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" |
79a45b7d | 54 | #include "valprint.h" |
72cec141 | 55 | |
a58dd373 | 56 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 57 | |
a14ed312 | 58 | void all_registers_info (char *, int); |
c906108c | 59 | |
a14ed312 | 60 | void registers_info (char *, int); |
c906108c | 61 | |
a58dd373 EZ |
62 | void nexti_command (char *, int); |
63 | ||
64 | void stepi_command (char *, int); | |
c906108c | 65 | |
a14ed312 | 66 | void continue_command (char *, int); |
c906108c | 67 | |
a58dd373 EZ |
68 | void interrupt_target_command (char *args, int from_tty); |
69 | ||
70 | /* Local functions: */ | |
71 | ||
72 | static void nofp_registers_info (char *, int); | |
73 | ||
c055b101 CV |
74 | static void print_return_value (struct type *func_type, |
75 | struct type *value_type); | |
11cf8741 | 76 | |
a14ed312 | 77 | static void until_next_command (int); |
c906108c | 78 | |
a14ed312 | 79 | static void until_command (char *, int); |
c906108c | 80 | |
a14ed312 | 81 | static void path_info (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void path_command (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void unset_command (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void float_info (char *, int); |
c906108c | 88 | |
6ad8ae5c DJ |
89 | static void disconnect_command (char *, int); |
90 | ||
a14ed312 | 91 | static void unset_environment_command (char *, int); |
c906108c | 92 | |
a14ed312 | 93 | static void set_environment_command (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void environment_info (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void program_info (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void finish_command (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void signal_command (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void jump_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void step_1 (int, int, char *); |
611c83ae | 106 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
c906108c | 107 | |
a14ed312 | 108 | static void next_command (char *, int); |
c906108c | 109 | |
a14ed312 | 110 | static void step_command (char *, int); |
c906108c | 111 | |
a14ed312 | 112 | static void run_command (char *, int); |
c906108c | 113 | |
a14ed312 | 114 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 115 | |
a14ed312 | 116 | static void go_command (char *line_no, int from_tty); |
392a587b | 117 | |
a14ed312 | 118 | static int strip_bg_char (char **); |
43ff13b4 | 119 | |
a14ed312 | 120 | void _initialize_infcmd (void); |
c906108c | 121 | |
c906108c | 122 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 123 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
124 | |
125 | /* String containing arguments to give to the program, separated by spaces. | |
126 | Empty string (pointer to '\0') means no args. */ | |
127 | ||
128 | static char *inferior_args; | |
129 | ||
552c04a7 TT |
130 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
131 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
132 | ||
133 | static int inferior_argc; | |
134 | static char **inferior_argv; | |
135 | ||
c906108c SS |
136 | /* File name for default use for standard in/out in the inferior. */ |
137 | ||
3cb3b8df | 138 | static char *inferior_io_terminal; |
c906108c SS |
139 | |
140 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
141 | Since various parts of infrun.c test this to see whether there is a program | |
142 | being debugged it should be nonzero (currently 3 is used) for remote | |
143 | debugging. */ | |
144 | ||
39f77062 | 145 | ptid_t inferior_ptid; |
c906108c | 146 | |
c906108c SS |
147 | /* Address at which inferior stopped. */ |
148 | ||
149 | CORE_ADDR stop_pc; | |
150 | ||
c906108c SS |
151 | /* Flag indicating that a command has proceeded the inferior past the |
152 | current breakpoint. */ | |
153 | ||
154 | int breakpoint_proceeded; | |
155 | ||
c906108c SS |
156 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
157 | ||
158 | int stop_stack_dummy; | |
159 | ||
160 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
161 | process. */ | |
162 | ||
163 | int stopped_by_random_signal; | |
164 | ||
c906108c SS |
165 | /* Environment to use for running inferior, |
166 | in format described in environ.h. */ | |
167 | ||
1bf1958d | 168 | struct gdb_environ *inferior_environ; |
f5871ec0 | 169 | |
8f6a8e84 VP |
170 | /* When set, no calls to target_resumed observer will be made. */ |
171 | int suppress_resume_observer = 0; | |
172 | /* When set, normal_stop will not call the normal_stop observer. */ | |
173 | int suppress_stop_observer = 0; | |
c906108c | 174 | \f |
07091751 FN |
175 | /* Accessor routines. */ |
176 | ||
3cb3b8df BR |
177 | void |
178 | set_inferior_io_terminal (const char *terminal_name) | |
179 | { | |
180 | if (inferior_io_terminal) | |
181 | xfree (inferior_io_terminal); | |
182 | ||
183 | if (!terminal_name) | |
184 | inferior_io_terminal = NULL; | |
185 | else | |
186 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
187 | } | |
188 | ||
189 | const char * | |
190 | get_inferior_io_terminal (void) | |
191 | { | |
192 | return inferior_io_terminal; | |
193 | } | |
194 | ||
07091751 FN |
195 | char * |
196 | get_inferior_args (void) | |
197 | { | |
552c04a7 TT |
198 | if (inferior_argc != 0) |
199 | { | |
200 | char *n, *old; | |
201 | ||
202 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
203 | inferior_argc, inferior_argv); | |
204 | old = set_inferior_args (n); | |
205 | xfree (old); | |
206 | } | |
207 | ||
208 | if (inferior_args == NULL) | |
209 | inferior_args = xstrdup (""); | |
210 | ||
07091751 FN |
211 | return inferior_args; |
212 | } | |
213 | ||
214 | char * | |
215 | set_inferior_args (char *newargs) | |
216 | { | |
217 | char *saved_args = inferior_args; | |
218 | ||
219 | inferior_args = newargs; | |
552c04a7 TT |
220 | inferior_argc = 0; |
221 | inferior_argv = 0; | |
07091751 FN |
222 | |
223 | return saved_args; | |
224 | } | |
c5aa993b | 225 | |
552c04a7 TT |
226 | void |
227 | set_inferior_args_vector (int argc, char **argv) | |
228 | { | |
229 | inferior_argc = argc; | |
230 | inferior_argv = argv; | |
231 | } | |
232 | ||
233 | /* Notice when `set args' is run. */ | |
234 | static void | |
235 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
236 | { | |
237 | inferior_argc = 0; | |
238 | inferior_argv = 0; | |
239 | } | |
240 | ||
241 | /* Notice when `show args' is run. */ | |
242 | static void | |
b4b4ac0b AC |
243 | notice_args_read (struct ui_file *file, int from_tty, |
244 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 245 | { |
258c00cc TT |
246 | /* Note that we ignore the passed-in value in favor of computing it |
247 | directly. */ | |
248 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
249 | } |
250 | ||
c2a727fa TT |
251 | \f |
252 | /* Compute command-line string given argument vector. This does the | |
253 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
254 | char * |
255 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
256 | { | |
257 | char *result; | |
258 | ||
259 | if (STARTUP_WITH_SHELL) | |
260 | { | |
261 | /* This holds all the characters considered special to the | |
262 | typical Unix shells. We include `^' because the SunOS | |
263 | /bin/sh treats it as a synonym for `|'. */ | |
264 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
265 | int i; | |
266 | int length = 0; | |
267 | char *out, *cp; | |
268 | ||
269 | /* We over-compute the size. It shouldn't matter. */ | |
270 | for (i = 0; i < argc; ++i) | |
c2226152 | 271 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
272 | |
273 | result = (char *) xmalloc (length); | |
274 | out = result; | |
275 | ||
276 | for (i = 0; i < argc; ++i) | |
277 | { | |
278 | if (i > 0) | |
279 | *out++ = ' '; | |
280 | ||
03c6228e AS |
281 | /* Need to handle empty arguments specially. */ |
282 | if (argv[i][0] == '\0') | |
c2a727fa | 283 | { |
03c6228e AS |
284 | *out++ = '\''; |
285 | *out++ = '\''; | |
286 | } | |
287 | else | |
288 | { | |
289 | for (cp = argv[i]; *cp; ++cp) | |
290 | { | |
c2226152 AS |
291 | if (*cp == '\n') |
292 | { | |
293 | /* A newline cannot be quoted with a backslash (it | |
294 | just disappears), only by putting it inside | |
295 | quotes. */ | |
296 | *out++ = '\''; | |
297 | *out++ = '\n'; | |
298 | *out++ = '\''; | |
299 | } | |
300 | else | |
301 | { | |
302 | if (strchr (special, *cp) != NULL) | |
303 | *out++ = '\\'; | |
304 | *out++ = *cp; | |
305 | } | |
03c6228e | 306 | } |
c2a727fa TT |
307 | } |
308 | } | |
309 | *out = '\0'; | |
310 | } | |
311 | else | |
312 | { | |
313 | /* In this case we can't handle arguments that contain spaces, | |
314 | tabs, or newlines -- see breakup_args(). */ | |
315 | int i; | |
316 | int length = 0; | |
317 | ||
318 | for (i = 0; i < argc; ++i) | |
319 | { | |
320 | char *cp = strchr (argv[i], ' '); | |
321 | if (cp == NULL) | |
322 | cp = strchr (argv[i], '\t'); | |
323 | if (cp == NULL) | |
324 | cp = strchr (argv[i], '\n'); | |
325 | if (cp != NULL) | |
8a3fe4f8 | 326 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
327 | length += strlen (argv[i]) + 1; |
328 | } | |
329 | ||
330 | result = (char *) xmalloc (length); | |
331 | result[0] = '\0'; | |
332 | for (i = 0; i < argc; ++i) | |
333 | { | |
334 | if (i > 0) | |
335 | strcat (result, " "); | |
336 | strcat (result, argv[i]); | |
337 | } | |
338 | } | |
339 | ||
340 | return result; | |
341 | } | |
552c04a7 TT |
342 | \f |
343 | ||
43ff13b4 JM |
344 | /* This function detects whether or not a '&' character (indicating |
345 | background execution) has been added as *the last* of the arguments ARGS | |
346 | of a command. If it has, it removes it and returns 1. Otherwise it | |
347 | does nothing and returns 0. */ | |
c5aa993b | 348 | static int |
fba45db2 | 349 | strip_bg_char (char **args) |
43ff13b4 JM |
350 | { |
351 | char *p = NULL; | |
c5aa993b | 352 | |
9846de1b | 353 | p = strchr (*args, '&'); |
c5aa993b | 354 | |
9846de1b | 355 | if (p) |
43ff13b4 JM |
356 | { |
357 | if (p == (*args + strlen (*args) - 1)) | |
358 | { | |
c5aa993b | 359 | if (strlen (*args) > 1) |
43ff13b4 JM |
360 | { |
361 | do | |
362 | p--; | |
363 | while (*p == ' ' || *p == '\t'); | |
364 | *(p + 1) = '\0'; | |
365 | } | |
366 | else | |
367 | *args = 0; | |
368 | return 1; | |
369 | } | |
370 | } | |
371 | return 0; | |
372 | } | |
373 | ||
c906108c | 374 | void |
fba45db2 | 375 | tty_command (char *file, int from_tty) |
c906108c SS |
376 | { |
377 | if (file == 0) | |
e2e0b3e5 | 378 | error_no_arg (_("terminal name for running target process")); |
c906108c | 379 | |
3cb3b8df | 380 | set_inferior_io_terminal (file); |
c906108c SS |
381 | } |
382 | ||
281b533b DJ |
383 | /* Common actions to take after creating any sort of inferior, by any |
384 | means (running, attaching, connecting, et cetera). The target | |
385 | should be stopped. */ | |
386 | ||
387 | void | |
388 | post_create_inferior (struct target_ops *target, int from_tty) | |
389 | { | |
b79599ff DP |
390 | /* Be sure we own the terminal in case write operations are performed. */ |
391 | target_terminal_ours (); | |
392 | ||
424163ea DJ |
393 | /* If the target hasn't taken care of this already, do it now. |
394 | Targets which need to access registers during to_open, | |
395 | to_create_inferior, or to_attach should do it earlier; but many | |
396 | don't need to. */ | |
397 | target_find_description (); | |
398 | ||
50c71eaf PA |
399 | /* If the solist is global across processes, there's no need to |
400 | refetch it here. */ | |
401 | if (exec_bfd && !gdbarch_has_global_solist (target_gdbarch)) | |
9353355f DJ |
402 | { |
403 | /* Sometimes the platform-specific hook loads initial shared | |
404 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
405 | that we can add them with the correct value for FROM_TTY. |
406 | If we made all the inferior hook methods consistent, | |
407 | this call could be removed. */ | |
9353355f DJ |
408 | #ifdef SOLIB_ADD |
409 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
410 | #else | |
411 | solib_add (NULL, from_tty, target, auto_solib_add); | |
412 | #endif | |
50c71eaf | 413 | } |
9353355f | 414 | |
50c71eaf PA |
415 | if (exec_bfd) |
416 | { | |
9353355f DJ |
417 | /* Create the hooks to handle shared library load and unload |
418 | events. */ | |
419 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 420 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
421 | #else |
422 | solib_create_inferior_hook (); | |
423 | #endif | |
9353355f DJ |
424 | } |
425 | ||
281b533b DJ |
426 | observer_notify_inferior_created (target, from_tty); |
427 | } | |
428 | ||
a4d5f2e0 JB |
429 | /* Kill the inferior if already running. This function is designed |
430 | to be called when we are about to start the execution of the program | |
