Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 DJ |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
5 | 2008 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <signal.h> | |
24 | #include "gdb_string.h" | |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "frame.h" | |
28 | #include "inferior.h" | |
29 | #include "environ.h" | |
30 | #include "value.h" | |
31 | #include "gdbcmd.h" | |
1adeb98a | 32 | #include "symfile.h" |
c906108c SS |
33 | #include "gdbcore.h" |
34 | #include "target.h" | |
35 | #include "language.h" | |
36 | #include "symfile.h" | |
37 | #include "objfiles.h" | |
c94fdfd0 | 38 | #include "completer.h" |
8b93c638 | 39 | #include "ui-out.h" |
6426a772 | 40 | #include "event-top.h" |
96baa820 | 41 | #include "parser-defs.h" |
36160dc4 | 42 | #include "regcache.h" |
f9418c0f | 43 | #include "reggroups.h" |
fe898f56 | 44 | #include "block.h" |
a77053c2 | 45 | #include "solib.h" |
f9418c0f | 46 | #include <ctype.h> |
92ad9cd9 | 47 | #include "gdb_assert.h" |
281b533b | 48 | #include "observer.h" |
424163ea | 49 | #include "target-descriptions.h" |
ad842144 | 50 | #include "user-regs.h" |
32c1e744 | 51 | #include "exceptions.h" |
700b53b1 | 52 | #include "cli/cli-decode.h" |
a0ef4274 | 53 | #include "gdbthread.h" |
72cec141 | 54 | |
a58dd373 | 55 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 56 | |
a14ed312 | 57 | void all_registers_info (char *, int); |
c906108c | 58 | |
a14ed312 | 59 | void registers_info (char *, int); |
c906108c | 60 | |
a58dd373 EZ |
61 | void nexti_command (char *, int); |
62 | ||
63 | void stepi_command (char *, int); | |
c906108c | 64 | |
a14ed312 | 65 | void continue_command (char *, int); |
c906108c | 66 | |
a58dd373 EZ |
67 | void interrupt_target_command (char *args, int from_tty); |
68 | ||
69 | /* Local functions: */ | |
70 | ||
71 | static void nofp_registers_info (char *, int); | |
72 | ||
c055b101 CV |
73 | static void print_return_value (struct type *func_type, |
74 | struct type *value_type); | |
11cf8741 | 75 | |
a14ed312 | 76 | static void until_next_command (int); |
c906108c | 77 | |
a14ed312 | 78 | static void until_command (char *, int); |
c906108c | 79 | |
a14ed312 | 80 | static void path_info (char *, int); |
c906108c | 81 | |
a14ed312 | 82 | static void path_command (char *, int); |
c906108c | 83 | |
a14ed312 | 84 | static void unset_command (char *, int); |
c906108c | 85 | |
a14ed312 | 86 | static void float_info (char *, int); |
c906108c | 87 | |
a14ed312 | 88 | static void detach_command (char *, int); |
c906108c | 89 | |
6ad8ae5c DJ |
90 | static void disconnect_command (char *, int); |
91 | ||
a14ed312 | 92 | static void unset_environment_command (char *, int); |
c906108c | 93 | |
a14ed312 | 94 | static void set_environment_command (char *, int); |
c906108c | 95 | |
a14ed312 | 96 | static void environment_info (char *, int); |
c906108c | 97 | |
a14ed312 | 98 | static void program_info (char *, int); |
c906108c | 99 | |
a14ed312 | 100 | static void finish_command (char *, int); |
c906108c | 101 | |
a14ed312 | 102 | static void signal_command (char *, int); |
c906108c | 103 | |
a14ed312 | 104 | static void jump_command (char *, int); |
c906108c | 105 | |
a14ed312 | 106 | static void step_1 (int, int, char *); |
611c83ae | 107 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
c906108c | 108 | |
a14ed312 | 109 | static void next_command (char *, int); |
c906108c | 110 | |
a14ed312 | 111 | static void step_command (char *, int); |
c906108c | 112 | |
a14ed312 | 113 | static void run_command (char *, int); |
c906108c | 114 | |
a14ed312 | 115 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 116 | |
a14ed312 | 117 | static void go_command (char *line_no, int from_tty); |
392a587b | 118 | |
a14ed312 | 119 | static int strip_bg_char (char **); |
43ff13b4 | 120 | |
a14ed312 | 121 | void _initialize_infcmd (void); |
c906108c | 122 | |
c906108c | 123 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 124 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
125 | |
126 | /* String containing arguments to give to the program, separated by spaces. | |
127 | Empty string (pointer to '\0') means no args. */ | |
128 | ||
129 | static char *inferior_args; | |
130 | ||
552c04a7 TT |
131 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
132 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
133 | ||
134 | static int inferior_argc; | |
135 | static char **inferior_argv; | |
136 | ||
c906108c SS |
137 | /* File name for default use for standard in/out in the inferior. */ |
138 | ||
3cb3b8df | 139 | static char *inferior_io_terminal; |
c906108c SS |
140 | |
141 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
142 | Since various parts of infrun.c test this to see whether there is a program | |
143 | being debugged it should be nonzero (currently 3 is used) for remote | |
144 | debugging. */ | |
145 | ||
39f77062 | 146 | ptid_t inferior_ptid; |
c906108c | 147 | |
c906108c SS |
148 | /* Address at which inferior stopped. */ |
149 | ||
150 | CORE_ADDR stop_pc; | |
151 | ||
c906108c SS |
152 | /* Flag indicating that a command has proceeded the inferior past the |
153 | current breakpoint. */ | |
154 | ||
155 | int breakpoint_proceeded; | |
156 | ||
c906108c SS |
157 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
158 | ||
159 | int stop_stack_dummy; | |
160 | ||
161 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
162 | process. */ | |
163 | ||
164 | int stopped_by_random_signal; | |
165 | ||
c906108c SS |
166 | /* Environment to use for running inferior, |
167 | in format described in environ.h. */ | |
168 | ||
1bf1958d | 169 | struct gdb_environ *inferior_environ; |
f5871ec0 | 170 | |
8f6a8e84 VP |
171 | /* When set, no calls to target_resumed observer will be made. */ |
172 | int suppress_resume_observer = 0; | |
173 | /* When set, normal_stop will not call the normal_stop observer. */ | |
174 | int suppress_stop_observer = 0; | |
c906108c | 175 | \f |
07091751 FN |
176 | /* Accessor routines. */ |
177 | ||
3cb3b8df BR |
178 | void |
179 | set_inferior_io_terminal (const char *terminal_name) | |
180 | { | |
181 | if (inferior_io_terminal) | |
182 | xfree (inferior_io_terminal); | |
183 | ||
184 | if (!terminal_name) | |
185 | inferior_io_terminal = NULL; | |
186 | else | |
187 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
188 | } | |
189 | ||
190 | const char * | |
191 | get_inferior_io_terminal (void) | |
192 | { | |
193 | return inferior_io_terminal; | |
194 | } | |
195 | ||
07091751 FN |
196 | char * |
197 | get_inferior_args (void) | |
198 | { | |
552c04a7 TT |
199 | if (inferior_argc != 0) |
200 | { | |
201 | char *n, *old; | |
202 | ||
203 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
204 | inferior_argc, inferior_argv); | |
205 | old = set_inferior_args (n); | |
206 | xfree (old); | |
207 | } | |
208 | ||
209 | if (inferior_args == NULL) | |
210 | inferior_args = xstrdup (""); | |
211 | ||
07091751 FN |
212 | return inferior_args; |
213 | } | |
214 | ||
215 | char * | |
216 | set_inferior_args (char *newargs) | |
217 | { | |
218 | char *saved_args = inferior_args; | |
219 | ||
220 | inferior_args = newargs; | |
552c04a7 TT |
221 | inferior_argc = 0; |
222 | inferior_argv = 0; | |
07091751 FN |
223 | |
224 | return saved_args; | |
225 | } | |
c5aa993b | 226 | |
552c04a7 TT |
227 | void |
228 | set_inferior_args_vector (int argc, char **argv) | |
229 | { | |
230 | inferior_argc = argc; | |
231 | inferior_argv = argv; | |
232 | } | |
233 | ||
234 | /* Notice when `set args' is run. */ | |
235 | static void | |
236 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
237 | { | |
238 | inferior_argc = 0; | |
239 | inferior_argv = 0; | |
240 | } | |
241 | ||
242 | /* Notice when `show args' is run. */ | |
243 | static void | |
b4b4ac0b AC |
244 | notice_args_read (struct ui_file *file, int from_tty, |
245 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 246 | { |
258c00cc TT |
247 | /* Note that we ignore the passed-in value in favor of computing it |
248 | directly. */ | |
249 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
250 | } |
251 | ||
c2a727fa TT |
252 | \f |
253 | /* Compute command-line string given argument vector. This does the | |
254 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
255 | char * |
256 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
257 | { | |
258 | char *result; | |
259 | ||
260 | if (STARTUP_WITH_SHELL) | |
261 | { | |
262 | /* This holds all the characters considered special to the | |
263 | typical Unix shells. We include `^' because the SunOS | |
264 | /bin/sh treats it as a synonym for `|'. */ | |
265 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
266 | int i; | |
267 | int length = 0; | |
268 | char *out, *cp; | |
269 | ||
270 | /* We over-compute the size. It shouldn't matter. */ | |
271 | for (i = 0; i < argc; ++i) | |
03c6228e | 272 | length += 2 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
273 | |
274 | result = (char *) xmalloc (length); | |
275 | out = result; | |
276 | ||
277 | for (i = 0; i < argc; ++i) | |
278 | { | |
279 | if (i > 0) | |
280 | *out++ = ' '; | |
281 | ||
03c6228e AS |
282 | /* Need to handle empty arguments specially. */ |
283 | if (argv[i][0] == '\0') | |
c2a727fa | 284 | { |
03c6228e AS |
285 | *out++ = '\''; |
286 | *out++ = '\''; | |
287 | } | |
288 | else | |
289 | { | |
290 | for (cp = argv[i]; *cp; ++cp) | |
291 | { | |
292 | if (strchr (special, *cp) != NULL) | |
293 | *out++ = '\\'; | |
294 | *out++ = *cp; | |
295 | } | |
c2a727fa TT |
296 | } |
297 | } | |
298 | *out = '\0'; | |
299 | } | |
300 | else | |
301 | { | |
302 | /* In this case we can't handle arguments that contain spaces, | |
303 | tabs, or newlines -- see breakup_args(). */ | |
304 | int i; | |
305 | int length = 0; | |
306 | ||
307 | for (i = 0; i < argc; ++i) | |
308 | { | |
309 | char *cp = strchr (argv[i], ' '); | |
310 | if (cp == NULL) | |
311 | cp = strchr (argv[i], '\t'); | |
312 | if (cp == NULL) | |
313 | cp = strchr (argv[i], '\n'); | |
314 | if (cp != NULL) | |
8a3fe4f8 | 315 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
316 | length += strlen (argv[i]) + 1; |
317 | } | |
318 | ||
319 | result = (char *) xmalloc (length); | |
320 | result[0] = '\0'; | |
321 | for (i = 0; i < argc; ++i) | |
322 | { | |
323 | if (i > 0) | |
324 | strcat (result, " "); | |
325 | strcat (result, argv[i]); | |
326 | } | |
327 | } | |
328 | ||
329 | return result; | |
330 | } | |
552c04a7 TT |
331 | \f |
332 | ||
43ff13b4 JM |
333 | /* This function detects whether or not a '&' character (indicating |
334 | background execution) has been added as *the last* of the arguments ARGS | |
335 | of a command. If it has, it removes it and returns 1. Otherwise it | |
336 | does nothing and returns 0. */ | |
c5aa993b | 337 | static int |
fba45db2 | 338 | strip_bg_char (char **args) |
43ff13b4 JM |
339 | { |
340 | char *p = NULL; | |
c5aa993b | 341 | |
9846de1b | 342 | p = strchr (*args, '&'); |
c5aa993b | 343 | |
9846de1b | 344 | if (p) |
43ff13b4 JM |
345 | { |
346 | if (p == (*args + strlen (*args) - 1)) | |
347 | { | |
c5aa993b | 348 | if (strlen (*args) > 1) |
43ff13b4 JM |
349 | { |
350 | do | |
351 | p--; | |
352 | while (*p == ' ' || *p == '\t'); | |
353 | *(p + 1) = '\0'; | |
354 | } | |
355 | else | |
356 | *args = 0; | |
357 | return 1; | |
358 | } | |
359 | } | |
360 | return 0; | |
361 | } | |
362 | ||
c906108c | 363 | void |
fba45db2 | 364 | tty_command (char *file, int from_tty) |
c906108c SS |
365 | { |
366 | if (file == 0) | |
e2e0b3e5 | 367 | error_no_arg (_("terminal name for running target process")); |
c906108c | 368 | |
3cb3b8df | 369 | set_inferior_io_terminal (file); |
c906108c SS |
370 | } |
371 | ||
281b533b DJ |
372 | /* Common actions to take after creating any sort of inferior, by any |
373 | means (running, attaching, connecting, et cetera). The target | |
374 | should be stopped. */ | |
375 | ||
376 | void | |
377 | post_create_inferior (struct target_ops *target, int from_tty) | |
378 | { | |
b79599ff DP |
379 | /* Be sure we own the terminal in case write operations are performed. */ |
380 | target_terminal_ours (); | |
