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, |
0fb0cc75 | 4 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
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" |
e1ac3328 | 42 | #include "gdbthread.h" |
b9db4ced | 43 | #include "solib.h" |
c906108c | 44 | |
a14ed312 | 45 | static void target_info (char *, int); |
c906108c | 46 | |
a14ed312 | 47 | static void kill_or_be_killed (int); |
c906108c | 48 | |
a14ed312 | 49 | static void default_terminal_info (char *, int); |
c906108c | 50 | |
5009afc5 AS |
51 | static int default_watchpoint_addr_within_range (struct target_ops *, |
52 | CORE_ADDR, CORE_ADDR, int); | |
53 | ||
e0d24f8d WZ |
54 | static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
55 | ||
a14ed312 | 56 | static int nosymbol (char *, CORE_ADDR *); |
c906108c | 57 | |
4ecb6f27 | 58 | static void tcomplain (void) ATTR_NORETURN; |
c906108c | 59 | |
a14ed312 | 60 | static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *); |
c906108c | 61 | |
a14ed312 | 62 | static int return_zero (void); |
c906108c | 63 | |
a14ed312 | 64 | static int return_one (void); |
c906108c | 65 | |
ccaa32c7 GS |
66 | static int return_minus_one (void); |
67 | ||
a14ed312 | 68 | void target_ignore (void); |
c906108c | 69 | |
a14ed312 | 70 | static void target_command (char *, int); |
c906108c | 71 | |
a14ed312 | 72 | static struct target_ops *find_default_run_target (char *); |
c906108c | 73 | |
a14ed312 | 74 | static void nosupport_runtime (void); |
392a587b | 75 | |
4b8a223f | 76 | static LONGEST default_xfer_partial (struct target_ops *ops, |
0088c768 | 77 | enum target_object object, |
1b0ba102 AC |
78 | const char *annex, gdb_byte *readbuf, |
79 | const gdb_byte *writebuf, | |
8aa91c1e | 80 | ULONGEST offset, LONGEST len); |
0088c768 | 81 | |
cf7a04e8 DJ |
82 | static LONGEST current_xfer_partial (struct target_ops *ops, |
83 | enum target_object object, | |
84 | const char *annex, gdb_byte *readbuf, | |
85 | const gdb_byte *writebuf, | |
86 | ULONGEST offset, LONGEST len); | |
c906108c | 87 | |
cf7a04e8 DJ |
88 | static LONGEST target_xfer_partial (struct target_ops *ops, |
89 | enum target_object object, | |
90 | const char *annex, | |
91 | void *readbuf, const void *writebuf, | |
92 | ULONGEST offset, LONGEST len); | |
c906108c | 93 | |
a14ed312 | 94 | static void init_dummy_target (void); |
c906108c | 95 | |
aa869812 AC |
96 | static struct target_ops debug_target; |
97 | ||
a14ed312 | 98 | static void debug_to_open (char *, int); |
c906108c | 99 | |
316f2060 | 100 | static void debug_to_prepare_to_store (struct regcache *); |
c906108c | 101 | |
a14ed312 | 102 | static void debug_to_files_info (struct target_ops *); |
c906108c | 103 | |
8181d85f | 104 | static int debug_to_insert_breakpoint (struct bp_target_info *); |
c906108c | 105 | |
8181d85f | 106 | static int debug_to_remove_breakpoint (struct bp_target_info *); |
c906108c | 107 | |
ccaa32c7 GS |
108 | static int debug_to_can_use_hw_breakpoint (int, int, int); |
109 | ||
8181d85f | 110 | static int debug_to_insert_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 | 111 | |
8181d85f | 112 | static int debug_to_remove_hw_breakpoint (struct bp_target_info *); |
ccaa32c7 GS |
113 | |
114 | static int debug_to_insert_watchpoint (CORE_ADDR, int, int); | |
115 | ||
116 | static int debug_to_remove_watchpoint (CORE_ADDR, int, int); | |
117 | ||
118 | static int debug_to_stopped_by_watchpoint (void); | |
119 | ||
4aa7a7f5 | 120 | static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *); |
ccaa32c7 | 121 | |
5009afc5 AS |
122 | static int debug_to_watchpoint_addr_within_range (struct target_ops *, |
123 | CORE_ADDR, CORE_ADDR, int); | |
124 | ||
e0d24f8d WZ |
125 | static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int); |
126 | ||
a14ed312 | 127 | static void debug_to_terminal_init (void); |
c906108c | 128 | |
a14ed312 | 129 | static void debug_to_terminal_inferior (void); |
c906108c | 130 | |
a14ed312 | 131 | static void debug_to_terminal_ours_for_output (void); |
c906108c | 132 | |
a790ad35 SC |
133 | static void debug_to_terminal_save_ours (void); |
134 | ||
a14ed312 | 135 | static void debug_to_terminal_ours (void); |
c906108c | 136 | |
a14ed312 | 137 | static void debug_to_terminal_info (char *, int); |
c906108c | 138 | |
a14ed312 | 139 | static void debug_to_load (char *, int); |
c906108c | 140 | |
a14ed312 | 141 | static int debug_to_lookup_symbol (char *, CORE_ADDR *); |
c906108c | 142 | |
a14ed312 | 143 | static int debug_to_can_run (void); |
c906108c | 144 | |
39f77062 | 145 | static void debug_to_notice_signals (ptid_t); |
c906108c | 146 | |
94cc34af | 147 | static void debug_to_stop (ptid_t); |
c906108c | 148 | |
5ac10fd1 AC |
149 | /* NOTE: cagney/2004-09-29: Many targets reference this variable in |
150 | wierd and mysterious ways. Putting the variable here lets those | |
151 | wierd and mysterious ways keep building while they are being | |
152 | converted to the inferior inheritance structure. */ | |
1df84f13 | 153 | struct target_ops deprecated_child_ops; |
5ac10fd1 | 154 | |
c906108c | 155 | /* Pointer to array of target architecture structures; the size of the |
2bc416ba | 156 | array; the current index into the array; the allocated size of the |
c906108c SS |
157 | array. */ |
158 | struct target_ops **target_structs; | |
159 | unsigned target_struct_size; | |
160 | unsigned target_struct_index; | |
161 | unsigned target_struct_allocsize; | |
162 | #define DEFAULT_ALLOCSIZE 10 | |
163 | ||
164 | /* The initial current target, so that there is always a semi-valid | |
165 | current target. */ | |
166 | ||
167 | static struct target_ops dummy_target; | |
168 | ||
169 | /* Top of target stack. */ | |
170 | ||
258b763a | 171 | static struct target_ops *target_stack; |
c906108c SS |
172 | |
173 | /* The target structure we are currently using to talk to a process | |
174 | or file or whatever "inferior" we have. */ | |
175 | ||
176 | struct target_ops current_target; | |
177 | ||
178 | /* Command list for target. */ | |
179 | ||
180 | static struct cmd_list_element *targetlist = NULL; | |
181 | ||
cf7a04e8 DJ |
182 | /* Nonzero if we should trust readonly sections from the |
183 | executable when reading memory. */ | |
184 | ||
185 | static int trust_readonly = 0; | |
186 | ||
8defab1a DJ |
187 | /* Nonzero if we should show true memory content including |
188 | memory breakpoint inserted by gdb. */ | |
189 | ||
190 | static int show_memory_breakpoints = 0; | |
191 | ||
c906108c SS |
192 | /* Non-zero if we want to see trace of target level stuff. */ |
193 | ||
194 | static int targetdebug = 0; | |
920d2a44 AC |
195 | static void |
196 | show_targetdebug (struct ui_file *file, int from_tty, | |
197 | struct cmd_list_element *c, const char *value) | |
198 | { | |
199 | fprintf_filtered (file, _("Target debugging is %s.\n"), value); | |
200 | } | |
c906108c | 201 | |
a14ed312 | 202 | static void setup_target_debug (void); |
c906108c | 203 | |
4930751a C |
204 | DCACHE *target_dcache; |
205 | ||
c906108c SS |
206 | /* The user just typed 'target' without the name of a target. */ |
207 | ||
c906108c | 208 | static void |
fba45db2 | 209 | target_command (char *arg, int from_tty) |
c906108c SS |
210 | { |
211 | fputs_filtered ("Argument required (target name). Try `help target'\n", | |
212 | gdb_stdout); | |
213 | } | |
214 | ||
215 | /* Add a possible target architecture to the list. */ | |
216 | ||
217 | void | |
fba45db2 | 218 | add_target (struct target_ops *t) |
c906108c | 219 | { |
0088c768 | 220 | /* Provide default values for all "must have" methods. */ |
0b603eba AC |
221 | if (t->to_xfer_partial == NULL) |
222 | t->to_xfer_partial = default_xfer_partial; | |
0088c768 | 223 | |
c906108c SS |
224 | if (!target_structs) |
225 | { | |
226 | target_struct_allocsize = DEFAULT_ALLOCSIZE; | |
227 | target_structs = (struct target_ops **) xmalloc | |
228 | (target_struct_allocsize * sizeof (*target_structs)); | |
229 | } | |
230 | if (target_struct_size >= target_struct_allocsize) | |
231 | { | |
232 | target_struct_allocsize *= 2; | |
233 | target_structs = (struct target_ops **) | |
c5aa993b JM |
234 | xrealloc ((char *) target_structs, |
235 | target_struct_allocsize * sizeof (*target_structs)); | |
c906108c SS |
236 | } |
237 | target_structs[target_struct_size++] = t; | |
c906108c SS |
238 | |
239 | if (targetlist == NULL) | |
1bedd215 AC |
240 | add_prefix_cmd ("target", class_run, target_command, _("\ |
241 | Connect to a target machine or process.\n\ | |
c906108c SS |
242 | The first argument is the type or protocol of the target machine.\n\ |
243 | Remaining arguments are interpreted by the target protocol. For more\n\ | |
244 | information on the arguments for a particular protocol, type\n\ | |
1bedd215 | 245 | `help target ' followed by the protocol name."), |
c906108c SS |
246 | &targetlist, "target ", 0, &cmdlist); |
247 | add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist); | |
248 | } | |
249 | ||
250 | /* Stub functions */ | |
251 | ||
252 | void | |
fba45db2 | 253 | target_ignore (void) |
c906108c SS |
254 | { |
255 | } | |
256 | ||
7d85a9c0 JB |
257 | void |
258 | target_kill (void) | |
259 | { | |
260 | struct target_ops *t; | |
261 | ||
262 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
263 | if (t->to_kill != NULL) | |
264 | { | |
265 | if (targetdebug) | |
266 | fprintf_unfiltered (gdb_stdlog, "target_kill ()\n"); | |
267 | ||
268 | t->to_kill (t); | |
269 | return; | |
270 | } | |
271 | ||
272 | noprocess (); | |
273 | } | |
274 | ||
11cf8741 JM |
275 | void |
276 | target_load (char *arg, int from_tty) | |
277 | { | |
4930751a | 278 | dcache_invalidate (target_dcache); |
11cf8741 JM |
279 | (*current_target.to_load) (arg, from_tty); |
280 | } | |
281 | ||
947b8855 PA |
282 | void |
283 | target_create_inferior (char *exec_file, char *args, | |
284 | char **env, int from_tty) | |
136d6dae VP |
285 | { |
286 | struct target_ops *t; | |
287 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
288 | { | |
289 | if (t->to_create_inferior != NULL) | |
290 | { | |
291 | t->to_create_inferior (t, exec_file, args, env, from_tty); | |
947b8855 PA |
292 | if (targetdebug) |
293 | fprintf_unfiltered (gdb_stdlog, | |
294 | "target_create_inferior (%s, %s, xxx, %d)\n", | |
295 | exec_file, args, from_tty); | |
136d6dae VP |
296 | return; |
297 | } | |
298 | } | |
299 | ||
300 | internal_error (__FILE__, __LINE__, | |
301 | "could not find a target to create inferior"); | |
302 | } | |
303 | ||
d9d2d8b6 PA |
304 | void |
305 | target_terminal_inferior (void) | |
306 | { | |
307 | /* A background resume (``run&'') should leave GDB in control of the | |
308 | terminal. */ | |
309 | if (target_is_async_p () && !sync_execution) | |
310 | return; | |
311 | ||
312 | /* If GDB is resuming the inferior in the foreground, install | |
313 | inferior's terminal modes. */ | |
314 | (*current_target.to_terminal_inferior) (); | |
315 | } | |
136d6dae | 316 | |
c906108c | 317 | static int |
fba45db2 KB |
318 | nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
319 | struct target_ops *t) | |
c906108c | 320 | { |
c5aa993b JM |
321 | errno = EIO; /* Can't read/write this location */ |
322 | return 0; /* No bytes handled */ | |
c906108c SS |
323 | } |
324 | ||
325 | static void | |
fba45db2 | 326 | tcomplain (void) |
c906108c | 327 | { |
8a3fe4f8 | 328 | error (_("You can't do that when your target is `%s'"), |
c906108c SS |
329 | current_target.to_shortname); |
330 | } | |
331 | ||
332 | void | |
fba45db2 | 333 | noprocess (void) |
c906108c | 334 | { |
8a3fe4f8 | 335 | error (_("You can't do that without a process to debug.")); |
c906108c SS |
336 | } |
337 | ||
c906108c | 338 | static int |
fba45db2 | 339 | nosymbol (char *name, CORE_ADDR *addrp) |
c906108c | 340 | { |
c5aa993b | 341 | return 1; /* Symbol does not exist in target env */ |
c906108c SS |
342 | } |
343 | ||
392a587b | 344 | static void |
fba45db2 | 345 | nosupport_runtime (void) |
c906108c | 346 | { |
39f77062 | 347 | if (ptid_equal (inferior_ptid, null_ptid)) |
c906108c SS |
348 | noprocess (); |
349 | else | |
8a3fe4f8 | 350 | error (_("No run-time support for this")); |
c906108c SS |
351 | } |
352 | ||
353 | ||
c906108c | 354 | static void |
fba45db2 | 355 | default_terminal_info (char *args, int from_tty) |
c906108c | 356 | { |
a3f17187 | 357 | printf_unfiltered (_("No saved terminal information.\n")); |
c906108c SS |
358 | } |
359 | ||
360 | /* This is the default target_create_inferior and target_attach function. | |
361 | If the current target is executing, it asks whether to kill it off. | |
362 | If this function returns without calling error(), it has killed off | |
363 | the target, and the operation should be attempted. */ | |
364 | ||
365 | static void | |
fba45db2 | 366 | kill_or_be_killed (int from_tty) |
c906108c SS |
367 | { |
368 | if (target_has_execution) | |
369 | { | |
a3f17187 | 370 | printf_unfiltered (_("You are already running a program:\n")); |
c906108c | 371 | target_files_info (); |
9e2f0ad4 | 372 | if (query (_("Kill it? "))) |
c5aa993b JM |
373 | { |
374 | target_kill (); | |
375 | if (target_has_execution) | |
8a3fe4f8 | 376 | error (_("Killing the program did not help.")); |
c5aa993b JM |
377 | return; |
378 | } | |
379 | else | |
380 | { | |
8a3fe4f8 | 381 | error (_("Program not killed.")); |
c5aa993b | 382 | } |
c906108c | 383 | } |
c5aa993b | 384 | tcomplain (); |
c906108c SS |
385 | } |
386 | ||
0ef643c8 JB |
387 | /* A default implementation for the to_get_ada_task_ptid target method. |
388 | ||
389 | This function builds the PTID by using both LWP and TID as part of | |
390 | the PTID lwp and tid elements. The pid used is the pid of the | |
391 | inferior_ptid. */ | |
392 | ||
2c0b251b | 393 | static ptid_t |
0ef643c8 JB |
394 | default_get_ada_task_ptid (long lwp, long tid) |
395 | { | |
396 | return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid); | |
397 | } | |
398 | ||
7998dfc3 AC |
399 | /* Go through the target stack from top to bottom, copying over zero |
400 | entries in current_target, then filling in still empty entries. In | |
401 | effect, we are doing class inheritance through the pushed target | |
402 | vectors. | |
403 | ||
404 | NOTE: cagney/2003-10-17: The problem with this inheritance, as it | |
405 | is currently implemented, is that it discards any knowledge of | |
406 | which target an inherited method originally belonged to. | |
407 | Consequently, new new target methods should instead explicitly and | |
408 | locally search the target stack for the target that can handle the | |
409 | request. */ | |
c906108c SS |
410 | |
411 | static void | |
7998dfc3 | 412 | update_current_target (void) |
c906108c | 413 | { |
7998dfc3 AC |
414 | struct target_ops *t; |
415 | ||
08d8bcd7 | 416 | /* First, reset current's contents. */ |
7998dfc3 AC |
417 | memset (¤t_target, 0, sizeof (current_target)); |
418 | ||
419 | #define INHERIT(FIELD, TARGET) \ | |
420 | if (!current_target.FIELD) \ | |
421 | current_target.FIELD = (TARGET)->FIELD | |
422 | ||
423 | for (t = target_stack; t; t = t->beneath) | |
424 | { | |
425 | INHERIT (to_shortname, t); | |
426 | INHERIT (to_longname, t); | |
427 | INHERIT (to_doc, t); | |
b52323fa UW |
428 | /* Do not inherit to_open. */ |
429 | /* Do not inherit to_close. */ | |
136d6dae | 430 | /* Do not inherit to_attach. */ |
7998dfc3 | 431 | INHERIT (to_post_attach, t); |
dc177b7a | 432 | INHERIT (to_attach_no_wait, t); |
136d6dae | 433 | /* Do not inherit to_detach. */ |
597320e7 | 434 | /* Do not inherit to_disconnect. */ |
28439f5e | 435 | /* Do not inherit to_resume. */ |
117de6a9 | 436 | /* Do not inherit to_wait. */ |
28439f5e PA |
437 | /* Do not inherit to_fetch_registers. */ |
438 | /* Do not inherit to_store_registers. */ | |
