |
3256 | ||
3257 | fprintf_filtered (gdb_stdlog, | |
3258 | "target_watchpoint_addr_within_range (0x%lx, 0x%lx, %d) = %d\n", | |
3259 | (unsigned long) addr, (unsigned long) start, length, | |
3260 | retval); | |
3261 | return retval; | |
3262 | } | |
3263 | ||
ccaa32c7 | 3264 | static int |
a6d9a66e UW |
3265 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
3266 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
3267 | { |
3268 | int retval; | |
3269 | ||
a6d9a66e | 3270 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
3271 | |
3272 | fprintf_unfiltered (gdb_stdlog, | |
3273 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 3274 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
3275 | (unsigned long) retval); |
3276 | return retval; | |
3277 | } | |
3278 | ||
3279 | static int | |
a6d9a66e UW |
3280 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
3281 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
3282 | { |
3283 | int retval; | |
3284 | ||
a6d9a66e | 3285 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
3286 | |
3287 | fprintf_unfiltered (gdb_stdlog, | |
3288 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 3289 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
3290 | (unsigned long) retval); |
3291 | return retval; | |
3292 | } | |
3293 | ||
3294 | static int | |
3295 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
3296 | { | |
3297 | int retval; | |
3298 | ||
3299 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
3300 | ||
3301 | fprintf_unfiltered (gdb_stdlog, | |
3302 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
3303 | (unsigned long) addr, len, type, (unsigned long) retval); | |
3304 | return retval; | |
3305 | } | |
3306 | ||
3307 | static int | |
3308 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
3309 | { | |
3310 | int retval; | |
3311 | ||
ecde4882 | 3312 | retval = debug_target.to_remove_watchpoint (addr, len, type); |
ccaa32c7 GS |
3313 | |
3314 | fprintf_unfiltered (gdb_stdlog, | |
ecde4882 | 3315 | "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n", |
ccaa32c7 GS |
3316 | (unsigned long) addr, len, type, (unsigned long) retval); |
3317 | return retval; | |
3318 | } | |
3319 | ||
c906108c | 3320 | static void |
fba45db2 | 3321 | debug_to_terminal_init (void) |
c906108c SS |
3322 | { |
3323 | debug_target.to_terminal_init (); | |
3324 | ||
96baa820 | 3325 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
3326 | } |
3327 | ||
3328 | static void | |
fba45db2 | 3329 | debug_to_terminal_inferior (void) |
c906108c SS |
3330 | { |
3331 | debug_target.to_terminal_inferior (); | |
3332 | ||
96baa820 | 3333 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
3334 | } |
3335 | ||
3336 | static void | |
fba45db2 | 3337 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
3338 | { |
3339 | debug_target.to_terminal_ours_for_output (); | |
3340 | ||
96baa820 | 3341 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
3342 | } |
3343 | ||
3344 | static void | |
fba45db2 | 3345 | debug_to_terminal_ours (void) |
c906108c SS |
3346 | { |
3347 | debug_target.to_terminal_ours (); | |
3348 | ||
96baa820 | 3349 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
3350 | } |
3351 | ||
a790ad35 SC |
3352 | static void |
3353 | debug_to_terminal_save_ours (void) | |
3354 | { | |
3355 | debug_target.to_terminal_save_ours (); | |
3356 | ||
3357 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
3358 | } | |
3359 | ||
c906108c | 3360 | static void |
fba45db2 | 3361 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
3362 | { |
3363 | debug_target.to_terminal_info (arg, from_tty); | |
3364 | ||
96baa820 | 3365 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
3366 | from_tty); |
3367 | } | |
3368 | ||
c906108c | 3369 | static void |
fba45db2 | 3370 | debug_to_load (char *args, int from_tty) |
c906108c SS |
3371 | { |
3372 | debug_target.to_load (args, from_tty); | |
3373 | ||
96baa820 | 3374 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
3375 | } |
3376 | ||
3377 | static int | |
fba45db2 | 3378 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
3379 | { |
3380 | int retval; | |
3381 | ||
3382 | retval = debug_target.to_lookup_symbol (name, addrp); | |
3383 | ||
96baa820 | 3384 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
3385 | |
3386 | return retval; | |
3387 | } | |
3388 | ||
c906108c | 3389 | static void |
