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" |
b9db4ced | 43 | #include "solib.h" |
c906108c | 44 | |
a14ed312 | 45 | static void target_info (char *, int); |
c906108c | 46 | |
a14ed312 | 47 | static void kill_or_be_killed (int); |
c906108c | 48 | |
a14ed312 | 49 | static void default_terminal_info (char *, int); |
c906108c | 50 | |
5009afc5 AS |
51 | static int default_watchpoint_addr_within_range (struct target_ops *, |
52 | CORE_ADDR, CORE_ADDR, int); | |
53 | ||
e0d24f8d WZ |
54 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
55 | ||
a14ed312 | 56 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 57 | |
4ecb6f27 | 58 | static void tcomplain (void) ATTR_NORETURN; |
c906108c | 59 | |
a14ed312 | 60 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 61 | |
a14ed312 | 62 | static int return_zero (void); |
c906108c | 63 | |
a14ed312 | 64 | static int return_one (void); |
c906108c | 65 | |
ccaa32c7 GS |
66 | static int return_minus_one (void); |
67 | ||
a14ed312 | 68 | void target_ignore (void); |
c906108c | 69 | |
a14ed312 | 70 | static void target_command (char *, int); |
c906108c | 71 | |
a14ed312 | 72 | static struct target_ops *find_default_run_target (char *); |
c906108c | 73 | |
a14ed312 | 74 | static void nosupport_runtime (void); |
392a587b | 75 | |
4b8a223f | 76 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 77 | enum target_object object, |
1b0ba102 AC |
78 | const char *annex, gdb_byte *readbuf, |
79 | const gdb_byte *writebuf, | |
8aa91c1e | 80 | ULONGEST offset, LONGEST len); |
0088c768 | 81 | |
cf7a04e8 DJ |
82 | static LONGEST current_xfer_partial (struct target_ops *ops, |
83 | enum target_object object, | |
84 | const char *annex, gdb_byte *readbuf, | |
85 | const gdb_byte *writebuf, | |
86 | ULONGEST offset, LONGEST len); | |
c906108c | 87 | |
cf7a04e8 DJ |
88 | static LONGEST target_xfer_partial (struct target_ops *ops, |
89 | enum target_object object, | |
90 | const char *annex, | |
91 | void *readbuf, const void *writebuf, | |
92 | ULONGEST offset, LONGEST len); | |
c906108c | 93 | |
a14ed312 | 94 | static void init_dummy_target (void); |
c906108c | 95 | |
aa869812 AC |
96 | static struct target_ops debug_target; |
97 | ||
a14ed312 | 98 | static void debug_to_open (char *, int); |
c906108c | 99 | |
a14ed312 | 100 | static void debug_to_close (int); |
c906108c | 101 | |
a14ed312 | 102 | static void debug_to_attach (char *, int); |
c906108c | 103 | |
a14ed312 | 104 | static void debug_to_detach (char *, int); |
c906108c | 105 | |
39f77062 | 106 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 107 | |
39f77062 | 108 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 109 | |
56be3814 | 110 | static void debug_to_fetch_registers (struct regcache *, int); |
c906108c | 111 | |
56be3814 | 112 | static void debug_to_store_registers (struct regcache *, int); |
c906108c | 113 | |
316f2060 | 114 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 115 | |
a14ed312 | 116 | static void debug_to_files_info (struct target_ops *); |
c906108c | 117 | |
8181d85f | 118 | static int debug_to_insert_breakpoint (struct bp_target_info *); |
c906108c | 119 | |
8181d85f | 120 | static int debug_to_remove_breakpoint (struct bp_target_info *); |
c906108c | 121 | |
ccaa32c7 GS |
122 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
123 | ||
8181d85f | 124 | static int debug_to_insert_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 | 125 | |
8181d85f | 126 | static int debug_to_remove_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 GS |
127 | |
128 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
129 | ||
130 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
131 | ||
132 | static int debug_to_stopped_by_watchpoint (void); | |
133 | ||
4aa7a7f5 | 134 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 135 | |
5009afc5 AS |
136 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
137 | CORE_ADDR, CORE_ADDR, int); | |
138 | ||
e0d24f8d WZ |
139 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
140 | ||
a14ed312 | 141 | static void debug_to_terminal_init (void); |
c906108c | 142 | |
a14ed312 | 143 | static void debug_to_terminal_inferior (void); |
c906108c | 144 | |
a14ed312 | 145 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 146 | |
a790ad35 SC |
147 | static void debug_to_terminal_save_ours (void); |
148 | ||
a14ed312 | 149 | static void debug_to_terminal_ours (void); |
c906108c | 150 | |
a14ed312 | 151 | static void debug_to_terminal_info (char *, int); |
c906108c | 152 | |
a14ed312 | 153 | static void debug_to_kill (void); |
c906108c | 154 | |
a14ed312 | 155 | static void debug_to_load (char *, int); |
c906108c | 156 | |
a14ed312 | 157 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 158 | |
a14ed312 | 159 | static void debug_to_mourn_inferior (void); |
c906108c | 160 | |
a14ed312 | 161 | static int debug_to_can_run (void); |
c906108c | 162 | |
39f77062 | 163 | static void debug_to_notice_signals (ptid_t); |
c906108c | 164 | |
39f77062 | 165 | static int debug_to_thread_alive (ptid_t); |
c906108c | 166 | |
94cc34af | 167 | static void debug_to_stop (ptid_t); |
c906108c | 168 | |
5ac10fd1 AC |
169 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
170 | wierd and mysterious ways. Putting the variable here lets those | |
171 | wierd and mysterious ways keep building while they are being | |
172 | converted to the inferior inheritance structure. */ | |
1df84f13 | 173 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 174 | |
c906108c | 175 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 176 | array; the current index into the array; the allocated size of the |
c906108c SS |
177 | array. */ |
178 | struct target_ops **target_structs; | |
179 | unsigned target_struct_size; | |
180 | unsigned target_struct_index; | |
181 | unsigned target_struct_allocsize; | |
182 | #define DEFAULT_ALLOCSIZE 10 | |
183 | ||
184 | /* The initial current target, so that there is always a semi-valid | |
185 | current target. */ | |
186 | ||
187 | static struct target_ops dummy_target; | |
188 | ||
189 | /* Top of target stack. */ | |
190 | ||
258b763a | 191 | static struct target_ops *target_stack; |
c906108c SS |
192 | |
193 | /* The target structure we are currently using to talk to a process | |
194 | or file or whatever "inferior" we have. */ | |
195 | ||
196 | struct target_ops current_target; | |
197 | ||
198 | /* Command list for target. */ | |
199 | ||
200 | static struct cmd_list_element *targetlist = NULL; | |
201 | ||
202 | /* Nonzero if we are debugging an attached outside process | |
203 | rather than an inferior. */ | |
204 | ||
205 | int attach_flag; | |
206 | ||
cf7a04e8 DJ |
207 | /* Nonzero if we should trust readonly sections from the |
208 | executable when reading memory. */ | |
209 | ||
210 | static int trust_readonly = 0; | |
211 | ||
8defab1a DJ |
212 | /* Nonzero if we should show true memory content including |
213 | memory breakpoint inserted by gdb. */ | |
214 | ||
215 | static int show_memory_breakpoints = 0; | |
216 | ||
c906108c SS |
217 | /* Non-zero if we want to see trace of target level stuff. */ |
218 | ||
219 | static int targetdebug = 0; | |
920d2a44 AC |
220 | static void |
221 | show_targetdebug (struct ui_file *file, int from_tty, | |
222 | struct cmd_list_element *c, const char *value) | |
223 | { | |
224 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
225 | } | |
c906108c | 226 | |
a14ed312 | 227 | static void setup_target_debug (void); |
c906108c | 228 | |
4930751a C |
229 | DCACHE *target_dcache; |
230 | ||
c906108c SS |
231 | /* The user just typed 'target' without the name of a target. */ |
232 | ||
c906108c | 233 | static void |
fba45db2 | 234 | target_command (char *arg, int from_tty) |
c906108c SS |
235 | { |
236 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
237 | gdb_stdout); | |
238 | } | |
239 | ||
240 | /* Add a possible target architecture to the list. */ | |
241 | ||
242 | void | |
fba45db2 | 243 | add_target (struct target_ops *t) |
c906108c | 244 | { |
0088c768 | 245 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
246 | if (t->to_xfer_partial == NULL) |
247 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 248 | |
c906108c SS |
249 | if (!target_structs) |
250 | { | |
251 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
252 | target_structs = (struct target_ops **) xmalloc | |
253 | (target_struct_allocsize * sizeof (*target_structs)); | |
254 | } | |
255 | if (target_struct_size >= target_struct_allocsize) | |
256 | { | |
257 | target_struct_allocsize *= 2; | |
258 | target_structs = (struct target_ops **) | |
c5aa993b JM |
259 | xrealloc ((char *) target_structs, |
260 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
261 | } |
262 | target_structs[target_struct_size++] = t; | |
c906108c SS |
263 | |
264 | if (targetlist == NULL) | |
1bedd215 AC |
265 | add_prefix_cmd ("target", class_run, target_command, _("\ |
266 | Connect to a target machine or process.\n\ | |
c906108c SS |
267 | The first argument is the type or protocol of the target machine.\n\ |
268 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
269 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 270 | `help target ' followed by the protocol name."), |
c906108c SS |
271 | &targetlist, "target ", 0, &cmdlist); |
272 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
273 | } | |
274 | ||
275 | /* Stub functions */ | |
276 | ||
277 | void | |
fba45db2 | 278 | target_ignore (void) |
c906108c SS |
279 | { |
280 | } | |
281 | ||
11cf8741 JM |
282 | void |
283 | target_load (char *arg, int from_tty) | |
284 | { | |
4930751a | 285 | dcache_invalidate (target_dcache); |
11cf8741 JM |
286 | (*current_target.to_load) (arg, from_tty); |
287 | } | |
288 | ||
c906108c | 289 | static int |
fba45db2 KB |
290 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
291 | struct target_ops *t) | |
c906108c | 292 | { |
c5aa993b JM |
293 | errno = EIO; /* Can't read/write this location */ |
294 | return 0; /* No bytes handled */ | |
c906108c SS |
295 | } |
296 | ||
297 | static void | |
fba45db2 | 298 | tcomplain (void) |
c906108c | 299 | { |
8a3fe4f8 | 300 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
301 | current_target.to_shortname); |
302 | } | |
303 | ||
304 | void | |
fba45db2 | 305 | noprocess (void) |
c906108c | 306 | { |
8a3fe4f8 | 307 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
308 | } |
309 | ||
c906108c | 310 | static int |
fba45db2 | 311 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 312 | { |
c5aa993b | 313 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
314 | } |
315 | ||
392a587b | 316 | static void |
fba45db2 | 317 | nosupport_runtime (void) |
c906108c | 318 | { |
39f77062 | 319 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
320 | noprocess (); |
321 | else | |
8a3fe4f8 | 322 | error (_("No run-time support for this")); |
c906108c SS |
323 | } |
324 | ||
325 | ||
c906108c | 326 | static void |
fba45db2 | 327 | default_terminal_info (char *args, int from_tty) |
c906108c | 328 | { |
a3f17187 | 329 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
330 | } |
331 | ||
332 | /* This is the default target_create_inferior and target_attach function. | |
333 | If the current target is executing, it asks whether to kill it off. | |
334 | If this function returns without calling error(), it has killed off | |
335 | the target, and the operation should be attempted. */ | |
336 | ||
337 | static void | |
fba45db2 | 338 | kill_or_be_killed (int from_tty) |
c906108c SS |
339 | { |
340 | if (target_has_execution) | |
341 | { | |
a3f17187 | 342 | printf_unfiltered (_("You are already running a program:\n")); |
c906108c | 343 | target_files_info (); |
c5aa993b JM |
344 | if (query ("Kill it? ")) |
345 | { | |
346 | target_kill (); | |
347 | if (target_has_execution) | |
8a3fe4f8 | 348 | error (_("Killing the program did not help.")); |
c5aa993b JM |
349 | return; |
350 | } | |
351 | else | |
352 | { | |
8a3fe4f8 | 353 | error (_("Program not killed.")); |
c5aa993b | 354 | } |
c906108c | 355 | } |
c5aa993b | 356 | tcomplain (); |
c906108c SS |
357 | } |
358 | ||
7998dfc3 AC |
359 | /* Go through the target stack from top to bottom, copying over zero |
360 | entries in current_target, then filling in still empty entries. In | |
361 | effect, we are doing class inheritance through the pushed target | |
362 | vectors. | |
363 | ||
364 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
365 | is currently implemented, is that it discards any knowledge of | |
366 | which target an inherited method originally belonged to. | |
367 | Consequently, new new target methods should instead explicitly and | |
368 | locally search the target stack for the target that can handle the | |
369 | request. */ | |
c906108c SS |
370 | |
371 | static void | |
7998dfc3 | 372 | update_current_target (void) |
c906108c | 373 | { |
7998dfc3 AC |
374 | struct target_ops *t; |
375 | ||
08d8bcd7 | 376 | /* First, reset current's contents. */ |
7998dfc3 AC |
377 | memset (¤t_target, 0, sizeof (current_target)); |
378 | ||
379 | #define INHERIT(FIELD, TARGET) \ | |
380 | if (!current_target.FIELD) \ | |
381 | current_target.FIELD = (TARGET)->FIELD | |
382 | ||
383 | for (t = target_stack; t; t = t->beneath) | |
384 | { | |
385 | INHERIT (to_shortname, t); | |
386 | INHERIT (to_longname, t); | |
387 | INHERIT (to_doc, t); | |
388 | INHERIT (to_open, t); | |
389 | INHERIT (to_close, t); | |
390 | INHERIT (to_attach, t); | |
391 | INHERIT (to_post_attach, t); | |
dc177b7a | 392 | INHERIT (to_attach_no_wait, t); |
7998dfc3 | 393 | INHERIT (to_detach, t); |
597320e7 | 394 | /* Do not inherit to_disconnect. */ |
7998dfc3 AC |
395 | INHERIT (to_resume, t); |
396 | INHERIT (to_wait, t); | |
7998dfc3 AC |
397 | INHERIT (to_fetch_registers, t); |
398 | INHERIT (to_store_registers, t); | |
399 | INHERIT (to_prepare_to_store, t); | |
c8e73a31 | 400 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
401 | INHERIT (to_files_info, t); |
402 | INHERIT (to_insert_breakpoint, t); | |
403 | INHERIT (to_remove_breakpoint, t); | |
404 | INHERIT (to_can_use_hw_breakpoint, t); | |
405 | INHERIT (to_insert_hw_breakpoint, t); | |
406 | INHERIT (to_remove_hw_breakpoint, t); | |
407 | INHERIT (to_insert_watchpoint, t); | |
408 | INHERIT (to_remove_watchpoint, t); | |
409 | INHERIT (to_stopped_data_address, t); | |
74174d2e | 410 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 411 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
412 | INHERIT (to_stopped_by_watchpoint, t); |
