Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 AC |
2 | |
3 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, | |
4 | 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. | |
5 | ||
c906108c SS |
6 | Contributed by Cygnus Support. |
7 | ||
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b JM |
20 | You should have received a copy of the GNU General Public License |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
24 | |
25 | #include "defs.h" | |
26 | #include <errno.h> | |
c906108c SS |
27 | #include "gdb_string.h" |
28 | #include "target.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "symtab.h" | |
31 | #include "inferior.h" | |
32 | #include "bfd.h" | |
33 | #include "symfile.h" | |
34 | #include "objfiles.h" | |
03f2053f | 35 | #include "gdb_wait.h" |
4930751a | 36 | #include "dcache.h" |
c906108c | 37 | #include <signal.h> |
4e052eda | 38 | #include "regcache.h" |
0088c768 | 39 | #include "gdb_assert.h" |
b6591e8b | 40 | #include "gdbcore.h" |
c906108c | 41 | |
a14ed312 | 42 | static void target_info (char *, int); |
c906108c | 43 | |
a14ed312 | 44 | static void maybe_kill_then_create_inferior (char *, char *, char **); |
c906108c | 45 | |
a14ed312 | 46 | static void maybe_kill_then_attach (char *, int); |
c906108c | 47 | |
a14ed312 | 48 | static void kill_or_be_killed (int); |
c906108c | 49 | |
a14ed312 | 50 | static void default_terminal_info (char *, int); |
c906108c | 51 | |
ccaa32c7 GS |
52 | static int default_region_size_ok_for_hw_watchpoint (int); |
53 | ||
a14ed312 | 54 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 55 | |
a14ed312 | 56 | static void tcomplain (void); |
c906108c | 57 | |
a14ed312 | 58 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 59 | |
a14ed312 | 60 | static int return_zero (void); |
c906108c | 61 | |
a14ed312 | 62 | static int return_one (void); |
c906108c | 63 | |
ccaa32c7 GS |
64 | static int return_minus_one (void); |
65 | ||
a14ed312 | 66 | void target_ignore (void); |
c906108c | 67 | |
a14ed312 | 68 | static void target_command (char *, int); |
c906108c | 69 | |
a14ed312 | 70 | static struct target_ops *find_default_run_target (char *); |
c906108c | 71 | |
a14ed312 | 72 | static void nosupport_runtime (void); |
392a587b | 73 | |
39f77062 | 74 | static void normal_target_post_startup_inferior (ptid_t ptid); |
392a587b | 75 | |
4b8a223f | 76 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 77 | enum target_object object, |
8aa91c1e AC |
78 | const char *annex, void *readbuf, |
79 | const void *writebuf, | |
80 | ULONGEST offset, LONGEST len); | |
0088c768 | 81 | |
917317f4 JM |
82 | /* Transfer LEN bytes between target address MEMADDR and GDB address |
83 | MYADDR. Returns 0 for success, errno code for failure (which | |
84 | includes partial transfers -- if you want a more useful response to | |
85 | partial transfers, try either target_read_memory_partial or | |
86 | target_write_memory_partial). */ | |
c906108c | 87 | |
570b8f7c AC |
88 | static int target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, |
89 | int write); | |
c906108c | 90 | |
a14ed312 | 91 | static void init_dummy_target (void); |
c906108c | 92 | |
a14ed312 | 93 | static void debug_to_open (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void debug_to_close (int); |
c906108c | 96 | |
a14ed312 | 97 | static void debug_to_attach (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void debug_to_detach (char *, int); |
c906108c | 100 | |
6ad8ae5c DJ |
101 | static void debug_to_disconnect (char *, int); |
102 | ||
39f77062 | 103 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 104 | |
39f77062 | 105 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 106 | |
a14ed312 | 107 | static void debug_to_fetch_registers (int); |
c906108c | 108 | |
a14ed312 | 109 | static void debug_to_store_registers (int); |
c906108c | 110 | |
a14ed312 | 111 | static void debug_to_prepare_to_store (void); |
c906108c | 112 | |
5ae5f592 AC |
113 | static int debug_to_xfer_memory (CORE_ADDR, char *, int, int, |
114 | struct mem_attrib *, struct target_ops *); | |
c906108c | 115 | |
a14ed312 | 116 | static void debug_to_files_info (struct target_ops *); |
c906108c | 117 | |
a14ed312 | 118 | static int debug_to_insert_breakpoint (CORE_ADDR, char *); |
c906108c | 119 | |
a14ed312 | 120 | static int debug_to_remove_breakpoint (CORE_ADDR, char *); |
c906108c | 121 | |
ccaa32c7 GS |
122 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
123 | ||
124 | static int debug_to_insert_hw_breakpoint (CORE_ADDR, char *); | |
125 | ||
126 | static int debug_to_remove_hw_breakpoint (CORE_ADDR, char *); | |
127 | ||
128 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
129 | ||
130 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
131 | ||
132 | static int debug_to_stopped_by_watchpoint (void); | |
133 | ||
134 | static CORE_ADDR debug_to_stopped_data_address (void); | |
135 | ||
136 | static int debug_to_region_size_ok_for_hw_watchpoint (int); | |
137 | ||
a14ed312 | 138 | static void debug_to_terminal_init (void); |
c906108c | 139 | |
a14ed312 | 140 | static void debug_to_terminal_inferior (void); |
c906108c | 141 | |
a14ed312 | 142 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 143 | |
a790ad35 SC |
144 | static void debug_to_terminal_save_ours (void); |
145 | ||
a14ed312 | 146 | static void debug_to_terminal_ours (void); |
c906108c | 147 | |
a14ed312 | 148 | static void debug_to_terminal_info (char *, int); |
c906108c | 149 | |
a14ed312 | 150 | static void debug_to_kill (void); |
c906108c | 151 | |
a14ed312 | 152 | static void debug_to_load (char *, int); |
c906108c | 153 | |
a14ed312 | 154 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 155 | |
a14ed312 | 156 | static void debug_to_create_inferior (char *, char *, char **); |
c906108c | 157 | |
a14ed312 | 158 | static void debug_to_mourn_inferior (void); |
c906108c | 159 | |
a14ed312 | 160 | static int debug_to_can_run (void); |
c906108c | 161 | |
39f77062 | 162 | static void debug_to_notice_signals (ptid_t); |
c906108c | 163 | |
39f77062 | 164 | static int debug_to_thread_alive (ptid_t); |
c906108c | 165 | |
a14ed312 | 166 | static void debug_to_stop (void); |
c906108c | 167 | |
c906108c SS |
168 | /* Pointer to array of target architecture structures; the size of the |
169 | array; the current index into the array; the allocated size of the | |
170 | array. */ | |
171 | struct target_ops **target_structs; | |
172 | unsigned target_struct_size; | |
173 | unsigned target_struct_index; | |
174 | unsigned target_struct_allocsize; | |
175 | #define DEFAULT_ALLOCSIZE 10 | |
176 | ||
177 | /* The initial current target, so that there is always a semi-valid | |
178 | current target. */ | |
179 | ||
180 | static struct target_ops dummy_target; | |
181 | ||
182 | /* Top of target stack. */ | |
183 | ||
258b763a | 184 | static struct target_ops *target_stack; |
c906108c SS |
185 | |
186 | /* The target structure we are currently using to talk to a process | |
187 | or file or whatever "inferior" we have. */ | |
188 | ||
189 | struct target_ops current_target; | |
190 | ||
191 | /* Command list for target. */ | |
192 | ||
193 | static struct cmd_list_element *targetlist = NULL; | |
194 | ||
195 | /* Nonzero if we are debugging an attached outside process | |
196 | rather than an inferior. */ | |
197 | ||
198 | int attach_flag; | |
199 | ||
c906108c SS |
200 | /* Non-zero if we want to see trace of target level stuff. */ |
201 | ||
202 | static int targetdebug = 0; | |
203 | ||
a14ed312 | 204 | static void setup_target_debug (void); |
c906108c | 205 | |
4930751a C |
206 | DCACHE *target_dcache; |
207 | ||
c906108c SS |
208 | /* The user just typed 'target' without the name of a target. */ |
209 | ||
c906108c | 210 | static void |
fba45db2 | 211 | target_command (char *arg, int from_tty) |
c906108c SS |
212 | { |
213 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
214 | gdb_stdout); | |
215 | } | |
216 | ||
217 | /* Add a possible target architecture to the list. */ | |
218 | ||
219 | void | |
fba45db2 | 220 | add_target (struct target_ops *t) |
c906108c | 221 | { |
0088c768 | 222 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
223 | if (t->to_xfer_partial == NULL) |
224 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 225 | |
c906108c SS |
226 | if (!target_structs) |
227 | { | |
228 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
229 | target_structs = (struct target_ops **) xmalloc | |
230 | (target_struct_allocsize * sizeof (*target_structs)); | |
231 | } | |
232 | if (target_struct_size >= target_struct_allocsize) | |
233 | { | |
234 | target_struct_allocsize *= 2; | |
235 | target_structs = (struct target_ops **) | |
c5aa993b JM |
236 | xrealloc ((char *) target_structs, |
237 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
238 | } |
239 | target_structs[target_struct_size++] = t; | |
c906108c SS |
240 | |
241 | if (targetlist == NULL) | |
242 | add_prefix_cmd ("target", class_run, target_command, | |
243 | "Connect to a target machine or process.\n\ | |
244 | The first argument is the type or protocol of the target machine.\n\ | |
245 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
246 | information on the arguments for a particular protocol, type\n\ | |
247 | `help target ' followed by the protocol name.", | |
248 | &targetlist, "target ", 0, &cmdlist); | |
249 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
250 | } | |
251 | ||
252 | /* Stub functions */ | |
253 | ||
254 | void | |
fba45db2 | 255 | target_ignore (void) |
c906108c SS |
256 | { |
257 | } | |
258 | ||
11cf8741 JM |
259 | void |
260 | target_load (char *arg, int from_tty) | |
261 | { | |
4930751a | 262 | dcache_invalidate (target_dcache); |
11cf8741 JM |
263 | (*current_target.to_load) (arg, from_tty); |
264 | } | |
265 | ||
c906108c | 266 | static int |
fba45db2 KB |
267 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
268 | struct target_ops *t) | |
c906108c | 269 | { |
c5aa993b JM |
270 | errno = EIO; /* Can't read/write this location */ |
271 | return 0; /* No bytes handled */ | |
c906108c SS |
272 | } |
273 | ||
274 | static void | |
fba45db2 | 275 | tcomplain (void) |
c906108c SS |
276 | { |
277 | error ("You can't do that when your target is `%s'", | |
278 | current_target.to_shortname); | |
279 | } | |
280 | ||
281 | void | |
fba45db2 | 282 | noprocess (void) |
c906108c SS |
283 | { |
284 | error ("You can't do that without a process to debug."); | |
285 | } | |
286 | ||
c906108c | 287 | static int |
fba45db2 | 288 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 289 | { |
c5aa993b | 290 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
291 | } |
292 | ||
392a587b | 293 | static void |
fba45db2 | 294 | nosupport_runtime (void) |
c906108c | 295 | { |
39f77062 | 296 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
297 | noprocess (); |
298 | else | |
299 | error ("No run-time support for this"); | |
300 | } | |
301 | ||
302 | ||
c906108c | 303 | static void |
fba45db2 | 304 | default_terminal_info (char *args, int from_tty) |
c906108c | 305 | { |
