Commit | Line | Data |
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c906108c | 1 | /* Select target systems and architectures at runtime for GDB. |
7998dfc3 | 2 | |
6aba47ca | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
9b254dd1 | 4 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
f6519ebc | 5 | Free Software Foundation, Inc. |
7998dfc3 | 6 | |
c906108c SS |
7 | Contributed by Cygnus Support. |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include <errno.h> | |
c906108c SS |
26 | #include "gdb_string.h" |
27 | #include "target.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "symtab.h" | |
30 | #include "inferior.h" | |
31 | #include "bfd.h" | |
32 | #include "symfile.h" | |
33 | #include "objfiles.h" | |
03f2053f | 34 | #include "gdb_wait.h" |
4930751a | 35 | #include "dcache.h" |
c906108c | 36 | #include <signal.h> |
4e052eda | 37 | #include "regcache.h" |
0088c768 | 38 | #include "gdb_assert.h" |
b6591e8b | 39 | #include "gdbcore.h" |
9e35dae4 | 40 | #include "exceptions.h" |
424163ea | 41 | #include "target-descriptions.h" |
8defab1a | 42 | #include "gdb_stdint.h" |
c906108c | 43 | |
a14ed312 | 44 | static void target_info (char *, int); |
c906108c | 45 | |
a14ed312 | 46 | static void maybe_kill_then_attach (char *, int); |
c906108c | 47 | |
a14ed312 | 48 | static void kill_or_be_killed (int); |
c906108c | 49 | |
a14ed312 | 50 | static void default_terminal_info (char *, int); |
c906108c | 51 | |
5009afc5 AS |
52 | static int default_watchpoint_addr_within_range (struct target_ops *, |
53 | CORE_ADDR, CORE_ADDR, int); | |
54 | ||
e0d24f8d WZ |
55 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
56 | ||
a14ed312 | 57 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 58 | |
4ecb6f27 | 59 | static void tcomplain (void) ATTR_NORETURN; |
c906108c | 60 | |
a14ed312 | 61 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 62 | |
a14ed312 | 63 | static int return_zero (void); |
c906108c | 64 | |
a14ed312 | 65 | static int return_one (void); |
c906108c | 66 | |
ccaa32c7 GS |
67 | static int return_minus_one (void); |
68 | ||
a14ed312 | 69 | void target_ignore (void); |
c906108c | 70 | |
a14ed312 | 71 | static void target_command (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static struct target_ops *find_default_run_target (char *); |
c906108c | 74 | |
a14ed312 | 75 | static void nosupport_runtime (void); |
392a587b | 76 | |
4b8a223f | 77 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 78 | enum target_object object, |
1b0ba102 AC |
79 | const char *annex, gdb_byte *readbuf, |
80 | const gdb_byte *writebuf, | |
8aa91c1e | 81 | ULONGEST offset, LONGEST len); |
0088c768 | 82 | |
cf7a04e8 DJ |
83 | static LONGEST current_xfer_partial (struct target_ops *ops, |
84 | enum target_object object, | |
85 | const char *annex, gdb_byte *readbuf, | |
86 | const gdb_byte *writebuf, | |
87 | ULONGEST offset, LONGEST len); | |
c906108c | 88 | |
cf7a04e8 DJ |
89 | static LONGEST target_xfer_partial (struct target_ops *ops, |
90 | enum target_object object, | |
91 | const char *annex, | |
92 | void *readbuf, const void *writebuf, | |
93 | ULONGEST offset, LONGEST len); | |
c906108c | 94 | |
a14ed312 | 95 | static void init_dummy_target (void); |
c906108c | 96 | |
aa869812 AC |
97 | static struct target_ops debug_target; |
98 | ||
a14ed312 | 99 | static void debug_to_open (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void debug_to_close (int); |
c906108c | 102 | |
a14ed312 | 103 | static void debug_to_attach (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void debug_to_detach (char *, int); |
c906108c | 106 | |
39f77062 | 107 | static void debug_to_resume (ptid_t, int, enum target_signal); |
c906108c | 108 | |
39f77062 | 109 | static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *); |
c906108c | 110 | |
56be3814 | 111 | static void debug_to_fetch_registers (struct regcache *, int); |
c906108c | 112 | |
56be3814 | 113 | static void debug_to_store_registers (struct regcache *, int); |
c906108c | 114 | |
316f2060 | 115 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 116 | |
a14ed312 | 117 | static void debug_to_files_info (struct target_ops *); |
c906108c | 118 | |
8181d85f | 119 | static int debug_to_insert_breakpoint (struct bp_target_info *); |
c906108c | 120 | |
8181d85f | 121 | static int debug_to_remove_breakpoint (struct bp_target_info *); |
c906108c | 122 | |
ccaa32c7 GS |
123 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
124 | ||
8181d85f | 125 | static int debug_to_insert_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 | 126 | |
8181d85f | 127 | static int debug_to_remove_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 GS |
128 | |
129 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
130 | ||
131 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
132 | ||
133 | static int debug_to_stopped_by_watchpoint (void); | |
134 | ||
4aa7a7f5 | 135 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 136 | |
5009afc5 AS |
137 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
138 | CORE_ADDR, CORE_ADDR, int); | |
139 | ||
e0d24f8d WZ |
140 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
141 | ||
a14ed312 | 142 | static void debug_to_terminal_init (void); |
c906108c | 143 | |
a14ed312 | 144 | static void debug_to_terminal_inferior (void); |
c906108c | 145 | |
a14ed312 | 146 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 147 | |
a790ad35 SC |
148 | static void debug_to_terminal_save_ours (void); |
149 | ||
a14ed312 | 150 | static void debug_to_terminal_ours (void); |
c906108c | 151 | |
a14ed312 | 152 | static void debug_to_terminal_info (char *, int); |
c906108c | 153 | |
a14ed312 | 154 | static void debug_to_kill (void); |
c906108c | 155 | |
a14ed312 | 156 | static void debug_to_load (char *, int); |
c906108c | 157 | |
a14ed312 | 158 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 159 | |
a14ed312 | 160 | static void debug_to_mourn_inferior (void); |
c906108c | 161 | |
a14ed312 | 162 | static int debug_to_can_run (void); |
c906108c | 163 | |
39f77062 | 164 | static void debug_to_notice_signals (ptid_t); |
c906108c | 165 | |
39f77062 | 166 | static int debug_to_thread_alive (ptid_t); |
c906108c | 167 | |
a14ed312 | 168 | static void debug_to_stop (void); |
c906108c | 169 | |
5ac10fd1 AC |
170 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
171 | wierd and mysterious ways. Putting the variable here lets those | |
172 | wierd and mysterious ways keep building while they are being | |
173 | converted to the inferior inheritance structure. */ | |
1df84f13 | 174 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 175 | |
c906108c | 176 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 177 | array; the current index into the array; the allocated size of the |
c906108c SS |
178 | array. */ |
179 | struct target_ops **target_structs; | |
180 | unsigned target_struct_size; | |
181 | unsigned target_struct_index; | |
182 | unsigned target_struct_allocsize; | |
183 | #define DEFAULT_ALLOCSIZE 10 | |
184 | ||
185 | /* The initial current target, so that there is always a semi-valid | |
186 | current target. */ | |
187 | ||
188 | static struct target_ops dummy_target; | |
189 | ||
190 | /* Top of target stack. */ | |
191 | ||
258b763a | 192 | static struct target_ops *target_stack; |
c906108c SS |
193 | |
194 | /* The target structure we are currently using to talk to a process | |
195 | or file or whatever "inferior" we have. */ | |
196 | ||
197 | struct target_ops current_target; | |
198 | ||
199 | /* Command list for target. */ | |
200 | ||
201 | static struct cmd_list_element *targetlist = NULL; | |
202 | ||
203 | /* Nonzero if we are debugging an attached outside process | |
204 | rather than an inferior. */ | |
205 | ||
206 | int attach_flag; | |
207 | ||
cf7a04e8 DJ |
208 | /* Nonzero if we should trust readonly sections from the |
209 | executable when reading memory. */ | |
210 | ||
211 | static int trust_readonly = 0; | |
212 | ||
8defab1a DJ |
213 | /* Nonzero if we should show true memory content including |
214 | memory breakpoint inserted by gdb. */ | |
215 | ||
216 | static int show_memory_breakpoints = 0; | |
217 | ||
c906108c SS |
218 | /* Non-zero if we want to see trace of target level stuff. */ |
219 | ||
220 | static int targetdebug = 0; | |
920d2a44 AC |
221 | static void |
222 | show_targetdebug (struct ui_file *file, int from_tty, | |
223 | struct cmd_list_element *c, const char *value) | |
224 | { | |
225 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
226 | } | |
c906108c | 227 | |
a14ed312 | 228 | static void setup_target_debug (void); |
c906108c | 229 | |
4930751a C |
230 | DCACHE *target_dcache; |
231 | ||
c906108c SS |
232 | /* The user just typed 'target' without the name of a target. */ |
233 | ||
c906108c | 234 | static void |
fba45db2 | 235 | target_command (char *arg, int from_tty) |
c906108c SS |
236 | { |
237 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
238 | gdb_stdout); | |
239 | } | |
240 | ||
241 | /* Add a possible target architecture to the list. */ | |
242 | ||
243 | void | |
fba45db2 | 244 | add_target (struct target_ops *t) |
c906108c | 245 | { |
0088c768 | 246 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
247 | if (t->to_xfer_partial == NULL) |
248 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 249 | |
c906108c SS |
250 | if (!target_structs) |
251 | { | |
252 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
253 | target_structs = (struct target_ops **) xmalloc | |
254 | (target_struct_allocsize * sizeof (*target_structs)); | |
255 | } | |
256 | if (target_struct_size >= target_struct_allocsize) | |
257 | { | |
258 | target_struct_allocsize *= 2; | |
259 | target_structs = (struct target_ops **) | |
c5aa993b JM |
260 | xrealloc ((char *) target_structs, |
261 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
262 | } |
263 | target_structs[target_struct_size++] = t; | |
c906108c SS |
264 | |
265 | if (targetlist == NULL) | |
1bedd215 AC |
266 | add_prefix_cmd ("target", class_run, target_command, _("\ |
267 | Connect to a target machine or process.\n\ | |
c906108c SS |
268 | The first argument is the type or protocol of the target machine.\n\ |
269 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
270 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 271 | `help target ' followed by the protocol name."), |
c906108c SS |
272 | &targetlist, "target ", 0, &cmdlist); |
273 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
274 | } | |
275 | ||
276 | /* Stub functions */ | |
277 | ||
278 | void | |
fba45db2 | 279 | target_ignore (void) |
c906108c SS |
280 | { |
281 | } | |
282 | ||
11cf8741 JM |
283 | void |
284 | target_load (char *arg, int from_tty) | |
285 | { | |
4930751a | 286 | dcache_invalidate (target_dcache); |
11cf8741 JM |
287 | (*current_target.to_load) (arg, from_tty); |
288 | } | |
289 | ||
c906108c | 290 | static int |
fba45db2 KB |
291 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
292 | struct target_ops *t) | |
c906108c | 293 | { |
c5aa993b JM |
294 | errno = EIO; /* Can't read/write this location */ |
295 | return 0; /* No bytes handled */ | |
c906108c SS |
296 | } |
297 | ||
298 | static void | |
fba45db2 | 299 | tcomplain (void) |
c906108c | 300 | { |
8a3fe4f8 | 301 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
302 | current_target.to_shortname); |
303 | } | |
304 | ||
305 | void | |
fba45db2 | 306 | noprocess (void) |
c906108c | 307 | { |
8a3fe4f8 | 308 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
309 | } |
310 | ||
c906108c | 311 | static int |
fba45db2 | 312 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 313 | { |
c5aa993b | 314 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
315 | } |
316 | ||
392a587b | 317 | static void |
fba45db2 | 318 | nosupport_runtime (void) |
c906108c | 319 | { |
39f77062 | 320 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
321 | noprocess (); |
322 | else | |
8a3fe4f8 | 323 | error (_("No run-time support for this")); |
c906108c SS |
324 | } |
325 | ||
326 | ||
c906108c | 327 | static void |
fba45db2 | 328 | default_terminal_info (char *args, int from_tty) |
c906108c | 329 | { |
a3f17187 | 330 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
331 | } |
332 | ||
333 | /* This is the default target_create_inferior and target_attach function. | |
334 | If the current target is executing, it asks whether to kill it off. | |
335 | If this function returns without calling error(), it has killed off | |
336 | the target, and the operation should be attempted. */ | |
337 | ||
338 | static void | |
fba45db2 | 339 | kill_or_be_killed (int from_tty) |
c906108c SS |
340 | { |
341 | if (target_has_execution) | |
342 | { | |
a3f17187 | 343 | printf_unfiltered (_("You are already running a program:\n")); |
c906108c | 344 | target_files_info (); |
c5aa993b JM |
345 | if (query ("Kill it? ")) |
346 | { | |
347 | target_kill (); | |
348 | if (target_has_execution) | |
8a3fe4f8 | 349 | error (_("Killing the program did not help.")); |
c5aa993b JM |
350 | return; |
351 | } | |
352 | else | |
353 | { | |
8a3fe4f8 | 354 | error (_("Program not killed.")); |
c5aa993b | 355 | } |
c906108c | 356 | } |
c5aa993b | 357 | tcomplain (); |
c906108c SS |
358 | } |
359 | ||
360 | static void | |
fba45db2 | 361 | maybe_kill_then_attach (char *args, int from_tty) |
c906108c SS |
362 | { |
363 | kill_or_be_killed (from_tty); | |
