Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 AC |
2 | |
3 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, | |
4 | 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. | |
5 | ||
c906108c SS |
6 | Contributed by Cygnus Support. |
7 | ||
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b JM |
20 | You should have received a copy of the GNU General Public License |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
24 | |
25 | #include "defs.h" | |
26 | #include <errno.h> | |
c906108c SS |
27 | #include "gdb_string.h" |
28 | #include "target.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "symtab.h" | |
31 | #include "inferior.h" | |
32 | #include "bfd.h" | |
33 | #include "symfile.h" | |
34 | #include "objfiles.h" | |
03f2053f | 35 | #include "gdb_wait.h" |
4930751a | 36 | #include "dcache.h" |
c906108c | 37 | #include <signal.h> |
4e052eda | 38 | #include "regcache.h" |
0088c768 | 39 | #include "gdb_assert.h" |
b6591e8b | 40 | #include "gdbcore.h" |
c906108c | 41 | |
a14ed312 | 42 | static void target_info (char *, int); |
c906108c | 43 | |
a14ed312 | 44 | static void maybe_kill_then_create_inferior (char *, char *, char **); |
c906108c | 45 | |
a14ed312 | 46 | static void maybe_kill_then_attach (char *, int); |
c906108c | 47 | |
a14ed312 | 48 | static void kill_or_be_killed (int); |
c906108c | 49 | |
a14ed312 | 50 | static void default_terminal_info (char *, int); |
c906108c | 51 | |
ccaa32c7 GS |
52 | static int default_region_size_ok_for_hw_watchpoint (int); |
53 | ||
a14ed312 | 54 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 55 | |
a14ed312 | 56 | static void tcomplain (void); |
c906108c | 57 | |
a14ed312 | 58 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 59 | |
a14ed312 | 60 | static int return_zero (void); |
c906108c | 61 | |
a14ed312 | 62 | static int return_one (void); |
c906108c | 63 | |
ccaa32c7 GS |
64 | static int return_minus_one (void); |
65 | ||
a14ed312 | 66 | void target_ignore (void); |
c906108c | 67 | |
a14ed312 | 68 | static void target_command (char *, int); |
c906108c | 69 | |
a14ed312 | 70 | static struct target_ops *find_default_run_target (char *); |
c906108c | 71 | |
a14ed312 | 72 | static void nosupport_runtime (void); |
392a587b | 73 | |
39f77062 | 74 | static void normal_target_post_startup_inferior (ptid_t ptid); |
392a587b | 75 | |
0088c768 AC |
76 | static LONGEST default_read_partial (struct target_ops *ops, |
77 | enum target_object object, | |
78 | const char *annex, void *buf, | |
79 | ULONGEST offset, LONGEST len); | |
80 | static LONGEST default_write_partial (struct target_ops *ops, | |
81 | enum target_object object, | |
82 | const char *annex, const void *buf, | |
83 | ULONGEST offset, LONGEST len); | |
84 | ||
917317f4 JM |
85 | /* Transfer LEN bytes between target address MEMADDR and GDB address |
86 | MYADDR. Returns 0 for success, errno code for failure (which | |
87 | includes partial transfers -- if you want a more useful response to | |
88 | partial transfers, try either target_read_memory_partial or | |
89 | target_write_memory_partial). */ | |
c906108c | 90 | |
570b8f7c AC |
91 | static int target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, |
92 | int write); | |
c906108c | 93 | |
a14ed312 | 94 | static void init_dummy_target (void); |
c906108c | 95 | |
a14ed312 | 96 | static void debug_to_open (char *, int); |
c906108c | 97 | |
a14ed312 | 98 | static void debug_to_close (int); |
c906108c | 99 | |
a14ed312 | 100 | static void debug_to_attach (char *, int); |
c906108c | 101 | |
a14ed312 | 102 | static void debug_to_detach (char *, int); |
c906108c | 103 | |
6ad8ae5c DJ |
104 | static void debug_to_disconnect (char *, int); |
105 | ||
39f77062 | 106 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 107 | |
39f77062 | 108 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 109 | |
a14ed312 | 110 | static void debug_to_fetch_registers (int); |
c906108c | 111 | |
a14ed312 | 112 | static void debug_to_store_registers (int); |
c906108c | 113 | |
a14ed312 | 114 | static void debug_to_prepare_to_store (void); |
c906108c | 115 | |
5ae5f592 AC |
116 | static int debug_to_xfer_memory (CORE_ADDR, char *, int, int, |
117 | struct mem_attrib *, struct target_ops *); | |
c906108c | 118 | |
a14ed312 | 119 | static void debug_to_files_info (struct target_ops *); |
c906108c | 120 | |
a14ed312 | 121 | static int debug_to_insert_breakpoint (CORE_ADDR, char *); |
c906108c | 122 | |
a14ed312 | 123 | static int debug_to_remove_breakpoint (CORE_ADDR, char *); |
c906108c | 124 | |
ccaa32c7 GS |
125 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
126 | ||
127 | static int debug_to_insert_hw_breakpoint (CORE_ADDR, char *); | |
128 | ||
129 | static int debug_to_remove_hw_breakpoint (CORE_ADDR, char *); | |
130 | ||
131 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
132 | ||
133 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
134 | ||
135 | static int debug_to_stopped_by_watchpoint (void); | |
136 | ||
137 | static CORE_ADDR debug_to_stopped_data_address (void); | |
138 | ||
139 | static int debug_to_region_size_ok_for_hw_watchpoint (int); | |
140 | ||
a14ed312 | 141 | static void debug_to_terminal_init (void); |
c906108c | 142 | |
a14ed312 | 143 | static void debug_to_terminal_inferior (void); |
c906108c | 144 | |
a14ed312 | 145 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 146 | |
a790ad35 SC |
147 | static void debug_to_terminal_save_ours (void); |
148 | ||
a14ed312 | 149 | static void debug_to_terminal_ours (void); |
c906108c | 150 | |
a14ed312 | 151 | static void debug_to_terminal_info (char *, int); |
c906108c | 152 | |
a14ed312 | 153 | static void debug_to_kill (void); |
c906108c | 154 | |
a14ed312 | 155 | static void debug_to_load (char *, int); |
c906108c | 156 | |
a14ed312 | 157 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 158 | |
a14ed312 | 159 | static void debug_to_create_inferior (char *, char *, char **); |
c906108c | 160 | |
a14ed312 | 161 | static void debug_to_mourn_inferior (void); |
c906108c | 162 | |
a14ed312 | 163 | static int debug_to_can_run (void); |
c906108c | 164 | |
39f77062 | 165 | static void debug_to_notice_signals (ptid_t); |
c906108c | 166 | |
39f77062 | 167 | static int debug_to_thread_alive (ptid_t); |
c906108c | 168 | |
a14ed312 | 169 | static void debug_to_stop (void); |
c906108c | 170 | |
c906108c SS |
171 | /* Pointer to array of target architecture structures; the size of the |
172 | array; the current index into the array; the allocated size of the | |
173 | array. */ | |
174 | struct target_ops **target_structs; | |
175 | unsigned target_struct_size; | |
176 | unsigned target_struct_index; | |
177 | unsigned target_struct_allocsize; | |
178 | #define DEFAULT_ALLOCSIZE 10 | |
179 | ||
180 | /* The initial current target, so that there is always a semi-valid | |
181 | current target. */ | |
182 | ||
183 | static struct target_ops dummy_target; | |
184 | ||
185 | /* Top of target stack. */ | |
186 | ||
258b763a | 187 | static struct target_ops *target_stack; |
c906108c SS |
188 | |
189 | /* The target structure we are currently using to talk to a process | |
190 | or file or whatever "inferior" we have. */ | |
191 | ||
192 | struct target_ops current_target; | |
193 | ||
194 | /* Command list for target. */ | |
195 | ||
196 | static struct cmd_list_element *targetlist = NULL; | |
197 | ||
198 | /* Nonzero if we are debugging an attached outside process | |
199 | rather than an inferior. */ | |
200 | ||
201 | int attach_flag; | |
202 | ||
c906108c SS |
203 | /* Non-zero if we want to see trace of target level stuff. */ |
204 | ||
205 | static int targetdebug = 0; | |
206 | ||
a14ed312 | 207 | static void setup_target_debug (void); |
c906108c | 208 | |
4930751a C |
209 | DCACHE *target_dcache; |
210 | ||
c906108c SS |
211 | /* The user just typed 'target' without the name of a target. */ |
212 | ||
c906108c | 213 | static void |
fba45db2 | 214 | target_command (char *arg, int from_tty) |
c906108c SS |
215 | { |
216 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
217 | gdb_stdout); | |
218 | } | |
219 | ||
220 | /* Add a possible target architecture to the list. */ | |
221 | ||
222 | void | |
fba45db2 | 223 | add_target (struct target_ops *t) |
c906108c | 224 | { |
0088c768 AC |
225 | /* Provide default values for all "must have" methods. */ |
226 | t->to_read_partial = default_read_partial; | |
227 | t->to_write_partial = default_write_partial; | |
228 | ||
c906108c SS |
229 | if (!target_structs) |
230 | { | |
231 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
232 | target_structs = (struct target_ops **) xmalloc | |
233 | (target_struct_allocsize * sizeof (*target_structs)); | |
234 | } | |
235 | if (target_struct_size >= target_struct_allocsize) | |
236 | { | |
237 | target_struct_allocsize *= 2; | |
238 | target_structs = (struct target_ops **) | |
c5aa993b JM |
239 | xrealloc ((char *) target_structs, |
240 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
241 | } |
242 | target_structs[target_struct_size++] = t; | |
c906108c SS |
243 | |
244 | if (targetlist == NULL) | |
245 | add_prefix_cmd ("target", class_run, target_command, | |
246 | "Connect to a target machine or process.\n\ | |
247 | The first argument is the type or protocol of the target machine.\n\ | |
248 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
249 | information on the arguments for a particular protocol, type\n\ | |
250 | `help target ' followed by the protocol name.", | |
251 | &targetlist, "target ", 0, &cmdlist); | |
252 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
253 | } | |
254 | ||
255 | /* Stub functions */ | |
256 | ||
257 | void | |
fba45db2 | 258 | target_ignore (void) |
c906108c SS |
259 | { |
260 | } | |
261 | ||
11cf8741 JM |
262 | void |
263 | target_load (char *arg, int from_tty) | |
264 | { | |
4930751a | 265 | dcache_invalidate (target_dcache); |
11cf8741 JM |
266 | (*current_target.to_load) (arg, from_tty); |
267 | } | |
268 | ||
c906108c | 269 | static int |
fba45db2 KB |
270 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
271 | struct target_ops *t) | |
c906108c | 272 | { |
c5aa993b JM |
273 | errno = EIO; /* Can't read/write this location */ |
274 | return 0; /* No bytes handled */ | |
c906108c SS |
275 | } |
276 | ||
277 | static void | |
fba45db2 | 278 | tcomplain (void) |
c906108c SS |
279 | { |
280 | error ("You can't do that when your target is `%s'", | |
281 | current_target.to_shortname); | |
282 | } | |
283 | ||
284 | void | |
fba45db2 | 285 | noprocess (void) |
c906108c SS |
286 | { |
287 | error ("You can't do that without a process to debug."); | |
288 | } | |
289 | ||
c906108c | 290 | static int |
fba45db2 | 291 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 292 | { |
c5aa993b | 293 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
294 | } |
295 | ||
392a587b | 296 | static void |
fba45db2 | 297 | nosupport_runtime (void) |
c906108c | 298 | { |
39f77062 | 299 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
300 | noprocess (); |
301 | else | |
302 | error ("No run-time support for this"); | |
303 | } | |
304 | ||
305 | ||
c906108c | 306 | static void |
fba45db2 | 307 | default_terminal_info (char *args, int from_tty) |