c5aa993b | 306 | printf_unfiltered ("No saved terminal information.\n"); |
c906108c SS |
307 | } |
308 | ||
309 | /* This is the default target_create_inferior and target_attach function. | |
310 | If the current target is executing, it asks whether to kill it off. | |
311 | If this function returns without calling error(), it has killed off | |
312 | the target, and the operation should be attempted. */ | |
313 | ||
314 | static void | |
fba45db2 | 315 | kill_or_be_killed (int from_tty) |
c906108c SS |
316 | { |
317 | if (target_has_execution) | |
318 | { | |
319 | printf_unfiltered ("You are already running a program:\n"); | |
320 | target_files_info (); | |
c5aa993b JM |
321 | if (query ("Kill it? ")) |
322 | { | |
323 | target_kill (); | |
324 | if (target_has_execution) | |
325 | error ("Killing the program did not help."); | |
326 | return; | |
327 | } | |
328 | else | |
329 | { | |
330 | error ("Program not killed."); | |
331 | } | |
c906108c | 332 | } |
c5aa993b | 333 | tcomplain (); |
c906108c SS |
334 | } |
335 | ||
336 | static void | |
fba45db2 | 337 | maybe_kill_then_attach (char *args, int from_tty) |
c906108c SS |
338 | { |
339 | kill_or_be_killed (from_tty); | |
340 | target_attach (args, from_tty); | |
341 | } | |
342 | ||
343 | static void | |
fba45db2 | 344 | maybe_kill_then_create_inferior (char *exec, char *args, char **env) |
c906108c SS |
345 | { |
346 | kill_or_be_killed (0); | |
347 | target_create_inferior (exec, args, env); | |
348 | } | |
349 | ||
7998dfc3 AC |
350 | /* Go through the target stack from top to bottom, copying over zero |
351 | entries in current_target, then filling in still empty entries. In | |
352 | effect, we are doing class inheritance through the pushed target | |
353 | vectors. | |
354 | ||
355 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
356 | is currently implemented, is that it discards any knowledge of | |
357 | which target an inherited method originally belonged to. | |
358 | Consequently, new new target methods should instead explicitly and | |
359 | locally search the target stack for the target that can handle the | |
360 | request. */ | |
c906108c SS |
361 | |
362 | static void | |
7998dfc3 | 363 | update_current_target (void) |
c906108c | 364 | { |
7998dfc3 AC |
365 | struct target_ops *t; |
366 | ||
367 | /* First, reset curren'ts contents. */ | |
368 | memset (¤t_target, 0, sizeof (current_target)); | |
369 | ||
370 | #define INHERIT(FIELD, TARGET) \ | |
371 | if (!current_target.FIELD) \ | |
372 | current_target.FIELD = (TARGET)->FIELD | |
373 | ||
374 | for (t = target_stack; t; t = t->beneath) | |
375 | { | |
376 | INHERIT (to_shortname, t); | |
377 | INHERIT (to_longname, t); | |
378 | INHERIT (to_doc, t); | |
379 | INHERIT (to_open, t); | |
380 | INHERIT (to_close, t); | |
381 | INHERIT (to_attach, t); | |
382 | INHERIT (to_post_attach, t); | |
383 | INHERIT (to_detach, t); | |
384 | INHERIT (to_disconnect, t); | |
385 | INHERIT (to_resume, t); | |
386 | INHERIT (to_wait, t); | |
387 | INHERIT (to_post_wait, t); | |
388 | INHERIT (to_fetch_registers, t); | |
389 | INHERIT (to_store_registers, t); | |
390 | INHERIT (to_prepare_to_store, t); | |
391 | INHERIT (to_xfer_memory, t); | |
392 | INHERIT (to_files_info, t); | |
393 | INHERIT (to_insert_breakpoint, t); | |
394 | INHERIT (to_remove_breakpoint, t); | |
395 | INHERIT (to_can_use_hw_breakpoint, t); | |
396 | INHERIT (to_insert_hw_breakpoint, t); | |
397 | INHERIT (to_remove_hw_breakpoint, t); | |
398 | INHERIT (to_insert_watchpoint, t); | |
399 | INHERIT (to_remove_watchpoint, t); | |
400 | INHERIT (to_stopped_data_address, t); | |
401 | INHERIT (to_stopped_by_watchpoint, t); | |
402 | INHERIT (to_have_continuable_watchpoint, t); | |
403 | INHERIT (to_region_size_ok_for_hw_watchpoint, t); | |
404 | INHERIT (to_terminal_init, t); | |
405 | INHERIT (to_terminal_inferior, t); | |
406 | INHERIT (to_terminal_ours_for_output, t); | |
407 | INHERIT (to_terminal_ours, t); | |
408 | INHERIT (to_terminal_save_ours, t); | |
409 | INHERIT (to_terminal_info, t); | |
410 | INHERIT (to_kill, t); | |
411 | INHERIT (to_load, t); | |
412 | INHERIT (to_lookup_symbol, t); | |
413 | INHERIT (to_create_inferior, t); | |
414 | INHERIT (to_post_startup_inferior, t); | |
415 | INHERIT (to_acknowledge_created_inferior, t); | |
416 | INHERIT (to_insert_fork_catchpoint, t); | |
417 | INHERIT (to_remove_fork_catchpoint, t); | |
418 | INHERIT (to_insert_vfork_catchpoint, t); | |
419 | INHERIT (to_remove_vfork_catchpoint, t); | |
420 | INHERIT (to_follow_fork, t); | |
421 | INHERIT (to_insert_exec_catchpoint, t); | |
422 | INHERIT (to_remove_exec_catchpoint, t); | |
423 | INHERIT (to_reported_exec_events_per_exec_call, t); | |
424 | INHERIT (to_has_exited, t); | |
425 | INHERIT (to_mourn_inferior, t); | |
426 | INHERIT (to_can_run, t); | |
427 | INHERIT (to_notice_signals, t); | |
428 | INHERIT (to_thread_alive, t); | |
429 | INHERIT (to_find_new_threads, t); | |
430 | INHERIT (to_pid_to_str, t); | |
431 | INHERIT (to_extra_thread_info, t); | |
432 | INHERIT (to_stop, t); | |
4b8a223f | 433 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 AC |
434 | INHERIT (to_rcmd, t); |
435 | INHERIT (to_enable_exception_callback, t); | |
436 | INHERIT (to_get_current_exception_event, t); | |
437 | INHERIT (to_pid_to_exec_file, t); | |
438 | INHERIT (to_stratum, t); | |
439 | INHERIT (to_has_all_memory, t); | |
440 | INHERIT (to_has_memory, t); | |
441 | INHERIT (to_has_stack, t); | |
442 | INHERIT (to_has_registers, t); | |
443 | INHERIT (to_has_execution, t); | |
444 | INHERIT (to_has_thread_control, t); | |
445 | INHERIT (to_sections, t); | |
446 | INHERIT (to_sections_end, t); | |
447 | INHERIT (to_can_async_p, t); | |
448 | INHERIT (to_is_async_p, t); | |
449 | INHERIT (to_async, t); | |
450 | INHERIT (to_async_mask_value, t); | |
451 | INHERIT (to_find_memory_regions, t); | |
452 | INHERIT (to_make_corefile_notes, t); | |
453 | INHERIT (to_get_thread_local_address, t); | |
454 | INHERIT (to_magic, t); | |
455 | } | |
456 | #undef INHERIT | |
457 | ||
458 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
459 | it. Some entries are defaulted to a method that print an error, |
460 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
461 | |
462 | #define de_fault(field, value) \ | |
7998dfc3 AC |
463 | if (!current_target.field) \ |
464 | current_target.field = value | |
0d06e24b JM |
465 | |
466 | de_fault (to_open, | |
467 | (void (*) (char *, int)) | |
468 | tcomplain); | |
469 | de_fault (to_close, | |
470 | (void (*) (int)) | |
471 | target_ignore); | |
472 | de_fault (to_attach, | |
473 | maybe_kill_then_attach); | |
474 | de_fault (to_post_attach, | |
475 | (void (*) (int)) | |
476 | target_ignore); | |
0d06e24b JM |
477 | de_fault (to_detach, |
478 | (void (*) (char *, int)) | |
479 | target_ignore); | |
6ad8ae5c DJ |
480 | de_fault (to_disconnect, |
481 | (void (*) (char *, int)) | |
482 | tcomplain); | |
0d06e24b | 483 | de_fault (to_resume, |
39f77062 | 484 | (void (*) (ptid_t, int, enum target_signal)) |
0d06e24b JM |
485 | noprocess); |
486 | de_fault (to_wait, | |
39f77062 | 487 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) |
0d06e24b JM |
488 | noprocess); |
489 | de_fault (to_post_wait, | |
39f77062 | 490 | (void (*) (ptid_t, int)) |
0d06e24b JM |
491 | target_ignore); |
492 | de_fault (to_fetch_registers, | |
493 | (void (*) (int)) | |
494 | target_ignore); | |
495 | de_fault (to_store_registers, | |
496 | (void (*) (int)) | |
497 | noprocess); | |
498 | de_fault (to_prepare_to_store, | |
499 | (void (*) (void)) | |
500 | noprocess); | |
501 | de_fault (to_xfer_memory, | |
29e57380 | 502 | (int (*) (CORE_ADDR, char *, int, int, struct mem_attrib *, struct target_ops *)) |
0d06e24b JM |
503 | nomemory); |
504 | de_fault (to_files_info, | |
505 | (void (*) (struct target_ops *)) | |
506 | target_ignore); | |
507 | de_fault (to_insert_breakpoint, | |
508 | memory_insert_breakpoint); | |
509 | de_fault (to_remove_breakpoint, | |
510 | memory_remove_breakpoint); | |
ccaa32c7 GS |
511 | de_fault (to_can_use_hw_breakpoint, |
512 | (int (*) (int, int, int)) | |
513 | return_zero); | |
514 | de_fault (to_insert_hw_breakpoint, | |
515 | (int (*) (CORE_ADDR, char *)) | |
516 | return_minus_one); | |
517 | de_fault (to_remove_hw_breakpoint, | |
518 | (int (*) (CORE_ADDR, char *)) | |
519 | return_minus_one); | |
520 | de_fault (to_insert_watchpoint, | |
521 | (int (*) (CORE_ADDR, int, int)) | |
522 | return_minus_one); | |
523 | de_fault (to_remove_watchpoint, | |
524 | (int (*) (CORE_ADDR, int, int)) | |
525 | return_minus_one); | |
526 | de_fault (to_stopped_by_watchpoint, | |
527 | (int (*) (void)) | |
528 | return_zero); | |
529 | de_fault (to_stopped_data_address, | |
530 | (CORE_ADDR (*) (void)) | |
531 | return_zero); | |
532 | de_fault (to_region_size_ok_for_hw_watchpoint, | |
533 | default_region_size_ok_for_hw_watchpoint); | |
0d06e24b JM |
534 | de_fault (to_terminal_init, |
535 | (void (*) (void)) | |
536 | target_ignore); | |
537 | de_fault (to_terminal_inferior, | |
538 | (void (*) (void)) | |
539 | target_ignore); | |
540 | de_fault (to_terminal_ours_for_output, | |
541 | (void (*) (void)) | |
542 | target_ignore); | |
543 | de_fault (to_terminal_ours, | |
544 | (void (*) (void)) | |
545 | target_ignore); | |
a790ad35 SC |
546 | de_fault (to_terminal_save_ours, |
547 | (void (*) (void)) | |
548 | target_ignore); | |
0d06e24b JM |
549 | de_fault (to_terminal_info, |
550 | default_terminal_info); | |
551 | de_fault (to_kill, | |
552 | (void (*) (void)) | |
553 | noprocess); | |
554 | de_fault (to_load, | |
555 | (void (*) (char *, int)) | |
556 | tcomplain); | |
557 | de_fault (to_lookup_symbol, | |
558 | (int (*) (char *, CORE_ADDR *)) | |
559 | nosymbol); | |
560 | de_fault (to_create_inferior, | |
561 | maybe_kill_then_create_inferior); | |
562 | de_fault (to_post_startup_inferior, | |
39f77062 | 563 | (void (*) (ptid_t)) |
0d06e24b JM |
564 | target_ignore); |
565 | de_fault (to_acknowledge_created_inferior, | |
566 | (void (*) (int)) | |
567 | target_ignore); | |
0d06e24b JM |
568 | de_fault (to_insert_fork_catchpoint, |
569 | (int (*) (int)) | |
570 | tcomplain); | |
571 | de_fault (to_remove_fork_catchpoint, | |
572 | (int (*) (int)) | |
573 | tcomplain); | |
574 | de_fault (to_insert_vfork_catchpoint, | |
575 | (int (*) (int)) | |
576 | tcomplain); | |
577 | de_fault (to_remove_vfork_catchpoint, | |
578 | (int (*) (int)) | |
579 | tcomplain); | |
4c9ba7e0 | 580 | de_fault (to_follow_fork, |
6604731b | 581 | (int (*) (int)) |
0d06e24b JM |
582 | target_ignore); |
583 | de_fault (to_insert_exec_catchpoint, | |
584 | (int (*) (int)) | |
585 | tcomplain); | |
586 | de_fault (to_remove_exec_catchpoint, | |
587 | (int (*) (int)) | |
588 | tcomplain); | |
0d06e24b JM |
589 | de_fault (to_reported_exec_events_per_exec_call, |
590 | (int (*) (void)) | |
591 | return_one); | |
0d06e24b JM |
592 | de_fault (to_has_exited, |
593 | (int (*) (int, int, int *)) | |
594 | return_zero); | |
595 | de_fault (to_mourn_inferior, | |
596 | (void (*) (void)) | |
597 | noprocess); | |
