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, |
8aa91c1e AC |
74 | const char *annex, void *readbuf, |
75 | const void *writebuf, | |
76 | ULONGEST offset, LONGEST len); | |
0088c768 | 77 | |
917317f4 JM |
78 | /* Transfer LEN bytes between target address MEMADDR and GDB address |
79 | MYADDR. Returns 0 for success, errno code for failure (which | |
80 | includes partial transfers -- if you want a more useful response to | |
81 | partial transfers, try either target_read_memory_partial or | |
82 | target_write_memory_partial). */ | |
c906108c | 83 | |
570b8f7c AC |
84 | static int target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, |
85 | int write); | |
c906108c | 86 | |
a14ed312 | 87 | static void init_dummy_target (void); |
c906108c | 88 | |
aa869812 AC |
89 | static struct target_ops debug_target; |
90 | ||
a14ed312 | 91 | static void debug_to_open (char *, int); |
c906108c | 92 | |
a14ed312 | 93 | static void debug_to_close (int); |
c906108c | 94 | |
a14ed312 | 95 | static void debug_to_attach (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void debug_to_detach (char *, int); |
c906108c | 98 | |
6ad8ae5c DJ |
99 | static void debug_to_disconnect (char *, int); |
100 | ||
39f77062 | 101 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 102 | |
39f77062 | 103 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 104 | |
a14ed312 | 105 | static void debug_to_fetch_registers (int); |
c906108c | 106 | |
a14ed312 | 107 | static void debug_to_store_registers (int); |
c906108c | 108 | |
a14ed312 | 109 | static void debug_to_prepare_to_store (void); |
c906108c | 110 | |
c8e73a31 AC |
111 | static int deprecated_debug_xfer_memory (CORE_ADDR, char *, int, int, |
112 | struct mem_attrib *, | |
113 | struct target_ops *); | |
c906108c | 114 | |
a14ed312 | 115 | static void debug_to_files_info (struct target_ops *); |
c906108c | 116 | |
a14ed312 | 117 | static int debug_to_insert_breakpoint (CORE_ADDR, char *); |
c906108c | 118 | |
a14ed312 | 119 | static int debug_to_remove_breakpoint (CORE_ADDR, char *); |
c906108c | 120 | |
ccaa32c7 GS |
121 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
122 | ||
123 | static int debug_to_insert_hw_breakpoint (CORE_ADDR, char *); | |
124 | ||
125 | static int debug_to_remove_hw_breakpoint (CORE_ADDR, char *); | |
126 | ||
127 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
128 | ||
129 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
130 | ||
131 | static int debug_to_stopped_by_watchpoint (void); | |
132 | ||
4aa7a7f5 | 133 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 GS |
134 | |
135 | static int debug_to_region_size_ok_for_hw_watchpoint (int); | |
136 | ||
a14ed312 | 137 | static void debug_to_terminal_init (void); |
c906108c | 138 | |
a14ed312 | 139 | static void debug_to_terminal_inferior (void); |
c906108c | 140 | |
a14ed312 | 141 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 142 | |
a790ad35 SC |
143 | static void debug_to_terminal_save_ours (void); |
144 | ||
a14ed312 | 145 | static void debug_to_terminal_ours (void); |
c906108c | 146 | |
a14ed312 | 147 | static void debug_to_terminal_info (char *, int); |
c906108c | 148 | |
a14ed312 | 149 | static void debug_to_kill (void); |
c906108c | 150 | |
a14ed312 | 151 | static void debug_to_load (char *, int); |
c906108c | 152 | |
a14ed312 | 153 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 154 | |
a14ed312 | 155 | static void debug_to_mourn_inferior (void); |
c906108c | 156 | |
a14ed312 | 157 | static int debug_to_can_run (void); |
c906108c | 158 | |
39f77062 | 159 | static void debug_to_notice_signals (ptid_t); |
c906108c | 160 | |
39f77062 | 161 | static int debug_to_thread_alive (ptid_t); |
c906108c | 162 | |
a14ed312 | 163 | static void debug_to_stop (void); |
c906108c | 164 | |
5ac10fd1 AC |
165 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
166 | wierd and mysterious ways. Putting the variable here lets those | |
167 | wierd and mysterious ways keep building while they are being | |
168 | converted to the inferior inheritance structure. */ | |
1df84f13 | 169 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 170 | |
c906108c SS |
171 | /* Pointer to array of target architecture structures; the size of the |
172 | array; the current index into the array; the allocated size of the | |
173 | array. */ | |
174 | struct target_ops **target_structs; | |
175 | unsigned target_struct_size; | |
176 | unsigned target_struct_index; | |
177 | unsigned target_struct_allocsize; | |
178 | #define DEFAULT_ALLOCSIZE 10 | |
179 | ||
180 | /* The initial current target, so that there is always a semi-valid | |
181 | current target. */ | |
182 | ||
183 | static struct target_ops dummy_target; | |
184 | ||
185 | /* Top of target stack. */ | |
186 | ||
258b763a | 187 | static struct target_ops *target_stack; |
c906108c SS |
188 | |
189 | /* The target structure we are currently using to talk to a process | |
190 | or file or whatever "inferior" we have. */ | |
191 | ||
192 | struct target_ops current_target; | |
193 | ||
194 | /* Command list for target. */ | |
195 | ||
196 | static struct cmd_list_element *targetlist = NULL; | |
197 | ||
198 | /* Nonzero if we are debugging an attached outside process | |
199 | rather than an inferior. */ | |
200 | ||
201 | int attach_flag; | |
202 | ||
c906108c SS |
203 | /* Non-zero if we want to see trace of target level stuff. */ |
204 | ||
205 | static int targetdebug = 0; | |
920d2a44 AC |
206 | static void |
207 | show_targetdebug (struct ui_file *file, int from_tty, | |
208 | struct cmd_list_element *c, const char *value) | |
209 | { | |
210 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
211 | } | |
c906108c | 212 | |
a14ed312 | 213 | static void setup_target_debug (void); |
c906108c | 214 | |
4930751a C |
215 | DCACHE *target_dcache; |
216 | ||
c906108c SS |
217 | /* The user just typed 'target' without the name of a target. */ |
218 | ||
c906108c | 219 | static void |
fba45db2 | 220 | target_command (char *arg, int from_tty) |
c906108c SS |
221 | { |
222 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
223 | gdb_stdout); | |
224 | } | |
225 | ||
226 | /* Add a possible target architecture to the list. */ | |
227 | ||
228 | void | |
fba45db2 | 229 | add_target (struct target_ops *t) |
c906108c | 230 | { |
0088c768 | 231 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
232 | if (t->to_xfer_partial == NULL) |
233 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 234 | |
c906108c SS |
235 | if (!target_structs) |
236 | { | |
237 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
238 | target_structs = (struct target_ops **) xmalloc | |
239 | (target_struct_allocsize * sizeof (*target_structs)); | |
240 | } | |
241 | if (target_struct_size >= target_struct_allocsize) | |
242 | { | |
243 | target_struct_allocsize *= 2; | |
244 | target_structs = (struct target_ops **) | |
c5aa993b JM |
245 | xrealloc ((char *) target_structs, |
246 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
247 | } |
248 | target_structs[target_struct_size++] = t; | |
c906108c SS |
249 | |
250 | if (targetlist == NULL) | |
1bedd215 AC |
251 | add_prefix_cmd ("target", class_run, target_command, _("\ |
252 | Connect to a target machine or process.\n\ | |
c906108c SS |
253 | The first argument is the type or protocol of the target machine.\n\ |
254 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
255 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 256 | `help target ' followed by the protocol name."), |
c906108c SS |
257 | &targetlist, "target ", 0, &cmdlist); |
258 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
259 | } | |
260 | ||
261 | /* Stub functions */ | |
262 | ||
263 | void | |
fba45db2 | 264 | target_ignore (void) |
c906108c SS |
265 | { |
266 | } | |
267 | ||
11cf8741 JM |
268 | void |
269 | target_load (char *arg, int from_tty) | |
270 | { | |
4930751a | 271 | dcache_invalidate (target_dcache); |
11cf8741 JM |
272 | (*current_target.to_load) (arg, from_tty); |
273 | } | |
274 | ||
c906108c | 275 | static int |
fba45db2 KB |
276 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
277 | struct target_ops *t) | |
c906108c | 278 | { |
c5aa993b JM |
279 | errno = EIO; /* Can't read/write this location */ |
280 | return 0; /* No bytes handled */ | |
c906108c SS |
281 | } |
282 | ||
283 | static void | |
fba45db2 | 284 | tcomplain (void) |
c906108c | 285 | { |
8a3fe4f8 | 286 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
287 | current_target.to_shortname); |
288 | } | |
289 | ||
290 | void | |
fba45db2 | 291 | noprocess (void) |
c906108c | 292 | { |
8a3fe4f8 | 293 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
294 | } |
295 | ||
c906108c | 296 | static int |
fba45db2 | 297 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 298 | { |
c5aa993b | 299 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
300 | } |
301 | ||
392a587b | 302 | static void |
fba45db2 | 303 | nosupport_runtime (void) |
c906108c | 304 | { |
39f77062 | 305 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
306 | noprocess (); |
307 | else | |
8a3fe4f8 | 308 | error (_("No run-time support for this")); |
c906108c SS |
309 | } |
310 | ||
311 | ||
c906108c | 312 | static void |
fba45db2 | 313 | default_terminal_info (char *args, int from_tty) |
c906108c | 314 | { |
a3f17187 | 315 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
316 | } |
317 | ||
318 | /* This is the default target_create_inferior and target_attach function. | |
319 | If the current target is executing, it asks whether to kill it off. | |
320 | If this function returns without calling error(), it has killed off | |
321 | the target, and the operation should be attempted. */ | |
322 | ||
323 | static void | |
fba45db2 | 324 | kill_or_be_killed (int from_tty) |
c906108c SS |
325 | { |
326 | if (target_has_execution) | |
327 | { | |
a3f17187 | 328 | printf_unfiltered (_("You are already running a program:\n")); |
c906108c | 329 | target_files_info (); |
c5aa993b JM |
330 | if (query ("Kill it? ")) |
331 | { | |
332 | target_kill (); | |
333 | if (target_has_execution) | |
8a3fe4f8 | 334 | error (_("Killing the program did not help.")); |
c5aa993b JM |
335 | return; |
336 | } | |
337 | else | |
338 | { | |
8a3fe4f8 | 339 | error (_("Program not killed.")); |
c5aa993b | 340 | } |
c906108c | 341 | } |
c5aa993b | 342 | tcomplain (); |
c906108c SS |
343 | } |
344 | ||
345 | static void | |
fba45db2 | 346 | maybe_kill_then_attach (char *args, int from_tty) |
c906108c SS |
347 | { |
348 | kill_or_be_killed (from_tty); | |
349 | target_attach (args, from_tty); | |
350 | } | |
351 | ||
352 | static void | |
c27cda74 AC |
353 | maybe_kill_then_create_inferior (char *exec, char *args, char **env, |
354 | int from_tty) | |
c906108c SS |
355 | { |
356 | kill_or_be_killed (0); | |
c27cda74 | 357 | target_create_inferior (exec, args, env, from_tty); |
c906108c SS |
358 | } |
359 | ||
7998dfc3 AC |
360 | /* Go through the target stack from top to bottom, copying over zero |
361 | entries in current_target, then filling in still empty entries. In | |
362 | effect, we are doing class inheritance through the pushed target | |
363 | vectors. | |
364 | ||
365 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
366 | is currently implemented, is that it discards any knowledge of | |
367 | which target an inherited method originally belonged to. | |
368 | Consequently, new new target methods should instead explicitly and | |
369 | locally search the target stack for the target that can handle the | |
