Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
6aba47ca | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
9b254dd1 | 4 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
f6519ebc | 5 | Free Software Foundation, Inc. |
7998dfc3 | 6 | |
c906108c SS |
7 | Contributed by Cygnus Support. |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include <errno.h> | |
c906108c SS |
26 | #include "gdb_string.h" |
27 | #include "target.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "symtab.h" | |
30 | #include "inferior.h" | |
31 | #include "bfd.h" | |
32 | #include "symfile.h" | |
33 | #include "objfiles.h" | |
03f2053f | 34 | #include "gdb_wait.h" |
4930751a | 35 | #include "dcache.h" |
c906108c | 36 | #include <signal.h> |
4e052eda | 37 | #include "regcache.h" |
0088c768 | 38 | #include "gdb_assert.h" |
b6591e8b | 39 | #include "gdbcore.h" |
9e35dae4 | 40 | #include "exceptions.h" |
424163ea | 41 | #include "target-descriptions.h" |
e1ac3328 | 42 | #include "gdbthread.h" |
c906108c | 43 | |
a14ed312 | 44 | static void target_info (char *, int); |
c906108c | 45 | |
a14ed312 | 46 | static void maybe_kill_then_attach (char *, int); |
c906108c | 47 | |
a14ed312 | 48 | static void kill_or_be_killed (int); |
c906108c | 49 | |
a14ed312 | 50 | static void default_terminal_info (char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
e0d24f8d WZ |
55 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
56 | ||
a14ed312 | 57 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 58 | |
4ecb6f27 | 59 | static void tcomplain (void) ATTR_NORETURN; |
c906108c | 60 | |
a14ed312 | 61 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 62 | |
a14ed312 | 63 | static int return_zero (void); |
c906108c | 64 | |
a14ed312 | 65 | static int return_one (void); |
c906108c | 66 | |
ccaa32c7 GS |
67 | static int return_minus_one (void); |
68 | ||
a14ed312 | 69 | void target_ignore (void); |
c906108c | 70 | |
a14ed312 | 71 | static void target_command (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static struct target_ops *find_default_run_target (char *); |
c906108c | 74 | |
a14ed312 | 75 | static void nosupport_runtime (void); |
392a587b | 76 | |
4b8a223f | 77 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 78 | enum target_object object, |
1b0ba102 AC |
79 | const char *annex, gdb_byte *readbuf, |
80 | const gdb_byte *writebuf, | |
8aa91c1e | 81 | ULONGEST offset, LONGEST len); |
0088c768 | 82 | |
cf7a04e8 DJ |
83 | static LONGEST current_xfer_partial (struct target_ops *ops, |
84 | enum target_object object, | |
85 | const char *annex, gdb_byte *readbuf, | |
86 | const gdb_byte *writebuf, | |
87 | ULONGEST offset, LONGEST len); | |
c906108c | 88 | |
cf7a04e8 DJ |
89 | static LONGEST target_xfer_partial (struct target_ops *ops, |
90 | enum target_object object, | |
91 | const char *annex, | |
92 | void *readbuf, const void *writebuf, | |
93 | ULONGEST offset, LONGEST len); | |
c906108c | 94 | |
a14ed312 | 95 | static void init_dummy_target (void); |
c906108c | 96 | |
aa869812 AC |
97 | static struct target_ops debug_target; |
98 | ||
a14ed312 | 99 | static void debug_to_open (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void debug_to_close (int); |
c906108c | 102 | |
a14ed312 | 103 | static void debug_to_attach (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void debug_to_detach (char *, int); |
c906108c | 106 | |
39f77062 | 107 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 108 | |
39f77062 | 109 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 110 | |
56be3814 | 111 | static void debug_to_fetch_registers (struct regcache *, int); |
c906108c | 112 | |
56be3814 | 113 | static void debug_to_store_registers (struct regcache *, int); |
c906108c | 114 | |
316f2060 | 115 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 116 | |
a14ed312 | 117 | static void debug_to_files_info (struct target_ops *); |
c906108c | 118 | |
8181d85f | 119 | static int debug_to_insert_breakpoint (struct bp_target_info *); |
c906108c | 120 | |
8181d85f | 121 | static int debug_to_remove_breakpoint (struct bp_target_info *); |
c906108c | 122 | |
ccaa32c7 GS |
123 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
124 | ||
8181d85f | 125 | static int debug_to_insert_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 | 126 | |
8181d85f | 127 | static int debug_to_remove_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 GS |
128 | |
129 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
130 | ||
131 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
132 | ||
133 | static int debug_to_stopped_by_watchpoint (void); | |
134 | ||
4aa7a7f5 | 135 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 136 | |
5009afc5 AS |
137 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
138 | CORE_ADDR, CORE_ADDR, int); | |
139 | ||
e0d24f8d WZ |
140 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
141 | ||
a14ed312 | 142 | static void debug_to_terminal_init (void); |
c906108c | 143 | |
a14ed312 | 144 | static void debug_to_terminal_inferior (void); |
c906108c | 145 | |
a14ed312 | 146 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 147 | |
a790ad35 SC |
148 | static void debug_to_terminal_save_ours (void); |
149 | ||
a14ed312 | 150 | static void debug_to_terminal_ours (void); |
c906108c | 151 | |
a14ed312 | 152 | static void debug_to_terminal_info (char *, int); |
c906108c | 153 | |
a14ed312 | 154 | static void debug_to_kill (void); |
c906108c | 155 | |
a14ed312 | 156 | static void debug_to_load (char *, int); |
c906108c | 157 | |
a14ed312 | 158 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 159 | |
a14ed312 | 160 | static void debug_to_mourn_inferior (void); |
c906108c | 161 | |
a14ed312 | 162 | static int debug_to_can_run (void); |
c906108c | 163 | |
39f77062 | 164 | static void debug_to_notice_signals (ptid_t); |
c906108c | 165 | |
39f77062 | 166 | static int debug_to_thread_alive (ptid_t); |
c906108c | 167 | |
a14ed312 | 168 | static void debug_to_stop (void); |
c906108c | 169 | |
5ac10fd1 AC |
170 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
171 | wierd and mysterious ways. Putting the variable here lets those | |
172 | wierd and mysterious ways keep building while they are being | |
173 | converted to the inferior inheritance structure. */ | |
1df84f13 | 174 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 175 | |
c906108c | 176 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 177 | array; the current index into the array; the allocated size of the |
c906108c SS |
178 | array. */ |
179 | struct target_ops **target_structs; | |
180 | unsigned target_struct_size; | |
181 | unsigned target_struct_index; | |
182 | unsigned target_struct_allocsize; | |
183 | #define DEFAULT_ALLOCSIZE 10 | |
184 | ||
185 | /* The initial current target, so that there is always a semi-valid | |
186 | current target. */ | |
187 | ||
188 | static struct target_ops dummy_target; | |
189 | ||
190 | /* Top of target stack. */ | |
191 | ||
258b763a | 192 | static struct target_ops *target_stack; |
c906108c SS |
193 | |
194 | /* The target structure we are currently using to talk to a process | |
195 | or file or whatever "inferior" we have. */ | |
196 | ||
197 | struct target_ops current_target; | |
198 | ||
199 | /* Command list for target. */ | |
200 | ||
201 | static struct cmd_list_element *targetlist = NULL; | |
202 | ||
203 | /* Nonzero if we are debugging an attached outside process | |
204 | rather than an inferior. */ | |
205 | ||
206 | int attach_flag; | |
207 | ||
cf7a04e8 DJ |
208 | /* Nonzero if we should trust readonly sections from the |
209 | executable when reading memory. */ | |
210 | ||
211 | static int trust_readonly = 0; | |
212 | ||
8defab1a DJ |
213 | /* Nonzero if we should show true memory content including |
214 | memory breakpoint inserted by gdb. */ | |
215 | ||
216 | static int show_memory_breakpoints = 0; | |
217 | ||
c906108c SS |
218 | /* Non-zero if we want to see trace of target level stuff. */ |
219 | ||
220 | static int targetdebug = 0; | |
920d2a44 AC |
221 | static void |
222 | show_targetdebug (struct ui_file *file, int from_tty, | |
223 | struct cmd_list_element *c, const char *value) | |
224 | { | |
225 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
226 | } | |
c906108c | 227 | |
a14ed312 | 228 | static void setup_target_debug (void); |
c906108c | 229 | |
4930751a C |
230 | DCACHE *target_dcache; |
231 | ||
c906108c SS |
232 | /* The user just typed 'target' without the name of a target. */ |
233 | ||
c906108c | 234 | static void |
fba45db2 | 235 | target_command (char *arg, int from_tty) |
c906108c SS |
236 | { |
237 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
238 | gdb_stdout); | |
239 | } | |
240 | ||
241 | /* Add a possible target architecture to the list. */ | |
242 | ||
243 | void | |
fba45db2 | 244 | add_target (struct target_ops *t) |
c906108c | 245 | { |
0088c768 | 246 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
247 | if (t->to_xfer_partial == NULL) |
248 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 249 | |
c906108c SS |
250 | if (!target_structs) |
251 | { | |
252 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
253 | target_structs = (struct target_ops **) xmalloc | |
254 | (target_struct_allocsize * sizeof (*target_structs)); | |
255 | } | |
256 | if (target_struct_size >= target_struct_allocsize) | |
257 | { | |
258 | target_struct_allocsize *= 2; | |
259 | target_structs = (struct target_ops **) | |
c5aa993b JM |
260 | xrealloc ((char *) target_structs, |
261 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
262 | } |
263 | target_structs[target_struct_size++] = t; | |
c906108c SS |
264 | |
265 | if (targetlist == NULL) | |
1bedd215 AC |
266 | add_prefix_cmd ("target", class_run, target_command, _("\ |
267 | Connect to a target machine or process.\n\ | |
c906108c SS |
268 | The first argument is the type or protocol of the target machine.\n\ |
269 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
270 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 271 | `help target ' followed by the protocol name."), |
c906108c SS |
272 | &targetlist, "target ", 0, &cmdlist); |
273 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
274 | } | |
275 | ||
276 | /* Stub functions */ | |
277 | ||
278 | void | |
fba45db2 | 279 | target_ignore (void) |
c906108c SS |
280 | { |
281 | } | |
282 | ||
11cf8741 JM |
283 | void |
284 | target_load (char *arg, int from_tty) | |
285 | { | |
4930751a | 286 | dcache_invalidate (target_dcache); |
11cf8741 JM |
287 | (*current_target.to_load) (arg, from_tty); |
288 | } | |
289 | ||
c906108c | 290 | static int |
fba45db2 KB |
291 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
292 | struct target_ops *t) | |
c906108c | 293 | { |
c5aa993b JM |
294 | errno = EIO; /* Can't read/write this location */ |
295 | return 0; /* No bytes handled */ | |
c906108c SS |
296 | } |
297 | ||
298 | static void | |
fba45db2 | 299 | tcomplain (void) |
c906108c | 300 | { |
8a3fe4f8 | 301 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
302 | current_target.to_shortname); |
303 | } | |
304 | ||
305 | void | |
fba45db2 | 306 | noprocess (void) |
c906108c | 307 | { |
8a3fe4f8 | 308 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
309 | } |
310 | ||
c906108c | 311 | static int |
fba45db2 | 312 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 313 | { |
c5aa993b | 314 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
315 | } |
316 | ||
392a587b | 317 | static void |
fba45db2 | 318 | nosupport_runtime (void) |
c906108c | 319 | { |
39f77062 | 320 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
321 | noprocess (); |
322 | else | |
8a3fe4f8 | 323 | error (_("No run-time support for this")); |
c906108c SS |
324 | } |
325 | ||
326 | ||
c906108c | 327 | static void |
fba45db2 | 328 | default_terminal_info (char *args, int from_tty) |
c906108c | 329 | { |
a3f17187 | 330 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
331 | } |
332 | ||
333 | /* This is the default target_create_inferior and target_attach function. | |
334 | If the current target is executing, it asks whether to kill it off. | |
335 | If this function returns without calling error(), it has killed off | |
336 | the target, and the operation should be attempted. */ | |
337 | ||
338 | static void | |
fba45db2 | 339 | kill_or_be_killed (int from_tty) |
c906108c SS |
340 | { |
341 | if (target_has_execution) | |
342 | { | |
a3f17187 | 343 | printf_unfiltered (_("You are already running a program:\n")); |
c906108c | 344 | target_files_info (); |
c5aa993b JM |
345 | if (query ("Kill it? ")) |
346 | { | |
347 | target_kill (); | |
348 | if (target_has_execution) | |
8a3fe4f8 | 349 | error (_("Killing the program did not help.")); |
c5aa993b JM |
350 | return; |
351 | } | |
352 | else | |
353 | { | |
8a3fe4f8 | 354 | error (_("Program not killed.")); |
c5aa993b | 355 | } |
c906108c | 356 | } |
c5aa993b | 357 | tcomplain (); |
c906108c SS |
358 | } |
359 | ||
360 | static void | |
fba45db2 | 361 | maybe_kill_then_attach (char *args, int from_tty) |
c906108c SS |
362 | { |
363 | kill_or_be_killed (from_tty); | |
364 | target_attach (args, from_tty); | |
365 | } | |
366 | ||
367 | static void | |
c27cda74 AC |
368 | maybe_kill_then_create_inferior (char *exec, char *args, char **env, |
369 | int from_tty) | |
c906108c SS |
370 | { |
371 | kill_or_be_killed (0); | |
c27cda74 | 372 | target_create_inferior (exec, args, env, from_tty); |
c906108c SS |
373 | } |
374 | ||
7998dfc3 AC |
375 | /* Go through the target stack from top to bottom, copying over zero |
376 | entries in current_target, then filling in still empty entries. In | |
377 | effect, we are doing class inheritance through the pushed target | |
378 | vectors. | |
379 | ||
380 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
381 | is currently implemented, is that it discards any knowledge of | |
382 | which target an inherited method originally belonged to. | |
383 | Consequently, new new target methods should instead explicitly and | |
384 | locally search the target stack for the target that can handle the | |
385 | request. */ | |
c906108c SS |
386 | |
387 | static void | |
7998dfc3 | 388 | update_current_target (void) |
c906108c | 389 | { |
7998dfc3 AC |
390 | struct target_ops *t; |
391 | ||