7998dfc3 | 439 | INHERIT (to_prepare_to_store, t); |
c8e73a31 | 440 | INHERIT (deprecated_xfer_memory, t); |
7998dfc3 AC |
441 | INHERIT (to_files_info, t); |
442 | INHERIT (to_insert_breakpoint, t); | |
443 | INHERIT (to_remove_breakpoint, t); | |
444 | INHERIT (to_can_use_hw_breakpoint, t); | |
445 | INHERIT (to_insert_hw_breakpoint, t); | |
446 | INHERIT (to_remove_hw_breakpoint, t); | |
447 | INHERIT (to_insert_watchpoint, t); | |
448 | INHERIT (to_remove_watchpoint, t); | |
449 | INHERIT (to_stopped_data_address, t); | |
74174d2e | 450 | INHERIT (to_have_steppable_watchpoint, t); |
7998dfc3 | 451 | INHERIT (to_have_continuable_watchpoint, t); |
5009afc5 AS |
452 | INHERIT (to_stopped_by_watchpoint, t); |
453 | INHERIT (to_watchpoint_addr_within_range, t); | |
e0d24f8d | 454 | INHERIT (to_region_ok_for_hw_watchpoint, t); |
7998dfc3 AC |
455 | INHERIT (to_terminal_init, t); |
456 | INHERIT (to_terminal_inferior, t); | |
457 | INHERIT (to_terminal_ours_for_output, t); | |
458 | INHERIT (to_terminal_ours, t); | |
459 | INHERIT (to_terminal_save_ours, t); | |
460 | INHERIT (to_terminal_info, t); | |
7d85a9c0 | 461 | /* Do not inherit to_kill. */ |
7998dfc3 AC |
462 | INHERIT (to_load, t); |
463 | INHERIT (to_lookup_symbol, t); | |
136d6dae | 464 | /* Do no inherit to_create_inferior. */ |
7998dfc3 AC |
465 | INHERIT (to_post_startup_inferior, t); |
466 | INHERIT (to_acknowledge_created_inferior, t); | |
467 | INHERIT (to_insert_fork_catchpoint, t); | |
468 | INHERIT (to_remove_fork_catchpoint, t); | |
469 | INHERIT (to_insert_vfork_catchpoint, t); | |
470 | INHERIT (to_remove_vfork_catchpoint, t); | |
ee057212 | 471 | /* Do not inherit to_follow_fork. */ |
7998dfc3 AC |
472 | INHERIT (to_insert_exec_catchpoint, t); |
473 | INHERIT (to_remove_exec_catchpoint, t); | |
7998dfc3 | 474 | INHERIT (to_has_exited, t); |
117de6a9 | 475 | /* Do not inherit to_mourn_inferiour. */ |
7998dfc3 AC |
476 | INHERIT (to_can_run, t); |
477 | INHERIT (to_notice_signals, t); | |
28439f5e PA |
478 | /* Do not inherit to_thread_alive. */ |
479 | /* Do not inherit to_find_new_threads. */ | |
117de6a9 | 480 | /* Do not inherit to_pid_to_str. */ |
7998dfc3 AC |
481 | INHERIT (to_extra_thread_info, t); |
482 | INHERIT (to_stop, t); | |
4b8a223f | 483 | /* Do not inherit to_xfer_partial. */ |
7998dfc3 | 484 | INHERIT (to_rcmd, t); |
7998dfc3 | 485 | INHERIT (to_pid_to_exec_file, t); |
49d03eab | 486 | INHERIT (to_log_command, t); |
7998dfc3 AC |
487 | INHERIT (to_stratum, t); |
488 | INHERIT (to_has_all_memory, t); | |
489 | INHERIT (to_has_memory, t); | |
490 | INHERIT (to_has_stack, t); | |
491 | INHERIT (to_has_registers, t); | |
492 | INHERIT (to_has_execution, t); | |
493 | INHERIT (to_has_thread_control, t); | |
494 | INHERIT (to_sections, t); | |
495 | INHERIT (to_sections_end, t); | |
496 | INHERIT (to_can_async_p, t); | |
497 | INHERIT (to_is_async_p, t); | |
498 | INHERIT (to_async, t); | |
b84876c2 | 499 | INHERIT (to_async_mask, t); |
7998dfc3 AC |
500 | INHERIT (to_find_memory_regions, t); |
501 | INHERIT (to_make_corefile_notes, t); | |
117de6a9 | 502 | /* Do not inherit to_get_thread_local_address. */ |
b2175913 | 503 | INHERIT (to_can_execute_reverse, t); |
424163ea | 504 | /* Do not inherit to_read_description. */ |
0ef643c8 | 505 | INHERIT (to_get_ada_task_ptid, t); |
08388c79 | 506 | /* Do not inherit to_search_memory. */ |
8a305172 | 507 | INHERIT (to_supports_multi_process, t); |
7998dfc3 | 508 | INHERIT (to_magic, t); |
fd79ecee | 509 | /* Do not inherit to_memory_map. */ |
a76d924d DJ |
510 | /* Do not inherit to_flash_erase. */ |
511 | /* Do not inherit to_flash_done. */ | |
7998dfc3 AC |
512 | } |
513 | #undef INHERIT | |
514 | ||
515 | /* Clean up a target struct so it no longer has any zero pointers in | |
0088c768 AC |
516 | it. Some entries are defaulted to a method that print an error, |
517 | others are hard-wired to a standard recursive default. */ | |
c906108c SS |
518 | |
519 | #define de_fault(field, value) \ | |
7998dfc3 AC |
520 | if (!current_target.field) \ |
521 | current_target.field = value | |
0d06e24b | 522 | |
2bc416ba DJ |
523 | de_fault (to_open, |
524 | (void (*) (char *, int)) | |
0d06e24b | 525 | tcomplain); |
2bc416ba DJ |
526 | de_fault (to_close, |
527 | (void (*) (int)) | |
0d06e24b | 528 | target_ignore); |
2bc416ba DJ |
529 | de_fault (to_post_attach, |
530 | (void (*) (int)) | |
0d06e24b | 531 | target_ignore); |
2bc416ba | 532 | de_fault (to_prepare_to_store, |
316f2060 | 533 | (void (*) (struct regcache *)) |
0d06e24b | 534 | noprocess); |
2bc416ba DJ |
535 | de_fault (deprecated_xfer_memory, |
536 | (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *)) | |
0d06e24b | 537 | nomemory); |
2bc416ba DJ |
538 | de_fault (to_files_info, |
539 | (void (*) (struct target_ops *)) | |
0d06e24b | 540 | target_ignore); |
2bc416ba | 541 | de_fault (to_insert_breakpoint, |
0d06e24b | 542 | memory_insert_breakpoint); |
2bc416ba | 543 | de_fault (to_remove_breakpoint, |
0d06e24b | 544 | memory_remove_breakpoint); |
ccaa32c7 GS |
545 | de_fault (to_can_use_hw_breakpoint, |
546 | (int (*) (int, int, int)) | |
547 | return_zero); | |
548 | de_fault (to_insert_hw_breakpoint, | |
8181d85f | 549 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
550 | return_minus_one); |
551 | de_fault (to_remove_hw_breakpoint, | |
8181d85f | 552 | (int (*) (struct bp_target_info *)) |
ccaa32c7 GS |
553 | return_minus_one); |
554 | de_fault (to_insert_watchpoint, | |
555 | (int (*) (CORE_ADDR, int, int)) | |
556 | return_minus_one); | |
557 | de_fault (to_remove_watchpoint, | |
558 | (int (*) (CORE_ADDR, int, int)) | |
559 | return_minus_one); | |
560 | de_fault (to_stopped_by_watchpoint, | |
561 | (int (*) (void)) | |
562 | return_zero); | |
563 | de_fault (to_stopped_data_address, | |
4aa7a7f5 | 564 | (int (*) (struct target_ops *, CORE_ADDR *)) |
ccaa32c7 | 565 | return_zero); |
5009afc5 AS |
566 | de_fault (to_watchpoint_addr_within_range, |
567 | default_watchpoint_addr_within_range); | |
e0d24f8d WZ |
568 | de_fault (to_region_ok_for_hw_watchpoint, |
569 | default_region_ok_for_hw_watchpoint); | |
2bc416ba DJ |
570 | de_fault (to_terminal_init, |
571 | (void (*) (void)) | |
0d06e24b | 572 | target_ignore); |
2bc416ba DJ |
573 | de_fault (to_terminal_inferior, |
574 | (void (*) (void)) | |
0d06e24b | 575 | target_ignore); |
2bc416ba DJ |
576 | de_fault (to_terminal_ours_for_output, |
577 | (void (*) (void)) | |
0d06e24b | 578 | target_ignore); |
2bc416ba DJ |
579 | de_fault (to_terminal_ours, |
580 | (void (*) (void)) | |
0d06e24b | 581 | target_ignore); |
2bc416ba DJ |
582 | de_fault (to_terminal_save_ours, |
583 | (void (*) (void)) | |
a790ad35 | 584 | target_ignore); |
2bc416ba | 585 | de_fault (to_terminal_info, |
0d06e24b | 586 | default_terminal_info); |
2bc416ba DJ |
587 | de_fault (to_load, |
588 | (void (*) (char *, int)) | |
0d06e24b | 589 | tcomplain); |
2bc416ba DJ |
590 | de_fault (to_lookup_symbol, |
591 | (int (*) (char *, CORE_ADDR *)) | |
0d06e24b | 592 | nosymbol); |
2bc416ba DJ |
593 | de_fault (to_post_startup_inferior, |
594 | (void (*) (ptid_t)) | |
0d06e24b | 595 | target_ignore); |
2bc416ba DJ |
596 | de_fault (to_acknowledge_created_inferior, |
597 | (void (*) (int)) | |
0d06e24b | 598 | target_ignore); |
2bc416ba DJ |
599 | de_fault (to_insert_fork_catchpoint, |
600 | (void (*) (int)) | |
0d06e24b | 601 | tcomplain); |
2bc416ba DJ |
602 | de_fault (to_remove_fork_catchpoint, |
603 | (int (*) (int)) | |
0d06e24b | 604 | tcomplain); |
2bc416ba DJ |
605 | de_fault (to_insert_vfork_catchpoint, |
606 | (void (*) (int)) | |
0d06e24b | 607 | tcomplain); |
2bc416ba DJ |
608 | de_fault (to_remove_vfork_catchpoint, |
609 | (int (*) (int)) | |
0d06e24b | 610 | tcomplain); |
2bc416ba DJ |
611 | de_fault (to_insert_exec_catchpoint, |
612 | (void (*) (int)) | |
0d06e24b | 613 | tcomplain); |
2bc416ba DJ |
614 | de_fault (to_remove_exec_catchpoint, |
615 | (int (*) (int)) | |
0d06e24b | 616 | tcomplain); |
2bc416ba DJ |
617 | de_fault (to_has_exited, |
618 | (int (*) (int, int, int *)) | |
0d06e24b | 619 | return_zero); |
2bc416ba | 620 | de_fault (to_can_run, |
0d06e24b | 621 | return_zero); |
2bc416ba DJ |
622 | de_fault (to_notice_signals, |
623 | (void (*) (ptid_t)) | |
0d06e24b | 624 | target_ignore); |
2bc416ba DJ |
625 | de_fault (to_extra_thread_info, |
626 | (char *(*) (struct thread_info *)) | |
0d06e24b | 627 | return_zero); |
2bc416ba | 628 | de_fault (to_stop, |
94cc34af | 629 | (void (*) (ptid_t)) |
0d06e24b | 630 | target_ignore); |
cf7a04e8 | 631 | current_target.to_xfer_partial = current_xfer_partial; |
2bc416ba DJ |
632 | de_fault (to_rcmd, |
633 | (void (*) (char *, struct ui_file *)) | |
0d06e24b | 634 | tcomplain); |
2bc416ba DJ |
635 | de_fault (to_pid_to_exec_file, |
636 | (char *(*) (int)) | |
0d06e24b | 637 | return_zero); |
2bc416ba DJ |
638 | de_fault (to_async, |
639 | (void (*) (void (*) (enum inferior_event_type, void*), void*)) | |
0d06e24b | 640 | tcomplain); |
b84876c2 PA |
641 | de_fault (to_async_mask, |
642 | (int (*) (int)) | |
643 | return_one); | |
424163ea | 644 | current_target.to_read_description = NULL; |
0ef643c8 JB |
645 | de_fault (to_get_ada_task_ptid, |
646 | (ptid_t (*) (long, long)) | |
647 | default_get_ada_task_ptid); | |
8a305172 PA |
648 | de_fault (to_supports_multi_process, |
649 | (int (*) (void)) | |
650 | return_zero); | |
c906108c | 651 | #undef de_fault |
c906108c | 652 | |
7998dfc3 AC |
653 | /* Finally, position the target-stack beneath the squashed |
654 | "current_target". That way code looking for a non-inherited | |
655 | target method can quickly and simply find it. */ | |
656 | current_target.beneath = target_stack; | |
b4b61fdb DJ |
657 | |
658 | if (targetdebug) | |
659 | setup_target_debug (); | |
c906108c SS |
660 | } |
661 | ||
52bb452f DJ |
662 | /* Mark OPS as a running target. This reverses the effect |
663 | of target_mark_exited. */ | |
664 | ||
665 | void | |
666 | target_mark_running (struct target_ops *ops) | |
667 | { | |
668 | struct target_ops *t; | |
669 | ||
670 | for (t = target_stack; t != NULL; t = t->beneath) | |
671 | if (t == ops) | |
672 | break; | |
673 | if (t == NULL) | |
674 | internal_error (__FILE__, __LINE__, | |
675 | "Attempted to mark unpushed target \"%s\" as running", | |
676 | ops->to_shortname); | |
677 | ||
678 | ops->to_has_execution = 1; | |
679 | ops->to_has_all_memory = 1; | |
680 | ops->to_has_memory = 1; | |
681 | ops->to_has_stack = 1; | |
682 | ops->to_has_registers = 1; | |
683 | ||
684 | update_current_target (); | |
685 | } | |
686 | ||
687 | /* Mark OPS as a non-running target. This reverses the effect | |
688 | of target_mark_running. */ | |
689 | ||
690 | void | |
691 | target_mark_exited (struct target_ops *ops) | |
692 | { | |
693 | struct target_ops *t; | |
694 | ||
695 | for (t = target_stack; t != NULL; t = t->beneath) | |
696 | if (t == ops) | |
697 | break; | |
698 | if (t == NULL) | |
699 | internal_error (__FILE__, __LINE__, | |
700 | "Attempted to mark unpushed target \"%s\" as running", | |
701 | ops->to_shortname); | |
702 | ||
703 | ops->to_has_execution = 0; | |
704 | ops->to_has_all_memory = 0; | |
705 | ops->to_has_memory = 0; | |
706 | ops->to_has_stack = 0; | |
707 | ops->to_has_registers = 0; | |
708 | ||
709 | update_current_target (); | |
710 | } | |
711 | ||
c906108c SS |
712 | /* Push a new target type into the stack of the existing target accessors, |
713 | possibly superseding some of the existing accessors. | |
714 | ||
715 | Result is zero if the pushed target ended up on top of the stack, | |
716 | nonzero if at least one target is on top of it. | |
717 | ||
718 | Rather than allow an empty stack, we always have the dummy target at | |
719 | the bottom stratum, so we can call the function vectors without | |
720 | checking them. */ | |
721 | ||
722 | int | |
fba45db2 | 723 | push_target (struct target_ops *t) |
c906108c | 724 | { |
258b763a | 725 | struct target_ops **cur; |
c906108c SS |
726 | |
727 | /* Check magic number. If wrong, it probably means someone changed | |
728 | the struct definition, but not all the places that initialize one. */ | |
729 | if (t->to_magic != OPS_MAGIC) | |
730 | { | |
c5aa993b JM |
731 | fprintf_unfiltered (gdb_stderr, |
732 | "Magic number of %s target struct wrong\n", | |
733 | t->to_shortname); | |
e2e0b3e5 | 734 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
735 | } |
736 | ||
258b763a AC |
737 | /* Find the proper stratum to install this target in. */ |
738 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) | |
c906108c | 739 | { |
258b763a | 740 | if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum) |
c906108c SS |
741 | break; |
742 | } | |
743 | ||
258b763a | 744 | /* If there's already targets at this stratum, remove them. */ |
88c231eb | 745 | /* FIXME: cagney/2003-10-15: I think this should be popping all |
258b763a AC |
746 | targets to CUR, and not just those at this stratum level. */ |
747 | while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum) | |
748 | { | |
749 | /* There's already something at this stratum level. Close it, | |
750 | and un-hook it from the stack. */ | |
751 | struct target_ops *tmp = (*cur); | |
752 | (*cur) = (*cur)->beneath; | |
753 | tmp->beneath = NULL; | |
f1c07ab0 | 754 | target_close (tmp, 0); |
258b763a | 755 | } |
c906108c SS |
756 | |
757 | /* We have removed all targets in our stratum, now add the new one. */ | |
258b763a AC |
758 | t->beneath = (*cur); |
759 | (*cur) = t; | |
c906108c SS |
760 | |
761 | update_current_target (); | |
762 | ||
258b763a AC |
763 | /* Not on top? */ |
764 | return (t != target_stack); | |
c906108c SS |
765 | } |
766 | ||
2bc416ba | 767 | /* Remove a target_ops vector from the stack, wherever it may be. |
c906108c SS |
768 | Return how many times it was removed (0 or 1). */ |
769 | ||
770 | int | |
fba45db2 | 771 | unpush_target (struct target_ops *t) |
c906108c | 772 | { |
258b763a AC |
773 | struct target_ops **cur; |
774 | struct target_ops *tmp; | |
c906108c | 775 | |
c8d104ad PA |
776 | if (t->to_stratum == dummy_stratum) |
777 | internal_error (__FILE__, __LINE__, | |
778 | "Attempt to unpush the dummy target"); | |
779 | ||
c906108c SS |
780 | /* Look for the specified target. Note that we assume that a target |
781 | can only occur once in the target stack. */ | |
782 | ||
258b763a AC |
783 | for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath) |
784 | { | |
785 | if ((*cur) == t) | |
786 | break; | |
787 | } | |
c906108c | 788 | |
258b763a | 789 | if ((*cur) == NULL) |
c906108c SS |
790 | return 0; /* Didn't find target_ops, quit now */ |
791 | ||
5269965e AC |
792 | /* NOTE: cagney/2003-12-06: In '94 the close call was made |
793 | unconditional by moving it to before the above check that the | |
794 | target was in the target stack (something about "Change the way | |
795 | pushing and popping of targets work to support target overlays | |
796 | and inheritance"). This doesn't make much sense - only open | |
797 | targets should be closed. */ | |
798 | target_close (t, 0); | |
799 | ||
c906108c | 800 | /* Unchain the target */ |
258b763a AC |
801 | tmp = (*cur); |
802 | (*cur) = (*cur)->beneath; | |
803 | tmp->beneath = NULL; | |
c906108c SS |
804 | |
805 | update_current_target (); | |
c906108c SS |
806 | |
807 | return 1; | |
808 | } | |
809 | ||
810 | void | |
fba45db2 | 811 | pop_target (void) |
c906108c | 812 | { |
b52323fa | 813 | target_close (target_stack, 0); /* Let it clean up */ |
258b763a | 814 | if (unpush_target (target_stack) == 1) |
c906108c SS |
815 | return; |
816 | ||
c5aa993b JM |
817 | fprintf_unfiltered (gdb_stderr, |
818 | "pop_target couldn't find target %s\n", | |
819 | current_target.to_shortname); | |