370 | request. */ | |
c906108c SS |
371 | |
372 | static void | |
7998dfc3 | 373 | update_current_target (void) |
c906108c | 374 | { |
7998dfc3 AC |
375 | struct target_ops *t; |
376 | ||
377 | /* First, reset curren'ts contents. */ | |
378 | memset (¤t_target, 0, sizeof (current_target)); | |
379 | ||
380 | #define INHERIT(FIELD, TARGET) \ | |
381 | if (!current_target.FIELD) \ | |
382 | current_target.FIELD = (TARGET)->FIELD | |
383 | ||
384 | for (t = target_stack; t; t = t->beneath) | |
385 | { | |
386 | INHERIT (to_shortname, t); | |
387 | INHERIT (to_longname, t); | |
388 | INHERIT (to_doc, t); | |
389 | INHERIT (to_open, t); | |
390 | INHERIT (to_close, t); | |
391 | INHERIT (to_attach, t); | |
392 | INHERIT (to_post_attach, t); | |
393 | INHERIT (to_detach, t); | |
394 | INHERIT (to_disconnect, t); | |
395 | INHERIT (to_resume, t); | |
396 | INHERIT (to_wait, t); | |
7998dfc3 AC |
397 | INHERIT (to_fetch_registers, t); |
398 | INHERIT (to_store_registers, t); | |
399 | INHERIT (to_prepare_to_store, t); | |
c8e73a31 | 400 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
401 | INHERIT (to_files_info, t); |
402 | INHERIT (to_insert_breakpoint, t); | |
403 | INHERIT (to_remove_breakpoint, t); | |
404 | INHERIT (to_can_use_hw_breakpoint, t); | |
405 | INHERIT (to_insert_hw_breakpoint, t); | |
406 | INHERIT (to_remove_hw_breakpoint, t); | |
407 | INHERIT (to_insert_watchpoint, t); | |
408 | INHERIT (to_remove_watchpoint, t); | |
409 | INHERIT (to_stopped_data_address, t); | |
410 | INHERIT (to_stopped_by_watchpoint, t); | |
411 | INHERIT (to_have_continuable_watchpoint, t); | |
412 | INHERIT (to_region_size_ok_for_hw_watchpoint, t); | |
413 | INHERIT (to_terminal_init, t); | |
414 | INHERIT (to_terminal_inferior, t); | |
415 | INHERIT (to_terminal_ours_for_output, t); | |
416 | INHERIT (to_terminal_ours, t); | |
417 | INHERIT (to_terminal_save_ours, t); | |
418 | INHERIT (to_terminal_info, t); | |
419 | INHERIT (to_kill, t); | |
420 | INHERIT (to_load, t); | |
421 | INHERIT (to_lookup_symbol, t); | |
422 | INHERIT (to_create_inferior, t); | |
423 | INHERIT (to_post_startup_inferior, t); | |
424 | INHERIT (to_acknowledge_created_inferior, t); | |
425 | INHERIT (to_insert_fork_catchpoint, t); | |
426 | INHERIT (to_remove_fork_catchpoint, t); | |
427 | INHERIT (to_insert_vfork_catchpoint, t); | |
428 | INHERIT (to_remove_vfork_catchpoint, t); | |
429 | INHERIT (to_follow_fork, t); | |
430 | INHERIT (to_insert_exec_catchpoint, t); | |
431 | INHERIT (to_remove_exec_catchpoint, t); | |
432 | INHERIT (to_reported_exec_events_per_exec_call, t); | |
433 | INHERIT (to_has_exited, t); | |
434 | INHERIT (to_mourn_inferior, t); | |
435 | INHERIT (to_can_run, t); | |
436 | INHERIT (to_notice_signals, t); | |
437 | INHERIT (to_thread_alive, t); | |
438 | INHERIT (to_find_new_threads, t); | |
439 | INHERIT (to_pid_to_str, t); | |
440 | INHERIT (to_extra_thread_info, t); | |
441 | INHERIT (to_stop, t); | |
4b8a223f | 442 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 AC |
443 | INHERIT (to_rcmd, t); |
444 | INHERIT (to_enable_exception_callback, t); | |
445 | INHERIT (to_get_current_exception_event, t); | |
446 | INHERIT (to_pid_to_exec_file, t); | |
447 | INHERIT (to_stratum, t); | |
448 | INHERIT (to_has_all_memory, t); | |
449 | INHERIT (to_has_memory, t); | |
450 | INHERIT (to_has_stack, t); | |
451 | INHERIT (to_has_registers, t); | |
452 | INHERIT (to_has_execution, t); | |
453 | INHERIT (to_has_thread_control, t); | |
454 | INHERIT (to_sections, t); | |
455 | INHERIT (to_sections_end, t); | |
456 | INHERIT (to_can_async_p, t); | |
457 | INHERIT (to_is_async_p, t); | |
458 | INHERIT (to_async, t); | |
459 | INHERIT (to_async_mask_value, t); | |
460 | INHERIT (to_find_memory_regions, t); | |
461 | INHERIT (to_make_corefile_notes, t); | |
462 | INHERIT (to_get_thread_local_address, t); | |
463 | INHERIT (to_magic, t); | |
464 | } | |
465 | #undef INHERIT | |
466 | ||
467 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
468 | it. Some entries are defaulted to a method that print an error, |
469 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
470 | |
471 | #define de_fault(field, value) \ | |
7998dfc3 AC |
472 | if (!current_target.field) \ |
473 | current_target.field = value | |
0d06e24b JM |
474 | |
475 | de_fault (to_open, | |
476 | (void (*) (char *, int)) | |
477 | tcomplain); | |
478 | de_fault (to_close, | |
479 | (void (*) (int)) | |
480 | target_ignore); | |
481 | de_fault (to_attach, | |
482 | maybe_kill_then_attach); | |
483 | de_fault (to_post_attach, | |
484 | (void (*) (int)) | |
485 | target_ignore); | |
0d06e24b JM |
486 | de_fault (to_detach, |
487 | (void (*) (char *, int)) | |
488 | target_ignore); | |
6ad8ae5c DJ |
489 | de_fault (to_disconnect, |
490 | (void (*) (char *, int)) | |
491 | tcomplain); | |
0d06e24b | 492 | de_fault (to_resume, |
39f77062 | 493 | (void (*) (ptid_t, int, enum target_signal)) |
0d06e24b JM |
494 | noprocess); |
495 | de_fault (to_wait, | |
39f77062 | 496 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) |
0d06e24b | 497 | noprocess); |
0d06e24b JM |
498 | de_fault (to_fetch_registers, |
499 | (void (*) (int)) | |
500 | target_ignore); | |
501 | de_fault (to_store_registers, | |
502 | (void (*) (int)) | |
503 | noprocess); | |
504 | de_fault (to_prepare_to_store, | |
505 | (void (*) (void)) | |
506 | noprocess); | |
c8e73a31 | 507 | de_fault (deprecated_xfer_memory, |
29e57380 | 508 | (int (*) (CORE_ADDR, char *, int, int, struct mem_attrib *, struct target_ops *)) |
0d06e24b JM |
509 | nomemory); |
510 | de_fault (to_files_info, | |
511 | (void (*) (struct target_ops *)) | |
512 | target_ignore); | |
513 | de_fault (to_insert_breakpoint, | |
514 | memory_insert_breakpoint); | |
515 | de_fault (to_remove_breakpoint, | |
516 | memory_remove_breakpoint); | |
ccaa32c7 GS |
517 | de_fault (to_can_use_hw_breakpoint, |
518 | (int (*) (int, int, int)) | |
519 | return_zero); | |
520 | de_fault (to_insert_hw_breakpoint, | |
521 | (int (*) (CORE_ADDR, char *)) | |
522 | return_minus_one); | |
523 | de_fault (to_remove_hw_breakpoint, | |
524 | (int (*) (CORE_ADDR, char *)) | |
525 | return_minus_one); | |
526 | de_fault (to_insert_watchpoint, | |
527 | (int (*) (CORE_ADDR, int, int)) | |
528 | return_minus_one); | |
529 | de_fault (to_remove_watchpoint, | |
530 | (int (*) (CORE_ADDR, int, int)) | |
531 | return_minus_one); | |
532 | de_fault (to_stopped_by_watchpoint, | |
533 | (int (*) (void)) | |
534 | return_zero); | |
535 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 536 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 GS |
537 | return_zero); |
538 | de_fault (to_region_size_ok_for_hw_watchpoint, | |
539 | default_region_size_ok_for_hw_watchpoint); | |
0d06e24b JM |
540 | de_fault (to_terminal_init, |
541 | (void (*) (void)) | |
542 | target_ignore); | |
543 | de_fault (to_terminal_inferior, | |
544 | (void (*) (void)) | |
545 | target_ignore); | |
546 | de_fault (to_terminal_ours_for_output, | |
547 | (void (*) (void)) | |
548 | target_ignore); | |
549 | de_fault (to_terminal_ours, | |
550 | (void (*) (void)) | |
551 | target_ignore); | |
a790ad35 SC |
552 | de_fault (to_terminal_save_ours, |
553 | (void (*) (void)) | |
554 | target_ignore); | |
0d06e24b JM |
555 | de_fault (to_terminal_info, |
556 | default_terminal_info); | |
557 | de_fault (to_kill, | |
558 | (void (*) (void)) | |
559 | noprocess); | |
560 | de_fault (to_load, | |
561 | (void (*) (char *, int)) | |
562 | tcomplain); | |
563 | de_fault (to_lookup_symbol, | |
564 | (int (*) (char *, CORE_ADDR *)) | |
565 | nosymbol); | |
566 | de_fault (to_create_inferior, | |
567 | maybe_kill_then_create_inferior); | |
568 | de_fault (to_post_startup_inferior, | |
39f77062 | 569 | (void (*) (ptid_t)) |
0d06e24b JM |
570 | target_ignore); |
571 | de_fault (to_acknowledge_created_inferior, | |
572 | (void (*) (int)) | |
573 | target_ignore); | |
0d06e24b | 574 | de_fault (to_insert_fork_catchpoint, |
fa113d1a | 575 | (void (*) (int)) |
0d06e24b JM |
576 | tcomplain); |
577 | de_fault (to_remove_fork_catchpoint, | |
578 | (int (*) (int)) | |
579 | tcomplain); | |
580 | de_fault (to_insert_vfork_catchpoint, | |
fa113d1a | 581 | (void (*) (int)) |
0d06e24b JM |
582 | tcomplain); |
583 | de_fault (to_remove_vfork_catchpoint, | |
584 | (int (*) (int)) | |
585 | tcomplain); | |
4c9ba7e0 | 586 | de_fault (to_follow_fork, |
6604731b | 587 | (int (*) (int)) |
0d06e24b JM |
588 | target_ignore); |
589 | de_fault (to_insert_exec_catchpoint, | |
fa113d1a | 590 | (void (*) (int)) |
0d06e24b JM |
591 | tcomplain); |
592 | de_fault (to_remove_exec_catchpoint, | |
593 | (int (*) (int)) | |
594 | tcomplain); | |
0d06e24b JM |
595 | de_fault (to_reported_exec_events_per_exec_call, |
596 | (int (*) (void)) | |
597 | return_one); | |
0d06e24b JM |
598 | de_fault (to_has_exited, |
599 | (int (*) (int, int, int *)) | |
600 | return_zero); | |
601 | de_fault (to_mourn_inferior, | |
602 | (void (*) (void)) | |
603 | noprocess); | |
604 | de_fault (to_can_run, | |
605 | return_zero); | |
606 | de_fault (to_notice_signals, | |
39f77062 | 607 | (void (*) (ptid_t)) |
0d06e24b JM |
608 | target_ignore); |
609 | de_fault (to_thread_alive, | |
39f77062 | 610 | (int (*) (ptid_t)) |
0d06e24b JM |
611 | return_zero); |
612 | de_fault (to_find_new_threads, | |
613 | (void (*) (void)) | |
614 | target_ignore); | |
615 | de_fault (to_extra_thread_info, | |
616 | (char *(*) (struct thread_info *)) | |
617 | return_zero); | |
618 | de_fault (to_stop, | |
619 | (void (*) (void)) | |
620 | target_ignore); | |
4b8a223f | 621 | current_target.to_xfer_partial = default_xfer_partial; |
0d06e24b | 622 | de_fault (to_rcmd, |
d9fcf2fb | 623 | (void (*) (char *, struct ui_file *)) |
0d06e24b JM |
624 | tcomplain); |
625 | de_fault (to_enable_exception_callback, | |
626 | (struct symtab_and_line * (*) (enum exception_event_kind, int)) | |
627 | nosupport_runtime); | |
628 | de_fault (to_get_current_exception_event, | |
629 | (struct exception_event_record * (*) (void)) | |
630 | nosupport_runtime); | |
631 | de_fault (to_pid_to_exec_file, | |
632 | (char *(*) (int)) | |
633 | return_zero); | |
0d06e24b JM |
634 | de_fault (to_can_async_p, |
635 | (int (*) (void)) | |
636 | return_zero); | |
637 | de_fault (to_is_async_p, | |
638 | (int (*) (void)) | |
639 | return_zero); | |
640 | de_fault (to_async, | |
641 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
642 | tcomplain); | |
c906108c | 643 | #undef de_fault |
c906108c | 644 | |
7998dfc3 AC |
645 | /* Finally, position the target-stack beneath the squashed |
646 | "current_target". That way code looking for a non-inherited | |
647 | target method can quickly and simply find it. */ | |
648 | current_target.beneath = target_stack; | |
c906108c SS |
649 | } |
650 | ||
651 | /* Push a new target type into the stack of the existing target accessors, | |
652 | possibly superseding some of the existing accessors. | |
653 | ||
654 | Result is zero if the pushed target ended up on top of the stack, | |
655 | nonzero if at least one target is on top of it. | |
656 | ||
657 | Rather than allow an empty stack, we always have the dummy target at | |
658 | the bottom stratum, so we can call the function vectors without | |
659 | checking them. */ | |
660 | ||
661 | int | |
fba45db2 | 662 | push_target (struct target_ops *t) |
c906108c | 663 | { |
258b763a | 664 | struct target_ops **cur; |
c906108c SS |
665 | |
666 | /* Check magic number. If wrong, it probably means someone changed | |