08d8bcd7 | 392 | /* First, reset current's contents. */ |
7998dfc3 AC |
393 | memset (¤t_target, 0, sizeof (current_target)); |
394 | ||
395 | #define INHERIT(FIELD, TARGET) \ | |
396 | if (!current_target.FIELD) \ | |
397 | current_target.FIELD = (TARGET)->FIELD | |
398 | ||
399 | for (t = target_stack; t; t = t->beneath) | |
400 | { | |
401 | INHERIT (to_shortname, t); | |
402 | INHERIT (to_longname, t); | |
403 | INHERIT (to_doc, t); | |
404 | INHERIT (to_open, t); | |
405 | INHERIT (to_close, t); | |
406 | INHERIT (to_attach, t); | |
407 | INHERIT (to_post_attach, t); | |
408 | INHERIT (to_detach, t); | |
597320e7 | 409 | /* Do not inherit to_disconnect. */ |
7998dfc3 AC |
410 | INHERIT (to_resume, t); |
411 | INHERIT (to_wait, t); | |
7998dfc3 AC |
412 | INHERIT (to_fetch_registers, t); |
413 | INHERIT (to_store_registers, t); | |
414 | INHERIT (to_prepare_to_store, t); | |
c8e73a31 | 415 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
416 | INHERIT (to_files_info, t); |
417 | INHERIT (to_insert_breakpoint, t); | |
418 | INHERIT (to_remove_breakpoint, t); | |
419 | INHERIT (to_can_use_hw_breakpoint, t); | |
420 | INHERIT (to_insert_hw_breakpoint, t); | |
421 | INHERIT (to_remove_hw_breakpoint, t); | |
422 | INHERIT (to_insert_watchpoint, t); | |
423 | INHERIT (to_remove_watchpoint, t); | |
424 | INHERIT (to_stopped_data_address, t); | |
74174d2e | 425 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 426 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
427 | INHERIT (to_stopped_by_watchpoint, t); |
428 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 429 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
7998dfc3 AC |
430 | INHERIT (to_terminal_init, t); |
431 | INHERIT (to_terminal_inferior, t); | |
432 | INHERIT (to_terminal_ours_for_output, t); | |
433 | INHERIT (to_terminal_ours, t); | |
434 | INHERIT (to_terminal_save_ours, t); | |
435 | INHERIT (to_terminal_info, t); | |
436 | INHERIT (to_kill, t); | |
437 | INHERIT (to_load, t); | |
438 | INHERIT (to_lookup_symbol, t); | |
439 | INHERIT (to_create_inferior, t); | |
440 | INHERIT (to_post_startup_inferior, t); | |
441 | INHERIT (to_acknowledge_created_inferior, t); | |
442 | INHERIT (to_insert_fork_catchpoint, t); | |
443 | INHERIT (to_remove_fork_catchpoint, t); | |
444 | INHERIT (to_insert_vfork_catchpoint, t); | |
445 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 446 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
447 | INHERIT (to_insert_exec_catchpoint, t); |
448 | INHERIT (to_remove_exec_catchpoint, t); | |
7998dfc3 AC |
449 | INHERIT (to_has_exited, t); |
450 | INHERIT (to_mourn_inferior, t); | |
451 | INHERIT (to_can_run, t); | |
452 | INHERIT (to_notice_signals, t); | |
453 | INHERIT (to_thread_alive, t); | |
454 | INHERIT (to_find_new_threads, t); | |
455 | INHERIT (to_pid_to_str, t); | |
456 | INHERIT (to_extra_thread_info, t); | |
457 | INHERIT (to_stop, t); | |
4b8a223f | 458 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 459 | INHERIT (to_rcmd, t); |
7998dfc3 | 460 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 461 | INHERIT (to_log_command, t); |
7998dfc3 AC |
462 | INHERIT (to_stratum, t); |
463 | INHERIT (to_has_all_memory, t); | |
464 | INHERIT (to_has_memory, t); | |
465 | INHERIT (to_has_stack, t); | |
466 | INHERIT (to_has_registers, t); | |
467 | INHERIT (to_has_execution, t); | |
468 | INHERIT (to_has_thread_control, t); | |
469 | INHERIT (to_sections, t); | |
470 | INHERIT (to_sections_end, t); | |
471 | INHERIT (to_can_async_p, t); | |
472 | INHERIT (to_is_async_p, t); | |
473 | INHERIT (to_async, t); | |
b84876c2 | 474 | INHERIT (to_async_mask, t); |
7998dfc3 AC |
475 | INHERIT (to_find_memory_regions, t); |
476 | INHERIT (to_make_corefile_notes, t); | |
477 | INHERIT (to_get_thread_local_address, t); | |
424163ea | 478 | /* Do not inherit to_read_description. */ |
08388c79 | 479 | /* Do not inherit to_search_memory. */ |
7998dfc3 | 480 | INHERIT (to_magic, t); |
fd79ecee | 481 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
482 | /* Do not inherit to_flash_erase. */ |
483 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
484 | } |
485 | #undef INHERIT | |
486 | ||
487 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
488 | it. Some entries are defaulted to a method that print an error, |
489 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
490 | |
491 | #define de_fault(field, value) \ | |
7998dfc3 AC |
492 | if (!current_target.field) \ |
493 | current_target.field = value | |
0d06e24b | 494 | |
2bc416ba DJ |
495 | de_fault (to_open, |
496 | (void (*) (char *, int)) | |
0d06e24b | 497 | tcomplain); |
2bc416ba DJ |
498 | de_fault (to_close, |
499 | (void (*) (int)) | |
0d06e24b | 500 | target_ignore); |
2bc416ba | 501 | de_fault (to_attach, |
0d06e24b | 502 | maybe_kill_then_attach); |
2bc416ba DJ |
503 | de_fault (to_post_attach, |
504 | (void (*) (int)) | |
0d06e24b | 505 | target_ignore); |
2bc416ba DJ |
506 | de_fault (to_detach, |
507 | (void (*) (char *, int)) | |
0d06e24b | 508 | target_ignore); |
2bc416ba DJ |
509 | de_fault (to_resume, |
510 | (void (*) (ptid_t, int, enum target_signal)) | |
0d06e24b | 511 | noprocess); |
2bc416ba DJ |
512 | de_fault (to_wait, |
513 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) | |
0d06e24b | 514 | noprocess); |
2bc416ba | 515 | de_fault (to_fetch_registers, |
56be3814 | 516 | (void (*) (struct regcache *, int)) |
0d06e24b | 517 | target_ignore); |
2bc416ba | 518 | de_fault (to_store_registers, |
56be3814 | 519 | (void (*) (struct regcache *, int)) |
0d06e24b | 520 | noprocess); |
2bc416ba | 521 | de_fault (to_prepare_to_store, |
316f2060 | 522 | (void (*) (struct regcache *)) |
0d06e24b | 523 | noprocess); |
2bc416ba DJ |
524 | de_fault (deprecated_xfer_memory, |
525 | (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 526 | nomemory); |
2bc416ba DJ |
527 | de_fault (to_files_info, |
528 | (void (*) (struct target_ops *)) | |
0d06e24b | 529 | target_ignore); |
2bc416ba | 530 | de_fault (to_insert_breakpoint, |
0d06e24b | 531 | memory_insert_breakpoint); |
2bc416ba | 532 | de_fault (to_remove_breakpoint, |
0d06e24b | 533 | memory_remove_breakpoint); |
ccaa32c7 GS |
534 | de_fault (to_can_use_hw_breakpoint, |
535 | (int (*) (int, int, int)) | |
536 | return_zero); | |
537 | de_fault (to_insert_hw_breakpoint, | |
8181d85f | 538 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
539 | return_minus_one); |
540 | de_fault (to_remove_hw_breakpoint, | |
8181d85f | 541 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
542 | return_minus_one); |
543 | de_fault (to_insert_watchpoint, | |
544 | (int (*) (CORE_ADDR, int, int)) | |
545 | return_minus_one); | |
546 | de_fault (to_remove_watchpoint, | |
547 | (int (*) (CORE_ADDR, int, int)) | |
548 | return_minus_one); | |
549 | de_fault (to_stopped_by_watchpoint, | |
550 | (int (*) (void)) | |
551 | return_zero); | |
552 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 553 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 554 | return_zero); |
5009afc5 AS |
555 | de_fault (to_watchpoint_addr_within_range, |
556 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
557 | de_fault (to_region_ok_for_hw_watchpoint, |
558 | default_region_ok_for_hw_watchpoint); | |
2bc416ba DJ |
559 | de_fault (to_terminal_init, |
560 | (void (*) (void)) | |
0d06e24b | 561 | target_ignore); |
2bc416ba DJ |
562 | de_fault (to_terminal_inferior, |
563 | (void (*) (void)) | |
0d06e24b | 564 | target_ignore); |
2bc416ba DJ |
565 | de_fault (to_terminal_ours_for_output, |
566 | (void (*) (void)) | |
0d06e24b | 567 | target_ignore); |
2bc416ba DJ |
568 | de_fault (to_terminal_ours, |
569 | (void (*) (void)) | |
0d06e24b | 570 | target_ignore); |
2bc416ba DJ |
571 | de_fault (to_terminal_save_ours, |
572 | (void (*) (void)) | |
a790ad35 | 573 | target_ignore); |
2bc416ba | 574 | de_fault (to_terminal_info, |
0d06e24b | 575 | default_terminal_info); |
2bc416ba DJ |
576 | de_fault (to_kill, |
577 | (void (*) (void)) | |
0d06e24b | 578 | noprocess); |
2bc416ba DJ |
579 | de_fault (to_load, |
580 | (void (*) (char *, int)) | |
0d06e24b | 581 | tcomplain); |
2bc416ba DJ |
582 | de_fault (to_lookup_symbol, |
583 | (int (*) (char *, CORE_ADDR *)) | |
0d06e24b | 584 | nosymbol); |
2bc416ba | 585 | de_fault (to_create_inferior, |
0d06e24b | 586 | maybe_kill_then_create_inferior); |
2bc416ba DJ |
587 | de_fault (to_post_startup_inferior, |
588 | (void (*) (ptid_t)) | |
0d06e24b | 589 | target_ignore); |
2bc416ba DJ |
590 | de_fault (to_acknowledge_created_inferior, |
591 | (void (*) (int)) | |
0d06e24b | 592 | target_ignore); |
2bc416ba DJ |
593 | de_fault (to_insert_fork_catchpoint, |
594 | (void (*) (int)) | |
0d06e24b | 595 | tcomplain); |
2bc416ba DJ |
596 | de_fault (to_remove_fork_catchpoint, |
597 | (int (*) (int)) | |
0d06e24b | 598 | tcomplain); |
2bc416ba DJ |
599 | de_fault (to_insert_vfork_catchpoint, |
600 | (void (*) (int)) | |
0d06e24b | 601 | tcomplain); |
2bc416ba DJ |
602 | de_fault (to_remove_vfork_catchpoint, |
603 | (int (*) (int)) | |
0d06e24b | 604 | tcomplain); |
2bc416ba DJ |
605 | de_fault (to_insert_exec_catchpoint, |
606 | (void (*) (int)) | |
0d06e24b | 607 | tcomplain); |
2bc416ba DJ |
608 | de_fault (to_remove_exec_catchpoint, |
609 | (int (*) (int)) | |
0d06e24b | 610 | tcomplain); |
2bc416ba DJ |
611 | de_fault (to_has_exited, |
612 | (int (*) (int, int, int *)) | |
0d06e24b | 613 | return_zero); |
2bc416ba DJ |
614 | de_fault (to_mourn_inferior, |
615 | (void (*) (void)) | |
0d06e24b | 616 | noprocess); |
2bc416ba | 617 | de_fault (to_can_run, |
0d06e24b | 618 | return_zero); |
2bc416ba DJ |
619 | de_fault (to_notice_signals, |
620 | (void (*) (ptid_t)) | |
0d06e24b | 621 | target_ignore); |
2bc416ba DJ |
622 | de_fault (to_thread_alive, |
623 | (int (*) (ptid_t)) | |
0d06e24b | 624 | return_zero); |
2bc416ba DJ |
625 | de_fault (to_find_new_threads, |
626 | (void (*) (void)) | |
0d06e24b | 627 | target_ignore); |
2bc416ba DJ |
628 | de_fault (to_extra_thread_info, |
629 | (char *(*) (struct thread_info *)) | |
0d06e24b | 630 | return_zero); |
2bc416ba DJ |
631 | de_fault (to_stop, |
632 | (void (*) (void)) | |
0d06e24b | 633 | target_ignore); |
cf7a04e8 | 634 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
635 | de_fault (to_rcmd, |
636 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 637 | tcomplain); |
2bc416ba DJ |
638 | de_fault (to_pid_to_exec_file, |
639 | (char *(*) (int)) | |
0d06e24b | 640 | return_zero); |
2bc416ba DJ |
641 | de_fault (to_can_async_p, |
642 | (int (*) (void)) | |
0d06e24b | 643 | return_zero); |
2bc416ba DJ |
644 | de_fault (to_is_async_p, |
645 | (int (*) (void)) | |
0d06e24b | 646 | return_zero); |
2bc416ba DJ |
647 | de_fault (to_async, |
648 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 649 | tcomplain); |
b84876c2 PA |
650 | de_fault (to_async_mask, |
651 | (int (*) (int)) | |
652 | return_one); | |
424163ea | 653 | current_target.to_read_description = NULL; |
c906108c | 654 | #undef de_fault |
c906108c | 655 | |
7998dfc3 AC |
656 | /* Finally, position the target-stack beneath the squashed |
657 | "current_target". That way code looking for a non-inherited | |
658 | target method can quickly and simply find it. */ | |
659 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
660 | |
661 | if (targetdebug) | |
662 | setup_target_debug (); | |
c906108c SS |
663 | } |
664 | ||
52bb452f DJ |
665 | /* Mark OPS as a running target. This reverses the effect |
666 | of target_mark_exited. */ | |
667 | ||
668 | void | |
669 | target_mark_running (struct target_ops *ops) | |
670 | { | |
671 | struct target_ops *t; | |
672 | ||
673 | for (t = target_stack; t != NULL; t = t->beneath) | |
674 | if (t == ops) | |
675 | break; | |
676 | if (t == NULL) | |
677 | internal_error (__FILE__, __LINE__, | |
678 | "Attempted to mark unpushed target \"%s\" as running", | |
679 | ops->to_shortname); | |
680 | ||
681 | ops->to_has_execution = 1; | |
682 | ops->to_has_all_memory = 1; | |
683 | ops->to_has_memory = 1; | |
684 | ops->to_has_stack = 1; | |
685 | ops->to_has_registers = 1; | |
686 | ||
687 | update_current_target (); | |
688 | } | |
689 | ||
690 | /* Mark OPS as a non-running target. This reverses the effect | |
691 | of target_mark_running. */ | |
692 | ||
693 | void | |
694 | target_mark_exited (struct target_ops *ops) | |
695 | { | |
696 | struct target_ops *t; | |
697 | ||
698 | for (t = target_stack; t != NULL; t = t->beneath) | |
699 | if (t == ops) | |
700 | break; | |
701 | if (t == NULL) | |
702 | internal_error (__FILE__, __LINE__, | |
703 | "Attempted to mark unpushed target \"%s\" as running", | |
704 | ops->to_shortname); | |
705 | ||
706 | ops->to_has_execution = 0; | |
707 | ops->to_has_all_memory = 0; | |
708 | ops->to_has_memory = 0; | |
709 | ops->to_has_stack = 0; | |
710 | ops->to_has_registers = 0; | |
711 | ||
712 | update_current_target (); | |
713 | } | |
714 | ||
c906108c SS |
715 | /* Push a new target type into the stack of the existing target accessors, |
716 | possibly superseding some of the existing accessors. | |
717 | ||
718 | Result is zero if the pushed target ended up on top of the stack, | |
719 | nonzero if at least one target is on top of it. | |
720 | ||
721 | Rather than allow an empty stack, we always have the dummy target at | |
722 | the bottom stratum, so we can call the function vectors without | |
723 | checking them. */ | |
724 | ||
725 | int | |
fba45db2 | 726 | push_target (struct target_ops *t) |
c906108c | 727 | { |
258b763a | 728 | struct target_ops **cur; |
c906108c SS |
729 | |
730 | /* Check magic number. If wrong, it probably means someone changed | |
731 | the struct definition, but not all the places that initialize one. */ | |
732 | if (t->to_magic != OPS_MAGIC) | |
733 | { | |
c5aa993b JM |
734 | fprintf_unfiltered (gdb_stderr, |
735 | "Magic number of %s target struct wrong\n", | |
736 | t->to_shortname); | |
e2e0b3e5 | 737 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
738 | } |
739 | ||
258b763a AC |
740 | /* Find the proper stratum to install this target in. */ |
741 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 742 | { |
258b763a | 743 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
744 | break; |
745 | } | |
746 | ||
258b763a | 747 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 748 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
