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 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
0fb0cc75 | 5 | 2008, 2009 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <signal.h> | |
24 | #include "gdb_string.h" | |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "frame.h" | |
28 | #include "inferior.h" | |
29 | #include "environ.h" | |
30 | #include "value.h" | |
31 | #include "gdbcmd.h" | |
1adeb98a | 32 | #include "symfile.h" |
c906108c SS |
33 | #include "gdbcore.h" |
34 | #include "target.h" | |
35 | #include "language.h" | |
36 | #include "symfile.h" | |
37 | #include "objfiles.h" | |
c94fdfd0 | 38 | #include "completer.h" |
8b93c638 | 39 | #include "ui-out.h" |
6426a772 | 40 | #include "event-top.h" |
96baa820 | 41 | #include "parser-defs.h" |
36160dc4 | 42 | #include "regcache.h" |
f9418c0f | 43 | #include "reggroups.h" |
fe898f56 | 44 | #include "block.h" |
a77053c2 | 45 | #include "solib.h" |
f9418c0f | 46 | #include <ctype.h> |
92ad9cd9 | 47 | #include "gdb_assert.h" |
281b533b | 48 | #include "observer.h" |
424163ea | 49 | #include "target-descriptions.h" |
ad842144 | 50 | #include "user-regs.h" |
32c1e744 | 51 | #include "exceptions.h" |
700b53b1 | 52 | #include "cli/cli-decode.h" |
a0ef4274 | 53 | #include "gdbthread.h" |
79a45b7d | 54 | #include "valprint.h" |
72cec141 | 55 | |
a58dd373 | 56 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 57 | |
a14ed312 | 58 | void all_registers_info (char *, int); |
c906108c | 59 | |
a14ed312 | 60 | void registers_info (char *, int); |
c906108c | 61 | |
a58dd373 EZ |
62 | void nexti_command (char *, int); |
63 | ||
64 | void stepi_command (char *, int); | |
c906108c | 65 | |
a14ed312 | 66 | void continue_command (char *, int); |
c906108c | 67 | |
a58dd373 EZ |
68 | void interrupt_target_command (char *args, int from_tty); |
69 | ||
70 | /* Local functions: */ | |
71 | ||
72 | static void nofp_registers_info (char *, int); | |
73 | ||
c055b101 CV |
74 | static void print_return_value (struct type *func_type, |
75 | struct type *value_type); | |
11cf8741 | 76 | |
a14ed312 | 77 | static void until_next_command (int); |
c906108c | 78 | |
a14ed312 | 79 | static void until_command (char *, int); |
c906108c | 80 | |
a14ed312 | 81 | static void path_info (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void path_command (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void unset_command (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void float_info (char *, int); |
c906108c | 88 | |
6ad8ae5c DJ |
89 | static void disconnect_command (char *, int); |
90 | ||
a14ed312 | 91 | static void unset_environment_command (char *, int); |
c906108c | 92 | |
a14ed312 | 93 | static void set_environment_command (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void environment_info (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void program_info (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void finish_command (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void signal_command (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void jump_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void step_1 (int, int, char *); |
611c83ae | 106 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
c906108c | 107 | |
a14ed312 | 108 | static void next_command (char *, int); |
c906108c | 109 | |
a14ed312 | 110 | static void step_command (char *, int); |
c906108c | 111 | |
a14ed312 | 112 | static void run_command (char *, int); |
c906108c | 113 | |
a14ed312 | 114 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 115 | |
a14ed312 | 116 | static void go_command (char *line_no, int from_tty); |
392a587b | 117 | |
a14ed312 | 118 | static int strip_bg_char (char **); |
43ff13b4 | 119 | |
a14ed312 | 120 | void _initialize_infcmd (void); |
c906108c | 121 | |
c906108c | 122 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 123 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
124 | |
125 | /* String containing arguments to give to the program, separated by spaces. | |
126 | Empty string (pointer to '\0') means no args. */ | |
127 | ||
128 | static char *inferior_args; | |
129 | ||
552c04a7 TT |
130 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
131 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
132 | ||
133 | static int inferior_argc; | |
134 | static char **inferior_argv; | |
135 | ||
c906108c SS |
136 | /* File name for default use for standard in/out in the inferior. */ |
137 | ||
3cb3b8df | 138 | static char *inferior_io_terminal; |
c906108c SS |
139 | |
140 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
141 | Since various parts of infrun.c test this to see whether there is a program | |
142 | being debugged it should be nonzero (currently 3 is used) for remote | |
143 | debugging. */ | |
144 | ||
39f77062 | 145 | ptid_t inferior_ptid; |
c906108c | 146 | |
c906108c SS |
147 | /* Address at which inferior stopped. */ |
148 | ||
149 | CORE_ADDR stop_pc; | |
150 | ||
c906108c SS |
151 | /* Flag indicating that a command has proceeded the inferior past the |
152 | current breakpoint. */ | |
153 | ||
154 | int breakpoint_proceeded; | |
155 | ||
c906108c SS |
156 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
157 | ||
158 | int stop_stack_dummy; | |
159 | ||
160 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
161 | process. */ | |
162 | ||
163 | int stopped_by_random_signal; | |
164 | ||
c906108c SS |
165 | /* Environment to use for running inferior, |
166 | in format described in environ.h. */ | |
167 | ||
1bf1958d | 168 | struct gdb_environ *inferior_environ; |
c906108c | 169 | \f |
07091751 FN |
170 | /* Accessor routines. */ |
171 | ||
3cb3b8df BR |
172 | void |
173 | set_inferior_io_terminal (const char *terminal_name) | |
174 | { | |
175 | if (inferior_io_terminal) | |
176 | xfree (inferior_io_terminal); | |
177 | ||
178 | if (!terminal_name) | |
179 | inferior_io_terminal = NULL; | |
180 | else | |
1b36a34b | 181 | inferior_io_terminal = xstrdup (terminal_name); |
3cb3b8df BR |
182 | } |
183 | ||
184 | const char * | |
185 | get_inferior_io_terminal (void) | |
186 | { | |
187 | return inferior_io_terminal; | |
188 | } | |
189 | ||
07091751 FN |
190 | char * |
191 | get_inferior_args (void) | |
192 | { | |
552c04a7 TT |
193 | if (inferior_argc != 0) |
194 | { | |
195 | char *n, *old; | |
196 | ||
197 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
198 | inferior_argc, inferior_argv); | |
199 | old = set_inferior_args (n); | |
200 | xfree (old); | |
201 | } | |
202 | ||
203 | if (inferior_args == NULL) | |
204 | inferior_args = xstrdup (""); | |
205 | ||
07091751 FN |
206 | return inferior_args; |
207 | } | |
208 | ||
209 | char * | |
210 | set_inferior_args (char *newargs) | |
211 | { | |
212 | char *saved_args = inferior_args; | |
213 | ||
214 | inferior_args = newargs; | |
552c04a7 TT |
215 | inferior_argc = 0; |
216 | inferior_argv = 0; | |
07091751 FN |
217 | |
218 | return saved_args; | |
219 | } | |
c5aa993b | 220 | |
552c04a7 TT |
221 | void |
222 | set_inferior_args_vector (int argc, char **argv) | |
223 | { | |
224 | inferior_argc = argc; | |
225 | inferior_argv = argv; | |
226 | } | |
227 | ||
228 | /* Notice when `set args' is run. */ | |
229 | static void | |
230 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
231 | { | |
232 | inferior_argc = 0; | |
233 | inferior_argv = 0; | |
234 | } | |
235 | ||
236 | /* Notice when `show args' is run. */ | |
237 | static void | |
b4b4ac0b AC |
238 | notice_args_read (struct ui_file *file, int from_tty, |
239 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 240 | { |
258c00cc TT |
241 | /* Note that we ignore the passed-in value in favor of computing it |
242 | directly. */ | |
243 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
244 | } |
245 | ||
c2a727fa TT |
246 | \f |
247 | /* Compute command-line string given argument vector. This does the | |
248 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
249 | char * |
250 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
251 | { | |
252 | char *result; | |
253 | ||
254 | if (STARTUP_WITH_SHELL) | |
255 | { | |
256 | /* This holds all the characters considered special to the | |
257 | typical Unix shells. We include `^' because the SunOS | |
258 | /bin/sh treats it as a synonym for `|'. */ | |
259 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
260 | int i; | |
261 | int length = 0; | |
262 | char *out, *cp; | |
263 | ||
264 | /* We over-compute the size. It shouldn't matter. */ | |
265 | for (i = 0; i < argc; ++i) | |
c2226152 | 266 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
267 | |
268 | result = (char *) xmalloc (length); | |
269 | out = result; | |
270 | ||
271 | for (i = 0; i < argc; ++i) | |
272 | { | |
273 | if (i > 0) | |
274 | *out++ = ' '; | |
275 | ||
03c6228e AS |
276 | /* Need to handle empty arguments specially. */ |
277 | if (argv[i][0] == '\0') | |
c2a727fa | 278 | { |
03c6228e AS |
279 | *out++ = '\''; |
280 | *out++ = '\''; | |
281 | } | |
282 | else | |
283 | { | |
284 | for (cp = argv[i]; *cp; ++cp) | |
285 | { | |
c2226152 AS |
286 | if (*cp == '\n') |
287 | { | |
288 | /* A newline cannot be quoted with a backslash (it | |
289 | just disappears), only by putting it inside | |
290 | quotes. */ | |
291 | *out++ = '\''; | |
292 | *out++ = '\n'; | |
293 | *out++ = '\''; | |
294 | } | |
295 | else | |
296 | { | |
297 | if (strchr (special, *cp) != NULL) | |
298 | *out++ = '\\'; | |
299 | *out++ = *cp; | |
300 | } | |
03c6228e | 301 | } |
c2a727fa TT |
302 | } |
303 | } | |
304 | *out = '\0'; | |
305 | } | |
306 | else | |
307 | { | |
308 | /* In this case we can't handle arguments that contain spaces, | |
309 | tabs, or newlines -- see breakup_args(). */ | |
310 | int i; | |
311 | int length = 0; | |
312 | ||
313 | for (i = 0; i < argc; ++i) | |
314 | { | |
315 | char *cp = strchr (argv[i], ' '); | |
316 | if (cp == NULL) | |
317 | cp = strchr (argv[i], '\t'); | |
318 | if (cp == NULL) | |
319 | cp = strchr (argv[i], '\n'); | |
320 | if (cp != NULL) | |
8a3fe4f8 | 321 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
322 | length += strlen (argv[i]) + 1; |
323 | } | |
324 | ||
325 | result = (char *) xmalloc (length); | |
326 | result[0] = '\0'; | |
327 | for (i = 0; i < argc; ++i) | |
328 | { | |
329 | if (i > 0) | |
330 | strcat (result, " "); | |
331 | strcat (result, argv[i]); | |
332 | } | |
333 | } | |
334 | ||
335 | return result; | |
336 | } | |
552c04a7 TT |
337 | \f |
338 | ||
43ff13b4 JM |
339 | /* This function detects whether or not a '&' character (indicating |
340 | background execution) has been added as *the last* of the arguments ARGS | |
341 | of a command. If it has, it removes it and returns 1. Otherwise it | |
342 | does nothing and returns 0. */ | |
c5aa993b | 343 | static int |
fba45db2 | 344 | strip_bg_char (char **args) |
43ff13b4 JM |
345 | { |
346 | char *p = NULL; | |
c5aa993b | 347 | |
9846de1b | 348 | p = strchr (*args, '&'); |
c5aa993b | 349 | |
9846de1b | 350 | if (p) |
43ff13b4 JM |
351 | { |
352 | if (p == (*args + strlen (*args) - 1)) | |
353 | { | |
c5aa993b | 354 | if (strlen (*args) > 1) |
43ff13b4 JM |
355 | { |
356 | do | |
357 | p--; | |
358 | while (*p == ' ' || *p == '\t'); | |
359 | *(p + 1) = '\0'; | |
360 | } | |
361 | else | |
362 | *args = 0; | |
363 | return 1; | |
364 | } | |
365 | } | |
366 | return 0; | |
367 | } | |
368 | ||
c906108c | 369 | void |
fba45db2 | 370 | tty_command (char *file, int from_tty) |
c906108c SS |
371 | { |
372 | if (file == 0) | |
e2e0b3e5 | 373 | error_no_arg (_("terminal name for running target process")); |
c906108c | 374 | |
3cb3b8df | 375 | set_inferior_io_terminal (file); |
c906108c SS |
376 | } |
377 | ||
281b533b DJ |
378 | /* Common actions to take after creating any sort of inferior, by any |
379 | means (running, attaching, connecting, et cetera). The target | |
380 | should be stopped. */ | |
381 | ||
382 | void | |
383 | post_create_inferior (struct target_ops *target, int from_tty) | |
384 | { | |
b79599ff DP |
385 | /* Be sure we own the terminal in case write operations are performed. */ |
386 | target_terminal_ours (); | |
387 | ||
424163ea DJ |
388 | /* If the target hasn't taken care of this already, do it now. |
389 | Targets which need to access registers during to_open, | |
390 | to_create_inferior, or to_attach should do it earlier; but many | |
391 | don't need to. */ | |
392 | target_find_description (); | |
393 | ||
f698437e | 394 | /* Now that we know the register layout, retrieve current PC. */ |
fb14de7b | 395 | stop_pc = regcache_read_pc (get_current_regcache ()); |
f698437e | 396 | |
50c71eaf PA |
397 | /* If the solist is global across processes, there's no need to |
398 | refetch it here. */ | |
399 | if (exec_bfd && !gdbarch_has_global_solist (target_gdbarch)) | |
9353355f DJ |
400 | { |
401 | /* Sometimes the platform-specific hook loads initial shared | |
402 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
403 | that we can add them with the correct value for FROM_TTY. |
404 | If we made all the inferior hook methods consistent, | |
405 | this call could be removed. */ | |
9353355f DJ |
406 | #ifdef SOLIB_ADD |
407 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
408 | #else | |
409 | solib_add (NULL, from_tty, target, auto_solib_add); | |
410 | #endif | |
50c71eaf | 411 | } |
9353355f | 412 | |
50c71eaf PA |
413 | if (exec_bfd) |
414 | { | |
9353355f DJ |
415 | /* Create the hooks to handle shared library load and unload |