413 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 414 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
7998dfc3 AC |
415 | INHERIT (to_terminal_init, t); |
416 | INHERIT (to_terminal_inferior, t); | |
417 | INHERIT (to_terminal_ours_for_output, t); | |
418 | INHERIT (to_terminal_ours, t); | |
419 | INHERIT (to_terminal_save_ours, t); | |
420 | INHERIT (to_terminal_info, t); | |
421 | INHERIT (to_kill, t); | |
422 | INHERIT (to_load, t); | |
423 | INHERIT (to_lookup_symbol, t); | |
424 | INHERIT (to_create_inferior, t); | |
425 | INHERIT (to_post_startup_inferior, t); | |
426 | INHERIT (to_acknowledge_created_inferior, t); | |
427 | INHERIT (to_insert_fork_catchpoint, t); | |
428 | INHERIT (to_remove_fork_catchpoint, t); | |
429 | INHERIT (to_insert_vfork_catchpoint, t); | |
430 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 431 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
432 | INHERIT (to_insert_exec_catchpoint, t); |
433 | INHERIT (to_remove_exec_catchpoint, t); | |
7998dfc3 AC |
434 | INHERIT (to_has_exited, t); |
435 | INHERIT (to_mourn_inferior, t); | |
436 | INHERIT (to_can_run, t); | |
437 | INHERIT (to_notice_signals, t); | |
438 | INHERIT (to_thread_alive, t); | |
439 | INHERIT (to_find_new_threads, t); | |
440 | INHERIT (to_pid_to_str, t); | |
441 | INHERIT (to_extra_thread_info, t); | |
442 | INHERIT (to_stop, t); | |
4b8a223f | 443 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 444 | INHERIT (to_rcmd, t); |
7998dfc3 | 445 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 446 | INHERIT (to_log_command, t); |
7998dfc3 AC |
447 | INHERIT (to_stratum, t); |
448 | INHERIT (to_has_all_memory, t); | |
449 | INHERIT (to_has_memory, t); | |
450 | INHERIT (to_has_stack, t); | |
451 | INHERIT (to_has_registers, t); | |
452 | INHERIT (to_has_execution, t); | |
453 | INHERIT (to_has_thread_control, t); | |
454 | INHERIT (to_sections, t); | |
455 | INHERIT (to_sections_end, t); | |
456 | INHERIT (to_can_async_p, t); | |
457 | INHERIT (to_is_async_p, t); | |
458 | INHERIT (to_async, t); | |
b84876c2 | 459 | INHERIT (to_async_mask, t); |
7998dfc3 AC |
460 | INHERIT (to_find_memory_regions, t); |
461 | INHERIT (to_make_corefile_notes, t); | |
462 | INHERIT (to_get_thread_local_address, t); | |
424163ea | 463 | /* Do not inherit to_read_description. */ |
08388c79 | 464 | /* Do not inherit to_search_memory. */ |
7998dfc3 | 465 | INHERIT (to_magic, t); |
fd79ecee | 466 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
467 | /* Do not inherit to_flash_erase. */ |
468 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
469 | } |
470 | #undef INHERIT | |
471 | ||
472 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
473 | it. Some entries are defaulted to a method that print an error, |
474 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
475 | |
476 | #define de_fault(field, value) \ | |
7998dfc3 AC |
477 | if (!current_target.field) \ |
478 | current_target.field = value | |
0d06e24b | 479 | |
2bc416ba DJ |
480 | de_fault (to_open, |
481 | (void (*) (char *, int)) | |
0d06e24b | 482 | tcomplain); |
2bc416ba DJ |
483 | de_fault (to_close, |
484 | (void (*) (int)) | |
0d06e24b | 485 | target_ignore); |
2bc416ba DJ |
486 | de_fault (to_post_attach, |
487 | (void (*) (int)) | |
0d06e24b | 488 | target_ignore); |
2bc416ba DJ |
489 | de_fault (to_detach, |
490 | (void (*) (char *, int)) | |
0d06e24b | 491 | target_ignore); |
2bc416ba DJ |
492 | de_fault (to_resume, |
493 | (void (*) (ptid_t, int, enum target_signal)) | |
0d06e24b | 494 | noprocess); |
2bc416ba DJ |
495 | de_fault (to_wait, |
496 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) | |
0d06e24b | 497 | noprocess); |
2bc416ba | 498 | de_fault (to_fetch_registers, |
56be3814 | 499 | (void (*) (struct regcache *, int)) |
0d06e24b | 500 | target_ignore); |
2bc416ba | 501 | de_fault (to_store_registers, |
56be3814 | 502 | (void (*) (struct regcache *, int)) |
0d06e24b | 503 | noprocess); |
2bc416ba | 504 | de_fault (to_prepare_to_store, |
316f2060 | 505 | (void (*) (struct regcache *)) |
0d06e24b | 506 | noprocess); |
2bc416ba DJ |
507 | de_fault (deprecated_xfer_memory, |
508 | (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 509 | nomemory); |
2bc416ba DJ |
510 | de_fault (to_files_info, |
511 | (void (*) (struct target_ops *)) | |
0d06e24b | 512 | target_ignore); |
2bc416ba | 513 | de_fault (to_insert_breakpoint, |
0d06e24b | 514 | memory_insert_breakpoint); |
2bc416ba | 515 | de_fault (to_remove_breakpoint, |
0d06e24b | 516 | memory_remove_breakpoint); |
ccaa32c7 GS |
517 | de_fault (to_can_use_hw_breakpoint, |
518 | (int (*) (int, int, int)) | |
519 | return_zero); | |
520 | de_fault (to_insert_hw_breakpoint, | |
8181d85f | 521 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
522 | return_minus_one); |
523 | de_fault (to_remove_hw_breakpoint, | |
8181d85f | 524 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
525 | return_minus_one); |
526 | de_fault (to_insert_watchpoint, | |
527 | (int (*) (CORE_ADDR, int, int)) | |
528 | return_minus_one); | |
529 | de_fault (to_remove_watchpoint, | |
530 | (int (*) (CORE_ADDR, int, int)) | |
531 | return_minus_one); | |
532 | de_fault (to_stopped_by_watchpoint, | |
533 | (int (*) (void)) | |
534 | return_zero); | |
535 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 536 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 537 | return_zero); |
5009afc5 AS |
538 | de_fault (to_watchpoint_addr_within_range, |
539 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
540 | de_fault (to_region_ok_for_hw_watchpoint, |
541 | default_region_ok_for_hw_watchpoint); | |
2bc416ba DJ |
542 | de_fault (to_terminal_init, |
543 | (void (*) (void)) | |
0d06e24b | 544 | target_ignore); |
2bc416ba DJ |
545 | de_fault (to_terminal_inferior, |
546 | (void (*) (void)) | |
0d06e24b | 547 | target_ignore); |
2bc416ba DJ |
548 | de_fault (to_terminal_ours_for_output, |
549 | (void (*) (void)) | |
0d06e24b | 550 | target_ignore); |
2bc416ba DJ |
551 | de_fault (to_terminal_ours, |
552 | (void (*) (void)) | |
0d06e24b | 553 | target_ignore); |
2bc416ba DJ |
554 | de_fault (to_terminal_save_ours, |
555 | (void (*) (void)) | |
a790ad35 | 556 | target_ignore); |
2bc416ba | 557 | de_fault (to_terminal_info, |
0d06e24b | 558 | default_terminal_info); |
2bc416ba DJ |
559 | de_fault (to_kill, |
560 | (void (*) (void)) | |
0d06e24b | 561 | noprocess); |
2bc416ba DJ |
562 | de_fault (to_load, |
563 | (void (*) (char *, int)) | |
0d06e24b | 564 | tcomplain); |
2bc416ba DJ |
565 | de_fault (to_lookup_symbol, |
566 | (int (*) (char *, CORE_ADDR *)) | |
0d06e24b | 567 | nosymbol); |
2bc416ba DJ |
568 | de_fault (to_post_startup_inferior, |
569 | (void (*) (ptid_t)) | |
0d06e24b | 570 | target_ignore); |
2bc416ba DJ |
571 | de_fault (to_acknowledge_created_inferior, |
572 | (void (*) (int)) | |
0d06e24b | 573 | target_ignore); |
2bc416ba DJ |
574 | de_fault (to_insert_fork_catchpoint, |
575 | (void (*) (int)) | |
0d06e24b | 576 | tcomplain); |
2bc416ba DJ |
577 | de_fault (to_remove_fork_catchpoint, |
578 | (int (*) (int)) | |
0d06e24b | 579 | tcomplain); |
2bc416ba DJ |
580 | de_fault (to_insert_vfork_catchpoint, |
581 | (void (*) (int)) | |
0d06e24b | 582 | tcomplain); |
2bc416ba DJ |
583 | de_fault (to_remove_vfork_catchpoint, |
584 | (int (*) (int)) | |
0d06e24b | 585 | tcomplain); |
2bc416ba DJ |
586 | de_fault (to_insert_exec_catchpoint, |
587 | (void (*) (int)) | |
0d06e24b | 588 | tcomplain); |
2bc416ba DJ |
589 | de_fault (to_remove_exec_catchpoint, |
590 | (int (*) (int)) | |
0d06e24b | 591 | tcomplain); |
2bc416ba DJ |
592 | de_fault (to_has_exited, |
593 | (int (*) (int, int, int *)) | |
0d06e24b | 594 | return_zero); |
2bc416ba DJ |
595 | de_fault (to_mourn_inferior, |
596 | (void (*) (void)) | |
0d06e24b | 597 | noprocess); |
2bc416ba | 598 | de_fault (to_can_run, |
0d06e24b | 599 | return_zero); |
2bc416ba DJ |
600 | de_fault (to_notice_signals, |
601 | (void (*) (ptid_t)) | |
0d06e24b | 602 | target_ignore); |
2bc416ba DJ |
603 | de_fault (to_thread_alive, |
604 | (int (*) (ptid_t)) | |
0d06e24b | 605 | return_zero); |
2bc416ba DJ |
606 | de_fault (to_find_new_threads, |
607 | (void (*) (void)) | |
0d06e24b | 608 | target_ignore); |
2bc416ba DJ |
609 | de_fault (to_extra_thread_info, |
610 | (char *(*) (struct thread_info *)) | |
0d06e24b | 611 | return_zero); |
2bc416ba | 612 | de_fault (to_stop, |
94cc34af | 613 | (void (*) (ptid_t)) |
0d06e24b | 614 | target_ignore); |
cf7a04e8 | 615 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
616 | de_fault (to_rcmd, |
617 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 618 | tcomplain); |
2bc416ba DJ |
619 | de_fault (to_pid_to_exec_file, |
620 | (char *(*) (int)) | |
0d06e24b | 621 | return_zero); |
2bc416ba DJ |
622 | de_fault (to_async, |
623 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 624 | tcomplain); |
b84876c2 PA |
625 | de_fault (to_async_mask, |
626 | (int (*) (int)) | |
627 | return_one); | |
424163ea | 628 | current_target.to_read_description = NULL; |
c906108c | 629 | #undef de_fault |
c906108c | 630 | |
7998dfc3 AC |
631 | /* Finally, position the target-stack beneath the squashed |
632 | "current_target". That way code looking for a non-inherited | |
633 | target method can quickly and simply find it. */ | |
634 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
635 | |
636 | if (targetdebug) | |
637 | setup_target_debug (); | |
c906108c SS |
638 | } |
639 | ||
52bb452f DJ |
640 | /* Mark OPS as a running target. This reverses the effect |
641 | of target_mark_exited. */ | |
642 | ||
643 | void | |
644 | target_mark_running (struct target_ops *ops) | |
645 | { | |
646 | struct target_ops *t; | |
647 | ||
648 | for (t = target_stack; t != NULL; t = t->beneath) | |
649 | if (t == ops) | |
650 | break; | |
651 | if (t == NULL) | |
652 | internal_error (__FILE__, __LINE__, | |
653 | "Attempted to mark unpushed target \"%s\" as running", | |
654 | ops->to_shortname); | |
655 | ||
656 | ops->to_has_execution = 1; | |
657 | ops->to_has_all_memory = 1; | |
658 | ops->to_has_memory = 1; | |
659 | ops->to_has_stack = 1; | |
660 | ops->to_has_registers = 1; | |
661 | ||
662 | update_current_target (); | |
663 | } | |
664 | ||
665 | /* Mark OPS as a non-running target. This reverses the effect | |
666 | of target_mark_running. */ | |
667 | ||
668 | void | |
669 | target_mark_exited (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 = 0; | |
682 | ops->to_has_all_memory = 0; | |
683 | ops->to_has_memory = 0; | |
684 | ops->to_has_stack = 0; | |
685 | ops->to_has_registers = 0; | |
686 | ||
687 | update_current_target (); | |
688 | } | |
689 | ||
c906108c SS |
690 | /* Push a new target type into the stack of the existing target accessors, |
691 | possibly superseding some of the existing accessors. | |
692 | ||
693 | Result is zero if the pushed target ended up on top of the stack, | |
694 | nonzero if at least one target is on top of it. | |
695 | ||
696 | Rather than allow an empty stack, we always have the dummy target at | |
697 | the bottom stratum, so we can call the function vectors without | |
698 | checking them. */ | |
699 | ||
700 | int | |
fba45db2 | 701 | push_target (struct target_ops *t) |
c906108c | 702 | { |
258b763a | 703 | struct target_ops **cur; |
c906108c SS |
704 | |
705 | /* Check magic number. If wrong, it probably means someone changed | |
706 | the struct definition, but not all the places that initialize one. */ | |
707 | if (t->to_magic != OPS_MAGIC) | |
708 | { | |
c5aa993b JM |
709 | fprintf_unfiltered (gdb_stderr, |
710 | "Magic number of %s target struct wrong\n", | |
711 | t->to_shortname); | |
e2e0b3e5 | 712 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
713 | } |
714 | ||
258b763a AC |
715 | /* Find the proper stratum to install this target in. */ |
716 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 717 | { |
258b763a | 718 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
719 | break; |
720 | } | |
721 | ||
258b763a | 722 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 723 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
724 | targets to CUR, and not just those at this stratum level. */ |
725 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
726 | { | |
727 | /* There's already something at this stratum level. Close it, | |
728 | and un-hook it from the stack. */ | |
729 | struct target_ops *tmp = (*cur); | |
730 | (*cur) = (*cur)->beneath; | |
731 | tmp->beneath = NULL; | |
f1c07ab0 | 732 | target_close (tmp, 0); |
258b763a | 733 | } |
c906108c SS |
734 | |
735 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
736 | t->beneath = (*cur); |
737 | (*cur) = t; | |
c906108c SS |
738 | |
739 | update_current_target (); | |
740 | ||
258b763a AC |
741 | /* Not on top? */ |
742 | return (t != target_stack); | |
c906108c SS |
743 | } |
744 | ||
2bc416ba | 745 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
746 | Return how many times it was removed (0 or 1). */ |
747 | ||
748 | int | |
fba45db2 | 749 | unpush_target (struct target_ops *t) |
c906108c | 750 | { |
258b763a AC |
751 | struct target_ops **cur; |
752 | struct target_ops *tmp; | |
c906108c | 753 | |
c906108c SS |
754 | /* Look for the specified target. Note that we assume that a target |
755 | can only occur once in the target stack. */ | |
756 | ||
258b763a AC |
757 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
758 | { | |
759 | if ((*cur) == t) | |
760 | break; | |
761 | } | |
c906108c | 762 | |
258b763a | 763 | if ((*cur) == NULL) |
c906108c SS |
764 | return 0; /* Didn't find target_ops, quit now */ |
765 | ||
5269965e AC |
766 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
767 | unconditional by moving it to before the above check that the | |
768 | target was in the target stack (something about "Change the way | |
769 | pushing and popping of targets work to support target overlays | |
770 | and inheritance"). This doesn't make much sense - only open | |
771 | targets should be closed. */ | |
772 | target_close (t, 0); | |
773 | ||
c906108c | 774 | /* Unchain the target */ |
258b763a AC |
775 | tmp = (*cur); |
776 | (*cur) = (*cur)->beneath; | |
777 | tmp->beneath = NULL; | |
c906108c SS |
778 | |
779 | update_current_target (); | |
c906108c SS |
780 | |
781 | return 1; | |
782 | } | |
783 | ||
784 | void | |
fba45db2 | 785 | pop_target (void) |
c906108c | 786 | { |
f1c07ab0 | 787 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 788 | if (unpush_target (target_stack) == 1) |
c906108c SS |
789 | return; |
790 | ||
c5aa993b JM |