e2e0b3e5 | 820 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
821 | } |
822 | ||
aa76d38d | 823 | void |
87ab71f0 | 824 | pop_all_targets_above (enum strata above_stratum, int quitting) |
aa76d38d | 825 | { |
87ab71f0 | 826 | while ((int) (current_target.to_stratum) > (int) above_stratum) |
aa76d38d | 827 | { |
b52323fa | 828 | target_close (target_stack, quitting); |
aa76d38d PA |
829 | if (!unpush_target (target_stack)) |
830 | { | |
831 | fprintf_unfiltered (gdb_stderr, | |
832 | "pop_all_targets couldn't find target %s\n", | |
b52323fa | 833 | target_stack->to_shortname); |
aa76d38d PA |
834 | internal_error (__FILE__, __LINE__, |
835 | _("failed internal consistency check")); | |
836 | break; | |
837 | } | |
838 | } | |
839 | } | |
840 | ||
87ab71f0 PA |
841 | void |
842 | pop_all_targets (int quitting) | |
843 | { | |
844 | pop_all_targets_above (dummy_stratum, quitting); | |
845 | } | |
846 | ||
72f5cf0e | 847 | /* Using the objfile specified in OBJFILE, find the address for the |
9e35dae4 DJ |
848 | current thread's thread-local storage with offset OFFSET. */ |
849 | CORE_ADDR | |
850 | target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset) | |
851 | { | |
852 | volatile CORE_ADDR addr = 0; | |
117de6a9 PA |
853 | struct target_ops *target; |
854 | ||
855 | for (target = current_target.beneath; | |
856 | target != NULL; | |
857 | target = target->beneath) | |
858 | { | |
859 | if (target->to_get_thread_local_address != NULL) | |
860 | break; | |
861 | } | |
9e35dae4 | 862 | |
117de6a9 | 863 | if (target != NULL |
1cf3db46 | 864 | && gdbarch_fetch_tls_load_module_address_p (target_gdbarch)) |
9e35dae4 DJ |
865 | { |
866 | ptid_t ptid = inferior_ptid; | |
867 | volatile struct gdb_exception ex; | |
868 | ||
869 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
870 | { | |
871 | CORE_ADDR lm_addr; | |
872 | ||
873 | /* Fetch the load module address for this objfile. */ | |
1cf3db46 | 874 | lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch, |
9e35dae4 DJ |
875 | objfile); |
876 | /* If it's 0, throw the appropriate exception. */ | |
877 | if (lm_addr == 0) | |
878 | throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR, | |
879 | _("TLS load module not found")); | |
880 | ||
117de6a9 | 881 | addr = target->to_get_thread_local_address (target, ptid, lm_addr, offset); |
9e35dae4 DJ |
882 | } |
883 | /* If an error occurred, print TLS related messages here. Otherwise, | |
884 | throw the error to some higher catcher. */ | |
885 | if (ex.reason < 0) | |
886 | { | |
887 | int objfile_is_library = (objfile->flags & OBJF_SHARED); | |
888 | ||
889 | switch (ex.error) | |
890 | { | |
891 | case TLS_NO_LIBRARY_SUPPORT_ERROR: | |
892 | error (_("Cannot find thread-local variables in this thread library.")); | |
893 | break; | |
894 | case TLS_LOAD_MODULE_NOT_FOUND_ERROR: | |
895 | if (objfile_is_library) | |
896 | error (_("Cannot find shared library `%s' in dynamic" | |
897 | " linker's load module list"), objfile->name); | |
898 | else | |
899 | error (_("Cannot find executable file `%s' in dynamic" | |
900 | " linker's load module list"), objfile->name); | |
901 | break; | |
902 | case TLS_NOT_ALLOCATED_YET_ERROR: | |
903 | if (objfile_is_library) | |
904 | error (_("The inferior has not yet allocated storage for" | |
905 | " thread-local variables in\n" | |
906 | "the shared library `%s'\n" | |
907 | "for %s"), | |
908 | objfile->name, target_pid_to_str (ptid)); | |
909 | else | |
910 | error (_("The inferior has not yet allocated storage for" | |
911 | " thread-local variables in\n" | |
912 | "the executable `%s'\n" | |
913 | "for %s"), | |
914 | objfile->name, target_pid_to_str (ptid)); | |
915 | break; | |
916 | case TLS_GENERIC_ERROR: | |
917 | if (objfile_is_library) | |
918 | error (_("Cannot find thread-local storage for %s, " | |
919 | "shared library %s:\n%s"), | |
920 | target_pid_to_str (ptid), | |
921 | objfile->name, ex.message); | |
922 | else | |
923 | error (_("Cannot find thread-local storage for %s, " | |
924 | "executable file %s:\n%s"), | |
925 | target_pid_to_str (ptid), | |
926 | objfile->name, ex.message); | |
927 | break; | |
928 | default: | |
929 | throw_exception (ex); | |
930 | break; | |
931 | } | |
932 | } | |
933 | } | |
934 | /* It wouldn't be wrong here to try a gdbarch method, too; finding | |
935 | TLS is an ABI-specific thing. But we don't do that yet. */ | |
936 | else | |
937 | error (_("Cannot find thread-local variables on this target")); | |
938 | ||
939 | return addr; | |
940 | } | |
941 | ||
c906108c SS |
942 | #undef MIN |
943 | #define MIN(A, B) (((A) <= (B)) ? (A) : (B)) | |
944 | ||
945 | /* target_read_string -- read a null terminated string, up to LEN bytes, | |
946 | from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful. | |
947 | Set *STRING to a pointer to malloc'd memory containing the data; the caller | |
948 | is responsible for freeing it. Return the number of bytes successfully | |
949 | read. */ | |
950 | ||
951 | int | |
fba45db2 | 952 | target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop) |
c906108c SS |
953 | { |
954 | int tlen, origlen, offset, i; | |
1b0ba102 | 955 | gdb_byte buf[4]; |
c906108c SS |
956 | int errcode = 0; |
957 | char *buffer; | |
958 | int buffer_allocated; | |
959 | char *bufptr; | |
960 | unsigned int nbytes_read = 0; | |
961 | ||
6217bf3e MS |
962 | gdb_assert (string); |
963 | ||
c906108c SS |
964 | /* Small for testing. */ |
965 | buffer_allocated = 4; | |
966 | buffer = xmalloc (buffer_allocated); | |
967 | bufptr = buffer; | |
968 | ||
969 | origlen = len; | |
970 | ||
971 | while (len > 0) | |
972 | { | |
973 | tlen = MIN (len, 4 - (memaddr & 3)); | |
974 | offset = memaddr & 3; | |
975 | ||
1b0ba102 | 976 | errcode = target_read_memory (memaddr & ~3, buf, sizeof buf); |
c906108c SS |
977 | if (errcode != 0) |
978 | { | |
979 | /* The transfer request might have crossed the boundary to an | |
980 | unallocated region of memory. Retry the transfer, requesting | |
981 | a single byte. */ | |
982 | tlen = 1; | |
983 | offset = 0; | |
b8eb5af0 | 984 | errcode = target_read_memory (memaddr, buf, 1); |
c906108c SS |
985 | if (errcode != 0) |
986 | goto done; | |
987 | } | |
988 | ||
989 | if (bufptr - buffer + tlen > buffer_allocated) | |
990 | { | |
991 | unsigned int bytes; | |
992 | bytes = bufptr - buffer; | |
993 | buffer_allocated *= 2; | |
994 | buffer = xrealloc (buffer, buffer_allocated); | |
995 | bufptr = buffer + bytes; | |
996 | } | |
997 | ||
998 | for (i = 0; i < tlen; i++) | |
999 | { | |
1000 | *bufptr++ = buf[i + offset]; | |
1001 | if (buf[i + offset] == '\000') | |
1002 | { | |
1003 | nbytes_read += i + 1; | |
1004 | goto done; | |
1005 | } | |
1006 | } | |
1007 | ||
1008 | memaddr += tlen; | |
1009 | len -= tlen; | |
1010 | nbytes_read += tlen; | |
1011 | } | |
c5aa993b | 1012 | done: |
6217bf3e | 1013 | *string = buffer; |
c906108c SS |
1014 | if (errnop != NULL) |
1015 | *errnop = errcode; | |
c906108c SS |
1016 | return nbytes_read; |
1017 | } | |
1018 | ||
8db32d44 AC |
1019 | /* Find a section containing ADDR. */ |
1020 | struct section_table * | |
1021 | target_section_by_addr (struct target_ops *target, CORE_ADDR addr) | |
1022 | { | |
1023 | struct section_table *secp; | |
1024 | for (secp = target->to_sections; | |
1025 | secp < target->to_sections_end; | |
1026 | secp++) | |
1027 | { | |
1028 | if (addr >= secp->addr && addr < secp->endaddr) | |
1029 | return secp; | |
1030 | } | |
1031 | return NULL; | |
1032 | } | |
1033 | ||
cf7a04e8 DJ |
1034 | /* Perform a partial memory transfer. The arguments and return |
1035 | value are just as for target_xfer_partial. */ | |
1036 | ||
1037 | static LONGEST | |
1038 | memory_xfer_partial (struct target_ops *ops, void *readbuf, const void *writebuf, | |
1039 | ULONGEST memaddr, LONGEST len) | |
0779438d | 1040 | { |
cf7a04e8 DJ |
1041 | LONGEST res; |
1042 | int reg_len; | |
1043 | struct mem_region *region; | |
1044 | ||
1045 | /* Zero length requests are ok and require no work. */ | |
1046 | if (len == 0) | |
1047 | return 0; | |
1048 | ||
1049 | /* Try the executable file, if "trust-readonly-sections" is set. */ | |
1050 | if (readbuf != NULL && trust_readonly) | |
1051 | { | |
1052 | struct section_table *secp; | |
1053 | ||
1054 | secp = target_section_by_addr (ops, memaddr); | |
1055 | if (secp != NULL | |
1056 | && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section) | |
1057 | & SEC_READONLY)) | |
1058 | return xfer_memory (memaddr, readbuf, len, 0, NULL, ops); | |
1059 | } | |
1060 | ||
98646950 UW |
1061 | /* Likewise for accesses to unmapped overlay sections. */ |
1062 | if (readbuf != NULL && overlay_debugging) | |
1063 | { | |
714835d5 | 1064 | struct obj_section *section = find_pc_overlay (memaddr); |
98646950 UW |
1065 | if (pc_in_unmapped_range (memaddr, section)) |
1066 | return xfer_memory (memaddr, readbuf, len, 0, NULL, ops); | |
1067 | } | |
1068 | ||
cf7a04e8 DJ |
1069 | /* Try GDB's internal data cache. */ |
1070 | region = lookup_mem_region (memaddr); | |
4b5752d0 VP |
1071 | /* region->hi == 0 means there's no upper bound. */ |
1072 | if (memaddr + len < region->hi || region->hi == 0) | |
cf7a04e8 DJ |
1073 | reg_len = len; |
1074 | else | |
1075 | reg_len = region->hi - memaddr; | |
1076 | ||
1077 | switch (region->attrib.mode) | |
1078 | { | |
1079 | case MEM_RO: | |
1080 | if (writebuf != NULL) | |
1081 | return -1; | |
1082 | break; | |
1083 | ||
1084 | case MEM_WO: | |
1085 | if (readbuf != NULL) | |
1086 | return -1; | |
1087 | break; | |
a76d924d DJ |
1088 | |
1089 | case MEM_FLASH: | |
1090 | /* We only support writing to flash during "load" for now. */ | |
1091 | if (writebuf != NULL) | |
1092 | error (_("Writing to flash memory forbidden in this context")); | |
1093 | break; | |
4b5752d0 VP |
1094 | |
1095 | case MEM_NONE: | |
1096 | return -1; | |
cf7a04e8 DJ |
1097 | } |
1098 | ||
1099 | if (region->attrib.cache) | |
1100 | { | |
1101 | /* FIXME drow/2006-08-09: This call discards OPS, so the raw | |
1102 | memory request will start back at current_target. */ | |
1103 | if (readbuf != NULL) | |
1104 | res = dcache_xfer_memory (target_dcache, memaddr, readbuf, | |
1105 | reg_len, 0); | |
1106 | else | |
1107 | /* FIXME drow/2006-08-09: If we're going to preserve const | |
1108 | correctness dcache_xfer_memory should take readbuf and | |
1109 | writebuf. */ | |
1110 | res = dcache_xfer_memory (target_dcache, memaddr, | |
1111 | (void *) writebuf, | |
1112 | reg_len, 1); | |
1113 | if (res <= 0) | |
1114 | return -1; | |
1115 | else | |
8defab1a DJ |
1116 | { |
1117 | if (readbuf && !show_memory_breakpoints) | |
1118 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1119 | return res; | |
1120 | } | |
cf7a04e8 DJ |
1121 | } |
1122 | ||
1123 | /* If none of those methods found the memory we wanted, fall back | |
1124 | to a target partial transfer. Normally a single call to | |
1125 | to_xfer_partial is enough; if it doesn't recognize an object | |
1126 | it will call the to_xfer_partial of the next target down. | |
1127 | But for memory this won't do. Memory is the only target | |
1128 | object which can be read from more than one valid target. | |
1129 | A core file, for instance, could have some of memory but | |
1130 | delegate other bits to the target below it. So, we must | |
1131 | manually try all targets. */ | |
1132 | ||
1133 | do | |
1134 | { | |
1135 | res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL, | |
4b5752d0 | 1136 | readbuf, writebuf, memaddr, reg_len); |
cf7a04e8 | 1137 | if (res > 0) |
8defab1a | 1138 | break; |
cf7a04e8 | 1139 | |
5ad3a4ca DJ |
1140 | /* We want to continue past core files to executables, but not |
1141 | past a running target's memory. */ | |
1142 | if (ops->to_has_all_memory) | |
8defab1a | 1143 | break; |
5ad3a4ca | 1144 | |
cf7a04e8 DJ |
1145 | ops = ops->beneath; |
1146 | } | |
1147 | while (ops != NULL); | |
1148 | ||
8defab1a DJ |
1149 | if (readbuf && !show_memory_breakpoints) |
1150 | breakpoint_restore_shadows (readbuf, memaddr, reg_len); | |
1151 | ||
cf7a04e8 DJ |
1152 | /* If we still haven't got anything, return the last error. We |
1153 | give up. */ | |
1154 | return res; | |
0779438d AC |
1155 | } |
1156 | ||
8defab1a DJ |
1157 | static void |
1158 | restore_show_memory_breakpoints (void *arg) | |
1159 | { | |
1160 | show_memory_breakpoints = (uintptr_t) arg; | |
1161 | } | |
1162 | ||
1163 | struct cleanup * | |
1164 | make_show_memory_breakpoints_cleanup (int show) | |
1165 | { | |
1166 | int current = show_memory_breakpoints; | |
1167 | show_memory_breakpoints = show; | |
1168 | ||
1169 | return make_cleanup (restore_show_memory_breakpoints, | |
1170 | (void *) (uintptr_t) current); | |
1171 | } | |
1172 | ||
27394598 AC |
1173 | static LONGEST |
1174 | target_xfer_partial (struct target_ops *ops, | |
1175 | enum target_object object, const char *annex, | |
1176 | void *readbuf, const void *writebuf, | |
1177 | ULONGEST offset, LONGEST len) | |
1178 | { | |
1179 | LONGEST retval; | |
1180 | ||
1181 | gdb_assert (ops->to_xfer_partial != NULL); | |
cf7a04e8 DJ |
1182 | |
1183 | /* If this is a memory transfer, let the memory-specific code | |
1184 | have a look at it instead. Memory transfers are more | |
1185 | complicated. */ | |
1186 | if (object == TARGET_OBJECT_MEMORY) | |
1187 | retval = memory_xfer_partial (ops, readbuf, writebuf, offset, len); | |
1188 | else | |
1189 | { | |
1190 | enum target_object raw_object = object; | |
1191 | ||
1192 | /* If this is a raw memory transfer, request the normal | |
1193 | memory object from other layers. */ | |
1194 | if (raw_object == TARGET_OBJECT_RAW_MEMORY) | |
1195 | raw_object = TARGET_OBJECT_MEMORY; | |
1196 | ||
1197 | retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf, | |
1198 | writebuf, offset, len); | |
1199 | } | |
1200 | ||
27394598 AC |
1201 | if (targetdebug) |
1202 | { | |
1203 | const unsigned char *myaddr = NULL; | |
1204 | ||
1205 | fprintf_unfiltered (gdb_stdlog, | |
53b71562 | 1206 | "%s:target_xfer_partial (%d, %s, %s, %s, %s, %s) = %s", |
27394598 AC |
1207 | ops->to_shortname, |
1208 | (int) object, | |
1209 | (annex ? annex : "(null)"), | |
53b71562 JB |
1210 | host_address_to_string (readbuf), |
1211 | host_address_to_string (writebuf), | |
0b1553bc UW |
1212 | core_addr_to_string_nz (offset), |
1213 | plongest (len), plongest (retval)); | |
27394598 AC |
1214 | |
1215 | if (readbuf) | |
1216 | myaddr = readbuf; | |
1217 | if (writebuf) | |
1218 | myaddr = writebuf; | |
1219 | if (retval > 0 && myaddr != NULL) | |
1220 | { | |
1221 | int i; | |
2bc416ba | 1222 | |
27394598 AC |
1223 | fputs_unfiltered (", bytes =", gdb_stdlog); |
1224 | for (i = 0; i < retval; i++) | |
1225 | { | |
53b71562 | 1226 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
27394598 AC |
1227 | { |
1228 | if (targetdebug < 2 && i > 0) | |
1229 | { | |
1230 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
1231 | break; | |
1232 | } | |
1233 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
1234 | } | |
2bc416ba | 1235 | |
27394598 AC |
1236 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
1237 | } | |
1238 | } | |
2bc416ba | 1239 | |
27394598 AC |
1240 | fputc_unfiltered ('\n', gdb_stdlog); |
1241 | } | |
1242 | return retval; | |
1243 | } | |
1244 | ||
c906108c SS |
1245 | /* Read LEN bytes of target memory at address MEMADDR, placing the results in |
1246 | GDB's memory at MYADDR. Returns either 0 for success or an errno value | |
1247 | if any error occurs. | |
1248 | ||
1249 | If an error occurs, no guarantee is made about the contents of the data at | |
1250 | MYADDR. In particular, the caller should not depend upon partial reads | |
1251 | filling the buffer with good data. There is no way for the caller to know | |