c906108c | 308 | { |
c5aa993b | 309 | printf_unfiltered ("No saved terminal information.\n"); |
c906108c SS |
310 | } |
311 | ||
312 | /* This is the default target_create_inferior and target_attach function. | |
313 | If the current target is executing, it asks whether to kill it off. | |
314 | If this function returns without calling error(), it has killed off | |
315 | the target, and the operation should be attempted. */ | |
316 | ||
317 | static void | |
fba45db2 | 318 | kill_or_be_killed (int from_tty) |
c906108c SS |
319 | { |
320 | if (target_has_execution) | |
321 | { | |
322 | printf_unfiltered ("You are already running a program:\n"); | |
323 | target_files_info (); | |
c5aa993b JM |
324 | if (query ("Kill it? ")) |
325 | { | |
326 | target_kill (); | |
327 | if (target_has_execution) | |
328 | error ("Killing the program did not help."); | |
329 | return; | |
330 | } | |
331 | else | |
332 | { | |
333 | error ("Program not killed."); | |
334 | } | |
c906108c | 335 | } |
c5aa993b | 336 | tcomplain (); |
c906108c SS |
337 | } |
338 | ||
339 | static void | |
fba45db2 | 340 | maybe_kill_then_attach (char *args, int from_tty) |
c906108c SS |
341 | { |
342 | kill_or_be_killed (from_tty); | |
343 | target_attach (args, from_tty); | |
344 | } | |
345 | ||
346 | static void | |
fba45db2 | 347 | maybe_kill_then_create_inferior (char *exec, char *args, char **env) |
c906108c SS |
348 | { |
349 | kill_or_be_killed (0); | |
350 | target_create_inferior (exec, args, env); | |
351 | } | |
352 | ||
7998dfc3 AC |
353 | /* Go through the target stack from top to bottom, copying over zero |
354 | entries in current_target, then filling in still empty entries. In | |
355 | effect, we are doing class inheritance through the pushed target | |
356 | vectors. | |
357 | ||
358 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
359 | is currently implemented, is that it discards any knowledge of | |
360 | which target an inherited method originally belonged to. | |
361 | Consequently, new new target methods should instead explicitly and | |
362 | locally search the target stack for the target that can handle the | |
363 | request. */ | |
c906108c SS |
364 | |
365 | static void | |
7998dfc3 | 366 | update_current_target (void) |
c906108c | 367 | { |
7998dfc3 AC |
368 | struct target_ops *t; |
369 | ||
370 | /* First, reset curren'ts contents. */ | |
371 | memset (¤t_target, 0, sizeof (current_target)); | |
372 | ||
373 | #define INHERIT(FIELD, TARGET) \ | |
374 | if (!current_target.FIELD) \ | |
375 | current_target.FIELD = (TARGET)->FIELD | |
376 | ||
377 | for (t = target_stack; t; t = t->beneath) | |
378 | { | |
379 | INHERIT (to_shortname, t); | |
380 | INHERIT (to_longname, t); | |
381 | INHERIT (to_doc, t); | |
382 | INHERIT (to_open, t); | |
383 | INHERIT (to_close, t); | |
384 | INHERIT (to_attach, t); | |
385 | INHERIT (to_post_attach, t); | |
386 | INHERIT (to_detach, t); | |
387 | INHERIT (to_disconnect, t); | |
388 | INHERIT (to_resume, t); | |
389 | INHERIT (to_wait, t); | |
390 | INHERIT (to_post_wait, t); | |
391 | INHERIT (to_fetch_registers, t); | |
392 | INHERIT (to_store_registers, t); | |
393 | INHERIT (to_prepare_to_store, t); | |
394 | INHERIT (to_xfer_memory, t); | |
395 | INHERIT (to_files_info, t); | |
396 | INHERIT (to_insert_breakpoint, t); | |
397 | INHERIT (to_remove_breakpoint, t); | |
398 | INHERIT (to_can_use_hw_breakpoint, t); | |
399 | INHERIT (to_insert_hw_breakpoint, t); | |
400 | INHERIT (to_remove_hw_breakpoint, t); | |
401 | INHERIT (to_insert_watchpoint, t); | |
402 | INHERIT (to_remove_watchpoint, t); | |
403 | INHERIT (to_stopped_data_address, t); | |
404 | INHERIT (to_stopped_by_watchpoint, t); | |
405 | INHERIT (to_have_continuable_watchpoint, t); | |
406 | INHERIT (to_region_size_ok_for_hw_watchpoint, t); | |
407 | INHERIT (to_terminal_init, t); | |
408 | INHERIT (to_terminal_inferior, t); | |
409 | INHERIT (to_terminal_ours_for_output, t); | |
410 | INHERIT (to_terminal_ours, t); | |
411 | INHERIT (to_terminal_save_ours, t); | |
412 | INHERIT (to_terminal_info, t); | |
413 | INHERIT (to_kill, t); | |
414 | INHERIT (to_load, t); | |
415 | INHERIT (to_lookup_symbol, t); | |
416 | INHERIT (to_create_inferior, t); | |
417 | INHERIT (to_post_startup_inferior, t); | |
418 | INHERIT (to_acknowledge_created_inferior, t); | |
419 | INHERIT (to_insert_fork_catchpoint, t); | |
420 | INHERIT (to_remove_fork_catchpoint, t); | |
421 | INHERIT (to_insert_vfork_catchpoint, t); | |
422 | INHERIT (to_remove_vfork_catchpoint, t); | |
423 | INHERIT (to_follow_fork, t); | |
424 | INHERIT (to_insert_exec_catchpoint, t); | |
425 | INHERIT (to_remove_exec_catchpoint, t); | |
426 | INHERIT (to_reported_exec_events_per_exec_call, t); | |
427 | INHERIT (to_has_exited, t); | |
428 | INHERIT (to_mourn_inferior, t); | |
429 | INHERIT (to_can_run, t); | |
430 | INHERIT (to_notice_signals, t); | |
431 | INHERIT (to_thread_alive, t); | |
432 | INHERIT (to_find_new_threads, t); | |
433 | INHERIT (to_pid_to_str, t); | |
434 | INHERIT (to_extra_thread_info, t); | |
435 | INHERIT (to_stop, t); | |
1e3ff5ad AC |
436 | /* Do not inherit to_read_partial. */ |
437 | /* Do not inherit to_write_partial. */ | |
7998dfc3 AC |
438 | INHERIT (to_rcmd, t); |
439 | INHERIT (to_enable_exception_callback, t); | |
440 | INHERIT (to_get_current_exception_event, t); | |
441 | INHERIT (to_pid_to_exec_file, t); | |
442 | INHERIT (to_stratum, t); | |
443 | INHERIT (to_has_all_memory, t); | |
444 | INHERIT (to_has_memory, t); | |
445 | INHERIT (to_has_stack, t); | |
446 | INHERIT (to_has_registers, t); | |
447 | INHERIT (to_has_execution, t); | |
448 | INHERIT (to_has_thread_control, t); | |
449 | INHERIT (to_sections, t); | |
450 | INHERIT (to_sections_end, t); | |
451 | INHERIT (to_can_async_p, t); | |
452 | INHERIT (to_is_async_p, t); | |
453 | INHERIT (to_async, t); | |
454 | INHERIT (to_async_mask_value, t); | |
455 | INHERIT (to_find_memory_regions, t); | |
456 | INHERIT (to_make_corefile_notes, t); | |
457 | INHERIT (to_get_thread_local_address, t); | |
458 | INHERIT (to_magic, t); | |
459 | } | |
460 | #undef INHERIT | |
461 | ||
462 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
463 | it. Some entries are defaulted to a method that print an error, |
464 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
465 | |
466 | #define de_fault(field, value) \ | |
7998dfc3 AC |
467 | if (!current_target.field) \ |
468 | current_target.field = value | |
0d06e24b JM |
469 | |
470 | de_fault (to_open, | |
471 | (void (*) (char *, int)) | |
472 | tcomplain); | |
473 | de_fault (to_close, | |
474 | (void (*) (int)) | |
475 | target_ignore); | |
476 | de_fault (to_attach, | |
477 | maybe_kill_then_attach); | |
478 | de_fault (to_post_attach, | |
479 | (void (*) (int)) | |
480 | target_ignore); | |
0d06e24b JM |
481 | de_fault (to_detach, |
482 | (void (*) (char *, int)) | |
483 | target_ignore); | |
6ad8ae5c DJ |
484 | de_fault (to_disconnect, |
485 | (void (*) (char *, int)) | |
486 | tcomplain); | |
0d06e24b | 487 | de_fault (to_resume, |
39f77062 | 488 | (void (*) (ptid_t, int, enum target_signal)) |
0d06e24b JM |
489 | noprocess); |
490 | de_fault (to_wait, | |
39f77062 | 491 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) |
0d06e24b JM |
492 | noprocess); |
493 | de_fault (to_post_wait, | |
39f77062 | 494 | (void (*) (ptid_t, int)) |
0d06e24b JM |
495 | target_ignore); |
496 | de_fault (to_fetch_registers, | |
497 | (void (*) (int)) | |
498 | target_ignore); | |
499 | de_fault (to_store_registers, | |
500 | (void (*) (int)) | |
501 | noprocess); | |
502 | de_fault (to_prepare_to_store, | |
503 | (void (*) (void)) | |
504 | noprocess); | |
505 | de_fault (to_xfer_memory, | |
29e57380 | 506 | (int (*) (CORE_ADDR, char *, int, int, struct mem_attrib *, struct target_ops *)) |
0d06e24b JM |
507 | nomemory); |
508 | de_fault (to_files_info, | |
509 | (void (*) (struct target_ops *)) | |
510 | target_ignore); | |
511 | de_fault (to_insert_breakpoint, | |
512 | memory_insert_breakpoint); | |
513 | de_fault (to_remove_breakpoint, | |
514 | memory_remove_breakpoint); | |
ccaa32c7 GS |
515 | de_fault (to_can_use_hw_breakpoint, |
516 | (int (*) (int, int, int)) | |
517 | return_zero); | |
518 | de_fault (to_insert_hw_breakpoint, | |
519 | (int (*) (CORE_ADDR, char *)) | |
520 | return_minus_one); | |
521 | de_fault (to_remove_hw_breakpoint, | |
522 | (int (*) (CORE_ADDR, char *)) | |
523 | return_minus_one); | |
524 | de_fault (to_insert_watchpoint, | |
525 | (int (*) (CORE_ADDR, int, int)) | |
526 | return_minus_one); | |
527 | de_fault (to_remove_watchpoint, | |
528 | (int (*) (CORE_ADDR, int, int)) | |
529 | return_minus_one); | |
530 | de_fault (to_stopped_by_watchpoint, | |
531 | (int (*) (void)) | |
532 | return_zero); | |
533 | de_fault (to_stopped_data_address, | |
534 | (CORE_ADDR (*) (void)) | |
535 | return_zero); | |
536 | de_fault (to_region_size_ok_for_hw_watchpoint, | |
537 | default_region_size_ok_for_hw_watchpoint); | |
0d06e24b JM |
538 | de_fault (to_terminal_init, |
539 | (void (*) (void)) | |
540 | target_ignore); | |
541 | de_fault (to_terminal_inferior, | |
542 | (void (*) (void)) | |
543 | target_ignore); | |
544 | de_fault (to_terminal_ours_for_output, | |
545 | (void (*) (void)) | |
546 | target_ignore); | |
547 | de_fault (to_terminal_ours, | |
548 | (void (*) (void)) | |
549 | target_ignore); | |
a790ad35 SC |
550 | de_fault (to_terminal_save_ours, |
551 | (void (*) (void)) | |
552 | target_ignore); | |
0d06e24b JM |
553 | de_fault (to_terminal_info, |
554 | default_terminal_info); | |
555 | de_fault (to_kill, | |
556 | (void (*) (void)) | |
557 | noprocess); | |
558 | de_fault (to_load, | |
559 | (void (*) (char *, int)) | |
560 | tcomplain); | |
561 | de_fault (to_lookup_symbol, | |
562 | (int (*) (char *, CORE_ADDR *)) | |
563 | nosymbol); | |
564 | de_fault (to_create_inferior, | |
565 | maybe_kill_then_create_inferior); | |
566 | de_fault (to_post_startup_inferior, | |
39f77062 | 567 | (void (*) (ptid_t)) |
0d06e24b JM |
568 | target_ignore); |
569 | de_fault (to_acknowledge_created_inferior, | |
570 | (void (*) (int)) | |
571 | target_ignore); | |
0d06e24b JM |
572 | de_fault (to_insert_fork_catchpoint, |
573 | (int (*) (int)) | |
574 | tcomplain); | |
575 | de_fault (to_remove_fork_catchpoint, | |
576 | (int (*) (int)) | |
577 | tcomplain); | |
578 | de_fault (to_insert_vfork_catchpoint, | |
579 | (int (*) (int)) | |
580 | tcomplain); | |
581 | de_fault (to_remove_vfork_catchpoint, | |
582 | (int (*) (int)) | |
583 | tcomplain); | |
4c9ba7e0 | 584 | de_fault (to_follow_fork, |
6604731b | 585 | (int (*) (int)) |
0d06e24b JM |
586 | target_ignore); |
587 | de_fault (to_insert_exec_catchpoint, | |
588 | (int (*) (int)) | |
589 | tcomplain); | |
590 | de_fault (to_remove_exec_catchpoint, | |
591 | (int (*) (int)) | |
592 | tcomplain); | |
0d06e24b JM |
593 | de_fault (to_reported_exec_events_per_exec_call, |
594 | (int (*) (void)) | |
595 | return_one); | |
0d06e24b JM |
596 | de_fault (to_has_exited, |
597 | (int (*) (int, int, int *)) | |
598 | return_zero); | |
599 | de_fault (to_mourn_inferior, | |
600 | (void (*) (void)) | |
601 | noprocess); | |
602 | de_fault (to_can_run, | |
603 | return_zero); | |