381 | ||
424163ea DJ |
382 | /* If the target hasn't taken care of this already, do it now. |
383 | Targets which need to access registers during to_open, | |
384 | to_create_inferior, or to_attach should do it earlier; but many | |
385 | don't need to. */ | |
386 | target_find_description (); | |
387 | ||
9353355f DJ |
388 | if (exec_bfd) |
389 | { | |
390 | /* Sometimes the platform-specific hook loads initial shared | |
391 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
392 | that we can add them with the correct value for FROM_TTY. |
393 | If we made all the inferior hook methods consistent, | |
394 | this call could be removed. */ | |
9353355f DJ |
395 | #ifdef SOLIB_ADD |
396 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
397 | #else | |
398 | solib_add (NULL, from_tty, target, auto_solib_add); | |
399 | #endif | |
400 | ||
401 | /* Create the hooks to handle shared library load and unload | |
402 | events. */ | |
403 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 404 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
405 | #else |
406 | solib_create_inferior_hook (); | |
407 | #endif | |
9353355f DJ |
408 | } |
409 | ||
281b533b DJ |
410 | observer_notify_inferior_created (target, from_tty); |
411 | } | |
412 | ||
a4d5f2e0 JB |
413 | /* Kill the inferior if already running. This function is designed |
414 | to be called when we are about to start the execution of the program | |
415 | from the beginning. Ask the user to confirm that he wants to restart | |
416 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 417 | |
8edfe269 | 418 | static void |
a4d5f2e0 JB |
419 | kill_if_already_running (int from_tty) |
420 | { | |
39f77062 | 421 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 422 | { |
8edfe269 DJ |
423 | /* Bail out before killing the program if we will not be able to |
424 | restart it. */ | |
425 | target_require_runnable (); | |
426 | ||
adf40b2e JM |
427 | if (from_tty |
428 | && !query ("The program being debugged has been started already.\n\ | |
c906108c | 429 | Start it from the beginning? ")) |
8a3fe4f8 | 430 | error (_("Program not restarted.")); |
c906108c | 431 | target_kill (); |
c906108c | 432 | } |
a4d5f2e0 JB |
433 | } |
434 | ||
f67a969f JB |
435 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
436 | a temporary breakpoint at the begining of the main program before | |
437 | running the program. */ | |
438 | ||
a4d5f2e0 | 439 | static void |
f67a969f | 440 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
441 | { |
442 | char *exec_file; | |
c906108c | 443 | |
a4d5f2e0 JB |
444 | dont_repeat (); |
445 | ||
446 | kill_if_already_running (from_tty); | |
3c35e65b UW |
447 | |
448 | init_wait_for_inferior (); | |
c906108c SS |
449 | clear_breakpoint_hit_counts (); |
450 | ||
fd79ecee DJ |
451 | /* Clean up any leftovers from other runs. Some other things from |
452 | this function should probably be moved into target_pre_inferior. */ | |
453 | target_pre_inferior (from_tty); | |
454 | ||
39ad761d JB |
455 | /* The comment here used to read, "The exec file is re-read every |
456 | time we do a generic_mourn_inferior, so we just have to worry | |
457 | about the symbol file." The `generic_mourn_inferior' function | |
458 | gets called whenever the program exits. However, suppose the | |
459 | program exits, and *then* the executable file changes? We need | |
460 | to check again here. Since reopen_exec_file doesn't do anything | |
461 | if the timestamp hasn't changed, I don't see the harm. */ | |
462 | reopen_exec_file (); | |
c906108c SS |
463 | reread_symbols (); |
464 | ||
f67a969f JB |
465 | /* Insert the temporary breakpoint if a location was specified. */ |
466 | if (tbreak_at_main) | |
467 | tbreak_command (main_name (), 0); | |
468 | ||
39ad761d JB |
469 | exec_file = (char *) get_exec_file (0); |
470 | ||
9908b566 VP |
471 | if (non_stop && !target_supports_non_stop ()) |
472 | error (_("The target does not support running in non-stop mode.")); | |
473 | ||
c906108c SS |
474 | /* We keep symbols from add-symbol-file, on the grounds that the |
475 | user might want to add some symbols before running the program | |
476 | (right?). But sometimes (dynamic loading where the user manually | |
477 | introduces the new symbols with add-symbol-file), the code which | |
478 | the symbols describe does not persist between runs. Currently | |
479 | the user has to manually nuke all symbols between runs if they | |
480 | want them to go away (PR 2207). This is probably reasonable. */ | |
481 | ||
43ff13b4 | 482 | if (!args) |
6426a772 | 483 | { |
362646f5 | 484 | if (target_can_async_p ()) |
6426a772 JM |
485 | async_disable_stdin (); |
486 | } | |
43ff13b4 | 487 | else |
c906108c | 488 | { |
43ff13b4 JM |
489 | int async_exec = strip_bg_char (&args); |
490 | ||
491 | /* If we get a request for running in the bg but the target | |
492 | doesn't support it, error out. */ | |
362646f5 | 493 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 494 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
495 | |
496 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 497 | to simulate synchronous (fg) execution. */ |
362646f5 | 498 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
499 | { |
500 | /* Simulate synchronous execution */ | |
6426a772 | 501 | async_disable_stdin (); |
43ff13b4 JM |
502 | } |
503 | ||
504 | /* If there were other args, beside '&', process them. */ | |
505 | if (args) | |
506 | { | |
07091751 FN |
507 | char *old_args = set_inferior_args (xstrdup (args)); |
508 | xfree (old_args); | |
43ff13b4 | 509 | } |
c906108c SS |
510 | } |
511 | ||
512 | if (from_tty) | |
513 | { | |
8b93c638 JM |
514 | ui_out_field_string (uiout, NULL, "Starting program"); |
515 | ui_out_text (uiout, ": "); | |
516 | if (exec_file) | |
517 | ui_out_field_string (uiout, "execfile", exec_file); | |
518 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
519 | /* We call get_inferior_args() because we might need to compute |
520 | the value now. */ | |
521 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
522 | ui_out_text (uiout, "\n"); |
523 | ui_out_flush (uiout); | |
c906108c SS |
524 | } |
525 | ||
552c04a7 TT |
526 | /* We call get_inferior_args() because we might need to compute |
527 | the value now. */ | |
528 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 529 | environ_vector (inferior_environ), from_tty); |
281b533b | 530 | |
de1b3c3d PA |
531 | /* Pass zero for FROM_TTY, because at this point the "run" command |
532 | has done its thing; now we are setting up the running program. */ | |
533 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
534 | |
535 | /* Start the target running. */ | |
536 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c SS |
537 | } |
538 | ||
539 | ||
f67a969f JB |
540 | static void |
541 | run_command (char *args, int from_tty) | |
542 | { | |
543 | run_command_1 (args, from_tty, 0); | |
544 | } | |
545 | ||
c906108c | 546 | static void |
fba45db2 | 547 | run_no_args_command (char *args, int from_tty) |
c906108c | 548 | { |
07091751 FN |
549 | char *old_args = set_inferior_args (xstrdup ("")); |
550 | xfree (old_args); | |
c906108c | 551 | } |
c906108c | 552 | \f |
c5aa993b | 553 | |
a4d5f2e0 JB |
554 | /* Start the execution of the program up until the beginning of the main |
555 | program. */ | |
556 | ||
557 | static void | |
558 | start_command (char *args, int from_tty) | |
559 | { | |
560 | /* Some languages such as Ada need to search inside the program | |
561 | minimal symbols for the location where to put the temporary | |
562 | breakpoint before starting. */ | |
563 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 564 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 565 | |
f67a969f JB |
566 | /* Run the program until reaching the main procedure... */ |
567 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
568 | } |
569 | ||
8cae4b3f PA |
570 | static int |
571 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
572 | { | |
4f8d22e3 | 573 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
574 | return 0; |
575 | ||
dcf4fbde | 576 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
577 | clear_proceed_status (); |
578 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
579 | return 0; | |
580 | } | |
581 | ||
77ebaa5a VP |
582 | void |
583 | continue_1 (int all_threads) | |
584 | { | |
3d488bfc PA |
585 | ERROR_NO_INFERIOR; |
586 | ||
77ebaa5a VP |
587 | if (non_stop && all_threads) |
588 | { | |
589 | /* Don't error out if the current thread is running, because | |
590 | there may be other stopped threads. */ | |
591 | struct cleanup *old_chain; | |
592 | ||
593 | /* Backup current thread and selected frame. */ | |
594 | old_chain = make_cleanup_restore_current_thread (); | |
595 | ||
596 | iterate_over_threads (proceed_thread_callback, NULL); | |
597 | ||
598 | /* Restore selected ptid. */ | |
599 | do_cleanups (old_chain); | |
600 | } | |
601 | else | |
602 | { | |
603 | ensure_not_running (); | |
604 | clear_proceed_status (); | |
605 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
606 | } | |
607 | } | |
608 | ||
8cae4b3f | 609 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 610 | void |
8cae4b3f | 611 | continue_command (char *args, int from_tty) |
c906108c | 612 | { |
c5aa993b | 613 | int async_exec = 0; |
8cae4b3f | 614 | int all_threads = 0; |
c906108c SS |
615 | ERROR_NO_INFERIOR; |
616 | ||
43ff13b4 | 617 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
618 | if (args != NULL) |
619 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
620 | |
621 | /* If we must run in the background, but the target can't do it, | |
622 | error out. */ | |
362646f5 | 623 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 624 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
625 | |
626 | /* If we are not asked to run in the bg, then prepare to run in the | |
627 | foreground, synchronously. */ | |
362646f5 | 628 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 629 | { |
43ff13b4 | 630 | /* Simulate synchronous execution */ |
6426a772 | 631 | async_disable_stdin (); |
43ff13b4 | 632 | } |
c906108c | 633 | |
8cae4b3f PA |
634 | if (args != NULL) |
635 | { | |
636 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
637 | { | |
638 | all_threads = 1; | |
639 | args += sizeof ("-a") - 1; | |
640 | if (*args == '\0') | |
641 | args = NULL; | |
642 | } | |
643 | } | |
644 | ||
645 | if (!non_stop && all_threads) | |
646 | error (_("`-a' is meaningless in all-stop mode.")); | |
647 | ||
648 | if (args != NULL && all_threads) | |
649 | error (_("\ | |
650 | Can't resume all threads and specify proceed count simultaneously.")); | |
651 | ||
652 | /* If we have an argument left, set proceed count of breakpoint we | |
653 | stopped at. */ | |
654 | if (args != NULL) | |
c906108c | 655 | { |
347bddb7 | 656 | bpstat bs = NULL; |
8671a17b PA |
657 | int num, stat; |
658 | int stopped = 0; | |
347bddb7 PA |
659 | struct thread_info *tp; |
660 | ||
661 | if (non_stop) | |
662 | tp = find_thread_pid (inferior_ptid); | |
663 | else | |
664 | { | |
665 | ptid_t last_ptid; | |
666 | struct target_waitstatus ws; | |
667 | ||
668 | get_last_target_status (&last_ptid, &ws); | |
669 | tp = find_thread_pid (last_ptid); | |
670 | } | |
671 | if (tp != NULL) | |
672 | bs = tp->stop_bpstat; | |
8671a17b PA |
673 | |
674 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
675 | if (stat > 0) | |
676 | { | |
677 | set_ignore_count (num, | |
8cae4b3f | 678 | parse_and_eval_long (args) - 1, |
8671a17b PA |
679 | from_tty); |
680 | /* set_ignore_count prints a message ending with a period. | |
681 | So print two spaces before "Continuing.". */ | |
682 | if (from_tty) | |
683 | printf_filtered (" "); | |
684 | stopped = 1; | |
685 | } | |
686 | ||
687 | if (!stopped && from_tty) | |
c906108c SS |
688 | { |
689 | printf_filtered | |
690 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
691 | } | |
c906108c SS |
692 | } |
693 | ||
694 | if (from_tty) | |
a3f17187 | 695 | printf_filtered (_("Continuing.\n")); |
c906108c | 696 | |
77ebaa5a | 697 | continue_1 (all_threads); |
c906108c SS |
