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 | |
a14ed312 | 89 | static void detach_command (char *, int); |
c906108c | 90 | |
6ad8ae5c DJ |
91 | static void disconnect_command (char *, int); |
92 | ||
a14ed312 | 93 | static void unset_environment_command (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void set_environment_command (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void environment_info (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void program_info (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void finish_command (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void signal_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void jump_command (char *, int); |
c906108c | 106 | |
a14ed312 | 107 | static void step_1 (int, int, char *); |
611c83ae | 108 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
c906108c | 109 | |
a14ed312 | 110 | static void next_command (char *, int); |
c906108c | 111 | |
a14ed312 | 112 | static void step_command (char *, int); |
c906108c | 113 | |
a14ed312 | 114 | static void run_command (char *, int); |
c906108c | 115 | |
a14ed312 | 116 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 117 | |
a14ed312 | 118 | static void go_command (char *line_no, int from_tty); |
392a587b | 119 | |
a14ed312 | 120 | static int strip_bg_char (char **); |
43ff13b4 | 121 | |
a14ed312 | 122 | void _initialize_infcmd (void); |
c906108c | 123 | |
c906108c | 124 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 125 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
126 | |
127 | /* String containing arguments to give to the program, separated by spaces. | |
128 | Empty string (pointer to '\0') means no args. */ | |
129 | ||
130 | static char *inferior_args; | |
131 | ||
552c04a7 TT |
132 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
133 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
134 | ||
135 | static int inferior_argc; | |
136 | static char **inferior_argv; | |
137 | ||
c906108c SS |
138 | /* File name for default use for standard in/out in the inferior. */ |
139 | ||
3cb3b8df | 140 | static char *inferior_io_terminal; |
c906108c SS |
141 | |
142 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
143 | Since various parts of infrun.c test this to see whether there is a program | |
144 | being debugged it should be nonzero (currently 3 is used) for remote | |
145 | debugging. */ | |
146 | ||
39f77062 | 147 | ptid_t inferior_ptid; |
c906108c | 148 | |
c906108c SS |
149 | /* Address at which inferior stopped. */ |
150 | ||
151 | CORE_ADDR stop_pc; | |
152 | ||
c906108c SS |
153 | /* Flag indicating that a command has proceeded the inferior past the |
154 | current breakpoint. */ | |
155 | ||
156 | int breakpoint_proceeded; | |
157 | ||
c906108c SS |
158 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
159 | ||
160 | int stop_stack_dummy; | |
161 | ||
162 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
163 | process. */ | |
164 | ||
165 | int stopped_by_random_signal; | |
166 | ||
c906108c SS |
167 | /* Environment to use for running inferior, |
168 | in format described in environ.h. */ | |
169 | ||
1bf1958d | 170 | struct gdb_environ *inferior_environ; |
f5871ec0 | 171 | |
8f6a8e84 VP |
172 | /* When set, no calls to target_resumed observer will be made. */ |
173 | int suppress_resume_observer = 0; | |
174 | /* When set, normal_stop will not call the normal_stop observer. */ | |
175 | int suppress_stop_observer = 0; | |
c906108c | 176 | \f |
07091751 FN |
177 | /* Accessor routines. */ |
178 | ||
3cb3b8df BR |
179 | void |
180 | set_inferior_io_terminal (const char *terminal_name) | |
181 | { | |
182 | if (inferior_io_terminal) | |
183 | xfree (inferior_io_terminal); | |
184 | ||
185 | if (!terminal_name) | |
186 | inferior_io_terminal = NULL; | |
187 | else | |
188 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
189 | } | |
190 | ||
191 | const char * | |
192 | get_inferior_io_terminal (void) | |
193 | { | |
194 | return inferior_io_terminal; | |
195 | } | |
196 | ||
07091751 FN |
197 | char * |
198 | get_inferior_args (void) | |
199 | { | |
552c04a7 TT |
200 | if (inferior_argc != 0) |
201 | { | |
202 | char *n, *old; | |
203 | ||
204 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
205 | inferior_argc, inferior_argv); | |
206 | old = set_inferior_args (n); | |
207 | xfree (old); | |
208 | } | |
209 | ||
210 | if (inferior_args == NULL) | |
211 | inferior_args = xstrdup (""); | |
212 | ||
07091751 FN |
213 | return inferior_args; |
214 | } | |
215 | ||
216 | char * | |
217 | set_inferior_args (char *newargs) | |
218 | { | |
219 | char *saved_args = inferior_args; | |
220 | ||
221 | inferior_args = newargs; | |
552c04a7 TT |
222 | inferior_argc = 0; |
223 | inferior_argv = 0; | |
07091751 FN |
224 | |
225 | return saved_args; | |
226 | } | |
c5aa993b | 227 | |
552c04a7 TT |
228 | void |
229 | set_inferior_args_vector (int argc, char **argv) | |
230 | { | |
231 | inferior_argc = argc; | |
232 | inferior_argv = argv; | |
233 | } | |
234 | ||
235 | /* Notice when `set args' is run. */ | |
236 | static void | |
237 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
238 | { | |
239 | inferior_argc = 0; | |
240 | inferior_argv = 0; | |
241 | } | |
242 | ||
243 | /* Notice when `show args' is run. */ | |
244 | static void | |
b4b4ac0b AC |
245 | notice_args_read (struct ui_file *file, int from_tty, |
246 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 247 | { |
258c00cc TT |
248 | /* Note that we ignore the passed-in value in favor of computing it |
249 | directly. */ | |
250 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
251 | } |
252 | ||
c2a727fa TT |
253 | \f |
254 | /* Compute command-line string given argument vector. This does the | |
255 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
256 | char * |
257 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
258 | { | |
259 | char *result; | |
260 | ||
261 | if (STARTUP_WITH_SHELL) | |
262 | { | |
263 | /* This holds all the characters considered special to the | |
264 | typical Unix shells. We include `^' because the SunOS | |
265 | /bin/sh treats it as a synonym for `|'. */ | |
266 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
267 | int i; | |
268 | int length = 0; | |
269 | char *out, *cp; | |
270 | ||
271 | /* We over-compute the size. It shouldn't matter. */ | |
272 | for (i = 0; i < argc; ++i) | |
c2226152 | 273 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
274 | |
275 | result = (char *) xmalloc (length); | |
276 | out = result; | |
277 | ||
278 | for (i = 0; i < argc; ++i) | |
279 | { | |
280 | if (i > 0) | |
281 | *out++ = ' '; | |
282 | ||
03c6228e AS |
283 | /* Need to handle empty arguments specially. */ |
284 | if (argv[i][0] == '\0') | |
c2a727fa | 285 | { |
03c6228e AS |
286 | *out++ = '\''; |
287 | *out++ = '\''; | |
288 | } | |
289 | else | |
290 | { | |
291 | for (cp = argv[i]; *cp; ++cp) | |
292 | { | |
c2226152 AS |
293 | if (*cp == '\n') |
294 | { | |
295 | /* A newline cannot be quoted with a backslash (it | |
296 | just disappears), only by putting it inside | |
297 | quotes. */ | |
298 | *out++ = '\''; | |
299 | *out++ = '\n'; | |
300 | *out++ = '\''; | |
301 | } | |
302 | else | |
303 | { | |
304 | if (strchr (special, *cp) != NULL) | |
305 | *out++ = '\\'; | |
306 | *out++ = *cp; | |
307 | } | |
03c6228e | 308 | } |
c2a727fa TT |
309 | } |
310 | } | |
311 | *out = '\0'; | |
312 | } | |
313 | else | |
314 | { | |
315 | /* In this case we can't handle arguments that contain spaces, | |
316 | tabs, or newlines -- see breakup_args(). */ | |
317 | int i; | |
318 | int length = 0; | |
319 | ||
320 | for (i = 0; i < argc; ++i) | |
321 | { | |
322 | char *cp = strchr (argv[i], ' '); | |
323 | if (cp == NULL) | |
324 | cp = strchr (argv[i], '\t'); | |
325 | if (cp == NULL) | |
326 | cp = strchr (argv[i], '\n'); | |
327 | if (cp != NULL) | |
8a3fe4f8 | 328 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
329 | length += strlen (argv[i]) + 1; |
330 | } | |
331 | ||
332 | result = (char *) xmalloc (length); | |
333 | result[0] = '\0'; | |
334 | for (i = 0; i < argc; ++i) | |
335 | { | |
336 | if (i > 0) | |
337 | strcat (result, " "); | |
338 | strcat (result, argv[i]); | |
339 | } | |
340 | } | |
341 | ||
342 | return result; | |
343 | } | |
552c04a7 TT |
344 | \f |
345 | ||
43ff13b4 JM |
346 | /* This function detects whether or not a '&' character (indicating |
347 | background execution) has been added as *the last* of the arguments ARGS | |
348 | of a command. If it has, it removes it and returns 1. Otherwise it | |
349 | does nothing and returns 0. */ | |
c5aa993b | 350 | static int |
fba45db2 | 351 | strip_bg_char (char **args) |
43ff13b4 JM |
352 | { |
353 | char *p = NULL; | |
c5aa993b | 354 | |
9846de1b | 355 | p = strchr (*args, '&'); |
c5aa993b | 356 | |
9846de1b | 357 | if (p) |
43ff13b4 JM |
358 | { |
359 | if (p == (*args + strlen (*args) - 1)) | |
360 | { | |
c5aa993b | 361 | if (strlen (*args) > 1) |
43ff13b4 JM |
362 | { |
363 | do | |
364 | p--; | |
365 | while (*p == ' ' || *p == '\t'); | |
366 | *(p + 1) = '\0'; | |
367 | } | |
368 | else | |
369 | *args = 0; | |
370 | return 1; | |
371 | } | |
372 | } | |
373 | return 0; | |
374 | } | |
375 | ||
c906108c | 376 | void |
fba45db2 | 377 | tty_command (char *file, int from_tty) |
c906108c SS |
378 | { |
379 | if (file == 0) | |
e2e0b3e5 | 380 | error_no_arg (_("terminal name for running target process")); |
c906108c | 381 | |
3cb3b8df | 382 | set_inferior_io_terminal (file); |
c906108c SS |
383 | } |
384 | ||
281b533b DJ |
385 | /* Common actions to take after creating any sort of inferior, by any |
386 | means (running, attaching, connecting, et cetera). The target | |
387 | should be stopped. */ | |
388 | ||
389 | void | |
390 | post_create_inferior (struct target_ops *target, int from_tty) | |
391 | { | |
b79599ff DP |
392 | /* Be sure we own the terminal in case write operations are performed. */ |
393 | target_terminal_ours (); | |
394 | ||
424163ea DJ |
395 | /* If the target hasn't taken care of this already, do it now. |
396 | Targets which need to access registers during to_open, | |
397 | to_create_inferior, or to_attach should do it earlier; but many | |
398 | don't need to. */ | |
399 | target_find_description (); | |
400 | ||
50c71eaf PA |
401 | /* If the solist is global across processes, there's no need to |
402 | refetch it here. */ | |
403 | if (exec_bfd && !gdbarch_has_global_solist (target_gdbarch)) | |
9353355f DJ |
404 | { |
405 | /* Sometimes the platform-specific hook loads initial shared | |
406 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
407 | that we can add them with the correct value for FROM_TTY. |
408 | If we made all the inferior hook methods consistent, | |
409 | this call could be removed. */ | |
9353355f DJ |
410 | #ifdef SOLIB_ADD |
411 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
412 | #else | |
413 | solib_add (NULL, from_tty, target, auto_solib_add); | |
414 | #endif | |
50c71eaf | 415 | } |
9353355f | 416 | |
50c71eaf PA |
417 | if (exec_bfd) |
418 | { | |
9353355f DJ |
419 | /* Create the hooks to handle shared library load and unload |
420 | events. */ | |
421 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 422 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
423 | #else |
424 | solib_create_inferior_hook (); | |
425 | #endif | |
9353355f DJ |
426 | } |
427 | ||
281b533b DJ |
428 | observer_notify_inferior_created (target, from_tty); |
429 | } | |
430 | ||
a4d5f2e0 JB |
431 | /* Kill the inferior if already running. This function is designed |
432 | to be called when we are about to start the execution of the program | |
433 | from the beginning. Ask the user to confirm that he wants to restart | |
434 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 435 | |
8edfe269 | 436 | static void |
a4d5f2e0 JB |
437 | kill_if_already_running (int from_tty) |
438 | { | |
39f77062 | 439 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 440 | { |
8edfe269 DJ |
441 | /* Bail out before killing the program if we will not be able to |
442 | restart it. */ | |
443 | target_require_runnable (); | |
444 | ||
adf40b2e JM |
445 | if (from_tty |
446 | && !query ("The program being debugged has been started already.\n\ | |
c906108c | 447 | Start it from the beginning? ")) |
8a3fe4f8 | 448 | error (_("Program not restarted.")); |
c906108c | 449 | target_kill (); |
c906108c | 450 | } |
a4d5f2e0 JB |
451 | } |
452 | ||
f67a969f JB |
453 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
454 | a temporary breakpoint at the begining of the main program before | |
455 | running the program. */ | |
