Commit | Line | Data |
---|---|---|
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 | |
aa869812 AC |
89 | static struct target_ops debug_target; |
90 | ||
a14ed312 | 91 | static void debug_to_open (char *, int); |
c906108c | 92 | |
a14ed312 | 93 | static void debug_to_close (int); |
c906108c | 94 | |
a14ed312 | 95 | static void debug_to_attach (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void debug_to_detach (char *, int); |
c906108c | 98 | |
6ad8ae5c DJ |
99 | static void debug_to_disconnect (char *, int); |
100 | ||
39f77062 | 101 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 102 | |
39f77062 | 103 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 104 | |
a14ed312 | 105 | static void debug_to_fetch_registers (int); |
c906108c | 106 | |
a14ed312 | 107 | static void debug_to_store_registers (int); |
c906108c | 108 | |
a14ed312 | 109 | static void debug_to_prepare_to_store (void); |
c906108c | 110 | |
5ae5f592 AC |
111 | static int debug_to_xfer_memory (CORE_ADDR, char *, int, int, |
112 | struct mem_attrib *, struct target_ops *); | |
c906108c | 113 | |
a14ed312 | 114 | static void debug_to_files_info (struct target_ops *); |
c906108c | 115 | |
a14ed312 | 116 | static int debug_to_insert_breakpoint (CORE_ADDR, char *); |
c906108c | 117 | |
a14ed312 | 118 | static int debug_to_remove_breakpoint (CORE_ADDR, char *); |
c906108c | 119 | |
ccaa32c7 GS |
120 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
121 | ||
122 | static int debug_to_insert_hw_breakpoint (CORE_ADDR, char *); | |
123 | ||
124 | static int debug_to_remove_hw_breakpoint (CORE_ADDR, char *); | |
125 | ||
126 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
127 | ||
128 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
129 | ||
130 | static int debug_to_stopped_by_watchpoint (void); | |
131 | ||
4aa7a7f5 | 132 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 GS |
133 | |
134 | static int debug_to_region_size_ok_for_hw_watchpoint (int); | |
135 | ||
a14ed312 | 136 | static void debug_to_terminal_init (void); |
c906108c | 137 | |
a14ed312 | 138 | static void debug_to_terminal_inferior (void); |
c906108c | 139 | |
a14ed312 | 140 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 141 | |
a790ad35 SC |
142 | static void debug_to_terminal_save_ours (void); |
143 | ||
a14ed312 | 144 | static void debug_to_terminal_ours (void); |
c906108c | 145 | |
a14ed312 | 146 | static void debug_to_terminal_info (char *, int); |
c906108c | 147 | |
a14ed312 | 148 | static void debug_to_kill (void); |
c906108c | 149 | |
a14ed312 | 150 | static void debug_to_load (char *, int); |
c906108c | 151 | |
a14ed312 | 152 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 153 | |
a14ed312 | 154 | static void debug_to_mourn_inferior (void); |
c906108c | 155 | |
a14ed312 | 156 | static int debug_to_can_run (void); |
c906108c | 157 | |
39f77062 | 158 | static void debug_to_notice_signals (ptid_t); |
c906108c | 159 | |
39f77062 | 160 | static int debug_to_thread_alive (ptid_t); |
c906108c | 161 | |
a14ed312 | 162 | static void debug_to_stop (void); |
c906108c | 163 | |
5ac10fd1 AC |
164 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
165 | wierd and mysterious ways. Putting the variable here lets those | |
166 | wierd and mysterious ways keep building while they are being | |
167 | converted to the inferior inheritance structure. */ | |
1df84f13 | 168 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 169 | |
c906108c SS |
170 | /* Pointer to array of target architecture structures; the size of the |
171 | array; the current index into the array; the allocated size of the | |
172 | array. */ | |
173 | struct target_ops **target_structs; | |
174 | unsigned target_struct_size; | |
175 | unsigned target_struct_index; | |
176 | unsigned target_struct_allocsize; | |
177 | #define DEFAULT_ALLOCSIZE 10 | |
178 | ||
179 | /* The initial current target, so that there is always a semi-valid | |
180 | current target. */ | |
181 | ||
182 | static struct target_ops dummy_target; | |
183 | ||
184 | /* Top of target stack. */ | |
185 | ||
258b763a | 186 | static struct target_ops *target_stack; |
c906108c SS |
187 | |
188 | /* The target structure we are currently using to talk to a process | |
189 | or file or whatever "inferior" we have. */ | |
190 | ||
191 | struct target_ops current_target; | |
192 | ||
193 | /* Command list for target. */ | |
194 | ||
195 | static struct cmd_list_element *targetlist = NULL; | |
196 | ||
197 | /* Nonzero if we are debugging an attached outside process | |
198 | rather than an inferior. */ | |
199 | ||
200 | int attach_flag; | |
201 | ||
c906108c SS |
202 | /* Non-zero if we want to see trace of target level stuff. */ |
203 | ||
204 | static int targetdebug = 0; | |
205 | ||
a14ed312 | 206 | static void setup_target_debug (void); |
c906108c | 207 | |
4930751a C |
208 | DCACHE *target_dcache; |
209 | ||
c906108c SS |
210 | /* The user just typed 'target' without the name of a target. */ |
211 | ||
c906108c | 212 | static void |
fba45db2 | 213 | target_command (char *arg, int from_tty) |
c906108c SS |
214 | { |
215 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
216 | gdb_stdout); | |
217 | } | |
218 | ||
219 | /* Add a possible target architecture to the list. */ | |
220 | ||
221 | void | |
fba45db2 | 222 | add_target (struct target_ops *t) |
c906108c | 223 | { |
0088c768 | 224 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
225 | if (t->to_xfer_partial == NULL) |
226 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 227 | |
c906108c SS |
228 | if (!target_structs) |
229 | { | |
230 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
231 | target_structs = (struct target_ops **) xmalloc | |
232 | (target_struct_allocsize * sizeof (*target_structs)); | |
233 | } | |
234 | if (target_struct_size >= target_struct_allocsize) | |
235 | { | |
236 | target_struct_allocsize *= 2; | |
237 | target_structs = (struct target_ops **) | |
c5aa993b JM |
238 | xrealloc ((char *) target_structs, |
239 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
240 | } |
241 | target_structs[target_struct_size++] = t; | |
c906108c SS |
242 | |
243 | if (targetlist == NULL) | |
244 | add_prefix_cmd ("target", class_run, target_command, | |
245 | "Connect to a target machine or process.\n\ | |
246 | The first argument is the type or protocol of the target machine.\n\ | |
247 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
248 | information on the arguments for a particular protocol, type\n\ | |
249 | `help target ' followed by the protocol name.", | |
250 | &targetlist, "target ", 0, &cmdlist); | |
251 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
252 | } | |
253 | ||
254 | /* Stub functions */ | |
255 | ||
256 | void | |
fba45db2 | 257 | target_ignore (void) |
c906108c SS |
258 | { |
259 | } | |
260 | ||
11cf8741 JM |
261 | void |
262 | target_load (char *arg, int from_tty) | |
263 | { | |
4930751a | 264 | dcache_invalidate (target_dcache); |
11cf8741 JM |
265 | (*current_target.to_load) (arg, from_tty); |
266 | } | |
267 | ||
c906108c | 268 | static int |
fba45db2 KB |
269 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
270 | struct target_ops *t) | |
c906108c | 271 | { |
c5aa993b JM |
272 | errno = EIO; /* Can't read/write this location */ |
273 | return 0; /* No bytes handled */ | |
c906108c SS |
274 | } |
275 | ||
276 | static void | |
fba45db2 | 277 | tcomplain (void) |
c906108c SS |
278 | { |
279 | error ("You can't do that when your target is `%s'", | |
280 | current_target.to_shortname); | |
281 | } | |
282 | ||
283 | void | |
fba45db2 | 284 | noprocess (void) |
c906108c SS |
285 | { |
286 | error ("You can't do that without a process to debug."); | |
287 | } | |
288 | ||
c906108c | 289 | static int |
fba45db2 | 290 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 291 | { |
c5aa993b | 292 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
293 | } |
294 | ||
392a587b | 295 | static void |
fba45db2 | 296 | nosupport_runtime (void) |
c906108c | 297 | { |
39f77062 | 298 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
299 | noprocess (); |
300 | else | |
301 | error ("No run-time support for this"); | |
302 | } | |
303 | ||
304 | ||
c906108c | 305 | static void |
fba45db2 | 306 | default_terminal_info (char *args, int from_tty) |
c906108c | 307 | { |
c5aa993b | 308 | printf_unfiltered ("No saved terminal information.\n"); |
c906108c SS |
309 | } |
310 | ||
311 | /* This is the default target_create_inferior and target_attach function. | |
312 | If the current target is executing, it asks whether to kill it off. | |
313 | If this function returns without calling error(), it has killed off | |
314 | the target, and the operation should be attempted. */ | |
315 | ||
316 | static void | |
fba45db2 | 317 | kill_or_be_killed (int from_tty) |
c906108c SS |
318 | { |
319 | if (target_has_execution) | |
320 | { | |
321 | printf_unfiltered ("You are already running a program:\n"); | |
322 | target_files_info (); | |
c5aa993b JM |
323 | if (query ("Kill it? ")) |
324 | { | |
325 | target_kill (); | |
326 | if (target_has_execution) | |
327 | error ("Killing the program did not help."); | |
328 | return; | |
329 | } | |
330 | else | |
331 | { | |
332 | error ("Program not killed."); | |
333 | } | |
c906108c | 334 | } |
c5aa993b | 335 | tcomplain (); |
c906108c SS |
336 | } |
337 | ||
338 | static void | |
fba45db2 | 339 | maybe_kill_then_attach (char *args, int from_tty) |
c906108c SS |
340 | { |
341 | kill_or_be_killed (from_tty); | |
342 | target_attach (args, from_tty); | |
343 | } | |
344 | ||
345 | static void | |
c27cda74 AC |
346 | maybe_kill_then_create_inferior (char *exec, char *args, char **env, |
347 | int from_tty) | |
c906108c SS |
348 | { |
349 | kill_or_be_killed (0); | |
c27cda74 | 350 | target_create_inferior (exec, args, env, from_tty); |
c906108c SS |
351 | } |
352 | ||
7998dfc3 AC |
353 | /* Go through the target stack from top to bottom, copying over zero |
354 | entries in current_target, then filling in still empty entries. In | |
355 | effect, we are doing class inheritance through the pushed target | |
356 | vectors. | |
357 | ||
358 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
359 | is currently implemented, is that it discards any knowledge of | |
360 | which target an inherited method originally belonged to. | |
361 | Consequently, new new target methods should instead explicitly and | |
362 | locally search the target stack for the target that can handle the | |
363 | request. */ | |
c906108c SS |
364 | |
365 | static void | |
7998dfc3 | 366 | update_current_target (void) |
c906108c | 367 | { |
7998dfc3 AC |
368 | struct target_ops *t; |
369 | ||
370 | /* First, reset curren'ts contents. */ | |
371 | memset (¤t_target, 0, sizeof (current_target)); | |
372 | ||
373 | #define INHERIT(FIELD, TARGET) \ | |
374 | if (!current_target.FIELD) \ | |
375 | current_target.FIELD = (TARGET)->FIELD | |
376 | ||
377 | for (t = target_stack; t; t = t->beneath) | |
378 | { | |
379 | INHERIT (to_shortname, t); | |
380 | INHERIT (to_longname, t); | |
381 | INHERIT (to_doc, t); | |
382 | INHERIT (to_open, t); | |
383 | INHERIT (to_close, t); | |
384 | INHERIT (to_attach, t); | |