364 | target_attach (args, from_tty); | |
365 | } | |
366 | ||
367 | static void | |
c27cda74 AC |
368 | maybe_kill_then_create_inferior (char *exec, char *args, char **env, |
369 | int from_tty) | |
c906108c SS |
370 | { |
371 | kill_or_be_killed (0); | |
c27cda74 | 372 | target_create_inferior (exec, args, env, from_tty); |
c906108c SS |
373 | } |
374 | ||
7998dfc3 AC |
375 | /* Go through the target stack from top to bottom, copying over zero |
376 | entries in current_target, then filling in still empty entries. In | |
377 | effect, we are doing class inheritance through the pushed target | |
378 | vectors. | |
379 | ||
380 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
381 | is currently implemented, is that it discards any knowledge of | |
382 | which target an inherited method originally belonged to. | |
383 | Consequently, new new target methods should instead explicitly and | |
384 | locally search the target stack for the target that can handle the | |
385 | request. */ | |
c906108c SS |
386 | |
387 | static void | |
7998dfc3 | 388 | update_current_target (void) |
c906108c | 389 | { |
7998dfc3 AC |
390 | struct target_ops *t; |
391 | ||
08d8bcd7 | 392 | /* First, reset current's contents. */ |
7998dfc3 AC |
393 | memset (¤t_target, 0, sizeof (current_target)); |
394 | ||
395 | #define INHERIT(FIELD, TARGET) \ | |
396 | if (!current_target.FIELD) \ | |
397 | current_target.FIELD = (TARGET)->FIELD | |
398 | ||
399 | for (t = target_stack; t; t = t->beneath) | |
400 | { | |
401 | INHERIT (to_shortname, t); | |
402 | INHERIT (to_longname, t); | |
403 | INHERIT (to_doc, t); | |
404 | INHERIT (to_open, t); | |
405 | INHERIT (to_close, t); | |
406 | INHERIT (to_attach, t); | |
407 | INHERIT (to_post_attach, t); | |
408 | INHERIT (to_detach, t); | |
597320e7 | 409 | /* Do not inherit to_disconnect. */ |
7998dfc3 AC |
410 | INHERIT (to_resume, t); |
411 | INHERIT (to_wait, t); | |
7998dfc3 AC |
412 | INHERIT (to_fetch_registers, t); |
413 | INHERIT (to_store_registers, t); | |
414 | INHERIT (to_prepare_to_store, t); | |
c8e73a31 | 415 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
416 | INHERIT (to_files_info, t); |
417 | INHERIT (to_insert_breakpoint, t); | |
418 | INHERIT (to_remove_breakpoint, t); | |
419 | INHERIT (to_can_use_hw_breakpoint, t); | |
420 | INHERIT (to_insert_hw_breakpoint, t); | |
421 | INHERIT (to_remove_hw_breakpoint, t); | |
422 | INHERIT (to_insert_watchpoint, t); | |
423 | INHERIT (to_remove_watchpoint, t); | |
424 | INHERIT (to_stopped_data_address, t); | |
74174d2e | 425 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 426 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
427 | INHERIT (to_stopped_by_watchpoint, t); |
428 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 429 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
7998dfc3 AC |
430 | INHERIT (to_terminal_init, t); |
431 | INHERIT (to_terminal_inferior, t); | |
432 | INHERIT (to_terminal_ours_for_output, t); | |
433 | INHERIT (to_terminal_ours, t); | |
434 | INHERIT (to_terminal_save_ours, t); | |
435 | INHERIT (to_terminal_info, t); | |
436 | INHERIT (to_kill, t); | |
437 | INHERIT (to_load, t); | |
438 | INHERIT (to_lookup_symbol, t); | |
439 | INHERIT (to_create_inferior, t); | |
440 | INHERIT (to_post_startup_inferior, t); | |
441 | INHERIT (to_acknowledge_created_inferior, t); | |
442 | INHERIT (to_insert_fork_catchpoint, t); | |
443 | INHERIT (to_remove_fork_catchpoint, t); | |
444 | INHERIT (to_insert_vfork_catchpoint, t); | |
445 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 446 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
447 | INHERIT (to_insert_exec_catchpoint, t); |
448 | INHERIT (to_remove_exec_catchpoint, t); | |
7998dfc3 AC |
449 | INHERIT (to_has_exited, t); |
450 | INHERIT (to_mourn_inferior, t); | |
451 | INHERIT (to_can_run, t); | |
452 | INHERIT (to_notice_signals, t); | |
453 | INHERIT (to_thread_alive, t); | |
454 | INHERIT (to_find_new_threads, t); | |
455 | INHERIT (to_pid_to_str, t); | |
456 | INHERIT (to_extra_thread_info, t); | |
457 | INHERIT (to_stop, t); | |
4b8a223f | 458 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 459 | INHERIT (to_rcmd, t); |
7998dfc3 | 460 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 461 | INHERIT (to_log_command, t); |
7998dfc3 AC |
462 | INHERIT (to_stratum, t); |
463 | INHERIT (to_has_all_memory, t); | |
464 | INHERIT (to_has_memory, t); | |
465 | INHERIT (to_has_stack, t); | |
466 | INHERIT (to_has_registers, t); | |
467 | INHERIT (to_has_execution, t); | |
468 | INHERIT (to_has_thread_control, t); | |
469 | INHERIT (to_sections, t); | |
470 | INHERIT (to_sections_end, t); | |
471 | INHERIT (to_can_async_p, t); | |
472 | INHERIT (to_is_async_p, t); | |
473 | INHERIT (to_async, t); | |
b84876c2 | 474 | INHERIT (to_async_mask, t); |
7998dfc3 AC |
475 | INHERIT (to_find_memory_regions, t); |
476 | INHERIT (to_make_corefile_notes, t); | |
477 | INHERIT (to_get_thread_local_address, t); | |
424163ea | 478 | /* Do not inherit to_read_description. */ |
7998dfc3 | 479 | INHERIT (to_magic, t); |
fd79ecee | 480 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
481 | /* Do not inherit to_flash_erase. */ |
482 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
483 | } |
484 | #undef INHERIT | |
485 | ||
486 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
487 | it. Some entries are defaulted to a method that print an error, |
488 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
489 | |
490 | #define de_fault(field, value) \ | |
7998dfc3 AC |
491 | if (!current_target.field) \ |
492 | current_target.field = value | |
0d06e24b | 493 | |
2bc416ba DJ |
494 | de_fault (to_open, |
495 | (void (*) (char *, int)) | |
0d06e24b | 496 | tcomplain); |
2bc416ba DJ |
497 | de_fault (to_close, |
498 | (void (*) (int)) | |
0d06e24b | 499 | target_ignore); |
2bc416ba | 500 | de_fault (to_attach, |
0d06e24b | 501 | maybe_kill_then_attach); |
2bc416ba DJ |
502 | de_fault (to_post_attach, |
503 | (void (*) (int)) | |
0d06e24b | 504 | target_ignore); |
2bc416ba DJ |
505 | de_fault (to_detach, |
506 | (void (*) (char *, int)) | |
0d06e24b | 507 | target_ignore); |
2bc416ba DJ |
508 | de_fault (to_resume, |
509 | (void (*) (ptid_t, int, enum target_signal)) | |
0d06e24b | 510 | noprocess); |
2bc416ba DJ |
511 | de_fault (to_wait, |
512 | (ptid_t (*) (ptid_t, struct target_waitstatus *)) | |
0d06e24b | 513 | noprocess); |
2bc416ba | 514 | de_fault (to_fetch_registers, |
56be3814 | 515 | (void (*) (struct regcache *, int)) |
0d06e24b | 516 | target_ignore); |
2bc416ba | 517 | de_fault (to_store_registers, |
56be3814 | 518 | (void (*) (struct regcache *, int)) |
0d06e24b | 519 | noprocess); |
2bc416ba | 520 | de_fault (to_prepare_to_store, |
316f2060 | 521 | (void (*) (struct regcache *)) |
0d06e24b | 522 | noprocess); |
2bc416ba DJ |
523 | de_fault (deprecated_xfer_memory, |
524 | (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 525 | nomemory); |
2bc416ba DJ |
526 | de_fault (to_files_info, |
527 | (void (*) (struct target_ops *)) | |
0d06e24b | 528 | target_ignore); |
2bc416ba | 529 | de_fault (to_insert_breakpoint, |
0d06e24b | 530 | memory_insert_breakpoint); |
2bc416ba | 531 | de_fault (to_remove_breakpoint, |
0d06e24b | 532 | memory_remove_breakpoint); |
ccaa32c7 GS |
533 | de_fault (to_can_use_hw_breakpoint, |
534 | (int (*) (int, int, int)) | |
535 | return_zero); | |
536 | de_fault (to_insert_hw_breakpoint, | |
8181d85f | 537 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
538 | return_minus_one); |
539 | de_fault (to_remove_hw_breakpoint, | |
8181d85f | 540 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
541 | return_minus_one); |
542 | de_fault (to_insert_watchpoint, | |
543 | (int (*) (CORE_ADDR, int, int)) | |
544 | return_minus_one); | |
545 | de_fault (to_remove_watchpoint, | |
546 | (int (*) (CORE_ADDR, int, int)) | |
547 | return_minus_one); | |
548 | de_fault (to_stopped_by_watchpoint, | |
549 | (int (*) (void)) | |
550 | return_zero); | |
551 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 552 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 553 | return_zero); |
5009afc5 AS |
554 | de_fault (to_watchpoint_addr_within_range, |
555 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
556 | de_fault (to_region_ok_for_hw_watchpoint, |
557 | default_region_ok_for_hw_watchpoint); | |
2bc416ba DJ |
558 | de_fault (to_terminal_init, |
559 | (void (*) (void)) | |
0d06e24b | 560 | target_ignore); |
2bc416ba DJ |
561 | de_fault (to_terminal_inferior, |
562 | (void (*) (void)) | |
0d06e24b | 563 | target_ignore); |
2bc416ba DJ |
564 | de_fault (to_terminal_ours_for_output, |
565 | (void (*) (void)) | |
0d06e24b | 566 | target_ignore); |
2bc416ba DJ |
567 | de_fault (to_terminal_ours, |
568 | (void (*) (void)) | |
0d06e24b | 569 | target_ignore); |
2bc416ba DJ |
570 | de_fault (to_terminal_save_ours, |
571 | (void (*) (void)) | |
a790ad35 | 572 | target_ignore); |
2bc416ba | 573 | de_fault (to_terminal_info, |
0d06e24b | 574 | default_terminal_info); |
2bc416ba DJ |
575 | de_fault (to_kill, |
576 | (void (*) (void)) | |
0d06e24b | 577 | noprocess); |
2bc416ba DJ |
578 | de_fault (to_load, |
579 | (void (*) (char *, int)) | |
0d06e24b | 580 | tcomplain); |
2bc416ba DJ |
581 | de_fault (to_lookup_symbol, |
582 | (int (*) (char *, CORE_ADDR *)) | |
0d06e24b | 583 | nosymbol); |
2bc416ba | 584 | de_fault (to_create_inferior, |
0d06e24b | 585 | maybe_kill_then_create_inferior); |
2bc416ba DJ |
586 | de_fault (to_post_startup_inferior, |
587 | (void (*) (ptid_t)) | |
0d06e24b | 588 | target_ignore); |
2bc416ba DJ |
589 | de_fault (to_acknowledge_created_inferior, |
590 | (void (*) (int)) | |
0d06e24b | 591 | target_ignore); |
2bc416ba DJ |
592 | de_fault (to_insert_fork_catchpoint, |
593 | (void (*) (int)) | |
0d06e24b | 594 | tcomplain); |
2bc416ba DJ |
595 | de_fault (to_remove_fork_catchpoint, |
596 | (int (*) (int)) | |
0d06e24b | 597 | tcomplain); |
2bc416ba DJ |
598 | de_fault (to_insert_vfork_catchpoint, |
599 | (void (*) (int)) | |
0d06e24b | 600 | tcomplain); |
2bc416ba DJ |
601 | de_fault (to_remove_vfork_catchpoint, |
602 | (int (*) (int)) | |
0d06e24b | 603 | tcomplain); |
2bc416ba DJ |
604 | de_fault (to_insert_exec_catchpoint, |
605 | (void (*) (int)) | |
0d06e24b | 606 | tcomplain); |
2bc416ba DJ |
607 | de_fault (to_remove_exec_catchpoint, |
608 | (int (*) (int)) | |
0d06e24b | 609 | tcomplain); |
2bc416ba DJ |
610 | de_fault (to_has_exited, |
611 | (int (*) (int, int, int *)) | |
0d06e24b | 612 | return_zero); |
2bc416ba DJ |
613 | de_fault (to_mourn_inferior, |
614 | (void (*) (void)) | |
0d06e24b | 615 | noprocess); |
2bc416ba | 616 | de_fault (to_can_run, |
0d06e24b | 617 | return_zero); |
2bc416ba DJ |
618 | de_fault (to_notice_signals, |
619 | (void (*) (ptid_t)) | |
0d06e24b | 620 | target_ignore); |
2bc416ba DJ |
621 | de_fault (to_thread_alive, |
622 | (int (*) (ptid_t)) | |
0d06e24b | 623 | return_zero); |
2bc416ba DJ |
624 | de_fault (to_find_new_threads, |
625 | (void (*) (void)) | |
0d06e24b | 626 | target_ignore); |
2bc416ba DJ |
627 | de_fault (to_extra_thread_info, |
628 | (char *(*) (struct thread_info *)) | |
0d06e24b | 629 | return_zero); |
2bc416ba DJ |
630 | de_fault (to_stop, |
631 | (void (*) (void)) | |
0d06e24b | 632 | target_ignore); |
cf7a04e8 | 633 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
634 | de_fault (to_rcmd, |
635 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 636 | tcomplain); |
2bc416ba DJ |
637 | de_fault (to_pid_to_exec_file, |
638 | (char *(*) (int)) | |
0d06e24b | 639 | return_zero); |
2bc416ba DJ |
640 | de_fault (to_can_async_p, |
641 | (int (*) (void)) | |
0d06e24b | 642 | return_zero); |
2bc416ba DJ |
643 | de_fault (to_is_async_p, |
644 | (int (*) (void)) | |
0d06e24b | 645 | return_zero); |
2bc416ba DJ |
646 | de_fault (to_async, |
647 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 648 | tcomplain); |
b84876c2 PA |
649 | de_fault (to_async_mask, |
650 | (int (*) (int)) | |
651 | return_one); | |
424163ea | 652 | current_target.to_read_description = NULL; |
c906108c | 653 | #undef de_fault |
c906108c | 654 | |
7998dfc3 AC |
655 | /* Finally, position the target-stack beneath the squashed |
656 | "current_target". That way code looking for a non-inherited | |
657 | target method can quickly and simply find it. */ | |
658 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
659 | |
660 | if (targetdebug) | |
661 | setup_target_debug (); | |
c906108c SS |
662 | } |
663 | ||
52bb452f DJ |
664 | /* Mark OPS as a running target. This reverses the effect |
665 | of target_mark_exited. */ | |
666 | ||
667 | void | |
668 | target_mark_running (struct target_ops *ops) | |
669 | { | |
670 | struct target_ops *t; | |
671 | ||
672 | for (t = target_stack; t != NULL; t = t->beneath) | |
673 | if (t == ops) | |
674 | break; | |
675 | if (t == NULL) | |
676 | internal_error (__FILE__, __LINE__, | |
677 | "Attempted to mark unpushed target \"%s\" as running", | |
678 | ops->to_shortname); | |
679 | ||
680 | ops->to_has_execution = 1; | |
681 | ops->to_has_all_memory = 1; | |
682 | ops->to_has_memory = 1; | |
683 | ops->to_has_stack = 1; | |
684 | ops->to_has_registers = 1; | |
685 | ||
686 | update_current_target (); | |
687 | } | |
688 | ||
689 | /* Mark OPS as a non-running target. This reverses the effect | |
690 | of target_mark_running. */ | |
691 | ||
692 | void | |
693 | target_mark_exited (struct target_ops *ops) | |
