Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 AC |
2 | |
3 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, | |
f90221d3 | 4 | 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
7998dfc3 | 5 | |
c906108c SS |
6 | Contributed by Cygnus Support. |
7 | ||
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b JM |
20 | You should have received a copy of the GNU General Public License |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
24 | |
25 | #include "defs.h" | |
26 | #include <errno.h> | |
c906108c SS |
27 | #include "gdb_string.h" |
28 | #include "target.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "symtab.h" | |
31 | #include "inferior.h" | |
32 | #include "bfd.h" | |
33 | #include "symfile.h" | |
34 | #include "objfiles.h" | |
03f2053f | 35 | #include "gdb_wait.h" |
4930751a | 36 | #include "dcache.h" |
c906108c | 37 | #include <signal.h> |
4e052eda | 38 | #include "regcache.h" |
0088c768 | 39 | #include "gdb_assert.h" |
b6591e8b | 40 | #include "gdbcore.h" |
c906108c | 41 | |
a14ed312 | 42 | static void target_info (char *, int); |
c906108c | 43 | |
a14ed312 | 44 | static void maybe_kill_then_attach (char *, int); |
c906108c | 45 | |
a14ed312 | 46 | static void kill_or_be_killed (int); |
c906108c | 47 | |
a14ed312 | 48 | static void default_terminal_info (char *, int); |
c906108c | 49 | |
ccaa32c7 GS |
50 | static int default_region_size_ok_for_hw_watchpoint (int); |
51 | ||
a14ed312 | 52 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 53 | |
a14ed312 | 54 | static void tcomplain (void); |
c906108c | 55 | |
a14ed312 | 56 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 57 | |
a14ed312 | 58 | static int return_zero (void); |
c906108c | 59 | |
a14ed312 | 60 | static int return_one (void); |
c906108c | 61 | |
ccaa32c7 GS |
62 | static int return_minus_one (void); |
63 | ||
a14ed312 | 64 | void target_ignore (void); |
c906108c | 65 | |
a14ed312 | 66 | static void target_command (char *, int); |
c906108c | 67 | |
a14ed312 | 68 | static struct target_ops *find_default_run_target (char *); |
c906108c | 69 | |
a14ed312 | 70 | static void nosupport_runtime (void); |
392a587b | 71 | |
4b8a223f | 72 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 73 | enum target_object object, |
1b0ba102 AC |
74 | const char *annex, gdb_byte *readbuf, |
75 | const gdb_byte *writebuf, | |
8aa91c1e | 76 | ULONGEST offset, LONGEST len); |
0088c768 | 77 | |
917317f4 JM |
78 | /* Transfer LEN bytes between target address MEMADDR and GDB address |
79 | MYADDR. Returns 0 for success, errno code for failure (which | |
80 | includes partial transfers -- if you want a more useful response to | |
81 | partial transfers, try either target_read_memory_partial or | |
82 | target_write_memory_partial). */ | |
c906108c | 83 | |
1b0ba102 | 84 | static int target_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, |
570b8f7c | 85 | int write); |
c906108c | 86 | |
a14ed312 | 87 | static void init_dummy_target (void); |
c906108c | 88 | |
aa869812 AC |
89 | static struct target_ops debug_target; |
90 | ||
a14ed312 | 91 | static void debug_to_open (char *, int); |
c906108c | 92 | |
a14ed312 | 93 | static void debug_to_close (int); |
c906108c | 94 | |
a14ed312 | 95 | static void debug_to_attach (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void debug_to_detach (char *, int); |
c906108c | 98 | |
6ad8ae5c DJ |
99 | static void debug_to_disconnect (char *, int); |
100 | ||
39f77062 | 101 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 102 | |
39f77062 | 103 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 104 | |
a14ed312 | 105 | static void debug_to_fetch_registers (int); |
c906108c | 106 | |
a14ed312 | 107 | static void debug_to_store_registers (int); |
c906108c | 108 | |
a14ed312 | 109 | static void debug_to_prepare_to_store (void); |
c906108c | 110 | |
a14ed312 | 111 | static void debug_to_files_info (struct target_ops *); |
c906108c | 112 | |
fc1a4b47 | 113 | static int debug_to_insert_breakpoint (CORE_ADDR, gdb_byte *); |
c906108c | 114 | |
fc1a4b47 | 115 | static int debug_to_remove_breakpoint (CORE_ADDR, gdb_byte *); |
c906108c | 116 | |
ccaa32c7 GS |
117 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
118 | ||
c6826062 | 119 | static int debug_to_insert_hw_breakpoint (CORE_ADDR, gdb_byte *); |
ccaa32c7 | 120 | |
c6826062 | 121 | static int debug_to_remove_hw_breakpoint (CORE_ADDR, gdb_byte *); |
ccaa32c7 GS |
122 | |
123 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
124 | ||
125 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
126 | ||
127 | static int debug_to_stopped_by_watchpoint (void); | |
128 | ||
4aa7a7f5 | 129 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 GS |
130 | |
131 | static int debug_to_region_size_ok_for_hw_watchpoint (int); | |
132 | ||
a14ed312 | 133 | static void debug_to_terminal_init (void); |
c906108c | 134 | |
a14ed312 | 135 | static void debug_to_terminal_inferior (void); |
c906108c | 136 | |
a14ed312 | 137 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 138 | |
a790ad35 SC |
139 | static void debug_to_terminal_save_ours (void); |
140 | ||
a14ed312 | 141 | static void debug_to_terminal_ours (void); |
c906108c | 142 | |
a14ed312 | 143 | static void debug_to_terminal_info (char *, int); |
c906108c | 144 | |
a14ed312 | 145 | static void debug_to_kill (void); |
c906108c | 146 | |
a14ed312 | 147 | static void debug_to_load (char *, int); |
c906108c | 148 | |
a14ed312 | 149 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 150 | |
a14ed312 | 151 | static void debug_to_mourn_inferior (void); |
c906108c | 152 | |
a14ed312 | 153 | static int debug_to_can_run (void); |
c906108c | 154 | |
39f77062 | 155 | static void debug_to_notice_signals (ptid_t); |
c906108c | 156 | |
39f77062 | 157 | static int debug_to_thread_alive (ptid_t); |
c906108c | 158 | |
a14ed312 | 159 | static void debug_to_stop (void); |
c906108c | 160 | |
5ac10fd1 AC |
161 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
162 | wierd and mysterious ways. Putting the variable here lets those | |
163 | wierd and mysterious ways keep building while they are being | |
164 | converted to the inferior inheritance structure. */ | |
1df84f13 | 165 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 166 | |
c906108c SS |
167 | /* Pointer to array of target architecture structures; the size of the |
168 | array; the current index into the array; the allocated size of the | |
169 | array. */ | |
170 | struct target_ops **target_structs; | |
171 | unsigned target_struct_size; | |
172 | unsigned target_struct_index; | |
173 | unsigned target_struct_allocsize; | |
174 | #define DEFAULT_ALLOCSIZE 10 | |
175 | ||
176 | /* The initial current target, so that there is always a semi-valid | |
177 | current target. */ | |
178 | ||
179 | static struct target_ops dummy_target; | |
180 | ||
181 | /* Top of target stack. */ | |
182 | ||
258b763a | 183 | static struct target_ops *target_stack; |
c906108c SS |
184 | |
185 | /* The target structure we are currently using to talk to a process | |
186 | or file or whatever "inferior" we have. */ | |
187 | ||
188 | struct target_ops current_target; | |
189 | ||
190 | /* Command list for target. */ | |
191 | ||
192 | static struct cmd_list_element *targetlist = NULL; | |
193 | ||
194 | /* Nonzero if we are debugging an attached outside process | |
195 | rather than an inferior. */ | |
196 | ||
197 | int attach_flag; | |
198 | ||
c906108c SS |
199 | /* Non-zero if we want to see trace of target level stuff. */ |
200 | ||
201 | static int targetdebug = 0; | |
920d2a44 AC |
202 | static void |
203 | show_targetdebug (struct ui_file *file, int from_tty, | |
204 | struct cmd_list_element *c, const char *value) | |
205 | { | |
206 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
207 | } | |
c906108c | 208 | |
a14ed312 | 209 | static void setup_target_debug (void); |
c906108c | 210 | |
4930751a C |
211 | DCACHE *target_dcache; |
212 | ||
c906108c SS |
213 | /* The user just typed 'target' without the name of a target. */ |
214 | ||
c906108c | 215 | static void |
fba45db2 | 216 | target_command (char *arg, int from_tty) |
c906108c SS |
217 | { |
218 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
219 | gdb_stdout); | |
220 | } | |
221 | ||
222 | /* Add a possible target architecture to the list. */ | |
223 | ||
224 | void | |
fba45db2 | 225 | add_target (struct target_ops *t) |
c906108c | 226 | { |
0088c768 | 227 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
228 | if (t->to_xfer_partial == NULL) |
229 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 230 | |
c906108c SS |
231 | if (!target_structs) |
232 | { | |
233 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
234 | target_structs = (struct target_ops **) xmalloc | |
235 | (target_struct_allocsize * sizeof (*target_structs)); | |
236 | } | |
237 | if (target_struct_size >= target_struct_allocsize) | |
238 | { | |
239 | target_struct_allocsize *= 2; | |
240 | target_structs = (struct target_ops **) | |
c5aa993b JM |
241 | xrealloc ((char *) target_structs, |
242 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
243 | } |
244 | target_structs[target_struct_size++] = t; | |
c906108c SS |
245 | |
246 | if (targetlist == NULL) | |
1bedd215 AC |
247 | add_prefix_cmd ("target", class_run, target_command, _("\ |
248 | Connect to a target machine or process.\n\ | |
c906108c SS |
249 | The first argument is the type or protocol of the target machine.\n\ |
250 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
251 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 252 | `help target ' followed by the protocol name."), |
c906108c SS |
253 | &targetlist, "target ", 0, &cmdlist); |
254 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
255 | } | |
256 | ||
257 | /* Stub functions */ | |
258 | ||
259 | void | |
fba45db2 | 260 | target_ignore (void) |
c906108c SS |
261 | { |
262 | } | |
263 | ||
11cf8741 JM |
264 | void |
265 | target_load (char *arg, int from_tty) | |
266 | { | |
4930751a | 267 | dcache_invalidate (target_dcache); |
11cf8741 JM |
268 | (*current_target.to_load) (arg, from_tty); |
269 | } | |
270 | ||
c906108c | 271 | static int |
fba45db2 KB |
272 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
273 | struct target_ops *t) | |
c906108c | 274 | { |
c5aa993b JM |
275 | errno = EIO; /* Can't read/write this location */ |
276 | return 0; /* No bytes handled */ | |
c906108c SS |
277 | } |
278 | ||
279 | static void | |
fba45db2 | 280 | tcomplain (void) |
c906108c | 281 | { |
8a3fe4f8 | 282 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
283 | current_target.to_shortname); |
284 | } | |
285 | ||
286 | void | |
fba45db2 | 287 | noprocess (void) |
c906108c | 288 | { |
8a3fe4f8 | 289 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
290 | } |
291 | ||
c906108c | 292 | static int |
fba45db2 | 293 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 294 | { |
c5aa993b | 295 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
296 | } |
297 | ||
392a587b | 298 | static void |
fba45db2 | 299 | nosupport_runtime (void) |
c906108c | 300 | { |
39f77062 | 301 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
302 | noprocess (); |
303 | else | |
8a3fe4f8 | 304 | error (_("No run-time support for this")); |
c906108c SS |
305 | } |
306 | ||
307 | ||
c906108c | 308 | static void |
fba45db2 | 309 | default_terminal_info (char *args, int from_tty) |
c906108c | 310 | { |
a3f17187 | 311 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
312 | } |
313 | ||
314 | /* This is the default target_create_inferior and target_attach function. | |
315 | If the current target is executing, it asks whether to kill it off. | |
316 | If this function returns without calling error(), it has killed off | |