749 | targets to CUR, and not just those at this stratum level. */ |
750 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
751 | { | |
752 | /* There's already something at this stratum level. Close it, | |
753 | and un-hook it from the stack. */ | |
754 | struct target_ops *tmp = (*cur); | |
755 | (*cur) = (*cur)->beneath; | |
756 | tmp->beneath = NULL; | |
f1c07ab0 | 757 | target_close (tmp, 0); |
258b763a | 758 | } |
c906108c SS |
759 | |
760 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
761 | t->beneath = (*cur); |
762 | (*cur) = t; | |
c906108c SS |
763 | |
764 | update_current_target (); | |
765 | ||
258b763a AC |
766 | /* Not on top? */ |
767 | return (t != target_stack); | |
c906108c SS |
768 | } |
769 | ||
2bc416ba | 770 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
771 | Return how many times it was removed (0 or 1). */ |
772 | ||
773 | int | |
fba45db2 | 774 | unpush_target (struct target_ops *t) |
c906108c | 775 | { |
258b763a AC |
776 | struct target_ops **cur; |
777 | struct target_ops *tmp; | |
c906108c | 778 | |
c906108c SS |
779 | /* Look for the specified target. Note that we assume that a target |
780 | can only occur once in the target stack. */ | |
781 | ||
258b763a AC |
782 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
783 | { | |
784 | if ((*cur) == t) | |
785 | break; | |
786 | } | |
c906108c | 787 | |
258b763a | 788 | if ((*cur) == NULL) |
c906108c SS |
789 | return 0; /* Didn't find target_ops, quit now */ |
790 | ||
5269965e AC |
791 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
792 | unconditional by moving it to before the above check that the | |
793 | target was in the target stack (something about "Change the way | |
794 | pushing and popping of targets work to support target overlays | |
795 | and inheritance"). This doesn't make much sense - only open | |
796 | targets should be closed. */ | |
797 | target_close (t, 0); | |
798 | ||
c906108c | 799 | /* Unchain the target */ |
258b763a AC |
800 | tmp = (*cur); |
801 | (*cur) = (*cur)->beneath; | |
802 | tmp->beneath = NULL; | |
c906108c SS |
803 | |
804 | update_current_target (); | |
c906108c SS |
805 | |
806 | return 1; | |
807 | } | |
808 | ||
809 | void | |
fba45db2 | 810 | pop_target (void) |
c906108c | 811 | { |
f1c07ab0 | 812 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 813 | if (unpush_target (target_stack) == 1) |
c906108c SS |
814 | return; |
815 | ||
c5aa993b JM |
816 | fprintf_unfiltered (gdb_stderr, |
817 | "pop_target couldn't find target %s\n", | |
818 | current_target.to_shortname); | |
e2e0b3e5 | 819 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
820 | } |
821 | ||
72f5cf0e | 822 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
823 | current thread's thread-local storage with offset OFFSET. */ |
824 | CORE_ADDR | |
825 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
826 | { | |
827 | volatile CORE_ADDR addr = 0; | |
828 | ||
829 | if (target_get_thread_local_address_p () | |
830 | && gdbarch_fetch_tls_load_module_address_p (current_gdbarch)) | |
831 | { | |
832 | ptid_t ptid = inferior_ptid; | |
833 | volatile struct gdb_exception ex; | |
834 | ||
835 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
836 | { | |
837 | CORE_ADDR lm_addr; | |
838 | ||
839 | /* Fetch the load module address for this objfile. */ | |
840 | lm_addr = gdbarch_fetch_tls_load_module_address (current_gdbarch, | |
841 | objfile); | |
842 | /* If it's 0, throw the appropriate exception. */ | |
843 | if (lm_addr == 0) | |
844 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
845 | _("TLS load module not found")); | |
846 | ||
847 | addr = target_get_thread_local_address (ptid, lm_addr, offset); | |
848 | } | |
849 | /* If an error occurred, print TLS related messages here. Otherwise, | |
850 | throw the error to some higher catcher. */ | |
851 | if (ex.reason < 0) | |
852 | { | |
853 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
854 | ||
855 | switch (ex.error) | |
856 | { | |
857 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
858 | error (_("Cannot find thread-local variables in this thread library.")); | |
859 | break; | |
860 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
861 | if (objfile_is_library) | |
862 | error (_("Cannot find shared library `%s' in dynamic" | |
863 | " linker's load module list"), objfile->name); | |
864 | else | |
865 | error (_("Cannot find executable file `%s' in dynamic" | |
866 | " linker's load module list"), objfile->name); | |
867 | break; | |
868 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
869 | if (objfile_is_library) | |
870 | error (_("The inferior has not yet allocated storage for" | |
871 | " thread-local variables in\n" | |
872 | "the shared library `%s'\n" | |
873 | "for %s"), | |
874 | objfile->name, target_pid_to_str (ptid)); | |
875 | else | |
876 | error (_("The inferior has not yet allocated storage for" | |
877 | " thread-local variables in\n" | |
878 | "the executable `%s'\n" | |
879 | "for %s"), | |
880 | objfile->name, target_pid_to_str (ptid)); | |
881 | break; | |
882 | case TLS_GENERIC_ERROR: | |
883 | if (objfile_is_library) | |
884 | error (_("Cannot find thread-local storage for %s, " | |
885 | "shared library %s:\n%s"), | |
886 | target_pid_to_str (ptid), | |
887 | objfile->name, ex.message); | |
888 | else | |
889 | error (_("Cannot find thread-local storage for %s, " | |
890 | "executable file %s:\n%s"), | |
891 | target_pid_to_str (ptid), | |
892 | objfile->name, ex.message); | |
893 | break; | |
894 | default: | |
895 | throw_exception (ex); | |
896 | break; | |
897 | } | |
898 | } | |
899 | } | |
900 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
901 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
902 | else | |
903 | error (_("Cannot find thread-local variables on this target")); | |
904 | ||
905 | return addr; | |
906 | } | |
907 | ||
c906108c SS |
908 | #undef MIN |
909 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
910 | ||
911 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
912 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
913 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
914 | is responsible for freeing it. Return the number of bytes successfully | |
915 | read. */ | |
916 | ||
917 | int | |
fba45db2 | 918 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
919 | { |
920 | int tlen, origlen, offset, i; | |
1b0ba102 | 921 | gdb_byte buf[4]; |
c906108c SS |
922 | int errcode = 0; |
923 | char *buffer; | |
924 | int buffer_allocated; | |
925 | char *bufptr; | |
926 | unsigned int nbytes_read = 0; | |
927 | ||
6217bf3e MS |
928 | gdb_assert (string); |
929 | ||
c906108c SS |
930 | /* Small for testing. */ |
931 | buffer_allocated = 4; | |
932 | buffer = xmalloc (buffer_allocated); | |
933 | bufptr = buffer; | |
934 | ||
935 | origlen = len; | |
936 | ||
937 | while (len > 0) | |
938 | { | |
939 | tlen = MIN (len, 4 - (memaddr & 3)); | |
940 | offset = memaddr & 3; | |
941 | ||
1b0ba102 | 942 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
943 | if (errcode != 0) |
944 | { | |
945 | /* The transfer request might have crossed the boundary to an | |
946 | unallocated region of memory. Retry the transfer, requesting | |
947 | a single byte. */ | |
948 | tlen = 1; | |
949 | offset = 0; | |
b8eb5af0 | 950 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
951 | if (errcode != 0) |
952 | goto done; | |
953 | } | |
954 | ||
955 | if (bufptr - buffer + tlen > buffer_allocated) | |
956 | { | |
957 | unsigned int bytes; | |
958 | bytes = bufptr - buffer; | |
959 | buffer_allocated *= 2; | |
960 | buffer = xrealloc (buffer, buffer_allocated); | |
961 | bufptr = buffer + bytes; | |
962 | } | |
963 | ||
964 | for (i = 0; i < tlen; i++) | |
965 | { | |
966 | *bufptr++ = buf[i + offset]; | |
967 | if (buf[i + offset] == '\000') | |
968 | { | |
969 | nbytes_read += i + 1; | |
970 | goto done; | |
971 | } | |
972 | } | |
973 | ||
974 | memaddr += tlen; | |
975 | len -= tlen; | |
976 | nbytes_read += tlen; | |
977 | } | |
c5aa993b | 978 | done: |
6217bf3e | 979 | *string = buffer; |
c906108c SS |
980 | if (errnop != NULL) |
981 | *errnop = errcode; | |
c906108c SS |
982 | return nbytes_read; |
983 | } | |
984 | ||
8db32d44 AC |
985 | /* Find a section containing ADDR. */ |
986 | struct section_table * | |
987 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
988 | { | |
989 | struct section_table *secp; | |
990 | for (secp = target->to_sections; | |
991 | secp < target->to_sections_end; | |
992 | secp++) | |
993 | { | |
994 | if (addr >= secp->addr && addr < secp->endaddr) | |
995 | return secp; | |
996 | } | |
997 | return NULL; | |
998 | } | |
999 | ||
cf7a04e8 DJ |
1000 | /* Perform a partial memory transfer. The arguments and return |
1001 | value are just as for target_xfer_partial. */ | |
1002 | ||
1003 | static LONGEST | |
1004 | memory_xfer_partial (struct target_ops *ops, void *readbuf, const void *writebuf, | |
1005 | ULONGEST memaddr, LONGEST len) | |
0779438d | 1006 | { |
cf7a04e8 DJ |
1007 | LONGEST res; |
1008 | int reg_len; | |
1009 | struct mem_region *region; | |
1010 | ||
1011 | /* Zero length requests are ok and require no work. */ | |
1012 | if (len == 0) | |
1013 | return 0; | |
1014 | ||
1015 | /* Try the executable file, if "trust-readonly-sections" is set. */ | |
1016 | if (readbuf != NULL && trust_readonly) | |
1017 | { | |
1018 | struct section_table *secp; | |
1019 | ||
1020 | secp = target_section_by_addr (ops, memaddr); | |
1021 | if (secp != NULL | |
1022 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1023 | & SEC_READONLY)) | |
1024 | return xfer_memory (memaddr, readbuf, len, 0, NULL, ops); | |
1025 | } | |
1026 | ||
98646950 UW |
1027 | /* Likewise for accesses to unmapped overlay sections. */ |
1028 | if (readbuf != NULL && overlay_debugging) | |
1029 | { | |
1030 | asection *section = find_pc_overlay (memaddr); | |
1031 | if (pc_in_unmapped_range (memaddr, section)) | |
1032 | return xfer_memory (memaddr, readbuf, len, 0, NULL, ops); | |
1033 | } | |
1034 | ||
cf7a04e8 DJ |
1035 | /* Try GDB's internal data cache. */ |
1036 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1037 | /* region->hi == 0 means there's no upper bound. */ |
1038 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1039 | reg_len = len; |
1040 | else | |
1041 | reg_len = region->hi - memaddr; | |
1042 | ||
1043 | switch (region->attrib.mode) | |
1044 | { | |
1045 | case MEM_RO: | |
1046 | if (writebuf != NULL) | |
1047 | return -1; | |
1048 | break; | |
1049 | ||
1050 | case MEM_WO: | |
1051 | if (readbuf != NULL) | |
1052 | return -1; | |
1053 | break; | |
a76d924d DJ |
1054 | |
1055 | case MEM_FLASH: | |
1056 | /* We only support writing to flash during "load" for now. */ | |
1057 | if (writebuf != NULL) | |
1058 | error (_("Writing to flash memory forbidden in this context")); | |
1059 | break; | |
4b5752d0 VP |
1060 | |
1061 | case MEM_NONE: | |
1062 | return -1; | |
cf7a04e8 DJ |
1063 | } |
1064 | ||
1065 | if (region->attrib.cache) | |
1066 | { | |
1067 | /* FIXME drow/2006-08-09: This call discards OPS, so the raw | |
1068 | memory request will start back at current_target. */ | |
1069 | if (readbuf != NULL) | |
1070 | res = dcache_xfer_memory (target_dcache, memaddr, readbuf, | |
1071 | reg_len, 0); | |
1072 | else | |
1073 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1074 | correctness dcache_xfer_memory should take readbuf and | |
1075 | writebuf. */ | |
1076 | res = dcache_xfer_memory (target_dcache, memaddr, | |
1077 | (void *) writebuf, | |
1078 | reg_len, 1); | |
1079 | if (res <= 0) | |
1080 | return -1; | |
1081 | else | |
8defab1a DJ |
1082 | { |
1083 | if (readbuf && !show_memory_breakpoints) | |
1084 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1085 | return res; | |
1086 | } | |
cf7a04e8 DJ |
1087 | } |
1088 | ||
1089 | /* If none of those methods found the memory we wanted, fall back | |
1090 | to a target partial transfer. Normally a single call to | |
1091 | to_xfer_partial is enough; if it doesn't recognize an object | |
1092 | it will call the to_xfer_partial of the next target down. | |
1093 | But for memory this won't do. Memory is the only target | |
1094 | object which can be read from more than one valid target. | |
1095 | A core file, for instance, could have some of memory but | |
1096 | delegate other bits to the target below it. So, we must | |
1097 | manually try all targets. */ | |
1098 | ||
1099 | do | |
1100 | { | |
1101 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1102 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1103 | if (res > 0) |
8defab1a | 1104 | break; |
cf7a04e8 | 1105 | |
5ad3a4ca DJ |
1106 | /* We want to continue past core files to executables, but not |
1107 | past a running target's memory. */ | |
1108 | if (ops->to_has_all_memory) | |
8defab1a | 1109 | break; |
5ad3a4ca | 1110 | |
cf7a04e8 DJ |
1111 | ops = ops->beneath; |
1112 | } | |
1113 | while (ops != NULL); | |
1114 | ||
8defab1a DJ |
1115 | if (readbuf && !show_memory_breakpoints) |
1116 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1117 | ||
cf7a04e8 DJ |
1118 | /* If we still haven't got anything, return the last error. We |
1119 | give up. */ | |
1120 | return res; | |
0779438d AC |
1121 | } |
1122 | ||
8defab1a DJ |
1123 | static void |
1124 | restore_show_memory_breakpoints (void *arg) | |
1125 | { | |
1126 | show_memory_breakpoints = (uintptr_t) arg; | |
1127 | } | |
1128 | ||
1129 | struct cleanup * | |
1130 | make_show_memory_breakpoints_cleanup (int show) | |
1131 | { | |
1132 | int current = show_memory_breakpoints; | |
1133 | show_memory_breakpoints = show; | |
1134 | ||
1135 | return make_cleanup (restore_show_memory_breakpoints, | |
1136 | (void *) (uintptr_t) current); | |
1137 | } | |
1138 | ||
27394598 AC |
1139 | static LONGEST |
1140 | target_xfer_partial (struct target_ops *ops, | |
1141 | enum target_object object, const char *annex, | |
1142 | void *readbuf, const void *writebuf, | |
1143 | ULONGEST offset, LONGEST len) | |
1144 | { | |
1145 | LONGEST retval; | |
1146 | ||
1147 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 DJ |
1148 | |
1149 | /* If this is a memory transfer, let the memory-specific code | |
