Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
0b302171 | 3 | Copyright (C) 1990-2012 Free Software Foundation, Inc. |
7998dfc3 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <errno.h> | |
c906108c SS |
24 | #include "gdb_string.h" |
25 | #include "target.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "symtab.h" | |
28 | #include "inferior.h" | |
29 | #include "bfd.h" | |
30 | #include "symfile.h" | |
31 | #include "objfiles.h" | |
03f2053f | 32 | #include "gdb_wait.h" |
4930751a | 33 | #include "dcache.h" |
c906108c | 34 | #include <signal.h> |
4e052eda | 35 | #include "regcache.h" |
0088c768 | 36 | #include "gdb_assert.h" |
b6591e8b | 37 | #include "gdbcore.h" |
9e35dae4 | 38 | #include "exceptions.h" |
424163ea | 39 | #include "target-descriptions.h" |
e1ac3328 | 40 | #include "gdbthread.h" |
b9db4ced | 41 | #include "solib.h" |
07b82ea5 | 42 | #include "exec.h" |
edb3359d | 43 | #include "inline-frame.h" |
2f4d8875 | 44 | #include "tracepoint.h" |
7313baad | 45 | #include "gdb/fileio.h" |
8ffcbaaf | 46 | #include "agent.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
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 | ||
c25c4a8b | 57 | static void tcomplain (void) ATTRIBUTE_NORETURN; |
c906108c | 58 | |
a14ed312 | 59 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 60 | |
a14ed312 | 61 | static int return_zero (void); |
c906108c | 62 | |
a14ed312 | 63 | static int return_one (void); |
c906108c | 64 | |
ccaa32c7 GS |
65 | static int return_minus_one (void); |
66 | ||
a14ed312 | 67 | void target_ignore (void); |
c906108c | 68 | |
a14ed312 | 69 | static void target_command (char *, int); |
c906108c | 70 | |
a14ed312 | 71 | static struct target_ops *find_default_run_target (char *); |
c906108c | 72 | |
4b8a223f | 73 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 74 | enum target_object object, |
1b0ba102 AC |
75 | const char *annex, gdb_byte *readbuf, |
76 | const gdb_byte *writebuf, | |
8aa91c1e | 77 | ULONGEST offset, LONGEST len); |
0088c768 | 78 | |
cf7a04e8 DJ |
79 | static LONGEST current_xfer_partial (struct target_ops *ops, |
80 | enum target_object object, | |
81 | const char *annex, gdb_byte *readbuf, | |
82 | const gdb_byte *writebuf, | |
83 | ULONGEST offset, LONGEST len); | |
c906108c | 84 | |
cf7a04e8 DJ |
85 | static LONGEST target_xfer_partial (struct target_ops *ops, |
86 | enum target_object object, | |
87 | const char *annex, | |
88 | void *readbuf, const void *writebuf, | |
89 | ULONGEST offset, LONGEST len); | |
c906108c | 90 | |
c2250ad1 UW |
91 | static struct gdbarch *default_thread_architecture (struct target_ops *ops, |
92 | ptid_t ptid); | |
93 | ||
a14ed312 | 94 | static void init_dummy_target (void); |
c906108c | 95 | |
aa869812 AC |
96 | static struct target_ops debug_target; |
97 | ||
a14ed312 | 98 | static void debug_to_open (char *, int); |
c906108c | 99 | |
316f2060 | 100 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 101 | |
a14ed312 | 102 | static void debug_to_files_info (struct target_ops *); |
c906108c | 103 | |
a6d9a66e UW |
104 | static int debug_to_insert_breakpoint (struct gdbarch *, |
105 | struct bp_target_info *); | |
c906108c | 106 | |
a6d9a66e UW |
107 | static int debug_to_remove_breakpoint (struct gdbarch *, |
108 | struct bp_target_info *); | |
c906108c | 109 | |
ccaa32c7 GS |
110 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
111 | ||
a6d9a66e UW |
112 | static int debug_to_insert_hw_breakpoint (struct gdbarch *, |
113 | struct bp_target_info *); | |
ccaa32c7 | 114 | |
a6d9a66e UW |
115 | static int debug_to_remove_hw_breakpoint (struct gdbarch *, |
116 | struct bp_target_info *); | |
ccaa32c7 | 117 | |
0cf6dd15 TJB |
118 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int, |
119 | struct expression *); | |
ccaa32c7 | 120 | |
0cf6dd15 TJB |
121 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int, |
122 | struct expression *); | |
ccaa32c7 GS |
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 | ||
0cf6dd15 TJB |
133 | static int debug_to_can_accel_watchpoint_condition (CORE_ADDR, int, int, |
134 | struct expression *); | |
135 | ||
a14ed312 | 136 | static void debug_to_terminal_init (void); |
c906108c | 137 | |
a14ed312 | 138 | static void debug_to_terminal_inferior (void); |
c906108c | 139 | |
a14ed312 | 140 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 141 | |
a790ad35 SC |
142 | static void debug_to_terminal_save_ours (void); |
143 | ||
a14ed312 | 144 | static void debug_to_terminal_ours (void); |
c906108c | 145 | |
a14ed312 | 146 | static void debug_to_terminal_info (char *, int); |
c906108c | 147 | |
a14ed312 | 148 | static void debug_to_load (char *, int); |
c906108c | 149 | |
a14ed312 | 150 | static int debug_to_can_run (void); |
c906108c | 151 | |
94cc34af | 152 | static void debug_to_stop (ptid_t); |
c906108c | 153 | |
c906108c | 154 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 155 | array; the current index into the array; the allocated size of the |
c906108c SS |
156 | array. */ |
157 | struct target_ops **target_structs; | |
158 | unsigned target_struct_size; | |
159 | unsigned target_struct_index; | |
160 | unsigned target_struct_allocsize; | |
161 | #define DEFAULT_ALLOCSIZE 10 | |
162 | ||
163 | /* The initial current target, so that there is always a semi-valid | |
164 | current target. */ | |
165 | ||
166 | static struct target_ops dummy_target; | |
167 | ||
168 | /* Top of target stack. */ | |
169 | ||
258b763a | 170 | static struct target_ops *target_stack; |
c906108c SS |
171 | |
172 | /* The target structure we are currently using to talk to a process | |
173 | or file or whatever "inferior" we have. */ | |
174 | ||
175 | struct target_ops current_target; | |
176 | ||
177 | /* Command list for target. */ | |
178 | ||
179 | static struct cmd_list_element *targetlist = NULL; | |
180 | ||
cf7a04e8 DJ |
181 | /* Nonzero if we should trust readonly sections from the |
182 | executable when reading memory. */ | |
183 | ||
184 | static int trust_readonly = 0; | |
185 | ||
8defab1a DJ |
186 | /* Nonzero if we should show true memory content including |
187 | memory breakpoint inserted by gdb. */ | |
188 | ||
189 | static int show_memory_breakpoints = 0; | |
190 | ||
d914c394 SS |
191 | /* These globals control whether GDB attempts to perform these |
192 | operations; they are useful for targets that need to prevent | |
193 | inadvertant disruption, such as in non-stop mode. */ | |
194 | ||
195 | int may_write_registers = 1; | |
196 | ||
197 | int may_write_memory = 1; | |
198 | ||
199 | int may_insert_breakpoints = 1; | |
200 | ||
201 | int may_insert_tracepoints = 1; | |
202 | ||
203 | int may_insert_fast_tracepoints = 1; | |
204 | ||
205 | int may_stop = 1; | |
206 | ||
c906108c SS |
207 | /* Non-zero if we want to see trace of target level stuff. */ |
208 | ||
209 | static int targetdebug = 0; | |
920d2a44 AC |
210 | static void |
211 | show_targetdebug (struct ui_file *file, int from_tty, | |
212 | struct cmd_list_element *c, const char *value) | |
213 | { | |
214 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
215 | } | |
c906108c | 216 | |
a14ed312 | 217 | static void setup_target_debug (void); |
c906108c | 218 | |
4e5d721f DE |
219 | /* The option sets this. */ |
220 | static int stack_cache_enabled_p_1 = 1; | |
221 | /* And set_stack_cache_enabled_p updates this. | |
222 | The reason for the separation is so that we don't flush the cache for | |
223 | on->on transitions. */ | |
224 | static int stack_cache_enabled_p = 1; | |
225 | ||
226 | /* This is called *after* the stack-cache has been set. | |
227 | Flush the cache for off->on and on->off transitions. | |
228 | There's no real need to flush the cache for on->off transitions, | |
229 | except cleanliness. */ | |
230 | ||
231 | static void | |
232 | set_stack_cache_enabled_p (char *args, int from_tty, | |
233 | struct cmd_list_element *c) | |
234 | { | |
235 | if (stack_cache_enabled_p != stack_cache_enabled_p_1) | |
236 | target_dcache_invalidate (); | |
237 | ||
238 | stack_cache_enabled_p = stack_cache_enabled_p_1; | |
239 | } | |
240 | ||
241 | static void | |
242 | show_stack_cache_enabled_p (struct ui_file *file, int from_tty, | |
243 | struct cmd_list_element *c, const char *value) | |
244 | { | |
245 | fprintf_filtered (file, _("Cache use for stack accesses is %s.\n"), value); | |
246 | } | |
247 | ||
248 | /* Cache of memory operations, to speed up remote access. */ | |
249 | static DCACHE *target_dcache; | |
250 | ||
251 | /* Invalidate the target dcache. */ | |
252 | ||
253 | void | |
254 | target_dcache_invalidate (void) | |
255 | { | |
256 | dcache_invalidate (target_dcache); | |
257 | } | |
4930751a | 258 | |
c906108c SS |
259 | /* The user just typed 'target' without the name of a target. */ |
260 | ||
c906108c | 261 | static void |
fba45db2 | 262 | target_command (char *arg, int from_tty) |
c906108c SS |
263 | { |
264 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
265 | gdb_stdout); | |
266 | } | |
267 | ||
c35b1492 PA |
268 | /* Default target_has_* methods for process_stratum targets. */ |
269 | ||
270 | int | |
271 | default_child_has_all_memory (struct target_ops *ops) | |
272 | { | |
273 | /* If no inferior selected, then we can't read memory here. */ | |
274 | if (ptid_equal (inferior_ptid, null_ptid)) | |
275 | return 0; | |
276 | ||
277 | return 1; | |
278 | } | |
279 | ||
280 | int | |
281 | default_child_has_memory (struct target_ops *ops) | |
282 | { | |
283 | /* If no inferior selected, then we can't read memory here. */ | |
284 | if (ptid_equal (inferior_ptid, null_ptid)) | |
285 | return 0; | |
286 | ||
287 | return 1; | |
288 | } | |
289 | ||
290 | int | |
291 | default_child_has_stack (struct target_ops *ops) | |
292 | { | |
293 | /* If no inferior selected, there's no stack. */ | |
294 | if (ptid_equal (inferior_ptid, null_ptid)) | |
295 | return 0; | |
296 | ||
297 | return 1; | |
298 | } | |
299 | ||
300 | int | |
301 | default_child_has_registers (struct target_ops *ops) | |
302 | { | |
303 | /* Can't read registers from no inferior. */ | |
304 | if (ptid_equal (inferior_ptid, null_ptid)) | |
305 | return 0; | |
306 | ||
307 | return 1; | |
308 | } | |
309 | ||
310 | int | |
aeaec162 | 311 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
312 | { |
313 | /* If there's no thread selected, then we can't make it run through | |
314 | hoops. */ | |
aeaec162 | 315 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
316 | return 0; |
317 | ||
318 | return 1; | |
319 | } | |
320 | ||
321 | ||
322 | int | |
323 | target_has_all_memory_1 (void) | |
324 | { | |
325 | struct target_ops *t; | |
326 | ||
327 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
328 | if (t->to_has_all_memory (t)) | |
329 | return 1; | |
330 | ||
331 | return 0; | |
332 | } | |
333 | ||
334 | int | |
335 | target_has_memory_1 (void) | |
336 | { | |
337 | struct target_ops *t; | |
338 | ||
339 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
340 | if (t->to_has_memory (t)) | |
341 | return 1; | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | int | |
347 | target_has_stack_1 (void) | |
348 | { | |
349 | struct target_ops *t; | |
350 | ||
351 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
352 | if (t->to_has_stack (t)) | |
353 | return 1; | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | int | |
359 | target_has_registers_1 (void) | |
360 | { | |
361 | struct target_ops *t; | |
362 | ||
363 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
364 | if (t->to_has_registers (t)) | |
365 | return 1; | |
366 | ||
367 | return 0; | |
368 | } | |
369 | ||
370 | int | |
aeaec162 | 371 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
372 | { |
373 | struct target_ops *t; | |
374 | ||
375 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 376 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
377 | return 1; |
378 | ||
379 | return 0; | |
380 | } | |
381 | ||
aeaec162 TT |
382 | int |
383 | target_has_execution_current (void) | |
384 | { | |
385 | return target_has_execution_1 (inferior_ptid); | |
386 | } | |
387 | ||
c906108c SS |
388 | /* Add a possible target architecture to the list. */ |
389 | ||
390 | void | |
fba45db2 | 391 | add_target (struct target_ops *t) |
c906108c | 392 | { |
0088c768 | 393 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
394 | if (t->to_xfer_partial == NULL) |
395 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 396 | |
c35b1492 PA |
397 | if (t->to_has_all_memory == NULL) |
398 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
399 | ||
400 | if (t->to_has_memory == NULL) | |
401 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
402 | ||
403 | if (t->to_has_stack == NULL) | |
404 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
405 | ||
406 | if (t->to_has_registers == NULL) | |
407 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
408 | ||
409 | if (t->to_has_execution == NULL) | |
aeaec162 | 410 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
c35b1492 | 411 | |
c906108c SS |
412 | if (!target_structs) |
413 | { | |
414 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
415 | target_structs = (struct target_ops **) xmalloc | |
416 | (target_struct_allocsize * sizeof (*target_structs)); | |
417 | } | |
418 | if (target_struct_size >= target_struct_allocsize) | |
419 | { | |
420 | target_struct_allocsize *= 2; | |
421 | target_structs = (struct target_ops **) | |
c5aa993b JM |
422 | xrealloc ((char *) target_structs, |
423 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
424 | } |
425 | target_structs[target_struct_size++] = t; | |
c906108c SS |
426 | |
427 | if (targetlist == NULL) | |
1bedd215 AC |
428 | add_prefix_cmd ("target", class_run, target_command, _("\ |
429 | Connect to a target machine or process.\n\ | |
c906108c SS |
430 | The first argument is the type or protocol of the target machine.\n\ |
431 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
432 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 433 | `help target ' followed by the protocol name."), |
c906108c SS |
434 | &targetlist, "target ", 0, &cmdlist); |
435 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
436 | } | |
437 | ||
438 | /* Stub functions */ | |
439 | ||
440 | void | |
fba45db2 | 441 | target_ignore (void) |
c906108c SS |
442 | { |
443 | } | |
444 | ||
7d85a9c0 JB |
445 | void |
446 | target_kill (void) | |
447 | { | |
448 | struct target_ops *t; | |
449 | ||
450 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
451 | if (t->to_kill != NULL) | |
452 | { | |
453 | if (targetdebug) | |
454 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
455 | ||
456 | t->to_kill (t); | |
457 | return; | |
458 | } | |
459 | ||
460 | noprocess (); | |
461 | } | |
462 | ||
11cf8741 JM |
463 | void |
464 | target_load (char *arg, int from_tty) | |
465 | { | |
4e5d721f | 466 | target_dcache_invalidate (); |
11cf8741 JM |
467 | (*current_target.to_load) (arg, from_tty); |
468 | } | |
469 | ||
947b8855 PA |
470 | void |
471 | target_create_inferior (char *exec_file, char *args, | |
472 | char **env, int from_tty) | |
136d6dae VP |
473 | { |
474 | struct target_ops *t; | |
5d502164 | 475 | |
136d6dae VP |
476 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
477 | { | |
478 | if (t->to_create_inferior != NULL) | |
479 | { | |
480 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
481 | if (targetdebug) |
482 | fprintf_unfiltered (gdb_stdlog, | |
483 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
484 | exec_file, args, from_tty); | |
136d6dae VP |
485 | return; |
486 | } | |
487 | } | |
488 | ||
489 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 490 | _("could not find a target to create inferior")); |
136d6dae VP |
491 | } |
492 | ||
d9d2d8b6 PA |
493 | void |
494 | target_terminal_inferior (void) | |
495 | { | |
496 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 497 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
498 | this point the target is not async yet. However, if sync_execution |
499 | is not set, we know it will become async prior to resume. */ | |
500 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
501 | return; |
502 | ||
503 | /* If GDB is resuming the inferior in the foreground, install | |
504 | inferior's terminal modes. */ | |
505 | (*current_target.to_terminal_inferior) (); | |
506 | } | |
136d6dae | 507 | |
c906108c | 508 | static int |
fba45db2 KB |
509 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
510 | struct target_ops *t) | |
c906108c | 511 | { |
c378eb4e MS |
512 | errno = EIO; /* Can't read/write this location. */ |
513 | return 0; /* No bytes handled. */ | |
c906108c SS |
514 | } |
515 | ||
516 | static void | |
fba45db2 | 517 | tcomplain (void) |
c906108c | 518 | { |
8a3fe4f8 | 519 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
520 | current_target.to_shortname); |
521 | } | |
522 | ||
523 | void | |
fba45db2 | 524 | noprocess (void) |
c906108c | 525 | { |
8a3fe4f8 | 526 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
527 | } |
528 | ||
c906108c | 529 | static void |
fba45db2 | 530 | default_terminal_info (char *args, int from_tty) |
c906108c | 531 | { |
a3f17187 | 532 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
533 | } |
534 | ||
0ef643c8 JB |
535 | /* A default implementation for the to_get_ada_task_ptid target method. |
536 | ||
537 | This function builds the PTID by using both LWP and TID as part of | |
538 | the PTID lwp and tid elements. The pid used is the pid of the | |
539 | inferior_ptid. */ | |
540 | ||
2c0b251b | 541 | static ptid_t |
0ef643c8 JB |
542 | default_get_ada_task_ptid (long lwp, long tid) |
543 | { | |
544 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
545 | } | |
546 | ||
32231432 PA |
547 | static enum exec_direction_kind |
548 | default_execution_direction (void) | |
549 | { | |
550 | if (!target_can_execute_reverse) | |
551 | return EXEC_FORWARD; | |
552 | else if (!target_can_async_p ()) | |
553 | return EXEC_FORWARD; | |
554 | else | |
555 | gdb_assert_not_reached ("\ | |
556 | to_execution_direction must be implemented for reverse async"); | |
557 | } | |
558 | ||
7998dfc3 AC |
559 | /* Go through the target stack from top to bottom, copying over zero |
560 | entries in current_target, then filling in still empty entries. In | |
561 | effect, we are doing class inheritance through the pushed target | |
562 | vectors. | |
563 | ||
564 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
565 | is currently implemented, is that it discards any knowledge of | |
566 | which target an inherited method originally belonged to. | |
567 | Consequently, new new target methods should instead explicitly and | |
568 | locally search the target stack for the target that can handle the | |
569 | request. */ | |
c906108c SS |
570 | |
571 | static void | |
7998dfc3 | 572 | update_current_target (void) |
c906108c | 573 | { |
7998dfc3 AC |
574 | struct target_ops *t; |
575 | ||
08d8bcd7 | 576 | /* First, reset current's contents. */ |
7998dfc3 AC |
577 | memset (¤t_target, 0, sizeof (current_target)); |
578 | ||
579 | #define INHERIT(FIELD, TARGET) \ | |
580 | if (!current_target.FIELD) \ | |
581 | current_target.FIELD = (TARGET)->FIELD | |
582 | ||
583 | for (t = target_stack; t; t = t->beneath) | |
584 | { | |
585 | INHERIT (to_shortname, t); | |
586 | INHERIT (to_longname, t); | |
587 | INHERIT (to_doc, t); | |
b52323fa UW |
588 | /* Do not inherit to_open. */ |
589 | /* Do not inherit to_close. */ | |
136d6dae | 590 | /* Do not inherit to_attach. */ |
7998dfc3 | 591 | INHERIT (to_post_attach, t); |
dc177b7a | 592 | INHERIT (to_attach_no_wait, t); |
136d6dae | 593 | /* Do not inherit to_detach. */ |
597320e7 | 594 | /* Do not inherit to_disconnect. */ |
28439f5e | 595 | /* Do not inherit to_resume. */ |
117de6a9 | 596 | /* Do not inherit to_wait. */ |
28439f5e PA |
597 | /* Do not inherit to_fetch_registers. */ |
598 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 599 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 600 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
601 | INHERIT (to_files_info, t); |
602 | INHERIT (to_insert_breakpoint, t); | |
603 | INHERIT (to_remove_breakpoint, t); | |
604 | INHERIT (to_can_use_hw_breakpoint, t); | |
605 | INHERIT (to_insert_hw_breakpoint, t); | |
606 | INHERIT (to_remove_hw_breakpoint, t); | |
f1310107 | 607 | /* Do not inherit to_ranged_break_num_registers. */ |
7998dfc3 AC |
608 | INHERIT (to_insert_watchpoint, t); |
609 | INHERIT (to_remove_watchpoint, t); | |
9c06b0b4 TJB |
610 | /* Do not inherit to_insert_mask_watchpoint. */ |
611 | /* Do not inherit to_remove_mask_watchpoint. */ | |
7998dfc3 | 612 | INHERIT (to_stopped_data_address, t); |
74174d2e | 613 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 614 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
615 | INHERIT (to_stopped_by_watchpoint, t); |
616 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 617 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 618 | INHERIT (to_can_accel_watchpoint_condition, t); |
9c06b0b4 | 619 | /* Do not inherit to_masked_watch_num_registers. */ |
7998dfc3 AC |
620 | INHERIT (to_terminal_init, t); |
621 | INHERIT (to_terminal_inferior, t); | |
622 | INHERIT (to_terminal_ours_for_output, t); | |
623 | INHERIT (to_terminal_ours, t); | |
624 | INHERIT (to_terminal_save_ours, t); | |
625 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 626 | /* Do not inherit to_kill. */ |
7998dfc3 | 627 | INHERIT (to_load, t); |
136d6dae | 628 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 629 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
630 | INHERIT (to_insert_fork_catchpoint, t); |
631 | INHERIT (to_remove_fork_catchpoint, t); | |
632 | INHERIT (to_insert_vfork_catchpoint, t); | |
633 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 634 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