456 | ||
a4d5f2e0 | 457 | static void |
f67a969f | 458 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
459 | { |
460 | char *exec_file; | |
c906108c | 461 | |
a4d5f2e0 JB |
462 | dont_repeat (); |
463 | ||
464 | kill_if_already_running (from_tty); | |
3c35e65b UW |
465 | |
466 | init_wait_for_inferior (); | |
c906108c SS |
467 | clear_breakpoint_hit_counts (); |
468 | ||
fd79ecee DJ |
469 | /* Clean up any leftovers from other runs. Some other things from |
470 | this function should probably be moved into target_pre_inferior. */ | |
471 | target_pre_inferior (from_tty); | |
472 | ||
39ad761d JB |
473 | /* The comment here used to read, "The exec file is re-read every |
474 | time we do a generic_mourn_inferior, so we just have to worry | |
475 | about the symbol file." The `generic_mourn_inferior' function | |
476 | gets called whenever the program exits. However, suppose the | |
477 | program exits, and *then* the executable file changes? We need | |
478 | to check again here. Since reopen_exec_file doesn't do anything | |
479 | if the timestamp hasn't changed, I don't see the harm. */ | |
480 | reopen_exec_file (); | |
c906108c SS |
481 | reread_symbols (); |
482 | ||
f67a969f JB |
483 | /* Insert the temporary breakpoint if a location was specified. */ |
484 | if (tbreak_at_main) | |
485 | tbreak_command (main_name (), 0); | |
486 | ||
39ad761d JB |
487 | exec_file = (char *) get_exec_file (0); |
488 | ||
9908b566 VP |
489 | if (non_stop && !target_supports_non_stop ()) |
490 | error (_("The target does not support running in non-stop mode.")); | |
491 | ||
c906108c SS |
492 | /* We keep symbols from add-symbol-file, on the grounds that the |
493 | user might want to add some symbols before running the program | |
494 | (right?). But sometimes (dynamic loading where the user manually | |
495 | introduces the new symbols with add-symbol-file), the code which | |
496 | the symbols describe does not persist between runs. Currently | |
497 | the user has to manually nuke all symbols between runs if they | |
498 | want them to go away (PR 2207). This is probably reasonable. */ | |
499 | ||
43ff13b4 | 500 | if (!args) |
6426a772 | 501 | { |
362646f5 | 502 | if (target_can_async_p ()) |
6426a772 JM |
503 | async_disable_stdin (); |
504 | } | |
43ff13b4 | 505 | else |
c906108c | 506 | { |
43ff13b4 JM |
507 | int async_exec = strip_bg_char (&args); |
508 | ||
509 | /* If we get a request for running in the bg but the target | |
510 | doesn't support it, error out. */ | |
362646f5 | 511 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 512 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
513 | |
514 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 515 | to simulate synchronous (fg) execution. */ |
362646f5 | 516 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
517 | { |
518 | /* Simulate synchronous execution */ | |
6426a772 | 519 | async_disable_stdin (); |
43ff13b4 JM |
520 | } |
521 | ||
522 | /* If there were other args, beside '&', process them. */ | |
523 | if (args) | |
524 | { | |
07091751 FN |
525 | char *old_args = set_inferior_args (xstrdup (args)); |
526 | xfree (old_args); | |
43ff13b4 | 527 | } |
c906108c SS |
528 | } |
529 | ||
530 | if (from_tty) | |
531 | { | |
8b93c638 JM |
532 | ui_out_field_string (uiout, NULL, "Starting program"); |
533 | ui_out_text (uiout, ": "); | |
534 | if (exec_file) | |
535 | ui_out_field_string (uiout, "execfile", exec_file); | |
536 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
537 | /* We call get_inferior_args() because we might need to compute |
538 | the value now. */ | |
539 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
540 | ui_out_text (uiout, "\n"); |
541 | ui_out_flush (uiout); | |
c906108c SS |
542 | } |
543 | ||
552c04a7 TT |
544 | /* We call get_inferior_args() because we might need to compute |
545 | the value now. */ | |
546 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 547 | environ_vector (inferior_environ), from_tty); |
281b533b | 548 | |
de1b3c3d PA |
549 | /* Pass zero for FROM_TTY, because at this point the "run" command |
550 | has done its thing; now we are setting up the running program. */ | |
551 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
552 | |
553 | /* Start the target running. */ | |
554 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c SS |
555 | } |
556 | ||
557 | ||
f67a969f JB |
558 | static void |
559 | run_command (char *args, int from_tty) | |
560 | { | |
561 | run_command_1 (args, from_tty, 0); | |
562 | } | |
563 | ||
c906108c | 564 | static void |
fba45db2 | 565 | run_no_args_command (char *args, int from_tty) |
c906108c | 566 | { |
07091751 FN |
567 | char *old_args = set_inferior_args (xstrdup ("")); |
568 | xfree (old_args); | |
c906108c | 569 | } |
c906108c | 570 | \f |
c5aa993b | 571 | |
a4d5f2e0 JB |
572 | /* Start the execution of the program up until the beginning of the main |
573 | program. */ | |
574 | ||
575 | static void | |
576 | start_command (char *args, int from_tty) | |
577 | { | |
578 | /* Some languages such as Ada need to search inside the program | |
579 | minimal symbols for the location where to put the temporary | |
580 | breakpoint before starting. */ | |
581 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 582 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 583 | |
f67a969f JB |
584 | /* Run the program until reaching the main procedure... */ |
585 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
586 | } |
587 | ||
8cae4b3f PA |
588 | static int |
589 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
590 | { | |
74531fed PA |
591 | /* We go through all threads individually instead of compressing |
592 | into a single target `resume_all' request, because some threads | |
593 | may be stopped in internal breakpoints/events, or stopped waiting | |
594 | for its turn in the displaced stepping queue (that is, they are | |
595 | running && !executing). The target side has no idea about why | |
596 | the thread is stopped, so a `resume_all' command would resume too | |
597 | much. If/when GDB gains a way to tell the target `hold this | |
598 | thread stopped until I say otherwise', then we can optimize | |
599 | this. */ | |
4f8d22e3 | 600 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
601 | return 0; |
602 | ||
dcf4fbde | 603 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
604 | clear_proceed_status (); |
605 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
606 | return 0; | |
607 | } | |
608 | ||
77ebaa5a VP |
609 | void |
610 | continue_1 (int all_threads) | |
611 | { | |
3d488bfc PA |
612 | ERROR_NO_INFERIOR; |
613 | ||
77ebaa5a VP |
614 | if (non_stop && all_threads) |
615 | { | |
616 | /* Don't error out if the current thread is running, because | |
617 | there may be other stopped threads. */ | |
618 | struct cleanup *old_chain; | |
619 | ||
620 | /* Backup current thread and selected frame. */ | |
621 | old_chain = make_cleanup_restore_current_thread (); | |
622 | ||
623 | iterate_over_threads (proceed_thread_callback, NULL); | |
624 | ||
625 | /* Restore selected ptid. */ | |
626 | do_cleanups (old_chain); | |
627 | } | |
628 | else | |
629 | { | |
630 | ensure_not_running (); | |
631 | clear_proceed_status (); | |
632 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
633 | } | |
634 | } | |
635 | ||
8cae4b3f | 636 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 637 | void |
8cae4b3f | 638 | continue_command (char *args, int from_tty) |
c906108c | 639 | { |
c5aa993b | 640 | int async_exec = 0; |
8cae4b3f | 641 | int all_threads = 0; |
c906108c SS |
642 | ERROR_NO_INFERIOR; |
643 | ||
43ff13b4 | 644 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
645 | if (args != NULL) |
646 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
647 | |
648 | /* If we must run in the background, but the target can't do it, | |
649 | error out. */ | |
362646f5 | 650 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 651 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
652 | |
653 | /* If we are not asked to run in the bg, then prepare to run in the | |
654 | foreground, synchronously. */ | |
362646f5 | 655 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 656 | { |
43ff13b4 | 657 | /* Simulate synchronous execution */ |
6426a772 | 658 | async_disable_stdin (); |
43ff13b4 | 659 | } |
c906108c | 660 | |
8cae4b3f PA |
661 | if (args != NULL) |
662 | { | |
663 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
664 | { | |
665 | all_threads = 1; | |
666 | args += sizeof ("-a") - 1; | |
667 | if (*args == '\0') | |
668 | args = NULL; | |
669 | } | |
670 | } | |
671 | ||
672 | if (!non_stop && all_threads) | |
673 | error (_("`-a' is meaningless in all-stop mode.")); | |
674 | ||
675 | if (args != NULL && all_threads) | |
676 | error (_("\ | |
677 | Can't resume all threads and specify proceed count simultaneously.")); | |
678 | ||
679 | /* If we have an argument left, set proceed count of breakpoint we | |
680 | stopped at. */ | |
681 | if (args != NULL) | |
c906108c | 682 | { |
347bddb7 | 683 | bpstat bs = NULL; |
8671a17b PA |
684 | int num, stat; |
685 | int stopped = 0; | |
347bddb7 PA |
686 | struct thread_info *tp; |
687 | ||
688 | if (non_stop) | |
689 | tp = find_thread_pid (inferior_ptid); | |
690 | else | |
691 | { | |
692 | ptid_t last_ptid; | |
693 | struct target_waitstatus ws; | |
694 | ||
695 | get_last_target_status (&last_ptid, &ws); | |
696 | tp = find_thread_pid (last_ptid); | |
697 | } | |
698 | if (tp != NULL) | |
699 | bs = tp->stop_bpstat; | |
8671a17b PA |
700 | |
701 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
702 | if (stat > 0) | |
703 | { | |
704 | set_ignore_count (num, | |
8cae4b3f | 705 | parse_and_eval_long (args) - 1, |
8671a17b PA |
706 | from_tty); |
707 | /* set_ignore_count prints a message ending with a period. | |
708 | So print two spaces before "Continuing.". */ | |
709 | if (from_tty) | |
710 | printf_filtered (" "); | |
711 | stopped = 1; | |
712 | } | |
713 | ||
714 | if (!stopped && from_tty) | |
c906108c SS |
715 | { |
716 | printf_filtered | |
717 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
718 | } | |
c906108c SS |
719 | } |
720 | ||
721 | if (from_tty) | |
a3f17187 | 722 | printf_filtered (_("Continuing.\n")); |
c906108c | 723 | |
77ebaa5a | 724 | continue_1 (all_threads); |
c906108c SS |
725 | } |
726 | \f | |
727 | /* Step until outside of current statement. */ | |
728 | ||
c906108c | 729 | static void |
fba45db2 | 730 | step_command (char *count_string, int from_tty) |
c906108c SS |
731 | { |
732 | step_1 (0, 0, count_string); | |
733 | } | |
734 | ||
735 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
736 | ||
c906108c | 737 | static void |
fba45db2 | 738 | next_command (char *count_string, int from_tty) |
c906108c SS |
739 | { |
740 | step_1 (1, 0, count_string); | |
741 | } | |
742 | ||
743 | /* Likewise, but step only one instruction. */ | |
744 | ||
c906108c | 745 | void |
fba45db2 | 746 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
747 | { |
748 | step_1 (0, 1, count_string); | |
749 | } | |
750 | ||
c906108c | 751 | void |
fba45db2 | 752 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
753 | { |
754 | step_1 (1, 1, count_string); | |
755 | } | |
756 | ||
74b7792f | 757 | static void |
611c83ae | 758 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 759 | { |
611c83ae PA |
760 | int thread = * (int *) arg; |
761 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
762 | } |
763 | ||
c906108c | 764 | static void |
fba45db2 | 765 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 766 | { |
52f0bd74 | 767 | int count = 1; |
c906108c | 768 | struct frame_info *frame; |
f107f563 | 769 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 770 | int async_exec = 0; |
b3dc826b | 771 | int thread = -1; |
c5aa993b | 772 | |
c906108c | 773 | ERROR_NO_INFERIOR; |
94cc34af | 774 | ensure_not_running (); |
43ff13b4 JM |
775 | |
776 | if (count_string) | |
777 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 778 | |
43ff13b4 JM |
779 | /* If we get a request for running in the bg but the target |
780 | doesn't support it, error out. */ | |
362646f5 | 781 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 782 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
783 | |
784 | /* If we don't get a request of running in the bg, then we need | |
785 | to simulate synchronous (fg) execution. */ | |
362646f5 | 786 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
787 | { |
788 | /* Simulate synchronous execution */ | |
6426a772 | 789 | async_disable_stdin (); |
43ff13b4 JM |
790 | } |
791 | ||
bb518678 | 792 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 793 | |