1150 | have a look at it instead. Memory transfers are more | |
1151 | complicated. */ | |
1152 | if (object == TARGET_OBJECT_MEMORY) | |
1153 | retval = memory_xfer_partial (ops, readbuf, writebuf, offset, len); | |
1154 | else | |
1155 | { | |
1156 | enum target_object raw_object = object; | |
1157 | ||
1158 | /* If this is a raw memory transfer, request the normal | |
1159 | memory object from other layers. */ | |
1160 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1161 | raw_object = TARGET_OBJECT_MEMORY; | |
1162 | ||
1163 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1164 | writebuf, offset, len); | |
1165 | } | |
1166 | ||
27394598 AC |
1167 | if (targetdebug) |
1168 | { | |
1169 | const unsigned char *myaddr = NULL; | |
1170 | ||
1171 | fprintf_unfiltered (gdb_stdlog, | |
1172 | "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s", | |
1173 | ops->to_shortname, | |
1174 | (int) object, | |
1175 | (annex ? annex : "(null)"), | |
1176 | (long) readbuf, (long) writebuf, | |
1177 | paddr_nz (offset), paddr_d (len), paddr_d (retval)); | |
1178 | ||
1179 | if (readbuf) | |
1180 | myaddr = readbuf; | |
1181 | if (writebuf) | |
1182 | myaddr = writebuf; | |
1183 | if (retval > 0 && myaddr != NULL) | |
1184 | { | |
1185 | int i; | |
2bc416ba | 1186 | |
27394598 AC |
1187 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1188 | for (i = 0; i < retval; i++) | |
1189 | { | |
1190 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
1191 | { | |
1192 | if (targetdebug < 2 && i > 0) | |
1193 | { | |
1194 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1195 | break; | |
1196 | } | |
1197 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1198 | } | |
2bc416ba | 1199 | |
27394598 AC |
1200 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1201 | } | |
1202 | } | |
2bc416ba | 1203 | |
27394598 AC |
1204 | fputc_unfiltered ('\n', gdb_stdlog); |
1205 | } | |
1206 | return retval; | |
1207 | } | |
1208 | ||
c906108c SS |
1209 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1210 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1211 | if any error occurs. | |
1212 | ||
1213 | If an error occurs, no guarantee is made about the contents of the data at | |
1214 | MYADDR. In particular, the caller should not depend upon partial reads | |
1215 | filling the buffer with good data. There is no way for the caller to know | |
1216 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 DJ |
1217 | deal with partial reads should call target_read (which will retry until |
1218 | it makes no progress, and then return how much was transferred). */ | |
c906108c SS |
1219 | |
1220 | int | |
fc1a4b47 | 1221 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 1222 | { |
cf7a04e8 DJ |
1223 | if (target_read (¤t_target, TARGET_OBJECT_MEMORY, NULL, |
1224 | myaddr, memaddr, len) == len) | |
1225 | return 0; | |
0779438d | 1226 | else |
cf7a04e8 | 1227 | return EIO; |
c906108c SS |
1228 | } |
1229 | ||
c906108c | 1230 | int |
fc1a4b47 | 1231 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1232 | { |
cf7a04e8 DJ |
1233 | if (target_write (¤t_target, TARGET_OBJECT_MEMORY, NULL, |
1234 | myaddr, memaddr, len) == len) | |
1235 | return 0; | |
0779438d | 1236 | else |
cf7a04e8 | 1237 | return EIO; |
c906108c | 1238 | } |
c5aa993b | 1239 | |
fd79ecee DJ |
1240 | /* Fetch the target's memory map. */ |
1241 | ||
1242 | VEC(mem_region_s) * | |
1243 | target_memory_map (void) | |
1244 | { | |
1245 | VEC(mem_region_s) *result; | |
1246 | struct mem_region *last_one, *this_one; | |
1247 | int ix; | |
1248 | struct target_ops *t; | |
1249 | ||
1250 | if (targetdebug) | |
1251 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1252 | ||
1253 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1254 | if (t->to_memory_map != NULL) | |
1255 | break; | |
1256 | ||
1257 | if (t == NULL) | |
1258 | return NULL; | |
1259 | ||
1260 | result = t->to_memory_map (t); | |
1261 | if (result == NULL) | |
1262 | return NULL; | |
1263 | ||
1264 | qsort (VEC_address (mem_region_s, result), | |
1265 | VEC_length (mem_region_s, result), | |
1266 | sizeof (struct mem_region), mem_region_cmp); | |
1267 | ||
1268 | /* Check that regions do not overlap. Simultaneously assign | |
1269 | a numbering for the "mem" commands to use to refer to | |
1270 | each region. */ | |
1271 | last_one = NULL; | |
1272 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1273 | { | |
1274 | this_one->number = ix; | |
1275 | ||
1276 | if (last_one && last_one->hi > this_one->lo) | |
1277 | { | |
1278 | warning (_("Overlapping regions in memory map: ignoring")); | |
1279 | VEC_free (mem_region_s, result); | |
1280 | return NULL; | |
1281 | } | |
1282 | last_one = this_one; | |
1283 | } | |
1284 | ||
1285 | return result; | |
1286 | } | |
1287 | ||
a76d924d DJ |
1288 | void |
1289 | target_flash_erase (ULONGEST address, LONGEST length) | |
1290 | { | |
1291 | struct target_ops *t; | |
1292 | ||
1293 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1294 | if (t->to_flash_erase != NULL) | |
1295 | { | |
1296 | if (targetdebug) | |
1297 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1298 | paddr (address), phex (length, 0)); | |
8944021f DJ |
1299 | t->to_flash_erase (t, address, length); |
1300 | return; | |
a76d924d DJ |
1301 | } |
1302 | ||
1303 | tcomplain (); | |
1304 | } | |
1305 | ||
1306 | void | |
1307 | target_flash_done (void) | |
1308 | { | |
1309 | struct target_ops *t; | |
1310 | ||
1311 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1312 | if (t->to_flash_done != NULL) | |
1313 | { | |
1314 | if (targetdebug) | |
1315 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
8944021f DJ |
1316 | t->to_flash_done (t); |
1317 | return; | |
a76d924d DJ |
1318 | } |
1319 | ||
1320 | tcomplain (); | |
1321 | } | |
1322 | ||
4aa7a7f5 JJ |
1323 | #ifndef target_stopped_data_address_p |
1324 | int | |
1325 | target_stopped_data_address_p (struct target_ops *target) | |
1326 | { | |
aa869812 AC |
1327 | if (target->to_stopped_data_address |
1328 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero) | |
4aa7a7f5 | 1329 | return 0; |
aa869812 AC |
1330 | if (target->to_stopped_data_address == debug_to_stopped_data_address |
1331 | && (debug_target.to_stopped_data_address | |
1332 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero)) | |
1333 | return 0; | |
1334 | return 1; | |
4aa7a7f5 JJ |
1335 | } |
1336 | #endif | |
1337 | ||
920d2a44 AC |
1338 | static void |
1339 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1340 | struct cmd_list_element *c, const char *value) | |
1341 | { | |
1342 | fprintf_filtered (file, _("\ | |
1343 | Mode for reading from readonly sections is %s.\n"), | |
1344 | value); | |
1345 | } | |
3a11626d | 1346 | |
1e3ff5ad AC |
1347 | /* More generic transfers. */ |
1348 | ||
0088c768 | 1349 | static LONGEST |
8aa91c1e | 1350 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1351 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1352 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1353 | { |
1354 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1355 | && ops->deprecated_xfer_memory != NULL) |
1356 | /* If available, fall back to the target's | |
1357 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1358 | { |
4b8a223f | 1359 | int xfered = -1; |
0088c768 | 1360 | errno = 0; |
4b8a223f AC |
1361 | if (writebuf != NULL) |
1362 | { | |
1363 | void *buffer = xmalloc (len); | |
1364 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1365 | memcpy (buffer, writebuf, len); | |
c8e73a31 AC |
1366 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1367 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1368 | do_cleanups (cleanup); |
1369 | } | |
1370 | if (readbuf != NULL) | |
244e85c8 MS |
1371 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1372 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1373 | if (xfered > 0) |
1374 | return xfered; | |
1375 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1376 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1377 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1378 | return 0; |
1379 | else | |
1380 | return -1; | |
1381 | } | |
1382 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1383 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1384 | readbuf, writebuf, offset, len); | |
1385 | else | |
1386 | return -1; | |
1387 | } | |
1388 | ||
1389 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1390 | it does not need to handle memory specially; it just passes all | |
1391 | requests down the stack. */ | |
1392 | ||
1393 | static LONGEST | |
1394 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
1395 | const char *annex, gdb_byte *readbuf, | |
1396 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1397 | { | |
1398 | if (ops->beneath != NULL) | |
1399 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1400 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1401 | else |
1402 | return -1; | |
1403 | } | |
1404 | ||
1405 | /* Target vector read/write partial wrapper functions. | |
1406 | ||
1407 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1408 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1409 | easier. */ | |
1410 | ||
13547ab6 | 1411 | static LONGEST |
1e3ff5ad AC |
1412 | target_read_partial (struct target_ops *ops, |
1413 | enum target_object object, | |
1b0ba102 | 1414 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1415 | ULONGEST offset, LONGEST len) |
1416 | { | |
27394598 | 1417 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1418 | } |
1419 | ||
13547ab6 | 1420 | static LONGEST |
1e3ff5ad AC |
1421 | target_write_partial (struct target_ops *ops, |
1422 | enum target_object object, | |
1b0ba102 | 1423 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1424 | ULONGEST offset, LONGEST len) |
1425 | { | |
27394598 | 1426 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1427 | } |
1428 | ||
1429 | /* Wrappers to perform the full transfer. */ | |
1430 | LONGEST | |
1431 | target_read (struct target_ops *ops, | |
1432 | enum target_object object, | |
1b0ba102 | 1433 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1434 | ULONGEST offset, LONGEST len) |
1435 | { | |
1436 | LONGEST xfered = 0; | |
1437 | while (xfered < len) | |
1438 | { | |
0088c768 | 1439 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 1440 | (gdb_byte *) buf + xfered, |
0088c768 | 1441 | offset + xfered, len - xfered); |
1e3ff5ad | 1442 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
1443 | if (xfer == 0) |
1444 | return xfered; | |
1445 | if (xfer < 0) | |
0088c768 | 1446 | return -1; |
1e3ff5ad AC |
1447 | xfered += xfer; |
1448 | QUIT; | |
1449 | } | |
1450 | return len; | |
1451 | } | |
1452 | ||
d5086790 VP |
1453 | LONGEST |
1454 | target_read_until_error (struct target_ops *ops, | |
1455 | enum target_object object, | |
1456 | const char *annex, gdb_byte *buf, | |
1457 | ULONGEST offset, LONGEST len) | |
1458 | { | |
1459 | LONGEST xfered = 0; | |
1460 | while (xfered < len) | |
1461 | { | |
1462 | LONGEST xfer = target_read_partial (ops, object, annex, | |
1463 | (gdb_byte *) buf + xfered, | |
1464 | offset + xfered, len - xfered); | |
1465 | /* Call an observer, notifying them of the xfer progress? */ | |
1466 | if (xfer == 0) | |
1467 | return xfered; | |
1468 | if (xfer < 0) | |
1469 | { | |
1470 | /* We've got an error. Try to read in smaller blocks. */ | |
1471 | ULONGEST start = offset + xfered; | |
1472 | ULONGEST remaining = len - xfered; | |
1473 | ULONGEST half; | |
1474 | ||
1475 | /* If an attempt was made to read a random memory address, | |
1476 | it's likely that the very first byte is not accessible. | |
1477 | Try reading the first byte, to avoid doing log N tries | |
1478 | below. */ | |
1479 | xfer = target_read_partial (ops, object, annex, | |
1480 | (gdb_byte *) buf + xfered, start, 1); | |
1481 | if (xfer <= 0) | |
1482 | return xfered; | |
1483 | start += 1; | |
1484 | remaining -= 1; | |
1485 | half = remaining/2; | |
1486 | ||
1487 | while (half > 0) | |
1488 | { | |
1489 | xfer = target_read_partial (ops, object, annex, | |
1490 | (gdb_byte *) buf + xfered, | |
1491 | start, half); | |
1492 | if (xfer == 0) | |
1493 | return xfered; | |
1494 | if (xfer < 0) | |
1495 | { | |
1496 | remaining = half; | |
1497 | } | |
1498 | else | |
1499 | { | |
1500 | /* We have successfully read the first half. So, the | |
1501 | error must be in the second half. Adjust start and | |
1502 | remaining to point at the second half. */ | |
1503 | xfered += xfer; | |
1504 | start += xfer; | |
1505 | remaining -= xfer; | |
1506 | } | |
1507 | half = remaining/2; | |
1508 | } | |
1509 | ||
1510 | return xfered; | |
1511 | } | |
1512 | xfered += xfer; | |
1513 | QUIT; | |
1514 | } | |
1515 | return len; | |
1516 | } | |
1517 | ||
1518 | ||
cf7a04e8 DJ |
1519 | /* An alternative to target_write with progress callbacks. */ |
1520 | ||
1e3ff5ad | 1521 | LONGEST |
cf7a04e8 DJ |
1522 | target_write_with_progress (struct target_ops *ops, |
1523 | enum target_object object, | |
1524 | const char *annex, const gdb_byte *buf, | |
1525 | ULONGEST offset, LONGEST len, | |
1526 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
1527 | { |
1528 | LONGEST xfered = 0; | |
a76d924d DJ |
1529 | |
1530 | /* Give the progress callback a chance to set up. */ | |
1531 | if (progress) | |
1532 | (*progress) (0, baton); | |
1533 | ||
1e3ff5ad AC |
1534 | while (xfered < len) |
1535 | { | |
1536 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 1537 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 1538 | offset + xfered, len - xfered); |
cf7a04e8 | 1539 | |
13547ab6 DJ |
1540 | if (xfer == 0) |
1541 | return xfered; | |
1542 | if (xfer < 0) | |
0088c768 | 1543 | return -1; |
cf7a04e8 DJ |
1544 | |
1545 | if (progress) | |
1546 | (*progress) (xfer, baton); | |
1547 | ||
1e3ff5ad AC |
1548 | xfered += xfer; |
1549 | QUIT; | |
1550 | } | |
1551 | return len; | |
1552 | } | |
1553 | ||
cf7a04e8 DJ |
1554 | LONGEST |
1555 | target_write (struct target_ops *ops, | |
1556 | enum target_object object, | |
1557 | const char *annex, const gdb_byte *buf, | |
1558 | ULONGEST offset, LONGEST len) | |
1559 | { | |
1560 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1561 | NULL, NULL); | |
1562 | } | |
1563 | ||
159f81f3 DJ |
