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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 | ||
bd57a748 | 197 | n = construct_inferior_arguments (inferior_argc, inferior_argv); |
552c04a7 TT |
198 | old = set_inferior_args (n); |
199 | xfree (old); | |
200 | } | |
201 | ||
202 | if (inferior_args == NULL) | |
203 | inferior_args = xstrdup (""); | |
204 | ||
07091751 FN |
205 | return inferior_args; |
206 | } | |
207 | ||
208 | char * | |
209 | set_inferior_args (char *newargs) | |
210 | { | |
211 | char *saved_args = inferior_args; | |
212 | ||
213 | inferior_args = newargs; | |
552c04a7 TT |
214 | inferior_argc = 0; |
215 | inferior_argv = 0; | |
07091751 FN |
216 | |
217 | return saved_args; | |
218 | } | |
c5aa993b | 219 | |
552c04a7 TT |
220 | void |
221 | set_inferior_args_vector (int argc, char **argv) | |
222 | { | |
223 | inferior_argc = argc; | |
224 | inferior_argv = argv; | |
225 | } | |
226 | ||
227 | /* Notice when `set args' is run. */ | |
228 | static void | |
229 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
230 | { | |
231 | inferior_argc = 0; | |
232 | inferior_argv = 0; | |
233 | } | |
234 | ||
235 | /* Notice when `show args' is run. */ | |
236 | static void | |
b4b4ac0b AC |
237 | notice_args_read (struct ui_file *file, int from_tty, |
238 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 239 | { |
258c00cc TT |
240 | /* Note that we ignore the passed-in value in favor of computing it |
241 | directly. */ | |
242 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
243 | } |
244 | ||
c2a727fa TT |
245 | \f |
246 | /* Compute command-line string given argument vector. This does the | |
247 | same shell processing as fork_inferior. */ | |
c2a727fa | 248 | char * |
bd57a748 | 249 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
250 | { |
251 | char *result; | |
252 | ||
253 | if (STARTUP_WITH_SHELL) | |
254 | { | |
255 | /* This holds all the characters considered special to the | |
256 | typical Unix shells. We include `^' because the SunOS | |
257 | /bin/sh treats it as a synonym for `|'. */ | |
258 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
259 | int i; | |
260 | int length = 0; | |
261 | char *out, *cp; | |
262 | ||
263 | /* We over-compute the size. It shouldn't matter. */ | |
264 | for (i = 0; i < argc; ++i) | |
c2226152 | 265 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
266 | |
267 | result = (char *) xmalloc (length); | |
268 | out = result; | |
269 | ||
270 | for (i = 0; i < argc; ++i) | |
271 | { | |
272 | if (i > 0) | |
273 | *out++ = ' '; | |
274 | ||
03c6228e AS |
275 | /* Need to handle empty arguments specially. */ |
276 | if (argv[i][0] == '\0') | |
c2a727fa | 277 | { |
03c6228e AS |
278 | *out++ = '\''; |
279 | *out++ = '\''; | |
280 | } | |
281 | else | |
282 | { | |
283 | for (cp = argv[i]; *cp; ++cp) | |
284 | { | |
c2226152 AS |
285 | if (*cp == '\n') |
286 | { | |
287 | /* A newline cannot be quoted with a backslash (it | |
288 | just disappears), only by putting it inside | |
289 | quotes. */ | |
290 | *out++ = '\''; | |
291 | *out++ = '\n'; | |
292 | *out++ = '\''; | |
293 | } | |
294 | else | |
295 | { | |
296 | if (strchr (special, *cp) != NULL) | |
297 | *out++ = '\\'; | |
298 | *out++ = *cp; | |
299 | } | |
03c6228e | 300 | } |
c2a727fa TT |
301 | } |
302 | } | |
303 | *out = '\0'; | |
304 | } | |
305 | else | |
306 | { | |
307 | /* In this case we can't handle arguments that contain spaces, | |
308 | tabs, or newlines -- see breakup_args(). */ | |
309 | int i; | |
310 | int length = 0; | |
311 | ||
312 | for (i = 0; i < argc; ++i) | |
313 | { | |
314 | char *cp = strchr (argv[i], ' '); | |
315 | if (cp == NULL) | |
316 | cp = strchr (argv[i], '\t'); | |
317 | if (cp == NULL) | |
318 | cp = strchr (argv[i], '\n'); | |
319 | if (cp != NULL) | |
8a3fe4f8 | 320 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
321 | length += strlen (argv[i]) + 1; |
322 | } | |
323 | ||
324 | result = (char *) xmalloc (length); | |
325 | result[0] = '\0'; | |
326 | for (i = 0; i < argc; ++i) | |
327 | { | |
328 | if (i > 0) | |
329 | strcat (result, " "); | |
330 | strcat (result, argv[i]); | |
331 | } | |
332 | } | |
333 | ||
334 | return result; | |
335 | } | |
552c04a7 TT |
336 | \f |
337 | ||
43ff13b4 JM |
338 | /* This function detects whether or not a '&' character (indicating |
339 | background execution) has been added as *the last* of the arguments ARGS | |
340 | of a command. If it has, it removes it and returns 1. Otherwise it | |
341 | does nothing and returns 0. */ | |
c5aa993b | 342 | static int |
fba45db2 | 343 | strip_bg_char (char **args) |
43ff13b4 JM |
344 | { |
345 | char *p = NULL; | |
c5aa993b | 346 | |
9846de1b | 347 | p = strchr (*args, '&'); |
c5aa993b | 348 | |
9846de1b | 349 | if (p) |
43ff13b4 JM |
350 | { |
351 | if (p == (*args + strlen (*args) - 1)) | |
352 | { | |
c5aa993b | 353 | if (strlen (*args) > 1) |
43ff13b4 JM |
354 | { |
355 | do | |
356 | p--; | |
357 | while (*p == ' ' || *p == '\t'); | |
358 | *(p + 1) = '\0'; | |
359 | } | |
360 | else | |
361 | *args = 0; | |
362 | return 1; | |
363 | } | |
364 | } | |
365 | return 0; | |
366 | } | |
367 | ||
c906108c | 368 | void |
fba45db2 | 369 | tty_command (char *file, int from_tty) |
c906108c SS |
370 | { |
371 | if (file == 0) | |
e2e0b3e5 | 372 | error_no_arg (_("terminal name for running target process")); |
c906108c | 373 | |
3cb3b8df | 374 | set_inferior_io_terminal (file); |
c906108c SS |
375 | } |
376 | ||
281b533b DJ |
377 | /* Common actions to take after creating any sort of inferior, by any |
378 | means (running, attaching, connecting, et cetera). The target | |
379 | should be stopped. */ | |
380 | ||
381 | void | |
382 | post_create_inferior (struct target_ops *target, int from_tty) | |
383 | { | |
b79599ff DP |
384 | /* Be sure we own the terminal in case write operations are performed. */ |
385 | target_terminal_ours (); | |
386 | ||
424163ea DJ |
387 | /* If the target hasn't taken care of this already, do it now. |
388 | Targets which need to access registers during to_open, | |
389 | to_create_inferior, or to_attach should do it earlier; but many | |
390 | don't need to. */ | |
391 | target_find_description (); | |
392 | ||
f698437e | 393 | /* Now that we know the register layout, retrieve current PC. */ |
fb14de7b | 394 | stop_pc = regcache_read_pc (get_current_regcache ()); |
f698437e | 395 | |
50c71eaf PA |
396 | /* If the solist is global across processes, there's no need to |
397 | refetch it here. */ | |
398 | if (exec_bfd && !gdbarch_has_global_solist (target_gdbarch)) | |
9353355f DJ |
399 | { |
400 | /* Sometimes the platform-specific hook loads initial shared | |
401 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
402 | that we can add them with the correct value for FROM_TTY. |
403 | If we made all the inferior hook methods consistent, | |
404 | this call could be removed. */ | |
9353355f DJ |
405 | #ifdef SOLIB_ADD |
406 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
407 | #else | |
408 | solib_add (NULL, from_tty, target, auto_solib_add); | |
409 | #endif | |
50c71eaf | 410 | } |
9353355f | 411 | |
50c71eaf PA |
412 | if (exec_bfd) |
413 | { | |
9353355f DJ |
414 | /* Create the hooks to handle shared library load and unload |
415 | events. */ | |
416 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 417 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
418 | #else |
419 | solib_create_inferior_hook (); | |
420 | #endif | |
9353355f DJ |
421 | } |
422 | ||
ea5d7a99 PM |
423 | /* If the user sets watchpoints before execution having started, |
424 | then she gets software watchpoints, because GDB can't know which | |
425 | target will end up being pushed, or if it supports hardware | |
426 | watchpoints or not. breakpoint_re_set takes care of promoting | |
427 | watchpoints to hardware watchpoints if possible, however, if this | |
428 | new inferior doesn't load shared libraries or we don't pull in | |
429 | symbols from any other source on this target/arch, | |
430 | breakpoint_re_set is never called. Call it now so that software | |
431 | watchpoints get a chance to be promoted to hardware watchpoints | |
432 | if the now pushed target supports hardware watchpoints. */ | |
433 | breakpoint_re_set (); | |
434 | ||
281b533b DJ |
435 | observer_notify_inferior_created (target, from_tty); |
436 | } | |
437 | ||
a4d5f2e0 JB |
438 | /* Kill the inferior if already running. This function is designed |
439 | to be called when we are about to start the execution of the program | |
440 | from the beginning. Ask the user to confirm that he wants to restart | |
441 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 442 | |
8edfe269 | 443 | static void |
a4d5f2e0 JB |
444 | kill_if_already_running (int from_tty) |
445 | { | |
39f77062 | 446 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 447 | { |
8edfe269 DJ |
448 | /* Bail out before killing the program if we will not be able to |
449 | restart it. */ | |
450 | target_require_runnable (); | |
451 | ||
adf40b2e | 452 | if (from_tty |
9e2f0ad4 HZ |
453 | && !query (_("The program being debugged has been started already.\n\ |
454 | Start it from the beginning? "))) | |
8a3fe4f8 | 455 | error (_("Program not restarted.")); |
c906108c | 456 | target_kill (); |
c906108c | 457 | } |
a4d5f2e0 JB |
458 | } |
459 | ||
f67a969f JB |
460 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
461 | a temporary breakpoint at the begining of the main program before | |
462 | running the program. */ | |
463 | ||
a4d5f2e0 | 464 | static void |
f67a969f | 465 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
466 | { |
467 | char *exec_file; | |
29f49a6a PA |
468 | struct cleanup *old_chain; |
469 | ptid_t ptid; | |
c906108c | 470 | |
a4d5f2e0 JB |
471 | dont_repeat (); |
472 | ||
473 | kill_if_already_running (from_tty); | |
3c35e65b UW |
474 | |
475 | init_wait_for_inferior (); | |
c906108c SS |
476 | clear_breakpoint_hit_counts (); |
477 | ||
fd79ecee DJ |
478 | /* Clean up any leftovers from other runs. Some other things from |
479 | this function should probably be moved into target_pre_inferior. */ | |
480 | target_pre_inferior (from_tty); | |
481 | ||
39ad761d JB |
482 | /* The comment here used to read, "The exec file is re-read every |
483 | time we do a generic_mourn_inferior, so we just have to worry | |