317 | the target, and the operation should be attempted. */ | |
318 | ||
319 | static void | |
fba45db2 | 320 | kill_or_be_killed (int from_tty) |
c906108c SS |
321 | { |
322 | if (target_has_execution) | |
323 | { | |
a3f17187 | 324 | printf_unfiltered (_("You are already running a program:\n")); |
c906108c | 325 | target_files_info (); |
c5aa993b JM |
326 | if (query ("Kill it? ")) |
327 | { | |
328 | target_kill (); | |
329 | if (target_has_execution) | |
8a3fe4f8 | 330 | error (_("Killing the program did not help.")); |
c5aa993b JM |
331 | return; |
332 | } | |
333 | else | |
334 | { | |
8a3fe4f8 | 335 | error (_("Program not killed.")); |
c5aa993b | 336 | } |
c906108c | 337 | } |
c5aa993b | 338 | tcomplain (); |
c906108c SS |
339 | } |
340 | ||
341 | static void | |
fba45db2 | 342 | maybe_kill_then_attach (char *args, int from_tty) |
c906108c SS |
343 | { |
344 | kill_or_be_killed (from_tty); | |
345 | target_attach (args, from_tty); | |
346 | } | |
347 | ||
348 | static void | |
c27cda74 AC |
349 | maybe_kill_then_create_inferior (char *exec, char *args, char **env, |
350 | int from_tty) | |
c906108c SS |
351 | { |
352 | kill_or_be_killed (0); | |
c27cda74 | 353 | target_create_inferior (exec, args, env, from_tty); |
c906108c SS |
354 | } |
355 | ||
7998dfc3 AC |
356 | /* Go through the target stack from top to bottom, copying over zero |
357 | entries in current_target, then filling in still empty entries. In | |
358 | effect, we are doing class inheritance through the pushed target | |
359 | vectors. | |
360 | ||
361 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
362 | is currently implemented, is that it discards any knowledge of | |
363 | which target an inherited method originally belonged to. | |
364 | Consequently, new new target methods should instead explicitly and | |
365 | locally search the target stack for the target that can handle the | |
366 | request. */ | |
c906108c SS |
367 | |
368 | static void | |
7998dfc3 | 369 | update_current_target (void) |
c906108c | 370 | { |
7998dfc3 AC |
371 | struct target_ops *t; |
372 | ||
373 | /* First, reset curren'ts contents. */ | |
374 | memset (¤t_target, 0, sizeof (current_target)); | |
375 | ||
376 | #define INHERIT(FIELD, TARGET) \ | |
377 | if (!current_target.FIELD) \ | |
378 | current_target.FIELD = (TARGET)->FIELD | |
379 | ||
380 | for (t = target_stack; t; t = t->beneath) | |
381 | { | |
382 | INHERIT (to_shortname, t); | |
383 | INHERIT (to_longname, t); | |
384 | INHERIT (to_doc, t); | |
385 | INHERIT (to_open, t); | |
386 | INHERIT (to_close, t); | |
387 | INHERIT (to_attach, t); | |
388 | INHERIT (to_post_attach, t); | |
389 | INHERIT (to_detach, t); | |
390 | INHERIT (to_disconnect, t); | |
391 | INHERIT (to_resume, t); | |
392 | INHERIT (to_wait, t); | |
7998dfc3 AC |
393 | INHERIT (to_fetch_registers, t); |
394 | INHERIT (to_store_registers, t); | |
395 | INHERIT (to_prepare_to_store, t); | |
c8e73a31 | 396 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
397 | INHERIT (to_files_info, t); |
398 | INHERIT (to_insert_breakpoint, t); | |
399 | INHERIT (to_remove_breakpoint, t); | |
400 | INHERIT (to_can_use_hw_breakpoint, t); | |
401 | INHERIT (to_insert_hw_breakpoint, t); | |
402 | INHERIT (to_remove_hw_breakpoint, t); | |
403 | INHERIT (to_insert_watchpoint, t); | |
404 | INHERIT (to_remove_watchpoint, t); | |
405 | INHERIT (to_stopped_data_address, t); | |
406 | INHERIT (to_stopped_by_watchpoint, t); | |
407 | INHERIT (to_have_continuable_watchpoint, t); | |
408 | INHERIT (to_region_size_ok_for_hw_watchpoint, t); | |
409 | INHERIT (to_terminal_init, t); | |
410 | INHERIT (to_terminal_inferior, t); | |
411 | INHERIT (to_terminal_ours_for_output, t); | |
412 | INHERIT (to_terminal_ours, t); | |
413 | INHERIT (to_terminal_save_ours, t); | |
414 | INHERIT (to_terminal_info, t); | |
415 | INHERIT (to_kill, t); | |
416 | INHERIT (to_load, t); | |
417 | INHERIT (to_lookup_symbol, t); | |
418 | INHERIT (to_create_inferior, t); | |
419 | INHERIT (to_post_startup_inferior, t); | |
420 | INHERIT (to_acknowledge_created_inferior, t); | |
421 | INHERIT (to_insert_fork_catchpoint, t); | |
422 | INHERIT (to_remove_fork_catchpoint, t); | |
423 | INHERIT (to_insert_vfork_catchpoint, t); | |
424 | INHERIT (to_remove_vfork_catchpoint, t); | |
425 | INHERIT (to_follow_fork, t); | |
426 | INHERIT (to_insert_exec_catchpoint, t); | |
427 | INHERIT (to_remove_exec_catchpoint, t); | |
428 | INHERIT (to_reported_exec_events_per_exec_call, t); | |
429 | INHERIT (to_has_exited, t); | |
430 | INHERIT (to_mourn_inferior, t); | |
431 | INHERIT (to_can_run, t); | |
432 | INHERIT (to_notice_signals, t); | |
433 | INHERIT (to_thread_alive, t); | |
434 | INHERIT (to_find_new_threads, t); | |
435 | INHERIT (to_pid_to_str, t); | |
436 | INHERIT (to_extra_thread_info, t); | |
437 | INHERIT (to_stop, t); | |
4b8a223f | 438 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 AC |
439 | INHERIT (to_rcmd, t); |
440 | INHERIT (to_enable_exception_callback, t); | |
441 | INHERIT (to_get_current_exception_event, t); | |
442 | INHERIT (to_pid_to_exec_file, t); | |
443 | INHERIT (to_stratum, t); | |
444 | INHERIT (to_has_all_memory, t); | |
445 | INHERIT (to_has_memory, t); | |
446 | INHERIT (to_has_stack, t); | |
447 | INHERIT (to_has_registers, t); | |
448 | INHERIT (to_has_execution, t); | |
449 | INHERIT (to_has_thread_control, t); | |
450 | INHERIT (to_sections, t); | |
451 | INHERIT (to_sections_end, t); | |
452 | INHERIT (to_can_async_p, t); | |
453 | INHERIT (to_is_async_p, t); | |
454 | INHERIT (to_async, t); | |
455 | INHERIT (to_async_mask_value, t); | |
456 | INHERIT (to_find_memory_regions, t); | |
457 | INHERIT (to_make_corefile_notes, t); | |
458 | INHERIT (to_get_thread_local_address, t); | |
459 | INHERIT (to_magic, t); | |
460 | } | |
461 | #undef INHERIT | |
462 | ||
463 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
464 | it. Some entries are defaulted to a method that print an error, |
465 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
466 | |
467 | #define de_fault(field, value) \ | |
7998dfc3 AC |
468 | if (!current_target.field) \ |
469 | current_target.field = value | |
0d06e24b JM |
470 | |
471 | de_fault (to_open, | |
472 | (void (*) (char *, int)) | |
473 | tcomplain); | |
474 | de_fault (to_close, | |
475 | (void (*) (int)) | |
476 | target_ignore); | |
477 | de_fault (to_attach, | |
478 | maybe_kill_then_attach); | |
479 | de_fault (to_post_attach, | |
480 | (void (*) (int)) | |
481 | target_ignore); | |
0d06e24b JM |
482 | de_fault (to_detach, |
483 | (void (*) (char *, int)) | |
484 | target_ignore); | |
6ad8ae5c DJ |
485 | de_fault (to_disconnect, |
486 | (void (*) (char *, int)) | |
487 | tcomplain); | |
0d06e24b | 488 | de_fault (to_resume, |
39f77062 | 489 | (void (*) (ptid_t, int, enum target_signal)) |
0d06e24b JM |
490 | noprocess); |
491 | de_fault (to_wait, | |
39f77062 | 492 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) |
0d06e24b | 493 | noprocess); |
0d06e24b JM |
494 | de_fault (to_fetch_registers, |
495 | (void (*) (int)) | |
496 | target_ignore); | |
497 | de_fault (to_store_registers, | |
498 | (void (*) (int)) | |
499 | noprocess); | |
500 | de_fault (to_prepare_to_store, | |
501 | (void (*) (void)) | |
502 | noprocess); | |
c8e73a31 | 503 | de_fault (deprecated_xfer_memory, |
1b0ba102 | 504 | (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *)) |
0d06e24b JM |
505 | nomemory); |
506 | de_fault (to_files_info, | |
507 | (void (*) (struct target_ops *)) | |
508 | target_ignore); | |
509 | de_fault (to_insert_breakpoint, | |
510 | memory_insert_breakpoint); | |
511 | de_fault (to_remove_breakpoint, | |
512 | memory_remove_breakpoint); | |
ccaa32c7 GS |
513 | de_fault (to_can_use_hw_breakpoint, |
514 | (int (*) (int, int, int)) | |
515 | return_zero); | |
516 | de_fault (to_insert_hw_breakpoint, | |
c6826062 | 517 | (int (*) (CORE_ADDR, gdb_byte *)) |
ccaa32c7 GS |
518 | return_minus_one); |
519 | de_fault (to_remove_hw_breakpoint, | |
c6826062 | 520 | (int (*) (CORE_ADDR, gdb_byte *)) |
ccaa32c7 GS |
521 | return_minus_one); |
522 | de_fault (to_insert_watchpoint, | |
523 | (int (*) (CORE_ADDR, int, int)) | |
524 | return_minus_one); | |
525 | de_fault (to_remove_watchpoint, | |
526 | (int (*) (CORE_ADDR, int, int)) | |
527 | return_minus_one); | |
528 | de_fault (to_stopped_by_watchpoint, | |
529 | (int (*) (void)) | |
530 | return_zero); | |
531 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 532 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 GS |
533 | return_zero); |
534 | de_fault (to_region_size_ok_for_hw_watchpoint, | |
535 | default_region_size_ok_for_hw_watchpoint); | |
0d06e24b JM |
536 | de_fault (to_terminal_init, |
537 | (void (*) (void)) | |
538 | target_ignore); | |
539 | de_fault (to_terminal_inferior, | |
540 | (void (*) (void)) | |
541 | target_ignore); | |
542 | de_fault (to_terminal_ours_for_output, | |
543 | (void (*) (void)) | |
544 | target_ignore); | |
545 | de_fault (to_terminal_ours, | |
546 | (void (*) (void)) | |
547 | target_ignore); | |
a790ad35 SC |
548 | de_fault (to_terminal_save_ours, |
549 | (void (*) (void)) | |
550 | target_ignore); | |
0d06e24b JM |
551 | de_fault (to_terminal_info, |
552 | default_terminal_info); | |
553 | de_fault (to_kill, | |
554 | (void (*) (void)) | |
555 | noprocess); | |
556 | de_fault (to_load, | |
557 | (void (*) (char *, int)) | |
558 | tcomplain); | |
559 | de_fault (to_lookup_symbol, | |
560 | (int (*) (char *, CORE_ADDR *)) | |
561 | nosymbol); | |
562 | de_fault (to_create_inferior, | |
563 | maybe_kill_then_create_inferior); | |
564 | de_fault (to_post_startup_inferior, | |
39f77062 | 565 | (void (*) (ptid_t)) |
0d06e24b JM |
566 | target_ignore); |
567 | de_fault (to_acknowledge_created_inferior, | |
568 | (void (*) (int)) | |
569 | target_ignore); | |
0d06e24b | 570 | de_fault (to_insert_fork_catchpoint, |
fa113d1a | 571 | (void (*) (int)) |
0d06e24b JM |
572 | tcomplain); |
573 | de_fault (to_remove_fork_catchpoint, | |
574 | (int (*) (int)) | |
575 | tcomplain); | |
576 | de_fault (to_insert_vfork_catchpoint, | |
fa113d1a | 577 | (void (*) (int)) |
0d06e24b JM |
578 | tcomplain); |
579 | de_fault (to_remove_vfork_catchpoint, | |
580 | (int (*) (int)) | |
581 | tcomplain); | |
4c9ba7e0 | 582 | de_fault (to_follow_fork, |
6604731b | 583 | (int (*) (int)) |
0d06e24b JM |
584 | target_ignore); |
585 | de_fault (to_insert_exec_catchpoint, | |
fa113d1a | 586 | (void (*) (int)) |
0d06e24b JM |
587 | tcomplain); |
588 | de_fault (to_remove_exec_catchpoint, | |
589 | (int (*) (int)) | |
590 | tcomplain); | |
0d06e24b JM |
591 | de_fault (to_reported_exec_events_per_exec_call, |
592 | (int (*) (void)) | |
593 | return_one); | |
0d06e24b JM |
594 | de_fault (to_has_exited, |
595 | (int (*) (int, int, int *)) | |
596 | return_zero); | |
597 | de_fault (to_mourn_inferior, | |
598 | (void (*) (void)) | |
599 | noprocess); | |
600 | de_fault (to_can_run, | |
601 | return_zero); | |
602 | de_fault (to_notice_signals, | |
39f77062 | 603 | (void (*) (ptid_t)) |
0d06e24b JM |
604 | target_ignore); |
605 | de_fault (to_thread_alive, | |
39f77062 | 606 | (int (*) (ptid_t)) |
0d06e24b JM |
607 | return_zero); |
608 | de_fault (to_find_new_threads, | |
609 | (void (*) (void)) | |
610 | target_ignore); | |
611 | de_fault (to_extra_thread_info, | |
612 | (char *(*) (struct thread_info *)) | |
613 | return_zero); | |
614 | de_fault (to_stop, | |
615 | (void (*) (void)) | |
616 | target_ignore); | |
4b8a223f | 617 | current_target.to_xfer_partial = default_xfer_partial; |
0d06e24b | 618 | de_fault (to_rcmd, |
d9fcf2fb | 619 | (void (*) (char *, struct ui_file *)) |
0d06e24b JM |
620 | tcomplain); |
621 | de_fault (to_enable_exception_callback, | |