791 | fprintf_unfiltered (gdb_stderr, |
792 | "pop_target couldn't find target %s\n", | |
793 | current_target.to_shortname); | |
e2e0b3e5 | 794 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
795 | } |
796 | ||
aa76d38d | 797 | void |
87ab71f0 | 798 | pop_all_targets_above (enum strata above_stratum, int quitting) |
aa76d38d | 799 | { |
87ab71f0 | 800 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d PA |
801 | { |
802 | target_close (¤t_target, quitting); | |
803 | if (!unpush_target (target_stack)) | |
804 | { | |
805 | fprintf_unfiltered (gdb_stderr, | |
806 | "pop_all_targets couldn't find target %s\n", | |
807 | current_target.to_shortname); | |
808 | internal_error (__FILE__, __LINE__, | |
809 | _("failed internal consistency check")); | |
810 | break; | |
811 | } | |
812 | } | |
813 | } | |
814 | ||
87ab71f0 PA |
815 | void |
816 | pop_all_targets (int quitting) | |
817 | { | |
818 | pop_all_targets_above (dummy_stratum, quitting); | |
819 | } | |
820 | ||
72f5cf0e | 821 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
822 | current thread's thread-local storage with offset OFFSET. */ |
823 | CORE_ADDR | |
824 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
825 | { | |
826 | volatile CORE_ADDR addr = 0; | |
827 | ||
828 | if (target_get_thread_local_address_p () | |
1cf3db46 | 829 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch)) |
9e35dae4 DJ |
830 | { |
831 | ptid_t ptid = inferior_ptid; | |
832 | volatile struct gdb_exception ex; | |
833 | ||
834 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
835 | { | |
836 | CORE_ADDR lm_addr; | |
837 | ||
838 | /* Fetch the load module address for this objfile. */ | |
1cf3db46 | 839 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch, |
9e35dae4 DJ |
840 | objfile); |
841 | /* If it's 0, throw the appropriate exception. */ | |
842 | if (lm_addr == 0) | |
843 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
844 | _("TLS load module not found")); | |
845 | ||
846 | addr = target_get_thread_local_address (ptid, lm_addr, offset); | |
847 | } | |
848 | /* If an error occurred, print TLS related messages here. Otherwise, | |
849 | throw the error to some higher catcher. */ | |
850 | if (ex.reason < 0) | |
851 | { | |
852 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
853 | ||
854 | switch (ex.error) | |
855 | { | |
856 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
857 | error (_("Cannot find thread-local variables in this thread library.")); | |
858 | break; | |
859 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
860 | if (objfile_is_library) | |
861 | error (_("Cannot find shared library `%s' in dynamic" | |
862 | " linker's load module list"), objfile->name); | |
863 | else | |
864 | error (_("Cannot find executable file `%s' in dynamic" | |
865 | " linker's load module list"), objfile->name); | |
866 | break; | |
867 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
868 | if (objfile_is_library) | |
869 | error (_("The inferior has not yet allocated storage for" | |
870 | " thread-local variables in\n" | |
871 | "the shared library `%s'\n" | |
872 | "for %s"), | |
873 | objfile->name, target_pid_to_str (ptid)); | |
874 | else | |
875 | error (_("The inferior has not yet allocated storage for" | |
876 | " thread-local variables in\n" | |
877 | "the executable `%s'\n" | |
878 | "for %s"), | |
879 | objfile->name, target_pid_to_str (ptid)); | |
880 | break; | |
881 | case TLS_GENERIC_ERROR: | |
882 | if (objfile_is_library) | |
883 | error (_("Cannot find thread-local storage for %s, " | |
884 | "shared library %s:\n%s"), | |
885 | target_pid_to_str (ptid), | |
886 | objfile->name, ex.message); | |
887 | else | |
888 | error (_("Cannot find thread-local storage for %s, " | |
889 | "executable file %s:\n%s"), | |
890 | target_pid_to_str (ptid), | |
891 | objfile->name, ex.message); | |
892 | break; | |
893 | default: | |
894 | throw_exception (ex); | |
895 | break; | |
896 | } | |
897 | } | |
898 | } | |
899 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
900 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
901 | else | |
902 | error (_("Cannot find thread-local variables on this target")); | |
903 | ||
904 | return addr; | |
905 | } | |
906 | ||
c906108c SS |
907 | #undef MIN |
908 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
909 | ||
910 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
911 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
912 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
913 | is responsible for freeing it. Return the number of bytes successfully | |
914 | read. */ | |
915 | ||
916 | int | |
fba45db2 | 917 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
918 | { |
919 | int tlen, origlen, offset, i; | |
1b0ba102 | 920 | gdb_byte buf[4]; |
c906108c SS |
921 | int errcode = 0; |
922 | char *buffer; | |
923 | int buffer_allocated; | |
924 | char *bufptr; | |
925 | unsigned int nbytes_read = 0; | |
926 | ||
6217bf3e MS |
927 | gdb_assert (string); |
928 | ||
c906108c SS |
929 | /* Small for testing. */ |
930 | buffer_allocated = 4; | |
931 | buffer = xmalloc (buffer_allocated); | |
932 | bufptr = buffer; | |
933 | ||
934 | origlen = len; | |
935 | ||
936 | while (len > 0) | |
937 | { | |
938 | tlen = MIN (len, 4 - (memaddr & 3)); | |
939 | offset = memaddr & 3; | |
940 | ||
1b0ba102 | 941 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
942 | if (errcode != 0) |
943 | { | |
944 | /* The transfer request might have crossed the boundary to an | |
945 | unallocated region of memory. Retry the transfer, requesting | |
946 | a single byte. */ | |
947 | tlen = 1; | |
948 | offset = 0; | |
b8eb5af0 | 949 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
950 | if (errcode != 0) |
951 | goto done; | |
952 | } | |
953 | ||
954 | if (bufptr - buffer + tlen > buffer_allocated) | |
955 | { | |
956 | unsigned int bytes; | |
957 | bytes = bufptr - buffer; | |
958 | buffer_allocated *= 2; | |
959 | buffer = xrealloc (buffer, buffer_allocated); | |
960 | bufptr = buffer + bytes; | |
961 | } | |
962 | ||
963 | for (i = 0; i < tlen; i++) | |
964 | { | |
965 | *bufptr++ = buf[i + offset]; | |
966 | if (buf[i + offset] == '\000') | |
967 | { | |
968 | nbytes_read += i + 1; | |
969 | goto done; | |
970 | } | |
971 | } | |
972 | ||
973 | memaddr += tlen; | |
974 | len -= tlen; | |
975 | nbytes_read += tlen; | |
976 | } | |
c5aa993b | 977 | done: |
6217bf3e | 978 | *string = buffer; |
c906108c SS |
979 | if (errnop != NULL) |
980 | *errnop = errcode; | |
c906108c SS |
981 | return nbytes_read; |
982 | } | |
983 | ||
8db32d44 AC |
984 | /* Find a section containing ADDR. */ |
985 | struct section_table * | |
986 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
987 | { | |
988 | struct section_table *secp; | |
989 | for (secp = target->to_sections; | |
990 | secp < target->to_sections_end; | |
991 | secp++) | |
992 | { | |
993 | if (addr >= secp->addr && addr < secp->endaddr) | |
994 | return secp; | |
995 | } | |
996 | return NULL; | |
997 | } | |
998 | ||
cf7a04e8 DJ |
999 | /* Perform a partial memory transfer. The arguments and return |
1000 | value are just as for target_xfer_partial. */ | |
1001 | ||
1002 | static LONGEST | |
1003 | memory_xfer_partial (struct target_ops *ops, void *readbuf, const void *writebuf, | |
1004 | ULONGEST memaddr, LONGEST len) | |
0779438d | 1005 | { |
cf7a04e8 DJ |
1006 | LONGEST res; |
1007 | int reg_len; | |
1008 | struct mem_region *region; | |
1009 | ||
1010 | /* Zero length requests are ok and require no work. */ | |
1011 | if (len == 0) | |
1012 | return 0; | |
1013 | ||
1014 | /* Try the executable file, if "trust-readonly-sections" is set. */ | |
1015 | if (readbuf != NULL && trust_readonly) | |
1016 | { | |
1017 | struct section_table *secp; | |
1018 | ||
1019 | secp = target_section_by_addr (ops, memaddr); | |
1020 | if (secp != NULL | |
1021 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1022 | & SEC_READONLY)) | |
1023 | return xfer_memory (memaddr, readbuf, len, 0, NULL, ops); | |
1024 | } | |
1025 | ||
98646950 UW |
1026 | /* Likewise for accesses to unmapped overlay sections. */ |
1027 | if (readbuf != NULL && overlay_debugging) | |
1028 | { | |
1029 | asection *section = find_pc_overlay (memaddr); | |
1030 | if (pc_in_unmapped_range (memaddr, section)) | |
1031 | return xfer_memory (memaddr, readbuf, len, 0, NULL, ops); | |
1032 | } | |
1033 | ||
cf7a04e8 DJ |
1034 | /* Try GDB's internal data cache. */ |
1035 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1036 | /* region->hi == 0 means there's no upper bound. */ |
1037 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1038 | reg_len = len; |
1039 | else | |
1040 | reg_len = region->hi - memaddr; | |
1041 | ||
1042 | switch (region->attrib.mode) | |
1043 | { | |
1044 | case MEM_RO: | |
1045 | if (writebuf != NULL) | |
1046 | return -1; | |
1047 | break; | |
1048 | ||
1049 | case MEM_WO: | |
1050 | if (readbuf != NULL) | |
1051 | return -1; | |
1052 | break; | |
a76d924d DJ |
1053 | |
1054 | case MEM_FLASH: | |
1055 | /* We only support writing to flash during "load" for now. */ | |
1056 | if (writebuf != NULL) | |
1057 | error (_("Writing to flash memory forbidden in this context")); | |
1058 | break; | |
4b5752d0 VP |
1059 | |
1060 | case MEM_NONE: | |
1061 | return -1; | |
cf7a04e8 DJ |
1062 | } |
1063 | ||
1064 | if (region->attrib.cache) | |
1065 | { | |
1066 | /* FIXME drow/2006-08-09: This call discards OPS, so the raw | |
1067 | memory request will start back at current_target. */ | |
1068 | if (readbuf != NULL) | |
1069 | res = dcache_xfer_memory (target_dcache, memaddr, readbuf, | |
1070 | reg_len, 0); | |
1071 | else | |
1072 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1073 | correctness dcache_xfer_memory should take readbuf and | |
1074 | writebuf. */ | |
1075 | res = dcache_xfer_memory (target_dcache, memaddr, | |
1076 | (void *) writebuf, | |
1077 | reg_len, 1); | |
1078 | if (res <= 0) | |
1079 | return -1; | |
1080 | else | |
8defab1a DJ |
1081 | { |
1082 | if (readbuf && !show_memory_breakpoints) | |
1083 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1084 | return res; | |
1085 | } | |
cf7a04e8 DJ |
1086 | } |
1087 | ||
1088 | /* If none of those methods found the memory we wanted, fall back | |
1089 | to a target partial transfer. Normally a single call to | |
1090 | to_xfer_partial is enough; if it doesn't recognize an object | |
1091 | it will call the to_xfer_partial of the next target down. | |
1092 | But for memory this won't do. Memory is the only target | |
1093 | object which can be read from more than one valid target. | |
1094 | A core file, for instance, could have some of memory but | |
1095 | delegate other bits to the target below it. So, we must | |
1096 | manually try all targets. */ | |
1097 | ||
1098 | do | |
1099 | { | |
1100 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1101 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1102 | if (res > 0) |
8defab1a | 1103 | break; |
cf7a04e8 | 1104 | |
5ad3a4ca DJ |
1105 | /* We want to continue past core files to executables, but not |
1106 | past a running target's memory. */ | |
1107 | if (ops->to_has_all_memory) | |
8defab1a | 1108 | break; |
5ad3a4ca | 1109 | |
cf7a04e8 DJ |
1110 | ops = ops->beneath; |
1111 | } | |
1112 | while (ops != NULL); | |
1113 | ||
8defab1a DJ |
1114 | if (readbuf && !show_memory_breakpoints) |
1115 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1116 | ||
cf7a04e8 DJ |
1117 | /* If we still haven't got anything, return the last error. We |
1118 | give up. */ | |
1119 | return res; | |
0779438d AC |
1120 | } |
1121 | ||
8defab1a DJ |
1122 | static void |
1123 | restore_show_memory_breakpoints (void *arg) | |
1124 | { | |
1125 | show_memory_breakpoints = (uintptr_t) arg; | |
1126 | } | |
1127 | ||
1128 | struct cleanup * | |
1129 | make_show_memory_breakpoints_cleanup (int show) | |
1130 | { | |
1131 | int current = show_memory_breakpoints; | |
1132 | show_memory_breakpoints = show; | |
1133 | ||
1134 | return make_cleanup (restore_show_memory_breakpoints, | |
1135 | (void *) (uintptr_t) current); | |
1136 | } | |
1137 | ||
27394598 AC |
1138 | static LONGEST |
1139 | target_xfer_partial (struct target_ops *ops, | |
1140 | enum target_object object, const char *annex, | |
1141 | void *readbuf, const void *writebuf, | |
1142 | ULONGEST offset, LONGEST len) | |
1143 | { | |
1144 | LONGEST retval; | |
1145 | ||
1146 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 DJ |
1147 | |
1148 | /* If this is a memory transfer, let the memory-specific code | |
1149 | have a look at it instead. Memory transfers are more | |
1150 | complicated. */ | |
1151 | if (object == TARGET_OBJECT_MEMORY) | |
1152 | retval = memory_xfer_partial (ops, readbuf, writebuf, offset, len); | |
1153 | else | |
1154 | { | |
1155 | enum target_object raw_object = object; | |
1156 | ||
1157 | /* If this is a raw memory transfer, request the normal | |
1158 | memory object from other layers. */ | |
1159 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1160 | raw_object = TARGET_OBJECT_MEMORY; | |
1161 | ||
1162 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1163 | writebuf, offset, len); | |
1164 | } | |
1165 | ||
27394598 AC |
1166 | if (targetdebug) |
1167 | { | |
1168 | const unsigned char *myaddr = NULL; | |
1169 | ||
1170 | fprintf_unfiltered (gdb_stdlog, | |
1171 | "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s", | |
1172 | ops->to_shortname, | |
1173 | (int) object, | |
1174 | (annex ? annex : "(null)"), | |
1175 | (long) readbuf, (long) writebuf, | |
623d3eb1 | 1176 | paddr_nz (offset), plongest (len), plongest (retval)); |
27394598 AC |
1177 | |
1178 | if (readbuf) | |
1179 | myaddr = readbuf; | |
1180 | if (writebuf) | |
1181 | myaddr = writebuf; | |
1182 | if (retval > 0 && myaddr != NULL) | |
1183 | { | |
1184 | int i; | |
2bc416ba | 1185 | |
27394598 AC |
1186 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1187 | for (i = 0; i < retval; i++) | |
1188 | { | |
1189 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
1190 | { | |
1191 | if (targetdebug < 2 && i > 0) | |
1192 | { | |
1193 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1194 | break; | |
1195 | } | |
1196 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1197 | } | |
2bc416ba | 1198 | |
27394598 AC |
1199 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1200 | } | |
1201 | } | |
2bc416ba | 1202 | |
27394598 AC |
1203 | fputc_unfiltered ('\n', gdb_stdlog); |
1204 | } | |
1205 | return retval; | |
1206 | } | |