385 | INHERIT (to_post_attach, t); | |
386 | INHERIT (to_detach, t); | |
387 | INHERIT (to_disconnect, t); | |
388 | INHERIT (to_resume, t); | |
389 | INHERIT (to_wait, t); | |
7998dfc3 AC |
390 | INHERIT (to_fetch_registers, t); |
391 | INHERIT (to_store_registers, t); | |
392 | INHERIT (to_prepare_to_store, t); | |
393 | INHERIT (to_xfer_memory, t); | |
394 | INHERIT (to_files_info, t); | |
395 | INHERIT (to_insert_breakpoint, t); | |
396 | INHERIT (to_remove_breakpoint, t); | |
397 | INHERIT (to_can_use_hw_breakpoint, t); | |
398 | INHERIT (to_insert_hw_breakpoint, t); | |
399 | INHERIT (to_remove_hw_breakpoint, t); | |
400 | INHERIT (to_insert_watchpoint, t); | |
401 | INHERIT (to_remove_watchpoint, t); | |
402 | INHERIT (to_stopped_data_address, t); | |
403 | INHERIT (to_stopped_by_watchpoint, t); | |
404 | INHERIT (to_have_continuable_watchpoint, t); | |
405 | INHERIT (to_region_size_ok_for_hw_watchpoint, t); | |
406 | INHERIT (to_terminal_init, t); | |
407 | INHERIT (to_terminal_inferior, t); | |
408 | INHERIT (to_terminal_ours_for_output, t); | |
409 | INHERIT (to_terminal_ours, t); | |
410 | INHERIT (to_terminal_save_ours, t); | |
411 | INHERIT (to_terminal_info, t); | |
412 | INHERIT (to_kill, t); | |
413 | INHERIT (to_load, t); | |
414 | INHERIT (to_lookup_symbol, t); | |
415 | INHERIT (to_create_inferior, t); | |
416 | INHERIT (to_post_startup_inferior, t); | |
417 | INHERIT (to_acknowledge_created_inferior, t); | |
418 | INHERIT (to_insert_fork_catchpoint, t); | |
419 | INHERIT (to_remove_fork_catchpoint, t); | |
420 | INHERIT (to_insert_vfork_catchpoint, t); | |
421 | INHERIT (to_remove_vfork_catchpoint, t); | |
422 | INHERIT (to_follow_fork, t); | |
423 | INHERIT (to_insert_exec_catchpoint, t); | |
424 | INHERIT (to_remove_exec_catchpoint, t); | |
425 | INHERIT (to_reported_exec_events_per_exec_call, t); | |
426 | INHERIT (to_has_exited, t); | |
427 | INHERIT (to_mourn_inferior, t); | |
428 | INHERIT (to_can_run, t); | |
429 | INHERIT (to_notice_signals, t); | |
430 | INHERIT (to_thread_alive, t); | |
431 | INHERIT (to_find_new_threads, t); | |
432 | INHERIT (to_pid_to_str, t); | |
433 | INHERIT (to_extra_thread_info, t); | |
434 | INHERIT (to_stop, t); | |
4b8a223f | 435 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 AC |
436 | INHERIT (to_rcmd, t); |
437 | INHERIT (to_enable_exception_callback, t); | |
438 | INHERIT (to_get_current_exception_event, t); | |
439 | INHERIT (to_pid_to_exec_file, t); | |
440 | INHERIT (to_stratum, t); | |
441 | INHERIT (to_has_all_memory, t); | |
442 | INHERIT (to_has_memory, t); | |
443 | INHERIT (to_has_stack, t); | |
444 | INHERIT (to_has_registers, t); | |
445 | INHERIT (to_has_execution, t); | |
446 | INHERIT (to_has_thread_control, t); | |
447 | INHERIT (to_sections, t); | |
448 | INHERIT (to_sections_end, t); | |
449 | INHERIT (to_can_async_p, t); | |
450 | INHERIT (to_is_async_p, t); | |
451 | INHERIT (to_async, t); | |
452 | INHERIT (to_async_mask_value, t); | |
453 | INHERIT (to_find_memory_regions, t); | |
454 | INHERIT (to_make_corefile_notes, t); | |
455 | INHERIT (to_get_thread_local_address, t); | |
456 | INHERIT (to_magic, t); | |
457 | } | |
458 | #undef INHERIT | |
459 | ||
460 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
461 | it. Some entries are defaulted to a method that print an error, |
462 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
463 | |
464 | #define de_fault(field, value) \ | |
7998dfc3 AC |
465 | if (!current_target.field) \ |
466 | current_target.field = value | |
0d06e24b JM |
467 | |
468 | de_fault (to_open, | |
469 | (void (*) (char *, int)) | |
470 | tcomplain); | |
471 | de_fault (to_close, | |
472 | (void (*) (int)) | |
473 | target_ignore); | |
474 | de_fault (to_attach, | |
475 | maybe_kill_then_attach); | |
476 | de_fault (to_post_attach, | |
477 | (void (*) (int)) | |
478 | target_ignore); | |
0d06e24b JM |
479 | de_fault (to_detach, |
480 | (void (*) (char *, int)) | |
481 | target_ignore); | |
6ad8ae5c DJ |
482 | de_fault (to_disconnect, |
483 | (void (*) (char *, int)) | |
484 | tcomplain); | |
0d06e24b | 485 | de_fault (to_resume, |
39f77062 | 486 | (void (*) (ptid_t, int, enum target_signal)) |
0d06e24b JM |
487 | noprocess); |
488 | de_fault (to_wait, | |
39f77062 | 489 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) |
0d06e24b | 490 | noprocess); |
0d06e24b JM |
491 | de_fault (to_fetch_registers, |
492 | (void (*) (int)) | |
493 | target_ignore); | |
494 | de_fault (to_store_registers, | |
495 | (void (*) (int)) | |
496 | noprocess); | |
497 | de_fault (to_prepare_to_store, | |
498 | (void (*) (void)) | |
499 | noprocess); | |
500 | de_fault (to_xfer_memory, | |
29e57380 | 501 | (int (*) (CORE_ADDR, char *, int, int, struct mem_attrib *, struct target_ops *)) |
0d06e24b JM |
502 | nomemory); |
503 | de_fault (to_files_info, | |
504 | (void (*) (struct target_ops *)) | |
505 | target_ignore); | |
506 | de_fault (to_insert_breakpoint, | |
507 | memory_insert_breakpoint); | |
508 | de_fault (to_remove_breakpoint, | |
509 | memory_remove_breakpoint); | |
ccaa32c7 GS |
510 | de_fault (to_can_use_hw_breakpoint, |
511 | (int (*) (int, int, int)) | |
512 | return_zero); | |
513 | de_fault (to_insert_hw_breakpoint, | |
514 | (int (*) (CORE_ADDR, char *)) | |
515 | return_minus_one); | |
516 | de_fault (to_remove_hw_breakpoint, | |
517 | (int (*) (CORE_ADDR, char *)) | |
518 | return_minus_one); | |
519 | de_fault (to_insert_watchpoint, | |
520 | (int (*) (CORE_ADDR, int, int)) | |
521 | return_minus_one); | |
522 | de_fault (to_remove_watchpoint, | |
523 | (int (*) (CORE_ADDR, int, int)) | |
524 | return_minus_one); | |
525 | de_fault (to_stopped_by_watchpoint, | |
526 | (int (*) (void)) | |
527 | return_zero); | |
528 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 529 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 GS |
530 | return_zero); |
531 | de_fault (to_region_size_ok_for_hw_watchpoint, | |
532 | default_region_size_ok_for_hw_watchpoint); | |
0d06e24b JM |
533 | de_fault (to_terminal_init, |
534 | (void (*) (void)) | |
535 | target_ignore); | |
536 | de_fault (to_terminal_inferior, | |
537 | (void (*) (void)) | |
538 | target_ignore); | |
539 | de_fault (to_terminal_ours_for_output, | |
540 | (void (*) (void)) | |
541 | target_ignore); | |
542 | de_fault (to_terminal_ours, | |
543 | (void (*) (void)) | |
544 | target_ignore); | |
a790ad35 SC |
545 | de_fault (to_terminal_save_ours, |
546 | (void (*) (void)) | |
547 | target_ignore); | |
0d06e24b JM |
548 | de_fault (to_terminal_info, |
549 | default_terminal_info); | |
550 | de_fault (to_kill, | |
551 | (void (*) (void)) | |
552 | noprocess); | |
553 | de_fault (to_load, | |
554 | (void (*) (char *, int)) | |
555 | tcomplain); | |
556 | de_fault (to_lookup_symbol, | |
557 | (int (*) (char *, CORE_ADDR *)) | |
558 | nosymbol); | |
559 | de_fault (to_create_inferior, | |
560 | maybe_kill_then_create_inferior); | |
561 | de_fault (to_post_startup_inferior, | |
39f77062 | 562 | (void (*) (ptid_t)) |
0d06e24b JM |
563 | target_ignore); |
564 | de_fault (to_acknowledge_created_inferior, | |
565 | (void (*) (int)) | |
566 | target_ignore); | |
0d06e24b JM |
567 | de_fault (to_insert_fork_catchpoint, |
568 | (int (*) (int)) | |
569 | tcomplain); | |
570 | de_fault (to_remove_fork_catchpoint, | |
571 | (int (*) (int)) | |
572 | tcomplain); | |
573 | de_fault (to_insert_vfork_catchpoint, | |
574 | (int (*) (int)) | |
575 | tcomplain); | |
576 | de_fault (to_remove_vfork_catchpoint, | |
577 | (int (*) (int)) | |
578 | tcomplain); | |
4c9ba7e0 | 579 | de_fault (to_follow_fork, |
6604731b | 580 | (int (*) (int)) |
0d06e24b JM |
581 | target_ignore); |
582 | de_fault (to_insert_exec_catchpoint, | |
583 | (int (*) (int)) | |
584 | tcomplain); | |
585 | de_fault (to_remove_exec_catchpoint, | |
586 | (int (*) (int)) | |
587 | tcomplain); | |
0d06e24b JM |
588 | de_fault (to_reported_exec_events_per_exec_call, |
589 | (int (*) (void)) | |
590 | return_one); | |
0d06e24b JM |
591 | de_fault (to_has_exited, |
592 | (int (*) (int, int, int *)) | |
593 | return_zero); | |
594 | de_fault (to_mourn_inferior, | |
595 | (void (*) (void)) | |
596 | noprocess); | |
597 | de_fault (to_can_run, | |
598 | return_zero); | |
599 | de_fault (to_notice_signals, | |
39f77062 | 600 | (void (*) (ptid_t)) |
0d06e24b JM |
601 | target_ignore); |
602 | de_fault (to_thread_alive, | |
39f77062 | 603 | (int (*) (ptid_t)) |
0d06e24b JM |
604 | return_zero); |
605 | de_fault (to_find_new_threads, | |
606 | (void (*) (void)) | |
607 | target_ignore); | |
608 | de_fault (to_extra_thread_info, | |
609 | (char *(*) (struct thread_info *)) | |
610 | return_zero); | |
611 | de_fault (to_stop, | |
612 | (void (*) (void)) | |
613 | target_ignore); | |
4b8a223f | 614 | current_target.to_xfer_partial = default_xfer_partial; |
0d06e24b | 615 | de_fault (to_rcmd, |
d9fcf2fb | 616 | (void (*) (char *, struct ui_file *)) |
0d06e24b JM |
617 | tcomplain); |
618 | de_fault (to_enable_exception_callback, | |
619 | (struct symtab_and_line * (*) (enum exception_event_kind, int)) | |
620 | nosupport_runtime); | |
621 | de_fault (to_get_current_exception_event, | |
622 | (struct exception_event_record * (*) (void)) | |
623 | nosupport_runtime); | |
624 | de_fault (to_pid_to_exec_file, | |
625 | (char *(*) (int)) | |
626 | return_zero); | |
0d06e24b JM |
627 | de_fault (to_can_async_p, |
628 | (int (*) (void)) | |
629 | return_zero); | |
630 | de_fault (to_is_async_p, | |
631 | (int (*) (void)) | |
632 | return_zero); | |
633 | de_fault (to_async, | |
634 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
635 | tcomplain); | |
c906108c | 636 | #undef de_fault |
c906108c | 637 | |
7998dfc3 AC |
638 | /* Finally, position the target-stack beneath the squashed |
639 | "current_target". That way code looking for a non-inherited | |
640 | target method can quickly and simply find it. */ | |
641 | current_target.beneath = target_stack; | |
c906108c SS |
642 | } |
643 | ||
644 | /* Push a new target type into the stack of the existing target accessors, | |
645 | possibly superseding some of the existing accessors. | |
646 | ||
647 | Result is zero if the pushed target ended up on top of the stack, | |
648 | nonzero if at least one target is on top of it. | |
649 | ||
650 | Rather than allow an empty stack, we always have the dummy target at | |
651 | the bottom stratum, so we can call the function vectors without | |
652 | checking them. */ | |
653 | ||
654 | int | |
fba45db2 | 655 | push_target (struct target_ops *t) |
c906108c | 656 | { |
258b763a | 657 | struct target_ops **cur; |
c906108c SS |
658 | |
659 | /* Check magic number. If wrong, it probably means someone changed | |
660 | the struct definition, but not all the places that initialize one. */ | |
661 | if (t->to_magic != OPS_MAGIC) | |
662 | { | |
c5aa993b JM |
663 | fprintf_unfiltered (gdb_stderr, |
664 | "Magic number of %s target struct wrong\n", | |
665 | t->to_shortname); | |
e1e9e218 | 666 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
667 | } |
668 | ||
258b763a AC |
669 | /* Find the proper stratum to install this target in. */ |
670 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 671 | { |
258b763a | 672 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