484 | about the symbol file." The `generic_mourn_inferior' function | |
485 | gets called whenever the program exits. However, suppose the | |
486 | program exits, and *then* the executable file changes? We need | |
487 | to check again here. Since reopen_exec_file doesn't do anything | |
488 | if the timestamp hasn't changed, I don't see the harm. */ | |
489 | reopen_exec_file (); | |
c906108c SS |
490 | reread_symbols (); |
491 | ||
f67a969f JB |
492 | /* Insert the temporary breakpoint if a location was specified. */ |
493 | if (tbreak_at_main) | |
494 | tbreak_command (main_name (), 0); | |
495 | ||
39ad761d JB |
496 | exec_file = (char *) get_exec_file (0); |
497 | ||
9908b566 VP |
498 | if (non_stop && !target_supports_non_stop ()) |
499 | error (_("The target does not support running in non-stop mode.")); | |
500 | ||
c906108c SS |
501 | /* We keep symbols from add-symbol-file, on the grounds that the |
502 | user might want to add some symbols before running the program | |
503 | (right?). But sometimes (dynamic loading where the user manually | |
504 | introduces the new symbols with add-symbol-file), the code which | |
505 | the symbols describe does not persist between runs. Currently | |
506 | the user has to manually nuke all symbols between runs if they | |
507 | want them to go away (PR 2207). This is probably reasonable. */ | |
508 | ||
43ff13b4 | 509 | if (!args) |
6426a772 | 510 | { |
362646f5 | 511 | if (target_can_async_p ()) |
6426a772 JM |
512 | async_disable_stdin (); |
513 | } | |
43ff13b4 | 514 | else |
c906108c | 515 | { |
43ff13b4 JM |
516 | int async_exec = strip_bg_char (&args); |
517 | ||
518 | /* If we get a request for running in the bg but the target | |
519 | doesn't support it, error out. */ | |
362646f5 | 520 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 521 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
522 | |
523 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 524 | to simulate synchronous (fg) execution. */ |
362646f5 | 525 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
526 | { |
527 | /* Simulate synchronous execution */ | |
6426a772 | 528 | async_disable_stdin (); |
43ff13b4 JM |
529 | } |
530 | ||
531 | /* If there were other args, beside '&', process them. */ | |
532 | if (args) | |
533 | { | |
07091751 FN |
534 | char *old_args = set_inferior_args (xstrdup (args)); |
535 | xfree (old_args); | |
43ff13b4 | 536 | } |
c906108c SS |
537 | } |
538 | ||
539 | if (from_tty) | |
540 | { | |
8b93c638 JM |
541 | ui_out_field_string (uiout, NULL, "Starting program"); |
542 | ui_out_text (uiout, ": "); | |
543 | if (exec_file) | |
544 | ui_out_field_string (uiout, "execfile", exec_file); | |
545 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
546 | /* We call get_inferior_args() because we might need to compute |
547 | the value now. */ | |
548 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
549 | ui_out_text (uiout, "\n"); |
550 | ui_out_flush (uiout); | |
c906108c SS |
551 | } |
552 | ||
552c04a7 TT |
553 | /* We call get_inferior_args() because we might need to compute |
554 | the value now. */ | |
555 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 556 | environ_vector (inferior_environ), from_tty); |
281b533b | 557 | |
29f49a6a PA |
558 | /* We're starting off a new process. When we get out of here, in |
559 | non-stop mode, finish the state of all threads of that process, | |
560 | but leave other threads alone, as they may be stopped in internal | |
561 | events --- the frontend shouldn't see them as stopped. In | |
562 | all-stop, always finish the state of all threads, as we may be | |
563 | resuming more than just the new process. */ | |
564 | if (non_stop) | |
565 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
566 | else | |
567 | ptid = minus_one_ptid; | |
568 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
569 | ||
de1b3c3d PA |
570 | /* Pass zero for FROM_TTY, because at this point the "run" command |
571 | has done its thing; now we are setting up the running program. */ | |
572 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
573 | |
574 | /* Start the target running. */ | |
575 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c | 576 | |
29f49a6a PA |
577 | /* Since there was no error, there's no need to finish the thread |
578 | states here. */ | |
579 | discard_cleanups (old_chain); | |
580 | } | |
c906108c | 581 | |
f67a969f JB |
582 | static void |
583 | run_command (char *args, int from_tty) | |
584 | { | |
585 | run_command_1 (args, from_tty, 0); | |
586 | } | |
587 | ||
c906108c | 588 | static void |
fba45db2 | 589 | run_no_args_command (char *args, int from_tty) |
c906108c | 590 | { |
07091751 FN |
591 | char *old_args = set_inferior_args (xstrdup ("")); |
592 | xfree (old_args); | |
c906108c | 593 | } |
c906108c | 594 | \f |
c5aa993b | 595 | |
a4d5f2e0 JB |
596 | /* Start the execution of the program up until the beginning of the main |
597 | program. */ | |
598 | ||
599 | static void | |
600 | start_command (char *args, int from_tty) | |
601 | { | |
602 | /* Some languages such as Ada need to search inside the program | |
603 | minimal symbols for the location where to put the temporary | |
604 | breakpoint before starting. */ | |
605 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 606 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 607 | |
f67a969f JB |
608 | /* Run the program until reaching the main procedure... */ |
609 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
610 | } |
611 | ||
8cae4b3f PA |
612 | static int |
613 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
614 | { | |
74531fed PA |
615 | /* We go through all threads individually instead of compressing |
616 | into a single target `resume_all' request, because some threads | |
617 | may be stopped in internal breakpoints/events, or stopped waiting | |
618 | for its turn in the displaced stepping queue (that is, they are | |
619 | running && !executing). The target side has no idea about why | |
620 | the thread is stopped, so a `resume_all' command would resume too | |
621 | much. If/when GDB gains a way to tell the target `hold this | |
622 | thread stopped until I say otherwise', then we can optimize | |
623 | this. */ | |
4f8d22e3 | 624 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
625 | return 0; |
626 | ||
dcf4fbde | 627 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
628 | clear_proceed_status (); |
629 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
630 | return 0; | |
631 | } | |
632 | ||
d729566a PA |
633 | void |
634 | ensure_valid_thread (void) | |
635 | { | |
636 | if (ptid_equal (inferior_ptid, null_ptid) | |
637 | || is_exited (inferior_ptid)) | |
638 | error (_("\ | |
639 | Cannot execute this command without a live selected thread.")); | |
640 | } | |
641 | ||
77ebaa5a VP |
642 | void |
643 | continue_1 (int all_threads) | |
644 | { | |
3d488bfc PA |
645 | ERROR_NO_INFERIOR; |
646 | ||
77ebaa5a VP |
647 | if (non_stop && all_threads) |
648 | { | |
649 | /* Don't error out if the current thread is running, because | |
650 | there may be other stopped threads. */ | |
651 | struct cleanup *old_chain; | |
652 | ||
653 | /* Backup current thread and selected frame. */ | |
654 | old_chain = make_cleanup_restore_current_thread (); | |
655 | ||
656 | iterate_over_threads (proceed_thread_callback, NULL); | |
657 | ||
658 | /* Restore selected ptid. */ | |
659 | do_cleanups (old_chain); | |
660 | } | |
661 | else | |
662 | { | |
d729566a | 663 | ensure_valid_thread (); |
77ebaa5a VP |
664 | ensure_not_running (); |
665 | clear_proceed_status (); | |
666 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
667 | } | |
668 | } | |
669 | ||
8cae4b3f | 670 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 671 | void |
8cae4b3f | 672 | continue_command (char *args, int from_tty) |
c906108c | 673 | { |
c5aa993b | 674 | int async_exec = 0; |
8cae4b3f | 675 | int all_threads = 0; |
c906108c SS |
676 | ERROR_NO_INFERIOR; |
677 | ||
43ff13b4 | 678 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
679 | if (args != NULL) |
680 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
681 | |
682 | /* If we must run in the background, but the target can't do it, | |
683 | error out. */ | |
362646f5 | 684 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 685 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
686 | |
687 | /* If we are not asked to run in the bg, then prepare to run in the | |
688 | foreground, synchronously. */ | |
362646f5 | 689 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 690 | { |
43ff13b4 | 691 | /* Simulate synchronous execution */ |
6426a772 | 692 | async_disable_stdin (); |
43ff13b4 | 693 | } |
c906108c | 694 | |
8cae4b3f PA |
695 | if (args != NULL) |
696 | { | |
697 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
698 | { | |
699 | all_threads = 1; | |
700 | args += sizeof ("-a") - 1; | |
701 | if (*args == '\0') | |
702 | args = NULL; | |
703 | } | |
704 | } | |
705 | ||
706 | if (!non_stop && all_threads) | |
707 | error (_("`-a' is meaningless in all-stop mode.")); | |
708 | ||
709 | if (args != NULL && all_threads) | |
710 | error (_("\ | |
711 | Can't resume all threads and specify proceed count simultaneously.")); | |
712 | ||
713 | /* If we have an argument left, set proceed count of breakpoint we | |
714 | stopped at. */ | |
715 | if (args != NULL) | |
c906108c | 716 | { |
347bddb7 | 717 | bpstat bs = NULL; |
8671a17b PA |
718 | int num, stat; |
719 | int stopped = 0; | |
347bddb7 PA |
720 | struct thread_info *tp; |
721 | ||
722 | if (non_stop) | |
e09875d4 | 723 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
724 | else |
725 | { | |
726 | ptid_t last_ptid; | |
727 | struct target_waitstatus ws; | |
728 | ||
729 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 730 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
731 | } |
732 | if (tp != NULL) | |
733 | bs = tp->stop_bpstat; | |
8671a17b PA |
734 | |
735 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
736 | if (stat > 0) | |
737 | { | |
738 | set_ignore_count (num, | |
8cae4b3f | 739 | parse_and_eval_long (args) - 1, |
8671a17b PA |
740 | from_tty); |
741 | /* set_ignore_count prints a message ending with a period. | |
742 | So print two spaces before "Continuing.". */ | |