1207 | ||
c906108c SS |
1208 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1209 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1210 | if any error occurs. | |
1211 | ||
1212 | If an error occurs, no guarantee is made about the contents of the data at | |
1213 | MYADDR. In particular, the caller should not depend upon partial reads | |
1214 | filling the buffer with good data. There is no way for the caller to know | |
1215 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 DJ |
1216 | deal with partial reads should call target_read (which will retry until |
1217 | it makes no progress, and then return how much was transferred). */ | |
c906108c SS |
1218 | |
1219 | int | |
fc1a4b47 | 1220 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 1221 | { |
cf7a04e8 DJ |
1222 | if (target_read (¤t_target, TARGET_OBJECT_MEMORY, NULL, |
1223 | myaddr, memaddr, len) == len) | |
1224 | return 0; | |
0779438d | 1225 | else |
cf7a04e8 | 1226 | return EIO; |
c906108c SS |
1227 | } |
1228 | ||
c906108c | 1229 | int |
fc1a4b47 | 1230 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1231 | { |
cf7a04e8 DJ |
1232 | if (target_write (¤t_target, TARGET_OBJECT_MEMORY, NULL, |
1233 | myaddr, memaddr, len) == len) | |
1234 | return 0; | |
0779438d | 1235 | else |
cf7a04e8 | 1236 | return EIO; |
c906108c | 1237 | } |
c5aa993b | 1238 | |
fd79ecee DJ |
1239 | /* Fetch the target's memory map. */ |
1240 | ||
1241 | VEC(mem_region_s) * | |
1242 | target_memory_map (void) | |
1243 | { | |
1244 | VEC(mem_region_s) *result; | |
1245 | struct mem_region *last_one, *this_one; | |
1246 | int ix; | |
1247 | struct target_ops *t; | |
1248 | ||
1249 | if (targetdebug) | |
1250 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1251 | ||
1252 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1253 | if (t->to_memory_map != NULL) | |
1254 | break; | |
1255 | ||
1256 | if (t == NULL) | |
1257 | return NULL; | |
1258 | ||
1259 | result = t->to_memory_map (t); | |
1260 | if (result == NULL) | |
1261 | return NULL; | |
1262 | ||
1263 | qsort (VEC_address (mem_region_s, result), | |
1264 | VEC_length (mem_region_s, result), | |
1265 | sizeof (struct mem_region), mem_region_cmp); | |
1266 | ||
1267 | /* Check that regions do not overlap. Simultaneously assign | |
1268 | a numbering for the "mem" commands to use to refer to | |
1269 | each region. */ | |
1270 | last_one = NULL; | |
1271 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1272 | { | |
1273 | this_one->number = ix; | |
1274 | ||
1275 | if (last_one && last_one->hi > this_one->lo) | |
1276 | { | |
1277 | warning (_("Overlapping regions in memory map: ignoring")); | |
1278 | VEC_free (mem_region_s, result); | |
1279 | return NULL; | |
1280 | } | |
1281 | last_one = this_one; | |
1282 | } | |
1283 | ||
1284 | return result; | |
1285 | } | |
1286 | ||
a76d924d DJ |
1287 | void |
1288 | target_flash_erase (ULONGEST address, LONGEST length) | |
1289 | { | |
1290 | struct target_ops *t; | |
1291 | ||
1292 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1293 | if (t->to_flash_erase != NULL) | |
1294 | { | |
1295 | if (targetdebug) | |
1296 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1297 | paddr (address), phex (length, 0)); | |
8944021f DJ |
1298 | t->to_flash_erase (t, address, length); |
1299 | return; | |
a76d924d DJ |
1300 | } |
1301 | ||
1302 | tcomplain (); | |
1303 | } | |
1304 | ||
1305 | void | |
1306 | target_flash_done (void) | |
1307 | { | |
1308 | struct target_ops *t; | |
1309 | ||
1310 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1311 | if (t->to_flash_done != NULL) | |
1312 | { | |
1313 | if (targetdebug) | |
1314 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
8944021f DJ |
1315 | t->to_flash_done (t); |
1316 | return; | |
a76d924d DJ |
1317 | } |
1318 | ||
1319 | tcomplain (); | |
1320 | } | |
1321 | ||
4aa7a7f5 JJ |
1322 | #ifndef target_stopped_data_address_p |
1323 | int | |
1324 | target_stopped_data_address_p (struct target_ops *target) | |
1325 | { | |
aa869812 AC |
1326 | if (target->to_stopped_data_address |
1327 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero) | |
4aa7a7f5 | 1328 | return 0; |
aa869812 AC |
1329 | if (target->to_stopped_data_address == debug_to_stopped_data_address |
1330 | && (debug_target.to_stopped_data_address | |
1331 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero)) | |
1332 | return 0; | |
1333 | return 1; | |
4aa7a7f5 JJ |
1334 | } |
1335 | #endif | |
1336 | ||
920d2a44 AC |
1337 | static void |
1338 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1339 | struct cmd_list_element *c, const char *value) | |
1340 | { | |
1341 | fprintf_filtered (file, _("\ | |
1342 | Mode for reading from readonly sections is %s.\n"), | |
1343 | value); | |
1344 | } | |
3a11626d | 1345 | |
1e3ff5ad AC |
1346 | /* More generic transfers. */ |
1347 | ||
0088c768 | 1348 | static LONGEST |
8aa91c1e | 1349 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1350 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1351 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1352 | { |
1353 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1354 | && ops->deprecated_xfer_memory != NULL) |
1355 | /* If available, fall back to the target's | |
1356 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1357 | { |
4b8a223f | 1358 | int xfered = -1; |
0088c768 | 1359 | errno = 0; |
4b8a223f AC |
1360 | if (writebuf != NULL) |
1361 | { | |
1362 | void *buffer = xmalloc (len); | |
1363 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1364 | memcpy (buffer, writebuf, len); | |
c8e73a31 AC |
1365 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1366 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1367 | do_cleanups (cleanup); |
1368 | } | |
1369 | if (readbuf != NULL) | |
244e85c8 MS |
1370 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1371 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1372 | if (xfered > 0) |
1373 | return xfered; | |
1374 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1375 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1376 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1377 | return 0; |
1378 | else | |
1379 | return -1; | |
1380 | } | |
1381 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1382 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1383 | readbuf, writebuf, offset, len); | |
1384 | else | |
1385 | return -1; | |
1386 | } | |
1387 | ||
1388 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1389 | it does not need to handle memory specially; it just passes all | |
1390 | requests down the stack. */ | |
1391 | ||
1392 | static LONGEST | |
1393 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
1394 | const char *annex, gdb_byte *readbuf, | |
1395 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1396 | { | |
1397 | if (ops->beneath != NULL) | |
1398 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1399 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1400 | else |
1401 | return -1; | |
1402 | } | |
1403 | ||
1404 | /* Target vector read/write partial wrapper functions. | |
1405 | ||
1406 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1407 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1408 | easier. */ | |
1409 | ||
13547ab6 | 1410 | static LONGEST |
1e3ff5ad AC |
1411 | target_read_partial (struct target_ops *ops, |
1412 | enum target_object object, | |
1b0ba102 | 1413 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1414 | ULONGEST offset, LONGEST len) |
1415 | { | |
27394598 | 1416 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1417 | } |
1418 | ||
13547ab6 | 1419 | static LONGEST |
1e3ff5ad AC |
1420 | target_write_partial (struct target_ops *ops, |
1421 | enum target_object object, | |
1b0ba102 | 1422 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1423 | ULONGEST offset, LONGEST len) |
1424 | { | |
27394598 | 1425 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1426 | } |
1427 | ||
1428 | /* Wrappers to perform the full transfer. */ | |
1429 | LONGEST | |
1430 | target_read (struct target_ops *ops, | |
1431 | enum target_object object, | |
1b0ba102 | 1432 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1433 | ULONGEST offset, LONGEST len) |
1434 | { | |
1435 | LONGEST xfered = 0; | |
1436 | while (xfered < len) | |
1437 | { | |
0088c768 | 1438 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 1439 | (gdb_byte *) buf + xfered, |
0088c768 | 1440 | offset + xfered, len - xfered); |
1e3ff5ad | 1441 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
1442 | if (xfer == 0) |
1443 | return xfered; | |
1444 | if (xfer < 0) | |
0088c768 | 1445 | return -1; |
1e3ff5ad AC |
1446 | xfered += xfer; |
1447 | QUIT; | |
1448 | } | |
1449 | return len; | |
1450 | } | |
1451 | ||
d5086790 VP |
1452 | LONGEST |
1453 | target_read_until_error (struct target_ops *ops, | |
1454 | enum target_object object, | |
1455 | const char *annex, gdb_byte *buf, | |
1456 | ULONGEST offset, LONGEST len) | |
1457 | { | |
1458 | LONGEST xfered = 0; | |
1459 | while (xfered < len) | |
1460 | { | |
1461 | LONGEST xfer = target_read_partial (ops, object, annex, | |
1462 | (gdb_byte *) buf + xfered, | |
1463 | offset + xfered, len - xfered); | |
1464 | /* Call an observer, notifying them of the xfer progress? */ | |
1465 | if (xfer == 0) | |
1466 | return xfered; | |
1467 | if (xfer < 0) | |
1468 | { | |
1469 | /* We've got an error. Try to read in smaller blocks. */ | |
1470 | ULONGEST start = offset + xfered; | |
1471 | ULONGEST remaining = len - xfered; | |
1472 | ULONGEST half; | |
1473 | ||
1474 | /* If an attempt was made to read a random memory address, | |
1475 | it's likely that the very first byte is not accessible. | |
1476 | Try reading the first byte, to avoid doing log N tries | |
1477 | below. */ | |
1478 | xfer = target_read_partial (ops, object, annex, | |
1479 | (gdb_byte *) buf + xfered, start, 1); | |
1480 | if (xfer <= 0) | |
1481 | return xfered; | |
1482 | start += 1; | |
1483 | remaining -= 1; | |
1484 | half = remaining/2; | |
1485 | ||
1486 | while (half > 0) | |
1487 | { | |
1488 | xfer = target_read_partial (ops, object, annex, | |
1489 | (gdb_byte *) buf + xfered, | |
1490 | start, half); | |
1491 | if (xfer == 0) | |
1492 | return xfered; | |
1493 | if (xfer < 0) | |
1494 | { | |
1495 | remaining = half; | |
1496 | } | |
1497 | else | |
1498 | { | |
1499 | /* We have successfully read the first half. So, the | |
1500 | error must be in the second half. Adjust start and | |
1501 | remaining to point at the second half. */ | |
1502 | xfered += xfer; | |
1503 | start += xfer; | |
1504 | remaining -= xfer; | |
1505 | } | |
1506 | half = remaining/2; | |
1507 | } | |
1508 | ||
1509 | return xfered; | |
1510 | } | |
1511 | xfered += xfer; | |
1512 | QUIT; | |
1513 | } | |
1514 | return len; | |
1515 | } | |
1516 | ||
1517 | ||
cf7a04e8 DJ |
1518 | /* An alternative to target_write with progress callbacks. */ |
1519 | ||
1e3ff5ad | 1520 | LONGEST |
cf7a04e8 DJ |
1521 | target_write_with_progress (struct target_ops *ops, |
1522 | enum target_object object, | |
1523 | const char *annex, const gdb_byte *buf, | |
1524 | ULONGEST offset, LONGEST len, | |
1525 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
1526 | { |
1527 | LONGEST xfered = 0; | |
a76d924d DJ |
1528 | |
1529 | /* Give the progress callback a chance to set up. */ | |
1530 | if (progress) | |
1531 | (*progress) (0, baton); | |
1532 | ||
1e3ff5ad AC |
1533 | while (xfered < len) |
1534 | { | |
1535 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 1536 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 1537 | offset + xfered, len - xfered); |
cf7a04e8 | 1538 | |
13547ab6 DJ |
1539 | if (xfer == 0) |
1540 | return xfered; | |
1541 | if (xfer < 0) | |
0088c768 | 1542 | return -1; |
cf7a04e8 DJ |
1543 | |
1544 | if (progress) | |
1545 | (*progress) (xfer, baton); | |
1546 | ||
1e3ff5ad AC |
1547 | xfered += xfer; |
1548 | QUIT; | |
1549 | } | |
1550 | return len; | |
1551 | } | |
1552 | ||
cf7a04e8 DJ |
1553 | LONGEST |
1554 | target_write (struct target_ops *ops, | |
1555 | enum target_object object, | |
1556 | const char *annex, const gdb_byte *buf, | |
1557 | ULONGEST offset, LONGEST len) | |
1558 | { | |
1559 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1560 | NULL, NULL); | |
1561 | } | |
1562 | ||
159f81f3 DJ |
1563 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1564 | the size of the transferred data. PADDING additional bytes are | |
1565 | available in *BUF_P. This is a helper function for | |
1566 | target_read_alloc; see the declaration of that function for more | |
1567 | information. */ | |
13547ab6 | 1568 | |
159f81f3 DJ |
1569 | static LONGEST |
1570 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
1571 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
1572 | { |
1573 | size_t buf_alloc, buf_pos; | |
1574 | gdb_byte *buf; | |
1575 | LONGEST n; | |
1576 | ||
1577 | /* This function does not have a length parameter; it reads the | |
1578 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1579 | from one target and partly from another (in a different stratum, | |
1580 | e.g. a core file and an executable). Both reasons make it | |
1581 | unsuitable for reading memory. */ | |
1582 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1583 | ||
1584 | /* Start by reading up to 4K at a time. The target will throttle | |
1585 | this number down if necessary. */ | |
1586 | buf_alloc = 4096; | |
1587 | buf = xmalloc (buf_alloc); | |
1588 | buf_pos = 0; | |
1589 | while (1) | |
1590 | { | |
1591 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 1592 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
1593 | if (n < 0) |
1594 | { | |
1595 | /* An error occurred. */ | |
1596 | xfree (buf); | |
1597 | return -1; | |
1598 | } | |
1599 | else if (n == 0) | |
1600 | { | |
1601 | /* Read all there was. */ | |
1602 | if (buf_pos == 0) | |
1603 | xfree (buf); | |
1604 | else | |
1605 | *buf_p = buf; | |
1606 | return buf_pos; | |
1607 | } | |
1608 | ||
1609 | buf_pos += n; | |
1610 | ||
1611 | /* If the buffer is filling up, expand it. */ | |
1612 | if (buf_alloc < buf_pos * 2) | |
1613 | { | |
1614 | buf_alloc *= 2; | |
1615 | buf = xrealloc (buf, buf_alloc); | |
1616 | } | |
1617 | ||
1618 | QUIT; | |
1619 | } | |
1620 | } | |
1621 | ||
159f81f3 DJ |
1622 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1623 | the size of the transferred data. See the declaration in "target.h" | |
1624 | function for more information about the return value. */ | |
1625 | ||
