Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
197e01b6 | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
f6519ebc MK |
4 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
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 | |
13 | the Free Software Foundation; either version 2 of the License, or | |
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 JM |
21 | You should have received a copy of the GNU General Public License |
22 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
23 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
24 | Boston, MA 02110-1301, USA. */ | |
c906108c SS |
25 | |
26 | #include "defs.h" | |
27 | #include <errno.h> | |
c906108c SS |
28 | #include "gdb_string.h" |
29 | #include "target.h" | |
30 | #include "gdbcmd.h" | |
31 | #include "symtab.h" | |
32 | #include "inferior.h" | |
33 | #include "bfd.h" | |
34 | #include "symfile.h" | |
35 | #include "objfiles.h" | |
03f2053f | 36 | #include "gdb_wait.h" |
4930751a | 37 | #include "dcache.h" |
c906108c | 38 | #include <signal.h> |
4e052eda | 39 | #include "regcache.h" |
0088c768 | 40 | #include "gdb_assert.h" |
b6591e8b | 41 | #include "gdbcore.h" |
c906108c | 42 | |
a14ed312 | 43 | static void target_info (char *, int); |
c906108c | 44 | |
a14ed312 | 45 | static void maybe_kill_then_attach (char *, int); |
c906108c | 46 | |
a14ed312 | 47 | static void kill_or_be_killed (int); |
c906108c | 48 | |
a14ed312 | 49 | static void default_terminal_info (char *, int); |
c906108c | 50 | |
e0d24f8d WZ |
51 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
52 | ||
a14ed312 | 53 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 54 | |
a14ed312 | 55 | static void tcomplain (void); |
c906108c | 56 | |
a14ed312 | 57 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 58 | |
a14ed312 | 59 | static int return_zero (void); |
c906108c | 60 | |
a14ed312 | 61 | static int return_one (void); |
c906108c | 62 | |
ccaa32c7 GS |
63 | static int return_minus_one (void); |
64 | ||
a14ed312 | 65 | void target_ignore (void); |
c906108c | 66 | |
a14ed312 | 67 | static void target_command (char *, int); |
c906108c | 68 | |
a14ed312 | 69 | static struct target_ops *find_default_run_target (char *); |
c906108c | 70 | |
a14ed312 | 71 | static void nosupport_runtime (void); |
392a587b | 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 | |
917317f4 JM |
79 | /* Transfer LEN bytes between target address MEMADDR and GDB address |
80 | MYADDR. Returns 0 for success, errno code for failure (which | |
81 | includes partial transfers -- if you want a more useful response to | |
82 | partial transfers, try either target_read_memory_partial or | |
83 | target_write_memory_partial). */ | |
c906108c | 84 | |
1b0ba102 | 85 | static int target_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, |
570b8f7c | 86 | int write); |
c906108c | 87 | |
a14ed312 | 88 | static void init_dummy_target (void); |
c906108c | 89 | |
aa869812 AC |
90 | static struct target_ops debug_target; |
91 | ||
a14ed312 | 92 | static void debug_to_open (char *, int); |
c906108c | 93 | |
a14ed312 | 94 | static void debug_to_close (int); |
c906108c | 95 | |
a14ed312 | 96 | static void debug_to_attach (char *, int); |
c906108c | 97 | |
a14ed312 | 98 | static void debug_to_detach (char *, int); |
c906108c | 99 | |
39f77062 | 100 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 101 | |
39f77062 | 102 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 103 | |
a14ed312 | 104 | static void debug_to_fetch_registers (int); |
c906108c | 105 | |
a14ed312 | 106 | static void debug_to_store_registers (int); |
c906108c | 107 | |
a14ed312 | 108 | static void debug_to_prepare_to_store (void); |
c906108c | 109 | |
a14ed312 | 110 | static void debug_to_files_info (struct target_ops *); |
c906108c | 111 | |
8181d85f | 112 | static int debug_to_insert_breakpoint (struct bp_target_info *); |
c906108c | 113 | |
8181d85f | 114 | static int debug_to_remove_breakpoint (struct bp_target_info *); |
c906108c | 115 | |
ccaa32c7 GS |
116 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
117 | ||
8181d85f | 118 | static int debug_to_insert_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 | 119 | |
8181d85f | 120 | static int debug_to_remove_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 GS |
121 | |
122 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
123 | ||
124 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
125 | ||
126 | static int debug_to_stopped_by_watchpoint (void); | |
127 | ||
4aa7a7f5 | 128 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 129 | |
e0d24f8d WZ |
130 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
131 | ||
a14ed312 | 132 | static void debug_to_terminal_init (void); |
c906108c | 133 | |
a14ed312 | 134 | static void debug_to_terminal_inferior (void); |
c906108c | 135 | |
a14ed312 | 136 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 137 | |
a790ad35 SC |
138 | static void debug_to_terminal_save_ours (void); |
139 | ||
a14ed312 | 140 | static void debug_to_terminal_ours (void); |
c906108c | 141 | |
a14ed312 | 142 | static void debug_to_terminal_info (char *, int); |
c906108c | 143 | |
a14ed312 | 144 | static void debug_to_kill (void); |
c906108c | 145 | |
a14ed312 | 146 | static void debug_to_load (char *, int); |
c906108c | 147 | |
a14ed312 | 148 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 149 | |
a14ed312 | 150 | static void debug_to_mourn_inferior (void); |
c906108c | 151 | |
a14ed312 | 152 | static int debug_to_can_run (void); |
c906108c | 153 | |
39f77062 | 154 | static void debug_to_notice_signals (ptid_t); |
c906108c | 155 | |
39f77062 | 156 | static int debug_to_thread_alive (ptid_t); |
c906108c | 157 | |
a14ed312 | 158 | static void debug_to_stop (void); |
c906108c | 159 | |
5ac10fd1 AC |
160 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
161 | wierd and mysterious ways. Putting the variable here lets those | |
162 | wierd and mysterious ways keep building while they are being | |
163 | converted to the inferior inheritance structure. */ | |
1df84f13 | 164 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 165 | |
c906108c SS |
166 | /* Pointer to array of target architecture structures; the size of the |
167 | array; the current index into the array; the allocated size of the | |
168 | array. */ | |
169 | struct target_ops **target_structs; | |
170 | unsigned target_struct_size; | |
171 | unsigned target_struct_index; | |
172 | unsigned target_struct_allocsize; | |
173 | #define DEFAULT_ALLOCSIZE 10 | |
174 | ||
175 | /* The initial current target, so that there is always a semi-valid | |
176 | current target. */ | |
177 | ||
178 | static struct target_ops dummy_target; | |
179 | ||
180 | /* Top of target stack. */ | |
181 | ||
258b763a | 182 | static struct target_ops *target_stack; |
c906108c SS |
183 | |
184 | /* The target structure we are currently using to talk to a process | |
185 | or file or whatever "inferior" we have. */ | |
186 | ||
187 | struct target_ops current_target; | |
188 | ||
189 | /* Command list for target. */ | |
190 | ||
191 | static struct cmd_list_element *targetlist = NULL; | |
192 | ||
193 | /* Nonzero if we are debugging an attached outside process | |
194 | rather than an inferior. */ | |
195 | ||
196 | int attach_flag; | |
197 | ||
c906108c SS |
198 | /* Non-zero if we want to see trace of target level stuff. */ |
199 | ||
200 | static int targetdebug = 0; | |
920d2a44 AC |
201 | static void |
202 | show_targetdebug (struct ui_file *file, int from_tty, | |
203 | struct cmd_list_element *c, const char *value) | |
204 | { | |
205 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
206 | } | |
c906108c | 207 | |
a14ed312 | 208 | static void setup_target_debug (void); |
c906108c | 209 | |
4930751a C |
210 | DCACHE *target_dcache; |
211 | ||
c906108c SS |
212 | /* The user just typed 'target' without the name of a target. */ |
213 | ||
c906108c | 214 | static void |
fba45db2 | 215 | target_command (char *arg, int from_tty) |
c906108c SS |
216 | { |
217 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
218 | gdb_stdout); | |
219 | } | |
220 | ||
221 | /* Add a possible target architecture to the list. */ | |
222 | ||
223 | void | |
fba45db2 | 224 | add_target (struct target_ops *t) |
c906108c | 225 | { |
0088c768 | 226 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
227 | if (t->to_xfer_partial == NULL) |
228 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 229 | |
c906108c SS |
230 | if (!target_structs) |
231 | { | |
232 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
233 | target_structs = (struct target_ops **) xmalloc | |
234 | (target_struct_allocsize * sizeof (*target_structs)); | |
235 | } | |
236 | if (target_struct_size >= target_struct_allocsize) | |
237 | { | |
238 | target_struct_allocsize *= 2; | |
239 | target_structs = (struct target_ops **) | |
c5aa993b JM |
240 | xrealloc ((char *) target_structs, |
241 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
242 | } |
243 | target_structs[target_struct_size++] = t; | |
c906108c SS |
244 | |
245 | if (targetlist == NULL) | |
1bedd215 AC |
246 | add_prefix_cmd ("target", class_run, target_command, _("\ |
247 | Connect to a target machine or process.\n\ | |
c906108c SS |
248 | The first argument is the type or protocol of the target machine.\n\ |
249 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
250 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 251 | `help target ' followed by the protocol name."), |
c906108c SS |
252 | &targetlist, "target ", 0, &cmdlist); |
253 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
254 | } | |
255 | ||
256 | /* Stub functions */ | |
257 | ||
258 | void | |
fba45db2 | 259 | target_ignore (void) |
c906108c SS |
260 | { |
261 | } | |
262 | ||
11cf8741 JM |
263 | void |
264 | target_load (char *arg, int from_tty) | |
265 | { | |
4930751a | 266 | dcache_invalidate (target_dcache); |
11cf8741 JM |
267 | (*current_target.to_load) (arg, from_tty); |
268 | } | |
269 | ||
c906108c | 270 | static int |
fba45db2 KB |
271 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
272 | struct target_ops *t) | |
c906108c | 273 | { |
c5aa993b JM |
274 | errno = EIO; /* Can't read/write this location */ |
275 | return 0; /* No bytes handled */ | |
c906108c SS |
276 | } |
277 | ||
278 | static void | |
fba45db2 | 279 | tcomplain (void) |
c906108c | 280 | { |
8a3fe4f8 | 281 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
282 | current_target.to_shortname); |
283 | } | |
284 | ||
285 | void | |
fba45db2 | 286 | noprocess (void) |
c906108c | 287 | { |
8a3fe4f8 | 288 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
289 | } |
290 | ||
c906108c | 291 | static int |
fba45db2 | 292 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 293 | { |
c5aa993b | 294 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
295 | } |
296 | ||
392a587b | 297 | static void |
fba45db2 | 298 | nosupport_runtime (void) |
c906108c | 299 | { |
39f77062 | 300 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
301 | noprocess (); |
302 | else | |
8a3fe4f8 | 303 | error (_("No run-time support for this")); |
c906108c SS |
304 | } |
305 | ||
306 | ||
c906108c | 307 | static void |
fba45db2 | 308 | default_terminal_info (char *args, int from_tty) |
c906108c | 309 | { |
a3f17187 | 310 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
311 | } |
312 | ||
313 | /* This is the default target_create_inferior and target_attach function. | |
314 | If the current target is executing, it asks whether to kill it off. | |
315 | If this function returns without calling error(), it has killed off | |
316 | the target, and the operation should be attempted. */ | |
317 | ||
318 | static void | |
fba45db2 | 319 | kill_or_be_killed (int from_tty) |