743 | if (from_tty) | |
744 | printf_filtered (" "); | |
745 | stopped = 1; | |
746 | } | |
747 | ||
748 | if (!stopped && from_tty) | |
c906108c SS |
749 | { |
750 | printf_filtered | |
751 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
752 | } | |
c906108c SS |
753 | } |
754 | ||
755 | if (from_tty) | |
a3f17187 | 756 | printf_filtered (_("Continuing.\n")); |
c906108c | 757 | |
77ebaa5a | 758 | continue_1 (all_threads); |
c906108c SS |
759 | } |
760 | \f | |
761 | /* Step until outside of current statement. */ | |
762 | ||
c906108c | 763 | static void |
fba45db2 | 764 | step_command (char *count_string, int from_tty) |
c906108c SS |
765 | { |
766 | step_1 (0, 0, count_string); | |
767 | } | |
768 | ||
769 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
770 | ||
c906108c | 771 | static void |
fba45db2 | 772 | next_command (char *count_string, int from_tty) |
c906108c SS |
773 | { |
774 | step_1 (1, 0, count_string); | |
775 | } | |
776 | ||
777 | /* Likewise, but step only one instruction. */ | |
778 | ||
c906108c | 779 | void |
fba45db2 | 780 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
781 | { |
782 | step_1 (0, 1, count_string); | |
783 | } | |
784 | ||
c906108c | 785 | void |
fba45db2 | 786 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
787 | { |
788 | step_1 (1, 1, count_string); | |
789 | } | |
790 | ||
74b7792f | 791 | static void |
611c83ae | 792 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 793 | { |
611c83ae PA |
794 | int thread = * (int *) arg; |
795 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
796 | } |
797 | ||
c906108c | 798 | static void |
fba45db2 | 799 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 800 | { |
52f0bd74 | 801 | int count = 1; |
c906108c | 802 | struct frame_info *frame; |
f107f563 | 803 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 804 | int async_exec = 0; |
b3dc826b | 805 | int thread = -1; |
c5aa993b | 806 | |
c906108c | 807 | ERROR_NO_INFERIOR; |
d729566a | 808 | ensure_valid_thread (); |
94cc34af | 809 | ensure_not_running (); |
43ff13b4 JM |
810 | |
811 | if (count_string) | |
812 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 813 | |
43ff13b4 JM |
814 | /* If we get a request for running in the bg but the target |
815 | doesn't support it, error out. */ | |
362646f5 | 816 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 817 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
818 | |
819 | /* If we don't get a request of running in the bg, then we need | |
820 | to simulate synchronous (fg) execution. */ | |
362646f5 | 821 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
822 | { |
823 | /* Simulate synchronous execution */ | |
6426a772 | 824 | async_disable_stdin (); |
43ff13b4 JM |
825 | } |
826 | ||
bb518678 | 827 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 828 | |
c5aa993b | 829 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 830 | { |
611c83ae | 831 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 832 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
833 | |
834 | set_longjmp_breakpoint (); | |
835 | ||
b3dc826b | 836 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
837 | } |
838 | ||
37d94800 | 839 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 840 | if (!target_can_async_p ()) |
c2d11a7d JM |
841 | { |
842 | for (; count > 0; count--) | |
843 | { | |
37d94800 PA |
844 | struct thread_info *tp; |
845 | step_once (skip_subroutines, single_inst, count, thread); | |
c2d11a7d | 846 | |
37d94800 PA |
847 | if (target_has_execution |
848 | && !ptid_equal (inferior_ptid, null_ptid)) | |
849 | tp = inferior_thread (); | |
c2d11a7d | 850 | else |
37d94800 PA |
851 | tp = NULL; |
852 | ||
853 | if (!tp || !tp->stop_step || !tp->step_multi) | |
c2d11a7d | 854 | { |
37d94800 PA |
855 | /* If we stopped for some reason that is not stepping |
856 | there are no further steps to make. */ | |
857 | if (tp) | |
858 | tp->step_multi = 0; | |
859 | break; | |
c2d11a7d | 860 | } |
c2d11a7d JM |
861 | } |
862 | ||
f107f563 | 863 | do_cleanups (cleanups); |
c2d11a7d | 864 | } |
c2d11a7d JM |
865 | else |
866 | { | |
37d94800 PA |
867 | /* In the case of an asynchronous target things get complicated; |
868 | do only one step for now, before returning control to the | |
869 | event loop. Let the continuation figure out how many other | |
870 | steps we need to do, and handle them one at the time, through | |
871 | step_once. */ | |
b3dc826b | 872 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 873 | |
611c83ae | 874 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
875 | disable the longjmp breakpoint as appropriate. */ |
876 | discard_cleanups (cleanups); | |
c906108c | 877 | } |
c2d11a7d | 878 | } |
c906108c | 879 | |
bfec99b2 PA |
880 | struct step_1_continuation_args |
881 | { | |
882 | int count; | |
883 | int skip_subroutines; | |
884 | int single_inst; | |
885 | int thread; | |
886 | }; | |
887 | ||
c2d11a7d JM |
888 | /* Called after we are done with one step operation, to check whether |
889 | we need to step again, before we print the prompt and return control | |
890 | to the user. If count is > 1, we will need to do one more call to | |
891 | proceed(), via step_once(). Basically it is like step_once and | |
892 | step_1_continuation are co-recursive. */ | |
893 | static void | |
604ead4a | 894 | step_1_continuation (void *args) |
c2d11a7d | 895 | { |
bfec99b2 | 896 | struct step_1_continuation_args *a = args; |
f13468d9 | 897 | |
af679fd0 | 898 | if (target_has_execution) |
f13468d9 | 899 | { |
af679fd0 PA |
900 | struct thread_info *tp; |
901 | ||
902 | tp = inferior_thread (); | |
414c69f7 | 903 | if (tp->step_multi && tp->stop_step) |
af679fd0 PA |
904 | { |
905 | /* There are more steps to make, and we did stop due to | |
906 | ending a stepping range. Do another step. */ | |
37d94800 PA |
907 | step_once (a->skip_subroutines, a->single_inst, |
908 | a->count - 1, a->thread); | |
af679fd0 PA |
909 | return; |
910 | } | |
911 | tp->step_multi = 0; | |
f107f563 | 912 | } |
af679fd0 PA |
913 | |
914 | /* We either stopped for some reason that is not stepping, or there | |
915 | are no further steps to make. Cleanup. */ | |
916 | if (!a->single_inst || a->skip_subroutines) | |
917 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
918 | } |
919 | ||
37d94800 PA |
920 | /* Do just one step operation. This is useful to implement the 'step |
921 | n' kind of commands. In case of asynchronous targets, we will have | |
922 | to set up a continuation to be done after the target stops (after | |
923 | this one step). For synch targets, the caller handles further | |
924 | stepping. */ | |
925 | ||
926 | static void | |
611c83ae | 927 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 928 | { |
0d06e24b | 929 | struct frame_info *frame; |
c2d11a7d JM |
930 | |
931 | if (count > 0) | |
c906108c | 932 | { |
4e1c45ea PA |
933 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
934 | the longjmp breakpoint was not required. Use the | |
935 | INFERIOR_PTID thread instead, which is the same thread when | |
936 | THREAD is set. */ | |
937 | struct thread_info *tp = inferior_thread (); | |
c906108c SS |
938 | clear_proceed_status (); |
939 | ||
940 | frame = get_current_frame (); | |
4e1c45ea | 941 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 942 | |
c5aa993b | 943 | if (!single_inst) |
c906108c | 944 | { |
1641cfcc PA |
945 | CORE_ADDR pc; |
946 | ||
947 | pc = get_frame_pc (frame); | |
948 | find_pc_line_pc_range (pc, | |
4e1c45ea | 949 | &tp->step_range_start, &tp->step_range_end); |
5fbbeb29 CF |
950 | |
951 | /* If we have no line info, switch to stepi mode. */ | |
4e1c45ea | 952 | if (tp->step_range_end == 0 && step_stop_if_no_debug) |
5fbbeb29 | 953 | { |
4e1c45ea | 954 | tp->step_range_start = tp->step_range_end = 1; |
5fbbeb29 | 955 | } |
4e1c45ea | 956 | else if (tp->step_range_end == 0) |
c906108c SS |
957 | { |
958 | char *name; | |
1641cfcc | 959 | if (find_pc_partial_function (pc, &name, |
4e1c45ea PA |
960 | &tp->step_range_start, |
961 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 962 | error (_("Cannot find bounds of current function")); |
c906108c SS |
963 | |
964 | target_terminal_ours (); | |
a3f17187 | 965 | printf_filtered (_("\ |
c906108c | 966 | Single stepping until exit from function %s, \n\ |
a3f17187 | 967 | which has no line number information.\n"), name); |
c906108c SS |
968 | } |
969 | } | |
970 | else | |
971 | { | |
972 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 973 | tp->step_range_start = tp->step_range_end = 1; |
c906108c SS |
974 | if (!skip_subroutines) |
975 | /* It is stepi. | |
976 | Don't step over function calls, not even to functions lacking | |
977 | line numbers. */ | |
078130d0 | 978 | tp->step_over_calls = STEP_OVER_NONE; |
c906108c SS |
979 | } |
980 | ||
981 | if (skip_subroutines) | |
078130d0 | 982 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c | 983 | |
95e54da7 | 984 | tp->step_multi = (count > 1); |
f107f563 | 985 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 | 986 | |
37d94800 PA |
987 | /* For async targets, register a continuation to do any |
988 | additional steps. For sync targets, the caller will handle | |
989 | further stepping. */ | |
990 | if (target_can_async_p ()) | |
991 | { | |
992 | struct step_1_continuation_args *args; | |
993 | ||
994 | args = xmalloc (sizeof (*args)); | |
995 | args->skip_subroutines = skip_subroutines; | |
996 | args->single_inst = single_inst; | |
997 | args->count = count; | |
998 | args->thread = thread; | |
999 | ||
1000 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1001 | } | |
c906108c | 1002 | } |
c906108c | 1003 | } |
c2d11a7d | 1004 | |
c906108c SS |
1005 | \f |
1006 | /* Continue program at specified address. */ | |
1007 | ||
1008 | static void | |
fba45db2 | 1009 | jump_command (char *arg, int from_tty) |
c906108c | 1010 | { |
52f0bd74 | 1011 | CORE_ADDR addr; |
c906108c SS |
1012 | struct symtabs_and_lines sals; |
1013 | struct symtab_and_line sal; | |
1014 | struct symbol *fn; | |
1015 | struct symbol *sfn; | |
43ff13b4 | 1016 | int async_exec = 0; |
c5aa993b | 1017 | |
c906108c | 1018 | ERROR_NO_INFERIOR; |
d729566a | 1019 | ensure_valid_thread (); |
94cc34af | 1020 | ensure_not_running (); |
c906108c | 1021 | |
43ff13b4 JM |