667 | the struct definition, but not all the places that initialize one. */ | |
668 | if (t->to_magic != OPS_MAGIC) | |
669 | { | |
c5aa993b JM |
670 | fprintf_unfiltered (gdb_stderr, |
671 | "Magic number of %s target struct wrong\n", | |
672 | t->to_shortname); | |
e2e0b3e5 | 673 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
674 | } |
675 | ||
258b763a AC |
676 | /* Find the proper stratum to install this target in. */ |
677 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 678 | { |
258b763a | 679 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
680 | break; |
681 | } | |
682 | ||
258b763a AC |
683 | /* If there's already targets at this stratum, remove them. */ |
684 | /* FIXME: cagney/2003-10-15: I think this should be poping all | |
685 | targets to CUR, and not just those at this stratum level. */ | |
686 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
687 | { | |
688 | /* There's already something at this stratum level. Close it, | |
689 | and un-hook it from the stack. */ | |
690 | struct target_ops *tmp = (*cur); | |
691 | (*cur) = (*cur)->beneath; | |
692 | tmp->beneath = NULL; | |
f1c07ab0 | 693 | target_close (tmp, 0); |
258b763a | 694 | } |
c906108c SS |
695 | |
696 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
697 | t->beneath = (*cur); |
698 | (*cur) = t; | |
c906108c SS |
699 | |
700 | update_current_target (); | |
701 | ||
c906108c SS |
702 | if (targetdebug) |
703 | setup_target_debug (); | |
c906108c | 704 | |
258b763a AC |
705 | /* Not on top? */ |
706 | return (t != target_stack); | |
c906108c SS |
707 | } |
708 | ||
709 | /* Remove a target_ops vector from the stack, wherever it may be. | |
710 | Return how many times it was removed (0 or 1). */ | |
711 | ||
712 | int | |
fba45db2 | 713 | unpush_target (struct target_ops *t) |
c906108c | 714 | { |
258b763a AC |
715 | struct target_ops **cur; |
716 | struct target_ops *tmp; | |
c906108c | 717 | |
c906108c SS |
718 | /* Look for the specified target. Note that we assume that a target |
719 | can only occur once in the target stack. */ | |
720 | ||
258b763a AC |
721 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
722 | { | |
723 | if ((*cur) == t) | |
724 | break; | |
725 | } | |
c906108c | 726 | |
258b763a | 727 | if ((*cur) == NULL) |
c906108c SS |
728 | return 0; /* Didn't find target_ops, quit now */ |
729 | ||
5269965e AC |
730 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
731 | unconditional by moving it to before the above check that the | |
732 | target was in the target stack (something about "Change the way | |
733 | pushing and popping of targets work to support target overlays | |
734 | and inheritance"). This doesn't make much sense - only open | |
735 | targets should be closed. */ | |
736 | target_close (t, 0); | |
737 | ||
c906108c | 738 | /* Unchain the target */ |
258b763a AC |
739 | tmp = (*cur); |
740 | (*cur) = (*cur)->beneath; | |
741 | tmp->beneath = NULL; | |
c906108c SS |
742 | |
743 | update_current_target (); | |
c906108c SS |
744 | |
745 | return 1; | |
746 | } | |
747 | ||
748 | void | |
fba45db2 | 749 | pop_target (void) |
c906108c | 750 | { |
f1c07ab0 | 751 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 752 | if (unpush_target (target_stack) == 1) |
c906108c SS |
753 | return; |
754 | ||
c5aa993b JM |
755 | fprintf_unfiltered (gdb_stderr, |
756 | "pop_target couldn't find target %s\n", | |
757 | current_target.to_shortname); | |
e2e0b3e5 | 758 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
759 | } |
760 | ||
761 | #undef MIN | |
762 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
763 | ||
764 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
765 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
766 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
767 | is responsible for freeing it. Return the number of bytes successfully | |
768 | read. */ | |
769 | ||
770 | int | |
fba45db2 | 771 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
772 | { |
773 | int tlen, origlen, offset, i; | |
774 | char buf[4]; | |
775 | int errcode = 0; | |
776 | char *buffer; | |
777 | int buffer_allocated; | |
778 | char *bufptr; | |
779 | unsigned int nbytes_read = 0; | |
780 | ||
781 | /* Small for testing. */ | |
782 | buffer_allocated = 4; | |
783 | buffer = xmalloc (buffer_allocated); | |
784 | bufptr = buffer; | |
785 | ||
786 | origlen = len; | |
787 | ||
788 | while (len > 0) | |
789 | { | |
790 | tlen = MIN (len, 4 - (memaddr & 3)); | |
791 | offset = memaddr & 3; | |
792 | ||
b8eb5af0 | 793 | errcode = target_read_memory (memaddr & ~3, buf, 4); |
c906108c SS |
794 | if (errcode != 0) |
795 | { | |
796 | /* The transfer request might have crossed the boundary to an | |
797 | unallocated region of memory. Retry the transfer, requesting | |
798 | a single byte. */ | |
799 | tlen = 1; | |
800 | offset = 0; | |
b8eb5af0 | 801 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
802 | if (errcode != 0) |
803 | goto done; | |
804 | } | |
805 | ||
806 | if (bufptr - buffer + tlen > buffer_allocated) | |
807 | { | |
808 | unsigned int bytes; | |
809 | bytes = bufptr - buffer; | |
810 | buffer_allocated *= 2; | |
811 | buffer = xrealloc (buffer, buffer_allocated); | |
812 | bufptr = buffer + bytes; | |
813 | } | |
814 | ||
815 | for (i = 0; i < tlen; i++) | |
816 | { | |
817 | *bufptr++ = buf[i + offset]; | |
818 | if (buf[i + offset] == '\000') | |
819 | { | |
820 | nbytes_read += i + 1; | |
821 | goto done; | |
822 | } | |
823 | } | |
824 | ||
825 | memaddr += tlen; | |
826 | len -= tlen; | |
827 | nbytes_read += tlen; | |
828 | } | |
c5aa993b | 829 | done: |
c906108c SS |
830 | if (errnop != NULL) |
831 | *errnop = errcode; | |
832 | if (string != NULL) | |
833 | *string = buffer; | |
834 | return nbytes_read; | |
835 | } | |
836 | ||
8db32d44 AC |
837 | /* Find a section containing ADDR. */ |
838 | struct section_table * | |
839 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
840 | { | |
841 | struct section_table *secp; | |
842 | for (secp = target->to_sections; | |
843 | secp < target->to_sections_end; | |
844 | secp++) | |
845 | { | |
846 | if (addr >= secp->addr && addr < secp->endaddr) | |
847 | return secp; | |
848 | } | |
849 | return NULL; | |
850 | } | |
851 | ||
0779438d AC |
852 | /* Return non-zero when the target vector has supplied an xfer_partial |
853 | method and it, rather than xfer_memory, should be used. */ | |
854 | static int | |
855 | target_xfer_partial_p (void) | |
856 | { | |
857 | return (target_stack != NULL | |
858 | && target_stack->to_xfer_partial != default_xfer_partial); | |
859 | } | |
860 | ||
27394598 AC |
861 | static LONGEST |
862 | target_xfer_partial (struct target_ops *ops, | |
863 | enum target_object object, const char *annex, | |
864 | void *readbuf, const void *writebuf, | |
865 | ULONGEST offset, LONGEST len) | |
866 | { | |
867 | LONGEST retval; | |
868 | ||
869 | gdb_assert (ops->to_xfer_partial != NULL); | |
870 | retval = ops->to_xfer_partial (ops, object, annex, readbuf, writebuf, | |
871 | offset, len); | |
872 | if (targetdebug) | |
873 | { | |
874 | const unsigned char *myaddr = NULL; | |
875 | ||
876 | fprintf_unfiltered (gdb_stdlog, | |
877 | "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s", | |
878 | ops->to_shortname, | |
879 | (int) object, | |
880 | (annex ? annex : "(null)"), | |
881 | (long) readbuf, (long) writebuf, | |
882 | paddr_nz (offset), paddr_d (len), paddr_d (retval)); | |
883 | ||
884 | if (readbuf) | |
885 | myaddr = readbuf; | |
886 | if (writebuf) | |
887 | myaddr = writebuf; | |
888 | if (retval > 0 && myaddr != NULL) | |
889 | { | |
890 | int i; | |
891 | ||
892 | fputs_unfiltered (", bytes =", gdb_stdlog); | |
893 | for (i = 0; i < retval; i++) | |
894 | { | |
895 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
896 | { | |
897 | if (targetdebug < 2 && i > 0) | |
898 | { | |
899 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
900 | break; | |
901 | } | |
902 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
903 | } | |
904 | ||
905 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); | |
906 | } | |
907 | } | |
908 | ||
909 | fputc_unfiltered ('\n', gdb_stdlog); | |
910 | } | |
911 | return retval; | |
912 | } | |
913 | ||
0779438d AC |
914 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
915 | inferior's KIND:ANNEX space and GDB's READBUF/WRITEBUF buffer. If | |
916 | the transfer succeeds, return zero, otherwize the host ERRNO is | |
917 | returned. | |
918 | ||
919 | The inferior is formed from several layers. In the case of | |
920 | corefiles, inf-corefile is layered above inf-exec and a request for | |
921 | text (corefiles do not include text pages) will be first sent to | |
922 | the core-stratum, fail, and then sent to the object-file where it | |
923 | will succeed. | |
924 | ||
925 | NOTE: cagney/2004-09-30: | |
926 | ||
927 | The old code tried to use four separate mechanisms for mapping an | |
928 | object:offset:len tuple onto an inferior and its address space: the | |
929 | target stack; the inferior's TO_SECTIONS; solib's SO_LIST; | |
930 | overlays. | |
931 | ||
932 | This is stupid. | |
933 | ||
934 | The code below is instead using a single mechanism (currently | |
935 | strata). If that mechanism proves insufficient then re-factor it | |
936 | implementing another singluar mechanism (for instance, a generic | |
937 | object:annex onto inferior:object:annex say). */ | |
938 | ||
cb85a953 | 939 | static LONGEST |
0779438d | 940 | xfer_using_stratum (enum target_object object, const char *annex, |
cb85a953 | 941 | ULONGEST offset, LONGEST len, void *readbuf, |
0779438d AC |
942 | const void *writebuf) |
943 | { | |
944 | LONGEST xfered; | |
945 | struct target_ops *target; | |
946 | ||
947 | /* Always successful. */ | |
948 | if (len == 0) | |
949 | return 0; | |
950 | /* Never successful. */ | |
951 | if (target_stack == NULL) | |
952 | return EIO; | |
953 | ||
954 | target = target_stack; | |
955 | while (1) | |
956 | { | |
27394598 | 957 | xfered = target_xfer_partial (target, object, annex, |
cb85a953 | 958 | readbuf, writebuf, offset, len); |
0779438d AC |
959 | if (xfered > 0) |
960 | { | |
961 | /* The partial xfer succeeded, update the counts, check that | |
962 | the xfer hasn't finished and if it hasn't set things up | |
963 | for the next round. */ | |
964 | len -= xfered; | |
965 | if (len <= 0) | |
966 | return 0; | |
cb85a953 AC |
967 | offset += xfered; |
968 | if (readbuf != NULL) | |
969 | readbuf = (bfd_byte *) readbuf + xfered; | |
970 | if (writebuf != NULL) | |
971 | writebuf = (bfd_byte *) writebuf + xfered; | |
0779438d AC |
972 | target = target_stack; |
973 | } | |
974 | else if (xfered < 0) | |
975 | { | |
976 | /* Something totally screwed up, abandon the attempt to | |
977 | xfer. */ | |
978 | if (errno) | |
979 | return errno; | |
980 | else | |
981 | return EIO; | |
982 | } | |
983 | else | |
984 | { | |
985 | /* This "stratum" didn't work, try the next one down. */ | |
986 | target = target->beneath; | |
987 | if (target == NULL) | |
988 | return EIO; | |
989 | } | |
990 | } | |
991 | } | |
992 | ||
c906108c SS |
993 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
994 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
995 | if any error occurs. | |
996 | ||
997 | If an error occurs, no guarantee is made about the contents of the data at | |
998 | MYADDR. In particular, the caller should not depend upon partial reads | |
999 | filling the buffer with good data. There is no way for the caller to know | |
