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