673 | break; |
674 | } | |
675 | ||
258b763a AC |
676 | /* If there's already targets at this stratum, remove them. */ |
677 | /* FIXME: cagney/2003-10-15: I think this should be poping all | |
678 | targets to CUR, and not just those at this stratum level. */ | |
679 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
680 | { | |
681 | /* There's already something at this stratum level. Close it, | |
682 | and un-hook it from the stack. */ | |
683 | struct target_ops *tmp = (*cur); | |
684 | (*cur) = (*cur)->beneath; | |
685 | tmp->beneath = NULL; | |
f1c07ab0 | 686 | target_close (tmp, 0); |
258b763a | 687 | } |
c906108c SS |
688 | |
689 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
690 | t->beneath = (*cur); |
691 | (*cur) = t; | |
c906108c SS |
692 | |
693 | update_current_target (); | |
694 | ||
c906108c SS |
695 | if (targetdebug) |
696 | setup_target_debug (); | |
c906108c | 697 | |
258b763a AC |
698 | /* Not on top? */ |
699 | return (t != target_stack); | |
c906108c SS |
700 | } |
701 | ||
702 | /* Remove a target_ops vector from the stack, wherever it may be. | |
703 | Return how many times it was removed (0 or 1). */ | |
704 | ||
705 | int | |
fba45db2 | 706 | unpush_target (struct target_ops *t) |
c906108c | 707 | { |
258b763a AC |
708 | struct target_ops **cur; |
709 | struct target_ops *tmp; | |
c906108c | 710 | |
c906108c SS |
711 | /* Look for the specified target. Note that we assume that a target |
712 | can only occur once in the target stack. */ | |
713 | ||
258b763a AC |
714 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
715 | { | |
716 | if ((*cur) == t) | |
717 | break; | |
718 | } | |
c906108c | 719 | |
258b763a | 720 | if ((*cur) == NULL) |
c906108c SS |
721 | return 0; /* Didn't find target_ops, quit now */ |
722 | ||
5269965e AC |
723 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
724 | unconditional by moving it to before the above check that the | |
725 | target was in the target stack (something about "Change the way | |
726 | pushing and popping of targets work to support target overlays | |
727 | and inheritance"). This doesn't make much sense - only open | |
728 | targets should be closed. */ | |
729 | target_close (t, 0); | |
730 | ||
c906108c | 731 | /* Unchain the target */ |
258b763a AC |
732 | tmp = (*cur); |
733 | (*cur) = (*cur)->beneath; | |
734 | tmp->beneath = NULL; | |
c906108c SS |
735 | |
736 | update_current_target (); | |
c906108c SS |
737 | |
738 | return 1; | |
739 | } | |
740 | ||
741 | void | |
fba45db2 | 742 | pop_target (void) |
c906108c | 743 | { |
f1c07ab0 | 744 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 745 | if (unpush_target (target_stack) == 1) |
c906108c SS |
746 | return; |
747 | ||
c5aa993b JM |
748 | fprintf_unfiltered (gdb_stderr, |
749 | "pop_target couldn't find target %s\n", | |
750 | current_target.to_shortname); | |
e1e9e218 | 751 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
752 | } |
753 | ||
754 | #undef MIN | |
755 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
756 | ||
757 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
758 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
759 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
760 | is responsible for freeing it. Return the number of bytes successfully | |
761 | read. */ | |
762 | ||
763 | int | |
fba45db2 | 764 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
765 | { |
766 | int tlen, origlen, offset, i; | |
767 | char buf[4]; | |
768 | int errcode = 0; | |
769 | char *buffer; | |
770 | int buffer_allocated; | |
771 | char *bufptr; | |
772 | unsigned int nbytes_read = 0; | |
773 | ||
774 | /* Small for testing. */ | |
775 | buffer_allocated = 4; | |
776 | buffer = xmalloc (buffer_allocated); | |
777 | bufptr = buffer; | |
778 | ||
779 | origlen = len; | |
780 | ||
781 | while (len > 0) | |
782 | { | |
783 | tlen = MIN (len, 4 - (memaddr & 3)); | |
784 | offset = memaddr & 3; | |
785 | ||
b8eb5af0 | 786 | errcode = target_read_memory (memaddr & ~3, buf, 4); |
c906108c SS |
787 | if (errcode != 0) |
788 | { | |
789 | /* The transfer request might have crossed the boundary to an | |
790 | unallocated region of memory. Retry the transfer, requesting | |
791 | a single byte. */ | |
792 | tlen = 1; | |
793 | offset = 0; | |
b8eb5af0 | 794 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
795 | if (errcode != 0) |
796 | goto done; | |
797 | } | |
798 | ||
799 | if (bufptr - buffer + tlen > buffer_allocated) | |
800 | { | |
801 | unsigned int bytes; | |
802 | bytes = bufptr - buffer; | |
803 | buffer_allocated *= 2; | |
804 | buffer = xrealloc (buffer, buffer_allocated); | |
805 | bufptr = buffer + bytes; | |
806 | } | |
807 | ||
808 | for (i = 0; i < tlen; i++) | |
809 | { | |
810 | *bufptr++ = buf[i + offset]; | |
811 | if (buf[i + offset] == '\000') | |
812 | { | |
813 | nbytes_read += i + 1; | |
814 | goto done; | |
815 | } | |
816 | } | |
817 | ||
818 | memaddr += tlen; | |
819 | len -= tlen; | |
820 | nbytes_read += tlen; | |
821 | } | |
c5aa993b | 822 | done: |
c906108c SS |
823 | if (errnop != NULL) |
824 | *errnop = errcode; | |
825 | if (string != NULL) | |
826 | *string = buffer; | |
827 | return nbytes_read; | |
828 | } | |
829 | ||
8db32d44 AC |
830 | /* Find a section containing ADDR. */ |
831 | struct section_table * | |
832 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
833 | { | |
834 | struct section_table *secp; | |
835 | for (secp = target->to_sections; | |
836 | secp < target->to_sections_end; | |
837 | secp++) | |
838 | { | |
839 | if (addr >= secp->addr && addr < secp->endaddr) | |
840 | return secp; | |
841 | } | |
842 | return NULL; | |
843 | } | |
844 | ||
0779438d AC |
845 | /* Return non-zero when the target vector has supplied an xfer_partial |
846 | method and it, rather than xfer_memory, should be used. */ | |
847 | static int | |
848 | target_xfer_partial_p (void) | |
849 | { | |
850 | return (target_stack != NULL | |
851 | && target_stack->to_xfer_partial != default_xfer_partial); | |
852 | } | |
853 | ||
27394598 AC |
854 | static LONGEST |
855 | target_xfer_partial (struct target_ops *ops, | |
856 | enum target_object object, const char *annex, | |
857 | void *readbuf, const void *writebuf, | |
858 | ULONGEST offset, LONGEST len) | |
859 | { | |
860 | LONGEST retval; | |
861 | ||
862 | gdb_assert (ops->to_xfer_partial != NULL); | |
863 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, writebuf, | |
864 | offset, len); | |
865 | if (targetdebug) | |
866 | { | |
867 | const unsigned char *myaddr = NULL; | |
868 | ||
869 | fprintf_unfiltered (gdb_stdlog, | |
870 | "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s", | |
871 | ops->to_shortname, | |
872 | (int) object, | |
873 | (annex ? annex : "(null)"), | |
874 | (long) readbuf, (long) writebuf, | |
875 | paddr_nz (offset), paddr_d (len), paddr_d (retval)); | |
876 | ||
877 | if (readbuf) | |
878 | myaddr = readbuf; | |
879 | if (writebuf) | |
880 | myaddr = writebuf; | |
881 | if (retval > 0 && myaddr != NULL) | |
882 | { | |
883 | int i; | |
884 | ||
885 | fputs_unfiltered (", bytes =", gdb_stdlog); | |
886 | for (i = 0; i < retval; i++) | |
887 | { | |
888 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
889 | { | |
890 | if (targetdebug < 2 && i > 0) | |
891 | { | |
892 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
893 | break; | |
894 | } | |
895 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
896 | } | |
897 | ||
898 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); | |
899 | } | |
900 | } | |
901 | ||
902 | fputc_unfiltered ('\n', gdb_stdlog); | |
903 | } | |
904 | return retval; | |
905 | } | |
906 | ||
0779438d AC |
907 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
908 | inferior's KIND:ANNEX space and GDB's READBUF/WRITEBUF buffer. If | |
909 | the transfer succeeds, return zero, otherwize the host ERRNO is | |
910 | returned. | |
911 | ||
912 | The inferior is formed from several layers. In the case of | |
913 | corefiles, inf-corefile is layered above inf-exec and a request for | |
914 | text (corefiles do not include text pages) will be first sent to | |
915 | the core-stratum, fail, and then sent to the object-file where it | |
916 | will succeed. | |
917 | ||
918 | NOTE: cagney/2004-09-30: | |
919 | ||
920 | The old code tried to use four separate mechanisms for mapping an | |
921 | object:offset:len tuple onto an inferior and its address space: the | |
922 | target stack; the inferior's TO_SECTIONS; solib's SO_LIST; | |
923 | overlays. | |
924 | ||
925 | This is stupid. | |
926 | ||
927 | The code below is instead using a single mechanism (currently | |
928 | strata). If that mechanism proves insufficient then re-factor it | |
929 | implementing another singluar mechanism (for instance, a generic | |
930 | object:annex onto inferior:object:annex say). */ | |
931 | ||
cb85a953 | 932 | static LONGEST |
0779438d | 933 | xfer_using_stratum (enum target_object object, const char *annex, |
cb85a953 | 934 | ULONGEST offset, LONGEST len, void *readbuf, |
0779438d AC |
935 | const void *writebuf) |
936 | { | |
937 | LONGEST xfered; | |
938 | struct target_ops *target; | |
939 | ||
940 | /* Always successful. */ | |
941 | if (len == 0) | |
942 | return 0; | |
943 | /* Never successful. */ | |
944 | if (target_stack == NULL) | |
945 | return EIO; | |
946 | ||
947 | target = target_stack; | |
948 | while (1) | |
949 | { | |
27394598 | 950 | xfered = target_xfer_partial (target, object, annex, |
cb85a953 | 951 | readbuf, writebuf, offset, len); |
0779438d AC |
952 | if (xfered > 0) |
953 | { | |
954 | /* The partial xfer succeeded, update the counts, check that | |
955 | the xfer hasn't finished and if it hasn't set things up | |
956 | for the next round. */ | |
957 | len -= xfered; | |
958 | if (len <= 0) | |
959 | return 0; | |
cb85a953 AC |
960 | offset += xfered; |
961 | if (readbuf != NULL) | |
962 | readbuf = (bfd_byte *) readbuf + xfered; | |
963 | if (writebuf != NULL) | |
964 | writebuf = (bfd_byte *) writebuf + xfered; | |
0779438d AC |
965 | target = target_stack; |
966 | } | |
967 | else if (xfered < 0) | |
968 | { | |
969 | /* Something totally screwed up, abandon the attempt to | |
970 | xfer. */ | |
971 | if (errno) | |
972 | return errno; | |
973 | else | |
974 | return EIO; | |
975 | } | |
976 | else | |
977 | { | |
978 | /* This "stratum" didn't work, try the next one down. */ | |
979 | target = target->beneath; | |
980 | if (target == NULL) | |
981 | return EIO; | |
982 | } | |
983 | } | |
984 | } | |
985 | ||
c906108c SS |
986 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
987 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
988 | if any error occurs. | |
989 | ||
990 | If an error occurs, no guarantee is made about the contents of the data at | |
991 | MYADDR. In particular, the caller should not depend upon partial reads | |
992 | filling the buffer with good data. There is no way for the caller to know | |
993 | how much good data might have been transfered anyway. Callers that can | |
994 | deal with partial reads should call target_read_memory_partial. */ | |
995 | ||
996 | int | |
fba45db2 | 997 | target_read_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 998 | { |