416 | events. */ | |
417 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 418 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
419 | #else |
420 | solib_create_inferior_hook (); | |
421 | #endif | |
9353355f DJ |
422 | } |
423 | ||
ea5d7a99 PM |
424 | /* If the user sets watchpoints before execution having started, |
425 | then she gets software watchpoints, because GDB can't know which | |
426 | target will end up being pushed, or if it supports hardware | |
427 | watchpoints or not. breakpoint_re_set takes care of promoting | |
428 | watchpoints to hardware watchpoints if possible, however, if this | |
429 | new inferior doesn't load shared libraries or we don't pull in | |
430 | symbols from any other source on this target/arch, | |
431 | breakpoint_re_set is never called. Call it now so that software | |
432 | watchpoints get a chance to be promoted to hardware watchpoints | |
433 | if the now pushed target supports hardware watchpoints. */ | |
434 | breakpoint_re_set (); | |
435 | ||
281b533b DJ |
436 | observer_notify_inferior_created (target, from_tty); |
437 | } | |
438 | ||
a4d5f2e0 JB |
439 | /* Kill the inferior if already running. This function is designed |
440 | to be called when we are about to start the execution of the program | |
441 | from the beginning. Ask the user to confirm that he wants to restart | |
442 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 443 | |
8edfe269 | 444 | static void |
a4d5f2e0 JB |
445 | kill_if_already_running (int from_tty) |
446 | { | |
39f77062 | 447 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 448 | { |
8edfe269 DJ |
449 | /* Bail out before killing the program if we will not be able to |
450 | restart it. */ | |
451 | target_require_runnable (); | |
452 | ||
adf40b2e | 453 | if (from_tty |
9e2f0ad4 HZ |
454 | && !query (_("The program being debugged has been started already.\n\ |
455 | Start it from the beginning? "))) | |
8a3fe4f8 | 456 | error (_("Program not restarted.")); |
c906108c | 457 | target_kill (); |
c906108c | 458 | } |
a4d5f2e0 JB |
459 | } |
460 | ||
f67a969f JB |
461 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
462 | a temporary breakpoint at the begining of the main program before | |
463 | running the program. */ | |
464 | ||
a4d5f2e0 | 465 | static void |
f67a969f | 466 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
467 | { |
468 | char *exec_file; | |
29f49a6a PA |
469 | struct cleanup *old_chain; |
470 | ptid_t ptid; | |
c906108c | 471 | |
a4d5f2e0 JB |
472 | dont_repeat (); |
473 | ||
474 | kill_if_already_running (from_tty); | |
3c35e65b UW |
475 | |
476 | init_wait_for_inferior (); | |
c906108c SS |
477 | clear_breakpoint_hit_counts (); |
478 | ||
fd79ecee DJ |
479 | /* Clean up any leftovers from other runs. Some other things from |
480 | this function should probably be moved into target_pre_inferior. */ | |
481 | target_pre_inferior (from_tty); | |
482 | ||
39ad761d JB |
483 | /* The comment here used to read, "The exec file is re-read every |
484 | time we do a generic_mourn_inferior, so we just have to worry | |
485 | about the symbol file." The `generic_mourn_inferior' function | |
486 | gets called whenever the program exits. However, suppose the | |
487 | program exits, and *then* the executable file changes? We need | |
488 | to check again here. Since reopen_exec_file doesn't do anything | |
489 | if the timestamp hasn't changed, I don't see the harm. */ | |
490 | reopen_exec_file (); | |
c906108c SS |
491 | reread_symbols (); |
492 | ||
f67a969f JB |
493 | /* Insert the temporary breakpoint if a location was specified. */ |
494 | if (tbreak_at_main) | |
495 | tbreak_command (main_name (), 0); | |
496 | ||
39ad761d JB |
497 | exec_file = (char *) get_exec_file (0); |
498 | ||
9908b566 VP |
499 | if (non_stop && !target_supports_non_stop ()) |
500 | error (_("The target does not support running in non-stop mode.")); | |
501 | ||
c906108c SS |
502 | /* We keep symbols from add-symbol-file, on the grounds that the |
503 | user might want to add some symbols before running the program | |
504 | (right?). But sometimes (dynamic loading where the user manually | |
505 | introduces the new symbols with add-symbol-file), the code which | |
506 | the symbols describe does not persist between runs. Currently | |
507 | the user has to manually nuke all symbols between runs if they | |
508 | want them to go away (PR 2207). This is probably reasonable. */ | |
509 | ||
43ff13b4 | 510 | if (!args) |
6426a772 | 511 | { |
362646f5 | 512 | if (target_can_async_p ()) |
6426a772 JM |
513 | async_disable_stdin (); |
514 | } | |
43ff13b4 | 515 | else |
c906108c | 516 | { |
43ff13b4 JM |
517 | int async_exec = strip_bg_char (&args); |
518 | ||
519 | /* If we get a request for running in the bg but the target | |
520 | doesn't support it, error out. */ | |
362646f5 | 521 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 522 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
523 | |
524 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 525 | to simulate synchronous (fg) execution. */ |
362646f5 | 526 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
527 | { |
528 | /* Simulate synchronous execution */ | |
6426a772 | 529 | async_disable_stdin (); |
43ff13b4 JM |
530 | } |
531 | ||
532 | /* If there were other args, beside '&', process them. */ | |
533 | if (args) | |
534 | { | |
07091751 FN |
535 | char *old_args = set_inferior_args (xstrdup (args)); |
536 | xfree (old_args); | |
43ff13b4 | 537 | } |
c906108c SS |
538 | } |
539 | ||
540 | if (from_tty) | |
541 | { | |
8b93c638 JM |
542 | ui_out_field_string (uiout, NULL, "Starting program"); |
543 | ui_out_text (uiout, ": "); | |
544 | if (exec_file) | |
545 | ui_out_field_string (uiout, "execfile", exec_file); | |
546 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
547 | /* We call get_inferior_args() because we might need to compute |
548 | the value now. */ | |
549 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
550 | ui_out_text (uiout, "\n"); |
551 | ui_out_flush (uiout); | |
c906108c SS |
552 | } |
553 | ||
552c04a7 TT |
554 | /* We call get_inferior_args() because we might need to compute |
555 | the value now. */ | |
556 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 557 | environ_vector (inferior_environ), from_tty); |
281b533b | 558 | |
29f49a6a PA |
559 | /* We're starting off a new process. When we get out of here, in |
560 | non-stop mode, finish the state of all threads of that process, | |
561 | but leave other threads alone, as they may be stopped in internal | |
562 | events --- the frontend shouldn't see them as stopped. In | |
563 | all-stop, always finish the state of all threads, as we may be | |
564 | resuming more than just the new process. */ | |
565 | if (non_stop) | |
566 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
567 | else | |
568 | ptid = minus_one_ptid; | |
569 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
570 | ||
de1b3c3d PA |
571 | /* Pass zero for FROM_TTY, because at this point the "run" command |
572 | has done its thing; now we are setting up the running program. */ | |
573 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
574 | |
575 | /* Start the target running. */ | |
576 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c | 577 | |
29f49a6a PA |
578 | /* Since there was no error, there's no need to finish the thread |
579 | states here. */ | |
580 | discard_cleanups (old_chain); | |
581 | } | |
c906108c | 582 | |
f67a969f JB |
583 | static void |
584 | run_command (char *args, int from_tty) | |
585 | { | |
586 | run_command_1 (args, from_tty, 0); | |
587 | } | |
588 | ||
c906108c | 589 | static void |
fba45db2 | 590 | run_no_args_command (char *args, int from_tty) |
c906108c | 591 | { |
07091751 FN |
592 | char *old_args = set_inferior_args (xstrdup ("")); |
593 | xfree (old_args); | |
c906108c | 594 | } |
c906108c | 595 | \f |
c5aa993b | 596 | |
a4d5f2e0 JB |
597 | /* Start the execution of the program up until the beginning of the main |
598 | program. */ | |
599 | ||
600 | static void | |
601 | start_command (char *args, int from_tty) | |
602 | { | |
603 | /* Some languages such as Ada need to search inside the program | |
604 | minimal symbols for the location where to put the temporary | |
605 | breakpoint before starting. */ | |
606 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 607 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 608 | |
f67a969f JB |
609 | /* Run the program until reaching the main procedure... */ |
610 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
611 | } |
612 | ||
8cae4b3f PA |
613 | static int |
614 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
615 | { | |
74531fed PA |
616 | /* We go through all threads individually instead of compressing |
617 | into a single target `resume_all' request, because some threads | |
618 | may be stopped in internal breakpoints/events, or stopped waiting | |
619 | for its turn in the displaced stepping queue (that is, they are | |
620 | running && !executing). The target side has no idea about why | |
621 | the thread is stopped, so a `resume_all' command would resume too | |
622 | much. If/when GDB gains a way to tell the target `hold this | |
623 | thread stopped until I say otherwise', then we can optimize | |
624 | this. */ | |
4f8d22e3 | 625 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
626 | return 0; |
627 | ||
dcf4fbde | 628 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
629 | clear_proceed_status (); |
630 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
631 | return 0; | |
632 | } | |
633 | ||
d729566a PA |
634 | void |
635 | ensure_valid_thread (void) | |
636 | { | |
637 | if (ptid_equal (inferior_ptid, null_ptid) | |
638 | || is_exited (inferior_ptid)) | |
639 | error (_("\ | |
640 | Cannot execute this command without a live selected thread.")); | |
641 | } | |
642 | ||
77ebaa5a VP |
643 | void |
644 | continue_1 (int all_threads) | |
645 | { | |
3d488bfc PA |
646 | ERROR_NO_INFERIOR; |
647 | ||
77ebaa5a VP |
648 | if (non_stop && all_threads) |
649 | { | |
650 | /* Don't error out if the current thread is running, because | |
651 | there may be other stopped threads. */ | |
652 | struct cleanup *old_chain; | |
653 | ||
654 | /* Backup current thread and selected frame. */ | |
655 | old_chain = make_cleanup_restore_current_thread (); | |
656 | ||
657 | iterate_over_threads (proceed_thread_callback, NULL); | |
658 | ||
659 | /* Restore selected ptid. */ | |
660 | do_cleanups (old_chain); | |
661 | } | |
662 | else | |
663 | { | |
d729566a | 664 | ensure_valid_thread (); |
77ebaa5a VP |
665 | ensure_not_running (); |
666 | clear_proceed_status (); | |
667 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
668 | } | |
669 | } | |
670 | ||
8cae4b3f | 671 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 672 | void |
8cae4b3f | 673 | continue_command (char *args, int from_tty) |
c906108c | 674 | { |
c5aa993b | 675 | int async_exec = 0; |
8cae4b3f | 676 | int all_threads = 0; |
c906108c SS |
677 | ERROR_NO_INFERIOR; |
678 | ||
43ff13b4 | 679 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
680 | if (args != NULL) |
681 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
682 | |
683 | /* If we must run in the background, but the target can't do it, | |
684 | error out. */ | |
362646f5 | 685 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 686 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
687 | |
688 | /* If we are not asked to run in the bg, then prepare to run in the | |
689 | foreground, synchronously. */ | |
362646f5 | 690 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 691 | { |
43ff13b4 | 692 | /* Simulate synchronous execution */ |
6426a772 | 693 | async_disable_stdin (); |
43ff13b4 | 694 | } |
c906108c | 695 | |
8cae4b3f PA |
696 | if (args != NULL) |
697 | { | |
698 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
699 | { | |
700 | all_threads = 1; | |
701 | args += sizeof ("-a") - 1; | |
702 | if (*args == '\0') | |
703 | args = NULL; | |
704 | } | |
705 | } | |
706 | ||
707 | if (!non_stop && all_threads) | |
708 | error (_("`-a' is meaningless in all-stop mode.")); | |
709 | ||
710 | if (args != NULL && all_threads) | |
711 | error (_("\ | |
712 | Can't resume all threads and specify proceed count simultaneously.")); | |
713 | ||
714 | /* If we have an argument left, set proceed count of breakpoint we | |
715 | stopped at. */ | |
716 | if (args != NULL) | |
c906108c | 717 | { |
347bddb7 | 718 | bpstat bs = NULL; |
8671a17b PA |
719 | int num, stat; |
720 | int stopped = 0; | |
347bddb7 PA |
721 | struct thread_info *tp; |
722 | ||
723 | if (non_stop) | |
e09875d4 | 724 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
725 | else |
726 | { | |
727 | ptid_t last_ptid; | |
728 | struct target_waitstatus ws; | |
729 | ||
730 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 731 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
732 | } |
733 | if (tp != NULL) | |
734 | bs = tp->stop_bpstat; | |
8671a17b PA |
735 | |
736 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
737 | if (stat > 0) | |
738 | { | |
739 | set_ignore_count (num, | |
8cae4b3f | 740 | parse_and_eval_long (args) - 1, |
8671a17b PA |
741 | from_tty); |
742 | /* set_ignore_count prints a message ending with a period. | |
743 | So print two spaces before "Continuing.". */ | |
744 | if (from_tty) | |
745 | printf_filtered (" "); | |