598 | de_fault (to_can_run, | |
599 | return_zero); | |
600 | de_fault (to_notice_signals, | |
39f77062 | 601 | (void (*) (ptid_t)) |
0d06e24b JM |
602 | target_ignore); |
603 | de_fault (to_thread_alive, | |
39f77062 | 604 | (int (*) (ptid_t)) |
0d06e24b JM |
605 | return_zero); |
606 | de_fault (to_find_new_threads, | |
607 | (void (*) (void)) | |
608 | target_ignore); | |
609 | de_fault (to_extra_thread_info, | |
610 | (char *(*) (struct thread_info *)) | |
611 | return_zero); | |
612 | de_fault (to_stop, | |
613 | (void (*) (void)) | |
614 | target_ignore); | |
4b8a223f | 615 | current_target.to_xfer_partial = default_xfer_partial; |
0d06e24b | 616 | de_fault (to_rcmd, |
d9fcf2fb | 617 | (void (*) (char *, struct ui_file *)) |
0d06e24b JM |
618 | tcomplain); |
619 | de_fault (to_enable_exception_callback, | |
620 | (struct symtab_and_line * (*) (enum exception_event_kind, int)) | |
621 | nosupport_runtime); | |
622 | de_fault (to_get_current_exception_event, | |
623 | (struct exception_event_record * (*) (void)) | |
624 | nosupport_runtime); | |
625 | de_fault (to_pid_to_exec_file, | |
626 | (char *(*) (int)) | |
627 | return_zero); | |
0d06e24b JM |
628 | de_fault (to_can_async_p, |
629 | (int (*) (void)) | |
630 | return_zero); | |
631 | de_fault (to_is_async_p, | |
632 | (int (*) (void)) | |
633 | return_zero); | |
634 | de_fault (to_async, | |
635 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
636 | tcomplain); | |
c906108c | 637 | #undef de_fault |
c906108c | 638 | |
7998dfc3 AC |
639 | /* Finally, position the target-stack beneath the squashed |
640 | "current_target". That way code looking for a non-inherited | |
641 | target method can quickly and simply find it. */ | |
642 | current_target.beneath = target_stack; | |
c906108c SS |
643 | } |
644 | ||
645 | /* Push a new target type into the stack of the existing target accessors, | |
646 | possibly superseding some of the existing accessors. | |
647 | ||
648 | Result is zero if the pushed target ended up on top of the stack, | |
649 | nonzero if at least one target is on top of it. | |
650 | ||
651 | Rather than allow an empty stack, we always have the dummy target at | |
652 | the bottom stratum, so we can call the function vectors without | |
653 | checking them. */ | |
654 | ||
655 | int | |
fba45db2 | 656 | push_target (struct target_ops *t) |
c906108c | 657 | { |
258b763a | 658 | struct target_ops **cur; |
c906108c SS |
659 | |
660 | /* Check magic number. If wrong, it probably means someone changed | |
661 | the struct definition, but not all the places that initialize one. */ | |
662 | if (t->to_magic != OPS_MAGIC) | |
663 | { | |
c5aa993b JM |
664 | fprintf_unfiltered (gdb_stderr, |
665 | "Magic number of %s target struct wrong\n", | |
666 | t->to_shortname); | |
e1e9e218 | 667 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
668 | } |
669 | ||
258b763a AC |
670 | /* Find the proper stratum to install this target in. */ |
671 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 672 | { |
258b763a | 673 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
674 | break; |
675 | } | |
676 | ||
258b763a AC |
677 | /* If there's already targets at this stratum, remove them. */ |
678 | /* FIXME: cagney/2003-10-15: I think this should be poping all | |
679 | targets to CUR, and not just those at this stratum level. */ | |
680 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
681 | { | |
682 | /* There's already something at this stratum level. Close it, | |
683 | and un-hook it from the stack. */ | |
684 | struct target_ops *tmp = (*cur); | |
685 | (*cur) = (*cur)->beneath; | |
686 | tmp->beneath = NULL; | |
f1c07ab0 | 687 | target_close (tmp, 0); |
258b763a | 688 | } |
c906108c SS |
689 | |
690 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
691 | t->beneath = (*cur); |
692 | (*cur) = t; | |
c906108c SS |
693 | |
694 | update_current_target (); | |
695 | ||
c906108c SS |
696 | if (targetdebug) |
697 | setup_target_debug (); | |
c906108c | 698 | |
258b763a AC |
699 | /* Not on top? */ |
700 | return (t != target_stack); | |
c906108c SS |
701 | } |
702 | ||
703 | /* Remove a target_ops vector from the stack, wherever it may be. | |
704 | Return how many times it was removed (0 or 1). */ | |
705 | ||
706 | int | |
fba45db2 | 707 | unpush_target (struct target_ops *t) |
c906108c | 708 | { |
258b763a AC |
709 | struct target_ops **cur; |
710 | struct target_ops *tmp; | |
c906108c | 711 | |
c906108c SS |
712 | /* Look for the specified target. Note that we assume that a target |
713 | can only occur once in the target stack. */ | |
714 | ||
258b763a AC |
715 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
716 | { | |
717 | if ((*cur) == t) | |
718 | break; | |
719 | } | |
c906108c | 720 | |
258b763a | 721 | if ((*cur) == NULL) |
c906108c SS |
722 | return 0; /* Didn't find target_ops, quit now */ |
723 | ||
5269965e AC |
724 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
725 | unconditional by moving it to before the above check that the | |
726 | target was in the target stack (something about "Change the way | |
727 | pushing and popping of targets work to support target overlays | |
728 | and inheritance"). This doesn't make much sense - only open | |
729 | targets should be closed. */ | |
730 | target_close (t, 0); | |
731 | ||
c906108c | 732 | /* Unchain the target */ |
258b763a AC |
733 | tmp = (*cur); |
734 | (*cur) = (*cur)->beneath; | |
735 | tmp->beneath = NULL; | |
c906108c SS |
736 | |
737 | update_current_target (); | |
c906108c SS |
738 | |
739 | return 1; | |
740 | } | |
741 | ||
742 | void | |
fba45db2 | 743 | pop_target (void) |
c906108c | 744 | { |
f1c07ab0 | 745 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 746 | if (unpush_target (target_stack) == 1) |
c906108c SS |
747 | return; |
748 | ||
c5aa993b JM |
749 | fprintf_unfiltered (gdb_stderr, |
750 | "pop_target couldn't find target %s\n", | |
751 | current_target.to_shortname); | |
e1e9e218 | 752 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
753 | } |
754 | ||
755 | #undef MIN | |
756 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
757 | ||
758 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
759 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
760 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
761 | is responsible for freeing it. Return the number of bytes successfully | |
762 | read. */ | |
763 | ||
764 | int | |
fba45db2 | 765 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
766 | { |
767 | int tlen, origlen, offset, i; | |
768 | char buf[4]; | |
769 | int errcode = 0; | |
770 | char *buffer; | |
771 | int buffer_allocated; | |
772 | char *bufptr; | |
773 | unsigned int nbytes_read = 0; | |
774 | ||
775 | /* Small for testing. */ | |
776 | buffer_allocated = 4; | |
777 | buffer = xmalloc (buffer_allocated); | |
778 | bufptr = buffer; | |
779 | ||
780 | origlen = len; | |
781 | ||
782 | while (len > 0) | |
783 | { | |
784 | tlen = MIN (len, 4 - (memaddr & 3)); | |
785 | offset = memaddr & 3; | |
786 | ||
d4b2399a | 787 | errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0); |
c906108c SS |
788 | if (errcode != 0) |
789 | { | |
790 | /* The transfer request might have crossed the boundary to an | |
791 | unallocated region of memory. Retry the transfer, requesting | |
792 | a single byte. */ | |
793 | tlen = 1; | |
794 | offset = 0; | |
d4b2399a | 795 | errcode = target_xfer_memory (memaddr, buf, 1, 0); |
c906108c SS |
796 | if (errcode != 0) |
797 | goto done; | |
798 | } | |
799 | ||
800 | if (bufptr - buffer + tlen > buffer_allocated) | |
801 | { | |
802 | unsigned int bytes; | |
803 | bytes = bufptr - buffer; | |
804 | buffer_allocated *= 2; | |
805 | buffer = xrealloc (buffer, buffer_allocated); | |
806 | bufptr = buffer + bytes; | |
807 | } | |
808 | ||
809 | for (i = 0; i < tlen; i++) | |
810 | { | |
811 | *bufptr++ = buf[i + offset]; | |
812 | if (buf[i + offset] == '\000') | |
813 | { | |
814 | nbytes_read += i + 1; | |
815 | goto done; | |
816 | } | |
817 | } | |
818 | ||
819 | memaddr += tlen; | |
820 | len -= tlen; | |
821 | nbytes_read += tlen; | |
822 | } | |
c5aa993b | 823 | done: |
c906108c SS |
824 | if (errnop != NULL) |
825 | *errnop = errcode; | |
826 | if (string != NULL) | |
827 | *string = buffer; | |
828 | return nbytes_read; | |
829 | } | |
830 | ||
8db32d44 AC |
831 | /* Find a section containing ADDR. */ |
832 | struct section_table * | |
833 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
834 | { | |
835 | struct section_table *secp; | |
836 | for (secp = target->to_sections; | |
837 | secp < target->to_sections_end; | |
838 | secp++) | |
839 | { | |
840 | if (addr >= secp->addr && addr < secp->endaddr) | |
841 | return secp; | |
842 | } | |
843 | return NULL; | |
844 | } | |
845 | ||
c906108c SS |
846 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
847 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
848 | if any error occurs. | |
849 | ||
850 | If an error occurs, no guarantee is made about the contents of the data at | |
851 | MYADDR. In particular, the caller should not depend upon partial reads | |
852 | filling the buffer with good data. There is no way for the caller to know | |
853 | how much good data might have been transfered anyway. Callers that can | |
854 | deal with partial reads should call target_read_memory_partial. */ | |
855 | ||
856 | int | |
fba45db2 | 857 | target_read_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 858 | { |
d4b2399a | 859 | return target_xfer_memory (memaddr, myaddr, len, 0); |
c906108c SS |
860 | } |
861 | ||
c906108c | 862 | int |
fba45db2 | 863 | target_write_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 864 | { |
d4b2399a | 865 | return target_xfer_memory (memaddr, myaddr, len, 1); |
c906108c | 866 | } |
c5aa993b | 867 | |
3a11626d MS |
868 | static int trust_readonly = 0; |
869 | ||
67e0617e C |
870 | /* Move memory to or from the targets. The top target gets priority; |
871 | if it cannot handle it, it is offered to the next one down, etc. | |
c906108c | 872 | |
67e0617e | 873 | Result is -1 on error, or the number of bytes transfered. */ |
c906108c | 874 | |
4930751a | 875 | int |
29e57380 C |
876 | do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
877 | struct mem_attrib *attrib) | |
c906108c | 878 | { |
c906108c | 879 | int res; |
4930751a | 880 | int done = 0; |
c906108c | 881 | struct target_ops *t; |
c906108c SS |
882 | |
883 | /* Zero length requests are ok and require no work. */ | |
884 | if (len == 0) | |
885 | return 0; | |
886 | ||
c906108c SS |
887 | /* to_xfer_memory is not guaranteed to set errno, even when it returns |
888 | 0. */ | |
889 | errno = 0; | |
890 | ||
3a11626d MS |
891 | if (!write && trust_readonly) |
892 | { | |
8db32d44 | 893 | struct section_table *secp; |
2ceb85d0 BE |
894 | /* User-settable option, "trust-readonly-sections". If true, |
895 | then memory from any SEC_READONLY bfd section may be read | |
8db32d44 AC |
896 | directly from the bfd file. */ |
897 | secp = target_section_by_addr (¤t_target, memaddr); | |