1252 | how much good data might have been transfered anyway. Callers that can | |
cf7a04e8 DJ |
1253 | deal with partial reads should call target_read (which will retry until |
1254 | it makes no progress, and then return how much was transferred). */ | |
c906108c SS |
1255 | |
1256 | int | |
fc1a4b47 | 1257 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len) |
c906108c | 1258 | { |
cf7a04e8 DJ |
1259 | if (target_read (¤t_target, TARGET_OBJECT_MEMORY, NULL, |
1260 | myaddr, memaddr, len) == len) | |
1261 | return 0; | |
0779438d | 1262 | else |
cf7a04e8 | 1263 | return EIO; |
c906108c SS |
1264 | } |
1265 | ||
c906108c | 1266 | int |
fc1a4b47 | 1267 | target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len) |
c906108c | 1268 | { |
cf7a04e8 DJ |
1269 | if (target_write (¤t_target, TARGET_OBJECT_MEMORY, NULL, |
1270 | myaddr, memaddr, len) == len) | |
1271 | return 0; | |
0779438d | 1272 | else |
cf7a04e8 | 1273 | return EIO; |
c906108c | 1274 | } |
c5aa993b | 1275 | |
fd79ecee DJ |
1276 | /* Fetch the target's memory map. */ |
1277 | ||
1278 | VEC(mem_region_s) * | |
1279 | target_memory_map (void) | |
1280 | { | |
1281 | VEC(mem_region_s) *result; | |
1282 | struct mem_region *last_one, *this_one; | |
1283 | int ix; | |
1284 | struct target_ops *t; | |
1285 | ||
1286 | if (targetdebug) | |
1287 | fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n"); | |
1288 | ||
1289 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1290 | if (t->to_memory_map != NULL) | |
1291 | break; | |
1292 | ||
1293 | if (t == NULL) | |
1294 | return NULL; | |
1295 | ||
1296 | result = t->to_memory_map (t); | |
1297 | if (result == NULL) | |
1298 | return NULL; | |
1299 | ||
1300 | qsort (VEC_address (mem_region_s, result), | |
1301 | VEC_length (mem_region_s, result), | |
1302 | sizeof (struct mem_region), mem_region_cmp); | |
1303 | ||
1304 | /* Check that regions do not overlap. Simultaneously assign | |
1305 | a numbering for the "mem" commands to use to refer to | |
1306 | each region. */ | |
1307 | last_one = NULL; | |
1308 | for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++) | |
1309 | { | |
1310 | this_one->number = ix; | |
1311 | ||
1312 | if (last_one && last_one->hi > this_one->lo) | |
1313 | { | |
1314 | warning (_("Overlapping regions in memory map: ignoring")); | |
1315 | VEC_free (mem_region_s, result); | |
1316 | return NULL; | |
1317 | } | |
1318 | last_one = this_one; | |
1319 | } | |
1320 | ||
1321 | return result; | |
1322 | } | |
1323 | ||
a76d924d DJ |
1324 | void |
1325 | target_flash_erase (ULONGEST address, LONGEST length) | |
1326 | { | |
1327 | struct target_ops *t; | |
1328 | ||
1329 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1330 | if (t->to_flash_erase != NULL) | |
1331 | { | |
1332 | if (targetdebug) | |
1333 | fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n", | |
1334 | paddr (address), phex (length, 0)); | |
8944021f DJ |
1335 | t->to_flash_erase (t, address, length); |
1336 | return; | |
a76d924d DJ |
1337 | } |
1338 | ||
1339 | tcomplain (); | |
1340 | } | |
1341 | ||
1342 | void | |
1343 | target_flash_done (void) | |
1344 | { | |
1345 | struct target_ops *t; | |
1346 | ||
1347 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1348 | if (t->to_flash_done != NULL) | |
1349 | { | |
1350 | if (targetdebug) | |
1351 | fprintf_unfiltered (gdb_stdlog, "target_flash_done\n"); | |
8944021f DJ |
1352 | t->to_flash_done (t); |
1353 | return; | |
a76d924d DJ |
1354 | } |
1355 | ||
1356 | tcomplain (); | |
1357 | } | |
1358 | ||
920d2a44 AC |
1359 | static void |
1360 | show_trust_readonly (struct ui_file *file, int from_tty, | |
1361 | struct cmd_list_element *c, const char *value) | |
1362 | { | |
1363 | fprintf_filtered (file, _("\ | |
1364 | Mode for reading from readonly sections is %s.\n"), | |
1365 | value); | |
1366 | } | |
3a11626d | 1367 | |
1e3ff5ad AC |
1368 | /* More generic transfers. */ |
1369 | ||
0088c768 | 1370 | static LONGEST |
8aa91c1e | 1371 | default_xfer_partial (struct target_ops *ops, enum target_object object, |
2bc416ba | 1372 | const char *annex, gdb_byte *readbuf, |
1b0ba102 | 1373 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) |
0088c768 AC |
1374 | { |
1375 | if (object == TARGET_OBJECT_MEMORY | |
c8e73a31 AC |
1376 | && ops->deprecated_xfer_memory != NULL) |
1377 | /* If available, fall back to the target's | |
1378 | "deprecated_xfer_memory" method. */ | |
0088c768 | 1379 | { |
4b8a223f | 1380 | int xfered = -1; |
0088c768 | 1381 | errno = 0; |
4b8a223f AC |
1382 | if (writebuf != NULL) |
1383 | { | |
1384 | void *buffer = xmalloc (len); | |
1385 | struct cleanup *cleanup = make_cleanup (xfree, buffer); | |
1386 | memcpy (buffer, writebuf, len); | |
c8e73a31 AC |
1387 | xfered = ops->deprecated_xfer_memory (offset, buffer, len, |
1388 | 1/*write*/, NULL, ops); | |
4b8a223f AC |
1389 | do_cleanups (cleanup); |
1390 | } | |
1391 | if (readbuf != NULL) | |
244e85c8 MS |
1392 | xfered = ops->deprecated_xfer_memory (offset, readbuf, len, |
1393 | 0/*read*/, NULL, ops); | |
0088c768 AC |
1394 | if (xfered > 0) |
1395 | return xfered; | |
1396 | else if (xfered == 0 && errno == 0) | |
c8e73a31 AC |
1397 | /* "deprecated_xfer_memory" uses 0, cross checked against |
1398 | ERRNO as one indication of an error. */ | |
0088c768 AC |
1399 | return 0; |
1400 | else | |
1401 | return -1; | |
1402 | } | |
1403 | else if (ops->beneath != NULL) | |
cf7a04e8 DJ |
1404 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, |
1405 | readbuf, writebuf, offset, len); | |
1406 | else | |
1407 | return -1; | |
1408 | } | |
1409 | ||
1410 | /* The xfer_partial handler for the topmost target. Unlike the default, | |
1411 | it does not need to handle memory specially; it just passes all | |
1412 | requests down the stack. */ | |
1413 | ||
1414 | static LONGEST | |
1415 | current_xfer_partial (struct target_ops *ops, enum target_object object, | |
1416 | const char *annex, gdb_byte *readbuf, | |
1417 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
1418 | { | |
1419 | if (ops->beneath != NULL) | |
1420 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1421 | readbuf, writebuf, offset, len); | |
0088c768 AC |
1422 | else |
1423 | return -1; | |
1424 | } | |
1425 | ||
1426 | /* Target vector read/write partial wrapper functions. | |
1427 | ||
1428 | NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial | |
1429 | (inbuf, outbuf)", instead of separate read/write methods, make life | |
1430 | easier. */ | |
1431 | ||
13547ab6 | 1432 | static LONGEST |
1e3ff5ad AC |
1433 | target_read_partial (struct target_ops *ops, |
1434 | enum target_object object, | |
1b0ba102 | 1435 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1436 | ULONGEST offset, LONGEST len) |
1437 | { | |
27394598 | 1438 | return target_xfer_partial (ops, object, annex, buf, NULL, offset, len); |
1e3ff5ad AC |
1439 | } |
1440 | ||
13547ab6 | 1441 | static LONGEST |
1e3ff5ad AC |
1442 | target_write_partial (struct target_ops *ops, |
1443 | enum target_object object, | |
1b0ba102 | 1444 | const char *annex, const gdb_byte *buf, |
1e3ff5ad AC |
1445 | ULONGEST offset, LONGEST len) |
1446 | { | |
27394598 | 1447 | return target_xfer_partial (ops, object, annex, NULL, buf, offset, len); |
1e3ff5ad AC |
1448 | } |
1449 | ||
1450 | /* Wrappers to perform the full transfer. */ | |
1451 | LONGEST | |
1452 | target_read (struct target_ops *ops, | |
1453 | enum target_object object, | |
1b0ba102 | 1454 | const char *annex, gdb_byte *buf, |
1e3ff5ad AC |
1455 | ULONGEST offset, LONGEST len) |
1456 | { | |
1457 | LONGEST xfered = 0; | |
1458 | while (xfered < len) | |
1459 | { | |
0088c768 | 1460 | LONGEST xfer = target_read_partial (ops, object, annex, |
fc1a4b47 | 1461 | (gdb_byte *) buf + xfered, |
0088c768 | 1462 | offset + xfered, len - xfered); |
1e3ff5ad | 1463 | /* Call an observer, notifying them of the xfer progress? */ |
13547ab6 DJ |
1464 | if (xfer == 0) |
1465 | return xfered; | |
1466 | if (xfer < 0) | |
0088c768 | 1467 | return -1; |
1e3ff5ad AC |
1468 | xfered += xfer; |
1469 | QUIT; | |
1470 | } | |
1471 | return len; | |
1472 | } | |
1473 | ||
d5086790 VP |
1474 | LONGEST |
1475 | target_read_until_error (struct target_ops *ops, | |
1476 | enum target_object object, | |
1477 | const char *annex, gdb_byte *buf, | |
1478 | ULONGEST offset, LONGEST len) | |
1479 | { | |
1480 | LONGEST xfered = 0; | |
1481 | while (xfered < len) | |
1482 | { | |
1483 | LONGEST xfer = target_read_partial (ops, object, annex, | |
1484 | (gdb_byte *) buf + xfered, | |
1485 | offset + xfered, len - xfered); | |
1486 | /* Call an observer, notifying them of the xfer progress? */ | |
1487 | if (xfer == 0) | |
1488 | return xfered; | |
1489 | if (xfer < 0) | |
1490 | { | |
1491 | /* We've got an error. Try to read in smaller blocks. */ | |
1492 | ULONGEST start = offset + xfered; | |
1493 | ULONGEST remaining = len - xfered; | |
1494 | ULONGEST half; | |
1495 | ||
1496 | /* If an attempt was made to read a random memory address, | |
1497 | it's likely that the very first byte is not accessible. | |
1498 | Try reading the first byte, to avoid doing log N tries | |
1499 | below. */ | |
1500 | xfer = target_read_partial (ops, object, annex, | |
1501 | (gdb_byte *) buf + xfered, start, 1); | |
1502 | if (xfer <= 0) | |
1503 | return xfered; | |
1504 | start += 1; | |
1505 | remaining -= 1; | |
1506 | half = remaining/2; | |
1507 | ||
1508 | while (half > 0) | |
1509 | { | |
1510 | xfer = target_read_partial (ops, object, annex, | |
1511 | (gdb_byte *) buf + xfered, | |
1512 | start, half); | |
1513 | if (xfer == 0) | |
1514 | return xfered; | |
1515 | if (xfer < 0) | |
1516 | { | |
1517 | remaining = half; | |
1518 | } | |
1519 | else | |
1520 | { | |
1521 | /* We have successfully read the first half. So, the | |
1522 | error must be in the second half. Adjust start and | |
1523 | remaining to point at the second half. */ | |
1524 | xfered += xfer; | |
1525 | start += xfer; | |
1526 | remaining -= xfer; | |
1527 | } | |
1528 | half = remaining/2; | |
1529 | } | |
1530 | ||
1531 | return xfered; | |
1532 | } | |
1533 | xfered += xfer; | |
1534 | QUIT; | |
1535 | } | |
1536 | return len; | |
1537 | } | |
1538 | ||
1539 | ||
cf7a04e8 DJ |
1540 | /* An alternative to target_write with progress callbacks. */ |
1541 | ||
1e3ff5ad | 1542 | LONGEST |
cf7a04e8 DJ |
1543 | target_write_with_progress (struct target_ops *ops, |
1544 | enum target_object object, | |
1545 | const char *annex, const gdb_byte *buf, | |
1546 | ULONGEST offset, LONGEST len, | |
1547 | void (*progress) (ULONGEST, void *), void *baton) | |
1e3ff5ad AC |
1548 | { |
1549 | LONGEST xfered = 0; | |
a76d924d DJ |
1550 | |
1551 | /* Give the progress callback a chance to set up. */ | |
1552 | if (progress) | |
1553 | (*progress) (0, baton); | |
1554 | ||
1e3ff5ad AC |
1555 | while (xfered < len) |
1556 | { | |
1557 | LONGEST xfer = target_write_partial (ops, object, annex, | |
fc1a4b47 | 1558 | (gdb_byte *) buf + xfered, |
1e3ff5ad | 1559 | offset + xfered, len - xfered); |
cf7a04e8 | 1560 | |
13547ab6 DJ |
1561 | if (xfer == 0) |
1562 | return xfered; | |
1563 | if (xfer < 0) | |
0088c768 | 1564 | return -1; |
cf7a04e8 DJ |
1565 | |
1566 | if (progress) | |
1567 | (*progress) (xfer, baton); | |
1568 | ||
1e3ff5ad AC |
1569 | xfered += xfer; |
1570 | QUIT; | |
1571 | } | |
1572 | return len; | |
1573 | } | |
1574 | ||
cf7a04e8 DJ |
1575 | LONGEST |
1576 | target_write (struct target_ops *ops, | |
1577 | enum target_object object, | |
1578 | const char *annex, const gdb_byte *buf, | |
1579 | ULONGEST offset, LONGEST len) | |
1580 | { | |
1581 | return target_write_with_progress (ops, object, annex, buf, offset, len, | |
1582 | NULL, NULL); | |
1583 | } | |
1584 | ||
159f81f3 DJ |
1585 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1586 | the size of the transferred data. PADDING additional bytes are | |
1587 | available in *BUF_P. This is a helper function for | |
1588 | target_read_alloc; see the declaration of that function for more | |
1589 | information. */ | |
13547ab6 | 1590 | |
159f81f3 DJ |
1591 | static LONGEST |
1592 | target_read_alloc_1 (struct target_ops *ops, enum target_object object, | |
1593 | const char *annex, gdb_byte **buf_p, int padding) | |
13547ab6 DJ |
1594 | { |
1595 | size_t buf_alloc, buf_pos; | |
1596 | gdb_byte *buf; | |
1597 | LONGEST n; | |
1598 | ||
1599 | /* This function does not have a length parameter; it reads the | |
1600 | entire OBJECT). Also, it doesn't support objects fetched partly | |
1601 | from one target and partly from another (in a different stratum, | |
1602 | e.g. a core file and an executable). Both reasons make it | |
1603 | unsuitable for reading memory. */ | |
1604 | gdb_assert (object != TARGET_OBJECT_MEMORY); | |
1605 | ||
1606 | /* Start by reading up to 4K at a time. The target will throttle | |
1607 | this number down if necessary. */ | |
1608 | buf_alloc = 4096; | |
1609 | buf = xmalloc (buf_alloc); | |
1610 | buf_pos = 0; | |
1611 | while (1) | |
1612 | { | |
1613 | n = target_read_partial (ops, object, annex, &buf[buf_pos], | |
159f81f3 | 1614 | buf_pos, buf_alloc - buf_pos - padding); |
13547ab6 DJ |
1615 | if (n < 0) |
1616 | { | |
1617 | /* An error occurred. */ | |
1618 | xfree (buf); | |
1619 | return -1; | |
1620 | } | |
1621 | else if (n == 0) | |
1622 | { | |
1623 | /* Read all there was. */ | |
1624 | if (buf_pos == 0) | |
1625 | xfree (buf); | |
1626 | else | |
1627 | *buf_p = buf; | |
1628 | return buf_pos; | |
1629 | } | |
1630 | ||
1631 | buf_pos += n; | |
1632 | ||
1633 | /* If the buffer is filling up, expand it. */ | |
1634 | if (buf_alloc < buf_pos * 2) | |
1635 | { | |
1636 | buf_alloc *= 2; | |
1637 | buf = xrealloc (buf, buf_alloc); | |
1638 | } | |
1639 | ||
1640 | QUIT; | |
1641 | } | |
1642 | } | |
1643 | ||
159f81f3 DJ |
1644 | /* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return |
1645 | the size of the transferred data. See the declaration in "target.h" | |
1646 | function for more information about the return value. */ | |
1647 | ||
1648 | LONGEST | |
1649 | target_read_alloc (struct target_ops *ops, enum target_object object, | |
1650 | const char *annex, gdb_byte **buf_p) | |
1651 | { | |
1652 | return target_read_alloc_1 (ops, object, annex, buf_p, 0); | |
1653 | } | |
1654 | ||
1655 | /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and | |
1656 | returned as a string, allocated using xmalloc. If an error occurs | |
1657 | or the transfer is unsupported, NULL is returned. Empty objects | |
1658 | are returned as allocated but empty strings. A warning is issued | |
1659 | if the result contains any embedded NUL bytes. */ | |
1660 | ||
1661 | char * | |
1662 | target_read_stralloc (struct target_ops *ops, enum target_object object, | |
1663 | const char *annex) | |
1664 | { | |
1665 | gdb_byte *buffer; | |
1666 | LONGEST transferred; | |
1667 | ||
1668 | transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1); | |
1669 | ||
1670 | if (transferred < 0) | |
1671 | return NULL; | |
1672 | ||
1673 | if (transferred == 0) | |
1674 | return xstrdup (""); | |
1675 | ||
1676 | buffer[transferred] = 0; | |
1677 | if (strlen (buffer) < transferred) | |
1678 | warning (_("target object %d, annex %s, " | |
1679 | "contained unexpected null characters"), | |
1680 | (int) object, annex ? annex : "(none)"); | |
1681 | ||
1682 | return (char *) buffer; | |
1683 | } | |
1684 | ||
b6591e8b AC |
1685 | /* Memory transfer methods. */ |
1686 | ||
1687 | void | |
1b0ba102 | 1688 | get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf, |
b6591e8b AC |
1689 | LONGEST len) |
1690 | { | |
1691 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len) | |
1692 | != len) | |
1693 | memory_error (EIO, addr); | |