1626 | LONGEST | |
1627 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
1628 | const char *annex, gdb_byte **buf_p) | |
1629 | { | |
1630 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
1631 | } | |
1632 | ||
1633 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
1634 | returned as a string, allocated using xmalloc. If an error occurs | |
1635 | or the transfer is unsupported, NULL is returned. Empty objects | |
1636 | are returned as allocated but empty strings. A warning is issued | |
1637 | if the result contains any embedded NUL bytes. */ | |
1638 | ||
1639 | char * | |
1640 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
1641 | const char *annex) | |
1642 | { | |
1643 | gdb_byte *buffer; | |
1644 | LONGEST transferred; | |
1645 | ||
1646 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); | |
1647 | ||
1648 | if (transferred < 0) | |
1649 | return NULL; | |
1650 | ||
1651 | if (transferred == 0) | |
1652 | return xstrdup (""); | |
1653 | ||
1654 | buffer[transferred] = 0; | |
1655 | if (strlen (buffer) < transferred) | |
1656 | warning (_("target object %d, annex %s, " | |
1657 | "contained unexpected null characters"), | |
1658 | (int) object, annex ? annex : "(none)"); | |
1659 | ||
1660 | return (char *) buffer; | |
1661 | } | |
1662 | ||
b6591e8b AC |
1663 | /* Memory transfer methods. */ |
1664 | ||
1665 | void | |
1b0ba102 | 1666 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1667 | LONGEST len) |
1668 | { | |
1669 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1670 | != len) | |
1671 | memory_error (EIO, addr); | |
1672 | } | |
1673 | ||
1674 | ULONGEST | |
1675 | get_target_memory_unsigned (struct target_ops *ops, | |
1676 | CORE_ADDR addr, int len) | |
1677 | { | |
f6519ebc | 1678 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1679 | |
1680 | gdb_assert (len <= sizeof (buf)); | |
1681 | get_target_memory (ops, addr, buf, len); | |
1682 | return extract_unsigned_integer (buf, len); | |
1683 | } | |
1684 | ||
c906108c | 1685 | static void |
fba45db2 | 1686 | target_info (char *args, int from_tty) |
c906108c SS |
1687 | { |
1688 | struct target_ops *t; | |
c906108c | 1689 | int has_all_mem = 0; |
c5aa993b | 1690 | |
c906108c | 1691 | if (symfile_objfile != NULL) |
a3f17187 | 1692 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 1693 | |
258b763a | 1694 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1695 | { |
c906108c SS |
1696 | if (!t->to_has_memory) |
1697 | continue; | |
1698 | ||
c5aa993b | 1699 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1700 | continue; |
1701 | if (has_all_mem) | |
a3f17187 | 1702 | printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n")); |
c5aa993b JM |
1703 | printf_unfiltered ("%s:\n", t->to_longname); |
1704 | (t->to_files_info) (t); | |
c906108c SS |
1705 | has_all_mem = t->to_has_all_memory; |
1706 | } | |
1707 | } | |
1708 | ||
fd79ecee DJ |
1709 | /* This function is called before any new inferior is created, e.g. |
1710 | by running a program, attaching, or connecting to a target. | |
1711 | It cleans up any state from previous invocations which might | |
1712 | change between runs. This is a subset of what target_preopen | |
1713 | resets (things which might change between targets). */ | |
1714 | ||
1715 | void | |
1716 | target_pre_inferior (int from_tty) | |
1717 | { | |
b9db4ced UW |
1718 | /* Clear out solib state. Otherwise the solib state of the previous |
1719 | inferior might have survived and is entirely wrong for the new | |
1720 | target. This has been observed on GNU/Linux using glibc 2.3. How | |
1721 | to reproduce: | |
1722 | ||
1723 | bash$ ./foo& | |
1724 | [1] 4711 | |
1725 | bash$ ./foo& | |
1726 | [1] 4712 | |
1727 | bash$ gdb ./foo | |
1728 | [...] | |
1729 | (gdb) attach 4711 | |
1730 | (gdb) detach | |
1731 | (gdb) attach 4712 | |
1732 | Cannot access memory at address 0xdeadbeef | |
1733 | */ | |
1734 | no_shared_libraries (NULL, from_tty); | |
1735 | ||
fd79ecee | 1736 | invalidate_target_mem_regions (); |
424163ea DJ |
1737 | |
1738 | target_clear_description (); | |
fd79ecee DJ |
1739 | } |
1740 | ||
c906108c SS |
1741 | /* This is to be called by the open routine before it does |
1742 | anything. */ | |
1743 | ||
1744 | void | |
fba45db2 | 1745 | target_preopen (int from_tty) |
c906108c | 1746 | { |
c5aa993b | 1747 | dont_repeat (); |
c906108c SS |
1748 | |
1749 | if (target_has_execution) | |
c5aa993b | 1750 | { |
adf40b2e | 1751 | if (!from_tty |
e2e0b3e5 | 1752 | || query (_("A program is being debugged already. Kill it? "))) |
c5aa993b | 1753 | target_kill (); |
c906108c | 1754 | else |
8a3fe4f8 | 1755 | error (_("Program not killed.")); |
c906108c SS |
1756 | } |
1757 | ||
1758 | /* Calling target_kill may remove the target from the stack. But if | |
1759 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
1760 | /* Leave the exec target, though. The user may be switching from a |
1761 | live process to a core of the same program. */ | |
1762 | pop_all_targets_above (file_stratum, 0); | |
fd79ecee DJ |
1763 | |
1764 | target_pre_inferior (from_tty); | |
c906108c SS |
1765 | } |
1766 | ||
1767 | /* Detach a target after doing deferred register stores. */ | |
1768 | ||
1769 | void | |
fba45db2 | 1770 | target_detach (char *args, int from_tty) |
c906108c | 1771 | { |
74960c60 VP |
1772 | /* If we're in breakpoints-always-inserted mode, have to |
1773 | remove them before detaching. */ | |
1774 | remove_breakpoints (); | |
1775 | ||
c906108c SS |
1776 | (current_target.to_detach) (args, from_tty); |
1777 | } | |
1778 | ||
6ad8ae5c DJ |
1779 | void |
1780 | target_disconnect (char *args, int from_tty) | |
1781 | { | |
597320e7 DJ |
1782 | struct target_ops *t; |
1783 | ||
74960c60 VP |
1784 | /* If we're in breakpoints-always-inserted mode, have to |
1785 | remove them before disconnecting. */ | |
1786 | remove_breakpoints (); | |
1787 | ||
597320e7 DJ |
1788 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
1789 | if (t->to_disconnect != NULL) | |
1790 | { | |
1791 | if (targetdebug) | |
1792 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1793 | args, from_tty); | |
1794 | t->to_disconnect (t, args, from_tty); | |
1795 | return; | |
1796 | } | |
1797 | ||
1798 | tcomplain (); | |
6ad8ae5c DJ |
1799 | } |
1800 | ||
e1ac3328 VP |
1801 | void |
1802 | target_resume (ptid_t ptid, int step, enum target_signal signal) | |
1803 | { | |
1804 | dcache_invalidate (target_dcache); | |
1805 | (*current_target.to_resume) (ptid, step, signal); | |
8ea051c5 | 1806 | set_executing (ptid, 1); |
e1ac3328 | 1807 | set_running (ptid, 1); |
e1ac3328 | 1808 | } |
ee057212 DJ |
1809 | /* Look through the list of possible targets for a target that can |
1810 | follow forks. */ | |
1811 | ||
1812 | int | |
1813 | target_follow_fork (int follow_child) | |
1814 | { | |
1815 | struct target_ops *t; | |
1816 | ||
1817 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1818 | { | |
1819 | if (t->to_follow_fork != NULL) | |
1820 | { | |
1821 | int retval = t->to_follow_fork (t, follow_child); | |
1822 | if (targetdebug) | |
1823 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
1824 | follow_child, retval); | |
1825 | return retval; | |
1826 | } | |
1827 | } | |
1828 | ||
1829 | /* Some target returned a fork event, but did not know how to follow it. */ | |
1830 | internal_error (__FILE__, __LINE__, | |
1831 | "could not find a target to follow fork"); | |
1832 | } | |
1833 | ||
424163ea DJ |
1834 | /* Look for a target which can describe architectural features, starting |
1835 | from TARGET. If we find one, return its description. */ | |
1836 | ||
1837 | const struct target_desc * | |
1838 | target_read_description (struct target_ops *target) | |
1839 | { | |
1840 | struct target_ops *t; | |
1841 | ||
1842 | for (t = target; t != NULL; t = t->beneath) | |
1843 | if (t->to_read_description != NULL) | |
1844 | { | |
1845 | const struct target_desc *tdesc; | |
1846 | ||
1847 | tdesc = t->to_read_description (t); | |
1848 | if (tdesc) | |
1849 | return tdesc; | |
1850 | } | |
1851 | ||
1852 | return NULL; | |
1853 | } | |
1854 | ||
08388c79 DE |
1855 | /* The default implementation of to_search_memory. |
1856 | This implements a basic search of memory, reading target memory and | |
1857 | performing the search here (as opposed to performing the search in on the | |
1858 | target side with, for example, gdbserver). */ | |
1859 | ||
1860 | int | |
1861 | simple_search_memory (struct target_ops *ops, | |
1862 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
1863 | const gdb_byte *pattern, ULONGEST pattern_len, | |
1864 | CORE_ADDR *found_addrp) | |
1865 | { | |
1866 | /* NOTE: also defined in find.c testcase. */ | |
1867 | #define SEARCH_CHUNK_SIZE 16000 | |
1868 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
1869 | /* Buffer to hold memory contents for searching. */ | |
1870 | gdb_byte *search_buf; | |
1871 | unsigned search_buf_size; | |
1872 | struct cleanup *old_cleanups; | |
1873 | ||
1874 | search_buf_size = chunk_size + pattern_len - 1; | |
1875 | ||
1876 | /* No point in trying to allocate a buffer larger than the search space. */ | |
1877 | if (search_space_len < search_buf_size) | |
1878 | search_buf_size = search_space_len; | |
1879 | ||
1880 | search_buf = malloc (search_buf_size); | |
1881 | if (search_buf == NULL) | |
5e1471f5 | 1882 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
1883 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
1884 | ||
1885 | /* Prime the search buffer. */ | |
1886 | ||
1887 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1888 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
1889 | { | |
5e1471f5 | 1890 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
1891 | hex_string (start_addr)); |
1892 | do_cleanups (old_cleanups); | |
1893 | return -1; | |
1894 | } | |
1895 | ||
1896 | /* Perform the search. | |
1897 | ||
1898 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
1899 | When we've scanned N bytes we copy the trailing bytes to the start and | |
1900 | read in another N bytes. */ | |
1901 | ||
1902 | while (search_space_len >= pattern_len) | |
1903 | { | |
1904 | gdb_byte *found_ptr; | |
1905 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
1906 | ||
1907 | found_ptr = memmem (search_buf, nr_search_bytes, | |
1908 | pattern, pattern_len); | |
1909 | ||
1910 | if (found_ptr != NULL) | |
1911 | { | |
1912 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
1913 | *found_addrp = found_addr; | |
1914 | do_cleanups (old_cleanups); | |
1915 | return 1; | |
1916 | } | |
1917 | ||
1918 | /* Not found in this chunk, skip to next chunk. */ | |
1919 | ||
1920 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
1921 | if (search_space_len >= chunk_size) | |
1922 | search_space_len -= chunk_size; | |
1923 | else | |
1924 | search_space_len = 0; | |
1925 | ||
1926 | if (search_space_len >= pattern_len) | |
1927 | { | |
1928 | unsigned keep_len = search_buf_size - chunk_size; | |
1929 | CORE_ADDR read_addr = start_addr + keep_len; | |
1930 | int nr_to_read; | |
1931 | ||
1932 | /* Copy the trailing part of the previous iteration to the front | |
1933 | of the buffer for the next iteration. */ | |
1934 | gdb_assert (keep_len == pattern_len - 1); | |
1935 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
1936 | ||
1937 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
1938 | ||
1939 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
1940 | search_buf + keep_len, read_addr, | |
1941 | nr_to_read) != nr_to_read) | |
1942 | { | |
5e1471f5 | 1943 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
1944 | hex_string (read_addr)); |
1945 | do_cleanups (old_cleanups); | |
1946 | return -1; | |
1947 | } | |
1948 | ||
1949 | start_addr += chunk_size; | |
1950 | } | |
1951 | } | |
1952 | ||
1953 | /* Not found. */ | |
1954 | ||
1955 | do_cleanups (old_cleanups); | |
1956 | return 0; | |
1957 | } | |
1958 | ||
1959 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
1960 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
1961 | ||
1962 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
1963 | requiring halting of the search (e.g. memory read error). | |
1964 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
1965 | ||
1966 | int | |
1967 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
1968 | const gdb_byte *pattern, ULONGEST pattern_len, | |
1969 | CORE_ADDR *found_addrp) | |
1970 | { | |
1971 | struct target_ops *t; | |
1972 | int found; | |
1973 | ||
1974 | /* We don't use INHERIT to set current_target.to_search_memory, | |
1975 | so we have to scan the target stack and handle targetdebug | |
1976 | ourselves. */ | |
1977 | ||
1978 | if (targetdebug) | |
1979 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
1980 | hex_string (start_addr)); | |
1981 | ||
1982 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1983 | if (t->to_search_memory != NULL) | |
1984 | break; | |
1985 | ||
1986 | if (t != NULL) | |
1987 | { | |
1988 | found = t->to_search_memory (t, start_addr, search_space_len, | |
1989 | pattern, pattern_len, found_addrp); | |
1990 | } | |
1991 | else | |
1992 | { | |
1993 | /* If a special version of to_search_memory isn't available, use the | |
1994 | simple version. */ | |
1995 | found = simple_search_memory (¤t_target, | |
1996 | start_addr, search_space_len, | |
1997 | pattern, pattern_len, found_addrp); | |
1998 | } | |
1999 | ||
2000 | if (targetdebug) | |
2001 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2002 | ||
2003 | return found; | |
2004 | } | |
2005 | ||
8edfe269 DJ |
2006 | /* Look through the currently pushed targets. If none of them will |
2007 | be able to restart the currently running process, issue an error | |
2008 | message. */ | |
2009 | ||
2010 | void | |
2011 | target_require_runnable (void) | |
2012 | { | |
2013 | struct target_ops *t; | |
2014 | ||
2015 | for (t = target_stack; t != NULL; t = t->beneath) | |
2016 | { | |
2017 | /* If this target knows how to create a new program, then | |
2018 | assume we will still be able to after killing the current | |
2019 | one. Either killing and mourning will not pop T, or else | |
2020 | find_default_run_target will find it again. */ | |
2021 | if (t->to_create_inferior != NULL) | |
2022 | return; | |
2023 | ||
2024 | /* Do not worry about thread_stratum targets that can not | |
2025 | create inferiors. Assume they will be pushed again if | |
2026 | necessary, and continue to the process_stratum. */ | |
2027 | if (t->to_stratum == thread_stratum) | |
2028 | continue; | |
2029 | ||