698 | } |
699 | \f | |
700 | /* Step until outside of current statement. */ | |
701 | ||
c906108c | 702 | static void |
fba45db2 | 703 | step_command (char *count_string, int from_tty) |
c906108c SS |
704 | { |
705 | step_1 (0, 0, count_string); | |
706 | } | |
707 | ||
708 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
709 | ||
c906108c | 710 | static void |
fba45db2 | 711 | next_command (char *count_string, int from_tty) |
c906108c SS |
712 | { |
713 | step_1 (1, 0, count_string); | |
714 | } | |
715 | ||
716 | /* Likewise, but step only one instruction. */ | |
717 | ||
c906108c | 718 | void |
fba45db2 | 719 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
720 | { |
721 | step_1 (0, 1, count_string); | |
722 | } | |
723 | ||
c906108c | 724 | void |
fba45db2 | 725 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
726 | { |
727 | step_1 (1, 1, count_string); | |
728 | } | |
729 | ||
74b7792f | 730 | static void |
611c83ae | 731 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 732 | { |
611c83ae PA |
733 | int thread = * (int *) arg; |
734 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
735 | } |
736 | ||
c906108c | 737 | static void |
fba45db2 | 738 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 739 | { |
52f0bd74 | 740 | int count = 1; |
c906108c | 741 | struct frame_info *frame; |
f107f563 | 742 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 743 | int async_exec = 0; |
b3dc826b | 744 | int thread = -1; |
c5aa993b | 745 | |
c906108c | 746 | ERROR_NO_INFERIOR; |
94cc34af | 747 | ensure_not_running (); |
43ff13b4 JM |
748 | |
749 | if (count_string) | |
750 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 751 | |
43ff13b4 JM |
752 | /* If we get a request for running in the bg but the target |
753 | doesn't support it, error out. */ | |
362646f5 | 754 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 755 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
756 | |
757 | /* If we don't get a request of running in the bg, then we need | |
758 | to simulate synchronous (fg) execution. */ | |
362646f5 | 759 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
760 | { |
761 | /* Simulate synchronous execution */ | |
6426a772 | 762 | async_disable_stdin (); |
43ff13b4 JM |
763 | } |
764 | ||
bb518678 | 765 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 766 | |
c5aa993b | 767 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 768 | { |
611c83ae | 769 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 770 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
771 | |
772 | set_longjmp_breakpoint (); | |
773 | ||
b3dc826b | 774 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
775 | } |
776 | ||
777 | /* In synchronous case, all is well, just use the regular for loop. */ | |
362646f5 | 778 | if (!target_can_async_p ()) |
c2d11a7d JM |
779 | { |
780 | for (; count > 0; count--) | |
781 | { | |
4e1c45ea | 782 | struct thread_info *tp = inferior_thread (); |
c2d11a7d JM |
783 | clear_proceed_status (); |
784 | ||
785 | frame = get_current_frame (); | |
4e1c45ea | 786 | tp->step_frame_id = get_frame_id (frame); |
c2d11a7d JM |
787 | |
788 | if (!single_inst) | |
789 | { | |
4e1c45ea PA |
790 | find_pc_line_pc_range (stop_pc, |
791 | &tp->step_range_start, &tp->step_range_end); | |
792 | if (tp->step_range_end == 0) | |
c2d11a7d JM |
793 | { |
794 | char *name; | |
4e1c45ea PA |
795 | if (find_pc_partial_function (stop_pc, &name, |
796 | &tp->step_range_start, | |
797 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 798 | error (_("Cannot find bounds of current function")); |
c2d11a7d JM |
799 | |
800 | target_terminal_ours (); | |
a3f17187 | 801 | printf_filtered (_("\ |
c2d11a7d | 802 | Single stepping until exit from function %s, \n\ |
a3f17187 | 803 | which has no line number information.\n"), name); |
c2d11a7d JM |
804 | } |
805 | } | |
806 | else | |
807 | { | |
808 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 809 | tp->step_range_start = tp->step_range_end = 1; |
c2d11a7d JM |
810 | if (!skip_subroutines) |
811 | /* It is stepi. | |
812 | Don't step over function calls, not even to functions lacking | |
813 | line numbers. */ | |
078130d0 | 814 | tp->step_over_calls = STEP_OVER_NONE; |
c2d11a7d JM |
815 | } |
816 | ||
817 | if (skip_subroutines) | |
078130d0 | 818 | tp->step_over_calls = STEP_OVER_ALL; |
c2d11a7d | 819 | |
af679fd0 | 820 | tp->step_multi = (count > 1); |
c2d11a7d JM |
821 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
822 | ||
414c69f7 PA |
823 | if (!target_has_execution |
824 | || !inferior_thread ()->stop_step) | |
c2d11a7d | 825 | break; |
c2d11a7d JM |
826 | } |
827 | ||
f107f563 | 828 | do_cleanups (cleanups); |
c2d11a7d JM |
829 | return; |
830 | } | |
831 | /* In case of asynchronous target things get complicated, do only | |
832 | one step for now, before returning control to the event loop. Let | |
833 | the continuation figure out how many other steps we need to do, | |
834 | and handle them one at the time, through step_once(). */ | |
835 | else | |
836 | { | |
b3dc826b | 837 | step_once (skip_subroutines, single_inst, count, thread); |
611c83ae | 838 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
839 | disable the longjmp breakpoint as appropriate. */ |
840 | discard_cleanups (cleanups); | |
c906108c | 841 | } |
c2d11a7d | 842 | } |
c906108c | 843 | |
bfec99b2 PA |
844 | struct step_1_continuation_args |
845 | { | |
846 | int count; | |
847 | int skip_subroutines; | |
848 | int single_inst; | |
849 | int thread; | |
850 | }; | |
851 | ||
c2d11a7d JM |
852 | /* Called after we are done with one step operation, to check whether |
853 | we need to step again, before we print the prompt and return control | |
854 | to the user. If count is > 1, we will need to do one more call to | |
855 | proceed(), via step_once(). Basically it is like step_once and | |
856 | step_1_continuation are co-recursive. */ | |
857 | static void | |
604ead4a | 858 | step_1_continuation (void *args) |
c2d11a7d | 859 | { |
bfec99b2 | 860 | struct step_1_continuation_args *a = args; |
f13468d9 | 861 | |
af679fd0 | 862 | if (target_has_execution) |
f13468d9 | 863 | { |
af679fd0 PA |
864 | struct thread_info *tp; |
865 | ||
866 | tp = inferior_thread (); | |
414c69f7 | 867 | if (tp->step_multi && tp->stop_step) |
af679fd0 PA |
868 | { |
869 | /* There are more steps to make, and we did stop due to | |
870 | ending a stepping range. Do another step. */ | |
871 | step_once (a->skip_subroutines, a->single_inst, a->count - 1, a->thread); | |
872 | return; | |
873 | } | |
874 | tp->step_multi = 0; | |
f107f563 | 875 | } |
af679fd0 PA |
876 | |
877 | /* We either stopped for some reason that is not stepping, or there | |
878 | are no further steps to make. Cleanup. */ | |
879 | if (!a->single_inst || a->skip_subroutines) | |
880 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
881 | } |
882 | ||
883 | /* Do just one step operation. If count >1 we will have to set up a | |
884 | continuation to be done after the target stops (after this one | |
885 | step). This is useful to implement the 'step n' kind of commands, in | |
886 | case of asynchronous targets. We had to split step_1 into two parts, | |
887 | one to be done before proceed() and one afterwards. This function is | |
888 | called in case of step n with n>1, after the first step operation has | |
889 | been completed.*/ | |
890 | static void | |
611c83ae | 891 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 892 | { |
0d06e24b | 893 | struct frame_info *frame; |
bfec99b2 | 894 | struct step_1_continuation_args *args; |
c2d11a7d JM |
895 | |
896 | if (count > 0) | |
c906108c | 897 | { |
4e1c45ea PA |
898 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
899 | the longjmp breakpoint was not required. Use the | |
900 | INFERIOR_PTID thread instead, which is the same thread when | |
901 | THREAD is set. */ | |
902 | struct thread_info *tp = inferior_thread (); | |
c906108c SS |
903 | clear_proceed_status (); |
904 | ||
905 | frame = get_current_frame (); | |
c5aa993b | 906 | if (!frame) /* Avoid coredump here. Why tho? */ |
8a3fe4f8 | 907 | error (_("No current frame")); |
4e1c45ea | 908 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 909 | |
c5aa993b | 910 | if (!single_inst) |
c906108c | 911 | { |
4e1c45ea PA |
912 | find_pc_line_pc_range (stop_pc, |
913 | &tp->step_range_start, &tp->step_range_end); | |
5fbbeb29 CF |
914 | |
915 | /* If we have no line info, switch to stepi mode. */ | |
4e1c45ea | 916 | if (tp->step_range_end == 0 && step_stop_if_no_debug) |
5fbbeb29 | 917 | { |
4e1c45ea | 918 | tp->step_range_start = tp->step_range_end = 1; |
5fbbeb29 | 919 | } |
4e1c45ea | 920 | else if (tp->step_range_end == 0) |
c906108c SS |
921 | { |
922 | char *name; | |
4e1c45ea PA |
923 | if (find_pc_partial_function (stop_pc, &name, |
924 | &tp->step_range_start, | |
925 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 926 | error (_("Cannot find bounds of current function")); |
c906108c SS |
927 | |
928 | target_terminal_ours (); | |
a3f17187 | 929 | printf_filtered (_("\ |
c906108c | 930 | Single stepping until exit from function %s, \n\ |
a3f17187 | 931 | which has no line number information.\n"), name); |
c906108c SS |
932 | } |
933 | } | |
934 | else | |
935 | { | |
936 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 937 | tp->step_range_start = tp->step_range_end = 1; |
c906108c SS |
938 | if (!skip_subroutines) |
939 | /* It is stepi. | |
940 | Don't step over function calls, not even to functions lacking | |
941 | line numbers. */ | |
078130d0 | 942 | tp->step_over_calls = STEP_OVER_NONE; |
c906108c SS |
943 | } |
944 | ||
945 | if (skip_subroutines) | |
078130d0 | 946 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c | 947 | |
95e54da7 | 948 | tp->step_multi = (count > 1); |
f107f563 | 949 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 PA |
950 | |
951 | args = xmalloc (sizeof (*args)); | |
952 | args->skip_subroutines = skip_subroutines; | |
953 | args->single_inst = single_inst; | |
954 | args->count = count; | |
955 | args->thread = thread; | |
95e54da7 | 956 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); |
c906108c | 957 | } |
c906108c | 958 | } |
c2d11a7d | 959 | |
c906108c SS |
960 | \f |
961 | /* Continue program at specified address. */ | |
962 | ||
963 | static void | |
fba45db2 | 964 | jump_command (char *arg, int from_tty) |
c906108c | 965 | { |
52f0bd74 | 966 | CORE_ADDR addr; |
c906108c SS |
967 | struct symtabs_and_lines sals; |
968 | struct symtab_and_line sal; | |
969 | struct symbol *fn; | |
970 | struct symbol *sfn; | |
43ff13b4 | 971 | int async_exec = 0; |
c5aa993b | 972 | |
c906108c | 973 | ERROR_NO_INFERIOR; |
94cc34af | 974 | ensure_not_running (); |
c906108c | 975 | |
43ff13b4 JM |
976 | /* Find out whether we must run in the background. */ |
977 | if (arg != NULL) | |
978 | async_exec = strip_bg_char (&arg); | |
979 | ||
980 | /* If we must run in the background, but the target can't do it, | |
981 | error out. */ | |
362646f5 | 982 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 983 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 984 | |
c906108c | 985 | if (!arg) |
e2e0b3e5 | 986 | error_no_arg (_("starting address")); |
c906108c SS |
987 | |
988 | sals = decode_line_spec_1 (arg, 1); | |
989 | if (sals.nelts != 1) | |
990 | { | |
8a3fe4f8 | 991 | error (_("Unreasonable jump request")); |
c906108c SS |
992 | } |
993 | ||
994 | sal = sals.sals[0]; | |
b8c9b27d | 995 | xfree (sals.sals); |
c906108c SS |
996 | |
997 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 998 | error (_("No source file has been specified.")); |
c906108c | 999 | |
c5aa993b | 1000 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1001 | |
1002 | /* See if we are trying to jump to another function. */ | |
1003 | fn = get_frame_function (get_current_frame ()); | |
1004 | sfn = find_pc_function (sal.pc); | |
1005 | if (fn != NULL && sfn != fn) | |
1006 | { | |
1007 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, | |
de5ad195 | 1008 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1009 | { |
8a3fe4f8 | 1010 | error (_("Not confirmed.")); |