1000 | how much good data might have been transfered anyway. Callers that can | |
1001 | deal with partial reads should call target_read_memory_partial. */ | |
1002 | ||
1003 | int | |
10e2d419 | 1004 | target_read_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len) |
c906108c | 1005 | { |
0779438d AC |
1006 | if (target_xfer_partial_p ()) |
1007 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
1008 | memaddr, len, myaddr, NULL); | |
1009 | else | |
1010 | return target_xfer_memory (memaddr, myaddr, len, 0); | |
c906108c SS |
1011 | } |
1012 | ||
c906108c | 1013 | int |
10e2d419 | 1014 | target_write_memory (CORE_ADDR memaddr, const bfd_byte *myaddr, int len) |
c906108c | 1015 | { |
10e2d419 AC |
1016 | bfd_byte *bytes = alloca (len); |
1017 | memcpy (bytes, myaddr, len); | |
0779438d AC |
1018 | if (target_xfer_partial_p ()) |
1019 | return xfer_using_stratum (TARGET_OBJECT_MEMORY, NULL, | |
10e2d419 | 1020 | memaddr, len, NULL, bytes); |
0779438d | 1021 | else |
10e2d419 | 1022 | return target_xfer_memory (memaddr, bytes, len, 1); |
c906108c | 1023 | } |
c5aa993b | 1024 | |
4aa7a7f5 JJ |
1025 | #ifndef target_stopped_data_address_p |
1026 | int | |
1027 | target_stopped_data_address_p (struct target_ops *target) | |
1028 | { | |
aa869812 AC |
1029 | if (target->to_stopped_data_address |
1030 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero) | |
4aa7a7f5 | 1031 | return 0; |
aa869812 AC |
1032 | if (target->to_stopped_data_address == debug_to_stopped_data_address |
1033 | && (debug_target.to_stopped_data_address | |
1034 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero)) | |
1035 | return 0; | |
1036 | return 1; | |
4aa7a7f5 JJ |
1037 | } |
1038 | #endif | |
1039 | ||
3a11626d | 1040 | static int trust_readonly = 0; |
920d2a44 AC |
1041 | static void |
1042 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1043 | struct cmd_list_element *c, const char *value) | |
1044 | { | |
1045 | fprintf_filtered (file, _("\ | |
1046 | Mode for reading from readonly sections is %s.\n"), | |
1047 | value); | |
1048 | } | |
3a11626d | 1049 | |
67e0617e C |
1050 | /* Move memory to or from the targets. The top target gets priority; |
1051 | if it cannot handle it, it is offered to the next one down, etc. | |
c906108c | 1052 | |
67e0617e | 1053 | Result is -1 on error, or the number of bytes transfered. */ |
c906108c | 1054 | |
4930751a | 1055 | int |
29e57380 C |
1056 | do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
1057 | struct mem_attrib *attrib) | |
c906108c | 1058 | { |
c906108c | 1059 | int res; |
4930751a | 1060 | int done = 0; |
c906108c | 1061 | struct target_ops *t; |
c906108c SS |
1062 | |
1063 | /* Zero length requests are ok and require no work. */ | |
1064 | if (len == 0) | |
1065 | return 0; | |
1066 | ||
c8e73a31 AC |
1067 | /* deprecated_xfer_memory is not guaranteed to set errno, even when |
1068 | it returns 0. */ | |
c906108c SS |
1069 | errno = 0; |
1070 | ||
3a11626d MS |
1071 | if (!write && trust_readonly) |
1072 | { | |
8db32d44 | 1073 | struct section_table *secp; |
2ceb85d0 BE |
1074 | /* User-settable option, "trust-readonly-sections". If true, |
1075 | then memory from any SEC_READONLY bfd section may be read | |
8db32d44 AC |
1076 | directly from the bfd file. */ |
1077 | secp = target_section_by_addr (¤t_target, memaddr); | |
1078 | if (secp != NULL | |
1079 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1080 | & SEC_READONLY)) | |
1081 | return xfer_memory (memaddr, myaddr, len, 0, attrib, ¤t_target); | |
3a11626d MS |
1082 | } |
1083 | ||
67e0617e | 1084 | /* The quick case is that the top target can handle the transfer. */ |
c8e73a31 | 1085 | res = current_target.deprecated_xfer_memory |
29e57380 | 1086 | (memaddr, myaddr, len, write, attrib, ¤t_target); |
c906108c | 1087 | |
67e0617e C |
1088 | /* If res <= 0 then we call it again in the loop. Ah well. */ |
1089 | if (res <= 0) | |
c906108c | 1090 | { |
258b763a | 1091 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1092 | { |
c906108c SS |
1093 | if (!t->to_has_memory) |
1094 | continue; | |
1095 | ||
c8e73a31 | 1096 | res = t->deprecated_xfer_memory (memaddr, myaddr, len, write, attrib, t); |
c906108c SS |
1097 | if (res > 0) |
1098 | break; /* Handled all or part of xfer */ | |
1099 | if (t->to_has_all_memory) | |
1100 | break; | |
1101 | } | |
1102 | ||
4930751a | 1103 | if (res <= 0) |
67e0617e | 1104 | return -1; |
4930751a | 1105 | } |
67e0617e C |
1106 | |
1107 | return res; | |
4930751a C |
1108 | } |
1109 | ||
67e0617e C |
1110 | |
1111 | /* Perform a memory transfer. Iterate until the entire region has | |
1112 | been transfered. | |
1113 | ||
1114 | Result is 0 or errno value. */ | |
1115 | ||
4930751a C |
1116 | static int |
1117 | target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write) | |
1118 | { | |
1119 | int res; | |
29e57380 C |
1120 | int reg_len; |
1121 | struct mem_region *region; | |
4930751a C |
1122 | |
1123 | /* Zero length requests are ok and require no work. */ | |
1124 | if (len == 0) | |
1125 | { | |
1126 | return 0; | |
1127 | } | |
1128 | ||
1129 | while (len > 0) | |
1130 | { | |
29e57380 C |
1131 | region = lookup_mem_region(memaddr); |
1132 | if (memaddr + len < region->hi) | |
1133 | reg_len = len; | |
1134 | else | |
1135 | reg_len = region->hi - memaddr; | |
1136 | ||
1137 | switch (region->attrib.mode) | |
c906108c | 1138 | { |
29e57380 C |
1139 | case MEM_RO: |
1140 | if (write) | |
1141 | return EIO; | |
1142 | break; | |
1143 | ||
1144 | case MEM_WO: | |
c906108c | 1145 | if (!write) |
c906108c | 1146 | return EIO; |
29e57380 | 1147 | break; |
c906108c | 1148 | } |
4930751a | 1149 | |
29e57380 C |
1150 | while (reg_len > 0) |
1151 | { | |
1152 | if (region->attrib.cache) | |
8add0441 | 1153 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, |
29e57380 C |
1154 | reg_len, write); |
1155 | else | |
8add0441 | 1156 | res = do_xfer_memory (memaddr, myaddr, reg_len, write, |
29e57380 C |
1157 | ®ion->attrib); |
1158 | ||
1159 | if (res <= 0) | |
1160 | { | |
1161 | /* If this address is for nonexistent memory, read zeros | |
1162 | if reading, or do nothing if writing. Return | |
1163 | error. */ | |
1164 | if (!write) | |
1165 | memset (myaddr, 0, len); | |
1166 | if (errno == 0) | |
1167 | return EIO; | |
1168 | else | |
1169 | return errno; | |
1170 | } | |
1171 | ||
1172 | memaddr += res; | |
1173 | myaddr += res; | |
1174 | len -= res; | |
1175 | reg_len -= res; | |
1176 | } | |
c906108c | 1177 | } |
4930751a | 1178 | |
c906108c SS |
1179 | return 0; /* We managed to cover it all somehow. */ |
1180 | } | |
1181 | ||
1182 | ||
67e0617e C |
1183 | /* Perform a partial memory transfer. |
1184 | ||
1185 | Result is -1 on error, or the number of bytes transfered. */ | |
917317f4 JM |
1186 | |
1187 | static int | |
4930751a | 1188 | target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len, |
917317f4 JM |
1189 | int write_p, int *err) |
1190 | { | |
1191 | int res; | |
29e57380 C |
1192 | int reg_len; |
1193 | struct mem_region *region; | |
917317f4 JM |
1194 | |
1195 | /* Zero length requests are ok and require no work. */ | |
1196 | if (len == 0) | |
1197 | { | |
1198 | *err = 0; | |
1199 | return 0; | |
1200 | } | |
1201 | ||
29e57380 C |
1202 | region = lookup_mem_region(memaddr); |
1203 | if (memaddr + len < region->hi) | |
1204 | reg_len = len; | |
1205 | else | |
1206 | reg_len = region->hi - memaddr; | |
1207 | ||
1208 | switch (region->attrib.mode) | |
1209 | { | |
1210 | case MEM_RO: | |
1211 | if (write_p) | |
1212 | { | |
1213 | *err = EIO; | |
873406a6 | 1214 | return -1; |
29e57380 C |
1215 | } |
1216 | break; | |
1217 | ||
1218 | case MEM_WO: | |
1219 | if (write_p) | |
1220 | { | |
1221 | *err = EIO; | |
873406a6 | 1222 | return -1; |
29e57380 C |
1223 | } |
1224 | break; | |
1225 | } | |
1226 | ||
1227 | if (region->attrib.cache) | |
1228 | res = dcache_xfer_memory (target_dcache, memaddr, myaddr, | |
1229 | reg_len, write_p); | |
1230 | else | |
1231 | res = do_xfer_memory (memaddr, myaddr, reg_len, write_p, | |
1232 | ®ion->attrib); | |
1233 | ||
4930751a | 1234 | if (res <= 0) |
917317f4 | 1235 | { |
4930751a C |
1236 | if (errno != 0) |
1237 | *err = errno; | |
1238 | else | |
1239 | *err = EIO; | |
917317f4 | 1240 | |
4930751a | 1241 | return -1; |
917317f4 JM |
1242 | } |
1243 | ||
4930751a | 1244 | *err = 0; |
67e0617e | 1245 | return res; |
917317f4 JM |
1246 | } |
1247 | ||
1248 | int | |
1249 | target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1250 | { | |
0779438d | 1251 | if (target_xfer_partial_p ()) |
f90221d3 DJ |
1252 | { |
1253 | int retval; | |
1254 | ||
1255 | retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, | |
1256 | NULL, buf, NULL, memaddr, len); | |
1257 | ||
1258 | if (retval <= 0) | |
1259 | { | |
1260 | if (errno) | |
1261 | *err = errno; | |
1262 | else | |
1263 | *err = EIO; | |
1264 | return -1; | |
1265 | } | |
1266 | else | |
1267 | { | |
1268 | *err = 0; | |
1269 | return retval; | |
1270 | } | |
1271 | } | |
0779438d AC |
1272 | else |
1273 | return target_xfer_memory_partial (memaddr, buf, len, 0, err); | |
917317f4 JM |
1274 | } |
1275 | ||
1276 | int | |
1277 | target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err) | |
1278 | { | |
0779438d | 1279 | if (target_xfer_partial_p ()) |
f90221d3 DJ |
1280 | { |
1281 | int retval; | |
1282 | ||
1283 | retval = target_xfer_partial (target_stack, TARGET_OBJECT_MEMORY, | |
1284 | NULL, NULL, buf, memaddr, len); | |
1285 | ||
1286 | if (retval <= 0) | |
1287 | { | |
1288 | if (errno) | |
1289 | *err = errno; | |
1290 | else | |
1291 | *err = EIO; | |
1292 | return -1; | |
1293 | } | |
1294 | else | |
1295 | { | |
1296 | *err = 0; | |
1297 | return retval; | |
1298 | } | |
1299 | } | |
0779438d AC |
1300 | else |
1301 | return target_xfer_memory_partial (memaddr, buf, len, 1, err); | |
917317f4 JM |
1302 | } |
1303 | ||
1e3ff5ad AC |
1304 | /* More generic transfers. */ |
1305 | ||
0088c768 | 1306 | static LONGEST |
8aa91c1e AC |
1307 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
1308 | const char *annex, void *readbuf, | |
1309 | const void *writebuf, ULONGEST offset, LONGEST len) | |
0088c768 AC |
1310 | { |
1311 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1312 | && ops->deprecated_xfer_memory != NULL) |
1313 | /* If available, fall back to the target's | |
1314 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1315 | { |
4b8a223f | 1316 | int xfered = -1; |
0088c768 | 1317 | errno = 0; |
4b8a223f AC |
1318 | if (writebuf != NULL) |
1319 | { | |
1320 | void *buffer = xmalloc (len); | |
1321 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1322 | memcpy (buffer, writebuf, len); | |
c8e73a31 AC |
1323 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1324 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1325 | do_cleanups (cleanup); |
1326 | } | |
1327 | if (readbuf != NULL) | |
c8e73a31 AC |
1328 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, 0/*read*/, |
1329 | NULL, ops); | |
0088c768 AC |
1330 | if (xfered > 0) |
1331 | return xfered; | |
1332 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1333 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1334 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1335 | return 0; |
1336 | else | |
1337 | return -1; | |
1338 | } | |
1339 | else if (ops->beneath != NULL) | |
27394598 AC |
1340 | return target_xfer_partial (ops->beneath, object, annex, |
1341 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1342 | else |
1343 | return -1; | |
1344 | } | |
1345 | ||