1564 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1565 | the size of the transferred data. PADDING additional bytes are | |
1566 | available in *BUF_P. This is a helper function for | |
1567 | target_read_alloc; see the declaration of that function for more | |
1568 | information. */ | |
13547ab6 | 1569 | |
159f81f3 DJ |
1570 | static LONGEST |
1571 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
1572 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
1573 | { |
1574 | size_t buf_alloc, buf_pos; | |
1575 | gdb_byte *buf; | |
1576 | LONGEST n; | |
1577 | ||
1578 | /* This function does not have a length parameter; it reads the | |
1579 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1580 | from one target and partly from another (in a different stratum, | |
1581 | e.g. a core file and an executable). Both reasons make it | |
1582 | unsuitable for reading memory. */ | |
1583 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1584 | ||
1585 | /* Start by reading up to 4K at a time. The target will throttle | |
1586 | this number down if necessary. */ | |
1587 | buf_alloc = 4096; | |
1588 | buf = xmalloc (buf_alloc); | |
1589 | buf_pos = 0; | |
1590 | while (1) | |
1591 | { | |
1592 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 1593 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
1594 | if (n < 0) |
1595 | { | |
1596 | /* An error occurred. */ | |
1597 | xfree (buf); | |
1598 | return -1; | |
1599 | } | |
1600 | else if (n == 0) | |
1601 | { | |
1602 | /* Read all there was. */ | |
1603 | if (buf_pos == 0) | |
1604 | xfree (buf); | |
1605 | else | |
1606 | *buf_p = buf; | |
1607 | return buf_pos; | |
1608 | } | |
1609 | ||
1610 | buf_pos += n; | |
1611 | ||
1612 | /* If the buffer is filling up, expand it. */ | |
1613 | if (buf_alloc < buf_pos * 2) | |
1614 | { | |
1615 | buf_alloc *= 2; | |
1616 | buf = xrealloc (buf, buf_alloc); | |
1617 | } | |
1618 | ||
1619 | QUIT; | |
1620 | } | |
1621 | } | |
1622 | ||
159f81f3 DJ |
1623 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1624 | the size of the transferred data. See the declaration in "target.h" | |
1625 | function for more information about the return value. */ | |
1626 | ||
1627 | LONGEST | |
1628 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
1629 | const char *annex, gdb_byte **buf_p) | |
1630 | { | |
1631 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
1632 | } | |
1633 | ||
1634 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
1635 | returned as a string, allocated using xmalloc. If an error occurs | |
1636 | or the transfer is unsupported, NULL is returned. Empty objects | |
1637 | are returned as allocated but empty strings. A warning is issued | |
1638 | if the result contains any embedded NUL bytes. */ | |
1639 | ||
1640 | char * | |
1641 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
1642 | const char *annex) | |
1643 | { | |
1644 | gdb_byte *buffer; | |
1645 | LONGEST transferred; | |
1646 | ||
1647 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); | |
1648 | ||
1649 | if (transferred < 0) | |
1650 | return NULL; | |
1651 | ||
1652 | if (transferred == 0) | |
1653 | return xstrdup (""); | |
1654 | ||
1655 | buffer[transferred] = 0; | |
1656 | if (strlen (buffer) < transferred) | |
1657 | warning (_("target object %d, annex %s, " | |
1658 | "contained unexpected null characters"), | |
1659 | (int) object, annex ? annex : "(none)"); | |
1660 | ||
1661 | return (char *) buffer; | |
1662 | } | |
1663 | ||
b6591e8b AC |
1664 | /* Memory transfer methods. */ |
1665 | ||
1666 | void | |
1b0ba102 | 1667 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1668 | LONGEST len) |
1669 | { | |
1670 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1671 | != len) | |
1672 | memory_error (EIO, addr); | |
1673 | } | |
1674 | ||
1675 | ULONGEST | |
1676 | get_target_memory_unsigned (struct target_ops *ops, | |
1677 | CORE_ADDR addr, int len) | |
1678 | { | |
f6519ebc | 1679 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1680 | |
1681 | gdb_assert (len <= sizeof (buf)); | |
1682 | get_target_memory (ops, addr, buf, len); | |
1683 | return extract_unsigned_integer (buf, len); | |
1684 | } | |
1685 | ||
c906108c | 1686 | static void |
fba45db2 | 1687 | target_info (char *args, int from_tty) |
c906108c SS |
1688 | { |
1689 | struct target_ops *t; | |
c906108c | 1690 | int has_all_mem = 0; |
c5aa993b | 1691 | |
c906108c | 1692 | if (symfile_objfile != NULL) |
a3f17187 | 1693 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 1694 | |
258b763a | 1695 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1696 | { |
c906108c SS |
1697 | if (!t->to_has_memory) |
1698 | continue; | |
1699 | ||
c5aa993b | 1700 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1701 | continue; |
1702 | if (has_all_mem) | |
a3f17187 | 1703 | printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n")); |
c5aa993b JM |
1704 | printf_unfiltered ("%s:\n", t->to_longname); |
1705 | (t->to_files_info) (t); | |
c906108c SS |
1706 | has_all_mem = t->to_has_all_memory; |
1707 | } | |
1708 | } | |
1709 | ||
fd79ecee DJ |
1710 | /* This function is called before any new inferior is created, e.g. |
1711 | by running a program, attaching, or connecting to a target. | |
1712 | It cleans up any state from previous invocations which might | |
1713 | change between runs. This is a subset of what target_preopen | |
1714 | resets (things which might change between targets). */ | |
1715 | ||
1716 | void | |
1717 | target_pre_inferior (int from_tty) | |
1718 | { | |
1719 | invalidate_target_mem_regions (); | |
424163ea DJ |
1720 | |
1721 | target_clear_description (); | |
fd79ecee DJ |
1722 | } |
1723 | ||
c906108c SS |
1724 | /* This is to be called by the open routine before it does |
1725 | anything. */ | |
1726 | ||
1727 | void | |
fba45db2 | 1728 | target_preopen (int from_tty) |
c906108c | 1729 | { |
c5aa993b | 1730 | dont_repeat (); |
c906108c SS |
1731 | |
1732 | if (target_has_execution) | |
c5aa993b | 1733 | { |
adf40b2e | 1734 | if (!from_tty |
e2e0b3e5 | 1735 | || query (_("A program is being debugged already. Kill it? "))) |
c5aa993b | 1736 | target_kill (); |
c906108c | 1737 | else |
8a3fe4f8 | 1738 | error (_("Program not killed.")); |
c906108c SS |
1739 | } |
1740 | ||
1741 | /* Calling target_kill may remove the target from the stack. But if | |
1742 | it doesn't (which seems like a win for UDI), remove it now. */ | |
1743 | ||
1744 | if (target_has_execution) | |
1745 | pop_target (); | |
fd79ecee DJ |
1746 | |
1747 | target_pre_inferior (from_tty); | |
c906108c SS |
1748 | } |
1749 | ||
1750 | /* Detach a target after doing deferred register stores. */ | |
1751 | ||
1752 | void | |
fba45db2 | 1753 | target_detach (char *args, int from_tty) |
c906108c | 1754 | { |
74960c60 VP |
1755 | /* If we're in breakpoints-always-inserted mode, have to |
1756 | remove them before detaching. */ | |
1757 | remove_breakpoints (); | |
1758 | ||
c906108c SS |
1759 | (current_target.to_detach) (args, from_tty); |
1760 | } | |
1761 | ||
6ad8ae5c DJ |
1762 | void |
1763 | target_disconnect (char *args, int from_tty) | |
1764 | { | |
597320e7 DJ |
1765 | struct target_ops *t; |
1766 | ||
74960c60 VP |
1767 | /* If we're in breakpoints-always-inserted mode, have to |
1768 | remove them before disconnecting. */ | |
1769 | remove_breakpoints (); | |
1770 | ||
597320e7 DJ |
1771 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
1772 | if (t->to_disconnect != NULL) | |
1773 | { | |
1774 | if (targetdebug) | |
1775 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1776 | args, from_tty); | |
1777 | t->to_disconnect (t, args, from_tty); | |
1778 | return; | |
1779 | } | |
1780 | ||
1781 | tcomplain (); | |
6ad8ae5c DJ |
1782 | } |
1783 | ||
e1ac3328 VP |
1784 | void |
1785 | target_resume (ptid_t ptid, int step, enum target_signal signal) | |
1786 | { | |
1787 | dcache_invalidate (target_dcache); | |
1788 | (*current_target.to_resume) (ptid, step, signal); | |
1789 | set_running (ptid, 1); | |
1790 | ||
1791 | } | |
ee057212 DJ |
1792 | /* Look through the list of possible targets for a target that can |
1793 | follow forks. */ | |
1794 | ||
1795 | int | |
1796 | target_follow_fork (int follow_child) | |
1797 | { | |
1798 | struct target_ops *t; | |
1799 | ||
1800 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1801 | { | |
1802 | if (t->to_follow_fork != NULL) | |
1803 | { | |
1804 | int retval = t->to_follow_fork (t, follow_child); | |
1805 | if (targetdebug) | |
1806 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
1807 | follow_child, retval); | |
1808 | return retval; | |
1809 | } | |
1810 | } | |
1811 | ||
1812 | /* Some target returned a fork event, but did not know how to follow it. */ | |
1813 | internal_error (__FILE__, __LINE__, | |
1814 | "could not find a target to follow fork"); | |
1815 | } | |
1816 | ||
424163ea DJ |
1817 | /* Look for a target which can describe architectural features, starting |
1818 | from TARGET. If we find one, return its description. */ | |
1819 | ||
1820 | const struct target_desc * | |
1821 | target_read_description (struct target_ops *target) | |
1822 | { | |
1823 | struct target_ops *t; | |
1824 | ||
1825 | for (t = target; t != NULL; t = t->beneath) | |
1826 | if (t->to_read_description != NULL) | |
1827 | { | |
1828 | const struct target_desc *tdesc; | |
1829 | ||
1830 | tdesc = t->to_read_description (t); | |
1831 | if (tdesc) | |
1832 | return tdesc; | |
1833 | } | |
1834 | ||
1835 | return NULL; | |
1836 | } | |
1837 | ||
08388c79 DE |
1838 | /* The default implementation of to_search_memory. |
1839 | This implements a basic search of memory, reading target memory and | |
1840 | performing the search here (as opposed to performing the search in on the | |
1841 | target side with, for example, gdbserver). */ | |
1842 | ||
1843 | int | |
1844 | simple_search_memory (struct target_ops *ops, | |
1845 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
1846 | const gdb_byte *pattern, ULONGEST pattern_len, | |
1847 | CORE_ADDR *found_addrp) | |
1848 | { | |
1849 | /* NOTE: also defined in find.c testcase. */ | |
1850 | #define SEARCH_CHUNK_SIZE 16000 | |
1851 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
1852 | /* Buffer to hold memory contents for searching. */ | |
1853 | gdb_byte *search_buf; | |
1854 | unsigned search_buf_size; | |
1855 | struct cleanup *old_cleanups; | |
1856 | ||
1857 | search_buf_size = chunk_size + pattern_len - 1; | |
1858 | ||
1859 | /* No point in trying to allocate a buffer larger than the search space. */ | |
1860 | if (search_space_len < search_buf_size) | |
1861 | search_buf_size = search_space_len; | |
1862 | ||
1863 | search_buf = malloc (search_buf_size); | |
1864 | if (search_buf == NULL) | |
5e1471f5 | 1865 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
1866 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
1867 | ||
1868 | /* Prime the search buffer. */ | |
1869 | ||
1870 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1871 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
1872 | { | |
5e1471f5 | 1873 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
1874 | hex_string (start_addr)); |
1875 | do_cleanups (old_cleanups); | |
1876 | return -1; | |
1877 | } | |
1878 | ||
1879 | /* Perform the search. | |
1880 | ||
1881 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
1882 | When we've scanned N bytes we copy the trailing bytes to the start and | |
1883 | read in another N bytes. */ | |
1884 | ||
1885 | while (search_space_len >= pattern_len) | |
1886 | { | |
1887 | gdb_byte *found_ptr; | |
1888 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
1889 | ||
1890 | found_ptr = memmem (search_buf, nr_search_bytes, | |
1891 | pattern, pattern_len); | |
1892 | ||
1893 | if (found_ptr != NULL) | |
1894 | { | |
1895 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
1896 | *found_addrp = found_addr; | |
1897 | do_cleanups (old_cleanups); | |
1898 | return 1; | |
1899 | } | |
1900 | ||
1901 | /* Not found in this chunk, skip to next chunk. */ | |
1902 | ||
1903 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
1904 | if (search_space_len >= chunk_size) | |
1905 | search_space_len -= chunk_size; | |
1906 | else | |
1907 | search_space_len = 0; | |
1908 | ||
1909 | if (search_space_len >= pattern_len) | |
1910 | { | |
1911 | unsigned keep_len = search_buf_size - chunk_size; | |
1912 | CORE_ADDR read_addr = start_addr + keep_len; | |
1913 | int nr_to_read; | |
1914 | ||
1915 | /* Copy the trailing part of the previous iteration to the front | |
1916 | of the buffer for the next iteration. */ | |
1917 | gdb_assert (keep_len == pattern_len - 1); | |
1918 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
1919 | ||
1920 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
1921 | ||
1922 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1923 | search_buf + keep_len, read_addr, | |
1924 | nr_to_read) != nr_to_read) | |
1925 | { | |
5e1471f5 | 1926 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
1927 | hex_string (read_addr)); |
1928 | do_cleanups (old_cleanups); | |
1929 | return -1; | |
1930 | } | |
1931 | ||
1932 | start_addr += chunk_size; | |
1933 | } | |
1934 | } | |
1935 | ||
1936 | /* Not found. */ | |
1937 | ||
1938 | do_cleanups (old_cleanups); | |
1939 | return 0; | |
1940 | } | |
1941 | ||
1942 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
1943 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
1944 | ||
1945 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
1946 | requiring halting of the search (e.g. memory read error). | |
1947 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
1948 | ||
1949 | int | |
1950 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
1951 | const gdb_byte *pattern, ULONGEST pattern_len, | |
1952 | CORE_ADDR *found_addrp) | |
1953 | { | |
1954 | struct target_ops *t; | |
1955 | int found; | |
1956 | ||
1957 | /* We don't use INHERIT to set current_target.to_search_memory, | |
1958 | so we have to scan the target stack and handle targetdebug | |
1959 | ourselves. */ | |
1960 | ||
1961 | if (targetdebug) | |
1962 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
1963 | hex_string (start_addr)); | |
1964 | ||
1965 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1966 | if (t->to_search_memory != NULL) | |
1967 | break; | |
1968 | ||
1969 | if (t != NULL) | |