635 | INHERIT (to_insert_exec_catchpoint, t); |
636 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 637 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 638 | INHERIT (to_has_exited, t); |
82892036 | 639 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 | 640 | INHERIT (to_can_run, t); |
2455069d | 641 | /* Do not inherit to_pass_signals. */ |
9b224c5e | 642 | /* Do not inherit to_program_signals. */ |
28439f5e PA |
643 | /* Do not inherit to_thread_alive. */ |
644 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 645 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 646 | INHERIT (to_extra_thread_info, t); |
4694da01 | 647 | INHERIT (to_thread_name, t); |
7998dfc3 | 648 | INHERIT (to_stop, t); |
4b8a223f | 649 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 650 | INHERIT (to_rcmd, t); |
7998dfc3 | 651 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 652 | INHERIT (to_log_command, t); |
7998dfc3 | 653 | INHERIT (to_stratum, t); |
c378eb4e MS |
654 | /* Do not inherit to_has_all_memory. */ |
655 | /* Do not inherit to_has_memory. */ | |
656 | /* Do not inherit to_has_stack. */ | |
657 | /* Do not inherit to_has_registers. */ | |
658 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 659 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
660 | INHERIT (to_can_async_p, t); |
661 | INHERIT (to_is_async_p, t); | |
662 | INHERIT (to_async, t); | |
7998dfc3 AC |
663 | INHERIT (to_find_memory_regions, t); |
664 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
665 | INHERIT (to_get_bookmark, t); |
666 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 667 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 668 | INHERIT (to_can_execute_reverse, t); |
32231432 | 669 | INHERIT (to_execution_direction, t); |
c2250ad1 | 670 | INHERIT (to_thread_architecture, t); |
424163ea | 671 | /* Do not inherit to_read_description. */ |
0ef643c8 | 672 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 673 | /* Do not inherit to_search_memory. */ |
8a305172 | 674 | INHERIT (to_supports_multi_process, t); |
d248b706 | 675 | INHERIT (to_supports_enable_disable_tracepoint, t); |
3065dfb6 | 676 | INHERIT (to_supports_string_tracing, t); |
35b1e5cc SS |
677 | INHERIT (to_trace_init, t); |
678 | INHERIT (to_download_tracepoint, t); | |
1e4d1764 | 679 | INHERIT (to_can_download_tracepoint, t); |
35b1e5cc | 680 | INHERIT (to_download_trace_state_variable, t); |
d248b706 KY |
681 | INHERIT (to_enable_tracepoint, t); |
682 | INHERIT (to_disable_tracepoint, t); | |
35b1e5cc SS |
683 | INHERIT (to_trace_set_readonly_regions, t); |
684 | INHERIT (to_trace_start, t); | |
685 | INHERIT (to_get_trace_status, t); | |
f196051f | 686 | INHERIT (to_get_tracepoint_status, t); |
35b1e5cc SS |
687 | INHERIT (to_trace_stop, t); |
688 | INHERIT (to_trace_find, t); | |
689 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
690 | INHERIT (to_save_trace_data, t); |
691 | INHERIT (to_upload_tracepoints, t); | |
692 | INHERIT (to_upload_trace_state_variables, t); | |
693 | INHERIT (to_get_raw_trace_data, t); | |
405f8e94 | 694 | INHERIT (to_get_min_fast_tracepoint_insn_len, t); |
35b1e5cc | 695 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 696 | INHERIT (to_set_circular_trace_buffer, t); |
f196051f | 697 | INHERIT (to_set_trace_notes, t); |
711e434b | 698 | INHERIT (to_get_tib_address, t); |
d914c394 | 699 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
700 | INHERIT (to_static_tracepoint_marker_at, t); |
701 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 702 | INHERIT (to_traceframe_info, t); |
d1feda86 YQ |
703 | INHERIT (to_use_agent, t); |
704 | INHERIT (to_can_use_agent, t); | |
7998dfc3 | 705 | INHERIT (to_magic, t); |
b775012e | 706 | INHERIT (to_supports_evaluation_of_breakpoint_conditions, t); |
fd79ecee | 707 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
708 | /* Do not inherit to_flash_erase. */ |
709 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
710 | } |
711 | #undef INHERIT | |
712 | ||
713 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
714 | it. Some entries are defaulted to a method that print an error, |
715 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
716 | |
717 | #define de_fault(field, value) \ | |
7998dfc3 AC |
718 | if (!current_target.field) \ |
719 | current_target.field = value | |
0d06e24b | 720 | |
2bc416ba DJ |
721 | de_fault (to_open, |
722 | (void (*) (char *, int)) | |
0d06e24b | 723 | tcomplain); |
2bc416ba DJ |
724 | de_fault (to_close, |
725 | (void (*) (int)) | |
0d06e24b | 726 | target_ignore); |
2bc416ba DJ |
727 | de_fault (to_post_attach, |
728 | (void (*) (int)) | |
0d06e24b | 729 | target_ignore); |
2bc416ba | 730 | de_fault (to_prepare_to_store, |
316f2060 | 731 | (void (*) (struct regcache *)) |
0d06e24b | 732 | noprocess); |
2bc416ba | 733 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
734 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
735 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 736 | nomemory); |
2bc416ba DJ |
737 | de_fault (to_files_info, |
738 | (void (*) (struct target_ops *)) | |
0d06e24b | 739 | target_ignore); |
2bc416ba | 740 | de_fault (to_insert_breakpoint, |
0d06e24b | 741 | memory_insert_breakpoint); |
2bc416ba | 742 | de_fault (to_remove_breakpoint, |
0d06e24b | 743 | memory_remove_breakpoint); |
ccaa32c7 GS |
744 | de_fault (to_can_use_hw_breakpoint, |
745 | (int (*) (int, int, int)) | |
746 | return_zero); | |
747 | de_fault (to_insert_hw_breakpoint, | |
a6d9a66e | 748 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
749 | return_minus_one); |
750 | de_fault (to_remove_hw_breakpoint, | |
a6d9a66e | 751 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
752 | return_minus_one); |
753 | de_fault (to_insert_watchpoint, | |
0cf6dd15 | 754 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
755 | return_minus_one); |
756 | de_fault (to_remove_watchpoint, | |
0cf6dd15 | 757 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
758 | return_minus_one); |
759 | de_fault (to_stopped_by_watchpoint, | |
760 | (int (*) (void)) | |
761 | return_zero); | |
762 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 763 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 764 | return_zero); |
5009afc5 AS |
765 | de_fault (to_watchpoint_addr_within_range, |
766 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
767 | de_fault (to_region_ok_for_hw_watchpoint, |
768 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 TJB |
769 | de_fault (to_can_accel_watchpoint_condition, |
770 | (int (*) (CORE_ADDR, int, int, struct expression *)) | |
771 | return_zero); | |
2bc416ba DJ |
772 | de_fault (to_terminal_init, |
773 | (void (*) (void)) | |
0d06e24b | 774 | target_ignore); |
2bc416ba DJ |
775 | de_fault (to_terminal_inferior, |
776 | (void (*) (void)) | |
0d06e24b | 777 | target_ignore); |
2bc416ba DJ |
778 | de_fault (to_terminal_ours_for_output, |
779 | (void (*) (void)) | |
0d06e24b | 780 | target_ignore); |
2bc416ba DJ |
781 | de_fault (to_terminal_ours, |
782 | (void (*) (void)) | |
0d06e24b | 783 | target_ignore); |
2bc416ba DJ |
784 | de_fault (to_terminal_save_ours, |
785 | (void (*) (void)) | |
a790ad35 | 786 | target_ignore); |
2bc416ba | 787 | de_fault (to_terminal_info, |
0d06e24b | 788 | default_terminal_info); |
2bc416ba DJ |
789 | de_fault (to_load, |
790 | (void (*) (char *, int)) | |
0d06e24b | 791 | tcomplain); |
2bc416ba DJ |
792 | de_fault (to_post_startup_inferior, |
793 | (void (*) (ptid_t)) | |
0d06e24b | 794 | target_ignore); |
2bc416ba | 795 | de_fault (to_insert_fork_catchpoint, |
77b06cd7 TJB |
796 | (int (*) (int)) |
797 | return_one); | |
2bc416ba DJ |
798 | de_fault (to_remove_fork_catchpoint, |
799 | (int (*) (int)) | |
77b06cd7 | 800 | return_one); |
2bc416ba | 801 | de_fault (to_insert_vfork_catchpoint, |
77b06cd7 TJB |
802 | (int (*) (int)) |
803 | return_one); | |
2bc416ba DJ |
804 | de_fault (to_remove_vfork_catchpoint, |
805 | (int (*) (int)) | |
77b06cd7 | 806 | return_one); |
2bc416ba | 807 | de_fault (to_insert_exec_catchpoint, |
77b06cd7 TJB |
808 | (int (*) (int)) |
809 | return_one); | |
2bc416ba DJ |
810 | de_fault (to_remove_exec_catchpoint, |
811 | (int (*) (int)) | |
77b06cd7 | 812 | return_one); |
a96d9b2e SDJ |
813 | de_fault (to_set_syscall_catchpoint, |
814 | (int (*) (int, int, int, int, int *)) | |
77b06cd7 | 815 | return_one); |
2bc416ba DJ |
816 | de_fault (to_has_exited, |
817 | (int (*) (int, int, int *)) | |
0d06e24b | 818 | return_zero); |
2bc416ba | 819 | de_fault (to_can_run, |
0d06e24b | 820 | return_zero); |
2bc416ba DJ |
821 | de_fault (to_extra_thread_info, |
822 | (char *(*) (struct thread_info *)) | |
0d06e24b | 823 | return_zero); |
4694da01 TT |
824 | de_fault (to_thread_name, |
825 | (char *(*) (struct thread_info *)) | |
826 | return_zero); | |
2bc416ba | 827 | de_fault (to_stop, |
94cc34af | 828 | (void (*) (ptid_t)) |
0d06e24b | 829 | target_ignore); |
cf7a04e8 | 830 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
831 | de_fault (to_rcmd, |
832 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 833 | tcomplain); |
2bc416ba DJ |
834 | de_fault (to_pid_to_exec_file, |
835 | (char *(*) (int)) | |
0d06e24b | 836 | return_zero); |
2bc416ba DJ |
837 | de_fault (to_async, |
838 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 839 | tcomplain); |
c2250ad1 UW |
840 | de_fault (to_thread_architecture, |
841 | default_thread_architecture); | |
424163ea | 842 | current_target.to_read_description = NULL; |
0ef643c8 JB |
843 | de_fault (to_get_ada_task_ptid, |
844 | (ptid_t (*) (long, long)) | |
845 | default_get_ada_task_ptid); | |
8a305172 PA |
846 | de_fault (to_supports_multi_process, |
847 | (int (*) (void)) | |
848 | return_zero); | |
d248b706 KY |
849 | de_fault (to_supports_enable_disable_tracepoint, |
850 | (int (*) (void)) | |
851 | return_zero); | |
3065dfb6 SS |
852 | de_fault (to_supports_string_tracing, |
853 | (int (*) (void)) | |
854 | return_zero); | |
35b1e5cc SS |
855 | de_fault (to_trace_init, |
856 | (void (*) (void)) | |
857 | tcomplain); | |
858 | de_fault (to_download_tracepoint, | |
e8ba3115 | 859 | (void (*) (struct bp_location *)) |
35b1e5cc | 860 | tcomplain); |
1e4d1764 YQ |
861 | de_fault (to_can_download_tracepoint, |
862 | (int (*) (void)) | |
863 | return_zero); | |
35b1e5cc SS |
864 | de_fault (to_download_trace_state_variable, |
865 | (void (*) (struct trace_state_variable *)) | |
866 | tcomplain); | |
d248b706 KY |
867 | de_fault (to_enable_tracepoint, |
868 | (void (*) (struct bp_location *)) | |
869 | tcomplain); | |
870 | de_fault (to_disable_tracepoint, | |
871 | (void (*) (struct bp_location *)) | |
872 | tcomplain); | |
35b1e5cc SS |
873 | de_fault (to_trace_set_readonly_regions, |
874 | (void (*) (void)) | |
875 | tcomplain); | |
876 | de_fault (to_trace_start, | |
877 | (void (*) (void)) | |
878 | tcomplain); | |
879 | de_fault (to_get_trace_status, | |
00bf0b85 | 880 | (int (*) (struct trace_status *)) |
35b1e5cc | 881 | return_minus_one); |
f196051f SS |
882 | de_fault (to_get_tracepoint_status, |
883 | (void (*) (struct breakpoint *, struct uploaded_tp *)) | |
884 | tcomplain); | |
35b1e5cc SS |
885 | de_fault (to_trace_stop, |
886 | (void (*) (void)) | |
887 | tcomplain); | |
888 | de_fault (to_trace_find, | |
889 | (int (*) (enum trace_find_type, int, ULONGEST, ULONGEST, int *)) | |
4136fdd2 | 890 | return_minus_one); |
35b1e5cc SS |
891 | de_fault (to_get_trace_state_variable_value, |
892 | (int (*) (int, LONGEST *)) | |
893 | return_zero); | |
00bf0b85 | 894 | de_fault (to_save_trace_data, |
011aacb0 | 895 | (int (*) (const char *)) |
00bf0b85 SS |
896 | tcomplain); |
897 | de_fault (to_upload_tracepoints, | |
898 | (int (*) (struct uploaded_tp **)) | |
899 | return_zero); | |
900 | de_fault (to_upload_trace_state_variables, | |
901 | (int (*) (struct uploaded_tsv **)) | |
902 | return_zero); | |
903 | de_fault (to_get_raw_trace_data, | |
904 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
905 | tcomplain); | |
405f8e94 SS |
906 | de_fault (to_get_min_fast_tracepoint_insn_len, |
907 | (int (*) (void)) | |
908 | return_minus_one); | |
35b1e5cc SS |
909 | de_fault (to_set_disconnected_tracing, |
910 | (void (*) (int)) | |
4daf5ac0 SS |
911 | target_ignore); |
912 | de_fault (to_set_circular_trace_buffer, | |
913 | (void (*) (int)) | |
914 | target_ignore); | |
f196051f SS |
915 | de_fault (to_set_trace_notes, |
916 | (int (*) (char *, char *, char *)) | |
917 | return_zero); | |
711e434b PM |
918 | de_fault (to_get_tib_address, |
919 | (int (*) (ptid_t, CORE_ADDR *)) | |
920 | tcomplain); | |
d914c394 SS |
921 | de_fault (to_set_permissions, |
922 | (void (*) (void)) | |
923 | target_ignore); | |
0fb4aa4b PA |
924 | de_fault (to_static_tracepoint_marker_at, |
925 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
926 | return_zero); | |
927 | de_fault (to_static_tracepoint_markers_by_strid, | |
928 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
929 | tcomplain); | |
b3b9301e PA |
930 | de_fault (to_traceframe_info, |
931 | (struct traceframe_info * (*) (void)) | |
932 | tcomplain); | |
b775012e LM |
933 | de_fault (to_supports_evaluation_of_breakpoint_conditions, |
934 | (int (*) (void)) | |
935 | return_zero); | |
d1feda86 YQ |
936 | de_fault (to_use_agent, |
937 | (int (*) (int)) | |
938 | tcomplain); | |
939 | de_fault (to_can_use_agent, | |
940 | (int (*) (void)) | |
941 | return_zero); | |
32231432 PA |
942 | de_fault (to_execution_direction, default_execution_direction); |
943 | ||
c906108c | 944 | #undef de_fault |
c906108c | 945 | |
7998dfc3 AC |
946 | /* Finally, position the target-stack beneath the squashed |
947 | "current_target". That way code looking for a non-inherited | |
948 | target method can quickly and simply find it. */ | |
949 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
950 | |
951 | if (targetdebug) | |
952 | setup_target_debug (); | |
c906108c SS |
953 | } |
954 | ||
955 | /* Push a new target type into the stack of the existing target accessors, | |
956 | possibly superseding some of the existing accessors. | |
957 | ||
c906108c SS |
958 | Rather than allow an empty stack, we always have the dummy target at |
959 | the bottom stratum, so we can call the function vectors without | |
960 | checking them. */ | |
961 | ||
b26a4dcb | 962 | void |
fba45db2 | 963 | push_target (struct target_ops *t) |
c906108c | 964 | { |
258b763a | 965 | struct target_ops **cur; |
c906108c SS |
966 | |
967 | /* Check magic number. If wrong, it probably means someone changed | |
968 | the struct definition, but not all the places that initialize one. */ | |
969 | if (t->to_magic != OPS_MAGIC) | |
970 | { | |
c5aa993b JM |
971 | fprintf_unfiltered (gdb_stderr, |
972 | "Magic number of %s target struct wrong\n", | |
973 | t->to_shortname); | |
3e43a32a MS |
974 | internal_error (__FILE__, __LINE__, |
975 | _("failed internal consistency check")); | |
c906108c SS |
976 | } |
977 | ||
258b763a AC |
978 | /* Find the proper stratum to install this target in. */ |
979 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 980 | { |
258b763a | 981 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
982 | break; |
983 | } | |
984 | ||
258b763a | 985 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 986 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
987 | targets to CUR, and not just those at this stratum level. */ |
988 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
989 | { | |
990 | /* There's already something at this stratum level. Close it, | |
991 | and un-hook it from the stack. */ | |
992 | struct target_ops *tmp = (*cur); | |
5d502164 | 993 | |
258b763a AC |
994 | (*cur) = (*cur)->beneath; |
995 | tmp->beneath = NULL; | |
f1c07ab0 | 996 | target_close (tmp, 0); |
258b763a | 997 | } |
c906108c SS |
998 | |
999 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
1000 | t->beneath = (*cur); |
1001 | (*cur) = t; | |
c906108c SS |
1002 | |
1003 | update_current_target (); | |
c906108c SS |
1004 | } |
1005 | ||
2bc416ba | 1006 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
1007 | Return how many times it was removed (0 or 1). */ |
1008 | ||
1009 | int | |
fba45db2 | 1010 | unpush_target (struct target_ops *t) |
c906108c | 1011 | { |
258b763a AC |
1012 | struct target_ops **cur; |
1013 | struct target_ops *tmp; | |
c906108c | 1014 | |
c8d104ad PA |
1015 | if (t->to_stratum == dummy_stratum) |
1016 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 1017 | _("Attempt to unpush the dummy target")); |
c8d104ad | 1018 | |
c906108c | 1019 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 1020 | can only occur once in the target stack. */ |
c906108c | 1021 | |
258b763a AC |
1022 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
1023 | { | |
1024 | if ((*cur) == t) | |
1025 | break; | |
1026 | } | |
c906108c | 1027 | |
305436e0 PA |
1028 | /* If we don't find target_ops, quit. Only open targets should be |
1029 | closed. */ | |
258b763a | 1030 | if ((*cur) == NULL) |
305436e0 | 1031 | return 0; |
5269965e | 1032 | |
c378eb4e | 1033 | /* Unchain the target. */ |
258b763a AC |
1034 | tmp = (*cur); |
1035 | (*cur) = (*cur)->beneath; | |
1036 | tmp->beneath = NULL; | |
c906108c SS |
1037 | |
1038 | update_current_target (); | |
c906108c | 1039 | |
305436e0 PA |
1040 | /* Finally close the target. Note we do this after unchaining, so |
1041 | any target method calls from within the target_close | |
1042 | implementation don't end up in T anymore. */ | |
1043 | target_close (t, 0); | |
1044 | ||
c906108c SS |
1045 | return 1; |
1046 | } | |
1047 | ||
1048 | void | |
fba45db2 | 1049 | pop_target (void) |
c906108c | 1050 | { |
c378eb4e | 1051 | target_close (target_stack, 0); /* Let it clean up. */ |
258b763a | 1052 | if (unpush_target (target_stack) == 1) |
c906108c SS |
1053 | return; |
1054 | ||
c5aa993b JM |
1055 | fprintf_unfiltered (gdb_stderr, |
1056 | "pop_target couldn't find target %s\n", | |
1057 | current_target.to_shortname); | |
5d502164 MS |
1058 | internal_error (__FILE__, __LINE__, |
1059 | _("failed internal consistency check")); | |
c906108c SS |
1060 | } |
1061 | ||
aa76d38d | 1062 | void |
87ab71f0 | 1063 | pop_all_targets_above (enum strata above_stratum, int quitting) |
aa76d38d | 1064 | { |
87ab71f0 | 1065 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1066 | { |
b52323fa | 1067 | target_close (target_stack, quitting); |
aa76d38d PA |
1068 | if (!unpush_target (target_stack)) |
1069 | { | |
1070 | fprintf_unfiltered (gdb_stderr, | |
1071 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1072 | target_stack->to_shortname); |
aa76d38d PA |
1073 | internal_error (__FILE__, __LINE__, |
1074 | _("failed internal consistency check")); | |
1075 | break; | |
1076 | } | |
1077 | } | |
1078 | } | |
1079 | ||
87ab71f0 PA |
1080 | void |
1081 | pop_all_targets (int quitting) | |
1082 | { | |
1083 | pop_all_targets_above (dummy_stratum, quitting); | |
1084 | } | |
1085 | ||
c0edd9ed JK |
1086 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1087 | ||
1088 | int | |
1089 | target_is_pushed (struct target_ops *t) | |
1090 | { | |
1091 | struct target_ops **cur; | |
1092 | ||
1093 | /* Check magic number. If wrong, it probably means someone changed | |
1094 | the struct definition, but not all the places that initialize one. */ | |
1095 | if (t->to_magic != OPS_MAGIC) | |
1096 | { | |
1097 | fprintf_unfiltered (gdb_stderr, | |
1098 | "Magic number of %s target struct wrong\n", | |
1099 | t->to_shortname); | |
3e43a32a MS |
1100 | internal_error (__FILE__, __LINE__, |
1101 | _("failed internal consistency check")); | |
c0edd9ed JK |
1102 | } |
1103 | ||
1104 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1105 | if (*cur == t) | |
1106 | return 1; | |
1107 | ||
1108 | return 0; | |
1109 | } | |
1110 | ||
72f5cf0e | 1111 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1112 | current thread's thread-local storage with offset OFFSET. */ |
1113 | CORE_ADDR | |
1114 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1115 | { | |
1116 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1117 | struct target_ops *target; |
1118 | ||
1119 | for (target = current_target.beneath; | |
1120 | target != NULL; | |
1121 | target = target->beneath) | |
1122 | { | |
1123 | if (target->to_get_thread_local_address != NULL) | |
1124 | break; | |
1125 | } | |
9e35dae4 | 1126 | |
117de6a9 | 1127 | if (target != NULL |
1cf3db46 | 1128 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch)) |
9e35dae4 DJ |
1129 | { |
1130 | ptid_t ptid = inferior_ptid; | |
1131 | volatile struct gdb_exception ex; | |
1132 | ||
1133 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1134 | { | |
1135 | CORE_ADDR lm_addr; | |
1136 | ||
1137 | /* Fetch the load module address for this objfile. */ | |
1cf3db46 | 1138 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch, |
9e35dae4 DJ |
1139 | objfile); |
1140 | /* If it's 0, throw the appropriate exception. */ | |
1141 | if (lm_addr == 0) | |
1142 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1143 | _("TLS load module not found")); | |
1144 | ||
3e43a32a MS |
1145 | addr = target->to_get_thread_local_address (target, ptid, |
1146 | lm_addr, offset); | |
9e35dae4 DJ |
1147 | } |
1148 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1149 | throw the error to some higher catcher. */ | |
1150 | if (ex.reason < 0) | |
1151 | { | |
1152 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1153 | ||
1154 | switch (ex.error) | |
1155 | { | |
1156 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1157 | error (_("Cannot find thread-local variables " |
1158 | "in this thread library.")); | |
9e35dae4 DJ |
1159 | break; |
1160 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1161 | if (objfile_is_library) | |
1162 | error (_("Cannot find shared library `%s' in dynamic" | |