c906108c SS |
1011 | /* NOTREACHED */ |
1012 | } | |
1013 | } | |
1014 | ||
c5aa993b | 1015 | if (sfn != NULL) |
c906108c SS |
1016 | { |
1017 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1018 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1019 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c SS |
1020 | { |
1021 | if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")) | |
1022 | { | |
8a3fe4f8 | 1023 | error (_("Not confirmed.")); |
c906108c SS |
1024 | /* NOTREACHED */ |
1025 | } | |
1026 | } | |
1027 | } | |
1028 | ||
c906108c SS |
1029 | addr = sal.pc; |
1030 | ||
1031 | if (from_tty) | |
1032 | { | |
a3f17187 | 1033 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1034 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1035 | printf_filtered (".\n"); |
1036 | } | |
1037 | ||
89113898 PA |
1038 | /* If we are not asked to run in the bg, then prepare to run in the |
1039 | foreground, synchronously. */ | |
1040 | if (!async_exec && target_can_async_p ()) | |
1041 | { | |
1042 | /* Simulate synchronous execution */ | |
1043 | async_disable_stdin (); | |
1044 | } | |
1045 | ||
c906108c SS |
1046 | clear_proceed_status (); |
1047 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1048 | } | |
c906108c | 1049 | \f |
c5aa993b | 1050 | |
c906108c SS |
1051 | /* Go to line or address in current procedure */ |
1052 | static void | |
fba45db2 | 1053 | go_command (char *line_no, int from_tty) |
c906108c | 1054 | { |
c5aa993b | 1055 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1056 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1057 | else |
1058 | { | |
b83266a0 SS |
1059 | tbreak_command (line_no, from_tty); |
1060 | jump_command (line_no, from_tty); | |
c906108c SS |
1061 | } |
1062 | } | |
c906108c | 1063 | \f |
c5aa993b | 1064 | |
c906108c SS |
1065 | /* Continue program giving it specified signal. */ |
1066 | ||
1067 | static void | |
fba45db2 | 1068 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1069 | { |
1070 | enum target_signal oursig; | |
32c1e744 | 1071 | int async_exec = 0; |
c906108c SS |
1072 | |
1073 | dont_repeat (); /* Too dangerous. */ | |
1074 | ERROR_NO_INFERIOR; | |
94cc34af | 1075 | ensure_not_running (); |
c906108c | 1076 | |
32c1e744 VP |
1077 | /* Find out whether we must run in the background. */ |
1078 | if (signum_exp != NULL) | |
1079 | async_exec = strip_bg_char (&signum_exp); | |
1080 | ||
1081 | /* If we must run in the background, but the target can't do it, | |
1082 | error out. */ | |
1083 | if (async_exec && !target_can_async_p ()) | |
1084 | error (_("Asynchronous execution not supported on this target.")); | |
1085 | ||
1086 | /* If we are not asked to run in the bg, then prepare to run in the | |
1087 | foreground, synchronously. */ | |
1088 | if (!async_exec && target_can_async_p ()) | |
1089 | { | |
1090 | /* Simulate synchronous execution. */ | |
1091 | async_disable_stdin (); | |
1092 | } | |
1093 | ||
c906108c | 1094 | if (!signum_exp) |
e2e0b3e5 | 1095 | error_no_arg (_("signal number")); |
c906108c SS |
1096 | |
1097 | /* It would be even slicker to make signal names be valid expressions, | |
1098 | (the type could be "enum $signal" or some such), then the user could | |
1099 | assign them to convenience variables. */ | |
1100 | oursig = target_signal_from_name (signum_exp); | |
1101 | ||
1102 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1103 | { | |
1104 | /* No, try numeric. */ | |
bb518678 | 1105 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1106 | |
1107 | if (num == 0) | |
1108 | oursig = TARGET_SIGNAL_0; | |
1109 | else | |
1110 | oursig = target_signal_from_command (num); | |
1111 | } | |
1112 | ||
1113 | if (from_tty) | |
1114 | { | |
1115 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1116 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1117 | else |
a3f17187 | 1118 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1119 | target_signal_to_name (oursig)); |
1120 | } | |
1121 | ||
1122 | clear_proceed_status (); | |
1123 | /* "signal 0" should not get stuck if we are stopped at a breakpoint. | |
1124 | FIXME: Neither should "signal foo" but when I tried passing | |
1125 | (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't | |
1126 | tried to track down yet. */ | |
2acceee2 | 1127 | proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0); |
c906108c SS |
1128 | } |
1129 | ||
c906108c SS |
1130 | /* Proceed until we reach a different source line with pc greater than |
1131 | our current one or exit the function. We skip calls in both cases. | |
1132 | ||
1133 | Note that eventually this command should probably be changed so | |
1134 | that only source lines are printed out when we hit the breakpoint | |
1135 | we set. This may involve changes to wait_for_inferior and the | |
1136 | proceed status code. */ | |
1137 | ||
c906108c | 1138 | static void |
fba45db2 | 1139 | until_next_command (int from_tty) |
c906108c SS |
1140 | { |
1141 | struct frame_info *frame; | |
1142 | CORE_ADDR pc; | |
1143 | struct symbol *func; | |
1144 | struct symtab_and_line sal; | |
4e1c45ea | 1145 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1146 | |
c906108c SS |
1147 | clear_proceed_status (); |
1148 | ||
1149 | frame = get_current_frame (); | |
1150 | ||
1151 | /* Step until either exited from this function or greater | |
1152 | than the current line (if in symbolic section) or pc (if | |
1153 | not). */ | |
1154 | ||
1155 | pc = read_pc (); | |
1156 | func = find_pc_function (pc); | |
c5aa993b | 1157 | |
c906108c SS |
1158 | if (!func) |
1159 | { | |
1160 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1161 | |
c906108c | 1162 | if (msymbol == NULL) |
8a3fe4f8 | 1163 | error (_("Execution is not within a known function.")); |
c5aa993b | 1164 | |
4e1c45ea PA |
1165 | tp->step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1166 | tp->step_range_end = pc; | |
c906108c SS |
1167 | } |
1168 | else | |
1169 | { | |
1170 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1171 | |
4e1c45ea PA |
1172 | tp->step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1173 | tp->step_range_end = sal.end; | |
c906108c | 1174 | } |
c5aa993b | 1175 | |
078130d0 | 1176 | tp->step_over_calls = STEP_OVER_ALL; |
4e1c45ea | 1177 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 1178 | |
af679fd0 | 1179 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1180 | |
2acceee2 | 1181 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1182 | } |
1183 | ||
c5aa993b | 1184 | static void |
fba45db2 | 1185 | until_command (char *arg, int from_tty) |
c906108c | 1186 | { |
43ff13b4 JM |
1187 | int async_exec = 0; |
1188 | ||
c906108c | 1189 | if (!target_has_execution) |
8a3fe4f8 | 1190 | error (_("The program is not running.")); |
43ff13b4 JM |
1191 | |
1192 | /* Find out whether we must run in the background. */ | |
1193 | if (arg != NULL) | |
1194 | async_exec = strip_bg_char (&arg); | |
1195 | ||
1196 | /* If we must run in the background, but the target can't do it, | |
1197 | error out. */ | |
362646f5 | 1198 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1199 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1200 | |
1201 | /* If we are not asked to run in the bg, then prepare to run in the | |
1202 | foreground, synchronously. */ | |
362646f5 | 1203 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1204 | { |
43ff13b4 | 1205 | /* Simulate synchronous execution */ |
6426a772 | 1206 | async_disable_stdin (); |
43ff13b4 JM |
1207 | } |
1208 | ||
c906108c | 1209 | if (arg) |
ae66c1fc | 1210 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1211 | else |
1212 | until_next_command (from_tty); | |
1213 | } | |
ae66c1fc EZ |
1214 | |
1215 | static void | |
1216 | advance_command (char *arg, int from_tty) | |
1217 | { | |
1218 | int async_exec = 0; | |
1219 | ||
1220 | if (!target_has_execution) | |
8a3fe4f8 | 1221 | error (_("The program is not running.")); |
ae66c1fc EZ |
1222 | |
1223 | if (arg == NULL) | |
e2e0b3e5 | 1224 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1225 | |
1226 | /* Find out whether we must run in the background. */ | |
1227 | if (arg != NULL) | |
1228 | async_exec = strip_bg_char (&arg); | |
1229 | ||
1230 | /* If we must run in the background, but the target can't do it, | |
1231 | error out. */ | |
362646f5 | 1232 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1233 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1234 | |
1235 | /* If we are not asked to run in the bg, then prepare to run in the | |
1236 | foreground, synchronously. */ | |
362646f5 | 1237 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1238 | { |
1239 | /* Simulate synchronous execution. */ | |
1240 | async_disable_stdin (); | |
1241 | } | |
1242 | ||
1243 | until_break_command (arg, from_tty, 1); | |
1244 | } | |
c906108c | 1245 | \f |
f941662f MK |
1246 | /* Print the result of a function at the end of a 'finish' command. */ |
1247 | ||
11cf8741 | 1248 | static void |
c055b101 | 1249 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1250 | { |
31db7b6c | 1251 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1252 | struct cleanup *old_chain; |
1253 | struct ui_stream *stb; | |
44e5158b AC |
1254 | struct value *value; |
1255 | ||
181fc57c | 1256 | CHECK_TYPEDEF (value_type); |
44e5158b | 1257 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1258 | |
92ad9cd9 AC |
1259 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1260 | call, it's possible (with no help from the architecture vector) | |
1261 | to locate and return/print a "struct return" value. This is just | |
1262 | a more complicated case of what is already being done in in the | |
1263 | inferior function call code. In fact, when inferior function | |
1264 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1265 | |
c055b101 CV |
1266 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1267 | NULL, NULL, NULL)) | |
44e5158b | 1268 | { |
750eb019 AC |
1269 | case RETURN_VALUE_REGISTER_CONVENTION: |
1270 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1271 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1272 | value = allocate_value (value_type); |
c055b101 | 1273 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1274 | value_contents_raw (value), NULL); |
750eb019 AC |
1275 | break; |
1276 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1277 | value = NULL; | |
1278 | break; | |
1279 | default: | |
e2e0b3e5 | 1280 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1281 | } |
bb472c1e | 1282 | |
31db7b6c MK |
1283 | if (value) |
1284 | { | |
1285 | /* Print it. */ | |
1d751abe PA |
1286 | stb = ui_out_stream_new (uiout); |
1287 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1288 | ui_out_text (uiout, "Value returned is "); |
1289 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1290 | record_latest_value (value)); | |
1291 | ui_out_text (uiout, " = "); | |
1292 | value_print (value, stb->stream, 0, Val_no_prettyprint); | |
1293 | ui_out_field_stream (uiout, "return-value", stb); | |
1294 | ui_out_text (uiout, "\n"); | |
1d751abe | 1295 | do_cleanups (old_chain); |
31db7b6c MK |
1296 | } |
1297 | else | |
1298 | { | |
1299 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1300 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1301 | ui_out_text (uiout, "."); | |
1302 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1303 | } |
11cf8741 JM |
1304 | } |
1305 | ||
43ff13b4 | 1306 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1307 | has stopped. In asynchronous mode, we wait for the target to stop |
1308 | in the call to poll or select in the event loop, so it is | |
1309 | impossible to do all the stuff as part of the finish_command | |
1310 | function itself. The only chance we have to complete this command | |
1311 | is in fetch_inferior_event, which is called by the event loop as | |
1312 | soon as it detects that the target has stopped. This function is | |
1313 | called via the cmd_continuation pointer. */ | |
1314 | ||
bfec99b2 | 1315 | struct finish_command_continuation_args |
43ff13b4 | 1316 | { |
43ff13b4 | 1317 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1318 | struct symbol *function; |