604 | de_fault (to_notice_signals, | |
39f77062 | 605 | (void (*) (ptid_t)) |
0d06e24b JM |
606 | target_ignore); |
607 | de_fault (to_thread_alive, | |
39f77062 | 608 | (int (*) (ptid_t)) |
0d06e24b JM |
609 | return_zero); |
610 | de_fault (to_find_new_threads, | |
611 | (void (*) (void)) | |
612 | target_ignore); | |
613 | de_fault (to_extra_thread_info, | |
614 | (char *(*) (struct thread_info *)) | |
615 | return_zero); | |
616 | de_fault (to_stop, | |
617 | (void (*) (void)) | |
618 | target_ignore); | |
0088c768 AC |
619 | current_target.to_read_partial = default_read_partial; |
620 | current_target.to_write_partial = default_write_partial; | |
0d06e24b | 621 | de_fault (to_rcmd, |
d9fcf2fb | 622 | (void (*) (char *, struct ui_file *)) |
0d06e24b JM |
623 | tcomplain); |
624 | de_fault (to_enable_exception_callback, | |
625 | (struct symtab_and_line * (*) (enum exception_event_kind, int)) | |
626 | nosupport_runtime); | |
627 | de_fault (to_get_current_exception_event, | |
628 | (struct exception_event_record * (*) (void)) | |
629 | nosupport_runtime); | |
630 | de_fault (to_pid_to_exec_file, | |
631 | (char *(*) (int)) | |
632 | return_zero); | |
0d06e24b JM |
633 | de_fault (to_can_async_p, |
634 | (int (*) (void)) | |
635 | return_zero); | |
636 | de_fault (to_is_async_p, | |
637 | (int (*) (void)) | |
638 | return_zero); | |
639 | de_fault (to_async, | |
640 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
641 | tcomplain); | |
c906108c | 642 | #undef de_fault |
c906108c | 643 | |
7998dfc3 AC |
644 | /* Finally, position the target-stack beneath the squashed |
645 | "current_target". That way code looking for a non-inherited | |
646 | target method can quickly and simply find it. */ | |
647 | current_target.beneath = target_stack; | |
c906108c SS |
648 | } |
649 | ||
650 | /* Push a new target type into the stack of the existing target accessors, | |
651 | possibly superseding some of the existing accessors. | |
652 | ||
653 | Result is zero if the pushed target ended up on top of the stack, | |
654 | nonzero if at least one target is on top of it. | |
655 | ||
656 | Rather than allow an empty stack, we always have the dummy target at | |
657 | the bottom stratum, so we can call the function vectors without | |
658 | checking them. */ | |
659 | ||
660 | int | |
fba45db2 | 661 | push_target (struct target_ops *t) |
c906108c | 662 | { |
258b763a | 663 | struct target_ops **cur; |
c906108c SS |
664 | |
665 | /* Check magic number. If wrong, it probably means someone changed | |
666 | the struct definition, but not all the places that initialize one. */ | |
667 | if (t->to_magic != OPS_MAGIC) | |
668 | { | |
c5aa993b JM |
669 | fprintf_unfiltered (gdb_stderr, |
670 | "Magic number of %s target struct wrong\n", | |
671 | t->to_shortname); | |
e1e9e218 | 672 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
673 | } |
674 | ||
258b763a AC |
675 | /* Find the proper stratum to install this target in. */ |
676 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 677 | { |
258b763a | 678 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
679 | break; |
680 | } | |
681 | ||
258b763a AC |
682 | /* If there's already targets at this stratum, remove them. */ |
683 | /* FIXME: cagney/2003-10-15: I think this should be poping all | |
684 | targets to CUR, and not just those at this stratum level. */ | |
685 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
686 | { | |
687 | /* There's already something at this stratum level. Close it, | |
688 | and un-hook it from the stack. */ | |
689 | struct target_ops *tmp = (*cur); | |
690 | (*cur) = (*cur)->beneath; | |
691 | tmp->beneath = NULL; | |
f1c07ab0 | 692 | target_close (tmp, 0); |
258b763a | 693 | } |
c906108c SS |
694 | |
695 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
696 | t->beneath = (*cur); |
697 | (*cur) = t; | |
c906108c SS |
698 | |
699 | update_current_target (); | |
700 | ||
c906108c SS |
701 | if (targetdebug) |
702 | setup_target_debug (); | |
c906108c | 703 | |
258b763a AC |
704 | /* Not on top? */ |
705 | return (t != target_stack); | |
c906108c SS |
706 | } |
707 | ||
708 | /* Remove a target_ops vector from the stack, wherever it may be. | |
709 | Return how many times it was removed (0 or 1). */ | |
710 | ||
711 | int | |
fba45db2 | 712 | unpush_target (struct target_ops *t) |
c906108c | 713 | { |
258b763a AC |
714 | struct target_ops **cur; |
715 | struct target_ops *tmp; | |
c906108c | 716 | |
f1c07ab0 | 717 | target_close (t, 0); |
c906108c SS |
718 | |
719 | /* Look for the specified target. Note that we assume that a target | |
720 | can only occur once in the target stack. */ | |
721 | ||
258b763a AC |
722 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
723 | { | |
724 | if ((*cur) == t) | |
725 | break; | |
726 | } | |
c906108c | 727 | |
258b763a | 728 | if ((*cur) == NULL) |
c906108c SS |
729 | return 0; /* Didn't find target_ops, quit now */ |
730 | ||
731 | /* Unchain the target */ | |
258b763a AC |
732 | tmp = (*cur); |
733 | (*cur) = (*cur)->beneath; | |
734 | tmp->beneath = NULL; | |
c906108c SS |
735 | |
736 | update_current_target (); | |
c906108c SS |
737 | |
738 | return 1; | |
739 | } | |
740 | ||
741 | void | |
fba45db2 | 742 | pop_target (void) |
c906108c | 743 | { |
f1c07ab0 | 744 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 745 | if (unpush_target (target_stack) == 1) |
c906108c SS |
746 | return; |
747 | ||
c5aa993b JM |
748 | fprintf_unfiltered (gdb_stderr, |
749 | "pop_target couldn't find target %s\n", | |
750 | current_target.to_shortname); | |
e1e9e218 | 751 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
752 | } |
753 | ||
754 | #undef MIN | |
755 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
756 | ||
757 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
758 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
759 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
760 | is responsible for freeing it. Return the number of bytes successfully | |
761 | read. */ | |
762 | ||
763 | int | |
fba45db2 | 764 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
765 | { |
766 | int tlen, origlen, offset, i; | |
767 | char buf[4]; | |
768 | int errcode = 0; | |
769 | char *buffer; | |
770 | int buffer_allocated; | |
771 | char *bufptr; | |
772 | unsigned int nbytes_read = 0; | |
773 | ||
774 | /* Small for testing. */ | |
775 | buffer_allocated = 4; | |
776 | buffer = xmalloc (buffer_allocated); | |
777 | bufptr = buffer; | |
778 | ||
779 | origlen = len; | |
780 | ||
781 | while (len > 0) | |
782 | { | |
783 | tlen = MIN (len, 4 - (memaddr & 3)); | |
784 | offset = memaddr & 3; | |
785 | ||
d4b2399a | 786 | errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0); |
c906108c SS |
787 | if (errcode != 0) |
788 | { | |
789 | /* The transfer request might have crossed the boundary to an | |
790 | unallocated region of memory. Retry the transfer, requesting | |
791 | a single byte. */ | |
792 | tlen = 1; | |
793 | offset = 0; | |
d4b2399a | 794 | errcode = target_xfer_memory (memaddr, buf, 1, 0); |
c906108c SS |
795 | if (errcode != 0) |
796 | goto done; | |
797 | } | |
798 | ||
799 | if (bufptr - buffer + tlen > buffer_allocated) | |
800 | { | |
801 | unsigned int bytes; | |
802 | bytes = bufptr - buffer; | |
803 | buffer_allocated *= 2; | |
804 | buffer = xrealloc (buffer, buffer_allocated); | |
805 | bufptr = buffer + bytes; | |
806 | } | |
807 | ||
808 | for (i = 0; i < tlen; i++) | |
809 | { | |
810 | *bufptr++ = buf[i + offset]; | |
811 | if (buf[i + offset] == '\000') | |
812 | { | |
813 | nbytes_read += i + 1; | |
814 | goto done; | |
815 | } | |
816 | } | |
817 | ||
818 | memaddr += tlen; | |
819 | len -= tlen; | |
820 | nbytes_read += tlen; | |
821 | } | |
c5aa993b | 822 | done: |
c906108c SS |
823 | if (errnop != NULL) |
824 | *errnop = errcode; | |
825 | if (string != NULL) | |
826 | *string = buffer; | |
827 | return nbytes_read; | |
828 | } | |
829 | ||
8db32d44 AC |
830 | /* Find a section containing ADDR. */ |
831 | struct section_table * | |
832 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
833 | { | |
834 | struct section_table *secp; | |
835 | for (secp = target->to_sections; | |
836 | secp < target->to_sections_end; | |
837 | secp++) | |
838 | { | |
839 | if (addr >= secp->addr && addr < secp->endaddr) | |
840 | return secp; | |
841 | } | |
842 | return NULL; | |
843 | } | |
844 | ||
c906108c SS |
845 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
846 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
847 | if any error occurs. | |
848 | ||
849 | If an error occurs, no guarantee is made about the contents of the data at | |
850 | MYADDR. In particular, the caller should not depend upon partial reads | |
851 | filling the buffer with good data. There is no way for the caller to know | |
852 | how much good data might have been transfered anyway. Callers that can | |
853 | deal with partial reads should call target_read_memory_partial. */ | |
854 | ||
855 | int | |
fba45db2 | 856 | target_read_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 857 | { |
d4b2399a | 858 | return target_xfer_memory (memaddr, myaddr, len, 0); |
c906108c SS |
859 | } |
860 | ||
c906108c | 861 | int |
fba45db2 | 862 | target_write_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 863 | { |
d4b2399a | 864 | return target_xfer_memory (memaddr, myaddr, len, 1); |
c906108c | 865 | } |
c5aa993b | 866 | |
3a11626d MS |
867 | static int trust_readonly = 0; |
868 | ||
67e0617e C |
869 | /* Move memory to or from the targets. The top target gets priority; |
870 | if it cannot handle it, it is offered to the next one down, etc. | |
c906108c | 871 | |
67e0617e | 872 | Result is -1 on error, or the number of bytes transfered. */ |
c906108c | 873 | |
4930751a | 874 | int |
29e57380 C |
875 | do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
876 | struct mem_attrib *attrib) | |
c906108c | 877 | { |
c906108c | 878 | int res; |
4930751a | 879 | int done = 0; |
c906108c | 880 | struct target_ops *t; |
c906108c SS |
881 | |
882 | /* Zero length requests are ok and require no work. */ | |
883 | if (len == 0) | |
884 | return 0; | |
885 | ||
c906108c SS |
886 | /* to_xfer_memory is not guaranteed to set errno, even when it returns |
887 | 0. */ | |
888 | errno = 0; | |
889 | ||
3a11626d MS |
890 | if (!write && trust_readonly) |
891 | { | |
8db32d44 | 892 | struct section_table *secp; |
2ceb85d0 BE |
893 | /* User-settable option, "trust-readonly-sections". If true, |
894 | then memory from any SEC_READONLY bfd section may be read | |
8db32d44 AC |
895 | directly from the bfd file. */ |
896 | secp = target_section_by_addr (¤t_target, memaddr); | |
897 | if (secp != NULL | |
898 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
899 | & SEC_READONLY)) | |
900 | return xfer_memory (memaddr, myaddr, len, 0, attrib, ¤t_target); | |
3a11626d MS |
901 | } |
902 | ||
67e0617e | 903 | /* The quick case is that the top target can handle the transfer. */ |
c906108c | 904 | res = current_target.to_xfer_memory |
29e57380 | 905 | (memaddr, myaddr, len, write, attrib, ¤t_target); |
c906108c | 906 | |
67e0617e C |
907 | /* If res <= 0 then we call it again in the loop. Ah well. */ |
908 | if (res <= 0) | |