1163 | " linker's load module list"), objfile->name); | |
1164 | else | |
1165 | error (_("Cannot find executable file `%s' in dynamic" | |
1166 | " linker's load module list"), objfile->name); | |
1167 | break; | |
1168 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1169 | if (objfile_is_library) | |
1170 | error (_("The inferior has not yet allocated storage for" | |
1171 | " thread-local variables in\n" | |
1172 | "the shared library `%s'\n" | |
1173 | "for %s"), | |
1174 | objfile->name, target_pid_to_str (ptid)); | |
1175 | else | |
1176 | error (_("The inferior has not yet allocated storage for" | |
1177 | " thread-local variables in\n" | |
1178 | "the executable `%s'\n" | |
1179 | "for %s"), | |
1180 | objfile->name, target_pid_to_str (ptid)); | |
1181 | break; | |
1182 | case TLS_GENERIC_ERROR: | |
1183 | if (objfile_is_library) | |
1184 | error (_("Cannot find thread-local storage for %s, " | |
1185 | "shared library %s:\n%s"), | |
1186 | target_pid_to_str (ptid), | |
1187 | objfile->name, ex.message); | |
1188 | else | |
1189 | error (_("Cannot find thread-local storage for %s, " | |
1190 | "executable file %s:\n%s"), | |
1191 | target_pid_to_str (ptid), | |
1192 | objfile->name, ex.message); | |
1193 | break; | |
1194 | default: | |
1195 | throw_exception (ex); | |
1196 | break; | |
1197 | } | |
1198 | } | |
1199 | } | |
1200 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1201 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1202 | else | |
1203 | error (_("Cannot find thread-local variables on this target")); | |
1204 | ||
1205 | return addr; | |
1206 | } | |
1207 | ||
c906108c SS |
1208 | #undef MIN |
1209 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1210 | ||
1211 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1212 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1213 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1214 | is responsible for freeing it. Return the number of bytes successfully | |
1215 | read. */ | |
1216 | ||
1217 | int | |
fba45db2 | 1218 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
1219 | { |
1220 | int tlen, origlen, offset, i; | |
1b0ba102 | 1221 | gdb_byte buf[4]; |
c906108c SS |
1222 | int errcode = 0; |
1223 | char *buffer; | |
1224 | int buffer_allocated; | |
1225 | char *bufptr; | |
1226 | unsigned int nbytes_read = 0; | |
1227 | ||
6217bf3e MS |
1228 | gdb_assert (string); |
1229 | ||
c906108c SS |
1230 | /* Small for testing. */ |
1231 | buffer_allocated = 4; | |
1232 | buffer = xmalloc (buffer_allocated); | |
1233 | bufptr = buffer; | |
1234 | ||
1235 | origlen = len; | |
1236 | ||
1237 | while (len > 0) | |
1238 | { | |
1239 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1240 | offset = memaddr & 3; | |
1241 | ||
1b0ba102 | 1242 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1243 | if (errcode != 0) |
1244 | { | |
1245 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1246 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1247 | a single byte. */ |
1248 | tlen = 1; | |
1249 | offset = 0; | |
b8eb5af0 | 1250 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1251 | if (errcode != 0) |
1252 | goto done; | |
1253 | } | |
1254 | ||
1255 | if (bufptr - buffer + tlen > buffer_allocated) | |
1256 | { | |
1257 | unsigned int bytes; | |
5d502164 | 1258 | |
c906108c SS |
1259 | bytes = bufptr - buffer; |
1260 | buffer_allocated *= 2; | |
1261 | buffer = xrealloc (buffer, buffer_allocated); | |
1262 | bufptr = buffer + bytes; | |
1263 | } | |
1264 | ||
1265 | for (i = 0; i < tlen; i++) | |
1266 | { | |
1267 | *bufptr++ = buf[i + offset]; | |
1268 | if (buf[i + offset] == '\000') | |
1269 | { | |
1270 | nbytes_read += i + 1; | |
1271 | goto done; | |
1272 | } | |
1273 | } | |
1274 | ||
1275 | memaddr += tlen; | |
1276 | len -= tlen; | |
1277 | nbytes_read += tlen; | |
1278 | } | |
c5aa993b | 1279 | done: |
6217bf3e | 1280 | *string = buffer; |
c906108c SS |
1281 | if (errnop != NULL) |
1282 | *errnop = errcode; | |
c906108c SS |
1283 | return nbytes_read; |
1284 | } | |
1285 | ||
07b82ea5 PA |
1286 | struct target_section_table * |
1287 | target_get_section_table (struct target_ops *target) | |
1288 | { | |
1289 | struct target_ops *t; | |
1290 | ||
1291 | if (targetdebug) | |
1292 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1293 | ||
1294 | for (t = target; t != NULL; t = t->beneath) | |
1295 | if (t->to_get_section_table != NULL) | |
1296 | return (*t->to_get_section_table) (t); | |
1297 | ||
1298 | return NULL; | |
1299 | } | |
1300 | ||
8db32d44 | 1301 | /* Find a section containing ADDR. */ |
07b82ea5 | 1302 | |
0542c86d | 1303 | struct target_section * |
8db32d44 AC |
1304 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1305 | { | |
07b82ea5 | 1306 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1307 | struct target_section *secp; |
07b82ea5 PA |
1308 | |
1309 | if (table == NULL) | |
1310 | return NULL; | |
1311 | ||
1312 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1313 | { |
1314 | if (addr >= secp->addr && addr < secp->endaddr) | |
1315 | return secp; | |
1316 | } | |
1317 | return NULL; | |
1318 | } | |
1319 | ||
e6e4e701 PA |
1320 | /* Read memory from the live target, even if currently inspecting a |
1321 | traceframe. The return is the same as that of target_read. */ | |
1322 | ||
1323 | static LONGEST | |
1324 | target_read_live_memory (enum target_object object, | |
1325 | ULONGEST memaddr, gdb_byte *myaddr, LONGEST len) | |
1326 | { | |
1327 | int ret; | |
1328 | struct cleanup *cleanup; | |
1329 | ||
1330 | /* Switch momentarily out of tfind mode so to access live memory. | |
1331 | Note that this must not clear global state, such as the frame | |
1332 | cache, which must still remain valid for the previous traceframe. | |
1333 | We may be _building_ the frame cache at this point. */ | |
1334 | cleanup = make_cleanup_restore_traceframe_number (); | |
1335 | set_traceframe_number (-1); | |
1336 | ||
1337 | ret = target_read (current_target.beneath, object, NULL, | |
1338 | myaddr, memaddr, len); | |
1339 | ||
1340 | do_cleanups (cleanup); | |
1341 | return ret; | |
1342 | } | |
1343 | ||
1344 | /* Using the set of read-only target sections of OPS, read live | |
1345 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1346 | top-most target again. |
1347 | ||
1348 | For interface/parameters/return description see target.h, | |
1349 | to_xfer_partial. */ | |
e6e4e701 PA |
1350 | |
1351 | static LONGEST | |
1352 | memory_xfer_live_readonly_partial (struct target_ops *ops, | |
1353 | enum target_object object, | |
1354 | gdb_byte *readbuf, ULONGEST memaddr, | |
1355 | LONGEST len) | |
1356 | { | |
1357 | struct target_section *secp; | |
1358 | struct target_section_table *table; | |
1359 | ||
1360 | secp = target_section_by_addr (ops, memaddr); | |
1361 | if (secp != NULL | |
1362 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1363 | & SEC_READONLY)) | |
1364 | { | |
1365 | struct target_section *p; | |
1366 | ULONGEST memend = memaddr + len; | |
1367 | ||
1368 | table = target_get_section_table (ops); | |
1369 | ||
1370 | for (p = table->sections; p < table->sections_end; p++) | |
1371 | { | |
1372 | if (memaddr >= p->addr) | |
1373 | { | |
1374 | if (memend <= p->endaddr) | |
1375 | { | |
1376 | /* Entire transfer is within this section. */ | |
1377 | return target_read_live_memory (object, memaddr, | |
1378 | readbuf, len); | |
1379 | } | |
1380 | else if (memaddr >= p->endaddr) | |
1381 | { | |
1382 | /* This section ends before the transfer starts. */ | |
1383 | continue; | |
1384 | } | |
1385 | else | |
1386 | { | |
1387 | /* This section overlaps the transfer. Just do half. */ | |
1388 | len = p->endaddr - memaddr; | |
1389 | return target_read_live_memory (object, memaddr, | |
1390 | readbuf, len); | |
1391 | } | |
1392 | } | |
1393 | } | |
1394 | } | |
1395 | ||
1396 | return 0; | |
1397 | } | |
1398 | ||
7f79c47e DE |
1399 | /* Perform a partial memory transfer. |
1400 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 DJ |
1401 | |
1402 | static LONGEST | |
f0ba3972 PA |
1403 | memory_xfer_partial_1 (struct target_ops *ops, enum target_object object, |
1404 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1405 | LONGEST len) | |
0779438d | 1406 | { |
cf7a04e8 DJ |
1407 | LONGEST res; |
1408 | int reg_len; | |
1409 | struct mem_region *region; | |
4e5d721f | 1410 | struct inferior *inf; |
cf7a04e8 | 1411 | |
07b82ea5 PA |
1412 | /* For accesses to unmapped overlay sections, read directly from |
1413 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1414 | if (readbuf != NULL && overlay_debugging) | |
1415 | { | |
1416 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1417 | |
07b82ea5 PA |
1418 | if (pc_in_unmapped_range (memaddr, section)) |
1419 | { | |
1420 | struct target_section_table *table | |
1421 | = target_get_section_table (ops); | |
1422 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1423 | |
07b82ea5 PA |
1424 | memaddr = overlay_mapped_address (memaddr, section); |
1425 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1426 | memaddr, len, | |
1427 | table->sections, | |
1428 | table->sections_end, | |
1429 | section_name); | |
1430 | } | |
1431 | } | |
1432 | ||
1433 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1434 | if (readbuf != NULL && trust_readonly) |
1435 | { | |
0542c86d | 1436 | struct target_section *secp; |
07b82ea5 | 1437 | struct target_section_table *table; |
cf7a04e8 DJ |
1438 | |
1439 | secp = target_section_by_addr (ops, memaddr); | |
1440 | if (secp != NULL | |
1441 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1442 | & SEC_READONLY)) | |
07b82ea5 PA |
1443 | { |
1444 | table = target_get_section_table (ops); | |
1445 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1446 | memaddr, len, | |
1447 | table->sections, | |
1448 | table->sections_end, | |
1449 | NULL); | |
1450 | } | |
98646950 UW |
1451 | } |
1452 | ||
e6e4e701 PA |
1453 | /* If reading unavailable memory in the context of traceframes, and |
1454 | this address falls within a read-only section, fallback to | |
1455 | reading from live memory. */ | |
1456 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1457 | { | |
1458 | VEC(mem_range_s) *available; | |
1459 | ||
1460 | /* If we fail to get the set of available memory, then the | |
1461 | target does not support querying traceframe info, and so we | |
1462 | attempt reading from the traceframe anyway (assuming the | |
1463 | target implements the old QTro packet then). */ | |
1464 | if (traceframe_available_memory (&available, memaddr, len)) | |
1465 | { | |
1466 | struct cleanup *old_chain; | |
1467 | ||
1468 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1469 | ||
1470 | if (VEC_empty (mem_range_s, available) | |
1471 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1472 | { | |
1473 | /* Don't read into the traceframe's available | |
1474 | memory. */ | |
1475 | if (!VEC_empty (mem_range_s, available)) | |
1476 | { | |
1477 | LONGEST oldlen = len; | |
1478 | ||
1479 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1480 | gdb_assert (len <= oldlen); | |
1481 | } | |
1482 | ||
1483 | do_cleanups (old_chain); | |
1484 | ||
1485 | /* This goes through the topmost target again. */ | |
1486 | res = memory_xfer_live_readonly_partial (ops, object, | |
1487 | readbuf, memaddr, len); | |
1488 | if (res > 0) | |
1489 | return res; | |
1490 | ||
1491 | /* No use trying further, we know some memory starting | |
1492 | at MEMADDR isn't available. */ | |
1493 | return -1; | |
1494 | } | |
1495 | ||
1496 | /* Don't try to read more than how much is available, in | |
1497 | case the target implements the deprecated QTro packet to | |
1498 | cater for older GDBs (the target's knowledge of read-only | |
1499 | sections may be outdated by now). */ | |
1500 | len = VEC_index (mem_range_s, available, 0)->length; | |
1501 | ||
1502 | do_cleanups (old_chain); | |
1503 | } | |
1504 | } | |
1505 | ||
cf7a04e8 DJ |
1506 | /* Try GDB's internal data cache. */ |
1507 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1508 | /* region->hi == 0 means there's no upper bound. */ |
1509 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1510 | reg_len = len; |
1511 | else | |
1512 | reg_len = region->hi - memaddr; | |
1513 | ||
1514 | switch (region->attrib.mode) | |
1515 | { | |
1516 | case MEM_RO: | |
1517 | if (writebuf != NULL) | |
1518 | return -1; | |
1519 | break; | |
1520 | ||
1521 | case MEM_WO: | |
1522 | if (readbuf != NULL) | |
1523 | return -1; | |
1524 | break; | |
a76d924d DJ |
1525 | |
1526 | case MEM_FLASH: | |
1527 | /* We only support writing to flash during "load" for now. */ | |
1528 | if (writebuf != NULL) | |
1529 | error (_("Writing to flash memory forbidden in this context")); | |
1530 | break; | |
4b5752d0 VP |
1531 | |
1532 | case MEM_NONE: | |
1533 | return -1; | |
cf7a04e8 DJ |
1534 | } |
1535 | ||
6c95b8df PA |
1536 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1537 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1538 | else | |
1539 | inf = NULL; | |
4e5d721f DE |
1540 | |
1541 | if (inf != NULL | |
2f4d8875 PA |
1542 | /* The dcache reads whole cache lines; that doesn't play well |
1543 | with reading from a trace buffer, because reading outside of | |
1544 | the collected memory range fails. */ | |
1545 | && get_traceframe_number () == -1 | |
4e5d721f DE |
1546 | && (region->attrib.cache |
1547 | || (stack_cache_enabled_p && object == TARGET_OBJECT_STACK_MEMORY))) | |
cf7a04e8 | 1548 | { |
cf7a04e8 | 1549 | if (readbuf != NULL) |
25f122dc | 1550 | res = dcache_xfer_memory (ops, target_dcache, memaddr, readbuf, |
cf7a04e8 DJ |
1551 | reg_len, 0); |
1552 | else | |
1553 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1554 | correctness dcache_xfer_memory should take readbuf and | |
1555 | writebuf. */ | |
25f122dc | 1556 | res = dcache_xfer_memory (ops, target_dcache, memaddr, |
cf7a04e8 DJ |
1557 | (void *) writebuf, |
1558 | reg_len, 1); | |
1559 | if (res <= 0) | |
1560 | return -1; | |
1561 | else | |
f0ba3972 | 1562 | return res; |
cf7a04e8 DJ |
1563 | } |
1564 | ||
1565 | /* If none of those methods found the memory we wanted, fall back | |
1566 | to a target partial transfer. Normally a single call to | |
1567 | to_xfer_partial is enough; if it doesn't recognize an object | |
1568 | it will call the to_xfer_partial of the next target down. | |
1569 | But for memory this won't do. Memory is the only target | |
1570 | object which can be read from more than one valid target. | |
1571 | A core file, for instance, could have some of memory but | |
1572 | delegate other bits to the target below it. So, we must | |
1573 | manually try all targets. */ | |
1574 | ||
1575 | do | |
1576 | { | |
1577 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1578 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1579 | if (res > 0) |
8defab1a | 1580 | break; |
cf7a04e8 | 1581 | |
5ad3a4ca DJ |
1582 | /* We want to continue past core files to executables, but not |
1583 | past a running target's memory. */ | |
c35b1492 | 1584 | if (ops->to_has_all_memory (ops)) |
8defab1a | 1585 | break; |
5ad3a4ca | 1586 | |
cf7a04e8 DJ |
1587 | ops = ops->beneath; |
1588 | } | |
1589 | while (ops != NULL); | |
1590 | ||
41dcd03f DE |
1591 | /* Make sure the cache gets updated no matter what - if we are writing |
1592 | to the stack. Even if this write is not tagged as such, we still need | |
1593 | to update the cache. */ | |
1594 | ||
1595 | if (res > 0 | |
1596 | && inf != NULL | |
1597 | && writebuf != NULL | |
1598 | && !region->attrib.cache | |
1599 | && stack_cache_enabled_p | |
1600 | && object != TARGET_OBJECT_STACK_MEMORY) | |
1601 | { | |
7d4f32d3 | 1602 | dcache_update (target_dcache, memaddr, (void *) writebuf, res); |
41dcd03f DE |
1603 | } |
1604 | ||
cf7a04e8 DJ |
1605 | /* If we still haven't got anything, return the last error. We |
1606 | give up. */ | |
1607 | return res; | |
0779438d AC |
1608 | } |
1609 | ||
f0ba3972 PA |
1610 | /* Perform a partial memory transfer. For docs see target.h, |
1611 | to_xfer_partial. */ | |
1612 | ||
1613 | static LONGEST | |
1614 | memory_xfer_partial (struct target_ops *ops, enum target_object object, | |
1615 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1616 | LONGEST len) | |
1617 | { | |
1618 | int res; | |
1619 | ||
1620 | /* Zero length requests are ok and require no work. */ | |
1621 | if (len == 0) | |
1622 | return 0; | |
1623 | ||
1624 | /* Fill in READBUF with breakpoint shadows, or WRITEBUF with | |
1625 | breakpoint insns, thus hiding out from higher layers whether | |
1626 | there are software breakpoints inserted in the code stream. */ | |
1627 | if (readbuf != NULL) | |
1628 | { | |
1629 | res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len); | |
1630 | ||
1631 | if (res > 0 && !show_memory_breakpoints) | |
1632 | breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res); | |
1633 | } | |
1634 | else | |
1635 | { | |
1636 | void *buf; | |
1637 | struct cleanup *old_chain; | |
1638 | ||
1639 | buf = xmalloc (len); | |
1640 | old_chain = make_cleanup (xfree, buf); | |
1641 | memcpy (buf, writebuf, len); | |
1642 | ||
1643 | breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len); | |
1644 | res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len); | |
1645 | ||
1646 | do_cleanups (old_chain); | |
1647 | } | |
1648 | ||
1649 | return res; | |
1650 | } | |
1651 | ||
8defab1a DJ |
1652 | static void |
1653 | restore_show_memory_breakpoints (void *arg) | |
1654 | { | |
1655 | show_memory_breakpoints = (uintptr_t) arg; | |
1656 | } | |
1657 | ||
1658 | struct cleanup * | |
1659 | make_show_memory_breakpoints_cleanup (int show) | |
1660 | { | |
1661 | int current = show_memory_breakpoints; | |
8defab1a | 1662 | |
5d502164 | 1663 | show_memory_breakpoints = show; |
8defab1a DJ |
1664 | return make_cleanup (restore_show_memory_breakpoints, |
1665 | (void *) (uintptr_t) current); | |
1666 | } | |
1667 | ||
7f79c47e DE |
1668 | /* For docs see target.h, to_xfer_partial. */ |
1669 | ||
27394598 AC |
1670 | static LONGEST |
1671 | target_xfer_partial (struct target_ops *ops, | |
1672 | enum target_object object, const char *annex, | |
1673 | void *readbuf, const void *writebuf, | |
1674 | ULONGEST offset, LONGEST len) | |
1675 | { | |
1676 | LONGEST retval; | |
1677 | ||
1678 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1679 | |
d914c394 SS |
1680 | if (writebuf && !may_write_memory) |
1681 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1682 | core_addr_to_string_nz (offset), plongest (len)); | |
1683 | ||
cf7a04e8 DJ |
1684 | /* If this is a memory transfer, let the memory-specific code |
1685 | have a look at it instead. Memory transfers are more | |
1686 | complicated. */ | |
4e5d721f DE |
1687 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY) |
1688 | retval = memory_xfer_partial (ops, object, readbuf, | |
1689 | writebuf, offset, len); | |
cf7a04e8 DJ |
1690 | else |
1691 | { | |
1692 | enum target_object raw_object = object; | |
1693 | ||
1694 | /* If this is a raw memory transfer, request the normal | |
1695 | memory object from other layers. */ | |
1696 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1697 | raw_object = TARGET_OBJECT_MEMORY; | |
1698 | ||
1699 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1700 | writebuf, offset, len); | |
1701 | } | |
1702 | ||
27394598 AC |
1703 | if (targetdebug) |
1704 | { | |
1705 | const unsigned char *myaddr = NULL; | |
1706 | ||
1707 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
1708 | "%s:target_xfer_partial " |
1709 | "(%d, %s, %s, %s, %s, %s) = %s", | |
27394598 AC |
1710 | ops->to_shortname, |
1711 | (int) object, | |
1712 | (annex ? annex : "(null)"), | |
53b71562 JB |
1713 | host_address_to_string (readbuf), |
1714 | host_address_to_string (writebuf), | |
0b1553bc UW |
1715 | core_addr_to_string_nz (offset), |
1716 | plongest (len), plongest (retval)); | |
27394598 AC |
1717 | |
1718 | if (readbuf) | |
1719 | myaddr = readbuf; | |
1720 | if (writebuf) | |
1721 | myaddr = writebuf; | |
1722 | if (retval > 0 && myaddr != NULL) | |
1723 | { | |
1724 | int i; | |
2bc416ba | 1725 | |
27394598 AC |
1726 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1727 | for (i = 0; i < retval; i++) | |
1728 | { | |
53b71562 | 1729 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1730 | { |
1731 | if (targetdebug < 2 && i > 0) | |
1732 | { | |
1733 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1734 | break; | |
1735 | } | |
1736 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1737 | } | |
2bc416ba | 1738 | |
27394598 AC |
1739 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1740 | } | |
1741 | } | |
2bc416ba | 1742 | |
27394598 AC |
1743 | fputc_unfiltered ('\n', gdb_stdlog); |
1744 | } | |
1745 | return retval; | |
1746 | } | |
1747 | ||
c906108c SS |
1748 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1749 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1750 | if any error occurs. | |
1751 | ||
1752 | If an error occurs, no guarantee is made about the contents of the data at | |
1753 | MYADDR. In particular, the caller should not depend upon partial reads | |
1754 | filling the buffer with good data. There is no way for the caller to know | |
1755 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1756 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1757 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1758 | |
1759 | int | |
fc1a4b47 | 1760 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 1761 | { |
c35b1492 PA |
1762 | /* Dispatch to the topmost target, not the flattened current_target. |
1763 | Memory accesses check target->to_has_(all_)memory, and the | |
1764 | flattened target doesn't inherit those. */ | |
