Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 DJ |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
5 | 2008 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <signal.h> | |
24 | #include "gdb_string.h" | |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "frame.h" | |
28 | #include "inferior.h" | |
29 | #include "environ.h" | |
30 | #include "value.h" | |
31 | #include "gdbcmd.h" | |
1adeb98a | 32 | #include "symfile.h" |
c906108c SS |
33 | #include "gdbcore.h" |
34 | #include "target.h" | |
35 | #include "language.h" | |
36 | #include "symfile.h" | |
37 | #include "objfiles.h" | |
c94fdfd0 | 38 | #include "completer.h" |
8b93c638 | 39 | #include "ui-out.h" |
6426a772 | 40 | #include "event-top.h" |
96baa820 | 41 | #include "parser-defs.h" |
36160dc4 | 42 | #include "regcache.h" |
f9418c0f | 43 | #include "reggroups.h" |
fe898f56 | 44 | #include "block.h" |
a77053c2 | 45 | #include "solib.h" |
f9418c0f | 46 | #include <ctype.h> |
92ad9cd9 | 47 | #include "gdb_assert.h" |
281b533b | 48 | #include "observer.h" |
424163ea | 49 | #include "target-descriptions.h" |
ad842144 | 50 | #include "user-regs.h" |
32c1e744 | 51 | #include "exceptions.h" |
700b53b1 | 52 | #include "cli/cli-decode.h" |
a0ef4274 | 53 | #include "gdbthread.h" |
72cec141 | 54 | |
a58dd373 | 55 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 56 | |
a14ed312 | 57 | void all_registers_info (char *, int); |
c906108c | 58 | |
a14ed312 | 59 | void registers_info (char *, int); |
c906108c | 60 | |
a58dd373 EZ |
61 | void nexti_command (char *, int); |
62 | ||
63 | void stepi_command (char *, int); | |
c906108c | 64 | |
a14ed312 | 65 | void continue_command (char *, int); |
c906108c | 66 | |
a58dd373 EZ |
67 | void interrupt_target_command (char *args, int from_tty); |
68 | ||
69 | /* Local functions: */ | |
70 | ||
71 | static void nofp_registers_info (char *, int); | |
72 | ||
c055b101 CV |
73 | static void print_return_value (struct type *func_type, |
74 | struct type *value_type); | |
11cf8741 | 75 | |
a14ed312 | 76 | static void until_next_command (int); |
c906108c | 77 | |
a14ed312 | 78 | static void until_command (char *, int); |
c906108c | 79 | |
a14ed312 | 80 | static void path_info (char *, int); |
c906108c | 81 | |
a14ed312 | 82 | static void path_command (char *, int); |
c906108c | 83 | |
a14ed312 | 84 | static void unset_command (char *, int); |
c906108c | 85 | |
a14ed312 | 86 | static void float_info (char *, int); |
c906108c | 87 | |
a14ed312 | 88 | static void detach_command (char *, int); |
c906108c | 89 | |
6ad8ae5c DJ |
90 | static void disconnect_command (char *, int); |
91 | ||
a14ed312 | 92 | static void unset_environment_command (char *, int); |
c906108c | 93 | |
a14ed312 | 94 | static void set_environment_command (char *, int); |
c906108c | 95 | |
a14ed312 | 96 | static void environment_info (char *, int); |
c906108c | 97 | |
a14ed312 | 98 | static void program_info (char *, int); |
c906108c | 99 | |
a14ed312 | 100 | static void finish_command (char *, int); |
c906108c | 101 | |
a14ed312 | 102 | static void signal_command (char *, int); |
c906108c | 103 | |
a14ed312 | 104 | static void jump_command (char *, int); |
c906108c | 105 | |
a14ed312 | 106 | static void step_1 (int, int, char *); |
611c83ae | 107 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
c906108c | 108 | |
a14ed312 | 109 | static void next_command (char *, int); |
c906108c | 110 | |
a14ed312 | 111 | static void step_command (char *, int); |
c906108c | 112 | |
a14ed312 | 113 | static void run_command (char *, int); |
c906108c | 114 | |
a14ed312 | 115 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 116 | |
a14ed312 | 117 | static void go_command (char *line_no, int from_tty); |
392a587b | 118 | |
a14ed312 | 119 | static int strip_bg_char (char **); |
43ff13b4 | 120 | |
a14ed312 | 121 | void _initialize_infcmd (void); |
c906108c SS |
122 | |
123 | #define GO_USAGE "Usage: go <location>\n" | |
124 | ||
c906108c | 125 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 126 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
127 | |
128 | /* String containing arguments to give to the program, separated by spaces. | |
129 | Empty string (pointer to '\0') means no args. */ | |
130 | ||
131 | static char *inferior_args; | |
132 | ||
552c04a7 TT |
133 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
134 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
135 | ||
136 | static int inferior_argc; | |
137 | static char **inferior_argv; | |
138 | ||
c906108c SS |
139 | /* File name for default use for standard in/out in the inferior. */ |
140 | ||
3cb3b8df | 141 | static char *inferior_io_terminal; |
c906108c SS |
142 | |
143 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
144 | Since various parts of infrun.c test this to see whether there is a program | |
145 | being debugged it should be nonzero (currently 3 is used) for remote | |
146 | debugging. */ | |
147 | ||
39f77062 | 148 | ptid_t inferior_ptid; |
c906108c | 149 | |
c906108c SS |
150 | /* Address at which inferior stopped. */ |
151 | ||
152 | CORE_ADDR stop_pc; | |
153 | ||
c906108c SS |
154 | /* Flag indicating that a command has proceeded the inferior past the |
155 | current breakpoint. */ | |
156 | ||
157 | int breakpoint_proceeded; | |
158 | ||
c906108c SS |
159 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
160 | ||
161 | int stop_stack_dummy; | |
162 | ||
163 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
164 | process. */ | |
165 | ||
166 | int stopped_by_random_signal; | |
167 | ||
c906108c SS |
168 | /* Environment to use for running inferior, |
169 | in format described in environ.h. */ | |
170 | ||
1bf1958d | 171 | struct gdb_environ *inferior_environ; |
f5871ec0 | 172 | |
8f6a8e84 VP |
173 | /* When set, no calls to target_resumed observer will be made. */ |
174 | int suppress_resume_observer = 0; | |
175 | /* When set, normal_stop will not call the normal_stop observer. */ | |
176 | int suppress_stop_observer = 0; | |
c906108c | 177 | \f |
07091751 FN |
178 | /* Accessor routines. */ |
179 | ||
3cb3b8df BR |
180 | void |
181 | set_inferior_io_terminal (const char *terminal_name) | |
182 | { | |
183 | if (inferior_io_terminal) | |
184 | xfree (inferior_io_terminal); | |
185 | ||
186 | if (!terminal_name) | |
187 | inferior_io_terminal = NULL; | |
188 | else | |
189 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
190 | } | |
191 | ||
192 | const char * | |
193 | get_inferior_io_terminal (void) | |
194 | { | |
195 | return inferior_io_terminal; | |
196 | } | |
197 | ||
07091751 FN |
198 | char * |
199 | get_inferior_args (void) | |
200 | { | |
552c04a7 TT |
201 | if (inferior_argc != 0) |
202 | { | |
203 | char *n, *old; | |
204 | ||
205 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
206 | inferior_argc, inferior_argv); | |
207 | old = set_inferior_args (n); | |
208 | xfree (old); | |
209 | } | |