2030 | error (_("\ | |
2031 | The \"%s\" target does not support \"run\". Try \"help target\" or \"continue\"."), | |
2032 | t->to_shortname); | |
2033 | } | |
2034 | ||
2035 | /* This function is only called if the target is running. In that | |
2036 | case there should have been a process_stratum target and it | |
2037 | should either know how to create inferiors, or not... */ | |
2038 | internal_error (__FILE__, __LINE__, "No targets found"); | |
2039 | } | |
2040 | ||
c906108c SS |
2041 | /* Look through the list of possible targets for a target that can |
2042 | execute a run or attach command without any other data. This is | |
2043 | used to locate the default process stratum. | |
2044 | ||
5f667f2d PA |
2045 | If DO_MESG is not NULL, the result is always valid (error() is |
2046 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2047 | |
2048 | static struct target_ops * | |
fba45db2 | 2049 | find_default_run_target (char *do_mesg) |
c906108c SS |
2050 | { |
2051 | struct target_ops **t; | |
2052 | struct target_ops *runable = NULL; | |
2053 | int count; | |
2054 | ||
2055 | count = 0; | |
2056 | ||
2057 | for (t = target_structs; t < target_structs + target_struct_size; | |
2058 | ++t) | |
2059 | { | |
c5aa993b | 2060 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2061 | { |
2062 | runable = *t; | |
2063 | ++count; | |
2064 | } | |
2065 | } | |
2066 | ||
2067 | if (count != 1) | |
5f667f2d PA |
2068 | { |
2069 | if (do_mesg) | |
2070 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2071 | else | |
2072 | return NULL; | |
2073 | } | |
c906108c SS |
2074 | |
2075 | return runable; | |
2076 | } | |
2077 | ||
2078 | void | |
fba45db2 | 2079 | find_default_attach (char *args, int from_tty) |
c906108c SS |
2080 | { |
2081 | struct target_ops *t; | |
2082 | ||
c5aa993b | 2083 | t = find_default_run_target ("attach"); |
c906108c SS |
2084 | (t->to_attach) (args, from_tty); |
2085 | return; | |
2086 | } | |
2087 | ||
c906108c | 2088 | void |
c27cda74 AC |
2089 | find_default_create_inferior (char *exec_file, char *allargs, char **env, |
2090 | int from_tty) | |
c906108c SS |
2091 | { |
2092 | struct target_ops *t; | |
2093 | ||
c5aa993b | 2094 | t = find_default_run_target ("run"); |
c27cda74 | 2095 | (t->to_create_inferior) (exec_file, allargs, env, from_tty); |
c906108c SS |
2096 | return; |
2097 | } | |
2098 | ||
b84876c2 PA |
2099 | int |
2100 | find_default_can_async_p (void) | |
2101 | { | |
2102 | struct target_ops *t; | |
2103 | ||
5f667f2d PA |
2104 | /* This may be called before the target is pushed on the stack; |
2105 | look for the default process stratum. If there's none, gdb isn't | |
2106 | configured with a native debugger, and target remote isn't | |
2107 | connected yet. */ | |
2108 | t = find_default_run_target (NULL); | |
2109 | if (t && t->to_can_async_p) | |
b84876c2 PA |
2110 | return (t->to_can_async_p) (); |
2111 | return 0; | |
2112 | } | |
2113 | ||
2114 | int | |
2115 | find_default_is_async_p (void) | |
2116 | { | |
2117 | struct target_ops *t; | |
2118 | ||
5f667f2d PA |
2119 | /* This may be called before the target is pushed on the stack; |
2120 | look for the default process stratum. If there's none, gdb isn't | |
2121 | configured with a native debugger, and target remote isn't | |
2122 | connected yet. */ | |
2123 | t = find_default_run_target (NULL); | |
2124 | if (t && t->to_is_async_p) | |
b84876c2 PA |
2125 | return (t->to_is_async_p) (); |
2126 | return 0; | |
2127 | } | |
2128 | ||
9908b566 VP |
2129 | int |
2130 | find_default_supports_non_stop (void) | |
2131 | { | |
2132 | struct target_ops *t; | |
2133 | ||
2134 | t = find_default_run_target (NULL); | |
2135 | if (t && t->to_supports_non_stop) | |
2136 | return (t->to_supports_non_stop) (); | |
2137 | return 0; | |
2138 | } | |
2139 | ||
2140 | int | |
2141 | target_supports_non_stop () | |
2142 | { | |
2143 | struct target_ops *t; | |
2144 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
2145 | if (t->to_supports_non_stop) | |
2146 | return t->to_supports_non_stop (); | |
2147 | ||
2148 | return 0; | |
2149 | } | |
2150 | ||
2151 | ||
e0d24f8d WZ |
2152 | static int |
2153 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2154 | { | |
2a3cdf79 | 2155 | return (len <= TYPE_LENGTH (builtin_type_void_data_ptr)); |
ccaa32c7 GS |
2156 | } |
2157 | ||
5009afc5 AS |
2158 | static int |
2159 | default_watchpoint_addr_within_range (struct target_ops *target, | |
2160 | CORE_ADDR addr, | |
2161 | CORE_ADDR start, int length) | |
2162 | { | |
2163 | return addr >= start && addr < start + length; | |
2164 | } | |
2165 | ||
c906108c | 2166 | static int |
fba45db2 | 2167 | return_zero (void) |
c906108c SS |
2168 | { |
2169 | return 0; | |
2170 | } | |
2171 | ||
2172 | static int | |
fba45db2 | 2173 | return_one (void) |
c906108c SS |
2174 | { |
2175 | return 1; | |
2176 | } | |
2177 | ||
ccaa32c7 GS |
2178 | static int |
2179 | return_minus_one (void) | |
2180 | { | |
2181 | return -1; | |
2182 | } | |
2183 | ||
6426a772 JM |
2184 | /* |
2185 | * Resize the to_sections pointer. Also make sure that anyone that | |
2186 | * was holding on to an old value of it gets updated. | |
2187 | * Returns the old size. | |
2188 | */ | |
2189 | ||
2190 | int | |
2191 | target_resize_to_sections (struct target_ops *target, int num_added) | |
2192 | { | |
2193 | struct target_ops **t; | |
2194 | struct section_table *old_value; | |
2195 | int old_count; | |
2196 | ||
2197 | old_value = target->to_sections; | |
2198 | ||
2199 | if (target->to_sections) | |
2200 | { | |
2201 | old_count = target->to_sections_end - target->to_sections; | |
2202 | target->to_sections = (struct section_table *) | |
2203 | xrealloc ((char *) target->to_sections, | |
2204 | (sizeof (struct section_table)) * (num_added + old_count)); | |
2205 | } | |
2206 | else | |
2207 | { | |
2208 | old_count = 0; | |
2209 | target->to_sections = (struct section_table *) | |
2210 | xmalloc ((sizeof (struct section_table)) * num_added); | |
2211 | } | |
2212 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
2213 | ||
2214 | /* Check to see if anyone else was pointing to this structure. | |
2215 | If old_value was null, then no one was. */ | |
2bc416ba | 2216 | |
6426a772 JM |
2217 | if (old_value) |
2218 | { | |
2219 | for (t = target_structs; t < target_structs + target_struct_size; | |
2220 | ++t) | |
2221 | { | |
2222 | if ((*t)->to_sections == old_value) | |
2223 | { | |
2224 | (*t)->to_sections = target->to_sections; | |
2225 | (*t)->to_sections_end = target->to_sections_end; | |
2226 | } | |
2227 | } | |
e354df01 NW |
2228 | /* There is a flattened view of the target stack in current_target, |
2229 | so its to_sections pointer might also need updating. */ | |
2230 | if (current_target.to_sections == old_value) | |
2231 | { | |
2232 | current_target.to_sections = target->to_sections; | |
2233 | current_target.to_sections_end = target->to_sections_end; | |
2234 | } | |
6426a772 | 2235 | } |
2bc416ba | 2236 | |
6426a772 JM |
2237 | return old_count; |
2238 | ||
2239 | } | |
2240 | ||
07cd4b97 JB |
2241 | /* Remove all target sections taken from ABFD. |
2242 | ||
2243 | Scan the current target stack for targets whose section tables | |
2244 | refer to sections from BFD, and remove those sections. We use this | |
2245 | when we notice that the inferior has unloaded a shared object, for | |
2246 | example. */ | |
2247 | void | |
2248 | remove_target_sections (bfd *abfd) | |
2249 | { | |
2250 | struct target_ops **t; | |
2251 | ||
2252 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
2253 | { | |
2254 | struct section_table *src, *dest; | |
2255 | ||
2256 | dest = (*t)->to_sections; | |
2257 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
2258 | if (src->bfd != abfd) | |
2259 | { | |
2260 | /* Keep this section. */ | |
2261 | if (dest < src) *dest = *src; | |
2262 | dest++; | |
2263 | } | |
2264 | ||
2265 | /* If we've dropped any sections, resize the section table. */ | |
2266 | if (dest < src) | |
2267 | target_resize_to_sections (*t, dest - src); | |
2268 | } | |
2269 | } | |
2270 | ||
2271 | ||
2272 | ||
2273 | ||
7a292a7a SS |
2274 | /* Find a single runnable target in the stack and return it. If for |
2275 | some reason there is more than one, return NULL. */ | |
2276 | ||
2277 | struct target_ops * | |
fba45db2 | 2278 | find_run_target (void) |
7a292a7a SS |
2279 | { |
2280 | struct target_ops **t; | |
2281 | struct target_ops *runable = NULL; | |
2282 | int count; | |
c5aa993b | 2283 | |
7a292a7a | 2284 | count = 0; |
c5aa993b | 2285 | |
7a292a7a SS |
2286 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
2287 | { | |
c5aa993b | 2288 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
2289 | { |
2290 | runable = *t; | |
2291 | ++count; | |
2292 | } | |
2293 | } | |
c5aa993b | 2294 | |
7a292a7a SS |
2295 | return (count == 1 ? runable : NULL); |
2296 | } | |
2297 | ||
ed9a39eb JM |
2298 | /* Find a single core_stratum target in the list of targets and return it. |
2299 | If for some reason there is more than one, return NULL. */ | |
2300 | ||
c906108c | 2301 | struct target_ops * |
fba45db2 | 2302 | find_core_target (void) |
c906108c SS |
2303 | { |
2304 | struct target_ops **t; | |
2305 | struct target_ops *runable = NULL; | |
2306 | int count; | |
c5aa993b | 2307 | |
c906108c | 2308 | count = 0; |
c5aa993b | 2309 | |
c906108c SS |
2310 | for (t = target_structs; t < target_structs + target_struct_size; |
2311 | ++t) | |
2312 | { | |
2313 | if ((*t)->to_stratum == core_stratum) | |
2314 | { | |
2315 | runable = *t; | |
2316 | ++count; | |
2317 | } | |
2318 | } | |
c5aa993b JM |
2319 | |
2320 | return (count == 1 ? runable : NULL); | |
c906108c | 2321 | } |
ed9a39eb JM |
2322 | |
2323 | /* | |
2324 | * Find the next target down the stack from the specified target. | |
2325 | */ | |
2326 | ||
2327 | struct target_ops * | |
fba45db2 | 2328 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 2329 | { |
258b763a | 2330 | return t->beneath; |
ed9a39eb JM |
2331 | } |
2332 | ||
c906108c SS |
2333 | \f |
2334 | /* The inferior process has died. Long live the inferior! */ | |
2335 | ||
2336 | void | |
fba45db2 | 2337 | generic_mourn_inferior (void) |
c906108c SS |
2338 | { |
2339 | extern int show_breakpoint_hit_counts; | |
2340 | ||
39f77062 | 2341 | inferior_ptid = null_ptid; |
c906108c SS |
2342 | attach_flag = 0; |
2343 | breakpoint_init_inferior (inf_exited); | |
2344 | registers_changed (); | |
2345 | ||
c906108c SS |
2346 | reopen_exec_file (); |
2347 | reinit_frame_cache (); | |
2348 | ||
2349 | /* It is confusing to the user for ignore counts to stick around | |
2350 | from previous runs of the inferior. So clear them. */ | |
2351 | /* However, it is more confusing for the ignore counts to disappear when | |
2352 | using hit counts. So don't clear them if we're counting hits. */ | |
2353 | if (!show_breakpoint_hit_counts) | |
2354 | breakpoint_clear_ignore_counts (); | |
c5b739b5 | 2355 | |
9a4105ab AC |
2356 | if (deprecated_detach_hook) |
2357 | deprecated_detach_hook (); | |
c906108c SS |
2358 | } |
2359 | \f | |
8807d78b | 2360 | /* Helper function for child_wait and the derivatives of child_wait. |
c906108c SS |
2361 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our |
2362 | translation of that in OURSTATUS. */ | |
2363 | void | |
fba45db2 | 2364 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c | 2365 | { |
c906108c SS |
2366 | if (WIFEXITED (hoststatus)) |
2367 | { | |
2368 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
2369 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
2370 | } | |
2371 | else if (!WIFSTOPPED (hoststatus)) | |
2372 | { | |
2373 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
2374 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
2375 | } | |
2376 | else | |
2377 | { | |
2378 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
2379 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
2380 | } | |
2381 | } | |
2382 | \f | |
c906108c | 2383 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 2384 | int (*target_activity_function) (void); |
c906108c SS |
2385 | int target_activity_fd; |
2386 | \f | |
fd0a2a6f MK |
2387 | /* Convert a normal process ID to a string. Returns the string in a |
2388 | static buffer. */ | |
c906108c SS |
2389 | |
2390 | char * | |
39f77062 | 2391 | normal_pid_to_str (ptid_t ptid) |
c906108c | 2392 | { |
fd0a2a6f | 2393 | static char buf[32]; |
c906108c | 2394 | |
5fff8fc0 | 2395 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
2396 | return buf; |
2397 | } | |
2398 | ||
be4d1333 | 2399 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
2400 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
2401 | { | |
8a3fe4f8 | 2402 | error (_("No target.")); |
be4d1333 MS |
2403 | return 0; |
2404 | } | |
2405 | ||
2406 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
2407 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
2408 | { | |
8a3fe4f8 | 2409 | error (_("No target.")); |
be4d1333 MS |
2410 | return NULL; |
2411 | } | |
2412 | ||
c906108c SS |
2413 | /* Set up the handful of non-empty slots needed by the dummy target |
2414 | vector. */ | |
2415 | ||
2416 | static void | |
fba45db2 | 2417 | init_dummy_target (void) |
c906108c SS |
2418 | { |
2419 | dummy_target.to_shortname = "None"; | |
2420 | dummy_target.to_longname = "None"; | |
2421 | dummy_target.to_doc = ""; | |
2422 | dummy_target.to_attach = find_default_attach; | |
c906108c | 2423 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
2424 | dummy_target.to_can_async_p = find_default_can_async_p; |
2425 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 2426 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
ed9a39eb | 2427 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 2428 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
2429 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
2430 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 2431 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
2432 | dummy_target.to_magic = OPS_MAGIC; |
2433 | } | |
c906108c | 2434 | \f |
c906108c | 2435 | static void |
fba45db2 | 2436 | debug_to_open (char *args, int from_tty) |
c906108c SS |
2437 | { |
2438 | debug_target.to_open (args, from_tty); | |
2439 | ||
96baa820 | 2440 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
2441 | } |
2442 | ||
2443 | static void | |
fba45db2 | 2444 | debug_to_close (int quitting) |
c906108c | 2445 | { |
f1c07ab0 | 2446 | target_close (&debug_target, quitting); |
96baa820 | 2447 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