694 | { | |
695 | struct target_ops *t; | |
696 | ||
697 | for (t = target_stack; t != NULL; t = t->beneath) | |
698 | if (t == ops) | |
699 | break; | |
700 | if (t == NULL) | |
701 | internal_error (__FILE__, __LINE__, | |
702 | "Attempted to mark unpushed target \"%s\" as running", | |
703 | ops->to_shortname); | |
704 | ||
705 | ops->to_has_execution = 0; | |
706 | ops->to_has_all_memory = 0; | |
707 | ops->to_has_memory = 0; | |
708 | ops->to_has_stack = 0; | |
709 | ops->to_has_registers = 0; | |
710 | ||
711 | update_current_target (); | |
712 | } | |
713 | ||
c906108c SS |
714 | /* Push a new target type into the stack of the existing target accessors, |
715 | possibly superseding some of the existing accessors. | |
716 | ||
717 | Result is zero if the pushed target ended up on top of the stack, | |
718 | nonzero if at least one target is on top of it. | |
719 | ||
720 | Rather than allow an empty stack, we always have the dummy target at | |
721 | the bottom stratum, so we can call the function vectors without | |
722 | checking them. */ | |
723 | ||
724 | int | |
fba45db2 | 725 | push_target (struct target_ops *t) |
c906108c | 726 | { |
258b763a | 727 | struct target_ops **cur; |
c906108c SS |
728 | |
729 | /* Check magic number. If wrong, it probably means someone changed | |
730 | the struct definition, but not all the places that initialize one. */ | |
731 | if (t->to_magic != OPS_MAGIC) | |
732 | { | |
c5aa993b JM |
733 | fprintf_unfiltered (gdb_stderr, |
734 | "Magic number of %s target struct wrong\n", | |
735 | t->to_shortname); | |
e2e0b3e5 | 736 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
737 | } |
738 | ||
258b763a AC |
739 | /* Find the proper stratum to install this target in. */ |
740 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 741 | { |
258b763a | 742 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
743 | break; |
744 | } | |
745 | ||
258b763a | 746 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 747 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
748 | targets to CUR, and not just those at this stratum level. */ |
749 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
750 | { | |
751 | /* There's already something at this stratum level. Close it, | |
752 | and un-hook it from the stack. */ | |
753 | struct target_ops *tmp = (*cur); | |
754 | (*cur) = (*cur)->beneath; | |
755 | tmp->beneath = NULL; | |
f1c07ab0 | 756 | target_close (tmp, 0); |
258b763a | 757 | } |
c906108c SS |
758 | |
759 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
760 | t->beneath = (*cur); |
761 | (*cur) = t; | |
c906108c SS |
762 | |
763 | update_current_target (); | |
764 | ||
258b763a AC |
765 | /* Not on top? */ |
766 | return (t != target_stack); | |
c906108c SS |
767 | } |
768 | ||
2bc416ba | 769 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
770 | Return how many times it was removed (0 or 1). */ |
771 | ||
772 | int | |
fba45db2 | 773 | unpush_target (struct target_ops *t) |
c906108c | 774 | { |
258b763a AC |
775 | struct target_ops **cur; |
776 | struct target_ops *tmp; | |
c906108c | 777 | |
c906108c SS |
778 | /* Look for the specified target. Note that we assume that a target |
779 | can only occur once in the target stack. */ | |
780 | ||
258b763a AC |
781 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
782 | { | |
783 | if ((*cur) == t) | |
784 | break; | |
785 | } | |
c906108c | 786 | |
258b763a | 787 | if ((*cur) == NULL) |
c906108c SS |
788 | return 0; /* Didn't find target_ops, quit now */ |
789 | ||
5269965e AC |
790 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
791 | unconditional by moving it to before the above check that the | |
792 | target was in the target stack (something about "Change the way | |
793 | pushing and popping of targets work to support target overlays | |
794 | and inheritance"). This doesn't make much sense - only open | |
795 | targets should be closed. */ | |
796 | target_close (t, 0); | |
797 | ||
c906108c | 798 | /* Unchain the target */ |
258b763a AC |
799 | tmp = (*cur); |
800 | (*cur) = (*cur)->beneath; | |
801 | tmp->beneath = NULL; | |
c906108c SS |
802 | |
803 | update_current_target (); | |
c906108c SS |
804 | |
805 | return 1; | |
806 | } | |
807 | ||
808 | void | |
fba45db2 | 809 | pop_target (void) |
c906108c | 810 | { |
f1c07ab0 | 811 | target_close (¤t_target, 0); /* Let it clean up */ |
258b763a | 812 | if (unpush_target (target_stack) == 1) |
c906108c SS |
813 | return; |
814 | ||
c5aa993b JM |
815 | fprintf_unfiltered (gdb_stderr, |
816 | "pop_target couldn't find target %s\n", | |
817 | current_target.to_shortname); | |
e2e0b3e5 | 818 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
819 | } |
820 | ||
72f5cf0e | 821 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
822 | current thread's thread-local storage with offset OFFSET. */ |
823 | CORE_ADDR | |
824 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
825 | { | |
826 | volatile CORE_ADDR addr = 0; | |
827 | ||
828 | if (target_get_thread_local_address_p () | |
829 | && gdbarch_fetch_tls_load_module_address_p (current_gdbarch)) | |
830 | { | |
831 | ptid_t ptid = inferior_ptid; | |
832 | volatile struct gdb_exception ex; | |
833 | ||
834 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
835 | { | |
836 | CORE_ADDR lm_addr; | |
837 | ||
838 | /* Fetch the load module address for this objfile. */ | |
839 | lm_addr = gdbarch_fetch_tls_load_module_address (current_gdbarch, | |
840 | objfile); | |
841 | /* If it's 0, throw the appropriate exception. */ | |
842 | if (lm_addr == 0) | |
843 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
844 | _("TLS load module not found")); | |
845 | ||
846 | addr = target_get_thread_local_address (ptid, lm_addr, offset); | |
847 | } | |
848 | /* If an error occurred, print TLS related messages here. Otherwise, | |
849 | throw the error to some higher catcher. */ | |
850 | if (ex.reason < 0) | |
851 | { | |
852 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
853 | ||
854 | switch (ex.error) | |
855 | { | |
856 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
857 | error (_("Cannot find thread-local variables in this thread library.")); | |
858 | break; | |
859 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
860 | if (objfile_is_library) | |
861 | error (_("Cannot find shared library `%s' in dynamic" | |
862 | " linker's load module list"), objfile->name); | |
863 | else | |
864 | error (_("Cannot find executable file `%s' in dynamic" | |
865 | " linker's load module list"), objfile->name); | |
866 | break; | |
867 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
868 | if (objfile_is_library) | |
869 | error (_("The inferior has not yet allocated storage for" | |
870 | " thread-local variables in\n" | |
871 | "the shared library `%s'\n" | |
872 | "for %s"), | |
873 | objfile->name, target_pid_to_str (ptid)); | |
874 | else | |
875 | error (_("The inferior has not yet allocated storage for" | |
876 | " thread-local variables in\n" | |
877 | "the executable `%s'\n" | |
878 | "for %s"), | |
879 | objfile->name, target_pid_to_str (ptid)); | |
880 | break; | |
881 | case TLS_GENERIC_ERROR: | |
882 | if (objfile_is_library) | |
883 | error (_("Cannot find thread-local storage for %s, " | |
884 | "shared library %s:\n%s"), | |
885 | target_pid_to_str (ptid), | |
886 | objfile->name, ex.message); | |
887 | else | |
888 | error (_("Cannot find thread-local storage for %s, " | |
889 | "executable file %s:\n%s"), | |
890 | target_pid_to_str (ptid), | |
891 | objfile->name, ex.message); | |
892 | break; | |
893 | default: | |
894 | throw_exception (ex); | |
895 | break; | |
896 | } | |
897 | } | |
898 | } | |
899 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
900 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
901 | else | |
902 | error (_("Cannot find thread-local variables on this target")); | |
903 | ||
904 | return addr; | |
905 | } | |
906 | ||
c906108c SS |
907 | #undef MIN |
908 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
909 | ||
910 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
911 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
912 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
913 | is responsible for freeing it. Return the number of bytes successfully | |
914 | read. */ | |
915 | ||
916 | int | |
fba45db2 | 917 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
918 | { |
919 | int tlen, origlen, offset, i; | |
1b0ba102 | 920 | gdb_byte buf[4]; |
c906108c SS |
921 | int errcode = 0; |
922 | char *buffer; | |
923 | int buffer_allocated; | |
924 | char *bufptr; | |
925 | unsigned int nbytes_read = 0; | |
926 | ||
6217bf3e MS |
927 | gdb_assert (string); |
928 | ||
c906108c SS |
929 | /* Small for testing. */ |
930 | buffer_allocated = 4; | |
931 | buffer = xmalloc (buffer_allocated); | |
932 | bufptr = buffer; | |
933 | ||
934 | origlen = len; | |
935 | ||
936 | while (len > 0) | |
937 | { | |
938 | tlen = MIN (len, 4 - (memaddr & 3)); | |
939 | offset = memaddr & 3; | |
940 | ||
1b0ba102 | 941 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
942 | if (errcode != 0) |
943 | { | |
944 | /* The transfer request might have crossed the boundary to an | |
945 | unallocated region of memory. Retry the transfer, requesting | |
946 | a single byte. */ | |
947 | tlen = 1; | |
948 | offset = 0; | |
b8eb5af0 | 949 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
950 | if (errcode != 0) |
951 | goto done; | |
952 | } | |
953 | ||
954 | if (bufptr - buffer + tlen > buffer_allocated) | |
955 | { | |
956 | unsigned int bytes; | |
957 | bytes = bufptr - buffer; | |
958 | buffer_allocated *= 2; | |
959 | buffer = xrealloc (buffer, buffer_allocated); | |
960 | bufptr = buffer + bytes; | |
961 | } | |
962 | ||
963 | for (i = 0; i < tlen; i++) | |
964 | { | |
965 | *bufptr++ = buf[i + offset]; | |
966 | if (buf[i + offset] == '\000') | |
967 | { | |
968 | nbytes_read += i + 1; | |
969 | goto done; | |
970 | } | |
971 | } | |
972 | ||
973 | memaddr += tlen; | |
974 | len -= tlen; | |
975 | nbytes_read += tlen; | |
976 | } | |
c5aa993b | 977 | done: |
6217bf3e | 978 | *string = buffer; |
c906108c SS |
979 | if (errnop != NULL) |
980 | *errnop = errcode; | |
c906108c SS |
981 | return nbytes_read; |
982 | } | |
983 | ||
8db32d44 AC |
984 | /* Find a section containing ADDR. */ |
985 | struct section_table * | |
986 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
987 | { | |
988 | struct section_table *secp; | |
989 | for (secp = target->to_sections; | |
990 | secp < target->to_sections_end; | |
991 | secp++) | |
992 | { | |
993 | if (addr >= secp->addr && addr < secp->endaddr) | |
994 | return secp; | |
995 | } | |
996 | return NULL; | |
997 | } | |
998 | ||
cf7a04e8 DJ |
999 | /* Perform a partial memory transfer. The arguments and return |
1000 | value are just as for target_xfer_partial. */ | |
1001 | ||
1002 | static LONGEST | |
1003 | memory_xfer_partial (struct target_ops *ops, void *readbuf, const void *writebuf, | |
1004 | ULONGEST memaddr, LONGEST len) | |
0779438d | 1005 | { |
cf7a04e8 DJ |
1006 | LONGEST res; |
1007 | int reg_len; | |
1008 | struct mem_region *region; | |
1009 | ||
1010 | /* Zero length requests are ok and require no work. */ | |
1011 | if (len == 0) | |
1012 | return 0; | |
1013 | ||
1014 | /* Try the executable file, if "trust-readonly-sections" is set. */ | |
1015 | if (readbuf != NULL && trust_readonly) | |
1016 | { | |
1017 | struct section_table *secp; | |
1018 | ||
1019 | secp = target_section_by_addr (ops, memaddr); | |
1020 | if (secp != NULL | |
1021 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1022 | & SEC_READONLY)) | |
1023 | return xfer_memory (memaddr, readbuf, len, 0, NULL, ops); | |
1024 | } | |
1025 | ||
98646950 UW |
1026 | /* Likewise for accesses to unmapped overlay sections. */ |
1027 | if (readbuf != NULL && overlay_debugging) | |
1028 | { | |
1029 | asection *section = find_pc_overlay (memaddr); | |
1030 | if (pc_in_unmapped_range (memaddr, section)) | |
1031 | return xfer_memory (memaddr, readbuf, len, 0, NULL, ops); | |
1032 | } | |
1033 | ||
cf7a04e8 DJ |
1034 | /* Try GDB's internal data cache. */ |
1035 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1036 | /* region->hi == 0 means there's no upper bound. */ |
1037 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1038 | reg_len = len; |
1039 | else | |
1040 | reg_len = region->hi - memaddr; | |
1041 | ||
1042 | switch (region->attrib.mode) | |
1043 | { | |
1044 | case MEM_RO: | |
1045 | if (writebuf != NULL) | |
1046 | return -1; | |
1047 | break; | |
1048 | ||
1049 | case MEM_WO: | |
1050 | if (readbuf != NULL) | |
1051 | return -1; | |
1052 | break; | |
a76d924d DJ |
1053 | |
1054 | case MEM_FLASH: | |
1055 | /* We only support writing to flash during "load" for now. */ | |
1056 | if (writebuf != NULL) | |
1057 | error (_("Writing to flash memory forbidden in this context")); | |
1058 | break; | |
4b5752d0 VP |
1059 | |
1060 | case MEM_NONE: | |
1061 | return -1; | |
cf7a04e8 DJ |
1062 | } |
1063 | ||
1064 | if (region->attrib.cache) | |
1065 | { | |
1066 | /* FIXME drow/2006-08-09: This call discards OPS, so the raw | |
1067 | memory request will start back at current_target. */ | |
1068 | if (readbuf != NULL) | |
1069 | res = dcache_xfer_memory (target_dcache, memaddr, readbuf, | |
1070 | reg_len, 0); | |
1071 | else | |
1072 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1073 | correctness dcache_xfer_memory should take readbuf and | |