c5aa993b | 794 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 795 | { |
611c83ae | 796 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 797 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
798 | |
799 | set_longjmp_breakpoint (); | |
800 | ||
b3dc826b | 801 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
802 | } |
803 | ||
804 | /* In synchronous case, all is well, just use the regular for loop. */ | |
362646f5 | 805 | if (!target_can_async_p ()) |
c2d11a7d JM |
806 | { |
807 | for (; count > 0; count--) | |
808 | { | |
4e1c45ea | 809 | struct thread_info *tp = inferior_thread (); |
c2d11a7d JM |
810 | clear_proceed_status (); |
811 | ||
812 | frame = get_current_frame (); | |
4e1c45ea | 813 | tp->step_frame_id = get_frame_id (frame); |
c2d11a7d JM |
814 | |
815 | if (!single_inst) | |
816 | { | |
4e1c45ea PA |
817 | find_pc_line_pc_range (stop_pc, |
818 | &tp->step_range_start, &tp->step_range_end); | |
819 | if (tp->step_range_end == 0) | |
c2d11a7d JM |
820 | { |
821 | char *name; | |
4e1c45ea PA |
822 | if (find_pc_partial_function (stop_pc, &name, |
823 | &tp->step_range_start, | |
824 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 825 | error (_("Cannot find bounds of current function")); |
c2d11a7d JM |
826 | |
827 | target_terminal_ours (); | |
a3f17187 | 828 | printf_filtered (_("\ |
c2d11a7d | 829 | Single stepping until exit from function %s, \n\ |
a3f17187 | 830 | which has no line number information.\n"), name); |
c2d11a7d JM |
831 | } |
832 | } | |
833 | else | |
834 | { | |
835 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 836 | tp->step_range_start = tp->step_range_end = 1; |
c2d11a7d JM |
837 | if (!skip_subroutines) |
838 | /* It is stepi. | |
839 | Don't step over function calls, not even to functions lacking | |
840 | line numbers. */ | |
078130d0 | 841 | tp->step_over_calls = STEP_OVER_NONE; |
c2d11a7d JM |
842 | } |
843 | ||
844 | if (skip_subroutines) | |
078130d0 | 845 | tp->step_over_calls = STEP_OVER_ALL; |
c2d11a7d | 846 | |
af679fd0 | 847 | tp->step_multi = (count > 1); |
c2d11a7d JM |
848 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
849 | ||
414c69f7 PA |
850 | if (!target_has_execution |
851 | || !inferior_thread ()->stop_step) | |
c2d11a7d | 852 | break; |
c2d11a7d JM |
853 | } |
854 | ||
f107f563 | 855 | do_cleanups (cleanups); |
c2d11a7d JM |
856 | return; |
857 | } | |
858 | /* In case of asynchronous target things get complicated, do only | |
859 | one step for now, before returning control to the event loop. Let | |
860 | the continuation figure out how many other steps we need to do, | |
861 | and handle them one at the time, through step_once(). */ | |
862 | else | |
863 | { | |
b3dc826b | 864 | step_once (skip_subroutines, single_inst, count, thread); |
611c83ae | 865 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
866 | disable the longjmp breakpoint as appropriate. */ |
867 | discard_cleanups (cleanups); | |
c906108c | 868 | } |
c2d11a7d | 869 | } |
c906108c | 870 | |
bfec99b2 PA |
871 | struct step_1_continuation_args |
872 | { | |
873 | int count; | |
874 | int skip_subroutines; | |
875 | int single_inst; | |
876 | int thread; | |
877 | }; | |
878 | ||
c2d11a7d JM |
879 | /* Called after we are done with one step operation, to check whether |
880 | we need to step again, before we print the prompt and return control | |
881 | to the user. If count is > 1, we will need to do one more call to | |
882 | proceed(), via step_once(). Basically it is like step_once and | |
883 | step_1_continuation are co-recursive. */ | |
884 | static void | |
604ead4a | 885 | step_1_continuation (void *args) |
c2d11a7d | 886 | { |
bfec99b2 | 887 | struct step_1_continuation_args *a = args; |
f13468d9 | 888 | |
af679fd0 | 889 | if (target_has_execution) |
f13468d9 | 890 | { |
af679fd0 PA |
891 | struct thread_info *tp; |
892 | ||
893 | tp = inferior_thread (); | |
414c69f7 | 894 | if (tp->step_multi && tp->stop_step) |
af679fd0 PA |
895 | { |
896 | /* There are more steps to make, and we did stop due to | |
897 | ending a stepping range. Do another step. */ | |
898 | step_once (a->skip_subroutines, a->single_inst, a->count - 1, a->thread); | |
899 | return; | |
900 | } | |
901 | tp->step_multi = 0; | |
f107f563 | 902 | } |
af679fd0 PA |
903 | |
904 | /* We either stopped for some reason that is not stepping, or there | |
905 | are no further steps to make. Cleanup. */ | |
906 | if (!a->single_inst || a->skip_subroutines) | |
907 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
908 | } |
909 | ||
910 | /* Do just one step operation. If count >1 we will have to set up a | |
911 | continuation to be done after the target stops (after this one | |
912 | step). This is useful to implement the 'step n' kind of commands, in | |
913 | case of asynchronous targets. We had to split step_1 into two parts, | |
914 | one to be done before proceed() and one afterwards. This function is | |
915 | called in case of step n with n>1, after the first step operation has | |
916 | been completed.*/ | |
917 | static void | |
611c83ae | 918 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 919 | { |
0d06e24b | 920 | struct frame_info *frame; |
bfec99b2 | 921 | struct step_1_continuation_args *args; |
c2d11a7d JM |
922 | |
923 | if (count > 0) | |
c906108c | 924 | { |
4e1c45ea PA |
925 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
926 | the longjmp breakpoint was not required. Use the | |
927 | INFERIOR_PTID thread instead, which is the same thread when | |
928 | THREAD is set. */ | |
929 | struct thread_info *tp = inferior_thread (); | |
c906108c SS |
930 | clear_proceed_status (); |
931 | ||
932 | frame = get_current_frame (); | |
c5aa993b | 933 | if (!frame) /* Avoid coredump here. Why tho? */ |
8a3fe4f8 | 934 | error (_("No current frame")); |
4e1c45ea | 935 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 936 | |
c5aa993b | 937 | if (!single_inst) |
c906108c | 938 | { |
4e1c45ea PA |
939 | find_pc_line_pc_range (stop_pc, |
940 | &tp->step_range_start, &tp->step_range_end); | |
5fbbeb29 CF |
941 | |
942 | /* If we have no line info, switch to stepi mode. */ | |
4e1c45ea | 943 | if (tp->step_range_end == 0 && step_stop_if_no_debug) |
5fbbeb29 | 944 | { |
4e1c45ea | 945 | tp->step_range_start = tp->step_range_end = 1; |
5fbbeb29 | 946 | } |
4e1c45ea | 947 | else if (tp->step_range_end == 0) |
c906108c SS |
948 | { |
949 | char *name; | |
4e1c45ea PA |
950 | if (find_pc_partial_function (stop_pc, &name, |
951 | &tp->step_range_start, | |
952 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 953 | error (_("Cannot find bounds of current function")); |
c906108c SS |
954 | |
955 | target_terminal_ours (); | |
a3f17187 | 956 | printf_filtered (_("\ |
c906108c | 957 | Single stepping until exit from function %s, \n\ |
a3f17187 | 958 | which has no line number information.\n"), name); |
c906108c SS |
959 | } |
960 | } | |
961 | else | |
962 | { | |
963 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 964 | tp->step_range_start = tp->step_range_end = 1; |
c906108c SS |
965 | if (!skip_subroutines) |
966 | /* It is stepi. | |
967 | Don't step over function calls, not even to functions lacking | |
968 | line numbers. */ | |
078130d0 | 969 | tp->step_over_calls = STEP_OVER_NONE; |
c906108c SS |
970 | } |
971 | ||
972 | if (skip_subroutines) | |
078130d0 | 973 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c | 974 | |
95e54da7 | 975 | tp->step_multi = (count > 1); |
f107f563 | 976 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 PA |
977 | |
978 | args = xmalloc (sizeof (*args)); | |
979 | args->skip_subroutines = skip_subroutines; | |
980 | args->single_inst = single_inst; | |
981 | args->count = count; | |
982 | args->thread = thread; | |
95e54da7 | 983 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); |
c906108c | 984 | } |
c906108c | 985 | } |
c2d11a7d | 986 | |
c906108c SS |
987 | \f |
988 | /* Continue program at specified address. */ | |
989 | ||
990 | static void | |
fba45db2 | 991 | jump_command (char *arg, int from_tty) |
c906108c | 992 | { |
52f0bd74 | 993 | CORE_ADDR addr; |
c906108c SS |
994 | struct symtabs_and_lines sals; |
995 | struct symtab_and_line sal; | |
996 | struct symbol *fn; | |
997 | struct symbol *sfn; | |
43ff13b4 | 998 | int async_exec = 0; |
c5aa993b | 999 | |
c906108c | 1000 | ERROR_NO_INFERIOR; |
94cc34af | 1001 | ensure_not_running (); |
c906108c | 1002 | |
43ff13b4 JM |
1003 | /* Find out whether we must run in the background. */ |
1004 | if (arg != NULL) | |
1005 | async_exec = strip_bg_char (&arg); | |
1006 | ||
1007 | /* If we must run in the background, but the target can't do it, | |
1008 | error out. */ | |
362646f5 | 1009 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1010 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1011 | |
c906108c | 1012 | if (!arg) |
e2e0b3e5 | 1013 | error_no_arg (_("starting address")); |
c906108c SS |
1014 | |
1015 | sals = decode_line_spec_1 (arg, 1); | |
1016 | if (sals.nelts != 1) | |
1017 | { | |
8a3fe4f8 | 1018 | error (_("Unreasonable jump request")); |
c906108c SS |
1019 | } |
1020 | ||
1021 | sal = sals.sals[0]; | |
b8c9b27d | 1022 | xfree (sals.sals); |
c906108c SS |
1023 | |
1024 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1025 | error (_("No source file has been specified.")); |
c906108c | 1026 | |
c5aa993b | 1027 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1028 | |
1029 | /* See if we are trying to jump to another function. */ | |
1030 | fn = get_frame_function (get_current_frame ()); | |
1031 | sfn = find_pc_function (sal.pc); | |
1032 | if (fn != NULL && sfn != fn) | |
1033 | { | |
1034 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, | |
de5ad195 | 1035 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1036 | { |
8a3fe4f8 | 1037 | error (_("Not confirmed.")); |
c906108c SS |
1038 | /* NOTREACHED */ |
1039 | } | |
1040 | } | |
1041 | ||
c5aa993b | 1042 | if (sfn != NULL) |
c906108c SS |
1043 | { |
1044 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1045 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1046 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c SS |
1047 | { |
1048 | if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")) | |
1049 | { | |
8a3fe4f8 | 1050 | error (_("Not confirmed.")); |
c906108c SS |
1051 | /* NOTREACHED */ |
1052 | } | |
1053 | } | |
1054 | } | |
1055 | ||
c906108c SS |
1056 | addr = sal.pc; |
1057 | ||
1058 | if (from_tty) | |
1059 | { | |
a3f17187 | 1060 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1061 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1062 | printf_filtered (".\n"); |
1063 | } | |
1064 | ||
89113898 PA |
1065 | /* If we are not asked to run in the bg, then prepare to run in the |
1066 | foreground, synchronously. */ | |
1067 | if (!async_exec && target_can_async_p ()) | |
1068 | { | |
1069 | /* Simulate synchronous execution */ | |
1070 | async_disable_stdin (); | |
1071 | } | |
1072 | ||
c906108c SS |
1073 | clear_proceed_status (); |
1074 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1075 | } | |
c906108c | 1076 | \f |
c5aa993b | 1077 | |
c906108c SS |
1078 | /* Go to line or address in current procedure */ |
1079 | static void | |
fba45db2 | 1080 | go_command (char *line_no, int from_tty) |
c906108c | 1081 | { |
c5aa993b | 1082 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1083 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1084 | else |
1085 | { | |
b83266a0 SS |
1086 | tbreak_command (line_no, from_tty); |
1087 | jump_command (line_no, from_tty); | |
c906108c SS |
1088 | } |
1089 | } | |
c906108c | 1090 | \f |
c5aa993b | 1091 | |
c906108c SS |
1092 | /* Continue program giving it specified signal. */ |
1093 | ||
1094 | static void | |
fba45db2 | 1095 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1096 | { |
1097 | enum target_signal oursig; | |
32c1e744 | 1098 | int async_exec = 0; |
c906108c SS |
1099 | |
1100 | dont_repeat (); /* Too dangerous. */ | |
1101 | ERROR_NO_INFERIOR; | |
94cc34af | 1102 | ensure_not_running (); |
c906108c | 1103 | |
32c1e744 VP |
1104 | /* Find out whether we must run in the background. */ |
1105 | if (signum_exp != NULL) | |
1106 | async_exec = strip_bg_char (&signum_exp); | |
1107 | ||
1108 | /* If we must run in the background, but the target can't do it, | |
1109 | error out. */ | |
1110 | if (async_exec && !target_can_async_p ()) | |
1111 | error (_("Asynchronous execution not supported on this target.")); | |
1112 | ||
1113 | /* If we are not asked to run in the bg, then prepare to run in the | |
1114 | foreground, synchronously. */ | |