746 | stopped = 1; | |
747 | } | |
748 | ||
749 | if (!stopped && from_tty) | |
c906108c SS |
750 | { |
751 | printf_filtered | |
752 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
753 | } | |
c906108c SS |
754 | } |
755 | ||
756 | if (from_tty) | |
a3f17187 | 757 | printf_filtered (_("Continuing.\n")); |
c906108c | 758 | |
77ebaa5a | 759 | continue_1 (all_threads); |
c906108c SS |
760 | } |
761 | \f | |
762 | /* Step until outside of current statement. */ | |
763 | ||
c906108c | 764 | static void |
fba45db2 | 765 | step_command (char *count_string, int from_tty) |
c906108c SS |
766 | { |
767 | step_1 (0, 0, count_string); | |
768 | } | |
769 | ||
770 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
771 | ||
c906108c | 772 | static void |
fba45db2 | 773 | next_command (char *count_string, int from_tty) |
c906108c SS |
774 | { |
775 | step_1 (1, 0, count_string); | |
776 | } | |
777 | ||
778 | /* Likewise, but step only one instruction. */ | |
779 | ||
c906108c | 780 | void |
fba45db2 | 781 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
782 | { |
783 | step_1 (0, 1, count_string); | |
784 | } | |
785 | ||
c906108c | 786 | void |
fba45db2 | 787 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
788 | { |
789 | step_1 (1, 1, count_string); | |
790 | } | |
791 | ||
74b7792f | 792 | static void |
611c83ae | 793 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 794 | { |
611c83ae PA |
795 | int thread = * (int *) arg; |
796 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
797 | } |
798 | ||
c906108c | 799 | static void |
fba45db2 | 800 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 801 | { |
52f0bd74 | 802 | int count = 1; |
c906108c | 803 | struct frame_info *frame; |
f107f563 | 804 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 805 | int async_exec = 0; |
b3dc826b | 806 | int thread = -1; |
c5aa993b | 807 | |
c906108c | 808 | ERROR_NO_INFERIOR; |
d729566a | 809 | ensure_valid_thread (); |
94cc34af | 810 | ensure_not_running (); |
43ff13b4 JM |
811 | |
812 | if (count_string) | |
813 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 814 | |
43ff13b4 JM |
815 | /* If we get a request for running in the bg but the target |
816 | doesn't support it, error out. */ | |
362646f5 | 817 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 818 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
819 | |
820 | /* If we don't get a request of running in the bg, then we need | |
821 | to simulate synchronous (fg) execution. */ | |
362646f5 | 822 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
823 | { |
824 | /* Simulate synchronous execution */ | |
6426a772 | 825 | async_disable_stdin (); |
43ff13b4 JM |
826 | } |
827 | ||
bb518678 | 828 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 829 | |
c5aa993b | 830 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 831 | { |
611c83ae | 832 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 833 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
834 | |
835 | set_longjmp_breakpoint (); | |
836 | ||
b3dc826b | 837 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
838 | } |
839 | ||
37d94800 | 840 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 841 | if (!target_can_async_p ()) |
c2d11a7d JM |
842 | { |
843 | for (; count > 0; count--) | |
844 | { | |
37d94800 PA |
845 | struct thread_info *tp; |
846 | step_once (skip_subroutines, single_inst, count, thread); | |
c2d11a7d | 847 | |
37d94800 PA |
848 | if (target_has_execution |
849 | && !ptid_equal (inferior_ptid, null_ptid)) | |
850 | tp = inferior_thread (); | |
c2d11a7d | 851 | else |
37d94800 PA |
852 | tp = NULL; |
853 | ||
854 | if (!tp || !tp->stop_step || !tp->step_multi) | |
c2d11a7d | 855 | { |
37d94800 PA |
856 | /* If we stopped for some reason that is not stepping |
857 | there are no further steps to make. */ | |
858 | if (tp) | |
859 | tp->step_multi = 0; | |
860 | break; | |
c2d11a7d | 861 | } |
c2d11a7d JM |
862 | } |
863 | ||
f107f563 | 864 | do_cleanups (cleanups); |
c2d11a7d | 865 | } |
c2d11a7d JM |
866 | else |
867 | { | |
37d94800 PA |
868 | /* In the case of an asynchronous target things get complicated; |
869 | do only one step for now, before returning control to the | |
870 | event loop. Let the continuation figure out how many other | |
871 | steps we need to do, and handle them one at the time, through | |
872 | step_once. */ | |
b3dc826b | 873 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 874 | |
611c83ae | 875 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
876 | disable the longjmp breakpoint as appropriate. */ |
877 | discard_cleanups (cleanups); | |
c906108c | 878 | } |
c2d11a7d | 879 | } |
c906108c | 880 | |
bfec99b2 PA |
881 | struct step_1_continuation_args |
882 | { | |
883 | int count; | |
884 | int skip_subroutines; | |
885 | int single_inst; | |
886 | int thread; | |
887 | }; | |
888 | ||
c2d11a7d JM |
889 | /* Called after we are done with one step operation, to check whether |
890 | we need to step again, before we print the prompt and return control | |
891 | to the user. If count is > 1, we will need to do one more call to | |
892 | proceed(), via step_once(). Basically it is like step_once and | |
893 | step_1_continuation are co-recursive. */ | |
894 | static void | |
604ead4a | 895 | step_1_continuation (void *args) |
c2d11a7d | 896 | { |
bfec99b2 | 897 | struct step_1_continuation_args *a = args; |
f13468d9 | 898 | |
af679fd0 | 899 | if (target_has_execution) |
f13468d9 | 900 | { |
af679fd0 PA |
901 | struct thread_info *tp; |
902 | ||
903 | tp = inferior_thread (); | |
414c69f7 | 904 | if (tp->step_multi && tp->stop_step) |
af679fd0 PA |
905 | { |
906 | /* There are more steps to make, and we did stop due to | |
907 | ending a stepping range. Do another step. */ | |
37d94800 PA |
908 | step_once (a->skip_subroutines, a->single_inst, |
909 | a->count - 1, a->thread); | |
af679fd0 PA |
910 | return; |
911 | } | |
912 | tp->step_multi = 0; | |
f107f563 | 913 | } |
af679fd0 PA |
914 | |
915 | /* We either stopped for some reason that is not stepping, or there | |
916 | are no further steps to make. Cleanup. */ | |
917 | if (!a->single_inst || a->skip_subroutines) | |
918 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
919 | } |
920 | ||
37d94800 PA |
921 | /* Do just one step operation. This is useful to implement the 'step |
922 | n' kind of commands. In case of asynchronous targets, we will have | |
923 | to set up a continuation to be done after the target stops (after | |
924 | this one step). For synch targets, the caller handles further | |
925 | stepping. */ | |
926 | ||
927 | static void | |
611c83ae | 928 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 929 | { |
0d06e24b | 930 | struct frame_info *frame; |
c2d11a7d JM |
931 | |
932 | if (count > 0) | |
c906108c | 933 | { |
4e1c45ea PA |
934 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
935 | the longjmp breakpoint was not required. Use the | |
936 | INFERIOR_PTID thread instead, which is the same thread when | |
937 | THREAD is set. */ | |
938 | struct thread_info *tp = inferior_thread (); | |
c906108c SS |
939 | clear_proceed_status (); |
940 | ||
941 | frame = get_current_frame (); | |
4e1c45ea | 942 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 943 | |
c5aa993b | 944 | if (!single_inst) |
c906108c | 945 | { |
1641cfcc PA |
946 | CORE_ADDR pc; |
947 | ||
948 | pc = get_frame_pc (frame); | |
949 | find_pc_line_pc_range (pc, | |
4e1c45ea | 950 | &tp->step_range_start, &tp->step_range_end); |
5fbbeb29 CF |
951 | |
952 | /* If we have no line info, switch to stepi mode. */ | |
4e1c45ea | 953 | if (tp->step_range_end == 0 && step_stop_if_no_debug) |
5fbbeb29 | 954 | { |
4e1c45ea | 955 | tp->step_range_start = tp->step_range_end = 1; |
5fbbeb29 | 956 | } |
4e1c45ea | 957 | else if (tp->step_range_end == 0) |
c906108c SS |
958 | { |
959 | char *name; | |
1641cfcc | 960 | if (find_pc_partial_function (pc, &name, |
4e1c45ea PA |
961 | &tp->step_range_start, |
962 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 963 | error (_("Cannot find bounds of current function")); |
c906108c SS |
964 | |
965 | target_terminal_ours (); | |
a3f17187 | 966 | printf_filtered (_("\ |
c906108c | 967 | Single stepping until exit from function %s, \n\ |
a3f17187 | 968 | which has no line number information.\n"), name); |
c906108c SS |
969 | } |
970 | } | |
971 | else | |
972 | { | |
973 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 974 | tp->step_range_start = tp->step_range_end = 1; |
c906108c SS |
975 | if (!skip_subroutines) |
976 | /* It is stepi. | |
977 | Don't step over function calls, not even to functions lacking | |
978 | line numbers. */ | |
078130d0 | 979 | tp->step_over_calls = STEP_OVER_NONE; |
c906108c SS |
980 | } |
981 | ||
982 | if (skip_subroutines) | |
078130d0 | 983 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c | 984 | |
95e54da7 | 985 | tp->step_multi = (count > 1); |
f107f563 | 986 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 | 987 | |
37d94800 PA |
988 | /* For async targets, register a continuation to do any |
989 | additional steps. For sync targets, the caller will handle | |
990 | further stepping. */ | |
991 | if (target_can_async_p ()) | |
992 | { | |
993 | struct step_1_continuation_args *args; | |
994 | ||
995 | args = xmalloc (sizeof (*args)); | |
996 | args->skip_subroutines = skip_subroutines; | |
997 | args->single_inst = single_inst; | |
998 | args->count = count; | |
999 | args->thread = thread; | |
1000 | ||
1001 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1002 | } | |
c906108c | 1003 | } |
c906108c | 1004 | } |
c2d11a7d | 1005 | |
c906108c SS |
1006 | \f |
1007 | /* Continue program at specified address. */ | |
1008 | ||
1009 | static void | |
fba45db2 | 1010 | jump_command (char *arg, int from_tty) |
c906108c | 1011 | { |
52f0bd74 | 1012 | CORE_ADDR addr; |
c906108c SS |
1013 | struct symtabs_and_lines sals; |
1014 | struct symtab_and_line sal; | |
1015 | struct symbol *fn; | |
1016 | struct symbol *sfn; | |
43ff13b4 | 1017 | int async_exec = 0; |
c5aa993b | 1018 | |
c906108c | 1019 | ERROR_NO_INFERIOR; |
d729566a | 1020 | ensure_valid_thread (); |
94cc34af | 1021 | ensure_not_running (); |
c906108c | 1022 | |
43ff13b4 JM |
1023 | /* Find out whether we must run in the background. */ |
1024 | if (arg != NULL) | |
1025 | async_exec = strip_bg_char (&arg); | |
1026 | ||
1027 | /* If we must run in the background, but the target can't do it, | |
1028 | error out. */ | |
362646f5 | 1029 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1030 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1031 | |
c906108c | 1032 | if (!arg) |
e2e0b3e5 | 1033 | error_no_arg (_("starting address")); |
c906108c SS |
1034 | |
1035 | sals = decode_line_spec_1 (arg, 1); | |
1036 | if (sals.nelts != 1) | |
1037 | { | |
8a3fe4f8 | 1038 | error (_("Unreasonable jump request")); |
c906108c SS |
1039 | } |
1040 | ||
1041 | sal = sals.sals[0]; | |
b8c9b27d | 1042 | xfree (sals.sals); |
c906108c SS |
1043 | |
1044 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1045 | error (_("No source file has been specified.")); |
c906108c | 1046 | |
c5aa993b | 1047 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1048 | |
1049 | /* See if we are trying to jump to another function. */ | |
1050 | fn = get_frame_function (get_current_frame ()); | |
1051 | sfn = find_pc_function (sal.pc); | |
1052 | if (fn != NULL && sfn != fn) | |
1053 | { | |
9e2f0ad4 | 1054 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1055 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1056 | { |
8a3fe4f8 | 1057 | error (_("Not confirmed.")); |
c906108c SS |
1058 | /* NOTREACHED */ |
1059 | } | |
1060 | } | |
1061 | ||
c5aa993b | 1062 | if (sfn != NULL) |
c906108c SS |
1063 | { |
1064 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1065 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1066 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1067 | { |
9e2f0ad4 | 1068 | if (!query (_("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))) |
c906108c | 1069 | { |
8a3fe4f8 | 1070 | error (_("Not confirmed.")); |
c906108c SS |
1071 | /* NOTREACHED */ |
1072 | } | |
1073 | } | |
1074 | } | |
1075 | ||
c906108c SS |
1076 | addr = sal.pc; |
1077 | ||
1078 | if (from_tty) | |
1079 | { | |
a3f17187 | 1080 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1081 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1082 | printf_filtered (".\n"); |
1083 | } | |
1084 | ||
89113898 PA |
1085 | /* If we are not asked to run in the bg, then prepare to run in the |
1086 | foreground, synchronously. */ | |
1087 | if (!async_exec && target_can_async_p ()) | |
1088 | { | |
1089 | /* Simulate synchronous execution */ | |
1090 | async_disable_stdin (); | |
1091 | } | |
1092 | ||
c906108c SS |
1093 | clear_proceed_status (); |
1094 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1095 | } | |
c906108c | 1096 | \f |
c5aa993b | 1097 | |
c906108c SS |
1098 | /* Go to line or address in current procedure */ |
1099 | static void | |
fba45db2 | 1100 | go_command (char *line_no, int from_tty) |
c906108c | 1101 | { |
c5aa993b | 1102 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1103 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1104 | else |
1105 | { | |
b83266a0 SS |
1106 | tbreak_command (line_no, from_tty); |
1107 | jump_command (line_no, from_tty); | |
c906108c SS |
1108 | } |
1109 | } | |