210 | ||
211 | if (inferior_args == NULL) | |
212 | inferior_args = xstrdup (""); | |
213 | ||
07091751 FN |
214 | return inferior_args; |
215 | } | |
216 | ||
217 | char * | |
218 | set_inferior_args (char *newargs) | |
219 | { | |
220 | char *saved_args = inferior_args; | |
221 | ||
222 | inferior_args = newargs; | |
552c04a7 TT |
223 | inferior_argc = 0; |
224 | inferior_argv = 0; | |
07091751 FN |
225 | |
226 | return saved_args; | |
227 | } | |
c5aa993b | 228 | |
552c04a7 TT |
229 | void |
230 | set_inferior_args_vector (int argc, char **argv) | |
231 | { | |
232 | inferior_argc = argc; | |
233 | inferior_argv = argv; | |
234 | } | |
235 | ||
236 | /* Notice when `set args' is run. */ | |
237 | static void | |
238 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
239 | { | |
240 | inferior_argc = 0; | |
241 | inferior_argv = 0; | |
242 | } | |
243 | ||
244 | /* Notice when `show args' is run. */ | |
245 | static void | |
b4b4ac0b AC |
246 | notice_args_read (struct ui_file *file, int from_tty, |
247 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 248 | { |
258c00cc TT |
249 | /* Note that we ignore the passed-in value in favor of computing it |
250 | directly. */ | |
251 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
252 | } |
253 | ||
c2a727fa TT |
254 | \f |
255 | /* Compute command-line string given argument vector. This does the | |
256 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
257 | char * |
258 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
259 | { | |
260 | char *result; | |
261 | ||
262 | if (STARTUP_WITH_SHELL) | |
263 | { | |
264 | /* This holds all the characters considered special to the | |
265 | typical Unix shells. We include `^' because the SunOS | |
266 | /bin/sh treats it as a synonym for `|'. */ | |
267 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
268 | int i; | |
269 | int length = 0; | |
270 | char *out, *cp; | |
271 | ||
272 | /* We over-compute the size. It shouldn't matter. */ | |
273 | for (i = 0; i < argc; ++i) | |
03c6228e | 274 | length += 2 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
275 | |
276 | result = (char *) xmalloc (length); | |
277 | out = result; | |
278 | ||
279 | for (i = 0; i < argc; ++i) | |
280 | { | |
281 | if (i > 0) | |
282 | *out++ = ' '; | |
283 | ||
03c6228e AS |
284 | /* Need to handle empty arguments specially. */ |
285 | if (argv[i][0] == '\0') | |
c2a727fa | 286 | { |
03c6228e AS |
287 | *out++ = '\''; |
288 | *out++ = '\''; | |
289 | } | |
290 | else | |
291 | { | |
292 | for (cp = argv[i]; *cp; ++cp) | |
293 | { | |
294 | if (strchr (special, *cp) != NULL) | |
295 | *out++ = '\\'; | |
296 | *out++ = *cp; | |
297 | } | |
c2a727fa TT |
298 | } |
299 | } | |
300 | *out = '\0'; | |
301 | } | |
302 | else | |
303 | { | |
304 | /* In this case we can't handle arguments that contain spaces, | |
305 | tabs, or newlines -- see breakup_args(). */ | |
306 | int i; | |
307 | int length = 0; | |
308 | ||
309 | for (i = 0; i < argc; ++i) | |
310 | { | |
311 | char *cp = strchr (argv[i], ' '); | |
312 | if (cp == NULL) | |
313 | cp = strchr (argv[i], '\t'); | |
314 | if (cp == NULL) | |
315 | cp = strchr (argv[i], '\n'); | |
316 | if (cp != NULL) | |
8a3fe4f8 | 317 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
318 | length += strlen (argv[i]) + 1; |
319 | } | |
320 | ||
321 | result = (char *) xmalloc (length); | |
322 | result[0] = '\0'; | |
323 | for (i = 0; i < argc; ++i) | |
324 | { | |
325 | if (i > 0) | |
326 | strcat (result, " "); | |
327 | strcat (result, argv[i]); | |
328 | } | |
329 | } | |
330 | ||
331 | return result; | |
332 | } | |
552c04a7 TT |
333 | \f |
334 | ||
43ff13b4 JM |
335 | /* This function detects whether or not a '&' character (indicating |
336 | background execution) has been added as *the last* of the arguments ARGS | |
337 | of a command. If it has, it removes it and returns 1. Otherwise it | |
338 | does nothing and returns 0. */ | |
c5aa993b | 339 | static int |
fba45db2 | 340 | strip_bg_char (char **args) |
43ff13b4 JM |
341 | { |
342 | char *p = NULL; | |
c5aa993b | 343 | |
9846de1b | 344 | p = strchr (*args, '&'); |
c5aa993b | 345 | |
9846de1b | 346 | if (p) |
43ff13b4 JM |
347 | { |
348 | if (p == (*args + strlen (*args) - 1)) | |
349 | { | |
c5aa993b | 350 | if (strlen (*args) > 1) |
43ff13b4 JM |
351 | { |
352 | do | |
353 | p--; | |
354 | while (*p == ' ' || *p == '\t'); | |
355 | *(p + 1) = '\0'; | |
356 | } | |
357 | else | |
358 | *args = 0; | |
359 | return 1; | |
360 | } | |
361 | } | |
362 | return 0; | |
363 | } | |
364 | ||
c906108c | 365 | void |
fba45db2 | 366 | tty_command (char *file, int from_tty) |
c906108c SS |
367 | { |
368 | if (file == 0) | |
e2e0b3e5 | 369 | error_no_arg (_("terminal name for running target process")); |
c906108c | 370 | |
3cb3b8df | 371 | set_inferior_io_terminal (file); |
c906108c SS |
372 | } |
373 | ||
281b533b DJ |
374 | /* Common actions to take after creating any sort of inferior, by any |
375 | means (running, attaching, connecting, et cetera). The target | |
376 | should be stopped. */ | |
377 | ||
378 | void | |
379 | post_create_inferior (struct target_ops *target, int from_tty) | |
380 | { | |
b79599ff DP |
381 | /* Be sure we own the terminal in case write operations are performed. */ |
382 | target_terminal_ours (); | |
383 | ||
424163ea DJ |
384 | /* If the target hasn't taken care of this already, do it now. |
385 | Targets which need to access registers during to_open, | |
386 | to_create_inferior, or to_attach should do it earlier; but many | |
387 | don't need to. */ | |
388 | target_find_description (); | |
389 | ||
9353355f DJ |
390 | if (exec_bfd) |
391 | { | |
392 | /* Sometimes the platform-specific hook loads initial shared | |
393 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
394 | that we can add them with the correct value for FROM_TTY. |
395 | If we made all the inferior hook methods consistent, | |
396 | this call could be removed. */ | |
9353355f DJ |
397 | #ifdef SOLIB_ADD |
398 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
399 | #else | |
400 | solib_add (NULL, from_tty, target, auto_solib_add); | |
401 | #endif | |
402 | ||
403 | /* Create the hooks to handle shared library load and unload | |
404 | events. */ | |
405 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 406 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
407 | #else |
408 | solib_create_inferior_hook (); | |
409 | #endif | |
9353355f DJ |
410 | } |
411 | ||
281b533b DJ |
412 | observer_notify_inferior_created (target, from_tty); |
413 | } | |
414 | ||
a4d5f2e0 JB |
415 | /* Kill the inferior if already running. This function is designed |
416 | to be called when we are about to start the execution of the program | |
417 | from the beginning. Ask the user to confirm that he wants to restart | |
418 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 419 | |
8edfe269 | 420 | static void |
