Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
6aba47ca | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
7b6bb8da | 4 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
f6519ebc | 5 | Free Software Foundation, Inc. |
7998dfc3 | 6 | |
c906108c SS |
7 | Contributed by Cygnus Support. |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include <errno.h> | |
c906108c SS |
26 | #include "gdb_string.h" |
27 | #include "target.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "symtab.h" | |
30 | #include "inferior.h" | |
31 | #include "bfd.h" | |
32 | #include "symfile.h" | |
33 | #include "objfiles.h" | |
03f2053f | 34 | #include "gdb_wait.h" |
4930751a | 35 | #include "dcache.h" |
c906108c | 36 | #include <signal.h> |
4e052eda | 37 | #include "regcache.h" |
0088c768 | 38 | #include "gdb_assert.h" |
b6591e8b | 39 | #include "gdbcore.h" |
9e35dae4 | 40 | #include "exceptions.h" |
424163ea | 41 | #include "target-descriptions.h" |
e1ac3328 | 42 | #include "gdbthread.h" |
b9db4ced | 43 | #include "solib.h" |
07b82ea5 | 44 | #include "exec.h" |
edb3359d | 45 | #include "inline-frame.h" |
2f4d8875 | 46 | #include "tracepoint.h" |
c906108c | 47 | |
a14ed312 | 48 | static void target_info (char *, int); |
c906108c | 49 | |
a14ed312 | 50 | static void default_terminal_info (char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
e0d24f8d WZ |
55 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
56 | ||
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 | |
39f77062 | 152 | static void debug_to_notice_signals (ptid_t); |
c906108c | 153 | |
94cc34af | 154 | static void debug_to_stop (ptid_t); |
c906108c | 155 | |
c906108c | 156 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 157 | array; the current index into the array; the allocated size of the |
c906108c SS |
158 | array. */ |
159 | struct target_ops **target_structs; | |
160 | unsigned target_struct_size; | |
161 | unsigned target_struct_index; | |
162 | unsigned target_struct_allocsize; | |
163 | #define DEFAULT_ALLOCSIZE 10 | |
164 | ||
165 | /* The initial current target, so that there is always a semi-valid | |
166 | current target. */ | |
167 | ||
168 | static struct target_ops dummy_target; | |
169 | ||
170 | /* Top of target stack. */ | |
171 | ||
258b763a | 172 | static struct target_ops *target_stack; |
c906108c SS |
173 | |
174 | /* The target structure we are currently using to talk to a process | |
175 | or file or whatever "inferior" we have. */ | |
176 | ||
177 | struct target_ops current_target; | |
178 | ||
179 | /* Command list for target. */ | |
180 | ||
181 | static struct cmd_list_element *targetlist = NULL; | |
182 | ||
cf7a04e8 DJ |
183 | /* Nonzero if we should trust readonly sections from the |
184 | executable when reading memory. */ | |
185 | ||
186 | static int trust_readonly = 0; | |
187 | ||
8defab1a DJ |
188 | /* Nonzero if we should show true memory content including |
189 | memory breakpoint inserted by gdb. */ | |
190 | ||
191 | static int show_memory_breakpoints = 0; | |
192 | ||
d914c394 SS |
193 | /* These globals control whether GDB attempts to perform these |
194 | operations; they are useful for targets that need to prevent | |
195 | inadvertant disruption, such as in non-stop mode. */ | |
196 | ||
197 | int may_write_registers = 1; | |
198 | ||
199 | int may_write_memory = 1; | |
200 | ||
201 | int may_insert_breakpoints = 1; | |
202 | ||
203 | int may_insert_tracepoints = 1; | |
204 | ||
205 | int may_insert_fast_tracepoints = 1; | |
206 | ||
207 | int may_stop = 1; | |
208 | ||
c906108c SS |
209 | /* Non-zero if we want to see trace of target level stuff. */ |
210 | ||
211 | static int targetdebug = 0; | |
920d2a44 AC |
212 | static void |
213 | show_targetdebug (struct ui_file *file, int from_tty, | |
214 | struct cmd_list_element *c, const char *value) | |
215 | { | |
216 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
217 | } | |
c906108c | 218 | |
a14ed312 | 219 | static void setup_target_debug (void); |
c906108c | 220 | |
4e5d721f DE |
221 | /* The option sets this. */ |
222 | static int stack_cache_enabled_p_1 = 1; | |
223 | /* And set_stack_cache_enabled_p updates this. | |
224 | The reason for the separation is so that we don't flush the cache for | |
225 | on->on transitions. */ | |
226 | static int stack_cache_enabled_p = 1; | |
227 | ||
228 | /* This is called *after* the stack-cache has been set. | |
229 | Flush the cache for off->on and on->off transitions. | |
230 | There's no real need to flush the cache for on->off transitions, | |
231 | except cleanliness. */ | |
232 | ||
233 | static void | |
234 | set_stack_cache_enabled_p (char *args, int from_tty, | |
235 | struct cmd_list_element *c) | |
236 | { | |
237 | if (stack_cache_enabled_p != stack_cache_enabled_p_1) | |
238 | target_dcache_invalidate (); | |
239 | ||
240 | stack_cache_enabled_p = stack_cache_enabled_p_1; | |
241 | } | |
242 | ||
243 | static void | |
244 | show_stack_cache_enabled_p (struct ui_file *file, int from_tty, | |
245 | struct cmd_list_element *c, const char *value) | |
246 | { | |
247 | fprintf_filtered (file, _("Cache use for stack accesses is %s.\n"), value); | |
248 | } | |
249 | ||
250 | /* Cache of memory operations, to speed up remote access. */ | |
251 | static DCACHE *target_dcache; | |
252 | ||
253 | /* Invalidate the target dcache. */ | |
254 | ||
255 | void | |
256 | target_dcache_invalidate (void) | |
257 | { | |
258 | dcache_invalidate (target_dcache); | |
259 | } | |
4930751a | 260 | |
c906108c SS |
261 | /* The user just typed 'target' without the name of a target. */ |
262 | ||
c906108c | 263 | static void |
fba45db2 | 264 | target_command (char *arg, int from_tty) |
c906108c SS |
265 | { |
266 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
267 | gdb_stdout); | |
268 | } | |
269 | ||
c35b1492 PA |
270 | /* Default target_has_* methods for process_stratum targets. */ |
271 | ||
272 | int | |
273 | default_child_has_all_memory (struct target_ops *ops) | |
274 | { | |
275 | /* If no inferior selected, then we can't read memory here. */ | |
276 | if (ptid_equal (inferior_ptid, null_ptid)) | |
277 | return 0; | |
278 | ||
279 | return 1; | |
280 | } | |
281 | ||
282 | int | |
283 | default_child_has_memory (struct target_ops *ops) | |
284 | { | |
285 | /* If no inferior selected, then we can't read memory here. */ | |
286 | if (ptid_equal (inferior_ptid, null_ptid)) | |
287 | return 0; | |
288 | ||
289 | return 1; | |
290 | } | |
291 | ||
292 | int | |
293 | default_child_has_stack (struct target_ops *ops) | |
294 | { | |
295 | /* If no inferior selected, there's no stack. */ | |
296 | if (ptid_equal (inferior_ptid, null_ptid)) | |
297 | return 0; | |
298 | ||
299 | return 1; | |
300 | } | |
301 | ||
302 | int | |
303 | default_child_has_registers (struct target_ops *ops) | |
304 | { | |
305 | /* Can't read registers from no inferior. */ | |
306 | if (ptid_equal (inferior_ptid, null_ptid)) | |
307 | return 0; | |
308 | ||
309 | return 1; | |
310 | } | |
311 | ||
312 | int | |
aeaec162 | 313 | default_child_has_execution (struct target_ops *ops, ptid_t the_ptid) |
c35b1492 PA |
314 | { |
315 | /* If there's no thread selected, then we can't make it run through | |
316 | hoops. */ | |
aeaec162 | 317 | if (ptid_equal (the_ptid, null_ptid)) |
c35b1492 PA |
318 | return 0; |
319 | ||
320 | return 1; | |
321 | } | |
322 | ||
323 | ||
324 | int | |
325 | target_has_all_memory_1 (void) | |
326 | { | |
327 | struct target_ops *t; | |
328 | ||
329 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
330 | if (t->to_has_all_memory (t)) | |
331 | return 1; | |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
336 | int | |
337 | target_has_memory_1 (void) | |
338 | { | |
339 | struct target_ops *t; | |
340 | ||
341 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
342 | if (t->to_has_memory (t)) | |
343 | return 1; | |
344 | ||
345 | return 0; | |
346 | } | |
347 | ||
348 | int | |
349 | target_has_stack_1 (void) | |
350 | { | |
351 | struct target_ops *t; | |
352 | ||
353 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
354 | if (t->to_has_stack (t)) | |
355 | return 1; | |
356 | ||
357 | return 0; | |
358 | } | |
359 | ||
360 | int | |
361 | target_has_registers_1 (void) | |
362 | { | |
363 | struct target_ops *t; | |
364 | ||
365 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
366 | if (t->to_has_registers (t)) | |
367 | return 1; | |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
372 | int | |
aeaec162 | 373 | target_has_execution_1 (ptid_t the_ptid) |
c35b1492 PA |
374 | { |
375 | struct target_ops *t; | |
376 | ||
377 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
aeaec162 | 378 | if (t->to_has_execution (t, the_ptid)) |
c35b1492 PA |
379 | return 1; |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
aeaec162 TT |
384 | int |
385 | target_has_execution_current (void) | |
386 | { | |
387 | return target_has_execution_1 (inferior_ptid); | |
388 | } | |
389 | ||
c906108c SS |
390 | /* Add a possible target architecture to the list. */ |
391 | ||
392 | void | |
fba45db2 | 393 | add_target (struct target_ops *t) |
c906108c | 394 | { |
0088c768 | 395 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
396 | if (t->to_xfer_partial == NULL) |
397 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 398 | |
c35b1492 PA |
399 | if (t->to_has_all_memory == NULL) |
400 | t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero; | |
401 | ||
402 | if (t->to_has_memory == NULL) | |
403 | t->to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
404 | ||
405 | if (t->to_has_stack == NULL) | |
406 | t->to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
407 | ||
408 | if (t->to_has_registers == NULL) | |
409 | t->to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
410 | ||
411 | if (t->to_has_execution == NULL) | |
aeaec162 | 412 | t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero; |
c35b1492 | 413 | |
c906108c SS |
414 | if (!target_structs) |
415 | { | |
416 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
417 | target_structs = (struct target_ops **) xmalloc | |
418 | (target_struct_allocsize * sizeof (*target_structs)); | |
419 | } | |
420 | if (target_struct_size >= target_struct_allocsize) | |
421 | { | |
422 | target_struct_allocsize *= 2; | |
423 | target_structs = (struct target_ops **) | |
c5aa993b JM |
424 | xrealloc ((char *) target_structs, |
425 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
426 | } |
427 | target_structs[target_struct_size++] = t; | |
c906108c SS |
428 | |
429 | if (targetlist == NULL) | |
1bedd215 AC |
430 | add_prefix_cmd ("target", class_run, target_command, _("\ |
431 | Connect to a target machine or process.\n\ | |
c906108c SS |
432 | The first argument is the type or protocol of the target machine.\n\ |
433 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
434 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 435 | `help target ' followed by the protocol name."), |
c906108c SS |
436 | &targetlist, "target ", 0, &cmdlist); |
437 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
438 | } | |
439 | ||
440 | /* Stub functions */ | |
441 | ||
442 | void | |
fba45db2 | 443 | target_ignore (void) |
c906108c SS |
444 | { |
445 | } | |
446 | ||
7d85a9c0 JB |
447 | void |
448 | target_kill (void) | |
449 | { | |
450 | struct target_ops *t; | |
451 | ||
452 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
453 | if (t->to_kill != NULL) | |
454 | { | |
455 | if (targetdebug) | |
456 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
457 | ||
458 | t->to_kill (t); | |
459 | return; | |
460 | } | |
461 | ||
462 | noprocess (); | |
463 | } | |
464 | ||
11cf8741 JM |
465 | void |
466 | target_load (char *arg, int from_tty) | |
467 | { | |
4e5d721f | 468 | target_dcache_invalidate (); |
11cf8741 JM |
469 | (*current_target.to_load) (arg, from_tty); |
470 | } | |
471 | ||
947b8855 PA |
472 | void |
473 | target_create_inferior (char *exec_file, char *args, | |
474 | char **env, int from_tty) | |
136d6dae VP |
475 | { |
476 | struct target_ops *t; | |
5d502164 | 477 | |
136d6dae VP |
478 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
479 | { | |
480 | if (t->to_create_inferior != NULL) | |
481 | { | |
482 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
483 | if (targetdebug) |
484 | fprintf_unfiltered (gdb_stdlog, | |
485 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
486 | exec_file, args, from_tty); | |
136d6dae VP |
487 | return; |
488 | } | |
489 | } | |
490 | ||
491 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 492 | _("could not find a target to create inferior")); |
136d6dae VP |
493 | } |
494 | ||
d9d2d8b6 PA |
495 | void |
496 | target_terminal_inferior (void) | |
497 | { | |
498 | /* A background resume (``run&'') should leave GDB in control of the | |
c378eb4e | 499 | terminal. Use target_can_async_p, not target_is_async_p, since at |
ba7f6c64 VP |
500 | this point the target is not async yet. However, if sync_execution |
501 | is not set, we know it will become async prior to resume. */ | |
502 | if (target_can_async_p () && !sync_execution) | |
d9d2d8b6 PA |
503 | return; |
504 | ||
505 | /* If GDB is resuming the inferior in the foreground, install | |
506 | inferior's terminal modes. */ | |
507 | (*current_target.to_terminal_inferior) (); | |
508 | } | |
136d6dae | 509 | |
c906108c | 510 | static int |
fba45db2 KB |
511 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
512 | struct target_ops *t) | |
c906108c | 513 | { |
c378eb4e MS |
514 | errno = EIO; /* Can't read/write this location. */ |
515 | return 0; /* No bytes handled. */ | |
c906108c SS |
516 | } |
517 | ||
518 | static void | |
fba45db2 | 519 | tcomplain (void) |
c906108c | 520 | { |
8a3fe4f8 | 521 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
522 | current_target.to_shortname); |
523 | } | |
524 | ||
525 | void | |
fba45db2 | 526 | noprocess (void) |
c906108c | 527 | { |
8a3fe4f8 | 528 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
529 | } |
530 | ||
c906108c | 531 | static void |
fba45db2 | 532 | default_terminal_info (char *args, int from_tty) |
c906108c | 533 | { |
a3f17187 | 534 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
535 | } |
536 | ||
0ef643c8 JB |
537 | /* A default implementation for the to_get_ada_task_ptid target method. |
538 | ||
539 | This function builds the PTID by using both LWP and TID as part of | |
540 | the PTID lwp and tid elements. The pid used is the pid of the | |
541 | inferior_ptid. */ | |
542 | ||
2c0b251b | 543 | static ptid_t |
0ef643c8 JB |
544 | default_get_ada_task_ptid (long lwp, long tid) |
545 | { | |
546 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
547 | } | |
548 | ||
7998dfc3 AC |
549 | /* Go through the target stack from top to bottom, copying over zero |
550 | entries in current_target, then filling in still empty entries. In | |
551 | effect, we are doing class inheritance through the pushed target | |
552 | vectors. | |
553 | ||
554 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
555 | is currently implemented, is that it discards any knowledge of | |
556 | which target an inherited method originally belonged to. | |
557 | Consequently, new new target methods should instead explicitly and | |
558 | locally search the target stack for the target that can handle the | |
559 | request. */ | |
c906108c SS |
560 | |
561 | static void | |
7998dfc3 | 562 | update_current_target (void) |
c906108c | 563 | { |
7998dfc3 AC |
564 | struct target_ops *t; |
565 | ||
08d8bcd7 | 566 | /* First, reset current's contents. */ |
7998dfc3 AC |
567 | memset (¤t_target, 0, sizeof (current_target)); |
568 | ||
569 | #define INHERIT(FIELD, TARGET) \ | |
570 | if (!current_target.FIELD) \ | |
571 | current_target.FIELD = (TARGET)->FIELD | |
572 | ||
573 | for (t = target_stack; t; t = t->beneath) | |
574 | { | |
575 | INHERIT (to_shortname, t); | |
576 | INHERIT (to_longname, t); | |
577 | INHERIT (to_doc, t); | |
b52323fa UW |
578 | /* Do not inherit to_open. */ |
579 | /* Do not inherit to_close. */ | |
136d6dae | 580 | /* Do not inherit to_attach. */ |
7998dfc3 | 581 | INHERIT (to_post_attach, t); |
dc177b7a | 582 | INHERIT (to_attach_no_wait, t); |
136d6dae | 583 | /* Do not inherit to_detach. */ |
597320e7 | 584 | /* Do not inherit to_disconnect. */ |
28439f5e | 585 | /* Do not inherit to_resume. */ |
117de6a9 | 586 | /* Do not inherit to_wait. */ |
28439f5e PA |
587 | /* Do not inherit to_fetch_registers. */ |
588 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 589 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 590 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
591 | INHERIT (to_files_info, t); |
592 | INHERIT (to_insert_breakpoint, t); | |
593 | INHERIT (to_remove_breakpoint, t); | |
594 | INHERIT (to_can_use_hw_breakpoint, t); | |
595 | INHERIT (to_insert_hw_breakpoint, t); | |
596 | INHERIT (to_remove_hw_breakpoint, t); | |
597 | INHERIT (to_insert_watchpoint, t); | |
598 | INHERIT (to_remove_watchpoint, t); | |
599 | INHERIT (to_stopped_data_address, t); | |
74174d2e | 600 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 601 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
602 | INHERIT (to_stopped_by_watchpoint, t); |
603 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 604 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
0cf6dd15 | 605 | INHERIT (to_can_accel_watchpoint_condition, t); |
7998dfc3 AC |
606 | INHERIT (to_terminal_init, t); |
607 | INHERIT (to_terminal_inferior, t); | |
608 | INHERIT (to_terminal_ours_for_output, t); | |
609 | INHERIT (to_terminal_ours, t); | |
610 | INHERIT (to_terminal_save_ours, t); | |
611 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 612 | /* Do not inherit to_kill. */ |
7998dfc3 | 613 | INHERIT (to_load, t); |
136d6dae | 614 | /* Do no inherit to_create_inferior. */ |
7998dfc3 | 615 | INHERIT (to_post_startup_inferior, t); |
7998dfc3 AC |
616 | INHERIT (to_insert_fork_catchpoint, t); |
617 | INHERIT (to_remove_fork_catchpoint, t); | |
618 | INHERIT (to_insert_vfork_catchpoint, t); | |
619 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 620 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
621 | INHERIT (to_insert_exec_catchpoint, t); |
622 | INHERIT (to_remove_exec_catchpoint, t); | |
a96d9b2e | 623 | INHERIT (to_set_syscall_catchpoint, t); |
7998dfc3 | 624 | INHERIT (to_has_exited, t); |
82892036 | 625 | /* Do not inherit to_mourn_inferior. */ |
7998dfc3 AC |
626 | INHERIT (to_can_run, t); |
627 | INHERIT (to_notice_signals, t); | |
28439f5e PA |
628 | /* Do not inherit to_thread_alive. */ |
629 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 630 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 | 631 | INHERIT (to_extra_thread_info, t); |
4694da01 | 632 | INHERIT (to_thread_name, t); |
7998dfc3 | 633 | INHERIT (to_stop, t); |
4b8a223f | 634 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 635 | INHERIT (to_rcmd, t); |
7998dfc3 | 636 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 637 | INHERIT (to_log_command, t); |
7998dfc3 | 638 | INHERIT (to_stratum, t); |
c378eb4e MS |
639 | /* Do not inherit to_has_all_memory. */ |