0779438d AC |
999 | if (target_xfer_partial_p ()) |
1000 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
1001 | memaddr, len, myaddr, NULL); | |
1002 | else | |
1003 | return target_xfer_memory (memaddr, myaddr, len, 0); | |
c906108c SS |
1004 | } |
1005 | ||
c906108c | 1006 | int |
fba45db2 | 1007 | target_write_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1008 | { |
0779438d AC |
1009 | if (target_xfer_partial_p ()) |
1010 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
1011 | memaddr, len, NULL, myaddr); | |
1012 | else | |
1013 | return target_xfer_memory (memaddr, myaddr, len, 1); | |
c906108c | 1014 | } |
c5aa993b | 1015 | |
4aa7a7f5 JJ |
1016 | #ifndef target_stopped_data_address_p |
1017 | int | |
1018 | target_stopped_data_address_p (struct target_ops *target) | |
1019 | { | |
aa869812 AC |
1020 | if (target->to_stopped_data_address |
1021 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero) | |
4aa7a7f5 | 1022 | return 0; |
aa869812 AC |
1023 | if (target->to_stopped_data_address == debug_to_stopped_data_address |
1024 | && (debug_target.to_stopped_data_address | |
1025 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero)) | |
1026 | return 0; | |
1027 | return 1; | |
4aa7a7f5 JJ |
1028 | } |
1029 | #endif | |
1030 | ||
3a11626d MS |
1031 | static int trust_readonly = 0; |
1032 | ||
67e0617e C |
1033 | /* Move memory to or from the targets. The top target gets priority; |
1034 | if it cannot handle it, it is offered to the next one down, etc. | |
c906108c | 1035 | |
67e0617e | 1036 | Result is -1 on error, or the number of bytes transfered. */ |
c906108c | 1037 | |
4930751a | 1038 | int |
29e57380 C |
1039 | do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
1040 | struct mem_attrib *attrib) | |
c906108c | 1041 | { |
c906108c | 1042 | int res; |
4930751a | 1043 | int done = 0; |
c906108c | 1044 | struct target_ops *t; |
c906108c SS |
1045 | |
1046 | /* Zero length requests are ok and require no work. */ | |
1047 | if (len == 0) | |
1048 | return 0; | |
1049 | ||
c906108c SS |
1050 | /* to_xfer_memory is not guaranteed to set errno, even when it returns |
1051 | 0. */ | |
1052 | errno = 0; | |
1053 | ||
3a11626d MS |
1054 | if (!write && trust_readonly) |
1055 | { | |
8db32d44 | 1056 | struct section_table *secp; |
2ceb85d0 BE |
1057 | /* User-settable option, "trust-readonly-sections". If true, |
1058 | then memory from any SEC_READONLY bfd section may be read | |
8db32d44 AC |
1059 | directly from the bfd file. */ |
1060 | secp = target_section_by_addr (¤t_target, memaddr); | |
1061 | if (secp != NULL | |
1062 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1063 | & SEC_READONLY)) | |
1064 | return xfer_memory (memaddr, myaddr, len, 0, attrib, ¤t_target); | |
3a11626d MS |
1065 | } |
1066 | ||
67e0617e | 1067 | /* The quick case is that the top target can handle the transfer. */ |
c906108c | 1068 | res = current_target.to_xfer_memory |
29e57380 | 1069 | (memaddr, myaddr, len, write, attrib, ¤t_target); |
c906108c | 1070 | |
67e0617e C |
1071 | /* If res <= 0 then we call it again in the loop. Ah well. */ |
1072 | if (res <= 0) | |
c906108c | 1073 | { |
258b763a | 1074 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1075 | { |
c906108c SS |
1076 | if (!t->to_has_memory) |
1077 | continue; | |
1078 | ||
29e57380 | 1079 | res = t->to_xfer_memory (memaddr, myaddr, len, write, attrib, t); |
c906108c SS |
1080 | if (res > 0) |
1081 | break; /* Handled all or part of xfer */ | |
1082 | if (t->to_has_all_memory) | |
1083 | break; | |
1084 | } | |
1085 | ||
4930751a | 1086 | if (res <= 0) |
67e0617e | 1087 | return -1; |
4930751a | 1088 | } |
67e0617e C |
1089 | |
1090 | return res; | |
4930751a C |
1091 | } |
1092 | ||
67e0617e C |
1093 | |
1094 | /* Perform a memory transfer. Iterate until the entire region has | |
1095 | been transfered. | |
1096 | ||
1097 | Result is 0 or errno value. */ | |
1098 | ||
4930751a C |
1099 | static int |
1100 | target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write) | |
1101 | { | |
1102 | int res; | |
29e57380 C |
1103 | int reg_len; |
1104 | struct mem_region *region; | |
4930751a C |
1105 | |
1106 | /* Zero length requests are ok and require no work. */ | |
1107 | if (len == 0) | |
1108 | { | |
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | while (len > 0) | |
1113 | { | |
29e57380 C |
1114 | region = lookup_mem_region(memaddr); |
1115 | if (memaddr + len < region->hi) | |
1116 | reg_len = len; | |
1117 | else | |
1118 | reg_len = region->hi - memaddr; | |
1119 | ||
1120 | switch (region->attrib.mode) | |
c906108c | 1121 | { |
29e57380 C |
1122 | case MEM_RO: |
1123 | if (write) | |
1124 | return EIO; | |
1125 | break; | |
1126 | ||
1127 | case MEM_WO: | |
c906108c | 1128 | if (!write) |
c906108c | 1129 | return EIO; |
29e57380 | 1130 | break; |
c906108c | 1131 | } |
4930751a | 1132 | |
29e57380 C |
1133 | while (reg_len > 0) |
1134 | { | |
1135 | if (region->attrib.cache) | |
8add0441 | 1136 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, |
29e57380 C |
1137 | reg_len, write); |
1138 | else | |
8add0441 | 1139 | res = do_xfer_memory (memaddr, myaddr, reg_len, write, |
29e57380 C |
1140 | ®ion->attrib); |
1141 | ||
1142 | if (res <= 0) | |
1143 | { | |
1144 | /* If this address is for nonexistent memory, read zeros | |
1145 | if reading, or do nothing if writing. Return | |
1146 | error. */ | |
1147 | if (!write) | |
1148 | memset (myaddr, 0, len); | |
1149 | if (errno == 0) | |
1150 | return EIO; | |
1151 | else | |
1152 | return errno; | |
1153 | } | |
1154 | ||
1155 | memaddr += res; | |
1156 | myaddr += res; | |
1157 | len -= res; | |
1158 | reg_len -= res; | |
1159 | } | |
c906108c | 1160 | } |
4930751a | 1161 | |
c906108c SS |
1162 | return 0; /* We managed to cover it all somehow. */ |
1163 | } | |
1164 | ||
1165 | ||
67e0617e C |
1166 | /* Perform a partial memory transfer. |
1167 | ||
1168 | Result is -1 on error, or the number of bytes transfered. */ | |
917317f4 JM |
1169 | |
1170 | static int | |
4930751a | 1171 | target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len, |
917317f4 JM |
1172 | int write_p, int *err) |
1173 | { | |
1174 | int res; | |
29e57380 C |
1175 | int reg_len; |
1176 | struct mem_region *region; | |
917317f4 JM |
1177 | |
1178 | /* Zero length requests are ok and require no work. */ | |
1179 | if (len == 0) | |
1180 | { | |
1181 | *err = 0; | |
1182 | return 0; | |
1183 | } | |
1184 | ||
29e57380 C |
1185 | region = lookup_mem_region(memaddr); |
1186 | if (memaddr + len < region->hi) | |
1187 | reg_len = len; | |
1188 | else | |
1189 | reg_len = region->hi - memaddr; | |
1190 | ||
1191 | switch (region->attrib.mode) | |
1192 | { | |
1193 | case MEM_RO: | |
1194 | if (write_p) | |
1195 | { | |
1196 | *err = EIO; | |
873406a6 | 1197 | return -1; |
29e57380 C |
1198 | } |
1199 | break; | |
1200 | ||
1201 | case MEM_WO: | |
1202 | if (write_p) | |
1203 | { | |
1204 | *err = EIO; | |
873406a6 | 1205 | return -1; |
29e57380 C |
1206 | } |
1207 | break; | |
1208 | } | |
1209 | ||
1210 | if (region->attrib.cache) | |
1211 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, | |
1212 | reg_len, write_p); | |
1213 | else | |
1214 | res = do_xfer_memory (memaddr, myaddr, reg_len, write_p, | |
1215 | ®ion->attrib); | |
1216 | ||
4930751a | 1217 | if (res <= 0) |
917317f4 | 1218 | { |
4930751a C |
1219 | if (errno != 0) |
1220 | *err = errno; | |
1221 | else | |
1222 | *err = EIO; | |
917317f4 | 1223 | |
4930751a | 1224 | return -1; |
917317f4 JM |
1225 | } |
1226 | ||
4930751a | 1227 | *err = 0; |
67e0617e | 1228 | return res; |
917317f4 JM |
1229 | } |
1230 | ||
1231 | int | |
1232 | target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1233 | { | |
0779438d | 1234 | if (target_xfer_partial_p ()) |
27394598 AC |
1235 | return target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, NULL, |
1236 | buf, NULL, memaddr, len); | |
0779438d AC |
1237 | else |
1238 | return target_xfer_memory_partial (memaddr, buf, len, 0, err); | |
917317f4 JM |
1239 | } |
1240 | ||
1241 | int | |
1242 | target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1243 | { | |
0779438d | 1244 | if (target_xfer_partial_p ()) |
27394598 AC |
1245 | return target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, NULL, |
1246 | NULL, buf, memaddr, len); | |
0779438d AC |
1247 | else |
1248 | return target_xfer_memory_partial (memaddr, buf, len, 1, err); | |
917317f4 JM |
1249 | } |
1250 | ||
1e3ff5ad AC |
1251 | /* More generic transfers. */ |
1252 | ||
0088c768 | 1253 | static LONGEST |
8aa91c1e AC |
1254 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
1255 | const char *annex, void *readbuf, | |
1256 | const void *writebuf, ULONGEST offset, LONGEST len) | |
0088c768 AC |
1257 | { |
1258 | if (object == TARGET_OBJECT_MEMORY | |
1259 | && ops->to_xfer_memory != NULL) | |
1260 | /* If available, fall back to the target's "to_xfer_memory" | |
1261 | method. */ | |
1262 | { | |
4b8a223f | 1263 | int xfered = -1; |
0088c768 | 1264 | errno = 0; |
4b8a223f AC |
1265 | if (writebuf != NULL) |
1266 | { | |
1267 | void *buffer = xmalloc (len); | |
1268 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1269 | memcpy (buffer, writebuf, len); | |
1270 | xfered = ops->to_xfer_memory (offset, buffer, len, 1/*write*/, NULL, | |
1271 | ops); | |
1272 | do_cleanups (cleanup); | |
1273 | } | |
1274 | if (readbuf != NULL) | |
1275 | xfered = ops->to_xfer_memory (offset, readbuf, len, 0/*read*/, NULL, | |
0088c768 | 1276 | ops); |
0088c768 AC |
1277 | if (xfered > 0) |
1278 | return xfered; | |
1279 | else if (xfered == 0 && errno == 0) | |
1280 | /* "to_xfer_memory" uses 0, cross checked against ERRNO as one | |
1281 | indication of an error. */ | |
1282 | return 0; | |
1283 | else | |
1284 | return -1; | |
1285 | } | |
1286 | else if (ops->beneath != NULL) | |
27394598 AC |
1287 | return target_xfer_partial (ops->beneath, object, annex, |
1288 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1289 | else |
1290 | return -1; | |
1291 | } | |
1292 | ||
1293 | /* Target vector read/write partial wrapper functions. | |
1294 | ||
1295 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1296 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1297 | easier. */ | |
1298 | ||
1e3ff5ad AC |
1299 | LONGEST |
1300 | target_read_partial (struct target_ops *ops, | |
1301 | enum target_object object, | |
1302 | const char *annex, void *buf, | |
1303 | ULONGEST offset, LONGEST len) | |
1304 | { | |
27394598 | 1305 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1306 | } |
1307 | ||
1308 | LONGEST | |
1309 | target_write_partial (struct target_ops *ops, | |
1310 | enum target_object object, | |
1311 | const char *annex, const void *buf, | |
1312 | ULONGEST offset, LONGEST len) | |
1313 | { | |
27394598 | 1314 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1315 | } |
1316 | ||
1317 | /* Wrappers to perform the full transfer. */ | |
1318 | LONGEST | |
1319 | target_read (struct target_ops *ops, | |
1320 | enum target_object object, | |
1321 | const char *annex, void *buf, | |
1322 | ULONGEST offset, LONGEST len) | |
1323 | { | |
1324 | LONGEST xfered = 0; | |
1325 | while (xfered < len) | |
1326 | { | |
0088c768 AC |