431 | from the beginning. Ask the user to confirm that he wants to restart | |
432 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 433 | |
8edfe269 | 434 | static void |
a4d5f2e0 JB |
435 | kill_if_already_running (int from_tty) |
436 | { | |
39f77062 | 437 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 438 | { |
8edfe269 DJ |
439 | /* Bail out before killing the program if we will not be able to |
440 | restart it. */ | |
441 | target_require_runnable (); | |
442 | ||
adf40b2e JM |
443 | if (from_tty |
444 | && !query ("The program being debugged has been started already.\n\ | |
c906108c | 445 | Start it from the beginning? ")) |
8a3fe4f8 | 446 | error (_("Program not restarted.")); |
c906108c | 447 | target_kill (); |
c906108c | 448 | } |
a4d5f2e0 JB |
449 | } |
450 | ||
f67a969f JB |
451 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
452 | a temporary breakpoint at the begining of the main program before | |
453 | running the program. */ | |
454 | ||
a4d5f2e0 | 455 | static void |
f67a969f | 456 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
457 | { |
458 | char *exec_file; | |
c906108c | 459 | |
a4d5f2e0 JB |
460 | dont_repeat (); |
461 | ||
462 | kill_if_already_running (from_tty); | |
3c35e65b UW |
463 | |
464 | init_wait_for_inferior (); | |
c906108c SS |
465 | clear_breakpoint_hit_counts (); |
466 | ||
fd79ecee DJ |
467 | /* Clean up any leftovers from other runs. Some other things from |
468 | this function should probably be moved into target_pre_inferior. */ | |
469 | target_pre_inferior (from_tty); | |
470 | ||
39ad761d JB |
471 | /* The comment here used to read, "The exec file is re-read every |
472 | time we do a generic_mourn_inferior, so we just have to worry | |
473 | about the symbol file." The `generic_mourn_inferior' function | |
474 | gets called whenever the program exits. However, suppose the | |
475 | program exits, and *then* the executable file changes? We need | |
476 | to check again here. Since reopen_exec_file doesn't do anything | |
477 | if the timestamp hasn't changed, I don't see the harm. */ | |
478 | reopen_exec_file (); | |
c906108c SS |
479 | reread_symbols (); |
480 | ||
f67a969f JB |
481 | /* Insert the temporary breakpoint if a location was specified. */ |
482 | if (tbreak_at_main) | |
483 | tbreak_command (main_name (), 0); | |
484 | ||
39ad761d JB |
485 | exec_file = (char *) get_exec_file (0); |
486 | ||
9908b566 VP |
487 | if (non_stop && !target_supports_non_stop ()) |
488 | error (_("The target does not support running in non-stop mode.")); | |
489 | ||
c906108c SS |
490 | /* We keep symbols from add-symbol-file, on the grounds that the |
491 | user might want to add some symbols before running the program | |
492 | (right?). But sometimes (dynamic loading where the user manually | |
493 | introduces the new symbols with add-symbol-file), the code which | |
494 | the symbols describe does not persist between runs. Currently | |
495 | the user has to manually nuke all symbols between runs if they | |
496 | want them to go away (PR 2207). This is probably reasonable. */ | |
497 | ||
43ff13b4 | 498 | if (!args) |
6426a772 | 499 | { |
362646f5 | 500 | if (target_can_async_p ()) |
6426a772 JM |
501 | async_disable_stdin (); |
502 | } | |
43ff13b4 | 503 | else |
c906108c | 504 | { |
43ff13b4 JM |
505 | int async_exec = strip_bg_char (&args); |
506 | ||
507 | /* If we get a request for running in the bg but the target | |
508 | doesn't support it, error out. */ | |
362646f5 | 509 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 510 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
511 | |
512 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 513 | to simulate synchronous (fg) execution. */ |
362646f5 | 514 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
515 | { |
516 | /* Simulate synchronous execution */ | |
6426a772 | 517 | async_disable_stdin (); |
43ff13b4 JM |
518 | } |
519 | ||
520 | /* If there were other args, beside '&', process them. */ | |
521 | if (args) | |
522 | { | |
07091751 FN |
523 | char *old_args = set_inferior_args (xstrdup (args)); |
524 | xfree (old_args); | |
43ff13b4 | 525 | } |
c906108c SS |
526 | } |
527 | ||
528 | if (from_tty) | |
529 | { | |
8b93c638 JM |
530 | ui_out_field_string (uiout, NULL, "Starting program"); |
531 | ui_out_text (uiout, ": "); | |
532 | if (exec_file) | |
533 | ui_out_field_string (uiout, "execfile", exec_file); | |
534 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
535 | /* We call get_inferior_args() because we might need to compute |
536 | the value now. */ | |
537 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
538 | ui_out_text (uiout, "\n"); |
539 | ui_out_flush (uiout); | |
c906108c SS |
540 | } |
541 | ||
552c04a7 TT |
542 | /* We call get_inferior_args() because we might need to compute |
543 | the value now. */ | |
544 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 545 | environ_vector (inferior_environ), from_tty); |
281b533b | 546 | |
de1b3c3d PA |
547 | /* Pass zero for FROM_TTY, because at this point the "run" command |
548 | has done its thing; now we are setting up the running program. */ | |
549 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
550 | |
551 | /* Start the target running. */ | |
552 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c SS |
553 | } |
554 | ||
555 | ||
f67a969f JB |
556 | static void |
557 | run_command (char *args, int from_tty) | |
558 | { | |
559 | run_command_1 (args, from_tty, 0); | |
560 | } | |
561 | ||
c906108c | 562 | static void |
fba45db2 | 563 | run_no_args_command (char *args, int from_tty) |
c906108c | 564 | { |
07091751 FN |
565 | char *old_args = set_inferior_args (xstrdup ("")); |
566 | xfree (old_args); | |
c906108c | 567 | } |
c906108c | 568 | \f |
c5aa993b | 569 | |
a4d5f2e0 JB |
570 | /* Start the execution of the program up until the beginning of the main |
571 | program. */ | |
572 | ||
573 | static void | |
574 | start_command (char *args, int from_tty) | |
575 | { | |
576 | /* Some languages such as Ada need to search inside the program | |
577 | minimal symbols for the location where to put the temporary | |
578 | breakpoint before starting. */ | |
579 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 580 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 581 | |
f67a969f JB |
582 | /* Run the program until reaching the main procedure... */ |
583 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
584 | } |
585 | ||
8cae4b3f PA |
586 | static int |
587 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
588 | { | |
74531fed PA |
589 | /* We go through all threads individually instead of compressing |
590 | into a single target `resume_all' request, because some threads | |
591 | may be stopped in internal breakpoints/events, or stopped waiting | |
592 | for its turn in the displaced stepping queue (that is, they are | |
593 | running && !executing). The target side has no idea about why | |
594 | the thread is stopped, so a `resume_all' command would resume too | |
595 | much. If/when GDB gains a way to tell the target `hold this | |
596 | thread stopped until I say otherwise', then we can optimize | |
597 | this. */ | |
4f8d22e3 | 598 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
599 | return 0; |
600 | ||
dcf4fbde | 601 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
602 | clear_proceed_status (); |
603 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
604 | return 0; | |
605 | } | |
606 | ||
77ebaa5a VP |
607 | void |
608 | continue_1 (int all_threads) | |
609 | { | |
3d488bfc PA |
610 | ERROR_NO_INFERIOR; |
611 | ||
77ebaa5a VP |
612 | if (non_stop && all_threads) |
613 | { | |
614 | /* Don't error out if the current thread is running, because | |
615 | there may be other stopped threads. */ | |
616 | struct cleanup *old_chain; | |
617 | ||
618 | /* Backup current thread and selected frame. */ | |
619 | old_chain = make_cleanup_restore_current_thread (); | |
620 | ||
621 | iterate_over_threads (proceed_thread_callback, NULL); | |
622 | ||
623 | /* Restore selected ptid. */ | |
624 | do_cleanups (old_chain); | |
625 | } | |
626 | else | |
627 | { | |
628 | ensure_not_running (); | |
629 | clear_proceed_status (); | |
630 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
631 | } | |
632 | } | |
633 | ||
8cae4b3f | 634 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 635 | void |
8cae4b3f | 636 | continue_command (char *args, int from_tty) |
c906108c | 637 | { |
c5aa993b | 638 | int async_exec = 0; |
8cae4b3f | 639 | int all_threads = 0; |
c906108c SS |
640 | ERROR_NO_INFERIOR; |
641 | ||
43ff13b4 | 642 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
643 | if (args != NULL) |
644 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
645 | |
646 | /* If we must run in the background, but the target can't do it, | |
647 | error out. */ | |
362646f5 | 648 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 649 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
650 | |
651 | /* If we are not asked to run in the bg, then prepare to run in the | |
652 | foreground, synchronously. */ | |
362646f5 | 653 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 654 | { |
43ff13b4 | 655 | /* Simulate synchronous execution */ |
6426a772 | 656 | async_disable_stdin (); |
43ff13b4 | 657 | } |
c906108c | 658 | |
8cae4b3f PA |
659 | if (args != NULL) |
660 | { | |
661 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
662 | { | |
663 | all_threads = 1; | |
664 | args += sizeof ("-a") - 1; | |
665 | if (*args == '\0') | |
666 | args = NULL; | |
667 | } | |
668 | } | |
669 | ||
670 | if (!non_stop && all_threads) | |
671 | error (_("`-a' is meaningless in all-stop mode.")); | |
672 | ||
673 | if (args != NULL && all_threads) | |
674 | error (_("\ | |
675 | Can't resume all threads and specify proceed count simultaneously.")); | |
676 | ||
677 | /* If we have an argument left, set proceed count of breakpoint we | |
678 | stopped at. */ | |
679 | if (args != NULL) | |
c906108c | 680 | { |
347bddb7 | 681 | bpstat bs = NULL; |
8671a17b PA |
682 | int num, stat; |
683 | int stopped = 0; | |
347bddb7 PA |
684 | struct thread_info *tp; |
685 | ||
686 | if (non_stop) | |
687 | tp = find_thread_pid (inferior_ptid); | |
688 | else | |
689 | { | |
690 | ptid_t last_ptid; | |
691 | struct target_waitstatus ws; | |
692 | ||
693 | get_last_target_status (&last_ptid, &ws); | |
694 | tp = find_thread_pid (last_ptid); | |
695 | } | |
696 | if (tp != NULL) | |
697 | bs = tp->stop_bpstat; | |
8671a17b PA |
698 | |
699 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
700 | if (stat > 0) | |
701 | { | |
702 | set_ignore_count (num, | |
8cae4b3f | 703 | parse_and_eval_long (args) - 1, |
8671a17b PA |
704 | from_tty); |
705 | /* set_ignore_count prints a message ending with a period. | |
706 | So print two spaces before "Continuing.". */ | |
707 | if (from_tty) | |
708 | printf_filtered (" "); | |
709 | stopped = 1; | |
710 | } | |
711 | ||
712 | if (!stopped && from_tty) | |
c906108c SS |
713 | { |
714 | printf_filtered | |
715 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
716 | } | |
c906108c SS |
717 | } |
718 | ||
719 | if (from_tty) | |
a3f17187 | 720 | printf_filtered (_("Continuing.\n")); |
c906108c | 721 | |
77ebaa5a | 722 | continue_1 (all_threads); |
c906108c SS |
723 | } |
724 | \f | |
725 | /* Step until outside of current statement. */ | |
726 | ||
c906108c | 727 | static void |
fba45db2 | 728 | step_command (char *count_string, int from_tty) |
c906108c SS |
729 | { |
730 | step_1 (0, 0, count_string); | |
731 | } | |
732 | ||
733 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
734 | ||
c906108c | 735 | static void |
fba45db2 | 736 | next_command (char *count_string, int from_tty) |
c906108c SS |
737 | { |
738 | step_1 (1, 0, count_string); | |
739 | } | |
740 | ||
741 | /* Likewise, but step only one instruction. */ | |
742 | ||
c906108c | 743 | void |
fba45db2 | 744 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
745 | { |
746 | step_1 (0, 1, count_string); | |
747 | } | |
748 | ||
c906108c | 749 | void |
fba45db2 | 750 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
751 | { |
752 | step_1 (1, 1, count_string); | |
753 | } | |
754 | ||
74b7792f | 755 | static void |
611c83ae | 756 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 757 | { |
611c83ae PA |
758 | int thread = * (int *) arg; |
759 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
760 | } |
761 | ||
c906108c | 762 | static void |
fba45db2 | 763 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 764 | { |
52f0bd74 | 765 | int count = 1; |
c906108c | 766 | struct frame_info *frame; |
f107f563 | 767 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 768 | int async_exec = 0; |