c906108c | 909 | { |
258b763a | 910 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 911 | { |
c906108c SS |
912 | if (!t->to_has_memory) |
913 | continue; | |
914 | ||
29e57380 | 915 | res = t->to_xfer_memory (memaddr, myaddr, len, write, attrib, t); |
c906108c SS |
916 | if (res > 0) |
917 | break; /* Handled all or part of xfer */ | |
918 | if (t->to_has_all_memory) | |
919 | break; | |
920 | } | |
921 | ||
4930751a | 922 | if (res <= 0) |
67e0617e | 923 | return -1; |
4930751a | 924 | } |
67e0617e C |
925 | |
926 | return res; | |
4930751a C |
927 | } |
928 | ||
67e0617e C |
929 | |
930 | /* Perform a memory transfer. Iterate until the entire region has | |
931 | been transfered. | |
932 | ||
933 | Result is 0 or errno value. */ | |
934 | ||
4930751a C |
935 | static int |
936 | target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write) | |
937 | { | |
938 | int res; | |
29e57380 C |
939 | int reg_len; |
940 | struct mem_region *region; | |
4930751a C |
941 | |
942 | /* Zero length requests are ok and require no work. */ | |
943 | if (len == 0) | |
944 | { | |
945 | return 0; | |
946 | } | |
947 | ||
948 | while (len > 0) | |
949 | { | |
29e57380 C |
950 | region = lookup_mem_region(memaddr); |
951 | if (memaddr + len < region->hi) | |
952 | reg_len = len; | |
953 | else | |
954 | reg_len = region->hi - memaddr; | |
955 | ||
956 | switch (region->attrib.mode) | |
c906108c | 957 | { |
29e57380 C |
958 | case MEM_RO: |
959 | if (write) | |
960 | return EIO; | |
961 | break; | |
962 | ||
963 | case MEM_WO: | |
c906108c | 964 | if (!write) |
c906108c | 965 | return EIO; |
29e57380 | 966 | break; |
c906108c | 967 | } |
4930751a | 968 | |
29e57380 C |
969 | while (reg_len > 0) |
970 | { | |
971 | if (region->attrib.cache) | |
8add0441 | 972 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, |
29e57380 C |
973 | reg_len, write); |
974 | else | |
8add0441 | 975 | res = do_xfer_memory (memaddr, myaddr, reg_len, write, |
29e57380 C |
976 | ®ion->attrib); |
977 | ||
978 | if (res <= 0) | |
979 | { | |
980 | /* If this address is for nonexistent memory, read zeros | |
981 | if reading, or do nothing if writing. Return | |
982 | error. */ | |
983 | if (!write) | |
984 | memset (myaddr, 0, len); | |
985 | if (errno == 0) | |
986 | return EIO; | |
987 | else | |
988 | return errno; | |
989 | } | |
990 | ||
991 | memaddr += res; | |
992 | myaddr += res; | |
993 | len -= res; | |
994 | reg_len -= res; | |
995 | } | |
c906108c | 996 | } |
4930751a | 997 | |
c906108c SS |
998 | return 0; /* We managed to cover it all somehow. */ |
999 | } | |
1000 | ||
1001 | ||
67e0617e C |
1002 | /* Perform a partial memory transfer. |
1003 | ||
1004 | Result is -1 on error, or the number of bytes transfered. */ | |
917317f4 JM |
1005 | |
1006 | static int | |
4930751a | 1007 | target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len, |
917317f4 JM |
1008 | int write_p, int *err) |
1009 | { | |
1010 | int res; | |
29e57380 C |
1011 | int reg_len; |
1012 | struct mem_region *region; | |
917317f4 JM |
1013 | |
1014 | /* Zero length requests are ok and require no work. */ | |
1015 | if (len == 0) | |
1016 | { | |
1017 | *err = 0; | |
1018 | return 0; | |
1019 | } | |
1020 | ||
29e57380 C |
1021 | region = lookup_mem_region(memaddr); |
1022 | if (memaddr + len < region->hi) | |
1023 | reg_len = len; | |
1024 | else | |
1025 | reg_len = region->hi - memaddr; | |
1026 | ||
1027 | switch (region->attrib.mode) | |
1028 | { | |
1029 | case MEM_RO: | |
1030 | if (write_p) | |
1031 | { | |
1032 | *err = EIO; | |
873406a6 | 1033 | return -1; |
29e57380 C |
1034 | } |
1035 | break; | |
1036 | ||
1037 | case MEM_WO: | |
1038 | if (write_p) | |
1039 | { | |
1040 | *err = EIO; | |
873406a6 | 1041 | return -1; |
29e57380 C |
1042 | } |
1043 | break; | |
1044 | } | |
1045 | ||
1046 | if (region->attrib.cache) | |
1047 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, | |
1048 | reg_len, write_p); | |
1049 | else | |
1050 | res = do_xfer_memory (memaddr, myaddr, reg_len, write_p, | |
1051 | ®ion->attrib); | |
1052 | ||
4930751a | 1053 | if (res <= 0) |
917317f4 | 1054 | { |
4930751a C |
1055 | if (errno != 0) |
1056 | *err = errno; | |
1057 | else | |
1058 | *err = EIO; | |
917317f4 | 1059 | |
4930751a | 1060 | return -1; |
917317f4 JM |
1061 | } |
1062 | ||
4930751a | 1063 | *err = 0; |
67e0617e | 1064 | return res; |
917317f4 JM |
1065 | } |
1066 | ||
1067 | int | |
1068 | target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1069 | { | |
1070 | return target_xfer_memory_partial (memaddr, buf, len, 0, err); | |
1071 | } | |
1072 | ||
1073 | int | |
1074 | target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1075 | { | |
1076 | return target_xfer_memory_partial (memaddr, buf, len, 1, err); | |
1077 | } | |
1078 | ||
1e3ff5ad AC |
1079 | /* More generic transfers. */ |
1080 | ||
0088c768 AC |
1081 | static LONGEST |
1082 | default_read_partial (struct target_ops *ops, | |
1083 | enum target_object object, | |
1084 | const char *annex, void *buf, | |
1085 | ULONGEST offset, LONGEST len) | |
1086 | { | |
1087 | if (object == TARGET_OBJECT_MEMORY | |
1088 | && ops->to_xfer_memory != NULL) | |
1089 | /* If available, fall back to the target's "to_xfer_memory" | |
1090 | method. */ | |
1091 | { | |
1092 | int xfered; | |
1093 | errno = 0; | |
1094 | xfered = ops->to_xfer_memory (offset, buf, len, 0/*read*/, NULL, ops); | |
1095 | if (xfered > 0) | |
1096 | return xfered; | |
1097 | else if (xfered == 0 && errno == 0) | |
1098 | /* "to_xfer_memory" uses 0, cross checked against ERRNO as one | |
1099 | indication of an error. */ | |
1100 | return 0; | |
1101 | else | |
1102 | return -1; | |
1103 | } | |
1104 | else if (ops->beneath != NULL) | |
1105 | return target_read_partial (ops->beneath, object, annex, buf, offset, len); | |
1106 | else | |
1107 | return -1; | |
1108 | } | |
1109 | ||
1110 | static LONGEST | |
1111 | default_write_partial (struct target_ops *ops, | |
1112 | enum target_object object, | |
1113 | const char *annex, const void *buf, | |
1114 | ULONGEST offset, LONGEST len) | |
1115 | { | |
1116 | if (object == TARGET_OBJECT_MEMORY | |
1117 | && ops->to_xfer_memory != NULL) | |
1118 | /* If available, fall back to the target's "to_xfer_memory" | |
1119 | method. */ | |
1120 | { | |
1121 | int xfered; | |
1122 | errno = 0; | |
1123 | { | |
1124 | void *buffer = xmalloc (len); | |
1125 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1126 | memcpy (buffer, buf, len); | |
1127 | xfered = ops->to_xfer_memory (offset, buffer, len, 1/*write*/, NULL, | |
1128 | ops); | |
1129 | do_cleanups (cleanup); | |
1130 | } | |
1131 | if (xfered > 0) | |
1132 | return xfered; | |
1133 | else if (xfered == 0 && errno == 0) | |
1134 | /* "to_xfer_memory" uses 0, cross checked against ERRNO as one | |
1135 | indication of an error. */ | |
1136 | return 0; | |
1137 | else | |
1138 | return -1; | |
1139 | } | |
1140 | else if (ops->beneath != NULL) | |
1141 | return target_write_partial (ops->beneath, object, annex, buf, offset, | |
1142 | len); | |
1143 | else | |
1144 | return -1; | |
1145 | } | |
1146 | ||
1147 | /* Target vector read/write partial wrapper functions. | |
1148 | ||
1149 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1150 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1151 | easier. */ | |
1152 | ||
1e3ff5ad AC |
1153 | LONGEST |
1154 | target_read_partial (struct target_ops *ops, | |
1155 | enum target_object object, | |
1156 | const char *annex, void *buf, | |
1157 | ULONGEST offset, LONGEST len) | |
1158 | { | |
0088c768 AC |
1159 | gdb_assert (ops->to_read_partial != NULL); |
1160 | return ops->to_read_partial (ops, object, annex, buf, offset, len); | |
1e3ff5ad AC |
1161 | } |
1162 | ||
1163 | LONGEST | |
1164 | target_write_partial (struct target_ops *ops, | |
1165 | enum target_object object, | |
1166 | const char *annex, const void *buf, | |
1167 | ULONGEST offset, LONGEST len) | |
1168 | { | |
0088c768 AC |
1169 | gdb_assert (ops->to_write_partial != NULL); |
1170 | return ops->to_write_partial (ops, object, annex, buf, offset, len); | |
1e3ff5ad AC |
1171 | } |
1172 | ||
1173 | /* Wrappers to perform the full transfer. */ | |
1174 | LONGEST | |
1175 | target_read (struct target_ops *ops, | |
1176 | enum target_object object, | |
1177 | const char *annex, void *buf, | |
1178 | ULONGEST offset, LONGEST len) | |
1179 | { | |
1180 | LONGEST xfered = 0; | |
1181 | while (xfered < len) | |
1182 | { | |
0088c768 AC |
1183 | LONGEST xfer = target_read_partial (ops, object, annex, |
1184 | (bfd_byte *) buf + xfered, | |
1185 | offset + xfered, len - xfered); | |
1e3ff5ad | 1186 | /* Call an observer, notifying them of the xfer progress? */ |
0088c768 AC |
1187 | if (xfer <= 0) |
1188 | /* Call memory_error? */ | |
1189 | return -1; | |
1e3ff5ad AC |
1190 | xfered += xfer; |
1191 | QUIT; | |
1192 | } | |
1193 | return len; | |
1194 | } | |
1195 | ||
1196 | LONGEST | |
1197 | target_write (struct target_ops *ops, | |
1198 | enum target_object object, | |
1199 | const char *annex, const void *buf, | |
1200 | ULONGEST offset, LONGEST len) | |
1201 | { | |
1202 | LONGEST xfered = 0; | |
1203 | while (xfered < len) | |
1204 | { | |
1205 | LONGEST xfer = target_write_partial (ops, object, annex, | |
1206 | (bfd_byte *) buf + xfered, | |
1207 | offset + xfered, len - xfered); | |
1208 | /* Call an observer, notifying them of the xfer progress? */ | |
0088c768 AC |
1209 | if (xfer <= 0) |
1210 | /* Call memory_error? */ | |
1211 | return -1; | |
1e3ff5ad AC |
1212 | xfered += xfer; |
1213 | QUIT; | |
1214 | } | |
1215 | return len; | |
1216 | } | |
1217 | ||
b6591e8b AC |
1218 | /* Memory transfer methods. */ |
1219 | ||
1220 | void | |
1221 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, void *buf, | |
1222 | LONGEST len) | |
1223 | { | |
1224 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1225 | != len) | |
1226 | memory_error (EIO, addr); | |
1227 | } | |
1228 | ||
1229 | ULONGEST | |
1230 | get_target_memory_unsigned (struct target_ops *ops, | |
1231 | CORE_ADDR addr, int len) | |
1232 | { | |
1233 | char buf[sizeof (ULONGEST)]; | |
1234 | ||
1235 | gdb_assert (len <= sizeof (buf)); | |
1236 | get_target_memory (ops, addr, buf, len); | |
1237 | return extract_unsigned_integer (buf, len); | |
1238 | } | |
1239 | ||
c906108c | 1240 | static void |
fba45db2 | 1241 | target_info (char *args, int from_tty) |
c906108c SS |
1242 | { |
1243 | struct target_ops *t; | |
c906108c | 1244 | int has_all_mem = 0; |
c5aa993b | 1245 | |
c906108c SS |
1246 | if (symfile_objfile != NULL) |
1247 | printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name); | |
1248 | ||
1249 | #ifdef FILES_INFO_HOOK | |
1250 | if (FILES_INFO_HOOK ()) | |
1251 | return; | |
1252 | #endif | |
1253 | ||
258b763a | 1254 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1255 | { |
c906108c SS |
1256 | if (!t->to_has_memory) |
1257 | continue; | |
1258 | ||
c5aa993b | 1259 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1260 | continue; |
1261 | if (has_all_mem) | |
c5aa993b JM |
1262 | printf_unfiltered ("\tWhile running this, GDB does not access memory from...\n"); |
1263 | printf_unfiltered ("%s:\n", t->to_longname); | |
1264 | (t->to_files_info) (t); | |