1327 | LONGEST xfer = target_read_partial (ops, object, annex, |
1328 | (bfd_byte *) buf + xfered, | |
1329 | offset + xfered, len - xfered); | |
1e3ff5ad | 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 | ||
1340 | LONGEST | |
1341 | target_write (struct target_ops *ops, | |
1342 | enum target_object object, | |
1343 | const char *annex, const void *buf, | |
1344 | ULONGEST offset, LONGEST len) | |
1345 | { | |
1346 | LONGEST xfered = 0; | |
1347 | while (xfered < len) | |
1348 | { | |
1349 | LONGEST xfer = target_write_partial (ops, object, annex, | |
1350 | (bfd_byte *) buf + xfered, | |
1351 | offset + xfered, len - xfered); | |
1352 | /* Call an observer, notifying them of the xfer progress? */ | |
0088c768 AC |
1353 | if (xfer <= 0) |
1354 | /* Call memory_error? */ | |
1355 | return -1; | |
1e3ff5ad AC |
1356 | xfered += xfer; |
1357 | QUIT; | |
1358 | } | |
1359 | return len; | |
1360 | } | |
1361 | ||
b6591e8b AC |
1362 | /* Memory transfer methods. */ |
1363 | ||
1364 | void | |
1365 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, void *buf, | |
1366 | LONGEST len) | |
1367 | { | |
1368 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1369 | != len) | |
1370 | memory_error (EIO, addr); | |
1371 | } | |
1372 | ||
1373 | ULONGEST | |
1374 | get_target_memory_unsigned (struct target_ops *ops, | |
1375 | CORE_ADDR addr, int len) | |
1376 | { | |
1377 | char buf[sizeof (ULONGEST)]; | |
1378 | ||
1379 | gdb_assert (len <= sizeof (buf)); | |
1380 | get_target_memory (ops, addr, buf, len); | |
1381 | return extract_unsigned_integer (buf, len); | |
1382 | } | |
1383 | ||
c906108c | 1384 | static void |
fba45db2 | 1385 | target_info (char *args, int from_tty) |
c906108c SS |
1386 | { |
1387 | struct target_ops *t; | |
c906108c | 1388 | int has_all_mem = 0; |
c5aa993b | 1389 | |
c906108c SS |
1390 | if (symfile_objfile != NULL) |
1391 | printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name); | |
1392 | ||
258b763a | 1393 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1394 | { |
c906108c SS |
1395 | if (!t->to_has_memory) |
1396 | continue; | |
1397 | ||
c5aa993b | 1398 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1399 | continue; |
1400 | if (has_all_mem) | |
c5aa993b JM |
1401 | printf_unfiltered ("\tWhile running this, GDB does not access memory from...\n"); |
1402 | printf_unfiltered ("%s:\n", t->to_longname); | |
1403 | (t->to_files_info) (t); | |
c906108c SS |
1404 | has_all_mem = t->to_has_all_memory; |
1405 | } | |
1406 | } | |
1407 | ||
1408 | /* This is to be called by the open routine before it does | |
1409 | anything. */ | |
1410 | ||
1411 | void | |
fba45db2 | 1412 | target_preopen (int from_tty) |
c906108c | 1413 | { |
c5aa993b | 1414 | dont_repeat (); |
c906108c SS |
1415 | |
1416 | if (target_has_execution) | |
c5aa993b | 1417 | { |
adf40b2e JM |
1418 | if (!from_tty |
1419 | || query ("A program is being debugged already. Kill it? ")) | |
c5aa993b | 1420 | target_kill (); |
c906108c | 1421 | else |
c5aa993b | 1422 | error ("Program not killed."); |
c906108c SS |
1423 | } |
1424 | ||
1425 | /* Calling target_kill may remove the target from the stack. But if | |
1426 | it doesn't (which seems like a win for UDI), remove it now. */ | |
1427 | ||
1428 | if (target_has_execution) | |
1429 | pop_target (); | |
1430 | } | |
1431 | ||
1432 | /* Detach a target after doing deferred register stores. */ | |
1433 | ||
1434 | void | |
fba45db2 | 1435 | target_detach (char *args, int from_tty) |
c906108c | 1436 | { |
c906108c SS |
1437 | (current_target.to_detach) (args, from_tty); |
1438 | } | |
1439 | ||
6ad8ae5c DJ |
1440 | void |
1441 | target_disconnect (char *args, int from_tty) | |
1442 | { | |
6ad8ae5c DJ |
1443 | (current_target.to_disconnect) (args, from_tty); |
1444 | } | |
1445 | ||
c906108c | 1446 | void |
fba45db2 | 1447 | target_link (char *modname, CORE_ADDR *t_reloc) |
c906108c | 1448 | { |
cb137aa5 | 1449 | if (DEPRECATED_STREQ (current_target.to_shortname, "rombug")) |
c906108c SS |
1450 | { |
1451 | (current_target.to_lookup_symbol) (modname, t_reloc); | |
1452 | if (*t_reloc == 0) | |
c5aa993b | 1453 | error ("Unable to link to %s and get relocation in rombug", modname); |
c906108c SS |
1454 | } |
1455 | else | |
2acceee2 | 1456 | *t_reloc = (CORE_ADDR) -1; |
c906108c SS |
1457 | } |
1458 | ||
ed9a39eb JM |
1459 | int |
1460 | target_async_mask (int mask) | |
1461 | { | |
1462 | int saved_async_masked_status = target_async_mask_value; | |
1463 | target_async_mask_value = mask; | |
1464 | return saved_async_masked_status; | |
1465 | } | |
1466 | ||
c906108c SS |
1467 | /* Look through the list of possible targets for a target that can |
1468 | execute a run or attach command without any other data. This is | |
1469 | used to locate the default process stratum. | |
1470 | ||
1471 | Result is always valid (error() is called for errors). */ | |
1472 | ||
1473 | static struct target_ops * | |
fba45db2 | 1474 | find_default_run_target (char *do_mesg) |
c906108c SS |
1475 | { |
1476 | struct target_ops **t; | |
1477 | struct target_ops *runable = NULL; | |
1478 | int count; | |
1479 | ||
1480 | count = 0; | |
1481 | ||
1482 | for (t = target_structs; t < target_structs + target_struct_size; | |
1483 | ++t) | |
1484 | { | |
c5aa993b | 1485 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
1486 | { |
1487 | runable = *t; | |
1488 | ++count; | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | if (count != 1) | |
1493 | error ("Don't know how to %s. Try \"help target\".", do_mesg); | |
1494 | ||
1495 | return runable; | |
1496 | } | |
1497 | ||
1498 | void | |
fba45db2 | 1499 | find_default_attach (char *args, int from_tty) |
c906108c SS |
1500 | { |
1501 | struct target_ops *t; | |
1502 | ||
c5aa993b | 1503 | t = find_default_run_target ("attach"); |
c906108c SS |
1504 | (t->to_attach) (args, from_tty); |
1505 | return; | |
1506 | } | |
1507 | ||
c906108c | 1508 | void |
c27cda74 AC |
1509 | find_default_create_inferior (char *exec_file, char *allargs, char **env, |
1510 | int from_tty) | |
c906108c SS |
1511 | { |
1512 | struct target_ops *t; | |
1513 | ||
c5aa993b | 1514 | t = find_default_run_target ("run"); |
c27cda74 | 1515 | (t->to_create_inferior) (exec_file, allargs, env, from_tty); |
c906108c SS |
1516 | return; |
1517 | } | |
1518 | ||
ccaa32c7 GS |
1519 | static int |
1520 | default_region_size_ok_for_hw_watchpoint (int byte_count) | |
1521 | { | |
437b434f | 1522 | return (byte_count <= TYPE_LENGTH (builtin_type_void_data_ptr)); |
ccaa32c7 GS |
1523 | } |
1524 | ||
c906108c | 1525 | static int |
fba45db2 | 1526 | return_zero (void) |
c906108c SS |
1527 | { |
1528 | return 0; | |
1529 | } | |
1530 | ||
1531 | static int | |
fba45db2 | 1532 | return_one (void) |
c906108c SS |
1533 | { |
1534 | return 1; | |
1535 | } | |
1536 | ||
ccaa32c7 GS |
1537 | static int |
1538 | return_minus_one (void) | |
1539 | { | |
1540 | return -1; | |
1541 | } | |
1542 | ||
6426a772 JM |
1543 | /* |
1544 | * Resize the to_sections pointer. Also make sure that anyone that | |
1545 | * was holding on to an old value of it gets updated. | |
1546 | * Returns the old size. | |
1547 | */ | |
1548 | ||
1549 | int | |
1550 | target_resize_to_sections (struct target_ops *target, int num_added) | |
1551 | { | |
1552 | struct target_ops **t; | |
1553 | struct section_table *old_value; | |
1554 | int old_count; | |
1555 | ||
1556 | old_value = target->to_sections; | |
1557 | ||
1558 | if (target->to_sections) | |
1559 | { | |
1560 | old_count = target->to_sections_end - target->to_sections; | |
1561 | target->to_sections = (struct section_table *) | |
1562 | xrealloc ((char *) target->to_sections, | |
1563 | (sizeof (struct section_table)) * (num_added + old_count)); | |
1564 | } | |
1565 | else | |
1566 | { | |
1567 | old_count = 0; | |
1568 | target->to_sections = (struct section_table *) | |
1569 | xmalloc ((sizeof (struct section_table)) * num_added); | |
1570 | } | |
1571 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
1572 | ||
1573 | /* Check to see if anyone else was pointing to this structure. | |
1574 | If old_value was null, then no one was. */ | |
1575 | ||
1576 | if (old_value) | |
1577 | { | |
1578 | for (t = target_structs; t < target_structs + target_struct_size; | |
1579 | ++t) | |
1580 | { | |
1581 | if ((*t)->to_sections == old_value) | |
1582 | { | |
1583 | (*t)->to_sections = target->to_sections; | |
1584 | (*t)->to_sections_end = target->to_sections_end; | |
1585 | } | |
1586 | } | |
e354df01 NW |
1587 | /* There is a flattened view of the target stack in current_target, |
1588 | so its to_sections pointer might also need updating. */ | |
1589 | if (current_target.to_sections == old_value) | |
1590 | { | |
1591 | current_target.to_sections = target->to_sections; | |
1592 | current_target.to_sections_end = target->to_sections_end; | |
1593 | } | |
6426a772 JM |
1594 | } |
1595 | ||
1596 | return old_count; | |
1597 | ||
1598 | } | |
1599 | ||
07cd4b97 JB |
1600 | /* Remove all target sections taken from ABFD. |
1601 | ||
1602 | Scan the current target stack for targets whose section tables | |
1603 | refer to sections from BFD, and remove those sections. We use this | |
1604 | when we notice that the inferior has unloaded a shared object, for | |
1605 | example. */ | |
1606 | void | |
1607 | remove_target_sections (bfd *abfd) | |
1608 | { | |
1609 | struct target_ops **t; | |
1610 | ||
1611 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
1612 | { | |
1613 | struct section_table *src, *dest; | |
1614 | ||
1615 | dest = (*t)->to_sections; | |
1616 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
1617 | if (src->bfd != abfd) | |
1618 | { | |
1619 | /* Keep this section. */ | |
1620 | if (dest < src) *dest = *src; | |
1621 | dest++; | |
1622 | } | |
1623 | ||
1624 | /* If we've dropped any sections, resize the section table. */ | |
1625 | if (dest < src) | |
1626 | target_resize_to_sections (*t, dest - src); | |
1627 | } | |
1628 | } | |
1629 | ||
1630 | ||
1631 | ||
1632 | ||
7a292a7a SS |
1633 | /* Find a single runnable target in the stack and return it. If for |
1634 | some reason there is more than one, return NULL. */ | |
1635 | ||
1636 | struct target_ops * | |
fba45db2 | 1637 | find_run_target (void) |
7a292a7a SS |
1638 | { |
1639 | struct target_ops **t; | |
1640 | struct target_ops *runable = NULL; | |
1641 | int count; | |
c5aa993b | 1642 | |
7a292a7a | 1643 | count = 0; |
c5aa993b | 1644 | |
7a292a7a SS |
1645 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
1646 | { | |
c5aa993b | 1647 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
1648 | { |
1649 | runable = *t; | |
1650 | ++count; | |
1651 | } | |
1652 | } | |
c5aa993b | 1653 | |
7a292a7a SS |
1654 | return (count == 1 ? runable : NULL); |
1655 | } | |
1656 | ||
ed9a39eb JM |
1657 | /* Find a single core_stratum target in the list of targets and return it. |
1658 | If for some reason there is more than one, return NULL. */ | |
1659 | ||
c906108c | 1660 | struct target_ops * |
fba45db2 | 1661 | find_core_target (void) |
c906108c SS |
1662 | { |
1663 | struct target_ops **t; | |
1664 | struct target_ops *runable = NULL; | |
1665 | int count; | |
c5aa993b | 1666 | |
c906108c | 1667 | count = 0; |