c906108c | 1110 | \f |
c5aa993b | 1111 | |
c906108c SS |
1112 | /* Continue program giving it specified signal. */ |
1113 | ||
1114 | static void | |
fba45db2 | 1115 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1116 | { |
1117 | enum target_signal oursig; | |
32c1e744 | 1118 | int async_exec = 0; |
c906108c SS |
1119 | |
1120 | dont_repeat (); /* Too dangerous. */ | |
1121 | ERROR_NO_INFERIOR; | |
d729566a | 1122 | ensure_valid_thread (); |
94cc34af | 1123 | ensure_not_running (); |
c906108c | 1124 | |
32c1e744 VP |
1125 | /* Find out whether we must run in the background. */ |
1126 | if (signum_exp != NULL) | |
1127 | async_exec = strip_bg_char (&signum_exp); | |
1128 | ||
1129 | /* If we must run in the background, but the target can't do it, | |
1130 | error out. */ | |
1131 | if (async_exec && !target_can_async_p ()) | |
1132 | error (_("Asynchronous execution not supported on this target.")); | |
1133 | ||
1134 | /* If we are not asked to run in the bg, then prepare to run in the | |
1135 | foreground, synchronously. */ | |
1136 | if (!async_exec && target_can_async_p ()) | |
1137 | { | |
1138 | /* Simulate synchronous execution. */ | |
1139 | async_disable_stdin (); | |
1140 | } | |
1141 | ||
c906108c | 1142 | if (!signum_exp) |
e2e0b3e5 | 1143 | error_no_arg (_("signal number")); |
c906108c SS |
1144 | |
1145 | /* It would be even slicker to make signal names be valid expressions, | |
1146 | (the type could be "enum $signal" or some such), then the user could | |
1147 | assign them to convenience variables. */ | |
1148 | oursig = target_signal_from_name (signum_exp); | |
1149 | ||
1150 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1151 | { | |
1152 | /* No, try numeric. */ | |
bb518678 | 1153 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1154 | |
1155 | if (num == 0) | |
1156 | oursig = TARGET_SIGNAL_0; | |
1157 | else | |
1158 | oursig = target_signal_from_command (num); | |
1159 | } | |
1160 | ||
1161 | if (from_tty) | |
1162 | { | |
1163 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1164 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1165 | else |
a3f17187 | 1166 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1167 | target_signal_to_name (oursig)); |
1168 | } | |
1169 | ||
1170 | clear_proceed_status (); | |
a12cc160 | 1171 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1172 | } |
1173 | ||
c906108c SS |
1174 | /* Proceed until we reach a different source line with pc greater than |
1175 | our current one or exit the function. We skip calls in both cases. | |
1176 | ||
1177 | Note that eventually this command should probably be changed so | |
1178 | that only source lines are printed out when we hit the breakpoint | |
1179 | we set. This may involve changes to wait_for_inferior and the | |
1180 | proceed status code. */ | |
1181 | ||
c906108c | 1182 | static void |
fba45db2 | 1183 | until_next_command (int from_tty) |
c906108c SS |
1184 | { |
1185 | struct frame_info *frame; | |
1186 | CORE_ADDR pc; | |
1187 | struct symbol *func; | |
1188 | struct symtab_and_line sal; | |
4e1c45ea | 1189 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1190 | |
c906108c SS |
1191 | clear_proceed_status (); |
1192 | ||
1193 | frame = get_current_frame (); | |
1194 | ||
1195 | /* Step until either exited from this function or greater | |
1196 | than the current line (if in symbolic section) or pc (if | |
1197 | not). */ | |
1198 | ||
1c7819ef | 1199 | pc = get_frame_pc (frame); |
c906108c | 1200 | func = find_pc_function (pc); |
c5aa993b | 1201 | |
c906108c SS |
1202 | if (!func) |
1203 | { | |
1204 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1205 | |
c906108c | 1206 | if (msymbol == NULL) |
8a3fe4f8 | 1207 | error (_("Execution is not within a known function.")); |
c5aa993b | 1208 | |
4e1c45ea PA |
1209 | tp->step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1210 | tp->step_range_end = pc; | |
c906108c SS |
1211 | } |
1212 | else | |
1213 | { | |
1214 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1215 | |
4e1c45ea PA |
1216 | tp->step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1217 | tp->step_range_end = sal.end; | |
c906108c | 1218 | } |
c5aa993b | 1219 | |
078130d0 | 1220 | tp->step_over_calls = STEP_OVER_ALL; |
4e1c45ea | 1221 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 1222 | |
af679fd0 | 1223 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1224 | |
2acceee2 | 1225 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1226 | } |
1227 | ||
c5aa993b | 1228 | static void |
fba45db2 | 1229 | until_command (char *arg, int from_tty) |
c906108c | 1230 | { |
43ff13b4 JM |
1231 | int async_exec = 0; |
1232 | ||
c906108c | 1233 | if (!target_has_execution) |
8a3fe4f8 | 1234 | error (_("The program is not running.")); |
43ff13b4 JM |
1235 | |
1236 | /* Find out whether we must run in the background. */ | |
1237 | if (arg != NULL) | |
1238 | async_exec = strip_bg_char (&arg); | |
1239 | ||
1240 | /* If we must run in the background, but the target can't do it, | |
1241 | error out. */ | |
362646f5 | 1242 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1243 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1244 | |
1245 | /* If we are not asked to run in the bg, then prepare to run in the | |
1246 | foreground, synchronously. */ | |
362646f5 | 1247 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1248 | { |
43ff13b4 | 1249 | /* Simulate synchronous execution */ |
6426a772 | 1250 | async_disable_stdin (); |
43ff13b4 JM |
1251 | } |
1252 | ||
c906108c | 1253 | if (arg) |
ae66c1fc | 1254 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1255 | else |
1256 | until_next_command (from_tty); | |
1257 | } | |
ae66c1fc EZ |
1258 | |
1259 | static void | |
1260 | advance_command (char *arg, int from_tty) | |
1261 | { | |
1262 | int async_exec = 0; | |
1263 | ||
1264 | if (!target_has_execution) | |
8a3fe4f8 | 1265 | error (_("The program is not running.")); |
ae66c1fc EZ |
1266 | |
1267 | if (arg == NULL) | |
e2e0b3e5 | 1268 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1269 | |
1270 | /* Find out whether we must run in the background. */ | |
1271 | if (arg != NULL) | |
1272 | async_exec = strip_bg_char (&arg); | |
1273 | ||
1274 | /* If we must run in the background, but the target can't do it, | |
1275 | error out. */ | |
362646f5 | 1276 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1277 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1278 | |
1279 | /* If we are not asked to run in the bg, then prepare to run in the | |
1280 | foreground, synchronously. */ | |
362646f5 | 1281 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1282 | { |
1283 | /* Simulate synchronous execution. */ | |
1284 | async_disable_stdin (); | |
1285 | } | |
1286 | ||
1287 | until_break_command (arg, from_tty, 1); | |
1288 | } | |
c906108c | 1289 | \f |
f941662f MK |
1290 | /* Print the result of a function at the end of a 'finish' command. */ |
1291 | ||
11cf8741 | 1292 | static void |
c055b101 | 1293 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1294 | { |
31db7b6c | 1295 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1296 | struct cleanup *old_chain; |
1297 | struct ui_stream *stb; | |
44e5158b AC |
1298 | struct value *value; |
1299 | ||
181fc57c | 1300 | CHECK_TYPEDEF (value_type); |
44e5158b | 1301 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1302 | |
92ad9cd9 AC |
1303 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1304 | call, it's possible (with no help from the architecture vector) | |
1305 | to locate and return/print a "struct return" value. This is just | |
1306 | a more complicated case of what is already being done in in the | |
1307 | inferior function call code. In fact, when inferior function | |
1308 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1309 | |
c055b101 CV |
1310 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1311 | NULL, NULL, NULL)) | |
44e5158b | 1312 | { |
750eb019 AC |
1313 | case RETURN_VALUE_REGISTER_CONVENTION: |
1314 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1315 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1316 | value = allocate_value (value_type); |
c055b101 | 1317 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1318 | value_contents_raw (value), NULL); |
750eb019 AC |
1319 | break; |
1320 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1321 | value = NULL; | |
1322 | break; | |
1323 | default: | |
e2e0b3e5 | 1324 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1325 | } |
bb472c1e | 1326 | |
31db7b6c MK |
1327 | if (value) |
1328 | { | |
79a45b7d TT |
1329 | struct value_print_options opts; |
1330 | ||
31db7b6c | 1331 | /* Print it. */ |
1d751abe PA |
1332 | stb = ui_out_stream_new (uiout); |
1333 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1334 | ui_out_text (uiout, "Value returned is "); |
1335 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1336 | record_latest_value (value)); | |
1337 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1338 | get_raw_print_options (&opts); |
1339 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1340 | ui_out_field_stream (uiout, "return-value", stb); |
1341 | ui_out_text (uiout, "\n"); | |
1d751abe | 1342 | do_cleanups (old_chain); |
31db7b6c MK |
1343 | } |
1344 | else | |
1345 | { | |
1346 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1347 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1348 | ui_out_text (uiout, "."); | |
1349 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1350 | } |
11cf8741 JM |
1351 | } |
1352 | ||
43ff13b4 | 1353 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1354 | has stopped. In asynchronous mode, we wait for the target to stop |
1355 | in the call to poll or select in the event loop, so it is | |
1356 | impossible to do all the stuff as part of the finish_command | |
1357 | function itself. The only chance we have to complete this command | |
1358 | is in fetch_inferior_event, which is called by the event loop as | |
1359 | soon as it detects that the target has stopped. This function is | |
1360 | called via the cmd_continuation pointer. */ | |
1361 | ||
bfec99b2 | 1362 | struct finish_command_continuation_args |
43ff13b4 | 1363 | { |
43ff13b4 | 1364 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1365 | struct symbol *function; |
1366 | }; | |
c5aa993b | 1367 | |
bfec99b2 | 1368 | static void |
604ead4a | 1369 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1370 | { |
1371 | struct finish_command_continuation_args *a = arg; | |
41d2bdb4 | 1372 | struct thread_info *tp = NULL; |
347bddb7 PA |
1373 | bpstat bs = NULL; |
1374 | ||
1375 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1376 | && target_has_execution | |
1377 | && is_stopped (inferior_ptid)) | |
41d2bdb4 PA |
1378 | { |
1379 | tp = inferior_thread (); | |
1380 | bs = tp->stop_bpstat; | |
1381 | } | |
347bddb7 PA |
1382 | |
1383 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1384 | && a->function != NULL) |
43ff13b4 | 1385 | { |
604ead4a | 1386 | struct type *value_type; |
bfec99b2 | 1387 | |
604ead4a PA |
1388 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1389 | if (!value_type) | |
1390 | internal_error (__FILE__, __LINE__, | |
1391 | _("finish_command: function has no target type")); | |
f5871ec0 | 1392 | |
604ead4a PA |
1393 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
1394 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
43ff13b4 | 1395 | } |
f941662f | 1396 | |
604ead4a | 1397 | /* We suppress normal call of normal_stop observer and do it here so |
41d2bdb4 PA |
1398 | that the *stopped notification includes the return value. */ |
1399 | if (bs != NULL && tp->proceed_to_finish) | |
1400 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
bfec99b2 | 1401 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1402 | } |
1403 | ||
604ead4a PA |
1404 | static void |
1405 | finish_command_continuation_free_arg (void *arg) | |
1406 | { | |
604ead4a PA |
1407 | xfree (arg); |
1408 | } | |
1409 | ||
b2175913 MS |
1410 | /* finish_backward -- helper function for finish_command. */ |
1411 | ||
1412 | static void | |
1413 | finish_backward (struct symbol *function) | |
1414 | { | |
1415 | struct symtab_and_line sal; | |
1416 | struct thread_info *tp = inferior_thread (); | |
1417 | struct breakpoint *breakpoint; | |
1418 | struct cleanup *old_chain; | |
1c7819ef | 1419 | CORE_ADDR pc; |
b2175913 MS |
1420 | CORE_ADDR func_addr; |
1421 | int back_up; | |
1422 | ||
1c7819ef PA |
1423 | pc = get_frame_pc (get_current_frame ()); |
1424 | ||
1425 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1426 | internal_error (__FILE__, __LINE__, |
1427 | _("Finish: couldn't find function.")); | |
1428 | ||
1429 | sal = find_pc_line (func_addr, 0); | |
1430 | ||
1431 | /* We don't need a return value. */ | |
1432 | tp->proceed_to_finish = 0; | |
1433 | /* Special case: if we're sitting at the function entry point, | |
1434 | then all we need to do is take a reverse singlestep. We | |
1435 | don't need to set a breakpoint, and indeed it would do us | |
1436 | no good to do so. | |
1437 | ||
1438 | Note that this can only happen at frame #0, since there's | |
1439 | no way that a function up the stack can have a return address | |
1440 | that's equal to its entry point. */ | |
1441 | ||
1c7819ef | 1442 | if (sal.pc != pc) |
b2175913 MS |
1443 | { |
1444 | /* Set breakpoint and continue. */ | |
1445 | breakpoint = | |
1446 | set_momentary_breakpoint (sal, | |