39f77062 | 3390 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 3391 | { |
39f77062 | 3392 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 3393 | |
96baa820 | 3394 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 3395 | PIDGET (ptid)); |
c906108c SS |
3396 | } |
3397 | ||
3398 | static void | |
fba45db2 | 3399 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
3400 | { |
3401 | debug_target.to_acknowledge_created_inferior (pid); | |
3402 | ||
96baa820 | 3403 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
3404 | pid); |
3405 | } | |
3406 | ||
fa113d1a | 3407 | static void |
fba45db2 | 3408 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 3409 | { |
fa113d1a | 3410 | debug_target.to_insert_fork_catchpoint (pid); |
c906108c | 3411 | |
fa113d1a AC |
3412 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n", |
3413 | pid); | |
c906108c SS |
3414 | } |
3415 | ||
3416 | static int | |
fba45db2 | 3417 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 3418 | { |
c5aa993b | 3419 | int retval; |
c906108c SS |
3420 | |
3421 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
3422 | ||
96baa820 | 3423 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 3424 | pid, retval); |
c906108c SS |
3425 | |
3426 | return retval; | |
3427 | } | |
3428 | ||
fa113d1a | 3429 | static void |
fba45db2 | 3430 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 3431 | { |
fa113d1a | 3432 | debug_target.to_insert_vfork_catchpoint (pid); |
c906108c | 3433 | |
fa113d1a AC |
3434 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n", |
3435 | pid); | |
c906108c SS |
3436 | } |
3437 | ||
3438 | static int | |
fba45db2 | 3439 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 3440 | { |
c5aa993b | 3441 | int retval; |
c906108c SS |
3442 | |
3443 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
3444 | ||
96baa820 | 3445 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 3446 | pid, retval); |
c906108c SS |
3447 | |
3448 | return retval; | |
3449 | } | |
3450 | ||
fa113d1a | 3451 | static void |
fba45db2 | 3452 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 3453 | { |
fa113d1a | 3454 | debug_target.to_insert_exec_catchpoint (pid); |
c906108c | 3455 | |
fa113d1a AC |
3456 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n", |
3457 | pid); | |
c906108c SS |
3458 | } |
3459 | ||
3460 | static int | |
fba45db2 | 3461 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 3462 | { |
c5aa993b | 3463 | int retval; |
c906108c SS |
3464 | |
3465 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
3466 | ||
96baa820 | 3467 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 3468 | pid, retval); |
c906108c SS |
3469 | |
3470 | return retval; | |
3471 | } | |
3472 | ||
c906108c | 3473 | static int |
fba45db2 | 3474 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 3475 | { |
c5aa993b | 3476 | int has_exited; |
c906108c SS |
3477 | |
3478 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
3479 | ||
96baa820 | 3480 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 3481 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
3482 | |
3483 | return has_exited; | |
3484 | } | |
3485 | ||
c906108c | 3486 | static int |
fba45db2 | 3487 | debug_to_can_run (void) |
c906108c SS |
3488 | { |
3489 | int retval; | |
3490 | ||
3491 | retval = debug_target.to_can_run (); | |
3492 | ||
96baa820 | 3493 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
3494 | |
3495 | return retval; | |
3496 | } | |
3497 | ||
3498 | static void | |
39f77062 | 3499 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 3500 | { |
39f77062 | 3501 | debug_target.to_notice_signals (ptid); |
c906108c | 3502 | |
39f77062 KB |
3503 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
3504 | PIDGET (ptid)); | |
c906108c SS |
3505 | } |
3506 | ||
c2250ad1 UW |
3507 | static struct gdbarch * |
3508 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3509 | { | |
3510 | struct gdbarch *retval; | |
3511 | ||
3512 | retval = debug_target.to_thread_architecture (ops, ptid); | |
3513 | ||
67e5d36c PM |
3514 | fprintf_unfiltered (gdb_stdlog, "target_thread_architecture (%s) = %s [%s]\n", |
3515 | target_pid_to_str (ptid), host_address_to_string (retval), | |
c2250ad1 UW |
3516 | gdbarch_bfd_arch_info (retval)->printable_name); |
3517 | return retval; | |
3518 | } | |
3519 | ||
c906108c | 3520 | static void |