a4d5f2e0 JB |
421 | kill_if_already_running (int from_tty) |
422 | { | |
39f77062 | 423 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 424 | { |
8edfe269 DJ |
425 | /* Bail out before killing the program if we will not be able to |
426 | restart it. */ | |
427 | target_require_runnable (); | |
428 | ||
adf40b2e JM |
429 | if (from_tty |
430 | && !query ("The program being debugged has been started already.\n\ | |
c906108c | 431 | Start it from the beginning? ")) |
8a3fe4f8 | 432 | error (_("Program not restarted.")); |
c906108c | 433 | target_kill (); |
c906108c | 434 | } |
a4d5f2e0 JB |
435 | } |
436 | ||
f67a969f JB |
437 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
438 | a temporary breakpoint at the begining of the main program before | |
439 | running the program. */ | |
440 | ||
a4d5f2e0 | 441 | static void |
f67a969f | 442 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
443 | { |
444 | char *exec_file; | |
c906108c | 445 | |
a4d5f2e0 JB |
446 | dont_repeat (); |
447 | ||
448 | kill_if_already_running (from_tty); | |
3c35e65b UW |
449 | |
450 | init_wait_for_inferior (); | |
c906108c SS |
451 | clear_breakpoint_hit_counts (); |
452 | ||
fd79ecee DJ |
453 | /* Clean up any leftovers from other runs. Some other things from |
454 | this function should probably be moved into target_pre_inferior. */ | |
455 | target_pre_inferior (from_tty); | |
456 | ||
39ad761d JB |
457 | /* The comment here used to read, "The exec file is re-read every |
458 | time we do a generic_mourn_inferior, so we just have to worry | |
459 | about the symbol file." The `generic_mourn_inferior' function | |
460 | gets called whenever the program exits. However, suppose the | |
461 | program exits, and *then* the executable file changes? We need | |
462 | to check again here. Since reopen_exec_file doesn't do anything | |
463 | if the timestamp hasn't changed, I don't see the harm. */ | |
464 | reopen_exec_file (); | |
c906108c SS |
465 | reread_symbols (); |
466 | ||
f67a969f JB |
467 | /* Insert the temporary breakpoint if a location was specified. */ |
468 | if (tbreak_at_main) | |
469 | tbreak_command (main_name (), 0); | |
470 | ||
39ad761d JB |
471 | exec_file = (char *) get_exec_file (0); |
472 | ||
9908b566 VP |
473 | if (non_stop && !target_supports_non_stop ()) |
474 | error (_("The target does not support running in non-stop mode.")); | |
475 | ||
c906108c SS |
476 | /* We keep symbols from add-symbol-file, on the grounds that the |
477 | user might want to add some symbols before running the program | |
478 | (right?). But sometimes (dynamic loading where the user manually | |
479 | introduces the new symbols with add-symbol-file), the code which | |
480 | the symbols describe does not persist between runs. Currently | |
481 | the user has to manually nuke all symbols between runs if they | |
482 | want them to go away (PR 2207). This is probably reasonable. */ | |
483 | ||
43ff13b4 | 484 | if (!args) |
6426a772 | 485 | { |
362646f5 | 486 | if (target_can_async_p ()) |
6426a772 JM |
487 | async_disable_stdin (); |
488 | } | |
43ff13b4 | 489 | else |
c906108c | 490 | { |
43ff13b4 JM |
491 | int async_exec = strip_bg_char (&args); |
492 | ||
493 | /* If we get a request for running in the bg but the target | |
494 | doesn't support it, error out. */ | |
362646f5 | 495 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 496 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
497 | |
498 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 499 | to simulate synchronous (fg) execution. */ |
362646f5 | 500 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
501 | { |
502 | /* Simulate synchronous execution */ | |
6426a772 | 503 | async_disable_stdin (); |
43ff13b4 JM |
504 | } |
505 | ||
506 | /* If there were other args, beside '&', process them. */ | |
507 | if (args) | |
508 | { | |
07091751 FN |
509 | char *old_args = set_inferior_args (xstrdup (args)); |
510 | xfree (old_args); | |
43ff13b4 | 511 | } |
c906108c SS |
512 | } |
513 | ||
514 | if (from_tty) | |
515 | { | |
8b93c638 JM |
516 | ui_out_field_string (uiout, NULL, "Starting program"); |
517 | ui_out_text (uiout, ": "); | |
518 | if (exec_file) | |
519 | ui_out_field_string (uiout, "execfile", exec_file); | |
520 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
521 | /* We call get_inferior_args() because we might need to compute |
522 | the value now. */ | |
523 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
524 | ui_out_text (uiout, "\n"); |
525 | ui_out_flush (uiout); | |
c906108c SS |
526 | } |
527 | ||
552c04a7 TT |
528 | /* We call get_inferior_args() because we might need to compute |
529 | the value now. */ | |
530 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 531 | environ_vector (inferior_environ), from_tty); |
281b533b | 532 | |
de1b3c3d PA |
533 | /* Pass zero for FROM_TTY, because at this point the "run" command |
534 | has done its thing; now we are setting up the running program. */ | |
535 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
536 | |
537 | /* Start the target running. */ | |
538 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c SS |
539 | } |
540 | ||
541 | ||
f67a969f JB |
542 | static void |
543 | run_command (char *args, int from_tty) | |
544 | { | |
545 | run_command_1 (args, from_tty, 0); | |
546 | } | |
547 | ||
c906108c | 548 | static void |
fba45db2 | 549 | run_no_args_command (char *args, int from_tty) |
c906108c | 550 | { |
07091751 FN |
551 | char *old_args = set_inferior_args (xstrdup ("")); |
552 | xfree (old_args); | |
c906108c | 553 | } |
c906108c | 554 | \f |
c5aa993b | 555 | |
a4d5f2e0 JB |
556 | /* Start the execution of the program up until the beginning of the main |
557 | program. */ | |
558 | ||
559 | static void | |
560 | start_command (char *args, int from_tty) | |
561 | { | |
562 | /* Some languages such as Ada need to search inside the program | |
563 | minimal symbols for the location where to put the temporary | |
564 | breakpoint before starting. */ | |
565 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 566 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 567 | |
f67a969f JB |
568 | /* Run the program until reaching the main procedure... */ |
569 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
570 | } |
571 | ||
8cae4b3f PA |
572 | static int |
573 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
574 | { | |
4f8d22e3 | 575 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
576 | return 0; |
577 | ||
dcf4fbde | 578 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
579 | clear_proceed_status (); |
580 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
581 | return 0; | |
582 | } | |
583 | ||
77ebaa5a VP |
584 | void |
585 | continue_1 (int all_threads) | |
586 | { | |
3d488bfc PA |
587 | ERROR_NO_INFERIOR; |
588 | ||
77ebaa5a VP |
589 | if (non_stop && all_threads) |
590 | { | |