1022 | /* Find out whether we must run in the background. */ |
1023 | if (arg != NULL) | |
1024 | async_exec = strip_bg_char (&arg); | |
1025 | ||
1026 | /* If we must run in the background, but the target can't do it, | |
1027 | error out. */ | |
362646f5 | 1028 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1029 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1030 | |
c906108c | 1031 | if (!arg) |
e2e0b3e5 | 1032 | error_no_arg (_("starting address")); |
c906108c SS |
1033 | |
1034 | sals = decode_line_spec_1 (arg, 1); | |
1035 | if (sals.nelts != 1) | |
1036 | { | |
8a3fe4f8 | 1037 | error (_("Unreasonable jump request")); |
c906108c SS |
1038 | } |
1039 | ||
1040 | sal = sals.sals[0]; | |
b8c9b27d | 1041 | xfree (sals.sals); |
c906108c SS |
1042 | |
1043 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1044 | error (_("No source file has been specified.")); |
c906108c | 1045 | |
c5aa993b | 1046 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1047 | |
1048 | /* See if we are trying to jump to another function. */ | |
1049 | fn = get_frame_function (get_current_frame ()); | |
1050 | sfn = find_pc_function (sal.pc); | |
1051 | if (fn != NULL && sfn != fn) | |
1052 | { | |
9e2f0ad4 | 1053 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1054 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1055 | { |
8a3fe4f8 | 1056 | error (_("Not confirmed.")); |
c906108c SS |
1057 | /* NOTREACHED */ |
1058 | } | |
1059 | } | |
1060 | ||
c5aa993b | 1061 | if (sfn != NULL) |
c906108c SS |
1062 | { |
1063 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1064 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1065 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1066 | { |
9e2f0ad4 | 1067 | if (!query (_("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))) |
c906108c | 1068 | { |
8a3fe4f8 | 1069 | error (_("Not confirmed.")); |
c906108c SS |
1070 | /* NOTREACHED */ |
1071 | } | |
1072 | } | |
1073 | } | |
1074 | ||
c906108c SS |
1075 | addr = sal.pc; |
1076 | ||
1077 | if (from_tty) | |
1078 | { | |
a3f17187 | 1079 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1080 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1081 | printf_filtered (".\n"); |
1082 | } | |
1083 | ||
89113898 PA |
1084 | /* If we are not asked to run in the bg, then prepare to run in the |
1085 | foreground, synchronously. */ | |
1086 | if (!async_exec && target_can_async_p ()) | |
1087 | { | |
1088 | /* Simulate synchronous execution */ | |
1089 | async_disable_stdin (); | |
1090 | } | |
1091 | ||
c906108c SS |
1092 | clear_proceed_status (); |
1093 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1094 | } | |
c906108c | 1095 | \f |
c5aa993b | 1096 | |
c906108c SS |
1097 | /* Go to line or address in current procedure */ |
1098 | static void | |
fba45db2 | 1099 | go_command (char *line_no, int from_tty) |
c906108c | 1100 | { |
c5aa993b | 1101 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1102 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1103 | else |
1104 | { | |
b83266a0 SS |
1105 | tbreak_command (line_no, from_tty); |
1106 | jump_command (line_no, from_tty); | |
c906108c SS |
1107 | } |
1108 | } | |
c906108c | 1109 | \f |
c5aa993b | 1110 | |
c906108c SS |
1111 | /* Continue program giving it specified signal. */ |
1112 | ||
1113 | static void | |
fba45db2 | 1114 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1115 | { |
1116 | enum target_signal oursig; | |
32c1e744 | 1117 | int async_exec = 0; |
c906108c SS |
1118 | |
1119 | dont_repeat (); /* Too dangerous. */ | |
1120 | ERROR_NO_INFERIOR; | |
d729566a | 1121 | ensure_valid_thread (); |
94cc34af | 1122 | ensure_not_running (); |
c906108c | 1123 | |
32c1e744 VP |
1124 | /* Find out whether we must run in the background. */ |
1125 | if (signum_exp != NULL) | |
1126 | async_exec = strip_bg_char (&signum_exp); | |
1127 | ||
1128 | /* If we must run in the background, but the target can't do it, | |
1129 | error out. */ | |
1130 | if (async_exec && !target_can_async_p ()) | |
1131 | error (_("Asynchronous execution not supported on this target.")); | |
1132 | ||
1133 | /* If we are not asked to run in the bg, then prepare to run in the | |
1134 | foreground, synchronously. */ | |
1135 | if (!async_exec && target_can_async_p ()) | |
1136 | { | |
1137 | /* Simulate synchronous execution. */ | |
1138 | async_disable_stdin (); | |
1139 | } | |
1140 | ||
c906108c | 1141 | if (!signum_exp) |
e2e0b3e5 | 1142 | error_no_arg (_("signal number")); |
c906108c SS |
1143 | |
1144 | /* It would be even slicker to make signal names be valid expressions, | |
1145 | (the type could be "enum $signal" or some such), then the user could | |
1146 | assign them to convenience variables. */ | |
1147 | oursig = target_signal_from_name (signum_exp); | |
1148 | ||
1149 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1150 | { | |
1151 | /* No, try numeric. */ | |
bb518678 | 1152 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1153 | |
1154 | if (num == 0) | |
1155 | oursig = TARGET_SIGNAL_0; | |
1156 | else | |
1157 | oursig = target_signal_from_command (num); | |
1158 | } | |
1159 | ||
1160 | if (from_tty) | |
1161 | { | |
1162 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1163 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1164 | else |
a3f17187 | 1165 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1166 | target_signal_to_name (oursig)); |
1167 | } | |
1168 | ||
1169 | clear_proceed_status (); | |
a12cc160 | 1170 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1171 | } |
1172 | ||
c906108c SS |
1173 | /* Proceed until we reach a different source line with pc greater than |
1174 | our current one or exit the function. We skip calls in both cases. | |
1175 | ||
1176 | Note that eventually this command should probably be changed so | |
1177 | that only source lines are printed out when we hit the breakpoint | |
1178 | we set. This may involve changes to wait_for_inferior and the | |
1179 | proceed status code. */ | |
1180 | ||
c906108c | 1181 | static void |
fba45db2 | 1182 | until_next_command (int from_tty) |
c906108c SS |
1183 | { |
1184 | struct frame_info *frame; | |
1185 | CORE_ADDR pc; | |
1186 | struct symbol *func; | |
1187 | struct symtab_and_line sal; | |
4e1c45ea | 1188 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1189 | |
c906108c SS |
1190 | clear_proceed_status (); |
1191 | ||
1192 | frame = get_current_frame (); | |
1193 | ||
1194 | /* Step until either exited from this function or greater | |
1195 | than the current line (if in symbolic section) or pc (if | |
1196 | not). */ | |
1197 | ||
1c7819ef | 1198 | pc = get_frame_pc (frame); |
c906108c | 1199 | func = find_pc_function (pc); |
c5aa993b | 1200 | |
c906108c SS |
1201 | if (!func) |
1202 | { | |
1203 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1204 | |
c906108c | 1205 | if (msymbol == NULL) |
8a3fe4f8 | 1206 | error (_("Execution is not within a known function.")); |
c5aa993b | 1207 | |
4e1c45ea PA |
1208 | tp->step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1209 | tp->step_range_end = pc; | |
c906108c SS |
1210 | } |
1211 | else | |
1212 | { | |
1213 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1214 | |
4e1c45ea PA |
1215 | tp->step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1216 | tp->step_range_end = sal.end; | |
c906108c | 1217 | } |
c5aa993b | 1218 | |
078130d0 | 1219 | tp->step_over_calls = STEP_OVER_ALL; |
4e1c45ea | 1220 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 1221 | |
af679fd0 | 1222 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1223 | |
2acceee2 | 1224 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1225 | } |
1226 | ||
c5aa993b | 1227 | static void |
fba45db2 | 1228 | until_command (char *arg, int from_tty) |
c906108c | 1229 | { |
43ff13b4 JM |
1230 | int async_exec = 0; |
1231 | ||
c906108c | 1232 | if (!target_has_execution) |
8a3fe4f8 | 1233 | error (_("The program is not running.")); |
43ff13b4 JM |
1234 | |
1235 | /* Find out whether we must run in the background. */ | |
1236 | if (arg != NULL) | |
1237 | async_exec = strip_bg_char (&arg); | |
1238 | ||
1239 | /* If we must run in the background, but the target can't do it, | |
1240 | error out. */ | |
362646f5 | 1241 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1242 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1243 | |
1244 | /* If we are not asked to run in the bg, then prepare to run in the | |
1245 | foreground, synchronously. */ | |
362646f5 | 1246 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1247 | { |
43ff13b4 | 1248 | /* Simulate synchronous execution */ |
6426a772 | 1249 | async_disable_stdin (); |
43ff13b4 JM |
1250 | } |
1251 | ||
c906108c | 1252 | if (arg) |
ae66c1fc | 1253 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1254 | else |
1255 | until_next_command (from_tty); | |
1256 | } | |
ae66c1fc EZ |
1257 | |
1258 | static void | |
1259 | advance_command (char *arg, int from_tty) | |
1260 | { | |
1261 | int async_exec = 0; | |
1262 | ||
1263 | if (!target_has_execution) | |
8a3fe4f8 | 1264 | error (_("The program is not running.")); |
ae66c1fc EZ |
1265 | |
1266 | if (arg == NULL) | |
e2e0b3e5 | 1267 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1268 | |
1269 | /* Find out whether we must run in the background. */ | |
1270 | if (arg != NULL) | |
1271 | async_exec = strip_bg_char (&arg); | |
1272 | ||
1273 | /* If we must run in the background, but the target can't do it, | |
1274 | error out. */ | |
362646f5 | 1275 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1276 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1277 | |
1278 | /* If we are not asked to run in the bg, then prepare to run in the | |
1279 | foreground, synchronously. */ | |
362646f5 | 1280 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1281 | { |
1282 | /* Simulate synchronous execution. */ | |
1283 | async_disable_stdin (); | |
1284 | } | |
1285 | ||
1286 | until_break_command (arg, from_tty, 1); | |
1287 | } | |
c906108c | 1288 | \f |
f941662f MK |
1289 | /* Print the result of a function at the end of a 'finish' command. */ |
1290 | ||
11cf8741 | 1291 | static void |
c055b101 | 1292 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1293 | { |
d80b854b | 1294 | struct gdbarch *gdbarch = get_regcache_arch (stop_registers); |
bb472c1e MK |