94cc34af | 3521 | debug_to_stop (ptid_t ptid) |
c906108c | 3522 | { |
94cc34af | 3523 | debug_target.to_stop (ptid); |
c906108c | 3524 | |
94cc34af PA |
3525 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
3526 | target_pid_to_str (ptid)); | |
c906108c SS |
3527 | } |
3528 | ||
96baa820 JM |
3529 | static void |
3530 | debug_to_rcmd (char *command, | |
d9fcf2fb | 3531 | struct ui_file *outbuf) |
96baa820 JM |
3532 | { |
3533 | debug_target.to_rcmd (command, outbuf); | |
3534 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
3535 | } | |
3536 | ||
c906108c | 3537 | static char * |
fba45db2 | 3538 | debug_to_pid_to_exec_file (int pid) |
c906108c | 3539 | { |
c5aa993b | 3540 | char *exec_file; |
c906108c SS |
3541 | |
3542 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
3543 | ||
96baa820 | 3544 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 3545 | pid, exec_file); |
c906108c SS |
3546 | |
3547 | return exec_file; | |
3548 | } | |
3549 | ||
c906108c | 3550 | static void |
fba45db2 | 3551 | setup_target_debug (void) |
c906108c SS |
3552 | { |
3553 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
3554 | ||
3555 | current_target.to_open = debug_to_open; | |
c906108c | 3556 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 3557 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 3558 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
3559 | current_target.to_files_info = debug_to_files_info; |
3560 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
3561 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
3562 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
3563 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
3564 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
3565 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
3566 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
3567 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
3568 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
5009afc5 | 3569 | current_target.to_watchpoint_addr_within_range = debug_to_watchpoint_addr_within_range; |
e0d24f8d | 3570 | current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint; |
c906108c SS |
3571 | current_target.to_terminal_init = debug_to_terminal_init; |
3572 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3573 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
3574 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 3575 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 3576 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c SS |
3577 | current_target.to_load = debug_to_load; |
3578 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
c906108c SS |
3579 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
3580 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
3581 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
3582 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
3583 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
3584 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
3585 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
3586 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 3587 | current_target.to_has_exited = debug_to_has_exited; |
c906108c SS |
3588 | current_target.to_can_run = debug_to_can_run; |
3589 | current_target.to_notice_signals = debug_to_notice_signals; | |
c906108c | 3590 | current_target.to_stop = debug_to_stop; |
96baa820 | 3591 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 3592 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 3593 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 3594 | } |
c906108c | 3595 | \f |
c5aa993b JM |
3596 | |
3597 | static char targ_desc[] = | |
3598 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
3599 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
3600 | core-file, and process, if any), as well as the symbol file name."; | |
3601 | ||
96baa820 JM |
3602 | static void |
3603 | do_monitor_command (char *cmd, | |
3604 | int from_tty) | |
3605 | { | |
2b5fe715 AC |
3606 | if ((current_target.to_rcmd |
3607 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 3608 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
3609 | && (debug_target.to_rcmd |
3610 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 3611 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
3612 | target_rcmd (cmd, gdb_stdtarg); |