640 | /* Do not inherit to_has_memory. */ | |
641 | /* Do not inherit to_has_stack. */ | |
642 | /* Do not inherit to_has_registers. */ | |
643 | /* Do not inherit to_has_execution. */ | |
7998dfc3 | 644 | INHERIT (to_has_thread_control, t); |
7998dfc3 AC |
645 | INHERIT (to_can_async_p, t); |
646 | INHERIT (to_is_async_p, t); | |
647 | INHERIT (to_async, t); | |
b84876c2 | 648 | INHERIT (to_async_mask, t); |
7998dfc3 AC |
649 | INHERIT (to_find_memory_regions, t); |
650 | INHERIT (to_make_corefile_notes, t); | |
6b04bdb7 MS |
651 | INHERIT (to_get_bookmark, t); |
652 | INHERIT (to_goto_bookmark, t); | |
117de6a9 | 653 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 654 | INHERIT (to_can_execute_reverse, t); |
c2250ad1 | 655 | INHERIT (to_thread_architecture, t); |
424163ea | 656 | /* Do not inherit to_read_description. */ |
0ef643c8 | 657 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 658 | /* Do not inherit to_search_memory. */ |
8a305172 | 659 | INHERIT (to_supports_multi_process, t); |
35b1e5cc SS |
660 | INHERIT (to_trace_init, t); |
661 | INHERIT (to_download_tracepoint, t); | |
662 | INHERIT (to_download_trace_state_variable, t); | |
663 | INHERIT (to_trace_set_readonly_regions, t); | |
664 | INHERIT (to_trace_start, t); | |
665 | INHERIT (to_get_trace_status, t); | |
666 | INHERIT (to_trace_stop, t); | |
667 | INHERIT (to_trace_find, t); | |
668 | INHERIT (to_get_trace_state_variable_value, t); | |
00bf0b85 SS |
669 | INHERIT (to_save_trace_data, t); |
670 | INHERIT (to_upload_tracepoints, t); | |
671 | INHERIT (to_upload_trace_state_variables, t); | |
672 | INHERIT (to_get_raw_trace_data, t); | |
35b1e5cc | 673 | INHERIT (to_set_disconnected_tracing, t); |
4daf5ac0 | 674 | INHERIT (to_set_circular_trace_buffer, t); |
711e434b | 675 | INHERIT (to_get_tib_address, t); |
d914c394 | 676 | INHERIT (to_set_permissions, t); |
0fb4aa4b PA |
677 | INHERIT (to_static_tracepoint_marker_at, t); |
678 | INHERIT (to_static_tracepoint_markers_by_strid, t); | |
b3b9301e | 679 | INHERIT (to_traceframe_info, t); |
7998dfc3 | 680 | INHERIT (to_magic, t); |
fd79ecee | 681 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
682 | /* Do not inherit to_flash_erase. */ |
683 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
684 | } |
685 | #undef INHERIT | |
686 | ||
687 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
688 | it. Some entries are defaulted to a method that print an error, |
689 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
690 | |
691 | #define de_fault(field, value) \ | |
7998dfc3 AC |
692 | if (!current_target.field) \ |
693 | current_target.field = value | |
0d06e24b | 694 | |
2bc416ba DJ |
695 | de_fault (to_open, |
696 | (void (*) (char *, int)) | |
0d06e24b | 697 | tcomplain); |
2bc416ba DJ |
698 | de_fault (to_close, |
699 | (void (*) (int)) | |
0d06e24b | 700 | target_ignore); |
2bc416ba DJ |
701 | de_fault (to_post_attach, |
702 | (void (*) (int)) | |
0d06e24b | 703 | target_ignore); |
2bc416ba | 704 | de_fault (to_prepare_to_store, |
316f2060 | 705 | (void (*) (struct regcache *)) |
0d06e24b | 706 | noprocess); |
2bc416ba | 707 | de_fault (deprecated_xfer_memory, |
3e43a32a MS |
708 | (int (*) (CORE_ADDR, gdb_byte *, int, int, |
709 | struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 710 | nomemory); |
2bc416ba DJ |
711 | de_fault (to_files_info, |
712 | (void (*) (struct target_ops *)) | |
0d06e24b | 713 | target_ignore); |
2bc416ba | 714 | de_fault (to_insert_breakpoint, |
0d06e24b | 715 | memory_insert_breakpoint); |
2bc416ba | 716 | de_fault (to_remove_breakpoint, |
0d06e24b | 717 | memory_remove_breakpoint); |
ccaa32c7 GS |
718 | de_fault (to_can_use_hw_breakpoint, |
719 | (int (*) (int, int, int)) | |
720 | return_zero); | |
721 | de_fault (to_insert_hw_breakpoint, | |
a6d9a66e | 722 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
723 | return_minus_one); |
724 | de_fault (to_remove_hw_breakpoint, | |
a6d9a66e | 725 | (int (*) (struct gdbarch *, struct bp_target_info *)) |
ccaa32c7 GS |
726 | return_minus_one); |
727 | de_fault (to_insert_watchpoint, | |
0cf6dd15 | 728 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
729 | return_minus_one); |
730 | de_fault (to_remove_watchpoint, | |
0cf6dd15 | 731 | (int (*) (CORE_ADDR, int, int, struct expression *)) |
ccaa32c7 GS |
732 | return_minus_one); |
733 | de_fault (to_stopped_by_watchpoint, | |
734 | (int (*) (void)) | |
735 | return_zero); | |
736 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 737 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 738 | return_zero); |
5009afc5 AS |
739 | de_fault (to_watchpoint_addr_within_range, |
740 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
741 | de_fault (to_region_ok_for_hw_watchpoint, |
742 | default_region_ok_for_hw_watchpoint); | |
0cf6dd15 TJB |
743 | de_fault (to_can_accel_watchpoint_condition, |
744 | (int (*) (CORE_ADDR, int, int, struct expression *)) | |
745 | return_zero); | |
2bc416ba DJ |
746 | de_fault (to_terminal_init, |
747 | (void (*) (void)) | |
0d06e24b | 748 | target_ignore); |
2bc416ba DJ |
749 | de_fault (to_terminal_inferior, |
750 | (void (*) (void)) | |
0d06e24b | 751 | target_ignore); |
2bc416ba DJ |
752 | de_fault (to_terminal_ours_for_output, |
753 | (void (*) (void)) | |
0d06e24b | 754 | target_ignore); |
2bc416ba DJ |
755 | de_fault (to_terminal_ours, |
756 | (void (*) (void)) | |
0d06e24b | 757 | target_ignore); |
2bc416ba DJ |
758 | de_fault (to_terminal_save_ours, |
759 | (void (*) (void)) | |
a790ad35 | 760 | target_ignore); |
2bc416ba | 761 | de_fault (to_terminal_info, |
0d06e24b | 762 | default_terminal_info); |
2bc416ba DJ |
763 | de_fault (to_load, |
764 | (void (*) (char *, int)) | |
0d06e24b | 765 | tcomplain); |
2bc416ba DJ |
766 | de_fault (to_post_startup_inferior, |
767 | (void (*) (ptid_t)) | |
0d06e24b | 768 | target_ignore); |
2bc416ba | 769 | de_fault (to_insert_fork_catchpoint, |
77b06cd7 TJB |
770 | (int (*) (int)) |
771 | return_one); | |
2bc416ba DJ |
772 | de_fault (to_remove_fork_catchpoint, |
773 | (int (*) (int)) | |
77b06cd7 | 774 | return_one); |
2bc416ba | 775 | de_fault (to_insert_vfork_catchpoint, |
77b06cd7 TJB |
776 | (int (*) (int)) |
777 | return_one); | |
2bc416ba DJ |
778 | de_fault (to_remove_vfork_catchpoint, |
779 | (int (*) (int)) | |
77b06cd7 | 780 | return_one); |
2bc416ba | 781 | de_fault (to_insert_exec_catchpoint, |
77b06cd7 TJB |
782 | (int (*) (int)) |
783 | return_one); | |
2bc416ba DJ |
784 | de_fault (to_remove_exec_catchpoint, |
785 | (int (*) (int)) | |
77b06cd7 | 786 | return_one); |
a96d9b2e SDJ |
787 | de_fault (to_set_syscall_catchpoint, |
788 | (int (*) (int, int, int, int, int *)) | |
77b06cd7 | 789 | return_one); |
2bc416ba DJ |
790 | de_fault (to_has_exited, |
791 | (int (*) (int, int, int *)) | |
0d06e24b | 792 | return_zero); |
2bc416ba | 793 | de_fault (to_can_run, |
0d06e24b | 794 | return_zero); |
2bc416ba DJ |
795 | de_fault (to_notice_signals, |
796 | (void (*) (ptid_t)) | |
0d06e24b | 797 | target_ignore); |
2bc416ba DJ |
798 | de_fault (to_extra_thread_info, |
799 | (char *(*) (struct thread_info *)) | |
0d06e24b | 800 | return_zero); |
4694da01 TT |
801 | de_fault (to_thread_name, |
802 | (char *(*) (struct thread_info *)) | |
803 | return_zero); | |
2bc416ba | 804 | de_fault (to_stop, |
94cc34af | 805 | (void (*) (ptid_t)) |
0d06e24b | 806 | target_ignore); |
cf7a04e8 | 807 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
808 | de_fault (to_rcmd, |
809 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 810 | tcomplain); |
2bc416ba DJ |
811 | de_fault (to_pid_to_exec_file, |
812 | (char *(*) (int)) | |
0d06e24b | 813 | return_zero); |
2bc416ba DJ |
814 | de_fault (to_async, |
815 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 816 | tcomplain); |
b84876c2 PA |
817 | de_fault (to_async_mask, |
818 | (int (*) (int)) | |
819 | return_one); | |
c2250ad1 UW |
820 | de_fault (to_thread_architecture, |
821 | default_thread_architecture); | |
424163ea | 822 | current_target.to_read_description = NULL; |
0ef643c8 JB |
823 | de_fault (to_get_ada_task_ptid, |
824 | (ptid_t (*) (long, long)) | |
825 | default_get_ada_task_ptid); | |
8a305172 PA |
826 | de_fault (to_supports_multi_process, |
827 | (int (*) (void)) | |
828 | return_zero); | |
35b1e5cc SS |
829 | de_fault (to_trace_init, |
830 | (void (*) (void)) | |
831 | tcomplain); | |
832 | de_fault (to_download_tracepoint, | |
833 | (void (*) (struct breakpoint *)) | |
834 | tcomplain); | |
835 | de_fault (to_download_trace_state_variable, | |
836 | (void (*) (struct trace_state_variable *)) | |
837 | tcomplain); | |
838 | de_fault (to_trace_set_readonly_regions, | |
839 | (void (*) (void)) | |
840 | tcomplain); | |
841 | de_fault (to_trace_start, | |
842 | (void (*) (void)) | |
843 | tcomplain); | |
844 | de_fault (to_get_trace_status, | |
00bf0b85 | 845 | (int (*) (struct trace_status *)) |
35b1e5cc SS |
846 | return_minus_one); |
847 | de_fault (to_trace_stop, | |
848 | (void (*) (void)) | |
849 | tcomplain); | |
850 | de_fault (to_trace_find, | |
851 | (int (*) (enum trace_find_type, int, ULONGEST, ULONGEST, int *)) | |
4136fdd2 | 852 | return_minus_one); |
35b1e5cc SS |
853 | de_fault (to_get_trace_state_variable_value, |
854 | (int (*) (int, LONGEST *)) | |
855 | return_zero); | |
00bf0b85 | 856 | de_fault (to_save_trace_data, |
011aacb0 | 857 | (int (*) (const char *)) |
00bf0b85 SS |
858 | tcomplain); |
859 | de_fault (to_upload_tracepoints, | |
860 | (int (*) (struct uploaded_tp **)) | |
861 | return_zero); | |
862 | de_fault (to_upload_trace_state_variables, | |
863 | (int (*) (struct uploaded_tsv **)) | |
864 | return_zero); | |
865 | de_fault (to_get_raw_trace_data, | |
866 | (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST)) | |
867 | tcomplain); | |
35b1e5cc SS |
868 | de_fault (to_set_disconnected_tracing, |
869 | (void (*) (int)) | |
4daf5ac0 SS |
870 | target_ignore); |
871 | de_fault (to_set_circular_trace_buffer, | |
872 | (void (*) (int)) | |
873 | target_ignore); | |
711e434b PM |
874 | de_fault (to_get_tib_address, |
875 | (int (*) (ptid_t, CORE_ADDR *)) | |
876 | tcomplain); | |
d914c394 SS |
877 | de_fault (to_set_permissions, |
878 | (void (*) (void)) | |
879 | target_ignore); | |
0fb4aa4b PA |
880 | de_fault (to_static_tracepoint_marker_at, |
881 | (int (*) (CORE_ADDR, struct static_tracepoint_marker *)) | |
882 | return_zero); | |
883 | de_fault (to_static_tracepoint_markers_by_strid, | |
884 | (VEC(static_tracepoint_marker_p) * (*) (const char *)) | |
885 | tcomplain); | |
b3b9301e PA |
886 | de_fault (to_traceframe_info, |
887 | (struct traceframe_info * (*) (void)) | |
888 | tcomplain); | |
c906108c | 889 | #undef de_fault |
c906108c | 890 | |
7998dfc3 AC |
891 | /* Finally, position the target-stack beneath the squashed |
892 | "current_target". That way code looking for a non-inherited | |
893 | target method can quickly and simply find it. */ | |
894 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
895 | |
896 | if (targetdebug) | |
897 | setup_target_debug (); | |
c906108c SS |
898 | } |
899 | ||
900 | /* Push a new target type into the stack of the existing target accessors, | |
901 | possibly superseding some of the existing accessors. | |
902 | ||
c906108c SS |
903 | Rather than allow an empty stack, we always have the dummy target at |
904 | the bottom stratum, so we can call the function vectors without | |
905 | checking them. */ | |
906 | ||
b26a4dcb | 907 | void |
fba45db2 | 908 | push_target (struct target_ops *t) |
c906108c | 909 | { |
258b763a | 910 | struct target_ops **cur; |
c906108c SS |
911 | |
912 | /* Check magic number. If wrong, it probably means someone changed | |
913 | the struct definition, but not all the places that initialize one. */ | |
914 | if (t->to_magic != OPS_MAGIC) | |
915 | { | |
c5aa993b JM |
916 | fprintf_unfiltered (gdb_stderr, |
917 | "Magic number of %s target struct wrong\n", | |
918 | t->to_shortname); | |
3e43a32a MS |
919 | internal_error (__FILE__, __LINE__, |
920 | _("failed internal consistency check")); | |
c906108c SS |
921 | } |
922 | ||
258b763a AC |
923 | /* Find the proper stratum to install this target in. */ |
924 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 925 | { |
258b763a | 926 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
927 | break; |
928 | } | |
929 | ||
258b763a | 930 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 931 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
932 | targets to CUR, and not just those at this stratum level. */ |
933 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
934 | { | |
935 | /* There's already something at this stratum level. Close it, | |
936 | and un-hook it from the stack. */ | |
937 | struct target_ops *tmp = (*cur); | |
5d502164 | 938 | |
258b763a AC |
939 | (*cur) = (*cur)->beneath; |
940 | tmp->beneath = NULL; | |
f1c07ab0 | 941 | target_close (tmp, 0); |
258b763a | 942 | } |
c906108c SS |
943 | |
944 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
945 | t->beneath = (*cur); |
946 | (*cur) = t; | |
c906108c SS |
947 | |
948 | update_current_target (); | |
c906108c SS |
949 | } |
950 | ||
2bc416ba | 951 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
952 | Return how many times it was removed (0 or 1). */ |
953 | ||
954 | int | |
fba45db2 | 955 | unpush_target (struct target_ops *t) |
c906108c | 956 | { |
258b763a AC |
957 | struct target_ops **cur; |
958 | struct target_ops *tmp; | |
c906108c | 959 | |
c8d104ad PA |
960 | if (t->to_stratum == dummy_stratum) |
961 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 962 | _("Attempt to unpush the dummy target")); |
c8d104ad | 963 | |
c906108c | 964 | /* Look for the specified target. Note that we assume that a target |
c378eb4e | 965 | can only occur once in the target stack. */ |
c906108c | 966 | |
258b763a AC |
967 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
968 | { | |
969 | if ((*cur) == t) | |
970 | break; | |
971 | } | |
c906108c | 972 | |
258b763a | 973 | if ((*cur) == NULL) |
c378eb4e | 974 | return 0; /* Didn't find target_ops, quit now. */ |
c906108c | 975 | |
5269965e AC |
976 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
977 | unconditional by moving it to before the above check that the | |
978 | target was in the target stack (something about "Change the way | |
979 | pushing and popping of targets work to support target overlays | |
980 | and inheritance"). This doesn't make much sense - only open | |
981 | targets should be closed. */ | |
982 | target_close (t, 0); | |
983 | ||
c378eb4e | 984 | /* Unchain the target. */ |
258b763a AC |
985 | tmp = (*cur); |
986 | (*cur) = (*cur)->beneath; | |
987 | tmp->beneath = NULL; | |
c906108c SS |
988 | |
989 | update_current_target (); | |
c906108c SS |
990 | |
991 | return 1; | |
992 | } | |
993 | ||
994 | void | |
fba45db2 | 995 | pop_target (void) |
c906108c | 996 | { |
c378eb4e | 997 | target_close (target_stack, 0); /* Let it clean up. */ |
258b763a | 998 | if (unpush_target (target_stack) == 1) |
c906108c SS |
999 | return; |
1000 | ||
c5aa993b JM |
1001 | fprintf_unfiltered (gdb_stderr, |
1002 | "pop_target couldn't find target %s\n", | |
1003 | current_target.to_shortname); | |
5d502164 MS |
1004 | internal_error (__FILE__, __LINE__, |
1005 | _("failed internal consistency check")); | |
c906108c SS |
1006 | } |
1007 | ||
aa76d38d | 1008 | void |
87ab71f0 | 1009 | pop_all_targets_above (enum strata above_stratum, int quitting) |
aa76d38d | 1010 | { |
87ab71f0 | 1011 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 1012 | { |
b52323fa | 1013 | target_close (target_stack, quitting); |
aa76d38d PA |
1014 | if (!unpush_target (target_stack)) |
1015 | { | |
1016 | fprintf_unfiltered (gdb_stderr, | |
1017 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 1018 | target_stack->to_shortname); |
aa76d38d PA |
1019 | internal_error (__FILE__, __LINE__, |
1020 | _("failed internal consistency check")); | |
1021 | break; | |
1022 | } | |
1023 | } | |
1024 | } | |
1025 | ||
87ab71f0 PA |
1026 | void |
1027 | pop_all_targets (int quitting) | |
1028 | { | |
1029 | pop_all_targets_above (dummy_stratum, quitting); | |
1030 | } | |
1031 | ||
c0edd9ed JK |
1032 | /* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */ |
1033 | ||
1034 | int | |
1035 | target_is_pushed (struct target_ops *t) | |
1036 | { | |
1037 | struct target_ops **cur; | |
1038 | ||
1039 | /* Check magic number. If wrong, it probably means someone changed | |
1040 | the struct definition, but not all the places that initialize one. */ | |
1041 | if (t->to_magic != OPS_MAGIC) | |
1042 | { | |
1043 | fprintf_unfiltered (gdb_stderr, | |
1044 | "Magic number of %s target struct wrong\n", | |
1045 | t->to_shortname); | |
3e43a32a MS |
1046 | internal_error (__FILE__, __LINE__, |
1047 | _("failed internal consistency check")); | |
c0edd9ed JK |
1048 | } |
1049 | ||
1050 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
1051 | if (*cur == t) | |
1052 | return 1; | |
1053 | ||
1054 | return 0; | |
1055 | } | |
1056 | ||
72f5cf0e | 1057 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
1058 | current thread's thread-local storage with offset OFFSET. */ |
1059 | CORE_ADDR | |
1060 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
1061 | { | |
1062 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
1063 | struct target_ops *target; |
1064 | ||
1065 | for (target = current_target.beneath; | |
1066 | target != NULL; | |
1067 | target = target->beneath) | |
1068 | { | |
1069 | if (target->to_get_thread_local_address != NULL) | |
1070 | break; | |
1071 | } | |
9e35dae4 | 1072 | |
117de6a9 | 1073 | if (target != NULL |
1cf3db46 | 1074 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch)) |
9e35dae4 DJ |
1075 | { |
1076 | ptid_t ptid = inferior_ptid; | |
1077 | volatile struct gdb_exception ex; | |
1078 | ||
1079 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1080 | { | |
1081 | CORE_ADDR lm_addr; | |
1082 | ||
1083 | /* Fetch the load module address for this objfile. */ | |
1cf3db46 | 1084 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch, |
9e35dae4 DJ |
1085 | objfile); |
1086 | /* If it's 0, throw the appropriate exception. */ | |
1087 | if (lm_addr == 0) | |
1088 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
1089 | _("TLS load module not found")); | |
1090 | ||
3e43a32a MS |
1091 | addr = target->to_get_thread_local_address (target, ptid, |
1092 | lm_addr, offset); | |
9e35dae4 DJ |
1093 | } |
1094 | /* If an error occurred, print TLS related messages here. Otherwise, | |
1095 | throw the error to some higher catcher. */ | |
1096 | if (ex.reason < 0) | |
1097 | { | |
1098 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
1099 | ||
1100 | switch (ex.error) | |
1101 | { | |
1102 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
3e43a32a MS |
1103 | error (_("Cannot find thread-local variables " |
1104 | "in this thread library.")); | |
9e35dae4 DJ |
1105 | break; |
1106 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
1107 | if (objfile_is_library) | |
1108 | error (_("Cannot find shared library `%s' in dynamic" | |
1109 | " linker's load module list"), objfile->name); | |