1074 | writebuf. */ | |
1075 | res = dcache_xfer_memory (target_dcache, memaddr, | |
1076 | (void *) writebuf, | |
1077 | reg_len, 1); | |
1078 | if (res <= 0) | |
1079 | return -1; | |
1080 | else | |
8defab1a DJ |
1081 | { |
1082 | if (readbuf && !show_memory_breakpoints) | |
1083 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1084 | return res; | |
1085 | } | |
cf7a04e8 DJ |
1086 | } |
1087 | ||
1088 | /* If none of those methods found the memory we wanted, fall back | |
1089 | to a target partial transfer. Normally a single call to | |
1090 | to_xfer_partial is enough; if it doesn't recognize an object | |
1091 | it will call the to_xfer_partial of the next target down. | |
1092 | But for memory this won't do. Memory is the only target | |
1093 | object which can be read from more than one valid target. | |
1094 | A core file, for instance, could have some of memory but | |
1095 | delegate other bits to the target below it. So, we must | |
1096 | manually try all targets. */ | |
1097 | ||
1098 | do | |
1099 | { | |
1100 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1101 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1102 | if (res > 0) |
8defab1a | 1103 | break; |
cf7a04e8 | 1104 | |
5ad3a4ca DJ |
1105 | /* We want to continue past core files to executables, but not |
1106 | past a running target's memory. */ | |
1107 | if (ops->to_has_all_memory) | |
8defab1a | 1108 | break; |
5ad3a4ca | 1109 | |
cf7a04e8 DJ |
1110 | ops = ops->beneath; |
1111 | } | |
1112 | while (ops != NULL); | |
1113 | ||
8defab1a DJ |
1114 | if (readbuf && !show_memory_breakpoints) |
1115 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1116 | ||
cf7a04e8 DJ |
1117 | /* If we still haven't got anything, return the last error. We |
1118 | give up. */ | |
1119 | return res; | |
0779438d AC |
1120 | } |
1121 | ||
8defab1a DJ |
1122 | static void |
1123 | restore_show_memory_breakpoints (void *arg) | |
1124 | { | |
1125 | show_memory_breakpoints = (uintptr_t) arg; | |
1126 | } | |
1127 | ||
1128 | struct cleanup * | |
1129 | make_show_memory_breakpoints_cleanup (int show) | |
1130 | { | |
1131 | int current = show_memory_breakpoints; | |
1132 | show_memory_breakpoints = show; | |
1133 | ||
1134 | return make_cleanup (restore_show_memory_breakpoints, | |
1135 | (void *) (uintptr_t) current); | |
1136 | } | |
1137 | ||
27394598 AC |
1138 | static LONGEST |
1139 | target_xfer_partial (struct target_ops *ops, | |
1140 | enum target_object object, const char *annex, | |
1141 | void *readbuf, const void *writebuf, | |
1142 | ULONGEST offset, LONGEST len) | |
1143 | { | |
1144 | LONGEST retval; | |
1145 | ||
1146 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 DJ |
1147 | |
1148 | /* If this is a memory transfer, let the memory-specific code | |
1149 | have a look at it instead. Memory transfers are more | |
1150 | complicated. */ | |
1151 | if (object == TARGET_OBJECT_MEMORY) | |
1152 | retval = memory_xfer_partial (ops, readbuf, writebuf, offset, len); | |
1153 | else | |
1154 | { | |
1155 | enum target_object raw_object = object; | |
1156 | ||
1157 | /* If this is a raw memory transfer, request the normal | |
1158 | memory object from other layers. */ | |
1159 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1160 | raw_object = TARGET_OBJECT_MEMORY; | |
1161 | ||
1162 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1163 | writebuf, offset, len); | |
1164 | } | |
1165 | ||
27394598 AC |
1166 | if (targetdebug) |
1167 | { | |
1168 | const unsigned char *myaddr = NULL; | |
1169 | ||
1170 | fprintf_unfiltered (gdb_stdlog, | |
1171 | "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, 0x%s, %s) = %s", | |
1172 | ops->to_shortname, | |
1173 | (int) object, | |
1174 | (annex ? annex : "(null)"), | |
1175 | (long) readbuf, (long) writebuf, | |
1176 | paddr_nz (offset), paddr_d (len), paddr_d (retval)); | |
1177 | ||
1178 | if (readbuf) | |
1179 | myaddr = readbuf; | |
1180 | if (writebuf) | |
1181 | myaddr = writebuf; | |
1182 | if (retval > 0 && myaddr != NULL) | |
1183 | { | |
1184 | int i; | |
2bc416ba | 1185 | |
27394598 AC |
1186 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1187 | for (i = 0; i < retval; i++) | |
1188 | { | |
1189 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
1190 | { | |
1191 | if (targetdebug < 2 && i > 0) | |
1192 | { | |
1193 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1194 | break; | |
1195 | } | |
1196 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1197 | } | |
2bc416ba | 1198 | |
27394598 AC |
1199 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1200 | } | |
1201 | } | |
2bc416ba | 1202 | |
27394598 AC |
1203 | fputc_unfiltered ('\n', gdb_stdlog); |
1204 | } | |
1205 | return retval; | |
1206 | } | |
1207 | ||
c906108c SS |
1208 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1209 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1210 | if any error occurs. | |
1211 | ||
1212 | If an error occurs, no guarantee is made about the contents of the data at | |
1213 | MYADDR. In particular, the caller should not depend upon partial reads | |
1214 | filling the buffer with good data. There is no way for the caller to know | |
1215 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 DJ |
1216 | deal with partial reads should call target_read (which will retry until |
1217 | it makes no progress, and then return how much was transferred). */ | |
c906108c SS |
1218 | |
1219 | int | |
fc1a4b47 | 1220 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 1221 | { |
cf7a04e8 DJ |
1222 | if (target_read (¤t_target, TARGET_OBJECT_MEMORY, NULL, |
1223 | myaddr, memaddr, len) == len) | |
1224 | return 0; | |
0779438d | 1225 | else |
cf7a04e8 | 1226 | return EIO; |
c906108c SS |
1227 | } |
1228 | ||
c906108c | 1229 | int |
fc1a4b47 | 1230 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1231 | { |
cf7a04e8 DJ |
1232 | if (target_write (¤t_target, TARGET_OBJECT_MEMORY, NULL, |
1233 | myaddr, memaddr, len) == len) | |
1234 | return 0; | |
0779438d | 1235 | else |
cf7a04e8 | 1236 | return EIO; |
c906108c | 1237 | } |
c5aa993b | 1238 | |
fd79ecee DJ |
1239 | /* Fetch the target's memory map. */ |
1240 | ||
1241 | VEC(mem_region_s) * | |
1242 | target_memory_map (void) | |
1243 | { | |
1244 | VEC(mem_region_s) *result; | |
1245 | struct mem_region *last_one, *this_one; | |
1246 | int ix; | |
1247 | struct target_ops *t; | |
1248 | ||
1249 | if (targetdebug) | |
1250 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1251 | ||
1252 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1253 | if (t->to_memory_map != NULL) | |
1254 | break; | |
1255 | ||
1256 | if (t == NULL) | |
1257 | return NULL; | |
1258 | ||
1259 | result = t->to_memory_map (t); | |
1260 | if (result == NULL) | |
1261 | return NULL; | |
1262 | ||
1263 | qsort (VEC_address (mem_region_s, result), | |
1264 | VEC_length (mem_region_s, result), | |
1265 | sizeof (struct mem_region), mem_region_cmp); | |
1266 | ||
1267 | /* Check that regions do not overlap. Simultaneously assign | |
1268 | a numbering for the "mem" commands to use to refer to | |
1269 | each region. */ | |
1270 | last_one = NULL; | |
1271 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1272 | { | |
1273 | this_one->number = ix; | |
1274 | ||
1275 | if (last_one && last_one->hi > this_one->lo) | |
1276 | { | |
1277 | warning (_("Overlapping regions in memory map: ignoring")); | |
1278 | VEC_free (mem_region_s, result); | |
1279 | return NULL; | |
1280 | } | |
1281 | last_one = this_one; | |
1282 | } | |
1283 | ||
1284 | return result; | |
1285 | } | |
1286 | ||
a76d924d DJ |
1287 | void |
1288 | target_flash_erase (ULONGEST address, LONGEST length) | |
1289 | { | |
1290 | struct target_ops *t; | |
1291 | ||
1292 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1293 | if (t->to_flash_erase != NULL) | |
1294 | { | |
1295 | if (targetdebug) | |
1296 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1297 | paddr (address), phex (length, 0)); | |
8944021f DJ |
1298 | t->to_flash_erase (t, address, length); |
1299 | return; | |
a76d924d DJ |
1300 | } |
1301 | ||
1302 | tcomplain (); | |
1303 | } | |
1304 | ||
1305 | void | |
1306 | target_flash_done (void) | |
1307 | { | |
1308 | struct target_ops *t; | |
1309 | ||
1310 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1311 | if (t->to_flash_done != NULL) | |
1312 | { | |
1313 | if (targetdebug) | |
1314 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
8944021f DJ |
1315 | t->to_flash_done (t); |
1316 | return; | |
a76d924d DJ |
1317 | } |
1318 | ||
1319 | tcomplain (); | |
1320 | } | |
1321 | ||
4aa7a7f5 JJ |
1322 | #ifndef target_stopped_data_address_p |
1323 | int | |
1324 | target_stopped_data_address_p (struct target_ops *target) | |
1325 | { | |
aa869812 AC |
1326 | if (target->to_stopped_data_address |
1327 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero) | |
4aa7a7f5 | 1328 | return 0; |
aa869812 AC |
1329 | if (target->to_stopped_data_address == debug_to_stopped_data_address |
1330 | && (debug_target.to_stopped_data_address | |
1331 | == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero)) | |
1332 | return 0; | |
1333 | return 1; | |
4aa7a7f5 JJ |
1334 | } |
1335 | #endif | |
1336 | ||
920d2a44 AC |
1337 | static void |
1338 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1339 | struct cmd_list_element *c, const char *value) | |
1340 | { | |
1341 | fprintf_filtered (file, _("\ | |
1342 | Mode for reading from readonly sections is %s.\n"), | |
1343 | value); | |
1344 | } | |
3a11626d | 1345 | |
1e3ff5ad AC |
1346 | /* More generic transfers. */ |
1347 | ||
0088c768 | 1348 | static LONGEST |
8aa91c1e | 1349 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1350 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1351 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1352 | { |
1353 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1354 | && ops->deprecated_xfer_memory != NULL) |
1355 | /* If available, fall back to the target's | |
1356 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1357 | { |
4b8a223f | 1358 | int xfered = -1; |
0088c768 | 1359 | errno = 0; |
4b8a223f AC |
1360 | if (writebuf != NULL) |
1361 | { | |
1362 | void *buffer = xmalloc (len); | |
1363 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1364 | memcpy (buffer, writebuf, len); | |
c8e73a31 AC |
1365 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1366 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1367 | do_cleanups (cleanup); |
1368 | } | |
1369 | if (readbuf != NULL) | |
244e85c8 MS |
1370 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1371 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1372 | if (xfered > 0) |
1373 | return xfered; | |
1374 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1375 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1376 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1377 | return 0; |
1378 | else | |
1379 | return -1; | |
1380 | } | |
1381 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1382 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1383 | readbuf, writebuf, offset, len); | |
1384 | else | |
1385 | return -1; | |
1386 | } | |
1387 | ||
1388 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1389 | it does not need to handle memory specially; it just passes all | |
1390 | requests down the stack. */ | |
1391 | ||
1392 | static LONGEST | |
1393 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
1394 | const char *annex, gdb_byte *readbuf, | |
1395 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1396 | { | |
1397 | if (ops->beneath != NULL) | |
1398 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1399 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1400 | else |
1401 | return -1; | |
1402 | } | |
1403 | ||
1404 | /* Target vector read/write partial wrapper functions. | |
1405 | ||
1406 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1407 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1408 | easier. */ | |
1409 | ||
13547ab6 | 1410 | static LONGEST |
1e3ff5ad AC |
1411 | target_read_partial (struct target_ops *ops, |
1412 | enum target_object object, | |
1b0ba102 | 1413 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1414 | ULONGEST offset, LONGEST len) |
1415 | { | |
27394598 | 1416 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1417 | } |
1418 | ||
13547ab6 | 1419 | static LONGEST |
1e3ff5ad AC |
1420 | target_write_partial (struct target_ops *ops, |
1421 | enum target_object object, | |
1b0ba102 | 1422 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1423 | ULONGEST offset, LONGEST len) |
1424 | { | |
27394598 | 1425 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1426 | } |
1427 | ||
1428 | /* Wrappers to perform the full transfer. */ | |
1429 | LONGEST | |
1430 | target_read (struct target_ops *ops, | |
1431 | enum target_object object, | |
1b0ba102 | 1432 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1433 | ULONGEST offset, LONGEST len) |
1434 | { | |
1435 | LONGEST xfered = 0; | |
1436 | while (xfered < len) | |
1437 | { | |
0088c768 | 1438 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 1439 | (gdb_byte *) buf + xfered, |
0088c768 | 1440 | offset + xfered, len - xfered); |
1e3ff5ad | 1441 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
1442 | if (xfer == 0) |
1443 | return xfered; | |
1444 | if (xfer < 0) | |
0088c768 | 1445 | return -1; |