1346 | /* Target vector read/write partial wrapper functions. | |
1347 | ||
1348 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1349 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1350 | easier. */ | |
1351 | ||
1e3ff5ad AC |
1352 | LONGEST |
1353 | target_read_partial (struct target_ops *ops, | |
1354 | enum target_object object, | |
1355 | const char *annex, void *buf, | |
1356 | ULONGEST offset, LONGEST len) | |
1357 | { | |
27394598 | 1358 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1359 | } |
1360 | ||
1361 | LONGEST | |
1362 | target_write_partial (struct target_ops *ops, | |
1363 | enum target_object object, | |
1364 | const char *annex, const void *buf, | |
1365 | ULONGEST offset, LONGEST len) | |
1366 | { | |
27394598 | 1367 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1368 | } |
1369 | ||
1370 | /* Wrappers to perform the full transfer. */ | |
1371 | LONGEST | |
1372 | target_read (struct target_ops *ops, | |
1373 | enum target_object object, | |
1374 | const char *annex, void *buf, | |
1375 | ULONGEST offset, LONGEST len) | |
1376 | { | |
1377 | LONGEST xfered = 0; | |
1378 | while (xfered < len) | |
1379 | { | |
0088c768 AC |
1380 | LONGEST xfer = target_read_partial (ops, object, annex, |
1381 | (bfd_byte *) buf + xfered, | |
1382 | offset + xfered, len - xfered); | |
1e3ff5ad | 1383 | /* Call an observer, notifying them of the xfer progress? */ |
0088c768 AC |
1384 | if (xfer <= 0) |
1385 | /* Call memory_error? */ | |
1386 | return -1; | |
1e3ff5ad AC |
1387 | xfered += xfer; |
1388 | QUIT; | |
1389 | } | |
1390 | return len; | |
1391 | } | |
1392 | ||
1393 | LONGEST | |
1394 | target_write (struct target_ops *ops, | |
1395 | enum target_object object, | |
1396 | const char *annex, const void *buf, | |
1397 | ULONGEST offset, LONGEST len) | |
1398 | { | |
1399 | LONGEST xfered = 0; | |
1400 | while (xfered < len) | |
1401 | { | |
1402 | LONGEST xfer = target_write_partial (ops, object, annex, | |
1403 | (bfd_byte *) buf + xfered, | |
1404 | offset + xfered, len - xfered); | |
1405 | /* Call an observer, notifying them of the xfer progress? */ | |
0088c768 AC |
1406 | if (xfer <= 0) |
1407 | /* Call memory_error? */ | |
1408 | return -1; | |
1e3ff5ad AC |
1409 | xfered += xfer; |
1410 | QUIT; | |
1411 | } | |
1412 | return len; | |
1413 | } | |
1414 | ||
b6591e8b AC |
1415 | /* Memory transfer methods. */ |
1416 | ||
1417 | void | |
1418 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, void *buf, | |
1419 | LONGEST len) | |
1420 | { | |
1421 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1422 | != len) | |
1423 | memory_error (EIO, addr); | |
1424 | } | |
1425 | ||
1426 | ULONGEST | |
1427 | get_target_memory_unsigned (struct target_ops *ops, | |
1428 | CORE_ADDR addr, int len) | |
1429 | { | |
1430 | char buf[sizeof (ULONGEST)]; | |
1431 | ||
1432 | gdb_assert (len <= sizeof (buf)); | |
1433 | get_target_memory (ops, addr, buf, len); | |
1434 | return extract_unsigned_integer (buf, len); | |
1435 | } | |
1436 | ||
c906108c | 1437 | static void |
fba45db2 | 1438 | target_info (char *args, int from_tty) |
c906108c SS |
1439 | { |
1440 | struct target_ops *t; | |
c906108c | 1441 | int has_all_mem = 0; |
c5aa993b | 1442 | |
c906108c | 1443 | if (symfile_objfile != NULL) |
a3f17187 | 1444 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 1445 | |
258b763a | 1446 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1447 | { |
c906108c SS |
1448 | if (!t->to_has_memory) |
1449 | continue; | |
1450 | ||
c5aa993b | 1451 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1452 | continue; |
1453 | if (has_all_mem) | |
a3f17187 | 1454 | printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n")); |
c5aa993b JM |
1455 | printf_unfiltered ("%s:\n", t->to_longname); |
1456 | (t->to_files_info) (t); | |
c906108c SS |
1457 | has_all_mem = t->to_has_all_memory; |
1458 | } | |
1459 | } | |
1460 | ||
1461 | /* This is to be called by the open routine before it does | |
1462 | anything. */ | |
1463 | ||
1464 | void | |
fba45db2 | 1465 | target_preopen (int from_tty) |
c906108c | 1466 | { |
c5aa993b | 1467 | dont_repeat (); |
c906108c SS |
1468 | |
1469 | if (target_has_execution) | |
c5aa993b | 1470 | { |
adf40b2e | 1471 | if (!from_tty |
e2e0b3e5 | 1472 | || query (_("A program is being debugged already. Kill it? "))) |
c5aa993b | 1473 | target_kill (); |
c906108c | 1474 | else |
8a3fe4f8 | 1475 | error (_("Program not killed.")); |
c906108c SS |
1476 | } |
1477 | ||
1478 | /* Calling target_kill may remove the target from the stack. But if | |
1479 | it doesn't (which seems like a win for UDI), remove it now. */ | |
1480 | ||
1481 | if (target_has_execution) | |
1482 | pop_target (); | |
1483 | } | |
1484 | ||
1485 | /* Detach a target after doing deferred register stores. */ | |
1486 | ||
1487 | void | |
fba45db2 | 1488 | target_detach (char *args, int from_tty) |
c906108c | 1489 | { |
c906108c SS |
1490 | (current_target.to_detach) (args, from_tty); |
1491 | } | |
1492 | ||
6ad8ae5c DJ |
1493 | void |
1494 | target_disconnect (char *args, int from_tty) | |
1495 | { | |
6ad8ae5c DJ |
1496 | (current_target.to_disconnect) (args, from_tty); |
1497 | } | |
1498 | ||
c906108c | 1499 | void |
fba45db2 | 1500 | target_link (char *modname, CORE_ADDR *t_reloc) |
c906108c | 1501 | { |
cb137aa5 | 1502 | if (DEPRECATED_STREQ (current_target.to_shortname, "rombug")) |
c906108c SS |
1503 | { |
1504 | (current_target.to_lookup_symbol) (modname, t_reloc); | |
1505 | if (*t_reloc == 0) | |
8a3fe4f8 | 1506 | error (_("Unable to link to %s and get relocation in rombug"), modname); |
c906108c SS |
1507 | } |
1508 | else | |
2acceee2 | 1509 | *t_reloc = (CORE_ADDR) -1; |
c906108c SS |
1510 | } |
1511 | ||
ed9a39eb JM |
1512 | int |
1513 | target_async_mask (int mask) | |
1514 | { | |
1515 | int saved_async_masked_status = target_async_mask_value; | |
1516 | target_async_mask_value = mask; | |
1517 | return saved_async_masked_status; | |
1518 | } | |
1519 | ||
c906108c SS |
1520 | /* Look through the list of possible targets for a target that can |
1521 | execute a run or attach command without any other data. This is | |
1522 | used to locate the default process stratum. | |
1523 | ||
1524 | Result is always valid (error() is called for errors). */ | |
1525 | ||
1526 | static struct target_ops * | |
fba45db2 | 1527 | find_default_run_target (char *do_mesg) |
c906108c SS |
1528 | { |
1529 | struct target_ops **t; | |
1530 | struct target_ops *runable = NULL; | |
1531 | int count; | |
1532 | ||
1533 | count = 0; | |
1534 | ||
1535 | for (t = target_structs; t < target_structs + target_struct_size; | |
1536 | ++t) | |
1537 | { | |
c5aa993b | 1538 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
1539 | { |
1540 | runable = *t; | |
1541 | ++count; | |
1542 | } | |
1543 | } | |
1544 | ||
1545 | if (count != 1) | |
8a3fe4f8 | 1546 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); |
c906108c SS |
1547 | |
1548 | return runable; | |
1549 | } | |
1550 | ||
1551 | void | |
fba45db2 | 1552 | find_default_attach (char *args, int from_tty) |
c906108c SS |
1553 | { |
1554 | struct target_ops *t; | |
1555 | ||
c5aa993b | 1556 | t = find_default_run_target ("attach"); |
c906108c SS |
1557 | (t->to_attach) (args, from_tty); |
1558 | return; | |
1559 | } | |
1560 | ||
c906108c | 1561 | void |
c27cda74 AC |
1562 | find_default_create_inferior (char *exec_file, char *allargs, char **env, |
1563 | int from_tty) | |
c906108c SS |
1564 | { |
1565 | struct target_ops *t; | |
1566 | ||
c5aa993b | 1567 | t = find_default_run_target ("run"); |
c27cda74 | 1568 | (t->to_create_inferior) (exec_file, allargs, env, from_tty); |
c906108c SS |
1569 | return; |
1570 | } | |
1571 | ||
ccaa32c7 GS |
1572 | static int |
1573 | default_region_size_ok_for_hw_watchpoint (int byte_count) | |
1574 | { | |
437b434f | 1575 | return (byte_count <= TYPE_LENGTH (builtin_type_void_data_ptr)); |
ccaa32c7 GS |
1576 | } |
1577 | ||
c906108c | 1578 | static int |
fba45db2 | 1579 | return_zero (void) |
c906108c SS |
1580 | { |
1581 | return 0; | |
1582 | } | |
1583 | ||
1584 | static int | |
fba45db2 | 1585 | return_one (void) |
c906108c SS |
1586 | { |
1587 | return 1; | |
1588 | } | |
1589 | ||
ccaa32c7 GS |
1590 | static int |
1591 | return_minus_one (void) | |
1592 | { | |
1593 | return -1; | |
1594 | } | |
1595 | ||
6426a772 JM |
1596 | /* |
1597 | * Resize the to_sections pointer. Also make sure that anyone that | |
1598 | * was holding on to an old value of it gets updated. | |
1599 | * Returns the old size. | |
1600 | */ | |
1601 | ||
1602 | int | |
1603 | target_resize_to_sections (struct target_ops *target, int num_added) | |
1604 | { | |
1605 | struct target_ops **t; | |
1606 | struct section_table *old_value; | |
1607 | int old_count; | |
1608 | ||
1609 | old_value = target->to_sections; | |
1610 | ||
1611 | if (target->to_sections) | |
1612 | { | |
1613 | old_count = target->to_sections_end - target->to_sections; | |
1614 | target->to_sections = (struct section_table *) | |
1615 | xrealloc ((char *) target->to_sections, | |
1616 | (sizeof (struct section_table)) * (num_added + old_count)); | |
1617 | } | |
1618 | else | |
1619 | { | |
1620 | old_count = 0; | |
1621 | target->to_sections = (struct section_table *) | |
1622 | xmalloc ((sizeof (struct section_table)) * num_added); | |
1623 | } | |
1624 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
1625 | ||
1626 | /* Check to see if anyone else was pointing to this structure. | |
1627 | If old_value was null, then no one was. */ | |
1628 | ||
1629 | if (old_value) | |
1630 | { | |
1631 | for (t = target_structs; t < target_structs + target_struct_size; | |
1632 | ++t) | |
1633 | { | |
1634 | if ((*t)->to_sections == old_value) | |
1635 | { | |
1636 | (*t)->to_sections = target->to_sections; | |
1637 | (*t)->to_sections_end = target->to_sections_end; | |
1638 | } | |
1639 | } | |
e354df01 NW |
1640 | /* There is a flattened view of the target stack in current_target, |
1641 | so its to_sections pointer might also need updating. */ | |
1642 | if (current_target.to_sections == old_value) | |
1643 | { | |
1644 | current_target.to_sections = target->to_sections; | |
1645 | current_target.to_sections_end = target->to_sections_end; | |
1646 | } | |
6426a772 JM |
1647 | } |
1648 | ||
1649 | return old_count; | |
1650 | ||
1651 | } | |
1652 | ||
07cd4b97 JB |
1653 | /* Remove all target sections taken from ABFD. |
1654 | ||
1655 | Scan the current target stack for targets whose section tables | |
1656 | refer to sections from BFD, and remove those sections. We use this | |
1657 | when we notice that the inferior has unloaded a shared object, for | |
1658 | example. */ | |
1659 | void | |
1660 | remove_target_sections (bfd *abfd) | |
1661 | { | |
1662 | struct target_ops **t; | |
1663 | ||
1664 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
1665 | { | |
1666 | struct section_table *src, *dest; | |
1667 | ||
1668 | dest = (*t)->to_sections; | |
1669 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
1670 | if (src->bfd != abfd) | |
1671 | { | |
1672 | /* Keep this section. */ | |
1673 | if (dest < src) *dest = *src; | |
1674 | dest++; | |
1675 | } | |
1676 | ||
1677 | /* If we've dropped any sections, resize the section table. */ | |
1678 | if (dest < src) | |
1679 | target_resize_to_sections (*t, dest - src); | |
1680 | } | |
1681 | } | |
1682 | ||
1683 | ||
1684 | ||
1685 | ||
7a292a7a SS |
1686 | /* Find a single runnable target in the stack and return it. If for |