898 | if (secp != NULL | |
899 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
900 | & SEC_READONLY)) | |
901 | return xfer_memory (memaddr, myaddr, len, 0, attrib, ¤t_target); | |
3a11626d MS |
902 | } |
903 | ||
67e0617e | 904 | /* The quick case is that the top target can handle the transfer. */ |
c906108c | 905 | res = current_target.to_xfer_memory |
29e57380 | 906 | (memaddr, myaddr, len, write, attrib, ¤t_target); |
c906108c | 907 | |
67e0617e C |
908 | /* If res <= 0 then we call it again in the loop. Ah well. */ |
909 | if (res <= 0) | |
c906108c | 910 | { |
258b763a | 911 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 912 | { |
c906108c SS |
913 | if (!t->to_has_memory) |
914 | continue; | |
915 | ||
29e57380 | 916 | res = t->to_xfer_memory (memaddr, myaddr, len, write, attrib, t); |
c906108c SS |
917 | if (res > 0) |
918 | break; /* Handled all or part of xfer */ | |
919 | if (t->to_has_all_memory) | |
920 | break; | |
921 | } | |
922 | ||
4930751a | 923 | if (res <= 0) |
67e0617e | 924 | return -1; |
4930751a | 925 | } |
67e0617e C |
926 | |
927 | return res; | |
4930751a C |
928 | } |
929 | ||
67e0617e C |
930 | |
931 | /* Perform a memory transfer. Iterate until the entire region has | |
932 | been transfered. | |
933 | ||
934 | Result is 0 or errno value. */ | |
935 | ||
4930751a C |
936 | static int |
937 | target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write) | |
938 | { | |
939 | int res; | |
29e57380 C |
940 | int reg_len; |
941 | struct mem_region *region; | |
4930751a C |
942 | |
943 | /* Zero length requests are ok and require no work. */ | |
944 | if (len == 0) | |
945 | { | |
946 | return 0; | |
947 | } | |
948 | ||
949 | while (len > 0) | |
950 | { | |
29e57380 C |
951 | region = lookup_mem_region(memaddr); |
952 | if (memaddr + len < region->hi) | |
953 | reg_len = len; | |
954 | else | |
955 | reg_len = region->hi - memaddr; | |
956 | ||
957 | switch (region->attrib.mode) | |
c906108c | 958 | { |
29e57380 C |
959 | case MEM_RO: |
960 | if (write) | |
961 | return EIO; | |
962 | break; | |
963 | ||
964 | case MEM_WO: | |
c906108c | 965 | if (!write) |
c906108c | 966 | return EIO; |
29e57380 | 967 | break; |
c906108c | 968 | } |
4930751a | 969 | |
29e57380 C |
970 | while (reg_len > 0) |
971 | { | |
972 | if (region->attrib.cache) | |
8add0441 | 973 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, |
29e57380 C |
974 | reg_len, write); |
975 | else | |
8add0441 | 976 | res = do_xfer_memory (memaddr, myaddr, reg_len, write, |
29e57380 C |
977 | ®ion->attrib); |
978 | ||
979 | if (res <= 0) | |
980 | { | |
981 | /* If this address is for nonexistent memory, read zeros | |
982 | if reading, or do nothing if writing. Return | |
983 | error. */ | |
984 | if (!write) | |
985 | memset (myaddr, 0, len); | |
986 | if (errno == 0) | |
987 | return EIO; | |
988 | else | |
989 | return errno; | |
990 | } | |
991 | ||
992 | memaddr += res; | |
993 | myaddr += res; | |
994 | len -= res; | |
995 | reg_len -= res; | |
996 | } | |
c906108c | 997 | } |
4930751a | 998 | |
c906108c SS |
999 | return 0; /* We managed to cover it all somehow. */ |
1000 | } | |
1001 | ||
1002 | ||
67e0617e C |
1003 | /* Perform a partial memory transfer. |
1004 | ||
1005 | Result is -1 on error, or the number of bytes transfered. */ | |
917317f4 JM |
1006 | |
1007 | static int | |
4930751a | 1008 | target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len, |
917317f4 JM |
1009 | int write_p, int *err) |
1010 | { | |
1011 | int res; | |
29e57380 C |
1012 | int reg_len; |
1013 | struct mem_region *region; | |
917317f4 JM |
1014 | |
1015 | /* Zero length requests are ok and require no work. */ | |
1016 | if (len == 0) | |
1017 | { | |
1018 | *err = 0; | |
1019 | return 0; | |
1020 | } | |
1021 | ||
29e57380 C |
1022 | region = lookup_mem_region(memaddr); |
1023 | if (memaddr + len < region->hi) | |
1024 | reg_len = len; | |
1025 | else | |
1026 | reg_len = region->hi - memaddr; | |
1027 | ||
1028 | switch (region->attrib.mode) | |
1029 | { | |
1030 | case MEM_RO: | |
1031 | if (write_p) | |
1032 | { | |
1033 | *err = EIO; | |
873406a6 | 1034 | return -1; |
29e57380 C |
1035 | } |
1036 | break; | |
1037 | ||
1038 | case MEM_WO: | |
1039 | if (write_p) | |
1040 | { | |
1041 | *err = EIO; | |
873406a6 | 1042 | return -1; |
29e57380 C |
1043 | } |
1044 | break; | |
1045 | } | |
1046 | ||
1047 | if (region->attrib.cache) | |
1048 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, | |
1049 | reg_len, write_p); | |
1050 | else | |
1051 | res = do_xfer_memory (memaddr, myaddr, reg_len, write_p, | |
1052 | ®ion->attrib); | |
1053 | ||
4930751a | 1054 | if (res <= 0) |
917317f4 | 1055 | { |
4930751a C |
1056 | if (errno != 0) |
1057 | *err = errno; | |
1058 | else | |
1059 | *err = EIO; | |
917317f4 | 1060 | |
4930751a | 1061 | return -1; |
917317f4 JM |
1062 | } |
1063 | ||
4930751a | 1064 | *err = 0; |
67e0617e | 1065 | return res; |
917317f4 JM |
1066 | } |
1067 | ||
1068 | int | |
1069 | target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1070 | { | |
1071 | return target_xfer_memory_partial (memaddr, buf, len, 0, err); | |
1072 | } | |
1073 | ||
1074 | int | |
1075 | target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1076 | { | |
1077 | return target_xfer_memory_partial (memaddr, buf, len, 1, err); | |
1078 | } | |
1079 | ||
1e3ff5ad AC |
1080 | /* More generic transfers. */ |
1081 | ||
0088c768 | 1082 | static LONGEST |
8aa91c1e AC |
1083 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
1084 | const char *annex, void *readbuf, | |
1085 | const void *writebuf, ULONGEST offset, LONGEST len) | |
0088c768 AC |
1086 | { |
1087 | if (object == TARGET_OBJECT_MEMORY | |
1088 | && ops->to_xfer_memory != NULL) | |
1089 | /* If available, fall back to the target's "to_xfer_memory" | |
1090 | method. */ | |
1091 | { | |
4b8a223f | 1092 | int xfered = -1; |
0088c768 | 1093 | errno = 0; |
4b8a223f AC |
1094 | if (writebuf != NULL) |
1095 | { | |
1096 | void *buffer = xmalloc (len); | |
1097 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1098 | memcpy (buffer, writebuf, len); | |
1099 | xfered = ops->to_xfer_memory (offset, buffer, len, 1/*write*/, NULL, | |
1100 | ops); | |
1101 | do_cleanups (cleanup); | |
1102 | } | |
1103 | if (readbuf != NULL) | |
1104 | xfered = ops->to_xfer_memory (offset, readbuf, len, 0/*read*/, NULL, | |
0088c768 | 1105 | ops); |
0088c768 AC |
1106 | if (xfered > 0) |
1107 | return xfered; | |
1108 | else if (xfered == 0 && errno == 0) | |
1109 | /* "to_xfer_memory" uses 0, cross checked against ERRNO as one | |
1110 | indication of an error. */ | |
1111 | return 0; | |
1112 | else | |
1113 | return -1; | |
1114 | } | |
1115 | else if (ops->beneath != NULL) | |
4b8a223f | 1116 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
8aa91c1e | 1117 | readbuf, writebuf, offset, len); |
0088c768 AC |
1118 | else |
1119 | return -1; | |
1120 | } | |
1121 | ||
1122 | /* Target vector read/write partial wrapper functions. | |
1123 | ||
1124 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1125 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1126 | easier. */ | |
1127 | ||
1e3ff5ad AC |
1128 | LONGEST |
1129 | target_read_partial (struct target_ops *ops, | |
1130 | enum target_object object, | |
1131 | const char *annex, void *buf, | |
1132 | ULONGEST offset, LONGEST len) | |
1133 | { | |
4b8a223f | 1134 | gdb_assert (ops->to_xfer_partial != NULL); |
8aa91c1e | 1135 | return ops->to_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1136 | } |
1137 | ||
1138 | LONGEST | |
1139 | target_write_partial (struct target_ops *ops, | |
1140 | enum target_object object, | |
1141 | const char *annex, const void *buf, | |
1142 | ULONGEST offset, LONGEST len) | |
1143 | { | |
4b8a223f | 1144 | gdb_assert (ops->to_xfer_partial != NULL); |
8aa91c1e | 1145 | return ops->to_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1146 | } |
1147 | ||
1148 | /* Wrappers to perform the full transfer. */ | |
1149 | LONGEST | |
1150 | target_read (struct target_ops *ops, | |
1151 | enum target_object object, | |
1152 | const char *annex, void *buf, | |
1153 | ULONGEST offset, LONGEST len) | |
1154 | { | |
1155 | LONGEST xfered = 0; | |
1156 | while (xfered < len) | |
1157 | { | |
0088c768 AC |
1158 | LONGEST xfer = target_read_partial (ops, object, annex, |
1159 | (bfd_byte *) buf + xfered, | |
1160 | offset + xfered, len - xfered); | |
1e3ff5ad | 1161 | /* Call an observer, notifying them of the xfer progress? */ |
0088c768 AC |
1162 | if (xfer <= 0) |
1163 | /* Call memory_error? */ | |
1164 | return -1; | |
1e3ff5ad AC |
1165 | xfered += xfer; |
1166 | QUIT; | |
1167 | } | |
1168 | return len; | |
1169 | } | |
1170 | ||
1171 | LONGEST | |
1172 | target_write (struct target_ops *ops, | |
1173 | enum target_object object, | |
1174 | const char *annex, const void *buf, | |
1175 | ULONGEST offset, LONGEST len) | |
1176 | { | |
1177 | LONGEST xfered = 0; | |
1178 | while (xfered < len) | |
1179 | { | |
1180 | LONGEST xfer = target_write_partial (ops, object, annex, | |
1181 | (bfd_byte *) buf + xfered, | |
1182 | offset + xfered, len - xfered); | |
1183 | /* Call an observer, notifying them of the xfer progress? */ | |
0088c768 AC |
1184 | if (xfer <= 0) |
1185 | /* Call memory_error? */ | |
1186 | return -1; | |
1e3ff5ad AC |
1187 | xfered += xfer; |
1188 | QUIT; | |
1189 | } | |
1190 | return len; | |
1191 | } | |
1192 | ||
b6591e8b AC |
1193 | /* Memory transfer methods. */ |
1194 | ||
1195 | void | |
1196 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, void *buf, | |
1197 | LONGEST len) | |
1198 | { | |
1199 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1200 | != len) | |
1201 | memory_error (EIO, addr); | |
1202 | } | |
1203 | ||
1204 | ULONGEST | |
1205 | get_target_memory_unsigned (struct target_ops *ops, | |
1206 | CORE_ADDR addr, int len) | |
1207 | { | |
1208 | char buf[sizeof (ULONGEST)]; | |
1209 | ||
1210 | gdb_assert (len <= sizeof (buf)); | |
1211 | get_target_memory (ops, addr, buf, len); | |
1212 | return extract_unsigned_integer (buf, len); | |
1213 | } | |
1214 | ||
c906108c | 1215 | static void |
fba45db2 | 1216 | target_info (char *args, int from_tty) |
c906108c SS |
1217 | { |
1218 | struct target_ops *t; | |
c906108c | 1219 | int has_all_mem = 0; |
c5aa993b | 1220 | |
c906108c SS |
1221 | if (symfile_objfile != NULL) |
1222 | printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name); | |
1223 | ||
1224 | #ifdef FILES_INFO_HOOK | |
1225 | if (FILES_INFO_HOOK ()) | |
1226 | return; | |
1227 | #endif | |
1228 | ||
258b763a | 1229 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1230 | { |
c906108c SS |
1231 | if (!t->to_has_memory) |
1232 | continue; | |
1233 | ||
c5aa993b | 1234 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1235 | continue; |
1236 | if (has_all_mem) | |
c5aa993b JM |
1237 | printf_unfiltered ("\tWhile running this, GDB does not access memory from...\n"); |
1238 | printf_unfiltered ("%s:\n", t->to_longname); | |
1239 | (t->to_files_info) (t); | |
c906108c SS |
1240 | has_all_mem = t->to_has_all_memory; |