c906108c SS |
1265 | has_all_mem = t->to_has_all_memory; |
1266 | } | |
1267 | } | |
1268 | ||
1269 | /* This is to be called by the open routine before it does | |
1270 | anything. */ | |
1271 | ||
1272 | void | |
fba45db2 | 1273 | target_preopen (int from_tty) |
c906108c | 1274 | { |
c5aa993b | 1275 | dont_repeat (); |
c906108c SS |
1276 | |
1277 | if (target_has_execution) | |
c5aa993b | 1278 | { |
adf40b2e JM |
1279 | if (!from_tty |
1280 | || query ("A program is being debugged already. Kill it? ")) | |
c5aa993b | 1281 | target_kill (); |
c906108c | 1282 | else |
c5aa993b | 1283 | error ("Program not killed."); |
c906108c SS |
1284 | } |
1285 | ||
1286 | /* Calling target_kill may remove the target from the stack. But if | |
1287 | it doesn't (which seems like a win for UDI), remove it now. */ | |
1288 | ||
1289 | if (target_has_execution) | |
1290 | pop_target (); | |
1291 | } | |
1292 | ||
1293 | /* Detach a target after doing deferred register stores. */ | |
1294 | ||
1295 | void | |
fba45db2 | 1296 | target_detach (char *args, int from_tty) |
c906108c SS |
1297 | { |
1298 | /* Handle any optimized stores to the inferior. */ | |
1299 | #ifdef DO_DEFERRED_STORES | |
1300 | DO_DEFERRED_STORES; | |
1301 | #endif | |
1302 | (current_target.to_detach) (args, from_tty); | |
1303 | } | |
1304 | ||
6ad8ae5c DJ |
1305 | void |
1306 | target_disconnect (char *args, int from_tty) | |
1307 | { | |
1308 | /* Handle any optimized stores to the inferior. */ | |
1309 | #ifdef DO_DEFERRED_STORES | |
1310 | DO_DEFERRED_STORES; | |
1311 | #endif | |
1312 | (current_target.to_disconnect) (args, from_tty); | |
1313 | } | |
1314 | ||
c906108c | 1315 | void |
fba45db2 | 1316 | target_link (char *modname, CORE_ADDR *t_reloc) |
c906108c | 1317 | { |
c5aa993b | 1318 | if (STREQ (current_target.to_shortname, "rombug")) |
c906108c SS |
1319 | { |
1320 | (current_target.to_lookup_symbol) (modname, t_reloc); | |
1321 | if (*t_reloc == 0) | |
c5aa993b | 1322 | error ("Unable to link to %s and get relocation in rombug", modname); |
c906108c SS |
1323 | } |
1324 | else | |
2acceee2 | 1325 | *t_reloc = (CORE_ADDR) -1; |
c906108c SS |
1326 | } |
1327 | ||
ed9a39eb JM |
1328 | int |
1329 | target_async_mask (int mask) | |
1330 | { | |
1331 | int saved_async_masked_status = target_async_mask_value; | |
1332 | target_async_mask_value = mask; | |
1333 | return saved_async_masked_status; | |
1334 | } | |
1335 | ||
c906108c SS |
1336 | /* Look through the list of possible targets for a target that can |
1337 | execute a run or attach command without any other data. This is | |
1338 | used to locate the default process stratum. | |
1339 | ||
1340 | Result is always valid (error() is called for errors). */ | |
1341 | ||
1342 | static struct target_ops * | |
fba45db2 | 1343 | find_default_run_target (char *do_mesg) |
c906108c SS |
1344 | { |
1345 | struct target_ops **t; | |
1346 | struct target_ops *runable = NULL; | |
1347 | int count; | |
1348 | ||
1349 | count = 0; | |
1350 | ||
1351 | for (t = target_structs; t < target_structs + target_struct_size; | |
1352 | ++t) | |
1353 | { | |
c5aa993b | 1354 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
1355 | { |
1356 | runable = *t; | |
1357 | ++count; | |
1358 | } | |
1359 | } | |
1360 | ||
1361 | if (count != 1) | |
1362 | error ("Don't know how to %s. Try \"help target\".", do_mesg); | |
1363 | ||
1364 | return runable; | |
1365 | } | |
1366 | ||
1367 | void | |
fba45db2 | 1368 | find_default_attach (char *args, int from_tty) |
c906108c SS |
1369 | { |
1370 | struct target_ops *t; | |
1371 | ||
c5aa993b | 1372 | t = find_default_run_target ("attach"); |
c906108c SS |
1373 | (t->to_attach) (args, from_tty); |
1374 | return; | |
1375 | } | |
1376 | ||
c906108c | 1377 | void |
fba45db2 | 1378 | find_default_create_inferior (char *exec_file, char *allargs, char **env) |
c906108c SS |
1379 | { |
1380 | struct target_ops *t; | |
1381 | ||
c5aa993b | 1382 | t = find_default_run_target ("run"); |
c906108c SS |
1383 | (t->to_create_inferior) (exec_file, allargs, env); |
1384 | return; | |
1385 | } | |
1386 | ||
ccaa32c7 GS |
1387 | static int |
1388 | default_region_size_ok_for_hw_watchpoint (int byte_count) | |
1389 | { | |
b1e29e33 | 1390 | return (byte_count <= DEPRECATED_REGISTER_SIZE); |
ccaa32c7 GS |
1391 | } |
1392 | ||
c906108c | 1393 | static int |
fba45db2 | 1394 | return_zero (void) |
c906108c SS |
1395 | { |
1396 | return 0; | |
1397 | } | |
1398 | ||
1399 | static int | |
fba45db2 | 1400 | return_one (void) |
c906108c SS |
1401 | { |
1402 | return 1; | |
1403 | } | |
1404 | ||
ccaa32c7 GS |
1405 | static int |
1406 | return_minus_one (void) | |
1407 | { | |
1408 | return -1; | |
1409 | } | |
1410 | ||
6426a772 JM |
1411 | /* |
1412 | * Resize the to_sections pointer. Also make sure that anyone that | |
1413 | * was holding on to an old value of it gets updated. | |
1414 | * Returns the old size. | |
1415 | */ | |
1416 | ||
1417 | int | |
1418 | target_resize_to_sections (struct target_ops *target, int num_added) | |
1419 | { | |
1420 | struct target_ops **t; | |
1421 | struct section_table *old_value; | |
1422 | int old_count; | |
1423 | ||
1424 | old_value = target->to_sections; | |
1425 | ||
1426 | if (target->to_sections) | |
1427 | { | |
1428 | old_count = target->to_sections_end - target->to_sections; | |
1429 | target->to_sections = (struct section_table *) | |
1430 | xrealloc ((char *) target->to_sections, | |
1431 | (sizeof (struct section_table)) * (num_added + old_count)); | |
1432 | } | |
1433 | else | |
1434 | { | |
1435 | old_count = 0; | |
1436 | target->to_sections = (struct section_table *) | |
1437 | xmalloc ((sizeof (struct section_table)) * num_added); | |
1438 | } | |
1439 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
1440 | ||
1441 | /* Check to see if anyone else was pointing to this structure. | |
1442 | If old_value was null, then no one was. */ | |
1443 | ||
1444 | if (old_value) | |
1445 | { | |
1446 | for (t = target_structs; t < target_structs + target_struct_size; | |
1447 | ++t) | |
1448 | { | |
1449 | if ((*t)->to_sections == old_value) | |
1450 | { | |
1451 | (*t)->to_sections = target->to_sections; | |
1452 | (*t)->to_sections_end = target->to_sections_end; | |
1453 | } | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | return old_count; | |
1458 | ||
1459 | } | |
1460 | ||
07cd4b97 JB |
1461 | /* Remove all target sections taken from ABFD. |
1462 | ||
1463 | Scan the current target stack for targets whose section tables | |
1464 | refer to sections from BFD, and remove those sections. We use this | |
1465 | when we notice that the inferior has unloaded a shared object, for | |
1466 | example. */ | |
1467 | void | |
1468 | remove_target_sections (bfd *abfd) | |
1469 | { | |
1470 | struct target_ops **t; | |
1471 | ||
1472 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
1473 | { | |
1474 | struct section_table *src, *dest; | |
1475 | ||
1476 | dest = (*t)->to_sections; | |
1477 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
1478 | if (src->bfd != abfd) | |
1479 | { | |
1480 | /* Keep this section. */ | |
1481 | if (dest < src) *dest = *src; | |
1482 | dest++; | |
1483 | } | |
1484 | ||
1485 | /* If we've dropped any sections, resize the section table. */ | |
1486 | if (dest < src) | |
1487 | target_resize_to_sections (*t, dest - src); | |
1488 | } | |
1489 | } | |
1490 | ||
1491 | ||
1492 | ||
1493 | ||
7a292a7a SS |
1494 | /* Find a single runnable target in the stack and return it. If for |
1495 | some reason there is more than one, return NULL. */ | |
1496 | ||
1497 | struct target_ops * | |
fba45db2 | 1498 | find_run_target (void) |
7a292a7a SS |
1499 | { |
1500 | struct target_ops **t; | |
1501 | struct target_ops *runable = NULL; | |
1502 | int count; | |
c5aa993b | 1503 | |
7a292a7a | 1504 | count = 0; |
c5aa993b | 1505 | |
7a292a7a SS |
1506 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
1507 | { | |
c5aa993b | 1508 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
1509 | { |
1510 | runable = *t; | |
1511 | ++count; | |
1512 | } | |
1513 | } | |
c5aa993b | 1514 | |
7a292a7a SS |
1515 | return (count == 1 ? runable : NULL); |
1516 | } | |
1517 | ||
ed9a39eb JM |
1518 | /* Find a single core_stratum target in the list of targets and return it. |
1519 | If for some reason there is more than one, return NULL. */ | |
1520 | ||
c906108c | 1521 | struct target_ops * |
fba45db2 | 1522 | find_core_target (void) |
c906108c SS |
1523 | { |
1524 | struct target_ops **t; | |
1525 | struct target_ops *runable = NULL; | |
1526 | int count; | |
c5aa993b | 1527 | |
c906108c | 1528 | count = 0; |
c5aa993b | 1529 | |
c906108c SS |
1530 | for (t = target_structs; t < target_structs + target_struct_size; |
1531 | ++t) | |
1532 | { | |
1533 | if ((*t)->to_stratum == core_stratum) | |
1534 | { | |
1535 | runable = *t; | |
1536 | ++count; | |
1537 | } | |
1538 | } | |
c5aa993b JM |
1539 | |
1540 | return (count == 1 ? runable : NULL); | |
c906108c | 1541 | } |
ed9a39eb JM |
1542 | |
1543 | /* | |
1544 | * Find the next target down the stack from the specified target. | |
1545 | */ | |
1546 | ||
1547 | struct target_ops * | |
fba45db2 | 1548 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 1549 | { |
258b763a | 1550 | return t->beneath; |
ed9a39eb JM |
1551 | } |
1552 | ||
c906108c SS |
1553 | \f |
1554 | /* The inferior process has died. Long live the inferior! */ | |
1555 | ||
1556 | void | |
fba45db2 | 1557 | generic_mourn_inferior (void) |
c906108c SS |
1558 | { |
1559 | extern int show_breakpoint_hit_counts; | |
1560 | ||
39f77062 | 1561 | inferior_ptid = null_ptid; |
c906108c SS |
1562 | attach_flag = 0; |
1563 | breakpoint_init_inferior (inf_exited); | |
1564 | registers_changed (); | |
1565 | ||
1566 | #ifdef CLEAR_DEFERRED_STORES | |
1567 | /* Delete any pending stores to the inferior... */ | |
1568 | CLEAR_DEFERRED_STORES; | |
1569 | #endif | |
1570 | ||
1571 | reopen_exec_file (); | |
1572 | reinit_frame_cache (); | |
1573 | ||
1574 | /* It is confusing to the user for ignore counts to stick around | |
1575 | from previous runs of the inferior. So clear them. */ | |
1576 | /* However, it is more confusing for the ignore counts to disappear when | |
1577 | using hit counts. So don't clear them if we're counting hits. */ | |
1578 | if (!show_breakpoint_hit_counts) | |
1579 | breakpoint_clear_ignore_counts (); | |
c5b739b5 FN |
1580 | |
1581 | if (detach_hook) | |
1582 | detach_hook (); | |
c906108c SS |
1583 | } |
1584 | \f | |
c906108c SS |
1585 | /* Helper function for child_wait and the Lynx derivatives of child_wait. |
1586 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our | |
1587 | translation of that in OURSTATUS. */ | |
1588 | void | |
fba45db2 | 1589 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c SS |
1590 | { |
1591 | #ifdef CHILD_SPECIAL_WAITSTATUS | |
1592 | /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS | |
1593 | if it wants to deal with hoststatus. */ | |
1594 | if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) | |
1595 | return; | |
1596 | #endif | |
1597 | ||
1598 | if (WIFEXITED (hoststatus)) | |
1599 | { | |
1600 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1601 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