1295 | struct cleanup *old_chain; |
1296 | struct ui_stream *stb; | |
44e5158b AC |
1297 | struct value *value; |
1298 | ||
181fc57c | 1299 | CHECK_TYPEDEF (value_type); |
44e5158b | 1300 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1301 | |
92ad9cd9 AC |
1302 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1303 | call, it's possible (with no help from the architecture vector) | |
1304 | to locate and return/print a "struct return" value. This is just | |
1305 | a more complicated case of what is already being done in in the | |
1306 | inferior function call code. In fact, when inferior function | |
1307 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1308 | |
c055b101 CV |
1309 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1310 | NULL, NULL, NULL)) | |
44e5158b | 1311 | { |
750eb019 AC |
1312 | case RETURN_VALUE_REGISTER_CONVENTION: |
1313 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1314 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1315 | value = allocate_value (value_type); |
c055b101 | 1316 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1317 | value_contents_raw (value), NULL); |
750eb019 AC |
1318 | break; |
1319 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1320 | value = NULL; | |
1321 | break; | |
1322 | default: | |
e2e0b3e5 | 1323 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1324 | } |
bb472c1e | 1325 | |
31db7b6c MK |
1326 | if (value) |
1327 | { | |
79a45b7d TT |
1328 | struct value_print_options opts; |
1329 | ||
31db7b6c | 1330 | /* Print it. */ |
1d751abe PA |
1331 | stb = ui_out_stream_new (uiout); |
1332 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1333 | ui_out_text (uiout, "Value returned is "); |
1334 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1335 | record_latest_value (value)); | |
1336 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1337 | get_raw_print_options (&opts); |
1338 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1339 | ui_out_field_stream (uiout, "return-value", stb); |
1340 | ui_out_text (uiout, "\n"); | |
1d751abe | 1341 | do_cleanups (old_chain); |
31db7b6c MK |
1342 | } |
1343 | else | |
1344 | { | |
1345 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1346 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1347 | ui_out_text (uiout, "."); | |
1348 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1349 | } |
11cf8741 JM |
1350 | } |
1351 | ||
43ff13b4 | 1352 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1353 | has stopped. In asynchronous mode, we wait for the target to stop |
1354 | in the call to poll or select in the event loop, so it is | |
1355 | impossible to do all the stuff as part of the finish_command | |
1356 | function itself. The only chance we have to complete this command | |
1357 | is in fetch_inferior_event, which is called by the event loop as | |
1358 | soon as it detects that the target has stopped. This function is | |
1359 | called via the cmd_continuation pointer. */ | |
1360 | ||
bfec99b2 | 1361 | struct finish_command_continuation_args |
43ff13b4 | 1362 | { |
43ff13b4 | 1363 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1364 | struct symbol *function; |
1365 | }; | |
c5aa993b | 1366 | |
bfec99b2 | 1367 | static void |
604ead4a | 1368 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1369 | { |
1370 | struct finish_command_continuation_args *a = arg; | |
41d2bdb4 | 1371 | struct thread_info *tp = NULL; |
347bddb7 PA |
1372 | bpstat bs = NULL; |
1373 | ||
1374 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1375 | && target_has_execution | |
1376 | && is_stopped (inferior_ptid)) | |
41d2bdb4 PA |
1377 | { |
1378 | tp = inferior_thread (); | |
1379 | bs = tp->stop_bpstat; | |
1380 | } | |
347bddb7 PA |
1381 | |
1382 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1383 | && a->function != NULL) |
43ff13b4 | 1384 | { |
604ead4a | 1385 | struct type *value_type; |
bfec99b2 | 1386 | |
604ead4a PA |
1387 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1388 | if (!value_type) | |
1389 | internal_error (__FILE__, __LINE__, | |
1390 | _("finish_command: function has no target type")); | |
f5871ec0 | 1391 | |
604ead4a PA |
1392 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
1393 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
43ff13b4 | 1394 | } |
f941662f | 1395 | |
604ead4a | 1396 | /* We suppress normal call of normal_stop observer and do it here so |
41d2bdb4 PA |
1397 | that the *stopped notification includes the return value. */ |
1398 | if (bs != NULL && tp->proceed_to_finish) | |
1399 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
bfec99b2 | 1400 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1401 | } |
1402 | ||
604ead4a PA |
1403 | static void |
1404 | finish_command_continuation_free_arg (void *arg) | |
1405 | { | |
604ead4a PA |
1406 | xfree (arg); |
1407 | } | |
1408 | ||
b2175913 MS |
1409 | /* finish_backward -- helper function for finish_command. */ |
1410 | ||
1411 | static void | |
1412 | finish_backward (struct symbol *function) | |
1413 | { | |
1414 | struct symtab_and_line sal; | |
1415 | struct thread_info *tp = inferior_thread (); | |
1416 | struct breakpoint *breakpoint; | |
1417 | struct cleanup *old_chain; | |
1c7819ef | 1418 | CORE_ADDR pc; |
b2175913 MS |
1419 | CORE_ADDR func_addr; |
1420 | int back_up; | |
1421 | ||
1c7819ef PA |
1422 | pc = get_frame_pc (get_current_frame ()); |
1423 | ||
1424 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1425 | internal_error (__FILE__, __LINE__, |
1426 | _("Finish: couldn't find function.")); | |
1427 | ||
1428 | sal = find_pc_line (func_addr, 0); | |
1429 | ||
1430 | /* We don't need a return value. */ | |
1431 | tp->proceed_to_finish = 0; | |
1432 | /* Special case: if we're sitting at the function entry point, | |
1433 | then all we need to do is take a reverse singlestep. We | |
1434 | don't need to set a breakpoint, and indeed it would do us | |
1435 | no good to do so. | |
1436 | ||
1437 | Note that this can only happen at frame #0, since there's | |
1438 | no way that a function up the stack can have a return address | |
1439 | that's equal to its entry point. */ | |
1440 | ||
1c7819ef | 1441 | if (sal.pc != pc) |
b2175913 MS |
1442 | { |
1443 | /* Set breakpoint and continue. */ | |
1444 | breakpoint = | |
1445 | set_momentary_breakpoint (sal, | |
1446 | get_frame_id (get_selected_frame (NULL)), | |
1447 | bp_breakpoint); | |
1448 | /* Tell the breakpoint to keep quiet. We won't be done | |
1449 | until we've done another reverse single-step. */ | |
1450 | make_breakpoint_silent (breakpoint); | |
1451 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1452 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1453 | /* We will be stopped when proceed returns. */ | |
1454 | back_up = bpstat_find_breakpoint (tp->stop_bpstat, breakpoint) != NULL; | |
1455 | do_cleanups (old_chain); | |
1456 | } | |
1457 | else | |
1458 | back_up = 1; | |
1459 | if (back_up) | |
1460 | { | |
1461 | /* If in fact we hit the step-resume breakpoint (and not | |
1462 | some other breakpoint), then we're almost there -- | |
1463 | we just need to back up by one more single-step. */ | |
1464 | tp->step_range_start = tp->step_range_end = 1; | |
1465 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1466 | } | |
1467 | return; | |
1468 | } | |
1469 | ||
1470 | /* finish_forward -- helper function for finish_command. */ | |
1471 | ||
1472 | static void | |
1473 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1474 | { | |
1475 | struct symtab_and_line sal; | |
1476 | struct thread_info *tp = inferior_thread (); | |
1477 | struct breakpoint *breakpoint; | |
1478 | struct cleanup *old_chain; | |
1479 | struct finish_command_continuation_args *cargs; | |
1480 | ||
1481 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1482 | sal.pc = get_frame_pc (frame); | |
1483 | ||
1484 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), | |
1485 | bp_finish); | |
1486 | ||
1487 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1488 | ||
1489 | tp->proceed_to_finish = 1; /* We want stop_registers, please... */ | |
b2175913 MS |
1490 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
1491 | ||
1492 | cargs = xmalloc (sizeof (*cargs)); | |
1493 | ||
1494 | cargs->breakpoint = breakpoint; | |
1495 | cargs->function = function; | |
1496 | add_continuation (tp, finish_command_continuation, cargs, | |
1497 | finish_command_continuation_free_arg); | |
1498 | ||
1499 | discard_cleanups (old_chain); | |
1500 | if (!target_can_async_p ()) | |
1501 | do_all_continuations (); | |
1502 | } | |
1503 | ||
f941662f MK |
1504 | /* "finish": Set a temporary breakpoint at the place the selected |
1505 | frame will return to, then continue. */ | |
c906108c SS |
1506 | |
1507 | static void | |
fba45db2 | 1508 | finish_command (char *arg, int from_tty) |
c906108c | 1509 | { |
52f0bd74 AC |
1510 | struct frame_info *frame; |
1511 | struct symbol *function; | |
43ff13b4 JM |
1512 | |
1513 | int async_exec = 0; | |
1514 | ||
f941662f | 1515 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1516 | if (arg != NULL) |
1517 | async_exec = strip_bg_char (&arg); | |
1518 | ||
1519 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1520 | error out. */ |
362646f5 | 1521 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1522 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1523 | |
b2175913 MS |
1524 | /* Don't try to async in reverse. */ |
1525 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1526 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1527 | ||
43ff13b4 | 1528 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1529 | foreground, synchronously. */ |
362646f5 | 1530 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1531 | { |
f941662f | 1532 | /* Simulate synchronous execution. */ |
6426a772 | 1533 | async_disable_stdin (); |
43ff13b4 | 1534 | } |
c906108c SS |
1535 | |
1536 | if (arg) | |
8a3fe4f8 | 1537 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1538 | if (!target_has_execution) |
8a3fe4f8 | 1539 | error (_("The program is not running.")); |
c906108c | 1540 | |
206415a3 | 1541 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1542 | if (frame == 0) |
8a3fe4f8 | 1543 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1544 | |
1545 | clear_proceed_status (); | |
1546 | ||
c906108c SS |