1e3ff5ad AC |
1446 | xfered += xfer; |
1447 | QUIT; | |
1448 | } | |
1449 | return len; | |
1450 | } | |
1451 | ||
cf7a04e8 DJ |
1452 | /* An alternative to target_write with progress callbacks. */ |
1453 | ||
1e3ff5ad | 1454 | LONGEST |
cf7a04e8 DJ |
1455 | target_write_with_progress (struct target_ops *ops, |
1456 | enum target_object object, | |
1457 | const char *annex, const gdb_byte *buf, | |
1458 | ULONGEST offset, LONGEST len, | |
1459 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
1460 | { |
1461 | LONGEST xfered = 0; | |
a76d924d DJ |
1462 | |
1463 | /* Give the progress callback a chance to set up. */ | |
1464 | if (progress) | |
1465 | (*progress) (0, baton); | |
1466 | ||
1e3ff5ad AC |
1467 | while (xfered < len) |
1468 | { | |
1469 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 1470 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 1471 | offset + xfered, len - xfered); |
cf7a04e8 | 1472 | |
13547ab6 DJ |
1473 | if (xfer == 0) |
1474 | return xfered; | |
1475 | if (xfer < 0) | |
0088c768 | 1476 | return -1; |
cf7a04e8 DJ |
1477 | |
1478 | if (progress) | |
1479 | (*progress) (xfer, baton); | |
1480 | ||
1e3ff5ad AC |
1481 | xfered += xfer; |
1482 | QUIT; | |
1483 | } | |
1484 | return len; | |
1485 | } | |
1486 | ||
cf7a04e8 DJ |
1487 | LONGEST |
1488 | target_write (struct target_ops *ops, | |
1489 | enum target_object object, | |
1490 | const char *annex, const gdb_byte *buf, | |
1491 | ULONGEST offset, LONGEST len) | |
1492 | { | |
1493 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1494 | NULL, NULL); | |
1495 | } | |
1496 | ||
159f81f3 DJ |
1497 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1498 | the size of the transferred data. PADDING additional bytes are | |
1499 | available in *BUF_P. This is a helper function for | |
1500 | target_read_alloc; see the declaration of that function for more | |
1501 | information. */ | |
13547ab6 | 1502 | |
159f81f3 DJ |
1503 | static LONGEST |
1504 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
1505 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
1506 | { |
1507 | size_t buf_alloc, buf_pos; | |
1508 | gdb_byte *buf; | |
1509 | LONGEST n; | |
1510 | ||
1511 | /* This function does not have a length parameter; it reads the | |
1512 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1513 | from one target and partly from another (in a different stratum, | |
1514 | e.g. a core file and an executable). Both reasons make it | |
1515 | unsuitable for reading memory. */ | |
1516 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1517 | ||
1518 | /* Start by reading up to 4K at a time. The target will throttle | |
1519 | this number down if necessary. */ | |
1520 | buf_alloc = 4096; | |
1521 | buf = xmalloc (buf_alloc); | |
1522 | buf_pos = 0; | |
1523 | while (1) | |
1524 | { | |
1525 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 1526 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
1527 | if (n < 0) |
1528 | { | |
1529 | /* An error occurred. */ | |
1530 | xfree (buf); | |
1531 | return -1; | |
1532 | } | |
1533 | else if (n == 0) | |
1534 | { | |
1535 | /* Read all there was. */ | |
1536 | if (buf_pos == 0) | |
1537 | xfree (buf); | |
1538 | else | |
1539 | *buf_p = buf; | |
1540 | return buf_pos; | |
1541 | } | |
1542 | ||
1543 | buf_pos += n; | |
1544 | ||
1545 | /* If the buffer is filling up, expand it. */ | |
1546 | if (buf_alloc < buf_pos * 2) | |
1547 | { | |
1548 | buf_alloc *= 2; | |
1549 | buf = xrealloc (buf, buf_alloc); | |
1550 | } | |
1551 | ||
1552 | QUIT; | |
1553 | } | |
1554 | } | |
1555 | ||
159f81f3 DJ |
1556 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1557 | the size of the transferred data. See the declaration in "target.h" | |
1558 | function for more information about the return value. */ | |
1559 | ||
1560 | LONGEST | |
1561 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
1562 | const char *annex, gdb_byte **buf_p) | |
1563 | { | |
1564 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
1565 | } | |
1566 | ||
1567 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
1568 | returned as a string, allocated using xmalloc. If an error occurs | |
1569 | or the transfer is unsupported, NULL is returned. Empty objects | |
1570 | are returned as allocated but empty strings. A warning is issued | |
1571 | if the result contains any embedded NUL bytes. */ | |
1572 | ||
1573 | char * | |
1574 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
1575 | const char *annex) | |
1576 | { | |
1577 | gdb_byte *buffer; | |
1578 | LONGEST transferred; | |
1579 | ||
1580 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); | |
1581 | ||
1582 | if (transferred < 0) | |
1583 | return NULL; | |
1584 | ||
1585 | if (transferred == 0) | |
1586 | return xstrdup (""); | |
1587 | ||
1588 | buffer[transferred] = 0; | |
1589 | if (strlen (buffer) < transferred) | |
1590 | warning (_("target object %d, annex %s, " | |
1591 | "contained unexpected null characters"), | |
1592 | (int) object, annex ? annex : "(none)"); | |
1593 | ||
1594 | return (char *) buffer; | |
1595 | } | |
1596 | ||
b6591e8b AC |
1597 | /* Memory transfer methods. */ |
1598 | ||
1599 | void | |
1b0ba102 | 1600 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1601 | LONGEST len) |
1602 | { | |
1603 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1604 | != len) | |
1605 | memory_error (EIO, addr); | |
1606 | } | |
1607 | ||
1608 | ULONGEST | |
1609 | get_target_memory_unsigned (struct target_ops *ops, | |
1610 | CORE_ADDR addr, int len) | |
1611 | { | |
f6519ebc | 1612 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1613 | |
1614 | gdb_assert (len <= sizeof (buf)); | |
1615 | get_target_memory (ops, addr, buf, len); | |
1616 | return extract_unsigned_integer (buf, len); | |
1617 | } | |
1618 | ||
c906108c | 1619 | static void |
fba45db2 | 1620 | target_info (char *args, int from_tty) |
c906108c SS |
1621 | { |
1622 | struct target_ops *t; | |
c906108c | 1623 | int has_all_mem = 0; |
c5aa993b | 1624 | |
c906108c | 1625 | if (symfile_objfile != NULL) |
a3f17187 | 1626 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 1627 | |
258b763a | 1628 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1629 | { |
c906108c SS |
1630 | if (!t->to_has_memory) |
1631 | continue; | |
1632 | ||
c5aa993b | 1633 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1634 | continue; |
1635 | if (has_all_mem) | |
a3f17187 | 1636 | printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n")); |
c5aa993b JM |
1637 | printf_unfiltered ("%s:\n", t->to_longname); |
1638 | (t->to_files_info) (t); | |
c906108c SS |
1639 | has_all_mem = t->to_has_all_memory; |
1640 | } | |
1641 | } | |
1642 | ||
fd79ecee DJ |
1643 | /* This function is called before any new inferior is created, e.g. |
1644 | by running a program, attaching, or connecting to a target. | |
1645 | It cleans up any state from previous invocations which might | |
1646 | change between runs. This is a subset of what target_preopen | |
1647 | resets (things which might change between targets). */ | |
1648 | ||
1649 | void | |
1650 | target_pre_inferior (int from_tty) | |
1651 | { | |
1652 | invalidate_target_mem_regions (); | |
424163ea DJ |
1653 | |
1654 | target_clear_description (); | |
fd79ecee DJ |
1655 | } |
1656 | ||
c906108c SS |
1657 | /* This is to be called by the open routine before it does |
1658 | anything. */ | |
1659 | ||
1660 | void | |
fba45db2 | 1661 | target_preopen (int from_tty) |
c906108c | 1662 | { |
c5aa993b | 1663 | dont_repeat (); |
c906108c SS |
1664 | |
1665 | if (target_has_execution) | |
c5aa993b | 1666 | { |
adf40b2e | 1667 | if (!from_tty |
e2e0b3e5 | 1668 | || query (_("A program is being debugged already. Kill it? "))) |
c5aa993b | 1669 | target_kill (); |
c906108c | 1670 | else |
8a3fe4f8 | 1671 | error (_("Program not killed.")); |
c906108c SS |
1672 | } |
1673 | ||
1674 | /* Calling target_kill may remove the target from the stack. But if | |
1675 | it doesn't (which seems like a win for UDI), remove it now. */ | |
1676 | ||
1677 | if (target_has_execution) | |
1678 | pop_target (); | |
fd79ecee DJ |
1679 | |
1680 | target_pre_inferior (from_tty); | |
c906108c SS |
1681 | } |
1682 | ||
1683 | /* Detach a target after doing deferred register stores. */ | |
1684 | ||
1685 | void | |
fba45db2 | 1686 | target_detach (char *args, int from_tty) |
c906108c | 1687 | { |
74960c60 VP |
1688 | /* If we're in breakpoints-always-inserted mode, have to |
1689 | remove them before detaching. */ | |
1690 | remove_breakpoints (); | |
1691 | ||
c906108c SS |
1692 | (current_target.to_detach) (args, from_tty); |
1693 | } | |
1694 | ||
6ad8ae5c DJ |
1695 | void |
1696 | target_disconnect (char *args, int from_tty) | |
1697 | { | |
597320e7 DJ |
1698 | struct target_ops *t; |
1699 | ||
74960c60 VP |
1700 | /* If we're in breakpoints-always-inserted mode, have to |
1701 | remove them before disconnecting. */ | |
1702 | remove_breakpoints (); | |
1703 | ||
597320e7 DJ |
1704 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
1705 | if (t->to_disconnect != NULL) | |
1706 | { | |
1707 | if (targetdebug) | |
1708 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1709 | args, from_tty); | |
1710 | t->to_disconnect (t, args, from_tty); | |
1711 | return; | |
1712 | } | |
1713 | ||
1714 | tcomplain (); | |
6ad8ae5c DJ |
1715 | } |
1716 | ||
ee057212 DJ |
1717 | /* Look through the list of possible targets for a target that can |
1718 | follow forks. */ | |
1719 | ||
1720 | int | |
1721 | target_follow_fork (int follow_child) | |
1722 | { | |
1723 | struct target_ops *t; | |
1724 | ||
1725 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1726 | { | |
1727 | if (t->to_follow_fork != NULL) | |
1728 | { | |
1729 | int retval = t->to_follow_fork (t, follow_child); | |
1730 | if (targetdebug) | |
1731 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
1732 | follow_child, retval); | |
1733 | return retval; | |
1734 | } | |
1735 | } | |
1736 | ||
1737 | /* Some target returned a fork event, but did not know how to follow it. */ | |
1738 | internal_error (__FILE__, __LINE__, | |
1739 | "could not find a target to follow fork"); | |
1740 | } | |
1741 | ||
424163ea DJ |
1742 | /* Look for a target which can describe architectural features, starting |
1743 | from TARGET. If we find one, return its description. */ | |
1744 | ||
1745 | const struct target_desc * | |
1746 | target_read_description (struct target_ops *target) | |
1747 | { | |
1748 | struct target_ops *t; | |
1749 | ||
1750 | for (t = target; t != NULL; t = t->beneath) | |
1751 | if (t->to_read_description != NULL) | |
1752 | { | |
1753 | const struct target_desc *tdesc; | |
1754 | ||
1755 | tdesc = t->to_read_description (t); | |
1756 | if (tdesc) | |
1757 | return tdesc; | |
1758 | } | |
1759 | ||
1760 | return NULL; | |
1761 | } | |
1762 | ||
8edfe269 DJ |
1763 | /* Look through the currently pushed targets. If none of them will |
1764 | be able to restart the currently running process, issue an error | |
1765 | message. */ | |
1766 | ||
1767 | void | |
1768 | target_require_runnable (void) | |
1769 | { | |
1770 | struct target_ops *t; | |
1771 | ||
1772 | for (t = target_stack; t != NULL; t = t->beneath) | |
1773 | { | |
1774 | /* If this target knows how to create a new program, then | |
1775 | assume we will still be able to after killing the current | |
1776 | one. Either killing and mourning will not pop T, or else | |
1777 | find_default_run_target will find it again. */ | |
1778 | if (t->to_create_inferior != NULL) | |
1779 | return; | |
1780 | ||
1781 | /* Do not worry about thread_stratum targets that can not | |
1782 | create inferiors. Assume they will be pushed again if | |
1783 | necessary, and continue to the process_stratum. */ | |
1784 | if (t->to_stratum == thread_stratum) | |
1785 | continue; | |
1786 | ||
1787 | error (_("\ | |
1788 | The \"%s\" target does not support \"run\". Try \"help target\" or \"continue\"."), | |
1789 | t->to_shortname); | |
1790 | } | |
1791 | ||
1792 | /* This function is only called if the target is running. In that | |
1793 | case there should have been a process_stratum target and it | |
1794 | should either know how to create inferiors, or not... */ | |
1795 | internal_error (__FILE__, __LINE__, "No targets found"); | |
1796 | } | |
1797 | ||
c906108c SS |
1798 | /* Look through the list of possible targets for a target that can |
1799 | execute a run or attach command without any other data. This is | |
1800 | used to locate the default process stratum. | |
1801 | ||
5f667f2d PA |
1802 | If DO_MESG is not NULL, the result is always valid (error() is |
1803 | called for errors); else, return NULL on error. */ | |
c906108c SS |
1804 | |
1805 | static struct target_ops * | |
fba45db2 | 1806 | find_default_run_target (char *do_mesg) |
c906108c SS |
1807 | { |
1808 | struct target_ops **t; | |
1809 | struct target_ops *runable = NULL; | |
1810 | int count; | |
1811 | ||
1812 | count = 0; | |
1813 | ||
1814 | for (t = target_structs; t < target_structs + target_struct_size; | |
1815 | ++t) | |
1816 | { | |
c5aa993b | 1817 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
1818 | { |
1819 | runable = *t; | |
1820 | ++count; | |
1821 | } | |
1822 | } | |
1823 | ||
1824 | if (count != 1) | |
5f667f2d PA |
1825 | { |
1826 | if (do_mesg) | |
1827 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
1828 | else | |