1241 | } | |
1242 | } | |
1243 | ||
1244 | /* This is to be called by the open routine before it does | |
1245 | anything. */ | |
1246 | ||
1247 | void | |
fba45db2 | 1248 | target_preopen (int from_tty) |
c906108c | 1249 | { |
c5aa993b | 1250 | dont_repeat (); |
c906108c SS |
1251 | |
1252 | if (target_has_execution) | |
c5aa993b | 1253 | { |
adf40b2e JM |
1254 | if (!from_tty |
1255 | || query ("A program is being debugged already. Kill it? ")) | |
c5aa993b | 1256 | target_kill (); |
c906108c | 1257 | else |
c5aa993b | 1258 | error ("Program not killed."); |
c906108c SS |
1259 | } |
1260 | ||
1261 | /* Calling target_kill may remove the target from the stack. But if | |
1262 | it doesn't (which seems like a win for UDI), remove it now. */ | |
1263 | ||
1264 | if (target_has_execution) | |
1265 | pop_target (); | |
1266 | } | |
1267 | ||
1268 | /* Detach a target after doing deferred register stores. */ | |
1269 | ||
1270 | void | |
fba45db2 | 1271 | target_detach (char *args, int from_tty) |
c906108c SS |
1272 | { |
1273 | /* Handle any optimized stores to the inferior. */ | |
1274 | #ifdef DO_DEFERRED_STORES | |
1275 | DO_DEFERRED_STORES; | |
1276 | #endif | |
1277 | (current_target.to_detach) (args, from_tty); | |
1278 | } | |
1279 | ||
6ad8ae5c DJ |
1280 | void |
1281 | target_disconnect (char *args, int from_tty) | |
1282 | { | |
1283 | /* Handle any optimized stores to the inferior. */ | |
1284 | #ifdef DO_DEFERRED_STORES | |
1285 | DO_DEFERRED_STORES; | |
1286 | #endif | |
1287 | (current_target.to_disconnect) (args, from_tty); | |
1288 | } | |
1289 | ||
c906108c | 1290 | void |
fba45db2 | 1291 | target_link (char *modname, CORE_ADDR *t_reloc) |
c906108c | 1292 | { |
cb137aa5 | 1293 | if (DEPRECATED_STREQ (current_target.to_shortname, "rombug")) |
c906108c SS |
1294 | { |
1295 | (current_target.to_lookup_symbol) (modname, t_reloc); | |
1296 | if (*t_reloc == 0) | |
c5aa993b | 1297 | error ("Unable to link to %s and get relocation in rombug", modname); |
c906108c SS |
1298 | } |
1299 | else | |
2acceee2 | 1300 | *t_reloc = (CORE_ADDR) -1; |
c906108c SS |
1301 | } |
1302 | ||
ed9a39eb JM |
1303 | int |
1304 | target_async_mask (int mask) | |
1305 | { | |
1306 | int saved_async_masked_status = target_async_mask_value; | |
1307 | target_async_mask_value = mask; | |
1308 | return saved_async_masked_status; | |
1309 | } | |
1310 | ||
c906108c SS |
1311 | /* Look through the list of possible targets for a target that can |
1312 | execute a run or attach command without any other data. This is | |
1313 | used to locate the default process stratum. | |
1314 | ||
1315 | Result is always valid (error() is called for errors). */ | |
1316 | ||
1317 | static struct target_ops * | |
fba45db2 | 1318 | find_default_run_target (char *do_mesg) |
c906108c SS |
1319 | { |
1320 | struct target_ops **t; | |
1321 | struct target_ops *runable = NULL; | |
1322 | int count; | |
1323 | ||
1324 | count = 0; | |
1325 | ||
1326 | for (t = target_structs; t < target_structs + target_struct_size; | |
1327 | ++t) | |
1328 | { | |
c5aa993b | 1329 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
1330 | { |
1331 | runable = *t; | |
1332 | ++count; | |
1333 | } | |
1334 | } | |
1335 | ||
1336 | if (count != 1) | |
1337 | error ("Don't know how to %s. Try \"help target\".", do_mesg); | |
1338 | ||
1339 | return runable; | |
1340 | } | |
1341 | ||
1342 | void | |
fba45db2 | 1343 | find_default_attach (char *args, int from_tty) |
c906108c SS |
1344 | { |
1345 | struct target_ops *t; | |
1346 | ||
c5aa993b | 1347 | t = find_default_run_target ("attach"); |
c906108c SS |
1348 | (t->to_attach) (args, from_tty); |
1349 | return; | |
1350 | } | |
1351 | ||
c906108c | 1352 | void |
fba45db2 | 1353 | find_default_create_inferior (char *exec_file, char *allargs, char **env) |
c906108c SS |
1354 | { |
1355 | struct target_ops *t; | |
1356 | ||
c5aa993b | 1357 | t = find_default_run_target ("run"); |
c906108c SS |
1358 | (t->to_create_inferior) (exec_file, allargs, env); |
1359 | return; | |
1360 | } | |
1361 | ||
ccaa32c7 GS |
1362 | static int |
1363 | default_region_size_ok_for_hw_watchpoint (int byte_count) | |
1364 | { | |
b1e29e33 | 1365 | return (byte_count <= DEPRECATED_REGISTER_SIZE); |
ccaa32c7 GS |
1366 | } |
1367 | ||
c906108c | 1368 | static int |
fba45db2 | 1369 | return_zero (void) |
c906108c SS |
1370 | { |
1371 | return 0; | |
1372 | } | |
1373 | ||
1374 | static int | |
fba45db2 | 1375 | return_one (void) |
c906108c SS |
1376 | { |
1377 | return 1; | |
1378 | } | |
1379 | ||
ccaa32c7 GS |
1380 | static int |
1381 | return_minus_one (void) | |
1382 | { | |
1383 | return -1; | |
1384 | } | |
1385 | ||
6426a772 JM |
1386 | /* |
1387 | * Resize the to_sections pointer. Also make sure that anyone that | |
1388 | * was holding on to an old value of it gets updated. | |
1389 | * Returns the old size. | |
1390 | */ | |
1391 | ||
1392 | int | |
1393 | target_resize_to_sections (struct target_ops *target, int num_added) | |
1394 | { | |
1395 | struct target_ops **t; | |
1396 | struct section_table *old_value; | |
1397 | int old_count; | |
1398 | ||
1399 | old_value = target->to_sections; | |
1400 | ||
1401 | if (target->to_sections) | |
1402 | { | |
1403 | old_count = target->to_sections_end - target->to_sections; | |
1404 | target->to_sections = (struct section_table *) | |
1405 | xrealloc ((char *) target->to_sections, | |
1406 | (sizeof (struct section_table)) * (num_added + old_count)); | |
1407 | } | |
1408 | else | |
1409 | { | |
1410 | old_count = 0; | |
1411 | target->to_sections = (struct section_table *) | |
1412 | xmalloc ((sizeof (struct section_table)) * num_added); | |
1413 | } | |
1414 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
1415 | ||
1416 | /* Check to see if anyone else was pointing to this structure. | |
1417 | If old_value was null, then no one was. */ | |
1418 | ||
1419 | if (old_value) | |
1420 | { | |
1421 | for (t = target_structs; t < target_structs + target_struct_size; | |
1422 | ++t) | |
1423 | { | |
1424 | if ((*t)->to_sections == old_value) | |
1425 | { | |
1426 | (*t)->to_sections = target->to_sections; | |
1427 | (*t)->to_sections_end = target->to_sections_end; | |
1428 | } | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | return old_count; | |
1433 | ||
1434 | } | |
1435 | ||
07cd4b97 JB |
1436 | /* Remove all target sections taken from ABFD. |
1437 | ||
1438 | Scan the current target stack for targets whose section tables | |
1439 | refer to sections from BFD, and remove those sections. We use this | |
1440 | when we notice that the inferior has unloaded a shared object, for | |
1441 | example. */ | |
1442 | void | |
1443 | remove_target_sections (bfd *abfd) | |
1444 | { | |
1445 | struct target_ops **t; | |
1446 | ||
1447 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
1448 | { | |
1449 | struct section_table *src, *dest; | |
1450 | ||
1451 | dest = (*t)->to_sections; | |
1452 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
1453 | if (src->bfd != abfd) | |
1454 | { | |
1455 | /* Keep this section. */ | |
1456 | if (dest < src) *dest = *src; | |
1457 | dest++; | |
1458 | } | |
1459 | ||
1460 | /* If we've dropped any sections, resize the section table. */ | |
1461 | if (dest < src) | |
1462 | target_resize_to_sections (*t, dest - src); | |
1463 | } | |
1464 | } | |
1465 | ||
1466 | ||
1467 | ||
1468 | ||
7a292a7a SS |
1469 | /* Find a single runnable target in the stack and return it. If for |
1470 | some reason there is more than one, return NULL. */ | |
1471 | ||
1472 | struct target_ops * | |
fba45db2 | 1473 | find_run_target (void) |
7a292a7a SS |
1474 | { |
1475 | struct target_ops **t; | |
1476 | struct target_ops *runable = NULL; | |
1477 | int count; | |
c5aa993b | 1478 | |
7a292a7a | 1479 | count = 0; |
c5aa993b | 1480 | |
7a292a7a SS |
1481 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
1482 | { | |
c5aa993b | 1483 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
1484 | { |
1485 | runable = *t; | |
1486 | ++count; | |
1487 | } | |
1488 | } | |
c5aa993b | 1489 | |
7a292a7a SS |
1490 | return (count == 1 ? runable : NULL); |
1491 | } | |
1492 | ||
ed9a39eb JM |
1493 | /* Find a single core_stratum target in the list of targets and return it. |
1494 | If for some reason there is more than one, return NULL. */ | |
1495 | ||
c906108c | 1496 | struct target_ops * |
fba45db2 | 1497 | find_core_target (void) |
c906108c SS |
1498 | { |
1499 | struct target_ops **t; | |
1500 | struct target_ops *runable = NULL; | |
1501 | int count; | |
c5aa993b | 1502 | |
c906108c | 1503 | count = 0; |
c5aa993b | 1504 | |
c906108c SS |
1505 | for (t = target_structs; t < target_structs + target_struct_size; |
1506 | ++t) | |
1507 | { | |
1508 | if ((*t)->to_stratum == core_stratum) | |
1509 | { | |
1510 | runable = *t; | |
1511 | ++count; | |
1512 | } | |
1513 | } | |
c5aa993b JM |
1514 | |
1515 | return (count == 1 ? runable : NULL); | |
c906108c | 1516 | } |
ed9a39eb JM |
1517 | |
1518 | /* | |
1519 | * Find the next target down the stack from the specified target. | |
1520 | */ | |
1521 | ||
1522 | struct target_ops * | |
fba45db2 | 1523 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 1524 | { |
258b763a | 1525 | return t->beneath; |
ed9a39eb JM |
1526 | } |
1527 | ||
c906108c SS |
1528 | \f |
1529 | /* The inferior process has died. Long live the inferior! */ | |
1530 | ||
1531 | void | |
fba45db2 | 1532 | generic_mourn_inferior (void) |
c906108c SS |
1533 | { |
1534 | extern int show_breakpoint_hit_counts; | |
1535 | ||
39f77062 | 1536 | inferior_ptid = null_ptid; |
c906108c SS |
1537 | attach_flag = 0; |
1538 | breakpoint_init_inferior (inf_exited); | |
1539 | registers_changed (); | |
1540 | ||
1541 | #ifdef CLEAR_DEFERRED_STORES | |
1542 | /* Delete any pending stores to the inferior... */ | |
1543 | CLEAR_DEFERRED_STORES; | |
1544 | #endif | |
1545 | ||
1546 | reopen_exec_file (); | |
1547 | reinit_frame_cache (); | |
1548 | ||
1549 | /* It is confusing to the user for ignore counts to stick around | |
1550 | from previous runs of the inferior. So clear them. */ | |
1551 | /* However, it is more confusing for the ignore counts to disappear when | |
1552 | using hit counts. So don't clear them if we're counting hits. */ | |
1553 | if (!show_breakpoint_hit_counts) | |
1554 | breakpoint_clear_ignore_counts (); | |
c5b739b5 FN |
1555 | |
1556 | if (detach_hook) | |
1557 | detach_hook (); | |
c906108c SS |
1558 | } |
1559 | \f | |
c906108c SS |
1560 | /* Helper function for child_wait and the Lynx derivatives of child_wait. |
1561 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our | |
1562 | translation of that in OURSTATUS. */ | |
1563 | void | |
fba45db2 | 1564 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c SS |
1565 | { |
1566 | #ifdef CHILD_SPECIAL_WAITSTATUS | |
1567 | /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS | |
1568 | if it wants to deal with hoststatus. */ | |
1569 | if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) | |
1570 | return; | |
1571 | #endif | |
1572 | ||