1547 | /* Find the function we will return from. */ |
1548 | ||
206415a3 | 1549 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1550 | |
f941662f MK |
1551 | /* Print info on the selected frame, including level number but not |
1552 | source. */ | |
c906108c SS |
1553 | if (from_tty) |
1554 | { | |
b2175913 MS |
1555 | if (execution_direction == EXEC_REVERSE) |
1556 | printf_filtered (_("Run back to call of ")); | |
1557 | else | |
1558 | printf_filtered (_("Run till exit from ")); | |
1559 | ||
b04f3ab4 | 1560 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1561 | } |
1562 | ||
b2175913 MS |
1563 | if (execution_direction == EXEC_REVERSE) |
1564 | finish_backward (function); | |
1565 | else | |
1566 | finish_forward (function, frame); | |
c906108c SS |
1567 | } |
1568 | \f | |
f941662f | 1569 | |
c906108c | 1570 | static void |
fba45db2 | 1571 | program_info (char *args, int from_tty) |
c906108c | 1572 | { |
347bddb7 PA |
1573 | bpstat bs; |
1574 | int num, stat; | |
1575 | struct thread_info *tp; | |
1576 | ptid_t ptid; | |
c5aa993b | 1577 | |
c906108c SS |
1578 | if (!target_has_execution) |
1579 | { | |
a3f17187 | 1580 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1581 | return; |
1582 | } | |
1583 | ||
347bddb7 PA |
1584 | if (non_stop) |
1585 | ptid = inferior_ptid; | |
1586 | else | |
1587 | { | |
1588 | struct target_waitstatus ws; | |
1589 | get_last_target_status (&ptid, &ws); | |
1590 | } | |
1591 | ||
1592 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1593 | error (_("Invalid selected thread.")); | |
1594 | else if (is_running (ptid)) | |
1595 | error (_("Selected thread is running.")); | |
1596 | ||
e09875d4 | 1597 | tp = find_thread_ptid (ptid); |
347bddb7 PA |
1598 | bs = tp->stop_bpstat; |
1599 | stat = bpstat_num (&bs, &num); | |
1600 | ||
c906108c | 1601 | target_files_info (); |
616d7dd2 | 1602 | printf_filtered (_("Program stopped at %s.\n"), paddress (stop_pc)); |
414c69f7 | 1603 | if (tp->stop_step) |
a3f17187 | 1604 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1605 | else if (stat != 0) |
c906108c SS |
1606 | { |
1607 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1608 | isn't as strange as it seems. */ |
8671a17b | 1609 | while (stat != 0) |
c906108c | 1610 | { |
8671a17b | 1611 | if (stat < 0) |
c906108c | 1612 | { |
a3f17187 AC |
1613 | printf_filtered (_("\ |
1614 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1615 | } |
1616 | else | |
a3f17187 | 1617 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1618 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1619 | } |
1620 | } | |
2020b7ab | 1621 | else if (tp->stop_signal != TARGET_SIGNAL_0) |
c906108c | 1622 | { |
a3f17187 | 1623 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2020b7ab PA |
1624 | target_signal_to_name (tp->stop_signal), |
1625 | target_signal_to_string (tp->stop_signal)); | |
c906108c SS |
1626 | } |
1627 | ||
1628 | if (!from_tty) | |
1629 | { | |
a3f17187 AC |
1630 | printf_filtered (_("\ |
1631 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1632 | } |
1633 | } | |
1634 | \f | |
1635 | static void | |
fba45db2 | 1636 | environment_info (char *var, int from_tty) |
c906108c SS |
1637 | { |
1638 | if (var) | |
1639 | { | |
aa1ee363 | 1640 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1641 | if (val) |
1642 | { | |
1643 | puts_filtered (var); | |
1644 | puts_filtered (" = "); | |
1645 | puts_filtered (val); | |
1646 | puts_filtered ("\n"); | |
1647 | } | |
1648 | else | |
1649 | { | |
1650 | puts_filtered ("Environment variable \""); | |
1651 | puts_filtered (var); | |
1652 | puts_filtered ("\" not defined.\n"); | |
1653 | } | |
1654 | } | |
1655 | else | |
1656 | { | |
aa1ee363 | 1657 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1658 | while (*vector) |
1659 | { | |
1660 | puts_filtered (*vector++); | |
1661 | puts_filtered ("\n"); | |
1662 | } | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | static void | |
fba45db2 | 1667 | set_environment_command (char *arg, int from_tty) |
c906108c | 1668 | { |
52f0bd74 | 1669 | char *p, *val, *var; |
c906108c SS |
1670 | int nullset = 0; |
1671 | ||
1672 | if (arg == 0) | |
e2e0b3e5 | 1673 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1674 | |
1675 | /* Find seperation between variable name and value */ | |
1676 | p = (char *) strchr (arg, '='); | |
1677 | val = (char *) strchr (arg, ' '); | |
1678 | ||
1679 | if (p != 0 && val != 0) | |
1680 | { | |
1681 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1682 | equals, walk forward over the spaces til we see a nonspace |
1683 | (possibly the equals). */ | |
c906108c SS |
1684 | if (p > val) |
1685 | while (*val == ' ') | |
1686 | val++; | |
1687 | ||
1688 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1689 | take the char following the spaces. */ |
c906108c SS |
1690 | if (p > val) |
1691 | p = val - 1; | |
1692 | } | |
1693 | else if (val != 0 && p == 0) | |
1694 | p = val; | |
1695 | ||
1696 | if (p == arg) | |
e2e0b3e5 | 1697 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1698 | |
1699 | if (p == 0 || p[1] == 0) | |
1700 | { | |
1701 | nullset = 1; | |
1702 | if (p == 0) | |
1703 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1704 | } | |
1705 | else | |
1706 | { | |
1707 | /* Not setting variable value to null */ | |
1708 | val = p + 1; | |
1709 | while (*val == ' ' || *val == '\t') | |
1710 | val++; | |
1711 | } | |
1712 | ||
c5aa993b JM |
1713 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1714 | p--; | |
c906108c SS |
1715 | |
1716 | var = savestring (arg, p - arg); | |
1717 | if (nullset) | |
1718 | { | |
a3f17187 AC |
1719 | printf_filtered (_("\ |
1720 | Setting environment variable \"%s\" to null value.\n"), | |
1721 | var); | |
c906108c SS |
1722 | set_in_environ (inferior_environ, var, ""); |
1723 | } | |
1724 | else | |
1725 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1726 | xfree (var); |
c906108c SS |
1727 | } |
1728 | ||
1729 | static void | |
fba45db2 | 1730 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1731 | { |
1732 | if (var == 0) | |
1733 | { | |
1734 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1735 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1736 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1737 | { |
1738 | free_environ (inferior_environ); | |
1739 | inferior_environ = make_environ (); | |
1740 | } | |
1741 | } | |
1742 | else | |
1743 | unset_in_environ (inferior_environ, var); | |
1744 | } | |
1745 | ||
1746 | /* Handle the execution path (PATH variable) */ | |
1747 | ||
1748 | static const char path_var_name[] = "PATH"; | |
1749 | ||
c906108c | 1750 | static void |
fba45db2 | 1751 | path_info (char *args, int from_tty) |
c906108c SS |
1752 | { |
1753 | puts_filtered ("Executable and object file path: "); | |
1754 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1755 | puts_filtered ("\n"); | |
1756 | } | |
1757 | ||
1758 | /* Add zero or more directories to the front of the execution path. */ | |
1759 | ||
1760 | static void | |
fba45db2 | 1761 | path_command (char *dirname, int from_tty) |
c906108c SS |
1762 | { |
1763 | char *exec_path; | |
1764 | char *env; | |
1765 | dont_repeat (); | |
1766 | env = get_in_environ (inferior_environ, path_var_name); | |
1767 | /* Can be null if path is not set */ | |
1768 | if (!env) | |
1769 | env = ""; | |
4fcf66da | 1770 | exec_path = xstrdup (env); |
c906108c SS |
1771 | mod_path (dirname, &exec_path); |
1772 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1773 | xfree (exec_path); |
c906108c | 1774 | if (from_tty) |
c5aa993b | 1775 | path_info ((char *) NULL, from_tty); |
c906108c | 1776 | } |
c906108c | 1777 | \f |
c5aa993b | 1778 | |
4782dc19 | 1779 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1780 | registers (print_all == 1) or all non-float and non-vector |
1781 | registers (print_all == 0). | |
c906108c SS |
1782 | |
1783 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1784 | register(s) one per line is good enough. If a different format is |
1785 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1786 | regs), or there is an existing convention for showing all the | |
1787 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1788 | provide that format. */ | |
c906108c | 1789 | |
666e11c5 | 1790 | void |
0ab7a791 AC |
1791 | default_print_registers_info (struct gdbarch *gdbarch, |
1792 | struct ui_file *file, | |
1793 | struct frame_info *frame, | |
1794 | int regnum, int print_all) | |
c906108c | 1795 | { |
0ab7a791 | 1796 | int i; |
a4bd449d UW |
1797 | const int numregs = gdbarch_num_regs (gdbarch) |
1798 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1799 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1800 | |
c906108c SS |
1801 | for (i = 0; i < numregs; i++) |
1802 | { | |
4782dc19 AC |
1803 | /* Decide between printing all regs, non-float / vector regs, or |
1804 | specific reg. */ | |
c5aa993b JM |
1805 | if (regnum == -1) |
1806 | { | |
f9418c0f | 1807 | if (print_all) |
4782dc19 | 1808 | { |
f9418c0f | 1809 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1810 | continue; |
f9418c0f AC |
1811 | } |
1812 | else | |
1813 | { | |
1814 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1815 | continue; |
1816 | } | |
c5aa993b JM |
1817 | } |
1818 | else | |
1819 | { | |
1820 | if (i != regnum) | |
1821 | continue; | |
1822 | } | |
c906108c SS |
1823 | |
1824 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1825 | processor, so don't display anything. */ |
a4bd449d UW |
1826 | if (gdbarch_register_name (gdbarch, i) == NULL |
1827 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1828 | continue; |
1829 | ||
a4bd449d | 1830 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1831 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1832 | (gdbarch, i)), file); |
c906108c SS |
1833 | |
1834 | /* Get the data in raw format. */ | |
9730f241 | 1835 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1836 | { |
0ab7a791 | 1837 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1838 | continue; |
1839 | } | |
1840 | ||
0ab7a791 AC |
1841 | /* If virtual format is floating, print it that way, and in raw |
1842 | hex. */ | |
f949c649 TJB |
1843 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1844 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1845 | { |
0ab7a791 | 1846 | int j; |