1110 | else | |
1111 | error (_("Cannot find executable file `%s' in dynamic" | |
1112 | " linker's load module list"), objfile->name); | |
1113 | break; | |
1114 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
1115 | if (objfile_is_library) | |
1116 | error (_("The inferior has not yet allocated storage for" | |
1117 | " thread-local variables in\n" | |
1118 | "the shared library `%s'\n" | |
1119 | "for %s"), | |
1120 | objfile->name, target_pid_to_str (ptid)); | |
1121 | else | |
1122 | error (_("The inferior has not yet allocated storage for" | |
1123 | " thread-local variables in\n" | |
1124 | "the executable `%s'\n" | |
1125 | "for %s"), | |
1126 | objfile->name, target_pid_to_str (ptid)); | |
1127 | break; | |
1128 | case TLS_GENERIC_ERROR: | |
1129 | if (objfile_is_library) | |
1130 | error (_("Cannot find thread-local storage for %s, " | |
1131 | "shared library %s:\n%s"), | |
1132 | target_pid_to_str (ptid), | |
1133 | objfile->name, ex.message); | |
1134 | else | |
1135 | error (_("Cannot find thread-local storage for %s, " | |
1136 | "executable file %s:\n%s"), | |
1137 | target_pid_to_str (ptid), | |
1138 | objfile->name, ex.message); | |
1139 | break; | |
1140 | default: | |
1141 | throw_exception (ex); | |
1142 | break; | |
1143 | } | |
1144 | } | |
1145 | } | |
1146 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
1147 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
1148 | else | |
1149 | error (_("Cannot find thread-local variables on this target")); | |
1150 | ||
1151 | return addr; | |
1152 | } | |
1153 | ||
c906108c SS |
1154 | #undef MIN |
1155 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
1156 | ||
1157 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
1158 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
1159 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
1160 | is responsible for freeing it. Return the number of bytes successfully | |
1161 | read. */ | |
1162 | ||
1163 | int | |
fba45db2 | 1164 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
1165 | { |
1166 | int tlen, origlen, offset, i; | |
1b0ba102 | 1167 | gdb_byte buf[4]; |
c906108c SS |
1168 | int errcode = 0; |
1169 | char *buffer; | |
1170 | int buffer_allocated; | |
1171 | char *bufptr; | |
1172 | unsigned int nbytes_read = 0; | |
1173 | ||
6217bf3e MS |
1174 | gdb_assert (string); |
1175 | ||
c906108c SS |
1176 | /* Small for testing. */ |
1177 | buffer_allocated = 4; | |
1178 | buffer = xmalloc (buffer_allocated); | |
1179 | bufptr = buffer; | |
1180 | ||
1181 | origlen = len; | |
1182 | ||
1183 | while (len > 0) | |
1184 | { | |
1185 | tlen = MIN (len, 4 - (memaddr & 3)); | |
1186 | offset = memaddr & 3; | |
1187 | ||
1b0ba102 | 1188 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
1189 | if (errcode != 0) |
1190 | { | |
1191 | /* The transfer request might have crossed the boundary to an | |
c378eb4e | 1192 | unallocated region of memory. Retry the transfer, requesting |
c906108c SS |
1193 | a single byte. */ |
1194 | tlen = 1; | |
1195 | offset = 0; | |
b8eb5af0 | 1196 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
1197 | if (errcode != 0) |
1198 | goto done; | |
1199 | } | |
1200 | ||
1201 | if (bufptr - buffer + tlen > buffer_allocated) | |
1202 | { | |
1203 | unsigned int bytes; | |
5d502164 | 1204 | |
c906108c SS |
1205 | bytes = bufptr - buffer; |
1206 | buffer_allocated *= 2; | |
1207 | buffer = xrealloc (buffer, buffer_allocated); | |
1208 | bufptr = buffer + bytes; | |
1209 | } | |
1210 | ||
1211 | for (i = 0; i < tlen; i++) | |
1212 | { | |
1213 | *bufptr++ = buf[i + offset]; | |
1214 | if (buf[i + offset] == '\000') | |
1215 | { | |
1216 | nbytes_read += i + 1; | |
1217 | goto done; | |
1218 | } | |
1219 | } | |
1220 | ||
1221 | memaddr += tlen; | |
1222 | len -= tlen; | |
1223 | nbytes_read += tlen; | |
1224 | } | |
c5aa993b | 1225 | done: |
6217bf3e | 1226 | *string = buffer; |
c906108c SS |
1227 | if (errnop != NULL) |
1228 | *errnop = errcode; | |
c906108c SS |
1229 | return nbytes_read; |
1230 | } | |
1231 | ||
07b82ea5 PA |
1232 | struct target_section_table * |
1233 | target_get_section_table (struct target_ops *target) | |
1234 | { | |
1235 | struct target_ops *t; | |
1236 | ||
1237 | if (targetdebug) | |
1238 | fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n"); | |
1239 | ||
1240 | for (t = target; t != NULL; t = t->beneath) | |
1241 | if (t->to_get_section_table != NULL) | |
1242 | return (*t->to_get_section_table) (t); | |
1243 | ||
1244 | return NULL; | |
1245 | } | |
1246 | ||
8db32d44 | 1247 | /* Find a section containing ADDR. */ |
07b82ea5 | 1248 | |
0542c86d | 1249 | struct target_section * |
8db32d44 AC |
1250 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) |
1251 | { | |
07b82ea5 | 1252 | struct target_section_table *table = target_get_section_table (target); |
0542c86d | 1253 | struct target_section *secp; |
07b82ea5 PA |
1254 | |
1255 | if (table == NULL) | |
1256 | return NULL; | |
1257 | ||
1258 | for (secp = table->sections; secp < table->sections_end; secp++) | |
8db32d44 AC |
1259 | { |
1260 | if (addr >= secp->addr && addr < secp->endaddr) | |
1261 | return secp; | |
1262 | } | |
1263 | return NULL; | |
1264 | } | |
1265 | ||
e6e4e701 PA |
1266 | /* Read memory from the live target, even if currently inspecting a |
1267 | traceframe. The return is the same as that of target_read. */ | |
1268 | ||
1269 | static LONGEST | |
1270 | target_read_live_memory (enum target_object object, | |
1271 | ULONGEST memaddr, gdb_byte *myaddr, LONGEST len) | |
1272 | { | |
1273 | int ret; | |
1274 | struct cleanup *cleanup; | |
1275 | ||
1276 | /* Switch momentarily out of tfind mode so to access live memory. | |
1277 | Note that this must not clear global state, such as the frame | |
1278 | cache, which must still remain valid for the previous traceframe. | |
1279 | We may be _building_ the frame cache at this point. */ | |
1280 | cleanup = make_cleanup_restore_traceframe_number (); | |
1281 | set_traceframe_number (-1); | |
1282 | ||
1283 | ret = target_read (current_target.beneath, object, NULL, | |
1284 | myaddr, memaddr, len); | |
1285 | ||
1286 | do_cleanups (cleanup); | |
1287 | return ret; | |
1288 | } | |
1289 | ||
1290 | /* Using the set of read-only target sections of OPS, read live | |
1291 | read-only memory. Note that the actual reads start from the | |
5657161f PA |
1292 | top-most target again. |
1293 | ||
1294 | For interface/parameters/return description see target.h, | |
1295 | to_xfer_partial. */ | |
e6e4e701 PA |
1296 | |
1297 | static LONGEST | |
1298 | memory_xfer_live_readonly_partial (struct target_ops *ops, | |
1299 | enum target_object object, | |
1300 | gdb_byte *readbuf, ULONGEST memaddr, | |
1301 | LONGEST len) | |
1302 | { | |
1303 | struct target_section *secp; | |
1304 | struct target_section_table *table; | |
1305 | ||
1306 | secp = target_section_by_addr (ops, memaddr); | |
1307 | if (secp != NULL | |
1308 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1309 | & SEC_READONLY)) | |
1310 | { | |
1311 | struct target_section *p; | |
1312 | ULONGEST memend = memaddr + len; | |
1313 | ||
1314 | table = target_get_section_table (ops); | |
1315 | ||
1316 | for (p = table->sections; p < table->sections_end; p++) | |
1317 | { | |
1318 | if (memaddr >= p->addr) | |
1319 | { | |
1320 | if (memend <= p->endaddr) | |
1321 | { | |
1322 | /* Entire transfer is within this section. */ | |
1323 | return target_read_live_memory (object, memaddr, | |
1324 | readbuf, len); | |
1325 | } | |
1326 | else if (memaddr >= p->endaddr) | |
1327 | { | |
1328 | /* This section ends before the transfer starts. */ | |
1329 | continue; | |
1330 | } | |
1331 | else | |
1332 | { | |
1333 | /* This section overlaps the transfer. Just do half. */ | |
1334 | len = p->endaddr - memaddr; | |
1335 | return target_read_live_memory (object, memaddr, | |
1336 | readbuf, len); | |
1337 | } | |
1338 | } | |
1339 | } | |
1340 | } | |
1341 | ||
1342 | return 0; | |
1343 | } | |
1344 | ||
7f79c47e DE |
1345 | /* Perform a partial memory transfer. |
1346 | For docs see target.h, to_xfer_partial. */ | |
cf7a04e8 DJ |
1347 | |
1348 | static LONGEST | |
4e5d721f DE |
1349 | memory_xfer_partial (struct target_ops *ops, enum target_object object, |
1350 | void *readbuf, const void *writebuf, ULONGEST memaddr, | |
1351 | LONGEST len) | |
0779438d | 1352 | { |
cf7a04e8 DJ |
1353 | LONGEST res; |
1354 | int reg_len; | |
1355 | struct mem_region *region; | |
4e5d721f | 1356 | struct inferior *inf; |
cf7a04e8 DJ |
1357 | |
1358 | /* Zero length requests are ok and require no work. */ | |
1359 | if (len == 0) | |
1360 | return 0; | |
1361 | ||
07b82ea5 PA |
1362 | /* For accesses to unmapped overlay sections, read directly from |
1363 | files. Must do this first, as MEMADDR may need adjustment. */ | |
1364 | if (readbuf != NULL && overlay_debugging) | |
1365 | { | |
1366 | struct obj_section *section = find_pc_overlay (memaddr); | |
5d502164 | 1367 | |
07b82ea5 PA |
1368 | if (pc_in_unmapped_range (memaddr, section)) |
1369 | { | |
1370 | struct target_section_table *table | |
1371 | = target_get_section_table (ops); | |
1372 | const char *section_name = section->the_bfd_section->name; | |
5d502164 | 1373 | |
07b82ea5 PA |
1374 | memaddr = overlay_mapped_address (memaddr, section); |
1375 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1376 | memaddr, len, | |
1377 | table->sections, | |
1378 | table->sections_end, | |
1379 | section_name); | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | /* Try the executable files, if "trust-readonly-sections" is set. */ | |
cf7a04e8 DJ |
1384 | if (readbuf != NULL && trust_readonly) |
1385 | { | |
0542c86d | 1386 | struct target_section *secp; |
07b82ea5 | 1387 | struct target_section_table *table; |
cf7a04e8 DJ |
1388 | |
1389 | secp = target_section_by_addr (ops, memaddr); | |
1390 | if (secp != NULL | |
1391 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1392 | & SEC_READONLY)) | |
07b82ea5 PA |
1393 | { |
1394 | table = target_get_section_table (ops); | |
1395 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
1396 | memaddr, len, | |
1397 | table->sections, | |
1398 | table->sections_end, | |
1399 | NULL); | |
1400 | } | |
98646950 UW |
1401 | } |
1402 | ||
e6e4e701 PA |
1403 | /* If reading unavailable memory in the context of traceframes, and |
1404 | this address falls within a read-only section, fallback to | |
1405 | reading from live memory. */ | |
1406 | if (readbuf != NULL && get_traceframe_number () != -1) | |
1407 | { | |
1408 | VEC(mem_range_s) *available; | |
1409 | ||
1410 | /* If we fail to get the set of available memory, then the | |
1411 | target does not support querying traceframe info, and so we | |
1412 | attempt reading from the traceframe anyway (assuming the | |
1413 | target implements the old QTro packet then). */ | |
1414 | if (traceframe_available_memory (&available, memaddr, len)) | |
1415 | { | |
1416 | struct cleanup *old_chain; | |
1417 | ||
1418 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available); | |
1419 | ||
1420 | if (VEC_empty (mem_range_s, available) | |
1421 | || VEC_index (mem_range_s, available, 0)->start != memaddr) | |
1422 | { | |
1423 | /* Don't read into the traceframe's available | |
1424 | memory. */ | |
1425 | if (!VEC_empty (mem_range_s, available)) | |
1426 | { | |
1427 | LONGEST oldlen = len; | |
1428 | ||
1429 | len = VEC_index (mem_range_s, available, 0)->start - memaddr; | |
1430 | gdb_assert (len <= oldlen); | |
1431 | } | |
1432 | ||
1433 | do_cleanups (old_chain); | |
1434 | ||
1435 | /* This goes through the topmost target again. */ | |
1436 | res = memory_xfer_live_readonly_partial (ops, object, | |
1437 | readbuf, memaddr, len); | |
1438 | if (res > 0) | |
1439 | return res; | |
1440 | ||
1441 | /* No use trying further, we know some memory starting | |
1442 | at MEMADDR isn't available. */ | |
1443 | return -1; | |
1444 | } | |
1445 | ||
1446 | /* Don't try to read more than how much is available, in | |
1447 | case the target implements the deprecated QTro packet to | |
1448 | cater for older GDBs (the target's knowledge of read-only | |
1449 | sections may be outdated by now). */ | |
1450 | len = VEC_index (mem_range_s, available, 0)->length; | |
1451 | ||
1452 | do_cleanups (old_chain); | |
1453 | } | |
1454 | } | |
1455 | ||
cf7a04e8 DJ |
1456 | /* Try GDB's internal data cache. */ |
1457 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1458 | /* region->hi == 0 means there's no upper bound. */ |
1459 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1460 | reg_len = len; |
1461 | else | |
1462 | reg_len = region->hi - memaddr; | |
1463 | ||
1464 | switch (region->attrib.mode) | |
1465 | { | |
1466 | case MEM_RO: | |
1467 | if (writebuf != NULL) | |
1468 | return -1; | |
1469 | break; | |
1470 | ||
1471 | case MEM_WO: | |
1472 | if (readbuf != NULL) | |
1473 | return -1; | |
1474 | break; | |
a76d924d DJ |
1475 | |
1476 | case MEM_FLASH: | |
1477 | /* We only support writing to flash during "load" for now. */ | |
1478 | if (writebuf != NULL) | |
1479 | error (_("Writing to flash memory forbidden in this context")); | |
1480 | break; | |
4b5752d0 VP |
1481 | |
1482 | case MEM_NONE: | |
1483 | return -1; | |
cf7a04e8 DJ |
1484 | } |
1485 | ||
6c95b8df PA |
1486 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1487 | inf = find_inferior_pid (ptid_get_pid (inferior_ptid)); | |
1488 | else | |
1489 | inf = NULL; | |
4e5d721f DE |
1490 | |
1491 | if (inf != NULL | |
2f4d8875 PA |
1492 | /* The dcache reads whole cache lines; that doesn't play well |
1493 | with reading from a trace buffer, because reading outside of | |
1494 | the collected memory range fails. */ | |
1495 | && get_traceframe_number () == -1 | |
4e5d721f DE |
1496 | && (region->attrib.cache |
1497 | || (stack_cache_enabled_p && object == TARGET_OBJECT_STACK_MEMORY))) | |
cf7a04e8 | 1498 | { |
cf7a04e8 | 1499 | if (readbuf != NULL) |
25f122dc | 1500 | res = dcache_xfer_memory (ops, target_dcache, memaddr, readbuf, |
cf7a04e8 DJ |
1501 | reg_len, 0); |
1502 | else | |
1503 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1504 | correctness dcache_xfer_memory should take readbuf and | |
1505 | writebuf. */ | |
25f122dc | 1506 | res = dcache_xfer_memory (ops, target_dcache, memaddr, |
cf7a04e8 DJ |
1507 | (void *) writebuf, |
1508 | reg_len, 1); | |
1509 | if (res <= 0) | |
1510 | return -1; | |
1511 | else | |
8defab1a DJ |
1512 | { |
1513 | if (readbuf && !show_memory_breakpoints) | |
1514 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1515 | return res; | |
1516 | } | |
cf7a04e8 DJ |
1517 | } |
1518 | ||
1519 | /* If none of those methods found the memory we wanted, fall back | |
1520 | to a target partial transfer. Normally a single call to | |
1521 | to_xfer_partial is enough; if it doesn't recognize an object | |
1522 | it will call the to_xfer_partial of the next target down. | |
1523 | But for memory this won't do. Memory is the only target | |
1524 | object which can be read from more than one valid target. | |
1525 | A core file, for instance, could have some of memory but | |
1526 | delegate other bits to the target below it. So, we must | |
1527 | manually try all targets. */ | |
1528 | ||
1529 | do | |
1530 | { | |
1531 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1532 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1533 | if (res > 0) |
8defab1a | 1534 | break; |
cf7a04e8 | 1535 | |
5ad3a4ca DJ |
1536 | /* We want to continue past core files to executables, but not |
1537 | past a running target's memory. */ | |
c35b1492 | 1538 | if (ops->to_has_all_memory (ops)) |
8defab1a | 1539 | break; |
5ad3a4ca | 1540 | |
cf7a04e8 DJ |
1541 | ops = ops->beneath; |
1542 | } | |
1543 | while (ops != NULL); | |
1544 | ||
e8c9e0a1 | 1545 | if (res > 0 && readbuf != NULL && !show_memory_breakpoints) |
8defab1a DJ |
1546 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); |
1547 | ||
41dcd03f DE |
1548 | /* Make sure the cache gets updated no matter what - if we are writing |
1549 | to the stack. Even if this write is not tagged as such, we still need | |
1550 | to update the cache. */ | |
1551 | ||
1552 | if (res > 0 | |
1553 | && inf != NULL | |
1554 | && writebuf != NULL | |
1555 | && !region->attrib.cache | |
1556 | && stack_cache_enabled_p | |
1557 | && object != TARGET_OBJECT_STACK_MEMORY) | |
1558 | { | |
7d4f32d3 | 1559 | dcache_update (target_dcache, memaddr, (void *) writebuf, res); |
41dcd03f DE |
1560 | } |
1561 | ||
cf7a04e8 DJ |
1562 | /* If we still haven't got anything, return the last error. We |
1563 | give up. */ | |
1564 | return res; | |
0779438d AC |
1565 | } |
1566 | ||
8defab1a DJ |
1567 | static void |
1568 | restore_show_memory_breakpoints (void *arg) | |
1569 | { | |
1570 | show_memory_breakpoints = (uintptr_t) arg; | |
1571 | } | |
1572 | ||
1573 | struct cleanup * | |
1574 | make_show_memory_breakpoints_cleanup (int show) | |
1575 | { | |
1576 | int current = show_memory_breakpoints; | |
8defab1a | 1577 | |
5d502164 | 1578 | show_memory_breakpoints = show; |
8defab1a DJ |
1579 | return make_cleanup (restore_show_memory_breakpoints, |
1580 | (void *) (uintptr_t) current); | |
1581 | } | |
1582 | ||
7f79c47e DE |
1583 | /* For docs see target.h, to_xfer_partial. */ |
1584 | ||
27394598 AC |
1585 | static LONGEST |
1586 | target_xfer_partial (struct target_ops *ops, | |
1587 | enum target_object object, const char *annex, | |
1588 | void *readbuf, const void *writebuf, | |
1589 | ULONGEST offset, LONGEST len) | |
1590 | { | |
1591 | LONGEST retval; | |
1592 | ||
1593 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 | 1594 | |
d914c394 SS |
1595 | if (writebuf && !may_write_memory) |
1596 | error (_("Writing to memory is not allowed (addr %s, len %s)"), | |
1597 | core_addr_to_string_nz (offset), plongest (len)); | |
1598 | ||
cf7a04e8 DJ |
1599 | /* If this is a memory transfer, let the memory-specific code |
1600 | have a look at it instead. Memory transfers are more | |
1601 | complicated. */ | |
4e5d721f DE |
1602 | if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY) |
1603 | retval = memory_xfer_partial (ops, object, readbuf, | |
1604 | writebuf, offset, len); | |
cf7a04e8 DJ |
1605 | else |
1606 | { | |
1607 | enum target_object raw_object = object; | |
1608 | ||
1609 | /* If this is a raw memory transfer, request the normal | |
1610 | memory object from other layers. */ | |
1611 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1612 | raw_object = TARGET_OBJECT_MEMORY; | |
1613 | ||
1614 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1615 | writebuf, offset, len); | |
1616 | } | |
1617 | ||
27394598 AC |
1618 | if (targetdebug) |
1619 | { | |
1620 | const unsigned char *myaddr = NULL; | |
1621 | ||
1622 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
1623 | "%s:target_xfer_partial " |
1624 | "(%d, %s, %s, %s, %s, %s) = %s", | |
27394598 AC |
1625 | ops->to_shortname, |
1626 | (int) object, | |
1627 | (annex ? annex : "(null)"), | |
53b71562 JB |
1628 | host_address_to_string (readbuf), |
1629 | host_address_to_string (writebuf), | |
0b1553bc UW |