b3dc826b | 769 | int thread = -1; |
c5aa993b | 770 | |
c906108c | 771 | ERROR_NO_INFERIOR; |
94cc34af | 772 | ensure_not_running (); |
43ff13b4 JM |
773 | |
774 | if (count_string) | |
775 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 776 | |
43ff13b4 JM |
777 | /* If we get a request for running in the bg but the target |
778 | doesn't support it, error out. */ | |
362646f5 | 779 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 780 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
781 | |
782 | /* If we don't get a request of running in the bg, then we need | |
783 | to simulate synchronous (fg) execution. */ | |
362646f5 | 784 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
785 | { |
786 | /* Simulate synchronous execution */ | |
6426a772 | 787 | async_disable_stdin (); |
43ff13b4 JM |
788 | } |
789 | ||
bb518678 | 790 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 791 | |
c5aa993b | 792 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 793 | { |
611c83ae | 794 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 795 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
796 | |
797 | set_longjmp_breakpoint (); | |
798 | ||
b3dc826b | 799 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
800 | } |
801 | ||
802 | /* In synchronous case, all is well, just use the regular for loop. */ | |
362646f5 | 803 | if (!target_can_async_p ()) |
c2d11a7d JM |
804 | { |
805 | for (; count > 0; count--) | |
806 | { | |
4e1c45ea | 807 | struct thread_info *tp = inferior_thread (); |
c2d11a7d JM |
808 | clear_proceed_status (); |
809 | ||
810 | frame = get_current_frame (); | |
4e1c45ea | 811 | tp->step_frame_id = get_frame_id (frame); |
c2d11a7d JM |
812 | |
813 | if (!single_inst) | |
814 | { | |
4e1c45ea PA |
815 | find_pc_line_pc_range (stop_pc, |
816 | &tp->step_range_start, &tp->step_range_end); | |
817 | if (tp->step_range_end == 0) | |
c2d11a7d JM |
818 | { |
819 | char *name; | |
4e1c45ea PA |
820 | if (find_pc_partial_function (stop_pc, &name, |
821 | &tp->step_range_start, | |
822 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 823 | error (_("Cannot find bounds of current function")); |
c2d11a7d JM |
824 | |
825 | target_terminal_ours (); | |
a3f17187 | 826 | printf_filtered (_("\ |
c2d11a7d | 827 | Single stepping until exit from function %s, \n\ |
a3f17187 | 828 | which has no line number information.\n"), name); |
c2d11a7d JM |
829 | } |
830 | } | |
831 | else | |
832 | { | |
833 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 834 | tp->step_range_start = tp->step_range_end = 1; |
c2d11a7d JM |
835 | if (!skip_subroutines) |
836 | /* It is stepi. | |
837 | Don't step over function calls, not even to functions lacking | |
838 | line numbers. */ | |
078130d0 | 839 | tp->step_over_calls = STEP_OVER_NONE; |
c2d11a7d JM |
840 | } |
841 | ||
842 | if (skip_subroutines) | |
078130d0 | 843 | tp->step_over_calls = STEP_OVER_ALL; |
c2d11a7d | 844 | |
af679fd0 | 845 | tp->step_multi = (count > 1); |
c2d11a7d JM |
846 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
847 | ||
414c69f7 PA |
848 | if (!target_has_execution |
849 | || !inferior_thread ()->stop_step) | |
c2d11a7d | 850 | break; |
c2d11a7d JM |
851 | } |
852 | ||
f107f563 | 853 | do_cleanups (cleanups); |
c2d11a7d JM |
854 | return; |
855 | } | |
856 | /* In case of asynchronous target things get complicated, do only | |
857 | one step for now, before returning control to the event loop. Let | |
858 | the continuation figure out how many other steps we need to do, | |
859 | and handle them one at the time, through step_once(). */ | |
860 | else | |
861 | { | |
b3dc826b | 862 | step_once (skip_subroutines, single_inst, count, thread); |
611c83ae | 863 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
864 | disable the longjmp breakpoint as appropriate. */ |
865 | discard_cleanups (cleanups); | |
c906108c | 866 | } |
c2d11a7d | 867 | } |
c906108c | 868 | |
bfec99b2 PA |
869 | struct step_1_continuation_args |
870 | { | |
871 | int count; | |
872 | int skip_subroutines; | |
873 | int single_inst; | |
874 | int thread; | |
875 | }; | |
876 | ||
c2d11a7d JM |
877 | /* Called after we are done with one step operation, to check whether |
878 | we need to step again, before we print the prompt and return control | |
879 | to the user. If count is > 1, we will need to do one more call to | |
880 | proceed(), via step_once(). Basically it is like step_once and | |
881 | step_1_continuation are co-recursive. */ | |
882 | static void | |
604ead4a | 883 | step_1_continuation (void *args) |
c2d11a7d | 884 | { |
bfec99b2 | 885 | struct step_1_continuation_args *a = args; |
f13468d9 | 886 | |
af679fd0 | 887 | if (target_has_execution) |
f13468d9 | 888 | { |
af679fd0 PA |
889 | struct thread_info *tp; |
890 | ||
891 | tp = inferior_thread (); | |
414c69f7 | 892 | if (tp->step_multi && tp->stop_step) |
af679fd0 PA |
893 | { |
894 | /* There are more steps to make, and we did stop due to | |
895 | ending a stepping range. Do another step. */ | |
896 | step_once (a->skip_subroutines, a->single_inst, a->count - 1, a->thread); | |
897 | return; | |
898 | } | |
899 | tp->step_multi = 0; | |
f107f563 | 900 | } |
af679fd0 PA |
901 | |
902 | /* We either stopped for some reason that is not stepping, or there | |
903 | are no further steps to make. Cleanup. */ | |
904 | if (!a->single_inst || a->skip_subroutines) | |
905 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
906 | } |
907 | ||
908 | /* Do just one step operation. If count >1 we will have to set up a | |
909 | continuation to be done after the target stops (after this one | |
910 | step). This is useful to implement the 'step n' kind of commands, in | |
911 | case of asynchronous targets. We had to split step_1 into two parts, | |
912 | one to be done before proceed() and one afterwards. This function is | |
913 | called in case of step n with n>1, after the first step operation has | |
914 | been completed.*/ | |
915 | static void | |
611c83ae | 916 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 917 | { |
0d06e24b | 918 | struct frame_info *frame; |
bfec99b2 | 919 | struct step_1_continuation_args *args; |
c2d11a7d JM |
920 | |
921 | if (count > 0) | |
c906108c | 922 | { |
4e1c45ea PA |
923 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
924 | the longjmp breakpoint was not required. Use the | |
925 | INFERIOR_PTID thread instead, which is the same thread when | |
926 | THREAD is set. */ | |
927 | struct thread_info *tp = inferior_thread (); | |
c906108c SS |
928 | clear_proceed_status (); |
929 | ||
930 | frame = get_current_frame (); | |
c5aa993b | 931 | if (!frame) /* Avoid coredump here. Why tho? */ |
8a3fe4f8 | 932 | error (_("No current frame")); |
4e1c45ea | 933 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 934 | |
c5aa993b | 935 | if (!single_inst) |
c906108c | 936 | { |
4e1c45ea PA |
937 | find_pc_line_pc_range (stop_pc, |
938 | &tp->step_range_start, &tp->step_range_end); | |
5fbbeb29 CF |
939 | |
940 | /* If we have no line info, switch to stepi mode. */ | |
4e1c45ea | 941 | if (tp->step_range_end == 0 && step_stop_if_no_debug) |
5fbbeb29 | 942 | { |
4e1c45ea | 943 | tp->step_range_start = tp->step_range_end = 1; |
5fbbeb29 | 944 | } |
4e1c45ea | 945 | else if (tp->step_range_end == 0) |
c906108c SS |
946 | { |
947 | char *name; | |
4e1c45ea PA |
948 | if (find_pc_partial_function (stop_pc, &name, |
949 | &tp->step_range_start, | |
950 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 951 | error (_("Cannot find bounds of current function")); |
c906108c SS |
952 | |
953 | target_terminal_ours (); | |
a3f17187 | 954 | printf_filtered (_("\ |
c906108c | 955 | Single stepping until exit from function %s, \n\ |
a3f17187 | 956 | which has no line number information.\n"), name); |
c906108c SS |
957 | } |
958 | } | |
959 | else | |
960 | { | |
961 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 962 | tp->step_range_start = tp->step_range_end = 1; |
c906108c SS |
963 | if (!skip_subroutines) |
964 | /* It is stepi. | |
965 | Don't step over function calls, not even to functions lacking | |
966 | line numbers. */ | |
078130d0 | 967 | tp->step_over_calls = STEP_OVER_NONE; |
c906108c SS |
968 | } |
969 | ||
970 | if (skip_subroutines) | |
078130d0 | 971 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c | 972 | |
95e54da7 | 973 | tp->step_multi = (count > 1); |
f107f563 | 974 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 PA |
975 | |
976 | args = xmalloc (sizeof (*args)); | |
977 | args->skip_subroutines = skip_subroutines; | |
978 | args->single_inst = single_inst; | |
979 | args->count = count; | |
980 | args->thread = thread; | |
95e54da7 | 981 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); |
c906108c | 982 | } |
c906108c | 983 | } |
c2d11a7d | 984 | |
c906108c SS |
985 | \f |
986 | /* Continue program at specified address. */ | |
987 | ||
988 | static void | |
fba45db2 | 989 | jump_command (char *arg, int from_tty) |
c906108c | 990 | { |
52f0bd74 | 991 | CORE_ADDR addr; |
c906108c SS |
992 | struct symtabs_and_lines sals; |
993 | struct symtab_and_line sal; | |
994 | struct symbol *fn; | |
995 | struct symbol *sfn; | |
43ff13b4 | 996 | int async_exec = 0; |
c5aa993b | 997 | |
c906108c | 998 | ERROR_NO_INFERIOR; |
94cc34af | 999 | ensure_not_running (); |
c906108c | 1000 | |
43ff13b4 JM |
1001 | /* Find out whether we must run in the background. */ |
1002 | if (arg != NULL) | |
1003 | async_exec = strip_bg_char (&arg); | |
1004 | ||
1005 | /* If we must run in the background, but the target can't do it, | |
1006 | error out. */ | |
362646f5 | 1007 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1008 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1009 | |
c906108c | 1010 | if (!arg) |
e2e0b3e5 | 1011 | error_no_arg (_("starting address")); |
c906108c SS |
1012 | |
1013 | sals = decode_line_spec_1 (arg, 1); | |
1014 | if (sals.nelts != 1) | |
1015 | { | |
8a3fe4f8 | 1016 | error (_("Unreasonable jump request")); |
c906108c SS |
1017 | } |
1018 | ||
1019 | sal = sals.sals[0]; | |
b8c9b27d | 1020 | xfree (sals.sals); |
c906108c SS |
1021 | |
1022 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1023 | error (_("No source file has been specified.")); |
c906108c | 1024 | |
c5aa993b | 1025 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1026 | |
1027 | /* See if we are trying to jump to another function. */ | |
1028 | fn = get_frame_function (get_current_frame ()); | |
1029 | sfn = find_pc_function (sal.pc); | |
1030 | if (fn != NULL && sfn != fn) | |
1031 | { | |
1032 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, | |
de5ad195 | 1033 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1034 | { |
8a3fe4f8 | 1035 | error (_("Not confirmed.")); |
c906108c SS |
1036 | /* NOTREACHED */ |
1037 | } | |
1038 | } | |
1039 | ||
c5aa993b | 1040 | if (sfn != NULL) |
c906108c SS |
1041 | { |
1042 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1043 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1044 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c SS |
1045 | { |
1046 | if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")) | |
1047 | { | |
8a3fe4f8 | 1048 | error (_("Not confirmed.")); |
c906108c SS |
1049 | /* NOTREACHED */ |
1050 | } | |
1051 | } | |
1052 | } | |
1053 | ||
c906108c SS |
1054 | addr = sal.pc; |
1055 | ||
1056 | if (from_tty) | |
1057 | { | |
a3f17187 | 1058 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1059 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1060 | printf_filtered (".\n"); |
1061 | } | |
1062 | ||
89113898 PA |
1063 | /* If we are not asked to run in the bg, then prepare to run in the |
1064 | foreground, synchronously. */ | |
1065 | if (!async_exec && target_can_async_p ()) | |
1066 | { | |
1067 | /* Simulate synchronous execution */ | |
1068 | async_disable_stdin (); | |
1069 | } | |
1070 | ||
c906108c SS |
1071 | clear_proceed_status (); |
1072 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1073 | } | |
c906108c | 1074 | \f |
c5aa993b | 1075 | |
c906108c SS |
1076 | /* Go to line or address in current procedure */ |
1077 | static void | |
fba45db2 | 1078 | go_command (char *line_no, int from_tty) |
c906108c | 1079 | { |
c5aa993b | 1080 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1081 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1082 | else |
1083 | { | |
b83266a0 SS |
1084 | tbreak_command (line_no, from_tty); |
1085 | jump_command (line_no, from_tty); | |
c906108c SS |
1086 | } |
1087 | } | |
c906108c | 1088 | \f |
c5aa993b | 1089 | |
c906108c SS |
1090 | /* Continue program giving it specified signal. */ |
1091 | ||
1092 | static void | |
fba45db2 | 1093 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1094 | { |
1095 | enum target_signal oursig; | |
32c1e744 | 1096 | int async_exec = 0; |