591 | /* Don't error out if the current thread is running, because | |
592 | there may be other stopped threads. */ | |
593 | struct cleanup *old_chain; | |
594 | ||
595 | /* Backup current thread and selected frame. */ | |
596 | old_chain = make_cleanup_restore_current_thread (); | |
597 | ||
598 | iterate_over_threads (proceed_thread_callback, NULL); | |
599 | ||
600 | /* Restore selected ptid. */ | |
601 | do_cleanups (old_chain); | |
602 | } | |
603 | else | |
604 | { | |
605 | ensure_not_running (); | |
606 | clear_proceed_status (); | |
607 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
608 | } | |
609 | } | |
610 | ||
8cae4b3f | 611 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 612 | void |
8cae4b3f | 613 | continue_command (char *args, int from_tty) |
c906108c | 614 | { |
c5aa993b | 615 | int async_exec = 0; |
8cae4b3f | 616 | int all_threads = 0; |
c906108c SS |
617 | ERROR_NO_INFERIOR; |
618 | ||
43ff13b4 | 619 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
620 | if (args != NULL) |
621 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
622 | |
623 | /* If we must run in the background, but the target can't do it, | |
624 | error out. */ | |
362646f5 | 625 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 626 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
627 | |
628 | /* If we are not asked to run in the bg, then prepare to run in the | |
629 | foreground, synchronously. */ | |
362646f5 | 630 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 631 | { |
43ff13b4 | 632 | /* Simulate synchronous execution */ |
6426a772 | 633 | async_disable_stdin (); |
43ff13b4 | 634 | } |
c906108c | 635 | |
8cae4b3f PA |
636 | if (args != NULL) |
637 | { | |
638 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
639 | { | |
640 | all_threads = 1; | |
641 | args += sizeof ("-a") - 1; | |
642 | if (*args == '\0') | |
643 | args = NULL; | |
644 | } | |
645 | } | |
646 | ||
647 | if (!non_stop && all_threads) | |
648 | error (_("`-a' is meaningless in all-stop mode.")); | |
649 | ||
650 | if (args != NULL && all_threads) | |
651 | error (_("\ | |
652 | Can't resume all threads and specify proceed count simultaneously.")); | |
653 | ||
654 | /* If we have an argument left, set proceed count of breakpoint we | |
655 | stopped at. */ | |
656 | if (args != NULL) | |
c906108c | 657 | { |
347bddb7 | 658 | bpstat bs = NULL; |
8671a17b PA |
659 | int num, stat; |
660 | int stopped = 0; | |
347bddb7 PA |
661 | struct thread_info *tp; |
662 | ||
663 | if (non_stop) | |
664 | tp = find_thread_pid (inferior_ptid); | |
665 | else | |
666 | { | |
667 | ptid_t last_ptid; | |
668 | struct target_waitstatus ws; | |
669 | ||
670 | get_last_target_status (&last_ptid, &ws); | |
671 | tp = find_thread_pid (last_ptid); | |
672 | } | |
673 | if (tp != NULL) | |
674 | bs = tp->stop_bpstat; | |
8671a17b PA |
675 | |
676 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
677 | if (stat > 0) | |
678 | { | |
679 | set_ignore_count (num, | |
8cae4b3f | 680 | parse_and_eval_long (args) - 1, |
8671a17b PA |
681 | from_tty); |
682 | /* set_ignore_count prints a message ending with a period. | |
683 | So print two spaces before "Continuing.". */ | |
684 | if (from_tty) | |
685 | printf_filtered (" "); | |
686 | stopped = 1; | |
687 | } | |
688 | ||
689 | if (!stopped && from_tty) | |
c906108c SS |
690 | { |
691 | printf_filtered | |
692 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
693 | } | |
c906108c SS |
694 | } |
695 | ||
696 | if (from_tty) | |
a3f17187 | 697 | printf_filtered (_("Continuing.\n")); |
c906108c | 698 | |
77ebaa5a | 699 | continue_1 (all_threads); |
c906108c SS |
700 | } |
701 | \f | |
702 | /* Step until outside of current statement. */ | |
703 | ||
c906108c | 704 | static void |
fba45db2 | 705 | step_command (char *count_string, int from_tty) |
c906108c SS |
706 | { |
707 | step_1 (0, 0, count_string); | |
708 | } | |
709 | ||
710 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
711 | ||
c906108c | 712 | static void |
fba45db2 | 713 | next_command (char *count_string, int from_tty) |
c906108c SS |
714 | { |
715 | step_1 (1, 0, count_string); | |
716 | } | |
717 | ||
718 | /* Likewise, but step only one instruction. */ | |
719 | ||
c906108c | 720 | void |
fba45db2 | 721 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
722 | { |
723 | step_1 (0, 1, count_string); | |
724 | } | |
725 | ||
c906108c | 726 | void |
fba45db2 | 727 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
728 | { |
729 | step_1 (1, 1, count_string); | |
730 | } | |
731 | ||
74b7792f | 732 | static void |
611c83ae | 733 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 734 | { |
611c83ae PA |
735 | int thread = * (int *) arg; |
736 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
737 | } |
738 | ||
c906108c | 739 | static void |
fba45db2 | 740 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 741 | { |
52f0bd74 | 742 | int count = 1; |
c906108c | 743 | struct frame_info *frame; |
f107f563 | 744 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 745 | int async_exec = 0; |
b3dc826b | 746 | int thread = -1; |
c5aa993b | 747 | |
c906108c | 748 | ERROR_NO_INFERIOR; |
94cc34af | 749 | ensure_not_running (); |
43ff13b4 JM |
750 | |
751 | if (count_string) | |
752 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 753 | |
43ff13b4 JM |
754 | /* If we get a request for running in the bg but the target |
755 | doesn't support it, error out. */ | |
362646f5 | 756 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 757 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
758 | |
759 | /* If we don't get a request of running in the bg, then we need | |
760 | to simulate synchronous (fg) execution. */ | |
362646f5 | 761 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
762 | { |
763 | /* Simulate synchronous execution */ | |
6426a772 | 764 | async_disable_stdin (); |
43ff13b4 JM |
765 | } |
766 | ||
bb518678 | 767 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 768 | |
c5aa993b | 769 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 770 | { |
611c83ae | 771 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 772 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
773 | |
774 | set_longjmp_breakpoint (); | |
775 | ||
b3dc826b | 776 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
777 | } |
778 | ||
779 | /* In synchronous case, all is well, just use the regular for loop. */ | |
362646f5 | 780 | if (!target_can_async_p ()) |
c2d11a7d JM |
781 | { |
782 | for (; count > 0; count--) | |
783 | { | |
4e1c45ea | 784 | struct thread_info *tp = inferior_thread (); |
c2d11a7d JM |
785 | clear_proceed_status (); |
786 | ||
787 | frame = get_current_frame (); | |
4e1c45ea | 788 | tp->step_frame_id = get_frame_id (frame); |
c2d11a7d JM |
789 | |
790 | if (!single_inst) | |
791 | { | |
4e1c45ea PA |
792 | find_pc_line_pc_range (stop_pc, |
