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, | |
c6f0559b | 4 | 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
7998dfc3 | 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_attach (char *, int); |
c906108c | 45 | |
a14ed312 | 46 | static void kill_or_be_killed (int); |
c906108c | 47 | |
a14ed312 | 48 | static void default_terminal_info (char *, int); |
c906108c | 49 | |
ccaa32c7 GS |
50 | static int default_region_size_ok_for_hw_watchpoint (int); |
51 | ||
a14ed312 | 52 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 53 | |
a14ed312 | 54 | static void tcomplain (void); |
c906108c | 55 | |
a14ed312 | 56 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 57 | |
a14ed312 | 58 | static int return_zero (void); |
c906108c | 59 | |
a14ed312 | 60 | static int return_one (void); |
c906108c | 61 | |
ccaa32c7 GS |
62 | static int return_minus_one (void); |
63 | ||
a14ed312 | 64 | void target_ignore (void); |
c906108c | 65 | |
a14ed312 | 66 | static void target_command (char *, int); |
c906108c | 67 | |
a14ed312 | 68 | static struct target_ops *find_default_run_target (char *); |
c906108c | 69 | |
a14ed312 | 70 | static void nosupport_runtime (void); |
392a587b | 71 | |
4b8a223f | 72 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 73 | enum target_object object, |
8aa91c1e AC |
74 | const char *annex, void *readbuf, |
75 | const void *writebuf, | |
76 | ULONGEST offset, LONGEST len); | |
0088c768 | 77 | |
917317f4 JM |
78 | /* Transfer LEN bytes between target address MEMADDR and GDB address |
79 | MYADDR. Returns 0 for success, errno code for failure (which | |
80 | includes partial transfers -- if you want a more useful response to | |
81 | partial transfers, try either target_read_memory_partial or | |
82 | target_write_memory_partial). */ | |
c906108c | 83 | |
570b8f7c AC |
84 | static int target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, |
85 | int write); | |
c906108c | 86 | |
a14ed312 | 87 | static void init_dummy_target (void); |
c906108c | 88 | |
a14ed312 | 89 | static void debug_to_open (char *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void debug_to_close (int); |
c906108c | 92 | |
a14ed312 | 93 | static void debug_to_attach (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void debug_to_detach (char *, int); |
c906108c | 96 | |
6ad8ae5c DJ |
97 | static void debug_to_disconnect (char *, int); |
98 | ||
39f77062 | 99 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 100 | |
39f77062 | 101 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 102 | |
a14ed312 | 103 | static void debug_to_fetch_registers (int); |
c906108c | 104 | |
a14ed312 | 105 | static void debug_to_store_registers (int); |
c906108c | 106 | |
a14ed312 | 107 | static void debug_to_prepare_to_store (void); |
c906108c | 108 | |
5ae5f592 AC |
109 | static int debug_to_xfer_memory (CORE_ADDR, char *, int, int, |
110 | struct mem_attrib *, struct target_ops *); | |
c906108c | 111 | |
a14ed312 | 112 | static void debug_to_files_info (struct target_ops *); |
c906108c | 113 | |
a14ed312 | 114 | static int debug_to_insert_breakpoint (CORE_ADDR, char *); |
c906108c | 115 | |
a14ed312 | 116 | static int debug_to_remove_breakpoint (CORE_ADDR, char *); |
c906108c | 117 | |
ccaa32c7 GS |
118 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
119 | ||
120 | static int debug_to_insert_hw_breakpoint (CORE_ADDR, char *); | |
121 | ||
122 | static int debug_to_remove_hw_breakpoint (CORE_ADDR, char *); | |
123 | ||
124 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
125 | ||
126 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
127 | ||
128 | static int debug_to_stopped_by_watchpoint (void); | |
129 | ||
130 | static CORE_ADDR debug_to_stopped_data_address (void); | |
131 | ||
132 | static int debug_to_region_size_ok_for_hw_watchpoint (int); | |
133 | ||
a14ed312 | 134 | static void debug_to_terminal_init (void); |
c906108c | 135 | |
a14ed312 | 136 | static void debug_to_terminal_inferior (void); |
c906108c | 137 | |
a14ed312 | 138 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 139 | |
a790ad35 SC |
140 | static void debug_to_terminal_save_ours (void); |
141 | ||
a14ed312 | 142 | static void debug_to_terminal_ours (void); |
c906108c | 143 | |
a14ed312 | 144 | static void debug_to_terminal_info (char *, int); |
c906108c | 145 | |
a14ed312 | 146 | static void debug_to_kill (void); |
c906108c | 147 | |
a14ed312 | 148 | static void debug_to_load (char *, int); |
c906108c | 149 | |
a14ed312 | 150 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 151 | |
a14ed312 | 152 | static void debug_to_mourn_inferior (void); |
c906108c | 153 | |
a14ed312 | 154 | static int debug_to_can_run (void); |
c906108c | 155 | |
39f77062 | 156 | static void debug_to_notice_signals (ptid_t); |
c906108c | 157 | |
39f77062 | 158 | static int debug_to_thread_alive (ptid_t); |
c906108c | 159 | |
a14ed312 | 160 | static void debug_to_stop (void); |
c906108c | 161 | |
5ac10fd1 AC |
162 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
163 | wierd and mysterious ways. Putting the variable here lets those | |
164 | wierd and mysterious ways keep building while they are being | |
165 | converted to the inferior inheritance structure. */ | |
166 | struct target_ops child_ops; | |
167 | ||
c906108c SS |
168 | /* Pointer to array of target architecture structures; the size of the |
169 | array; the current index into the array; the allocated size of the | |
170 | array. */ | |
171 | struct target_ops **target_structs; | |
172 | unsigned target_struct_size; | |
173 | unsigned target_struct_index; | |
174 | unsigned target_struct_allocsize; | |
175 | #define DEFAULT_ALLOCSIZE 10 | |
176 | ||
177 | /* The initial current target, so that there is always a semi-valid | |
178 | current target. */ | |
179 | ||
180 | static struct target_ops dummy_target; | |
181 | ||
182 | /* Top of target stack. */ | |
183 | ||
258b763a | 184 | static struct target_ops *target_stack; |
c906108c SS |
185 | |
186 | /* The target structure we are currently using to talk to a process | |
187 | or file or whatever "inferior" we have. */ | |
188 | ||
189 | struct target_ops current_target; | |
190 | ||
191 | /* Command list for target. */ | |
192 | ||
193 | static struct cmd_list_element *targetlist = NULL; | |
194 | ||
195 | /* Nonzero if we are debugging an attached outside process | |
196 | rather than an inferior. */ | |
197 | ||
198 | int attach_flag; | |
199 | ||
c906108c SS |
200 | /* Non-zero if we want to see trace of target level stuff. */ |
201 | ||
202 | static int targetdebug = 0; | |
203 | ||
a14ed312 | 204 | static void setup_target_debug (void); |
c906108c | 205 | |
4930751a C |
206 | DCACHE *target_dcache; |
207 | ||
c906108c SS |
208 | /* The user just typed 'target' without the name of a target. */ |
209 | ||
c906108c | 210 | static void |
fba45db2 | 211 | target_command (char *arg, int from_tty) |
c906108c SS |
212 | { |
213 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
214 | gdb_stdout); | |
215 | } | |
216 | ||
217 | /* Add a possible target architecture to the list. */ | |
218 | ||
219 | void | |
fba45db2 | 220 | add_target (struct target_ops *t) |
c906108c | 221 | { |
0088c768 | 222 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
223 | if (t->to_xfer_partial == NULL) |
224 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 225 | |
c906108c SS |
226 | if (!target_structs) |
227 | { | |
228 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
229 | target_structs = (struct target_ops **) xmalloc | |
230 | (target_struct_allocsize * sizeof (*target_structs)); | |
231 | } | |
232 | if (target_struct_size >= target_struct_allocsize) | |
233 | { | |
234 | target_struct_allocsize *= 2; | |
235 | target_structs = (struct target_ops **) | |
c5aa993b JM |
236 | xrealloc ((char *) target_structs, |
237 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
238 | } |
239 | target_structs[target_struct_size++] = t; | |
c906108c SS |
240 | |
241 | if (targetlist == NULL) | |
242 | add_prefix_cmd ("target", class_run, target_command, | |
243 | "Connect to a target machine or process.\n\ | |
244 | The first argument is the type or protocol of the target machine.\n\ | |
245 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
246 | information on the arguments for a particular protocol, type\n\ | |
247 | `help target ' followed by the protocol name.", | |
248 | &targetlist, "target ", 0, &cmdlist); | |
249 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
250 | } | |
251 | ||
252 | /* Stub functions */ | |
253 | ||
254 | void | |
fba45db2 | 255 | target_ignore (void) |
c906108c SS |
256 | { |
257 | } | |
258 | ||
11cf8741 JM |
259 | void |
260 | target_load (char *arg, int from_tty) | |
261 | { | |
4930751a | 262 | dcache_invalidate (target_dcache); |
11cf8741 JM |
263 | (*current_target.to_load) (arg, from_tty); |
264 | } | |
265 | ||
c906108c | 266 | static int |
fba45db2 KB |
267 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
268 | struct target_ops *t) | |
c906108c | 269 | { |
c5aa993b JM |
270 | errno = EIO; /* Can't read/write this location */ |
271 | return 0; /* No bytes handled */ | |
c906108c SS |
272 | } |
273 | ||
274 | static void | |
fba45db2 | 275 | tcomplain (void) |
c906108c SS |
276 | { |
277 | error ("You can't do that when your target is `%s'", | |
278 | current_target.to_shortname); | |
279 | } | |
280 | ||
281 | void | |
fba45db2 | 282 | noprocess (void) |
c906108c SS |
283 | { |
284 | error ("You can't do that without a process to debug."); | |
285 | } | |
286 | ||
c906108c | 287 | static int |
fba45db2 | 288 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 289 | { |
c5aa993b | 290 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
291 | } |
292 | ||
392a587b | 293 | static void |
fba45db2 | 294 | nosupport_runtime (void) |
c906108c | 295 | { |
39f77062 | 296 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
297 | noprocess (); |
298 | else | |
299 | error ("No run-time support for this"); | |
300 | } | |
301 | ||
302 | ||
c906108c | 303 | static void |
fba45db2 | 304 | default_terminal_info (char *args, int from_tty) |
c906108c | 305 | { |
c5aa993b | 306 | printf_unfiltered ("No saved terminal information.\n"); |
c906108c SS |
307 | } |
308 | ||
309 | /* This is the default target_create_inferior and target_attach function. | |
310 | If the current target is executing, it asks whether to kill it off. | |
311 | If this function returns without calling error(), it has killed off | |
312 | the target, and the operation should be attempted. */ | |
313 | ||
314 | static void | |
fba45db2 | 315 | kill_or_be_killed (int from_tty) |
c906108c SS |
316 | { |
317 | if (target_has_execution) | |
318 | { | |
319 | printf_unfiltered ("You are already running a program:\n"); | |
320 | target_files_info (); | |
c5aa993b JM |
321 | if (query ("Kill it? ")) |
322 | { | |
323 | target_kill (); | |
324 | if (target_has_execution) | |
325 | error ("Killing the program did not help."); | |
326 | return; | |
327 | } | |
328 | else | |
329 | { | |
330 | error ("Program not killed."); | |
331 | } | |
c906108c | 332 | } |
c5aa993b | 333 | tcomplain (); |
c906108c SS |
334 | } |
335 | ||
336 | static void | |
fba45db2 | 337 | maybe_kill_then_attach (char *args, int from_tty) |
c906108c SS |
338 | { |
339 | kill_or_be_killed (from_tty); | |