1694 | } | |
1695 | ||
1696 | ULONGEST | |
1697 | get_target_memory_unsigned (struct target_ops *ops, | |
1698 | CORE_ADDR addr, int len) | |
1699 | { | |
f6519ebc | 1700 | gdb_byte buf[sizeof (ULONGEST)]; |
b6591e8b AC |
1701 | |
1702 | gdb_assert (len <= sizeof (buf)); | |
1703 | get_target_memory (ops, addr, buf, len); | |
1704 | return extract_unsigned_integer (buf, len); | |
1705 | } | |
1706 | ||
c906108c | 1707 | static void |
fba45db2 | 1708 | target_info (char *args, int from_tty) |
c906108c SS |
1709 | { |
1710 | struct target_ops *t; | |
c906108c | 1711 | int has_all_mem = 0; |
c5aa993b | 1712 | |
c906108c | 1713 | if (symfile_objfile != NULL) |
a3f17187 | 1714 | printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name); |
c906108c | 1715 | |
258b763a | 1716 | for (t = target_stack; t != NULL; t = t->beneath) |
c906108c | 1717 | { |
c906108c SS |
1718 | if (!t->to_has_memory) |
1719 | continue; | |
1720 | ||
c5aa993b | 1721 | if ((int) (t->to_stratum) <= (int) dummy_stratum) |
c906108c SS |
1722 | continue; |
1723 | if (has_all_mem) | |
a3f17187 | 1724 | printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n")); |
c5aa993b JM |
1725 | printf_unfiltered ("%s:\n", t->to_longname); |
1726 | (t->to_files_info) (t); | |
c906108c SS |
1727 | has_all_mem = t->to_has_all_memory; |
1728 | } | |
1729 | } | |
1730 | ||
fd79ecee DJ |
1731 | /* This function is called before any new inferior is created, e.g. |
1732 | by running a program, attaching, or connecting to a target. | |
1733 | It cleans up any state from previous invocations which might | |
1734 | change between runs. This is a subset of what target_preopen | |
1735 | resets (things which might change between targets). */ | |
1736 | ||
1737 | void | |
1738 | target_pre_inferior (int from_tty) | |
1739 | { | |
b9db4ced UW |
1740 | /* Clear out solib state. Otherwise the solib state of the previous |
1741 | inferior might have survived and is entirely wrong for the new | |
1742 | target. This has been observed on GNU/Linux using glibc 2.3. How | |
1743 | to reproduce: | |
1744 | ||
1745 | bash$ ./foo& | |
1746 | [1] 4711 | |
1747 | bash$ ./foo& | |
1748 | [1] 4712 | |
1749 | bash$ gdb ./foo | |
1750 | [...] | |
1751 | (gdb) attach 4711 | |
1752 | (gdb) detach | |
1753 | (gdb) attach 4712 | |
1754 | Cannot access memory at address 0xdeadbeef | |
1755 | */ | |
b9db4ced | 1756 | |
50c71eaf PA |
1757 | /* In some OSs, the shared library list is the same/global/shared |
1758 | across inferiors. If code is shared between processes, so are | |
1759 | memory regions and features. */ | |
1760 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
1761 | { | |
1762 | no_shared_libraries (NULL, from_tty); | |
1763 | ||
1764 | invalidate_target_mem_regions (); | |
424163ea | 1765 | |
50c71eaf PA |
1766 | target_clear_description (); |
1767 | } | |
fd79ecee DJ |
1768 | } |
1769 | ||
c906108c SS |
1770 | /* This is to be called by the open routine before it does |
1771 | anything. */ | |
1772 | ||
1773 | void | |
fba45db2 | 1774 | target_preopen (int from_tty) |
c906108c | 1775 | { |
c5aa993b | 1776 | dont_repeat (); |
c906108c SS |
1777 | |
1778 | if (target_has_execution) | |
c5aa993b | 1779 | { |
adf40b2e | 1780 | if (!from_tty |
e2e0b3e5 | 1781 | || query (_("A program is being debugged already. Kill it? "))) |
c5aa993b | 1782 | target_kill (); |
c906108c | 1783 | else |
8a3fe4f8 | 1784 | error (_("Program not killed.")); |
c906108c SS |
1785 | } |
1786 | ||
1787 | /* Calling target_kill may remove the target from the stack. But if | |
1788 | it doesn't (which seems like a win for UDI), remove it now. */ | |
87ab71f0 PA |
1789 | /* Leave the exec target, though. The user may be switching from a |
1790 | live process to a core of the same program. */ | |
1791 | pop_all_targets_above (file_stratum, 0); | |
fd79ecee DJ |
1792 | |
1793 | target_pre_inferior (from_tty); | |
c906108c SS |
1794 | } |
1795 | ||
1796 | /* Detach a target after doing deferred register stores. */ | |
1797 | ||
1798 | void | |
fba45db2 | 1799 | target_detach (char *args, int from_tty) |
c906108c | 1800 | { |
136d6dae VP |
1801 | struct target_ops* t; |
1802 | ||
2567c7d9 | 1803 | if (gdbarch_has_global_breakpoints (target_gdbarch)) |
50c71eaf PA |
1804 | /* Don't remove global breakpoints here. They're removed on |
1805 | disconnection from the target. */ | |
1806 | ; | |
1807 | else | |
1808 | /* If we're in breakpoints-always-inserted mode, have to remove | |
1809 | them before detaching. */ | |
1810 | remove_breakpoints (); | |
74960c60 | 1811 | |
136d6dae VP |
1812 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
1813 | { | |
1814 | if (t->to_detach != NULL) | |
1815 | { | |
1816 | t->to_detach (t, args, from_tty); | |
947b8855 PA |
1817 | if (targetdebug) |
1818 | fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", | |
1819 | args, from_tty); | |
136d6dae VP |
1820 | return; |
1821 | } | |
1822 | } | |
1823 | ||
1824 | internal_error (__FILE__, __LINE__, "could not find a target to detach"); | |
c906108c SS |
1825 | } |
1826 | ||
6ad8ae5c DJ |
1827 | void |
1828 | target_disconnect (char *args, int from_tty) | |
1829 | { | |
597320e7 DJ |
1830 | struct target_ops *t; |
1831 | ||
50c71eaf PA |
1832 | /* If we're in breakpoints-always-inserted mode or if breakpoints |
1833 | are global across processes, we have to remove them before | |
1834 | disconnecting. */ | |
74960c60 VP |
1835 | remove_breakpoints (); |
1836 | ||
597320e7 DJ |
1837 | for (t = current_target.beneath; t != NULL; t = t->beneath) |
1838 | if (t->to_disconnect != NULL) | |
1839 | { | |
1840 | if (targetdebug) | |
1841 | fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n", | |
1842 | args, from_tty); | |
1843 | t->to_disconnect (t, args, from_tty); | |
1844 | return; | |
1845 | } | |
1846 | ||
1847 | tcomplain (); | |
6ad8ae5c DJ |
1848 | } |
1849 | ||
117de6a9 | 1850 | ptid_t |
47608cb1 | 1851 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
117de6a9 PA |
1852 | { |
1853 | struct target_ops *t; | |
1854 | ||
1855 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1856 | { | |
1857 | if (t->to_wait != NULL) | |
1858 | { | |
47608cb1 | 1859 | ptid_t retval = (*t->to_wait) (t, ptid, status, options); |
117de6a9 PA |
1860 | |
1861 | if (targetdebug) | |
1862 | { | |
1863 | char *status_string; | |
1864 | ||
1865 | status_string = target_waitstatus_to_string (status); | |
1866 | fprintf_unfiltered (gdb_stdlog, | |
1867 | "target_wait (%d, status) = %d, %s\n", | |
1868 | PIDGET (ptid), PIDGET (retval), | |
1869 | status_string); | |
1870 | xfree (status_string); | |
1871 | } | |
1872 | ||
1873 | return retval; | |
1874 | } | |
1875 | } | |
1876 | ||
1877 | noprocess (); | |
1878 | } | |
1879 | ||
1880 | char * | |
1881 | target_pid_to_str (ptid_t ptid) | |
1882 | { | |
1883 | struct target_ops *t; | |
1884 | ||
1885 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1886 | { | |
1887 | if (t->to_pid_to_str != NULL) | |
1888 | return (*t->to_pid_to_str) (t, ptid); | |
1889 | } | |
1890 | ||
1891 | return normal_pid_to_str (ptid); | |
1892 | } | |
1893 | ||
e1ac3328 VP |
1894 | void |
1895 | target_resume (ptid_t ptid, int step, enum target_signal signal) | |
1896 | { | |
28439f5e PA |
1897 | struct target_ops *t; |
1898 | ||
e1ac3328 | 1899 | dcache_invalidate (target_dcache); |
28439f5e PA |
1900 | |
1901 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1902 | { | |
1903 | if (t->to_resume != NULL) | |
1904 | { | |
1905 | t->to_resume (t, ptid, step, signal); | |
1906 | if (targetdebug) | |
1907 | fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", | |
1908 | PIDGET (ptid), | |
1909 | step ? "step" : "continue", | |
1910 | target_signal_to_name (signal)); | |
1911 | ||
1912 | set_executing (ptid, 1); | |
1913 | set_running (ptid, 1); | |
1914 | return; | |
1915 | } | |
1916 | } | |
1917 | ||
1918 | noprocess (); | |
e1ac3328 | 1919 | } |
ee057212 DJ |
1920 | /* Look through the list of possible targets for a target that can |
1921 | follow forks. */ | |
1922 | ||
1923 | int | |
1924 | target_follow_fork (int follow_child) | |
1925 | { | |
1926 | struct target_ops *t; | |
1927 | ||
1928 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1929 | { | |
1930 | if (t->to_follow_fork != NULL) | |
1931 | { | |
1932 | int retval = t->to_follow_fork (t, follow_child); | |
1933 | if (targetdebug) | |
1934 | fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n", | |
1935 | follow_child, retval); | |
1936 | return retval; | |
1937 | } | |
1938 | } | |
1939 | ||
1940 | /* Some target returned a fork event, but did not know how to follow it. */ | |
1941 | internal_error (__FILE__, __LINE__, | |
1942 | "could not find a target to follow fork"); | |
1943 | } | |
1944 | ||
136d6dae VP |
1945 | void |
1946 | target_mourn_inferior (void) | |
1947 | { | |
1948 | struct target_ops *t; | |
1949 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
1950 | { | |
1951 | if (t->to_mourn_inferior != NULL) | |
1952 | { | |
1953 | t->to_mourn_inferior (t); | |
947b8855 PA |
1954 | if (targetdebug) |
1955 | fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n"); | |
efbd6e75 JB |
1956 | |
1957 | /* We no longer need to keep handles on any of the object files. | |
1958 | Make sure to release them to avoid unnecessarily locking any | |
1959 | of them while we're not actually debugging. */ | |
1960 | bfd_cache_close_all (); | |
1961 | ||
136d6dae VP |
1962 | return; |
1963 | } | |
1964 | } | |
1965 | ||
1966 | internal_error (__FILE__, __LINE__, | |
1967 | "could not find a target to follow mourn inferiour"); | |
1968 | } | |
1969 | ||
424163ea DJ |
1970 | /* Look for a target which can describe architectural features, starting |
1971 | from TARGET. If we find one, return its description. */ | |
1972 | ||
1973 | const struct target_desc * | |
1974 | target_read_description (struct target_ops *target) | |
1975 | { | |
1976 | struct target_ops *t; | |
1977 | ||
1978 | for (t = target; t != NULL; t = t->beneath) | |
1979 | if (t->to_read_description != NULL) | |
1980 | { | |
1981 | const struct target_desc *tdesc; | |
1982 | ||
1983 | tdesc = t->to_read_description (t); | |
1984 | if (tdesc) | |
1985 | return tdesc; | |
1986 | } | |
1987 | ||
1988 | return NULL; | |
1989 | } | |
1990 | ||
08388c79 DE |
1991 | /* The default implementation of to_search_memory. |
1992 | This implements a basic search of memory, reading target memory and | |
1993 | performing the search here (as opposed to performing the search in on the | |
1994 | target side with, for example, gdbserver). */ | |
1995 | ||
1996 | int | |
1997 | simple_search_memory (struct target_ops *ops, | |
1998 | CORE_ADDR start_addr, ULONGEST search_space_len, | |
1999 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2000 | CORE_ADDR *found_addrp) | |
2001 | { | |
2002 | /* NOTE: also defined in find.c testcase. */ | |
2003 | #define SEARCH_CHUNK_SIZE 16000 | |
2004 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
2005 | /* Buffer to hold memory contents for searching. */ | |
2006 | gdb_byte *search_buf; | |
2007 | unsigned search_buf_size; | |
2008 | struct cleanup *old_cleanups; | |
2009 | ||
2010 | search_buf_size = chunk_size + pattern_len - 1; | |
2011 | ||
2012 | /* No point in trying to allocate a buffer larger than the search space. */ | |
2013 | if (search_space_len < search_buf_size) | |
2014 | search_buf_size = search_space_len; | |
2015 | ||
2016 | search_buf = malloc (search_buf_size); | |
2017 | if (search_buf == NULL) | |
5e1471f5 | 2018 | error (_("Unable to allocate memory to perform the search.")); |
08388c79 DE |
2019 | old_cleanups = make_cleanup (free_current_contents, &search_buf); |
2020 | ||
2021 | /* Prime the search buffer. */ | |
2022 | ||
2023 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2024 | search_buf, start_addr, search_buf_size) != search_buf_size) | |
2025 | { | |
5e1471f5 | 2026 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
2027 | hex_string (start_addr)); |
2028 | do_cleanups (old_cleanups); | |
2029 | return -1; | |
2030 | } | |
2031 | ||
2032 | /* Perform the search. | |
2033 | ||
2034 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
2035 | When we've scanned N bytes we copy the trailing bytes to the start and | |
2036 | read in another N bytes. */ | |
2037 | ||
2038 | while (search_space_len >= pattern_len) | |
2039 | { | |
2040 | gdb_byte *found_ptr; | |
2041 | unsigned nr_search_bytes = min (search_space_len, search_buf_size); | |
2042 | ||
2043 | found_ptr = memmem (search_buf, nr_search_bytes, | |
2044 | pattern, pattern_len); | |
2045 | ||
2046 | if (found_ptr != NULL) | |
2047 | { | |
2048 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
2049 | *found_addrp = found_addr; | |
2050 | do_cleanups (old_cleanups); | |
2051 | return 1; | |
2052 | } | |
2053 | ||
2054 | /* Not found in this chunk, skip to next chunk. */ | |
2055 | ||
2056 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
2057 | if (search_space_len >= chunk_size) | |
2058 | search_space_len -= chunk_size; | |
2059 | else | |
2060 | search_space_len = 0; | |
2061 | ||
2062 | if (search_space_len >= pattern_len) | |
2063 | { | |
2064 | unsigned keep_len = search_buf_size - chunk_size; | |
2065 | CORE_ADDR read_addr = start_addr + keep_len; | |
2066 | int nr_to_read; | |
2067 | ||
2068 | /* Copy the trailing part of the previous iteration to the front | |
2069 | of the buffer for the next iteration. */ | |
2070 | gdb_assert (keep_len == pattern_len - 1); | |
2071 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
2072 | ||
2073 | nr_to_read = min (search_space_len - keep_len, chunk_size); | |
2074 | ||
2075 | if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, | |
2076 | search_buf + keep_len, read_addr, | |
2077 | nr_to_read) != nr_to_read) | |
2078 | { | |
5e1471f5 | 2079 | warning (_("Unable to access target memory at %s, halting search."), |
08388c79 DE |
2080 | hex_string (read_addr)); |
2081 | do_cleanups (old_cleanups); | |
2082 | return -1; | |
2083 | } | |
2084 | ||
2085 | start_addr += chunk_size; | |
2086 | } | |
2087 | } | |
2088 | ||
2089 | /* Not found. */ | |
2090 | ||
2091 | do_cleanups (old_cleanups); | |
2092 | return 0; | |
2093 | } | |
2094 | ||
2095 | /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the | |
2096 | sequence of bytes in PATTERN with length PATTERN_LEN. | |
2097 | ||
2098 | The result is 1 if found, 0 if not found, and -1 if there was an error | |
2099 | requiring halting of the search (e.g. memory read error). | |
2100 | If the pattern is found the address is recorded in FOUND_ADDRP. */ | |
2101 | ||
2102 | int | |
2103 | target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len, | |
2104 | const gdb_byte *pattern, ULONGEST pattern_len, | |
2105 | CORE_ADDR *found_addrp) | |
2106 | { | |
2107 | struct target_ops *t; | |
2108 | int found; | |
2109 | ||
2110 | /* We don't use INHERIT to set current_target.to_search_memory, | |
2111 | so we have to scan the target stack and handle targetdebug | |
2112 | ourselves. */ | |
2113 | ||
2114 | if (targetdebug) | |
2115 | fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n", | |
2116 | hex_string (start_addr)); | |
2117 | ||
2118 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2119 | if (t->to_search_memory != NULL) | |
2120 | break; | |
2121 | ||
2122 | if (t != NULL) | |
2123 | { | |
2124 | found = t->to_search_memory (t, start_addr, search_space_len, | |
2125 | pattern, pattern_len, found_addrp); | |
2126 | } | |
2127 | else | |
2128 | { | |
2129 | /* If a special version of to_search_memory isn't available, use the | |
2130 | simple version. */ | |
2131 | found = simple_search_memory (¤t_target, | |
2132 | start_addr, search_space_len, | |
2133 | pattern, pattern_len, found_addrp); | |