1573 | if (WIFEXITED (hoststatus)) | |
1574 | { | |
1575 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1576 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
1577 | } | |
1578 | else if (!WIFSTOPPED (hoststatus)) | |
1579 | { | |
1580 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1581 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
1582 | } | |
1583 | else | |
1584 | { | |
1585 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1586 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
1587 | } | |
1588 | } | |
1589 | \f | |
c906108c | 1590 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 1591 | int (*target_activity_function) (void); |
c906108c SS |
1592 | int target_activity_fd; |
1593 | \f | |
1594 | /* Convert a normal process ID to a string. Returns the string in a static | |
1595 | buffer. */ | |
1596 | ||
1597 | char * | |
39f77062 | 1598 | normal_pid_to_str (ptid_t ptid) |
c906108c SS |
1599 | { |
1600 | static char buf[30]; | |
1601 | ||
39f77062 | 1602 | sprintf (buf, "process %d", PIDGET (ptid)); |
c906108c SS |
1603 | return buf; |
1604 | } | |
1605 | ||
1606 | /* Some targets (such as ttrace-based HPUX) don't allow us to request | |
1607 | notification of inferior events such as fork and vork immediately | |
1608 | after the inferior is created. (This because of how gdb gets an | |
1609 | inferior created via invoking a shell to do it. In such a scenario, | |
1610 | if the shell init file has commands in it, the shell will fork and | |
1611 | exec for each of those commands, and we will see each such fork | |
1612 | event. Very bad.) | |
c5aa993b | 1613 | |
c906108c SS |
1614 | This function is used by all targets that allow us to request |
1615 | notification of forks, etc at inferior creation time; e.g., in | |
1616 | target_acknowledge_forked_child. | |
c5aa993b | 1617 | */ |
392a587b | 1618 | static void |
39f77062 | 1619 | normal_target_post_startup_inferior (ptid_t ptid) |
c906108c SS |
1620 | { |
1621 | /* This space intentionally left blank. */ | |
1622 | } | |
1623 | ||
be4d1333 | 1624 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
1625 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
1626 | { | |
1627 | error ("No target."); | |
1628 | return 0; | |
1629 | } | |
1630 | ||
1631 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
1632 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
1633 | { | |
1634 | error ("No target."); | |
1635 | return NULL; | |
1636 | } | |
1637 | ||
c906108c SS |
1638 | /* Set up the handful of non-empty slots needed by the dummy target |
1639 | vector. */ | |
1640 | ||
1641 | static void | |
fba45db2 | 1642 | init_dummy_target (void) |
c906108c SS |
1643 | { |
1644 | dummy_target.to_shortname = "None"; | |
1645 | dummy_target.to_longname = "None"; | |
1646 | dummy_target.to_doc = ""; | |
1647 | dummy_target.to_attach = find_default_attach; | |
c906108c | 1648 | dummy_target.to_create_inferior = find_default_create_inferior; |
ed9a39eb | 1649 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 1650 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
1651 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
1652 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 1653 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
1654 | dummy_target.to_magic = OPS_MAGIC; |
1655 | } | |
c906108c | 1656 | \f |
c5aa993b | 1657 | |
c906108c SS |
1658 | static struct target_ops debug_target; |
1659 | ||
1660 | static void | |
fba45db2 | 1661 | debug_to_open (char *args, int from_tty) |
c906108c SS |
1662 | { |
1663 | debug_target.to_open (args, from_tty); | |
1664 | ||
96baa820 | 1665 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
1666 | } |
1667 | ||
1668 | static void | |
fba45db2 | 1669 | debug_to_close (int quitting) |
c906108c | 1670 | { |
f1c07ab0 | 1671 | target_close (&debug_target, quitting); |
96baa820 | 1672 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
1673 | } |
1674 | ||
f1c07ab0 AC |
1675 | void |
1676 | target_close (struct target_ops *targ, int quitting) | |
1677 | { | |
1678 | if (targ->to_xclose != NULL) | |
1679 | targ->to_xclose (targ, quitting); | |
1680 | else if (targ->to_close != NULL) | |
1681 | targ->to_close (quitting); | |
1682 | } | |
1683 | ||
c906108c | 1684 | static void |
fba45db2 | 1685 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
1686 | { |
1687 | debug_target.to_attach (args, from_tty); | |
1688 | ||
96baa820 | 1689 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
1690 | } |
1691 | ||
1692 | ||
1693 | static void | |
fba45db2 | 1694 | debug_to_post_attach (int pid) |
c906108c SS |
1695 | { |
1696 | debug_target.to_post_attach (pid); | |
1697 | ||
96baa820 | 1698 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
1699 | } |
1700 | ||
c906108c | 1701 | static void |
fba45db2 | 1702 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
1703 | { |
1704 | debug_target.to_detach (args, from_tty); | |
1705 | ||
96baa820 | 1706 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
1707 | } |
1708 | ||
6ad8ae5c DJ |
1709 | static void |
1710 | debug_to_disconnect (char *args, int from_tty) | |
1711 | { | |
1712 | debug_target.to_disconnect (args, from_tty); | |
1713 | ||
1714 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1715 | args, from_tty); | |
1716 | } | |
1717 | ||
c906108c | 1718 | static void |
39f77062 | 1719 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 1720 | { |
39f77062 | 1721 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 1722 | |
39f77062 | 1723 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
1724 | step ? "step" : "continue", |
1725 | target_signal_to_name (siggnal)); | |
1726 | } | |
1727 | ||
39f77062 KB |
1728 | static ptid_t |
1729 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 1730 | { |
39f77062 | 1731 | ptid_t retval; |
c906108c | 1732 | |
39f77062 | 1733 | retval = debug_target.to_wait (ptid, status); |
c906108c | 1734 | |
96baa820 | 1735 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
1736 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
1737 | PIDGET (retval)); | |
96baa820 | 1738 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
1739 | switch (status->kind) |
1740 | { | |
1741 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 1742 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
1743 | status->value.integer); |
1744 | break; | |
1745 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 1746 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
1747 | target_signal_to_name (status->value.sig)); |
1748 | break; | |
1749 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 1750 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
1751 | target_signal_to_name (status->value.sig)); |
1752 | break; | |
1753 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 1754 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
1755 | break; |
1756 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 1757 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
1758 | break; |
1759 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 1760 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
1761 | break; |
1762 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 1763 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
1764 | break; |
1765 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 1766 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
1767 | break; |
1768 | default: | |
96baa820 | 1769 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
1770 | break; |
1771 | } | |
1772 | ||
1773 | return retval; | |
1774 | } | |
1775 | ||
1776 | static void | |
39f77062 | 1777 | debug_to_post_wait (ptid_t ptid, int status) |
c906108c | 1778 | { |
39f77062 | 1779 | debug_target.to_post_wait (ptid, status); |
c906108c | 1780 | |
96baa820 | 1781 | fprintf_unfiltered (gdb_stdlog, "target_post_wait (%d, %d)\n", |
39f77062 | 1782 | PIDGET (ptid), status); |
c906108c SS |
1783 | } |
1784 | ||
bf0c5130 AC |
1785 | static void |
1786 | debug_print_register (const char * func, int regno) | |
1787 | { | |
1788 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1789 | if (regno >= 0 && regno < NUM_REGS + NUM_PSEUDO_REGS | |
1790 | && REGISTER_NAME (regno) != NULL && REGISTER_NAME (regno)[0] != '\0') | |
1791 | fprintf_unfiltered (gdb_stdlog, "(%s)", REGISTER_NAME (regno)); | |
1792 | else | |
1793 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1794 | if (regno >= 0) | |
1795 | { | |
1796 | int i; | |
d9d9c31f | 1797 | unsigned char buf[MAX_REGISTER_SIZE]; |
4caf0990 | 1798 | deprecated_read_register_gen (regno, buf); |
bf0c5130 | 1799 | fprintf_unfiltered (gdb_stdlog, " = "); |
12c266ea | 1800 | for (i = 0; i < DEPRECATED_REGISTER_RAW_SIZE (regno); i++) |
bf0c5130 AC |
1801 | { |
1802 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1803 | } | |
12c266ea | 1804 | if (DEPRECATED_REGISTER_RAW_SIZE (regno) <= sizeof (LONGEST)) |
bf0c5130 AC |
1805 | { |
1806 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", | |
1807 | paddr_nz (read_register (regno)), | |
1808 | paddr_d (read_register (regno))); | |
1809 | } | |
1810 | } | |
1811 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1812 | } | |
1813 | ||
c906108c | 1814 | static void |
fba45db2 | 1815 | debug_to_fetch_registers (int regno) |
c906108c SS |
1816 | { |
1817 | debug_target.to_fetch_registers (regno); | |
bf0c5130 | 1818 | debug_print_register ("target_fetch_registers", regno); |
c906108c SS |
1819 | } |
1820 | ||
1821 | static void | |
fba45db2 | 1822 | debug_to_store_registers (int regno) |
c906108c SS |
1823 | { |
1824 | debug_target.to_store_registers (regno); | |
bf0c5130 AC |
1825 | debug_print_register ("target_store_registers", regno); |
1826 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c906108c SS |
1827 | } |
1828 | ||
1829 | static void | |
fba45db2 | 1830 | debug_to_prepare_to_store (void) |
c906108c SS |
1831 | { |
1832 | debug_target.to_prepare_to_store (); | |
1833 | ||
96baa820 | 1834 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
1835 | } |
1836 | ||
1837 | static int | |
fba45db2 | 1838 | debug_to_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
29e57380 | 1839 | struct mem_attrib *attrib, |
fba45db2 | 1840 | struct target_ops *target) |
c906108c SS |
1841 | { |
1842 | int retval; | |
1843 | ||
29e57380 C |
1844 | retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write, |
1845 | attrib, target); | |
c906108c | 1846 | |
96baa820 | 1847 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 1848 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 1849 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
1850 | len, write ? "write" : "read", retval); |
1851 | ||
c5aa993b | 1852 | |
c906108c SS |
1853 | |
1854 | if (retval > 0) | |
1855 | { | |
1856 | int i; | |
1857 | ||
96baa820 | 1858 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
1859 | for (i = 0; i < retval; i++) |
1860 | { | |
1861 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
96baa820 JM |
1862 | fprintf_unfiltered (gdb_stdlog, "\n"); |
1863 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); | |