1319 | }; | |
c5aa993b | 1320 | |
bfec99b2 | 1321 | static void |
604ead4a | 1322 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1323 | { |
1324 | struct finish_command_continuation_args *a = arg; | |
43ff13b4 | 1325 | |
347bddb7 PA |
1326 | bpstat bs = NULL; |
1327 | ||
1328 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1329 | && target_has_execution | |
1330 | && is_stopped (inferior_ptid)) | |
1331 | bs = inferior_thread ()->stop_bpstat; | |
1332 | ||
1333 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1334 | && a->function != NULL) |
43ff13b4 | 1335 | { |
604ead4a | 1336 | struct type *value_type; |
bfec99b2 | 1337 | |
604ead4a PA |
1338 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1339 | if (!value_type) | |
1340 | internal_error (__FILE__, __LINE__, | |
1341 | _("finish_command: function has no target type")); | |
f5871ec0 | 1342 | |
604ead4a PA |
1343 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
1344 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
43ff13b4 | 1345 | } |
f941662f | 1346 | |
604ead4a PA |
1347 | /* We suppress normal call of normal_stop observer and do it here so |
1348 | that that *stopped notification includes the return value. */ | |
1349 | /* NOTE: This is broken in non-stop mode. There is no guarantee the | |
1350 | next stop will be in the same thread that we started doing a | |
1351 | finish on. This suppressing (or some other replacement means) | |
1352 | should be a thread property. */ | |
347bddb7 | 1353 | observer_notify_normal_stop (bs); |
8f6a8e84 | 1354 | suppress_stop_observer = 0; |
bfec99b2 | 1355 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1356 | } |
1357 | ||
604ead4a PA |
1358 | static void |
1359 | finish_command_continuation_free_arg (void *arg) | |
1360 | { | |
1361 | /* NOTE: See finish_command_continuation. This would go away, if | |
1362 | this suppressing is made a thread property. */ | |
1363 | suppress_stop_observer = 0; | |
1364 | xfree (arg); | |
1365 | } | |
1366 | ||
b2175913 MS |
1367 | /* finish_backward -- helper function for finish_command. */ |
1368 | ||
1369 | static void | |
1370 | finish_backward (struct symbol *function) | |
1371 | { | |
1372 | struct symtab_and_line sal; | |
1373 | struct thread_info *tp = inferior_thread (); | |
1374 | struct breakpoint *breakpoint; | |
1375 | struct cleanup *old_chain; | |
1376 | CORE_ADDR func_addr; | |
1377 | int back_up; | |
1378 | ||
1379 | if (find_pc_partial_function (get_frame_pc (get_current_frame ()), | |
1380 | NULL, &func_addr, NULL) == 0) | |
1381 | internal_error (__FILE__, __LINE__, | |
1382 | _("Finish: couldn't find function.")); | |
1383 | ||
1384 | sal = find_pc_line (func_addr, 0); | |
1385 | ||
1386 | /* We don't need a return value. */ | |
1387 | tp->proceed_to_finish = 0; | |
1388 | /* Special case: if we're sitting at the function entry point, | |
1389 | then all we need to do is take a reverse singlestep. We | |
1390 | don't need to set a breakpoint, and indeed it would do us | |
1391 | no good to do so. | |
1392 | ||
1393 | Note that this can only happen at frame #0, since there's | |
1394 | no way that a function up the stack can have a return address | |
1395 | that's equal to its entry point. */ | |
1396 | ||
1397 | if (sal.pc != read_pc ()) | |
1398 | { | |
1399 | /* Set breakpoint and continue. */ | |
1400 | breakpoint = | |
1401 | set_momentary_breakpoint (sal, | |
1402 | get_frame_id (get_selected_frame (NULL)), | |
1403 | bp_breakpoint); | |
1404 | /* Tell the breakpoint to keep quiet. We won't be done | |
1405 | until we've done another reverse single-step. */ | |
1406 | make_breakpoint_silent (breakpoint); | |
1407 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1408 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1409 | /* We will be stopped when proceed returns. */ | |
1410 | back_up = bpstat_find_breakpoint (tp->stop_bpstat, breakpoint) != NULL; | |
1411 | do_cleanups (old_chain); | |
1412 | } | |
1413 | else | |
1414 | back_up = 1; | |
1415 | if (back_up) | |
1416 | { | |
1417 | /* If in fact we hit the step-resume breakpoint (and not | |
1418 | some other breakpoint), then we're almost there -- | |
1419 | we just need to back up by one more single-step. */ | |
1420 | tp->step_range_start = tp->step_range_end = 1; | |
1421 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1422 | } | |
1423 | return; | |
1424 | } | |
1425 | ||
1426 | /* finish_forward -- helper function for finish_command. */ | |
1427 | ||
1428 | static void | |
1429 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1430 | { | |
1431 | struct symtab_and_line sal; | |
1432 | struct thread_info *tp = inferior_thread (); | |
1433 | struct breakpoint *breakpoint; | |
1434 | struct cleanup *old_chain; | |
1435 | struct finish_command_continuation_args *cargs; | |
1436 | ||
1437 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1438 | sal.pc = get_frame_pc (frame); | |
1439 | ||
1440 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), | |
1441 | bp_finish); | |
1442 | ||
1443 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1444 | ||
1445 | tp->proceed_to_finish = 1; /* We want stop_registers, please... */ | |
1446 | make_cleanup_restore_integer (&suppress_stop_observer); | |
1447 | suppress_stop_observer = 1; | |
1448 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1449 | ||
1450 | cargs = xmalloc (sizeof (*cargs)); | |
1451 | ||
1452 | cargs->breakpoint = breakpoint; | |
1453 | cargs->function = function; | |
1454 | add_continuation (tp, finish_command_continuation, cargs, | |
1455 | finish_command_continuation_free_arg); | |
1456 | ||
1457 | discard_cleanups (old_chain); | |
1458 | if (!target_can_async_p ()) | |
1459 | do_all_continuations (); | |
1460 | } | |
1461 | ||
f941662f MK |
1462 | /* "finish": Set a temporary breakpoint at the place the selected |
1463 | frame will return to, then continue. */ | |
c906108c SS |
1464 | |
1465 | static void | |
fba45db2 | 1466 | finish_command (char *arg, int from_tty) |
c906108c | 1467 | { |
52f0bd74 AC |
1468 | struct frame_info *frame; |
1469 | struct symbol *function; | |
43ff13b4 JM |
1470 | |
1471 | int async_exec = 0; | |
1472 | ||
f941662f | 1473 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1474 | if (arg != NULL) |
1475 | async_exec = strip_bg_char (&arg); | |
1476 | ||
1477 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1478 | error out. */ |
362646f5 | 1479 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1480 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1481 | |
b2175913 MS |
1482 | /* Don't try to async in reverse. */ |
1483 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1484 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1485 | ||
43ff13b4 | 1486 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1487 | foreground, synchronously. */ |
362646f5 | 1488 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1489 | { |
f941662f | 1490 | /* Simulate synchronous execution. */ |
6426a772 | 1491 | async_disable_stdin (); |
43ff13b4 | 1492 | } |
c906108c SS |
1493 | |
1494 | if (arg) | |
8a3fe4f8 | 1495 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1496 | if (!target_has_execution) |
8a3fe4f8 | 1497 | error (_("The program is not running.")); |
c906108c | 1498 | |
206415a3 | 1499 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1500 | if (frame == 0) |
8a3fe4f8 | 1501 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1502 | |
1503 | clear_proceed_status (); | |
1504 | ||
c906108c SS |
1505 | /* Find the function we will return from. */ |
1506 | ||
206415a3 | 1507 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1508 | |
f941662f MK |
1509 | /* Print info on the selected frame, including level number but not |
1510 | source. */ | |
c906108c SS |
1511 | if (from_tty) |
1512 | { | |
b2175913 MS |
1513 | if (execution_direction == EXEC_REVERSE) |
1514 | printf_filtered (_("Run back to call of ")); | |
1515 | else | |
1516 | printf_filtered (_("Run till exit from ")); | |
1517 | ||
b04f3ab4 | 1518 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1519 | } |
1520 | ||
b2175913 MS |
1521 | if (execution_direction == EXEC_REVERSE) |
1522 | finish_backward (function); | |
1523 | else | |
1524 | finish_forward (function, frame); | |
c906108c SS |
1525 | } |
1526 | \f | |
f941662f | 1527 | |
c906108c | 1528 | static void |
fba45db2 | 1529 | program_info (char *args, int from_tty) |
c906108c | 1530 | { |
347bddb7 PA |
1531 | bpstat bs; |
1532 | int num, stat; | |
1533 | struct thread_info *tp; | |
1534 | ptid_t ptid; | |
c5aa993b | 1535 | |
c906108c SS |
1536 | if (!target_has_execution) |
1537 | { | |
a3f17187 | 1538 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1539 | return; |
1540 | } | |
1541 | ||
347bddb7 PA |
1542 | if (non_stop) |
1543 | ptid = inferior_ptid; | |
1544 | else | |
1545 | { | |
1546 | struct target_waitstatus ws; | |
1547 | get_last_target_status (&ptid, &ws); | |
1548 | } | |
1549 | ||
1550 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1551 | error (_("Invalid selected thread.")); | |
1552 | else if (is_running (ptid)) | |
1553 | error (_("Selected thread is running.")); | |
1554 | ||
1555 | tp = find_thread_pid (ptid); | |
1556 | bs = tp->stop_bpstat; | |
1557 | stat = bpstat_num (&bs, &num); | |
1558 | ||
c906108c | 1559 | target_files_info (); |
a3f17187 | 1560 | printf_filtered (_("Program stopped at %s.\n"), |
bb599908 | 1561 | hex_string ((unsigned long) stop_pc)); |
414c69f7 | 1562 | if (tp->stop_step) |
a3f17187 | 1563 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1564 | else if (stat != 0) |
c906108c SS |
1565 | { |
1566 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1567 | isn't as strange as it seems. */ |
8671a17b | 1568 | while (stat != 0) |
c906108c | 1569 | { |
8671a17b | 1570 | if (stat < 0) |
c906108c | 1571 | { |
a3f17187 AC |
1572 | printf_filtered (_("\ |
1573 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1574 | } |
1575 | else | |
a3f17187 | 1576 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1577 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1578 | } |
1579 | } | |
2020b7ab | 1580 | else if (tp->stop_signal != TARGET_SIGNAL_0) |
c906108c | 1581 | { |
a3f17187 | 1582 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2020b7ab PA |
1583 | target_signal_to_name (tp->stop_signal), |
1584 | target_signal_to_string (tp->stop_signal)); | |
c906108c SS |
1585 | } |
1586 | ||
1587 | if (!from_tty) | |
1588 | { | |
a3f17187 AC |
1589 | printf_filtered (_("\ |
1590 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1591 | } |
1592 | } | |
1593 | \f | |
1594 | static void | |
fba45db2 | 1595 | environment_info (char *var, int from_tty) |
c906108c SS |
1596 | { |
1597 | if (var) | |
1598 | { | |
aa1ee363 | 1599 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1600 | if (val) |
1601 | { | |
1602 | puts_filtered (var); | |
1603 | puts_filtered (" = "); | |
1604 | puts_filtered (val); | |
1605 | puts_filtered ("\n"); | |
1606 | } | |
1607 | else | |
1608 | { | |
1609 | puts_filtered ("Environment variable \""); | |
1610 | puts_filtered (var); | |
1611 | puts_filtered ("\" not defined.\n"); | |
1612 | } | |
1613 | } | |
1614 | else | |
1615 | { | |
aa1ee363 | 1616 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1617 | while (*vector) |
1618 | { | |
1619 | puts_filtered (*vector++); | |
1620 | puts_filtered ("\n"); | |
1621 | } | |
1622 | } | |
1623 | } | |
1624 | ||
1625 | static void | |
fba45db2 | 1626 | set_environment_command (char *arg, int from_tty) |
c906108c | 1627 | { |
52f0bd74 | 1628 | char *p, *val, *var; |
c906108c SS |
1629 | int nullset = 0; |
1630 | ||
1631 | if (arg == 0) | |
e2e0b3e5 | 1632 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1633 | |
1634 | /* Find seperation between variable name and value */ | |
1635 | p = (char *) strchr (arg, '='); | |
1636 | val = (char *) strchr (arg, ' '); | |
1637 | ||
1638 | if (p != 0 && val != 0) | |
1639 | { | |
1640 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1641 | equals, walk forward over the spaces til we see a nonspace |
1642 | (possibly the equals). */ | |