1447 | get_frame_id (get_selected_frame (NULL)), | |
1448 | bp_breakpoint); | |
1449 | /* Tell the breakpoint to keep quiet. We won't be done | |
1450 | until we've done another reverse single-step. */ | |
1451 | make_breakpoint_silent (breakpoint); | |
1452 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1453 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1454 | /* We will be stopped when proceed returns. */ | |
1455 | back_up = bpstat_find_breakpoint (tp->stop_bpstat, breakpoint) != NULL; | |
1456 | do_cleanups (old_chain); | |
1457 | } | |
1458 | else | |
1459 | back_up = 1; | |
1460 | if (back_up) | |
1461 | { | |
1462 | /* If in fact we hit the step-resume breakpoint (and not | |
1463 | some other breakpoint), then we're almost there -- | |
1464 | we just need to back up by one more single-step. */ | |
1465 | tp->step_range_start = tp->step_range_end = 1; | |
1466 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1467 | } | |
1468 | return; | |
1469 | } | |
1470 | ||
1471 | /* finish_forward -- helper function for finish_command. */ | |
1472 | ||
1473 | static void | |
1474 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1475 | { | |
1476 | struct symtab_and_line sal; | |
1477 | struct thread_info *tp = inferior_thread (); | |
1478 | struct breakpoint *breakpoint; | |
1479 | struct cleanup *old_chain; | |
1480 | struct finish_command_continuation_args *cargs; | |
1481 | ||
1482 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1483 | sal.pc = get_frame_pc (frame); | |
1484 | ||
1485 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), | |
1486 | bp_finish); | |
1487 | ||
1488 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1489 | ||
1490 | tp->proceed_to_finish = 1; /* We want stop_registers, please... */ | |
b2175913 MS |
1491 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
1492 | ||
1493 | cargs = xmalloc (sizeof (*cargs)); | |
1494 | ||
1495 | cargs->breakpoint = breakpoint; | |
1496 | cargs->function = function; | |
1497 | add_continuation (tp, finish_command_continuation, cargs, | |
1498 | finish_command_continuation_free_arg); | |
1499 | ||
1500 | discard_cleanups (old_chain); | |
1501 | if (!target_can_async_p ()) | |
1502 | do_all_continuations (); | |
1503 | } | |
1504 | ||
f941662f MK |
1505 | /* "finish": Set a temporary breakpoint at the place the selected |
1506 | frame will return to, then continue. */ | |
c906108c SS |
1507 | |
1508 | static void | |
fba45db2 | 1509 | finish_command (char *arg, int from_tty) |
c906108c | 1510 | { |
52f0bd74 AC |
1511 | struct frame_info *frame; |
1512 | struct symbol *function; | |
43ff13b4 JM |
1513 | |
1514 | int async_exec = 0; | |
1515 | ||
f941662f | 1516 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1517 | if (arg != NULL) |
1518 | async_exec = strip_bg_char (&arg); | |
1519 | ||
1520 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1521 | error out. */ |
362646f5 | 1522 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1523 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1524 | |
b2175913 MS |
1525 | /* Don't try to async in reverse. */ |
1526 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1527 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1528 | ||
43ff13b4 | 1529 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1530 | foreground, synchronously. */ |
362646f5 | 1531 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1532 | { |
f941662f | 1533 | /* Simulate synchronous execution. */ |
6426a772 | 1534 | async_disable_stdin (); |
43ff13b4 | 1535 | } |
c906108c SS |
1536 | |
1537 | if (arg) | |
8a3fe4f8 | 1538 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1539 | if (!target_has_execution) |
8a3fe4f8 | 1540 | error (_("The program is not running.")); |
c906108c | 1541 | |
206415a3 | 1542 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1543 | if (frame == 0) |
8a3fe4f8 | 1544 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1545 | |
1546 | clear_proceed_status (); | |
1547 | ||
c906108c SS |
1548 | /* Find the function we will return from. */ |
1549 | ||
206415a3 | 1550 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1551 | |
f941662f MK |
1552 | /* Print info on the selected frame, including level number but not |
1553 | source. */ | |
c906108c SS |
1554 | if (from_tty) |
1555 | { | |
b2175913 MS |
1556 | if (execution_direction == EXEC_REVERSE) |
1557 | printf_filtered (_("Run back to call of ")); | |
1558 | else | |
1559 | printf_filtered (_("Run till exit from ")); | |
1560 | ||
b04f3ab4 | 1561 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1562 | } |
1563 | ||
b2175913 MS |
1564 | if (execution_direction == EXEC_REVERSE) |
1565 | finish_backward (function); | |
1566 | else | |
1567 | finish_forward (function, frame); | |
c906108c SS |
1568 | } |
1569 | \f | |
f941662f | 1570 | |
c906108c | 1571 | static void |
fba45db2 | 1572 | program_info (char *args, int from_tty) |
c906108c | 1573 | { |
347bddb7 PA |
1574 | bpstat bs; |
1575 | int num, stat; | |
1576 | struct thread_info *tp; | |
1577 | ptid_t ptid; | |
c5aa993b | 1578 | |
c906108c SS |
1579 | if (!target_has_execution) |
1580 | { | |
a3f17187 | 1581 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1582 | return; |
1583 | } | |
1584 | ||
347bddb7 PA |
1585 | if (non_stop) |
1586 | ptid = inferior_ptid; | |
1587 | else | |
1588 | { | |
1589 | struct target_waitstatus ws; | |
1590 | get_last_target_status (&ptid, &ws); | |
1591 | } | |
1592 | ||
1593 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1594 | error (_("Invalid selected thread.")); | |
1595 | else if (is_running (ptid)) | |
1596 | error (_("Selected thread is running.")); | |
1597 | ||
e09875d4 | 1598 | tp = find_thread_ptid (ptid); |
347bddb7 PA |
1599 | bs = tp->stop_bpstat; |
1600 | stat = bpstat_num (&bs, &num); | |
1601 | ||
c906108c | 1602 | target_files_info (); |
616d7dd2 | 1603 | printf_filtered (_("Program stopped at %s.\n"), paddress (stop_pc)); |
414c69f7 | 1604 | if (tp->stop_step) |
a3f17187 | 1605 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1606 | else if (stat != 0) |
c906108c SS |
1607 | { |
1608 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1609 | isn't as strange as it seems. */ |
8671a17b | 1610 | while (stat != 0) |
c906108c | 1611 | { |
8671a17b | 1612 | if (stat < 0) |
c906108c | 1613 | { |
a3f17187 AC |
1614 | printf_filtered (_("\ |
1615 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1616 | } |
1617 | else | |
a3f17187 | 1618 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1619 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1620 | } |
1621 | } | |
2020b7ab | 1622 | else if (tp->stop_signal != TARGET_SIGNAL_0) |
c906108c | 1623 | { |
a3f17187 | 1624 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2020b7ab PA |
1625 | target_signal_to_name (tp->stop_signal), |
1626 | target_signal_to_string (tp->stop_signal)); | |
c906108c SS |
1627 | } |
1628 | ||
1629 | if (!from_tty) | |
1630 | { | |
a3f17187 AC |
1631 | printf_filtered (_("\ |
1632 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1633 | } |
1634 | } | |
1635 | \f | |
1636 | static void | |
fba45db2 | 1637 | environment_info (char *var, int from_tty) |
c906108c SS |
1638 | { |
1639 | if (var) | |
1640 | { | |
aa1ee363 | 1641 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1642 | if (val) |
1643 | { | |
1644 | puts_filtered (var); | |
1645 | puts_filtered (" = "); | |
1646 | puts_filtered (val); | |
1647 | puts_filtered ("\n"); | |
1648 | } | |
1649 | else | |
1650 | { | |
1651 | puts_filtered ("Environment variable \""); | |
1652 | puts_filtered (var); | |
1653 | puts_filtered ("\" not defined.\n"); | |
1654 | } | |
1655 | } | |
1656 | else | |
1657 | { | |
aa1ee363 | 1658 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1659 | while (*vector) |
1660 | { | |
1661 | puts_filtered (*vector++); | |
1662 | puts_filtered ("\n"); | |
1663 | } | |
1664 | } | |
1665 | } | |
1666 | ||
1667 | static void | |
fba45db2 | 1668 | set_environment_command (char *arg, int from_tty) |
c906108c | 1669 | { |
52f0bd74 | 1670 | char *p, *val, *var; |
c906108c SS |
1671 | int nullset = 0; |
1672 | ||
1673 | if (arg == 0) | |
e2e0b3e5 | 1674 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1675 | |
1676 | /* Find seperation between variable name and value */ | |
1677 | p = (char *) strchr (arg, '='); | |
1678 | val = (char *) strchr (arg, ' '); | |
1679 | ||
1680 | if (p != 0 && val != 0) | |
1681 | { | |
1682 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1683 | equals, walk forward over the spaces til we see a nonspace |
1684 | (possibly the equals). */ | |
c906108c SS |
1685 | if (p > val) |
1686 | while (*val == ' ') | |
1687 | val++; | |
1688 | ||
1689 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1690 | take the char following the spaces. */ |
c906108c SS |
1691 | if (p > val) |
1692 | p = val - 1; | |
1693 | } | |
1694 | else if (val != 0 && p == 0) | |
1695 | p = val; | |
1696 | ||
1697 | if (p == arg) | |
e2e0b3e5 | 1698 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1699 | |
1700 | if (p == 0 || p[1] == 0) | |
1701 | { | |
1702 | nullset = 1; | |
1703 | if (p == 0) | |
1704 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1705 | } | |
1706 | else | |
1707 | { | |
1708 | /* Not setting variable value to null */ | |
1709 | val = p + 1; | |
1710 | while (*val == ' ' || *val == '\t') | |
1711 | val++; | |
1712 | } | |
1713 | ||
c5aa993b JM |
1714 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1715 | p--; | |
c906108c SS |
1716 | |
1717 | var = savestring (arg, p - arg); | |
1718 | if (nullset) | |
1719 | { | |
a3f17187 AC |
1720 | printf_filtered (_("\ |
1721 | Setting environment variable \"%s\" to null value.\n"), | |
1722 | var); | |
c906108c SS |
1723 | set_in_environ (inferior_environ, var, ""); |
1724 | } | |
1725 | else | |
1726 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1727 | xfree (var); |
c906108c SS |
1728 | } |
1729 | ||
1730 | static void | |
fba45db2 | 1731 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1732 | { |
1733 | if (var == 0) | |
1734 | { | |
1735 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1736 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1737 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1738 | { |
1739 | free_environ (inferior_environ); | |
1740 | inferior_environ = make_environ (); | |
1741 | } | |
1742 | } | |
1743 | else | |
1744 | unset_in_environ (inferior_environ, var); | |
1745 | } | |
1746 | ||
1747 | /* Handle the execution path (PATH variable) */ | |
1748 | ||
1749 | static const char path_var_name[] = "PATH"; | |
1750 | ||
c906108c | 1751 | static void |
fba45db2 | 1752 | path_info (char *args, int from_tty) |
c906108c SS |
1753 | { |
1754 | puts_filtered ("Executable and object file path: "); | |
1755 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1756 | puts_filtered ("\n"); | |
1757 | } | |
1758 | ||
1759 | /* Add zero or more directories to the front of the execution path. */ | |
1760 | ||
1761 | static void | |
fba45db2 | 1762 | path_command (char *dirname, int from_tty) |
c906108c SS |
1763 | { |
1764 | char *exec_path; | |
1765 | char *env; | |
1766 | dont_repeat (); | |
1767 | env = get_in_environ (inferior_environ, path_var_name); | |
1768 | /* Can be null if path is not set */ | |
1769 | if (!env) | |
1770 | env = ""; | |
4fcf66da | 1771 | exec_path = xstrdup (env); |
c906108c SS |
1772 | mod_path (dirname, &exec_path); |
1773 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1774 | xfree (exec_path); |
c906108c | 1775 | if (from_tty) |
c5aa993b | 1776 | path_info ((char *) NULL, from_tty); |
c906108c | 1777 | } |
c906108c | 1778 | \f |
c5aa993b | 1779 | |
4782dc19 | 1780 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1781 | registers (print_all == 1) or all non-float and non-vector |
1782 | registers (print_all == 0). | |
c906108c SS |
1783 | |
1784 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1785 | register(s) one per line is good enough. If a different format is |
1786 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1787 | regs), or there is an existing convention for showing all the | |
1788 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1789 | provide that format. */ | |
c906108c | 1790 | |
666e11c5 | 1791 | void |
0ab7a791 AC |
1792 | default_print_registers_info (struct gdbarch *gdbarch, |
1793 | struct ui_file *file, | |
1794 | struct frame_info *frame, | |
1795 | int regnum, int print_all) | |
c906108c | 1796 | { |
0ab7a791 | 1797 | int i; |
a4bd449d UW |
1798 | const int numregs = gdbarch_num_regs (gdbarch) |
1799 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1800 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1801 | |
c906108c SS |
1802 | for (i = 0; i < numregs; i++) |
1803 | { | |
4782dc19 AC |
1804 | /* Decide between printing all regs, non-float / vector regs, or |
1805 | specific reg. */ | |
c5aa993b JM |
1806 | if (regnum == -1) |
1807 | { | |
f9418c0f | 1808 | if (print_all) |
4782dc19 | 1809 | { |
f9418c0f | 1810 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1811 | continue; |
f9418c0f AC |
1812 | } |
1813 | else | |
1814 | { | |
1815 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1816 | continue; |
1817 | } | |
c5aa993b JM |
1818 | } |
1819 | else | |
1820 | { | |
1821 | if (i != regnum) | |
1822 | continue; | |
1823 | } | |
c906108c SS |
1824 | |
1825 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1826 | processor, so don't display anything. */ |