1970 | { | |
1971 | found = t->to_search_memory (t, start_addr, search_space_len, | |
1972 | pattern, pattern_len, found_addrp); | |
1973 | } | |
1974 | else | |
1975 | { | |
1976 | /* If a special version of to_search_memory isn't available, use the | |
1977 | simple version. */ | |
1978 | found = simple_search_memory (¤t_target, | |
1979 | start_addr, search_space_len, | |
1980 | pattern, pattern_len, found_addrp); | |
1981 | } | |
1982 | ||
1983 | if (targetdebug) | |
1984 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
1985 | ||
1986 | return found; | |
1987 | } | |
1988 | ||
8edfe269 DJ |
1989 | /* Look through the currently pushed targets. If none of them will |
1990 | be able to restart the currently running process, issue an error | |
1991 | message. */ | |
1992 | ||
1993 | void | |
1994 | target_require_runnable (void) | |
1995 | { | |
1996 | struct target_ops *t; | |
1997 | ||
1998 | for (t = target_stack; t != NULL; t = t->beneath) | |
1999 | { | |
2000 | /* If this target knows how to create a new program, then | |
2001 | assume we will still be able to after killing the current | |
2002 | one. Either killing and mourning will not pop T, or else | |
2003 | find_default_run_target will find it again. */ | |
2004 | if (t->to_create_inferior != NULL) | |
2005 | return; | |
2006 | ||
2007 | /* Do not worry about thread_stratum targets that can not | |
2008 | create inferiors. Assume they will be pushed again if | |
2009 | necessary, and continue to the process_stratum. */ | |
2010 | if (t->to_stratum == thread_stratum) | |
2011 | continue; | |
2012 | ||
2013 | error (_("\ | |
2014 | The \"%s\" target does not support \"run\". Try \"help target\" or \"continue\"."), | |
2015 | t->to_shortname); | |
2016 | } | |
2017 | ||
2018 | /* This function is only called if the target is running. In that | |
2019 | case there should have been a process_stratum target and it | |
2020 | should either know how to create inferiors, or not... */ | |
2021 | internal_error (__FILE__, __LINE__, "No targets found"); | |
2022 | } | |
2023 | ||
c906108c SS |
2024 | /* Look through the list of possible targets for a target that can |
2025 | execute a run or attach command without any other data. This is | |
2026 | used to locate the default process stratum. | |
2027 | ||
5f667f2d PA |
2028 | If DO_MESG is not NULL, the result is always valid (error() is |
2029 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2030 | |
2031 | static struct target_ops * | |
fba45db2 | 2032 | find_default_run_target (char *do_mesg) |
c906108c SS |
2033 | { |
2034 | struct target_ops **t; | |
2035 | struct target_ops *runable = NULL; | |
2036 | int count; | |
2037 | ||
2038 | count = 0; | |
2039 | ||
2040 | for (t = target_structs; t < target_structs + target_struct_size; | |
2041 | ++t) | |
2042 | { | |
c5aa993b | 2043 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2044 | { |
2045 | runable = *t; | |
2046 | ++count; | |
2047 | } | |
2048 | } | |
2049 | ||
2050 | if (count != 1) | |
5f667f2d PA |
2051 | { |
2052 | if (do_mesg) | |
2053 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2054 | else | |
2055 | return NULL; | |
2056 | } | |
c906108c SS |
2057 | |
2058 | return runable; | |
2059 | } | |
2060 | ||
2061 | void | |
fba45db2 | 2062 | find_default_attach (char *args, int from_tty) |
c906108c SS |
2063 | { |
2064 | struct target_ops *t; | |
2065 | ||
c5aa993b | 2066 | t = find_default_run_target ("attach"); |
c906108c SS |
2067 | (t->to_attach) (args, from_tty); |
2068 | return; | |
2069 | } | |
2070 | ||
c906108c | 2071 | void |
c27cda74 AC |
2072 | find_default_create_inferior (char *exec_file, char *allargs, char **env, |
2073 | int from_tty) | |
c906108c SS |
2074 | { |
2075 | struct target_ops *t; | |
2076 | ||
c5aa993b | 2077 | t = find_default_run_target ("run"); |
c27cda74 | 2078 | (t->to_create_inferior) (exec_file, allargs, env, from_tty); |
c906108c SS |
2079 | return; |
2080 | } | |
2081 | ||
b84876c2 PA |
2082 | int |
2083 | find_default_can_async_p (void) | |
2084 | { | |
2085 | struct target_ops *t; | |
2086 | ||
5f667f2d PA |
2087 | /* This may be called before the target is pushed on the stack; |
2088 | look for the default process stratum. If there's none, gdb isn't | |
2089 | configured with a native debugger, and target remote isn't | |
2090 | connected yet. */ | |
2091 | t = find_default_run_target (NULL); | |
2092 | if (t && t->to_can_async_p) | |
b84876c2 PA |
2093 | return (t->to_can_async_p) (); |
2094 | return 0; | |
2095 | } | |
2096 | ||
2097 | int | |
2098 | find_default_is_async_p (void) | |
2099 | { | |
2100 | struct target_ops *t; | |
2101 | ||
5f667f2d PA |
2102 | /* This may be called before the target is pushed on the stack; |
2103 | look for the default process stratum. If there's none, gdb isn't | |
2104 | configured with a native debugger, and target remote isn't | |
2105 | connected yet. */ | |
2106 | t = find_default_run_target (NULL); | |
2107 | if (t && t->to_is_async_p) | |
b84876c2 PA |
2108 | return (t->to_is_async_p) (); |
2109 | return 0; | |
2110 | } | |
2111 | ||
e0d24f8d WZ |
2112 | static int |
2113 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2114 | { | |
2a3cdf79 | 2115 | return (len <= TYPE_LENGTH (builtin_type_void_data_ptr)); |
ccaa32c7 GS |
2116 | } |
2117 | ||
5009afc5 AS |
2118 | static int |
2119 | default_watchpoint_addr_within_range (struct target_ops *target, | |
2120 | CORE_ADDR addr, | |
2121 | CORE_ADDR start, int length) | |
2122 | { | |
2123 | return addr >= start && addr < start + length; | |
2124 | } | |
2125 | ||
c906108c | 2126 | static int |
fba45db2 | 2127 | return_zero (void) |
c906108c SS |
2128 | { |
2129 | return 0; | |
2130 | } | |
2131 | ||
2132 | static int | |
fba45db2 | 2133 | return_one (void) |
c906108c SS |
2134 | { |
2135 | return 1; | |
2136 | } | |
2137 | ||
ccaa32c7 GS |
2138 | static int |
2139 | return_minus_one (void) | |
2140 | { | |
2141 | return -1; | |
2142 | } | |
2143 | ||
6426a772 JM |
2144 | /* |
2145 | * Resize the to_sections pointer. Also make sure that anyone that | |
2146 | * was holding on to an old value of it gets updated. | |
2147 | * Returns the old size. | |
2148 | */ | |
2149 | ||
2150 | int | |
2151 | target_resize_to_sections (struct target_ops *target, int num_added) | |
2152 | { | |
2153 | struct target_ops **t; | |
2154 | struct section_table *old_value; | |
2155 | int old_count; | |
2156 | ||
2157 | old_value = target->to_sections; | |
2158 | ||
2159 | if (target->to_sections) | |
2160 | { | |
2161 | old_count = target->to_sections_end - target->to_sections; | |
2162 | target->to_sections = (struct section_table *) | |
2163 | xrealloc ((char *) target->to_sections, | |
2164 | (sizeof (struct section_table)) * (num_added + old_count)); | |
2165 | } | |
2166 | else | |
2167 | { | |
2168 | old_count = 0; | |
2169 | target->to_sections = (struct section_table *) | |
2170 | xmalloc ((sizeof (struct section_table)) * num_added); | |
2171 | } | |
2172 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
2173 | ||
2174 | /* Check to see if anyone else was pointing to this structure. | |
2175 | If old_value was null, then no one was. */ | |
2bc416ba | 2176 | |
6426a772 JM |
2177 | if (old_value) |
2178 | { | |
2179 | for (t = target_structs; t < target_structs + target_struct_size; | |
2180 | ++t) | |
2181 | { | |
2182 | if ((*t)->to_sections == old_value) | |
2183 | { | |
2184 | (*t)->to_sections = target->to_sections; | |
2185 | (*t)->to_sections_end = target->to_sections_end; | |
2186 | } | |
2187 | } | |
e354df01 NW |
2188 | /* There is a flattened view of the target stack in current_target, |
2189 | so its to_sections pointer might also need updating. */ | |
2190 | if (current_target.to_sections == old_value) | |
2191 | { | |
2192 | current_target.to_sections = target->to_sections; | |
2193 | current_target.to_sections_end = target->to_sections_end; | |
2194 | } | |
6426a772 | 2195 | } |
2bc416ba | 2196 | |
6426a772 JM |
2197 | return old_count; |
2198 | ||
2199 | } | |
2200 | ||
07cd4b97 JB |
2201 | /* Remove all target sections taken from ABFD. |
2202 | ||
2203 | Scan the current target stack for targets whose section tables | |
2204 | refer to sections from BFD, and remove those sections. We use this | |
2205 | when we notice that the inferior has unloaded a shared object, for | |
2206 | example. */ | |
2207 | void | |
2208 | remove_target_sections (bfd *abfd) | |
2209 | { | |
2210 | struct target_ops **t; | |
2211 | ||
2212 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
2213 | { | |
2214 | struct section_table *src, *dest; | |
2215 | ||
2216 | dest = (*t)->to_sections; | |
2217 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
2218 | if (src->bfd != abfd) | |
2219 | { | |
2220 | /* Keep this section. */ | |
2221 | if (dest < src) *dest = *src; | |
2222 | dest++; | |
2223 | } | |
2224 | ||
2225 | /* If we've dropped any sections, resize the section table. */ | |
2226 | if (dest < src) | |
2227 | target_resize_to_sections (*t, dest - src); | |
2228 | } | |
2229 | } | |
2230 | ||
2231 | ||
2232 | ||
2233 | ||
7a292a7a SS |
2234 | /* Find a single runnable target in the stack and return it. If for |
2235 | some reason there is more than one, return NULL. */ | |
2236 | ||
2237 | struct target_ops * | |
fba45db2 | 2238 | find_run_target (void) |
7a292a7a SS |
2239 | { |
2240 | struct target_ops **t; | |
2241 | struct target_ops *runable = NULL; | |
2242 | int count; | |
c5aa993b | 2243 | |
7a292a7a | 2244 | count = 0; |
c5aa993b | 2245 | |
7a292a7a SS |
2246 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
2247 | { | |
c5aa993b | 2248 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
2249 | { |
2250 | runable = *t; | |
2251 | ++count; | |
2252 | } | |
2253 | } | |
c5aa993b | 2254 | |
7a292a7a SS |
2255 | return (count == 1 ? runable : NULL); |
2256 | } | |
2257 | ||
ed9a39eb JM |
2258 | /* Find a single core_stratum target in the list of targets and return it. |
2259 | If for some reason there is more than one, return NULL. */ | |
2260 | ||
c906108c | 2261 | struct target_ops * |
fba45db2 | 2262 | find_core_target (void) |
c906108c SS |
2263 | { |
2264 | struct target_ops **t; | |
2265 | struct target_ops *runable = NULL; | |
2266 | int count; | |
c5aa993b | 2267 | |
c906108c | 2268 | count = 0; |
c5aa993b | 2269 | |
c906108c SS |
2270 | for (t = target_structs; t < target_structs + target_struct_size; |
2271 | ++t) | |
2272 | { | |
2273 | if ((*t)->to_stratum == core_stratum) | |
2274 | { | |
2275 | runable = *t; | |
2276 | ++count; | |
2277 | } | |
2278 | } | |
c5aa993b JM |
2279 | |
2280 | return (count == 1 ? runable : NULL); | |
c906108c | 2281 | } |
ed9a39eb JM |
2282 | |
2283 | /* | |
2284 | * Find the next target down the stack from the specified target. | |
2285 | */ | |
2286 | ||
2287 | struct target_ops * | |
fba45db2 | 2288 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 2289 | { |
258b763a | 2290 | return t->beneath; |
ed9a39eb JM |
2291 | } |
2292 | ||
c906108c SS |
2293 | \f |
2294 | /* The inferior process has died. Long live the inferior! */ | |
2295 | ||
2296 | void | |
fba45db2 | 2297 | generic_mourn_inferior (void) |
c906108c SS |
2298 | { |
2299 | extern int show_breakpoint_hit_counts; | |
2300 | ||
39f77062 | 2301 | inferior_ptid = null_ptid; |
c906108c SS |
2302 | attach_flag = 0; |
2303 | breakpoint_init_inferior (inf_exited); | |
2304 | registers_changed (); | |
2305 | ||
c906108c SS |
2306 | reopen_exec_file (); |
2307 | reinit_frame_cache (); | |
2308 | ||
2309 | /* It is confusing to the user for ignore counts to stick around | |
2310 | from previous runs of the inferior. So clear them. */ | |
2311 | /* However, it is more confusing for the ignore counts to disappear when | |
2312 | using hit counts. So don't clear them if we're counting hits. */ | |
2313 | if (!show_breakpoint_hit_counts) | |
2314 | breakpoint_clear_ignore_counts (); | |
c5b739b5 | 2315 | |
9a4105ab AC |
2316 | if (deprecated_detach_hook) |
2317 | deprecated_detach_hook (); | |
c906108c SS |
2318 | } |
2319 | \f | |
8807d78b | 2320 | /* Helper function for child_wait and the derivatives of child_wait. |
c906108c SS |
2321 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our |
2322 | translation of that in OURSTATUS. */ | |
2323 | void | |
fba45db2 | 2324 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c | 2325 | { |
c906108c SS |
2326 | if (WIFEXITED (hoststatus)) |
2327 | { | |
2328 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
2329 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
2330 | } | |
2331 | else if (!WIFSTOPPED (hoststatus)) | |
2332 | { | |
2333 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
2334 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
2335 | } | |
2336 | else | |
2337 | { | |
2338 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
2339 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
2340 | } | |
2341 | } | |
2342 | \f | |
c906108c | 2343 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 2344 | int (*target_activity_function) (void); |
c906108c SS |
2345 | int target_activity_fd; |
2346 | \f | |
fd0a2a6f MK |
2347 | /* Convert a normal process ID to a string. Returns the string in a |
2348 | static buffer. */ | |
c906108c SS |
2349 | |
2350 | char * | |
39f77062 | 2351 | normal_pid_to_str (ptid_t ptid) |
c906108c | 2352 | { |
fd0a2a6f | 2353 | static char buf[32]; |
c906108c | 2354 | |
5fff8fc0 | 2355 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
2356 | return buf; |
2357 | } | |
2358 | ||
be4d1333 | 2359 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
2360 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
2361 | { | |
8a3fe4f8 | 2362 | error (_("No target.")); |
be4d1333 MS |
2363 | return 0; |
2364 | } | |
2365 | ||
2366 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
2367 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
2368 | { | |
8a3fe4f8 | 2369 | error (_("No target.")); |
be4d1333 MS |
2370 | return NULL; |
2371 | } | |
2372 | ||
c906108c SS |
2373 | /* Set up the handful of non-empty slots needed by the dummy target |
2374 | vector. */ | |
2375 | ||
2376 | static void | |
fba45db2 | 2377 | init_dummy_target (void) |
c906108c SS |
2378 | { |
2379 | dummy_target.to_shortname = "None"; | |
2380 | dummy_target.to_longname = "None"; | |