c906108c SS |
320 | { |
321 | if (target_has_execution) | |
322 | { | |
a3f17187 | 323 | printf_unfiltered (_("You are already running a program:\n")); |
c906108c | 324 | target_files_info (); |
c5aa993b JM |
325 | if (query ("Kill it? ")) |
326 | { | |
327 | target_kill (); | |
328 | if (target_has_execution) | |
8a3fe4f8 | 329 | error (_("Killing the program did not help.")); |
c5aa993b JM |
330 | return; |
331 | } | |
332 | else | |
333 | { | |
8a3fe4f8 | 334 | error (_("Program not killed.")); |
c5aa993b | 335 | } |
c906108c | 336 | } |
c5aa993b | 337 | tcomplain (); |
c906108c SS |
338 | } |
339 | ||
340 | static void | |
fba45db2 | 341 | maybe_kill_then_attach (char *args, int from_tty) |
c906108c SS |
342 | { |
343 | kill_or_be_killed (from_tty); | |
344 | target_attach (args, from_tty); | |
345 | } | |
346 | ||
347 | static void | |
c27cda74 AC |
348 | maybe_kill_then_create_inferior (char *exec, char *args, char **env, |
349 | int from_tty) | |
c906108c SS |
350 | { |
351 | kill_or_be_killed (0); | |
c27cda74 | 352 | target_create_inferior (exec, args, env, from_tty); |
c906108c SS |
353 | } |
354 | ||
7998dfc3 AC |
355 | /* Go through the target stack from top to bottom, copying over zero |
356 | entries in current_target, then filling in still empty entries. In | |
357 | effect, we are doing class inheritance through the pushed target | |
358 | vectors. | |
359 | ||
360 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
361 | is currently implemented, is that it discards any knowledge of | |
362 | which target an inherited method originally belonged to. | |
363 | Consequently, new new target methods should instead explicitly and | |
364 | locally search the target stack for the target that can handle the | |
365 | request. */ | |
c906108c SS |
366 | |
367 | static void | |
7998dfc3 | 368 | update_current_target (void) |
c906108c | 369 | { |
7998dfc3 AC |
370 | struct target_ops *t; |
371 | ||
372 | /* First, reset curren'ts contents. */ | |
373 | memset (¤t_target, 0, sizeof (current_target)); | |
374 | ||
375 | #define INHERIT(FIELD, TARGET) \ | |
376 | if (!current_target.FIELD) \ | |
377 | current_target.FIELD = (TARGET)->FIELD | |
378 | ||
379 | for (t = target_stack; t; t = t->beneath) | |
380 | { | |
381 | INHERIT (to_shortname, t); | |
382 | INHERIT (to_longname, t); | |
383 | INHERIT (to_doc, t); | |
384 | INHERIT (to_open, t); | |
385 | INHERIT (to_close, t); | |
386 | INHERIT (to_attach, t); | |
387 | INHERIT (to_post_attach, t); | |
388 | INHERIT (to_detach, t); | |
597320e7 | 389 | /* Do not inherit to_disconnect. */ |
7998dfc3 AC |
390 | INHERIT (to_resume, t); |
391 | INHERIT (to_wait, t); | |
7998dfc3 AC |
392 | INHERIT (to_fetch_registers, t); |
393 | INHERIT (to_store_registers, t); | |
394 | INHERIT (to_prepare_to_store, t); | |
c8e73a31 | 395 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
396 | INHERIT (to_files_info, t); |
397 | INHERIT (to_insert_breakpoint, t); | |
398 | INHERIT (to_remove_breakpoint, t); | |
399 | INHERIT (to_can_use_hw_breakpoint, t); | |
400 | INHERIT (to_insert_hw_breakpoint, t); | |
401 | INHERIT (to_remove_hw_breakpoint, t); | |
402 | INHERIT (to_insert_watchpoint, t); | |
403 | INHERIT (to_remove_watchpoint, t); | |
404 | INHERIT (to_stopped_data_address, t); | |
405 | INHERIT (to_stopped_by_watchpoint, t); | |
406 | INHERIT (to_have_continuable_watchpoint, t); | |
e0d24f8d | 407 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
7998dfc3 AC |
408 | INHERIT (to_terminal_init, t); |
409 | INHERIT (to_terminal_inferior, t); | |
410 | INHERIT (to_terminal_ours_for_output, t); | |
411 | INHERIT (to_terminal_ours, t); | |
412 | INHERIT (to_terminal_save_ours, t); | |
413 | INHERIT (to_terminal_info, t); | |
414 | INHERIT (to_kill, t); | |
415 | INHERIT (to_load, t); | |
416 | INHERIT (to_lookup_symbol, t); | |
417 | INHERIT (to_create_inferior, t); | |
418 | INHERIT (to_post_startup_inferior, t); | |
419 | INHERIT (to_acknowledge_created_inferior, t); | |
420 | INHERIT (to_insert_fork_catchpoint, t); | |
421 | INHERIT (to_remove_fork_catchpoint, t); | |
422 | INHERIT (to_insert_vfork_catchpoint, t); | |
423 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 424 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
425 | INHERIT (to_insert_exec_catchpoint, t); |
426 | INHERIT (to_remove_exec_catchpoint, t); | |
427 | INHERIT (to_reported_exec_events_per_exec_call, t); | |
428 | INHERIT (to_has_exited, t); | |
429 | INHERIT (to_mourn_inferior, t); | |
430 | INHERIT (to_can_run, t); | |
431 | INHERIT (to_notice_signals, t); | |
432 | INHERIT (to_thread_alive, t); | |
433 | INHERIT (to_find_new_threads, t); | |
434 | INHERIT (to_pid_to_str, t); | |
435 | INHERIT (to_extra_thread_info, t); | |
436 | INHERIT (to_stop, t); | |
4b8a223f | 437 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 AC |
438 | INHERIT (to_rcmd, t); |
439 | INHERIT (to_enable_exception_callback, t); | |
440 | INHERIT (to_get_current_exception_event, t); | |
441 | INHERIT (to_pid_to_exec_file, t); | |
442 | INHERIT (to_stratum, t); | |
443 | INHERIT (to_has_all_memory, t); | |
444 | INHERIT (to_has_memory, t); | |
445 | INHERIT (to_has_stack, t); | |
446 | INHERIT (to_has_registers, t); | |
447 | INHERIT (to_has_execution, t); | |
448 | INHERIT (to_has_thread_control, t); | |
449 | INHERIT (to_sections, t); | |
450 | INHERIT (to_sections_end, t); | |
451 | INHERIT (to_can_async_p, t); | |
452 | INHERIT (to_is_async_p, t); | |
453 | INHERIT (to_async, t); | |
454 | INHERIT (to_async_mask_value, t); | |
455 | INHERIT (to_find_memory_regions, t); | |
456 | INHERIT (to_make_corefile_notes, t); | |
457 | INHERIT (to_get_thread_local_address, t); | |
458 | INHERIT (to_magic, t); | |
459 | } | |
460 | #undef INHERIT | |
461 | ||
462 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
463 | it. Some entries are defaulted to a method that print an error, |
464 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
465 | |
466 | #define de_fault(field, value) \ | |
7998dfc3 AC |
467 | if (!current_target.field) \ |
468 | current_target.field = value | |
0d06e24b JM |
469 | |
470 | de_fault (to_open, | |
471 | (void (*) (char *, int)) | |
472 | tcomplain); | |
473 | de_fault (to_close, | |
474 | (void (*) (int)) | |
475 | target_ignore); | |
476 | de_fault (to_attach, | |
477 | maybe_kill_then_attach); | |
478 | de_fault (to_post_attach, | |
479 | (void (*) (int)) | |
480 | target_ignore); | |
0d06e24b JM |
481 | de_fault (to_detach, |
482 | (void (*) (char *, int)) | |
483 | target_ignore); | |
0d06e24b | 484 | de_fault (to_resume, |
39f77062 | 485 | (void (*) (ptid_t, int, enum target_signal)) |
0d06e24b JM |
486 | noprocess); |
487 | de_fault (to_wait, | |
39f77062 | 488 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) |
0d06e24b | 489 | noprocess); |
0d06e24b JM |
490 | de_fault (to_fetch_registers, |
491 | (void (*) (int)) | |
492 | target_ignore); | |
493 | de_fault (to_store_registers, | |
494 | (void (*) (int)) | |
495 | noprocess); | |
496 | de_fault (to_prepare_to_store, | |
497 | (void (*) (void)) | |
498 | noprocess); | |
c8e73a31 | 499 | de_fault (deprecated_xfer_memory, |
1b0ba102 | 500 | (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *)) |
0d06e24b JM |
501 | nomemory); |
502 | de_fault (to_files_info, | |
503 | (void (*) (struct target_ops *)) | |
504 | target_ignore); | |
505 | de_fault (to_insert_breakpoint, | |
506 | memory_insert_breakpoint); | |
507 | de_fault (to_remove_breakpoint, | |
508 | memory_remove_breakpoint); | |
ccaa32c7 GS |
509 | de_fault (to_can_use_hw_breakpoint, |
510 | (int (*) (int, int, int)) | |
511 | return_zero); | |
512 | de_fault (to_insert_hw_breakpoint, | |
8181d85f | 513 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
514 | return_minus_one); |
515 | de_fault (to_remove_hw_breakpoint, | |
8181d85f | 516 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
517 | return_minus_one); |
518 | de_fault (to_insert_watchpoint, | |
519 | (int (*) (CORE_ADDR, int, int)) | |
520 | return_minus_one); | |
521 | de_fault (to_remove_watchpoint, | |
522 | (int (*) (CORE_ADDR, int, int)) | |
523 | return_minus_one); | |
524 | de_fault (to_stopped_by_watchpoint, | |
525 | (int (*) (void)) | |
526 | return_zero); | |
527 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 528 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 529 | return_zero); |
e0d24f8d WZ |
530 | de_fault (to_region_ok_for_hw_watchpoint, |
531 | default_region_ok_for_hw_watchpoint); | |
0d06e24b JM |
532 | de_fault (to_terminal_init, |
533 | (void (*) (void)) | |
534 | target_ignore); | |
535 | de_fault (to_terminal_inferior, | |
536 | (void (*) (void)) | |
537 | target_ignore); | |
538 | de_fault (to_terminal_ours_for_output, | |
539 | (void (*) (void)) | |
540 | target_ignore); | |
541 | de_fault (to_terminal_ours, | |
542 | (void (*) (void)) | |
543 | target_ignore); | |
a790ad35 SC |
544 | de_fault (to_terminal_save_ours, |
545 | (void (*) (void)) | |
546 | target_ignore); | |
0d06e24b JM |
547 | de_fault (to_terminal_info, |
548 | default_terminal_info); | |
549 | de_fault (to_kill, | |
550 | (void (*) (void)) | |
551 | noprocess); | |
552 | de_fault (to_load, | |
553 | (void (*) (char *, int)) | |
554 | tcomplain); | |
555 | de_fault (to_lookup_symbol, | |
556 | (int (*) (char *, CORE_ADDR *)) | |
557 | nosymbol); | |
558 | de_fault (to_create_inferior, | |
559 | maybe_kill_then_create_inferior); | |
560 | de_fault (to_post_startup_inferior, | |
39f77062 | 561 | (void (*) (ptid_t)) |
0d06e24b JM |
562 | target_ignore); |
563 | de_fault (to_acknowledge_created_inferior, | |
564 | (void (*) (int)) | |
565 | target_ignore); | |
0d06e24b | 566 | de_fault (to_insert_fork_catchpoint, |
fa113d1a | 567 | (void (*) (int)) |
0d06e24b JM |
568 | tcomplain); |
569 | de_fault (to_remove_fork_catchpoint, | |
570 | (int (*) (int)) | |
571 | tcomplain); | |
572 | de_fault (to_insert_vfork_catchpoint, | |
fa113d1a | 573 | (void (*) (int)) |
0d06e24b JM |
574 | tcomplain); |
575 | de_fault (to_remove_vfork_catchpoint, | |
576 | (int (*) (int)) | |
577 | tcomplain); | |
0d06e24b | 578 | de_fault (to_insert_exec_catchpoint, |
fa113d1a | 579 | (void (*) (int)) |
0d06e24b JM |
580 | tcomplain); |
581 | de_fault (to_remove_exec_catchpoint, | |
582 | (int (*) (int)) | |
583 | tcomplain); | |
0d06e24b JM |
584 | de_fault (to_reported_exec_events_per_exec_call, |
585 | (int (*) (void)) | |
586 | return_one); | |
0d06e24b JM |
587 | de_fault (to_has_exited, |
588 | (int (*) (int, int, int *)) | |
589 | return_zero); | |
590 | de_fault (to_mourn_inferior, | |
591 | (void (*) (void)) | |
592 | noprocess); | |
593 | de_fault (to_can_run, | |
594 | return_zero); | |
595 | de_fault (to_notice_signals, | |
39f77062 | 596 | (void (*) (ptid_t)) |
0d06e24b JM |
597 | target_ignore); |
598 | de_fault (to_thread_alive, | |
39f77062 | 599 | (int (*) (ptid_t)) |
0d06e24b JM |
600 | return_zero); |
601 | de_fault (to_find_new_threads, | |
602 | (void (*) (void)) | |
603 | target_ignore); | |
604 | de_fault (to_extra_thread_info, | |
605 | (char *(*) (struct thread_info *)) | |
606 | return_zero); | |
607 | de_fault (to_stop, | |
608 | (void (*) (void)) | |
609 | target_ignore); | |
4b8a223f | 610 | current_target.to_xfer_partial = default_xfer_partial; |
0d06e24b | 611 | de_fault (to_rcmd, |
d9fcf2fb | 612 | (void (*) (char *, struct ui_file *)) |
0d06e24b JM |
613 | tcomplain); |
614 | de_fault (to_enable_exception_callback, | |
615 | (struct symtab_and_line * (*) (enum exception_event_kind, int)) | |
616 | nosupport_runtime); | |
617 | de_fault (to_get_current_exception_event, | |
618 | (struct exception_event_record * (*) (void)) | |
619 | nosupport_runtime); | |
620 | de_fault (to_pid_to_exec_file, | |
621 | (char *(*) (int)) | |
622 | return_zero); | |
0d06e24b JM |