622 | (struct symtab_and_line * (*) (enum exception_event_kind, int)) | |
623 | nosupport_runtime); | |
624 | de_fault (to_get_current_exception_event, | |
625 | (struct exception_event_record * (*) (void)) | |
626 | nosupport_runtime); | |
627 | de_fault (to_pid_to_exec_file, | |
628 | (char *(*) (int)) | |
629 | return_zero); | |
0d06e24b JM |
630 | de_fault (to_can_async_p, |
631 | (int (*) (void)) | |
632 | return_zero); | |
633 | de_fault (to_is_async_p, | |
634 | (int (*) (void)) | |
635 | return_zero); | |
636 | de_fault (to_async, | |
637 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
638 | tcomplain); | |
c906108c | 639 | #undef de_fault |
c906108c | 640 | |
7998dfc3 AC |
641 | /* Finally, position the target-stack beneath the squashed |
642 | "current_target". That way code looking for a non-inherited | |
643 | target method can quickly and simply find it. */ | |
644 | current_target.beneath = target_stack; | |
c906108c SS |
645 | } |
646 | ||
647 | /* Push a new target type into the stack of the existing target accessors, | |
648 | possibly superseding some of the existing accessors. | |
649 | ||
650 | Result is zero if the pushed target ended up on top of the stack, | |
651 | nonzero if at least one target is on top of it. | |
652 | ||
653 | Rather than allow an empty stack, we always have the dummy target at | |
654 | the bottom stratum, so we can call the function vectors without | |
655 | checking them. */ | |
656 | ||
657 | int | |
fba45db2 | 658 | push_target (struct target_ops *t) |
c906108c | 659 | { |
258b763a | 660 | struct target_ops **cur; |
c906108c SS |
661 | |
662 | /* Check magic number. If wrong, it probably means someone changed | |
663 | the struct definition, but not all the places that initialize one. */ | |
664 | if (t->to_magic != OPS_MAGIC) | |
665 | { | |
c5aa993b JM |
666 | fprintf_unfiltered (gdb_stderr, |
667 | "Magic number of %s target struct wrong\n", | |
668 | t->to_shortname); | |
e2e0b3e5 | 669 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
670 | } |
671 | ||
258b763a AC |
672 | /* Find the proper stratum to install this target in. */ |
673 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 674 | { |
258b763a | 675 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
676 | break; |
677 | } | |
678 | ||
258b763a AC |
679 | /* If there's already targets at this stratum, remove them. */ |
680 | /* FIXME: cagney/2003-10-15: I think this should be poping all | |
681 | targets to CUR, and not just those at this stratum level. */ | |
682 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
683 | { | |
684 | /* There's already something at this stratum level. Close it, | |
685 | and un-hook it from the stack. */ | |
686 | struct target_ops *tmp = (*cur); | |
687 | (*cur) = (*cur)->beneath; | |
688 | tmp->beneath = NULL; | |
f1c07ab0 | 689 | target_close (tmp, 0); |
258b763a | 690 | } |
c906108c SS |
691 | |
692 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
693 | t->beneath = (*cur); |
694 | (*cur) = t; | |
c906108c SS |
695 | |
696 | update_current_target (); | |
697 | ||
c906108c SS |
698 | if (targetdebug) |
699 | setup_target_debug (); | |
c906108c | 700 | |
258b763a AC |
701 | /* Not on top? */ |
702 | return (t != target_stack); | |
c906108c SS |
703 | } |
704 | ||
705 | /* Remove a target_ops vector from the stack, wherever it may be. | |
706 | Return how many times it was removed (0 or 1). */ | |
707 | ||
708 | int | |
fba45db2 | 709 | unpush_target (struct target_ops *t) |
c906108c | 710 | { |
258b763a AC |
711 | struct target_ops **cur; |
712 | struct target_ops *tmp; | |
c906108c | 713 | |
c906108c SS |
714 | /* Look for the specified target. Note that we assume that a target |
715 | can only occur once in the target stack. */ | |
716 | ||
258b763a AC |
717 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
718 | { | |
719 | if ((*cur) == t) | |
720 | break; | |
721 | } | |
c906108c | 722 | |
258b763a | 723 | if ((*cur) == NULL) |
c906108c SS |
724 | return 0; /* Didn't find target_ops, quit now */ |
725 | ||
5269965e AC |
726 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
727 | unconditional by moving it to before the above check that the | |
728 | target was in the target stack (something about "Change the way | |
729 | pushing and popping of targets work to support target overlays | |
730 | and inheritance"). This doesn't make much sense - only open | |
731 | targets should be closed. */ | |
732 | target_close (t, 0); | |
733 | ||
c906108c | 734 | /* Unchain the target */ |
258b763a AC |
735 | tmp = (*cur); |
736 | (*cur) = (*cur)->beneath; | |
737 | tmp->beneath = NULL; | |
c906108c SS |
738 | |
739 | update_current_target (); | |
c906108c SS |
740 | |
741 | return 1; | |
742 | } | |
743 | ||
744 | void | |
fba45db2 | 745 | pop_target (void) |
c906108c | 746 | { |
f1c07ab0 | 747 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 748 | if (unpush_target (target_stack) == 1) |
c906108c SS |
749 | return; |
750 | ||
c5aa993b JM |
751 | fprintf_unfiltered (gdb_stderr, |
752 | "pop_target couldn't find target %s\n", | |
753 | current_target.to_shortname); | |
e2e0b3e5 | 754 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
755 | } |
756 | ||
757 | #undef MIN | |
758 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
759 | ||
760 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
761 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
762 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
763 | is responsible for freeing it. Return the number of bytes successfully | |
764 | read. */ | |
765 | ||
766 | int | |
fba45db2 | 767 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
768 | { |
769 | int tlen, origlen, offset, i; | |
1b0ba102 | 770 | gdb_byte buf[4]; |
c906108c SS |
771 | int errcode = 0; |
772 | char *buffer; | |
773 | int buffer_allocated; | |
774 | char *bufptr; | |
775 | unsigned int nbytes_read = 0; | |
776 | ||
777 | /* Small for testing. */ | |
778 | buffer_allocated = 4; | |
779 | buffer = xmalloc (buffer_allocated); | |
780 | bufptr = buffer; | |
781 | ||
782 | origlen = len; | |
783 | ||
784 | while (len > 0) | |
785 | { | |
786 | tlen = MIN (len, 4 - (memaddr & 3)); | |
787 | offset = memaddr & 3; | |
788 | ||
1b0ba102 | 789 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
790 | if (errcode != 0) |
791 | { | |
792 | /* The transfer request might have crossed the boundary to an | |
793 | unallocated region of memory. Retry the transfer, requesting | |
794 | a single byte. */ | |
795 | tlen = 1; | |
796 | offset = 0; | |
b8eb5af0 | 797 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
798 | if (errcode != 0) |
799 | goto done; | |
800 | } | |
801 | ||
802 | if (bufptr - buffer + tlen > buffer_allocated) | |
803 | { | |
804 | unsigned int bytes; | |
805 | bytes = bufptr - buffer; | |
806 | buffer_allocated *= 2; | |
807 | buffer = xrealloc (buffer, buffer_allocated); | |
808 | bufptr = buffer + bytes; | |
809 | } | |
810 | ||
811 | for (i = 0; i < tlen; i++) | |
812 | { | |
813 | *bufptr++ = buf[i + offset]; | |
814 | if (buf[i + offset] == '\000') | |
815 | { | |
816 | nbytes_read += i + 1; | |
817 | goto done; | |
818 | } | |
819 | } | |
820 | ||
821 | memaddr += tlen; | |
822 | len -= tlen; | |
823 | nbytes_read += tlen; | |
824 | } | |
c5aa993b | 825 | done: |
c906108c SS |
826 | if (errnop != NULL) |
827 | *errnop = errcode; | |
828 | if (string != NULL) | |
829 | *string = buffer; | |
830 | return nbytes_read; | |
831 | } | |
832 | ||
8db32d44 AC |
833 | /* Find a section containing ADDR. */ |
834 | struct section_table * | |
835 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
836 | { | |
837 | struct section_table *secp; | |
838 | for (secp = target->to_sections; | |
839 | secp < target->to_sections_end; | |
840 | secp++) | |
841 | { | |
842 | if (addr >= secp->addr && addr < secp->endaddr) | |
843 | return secp; | |
844 | } | |
845 | return NULL; | |
846 | } | |
847 | ||
0779438d AC |
848 | /* Return non-zero when the target vector has supplied an xfer_partial |
849 | method and it, rather than xfer_memory, should be used. */ | |
850 | static int | |
851 | target_xfer_partial_p (void) | |
852 | { | |
853 | return (target_stack != NULL | |
854 | && target_stack->to_xfer_partial != default_xfer_partial); | |
855 | } | |
856 | ||
27394598 AC |
857 | static LONGEST |
858 | target_xfer_partial (struct target_ops *ops, | |
859 | enum target_object object, const char *annex, | |
860 | void *readbuf, const void *writebuf, | |
861 | ULONGEST offset, LONGEST len) | |
862 | { | |
863 | LONGEST retval; | |
864 | ||
865 | gdb_assert (ops->to_xfer_partial != NULL); | |
866 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, writebuf, | |
867 | offset, len); | |
868 | if (targetdebug) | |
869 | { | |
870 | const unsigned char *myaddr = NULL; | |
871 | ||
872 | fprintf_unfiltered (gdb_stdlog, | |
873 | "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s", | |
874 | ops->to_shortname, | |
875 | (int) object, | |
876 | (annex ? annex : "(null)"), | |
877 | (long) readbuf, (long) writebuf, | |
878 | paddr_nz (offset), paddr_d (len), paddr_d (retval)); | |
879 | ||
880 | if (readbuf) | |
881 | myaddr = readbuf; | |
882 | if (writebuf) | |
883 | myaddr = writebuf; | |
884 | if (retval > 0 && myaddr != NULL) | |
885 | { | |
886 | int i; | |
887 | ||
888 | fputs_unfiltered (", bytes =", gdb_stdlog); | |
889 | for (i = 0; i < retval; i++) | |
890 | { | |
891 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
892 | { | |
893 | if (targetdebug < 2 && i > 0) | |
894 | { | |
895 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
896 | break; | |
897 | } | |
898 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
899 | } | |
900 | ||
901 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); | |
902 | } | |
903 | } | |
904 | ||
905 | fputc_unfiltered ('\n', gdb_stdlog); | |
906 | } | |
907 | return retval; | |
908 | } | |
909 | ||
0779438d AC |
910 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
911 | inferior's KIND:ANNEX space and GDB's READBUF/WRITEBUF buffer. If | |
912 | the transfer succeeds, return zero, otherwize the host ERRNO is | |
913 | returned. | |
914 | ||
915 | The inferior is formed from several layers. In the case of | |
916 | corefiles, inf-corefile is layered above inf-exec and a request for | |
917 | text (corefiles do not include text pages) will be first sent to | |
918 | the core-stratum, fail, and then sent to the object-file where it | |
919 | will succeed. | |
920 | ||
921 | NOTE: cagney/2004-09-30: | |
922 | ||
923 | The old code tried to use four separate mechanisms for mapping an | |
924 | object:offset:len tuple onto an inferior and its address space: the | |
925 | target stack; the inferior's TO_SECTIONS; solib's SO_LIST; | |
926 | overlays. | |
927 | ||
928 | This is stupid. | |
929 | ||
930 | The code below is instead using a single mechanism (currently | |
931 | strata). If that mechanism proves insufficient then re-factor it | |
932 | implementing another singluar mechanism (for instance, a generic | |
933 | object:annex onto inferior:object:annex say). */ | |
934 | ||
cb85a953 | 935 | static LONGEST |
0779438d | 936 | xfer_using_stratum (enum target_object object, const char *annex, |
cb85a953 | 937 | ULONGEST offset, LONGEST len, void *readbuf, |
0779438d AC |
938 | const void *writebuf) |
939 | { | |
940 | LONGEST xfered; | |
941 | struct target_ops *target; | |
942 | ||
943 | /* Always successful. */ | |
944 | if (len == 0) | |
945 | return 0; | |
946 | /* Never successful. */ | |
947 | if (target_stack == NULL) | |
948 | return EIO; | |
949 | ||
950 | target = target_stack; | |
951 | while (1) | |
952 | { | |