2381 | dummy_target.to_doc = ""; | |
2382 | dummy_target.to_attach = find_default_attach; | |
c906108c | 2383 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
2384 | dummy_target.to_can_async_p = find_default_can_async_p; |
2385 | dummy_target.to_is_async_p = find_default_is_async_p; | |
ed9a39eb | 2386 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 2387 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
2388 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
2389 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 2390 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
2391 | dummy_target.to_magic = OPS_MAGIC; |
2392 | } | |
c906108c | 2393 | \f |
c906108c | 2394 | static void |
fba45db2 | 2395 | debug_to_open (char *args, int from_tty) |
c906108c SS |
2396 | { |
2397 | debug_target.to_open (args, from_tty); | |
2398 | ||
96baa820 | 2399 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
2400 | } |
2401 | ||
2402 | static void | |
fba45db2 | 2403 | debug_to_close (int quitting) |
c906108c | 2404 | { |
f1c07ab0 | 2405 | target_close (&debug_target, quitting); |
96baa820 | 2406 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
2407 | } |
2408 | ||
f1c07ab0 AC |
2409 | void |
2410 | target_close (struct target_ops *targ, int quitting) | |
2411 | { | |
2412 | if (targ->to_xclose != NULL) | |
2413 | targ->to_xclose (targ, quitting); | |
2414 | else if (targ->to_close != NULL) | |
2415 | targ->to_close (quitting); | |
2416 | } | |
2417 | ||
c906108c | 2418 | static void |
fba45db2 | 2419 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
2420 | { |
2421 | debug_target.to_attach (args, from_tty); | |
2422 | ||
96baa820 | 2423 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
2424 | } |
2425 | ||
2426 | ||
2427 | static void | |
fba45db2 | 2428 | debug_to_post_attach (int pid) |
c906108c SS |
2429 | { |
2430 | debug_target.to_post_attach (pid); | |
2431 | ||
96baa820 | 2432 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
2433 | } |
2434 | ||
c906108c | 2435 | static void |
fba45db2 | 2436 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
2437 | { |
2438 | debug_target.to_detach (args, from_tty); | |
2439 | ||
96baa820 | 2440 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
2441 | } |
2442 | ||
c906108c | 2443 | static void |
39f77062 | 2444 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 2445 | { |
39f77062 | 2446 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 2447 | |
39f77062 | 2448 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
2449 | step ? "step" : "continue", |
2450 | target_signal_to_name (siggnal)); | |
2451 | } | |
2452 | ||
39f77062 KB |
2453 | static ptid_t |
2454 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 2455 | { |
39f77062 | 2456 | ptid_t retval; |
c906108c | 2457 | |
39f77062 | 2458 | retval = debug_target.to_wait (ptid, status); |
c906108c | 2459 | |
96baa820 | 2460 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
2461 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
2462 | PIDGET (retval)); | |
96baa820 | 2463 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
2464 | switch (status->kind) |
2465 | { | |
2466 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 2467 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
2468 | status->value.integer); |
2469 | break; | |
2470 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 2471 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
2472 | target_signal_to_name (status->value.sig)); |
2473 | break; | |
2474 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 2475 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
2476 | target_signal_to_name (status->value.sig)); |
2477 | break; | |
2478 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 2479 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
2480 | break; |
2481 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 2482 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
2483 | break; |
2484 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 2485 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
2486 | break; |
2487 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 2488 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
2489 | break; |
2490 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 2491 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
2492 | break; |
2493 | default: | |
96baa820 | 2494 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
2495 | break; |
2496 | } | |
2497 | ||
2498 | return retval; | |
2499 | } | |
2500 | ||
bf0c5130 | 2501 | static void |
56be3814 UW |
2502 | debug_print_register (const char * func, |
2503 | struct regcache *regcache, int regno) | |
bf0c5130 | 2504 | { |
f8d29908 | 2505 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
bf0c5130 | 2506 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 UW |
2507 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
2508 | + gdbarch_num_pseudo_regs (gdbarch) | |
2509 | && gdbarch_register_name (gdbarch, regno) != NULL | |
2510 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
2511 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
2512 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
2513 | else |
2514 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
2515 | if (regno >= 0) | |
2516 | { | |
f8d29908 | 2517 | int i, size = register_size (gdbarch, regno); |
d9d9c31f | 2518 | unsigned char buf[MAX_REGISTER_SIZE]; |
56be3814 | 2519 | regcache_cooked_read (regcache, regno, buf); |
bf0c5130 | 2520 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 2521 | for (i = 0; i < size; i++) |
bf0c5130 AC |
2522 | { |
2523 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
2524 | } | |
81c4a259 | 2525 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 2526 | { |
81c4a259 | 2527 | ULONGEST val = extract_unsigned_integer (buf, size); |
bf0c5130 | 2528 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", |
81c4a259 | 2529 | paddr_nz (val), paddr_d (val)); |
bf0c5130 AC |
2530 | } |
2531 | } | |
2532 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2533 | } | |
2534 | ||
c906108c | 2535 | static void |
56be3814 | 2536 | debug_to_fetch_registers (struct regcache *regcache, int regno) |
c906108c | 2537 | { |
56be3814 UW |
2538 | debug_target.to_fetch_registers (regcache, regno); |
2539 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
2540 | } |
2541 | ||
2542 | static void | |
56be3814 | 2543 | debug_to_store_registers (struct regcache *regcache, int regno) |
c906108c | 2544 | { |
56be3814 UW |
2545 | debug_target.to_store_registers (regcache, regno); |
2546 | debug_print_register ("target_store_registers", regcache, regno); | |
bf0c5130 | 2547 | fprintf_unfiltered (gdb_stdlog, "\n"); |
c906108c SS |
2548 | } |
2549 | ||
2550 | static void | |
316f2060 | 2551 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 2552 | { |
316f2060 | 2553 | debug_target.to_prepare_to_store (regcache); |
c906108c | 2554 | |
96baa820 | 2555 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
2556 | } |
2557 | ||
2558 | static int | |
961cb7b5 | 2559 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
2560 | int write, struct mem_attrib *attrib, |
2561 | struct target_ops *target) | |
c906108c SS |
2562 | { |
2563 | int retval; | |
2564 | ||
c8e73a31 AC |
2565 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
2566 | attrib, target); | |
c906108c | 2567 | |
96baa820 | 2568 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2569 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 2570 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
2571 | len, write ? "write" : "read", retval); |
2572 | ||
c906108c SS |
2573 | if (retval > 0) |
2574 | { | |
2575 | int i; | |
2576 | ||
96baa820 | 2577 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
2578 | for (i = 0; i < retval; i++) |
2579 | { | |
2580 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
333dabeb DJ |
2581 | { |
2582 | if (targetdebug < 2 && i > 0) | |
2583 | { | |
2584 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
2585 | break; | |
2586 | } | |
2587 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2588 | } | |
2bc416ba | 2589 | |
96baa820 | 2590 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
2591 | } |
2592 | } | |
2593 | ||
96baa820 | 2594 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
2595 | |
2596 | return retval; | |
2597 | } | |
2598 | ||
2599 | static void | |
fba45db2 | 2600 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
2601 | { |
2602 | debug_target.to_files_info (target); | |
2603 | ||
96baa820 | 2604 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
2605 | } |
2606 | ||
2607 | static int | |
8181d85f | 2608 | debug_to_insert_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2609 | { |
2610 | int retval; | |
2611 | ||
8181d85f | 2612 | retval = debug_target.to_insert_breakpoint (bp_tgt); |
c906108c | 2613 | |
96baa820 | 2614 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2615 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2616 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2617 | (unsigned long) retval); |
c906108c SS |
2618 | return retval; |
2619 | } | |
2620 | ||
2621 | static int | |
8181d85f | 2622 | debug_to_remove_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2623 | { |
2624 | int retval; | |
2625 | ||
8181d85f | 2626 | retval = debug_target.to_remove_breakpoint (bp_tgt); |
c906108c | 2627 | |
96baa820 | 2628 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2629 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2630 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2631 | (unsigned long) retval); |
c906108c SS |
2632 | return retval; |
2633 | } | |
2634 | ||
ccaa32c7 GS |
2635 | static int |
2636 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2637 | { | |
2638 | int retval; | |
2639 | ||
2640 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2641 | ||
2642 | fprintf_unfiltered (gdb_stdlog, | |
2643 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2644 | (unsigned long) type, | |
2645 | (unsigned long) cnt, | |
2646 | (unsigned long) from_tty, | |
2647 | (unsigned long) retval); | |
2648 | return retval; | |
2649 | } | |
2650 | ||
e0d24f8d WZ |
2651 | static int |
2652 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2653 | { | |
2654 | CORE_ADDR retval; | |
2655 | ||
2656 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
2657 | ||
2658 | fprintf_unfiltered (gdb_stdlog, | |
2659 | "TARGET_REGION_OK_FOR_HW_WATCHPOINT (%ld, %ld) = 0x%lx\n", | |
2660 | (unsigned long) addr, | |
2661 | (unsigned long) len, | |
2662 | (unsigned long) retval); | |
2663 | return retval; | |
2664 | } | |
2665 | ||
ccaa32c7 GS |
2666 | static int |
2667 | debug_to_stopped_by_watchpoint (void) | |
2668 | { | |
2669 | int retval; | |
2670 | ||
2671 | retval = debug_target.to_stopped_by_watchpoint (); | |
2672 | ||
2673 | fprintf_unfiltered (gdb_stdlog, | |
2674 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
2675 | (unsigned long) retval); | |
2676 | return retval; | |
2677 | } | |
2678 | ||
4aa7a7f5 JJ |
2679 | static int |
2680 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 2681 | { |
4aa7a7f5 | 2682 | int retval; |
ccaa32c7 | 2683 | |
4aa7a7f5 | 2684 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
2685 | |
2686 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
2687 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
2688 | (unsigned long)*addr, | |
2689 | (unsigned long)retval); | |
ccaa32c7 GS |
2690 | return retval; |
2691 | } | |
2692 | ||
5009afc5 AS |
2693 | static int |
2694 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
2695 | CORE_ADDR addr, | |
2696 | CORE_ADDR start, int length) | |
2697 | { | |
2698 | int retval; | |
2699 | ||
2700 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
2701 | start, length); | |
2702 | ||
2703 | fprintf_filtered (gdb_stdlog, | |
2704 | "target_watchpoint_addr_within_range (0x%lx, 0x%lx, %d) = %d\n", | |
2705 | (unsigned long) addr, (unsigned long) start, length, | |
2706 | retval); | |
2707 | return retval; | |
2708 | } | |
2709 | ||
ccaa32c7 | 2710 | static int |
8181d85f | 2711 | debug_to_insert_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2712 | { |
2713 | int retval; | |
2714 | ||
8181d85f | 2715 | retval = debug_target.to_insert_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2716 | |
2717 | fprintf_unfiltered (gdb_stdlog, | |
2718 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2719 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2720 | (unsigned long) retval); |
2721 | return retval; | |
2722 | } | |
2723 | ||
2724 | static int | |
8181d85f | 2725 | debug_to_remove_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2726 | { |
2727 | int retval; | |
2728 | ||
8181d85f | 2729 | retval = debug_target.to_remove_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2730 | |
2731 | fprintf_unfiltered (gdb_stdlog, | |
2732 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2733 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2734 | (unsigned long) retval); |
2735 | return retval; | |
2736 | } | |
2737 | ||
2738 | static int | |
2739 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2740 | { | |
2741 | int retval; | |
2742 | ||
2743 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2744 | ||
2745 | fprintf_unfiltered (gdb_stdlog, | |
2746 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2747 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2748 | return retval; | |
2749 | } | |
2750 | ||
2751 | static int | |
2752 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2753 | { | |
2754 | int retval; | |
2755 | ||
ecde4882 | 2756 | retval = debug_target.to_remove_watchpoint (addr, len, type); |
ccaa32c7 GS |
2757 | |
2758 | fprintf_unfiltered (gdb_stdlog, | |
ecde4882 | 2759 | "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n", |
ccaa32c7 GS |
2760 | (unsigned long) addr, len, type, (unsigned long) retval); |
2761 | return retval; | |
2762 | } | |
2763 | ||
c906108c | 2764 | static void |
fba45db2 | 2765 | debug_to_terminal_init (void) |
c906108c SS |
2766 | { |
2767 | debug_target.to_terminal_init (); | |
2768 | ||
96baa820 | 2769 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2770 | } |
2771 | ||
2772 | static void | |