2448 | } |
2449 | ||
f1c07ab0 AC |
2450 | void |
2451 | target_close (struct target_ops *targ, int quitting) | |
2452 | { | |
2453 | if (targ->to_xclose != NULL) | |
2454 | targ->to_xclose (targ, quitting); | |
2455 | else if (targ->to_close != NULL) | |
2456 | targ->to_close (quitting); | |
2457 | } | |
2458 | ||
c906108c | 2459 | static void |
fba45db2 | 2460 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
2461 | { |
2462 | debug_target.to_attach (args, from_tty); | |
2463 | ||
96baa820 | 2464 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
2465 | } |
2466 | ||
2467 | ||
2468 | static void | |
fba45db2 | 2469 | debug_to_post_attach (int pid) |
c906108c SS |
2470 | { |
2471 | debug_target.to_post_attach (pid); | |
2472 | ||
96baa820 | 2473 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
2474 | } |
2475 | ||
c906108c | 2476 | static void |
fba45db2 | 2477 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
2478 | { |
2479 | debug_target.to_detach (args, from_tty); | |
2480 | ||
96baa820 | 2481 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
2482 | } |
2483 | ||
c906108c | 2484 | static void |
39f77062 | 2485 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 2486 | { |
39f77062 | 2487 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 2488 | |
39f77062 | 2489 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
2490 | step ? "step" : "continue", |
2491 | target_signal_to_name (siggnal)); | |
2492 | } | |
2493 | ||
39f77062 KB |
2494 | static ptid_t |
2495 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 2496 | { |
39f77062 | 2497 | ptid_t retval; |
c906108c | 2498 | |
39f77062 | 2499 | retval = debug_target.to_wait (ptid, status); |
c906108c | 2500 | |
96baa820 | 2501 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
2502 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
2503 | PIDGET (retval)); | |
96baa820 | 2504 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
2505 | switch (status->kind) |
2506 | { | |
2507 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 2508 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
2509 | status->value.integer); |
2510 | break; | |
2511 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 2512 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
2513 | target_signal_to_name (status->value.sig)); |
2514 | break; | |
2515 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 2516 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
2517 | target_signal_to_name (status->value.sig)); |
2518 | break; | |
2519 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 2520 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
2521 | break; |
2522 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 2523 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
2524 | break; |
2525 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 2526 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
2527 | break; |
2528 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 2529 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
2530 | break; |
2531 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 2532 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
2533 | break; |
2534 | default: | |
96baa820 | 2535 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
2536 | break; |
2537 | } | |
2538 | ||
2539 | return retval; | |
2540 | } | |
2541 | ||
bf0c5130 | 2542 | static void |
56be3814 UW |
2543 | debug_print_register (const char * func, |
2544 | struct regcache *regcache, int regno) | |
bf0c5130 | 2545 | { |
f8d29908 | 2546 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
bf0c5130 | 2547 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 2548 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
2549 | && gdbarch_register_name (gdbarch, regno) != NULL |
2550 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
2551 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
2552 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
2553 | else |
2554 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 2555 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 2556 | { |
f8d29908 | 2557 | int i, size = register_size (gdbarch, regno); |
d9d9c31f | 2558 | unsigned char buf[MAX_REGISTER_SIZE]; |
0ff58721 | 2559 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 2560 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 2561 | for (i = 0; i < size; i++) |
bf0c5130 AC |
2562 | { |
2563 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
2564 | } | |
81c4a259 | 2565 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 2566 | { |
81c4a259 | 2567 | ULONGEST val = extract_unsigned_integer (buf, size); |
bf0c5130 | 2568 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", |
623d3eb1 | 2569 | paddr_nz (val), plongest (val)); |
bf0c5130 AC |
2570 | } |
2571 | } | |
2572 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2573 | } | |
2574 | ||
c906108c | 2575 | static void |
56be3814 | 2576 | debug_to_fetch_registers (struct regcache *regcache, int regno) |
c906108c | 2577 | { |
56be3814 UW |
2578 | debug_target.to_fetch_registers (regcache, regno); |
2579 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
2580 | } |
2581 | ||
2582 | static void | |
56be3814 | 2583 | debug_to_store_registers (struct regcache *regcache, int regno) |
c906108c | 2584 | { |
56be3814 UW |
2585 | debug_target.to_store_registers (regcache, regno); |
2586 | debug_print_register ("target_store_registers", regcache, regno); | |
bf0c5130 | 2587 | fprintf_unfiltered (gdb_stdlog, "\n"); |
c906108c SS |
2588 | } |
2589 | ||
2590 | static void | |
316f2060 | 2591 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 2592 | { |
316f2060 | 2593 | debug_target.to_prepare_to_store (regcache); |
c906108c | 2594 | |
96baa820 | 2595 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
2596 | } |
2597 | ||
2598 | static int | |
961cb7b5 | 2599 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
2600 | int write, struct mem_attrib *attrib, |
2601 | struct target_ops *target) | |
c906108c SS |
2602 | { |
2603 | int retval; | |
2604 | ||
c8e73a31 AC |
2605 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
2606 | attrib, target); | |
c906108c | 2607 | |
96baa820 | 2608 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2609 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 2610 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
2611 | len, write ? "write" : "read", retval); |
2612 | ||
c906108c SS |
2613 | if (retval > 0) |
2614 | { | |
2615 | int i; | |
2616 | ||
96baa820 | 2617 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
2618 | for (i = 0; i < retval; i++) |
2619 | { | |
2620 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
333dabeb DJ |
2621 | { |
2622 | if (targetdebug < 2 && i > 0) | |
2623 | { | |
2624 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
2625 | break; | |
2626 | } | |
2627 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2628 | } | |
2bc416ba | 2629 | |
96baa820 | 2630 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
2631 | } |
2632 | } | |
2633 | ||
96baa820 | 2634 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
2635 | |
2636 | return retval; | |
2637 | } | |
2638 | ||
2639 | static void | |
fba45db2 | 2640 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
2641 | { |
2642 | debug_target.to_files_info (target); | |
2643 | ||
96baa820 | 2644 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
2645 | } |
2646 | ||
2647 | static int | |
8181d85f | 2648 | debug_to_insert_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2649 | { |
2650 | int retval; | |
2651 | ||
8181d85f | 2652 | retval = debug_target.to_insert_breakpoint (bp_tgt); |
c906108c | 2653 | |
96baa820 | 2654 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2655 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2656 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2657 | (unsigned long) retval); |
c906108c SS |
2658 | return retval; |
2659 | } | |
2660 | ||
2661 | static int | |
8181d85f | 2662 | debug_to_remove_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2663 | { |
2664 | int retval; | |
2665 | ||
8181d85f | 2666 | retval = debug_target.to_remove_breakpoint (bp_tgt); |
c906108c | 2667 | |
96baa820 | 2668 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2669 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2670 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2671 | (unsigned long) retval); |
c906108c SS |
2672 | return retval; |
2673 | } | |
2674 | ||
ccaa32c7 GS |
2675 | static int |
2676 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2677 | { | |
2678 | int retval; | |
2679 | ||
2680 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2681 | ||
2682 | fprintf_unfiltered (gdb_stdlog, | |
2683 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2684 | (unsigned long) type, | |
2685 | (unsigned long) cnt, | |
2686 | (unsigned long) from_tty, | |
2687 | (unsigned long) retval); | |
2688 | return retval; | |
2689 | } | |
2690 | ||
e0d24f8d WZ |
2691 | static int |
2692 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2693 | { | |
2694 | CORE_ADDR retval; | |
2695 | ||
2696 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
2697 | ||
2698 | fprintf_unfiltered (gdb_stdlog, | |
2699 | "TARGET_REGION_OK_FOR_HW_WATCHPOINT (%ld, %ld) = 0x%lx\n", | |
2700 | (unsigned long) addr, | |
2701 | (unsigned long) len, | |
2702 | (unsigned long) retval); | |
2703 | return retval; | |
2704 | } | |
2705 | ||
ccaa32c7 GS |
2706 | static int |
2707 | debug_to_stopped_by_watchpoint (void) | |
2708 | { | |
2709 | int retval; | |
2710 | ||
2711 | retval = debug_target.to_stopped_by_watchpoint (); | |
2712 | ||
2713 | fprintf_unfiltered (gdb_stdlog, | |
2714 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
2715 | (unsigned long) retval); | |
2716 | return retval; | |
2717 | } | |
2718 | ||
4aa7a7f5 JJ |
2719 | static int |
2720 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 2721 | { |
4aa7a7f5 | 2722 | int retval; |
ccaa32c7 | 2723 | |
4aa7a7f5 | 2724 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
2725 | |
2726 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
2727 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
2728 | (unsigned long)*addr, | |
2729 | (unsigned long)retval); | |
ccaa32c7 GS |
2730 | return retval; |
2731 | } | |
2732 | ||
5009afc5 AS |
2733 | static int |
2734 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
2735 | CORE_ADDR addr, | |
2736 | CORE_ADDR start, int length) | |
2737 | { | |
2738 | int retval; | |
2739 | ||
2740 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
2741 | start, length); | |
2742 | ||
2743 | fprintf_filtered (gdb_stdlog, | |
2744 | "target_watchpoint_addr_within_range (0x%lx, 0x%lx, %d) = %d\n", | |
2745 | (unsigned long) addr, (unsigned long) start, length, | |
2746 | retval); | |
2747 | return retval; | |
2748 | } | |
2749 | ||
ccaa32c7 | 2750 | static int |
8181d85f | 2751 | debug_to_insert_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2752 | { |
2753 | int retval; | |
2754 | ||
8181d85f | 2755 | retval = debug_target.to_insert_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2756 | |
2757 | fprintf_unfiltered (gdb_stdlog, | |
2758 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2759 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2760 | (unsigned long) retval); |
2761 | return retval; | |
2762 | } | |
2763 | ||
2764 | static int | |
8181d85f | 2765 | debug_to_remove_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2766 | { |
2767 | int retval; | |
2768 | ||
8181d85f | 2769 | retval = debug_target.to_remove_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2770 | |
2771 | fprintf_unfiltered (gdb_stdlog, | |
2772 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2773 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2774 | (unsigned long) retval); |
2775 | return retval; | |
2776 | } | |
2777 | ||
2778 | static int | |
2779 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2780 | { | |
2781 | int retval; | |
2782 | ||
2783 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2784 | ||
2785 | fprintf_unfiltered (gdb_stdlog, | |
2786 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2787 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2788 | return retval; | |
2789 | } | |
2790 | ||
2791 | static int | |
2792 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2793 | { | |
2794 | int retval; | |
2795 | ||
ecde4882 | 2796 | retval = debug_target.to_remove_watchpoint (addr, len, type); |
ccaa32c7 GS |
2797 | |
2798 | fprintf_unfiltered (gdb_stdlog, | |
ecde4882 | 2799 | "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n", |
ccaa32c7 GS |
2800 | (unsigned long) addr, len, type, (unsigned long) retval); |
2801 | return retval; | |
2802 | } | |
2803 | ||
c906108c | 2804 | static void |
fba45db2 | 2805 | debug_to_terminal_init (void) |
c906108c SS |
2806 | { |
2807 | debug_target.to_terminal_init (); | |
2808 | ||
96baa820 | 2809 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2810 | } |
2811 | ||
2812 | static void | |
fba45db2 | 2813 | debug_to_terminal_inferior (void) |
c906108c SS |
2814 | { |
2815 | debug_target.to_terminal_inferior (); | |
2816 | ||
96baa820 | 2817 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2818 | } |
2819 | ||
2820 | static void | |
fba45db2 | 2821 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2822 | { |
2823 | debug_target.to_terminal_ours_for_output (); | |
2824 | ||
96baa820 | 2825 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2826 | } |
2827 | ||
2828 | static void | |
fba45db2 | 2829 | debug_to_terminal_ours (void) |
c906108c SS |
2830 | { |
2831 | debug_target.to_terminal_ours (); | |
2832 | ||
96baa820 | 2833 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2834 | } |
2835 | ||
a790ad35 SC |
2836 | static void |
2837 | debug_to_terminal_save_ours (void) | |
2838 | { | |
2839 | debug_target.to_terminal_save_ours (); | |
2840 | ||
2841 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2842 | } | |
2843 | ||
c906108c | 2844 | static void |
fba45db2 | 2845 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2846 | { |
2847 | debug_target.to_terminal_info (arg, from_tty); | |
2848 | ||
96baa820 | 2849 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2850 | from_tty); |
2851 | } | |
2852 | ||
2853 | static void | |
fba45db2 | 2854 | debug_to_kill (void) |
c906108c SS |
2855 | { |
2856 | debug_target.to_kill (); | |
2857 | ||
96baa820 | 2858 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2859 | } |