340 | target_attach (args, from_tty); | |
341 | } | |
342 | ||
343 | static void | |
c27cda74 AC |
344 | maybe_kill_then_create_inferior (char *exec, char *args, char **env, |
345 | int from_tty) | |
c906108c SS |
346 | { |
347 | kill_or_be_killed (0); | |
c27cda74 | 348 | target_create_inferior (exec, args, env, from_tty); |
c906108c SS |
349 | } |
350 | ||
7998dfc3 AC |
351 | /* Go through the target stack from top to bottom, copying over zero |
352 | entries in current_target, then filling in still empty entries. In | |
353 | effect, we are doing class inheritance through the pushed target | |
354 | vectors. | |
355 | ||
356 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
357 | is currently implemented, is that it discards any knowledge of | |
358 | which target an inherited method originally belonged to. | |
359 | Consequently, new new target methods should instead explicitly and | |
360 | locally search the target stack for the target that can handle the | |
361 | request. */ | |
c906108c SS |
362 | |
363 | static void | |
7998dfc3 | 364 | update_current_target (void) |
c906108c | 365 | { |
7998dfc3 AC |
366 | struct target_ops *t; |
367 | ||
368 | /* First, reset curren'ts contents. */ | |
369 | memset (¤t_target, 0, sizeof (current_target)); | |
370 | ||
371 | #define INHERIT(FIELD, TARGET) \ | |
372 | if (!current_target.FIELD) \ | |
373 | current_target.FIELD = (TARGET)->FIELD | |
374 | ||
375 | for (t = target_stack; t; t = t->beneath) | |
376 | { | |
377 | INHERIT (to_shortname, t); | |
378 | INHERIT (to_longname, t); | |
379 | INHERIT (to_doc, t); | |
380 | INHERIT (to_open, t); | |
381 | INHERIT (to_close, t); | |
382 | INHERIT (to_attach, t); | |
383 | INHERIT (to_post_attach, t); | |
384 | INHERIT (to_detach, t); | |
385 | INHERIT (to_disconnect, t); | |
386 | INHERIT (to_resume, t); | |
387 | INHERIT (to_wait, t); | |
7998dfc3 AC |
388 | INHERIT (to_fetch_registers, t); |
389 | INHERIT (to_store_registers, t); | |
390 | INHERIT (to_prepare_to_store, t); | |
391 | INHERIT (to_xfer_memory, t); | |
392 | INHERIT (to_files_info, t); | |
393 | INHERIT (to_insert_breakpoint, t); | |
394 | INHERIT (to_remove_breakpoint, t); | |
395 | INHERIT (to_can_use_hw_breakpoint, t); | |
396 | INHERIT (to_insert_hw_breakpoint, t); | |
397 | INHERIT (to_remove_hw_breakpoint, t); | |
398 | INHERIT (to_insert_watchpoint, t); | |
399 | INHERIT (to_remove_watchpoint, t); | |
400 | INHERIT (to_stopped_data_address, t); | |
401 | INHERIT (to_stopped_by_watchpoint, t); | |
402 | INHERIT (to_have_continuable_watchpoint, t); | |
403 | INHERIT (to_region_size_ok_for_hw_watchpoint, t); | |
404 | INHERIT (to_terminal_init, t); | |
405 | INHERIT (to_terminal_inferior, t); | |
406 | INHERIT (to_terminal_ours_for_output, t); | |
407 | INHERIT (to_terminal_ours, t); | |
408 | INHERIT (to_terminal_save_ours, t); | |
409 | INHERIT (to_terminal_info, t); | |
410 | INHERIT (to_kill, t); | |
411 | INHERIT (to_load, t); | |
412 | INHERIT (to_lookup_symbol, t); | |
413 | INHERIT (to_create_inferior, t); | |
414 | INHERIT (to_post_startup_inferior, t); | |
415 | INHERIT (to_acknowledge_created_inferior, t); | |
416 | INHERIT (to_insert_fork_catchpoint, t); | |
417 | INHERIT (to_remove_fork_catchpoint, t); | |
418 | INHERIT (to_insert_vfork_catchpoint, t); | |
419 | INHERIT (to_remove_vfork_catchpoint, t); | |
420 | INHERIT (to_follow_fork, t); | |
421 | INHERIT (to_insert_exec_catchpoint, t); | |
422 | INHERIT (to_remove_exec_catchpoint, t); | |
423 | INHERIT (to_reported_exec_events_per_exec_call, t); | |
424 | INHERIT (to_has_exited, t); | |
425 | INHERIT (to_mourn_inferior, t); | |
426 | INHERIT (to_can_run, t); | |
427 | INHERIT (to_notice_signals, t); | |
428 | INHERIT (to_thread_alive, t); | |
429 | INHERIT (to_find_new_threads, t); | |
430 | INHERIT (to_pid_to_str, t); | |
431 | INHERIT (to_extra_thread_info, t); | |
432 | INHERIT (to_stop, t); | |
4b8a223f | 433 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 AC |
434 | INHERIT (to_rcmd, t); |
435 | INHERIT (to_enable_exception_callback, t); | |
436 | INHERIT (to_get_current_exception_event, t); | |
437 | INHERIT (to_pid_to_exec_file, t); | |
438 | INHERIT (to_stratum, t); | |
439 | INHERIT (to_has_all_memory, t); | |
440 | INHERIT (to_has_memory, t); | |
441 | INHERIT (to_has_stack, t); | |
442 | INHERIT (to_has_registers, t); | |
443 | INHERIT (to_has_execution, t); | |
444 | INHERIT (to_has_thread_control, t); | |
445 | INHERIT (to_sections, t); | |
446 | INHERIT (to_sections_end, t); | |
447 | INHERIT (to_can_async_p, t); | |
448 | INHERIT (to_is_async_p, t); | |
449 | INHERIT (to_async, t); | |
450 | INHERIT (to_async_mask_value, t); | |
451 | INHERIT (to_find_memory_regions, t); | |
452 | INHERIT (to_make_corefile_notes, t); | |
453 | INHERIT (to_get_thread_local_address, t); | |
454 | INHERIT (to_magic, t); | |
455 | } | |
456 | #undef INHERIT | |
457 | ||
458 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
459 | it. Some entries are defaulted to a method that print an error, |
460 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
461 | |
462 | #define de_fault(field, value) \ | |
7998dfc3 AC |
463 | if (!current_target.field) \ |
464 | current_target.field = value | |
0d06e24b JM |
465 | |
466 | de_fault (to_open, | |
467 | (void (*) (char *, int)) | |
468 | tcomplain); | |
469 | de_fault (to_close, | |
470 | (void (*) (int)) | |
471 | target_ignore); | |
472 | de_fault (to_attach, | |
473 | maybe_kill_then_attach); | |
474 | de_fault (to_post_attach, | |
475 | (void (*) (int)) | |
476 | target_ignore); | |
0d06e24b JM |
477 | de_fault (to_detach, |
478 | (void (*) (char *, int)) | |
479 | target_ignore); | |
6ad8ae5c DJ |
480 | de_fault (to_disconnect, |
481 | (void (*) (char *, int)) | |
482 | tcomplain); | |
0d06e24b | 483 | de_fault (to_resume, |
39f77062 | 484 | (void (*) (ptid_t, int, enum target_signal)) |
0d06e24b JM |
485 | noprocess); |
486 | de_fault (to_wait, | |
39f77062 | 487 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) |
0d06e24b | 488 | noprocess); |
0d06e24b JM |
489 | de_fault (to_fetch_registers, |
490 | (void (*) (int)) | |
491 | target_ignore); | |
492 | de_fault (to_store_registers, | |
493 | (void (*) (int)) | |
494 | noprocess); | |
495 | de_fault (to_prepare_to_store, | |
496 | (void (*) (void)) | |
497 | noprocess); | |
498 | de_fault (to_xfer_memory, | |
29e57380 | 499 | (int (*) (CORE_ADDR, char *, int, int, struct mem_attrib *, struct target_ops *)) |
0d06e24b JM |
500 | nomemory); |
501 | de_fault (to_files_info, | |
502 | (void (*) (struct target_ops *)) | |
503 | target_ignore); | |
504 | de_fault (to_insert_breakpoint, | |
505 | memory_insert_breakpoint); | |
506 | de_fault (to_remove_breakpoint, | |
507 | memory_remove_breakpoint); | |
ccaa32c7 GS |
508 | de_fault (to_can_use_hw_breakpoint, |
509 | (int (*) (int, int, int)) | |
510 | return_zero); | |
511 | de_fault (to_insert_hw_breakpoint, | |
512 | (int (*) (CORE_ADDR, char *)) | |
513 | return_minus_one); | |
514 | de_fault (to_remove_hw_breakpoint, | |
515 | (int (*) (CORE_ADDR, char *)) | |
516 | return_minus_one); | |
517 | de_fault (to_insert_watchpoint, | |
518 | (int (*) (CORE_ADDR, int, int)) | |
519 | return_minus_one); | |
520 | de_fault (to_remove_watchpoint, | |
521 | (int (*) (CORE_ADDR, int, int)) | |
522 | return_minus_one); | |
523 | de_fault (to_stopped_by_watchpoint, | |
524 | (int (*) (void)) | |
525 | return_zero); | |
526 | de_fault (to_stopped_data_address, | |
527 | (CORE_ADDR (*) (void)) | |
528 | return_zero); | |
529 | de_fault (to_region_size_ok_for_hw_watchpoint, | |
530 | default_region_size_ok_for_hw_watchpoint); | |
0d06e24b JM |
531 | de_fault (to_terminal_init, |
532 | (void (*) (void)) | |
533 | target_ignore); | |
534 | de_fault (to_terminal_inferior, | |
535 | (void (*) (void)) | |
536 | target_ignore); | |
537 | de_fault (to_terminal_ours_for_output, | |
538 | (void (*) (void)) | |
539 | target_ignore); | |
540 | de_fault (to_terminal_ours, | |
541 | (void (*) (void)) | |
542 | target_ignore); | |
a790ad35 SC |
543 | de_fault (to_terminal_save_ours, |
544 | (void (*) (void)) | |
545 | target_ignore); | |
0d06e24b JM |
546 | de_fault (to_terminal_info, |
547 | default_terminal_info); | |
548 | de_fault (to_kill, | |
549 | (void (*) (void)) | |
550 | noprocess); | |
551 | de_fault (to_load, | |
552 | (void (*) (char *, int)) | |
553 | tcomplain); | |
554 | de_fault (to_lookup_symbol, | |
555 | (int (*) (char *, CORE_ADDR *)) | |
556 | nosymbol); | |
557 | de_fault (to_create_inferior, | |
558 | maybe_kill_then_create_inferior); | |
559 | de_fault (to_post_startup_inferior, | |
39f77062 | 560 | (void (*) (ptid_t)) |
0d06e24b JM |
561 | target_ignore); |
562 | de_fault (to_acknowledge_created_inferior, | |
563 | (void (*) (int)) | |
564 | target_ignore); | |
0d06e24b JM |
565 | de_fault (to_insert_fork_catchpoint, |
566 | (int (*) (int)) | |
567 | tcomplain); | |
568 | de_fault (to_remove_fork_catchpoint, | |
569 | (int (*) (int)) | |
570 | tcomplain); | |
571 | de_fault (to_insert_vfork_catchpoint, | |
572 | (int (*) (int)) | |
573 | tcomplain); | |
574 | de_fault (to_remove_vfork_catchpoint, | |
575 | (int (*) (int)) | |
576 | tcomplain); | |
4c9ba7e0 | 577 | de_fault (to_follow_fork, |
6604731b | 578 | (int (*) (int)) |
0d06e24b JM |
579 | target_ignore); |
580 | de_fault (to_insert_exec_catchpoint, | |
581 | (int (*) (int)) | |
582 | tcomplain); | |
583 | de_fault (to_remove_exec_catchpoint, | |
584 | (int (*) (int)) | |
585 | tcomplain); | |
0d06e24b JM |
586 | de_fault (to_reported_exec_events_per_exec_call, |
587 | (int (*) (void)) | |
588 | return_one); | |
0d06e24b JM |
589 | de_fault (to_has_exited, |
590 | (int (*) (int, int, int *)) | |
591 | return_zero); | |
592 | de_fault (to_mourn_inferior, | |
593 | (void (*) (void)) | |
594 | noprocess); | |
595 | de_fault (to_can_run, | |
596 | return_zero); | |
597 | de_fault (to_notice_signals, | |
39f77062 | 598 | (void (*) (ptid_t)) |
0d06e24b JM |
599 | target_ignore); |
600 | de_fault (to_thread_alive, | |
39f77062 | 601 | (int (*) (ptid_t)) |
0d06e24b JM |
602 | return_zero); |
603 | de_fault (to_find_new_threads, | |
604 | (void (*) (void)) | |
605 | target_ignore); | |
606 | de_fault (to_extra_thread_info, | |
607 | (char *(*) (struct thread_info *)) | |
608 | return_zero); | |
609 | de_fault (to_stop, | |
610 | (void (*) (void)) | |
611 | target_ignore); | |
4b8a223f | 612 | current_target.to_xfer_partial = default_xfer_partial; |
0d06e24b | 613 | de_fault (to_rcmd, |
d9fcf2fb | 614 | (void (*) (char *, struct ui_file *)) |
0d06e24b JM |
615 | tcomplain); |
616 | de_fault (to_enable_exception_callback, | |
617 | (struct symtab_and_line * (*) (enum exception_event_kind, int)) | |
618 | nosupport_runtime); | |
619 | de_fault (to_get_current_exception_event, | |
620 | (struct exception_event_record * (*) (void)) | |
621 | nosupport_runtime); | |
622 | de_fault (to_pid_to_exec_file, | |
623 | (char *(*) (int)) | |
624 | return_zero); | |
0d06e24b JM |
625 | de_fault (to_can_async_p, |
626 | (int (*) (void)) | |
627 | return_zero); | |
628 | de_fault (to_is_async_p, | |
629 | (int (*) (void)) | |
630 | return_zero); | |
631 | de_fault (to_async, | |
632 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
633 | tcomplain); | |
c906108c | 634 | #undef de_fault |
c906108c | 635 | |
7998dfc3 AC |
636 | /* Finally, position the target-stack beneath the squashed |