c906108c SS |
1097 | |
1098 | dont_repeat (); /* Too dangerous. */ | |
1099 | ERROR_NO_INFERIOR; | |
94cc34af | 1100 | ensure_not_running (); |
c906108c | 1101 | |
32c1e744 VP |
1102 | /* Find out whether we must run in the background. */ |
1103 | if (signum_exp != NULL) | |
1104 | async_exec = strip_bg_char (&signum_exp); | |
1105 | ||
1106 | /* If we must run in the background, but the target can't do it, | |
1107 | error out. */ | |
1108 | if (async_exec && !target_can_async_p ()) | |
1109 | error (_("Asynchronous execution not supported on this target.")); | |
1110 | ||
1111 | /* If we are not asked to run in the bg, then prepare to run in the | |
1112 | foreground, synchronously. */ | |
1113 | if (!async_exec && target_can_async_p ()) | |
1114 | { | |
1115 | /* Simulate synchronous execution. */ | |
1116 | async_disable_stdin (); | |
1117 | } | |
1118 | ||
c906108c | 1119 | if (!signum_exp) |
e2e0b3e5 | 1120 | error_no_arg (_("signal number")); |
c906108c SS |
1121 | |
1122 | /* It would be even slicker to make signal names be valid expressions, | |
1123 | (the type could be "enum $signal" or some such), then the user could | |
1124 | assign them to convenience variables. */ | |
1125 | oursig = target_signal_from_name (signum_exp); | |
1126 | ||
1127 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1128 | { | |
1129 | /* No, try numeric. */ | |
bb518678 | 1130 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1131 | |
1132 | if (num == 0) | |
1133 | oursig = TARGET_SIGNAL_0; | |
1134 | else | |
1135 | oursig = target_signal_from_command (num); | |
1136 | } | |
1137 | ||
1138 | if (from_tty) | |
1139 | { | |
1140 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1141 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1142 | else |
a3f17187 | 1143 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1144 | target_signal_to_name (oursig)); |
1145 | } | |
1146 | ||
1147 | clear_proceed_status (); | |
1148 | /* "signal 0" should not get stuck if we are stopped at a breakpoint. | |
1149 | FIXME: Neither should "signal foo" but when I tried passing | |
1150 | (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't | |
1151 | tried to track down yet. */ | |
2acceee2 | 1152 | proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0); |
c906108c SS |
1153 | } |
1154 | ||
c906108c SS |
1155 | /* Proceed until we reach a different source line with pc greater than |
1156 | our current one or exit the function. We skip calls in both cases. | |
1157 | ||
1158 | Note that eventually this command should probably be changed so | |
1159 | that only source lines are printed out when we hit the breakpoint | |
1160 | we set. This may involve changes to wait_for_inferior and the | |
1161 | proceed status code. */ | |
1162 | ||
c906108c | 1163 | static void |
fba45db2 | 1164 | until_next_command (int from_tty) |
c906108c SS |
1165 | { |
1166 | struct frame_info *frame; | |
1167 | CORE_ADDR pc; | |
1168 | struct symbol *func; | |
1169 | struct symtab_and_line sal; | |
4e1c45ea | 1170 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1171 | |
c906108c SS |
1172 | clear_proceed_status (); |
1173 | ||
1174 | frame = get_current_frame (); | |
1175 | ||
1176 | /* Step until either exited from this function or greater | |
1177 | than the current line (if in symbolic section) or pc (if | |
1178 | not). */ | |
1179 | ||
1180 | pc = read_pc (); | |
1181 | func = find_pc_function (pc); | |
c5aa993b | 1182 | |
c906108c SS |
1183 | if (!func) |
1184 | { | |
1185 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1186 | |
c906108c | 1187 | if (msymbol == NULL) |
8a3fe4f8 | 1188 | error (_("Execution is not within a known function.")); |
c5aa993b | 1189 | |
4e1c45ea PA |
1190 | tp->step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1191 | tp->step_range_end = pc; | |
c906108c SS |
1192 | } |
1193 | else | |
1194 | { | |
1195 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1196 | |
4e1c45ea PA |
1197 | tp->step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1198 | tp->step_range_end = sal.end; | |
c906108c | 1199 | } |
c5aa993b | 1200 | |
078130d0 | 1201 | tp->step_over_calls = STEP_OVER_ALL; |
4e1c45ea | 1202 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 1203 | |
af679fd0 | 1204 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1205 | |
2acceee2 | 1206 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1207 | } |
1208 | ||
c5aa993b | 1209 | static void |
fba45db2 | 1210 | until_command (char *arg, int from_tty) |
c906108c | 1211 | { |
43ff13b4 JM |
1212 | int async_exec = 0; |
1213 | ||
c906108c | 1214 | if (!target_has_execution) |
8a3fe4f8 | 1215 | error (_("The program is not running.")); |
43ff13b4 JM |
1216 | |
1217 | /* Find out whether we must run in the background. */ | |
1218 | if (arg != NULL) | |
1219 | async_exec = strip_bg_char (&arg); | |
1220 | ||
1221 | /* If we must run in the background, but the target can't do it, | |
1222 | error out. */ | |
362646f5 | 1223 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1224 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1225 | |
1226 | /* If we are not asked to run in the bg, then prepare to run in the | |
1227 | foreground, synchronously. */ | |
362646f5 | 1228 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1229 | { |
43ff13b4 | 1230 | /* Simulate synchronous execution */ |
6426a772 | 1231 | async_disable_stdin (); |
43ff13b4 JM |
1232 | } |
1233 | ||
c906108c | 1234 | if (arg) |
ae66c1fc | 1235 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1236 | else |
1237 | until_next_command (from_tty); | |
1238 | } | |
ae66c1fc EZ |
1239 | |
1240 | static void | |
1241 | advance_command (char *arg, int from_tty) | |
1242 | { | |
1243 | int async_exec = 0; | |
1244 | ||
1245 | if (!target_has_execution) | |
8a3fe4f8 | 1246 | error (_("The program is not running.")); |
ae66c1fc EZ |
1247 | |
1248 | if (arg == NULL) | |
e2e0b3e5 | 1249 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1250 | |
1251 | /* Find out whether we must run in the background. */ | |
1252 | if (arg != NULL) | |
1253 | async_exec = strip_bg_char (&arg); | |
1254 | ||
1255 | /* If we must run in the background, but the target can't do it, | |
1256 | error out. */ | |
362646f5 | 1257 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1258 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1259 | |
1260 | /* If we are not asked to run in the bg, then prepare to run in the | |
1261 | foreground, synchronously. */ | |
362646f5 | 1262 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1263 | { |
1264 | /* Simulate synchronous execution. */ | |
1265 | async_disable_stdin (); | |
1266 | } | |
1267 | ||
1268 | until_break_command (arg, from_tty, 1); | |
1269 | } | |
c906108c | 1270 | \f |
f941662f MK |
1271 | /* Print the result of a function at the end of a 'finish' command. */ |
1272 | ||
11cf8741 | 1273 | static void |
c055b101 | 1274 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1275 | { |
31db7b6c | 1276 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1277 | struct cleanup *old_chain; |
1278 | struct ui_stream *stb; | |
44e5158b AC |
1279 | struct value *value; |
1280 | ||
181fc57c | 1281 | CHECK_TYPEDEF (value_type); |
44e5158b | 1282 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1283 | |
92ad9cd9 AC |
1284 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1285 | call, it's possible (with no help from the architecture vector) | |
1286 | to locate and return/print a "struct return" value. This is just | |
1287 | a more complicated case of what is already being done in in the | |
1288 | inferior function call code. In fact, when inferior function | |
1289 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1290 | |
c055b101 CV |
1291 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1292 | NULL, NULL, NULL)) | |
44e5158b | 1293 | { |
750eb019 AC |
1294 | case RETURN_VALUE_REGISTER_CONVENTION: |
1295 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1296 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1297 | value = allocate_value (value_type); |
c055b101 | 1298 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1299 | value_contents_raw (value), NULL); |
750eb019 AC |
1300 | break; |
1301 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1302 | value = NULL; | |
1303 | break; | |
1304 | default: | |
e2e0b3e5 | 1305 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1306 | } |
bb472c1e | 1307 | |
31db7b6c MK |
1308 | if (value) |
1309 | { | |
79a45b7d TT |
1310 | struct value_print_options opts; |
1311 | ||
31db7b6c | 1312 | /* Print it. */ |
1d751abe PA |
1313 | stb = ui_out_stream_new (uiout); |
1314 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1315 | ui_out_text (uiout, "Value returned is "); |
1316 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1317 | record_latest_value (value)); | |
1318 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1319 | get_raw_print_options (&opts); |
1320 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1321 | ui_out_field_stream (uiout, "return-value", stb); |
1322 | ui_out_text (uiout, "\n"); | |
1d751abe | 1323 | do_cleanups (old_chain); |
31db7b6c MK |
1324 | } |
1325 | else | |
1326 | { | |
1327 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1328 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1329 | ui_out_text (uiout, "."); | |
1330 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1331 | } |
11cf8741 JM |
1332 | } |
1333 | ||
43ff13b4 | 1334 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1335 | has stopped. In asynchronous mode, we wait for the target to stop |
1336 | in the call to poll or select in the event loop, so it is | |
1337 | impossible to do all the stuff as part of the finish_command | |
1338 | function itself. The only chance we have to complete this command | |
1339 | is in fetch_inferior_event, which is called by the event loop as | |
1340 | soon as it detects that the target has stopped. This function is | |
1341 | called via the cmd_continuation pointer. */ | |
1342 | ||
bfec99b2 | 1343 | struct finish_command_continuation_args |
43ff13b4 | 1344 | { |
43ff13b4 | 1345 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1346 | struct symbol *function; |
1347 | }; | |
c5aa993b | 1348 | |
bfec99b2 | 1349 | static void |
604ead4a | 1350 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1351 | { |
1352 | struct finish_command_continuation_args *a = arg; | |
43ff13b4 | 1353 | |
347bddb7 PA |
1354 | bpstat bs = NULL; |
1355 | ||
1356 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1357 | && target_has_execution | |
1358 | && is_stopped (inferior_ptid)) | |
1359 | bs = inferior_thread ()->stop_bpstat; | |
1360 | ||
1361 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1362 | && a->function != NULL) |
43ff13b4 | 1363 | { |
604ead4a | 1364 | struct type *value_type; |
bfec99b2 | 1365 | |
604ead4a PA |
1366 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1367 | if (!value_type) | |
1368 | internal_error (__FILE__, __LINE__, | |
1369 | _("finish_command: function has no target type")); | |
f5871ec0 | 1370 | |
604ead4a PA |
1371 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
1372 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
43ff13b4 | 1373 | } |
f941662f | 1374 | |
604ead4a PA |
1375 | /* We suppress normal call of normal_stop observer and do it here so |
1376 | that that *stopped notification includes the return value. */ | |
1377 | /* NOTE: This is broken in non-stop mode. There is no guarantee the | |
1378 | next stop will be in the same thread that we started doing a | |
1379 | finish on. This suppressing (or some other replacement means) | |
1380 | should be a thread property. */ | |
347bddb7 | 1381 | observer_notify_normal_stop (bs); |
8f6a8e84 | 1382 | suppress_stop_observer = 0; |
bfec99b2 | 1383 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1384 | } |
1385 | ||
604ead4a PA |
1386 | static void |
1387 | finish_command_continuation_free_arg (void *arg) | |
1388 | { | |
1389 | /* NOTE: See finish_command_continuation. This would go away, if | |
1390 | this suppressing is made a thread property. */ | |
1391 | suppress_stop_observer = 0; | |
1392 | xfree (arg); | |
1393 | } | |
1394 | ||
b2175913 MS |
1395 | /* finish_backward -- helper function for finish_command. */ |
1396 | ||
1397 | static void | |
1398 | finish_backward (struct symbol *function) | |
1399 | { | |
1400 | struct symtab_and_line sal; | |
1401 | struct thread_info *tp = inferior_thread (); | |
1402 | struct breakpoint *breakpoint; | |
1403 | struct cleanup *old_chain; | |
1404 | CORE_ADDR func_addr; | |
1405 | int back_up; | |
1406 | ||
1407 | if (find_pc_partial_function (get_frame_pc (get_current_frame ()), | |
1408 | NULL, &func_addr, NULL) == 0) | |
1409 | internal_error (__FILE__, __LINE__, | |