623 | de_fault (to_can_async_p, |
624 | (int (*) (void)) | |
625 | return_zero); | |
626 | de_fault (to_is_async_p, | |
627 | (int (*) (void)) | |
628 | return_zero); | |
629 | de_fault (to_async, | |
630 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
631 | tcomplain); | |
c906108c | 632 | #undef de_fault |
c906108c | 633 | |
7998dfc3 AC |
634 | /* Finally, position the target-stack beneath the squashed |
635 | "current_target". That way code looking for a non-inherited | |
636 | target method can quickly and simply find it. */ | |
637 | current_target.beneath = target_stack; | |
c906108c SS |
638 | } |
639 | ||
640 | /* Push a new target type into the stack of the existing target accessors, | |
641 | possibly superseding some of the existing accessors. | |
642 | ||
643 | Result is zero if the pushed target ended up on top of the stack, | |
644 | nonzero if at least one target is on top of it. | |
645 | ||
646 | Rather than allow an empty stack, we always have the dummy target at | |
647 | the bottom stratum, so we can call the function vectors without | |
648 | checking them. */ | |
649 | ||
650 | int | |
fba45db2 | 651 | push_target (struct target_ops *t) |
c906108c | 652 | { |
258b763a | 653 | struct target_ops **cur; |
c906108c SS |
654 | |
655 | /* Check magic number. If wrong, it probably means someone changed | |
656 | the struct definition, but not all the places that initialize one. */ | |
657 | if (t->to_magic != OPS_MAGIC) | |
658 | { | |
c5aa993b JM |
659 | fprintf_unfiltered (gdb_stderr, |
660 | "Magic number of %s target struct wrong\n", | |
661 | t->to_shortname); | |
e2e0b3e5 | 662 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
663 | } |
664 | ||
258b763a AC |
665 | /* Find the proper stratum to install this target in. */ |
666 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 667 | { |
258b763a | 668 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
669 | break; |
670 | } | |
671 | ||
258b763a | 672 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 673 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
674 | targets to CUR, and not just those at this stratum level. */ |
675 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
676 | { | |
677 | /* There's already something at this stratum level. Close it, | |
678 | and un-hook it from the stack. */ | |
679 | struct target_ops *tmp = (*cur); | |
680 | (*cur) = (*cur)->beneath; | |
681 | tmp->beneath = NULL; | |
f1c07ab0 | 682 | target_close (tmp, 0); |
258b763a | 683 | } |
c906108c SS |
684 | |
685 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
686 | t->beneath = (*cur); |
687 | (*cur) = t; | |
c906108c SS |
688 | |
689 | update_current_target (); | |
690 | ||
c906108c SS |
691 | if (targetdebug) |
692 | setup_target_debug (); | |
c906108c | 693 | |
258b763a AC |
694 | /* Not on top? */ |
695 | return (t != target_stack); | |
c906108c SS |
696 | } |
697 | ||
698 | /* Remove a target_ops vector from the stack, wherever it may be. | |
699 | Return how many times it was removed (0 or 1). */ | |
700 | ||
701 | int | |
fba45db2 | 702 | unpush_target (struct target_ops *t) |
c906108c | 703 | { |
258b763a AC |
704 | struct target_ops **cur; |
705 | struct target_ops *tmp; | |
c906108c | 706 | |
c906108c SS |
707 | /* Look for the specified target. Note that we assume that a target |
708 | can only occur once in the target stack. */ | |
709 | ||
258b763a AC |
710 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
711 | { | |
712 | if ((*cur) == t) | |
713 | break; | |
714 | } | |
c906108c | 715 | |
258b763a | 716 | if ((*cur) == NULL) |
c906108c SS |
717 | return 0; /* Didn't find target_ops, quit now */ |
718 | ||
5269965e AC |
719 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
720 | unconditional by moving it to before the above check that the | |
721 | target was in the target stack (something about "Change the way | |
722 | pushing and popping of targets work to support target overlays | |
723 | and inheritance"). This doesn't make much sense - only open | |
724 | targets should be closed. */ | |
725 | target_close (t, 0); | |
726 | ||
c906108c | 727 | /* Unchain the target */ |
258b763a AC |
728 | tmp = (*cur); |
729 | (*cur) = (*cur)->beneath; | |
730 | tmp->beneath = NULL; | |
c906108c SS |
731 | |
732 | update_current_target (); | |
c906108c SS |
733 | |
734 | return 1; | |
735 | } | |
736 | ||
737 | void | |
fba45db2 | 738 | pop_target (void) |
c906108c | 739 | { |
f1c07ab0 | 740 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 741 | if (unpush_target (target_stack) == 1) |
c906108c SS |
742 | return; |
743 | ||
c5aa993b JM |
744 | fprintf_unfiltered (gdb_stderr, |
745 | "pop_target couldn't find target %s\n", | |
746 | current_target.to_shortname); | |
e2e0b3e5 | 747 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
748 | } |
749 | ||
750 | #undef MIN | |
751 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
752 | ||
753 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
754 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
755 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
756 | is responsible for freeing it. Return the number of bytes successfully | |
757 | read. */ | |
758 | ||
759 | int | |
fba45db2 | 760 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
761 | { |
762 | int tlen, origlen, offset, i; | |
1b0ba102 | 763 | gdb_byte buf[4]; |
c906108c SS |
764 | int errcode = 0; |
765 | char *buffer; | |
766 | int buffer_allocated; | |
767 | char *bufptr; | |
768 | unsigned int nbytes_read = 0; | |
769 | ||
770 | /* Small for testing. */ | |
771 | buffer_allocated = 4; | |
772 | buffer = xmalloc (buffer_allocated); | |
773 | bufptr = buffer; | |
774 | ||
775 | origlen = len; | |
776 | ||
777 | while (len > 0) | |
778 | { | |
779 | tlen = MIN (len, 4 - (memaddr & 3)); | |
780 | offset = memaddr & 3; | |
781 | ||
1b0ba102 | 782 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
783 | if (errcode != 0) |
784 | { | |
785 | /* The transfer request might have crossed the boundary to an | |
786 | unallocated region of memory. Retry the transfer, requesting | |
787 | a single byte. */ | |
788 | tlen = 1; | |
789 | offset = 0; | |
b8eb5af0 | 790 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
791 | if (errcode != 0) |
792 | goto done; | |
793 | } | |
794 | ||
795 | if (bufptr - buffer + tlen > buffer_allocated) | |
796 | { | |
797 | unsigned int bytes; | |
798 | bytes = bufptr - buffer; | |
799 | buffer_allocated *= 2; | |
800 | buffer = xrealloc (buffer, buffer_allocated); | |
801 | bufptr = buffer + bytes; | |
802 | } | |
803 | ||
804 | for (i = 0; i < tlen; i++) | |
805 | { | |
806 | *bufptr++ = buf[i + offset]; | |
807 | if (buf[i + offset] == '\000') | |
808 | { | |
809 | nbytes_read += i + 1; | |
810 | goto done; | |
811 | } | |
812 | } | |
813 | ||
814 | memaddr += tlen; | |
815 | len -= tlen; | |
816 | nbytes_read += tlen; | |
817 | } | |
c5aa993b | 818 | done: |
c906108c SS |
819 | if (errnop != NULL) |
820 | *errnop = errcode; | |
821 | if (string != NULL) | |
822 | *string = buffer; | |
823 | return nbytes_read; | |
824 | } | |
825 | ||
8db32d44 AC |
826 | /* Find a section containing ADDR. */ |
827 | struct section_table * | |
828 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
829 | { | |
830 | struct section_table *secp; | |
831 | for (secp = target->to_sections; | |
832 | secp < target->to_sections_end; | |
833 | secp++) | |
834 | { | |
835 | if (addr >= secp->addr && addr < secp->endaddr) | |
836 | return secp; | |
837 | } | |
838 | return NULL; | |
839 | } | |
840 | ||
0779438d AC |
841 | /* Return non-zero when the target vector has supplied an xfer_partial |
842 | method and it, rather than xfer_memory, should be used. */ | |
843 | static int | |
844 | target_xfer_partial_p (void) | |
845 | { | |
846 | return (target_stack != NULL | |
847 | && target_stack->to_xfer_partial != default_xfer_partial); | |
848 | } | |
849 | ||
27394598 AC |
850 | static LONGEST |
851 | target_xfer_partial (struct target_ops *ops, | |
852 | enum target_object object, const char *annex, | |
853 | void *readbuf, const void *writebuf, | |
854 | ULONGEST offset, LONGEST len) | |
855 | { | |
856 | LONGEST retval; | |
857 | ||
858 | gdb_assert (ops->to_xfer_partial != NULL); | |
859 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, writebuf, | |
860 | offset, len); | |
861 | if (targetdebug) | |
862 | { | |
863 | const unsigned char *myaddr = NULL; | |
864 | ||
865 | fprintf_unfiltered (gdb_stdlog, | |
866 | "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s", | |
867 | ops->to_shortname, | |
868 | (int) object, | |
869 | (annex ? annex : "(null)"), | |
870 | (long) readbuf, (long) writebuf, | |
871 | paddr_nz (offset), paddr_d (len), paddr_d (retval)); | |
872 | ||
873 | if (readbuf) | |
874 | myaddr = readbuf; | |
875 | if (writebuf) | |
876 | myaddr = writebuf; | |
877 | if (retval > 0 && myaddr != NULL) | |
878 | { | |
879 | int i; | |
880 | ||
881 | fputs_unfiltered (", bytes =", gdb_stdlog); | |
882 | for (i = 0; i < retval; i++) | |
883 | { | |
884 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
885 | { | |
886 | if (targetdebug < 2 && i > 0) | |
887 | { | |
888 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
889 | break; | |
890 | } | |
891 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
892 | } | |
893 | ||
894 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); | |
895 | } | |
896 | } | |
897 | ||
898 | fputc_unfiltered ('\n', gdb_stdlog); | |
899 | } | |
900 | return retval; | |
901 | } | |
902 | ||
0779438d AC |
903 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
904 | inferior's KIND:ANNEX space and GDB's READBUF/WRITEBUF buffer. If | |
905 | the transfer succeeds, return zero, otherwize the host ERRNO is | |
906 | returned. | |
907 | ||
908 | The inferior is formed from several layers. In the case of | |
909 | corefiles, inf-corefile is layered above inf-exec and a request for | |
910 | text (corefiles do not include text pages) will be first sent to | |
911 | the core-stratum, fail, and then sent to the object-file where it | |
912 | will succeed. | |
913 | ||
914 | NOTE: cagney/2004-09-30: | |
915 | ||
916 | The old code tried to use four separate mechanisms for mapping an | |
917 | object:offset:len tuple onto an inferior and its address space: the | |
918 | target stack; the inferior's TO_SECTIONS; solib's SO_LIST; | |
919 | overlays. | |
920 | ||
921 | This is stupid. | |
922 | ||
923 | The code below is instead using a single mechanism (currently | |
924 | strata). If that mechanism proves insufficient then re-factor it | |
925 | implementing another singluar mechanism (for instance, a generic | |
926 | object:annex onto inferior:object:annex say). */ | |
927 | ||
cb85a953 | 928 | static LONGEST |
0779438d | 929 | xfer_using_stratum (enum target_object object, const char *annex, |
cb85a953 | 930 | ULONGEST offset, LONGEST len, void *readbuf, |
0779438d AC |
931 | const void *writebuf) |
932 | { | |
933 | LONGEST xfered; | |
934 | struct target_ops *target; | |
935 | ||
936 | /* Always successful. */ | |
937 | if (len == 0) | |
938 | return 0; | |
939 | /* Never successful. */ | |
940 | if (target_stack == NULL) | |
941 | return EIO; | |
942 | ||
943 | target = target_stack; | |
944 | while (1) | |
945 | { | |
27394598 | 946 | xfered = target_xfer_partial (target, object, annex, |
cb85a953 | 947 | readbuf, writebuf, offset, len); |
0779438d AC |
948 | if (xfered > 0) |
949 | { | |
950 | /* The partial xfer succeeded, update the counts, check that | |
951 | the xfer hasn't finished and if it hasn't set things up | |
952 | for the next round. */ | |
953 | len -= xfered; | |
954 | if (len <= 0) | |
955 | return 0; | |
cb85a953 AC |
956 | offset += xfered; |
957 | if (readbuf != NULL) | |