2134 | } | |
2135 | ||
2136 | if (targetdebug) | |
2137 | fprintf_unfiltered (gdb_stdlog, " = %d\n", found); | |
2138 | ||
2139 | return found; | |
2140 | } | |
2141 | ||
8edfe269 DJ |
2142 | /* Look through the currently pushed targets. If none of them will |
2143 | be able to restart the currently running process, issue an error | |
2144 | message. */ | |
2145 | ||
2146 | void | |
2147 | target_require_runnable (void) | |
2148 | { | |
2149 | struct target_ops *t; | |
2150 | ||
2151 | for (t = target_stack; t != NULL; t = t->beneath) | |
2152 | { | |
2153 | /* If this target knows how to create a new program, then | |
2154 | assume we will still be able to after killing the current | |
2155 | one. Either killing and mourning will not pop T, or else | |
2156 | find_default_run_target will find it again. */ | |
2157 | if (t->to_create_inferior != NULL) | |
2158 | return; | |
2159 | ||
2160 | /* Do not worry about thread_stratum targets that can not | |
2161 | create inferiors. Assume they will be pushed again if | |
2162 | necessary, and continue to the process_stratum. */ | |
2163 | if (t->to_stratum == thread_stratum) | |
2164 | continue; | |
2165 | ||
2166 | error (_("\ | |
2167 | The \"%s\" target does not support \"run\". Try \"help target\" or \"continue\"."), | |
2168 | t->to_shortname); | |
2169 | } | |
2170 | ||
2171 | /* This function is only called if the target is running. In that | |
2172 | case there should have been a process_stratum target and it | |
2173 | should either know how to create inferiors, or not... */ | |
2174 | internal_error (__FILE__, __LINE__, "No targets found"); | |
2175 | } | |
2176 | ||
c906108c SS |
2177 | /* Look through the list of possible targets for a target that can |
2178 | execute a run or attach command without any other data. This is | |
2179 | used to locate the default process stratum. | |
2180 | ||
5f667f2d PA |
2181 | If DO_MESG is not NULL, the result is always valid (error() is |
2182 | called for errors); else, return NULL on error. */ | |
c906108c SS |
2183 | |
2184 | static struct target_ops * | |
fba45db2 | 2185 | find_default_run_target (char *do_mesg) |
c906108c SS |
2186 | { |
2187 | struct target_ops **t; | |
2188 | struct target_ops *runable = NULL; | |
2189 | int count; | |
2190 | ||
2191 | count = 0; | |
2192 | ||
2193 | for (t = target_structs; t < target_structs + target_struct_size; | |
2194 | ++t) | |
2195 | { | |
c5aa993b | 2196 | if ((*t)->to_can_run && target_can_run (*t)) |
c906108c SS |
2197 | { |
2198 | runable = *t; | |
2199 | ++count; | |
2200 | } | |
2201 | } | |
2202 | ||
2203 | if (count != 1) | |
5f667f2d PA |
2204 | { |
2205 | if (do_mesg) | |
2206 | error (_("Don't know how to %s. Try \"help target\"."), do_mesg); | |
2207 | else | |
2208 | return NULL; | |
2209 | } | |
c906108c SS |
2210 | |
2211 | return runable; | |
2212 | } | |
2213 | ||
2214 | void | |
136d6dae | 2215 | find_default_attach (struct target_ops *ops, char *args, int from_tty) |
c906108c SS |
2216 | { |
2217 | struct target_ops *t; | |
2218 | ||
c5aa993b | 2219 | t = find_default_run_target ("attach"); |
136d6dae | 2220 | (t->to_attach) (t, args, from_tty); |
c906108c SS |
2221 | return; |
2222 | } | |
2223 | ||
c906108c | 2224 | void |
136d6dae VP |
2225 | find_default_create_inferior (struct target_ops *ops, |
2226 | char *exec_file, char *allargs, char **env, | |
c27cda74 | 2227 | int from_tty) |
c906108c SS |
2228 | { |
2229 | struct target_ops *t; | |
2230 | ||
c5aa993b | 2231 | t = find_default_run_target ("run"); |
136d6dae | 2232 | (t->to_create_inferior) (t, exec_file, allargs, env, from_tty); |
c906108c SS |
2233 | return; |
2234 | } | |
2235 | ||
2c0b251b | 2236 | static int |
b84876c2 PA |
2237 | find_default_can_async_p (void) |
2238 | { | |
2239 | struct target_ops *t; | |
2240 | ||
5f667f2d PA |
2241 | /* This may be called before the target is pushed on the stack; |
2242 | look for the default process stratum. If there's none, gdb isn't | |
2243 | configured with a native debugger, and target remote isn't | |
2244 | connected yet. */ | |
2245 | t = find_default_run_target (NULL); | |
2246 | if (t && t->to_can_async_p) | |
b84876c2 PA |
2247 | return (t->to_can_async_p) (); |
2248 | return 0; | |
2249 | } | |
2250 | ||
2c0b251b | 2251 | static int |
b84876c2 PA |
2252 | find_default_is_async_p (void) |
2253 | { | |
2254 | struct target_ops *t; | |
2255 | ||
5f667f2d PA |
2256 | /* This may be called before the target is pushed on the stack; |
2257 | look for the default process stratum. If there's none, gdb isn't | |
2258 | configured with a native debugger, and target remote isn't | |
2259 | connected yet. */ | |
2260 | t = find_default_run_target (NULL); | |
2261 | if (t && t->to_is_async_p) | |
b84876c2 PA |
2262 | return (t->to_is_async_p) (); |
2263 | return 0; | |
2264 | } | |
2265 | ||
2c0b251b | 2266 | static int |
9908b566 VP |
2267 | find_default_supports_non_stop (void) |
2268 | { | |
2269 | struct target_ops *t; | |
2270 | ||
2271 | t = find_default_run_target (NULL); | |
2272 | if (t && t->to_supports_non_stop) | |
2273 | return (t->to_supports_non_stop) (); | |
2274 | return 0; | |
2275 | } | |
2276 | ||
2277 | int | |
2c0b251b | 2278 | target_supports_non_stop (void) |
9908b566 VP |
2279 | { |
2280 | struct target_ops *t; | |
2281 | for (t = ¤t_target; t != NULL; t = t->beneath) | |
2282 | if (t->to_supports_non_stop) | |
2283 | return t->to_supports_non_stop (); | |
2284 | ||
2285 | return 0; | |
2286 | } | |
2287 | ||
2288 | ||
07e059b5 VP |
2289 | char * |
2290 | target_get_osdata (const char *type) | |
2291 | { | |
2292 | char *document; | |
2293 | struct target_ops *t; | |
2294 | ||
739ef7fb PA |
2295 | /* If we're already connected to something that can get us OS |
2296 | related data, use it. Otherwise, try using the native | |
2297 | target. */ | |
2298 | if (current_target.to_stratum >= process_stratum) | |
6d097e65 | 2299 | t = current_target.beneath; |
739ef7fb PA |
2300 | else |
2301 | t = find_default_run_target ("get OS data"); | |
07e059b5 VP |
2302 | |
2303 | if (!t) | |
2304 | return NULL; | |
2305 | ||
6d097e65 | 2306 | return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type); |
07e059b5 VP |
2307 | } |
2308 | ||
e0d24f8d WZ |
2309 | static int |
2310 | default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2311 | { | |
ffe5a37e | 2312 | return (len <= gdbarch_ptr_bit (target_gdbarch) / TARGET_CHAR_BIT); |
ccaa32c7 GS |
2313 | } |
2314 | ||
5009afc5 AS |
2315 | static int |
2316 | default_watchpoint_addr_within_range (struct target_ops *target, | |
2317 | CORE_ADDR addr, | |
2318 | CORE_ADDR start, int length) | |
2319 | { | |
2320 | return addr >= start && addr < start + length; | |
2321 | } | |
2322 | ||
c906108c | 2323 | static int |
fba45db2 | 2324 | return_zero (void) |
c906108c SS |
2325 | { |
2326 | return 0; | |
2327 | } | |
2328 | ||
2329 | static int | |
fba45db2 | 2330 | return_one (void) |
c906108c SS |
2331 | { |
2332 | return 1; | |
2333 | } | |
2334 | ||
ccaa32c7 GS |
2335 | static int |
2336 | return_minus_one (void) | |
2337 | { | |
2338 | return -1; | |
2339 | } | |
2340 | ||
6426a772 JM |
2341 | /* |
2342 | * Resize the to_sections pointer. Also make sure that anyone that | |
2343 | * was holding on to an old value of it gets updated. | |
2344 | * Returns the old size. | |
2345 | */ | |
2346 | ||
2347 | int | |
2348 | target_resize_to_sections (struct target_ops *target, int num_added) | |
2349 | { | |
2350 | struct target_ops **t; | |
2351 | struct section_table *old_value; | |
2352 | int old_count; | |
2353 | ||
2354 | old_value = target->to_sections; | |
2355 | ||
2356 | if (target->to_sections) | |
2357 | { | |
2358 | old_count = target->to_sections_end - target->to_sections; | |
2359 | target->to_sections = (struct section_table *) | |
2360 | xrealloc ((char *) target->to_sections, | |
2361 | (sizeof (struct section_table)) * (num_added + old_count)); | |
2362 | } | |
2363 | else | |
2364 | { | |
2365 | old_count = 0; | |
2366 | target->to_sections = (struct section_table *) | |
2367 | xmalloc ((sizeof (struct section_table)) * num_added); | |
2368 | } | |
2369 | target->to_sections_end = target->to_sections + (num_added + old_count); | |
2370 | ||
2371 | /* Check to see if anyone else was pointing to this structure. | |
2372 | If old_value was null, then no one was. */ | |
2bc416ba | 2373 | |
6426a772 JM |
2374 | if (old_value) |
2375 | { | |
2376 | for (t = target_structs; t < target_structs + target_struct_size; | |
2377 | ++t) | |
2378 | { | |
2379 | if ((*t)->to_sections == old_value) | |
2380 | { | |
2381 | (*t)->to_sections = target->to_sections; | |
2382 | (*t)->to_sections_end = target->to_sections_end; | |
2383 | } | |
2384 | } | |
e354df01 NW |
2385 | /* There is a flattened view of the target stack in current_target, |
2386 | so its to_sections pointer might also need updating. */ | |
2387 | if (current_target.to_sections == old_value) | |
2388 | { | |
2389 | current_target.to_sections = target->to_sections; | |
2390 | current_target.to_sections_end = target->to_sections_end; | |
2391 | } | |
6426a772 | 2392 | } |
2bc416ba | 2393 | |
6426a772 JM |
2394 | return old_count; |
2395 | ||
2396 | } | |
2397 | ||
07cd4b97 JB |
2398 | /* Remove all target sections taken from ABFD. |
2399 | ||
2400 | Scan the current target stack for targets whose section tables | |
2401 | refer to sections from BFD, and remove those sections. We use this | |
2402 | when we notice that the inferior has unloaded a shared object, for | |
2403 | example. */ | |
2404 | void | |
2405 | remove_target_sections (bfd *abfd) | |
2406 | { | |
2407 | struct target_ops **t; | |
2408 | ||
2409 | for (t = target_structs; t < target_structs + target_struct_size; t++) | |
2410 | { | |
2411 | struct section_table *src, *dest; | |
2412 | ||
2413 | dest = (*t)->to_sections; | |
2414 | for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++) | |
2415 | if (src->bfd != abfd) | |
2416 | { | |
2417 | /* Keep this section. */ | |
2418 | if (dest < src) *dest = *src; | |
2419 | dest++; | |
2420 | } | |
2421 | ||
2422 | /* If we've dropped any sections, resize the section table. */ | |
2423 | if (dest < src) | |
2424 | target_resize_to_sections (*t, dest - src); | |
2425 | } | |
2426 | } | |
2427 | ||
2428 | ||
2429 | ||
2430 | ||
7a292a7a SS |
2431 | /* Find a single runnable target in the stack and return it. If for |
2432 | some reason there is more than one, return NULL. */ | |
2433 | ||
2434 | struct target_ops * | |
fba45db2 | 2435 | find_run_target (void) |
7a292a7a SS |
2436 | { |
2437 | struct target_ops **t; | |
2438 | struct target_ops *runable = NULL; | |
2439 | int count; | |
c5aa993b | 2440 | |
7a292a7a | 2441 | count = 0; |
c5aa993b | 2442 | |
7a292a7a SS |
2443 | for (t = target_structs; t < target_structs + target_struct_size; ++t) |
2444 | { | |
c5aa993b | 2445 | if ((*t)->to_can_run && target_can_run (*t)) |
7a292a7a SS |
2446 | { |
2447 | runable = *t; | |
2448 | ++count; | |
2449 | } | |
2450 | } | |
c5aa993b | 2451 | |
7a292a7a SS |
2452 | return (count == 1 ? runable : NULL); |
2453 | } | |
2454 | ||
ed9a39eb JM |
2455 | /* Find a single core_stratum target in the list of targets and return it. |
2456 | If for some reason there is more than one, return NULL. */ | |
2457 | ||
c906108c | 2458 | struct target_ops * |
fba45db2 | 2459 | find_core_target (void) |
c906108c SS |
2460 | { |
2461 | struct target_ops **t; | |
2462 | struct target_ops *runable = NULL; | |
2463 | int count; | |
c5aa993b | 2464 | |
c906108c | 2465 | count = 0; |
c5aa993b | 2466 | |
c906108c SS |
2467 | for (t = target_structs; t < target_structs + target_struct_size; |
2468 | ++t) | |
2469 | { | |
2470 | if ((*t)->to_stratum == core_stratum) | |
2471 | { | |
2472 | runable = *t; | |
2473 | ++count; | |
2474 | } | |
2475 | } | |
c5aa993b JM |
2476 | |
2477 | return (count == 1 ? runable : NULL); | |
c906108c | 2478 | } |
ed9a39eb JM |
2479 | |
2480 | /* | |
2481 | * Find the next target down the stack from the specified target. | |
2482 | */ | |
2483 | ||
2484 | struct target_ops * | |
fba45db2 | 2485 | find_target_beneath (struct target_ops *t) |
ed9a39eb | 2486 | { |
258b763a | 2487 | return t->beneath; |
ed9a39eb JM |
2488 | } |
2489 | ||
c906108c SS |
2490 | \f |
2491 | /* The inferior process has died. Long live the inferior! */ | |
2492 | ||
2493 | void | |
fba45db2 | 2494 | generic_mourn_inferior (void) |
c906108c | 2495 | { |
7f9f62ba | 2496 | ptid_t ptid; |
c906108c | 2497 | |
7f9f62ba | 2498 | ptid = inferior_ptid; |
39f77062 | 2499 | inferior_ptid = null_ptid; |
7f9f62ba PA |
2500 | |
2501 | if (!ptid_equal (ptid, null_ptid)) | |
2502 | { | |
2503 | int pid = ptid_get_pid (ptid); | |
2504 | delete_inferior (pid); | |
2505 | } | |
2506 | ||
c906108c SS |
2507 | breakpoint_init_inferior (inf_exited); |
2508 | registers_changed (); | |
2509 | ||
c906108c SS |
2510 | reopen_exec_file (); |
2511 | reinit_frame_cache (); | |
2512 | ||
9a4105ab AC |
2513 | if (deprecated_detach_hook) |
2514 | deprecated_detach_hook (); | |
c906108c SS |
2515 | } |
2516 | \f | |
8807d78b | 2517 | /* Helper function for child_wait and the derivatives of child_wait. |
c906108c SS |
2518 | HOSTSTATUS is the waitstatus from wait() or the equivalent; store our |
2519 | translation of that in OURSTATUS. */ | |
2520 | void | |
fba45db2 | 2521 | store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus) |
c906108c | 2522 | { |
c906108c SS |
2523 | if (WIFEXITED (hoststatus)) |
2524 | { | |
2525 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
2526 | ourstatus->value.integer = WEXITSTATUS (hoststatus); | |
2527 | } | |
2528 | else if (!WIFSTOPPED (hoststatus)) | |
2529 | { | |
2530 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
2531 | ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus)); | |
2532 | } | |
2533 | else | |
2534 | { | |
2535 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
2536 | ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus)); | |
2537 | } | |
2538 | } | |
2539 | \f | |
fd0a2a6f MK |
2540 | /* Convert a normal process ID to a string. Returns the string in a |
2541 | static buffer. */ | |
c906108c SS |
2542 | |
2543 | char * | |
39f77062 | 2544 | normal_pid_to_str (ptid_t ptid) |
c906108c | 2545 | { |
fd0a2a6f | 2546 | static char buf[32]; |
c906108c | 2547 | |
5fff8fc0 | 2548 | xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid)); |
c906108c SS |
2549 | return buf; |
2550 | } | |
2551 | ||
2c0b251b | 2552 | static char * |
117de6a9 PA |
2553 | dummy_pid_to_str (struct target_ops *ops, ptid_t ptid) |
2554 | { | |
2555 | return normal_pid_to_str (ptid); | |
2556 | } | |
2557 | ||
be4d1333 | 2558 | /* Error-catcher for target_find_memory_regions */ |
be4d1333 MS |
2559 | static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2) |
2560 | { | |
8a3fe4f8 | 2561 | error (_("No target.")); |
be4d1333 MS |
2562 | return 0; |
2563 | } | |
2564 | ||
2565 | /* Error-catcher for target_make_corefile_notes */ | |
be4d1333 MS |
2566 | static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2) |
2567 | { | |
8a3fe4f8 | 2568 | error (_("No target.")); |
be4d1333 MS |
2569 | return NULL; |
2570 | } | |
2571 | ||
c906108c SS |
2572 | /* Set up the handful of non-empty slots needed by the dummy target |
2573 | vector. */ | |
2574 | ||
2575 | static void | |
fba45db2 | 2576 | init_dummy_target (void) |
c906108c SS |
2577 | { |
2578 | dummy_target.to_shortname = "None"; | |
2579 | dummy_target.to_longname = "None"; | |
2580 | dummy_target.to_doc = ""; | |
2581 | dummy_target.to_attach = find_default_attach; | |
136d6dae VP |
2582 | dummy_target.to_detach = |
2583 | (void (*)(struct target_ops *, char *, int))target_ignore; | |