c906108c SS |
1864 | } |
1865 | } | |
1866 | ||
96baa820 | 1867 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
1868 | |
1869 | return retval; | |
1870 | } | |
1871 | ||
1872 | static void | |
fba45db2 | 1873 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
1874 | { |
1875 | debug_target.to_files_info (target); | |
1876 | ||
96baa820 | 1877 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
1878 | } |
1879 | ||
1880 | static int | |
fba45db2 | 1881 | debug_to_insert_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
1882 | { |
1883 | int retval; | |
1884 | ||
1885 | retval = debug_target.to_insert_breakpoint (addr, save); | |
1886 | ||
96baa820 | 1887 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
1888 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
1889 | (unsigned long) addr, | |
1890 | (unsigned long) retval); | |
c906108c SS |
1891 | return retval; |
1892 | } | |
1893 | ||
1894 | static int | |
fba45db2 | 1895 | debug_to_remove_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
1896 | { |
1897 | int retval; | |
1898 | ||
1899 | retval = debug_target.to_remove_breakpoint (addr, save); | |
1900 | ||
96baa820 | 1901 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
1902 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
1903 | (unsigned long) addr, | |
1904 | (unsigned long) retval); | |
c906108c SS |
1905 | return retval; |
1906 | } | |
1907 | ||
ccaa32c7 GS |
1908 | static int |
1909 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
1910 | { | |
1911 | int retval; | |
1912 | ||
1913 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
1914 | ||
1915 | fprintf_unfiltered (gdb_stdlog, | |
1916 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
1917 | (unsigned long) type, | |
1918 | (unsigned long) cnt, | |
1919 | (unsigned long) from_tty, | |
1920 | (unsigned long) retval); | |
1921 | return retval; | |
1922 | } | |
1923 | ||
1924 | static int | |
1925 | debug_to_region_size_ok_for_hw_watchpoint (int byte_count) | |
1926 | { | |
1927 | CORE_ADDR retval; | |
1928 | ||
1929 | retval = debug_target.to_region_size_ok_for_hw_watchpoint (byte_count); | |
1930 | ||
1931 | fprintf_unfiltered (gdb_stdlog, | |
1932 | "TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT (%ld) = 0x%lx\n", | |
1933 | (unsigned long) byte_count, | |
1934 | (unsigned long) retval); | |
1935 | return retval; | |
1936 | } | |
1937 | ||
1938 | static int | |
1939 | debug_to_stopped_by_watchpoint (void) | |
1940 | { | |
1941 | int retval; | |
1942 | ||
1943 | retval = debug_target.to_stopped_by_watchpoint (); | |
1944 | ||
1945 | fprintf_unfiltered (gdb_stdlog, | |
1946 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
1947 | (unsigned long) retval); | |
1948 | return retval; | |
1949 | } | |
1950 | ||
1951 | static CORE_ADDR | |
1952 | debug_to_stopped_data_address (void) | |
1953 | { | |
1954 | CORE_ADDR retval; | |
1955 | ||
1956 | retval = debug_target.to_stopped_data_address (); | |
1957 | ||
1958 | fprintf_unfiltered (gdb_stdlog, | |
1959 | "target_stopped_data_address () = 0x%lx\n", | |
1960 | (unsigned long) retval); | |
1961 | return retval; | |
1962 | } | |
1963 | ||
1964 | static int | |
1965 | debug_to_insert_hw_breakpoint (CORE_ADDR addr, char *save) | |
1966 | { | |
1967 | int retval; | |
1968 | ||
1969 | retval = debug_target.to_insert_hw_breakpoint (addr, save); | |
1970 | ||
1971 | fprintf_unfiltered (gdb_stdlog, | |
1972 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
1973 | (unsigned long) addr, | |
1974 | (unsigned long) retval); | |
1975 | return retval; | |
1976 | } | |
1977 | ||
1978 | static int | |
1979 | debug_to_remove_hw_breakpoint (CORE_ADDR addr, char *save) | |
1980 | { | |
1981 | int retval; | |
1982 | ||
1983 | retval = debug_target.to_remove_hw_breakpoint (addr, save); | |
1984 | ||
1985 | fprintf_unfiltered (gdb_stdlog, | |
1986 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
1987 | (unsigned long) addr, | |
1988 | (unsigned long) retval); | |
1989 | return retval; | |
1990 | } | |
1991 | ||
1992 | static int | |
1993 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
1994 | { | |
1995 | int retval; | |
1996 | ||
1997 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
1998 | ||
1999 | fprintf_unfiltered (gdb_stdlog, | |
2000 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2001 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2002 | return retval; | |
2003 | } | |
2004 | ||
2005 | static int | |
2006 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2007 | { | |
2008 | int retval; | |
2009 | ||
2010 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2011 | ||
2012 | fprintf_unfiltered (gdb_stdlog, | |
2013 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2014 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2015 | return retval; | |
2016 | } | |
2017 | ||
c906108c | 2018 | static void |
fba45db2 | 2019 | debug_to_terminal_init (void) |
c906108c SS |
2020 | { |
2021 | debug_target.to_terminal_init (); | |
2022 | ||
96baa820 | 2023 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2024 | } |
2025 | ||
2026 | static void | |
fba45db2 | 2027 | debug_to_terminal_inferior (void) |
c906108c SS |
2028 | { |
2029 | debug_target.to_terminal_inferior (); | |
2030 | ||
96baa820 | 2031 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2032 | } |
2033 | ||
2034 | static void | |
fba45db2 | 2035 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2036 | { |
2037 | debug_target.to_terminal_ours_for_output (); | |
2038 | ||
96baa820 | 2039 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2040 | } |
2041 | ||
2042 | static void | |
fba45db2 | 2043 | debug_to_terminal_ours (void) |
c906108c SS |
2044 | { |
2045 | debug_target.to_terminal_ours (); | |
2046 | ||
96baa820 | 2047 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2048 | } |
2049 | ||
a790ad35 SC |
2050 | static void |
2051 | debug_to_terminal_save_ours (void) | |
2052 | { | |
2053 | debug_target.to_terminal_save_ours (); | |
2054 | ||
2055 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2056 | } | |
2057 | ||
c906108c | 2058 | static void |
fba45db2 | 2059 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2060 | { |
2061 | debug_target.to_terminal_info (arg, from_tty); | |
2062 | ||
96baa820 | 2063 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2064 | from_tty); |
2065 | } | |
2066 | ||
2067 | static void | |
fba45db2 | 2068 | debug_to_kill (void) |
c906108c SS |
2069 | { |
2070 | debug_target.to_kill (); | |
2071 | ||
96baa820 | 2072 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2073 | } |
2074 | ||
2075 | static void | |
fba45db2 | 2076 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2077 | { |
2078 | debug_target.to_load (args, from_tty); | |
2079 | ||
96baa820 | 2080 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2081 | } |
2082 | ||
2083 | static int | |
fba45db2 | 2084 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2085 | { |
2086 | int retval; | |
2087 | ||
2088 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2089 | ||
96baa820 | 2090 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2091 | |
2092 | return retval; | |
2093 | } | |
2094 | ||
2095 | static void | |
fba45db2 | 2096 | debug_to_create_inferior (char *exec_file, char *args, char **env) |
c906108c SS |
2097 | { |
2098 | debug_target.to_create_inferior (exec_file, args, env); | |
2099 | ||
96baa820 | 2100 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx)\n", |
c906108c SS |
2101 | exec_file, args); |
2102 | } | |
2103 | ||
2104 | static void | |
39f77062 | 2105 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2106 | { |
39f77062 | 2107 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2108 | |
96baa820 | 2109 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2110 | PIDGET (ptid)); |
c906108c SS |
2111 | } |
2112 | ||
2113 | static void | |
fba45db2 | 2114 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2115 | { |
2116 | debug_target.to_acknowledge_created_inferior (pid); | |
2117 | ||
96baa820 | 2118 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2119 | pid); |
2120 | } | |
2121 | ||
c906108c | 2122 | static int |
fba45db2 | 2123 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2124 | { |
c5aa993b | 2125 | int retval; |
c906108c SS |
2126 | |
2127 | retval = debug_target.to_insert_fork_catchpoint (pid); | |
2128 | ||
96baa820 | 2129 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2130 | pid, retval); |
c906108c SS |
2131 | |
2132 | return retval; | |
2133 | } | |
2134 | ||
2135 | static int | |
fba45db2 | 2136 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2137 | { |
c5aa993b | 2138 | int retval; |
c906108c SS |
2139 | |
2140 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2141 | ||
96baa820 | 2142 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2143 | pid, retval); |
c906108c SS |
2144 | |
2145 | return retval; | |
2146 | } | |
2147 | ||
2148 | static int | |
fba45db2 | 2149 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2150 | { |
c5aa993b | 2151 | int retval; |
c906108c SS |
2152 | |
2153 | retval = debug_target.to_insert_vfork_catchpoint (pid); | |
2154 | ||
96baa820 | 2155 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)= %d\n", |
c5aa993b | 2156 | pid, retval); |
c906108c SS |
2157 | |
2158 | return retval; | |
2159 | } | |
2160 | ||
2161 | static int | |
fba45db2 | 2162 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2163 | { |
c5aa993b | 2164 | int retval; |
c906108c SS |
2165 | |
2166 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2167 | ||
96baa820 | 2168 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2169 | pid, retval); |
c906108c SS |
2170 | |
2171 | return retval; | |
2172 | } | |
2173 | ||
6604731b DJ |
2174 | static int |
2175 | debug_to_follow_fork (int follow_child) | |
c906108c | 2176 | { |
6604731b | 2177 | int retval = debug_target.to_follow_fork (follow_child); |
c906108c | 2178 | |
6604731b DJ |
2179 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", |
2180 | follow_child, retval); | |
2181 | ||
2182 | return retval; | |
c906108c SS |
2183 | } |
2184 | ||
2185 | static int | |
fba45db2 | 2186 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2187 | { |
c5aa993b | 2188 | int retval; |
c906108c SS |
2189 | |
2190 | retval = debug_target.to_insert_exec_catchpoint (pid); | |
2191 | ||
96baa820 | 2192 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2193 | pid, retval); |
c906108c SS |
2194 | |
2195 | return retval; | |
2196 | } | |
2197 | ||
2198 | static int | |
fba45db2 | 2199 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2200 | { |
c5aa993b | 2201 | int retval; |
c906108c SS |
2202 | |
2203 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2204 | ||
96baa820 | 2205 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2206 | pid, retval); |
c906108c SS |
2207 | |
2208 | return retval; | |
2209 | } | |
2210 | ||
c906108c | 2211 | static int |
fba45db2 | 2212 | debug_to_reported_exec_events_per_exec_call (void) |
c906108c | 2213 | { |
c5aa993b | 2214 | int reported_exec_events; |