637 | "current_target". That way code looking for a non-inherited | |
638 | target method can quickly and simply find it. */ | |
639 | current_target.beneath = target_stack; | |
c906108c SS |
640 | } |
641 | ||
642 | /* Push a new target type into the stack of the existing target accessors, | |
643 | possibly superseding some of the existing accessors. | |
644 | ||
645 | Result is zero if the pushed target ended up on top of the stack, | |
646 | nonzero if at least one target is on top of it. | |
647 | ||
648 | Rather than allow an empty stack, we always have the dummy target at | |
649 | the bottom stratum, so we can call the function vectors without | |
650 | checking them. */ | |
651 | ||
652 | int | |
fba45db2 | 653 | push_target (struct target_ops *t) |
c906108c | 654 | { |
258b763a | 655 | struct target_ops **cur; |
c906108c SS |
656 | |
657 | /* Check magic number. If wrong, it probably means someone changed | |
658 | the struct definition, but not all the places that initialize one. */ | |
659 | if (t->to_magic != OPS_MAGIC) | |
660 | { | |
c5aa993b JM |
661 | fprintf_unfiltered (gdb_stderr, |
662 | "Magic number of %s target struct wrong\n", | |
663 | t->to_shortname); | |
e1e9e218 | 664 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
665 | } |
666 | ||
258b763a AC |
667 | /* Find the proper stratum to install this target in. */ |
668 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 669 | { |
258b763a | 670 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
671 | break; |
672 | } | |
673 | ||
258b763a AC |
674 | /* If there's already targets at this stratum, remove them. */ |
675 | /* FIXME: cagney/2003-10-15: I think this should be poping all | |
676 | targets to CUR, and not just those at this stratum level. */ | |
677 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
678 | { | |
679 | /* There's already something at this stratum level. Close it, | |
680 | and un-hook it from the stack. */ | |
681 | struct target_ops *tmp = (*cur); | |
682 | (*cur) = (*cur)->beneath; | |
683 | tmp->beneath = NULL; | |
f1c07ab0 | 684 | target_close (tmp, 0); |
258b763a | 685 | } |
c906108c SS |
686 | |
687 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
688 | t->beneath = (*cur); |
689 | (*cur) = t; | |
c906108c SS |
690 | |
691 | update_current_target (); | |
692 | ||
c906108c SS |
693 | if (targetdebug) |
694 | setup_target_debug (); | |
c906108c | 695 | |
258b763a AC |
696 | /* Not on top? */ |
697 | return (t != target_stack); | |
c906108c SS |
698 | } |
699 | ||
700 | /* Remove a target_ops vector from the stack, wherever it may be. | |
701 | Return how many times it was removed (0 or 1). */ | |
702 | ||
703 | int | |
fba45db2 | 704 | unpush_target (struct target_ops *t) |
c906108c | 705 | { |
258b763a AC |
706 | struct target_ops **cur; |
707 | struct target_ops *tmp; | |
c906108c | 708 | |
c906108c SS |
709 | /* Look for the specified target. Note that we assume that a target |
710 | can only occur once in the target stack. */ | |
711 | ||
258b763a AC |
712 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
713 | { | |
714 | if ((*cur) == t) | |
715 | break; | |
716 | } | |
c906108c | 717 | |
258b763a | 718 | if ((*cur) == NULL) |
c906108c SS |
719 | return 0; /* Didn't find target_ops, quit now */ |
720 | ||
5269965e AC |
721 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
722 | unconditional by moving it to before the above check that the | |
723 | target was in the target stack (something about "Change the way | |
724 | pushing and popping of targets work to support target overlays | |
725 | and inheritance"). This doesn't make much sense - only open | |
726 | targets should be closed. */ | |
727 | target_close (t, 0); | |
728 | ||
c906108c | 729 | /* Unchain the target */ |
258b763a AC |
730 | tmp = (*cur); |
731 | (*cur) = (*cur)->beneath; | |
732 | tmp->beneath = NULL; | |
c906108c SS |
733 | |
734 | update_current_target (); | |
c906108c SS |
735 | |
736 | return 1; | |
737 | } | |
738 | ||
739 | void | |
fba45db2 | 740 | pop_target (void) |
c906108c | 741 | { |
f1c07ab0 | 742 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 743 | if (unpush_target (target_stack) == 1) |
c906108c SS |
744 | return; |
745 | ||
c5aa993b JM |
746 | fprintf_unfiltered (gdb_stderr, |
747 | "pop_target couldn't find target %s\n", | |
748 | current_target.to_shortname); | |
e1e9e218 | 749 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
750 | } |
751 | ||
752 | #undef MIN | |
753 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
754 | ||
755 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
756 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
757 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
758 | is responsible for freeing it. Return the number of bytes successfully | |
759 | read. */ | |
760 | ||
761 | int | |
fba45db2 | 762 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
763 | { |
764 | int tlen, origlen, offset, i; | |
765 | char buf[4]; | |
766 | int errcode = 0; | |
767 | char *buffer; | |
768 | int buffer_allocated; | |
769 | char *bufptr; | |
770 | unsigned int nbytes_read = 0; | |
771 | ||
772 | /* Small for testing. */ | |
773 | buffer_allocated = 4; | |
774 | buffer = xmalloc (buffer_allocated); | |
775 | bufptr = buffer; | |
776 | ||
777 | origlen = len; | |
778 | ||
779 | while (len > 0) | |
780 | { | |
781 | tlen = MIN (len, 4 - (memaddr & 3)); | |
782 | offset = memaddr & 3; | |
783 | ||
b8eb5af0 | 784 | errcode = target_read_memory (memaddr & ~3, buf, 4); |
c906108c SS |
785 | if (errcode != 0) |
786 | { | |
787 | /* The transfer request might have crossed the boundary to an | |
788 | unallocated region of memory. Retry the transfer, requesting | |
789 | a single byte. */ | |
790 | tlen = 1; | |
791 | offset = 0; | |
b8eb5af0 | 792 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
793 | if (errcode != 0) |
794 | goto done; | |
795 | } | |
796 | ||
797 | if (bufptr - buffer + tlen > buffer_allocated) | |
798 | { | |
799 | unsigned int bytes; | |
800 | bytes = bufptr - buffer; | |
801 | buffer_allocated *= 2; | |
802 | buffer = xrealloc (buffer, buffer_allocated); | |
803 | bufptr = buffer + bytes; | |
804 | } | |
805 | ||
806 | for (i = 0; i < tlen; i++) | |
807 | { | |
808 | *bufptr++ = buf[i + offset]; | |
809 | if (buf[i + offset] == '\000') | |
810 | { | |
811 | nbytes_read += i + 1; | |
812 | goto done; | |
813 | } | |
814 | } | |
815 | ||
816 | memaddr += tlen; | |
817 | len -= tlen; | |
818 | nbytes_read += tlen; | |
819 | } | |
c5aa993b | 820 | done: |
c906108c SS |
821 | if (errnop != NULL) |
822 | *errnop = errcode; | |
823 | if (string != NULL) | |
824 | *string = buffer; | |
825 | return nbytes_read; | |
826 | } | |
827 | ||
8db32d44 AC |
828 | /* Find a section containing ADDR. */ |
829 | struct section_table * | |
830 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
831 | { | |
832 | struct section_table *secp; | |
833 | for (secp = target->to_sections; | |
834 | secp < target->to_sections_end; | |
835 | secp++) | |
836 | { | |
837 | if (addr >= secp->addr && addr < secp->endaddr) | |
838 | return secp; | |
839 | } | |
840 | return NULL; | |
841 | } | |
842 | ||
0779438d AC |
843 | /* Return non-zero when the target vector has supplied an xfer_partial |
844 | method and it, rather than xfer_memory, should be used. */ | |
845 | static int | |
846 | target_xfer_partial_p (void) | |
847 | { | |
848 | return (target_stack != NULL | |
849 | && target_stack->to_xfer_partial != default_xfer_partial); | |
850 | } | |
851 | ||
27394598 AC |
852 | static LONGEST |
853 | target_xfer_partial (struct target_ops *ops, | |
854 | enum target_object object, const char *annex, | |
855 | void *readbuf, const void *writebuf, | |
856 | ULONGEST offset, LONGEST len) | |
857 | { | |
858 | LONGEST retval; | |
859 | ||
860 | gdb_assert (ops->to_xfer_partial != NULL); | |
861 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, writebuf, | |
862 | offset, len); | |
863 | if (targetdebug) | |
864 | { | |
865 | const unsigned char *myaddr = NULL; | |
866 | ||
867 | fprintf_unfiltered (gdb_stdlog, | |
868 | "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s", | |
869 | ops->to_shortname, | |
870 | (int) object, | |
871 | (annex ? annex : "(null)"), | |
872 | (long) readbuf, (long) writebuf, | |
873 | paddr_nz (offset), paddr_d (len), paddr_d (retval)); | |
874 | ||
875 | if (readbuf) | |
876 | myaddr = readbuf; | |
877 | if (writebuf) | |
878 | myaddr = writebuf; | |
879 | if (retval > 0 && myaddr != NULL) | |
880 | { | |
881 | int i; | |
882 | ||
883 | fputs_unfiltered (", bytes =", gdb_stdlog); | |
884 | for (i = 0; i < retval; i++) | |
885 | { | |
886 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
887 | { | |
888 | if (targetdebug < 2 && i > 0) | |
889 | { | |
890 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
891 | break; | |
892 | } | |
893 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
894 | } | |
895 | ||
896 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); | |
897 | } | |
898 | } | |
899 | ||
900 | fputc_unfiltered ('\n', gdb_stdlog); | |
901 | } | |
902 | return retval; | |
903 | } | |
904 | ||
0779438d AC |
905 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
906 | inferior's KIND:ANNEX space and GDB's READBUF/WRITEBUF buffer. If | |
907 | the transfer succeeds, return zero, otherwize the host ERRNO is | |
908 | returned. | |
909 | ||
910 | The inferior is formed from several layers. In the case of | |
911 | corefiles, inf-corefile is layered above inf-exec and a request for | |
912 | text (corefiles do not include text pages) will be first sent to | |
913 | the core-stratum, fail, and then sent to the object-file where it | |
914 | will succeed. | |
915 | ||
916 | NOTE: cagney/2004-09-30: | |
917 | ||
918 | The old code tried to use four separate mechanisms for mapping an | |
919 | object:offset:len tuple onto an inferior and its address space: the | |
920 | target stack; the inferior's TO_SECTIONS; solib's SO_LIST; | |
921 | overlays. | |
922 | ||
923 | This is stupid. | |
924 | ||
925 | The code below is instead using a single mechanism (currently | |
926 | strata). If that mechanism proves insufficient then re-factor it | |
927 | implementing another singluar mechanism (for instance, a generic | |
928 | object:annex onto inferior:object:annex say). */ | |
929 | ||
930 | static int | |
931 | xfer_using_stratum (enum target_object object, const char *annex, | |
932 | CORE_ADDR memaddr, int len, void *readbuf, | |
933 | const void *writebuf) | |
934 | { | |
935 | LONGEST xfered; | |
936 | struct target_ops *target; | |
937 | ||
938 | /* Always successful. */ | |
939 | if (len == 0) | |
940 | return 0; | |
941 | /* Never successful. */ | |
942 | if (target_stack == NULL) | |
943 | return EIO; | |
944 | ||
945 | target = target_stack; | |
946 | while (1) | |
947 | { | |
27394598 AC |
948 | xfered = target_xfer_partial (target, object, annex, |
949 | readbuf, writebuf, memaddr, len); | |
0779438d AC |
950 | if (xfered > 0) |
951 | { | |
952 | /* The partial xfer succeeded, update the counts, check that | |
953 | the xfer hasn't finished and if it hasn't set things up | |
954 | for the next round. */ | |
955 | len -= xfered; | |
956 | if (len <= 0) | |
957 | return 0; | |
958 | target = target_stack; | |
959 | } | |
960 | else if (xfered < 0) | |