a4bd449d UW |
1827 | if (gdbarch_register_name (gdbarch, i) == NULL |
1828 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1829 | continue; |
1830 | ||
a4bd449d | 1831 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1832 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1833 | (gdbarch, i)), file); |
c906108c SS |
1834 | |
1835 | /* Get the data in raw format. */ | |
9730f241 | 1836 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1837 | { |
0ab7a791 | 1838 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1839 | continue; |
1840 | } | |
1841 | ||
0ab7a791 AC |
1842 | /* If virtual format is floating, print it that way, and in raw |
1843 | hex. */ | |
f949c649 TJB |
1844 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1845 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1846 | { |
0ab7a791 | 1847 | int j; |
79a45b7d | 1848 | struct value_print_options opts; |
c906108c | 1849 | |
79a45b7d TT |
1850 | get_user_print_options (&opts); |
1851 | opts.deref_ref = 1; | |
a4bd449d | 1852 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1853 | file, 0, &opts, current_language); |
c906108c | 1854 | |
0ab7a791 | 1855 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1856 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1857 | { |
0ab7a791 | 1858 | int idx; |
a4bd449d | 1859 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1860 | idx = j; |
1861 | else | |
a4bd449d | 1862 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1863 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1864 | } |
0ab7a791 | 1865 | fprintf_filtered (file, ")"); |
c906108c | 1866 | } |
c906108c SS |
1867 | else |
1868 | { | |
79a45b7d TT |
1869 | struct value_print_options opts; |
1870 | ||
ab4327e0 | 1871 | /* Print the register in hex. */ |
79a45b7d TT |
1872 | get_formatted_print_options (&opts, 'x'); |
1873 | opts.deref_ref = 1; | |
a4bd449d | 1874 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d TT |
1875 | file, 0, &opts, |
1876 | current_language); | |
ab4327e0 EZ |
1877 | /* If not a vector register, print it also according to its |
1878 | natural format. */ | |
a4bd449d | 1879 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1880 | { |
79a45b7d TT |
1881 | get_user_print_options (&opts); |
1882 | opts.deref_ref = 1; | |
9d84ac84 | 1883 | fprintf_filtered (file, "\t"); |
a4bd449d | 1884 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1885 | file, 0, &opts, current_language); |
ab4327e0 | 1886 | } |
c906108c SS |
1887 | } |
1888 | ||
0ab7a791 | 1889 | fprintf_filtered (file, "\n"); |
c906108c SS |
1890 | } |
1891 | } | |
c906108c | 1892 | |
c906108c | 1893 | void |
fba45db2 | 1894 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1895 | { |
206415a3 | 1896 | struct frame_info *frame; |
a4bd449d | 1897 | struct gdbarch *gdbarch; |
c906108c | 1898 | int regnum, numregs; |
52f0bd74 | 1899 | char *end; |
c906108c SS |
1900 | |
1901 | if (!target_has_registers) | |
8a3fe4f8 | 1902 | error (_("The program has no registers now.")); |
206415a3 | 1903 | frame = get_selected_frame (NULL); |
a4bd449d | 1904 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1905 | |
1906 | if (!addr_exp) | |
1907 | { | |
a4bd449d | 1908 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1909 | frame, -1, fpregs); |
c906108c SS |
1910 | return; |
1911 | } | |
1912 | ||
f9418c0f | 1913 | while (*addr_exp != '\0') |
c5aa993b | 1914 | { |
f9418c0f AC |
1915 | char *start; |
1916 | const char *end; | |
c906108c | 1917 | |
f9418c0f AC |
1918 | /* Keep skipping leading white space. */ |
1919 | if (isspace ((*addr_exp))) | |
1920 | { | |
1921 | addr_exp++; | |
1922 | continue; | |
1923 | } | |
c906108c | 1924 | |
f9418c0f AC |
1925 | /* Discard any leading ``$''. Check that there is something |
1926 | resembling a register following it. */ | |
1927 | if (addr_exp[0] == '$') | |
1928 | addr_exp++; | |
1929 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1930 | error (_("Missing register name")); |
c906108c | 1931 | |
f9418c0f AC |
1932 | /* Find the start/end of this register name/num/group. */ |
1933 | start = addr_exp; | |
1934 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1935 | addr_exp++; | |
1936 | end = addr_exp; | |
ad842144 | 1937 | |
f9418c0f AC |
1938 | /* Figure out what we've found and display it. */ |
1939 | ||
1940 | /* A register name? */ | |
1941 | { | |
029a67e4 | 1942 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
f9418c0f AC |
1943 | if (regnum >= 0) |
1944 | { | |
ad842144 MR |
1945 | /* User registers lie completely outside of the range of |
1946 | normal registers. Catch them early so that the target | |
1947 | never sees them. */ | |
1948 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1949 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1950 | { | |
79a45b7d | 1951 | struct value_print_options opts; |
ad842144 MR |
1952 | struct value *val = value_of_user_reg (regnum, frame); |
1953 | ||
1954 | printf_filtered ("%s: ", start); | |
79a45b7d | 1955 | get_formatted_print_options (&opts, 'x'); |
ad842144 MR |
1956 | print_scalar_formatted (value_contents (val), |
1957 | check_typedef (value_type (val)), | |
79a45b7d | 1958 | &opts, 0, gdb_stdout); |
ad842144 MR |
1959 | printf_filtered ("\n"); |
1960 | } | |
1961 | else | |
1962 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1963 | frame, regnum, fpregs); | |
f9418c0f AC |
1964 | continue; |
1965 | } | |
1966 | } | |
ad842144 | 1967 | |
f9418c0f AC |
1968 | /* A register group? */ |
1969 | { | |
6c7d17ba | 1970 | struct reggroup *group; |
a4bd449d | 1971 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1972 | group != NULL; |
a4bd449d | 1973 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1974 | { |
1975 | /* Don't bother with a length check. Should the user | |
1976 | enter a short register group name, go with the first | |
1977 | group that matches. */ | |
6c7d17ba | 1978 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1979 | break; |
1980 | } | |
6c7d17ba | 1981 | if (group != NULL) |
f9418c0f AC |
1982 | { |
1983 | int regnum; | |
f57d151a | 1984 | for (regnum = 0; |
a4bd449d UW |
1985 | regnum < gdbarch_num_regs (gdbarch) |
1986 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1987 | regnum++) |
f9418c0f | 1988 | { |
a4bd449d UW |
1989 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1990 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1991 | gdb_stdout, frame, |
f9418c0f AC |
1992 | regnum, fpregs); |
1993 | } | |
1994 | continue; | |
1995 | } | |
1996 | } | |
c906108c | 1997 | |
f9418c0f | 1998 | /* Nothing matched. */ |
8a3fe4f8 | 1999 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2000 | } |
c906108c SS |
2001 | } |
2002 | ||
2003 | void | |
fba45db2 | 2004 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2005 | { |
2006 | registers_info (addr_exp, 1); | |
2007 | } | |
2008 | ||
a58dd373 | 2009 | static void |
fba45db2 | 2010 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2011 | { |
2012 | registers_info (addr_exp, 0); | |
2013 | } | |
e76f1f2e AC |
2014 | |
2015 | static void | |
2016 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
2017 | struct frame_info *frame, const char *args) | |
2018 | { | |
2019 | if (gdbarch_print_vector_info_p (gdbarch)) | |
2020 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2021 | else | |
2022 | { | |
2023 | int regnum; | |
2024 | int printed_something = 0; | |
ab4327e0 | 2025 | |
f57d151a | 2026 | for (regnum = 0; |
a4bd449d UW |
2027 | regnum < gdbarch_num_regs (gdbarch) |
2028 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2029 | regnum++) |
e76f1f2e | 2030 | { |
f9418c0f | 2031 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2032 | { |
2033 | printed_something = 1; | |
e76f1f2e | 2034 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2035 | } |
2036 | } | |
2037 | if (!printed_something) | |
2038 | fprintf_filtered (file, "No vector information\n"); | |
2039 | } | |
2040 | } | |
2041 | ||
2042 | static void | |
2043 | vector_info (char *args, int from_tty) | |
2044 | { | |
206415a3 DJ |
2045 | if (!target_has_registers) |
2046 | error (_("The program has no registers now.")); | |
2047 | ||
2048 | print_vector_info (current_gdbarch, gdb_stdout, | |
2049 | get_selected_frame (NULL), args); | |
e76f1f2e | 2050 | } |
c906108c | 2051 | \f |
5fd62852 PA |
2052 | /* Kill the inferior process. Make us have no inferior. */ |
2053 | ||
2054 | static void | |
2055 | kill_command (char *arg, int from_tty) | |
2056 | { | |
2057 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2058 | It should be a distinct flag that indicates that a target is active, cuz | |
2059 | some targets don't have processes! */ | |
2060 | ||
2061 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2062 | error (_("The program is not being run.")); | |
2063 | if (!query (_("Kill the program being debugged? "))) | |
2064 | error (_("Not confirmed.")); | |
2065 | target_kill (); | |
2066 | ||
c35b1492 PA |
2067 | /* If we still have other inferiors to debug, then don't mess with |
2068 | with their threads. */ | |
2069 | if (!have_inferiors ()) | |
5fd62852 PA |
2070 | { |
2071 | init_thread_list (); /* Destroy thread info */ | |
2072 | ||
2073 | /* Killing off the inferior can leave us with a core file. If | |
2074 | so, print the state we are left in. */ | |
2075 | if (target_has_stack) | |
2076 | { | |
2077 | printf_filtered (_("In %s,\n"), target_longname); | |
2078 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
2079 | } | |
2080 | } | |
2081 | bfd_cache_close_all (); | |
2082 | } | |
c5aa993b | 2083 | |
74531fed PA |
2084 | /* Used in `attach&' command. ARG is a point to an integer |
2085 | representing a process id. Proceed threads of this process iff | |
2086 | they stopped due to debugger request, and when they did, they | |
2087 | reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads | |
2088 | that have been explicitly been told to stop. */ | |
2089 | ||
2090 | static int | |
2091 | proceed_after_attach_callback (struct thread_info *thread, | |
2092 | void *arg) | |
2093 | { | |
2094 | int pid = * (int *) arg; | |
2095 | ||
2096 | if (ptid_get_pid (thread->ptid) == pid | |
2097 | && !is_exited (thread->ptid) | |
2098 | && !is_executing (thread->ptid) | |
2099 | && !thread->stop_requested | |
2100 | && thread->stop_signal == TARGET_SIGNAL_0) | |
2101 | { | |
2102 | switch_to_thread (thread->ptid); | |
2103 | clear_proceed_status (); | |
2104 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2105 | } | |
2106 | ||
2107 | return 0; | |
2108 | } | |
2109 | ||
2110 | static void | |
2111 | proceed_after_attach (int pid) | |
2112 | { | |
2113 | /* Don't error out if the current thread is running, because | |
2114 | there may be other stopped threads. */ | |
2115 | struct cleanup *old_chain; | |
2116 | ||
2117 | /* Backup current thread and selected frame. */ | |
2118 | old_chain = make_cleanup_restore_current_thread (); | |
2119 | ||
2120 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2121 | ||
2122 | /* Restore selected ptid. */ | |
2123 | do_cleanups (old_chain); | |
2124 | } | |
2125 | ||
c906108c SS |
2126 | /* |
2127 | * TODO: | |
2128 | * Should save/restore the tty state since it might be that the | |
2129 | * program to be debugged was started on this tty and it wants | |
2130 | * the tty in some state other than what we want. If it's running | |
2131 | * on another terminal or without a terminal, then saving and | |
2132 | * restoring the tty state is a harmless no-op. | |
2133 | * This only needs to be done if we are attaching to a process. | |
2134 | */ | |
2135 | ||
2136 | /* | |
2137 | attach_command -- | |
2138 | takes a program started up outside of gdb and ``attaches'' to it. | |
2139 | This stops it cold in its tracks and allows us to start debugging it. | |
2140 | and wait for the trace-trap that results from attaching. */ | |
2141 | ||
9356cf8d PA |
2142 | static void |
2143 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2144 | { | |
2145 | char *exec_file; | |
2146 | char *full_exec_path = NULL; | |
d6b48e9c | 2147 | struct inferior *inferior; |
9356cf8d | 2148 | |
d6b48e9c PA |
2149 | inferior = current_inferior (); |
2150 | inferior->stop_soon = NO_STOP_QUIETLY; | |
9356cf8d PA |
2151 | |
2152 | /* If no exec file is yet known, try to determine it from the | |
2153 | process itself. */ | |
2154 | exec_file = (char *) get_exec_file (0); | |
2155 | if (!exec_file) | |
2156 | { | |
2157 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2158 | if (exec_file) | |
2159 | { | |
2160 | /* It's possible we don't have a full path, but rather just a | |
2161 | filename. Some targets, such as HP-UX, don't provide the | |
2162 | full path, sigh. | |
2163 | ||
2164 | Attempt to qualify the filename against the source path. | |
2165 | (If that fails, we'll just fall back on the original | |
2166 | filename. Not much more we can do...) | |
2167 | */ | |
2168 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
1b36a34b | 2169 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2170 | |
2171 | exec_file_attach (full_exec_path, from_tty); | |
2172 | symbol_file_add_main (full_exec_path, from_tty); | |
2173 | } | |
2174 | } | |
2175 | else | |
2176 | { | |
2177 | reopen_exec_file (); | |
2178 | reread_symbols (); | |
2179 | } | |
2180 | ||
2181 | /* Take any necessary post-attaching actions for this platform. */ | |
2182 | target_post_attach (PIDGET (inferior_ptid)); | |