79a45b7d | 1847 | struct value_print_options opts; |
c906108c | 1848 | |
79a45b7d TT |
1849 | get_user_print_options (&opts); |
1850 | opts.deref_ref = 1; | |
a4bd449d | 1851 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1852 | file, 0, &opts, current_language); |
c906108c | 1853 | |
0ab7a791 | 1854 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1855 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1856 | { |
0ab7a791 | 1857 | int idx; |
a4bd449d | 1858 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1859 | idx = j; |
1860 | else | |
a4bd449d | 1861 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1862 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1863 | } |
0ab7a791 | 1864 | fprintf_filtered (file, ")"); |
c906108c | 1865 | } |
c906108c SS |
1866 | else |
1867 | { | |
79a45b7d TT |
1868 | struct value_print_options opts; |
1869 | ||
ab4327e0 | 1870 | /* Print the register in hex. */ |
79a45b7d TT |
1871 | get_formatted_print_options (&opts, 'x'); |
1872 | opts.deref_ref = 1; | |
a4bd449d | 1873 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d TT |
1874 | file, 0, &opts, |
1875 | current_language); | |
ab4327e0 EZ |
1876 | /* If not a vector register, print it also according to its |
1877 | natural format. */ | |
a4bd449d | 1878 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1879 | { |
79a45b7d TT |
1880 | get_user_print_options (&opts); |
1881 | opts.deref_ref = 1; | |
9d84ac84 | 1882 | fprintf_filtered (file, "\t"); |
a4bd449d | 1883 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1884 | file, 0, &opts, current_language); |
ab4327e0 | 1885 | } |
c906108c SS |
1886 | } |
1887 | ||
0ab7a791 | 1888 | fprintf_filtered (file, "\n"); |
c906108c SS |
1889 | } |
1890 | } | |
c906108c | 1891 | |
c906108c | 1892 | void |
fba45db2 | 1893 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1894 | { |
206415a3 | 1895 | struct frame_info *frame; |
a4bd449d | 1896 | struct gdbarch *gdbarch; |
c906108c | 1897 | int regnum, numregs; |
52f0bd74 | 1898 | char *end; |
c906108c SS |
1899 | |
1900 | if (!target_has_registers) | |
8a3fe4f8 | 1901 | error (_("The program has no registers now.")); |
206415a3 | 1902 | frame = get_selected_frame (NULL); |
a4bd449d | 1903 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1904 | |
1905 | if (!addr_exp) | |
1906 | { | |
a4bd449d | 1907 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1908 | frame, -1, fpregs); |
c906108c SS |
1909 | return; |
1910 | } | |
1911 | ||
f9418c0f | 1912 | while (*addr_exp != '\0') |
c5aa993b | 1913 | { |
f9418c0f AC |
1914 | char *start; |
1915 | const char *end; | |
c906108c | 1916 | |
f9418c0f AC |
1917 | /* Keep skipping leading white space. */ |
1918 | if (isspace ((*addr_exp))) | |
1919 | { | |
1920 | addr_exp++; | |
1921 | continue; | |
1922 | } | |
c906108c | 1923 | |
f9418c0f AC |
1924 | /* Discard any leading ``$''. Check that there is something |
1925 | resembling a register following it. */ | |
1926 | if (addr_exp[0] == '$') | |
1927 | addr_exp++; | |
1928 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1929 | error (_("Missing register name")); |
c906108c | 1930 | |
f9418c0f AC |
1931 | /* Find the start/end of this register name/num/group. */ |
1932 | start = addr_exp; | |
1933 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1934 | addr_exp++; | |
1935 | end = addr_exp; | |
ad842144 | 1936 | |
f9418c0f AC |
1937 | /* Figure out what we've found and display it. */ |
1938 | ||
1939 | /* A register name? */ | |
1940 | { | |
029a67e4 | 1941 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
f9418c0f AC |
1942 | if (regnum >= 0) |
1943 | { | |
ad842144 MR |
1944 | /* User registers lie completely outside of the range of |
1945 | normal registers. Catch them early so that the target | |
1946 | never sees them. */ | |
1947 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1948 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1949 | { | |
79a45b7d | 1950 | struct value_print_options opts; |
ad842144 MR |
1951 | struct value *val = value_of_user_reg (regnum, frame); |
1952 | ||
1953 | printf_filtered ("%s: ", start); | |
79a45b7d | 1954 | get_formatted_print_options (&opts, 'x'); |
ad842144 MR |
1955 | print_scalar_formatted (value_contents (val), |
1956 | check_typedef (value_type (val)), | |
79a45b7d | 1957 | &opts, 0, gdb_stdout); |
ad842144 MR |
1958 | printf_filtered ("\n"); |
1959 | } | |
1960 | else | |
1961 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1962 | frame, regnum, fpregs); | |
f9418c0f AC |
1963 | continue; |
1964 | } | |
1965 | } | |
ad842144 | 1966 | |
f9418c0f AC |
1967 | /* A register group? */ |
1968 | { | |
6c7d17ba | 1969 | struct reggroup *group; |
a4bd449d | 1970 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1971 | group != NULL; |
a4bd449d | 1972 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1973 | { |
1974 | /* Don't bother with a length check. Should the user | |
1975 | enter a short register group name, go with the first | |
1976 | group that matches. */ | |
6c7d17ba | 1977 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1978 | break; |
1979 | } | |
6c7d17ba | 1980 | if (group != NULL) |
f9418c0f AC |
1981 | { |
1982 | int regnum; | |
f57d151a | 1983 | for (regnum = 0; |
a4bd449d UW |
1984 | regnum < gdbarch_num_regs (gdbarch) |
1985 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1986 | regnum++) |
f9418c0f | 1987 | { |
a4bd449d UW |
1988 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1989 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1990 | gdb_stdout, frame, |
f9418c0f AC |
1991 | regnum, fpregs); |
1992 | } | |
1993 | continue; | |
1994 | } | |
1995 | } | |
c906108c | 1996 | |
f9418c0f | 1997 | /* Nothing matched. */ |
8a3fe4f8 | 1998 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 1999 | } |
c906108c SS |
2000 | } |
2001 | ||
2002 | void | |
fba45db2 | 2003 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2004 | { |
2005 | registers_info (addr_exp, 1); | |
2006 | } | |
2007 | ||
a58dd373 | 2008 | static void |
fba45db2 | 2009 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2010 | { |
2011 | registers_info (addr_exp, 0); | |
2012 | } | |
e76f1f2e AC |
2013 | |
2014 | static void | |
d80b854b | 2015 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2016 | struct frame_info *frame, const char *args) |
2017 | { | |
d80b854b UW |
2018 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2019 | ||
e76f1f2e AC |
2020 | if (gdbarch_print_vector_info_p (gdbarch)) |
2021 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2022 | else | |
2023 | { | |
2024 | int regnum; | |
2025 | int printed_something = 0; | |
ab4327e0 | 2026 | |
f57d151a | 2027 | for (regnum = 0; |
a4bd449d UW |
2028 | regnum < gdbarch_num_regs (gdbarch) |
2029 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2030 | regnum++) |
e76f1f2e | 2031 | { |
f9418c0f | 2032 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2033 | { |
2034 | printed_something = 1; | |
e76f1f2e | 2035 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2036 | } |
2037 | } | |
2038 | if (!printed_something) | |
2039 | fprintf_filtered (file, "No vector information\n"); | |
2040 | } | |
2041 | } | |
2042 | ||
2043 | static void | |
2044 | vector_info (char *args, int from_tty) | |
2045 | { | |
206415a3 DJ |
2046 | if (!target_has_registers) |
2047 | error (_("The program has no registers now.")); | |
2048 | ||
d80b854b | 2049 | print_vector_info (gdb_stdout, 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 |
d80b854b | 2532 | print_float_info (struct ui_file *file, |
23e3a7ac | 2533 | struct frame_info *frame, const char *args) |
c906108c | 2534 | { |
d80b854b UW |
2535 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2536 | ||
23e3a7ac AC |
2537 | if (gdbarch_print_float_info_p (gdbarch)) |
2538 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2539 | else | |
2540 | { | |
23e3a7ac AC |
2541 | int regnum; |
2542 | int printed_something = 0; | |
ab4327e0 | 2543 | |
f57d151a | 2544 | for (regnum = 0; |
a4bd449d UW |
2545 | regnum < gdbarch_num_regs (gdbarch) |
2546 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2547 | regnum++) |
23e3a7ac | 2548 | { |
f9418c0f | 2549 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2550 | { |
2551 | printed_something = 1; | |
23e3a7ac | 2552 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2553 | } |
2554 | } | |
2555 | if (!printed_something) | |
2556 | fprintf_filtered (file, "\ | |
2557 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2558 | } |
2559 | } | |
2560 | ||
2561 | static void | |
2562 | float_info (char *args, int from_tty) | |
2563 | { | |
206415a3 DJ |
2564 | if (!target_has_registers) |
2565 | error (_("The program has no registers now.")); | |
2566 | ||
d80b854b | 2567 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2568 | } |
2569 | \f | |
c906108c | 2570 | static void |
fba45db2 | 2571 | unset_command (char *args, int from_tty) |
c906108c | 2572 | { |
a3f17187 AC |
2573 | printf_filtered (_("\ |
2574 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2575 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2576 | } | |
2577 | ||
2578 | void | |
fba45db2 | 2579 | _initialize_infcmd (void) |
c906108c | 2580 | { |
3cb3b8df BR |
2581 | struct cmd_list_element *c = NULL; |
2582 | ||
2583 | /* add the filename of the terminal connected to inferior I/O */ | |
2584 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2585 | &inferior_io_terminal, _("\ | |
2586 | Set terminal for future runs of program being debugged."), _("\ | |
2587 | Show terminal for future runs of program being debugged."), _("\ | |
2588 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2589 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2590 | |
b4b4ac0b AC |
2591 | add_setshow_optional_filename_cmd ("args", class_run, |
2592 | &inferior_args, _("\ | |
2593 | Set argument list to give program being debugged when it is started."), _("\ | |
2594 | Show argument list to give program being debugged when it is started."), _("\ | |
2595 | Follow this command with any number of args, to be passed to the program."), | |
2596 | notice_args_set, | |
2597 | notice_args_read, | |
2598 | &setlist, &showlist); | |
c906108c | 2599 | |
1a966eab AC |