c906108c SS |
1643 | if (p > val) |
1644 | while (*val == ' ') | |
1645 | val++; | |
1646 | ||
1647 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1648 | take the char following the spaces. */ |
c906108c SS |
1649 | if (p > val) |
1650 | p = val - 1; | |
1651 | } | |
1652 | else if (val != 0 && p == 0) | |
1653 | p = val; | |
1654 | ||
1655 | if (p == arg) | |
e2e0b3e5 | 1656 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1657 | |
1658 | if (p == 0 || p[1] == 0) | |
1659 | { | |
1660 | nullset = 1; | |
1661 | if (p == 0) | |
1662 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1663 | } | |
1664 | else | |
1665 | { | |
1666 | /* Not setting variable value to null */ | |
1667 | val = p + 1; | |
1668 | while (*val == ' ' || *val == '\t') | |
1669 | val++; | |
1670 | } | |
1671 | ||
c5aa993b JM |
1672 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1673 | p--; | |
c906108c SS |
1674 | |
1675 | var = savestring (arg, p - arg); | |
1676 | if (nullset) | |
1677 | { | |
a3f17187 AC |
1678 | printf_filtered (_("\ |
1679 | Setting environment variable \"%s\" to null value.\n"), | |
1680 | var); | |
c906108c SS |
1681 | set_in_environ (inferior_environ, var, ""); |
1682 | } | |
1683 | else | |
1684 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1685 | xfree (var); |
c906108c SS |
1686 | } |
1687 | ||
1688 | static void | |
fba45db2 | 1689 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1690 | { |
1691 | if (var == 0) | |
1692 | { | |
1693 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1694 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1695 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1696 | { |
1697 | free_environ (inferior_environ); | |
1698 | inferior_environ = make_environ (); | |
1699 | } | |
1700 | } | |
1701 | else | |
1702 | unset_in_environ (inferior_environ, var); | |
1703 | } | |
1704 | ||
1705 | /* Handle the execution path (PATH variable) */ | |
1706 | ||
1707 | static const char path_var_name[] = "PATH"; | |
1708 | ||
c906108c | 1709 | static void |
fba45db2 | 1710 | path_info (char *args, int from_tty) |
c906108c SS |
1711 | { |
1712 | puts_filtered ("Executable and object file path: "); | |
1713 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1714 | puts_filtered ("\n"); | |
1715 | } | |
1716 | ||
1717 | /* Add zero or more directories to the front of the execution path. */ | |
1718 | ||
1719 | static void | |
fba45db2 | 1720 | path_command (char *dirname, int from_tty) |
c906108c SS |
1721 | { |
1722 | char *exec_path; | |
1723 | char *env; | |
1724 | dont_repeat (); | |
1725 | env = get_in_environ (inferior_environ, path_var_name); | |
1726 | /* Can be null if path is not set */ | |
1727 | if (!env) | |
1728 | env = ""; | |
4fcf66da | 1729 | exec_path = xstrdup (env); |
c906108c SS |
1730 | mod_path (dirname, &exec_path); |
1731 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1732 | xfree (exec_path); |
c906108c | 1733 | if (from_tty) |
c5aa993b | 1734 | path_info ((char *) NULL, from_tty); |
c906108c | 1735 | } |
c906108c | 1736 | \f |
c5aa993b | 1737 | |
4782dc19 | 1738 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1739 | registers (print_all == 1) or all non-float and non-vector |
1740 | registers (print_all == 0). | |
c906108c SS |
1741 | |
1742 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1743 | register(s) one per line is good enough. If a different format is |
1744 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1745 | regs), or there is an existing convention for showing all the | |
1746 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1747 | provide that format. */ | |
c906108c | 1748 | |
666e11c5 | 1749 | void |
0ab7a791 AC |
1750 | default_print_registers_info (struct gdbarch *gdbarch, |
1751 | struct ui_file *file, | |
1752 | struct frame_info *frame, | |
1753 | int regnum, int print_all) | |
c906108c | 1754 | { |
0ab7a791 | 1755 | int i; |
a4bd449d UW |
1756 | const int numregs = gdbarch_num_regs (gdbarch) |
1757 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1758 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1759 | |
c906108c SS |
1760 | for (i = 0; i < numregs; i++) |
1761 | { | |
4782dc19 AC |
1762 | /* Decide between printing all regs, non-float / vector regs, or |
1763 | specific reg. */ | |
c5aa993b JM |
1764 | if (regnum == -1) |
1765 | { | |
f9418c0f | 1766 | if (print_all) |
4782dc19 | 1767 | { |
f9418c0f | 1768 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1769 | continue; |
f9418c0f AC |
1770 | } |
1771 | else | |
1772 | { | |
1773 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1774 | continue; |
1775 | } | |
c5aa993b JM |
1776 | } |
1777 | else | |
1778 | { | |
1779 | if (i != regnum) | |
1780 | continue; | |
1781 | } | |
c906108c SS |
1782 | |
1783 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1784 | processor, so don't display anything. */ |
a4bd449d UW |
1785 | if (gdbarch_register_name (gdbarch, i) == NULL |
1786 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1787 | continue; |
1788 | ||
a4bd449d | 1789 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1790 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1791 | (gdbarch, i)), file); |
c906108c SS |
1792 | |
1793 | /* Get the data in raw format. */ | |
9730f241 | 1794 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1795 | { |
0ab7a791 | 1796 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1797 | continue; |
1798 | } | |
1799 | ||
0ab7a791 AC |
1800 | /* If virtual format is floating, print it that way, and in raw |
1801 | hex. */ | |
f949c649 TJB |
1802 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1803 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1804 | { |
0ab7a791 | 1805 | int j; |
c906108c | 1806 | |
a4bd449d | 1807 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1808 | file, 0, 1, 0, Val_pretty_default, current_language); |
c906108c | 1809 | |
0ab7a791 | 1810 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1811 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1812 | { |
0ab7a791 | 1813 | int idx; |
a4bd449d | 1814 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1815 | idx = j; |
1816 | else | |
a4bd449d | 1817 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1818 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1819 | } |
0ab7a791 | 1820 | fprintf_filtered (file, ")"); |
c906108c | 1821 | } |
c906108c SS |
1822 | else |
1823 | { | |
ab4327e0 | 1824 | /* Print the register in hex. */ |
a4bd449d | 1825 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1826 | file, 'x', 1, 0, Val_pretty_default, current_language); |
ab4327e0 EZ |
1827 | /* If not a vector register, print it also according to its |
1828 | natural format. */ | |
a4bd449d | 1829 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1830 | { |
9d84ac84 | 1831 | fprintf_filtered (file, "\t"); |
a4bd449d | 1832 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1833 | file, 0, 1, 0, Val_pretty_default, current_language); |
ab4327e0 | 1834 | } |
c906108c SS |
1835 | } |
1836 | ||
0ab7a791 | 1837 | fprintf_filtered (file, "\n"); |
c906108c SS |
1838 | } |
1839 | } | |
c906108c | 1840 | |
c906108c | 1841 | void |
fba45db2 | 1842 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1843 | { |
206415a3 | 1844 | struct frame_info *frame; |
a4bd449d | 1845 | struct gdbarch *gdbarch; |
c906108c | 1846 | int regnum, numregs; |
52f0bd74 | 1847 | char *end; |
c906108c SS |
1848 | |
1849 | if (!target_has_registers) | |
8a3fe4f8 | 1850 | error (_("The program has no registers now.")); |
206415a3 | 1851 | frame = get_selected_frame (NULL); |
a4bd449d | 1852 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1853 | |
1854 | if (!addr_exp) | |
1855 | { | |
a4bd449d | 1856 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1857 | frame, -1, fpregs); |
c906108c SS |
1858 | return; |
1859 | } | |
1860 | ||
f9418c0f | 1861 | while (*addr_exp != '\0') |
c5aa993b | 1862 | { |
f9418c0f AC |
1863 | char *start; |
1864 | const char *end; | |
c906108c | 1865 | |
f9418c0f AC |
1866 | /* Keep skipping leading white space. */ |
1867 | if (isspace ((*addr_exp))) | |
1868 | { | |
1869 | addr_exp++; | |
1870 | continue; | |
1871 | } | |
c906108c | 1872 | |
f9418c0f AC |
1873 | /* Discard any leading ``$''. Check that there is something |
1874 | resembling a register following it. */ | |
1875 | if (addr_exp[0] == '$') | |
1876 | addr_exp++; | |
1877 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1878 | error (_("Missing register name")); |
c906108c | 1879 | |
f9418c0f AC |
1880 | /* Find the start/end of this register name/num/group. */ |
1881 | start = addr_exp; | |
1882 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1883 | addr_exp++; | |
1884 | end = addr_exp; | |
ad842144 | 1885 | |
f9418c0f AC |
1886 | /* Figure out what we've found and display it. */ |
1887 | ||
1888 | /* A register name? */ | |
1889 | { | |
029a67e4 | 1890 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
f9418c0f AC |
1891 | if (regnum >= 0) |
1892 | { | |
ad842144 MR |
1893 | /* User registers lie completely outside of the range of |
1894 | normal registers. Catch them early so that the target | |
1895 | never sees them. */ | |
1896 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1897 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1898 | { | |
1899 | struct value *val = value_of_user_reg (regnum, frame); | |
1900 | ||
1901 | printf_filtered ("%s: ", start); | |
1902 | print_scalar_formatted (value_contents (val), | |
1903 | check_typedef (value_type (val)), | |
1904 | 'x', 0, gdb_stdout); | |
1905 | printf_filtered ("\n"); | |
1906 | } | |
1907 | else | |
1908 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1909 | frame, regnum, fpregs); | |
f9418c0f AC |
1910 | continue; |
1911 | } | |
1912 | } | |
ad842144 | 1913 | |
f9418c0f AC |
1914 | /* A register number? (how portable is this one?). */ |
1915 | { | |
1916 | char *endptr; | |
1917 | int regnum = strtol (start, &endptr, 0); | |
1918 | if (endptr == end | |
1919 | && regnum >= 0 | |
a4bd449d UW |
1920 | && regnum < gdbarch_num_regs (gdbarch) |
1921 | + gdbarch_num_pseudo_regs (gdbarch)) | |
f9418c0f | 1922 | { |
a4bd449d | 1923 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1924 | frame, regnum, fpregs); |
f9418c0f AC |
1925 | continue; |
1926 | } | |
1927 | } | |
1928 | ||
1929 | /* A register group? */ | |
1930 | { | |
6c7d17ba | 1931 | struct reggroup *group; |
a4bd449d | 1932 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1933 | group != NULL; |
a4bd449d | 1934 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1935 | { |
1936 | /* Don't bother with a length check. Should the user | |
1937 | enter a short register group name, go with the first | |
1938 | group that matches. */ | |
6c7d17ba | 1939 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1940 | break; |
1941 | } | |
6c7d17ba | 1942 | if (group != NULL) |
f9418c0f AC |
1943 | { |
1944 | int regnum; | |
f57d151a | 1945 | for (regnum = 0; |
a4bd449d UW |
1946 | regnum < gdbarch_num_regs (gdbarch) |
1947 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1948 | regnum++) |
f9418c0f | 1949 | { |
a4bd449d UW |
1950 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1951 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1952 | gdb_stdout, frame, |
f9418c0f AC |
1953 | regnum, fpregs); |
1954 | } | |
1955 | continue; | |
1956 | } | |
1957 | } | |
c906108c | 1958 | |
f9418c0f | 1959 | /* Nothing matched. */ |
8a3fe4f8 | 1960 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 1961 | } |
c906108c SS |
1962 | } |
1963 | ||
1964 | void | |
fba45db2 | 1965 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1966 | { |
1967 | registers_info (addr_exp, 1); | |
1968 | } | |
1969 | ||
a58dd373 | 1970 | static void |
fba45db2 | 1971 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1972 | { |
1973 | registers_info (addr_exp, 0); | |
1974 | } | |
e76f1f2e AC |
1975 | |
1976 | static void | |
1977 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
1978 | struct frame_info *frame, const char *args) | |
1979 | { | |
1980 | if (gdbarch_print_vector_info_p (gdbarch)) | |