27394598 | 953 | xfered = target_xfer_partial (target, object, annex, |
cb85a953 | 954 | readbuf, writebuf, offset, len); |
0779438d AC |
955 | if (xfered > 0) |
956 | { | |
957 | /* The partial xfer succeeded, update the counts, check that | |
958 | the xfer hasn't finished and if it hasn't set things up | |
959 | for the next round. */ | |
960 | len -= xfered; | |
961 | if (len <= 0) | |
962 | return 0; | |
cb85a953 AC |
963 | offset += xfered; |
964 | if (readbuf != NULL) | |
fc1a4b47 | 965 | readbuf = (gdb_byte *) readbuf + xfered; |
cb85a953 | 966 | if (writebuf != NULL) |
fc1a4b47 | 967 | writebuf = (gdb_byte *) writebuf + xfered; |
0779438d AC |
968 | target = target_stack; |
969 | } | |
970 | else if (xfered < 0) | |
971 | { | |
972 | /* Something totally screwed up, abandon the attempt to | |
973 | xfer. */ | |
974 | if (errno) | |
975 | return errno; | |
976 | else | |
977 | return EIO; | |
978 | } | |
979 | else | |
980 | { | |
981 | /* This "stratum" didn't work, try the next one down. */ | |
982 | target = target->beneath; | |
983 | if (target == NULL) | |
984 | return EIO; | |
985 | } | |
986 | } | |
987 | } | |
988 | ||
c906108c SS |
989 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
990 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
991 | if any error occurs. | |
992 | ||
993 | If an error occurs, no guarantee is made about the contents of the data at | |
994 | MYADDR. In particular, the caller should not depend upon partial reads | |
995 | filling the buffer with good data. There is no way for the caller to know | |
996 | how much good data might have been transfered anyway. Callers that can | |
997 | deal with partial reads should call target_read_memory_partial. */ | |
998 | ||
999 | int | |
fc1a4b47 | 1000 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 1001 | { |
0779438d AC |
1002 | if (target_xfer_partial_p ()) |
1003 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
1004 | memaddr, len, myaddr, NULL); | |
1005 | else | |
1006 | return target_xfer_memory (memaddr, myaddr, len, 0); | |
c906108c SS |
1007 | } |
1008 | ||
c906108c | 1009 | int |
fc1a4b47 | 1010 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1011 | { |
fc1a4b47 | 1012 | gdb_byte *bytes = alloca (len); |
10e2d419 | 1013 | memcpy (bytes, myaddr, len); |
0779438d AC |
1014 | if (target_xfer_partial_p ()) |
1015 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
10e2d419 | 1016 | memaddr, len, NULL, bytes); |
0779438d | 1017 | else |
10e2d419 | 1018 | return target_xfer_memory (memaddr, bytes, len, 1); |
c906108c | 1019 | } |
c5aa993b | 1020 | |
4aa7a7f5 JJ |
1021 | #ifndef target_stopped_data_address_p |
1022 | int | |
1023 | target_stopped_data_address_p (struct target_ops *target) | |
1024 | { | |
aa869812 AC |
1025 | if (target->to_stopped_data_address |
1026 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero) | |
4aa7a7f5 | 1027 | return 0; |
aa869812 AC |
1028 | if (target->to_stopped_data_address == debug_to_stopped_data_address |
1029 | && (debug_target.to_stopped_data_address | |
1030 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero)) | |
1031 | return 0; | |
1032 | return 1; | |
4aa7a7f5 JJ |
1033 | } |
1034 | #endif | |
1035 | ||
3a11626d | 1036 | static int trust_readonly = 0; |
920d2a44 AC |
1037 | static void |
1038 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1039 | struct cmd_list_element *c, const char *value) | |
1040 | { | |
1041 | fprintf_filtered (file, _("\ | |
1042 | Mode for reading from readonly sections is %s.\n"), | |
1043 | value); | |
1044 | } | |
3a11626d | 1045 | |
67e0617e C |
1046 | /* Move memory to or from the targets. The top target gets priority; |
1047 | if it cannot handle it, it is offered to the next one down, etc. | |
c906108c | 1048 | |
67e0617e | 1049 | Result is -1 on error, or the number of bytes transfered. */ |
c906108c | 1050 | |
4930751a | 1051 | int |
1b0ba102 | 1052 | do_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write, |
29e57380 | 1053 | struct mem_attrib *attrib) |
c906108c | 1054 | { |
c906108c | 1055 | int res; |
4930751a | 1056 | int done = 0; |
c906108c | 1057 | struct target_ops *t; |
c906108c SS |
1058 | |
1059 | /* Zero length requests are ok and require no work. */ | |
1060 | if (len == 0) | |
1061 | return 0; | |
1062 | ||
c8e73a31 AC |
1063 | /* deprecated_xfer_memory is not guaranteed to set errno, even when |
1064 | it returns 0. */ | |
c906108c SS |
1065 | errno = 0; |
1066 | ||
3a11626d MS |
1067 | if (!write && trust_readonly) |
1068 | { | |
8db32d44 | 1069 | struct section_table *secp; |
2ceb85d0 BE |
1070 | /* User-settable option, "trust-readonly-sections". If true, |
1071 | then memory from any SEC_READONLY bfd section may be read | |
8db32d44 AC |
1072 | directly from the bfd file. */ |
1073 | secp = target_section_by_addr (¤t_target, memaddr); | |
1074 | if (secp != NULL | |
1075 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1076 | & SEC_READONLY)) | |
1077 | return xfer_memory (memaddr, myaddr, len, 0, attrib, ¤t_target); | |
3a11626d MS |
1078 | } |
1079 | ||
67e0617e | 1080 | /* The quick case is that the top target can handle the transfer. */ |
c8e73a31 | 1081 | res = current_target.deprecated_xfer_memory |
29e57380 | 1082 | (memaddr, myaddr, len, write, attrib, ¤t_target); |
c906108c | 1083 | |
67e0617e C |
1084 | /* If res <= 0 then we call it again in the loop. Ah well. */ |
1085 | if (res <= 0) | |
c906108c | 1086 | { |
258b763a | 1087 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1088 | { |
c906108c SS |
1089 | if (!t->to_has_memory) |
1090 | continue; | |
1091 | ||
c8e73a31 | 1092 | res = t->deprecated_xfer_memory (memaddr, myaddr, len, write, attrib, t); |
c906108c SS |
1093 | if (res > 0) |
1094 | break; /* Handled all or part of xfer */ | |
1095 | if (t->to_has_all_memory) | |
1096 | break; | |
1097 | } | |
1098 | ||
4930751a | 1099 | if (res <= 0) |
67e0617e | 1100 | return -1; |
4930751a | 1101 | } |
67e0617e C |
1102 | |
1103 | return res; | |
4930751a C |
1104 | } |
1105 | ||
67e0617e C |
1106 | |
1107 | /* Perform a memory transfer. Iterate until the entire region has | |
1108 | been transfered. | |
1109 | ||
1110 | Result is 0 or errno value. */ | |
1111 | ||
4930751a | 1112 | static int |
1b0ba102 | 1113 | target_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write) |
4930751a C |
1114 | { |
1115 | int res; | |
29e57380 C |
1116 | int reg_len; |
1117 | struct mem_region *region; | |
4930751a C |
1118 | |
1119 | /* Zero length requests are ok and require no work. */ | |
1120 | if (len == 0) | |
1121 | { | |
1122 | return 0; | |
1123 | } | |
1124 | ||
1125 | while (len > 0) | |
1126 | { | |
29e57380 C |
1127 | region = lookup_mem_region(memaddr); |
1128 | if (memaddr + len < region->hi) | |
1129 | reg_len = len; | |
1130 | else | |
1131 | reg_len = region->hi - memaddr; | |
1132 | ||
1133 | switch (region->attrib.mode) | |
c906108c | 1134 | { |
29e57380 C |
1135 | case MEM_RO: |
1136 | if (write) | |
1137 | return EIO; | |
1138 | break; | |
1139 | ||
1140 | case MEM_WO: | |
c906108c | 1141 | if (!write) |
c906108c | 1142 | return EIO; |
29e57380 | 1143 | break; |
c906108c | 1144 | } |
4930751a | 1145 | |
29e57380 C |
1146 | while (reg_len > 0) |
1147 | { | |
1148 | if (region->attrib.cache) | |
8add0441 | 1149 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, |
1b0ba102 | 1150 | reg_len, write); |
29e57380 | 1151 | else |
8add0441 | 1152 | res = do_xfer_memory (memaddr, myaddr, reg_len, write, |
29e57380 C |
1153 | ®ion->attrib); |
1154 | ||
1155 | if (res <= 0) | |
1156 | { | |
1157 | /* If this address is for nonexistent memory, read zeros | |
1158 | if reading, or do nothing if writing. Return | |
1159 | error. */ | |
1160 | if (!write) | |
1161 | memset (myaddr, 0, len); | |
1162 | if (errno == 0) | |
1163 | return EIO; | |
1164 | else | |
1165 | return errno; | |
1166 | } | |
1167 | ||
1168 | memaddr += res; | |
1169 | myaddr += res; | |
1170 | len -= res; | |
1171 | reg_len -= res; | |
1172 | } | |
c906108c | 1173 | } |
4930751a | 1174 | |
c906108c SS |
1175 | return 0; /* We managed to cover it all somehow. */ |
1176 | } | |
1177 | ||
1178 | ||
67e0617e C |
1179 | /* Perform a partial memory transfer. |
1180 | ||
1181 | Result is -1 on error, or the number of bytes transfered. */ | |
917317f4 JM |
1182 | |
1183 | static int | |
4930751a | 1184 | target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len, |
917317f4 JM |
1185 | int write_p, int *err) |
1186 | { | |
1187 | int res; | |
29e57380 C |
1188 | int reg_len; |
1189 | struct mem_region *region; | |
917317f4 JM |
1190 | |
1191 | /* Zero length requests are ok and require no work. */ | |
1192 | if (len == 0) | |
1193 | { | |
1194 | *err = 0; | |
1195 | return 0; | |
1196 | } | |
1197 | ||
29e57380 C |
1198 | region = lookup_mem_region(memaddr); |
1199 | if (memaddr + len < region->hi) | |
1200 | reg_len = len; | |
1201 | else | |
1202 | reg_len = region->hi - memaddr; | |
1203 | ||
1204 | switch (region->attrib.mode) | |
1205 | { | |
1206 | case MEM_RO: | |
1207 | if (write_p) | |
1208 | { | |
1209 | *err = EIO; | |
873406a6 | 1210 | return -1; |
29e57380 C |
1211 | } |
1212 | break; | |
1213 | ||
1214 | case MEM_WO: | |
1215 | if (write_p) | |
1216 | { | |
1217 | *err = EIO; | |
873406a6 | 1218 | return -1; |
29e57380 C |
1219 | } |
1220 | break; | |
1221 | } | |
1222 | ||
1223 | if (region->attrib.cache) | |
1224 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, | |
1225 | reg_len, write_p); | |
1226 | else | |
1227 | res = do_xfer_memory (memaddr, myaddr, reg_len, write_p, | |
1228 | ®ion->attrib); | |
1229 | ||
4930751a | 1230 | if (res <= 0) |
917317f4 | 1231 | { |
4930751a C |
1232 | if (errno != 0) |
1233 | *err = errno; | |
1234 | else | |
1235 | *err = EIO; | |
917317f4 | 1236 | |
4930751a | 1237 | return -1; |
917317f4 JM |
1238 | } |
1239 | ||
4930751a | 1240 | *err = 0; |
67e0617e | 1241 | return res; |
917317f4 JM |
1242 | } |
1243 | ||
1244 | int | |
1245 | target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1246 | { | |
0779438d | 1247 | if (target_xfer_partial_p ()) |
f90221d3 DJ |
1248 | { |
1249 | int retval; | |
1250 | ||
1251 | retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, | |
1252 | NULL, buf, NULL, memaddr, len); | |
1253 | ||
1254 | if (retval <= 0) | |
1255 | { | |
1256 | if (errno) | |
1257 | *err = errno; | |
1258 | else | |
1259 | *err = EIO; | |
1260 | return -1; | |
1261 | } | |
1262 | else | |
1263 | { | |
1264 | *err = 0; | |
1265 | return retval; | |
1266 | } | |
1267 | } | |
0779438d AC |
1268 | else |
1269 | return target_xfer_memory_partial (memaddr, buf, len, 0, err); | |
917317f4 JM |
1270 | } |
1271 | ||
1272 | int | |
1273 | target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1274 | { | |
0779438d | 1275 | if (target_xfer_partial_p ()) |
f90221d3 DJ |
1276 | { |
1277 | int retval; | |
1278 | ||
1279 | retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, | |
1280 | NULL, NULL, buf, memaddr, len); | |
1281 | ||
1282 | if (retval <= 0) | |
1283 | { | |
1284 | if (errno) | |
1285 | *err = errno; | |
1286 | else | |
1287 | *err = EIO; | |
1288 | return -1; | |
1289 | } | |
1290 | else | |
1291 | { | |
1292 | *err = 0; | |
1293 | return retval; | |
1294 | } | |
1295 | } | |
0779438d AC |
1296 | else |
1297 | return target_xfer_memory_partial (memaddr, buf, len, 1, err); | |
917317f4 JM |
1298 | } |
1299 | ||
1e3ff5ad AC |
1300 | /* More generic transfers. */ |
1301 | ||
0088c768 | 1302 | static LONGEST |
8aa91c1e | 1303 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
1b0ba102 AC |
1304 | const char *annex, gdb_byte *readbuf, |
1305 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
0088c768 AC |
1306 | { |
1307 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1308 | && ops->deprecated_xfer_memory != NULL) |