1115 | if (!async_exec && target_can_async_p ()) | |
1116 | { | |
1117 | /* Simulate synchronous execution. */ | |
1118 | async_disable_stdin (); | |
1119 | } | |
1120 | ||
c906108c | 1121 | if (!signum_exp) |
e2e0b3e5 | 1122 | error_no_arg (_("signal number")); |
c906108c SS |
1123 | |
1124 | /* It would be even slicker to make signal names be valid expressions, | |
1125 | (the type could be "enum $signal" or some such), then the user could | |
1126 | assign them to convenience variables. */ | |
1127 | oursig = target_signal_from_name (signum_exp); | |
1128 | ||
1129 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1130 | { | |
1131 | /* No, try numeric. */ | |
bb518678 | 1132 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1133 | |
1134 | if (num == 0) | |
1135 | oursig = TARGET_SIGNAL_0; | |
1136 | else | |
1137 | oursig = target_signal_from_command (num); | |
1138 | } | |
1139 | ||
1140 | if (from_tty) | |
1141 | { | |
1142 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1143 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1144 | else |
a3f17187 | 1145 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1146 | target_signal_to_name (oursig)); |
1147 | } | |
1148 | ||
1149 | clear_proceed_status (); | |
1150 | /* "signal 0" should not get stuck if we are stopped at a breakpoint. | |
1151 | FIXME: Neither should "signal foo" but when I tried passing | |
1152 | (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't | |
1153 | tried to track down yet. */ | |
2acceee2 | 1154 | proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0); |
c906108c SS |
1155 | } |
1156 | ||
c906108c SS |
1157 | /* Proceed until we reach a different source line with pc greater than |
1158 | our current one or exit the function. We skip calls in both cases. | |
1159 | ||
1160 | Note that eventually this command should probably be changed so | |
1161 | that only source lines are printed out when we hit the breakpoint | |
1162 | we set. This may involve changes to wait_for_inferior and the | |
1163 | proceed status code. */ | |
1164 | ||
c906108c | 1165 | static void |
fba45db2 | 1166 | until_next_command (int from_tty) |
c906108c SS |
1167 | { |
1168 | struct frame_info *frame; | |
1169 | CORE_ADDR pc; | |
1170 | struct symbol *func; | |
1171 | struct symtab_and_line sal; | |
4e1c45ea | 1172 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1173 | |
c906108c SS |
1174 | clear_proceed_status (); |
1175 | ||
1176 | frame = get_current_frame (); | |
1177 | ||
1178 | /* Step until either exited from this function or greater | |
1179 | than the current line (if in symbolic section) or pc (if | |
1180 | not). */ | |
1181 | ||
1182 | pc = read_pc (); | |
1183 | func = find_pc_function (pc); | |
c5aa993b | 1184 | |
c906108c SS |
1185 | if (!func) |
1186 | { | |
1187 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1188 | |
c906108c | 1189 | if (msymbol == NULL) |
8a3fe4f8 | 1190 | error (_("Execution is not within a known function.")); |
c5aa993b | 1191 | |
4e1c45ea PA |
1192 | tp->step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1193 | tp->step_range_end = pc; | |
c906108c SS |
1194 | } |
1195 | else | |
1196 | { | |
1197 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1198 | |
4e1c45ea PA |
1199 | tp->step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1200 | tp->step_range_end = sal.end; | |
c906108c | 1201 | } |
c5aa993b | 1202 | |
078130d0 | 1203 | tp->step_over_calls = STEP_OVER_ALL; |
4e1c45ea | 1204 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 1205 | |
af679fd0 | 1206 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1207 | |
2acceee2 | 1208 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1209 | } |
1210 | ||
c5aa993b | 1211 | static void |
fba45db2 | 1212 | until_command (char *arg, int from_tty) |
c906108c | 1213 | { |
43ff13b4 JM |
1214 | int async_exec = 0; |
1215 | ||
c906108c | 1216 | if (!target_has_execution) |
8a3fe4f8 | 1217 | error (_("The program is not running.")); |
43ff13b4 JM |
1218 | |
1219 | /* Find out whether we must run in the background. */ | |
1220 | if (arg != NULL) | |
1221 | async_exec = strip_bg_char (&arg); | |
1222 | ||
1223 | /* If we must run in the background, but the target can't do it, | |
1224 | error out. */ | |
362646f5 | 1225 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1226 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1227 | |
1228 | /* If we are not asked to run in the bg, then prepare to run in the | |
1229 | foreground, synchronously. */ | |
362646f5 | 1230 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1231 | { |
43ff13b4 | 1232 | /* Simulate synchronous execution */ |
6426a772 | 1233 | async_disable_stdin (); |
43ff13b4 JM |
1234 | } |
1235 | ||
c906108c | 1236 | if (arg) |
ae66c1fc | 1237 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1238 | else |
1239 | until_next_command (from_tty); | |
1240 | } | |
ae66c1fc EZ |
1241 | |
1242 | static void | |
1243 | advance_command (char *arg, int from_tty) | |
1244 | { | |
1245 | int async_exec = 0; | |
1246 | ||
1247 | if (!target_has_execution) | |
8a3fe4f8 | 1248 | error (_("The program is not running.")); |
ae66c1fc EZ |
1249 | |
1250 | if (arg == NULL) | |
e2e0b3e5 | 1251 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1252 | |
1253 | /* Find out whether we must run in the background. */ | |
1254 | if (arg != NULL) | |
1255 | async_exec = strip_bg_char (&arg); | |
1256 | ||
1257 | /* If we must run in the background, but the target can't do it, | |
1258 | error out. */ | |
362646f5 | 1259 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1260 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1261 | |
1262 | /* If we are not asked to run in the bg, then prepare to run in the | |
1263 | foreground, synchronously. */ | |
362646f5 | 1264 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1265 | { |
1266 | /* Simulate synchronous execution. */ | |
1267 | async_disable_stdin (); | |
1268 | } | |
1269 | ||
1270 | until_break_command (arg, from_tty, 1); | |
1271 | } | |
c906108c | 1272 | \f |
f941662f MK |
1273 | /* Print the result of a function at the end of a 'finish' command. */ |
1274 | ||
11cf8741 | 1275 | static void |
c055b101 | 1276 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1277 | { |
31db7b6c | 1278 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1279 | struct cleanup *old_chain; |
1280 | struct ui_stream *stb; | |
44e5158b AC |
1281 | struct value *value; |
1282 | ||
181fc57c | 1283 | CHECK_TYPEDEF (value_type); |
44e5158b | 1284 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1285 | |
92ad9cd9 AC |
1286 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1287 | call, it's possible (with no help from the architecture vector) | |
1288 | to locate and return/print a "struct return" value. This is just | |
1289 | a more complicated case of what is already being done in in the | |
1290 | inferior function call code. In fact, when inferior function | |
1291 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1292 | |
c055b101 CV |
1293 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1294 | NULL, NULL, NULL)) | |
44e5158b | 1295 | { |
750eb019 AC |
1296 | case RETURN_VALUE_REGISTER_CONVENTION: |
1297 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1298 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1299 | value = allocate_value (value_type); |
c055b101 | 1300 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1301 | value_contents_raw (value), NULL); |
750eb019 AC |
1302 | break; |
1303 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1304 | value = NULL; | |
1305 | break; | |
1306 | default: | |
e2e0b3e5 | 1307 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1308 | } |
bb472c1e | 1309 | |
31db7b6c MK |
1310 | if (value) |
1311 | { | |
79a45b7d TT |
1312 | struct value_print_options opts; |
1313 | ||
31db7b6c | 1314 | /* Print it. */ |
1d751abe PA |
1315 | stb = ui_out_stream_new (uiout); |
1316 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1317 | ui_out_text (uiout, "Value returned is "); |
1318 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1319 | record_latest_value (value)); | |
1320 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1321 | get_raw_print_options (&opts); |
1322 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1323 | ui_out_field_stream (uiout, "return-value", stb); |
1324 | ui_out_text (uiout, "\n"); | |
1d751abe | 1325 | do_cleanups (old_chain); |
31db7b6c MK |
1326 | } |
1327 | else | |
1328 | { | |
1329 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1330 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1331 | ui_out_text (uiout, "."); | |
1332 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1333 | } |
11cf8741 JM |
1334 | } |
1335 | ||
43ff13b4 | 1336 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1337 | has stopped. In asynchronous mode, we wait for the target to stop |
1338 | in the call to poll or select in the event loop, so it is | |
1339 | impossible to do all the stuff as part of the finish_command | |
1340 | function itself. The only chance we have to complete this command | |
1341 | is in fetch_inferior_event, which is called by the event loop as | |
1342 | soon as it detects that the target has stopped. This function is | |
1343 | called via the cmd_continuation pointer. */ | |
1344 | ||
bfec99b2 | 1345 | struct finish_command_continuation_args |
43ff13b4 | 1346 | { |
43ff13b4 | 1347 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1348 | struct symbol *function; |
1349 | }; | |
c5aa993b | 1350 | |
bfec99b2 | 1351 | static void |
604ead4a | 1352 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1353 | { |
1354 | struct finish_command_continuation_args *a = arg; | |
43ff13b4 | 1355 | |
347bddb7 PA |
1356 | bpstat bs = NULL; |
1357 | ||
1358 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1359 | && target_has_execution | |
1360 | && is_stopped (inferior_ptid)) | |
1361 | bs = inferior_thread ()->stop_bpstat; | |
1362 | ||
1363 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1364 | && a->function != NULL) |
43ff13b4 | 1365 | { |
604ead4a | 1366 | struct type *value_type; |
bfec99b2 | 1367 | |
604ead4a PA |
1368 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1369 | if (!value_type) | |
1370 | internal_error (__FILE__, __LINE__, | |
1371 | _("finish_command: function has no target type")); | |
f5871ec0 | 1372 | |
604ead4a PA |
1373 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
1374 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
43ff13b4 | 1375 | } |
f941662f | 1376 | |
604ead4a PA |
1377 | /* We suppress normal call of normal_stop observer and do it here so |
1378 | that that *stopped notification includes the return value. */ | |
1379 | /* NOTE: This is broken in non-stop mode. There is no guarantee the | |
1380 | next stop will be in the same thread that we started doing a | |
1381 | finish on. This suppressing (or some other replacement means) | |
1382 | should be a thread property. */ | |
347bddb7 | 1383 | observer_notify_normal_stop (bs); |
8f6a8e84 | 1384 | suppress_stop_observer = 0; |
bfec99b2 | 1385 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1386 | } |
1387 | ||
604ead4a PA |
1388 | static void |
1389 | finish_command_continuation_free_arg (void *arg) | |
1390 | { | |
1391 | /* NOTE: See finish_command_continuation. This would go away, if | |
1392 | this suppressing is made a thread property. */ | |
1393 | suppress_stop_observer = 0; | |
1394 | xfree (arg); | |
1395 | } | |
1396 | ||
b2175913 MS |
1397 | /* finish_backward -- helper function for finish_command. */ |
1398 | ||
1399 | static void | |
1400 | finish_backward (struct symbol *function) | |
1401 | { | |
1402 | struct symtab_and_line sal; | |
1403 | struct thread_info *tp = inferior_thread (); | |
1404 | struct breakpoint *breakpoint; | |
1405 | struct cleanup *old_chain; | |
1406 | CORE_ADDR func_addr; | |
1407 | int back_up; | |
1408 | ||
1409 | if (find_pc_partial_function (get_frame_pc (get_current_frame ()), | |
1410 | NULL, &func_addr, NULL) == 0) | |
1411 | internal_error (__FILE__, __LINE__, | |
1412 | _("Finish: couldn't find function.")); | |
1413 | ||
1414 | sal = find_pc_line (func_addr, 0); | |
1415 | ||
1416 | /* We don't need a return value. */ | |
1417 | tp->proceed_to_finish = 0; | |
1418 | /* Special case: if we're sitting at the function entry point, | |
1419 | then all we need to do is take a reverse singlestep. We | |
1420 | don't need to set a breakpoint, and indeed it would do us | |
1421 | no good to do so. | |
1422 | ||
1423 | Note that this can only happen at frame #0, since there's | |
1424 | no way that a function up the stack can have a return address | |