c5aa993b | 1668 | |
c906108c SS |
1669 | for (t = target_structs; t < target_structs + target_struct_size; |
1670 | ++t) | |
1671 | { | |
1672 | if ((*t)->to_stratum == core_stratum) | |
1673 | { | |
1674 | runable = *t; | |
1675 | ++count; | |
1676 | } | |
1677 | } | |
c5aa993b JM |
1678 | |
1679 | return (count == 1 ? runable : NULL); | |
c906108c | 1680 | } |
ed9a39eb JM |
1681 | |
1682 | /* | |
1683 | * Find the next target down the stack from the specified target. | |
1684 | */ | |
1685 | ||
1686 | struct target_ops * | |
fba45db2 | 1687 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 1688 | { |
258b763a | 1689 | return t->beneath; |
ed9a39eb JM |
1690 | } |
1691 | ||
c906108c SS |
1692 | \f |
1693 | /* The inferior process has died. Long live the inferior! */ | |
1694 | ||
1695 | void | |
fba45db2 | 1696 | generic_mourn_inferior (void) |
c906108c SS |
1697 | { |
1698 | extern int show_breakpoint_hit_counts; | |
1699 | ||
39f77062 | 1700 | inferior_ptid = null_ptid; |
c906108c SS |
1701 | attach_flag = 0; |
1702 | breakpoint_init_inferior (inf_exited); | |
1703 | registers_changed (); | |
1704 | ||
c906108c SS |
1705 | reopen_exec_file (); |
1706 | reinit_frame_cache (); | |
1707 | ||
1708 | /* It is confusing to the user for ignore counts to stick around | |
1709 | from previous runs of the inferior. So clear them. */ | |
1710 | /* However, it is more confusing for the ignore counts to disappear when | |
1711 | using hit counts. So don't clear them if we're counting hits. */ | |
1712 | if (!show_breakpoint_hit_counts) | |
1713 | breakpoint_clear_ignore_counts (); | |
c5b739b5 | 1714 | |
9a4105ab AC |
1715 | if (deprecated_detach_hook) |
1716 | deprecated_detach_hook (); | |
c906108c SS |
1717 | } |
1718 | \f | |
c906108c SS |
1719 | /* Helper function for child_wait and the Lynx derivatives of child_wait. |
1720 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our | |
1721 | translation of that in OURSTATUS. */ | |
1722 | void | |
fba45db2 | 1723 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c SS |
1724 | { |
1725 | #ifdef CHILD_SPECIAL_WAITSTATUS | |
1726 | /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS | |
1727 | if it wants to deal with hoststatus. */ | |
1728 | if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) | |
1729 | return; | |
1730 | #endif | |
1731 | ||
1732 | if (WIFEXITED (hoststatus)) | |
1733 | { | |
1734 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1735 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
1736 | } | |
1737 | else if (!WIFSTOPPED (hoststatus)) | |
1738 | { | |
1739 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1740 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
1741 | } | |
1742 | else | |
1743 | { | |
1744 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1745 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
1746 | } | |
1747 | } | |
1748 | \f | |
c906108c | 1749 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 1750 | int (*target_activity_function) (void); |
c906108c SS |
1751 | int target_activity_fd; |
1752 | \f | |
1753 | /* Convert a normal process ID to a string. Returns the string in a static | |
1754 | buffer. */ | |
1755 | ||
1756 | char * | |
39f77062 | 1757 | normal_pid_to_str (ptid_t ptid) |
c906108c SS |
1758 | { |
1759 | static char buf[30]; | |
1760 | ||
39f77062 | 1761 | sprintf (buf, "process %d", PIDGET (ptid)); |
c906108c SS |
1762 | return buf; |
1763 | } | |
1764 | ||
be4d1333 | 1765 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
1766 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
1767 | { | |
1768 | error ("No target."); | |
1769 | return 0; | |
1770 | } | |
1771 | ||
1772 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
1773 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
1774 | { | |
1775 | error ("No target."); | |
1776 | return NULL; | |
1777 | } | |
1778 | ||
c906108c SS |
1779 | /* Set up the handful of non-empty slots needed by the dummy target |
1780 | vector. */ | |
1781 | ||
1782 | static void | |
fba45db2 | 1783 | init_dummy_target (void) |
c906108c SS |
1784 | { |
1785 | dummy_target.to_shortname = "None"; | |
1786 | dummy_target.to_longname = "None"; | |
1787 | dummy_target.to_doc = ""; | |
1788 | dummy_target.to_attach = find_default_attach; | |
c906108c | 1789 | dummy_target.to_create_inferior = find_default_create_inferior; |
ed9a39eb | 1790 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 1791 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
1792 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
1793 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 1794 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
1795 | dummy_target.to_magic = OPS_MAGIC; |
1796 | } | |
c906108c | 1797 | \f |
c906108c | 1798 | static void |
fba45db2 | 1799 | debug_to_open (char *args, int from_tty) |
c906108c SS |
1800 | { |
1801 | debug_target.to_open (args, from_tty); | |
1802 | ||
96baa820 | 1803 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
1804 | } |
1805 | ||
1806 | static void | |
fba45db2 | 1807 | debug_to_close (int quitting) |
c906108c | 1808 | { |
f1c07ab0 | 1809 | target_close (&debug_target, quitting); |
96baa820 | 1810 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
1811 | } |
1812 | ||
f1c07ab0 AC |
1813 | void |
1814 | target_close (struct target_ops *targ, int quitting) | |
1815 | { | |
1816 | if (targ->to_xclose != NULL) | |
1817 | targ->to_xclose (targ, quitting); | |
1818 | else if (targ->to_close != NULL) | |
1819 | targ->to_close (quitting); | |
1820 | } | |
1821 | ||
c906108c | 1822 | static void |
fba45db2 | 1823 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
1824 | { |
1825 | debug_target.to_attach (args, from_tty); | |
1826 | ||
96baa820 | 1827 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
1828 | } |
1829 | ||
1830 | ||
1831 | static void | |
fba45db2 | 1832 | debug_to_post_attach (int pid) |
c906108c SS |
1833 | { |
1834 | debug_target.to_post_attach (pid); | |
1835 | ||
96baa820 | 1836 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
1837 | } |
1838 | ||
c906108c | 1839 | static void |
fba45db2 | 1840 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
1841 | { |
1842 | debug_target.to_detach (args, from_tty); | |
1843 | ||
96baa820 | 1844 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
1845 | } |
1846 | ||
6ad8ae5c DJ |
1847 | static void |
1848 | debug_to_disconnect (char *args, int from_tty) | |
1849 | { | |
1850 | debug_target.to_disconnect (args, from_tty); | |
1851 | ||
1852 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1853 | args, from_tty); | |
1854 | } | |
1855 | ||
c906108c | 1856 | static void |
39f77062 | 1857 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 1858 | { |
39f77062 | 1859 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 1860 | |
39f77062 | 1861 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
1862 | step ? "step" : "continue", |
1863 | target_signal_to_name (siggnal)); | |
1864 | } | |
1865 | ||
39f77062 KB |
1866 | static ptid_t |
1867 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 1868 | { |
39f77062 | 1869 | ptid_t retval; |
c906108c | 1870 | |
39f77062 | 1871 | retval = debug_target.to_wait (ptid, status); |
c906108c | 1872 | |
96baa820 | 1873 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
1874 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
1875 | PIDGET (retval)); | |
96baa820 | 1876 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
1877 | switch (status->kind) |
1878 | { | |
1879 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 1880 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
1881 | status->value.integer); |
1882 | break; | |
1883 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 1884 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
1885 | target_signal_to_name (status->value.sig)); |
1886 | break; | |
1887 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 1888 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
1889 | target_signal_to_name (status->value.sig)); |
1890 | break; | |
1891 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 1892 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
1893 | break; |
1894 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 1895 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
1896 | break; |
1897 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 1898 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
1899 | break; |
1900 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 1901 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
1902 | break; |
1903 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 1904 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
1905 | break; |
1906 | default: | |
96baa820 | 1907 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
1908 | break; |
1909 | } | |
1910 | ||
1911 | return retval; | |
1912 | } | |
1913 | ||
bf0c5130 AC |
1914 | static void |
1915 | debug_print_register (const char * func, int regno) | |
1916 | { | |
1917 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1918 | if (regno >= 0 && regno < NUM_REGS + NUM_PSEUDO_REGS | |
1919 | && REGISTER_NAME (regno) != NULL && REGISTER_NAME (regno)[0] != '\0') | |
1920 | fprintf_unfiltered (gdb_stdlog, "(%s)", REGISTER_NAME (regno)); | |
1921 | else | |
1922 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1923 | if (regno >= 0) | |
1924 | { | |
1925 | int i; | |
d9d9c31f | 1926 | unsigned char buf[MAX_REGISTER_SIZE]; |
4caf0990 | 1927 | deprecated_read_register_gen (regno, buf); |
bf0c5130 | 1928 | fprintf_unfiltered (gdb_stdlog, " = "); |
3acba339 | 1929 | for (i = 0; i < register_size (current_gdbarch, regno); i++) |
bf0c5130 AC |
1930 | { |
1931 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1932 | } | |
3acba339 | 1933 | if (register_size (current_gdbarch, regno) <= sizeof (LONGEST)) |
bf0c5130 AC |
1934 | { |
1935 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", | |
1936 | paddr_nz (read_register (regno)), | |
1937 | paddr_d (read_register (regno))); | |
1938 | } | |
1939 | } | |
1940 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1941 | } | |
1942 | ||
c906108c | 1943 | static void |
fba45db2 | 1944 | debug_to_fetch_registers (int regno) |
c906108c SS |
1945 | { |
1946 | debug_target.to_fetch_registers (regno); | |
bf0c5130 | 1947 | debug_print_register ("target_fetch_registers", regno); |
c906108c SS |
1948 | } |
1949 | ||
1950 | static void | |
fba45db2 | 1951 | debug_to_store_registers (int regno) |
c906108c SS |
1952 | { |
1953 | debug_target.to_store_registers (regno); | |
bf0c5130 AC |
1954 | debug_print_register ("target_store_registers", regno); |
1955 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c906108c SS |
1956 | } |
1957 | ||
1958 | static void | |
fba45db2 | 1959 | debug_to_prepare_to_store (void) |
c906108c SS |
1960 | { |
1961 | debug_target.to_prepare_to_store (); | |
1962 | ||
96baa820 | 1963 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
1964 | } |
1965 | ||
1966 | static int | |
fba45db2 | 1967 | debug_to_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
29e57380 | 1968 | struct mem_attrib *attrib, |
fba45db2 | 1969 | struct target_ops *target) |
c906108c SS |