fba45db2 | 2773 | debug_to_terminal_inferior (void) |
c906108c SS |
2774 | { |
2775 | debug_target.to_terminal_inferior (); | |
2776 | ||
96baa820 | 2777 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2778 | } |
2779 | ||
2780 | static void | |
fba45db2 | 2781 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2782 | { |
2783 | debug_target.to_terminal_ours_for_output (); | |
2784 | ||
96baa820 | 2785 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2786 | } |
2787 | ||
2788 | static void | |
fba45db2 | 2789 | debug_to_terminal_ours (void) |
c906108c SS |
2790 | { |
2791 | debug_target.to_terminal_ours (); | |
2792 | ||
96baa820 | 2793 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2794 | } |
2795 | ||
a790ad35 SC |
2796 | static void |
2797 | debug_to_terminal_save_ours (void) | |
2798 | { | |
2799 | debug_target.to_terminal_save_ours (); | |
2800 | ||
2801 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2802 | } | |
2803 | ||
c906108c | 2804 | static void |
fba45db2 | 2805 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2806 | { |
2807 | debug_target.to_terminal_info (arg, from_tty); | |
2808 | ||
96baa820 | 2809 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2810 | from_tty); |
2811 | } | |
2812 | ||
2813 | static void | |
fba45db2 | 2814 | debug_to_kill (void) |
c906108c SS |
2815 | { |
2816 | debug_target.to_kill (); | |
2817 | ||
96baa820 | 2818 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2819 | } |
2820 | ||
2821 | static void | |
fba45db2 | 2822 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2823 | { |
2824 | debug_target.to_load (args, from_tty); | |
2825 | ||
96baa820 | 2826 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2827 | } |
2828 | ||
2829 | static int | |
fba45db2 | 2830 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2831 | { |
2832 | int retval; | |
2833 | ||
2834 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2835 | ||
96baa820 | 2836 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2837 | |
2838 | return retval; | |
2839 | } | |
2840 | ||
2841 | static void | |
c27cda74 AC |
2842 | debug_to_create_inferior (char *exec_file, char *args, char **env, |
2843 | int from_tty) | |
c906108c | 2844 | { |
c27cda74 | 2845 | debug_target.to_create_inferior (exec_file, args, env, from_tty); |
c906108c | 2846 | |
c27cda74 AC |
2847 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx, %d)\n", |
2848 | exec_file, args, from_tty); | |
c906108c SS |
2849 | } |
2850 | ||
2851 | static void | |
39f77062 | 2852 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2853 | { |
39f77062 | 2854 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2855 | |
96baa820 | 2856 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2857 | PIDGET (ptid)); |
c906108c SS |
2858 | } |
2859 | ||
2860 | static void | |
fba45db2 | 2861 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2862 | { |
2863 | debug_target.to_acknowledge_created_inferior (pid); | |
2864 | ||
96baa820 | 2865 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2866 | pid); |
2867 | } | |
2868 | ||
fa113d1a | 2869 | static void |
fba45db2 | 2870 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2871 | { |
fa113d1a | 2872 | debug_target.to_insert_fork_catchpoint (pid); |
c906108c | 2873 | |
fa113d1a AC |
2874 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n", |
2875 | pid); | |
c906108c SS |
2876 | } |
2877 | ||
2878 | static int | |
fba45db2 | 2879 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2880 | { |
c5aa993b | 2881 | int retval; |
c906108c SS |
2882 | |
2883 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2884 | ||
96baa820 | 2885 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2886 | pid, retval); |
c906108c SS |
2887 | |
2888 | return retval; | |
2889 | } | |
2890 | ||
fa113d1a | 2891 | static void |
fba45db2 | 2892 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2893 | { |
fa113d1a | 2894 | debug_target.to_insert_vfork_catchpoint (pid); |
c906108c | 2895 | |
fa113d1a AC |
2896 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n", |
2897 | pid); | |
c906108c SS |
2898 | } |
2899 | ||
2900 | static int | |
fba45db2 | 2901 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2902 | { |
c5aa993b | 2903 | int retval; |
c906108c SS |
2904 | |
2905 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2906 | ||
96baa820 | 2907 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2908 | pid, retval); |
c906108c SS |
2909 | |
2910 | return retval; | |
2911 | } | |
2912 | ||
fa113d1a | 2913 | static void |
fba45db2 | 2914 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2915 | { |
fa113d1a | 2916 | debug_target.to_insert_exec_catchpoint (pid); |
c906108c | 2917 | |
fa113d1a AC |
2918 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n", |
2919 | pid); | |
c906108c SS |
2920 | } |
2921 | ||
2922 | static int | |
fba45db2 | 2923 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2924 | { |
c5aa993b | 2925 | int retval; |
c906108c SS |
2926 | |
2927 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2928 | ||
96baa820 | 2929 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2930 | pid, retval); |
c906108c SS |
2931 | |
2932 | return retval; | |
2933 | } | |
2934 | ||
c906108c | 2935 | static int |
fba45db2 | 2936 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2937 | { |
c5aa993b | 2938 | int has_exited; |
c906108c SS |
2939 | |
2940 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2941 | ||
96baa820 | 2942 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2943 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2944 | |
2945 | return has_exited; | |
2946 | } | |
2947 | ||
2948 | static void | |
fba45db2 | 2949 | debug_to_mourn_inferior (void) |
c906108c SS |
2950 | { |
2951 | debug_target.to_mourn_inferior (); | |
2952 | ||
96baa820 | 2953 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2954 | } |
2955 | ||
2956 | static int | |
fba45db2 | 2957 | debug_to_can_run (void) |
c906108c SS |
2958 | { |
2959 | int retval; | |
2960 | ||
2961 | retval = debug_target.to_can_run (); | |
2962 | ||
96baa820 | 2963 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
2964 | |
2965 | return retval; | |
2966 | } | |
2967 | ||
2968 | static void | |
39f77062 | 2969 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 2970 | { |
39f77062 | 2971 | debug_target.to_notice_signals (ptid); |
c906108c | 2972 | |
39f77062 KB |
2973 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
2974 | PIDGET (ptid)); | |
c906108c SS |
2975 | } |
2976 | ||
2977 | static int | |
39f77062 | 2978 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
2979 | { |
2980 | int retval; | |
2981 | ||
39f77062 | 2982 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 2983 | |
96baa820 | 2984 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 2985 | PIDGET (ptid), retval); |
c906108c SS |
2986 | |
2987 | return retval; | |
2988 | } | |
2989 | ||
0d06e24b | 2990 | static void |
fba45db2 | 2991 | debug_to_find_new_threads (void) |
0d06e24b JM |
2992 | { |
2993 | debug_target.to_find_new_threads (); | |
2994 | ||
2995 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
2996 | } | |
2997 | ||
c906108c | 2998 | static void |
fba45db2 | 2999 | debug_to_stop (void) |
c906108c SS |
3000 | { |
3001 | debug_target.to_stop (); | |
3002 | ||
96baa820 | 3003 | fprintf_unfiltered (gdb_stdlog, "target_stop ()\n"); |
c906108c SS |
3004 | } |
3005 | ||
96baa820 JM |
3006 | static void |
3007 | debug_to_rcmd (char *command, | |
d9fcf2fb | 3008 | struct ui_file *outbuf) |
96baa820 JM |
3009 | { |
3010 | debug_target.to_rcmd (command, outbuf); | |
3011 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
3012 | } | |
3013 | ||
c906108c | 3014 | static char * |
fba45db2 | 3015 | debug_to_pid_to_exec_file (int pid) |
c906108c | 3016 | { |
c5aa993b | 3017 | char *exec_file; |
c906108c SS |
3018 | |
3019 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
3020 | ||
96baa820 | 3021 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 3022 | pid, exec_file); |
c906108c SS |
3023 | |
3024 | return exec_file; | |
3025 | } | |
3026 | ||
c906108c | 3027 | static void |
fba45db2 | 3028 | setup_target_debug (void) |
c906108c SS |
3029 | { |
3030 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
3031 | ||
3032 | current_target.to_open = debug_to_open; | |
3033 | current_target.to_close = debug_to_close; | |
3034 | current_target.to_attach = debug_to_attach; | |
3035 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 3036 | current_target.to_detach = debug_to_detach; |
c906108c SS |
3037 | current_target.to_resume = debug_to_resume; |
3038 | current_target.to_wait = debug_to_wait; | |
c906108c SS |
3039 | current_target.to_fetch_registers = debug_to_fetch_registers; |
3040 | current_target.to_store_registers = debug_to_store_registers; | |
3041 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
c8e73a31 | 3042 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
3043 | current_target.to_files_info = debug_to_files_info; |
3044 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
3045 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
3046 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
3047 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
3048 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
3049 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
3050 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
3051 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
3052 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
5009afc5 | 3053 | current_target.to_watchpoint_addr_within_range = debug_to_watchpoint_addr_within_range; |
e0d24f8d | 3054 | current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint; |
c906108c SS |
3055 | current_target.to_terminal_init = debug_to_terminal_init; |
3056 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3057 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
3058 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 3059 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
3060 | current_target.to_terminal_info = debug_to_terminal_info; |
3061 | current_target.to_kill = debug_to_kill; | |
3062 | current_target.to_load = debug_to_load; | |
3063 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
3064 | current_target.to_create_inferior = debug_to_create_inferior; | |
3065 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
3066 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
3067 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
3068 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
3069 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
3070 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
3071 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
3072 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c SS |
3073 | current_target.to_has_exited = debug_to_has_exited; |
3074 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
3075 | current_target.to_can_run = debug_to_can_run; | |
3076 | current_target.to_notice_signals = debug_to_notice_signals; | |
3077 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 3078 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 3079 | current_target.to_stop = debug_to_stop; |
96baa820 | 3080 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 3081 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c906108c | 3082 | } |
c906108c | 3083 | \f |
c5aa993b JM |
3084 | |
3085 | static char targ_desc[] = | |
3086 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
3087 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
3088 | core-file, and process, if any), as well as the symbol file name."; | |
3089 | ||
96baa820 JM |
3090 | static void |
3091 | do_monitor_command (char *cmd, | |
3092 | int from_tty) | |
3093 | { | |
2b5fe715 AC |
3094 | if ((current_target.to_rcmd |
3095 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 3096 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
3097 | && (debug_target.to_rcmd |
3098 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 3099 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
3100 | target_rcmd (cmd, gdb_stdtarg); |
3101 | } | |
3102 | ||
87680a14 JB |
3103 | /* Print the name of each layers of our target stack. */ |
3104 | ||
3105 | static void | |
3106 | maintenance_print_target_stack (char *cmd, int from_tty) | |
3107 | { | |
3108 | struct target_ops *t; | |
3109 | ||
3110 | printf_filtered (_("The current target stack is:\n")); | |
3111 | ||
3112 | for (t = target_stack; t != NULL; t = t->beneath) | |
3113 | { | |
3114 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
3115 | } | |
3116 | } | |
3117 | ||
c906108c | 3118 | void |
fba45db2 | 3119 | initialize_targets (void) |
c906108c SS |
3120 | { |
3121 | init_dummy_target (); | |
3122 | push_target (&dummy_target); | |
3123 | ||
3124 | add_info ("target", target_info, targ_desc); | |
3125 | add_info ("files", target_info, targ_desc); | |
3126 | ||
85c07804 AC |
3127 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
3128 | Set target debugging."), _("\ | |
3129 | Show target debugging."), _("\ | |
333dabeb DJ |
3130 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
3131 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
3132 | command."), |
3133 | NULL, | |
920d2a44 | 3134 | show_targetdebug, |
85c07804 | 3135 | &setdebuglist, &showdebuglist); |
3a11626d | 3136 | |
2bc416ba | 3137 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
3138 | &trust_readonly, _("\ |
3139 | Set mode for reading from readonly sections."), _("\ | |
3140 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
3141 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
3142 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 3143 | result in significant performance improvement for remote targets."), |
2c5b56ce | 3144 | NULL, |
920d2a44 | 3145 | show_trust_readonly, |
e707bbc2 | 3146 | &setlist, &showlist); |
96baa820 JM |
3147 | |
3148 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 3149 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 3150 | |
87680a14 JB |
3151 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
3152 | _("Print the name of each layer of the internal target stack."), | |
3153 | &maintenanceprintlist); | |
3154 | ||
8add0441 | 3155 | target_dcache = dcache_init (); |
c906108c | 3156 | } |