1425 | that's equal to its entry point. */ | |
1426 | ||
1427 | if (sal.pc != read_pc ()) | |
1428 | { | |
1429 | /* Set breakpoint and continue. */ | |
1430 | breakpoint = | |
1431 | set_momentary_breakpoint (sal, | |
1432 | get_frame_id (get_selected_frame (NULL)), | |
1433 | bp_breakpoint); | |
1434 | /* Tell the breakpoint to keep quiet. We won't be done | |
1435 | until we've done another reverse single-step. */ | |
1436 | make_breakpoint_silent (breakpoint); | |
1437 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1438 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1439 | /* We will be stopped when proceed returns. */ | |
1440 | back_up = bpstat_find_breakpoint (tp->stop_bpstat, breakpoint) != NULL; | |
1441 | do_cleanups (old_chain); | |
1442 | } | |
1443 | else | |
1444 | back_up = 1; | |
1445 | if (back_up) | |
1446 | { | |
1447 | /* If in fact we hit the step-resume breakpoint (and not | |
1448 | some other breakpoint), then we're almost there -- | |
1449 | we just need to back up by one more single-step. */ | |
1450 | tp->step_range_start = tp->step_range_end = 1; | |
1451 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1452 | } | |
1453 | return; | |
1454 | } | |
1455 | ||
1456 | /* finish_forward -- helper function for finish_command. */ | |
1457 | ||
1458 | static void | |
1459 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1460 | { | |
1461 | struct symtab_and_line sal; | |
1462 | struct thread_info *tp = inferior_thread (); | |
1463 | struct breakpoint *breakpoint; | |
1464 | struct cleanup *old_chain; | |
1465 | struct finish_command_continuation_args *cargs; | |
1466 | ||
1467 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1468 | sal.pc = get_frame_pc (frame); | |
1469 | ||
1470 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), | |
1471 | bp_finish); | |
1472 | ||
1473 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1474 | ||
1475 | tp->proceed_to_finish = 1; /* We want stop_registers, please... */ | |
1476 | make_cleanup_restore_integer (&suppress_stop_observer); | |
1477 | suppress_stop_observer = 1; | |
1478 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1479 | ||
1480 | cargs = xmalloc (sizeof (*cargs)); | |
1481 | ||
1482 | cargs->breakpoint = breakpoint; | |
1483 | cargs->function = function; | |
1484 | add_continuation (tp, finish_command_continuation, cargs, | |
1485 | finish_command_continuation_free_arg); | |
1486 | ||
1487 | discard_cleanups (old_chain); | |
1488 | if (!target_can_async_p ()) | |
1489 | do_all_continuations (); | |
1490 | } | |
1491 | ||
f941662f MK |
1492 | /* "finish": Set a temporary breakpoint at the place the selected |
1493 | frame will return to, then continue. */ | |
c906108c SS |
1494 | |
1495 | static void | |
fba45db2 | 1496 | finish_command (char *arg, int from_tty) |
c906108c | 1497 | { |
52f0bd74 AC |
1498 | struct frame_info *frame; |
1499 | struct symbol *function; | |
43ff13b4 JM |
1500 | |
1501 | int async_exec = 0; | |
1502 | ||
f941662f | 1503 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1504 | if (arg != NULL) |
1505 | async_exec = strip_bg_char (&arg); | |
1506 | ||
1507 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1508 | error out. */ |
362646f5 | 1509 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1510 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1511 | |
b2175913 MS |
1512 | /* Don't try to async in reverse. */ |
1513 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1514 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1515 | ||
43ff13b4 | 1516 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1517 | foreground, synchronously. */ |
362646f5 | 1518 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1519 | { |
f941662f | 1520 | /* Simulate synchronous execution. */ |
6426a772 | 1521 | async_disable_stdin (); |
43ff13b4 | 1522 | } |
c906108c SS |
1523 | |
1524 | if (arg) | |
8a3fe4f8 | 1525 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1526 | if (!target_has_execution) |
8a3fe4f8 | 1527 | error (_("The program is not running.")); |
c906108c | 1528 | |
206415a3 | 1529 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1530 | if (frame == 0) |
8a3fe4f8 | 1531 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1532 | |
1533 | clear_proceed_status (); | |
1534 | ||
c906108c SS |
1535 | /* Find the function we will return from. */ |
1536 | ||
206415a3 | 1537 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1538 | |
f941662f MK |
1539 | /* Print info on the selected frame, including level number but not |
1540 | source. */ | |
c906108c SS |
1541 | if (from_tty) |
1542 | { | |
b2175913 MS |
1543 | if (execution_direction == EXEC_REVERSE) |
1544 | printf_filtered (_("Run back to call of ")); | |
1545 | else | |
1546 | printf_filtered (_("Run till exit from ")); | |
1547 | ||
b04f3ab4 | 1548 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1549 | } |
1550 | ||
b2175913 MS |
1551 | if (execution_direction == EXEC_REVERSE) |
1552 | finish_backward (function); | |
1553 | else | |
1554 | finish_forward (function, frame); | |
c906108c SS |
1555 | } |
1556 | \f | |
f941662f | 1557 | |
c906108c | 1558 | static void |
fba45db2 | 1559 | program_info (char *args, int from_tty) |
c906108c | 1560 | { |
347bddb7 PA |
1561 | bpstat bs; |
1562 | int num, stat; | |
1563 | struct thread_info *tp; | |
1564 | ptid_t ptid; | |
c5aa993b | 1565 | |
c906108c SS |
1566 | if (!target_has_execution) |
1567 | { | |
a3f17187 | 1568 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1569 | return; |
1570 | } | |
1571 | ||
347bddb7 PA |
1572 | if (non_stop) |
1573 | ptid = inferior_ptid; | |
1574 | else | |
1575 | { | |
1576 | struct target_waitstatus ws; | |
1577 | get_last_target_status (&ptid, &ws); | |
1578 | } | |
1579 | ||
1580 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1581 | error (_("Invalid selected thread.")); | |
1582 | else if (is_running (ptid)) | |
1583 | error (_("Selected thread is running.")); | |
1584 | ||
1585 | tp = find_thread_pid (ptid); | |
1586 | bs = tp->stop_bpstat; | |
1587 | stat = bpstat_num (&bs, &num); | |
1588 | ||
c906108c | 1589 | target_files_info (); |
a3f17187 | 1590 | printf_filtered (_("Program stopped at %s.\n"), |
bb599908 | 1591 | hex_string ((unsigned long) stop_pc)); |
414c69f7 | 1592 | if (tp->stop_step) |
a3f17187 | 1593 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1594 | else if (stat != 0) |
c906108c SS |
1595 | { |
1596 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1597 | isn't as strange as it seems. */ |
8671a17b | 1598 | while (stat != 0) |
c906108c | 1599 | { |
8671a17b | 1600 | if (stat < 0) |
c906108c | 1601 | { |
a3f17187 AC |
1602 | printf_filtered (_("\ |
1603 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1604 | } |
1605 | else | |
a3f17187 | 1606 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1607 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1608 | } |
1609 | } | |
2020b7ab | 1610 | else if (tp->stop_signal != TARGET_SIGNAL_0) |
c906108c | 1611 | { |
a3f17187 | 1612 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2020b7ab PA |
1613 | target_signal_to_name (tp->stop_signal), |
1614 | target_signal_to_string (tp->stop_signal)); | |
c906108c SS |
1615 | } |
1616 | ||
1617 | if (!from_tty) | |
1618 | { | |
a3f17187 AC |
1619 | printf_filtered (_("\ |
1620 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1621 | } |
1622 | } | |
1623 | \f | |
1624 | static void | |
fba45db2 | 1625 | environment_info (char *var, int from_tty) |
c906108c SS |
1626 | { |
1627 | if (var) | |
1628 | { | |
aa1ee363 | 1629 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1630 | if (val) |
1631 | { | |
1632 | puts_filtered (var); | |
1633 | puts_filtered (" = "); | |
1634 | puts_filtered (val); | |
1635 | puts_filtered ("\n"); | |
1636 | } | |
1637 | else | |
1638 | { | |
1639 | puts_filtered ("Environment variable \""); | |
1640 | puts_filtered (var); | |
1641 | puts_filtered ("\" not defined.\n"); | |
1642 | } | |
1643 | } | |
1644 | else | |
1645 | { | |
aa1ee363 | 1646 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1647 | while (*vector) |
1648 | { | |
1649 | puts_filtered (*vector++); | |
1650 | puts_filtered ("\n"); | |
1651 | } | |
1652 | } | |
1653 | } | |
1654 | ||
1655 | static void | |
fba45db2 | 1656 | set_environment_command (char *arg, int from_tty) |
c906108c | 1657 | { |
52f0bd74 | 1658 | char *p, *val, *var; |
c906108c SS |
1659 | int nullset = 0; |
1660 | ||
1661 | if (arg == 0) | |
e2e0b3e5 | 1662 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1663 | |
1664 | /* Find seperation between variable name and value */ | |
1665 | p = (char *) strchr (arg, '='); | |
1666 | val = (char *) strchr (arg, ' '); | |
1667 | ||
1668 | if (p != 0 && val != 0) | |
1669 | { | |
1670 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1671 | equals, walk forward over the spaces til we see a nonspace |
1672 | (possibly the equals). */ | |
c906108c SS |
1673 | if (p > val) |
1674 | while (*val == ' ') | |
1675 | val++; | |
1676 | ||
1677 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1678 | take the char following the spaces. */ |
c906108c SS |
1679 | if (p > val) |
1680 | p = val - 1; | |
1681 | } | |
1682 | else if (val != 0 && p == 0) | |
1683 | p = val; | |
1684 | ||
1685 | if (p == arg) | |
e2e0b3e5 | 1686 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1687 | |
1688 | if (p == 0 || p[1] == 0) | |
1689 | { | |
1690 | nullset = 1; | |
1691 | if (p == 0) | |
1692 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1693 | } | |
1694 | else | |
1695 | { | |
1696 | /* Not setting variable value to null */ | |
1697 | val = p + 1; | |
1698 | while (*val == ' ' || *val == '\t') | |
1699 | val++; | |
1700 | } | |
1701 | ||
c5aa993b JM |
1702 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1703 | p--; | |
c906108c SS |
1704 | |
1705 | var = savestring (arg, p - arg); | |
1706 | if (nullset) | |
1707 | { | |
a3f17187 AC |
1708 | printf_filtered (_("\ |
1709 | Setting environment variable \"%s\" to null value.\n"), | |
1710 | var); | |
c906108c SS |
1711 | set_in_environ (inferior_environ, var, ""); |
1712 | } | |
1713 | else | |
1714 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1715 | xfree (var); |
c906108c SS |
1716 | } |
1717 | ||
1718 | static void | |
fba45db2 | 1719 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1720 | { |
1721 | if (var == 0) | |
1722 | { | |
1723 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1724 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1725 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1726 | { |
1727 | free_environ (inferior_environ); | |
1728 | inferior_environ = make_environ (); | |
1729 | } | |
1730 | } | |
1731 | else | |
1732 | unset_in_environ (inferior_environ, var); | |
1733 | } | |
1734 | ||
1735 | /* Handle the execution path (PATH variable) */ | |
1736 | ||
1737 | static const char path_var_name[] = "PATH"; | |
1738 | ||
c906108c | 1739 | static void |
fba45db2 | 1740 | path_info (char *args, int from_tty) |
c906108c SS |
1741 | { |
1742 | puts_filtered ("Executable and object file path: "); | |
1743 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1744 | puts_filtered ("\n"); | |
1745 | } | |
1746 | ||
1747 | /* Add zero or more directories to the front of the execution path. */ | |
1748 | ||
1749 | static void | |
fba45db2 | 1750 | path_command (char *dirname, int from_tty) |
c906108c SS |
1751 | { |
1752 | char *exec_path; | |
1753 | char *env; | |
1754 | dont_repeat (); | |
1755 | env = get_in_environ (inferior_environ, path_var_name); | |
1756 | /* Can be null if path is not set */ | |
1757 | if (!env) | |
1758 | env = ""; | |
4fcf66da | 1759 | exec_path = xstrdup (env); |
c906108c SS |
1760 | mod_path (dirname, &exec_path); |
1761 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1762 | xfree (exec_path); |
c906108c | 1763 | if (from_tty) |
c5aa993b | 1764 | path_info ((char *) NULL, from_tty); |
c906108c | 1765 | } |
c906108c | 1766 | \f |
c5aa993b | 1767 | |
4782dc19 | 1768 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1769 | registers (print_all == 1) or all non-float and non-vector |
1770 | registers (print_all == 0). | |
c906108c SS |
1771 | |
1772 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1773 | register(s) one per line is good enough. If a different format is |
1774 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1775 | regs), or there is an existing convention for showing all the | |
1776 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1777 | provide that format. */ | |
c906108c | 1778 | |
666e11c5 | 1779 | void |
0ab7a791 AC |