c906108c SS |
2215 | |
2216 | reported_exec_events = debug_target.to_reported_exec_events_per_exec_call (); | |
2217 | ||
96baa820 | 2218 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2219 | "target_reported_exec_events_per_exec_call () = %d\n", |
c5aa993b | 2220 | reported_exec_events); |
c906108c SS |
2221 | |
2222 | return reported_exec_events; | |
2223 | } | |
2224 | ||
c906108c | 2225 | static int |
fba45db2 | 2226 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2227 | { |
c5aa993b | 2228 | int has_exited; |
c906108c SS |
2229 | |
2230 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2231 | ||
96baa820 | 2232 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2233 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2234 | |
2235 | return has_exited; | |
2236 | } | |
2237 | ||
2238 | static void | |
fba45db2 | 2239 | debug_to_mourn_inferior (void) |
c906108c SS |
2240 | { |
2241 | debug_target.to_mourn_inferior (); | |
2242 | ||
96baa820 | 2243 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2244 | } |
2245 | ||
2246 | static int | |
fba45db2 | 2247 | debug_to_can_run (void) |
c906108c SS |
2248 | { |
2249 | int retval; | |
2250 | ||
2251 | retval = debug_target.to_can_run (); | |
2252 | ||
96baa820 | 2253 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
2254 | |
2255 | return retval; | |
2256 | } | |
2257 | ||
2258 | static void | |
39f77062 | 2259 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 2260 | { |
39f77062 | 2261 | debug_target.to_notice_signals (ptid); |
c906108c | 2262 | |
39f77062 KB |
2263 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
2264 | PIDGET (ptid)); | |
c906108c SS |
2265 | } |
2266 | ||
2267 | static int | |
39f77062 | 2268 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
2269 | { |
2270 | int retval; | |
2271 | ||
39f77062 | 2272 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 2273 | |
96baa820 | 2274 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 2275 | PIDGET (ptid), retval); |
c906108c SS |
2276 | |
2277 | return retval; | |
2278 | } | |
2279 | ||
0d06e24b | 2280 | static void |
fba45db2 | 2281 | debug_to_find_new_threads (void) |
0d06e24b JM |
2282 | { |
2283 | debug_target.to_find_new_threads (); | |
2284 | ||
2285 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
2286 | } | |
2287 | ||
c906108c | 2288 | static void |
fba45db2 | 2289 | debug_to_stop (void) |
c906108c SS |
2290 | { |
2291 | debug_target.to_stop (); | |
2292 | ||
96baa820 | 2293 | fprintf_unfiltered (gdb_stdlog, "target_stop ()\n"); |
c906108c SS |
2294 | } |
2295 | ||
1e3ff5ad | 2296 | static LONGEST |
8aa91c1e AC |
2297 | debug_to_xfer_partial (struct target_ops *ops, enum target_object object, |
2298 | const char *annex, void *readbuf, const void *writebuf, | |
2299 | ULONGEST offset, LONGEST len) | |
1e3ff5ad AC |
2300 | { |
2301 | LONGEST retval; | |
2302 | ||
4b8a223f | 2303 | retval = debug_target.to_xfer_partial (&debug_target, object, annex, |
8aa91c1e | 2304 | readbuf, writebuf, offset, len); |
1e3ff5ad AC |
2305 | |
2306 | fprintf_unfiltered (gdb_stdlog, | |
4b8a223f | 2307 | "target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s\n", |
1e3ff5ad | 2308 | (int) object, (annex ? annex : "(null)"), |
8aa91c1e | 2309 | (long) readbuf, (long) writebuf, paddr_nz (offset), |
1e3ff5ad | 2310 | paddr_d (len), paddr_d (retval)); |
c906108c SS |
2311 | |
2312 | return retval; | |
2313 | } | |
2314 | ||
96baa820 JM |
2315 | static void |
2316 | debug_to_rcmd (char *command, | |
d9fcf2fb | 2317 | struct ui_file *outbuf) |
96baa820 JM |
2318 | { |
2319 | debug_target.to_rcmd (command, outbuf); | |
2320 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
2321 | } | |
2322 | ||
c906108c | 2323 | static struct symtab_and_line * |
fba45db2 | 2324 | debug_to_enable_exception_callback (enum exception_event_kind kind, int enable) |
c906108c | 2325 | { |
7a292a7a SS |
2326 | struct symtab_and_line *result; |
2327 | result = debug_target.to_enable_exception_callback (kind, enable); | |
96baa820 | 2328 | fprintf_unfiltered (gdb_stdlog, |
c906108c SS |
2329 | "target get_exception_callback_sal (%d, %d)\n", |
2330 | kind, enable); | |
7a292a7a | 2331 | return result; |
c906108c SS |
2332 | } |
2333 | ||
2334 | static struct exception_event_record * | |
fba45db2 | 2335 | debug_to_get_current_exception_event (void) |
c906108c | 2336 | { |
7a292a7a | 2337 | struct exception_event_record *result; |
c5aa993b | 2338 | result = debug_target.to_get_current_exception_event (); |
96baa820 | 2339 | fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n"); |
7a292a7a | 2340 | return result; |
c906108c SS |
2341 | } |
2342 | ||
2343 | static char * | |
fba45db2 | 2344 | debug_to_pid_to_exec_file (int pid) |
c906108c | 2345 | { |
c5aa993b | 2346 | char *exec_file; |
c906108c SS |
2347 | |
2348 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
2349 | ||
96baa820 | 2350 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 2351 | pid, exec_file); |
c906108c SS |
2352 | |
2353 | return exec_file; | |
2354 | } | |
2355 | ||
c906108c | 2356 | static void |
fba45db2 | 2357 | setup_target_debug (void) |
c906108c SS |
2358 | { |
2359 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
2360 | ||
2361 | current_target.to_open = debug_to_open; | |
2362 | current_target.to_close = debug_to_close; | |
2363 | current_target.to_attach = debug_to_attach; | |
2364 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 2365 | current_target.to_detach = debug_to_detach; |
6ad8ae5c | 2366 | current_target.to_disconnect = debug_to_disconnect; |
c906108c SS |
2367 | current_target.to_resume = debug_to_resume; |
2368 | current_target.to_wait = debug_to_wait; | |
2369 | current_target.to_post_wait = debug_to_post_wait; | |
2370 | current_target.to_fetch_registers = debug_to_fetch_registers; | |
2371 | current_target.to_store_registers = debug_to_store_registers; | |
2372 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
2373 | current_target.to_xfer_memory = debug_to_xfer_memory; | |
2374 | current_target.to_files_info = debug_to_files_info; | |
2375 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
2376 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
2377 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
2378 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
2379 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
2380 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
2381 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
2382 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
2383 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
2384 | current_target.to_region_size_ok_for_hw_watchpoint = debug_to_region_size_ok_for_hw_watchpoint; | |
c906108c SS |
2385 | current_target.to_terminal_init = debug_to_terminal_init; |
2386 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
2387 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
2388 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 2389 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
2390 | current_target.to_terminal_info = debug_to_terminal_info; |
2391 | current_target.to_kill = debug_to_kill; | |
2392 | current_target.to_load = debug_to_load; | |
2393 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
2394 | current_target.to_create_inferior = debug_to_create_inferior; | |
2395 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
2396 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
2397 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
2398 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
2399 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
2400 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
6604731b | 2401 | current_target.to_follow_fork = debug_to_follow_fork; |
c906108c SS |
2402 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
2403 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 2404 | current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call; |
c906108c SS |
2405 | current_target.to_has_exited = debug_to_has_exited; |
2406 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
2407 | current_target.to_can_run = debug_to_can_run; | |
2408 | current_target.to_notice_signals = debug_to_notice_signals; | |
2409 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 2410 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 2411 | current_target.to_stop = debug_to_stop; |
4b8a223f | 2412 | current_target.to_xfer_partial = debug_to_xfer_partial; |
96baa820 | 2413 | current_target.to_rcmd = debug_to_rcmd; |
c906108c SS |
2414 | current_target.to_enable_exception_callback = debug_to_enable_exception_callback; |
2415 | current_target.to_get_current_exception_event = debug_to_get_current_exception_event; | |
2416 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; | |
c906108c SS |
2417 | |
2418 | } | |
c906108c | 2419 | \f |
c5aa993b JM |
2420 | |
2421 | static char targ_desc[] = | |
2422 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
2423 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
2424 | core-file, and process, if any), as well as the symbol file name."; | |
2425 | ||
96baa820 JM |
2426 | static void |
2427 | do_monitor_command (char *cmd, | |
2428 | int from_tty) | |
2429 | { | |
2b5fe715 AC |
2430 | if ((current_target.to_rcmd |
2431 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 2432 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
2433 | && (debug_target.to_rcmd |
2434 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
96baa820 JM |
2435 | { |
2436 | error ("\"monitor\" command not supported by this target.\n"); | |
2437 | } | |
2438 | target_rcmd (cmd, gdb_stdtarg); | |
2439 | } | |
2440 | ||
c906108c | 2441 | void |
fba45db2 | 2442 | initialize_targets (void) |
c906108c SS |
2443 | { |
2444 | init_dummy_target (); | |
2445 | push_target (&dummy_target); | |
2446 | ||
2447 | add_info ("target", target_info, targ_desc); | |
2448 | add_info ("files", target_info, targ_desc); | |
2449 | ||
3a11626d MS |
2450 | add_show_from_set |
2451 | (add_set_cmd ("target", class_maintenance, var_zinteger, | |
2452 | (char *) &targetdebug, | |
2453 | "Set target debugging.\n\ | |
5d161b24 | 2454 | When non-zero, target debugging is enabled.", &setdebuglist), |
3a11626d MS |
2455 | &showdebuglist); |
2456 | ||
e707bbc2 AC |
2457 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
2458 | &trust_readonly, "\ | |
2459 | Set mode for reading from readonly sections.\n\ | |
3a11626d MS |
2460 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
2461 | will be read from the object file instead of from the target. This will\n\ | |
e707bbc2 | 2462 | result in significant performance improvement for remote targets.", "\ |
c0e624e7 | 2463 | Show mode for reading from readonly sections.\n", |
e707bbc2 AC |
2464 | NULL, NULL, |
2465 | &setlist, &showlist); | |
96baa820 JM |
2466 | |
2467 | add_com ("monitor", class_obscure, do_monitor_command, | |
2468 | "Send a command to the remote monitor (remote targets only)."); | |
2469 | ||
8add0441 | 2470 | target_dcache = dcache_init (); |
c906108c | 2471 | } |