1630 | core_addr_to_string_nz (offset), |
1631 | plongest (len), plongest (retval)); | |
27394598 AC |
1632 | |
1633 | if (readbuf) | |
1634 | myaddr = readbuf; | |
1635 | if (writebuf) | |
1636 | myaddr = writebuf; | |
1637 | if (retval > 0 && myaddr != NULL) | |
1638 | { | |
1639 | int i; | |
2bc416ba | 1640 | |
27394598 AC |
1641 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1642 | for (i = 0; i < retval; i++) | |
1643 | { | |
53b71562 | 1644 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1645 | { |
1646 | if (targetdebug < 2 && i > 0) | |
1647 | { | |
1648 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1649 | break; | |
1650 | } | |
1651 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1652 | } | |
2bc416ba | 1653 | |
27394598 AC |
1654 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1655 | } | |
1656 | } | |
2bc416ba | 1657 | |
27394598 AC |
1658 | fputc_unfiltered ('\n', gdb_stdlog); |
1659 | } | |
1660 | return retval; | |
1661 | } | |
1662 | ||
c906108c SS |
1663 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1664 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1665 | if any error occurs. | |
1666 | ||
1667 | If an error occurs, no guarantee is made about the contents of the data at | |
1668 | MYADDR. In particular, the caller should not depend upon partial reads | |
1669 | filling the buffer with good data. There is no way for the caller to know | |
1670 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 | 1671 | deal with partial reads should call target_read (which will retry until |
c378eb4e | 1672 | it makes no progress, and then return how much was transferred). */ |
c906108c SS |
1673 | |
1674 | int | |
fc1a4b47 | 1675 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 1676 | { |
c35b1492 PA |
1677 | /* Dispatch to the topmost target, not the flattened current_target. |
1678 | Memory accesses check target->to_has_(all_)memory, and the | |
1679 | flattened target doesn't inherit those. */ | |
1680 | if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1681 | myaddr, memaddr, len) == len) |
1682 | return 0; | |
0779438d | 1683 | else |
cf7a04e8 | 1684 | return EIO; |
c906108c SS |
1685 | } |
1686 | ||
4e5d721f DE |
1687 | /* Like target_read_memory, but specify explicitly that this is a read from |
1688 | the target's stack. This may trigger different cache behavior. */ | |
1689 | ||
1690 | int | |
1691 | target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, int len) | |
1692 | { | |
1693 | /* Dispatch to the topmost target, not the flattened current_target. | |
1694 | Memory accesses check target->to_has_(all_)memory, and the | |
1695 | flattened target doesn't inherit those. */ | |
1696 | ||
1697 | if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL, | |
1698 | myaddr, memaddr, len) == len) | |
1699 | return 0; | |
1700 | else | |
1701 | return EIO; | |
1702 | } | |
1703 | ||
7f79c47e DE |
1704 | /* Write LEN bytes from MYADDR to target memory at address MEMADDR. |
1705 | Returns either 0 for success or an errno value if any error occurs. | |
1706 | If an error occurs, no guarantee is made about how much data got written. | |
1707 | Callers that can deal with partial writes should call target_write. */ | |
1708 | ||
c906108c | 1709 | int |
fc1a4b47 | 1710 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1711 | { |
c35b1492 PA |
1712 | /* Dispatch to the topmost target, not the flattened current_target. |
1713 | Memory accesses check target->to_has_(all_)memory, and the | |
1714 | flattened target doesn't inherit those. */ | |
1715 | if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL, | |
cf7a04e8 DJ |
1716 | myaddr, memaddr, len) == len) |
1717 | return 0; | |
0779438d | 1718 | else |
cf7a04e8 | 1719 | return EIO; |
c906108c | 1720 | } |
c5aa993b | 1721 | |
fd79ecee DJ |
1722 | /* Fetch the target's memory map. */ |
1723 | ||
1724 | VEC(mem_region_s) * | |
1725 | target_memory_map (void) | |
1726 | { | |
1727 | VEC(mem_region_s) *result; | |
1728 | struct mem_region *last_one, *this_one; | |
1729 | int ix; | |
1730 | struct target_ops *t; | |
1731 | ||
1732 | if (targetdebug) | |
1733 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1734 | ||
1735 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1736 | if (t->to_memory_map != NULL) | |
1737 | break; | |
1738 | ||
1739 | if (t == NULL) | |
1740 | return NULL; | |
1741 | ||
1742 | result = t->to_memory_map (t); | |
1743 | if (result == NULL) | |
1744 | return NULL; | |
1745 | ||
1746 | qsort (VEC_address (mem_region_s, result), | |
1747 | VEC_length (mem_region_s, result), | |
1748 | sizeof (struct mem_region), mem_region_cmp); | |
1749 | ||
1750 | /* Check that regions do not overlap. Simultaneously assign | |
1751 | a numbering for the "mem" commands to use to refer to | |
1752 | each region. */ | |
1753 | last_one = NULL; | |
1754 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1755 | { | |
1756 | this_one->number = ix; | |
1757 | ||
1758 | if (last_one && last_one->hi > this_one->lo) | |
1759 | { | |
1760 | warning (_("Overlapping regions in memory map: ignoring")); | |
1761 | VEC_free (mem_region_s, result); | |
1762 | return NULL; | |
1763 | } | |
1764 | last_one = this_one; | |
1765 | } | |
1766 | ||
1767 | return result; | |
1768 | } | |
1769 | ||
a76d924d DJ |
1770 | void |
1771 | target_flash_erase (ULONGEST address, LONGEST length) | |
1772 | { | |
1773 | struct target_ops *t; | |
1774 | ||
1775 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1776 | if (t->to_flash_erase != NULL) | |
5d502164 MS |
1777 | { |
1778 | if (targetdebug) | |
1779 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1780 | hex_string (address), phex (length, 0)); | |
1781 | t->to_flash_erase (t, address, length); | |
1782 | return; | |
1783 | } | |
a76d924d DJ |
1784 | |
1785 | tcomplain (); | |
1786 | } | |
1787 | ||
1788 | void | |
1789 | target_flash_done (void) | |
1790 | { | |
1791 | struct target_ops *t; | |
1792 | ||
1793 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1794 | if (t->to_flash_done != NULL) | |
5d502164 MS |
1795 | { |
1796 | if (targetdebug) | |
1797 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
1798 | t->to_flash_done (t); | |
1799 | return; | |
1800 | } | |
a76d924d DJ |
1801 | |
1802 | tcomplain (); | |
1803 | } | |
1804 | ||
920d2a44 AC |
1805 | static void |
1806 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1807 | struct cmd_list_element *c, const char *value) | |
1808 | { | |
3e43a32a MS |
1809 | fprintf_filtered (file, |
1810 | _("Mode for reading from readonly sections is %s.\n"), | |
920d2a44 AC |
1811 | value); |
1812 | } | |
3a11626d | 1813 | |
1e3ff5ad AC |
1814 | /* More generic transfers. */ |
1815 | ||
0088c768 | 1816 | static LONGEST |
8aa91c1e | 1817 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1818 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1819 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1820 | { |
1821 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1822 | && ops->deprecated_xfer_memory != NULL) |
1823 | /* If available, fall back to the target's | |
1824 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1825 | { |
4b8a223f | 1826 | int xfered = -1; |
5d502164 | 1827 | |
0088c768 | 1828 | errno = 0; |
4b8a223f AC |
1829 | if (writebuf != NULL) |
1830 | { | |
1831 | void *buffer = xmalloc (len); | |
1832 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
5d502164 | 1833 | |
4b8a223f | 1834 | memcpy (buffer, writebuf, len); |
c8e73a31 AC |
1835 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1836 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1837 | do_cleanups (cleanup); |
1838 | } | |
1839 | if (readbuf != NULL) | |
244e85c8 MS |
1840 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1841 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1842 | if (xfered > 0) |
1843 | return xfered; | |
1844 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1845 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1846 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1847 | return 0; |
1848 | else | |
1849 | return -1; | |
1850 | } | |
1851 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1852 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1853 | readbuf, writebuf, offset, len); | |
1854 | else | |
1855 | return -1; | |
1856 | } | |
1857 | ||
1858 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1859 | it does not need to handle memory specially; it just passes all | |
1860 | requests down the stack. */ | |
1861 | ||
1862 | static LONGEST | |
1863 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
1864 | const char *annex, gdb_byte *readbuf, | |
1865 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1866 | { | |
1867 | if (ops->beneath != NULL) | |
1868 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1869 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1870 | else |
1871 | return -1; | |
1872 | } | |
1873 | ||
7f79c47e | 1874 | /* Target vector read/write partial wrapper functions. */ |
0088c768 | 1875 | |
13547ab6 | 1876 | static LONGEST |
1e3ff5ad AC |
1877 | target_read_partial (struct target_ops *ops, |
1878 | enum target_object object, | |
1b0ba102 | 1879 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1880 | ULONGEST offset, LONGEST len) |
1881 | { | |
27394598 | 1882 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1883 | } |
1884 | ||
13547ab6 | 1885 | static LONGEST |
1e3ff5ad AC |
1886 | target_write_partial (struct target_ops *ops, |
1887 | enum target_object object, | |
1b0ba102 | 1888 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1889 | ULONGEST offset, LONGEST len) |
1890 | { | |
27394598 | 1891 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1892 | } |
1893 | ||
1894 | /* Wrappers to perform the full transfer. */ | |
7f79c47e DE |
1895 | |
1896 | /* For docs on target_read see target.h. */ | |
1897 | ||
1e3ff5ad AC |
1898 | LONGEST |
1899 | target_read (struct target_ops *ops, | |
1900 | enum target_object object, | |
1b0ba102 | 1901 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1902 | ULONGEST offset, LONGEST len) |
1903 | { | |
1904 | LONGEST xfered = 0; | |
5d502164 | 1905 | |
1e3ff5ad AC |
1906 | while (xfered < len) |
1907 | { | |
0088c768 | 1908 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 1909 | (gdb_byte *) buf + xfered, |
0088c768 | 1910 | offset + xfered, len - xfered); |
5d502164 | 1911 | |
1e3ff5ad | 1912 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
1913 | if (xfer == 0) |
1914 | return xfered; | |
1915 | if (xfer < 0) | |
0088c768 | 1916 | return -1; |
1e3ff5ad AC |
1917 | xfered += xfer; |
1918 | QUIT; | |
1919 | } | |
1920 | return len; | |
1921 | } | |
1922 | ||
f1a507a1 JB |
1923 | /* Assuming that the entire [begin, end) range of memory cannot be |
1924 | read, try to read whatever subrange is possible to read. | |
1925 | ||
1926 | The function returns, in RESULT, either zero or one memory block. | |
1927 | If there's a readable subrange at the beginning, it is completely | |
1928 | read and returned. Any further readable subrange will not be read. | |
1929 | Otherwise, if there's a readable subrange at the end, it will be | |
1930 | completely read and returned. Any readable subranges before it | |
1931 | (obviously, not starting at the beginning), will be ignored. In | |
1932 | other cases -- either no readable subrange, or readable subrange(s) | |
1933 | that is neither at the beginning, or end, nothing is returned. | |
1934 | ||
1935 | The purpose of this function is to handle a read across a boundary | |
1936 | of accessible memory in a case when memory map is not available. | |
1937 | The above restrictions are fine for this case, but will give | |
1938 | incorrect results if the memory is 'patchy'. However, supporting | |
1939 | 'patchy' memory would require trying to read every single byte, | |
1940 | and it seems unacceptable solution. Explicit memory map is | |
1941 | recommended for this case -- and target_read_memory_robust will | |
1942 | take care of reading multiple ranges then. */ | |
8dedea02 VP |
1943 | |
1944 | static void | |
3e43a32a MS |
1945 | read_whatever_is_readable (struct target_ops *ops, |
1946 | ULONGEST begin, ULONGEST end, | |
8dedea02 | 1947 | VEC(memory_read_result_s) **result) |
d5086790 | 1948 | { |
f1a507a1 | 1949 | gdb_byte *buf = xmalloc (end - begin); |
8dedea02 VP |
1950 | ULONGEST current_begin = begin; |
1951 | ULONGEST current_end = end; | |
1952 | int forward; | |
1953 | memory_read_result_s r; | |
1954 | ||
1955 | /* If we previously failed to read 1 byte, nothing can be done here. */ | |
1956 | if (end - begin <= 1) | |
13b3fd9b MS |
1957 | { |
1958 | xfree (buf); | |
1959 | return; | |
1960 | } | |
8dedea02 VP |
1961 | |
1962 | /* Check that either first or the last byte is readable, and give up | |
c378eb4e | 1963 | if not. This heuristic is meant to permit reading accessible memory |
8dedea02 VP |
1964 | at the boundary of accessible region. */ |
1965 | if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
1966 | buf, begin, 1) == 1) | |
1967 | { | |
1968 | forward = 1; | |
1969 | ++current_begin; | |
1970 | } | |
1971 | else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
1972 | buf + (end-begin) - 1, end - 1, 1) == 1) | |
1973 | { | |
1974 | forward = 0; | |
1975 | --current_end; | |
1976 | } | |
1977 | else | |
1978 | { | |
13b3fd9b | 1979 | xfree (buf); |
8dedea02 VP |
1980 | return; |
1981 | } | |
1982 | ||
1983 | /* Loop invariant is that the [current_begin, current_end) was previously | |
1984 | found to be not readable as a whole. | |
1985 | ||
1986 | Note loop condition -- if the range has 1 byte, we can't divide the range | |
1987 | so there's no point trying further. */ | |
1988 | while (current_end - current_begin > 1) | |
1989 | { | |
1990 | ULONGEST first_half_begin, first_half_end; | |
1991 | ULONGEST second_half_begin, second_half_end; | |
1992 | LONGEST xfer; | |
8dedea02 | 1993 | ULONGEST middle = current_begin + (current_end - current_begin)/2; |
f1a507a1 | 1994 | |
8dedea02 VP |
1995 | if (forward) |
1996 | { | |
1997 | first_half_begin = current_begin; | |
1998 | first_half_end = middle; | |
1999 | second_half_begin = middle; | |
2000 | second_half_end = current_end; | |
2001 | } | |
2002 | else | |
2003 | { | |
2004 | first_half_begin = middle; | |
2005 | first_half_end = current_end; | |
2006 | second_half_begin = current_begin; | |
2007 | second_half_end = middle; | |
2008 | } | |
2009 | ||
2010 | xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2011 | buf + (first_half_begin - begin), | |
2012 | first_half_begin, | |
2013 | first_half_end - first_half_begin); | |
2014 | ||
2015 | if (xfer == first_half_end - first_half_begin) | |
2016 | { | |
c378eb4e | 2017 | /* This half reads up fine. So, the error must be in the |
3e43a32a | 2018 | other half. */ |
8dedea02 VP |
2019 | current_begin = second_half_begin; |
2020 | current_end = second_half_end; | |
2021 | } | |
2022 | else | |
2023 | { | |
c378eb4e MS |
2024 | /* This half is not readable. Because we've tried one byte, we |
2025 | know some part of this half if actually redable. Go to the next | |
8dedea02 VP |
2026 | iteration to divide again and try to read. |
2027 | ||
2028 | We don't handle the other half, because this function only tries | |
2029 | to read a single readable subrange. */ | |
2030 | current_begin = first_half_begin; | |
2031 | current_end = first_half_end; | |
2032 | } | |
2033 | } | |
2034 | ||
2035 | if (forward) | |
2036 | { | |
2037 | /* The [begin, current_begin) range has been read. */ | |
2038 | r.begin = begin; | |
2039 | r.end = current_begin; | |
2040 | r.data = buf; | |
2041 | } | |
2042 | else | |
2043 | { | |
2044 | /* The [current_end, end) range has been read. */ | |
2045 | LONGEST rlen = end - current_end; | |
f1a507a1 | 2046 | |
8dedea02 VP |
2047 | r.data = xmalloc (rlen); |
2048 | memcpy (r.data, buf + current_end - begin, rlen); | |
2049 | r.begin = current_end; | |
2050 | r.end = end; | |
2051 | xfree (buf); | |
2052 | } | |
2053 | VEC_safe_push(memory_read_result_s, (*result), &r); | |
2054 | } | |
2055 | ||
2056 | void | |
2057 | free_memory_read_result_vector (void *x) | |
2058 | { | |
2059 | VEC(memory_read_result_s) *v = x; | |
2060 | memory_read_result_s *current; | |
2061 | int ix; | |
2062 | ||
2063 | for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix) | |
2064 | { | |
2065 | xfree (current->data); | |
2066 | } | |
2067 | VEC_free (memory_read_result_s, v); | |
2068 | } | |
2069 | ||
2070 | VEC(memory_read_result_s) * | |
2071 | read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len) | |
2072 | { | |
2073 | VEC(memory_read_result_s) *result = 0; | |
2074 | ||
2075 | LONGEST xfered = 0; | |
d5086790 VP |
2076 | while (xfered < len) |
2077 | { | |
8dedea02 VP |
2078 | struct mem_region *region = lookup_mem_region (offset + xfered); |
2079 | LONGEST rlen; | |
5d502164 | 2080 | |
8dedea02 VP |
2081 | /* If there is no explicit region, a fake one should be created. */ |
2082 | gdb_assert (region); | |
2083 | ||
2084 | if (region->hi == 0) | |
2085 | rlen = len - xfered; | |
2086 | else | |
2087 | rlen = region->hi - offset; | |
2088 | ||
2089 | if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO) | |
d5086790 | 2090 | { |
c378eb4e | 2091 | /* Cannot read this region. Note that we can end up here only |
8dedea02 VP |
2092 | if the region is explicitly marked inaccessible, or |
2093 | 'inaccessible-by-default' is in effect. */ | |
2094 | xfered += rlen; | |
2095 | } | |
2096 | else | |
2097 | { | |
2098 | LONGEST to_read = min (len - xfered, rlen); | |
2099 | gdb_byte *buffer = (gdb_byte *)xmalloc (to_read); | |
2100 | ||
2101 | LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2102 | (gdb_byte *) buffer, | |
2103 | offset + xfered, to_read); | |
2104 | /* Call an observer, notifying them of the xfer progress? */ | |
d5086790 | 2105 | if (xfer <= 0) |
d5086790 | 2106 | { |
c378eb4e | 2107 | /* Got an error reading full chunk. See if maybe we can read |
8dedea02 VP |
2108 | some subrange. */ |
2109 | xfree (buffer); | |
3e43a32a MS |
2110 | read_whatever_is_readable (ops, offset + xfered, |
2111 | offset + xfered + to_read, &result); | |
8dedea02 | 2112 | xfered += to_read; |
d5086790 | 2113 | } |
8dedea02 VP |
2114 | else |
2115 | { | |
2116 | struct memory_read_result r; | |
2117 | r.data = buffer; | |
2118 | r.begin = offset + xfered; | |
2119 | r.end = r.begin + xfer; | |
2120 | VEC_safe_push (memory_read_result_s, result, &r); | |
2121 | xfered += xfer; | |
2122 | } | |
2123 | QUIT; | |
d5086790 | 2124 | } |
d5086790 | 2125 | } |
8dedea02 | 2126 | return result; |
d5086790 VP |
2127 | } |
2128 | ||
8dedea02 | 2129 | |
cf7a04e8 DJ |
2130 | /* An alternative to target_write with progress callbacks. */ |
2131 | ||
1e3ff5ad | 2132 | LONGEST |
cf7a04e8 DJ |
2133 | target_write_with_progress (struct target_ops *ops, |
2134 | enum target_object object, | |
2135 | const char *annex, const gdb_byte *buf, | |
2136 | ULONGEST offset, LONGEST len, | |
2137 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
2138 | { |
2139 | LONGEST xfered = 0; | |
a76d924d DJ |
2140 | |