1687 | some reason there is more than one, return NULL. */ | |
1688 | ||
1689 | struct target_ops * | |
fba45db2 | 1690 | find_run_target (void) |
7a292a7a SS |
1691 | { |
1692 | struct target_ops **t; | |
1693 | struct target_ops *runable = NULL; | |
1694 | int count; | |
c5aa993b | 1695 | |
7a292a7a | 1696 | count = 0; |
c5aa993b | 1697 | |
7a292a7a SS |
1698 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
1699 | { | |
c5aa993b | 1700 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
1701 | { |
1702 | runable = *t; | |
1703 | ++count; | |
1704 | } | |
1705 | } | |
c5aa993b | 1706 | |
7a292a7a SS |
1707 | return (count == 1 ? runable : NULL); |
1708 | } | |
1709 | ||
ed9a39eb JM |
1710 | /* Find a single core_stratum target in the list of targets and return it. |
1711 | If for some reason there is more than one, return NULL. */ | |
1712 | ||
c906108c | 1713 | struct target_ops * |
fba45db2 | 1714 | find_core_target (void) |
c906108c SS |
1715 | { |
1716 | struct target_ops **t; | |
1717 | struct target_ops *runable = NULL; | |
1718 | int count; | |
c5aa993b | 1719 | |
c906108c | 1720 | count = 0; |
c5aa993b | 1721 | |
c906108c SS |
1722 | for (t = target_structs; t < target_structs + target_struct_size; |
1723 | ++t) | |
1724 | { | |
1725 | if ((*t)->to_stratum == core_stratum) | |
1726 | { | |
1727 | runable = *t; | |
1728 | ++count; | |
1729 | } | |
1730 | } | |
c5aa993b JM |
1731 | |
1732 | return (count == 1 ? runable : NULL); | |
c906108c | 1733 | } |
ed9a39eb JM |
1734 | |
1735 | /* | |
1736 | * Find the next target down the stack from the specified target. | |
1737 | */ | |
1738 | ||
1739 | struct target_ops * | |
fba45db2 | 1740 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 1741 | { |
258b763a | 1742 | return t->beneath; |
ed9a39eb JM |
1743 | } |
1744 | ||
c906108c SS |
1745 | \f |
1746 | /* The inferior process has died. Long live the inferior! */ | |
1747 | ||
1748 | void | |
fba45db2 | 1749 | generic_mourn_inferior (void) |
c906108c SS |
1750 | { |
1751 | extern int show_breakpoint_hit_counts; | |
1752 | ||
39f77062 | 1753 | inferior_ptid = null_ptid; |
c906108c SS |
1754 | attach_flag = 0; |
1755 | breakpoint_init_inferior (inf_exited); | |
1756 | registers_changed (); | |
1757 | ||
c906108c SS |
1758 | reopen_exec_file (); |
1759 | reinit_frame_cache (); | |
1760 | ||
1761 | /* It is confusing to the user for ignore counts to stick around | |
1762 | from previous runs of the inferior. So clear them. */ | |
1763 | /* However, it is more confusing for the ignore counts to disappear when | |
1764 | using hit counts. So don't clear them if we're counting hits. */ | |
1765 | if (!show_breakpoint_hit_counts) | |
1766 | breakpoint_clear_ignore_counts (); | |
c5b739b5 | 1767 | |
9a4105ab AC |
1768 | if (deprecated_detach_hook) |
1769 | deprecated_detach_hook (); | |
c906108c SS |
1770 | } |
1771 | \f | |
c906108c SS |
1772 | /* Helper function for child_wait and the Lynx derivatives of child_wait. |
1773 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our | |
1774 | translation of that in OURSTATUS. */ | |
1775 | void | |
fba45db2 | 1776 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c SS |
1777 | { |
1778 | #ifdef CHILD_SPECIAL_WAITSTATUS | |
1779 | /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS | |
1780 | if it wants to deal with hoststatus. */ | |
1781 | if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus)) | |
1782 | return; | |
1783 | #endif | |
1784 | ||
1785 | if (WIFEXITED (hoststatus)) | |
1786 | { | |
1787 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
1788 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
1789 | } | |
1790 | else if (!WIFSTOPPED (hoststatus)) | |
1791 | { | |
1792 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
1793 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
1794 | } | |
1795 | else | |
1796 | { | |
1797 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
1798 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
1799 | } | |
1800 | } | |
1801 | \f | |
c906108c | 1802 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 1803 | int (*target_activity_function) (void); |
c906108c SS |
1804 | int target_activity_fd; |
1805 | \f | |
fd0a2a6f MK |
1806 | /* Convert a normal process ID to a string. Returns the string in a |
1807 | static buffer. */ | |
c906108c SS |
1808 | |
1809 | char * | |
39f77062 | 1810 | normal_pid_to_str (ptid_t ptid) |
c906108c | 1811 | { |
fd0a2a6f MK |
1812 | static char buf[32]; |
1813 | int size; | |
c906108c | 1814 | |
fd0a2a6f MK |
1815 | size = snprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
1816 | gdb_assert (size < sizeof buf); | |
c906108c SS |
1817 | return buf; |
1818 | } | |
1819 | ||
be4d1333 | 1820 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
1821 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
1822 | { | |
8a3fe4f8 | 1823 | error (_("No target.")); |
be4d1333 MS |
1824 | return 0; |
1825 | } | |
1826 | ||
1827 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
1828 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
1829 | { | |
8a3fe4f8 | 1830 | error (_("No target.")); |
be4d1333 MS |
1831 | return NULL; |
1832 | } | |
1833 | ||
c906108c SS |
1834 | /* Set up the handful of non-empty slots needed by the dummy target |
1835 | vector. */ | |
1836 | ||
1837 | static void | |
fba45db2 | 1838 | init_dummy_target (void) |
c906108c SS |
1839 | { |
1840 | dummy_target.to_shortname = "None"; | |
1841 | dummy_target.to_longname = "None"; | |
1842 | dummy_target.to_doc = ""; | |
1843 | dummy_target.to_attach = find_default_attach; | |
c906108c | 1844 | dummy_target.to_create_inferior = find_default_create_inferior; |
ed9a39eb | 1845 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 1846 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
1847 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
1848 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 1849 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
1850 | dummy_target.to_magic = OPS_MAGIC; |
1851 | } | |
c906108c | 1852 | \f |
c906108c | 1853 | static void |
fba45db2 | 1854 | debug_to_open (char *args, int from_tty) |
c906108c SS |
1855 | { |
1856 | debug_target.to_open (args, from_tty); | |
1857 | ||
96baa820 | 1858 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
1859 | } |
1860 | ||
1861 | static void | |
fba45db2 | 1862 | debug_to_close (int quitting) |
c906108c | 1863 | { |
f1c07ab0 | 1864 | target_close (&debug_target, quitting); |
96baa820 | 1865 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
1866 | } |
1867 | ||
f1c07ab0 AC |
1868 | void |
1869 | target_close (struct target_ops *targ, int quitting) | |
1870 | { | |
1871 | if (targ->to_xclose != NULL) | |
1872 | targ->to_xclose (targ, quitting); | |
1873 | else if (targ->to_close != NULL) | |
1874 | targ->to_close (quitting); | |
1875 | } | |
1876 | ||
c906108c | 1877 | static void |
fba45db2 | 1878 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
1879 | { |
1880 | debug_target.to_attach (args, from_tty); | |
1881 | ||
96baa820 | 1882 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
1883 | } |
1884 | ||
1885 | ||
1886 | static void | |
fba45db2 | 1887 | debug_to_post_attach (int pid) |
c906108c SS |
1888 | { |
1889 | debug_target.to_post_attach (pid); | |
1890 | ||
96baa820 | 1891 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
1892 | } |
1893 | ||
c906108c | 1894 | static void |
fba45db2 | 1895 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
1896 | { |
1897 | debug_target.to_detach (args, from_tty); | |
1898 | ||
96baa820 | 1899 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
1900 | } |
1901 | ||
6ad8ae5c DJ |
1902 | static void |
1903 | debug_to_disconnect (char *args, int from_tty) | |
1904 | { | |
1905 | debug_target.to_disconnect (args, from_tty); | |
1906 | ||
1907 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1908 | args, from_tty); | |
1909 | } | |
1910 | ||
c906108c | 1911 | static void |
39f77062 | 1912 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 1913 | { |
39f77062 | 1914 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 1915 | |
39f77062 | 1916 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
1917 | step ? "step" : "continue", |
1918 | target_signal_to_name (siggnal)); | |
1919 | } | |
1920 | ||
39f77062 KB |
1921 | static ptid_t |
1922 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 1923 | { |
39f77062 | 1924 | ptid_t retval; |
c906108c | 1925 | |
39f77062 | 1926 | retval = debug_target.to_wait (ptid, status); |
c906108c | 1927 | |
96baa820 | 1928 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
1929 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
1930 | PIDGET (retval)); | |
96baa820 | 1931 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
1932 | switch (status->kind) |
1933 | { | |
1934 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 1935 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
1936 | status->value.integer); |
1937 | break; | |
1938 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 1939 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
1940 | target_signal_to_name (status->value.sig)); |
1941 | break; | |
1942 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 1943 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
1944 | target_signal_to_name (status->value.sig)); |
1945 | break; | |
1946 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 1947 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
1948 | break; |
1949 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 1950 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
1951 | break; |
1952 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 1953 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
1954 | break; |
1955 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 1956 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
1957 | break; |
1958 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 1959 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
1960 | break; |
1961 | default: | |
96baa820 | 1962 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
1963 | break; |
1964 | } | |
1965 | ||
1966 | return retval; | |
1967 | } | |
1968 | ||
bf0c5130 AC |
1969 | static void |
1970 | debug_print_register (const char * func, int regno) | |
1971 | { | |
1972 | fprintf_unfiltered (gdb_stdlog, "%s ", func); | |
1973 | if (regno >= 0 && regno < NUM_REGS + NUM_PSEUDO_REGS | |
1974 | && REGISTER_NAME (regno) != NULL && REGISTER_NAME (regno)[0] != '\0') | |
1975 | fprintf_unfiltered (gdb_stdlog, "(%s)", REGISTER_NAME (regno)); | |
1976 | else | |
1977 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
1978 | if (regno >= 0) | |
1979 | { | |
1980 | int i; | |
d9d9c31f | 1981 | unsigned char buf[MAX_REGISTER_SIZE]; |
4caf0990 | 1982 | deprecated_read_register_gen (regno, buf); |
bf0c5130 | 1983 | fprintf_unfiltered (gdb_stdlog, " = "); |
3acba339 | 1984 | for (i = 0; i < register_size (current_gdbarch, regno); i++) |
bf0c5130 AC |
1985 | { |
1986 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
1987 | } | |
3acba339 | 1988 | if (register_size (current_gdbarch, regno) <= sizeof (LONGEST)) |
bf0c5130 AC |
1989 | { |
1990 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", | |
1991 | paddr_nz (read_register (regno)), | |
1992 | paddr_d (read_register (regno))); | |
1993 | } | |
1994 | } | |
1995 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1996 | } | |
1997 | ||
c906108c | 1998 | static void |
fba45db2 | 1999 | debug_to_fetch_registers (int regno) |