1780 | default_print_registers_info (struct gdbarch *gdbarch, |
1781 | struct ui_file *file, | |
1782 | struct frame_info *frame, | |
1783 | int regnum, int print_all) | |
c906108c | 1784 | { |
0ab7a791 | 1785 | int i; |
a4bd449d UW |
1786 | const int numregs = gdbarch_num_regs (gdbarch) |
1787 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1788 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1789 | |
c906108c SS |
1790 | for (i = 0; i < numregs; i++) |
1791 | { | |
4782dc19 AC |
1792 | /* Decide between printing all regs, non-float / vector regs, or |
1793 | specific reg. */ | |
c5aa993b JM |
1794 | if (regnum == -1) |
1795 | { | |
f9418c0f | 1796 | if (print_all) |
4782dc19 | 1797 | { |
f9418c0f | 1798 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1799 | continue; |
f9418c0f AC |
1800 | } |
1801 | else | |
1802 | { | |
1803 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1804 | continue; |
1805 | } | |
c5aa993b JM |
1806 | } |
1807 | else | |
1808 | { | |
1809 | if (i != regnum) | |
1810 | continue; | |
1811 | } | |
c906108c SS |
1812 | |
1813 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1814 | processor, so don't display anything. */ |
a4bd449d UW |
1815 | if (gdbarch_register_name (gdbarch, i) == NULL |
1816 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1817 | continue; |
1818 | ||
a4bd449d | 1819 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1820 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1821 | (gdbarch, i)), file); |
c906108c SS |
1822 | |
1823 | /* Get the data in raw format. */ | |
9730f241 | 1824 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1825 | { |
0ab7a791 | 1826 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1827 | continue; |
1828 | } | |
1829 | ||
0ab7a791 AC |
1830 | /* If virtual format is floating, print it that way, and in raw |
1831 | hex. */ | |
f949c649 TJB |
1832 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1833 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1834 | { |
0ab7a791 | 1835 | int j; |
79a45b7d | 1836 | struct value_print_options opts; |
c906108c | 1837 | |
79a45b7d TT |
1838 | get_user_print_options (&opts); |
1839 | opts.deref_ref = 1; | |
a4bd449d | 1840 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1841 | file, 0, &opts, current_language); |
c906108c | 1842 | |
0ab7a791 | 1843 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1844 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1845 | { |
0ab7a791 | 1846 | int idx; |
a4bd449d | 1847 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1848 | idx = j; |
1849 | else | |
a4bd449d | 1850 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1851 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1852 | } |
0ab7a791 | 1853 | fprintf_filtered (file, ")"); |
c906108c | 1854 | } |
c906108c SS |
1855 | else |
1856 | { | |
79a45b7d TT |
1857 | struct value_print_options opts; |
1858 | ||
ab4327e0 | 1859 | /* Print the register in hex. */ |
79a45b7d TT |
1860 | get_formatted_print_options (&opts, 'x'); |
1861 | opts.deref_ref = 1; | |
a4bd449d | 1862 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d TT |
1863 | file, 0, &opts, |
1864 | current_language); | |
ab4327e0 EZ |
1865 | /* If not a vector register, print it also according to its |
1866 | natural format. */ | |
a4bd449d | 1867 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1868 | { |
79a45b7d TT |
1869 | get_user_print_options (&opts); |
1870 | opts.deref_ref = 1; | |
9d84ac84 | 1871 | fprintf_filtered (file, "\t"); |
a4bd449d | 1872 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1873 | file, 0, &opts, current_language); |
ab4327e0 | 1874 | } |
c906108c SS |
1875 | } |
1876 | ||
0ab7a791 | 1877 | fprintf_filtered (file, "\n"); |
c906108c SS |
1878 | } |
1879 | } | |
c906108c | 1880 | |
c906108c | 1881 | void |
fba45db2 | 1882 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1883 | { |
206415a3 | 1884 | struct frame_info *frame; |
a4bd449d | 1885 | struct gdbarch *gdbarch; |
c906108c | 1886 | int regnum, numregs; |
52f0bd74 | 1887 | char *end; |
c906108c SS |
1888 | |
1889 | if (!target_has_registers) | |
8a3fe4f8 | 1890 | error (_("The program has no registers now.")); |
206415a3 | 1891 | frame = get_selected_frame (NULL); |
a4bd449d | 1892 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1893 | |
1894 | if (!addr_exp) | |
1895 | { | |
a4bd449d | 1896 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1897 | frame, -1, fpregs); |
c906108c SS |
1898 | return; |
1899 | } | |
1900 | ||
f9418c0f | 1901 | while (*addr_exp != '\0') |
c5aa993b | 1902 | { |
f9418c0f AC |
1903 | char *start; |
1904 | const char *end; | |
c906108c | 1905 | |
f9418c0f AC |
1906 | /* Keep skipping leading white space. */ |
1907 | if (isspace ((*addr_exp))) | |
1908 | { | |
1909 | addr_exp++; | |
1910 | continue; | |
1911 | } | |
c906108c | 1912 | |
f9418c0f AC |
1913 | /* Discard any leading ``$''. Check that there is something |
1914 | resembling a register following it. */ | |
1915 | if (addr_exp[0] == '$') | |
1916 | addr_exp++; | |
1917 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1918 | error (_("Missing register name")); |
c906108c | 1919 | |
f9418c0f AC |
1920 | /* Find the start/end of this register name/num/group. */ |
1921 | start = addr_exp; | |
1922 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1923 | addr_exp++; | |
1924 | end = addr_exp; | |
ad842144 | 1925 | |
f9418c0f AC |
1926 | /* Figure out what we've found and display it. */ |
1927 | ||
1928 | /* A register name? */ | |
1929 | { | |
029a67e4 | 1930 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
f9418c0f AC |
1931 | if (regnum >= 0) |
1932 | { | |
ad842144 MR |
1933 | /* User registers lie completely outside of the range of |
1934 | normal registers. Catch them early so that the target | |
1935 | never sees them. */ | |
1936 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1937 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1938 | { | |
79a45b7d | 1939 | struct value_print_options opts; |
ad842144 MR |
1940 | struct value *val = value_of_user_reg (regnum, frame); |
1941 | ||
1942 | printf_filtered ("%s: ", start); | |
79a45b7d | 1943 | get_formatted_print_options (&opts, 'x'); |
ad842144 MR |
1944 | print_scalar_formatted (value_contents (val), |
1945 | check_typedef (value_type (val)), | |
79a45b7d | 1946 | &opts, 0, gdb_stdout); |
ad842144 MR |
1947 | printf_filtered ("\n"); |
1948 | } | |
1949 | else | |
1950 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1951 | frame, regnum, fpregs); | |
f9418c0f AC |
1952 | continue; |
1953 | } | |
1954 | } | |
ad842144 | 1955 | |
f9418c0f AC |
1956 | /* A register number? (how portable is this one?). */ |
1957 | { | |
1958 | char *endptr; | |
1959 | int regnum = strtol (start, &endptr, 0); | |
1960 | if (endptr == end | |
1961 | && regnum >= 0 | |
a4bd449d UW |
1962 | && regnum < gdbarch_num_regs (gdbarch) |
1963 | + gdbarch_num_pseudo_regs (gdbarch)) | |
f9418c0f | 1964 | { |
a4bd449d | 1965 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1966 | frame, regnum, fpregs); |
f9418c0f AC |
1967 | continue; |
1968 | } | |
1969 | } | |
1970 | ||
1971 | /* A register group? */ | |
1972 | { | |
6c7d17ba | 1973 | struct reggroup *group; |
a4bd449d | 1974 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1975 | group != NULL; |
a4bd449d | 1976 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1977 | { |
1978 | /* Don't bother with a length check. Should the user | |
1979 | enter a short register group name, go with the first | |
1980 | group that matches. */ | |
6c7d17ba | 1981 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1982 | break; |
1983 | } | |
6c7d17ba | 1984 | if (group != NULL) |
f9418c0f AC |
1985 | { |
1986 | int regnum; | |
f57d151a | 1987 | for (regnum = 0; |
a4bd449d UW |
1988 | regnum < gdbarch_num_regs (gdbarch) |
1989 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1990 | regnum++) |
f9418c0f | 1991 | { |
a4bd449d UW |
1992 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1993 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1994 | gdb_stdout, frame, |
f9418c0f AC |
1995 | regnum, fpregs); |
1996 | } | |
1997 | continue; | |
1998 | } | |
1999 | } | |
c906108c | 2000 | |
f9418c0f | 2001 | /* Nothing matched. */ |
8a3fe4f8 | 2002 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2003 | } |
c906108c SS |
2004 | } |
2005 | ||
2006 | void | |
fba45db2 | 2007 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2008 | { |
2009 | registers_info (addr_exp, 1); | |
2010 | } | |
2011 | ||
a58dd373 | 2012 | static void |
fba45db2 | 2013 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2014 | { |
2015 | registers_info (addr_exp, 0); | |
2016 | } | |
e76f1f2e AC |
2017 | |
2018 | static void | |
2019 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
2020 | struct frame_info *frame, const char *args) | |
2021 | { | |
2022 | if (gdbarch_print_vector_info_p (gdbarch)) | |
2023 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2024 | else | |
2025 | { | |
2026 | int regnum; | |
2027 | int printed_something = 0; | |
ab4327e0 | 2028 | |
f57d151a | 2029 | for (regnum = 0; |
a4bd449d UW |
2030 | regnum < gdbarch_num_regs (gdbarch) |
2031 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2032 | regnum++) |
e76f1f2e | 2033 | { |
f9418c0f | 2034 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2035 | { |
2036 | printed_something = 1; | |
e76f1f2e | 2037 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2038 | } |
2039 | } | |
2040 | if (!printed_something) | |
2041 | fprintf_filtered (file, "No vector information\n"); | |
2042 | } | |
2043 | } | |
2044 | ||
2045 | static void | |
2046 | vector_info (char *args, int from_tty) | |
2047 | { | |
206415a3 DJ |
2048 | if (!target_has_registers) |
2049 | error (_("The program has no registers now.")); | |
2050 | ||
2051 | print_vector_info (current_gdbarch, gdb_stdout, | |
2052 | get_selected_frame (NULL), args); | |
e76f1f2e | 2053 | } |
c906108c | 2054 | \f |
c5aa993b | 2055 | |
74531fed PA |
2056 | /* Used in `attach&' command. ARG is a point to an integer |
2057 | representing a process id. Proceed threads of this process iff | |
2058 | they stopped due to debugger request, and when they did, they | |
2059 | reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads | |
2060 | that have been explicitly been told to stop. */ | |
2061 | ||
2062 | static int | |
2063 | proceed_after_attach_callback (struct thread_info *thread, | |
2064 | void *arg) | |
2065 | { | |
2066 | int pid = * (int *) arg; | |
2067 | ||
2068 | if (ptid_get_pid (thread->ptid) == pid | |
2069 | && !is_exited (thread->ptid) | |
2070 | && !is_executing (thread->ptid) | |
2071 | && !thread->stop_requested | |
2072 | && thread->stop_signal == TARGET_SIGNAL_0) | |
2073 | { | |
2074 | switch_to_thread (thread->ptid); | |
2075 | clear_proceed_status (); | |
2076 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2077 | } | |
2078 | ||
2079 | return 0; | |
2080 | } | |
2081 | ||
2082 | static void | |
2083 | proceed_after_attach (int pid) | |
2084 | { | |
2085 | /* Don't error out if the current thread is running, because | |
2086 | there may be other stopped threads. */ | |
2087 | struct cleanup *old_chain; | |
2088 | ||
2089 | /* Backup current thread and selected frame. */ | |
2090 | old_chain = make_cleanup_restore_current_thread (); | |
2091 | ||
2092 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2093 | ||
2094 | /* Restore selected ptid. */ | |
2095 | do_cleanups (old_chain); | |
2096 | } | |
2097 | ||
c906108c SS |
2098 | /* |
2099 | * TODO: | |
2100 | * Should save/restore the tty state since it might be that the | |
2101 | * program to be debugged was started on this tty and it wants | |
2102 | * the tty in some state other than what we want. If it's running | |
2103 | * on another terminal or without a terminal, then saving and | |
2104 | * restoring the tty state is a harmless no-op. | |
2105 | * This only needs to be done if we are attaching to a process. | |
2106 | */ | |
2107 | ||
2108 | /* | |
2109 | attach_command -- | |
2110 | takes a program started up outside of gdb and ``attaches'' to it. | |
2111 | This stops it cold in its tracks and allows us to start debugging it. | |
2112 | and wait for the trace-trap that results from attaching. */ | |
2113 | ||
9356cf8d PA |
2114 | static void |
2115 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2116 | { | |
2117 | char *exec_file; | |
2118 | char *full_exec_path = NULL; | |
d6b48e9c | 2119 | struct inferior *inferior; |
9356cf8d | 2120 | |
d6b48e9c PA |
2121 | inferior = current_inferior (); |
2122 | inferior->stop_soon = NO_STOP_QUIETLY; | |
9356cf8d PA |