c906108c | 2584 | dummy_target.to_create_inferior = find_default_create_inferior; |
b84876c2 PA |
2585 | dummy_target.to_can_async_p = find_default_can_async_p; |
2586 | dummy_target.to_is_async_p = find_default_is_async_p; | |
9908b566 | 2587 | dummy_target.to_supports_non_stop = find_default_supports_non_stop; |
117de6a9 | 2588 | dummy_target.to_pid_to_str = dummy_pid_to_str; |
c906108c | 2589 | dummy_target.to_stratum = dummy_stratum; |
be4d1333 MS |
2590 | dummy_target.to_find_memory_regions = dummy_find_memory_regions; |
2591 | dummy_target.to_make_corefile_notes = dummy_make_corefile_notes; | |
0b603eba | 2592 | dummy_target.to_xfer_partial = default_xfer_partial; |
c906108c SS |
2593 | dummy_target.to_magic = OPS_MAGIC; |
2594 | } | |
c906108c | 2595 | \f |
c906108c | 2596 | static void |
fba45db2 | 2597 | debug_to_open (char *args, int from_tty) |
c906108c SS |
2598 | { |
2599 | debug_target.to_open (args, from_tty); | |
2600 | ||
96baa820 | 2601 | fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty); |
c906108c SS |
2602 | } |
2603 | ||
f1c07ab0 AC |
2604 | void |
2605 | target_close (struct target_ops *targ, int quitting) | |
2606 | { | |
2607 | if (targ->to_xclose != NULL) | |
2608 | targ->to_xclose (targ, quitting); | |
2609 | else if (targ->to_close != NULL) | |
2610 | targ->to_close (quitting); | |
947b8855 PA |
2611 | |
2612 | if (targetdebug) | |
2613 | fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting); | |
f1c07ab0 AC |
2614 | } |
2615 | ||
136d6dae VP |
2616 | void |
2617 | target_attach (char *args, int from_tty) | |
2618 | { | |
2619 | struct target_ops *t; | |
2620 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2621 | { | |
2622 | if (t->to_attach != NULL) | |
2623 | { | |
2624 | t->to_attach (t, args, from_tty); | |
947b8855 PA |
2625 | if (targetdebug) |
2626 | fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", | |
2627 | args, from_tty); | |
136d6dae VP |
2628 | return; |
2629 | } | |
2630 | } | |
2631 | ||
2632 | internal_error (__FILE__, __LINE__, | |
2633 | "could not find a target to attach"); | |
2634 | } | |
2635 | ||
28439f5e PA |
2636 | int |
2637 | target_thread_alive (ptid_t ptid) | |
c906108c | 2638 | { |
28439f5e PA |
2639 | struct target_ops *t; |
2640 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2641 | { | |
2642 | if (t->to_thread_alive != NULL) | |
2643 | { | |
2644 | int retval; | |
c906108c | 2645 | |
28439f5e PA |
2646 | retval = t->to_thread_alive (t, ptid); |
2647 | if (targetdebug) | |
2648 | fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n", | |
2649 | PIDGET (ptid), retval); | |
2650 | ||
2651 | return retval; | |
2652 | } | |
2653 | } | |
2654 | ||
2655 | return 0; | |
2656 | } | |
2657 | ||
2658 | void | |
2659 | target_find_new_threads (void) | |
2660 | { | |
2661 | struct target_ops *t; | |
2662 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2663 | { | |
2664 | if (t->to_find_new_threads != NULL) | |
2665 | { | |
2666 | t->to_find_new_threads (t); | |
2667 | if (targetdebug) | |
2668 | fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n"); | |
2669 | ||
2670 | return; | |
2671 | } | |
2672 | } | |
c906108c SS |
2673 | } |
2674 | ||
c906108c | 2675 | static void |
28439f5e | 2676 | debug_to_post_attach (int pid) |
c906108c | 2677 | { |
28439f5e | 2678 | debug_target.to_post_attach (pid); |
c906108c | 2679 | |
28439f5e | 2680 | fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid); |
c906108c SS |
2681 | } |
2682 | ||
f00150c9 DE |
2683 | /* Return a pretty printed form of target_waitstatus. |
2684 | Space for the result is malloc'd, caller must free. */ | |
c906108c | 2685 | |
f00150c9 DE |
2686 | char * |
2687 | target_waitstatus_to_string (const struct target_waitstatus *ws) | |
2688 | { | |
2689 | const char *kind_str = "status->kind = "; | |
c906108c | 2690 | |
f00150c9 | 2691 | switch (ws->kind) |
c906108c SS |
2692 | { |
2693 | case TARGET_WAITKIND_EXITED: | |
f00150c9 DE |
2694 | return xstrprintf ("%sexited, status = %d", |
2695 | kind_str, ws->value.integer); | |
c906108c | 2696 | case TARGET_WAITKIND_STOPPED: |
f00150c9 DE |
2697 | return xstrprintf ("%sstopped, signal = %s", |
2698 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 2699 | case TARGET_WAITKIND_SIGNALLED: |
f00150c9 DE |
2700 | return xstrprintf ("%ssignalled, signal = %s", |
2701 | kind_str, target_signal_to_name (ws->value.sig)); | |
c906108c | 2702 | case TARGET_WAITKIND_LOADED: |
f00150c9 | 2703 | return xstrprintf ("%sloaded", kind_str); |
c906108c | 2704 | case TARGET_WAITKIND_FORKED: |
f00150c9 | 2705 | return xstrprintf ("%sforked", kind_str); |
c906108c | 2706 | case TARGET_WAITKIND_VFORKED: |
f00150c9 | 2707 | return xstrprintf ("%svforked", kind_str); |
c906108c | 2708 | case TARGET_WAITKIND_EXECD: |
f00150c9 DE |
2709 | return xstrprintf ("%sexecd", kind_str); |
2710 | case TARGET_WAITKIND_SYSCALL_ENTRY: | |
2711 | return xstrprintf ("%ssyscall-entry", kind_str); | |
2712 | case TARGET_WAITKIND_SYSCALL_RETURN: | |
2713 | return xstrprintf ("%ssyscall-return", kind_str); | |
c906108c | 2714 | case TARGET_WAITKIND_SPURIOUS: |
f00150c9 DE |
2715 | return xstrprintf ("%sspurious", kind_str); |
2716 | case TARGET_WAITKIND_IGNORE: | |
2717 | return xstrprintf ("%signore", kind_str); | |
2718 | case TARGET_WAITKIND_NO_HISTORY: | |
2719 | return xstrprintf ("%sno-history", kind_str); | |
c906108c | 2720 | default: |
f00150c9 | 2721 | return xstrprintf ("%sunknown???", kind_str); |
c906108c | 2722 | } |
f00150c9 DE |
2723 | } |
2724 | ||
bf0c5130 | 2725 | static void |
56be3814 UW |
2726 | debug_print_register (const char * func, |
2727 | struct regcache *regcache, int regno) | |
bf0c5130 | 2728 | { |
f8d29908 | 2729 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
bf0c5130 | 2730 | fprintf_unfiltered (gdb_stdlog, "%s ", func); |
f8d29908 | 2731 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch) |
f8d29908 UW |
2732 | && gdbarch_register_name (gdbarch, regno) != NULL |
2733 | && gdbarch_register_name (gdbarch, regno)[0] != '\0') | |
2734 | fprintf_unfiltered (gdb_stdlog, "(%s)", | |
2735 | gdbarch_register_name (gdbarch, regno)); | |
bf0c5130 AC |
2736 | else |
2737 | fprintf_unfiltered (gdb_stdlog, "(%d)", regno); | |
0ff58721 | 2738 | if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)) |
bf0c5130 | 2739 | { |
f8d29908 | 2740 | int i, size = register_size (gdbarch, regno); |
d9d9c31f | 2741 | unsigned char buf[MAX_REGISTER_SIZE]; |
0ff58721 | 2742 | regcache_raw_collect (regcache, regno, buf); |
bf0c5130 | 2743 | fprintf_unfiltered (gdb_stdlog, " = "); |
81c4a259 | 2744 | for (i = 0; i < size; i++) |
bf0c5130 AC |
2745 | { |
2746 | fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]); | |
2747 | } | |
81c4a259 | 2748 | if (size <= sizeof (LONGEST)) |
bf0c5130 | 2749 | { |
81c4a259 | 2750 | ULONGEST val = extract_unsigned_integer (buf, size); |
0b1553bc UW |
2751 | fprintf_unfiltered (gdb_stdlog, " %s %s", |
2752 | core_addr_to_string_nz (val), plongest (val)); | |
bf0c5130 AC |
2753 | } |
2754 | } | |
2755 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2756 | } | |
2757 | ||
28439f5e PA |
2758 | void |
2759 | target_fetch_registers (struct regcache *regcache, int regno) | |
c906108c | 2760 | { |
28439f5e PA |
2761 | struct target_ops *t; |
2762 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2763 | { | |
2764 | if (t->to_fetch_registers != NULL) | |
2765 | { | |
2766 | t->to_fetch_registers (t, regcache, regno); | |
2767 | if (targetdebug) | |
2768 | debug_print_register ("target_fetch_registers", regcache, regno); | |
2769 | return; | |
2770 | } | |
2771 | } | |
c906108c SS |
2772 | } |
2773 | ||
28439f5e PA |
2774 | void |
2775 | target_store_registers (struct regcache *regcache, int regno) | |
c906108c | 2776 | { |
28439f5e PA |
2777 | |
2778 | struct target_ops *t; | |
2779 | for (t = current_target.beneath; t != NULL; t = t->beneath) | |
2780 | { | |
2781 | if (t->to_store_registers != NULL) | |
2782 | { | |
2783 | t->to_store_registers (t, regcache, regno); | |
2784 | if (targetdebug) | |
2785 | { | |
2786 | debug_print_register ("target_store_registers", regcache, regno); | |
2787 | } | |
2788 | return; | |
2789 | } | |
2790 | } | |
2791 | ||
2792 | noprocess (); | |
c906108c SS |
2793 | } |
2794 | ||
2795 | static void | |
316f2060 | 2796 | debug_to_prepare_to_store (struct regcache *regcache) |
c906108c | 2797 | { |
316f2060 | 2798 | debug_target.to_prepare_to_store (regcache); |
c906108c | 2799 | |
96baa820 | 2800 | fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n"); |
c906108c SS |
2801 | } |
2802 | ||
2803 | static int | |
961cb7b5 | 2804 | deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len, |
c8e73a31 AC |
2805 | int write, struct mem_attrib *attrib, |
2806 | struct target_ops *target) | |
c906108c SS |
2807 | { |
2808 | int retval; | |
2809 | ||
c8e73a31 AC |
2810 | retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write, |
2811 | attrib, target); | |
c906108c | 2812 | |
96baa820 | 2813 | fprintf_unfiltered (gdb_stdlog, |
53b71562 JB |
2814 | "target_xfer_memory (%s, xxx, %d, %s, xxx) = %d", |
2815 | paddress (memaddr), len, write ? "write" : "read", | |
2816 | retval); | |
c906108c | 2817 | |
c906108c SS |
2818 | if (retval > 0) |
2819 | { | |
2820 | int i; | |
2821 | ||
96baa820 | 2822 | fputs_unfiltered (", bytes =", gdb_stdlog); |
c906108c SS |
2823 | for (i = 0; i < retval; i++) |
2824 | { | |
53b71562 | 2825 | if ((((intptr_t) &(myaddr[i])) & 0xf) == 0) |
333dabeb DJ |
2826 | { |
2827 | if (targetdebug < 2 && i > 0) | |
2828 | { | |
2829 | fprintf_unfiltered (gdb_stdlog, " ..."); | |
2830 | break; | |
2831 | } | |
2832 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
2833 | } | |
2bc416ba | 2834 | |
96baa820 | 2835 | fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff); |
c906108c SS |
2836 | } |
2837 | } | |
2838 | ||
96baa820 | 2839 | fputc_unfiltered ('\n', gdb_stdlog); |
c906108c SS |
2840 | |
2841 | return retval; | |
2842 | } | |
2843 | ||
2844 | static void | |
fba45db2 | 2845 | debug_to_files_info (struct target_ops *target) |
c906108c SS |
2846 | { |
2847 | debug_target.to_files_info (target); | |
2848 | ||
96baa820 | 2849 | fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n"); |
c906108c SS |
2850 | } |
2851 | ||
2852 | static int | |
8181d85f | 2853 | debug_to_insert_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2854 | { |
2855 | int retval; | |
2856 | ||
8181d85f | 2857 | retval = debug_target.to_insert_breakpoint (bp_tgt); |
c906108c | 2858 | |
96baa820 | 2859 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2860 | "target_insert_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2861 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2862 | (unsigned long) retval); |
c906108c SS |
2863 | return retval; |
2864 | } | |
2865 | ||
2866 | static int | |
8181d85f | 2867 | debug_to_remove_breakpoint (struct bp_target_info *bp_tgt) |
c906108c SS |
2868 | { |
2869 | int retval; | |
2870 | ||
8181d85f | 2871 | retval = debug_target.to_remove_breakpoint (bp_tgt); |
c906108c | 2872 | |
96baa820 | 2873 | fprintf_unfiltered (gdb_stdlog, |
104c1213 | 2874 | "target_remove_breakpoint (0x%lx, xxx) = %ld\n", |
8181d85f | 2875 | (unsigned long) bp_tgt->placed_address, |
104c1213 | 2876 | (unsigned long) retval); |
c906108c SS |
2877 | return retval; |
2878 | } | |
2879 | ||
ccaa32c7 GS |
2880 | static int |
2881 | debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty) | |
2882 | { | |
2883 | int retval; | |
2884 | ||
2885 | retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty); | |
2886 | ||
2887 | fprintf_unfiltered (gdb_stdlog, | |
2888 | "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n", | |
2889 | (unsigned long) type, | |
2890 | (unsigned long) cnt, | |
2891 | (unsigned long) from_tty, | |
2892 | (unsigned long) retval); | |
2893 | return retval; | |
2894 | } | |
2895 | ||
e0d24f8d WZ |
2896 | static int |
2897 | debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len) | |
2898 | { | |
2899 | CORE_ADDR retval; | |
2900 | ||
2901 | retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len); | |
2902 | ||
2903 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 2904 | "target_region_ok_for_hw_watchpoint (%ld, %ld) = 0x%lx\n", |
e0d24f8d WZ |
2905 | (unsigned long) addr, |
2906 | (unsigned long) len, | |
2907 | (unsigned long) retval); | |
2908 | return retval; | |
2909 | } | |
2910 | ||
ccaa32c7 GS |
2911 | static int |
2912 | debug_to_stopped_by_watchpoint (void) | |
2913 | { | |
2914 | int retval; | |
2915 | ||
2916 | retval = debug_target.to_stopped_by_watchpoint (); | |
2917 | ||
2918 | fprintf_unfiltered (gdb_stdlog, | |
d92524f1 | 2919 | "target_stopped_by_watchpoint () = %ld\n", |
ccaa32c7 GS |
2920 | (unsigned long) retval); |
2921 | return retval; | |
2922 | } | |
2923 | ||
4aa7a7f5 JJ |
2924 | static int |
2925 | debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr) | |
ccaa32c7 | 2926 | { |
4aa7a7f5 | 2927 | int retval; |
ccaa32c7 | 2928 | |
4aa7a7f5 | 2929 | retval = debug_target.to_stopped_data_address (target, addr); |
ccaa32c7 GS |
2930 | |
2931 | fprintf_unfiltered (gdb_stdlog, | |
4aa7a7f5 JJ |
2932 | "target_stopped_data_address ([0x%lx]) = %ld\n", |
2933 | (unsigned long)*addr, | |
2934 | (unsigned long)retval); | |
ccaa32c7 GS |
2935 | return retval; |
2936 | } | |
2937 | ||
5009afc5 AS |
2938 | static int |
2939 | debug_to_watchpoint_addr_within_range (struct target_ops *target, | |
2940 | CORE_ADDR addr, | |
2941 | CORE_ADDR start, int length) | |
2942 | { | |
2943 | int retval; | |
2944 | ||
2945 | retval = debug_target.to_watchpoint_addr_within_range (target, addr, | |
2946 | start, length); | |
2947 | ||
2948 | fprintf_filtered (gdb_stdlog, | |
2949 | "target_watchpoint_addr_within_range (0x%lx, 0x%lx, %d) = %d\n", | |
2950 | (unsigned long) addr, (unsigned long) start, length, | |
2951 | retval); | |
2952 | return retval; | |
2953 | } | |
2954 | ||
ccaa32c7 | 2955 | static int |
8181d85f | 2956 | debug_to_insert_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2957 | { |
2958 | int retval; | |
2959 | ||
8181d85f | 2960 | retval = debug_target.to_insert_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2961 | |
2962 | fprintf_unfiltered (gdb_stdlog, | |
2963 | "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2964 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2965 | (unsigned long) retval); |
2966 | return retval; | |
2967 | } | |
2968 | ||
2969 | static int | |
8181d85f | 2970 | debug_to_remove_hw_breakpoint (struct bp_target_info *bp_tgt) |
ccaa32c7 GS |
2971 | { |
2972 | int retval; | |
2973 | ||
8181d85f | 2974 | retval = debug_target.to_remove_hw_breakpoint (bp_tgt); |
ccaa32c7 GS |
2975 | |
2976 | fprintf_unfiltered (gdb_stdlog, | |
2977 | "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n", | |
8181d85f | 2978 | (unsigned long) bp_tgt->placed_address, |
ccaa32c7 GS |
2979 | (unsigned long) retval); |
2980 | return retval; | |
2981 | } | |
2982 | ||
2983 | static int | |
2984 | debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type) | |
2985 | { | |
2986 | int retval; | |
2987 | ||
2988 | retval = debug_target.to_insert_watchpoint (addr, len, type); | |
2989 | ||
2990 | fprintf_unfiltered (gdb_stdlog, | |
2991 | "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n", | |
2992 | (unsigned long) addr, len, type, (unsigned long) retval); | |
2993 | return retval; | |
2994 | } | |
2995 | ||
2996 | static int | |
2997 | debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type) | |
2998 | { | |
2999 | int retval; | |
3000 | ||
ecde4882 | 3001 | retval = debug_target.to_remove_watchpoint (addr, len, type); |
ccaa32c7 GS |
3002 | |
3003 | fprintf_unfiltered (gdb_stdlog, | |
ecde4882 | 3004 | "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n", |