1309 | /* If available, fall back to the target's | |
1310 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1311 | { |
4b8a223f | 1312 | int xfered = -1; |
0088c768 | 1313 | errno = 0; |
4b8a223f AC |
1314 | if (writebuf != NULL) |
1315 | { | |
1316 | void *buffer = xmalloc (len); | |
1317 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1318 | memcpy (buffer, writebuf, len); | |
c8e73a31 AC |
1319 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1320 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1321 | do_cleanups (cleanup); |
1322 | } | |
1323 | if (readbuf != NULL) | |
c8e73a31 AC |
1324 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, 0/*read*/, |
1325 | NULL, ops); | |
0088c768 AC |
1326 | if (xfered > 0) |
1327 | return xfered; | |
1328 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1329 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1330 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1331 | return 0; |
1332 | else | |
1333 | return -1; | |
1334 | } | |
1335 | else if (ops->beneath != NULL) | |
27394598 AC |
1336 | return target_xfer_partial (ops->beneath, object, annex, |
1337 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1338 | else |
1339 | return -1; | |
1340 | } | |
1341 | ||
1342 | /* Target vector read/write partial wrapper functions. | |
1343 | ||
1344 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1345 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1346 | easier. */ | |
1347 | ||
1e3ff5ad AC |
1348 | LONGEST |
1349 | target_read_partial (struct target_ops *ops, | |
1350 | enum target_object object, | |
1b0ba102 | 1351 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1352 | ULONGEST offset, LONGEST len) |
1353 | { | |
27394598 | 1354 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1355 | } |
1356 | ||
1357 | LONGEST | |
1358 | target_write_partial (struct target_ops *ops, | |
1359 | enum target_object object, | |
1b0ba102 | 1360 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1361 | ULONGEST offset, LONGEST len) |
1362 | { | |
27394598 | 1363 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1364 | } |
1365 | ||
1366 | /* Wrappers to perform the full transfer. */ | |
1367 | LONGEST | |
1368 | target_read (struct target_ops *ops, | |
1369 | enum target_object object, | |
1b0ba102 | 1370 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1371 | ULONGEST offset, LONGEST len) |
1372 | { | |
1373 | LONGEST xfered = 0; | |
1374 | while (xfered < len) | |
1375 | { | |
0088c768 | 1376 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 1377 | (gdb_byte *) buf + xfered, |
0088c768 | 1378 | offset + xfered, len - xfered); |
1e3ff5ad | 1379 | /* Call an observer, notifying them of the xfer progress? */ |
0088c768 AC |
1380 | if (xfer <= 0) |
1381 | /* Call memory_error? */ | |
1382 | return -1; | |
1e3ff5ad AC |
1383 | xfered += xfer; |
1384 | QUIT; | |
1385 | } | |
1386 | return len; | |
1387 | } | |
1388 | ||
1389 | LONGEST | |
1390 | target_write (struct target_ops *ops, | |
1391 | enum target_object object, | |
1b0ba102 | 1392 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1393 | ULONGEST offset, LONGEST len) |
1394 | { | |
1395 | LONGEST xfered = 0; | |
1396 | while (xfered < len) | |
1397 | { | |
1398 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 1399 | (gdb_byte *) buf + xfered, |
1e3ff5ad AC |
1400 | offset + xfered, len - xfered); |
1401 | /* Call an observer, notifying them of the xfer progress? */ | |
0088c768 AC |
1402 | if (xfer <= 0) |
1403 | /* Call memory_error? */ | |
1404 | return -1; | |
1e3ff5ad AC |
1405 | xfered += xfer; |
1406 | QUIT; | |
1407 | } | |
1408 | return len; | |
1409 | } | |
1410 | ||
b6591e8b AC |
1411 | /* Memory transfer methods. */ |
1412 | ||
1413 | void | |
1b0ba102 | 1414 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1415 | LONGEST len) |
1416 | { | |
1417 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1418 | != len) | |
1419 | memory_error (EIO, addr); | |
1420 | } | |
1421 | ||
1422 | ULONGEST | |
1423 | get_target_memory_unsigned (struct target_ops *ops, | |
1424 | CORE_ADDR addr, int len) | |
1425 | { | |
1426 | char buf[sizeof (ULONGEST)]; | |
1427 | ||
1428 | gdb_assert (len <= sizeof (buf)); | |
1429 | get_target_memory (ops, addr, buf, len); | |
1430 | return extract_unsigned_integer (buf, len); | |
1431 | } | |
1432 | ||
c906108c | 1433 | static void |
fba45db2 | 1434 | target_info (char *args, int from_tty) |
c906108c SS |
1435 | { |
1436 | struct target_ops *t; | |
c906108c | 1437 | int has_all_mem = 0; |
c5aa993b | 1438 | |
c906108c | 1439 | if (symfile_objfile != NULL) |
a3f17187 | 1440 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 1441 | |
258b763a | 1442 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1443 | { |
c906108c SS |
1444 | if (!t->to_has_memory) |
1445 | continue; | |
1446 | ||
c5aa993b | 1447 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1448 | continue; |
1449 | if (has_all_mem) | |
a3f17187 | 1450 | printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n")); |
c5aa993b JM |
1451 | printf_unfiltered ("%s:\n", t->to_longname); |
1452 | (t->to_files_info) (t); | |
c906108c SS |
1453 | has_all_mem = t->to_has_all_memory; |
1454 | } | |
1455 | } | |
1456 | ||
1457 | /* This is to be called by the open routine before it does | |
1458 | anything. */ | |
1459 | ||
1460 | void | |
fba45db2 | 1461 | target_preopen (int from_tty) |
c906108c | 1462 | { |
c5aa993b | 1463 | dont_repeat (); |
c906108c SS |
1464 | |
1465 | if (target_has_execution) | |
c5aa993b | 1466 | { |
adf40b2e | 1467 | if (!from_tty |
e2e0b3e5 | 1468 | || query (_("A program is being debugged already. Kill it? "))) |
c5aa993b | 1469 | target_kill (); |
c906108c | 1470 | else |
8a3fe4f8 | 1471 | error (_("Program not killed.")); |
c906108c SS |
1472 | } |
1473 | ||
1474 | /* Calling target_kill may remove the target from the stack. But if | |
1475 | it doesn't (which seems like a win for UDI), remove it now. */ | |
1476 | ||
1477 | if (target_has_execution) | |
1478 | pop_target (); | |
1479 | } | |
1480 | ||
1481 | /* Detach a target after doing deferred register stores. */ | |
1482 | ||
1483 | void | |
fba45db2 | 1484 | target_detach (char *args, int from_tty) |
c906108c | 1485 | { |
c906108c SS |
1486 | (current_target.to_detach) (args, from_tty); |
1487 | } | |
1488 | ||
6ad8ae5c DJ |
1489 | void |
1490 | target_disconnect (char *args, int from_tty) | |
1491 | { | |
6ad8ae5c DJ |
1492 | (current_target.to_disconnect) (args, from_tty); |
1493 | } | |
1494 | ||
ed9a39eb JM |
1495 | int |
1496 | target_async_mask (int mask) | |
1497 | { | |
1498 | int saved_async_masked_status = target_async_mask_value; | |
1499 | target_async_mask_value = mask; | |
1500 | return saved_async_masked_status; | |
1501 | } | |
1502 | ||
c906108c SS |
1503 | /* Look through the list of possible targets for a target that can |
1504 | execute a run or attach command without any other data. This is | |
1505 | used to locate the default process stratum. | |
1506 | ||
1507 | Result is always valid (error() is called for errors). */ | |
1508 | ||
1509 | static struct target_ops * | |
fba45db2 | 1510 | find_default_run_target (char *do_mesg) |
c906108c SS |
1511 | { |
1512 | struct target_ops **t; | |
1513 | struct target_ops *runable = NULL; | |
1514 | int count; | |
1515 | ||
1516 | count = 0; | |
1517 | ||
1518 | for (t = target_structs; t < target_structs + target_struct_size; | |
1519 | ++t) | |
1520 | { | |
c5aa993b | 1521 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
1522 | { |
1523 | runable = *t; | |
1524 | ++count; | |
1525 | } | |
1526 | } | |
1527 | ||
1528 | if (count != 1) | |
8a3fe4f8 | 1529 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); |
c906108c SS |
1530 | |
1531 | return runable; | |
1532 | } | |
1533 | ||
1534 | void | |
fba45db2 | 1535 | find_default_attach (char *args, int from_tty) |
c906108c SS |
1536 | { |
1537 | struct target_ops *t; | |
1538 | ||
c5aa993b | 1539 | t = find_default_run_target ("attach"); |
c906108c SS |
1540 | (t->to_attach) (args, from_tty); |
1541 | return; | |
1542 | } | |
1543 | ||
c906108c | 1544 | void |
c27cda74 AC |
1545 | find_default_create_inferior (char *exec_file, char *allargs, char **env, |
1546 | int from_tty) | |
c906108c SS |
1547 | { |
1548 | struct target_ops *t; | |
1549 | ||
c5aa993b | 1550 | t = find_default_run_target ("run"); |
c27cda74 | 1551 | (t->to_create_inferior) (exec_file, allargs, env, from_tty); |
c906108c SS |
1552 | return; |
1553 | } | |
1554 | ||
ccaa32c7 GS |
1555 | static int |
1556 | default_region_size_ok_for_hw_watchpoint (int byte_count) | |
1557 | { | |
437b434f | 1558 | return (byte_count <= TYPE_LENGTH (builtin_type_void_data_ptr)); |
ccaa32c7 GS |
1559 | } |
1560 | ||
c906108c | 1561 | static int |
fba45db2 | 1562 | return_zero (void) |
c906108c SS |
1563 | { |
1564 | return 0; | |
1565 | } | |
1566 | ||
1567 | static int | |
fba45db2 | 1568 | return_one (void) |
c906108c SS |
1569 | { |
1570 | return 1; | |
1571 | } | |
1572 | ||
ccaa32c7 GS |
1573 | static int |
1574 | return_minus_one (void) | |
1575 | { | |
1576 | return -1; | |
1577 | } | |
1578 | ||
6426a772 JM |
1579 | /* |
1580 | * Resize the to_sections pointer. Also make sure that anyone that | |
1581 | * was holding on to an old value of it gets updated. | |
1582 | * Returns the old size. | |
1583 | */ | |
1584 | ||
1585 | int | |
1586 | target_resize_to_sections (struct target_ops *target, int num_added) | |
1587 | { | |
1588 | struct target_ops **t; | |
1589 | struct section_table *old_value; | |
1590 | int old_count; | |
1591 | ||
1592 | old_value = target->to_sections; | |
1593 | ||
1594 | if (target->to_sections) | |
1595 | { | |
1596 | old_count = target->to_sections_end - target->to_sections; | |
1597 | target->to_sections = (struct section_table *) | |
1598 | xrealloc ((char *) target->to_sections, | |
1599 | (sizeof (struct section_table)) * (num_added + old_count)); | |
1600 | } | |
1601 | else | |
1602 | { | |
1603 | old_count = 0; | |
1604 | target->to_sections = (struct section_table *) | |
1605 | xmalloc ((sizeof (struct section_table)) * num_added); | |
1606 | } | |
1607 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
1608 | ||
1609 | /* Check to see if anyone else was pointing to this structure. | |
1610 | If old_value was null, then no one was. */ | |
1611 | ||
1612 | if (old_value) | |
1613 | { | |
1614 | for (t = target_structs; t < target_structs + target_struct_size; | |
1615 | ++t) | |
1616 | { | |
1617 | if ((*t)->to_sections == old_value) | |
1618 | { | |
1619 | (*t)->to_sections = target->to_sections; | |
1620 | (*t)->to_sections_end = target->to_sections_end; | |
1621 | } | |
1622 | } | |
e354df01 NW |
1623 | /* There is a flattened view of the target stack in current_target, |
1624 | so its to_sections pointer might also need updating. */ | |
1625 | if (current_target.to_sections == old_value) | |
1626 | { | |
1627 | current_target.to_sections = target->to_sections; | |
1628 | current_target.to_sections_end = target->to_sections_end; | |
1629 | } | |
6426a772 JM |
1630 | } |
1631 | ||
1632 | return old_count; | |
1633 | ||
1634 | } | |
1635 | ||
07cd4b97 JB |
1636 | /* Remove all target sections taken from ABFD. |
1637 | ||
1638 | Scan the current target stack for targets whose section tables | |
1639 | refer to sections from BFD, and remove those sections. We use this | |
1640 | when we notice that the inferior has unloaded a shared object, for | |
1641 | example. */ | |
1642 | void | |
1643 | remove_target_sections (bfd *abfd) | |
1644 | { | |
1645 | struct target_ops **t; | |
1646 | ||
1647 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