1602 | } | |
1603 | else if (!WIFSTOPPED (hoststatus)) | |
1604 | { | |
1605 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1606 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
1607 | } | |
1608 | else | |
1609 | { | |
1610 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1611 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
1612 | } | |
1613 | } | |
1614 | \f | |
c906108c | 1615 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 1616 | int (*target_activity_function) (void); |
c906108c SS |
1617 | int target_activity_fd; |
1618 | \f | |
1619 | /* Convert a normal process ID to a string. Returns the string in a static | |
1620 | buffer. */ | |
1621 | ||
1622 | char * | |
39f77062 | 1623 | normal_pid_to_str (ptid_t ptid) |
c906108c SS |
1624 | { |
1625 | static char buf[30]; | |
1626 | ||
39f77062 | 1627 | sprintf (buf, "process %d", PIDGET (ptid)); |
c906108c SS |
1628 | return buf; |
1629 | } | |
1630 | ||
1631 | /* Some targets (such as ttrace-based HPUX) don't allow us to request | |
1632 | notification of inferior events such as fork and vork immediately | |
1633 | after the inferior is created. (This because of how gdb gets an | |
1634 | inferior created via invoking a shell to do it. In such a scenario, | |
1635 | if the shell init file has commands in it, the shell will fork and | |
1636 | exec for each of those commands, and we will see each such fork | |
1637 | event. Very bad.) | |
c5aa993b | 1638 | |
c906108c SS |
1639 | This function is used by all targets that allow us to request |
1640 | notification of forks, etc at inferior creation time; e.g., in | |
1641 | target_acknowledge_forked_child. | |
c5aa993b | 1642 | */ |
392a587b | 1643 | static void |
39f77062 | 1644 | normal_target_post_startup_inferior (ptid_t ptid) |
c906108c SS |
1645 | { |
1646 | /* This space intentionally left blank. */ | |
1647 | } | |
1648 | ||
be4d1333 | 1649 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
1650 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
1651 | { | |
1652 | error ("No target."); | |
1653 | return 0; | |
1654 | } | |
1655 | ||
1656 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
1657 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
1658 | { | |
1659 | error ("No target."); | |
1660 | return NULL; | |
1661 | } | |
1662 | ||
c906108c SS |
1663 | /* Set up the handful of non-empty slots needed by the dummy target |
1664 | vector. */ | |
1665 | ||
1666 | static void | |
fba45db2 | 1667 | init_dummy_target (void) |
c906108c SS |
1668 | { |
1669 | dummy_target.to_shortname = "None"; | |
1670 | dummy_target.to_longname = "None"; | |
1671 | dummy_target.to_doc = ""; | |
1672 | dummy_target.to_attach = find_default_attach; | |
c906108c | 1673 | dummy_target.to_create_inferior = find_default_create_inferior; |
ed9a39eb | 1674 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 1675 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
1676 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
1677 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
c906108c SS |
1678 | dummy_target.to_magic = OPS_MAGIC; |
1679 | } | |
c906108c | 1680 | \f |
c5aa993b | 1681 | |
c906108c SS |
1682 | static struct target_ops debug_target; |
1683 | ||
1684 | static void | |
fba45db2 | 1685 | debug_to_open (char *args, int from_tty) |
c906108c SS |
1686 | { |
1687 | debug_target.to_open (args, from_tty); | |
1688 | ||
96baa820 | 1689 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
1690 | } |
1691 | ||
1692 | static void | |
fba45db2 | 1693 | debug_to_close (int quitting) |
c906108c | 1694 | { |
f1c07ab0 | 1695 | target_close (&debug_target, quitting); |
96baa820 | 1696 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
1697 | } |
1698 | ||
f1c07ab0 AC |
1699 | void |
1700 | target_close (struct target_ops *targ, int quitting) | |
1701 | { | |
1702 | if (targ->to_xclose != NULL) | |
1703 | targ->to_xclose (targ, quitting); | |
1704 | else if (targ->to_close != NULL) | |
1705 | targ->to_close (quitting); | |
1706 | } | |
1707 | ||
c906108c | 1708 | static void |
fba45db2 | 1709 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
1710 | { |
1711 | debug_target.to_attach (args, from_tty); | |
1712 | ||
96baa820 | 1713 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
1714 | } |
1715 | ||
1716 | ||
1717 | static void | |
fba45db2 | 1718 | debug_to_post_attach (int pid) |
c906108c SS |
1719 | { |
1720 | debug_target.to_post_attach (pid); | |
1721 | ||
96baa820 | 1722 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
1723 | } |
1724 | ||
c906108c | 1725 | static void |
fba45db2 | 1726 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
1727 | { |
1728 | debug_target.to_detach (args, from_tty); | |
1729 | ||
96baa820 | 1730 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
1731 | } |
1732 | ||
6ad8ae5c DJ |
1733 | static void |
1734 | debug_to_disconnect (char *args, int from_tty) | |
1735 | { | |
1736 | debug_target.to_disconnect (args, from_tty); | |
1737 | ||
1738 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1739 | args, from_tty); | |
1740 | } | |
1741 | ||
c906108c | 1742 | static void |
39f77062 | 1743 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 1744 | { |
39f77062 | 1745 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 1746 | |
39f77062 | 1747 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
1748 | step ? "step" : "continue", |
1749 | target_signal_to_name (siggnal)); | |
1750 | } | |
1751 | ||
39f77062 KB |
1752 | static ptid_t |
1753 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 1754 | { |
39f77062 | 1755 | ptid_t retval; |
c906108c | 1756 | |
39f77062 | 1757 | retval = debug_target.to_wait (ptid, status); |
c906108c | 1758 | |
96baa820 | 1759 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
1760 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
1761 | PIDGET (retval)); | |
96baa820 | 1762 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
1763 | switch (status->kind) |
1764 | { | |
1765 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 1766 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
1767 | status->value.integer); |
1768 | break; | |
1769 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 1770 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
1771 | target_signal_to_name (status->value.sig)); |
1772 | break; | |
1773 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 1774 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
1775 | target_signal_to_name (status->value.sig)); |
1776 | break; | |
1777 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 1778 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
1779 | break; |
1780 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 1781 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
1782 | break; |
1783 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 1784 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
1785 | break; |
1786 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 1787 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
1788 | break; |
1789 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 1790 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
1791 | break; |
1792 | default: | |
96baa820 | 1793 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
1794 | break; |
1795 | } | |
1796 | ||
1797 | return retval; | |
1798 | } | |
1799 | ||
1800 | static void | |
39f77062 | 1801 | debug_to_post_wait (ptid_t ptid, int status) |
c906108c | 1802 | { |
39f77062 | 1803 | debug_target.to_post_wait (ptid, status); |
c906108c | 1804 | |
96baa820 | 1805 | fprintf_unfiltered (gdb_stdlog, "target_post_wait (%d, %d)\n", |
39f77062 | 1806 | PIDGET (ptid), status); |
c906108c SS |
1807 | } |
1808 | ||
bf0c5130 AC |
1809 | static void |
1810 | debug_print_register (const char * func, int regno) | |
1811 | { | |
1812 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1813 | if (regno >= 0 && regno < NUM_REGS + NUM_PSEUDO_REGS | |
1814 | && REGISTER_NAME (regno) != NULL && REGISTER_NAME (regno)[0] != '\0') | |
1815 | fprintf_unfiltered (gdb_stdlog, "(%s)", REGISTER_NAME (regno)); | |
1816 | else | |
1817 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1818 | if (regno >= 0) | |
1819 | { | |
1820 | int i; | |
d9d9c31f | 1821 | unsigned char buf[MAX_REGISTER_SIZE]; |
4caf0990 | 1822 | deprecated_read_register_gen (regno, buf); |
bf0c5130 | 1823 | fprintf_unfiltered (gdb_stdlog, " = "); |
12c266ea | 1824 | for (i = 0; i < DEPRECATED_REGISTER_RAW_SIZE (regno); i++) |
bf0c5130 AC |
1825 | { |
1826 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1827 | } | |
12c266ea | 1828 | if (DEPRECATED_REGISTER_RAW_SIZE (regno) <= sizeof (LONGEST)) |
bf0c5130 AC |
1829 | { |
1830 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", | |
1831 | paddr_nz (read_register (regno)), | |
1832 | paddr_d (read_register (regno))); | |
1833 | } | |
1834 | } | |
1835 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1836 | } | |
1837 | ||
c906108c | 1838 | static void |
fba45db2 | 1839 | debug_to_fetch_registers (int regno) |
c906108c SS |
1840 | { |
1841 | debug_target.to_fetch_registers (regno); | |
bf0c5130 | 1842 | debug_print_register ("target_fetch_registers", regno); |
c906108c SS |
1843 | } |
1844 | ||
1845 | static void | |
fba45db2 | 1846 | debug_to_store_registers (int regno) |
c906108c SS |
1847 | { |
1848 | debug_target.to_store_registers (regno); | |
bf0c5130 AC |
1849 | debug_print_register ("target_store_registers", regno); |
1850 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c906108c SS |
1851 | } |
1852 | ||
1853 | static void | |
fba45db2 | 1854 | debug_to_prepare_to_store (void) |
c906108c SS |
1855 | { |
1856 | debug_target.to_prepare_to_store (); | |
1857 | ||
96baa820 | 1858 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
1859 | } |
1860 | ||
1861 | static int | |
fba45db2 | 1862 | debug_to_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
29e57380 | 1863 | struct mem_attrib *attrib, |
fba45db2 | 1864 | struct target_ops *target) |
c906108c SS |
1865 | { |
1866 | int retval; | |
1867 | ||
29e57380 C |
1868 | retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write, |
1869 | attrib, target); | |
c906108c | 1870 | |
96baa820 | 1871 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 1872 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 1873 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
1874 | len, write ? "write" : "read", retval); |
1875 | ||
c5aa993b | 1876 | |
c906108c SS |
1877 | |
1878 | if (retval > 0) | |
1879 | { | |
1880 | int i; | |
1881 | ||
96baa820 | 1882 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
1883 | for (i = 0; i < retval; i++) |
1884 | { | |
1885 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
96baa820 JM |
1886 | fprintf_unfiltered (gdb_stdlog, "\n"); |
1887 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); | |
c906108c SS |
1888 | } |
1889 | } | |
1890 | ||
96baa820 | 1891 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
1892 | |
1893 | return retval; | |
1894 | } | |
1895 | ||
1896 | static void | |
fba45db2 | 1897 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
1898 | { |
1899 | debug_target.to_files_info (target); | |