fc1a4b47 | 958 | readbuf = (gdb_byte *) readbuf + xfered; |
cb85a953 | 959 | if (writebuf != NULL) |
fc1a4b47 | 960 | writebuf = (gdb_byte *) writebuf + xfered; |
0779438d AC |
961 | target = target_stack; |
962 | } | |
963 | else if (xfered < 0) | |
964 | { | |
965 | /* Something totally screwed up, abandon the attempt to | |
966 | xfer. */ | |
967 | if (errno) | |
968 | return errno; | |
969 | else | |
970 | return EIO; | |
971 | } | |
972 | else | |
973 | { | |
974 | /* This "stratum" didn't work, try the next one down. */ | |
975 | target = target->beneath; | |
976 | if (target == NULL) | |
977 | return EIO; | |
978 | } | |
979 | } | |
980 | } | |
981 | ||
c906108c SS |
982 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
983 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
984 | if any error occurs. | |
985 | ||
986 | If an error occurs, no guarantee is made about the contents of the data at | |
987 | MYADDR. In particular, the caller should not depend upon partial reads | |
988 | filling the buffer with good data. There is no way for the caller to know | |
989 | how much good data might have been transfered anyway. Callers that can | |
990 | deal with partial reads should call target_read_memory_partial. */ | |
991 | ||
992 | int | |
fc1a4b47 | 993 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 994 | { |
0779438d AC |
995 | if (target_xfer_partial_p ()) |
996 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
997 | memaddr, len, myaddr, NULL); | |
998 | else | |
999 | return target_xfer_memory (memaddr, myaddr, len, 0); | |
c906108c SS |
1000 | } |
1001 | ||
c906108c | 1002 | int |
fc1a4b47 | 1003 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1004 | { |
fc1a4b47 | 1005 | gdb_byte *bytes = alloca (len); |
10e2d419 | 1006 | memcpy (bytes, myaddr, len); |
0779438d AC |
1007 | if (target_xfer_partial_p ()) |
1008 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
10e2d419 | 1009 | memaddr, len, NULL, bytes); |
0779438d | 1010 | else |
10e2d419 | 1011 | return target_xfer_memory (memaddr, bytes, len, 1); |
c906108c | 1012 | } |
c5aa993b | 1013 | |
4aa7a7f5 JJ |
1014 | #ifndef target_stopped_data_address_p |
1015 | int | |
1016 | target_stopped_data_address_p (struct target_ops *target) | |
1017 | { | |
aa869812 AC |
1018 | if (target->to_stopped_data_address |
1019 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero) | |
4aa7a7f5 | 1020 | return 0; |
aa869812 AC |
1021 | if (target->to_stopped_data_address == debug_to_stopped_data_address |
1022 | && (debug_target.to_stopped_data_address | |
1023 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero)) | |
1024 | return 0; | |
1025 | return 1; | |
4aa7a7f5 JJ |
1026 | } |
1027 | #endif | |
1028 | ||
3a11626d | 1029 | static int trust_readonly = 0; |
920d2a44 AC |
1030 | static void |
1031 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1032 | struct cmd_list_element *c, const char *value) | |
1033 | { | |
1034 | fprintf_filtered (file, _("\ | |
1035 | Mode for reading from readonly sections is %s.\n"), | |
1036 | value); | |
1037 | } | |
3a11626d | 1038 | |
67e0617e C |
1039 | /* Move memory to or from the targets. The top target gets priority; |
1040 | if it cannot handle it, it is offered to the next one down, etc. | |
c906108c | 1041 | |
67e0617e | 1042 | Result is -1 on error, or the number of bytes transfered. */ |
c906108c | 1043 | |
4930751a | 1044 | int |
1b0ba102 | 1045 | do_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write, |
29e57380 | 1046 | struct mem_attrib *attrib) |
c906108c | 1047 | { |
c906108c | 1048 | int res; |
4930751a | 1049 | int done = 0; |
c906108c | 1050 | struct target_ops *t; |
c906108c SS |
1051 | |
1052 | /* Zero length requests are ok and require no work. */ | |
1053 | if (len == 0) | |
1054 | return 0; | |
1055 | ||
c8e73a31 AC |
1056 | /* deprecated_xfer_memory is not guaranteed to set errno, even when |
1057 | it returns 0. */ | |
c906108c SS |
1058 | errno = 0; |
1059 | ||
3a11626d MS |
1060 | if (!write && trust_readonly) |
1061 | { | |
8db32d44 | 1062 | struct section_table *secp; |
2ceb85d0 BE |
1063 | /* User-settable option, "trust-readonly-sections". If true, |
1064 | then memory from any SEC_READONLY bfd section may be read | |
8db32d44 AC |
1065 | directly from the bfd file. */ |
1066 | secp = target_section_by_addr (¤t_target, memaddr); | |
1067 | if (secp != NULL | |
1068 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1069 | & SEC_READONLY)) | |
1070 | return xfer_memory (memaddr, myaddr, len, 0, attrib, ¤t_target); | |
3a11626d MS |
1071 | } |
1072 | ||
67e0617e | 1073 | /* The quick case is that the top target can handle the transfer. */ |
c8e73a31 | 1074 | res = current_target.deprecated_xfer_memory |
29e57380 | 1075 | (memaddr, myaddr, len, write, attrib, ¤t_target); |
c906108c | 1076 | |
67e0617e C |
1077 | /* If res <= 0 then we call it again in the loop. Ah well. */ |
1078 | if (res <= 0) | |
c906108c | 1079 | { |
258b763a | 1080 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1081 | { |
c906108c SS |
1082 | if (!t->to_has_memory) |
1083 | continue; | |
1084 | ||
c8e73a31 | 1085 | res = t->deprecated_xfer_memory (memaddr, myaddr, len, write, attrib, t); |
c906108c SS |
1086 | if (res > 0) |
1087 | break; /* Handled all or part of xfer */ | |
1088 | if (t->to_has_all_memory) | |
1089 | break; | |
1090 | } | |
1091 | ||
4930751a | 1092 | if (res <= 0) |
67e0617e | 1093 | return -1; |
4930751a | 1094 | } |
67e0617e C |
1095 | |
1096 | return res; | |
4930751a C |
1097 | } |
1098 | ||
67e0617e C |
1099 | |
1100 | /* Perform a memory transfer. Iterate until the entire region has | |
1101 | been transfered. | |
1102 | ||
1103 | Result is 0 or errno value. */ | |
1104 | ||
4930751a | 1105 | static int |
1b0ba102 | 1106 | target_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write) |
4930751a C |
1107 | { |
1108 | int res; | |
29e57380 C |
1109 | int reg_len; |
1110 | struct mem_region *region; | |
4930751a C |
1111 | |
1112 | /* Zero length requests are ok and require no work. */ | |
1113 | if (len == 0) | |
1114 | { | |
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | while (len > 0) | |
1119 | { | |
29e57380 C |
1120 | region = lookup_mem_region(memaddr); |
1121 | if (memaddr + len < region->hi) | |
1122 | reg_len = len; | |
1123 | else | |
1124 | reg_len = region->hi - memaddr; | |
1125 | ||
1126 | switch (region->attrib.mode) | |
c906108c | 1127 | { |
29e57380 C |
1128 | case MEM_RO: |
1129 | if (write) | |
1130 | return EIO; | |
1131 | break; | |
1132 | ||
1133 | case MEM_WO: | |
c906108c | 1134 | if (!write) |
c906108c | 1135 | return EIO; |
29e57380 | 1136 | break; |
c906108c | 1137 | } |
4930751a | 1138 | |
29e57380 C |
1139 | while (reg_len > 0) |
1140 | { | |
1141 | if (region->attrib.cache) | |
8add0441 | 1142 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, |
1b0ba102 | 1143 | reg_len, write); |
29e57380 | 1144 | else |
8add0441 | 1145 | res = do_xfer_memory (memaddr, myaddr, reg_len, write, |
29e57380 C |
1146 | ®ion->attrib); |
1147 | ||
1148 | if (res <= 0) | |
1149 | { | |
1150 | /* If this address is for nonexistent memory, read zeros | |
1151 | if reading, or do nothing if writing. Return | |
1152 | error. */ | |
1153 | if (!write) | |
1154 | memset (myaddr, 0, len); | |
1155 | if (errno == 0) | |
1156 | return EIO; | |
1157 | else | |
1158 | return errno; | |
1159 | } | |
1160 | ||
1161 | memaddr += res; | |
1162 | myaddr += res; | |
1163 | len -= res; | |
1164 | reg_len -= res; | |
1165 | } | |
c906108c | 1166 | } |
4930751a | 1167 | |
c906108c SS |
1168 | return 0; /* We managed to cover it all somehow. */ |
1169 | } | |
1170 | ||
1171 | ||
67e0617e C |
1172 | /* Perform a partial memory transfer. |
1173 | ||
12c7def6 JB |
1174 | If we succeed, set *ERR to zero and return the number of bytes transferred. |
1175 | If we fail, set *ERR to a non-zero errno value, and return -1. */ | |
917317f4 JM |
1176 | |
1177 | static int | |
f6519ebc | 1178 | target_xfer_memory_partial (CORE_ADDR memaddr, gdb_byte *myaddr, int len, |
917317f4 JM |
1179 | int write_p, int *err) |
1180 | { | |
1181 | int res; | |
29e57380 C |
1182 | int reg_len; |
1183 | struct mem_region *region; | |
917317f4 JM |
1184 | |
1185 | /* Zero length requests are ok and require no work. */ | |
1186 | if (len == 0) | |
1187 | { | |
1188 | *err = 0; | |
1189 | return 0; | |
1190 | } | |
1191 | ||
29e57380 C |
1192 | region = lookup_mem_region(memaddr); |
1193 | if (memaddr + len < region->hi) | |
1194 | reg_len = len; | |
1195 | else | |
1196 | reg_len = region->hi - memaddr; | |
1197 | ||
1198 | switch (region->attrib.mode) | |
1199 | { | |
1200 | case MEM_RO: | |
1201 | if (write_p) | |
1202 | { | |
1203 | *err = EIO; | |
873406a6 | 1204 | return -1; |
29e57380 C |
1205 | } |
1206 | break; | |
1207 | ||
1208 | case MEM_WO: | |
1209 | if (write_p) | |
1210 | { | |
1211 | *err = EIO; | |
873406a6 | 1212 | return -1; |
29e57380 C |
1213 | } |
1214 | break; | |
1215 | } | |
1216 | ||
1217 | if (region->attrib.cache) | |
1218 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, | |
1219 | reg_len, write_p); | |
1220 | else | |
1221 | res = do_xfer_memory (memaddr, myaddr, reg_len, write_p, | |
1222 | ®ion->attrib); | |
1223 | ||
4930751a | 1224 | if (res <= 0) |
917317f4 | 1225 | { |
4930751a C |
1226 | if (errno != 0) |
1227 | *err = errno; | |
1228 | else | |
1229 | *err = EIO; | |
917317f4 | 1230 | |
4930751a | 1231 | return -1; |
917317f4 JM |
1232 | } |
1233 | ||
4930751a | 1234 | *err = 0; |
67e0617e | 1235 | return res; |
917317f4 JM |
1236 | } |
1237 | ||
1238 | int | |
f6519ebc MK |
1239 | target_read_memory_partial (CORE_ADDR memaddr, gdb_byte *buf, |
1240 | int len, int *err) | |
917317f4 | 1241 | { |
0779438d | 1242 | if (target_xfer_partial_p ()) |
f90221d3 DJ |
1243 | { |
1244 | int retval; | |
1245 | ||
1246 | retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, | |
1247 | NULL, buf, NULL, memaddr, len); | |
1248 | ||
1249 | if (retval <= 0) | |
1250 | { | |
1251 | if (errno) | |
1252 | *err = errno; | |
1253 | else | |
1254 | *err = EIO; | |
1255 | return -1; | |
1256 | } | |
1257 | else | |
1258 | { | |
1259 | *err = 0; | |
1260 | return retval; | |
1261 | } | |
1262 | } | |
0779438d AC |
1263 | else |
1264 | return target_xfer_memory_partial (memaddr, buf, len, 0, err); | |
917317f4 JM |
1265 | } |
1266 | ||
1267 | int | |
f6519ebc MK |
1268 | target_write_memory_partial (CORE_ADDR memaddr, gdb_byte *buf, |
1269 | int len, int *err) | |
917317f4 | 1270 | { |
0779438d | 1271 | if (target_xfer_partial_p ()) |
f90221d3 DJ |
1272 | { |
1273 | int retval; | |
1274 | ||
1275 | retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, | |
1276 | NULL, NULL, buf, memaddr, len); | |
1277 | ||
1278 | if (retval <= 0) | |
1279 | { | |
1280 | if (errno) | |
1281 | *err = errno; | |
1282 | else | |
1283 | *err = EIO; | |
1284 | return -1; | |
1285 | } | |
1286 | else | |
1287 | { | |
1288 | *err = 0; | |
1289 | return retval; | |
1290 | } | |
1291 | } | |
0779438d AC |
1292 | else |
1293 | return target_xfer_memory_partial (memaddr, buf, len, 1, err); | |
917317f4 JM |
1294 | } |
1295 | ||
1e3ff5ad AC |
1296 | /* More generic transfers. */ |
1297 | ||
0088c768 | 1298 | static LONGEST |
8aa91c1e | 1299 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
1b0ba102 AC |
1300 | const char *annex, gdb_byte *readbuf, |
1301 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
0088c768 AC |
1302 | { |
1303 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1304 | && ops->deprecated_xfer_memory != NULL) |
1305 | /* If available, fall back to the target's | |
1306 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1307 | { |
4b8a223f | 1308 | int xfered = -1; |
0088c768 | 1309 | errno = 0; |
4b8a223f AC |