1765 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1766 | myaddr, memaddr, len) == len) |
1767 | return 0; | |
0779438d | 1768 | else |
cf7a04e8 | 1769 | return EIO; |
c906108c SS |
1770 | } |
1771 | ||
4e5d721f DE |
1772 | /* Like target_read_memory, but specify explicitly that this is a read from |
1773 | the target's stack. This may trigger different cache behavior. */ | |
1774 | ||
1775 | int | |
1776 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, int len) | |
1777 | { | |
1778 | /* Dispatch to the topmost target, not the flattened current_target. | |
1779 | Memory accesses check target->to_has_(all_)memory, and the | |
1780 | flattened target doesn't inherit those. */ | |
1781 | ||
1782 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, | |
1783 | myaddr, memaddr, len) == len) | |
1784 | return 0; | |
1785 | else | |
1786 | return EIO; | |
1787 | } | |
1788 | ||
7f79c47e DE |
1789 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
1790 | Returns either 0 for success or an errno value if any error occurs. | |
1791 | If an error occurs, no guarantee is made about how much data got written. | |
1792 | Callers that can deal with partial writes should call target_write. */ | |
1793 | ||
c906108c | 1794 | int |
fc1a4b47 | 1795 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1796 | { |
c35b1492 PA |
1797 | /* Dispatch to the topmost target, not the flattened current_target. |
1798 | Memory accesses check target->to_has_(all_)memory, and the | |
1799 | flattened target doesn't inherit those. */ | |
1800 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1801 | myaddr, memaddr, len) == len) |
1802 | return 0; | |
0779438d | 1803 | else |
cf7a04e8 | 1804 | return EIO; |
c906108c | 1805 | } |
c5aa993b | 1806 | |
f0ba3972 PA |
1807 | /* Write LEN bytes from MYADDR to target raw memory at address |
1808 | MEMADDR. Returns either 0 for success or an errno value if any | |
1809 | error occurs. If an error occurs, no guarantee is made about how | |
1810 | much data got written. Callers that can deal with partial writes | |
1811 | should call target_write. */ | |
1812 | ||
1813 | int | |
1814 | target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) | |
1815 | { | |
1816 | /* Dispatch to the topmost target, not the flattened current_target. | |
1817 | Memory accesses check target->to_has_(all_)memory, and the | |
1818 | flattened target doesn't inherit those. */ | |
1819 | if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL, | |
1820 | myaddr, memaddr, len) == len) | |
1821 | return 0; | |
1822 | else | |
1823 | return EIO; | |
1824 | } | |
1825 | ||
fd79ecee DJ |
1826 | /* Fetch the target's memory map. */ |
1827 | ||
1828 | VEC(mem_region_s) * | |
1829 | target_memory_map (void) | |
1830 | { | |
1831 | VEC(mem_region_s) *result; | |
1832 | struct mem_region *last_one, *this_one; | |
1833 | int ix; | |
1834 | struct target_ops *t; | |
1835 | ||
1836 | if (targetdebug) | |
1837 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1838 | ||
1839 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1840 | if (t->to_memory_map != NULL) | |
1841 | break; | |
1842 | ||
1843 | if (t == NULL) | |
1844 | return NULL; | |
1845 | ||
1846 | result = t->to_memory_map (t); | |
1847 | if (result == NULL) | |
1848 | return NULL; | |
1849 | ||
1850 | qsort (VEC_address (mem_region_s, result), | |
1851 | VEC_length (mem_region_s, result), | |
1852 | sizeof (struct mem_region), mem_region_cmp); | |
1853 | ||
1854 | /* Check that regions do not overlap. Simultaneously assign | |
1855 | a numbering for the "mem" commands to use to refer to | |
1856 | each region. */ | |
1857 | last_one = NULL; | |
1858 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1859 | { | |
1860 | this_one->number = ix; | |
1861 | ||
1862 | if (last_one && last_one->hi > this_one->lo) | |
1863 | { | |
1864 | warning (_("Overlapping regions in memory map: ignoring")); | |
1865 | VEC_free (mem_region_s, result); | |
1866 | return NULL; | |
1867 | } | |
1868 | last_one = this_one; | |
1869 | } | |
1870 | ||
1871 | return result; | |
1872 | } | |
1873 | ||
a76d924d DJ |
1874 | void |
1875 | target_flash_erase (ULONGEST address, LONGEST length) | |
1876 | { | |
1877 | struct target_ops *t; | |
1878 | ||
1879 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1880 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1881 | { |
1882 | if (targetdebug) | |
1883 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1884 | hex_string (address), phex (length, 0)); | |
1885 | t->to_flash_erase (t, address, length); | |
1886 | return; | |
1887 | } | |
a76d924d DJ |
1888 | |
1889 | tcomplain (); | |
1890 | } | |
1891 | ||
1892 | void | |
1893 | target_flash_done (void) | |
1894 | { | |
1895 | struct target_ops *t; | |
1896 | ||
1897 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1898 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1899 | { |
1900 | if (targetdebug) | |
1901 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1902 | t->to_flash_done (t); | |
1903 | return; | |
1904 | } | |
a76d924d DJ |
1905 | |
1906 | tcomplain (); | |
1907 | } | |
1908 | ||
920d2a44 AC |
1909 | static void |
1910 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1911 | struct cmd_list_element *c, const char *value) | |
1912 | { | |
3e43a32a MS |
1913 | fprintf_filtered (file, |
1914 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1915 | value); |
1916 | } | |
3a11626d | 1917 | |
1e3ff5ad AC |
1918 | /* More generic transfers. */ |
1919 | ||
0088c768 | 1920 | static LONGEST |
8aa91c1e | 1921 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1922 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1923 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1924 | { |
1925 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1926 | && ops->deprecated_xfer_memory != NULL) |
1927 | /* If available, fall back to the target's | |
1928 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1929 | { |
4b8a223f | 1930 | int xfered = -1; |
5d502164 | 1931 | |
0088c768 | 1932 | errno = 0; |
4b8a223f AC |
1933 | if (writebuf != NULL) |
1934 | { | |
1935 | void *buffer = xmalloc (len); | |
1936 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1937 | |
4b8a223f | 1938 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1939 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1940 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1941 | do_cleanups (cleanup); |
1942 | } | |
1943 | if (readbuf != NULL) | |
244e85c8 MS |
1944 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1945 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1946 | if (xfered > 0) |
1947 | return xfered; | |
1948 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1949 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1950 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1951 | return 0; |
1952 | else | |
1953 | return -1; | |
1954 | } | |
1955 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1956 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1957 | readbuf, writebuf, offset, len); | |
1958 | else | |
1959 | return -1; | |
1960 | } | |
1961 | ||
1962 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1963 | it does not need to handle memory specially; it just passes all | |
1964 | requests down the stack. */ | |
1965 | ||
1966 | static LONGEST | |
1967 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
1968 | const char *annex, gdb_byte *readbuf, | |
1969 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1970 | { | |
1971 | if (ops->beneath != NULL) | |
1972 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1973 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1974 | else |
1975 | return -1; | |
1976 | } | |
1977 | ||
7f79c47e | 1978 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1979 | |
13547ab6 | 1980 | static LONGEST |
1e3ff5ad AC |
1981 | target_read_partial (struct target_ops *ops, |
1982 | enum target_object object, | |
1b0ba102 | 1983 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1984 | ULONGEST offset, LONGEST len) |
1985 | { | |
27394598 | 1986 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1987 | } |
1988 | ||
13547ab6 | 1989 | static LONGEST |
1e3ff5ad AC |
1990 | target_write_partial (struct target_ops *ops, |
1991 | enum target_object object, | |
1b0ba102 | 1992 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1993 | ULONGEST offset, LONGEST len) |
1994 | { | |
27394598 | 1995 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1996 | } |
1997 | ||
1998 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1999 | |
2000 | /* For docs on target_read see target.h. */ | |
2001 | ||
1e3ff5ad AC |
2002 | LONGEST |
2003 | target_read (struct target_ops *ops, | |
2004 | enum target_object object, | |
1b0ba102 | 2005 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
2006 | ULONGEST offset, LONGEST len) |
2007 | { | |
2008 | LONGEST xfered = 0; | |
5d502164 | 2009 | |
1e3ff5ad AC |
2010 | while (xfered < len) |
2011 | { | |
0088c768 | 2012 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 2013 | (gdb_byte *) buf + xfered, |
0088c768 | 2014 | offset + xfered, len - xfered); |
5d502164 | 2015 | |
1e3ff5ad | 2016 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
2017 | if (xfer == 0) |
2018 | return xfered; | |
2019 | if (xfer < 0) | |
0088c768 | 2020 | return -1; |
1e3ff5ad AC |
2021 | xfered += xfer; |
2022 | QUIT; | |
2023 | } | |
2024 | return len; | |
2025 | } | |
2026 | ||
f1a507a1 JB |
2027 | /* Assuming that the entire [begin, end) range of memory cannot be |
2028 | read, try to read whatever subrange is possible to read. | |
2029 | ||
2030 | The function returns, in RESULT, either zero or one memory block. | |
2031 | If there's a readable subrange at the beginning, it is completely | |
2032 | read and returned. Any further readable subrange will not be read. | |
2033 | Otherwise, if there's a readable subrange at the end, it will be | |
2034 | completely read and returned. Any readable subranges before it | |
2035 | (obviously, not starting at the beginning), will be ignored. In | |
2036 | other cases -- either no readable subrange, or readable subrange(s) | |
2037 | that is neither at the beginning, or end, nothing is returned. | |
2038 | ||
2039 | The purpose of this function is to handle a read across a boundary | |
2040 | of accessible memory in a case when memory map is not available. | |
2041 | The above restrictions are fine for this case, but will give | |
2042 | incorrect results if the memory is 'patchy'. However, supporting | |
2043 | 'patchy' memory would require trying to read every single byte, | |
2044 | and it seems unacceptable solution. Explicit memory map is | |
2045 | recommended for this case -- and target_read_memory_robust will | |
2046 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
2047 | |
2048 | static void | |
3e43a32a MS |
2049 | read_whatever_is_readable (struct target_ops *ops, |
2050 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 2051 | VEC(memory_read_result_s) **result) |
d5086790 | 2052 | { |
f1a507a1 | 2053 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
2054 | ULONGEST current_begin = begin; |
2055 | ULONGEST current_end = end; | |
2056 | int forward; | |
2057 | memory_read_result_s r; | |
2058 | ||
2059 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
2060 | if (end - begin <= 1) | |
13b3fd9b MS |
2061 | { |
2062 | xfree (buf); | |
2063 | return; | |
2064 | } | |
8dedea02 VP |
2065 | |
2066 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 2067 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
2068 | at the boundary of accessible region. */ |
2069 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2070 | buf, begin, 1) == 1) | |
2071 | { | |
2072 | forward = 1; | |
2073 | ++current_begin; | |
2074 | } | |
2075 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
2076 | buf + (end-begin) - 1, end - 1, 1) == 1) | |
2077 | { | |
2078 | forward = 0; | |
2079 | --current_end; | |
2080 | } | |
2081 | else | |
2082 | { | |
13b3fd9b | 2083 | xfree (buf); |
8dedea02 VP |
2084 | return; |
2085 | } | |
2086 | ||
2087 | /* Loop invariant is that the [current_begin, current_end) was previously | |
2088 | found to be not readable as a whole. | |
2089 | ||
2090 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
2091 | so there's no point trying further. */ | |
2092 | while (current_end - current_begin > 1) | |
2093 | { | |
2094 | ULONGEST first_half_begin, first_half_end; | |
2095 | ULONGEST second_half_begin, second_half_end; | |
2096 | LONGEST xfer; | |
8dedea02 | 2097 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 2098 | |
8dedea02 VP |
2099 | if (forward) |
2100 | { | |
2101 | first_half_begin = current_begin; | |
2102 | first_half_end = middle; | |
2103 | second_half_begin = middle; | |
2104 | second_half_end = current_end; | |
2105 | } | |
2106 | else | |
2107 | { | |
2108 | first_half_begin = middle; | |
2109 | first_half_end = current_end; | |
2110 | second_half_begin = current_begin; | |
2111 | second_half_end = middle; | |
2112 | } | |
2113 | ||
2114 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2115 | buf + (first_half_begin - begin), | |
2116 | first_half_begin, | |
2117 | first_half_end - first_half_begin); | |
2118 | ||
2119 | if (xfer == first_half_end - first_half_begin) | |
2120 | { | |
c378eb4e | 2121 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2122 | other half. */ |
8dedea02 VP |
2123 | current_begin = second_half_begin; |
2124 | current_end = second_half_end; | |
2125 | } | |
2126 | else | |
2127 | { | |
c378eb4e MS |
2128 | /* This half is not readable. Because we've tried one byte, we |
2129 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2130 | iteration to divide again and try to read. |
2131 | ||
2132 | We don't handle the other half, because this function only tries | |
2133 | to read a single readable subrange. */ | |
2134 | current_begin = first_half_begin; | |
2135 | current_end = first_half_end; | |
2136 | } | |
2137 | } | |
2138 | ||
2139 | if (forward) | |
2140 | { | |
2141 | /* The [begin, current_begin) range has been read. */ | |
2142 | r.begin = begin; | |
2143 | r.end = current_begin; | |
2144 | r.data = buf; | |
2145 | } | |
2146 | else | |
2147 | { | |
2148 | /* The [current_end, end) range has been read. */ | |
2149 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2150 | |
8dedea02 VP |
2151 | r.data = xmalloc (rlen); |
2152 | memcpy (r.data, buf + current_end - begin, rlen); | |
2153 | r.begin = current_end; | |
2154 | r.end = end; | |
2155 | xfree (buf); | |
2156 | } | |
2157 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2158 | } | |
2159 | ||
2160 | void | |
2161 | free_memory_read_result_vector (void *x) | |
2162 | { | |
2163 | VEC(memory_read_result_s) *v = x; | |
2164 | memory_read_result_s *current; | |
2165 | int ix; | |
2166 | ||
2167 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2168 | { | |
2169 | xfree (current->data); | |
2170 | } | |
2171 | VEC_free (memory_read_result_s, v); | |
2172 | } | |
2173 | ||
2174 | VEC(memory_read_result_s) * | |
2175 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2176 | { | |
2177 | VEC(memory_read_result_s) *result = 0; | |
2178 | ||
2179 | LONGEST xfered = 0; | |
d5086790 VP |
2180 | while (xfered < len) |
2181 | { | |
8dedea02 VP |
2182 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2183 | LONGEST rlen; | |
5d502164 | 2184 | |
8dedea02 VP |
2185 | /* If there is no explicit region, a fake one should be created. */ |
2186 | gdb_assert (region); | |
2187 | ||
2188 | if (region->hi == 0) | |
2189 | rlen = len - xfered; | |
2190 | else | |
2191 | rlen = region->hi - offset; | |
2192 | ||
2193 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2194 | { |
c378eb4e | 2195 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2196 | if the region is explicitly marked inaccessible, or |
2197 | 'inaccessible-by-default' is in effect. */ | |
2198 | xfered += rlen; | |
2199 | } | |
2200 | else | |
2201 | { | |
2202 | LONGEST to_read = min (len - xfered, rlen); | |
2203 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2204 | ||
2205 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2206 | (gdb_byte *) buffer, | |
2207 | offset + xfered, to_read); | |
2208 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2209 | if (xfer <= 0) |
d5086790 | 2210 | { |
c378eb4e | 2211 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2212 | some subrange. */ |
2213 | xfree (buffer); | |
3e43a32a MS |
2214 | read_whatever_is_readable (ops, offset + xfered, |
2215 | offset + xfered + to_read, &result); | |
8dedea02 | 2216 | xfered += to_read; |
d5086790 | 2217 | } |
8dedea02 VP |
2218 | else |
2219 | { | |
2220 | struct memory_read_result r; | |
2221 | r.data = buffer; | |
2222 | r.begin = offset + xfered; | |
2223 | r.end = r.begin + xfer; | |
2224 | VEC_safe_push (memory_read_result_s, result, &r); | |
2225 | xfered += xfer; | |
2226 | } | |
2227 | QUIT; | |
d5086790 | 2228 | } |
d5086790 | 2229 | } |
8dedea02 | 2230 | return result; |
d5086790 VP |
2231 | } |
2232 | ||
8dedea02 | 2233 | |
cf7a04e8 DJ |
2234 | /* An alternative to target_write with progress callbacks. */ |
2235 | ||
1e3ff5ad | 2236 | LONGEST |
cf7a04e8 DJ |
2237 | target_write_with_progress (struct target_ops *ops, |
2238 | enum target_object object, | |
2239 | const char *annex, const gdb_byte *buf, | |
2240 | ULONGEST offset, LONGEST len, | |
2241 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2242 | { |
2243 | LONGEST xfered = 0; | |
a76d924d DJ |
2244 | |
2245 | /* Give the progress callback a chance to set up. */ | |
2246 | if (progress) | |
2247 | (*progress) (0, baton); | |
2248 | ||
1e3ff5ad AC |
2249 | while (xfered < len) |
2250 | { | |
2251 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 2252 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 2253 | offset + xfered, len - xfered); |
cf7a04e8 | 2254 | |
13547ab6 DJ |
2255 | if (xfer == 0) |
2256 | return xfered; | |
2257 | if (xfer < 0) | |
0088c768 | 2258 | return -1; |
cf7a04e8 DJ |
2259 | |
2260 | if (progress) | |
2261 | (*progress) (xfer, baton); | |
2262 | ||
1e3ff5ad AC |
2263 | xfered += xfer; |
2264 | QUIT; | |
2265 | } | |
2266 | return len; | |
2267 | } | |
2268 | ||
7f79c47e DE |
2269 | /* For docs on target_write see target.h. */ |
2270 | ||
cf7a04e8 DJ |
2271 | LONGEST |
2272 | target_write (struct target_ops *ops, | |
2273 | enum target_object object, | |
2274 | const char *annex, const gdb_byte *buf, | |
2275 | ULONGEST offset, LONGEST len) | |
2276 | { | |
2277 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2278 | NULL, NULL); | |
2279 | } | |
2280 | ||
159f81f3 DJ |
2281 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2282 | the size of the transferred data. PADDING additional bytes are | |
2283 | available in *BUF_P. This is a helper function for | |
2284 | target_read_alloc; see the declaration of that function for more | |
2285 | information. */ | |
13547ab6 | 2286 | |
159f81f3 DJ |
2287 | static LONGEST |
2288 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2289 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2290 | { |
2291 | size_t buf_alloc, buf_pos; | |
2292 | gdb_byte *buf; | |
2293 | LONGEST n; | |
2294 | ||
2295 | /* This function does not have a length parameter; it reads the | |
2296 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2297 | from one target and partly from another (in a different stratum, | |
2298 | e.g. a core file and an executable). Both reasons make it | |
2299 | unsuitable for reading memory. */ | |
2300 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2301 | ||
2302 | /* Start by reading up to 4K at a time. The target will throttle | |
2303 | this number down if necessary. */ | |
2304 | buf_alloc = 4096; | |
2305 | buf = xmalloc (buf_alloc); | |
2306 | buf_pos = 0; | |
2307 | while (1) | |
2308 | { | |
2309 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 2310 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
2311 | if (n < 0) |
2312 | { | |
2313 | /* An error occurred. */ | |
2314 | xfree (buf); | |
2315 | return -1; | |
2316 | } | |
2317 | else if (n == 0) | |
2318 | { | |
2319 | /* Read all there was. */ | |
2320 | if (buf_pos == 0) | |
2321 | xfree (buf); | |
2322 | else | |
2323 | *buf_p = buf; | |
2324 | return buf_pos; | |
2325 | } | |
2326 | ||
2327 | buf_pos += n; | |
2328 | ||
2329 | /* If the buffer is filling up, expand it. */ | |
2330 | if (buf_alloc < buf_pos * 2) | |
2331 | { | |
2332 | buf_alloc *= 2; | |
2333 | buf = xrealloc (buf, buf_alloc); | |
2334 | } | |
2335 | ||
2336 | QUIT; | |
2337 | } | |
2338 | } | |
2339 | ||
159f81f3 DJ |
2340 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2341 | the size of the transferred data. See the declaration in "target.h" | |
2342 | function for more information about the return value. */ | |
2343 | ||
2344 | LONGEST | |
2345 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2346 | const char *annex, gdb_byte **buf_p) | |
2347 | { | |
2348 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2349 | } | |
2350 | ||
2351 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2352 | returned as a string, allocated using xmalloc. If an error occurs | |
2353 | or the transfer is unsupported, NULL is returned. Empty objects | |
2354 | are returned as allocated but empty strings. A warning is issued | |
2355 | if the result contains any embedded NUL bytes. */ | |
2356 | ||
2357 | char * | |
2358 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2359 | const char *annex) | |
2360 | { | |
2361 | gdb_byte *buffer; | |
7313baad | 2362 | LONGEST i, transferred; |
159f81f3 DJ |
2363 | |
2364 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); | |
2365 | ||
2366 | if (transferred < 0) | |
2367 | return NULL; | |
2368 | ||
2369 | if (transferred == 0) | |
2370 | return xstrdup (""); | |
2371 | ||