2123 | |
2124 | /* If no exec file is yet known, try to determine it from the | |
2125 | process itself. */ | |
2126 | exec_file = (char *) get_exec_file (0); | |
2127 | if (!exec_file) | |
2128 | { | |
2129 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2130 | if (exec_file) | |
2131 | { | |
2132 | /* It's possible we don't have a full path, but rather just a | |
2133 | filename. Some targets, such as HP-UX, don't provide the | |
2134 | full path, sigh. | |
2135 | ||
2136 | Attempt to qualify the filename against the source path. | |
2137 | (If that fails, we'll just fall back on the original | |
2138 | filename. Not much more we can do...) | |
2139 | */ | |
2140 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
2141 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
2142 | ||
2143 | exec_file_attach (full_exec_path, from_tty); | |
2144 | symbol_file_add_main (full_exec_path, from_tty); | |
2145 | } | |
2146 | } | |
2147 | else | |
2148 | { | |
2149 | reopen_exec_file (); | |
2150 | reread_symbols (); | |
2151 | } | |
2152 | ||
2153 | /* Take any necessary post-attaching actions for this platform. */ | |
2154 | target_post_attach (PIDGET (inferior_ptid)); | |
2155 | ||
2156 | post_create_inferior (¤t_target, from_tty); | |
2157 | ||
2158 | /* Install inferior's terminal modes. */ | |
2159 | target_terminal_inferior (); | |
2160 | ||
2161 | if (async_exec) | |
74531fed PA |
2162 | { |
2163 | /* The user requested an `attach&', so be sure to leave threads | |
2164 | that didn't get a signal running. */ | |
2165 | ||
2166 | /* Immediatelly resume all suspended threads of this inferior, | |
2167 | and this inferior only. This should have no effect on | |
2168 | already running threads. If a thread has been stopped with a | |
2169 | signal, leave it be. */ | |
2170 | if (non_stop) | |
2171 | proceed_after_attach (inferior->pid); | |
2172 | else | |
2173 | { | |
2174 | if (inferior_thread ()->stop_signal == TARGET_SIGNAL_0) | |
2175 | { | |
2176 | clear_proceed_status (); | |
2177 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2178 | } | |
2179 | } | |
2180 | } | |
9356cf8d PA |
2181 | else |
2182 | { | |
74531fed PA |
2183 | /* The user requested a plain `attach', so be sure to leave |
2184 | the inferior stopped. */ | |
2185 | ||
9356cf8d PA |
2186 | if (target_can_async_p ()) |
2187 | async_enable_stdin (); | |
74531fed PA |
2188 | |
2189 | /* At least the current thread is already stopped. */ | |
2190 | ||
2191 | /* In all-stop, by definition, all threads have to be already | |
2192 | stopped at this point. In non-stop, however, although the | |
2193 | selected thread is stopped, others may still be executing. | |
2194 | Be sure to explicitly stop all threads of the process. This | |
2195 | should have no effect on already stopped threads. */ | |
2196 | if (non_stop) | |
2197 | target_stop (pid_to_ptid (inferior->pid)); | |
2198 | ||
2199 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2200 | normal_stop (); |
2201 | if (deprecated_attach_hook) | |
2202 | deprecated_attach_hook (); | |
2203 | } | |
2204 | } | |
2205 | ||
bfec99b2 | 2206 | struct attach_command_continuation_args |
9356cf8d PA |
2207 | { |
2208 | char *args; | |
2209 | int from_tty; | |
2210 | int async_exec; | |
bfec99b2 | 2211 | }; |
9356cf8d | 2212 | |
bfec99b2 | 2213 | static void |
604ead4a | 2214 | attach_command_continuation (void *args) |
bfec99b2 PA |
2215 | { |
2216 | struct attach_command_continuation_args *a = args; | |
2217 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); | |
9356cf8d PA |
2218 | } |
2219 | ||
604ead4a PA |
2220 | static void |
2221 | attach_command_continuation_free_args (void *args) | |
2222 | { | |
2223 | struct attach_command_continuation_args *a = args; | |
2224 | xfree (a->args); | |
2225 | xfree (a); | |
2226 | } | |
2227 | ||
c906108c | 2228 | void |
fba45db2 | 2229 | attach_command (char *args, int from_tty) |
c906108c | 2230 | { |
c5aa993b JM |
2231 | char *exec_file; |
2232 | char *full_exec_path = NULL; | |
9356cf8d | 2233 | int async_exec = 0; |
cb0362bb | 2234 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2235 | |
c5aa993b | 2236 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2237 | |
8a305172 PA |
2238 | if (target_supports_multi_process ()) |
2239 | /* Don't complain if we can be attached to multiple processes. */ | |
2240 | ; | |
2241 | else if (target_has_execution) | |
c906108c SS |
2242 | { |
2243 | if (query ("A program is being debugged already. Kill it? ")) | |
2244 | target_kill (); | |
2245 | else | |
8a3fe4f8 | 2246 | error (_("Not killed.")); |
c906108c SS |
2247 | } |
2248 | ||
fd79ecee DJ |
2249 | /* Clean up any leftovers from other runs. Some other things from |
2250 | this function should probably be moved into target_pre_inferior. */ | |
2251 | target_pre_inferior (from_tty); | |
2252 | ||
9908b566 VP |
2253 | if (non_stop && !target_supports_non_stop ()) |
2254 | error (_("Cannot attach to this target in non-stop mode")); | |
2255 | ||
9356cf8d PA |
2256 | if (args) |
2257 | { | |
2258 | async_exec = strip_bg_char (&args); | |
2259 | ||
2260 | /* If we get a request for running in the bg but the target | |
2261 | doesn't support it, error out. */ | |
2262 | if (async_exec && !target_can_async_p ()) | |
2263 | error (_("Asynchronous execution not supported on this target.")); | |
2264 | } | |
2265 | ||
2266 | /* If we don't get a request of running in the bg, then we need | |
2267 | to simulate synchronous (fg) execution. */ | |
2268 | if (!async_exec && target_can_async_p ()) | |
2269 | { | |
2270 | /* Simulate synchronous execution */ | |
2271 | async_disable_stdin (); | |
cb0362bb | 2272 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2273 | } |
2274 | ||
c906108c SS |
2275 | target_attach (args, from_tty); |
2276 | ||
2277 | /* Set up the "saved terminal modes" of the inferior | |
2278 | based on what modes we are starting it with. */ | |
2279 | target_terminal_init (); | |
2280 | ||
c906108c SS |
2281 | /* Set up execution context to know that we should return from |
2282 | wait_for_inferior as soon as the target reports a stop. */ | |
2283 | init_wait_for_inferior (); | |
2284 | clear_proceed_status (); | |
c906108c | 2285 | |
74531fed PA |
2286 | if (non_stop) |
2287 | { | |
2288 | /* If we find that the current thread isn't stopped, explicitly | |
2289 | do so now, because we're going to install breakpoints and | |
2290 | poke at memory. */ | |
2291 | ||
2292 | if (async_exec) | |
2293 | /* The user requested an `attach&'; stop just one thread. */ | |
2294 | target_stop (inferior_ptid); | |
2295 | else | |
2296 | /* The user requested an `attach', so stop all threads of this | |
2297 | inferior. */ | |
2298 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2299 | } | |
2300 | ||
dc177b7a PA |
2301 | /* Some system don't generate traps when attaching to inferior. |
2302 | E.g. Mach 3 or GNU hurd. */ | |
2303 | if (!target_attach_no_wait) | |
c5aa993b | 2304 | { |
d6b48e9c PA |
2305 | struct inferior *inferior = current_inferior (); |
2306 | ||
dc177b7a PA |
2307 | /* Careful here. See comments in inferior.h. Basically some |
2308 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2309 | need a way for handle_inferior_event to reset the stop_signal | |
2310 | variable after an attach, and this is what | |
2311 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
d6b48e9c | 2312 | inferior->stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2313 | |
dc177b7a PA |
2314 | if (target_can_async_p ()) |
2315 | { | |
2316 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2317 | struct attach_command_continuation_args *a; |
2318 | ||
2319 | a = xmalloc (sizeof (*a)); | |
2320 | a->args = xstrdup (args); | |
2321 | a->from_tty = from_tty; | |
2322 | a->async_exec = async_exec; | |
e0ba6746 PA |
2323 | add_inferior_continuation (attach_command_continuation, a, |
2324 | attach_command_continuation_free_args); | |
cb0362bb | 2325 | discard_cleanups (back_to); |
dc177b7a PA |
2326 | return; |
2327 | } | |
c906108c | 2328 | |
dc177b7a PA |
2329 | wait_for_inferior (0); |
2330 | } | |
6426a772 | 2331 | |
9356cf8d | 2332 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2333 | discard_cleanups (back_to); |
c906108c SS |
2334 | } |
2335 | ||
2336 | /* | |
2337 | * detach_command -- | |
2338 | * takes a program previously attached to and detaches it. | |
2339 | * The program resumes execution and will no longer stop | |
2340 | * on signals, etc. We better not have left any breakpoints | |
2341 | * in the program or it'll die when it hits one. For this | |
2342 | * to work, it may be necessary for the process to have been | |
2343 | * previously attached. It *might* work if the program was | |
2344 | * started via the normal ptrace (PTRACE_TRACEME). | |
2345 | */ | |
2346 | ||
2347 | static void | |
fba45db2 | 2348 | detach_command (char *args, int from_tty) |
c906108c | 2349 | { |
1f5d0fc9 | 2350 | dont_repeat (); /* Not for the faint of heart. */ |
c906108c | 2351 | target_detach (args, from_tty); |
50c71eaf PA |
2352 | |
2353 | /* If the solist is global across inferiors, don't clear it when we | |
2354 | detach from a single inferior. */ | |
2355 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2356 | no_shared_libraries (NULL, from_tty); | |
8a305172 PA |
2357 | |
2358 | /* If the current target interface claims there's still execution, | |
2359 | then don't mess with threads of other processes. */ | |
2360 | if (!target_has_execution) | |
2361 | init_thread_list (); | |
2362 | ||
9a4105ab AC |
2363 | if (deprecated_detach_hook) |
2364 | deprecated_detach_hook (); | |
c906108c SS |
2365 | } |
2366 | ||
6ad8ae5c DJ |
2367 | /* Disconnect from the current target without resuming it (leaving it |
2368 | waiting for a debugger). | |
2369 | ||
2370 | We'd better not have left any breakpoints in the program or the | |
2371 | next debugger will get confused. Currently only supported for some | |
2372 | remote targets, since the normal attach mechanisms don't work on | |
2373 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2374 | ||
2375 | static void | |
2376 | disconnect_command (char *args, int from_tty) | |
2377 | { | |
2378 | dont_repeat (); /* Not for the faint of heart */ | |
2379 | target_disconnect (args, from_tty); | |
e85a822c | 2380 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2381 | init_thread_list (); |
9a4105ab AC |
2382 | if (deprecated_detach_hook) |
2383 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2384 | } |
2385 | ||
77ebaa5a VP |
2386 | void |
2387 | interrupt_target_1 (int all_threads) | |
2388 | { | |
2389 | ptid_t ptid; | |
2390 | if (all_threads) | |
2391 | ptid = minus_one_ptid; | |
2392 | else | |
2393 | ptid = inferior_ptid; | |
2394 | target_stop (ptid); | |
252fbfc8 PA |
2395 | |
2396 | /* Tag the thread as having been explicitly requested to stop, so | |
2397 | other parts of gdb know not to resume this thread automatically, | |
2398 | if it was stopped due to an internal event. Limit this to | |
2399 | non-stop mode, as when debugging a multi-threaded application in | |
2400 | all-stop mode, we will only get one stop event --- it's undefined | |
2401 | which thread will report the event. */ | |
2402 | if (non_stop) | |
2403 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2404 | } |
2405 | ||
43ff13b4 | 2406 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2407 | the backgound. In all-stop, stop the whole process. In non-stop |
2408 | mode, stop the current thread only by default, or stop all threads | |
2409 | if the `-a' switch is used. */ | |
2410 | ||
2411 | /* interrupt [-a] */ | |
8b93c638 | 2412 | void |
fba45db2 | 2413 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2414 | { |
362646f5 | 2415 | if (target_can_async_p ()) |
43ff13b4 | 2416 | { |
8cae4b3f PA |
2417 | int all_threads = 0; |
2418 | ||
c5aa993b | 2419 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2420 | |
8cae4b3f PA |
2421 | if (args != NULL |
2422 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2423 | all_threads = 1; | |
2424 | ||
2425 | if (!non_stop && all_threads) | |
2426 | error (_("-a is meaningless in all-stop mode.")); | |
2427 | ||
77ebaa5a | 2428 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2429 | } |
2430 | } | |
2431 | ||
c906108c | 2432 | static void |
23e3a7ac AC |
2433 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2434 | struct frame_info *frame, const char *args) | |
c906108c | 2435 | { |
23e3a7ac AC |
2436 | if (gdbarch_print_float_info_p (gdbarch)) |
2437 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2438 | else | |
2439 | { | |
23e3a7ac AC |
2440 | int regnum; |