1829 | return NULL; | |
1830 | } | |
c906108c SS |
1831 | |
1832 | return runable; | |
1833 | } | |
1834 | ||
1835 | void | |
fba45db2 | 1836 | find_default_attach (char *args, int from_tty) |
c906108c SS |
1837 | { |
1838 | struct target_ops *t; | |
1839 | ||
c5aa993b | 1840 | t = find_default_run_target ("attach"); |
c906108c SS |
1841 | (t->to_attach) (args, from_tty); |
1842 | return; | |
1843 | } | |
1844 | ||
c906108c | 1845 | void |
c27cda74 AC |
1846 | find_default_create_inferior (char *exec_file, char *allargs, char **env, |
1847 | int from_tty) | |
c906108c SS |
1848 | { |
1849 | struct target_ops *t; | |
1850 | ||
c5aa993b | 1851 | t = find_default_run_target ("run"); |
c27cda74 | 1852 | (t->to_create_inferior) (exec_file, allargs, env, from_tty); |
c906108c SS |
1853 | return; |
1854 | } | |
1855 | ||
b84876c2 PA |
1856 | int |
1857 | find_default_can_async_p (void) | |
1858 | { | |
1859 | struct target_ops *t; | |
1860 | ||
5f667f2d PA |
1861 | /* This may be called before the target is pushed on the stack; |
1862 | look for the default process stratum. If there's none, gdb isn't | |
1863 | configured with a native debugger, and target remote isn't | |
1864 | connected yet. */ | |
1865 | t = find_default_run_target (NULL); | |
1866 | if (t && t->to_can_async_p) | |
b84876c2 PA |
1867 | return (t->to_can_async_p) (); |
1868 | return 0; | |
1869 | } | |
1870 | ||
1871 | int | |
1872 | find_default_is_async_p (void) | |
1873 | { | |
1874 | struct target_ops *t; | |
1875 | ||
5f667f2d PA |
1876 | /* This may be called before the target is pushed on the stack; |
1877 | look for the default process stratum. If there's none, gdb isn't | |
1878 | configured with a native debugger, and target remote isn't | |
1879 | connected yet. */ | |
1880 | t = find_default_run_target (NULL); | |
1881 | if (t && t->to_is_async_p) | |
b84876c2 PA |
1882 | return (t->to_is_async_p) (); |
1883 | return 0; | |
1884 | } | |
1885 | ||
e0d24f8d WZ |
1886 | static int |
1887 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
1888 | { | |
2a3cdf79 | 1889 | return (len <= TYPE_LENGTH (builtin_type_void_data_ptr)); |
ccaa32c7 GS |
1890 | } |
1891 | ||
5009afc5 AS |
1892 | static int |
1893 | default_watchpoint_addr_within_range (struct target_ops *target, | |
1894 | CORE_ADDR addr, | |
1895 | CORE_ADDR start, int length) | |
1896 | { | |
1897 | return addr >= start && addr < start + length; | |
1898 | } | |
1899 | ||
c906108c | 1900 | static int |
fba45db2 | 1901 | return_zero (void) |
c906108c SS |
1902 | { |
1903 | return 0; | |
1904 | } | |
1905 | ||
1906 | static int | |
fba45db2 | 1907 | return_one (void) |
c906108c SS |
1908 | { |
1909 | return 1; | |
1910 | } | |
1911 | ||
ccaa32c7 GS |
1912 | static int |
1913 | return_minus_one (void) | |
1914 | { | |
1915 | return -1; | |
1916 | } | |
1917 | ||
6426a772 JM |
1918 | /* |
1919 | * Resize the to_sections pointer. Also make sure that anyone that | |
1920 | * was holding on to an old value of it gets updated. | |
1921 | * Returns the old size. | |
1922 | */ | |
1923 | ||
1924 | int | |
1925 | target_resize_to_sections (struct target_ops *target, int num_added) | |
1926 | { | |
1927 | struct target_ops **t; | |
1928 | struct section_table *old_value; | |
1929 | int old_count; | |
1930 | ||
1931 | old_value = target->to_sections; | |
1932 | ||
1933 | if (target->to_sections) | |
1934 | { | |
1935 | old_count = target->to_sections_end - target->to_sections; | |
1936 | target->to_sections = (struct section_table *) | |
1937 | xrealloc ((char *) target->to_sections, | |
1938 | (sizeof (struct section_table)) * (num_added + old_count)); | |
1939 | } | |
1940 | else | |
1941 | { | |
1942 | old_count = 0; | |
1943 | target->to_sections = (struct section_table *) | |
1944 | xmalloc ((sizeof (struct section_table)) * num_added); | |
1945 | } | |
1946 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
1947 | ||
1948 | /* Check to see if anyone else was pointing to this structure. | |
1949 | If old_value was null, then no one was. */ | |
2bc416ba | 1950 | |
6426a772 JM |
1951 | if (old_value) |
1952 | { | |
1953 | for (t = target_structs; t < target_structs + target_struct_size; | |
1954 | ++t) | |
1955 | { | |
1956 | if ((*t)->to_sections == old_value) | |
1957 | { | |
1958 | (*t)->to_sections = target->to_sections; | |
1959 | (*t)->to_sections_end = target->to_sections_end; | |
1960 | } | |
1961 | } | |
e354df01 NW |
1962 | /* There is a flattened view of the target stack in current_target, |
1963 | so its to_sections pointer might also need updating. */ | |
1964 | if (current_target.to_sections == old_value) | |
1965 | { | |
1966 | current_target.to_sections = target->to_sections; | |
1967 | current_target.to_sections_end = target->to_sections_end; | |
1968 | } | |
6426a772 | 1969 | } |
2bc416ba | 1970 | |
6426a772 JM |
1971 | return old_count; |
1972 | ||
1973 | } | |
1974 | ||
07cd4b97 JB |
1975 | /* Remove all target sections taken from ABFD. |
1976 | ||
1977 | Scan the current target stack for targets whose section tables | |
1978 | refer to sections from BFD, and remove those sections. We use this | |
1979 | when we notice that the inferior has unloaded a shared object, for | |
1980 | example. */ | |
1981 | void | |
1982 | remove_target_sections (bfd *abfd) | |
1983 | { | |
1984 | struct target_ops **t; | |
1985 | ||
1986 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
1987 | { | |
1988 | struct section_table *src, *dest; | |
1989 | ||
1990 | dest = (*t)->to_sections; | |
1991 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
1992 | if (src->bfd != abfd) | |
1993 | { | |
1994 | /* Keep this section. */ | |
1995 | if (dest < src) *dest = *src; | |
1996 | dest++; | |
1997 | } | |
1998 | ||
1999 | /* If we've dropped any sections, resize the section table. */ | |
2000 | if (dest < src) | |
2001 | target_resize_to_sections (*t, dest - src); | |
2002 | } | |
2003 | } | |
2004 | ||
2005 | ||
2006 | ||
2007 | ||
7a292a7a SS |
2008 | /* Find a single runnable target in the stack and return it. If for |
2009 | some reason there is more than one, return NULL. */ | |
2010 | ||
2011 | struct target_ops * | |
fba45db2 | 2012 | find_run_target (void) |
7a292a7a SS |
2013 | { |
2014 | struct target_ops **t; | |
2015 | struct target_ops *runable = NULL; | |
2016 | int count; | |
c5aa993b | 2017 | |
7a292a7a | 2018 | count = 0; |
c5aa993b | 2019 | |
7a292a7a SS |
2020 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
2021 | { | |
c5aa993b | 2022 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
2023 | { |
2024 | runable = *t; | |
2025 | ++count; | |
2026 | } | |
2027 | } | |
c5aa993b | 2028 | |
7a292a7a SS |
2029 | return (count == 1 ? runable : NULL); |
2030 | } | |
2031 | ||
ed9a39eb JM |
2032 | /* Find a single core_stratum target in the list of targets and return it. |
2033 | If for some reason there is more than one, return NULL. */ | |
2034 | ||
c906108c | 2035 | struct target_ops * |
fba45db2 | 2036 | find_core_target (void) |
c906108c SS |
2037 | { |
2038 | struct target_ops **t; | |
2039 | struct target_ops *runable = NULL; | |
2040 | int count; | |
c5aa993b | 2041 | |
c906108c | 2042 | count = 0; |
c5aa993b | 2043 | |
c906108c SS |
2044 | for (t = target_structs; t < target_structs + target_struct_size; |
2045 | ++t) | |
2046 | { | |
2047 | if ((*t)->to_stratum == core_stratum) | |
2048 | { | |
2049 | runable = *t; | |
2050 | ++count; | |
2051 | } | |
2052 | } | |
c5aa993b JM |
2053 | |
2054 | return (count == 1 ? runable : NULL); | |
c906108c | 2055 | } |
ed9a39eb JM |
2056 | |
2057 | /* | |
2058 | * Find the next target down the stack from the specified target. | |
2059 | */ | |
2060 | ||
2061 | struct target_ops * | |
fba45db2 | 2062 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 2063 | { |
258b763a | 2064 | return t->beneath; |
ed9a39eb JM |
2065 | } |
2066 | ||
c906108c SS |
2067 | \f |
2068 | /* The inferior process has died. Long live the inferior! */ | |
2069 | ||
2070 | void | |
fba45db2 | 2071 | generic_mourn_inferior (void) |
c906108c SS |
2072 | { |
2073 | extern int show_breakpoint_hit_counts; | |
2074 | ||
39f77062 | 2075 | inferior_ptid = null_ptid; |
c906108c SS |
2076 | attach_flag = 0; |
2077 | breakpoint_init_inferior (inf_exited); | |
2078 | registers_changed (); | |
2079 | ||
c906108c SS |
2080 | reopen_exec_file (); |
2081 | reinit_frame_cache (); | |
2082 | ||
2083 | /* It is confusing to the user for ignore counts to stick around | |
2084 | from previous runs of the inferior. So clear them. */ | |
2085 | /* However, it is more confusing for the ignore counts to disappear when | |
2086 | using hit counts. So don't clear them if we're counting hits. */ | |
2087 | if (!show_breakpoint_hit_counts) | |
2088 | breakpoint_clear_ignore_counts (); | |
c5b739b5 | 2089 | |
9a4105ab AC |
2090 | if (deprecated_detach_hook) |
2091 | deprecated_detach_hook (); | |
c906108c SS |
2092 | } |
2093 | \f | |
8807d78b | 2094 | /* Helper function for child_wait and the derivatives of child_wait. |
c906108c SS |
2095 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our |
2096 | translation of that in OURSTATUS. */ | |
2097 | void | |
fba45db2 | 2098 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c | 2099 | { |
c906108c SS |
2100 | if (WIFEXITED (hoststatus)) |
2101 | { | |
2102 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
2103 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
2104 | } | |
2105 | else if (!WIFSTOPPED (hoststatus)) | |
2106 | { | |
2107 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
2108 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
2109 | } | |
2110 | else | |
2111 | { | |
2112 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
2113 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
2114 | } | |
2115 | } | |
2116 | \f | |
c906108c | 2117 | /* Returns zero to leave the inferior alone, one to interrupt it. */ |
507f3c78 | 2118 | int (*target_activity_function) (void); |
c906108c SS |
2119 | int target_activity_fd; |
2120 | \f | |
fd0a2a6f MK |
2121 | /* Convert a normal process ID to a string. Returns the string in a |
2122 | static buffer. */ | |
c906108c SS |
2123 | |
2124 | char * | |
39f77062 | 2125 | normal_pid_to_str (ptid_t ptid) |
c906108c | 2126 | { |
fd0a2a6f | 2127 | static char buf[32]; |
c906108c | 2128 | |
5fff8fc0 | 2129 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
2130 | return buf; |
2131 | } | |
2132 | ||
be4d1333 | 2133 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
2134 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
2135 | { | |
8a3fe4f8 | 2136 | error (_("No target.")); |
be4d1333 MS |
2137 | return 0; |
2138 | } | |
2139 | ||
2140 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
2141 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
2142 | { | |
8a3fe4f8 | 2143 | error (_("No target.")); |
be4d1333 MS |
2144 | return NULL; |
2145 | } | |
2146 | ||
c906108c SS |
2147 | /* Set up the handful of non-empty slots needed by the dummy target |
2148 | vector. */ | |
2149 | ||
2150 | static void | |
fba45db2 | 2151 | init_dummy_target (void) |
c906108c SS |
2152 | { |
2153 | dummy_target.to_shortname = "None"; | |
2154 | dummy_target.to_longname = "None"; | |
2155 | dummy_target.to_doc = ""; | |
2156 | dummy_target.to_attach = find_default_attach; | |
c906108c | 2157 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
2158 | dummy_target.to_can_async_p = find_default_can_async_p; |
2159 | dummy_target.to_is_async_p = find_default_is_async_p; | |
ed9a39eb | 2160 | dummy_target.to_pid_to_str = normal_pid_to_str; |
c906108c | 2161 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
2162 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
2163 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 2164 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
2165 | dummy_target.to_magic = OPS_MAGIC; |
2166 | } | |
c906108c | 2167 | \f |
c906108c | 2168 | static void |
fba45db2 | 2169 | debug_to_open (char *args, int from_tty) |
c906108c SS |
2170 | { |
2171 | debug_target.to_open (args, from_tty); | |
2172 | ||
96baa820 | 2173 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
2174 | } |
2175 | ||
2176 | static void | |
fba45db2 | 2177 | debug_to_close (int quitting) |
c906108c | 2178 | { |
f1c07ab0 | 2179 | target_close (&debug_target, quitting); |
96baa820 | 2180 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); |
c906108c SS |
2181 | } |
2182 | ||
f1c07ab0 AC |
2183 | void |
2184 | target_close (struct target_ops *targ, int quitting) | |
2185 | { | |
2186 | if (targ->to_xclose != NULL) | |
2187 | targ->to_xclose (targ, quitting); | |
2188 | else if (targ->to_close != NULL) | |
2189 | targ->to_close (quitting); | |
2190 | } | |
2191 | ||
c906108c | 2192 | static void |
fba45db2 | 2193 | debug_to_attach (char *args, int from_tty) |
c906108c SS |
2194 | { |
2195 | debug_target.to_attach (args, from_tty); | |
2196 | ||
96baa820 | 2197 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty); |
c906108c SS |
2198 | } |
2199 | ||
2200 | ||
2201 | static void | |
fba45db2 | 2202 | debug_to_post_attach (int pid) |
c906108c SS |
2203 | { |
2204 | debug_target.to_post_attach (pid); | |
2205 | ||
96baa820 | 2206 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
2207 | } |
2208 | ||
c906108c | 2209 | static void |
fba45db2 | 2210 | debug_to_detach (char *args, int from_tty) |
c906108c SS |
2211 | { |
2212 | debug_target.to_detach (args, from_tty); | |