2141 | /* Give the progress callback a chance to set up. */ | |
2142 | if (progress) | |
2143 | (*progress) (0, baton); | |
2144 | ||
1e3ff5ad AC |
2145 | while (xfered < len) |
2146 | { | |
2147 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 2148 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 2149 | offset + xfered, len - xfered); |
cf7a04e8 | 2150 | |
13547ab6 DJ |
2151 | if (xfer == 0) |
2152 | return xfered; | |
2153 | if (xfer < 0) | |
0088c768 | 2154 | return -1; |
cf7a04e8 DJ |
2155 | |
2156 | if (progress) | |
2157 | (*progress) (xfer, baton); | |
2158 | ||
1e3ff5ad AC |
2159 | xfered += xfer; |
2160 | QUIT; | |
2161 | } | |
2162 | return len; | |
2163 | } | |
2164 | ||
7f79c47e DE |
2165 | /* For docs on target_write see target.h. */ |
2166 | ||
cf7a04e8 DJ |
2167 | LONGEST |
2168 | target_write (struct target_ops *ops, | |
2169 | enum target_object object, | |
2170 | const char *annex, const gdb_byte *buf, | |
2171 | ULONGEST offset, LONGEST len) | |
2172 | { | |
2173 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
2174 | NULL, NULL); | |
2175 | } | |
2176 | ||
159f81f3 DJ |
2177 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2178 | the size of the transferred data. PADDING additional bytes are | |
2179 | available in *BUF_P. This is a helper function for | |
2180 | target_read_alloc; see the declaration of that function for more | |
2181 | information. */ | |
13547ab6 | 2182 | |
159f81f3 DJ |
2183 | static LONGEST |
2184 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
2185 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
2186 | { |
2187 | size_t buf_alloc, buf_pos; | |
2188 | gdb_byte *buf; | |
2189 | LONGEST n; | |
2190 | ||
2191 | /* This function does not have a length parameter; it reads the | |
2192 | entire OBJECT). Also, it doesn't support objects fetched partly | |
2193 | from one target and partly from another (in a different stratum, | |
2194 | e.g. a core file and an executable). Both reasons make it | |
2195 | unsuitable for reading memory. */ | |
2196 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
2197 | ||
2198 | /* Start by reading up to 4K at a time. The target will throttle | |
2199 | this number down if necessary. */ | |
2200 | buf_alloc = 4096; | |
2201 | buf = xmalloc (buf_alloc); | |
2202 | buf_pos = 0; | |
2203 | while (1) | |
2204 | { | |
2205 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 2206 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
2207 | if (n < 0) |
2208 | { | |
2209 | /* An error occurred. */ | |
2210 | xfree (buf); | |
2211 | return -1; | |
2212 | } | |
2213 | else if (n == 0) | |
2214 | { | |
2215 | /* Read all there was. */ | |
2216 | if (buf_pos == 0) | |
2217 | xfree (buf); | |
2218 | else | |
2219 | *buf_p = buf; | |
2220 | return buf_pos; | |
2221 | } | |
2222 | ||
2223 | buf_pos += n; | |
2224 | ||
2225 | /* If the buffer is filling up, expand it. */ | |
2226 | if (buf_alloc < buf_pos * 2) | |
2227 | { | |
2228 | buf_alloc *= 2; | |
2229 | buf = xrealloc (buf, buf_alloc); | |
2230 | } | |
2231 | ||
2232 | QUIT; | |
2233 | } | |
2234 | } | |
2235 | ||
159f81f3 DJ |
2236 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
2237 | the size of the transferred data. See the declaration in "target.h" | |
2238 | function for more information about the return value. */ | |
2239 | ||
2240 | LONGEST | |
2241 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
2242 | const char *annex, gdb_byte **buf_p) | |
2243 | { | |
2244 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
2245 | } | |
2246 | ||
2247 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
2248 | returned as a string, allocated using xmalloc. If an error occurs | |
2249 | or the transfer is unsupported, NULL is returned. Empty objects | |
2250 | are returned as allocated but empty strings. A warning is issued | |
2251 | if the result contains any embedded NUL bytes. */ | |
2252 | ||
2253 | char * | |
2254 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
2255 | const char *annex) | |
2256 | { | |
2257 | gdb_byte *buffer; | |
2258 | LONGEST transferred; | |
2259 | ||
2260 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); | |
2261 | ||
2262 | if (transferred < 0) | |
2263 | return NULL; | |
2264 | ||
2265 | if (transferred == 0) | |
2266 | return xstrdup (""); | |
2267 | ||
2268 | buffer[transferred] = 0; | |
2269 | if (strlen (buffer) < transferred) | |
2270 | warning (_("target object %d, annex %s, " | |
2271 | "contained unexpected null characters"), | |
2272 | (int) object, annex ? annex : "(none)"); | |
2273 | ||
2274 | return (char *) buffer; | |
2275 | } | |
2276 | ||
b6591e8b AC |
2277 | /* Memory transfer methods. */ |
2278 | ||
2279 | void | |
1b0ba102 | 2280 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
2281 | LONGEST len) |
2282 | { | |
07b82ea5 PA |
2283 | /* This method is used to read from an alternate, non-current |
2284 | target. This read must bypass the overlay support (as symbols | |
2285 | don't match this target), and GDB's internal cache (wrong cache | |
2286 | for this target). */ | |
2287 | if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len) | |
b6591e8b AC |
2288 | != len) |
2289 | memory_error (EIO, addr); | |
2290 | } | |
2291 | ||
2292 | ULONGEST | |
5d502164 MS |
2293 | get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr, |
2294 | int len, enum bfd_endian byte_order) | |
b6591e8b | 2295 | { |
f6519ebc | 2296 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
2297 | |
2298 | gdb_assert (len <= sizeof (buf)); | |
2299 | get_target_memory (ops, addr, buf, len); | |
e17a4113 | 2300 | return extract_unsigned_integer (buf, len, byte_order); |
b6591e8b AC |
2301 | } |
2302 | ||
d914c394 SS |
2303 | int |
2304 | target_insert_breakpoint (struct gdbarch *gdbarch, | |
2305 | struct bp_target_info *bp_tgt) | |
2306 | { | |
2307 | if (!may_insert_breakpoints) | |
2308 | { | |
2309 | warning (_("May not insert breakpoints")); | |
2310 | return 1; | |
2311 | } | |
2312 | ||
2313 | return (*current_target.to_insert_breakpoint) (gdbarch, bp_tgt); | |
2314 | } | |
2315 | ||
2316 | int | |
2317 | target_remove_breakpoint (struct gdbarch *gdbarch, | |
2318 | struct bp_target_info *bp_tgt) | |
2319 | { | |
2320 | /* This is kind of a weird case to handle, but the permission might | |
2321 | have been changed after breakpoints were inserted - in which case | |
2322 | we should just take the user literally and assume that any | |
2323 | breakpoints should be left in place. */ | |
2324 | if (!may_insert_breakpoints) | |
2325 | { | |
2326 | warning (_("May not remove breakpoints")); | |
2327 | return 1; | |
2328 | } | |
2329 | ||
2330 | return (*current_target.to_remove_breakpoint) (gdbarch, bp_tgt); | |
2331 | } | |
2332 | ||
c906108c | 2333 | static void |
fba45db2 | 2334 | target_info (char *args, int from_tty) |
c906108c SS |
2335 | { |
2336 | struct target_ops *t; | |
c906108c | 2337 | int has_all_mem = 0; |
c5aa993b | 2338 | |
c906108c | 2339 | if (symfile_objfile != NULL) |
a3f17187 | 2340 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 2341 | |
258b763a | 2342 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 2343 | { |
c35b1492 | 2344 | if (!(*t->to_has_memory) (t)) |
c906108c SS |
2345 | continue; |
2346 | ||
c5aa993b | 2347 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
2348 | continue; |
2349 | if (has_all_mem) | |
3e43a32a MS |
2350 | printf_unfiltered (_("\tWhile running this, " |
2351 | "GDB does not access memory from...\n")); | |
c5aa993b JM |
2352 | printf_unfiltered ("%s:\n", t->to_longname); |
2353 | (t->to_files_info) (t); | |
c35b1492 | 2354 | has_all_mem = (*t->to_has_all_memory) (t); |
c906108c SS |
2355 | } |
2356 | } | |
2357 | ||
fd79ecee DJ |
2358 | /* This function is called before any new inferior is created, e.g. |
2359 | by running a program, attaching, or connecting to a target. | |
2360 | It cleans up any state from previous invocations which might | |
2361 | change between runs. This is a subset of what target_preopen | |
2362 | resets (things which might change between targets). */ | |
2363 | ||
2364 | void | |
2365 | target_pre_inferior (int from_tty) | |
2366 | { | |
c378eb4e | 2367 | /* Clear out solib state. Otherwise the solib state of the previous |
b9db4ced | 2368 | inferior might have survived and is entirely wrong for the new |
c378eb4e | 2369 | target. This has been observed on GNU/Linux using glibc 2.3. How |
b9db4ced UW |
2370 | to reproduce: |
2371 | ||
2372 | bash$ ./foo& | |
2373 | [1] 4711 | |
2374 | bash$ ./foo& | |
2375 | [1] 4712 | |
2376 | bash$ gdb ./foo | |
2377 | [...] | |
2378 | (gdb) attach 4711 | |
2379 | (gdb) detach | |
2380 | (gdb) attach 4712 | |
2381 | Cannot access memory at address 0xdeadbeef | |
2382 | */ | |
b9db4ced | 2383 | |
50c71eaf PA |
2384 | /* In some OSs, the shared library list is the same/global/shared |
2385 | across inferiors. If code is shared between processes, so are | |
2386 | memory regions and features. */ | |
2387 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2388 | { | |
2389 | no_shared_libraries (NULL, from_tty); | |
2390 | ||
2391 | invalidate_target_mem_regions (); | |
424163ea | 2392 | |
50c71eaf PA |
2393 | target_clear_description (); |
2394 | } | |
fd79ecee DJ |
2395 | } |
2396 | ||
b8fa0bfa PA |
2397 | /* Callback for iterate_over_inferiors. Gets rid of the given |
2398 | inferior. */ | |
2399 | ||
2400 | static int | |
2401 | dispose_inferior (struct inferior *inf, void *args) | |
2402 | { | |
2403 | struct thread_info *thread; | |
2404 | ||
2405 | thread = any_thread_of_process (inf->pid); | |
2406 | if (thread) | |
2407 | { | |
2408 | switch_to_thread (thread->ptid); | |
2409 | ||
2410 | /* Core inferiors actually should be detached, not killed. */ | |
2411 | if (target_has_execution) | |
2412 | target_kill (); | |
2413 | else | |
2414 | target_detach (NULL, 0); | |
2415 | } | |
2416 | ||
2417 | return 0; | |
2418 | } | |
2419 | ||
c906108c SS |
2420 | /* This is to be called by the open routine before it does |
2421 | anything. */ | |
2422 | ||
2423 | void | |
fba45db2 | 2424 | target_preopen (int from_tty) |
c906108c | 2425 | { |
c5aa993b | 2426 | dont_repeat (); |
c906108c | 2427 | |
b8fa0bfa | 2428 | if (have_inferiors ()) |
c5aa993b | 2429 | { |
adf40b2e | 2430 | if (!from_tty |
b8fa0bfa PA |
2431 | || !have_live_inferiors () |
2432 | || query (_("A program is being debugged already. Kill it? "))) | |
2433 | iterate_over_inferiors (dispose_inferior, NULL); | |
c906108c | 2434 | else |
8a3fe4f8 | 2435 | error (_("Program not killed.")); |
c906108c SS |
2436 | } |
2437 | ||
2438 | /* Calling target_kill may remove the target from the stack. But if | |
2439 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
2440 | /* Leave the exec target, though. The user may be switching from a |
2441 | live process to a core of the same program. */ | |
2442 | pop_all_targets_above (file_stratum, 0); | |
fd79ecee DJ |
2443 | |
2444 | target_pre_inferior (from_tty); | |
c906108c SS |
2445 | } |
2446 | ||
2447 | /* Detach a target after doing deferred register stores. */ | |
2448 | ||
2449 | void | |
fba45db2 | 2450 | target_detach (char *args, int from_tty) |
c906108c | 2451 | { |
136d6dae VP |
2452 | struct target_ops* t; |
2453 | ||
2567c7d9 | 2454 | if (gdbarch_has_global_breakpoints (target_gdbarch)) |
50c71eaf PA |
2455 | /* Don't remove global breakpoints here. They're removed on |
2456 | disconnection from the target. */ | |
2457 | ; | |
2458 | else | |
2459 | /* If we're in breakpoints-always-inserted mode, have to remove | |
2460 | them before detaching. */ | |
6c95b8df | 2461 | remove_breakpoints_pid (PIDGET (inferior_ptid)); |
74960c60 | 2462 | |
24291992 PA |
2463 | prepare_for_detach (); |
2464 | ||
136d6dae VP |
2465 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2466 | { | |
2467 | if (t->to_detach != NULL) | |
2468 | { | |
2469 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
2470 | if (targetdebug) |
2471 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
2472 | args, from_tty); | |
136d6dae VP |
2473 | return; |
2474 | } | |
2475 | } | |
2476 | ||
9b20d036 | 2477 | internal_error (__FILE__, __LINE__, _("could not find a target to detach")); |
c906108c SS |
2478 | } |
2479 | ||
6ad8ae5c DJ |
2480 | void |
2481 | target_disconnect (char *args, int from_tty) | |
2482 | { | |
597320e7 DJ |
2483 | struct target_ops *t; |
2484 | ||
50c71eaf PA |
2485 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
2486 | are global across processes, we have to remove them before | |
2487 | disconnecting. */ | |
74960c60 VP |
2488 | remove_breakpoints (); |
2489 | ||
597320e7 DJ |
2490 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2491 | if (t->to_disconnect != NULL) | |
2492 | { | |
2493 | if (targetdebug) | |
2494 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
2495 | args, from_tty); | |
2496 | t->to_disconnect (t, args, from_tty); | |
2497 | return; | |
2498 | } | |
2499 | ||
2500 | tcomplain (); | |
6ad8ae5c DJ |
2501 | } |
2502 | ||
117de6a9 | 2503 | ptid_t |
47608cb1 | 2504 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
2505 | { |
2506 | struct target_ops *t; | |
2507 | ||
2508 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2509 | { | |
2510 | if (t->to_wait != NULL) | |
2511 | { | |
47608cb1 | 2512 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
2513 | |
2514 | if (targetdebug) | |
2515 | { | |
2516 | char *status_string; | |
2517 | ||
2518 | status_string = target_waitstatus_to_string (status); | |
2519 | fprintf_unfiltered (gdb_stdlog, | |
2520 | "target_wait (%d, status) = %d, %s\n", | |
2521 | PIDGET (ptid), PIDGET (retval), | |
2522 | status_string); | |
2523 | xfree (status_string); | |
2524 | } | |
2525 | ||
2526 | return retval; | |
2527 | } | |
2528 | } | |
2529 | ||
2530 | noprocess (); | |
2531 | } | |
2532 | ||
2533 | char * | |
2534 | target_pid_to_str (ptid_t ptid) | |
2535 | { | |
2536 | struct target_ops *t; | |
2537 | ||
2538 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2539 | { | |
2540 | if (t->to_pid_to_str != NULL) | |
2541 | return (*t->to_pid_to_str) (t, ptid); | |
2542 | } | |
2543 | ||
2544 | return normal_pid_to_str (ptid); | |
2545 | } | |
2546 | ||
4694da01 TT |
2547 | char * |
2548 | target_thread_name (struct thread_info *info) | |
2549 | { | |
2550 | struct target_ops *t; | |
2551 | ||
2552 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2553 | { | |
2554 | if (t->to_thread_name != NULL) | |
2555 | return (*t->to_thread_name) (info); | |
2556 | } | |
2557 | ||
2558 | return NULL; | |
2559 | } | |
2560 | ||
e1ac3328 VP |
2561 | void |
2562 | target_resume (ptid_t ptid, int step, enum target_signal signal) | |
2563 | { | |
28439f5e PA |
2564 | struct target_ops *t; |
2565 | ||
4e5d721f | 2566 | target_dcache_invalidate (); |
28439f5e PA |
2567 | |
2568 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2569 | { | |
2570 | if (t->to_resume != NULL) | |
2571 | { | |
2572 | t->to_resume (t, ptid, step, signal); | |
2573 | if (targetdebug) | |
2574 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
2575 | PIDGET (ptid), | |
2576 | step ? "step" : "continue", | |
2577 | target_signal_to_name (signal)); | |
2578 | ||
e66408ed | 2579 | registers_changed_ptid (ptid); |
28439f5e PA |
2580 | set_executing (ptid, 1); |
2581 | set_running (ptid, 1); | |
edb3359d | 2582 | clear_inline_frame_state (ptid); |
28439f5e PA |
2583 | return; |
2584 | } | |
2585 | } | |
2586 | ||
2587 | noprocess (); | |
e1ac3328 | 2588 | } |
ee057212 DJ |
2589 | /* Look through the list of possible targets for a target that can |
2590 | follow forks. */ | |
2591 | ||
2592 | int | |
2593 | target_follow_fork (int follow_child) | |
2594 | { | |
2595 | struct target_ops *t; | |
2596 | ||
2597 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2598 | { | |
2599 | if (t->to_follow_fork != NULL) | |
2600 | { | |
2601 | int retval = t->to_follow_fork (t, follow_child); | |
5d502164 | 2602 | |
ee057212 DJ |
2603 | if (targetdebug) |
2604 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
2605 | follow_child, retval); | |
2606 | return retval; | |
2607 | } | |
2608 | } | |
2609 | ||
2610 | /* Some target returned a fork event, but did not know how to follow it. */ | |
2611 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2612 | _("could not find a target to follow fork")); |
ee057212 DJ |
2613 | } |
2614 | ||
136d6dae VP |
2615 | void |
2616 | target_mourn_inferior (void) | |
2617 | { | |
2618 | struct target_ops *t; | |
5d502164 | 2619 | |
136d6dae VP |
2620 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
2621 | { | |
2622 | if (t->to_mourn_inferior != NULL) | |
2623 | { | |
2624 | t->to_mourn_inferior (t); | |
947b8855 PA |
2625 | if (targetdebug) |
2626 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
2627 | |
2628 | /* We no longer need to keep handles on any of the object files. | |
2629 | Make sure to release them to avoid unnecessarily locking any | |
2630 | of them while we're not actually debugging. */ | |
2631 | bfd_cache_close_all (); | |
2632 | ||
136d6dae VP |
2633 | return; |
2634 | } | |
2635 | } | |
2636 | ||
2637 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 2638 | _("could not find a target to follow mourn inferior")); |
136d6dae VP |
2639 | } |
2640 | ||
424163ea DJ |
2641 | /* Look for a target which can describe architectural features, starting |
2642 | from TARGET. If we find one, return its description. */ | |
2643 | ||
2644 | const struct target_desc * | |
2645 | target_read_description (struct target_ops *target) | |
2646 | { | |
2647 | struct target_ops *t; | |
2648 | ||
2649 | for (t = target; t != NULL; t = t->beneath) | |
2650 | if (t->to_read_description != NULL) | |
2651 | { | |
2652 | const struct target_desc *tdesc; | |
2653 | ||
2654 | tdesc = t->to_read_description (t); | |
2655 | if (tdesc) | |
2656 | return tdesc; | |
2657 | } | |
2658 | ||
2659 | return NULL; | |
2660 | } | |
2661 | ||
08388c79 DE |
2662 | /* The default implementation of to_search_memory. |
2663 | This implements a basic search of memory, reading target memory and | |
2664 | performing the search here (as opposed to performing the search in on the | |
2665 | target side with, for example, gdbserver). */ | |
2666 | ||
2667 | int | |
2668 | simple_search_memory (struct target_ops *ops, | |
2669 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
2670 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2671 | CORE_ADDR *found_addrp) | |
2672 | { | |
2673 | /* NOTE: also defined in find.c testcase. */ | |
2674 | #define SEARCH_CHUNK_SIZE 16000 | |
2675 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2676 | /* Buffer to hold memory contents for searching. */ | |
2677 | gdb_byte *search_buf; | |
2678 | unsigned search_buf_size; | |
2679 | struct cleanup *old_cleanups; | |
2680 | ||
2681 | search_buf_size = chunk_size + pattern_len - 1; | |
2682 | ||
2683 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2684 | if (search_space_len < search_buf_size) | |
2685 | search_buf_size = search_space_len; | |
2686 | ||
2687 | search_buf = malloc (search_buf_size); | |
2688 | if (search_buf == NULL) | |