1410 | _("Finish: couldn't find function.")); | |
1411 | ||
1412 | sal = find_pc_line (func_addr, 0); | |
1413 | ||
1414 | /* We don't need a return value. */ | |
1415 | tp->proceed_to_finish = 0; | |
1416 | /* Special case: if we're sitting at the function entry point, | |
1417 | then all we need to do is take a reverse singlestep. We | |
1418 | don't need to set a breakpoint, and indeed it would do us | |
1419 | no good to do so. | |
1420 | ||
1421 | Note that this can only happen at frame #0, since there's | |
1422 | no way that a function up the stack can have a return address | |
1423 | that's equal to its entry point. */ | |
1424 | ||
1425 | if (sal.pc != read_pc ()) | |
1426 | { | |
1427 | /* Set breakpoint and continue. */ | |
1428 | breakpoint = | |
1429 | set_momentary_breakpoint (sal, | |
1430 | get_frame_id (get_selected_frame (NULL)), | |
1431 | bp_breakpoint); | |
1432 | /* Tell the breakpoint to keep quiet. We won't be done | |
1433 | until we've done another reverse single-step. */ | |
1434 | make_breakpoint_silent (breakpoint); | |
1435 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1436 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1437 | /* We will be stopped when proceed returns. */ | |
1438 | back_up = bpstat_find_breakpoint (tp->stop_bpstat, breakpoint) != NULL; | |
1439 | do_cleanups (old_chain); | |
1440 | } | |
1441 | else | |
1442 | back_up = 1; | |
1443 | if (back_up) | |
1444 | { | |
1445 | /* If in fact we hit the step-resume breakpoint (and not | |
1446 | some other breakpoint), then we're almost there -- | |
1447 | we just need to back up by one more single-step. */ | |
1448 | tp->step_range_start = tp->step_range_end = 1; | |
1449 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1450 | } | |
1451 | return; | |
1452 | } | |
1453 | ||
1454 | /* finish_forward -- helper function for finish_command. */ | |
1455 | ||
1456 | static void | |
1457 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1458 | { | |
1459 | struct symtab_and_line sal; | |
1460 | struct thread_info *tp = inferior_thread (); | |
1461 | struct breakpoint *breakpoint; | |
1462 | struct cleanup *old_chain; | |
1463 | struct finish_command_continuation_args *cargs; | |
1464 | ||
1465 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1466 | sal.pc = get_frame_pc (frame); | |
1467 | ||
1468 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), | |
1469 | bp_finish); | |
1470 | ||
1471 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1472 | ||
1473 | tp->proceed_to_finish = 1; /* We want stop_registers, please... */ | |
1474 | make_cleanup_restore_integer (&suppress_stop_observer); | |
1475 | suppress_stop_observer = 1; | |
1476 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1477 | ||
1478 | cargs = xmalloc (sizeof (*cargs)); | |
1479 | ||
1480 | cargs->breakpoint = breakpoint; | |
1481 | cargs->function = function; | |
1482 | add_continuation (tp, finish_command_continuation, cargs, | |
1483 | finish_command_continuation_free_arg); | |
1484 | ||
1485 | discard_cleanups (old_chain); | |
1486 | if (!target_can_async_p ()) | |
1487 | do_all_continuations (); | |
1488 | } | |
1489 | ||
f941662f MK |
1490 | /* "finish": Set a temporary breakpoint at the place the selected |
1491 | frame will return to, then continue. */ | |
c906108c SS |
1492 | |
1493 | static void | |
fba45db2 | 1494 | finish_command (char *arg, int from_tty) |
c906108c | 1495 | { |
52f0bd74 AC |
1496 | struct frame_info *frame; |
1497 | struct symbol *function; | |
43ff13b4 JM |
1498 | |
1499 | int async_exec = 0; | |
1500 | ||
f941662f | 1501 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1502 | if (arg != NULL) |
1503 | async_exec = strip_bg_char (&arg); | |
1504 | ||
1505 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1506 | error out. */ |
362646f5 | 1507 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1508 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1509 | |
b2175913 MS |
1510 | /* Don't try to async in reverse. */ |
1511 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1512 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1513 | ||
43ff13b4 | 1514 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1515 | foreground, synchronously. */ |
362646f5 | 1516 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1517 | { |
f941662f | 1518 | /* Simulate synchronous execution. */ |
6426a772 | 1519 | async_disable_stdin (); |
43ff13b4 | 1520 | } |
c906108c SS |
1521 | |
1522 | if (arg) | |
8a3fe4f8 | 1523 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1524 | if (!target_has_execution) |
8a3fe4f8 | 1525 | error (_("The program is not running.")); |
c906108c | 1526 | |
206415a3 | 1527 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1528 | if (frame == 0) |
8a3fe4f8 | 1529 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1530 | |
1531 | clear_proceed_status (); | |
1532 | ||
c906108c SS |
1533 | /* Find the function we will return from. */ |
1534 | ||
206415a3 | 1535 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1536 | |
f941662f MK |
1537 | /* Print info on the selected frame, including level number but not |
1538 | source. */ | |
c906108c SS |
1539 | if (from_tty) |
1540 | { | |
b2175913 MS |
1541 | if (execution_direction == EXEC_REVERSE) |
1542 | printf_filtered (_("Run back to call of ")); | |
1543 | else | |
1544 | printf_filtered (_("Run till exit from ")); | |
1545 | ||
b04f3ab4 | 1546 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1547 | } |
1548 | ||
b2175913 MS |
1549 | if (execution_direction == EXEC_REVERSE) |
1550 | finish_backward (function); | |
1551 | else | |
1552 | finish_forward (function, frame); | |
c906108c SS |
1553 | } |
1554 | \f | |
f941662f | 1555 | |
c906108c | 1556 | static void |
fba45db2 | 1557 | program_info (char *args, int from_tty) |
c906108c | 1558 | { |
347bddb7 PA |
1559 | bpstat bs; |
1560 | int num, stat; | |
1561 | struct thread_info *tp; | |
1562 | ptid_t ptid; | |
c5aa993b | 1563 | |
c906108c SS |
1564 | if (!target_has_execution) |
1565 | { | |
a3f17187 | 1566 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1567 | return; |
1568 | } | |
1569 | ||
347bddb7 PA |
1570 | if (non_stop) |
1571 | ptid = inferior_ptid; | |
1572 | else | |
1573 | { | |
1574 | struct target_waitstatus ws; | |
1575 | get_last_target_status (&ptid, &ws); | |
1576 | } | |
1577 | ||
1578 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1579 | error (_("Invalid selected thread.")); | |
1580 | else if (is_running (ptid)) | |
1581 | error (_("Selected thread is running.")); | |
1582 | ||
1583 | tp = find_thread_pid (ptid); | |
1584 | bs = tp->stop_bpstat; | |
1585 | stat = bpstat_num (&bs, &num); | |
1586 | ||
c906108c | 1587 | target_files_info (); |
a3f17187 | 1588 | printf_filtered (_("Program stopped at %s.\n"), |
bb599908 | 1589 | hex_string ((unsigned long) stop_pc)); |
414c69f7 | 1590 | if (tp->stop_step) |
a3f17187 | 1591 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1592 | else if (stat != 0) |
c906108c SS |
1593 | { |
1594 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1595 | isn't as strange as it seems. */ |
8671a17b | 1596 | while (stat != 0) |
c906108c | 1597 | { |
8671a17b | 1598 | if (stat < 0) |
c906108c | 1599 | { |
a3f17187 AC |
1600 | printf_filtered (_("\ |
1601 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1602 | } |
1603 | else | |
a3f17187 | 1604 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1605 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1606 | } |
1607 | } | |
2020b7ab | 1608 | else if (tp->stop_signal != TARGET_SIGNAL_0) |
c906108c | 1609 | { |
a3f17187 | 1610 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2020b7ab PA |
1611 | target_signal_to_name (tp->stop_signal), |
1612 | target_signal_to_string (tp->stop_signal)); | |
c906108c SS |
1613 | } |
1614 | ||
1615 | if (!from_tty) | |
1616 | { | |
a3f17187 AC |
1617 | printf_filtered (_("\ |
1618 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1619 | } |
1620 | } | |
1621 | \f | |
1622 | static void | |
fba45db2 | 1623 | environment_info (char *var, int from_tty) |
c906108c SS |
1624 | { |
1625 | if (var) | |
1626 | { | |
aa1ee363 | 1627 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1628 | if (val) |
1629 | { | |
1630 | puts_filtered (var); | |
1631 | puts_filtered (" = "); | |
1632 | puts_filtered (val); | |
1633 | puts_filtered ("\n"); | |
1634 | } | |
1635 | else | |
1636 | { | |
1637 | puts_filtered ("Environment variable \""); | |
1638 | puts_filtered (var); | |
1639 | puts_filtered ("\" not defined.\n"); | |
1640 | } | |
1641 | } | |
1642 | else | |
1643 | { | |
aa1ee363 | 1644 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1645 | while (*vector) |
1646 | { | |
1647 | puts_filtered (*vector++); | |
1648 | puts_filtered ("\n"); | |
1649 | } | |
1650 | } | |
1651 | } | |
1652 | ||
1653 | static void | |
fba45db2 | 1654 | set_environment_command (char *arg, int from_tty) |
c906108c | 1655 | { |
52f0bd74 | 1656 | char *p, *val, *var; |
c906108c SS |
1657 | int nullset = 0; |
1658 | ||
1659 | if (arg == 0) | |
e2e0b3e5 | 1660 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1661 | |
1662 | /* Find seperation between variable name and value */ | |
1663 | p = (char *) strchr (arg, '='); | |
1664 | val = (char *) strchr (arg, ' '); | |
1665 | ||
1666 | if (p != 0 && val != 0) | |
1667 | { | |
1668 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1669 | equals, walk forward over the spaces til we see a nonspace |
1670 | (possibly the equals). */ | |
c906108c SS |
1671 | if (p > val) |
1672 | while (*val == ' ') | |
1673 | val++; | |
1674 | ||
1675 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1676 | take the char following the spaces. */ |
c906108c SS |
1677 | if (p > val) |
1678 | p = val - 1; | |
1679 | } | |
1680 | else if (val != 0 && p == 0) | |
1681 | p = val; | |
1682 | ||
1683 | if (p == arg) | |
e2e0b3e5 | 1684 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1685 | |
1686 | if (p == 0 || p[1] == 0) | |
1687 | { | |
1688 | nullset = 1; | |
1689 | if (p == 0) | |
1690 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1691 | } | |
1692 | else | |
1693 | { | |
1694 | /* Not setting variable value to null */ | |
1695 | val = p + 1; | |
1696 | while (*val == ' ' || *val == '\t') | |
1697 | val++; | |
1698 | } | |
1699 | ||
c5aa993b JM |
1700 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1701 | p--; | |
c906108c SS |
1702 | |
1703 | var = savestring (arg, p - arg); | |
1704 | if (nullset) | |
1705 | { | |
a3f17187 AC |
1706 | printf_filtered (_("\ |
1707 | Setting environment variable \"%s\" to null value.\n"), | |
1708 | var); | |
c906108c SS |
1709 | set_in_environ (inferior_environ, var, ""); |
1710 | } | |
1711 | else | |
1712 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1713 | xfree (var); |
c906108c SS |
1714 | } |
1715 | ||
1716 | static void | |
fba45db2 | 1717 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1718 | { |
1719 | if (var == 0) | |
1720 | { | |
1721 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1722 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1723 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1724 | { |
1725 | free_environ (inferior_environ); | |
1726 | inferior_environ = make_environ (); | |
1727 | } | |
1728 | } | |
1729 | else | |
1730 | unset_in_environ (inferior_environ, var); | |
1731 | } | |
1732 | ||
1733 | /* Handle the execution path (PATH variable) */ | |
1734 | ||
1735 | static const char path_var_name[] = "PATH"; | |
1736 | ||
c906108c | 1737 | static void |
fba45db2 | 1738 | path_info (char *args, int from_tty) |
c906108c SS |
1739 | { |
1740 | puts_filtered ("Executable and object file path: "); | |
1741 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1742 | puts_filtered ("\n"); | |
1743 | } | |
1744 | ||
1745 | /* Add zero or more directories to the front of the execution path. */ | |
1746 | ||
1747 | static void | |
fba45db2 | 1748 | path_command (char *dirname, int from_tty) |
c906108c SS |
1749 | { |
1750 | char *exec_path; | |
1751 | char *env; | |
1752 | dont_repeat (); | |
1753 | env = get_in_environ (inferior_environ, path_var_name); | |
1754 | /* Can be null if path is not set */ | |
1755 | if (!env) | |
1756 | env = ""; | |
4fcf66da | 1757 | exec_path = xstrdup (env); |
c906108c SS |
1758 | mod_path (dirname, &exec_path); |
1759 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1760 | xfree (exec_path); |
c906108c | 1761 | if (from_tty) |
c5aa993b | 1762 | path_info ((char *) NULL, from_tty); |
c906108c | 1763 | } |
c906108c | 1764 | \f |
c5aa993b | 1765 | |
4782dc19 | 1766 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1767 | registers (print_all == 1) or all non-float and non-vector |
1768 | registers (print_all == 0). | |
c906108c SS |
1769 | |