961 | { | |
962 | /* Something totally screwed up, abandon the attempt to | |
963 | xfer. */ | |
964 | if (errno) | |
965 | return errno; | |
966 | else | |
967 | return EIO; | |
968 | } | |
969 | else | |
970 | { | |
971 | /* This "stratum" didn't work, try the next one down. */ | |
972 | target = target->beneath; | |
973 | if (target == NULL) | |
974 | return EIO; | |
975 | } | |
976 | } | |
977 | } | |
978 | ||
c906108c SS |
979 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
980 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
981 | if any error occurs. | |
982 | ||
983 | If an error occurs, no guarantee is made about the contents of the data at | |
984 | MYADDR. In particular, the caller should not depend upon partial reads | |
985 | filling the buffer with good data. There is no way for the caller to know | |
986 | how much good data might have been transfered anyway. Callers that can | |
987 | deal with partial reads should call target_read_memory_partial. */ | |
988 | ||
989 | int | |
fba45db2 | 990 | target_read_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 991 | { |
0779438d AC |
992 | if (target_xfer_partial_p ()) |
993 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
994 | memaddr, len, myaddr, NULL); | |
995 | else | |
996 | return target_xfer_memory (memaddr, myaddr, len, 0); | |
c906108c SS |
997 | } |
998 | ||
c906108c | 999 | int |
fba45db2 | 1000 | target_write_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1001 | { |
0779438d AC |
1002 | if (target_xfer_partial_p ()) |
1003 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
1004 | memaddr, len, NULL, myaddr); | |
1005 | else | |
1006 | return target_xfer_memory (memaddr, myaddr, len, 1); | |
c906108c | 1007 | } |
c5aa993b | 1008 | |
3a11626d MS |
1009 | static int trust_readonly = 0; |
1010 | ||
67e0617e C |
1011 | /* Move memory to or from the targets. The top target gets priority; |
1012 | if it cannot handle it, it is offered to the next one down, etc. | |
c906108c | 1013 | |
67e0617e | 1014 | Result is -1 on error, or the number of bytes transfered. */ |
c906108c | 1015 | |
4930751a | 1016 | int |
29e57380 C |
1017 | do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
1018 | struct mem_attrib *attrib) | |
c906108c | 1019 | { |
c906108c | 1020 | int res; |
4930751a | 1021 | int done = 0; |
c906108c | 1022 | struct target_ops *t; |
c906108c SS |
1023 | |
1024 | /* Zero length requests are ok and require no work. */ | |
1025 | if (len == 0) | |
1026 | return 0; | |
1027 | ||
c906108c SS |
1028 | /* to_xfer_memory is not guaranteed to set errno, even when it returns |
1029 | 0. */ | |
1030 | errno = 0; | |
1031 | ||
3a11626d MS |
1032 | if (!write && trust_readonly) |
1033 | { | |
8db32d44 | 1034 | struct section_table *secp; |
2ceb85d0 BE |
1035 | /* User-settable option, "trust-readonly-sections". If true, |
1036 | then memory from any SEC_READONLY bfd section may be read | |
8db32d44 AC |
1037 | directly from the bfd file. */ |
1038 | secp = target_section_by_addr (¤t_target, memaddr); | |
1039 | if (secp != NULL | |
1040 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1041 | & SEC_READONLY)) | |
1042 | return xfer_memory (memaddr, myaddr, len, 0, attrib, ¤t_target); | |
3a11626d MS |
1043 | } |
1044 | ||
67e0617e | 1045 | /* The quick case is that the top target can handle the transfer. */ |
c906108c | 1046 | res = current_target.to_xfer_memory |
29e57380 | 1047 | (memaddr, myaddr, len, write, attrib, ¤t_target); |
c906108c | 1048 | |
67e0617e C |
1049 | /* If res <= 0 then we call it again in the loop. Ah well. */ |
1050 | if (res <= 0) | |
c906108c | 1051 | { |
258b763a | 1052 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1053 | { |
c906108c SS |
1054 | if (!t->to_has_memory) |
1055 | continue; | |
1056 | ||
29e57380 | 1057 | res = t->to_xfer_memory (memaddr, myaddr, len, write, attrib, t); |
c906108c SS |
1058 | if (res > 0) |
1059 | break; /* Handled all or part of xfer */ | |
1060 | if (t->to_has_all_memory) | |
1061 | break; | |
1062 | } | |
1063 | ||
4930751a | 1064 | if (res <= 0) |
67e0617e | 1065 | return -1; |
4930751a | 1066 | } |
67e0617e C |
1067 | |
1068 | return res; | |
4930751a C |
1069 | } |
1070 | ||
67e0617e C |
1071 | |
1072 | /* Perform a memory transfer. Iterate until the entire region has | |
1073 | been transfered. | |
1074 | ||
1075 | Result is 0 or errno value. */ | |
1076 | ||
4930751a C |
1077 | static int |
1078 | target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write) | |
1079 | { | |
1080 | int res; | |
29e57380 C |
1081 | int reg_len; |
1082 | struct mem_region *region; | |
4930751a C |
1083 | |
1084 | /* Zero length requests are ok and require no work. */ | |
1085 | if (len == 0) | |
1086 | { | |
1087 | return 0; | |
1088 | } | |
1089 | ||
1090 | while (len > 0) | |
1091 | { | |
29e57380 C |
1092 | region = lookup_mem_region(memaddr); |
1093 | if (memaddr + len < region->hi) | |
1094 | reg_len = len; | |
1095 | else | |
1096 | reg_len = region->hi - memaddr; | |
1097 | ||
1098 | switch (region->attrib.mode) | |
c906108c | 1099 | { |
29e57380 C |
1100 | case MEM_RO: |
1101 | if (write) | |
1102 | return EIO; | |
1103 | break; | |
1104 | ||
1105 | case MEM_WO: | |
c906108c | 1106 | if (!write) |
c906108c | 1107 | return EIO; |
29e57380 | 1108 | break; |
c906108c | 1109 | } |
4930751a | 1110 | |
29e57380 C |
1111 | while (reg_len > 0) |
1112 | { | |
1113 | if (region->attrib.cache) | |
8add0441 | 1114 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, |
29e57380 C |
1115 | reg_len, write); |
1116 | else | |
8add0441 | 1117 | res = do_xfer_memory (memaddr, myaddr, reg_len, write, |
29e57380 C |
1118 | ®ion->attrib); |
1119 | ||
1120 | if (res <= 0) | |
1121 | { | |
1122 | /* If this address is for nonexistent memory, read zeros | |
1123 | if reading, or do nothing if writing. Return | |
1124 | error. */ | |
1125 | if (!write) | |
1126 | memset (myaddr, 0, len); | |
1127 | if (errno == 0) | |
1128 | return EIO; | |
1129 | else | |
1130 | return errno; | |
1131 | } | |
1132 | ||
1133 | memaddr += res; | |
1134 | myaddr += res; | |
1135 | len -= res; | |
1136 | reg_len -= res; | |
1137 | } | |
c906108c | 1138 | } |
4930751a | 1139 | |
c906108c SS |
1140 | return 0; /* We managed to cover it all somehow. */ |
1141 | } | |
1142 | ||
1143 | ||
67e0617e C |
1144 | /* Perform a partial memory transfer. |
1145 | ||
1146 | Result is -1 on error, or the number of bytes transfered. */ | |
917317f4 JM |
1147 | |
1148 | static int | |
4930751a | 1149 | target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len, |
917317f4 JM |
1150 | int write_p, int *err) |
1151 | { | |
1152 | int res; | |
29e57380 C |
1153 | int reg_len; |
1154 | struct mem_region *region; | |
917317f4 JM |
1155 | |
1156 | /* Zero length requests are ok and require no work. */ | |
1157 | if (len == 0) | |
1158 | { | |
1159 | *err = 0; | |
1160 | return 0; | |
1161 | } | |
1162 | ||
29e57380 C |
1163 | region = lookup_mem_region(memaddr); |
1164 | if (memaddr + len < region->hi) | |
1165 | reg_len = len; | |
1166 | else | |
1167 | reg_len = region->hi - memaddr; | |
1168 | ||
1169 | switch (region->attrib.mode) | |
1170 | { | |
1171 | case MEM_RO: | |
1172 | if (write_p) | |
1173 | { | |
1174 | *err = EIO; | |
873406a6 | 1175 | return -1; |
29e57380 C |
1176 | } |
1177 | break; | |
1178 | ||
1179 | case MEM_WO: | |
1180 | if (write_p) | |
1181 | { | |
1182 | *err = EIO; | |
873406a6 | 1183 | return -1; |
29e57380 C |
1184 | } |
1185 | break; | |
1186 | } | |
1187 | ||
1188 | if (region->attrib.cache) | |
1189 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, | |
1190 | reg_len, write_p); | |
1191 | else | |
1192 | res = do_xfer_memory (memaddr, myaddr, reg_len, write_p, | |
1193 | ®ion->attrib); | |
1194 | ||
4930751a | 1195 | if (res <= 0) |
917317f4 | 1196 | { |
4930751a C |
1197 | if (errno != 0) |
1198 | *err = errno; | |
1199 | else | |
1200 | *err = EIO; | |
917317f4 | 1201 | |
4930751a | 1202 | return -1; |
917317f4 JM |
1203 | } |
1204 | ||
4930751a | 1205 | *err = 0; |
67e0617e | 1206 | return res; |
917317f4 JM |
1207 | } |
1208 | ||
1209 | int | |
1210 | target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1211 | { | |
0779438d | 1212 | if (target_xfer_partial_p ()) |
27394598 AC |
1213 | return target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, NULL, |
1214 | buf, NULL, memaddr, len); | |
0779438d AC |
1215 | else |
1216 | return target_xfer_memory_partial (memaddr, buf, len, 0, err); | |
917317f4 JM |
1217 | } |
1218 | ||
1219 | int | |
1220 | target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1221 | { | |
0779438d | 1222 | if (target_xfer_partial_p ()) |
27394598 AC |
1223 | return target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, NULL, |
1224 | NULL, buf, memaddr, len); | |
0779438d AC |
1225 | else |
1226 | return target_xfer_memory_partial (memaddr, buf, len, 1, err); | |
917317f4 JM |
1227 | } |
1228 | ||
1e3ff5ad AC |
1229 | /* More generic transfers. */ |
1230 | ||
0088c768 | 1231 | static LONGEST |
8aa91c1e AC |
1232 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
1233 | const char *annex, void *readbuf, | |
1234 | const void *writebuf, ULONGEST offset, LONGEST len) | |
0088c768 AC |
1235 | { |
1236 | if (object == TARGET_OBJECT_MEMORY | |
1237 | && ops->to_xfer_memory != NULL) | |
1238 | /* If available, fall back to the target's "to_xfer_memory" | |
1239 | method. */ | |
1240 | { | |
4b8a223f | 1241 | int xfered = -1; |
0088c768 | 1242 | errno = 0; |
4b8a223f AC |
1243 | if (writebuf != NULL) |
1244 | { | |
1245 | void *buffer = xmalloc (len); | |
1246 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1247 | memcpy (buffer, writebuf, len); | |
1248 | xfered = ops->to_xfer_memory (offset, buffer, len, 1/*write*/, NULL, | |
1249 | ops); | |
1250 | do_cleanups (cleanup); | |
1251 | } | |
1252 | if (readbuf != NULL) | |
1253 | xfered = ops->to_xfer_memory (offset, readbuf, len, 0/*read*/, NULL, | |
0088c768 | 1254 | ops); |
0088c768 AC |
1255 | if (xfered > 0) |
1256 | return xfered; | |
1257 | else if (xfered == 0 && errno == 0) | |
1258 | /* "to_xfer_memory" uses 0, cross checked against ERRNO as one | |
1259 | indication of an error. */ | |
1260 | return 0; | |
1261 | else | |
1262 | return -1; | |
1263 | } | |
1264 | else if (ops->beneath != NULL) | |
27394598 AC |
1265 | return target_xfer_partial (ops->beneath, object, annex, |
1266 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1267 | else |
1268 | return -1; | |
1269 | } | |
1270 | ||
1271 | /* Target vector read/write partial wrapper functions. | |
1272 | ||
1273 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1274 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1275 | easier. */ | |
1276 | ||
1e3ff5ad AC |
1277 | LONGEST |
1278 | target_read_partial (struct target_ops *ops, | |
1279 | enum target_object object, | |
1280 | const char *annex, void *buf, | |
1281 | ULONGEST offset, LONGEST len) | |
1282 | { | |
27394598 | 1283 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1284 | } |
1285 | ||
1286 | LONGEST | |
1287 | target_write_partial (struct target_ops *ops, | |
1288 | enum target_object object, | |
1289 | const char *annex, const void *buf, | |
1290 | ULONGEST offset, LONGEST len) | |
1291 | { | |
27394598 | 1292 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1293 | } |
1294 | ||