1310 | if (writebuf != NULL) |
1311 | { | |
1312 | void *buffer = xmalloc (len); | |
1313 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1314 | memcpy (buffer, writebuf, len); | |
c8e73a31 AC |
1315 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1316 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1317 | do_cleanups (cleanup); |
1318 | } | |
1319 | if (readbuf != NULL) | |
c8e73a31 AC |
1320 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, 0/*read*/, |
1321 | NULL, ops); | |
0088c768 AC |
1322 | if (xfered > 0) |
1323 | return xfered; | |
1324 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1325 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1326 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1327 | return 0; |
1328 | else | |
1329 | return -1; | |
1330 | } | |
1331 | else if (ops->beneath != NULL) | |
27394598 AC |
1332 | return target_xfer_partial (ops->beneath, object, annex, |
1333 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1334 | else |
1335 | return -1; | |
1336 | } | |
1337 | ||
1338 | /* Target vector read/write partial wrapper functions. | |
1339 | ||
1340 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1341 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1342 | easier. */ | |
1343 | ||
1e3ff5ad AC |
1344 | LONGEST |
1345 | target_read_partial (struct target_ops *ops, | |
1346 | enum target_object object, | |
1b0ba102 | 1347 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1348 | ULONGEST offset, LONGEST len) |
1349 | { | |
27394598 | 1350 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1351 | } |
1352 | ||
1353 | LONGEST | |
1354 | target_write_partial (struct target_ops *ops, | |
1355 | enum target_object object, | |
1b0ba102 | 1356 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1357 | ULONGEST offset, LONGEST len) |
1358 | { | |
27394598 | 1359 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1360 | } |
1361 | ||
1362 | /* Wrappers to perform the full transfer. */ | |
1363 | LONGEST | |
1364 | target_read (struct target_ops *ops, | |
1365 | enum target_object object, | |
1b0ba102 | 1366 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1367 | ULONGEST offset, LONGEST len) |
1368 | { | |
1369 | LONGEST xfered = 0; | |
1370 | while (xfered < len) | |
1371 | { | |
0088c768 | 1372 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 1373 | (gdb_byte *) buf + xfered, |
0088c768 | 1374 | offset + xfered, len - xfered); |
1e3ff5ad | 1375 | /* Call an observer, notifying them of the xfer progress? */ |
0088c768 AC |
1376 | if (xfer <= 0) |
1377 | /* Call memory_error? */ | |
1378 | return -1; | |
1e3ff5ad AC |
1379 | xfered += xfer; |
1380 | QUIT; | |
1381 | } | |
1382 | return len; | |
1383 | } | |
1384 | ||
1385 | LONGEST | |
1386 | target_write (struct target_ops *ops, | |
1387 | enum target_object object, | |
1b0ba102 | 1388 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1389 | ULONGEST offset, LONGEST len) |
1390 | { | |
1391 | LONGEST xfered = 0; | |
1392 | while (xfered < len) | |
1393 | { | |
1394 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 1395 | (gdb_byte *) buf + xfered, |
1e3ff5ad AC |
1396 | offset + xfered, len - xfered); |
1397 | /* Call an observer, notifying them of the xfer progress? */ | |
0088c768 AC |
1398 | if (xfer <= 0) |
1399 | /* Call memory_error? */ | |
1400 | return -1; | |
1e3ff5ad AC |
1401 | xfered += xfer; |
1402 | QUIT; | |
1403 | } | |
1404 | return len; | |
1405 | } | |
1406 | ||
b6591e8b AC |
1407 | /* Memory transfer methods. */ |
1408 | ||
1409 | void | |
1b0ba102 | 1410 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1411 | LONGEST len) |
1412 | { | |
1413 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1414 | != len) | |
1415 | memory_error (EIO, addr); | |
1416 | } | |
1417 | ||
1418 | ULONGEST | |
1419 | get_target_memory_unsigned (struct target_ops *ops, | |
1420 | CORE_ADDR addr, int len) | |
1421 | { | |
f6519ebc | 1422 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1423 | |
1424 | gdb_assert (len <= sizeof (buf)); | |
1425 | get_target_memory (ops, addr, buf, len); | |
1426 | return extract_unsigned_integer (buf, len); | |
1427 | } | |
1428 | ||
c906108c | 1429 | static void |
fba45db2 | 1430 | target_info (char *args, int from_tty) |
c906108c SS |
1431 | { |
1432 | struct target_ops *t; | |
c906108c | 1433 | int has_all_mem = 0; |
c5aa993b | 1434 | |
c906108c | 1435 | if (symfile_objfile != NULL) |
a3f17187 | 1436 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 1437 | |
258b763a | 1438 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1439 | { |
c906108c SS |
1440 | if (!t->to_has_memory) |
1441 | continue; | |
1442 | ||
c5aa993b | 1443 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1444 | continue; |
1445 | if (has_all_mem) | |
a3f17187 | 1446 | printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n")); |
c5aa993b JM |
1447 | printf_unfiltered ("%s:\n", t->to_longname); |
1448 | (t->to_files_info) (t); | |
c906108c SS |
1449 | has_all_mem = t->to_has_all_memory; |
1450 | } | |
1451 | } | |
1452 | ||
1453 | /* This is to be called by the open routine before it does | |
1454 | anything. */ | |
1455 | ||
1456 | void | |
fba45db2 | 1457 | target_preopen (int from_tty) |
c906108c | 1458 | { |
c5aa993b | 1459 | dont_repeat (); |
c906108c SS |
1460 | |
1461 | if (target_has_execution) | |
c5aa993b | 1462 | { |
adf40b2e | 1463 | if (!from_tty |
e2e0b3e5 | 1464 | || query (_("A program is being debugged already. Kill it? "))) |
c5aa993b | 1465 | target_kill (); |
c906108c | 1466 | else |
8a3fe4f8 | 1467 | error (_("Program not killed.")); |
c906108c SS |
1468 | } |
1469 | ||
1470 | /* Calling target_kill may remove the target from the stack. But if | |
1471 | it doesn't (which seems like a win for UDI), remove it now. */ | |
1472 | ||
1473 | if (target_has_execution) | |
1474 | pop_target (); | |
1475 | } | |
1476 | ||
1477 | /* Detach a target after doing deferred register stores. */ | |
1478 | ||
1479 | void | |
fba45db2 | 1480 | target_detach (char *args, int from_tty) |
c906108c | 1481 | { |
c906108c SS |
1482 | (current_target.to_detach) (args, from_tty); |
1483 | } | |
1484 | ||
6ad8ae5c DJ |
1485 | void |
1486 | target_disconnect (char *args, int from_tty) | |
1487 | { | |
597320e7 DJ |
1488 | struct target_ops *t; |
1489 | ||
1490 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1491 | if (t->to_disconnect != NULL) | |
1492 | { | |
1493 | if (targetdebug) | |
1494 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1495 | args, from_tty); | |
1496 | t->to_disconnect (t, args, from_tty); | |
1497 | return; | |
1498 | } | |
1499 | ||
1500 | tcomplain (); | |
6ad8ae5c DJ |
1501 | } |
1502 | ||
ed9a39eb JM |
1503 | int |
1504 | target_async_mask (int mask) | |
1505 | { | |
1506 | int saved_async_masked_status = target_async_mask_value; | |
1507 | target_async_mask_value = mask; | |
1508 | return saved_async_masked_status; | |
1509 | } | |
1510 | ||
ee057212 DJ |
1511 | /* Look through the list of possible targets for a target that can |
1512 | follow forks. */ | |
1513 | ||
1514 | int | |
1515 | target_follow_fork (int follow_child) | |
1516 | { | |
1517 | struct target_ops *t; | |
1518 | ||
1519 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1520 | { | |
1521 | if (t->to_follow_fork != NULL) | |
1522 | { | |
1523 | int retval = t->to_follow_fork (t, follow_child); | |
1524 | if (targetdebug) | |
1525 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
1526 | follow_child, retval); | |
1527 | return retval; | |
1528 | } | |
1529 | } | |
1530 | ||
1531 | /* Some target returned a fork event, but did not know how to follow it. */ | |
1532 | internal_error (__FILE__, __LINE__, | |
1533 | "could not find a target to follow fork"); | |
1534 | } | |
1535 | ||
c906108c SS |
1536 | /* Look through the list of possible targets for a target that can |
1537 | execute a run or attach command without any other data. This is | |
1538 | used to locate the default process stratum. | |
1539 | ||
1540 | Result is always valid (error() is called for errors). */ | |
1541 | ||
1542 | static struct target_ops * | |
fba45db2 | 1543 | find_default_run_target (char *do_mesg) |
c906108c SS |
1544 | { |
1545 | struct target_ops **t; | |
1546 | struct target_ops *runable = NULL; | |
1547 | int count; | |
1548 | ||
1549 | count = 0; | |
1550 | ||
1551 | for (t = target_structs; t < target_structs + target_struct_size; | |
1552 | ++t) | |
1553 | { | |
c5aa993b | 1554 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
1555 | { |
1556 | runable = *t; | |
1557 | ++count; | |
1558 | } | |
1559 | } | |
1560 | ||
1561 | if (count != 1) | |
8a3fe4f8 | 1562 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); |
c906108c SS |
1563 | |
1564 | return runable; | |
1565 | } | |
1566 | ||
1567 | void | |
fba45db2 | 1568 | find_default_attach (char *args, int from_tty) |
c906108c SS |
1569 | { |
1570 | struct target_ops *t; | |
1571 | ||
c5aa993b | 1572 | t = find_default_run_target ("attach"); |
c906108c SS |
1573 | (t->to_attach) (args, from_tty); |
1574 | return; | |
1575 | } | |
1576 | ||
c906108c | 1577 | void |
c27cda74 AC |
1578 | find_default_create_inferior (char *exec_file, char *allargs, char **env, |
1579 | int from_tty) | |
c906108c SS |
1580 | { |
1581 | struct target_ops *t; | |
1582 | ||
c5aa993b | 1583 | t = find_default_run_target ("run"); |
c27cda74 | 1584 | (t->to_create_inferior) (exec_file, allargs, env, from_tty); |
c906108c SS |
1585 | return; |
1586 | } | |
1587 | ||
e0d24f8d WZ |
1588 | static int |
1589 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
1590 | { | |
2a3cdf79 | 1591 | return (len <= TYPE_LENGTH (builtin_type_void_data_ptr)); |
ccaa32c7 GS |
1592 | } |
1593 | ||
c906108c | 1594 | static int |
fba45db2 | 1595 | return_zero (void) |
c906108c SS |
1596 | { |
1597 | return 0; | |
1598 | } | |
1599 | ||
1600 | static int | |
fba45db2 | 1601 | return_one (void) |
c906108c SS |
1602 | { |
1603 | return 1; | |
1604 | } | |
1605 | ||
ccaa32c7 GS |
1606 | static int |
1607 | return_minus_one (void) | |
1608 | { | |
1609 | return -1; | |
1610 | } | |
1611 | ||
6426a772 JM |
1612 | /* |
1613 | * Resize the to_sections pointer. Also make sure that anyone that | |
1614 | * was holding on to an old value of it gets updated. | |
1615 | * Returns the old size. | |
1616 | */ | |
1617 | ||
1618 | int | |
1619 | target_resize_to_sections (struct target_ops *target, int num_added) | |
1620 | { | |
1621 | struct target_ops **t; | |
1622 | struct section_table *old_value; | |
1623 | int old_count; | |
1624 | ||
1625 | old_value = target->to_sections; | |
1626 | ||
1627 | if (target->to_sections) | |
1628 | { | |
1629 | old_count = target->to_sections_end - target->to_sections; | |
1630 | target->to_sections = (struct section_table *) | |
1631 | xrealloc ((char *) target->to_sections, | |
1632 | (sizeof (struct section_table)) * (num_added + old_count)); | |
1633 | } | |
1634 | else | |
1635 | { | |
1636 | old_count = 0; | |
1637 | target->to_sections = (struct section_table *) | |
1638 | xmalloc ((sizeof (struct section_table)) * num_added); | |
1639 | } | |
1640 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
1641 | ||
1642 | /* Check to see if anyone else was pointing to this structure. | |
1643 | If old_value was null, then no one was. */ | |
1644 | ||
1645 | if (old_value) | |
1646 | { | |
1647 | for (t = target_structs; t < target_structs + target_struct_size; | |
1648 | ++t) | |
1649 | { | |
1650 | if ((*t)->to_sections == old_value) | |
1651 | { | |
1652 | (*t)->to_sections = target->to_sections; | |
1653 | (*t)->to_sections_end = target->to_sections_end; | |
1654 | } | |
1655 | } | |
e354df01 NW |
1656 | /* There is a flattened view of the target stack in current_target, |