1648 | { | |
1649 | struct section_table *src, *dest; | |
1650 | ||
1651 | dest = (*t)->to_sections; | |
1652 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
1653 | if (src->bfd != abfd) | |
1654 | { | |
1655 | /* Keep this section. */ | |
1656 | if (dest < src) *dest = *src; | |
1657 | dest++; | |
1658 | } | |
1659 | ||
1660 | /* If we've dropped any sections, resize the section table. */ | |
1661 | if (dest < src) | |
1662 | target_resize_to_sections (*t, dest - src); | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | ||
1667 | ||
1668 | ||
7a292a7a SS |
1669 | /* Find a single runnable target in the stack and return it. If for |
1670 | some reason there is more than one, return NULL. */ | |
1671 | ||
1672 | struct target_ops * | |
fba45db2 | 1673 | find_run_target (void) |
7a292a7a SS |
1674 | { |
1675 | struct target_ops **t; | |
1676 | struct target_ops *runable = NULL; | |
1677 | int count; | |
c5aa993b | 1678 | |
7a292a7a | 1679 | count = 0; |
c5aa993b | 1680 | |
7a292a7a SS |
1681 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
1682 | { | |
c5aa993b | 1683 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
1684 | { |
1685 | runable = *t; | |
1686 | ++count; | |
1687 | } | |
1688 | } | |
c5aa993b | 1689 | |
7a292a7a SS |
1690 | return (count == 1 ? runable : NULL); |
1691 | } | |
1692 | ||
ed9a39eb JM |
1693 | /* Find a single core_stratum target in the list of targets and return it. |
1694 | If for some reason there is more than one, return NULL. */ | |
1695 | ||
c906108c | 1696 | struct target_ops * |
fba45db2 | 1697 | find_core_target (void) |
c906108c SS |
1698 | { |
1699 | struct target_ops **t; | |
1700 | struct target_ops *runable = NULL; | |
1701 | int count; | |
c5aa993b | 1702 | |
c906108c | 1703 | count = 0; |
c5aa993b | 1704 | |
c906108c SS |
1705 | for (t = target_structs; t < target_structs + target_struct_size; |
1706 | ++t) | |
1707 | { | |
1708 | if ((*t)->to_stratum == core_stratum) | |
1709 | { | |
1710 | runable = *t; | |
1711 | ++count; | |
1712 | } | |
1713 | } | |
c5aa993b JM |
1714 | |
1715 | return (count == 1 ? runable : NULL); | |
c906108c | 1716 | } |
ed9a39eb JM |
1717 | |
1718 | /* | |
1719 | * Find the next target down the stack from the specified target. | |
1720 | */ | |
1721 | ||
1722 | struct target_ops * | |
fba45db2 | 1723 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 1724 | { |
258b763a | 1725 | return t->beneath; |
ed9a39eb JM |
1726 | } |
1727 | ||
c906108c SS |
1728 | \f |
1729 | /* The inferior process has died. Long live the inferior! */ | |
1730 | ||
1731 | void | |
fba45db2 | 1732 | generic_mourn_inferior (void) |
c906108c SS |
1733 | { |
1734 | extern int show_breakpoint_hit_counts; | |
1735 | ||
39f77062 | 1736 | inferior_ptid = null_ptid; |
c906108c SS |
1737 | attach_flag = 0; |
1738 | breakpoint_init_inferior (inf_exited); | |
1739 | registers_changed (); | |
1740 | ||
c906108c SS |
1741 | reopen_exec_file (); |
1742 | reinit_frame_cache (); | |
1743 | ||
1744 | /* It is confusing to the user for ignore counts to stick around | |
1745 | from previous runs of the inferior. So clear them. */ | |
1746 | /* However, it is more confusing for the ignore counts to disappear when | |
1747 | using hit counts. So don't clear them if we're counting hits. */ | |
1748 | if (!show_breakpoint_hit_counts) | |
1749 | breakpoint_clear_ignore_counts (); | |
c5b739b5 | 1750 | |
9a4105ab AC |
1751 | if (deprecated_detach_hook) |
1752 | deprecated_detach_hook (); | |
c906108c SS |
1753 | } |
1754 | \f | |
c906108c SS |
1755 | /* Helper function for child_wait and the Lynx derivatives of child_wait. |
1756 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our | |
1757 | translation of that in OURSTATUS. */ | |
1758 | void | |
fba45db2 | 1759 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c SS |
1760 | { |
1761 | #ifdef CHILD_SPECIAL_WAITSTATUS | |
1762 | /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS | |
1763 | if it wants to deal with hoststatus. */ | |
1764 | if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) | |
1765 | return; | |
1766 | #endif | |
1767 | ||
1768 | if (WIFEXITED (hoststatus)) | |
1769 | { | |
1770 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1771 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
1772 | } | |
1773 | else if (!WIFSTOPPED (hoststatus)) | |
1774 | { | |
1775 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1776 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
1777 | } | |
1778 | else | |
1779 | { | |
1780 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1781 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
1782 | } | |
1783 | } | |
1784 | \f | |
c906108c | 1785 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 1786 | int (*target_activity_function) (void); |
c906108c SS |
1787 | int target_activity_fd; |
1788 | \f | |
fd0a2a6f MK |
1789 | /* Convert a normal process ID to a string. Returns the string in a |
1790 | static buffer. */ | |
c906108c SS |
1791 | |
1792 | char * | |
39f77062 | 1793 | normal_pid_to_str (ptid_t ptid) |
c906108c | 1794 | { |
fd0a2a6f | 1795 | static char buf[32]; |
c906108c | 1796 | |
5fff8fc0 | 1797 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
1798 | return buf; |
1799 | } | |
1800 | ||
be4d1333 | 1801 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
1802 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
1803 | { | |
8a3fe4f8 | 1804 | error (_("No target.")); |
be4d1333 MS |
1805 | return 0; |
1806 | } | |
1807 | ||
1808 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
1809 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
1810 | { | |
8a3fe4f8 | 1811 | error (_("No target.")); |
be4d1333 MS |
1812 | return NULL; |
1813 | } | |
1814 | ||
c906108c SS |
1815 | /* Set up the handful of non-empty slots needed by the dummy target |
1816 | vector. */ | |
1817 | ||
1818 | static void | |
fba45db2 | 1819 | init_dummy_target (void) |
c906108c SS |
1820 | { |
1821 | dummy_target.to_shortname = "None"; | |
1822 | dummy_target.to_longname = "None"; | |
1823 | dummy_target.to_doc = ""; | |
1824 | dummy_target.to_attach = find_default_attach; | |
c906108c | 1825 | dummy_target.to_create_inferior = find_default_create_inferior; |
ed9a39eb | 1826 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 1827 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
1828 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
1829 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 1830 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
1831 | dummy_target.to_magic = OPS_MAGIC; |
1832 | } | |
c906108c | 1833 | \f |
c906108c | 1834 | static void |
fba45db2 | 1835 | debug_to_open (char *args, int from_tty) |
c906108c SS |
1836 | { |
1837 | debug_target.to_open (args, from_tty); | |
1838 | ||
96baa820 | 1839 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
1840 | } |
1841 | ||
1842 | static void | |
fba45db2 | 1843 | debug_to_close (int quitting) |
c906108c | 1844 | { |
f1c07ab0 | 1845 | target_close (&debug_target, quitting); |
96baa820 | 1846 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
1847 | } |
1848 | ||
f1c07ab0 AC |
1849 | void |
1850 | target_close (struct target_ops *targ, int quitting) | |
1851 | { | |
1852 | if (targ->to_xclose != NULL) | |
1853 | targ->to_xclose (targ, quitting); | |
1854 | else if (targ->to_close != NULL) | |
1855 | targ->to_close (quitting); | |
1856 | } | |
1857 | ||
c906108c | 1858 | static void |
fba45db2 | 1859 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
1860 | { |
1861 | debug_target.to_attach (args, from_tty); | |
1862 | ||
96baa820 | 1863 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
1864 | } |
1865 | ||
1866 | ||
1867 | static void | |
fba45db2 | 1868 | debug_to_post_attach (int pid) |
c906108c SS |
1869 | { |
1870 | debug_target.to_post_attach (pid); | |
1871 | ||
96baa820 | 1872 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
1873 | } |
1874 | ||
c906108c | 1875 | static void |
fba45db2 | 1876 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
1877 | { |
1878 | debug_target.to_detach (args, from_tty); | |
1879 | ||
96baa820 | 1880 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
1881 | } |
1882 | ||
6ad8ae5c DJ |
1883 | static void |
1884 | debug_to_disconnect (char *args, int from_tty) | |
1885 | { | |
1886 | debug_target.to_disconnect (args, from_tty); | |
1887 | ||
1888 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1889 | args, from_tty); | |
1890 | } | |
1891 | ||
c906108c | 1892 | static void |
39f77062 | 1893 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 1894 | { |
39f77062 | 1895 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 1896 | |
39f77062 | 1897 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
1898 | step ? "step" : "continue", |
1899 | target_signal_to_name (siggnal)); | |
1900 | } | |
1901 | ||
39f77062 KB |
1902 | static ptid_t |
1903 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 1904 | { |
39f77062 | 1905 | ptid_t retval; |
c906108c | 1906 | |
39f77062 | 1907 | retval = debug_target.to_wait (ptid, status); |
c906108c | 1908 | |
96baa820 | 1909 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
1910 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
1911 | PIDGET (retval)); | |
96baa820 | 1912 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
1913 | switch (status->kind) |
1914 | { | |
1915 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 1916 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
1917 | status->value.integer); |
1918 | break; | |
1919 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 1920 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
1921 | target_signal_to_name (status->value.sig)); |
1922 | break; | |
1923 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 1924 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
1925 | target_signal_to_name (status->value.sig)); |
1926 | break; | |
1927 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 1928 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
1929 | break; |
1930 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 1931 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
1932 | break; |
1933 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 1934 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
1935 | break; |
1936 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 1937 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
1938 | break; |
1939 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 1940 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
1941 | break; |
1942 | default: | |
96baa820 | 1943 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
1944 | break; |
1945 | } | |
1946 | ||
1947 | return retval; | |
1948 | } | |
1949 | ||
bf0c5130 AC |
1950 | static void |
1951 | debug_print_register (const char * func, int regno) | |
1952 | { | |
1953 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1954 | if (regno >= 0 && regno < NUM_REGS + NUM_PSEUDO_REGS | |
1955 | && REGISTER_NAME (regno) != NULL && REGISTER_NAME (regno)[0] != '\0') | |
1956 | fprintf_unfiltered (gdb_stdlog, "(%s)", REGISTER_NAME (regno)); | |
1957 | else | |
1958 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1959 | if (regno >= 0) | |
1960 | { | |
1961 | int i; | |
d9d9c31f | 1962 | unsigned char buf[MAX_REGISTER_SIZE]; |
4caf0990 | 1963 | deprecated_read_register_gen (regno, buf); |
bf0c5130 | 1964 | fprintf_unfiltered (gdb_stdlog, " = "); |
3acba339 | 1965 | for (i = 0; i < register_size (current_gdbarch, regno); i++) |
bf0c5130 AC |
1966 | { |
1967 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1968 | } | |
3acba339 | 1969 | if (register_size (current_gdbarch, regno) <= sizeof (LONGEST)) |
bf0c5130 AC |