5e1471f5 | 2689 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2690 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2691 | ||
2692 | /* Prime the search buffer. */ | |
2693 | ||
2694 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2695 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2696 | { | |
5e1471f5 | 2697 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
2698 | hex_string (start_addr)); |
2699 | do_cleanups (old_cleanups); | |
2700 | return -1; | |
2701 | } | |
2702 | ||
2703 | /* Perform the search. | |
2704 | ||
2705 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2706 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2707 | read in another N bytes. */ | |
2708 | ||
2709 | while (search_space_len >= pattern_len) | |
2710 | { | |
2711 | gdb_byte *found_ptr; | |
2712 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2713 | ||
2714 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2715 | pattern, pattern_len); | |
2716 | ||
2717 | if (found_ptr != NULL) | |
2718 | { | |
2719 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
5d502164 | 2720 | |
08388c79 DE |
2721 | *found_addrp = found_addr; |
2722 | do_cleanups (old_cleanups); | |
2723 | return 1; | |
2724 | } | |
2725 | ||
2726 | /* Not found in this chunk, skip to next chunk. */ | |
2727 | ||
2728 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2729 | if (search_space_len >= chunk_size) | |
2730 | search_space_len -= chunk_size; | |
2731 | else | |
2732 | search_space_len = 0; | |
2733 | ||
2734 | if (search_space_len >= pattern_len) | |
2735 | { | |
2736 | unsigned keep_len = search_buf_size - chunk_size; | |
8a35fb51 | 2737 | CORE_ADDR read_addr = start_addr + chunk_size + keep_len; |
08388c79 DE |
2738 | int nr_to_read; |
2739 | ||
2740 | /* Copy the trailing part of the previous iteration to the front | |
2741 | of the buffer for the next iteration. */ | |
2742 | gdb_assert (keep_len == pattern_len - 1); | |
2743 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2744 | ||
2745 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2746 | ||
2747 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2748 | search_buf + keep_len, read_addr, | |
2749 | nr_to_read) != nr_to_read) | |
2750 | { | |
9b20d036 MS |
2751 | warning (_("Unable to access target " |
2752 | "memory at %s, halting search."), | |
08388c79 DE |
2753 | hex_string (read_addr)); |
2754 | do_cleanups (old_cleanups); | |
2755 | return -1; | |
2756 | } | |
2757 | ||
2758 | start_addr += chunk_size; | |
2759 | } | |
2760 | } | |
2761 | ||
2762 | /* Not found. */ | |
2763 | ||
2764 | do_cleanups (old_cleanups); | |
2765 | return 0; | |
2766 | } | |
2767 | ||
2768 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2769 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2770 | ||
2771 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2772 | requiring halting of the search (e.g. memory read error). | |
2773 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2774 | ||
2775 | int | |
2776 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2777 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2778 | CORE_ADDR *found_addrp) | |
2779 | { | |
2780 | struct target_ops *t; | |
2781 | int found; | |
2782 | ||
2783 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2784 | so we have to scan the target stack and handle targetdebug | |
2785 | ourselves. */ | |
2786 | ||
2787 | if (targetdebug) | |
2788 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2789 | hex_string (start_addr)); | |
2790 | ||
2791 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2792 | if (t->to_search_memory != NULL) | |
2793 | break; | |
2794 | ||
2795 | if (t != NULL) | |
2796 | { | |
2797 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2798 | pattern, pattern_len, found_addrp); | |
2799 | } | |
2800 | else | |
2801 | { | |
2802 | /* If a special version of to_search_memory isn't available, use the | |
2803 | simple version. */ | |
c35b1492 | 2804 | found = simple_search_memory (current_target.beneath, |
08388c79 DE |
2805 | start_addr, search_space_len, |
2806 | pattern, pattern_len, found_addrp); | |
2807 | } | |
2808 | ||
2809 | if (targetdebug) | |
2810 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2811 | ||
2812 | return found; | |
2813 | } | |
2814 | ||
8edfe269 DJ |
2815 | /* Look through the currently pushed targets. If none of them will |
2816 | be able to restart the currently running process, issue an error | |
2817 | message. */ | |
2818 | ||
2819 | void | |
2820 | target_require_runnable (void) | |
2821 | { | |
2822 | struct target_ops *t; | |
2823 | ||
2824 | for (t = target_stack; t != NULL; t = t->beneath) | |
2825 | { | |
2826 | /* If this target knows how to create a new program, then | |
2827 | assume we will still be able to after killing the current | |
2828 | one. Either killing and mourning will not pop T, or else | |
2829 | find_default_run_target will find it again. */ | |
2830 | if (t->to_create_inferior != NULL) | |
2831 | return; | |
2832 | ||
2833 | /* Do not worry about thread_stratum targets that can not | |
2834 | create inferiors. Assume they will be pushed again if | |
2835 | necessary, and continue to the process_stratum. */ | |
85e747d2 UW |
2836 | if (t->to_stratum == thread_stratum |
2837 | || t->to_stratum == arch_stratum) | |
8edfe269 DJ |
2838 | continue; |
2839 | ||
3e43a32a MS |
2840 | error (_("The \"%s\" target does not support \"run\". " |
2841 | "Try \"help target\" or \"continue\"."), | |
8edfe269 DJ |
2842 | t->to_shortname); |
2843 | } | |
2844 | ||
2845 | /* This function is only called if the target is running. In that | |
2846 | case there should have been a process_stratum target and it | |
c378eb4e | 2847 | should either know how to create inferiors, or not... */ |
9b20d036 | 2848 | internal_error (__FILE__, __LINE__, _("No targets found")); |
8edfe269 DJ |
2849 | } |
2850 | ||
c906108c SS |
2851 | /* Look through the list of possible targets for a target that can |
2852 | execute a run or attach command without any other data. This is | |
2853 | used to locate the default process stratum. | |
2854 | ||
5f667f2d PA |
2855 | If DO_MESG is not NULL, the result is always valid (error() is |
2856 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2857 | |
2858 | static struct target_ops * | |
fba45db2 | 2859 | find_default_run_target (char *do_mesg) |
c906108c SS |
2860 | { |
2861 | struct target_ops **t; | |
2862 | struct target_ops *runable = NULL; | |
2863 | int count; | |
2864 | ||
2865 | count = 0; | |
2866 | ||
2867 | for (t = target_structs; t < target_structs + target_struct_size; | |
2868 | ++t) | |
2869 | { | |
c5aa993b | 2870 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2871 | { |
2872 | runable = *t; | |
2873 | ++count; | |
2874 | } | |
2875 | } | |
2876 | ||
2877 | if (count != 1) | |
5f667f2d PA |
2878 | { |
2879 | if (do_mesg) | |
2880 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2881 | else | |
2882 | return NULL; | |
2883 | } | |
c906108c SS |
2884 | |
2885 | return runable; | |
2886 | } | |
2887 | ||
2888 | void | |
136d6dae | 2889 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2890 | { |
2891 | struct target_ops *t; | |
2892 | ||
c5aa993b | 2893 | t = find_default_run_target ("attach"); |
136d6dae | 2894 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2895 | return; |
2896 | } | |
2897 | ||
c906108c | 2898 | void |
136d6dae VP |
2899 | find_default_create_inferior (struct target_ops *ops, |
2900 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2901 | int from_tty) |
c906108c SS |
2902 | { |
2903 | struct target_ops *t; | |
2904 | ||
c5aa993b | 2905 | t = find_default_run_target ("run"); |
136d6dae | 2906 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
2907 | return; |
2908 | } | |
2909 | ||
2c0b251b | 2910 | static int |
b84876c2 PA |
2911 | find_default_can_async_p (void) |
2912 | { | |
2913 | struct target_ops *t; | |
2914 | ||
5f667f2d PA |
2915 | /* This may be called before the target is pushed on the stack; |
2916 | look for the default process stratum. If there's none, gdb isn't | |
2917 | configured with a native debugger, and target remote isn't | |
2918 | connected yet. */ | |
2919 | t = find_default_run_target (NULL); | |
2920 | if (t && t->to_can_async_p) | |
b84876c2 PA |
2921 | return (t->to_can_async_p) (); |
2922 | return 0; | |
2923 | } | |
2924 | ||
2c0b251b | 2925 | static int |
b84876c2 PA |
2926 | find_default_is_async_p (void) |
2927 | { | |
2928 | struct target_ops *t; | |
2929 | ||
5f667f2d PA |
2930 | /* This may be called before the target is pushed on the stack; |
2931 | look for the default process stratum. If there's none, gdb isn't | |
2932 | configured with a native debugger, and target remote isn't | |
2933 | connected yet. */ | |
2934 | t = find_default_run_target (NULL); | |
2935 | if (t && t->to_is_async_p) | |
b84876c2 PA |
2936 | return (t->to_is_async_p) (); |
2937 | return 0; | |
2938 | } | |
2939 | ||
2c0b251b | 2940 | static int |
9908b566 VP |
2941 | find_default_supports_non_stop (void) |
2942 | { | |
2943 | struct target_ops *t; | |
2944 | ||
2945 | t = find_default_run_target (NULL); | |
2946 | if (t && t->to_supports_non_stop) | |
2947 | return (t->to_supports_non_stop) (); | |
2948 | return 0; | |
2949 | } | |
2950 | ||
2951 | int | |
2c0b251b | 2952 | target_supports_non_stop (void) |
9908b566 VP |
2953 | { |
2954 | struct target_ops *t; | |
5d502164 | 2955 | |
9908b566 VP |
2956 | for (t = ¤t_target; t != NULL; t = t->beneath) |
2957 | if (t->to_supports_non_stop) | |
2958 | return t->to_supports_non_stop (); | |
2959 | ||
2960 | return 0; | |
2961 | } | |
2962 | ||
2963 | ||
07e059b5 VP |
2964 | char * |
2965 | target_get_osdata (const char *type) | |
2966 | { | |
07e059b5 VP |
2967 | struct target_ops *t; |
2968 | ||
739ef7fb PA |
2969 | /* If we're already connected to something that can get us OS |
2970 | related data, use it. Otherwise, try using the native | |
2971 | target. */ | |
2972 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 2973 | t = current_target.beneath; |
739ef7fb PA |
2974 | else |
2975 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
2976 | |
2977 | if (!t) | |
2978 | return NULL; | |
2979 | ||
6d097e65 | 2980 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
2981 | } |
2982 | ||
6c95b8df PA |
2983 | /* Determine the current address space of thread PTID. */ |
2984 | ||
2985 | struct address_space * | |
2986 | target_thread_address_space (ptid_t ptid) | |
2987 | { | |
c0694254 | 2988 | struct address_space *aspace; |
6c95b8df | 2989 | struct inferior *inf; |
c0694254 PA |
2990 | struct target_ops *t; |
2991 | ||
2992 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2993 | { | |
2994 | if (t->to_thread_address_space != NULL) | |
2995 | { | |
2996 | aspace = t->to_thread_address_space (t, ptid); | |
2997 | gdb_assert (aspace); | |
6c95b8df | 2998 | |
c0694254 PA |
2999 | if (targetdebug) |
3000 | fprintf_unfiltered (gdb_stdlog, | |
3001 | "target_thread_address_space (%s) = %d\n", | |
3002 | target_pid_to_str (ptid), | |
3003 | address_space_num (aspace)); | |
3004 | return aspace; | |
3005 | } | |
3006 | } | |
6c95b8df PA |
3007 | |
3008 | /* Fall-back to the "main" address space of the inferior. */ | |
3009 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
3010 | ||
3011 | if (inf == NULL || inf->aspace == NULL) | |
3e43a32a | 3012 | internal_error (__FILE__, __LINE__, |
9b20d036 MS |
3013 | _("Can't determine the current " |
3014 | "address space of thread %s\n"), | |
6c95b8df PA |
3015 | target_pid_to_str (ptid)); |
3016 | ||
3017 | return inf->aspace; | |
3018 | } | |
3019 | ||
e0d24f8d WZ |
3020 | static int |
3021 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3022 | { | |
ffe5a37e | 3023 | return (len <= gdbarch_ptr_bit (target_gdbarch) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
3024 | } |
3025 | ||
5009afc5 AS |
3026 | static int |
3027 | default_watchpoint_addr_within_range (struct target_ops *target, | |
3028 | CORE_ADDR addr, | |
3029 | CORE_ADDR start, int length) | |
3030 | { | |
3031 | return addr >= start && addr < start + length; | |
3032 | } | |
3033 | ||
c2250ad1 UW |
3034 | static struct gdbarch * |
3035 | default_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3036 | { | |
3037 | return target_gdbarch; | |
3038 | } | |
3039 | ||
c906108c | 3040 | static int |
fba45db2 | 3041 | return_zero (void) |
c906108c SS |
3042 | { |
3043 | return 0; | |
3044 | } | |
3045 | ||
3046 | static int | |
fba45db2 | 3047 | return_one (void) |
c906108c SS |
3048 | { |
3049 | return 1; | |
3050 | } | |
3051 | ||
ccaa32c7 GS |
3052 | static int |
3053 | return_minus_one (void) | |
3054 | { | |
3055 | return -1; | |
3056 | } | |
3057 | ||
7a292a7a SS |
3058 | /* Find a single runnable target in the stack and return it. If for |
3059 | some reason there is more than one, return NULL. */ | |
3060 | ||
3061 | struct target_ops * | |
fba45db2 | 3062 | find_run_target (void) |
7a292a7a SS |
3063 | { |
3064 | struct target_ops **t; | |
3065 | struct target_ops *runable = NULL; | |
3066 | int count; | |
c5aa993b | 3067 | |
7a292a7a | 3068 | count = 0; |
c5aa993b | 3069 | |
7a292a7a SS |
3070 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
3071 | { | |
c5aa993b | 3072 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
3073 | { |
3074 | runable = *t; | |
3075 | ++count; | |
3076 | } | |
3077 | } | |
c5aa993b | 3078 | |
7a292a7a SS |
3079 | return (count == 1 ? runable : NULL); |
3080 | } | |
3081 | ||
ed9a39eb JM |
3082 | /* |
3083 | * Find the next target down the stack from the specified target. | |
3084 | */ | |
3085 | ||
3086 | struct target_ops * | |
fba45db2 | 3087 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 3088 | { |
258b763a | 3089 | return t->beneath; |
ed9a39eb JM |
3090 | } |
3091 | ||
c906108c SS |
3092 | \f |
3093 | /* The inferior process has died. Long live the inferior! */ | |
3094 | ||
3095 | void | |
fba45db2 | 3096 | generic_mourn_inferior (void) |
c906108c | 3097 | { |
7f9f62ba | 3098 | ptid_t ptid; |
c906108c | 3099 | |
7f9f62ba | 3100 | ptid = inferior_ptid; |
39f77062 | 3101 | inferior_ptid = null_ptid; |
7f9f62ba PA |
3102 | |
3103 | if (!ptid_equal (ptid, null_ptid)) | |
3104 | { | |
3105 | int pid = ptid_get_pid (ptid); | |
6c95b8df | 3106 | exit_inferior (pid); |
7f9f62ba PA |
3107 | } |
3108 | ||
c906108c SS |
3109 | breakpoint_init_inferior (inf_exited); |
3110 | registers_changed (); | |
3111 | ||
c906108c SS |
3112 | reopen_exec_file (); |
3113 | reinit_frame_cache (); | |
3114 | ||
9a4105ab AC |
3115 | if (deprecated_detach_hook) |
3116 | deprecated_detach_hook (); | |
c906108c SS |
3117 | } |
3118 | \f | |
8807d78b | 3119 | /* Helper function for child_wait and the derivatives of child_wait. |
c906108c SS |
3120 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our |
3121 | translation of that in OURSTATUS. */ | |
3122 | void | |
fba45db2 | 3123 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c | 3124 | { |
c906108c SS |
3125 | if (WIFEXITED (hoststatus)) |
3126 | { | |
3127 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
3128 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
3129 | } | |
3130 | else if (!WIFSTOPPED (hoststatus)) | |
3131 | { | |
3132 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
3133 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
3134 | } | |
3135 | else | |
3136 | { | |
3137 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
3138 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
3139 | } | |
3140 | } | |
3141 | \f | |
fd0a2a6f MK |
3142 | /* Convert a normal process ID to a string. Returns the string in a |
3143 | static buffer. */ | |
c906108c SS |
3144 | |
3145 | char * | |
39f77062 | 3146 | normal_pid_to_str (ptid_t ptid) |
c906108c | 3147 | { |
fd0a2a6f | 3148 | static char buf[32]; |
c906108c | 3149 | |
5fff8fc0 | 3150 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
3151 | return buf; |
3152 | } | |
3153 | ||
2c0b251b | 3154 | static char * |
117de6a9 PA |
3155 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
3156 | { | |
3157 | return normal_pid_to_str (ptid); | |
3158 | } | |
3159 | ||
9b4eba8e HZ |
3160 | /* Error-catcher for target_find_memory_regions. */ |
3161 | static int | |
b8edc417 | 3162 | dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2) |
be4d1333 | 3163 | { |
9b4eba8e | 3164 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3165 | return 0; |
3166 | } | |
3167 | ||
9b4eba8e HZ |
3168 | /* Error-catcher for target_make_corefile_notes. */ |
3169 | static char * | |
3170 | dummy_make_corefile_notes (bfd *ignore1, int *ignore2) | |
be4d1333 | 3171 | { |
9b4eba8e | 3172 | error (_("Command not implemented for this target.")); |
be4d1333 MS |
3173 | return NULL; |
3174 | } | |
3175 | ||
6b04bdb7 MS |
3176 | /* Error-catcher for target_get_bookmark. */ |
3177 | static gdb_byte * | |
3178 | dummy_get_bookmark (char *ignore1, int ignore2) | |
3179 | { | |
3180 | tcomplain (); | |
3181 | return NULL; | |
3182 | } | |
3183 | ||
3184 | /* Error-catcher for target_goto_bookmark. */ | |
3185 | static void | |
3186 | dummy_goto_bookmark (gdb_byte *ignore, int from_tty) | |
3187 | { | |
3188 | tcomplain (); | |
3189 | } | |
3190 | ||
c906108c SS |
3191 | /* Set up the handful of non-empty slots needed by the dummy target |
3192 | vector. */ | |
3193 | ||
3194 | static void | |
fba45db2 | 3195 | init_dummy_target (void) |
c906108c SS |
3196 | { |
3197 | dummy_target.to_shortname = "None"; | |
3198 | dummy_target.to_longname = "None"; | |
3199 | dummy_target.to_doc = ""; | |
3200 | dummy_target.to_attach = find_default_attach; | |
136d6dae VP |
3201 | dummy_target.to_detach = |
3202 | (void (*)(struct target_ops *, char *, int))target_ignore; | |
c906108c | 3203 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
3204 | dummy_target.to_can_async_p = find_default_can_async_p; |
3205 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 3206 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
117de6a9 | 3207 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 3208 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
3209 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
3210 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
6b04bdb7 MS |
3211 | dummy_target.to_get_bookmark = dummy_get_bookmark; |
3212 | dummy_target.to_goto_bookmark = dummy_goto_bookmark; | |
0b603eba | 3213 | dummy_target.to_xfer_partial = default_xfer_partial; |
c35b1492 PA |
3214 | dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero; |
3215 | dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero; | |
3216 | dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero; | |
3217 | dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero; | |
aeaec162 TT |
3218 | dummy_target.to_has_execution |
3219 | = (int (*) (struct target_ops *, ptid_t)) return_zero; | |
7155de5a HZ |
3220 | dummy_target.to_stopped_by_watchpoint = return_zero; |
3221 | dummy_target.to_stopped_data_address = | |
3222 | (int (*) (struct target_ops *, CORE_ADDR *)) return_zero; | |
c906108c SS |
3223 | dummy_target.to_magic = OPS_MAGIC; |
3224 | } | |
c906108c | 3225 | \f |