2372 | buffer[transferred] = 0; | |
7313baad UW |
2373 | |
2374 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
2375 | for (i = strlen (buffer); i < transferred; i++) | |
2376 | if (buffer[i] != 0) | |
2377 | { | |
2378 | warning (_("target object %d, annex %s, " | |
2379 | "contained unexpected null characters"), | |
2380 | (int) object, annex ? annex : "(none)"); | |
2381 | break; | |
2382 | } | |
159f81f3 DJ |
2383 | |
2384 | return (char *) buffer; | |
2385 | } | |
2386 | ||
b6591e8b AC |
2387 | /* Memory transfer methods. */ |
2388 | ||
2389 | void | |
1b0ba102 | 2390 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2391 | LONGEST len) |
2392 | { | |
07b82ea5 PA |
2393 | /* This method is used to read from an alternate, non-current |
2394 | target. This read must bypass the overlay support (as symbols | |
2395 | don't match this target), and GDB's internal cache (wrong cache | |
2396 | for this target). */ | |
2397 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b AC |
2398 | != len) |
2399 | memory_error (EIO, addr); | |
2400 | } | |
2401 | ||
2402 | ULONGEST | |
5d502164 MS |
2403 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2404 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2405 | { |
f6519ebc | 2406 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2407 | |
2408 | gdb_assert (len <= sizeof (buf)); | |
2409 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2410 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2411 | } |
2412 | ||
d914c394 SS |
2413 | int |
2414 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2415 | struct bp_target_info *bp_tgt) | |
2416 | { | |
2417 | if (!may_insert_breakpoints) | |
2418 | { | |
2419 | warning (_("May not insert breakpoints")); | |
2420 | return 1; | |
2421 | } | |
2422 | ||
2423 | return (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt); | |
2424 | } | |
2425 | ||
2426 | int | |
2427 | target_remove_breakpoint (struct gdbarch *gdbarch, | |
2428 | struct bp_target_info *bp_tgt) | |
2429 | { | |
2430 | /* This is kind of a weird case to handle, but the permission might | |
2431 | have been changed after breakpoints were inserted - in which case | |
2432 | we should just take the user literally and assume that any | |
2433 | breakpoints should be left in place. */ | |
2434 | if (!may_insert_breakpoints) | |
2435 | { | |
2436 | warning (_("May not remove breakpoints")); | |
2437 | return 1; | |
2438 | } | |
2439 | ||
2440 | return (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt); | |
2441 | } | |
2442 | ||
c906108c | 2443 | static void |
fba45db2 | 2444 | target_info (char *args, int from_tty) |
c906108c SS |
2445 | { |
2446 | struct target_ops *t; | |
c906108c | 2447 | int has_all_mem = 0; |
c5aa993b | 2448 | |
c906108c | 2449 | if (symfile_objfile != NULL) |
a3f17187 | 2450 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 2451 | |
258b763a | 2452 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2453 | { |
c35b1492 | 2454 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2455 | continue; |
2456 | ||
c5aa993b | 2457 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2458 | continue; |
2459 | if (has_all_mem) | |
3e43a32a MS |
2460 | printf_unfiltered (_("\tWhile running this, " |
2461 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2462 | printf_unfiltered ("%s:\n", t->to_longname); |
2463 | (t->to_files_info) (t); | |
c35b1492 | 2464 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2465 | } |
2466 | } | |
2467 | ||
fd79ecee DJ |
2468 | /* This function is called before any new inferior is created, e.g. |
2469 | by running a program, attaching, or connecting to a target. | |
2470 | It cleans up any state from previous invocations which might | |
2471 | change between runs. This is a subset of what target_preopen | |
2472 | resets (things which might change between targets). */ | |
2473 | ||
2474 | void | |
2475 | target_pre_inferior (int from_tty) | |
2476 | { | |
c378eb4e | 2477 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2478 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2479 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2480 | to reproduce: |
2481 | ||
2482 | bash$ ./foo& | |
2483 | [1] 4711 | |
2484 | bash$ ./foo& | |
2485 | [1] 4712 | |
2486 | bash$ gdb ./foo | |
2487 | [...] | |
2488 | (gdb) attach 4711 | |
2489 | (gdb) detach | |
2490 | (gdb) attach 4712 | |
2491 | Cannot access memory at address 0xdeadbeef | |
2492 | */ | |
b9db4ced | 2493 | |
50c71eaf PA |
2494 | /* In some OSs, the shared library list is the same/global/shared |
2495 | across inferiors. If code is shared between processes, so are | |
2496 | memory regions and features. */ | |
2497 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2498 | { | |
2499 | no_shared_libraries (NULL, from_tty); | |
2500 | ||
2501 | invalidate_target_mem_regions (); | |
424163ea | 2502 | |
50c71eaf PA |
2503 | target_clear_description (); |
2504 | } | |
8ffcbaaf YQ |
2505 | |
2506 | agent_capability_invalidate (); | |
fd79ecee DJ |
2507 | } |
2508 | ||
b8fa0bfa PA |
2509 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2510 | inferior. */ | |
2511 | ||
2512 | static int | |
2513 | dispose_inferior (struct inferior *inf, void *args) | |
2514 | { | |
2515 | struct thread_info *thread; | |
2516 | ||
2517 | thread = any_thread_of_process (inf->pid); | |
2518 | if (thread) | |
2519 | { | |
2520 | switch_to_thread (thread->ptid); | |
2521 | ||
2522 | /* Core inferiors actually should be detached, not killed. */ | |
2523 | if (target_has_execution) | |
2524 | target_kill (); | |
2525 | else | |
2526 | target_detach (NULL, 0); | |
2527 | } | |
2528 | ||
2529 | return 0; | |
2530 | } | |
2531 | ||
c906108c SS |
2532 | /* This is to be called by the open routine before it does |
2533 | anything. */ | |
2534 | ||
2535 | void | |
fba45db2 | 2536 | target_preopen (int from_tty) |
c906108c | 2537 | { |
c5aa993b | 2538 | dont_repeat (); |
c906108c | 2539 | |
b8fa0bfa | 2540 | if (have_inferiors ()) |
c5aa993b | 2541 | { |
adf40b2e | 2542 | if (!from_tty |
b8fa0bfa PA |
2543 | || !have_live_inferiors () |
2544 | || query (_("A program is being debugged already. Kill it? "))) | |
2545 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2546 | else |
8a3fe4f8 | 2547 | error (_("Program not killed.")); |
c906108c SS |
2548 | } |
2549 | ||
2550 | /* Calling target_kill may remove the target from the stack. But if | |
2551 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2552 | /* Leave the exec target, though. The user may be switching from a |
2553 | live process to a core of the same program. */ | |
2554 | pop_all_targets_above (file_stratum, 0); | |
fd79ecee DJ |
2555 | |
2556 | target_pre_inferior (from_tty); | |
c906108c SS |
2557 | } |
2558 | ||
2559 | /* Detach a target after doing deferred register stores. */ | |
2560 | ||
2561 | void | |
fba45db2 | 2562 | target_detach (char *args, int from_tty) |
c906108c | 2563 | { |
136d6dae VP |
2564 | struct target_ops* t; |
2565 | ||
2567c7d9 | 2566 | if (gdbarch_has_global_breakpoints (target_gdbarch)) |
50c71eaf PA |
2567 | /* Don't remove global breakpoints here. They're removed on |
2568 | disconnection from the target. */ | |
2569 | ; | |
2570 | else | |
2571 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2572 | them before detaching. */ | |
6c95b8df | 2573 | remove_breakpoints_pid (PIDGET (inferior_ptid)); |
74960c60 | 2574 | |
24291992 PA |
2575 | prepare_for_detach (); |
2576 | ||
136d6dae VP |
2577 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2578 | { | |
2579 | if (t->to_detach != NULL) | |
2580 | { | |
2581 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2582 | if (targetdebug) |
2583 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2584 | args, from_tty); | |
136d6dae VP |
2585 | return; |
2586 | } | |
2587 | } | |
2588 | ||
9b20d036 | 2589 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2590 | } |
2591 | ||
6ad8ae5c DJ |
2592 | void |
2593 | target_disconnect (char *args, int from_tty) | |
2594 | { | |
597320e7 DJ |
2595 | struct target_ops *t; |
2596 | ||
50c71eaf PA |
2597 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2598 | are global across processes, we have to remove them before | |
2599 | disconnecting. */ | |
74960c60 VP |
2600 | remove_breakpoints (); |
2601 | ||
597320e7 DJ |
2602 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2603 | if (t->to_disconnect != NULL) | |
2604 | { | |
2605 | if (targetdebug) | |
2606 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2607 | args, from_tty); | |
2608 | t->to_disconnect (t, args, from_tty); | |
2609 | return; | |
2610 | } | |
2611 | ||
2612 | tcomplain (); | |
6ad8ae5c DJ |
2613 | } |
2614 | ||
117de6a9 | 2615 | ptid_t |
47608cb1 | 2616 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2617 | { |
2618 | struct target_ops *t; | |
2619 | ||
2620 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2621 | { | |
2622 | if (t->to_wait != NULL) | |
2623 | { | |
47608cb1 | 2624 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
2625 | |
2626 | if (targetdebug) | |
2627 | { | |
2628 | char *status_string; | |
2629 | ||
2630 | status_string = target_waitstatus_to_string (status); | |
2631 | fprintf_unfiltered (gdb_stdlog, | |
2632 | "target_wait (%d, status) = %d, %s\n", | |
2633 | PIDGET (ptid), PIDGET (retval), | |
2634 | status_string); | |
2635 | xfree (status_string); | |
2636 | } | |
2637 | ||
2638 | return retval; | |
2639 | } | |
2640 | } | |
2641 | ||
2642 | noprocess (); | |
2643 | } | |
2644 | ||
2645 | char * | |
2646 | target_pid_to_str (ptid_t ptid) | |
2647 | { | |
2648 | struct target_ops *t; | |
2649 | ||
2650 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2651 | { | |
2652 | if (t->to_pid_to_str != NULL) | |
2653 | return (*t->to_pid_to_str) (t, ptid); | |
2654 | } | |
2655 | ||
2656 | return normal_pid_to_str (ptid); | |
2657 | } | |
2658 | ||
4694da01 TT |
2659 | char * |
2660 | target_thread_name (struct thread_info *info) | |
2661 | { | |
2662 | struct target_ops *t; | |
2663 | ||
2664 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2665 | { | |
2666 | if (t->to_thread_name != NULL) | |
2667 | return (*t->to_thread_name) (info); | |
2668 | } | |
2669 | ||
2670 | return NULL; | |
2671 | } | |
2672 | ||
e1ac3328 VP |
2673 | void |
2674 | target_resume (ptid_t ptid, int step, enum target_signal signal) | |
2675 | { | |
28439f5e PA |
2676 | struct target_ops *t; |
2677 | ||
4e5d721f | 2678 | target_dcache_invalidate (); |
28439f5e PA |
2679 | |
2680 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2681 | { | |
2682 | if (t->to_resume != NULL) | |
2683 | { | |
2684 | t->to_resume (t, ptid, step, signal); | |
2685 | if (targetdebug) | |
2686 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2687 | PIDGET (ptid), | |
2688 | step ? "step" : "continue", | |
2689 | target_signal_to_name (signal)); | |
2690 | ||
e66408ed | 2691 | registers_changed_ptid (ptid); |
28439f5e PA |
2692 | set_executing (ptid, 1); |
2693 | set_running (ptid, 1); | |
edb3359d | 2694 | clear_inline_frame_state (ptid); |
28439f5e PA |
2695 | return; |
2696 | } | |
2697 | } | |
2698 | ||
2699 | noprocess (); | |
e1ac3328 | 2700 | } |
2455069d UW |
2701 | |
2702 | void | |
2703 | target_pass_signals (int numsigs, unsigned char *pass_signals) | |
2704 | { | |
2705 | struct target_ops *t; | |
2706 | ||
2707 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2708 | { | |
2709 | if (t->to_pass_signals != NULL) | |
2710 | { | |
2711 | if (targetdebug) | |
2712 | { | |
2713 | int i; | |
2714 | ||
2715 | fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {", | |
2716 | numsigs); | |
2717 | ||
2718 | for (i = 0; i < numsigs; i++) | |
2719 | if (pass_signals[i]) | |
2720 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2721 | target_signal_to_name (i)); | |
2722 | ||
2723 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2724 | } | |
2725 | ||
2726 | (*t->to_pass_signals) (numsigs, pass_signals); | |
2727 | return; | |
2728 | } | |
2729 | } | |
2730 | } | |
2731 | ||
9b224c5e PA |
2732 | void |
2733 | target_program_signals (int numsigs, unsigned char *program_signals) | |
2734 | { | |
2735 | struct target_ops *t; | |
2736 | ||
2737 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2738 | { | |
2739 | if (t->to_program_signals != NULL) | |
2740 | { | |
2741 | if (targetdebug) | |
2742 | { | |
2743 | int i; | |
2744 | ||
2745 | fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {", | |
2746 | numsigs); | |
2747 | ||
2748 | for (i = 0; i < numsigs; i++) | |
2749 | if (program_signals[i]) | |
2750 | fprintf_unfiltered (gdb_stdlog, " %s", | |
2751 | target_signal_to_name (i)); | |
2752 | ||
2753 | fprintf_unfiltered (gdb_stdlog, " })\n"); | |
2754 | } | |
2755 | ||
2756 | (*t->to_program_signals) (numsigs, program_signals); | |
2757 | return; | |
2758 | } | |
2759 | } | |
2760 | } | |
2761 | ||
ee057212 DJ |
2762 | /* Look through the list of possible targets for a target that can |
2763 | follow forks. */ | |
2764 | ||
2765 | int | |
2766 | target_follow_fork (int follow_child) | |
2767 | { | |
2768 | struct target_ops *t; | |
2769 | ||
2770 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2771 | { | |
2772 | if (t->to_follow_fork != NULL) | |
2773 | { | |
2774 | int retval = t->to_follow_fork (t, follow_child); | |
5d502164 | 2775 | |
ee057212 DJ |
2776 | if (targetdebug) |
2777 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
2778 | follow_child, retval); | |
2779 | return retval; | |
2780 | } | |
2781 | } | |
2782 | ||
2783 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2784 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2785 | _("could not find a target to follow fork")); |
ee057212 DJ |
2786 | } |
2787 | ||
136d6dae VP |
2788 | void |
2789 | target_mourn_inferior (void) | |
2790 | { | |
2791 | struct target_ops *t; | |
5d502164 | 2792 | |
136d6dae VP |
2793 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2794 | { | |
2795 | if (t->to_mourn_inferior != NULL) | |
2796 | { | |
2797 | t->to_mourn_inferior (t); | |
947b8855 PA |
2798 | if (targetdebug) |
2799 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2800 | |
2801 | /* We no longer need to keep handles on any of the object files. | |
2802 | Make sure to release them to avoid unnecessarily locking any | |
2803 | of them while we're not actually debugging. */ | |
2804 | bfd_cache_close_all (); | |
2805 | ||
136d6dae VP |
2806 | return; |
2807 | } | |
2808 | } | |
2809 | ||
2810 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2811 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2812 | } |
2813 | ||
424163ea DJ |
2814 | /* Look for a target which can describe architectural features, starting |
2815 | from TARGET. If we find one, return its description. */ | |
2816 | ||
2817 | const struct target_desc * | |
2818 | target_read_description (struct target_ops *target) | |
2819 | { | |
2820 | struct target_ops *t; | |
2821 | ||
2822 | for (t = target; t != NULL; t = t->beneath) | |
2823 | if (t->to_read_description != NULL) | |
2824 | { | |
2825 | const struct target_desc *tdesc; | |
2826 | ||
2827 | tdesc = t->to_read_description (t); | |
2828 | if (tdesc) | |
2829 | return tdesc; | |
2830 | } | |
2831 | ||
2832 | return NULL; | |
2833 | } | |
2834 | ||
08388c79 DE |
2835 | /* The default implementation of to_search_memory. |
2836 | This implements a basic search of memory, reading target memory and | |
2837 | performing the search here (as opposed to performing the search in on the | |
2838 | target side with, for example, gdbserver). */ | |
2839 | ||
2840 | int | |
2841 | simple_search_memory (struct target_ops *ops, | |
2842 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2843 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2844 | CORE_ADDR *found_addrp) | |
2845 | { | |
2846 | /* NOTE: also defined in find.c testcase. */ | |
2847 | #define SEARCH_CHUNK_SIZE 16000 | |
2848 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2849 | /* Buffer to hold memory contents for searching. */ | |
2850 | gdb_byte *search_buf; | |
2851 | unsigned search_buf_size; | |
2852 | struct cleanup *old_cleanups; | |
2853 | ||
2854 | search_buf_size = chunk_size + pattern_len - 1; | |
2855 | ||
2856 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2857 | if (search_space_len < search_buf_size) | |
2858 | search_buf_size = search_space_len; | |
2859 | ||
2860 | search_buf = malloc (search_buf_size); | |
2861 | if (search_buf == NULL) | |
5e1471f5 | 2862 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2863 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2864 | ||
2865 | /* Prime the search buffer. */ | |
2866 | ||
2867 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2868 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2869 | { | |
5e1471f5 | 2870 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
2871 | hex_string (start_addr)); |
2872 | do_cleanups (old_cleanups); | |
2873 | return -1; | |
2874 | } | |
2875 | ||
2876 | /* Perform the search. | |
2877 | ||
2878 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2879 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2880 | read in another N bytes. */ | |
2881 | ||
2882 | while (search_space_len >= pattern_len) | |
2883 | { | |
2884 | gdb_byte *found_ptr; | |
2885 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2886 | ||
2887 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2888 | pattern, pattern_len); | |
2889 | ||
2890 | if (found_ptr != NULL) | |
2891 | { | |
2892 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2893 | |
08388c79 DE |
2894 | *found_addrp = found_addr; |
2895 | do_cleanups (old_cleanups); | |
2896 | return 1; | |
2897 | } | |
2898 | ||
2899 | /* Not found in this chunk, skip to next chunk. */ | |
2900 | ||
2901 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2902 | if (search_space_len >= chunk_size) | |
2903 | search_space_len -= chunk_size; | |
2904 | else | |
2905 | search_space_len = 0; | |
2906 | ||
2907 | if (search_space_len >= pattern_len) | |
2908 | { | |
2909 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2910 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2911 | int nr_to_read; |
2912 | ||
2913 | /* Copy the trailing part of the previous iteration to the front | |
2914 | of the buffer for the next iteration. */ | |
2915 | gdb_assert (keep_len == pattern_len - 1); | |
2916 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2917 | ||
2918 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2919 | ||
2920 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2921 | search_buf + keep_len, read_addr, | |
2922 | nr_to_read) != nr_to_read) | |
2923 | { | |
9b20d036 MS |
2924 | warning (_("Unable to access target " |
2925 | "memory at %s, halting search."), | |
08388c79 DE |
2926 | hex_string (read_addr)); |
2927 | do_cleanups (old_cleanups); | |
2928 | return -1; | |
2929 | } | |
2930 | ||
2931 | start_addr += chunk_size; | |
2932 | } | |
2933 | } | |
2934 | ||
2935 | /* Not found. */ | |
2936 | ||
2937 | do_cleanups (old_cleanups); | |
2938 | return 0; | |
2939 | } | |
2940 | ||
2941 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2942 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2943 | ||
2944 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2945 | requiring halting of the search (e.g. memory read error). | |
2946 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2947 | ||
2948 | int | |
2949 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2950 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2951 | CORE_ADDR *found_addrp) | |
2952 | { | |
2953 | struct target_ops *t; | |
2954 | int found; | |
2955 | ||
2956 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2957 | so we have to scan the target stack and handle targetdebug | |
2958 | ourselves. */ | |
2959 | ||
2960 | if (targetdebug) | |
2961 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2962 | hex_string (start_addr)); | |
2963 | ||
2964 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2965 | if (t->to_search_memory != NULL) | |
2966 | break; | |
2967 | ||
2968 | if (t != NULL) | |
2969 | { | |
2970 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2971 | pattern, pattern_len, found_addrp); | |
2972 | } | |
2973 | else | |
2974 | { | |
2975 | /* If a special version of to_search_memory isn't available, use the | |
2976 | simple version. */ | |
c35b1492 | 2977 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2978 | start_addr, search_space_len, |
2979 | pattern, pattern_len, found_addrp); | |
2980 | } | |
2981 | ||
2982 | if (targetdebug) | |
2983 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2984 | ||
2985 | return found; | |
2986 | } | |
2987 | ||
8edfe269 DJ |
2988 | /* Look through the currently pushed targets. If none of them will |
2989 | be able to restart the currently running process, issue an error | |
2990 | message. */ | |
2991 | ||
2992 | void | |
2993 | target_require_runnable (void) | |
2994 | { | |
2995 | struct target_ops *t; | |
2996 | ||
2997 | for (t = target_stack; t != NULL; t = t->beneath) | |
2998 | { | |
2999 | /* If this target knows how to create a new program, then | |
3000 | assume we will still be able to after killing the current | |
3001 | one. Either killing and mourning will not pop T, or else | |
3002 | find_default_run_target will find it again. */ | |
3003 | if (t->to_create_inferior != NULL) | |
3004 | return; | |
3005 | ||
3006 | /* Do not worry about thread_stratum targets that can not | |
3007 | create inferiors. Assume they will be pushed again if | |
3008 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
3009 | if (t->to_stratum == thread_stratum |
3010 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
3011 | continue; |
3012 | ||
3e43a32a MS |
3013 | error (_("The \"%s\" target does not support \"run\". " |