1970 | { |
1971 | int retval; | |
1972 | ||
29e57380 C |
1973 | retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write, |
1974 | attrib, target); | |
c906108c | 1975 | |
96baa820 | 1976 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 1977 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 1978 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
1979 | len, write ? "write" : "read", retval); |
1980 | ||
c906108c SS |
1981 | if (retval > 0) |
1982 | { | |
1983 | int i; | |
1984 | ||
96baa820 | 1985 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
1986 | for (i = 0; i < retval; i++) |
1987 | { | |
1988 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
333dabeb DJ |
1989 | { |
1990 | if (targetdebug < 2 && i > 0) | |
1991 | { | |
1992 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1993 | break; | |
1994 | } | |
1995 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1996 | } | |
1997 | ||
96baa820 | 1998 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
1999 | } |
2000 | } | |
2001 | ||
96baa820 | 2002 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
2003 | |
2004 | return retval; | |
2005 | } | |
2006 | ||
2007 | static void | |
fba45db2 | 2008 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
2009 | { |
2010 | debug_target.to_files_info (target); | |
2011 | ||
96baa820 | 2012 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
2013 | } |
2014 | ||
2015 | static int | |
fba45db2 | 2016 | debug_to_insert_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
2017 | { |
2018 | int retval; | |
2019 | ||
2020 | retval = debug_target.to_insert_breakpoint (addr, save); | |
2021 | ||
96baa820 | 2022 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
2023 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
2024 | (unsigned long) addr, | |
2025 | (unsigned long) retval); | |
c906108c SS |
2026 | return retval; |
2027 | } | |
2028 | ||
2029 | static int | |
fba45db2 | 2030 | debug_to_remove_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
2031 | { |
2032 | int retval; | |
2033 | ||
2034 | retval = debug_target.to_remove_breakpoint (addr, save); | |
2035 | ||
96baa820 | 2036 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
2037 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
2038 | (unsigned long) addr, | |
2039 | (unsigned long) retval); | |
c906108c SS |
2040 | return retval; |
2041 | } | |
2042 | ||
ccaa32c7 GS |
2043 | static int |
2044 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2045 | { | |
2046 | int retval; | |
2047 | ||
2048 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2049 | ||
2050 | fprintf_unfiltered (gdb_stdlog, | |
2051 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2052 | (unsigned long) type, | |
2053 | (unsigned long) cnt, | |
2054 | (unsigned long) from_tty, | |
2055 | (unsigned long) retval); | |
2056 | return retval; | |
2057 | } | |
2058 | ||
2059 | static int | |
2060 | debug_to_region_size_ok_for_hw_watchpoint (int byte_count) | |
2061 | { | |
2062 | CORE_ADDR retval; | |
2063 | ||
2064 | retval = debug_target.to_region_size_ok_for_hw_watchpoint (byte_count); | |
2065 | ||
2066 | fprintf_unfiltered (gdb_stdlog, | |
2067 | "TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT (%ld) = 0x%lx\n", | |
2068 | (unsigned long) byte_count, | |
2069 | (unsigned long) retval); | |
2070 | return retval; | |
2071 | } | |
2072 | ||
2073 | static int | |
2074 | debug_to_stopped_by_watchpoint (void) | |
2075 | { | |
2076 | int retval; | |
2077 | ||
2078 | retval = debug_target.to_stopped_by_watchpoint (); | |
2079 | ||
2080 | fprintf_unfiltered (gdb_stdlog, | |
2081 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
2082 | (unsigned long) retval); | |
2083 | return retval; | |
2084 | } | |
2085 | ||
4aa7a7f5 JJ |
2086 | static int |
2087 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 2088 | { |
4aa7a7f5 | 2089 | int retval; |
ccaa32c7 | 2090 | |
4aa7a7f5 | 2091 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
2092 | |
2093 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
2094 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
2095 | (unsigned long)*addr, | |
2096 | (unsigned long)retval); | |
ccaa32c7 GS |
2097 | return retval; |
2098 | } | |
2099 | ||
2100 | static int | |
2101 | debug_to_insert_hw_breakpoint (CORE_ADDR addr, char *save) | |
2102 | { | |
2103 | int retval; | |
2104 | ||
2105 | retval = debug_target.to_insert_hw_breakpoint (addr, save); | |
2106 | ||
2107 | fprintf_unfiltered (gdb_stdlog, | |
2108 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
2109 | (unsigned long) addr, | |
2110 | (unsigned long) retval); | |
2111 | return retval; | |
2112 | } | |
2113 | ||
2114 | static int | |
2115 | debug_to_remove_hw_breakpoint (CORE_ADDR addr, char *save) | |
2116 | { | |
2117 | int retval; | |
2118 | ||
2119 | retval = debug_target.to_remove_hw_breakpoint (addr, save); | |
2120 | ||
2121 | fprintf_unfiltered (gdb_stdlog, | |
2122 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
2123 | (unsigned long) addr, | |
2124 | (unsigned long) retval); | |
2125 | return retval; | |
2126 | } | |
2127 | ||
2128 | static int | |
2129 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2130 | { | |
2131 | int retval; | |
2132 | ||
2133 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2134 | ||
2135 | fprintf_unfiltered (gdb_stdlog, | |
2136 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2137 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2138 | return retval; | |
2139 | } | |
2140 | ||
2141 | static int | |
2142 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2143 | { | |
2144 | int retval; | |
2145 | ||
2146 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2147 | ||
2148 | fprintf_unfiltered (gdb_stdlog, | |
2149 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2150 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2151 | return retval; | |
2152 | } | |
2153 | ||
c906108c | 2154 | static void |
fba45db2 | 2155 | debug_to_terminal_init (void) |
c906108c SS |
2156 | { |
2157 | debug_target.to_terminal_init (); | |
2158 | ||
96baa820 | 2159 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2160 | } |
2161 | ||
2162 | static void | |
fba45db2 | 2163 | debug_to_terminal_inferior (void) |
c906108c SS |
2164 | { |
2165 | debug_target.to_terminal_inferior (); | |
2166 | ||
96baa820 | 2167 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2168 | } |
2169 | ||
2170 | static void | |
fba45db2 | 2171 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2172 | { |
2173 | debug_target.to_terminal_ours_for_output (); | |
2174 | ||
96baa820 | 2175 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2176 | } |
2177 | ||
2178 | static void | |
fba45db2 | 2179 | debug_to_terminal_ours (void) |
c906108c SS |
2180 | { |
2181 | debug_target.to_terminal_ours (); | |
2182 | ||
96baa820 | 2183 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2184 | } |
2185 | ||
a790ad35 SC |
2186 | static void |
2187 | debug_to_terminal_save_ours (void) | |
2188 | { | |
2189 | debug_target.to_terminal_save_ours (); | |
2190 | ||
2191 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2192 | } | |
2193 | ||
c906108c | 2194 | static void |
fba45db2 | 2195 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2196 | { |
2197 | debug_target.to_terminal_info (arg, from_tty); | |
2198 | ||
96baa820 | 2199 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2200 | from_tty); |
2201 | } | |
2202 | ||
2203 | static void | |
fba45db2 | 2204 | debug_to_kill (void) |
c906108c SS |
2205 | { |
2206 | debug_target.to_kill (); | |
2207 | ||
96baa820 | 2208 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2209 | } |
2210 | ||
2211 | static void | |
fba45db2 | 2212 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2213 | { |
2214 | debug_target.to_load (args, from_tty); | |
2215 | ||
96baa820 | 2216 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2217 | } |
2218 | ||
2219 | static int | |
fba45db2 | 2220 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2221 | { |
2222 | int retval; | |
2223 | ||
2224 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2225 | ||
96baa820 | 2226 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2227 | |
2228 | return retval; | |
2229 | } | |
2230 | ||
2231 | static void | |
c27cda74 AC |
2232 | debug_to_create_inferior (char *exec_file, char *args, char **env, |
2233 | int from_tty) | |
c906108c | 2234 | { |
c27cda74 | 2235 | debug_target.to_create_inferior (exec_file, args, env, from_tty); |
c906108c | 2236 | |
c27cda74 AC |
2237 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx, %d)\n", |
2238 | exec_file, args, from_tty); | |
c906108c SS |
2239 | } |
2240 | ||
2241 | static void | |
39f77062 | 2242 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2243 | { |
39f77062 | 2244 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2245 | |
96baa820 | 2246 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2247 | PIDGET (ptid)); |
c906108c SS |
2248 | } |
2249 | ||
2250 | static void | |
fba45db2 | 2251 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2252 | { |
2253 | debug_target.to_acknowledge_created_inferior (pid); | |
2254 | ||
96baa820 | 2255 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2256 | pid); |
2257 | } | |
2258 | ||
c906108c | 2259 | static int |
fba45db2 | 2260 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2261 | { |
c5aa993b | 2262 | int retval; |
c906108c SS |
2263 | |
2264 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
2265 | ||
96baa820 | 2266 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2267 | pid, retval); |
c906108c SS |
2268 | |
2269 | return retval; | |
2270 | } | |
2271 | ||
2272 | static int | |
fba45db2 | 2273 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2274 | { |
c5aa993b | 2275 | int retval; |
c906108c SS |
2276 | |
2277 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2278 | ||
96baa820 | 2279 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2280 | pid, retval); |
c906108c SS |
2281 | |
2282 | return retval; | |
2283 | } | |
2284 | ||
2285 | static int | |
fba45db2 | 2286 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2287 | { |
c5aa993b | 2288 | int retval; |
c906108c SS |
2289 | |
2290 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
2291 | ||
96baa820 | 2292 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)= %d\n", |
c5aa993b | 2293 | pid, retval); |
c906108c SS |
2294 | |
2295 | return retval; | |
2296 | } | |
2297 | ||
2298 | static int | |
fba45db2 | 2299 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2300 | { |
c5aa993b | 2301 | int retval; |
c906108c SS |
2302 | |
2303 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2304 | ||
96baa820 | 2305 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2306 | pid, retval); |
c906108c SS |
2307 | |
2308 | return retval; | |
2309 | } | |
2310 | ||
6604731b DJ |
2311 | static int |
2312 | debug_to_follow_fork (int follow_child) | |
c906108c | 2313 | { |
6604731b | 2314 | int retval = debug_target.to_follow_fork (follow_child); |
c906108c | 2315 | |
6604731b DJ |
2316 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", |
2317 | follow_child, retval); | |
2318 | ||
2319 | return retval; | |
c906108c SS |
2320 | } |
2321 | ||