2441 | int printed_something = 0; | |
ab4327e0 | 2442 | |
f57d151a | 2443 | for (regnum = 0; |
a4bd449d UW |
2444 | regnum < gdbarch_num_regs (gdbarch) |
2445 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2446 | regnum++) |
23e3a7ac | 2447 | { |
f9418c0f | 2448 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2449 | { |
2450 | printed_something = 1; | |
23e3a7ac | 2451 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2452 | } |
2453 | } | |
2454 | if (!printed_something) | |
2455 | fprintf_filtered (file, "\ | |
2456 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2457 | } |
2458 | } | |
2459 | ||
2460 | static void | |
2461 | float_info (char *args, int from_tty) | |
2462 | { | |
206415a3 DJ |
2463 | if (!target_has_registers) |
2464 | error (_("The program has no registers now.")); | |
2465 | ||
1f5d0fc9 | 2466 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2467 | get_selected_frame (NULL), args); |
c906108c SS |
2468 | } |
2469 | \f | |
c906108c | 2470 | static void |
fba45db2 | 2471 | unset_command (char *args, int from_tty) |
c906108c | 2472 | { |
a3f17187 AC |
2473 | printf_filtered (_("\ |
2474 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2475 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2476 | } | |
2477 | ||
2478 | void | |
fba45db2 | 2479 | _initialize_infcmd (void) |
c906108c | 2480 | { |
3cb3b8df BR |
2481 | struct cmd_list_element *c = NULL; |
2482 | ||
2483 | /* add the filename of the terminal connected to inferior I/O */ | |
2484 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2485 | &inferior_io_terminal, _("\ | |
2486 | Set terminal for future runs of program being debugged."), _("\ | |
2487 | Show terminal for future runs of program being debugged."), _("\ | |
2488 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2489 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2490 | |
b4b4ac0b AC |
2491 | add_setshow_optional_filename_cmd ("args", class_run, |
2492 | &inferior_args, _("\ | |
2493 | Set argument list to give program being debugged when it is started."), _("\ | |
2494 | Show argument list to give program being debugged when it is started."), _("\ | |
2495 | Follow this command with any number of args, to be passed to the program."), | |
2496 | notice_args_set, | |
2497 | notice_args_read, | |
2498 | &setlist, &showlist); | |
c906108c | 2499 | |
1a966eab AC |
2500 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2501 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2502 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2503 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2504 | environment to be given to the program."), &showlist); |
5ba2abeb | 2505 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2506 | |
2507 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2508 | _("Complement to certain \"set\" commands."), |
c906108c | 2509 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2510 | |
1a966eab AC |
2511 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2512 | Cancel environment variable VAR for the program.\n\ | |
2513 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2514 | &unsetlist); |
5ba2abeb | 2515 | set_cmd_completer (c, noop_completer); |
c906108c | 2516 | |
1a966eab AC |
2517 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2518 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2519 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2520 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2521 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2522 | &setlist); |
5ba2abeb | 2523 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2524 | |
1bedd215 AC |
2525 | c = add_com ("path", class_files, path_command, _("\ |
2526 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2527 | $cwd in the path means the current working directory.\n\ |
2528 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2529 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2530 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2531 | set_cmd_completer (c, filename_completer); |
c906108c | 2532 | |
1a966eab AC |
2533 | c = add_cmd ("paths", no_class, path_info, _("\ |
2534 | Current search path for finding object files.\n\ | |
c906108c SS |
2535 | $cwd in the path means the current working directory.\n\ |
2536 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2537 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2538 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2539 | &showlist); |
5ba2abeb | 2540 | set_cmd_completer (c, noop_completer); |
c906108c | 2541 | |
1bedd215 AC |
2542 | add_com ("attach", class_run, attach_command, _("\ |
2543 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2544 | This command attaches to another target, of the same type as your last\n\ |
2545 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2546 | The command may take as argument a process id or a device file.\n\ | |
2547 | For a process id, you must have permission to send the process a signal,\n\ | |
2548 | and it must have the same effective uid as the debugger.\n\ | |
2549 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2550 | program running in the process, looking first in the current working\n\ | |
2551 | directory, or (if not found there) using the source file search path\n\ | |
2552 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2553 | to specify the program, and to load its symbol table.")); |
c906108c | 2554 | |
f73adfeb | 2555 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2556 | Detach a process or file previously attached.\n\ |
c906108c | 2557 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2558 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2559 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2560 | |
1bedd215 AC |
2561 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2562 | Disconnect from a target.\n\ | |
6ad8ae5c | 2563 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2564 | all targets.")); |
6ad8ae5c | 2565 | |
1bedd215 AC |
2566 | add_com ("signal", class_run, signal_command, _("\ |
2567 | Continue program giving it signal specified by the argument.\n\ | |
2568 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2569 | |
1bedd215 AC |
2570 | add_com ("stepi", class_run, stepi_command, _("\ |
2571 | Step one instruction exactly.\n\ | |
2572 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2573 | add_com_alias ("si", "stepi", class_alias, 0); |
2574 | ||
1bedd215 AC |
2575 | add_com ("nexti", class_run, nexti_command, _("\ |
2576 | Step one instruction, but proceed through subroutine calls.\n\ | |
2577 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2578 | add_com_alias ("ni", "nexti", class_alias, 0); |
2579 | ||
1bedd215 AC |
2580 | add_com ("finish", class_run, finish_command, _("\ |
2581 | Execute until selected stack frame returns.\n\ | |
2582 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2583 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2584 | |
1bedd215 AC |
2585 | add_com ("next", class_run, next_command, _("\ |
2586 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2587 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2588 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2589 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2590 | add_com_alias ("n", "next", class_run, 1); |
2591 | if (xdb_commands) | |
c5aa993b | 2592 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2593 | |
1bedd215 AC |
2594 | add_com ("step", class_run, step_command, _("\ |
2595 | Step program until it reaches a different source line.\n\ | |
2596 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2597 | add_com_alias ("s", "step", class_run, 1); |
2598 | ||
1bedd215 AC |
2599 | c = add_com ("until", class_run, until_command, _("\ |
2600 | Execute until the program reaches a source line greater than the current\n\ | |
2601 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2602 | set_cmd_completer (c, location_completer); |
c906108c | 2603 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2604 | |
1bedd215 AC |
2605 | c = add_com ("advance", class_run, advance_command, _("\ |
2606 | Continue the program up to the given location (same form as args for break command).\n\ | |
2607 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2608 | set_cmd_completer (c, location_completer); |
2609 | ||
1bedd215 AC |
2610 | c = add_com ("jump", class_run, jump_command, _("\ |
2611 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2612 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2613 | for an address to start at.")); |
5ba2abeb | 2614 | set_cmd_completer (c, location_completer); |
c906108c | 2615 | |
b83266a0 | 2616 | if (xdb_commands) |
c94fdfd0 | 2617 | { |
1bedd215 AC |
2618 | c = add_com ("go", class_run, go_command, _("\ |
2619 | Usage: go <location>\n\ | |
c906108c SS |
2620 | Continue program being debugged, stopping at specified line or \n\ |
2621 | address.\n\ | |
2622 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2623 | expression for an address to start at.\n\ | |
1bedd215 | 2624 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2625 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2626 | } |
b83266a0 | 2627 | |
c906108c | 2628 | if (xdb_commands) |
c5aa993b | 2629 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2630 | |
8cae4b3f | 2631 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2632 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2633 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2634 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2635 | the breakpoint won't break until the Nth time it is reached).\n\ |
2636 | \n\ | |
2637 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2638 | otherwise all the threads in the program are continued. To \n\ | |
2639 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2640 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2641 | add_com_alias ("c", "cont", class_run, 1); |
2642 | add_com_alias ("fg", "cont", class_run, 1); | |
2643 | ||
1bedd215 AC |
2644 | c = add_com ("run", class_run, run_command, _("\ |
2645 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2646 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2647 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2648 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2649 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2650 | use \"set args\" without arguments.")); |
5ba2abeb | 2651 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2652 | add_com_alias ("r", "run", class_run, 1); |
2653 | if (xdb_commands) | |
2654 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2655 | _("Start debugged program with no arguments.")); |
c906108c | 2656 | |
1bedd215 | 2657 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2658 | Run the debugged program until the beginning of the main procedure.\n\ |
2659 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2660 | \"run\" command.")); |
a4d5f2e0 JB |
2661 | set_cmd_completer (c, filename_completer); |
2662 | ||
700b53b1 | 2663 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2664 | _("Interrupt the execution of the debugged program.\n\ |
2665 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2666 | otherwise all the threads in the program are stopped. To \n\ | |
2667 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2668 | |
1bedd215 AC |
2669 | add_info ("registers", nofp_registers_info, _("\ |
2670 | List of integer registers and their contents, for selected stack frame.\n\ | |
2671 | Register name as argument means describe only that register.")); | |
7194c49b | 2672 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2673 | |
2674 | if (xdb_commands) | |
1bedd215 AC |
2675 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2676 | List of integer registers and their contents, for selected stack frame.\n\ | |
2677 | Register name as argument means describe only that register.")); | |
2678 | add_info ("all-registers", all_registers_info, _("\ | |
2679 | List of all registers and their contents, for selected stack frame.\n\ | |
2680 | Register name as argument means describe only that register.")); | |
c906108c SS |
2681 | |
2682 | add_info ("program", program_info, | |
1bedd215 | 2683 | _("Execution status of the program.")); |
c906108c SS |
2684 | |
2685 | add_info ("float", float_info, | |
1bedd215 | 2686 | _("Print the status of the floating point unit\n")); |
c906108c | 2687 | |
e76f1f2e | 2688 | add_info ("vector", vector_info, |
1bedd215 | 2689 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2690 | |
c906108c SS |
2691 | inferior_environ = make_environ (); |
2692 | init_environ (inferior_environ); | |
2693 | } |