c906108c | 3226 | static void |
fba45db2 | 3227 | debug_to_open (char *args, int from_tty) |
c906108c SS |
3228 | { |
3229 | debug_target.to_open (args, from_tty); | |
3230 | ||
96baa820 | 3231 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
3232 | } |
3233 | ||
f1c07ab0 AC |
3234 | void |
3235 | target_close (struct target_ops *targ, int quitting) | |
3236 | { | |
3237 | if (targ->to_xclose != NULL) | |
3238 | targ->to_xclose (targ, quitting); | |
3239 | else if (targ->to_close != NULL) | |
3240 | targ->to_close (quitting); | |
947b8855 PA |
3241 | |
3242 | if (targetdebug) | |
3243 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); | |
f1c07ab0 AC |
3244 | } |
3245 | ||
136d6dae VP |
3246 | void |
3247 | target_attach (char *args, int from_tty) | |
3248 | { | |
3249 | struct target_ops *t; | |
5d502164 | 3250 | |
136d6dae VP |
3251 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3252 | { | |
3253 | if (t->to_attach != NULL) | |
3254 | { | |
3255 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
3256 | if (targetdebug) |
3257 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
3258 | args, from_tty); | |
136d6dae VP |
3259 | return; |
3260 | } | |
3261 | } | |
3262 | ||
3263 | internal_error (__FILE__, __LINE__, | |
9b20d036 | 3264 | _("could not find a target to attach")); |
136d6dae VP |
3265 | } |
3266 | ||
28439f5e PA |
3267 | int |
3268 | target_thread_alive (ptid_t ptid) | |
c906108c | 3269 | { |
28439f5e | 3270 | struct target_ops *t; |
5d502164 | 3271 | |
28439f5e PA |
3272 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3273 | { | |
3274 | if (t->to_thread_alive != NULL) | |
3275 | { | |
3276 | int retval; | |
c906108c | 3277 | |
28439f5e PA |
3278 | retval = t->to_thread_alive (t, ptid); |
3279 | if (targetdebug) | |
3280 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
3281 | PIDGET (ptid), retval); | |
3282 | ||
3283 | return retval; | |
3284 | } | |
3285 | } | |
3286 | ||
3287 | return 0; | |
3288 | } | |
3289 | ||
3290 | void | |
3291 | target_find_new_threads (void) | |
3292 | { | |
3293 | struct target_ops *t; | |
5d502164 | 3294 | |
28439f5e PA |
3295 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3296 | { | |
3297 | if (t->to_find_new_threads != NULL) | |
3298 | { | |
3299 | t->to_find_new_threads (t); | |
3300 | if (targetdebug) | |
3301 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
3302 | ||
3303 | return; | |
3304 | } | |
3305 | } | |
c906108c SS |
3306 | } |
3307 | ||
d914c394 SS |
3308 | void |
3309 | target_stop (ptid_t ptid) | |
3310 | { | |
3311 | if (!may_stop) | |
3312 | { | |
3313 | warning (_("May not interrupt or stop the target, ignoring attempt")); | |
3314 | return; | |
3315 | } | |
3316 | ||
3317 | (*current_target.to_stop) (ptid); | |
3318 | } | |
3319 | ||
c906108c | 3320 | static void |
28439f5e | 3321 | debug_to_post_attach (int pid) |
c906108c | 3322 | { |
28439f5e | 3323 | debug_target.to_post_attach (pid); |
c906108c | 3324 | |
28439f5e | 3325 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
3326 | } |
3327 | ||
f00150c9 DE |
3328 | /* Return a pretty printed form of target_waitstatus. |
3329 | Space for the result is malloc'd, caller must free. */ | |
c906108c | 3330 | |
f00150c9 DE |
3331 | char * |
3332 | target_waitstatus_to_string (const struct target_waitstatus *ws) | |
3333 | { | |
3334 | const char *kind_str = "status->kind = "; | |
c906108c | 3335 | |
f00150c9 | 3336 | switch (ws->kind) |
c906108c SS |
3337 | { |
3338 | case TARGET_WAITKIND_EXITED: | |
f00150c9 DE |
3339 | return xstrprintf ("%sexited, status = %d", |
3340 | kind_str, ws->value.integer); | |
c906108c | 3341 | case TARGET_WAITKIND_STOPPED: |
f00150c9 DE |
3342 | return xstrprintf ("%sstopped, signal = %s", |
3343 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 3344 | case TARGET_WAITKIND_SIGNALLED: |
f00150c9 DE |
3345 | return xstrprintf ("%ssignalled, signal = %s", |
3346 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 3347 | case TARGET_WAITKIND_LOADED: |
f00150c9 | 3348 | return xstrprintf ("%sloaded", kind_str); |
c906108c | 3349 | case TARGET_WAITKIND_FORKED: |
f00150c9 | 3350 | return xstrprintf ("%sforked", kind_str); |
c906108c | 3351 | case TARGET_WAITKIND_VFORKED: |
f00150c9 | 3352 | return xstrprintf ("%svforked", kind_str); |
c906108c | 3353 | case TARGET_WAITKIND_EXECD: |
f00150c9 DE |
3354 | return xstrprintf ("%sexecd", kind_str); |
3355 | case TARGET_WAITKIND_SYSCALL_ENTRY: | |
a96d9b2e | 3356 | return xstrprintf ("%sentered syscall", kind_str); |
f00150c9 | 3357 | case TARGET_WAITKIND_SYSCALL_RETURN: |
a96d9b2e | 3358 | return xstrprintf ("%sexited syscall", kind_str); |
c906108c | 3359 | case TARGET_WAITKIND_SPURIOUS: |
f00150c9 DE |
3360 | return xstrprintf ("%sspurious", kind_str); |
3361 | case TARGET_WAITKIND_IGNORE: | |
3362 | return xstrprintf ("%signore", kind_str); | |
3363 | case TARGET_WAITKIND_NO_HISTORY: | |
3364 | return xstrprintf ("%sno-history", kind_str); | |
c906108c | 3365 | default: |
f00150c9 | 3366 | return xstrprintf ("%sunknown???", kind_str); |
c906108c | 3367 | } |
f00150c9 DE |
3368 | } |
3369 | ||
bf0c5130 | 3370 | static void |
56be3814 UW |
3371 | debug_print_register (const char * func, |
3372 | struct regcache *regcache, int regno) | |
bf0c5130 | 3373 | { |
f8d29908 | 3374 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
5d502164 | 3375 | |
bf0c5130 | 3376 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 3377 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
3378 | && gdbarch_register_name (gdbarch, regno) != NULL |
3379 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
3380 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
3381 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
3382 | else |
3383 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 3384 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 3385 | { |
e17a4113 | 3386 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
f8d29908 | 3387 | int i, size = register_size (gdbarch, regno); |
d9d9c31f | 3388 | unsigned char buf[MAX_REGISTER_SIZE]; |
5d502164 | 3389 | |
0ff58721 | 3390 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 3391 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 3392 | for (i = 0; i < size; i++) |
bf0c5130 AC |
3393 | { |
3394 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
3395 | } | |
81c4a259 | 3396 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 3397 | { |
e17a4113 | 3398 | ULONGEST val = extract_unsigned_integer (buf, size, byte_order); |
5d502164 | 3399 | |
0b1553bc UW |
3400 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
3401 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
3402 | } |
3403 | } | |
3404 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3405 | } | |
3406 | ||
28439f5e PA |
3407 | void |
3408 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 3409 | { |
28439f5e | 3410 | struct target_ops *t; |
5d502164 | 3411 | |
28439f5e PA |
3412 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3413 | { | |
3414 | if (t->to_fetch_registers != NULL) | |
3415 | { | |
3416 | t->to_fetch_registers (t, regcache, regno); | |
3417 | if (targetdebug) | |
3418 | debug_print_register ("target_fetch_registers", regcache, regno); | |
3419 | return; | |
3420 | } | |
3421 | } | |
c906108c SS |
3422 | } |
3423 | ||
28439f5e PA |
3424 | void |
3425 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 3426 | { |
28439f5e | 3427 | struct target_ops *t; |
5d502164 | 3428 | |
d914c394 SS |
3429 | if (!may_write_registers) |
3430 | error (_("Writing to registers is not allowed (regno %d)"), regno); | |
3431 | ||
28439f5e PA |
3432 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
3433 | { | |
3434 | if (t->to_store_registers != NULL) | |
3435 | { | |
3436 | t->to_store_registers (t, regcache, regno); | |
3437 | if (targetdebug) | |
3438 | { | |
3439 | debug_print_register ("target_store_registers", regcache, regno); | |
3440 | } | |
3441 | return; | |
3442 | } | |
3443 | } | |
3444 | ||
3445 | noprocess (); | |
c906108c SS |
3446 | } |
3447 | ||
dc146f7c VP |
3448 | int |
3449 | target_core_of_thread (ptid_t ptid) | |
3450 | { | |
3451 | struct target_ops *t; | |
3452 | ||
3453 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3454 | { | |
3455 | if (t->to_core_of_thread != NULL) | |
3456 | { | |
3457 | int retval = t->to_core_of_thread (t, ptid); | |
5d502164 | 3458 | |
dc146f7c | 3459 | if (targetdebug) |
3e43a32a MS |
3460 | fprintf_unfiltered (gdb_stdlog, |
3461 | "target_core_of_thread (%d) = %d\n", | |
dc146f7c VP |
3462 | PIDGET (ptid), retval); |
3463 | return retval; | |
3464 | } | |
3465 | } | |
3466 | ||
3467 | return -1; | |
3468 | } | |
3469 | ||
4a5e7a5b PA |
3470 | int |
3471 | target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size) | |
3472 | { | |
3473 | struct target_ops *t; | |
3474 | ||
3475 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
3476 | { | |
3477 | if (t->to_verify_memory != NULL) | |
3478 | { | |
3479 | int retval = t->to_verify_memory (t, data, memaddr, size); | |
5d502164 | 3480 | |
4a5e7a5b | 3481 | if (targetdebug) |
3e43a32a MS |
3482 | fprintf_unfiltered (gdb_stdlog, |
3483 | "target_verify_memory (%s, %s) = %d\n", | |
4a5e7a5b PA |
3484 | paddress (target_gdbarch, memaddr), |
3485 | pulongest (size), | |
3486 | retval); | |
3487 | return retval; | |
3488 | } | |
3489 | } | |
3490 | ||
3491 | tcomplain (); | |
3492 | } | |
3493 | ||
c906108c | 3494 | static void |
316f2060 | 3495 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 3496 | { |
316f2060 | 3497 | debug_target.to_prepare_to_store (regcache); |
c906108c | 3498 | |
96baa820 | 3499 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
3500 | } |
3501 | ||
3502 | static int | |
961cb7b5 | 3503 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
3504 | int write, struct mem_attrib *attrib, |
3505 | struct target_ops *target) | |
c906108c SS |
3506 | { |
3507 | int retval; | |
3508 | ||
c8e73a31 AC |
3509 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
3510 | attrib, target); | |
c906108c | 3511 | |
96baa820 | 3512 | fprintf_unfiltered (gdb_stdlog, |
53b71562 | 3513 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
5af949e3 UW |
3514 | paddress (target_gdbarch, memaddr), len, |
3515 | write ? "write" : "read", retval); | |
c906108c | 3516 | |
c906108c SS |
3517 | if (retval > 0) |
3518 | { | |
3519 | int i; | |
3520 | ||
96baa820 | 3521 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
3522 | for (i = 0; i < retval; i++) |
3523 | { | |
53b71562 | 3524 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
3525 | { |
3526 | if (targetdebug < 2 && i > 0) | |
3527 | { | |
3528 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
3529 | break; | |
3530 | } | |
3531 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
3532 | } | |
2bc416ba | 3533 | |
96baa820 | 3534 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
3535 | } |
3536 | } | |
3537 | ||
96baa820 | 3538 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
3539 | |
3540 | return retval; | |
3541 | } | |
3542 | ||
3543 | static void | |
fba45db2 | 3544 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
3545 | { |
3546 | debug_target.to_files_info (target); | |
3547 | ||
96baa820 | 3548 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
3549 | } |
3550 | ||
3551 | static int | |
a6d9a66e UW |
3552 | debug_to_insert_breakpoint (struct gdbarch *gdbarch, |
3553 | struct bp_target_info *bp_tgt) | |
c906108c SS |
3554 | { |
3555 | int retval; | |
3556 | ||
a6d9a66e | 3557 | retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt); |
c906108c | 3558 | |
96baa820 | 3559 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
3560 | "target_insert_breakpoint (%s, xxx) = %ld\n", |
3561 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 3562 | (unsigned long) retval); |
c906108c SS |
3563 | return retval; |
3564 | } | |
3565 | ||
3566 | static int | |
a6d9a66e UW |
3567 | debug_to_remove_breakpoint (struct gdbarch *gdbarch, |
3568 | struct bp_target_info *bp_tgt) | |
c906108c SS |
3569 | { |
3570 | int retval; | |
3571 | ||
a6d9a66e | 3572 | retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt); |
c906108c | 3573 | |
96baa820 | 3574 | fprintf_unfiltered (gdb_stdlog, |
bd91e7ae OS |
3575 | "target_remove_breakpoint (%s, xxx) = %ld\n", |
3576 | core_addr_to_string (bp_tgt->placed_address), | |
104c1213 | 3577 | (unsigned long) retval); |
c906108c SS |
3578 | return retval; |
3579 | } | |
3580 | ||
ccaa32c7 GS |
3581 | static int |
3582 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
3583 | { | |
3584 | int retval; | |
3585 | ||
3586 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
3587 | ||
3588 | fprintf_unfiltered (gdb_stdlog, | |
3589 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
3590 | (unsigned long) type, | |
3591 | (unsigned long) cnt, | |
3592 | (unsigned long) from_tty, | |
3593 | (unsigned long) retval); | |
3594 | return retval; | |
3595 | } | |
3596 | ||
e0d24f8d WZ |
3597 | static int |
3598 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
3599 | { | |
3600 | CORE_ADDR retval; | |
3601 | ||
3602 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
3603 | ||
3604 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3605 | "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n", |
3606 | core_addr_to_string (addr), (unsigned long) len, | |
3607 | core_addr_to_string (retval)); | |
e0d24f8d WZ |
3608 | return retval; |
3609 | } | |
3610 | ||
0cf6dd15 TJB |
3611 | static int |
3612 | debug_to_can_accel_watchpoint_condition (CORE_ADDR addr, int len, int rw, | |
3613 | struct expression *cond) | |
3614 | { | |
3615 | int retval; | |
3616 | ||
3e43a32a MS |
3617 | retval = debug_target.to_can_accel_watchpoint_condition (addr, len, |
3618 | rw, cond); | |
0cf6dd15 TJB |
3619 | |
3620 | fprintf_unfiltered (gdb_stdlog, | |
3e43a32a MS |
3621 | "target_can_accel_watchpoint_condition " |
3622 | "(%s, %d, %d, %s) = %ld\n", | |
bd91e7ae OS |
3623 | core_addr_to_string (addr), len, rw, |
3624 | host_address_to_string (cond), (unsigned long) retval); | |
0cf6dd15 TJB |
3625 | return retval; |
3626 | } | |
3627 | ||
ccaa32c7 GS |
3628 | static int |
3629 | debug_to_stopped_by_watchpoint (void) | |
3630 | { | |
3631 | int retval; | |
3632 | ||
3633 | retval = debug_target.to_stopped_by_watchpoint (); | |
3634 | ||
3635 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 3636 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
3637 | (unsigned long) retval); |
3638 | return retval; | |
3639 | } | |
3640 | ||
4aa7a7f5 JJ |
3641 | static int |
3642 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 3643 | { |
4aa7a7f5 | 3644 | int retval; |
ccaa32c7 | 3645 | |
4aa7a7f5 | 3646 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
3647 | |
3648 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3649 | "target_stopped_data_address ([%s]) = %ld\n", |
3650 | core_addr_to_string (*addr), | |
4aa7a7f5 | 3651 | (unsigned long)retval); |
ccaa32c7 GS |
3652 | return retval; |
3653 | } | |
3654 | ||
5009afc5 AS |
3655 | static int |
3656 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
3657 | CORE_ADDR addr, | |
3658 | CORE_ADDR start, int length) | |
3659 | { | |
3660 | int retval; | |
3661 | ||
3662 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
3663 | start, length); | |
3664 | ||
3665 | fprintf_filtered (gdb_stdlog, | |
bd91e7ae OS |
3666 | "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n", |
3667 | core_addr_to_string (addr), core_addr_to_string (start), | |
3668 | length, retval); | |
5009afc5 AS |
3669 | return retval; |
3670 | } | |
3671 | ||
ccaa32c7 | 3672 | static int |
a6d9a66e UW |
3673 | debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch, |
3674 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
3675 | { |
3676 | int retval; | |
3677 | ||
a6d9a66e | 3678 | retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
3679 | |
3680 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3681 | "target_insert_hw_breakpoint (%s, xxx) = %ld\n", |
3682 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
3683 | (unsigned long) retval); |
3684 | return retval; | |
3685 | } | |
3686 | ||
3687 | static int | |
a6d9a66e UW |
3688 | debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch, |
3689 | struct bp_target_info *bp_tgt) | |
ccaa32c7 GS |
3690 | { |
3691 | int retval; | |
3692 | ||
a6d9a66e | 3693 | retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt); |
ccaa32c7 GS |
3694 | |
3695 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3696 | "target_remove_hw_breakpoint (%s, xxx) = %ld\n", |
3697 | core_addr_to_string (bp_tgt->placed_address), | |
ccaa32c7 GS |
3698 | (unsigned long) retval); |
3699 | return retval; | |
3700 | } | |
3701 | ||
3702 | static int | |
0cf6dd15 TJB |
3703 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type, |
3704 | struct expression *cond) | |
ccaa32c7 GS |
3705 | { |
3706 | int retval; | |
3707 | ||
0cf6dd15 | 3708 | retval = debug_target.to_insert_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
3709 | |
3710 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3711 | "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n", |
3712 | core_addr_to_string (addr), len, type, | |
3713 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
3714 | return retval; |
3715 | } | |
3716 | ||
3717 | static int | |
0cf6dd15 TJB |
3718 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type, |
3719 | struct expression *cond) | |
ccaa32c7 GS |
3720 | { |
3721 | int retval; | |
3722 | ||
0cf6dd15 | 3723 | retval = debug_target.to_remove_watchpoint (addr, len, type, cond); |
ccaa32c7 GS |
3724 | |
3725 | fprintf_unfiltered (gdb_stdlog, | |
bd91e7ae OS |
3726 | "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n", |
3727 | core_addr_to_string (addr), len, type, | |
3728 | host_address_to_string (cond), (unsigned long) retval); | |
ccaa32c7 GS |
3729 | return retval; |
3730 | } | |
3731 | ||
c906108c | 3732 | static void |
fba45db2 | 3733 | debug_to_terminal_init (void) |
c906108c SS |
3734 | { |
3735 | debug_target.to_terminal_init (); | |
3736 | ||
96baa820 | 3737 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
3738 | } |
3739 | ||
3740 | static void | |
fba45db2 | 3741 | debug_to_terminal_inferior (void) |
c906108c SS |
3742 | { |
3743 | debug_target.to_terminal_inferior (); | |
3744 | ||
96baa820 | 3745 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
3746 | } |
3747 | ||
3748 | static void | |
fba45db2 | 3749 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
3750 | { |
3751 | debug_target.to_terminal_ours_for_output (); | |
3752 | ||
96baa820 | 3753 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
3754 | } |
3755 | ||
3756 | static void | |
fba45db2 | 3757 | debug_to_terminal_ours (void) |
c906108c SS |
3758 | { |
3759 | debug_target.to_terminal_ours (); | |
3760 | ||
96baa820 | 3761 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
3762 | } |
3763 | ||
a790ad35 SC |
3764 | static void |
3765 | debug_to_terminal_save_ours (void) | |
3766 | { | |
3767 | debug_target.to_terminal_save_ours (); | |
3768 | ||
3769 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