1970 | { |
1971 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", | |
1972 | paddr_nz (read_register (regno)), | |
1973 | paddr_d (read_register (regno))); | |
1974 | } | |
1975 | } | |
1976 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1977 | } | |
1978 | ||
c906108c | 1979 | static void |
fba45db2 | 1980 | debug_to_fetch_registers (int regno) |
c906108c SS |
1981 | { |
1982 | debug_target.to_fetch_registers (regno); | |
bf0c5130 | 1983 | debug_print_register ("target_fetch_registers", regno); |
c906108c SS |
1984 | } |
1985 | ||
1986 | static void | |
fba45db2 | 1987 | debug_to_store_registers (int regno) |
c906108c SS |
1988 | { |
1989 | debug_target.to_store_registers (regno); | |
bf0c5130 AC |
1990 | debug_print_register ("target_store_registers", regno); |
1991 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c906108c SS |
1992 | } |
1993 | ||
1994 | static void | |
fba45db2 | 1995 | debug_to_prepare_to_store (void) |
c906108c SS |
1996 | { |
1997 | debug_target.to_prepare_to_store (); | |
1998 | ||
96baa820 | 1999 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
2000 | } |
2001 | ||
2002 | static int | |
961cb7b5 | 2003 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
2004 | int write, struct mem_attrib *attrib, |
2005 | struct target_ops *target) | |
c906108c SS |
2006 | { |
2007 | int retval; | |
2008 | ||
c8e73a31 AC |
2009 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
2010 | attrib, target); | |
c906108c | 2011 | |
96baa820 | 2012 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2013 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 2014 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
2015 | len, write ? "write" : "read", retval); |
2016 | ||
c906108c SS |
2017 | if (retval > 0) |
2018 | { | |
2019 | int i; | |
2020 | ||
96baa820 | 2021 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
2022 | for (i = 0; i < retval; i++) |
2023 | { | |
2024 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
333dabeb DJ |
2025 | { |
2026 | if (targetdebug < 2 && i > 0) | |
2027 | { | |
2028 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
2029 | break; | |
2030 | } | |
2031 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2032 | } | |
2033 | ||
96baa820 | 2034 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
2035 | } |
2036 | } | |
2037 | ||
96baa820 | 2038 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
2039 | |
2040 | return retval; | |
2041 | } | |
2042 | ||
2043 | static void | |
fba45db2 | 2044 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
2045 | { |
2046 | debug_target.to_files_info (target); | |
2047 | ||
96baa820 | 2048 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
2049 | } |
2050 | ||
2051 | static int | |
fc1a4b47 | 2052 | debug_to_insert_breakpoint (CORE_ADDR addr, gdb_byte *save) |
c906108c SS |
2053 | { |
2054 | int retval; | |
2055 | ||
2056 | retval = debug_target.to_insert_breakpoint (addr, save); | |
2057 | ||
96baa820 | 2058 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
2059 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
2060 | (unsigned long) addr, | |
2061 | (unsigned long) retval); | |
c906108c SS |
2062 | return retval; |
2063 | } | |
2064 | ||
2065 | static int | |
fc1a4b47 | 2066 | debug_to_remove_breakpoint (CORE_ADDR addr, gdb_byte *save) |
c906108c SS |
2067 | { |
2068 | int retval; | |
2069 | ||
2070 | retval = debug_target.to_remove_breakpoint (addr, save); | |
2071 | ||
96baa820 | 2072 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
2073 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
2074 | (unsigned long) addr, | |
2075 | (unsigned long) retval); | |
c906108c SS |
2076 | return retval; |
2077 | } | |
2078 | ||
ccaa32c7 GS |
2079 | static int |
2080 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2081 | { | |
2082 | int retval; | |
2083 | ||
2084 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2085 | ||
2086 | fprintf_unfiltered (gdb_stdlog, | |
2087 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2088 | (unsigned long) type, | |
2089 | (unsigned long) cnt, | |
2090 | (unsigned long) from_tty, | |
2091 | (unsigned long) retval); | |
2092 | return retval; | |
2093 | } | |
2094 | ||
2095 | static int | |
2096 | debug_to_region_size_ok_for_hw_watchpoint (int byte_count) | |
2097 | { | |
2098 | CORE_ADDR retval; | |
2099 | ||
2100 | retval = debug_target.to_region_size_ok_for_hw_watchpoint (byte_count); | |
2101 | ||
2102 | fprintf_unfiltered (gdb_stdlog, | |
2103 | "TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT (%ld) = 0x%lx\n", | |
2104 | (unsigned long) byte_count, | |
2105 | (unsigned long) retval); | |
2106 | return retval; | |
2107 | } | |
2108 | ||
2109 | static int | |
2110 | debug_to_stopped_by_watchpoint (void) | |
2111 | { | |
2112 | int retval; | |
2113 | ||
2114 | retval = debug_target.to_stopped_by_watchpoint (); | |
2115 | ||
2116 | fprintf_unfiltered (gdb_stdlog, | |
2117 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
2118 | (unsigned long) retval); | |
2119 | return retval; | |
2120 | } | |
2121 | ||
4aa7a7f5 JJ |
2122 | static int |
2123 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 2124 | { |
4aa7a7f5 | 2125 | int retval; |
ccaa32c7 | 2126 | |
4aa7a7f5 | 2127 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
2128 | |
2129 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
2130 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
2131 | (unsigned long)*addr, | |
2132 | (unsigned long)retval); | |
ccaa32c7 GS |
2133 | return retval; |
2134 | } | |
2135 | ||
2136 | static int | |
c6826062 | 2137 | debug_to_insert_hw_breakpoint (CORE_ADDR addr, gdb_byte *save) |
ccaa32c7 GS |
2138 | { |
2139 | int retval; | |
2140 | ||
2141 | retval = debug_target.to_insert_hw_breakpoint (addr, save); | |
2142 | ||
2143 | fprintf_unfiltered (gdb_stdlog, | |
2144 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
2145 | (unsigned long) addr, | |
2146 | (unsigned long) retval); | |
2147 | return retval; | |
2148 | } | |
2149 | ||
2150 | static int | |
c6826062 | 2151 | debug_to_remove_hw_breakpoint (CORE_ADDR addr, gdb_byte *save) |
ccaa32c7 GS |
2152 | { |
2153 | int retval; | |
2154 | ||
2155 | retval = debug_target.to_remove_hw_breakpoint (addr, save); | |
2156 | ||
2157 | fprintf_unfiltered (gdb_stdlog, | |
2158 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
2159 | (unsigned long) addr, | |
2160 | (unsigned long) retval); | |
2161 | return retval; | |
2162 | } | |
2163 | ||
2164 | static int | |
2165 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2166 | { | |
2167 | int retval; | |
2168 | ||
2169 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2170 | ||
2171 | fprintf_unfiltered (gdb_stdlog, | |
2172 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2173 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2174 | return retval; | |
2175 | } | |
2176 | ||
2177 | static int | |
2178 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2179 | { | |
2180 | int retval; | |
2181 | ||
2182 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2183 | ||
2184 | fprintf_unfiltered (gdb_stdlog, | |
2185 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2186 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2187 | return retval; | |
2188 | } | |
2189 | ||
c906108c | 2190 | static void |
fba45db2 | 2191 | debug_to_terminal_init (void) |
c906108c SS |
2192 | { |
2193 | debug_target.to_terminal_init (); | |
2194 | ||
96baa820 | 2195 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2196 | } |
2197 | ||
2198 | static void | |
fba45db2 | 2199 | debug_to_terminal_inferior (void) |
c906108c SS |
2200 | { |
2201 | debug_target.to_terminal_inferior (); | |
2202 | ||
96baa820 | 2203 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2204 | } |
2205 | ||
2206 | static void | |
fba45db2 | 2207 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2208 | { |
2209 | debug_target.to_terminal_ours_for_output (); | |
2210 | ||
96baa820 | 2211 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2212 | } |
2213 | ||
2214 | static void | |
fba45db2 | 2215 | debug_to_terminal_ours (void) |
c906108c SS |
2216 | { |
2217 | debug_target.to_terminal_ours (); | |
2218 | ||
96baa820 | 2219 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2220 | } |
2221 | ||
a790ad35 SC |
2222 | static void |
2223 | debug_to_terminal_save_ours (void) | |
2224 | { | |
2225 | debug_target.to_terminal_save_ours (); | |
2226 | ||
2227 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2228 | } | |
2229 | ||
c906108c | 2230 | static void |
fba45db2 | 2231 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2232 | { |
2233 | debug_target.to_terminal_info (arg, from_tty); | |
2234 | ||
96baa820 | 2235 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2236 | from_tty); |
2237 | } | |
2238 | ||
2239 | static void | |
fba45db2 | 2240 | debug_to_kill (void) |
c906108c SS |
2241 | { |
2242 | debug_target.to_kill (); | |
2243 | ||
96baa820 | 2244 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2245 | } |
2246 | ||
2247 | static void | |
fba45db2 | 2248 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2249 | { |
2250 | debug_target.to_load (args, from_tty); | |
2251 | ||
96baa820 | 2252 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2253 | } |
2254 | ||
2255 | static int | |
fba45db2 | 2256 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2257 | { |
2258 | int retval; | |
2259 | ||
2260 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2261 | ||
96baa820 | 2262 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2263 | |
2264 | return retval; | |
2265 | } | |
2266 | ||
2267 | static void | |
c27cda74 AC |
2268 | debug_to_create_inferior (char *exec_file, char *args, char **env, |
2269 | int from_tty) | |
c906108c | 2270 | { |
c27cda74 | 2271 | debug_target.to_create_inferior (exec_file, args, env, from_tty); |
c906108c | 2272 | |
c27cda74 AC |
2273 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx, %d)\n", |
2274 | exec_file, args, from_tty); | |
c906108c SS |
2275 | } |
2276 | ||
2277 | static void | |
39f77062 | 2278 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2279 | { |
39f77062 | 2280 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2281 | |
96baa820 | 2282 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2283 | PIDGET (ptid)); |
c906108c SS |
2284 | } |
2285 | ||
2286 | static void | |
fba45db2 | 2287 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2288 | { |
2289 | debug_target.to_acknowledge_created_inferior (pid); | |
2290 | ||
96baa820 | 2291 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2292 | pid); |
2293 | } | |
2294 | ||
fa113d1a | 2295 | static void |
fba45db2 | 2296 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2297 | { |
fa113d1a | 2298 | debug_target.to_insert_fork_catchpoint (pid); |
c906108c | 2299 | |
fa113d1a AC |
2300 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n", |
2301 | pid); | |
c906108c SS |
2302 | } |
2303 | ||
2304 | static int | |
fba45db2 | 2305 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2306 | { |
c5aa993b | 2307 | int retval; |
c906108c SS |
2308 | |
2309 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2310 | ||
96baa820 | 2311 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2312 | pid, retval); |
c906108c SS |
2313 | |
2314 | return retval; | |
2315 | } | |
2316 | ||
fa113d1a | 2317 | static void |
fba45db2 | 2318 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2319 | { |
fa113d1a | 2320 | debug_target.to_insert_vfork_catchpoint (pid); |
c906108c | 2321 | |
fa113d1a AC |
2322 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n", |
2323 | pid); | |
c906108c SS |
2324 | } |
2325 | ||
2326 | static int | |