1981 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
1982 | else | |
1983 | { | |
1984 | int regnum; | |
1985 | int printed_something = 0; | |
ab4327e0 | 1986 | |
f57d151a | 1987 | for (regnum = 0; |
a4bd449d UW |
1988 | regnum < gdbarch_num_regs (gdbarch) |
1989 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1990 | regnum++) |
e76f1f2e | 1991 | { |
f9418c0f | 1992 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
1993 | { |
1994 | printed_something = 1; | |
e76f1f2e | 1995 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
1996 | } |
1997 | } | |
1998 | if (!printed_something) | |
1999 | fprintf_filtered (file, "No vector information\n"); | |
2000 | } | |
2001 | } | |
2002 | ||
2003 | static void | |
2004 | vector_info (char *args, int from_tty) | |
2005 | { | |
206415a3 DJ |
2006 | if (!target_has_registers) |
2007 | error (_("The program has no registers now.")); | |
2008 | ||
2009 | print_vector_info (current_gdbarch, gdb_stdout, | |
2010 | get_selected_frame (NULL), args); | |
e76f1f2e | 2011 | } |
c906108c | 2012 | \f |
c5aa993b | 2013 | |
c906108c SS |
2014 | /* |
2015 | * TODO: | |
2016 | * Should save/restore the tty state since it might be that the | |
2017 | * program to be debugged was started on this tty and it wants | |
2018 | * the tty in some state other than what we want. If it's running | |
2019 | * on another terminal or without a terminal, then saving and | |
2020 | * restoring the tty state is a harmless no-op. | |
2021 | * This only needs to be done if we are attaching to a process. | |
2022 | */ | |
2023 | ||
2024 | /* | |
2025 | attach_command -- | |
2026 | takes a program started up outside of gdb and ``attaches'' to it. | |
2027 | This stops it cold in its tracks and allows us to start debugging it. | |
2028 | and wait for the trace-trap that results from attaching. */ | |
2029 | ||
9356cf8d PA |
2030 | static void |
2031 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2032 | { | |
2033 | char *exec_file; | |
2034 | char *full_exec_path = NULL; | |
d6b48e9c | 2035 | struct inferior *inferior; |
9356cf8d | 2036 | |
d6b48e9c PA |
2037 | inferior = current_inferior (); |
2038 | inferior->stop_soon = NO_STOP_QUIETLY; | |
9356cf8d PA |
2039 | |
2040 | /* If no exec file is yet known, try to determine it from the | |
2041 | process itself. */ | |
2042 | exec_file = (char *) get_exec_file (0); | |
2043 | if (!exec_file) | |
2044 | { | |
2045 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2046 | if (exec_file) | |
2047 | { | |
2048 | /* It's possible we don't have a full path, but rather just a | |
2049 | filename. Some targets, such as HP-UX, don't provide the | |
2050 | full path, sigh. | |
2051 | ||
2052 | Attempt to qualify the filename against the source path. | |
2053 | (If that fails, we'll just fall back on the original | |
2054 | filename. Not much more we can do...) | |
2055 | */ | |
2056 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
2057 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
2058 | ||
2059 | exec_file_attach (full_exec_path, from_tty); | |
2060 | symbol_file_add_main (full_exec_path, from_tty); | |
2061 | } | |
2062 | } | |
2063 | else | |
2064 | { | |
2065 | reopen_exec_file (); | |
2066 | reread_symbols (); | |
2067 | } | |
2068 | ||
2069 | /* Take any necessary post-attaching actions for this platform. */ | |
2070 | target_post_attach (PIDGET (inferior_ptid)); | |
2071 | ||
2072 | post_create_inferior (¤t_target, from_tty); | |
2073 | ||
2074 | /* Install inferior's terminal modes. */ | |
2075 | target_terminal_inferior (); | |
2076 | ||
2077 | if (async_exec) | |
2078 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
2079 | else | |
2080 | { | |
2081 | if (target_can_async_p ()) | |
2082 | async_enable_stdin (); | |
2083 | normal_stop (); | |
2084 | if (deprecated_attach_hook) | |
2085 | deprecated_attach_hook (); | |
2086 | } | |
2087 | } | |
2088 | ||
bfec99b2 | 2089 | struct attach_command_continuation_args |
9356cf8d PA |
2090 | { |
2091 | char *args; | |
2092 | int from_tty; | |
2093 | int async_exec; | |
bfec99b2 | 2094 | }; |
9356cf8d | 2095 | |
bfec99b2 | 2096 | static void |
604ead4a | 2097 | attach_command_continuation (void *args) |
bfec99b2 PA |
2098 | { |
2099 | struct attach_command_continuation_args *a = args; | |
2100 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); | |
9356cf8d PA |
2101 | } |
2102 | ||
604ead4a PA |
2103 | static void |
2104 | attach_command_continuation_free_args (void *args) | |
2105 | { | |
2106 | struct attach_command_continuation_args *a = args; | |
2107 | xfree (a->args); | |
2108 | xfree (a); | |
2109 | } | |
2110 | ||
c906108c | 2111 | void |
fba45db2 | 2112 | attach_command (char *args, int from_tty) |
c906108c | 2113 | { |
c5aa993b JM |
2114 | char *exec_file; |
2115 | char *full_exec_path = NULL; | |
9356cf8d | 2116 | int async_exec = 0; |
c906108c | 2117 | |
c5aa993b | 2118 | dont_repeat (); /* Not for the faint of heart */ |
c906108c SS |
2119 | |
2120 | if (target_has_execution) | |
2121 | { | |
2122 | if (query ("A program is being debugged already. Kill it? ")) | |
2123 | target_kill (); | |
2124 | else | |
8a3fe4f8 | 2125 | error (_("Not killed.")); |
c906108c SS |
2126 | } |
2127 | ||
fd79ecee DJ |
2128 | /* Clean up any leftovers from other runs. Some other things from |
2129 | this function should probably be moved into target_pre_inferior. */ | |
2130 | target_pre_inferior (from_tty); | |
2131 | ||
9908b566 VP |
2132 | if (non_stop && !target_supports_non_stop ()) |
2133 | error (_("Cannot attach to this target in non-stop mode")); | |
2134 | ||
9356cf8d PA |
2135 | if (args) |
2136 | { | |
2137 | async_exec = strip_bg_char (&args); | |
2138 | ||
2139 | /* If we get a request for running in the bg but the target | |
2140 | doesn't support it, error out. */ | |
2141 | if (async_exec && !target_can_async_p ()) | |
2142 | error (_("Asynchronous execution not supported on this target.")); | |
2143 | } | |
2144 | ||
2145 | /* If we don't get a request of running in the bg, then we need | |
2146 | to simulate synchronous (fg) execution. */ | |
2147 | if (!async_exec && target_can_async_p ()) | |
2148 | { | |
2149 | /* Simulate synchronous execution */ | |
2150 | async_disable_stdin (); | |
2151 | } | |
2152 | ||
c906108c SS |
2153 | target_attach (args, from_tty); |
2154 | ||
2155 | /* Set up the "saved terminal modes" of the inferior | |
2156 | based on what modes we are starting it with. */ | |
2157 | target_terminal_init (); | |
2158 | ||
c906108c SS |
2159 | /* Set up execution context to know that we should return from |
2160 | wait_for_inferior as soon as the target reports a stop. */ | |
2161 | init_wait_for_inferior (); | |
2162 | clear_proceed_status (); | |
c906108c | 2163 | |
dc177b7a PA |
2164 | /* Some system don't generate traps when attaching to inferior. |
2165 | E.g. Mach 3 or GNU hurd. */ | |
2166 | if (!target_attach_no_wait) | |
c5aa993b | 2167 | { |
d6b48e9c PA |
2168 | struct inferior *inferior = current_inferior (); |
2169 | ||
dc177b7a PA |
2170 | /* Careful here. See comments in inferior.h. Basically some |
2171 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2172 | need a way for handle_inferior_event to reset the stop_signal | |
2173 | variable after an attach, and this is what | |
2174 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
d6b48e9c | 2175 | inferior->stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2176 | |
dc177b7a PA |
2177 | if (target_can_async_p ()) |
2178 | { | |
2179 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2180 | struct attach_command_continuation_args *a; |
2181 | ||
2182 | a = xmalloc (sizeof (*a)); | |
2183 | a->args = xstrdup (args); | |
2184 | a->from_tty = from_tty; | |
2185 | a->async_exec = async_exec; | |
95e54da7 PA |
2186 | add_continuation (inferior_thread (), |
2187 | attach_command_continuation, a, | |
604ead4a | 2188 | attach_command_continuation_free_args); |
dc177b7a PA |
2189 | return; |
2190 | } | |
c906108c | 2191 | |
dc177b7a PA |
2192 | wait_for_inferior (0); |
2193 | } | |
6426a772 | 2194 | |
9356cf8d | 2195 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2196 | } |
2197 | ||
2198 | /* | |
2199 | * detach_command -- | |
2200 | * takes a program previously attached to and detaches it. | |
2201 | * The program resumes execution and will no longer stop | |
2202 | * on signals, etc. We better not have left any breakpoints | |
2203 | * in the program or it'll die when it hits one. For this | |
2204 | * to work, it may be necessary for the process to have been | |
2205 | * previously attached. It *might* work if the program was | |
2206 | * started via the normal ptrace (PTRACE_TRACEME). | |
2207 | */ | |
2208 | ||
2209 | static void | |
fba45db2 | 2210 | detach_command (char *args, int from_tty) |
c906108c | 2211 | { |
1f5d0fc9 | 2212 | dont_repeat (); /* Not for the faint of heart. */ |
c906108c | 2213 | target_detach (args, from_tty); |
e85a822c | 2214 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2215 | init_thread_list (); |
9a4105ab AC |
2216 | if (deprecated_detach_hook) |
2217 | deprecated_detach_hook (); | |
c906108c SS |
2218 | } |
2219 | ||
6ad8ae5c DJ |
2220 | /* Disconnect from the current target without resuming it (leaving it |
2221 | waiting for a debugger). | |
2222 | ||
2223 | We'd better not have left any breakpoints in the program or the | |
2224 | next debugger will get confused. Currently only supported for some | |
2225 | remote targets, since the normal attach mechanisms don't work on | |
2226 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2227 | ||
2228 | static void | |
2229 | disconnect_command (char *args, int from_tty) | |
2230 | { | |
2231 | dont_repeat (); /* Not for the faint of heart */ | |
2232 | target_disconnect (args, from_tty); | |
e85a822c | 2233 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2234 | init_thread_list (); |
9a4105ab AC |
2235 | if (deprecated_detach_hook) |
2236 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2237 | } |
2238 | ||
77ebaa5a VP |
2239 | void |
2240 | interrupt_target_1 (int all_threads) | |
2241 | { | |
2242 | ptid_t ptid; | |
2243 | if (all_threads) | |
2244 | ptid = minus_one_ptid; | |
2245 | else | |
2246 | ptid = inferior_ptid; | |
2247 | target_stop (ptid); | |
2248 | } | |
2249 | ||
43ff13b4 | 2250 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2251 | the backgound. In all-stop, stop the whole process. In non-stop |
2252 | mode, stop the current thread only by default, or stop all threads | |
2253 | if the `-a' switch is used. */ | |
2254 | ||
2255 | /* interrupt [-a] */ | |
8b93c638 | 2256 | void |
fba45db2 | 2257 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2258 | { |
362646f5 | 2259 | if (target_can_async_p ()) |
43ff13b4 | 2260 | { |
8cae4b3f PA |
2261 | int all_threads = 0; |
2262 | ||
c5aa993b | 2263 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2264 | |
8cae4b3f PA |
2265 | if (args != NULL |
2266 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2267 | all_threads = 1; | |
2268 | ||
2269 | if (!non_stop && all_threads) | |
2270 | error (_("-a is meaningless in all-stop mode.")); | |
2271 | ||
77ebaa5a | 2272 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2273 | } |
2274 | } | |
2275 | ||
c906108c | 2276 | static void |
23e3a7ac AC |
2277 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2278 | struct frame_info *frame, const char *args) | |
c906108c | 2279 | { |
23e3a7ac AC |
2280 | if (gdbarch_print_float_info_p (gdbarch)) |
2281 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2282 | else | |
2283 | { | |
23e3a7ac AC |
2284 | int regnum; |
2285 | int printed_something = 0; | |
ab4327e0 | 2286 | |
f57d151a | 2287 | for (regnum = 0; |
a4bd449d UW |
2288 | regnum < gdbarch_num_regs (gdbarch) |
2289 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2290 | regnum++) |
23e3a7ac | 2291 | { |
f9418c0f | 2292 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2293 | { |
2294 | printed_something = 1; | |
23e3a7ac | 2295 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2296 | } |
2297 | } | |
2298 | if (!printed_something) | |
2299 | fprintf_filtered (file, "\ | |