3014 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
3015 | t->to_shortname); |
3016 | } | |
3017 | ||
3018 | /* This function is only called if the target is running. In that | |
3019 | case there should have been a process_stratum target and it | |
c378eb4e | 3020 | should either know how to create inferiors, or not... */ |
9b20d036 | 3021 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
3022 | } |
3023 | ||
c906108c SS |
3024 | /* Look through the list of possible targets for a target that can |
3025 | execute a run or attach command without any other data. This is | |
3026 | used to locate the default process stratum. | |
3027 | ||
5f667f2d PA |
3028 | If DO_MESG is not NULL, the result is always valid (error() is |
3029 | called for errors); else, return NULL on error. */ | |
c906108c SS |
3030 | |
3031 | static struct target_ops * | |
fba45db2 | 3032 | find_default_run_target (char *do_mesg) |
c906108c SS |
3033 | { |
3034 | struct target_ops **t; | |
3035 | struct target_ops *runable = NULL; | |
3036 | int count; | |
3037 | ||
3038 | count = 0; | |
3039 | ||
3040 | for (t = target_structs; t < target_structs + target_struct_size; | |
3041 | ++t) | |
3042 | { | |
c5aa993b | 3043 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
3044 | { |
3045 | runable = *t; | |
3046 | ++count; | |
3047 | } | |
3048 | } | |
3049 | ||
3050 | if (count != 1) | |
5f667f2d PA |
3051 | { |
3052 | if (do_mesg) | |
3053 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
3054 | else | |
3055 | return NULL; | |
3056 | } | |
c906108c SS |
3057 | |
3058 | return runable; | |
3059 | } | |
3060 | ||
3061 | void | |
136d6dae | 3062 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
3063 | { |
3064 | struct target_ops *t; | |
3065 | ||
c5aa993b | 3066 | t = find_default_run_target ("attach"); |
136d6dae | 3067 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
3068 | return; |
3069 | } | |
3070 | ||
c906108c | 3071 | void |
136d6dae VP |
3072 | find_default_create_inferior (struct target_ops *ops, |
3073 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 3074 | int from_tty) |
c906108c SS |
3075 | { |
3076 | struct target_ops *t; | |
3077 | ||
c5aa993b | 3078 | t = find_default_run_target ("run"); |
136d6dae | 3079 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
3080 | return; |
3081 | } | |
3082 | ||
2c0b251b | 3083 | static int |
b84876c2 PA |
3084 | find_default_can_async_p (void) |
3085 | { | |
3086 | struct target_ops *t; | |
3087 | ||
5f667f2d PA |
3088 | /* This may be called before the target is pushed on the stack; |
3089 | look for the default process stratum. If there's none, gdb isn't | |
3090 | configured with a native debugger, and target remote isn't | |
3091 | connected yet. */ | |
3092 | t = find_default_run_target (NULL); | |
3093 | if (t && t->to_can_async_p) | |
b84876c2 PA |
3094 | return (t->to_can_async_p) (); |
3095 | return 0; | |
3096 | } | |
3097 | ||
2c0b251b | 3098 | static int |
b84876c2 PA |
3099 | find_default_is_async_p (void) |
3100 | { | |
3101 | struct target_ops *t; | |
3102 | ||
5f667f2d PA |
3103 | /* This may be called before the target is pushed on the stack; |
3104 | look for the default process stratum. If there's none, gdb isn't | |
3105 | configured with a native debugger, and target remote isn't | |
3106 | connected yet. */ | |
3107 | t = find_default_run_target (NULL); | |
3108 | if (t && t->to_is_async_p) | |
b84876c2 PA |
3109 | return (t->to_is_async_p) (); |
3110 | return 0; | |
3111 | } | |
3112 | ||
2c0b251b | 3113 | static int |
9908b566 VP |
3114 | find_default_supports_non_stop (void) |
3115 | { | |
3116 | struct target_ops *t; | |
3117 | ||
3118 | t = find_default_run_target (NULL); | |
3119 | if (t && t->to_supports_non_stop) | |
3120 | return (t->to_supports_non_stop) (); | |
3121 | return 0; | |
3122 | } | |
3123 | ||
3124 | int | |
2c0b251b | 3125 | target_supports_non_stop (void) |
9908b566 VP |
3126 | { |
3127 | struct target_ops *t; | |
5d502164 | 3128 | |
9908b566 VP |
3129 | for (t = ¤t_target; t != NULL; t = t->beneath) |
3130 | if (t->to_supports_non_stop) | |
3131 | return t->to_supports_non_stop (); | |
3132 | ||
3133 | return 0; | |
3134 | } | |
3135 | ||
145b16a9 UW |
3136 | /* Implement the "info proc" command. */ |
3137 | ||
3138 | void | |
3139 | target_info_proc (char *args, enum info_proc_what what) | |
3140 | { | |
3141 | struct target_ops *t; | |
3142 | ||
3143 | /* If we're already connected to something that can get us OS | |
3144 | related data, use it. Otherwise, try using the native | |
3145 | target. */ | |
3146 | if (current_target.to_stratum >= process_stratum) | |
3147 | t = current_target.beneath; | |
3148 | else | |
3149 | t = find_default_run_target (NULL); | |
3150 | ||
3151 | for (; t != NULL; t = t->beneath) | |
3152 | { | |
3153 | if (t->to_info_proc != NULL) | |
3154 | { | |
3155 | t->to_info_proc (t, args, what); | |
3156 | ||
3157 | if (targetdebug) | |
3158 | fprintf_unfiltered (gdb_stdlog, | |
3159 | "target_info_proc (\"%s\", %d)\n", args, what); | |
3160 | ||
3161 | return; | |
3162 | } | |
3163 | } | |
3164 | ||
3165 | error (_("Not supported on this target.")); | |
3166 | } | |
3167 | ||
03583c20 UW |
3168 | static int |
3169 | find_default_supports_disable_randomization (void) | |
3170 | { | |
3171 | struct target_ops *t; | |
3172 | ||
3173 | t = find_default_run_target (NULL); | |
3174 | if (t && t->to_supports_disable_randomization) | |
3175 | return (t->to_supports_disable_randomization) (); | |
3176 | return 0; | |
3177 | } | |
3178 | ||
3179 | int | |
3180 | target_supports_disable_randomization (void) | |
3181 | { | |
3182 | struct target_ops *t; | |
3183 | ||
3184 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
3185 | if (t->to_supports_disable_randomization) | |
3186 | return t->to_supports_disable_randomization (); | |
3187 | ||
3188 | return 0; | |
3189 | } | |
9908b566 | 3190 | |
07e059b5 VP |
3191 | char * |
3192 | target_get_osdata (const char *type) | |
3193 | { | |
07e059b5 VP |
3194 | struct target_ops *t; |
3195 | ||
739ef7fb PA |
3196 | /* If we're already connected to something that can get us OS |
3197 | related data, use it. Otherwise, try using the native | |
3198 | target. */ | |
3199 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 3200 | t = current_target.beneath; |
739ef7fb PA |
3201 | else |
3202 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
3203 | |
3204 | if (!t) | |
3205 | return NULL; | |
3206 | ||
6d097e65 | 3207 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
3208 | } |
3209 | ||
6c95b8df PA |
3210 | /* Determine the current address space of thread PTID. */ |
3211 | ||
3212 | struct address_space * | |
3213 | target_thread_address_space (ptid_t ptid) | |
3214 | { | |
c0694254 | 3215 | struct address_space *aspace; |
6c95b8df | 3216 | struct inferior *inf; |
c0694254 PA |
3217 | struct target_ops *t; |
3218 | ||
3219 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3220 | { | |
3221 | if (t->to_thread_address_space != NULL) | |
3222 | { | |
3223 | aspace = t->to_thread_address_space (t, ptid); | |
3224 | gdb_assert (aspace); | |
6c95b8df | 3225 | |
c0694254 PA |
3226 | if (targetdebug) |
3227 | fprintf_unfiltered (gdb_stdlog, | |
3228 | "target_thread_address_space (%s) = %d\n", | |
3229 | target_pid_to_str (ptid), | |
3230 | address_space_num (aspace)); | |
3231 | return aspace; | |
3232 | } | |
3233 | } | |
6c95b8df PA |
3234 | |
3235 | /* Fall-back to the "main" address space of the inferior. */ | |
3236 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3237 | ||
3238 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3239 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3240 | _("Can't determine the current " |
3241 | "address space of thread %s\n"), | |
6c95b8df PA |
3242 | target_pid_to_str (ptid)); |
3243 | ||
3244 | return inf->aspace; | |
3245 | } | |
3246 | ||
7313baad UW |
3247 | |
3248 | /* Target file operations. */ | |
3249 | ||
3250 | static struct target_ops * | |
3251 | default_fileio_target (void) | |
3252 | { | |
3253 | /* If we're already connected to something that can perform | |
3254 | file I/O, use it. Otherwise, try using the native target. */ | |
3255 | if (current_target.to_stratum >= process_stratum) | |
3256 | return current_target.beneath; | |
3257 | else | |
3258 | return find_default_run_target ("file I/O"); | |
3259 | } | |
3260 | ||
3261 | /* Open FILENAME on the target, using FLAGS and MODE. Return a | |
3262 | target file descriptor, or -1 if an error occurs (and set | |
3263 | *TARGET_ERRNO). */ | |
3264 | int | |
3265 | target_fileio_open (const char *filename, int flags, int mode, | |
3266 | int *target_errno) | |
3267 | { | |
3268 | struct target_ops *t; | |
3269 | ||
3270 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3271 | { | |
3272 | if (t->to_fileio_open != NULL) | |
3273 | { | |
3274 | int fd = t->to_fileio_open (filename, flags, mode, target_errno); | |
3275 | ||
3276 | if (targetdebug) | |
3277 | fprintf_unfiltered (gdb_stdlog, | |
3278 | "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n", | |
3279 | filename, flags, mode, | |
3280 | fd, fd != -1 ? 0 : *target_errno); | |
3281 | return fd; | |
3282 | } | |
3283 | } | |
3284 | ||
3285 | *target_errno = FILEIO_ENOSYS; | |
3286 | return -1; | |
3287 | } | |
3288 | ||
3289 | /* Write up to LEN bytes from WRITE_BUF to FD on the target. | |
3290 | Return the number of bytes written, or -1 if an error occurs | |
3291 | (and set *TARGET_ERRNO). */ | |
3292 | int | |
3293 | target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len, | |
3294 | ULONGEST offset, int *target_errno) | |
3295 | { | |
3296 | struct target_ops *t; | |
3297 | ||
3298 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3299 | { | |
3300 | if (t->to_fileio_pwrite != NULL) | |
3301 | { | |
3302 | int ret = t->to_fileio_pwrite (fd, write_buf, len, offset, | |
3303 | target_errno); | |
3304 | ||
3305 | if (targetdebug) | |
3306 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3307 | "target_fileio_pwrite (%d,...,%d,%s) " |
7313baad | 3308 | "= %d (%d)\n", |
a71b5a38 | 3309 | fd, len, pulongest (offset), |
7313baad UW |
3310 | ret, ret != -1 ? 0 : *target_errno); |
3311 | return ret; | |
3312 | } | |
3313 | } | |
3314 | ||
3315 | *target_errno = FILEIO_ENOSYS; | |
3316 | return -1; | |
3317 | } | |
3318 | ||
3319 | /* Read up to LEN bytes FD on the target into READ_BUF. | |
3320 | Return the number of bytes read, or -1 if an error occurs | |
3321 | (and set *TARGET_ERRNO). */ | |
3322 | int | |
3323 | target_fileio_pread (int fd, gdb_byte *read_buf, int len, | |
3324 | ULONGEST offset, int *target_errno) | |
3325 | { | |
3326 | struct target_ops *t; | |
3327 | ||
3328 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3329 | { | |
3330 | if (t->to_fileio_pread != NULL) | |
3331 | { | |
3332 | int ret = t->to_fileio_pread (fd, read_buf, len, offset, | |
3333 | target_errno); | |
3334 | ||
3335 | if (targetdebug) | |
3336 | fprintf_unfiltered (gdb_stdlog, | |
a71b5a38 | 3337 | "target_fileio_pread (%d,...,%d,%s) " |
7313baad | 3338 | "= %d (%d)\n", |
a71b5a38 | 3339 | fd, len, pulongest (offset), |
7313baad UW |
3340 | ret, ret != -1 ? 0 : *target_errno); |
3341 | return ret; | |
3342 | } | |
3343 | } | |
3344 | ||
3345 | *target_errno = FILEIO_ENOSYS; | |
3346 | return -1; | |
3347 | } | |
3348 | ||
3349 | /* Close FD on the target. Return 0, or -1 if an error occurs | |
3350 | (and set *TARGET_ERRNO). */ | |
3351 | int | |
3352 | target_fileio_close (int fd, int *target_errno) | |
3353 | { | |
3354 | struct target_ops *t; | |
3355 | ||
3356 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3357 | { | |
3358 | if (t->to_fileio_close != NULL) | |
3359 | { | |
3360 | int ret = t->to_fileio_close (fd, target_errno); | |
3361 | ||
3362 | if (targetdebug) | |
3363 | fprintf_unfiltered (gdb_stdlog, | |
3364 | "target_fileio_close (%d) = %d (%d)\n", | |
3365 | fd, ret, ret != -1 ? 0 : *target_errno); | |
3366 | return ret; | |
3367 | } | |
3368 | } | |
3369 | ||
3370 | *target_errno = FILEIO_ENOSYS; | |
3371 | return -1; | |
3372 | } | |
3373 | ||
3374 | /* Unlink FILENAME on the target. Return 0, or -1 if an error | |
3375 | occurs (and set *TARGET_ERRNO). */ | |
3376 | int | |
3377 | target_fileio_unlink (const char *filename, int *target_errno) | |
3378 | { | |
3379 | struct target_ops *t; | |
3380 | ||
3381 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3382 | { | |
3383 | if (t->to_fileio_unlink != NULL) | |
3384 | { | |
3385 | int ret = t->to_fileio_unlink (filename, target_errno); | |
3386 | ||
3387 | if (targetdebug) | |
3388 | fprintf_unfiltered (gdb_stdlog, | |
3389 | "target_fileio_unlink (%s) = %d (%d)\n", | |
3390 | filename, ret, ret != -1 ? 0 : *target_errno); | |
3391 | return ret; | |
3392 | } | |
3393 | } | |
3394 | ||
3395 | *target_errno = FILEIO_ENOSYS; | |
3396 | return -1; | |
3397 | } | |
3398 | ||
b9e7b9c3 UW |
3399 | /* Read value of symbolic link FILENAME on the target. Return a |
3400 | null-terminated string allocated via xmalloc, or NULL if an error | |
3401 | occurs (and set *TARGET_ERRNO). */ | |
3402 | char * | |
3403 | target_fileio_readlink (const char *filename, int *target_errno) | |
3404 | { | |
3405 | struct target_ops *t; | |
3406 | ||
3407 | for (t = default_fileio_target (); t != NULL; t = t->beneath) | |
3408 | { | |
3409 | if (t->to_fileio_readlink != NULL) | |
3410 | { | |
3411 | char *ret = t->to_fileio_readlink (filename, target_errno); | |
3412 | ||
3413 | if (targetdebug) | |
3414 | fprintf_unfiltered (gdb_stdlog, | |
3415 | "target_fileio_readlink (%s) = %s (%d)\n", | |
3416 | filename, ret? ret : "(nil)", | |
3417 | ret? 0 : *target_errno); | |
3418 | return ret; | |
3419 | } | |
3420 | } | |
3421 | ||
3422 | *target_errno = FILEIO_ENOSYS; | |
3423 | return NULL; | |
3424 | } | |
3425 | ||
7313baad UW |
3426 | static void |
3427 | target_fileio_close_cleanup (void *opaque) | |
3428 | { | |
3429 | int fd = *(int *) opaque; | |
3430 | int target_errno; | |
3431 | ||
3432 | target_fileio_close (fd, &target_errno); | |
3433 | } | |
3434 | ||
3435 | /* Read target file FILENAME. Store the result in *BUF_P and | |
3436 | return the size of the transferred data. PADDING additional bytes are | |
3437 | available in *BUF_P. This is a helper function for | |
3438 | target_fileio_read_alloc; see the declaration of that function for more | |
3439 | information. */ | |
3440 | ||
3441 | static LONGEST | |
3442 | target_fileio_read_alloc_1 (const char *filename, | |
3443 | gdb_byte **buf_p, int padding) | |
3444 | { | |
3445 | struct cleanup *close_cleanup; | |
3446 | size_t buf_alloc, buf_pos; | |
3447 | gdb_byte *buf; | |
3448 | LONGEST n; | |
3449 | int fd; | |
3450 | int target_errno; | |
3451 | ||
3452 | fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno); | |
3453 | if (fd == -1) | |
3454 | return -1; | |
3455 | ||
3456 | close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd); | |
3457 | ||
3458 | /* Start by reading up to 4K at a time. The target will throttle | |
3459 | this number down if necessary. */ | |
3460 | buf_alloc = 4096; | |
3461 | buf = xmalloc (buf_alloc); | |
3462 | buf_pos = 0; | |
3463 | while (1) | |
3464 | { | |
3465 | n = target_fileio_pread (fd, &buf[buf_pos], | |
3466 | buf_alloc - buf_pos - padding, buf_pos, | |
3467 | &target_errno); | |
3468 | if (n < 0) | |
3469 | { | |
3470 | /* An error occurred. */ | |
3471 | do_cleanups (close_cleanup); | |
3472 | xfree (buf); | |
3473 | return -1; | |
3474 | } | |
3475 | else if (n == 0) | |
3476 | { | |
3477 | /* Read all there was. */ | |
3478 | do_cleanups (close_cleanup); | |
3479 | if (buf_pos == 0) | |
3480 | xfree (buf); | |
3481 | else | |
3482 | *buf_p = buf; | |
3483 | return buf_pos; | |
3484 | } | |
3485 | ||
3486 | buf_pos += n; | |
3487 | ||
3488 | /* If the buffer is filling up, expand it. */ | |
3489 | if (buf_alloc < buf_pos * 2) | |
3490 | { | |
3491 | buf_alloc *= 2; | |
3492 | buf = xrealloc (buf, buf_alloc); | |
3493 | } | |
3494 | ||
3495 | QUIT; | |
3496 | } | |
3497 | } | |
3498 | ||
3499 | /* Read target file FILENAME. Store the result in *BUF_P and return | |
3500 | the size of the transferred data. See the declaration in "target.h" | |
3501 | function for more information about the return value. */ | |
3502 | ||
3503 | LONGEST | |
3504 | target_fileio_read_alloc (const char *filename, gdb_byte **buf_p) | |
3505 | { | |
3506 | return target_fileio_read_alloc_1 (filename, buf_p, 0); | |
3507 | } | |
3508 | ||
3509 | /* Read target file FILENAME. The result is NUL-terminated and | |
3510 | returned as a string, allocated using xmalloc. If an error occurs | |
3511 | or the transfer is unsupported, NULL is returned. Empty objects | |
3512 | are returned as allocated but empty strings. A warning is issued | |
3513 | if the result contains any embedded NUL bytes. */ | |
3514 | ||
3515 | char * | |
3516 | target_fileio_read_stralloc (const char *filename) | |
3517 | { | |
3518 | gdb_byte *buffer; | |
3519 | LONGEST i, transferred; | |
3520 | ||
3521 | transferred = target_fileio_read_alloc_1 (filename, &buffer, 1); | |
3522 | ||
3523 | if (transferred < 0) | |
3524 | return NULL; | |
3525 | ||
3526 | if (transferred == 0) | |
3527 | return xstrdup (""); | |
3528 | ||
3529 | buffer[transferred] = 0; | |
3530 | ||
3531 | /* Check for embedded NUL bytes; but allow trailing NULs. */ | |
3532 | for (i = strlen (buffer); i < transferred; i++) | |
3533 | if (buffer[i] != 0) | |
3534 | { | |
3535 | warning (_("target file %s " | |
3536 | "contained unexpected null characters"), | |
3537 | filename); | |
3538 | break; | |
3539 | } | |
3540 | ||
3541 | return (char *) buffer; | |
3542 | } | |
3543 | ||
3544 | ||
e0d24f8d WZ |
3545 | static int |
3546 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3547 | { | |
ffe5a37e | 3548 | return (len <= gdbarch_ptr_bit (target_gdbarch) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3549 | } |
3550 | ||
5009afc5 AS |
3551 | static int |
3552 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3553 | CORE_ADDR addr, | |
3554 | CORE_ADDR start, int length) | |
3555 | { | |
3556 | return addr >= start && addr < start + length; | |
3557 | } | |
3558 | ||
c2250ad1 UW |
3559 | static struct gdbarch * |
3560 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3561 | { | |
3562 | return target_gdbarch; | |
3563 | } | |
3564 | ||
c906108c | 3565 | static int |
fba45db2 | 3566 | return_zero (void) |
c906108c SS |
3567 | { |
3568 | return 0; | |
3569 | } | |
3570 | ||
3571 | static int | |
fba45db2 | 3572 | return_one (void) |
c906108c SS |
3573 | { |
3574 | return 1; | |
3575 | } | |
3576 | ||
ccaa32c7 GS |
3577 | static int |
3578 | return_minus_one (void) | |
3579 | { | |
3580 | return -1; | |
3581 | } | |
3582 | ||
7a292a7a SS |
3583 | /* Find a single runnable target in the stack and return it. If for |
3584 | some reason there is more than one, return NULL. */ | |
3585 | ||
3586 | struct target_ops * | |
fba45db2 | 3587 | find_run_target (void) |
7a292a7a SS |
3588 | { |
3589 | struct target_ops **t; | |
3590 | struct target_ops *runable = NULL; | |
3591 | int count; | |
c5aa993b | 3592 | |
7a292a7a | 3593 | count = 0; |
c5aa993b | 3594 | |
7a292a7a SS |
3595 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
3596 | { | |
c5aa993b | 3597 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
3598 | { |
3599 | runable = *t; | |
3600 | ++count; | |
3601 | } | |
3602 | } | |
c5aa993b | 3603 | |
7a292a7a SS |
3604 | return (count == 1 ? runable : NULL); |
3605 | } | |
3606 | ||
ed9a39eb JM |
3607 | /* |
3608 | * Find the next target down the stack from the specified target. | |
3609 | */ | |
3610 | ||
3611 | struct target_ops * | |
fba45db2 | 3612 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3613 | { |
258b763a | 3614 | return t->beneath; |
ed9a39eb JM |
3615 | } |
3616 | ||
c906108c SS |
3617 | \f |
3618 | /* The inferior process has died. Long live the inferior! */ | |
3619 | ||
3620 | void | |
fba45db2 | 3621 | generic_mourn_inferior (void) |
c906108c | 3622 | { |
7f9f62ba | 3623 | ptid_t ptid; |
c906108c | 3624 | |
7f9f62ba | 3625 | ptid = inferior_ptid; |
39f77062 | 3626 | inferior_ptid = null_ptid; |
7f9f62ba | 3627 | |
f59f708a PA |
3628 | /* Mark breakpoints uninserted in case something tries to delete a |
3629 | breakpoint while we delete the inferior's threads (which would | |
3630 | fail, since the inferior is long gone). */ | |
3631 | mark_breakpoints_out (); | |
3632 | ||
7f9f62ba PA |
3633 | if (!ptid_equal (ptid, null_ptid)) |
3634 | { | |
3635 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3636 | exit_inferior (pid); |
7f9f62ba PA |
3637 | } |
3638 | ||
f59f708a PA |
3639 | /* Note this wipes step-resume breakpoints, so needs to be done |
3640 | after exit_inferior, which ends up referencing the step-resume | |
3641 | breakpoints through clear_thread_inferior_resources. */ | |
c906108c | 3642 | breakpoint_init_inferior (inf_exited); |
f59f708a | 3643 | |
c906108c SS |
3644 | registers_changed (); |
3645 | ||
c906108c SS |
3646 | reopen_exec_file (); |
3647 | reinit_frame_cache (); | |
3648 | ||
9a4105ab AC |
3649 | if (deprecated_detach_hook) |
3650 | deprecated_detach_hook (); | |
c906108c SS |
3651 | } |
3652 | \f | |
8807d78b | 3653 | /* Helper function for child_wait and the derivatives of child_wait. |
c906108c SS |
3654 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our |
3655 | translation of that in OURSTATUS. */ | |
3656 | void | |
fba45db2 | 3657 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c | 3658 | { |
c906108c SS |
3659 | if (WIFEXITED (hoststatus)) |
3660 | { | |
3661 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
3662 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
3663 | } | |
3664 | else if (!WIFSTOPPED (hoststatus)) | |
3665 | { | |