ccaa32c7 GS |
3005 | (unsigned long) addr, len, type, (unsigned long) retval); |
3006 | return retval; | |
3007 | } | |
3008 | ||
c906108c | 3009 | static void |
fba45db2 | 3010 | debug_to_terminal_init (void) |
c906108c SS |
3011 | { |
3012 | debug_target.to_terminal_init (); | |
3013 | ||
96baa820 | 3014 | fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n"); |
c906108c SS |
3015 | } |
3016 | ||
3017 | static void | |
fba45db2 | 3018 | debug_to_terminal_inferior (void) |
c906108c SS |
3019 | { |
3020 | debug_target.to_terminal_inferior (); | |
3021 | ||
96baa820 | 3022 | fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n"); |
c906108c SS |
3023 | } |
3024 | ||
3025 | static void | |
fba45db2 | 3026 | debug_to_terminal_ours_for_output (void) |
c906108c SS |
3027 | { |
3028 | debug_target.to_terminal_ours_for_output (); | |
3029 | ||
96baa820 | 3030 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n"); |
c906108c SS |
3031 | } |
3032 | ||
3033 | static void | |
fba45db2 | 3034 | debug_to_terminal_ours (void) |
c906108c SS |
3035 | { |
3036 | debug_target.to_terminal_ours (); | |
3037 | ||
96baa820 | 3038 | fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n"); |
c906108c SS |
3039 | } |
3040 | ||
a790ad35 SC |
3041 | static void |
3042 | debug_to_terminal_save_ours (void) | |
3043 | { | |
3044 | debug_target.to_terminal_save_ours (); | |
3045 | ||
3046 | fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n"); | |
3047 | } | |
3048 | ||
c906108c | 3049 | static void |
fba45db2 | 3050 | debug_to_terminal_info (char *arg, int from_tty) |
c906108c SS |
3051 | { |
3052 | debug_target.to_terminal_info (arg, from_tty); | |
3053 | ||
96baa820 | 3054 | fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg, |
c906108c SS |
3055 | from_tty); |
3056 | } | |
3057 | ||
c906108c | 3058 | static void |
fba45db2 | 3059 | debug_to_load (char *args, int from_tty) |
c906108c SS |
3060 | { |
3061 | debug_target.to_load (args, from_tty); | |
3062 | ||
96baa820 | 3063 | fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty); |
c906108c SS |
3064 | } |
3065 | ||
3066 | static int | |
fba45db2 | 3067 | debug_to_lookup_symbol (char *name, CORE_ADDR *addrp) |
c906108c SS |
3068 | { |
3069 | int retval; | |
3070 | ||
3071 | retval = debug_target.to_lookup_symbol (name, addrp); | |
3072 | ||
96baa820 | 3073 | fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name); |
c906108c SS |
3074 | |
3075 | return retval; | |
3076 | } | |
3077 | ||
c906108c | 3078 | static void |
39f77062 | 3079 | debug_to_post_startup_inferior (ptid_t ptid) |
c906108c | 3080 | { |
39f77062 | 3081 | debug_target.to_post_startup_inferior (ptid); |
c906108c | 3082 | |
96baa820 | 3083 | fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n", |
39f77062 | 3084 | PIDGET (ptid)); |
c906108c SS |
3085 | } |
3086 | ||
3087 | static void | |
fba45db2 | 3088 | debug_to_acknowledge_created_inferior (int pid) |
c906108c SS |
3089 | { |
3090 | debug_target.to_acknowledge_created_inferior (pid); | |
3091 | ||
96baa820 | 3092 | fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n", |
c906108c SS |
3093 | pid); |
3094 | } | |
3095 | ||
fa113d1a | 3096 | static void |
fba45db2 | 3097 | debug_to_insert_fork_catchpoint (int pid) |
c906108c | 3098 | { |
fa113d1a | 3099 | debug_target.to_insert_fork_catchpoint (pid); |
c906108c | 3100 | |
fa113d1a AC |
3101 | fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n", |
3102 | pid); | |
c906108c SS |
3103 | } |
3104 | ||
3105 | static int | |
fba45db2 | 3106 | debug_to_remove_fork_catchpoint (int pid) |
c906108c | 3107 | { |
c5aa993b | 3108 | int retval; |
c906108c SS |
3109 | |
3110 | retval = debug_target.to_remove_fork_catchpoint (pid); | |
3111 | ||
96baa820 | 3112 | fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n", |
c5aa993b | 3113 | pid, retval); |
c906108c SS |
3114 | |
3115 | return retval; | |
3116 | } | |
3117 | ||
fa113d1a | 3118 | static void |
fba45db2 | 3119 | debug_to_insert_vfork_catchpoint (int pid) |
c906108c | 3120 | { |
fa113d1a | 3121 | debug_target.to_insert_vfork_catchpoint (pid); |
c906108c | 3122 | |
fa113d1a AC |
3123 | fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n", |
3124 | pid); | |
c906108c SS |
3125 | } |
3126 | ||
3127 | static int | |
fba45db2 | 3128 | debug_to_remove_vfork_catchpoint (int pid) |
c906108c | 3129 | { |
c5aa993b | 3130 | int retval; |
c906108c SS |
3131 | |
3132 | retval = debug_target.to_remove_vfork_catchpoint (pid); | |
3133 | ||
96baa820 | 3134 | fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n", |
c5aa993b | 3135 | pid, retval); |
c906108c SS |
3136 | |
3137 | return retval; | |
3138 | } | |
3139 | ||
fa113d1a | 3140 | static void |
fba45db2 | 3141 | debug_to_insert_exec_catchpoint (int pid) |
c906108c | 3142 | { |
fa113d1a | 3143 | debug_target.to_insert_exec_catchpoint (pid); |
c906108c | 3144 | |
fa113d1a AC |
3145 | fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n", |
3146 | pid); | |
c906108c SS |
3147 | } |
3148 | ||
3149 | static int | |
fba45db2 | 3150 | debug_to_remove_exec_catchpoint (int pid) |
c906108c | 3151 | { |
c5aa993b | 3152 | int retval; |
c906108c SS |
3153 | |
3154 | retval = debug_target.to_remove_exec_catchpoint (pid); | |
3155 | ||
96baa820 | 3156 | fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n", |
c5aa993b | 3157 | pid, retval); |
c906108c SS |
3158 | |
3159 | return retval; | |
3160 | } | |
3161 | ||
c906108c | 3162 | static int |
fba45db2 | 3163 | debug_to_has_exited (int pid, int wait_status, int *exit_status) |
c906108c | 3164 | { |
c5aa993b | 3165 | int has_exited; |
c906108c SS |
3166 | |
3167 | has_exited = debug_target.to_has_exited (pid, wait_status, exit_status); | |
3168 | ||
96baa820 | 3169 | fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n", |
c5aa993b | 3170 | pid, wait_status, *exit_status, has_exited); |
c906108c SS |
3171 | |
3172 | return has_exited; | |
3173 | } | |
3174 | ||
c906108c | 3175 | static int |
fba45db2 | 3176 | debug_to_can_run (void) |
c906108c SS |
3177 | { |
3178 | int retval; | |
3179 | ||
3180 | retval = debug_target.to_can_run (); | |
3181 | ||
96baa820 | 3182 | fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval); |
c906108c SS |
3183 | |
3184 | return retval; | |
3185 | } | |
3186 | ||
3187 | static void | |
39f77062 | 3188 | debug_to_notice_signals (ptid_t ptid) |
c906108c | 3189 | { |
39f77062 | 3190 | debug_target.to_notice_signals (ptid); |
c906108c | 3191 | |
39f77062 KB |
3192 | fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", |
3193 | PIDGET (ptid)); | |
c906108c SS |
3194 | } |
3195 | ||
c906108c | 3196 | static void |
94cc34af | 3197 | debug_to_stop (ptid_t ptid) |
c906108c | 3198 | { |
94cc34af | 3199 | debug_target.to_stop (ptid); |
c906108c | 3200 | |
94cc34af PA |
3201 | fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n", |
3202 | target_pid_to_str (ptid)); | |
c906108c SS |
3203 | } |
3204 | ||
96baa820 JM |
3205 | static void |
3206 | debug_to_rcmd (char *command, | |
d9fcf2fb | 3207 | struct ui_file *outbuf) |
96baa820 JM |
3208 | { |
3209 | debug_target.to_rcmd (command, outbuf); | |
3210 | fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command); | |
3211 | } | |
3212 | ||
c906108c | 3213 | static char * |
fba45db2 | 3214 | debug_to_pid_to_exec_file (int pid) |
c906108c | 3215 | { |
c5aa993b | 3216 | char *exec_file; |
c906108c SS |
3217 | |
3218 | exec_file = debug_target.to_pid_to_exec_file (pid); | |
3219 | ||
96baa820 | 3220 | fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n", |
c5aa993b | 3221 | pid, exec_file); |
c906108c SS |
3222 | |
3223 | return exec_file; | |
3224 | } | |
3225 | ||
c906108c | 3226 | static void |
fba45db2 | 3227 | setup_target_debug (void) |
c906108c SS |
3228 | { |
3229 | memcpy (&debug_target, ¤t_target, sizeof debug_target); | |
3230 | ||
3231 | current_target.to_open = debug_to_open; | |
c906108c | 3232 | current_target.to_post_attach = debug_to_post_attach; |
c906108c | 3233 | current_target.to_prepare_to_store = debug_to_prepare_to_store; |
c8e73a31 | 3234 | current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory; |
c906108c SS |
3235 | current_target.to_files_info = debug_to_files_info; |
3236 | current_target.to_insert_breakpoint = debug_to_insert_breakpoint; | |
3237 | current_target.to_remove_breakpoint = debug_to_remove_breakpoint; | |
ccaa32c7 GS |
3238 | current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint; |
3239 | current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint; | |
3240 | current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint; | |
3241 | current_target.to_insert_watchpoint = debug_to_insert_watchpoint; | |
3242 | current_target.to_remove_watchpoint = debug_to_remove_watchpoint; | |
3243 | current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint; | |
3244 | current_target.to_stopped_data_address = debug_to_stopped_data_address; | |
5009afc5 | 3245 | current_target.to_watchpoint_addr_within_range = debug_to_watchpoint_addr_within_range; |
e0d24f8d | 3246 | current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint; |
c906108c SS |
3247 | current_target.to_terminal_init = debug_to_terminal_init; |
3248 | current_target.to_terminal_inferior = debug_to_terminal_inferior; | |
3249 | current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output; | |
3250 | current_target.to_terminal_ours = debug_to_terminal_ours; | |
a790ad35 | 3251 | current_target.to_terminal_save_ours = debug_to_terminal_save_ours; |
c906108c | 3252 | current_target.to_terminal_info = debug_to_terminal_info; |
c906108c SS |
3253 | current_target.to_load = debug_to_load; |
3254 | current_target.to_lookup_symbol = debug_to_lookup_symbol; | |
c906108c SS |
3255 | current_target.to_post_startup_inferior = debug_to_post_startup_inferior; |
3256 | current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior; | |
c906108c SS |
3257 | current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint; |
3258 | current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint; | |
3259 | current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint; | |
3260 | current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint; | |
c906108c SS |
3261 | current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint; |
3262 | current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint; | |
c906108c | 3263 | current_target.to_has_exited = debug_to_has_exited; |
c906108c SS |
3264 | current_target.to_can_run = debug_to_can_run; |
3265 | current_target.to_notice_signals = debug_to_notice_signals; | |
c906108c | 3266 | current_target.to_stop = debug_to_stop; |
96baa820 | 3267 | current_target.to_rcmd = debug_to_rcmd; |
c906108c | 3268 | current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file; |
c906108c | 3269 | } |
c906108c | 3270 | \f |
c5aa993b JM |
3271 | |
3272 | static char targ_desc[] = | |
3273 | "Names of targets and files being debugged.\n\ | |
c906108c SS |
3274 | Shows the entire stack of targets currently in use (including the exec-file,\n\ |
3275 | core-file, and process, if any), as well as the symbol file name."; | |
3276 | ||
96baa820 JM |
3277 | static void |
3278 | do_monitor_command (char *cmd, | |
3279 | int from_tty) | |
3280 | { | |
2b5fe715 AC |
3281 | if ((current_target.to_rcmd |
3282 | == (void (*) (char *, struct ui_file *)) tcomplain) | |
96baa820 | 3283 | || (current_target.to_rcmd == debug_to_rcmd |
2b5fe715 AC |
3284 | && (debug_target.to_rcmd |
3285 | == (void (*) (char *, struct ui_file *)) tcomplain))) | |
8a3fe4f8 | 3286 | error (_("\"monitor\" command not supported by this target.")); |
96baa820 JM |
3287 | target_rcmd (cmd, gdb_stdtarg); |
3288 | } | |
3289 | ||
87680a14 JB |
3290 | /* Print the name of each layers of our target stack. */ |
3291 | ||
3292 | static void | |
3293 | maintenance_print_target_stack (char *cmd, int from_tty) | |
3294 | { | |
3295 | struct target_ops *t; | |
3296 | ||
3297 | printf_filtered (_("The current target stack is:\n")); | |
3298 | ||
3299 | for (t = target_stack; t != NULL; t = t->beneath) | |
3300 | { | |
3301 | printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname); | |
3302 | } | |
3303 | } | |
3304 | ||
c6ebd6cf VP |
3305 | /* Controls if async mode is permitted. */ |
3306 | int target_async_permitted = 0; | |
3307 | ||
3308 | /* The set command writes to this variable. If the inferior is | |
3309 | executing, linux_nat_async_permitted is *not* updated. */ | |
3310 | static int target_async_permitted_1 = 0; | |
3311 | ||
3312 | static void | |
3313 | set_maintenance_target_async_permitted (char *args, int from_tty, | |
3314 | struct cmd_list_element *c) | |
3315 | { | |
3316 | if (target_has_execution) | |
3317 | { | |
3318 | target_async_permitted_1 = target_async_permitted; | |
3319 | error (_("Cannot change this setting while the inferior is running.")); | |
3320 | } | |
3321 | ||
3322 | target_async_permitted = target_async_permitted_1; | |
3323 | } | |
3324 | ||
3325 | static void | |
3326 | show_maintenance_target_async_permitted (struct ui_file *file, int from_tty, | |
3327 | struct cmd_list_element *c, | |
3328 | const char *value) | |
3329 | { | |
3330 | fprintf_filtered (file, _("\ | |
3331 | Controlling the inferior in asynchronous mode is %s.\n"), value); | |
3332 | } | |
3333 | ||
c906108c | 3334 | void |
fba45db2 | 3335 | initialize_targets (void) |
c906108c SS |
3336 | { |
3337 | init_dummy_target (); | |
3338 | push_target (&dummy_target); | |
3339 | ||
3340 | add_info ("target", target_info, targ_desc); | |
3341 | add_info ("files", target_info, targ_desc); | |
3342 | ||
85c07804 AC |
3343 | add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\ |
3344 | Set target debugging."), _("\ | |
3345 | Show target debugging."), _("\ | |
333dabeb DJ |
3346 | When non-zero, target debugging is enabled. Higher numbers are more\n\ |
3347 | verbose. Changes do not take effect until the next \"run\" or \"target\"\n\ | |
85c07804 AC |
3348 | command."), |
3349 | NULL, | |
920d2a44 | 3350 | show_targetdebug, |
85c07804 | 3351 | &setdebuglist, &showdebuglist); |
3a11626d | 3352 | |
2bc416ba | 3353 | add_setshow_boolean_cmd ("trust-readonly-sections", class_support, |
7915a72c AC |
3354 | &trust_readonly, _("\ |
3355 | Set mode for reading from readonly sections."), _("\ | |
3356 | Show mode for reading from readonly sections."), _("\ | |
3a11626d MS |
3357 | When this mode is on, memory reads from readonly sections (such as .text)\n\ |
3358 | will be read from the object file instead of from the target. This will\n\ | |
7915a72c | 3359 | result in significant performance improvement for remote targets."), |
2c5b56ce | 3360 | NULL, |
920d2a44 | 3361 | show_trust_readonly, |
e707bbc2 | 3362 | &setlist, &showlist); |
96baa820 JM |
3363 | |
3364 | add_com ("monitor", class_obscure, do_monitor_command, | |
1bedd215 | 3365 | _("Send a command to the remote monitor (remote targets only).")); |
96baa820 | 3366 | |
87680a14 JB |
3367 | add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack, |
3368 | _("Print the name of each layer of the internal target stack."), | |
3369 | &maintenanceprintlist); | |
3370 | ||
c6ebd6cf VP |
3371 | add_setshow_boolean_cmd ("target-async", no_class, |
3372 | &target_async_permitted_1, _("\ | |
3373 | Set whether gdb controls the inferior in asynchronous mode."), _("\ | |
3374 | Show whether gdb controls the inferior in asynchronous mode."), _("\ | |
3375 | Tells gdb whether to control the inferior in asynchronous mode."), | |
3376 | set_maintenance_target_async_permitted, | |
3377 | show_maintenance_target_async_permitted, | |
3378 | &setlist, | |
3379 | &showlist); | |
3380 | ||
8add0441 | 3381 | target_dcache = dcache_init (); |
c906108c | 3382 | } |