fba45db2 | 2327 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2328 | { |
c5aa993b | 2329 | int retval; |
c906108c SS |
2330 | |
2331 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2332 | ||
96baa820 | 2333 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2334 | pid, retval); |
c906108c SS |
2335 | |
2336 | return retval; | |
2337 | } | |
2338 | ||
6604731b DJ |
2339 | static int |
2340 | debug_to_follow_fork (int follow_child) | |
c906108c | 2341 | { |
6604731b | 2342 | int retval = debug_target.to_follow_fork (follow_child); |
c906108c | 2343 | |
6604731b DJ |
2344 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", |
2345 | follow_child, retval); | |
2346 | ||
2347 | return retval; | |
c906108c SS |
2348 | } |
2349 | ||
fa113d1a | 2350 | static void |
fba45db2 | 2351 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2352 | { |
fa113d1a | 2353 | debug_target.to_insert_exec_catchpoint (pid); |
c906108c | 2354 | |
fa113d1a AC |
2355 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n", |
2356 | pid); | |
c906108c SS |
2357 | } |
2358 | ||
2359 | static int | |
fba45db2 | 2360 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2361 | { |
c5aa993b | 2362 | int retval; |
c906108c SS |
2363 | |
2364 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2365 | ||
96baa820 | 2366 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2367 | pid, retval); |
c906108c SS |
2368 | |
2369 | return retval; | |
2370 | } | |
2371 | ||
c906108c | 2372 | static int |
fba45db2 | 2373 | debug_to_reported_exec_events_per_exec_call (void) |
c906108c | 2374 | { |
c5aa993b | 2375 | int reported_exec_events; |
c906108c SS |
2376 | |
2377 | reported_exec_events = debug_target.to_reported_exec_events_per_exec_call (); | |
2378 | ||
96baa820 | 2379 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2380 | "target_reported_exec_events_per_exec_call () = %d\n", |
c5aa993b | 2381 | reported_exec_events); |
c906108c SS |
2382 | |
2383 | return reported_exec_events; | |
2384 | } | |
2385 | ||
c906108c | 2386 | static int |
fba45db2 | 2387 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2388 | { |
c5aa993b | 2389 | int has_exited; |
c906108c SS |
2390 | |
2391 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2392 | ||
96baa820 | 2393 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2394 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2395 | |
2396 | return has_exited; | |
2397 | } | |
2398 | ||
2399 | static void | |
fba45db2 | 2400 | debug_to_mourn_inferior (void) |
c906108c SS |
2401 | { |
2402 | debug_target.to_mourn_inferior (); | |
2403 | ||
96baa820 | 2404 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2405 | } |
2406 | ||
2407 | static int | |
fba45db2 | 2408 | debug_to_can_run (void) |
c906108c SS |
2409 | { |
2410 | int retval; | |
2411 | ||
2412 | retval = debug_target.to_can_run (); | |
2413 | ||
96baa820 | 2414 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
2415 | |
2416 | return retval; | |
2417 | } | |
2418 | ||
2419 | static void | |
39f77062 | 2420 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 2421 | { |
39f77062 | 2422 | debug_target.to_notice_signals (ptid); |
c906108c | 2423 | |
39f77062 KB |
2424 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
2425 | PIDGET (ptid)); | |
c906108c SS |
2426 | } |
2427 | ||
2428 | static int | |
39f77062 | 2429 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
2430 | { |
2431 | int retval; | |
2432 | ||
39f77062 | 2433 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 2434 | |
96baa820 | 2435 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 2436 | PIDGET (ptid), retval); |
c906108c SS |
2437 | |
2438 | return retval; | |
2439 | } | |
2440 | ||
0d06e24b | 2441 | static void |
fba45db2 | 2442 | debug_to_find_new_threads (void) |
0d06e24b JM |
2443 | { |
2444 | debug_target.to_find_new_threads (); | |
2445 | ||
2446 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
2447 | } | |
2448 | ||
c906108c | 2449 | static void |
fba45db2 | 2450 | debug_to_stop (void) |
c906108c SS |
2451 | { |
2452 | debug_target.to_stop (); | |
2453 | ||
96baa820 | 2454 | fprintf_unfiltered (gdb_stdlog, "target_stop ()\n"); |
c906108c SS |
2455 | } |
2456 | ||
96baa820 JM |
2457 | static void |
2458 | debug_to_rcmd (char *command, | |
d9fcf2fb | 2459 | struct ui_file *outbuf) |
96baa820 JM |
2460 | { |
2461 | debug_target.to_rcmd (command, outbuf); | |
2462 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
2463 | } | |
2464 | ||
c906108c | 2465 | static struct symtab_and_line * |
fba45db2 | 2466 | debug_to_enable_exception_callback (enum exception_event_kind kind, int enable) |
c906108c | 2467 | { |
7a292a7a SS |
2468 | struct symtab_and_line *result; |
2469 | result = debug_target.to_enable_exception_callback (kind, enable); | |
96baa820 | 2470 | fprintf_unfiltered (gdb_stdlog, |
c906108c SS |
2471 | "target get_exception_callback_sal (%d, %d)\n", |
2472 | kind, enable); | |
7a292a7a | 2473 | return result; |
c906108c SS |
2474 | } |
2475 | ||
2476 | static struct exception_event_record * | |
fba45db2 | 2477 | debug_to_get_current_exception_event (void) |
c906108c | 2478 | { |
7a292a7a | 2479 | struct exception_event_record *result; |
c5aa993b | 2480 | result = debug_target.to_get_current_exception_event (); |
96baa820 | 2481 | fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n"); |
7a292a7a | 2482 | return result; |
c906108c SS |
2483 | } |
2484 | ||
2485 | static char * | |
fba45db2 | 2486 | debug_to_pid_to_exec_file (int pid) |
c906108c | 2487 | { |
c5aa993b | 2488 | char *exec_file; |
c906108c SS |
2489 | |
2490 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
2491 | ||
96baa820 | 2492 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 2493 | pid, exec_file); |
c906108c SS |
2494 | |
2495 | return exec_file; | |
2496 | } | |
2497 | ||
c906108c | 2498 | static void |
fba45db2 | 2499 | setup_target_debug (void) |
c906108c SS |
2500 | { |
2501 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
2502 | ||
2503 | current_target.to_open = debug_to_open; | |
2504 | current_target.to_close = debug_to_close; | |
2505 | current_target.to_attach = debug_to_attach; | |
2506 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 2507 | current_target.to_detach = debug_to_detach; |
6ad8ae5c | 2508 | current_target.to_disconnect = debug_to_disconnect; |
c906108c SS |
2509 | current_target.to_resume = debug_to_resume; |
2510 | current_target.to_wait = debug_to_wait; | |
c906108c SS |
2511 | current_target.to_fetch_registers = debug_to_fetch_registers; |
2512 | current_target.to_store_registers = debug_to_store_registers; | |
2513 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
c8e73a31 | 2514 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
2515 | current_target.to_files_info = debug_to_files_info; |
2516 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
2517 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
2518 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
2519 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
2520 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
2521 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
2522 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
2523 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
2524 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
2525 | current_target.to_region_size_ok_for_hw_watchpoint = debug_to_region_size_ok_for_hw_watchpoint; | |
c906108c SS |
2526 | current_target.to_terminal_init = debug_to_terminal_init; |
2527 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
2528 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
2529 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 2530 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
2531 | current_target.to_terminal_info = debug_to_terminal_info; |
2532 | current_target.to_kill = debug_to_kill; | |
2533 | current_target.to_load = debug_to_load; | |
2534 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
2535 | current_target.to_create_inferior = debug_to_create_inferior; | |
2536 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
2537 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
2538 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
2539 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
2540 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
2541 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
6604731b | 2542 | current_target.to_follow_fork = debug_to_follow_fork; |
c906108c SS |
2543 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
2544 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 2545 | current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call; |
c906108c SS |
2546 | current_target.to_has_exited = debug_to_has_exited; |
2547 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
2548 | current_target.to_can_run = debug_to_can_run; | |
2549 | current_target.to_notice_signals = debug_to_notice_signals; | |
2550 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 2551 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 2552 | current_target.to_stop = debug_to_stop; |
96baa820 | 2553 | current_target.to_rcmd = debug_to_rcmd; |
c906108c SS |
2554 | current_target.to_enable_exception_callback = debug_to_enable_exception_callback; |
2555 | current_target.to_get_current_exception_event = debug_to_get_current_exception_event; | |
2556 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; | |
c906108c SS |
2557 | |
2558 | } | |
c906108c | 2559 | \f |
c5aa993b JM |
2560 | |
2561 | static char targ_desc[] = | |
2562 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
2563 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
2564 | core-file, and process, if any), as well as the symbol file name."; | |
2565 | ||
96baa820 JM |
2566 | static void |
2567 | do_monitor_command (char *cmd, | |
2568 | int from_tty) | |
2569 | { | |
2b5fe715 AC |
2570 | if ((current_target.to_rcmd |
2571 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 2572 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
2573 | && (debug_target.to_rcmd |
2574 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 2575 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
2576 | target_rcmd (cmd, gdb_stdtarg); |
2577 | } | |
2578 | ||
c906108c | 2579 | void |
fba45db2 | 2580 | initialize_targets (void) |
c906108c SS |
2581 | { |
2582 | init_dummy_target (); | |
2583 | push_target (&dummy_target); | |
2584 | ||
2585 | add_info ("target", target_info, targ_desc); | |
2586 | add_info ("files", target_info, targ_desc); | |
2587 | ||
85c07804 AC |
2588 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
2589 | Set target debugging."), _("\ | |
2590 | Show target debugging."), _("\ | |
333dabeb DJ |
2591 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
2592 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
2593 | command."), |
2594 | NULL, | |
920d2a44 | 2595 | show_targetdebug, |
85c07804 | 2596 | &setdebuglist, &showdebuglist); |
3a11626d | 2597 | |
e707bbc2 | 2598 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
2599 | &trust_readonly, _("\ |
2600 | Set mode for reading from readonly sections."), _("\ | |
2601 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
2602 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
2603 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 2604 | result in significant performance improvement for remote targets."), |
2c5b56ce | 2605 | NULL, |
920d2a44 | 2606 | show_trust_readonly, |
e707bbc2 | 2607 | &setlist, &showlist); |
96baa820 JM |
2608 | |
2609 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 2610 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 2611 | |
8add0441 | 2612 | target_dcache = dcache_init (); |
c906108c | 2613 | } |