2213 | ||
96baa820 | 2214 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty); |
c906108c SS |
2215 | } |
2216 | ||
c906108c | 2217 | static void |
39f77062 | 2218 | debug_to_resume (ptid_t ptid, int step, enum target_signal siggnal) |
c906108c | 2219 | { |
39f77062 | 2220 | debug_target.to_resume (ptid, step, siggnal); |
c906108c | 2221 | |
39f77062 | 2222 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid), |
c906108c SS |
2223 | step ? "step" : "continue", |
2224 | target_signal_to_name (siggnal)); | |
2225 | } | |
2226 | ||
39f77062 KB |
2227 | static ptid_t |
2228 | debug_to_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c | 2229 | { |
39f77062 | 2230 | ptid_t retval; |
c906108c | 2231 | |
39f77062 | 2232 | retval = debug_target.to_wait (ptid, status); |
c906108c | 2233 | |
96baa820 | 2234 | fprintf_unfiltered (gdb_stdlog, |
39f77062 KB |
2235 | "target_wait (%d, status) = %d, ", PIDGET (ptid), |
2236 | PIDGET (retval)); | |
96baa820 | 2237 | fprintf_unfiltered (gdb_stdlog, "status->kind = "); |
c906108c SS |
2238 | switch (status->kind) |
2239 | { | |
2240 | case TARGET_WAITKIND_EXITED: | |
96baa820 | 2241 | fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n", |
c906108c SS |
2242 | status->value.integer); |
2243 | break; | |
2244 | case TARGET_WAITKIND_STOPPED: | |
96baa820 | 2245 | fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n", |
c906108c SS |
2246 | target_signal_to_name (status->value.sig)); |
2247 | break; | |
2248 | case TARGET_WAITKIND_SIGNALLED: | |
96baa820 | 2249 | fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n", |
c906108c SS |
2250 | target_signal_to_name (status->value.sig)); |
2251 | break; | |
2252 | case TARGET_WAITKIND_LOADED: | |
96baa820 | 2253 | fprintf_unfiltered (gdb_stdlog, "loaded\n"); |
c906108c SS |
2254 | break; |
2255 | case TARGET_WAITKIND_FORKED: | |
96baa820 | 2256 | fprintf_unfiltered (gdb_stdlog, "forked\n"); |
c906108c SS |
2257 | break; |
2258 | case TARGET_WAITKIND_VFORKED: | |
96baa820 | 2259 | fprintf_unfiltered (gdb_stdlog, "vforked\n"); |
c906108c SS |
2260 | break; |
2261 | case TARGET_WAITKIND_EXECD: | |
96baa820 | 2262 | fprintf_unfiltered (gdb_stdlog, "execd\n"); |
c906108c SS |
2263 | break; |
2264 | case TARGET_WAITKIND_SPURIOUS: | |
96baa820 | 2265 | fprintf_unfiltered (gdb_stdlog, "spurious\n"); |
c906108c SS |
2266 | break; |
2267 | default: | |
96baa820 | 2268 | fprintf_unfiltered (gdb_stdlog, "unknown???\n"); |
c906108c SS |
2269 | break; |
2270 | } | |
2271 | ||
2272 | return retval; | |
2273 | } | |
2274 | ||
bf0c5130 | 2275 | static void |
56be3814 UW |
2276 | debug_print_register (const char * func, |
2277 | struct regcache *regcache, int regno) | |
bf0c5130 | 2278 | { |
f8d29908 | 2279 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
bf0c5130 | 2280 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 UW |
2281 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
2282 | + gdbarch_num_pseudo_regs (gdbarch) | |
2283 | && gdbarch_register_name (gdbarch, regno) != NULL | |
2284 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
2285 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
2286 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
2287 | else |
2288 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
2289 | if (regno >= 0) | |
2290 | { | |
f8d29908 | 2291 | int i, size = register_size (gdbarch, regno); |
d9d9c31f | 2292 | unsigned char buf[MAX_REGISTER_SIZE]; |
56be3814 | 2293 | regcache_cooked_read (regcache, regno, buf); |
bf0c5130 | 2294 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 2295 | for (i = 0; i < size; i++) |
bf0c5130 AC |
2296 | { |
2297 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
2298 | } | |
81c4a259 | 2299 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 2300 | { |
81c4a259 | 2301 | ULONGEST val = extract_unsigned_integer (buf, size); |
bf0c5130 | 2302 | fprintf_unfiltered (gdb_stdlog, " 0x%s %s", |
81c4a259 | 2303 | paddr_nz (val), paddr_d (val)); |
bf0c5130 AC |
2304 | } |
2305 | } | |
2306 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2307 | } | |
2308 | ||
c906108c | 2309 | static void |
56be3814 | 2310 | debug_to_fetch_registers (struct regcache *regcache, int regno) |
c906108c | 2311 | { |
56be3814 UW |
2312 | debug_target.to_fetch_registers (regcache, regno); |
2313 | debug_print_register ("target_fetch_registers", regcache, regno); | |
c906108c SS |
2314 | } |
2315 | ||
2316 | static void | |
56be3814 | 2317 | debug_to_store_registers (struct regcache *regcache, int regno) |
c906108c | 2318 | { |
56be3814 UW |
2319 | debug_target.to_store_registers (regcache, regno); |
2320 | debug_print_register ("target_store_registers", regcache, regno); | |
bf0c5130 | 2321 | fprintf_unfiltered (gdb_stdlog, "\n"); |
c906108c SS |
2322 | } |
2323 | ||
2324 | static void | |
316f2060 | 2325 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 2326 | { |
316f2060 | 2327 | debug_target.to_prepare_to_store (regcache); |
c906108c | 2328 | |
96baa820 | 2329 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
2330 | } |
2331 | ||
2332 | static int | |
961cb7b5 | 2333 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
2334 | int write, struct mem_attrib *attrib, |
2335 | struct target_ops *target) | |
c906108c SS |
2336 | { |
2337 | int retval; | |
2338 | ||
c8e73a31 AC |
2339 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
2340 | attrib, target); | |
c906108c | 2341 | |
96baa820 | 2342 | fprintf_unfiltered (gdb_stdlog, |
c906108c | 2343 | "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d", |
c5aa993b | 2344 | (unsigned int) memaddr, /* possable truncate long long */ |
c906108c SS |
2345 | len, write ? "write" : "read", retval); |
2346 | ||
c906108c SS |
2347 | if (retval > 0) |
2348 | { | |
2349 | int i; | |
2350 | ||
96baa820 | 2351 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
2352 | for (i = 0; i < retval; i++) |
2353 | { | |
2354 | if ((((long) &(myaddr[i])) & 0xf) == 0) | |
333dabeb DJ |
2355 | { |
2356 | if (targetdebug < 2 && i > 0) | |
2357 | { | |
2358 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
2359 | break; | |
2360 | } | |
2361 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2362 | } | |
2bc416ba | 2363 | |
96baa820 | 2364 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
2365 | } |
2366 | } | |
2367 | ||
96baa820 | 2368 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
2369 | |
2370 | return retval; | |
2371 | } | |
2372 | ||
2373 | static void | |
fba45db2 | 2374 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
2375 | { |
2376 | debug_target.to_files_info (target); | |
2377 | ||
96baa820 | 2378 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
2379 | } |
2380 | ||
2381 | static int | |
8181d85f | 2382 | debug_to_insert_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2383 | { |
2384 | int retval; | |
2385 | ||
8181d85f | 2386 | retval = debug_target.to_insert_breakpoint (bp_tgt); |
c906108c | 2387 | |
96baa820 | 2388 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2389 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2390 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2391 | (unsigned long) retval); |
c906108c SS |
2392 | return retval; |
2393 | } | |
2394 | ||
2395 | static int | |
8181d85f | 2396 | debug_to_remove_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2397 | { |
2398 | int retval; | |
2399 | ||
8181d85f | 2400 | retval = debug_target.to_remove_breakpoint (bp_tgt); |
c906108c | 2401 | |
96baa820 | 2402 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2403 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2404 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2405 | (unsigned long) retval); |
c906108c SS |
2406 | return retval; |
2407 | } | |
2408 | ||
ccaa32c7 GS |
2409 | static int |
2410 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2411 | { | |
2412 | int retval; | |
2413 | ||
2414 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2415 | ||
2416 | fprintf_unfiltered (gdb_stdlog, | |
2417 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2418 | (unsigned long) type, | |
2419 | (unsigned long) cnt, | |
2420 | (unsigned long) from_tty, | |
2421 | (unsigned long) retval); | |
2422 | return retval; | |
2423 | } | |
2424 | ||
e0d24f8d WZ |
2425 | static int |
2426 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2427 | { | |
2428 | CORE_ADDR retval; | |
2429 | ||
2430 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
2431 | ||
2432 | fprintf_unfiltered (gdb_stdlog, | |
2433 | "TARGET_REGION_OK_FOR_HW_WATCHPOINT (%ld, %ld) = 0x%lx\n", | |
2434 | (unsigned long) addr, | |
2435 | (unsigned long) len, | |
2436 | (unsigned long) retval); | |
2437 | return retval; | |
2438 | } | |
2439 | ||
ccaa32c7 GS |
2440 | static int |
2441 | debug_to_stopped_by_watchpoint (void) | |
2442 | { | |
2443 | int retval; | |
2444 | ||
2445 | retval = debug_target.to_stopped_by_watchpoint (); | |
2446 | ||
2447 | fprintf_unfiltered (gdb_stdlog, | |
2448 | "STOPPED_BY_WATCHPOINT () = %ld\n", | |
2449 | (unsigned long) retval); | |
2450 | return retval; | |
2451 | } | |
2452 | ||
4aa7a7f5 JJ |
2453 | static int |
2454 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 2455 | { |
4aa7a7f5 | 2456 | int retval; |
ccaa32c7 | 2457 | |
4aa7a7f5 | 2458 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
2459 | |
2460 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
2461 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
2462 | (unsigned long)*addr, | |
2463 | (unsigned long)retval); | |
ccaa32c7 GS |
2464 | return retval; |
2465 | } | |
2466 | ||
5009afc5 AS |
2467 | static int |
2468 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
2469 | CORE_ADDR addr, | |
2470 | CORE_ADDR start, int length) | |
2471 | { | |
2472 | int retval; | |
2473 | ||
2474 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
2475 | start, length); | |
2476 | ||
2477 | fprintf_filtered (gdb_stdlog, | |
2478 | "target_watchpoint_addr_within_range (0x%lx, 0x%lx, %d) = %d\n", | |
2479 | (unsigned long) addr, (unsigned long) start, length, | |
2480 | retval); | |
2481 | return retval; | |
2482 | } | |
2483 | ||
ccaa32c7 | 2484 | static int |
8181d85f | 2485 | debug_to_insert_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2486 | { |
2487 | int retval; | |
2488 | ||
8181d85f | 2489 | retval = debug_target.to_insert_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2490 | |
2491 | fprintf_unfiltered (gdb_stdlog, | |
2492 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2493 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2494 | (unsigned long) retval); |
2495 | return retval; | |
2496 | } | |
2497 | ||
2498 | static int | |
8181d85f | 2499 | debug_to_remove_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2500 | { |
2501 | int retval; | |
2502 | ||
8181d85f | 2503 | retval = debug_target.to_remove_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2504 | |
2505 | fprintf_unfiltered (gdb_stdlog, | |
2506 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2507 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2508 | (unsigned long) retval); |
2509 | return retval; | |
2510 | } | |
2511 | ||
2512 | static int | |
2513 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2514 | { | |
2515 | int retval; | |
2516 | ||
2517 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2518 | ||
2519 | fprintf_unfiltered (gdb_stdlog, | |
2520 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2521 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2522 | return retval; | |
2523 | } | |
2524 | ||
2525 | static int | |
2526 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2527 | { | |
2528 | int retval; | |
2529 | ||
ecde4882 | 2530 | retval = debug_target.to_remove_watchpoint (addr, len, type); |
ccaa32c7 GS |
2531 | |
2532 | fprintf_unfiltered (gdb_stdlog, | |
ecde4882 | 2533 | "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n", |
ccaa32c7 GS |
2534 | (unsigned long) addr, len, type, (unsigned long) retval); |
2535 | return retval; | |
2536 | } | |
2537 | ||
c906108c | 2538 | static void |
fba45db2 | 2539 | debug_to_terminal_init (void) |
c906108c SS |
2540 | { |
2541 | debug_target.to_terminal_init (); | |
2542 | ||
96baa820 | 2543 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
2544 | } |
2545 | ||
2546 | static void | |
fba45db2 | 2547 | debug_to_terminal_inferior (void) |
c906108c SS |
2548 | { |
2549 | debug_target.to_terminal_inferior (); | |
2550 | ||
96baa820 | 2551 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
2552 | } |
2553 | ||
2554 | static void | |
fba45db2 | 2555 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
2556 | { |
2557 | debug_target.to_terminal_ours_for_output (); | |
2558 | ||
96baa820 | 2559 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
2560 | } |
2561 | ||
2562 | static void | |
fba45db2 | 2563 | debug_to_terminal_ours (void) |
c906108c SS |
2564 | { |
2565 | debug_target.to_terminal_ours (); | |
2566 | ||
96baa820 | 2567 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
2568 | } |
2569 | ||
a790ad35 SC |
2570 | static void |
2571 | debug_to_terminal_save_ours (void) | |
2572 | { | |
2573 | debug_target.to_terminal_save_ours (); | |
2574 | ||
2575 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
2576 | } | |
2577 | ||
c906108c | 2578 | static void |
fba45db2 | 2579 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
2580 | { |
2581 | debug_target.to_terminal_info (arg, from_tty); | |