1770 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1771 | register(s) one per line is good enough. If a different format is |
1772 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1773 | regs), or there is an existing convention for showing all the | |
1774 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1775 | provide that format. */ | |
c906108c | 1776 | |
666e11c5 | 1777 | void |
0ab7a791 AC |
1778 | default_print_registers_info (struct gdbarch *gdbarch, |
1779 | struct ui_file *file, | |
1780 | struct frame_info *frame, | |
1781 | int regnum, int print_all) | |
c906108c | 1782 | { |
0ab7a791 | 1783 | int i; |
a4bd449d UW |
1784 | const int numregs = gdbarch_num_regs (gdbarch) |
1785 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1786 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1787 | |
c906108c SS |
1788 | for (i = 0; i < numregs; i++) |
1789 | { | |
4782dc19 AC |
1790 | /* Decide between printing all regs, non-float / vector regs, or |
1791 | specific reg. */ | |
c5aa993b JM |
1792 | if (regnum == -1) |
1793 | { | |
f9418c0f | 1794 | if (print_all) |
4782dc19 | 1795 | { |
f9418c0f | 1796 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1797 | continue; |
f9418c0f AC |
1798 | } |
1799 | else | |
1800 | { | |
1801 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1802 | continue; |
1803 | } | |
c5aa993b JM |
1804 | } |
1805 | else | |
1806 | { | |
1807 | if (i != regnum) | |
1808 | continue; | |
1809 | } | |
c906108c SS |
1810 | |
1811 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1812 | processor, so don't display anything. */ |
a4bd449d UW |
1813 | if (gdbarch_register_name (gdbarch, i) == NULL |
1814 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1815 | continue; |
1816 | ||
a4bd449d | 1817 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1818 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1819 | (gdbarch, i)), file); |
c906108c SS |
1820 | |
1821 | /* Get the data in raw format. */ | |
9730f241 | 1822 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1823 | { |
0ab7a791 | 1824 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1825 | continue; |
1826 | } | |
1827 | ||
0ab7a791 AC |
1828 | /* If virtual format is floating, print it that way, and in raw |
1829 | hex. */ | |
f949c649 TJB |
1830 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1831 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1832 | { |
0ab7a791 | 1833 | int j; |
79a45b7d | 1834 | struct value_print_options opts; |
c906108c | 1835 | |
79a45b7d TT |
1836 | get_user_print_options (&opts); |
1837 | opts.deref_ref = 1; | |
a4bd449d | 1838 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1839 | file, 0, &opts, current_language); |
c906108c | 1840 | |
0ab7a791 | 1841 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1842 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1843 | { |
0ab7a791 | 1844 | int idx; |
a4bd449d | 1845 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1846 | idx = j; |
1847 | else | |
a4bd449d | 1848 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1849 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1850 | } |
0ab7a791 | 1851 | fprintf_filtered (file, ")"); |
c906108c | 1852 | } |
c906108c SS |
1853 | else |
1854 | { | |
79a45b7d TT |
1855 | struct value_print_options opts; |
1856 | ||
ab4327e0 | 1857 | /* Print the register in hex. */ |
79a45b7d TT |
1858 | get_formatted_print_options (&opts, 'x'); |
1859 | opts.deref_ref = 1; | |
a4bd449d | 1860 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d TT |
1861 | file, 0, &opts, |
1862 | current_language); | |
ab4327e0 EZ |
1863 | /* If not a vector register, print it also according to its |
1864 | natural format. */ | |
a4bd449d | 1865 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1866 | { |
79a45b7d TT |
1867 | get_user_print_options (&opts); |
1868 | opts.deref_ref = 1; | |
9d84ac84 | 1869 | fprintf_filtered (file, "\t"); |
a4bd449d | 1870 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1871 | file, 0, &opts, current_language); |
ab4327e0 | 1872 | } |
c906108c SS |
1873 | } |
1874 | ||
0ab7a791 | 1875 | fprintf_filtered (file, "\n"); |
c906108c SS |
1876 | } |
1877 | } | |
c906108c | 1878 | |
c906108c | 1879 | void |
fba45db2 | 1880 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1881 | { |
206415a3 | 1882 | struct frame_info *frame; |
a4bd449d | 1883 | struct gdbarch *gdbarch; |
c906108c | 1884 | int regnum, numregs; |
52f0bd74 | 1885 | char *end; |
c906108c SS |
1886 | |
1887 | if (!target_has_registers) | |
8a3fe4f8 | 1888 | error (_("The program has no registers now.")); |
206415a3 | 1889 | frame = get_selected_frame (NULL); |
a4bd449d | 1890 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1891 | |
1892 | if (!addr_exp) | |
1893 | { | |
a4bd449d | 1894 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1895 | frame, -1, fpregs); |
c906108c SS |
1896 | return; |
1897 | } | |
1898 | ||
f9418c0f | 1899 | while (*addr_exp != '\0') |
c5aa993b | 1900 | { |
f9418c0f AC |
1901 | char *start; |
1902 | const char *end; | |
c906108c | 1903 | |
f9418c0f AC |
1904 | /* Keep skipping leading white space. */ |
1905 | if (isspace ((*addr_exp))) | |
1906 | { | |
1907 | addr_exp++; | |
1908 | continue; | |
1909 | } | |
c906108c | 1910 | |
f9418c0f AC |
1911 | /* Discard any leading ``$''. Check that there is something |
1912 | resembling a register following it. */ | |
1913 | if (addr_exp[0] == '$') | |
1914 | addr_exp++; | |
1915 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1916 | error (_("Missing register name")); |
c906108c | 1917 | |
f9418c0f AC |
1918 | /* Find the start/end of this register name/num/group. */ |
1919 | start = addr_exp; | |
1920 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1921 | addr_exp++; | |
1922 | end = addr_exp; | |
ad842144 | 1923 | |
f9418c0f AC |
1924 | /* Figure out what we've found and display it. */ |
1925 | ||
1926 | /* A register name? */ | |
1927 | { | |
029a67e4 | 1928 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
f9418c0f AC |
1929 | if (regnum >= 0) |
1930 | { | |
ad842144 MR |
1931 | /* User registers lie completely outside of the range of |
1932 | normal registers. Catch them early so that the target | |
1933 | never sees them. */ | |
1934 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1935 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1936 | { | |
79a45b7d | 1937 | struct value_print_options opts; |
ad842144 MR |
1938 | struct value *val = value_of_user_reg (regnum, frame); |
1939 | ||
1940 | printf_filtered ("%s: ", start); | |
79a45b7d | 1941 | get_formatted_print_options (&opts, 'x'); |
ad842144 MR |
1942 | print_scalar_formatted (value_contents (val), |
1943 | check_typedef (value_type (val)), | |
79a45b7d | 1944 | &opts, 0, gdb_stdout); |
ad842144 MR |
1945 | printf_filtered ("\n"); |
1946 | } | |
1947 | else | |
1948 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1949 | frame, regnum, fpregs); | |
f9418c0f AC |
1950 | continue; |
1951 | } | |
1952 | } | |
ad842144 | 1953 | |
f9418c0f AC |
1954 | /* A register number? (how portable is this one?). */ |
1955 | { | |
1956 | char *endptr; | |
1957 | int regnum = strtol (start, &endptr, 0); | |
1958 | if (endptr == end | |
1959 | && regnum >= 0 | |
a4bd449d UW |
1960 | && regnum < gdbarch_num_regs (gdbarch) |
1961 | + gdbarch_num_pseudo_regs (gdbarch)) | |
f9418c0f | 1962 | { |
a4bd449d | 1963 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1964 | frame, regnum, fpregs); |
f9418c0f AC |
1965 | continue; |
1966 | } | |
1967 | } | |
1968 | ||
1969 | /* A register group? */ | |
1970 | { | |
6c7d17ba | 1971 | struct reggroup *group; |
a4bd449d | 1972 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1973 | group != NULL; |
a4bd449d | 1974 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1975 | { |
1976 | /* Don't bother with a length check. Should the user | |
1977 | enter a short register group name, go with the first | |
1978 | group that matches. */ | |
6c7d17ba | 1979 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1980 | break; |
1981 | } | |
6c7d17ba | 1982 | if (group != NULL) |
f9418c0f AC |
1983 | { |
1984 | int regnum; | |
f57d151a | 1985 | for (regnum = 0; |
a4bd449d UW |
1986 | regnum < gdbarch_num_regs (gdbarch) |
1987 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1988 | regnum++) |
f9418c0f | 1989 | { |
a4bd449d UW |
1990 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1991 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1992 | gdb_stdout, frame, |
f9418c0f AC |
1993 | regnum, fpregs); |
1994 | } | |
1995 | continue; | |
1996 | } | |
1997 | } | |
c906108c | 1998 | |
f9418c0f | 1999 | /* Nothing matched. */ |
8a3fe4f8 | 2000 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2001 | } |
c906108c SS |
2002 | } |
2003 | ||
2004 | void | |
fba45db2 | 2005 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2006 | { |
2007 | registers_info (addr_exp, 1); | |
2008 | } | |
2009 | ||
a58dd373 | 2010 | static void |
fba45db2 | 2011 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2012 | { |
2013 | registers_info (addr_exp, 0); | |
2014 | } | |
e76f1f2e AC |
2015 | |
2016 | static void | |
2017 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
2018 | struct frame_info *frame, const char *args) | |
2019 | { | |
2020 | if (gdbarch_print_vector_info_p (gdbarch)) | |
2021 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2022 | else | |
2023 | { | |
2024 | int regnum; | |
2025 | int printed_something = 0; | |
ab4327e0 | 2026 | |
f57d151a | 2027 | for (regnum = 0; |
a4bd449d UW |
2028 | regnum < gdbarch_num_regs (gdbarch) |
2029 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2030 | regnum++) |
e76f1f2e | 2031 | { |
f9418c0f | 2032 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2033 | { |
2034 | printed_something = 1; | |
e76f1f2e | 2035 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2036 | } |
2037 | } | |
2038 | if (!printed_something) | |
2039 | fprintf_filtered (file, "No vector information\n"); | |
2040 | } | |
2041 | } | |
2042 | ||
2043 | static void | |
2044 | vector_info (char *args, int from_tty) | |
2045 | { | |
206415a3 DJ |
2046 | if (!target_has_registers) |
2047 | error (_("The program has no registers now.")); | |
2048 | ||
2049 | print_vector_info (current_gdbarch, gdb_stdout, | |
2050 | get_selected_frame (NULL), args); | |
e76f1f2e | 2051 | } |
c906108c | 2052 | \f |
c5aa993b | 2053 | |
74531fed PA |
2054 | /* Used in `attach&' command. ARG is a point to an integer |
2055 | representing a process id. Proceed threads of this process iff | |
2056 | they stopped due to debugger request, and when they did, they | |
2057 | reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads | |
2058 | that have been explicitly been told to stop. */ | |
2059 | ||
2060 | static int | |
2061 | proceed_after_attach_callback (struct thread_info *thread, | |
2062 | void *arg) | |
2063 | { | |
2064 | int pid = * (int *) arg; | |
2065 | ||
2066 | if (ptid_get_pid (thread->ptid) == pid | |
2067 | && !is_exited (thread->ptid) | |
2068 | && !is_executing (thread->ptid) | |
2069 | && !thread->stop_requested | |
2070 | && thread->stop_signal == TARGET_SIGNAL_0) | |
2071 | { | |
2072 | switch_to_thread (thread->ptid); | |
2073 | clear_proceed_status (); | |
2074 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2075 | } | |
2076 | ||
2077 | return 0; | |
2078 | } | |
2079 | ||
2080 | static void | |
2081 | proceed_after_attach (int pid) | |
2082 | { | |
2083 | /* Don't error out if the current thread is running, because | |
2084 | there may be other stopped threads. */ | |
2085 | struct cleanup *old_chain; | |
2086 | ||
2087 | /* Backup current thread and selected frame. */ | |
2088 | old_chain = make_cleanup_restore_current_thread (); | |
2089 | ||
2090 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2091 | ||
2092 | /* Restore selected ptid. */ | |
2093 | do_cleanups (old_chain); | |
2094 | } | |
2095 | ||
c906108c SS |
2096 | /* |
2097 | * TODO: | |
2098 | * Should save/restore the tty state since it might be that the | |
2099 | * program to be debugged was started on this tty and it wants | |
2100 | * the tty in some state other than what we want. If it's running | |
2101 | * on another terminal or without a terminal, then saving and | |
2102 | * restoring the tty state is a harmless no-op. | |
2103 | * This only needs to be done if we are attaching to a process. | |
2104 | */ | |
2105 | ||
2106 | /* | |
2107 | attach_command -- | |
2108 | takes a program started up outside of gdb and ``attaches'' to it. | |
2109 | This stops it cold in its tracks and allows us to start debugging it. | |
2110 | and wait for the trace-trap that results from attaching. */ | |
2111 | ||
9356cf8d PA |
2112 | static void |
2113 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2114 | { | |