793 | &tp->step_range_start, &tp->step_range_end); | |
794 | if (tp->step_range_end == 0) | |
c2d11a7d JM |
795 | { |
796 | char *name; | |
4e1c45ea PA |
797 | if (find_pc_partial_function (stop_pc, &name, |
798 | &tp->step_range_start, | |
799 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 800 | error (_("Cannot find bounds of current function")); |
c2d11a7d JM |
801 | |
802 | target_terminal_ours (); | |
a3f17187 | 803 | printf_filtered (_("\ |
c2d11a7d | 804 | Single stepping until exit from function %s, \n\ |
a3f17187 | 805 | which has no line number information.\n"), name); |
c2d11a7d JM |
806 | } |
807 | } | |
808 | else | |
809 | { | |
810 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 811 | tp->step_range_start = tp->step_range_end = 1; |
c2d11a7d JM |
812 | if (!skip_subroutines) |
813 | /* It is stepi. | |
814 | Don't step over function calls, not even to functions lacking | |
815 | line numbers. */ | |
078130d0 | 816 | tp->step_over_calls = STEP_OVER_NONE; |
c2d11a7d JM |
817 | } |
818 | ||
819 | if (skip_subroutines) | |
078130d0 | 820 | tp->step_over_calls = STEP_OVER_ALL; |
c2d11a7d | 821 | |
af679fd0 | 822 | tp->step_multi = (count > 1); |
c2d11a7d JM |
823 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
824 | ||
414c69f7 PA |
825 | if (!target_has_execution |
826 | || !inferior_thread ()->stop_step) | |
c2d11a7d | 827 | break; |
c2d11a7d JM |
828 | } |
829 | ||
f107f563 | 830 | do_cleanups (cleanups); |
c2d11a7d JM |
831 | return; |
832 | } | |
833 | /* In case of asynchronous target things get complicated, do only | |
834 | one step for now, before returning control to the event loop. Let | |
835 | the continuation figure out how many other steps we need to do, | |
836 | and handle them one at the time, through step_once(). */ | |
837 | else | |
838 | { | |
b3dc826b | 839 | step_once (skip_subroutines, single_inst, count, thread); |
611c83ae | 840 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
841 | disable the longjmp breakpoint as appropriate. */ |
842 | discard_cleanups (cleanups); | |
c906108c | 843 | } |
c2d11a7d | 844 | } |
c906108c | 845 | |
bfec99b2 PA |
846 | struct step_1_continuation_args |
847 | { | |
848 | int count; | |
849 | int skip_subroutines; | |
850 | int single_inst; | |
851 | int thread; | |
852 | }; | |
853 | ||
c2d11a7d JM |
854 | /* Called after we are done with one step operation, to check whether |
855 | we need to step again, before we print the prompt and return control | |
856 | to the user. If count is > 1, we will need to do one more call to | |
857 | proceed(), via step_once(). Basically it is like step_once and | |
858 | step_1_continuation are co-recursive. */ | |
859 | static void | |
604ead4a | 860 | step_1_continuation (void *args) |
c2d11a7d | 861 | { |
bfec99b2 | 862 | struct step_1_continuation_args *a = args; |
f13468d9 | 863 | |
af679fd0 | 864 | if (target_has_execution) |
f13468d9 | 865 | { |
af679fd0 PA |
866 | struct thread_info *tp; |
867 | ||
868 | tp = inferior_thread (); | |
414c69f7 | 869 | if (tp->step_multi && tp->stop_step) |
af679fd0 PA |
870 | { |
871 | /* There are more steps to make, and we did stop due to | |
872 | ending a stepping range. Do another step. */ | |
873 | step_once (a->skip_subroutines, a->single_inst, a->count - 1, a->thread); | |
874 | return; | |
875 | } | |
876 | tp->step_multi = 0; | |
f107f563 | 877 | } |
af679fd0 PA |
878 | |
879 | /* We either stopped for some reason that is not stepping, or there | |
880 | are no further steps to make. Cleanup. */ | |
881 | if (!a->single_inst || a->skip_subroutines) | |
882 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
883 | } |
884 | ||
885 | /* Do just one step operation. If count >1 we will have to set up a | |
886 | continuation to be done after the target stops (after this one | |
887 | step). This is useful to implement the 'step n' kind of commands, in | |
888 | case of asynchronous targets. We had to split step_1 into two parts, | |
889 | one to be done before proceed() and one afterwards. This function is | |
890 | called in case of step n with n>1, after the first step operation has | |
891 | been completed.*/ | |
892 | static void | |
611c83ae | 893 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 894 | { |
0d06e24b | 895 | struct frame_info *frame; |
bfec99b2 | 896 | struct step_1_continuation_args *args; |
c2d11a7d JM |
897 | |
898 | if (count > 0) | |
c906108c | 899 | { |
4e1c45ea PA |
900 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
901 | the longjmp breakpoint was not required. Use the | |
902 | INFERIOR_PTID thread instead, which is the same thread when | |
903 | THREAD is set. */ | |
904 | struct thread_info *tp = inferior_thread (); | |
c906108c SS |
905 | clear_proceed_status (); |
906 | ||
907 | frame = get_current_frame (); | |
c5aa993b | 908 | if (!frame) /* Avoid coredump here. Why tho? */ |
8a3fe4f8 | 909 | error (_("No current frame")); |
4e1c45ea | 910 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 911 | |
c5aa993b | 912 | if (!single_inst) |
c906108c | 913 | { |
4e1c45ea PA |
914 | find_pc_line_pc_range (stop_pc, |
915 | &tp->step_range_start, &tp->step_range_end); | |
5fbbeb29 CF |
916 | |
917 | /* If we have no line info, switch to stepi mode. */ | |
4e1c45ea | 918 | if (tp->step_range_end == 0 && step_stop_if_no_debug) |
5fbbeb29 | 919 | { |
4e1c45ea | 920 | tp->step_range_start = tp->step_range_end = 1; |
5fbbeb29 | 921 | } |
4e1c45ea | 922 | else if (tp->step_range_end == 0) |
c906108c SS |
923 | { |
924 | char *name; | |
4e1c45ea PA |
925 | if (find_pc_partial_function (stop_pc, &name, |
926 | &tp->step_range_start, | |
927 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 928 | error (_("Cannot find bounds of current function")); |
c906108c SS |
929 | |
930 | target_terminal_ours (); | |
a3f17187 | 931 | printf_filtered (_("\ |
c906108c | 932 | Single stepping until exit from function %s, \n\ |
a3f17187 | 933 | which has no line number information.\n"), name); |
c906108c SS |
934 | } |
935 | } | |
936 | else | |
937 | { | |
938 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 939 | tp->step_range_start = tp->step_range_end = 1; |
c906108c SS |
940 | if (!skip_subroutines) |
941 | /* It is stepi. | |
942 | Don't step over function calls, not even to functions lacking | |
943 | line numbers. */ | |
078130d0 | 944 | tp->step_over_calls = STEP_OVER_NONE; |
c906108c SS |
945 | } |
946 | ||
947 | if (skip_subroutines) | |
078130d0 | 948 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c | 949 | |
95e54da7 | 950 | tp->step_multi = (count > 1); |
f107f563 | 951 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 PA |
952 | |
953 | args = xmalloc (sizeof (*args)); | |
954 | args->skip_subroutines = skip_subroutines; | |
955 | args->single_inst = single_inst; | |
956 | args->count = count; | |
957 | args->thread = thread; | |
95e54da7 | 958 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); |