1295 | /* Wrappers to perform the full transfer. */ | |
1296 | LONGEST | |
1297 | target_read (struct target_ops *ops, | |
1298 | enum target_object object, | |
1299 | const char *annex, void *buf, | |
1300 | ULONGEST offset, LONGEST len) | |
1301 | { | |
1302 | LONGEST xfered = 0; | |
1303 | while (xfered < len) | |
1304 | { | |
0088c768 AC |
1305 | LONGEST xfer = target_read_partial (ops, object, annex, |
1306 | (bfd_byte *) buf + xfered, | |
1307 | offset + xfered, len - xfered); | |
1e3ff5ad | 1308 | /* Call an observer, notifying them of the xfer progress? */ |
0088c768 AC |
1309 | if (xfer <= 0) |
1310 | /* Call memory_error? */ | |
1311 | return -1; | |
1e3ff5ad AC |
1312 | xfered += xfer; |
1313 | QUIT; | |
1314 | } | |
1315 | return len; | |
1316 | } | |
1317 | ||
1318 | LONGEST | |
1319 | target_write (struct target_ops *ops, | |
1320 | enum target_object object, | |
1321 | const char *annex, const void *buf, | |
1322 | ULONGEST offset, LONGEST len) | |
1323 | { | |
1324 | LONGEST xfered = 0; | |
1325 | while (xfered < len) | |
1326 | { | |
1327 | LONGEST xfer = target_write_partial (ops, object, annex, | |
1328 | (bfd_byte *) buf + xfered, | |
1329 | offset + xfered, len - xfered); | |
1330 | /* Call an observer, notifying them of the xfer progress? */ | |
0088c768 AC |
1331 | if (xfer <= 0) |
1332 | /* Call memory_error? */ | |
1333 | return -1; | |
1e3ff5ad AC |
1334 | xfered += xfer; |
1335 | QUIT; | |
1336 | } | |
1337 | return len; | |
1338 | } | |
1339 | ||
b6591e8b AC |
1340 | /* Memory transfer methods. */ |
1341 | ||
1342 | void | |
1343 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, void *buf, | |
1344 | LONGEST len) | |
1345 | { | |
1346 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1347 | != len) | |
1348 | memory_error (EIO, addr); | |
1349 | } | |
1350 | ||
1351 | ULONGEST | |
1352 | get_target_memory_unsigned (struct target_ops *ops, | |
1353 | CORE_ADDR addr, int len) | |
1354 | { | |
1355 | char buf[sizeof (ULONGEST)]; | |
1356 | ||
1357 | gdb_assert (len <= sizeof (buf)); | |
1358 | get_target_memory (ops, addr, buf, len); | |
1359 | return extract_unsigned_integer (buf, len); | |
1360 | } | |
1361 | ||
c906108c | 1362 | static void |
fba45db2 | 1363 | target_info (char *args, int from_tty) |
c906108c SS |
1364 | { |
1365 | struct target_ops *t; | |
c906108c | 1366 | int has_all_mem = 0; |
c5aa993b | 1367 | |
c906108c SS |
1368 | if (symfile_objfile != NULL) |
1369 | printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name); | |
1370 | ||
258b763a | 1371 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1372 | { |
c906108c SS |
1373 | if (!t->to_has_memory) |
1374 | continue; | |
1375 | ||
c5aa993b | 1376 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1377 | continue; |
1378 | if (has_all_mem) | |
c5aa993b JM |
1379 | printf_unfiltered ("\tWhile running this, GDB does not access memory from...\n"); |
1380 | printf_unfiltered ("%s:\n", t->to_longname); | |
1381 | (t->to_files_info) (t); | |
c906108c SS |
1382 | has_all_mem = t->to_has_all_memory; |
1383 | } | |
1384 | } | |
1385 | ||
1386 | /* This is to be called by the open routine before it does | |
1387 | anything. */ | |
1388 | ||
1389 | void | |
fba45db2 | 1390 | target_preopen (int from_tty) |
c906108c | 1391 | { |
c5aa993b | 1392 | dont_repeat (); |
c906108c SS |
1393 | |
1394 | if (target_has_execution) | |
c5aa993b | 1395 | { |
adf40b2e JM |
1396 | if (!from_tty |
1397 | || query ("A program is being debugged already. Kill it? ")) | |
c5aa993b | 1398 | target_kill (); |
c906108c | 1399 | else |
c5aa993b | 1400 | error ("Program not killed."); |
c906108c SS |
1401 | } |
1402 | ||
1403 | /* Calling target_kill may remove the target from the stack. But if | |
1404 | it doesn't (which seems like a win for UDI), remove it now. */ | |
1405 | ||
1406 | if (target_has_execution) | |
1407 | pop_target (); | |
1408 | } | |
1409 | ||
1410 | /* Detach a target after doing deferred register stores. */ | |
1411 | ||
1412 | void | |
fba45db2 | 1413 | target_detach (char *args, int from_tty) |
c906108c | 1414 | { |
c906108c SS |
1415 | (current_target.to_detach) (args, from_tty); |
1416 | } | |
1417 | ||
6ad8ae5c DJ |
1418 | void |
1419 | target_disconnect (char *args, int from_tty) | |
1420 | { | |
6ad8ae5c DJ |
1421 | (current_target.to_disconnect) (args, from_tty); |
1422 | } | |
1423 | ||
c906108c | 1424 | void |
fba45db2 | 1425 | target_link (char *modname, CORE_ADDR *t_reloc) |
c906108c | 1426 | { |
cb137aa5 | 1427 | if (DEPRECATED_STREQ (current_target.to_shortname, "rombug")) |
c906108c SS |
1428 | { |
1429 | (current_target.to_lookup_symbol) (modname, t_reloc); | |
1430 | if (*t_reloc == 0) | |
c5aa993b | 1431 | error ("Unable to link to %s and get relocation in rombug", modname); |
c906108c SS |
1432 | } |
1433 | else | |
2acceee2 | 1434 | *t_reloc = (CORE_ADDR) -1; |
c906108c SS |
1435 | } |
1436 | ||
ed9a39eb JM |
1437 | int |
1438 | target_async_mask (int mask) | |
1439 | { | |
1440 | int saved_async_masked_status = target_async_mask_value; | |
1441 | target_async_mask_value = mask; | |
1442 | return saved_async_masked_status; | |
1443 | } | |
1444 | ||
c906108c SS |
1445 | /* Look through the list of possible targets for a target that can |
1446 | execute a run or attach command without any other data. This is | |
1447 | used to locate the default process stratum. | |
1448 | ||
1449 | Result is always valid (error() is called for errors). */ | |
1450 | ||
1451 | static struct target_ops * | |
fba45db2 | 1452 | find_default_run_target (char *do_mesg) |
c906108c SS |
1453 | { |
1454 | struct target_ops **t; | |
1455 | struct target_ops *runable = NULL; | |
1456 | int count; | |
1457 | ||
1458 | count = 0; | |
1459 | ||
1460 | for (t = target_structs; t < target_structs + target_struct_size; | |
1461 | ++t) | |
1462 | { | |
c5aa993b | 1463 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
1464 | { |
1465 | runable = *t; | |
1466 | ++count; | |
1467 | } | |
1468 | } | |
1469 | ||
1470 | if (count != 1) | |
1471 | error ("Don't know how to %s. Try \"help target\".", do_mesg); | |
1472 | ||
1473 | return runable; | |
1474 | } | |
1475 | ||
1476 | void | |
fba45db2 | 1477 | find_default_attach (char *args, int from_tty) |
c906108c SS |
1478 | { |
1479 | struct target_ops *t; | |
1480 | ||
c5aa993b | 1481 | t = find_default_run_target ("attach"); |
c906108c SS |
1482 | (t->to_attach) (args, from_tty); |
1483 | return; | |
1484 | } | |
1485 | ||
c906108c | 1486 | void |
c27cda74 AC |
1487 | find_default_create_inferior (char *exec_file, char *allargs, char **env, |
1488 | int from_tty) | |
c906108c SS |
1489 | { |
1490 | struct target_ops *t; | |
1491 | ||
c5aa993b | 1492 | t = find_default_run_target ("run"); |
c27cda74 | 1493 | (t->to_create_inferior) (exec_file, allargs, env, from_tty); |
c906108c SS |
1494 | return; |
1495 | } | |
1496 | ||
ccaa32c7 GS |
1497 | static int |
1498 | default_region_size_ok_for_hw_watchpoint (int byte_count) | |
1499 | { | |
437b434f | 1500 | return (byte_count <= TYPE_LENGTH (builtin_type_void_data_ptr)); |
ccaa32c7 GS |
1501 | } |
1502 | ||
c906108c | 1503 | static int |
fba45db2 | 1504 | return_zero (void) |
c906108c SS |
1505 | { |
1506 | return 0; | |
1507 | } | |
1508 | ||
1509 | static int | |
fba45db2 | 1510 | return_one (void) |
c906108c SS |
1511 | { |
1512 | return 1; | |
1513 | } | |
1514 | ||
ccaa32c7 GS |
1515 | static int |
1516 | return_minus_one (void) | |
1517 | { | |
1518 | return -1; | |
1519 | } | |
1520 | ||
6426a772 JM |
1521 | /* |
1522 | * Resize the to_sections pointer. Also make sure that anyone that | |
1523 | * was holding on to an old value of it gets updated. | |
1524 | * Returns the old size. | |
1525 | */ | |
1526 | ||
1527 | int | |
1528 | target_resize_to_sections (struct target_ops *target, int num_added) | |
1529 | { | |
1530 | struct target_ops **t; | |
1531 | struct section_table *old_value; | |
1532 | int old_count; | |
1533 | ||
1534 | old_value = target->to_sections; | |
1535 | ||
1536 | if (target->to_sections) | |
1537 | { | |
1538 | old_count = target->to_sections_end - target->to_sections; | |
1539 | target->to_sections = (struct section_table *) | |
1540 | xrealloc ((char *) target->to_sections, | |
1541 | (sizeof (struct section_table)) * (num_added + old_count)); | |
1542 | } | |
1543 | else | |
1544 | { | |
1545 | old_count = 0; | |
1546 | target->to_sections = (struct section_table *) | |
1547 | xmalloc ((sizeof (struct section_table)) * num_added); | |
1548 | } | |
1549 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
1550 | ||
1551 | /* Check to see if anyone else was pointing to this structure. | |
1552 | If old_value was null, then no one was. */ | |
1553 | ||
1554 | if (old_value) | |
1555 | { | |
1556 | for (t = target_structs; t < target_structs + target_struct_size; | |
1557 | ++t) | |
1558 | { | |
1559 | if ((*t)->to_sections == old_value) | |
1560 | { | |
1561 | (*t)->to_sections = target->to_sections; | |
1562 | (*t)->to_sections_end = target->to_sections_end; | |
1563 | } | |
1564 | } | |
e354df01 NW |
1565 | /* There is a flattened view of the target stack in current_target, |
1566 | so its to_sections pointer might also need updating. */ | |
1567 | if (current_target.to_sections == old_value) | |
1568 | { | |
1569 | current_target.to_sections = target->to_sections; | |
1570 | current_target.to_sections_end = target->to_sections_end; | |
1571 | } | |
6426a772 JM |
1572 | } |
1573 | ||
1574 | return old_count; | |
1575 | ||
1576 | } | |
1577 | ||
07cd4b97 JB |
1578 | /* Remove all target sections taken from ABFD. |
1579 | ||
1580 | Scan the current target stack for targets whose section tables | |
1581 | refer to sections from BFD, and remove those sections. We use this | |
1582 | when we notice that the inferior has unloaded a shared object, for | |
1583 | example. */ | |
1584 | void | |
1585 | remove_target_sections (bfd *abfd) | |
1586 | { | |
1587 | struct target_ops **t; | |
1588 | ||
1589 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
1590 | { | |
1591 | struct section_table *src, *dest; | |
1592 | ||
1593 | dest = (*t)->to_sections; | |
1594 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
1595 | if (src->bfd != abfd) | |
1596 | { | |
1597 | /* Keep this section. */ | |
1598 | if (dest < src) *dest = *src; | |
1599 | dest++; | |
1600 | } | |
1601 | ||
1602 | /* If we've dropped any sections, resize the section table. */ | |
1603 | if (dest < src) | |
1604 | target_resize_to_sections (*t, dest - src); | |
1605 | } | |
1606 | } | |
1607 | ||
1608 | ||
1609 | ||
1610 | ||
7a292a7a SS |
1611 | /* Find a single runnable target in the stack and return it. If for |
1612 | some reason there is more than one, return NULL. */ | |
1613 | ||
1614 | struct target_ops * | |
fba45db2 | 1615 | find_run_target (void) |
7a292a7a SS |
1616 | { |
1617 | struct target_ops **t; | |
1618 | struct target_ops *runable = NULL; | |
1619 | int count; | |
c5aa993b | 1620 | |
7a292a7a | 1621 | count = 0; |
c5aa993b | 1622 | |
7a292a7a SS |
1623 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
1624 | { | |
c5aa993b | 1625 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
1626 | { |
1627 | runable = *t; | |
1628 | ++count; | |
1629 | } | |
1630 | } | |
c5aa993b | 1631 | |
7a292a7a SS |
1632 | return (count == 1 ? runable : NULL); |
1633 | } | |
1634 | ||
ed9a39eb JM |