2300 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2301 | } |
2302 | } | |
2303 | ||
2304 | static void | |
2305 | float_info (char *args, int from_tty) | |
2306 | { | |
206415a3 DJ |
2307 | if (!target_has_registers) |
2308 | error (_("The program has no registers now.")); | |
2309 | ||
1f5d0fc9 | 2310 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2311 | get_selected_frame (NULL), args); |
c906108c SS |
2312 | } |
2313 | \f | |
c906108c | 2314 | static void |
fba45db2 | 2315 | unset_command (char *args, int from_tty) |
c906108c | 2316 | { |
a3f17187 AC |
2317 | printf_filtered (_("\ |
2318 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2319 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2320 | } | |
2321 | ||
2322 | void | |
fba45db2 | 2323 | _initialize_infcmd (void) |
c906108c | 2324 | { |
3cb3b8df BR |
2325 | struct cmd_list_element *c = NULL; |
2326 | ||
2327 | /* add the filename of the terminal connected to inferior I/O */ | |
2328 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2329 | &inferior_io_terminal, _("\ | |
2330 | Set terminal for future runs of program being debugged."), _("\ | |
2331 | Show terminal for future runs of program being debugged."), _("\ | |
2332 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2333 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2334 | |
b4b4ac0b AC |
2335 | add_setshow_optional_filename_cmd ("args", class_run, |
2336 | &inferior_args, _("\ | |
2337 | Set argument list to give program being debugged when it is started."), _("\ | |
2338 | Show argument list to give program being debugged when it is started."), _("\ | |
2339 | Follow this command with any number of args, to be passed to the program."), | |
2340 | notice_args_set, | |
2341 | notice_args_read, | |
2342 | &setlist, &showlist); | |
c906108c | 2343 | |
1a966eab AC |
2344 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2345 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2346 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2347 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2348 | environment to be given to the program."), &showlist); |
5ba2abeb | 2349 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2350 | |
2351 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2352 | _("Complement to certain \"set\" commands."), |
c906108c | 2353 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2354 | |
1a966eab AC |
2355 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2356 | Cancel environment variable VAR for the program.\n\ | |
2357 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2358 | &unsetlist); |
5ba2abeb | 2359 | set_cmd_completer (c, noop_completer); |
c906108c | 2360 | |
1a966eab AC |
2361 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2362 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2363 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2364 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2365 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2366 | &setlist); |
5ba2abeb | 2367 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2368 | |
1bedd215 AC |
2369 | c = add_com ("path", class_files, path_command, _("\ |
2370 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2371 | $cwd in the path means the current working directory.\n\ |
2372 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2373 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2374 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2375 | set_cmd_completer (c, filename_completer); |
c906108c | 2376 | |
1a966eab AC |
2377 | c = add_cmd ("paths", no_class, path_info, _("\ |
2378 | Current search path for finding object files.\n\ | |
c906108c SS |
2379 | $cwd in the path means the current working directory.\n\ |
2380 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2381 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2382 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2383 | &showlist); |
5ba2abeb | 2384 | set_cmd_completer (c, noop_completer); |
c906108c | 2385 | |
1bedd215 AC |
2386 | add_com ("attach", class_run, attach_command, _("\ |
2387 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2388 | This command attaches to another target, of the same type as your last\n\ |
2389 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2390 | The command may take as argument a process id or a device file.\n\ | |
2391 | For a process id, you must have permission to send the process a signal,\n\ | |
2392 | and it must have the same effective uid as the debugger.\n\ | |
2393 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2394 | program running in the process, looking first in the current working\n\ | |
2395 | directory, or (if not found there) using the source file search path\n\ | |
2396 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2397 | to specify the program, and to load its symbol table.")); |
c906108c | 2398 | |
f73adfeb | 2399 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2400 | Detach a process or file previously attached.\n\ |
c906108c | 2401 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2402 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2403 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2404 | |
1bedd215 AC |
2405 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2406 | Disconnect from a target.\n\ | |
6ad8ae5c | 2407 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2408 | all targets.")); |
6ad8ae5c | 2409 | |
1bedd215 AC |
2410 | add_com ("signal", class_run, signal_command, _("\ |
2411 | Continue program giving it signal specified by the argument.\n\ | |
2412 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2413 | |
1bedd215 AC |
2414 | add_com ("stepi", class_run, stepi_command, _("\ |
2415 | Step one instruction exactly.\n\ | |
2416 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2417 | add_com_alias ("si", "stepi", class_alias, 0); |
2418 | ||
1bedd215 AC |
2419 | add_com ("nexti", class_run, nexti_command, _("\ |
2420 | Step one instruction, but proceed through subroutine calls.\n\ | |
2421 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2422 | add_com_alias ("ni", "nexti", class_alias, 0); |
2423 | ||
1bedd215 AC |
2424 | add_com ("finish", class_run, finish_command, _("\ |
2425 | Execute until selected stack frame returns.\n\ | |
2426 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2427 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2428 | |
1bedd215 AC |
2429 | add_com ("next", class_run, next_command, _("\ |
2430 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2431 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2432 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2433 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2434 | add_com_alias ("n", "next", class_run, 1); |
2435 | if (xdb_commands) | |
c5aa993b | 2436 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2437 | |
1bedd215 AC |
2438 | add_com ("step", class_run, step_command, _("\ |
2439 | Step program until it reaches a different source line.\n\ | |
2440 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2441 | add_com_alias ("s", "step", class_run, 1); |
2442 | ||
1bedd215 AC |
2443 | c = add_com ("until", class_run, until_command, _("\ |
2444 | Execute until the program reaches a source line greater than the current\n\ | |
2445 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2446 | set_cmd_completer (c, location_completer); |
c906108c | 2447 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2448 | |
1bedd215 AC |
2449 | c = add_com ("advance", class_run, advance_command, _("\ |
2450 | Continue the program up to the given location (same form as args for break command).\n\ | |
2451 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2452 | set_cmd_completer (c, location_completer); |
2453 | ||
1bedd215 AC |
2454 | c = add_com ("jump", class_run, jump_command, _("\ |
2455 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2456 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2457 | for an address to start at.")); |
5ba2abeb | 2458 | set_cmd_completer (c, location_completer); |
c906108c | 2459 | |
b83266a0 | 2460 | if (xdb_commands) |
c94fdfd0 | 2461 | { |
1bedd215 AC |
2462 | c = add_com ("go", class_run, go_command, _("\ |
2463 | Usage: go <location>\n\ | |
c906108c SS |
2464 | Continue program being debugged, stopping at specified line or \n\ |
2465 | address.\n\ | |
2466 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2467 | expression for an address to start at.\n\ | |
1bedd215 | 2468 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2469 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2470 | } |
b83266a0 | 2471 | |
c906108c | 2472 | if (xdb_commands) |
c5aa993b | 2473 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2474 | |
8cae4b3f | 2475 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2476 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2477 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2478 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2479 | the breakpoint won't break until the Nth time it is reached).\n\ |
2480 | \n\ | |
2481 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2482 | otherwise all the threads in the program are continued. To \n\ | |
2483 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2484 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2485 | add_com_alias ("c", "cont", class_run, 1); |
2486 | add_com_alias ("fg", "cont", class_run, 1); | |
2487 | ||
1bedd215 AC |
2488 | c = add_com ("run", class_run, run_command, _("\ |
2489 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2490 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2491 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2492 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2493 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2494 | use \"set args\" without arguments.")); |
5ba2abeb | 2495 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2496 | add_com_alias ("r", "run", class_run, 1); |
2497 | if (xdb_commands) | |
2498 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2499 | _("Start debugged program with no arguments.")); |
c906108c | 2500 | |
1bedd215 | 2501 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2502 | Run the debugged program until the beginning of the main procedure.\n\ |
2503 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2504 | \"run\" command.")); |
a4d5f2e0 JB |
2505 | set_cmd_completer (c, filename_completer); |
2506 | ||
700b53b1 | 2507 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2508 | _("Interrupt the execution of the debugged program.\n\ |
2509 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2510 | otherwise all the threads in the program are stopped. To \n\ | |
2511 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2512 | |
1bedd215 AC |
2513 | add_info ("registers", nofp_registers_info, _("\ |
2514 | List of integer registers and their contents, for selected stack frame.\n\ | |
2515 | Register name as argument means describe only that register.")); | |
7194c49b | 2516 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2517 | |
2518 | if (xdb_commands) | |
1bedd215 AC |
2519 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2520 | List of integer registers and their contents, for selected stack frame.\n\ | |
2521 | Register name as argument means describe only that register.")); | |
2522 | add_info ("all-registers", all_registers_info, _("\ | |
2523 | List of all registers and their contents, for selected stack frame.\n\ | |
2524 | Register name as argument means describe only that register.")); | |
c906108c SS |
2525 | |
2526 | add_info ("program", program_info, | |
1bedd215 | 2527 | _("Execution status of the program.")); |
c906108c SS |
2528 | |
2529 | add_info ("float", float_info, | |
1bedd215 | 2530 | _("Print the status of the floating point unit\n")); |
c906108c | 2531 | |
e76f1f2e | 2532 | add_info ("vector", vector_info, |
1bedd215 | 2533 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2534 | |
c906108c SS |
2535 | inferior_environ = make_environ (); |
2536 | init_environ (inferior_environ); | |
2537 | } |