1900 | ||
96baa820 | 1901 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
1902 | } |
1903 | ||
1904 | static int | |
fba45db2 | 1905 | debug_to_insert_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
1906 | { |
1907 | int retval; | |
1908 | ||
1909 | retval = debug_target.to_insert_breakpoint (addr, save); | |
1910 | ||
96baa820 | 1911 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
1912 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
1913 | (unsigned long) addr, | |
1914 | (unsigned long) retval); | |
c906108c SS |
1915 | return retval; |
1916 | } | |
1917 | ||
1918 | static int | |
fba45db2 | 1919 | debug_to_remove_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
1920 | { |
1921 | int retval; | |
1922 | ||
1923 | retval = debug_target.to_remove_breakpoint (addr, save); | |
1924 | ||
96baa820 | 1925 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
1926 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
1927 | (unsigned long) addr, | |
1928 | (unsigned long) retval); | |
c906108c SS |
1929 | return retval; |
1930 | } | |
1931 | ||
ccaa32c7 GS |
1932 | static int |
1933 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
1934 | { | |
1935 | int retval; | |
1936 | ||
1937 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
1938 | ||
1939 | fprintf_unfiltered (gdb_stdlog, | |
1940 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
1941 | (unsigned long) type, | |
1942 | (unsigned long) cnt, | |
1943 | (unsigned long) from_tty, | |
1944 | (unsigned long) retval); | |
1945 | return retval; | |
1946 | } | |
1947 | ||
1948 | static int | |
1949 | debug_to_region_size_ok_for_hw_watchpoint (int byte_count) | |
1950 | { | |
1951 | CORE_ADDR retval; | |
1952 | ||
1953 | retval = debug_target.to_region_size_ok_for_hw_watchpoint (byte_count); | |
1954 | ||
1955 | fprintf_unfiltered (gdb_stdlog, | |
1956 | "TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT (%ld) = 0x%lx\n", | |
1957 | (unsigned long) byte_count, | |
1958 | (unsigned long) retval); | |
1959 | return retval; | |
1960 | } | |
1961 | ||
1962 | static int | |
1963 | debug_to_stopped_by_watchpoint (void) | |
1964 | { | |
1965 | int retval; | |
1966 | ||
1967 | retval = debug_target.to_stopped_by_watchpoint (); | |
1968 | ||
1969 | fprintf_unfiltered (gdb_stdlog, | |
1970 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
1971 | (unsigned long) retval); | |
1972 | return retval; | |
1973 | } | |
1974 | ||
1975 | static CORE_ADDR | |
1976 | debug_to_stopped_data_address (void) | |
1977 | { | |
1978 | CORE_ADDR retval; | |
1979 | ||
1980 | retval = debug_target.to_stopped_data_address (); | |
1981 | ||
1982 | fprintf_unfiltered (gdb_stdlog, | |
1983 | "target_stopped_data_address () = 0x%lx\n", | |
1984 | (unsigned long) retval); | |
1985 | return retval; | |
1986 | } | |
1987 | ||
1988 | static int | |
1989 | debug_to_insert_hw_breakpoint (CORE_ADDR addr, char *save) | |
1990 | { | |
1991 | int retval; | |
1992 | ||
1993 | retval = debug_target.to_insert_hw_breakpoint (addr, save); | |
1994 | ||
1995 | fprintf_unfiltered (gdb_stdlog, | |
1996 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
1997 | (unsigned long) addr, | |
1998 | (unsigned long) retval); | |
1999 | return retval; | |
2000 | } | |
2001 | ||
2002 | static int | |
2003 | debug_to_remove_hw_breakpoint (CORE_ADDR addr, char *save) | |
2004 | { | |
2005 | int retval; | |
2006 | ||
2007 | retval = debug_target.to_remove_hw_breakpoint (addr, save); | |
2008 | ||
2009 | fprintf_unfiltered (gdb_stdlog, | |
2010 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
2011 | (unsigned long) addr, | |
2012 | (unsigned long) retval); | |
2013 | return retval; | |
2014 | } | |
2015 | ||
2016 | static int | |
2017 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2018 | { | |
2019 | int retval; | |
2020 | ||
2021 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2022 | ||
2023 | fprintf_unfiltered (gdb_stdlog, | |
2024 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2025 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2026 | return retval; | |
2027 | } | |
2028 | ||
2029 | static int | |
2030 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2031 | { | |
2032 | int retval; | |
2033 | ||
2034 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2035 | ||
2036 | fprintf_unfiltered (gdb_stdlog, | |
2037 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2038 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2039 | return retval; | |
2040 | } | |
2041 | ||
c906108c | 2042 | static void |
fba45db2 | 2043 | debug_to_terminal_init (void) |
c906108c SS |
2044 | { |
2045 | debug_target.to_terminal_init (); | |
2046 | ||
96baa820 | 2047 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2048 | } |
2049 | ||
2050 | static void | |
fba45db2 | 2051 | debug_to_terminal_inferior (void) |
c906108c SS |
2052 | { |
2053 | debug_target.to_terminal_inferior (); | |
2054 | ||
96baa820 | 2055 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2056 | } |
2057 | ||
2058 | static void | |
fba45db2 | 2059 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2060 | { |
2061 | debug_target.to_terminal_ours_for_output (); | |
2062 | ||
96baa820 | 2063 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2064 | } |
2065 | ||
2066 | static void | |
fba45db2 | 2067 | debug_to_terminal_ours (void) |
c906108c SS |
2068 | { |
2069 | debug_target.to_terminal_ours (); | |
2070 | ||
96baa820 | 2071 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2072 | } |
2073 | ||
a790ad35 SC |
2074 | static void |
2075 | debug_to_terminal_save_ours (void) | |
2076 | { | |
2077 | debug_target.to_terminal_save_ours (); | |
2078 | ||
2079 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2080 | } | |
2081 | ||
c906108c | 2082 | static void |
fba45db2 | 2083 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2084 | { |
2085 | debug_target.to_terminal_info (arg, from_tty); | |
2086 | ||
96baa820 | 2087 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2088 | from_tty); |
2089 | } | |
2090 | ||
2091 | static void | |
fba45db2 | 2092 | debug_to_kill (void) |
c906108c SS |
2093 | { |
2094 | debug_target.to_kill (); | |
2095 | ||
96baa820 | 2096 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2097 | } |
2098 | ||
2099 | static void | |
fba45db2 | 2100 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2101 | { |
2102 | debug_target.to_load (args, from_tty); | |
2103 | ||
96baa820 | 2104 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2105 | } |
2106 | ||
2107 | static int | |
fba45db2 | 2108 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2109 | { |
2110 | int retval; | |
2111 | ||
2112 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2113 | ||
96baa820 | 2114 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2115 | |
2116 | return retval; | |
2117 | } | |
2118 | ||
2119 | static void | |
fba45db2 | 2120 | debug_to_create_inferior (char *exec_file, char *args, char **env) |
c906108c SS |
2121 | { |
2122 | debug_target.to_create_inferior (exec_file, args, env); | |
2123 | ||
96baa820 | 2124 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx)\n", |
c906108c SS |
2125 | exec_file, args); |
2126 | } | |
2127 | ||
2128 | static void | |
39f77062 | 2129 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2130 | { |
39f77062 | 2131 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2132 | |
96baa820 | 2133 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2134 | PIDGET (ptid)); |
c906108c SS |
2135 | } |
2136 | ||
2137 | static void | |
fba45db2 | 2138 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2139 | { |
2140 | debug_target.to_acknowledge_created_inferior (pid); | |
2141 | ||
96baa820 | 2142 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2143 | pid); |
2144 | } | |
2145 | ||
c906108c | 2146 | static int |
fba45db2 | 2147 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2148 | { |
c5aa993b | 2149 | int retval; |
c906108c SS |
2150 | |
2151 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
2152 | ||
96baa820 | 2153 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2154 | pid, retval); |
c906108c SS |
2155 | |
2156 | return retval; | |
2157 | } | |
2158 | ||
2159 | static int | |
fba45db2 | 2160 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2161 | { |
c5aa993b | 2162 | int retval; |
c906108c SS |
2163 | |
2164 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2165 | ||
96baa820 | 2166 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2167 | pid, retval); |
c906108c SS |
2168 | |
2169 | return retval; | |
2170 | } | |
2171 | ||
2172 | static int | |
fba45db2 | 2173 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2174 | { |
c5aa993b | 2175 | int retval; |
c906108c SS |
2176 | |
2177 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
2178 | ||
96baa820 | 2179 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)= %d\n", |
c5aa993b | 2180 | pid, retval); |
c906108c SS |
2181 | |
2182 | return retval; | |
2183 | } | |
2184 | ||
2185 | static int | |
fba45db2 | 2186 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2187 | { |
c5aa993b | 2188 | int retval; |
c906108c SS |
2189 | |
2190 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2191 | ||
96baa820 | 2192 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2193 | pid, retval); |
c906108c SS |
2194 | |
2195 | return retval; | |
2196 | } | |
2197 | ||
6604731b DJ |
2198 | static int |
2199 | debug_to_follow_fork (int follow_child) | |
c906108c | 2200 | { |
6604731b | 2201 | int retval = debug_target.to_follow_fork (follow_child); |
c906108c | 2202 | |
6604731b DJ |
2203 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", |
2204 | follow_child, retval); | |
2205 | ||
2206 | return retval; | |
c906108c SS |
2207 | } |
2208 | ||
2209 | static int | |
fba45db2 | 2210 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2211 | { |
c5aa993b | 2212 | int retval; |
c906108c SS |
2213 | |
2214 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
2215 | ||
96baa820 | 2216 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2217 | pid, retval); |
c906108c SS |
2218 | |
2219 | return retval; | |
2220 | } | |
2221 | ||
2222 | static int | |
fba45db2 | 2223 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2224 | { |
c5aa993b | 2225 | int retval; |
c906108c SS |
2226 | |
2227 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2228 | ||
96baa820 | 2229 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2230 | pid, retval); |
c906108c SS |
2231 | |
2232 | return retval; | |
2233 | } | |
2234 | ||
c906108c | 2235 | static int |
fba45db2 | 2236 | debug_to_reported_exec_events_per_exec_call (void) |
c906108c | 2237 | { |
c5aa993b | 2238 | int reported_exec_events; |
c906108c SS |
2239 | |
2240 | reported_exec_events = debug_target.to_reported_exec_events_per_exec_call (); | |
2241 | ||
96baa820 | 2242 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2243 | "target_reported_exec_events_per_exec_call () = %d\n", |
c5aa993b | 2244 | reported_exec_events); |
c906108c SS |
2245 | |
2246 | return reported_exec_events; | |
2247 | } | |
2248 | ||
c906108c | 2249 | static int |
fba45db2 | 2250 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2251 | { |
c5aa993b | 2252 | int has_exited; |