1635 | /* Find a single core_stratum target in the list of targets and return it. |
1636 | If for some reason there is more than one, return NULL. */ | |
1637 | ||
c906108c | 1638 | struct target_ops * |
fba45db2 | 1639 | find_core_target (void) |
c906108c SS |
1640 | { |
1641 | struct target_ops **t; | |
1642 | struct target_ops *runable = NULL; | |
1643 | int count; | |
c5aa993b | 1644 | |
c906108c | 1645 | count = 0; |
c5aa993b | 1646 | |
c906108c SS |
1647 | for (t = target_structs; t < target_structs + target_struct_size; |
1648 | ++t) | |
1649 | { | |
1650 | if ((*t)->to_stratum == core_stratum) | |
1651 | { | |
1652 | runable = *t; | |
1653 | ++count; | |
1654 | } | |
1655 | } | |
c5aa993b JM |
1656 | |
1657 | return (count == 1 ? runable : NULL); | |
c906108c | 1658 | } |
ed9a39eb JM |
1659 | |
1660 | /* | |
1661 | * Find the next target down the stack from the specified target. | |
1662 | */ | |
1663 | ||
1664 | struct target_ops * | |
fba45db2 | 1665 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 1666 | { |
258b763a | 1667 | return t->beneath; |
ed9a39eb JM |
1668 | } |
1669 | ||
c906108c SS |
1670 | \f |
1671 | /* The inferior process has died. Long live the inferior! */ | |
1672 | ||
1673 | void | |
fba45db2 | 1674 | generic_mourn_inferior (void) |
c906108c SS |
1675 | { |
1676 | extern int show_breakpoint_hit_counts; | |
1677 | ||
39f77062 | 1678 | inferior_ptid = null_ptid; |
c906108c SS |
1679 | attach_flag = 0; |
1680 | breakpoint_init_inferior (inf_exited); | |
1681 | registers_changed (); | |
1682 | ||
c906108c SS |
1683 | reopen_exec_file (); |
1684 | reinit_frame_cache (); | |
1685 | ||
1686 | /* It is confusing to the user for ignore counts to stick around | |
1687 | from previous runs of the inferior. So clear them. */ | |
1688 | /* However, it is more confusing for the ignore counts to disappear when | |
1689 | using hit counts. So don't clear them if we're counting hits. */ | |
1690 | if (!show_breakpoint_hit_counts) | |
1691 | breakpoint_clear_ignore_counts (); | |
c5b739b5 | 1692 | |
9a4105ab AC |
1693 | if (deprecated_detach_hook) |
1694 | deprecated_detach_hook (); | |
c906108c SS |
1695 | } |
1696 | \f | |
c906108c SS |
1697 | /* Helper function for child_wait and the Lynx derivatives of child_wait. |
1698 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our | |
1699 | translation of that in OURSTATUS. */ | |
1700 | void | |
fba45db2 | 1701 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c SS |
1702 | { |
1703 | #ifdef CHILD_SPECIAL_WAITSTATUS | |
1704 | /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS | |
1705 | if it wants to deal with hoststatus. */ | |
1706 | if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) | |
1707 | return; | |
1708 | #endif | |
1709 | ||
1710 | if (WIFEXITED (hoststatus)) | |
1711 | { | |
1712 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1713 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
1714 | } | |
1715 | else if (!WIFSTOPPED (hoststatus)) | |
1716 | { | |
1717 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1718 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
1719 | } | |
1720 | else | |
1721 | { | |
1722 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1723 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
1724 | } | |
1725 | } | |
1726 | \f | |
c906108c | 1727 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 1728 | int (*target_activity_function) (void); |
c906108c SS |
1729 | int target_activity_fd; |
1730 | \f | |
1731 | /* Convert a normal process ID to a string. Returns the string in a static | |
1732 | buffer. */ | |
1733 | ||
1734 | char * | |
39f77062 | 1735 | normal_pid_to_str (ptid_t ptid) |
c906108c SS |
1736 | { |
1737 | static char buf[30]; | |
1738 | ||
39f77062 | 1739 | sprintf (buf, "process %d", PIDGET (ptid)); |
c906108c SS |
1740 | return buf; |
1741 | } | |
1742 | ||
be4d1333 | 1743 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
1744 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
1745 | { | |
1746 | error ("No target."); | |
1747 | return 0; | |
1748 | } | |
1749 | ||
1750 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
1751 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
1752 | { | |
1753 | error ("No target."); | |
1754 | return NULL; | |
1755 | } | |
1756 | ||
c906108c SS |
1757 | /* Set up the handful of non-empty slots needed by the dummy target |
1758 | vector. */ | |
1759 | ||
1760 | static void | |
fba45db2 | 1761 | init_dummy_target (void) |
c906108c SS |
1762 | { |
1763 | dummy_target.to_shortname = "None"; | |
1764 | dummy_target.to_longname = "None"; | |
1765 | dummy_target.to_doc = ""; | |
1766 | dummy_target.to_attach = find_default_attach; | |
c906108c | 1767 | dummy_target.to_create_inferior = find_default_create_inferior; |
ed9a39eb | 1768 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 1769 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
1770 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
1771 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 1772 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
1773 | dummy_target.to_magic = OPS_MAGIC; |
1774 | } | |
c906108c | 1775 | \f |
c5aa993b | 1776 | |
c906108c SS |
1777 | static struct target_ops debug_target; |
1778 | ||
1779 | static void | |
fba45db2 | 1780 | debug_to_open (char *args, int from_tty) |
c906108c SS |
1781 | { |
1782 | debug_target.to_open (args, from_tty); | |
1783 | ||
96baa820 | 1784 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
1785 | } |
1786 | ||
1787 | static void | |
fba45db2 | 1788 | debug_to_close (int quitting) |
c906108c | 1789 | { |
f1c07ab0 | 1790 | target_close (&debug_target, quitting); |
96baa820 | 1791 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
1792 | } |
1793 | ||
f1c07ab0 AC |
1794 | void |
1795 | target_close (struct target_ops *targ, int quitting) | |
1796 | { | |
1797 | if (targ->to_xclose != NULL) | |
1798 | targ->to_xclose (targ, quitting); | |
1799 | else if (targ->to_close != NULL) | |
1800 | targ->to_close (quitting); | |
1801 | } | |
1802 | ||
c906108c | 1803 | static void |
fba45db2 | 1804 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
1805 | { |
1806 | debug_target.to_attach (args, from_tty); | |
1807 | ||
96baa820 | 1808 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
1809 | } |
1810 | ||
1811 | ||
1812 | static void | |
fba45db2 | 1813 | debug_to_post_attach (int pid) |
c906108c SS |
1814 | { |
1815 | debug_target.to_post_attach (pid); | |
1816 | ||
96baa820 | 1817 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
1818 | } |
1819 | ||
c906108c | 1820 | static void |
fba45db2 | 1821 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
1822 | { |
1823 | debug_target.to_detach (args, from_tty); | |
1824 | ||
96baa820 | 1825 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
1826 | } |
1827 | ||
6ad8ae5c DJ |
1828 | static void |
1829 | debug_to_disconnect (char *args, int from_tty) | |
1830 | { | |
1831 | debug_target.to_disconnect (args, from_tty); | |
1832 | ||
1833 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1834 | args, from_tty); | |
1835 | } | |
1836 | ||
c906108c | 1837 | static void |
39f77062 | 1838 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 1839 | { |
39f77062 | 1840 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 1841 | |
39f77062 | 1842 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
1843 | step ? "step" : "continue", |
1844 | target_signal_to_name (siggnal)); | |
1845 | } | |
1846 | ||
39f77062 KB |
1847 | static ptid_t |
1848 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 1849 | { |
39f77062 | 1850 | ptid_t retval; |
c906108c | 1851 | |
39f77062 | 1852 | retval = debug_target.to_wait (ptid, status); |
c906108c | 1853 | |
96baa820 | 1854 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
1855 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
1856 | PIDGET (retval)); | |
96baa820 | 1857 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
1858 | switch (status->kind) |
1859 | { | |
1860 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 1861 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
1862 | status->value.integer); |
1863 | break; | |
1864 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 1865 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
1866 | target_signal_to_name (status->value.sig)); |
1867 | break; | |
1868 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 1869 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
1870 | target_signal_to_name (status->value.sig)); |
1871 | break; | |
1872 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 1873 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
1874 | break; |
1875 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 1876 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
1877 | break; |
1878 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 1879 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
1880 | break; |
1881 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 1882 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
1883 | break; |
1884 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 1885 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
1886 | break; |
1887 | default: | |
96baa820 | 1888 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
1889 | break; |
1890 | } | |
1891 | ||
1892 | return retval; | |
1893 | } | |
1894 | ||
bf0c5130 AC |
1895 | static void |
1896 | debug_print_register (const char * func, int regno) | |
1897 | { | |
1898 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1899 | if (regno >= 0 && regno < NUM_REGS + NUM_PSEUDO_REGS | |
1900 | && REGISTER_NAME (regno) != NULL && REGISTER_NAME (regno)[0] != '\0') | |
1901 | fprintf_unfiltered (gdb_stdlog, "(%s)", REGISTER_NAME (regno)); | |
1902 | else | |
1903 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1904 | if (regno >= 0) | |
1905 | { | |
1906 | int i; | |
d9d9c31f | 1907 | unsigned char buf[MAX_REGISTER_SIZE]; |
4caf0990 | 1908 | deprecated_read_register_gen (regno, buf); |
bf0c5130 | 1909 | fprintf_unfiltered (gdb_stdlog, " = "); |
3acba339 | 1910 | for (i = 0; i < register_size (current_gdbarch, regno); i++) |
bf0c5130 AC |
1911 | { |
1912 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1913 | } | |
3acba339 | 1914 | if (register_size (current_gdbarch, regno) <= sizeof (LONGEST)) |
bf0c5130 AC |
1915 | { |
1916 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", | |
1917 | paddr_nz (read_register (regno)), | |
1918 | paddr_d (read_register (regno))); | |
1919 | } | |
1920 | } | |
1921 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1922 | } | |
1923 | ||
c906108c | 1924 | static void |
fba45db2 | 1925 | debug_to_fetch_registers (int regno) |
c906108c SS |
1926 | { |
1927 | debug_target.to_fetch_registers (regno); | |
bf0c5130 | 1928 | debug_print_register ("target_fetch_registers", regno); |
c906108c SS |
1929 | } |
1930 | ||
1931 | static void | |
fba45db2 | 1932 | debug_to_store_registers (int regno) |
c906108c SS |
1933 | { |
1934 | debug_target.to_store_registers (regno); | |
bf0c5130 AC |
1935 | debug_print_register ("target_store_registers", regno); |
1936 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c906108c SS |
1937 | } |
1938 | ||
1939 | static void | |
fba45db2 | 1940 | debug_to_prepare_to_store (void) |
c906108c SS |
1941 | { |