c906108c | 959 | } |
c906108c | 960 | } |
c2d11a7d | 961 | |
c906108c SS |
962 | \f |
963 | /* Continue program at specified address. */ | |
964 | ||
965 | static void | |
fba45db2 | 966 | jump_command (char *arg, int from_tty) |
c906108c | 967 | { |
52f0bd74 | 968 | CORE_ADDR addr; |
c906108c SS |
969 | struct symtabs_and_lines sals; |
970 | struct symtab_and_line sal; | |
971 | struct symbol *fn; | |
972 | struct symbol *sfn; | |
43ff13b4 | 973 | int async_exec = 0; |
c5aa993b | 974 | |
c906108c | 975 | ERROR_NO_INFERIOR; |
94cc34af | 976 | ensure_not_running (); |
c906108c | 977 | |
43ff13b4 JM |
978 | /* Find out whether we must run in the background. */ |
979 | if (arg != NULL) | |
980 | async_exec = strip_bg_char (&arg); | |
981 | ||
982 | /* If we must run in the background, but the target can't do it, | |
983 | error out. */ | |
362646f5 | 984 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 985 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 986 | |
c906108c | 987 | if (!arg) |
e2e0b3e5 | 988 | error_no_arg (_("starting address")); |
c906108c SS |
989 | |
990 | sals = decode_line_spec_1 (arg, 1); | |
991 | if (sals.nelts != 1) | |
992 | { | |
8a3fe4f8 | 993 | error (_("Unreasonable jump request")); |
c906108c SS |
994 | } |
995 | ||
996 | sal = sals.sals[0]; | |
b8c9b27d | 997 | xfree (sals.sals); |
c906108c SS |
998 | |
999 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1000 | error (_("No source file has been specified.")); |
c906108c | 1001 | |
c5aa993b | 1002 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1003 | |
1004 | /* See if we are trying to jump to another function. */ | |
1005 | fn = get_frame_function (get_current_frame ()); | |
1006 | sfn = find_pc_function (sal.pc); | |
1007 | if (fn != NULL && sfn != fn) | |
1008 | { | |
1009 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, | |
de5ad195 | 1010 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1011 | { |
8a3fe4f8 | 1012 | error (_("Not confirmed.")); |
c906108c SS |
1013 | /* NOTREACHED */ |
1014 | } | |
1015 | } | |
1016 | ||
c5aa993b | 1017 | if (sfn != NULL) |
c906108c SS |
1018 | { |
1019 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1020 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1021 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c SS |
1022 | { |
1023 | if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")) | |
1024 | { | |
8a3fe4f8 | 1025 | error (_("Not confirmed.")); |
c906108c SS |
1026 | /* NOTREACHED */ |
1027 | } | |
1028 | } | |
1029 | } | |
1030 | ||
c906108c SS |
1031 | addr = sal.pc; |
1032 | ||
1033 | if (from_tty) | |
1034 | { | |
a3f17187 | 1035 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1036 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1037 | printf_filtered (".\n"); |
1038 | } | |
1039 | ||
89113898 PA |
1040 | /* If we are not asked to run in the bg, then prepare to run in the |
1041 | foreground, synchronously. */ | |
1042 | if (!async_exec && target_can_async_p ()) | |
1043 | { | |
1044 | /* Simulate synchronous execution */ | |
1045 | async_disable_stdin (); | |
1046 | } | |
1047 | ||
c906108c SS |
1048 | clear_proceed_status (); |
1049 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1050 | } | |
c906108c | 1051 | \f |
c5aa993b | 1052 | |
c906108c SS |
1053 | /* Go to line or address in current procedure */ |
1054 | static void | |
fba45db2 | 1055 | go_command (char *line_no, int from_tty) |
c906108c | 1056 | { |
c5aa993b | 1057 | if (line_no == (char *) NULL || !*line_no) |
b83266a0 | 1058 | printf_filtered (GO_USAGE); |
c906108c SS |
1059 | else |
1060 | { | |
b83266a0 SS |
1061 | tbreak_command (line_no, from_tty); |
1062 | jump_command (line_no, from_tty); | |
c906108c SS |
1063 | } |
1064 | } | |
c906108c | 1065 | \f |
c5aa993b | 1066 | |
c906108c SS |
1067 | /* Continue program giving it specified signal. */ |
1068 | ||
1069 | static void | |
fba45db2 | 1070 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1071 | { |
1072 | enum target_signal oursig; | |
32c1e744 | 1073 | int async_exec = 0; |
c906108c SS |
1074 | |
1075 | dont_repeat (); /* Too dangerous. */ | |
1076 | ERROR_NO_INFERIOR; | |
94cc34af | 1077 | ensure_not_running (); |
c906108c | 1078 | |
32c1e744 VP |
1079 | /* Find out whether we must run in the background. */ |
1080 | if (signum_exp != NULL) | |
1081 | async_exec = strip_bg_char (&signum_exp); | |
1082 | ||
1083 | /* If we must run in the background, but the target can't do it, | |
1084 | error out. */ | |
1085 | if (async_exec && !target_can_async_p ()) | |
1086 | error (_("Asynchronous execution not supported on this target.")); | |
1087 | ||
1088 | /* If we are not asked to run in the bg, then prepare to run in the | |
1089 | foreground, synchronously. */ | |
1090 | if (!async_exec && target_can_async_p ()) | |
1091 | { | |
1092 | /* Simulate synchronous execution. */ | |
1093 | async_disable_stdin (); | |
1094 | } | |
1095 | ||
c906108c | 1096 | if (!signum_exp) |
e2e0b3e5 | 1097 | error_no_arg (_("signal number")); |
c906108c SS |
1098 | |
1099 | /* It would be even slicker to make signal names be valid expressions, | |
1100 | (the type could be "enum $signal" or some such), then the user could | |
1101 | assign them to convenience variables. */ | |
1102 | oursig = target_signal_from_name (signum_exp); | |
1103 | ||
1104 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1105 | { | |
1106 | /* No, try numeric. */ | |
bb518678 | 1107 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1108 | |
1109 | if (num == 0) | |
1110 | oursig = TARGET_SIGNAL_0; | |
1111 | else | |
1112 | oursig = target_signal_from_command (num); | |
1113 | } | |
1114 | ||
1115 | if (from_tty) | |
1116 | { | |
1117 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1118 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1119 | else |
a3f17187 | 1120 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1121 | target_signal_to_name (oursig)); |
1122 | } | |
1123 | ||
1124 | clear_proceed_status (); | |
1125 | /* "signal 0" should not get stuck if we are stopped at a breakpoint. | |
1126 | FIXME: Neither should "signal foo" but when I tried passing | |
1127 | (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't | |
1128 | tried to track down yet. */ | |
2acceee2 | 1129 | proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0); |
c906108c SS |
1130 | } |
1131 | ||
c906108c SS |
1132 | /* Proceed until we reach a different source line with pc greater than |
1133 | our current one or exit the function. We skip calls in both cases. | |
1134 | ||
1135 | Note that eventually this command should probably be changed so | |
1136 | that only source lines are printed out when we hit the breakpoint | |
1137 | we set. This may involve changes to wait_for_inferior and the | |
1138 | proceed status code. */ | |
1139 | ||
c906108c | 1140 | static void |
fba45db2 | 1141 | until_next_command (int from_tty) |