1657 | so its to_sections pointer might also need updating. */ | |
1658 | if (current_target.to_sections == old_value) | |
1659 | { | |
1660 | current_target.to_sections = target->to_sections; | |
1661 | current_target.to_sections_end = target->to_sections_end; | |
1662 | } | |
6426a772 JM |
1663 | } |
1664 | ||
1665 | return old_count; | |
1666 | ||
1667 | } | |
1668 | ||
07cd4b97 JB |
1669 | /* Remove all target sections taken from ABFD. |
1670 | ||
1671 | Scan the current target stack for targets whose section tables | |
1672 | refer to sections from BFD, and remove those sections. We use this | |
1673 | when we notice that the inferior has unloaded a shared object, for | |
1674 | example. */ | |
1675 | void | |
1676 | remove_target_sections (bfd *abfd) | |
1677 | { | |
1678 | struct target_ops **t; | |
1679 | ||
1680 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
1681 | { | |
1682 | struct section_table *src, *dest; | |
1683 | ||
1684 | dest = (*t)->to_sections; | |
1685 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
1686 | if (src->bfd != abfd) | |
1687 | { | |
1688 | /* Keep this section. */ | |
1689 | if (dest < src) *dest = *src; | |
1690 | dest++; | |
1691 | } | |
1692 | ||
1693 | /* If we've dropped any sections, resize the section table. */ | |
1694 | if (dest < src) | |
1695 | target_resize_to_sections (*t, dest - src); | |
1696 | } | |
1697 | } | |
1698 | ||
1699 | ||
1700 | ||
1701 | ||
7a292a7a SS |
1702 | /* Find a single runnable target in the stack and return it. If for |
1703 | some reason there is more than one, return NULL. */ | |
1704 | ||
1705 | struct target_ops * | |
fba45db2 | 1706 | find_run_target (void) |
7a292a7a SS |
1707 | { |
1708 | struct target_ops **t; | |
1709 | struct target_ops *runable = NULL; | |
1710 | int count; | |
c5aa993b | 1711 | |
7a292a7a | 1712 | count = 0; |
c5aa993b | 1713 | |
7a292a7a SS |
1714 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
1715 | { | |
c5aa993b | 1716 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
1717 | { |
1718 | runable = *t; | |
1719 | ++count; | |
1720 | } | |
1721 | } | |
c5aa993b | 1722 | |
7a292a7a SS |
1723 | return (count == 1 ? runable : NULL); |
1724 | } | |
1725 | ||
ed9a39eb JM |
1726 | /* Find a single core_stratum target in the list of targets and return it. |
1727 | If for some reason there is more than one, return NULL. */ | |
1728 | ||
c906108c | 1729 | struct target_ops * |
fba45db2 | 1730 | find_core_target (void) |
c906108c SS |
1731 | { |
1732 | struct target_ops **t; | |
1733 | struct target_ops *runable = NULL; | |
1734 | int count; | |
c5aa993b | 1735 | |
c906108c | 1736 | count = 0; |
c5aa993b | 1737 | |
c906108c SS |
1738 | for (t = target_structs; t < target_structs + target_struct_size; |
1739 | ++t) | |
1740 | { | |
1741 | if ((*t)->to_stratum == core_stratum) | |
1742 | { | |
1743 | runable = *t; | |
1744 | ++count; | |
1745 | } | |
1746 | } | |
c5aa993b JM |
1747 | |
1748 | return (count == 1 ? runable : NULL); | |
c906108c | 1749 | } |
ed9a39eb JM |
1750 | |
1751 | /* | |
1752 | * Find the next target down the stack from the specified target. | |
1753 | */ | |
1754 | ||
1755 | struct target_ops * | |
fba45db2 | 1756 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 1757 | { |
258b763a | 1758 | return t->beneath; |
ed9a39eb JM |
1759 | } |
1760 | ||
c906108c SS |
1761 | \f |
1762 | /* The inferior process has died. Long live the inferior! */ | |
1763 | ||
1764 | void | |
fba45db2 | 1765 | generic_mourn_inferior (void) |
c906108c SS |
1766 | { |
1767 | extern int show_breakpoint_hit_counts; | |
1768 | ||
39f77062 | 1769 | inferior_ptid = null_ptid; |
c906108c SS |
1770 | attach_flag = 0; |
1771 | breakpoint_init_inferior (inf_exited); | |
1772 | registers_changed (); | |
1773 | ||
c906108c SS |
1774 | reopen_exec_file (); |
1775 | reinit_frame_cache (); | |
1776 | ||
1777 | /* It is confusing to the user for ignore counts to stick around | |
1778 | from previous runs of the inferior. So clear them. */ | |
1779 | /* However, it is more confusing for the ignore counts to disappear when | |
1780 | using hit counts. So don't clear them if we're counting hits. */ | |
1781 | if (!show_breakpoint_hit_counts) | |
1782 | breakpoint_clear_ignore_counts (); | |
c5b739b5 | 1783 | |
9a4105ab AC |
1784 | if (deprecated_detach_hook) |
1785 | deprecated_detach_hook (); | |
c906108c SS |
1786 | } |
1787 | \f | |
c906108c SS |
1788 | /* Helper function for child_wait and the Lynx derivatives of child_wait. |
1789 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our | |
1790 | translation of that in OURSTATUS. */ | |
1791 | void | |
fba45db2 | 1792 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c SS |
1793 | { |
1794 | #ifdef CHILD_SPECIAL_WAITSTATUS | |
1795 | /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS | |
1796 | if it wants to deal with hoststatus. */ | |
1797 | if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) | |
1798 | return; | |
1799 | #endif | |
1800 | ||
1801 | if (WIFEXITED (hoststatus)) | |
1802 | { | |
1803 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1804 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
1805 | } | |
1806 | else if (!WIFSTOPPED (hoststatus)) | |
1807 | { | |
1808 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1809 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
1810 | } | |
1811 | else | |
1812 | { | |
1813 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1814 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
1815 | } | |
1816 | } | |
1817 | \f | |
c906108c | 1818 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 1819 | int (*target_activity_function) (void); |
c906108c SS |
1820 | int target_activity_fd; |
1821 | \f | |
fd0a2a6f MK |
1822 | /* Convert a normal process ID to a string. Returns the string in a |
1823 | static buffer. */ | |
c906108c SS |
1824 | |
1825 | char * | |
39f77062 | 1826 | normal_pid_to_str (ptid_t ptid) |
c906108c | 1827 | { |
fd0a2a6f | 1828 | static char buf[32]; |
c906108c | 1829 | |
5fff8fc0 | 1830 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
1831 | return buf; |
1832 | } | |
1833 | ||
be4d1333 | 1834 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
1835 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
1836 | { | |
8a3fe4f8 | 1837 | error (_("No target.")); |
be4d1333 MS |
1838 | return 0; |
1839 | } | |
1840 | ||
1841 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
1842 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
1843 | { | |
8a3fe4f8 | 1844 | error (_("No target.")); |
be4d1333 MS |
1845 | return NULL; |
1846 | } | |
1847 | ||
c906108c SS |
1848 | /* Set up the handful of non-empty slots needed by the dummy target |
1849 | vector. */ | |
1850 | ||
1851 | static void | |
fba45db2 | 1852 | init_dummy_target (void) |
c906108c SS |
1853 | { |
1854 | dummy_target.to_shortname = "None"; | |
1855 | dummy_target.to_longname = "None"; | |
1856 | dummy_target.to_doc = ""; | |
1857 | dummy_target.to_attach = find_default_attach; | |
c906108c | 1858 | dummy_target.to_create_inferior = find_default_create_inferior; |
ed9a39eb | 1859 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 1860 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
1861 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
1862 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 1863 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
1864 | dummy_target.to_magic = OPS_MAGIC; |
1865 | } | |
c906108c | 1866 | \f |
c906108c | 1867 | static void |
fba45db2 | 1868 | debug_to_open (char *args, int from_tty) |
c906108c SS |
1869 | { |
1870 | debug_target.to_open (args, from_tty); | |
1871 | ||
96baa820 | 1872 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
1873 | } |
1874 | ||
1875 | static void | |
fba45db2 | 1876 | debug_to_close (int quitting) |
c906108c | 1877 | { |
f1c07ab0 | 1878 | target_close (&debug_target, quitting); |
96baa820 | 1879 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
1880 | } |
1881 | ||
f1c07ab0 AC |
1882 | void |
1883 | target_close (struct target_ops *targ, int quitting) | |
1884 | { | |
1885 | if (targ->to_xclose != NULL) | |
1886 | targ->to_xclose (targ, quitting); | |
1887 | else if (targ->to_close != NULL) | |
1888 | targ->to_close (quitting); | |
1889 | } | |
1890 | ||
c906108c | 1891 | static void |
fba45db2 | 1892 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
1893 | { |
1894 | debug_target.to_attach (args, from_tty); | |
1895 | ||
96baa820 | 1896 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
1897 | } |
1898 | ||
1899 | ||
1900 | static void | |
fba45db2 | 1901 | debug_to_post_attach (int pid) |
c906108c SS |
1902 | { |
1903 | debug_target.to_post_attach (pid); | |
1904 | ||
96baa820 | 1905 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
1906 | } |
1907 | ||
c906108c | 1908 | static void |
fba45db2 | 1909 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
1910 | { |
1911 | debug_target.to_detach (args, from_tty); | |
1912 | ||
96baa820 | 1913 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
1914 | } |
1915 | ||
c906108c | 1916 | static void |
39f77062 | 1917 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 1918 | { |
39f77062 | 1919 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 1920 | |
39f77062 | 1921 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
1922 | step ? "step" : "continue", |
1923 | target_signal_to_name (siggnal)); | |
1924 | } | |
1925 | ||
39f77062 KB |
1926 | static ptid_t |
1927 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 1928 | { |
39f77062 | 1929 | ptid_t retval; |
c906108c | 1930 | |
39f77062 | 1931 | retval = debug_target.to_wait (ptid, status); |
c906108c | 1932 | |
96baa820 | 1933 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
1934 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
1935 | PIDGET (retval)); | |
96baa820 | 1936 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
1937 | switch (status->kind) |
1938 | { | |
1939 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 1940 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
1941 | status->value.integer); |
1942 | break; | |
1943 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 1944 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
1945 | target_signal_to_name (status->value.sig)); |
1946 | break; | |
1947 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 1948 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
1949 | target_signal_to_name (status->value.sig)); |
1950 | break; | |
1951 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 1952 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
1953 | break; |
1954 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 1955 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
1956 | break; |
1957 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 1958 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
1959 | break; |
1960 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 1961 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
1962 | break; |
1963 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 1964 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
1965 | break; |
1966 | default: | |
96baa820 | 1967 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
1968 | break; |
1969 | } | |
1970 | ||
1971 | return retval; | |
1972 | } | |
1973 | ||
bf0c5130 AC |
1974 | static void |
1975 | debug_print_register (const char * func, int regno) | |
1976 | { | |
1977 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1978 | if (regno >= 0 && regno < NUM_REGS + NUM_PSEUDO_REGS | |
1979 | && REGISTER_NAME (regno) != NULL && REGISTER_NAME (regno)[0] != '\0') | |
1980 | fprintf_unfiltered (gdb_stdlog, "(%s)", REGISTER_NAME (regno)); | |
1981 | else | |