3770 | } | |
3771 | ||
c906108c | 3772 | static void |
fba45db2 | 3773 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
3774 | { |
3775 | debug_target.to_terminal_info (arg, from_tty); | |
3776 | ||
96baa820 | 3777 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
3778 | from_tty); |
3779 | } | |
3780 | ||
c906108c | 3781 | static void |
fba45db2 | 3782 | debug_to_load (char *args, int from_tty) |
c906108c SS |
3783 | { |
3784 | debug_target.to_load (args, from_tty); | |
3785 | ||
96baa820 | 3786 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
3787 | } |
3788 | ||
c906108c | 3789 | static void |
39f77062 | 3790 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 3791 | { |
39f77062 | 3792 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 3793 | |
96baa820 | 3794 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 3795 | PIDGET (ptid)); |
c906108c SS |
3796 | } |
3797 | ||
77b06cd7 | 3798 | static int |
fba45db2 | 3799 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 3800 | { |
77b06cd7 TJB |
3801 | int retval; |
3802 | ||
3803 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
3804 | ||
3805 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", | |
3806 | pid, retval); | |
c906108c | 3807 | |
77b06cd7 | 3808 | return retval; |
c906108c SS |
3809 | } |
3810 | ||
3811 | static int | |
fba45db2 | 3812 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 3813 | { |
c5aa993b | 3814 | int retval; |
c906108c SS |
3815 | |
3816 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
3817 | ||
96baa820 | 3818 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 3819 | pid, retval); |
c906108c SS |
3820 | |
3821 | return retval; | |
3822 | } | |
3823 | ||
77b06cd7 | 3824 | static int |
fba45db2 | 3825 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 3826 | { |
77b06cd7 TJB |
3827 | int retval; |
3828 | ||
3829 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
c906108c | 3830 | |
77b06cd7 TJB |
3831 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n", |
3832 | pid, retval); | |
3833 | ||
3834 | return retval; | |
c906108c SS |
3835 | } |
3836 | ||
3837 | static int | |
fba45db2 | 3838 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 3839 | { |
c5aa993b | 3840 | int retval; |
c906108c SS |
3841 | |
3842 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
3843 | ||
96baa820 | 3844 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 3845 | pid, retval); |
c906108c SS |
3846 | |
3847 | return retval; | |
3848 | } | |
3849 | ||
77b06cd7 | 3850 | static int |
fba45db2 | 3851 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 3852 | { |
77b06cd7 TJB |
3853 | int retval; |
3854 | ||
3855 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
c906108c | 3856 | |
77b06cd7 TJB |
3857 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
3858 | pid, retval); | |
3859 | ||
3860 | return retval; | |
c906108c SS |
3861 | } |
3862 | ||
3863 | static int | |
fba45db2 | 3864 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 3865 | { |
c5aa993b | 3866 | int retval; |
c906108c SS |
3867 | |
3868 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
3869 | ||
96baa820 | 3870 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 3871 | pid, retval); |
c906108c SS |
3872 | |
3873 | return retval; | |
3874 | } | |
3875 | ||
c906108c | 3876 | static int |
fba45db2 | 3877 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 3878 | { |
c5aa993b | 3879 | int has_exited; |
c906108c SS |
3880 | |
3881 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
3882 | ||
96baa820 | 3883 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 3884 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
3885 | |
3886 | return has_exited; | |
3887 | } | |
3888 | ||
c906108c | 3889 | static int |
fba45db2 | 3890 | debug_to_can_run (void) |
c906108c SS |
3891 | { |
3892 | int retval; | |
3893 | ||
3894 | retval = debug_target.to_can_run (); | |
3895 | ||
96baa820 | 3896 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
3897 | |
3898 | return retval; | |
3899 | } | |
3900 | ||
3901 | static void | |
39f77062 | 3902 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 3903 | { |
39f77062 | 3904 | debug_target.to_notice_signals (ptid); |
c906108c | 3905 | |
39f77062 KB |
3906 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
3907 | PIDGET (ptid)); | |
c906108c SS |
3908 | } |
3909 | ||
c2250ad1 UW |
3910 | static struct gdbarch * |
3911 | debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid) | |
3912 | { | |
3913 | struct gdbarch *retval; | |
3914 | ||
3915 | retval = debug_target.to_thread_architecture (ops, ptid); | |
3916 | ||
3e43a32a MS |
3917 | fprintf_unfiltered (gdb_stdlog, |
3918 | "target_thread_architecture (%s) = %s [%s]\n", | |
3919 | target_pid_to_str (ptid), | |
3920 | host_address_to_string (retval), | |
c2250ad1 UW |
3921 | gdbarch_bfd_arch_info (retval)->printable_name); |
3922 | return retval; | |
3923 | } | |
3924 | ||
c906108c | 3925 | static void |
94cc34af | 3926 | debug_to_stop (ptid_t ptid) |
c906108c | 3927 | { |
94cc34af | 3928 | debug_target.to_stop (ptid); |
c906108c | 3929 | |
94cc34af PA |
3930 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
3931 | target_pid_to_str (ptid)); | |
c906108c SS |
3932 | } |
3933 | ||
96baa820 JM |
3934 | static void |
3935 | debug_to_rcmd (char *command, | |
d9fcf2fb | 3936 | struct ui_file *outbuf) |
96baa820 JM |
3937 | { |
3938 | debug_target.to_rcmd (command, outbuf); | |
3939 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
3940 | } | |
3941 | ||
c906108c | 3942 | static char * |
fba45db2 | 3943 | debug_to_pid_to_exec_file (int pid) |
c906108c | 3944 | { |
c5aa993b | 3945 | char *exec_file; |
c906108c SS |
3946 | |
3947 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
3948 | ||
96baa820 | 3949 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 3950 | pid, exec_file); |
c906108c SS |
3951 | |
3952 | return exec_file; | |
3953 | } | |
3954 | ||
c906108c | 3955 | static void |
fba45db2 | 3956 | setup_target_debug (void) |
c906108c SS |
3957 | { |
3958 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
3959 | ||
3960 | current_target.to_open = debug_to_open; | |
c906108c | 3961 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 3962 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 3963 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
3964 | current_target.to_files_info = debug_to_files_info; |
3965 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
3966 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
3967 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
3968 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
3969 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
3970 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
3971 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
3972 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
3973 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
3e43a32a MS |
3974 | current_target.to_watchpoint_addr_within_range |
3975 | = debug_to_watchpoint_addr_within_range; | |
3976 | current_target.to_region_ok_for_hw_watchpoint | |
3977 | = debug_to_region_ok_for_hw_watchpoint; | |
3978 | current_target.to_can_accel_watchpoint_condition | |
3979 | = debug_to_can_accel_watchpoint_condition; | |
c906108c SS |
3980 | current_target.to_terminal_init = debug_to_terminal_init; |
3981 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3e43a32a MS |
3982 | current_target.to_terminal_ours_for_output |
3983 | = debug_to_terminal_ours_for_output; | |
c906108c | 3984 | current_target.to_terminal_ours = debug_to_terminal_ours; |
a790ad35 | 3985 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 3986 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c | 3987 | current_target.to_load = debug_to_load; |
c906108c | 3988 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
c906108c SS |
3989 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
3990 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
3991 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
3992 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
3993 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
3994 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 3995 | current_target.to_has_exited = debug_to_has_exited; |
c906108c SS |
3996 | current_target.to_can_run = debug_to_can_run; |
3997 | current_target.to_notice_signals = debug_to_notice_signals; | |
c906108c | 3998 | current_target.to_stop = debug_to_stop; |
96baa820 | 3999 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 4000 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c2250ad1 | 4001 | current_target.to_thread_architecture = debug_to_thread_architecture; |
c906108c | 4002 | } |
c906108c | 4003 | \f |
c5aa993b JM |
4004 | |
4005 | static char targ_desc[] = | |
3e43a32a MS |
4006 | "Names of targets and files being debugged.\nShows the entire \ |
4007 | stack of targets currently in use (including the exec-file,\n\ | |
c906108c SS |
4008 | core-file, and process, if any), as well as the symbol file name."; |
4009 | ||
96baa820 JM |
4010 | static void |
4011 | do_monitor_command (char *cmd, | |
4012 | int from_tty) | |
4013 | { | |
2b5fe715 AC |
4014 | if ((current_target.to_rcmd |
4015 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 4016 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
4017 | && (debug_target.to_rcmd |
4018 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 4019 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
4020 | target_rcmd (cmd, gdb_stdtarg); |
4021 | } | |
4022 | ||
87680a14 JB |
4023 | /* Print the name of each layers of our target stack. */ |
4024 | ||
4025 | static void | |
4026 | maintenance_print_target_stack (char *cmd, int from_tty) | |
4027 | { | |
4028 | struct target_ops *t; | |
4029 | ||
4030 | printf_filtered (_("The current target stack is:\n")); | |
4031 | ||
4032 | for (t = target_stack; t != NULL; t = t->beneath) | |
4033 | { | |
4034 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
4035 | } | |
4036 | } | |
4037 | ||
c6ebd6cf VP |
4038 | /* Controls if async mode is permitted. */ |
4039 | int target_async_permitted = 0; | |
4040 | ||
4041 | /* The set command writes to this variable. If the inferior is | |
4042 | executing, linux_nat_async_permitted is *not* updated. */ | |
4043 | static int target_async_permitted_1 = 0; | |
4044 | ||
4045 | static void | |
4046 | set_maintenance_target_async_permitted (char *args, int from_tty, | |
4047 | struct cmd_list_element *c) | |
4048 | { | |
c35b1492 | 4049 | if (have_live_inferiors ()) |
c6ebd6cf VP |
4050 | { |
4051 | target_async_permitted_1 = target_async_permitted; | |
4052 | error (_("Cannot change this setting while the inferior is running.")); | |
4053 | } | |
4054 | ||
4055 | target_async_permitted = target_async_permitted_1; | |
4056 | } | |
4057 | ||
4058 | static void | |
4059 | show_maintenance_target_async_permitted (struct ui_file *file, int from_tty, | |
4060 | struct cmd_list_element *c, | |
4061 | const char *value) | |
4062 | { | |
3e43a32a MS |
4063 | fprintf_filtered (file, |
4064 | _("Controlling the inferior in " | |
4065 | "asynchronous mode is %s.\n"), value); | |
c6ebd6cf VP |
4066 | } |
4067 | ||
d914c394 SS |
4068 | /* Temporary copies of permission settings. */ |
4069 | ||
4070 | static int may_write_registers_1 = 1; | |
4071 | static int may_write_memory_1 = 1; | |
4072 | static int may_insert_breakpoints_1 = 1; | |
4073 | static int may_insert_tracepoints_1 = 1; | |
4074 | static int may_insert_fast_tracepoints_1 = 1; | |
4075 | static int may_stop_1 = 1; | |
4076 | ||
4077 | /* Make the user-set values match the real values again. */ | |
4078 | ||
4079 | void | |
4080 | update_target_permissions (void) | |
4081 | { | |
4082 | may_write_registers_1 = may_write_registers; | |
4083 | may_write_memory_1 = may_write_memory; | |
4084 | may_insert_breakpoints_1 = may_insert_breakpoints; | |
4085 | may_insert_tracepoints_1 = may_insert_tracepoints; | |
4086 | may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints; | |
4087 | may_stop_1 = may_stop; | |
4088 | } | |
4089 | ||
4090 | /* The one function handles (most of) the permission flags in the same | |
4091 | way. */ | |
4092 | ||
4093 | static void | |
4094 | set_target_permissions (char *args, int from_tty, | |
4095 | struct cmd_list_element *c) | |
4096 | { | |
4097 | if (target_has_execution) | |
4098 | { | |
4099 | update_target_permissions (); | |
4100 | error (_("Cannot change this setting while the inferior is running.")); | |
4101 | } | |
4102 | ||
4103 | /* Make the real values match the user-changed values. */ | |
4104 | may_write_registers = may_write_registers_1; | |
4105 | may_insert_breakpoints = may_insert_breakpoints_1; | |
4106 | may_insert_tracepoints = may_insert_tracepoints_1; | |
4107 | may_insert_fast_tracepoints = may_insert_fast_tracepoints_1; | |
4108 | may_stop = may_stop_1; | |
4109 | update_observer_mode (); | |
4110 | } | |
4111 | ||
4112 | /* Set memory write permission independently of observer mode. */ | |
4113 | ||
4114 | static void | |
4115 | set_write_memory_permission (char *args, int from_tty, | |
4116 | struct cmd_list_element *c) | |
4117 | { | |
4118 | /* Make the real values match the user-changed values. */ | |
4119 | may_write_memory = may_write_memory_1; | |
4120 | update_observer_mode (); | |
4121 | } | |
4122 | ||
4123 | ||
c906108c | 4124 | void |
fba45db2 | 4125 | initialize_targets (void) |
c906108c SS |
4126 | { |
4127 | init_dummy_target (); | |
4128 | push_target (&dummy_target); | |
4129 | ||
4130 | add_info ("target", target_info, targ_desc); | |
4131 | add_info ("files", target_info, targ_desc); | |
4132 | ||
85c07804 AC |
4133 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
4134 | Set target debugging."), _("\ | |
4135 | Show target debugging."), _("\ | |
333dabeb DJ |
4136 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
4137 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
4138 | command."), |
4139 | NULL, | |
920d2a44 | 4140 | show_targetdebug, |
85c07804 | 4141 | &setdebuglist, &showdebuglist); |
3a11626d | 4142 | |
2bc416ba | 4143 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
4144 | &trust_readonly, _("\ |
4145 | Set mode for reading from readonly sections."), _("\ | |
4146 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
4147 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
4148 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 4149 | result in significant performance improvement for remote targets."), |
2c5b56ce | 4150 | NULL, |
920d2a44 | 4151 | show_trust_readonly, |
e707bbc2 | 4152 | &setlist, &showlist); |
96baa820 JM |
4153 | |
4154 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 4155 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 4156 | |
87680a14 JB |
4157 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
4158 | _("Print the name of each layer of the internal target stack."), | |
4159 | &maintenanceprintlist); | |
4160 | ||
c6ebd6cf VP |
4161 | add_setshow_boolean_cmd ("target-async", no_class, |
4162 | &target_async_permitted_1, _("\ | |
4163 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
4164 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
4165 | Tells gdb whether to control the inferior in asynchronous mode."), | |
4166 | set_maintenance_target_async_permitted, | |
4167 | show_maintenance_target_async_permitted, | |
4168 | &setlist, | |
4169 | &showlist); | |
4170 | ||
4e5d721f | 4171 | add_setshow_boolean_cmd ("stack-cache", class_support, |
9cf1b572 | 4172 | &stack_cache_enabled_p_1, _("\ |
4e5d721f DE |
4173 | Set cache use for stack access."), _("\ |
4174 | Show cache use for stack access."), _("\ | |
4175 | When on, use the data cache for all stack access, regardless of any\n\ | |
4176 | configured memory regions. This improves remote performance significantly.\n\ | |
4177 | By default, caching for stack access is on."), | |
4178 | set_stack_cache_enabled_p, | |
4179 | show_stack_cache_enabled_p, | |
4180 | &setlist, &showlist); | |
4181 | ||
d914c394 SS |
4182 | add_setshow_boolean_cmd ("may-write-registers", class_support, |
4183 | &may_write_registers_1, _("\ | |
4184 | Set permission to write into registers."), _("\ | |
4185 | Show permission to write into registers."), _("\ | |
4186 | When this permission is on, GDB may write into the target's registers.\n\ | |
4187 | Otherwise, any sort of write attempt will result in an error."), | |
4188 | set_target_permissions, NULL, | |
4189 | &setlist, &showlist); | |
4190 | ||
4191 | add_setshow_boolean_cmd ("may-write-memory", class_support, | |
4192 | &may_write_memory_1, _("\ | |
4193 | Set permission to write into target memory."), _("\ | |
4194 | Show permission to write into target memory."), _("\ | |
4195 | When this permission is on, GDB may write into the target's memory.\n\ | |
4196 | Otherwise, any sort of write attempt will result in an error."), | |
4197 | set_write_memory_permission, NULL, | |
4198 | &setlist, &showlist); | |
4199 | ||
4200 | add_setshow_boolean_cmd ("may-insert-breakpoints", class_support, | |
4201 | &may_insert_breakpoints_1, _("\ | |
4202 | Set permission to insert breakpoints in the target."), _("\ | |
4203 | Show permission to insert breakpoints in the target."), _("\ | |
4204 | When this permission is on, GDB may insert breakpoints in the program.\n\ | |
4205 | Otherwise, any sort of insertion attempt will result in an error."), | |
4206 | set_target_permissions, NULL, | |
4207 | &setlist, &showlist); | |
4208 | ||
4209 | add_setshow_boolean_cmd ("may-insert-tracepoints", class_support, | |
4210 | &may_insert_tracepoints_1, _("\ | |
4211 | Set permission to insert tracepoints in the target."), _("\ | |
4212 | Show permission to insert tracepoints in the target."), _("\ | |
4213 | When this permission is on, GDB may insert tracepoints in the program.\n\ | |
4214 | Otherwise, any sort of insertion attempt will result in an error."), | |
4215 | set_target_permissions, NULL, | |
4216 | &setlist, &showlist); | |
4217 | ||
4218 | add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support, | |
4219 | &may_insert_fast_tracepoints_1, _("\ | |
4220 | Set permission to insert fast tracepoints in the target."), _("\ | |
4221 | Show permission to insert fast tracepoints in the target."), _("\ | |
4222 | When this permission is on, GDB may insert fast tracepoints.\n\ | |
4223 | Otherwise, any sort of insertion attempt will result in an error."), | |
4224 | set_target_permissions, NULL, | |
4225 | &setlist, &showlist); | |
4226 | ||
4227 | add_setshow_boolean_cmd ("may-interrupt", class_support, | |
4228 | &may_stop_1, _("\ | |
4229 | Set permission to interrupt or signal the target."), _("\ | |
4230 | Show permission to interrupt or signal the target."), _("\ | |
4231 | When this permission is on, GDB may interrupt/stop the target's execution.\n\ | |
4232 | Otherwise, any attempt to interrupt or stop will be ignored."), | |
4233 | set_target_permissions, NULL, | |
4234 | &setlist, &showlist); | |
4235 | ||
4236 | ||
8add0441 | 4237 | target_dcache = dcache_init (); |
c906108c | 4238 | } |