c906108c SS |
2000 | { |
2001 | debug_target.to_fetch_registers (regno); | |
bf0c5130 | 2002 | debug_print_register ("target_fetch_registers", regno); |
c906108c SS |
2003 | } |
2004 | ||
2005 | static void | |
fba45db2 | 2006 | debug_to_store_registers (int regno) |
c906108c SS |
2007 | { |
2008 | debug_target.to_store_registers (regno); | |
bf0c5130 AC |
2009 | debug_print_register ("target_store_registers", regno); |
2010 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c906108c SS |
2011 | } |
2012 | ||
2013 | static void | |
fba45db2 | 2014 | debug_to_prepare_to_store (void) |
c906108c SS |
2015 | { |
2016 | debug_target.to_prepare_to_store (); | |
2017 | ||
96baa820 | 2018 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
2019 | } |
2020 | ||
2021 | static int | |
c8e73a31 AC |
2022 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, |
2023 | int write, struct mem_attrib *attrib, | |
2024 | struct target_ops *target) | |
c906108c SS |
2025 | { |
2026 | int retval; | |
2027 | ||
c8e73a31 AC |
2028 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
2029 | attrib, target); | |
c906108c | 2030 | |
96baa820 | 2031 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2032 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 2033 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
2034 | len, write ? "write" : "read", retval); |
2035 | ||
c906108c SS |
2036 | if (retval > 0) |
2037 | { | |
2038 | int i; | |
2039 | ||
96baa820 | 2040 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
2041 | for (i = 0; i < retval; i++) |
2042 | { | |
2043 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
333dabeb DJ |
2044 | { |
2045 | if (targetdebug < 2 && i > 0) | |
2046 | { | |
2047 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
2048 | break; | |
2049 | } | |
2050 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2051 | } | |
2052 | ||
96baa820 | 2053 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
2054 | } |
2055 | } | |
2056 | ||
96baa820 | 2057 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
2058 | |
2059 | return retval; | |
2060 | } | |
2061 | ||
2062 | static void | |
fba45db2 | 2063 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
2064 | { |
2065 | debug_target.to_files_info (target); | |
2066 | ||
96baa820 | 2067 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
2068 | } |
2069 | ||
2070 | static int | |
fba45db2 | 2071 | debug_to_insert_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
2072 | { |
2073 | int retval; | |
2074 | ||
2075 | retval = debug_target.to_insert_breakpoint (addr, save); | |
2076 | ||
96baa820 | 2077 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
2078 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
2079 | (unsigned long) addr, | |
2080 | (unsigned long) retval); | |
c906108c SS |
2081 | return retval; |
2082 | } | |
2083 | ||
2084 | static int | |
fba45db2 | 2085 | debug_to_remove_breakpoint (CORE_ADDR addr, char *save) |
c906108c SS |
2086 | { |
2087 | int retval; | |
2088 | ||
2089 | retval = debug_target.to_remove_breakpoint (addr, save); | |
2090 | ||
96baa820 | 2091 | fprintf_unfiltered (gdb_stdlog, |
104c1213 JM |
2092 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
2093 | (unsigned long) addr, | |
2094 | (unsigned long) retval); | |
c906108c SS |
2095 | return retval; |
2096 | } | |
2097 | ||
ccaa32c7 GS |
2098 | static int |
2099 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2100 | { | |
2101 | int retval; | |
2102 | ||
2103 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2104 | ||
2105 | fprintf_unfiltered (gdb_stdlog, | |
2106 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2107 | (unsigned long) type, | |
2108 | (unsigned long) cnt, | |
2109 | (unsigned long) from_tty, | |
2110 | (unsigned long) retval); | |
2111 | return retval; | |
2112 | } | |
2113 | ||
2114 | static int | |
2115 | debug_to_region_size_ok_for_hw_watchpoint (int byte_count) | |
2116 | { | |
2117 | CORE_ADDR retval; | |
2118 | ||
2119 | retval = debug_target.to_region_size_ok_for_hw_watchpoint (byte_count); | |
2120 | ||
2121 | fprintf_unfiltered (gdb_stdlog, | |
2122 | "TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT (%ld) = 0x%lx\n", | |
2123 | (unsigned long) byte_count, | |
2124 | (unsigned long) retval); | |
2125 | return retval; | |
2126 | } | |
2127 | ||
2128 | static int | |
2129 | debug_to_stopped_by_watchpoint (void) | |
2130 | { | |
2131 | int retval; | |
2132 | ||
2133 | retval = debug_target.to_stopped_by_watchpoint (); | |
2134 | ||
2135 | fprintf_unfiltered (gdb_stdlog, | |
2136 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
2137 | (unsigned long) retval); | |
2138 | return retval; | |
2139 | } | |
2140 | ||
4aa7a7f5 JJ |
2141 | static int |
2142 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 2143 | { |
4aa7a7f5 | 2144 | int retval; |
ccaa32c7 | 2145 | |
4aa7a7f5 | 2146 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
2147 | |
2148 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
2149 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
2150 | (unsigned long)*addr, | |
2151 | (unsigned long)retval); | |
ccaa32c7 GS |
2152 | return retval; |
2153 | } | |
2154 | ||
2155 | static int | |
2156 | debug_to_insert_hw_breakpoint (CORE_ADDR addr, char *save) | |
2157 | { | |
2158 | int retval; | |
2159 | ||
2160 | retval = debug_target.to_insert_hw_breakpoint (addr, save); | |
2161 | ||
2162 | fprintf_unfiltered (gdb_stdlog, | |
2163 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
2164 | (unsigned long) addr, | |
2165 | (unsigned long) retval); | |
2166 | return retval; | |
2167 | } | |
2168 | ||
2169 | static int | |
2170 | debug_to_remove_hw_breakpoint (CORE_ADDR addr, char *save) | |
2171 | { | |
2172 | int retval; | |
2173 | ||
2174 | retval = debug_target.to_remove_hw_breakpoint (addr, save); | |
2175 | ||
2176 | fprintf_unfiltered (gdb_stdlog, | |
2177 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
2178 | (unsigned long) addr, | |
2179 | (unsigned long) retval); | |
2180 | return retval; | |
2181 | } | |
2182 | ||
2183 | static int | |
2184 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2185 | { | |
2186 | int retval; | |
2187 | ||
2188 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2189 | ||
2190 | fprintf_unfiltered (gdb_stdlog, | |
2191 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2192 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2193 | return retval; | |
2194 | } | |
2195 | ||
2196 | static int | |
2197 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2198 | { | |
2199 | int retval; | |
2200 | ||
2201 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2202 | ||
2203 | fprintf_unfiltered (gdb_stdlog, | |
2204 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2205 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2206 | return retval; | |
2207 | } | |
2208 | ||
c906108c | 2209 | static void |
fba45db2 | 2210 | debug_to_terminal_init (void) |
c906108c SS |
2211 | { |
2212 | debug_target.to_terminal_init (); | |
2213 | ||
96baa820 | 2214 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2215 | } |
2216 | ||
2217 | static void | |
fba45db2 | 2218 | debug_to_terminal_inferior (void) |
c906108c SS |
2219 | { |
2220 | debug_target.to_terminal_inferior (); | |
2221 | ||
96baa820 | 2222 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2223 | } |
2224 | ||
2225 | static void | |
fba45db2 | 2226 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2227 | { |
2228 | debug_target.to_terminal_ours_for_output (); | |
2229 | ||
96baa820 | 2230 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2231 | } |
2232 | ||
2233 | static void | |
fba45db2 | 2234 | debug_to_terminal_ours (void) |
c906108c SS |
2235 | { |
2236 | debug_target.to_terminal_ours (); | |
2237 | ||
96baa820 | 2238 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2239 | } |
2240 | ||
a790ad35 SC |
2241 | static void |
2242 | debug_to_terminal_save_ours (void) | |
2243 | { | |
2244 | debug_target.to_terminal_save_ours (); | |
2245 | ||
2246 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2247 | } | |
2248 | ||
c906108c | 2249 | static void |
fba45db2 | 2250 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2251 | { |
2252 | debug_target.to_terminal_info (arg, from_tty); | |
2253 | ||
96baa820 | 2254 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2255 | from_tty); |
2256 | } | |
2257 | ||
2258 | static void | |
fba45db2 | 2259 | debug_to_kill (void) |
c906108c SS |
2260 | { |
2261 | debug_target.to_kill (); | |
2262 | ||
96baa820 | 2263 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2264 | } |
2265 | ||
2266 | static void | |
fba45db2 | 2267 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2268 | { |
2269 | debug_target.to_load (args, from_tty); | |
2270 | ||
96baa820 | 2271 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2272 | } |
2273 | ||
2274 | static int | |
fba45db2 | 2275 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2276 | { |
2277 | int retval; | |
2278 | ||
2279 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2280 | ||
96baa820 | 2281 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2282 | |
2283 | return retval; | |
2284 | } | |
2285 | ||
2286 | static void | |
c27cda74 AC |
2287 | debug_to_create_inferior (char *exec_file, char *args, char **env, |
2288 | int from_tty) | |
c906108c | 2289 | { |
c27cda74 | 2290 | debug_target.to_create_inferior (exec_file, args, env, from_tty); |
c906108c | 2291 | |
c27cda74 AC |
2292 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx, %d)\n", |
2293 | exec_file, args, from_tty); | |
c906108c SS |
2294 | } |
2295 | ||
2296 | static void | |
39f77062 | 2297 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2298 | { |
39f77062 | 2299 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2300 | |
96baa820 | 2301 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2302 | PIDGET (ptid)); |
c906108c SS |
2303 | } |
2304 | ||
2305 | static void | |
fba45db2 | 2306 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2307 | { |
2308 | debug_target.to_acknowledge_created_inferior (pid); | |
2309 | ||
96baa820 | 2310 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2311 | pid); |
2312 | } | |
2313 | ||
fa113d1a | 2314 | static void |
fba45db2 | 2315 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2316 | { |
fa113d1a | 2317 | debug_target.to_insert_fork_catchpoint (pid); |
c906108c | 2318 | |
fa113d1a AC |
2319 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n", |
2320 | pid); | |
c906108c SS |
2321 | } |
2322 | ||
2323 | static int | |
fba45db2 | 2324 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2325 | { |
c5aa993b | 2326 | int retval; |
c906108c SS |
2327 | |
2328 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2329 | ||
96baa820 | 2330 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2331 | pid, retval); |
c906108c SS |
2332 | |
2333 | return retval; | |
2334 | } | |
2335 | ||
fa113d1a | 2336 | static void |
fba45db2 | 2337 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2338 | { |
fa113d1a | 2339 | debug_target.to_insert_vfork_catchpoint (pid); |
c906108c | 2340 | |
fa113d1a AC |
2341 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n", |
2342 | pid); | |
c906108c SS |
2343 | } |
2344 | ||
2345 | static int | |
fba45db2 | 2346 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2347 | { |
c5aa993b | 2348 | int retval; |
c906108c SS |
2349 | |
2350 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2351 | ||