1982 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1983 | if (regno >= 0) | |
1984 | { | |
1985 | int i; | |
d9d9c31f | 1986 | unsigned char buf[MAX_REGISTER_SIZE]; |
4caf0990 | 1987 | deprecated_read_register_gen (regno, buf); |
bf0c5130 | 1988 | fprintf_unfiltered (gdb_stdlog, " = "); |
3acba339 | 1989 | for (i = 0; i < register_size (current_gdbarch, regno); i++) |
bf0c5130 AC |
1990 | { |
1991 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1992 | } | |
3acba339 | 1993 | if (register_size (current_gdbarch, regno) <= sizeof (LONGEST)) |
bf0c5130 AC |
1994 | { |
1995 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", | |
1996 | paddr_nz (read_register (regno)), | |
1997 | paddr_d (read_register (regno))); | |
1998 | } | |
1999 | } | |
2000 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2001 | } | |
2002 | ||
c906108c | 2003 | static void |
fba45db2 | 2004 | debug_to_fetch_registers (int regno) |
c906108c SS |
2005 | { |
2006 | debug_target.to_fetch_registers (regno); | |
bf0c5130 | 2007 | debug_print_register ("target_fetch_registers", regno); |
c906108c SS |
2008 | } |
2009 | ||
2010 | static void | |
fba45db2 | 2011 | debug_to_store_registers (int regno) |
c906108c SS |
2012 | { |
2013 | debug_target.to_store_registers (regno); | |
bf0c5130 AC |
2014 | debug_print_register ("target_store_registers", regno); |
2015 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c906108c SS |
2016 | } |
2017 | ||
2018 | static void | |
fba45db2 | 2019 | debug_to_prepare_to_store (void) |
c906108c SS |
2020 | { |
2021 | debug_target.to_prepare_to_store (); | |
2022 | ||
96baa820 | 2023 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
2024 | } |
2025 | ||
2026 | static int | |
961cb7b5 | 2027 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
2028 | int write, struct mem_attrib *attrib, |
2029 | struct target_ops *target) | |
c906108c SS |
2030 | { |
2031 | int retval; | |
2032 | ||
c8e73a31 AC |
2033 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
2034 | attrib, target); | |
c906108c | 2035 | |
96baa820 | 2036 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2037 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 2038 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
2039 | len, write ? "write" : "read", retval); |
2040 | ||
c906108c SS |
2041 | if (retval > 0) |
2042 | { | |
2043 | int i; | |
2044 | ||
96baa820 | 2045 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
2046 | for (i = 0; i < retval; i++) |
2047 | { | |
2048 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
333dabeb DJ |
2049 | { |
2050 | if (targetdebug < 2 && i > 0) | |
2051 | { | |
2052 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
2053 | break; | |
2054 | } | |
2055 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2056 | } | |
2057 | ||
96baa820 | 2058 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
2059 | } |
2060 | } | |
2061 | ||
96baa820 | 2062 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
2063 | |
2064 | return retval; | |
2065 | } | |
2066 | ||
2067 | static void | |
fba45db2 | 2068 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
2069 | { |
2070 | debug_target.to_files_info (target); | |
2071 | ||
96baa820 | 2072 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
2073 | } |
2074 | ||
2075 | static int | |
8181d85f | 2076 | debug_to_insert_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2077 | { |
2078 | int retval; | |
2079 | ||
8181d85f | 2080 | retval = debug_target.to_insert_breakpoint (bp_tgt); |
c906108c | 2081 | |
96baa820 | 2082 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2083 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2084 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2085 | (unsigned long) retval); |
c906108c SS |
2086 | return retval; |
2087 | } | |
2088 | ||
2089 | static int | |
8181d85f | 2090 | debug_to_remove_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2091 | { |
2092 | int retval; | |
2093 | ||
8181d85f | 2094 | retval = debug_target.to_remove_breakpoint (bp_tgt); |
c906108c | 2095 | |
96baa820 | 2096 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2097 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2098 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2099 | (unsigned long) retval); |
c906108c SS |
2100 | return retval; |
2101 | } | |
2102 | ||
ccaa32c7 GS |
2103 | static int |
2104 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2105 | { | |
2106 | int retval; | |
2107 | ||
2108 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2109 | ||
2110 | fprintf_unfiltered (gdb_stdlog, | |
2111 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2112 | (unsigned long) type, | |
2113 | (unsigned long) cnt, | |
2114 | (unsigned long) from_tty, | |
2115 | (unsigned long) retval); | |
2116 | return retval; | |
2117 | } | |
2118 | ||
e0d24f8d WZ |
2119 | static int |
2120 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2121 | { | |
2122 | CORE_ADDR retval; | |
2123 | ||
2124 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
2125 | ||
2126 | fprintf_unfiltered (gdb_stdlog, | |
2127 | "TARGET_REGION_OK_FOR_HW_WATCHPOINT (%ld, %ld) = 0x%lx\n", | |
2128 | (unsigned long) addr, | |
2129 | (unsigned long) len, | |
2130 | (unsigned long) retval); | |
2131 | return retval; | |
2132 | } | |
2133 | ||
ccaa32c7 GS |
2134 | static int |
2135 | debug_to_stopped_by_watchpoint (void) | |
2136 | { | |
2137 | int retval; | |
2138 | ||
2139 | retval = debug_target.to_stopped_by_watchpoint (); | |
2140 | ||
2141 | fprintf_unfiltered (gdb_stdlog, | |
2142 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
2143 | (unsigned long) retval); | |
2144 | return retval; | |
2145 | } | |
2146 | ||
4aa7a7f5 JJ |
2147 | static int |
2148 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 2149 | { |
4aa7a7f5 | 2150 | int retval; |
ccaa32c7 | 2151 | |
4aa7a7f5 | 2152 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
2153 | |
2154 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
2155 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
2156 | (unsigned long)*addr, | |
2157 | (unsigned long)retval); | |
ccaa32c7 GS |
2158 | return retval; |
2159 | } | |
2160 | ||
2161 | static int | |
8181d85f | 2162 | debug_to_insert_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2163 | { |
2164 | int retval; | |
2165 | ||
8181d85f | 2166 | retval = debug_target.to_insert_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2167 | |
2168 | fprintf_unfiltered (gdb_stdlog, | |
2169 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2170 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2171 | (unsigned long) retval); |
2172 | return retval; | |
2173 | } | |
2174 | ||
2175 | static int | |
8181d85f | 2176 | debug_to_remove_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2177 | { |
2178 | int retval; | |
2179 | ||
8181d85f | 2180 | retval = debug_target.to_remove_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2181 | |
2182 | fprintf_unfiltered (gdb_stdlog, | |
2183 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2184 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2185 | (unsigned long) retval); |
2186 | return retval; | |
2187 | } | |
2188 | ||
2189 | static int | |
2190 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2191 | { | |
2192 | int retval; | |
2193 | ||
2194 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2195 | ||
2196 | fprintf_unfiltered (gdb_stdlog, | |
2197 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2198 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2199 | return retval; | |
2200 | } | |
2201 | ||
2202 | static int | |
2203 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2204 | { | |
2205 | int retval; | |
2206 | ||
2207 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2208 | ||
2209 | fprintf_unfiltered (gdb_stdlog, | |
2210 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2211 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2212 | return retval; | |
2213 | } | |
2214 | ||
c906108c | 2215 | static void |
fba45db2 | 2216 | debug_to_terminal_init (void) |
c906108c SS |
2217 | { |
2218 | debug_target.to_terminal_init (); | |
2219 | ||
96baa820 | 2220 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2221 | } |
2222 | ||
2223 | static void | |
fba45db2 | 2224 | debug_to_terminal_inferior (void) |
c906108c SS |
2225 | { |
2226 | debug_target.to_terminal_inferior (); | |
2227 | ||
96baa820 | 2228 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2229 | } |
2230 | ||
2231 | static void | |
fba45db2 | 2232 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2233 | { |
2234 | debug_target.to_terminal_ours_for_output (); | |
2235 | ||
96baa820 | 2236 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2237 | } |
2238 | ||
2239 | static void | |
fba45db2 | 2240 | debug_to_terminal_ours (void) |
c906108c SS |
2241 | { |
2242 | debug_target.to_terminal_ours (); | |
2243 | ||
96baa820 | 2244 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2245 | } |
2246 | ||
a790ad35 SC |
2247 | static void |
2248 | debug_to_terminal_save_ours (void) | |
2249 | { | |
2250 | debug_target.to_terminal_save_ours (); | |
2251 | ||
2252 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2253 | } | |
2254 | ||
c906108c | 2255 | static void |
fba45db2 | 2256 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2257 | { |
2258 | debug_target.to_terminal_info (arg, from_tty); | |
2259 | ||
96baa820 | 2260 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2261 | from_tty); |
2262 | } | |
2263 | ||
2264 | static void | |
fba45db2 | 2265 | debug_to_kill (void) |
c906108c SS |
2266 | { |
2267 | debug_target.to_kill (); | |
2268 | ||
96baa820 | 2269 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2270 | } |
2271 | ||
2272 | static void | |
fba45db2 | 2273 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2274 | { |
2275 | debug_target.to_load (args, from_tty); | |
2276 | ||
96baa820 | 2277 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2278 | } |
2279 | ||
2280 | static int | |
fba45db2 | 2281 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2282 | { |
2283 | int retval; | |
2284 | ||
2285 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2286 | ||
96baa820 | 2287 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2288 | |
2289 | return retval; | |
2290 | } | |
2291 | ||
2292 | static void | |
c27cda74 AC |
2293 | debug_to_create_inferior (char *exec_file, char *args, char **env, |
2294 | int from_tty) | |
c906108c | 2295 | { |
c27cda74 | 2296 | debug_target.to_create_inferior (exec_file, args, env, from_tty); |
c906108c | 2297 | |
c27cda74 AC |
2298 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx, %d)\n", |
2299 | exec_file, args, from_tty); | |
c906108c SS |
2300 | } |
2301 | ||
2302 | static void | |
39f77062 | 2303 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2304 | { |
39f77062 | 2305 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2306 | |
96baa820 | 2307 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2308 | PIDGET (ptid)); |
c906108c SS |
2309 | } |
2310 | ||
2311 | static void | |
fba45db2 | 2312 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2313 | { |
2314 | debug_target.to_acknowledge_created_inferior (pid); | |
2315 | ||
96baa820 | 2316 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2317 | pid); |
2318 | } | |
2319 | ||
fa113d1a | 2320 | static void |
fba45db2 | 2321 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2322 | { |
fa113d1a | 2323 | debug_target.to_insert_fork_catchpoint (pid); |
c906108c | 2324 | |
fa113d1a AC |
2325 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n", |
2326 | pid); | |
c906108c SS |
2327 | } |
2328 | ||
2329 | static int | |
fba45db2 | 2330 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2331 | { |
c5aa993b | 2332 | int retval; |