2115 | char *exec_file; | |
2116 | char *full_exec_path = NULL; | |
d6b48e9c | 2117 | struct inferior *inferior; |
9356cf8d | 2118 | |
d6b48e9c PA |
2119 | inferior = current_inferior (); |
2120 | inferior->stop_soon = NO_STOP_QUIETLY; | |
9356cf8d PA |
2121 | |
2122 | /* If no exec file is yet known, try to determine it from the | |
2123 | process itself. */ | |
2124 | exec_file = (char *) get_exec_file (0); | |
2125 | if (!exec_file) | |
2126 | { | |
2127 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2128 | if (exec_file) | |
2129 | { | |
2130 | /* It's possible we don't have a full path, but rather just a | |
2131 | filename. Some targets, such as HP-UX, don't provide the | |
2132 | full path, sigh. | |
2133 | ||
2134 | Attempt to qualify the filename against the source path. | |
2135 | (If that fails, we'll just fall back on the original | |
2136 | filename. Not much more we can do...) | |
2137 | */ | |
2138 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
2139 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
2140 | ||
2141 | exec_file_attach (full_exec_path, from_tty); | |
2142 | symbol_file_add_main (full_exec_path, from_tty); | |
2143 | } | |
2144 | } | |
2145 | else | |
2146 | { | |
2147 | reopen_exec_file (); | |
2148 | reread_symbols (); | |
2149 | } | |
2150 | ||
2151 | /* Take any necessary post-attaching actions for this platform. */ | |
2152 | target_post_attach (PIDGET (inferior_ptid)); | |
2153 | ||
2154 | post_create_inferior (¤t_target, from_tty); | |
2155 | ||
2156 | /* Install inferior's terminal modes. */ | |
2157 | target_terminal_inferior (); | |
2158 | ||
2159 | if (async_exec) | |
74531fed PA |
2160 | { |
2161 | /* The user requested an `attach&', so be sure to leave threads | |
2162 | that didn't get a signal running. */ | |
2163 | ||
2164 | /* Immediatelly resume all suspended threads of this inferior, | |
2165 | and this inferior only. This should have no effect on | |
2166 | already running threads. If a thread has been stopped with a | |
2167 | signal, leave it be. */ | |
2168 | if (non_stop) | |
2169 | proceed_after_attach (inferior->pid); | |
2170 | else | |
2171 | { | |
2172 | if (inferior_thread ()->stop_signal == TARGET_SIGNAL_0) | |
2173 | { | |
2174 | clear_proceed_status (); | |
2175 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2176 | } | |
2177 | } | |
2178 | } | |
9356cf8d PA |
2179 | else |
2180 | { | |
74531fed PA |
2181 | /* The user requested a plain `attach', so be sure to leave |
2182 | the inferior stopped. */ | |
2183 | ||
9356cf8d PA |
2184 | if (target_can_async_p ()) |
2185 | async_enable_stdin (); | |
74531fed PA |
2186 | |
2187 | /* At least the current thread is already stopped. */ | |
2188 | ||
2189 | /* In all-stop, by definition, all threads have to be already | |
2190 | stopped at this point. In non-stop, however, although the | |
2191 | selected thread is stopped, others may still be executing. | |
2192 | Be sure to explicitly stop all threads of the process. This | |
2193 | should have no effect on already stopped threads. */ | |
2194 | if (non_stop) | |
2195 | target_stop (pid_to_ptid (inferior->pid)); | |
2196 | ||
2197 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2198 | normal_stop (); |
2199 | if (deprecated_attach_hook) | |
2200 | deprecated_attach_hook (); | |
2201 | } | |
2202 | } | |
2203 | ||
bfec99b2 | 2204 | struct attach_command_continuation_args |
9356cf8d PA |
2205 | { |
2206 | char *args; | |
2207 | int from_tty; | |
2208 | int async_exec; | |
bfec99b2 | 2209 | }; |
9356cf8d | 2210 | |
bfec99b2 | 2211 | static void |
604ead4a | 2212 | attach_command_continuation (void *args) |
bfec99b2 PA |
2213 | { |
2214 | struct attach_command_continuation_args *a = args; | |
2215 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); | |
9356cf8d PA |
2216 | } |
2217 | ||
604ead4a PA |
2218 | static void |
2219 | attach_command_continuation_free_args (void *args) | |
2220 | { | |
2221 | struct attach_command_continuation_args *a = args; | |
2222 | xfree (a->args); | |
2223 | xfree (a); | |
2224 | } | |
2225 | ||
c906108c | 2226 | void |
fba45db2 | 2227 | attach_command (char *args, int from_tty) |
c906108c | 2228 | { |
c5aa993b JM |
2229 | char *exec_file; |
2230 | char *full_exec_path = NULL; | |
9356cf8d | 2231 | int async_exec = 0; |
cb0362bb | 2232 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2233 | |
c5aa993b | 2234 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2235 | |
8a305172 PA |
2236 | if (target_supports_multi_process ()) |
2237 | /* Don't complain if we can be attached to multiple processes. */ | |
2238 | ; | |
2239 | else if (target_has_execution) | |
c906108c SS |
2240 | { |
2241 | if (query ("A program is being debugged already. Kill it? ")) | |
2242 | target_kill (); | |
2243 | else | |
8a3fe4f8 | 2244 | error (_("Not killed.")); |
c906108c SS |
2245 | } |
2246 | ||
fd79ecee DJ |
2247 | /* Clean up any leftovers from other runs. Some other things from |
2248 | this function should probably be moved into target_pre_inferior. */ | |
2249 | target_pre_inferior (from_tty); | |
2250 | ||
9908b566 VP |
2251 | if (non_stop && !target_supports_non_stop ()) |
2252 | error (_("Cannot attach to this target in non-stop mode")); | |
2253 | ||
9356cf8d PA |
2254 | if (args) |
2255 | { | |
2256 | async_exec = strip_bg_char (&args); | |
2257 | ||
2258 | /* If we get a request for running in the bg but the target | |
2259 | doesn't support it, error out. */ | |
2260 | if (async_exec && !target_can_async_p ()) | |
2261 | error (_("Asynchronous execution not supported on this target.")); | |
2262 | } | |
2263 | ||
2264 | /* If we don't get a request of running in the bg, then we need | |
2265 | to simulate synchronous (fg) execution. */ | |
2266 | if (!async_exec && target_can_async_p ()) | |
2267 | { | |
2268 | /* Simulate synchronous execution */ | |
2269 | async_disable_stdin (); | |
cb0362bb | 2270 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2271 | } |
2272 | ||
c906108c SS |
2273 | target_attach (args, from_tty); |
2274 | ||
2275 | /* Set up the "saved terminal modes" of the inferior | |
2276 | based on what modes we are starting it with. */ | |
2277 | target_terminal_init (); | |
2278 | ||
c906108c SS |
2279 | /* Set up execution context to know that we should return from |
2280 | wait_for_inferior as soon as the target reports a stop. */ | |
2281 | init_wait_for_inferior (); | |
2282 | clear_proceed_status (); | |
c906108c | 2283 | |
74531fed PA |
2284 | if (non_stop) |
2285 | { | |
2286 | /* If we find that the current thread isn't stopped, explicitly | |
2287 | do so now, because we're going to install breakpoints and | |
2288 | poke at memory. */ | |
2289 | ||
2290 | if (async_exec) | |
2291 | /* The user requested an `attach&'; stop just one thread. */ | |
2292 | target_stop (inferior_ptid); | |
2293 | else | |
2294 | /* The user requested an `attach', so stop all threads of this | |
2295 | inferior. */ | |
2296 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2297 | } | |
2298 | ||
dc177b7a PA |
2299 | /* Some system don't generate traps when attaching to inferior. |
2300 | E.g. Mach 3 or GNU hurd. */ | |
2301 | if (!target_attach_no_wait) | |
c5aa993b | 2302 | { |
d6b48e9c PA |
2303 | struct inferior *inferior = current_inferior (); |
2304 | ||
dc177b7a PA |
2305 | /* Careful here. See comments in inferior.h. Basically some |
2306 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2307 | need a way for handle_inferior_event to reset the stop_signal | |
2308 | variable after an attach, and this is what | |
2309 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
d6b48e9c | 2310 | inferior->stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2311 | |
dc177b7a PA |
2312 | if (target_can_async_p ()) |
2313 | { | |
2314 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2315 | struct attach_command_continuation_args *a; |
2316 | ||
2317 | a = xmalloc (sizeof (*a)); | |
2318 | a->args = xstrdup (args); | |
2319 | a->from_tty = from_tty; | |
2320 | a->async_exec = async_exec; | |
e0ba6746 PA |
2321 | add_inferior_continuation (attach_command_continuation, a, |
2322 | attach_command_continuation_free_args); | |
cb0362bb | 2323 | discard_cleanups (back_to); |
dc177b7a PA |
2324 | return; |
2325 | } | |
c906108c | 2326 | |
dc177b7a PA |
2327 | wait_for_inferior (0); |
2328 | } | |
6426a772 | 2329 | |
9356cf8d | 2330 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2331 | discard_cleanups (back_to); |
c906108c SS |
2332 | } |
2333 | ||
2334 | /* | |
2335 | * detach_command -- | |
2336 | * takes a program previously attached to and detaches it. | |
2337 | * The program resumes execution and will no longer stop | |
2338 | * on signals, etc. We better not have left any breakpoints | |
2339 | * in the program or it'll die when it hits one. For this | |
2340 | * to work, it may be necessary for the process to have been | |
2341 | * previously attached. It *might* work if the program was | |
2342 | * started via the normal ptrace (PTRACE_TRACEME). | |
2343 | */ | |
2344 | ||
6418d433 | 2345 | void |
fba45db2 | 2346 | detach_command (char *args, int from_tty) |
c906108c | 2347 | { |
1f5d0fc9 | 2348 | dont_repeat (); /* Not for the faint of heart. */ |
c906108c | 2349 | target_detach (args, from_tty); |
50c71eaf PA |
2350 | |
2351 | /* If the solist is global across inferiors, don't clear it when we | |
2352 | detach from a single inferior. */ | |
2353 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2354 | no_shared_libraries (NULL, from_tty); | |
8a305172 PA |
2355 | |
2356 | /* If the current target interface claims there's still execution, | |
2357 | then don't mess with threads of other processes. */ | |
2358 | if (!target_has_execution) | |
2359 | init_thread_list (); | |
2360 | ||
9a4105ab AC |
2361 | if (deprecated_detach_hook) |
2362 | deprecated_detach_hook (); | |
c906108c SS |
2363 | } |
2364 | ||
6ad8ae5c DJ |
2365 | /* Disconnect from the current target without resuming it (leaving it |
2366 | waiting for a debugger). | |
2367 | ||
2368 | We'd better not have left any breakpoints in the program or the | |
2369 | next debugger will get confused. Currently only supported for some | |
2370 | remote targets, since the normal attach mechanisms don't work on | |
2371 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2372 | ||
2373 | static void | |
2374 | disconnect_command (char *args, int from_tty) | |
2375 | { | |
2376 | dont_repeat (); /* Not for the faint of heart */ | |
2377 | target_disconnect (args, from_tty); | |
e85a822c | 2378 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2379 | init_thread_list (); |
9a4105ab AC |
2380 | if (deprecated_detach_hook) |
2381 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2382 | } |
2383 | ||
77ebaa5a VP |
2384 | void |
2385 | interrupt_target_1 (int all_threads) | |
2386 | { | |
2387 | ptid_t ptid; | |
2388 | if (all_threads) | |
2389 | ptid = minus_one_ptid; | |
2390 | else | |
2391 | ptid = inferior_ptid; | |
2392 | target_stop (ptid); | |
252fbfc8 PA |
2393 | |
2394 | /* Tag the thread as having been explicitly requested to stop, so | |
2395 | other parts of gdb know not to resume this thread automatically, | |
2396 | if it was stopped due to an internal event. Limit this to | |
2397 | non-stop mode, as when debugging a multi-threaded application in | |
2398 | all-stop mode, we will only get one stop event --- it's undefined | |
2399 | which thread will report the event. */ | |
2400 | if (non_stop) | |
2401 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2402 | } |
2403 | ||
43ff13b4 | 2404 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2405 | the backgound. In all-stop, stop the whole process. In non-stop |
2406 | mode, stop the current thread only by default, or stop all threads | |
2407 | if the `-a' switch is used. */ | |
2408 | ||
2409 | /* interrupt [-a] */ | |
8b93c638 | 2410 | void |
fba45db2 | 2411 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2412 | { |
362646f5 | 2413 | if (target_can_async_p ()) |
43ff13b4 | 2414 | { |
8cae4b3f PA |
2415 | int all_threads = 0; |
2416 | ||
c5aa993b | 2417 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2418 | |
8cae4b3f PA |
2419 | if (args != NULL |
2420 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2421 | all_threads = 1; | |
2422 | ||
2423 | if (!non_stop && all_threads) | |
2424 | error (_("-a is meaningless in all-stop mode.")); | |
2425 | ||
77ebaa5a | 2426 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2427 | } |
2428 | } | |
2429 | ||
c906108c | 2430 | static void |
23e3a7ac AC |
2431 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2432 | struct frame_info *frame, const char *args) | |
c906108c | 2433 | { |
23e3a7ac AC |
2434 | if (gdbarch_print_float_info_p (gdbarch)) |