3666 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
3667 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
3668 | } | |
3669 | else | |
3670 | { | |
3671 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
3672 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
3673 | } | |
3674 | } | |
3675 | \f | |
fd0a2a6f MK |
3676 | /* Convert a normal process ID to a string. Returns the string in a |
3677 | static buffer. */ | |
c906108c SS |
3678 | |
3679 | char * | |
39f77062 | 3680 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3681 | { |
fd0a2a6f | 3682 | static char buf[32]; |
c906108c | 3683 | |
5fff8fc0 | 3684 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3685 | return buf; |
3686 | } | |
3687 | ||
2c0b251b | 3688 | static char * |
117de6a9 PA |
3689 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3690 | { | |
3691 | return normal_pid_to_str (ptid); | |
3692 | } | |
3693 | ||
9b4eba8e HZ |
3694 | /* Error-catcher for target_find_memory_regions. */ |
3695 | static int | |
b8edc417 | 3696 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3697 | { |
9b4eba8e | 3698 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3699 | return 0; |
3700 | } | |
3701 | ||
9b4eba8e HZ |
3702 | /* Error-catcher for target_make_corefile_notes. */ |
3703 | static char * | |
3704 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3705 | { |
9b4eba8e | 3706 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3707 | return NULL; |
3708 | } | |
3709 | ||
6b04bdb7 MS |
3710 | /* Error-catcher for target_get_bookmark. */ |
3711 | static gdb_byte * | |
3712 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3713 | { | |
3714 | tcomplain (); | |
3715 | return NULL; | |
3716 | } | |
3717 | ||
3718 | /* Error-catcher for target_goto_bookmark. */ | |
3719 | static void | |
3720 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3721 | { | |
3722 | tcomplain (); | |
3723 | } | |
3724 | ||
c906108c SS |
3725 | /* Set up the handful of non-empty slots needed by the dummy target |
3726 | vector. */ | |
3727 | ||
3728 | static void | |
fba45db2 | 3729 | init_dummy_target (void) |
c906108c SS |
3730 | { |
3731 | dummy_target.to_shortname = "None"; | |
3732 | dummy_target.to_longname = "None"; | |
3733 | dummy_target.to_doc = ""; | |
3734 | dummy_target.to_attach = find_default_attach; | |
136d6dae VP |
3735 | dummy_target.to_detach = |
3736 | (void (*)(struct target_ops *, char *, int))target_ignore; | |
c906108c | 3737 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
3738 | dummy_target.to_can_async_p = find_default_can_async_p; |
3739 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 3740 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
03583c20 UW |
3741 | dummy_target.to_supports_disable_randomization |
3742 | = find_default_supports_disable_randomization; | |
117de6a9 | 3743 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3744 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3745 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3746 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3747 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3748 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
0b603eba | 3749 | dummy_target.to_xfer_partial = default_xfer_partial; |
c35b1492 PA |
3750 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3751 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3752 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3753 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3754 | dummy_target.to_has_execution |
3755 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
7155de5a HZ |
3756 | dummy_target.to_stopped_by_watchpoint = return_zero; |
3757 | dummy_target.to_stopped_data_address = | |
3758 | (int (*) (struct target_ops *, CORE_ADDR *)) return_zero; | |
c906108c SS |
3759 | dummy_target.to_magic = OPS_MAGIC; |
3760 | } | |
c906108c | 3761 | \f |
c906108c | 3762 | static void |
fba45db2 | 3763 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3764 | { |
3765 | debug_target.to_open (args, from_tty); | |
3766 | ||
96baa820 | 3767 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3768 | } |
3769 | ||
f1c07ab0 AC |
3770 | void |
3771 | target_close (struct target_ops *targ, int quitting) | |
3772 | { | |
3773 | if (targ->to_xclose != NULL) | |
3774 | targ->to_xclose (targ, quitting); | |
3775 | else if (targ->to_close != NULL) | |
3776 | targ->to_close (quitting); | |
947b8855 PA |
3777 | |
3778 | if (targetdebug) | |
3779 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); | |
f1c07ab0 AC |
3780 | } |
3781 | ||
136d6dae VP |
3782 | void |
3783 | target_attach (char *args, int from_tty) | |
3784 | { | |
3785 | struct target_ops *t; | |
5d502164 | 3786 | |
136d6dae VP |
3787 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3788 | { | |
3789 | if (t->to_attach != NULL) | |
3790 | { | |
3791 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3792 | if (targetdebug) |
3793 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3794 | args, from_tty); | |
136d6dae VP |
3795 | return; |
3796 | } | |
3797 | } | |
3798 | ||
3799 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3800 | _("could not find a target to attach")); |
136d6dae VP |
3801 | } |
3802 | ||
28439f5e PA |
3803 | int |
3804 | target_thread_alive (ptid_t ptid) | |
c906108c | 3805 | { |
28439f5e | 3806 | struct target_ops *t; |
5d502164 | 3807 | |
28439f5e PA |
3808 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3809 | { | |
3810 | if (t->to_thread_alive != NULL) | |
3811 | { | |
3812 | int retval; | |
c906108c | 3813 | |
28439f5e PA |
3814 | retval = t->to_thread_alive (t, ptid); |
3815 | if (targetdebug) | |
3816 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3817 | PIDGET (ptid), retval); | |
3818 | ||
3819 | return retval; | |
3820 | } | |
3821 | } | |
3822 | ||
3823 | return 0; | |
3824 | } | |
3825 | ||
3826 | void | |
3827 | target_find_new_threads (void) | |
3828 | { | |
3829 | struct target_ops *t; | |
5d502164 | 3830 | |
28439f5e PA |
3831 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3832 | { | |
3833 | if (t->to_find_new_threads != NULL) | |
3834 | { | |
3835 | t->to_find_new_threads (t); | |
3836 | if (targetdebug) | |
3837 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3838 | ||
3839 | return; | |
3840 | } | |
3841 | } | |
c906108c SS |
3842 | } |
3843 | ||
d914c394 SS |
3844 | void |
3845 | target_stop (ptid_t ptid) | |
3846 | { | |
3847 | if (!may_stop) | |
3848 | { | |
3849 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3850 | return; | |
3851 | } | |
3852 | ||
3853 | (*current_target.to_stop) (ptid); | |
3854 | } | |
3855 | ||
c906108c | 3856 | static void |
28439f5e | 3857 | debug_to_post_attach (int pid) |
c906108c | 3858 | { |
28439f5e | 3859 | debug_target.to_post_attach (pid); |
c906108c | 3860 | |
28439f5e | 3861 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3862 | } |
3863 | ||
f00150c9 DE |
3864 | /* Return a pretty printed form of target_waitstatus. |
3865 | Space for the result is malloc'd, caller must free. */ | |
c906108c | 3866 | |
f00150c9 DE |
3867 | char * |
3868 | target_waitstatus_to_string (const struct target_waitstatus *ws) | |
3869 | { | |
3870 | const char *kind_str = "status->kind = "; | |
c906108c | 3871 | |
f00150c9 | 3872 | switch (ws->kind) |
c906108c SS |
3873 | { |
3874 | case TARGET_WAITKIND_EXITED: | |
f00150c9 DE |
3875 | return xstrprintf ("%sexited, status = %d", |
3876 | kind_str, ws->value.integer); | |
c906108c | 3877 | case TARGET_WAITKIND_STOPPED: |
f00150c9 DE |
3878 | return xstrprintf ("%sstopped, signal = %s", |
3879 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 3880 | case TARGET_WAITKIND_SIGNALLED: |
f00150c9 DE |
3881 | return xstrprintf ("%ssignalled, signal = %s", |
3882 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 3883 | case TARGET_WAITKIND_LOADED: |
f00150c9 | 3884 | return xstrprintf ("%sloaded", kind_str); |
c906108c | 3885 | case TARGET_WAITKIND_FORKED: |
f00150c9 | 3886 | return xstrprintf ("%sforked", kind_str); |
c906108c | 3887 | case TARGET_WAITKIND_VFORKED: |
f00150c9 | 3888 | return xstrprintf ("%svforked", kind_str); |
c906108c | 3889 | case TARGET_WAITKIND_EXECD: |
f00150c9 DE |
3890 | return xstrprintf ("%sexecd", kind_str); |
3891 | case TARGET_WAITKIND_SYSCALL_ENTRY: | |
a96d9b2e | 3892 | return xstrprintf ("%sentered syscall", kind_str); |
f00150c9 | 3893 | case TARGET_WAITKIND_SYSCALL_RETURN: |
a96d9b2e | 3894 | return xstrprintf ("%sexited syscall", kind_str); |
c906108c | 3895 | case TARGET_WAITKIND_SPURIOUS: |
f00150c9 DE |
3896 | return xstrprintf ("%sspurious", kind_str); |
3897 | case TARGET_WAITKIND_IGNORE: | |
3898 | return xstrprintf ("%signore", kind_str); | |
3899 | case TARGET_WAITKIND_NO_HISTORY: | |
3900 | return xstrprintf ("%sno-history", kind_str); | |
0c94aa73 PA |
3901 | case TARGET_WAITKIND_NO_RESUMED: |
3902 | return xstrprintf ("%sno-resumed", kind_str); | |
c906108c | 3903 | default: |
f00150c9 | 3904 | return xstrprintf ("%sunknown???", kind_str); |
c906108c | 3905 | } |
f00150c9 DE |
3906 | } |
3907 | ||
bf0c5130 | 3908 | static void |
56be3814 UW |
3909 | debug_print_register (const char * func, |
3910 | struct regcache *regcache, int regno) | |
bf0c5130 | 3911 | { |
f8d29908 | 3912 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3913 | |
bf0c5130 | 3914 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3915 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3916 | && gdbarch_register_name (gdbarch, regno) != NULL |
3917 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3918 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3919 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3920 | else |
3921 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3922 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3923 | { |
e17a4113 | 3924 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3925 | int i, size = register_size (gdbarch, regno); |
d9d9c31f | 3926 | unsigned char buf[MAX_REGISTER_SIZE]; |
5d502164 | 3927 | |
0ff58721 | 3928 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3929 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3930 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3931 | { |
3932 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3933 | } | |
81c4a259 | 3934 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3935 | { |
e17a4113 | 3936 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3937 | |
0b1553bc UW |
3938 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3939 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3940 | } |
3941 | } | |
3942 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3943 | } | |
3944 | ||
28439f5e PA |
3945 | void |
3946 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3947 | { |
28439f5e | 3948 | struct target_ops *t; |
5d502164 | 3949 | |
28439f5e PA |
3950 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3951 | { | |
3952 | if (t->to_fetch_registers != NULL) | |
3953 | { | |
3954 | t->to_fetch_registers (t, regcache, regno); | |
3955 | if (targetdebug) | |
3956 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3957 | return; | |
3958 | } | |
3959 | } | |
c906108c SS |
3960 | } |
3961 | ||
28439f5e PA |
3962 | void |
3963 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3964 | { |
28439f5e | 3965 | struct target_ops *t; |
5d502164 | 3966 | |
d914c394 SS |
3967 | if (!may_write_registers) |
3968 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3969 | ||
28439f5e PA |
3970 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3971 | { | |
3972 | if (t->to_store_registers != NULL) | |
3973 | { | |
3974 | t->to_store_registers (t, regcache, regno); | |
3975 | if (targetdebug) | |
3976 | { | |
3977 | debug_print_register ("target_store_registers", regcache, regno); | |
3978 | } | |
3979 | return; | |
3980 | } | |
3981 | } | |
3982 | ||
3983 | noprocess (); | |
c906108c SS |
3984 | } |
3985 | ||
dc146f7c VP |
3986 | int |
3987 | target_core_of_thread (ptid_t ptid) | |
3988 | { | |
3989 | struct target_ops *t; | |
3990 | ||
3991 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3992 | { | |
3993 | if (t->to_core_of_thread != NULL) | |
3994 | { | |
3995 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 3996 | |
dc146f7c | 3997 | if (targetdebug) |
3e43a32a MS |
3998 | fprintf_unfiltered (gdb_stdlog, |
3999 | "target_core_of_thread (%d) = %d\n", | |
dc146f7c VP |
4000 | PIDGET (ptid), retval); |
4001 | return retval; | |
4002 | } | |
4003 | } | |
4004 | ||
4005 | return -1; | |
4006 | } | |
4007 | ||
4a5e7a5b PA |
4008 | int |
4009 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
4010 | { | |
4011 | struct target_ops *t; | |
4012 | ||
4013 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4014 | { | |
4015 | if (t->to_verify_memory != NULL) | |
4016 | { | |
4017 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 4018 | |
4a5e7a5b | 4019 | if (targetdebug) |
3e43a32a MS |
4020 | fprintf_unfiltered (gdb_stdlog, |
4021 | "target_verify_memory (%s, %s) = %d\n", | |
4a5e7a5b PA |
4022 | paddress (target_gdbarch, memaddr), |
4023 | pulongest (size), | |
4024 | retval); | |
4025 | return retval; | |
4026 | } | |
4027 | } | |
4028 | ||
4029 | tcomplain (); | |
4030 | } | |
4031 | ||
9c06b0b4 TJB |
4032 | /* The documentation for this function is in its prototype declaration in |
4033 | target.h. */ | |
4034 | ||
4035 | int | |
4036 | target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4037 | { | |
4038 | struct target_ops *t; | |
4039 | ||
4040 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4041 | if (t->to_insert_mask_watchpoint != NULL) | |
4042 | { | |
4043 | int ret; | |
4044 | ||
4045 | ret = t->to_insert_mask_watchpoint (t, addr, mask, rw); | |
4046 | ||
4047 | if (targetdebug) | |
4048 | fprintf_unfiltered (gdb_stdlog, "\ | |
4049 | target_insert_mask_watchpoint (%s, %s, %d) = %d\n", | |
4050 | core_addr_to_string (addr), | |
4051 | core_addr_to_string (mask), rw, ret); | |
4052 | ||
4053 | return ret; | |
4054 | } | |
4055 | ||
4056 | return 1; | |
4057 | } | |
4058 | ||
4059 | /* The documentation for this function is in its prototype declaration in | |
4060 | target.h. */ | |
4061 | ||
4062 | int | |
4063 | target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw) | |
4064 | { | |
4065 | struct target_ops *t; | |
4066 | ||
4067 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4068 | if (t->to_remove_mask_watchpoint != NULL) | |
4069 | { | |
4070 | int ret; | |
4071 | ||
4072 | ret = t->to_remove_mask_watchpoint (t, addr, mask, rw); | |
4073 | ||
4074 | if (targetdebug) | |
4075 | fprintf_unfiltered (gdb_stdlog, "\ | |
4076 | target_remove_mask_watchpoint (%s, %s, %d) = %d\n", | |
4077 | core_addr_to_string (addr), | |
4078 | core_addr_to_string (mask), rw, ret); | |
4079 | ||
4080 | return ret; | |
4081 | } | |
4082 | ||
4083 | return 1; | |
4084 | } | |
4085 | ||
4086 | /* The documentation for this function is in its prototype declaration | |
4087 | in target.h. */ | |
4088 | ||
4089 | int | |
4090 | target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask) | |
4091 | { | |
4092 | struct target_ops *t; | |
4093 | ||
4094 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4095 | if (t->to_masked_watch_num_registers != NULL) | |
4096 | return t->to_masked_watch_num_registers (t, addr, mask); | |
4097 | ||
4098 | return -1; | |
4099 | } | |
4100 | ||
f1310107 TJB |
4101 | /* The documentation for this function is in its prototype declaration |
4102 | in target.h. */ | |
4103 | ||
4104 | int | |
4105 | target_ranged_break_num_registers (void) | |
4106 | { | |
4107 | struct target_ops *t; | |
4108 | ||
4109 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
4110 | if (t->to_ranged_break_num_registers != NULL) | |
4111 | return t->to_ranged_break_num_registers (t); | |
4112 | ||
4113 | return -1; | |
4114 | } | |
4115 | ||
c906108c | 4116 | static void |
316f2060 | 4117 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 4118 | { |
316f2060 | 4119 | debug_target.to_prepare_to_store (regcache); |
c906108c | 4120 | |
96baa820 | 4121 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
4122 | } |
4123 | ||
4124 | static int | |
961cb7b5 | 4125 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
4126 | int write, struct mem_attrib *attrib, |
4127 | struct target_ops *target) | |
c906108c SS |
4128 | { |
4129 | int retval; | |
4130 | ||
c8e73a31 AC |
4131 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
4132 | attrib, target); | |
c906108c | 4133 | |
96baa820 | 4134 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 4135 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
5af949e3 UW |
4136 | paddress (target_gdbarch, memaddr), len, |
4137 | write ? "write" : "read", retval); | |
c906108c | 4138 | |
c906108c SS |
4139 | if (retval > 0) |
4140 | { | |
4141 | int i; | |
4142 | ||
96baa820 | 4143 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
4144 | for (i = 0; i < retval; i++) |
4145 | { | |
53b71562 | 4146 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
4147 | { |
4148 | if (targetdebug < 2 && i > 0) | |
4149 | { | |
4150 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
4151 | break; | |
4152 | } | |
4153 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
4154 | } | |
2bc416ba | 4155 | |
96baa820 | 4156 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
4157 | } |
4158 | } | |
4159 | ||
96baa820 | 4160 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
4161 | |
4162 | return retval; | |
4163 | } | |
4164 | ||
4165 | static void | |
fba45db2 | 4166 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
4167 | { |
4168 | debug_target.to_files_info (target); | |
4169 | ||
96baa820 | 4170 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
4171 | } |
4172 | ||
4173 | static int | |
a6d9a66e UW |
4174 | debug_to_insert_breakpoint (struct gdbarch *gdbarch, |
4175 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4176 | { |
4177 | int retval; | |
4178 | ||
a6d9a66e | 4179 | retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt); |
c906108c | 4180 | |
96baa820 | 4181 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4182 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
4183 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4184 | (unsigned long) retval); |
c906108c SS |
4185 | return retval; |
4186 | } | |
4187 | ||
4188 | static int | |
a6d9a66e UW |
4189 | debug_to_remove_breakpoint (struct gdbarch *gdbarch, |
4190 | struct bp_target_info *bp_tgt) | |
c906108c SS |
4191 | { |
4192 | int retval; | |
4193 | ||
a6d9a66e | 4194 | retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt); |
c906108c | 4195 | |
96baa820 | 4196 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
4197 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
4198 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 4199 | (unsigned long) retval); |
c906108c SS |
4200 | return retval; |
4201 | } | |
4202 | ||
ccaa32c7 GS |
4203 | static int |
4204 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
4205 | { | |
4206 | int retval; | |
4207 | ||
4208 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
4209 | ||
4210 | fprintf_unfiltered (gdb_stdlog, | |
4211 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
4212 | (unsigned long) type, | |
4213 | (unsigned long) cnt, | |
4214 | (unsigned long) from_tty, | |
4215 | (unsigned long) retval); | |
4216 | return retval; | |
4217 | } | |
4218 | ||
e0d24f8d WZ |
4219 | static int |
4220 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
4221 | { | |
4222 | CORE_ADDR retval; | |
4223 | ||
4224 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
4225 | ||
4226 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4227 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
4228 | core_addr_to_string (addr), (unsigned long) len, | |
4229 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
4230 | return retval; |
4231 | } | |
4232 | ||
0cf6dd15 TJB |
4233 | static int |
4234 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
4235 | struct expression *cond) | |
4236 | { | |
4237 | int retval; | |
4238 | ||
3e43a32a MS |
4239 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
4240 | rw, cond); | |
0cf6dd15 TJB |
4241 | |
4242 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
4243 | "target_can_accel_watchpoint_condition " |
4244 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
4245 | core_addr_to_string (addr), len, rw, |
4246 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
4247 | return retval; |
4248 | } | |
4249 | ||
ccaa32c7 GS |
4250 | static int |
4251 | debug_to_stopped_by_watchpoint (void) | |
4252 | { | |
4253 | int retval; | |
4254 | ||
4255 | retval = debug_target.to_stopped_by_watchpoint (); | |
4256 | ||
4257 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 4258 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
4259 | (unsigned long) retval); |
4260 | return retval; | |
4261 | } | |
4262 | ||
4aa7a7f5 JJ |
4263 | static int |
4264 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 4265 | { |
4aa7a7f5 | 4266 | int retval; |
ccaa32c7 | 4267 | |
4aa7a7f5 | 4268 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
4269 | |
4270 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4271 | "target_stopped_data_address ([%s]) = %ld\n", |
4272 | core_addr_to_string (*addr), | |
4aa7a7f5 | 4273 | (unsigned long)retval); |
ccaa32c7 GS |
4274 | return retval; |
4275 | } | |
4276 | ||
5009afc5 AS |
4277 | static int |
4278 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
4279 | CORE_ADDR addr, | |
4280 | CORE_ADDR start, int length) | |
4281 | { | |
4282 | int retval; | |
4283 | ||
4284 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
4285 | start, length); | |
4286 | ||
4287 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
4288 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