96baa820 | 2352 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2353 | pid, retval); |
c906108c SS |
2354 | |
2355 | return retval; | |
2356 | } | |
2357 | ||
6604731b DJ |
2358 | static int |
2359 | debug_to_follow_fork (int follow_child) | |
c906108c | 2360 | { |
6604731b | 2361 | int retval = debug_target.to_follow_fork (follow_child); |
c906108c | 2362 | |
6604731b DJ |
2363 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", |
2364 | follow_child, retval); | |
2365 | ||
2366 | return retval; | |
c906108c SS |
2367 | } |
2368 | ||
fa113d1a | 2369 | static void |
fba45db2 | 2370 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2371 | { |
fa113d1a | 2372 | debug_target.to_insert_exec_catchpoint (pid); |
c906108c | 2373 | |
fa113d1a AC |
2374 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n", |
2375 | pid); | |
c906108c SS |
2376 | } |
2377 | ||
2378 | static int | |
fba45db2 | 2379 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2380 | { |
c5aa993b | 2381 | int retval; |
c906108c SS |
2382 | |
2383 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2384 | ||
96baa820 | 2385 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2386 | pid, retval); |
c906108c SS |
2387 | |
2388 | return retval; | |
2389 | } | |
2390 | ||
c906108c | 2391 | static int |
fba45db2 | 2392 | debug_to_reported_exec_events_per_exec_call (void) |
c906108c | 2393 | { |
c5aa993b | 2394 | int reported_exec_events; |
c906108c SS |
2395 | |
2396 | reported_exec_events = debug_target.to_reported_exec_events_per_exec_call (); | |
2397 | ||
96baa820 | 2398 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2399 | "target_reported_exec_events_per_exec_call () = %d\n", |
c5aa993b | 2400 | reported_exec_events); |
c906108c SS |
2401 | |
2402 | return reported_exec_events; | |
2403 | } | |
2404 | ||
c906108c | 2405 | static int |
fba45db2 | 2406 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2407 | { |
c5aa993b | 2408 | int has_exited; |
c906108c SS |
2409 | |
2410 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2411 | ||
96baa820 | 2412 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2413 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2414 | |
2415 | return has_exited; | |
2416 | } | |
2417 | ||
2418 | static void | |
fba45db2 | 2419 | debug_to_mourn_inferior (void) |
c906108c SS |
2420 | { |
2421 | debug_target.to_mourn_inferior (); | |
2422 | ||
96baa820 | 2423 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2424 | } |
2425 | ||
2426 | static int | |
fba45db2 | 2427 | debug_to_can_run (void) |
c906108c SS |
2428 | { |
2429 | int retval; | |
2430 | ||
2431 | retval = debug_target.to_can_run (); | |
2432 | ||
96baa820 | 2433 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
2434 | |
2435 | return retval; | |
2436 | } | |
2437 | ||
2438 | static void | |
39f77062 | 2439 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 2440 | { |
39f77062 | 2441 | debug_target.to_notice_signals (ptid); |
c906108c | 2442 | |
39f77062 KB |
2443 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
2444 | PIDGET (ptid)); | |
c906108c SS |
2445 | } |
2446 | ||
2447 | static int | |
39f77062 | 2448 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
2449 | { |
2450 | int retval; | |
2451 | ||
39f77062 | 2452 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 2453 | |
96baa820 | 2454 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 2455 | PIDGET (ptid), retval); |
c906108c SS |
2456 | |
2457 | return retval; | |
2458 | } | |
2459 | ||
0d06e24b | 2460 | static void |
fba45db2 | 2461 | debug_to_find_new_threads (void) |
0d06e24b JM |
2462 | { |
2463 | debug_target.to_find_new_threads (); | |
2464 | ||
2465 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
2466 | } | |
2467 | ||
c906108c | 2468 | static void |
fba45db2 | 2469 | debug_to_stop (void) |
c906108c SS |
2470 | { |
2471 | debug_target.to_stop (); | |
2472 | ||
96baa820 | 2473 | fprintf_unfiltered (gdb_stdlog, "target_stop ()\n"); |
c906108c SS |
2474 | } |
2475 | ||
96baa820 JM |
2476 | static void |
2477 | debug_to_rcmd (char *command, | |
d9fcf2fb | 2478 | struct ui_file *outbuf) |
96baa820 JM |
2479 | { |
2480 | debug_target.to_rcmd (command, outbuf); | |
2481 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
2482 | } | |
2483 | ||
c906108c | 2484 | static struct symtab_and_line * |
fba45db2 | 2485 | debug_to_enable_exception_callback (enum exception_event_kind kind, int enable) |
c906108c | 2486 | { |
7a292a7a SS |
2487 | struct symtab_and_line *result; |
2488 | result = debug_target.to_enable_exception_callback (kind, enable); | |
96baa820 | 2489 | fprintf_unfiltered (gdb_stdlog, |
c906108c SS |
2490 | "target get_exception_callback_sal (%d, %d)\n", |
2491 | kind, enable); | |
7a292a7a | 2492 | return result; |
c906108c SS |
2493 | } |
2494 | ||
2495 | static struct exception_event_record * | |
fba45db2 | 2496 | debug_to_get_current_exception_event (void) |
c906108c | 2497 | { |
7a292a7a | 2498 | struct exception_event_record *result; |
c5aa993b | 2499 | result = debug_target.to_get_current_exception_event (); |
96baa820 | 2500 | fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n"); |
7a292a7a | 2501 | return result; |
c906108c SS |
2502 | } |
2503 | ||
2504 | static char * | |
fba45db2 | 2505 | debug_to_pid_to_exec_file (int pid) |
c906108c | 2506 | { |
c5aa993b | 2507 | char *exec_file; |
c906108c SS |
2508 | |
2509 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
2510 | ||
96baa820 | 2511 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 2512 | pid, exec_file); |
c906108c SS |
2513 | |
2514 | return exec_file; | |
2515 | } | |
2516 | ||
c906108c | 2517 | static void |
fba45db2 | 2518 | setup_target_debug (void) |
c906108c SS |
2519 | { |
2520 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
2521 | ||
2522 | current_target.to_open = debug_to_open; | |
2523 | current_target.to_close = debug_to_close; | |
2524 | current_target.to_attach = debug_to_attach; | |
2525 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 2526 | current_target.to_detach = debug_to_detach; |
6ad8ae5c | 2527 | current_target.to_disconnect = debug_to_disconnect; |
c906108c SS |
2528 | current_target.to_resume = debug_to_resume; |
2529 | current_target.to_wait = debug_to_wait; | |
c906108c SS |
2530 | current_target.to_fetch_registers = debug_to_fetch_registers; |
2531 | current_target.to_store_registers = debug_to_store_registers; | |
2532 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
c8e73a31 | 2533 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
2534 | current_target.to_files_info = debug_to_files_info; |
2535 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
2536 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
2537 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
2538 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
2539 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
2540 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
2541 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
2542 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
2543 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
2544 | current_target.to_region_size_ok_for_hw_watchpoint = debug_to_region_size_ok_for_hw_watchpoint; | |
c906108c SS |
2545 | current_target.to_terminal_init = debug_to_terminal_init; |
2546 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
2547 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
2548 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 2549 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
2550 | current_target.to_terminal_info = debug_to_terminal_info; |
2551 | current_target.to_kill = debug_to_kill; | |
2552 | current_target.to_load = debug_to_load; | |
2553 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
2554 | current_target.to_create_inferior = debug_to_create_inferior; | |
2555 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
2556 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
2557 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
2558 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
2559 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
2560 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
6604731b | 2561 | current_target.to_follow_fork = debug_to_follow_fork; |
c906108c SS |
2562 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
2563 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 2564 | current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call; |
c906108c SS |
2565 | current_target.to_has_exited = debug_to_has_exited; |
2566 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
2567 | current_target.to_can_run = debug_to_can_run; | |
2568 | current_target.to_notice_signals = debug_to_notice_signals; | |
2569 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 2570 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 2571 | current_target.to_stop = debug_to_stop; |
96baa820 | 2572 | current_target.to_rcmd = debug_to_rcmd; |
c906108c SS |
2573 | current_target.to_enable_exception_callback = debug_to_enable_exception_callback; |
2574 | current_target.to_get_current_exception_event = debug_to_get_current_exception_event; | |
2575 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; | |
c906108c SS |
2576 | |
2577 | } | |
c906108c | 2578 | \f |
c5aa993b JM |
2579 | |
2580 | static char targ_desc[] = | |
2581 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
2582 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
2583 | core-file, and process, if any), as well as the symbol file name."; | |
2584 | ||
96baa820 JM |
2585 | static void |
2586 | do_monitor_command (char *cmd, | |
2587 | int from_tty) | |
2588 | { | |
2b5fe715 AC |
2589 | if ((current_target.to_rcmd |
2590 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 2591 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
2592 | && (debug_target.to_rcmd |
2593 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 2594 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
2595 | target_rcmd (cmd, gdb_stdtarg); |
2596 | } | |
2597 | ||
c906108c | 2598 | void |
fba45db2 | 2599 | initialize_targets (void) |
c906108c SS |
2600 | { |
2601 | init_dummy_target (); | |
2602 | push_target (&dummy_target); | |
2603 | ||
2604 | add_info ("target", target_info, targ_desc); | |
2605 | add_info ("files", target_info, targ_desc); | |
2606 | ||
85c07804 AC |
2607 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
2608 | Set target debugging."), _("\ | |
2609 | Show target debugging."), _("\ | |
333dabeb DJ |
2610 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
2611 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
2612 | command."), |
2613 | NULL, | |
920d2a44 | 2614 | show_targetdebug, |
85c07804 | 2615 | &setdebuglist, &showdebuglist); |
3a11626d | 2616 | |
e707bbc2 | 2617 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
2618 | &trust_readonly, _("\ |
2619 | Set mode for reading from readonly sections."), _("\ | |
2620 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
2621 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
2622 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 2623 | result in significant performance improvement for remote targets."), |
2c5b56ce | 2624 | NULL, |
920d2a44 | 2625 | show_trust_readonly, |
e707bbc2 | 2626 | &setlist, &showlist); |
96baa820 JM |
2627 | |
2628 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 2629 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 2630 | |
8add0441 | 2631 | target_dcache = dcache_init (); |
c906108c | 2632 | } |