1942 | debug_target.to_prepare_to_store (); | |
1943 | ||
96baa820 | 1944 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
1945 | } |
1946 | ||
1947 | static int | |
fba45db2 | 1948 | debug_to_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
29e57380 | 1949 | struct mem_attrib *attrib, |
fba45db2 | 1950 | struct target_ops *target) |
c906108c SS |
1951 | { |
1952 | int retval; | |
1953 | ||
29e57380 C |
1954 | retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write, |
1955 | attrib, target); | |
c906108c | 1956 | |
96baa820 | 1957 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 1958 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 1959 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
1960 | len, write ? "write" : "read", retval); |
1961 | ||
c906108c SS |
1962 | if (retval > 0) |
1963 | { | |
1964 | int i; | |
1965 | ||
96baa820 | 1966 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
1967 | for (i = 0; i < retval; i++) |
1968 | { | |
1969 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
333dabeb DJ |
1970 | { |
1971 | if (targetdebug < 2 && i > 0) | |
1972 | { | |
1973 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1974 | break; | |
1975 | } | |
1976 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1977 | } | |
1978 | ||
96baa820 | 1979 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
1980 | } |
1981 | } | |
1982 | ||
96baa820 | 1983 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
1984 | |
1985 | return retval; | |
1986 | } | |
1987 | ||
1988 | static void | |
fba45db2 | 1989 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
1990 | { |
1991 | debug_target.to_files_info (target); | |
1992 | ||
96baa820 | 1993 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
1994 | } |
1995 | ||
1996 | static int | |
fba45db2 | 1997 | debug_to_insert_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
1998 | { |
1999 | int retval; | |
2000 | ||
2001 | retval = debug_target.to_insert_breakpoint (addr, save); | |
2002 | ||
96baa820 | 2003 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
2004 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
2005 | (unsigned long) addr, | |
2006 | (unsigned long) retval); | |
c906108c SS |
2007 | return retval; |
2008 | } | |
2009 | ||
2010 | static int | |
fba45db2 | 2011 | debug_to_remove_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
2012 | { |
2013 | int retval; | |
2014 | ||
2015 | retval = debug_target.to_remove_breakpoint (addr, save); | |
2016 | ||
96baa820 | 2017 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
2018 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
2019 | (unsigned long) addr, | |
2020 | (unsigned long) retval); | |
c906108c SS |
2021 | return retval; |
2022 | } | |
2023 | ||
ccaa32c7 GS |
2024 | static int |
2025 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2026 | { | |
2027 | int retval; | |
2028 | ||
2029 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2030 | ||
2031 | fprintf_unfiltered (gdb_stdlog, | |
2032 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2033 | (unsigned long) type, | |
2034 | (unsigned long) cnt, | |
2035 | (unsigned long) from_tty, | |
2036 | (unsigned long) retval); | |
2037 | return retval; | |
2038 | } | |
2039 | ||
2040 | static int | |
2041 | debug_to_region_size_ok_for_hw_watchpoint (int byte_count) | |
2042 | { | |
2043 | CORE_ADDR retval; | |
2044 | ||
2045 | retval = debug_target.to_region_size_ok_for_hw_watchpoint (byte_count); | |
2046 | ||
2047 | fprintf_unfiltered (gdb_stdlog, | |
2048 | "TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT (%ld) = 0x%lx\n", | |
2049 | (unsigned long) byte_count, | |
2050 | (unsigned long) retval); | |
2051 | return retval; | |
2052 | } | |
2053 | ||
2054 | static int | |
2055 | debug_to_stopped_by_watchpoint (void) | |
2056 | { | |
2057 | int retval; | |
2058 | ||
2059 | retval = debug_target.to_stopped_by_watchpoint (); | |
2060 | ||
2061 | fprintf_unfiltered (gdb_stdlog, | |
2062 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
2063 | (unsigned long) retval); | |
2064 | return retval; | |
2065 | } | |
2066 | ||
2067 | static CORE_ADDR | |
2068 | debug_to_stopped_data_address (void) | |
2069 | { | |
2070 | CORE_ADDR retval; | |
2071 | ||
2072 | retval = debug_target.to_stopped_data_address (); | |
2073 | ||
2074 | fprintf_unfiltered (gdb_stdlog, | |
2075 | "target_stopped_data_address () = 0x%lx\n", | |
2076 | (unsigned long) retval); | |
2077 | return retval; | |
2078 | } | |
2079 | ||
2080 | static int | |
2081 | debug_to_insert_hw_breakpoint (CORE_ADDR addr, char *save) | |
2082 | { | |
2083 | int retval; | |
2084 | ||
2085 | retval = debug_target.to_insert_hw_breakpoint (addr, save); | |
2086 | ||
2087 | fprintf_unfiltered (gdb_stdlog, | |
2088 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
2089 | (unsigned long) addr, | |
2090 | (unsigned long) retval); | |
2091 | return retval; | |
2092 | } | |
2093 | ||
2094 | static int | |
2095 | debug_to_remove_hw_breakpoint (CORE_ADDR addr, char *save) | |
2096 | { | |
2097 | int retval; | |
2098 | ||
2099 | retval = debug_target.to_remove_hw_breakpoint (addr, save); | |
2100 | ||
2101 | fprintf_unfiltered (gdb_stdlog, | |
2102 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
2103 | (unsigned long) addr, | |
2104 | (unsigned long) retval); | |
2105 | return retval; | |
2106 | } | |
2107 | ||
2108 | static int | |
2109 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2110 | { | |
2111 | int retval; | |
2112 | ||
2113 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2114 | ||
2115 | fprintf_unfiltered (gdb_stdlog, | |
2116 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2117 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2118 | return retval; | |
2119 | } | |
2120 | ||
2121 | static int | |
2122 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2123 | { | |
2124 | int retval; | |
2125 | ||
2126 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2127 | ||
2128 | fprintf_unfiltered (gdb_stdlog, | |
2129 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2130 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2131 | return retval; | |
2132 | } | |
2133 | ||
c906108c | 2134 | static void |
fba45db2 | 2135 | debug_to_terminal_init (void) |
c906108c SS |
2136 | { |
2137 | debug_target.to_terminal_init (); | |
2138 | ||
96baa820 | 2139 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2140 | } |
2141 | ||
2142 | static void | |
fba45db2 | 2143 | debug_to_terminal_inferior (void) |
c906108c SS |
2144 | { |
2145 | debug_target.to_terminal_inferior (); | |
2146 | ||
96baa820 | 2147 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2148 | } |
2149 | ||
2150 | static void | |
fba45db2 | 2151 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2152 | { |
2153 | debug_target.to_terminal_ours_for_output (); | |
2154 | ||
96baa820 | 2155 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2156 | } |
2157 | ||
2158 | static void | |
fba45db2 | 2159 | debug_to_terminal_ours (void) |
c906108c SS |
2160 | { |
2161 | debug_target.to_terminal_ours (); | |
2162 | ||
96baa820 | 2163 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2164 | } |
2165 | ||
a790ad35 SC |
2166 | static void |
2167 | debug_to_terminal_save_ours (void) | |
2168 | { | |
2169 | debug_target.to_terminal_save_ours (); | |
2170 | ||
2171 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2172 | } | |
2173 | ||
c906108c | 2174 | static void |
fba45db2 | 2175 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2176 | { |
2177 | debug_target.to_terminal_info (arg, from_tty); | |
2178 | ||
96baa820 | 2179 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2180 | from_tty); |
2181 | } | |
2182 | ||
2183 | static void | |
fba45db2 | 2184 | debug_to_kill (void) |
c906108c SS |
2185 | { |
2186 | debug_target.to_kill (); | |
2187 | ||
96baa820 | 2188 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2189 | } |
2190 | ||
2191 | static void | |
fba45db2 | 2192 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2193 | { |
2194 | debug_target.to_load (args, from_tty); | |
2195 | ||
96baa820 | 2196 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2197 | } |
2198 | ||
2199 | static int | |
fba45db2 | 2200 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2201 | { |
2202 | int retval; | |
2203 | ||
2204 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2205 | ||
96baa820 | 2206 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2207 | |
2208 | return retval; | |
2209 | } | |
2210 | ||
2211 | static void | |
c27cda74 AC |
2212 | debug_to_create_inferior (char *exec_file, char *args, char **env, |
2213 | int from_tty) | |
c906108c | 2214 | { |
c27cda74 | 2215 | debug_target.to_create_inferior (exec_file, args, env, from_tty); |
c906108c | 2216 | |
c27cda74 AC |
2217 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx, %d)\n", |
2218 | exec_file, args, from_tty); | |
c906108c SS |
2219 | } |
2220 | ||
2221 | static void | |
39f77062 | 2222 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2223 | { |
39f77062 | 2224 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2225 | |
96baa820 | 2226 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2227 | PIDGET (ptid)); |
c906108c SS |
2228 | } |
2229 | ||
2230 | static void | |
fba45db2 | 2231 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2232 | { |
2233 | debug_target.to_acknowledge_created_inferior (pid); | |
2234 | ||
96baa820 | 2235 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2236 | pid); |
2237 | } | |
2238 | ||
c906108c | 2239 | static int |
fba45db2 | 2240 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2241 | { |
c5aa993b | 2242 | int retval; |
c906108c SS |
2243 | |
2244 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
2245 | ||
96baa820 | 2246 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2247 | pid, retval); |
c906108c SS |
2248 | |
2249 | return retval; | |
2250 | } | |
2251 | ||
2252 | static int | |
fba45db2 | 2253 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2254 | { |
c5aa993b | 2255 | int retval; |
c906108c SS |
2256 | |
2257 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2258 | ||
96baa820 | 2259 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2260 | pid, retval); |
c906108c SS |
2261 | |
2262 | return retval; | |
2263 | } | |
2264 | ||
2265 | static int | |
fba45db2 | 2266 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2267 | { |
c5aa993b | 2268 | int retval; |
c906108c SS |
2269 | |
2270 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
2271 | ||
96baa820 | 2272 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)= %d\n", |
c5aa993b | 2273 | pid, retval); |
c906108c SS |
2274 | |
2275 | return retval; | |
2276 | } | |
2277 | ||
2278 | static int | |
fba45db2 | 2279 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2280 | { |
c5aa993b | 2281 | int retval; |
c906108c SS |
2282 | |
2283 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2284 | ||
96baa820 | 2285 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2286 | pid, retval); |
c906108c SS |
2287 | |
2288 | return retval; | |
2289 | } | |
2290 | ||
6604731b DJ |
2291 | static int |
2292 | debug_to_follow_fork (int follow_child) | |
c906108c | 2293 | { |
6604731b | 2294 | int retval = debug_target.to_follow_fork (follow_child); |
c906108c | 2295 | |
6604731b DJ |
2296 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", |