c906108c SS |
1142 | { |
1143 | struct frame_info *frame; | |
1144 | CORE_ADDR pc; | |
1145 | struct symbol *func; | |
1146 | struct symtab_and_line sal; | |
4e1c45ea | 1147 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1148 | |
c906108c SS |
1149 | clear_proceed_status (); |
1150 | ||
1151 | frame = get_current_frame (); | |
1152 | ||
1153 | /* Step until either exited from this function or greater | |
1154 | than the current line (if in symbolic section) or pc (if | |
1155 | not). */ | |
1156 | ||
1157 | pc = read_pc (); | |
1158 | func = find_pc_function (pc); | |
c5aa993b | 1159 | |
c906108c SS |
1160 | if (!func) |
1161 | { | |
1162 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1163 | |
c906108c | 1164 | if (msymbol == NULL) |
8a3fe4f8 | 1165 | error (_("Execution is not within a known function.")); |
c5aa993b | 1166 | |
4e1c45ea PA |
1167 | tp->step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1168 | tp->step_range_end = pc; | |
c906108c SS |
1169 | } |
1170 | else | |
1171 | { | |
1172 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1173 | |
4e1c45ea PA |
1174 | tp->step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1175 | tp->step_range_end = sal.end; | |
c906108c | 1176 | } |
c5aa993b | 1177 | |
078130d0 | 1178 | tp->step_over_calls = STEP_OVER_ALL; |
4e1c45ea | 1179 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 1180 | |
af679fd0 | 1181 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1182 | |
2acceee2 | 1183 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1184 | } |
1185 | ||
c5aa993b | 1186 | static void |
fba45db2 | 1187 | until_command (char *arg, int from_tty) |
c906108c | 1188 | { |
43ff13b4 JM |
1189 | int async_exec = 0; |
1190 | ||
c906108c | 1191 | if (!target_has_execution) |
8a3fe4f8 | 1192 | error (_("The program is not running.")); |
43ff13b4 JM |
1193 | |
1194 | /* Find out whether we must run in the background. */ | |
1195 | if (arg != NULL) | |
1196 | async_exec = strip_bg_char (&arg); | |
1197 | ||
1198 | /* If we must run in the background, but the target can't do it, | |
1199 | error out. */ | |
362646f5 | 1200 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1201 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1202 | |
1203 | /* If we are not asked to run in the bg, then prepare to run in the | |
1204 | foreground, synchronously. */ | |
362646f5 | 1205 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1206 | { |
43ff13b4 | 1207 | /* Simulate synchronous execution */ |
6426a772 | 1208 | async_disable_stdin (); |
43ff13b4 JM |
1209 | } |
1210 | ||
c906108c | 1211 | if (arg) |
ae66c1fc | 1212 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1213 | else |
1214 | until_next_command (from_tty); | |
1215 | } | |
ae66c1fc EZ |
1216 | |
1217 | static void | |
1218 | advance_command (char *arg, int from_tty) | |
1219 | { | |
1220 | int async_exec = 0; | |
1221 | ||
1222 | if (!target_has_execution) | |
8a3fe4f8 | 1223 | error (_("The program is not running.")); |
ae66c1fc EZ |
1224 | |
1225 | if (arg == NULL) | |
e2e0b3e5 | 1226 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1227 | |
1228 | /* Find out whether we must run in the background. */ | |
1229 | if (arg != NULL) | |
1230 | async_exec = strip_bg_char (&arg); | |
1231 | ||
1232 | /* If we must run in the background, but the target can't do it, | |
1233 | error out. */ | |
362646f5 | 1234 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1235 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1236 | |
1237 | /* If we are not asked to run in the bg, then prepare to run in the | |
1238 | foreground, synchronously. */ | |
362646f5 | 1239 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1240 | { |
1241 | /* Simulate synchronous execution. */ | |
1242 | async_disable_stdin (); | |
1243 | } | |
1244 | ||
1245 | until_break_command (arg, from_tty, 1); | |
1246 | } | |
c906108c | 1247 | \f |
f941662f MK |
1248 | /* Print the result of a function at the end of a 'finish' command. */ |
1249 | ||
11cf8741 | 1250 | static void |
c055b101 | 1251 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1252 | { |
31db7b6c | 1253 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1254 | struct cleanup *old_chain; |
1255 | struct ui_stream *stb; | |
44e5158b AC |
1256 | struct value *value; |
1257 | ||
181fc57c | 1258 | CHECK_TYPEDEF (value_type); |
44e5158b | 1259 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1260 | |
92ad9cd9 AC |
1261 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1262 | call, it's possible (with no help from the architecture vector) | |
1263 | to locate and return/print a "struct return" value. This is just | |
1264 | a more complicated case of what is already being done in in the | |
1265 | inferior function call code. In fact, when inferior function | |
1266 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1267 | |
c055b101 CV |
1268 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1269 | NULL, NULL, NULL)) | |
44e5158b | 1270 | { |
750eb019 AC |
1271 | case RETURN_VALUE_REGISTER_CONVENTION: |
1272 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1273 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1274 | value = allocate_value (value_type); |
c055b101 | 1275 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1276 | value_contents_raw (value), NULL); |
750eb019 AC |
1277 | break; |
1278 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1279 | value = NULL; | |
1280 | break; | |
1281 | default: | |
e2e0b3e5 | 1282 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1283 | } |
bb472c1e | 1284 | |
31db7b6c MK |
1285 | if (value) |
1286 | { | |
1287 | /* Print it. */ | |
1d751abe PA |
1288 | stb = ui_out_stream_new (uiout); |
1289 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1290 | ui_out_text (uiout, "Value returned is "); |
1291 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1292 | record_latest_value (value)); | |
1293 | ui_out_text (uiout, " = "); | |
1294 | value_print (value, stb->stream, 0, Val_no_prettyprint); | |
1295 | ui_out_field_stream (uiout, "return-value", stb); | |
1296 | ui_out_text (uiout, "\n"); | |
1d751abe | 1297 | do_cleanups (old_chain); |
31db7b6c MK |
1298 | } |
1299 | else | |
1300 | { | |
1301 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1302 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1303 | ui_out_text (uiout, "."); | |
1304 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1305 | } |
11cf8741 JM |
1306 | } |
1307 | ||
43ff13b4 | 1308 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1309 | has stopped. In asynchronous mode, we wait for the target to stop |
1310 | in the call to poll or select in the event loop, so it is | |
1311 | impossible to do all the stuff as part of the finish_command | |
1312 | function itself. The only chance we have to complete this command | |