2860 | ||
2861 | static void | |
fba45db2 | 2862 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2863 | { |
2864 | debug_target.to_load (args, from_tty); | |
2865 | ||
96baa820 | 2866 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2867 | } |
2868 | ||
2869 | static int | |
fba45db2 | 2870 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2871 | { |
2872 | int retval; | |
2873 | ||
2874 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2875 | ||
96baa820 | 2876 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2877 | |
2878 | return retval; | |
2879 | } | |
2880 | ||
2881 | static void | |
c27cda74 AC |
2882 | debug_to_create_inferior (char *exec_file, char *args, char **env, |
2883 | int from_tty) | |
c906108c | 2884 | { |
c27cda74 | 2885 | debug_target.to_create_inferior (exec_file, args, env, from_tty); |
c906108c | 2886 | |
c27cda74 AC |
2887 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx, %d)\n", |
2888 | exec_file, args, from_tty); | |
c906108c SS |
2889 | } |
2890 | ||
2891 | static void | |
39f77062 | 2892 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2893 | { |
39f77062 | 2894 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2895 | |
96baa820 | 2896 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2897 | PIDGET (ptid)); |
c906108c SS |
2898 | } |
2899 | ||
2900 | static void | |
fba45db2 | 2901 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2902 | { |
2903 | debug_target.to_acknowledge_created_inferior (pid); | |
2904 | ||
96baa820 | 2905 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2906 | pid); |
2907 | } | |
2908 | ||
fa113d1a | 2909 | static void |
fba45db2 | 2910 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2911 | { |
fa113d1a | 2912 | debug_target.to_insert_fork_catchpoint (pid); |
c906108c | 2913 | |
fa113d1a AC |
2914 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n", |
2915 | pid); | |
c906108c SS |
2916 | } |
2917 | ||
2918 | static int | |
fba45db2 | 2919 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2920 | { |
c5aa993b | 2921 | int retval; |
c906108c SS |
2922 | |
2923 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2924 | ||
96baa820 | 2925 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2926 | pid, retval); |
c906108c SS |
2927 | |
2928 | return retval; | |
2929 | } | |
2930 | ||
fa113d1a | 2931 | static void |
fba45db2 | 2932 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2933 | { |
fa113d1a | 2934 | debug_target.to_insert_vfork_catchpoint (pid); |
c906108c | 2935 | |
fa113d1a AC |
2936 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n", |
2937 | pid); | |
c906108c SS |
2938 | } |
2939 | ||
2940 | static int | |
fba45db2 | 2941 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2942 | { |
c5aa993b | 2943 | int retval; |
c906108c SS |
2944 | |
2945 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2946 | ||
96baa820 | 2947 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2948 | pid, retval); |
c906108c SS |
2949 | |
2950 | return retval; | |
2951 | } | |
2952 | ||
fa113d1a | 2953 | static void |
fba45db2 | 2954 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2955 | { |
fa113d1a | 2956 | debug_target.to_insert_exec_catchpoint (pid); |
c906108c | 2957 | |
fa113d1a AC |
2958 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n", |
2959 | pid); | |
c906108c SS |
2960 | } |
2961 | ||
2962 | static int | |
fba45db2 | 2963 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2964 | { |
c5aa993b | 2965 | int retval; |
c906108c SS |
2966 | |
2967 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2968 | ||
96baa820 | 2969 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2970 | pid, retval); |
c906108c SS |
2971 | |
2972 | return retval; | |
2973 | } | |
2974 | ||
c906108c | 2975 | static int |
fba45db2 | 2976 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2977 | { |
c5aa993b | 2978 | int has_exited; |
c906108c SS |
2979 | |
2980 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2981 | ||
96baa820 | 2982 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2983 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2984 | |
2985 | return has_exited; | |
2986 | } | |
2987 | ||
2988 | static void | |
fba45db2 | 2989 | debug_to_mourn_inferior (void) |
c906108c SS |
2990 | { |
2991 | debug_target.to_mourn_inferior (); | |
2992 | ||
96baa820 | 2993 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2994 | } |
2995 | ||
2996 | static int | |
fba45db2 | 2997 | debug_to_can_run (void) |
c906108c SS |
2998 | { |
2999 | int retval; | |
3000 | ||
3001 | retval = debug_target.to_can_run (); | |
3002 | ||
96baa820 | 3003 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
3004 | |
3005 | return retval; | |
3006 | } | |
3007 | ||
3008 | static void | |
39f77062 | 3009 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 3010 | { |
39f77062 | 3011 | debug_target.to_notice_signals (ptid); |
c906108c | 3012 | |
39f77062 KB |
3013 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
3014 | PIDGET (ptid)); | |
c906108c SS |
3015 | } |
3016 | ||
3017 | static int | |
39f77062 | 3018 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
3019 | { |
3020 | int retval; | |
3021 | ||
39f77062 | 3022 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 3023 | |
96baa820 | 3024 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 3025 | PIDGET (ptid), retval); |
c906108c SS |
3026 | |
3027 | return retval; | |
3028 | } | |
3029 | ||
0d06e24b | 3030 | static void |
fba45db2 | 3031 | debug_to_find_new_threads (void) |
0d06e24b JM |
3032 | { |
3033 | debug_target.to_find_new_threads (); | |
3034 | ||
3035 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
3036 | } | |
3037 | ||
c906108c | 3038 | static void |
94cc34af | 3039 | debug_to_stop (ptid_t ptid) |
c906108c | 3040 | { |
94cc34af | 3041 | debug_target.to_stop (ptid); |
c906108c | 3042 | |
94cc34af PA |
3043 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
3044 | target_pid_to_str (ptid)); | |
c906108c SS |
3045 | } |
3046 | ||
96baa820 JM |
3047 | static void |
3048 | debug_to_rcmd (char *command, | |
d9fcf2fb | 3049 | struct ui_file *outbuf) |
96baa820 JM |
3050 | { |
3051 | debug_target.to_rcmd (command, outbuf); | |
3052 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
3053 | } | |
3054 | ||
c906108c | 3055 | static char * |
fba45db2 | 3056 | debug_to_pid_to_exec_file (int pid) |
c906108c | 3057 | { |
c5aa993b | 3058 | char *exec_file; |
c906108c SS |
3059 | |
3060 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
3061 | ||
96baa820 | 3062 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 3063 | pid, exec_file); |
c906108c SS |
3064 | |
3065 | return exec_file; | |
3066 | } | |
3067 | ||
c906108c | 3068 | static void |
fba45db2 | 3069 | setup_target_debug (void) |
c906108c SS |
3070 | { |
3071 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
3072 | ||
3073 | current_target.to_open = debug_to_open; | |
3074 | current_target.to_close = debug_to_close; | |
3075 | current_target.to_attach = debug_to_attach; | |
3076 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 3077 | current_target.to_detach = debug_to_detach; |
c906108c SS |
3078 | current_target.to_resume = debug_to_resume; |
3079 | current_target.to_wait = debug_to_wait; | |
c906108c SS |
3080 | current_target.to_fetch_registers = debug_to_fetch_registers; |
3081 | current_target.to_store_registers = debug_to_store_registers; | |
3082 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
c8e73a31 | 3083 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
3084 | current_target.to_files_info = debug_to_files_info; |
3085 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
3086 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
3087 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
3088 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
3089 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
3090 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
3091 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
3092 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
3093 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
5009afc5 | 3094 | current_target.to_watchpoint_addr_within_range = debug_to_watchpoint_addr_within_range; |
e0d24f8d | 3095 | current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint; |
c906108c SS |
3096 | current_target.to_terminal_init = debug_to_terminal_init; |
3097 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3098 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
3099 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 3100 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
3101 | current_target.to_terminal_info = debug_to_terminal_info; |
3102 | current_target.to_kill = debug_to_kill; | |
3103 | current_target.to_load = debug_to_load; | |
3104 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
3105 | current_target.to_create_inferior = debug_to_create_inferior; | |
3106 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
3107 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
3108 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
3109 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
3110 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
3111 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
3112 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
3113 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c SS |
3114 | current_target.to_has_exited = debug_to_has_exited; |
3115 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
3116 | current_target.to_can_run = debug_to_can_run; | |
3117 | current_target.to_notice_signals = debug_to_notice_signals; | |
3118 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 3119 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 3120 | current_target.to_stop = debug_to_stop; |
96baa820 | 3121 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 3122 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c906108c | 3123 | } |
c906108c | 3124 | \f |
c5aa993b JM |
3125 | |
3126 | static char targ_desc[] = | |
3127 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
3128 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
3129 | core-file, and process, if any), as well as the symbol file name."; | |
3130 | ||
96baa820 JM |
3131 | static void |
3132 | do_monitor_command (char *cmd, | |
3133 | int from_tty) | |
3134 | { | |
2b5fe715 AC |
3135 | if ((current_target.to_rcmd |
3136 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 3137 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
3138 | && (debug_target.to_rcmd |
3139 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 3140 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
3141 | target_rcmd (cmd, gdb_stdtarg); |
3142 | } | |
3143 | ||
87680a14 JB |
3144 | /* Print the name of each layers of our target stack. */ |
3145 | ||
3146 | static void | |
3147 | maintenance_print_target_stack (char *cmd, int from_tty) | |
3148 | { | |
3149 | struct target_ops *t; | |
3150 | ||
3151 | printf_filtered (_("The current target stack is:\n")); | |
3152 | ||
3153 | for (t = target_stack; t != NULL; t = t->beneath) | |
3154 | { | |
3155 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
3156 | } | |
3157 | } | |
3158 | ||
c6ebd6cf VP |
3159 | /* Controls if async mode is permitted. */ |
3160 | int target_async_permitted = 0; | |
3161 | ||
3162 | /* The set command writes to this variable. If the inferior is | |
3163 | executing, linux_nat_async_permitted is *not* updated. */ | |
3164 | static int target_async_permitted_1 = 0; | |
3165 | ||
3166 | static void | |
3167 | set_maintenance_target_async_permitted (char *args, int from_tty, | |
3168 | struct cmd_list_element *c) | |
3169 | { | |
3170 | if (target_has_execution) | |
3171 | { | |
3172 | target_async_permitted_1 = target_async_permitted; | |
3173 | error (_("Cannot change this setting while the inferior is running.")); | |
3174 | } | |
3175 | ||
3176 | target_async_permitted = target_async_permitted_1; | |
3177 | } | |
3178 | ||
3179 | static void | |
3180 | show_maintenance_target_async_permitted (struct ui_file *file, int from_tty, | |
3181 | struct cmd_list_element *c, | |
3182 | const char *value) | |
3183 | { | |
3184 | fprintf_filtered (file, _("\ | |
3185 | Controlling the inferior in asynchronous mode is %s.\n"), value); | |
3186 | } | |
3187 | ||
c906108c | 3188 | void |
fba45db2 | 3189 | initialize_targets (void) |
c906108c SS |
3190 | { |
3191 | init_dummy_target (); | |
3192 | push_target (&dummy_target); | |
3193 | ||
3194 | add_info ("target", target_info, targ_desc); | |
3195 | add_info ("files", target_info, targ_desc); | |
3196 | ||
85c07804 AC |
3197 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
3198 | Set target debugging."), _("\ | |
3199 | Show target debugging."), _("\ | |
333dabeb DJ |
3200 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
3201 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
3202 | command."), |
3203 | NULL, | |
920d2a44 | 3204 | show_targetdebug, |
85c07804 | 3205 | &setdebuglist, &showdebuglist); |
3a11626d | 3206 | |
2bc416ba | 3207 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
3208 | &trust_readonly, _("\ |
3209 | Set mode for reading from readonly sections."), _("\ | |
3210 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
3211 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
3212 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 3213 | result in significant performance improvement for remote targets."), |
2c5b56ce | 3214 | NULL, |
920d2a44 | 3215 | show_trust_readonly, |
e707bbc2 | 3216 | &setlist, &showlist); |
96baa820 JM |
3217 | |
3218 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 3219 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 3220 | |
87680a14 JB |
3221 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
3222 | _("Print the name of each layer of the internal target stack."), | |
3223 | &maintenanceprintlist); | |
3224 | ||
c6ebd6cf VP |
3225 | add_setshow_boolean_cmd ("target-async", no_class, |
3226 | &target_async_permitted_1, _("\ | |
3227 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
3228 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
3229 | Tells gdb whether to control the inferior in asynchronous mode."), | |
3230 | set_maintenance_target_async_permitted, | |
3231 | show_maintenance_target_async_permitted, | |
3232 | &setlist, | |
3233 | &showlist); | |
3234 | ||
8add0441 | 3235 | target_dcache = dcache_init (); |
c906108c | 3236 | } |