2322 | static int | |
fba45db2 | 2323 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2324 | { |
c5aa993b | 2325 | int retval; |
c906108c SS |
2326 | |
2327 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
2328 | ||
96baa820 | 2329 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2330 | pid, retval); |
c906108c SS |
2331 | |
2332 | return retval; | |
2333 | } | |
2334 | ||
2335 | static int | |
fba45db2 | 2336 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2337 | { |
c5aa993b | 2338 | int retval; |
c906108c SS |
2339 | |
2340 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2341 | ||
96baa820 | 2342 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2343 | pid, retval); |
c906108c SS |
2344 | |
2345 | return retval; | |
2346 | } | |
2347 | ||
c906108c | 2348 | static int |
fba45db2 | 2349 | debug_to_reported_exec_events_per_exec_call (void) |
c906108c | 2350 | { |
c5aa993b | 2351 | int reported_exec_events; |
c906108c SS |
2352 | |
2353 | reported_exec_events = debug_target.to_reported_exec_events_per_exec_call (); | |
2354 | ||
96baa820 | 2355 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2356 | "target_reported_exec_events_per_exec_call () = %d\n", |
c5aa993b | 2357 | reported_exec_events); |
c906108c SS |
2358 | |
2359 | return reported_exec_events; | |
2360 | } | |
2361 | ||
c906108c | 2362 | static int |
fba45db2 | 2363 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2364 | { |
c5aa993b | 2365 | int has_exited; |
c906108c SS |
2366 | |
2367 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2368 | ||
96baa820 | 2369 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2370 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2371 | |
2372 | return has_exited; | |
2373 | } | |
2374 | ||
2375 | static void | |
fba45db2 | 2376 | debug_to_mourn_inferior (void) |
c906108c SS |
2377 | { |
2378 | debug_target.to_mourn_inferior (); | |
2379 | ||
96baa820 | 2380 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2381 | } |
2382 | ||
2383 | static int | |
fba45db2 | 2384 | debug_to_can_run (void) |
c906108c SS |
2385 | { |
2386 | int retval; | |
2387 | ||
2388 | retval = debug_target.to_can_run (); | |
2389 | ||
96baa820 | 2390 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
2391 | |
2392 | return retval; | |
2393 | } | |
2394 | ||
2395 | static void | |
39f77062 | 2396 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 2397 | { |
39f77062 | 2398 | debug_target.to_notice_signals (ptid); |
c906108c | 2399 | |
39f77062 KB |
2400 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
2401 | PIDGET (ptid)); | |
c906108c SS |
2402 | } |
2403 | ||
2404 | static int | |
39f77062 | 2405 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
2406 | { |
2407 | int retval; | |
2408 | ||
39f77062 | 2409 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 2410 | |
96baa820 | 2411 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 2412 | PIDGET (ptid), retval); |
c906108c SS |
2413 | |
2414 | return retval; | |
2415 | } | |
2416 | ||
0d06e24b | 2417 | static void |
fba45db2 | 2418 | debug_to_find_new_threads (void) |
0d06e24b JM |
2419 | { |
2420 | debug_target.to_find_new_threads (); | |
2421 | ||
2422 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
2423 | } | |
2424 | ||
c906108c | 2425 | static void |
fba45db2 | 2426 | debug_to_stop (void) |
c906108c SS |
2427 | { |
2428 | debug_target.to_stop (); | |
2429 | ||
96baa820 | 2430 | fprintf_unfiltered (gdb_stdlog, "target_stop ()\n"); |
c906108c SS |
2431 | } |
2432 | ||
96baa820 JM |
2433 | static void |
2434 | debug_to_rcmd (char *command, | |
d9fcf2fb | 2435 | struct ui_file *outbuf) |
96baa820 JM |
2436 | { |
2437 | debug_target.to_rcmd (command, outbuf); | |
2438 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
2439 | } | |
2440 | ||
c906108c | 2441 | static struct symtab_and_line * |
fba45db2 | 2442 | debug_to_enable_exception_callback (enum exception_event_kind kind, int enable) |
c906108c | 2443 | { |
7a292a7a SS |
2444 | struct symtab_and_line *result; |
2445 | result = debug_target.to_enable_exception_callback (kind, enable); | |
96baa820 | 2446 | fprintf_unfiltered (gdb_stdlog, |
c906108c SS |
2447 | "target get_exception_callback_sal (%d, %d)\n", |
2448 | kind, enable); | |
7a292a7a | 2449 | return result; |
c906108c SS |
2450 | } |
2451 | ||
2452 | static struct exception_event_record * | |
fba45db2 | 2453 | debug_to_get_current_exception_event (void) |
c906108c | 2454 | { |
7a292a7a | 2455 | struct exception_event_record *result; |
c5aa993b | 2456 | result = debug_target.to_get_current_exception_event (); |
96baa820 | 2457 | fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n"); |
7a292a7a | 2458 | return result; |
c906108c SS |
2459 | } |
2460 | ||
2461 | static char * | |
fba45db2 | 2462 | debug_to_pid_to_exec_file (int pid) |
c906108c | 2463 | { |
c5aa993b | 2464 | char *exec_file; |
c906108c SS |
2465 | |
2466 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
2467 | ||
96baa820 | 2468 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 2469 | pid, exec_file); |
c906108c SS |
2470 | |
2471 | return exec_file; | |
2472 | } | |
2473 | ||
c906108c | 2474 | static void |
fba45db2 | 2475 | setup_target_debug (void) |
c906108c SS |
2476 | { |
2477 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
2478 | ||
2479 | current_target.to_open = debug_to_open; | |
2480 | current_target.to_close = debug_to_close; | |
2481 | current_target.to_attach = debug_to_attach; | |
2482 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 2483 | current_target.to_detach = debug_to_detach; |
6ad8ae5c | 2484 | current_target.to_disconnect = debug_to_disconnect; |
c906108c SS |
2485 | current_target.to_resume = debug_to_resume; |
2486 | current_target.to_wait = debug_to_wait; | |
c906108c SS |
2487 | current_target.to_fetch_registers = debug_to_fetch_registers; |
2488 | current_target.to_store_registers = debug_to_store_registers; | |
2489 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
2490 | current_target.to_xfer_memory = debug_to_xfer_memory; | |
2491 | current_target.to_files_info = debug_to_files_info; | |
2492 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
2493 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
2494 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
2495 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
2496 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
2497 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
2498 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
2499 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
2500 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
2501 | current_target.to_region_size_ok_for_hw_watchpoint = debug_to_region_size_ok_for_hw_watchpoint; | |
c906108c SS |
2502 | current_target.to_terminal_init = debug_to_terminal_init; |
2503 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
2504 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
2505 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 2506 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
2507 | current_target.to_terminal_info = debug_to_terminal_info; |
2508 | current_target.to_kill = debug_to_kill; | |
2509 | current_target.to_load = debug_to_load; | |
2510 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
2511 | current_target.to_create_inferior = debug_to_create_inferior; | |
2512 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
2513 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
2514 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
2515 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
2516 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
2517 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
6604731b | 2518 | current_target.to_follow_fork = debug_to_follow_fork; |
c906108c SS |
2519 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
2520 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 2521 | current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call; |
c906108c SS |
2522 | current_target.to_has_exited = debug_to_has_exited; |
2523 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
2524 | current_target.to_can_run = debug_to_can_run; | |
2525 | current_target.to_notice_signals = debug_to_notice_signals; | |
2526 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 2527 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 2528 | current_target.to_stop = debug_to_stop; |
96baa820 | 2529 | current_target.to_rcmd = debug_to_rcmd; |
c906108c SS |
2530 | current_target.to_enable_exception_callback = debug_to_enable_exception_callback; |
2531 | current_target.to_get_current_exception_event = debug_to_get_current_exception_event; | |
2532 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; | |
c906108c SS |
2533 | |
2534 | } | |
c906108c | 2535 | \f |
c5aa993b JM |
2536 | |
2537 | static char targ_desc[] = | |
2538 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
2539 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
2540 | core-file, and process, if any), as well as the symbol file name."; | |
2541 | ||
96baa820 JM |
2542 | static void |
2543 | do_monitor_command (char *cmd, | |
2544 | int from_tty) | |
2545 | { | |
2b5fe715 AC |
2546 | if ((current_target.to_rcmd |
2547 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 2548 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
2549 | && (debug_target.to_rcmd |
2550 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
96baa820 JM |
2551 | { |
2552 | error ("\"monitor\" command not supported by this target.\n"); | |
2553 | } | |
2554 | target_rcmd (cmd, gdb_stdtarg); | |
2555 | } | |
2556 | ||
c906108c | 2557 | void |
fba45db2 | 2558 | initialize_targets (void) |
c906108c SS |
2559 | { |
2560 | init_dummy_target (); | |
2561 | push_target (&dummy_target); | |
2562 | ||
2563 | add_info ("target", target_info, targ_desc); | |
2564 | add_info ("files", target_info, targ_desc); | |
2565 | ||
cb1a6d5f | 2566 | deprecated_add_show_from_set |
3a11626d MS |
2567 | (add_set_cmd ("target", class_maintenance, var_zinteger, |
2568 | (char *) &targetdebug, | |
2569 | "Set target debugging.\n\ | |
333dabeb DJ |
2570 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
2571 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
2572 | command.", &setdebuglist), | |
3a11626d MS |
2573 | &showdebuglist); |
2574 | ||
e707bbc2 AC |
2575 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
2576 | &trust_readonly, "\ | |
3b64bf98 AC |
2577 | Set mode for reading from readonly sections.", "\ |
2578 | Show mode for reading from readonly sections.", "\ | |
3a11626d MS |
2579 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
2580 | will be read from the object file instead of from the target. This will\n\ | |
e707bbc2 | 2581 | result in significant performance improvement for remote targets.", "\ |
3b64bf98 | 2582 | Mode for reading from readonly sections is %s.", |
e707bbc2 AC |
2583 | NULL, NULL, |
2584 | &setlist, &showlist); | |
96baa820 JM |
2585 | |
2586 | add_com ("monitor", class_obscure, do_monitor_command, | |
2587 | "Send a command to the remote monitor (remote targets only)."); | |
2588 | ||
8add0441 | 2589 | target_dcache = dcache_init (); |
c906108c | 2590 | } |