4289 | core_addr_to_string (addr), core_addr_to_string (start), | |
4290 | length, retval); | |
5009afc5 AS |
4291 | return retval; |
4292 | } | |
4293 | ||
ccaa32c7 | 4294 | static int |
a6d9a66e UW |
4295 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
4296 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4297 | { |
4298 | int retval; | |
4299 | ||
a6d9a66e | 4300 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4301 | |
4302 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4303 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
4304 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4305 | (unsigned long) retval); |
4306 | return retval; | |
4307 | } | |
4308 | ||
4309 | static int | |
a6d9a66e UW |
4310 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
4311 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
4312 | { |
4313 | int retval; | |
4314 | ||
a6d9a66e | 4315 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
4316 | |
4317 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4318 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
4319 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
4320 | (unsigned long) retval); |
4321 | return retval; | |
4322 | } | |
4323 | ||
4324 | static int | |
0cf6dd15 TJB |
4325 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
4326 | struct expression *cond) | |
ccaa32c7 GS |
4327 | { |
4328 | int retval; | |
4329 | ||
0cf6dd15 | 4330 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4331 | |
4332 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4333 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
4334 | core_addr_to_string (addr), len, type, | |
4335 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4336 | return retval; |
4337 | } | |
4338 | ||
4339 | static int | |
0cf6dd15 TJB |
4340 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type, |
4341 | struct expression *cond) | |
ccaa32c7 GS |
4342 | { |
4343 | int retval; | |
4344 | ||
0cf6dd15 | 4345 | retval = debug_target.to_remove_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
4346 | |
4347 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
4348 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
4349 | core_addr_to_string (addr), len, type, | |
4350 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
4351 | return retval; |
4352 | } | |
4353 | ||
c906108c | 4354 | static void |
fba45db2 | 4355 | debug_to_terminal_init (void) |
c906108c SS |
4356 | { |
4357 | debug_target.to_terminal_init (); | |
4358 | ||
96baa820 | 4359 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
4360 | } |
4361 | ||
4362 | static void | |
fba45db2 | 4363 | debug_to_terminal_inferior (void) |
c906108c SS |
4364 | { |
4365 | debug_target.to_terminal_inferior (); | |
4366 | ||
96baa820 | 4367 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
4368 | } |
4369 | ||
4370 | static void | |
fba45db2 | 4371 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
4372 | { |
4373 | debug_target.to_terminal_ours_for_output (); | |
4374 | ||
96baa820 | 4375 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
4376 | } |
4377 | ||
4378 | static void | |
fba45db2 | 4379 | debug_to_terminal_ours (void) |
c906108c SS |
4380 | { |
4381 | debug_target.to_terminal_ours (); | |
4382 | ||
96baa820 | 4383 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
4384 | } |
4385 | ||
a790ad35 SC |
4386 | static void |
4387 | debug_to_terminal_save_ours (void) | |
4388 | { | |
4389 | debug_target.to_terminal_save_ours (); | |
4390 | ||
4391 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
4392 | } | |
4393 | ||
c906108c | 4394 | static void |
fba45db2 | 4395 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
4396 | { |
4397 | debug_target.to_terminal_info (arg, from_tty); | |
4398 | ||
96baa820 | 4399 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
4400 | from_tty); |
4401 | } | |
4402 | ||
c906108c | 4403 | static void |
fba45db2 | 4404 | debug_to_load (char *args, int from_tty) |
c906108c SS |
4405 | { |
4406 | debug_target.to_load (args, from_tty); | |
4407 | ||
96baa820 | 4408 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
4409 | } |
4410 | ||
c906108c | 4411 | static void |
39f77062 | 4412 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 4413 | { |
39f77062 | 4414 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 4415 | |
96baa820 | 4416 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 4417 | PIDGET (ptid)); |
c906108c SS |
4418 | } |
4419 | ||
77b06cd7 | 4420 | static int |
fba45db2 | 4421 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 4422 | { |
77b06cd7 TJB |
4423 | int retval; |
4424 | ||
4425 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
4426 | ||
4427 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
4428 | pid, retval); | |
c906108c | 4429 | |
77b06cd7 | 4430 | return retval; |
c906108c SS |
4431 | } |
4432 | ||
4433 | static int | |
fba45db2 | 4434 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 4435 | { |
c5aa993b | 4436 | int retval; |
c906108c SS |
4437 | |
4438 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
4439 | ||
96baa820 | 4440 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 4441 | pid, retval); |
c906108c SS |
4442 | |
4443 | return retval; | |
4444 | } | |
4445 | ||
77b06cd7 | 4446 | static int |
fba45db2 | 4447 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 4448 | { |
77b06cd7 TJB |
4449 | int retval; |
4450 | ||
4451 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 4452 | |
77b06cd7 TJB |
4453 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
4454 | pid, retval); | |
4455 | ||
4456 | return retval; | |
c906108c SS |
4457 | } |
4458 | ||
4459 | static int | |
fba45db2 | 4460 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 4461 | { |
c5aa993b | 4462 | int retval; |
c906108c SS |
4463 | |
4464 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
4465 | ||
96baa820 | 4466 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 4467 | pid, retval); |
c906108c SS |
4468 | |
4469 | return retval; | |
4470 | } | |
4471 | ||
77b06cd7 | 4472 | static int |
fba45db2 | 4473 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 4474 | { |
77b06cd7 TJB |
4475 | int retval; |
4476 | ||
4477 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 4478 | |
77b06cd7 TJB |
4479 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
4480 | pid, retval); | |
4481 | ||
4482 | return retval; | |
c906108c SS |
4483 | } |
4484 | ||
4485 | static int | |
fba45db2 | 4486 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 4487 | { |
c5aa993b | 4488 | int retval; |
c906108c SS |
4489 | |
4490 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
4491 | ||
96baa820 | 4492 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 4493 | pid, retval); |
c906108c SS |
4494 | |
4495 | return retval; | |
4496 | } | |
4497 | ||
c906108c | 4498 | static int |
fba45db2 | 4499 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 4500 | { |
c5aa993b | 4501 | int has_exited; |
c906108c SS |
4502 | |
4503 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
4504 | ||
96baa820 | 4505 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 4506 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
4507 | |
4508 | return has_exited; | |
4509 | } | |
4510 | ||
c906108c | 4511 | static int |
fba45db2 | 4512 | debug_to_can_run (void) |
c906108c SS |
4513 | { |
4514 | int retval; | |
4515 | ||
4516 | retval = debug_target.to_can_run (); | |
4517 | ||
96baa820 | 4518 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
4519 | |
4520 | return retval; | |
4521 | } | |
4522 | ||
c2250ad1 UW |
4523 | static struct gdbarch * |
4524 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
4525 | { | |
4526 | struct gdbarch *retval; | |
4527 | ||
4528 | retval = debug_target.to_thread_architecture (ops, ptid); | |
4529 | ||
3e43a32a MS |
4530 | fprintf_unfiltered (gdb_stdlog, |
4531 | "target_thread_architecture (%s) = %s [%s]\n", | |
4532 | target_pid_to_str (ptid), | |
4533 | host_address_to_string (retval), | |
c2250ad1 UW |
4534 | gdbarch_bfd_arch_info (retval)->printable_name); |
4535 | return retval; | |
4536 | } | |
4537 | ||
c906108c | 4538 | static void |
94cc34af | 4539 | debug_to_stop (ptid_t ptid) |
c906108c | 4540 | { |
94cc34af | 4541 | debug_target.to_stop (ptid); |
c906108c | 4542 | |
94cc34af PA |
4543 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
4544 | target_pid_to_str (ptid)); | |
c906108c SS |
4545 | } |
4546 | ||
96baa820 JM |
4547 | static void |
4548 | debug_to_rcmd (char *command, | |
d9fcf2fb | 4549 | struct ui_file *outbuf) |
96baa820 JM |
4550 | { |
4551 | debug_target.to_rcmd (command, outbuf); | |
4552 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
4553 | } | |
4554 | ||
c906108c | 4555 | static char * |
fba45db2 | 4556 | debug_to_pid_to_exec_file (int pid) |
c906108c | 4557 | { |
c5aa993b | 4558 | char *exec_file; |
c906108c SS |
4559 | |
4560 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
4561 | ||
96baa820 | 4562 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 4563 | pid, exec_file); |
c906108c SS |
4564 | |
4565 | return exec_file; | |
4566 | } | |
4567 | ||
c906108c | 4568 | static void |
fba45db2 | 4569 | setup_target_debug (void) |
c906108c SS |
4570 | { |
4571 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
4572 | ||
4573 | current_target.to_open = debug_to_open; | |
c906108c | 4574 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 4575 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 4576 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
4577 | current_target.to_files_info = debug_to_files_info; |
4578 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
4579 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
4580 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
4581 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
4582 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
4583 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
4584 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
4585 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
4586 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
4587 | current_target.to_watchpoint_addr_within_range |
4588 | = debug_to_watchpoint_addr_within_range; | |
4589 | current_target.to_region_ok_for_hw_watchpoint | |
4590 | = debug_to_region_ok_for_hw_watchpoint; | |
4591 | current_target.to_can_accel_watchpoint_condition | |
4592 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
4593 | current_target.to_terminal_init = debug_to_terminal_init; |
4594 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
4595 | current_target.to_terminal_ours_for_output |
4596 | = debug_to_terminal_ours_for_output; | |
c906108c | 4597 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 4598 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 4599 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 4600 | current_target.to_load = debug_to_load; |
c906108c | 4601 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
4602 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
4603 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
4604 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
4605 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
4606 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
4607 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 4608 | current_target.to_has_exited = debug_to_has_exited; |
c906108c | 4609 | current_target.to_can_run = debug_to_can_run; |
c906108c | 4610 | current_target.to_stop = debug_to_stop; |
96baa820 | 4611 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4612 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4613 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4614 | } |
c906108c | 4615 | \f |
c5aa993b JM |
4616 | |
4617 | static char targ_desc[] = | |
3e43a32a MS |
4618 | "Names of targets and files being debugged.\nShows the entire \ |
4619 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4620 | core-file, and process, if any), as well as the symbol file name."; |
4621 | ||
96baa820 JM |
4622 | static void |
4623 | do_monitor_command (char *cmd, | |
4624 | int from_tty) | |
4625 | { | |
2b5fe715 AC |
4626 | if ((current_target.to_rcmd |
4627 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 4628 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
4629 | && (debug_target.to_rcmd |
4630 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 4631 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
4632 | target_rcmd (cmd, gdb_stdtarg); |
4633 | } | |
4634 | ||
87680a14 JB |
4635 | /* Print the name of each layers of our target stack. */ |
4636 | ||
4637 | static void | |
4638 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4639 | { | |
4640 | struct target_ops *t; | |
4641 | ||
4642 | printf_filtered (_("The current target stack is:\n")); | |
4643 | ||
4644 | for (t = target_stack; t != NULL; t = t->beneath) | |
4645 | { | |
4646 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4647 | } | |
4648 | } | |
4649 | ||
c6ebd6cf VP |
4650 | /* Controls if async mode is permitted. */ |
4651 | int target_async_permitted = 0; | |
4652 | ||
4653 | /* The set command writes to this variable. If the inferior is | |
4654 | executing, linux_nat_async_permitted is *not* updated. */ | |
4655 | static int target_async_permitted_1 = 0; | |
4656 | ||
4657 | static void | |
4658 | set_maintenance_target_async_permitted (char *args, int from_tty, | |
4659 | struct cmd_list_element *c) | |
4660 | { | |
c35b1492 | 4661 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4662 | { |
4663 | target_async_permitted_1 = target_async_permitted; | |
4664 | error (_("Cannot change this setting while the inferior is running.")); | |
4665 | } | |
4666 | ||
4667 | target_async_permitted = target_async_permitted_1; | |
4668 | } | |
4669 | ||
4670 | static void | |
4671 | show_maintenance_target_async_permitted (struct ui_file *file, int from_tty, | |
4672 | struct cmd_list_element *c, | |
4673 | const char *value) | |
4674 | { | |
3e43a32a MS |
4675 | fprintf_filtered (file, |
4676 | _("Controlling the inferior in " | |
4677 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4678 | } |
4679 | ||
d914c394 SS |
4680 | /* Temporary copies of permission settings. */ |
4681 | ||
4682 | static int may_write_registers_1 = 1; | |
4683 | static int may_write_memory_1 = 1; | |
4684 | static int may_insert_breakpoints_1 = 1; | |
4685 | static int may_insert_tracepoints_1 = 1; | |
4686 | static int may_insert_fast_tracepoints_1 = 1; | |
4687 | static int may_stop_1 = 1; | |
4688 | ||
4689 | /* Make the user-set values match the real values again. */ | |
4690 | ||
4691 | void | |
4692 | update_target_permissions (void) | |
4693 | { | |
4694 | may_write_registers_1 = may_write_registers; | |
4695 | may_write_memory_1 = may_write_memory; | |
4696 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4697 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4698 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4699 | may_stop_1 = may_stop; | |
4700 | } | |
4701 | ||
4702 | /* The one function handles (most of) the permission flags in the same | |
4703 | way. */ | |
4704 | ||
4705 | static void | |
4706 | set_target_permissions (char *args, int from_tty, | |
4707 | struct cmd_list_element *c) | |
4708 | { | |
4709 | if (target_has_execution) | |
4710 | { | |
4711 | update_target_permissions (); | |
4712 | error (_("Cannot change this setting while the inferior is running.")); | |
4713 | } | |
4714 | ||
4715 | /* Make the real values match the user-changed values. */ | |
4716 | may_write_registers = may_write_registers_1; | |
4717 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4718 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4719 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4720 | may_stop = may_stop_1; | |
4721 | update_observer_mode (); | |
4722 | } | |
4723 | ||
4724 | /* Set memory write permission independently of observer mode. */ | |
4725 | ||
4726 | static void | |
4727 | set_write_memory_permission (char *args, int from_tty, | |
4728 | struct cmd_list_element *c) | |
4729 | { | |
4730 | /* Make the real values match the user-changed values. */ | |
4731 | may_write_memory = may_write_memory_1; | |
4732 | update_observer_mode (); | |
4733 | } | |
4734 | ||
4735 | ||
c906108c | 4736 | void |
fba45db2 | 4737 | initialize_targets (void) |
c906108c SS |
4738 | { |
4739 | init_dummy_target (); | |
4740 | push_target (&dummy_target); | |
4741 | ||
4742 | add_info ("target", target_info, targ_desc); | |
4743 | add_info ("files", target_info, targ_desc); | |
4744 | ||
85c07804 AC |
4745 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
4746 | Set target debugging."), _("\ | |
4747 | Show target debugging."), _("\ | |
333dabeb DJ |
4748 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4749 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
4750 | command."), |
4751 | NULL, | |
920d2a44 | 4752 | show_targetdebug, |
85c07804 | 4753 | &setdebuglist, &showdebuglist); |
3a11626d | 4754 | |
2bc416ba | 4755 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4756 | &trust_readonly, _("\ |
4757 | Set mode for reading from readonly sections."), _("\ | |
4758 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4759 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4760 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4761 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4762 | NULL, |
920d2a44 | 4763 | show_trust_readonly, |
e707bbc2 | 4764 | &setlist, &showlist); |
96baa820 JM |
4765 | |
4766 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4767 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4768 | |
87680a14 JB |
4769 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4770 | _("Print the name of each layer of the internal target stack."), | |
4771 | &maintenanceprintlist); | |
4772 | ||
c6ebd6cf VP |
4773 | add_setshow_boolean_cmd ("target-async", no_class, |
4774 | &target_async_permitted_1, _("\ | |
4775 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4776 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4777 | Tells gdb whether to control the inferior in asynchronous mode."), | |
4778 | set_maintenance_target_async_permitted, | |
4779 | show_maintenance_target_async_permitted, | |
4780 | &setlist, | |
4781 | &showlist); | |
4782 | ||
4e5d721f | 4783 | add_setshow_boolean_cmd ("stack-cache", class_support, |
9cf1b572 | 4784 | &stack_cache_enabled_p_1, _("\ |
4e5d721f DE |
4785 | Set cache use for stack access."), _("\ |
4786 | Show cache use for stack access."), _("\ | |
4787 | When on, use the data cache for all stack access, regardless of any\n\ | |
4788 | configured memory regions. This improves remote performance significantly.\n\ | |
4789 | By default, caching for stack access is on."), | |
4790 | set_stack_cache_enabled_p, | |
4791 | show_stack_cache_enabled_p, | |
4792 | &setlist, &showlist); | |
4793 | ||
d914c394 SS |
4794 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4795 | &may_write_registers_1, _("\ | |
4796 | Set permission to write into registers."), _("\ | |
4797 | Show permission to write into registers."), _("\ | |
4798 | When this permission is on, GDB may write into the target's registers.\n\ | |
4799 | Otherwise, any sort of write attempt will result in an error."), | |
4800 | set_target_permissions, NULL, | |
4801 | &setlist, &showlist); | |
4802 | ||
4803 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4804 | &may_write_memory_1, _("\ | |
4805 | Set permission to write into target memory."), _("\ | |
4806 | Show permission to write into target memory."), _("\ | |
4807 | When this permission is on, GDB may write into the target's memory.\n\ | |
4808 | Otherwise, any sort of write attempt will result in an error."), | |
4809 | set_write_memory_permission, NULL, | |
4810 | &setlist, &showlist); | |
4811 | ||
4812 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4813 | &may_insert_breakpoints_1, _("\ | |
4814 | Set permission to insert breakpoints in the target."), _("\ | |
4815 | Show permission to insert breakpoints in the target."), _("\ | |
4816 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4817 | Otherwise, any sort of insertion attempt will result in an error."), | |
4818 | set_target_permissions, NULL, | |
4819 | &setlist, &showlist); | |
4820 | ||
4821 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4822 | &may_insert_tracepoints_1, _("\ | |
4823 | Set permission to insert tracepoints in the target."), _("\ | |
4824 | Show permission to insert tracepoints in the target."), _("\ | |
4825 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4826 | Otherwise, any sort of insertion attempt will result in an error."), | |
4827 | set_target_permissions, NULL, | |
4828 | &setlist, &showlist); | |
4829 | ||
4830 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4831 | &may_insert_fast_tracepoints_1, _("\ | |
4832 | Set permission to insert fast tracepoints in the target."), _("\ | |
4833 | Show permission to insert fast tracepoints in the target."), _("\ | |
4834 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4835 | Otherwise, any sort of insertion attempt will result in an error."), | |
4836 | set_target_permissions, NULL, | |
4837 | &setlist, &showlist); | |
4838 | ||
4839 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4840 | &may_stop_1, _("\ | |
4841 | Set permission to interrupt or signal the target."), _("\ | |
4842 | Show permission to interrupt or signal the target."), _("\ | |
4843 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4844 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4845 | set_target_permissions, NULL, | |
4846 | &setlist, &showlist); | |
4847 | ||
4848 | ||
8add0441 | 4849 | target_dcache = dcache_init (); |
c906108c | 4850 | } |