2183 | ||
2184 | post_create_inferior (¤t_target, from_tty); | |
2185 | ||
2186 | /* Install inferior's terminal modes. */ | |
2187 | target_terminal_inferior (); | |
2188 | ||
2189 | if (async_exec) | |
74531fed PA |
2190 | { |
2191 | /* The user requested an `attach&', so be sure to leave threads | |
2192 | that didn't get a signal running. */ | |
2193 | ||
2194 | /* Immediatelly resume all suspended threads of this inferior, | |
2195 | and this inferior only. This should have no effect on | |
2196 | already running threads. If a thread has been stopped with a | |
2197 | signal, leave it be. */ | |
2198 | if (non_stop) | |
2199 | proceed_after_attach (inferior->pid); | |
2200 | else | |
2201 | { | |
2202 | if (inferior_thread ()->stop_signal == TARGET_SIGNAL_0) | |
2203 | { | |
2204 | clear_proceed_status (); | |
2205 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2206 | } | |
2207 | } | |
2208 | } | |
9356cf8d PA |
2209 | else |
2210 | { | |
74531fed PA |
2211 | /* The user requested a plain `attach', so be sure to leave |
2212 | the inferior stopped. */ | |
2213 | ||
9356cf8d PA |
2214 | if (target_can_async_p ()) |
2215 | async_enable_stdin (); | |
74531fed PA |
2216 | |
2217 | /* At least the current thread is already stopped. */ | |
2218 | ||
2219 | /* In all-stop, by definition, all threads have to be already | |
2220 | stopped at this point. In non-stop, however, although the | |
2221 | selected thread is stopped, others may still be executing. | |
2222 | Be sure to explicitly stop all threads of the process. This | |
2223 | should have no effect on already stopped threads. */ | |
2224 | if (non_stop) | |
2225 | target_stop (pid_to_ptid (inferior->pid)); | |
2226 | ||
2227 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2228 | normal_stop (); |
2229 | if (deprecated_attach_hook) | |
2230 | deprecated_attach_hook (); | |
2231 | } | |
2232 | } | |
2233 | ||
bfec99b2 | 2234 | struct attach_command_continuation_args |
9356cf8d PA |
2235 | { |
2236 | char *args; | |
2237 | int from_tty; | |
2238 | int async_exec; | |
bfec99b2 | 2239 | }; |
9356cf8d | 2240 | |
bfec99b2 | 2241 | static void |
604ead4a | 2242 | attach_command_continuation (void *args) |
bfec99b2 PA |
2243 | { |
2244 | struct attach_command_continuation_args *a = args; | |
2245 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); | |
9356cf8d PA |
2246 | } |
2247 | ||
604ead4a PA |
2248 | static void |
2249 | attach_command_continuation_free_args (void *args) | |
2250 | { | |
2251 | struct attach_command_continuation_args *a = args; | |
2252 | xfree (a->args); | |
2253 | xfree (a); | |
2254 | } | |
2255 | ||
c906108c | 2256 | void |
fba45db2 | 2257 | attach_command (char *args, int from_tty) |
c906108c | 2258 | { |
c5aa993b JM |
2259 | char *exec_file; |
2260 | char *full_exec_path = NULL; | |
9356cf8d | 2261 | int async_exec = 0; |
cb0362bb | 2262 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2263 | |
c5aa993b | 2264 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2265 | |
2567c7d9 PA |
2266 | if (gdbarch_has_global_solist (target_gdbarch)) |
2267 | /* Don't complain if all processes share the same symbol | |
2268 | space. */ | |
8a305172 PA |
2269 | ; |
2270 | else if (target_has_execution) | |
c906108c | 2271 | { |
9e2f0ad4 | 2272 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2273 | target_kill (); |
2274 | else | |
8a3fe4f8 | 2275 | error (_("Not killed.")); |
c906108c SS |
2276 | } |
2277 | ||
fd79ecee DJ |
2278 | /* Clean up any leftovers from other runs. Some other things from |
2279 | this function should probably be moved into target_pre_inferior. */ | |
2280 | target_pre_inferior (from_tty); | |
2281 | ||
9908b566 VP |
2282 | if (non_stop && !target_supports_non_stop ()) |
2283 | error (_("Cannot attach to this target in non-stop mode")); | |
2284 | ||
9356cf8d PA |
2285 | if (args) |
2286 | { | |
2287 | async_exec = strip_bg_char (&args); | |
2288 | ||
2289 | /* If we get a request for running in the bg but the target | |
2290 | doesn't support it, error out. */ | |
2291 | if (async_exec && !target_can_async_p ()) | |
2292 | error (_("Asynchronous execution not supported on this target.")); | |
2293 | } | |
2294 | ||
2295 | /* If we don't get a request of running in the bg, then we need | |
2296 | to simulate synchronous (fg) execution. */ | |
2297 | if (!async_exec && target_can_async_p ()) | |
2298 | { | |
2299 | /* Simulate synchronous execution */ | |
2300 | async_disable_stdin (); | |
cb0362bb | 2301 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2302 | } |
2303 | ||
c906108c SS |
2304 | target_attach (args, from_tty); |
2305 | ||
2306 | /* Set up the "saved terminal modes" of the inferior | |
2307 | based on what modes we are starting it with. */ | |
2308 | target_terminal_init (); | |
2309 | ||
c906108c SS |
2310 | /* Set up execution context to know that we should return from |
2311 | wait_for_inferior as soon as the target reports a stop. */ | |
2312 | init_wait_for_inferior (); | |
2313 | clear_proceed_status (); | |
c906108c | 2314 | |
74531fed PA |
2315 | if (non_stop) |
2316 | { | |
2317 | /* If we find that the current thread isn't stopped, explicitly | |
2318 | do so now, because we're going to install breakpoints and | |
2319 | poke at memory. */ | |
2320 | ||
2321 | if (async_exec) | |
2322 | /* The user requested an `attach&'; stop just one thread. */ | |
2323 | target_stop (inferior_ptid); | |
2324 | else | |
2325 | /* The user requested an `attach', so stop all threads of this | |
2326 | inferior. */ | |
2327 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2328 | } | |
2329 | ||
dc177b7a PA |
2330 | /* Some system don't generate traps when attaching to inferior. |
2331 | E.g. Mach 3 or GNU hurd. */ | |
2332 | if (!target_attach_no_wait) | |
c5aa993b | 2333 | { |
d6b48e9c PA |
2334 | struct inferior *inferior = current_inferior (); |
2335 | ||
dc177b7a PA |
2336 | /* Careful here. See comments in inferior.h. Basically some |
2337 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2338 | need a way for handle_inferior_event to reset the stop_signal | |
2339 | variable after an attach, and this is what | |
2340 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
d6b48e9c | 2341 | inferior->stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2342 | |
dc177b7a PA |
2343 | if (target_can_async_p ()) |
2344 | { | |
2345 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2346 | struct attach_command_continuation_args *a; |
2347 | ||
2348 | a = xmalloc (sizeof (*a)); | |
2349 | a->args = xstrdup (args); | |
2350 | a->from_tty = from_tty; | |
2351 | a->async_exec = async_exec; | |
e0ba6746 PA |
2352 | add_inferior_continuation (attach_command_continuation, a, |
2353 | attach_command_continuation_free_args); | |
cb0362bb | 2354 | discard_cleanups (back_to); |
dc177b7a PA |
2355 | return; |
2356 | } | |
c906108c | 2357 | |
dc177b7a PA |
2358 | wait_for_inferior (0); |
2359 | } | |
6426a772 | 2360 | |
9356cf8d | 2361 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2362 | discard_cleanups (back_to); |
c906108c SS |
2363 | } |
2364 | ||
1941c569 PA |
2365 | /* We had just found out that the target was already attached to an |
2366 | inferior. PTID points at a thread of this new inferior, that is | |
2367 | the most likely to be stopped right now, but not necessarily so. | |
2368 | The new inferior is assumed to be already added to the inferior | |
2369 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2370 | this inferior running, except those we've explicitly seen reported | |
2371 | as stopped. */ | |
2372 | ||
2373 | void | |
2374 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2375 | { | |
2376 | struct cleanup* old_chain; | |
2377 | int async_exec; | |
2378 | ||
2379 | old_chain = make_cleanup (null_cleanup, NULL); | |
2380 | ||
2381 | /* If in non-stop, leave threads as running as they were. If | |
2382 | they're stopped for some reason other than us telling it to, the | |
2383 | target reports a signal != TARGET_SIGNAL_0. We don't try to | |
2384 | resume threads with such a stop signal. */ | |
2385 | async_exec = non_stop; | |
2386 | ||
2387 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2388 | make_cleanup_restore_current_thread (); | |
2389 | ||
2390 | switch_to_thread (ptid); | |
2391 | ||
2392 | /* When we "notice" a new inferior we need to do all the things we | |
2393 | would normally do if we had just attached to it. */ | |
2394 | ||
2395 | if (is_executing (inferior_ptid)) | |
2396 | { | |
2397 | struct inferior *inferior = current_inferior (); | |
2398 | ||
2399 | /* We're going to install breakpoints, and poke at memory, | |
2400 | ensure that the inferior is stopped for a moment while we do | |
2401 | that. */ | |
2402 | target_stop (inferior_ptid); | |
2403 | ||
2404 | inferior->stop_soon = STOP_QUIETLY_REMOTE; | |
2405 | ||
2406 | /* Wait for stop before proceeding. */ | |
2407 | if (target_can_async_p ()) | |
2408 | { | |
2409 | struct attach_command_continuation_args *a; | |
2410 | ||
2411 | a = xmalloc (sizeof (*a)); | |
2412 | a->args = xstrdup (""); | |
2413 | a->from_tty = from_tty; | |
2414 | a->async_exec = async_exec; | |
2415 | add_inferior_continuation (attach_command_continuation, a, | |
2416 | attach_command_continuation_free_args); | |
2417 | ||
2418 | do_cleanups (old_chain); | |
2419 | return; | |
2420 | } | |
2421 | else | |
2422 | wait_for_inferior (0); | |
2423 | } | |
2424 | ||
2425 | async_exec = leave_running; | |
2426 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2427 | ||
2428 | do_cleanups (old_chain); | |
2429 | } | |
2430 | ||
c906108c SS |
2431 | /* |
2432 | * detach_command -- | |
2433 | * takes a program previously attached to and detaches it. | |
2434 | * The program resumes execution and will no longer stop | |
2435 | * on signals, etc. We better not have left any breakpoints | |
2436 | * in the program or it'll die when it hits one. For this | |
2437 | * to work, it may be necessary for the process to have been | |
2438 | * previously attached. It *might* work if the program was | |
2439 | * started via the normal ptrace (PTRACE_TRACEME). | |
2440 | */ | |
2441 | ||
6418d433 | 2442 | void |
fba45db2 | 2443 | detach_command (char *args, int from_tty) |
c906108c | 2444 | { |
1f5d0fc9 | 2445 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2446 | |
2447 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2448 | error (_("The program is not being run.")); | |
2449 | ||
c906108c | 2450 | target_detach (args, from_tty); |
50c71eaf PA |
2451 | |
2452 | /* If the solist is global across inferiors, don't clear it when we | |
2453 | detach from a single inferior. */ | |
2454 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2455 | no_shared_libraries (NULL, from_tty); | |
8a305172 | 2456 | |
c35b1492 PA |
2457 | /* If we still have inferiors to debug, then don't mess with their |
2458 | threads. */ | |
2459 | if (!have_inferiors ()) | |
8a305172 PA |
2460 | init_thread_list (); |
2461 | ||
9a4105ab AC |
2462 | if (deprecated_detach_hook) |
2463 | deprecated_detach_hook (); | |
c906108c SS |
2464 | } |
2465 | ||
6ad8ae5c DJ |
2466 | /* Disconnect from the current target without resuming it (leaving it |
2467 | waiting for a debugger). | |
2468 | ||
2469 | We'd better not have left any breakpoints in the program or the | |
2470 | next debugger will get confused. Currently only supported for some | |
2471 | remote targets, since the normal attach mechanisms don't work on | |
2472 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2473 | ||
2474 | static void | |
2475 | disconnect_command (char *args, int from_tty) | |
2476 | { | |
2477 | dont_repeat (); /* Not for the faint of heart */ | |
2478 | target_disconnect (args, from_tty); | |
e85a822c | 2479 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2480 | init_thread_list (); |
9a4105ab AC |
2481 | if (deprecated_detach_hook) |
2482 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2483 | } |
2484 | ||
77ebaa5a VP |
2485 | void |
2486 | interrupt_target_1 (int all_threads) | |
2487 | { | |
2488 | ptid_t ptid; | |
2489 | if (all_threads) | |
2490 | ptid = minus_one_ptid; | |
2491 | else | |
2492 | ptid = inferior_ptid; | |
2493 | target_stop (ptid); | |
252fbfc8 PA |
2494 | |
2495 | /* Tag the thread as having been explicitly requested to stop, so | |
2496 | other parts of gdb know not to resume this thread automatically, | |
2497 | if it was stopped due to an internal event. Limit this to | |
2498 | non-stop mode, as when debugging a multi-threaded application in | |
2499 | all-stop mode, we will only get one stop event --- it's undefined | |
2500 | which thread will report the event. */ | |
2501 | if (non_stop) | |
2502 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2503 | } |
2504 | ||
43ff13b4 | 2505 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2506 | the backgound. In all-stop, stop the whole process. In non-stop |
2507 | mode, stop the current thread only by default, or stop all threads | |
2508 | if the `-a' switch is used. */ | |
2509 | ||
2510 | /* interrupt [-a] */ | |
8b93c638 | 2511 | void |
fba45db2 | 2512 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2513 | { |
362646f5 | 2514 | if (target_can_async_p ()) |
43ff13b4 | 2515 | { |
8cae4b3f PA |
2516 | int all_threads = 0; |
2517 | ||
c5aa993b | 2518 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2519 | |
8cae4b3f PA |
2520 | if (args != NULL |