c906108c SS |
2253 | |
2254 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2255 | ||
96baa820 | 2256 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2257 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2258 | |
2259 | return has_exited; | |
2260 | } | |
2261 | ||
2262 | static void | |
fba45db2 | 2263 | debug_to_mourn_inferior (void) |
c906108c SS |
2264 | { |
2265 | debug_target.to_mourn_inferior (); | |
2266 | ||
96baa820 | 2267 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2268 | } |
2269 | ||
2270 | static int | |
fba45db2 | 2271 | debug_to_can_run (void) |
c906108c SS |
2272 | { |
2273 | int retval; | |
2274 | ||
2275 | retval = debug_target.to_can_run (); | |
2276 | ||
96baa820 | 2277 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
2278 | |
2279 | return retval; | |
2280 | } | |
2281 | ||
2282 | static void | |
39f77062 | 2283 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 2284 | { |
39f77062 | 2285 | debug_target.to_notice_signals (ptid); |
c906108c | 2286 | |
39f77062 KB |
2287 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
2288 | PIDGET (ptid)); | |
c906108c SS |
2289 | } |
2290 | ||
2291 | static int | |
39f77062 | 2292 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
2293 | { |
2294 | int retval; | |
2295 | ||
39f77062 | 2296 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 2297 | |
96baa820 | 2298 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 2299 | PIDGET (ptid), retval); |
c906108c SS |
2300 | |
2301 | return retval; | |
2302 | } | |
2303 | ||
0d06e24b | 2304 | static void |
fba45db2 | 2305 | debug_to_find_new_threads (void) |
0d06e24b JM |
2306 | { |
2307 | debug_target.to_find_new_threads (); | |
2308 | ||
2309 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
2310 | } | |
2311 | ||
c906108c | 2312 | static void |
fba45db2 | 2313 | debug_to_stop (void) |
c906108c SS |
2314 | { |
2315 | debug_target.to_stop (); | |
2316 | ||
96baa820 | 2317 | fprintf_unfiltered (gdb_stdlog, "target_stop ()\n"); |
c906108c SS |
2318 | } |
2319 | ||
1e3ff5ad AC |
2320 | static LONGEST |
2321 | debug_to_read_partial (struct target_ops *ops, | |
2322 | enum target_object object, | |
2323 | const char *annex, void *buf, | |
2324 | ULONGEST offset, LONGEST len) | |
c906108c | 2325 | { |
1e3ff5ad AC |
2326 | LONGEST retval; |
2327 | ||
2328 | retval = target_read_partial (&debug_target, object, annex, buf, offset, | |
2329 | len); | |
c906108c | 2330 | |
1e3ff5ad AC |
2331 | fprintf_unfiltered (gdb_stdlog, |
2332 | "target_read_partial (%d, %s, 0x%lx, 0x%s, %s) = %s\n", | |
2333 | (int) object, (annex ? annex : "(null)"), | |
2334 | (long) buf, paddr_nz (offset), | |
2335 | paddr_d (len), paddr_d (retval)); | |
2336 | ||
2337 | return retval; | |
2338 | } | |
c906108c | 2339 | |
1e3ff5ad AC |
2340 | static LONGEST |
2341 | debug_to_write_partial (struct target_ops *ops, | |
2342 | enum target_object object, | |
2343 | const char *annex, const void *buf, | |
2344 | ULONGEST offset, LONGEST len) | |
2345 | { | |
2346 | LONGEST retval; | |
2347 | ||
2348 | retval = target_write_partial (&debug_target, object, annex, buf, offset, | |
2349 | len); | |
2350 | ||
2351 | fprintf_unfiltered (gdb_stdlog, | |
2352 | "target_write_partial (%d, %s, 0x%lx, 0x%s, %s) = %s\n", | |
2353 | (int) object, (annex ? annex : "(null)"), | |
2354 | (long) buf, paddr_nz (offset), | |
2355 | paddr_d (len), paddr_d (retval)); | |
c906108c SS |
2356 | |
2357 | return retval; | |
2358 | } | |
2359 | ||
96baa820 JM |
2360 | static void |
2361 | debug_to_rcmd (char *command, | |
d9fcf2fb | 2362 | struct ui_file *outbuf) |
96baa820 JM |
2363 | { |
2364 | debug_target.to_rcmd (command, outbuf); | |
2365 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
2366 | } | |
2367 | ||
c906108c | 2368 | static struct symtab_and_line * |
fba45db2 | 2369 | debug_to_enable_exception_callback (enum exception_event_kind kind, int enable) |
c906108c | 2370 | { |
7a292a7a SS |
2371 | struct symtab_and_line *result; |
2372 | result = debug_target.to_enable_exception_callback (kind, enable); | |
96baa820 | 2373 | fprintf_unfiltered (gdb_stdlog, |
c906108c SS |
2374 | "target get_exception_callback_sal (%d, %d)\n", |
2375 | kind, enable); | |
7a292a7a | 2376 | return result; |
c906108c SS |
2377 | } |
2378 | ||
2379 | static struct exception_event_record * | |
fba45db2 | 2380 | debug_to_get_current_exception_event (void) |
c906108c | 2381 | { |
7a292a7a | 2382 | struct exception_event_record *result; |
c5aa993b | 2383 | result = debug_target.to_get_current_exception_event (); |
96baa820 | 2384 | fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n"); |
7a292a7a | 2385 | return result; |
c906108c SS |
2386 | } |
2387 | ||
2388 | static char * | |
fba45db2 | 2389 | debug_to_pid_to_exec_file (int pid) |
c906108c | 2390 | { |
c5aa993b | 2391 | char *exec_file; |
c906108c SS |
2392 | |
2393 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
2394 | ||
96baa820 | 2395 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 2396 | pid, exec_file); |
c906108c SS |
2397 | |
2398 | return exec_file; | |
2399 | } | |
2400 | ||
c906108c | 2401 | static void |
fba45db2 | 2402 | setup_target_debug (void) |
c906108c SS |
2403 | { |
2404 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
2405 | ||
2406 | current_target.to_open = debug_to_open; | |
2407 | current_target.to_close = debug_to_close; | |
2408 | current_target.to_attach = debug_to_attach; | |
2409 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 2410 | current_target.to_detach = debug_to_detach; |
6ad8ae5c | 2411 | current_target.to_disconnect = debug_to_disconnect; |
c906108c SS |
2412 | current_target.to_resume = debug_to_resume; |
2413 | current_target.to_wait = debug_to_wait; | |
2414 | current_target.to_post_wait = debug_to_post_wait; | |
2415 | current_target.to_fetch_registers = debug_to_fetch_registers; | |
2416 | current_target.to_store_registers = debug_to_store_registers; | |
2417 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
2418 | current_target.to_xfer_memory = debug_to_xfer_memory; | |
2419 | current_target.to_files_info = debug_to_files_info; | |
2420 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
2421 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
2422 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
2423 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
2424 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
2425 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
2426 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
2427 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
2428 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
2429 | current_target.to_region_size_ok_for_hw_watchpoint = debug_to_region_size_ok_for_hw_watchpoint; | |
c906108c SS |
2430 | current_target.to_terminal_init = debug_to_terminal_init; |
2431 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
2432 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
2433 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 2434 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
2435 | current_target.to_terminal_info = debug_to_terminal_info; |
2436 | current_target.to_kill = debug_to_kill; | |
2437 | current_target.to_load = debug_to_load; | |
2438 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
2439 | current_target.to_create_inferior = debug_to_create_inferior; | |
2440 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
2441 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
2442 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
2443 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
2444 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
2445 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
6604731b | 2446 | current_target.to_follow_fork = debug_to_follow_fork; |
c906108c SS |
2447 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
2448 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 2449 | current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call; |
c906108c SS |
2450 | current_target.to_has_exited = debug_to_has_exited; |
2451 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
2452 | current_target.to_can_run = debug_to_can_run; | |
2453 | current_target.to_notice_signals = debug_to_notice_signals; | |
2454 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 2455 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 2456 | current_target.to_stop = debug_to_stop; |
1e3ff5ad AC |
2457 | current_target.to_read_partial = debug_to_read_partial; |
2458 | current_target.to_write_partial = debug_to_write_partial; | |
96baa820 | 2459 | current_target.to_rcmd = debug_to_rcmd; |
c906108c SS |
2460 | current_target.to_enable_exception_callback = debug_to_enable_exception_callback; |
2461 | current_target.to_get_current_exception_event = debug_to_get_current_exception_event; | |
2462 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; | |
c906108c SS |
2463 | |
2464 | } | |
c906108c | 2465 | \f |
c5aa993b JM |
2466 | |
2467 | static char targ_desc[] = | |
2468 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
2469 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
2470 | core-file, and process, if any), as well as the symbol file name."; | |
2471 | ||
96baa820 JM |
2472 | static void |
2473 | do_monitor_command (char *cmd, | |
2474 | int from_tty) | |
2475 | { | |
2b5fe715 AC |
2476 | if ((current_target.to_rcmd |
2477 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 2478 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
2479 | && (debug_target.to_rcmd |
2480 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
96baa820 JM |
2481 | { |
2482 | error ("\"monitor\" command not supported by this target.\n"); | |
2483 | } | |
2484 | target_rcmd (cmd, gdb_stdtarg); | |
2485 | } | |
2486 | ||
c906108c | 2487 | void |
fba45db2 | 2488 | initialize_targets (void) |
c906108c SS |
2489 | { |
2490 | init_dummy_target (); | |
2491 | push_target (&dummy_target); | |
2492 | ||
2493 | add_info ("target", target_info, targ_desc); | |
2494 | add_info ("files", target_info, targ_desc); | |
2495 | ||
3a11626d MS |
2496 | add_show_from_set |
2497 | (add_set_cmd ("target", class_maintenance, var_zinteger, | |
2498 | (char *) &targetdebug, | |
2499 | "Set target debugging.\n\ | |
5d161b24 | 2500 | When non-zero, target debugging is enabled.", &setdebuglist), |
3a11626d MS |
2501 | &showdebuglist); |
2502 | ||
e707bbc2 AC |
2503 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
2504 | &trust_readonly, "\ | |
2505 | Set mode for reading from readonly sections.\n\ | |
3a11626d MS |
2506 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
2507 | will be read from the object file instead of from the target. This will\n\ | |
e707bbc2 | 2508 | result in significant performance improvement for remote targets.", "\ |
c0e624e7 | 2509 | Show mode for reading from readonly sections.\n", |
e707bbc2 AC |
2510 | NULL, NULL, |
2511 | &setlist, &showlist); | |
96baa820 JM |
2512 | |
2513 | add_com ("monitor", class_obscure, do_monitor_command, | |
2514 | "Send a command to the remote monitor (remote targets only)."); | |
2515 | ||
8add0441 | 2516 | target_dcache = dcache_init (); |
c906108c | 2517 | } |