c906108c SS |
2333 | |
2334 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2335 | ||
96baa820 | 2336 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2337 | pid, retval); |
c906108c SS |
2338 | |
2339 | return retval; | |
2340 | } | |
2341 | ||
fa113d1a | 2342 | static void |
fba45db2 | 2343 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2344 | { |
fa113d1a | 2345 | debug_target.to_insert_vfork_catchpoint (pid); |
c906108c | 2346 | |
fa113d1a AC |
2347 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n", |
2348 | pid); | |
c906108c SS |
2349 | } |
2350 | ||
2351 | static int | |
fba45db2 | 2352 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2353 | { |
c5aa993b | 2354 | int retval; |
c906108c SS |
2355 | |
2356 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2357 | ||
96baa820 | 2358 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2359 | pid, retval); |
c906108c SS |
2360 | |
2361 | return retval; | |
2362 | } | |
2363 | ||
fa113d1a | 2364 | static void |
fba45db2 | 2365 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2366 | { |
fa113d1a | 2367 | debug_target.to_insert_exec_catchpoint (pid); |
c906108c | 2368 | |
fa113d1a AC |
2369 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n", |
2370 | pid); | |
c906108c SS |
2371 | } |
2372 | ||
2373 | static int | |
fba45db2 | 2374 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2375 | { |
c5aa993b | 2376 | int retval; |
c906108c SS |
2377 | |
2378 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2379 | ||
96baa820 | 2380 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2381 | pid, retval); |
c906108c SS |
2382 | |
2383 | return retval; | |
2384 | } | |
2385 | ||
c906108c | 2386 | static int |
fba45db2 | 2387 | debug_to_reported_exec_events_per_exec_call (void) |
c906108c | 2388 | { |
c5aa993b | 2389 | int reported_exec_events; |
c906108c SS |
2390 | |
2391 | reported_exec_events = debug_target.to_reported_exec_events_per_exec_call (); | |
2392 | ||
96baa820 | 2393 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2394 | "target_reported_exec_events_per_exec_call () = %d\n", |
c5aa993b | 2395 | reported_exec_events); |
c906108c SS |
2396 | |
2397 | return reported_exec_events; | |
2398 | } | |
2399 | ||
c906108c | 2400 | static int |
fba45db2 | 2401 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2402 | { |
c5aa993b | 2403 | int has_exited; |
c906108c SS |
2404 | |
2405 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2406 | ||
96baa820 | 2407 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2408 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2409 | |
2410 | return has_exited; | |
2411 | } | |
2412 | ||
2413 | static void | |
fba45db2 | 2414 | debug_to_mourn_inferior (void) |
c906108c SS |
2415 | { |
2416 | debug_target.to_mourn_inferior (); | |
2417 | ||
96baa820 | 2418 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2419 | } |
2420 | ||
2421 | static int | |
fba45db2 | 2422 | debug_to_can_run (void) |
c906108c SS |
2423 | { |
2424 | int retval; | |
2425 | ||
2426 | retval = debug_target.to_can_run (); | |
2427 | ||
96baa820 | 2428 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
2429 | |
2430 | return retval; | |
2431 | } | |
2432 | ||
2433 | static void | |
39f77062 | 2434 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 2435 | { |
39f77062 | 2436 | debug_target.to_notice_signals (ptid); |
c906108c | 2437 | |
39f77062 KB |
2438 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
2439 | PIDGET (ptid)); | |
c906108c SS |
2440 | } |
2441 | ||
2442 | static int | |
39f77062 | 2443 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
2444 | { |
2445 | int retval; | |
2446 | ||
39f77062 | 2447 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 2448 | |
96baa820 | 2449 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 2450 | PIDGET (ptid), retval); |
c906108c SS |
2451 | |
2452 | return retval; | |
2453 | } | |
2454 | ||
0d06e24b | 2455 | static void |
fba45db2 | 2456 | debug_to_find_new_threads (void) |
0d06e24b JM |
2457 | { |
2458 | debug_target.to_find_new_threads (); | |
2459 | ||
2460 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
2461 | } | |
2462 | ||
c906108c | 2463 | static void |
fba45db2 | 2464 | debug_to_stop (void) |
c906108c SS |
2465 | { |
2466 | debug_target.to_stop (); | |
2467 | ||
96baa820 | 2468 | fprintf_unfiltered (gdb_stdlog, "target_stop ()\n"); |
c906108c SS |
2469 | } |
2470 | ||
96baa820 JM |
2471 | static void |
2472 | debug_to_rcmd (char *command, | |
d9fcf2fb | 2473 | struct ui_file *outbuf) |
96baa820 JM |
2474 | { |
2475 | debug_target.to_rcmd (command, outbuf); | |
2476 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
2477 | } | |
2478 | ||
c906108c | 2479 | static struct symtab_and_line * |
fba45db2 | 2480 | debug_to_enable_exception_callback (enum exception_event_kind kind, int enable) |
c906108c | 2481 | { |
7a292a7a SS |
2482 | struct symtab_and_line *result; |
2483 | result = debug_target.to_enable_exception_callback (kind, enable); | |
96baa820 | 2484 | fprintf_unfiltered (gdb_stdlog, |
c906108c SS |
2485 | "target get_exception_callback_sal (%d, %d)\n", |
2486 | kind, enable); | |
7a292a7a | 2487 | return result; |
c906108c SS |
2488 | } |
2489 | ||
2490 | static struct exception_event_record * | |
fba45db2 | 2491 | debug_to_get_current_exception_event (void) |
c906108c | 2492 | { |
7a292a7a | 2493 | struct exception_event_record *result; |
c5aa993b | 2494 | result = debug_target.to_get_current_exception_event (); |
96baa820 | 2495 | fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n"); |
7a292a7a | 2496 | return result; |
c906108c SS |
2497 | } |
2498 | ||
2499 | static char * | |
fba45db2 | 2500 | debug_to_pid_to_exec_file (int pid) |
c906108c | 2501 | { |
c5aa993b | 2502 | char *exec_file; |
c906108c SS |
2503 | |
2504 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
2505 | ||
96baa820 | 2506 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 2507 | pid, exec_file); |
c906108c SS |
2508 | |
2509 | return exec_file; | |
2510 | } | |
2511 | ||
c906108c | 2512 | static void |
fba45db2 | 2513 | setup_target_debug (void) |
c906108c SS |
2514 | { |
2515 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
2516 | ||
2517 | current_target.to_open = debug_to_open; | |
2518 | current_target.to_close = debug_to_close; | |
2519 | current_target.to_attach = debug_to_attach; | |
2520 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 2521 | current_target.to_detach = debug_to_detach; |
c906108c SS |
2522 | current_target.to_resume = debug_to_resume; |
2523 | current_target.to_wait = debug_to_wait; | |
c906108c SS |
2524 | current_target.to_fetch_registers = debug_to_fetch_registers; |
2525 | current_target.to_store_registers = debug_to_store_registers; | |
2526 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
c8e73a31 | 2527 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
2528 | current_target.to_files_info = debug_to_files_info; |
2529 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
2530 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
2531 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
2532 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
2533 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
2534 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
2535 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
2536 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
2537 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
e0d24f8d | 2538 | current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint; |
c906108c SS |
2539 | current_target.to_terminal_init = debug_to_terminal_init; |
2540 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
2541 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
2542 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 2543 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
2544 | current_target.to_terminal_info = debug_to_terminal_info; |
2545 | current_target.to_kill = debug_to_kill; | |
2546 | current_target.to_load = debug_to_load; | |
2547 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
2548 | current_target.to_create_inferior = debug_to_create_inferior; | |
2549 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
2550 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
2551 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
2552 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
2553 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
2554 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
2555 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
2556 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 2557 | current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call; |
c906108c SS |
2558 | current_target.to_has_exited = debug_to_has_exited; |
2559 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
2560 | current_target.to_can_run = debug_to_can_run; | |
2561 | current_target.to_notice_signals = debug_to_notice_signals; | |
2562 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 2563 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 2564 | current_target.to_stop = debug_to_stop; |
96baa820 | 2565 | current_target.to_rcmd = debug_to_rcmd; |
c906108c SS |
2566 | current_target.to_enable_exception_callback = debug_to_enable_exception_callback; |
2567 | current_target.to_get_current_exception_event = debug_to_get_current_exception_event; | |
2568 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; | |
c906108c | 2569 | } |
c906108c | 2570 | \f |
c5aa993b JM |
2571 | |
2572 | static char targ_desc[] = | |
2573 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
2574 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
2575 | core-file, and process, if any), as well as the symbol file name."; | |
2576 | ||
96baa820 JM |
2577 | static void |
2578 | do_monitor_command (char *cmd, | |
2579 | int from_tty) | |
2580 | { | |
2b5fe715 AC |
2581 | if ((current_target.to_rcmd |
2582 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 2583 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
2584 | && (debug_target.to_rcmd |
2585 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 2586 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
2587 | target_rcmd (cmd, gdb_stdtarg); |
2588 | } | |
2589 | ||
c906108c | 2590 | void |
fba45db2 | 2591 | initialize_targets (void) |
c906108c SS |
2592 | { |
2593 | init_dummy_target (); | |
2594 | push_target (&dummy_target); | |
2595 | ||
2596 | add_info ("target", target_info, targ_desc); | |
2597 | add_info ("files", target_info, targ_desc); | |
2598 | ||
85c07804 AC |
2599 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
2600 | Set target debugging."), _("\ | |
2601 | Show target debugging."), _("\ | |
333dabeb DJ |
2602 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
2603 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
2604 | command."), |
2605 | NULL, | |
920d2a44 | 2606 | show_targetdebug, |
85c07804 | 2607 | &setdebuglist, &showdebuglist); |
3a11626d | 2608 | |
e707bbc2 | 2609 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
2610 | &trust_readonly, _("\ |
2611 | Set mode for reading from readonly sections."), _("\ | |
2612 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
2613 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
2614 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 2615 | result in significant performance improvement for remote targets."), |
2c5b56ce | 2616 | NULL, |
920d2a44 | 2617 | show_trust_readonly, |
e707bbc2 | 2618 | &setlist, &showlist); |
96baa820 JM |
2619 | |
2620 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 2621 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 2622 | |
8add0441 | 2623 | target_dcache = dcache_init (); |
c906108c | 2624 | } |