2521 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2522 | all_threads = 1; | |
2523 | ||
2524 | if (!non_stop && all_threads) | |
2525 | error (_("-a is meaningless in all-stop mode.")); | |
2526 | ||
77ebaa5a | 2527 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2528 | } |
2529 | } | |
2530 | ||
c906108c | 2531 | static void |
23e3a7ac AC |
2532 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2533 | struct frame_info *frame, const char *args) | |
c906108c | 2534 | { |
23e3a7ac AC |
2535 | if (gdbarch_print_float_info_p (gdbarch)) |
2536 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2537 | else | |
2538 | { | |
23e3a7ac AC |
2539 | int regnum; |
2540 | int printed_something = 0; | |
ab4327e0 | 2541 | |
f57d151a | 2542 | for (regnum = 0; |
a4bd449d UW |
2543 | regnum < gdbarch_num_regs (gdbarch) |
2544 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2545 | regnum++) |
23e3a7ac | 2546 | { |
f9418c0f | 2547 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2548 | { |
2549 | printed_something = 1; | |
23e3a7ac | 2550 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2551 | } |
2552 | } | |
2553 | if (!printed_something) | |
2554 | fprintf_filtered (file, "\ | |
2555 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2556 | } |
2557 | } | |
2558 | ||
2559 | static void | |
2560 | float_info (char *args, int from_tty) | |
2561 | { | |
206415a3 DJ |
2562 | if (!target_has_registers) |
2563 | error (_("The program has no registers now.")); | |
2564 | ||
1f5d0fc9 | 2565 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2566 | get_selected_frame (NULL), args); |
c906108c SS |
2567 | } |
2568 | \f | |
c906108c | 2569 | static void |
fba45db2 | 2570 | unset_command (char *args, int from_tty) |
c906108c | 2571 | { |
a3f17187 AC |
2572 | printf_filtered (_("\ |
2573 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2574 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2575 | } | |
2576 | ||
2577 | void | |
fba45db2 | 2578 | _initialize_infcmd (void) |
c906108c | 2579 | { |
3cb3b8df BR |
2580 | struct cmd_list_element *c = NULL; |
2581 | ||
2582 | /* add the filename of the terminal connected to inferior I/O */ | |
2583 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2584 | &inferior_io_terminal, _("\ | |
2585 | Set terminal for future runs of program being debugged."), _("\ | |
2586 | Show terminal for future runs of program being debugged."), _("\ | |
2587 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2588 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2589 | |
b4b4ac0b AC |
2590 | add_setshow_optional_filename_cmd ("args", class_run, |
2591 | &inferior_args, _("\ | |
2592 | Set argument list to give program being debugged when it is started."), _("\ | |
2593 | Show argument list to give program being debugged when it is started."), _("\ | |
2594 | Follow this command with any number of args, to be passed to the program."), | |
2595 | notice_args_set, | |
2596 | notice_args_read, | |
2597 | &setlist, &showlist); | |
c906108c | 2598 | |
1a966eab AC |
2599 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2600 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2601 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2602 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2603 | environment to be given to the program."), &showlist); |
5ba2abeb | 2604 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2605 | |
2606 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2607 | _("Complement to certain \"set\" commands."), |
c906108c | 2608 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2609 | |
1a966eab AC |
2610 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2611 | Cancel environment variable VAR for the program.\n\ | |
2612 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2613 | &unsetlist); |
5ba2abeb | 2614 | set_cmd_completer (c, noop_completer); |
c906108c | 2615 | |
1a966eab AC |
2616 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2617 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2618 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2619 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2620 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2621 | &setlist); |
5ba2abeb | 2622 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2623 | |
1bedd215 AC |
2624 | c = add_com ("path", class_files, path_command, _("\ |
2625 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2626 | $cwd in the path means the current working directory.\n\ |
2627 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2628 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2629 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2630 | set_cmd_completer (c, filename_completer); |
c906108c | 2631 | |
1a966eab AC |
2632 | c = add_cmd ("paths", no_class, path_info, _("\ |
2633 | Current search path for finding object files.\n\ | |
c906108c SS |
2634 | $cwd in the path means the current working directory.\n\ |
2635 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2636 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2637 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2638 | &showlist); |
5ba2abeb | 2639 | set_cmd_completer (c, noop_completer); |
c906108c | 2640 | |
5fd62852 PA |
2641 | add_com ("kill", class_run, kill_command, |
2642 | _("Kill execution of program being debugged.")); | |
2643 | ||
1bedd215 AC |
2644 | add_com ("attach", class_run, attach_command, _("\ |
2645 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2646 | This command attaches to another target, of the same type as your last\n\ |
2647 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2648 | The command may take as argument a process id or a device file.\n\ | |
2649 | For a process id, you must have permission to send the process a signal,\n\ | |
2650 | and it must have the same effective uid as the debugger.\n\ | |
2651 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2652 | program running in the process, looking first in the current working\n\ | |
2653 | directory, or (if not found there) using the source file search path\n\ | |
2654 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2655 | to specify the program, and to load its symbol table.")); |
c906108c | 2656 | |
f73adfeb | 2657 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2658 | Detach a process or file previously attached.\n\ |
c906108c | 2659 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2660 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2661 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2662 | |
1bedd215 AC |
2663 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2664 | Disconnect from a target.\n\ | |
6ad8ae5c | 2665 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2666 | all targets.")); |
6ad8ae5c | 2667 | |
1bedd215 AC |
2668 | add_com ("signal", class_run, signal_command, _("\ |
2669 | Continue program giving it signal specified by the argument.\n\ | |
2670 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2671 | |
1bedd215 AC |
2672 | add_com ("stepi", class_run, stepi_command, _("\ |
2673 | Step one instruction exactly.\n\ | |
2674 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2675 | add_com_alias ("si", "stepi", class_alias, 0); |
2676 | ||
1bedd215 AC |
2677 | add_com ("nexti", class_run, nexti_command, _("\ |
2678 | Step one instruction, but proceed through subroutine calls.\n\ | |
2679 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2680 | add_com_alias ("ni", "nexti", class_alias, 0); |
2681 | ||
1bedd215 AC |
2682 | add_com ("finish", class_run, finish_command, _("\ |
2683 | Execute until selected stack frame returns.\n\ | |
2684 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2685 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2686 | |
1bedd215 AC |
2687 | add_com ("next", class_run, next_command, _("\ |
2688 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2689 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2690 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2691 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2692 | add_com_alias ("n", "next", class_run, 1); |
2693 | if (xdb_commands) | |
c5aa993b | 2694 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2695 | |
1bedd215 AC |
2696 | add_com ("step", class_run, step_command, _("\ |
2697 | Step program until it reaches a different source line.\n\ | |
2698 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2699 | add_com_alias ("s", "step", class_run, 1); |
2700 | ||
1bedd215 AC |
2701 | c = add_com ("until", class_run, until_command, _("\ |
2702 | Execute until the program reaches a source line greater than the current\n\ | |
2703 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2704 | set_cmd_completer (c, location_completer); |
c906108c | 2705 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2706 | |
1bedd215 AC |
2707 | c = add_com ("advance", class_run, advance_command, _("\ |
2708 | Continue the program up to the given location (same form as args for break command).\n\ | |
2709 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2710 | set_cmd_completer (c, location_completer); |
2711 | ||
1bedd215 AC |
2712 | c = add_com ("jump", class_run, jump_command, _("\ |
2713 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2714 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2715 | for an address to start at.")); |
5ba2abeb | 2716 | set_cmd_completer (c, location_completer); |
c906108c | 2717 | |
b83266a0 | 2718 | if (xdb_commands) |
c94fdfd0 | 2719 | { |
1bedd215 AC |
2720 | c = add_com ("go", class_run, go_command, _("\ |
2721 | Usage: go <location>\n\ | |
c906108c SS |
2722 | Continue program being debugged, stopping at specified line or \n\ |
2723 | address.\n\ | |
2724 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2725 | expression for an address to start at.\n\ | |
1bedd215 | 2726 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2727 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2728 | } |
b83266a0 | 2729 | |
c906108c | 2730 | if (xdb_commands) |
c5aa993b | 2731 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2732 | |
8cae4b3f | 2733 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2734 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2735 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2736 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2737 | the breakpoint won't break until the Nth time it is reached).\n\ |
2738 | \n\ | |
2739 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2740 | otherwise all the threads in the program are continued. To \n\ | |
2741 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2742 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2743 | add_com_alias ("c", "cont", class_run, 1); |
2744 | add_com_alias ("fg", "cont", class_run, 1); | |
2745 | ||
1bedd215 AC |
2746 | c = add_com ("run", class_run, run_command, _("\ |
2747 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2748 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2749 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2750 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2751 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2752 | use \"set args\" without arguments.")); |
5ba2abeb | 2753 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2754 | add_com_alias ("r", "run", class_run, 1); |
2755 | if (xdb_commands) | |
2756 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2757 | _("Start debugged program with no arguments.")); |
c906108c | 2758 | |
1bedd215 | 2759 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2760 | Run the debugged program until the beginning of the main procedure.\n\ |
2761 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2762 | \"run\" command.")); |
a4d5f2e0 JB |
2763 | set_cmd_completer (c, filename_completer); |
2764 | ||
700b53b1 | 2765 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2766 | _("Interrupt the execution of the debugged program.\n\ |
2767 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2768 | otherwise all the threads in the program are stopped. To \n\ | |
2769 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2770 | |
1bedd215 AC |
2771 | add_info ("registers", nofp_registers_info, _("\ |
2772 | List of integer registers and their contents, for selected stack frame.\n\ | |
2773 | Register name as argument means describe only that register.")); | |
7194c49b | 2774 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2775 | |
2776 | if (xdb_commands) | |
1bedd215 AC |
2777 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2778 | List of integer registers and their contents, for selected stack frame.\n\ | |
2779 | Register name as argument means describe only that register.")); | |
2780 | add_info ("all-registers", all_registers_info, _("\ | |
2781 | List of all registers and their contents, for selected stack frame.\n\ | |
2782 | Register name as argument means describe only that register.")); | |
c906108c SS |
2783 | |
2784 | add_info ("program", program_info, | |
1bedd215 | 2785 | _("Execution status of the program.")); |
c906108c SS |
2786 | |
2787 | add_info ("float", float_info, | |
1bedd215 | 2788 | _("Print the status of the floating point unit\n")); |
c906108c | 2789 | |
e76f1f2e | 2790 | add_info ("vector", vector_info, |
1bedd215 | 2791 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2792 | |
c906108c SS |
2793 | inferior_environ = make_environ (); |
2794 | init_environ (inferior_environ); | |
2795 | } |