2435 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2436 | else | |
2437 | { | |
23e3a7ac AC |
2438 | int regnum; |
2439 | int printed_something = 0; | |
ab4327e0 | 2440 | |
f57d151a | 2441 | for (regnum = 0; |
a4bd449d UW |
2442 | regnum < gdbarch_num_regs (gdbarch) |
2443 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2444 | regnum++) |
23e3a7ac | 2445 | { |
f9418c0f | 2446 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2447 | { |
2448 | printed_something = 1; | |
23e3a7ac | 2449 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2450 | } |
2451 | } | |
2452 | if (!printed_something) | |
2453 | fprintf_filtered (file, "\ | |
2454 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2455 | } |
2456 | } | |
2457 | ||
2458 | static void | |
2459 | float_info (char *args, int from_tty) | |
2460 | { | |
206415a3 DJ |
2461 | if (!target_has_registers) |
2462 | error (_("The program has no registers now.")); | |
2463 | ||
1f5d0fc9 | 2464 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2465 | get_selected_frame (NULL), args); |
c906108c SS |
2466 | } |
2467 | \f | |
c906108c | 2468 | static void |
fba45db2 | 2469 | unset_command (char *args, int from_tty) |
c906108c | 2470 | { |
a3f17187 AC |
2471 | printf_filtered (_("\ |
2472 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2473 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2474 | } | |
2475 | ||
2476 | void | |
fba45db2 | 2477 | _initialize_infcmd (void) |
c906108c | 2478 | { |
3cb3b8df BR |
2479 | struct cmd_list_element *c = NULL; |
2480 | ||
2481 | /* add the filename of the terminal connected to inferior I/O */ | |
2482 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2483 | &inferior_io_terminal, _("\ | |
2484 | Set terminal for future runs of program being debugged."), _("\ | |
2485 | Show terminal for future runs of program being debugged."), _("\ | |
2486 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2487 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2488 | |
b4b4ac0b AC |
2489 | add_setshow_optional_filename_cmd ("args", class_run, |
2490 | &inferior_args, _("\ | |
2491 | Set argument list to give program being debugged when it is started."), _("\ | |
2492 | Show argument list to give program being debugged when it is started."), _("\ | |
2493 | Follow this command with any number of args, to be passed to the program."), | |
2494 | notice_args_set, | |
2495 | notice_args_read, | |
2496 | &setlist, &showlist); | |
c906108c | 2497 | |
1a966eab AC |
2498 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2499 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2500 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2501 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2502 | environment to be given to the program."), &showlist); |
5ba2abeb | 2503 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2504 | |
2505 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2506 | _("Complement to certain \"set\" commands."), |
c906108c | 2507 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2508 | |
1a966eab AC |
2509 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2510 | Cancel environment variable VAR for the program.\n\ | |
2511 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2512 | &unsetlist); |
5ba2abeb | 2513 | set_cmd_completer (c, noop_completer); |
c906108c | 2514 | |
1a966eab AC |
2515 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2516 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2517 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2518 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2519 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2520 | &setlist); |
5ba2abeb | 2521 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2522 | |
1bedd215 AC |
2523 | c = add_com ("path", class_files, path_command, _("\ |
2524 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2525 | $cwd in the path means the current working directory.\n\ |
2526 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2527 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2528 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2529 | set_cmd_completer (c, filename_completer); |
c906108c | 2530 | |
1a966eab AC |
2531 | c = add_cmd ("paths", no_class, path_info, _("\ |
2532 | Current search path for finding object files.\n\ | |
c906108c SS |
2533 | $cwd in the path means the current working directory.\n\ |
2534 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2535 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2536 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2537 | &showlist); |
5ba2abeb | 2538 | set_cmd_completer (c, noop_completer); |
c906108c | 2539 | |
1bedd215 AC |
2540 | add_com ("attach", class_run, attach_command, _("\ |
2541 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2542 | This command attaches to another target, of the same type as your last\n\ |
2543 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2544 | The command may take as argument a process id or a device file.\n\ | |
2545 | For a process id, you must have permission to send the process a signal,\n\ | |
2546 | and it must have the same effective uid as the debugger.\n\ | |
2547 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2548 | program running in the process, looking first in the current working\n\ | |
2549 | directory, or (if not found there) using the source file search path\n\ | |
2550 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2551 | to specify the program, and to load its symbol table.")); |
c906108c | 2552 | |
f73adfeb | 2553 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2554 | Detach a process or file previously attached.\n\ |
c906108c | 2555 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2556 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2557 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2558 | |
1bedd215 AC |
2559 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2560 | Disconnect from a target.\n\ | |
6ad8ae5c | 2561 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2562 | all targets.")); |
6ad8ae5c | 2563 | |
1bedd215 AC |
2564 | add_com ("signal", class_run, signal_command, _("\ |
2565 | Continue program giving it signal specified by the argument.\n\ | |
2566 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2567 | |
1bedd215 AC |
2568 | add_com ("stepi", class_run, stepi_command, _("\ |
2569 | Step one instruction exactly.\n\ | |
2570 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2571 | add_com_alias ("si", "stepi", class_alias, 0); |
2572 | ||
1bedd215 AC |
2573 | add_com ("nexti", class_run, nexti_command, _("\ |
2574 | Step one instruction, but proceed through subroutine calls.\n\ | |
2575 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2576 | add_com_alias ("ni", "nexti", class_alias, 0); |
2577 | ||
1bedd215 AC |
2578 | add_com ("finish", class_run, finish_command, _("\ |
2579 | Execute until selected stack frame returns.\n\ | |
2580 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2581 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2582 | |
1bedd215 AC |
2583 | add_com ("next", class_run, next_command, _("\ |
2584 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2585 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2586 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2587 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2588 | add_com_alias ("n", "next", class_run, 1); |
2589 | if (xdb_commands) | |
c5aa993b | 2590 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2591 | |
1bedd215 AC |
2592 | add_com ("step", class_run, step_command, _("\ |
2593 | Step program until it reaches a different source line.\n\ | |
2594 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2595 | add_com_alias ("s", "step", class_run, 1); |
2596 | ||
1bedd215 AC |
2597 | c = add_com ("until", class_run, until_command, _("\ |
2598 | Execute until the program reaches a source line greater than the current\n\ | |
2599 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2600 | set_cmd_completer (c, location_completer); |
c906108c | 2601 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2602 | |
1bedd215 AC |
2603 | c = add_com ("advance", class_run, advance_command, _("\ |
2604 | Continue the program up to the given location (same form as args for break command).\n\ | |
2605 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2606 | set_cmd_completer (c, location_completer); |
2607 | ||
1bedd215 AC |
2608 | c = add_com ("jump", class_run, jump_command, _("\ |
2609 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2610 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2611 | for an address to start at.")); |
5ba2abeb | 2612 | set_cmd_completer (c, location_completer); |
c906108c | 2613 | |
b83266a0 | 2614 | if (xdb_commands) |
c94fdfd0 | 2615 | { |
1bedd215 AC |
2616 | c = add_com ("go", class_run, go_command, _("\ |
2617 | Usage: go <location>\n\ | |
c906108c SS |
2618 | Continue program being debugged, stopping at specified line or \n\ |
2619 | address.\n\ | |
2620 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2621 | expression for an address to start at.\n\ | |
1bedd215 | 2622 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2623 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2624 | } |
b83266a0 | 2625 | |
c906108c | 2626 | if (xdb_commands) |
c5aa993b | 2627 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2628 | |
8cae4b3f | 2629 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2630 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2631 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2632 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2633 | the breakpoint won't break until the Nth time it is reached).\n\ |
2634 | \n\ | |
2635 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2636 | otherwise all the threads in the program are continued. To \n\ | |
2637 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2638 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2639 | add_com_alias ("c", "cont", class_run, 1); |
2640 | add_com_alias ("fg", "cont", class_run, 1); | |
2641 | ||
1bedd215 AC |
2642 | c = add_com ("run", class_run, run_command, _("\ |
2643 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2644 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2645 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2646 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2647 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2648 | use \"set args\" without arguments.")); |
5ba2abeb | 2649 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2650 | add_com_alias ("r", "run", class_run, 1); |
2651 | if (xdb_commands) | |
2652 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2653 | _("Start debugged program with no arguments.")); |
c906108c | 2654 | |
1bedd215 | 2655 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2656 | Run the debugged program until the beginning of the main procedure.\n\ |
2657 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2658 | \"run\" command.")); |
a4d5f2e0 JB |
2659 | set_cmd_completer (c, filename_completer); |
2660 | ||
700b53b1 | 2661 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2662 | _("Interrupt the execution of the debugged program.\n\ |
2663 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2664 | otherwise all the threads in the program are stopped. To \n\ | |
2665 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2666 | |
1bedd215 AC |
2667 | add_info ("registers", nofp_registers_info, _("\ |
2668 | List of integer registers and their contents, for selected stack frame.\n\ | |
2669 | Register name as argument means describe only that register.")); | |
7194c49b | 2670 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2671 | |
2672 | if (xdb_commands) | |
1bedd215 AC |
2673 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2674 | List of integer registers and their contents, for selected stack frame.\n\ | |
2675 | Register name as argument means describe only that register.")); | |
2676 | add_info ("all-registers", all_registers_info, _("\ | |
2677 | List of all registers and their contents, for selected stack frame.\n\ | |
2678 | Register name as argument means describe only that register.")); | |
c906108c SS |
2679 | |
2680 | add_info ("program", program_info, | |
1bedd215 | 2681 | _("Execution status of the program.")); |
c906108c SS |
2682 | |
2683 | add_info ("float", float_info, | |
1bedd215 | 2684 | _("Print the status of the floating point unit\n")); |
c906108c | 2685 | |
e76f1f2e | 2686 | add_info ("vector", vector_info, |
1bedd215 | 2687 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2688 | |
c906108c SS |
2689 | inferior_environ = make_environ (); |
2690 | init_environ (inferior_environ); | |
2691 | } |