2297 | follow_child, retval); | |
2298 | ||
2299 | return retval; | |
c906108c SS |
2300 | } |
2301 | ||
2302 | static int | |
fba45db2 | 2303 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2304 | { |
c5aa993b | 2305 | int retval; |
c906108c SS |
2306 | |
2307 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
2308 | ||
96baa820 | 2309 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2310 | pid, retval); |
c906108c SS |
2311 | |
2312 | return retval; | |
2313 | } | |
2314 | ||
2315 | static int | |
fba45db2 | 2316 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2317 | { |
c5aa993b | 2318 | int retval; |
c906108c SS |
2319 | |
2320 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2321 | ||
96baa820 | 2322 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2323 | pid, retval); |
c906108c SS |
2324 | |
2325 | return retval; | |
2326 | } | |
2327 | ||
c906108c | 2328 | static int |
fba45db2 | 2329 | debug_to_reported_exec_events_per_exec_call (void) |
c906108c | 2330 | { |
c5aa993b | 2331 | int reported_exec_events; |
c906108c SS |
2332 | |
2333 | reported_exec_events = debug_target.to_reported_exec_events_per_exec_call (); | |
2334 | ||
96baa820 | 2335 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2336 | "target_reported_exec_events_per_exec_call () = %d\n", |
c5aa993b | 2337 | reported_exec_events); |
c906108c SS |
2338 | |
2339 | return reported_exec_events; | |
2340 | } | |
2341 | ||
c906108c | 2342 | static int |
fba45db2 | 2343 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2344 | { |
c5aa993b | 2345 | int has_exited; |
c906108c SS |
2346 | |
2347 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2348 | ||
96baa820 | 2349 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2350 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2351 | |
2352 | return has_exited; | |
2353 | } | |
2354 | ||
2355 | static void | |
fba45db2 | 2356 | debug_to_mourn_inferior (void) |
c906108c SS |
2357 | { |
2358 | debug_target.to_mourn_inferior (); | |
2359 | ||
96baa820 | 2360 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2361 | } |
2362 | ||
2363 | static int | |
fba45db2 | 2364 | debug_to_can_run (void) |
c906108c SS |
2365 | { |
2366 | int retval; | |
2367 | ||
2368 | retval = debug_target.to_can_run (); | |
2369 | ||
96baa820 | 2370 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
2371 | |
2372 | return retval; | |
2373 | } | |
2374 | ||
2375 | static void | |
39f77062 | 2376 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 2377 | { |
39f77062 | 2378 | debug_target.to_notice_signals (ptid); |
c906108c | 2379 | |
39f77062 KB |
2380 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
2381 | PIDGET (ptid)); | |
c906108c SS |
2382 | } |
2383 | ||
2384 | static int | |
39f77062 | 2385 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
2386 | { |
2387 | int retval; | |
2388 | ||
39f77062 | 2389 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 2390 | |
96baa820 | 2391 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 2392 | PIDGET (ptid), retval); |
c906108c SS |
2393 | |
2394 | return retval; | |
2395 | } | |
2396 | ||
0d06e24b | 2397 | static void |
fba45db2 | 2398 | debug_to_find_new_threads (void) |
0d06e24b JM |
2399 | { |
2400 | debug_target.to_find_new_threads (); | |
2401 | ||
2402 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
2403 | } | |
2404 | ||
c906108c | 2405 | static void |
fba45db2 | 2406 | debug_to_stop (void) |
c906108c SS |
2407 | { |
2408 | debug_target.to_stop (); | |
2409 | ||
96baa820 | 2410 | fprintf_unfiltered (gdb_stdlog, "target_stop ()\n"); |
c906108c SS |
2411 | } |
2412 | ||
96baa820 JM |
2413 | static void |
2414 | debug_to_rcmd (char *command, | |
d9fcf2fb | 2415 | struct ui_file *outbuf) |
96baa820 JM |
2416 | { |
2417 | debug_target.to_rcmd (command, outbuf); | |
2418 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
2419 | } | |
2420 | ||
c906108c | 2421 | static struct symtab_and_line * |
fba45db2 | 2422 | debug_to_enable_exception_callback (enum exception_event_kind kind, int enable) |
c906108c | 2423 | { |
7a292a7a SS |
2424 | struct symtab_and_line *result; |
2425 | result = debug_target.to_enable_exception_callback (kind, enable); | |
96baa820 | 2426 | fprintf_unfiltered (gdb_stdlog, |
c906108c SS |
2427 | "target get_exception_callback_sal (%d, %d)\n", |
2428 | kind, enable); | |
7a292a7a | 2429 | return result; |
c906108c SS |
2430 | } |
2431 | ||
2432 | static struct exception_event_record * | |
fba45db2 | 2433 | debug_to_get_current_exception_event (void) |
c906108c | 2434 | { |
7a292a7a | 2435 | struct exception_event_record *result; |
c5aa993b | 2436 | result = debug_target.to_get_current_exception_event (); |
96baa820 | 2437 | fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n"); |
7a292a7a | 2438 | return result; |
c906108c SS |
2439 | } |
2440 | ||
2441 | static char * | |
fba45db2 | 2442 | debug_to_pid_to_exec_file (int pid) |
c906108c | 2443 | { |
c5aa993b | 2444 | char *exec_file; |
c906108c SS |
2445 | |
2446 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
2447 | ||
96baa820 | 2448 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 2449 | pid, exec_file); |
c906108c SS |
2450 | |
2451 | return exec_file; | |
2452 | } | |
2453 | ||
c906108c | 2454 | static void |
fba45db2 | 2455 | setup_target_debug (void) |
c906108c SS |
2456 | { |
2457 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
2458 | ||
2459 | current_target.to_open = debug_to_open; | |
2460 | current_target.to_close = debug_to_close; | |
2461 | current_target.to_attach = debug_to_attach; | |
2462 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 2463 | current_target.to_detach = debug_to_detach; |
6ad8ae5c | 2464 | current_target.to_disconnect = debug_to_disconnect; |
c906108c SS |
2465 | current_target.to_resume = debug_to_resume; |
2466 | current_target.to_wait = debug_to_wait; | |
c906108c SS |
2467 | current_target.to_fetch_registers = debug_to_fetch_registers; |
2468 | current_target.to_store_registers = debug_to_store_registers; | |
2469 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
2470 | current_target.to_xfer_memory = debug_to_xfer_memory; | |
2471 | current_target.to_files_info = debug_to_files_info; | |
2472 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
2473 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
2474 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
2475 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
2476 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
2477 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
2478 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
2479 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
2480 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
2481 | current_target.to_region_size_ok_for_hw_watchpoint = debug_to_region_size_ok_for_hw_watchpoint; | |
c906108c SS |
2482 | current_target.to_terminal_init = debug_to_terminal_init; |
2483 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
2484 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
2485 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 2486 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
2487 | current_target.to_terminal_info = debug_to_terminal_info; |
2488 | current_target.to_kill = debug_to_kill; | |
2489 | current_target.to_load = debug_to_load; | |
2490 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
2491 | current_target.to_create_inferior = debug_to_create_inferior; | |
2492 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
2493 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
2494 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
2495 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
2496 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
2497 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
6604731b | 2498 | current_target.to_follow_fork = debug_to_follow_fork; |
c906108c SS |
2499 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
2500 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 2501 | current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call; |
c906108c SS |
2502 | current_target.to_has_exited = debug_to_has_exited; |
2503 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
2504 | current_target.to_can_run = debug_to_can_run; | |
2505 | current_target.to_notice_signals = debug_to_notice_signals; | |
2506 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 2507 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 2508 | current_target.to_stop = debug_to_stop; |
96baa820 | 2509 | current_target.to_rcmd = debug_to_rcmd; |
c906108c SS |
2510 | current_target.to_enable_exception_callback = debug_to_enable_exception_callback; |
2511 | current_target.to_get_current_exception_event = debug_to_get_current_exception_event; | |
2512 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; | |
c906108c SS |
2513 | |
2514 | } | |
c906108c | 2515 | \f |
c5aa993b JM |
2516 | |
2517 | static char targ_desc[] = | |
2518 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
2519 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
2520 | core-file, and process, if any), as well as the symbol file name."; | |
2521 | ||
96baa820 JM |
2522 | static void |
2523 | do_monitor_command (char *cmd, | |
2524 | int from_tty) | |
2525 | { | |
2b5fe715 AC |
2526 | if ((current_target.to_rcmd |
2527 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 2528 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
2529 | && (debug_target.to_rcmd |
2530 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
96baa820 JM |
2531 | { |
2532 | error ("\"monitor\" command not supported by this target.\n"); | |
2533 | } | |
2534 | target_rcmd (cmd, gdb_stdtarg); | |
2535 | } | |
2536 | ||
c906108c | 2537 | void |
fba45db2 | 2538 | initialize_targets (void) |
c906108c SS |
2539 | { |
2540 | init_dummy_target (); | |
2541 | push_target (&dummy_target); | |
2542 | ||
2543 | add_info ("target", target_info, targ_desc); | |
2544 | add_info ("files", target_info, targ_desc); | |
2545 | ||
cb1a6d5f | 2546 | deprecated_add_show_from_set |
3a11626d MS |
2547 | (add_set_cmd ("target", class_maintenance, var_zinteger, |
2548 | (char *) &targetdebug, | |
2549 | "Set target debugging.\n\ | |
333dabeb DJ |
2550 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
2551 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
2552 | command.", &setdebuglist), | |
3a11626d MS |
2553 | &showdebuglist); |
2554 | ||
e707bbc2 AC |
2555 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
2556 | &trust_readonly, "\ | |
3b64bf98 AC |
2557 | Set mode for reading from readonly sections.", "\ |
2558 | Show mode for reading from readonly sections.", "\ | |
3a11626d MS |
2559 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
2560 | will be read from the object file instead of from the target. This will\n\ | |
e707bbc2 | 2561 | result in significant performance improvement for remote targets.", "\ |
3b64bf98 | 2562 | Mode for reading from readonly sections is %s.", |
e707bbc2 AC |
2563 | NULL, NULL, |
2564 | &setlist, &showlist); | |
96baa820 JM |
2565 | |
2566 | add_com ("monitor", class_obscure, do_monitor_command, | |
2567 | "Send a command to the remote monitor (remote targets only)."); | |
2568 | ||
8add0441 | 2569 | target_dcache = dcache_init (); |
c906108c | 2570 | } |