2600 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2601 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2602 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2603 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2604 | environment to be given to the program."), &showlist); |
5ba2abeb | 2605 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2606 | |
2607 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2608 | _("Complement to certain \"set\" commands."), |
c906108c | 2609 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2610 | |
1a966eab AC |
2611 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2612 | Cancel environment variable VAR for the program.\n\ | |
2613 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2614 | &unsetlist); |
5ba2abeb | 2615 | set_cmd_completer (c, noop_completer); |
c906108c | 2616 | |
1a966eab AC |
2617 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2618 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2619 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2620 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2621 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2622 | &setlist); |
5ba2abeb | 2623 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2624 | |
1bedd215 AC |
2625 | c = add_com ("path", class_files, path_command, _("\ |
2626 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2627 | $cwd in the path means the current working directory.\n\ |
2628 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2629 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2630 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2631 | set_cmd_completer (c, filename_completer); |
c906108c | 2632 | |
1a966eab AC |
2633 | c = add_cmd ("paths", no_class, path_info, _("\ |
2634 | Current search path for finding object files.\n\ | |
c906108c SS |
2635 | $cwd in the path means the current working directory.\n\ |
2636 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2637 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2638 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2639 | &showlist); |
5ba2abeb | 2640 | set_cmd_completer (c, noop_completer); |
c906108c | 2641 | |
5fd62852 PA |
2642 | add_com ("kill", class_run, kill_command, |
2643 | _("Kill execution of program being debugged.")); | |
2644 | ||
1bedd215 AC |
2645 | add_com ("attach", class_run, attach_command, _("\ |
2646 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2647 | This command attaches to another target, of the same type as your last\n\ |
2648 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2649 | The command may take as argument a process id or a device file.\n\ | |
2650 | For a process id, you must have permission to send the process a signal,\n\ | |
2651 | and it must have the same effective uid as the debugger.\n\ | |
2652 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2653 | program running in the process, looking first in the current working\n\ | |
2654 | directory, or (if not found there) using the source file search path\n\ | |
2655 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2656 | to specify the program, and to load its symbol table.")); |
c906108c | 2657 | |
f73adfeb | 2658 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2659 | Detach a process or file previously attached.\n\ |
c906108c | 2660 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2661 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2662 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2663 | |
1bedd215 AC |
2664 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2665 | Disconnect from a target.\n\ | |
6ad8ae5c | 2666 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2667 | all targets.")); |
6ad8ae5c | 2668 | |
1bedd215 AC |
2669 | add_com ("signal", class_run, signal_command, _("\ |
2670 | Continue program giving it signal specified by the argument.\n\ | |
2671 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2672 | |
1bedd215 AC |
2673 | add_com ("stepi", class_run, stepi_command, _("\ |
2674 | Step one instruction exactly.\n\ | |
2675 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2676 | add_com_alias ("si", "stepi", class_alias, 0); |
2677 | ||
1bedd215 AC |
2678 | add_com ("nexti", class_run, nexti_command, _("\ |
2679 | Step one instruction, but proceed through subroutine calls.\n\ | |
2680 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2681 | add_com_alias ("ni", "nexti", class_alias, 0); |
2682 | ||
1bedd215 AC |
2683 | add_com ("finish", class_run, finish_command, _("\ |
2684 | Execute until selected stack frame returns.\n\ | |
2685 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2686 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2687 | |
1bedd215 AC |
2688 | add_com ("next", class_run, next_command, _("\ |
2689 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2690 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2691 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2692 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2693 | add_com_alias ("n", "next", class_run, 1); |
2694 | if (xdb_commands) | |
c5aa993b | 2695 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2696 | |
1bedd215 AC |
2697 | add_com ("step", class_run, step_command, _("\ |
2698 | Step program until it reaches a different source line.\n\ | |
2699 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2700 | add_com_alias ("s", "step", class_run, 1); |
2701 | ||
1bedd215 AC |
2702 | c = add_com ("until", class_run, until_command, _("\ |
2703 | Execute until the program reaches a source line greater than the current\n\ | |
2704 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2705 | set_cmd_completer (c, location_completer); |
c906108c | 2706 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2707 | |
1bedd215 AC |
2708 | c = add_com ("advance", class_run, advance_command, _("\ |
2709 | Continue the program up to the given location (same form as args for break command).\n\ | |
2710 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2711 | set_cmd_completer (c, location_completer); |
2712 | ||
1bedd215 AC |
2713 | c = add_com ("jump", class_run, jump_command, _("\ |
2714 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2715 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2716 | for an address to start at.")); |
5ba2abeb | 2717 | set_cmd_completer (c, location_completer); |
c906108c | 2718 | |
b83266a0 | 2719 | if (xdb_commands) |
c94fdfd0 | 2720 | { |
1bedd215 AC |
2721 | c = add_com ("go", class_run, go_command, _("\ |
2722 | Usage: go <location>\n\ | |
c906108c SS |
2723 | Continue program being debugged, stopping at specified line or \n\ |
2724 | address.\n\ | |
2725 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2726 | expression for an address to start at.\n\ | |
1bedd215 | 2727 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2728 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2729 | } |
b83266a0 | 2730 | |
c906108c | 2731 | if (xdb_commands) |
c5aa993b | 2732 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2733 | |
8cae4b3f | 2734 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2735 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2736 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2737 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2738 | the breakpoint won't break until the Nth time it is reached).\n\ |
2739 | \n\ | |
2740 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2741 | otherwise all the threads in the program are continued. To \n\ | |
2742 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2743 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2744 | add_com_alias ("c", "cont", class_run, 1); |
2745 | add_com_alias ("fg", "cont", class_run, 1); | |
2746 | ||
1bedd215 AC |
2747 | c = add_com ("run", class_run, run_command, _("\ |
2748 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2749 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2750 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2751 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2752 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2753 | use \"set args\" without arguments.")); |
5ba2abeb | 2754 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2755 | add_com_alias ("r", "run", class_run, 1); |
2756 | if (xdb_commands) | |
2757 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2758 | _("Start debugged program with no arguments.")); |
c906108c | 2759 | |
1bedd215 | 2760 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2761 | Run the debugged program until the beginning of the main procedure.\n\ |
2762 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2763 | \"run\" command.")); |
a4d5f2e0 JB |
2764 | set_cmd_completer (c, filename_completer); |
2765 | ||
700b53b1 | 2766 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2767 | _("Interrupt the execution of the debugged program.\n\ |
2768 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2769 | otherwise all the threads in the program are stopped. To \n\ | |
2770 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2771 | |
1bedd215 AC |
2772 | add_info ("registers", nofp_registers_info, _("\ |
2773 | List of integer registers and their contents, for selected stack frame.\n\ | |
2774 | Register name as argument means describe only that register.")); | |
7194c49b | 2775 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2776 | |
2777 | if (xdb_commands) | |
1bedd215 AC |
2778 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2779 | List of integer registers and their contents, for selected stack frame.\n\ | |
2780 | Register name as argument means describe only that register.")); | |
2781 | add_info ("all-registers", all_registers_info, _("\ | |
2782 | List of all registers and their contents, for selected stack frame.\n\ | |
2783 | Register name as argument means describe only that register.")); | |
c906108c SS |
2784 | |
2785 | add_info ("program", program_info, | |
1bedd215 | 2786 | _("Execution status of the program.")); |
c906108c SS |
2787 | |
2788 | add_info ("float", float_info, | |
1bedd215 | 2789 | _("Print the status of the floating point unit\n")); |
c906108c | 2790 | |
e76f1f2e | 2791 | add_info ("vector", vector_info, |
1bedd215 | 2792 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2793 | |
c906108c SS |
2794 | inferior_environ = make_environ (); |
2795 | init_environ (inferior_environ); | |
2796 | } |