3613 | } | |
3614 | ||
87680a14 JB |
3615 | /* Print the name of each layers of our target stack. */ |
3616 | ||
3617 | static void | |
3618 | maintenance_print_target_stack (char *cmd, int from_tty) | |
3619 | { | |
3620 | struct target_ops *t; | |
3621 | ||
3622 | printf_filtered (_("The current target stack is:\n")); | |
3623 | ||
3624 | for (t = target_stack; t != NULL; t = t->beneath) | |
3625 | { | |
3626 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
3627 | } | |
3628 | } | |
3629 | ||
c6ebd6cf VP |
3630 | /* Controls if async mode is permitted. */ |
3631 | int target_async_permitted = 0; | |
3632 | ||
3633 | /* The set command writes to this variable. If the inferior is | |
3634 | executing, linux_nat_async_permitted is *not* updated. */ | |
3635 | static int target_async_permitted_1 = 0; | |
3636 | ||
3637 | static void | |
3638 | set_maintenance_target_async_permitted (char *args, int from_tty, | |
3639 | struct cmd_list_element *c) | |
3640 | { | |
c35b1492 | 3641 | if (have_live_inferiors ()) |
c6ebd6cf VP |
3642 | { |
3643 | target_async_permitted_1 = target_async_permitted; | |
3644 | error (_("Cannot change this setting while the inferior is running.")); | |
3645 | } | |
3646 | ||
3647 | target_async_permitted = target_async_permitted_1; | |
3648 | } | |
3649 | ||
3650 | static void | |
3651 | show_maintenance_target_async_permitted (struct ui_file *file, int from_tty, | |
3652 | struct cmd_list_element *c, | |
3653 | const char *value) | |
3654 | { | |
3655 | fprintf_filtered (file, _("\ | |
3656 | Controlling the inferior in asynchronous mode is %s.\n"), value); | |
3657 | } | |
3658 | ||
c906108c | 3659 | void |
fba45db2 | 3660 | initialize_targets (void) |
c906108c SS |
3661 | { |
3662 | init_dummy_target (); | |
3663 | push_target (&dummy_target); | |
3664 | ||
3665 | add_info ("target", target_info, targ_desc); | |
3666 | add_info ("files", target_info, targ_desc); | |
3667 | ||
85c07804 AC |
3668 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
3669 | Set target debugging."), _("\ | |
3670 | Show target debugging."), _("\ | |
333dabeb DJ |
3671 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
3672 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
3673 | command."), |
3674 | NULL, | |
920d2a44 | 3675 | show_targetdebug, |
85c07804 | 3676 | &setdebuglist, &showdebuglist); |
3a11626d | 3677 | |
2bc416ba | 3678 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
3679 | &trust_readonly, _("\ |
3680 | Set mode for reading from readonly sections."), _("\ | |
3681 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
3682 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
3683 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 3684 | result in significant performance improvement for remote targets."), |
2c5b56ce | 3685 | NULL, |
920d2a44 | 3686 | show_trust_readonly, |
e707bbc2 | 3687 | &setlist, &showlist); |
96baa820 JM |
3688 | |
3689 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 3690 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 3691 | |
87680a14 JB |
3692 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
3693 | _("Print the name of each layer of the internal target stack."), | |
3694 | &maintenanceprintlist); | |
3695 | ||
c6ebd6cf VP |
3696 | add_setshow_boolean_cmd ("target-async", no_class, |
3697 | &target_async_permitted_1, _("\ | |
3698 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
3699 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
3700 | Tells gdb whether to control the inferior in asynchronous mode."), | |
3701 | set_maintenance_target_async_permitted, | |
3702 | show_maintenance_target_async_permitted, | |
3703 | &setlist, | |
3704 | &showlist); | |
3705 | ||
4e5d721f | 3706 | add_setshow_boolean_cmd ("stack-cache", class_support, |
9cf1b572 | 3707 | &stack_cache_enabled_p_1, _("\ |
4e5d721f DE |
3708 | Set cache use for stack access."), _("\ |
3709 | Show cache use for stack access."), _("\ | |
3710 | When on, use the data cache for all stack access, regardless of any\n\ | |
3711 | configured memory regions. This improves remote performance significantly.\n\ | |
3712 | By default, caching for stack access is on."), | |
3713 | set_stack_cache_enabled_p, | |
3714 | show_stack_cache_enabled_p, | |
3715 | &setlist, &showlist); | |
3716 | ||
8add0441 | 3717 | target_dcache = dcache_init (); |
c906108c | 3718 | } |