2582 | ||
96baa820 | 2583 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
2584 | from_tty); |
2585 | } | |
2586 | ||
2587 | static void | |
fba45db2 | 2588 | debug_to_kill (void) |
c906108c SS |
2589 | { |
2590 | debug_target.to_kill (); | |
2591 | ||
96baa820 | 2592 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); |
c906108c SS |
2593 | } |
2594 | ||
2595 | static void | |
fba45db2 | 2596 | debug_to_load (char *args, int from_tty) |
c906108c SS |
2597 | { |
2598 | debug_target.to_load (args, from_tty); | |
2599 | ||
96baa820 | 2600 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
2601 | } |
2602 | ||
2603 | static int | |
fba45db2 | 2604 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
2605 | { |
2606 | int retval; | |
2607 | ||
2608 | retval = debug_target.to_lookup_symbol (name, addrp); | |
2609 | ||
96baa820 | 2610 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
2611 | |
2612 | return retval; | |
2613 | } | |
2614 | ||
2615 | static void | |
c27cda74 AC |
2616 | debug_to_create_inferior (char *exec_file, char *args, char **env, |
2617 | int from_tty) | |
c906108c | 2618 | { |
c27cda74 | 2619 | debug_target.to_create_inferior (exec_file, args, env, from_tty); |
c906108c | 2620 | |
c27cda74 AC |
2621 | fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx, %d)\n", |
2622 | exec_file, args, from_tty); | |
c906108c SS |
2623 | } |
2624 | ||
2625 | static void | |
39f77062 | 2626 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 2627 | { |
39f77062 | 2628 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 2629 | |
96baa820 | 2630 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 2631 | PIDGET (ptid)); |
c906108c SS |
2632 | } |
2633 | ||
2634 | static void | |
fba45db2 | 2635 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
2636 | { |
2637 | debug_target.to_acknowledge_created_inferior (pid); | |
2638 | ||
96baa820 | 2639 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
2640 | pid); |
2641 | } | |
2642 | ||
fa113d1a | 2643 | static void |
fba45db2 | 2644 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 2645 | { |
fa113d1a | 2646 | debug_target.to_insert_fork_catchpoint (pid); |
c906108c | 2647 | |
fa113d1a AC |
2648 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n", |
2649 | pid); | |
c906108c SS |
2650 | } |
2651 | ||
2652 | static int | |
fba45db2 | 2653 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 2654 | { |
c5aa993b | 2655 | int retval; |
c906108c SS |
2656 | |
2657 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
2658 | ||
96baa820 | 2659 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 2660 | pid, retval); |
c906108c SS |
2661 | |
2662 | return retval; | |
2663 | } | |
2664 | ||
fa113d1a | 2665 | static void |
fba45db2 | 2666 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 2667 | { |
fa113d1a | 2668 | debug_target.to_insert_vfork_catchpoint (pid); |
c906108c | 2669 | |
fa113d1a AC |
2670 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n", |
2671 | pid); | |
c906108c SS |
2672 | } |
2673 | ||
2674 | static int | |
fba45db2 | 2675 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 2676 | { |
c5aa993b | 2677 | int retval; |
c906108c SS |
2678 | |
2679 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
2680 | ||
96baa820 | 2681 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 2682 | pid, retval); |
c906108c SS |
2683 | |
2684 | return retval; | |
2685 | } | |
2686 | ||
fa113d1a | 2687 | static void |
fba45db2 | 2688 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 2689 | { |
fa113d1a | 2690 | debug_target.to_insert_exec_catchpoint (pid); |
c906108c | 2691 | |
fa113d1a AC |
2692 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n", |
2693 | pid); | |
c906108c SS |
2694 | } |
2695 | ||
2696 | static int | |
fba45db2 | 2697 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 2698 | { |
c5aa993b | 2699 | int retval; |
c906108c SS |
2700 | |
2701 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
2702 | ||
96baa820 | 2703 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 2704 | pid, retval); |
c906108c SS |
2705 | |
2706 | return retval; | |
2707 | } | |
2708 | ||
c906108c | 2709 | static int |
fba45db2 | 2710 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 2711 | { |
c5aa993b | 2712 | int has_exited; |
c906108c SS |
2713 | |
2714 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
2715 | ||
96baa820 | 2716 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 2717 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
2718 | |
2719 | return has_exited; | |
2720 | } | |
2721 | ||
2722 | static void | |
fba45db2 | 2723 | debug_to_mourn_inferior (void) |
c906108c SS |
2724 | { |
2725 | debug_target.to_mourn_inferior (); | |
2726 | ||
96baa820 | 2727 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); |
c906108c SS |
2728 | } |
2729 | ||
2730 | static int | |
fba45db2 | 2731 | debug_to_can_run (void) |
c906108c SS |
2732 | { |
2733 | int retval; | |
2734 | ||
2735 | retval = debug_target.to_can_run (); | |
2736 | ||
96baa820 | 2737 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
2738 | |
2739 | return retval; | |
2740 | } | |
2741 | ||
2742 | static void | |
39f77062 | 2743 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 2744 | { |
39f77062 | 2745 | debug_target.to_notice_signals (ptid); |
c906108c | 2746 | |
39f77062 KB |
2747 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
2748 | PIDGET (ptid)); | |
c906108c SS |
2749 | } |
2750 | ||
2751 | static int | |
39f77062 | 2752 | debug_to_thread_alive (ptid_t ptid) |
c906108c SS |
2753 | { |
2754 | int retval; | |
2755 | ||
39f77062 | 2756 | retval = debug_target.to_thread_alive (ptid); |
c906108c | 2757 | |
96baa820 | 2758 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", |
39f77062 | 2759 | PIDGET (ptid), retval); |
c906108c SS |
2760 | |
2761 | return retval; | |
2762 | } | |
2763 | ||
0d06e24b | 2764 | static void |
fba45db2 | 2765 | debug_to_find_new_threads (void) |
0d06e24b JM |
2766 | { |
2767 | debug_target.to_find_new_threads (); | |
2768 | ||
2769 | fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog); | |
2770 | } | |
2771 | ||
c906108c | 2772 | static void |
fba45db2 | 2773 | debug_to_stop (void) |
c906108c SS |
2774 | { |
2775 | debug_target.to_stop (); | |
2776 | ||
96baa820 | 2777 | fprintf_unfiltered (gdb_stdlog, "target_stop ()\n"); |
c906108c SS |
2778 | } |
2779 | ||
96baa820 JM |
2780 | static void |
2781 | debug_to_rcmd (char *command, | |
d9fcf2fb | 2782 | struct ui_file *outbuf) |
96baa820 JM |
2783 | { |
2784 | debug_target.to_rcmd (command, outbuf); | |
2785 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
2786 | } | |
2787 | ||
c906108c | 2788 | static char * |
fba45db2 | 2789 | debug_to_pid_to_exec_file (int pid) |
c906108c | 2790 | { |
c5aa993b | 2791 | char *exec_file; |
c906108c SS |
2792 | |
2793 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
2794 | ||
96baa820 | 2795 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 2796 | pid, exec_file); |
c906108c SS |
2797 | |
2798 | return exec_file; | |
2799 | } | |
2800 | ||
c906108c | 2801 | static void |
fba45db2 | 2802 | setup_target_debug (void) |
c906108c SS |
2803 | { |
2804 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
2805 | ||
2806 | current_target.to_open = debug_to_open; | |
2807 | current_target.to_close = debug_to_close; | |
2808 | current_target.to_attach = debug_to_attach; | |
2809 | current_target.to_post_attach = debug_to_post_attach; | |
c906108c | 2810 | current_target.to_detach = debug_to_detach; |
c906108c SS |
2811 | current_target.to_resume = debug_to_resume; |
2812 | current_target.to_wait = debug_to_wait; | |
c906108c SS |
2813 | current_target.to_fetch_registers = debug_to_fetch_registers; |
2814 | current_target.to_store_registers = debug_to_store_registers; | |
2815 | current_target.to_prepare_to_store = debug_to_prepare_to_store; | |
c8e73a31 | 2816 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
2817 | current_target.to_files_info = debug_to_files_info; |
2818 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
2819 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
2820 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
2821 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
2822 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
2823 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
2824 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
2825 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
2826 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
5009afc5 | 2827 | current_target.to_watchpoint_addr_within_range = debug_to_watchpoint_addr_within_range; |
e0d24f8d | 2828 | current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint; |
c906108c SS |
2829 | current_target.to_terminal_init = debug_to_terminal_init; |
2830 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
2831 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
2832 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 2833 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c SS |
2834 | current_target.to_terminal_info = debug_to_terminal_info; |
2835 | current_target.to_kill = debug_to_kill; | |
2836 | current_target.to_load = debug_to_load; | |
2837 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
2838 | current_target.to_create_inferior = debug_to_create_inferior; | |
2839 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; | |
2840 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
2841 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
2842 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
2843 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
2844 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
2845 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
2846 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c SS |
2847 | current_target.to_has_exited = debug_to_has_exited; |
2848 | current_target.to_mourn_inferior = debug_to_mourn_inferior; | |
2849 | current_target.to_can_run = debug_to_can_run; | |
2850 | current_target.to_notice_signals = debug_to_notice_signals; | |
2851 | current_target.to_thread_alive = debug_to_thread_alive; | |
0d06e24b | 2852 | current_target.to_find_new_threads = debug_to_find_new_threads; |
c906108c | 2853 | current_target.to_stop = debug_to_stop; |
96baa820 | 2854 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 2855 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c906108c | 2856 | } |
c906108c | 2857 | \f |
c5aa993b JM |
2858 | |
2859 | static char targ_desc[] = | |
2860 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
2861 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
2862 | core-file, and process, if any), as well as the symbol file name."; | |
2863 | ||
96baa820 JM |
2864 | static void |
2865 | do_monitor_command (char *cmd, | |
2866 | int from_tty) | |
2867 | { | |
2b5fe715 AC |
2868 | if ((current_target.to_rcmd |
2869 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 2870 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
2871 | && (debug_target.to_rcmd |
2872 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 2873 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
2874 | target_rcmd (cmd, gdb_stdtarg); |
2875 | } | |
2876 | ||
87680a14 JB |
2877 | /* Print the name of each layers of our target stack. */ |
2878 | ||
2879 | static void | |
2880 | maintenance_print_target_stack (char *cmd, int from_tty) | |
2881 | { | |
2882 | struct target_ops *t; | |
2883 | ||
2884 | printf_filtered (_("The current target stack is:\n")); | |
2885 | ||
2886 | for (t = target_stack; t != NULL; t = t->beneath) | |
2887 | { | |
2888 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
2889 | } | |
2890 | } | |
2891 | ||
c906108c | 2892 | void |
fba45db2 | 2893 | initialize_targets (void) |
c906108c SS |
2894 | { |
2895 | init_dummy_target (); | |
2896 | push_target (&dummy_target); | |
2897 | ||
2898 | add_info ("target", target_info, targ_desc); | |
2899 | add_info ("files", target_info, targ_desc); | |
2900 | ||
85c07804 AC |
2901 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
2902 | Set target debugging."), _("\ | |
2903 | Show target debugging."), _("\ | |
333dabeb DJ |
2904 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
2905 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
2906 | command."), |
2907 | NULL, | |
920d2a44 | 2908 | show_targetdebug, |
85c07804 | 2909 | &setdebuglist, &showdebuglist); |
3a11626d | 2910 | |
2bc416ba | 2911 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
2912 | &trust_readonly, _("\ |
2913 | Set mode for reading from readonly sections."), _("\ | |
2914 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
2915 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
2916 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 2917 | result in significant performance improvement for remote targets."), |
2c5b56ce | 2918 | NULL, |
920d2a44 | 2919 | show_trust_readonly, |
e707bbc2 | 2920 | &setlist, &showlist); |
96baa820 JM |
2921 | |
2922 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 2923 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 2924 | |
87680a14 JB |
2925 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
2926 | _("Print the name of each layer of the internal target stack."), | |
2927 | &maintenanceprintlist); | |
2928 | ||
8add0441 | 2929 | target_dcache = dcache_init (); |
c906108c | 2930 | } |