1313 | is in fetch_inferior_event, which is called by the event loop as | |
1314 | soon as it detects that the target has stopped. This function is | |
1315 | called via the cmd_continuation pointer. */ | |
1316 | ||
bfec99b2 | 1317 | struct finish_command_continuation_args |
43ff13b4 | 1318 | { |
43ff13b4 | 1319 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1320 | struct symbol *function; |
1321 | }; | |
c5aa993b | 1322 | |
bfec99b2 | 1323 | static void |
604ead4a | 1324 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1325 | { |
1326 | struct finish_command_continuation_args *a = arg; | |
43ff13b4 | 1327 | |
347bddb7 PA |
1328 | bpstat bs = NULL; |
1329 | ||
1330 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1331 | && target_has_execution | |
1332 | && is_stopped (inferior_ptid)) | |
1333 | bs = inferior_thread ()->stop_bpstat; | |
1334 | ||
1335 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1336 | && a->function != NULL) |
43ff13b4 | 1337 | { |
604ead4a | 1338 | struct type *value_type; |
bfec99b2 | 1339 | |
604ead4a PA |
1340 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1341 | if (!value_type) | |
1342 | internal_error (__FILE__, __LINE__, | |
1343 | _("finish_command: function has no target type")); | |
f5871ec0 | 1344 | |
604ead4a PA |
1345 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
1346 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
43ff13b4 | 1347 | } |
f941662f | 1348 | |
604ead4a PA |
1349 | /* We suppress normal call of normal_stop observer and do it here so |
1350 | that that *stopped notification includes the return value. */ | |
1351 | /* NOTE: This is broken in non-stop mode. There is no guarantee the | |
1352 | next stop will be in the same thread that we started doing a | |
1353 | finish on. This suppressing (or some other replacement means) | |
1354 | should be a thread property. */ | |
347bddb7 | 1355 | observer_notify_normal_stop (bs); |
8f6a8e84 | 1356 | suppress_stop_observer = 0; |
bfec99b2 | 1357 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1358 | } |
1359 | ||
604ead4a PA |
1360 | static void |
1361 | finish_command_continuation_free_arg (void *arg) | |
1362 | { | |
1363 | /* NOTE: See finish_command_continuation. This would go away, if | |
1364 | this suppressing is made a thread property. */ | |
1365 | suppress_stop_observer = 0; | |
1366 | xfree (arg); | |
1367 | } | |
1368 | ||
f941662f MK |
1369 | /* "finish": Set a temporary breakpoint at the place the selected |
1370 | frame will return to, then continue. */ | |
c906108c SS |
1371 | |
1372 | static void | |
fba45db2 | 1373 | finish_command (char *arg, int from_tty) |
c906108c SS |
1374 | { |
1375 | struct symtab_and_line sal; | |
52f0bd74 AC |
1376 | struct frame_info *frame; |
1377 | struct symbol *function; | |
c906108c SS |
1378 | struct breakpoint *breakpoint; |
1379 | struct cleanup *old_chain; | |
bfec99b2 | 1380 | struct finish_command_continuation_args *cargs; |
32400beb | 1381 | struct thread_info *tp; |
43ff13b4 JM |
1382 | |
1383 | int async_exec = 0; | |
1384 | ||
f941662f | 1385 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1386 | if (arg != NULL) |
1387 | async_exec = strip_bg_char (&arg); | |
1388 | ||
1389 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1390 | error out. */ |
362646f5 | 1391 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1392 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1393 | |
1394 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1395 | foreground, synchronously. */ |
362646f5 | 1396 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1397 | { |
f941662f | 1398 | /* Simulate synchronous execution. */ |
6426a772 | 1399 | async_disable_stdin (); |
43ff13b4 | 1400 | } |
c906108c SS |
1401 | |
1402 | if (arg) | |
8a3fe4f8 | 1403 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1404 | if (!target_has_execution) |
8a3fe4f8 | 1405 | error (_("The program is not running.")); |
c906108c | 1406 | |
206415a3 | 1407 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1408 | if (frame == 0) |
8a3fe4f8 | 1409 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c | 1410 | |
32400beb PA |
1411 | tp = inferior_thread (); |
1412 | ||
c906108c SS |
1413 | clear_proceed_status (); |
1414 | ||
bdd78e62 AC |
1415 | sal = find_pc_line (get_frame_pc (frame), 0); |
1416 | sal.pc = get_frame_pc (frame); | |
c906108c | 1417 | |
818dd999 | 1418 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), bp_finish); |
c906108c | 1419 | |
f107f563 | 1420 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
c906108c SS |
1421 | |
1422 | /* Find the function we will return from. */ | |
1423 | ||
206415a3 | 1424 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1425 | |
f941662f MK |
1426 | /* Print info on the selected frame, including level number but not |
1427 | source. */ | |
c906108c SS |
1428 | if (from_tty) |
1429 | { | |
a3f17187 | 1430 | printf_filtered (_("Run till exit from ")); |
b04f3ab4 | 1431 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1432 | } |
1433 | ||
32400beb | 1434 | tp->proceed_to_finish = 1; /* We want stop_registers, please... */ |
8f6a8e84 VP |
1435 | make_cleanup_restore_integer (&suppress_stop_observer); |
1436 | suppress_stop_observer = 1; | |
32c1e744 VP |
1437 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
1438 | ||
bfec99b2 PA |
1439 | cargs = xmalloc (sizeof (*cargs)); |
1440 | ||
1441 | cargs->breakpoint = breakpoint; | |
1442 | cargs->function = function; | |
95e54da7 | 1443 | add_continuation (tp, finish_command_continuation, cargs, |
604ead4a | 1444 | finish_command_continuation_free_arg); |
bfec99b2 | 1445 | |
f107f563 | 1446 | discard_cleanups (old_chain); |
362646f5 | 1447 | if (!target_can_async_p ()) |
604ead4a | 1448 | do_all_continuations (); |
c906108c SS |
1449 | } |
1450 | \f | |
f941662f | 1451 | |
c906108c | 1452 | static void |
fba45db2 | 1453 | program_info (char *args, int from_tty) |
c906108c | 1454 | { |
347bddb7 PA |
1455 | bpstat bs; |
1456 | int num, stat; | |
1457 | struct thread_info *tp; | |
1458 | ptid_t ptid; | |
c5aa993b | 1459 | |
c906108c SS |
1460 | if (!target_has_execution) |
1461 | { | |
a3f17187 | 1462 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1463 | return; |
1464 | } | |
1465 | ||
347bddb7 PA |
1466 | if (non_stop) |
1467 | ptid = inferior_ptid; | |
1468 | else | |
1469 | { | |
1470 | struct target_waitstatus ws; | |
1471 | get_last_target_status (&ptid, &ws); | |
1472 | } | |
1473 | ||
1474 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1475 | error (_("Invalid selected thread.")); | |
1476 | else if (is_running (ptid)) | |
1477 | error (_("Selected thread is running.")); | |
1478 | ||
1479 | tp = find_thread_pid (ptid); | |
1480 | bs = tp->stop_bpstat; | |
1481 | stat = bpstat_num (&bs, &num); | |
1482 | ||
c906108c | 1483 | target_files_info (); |
a3f17187 | 1484 | printf_filtered (_("Program stopped at %s.\n"), |
bb599908 | 1485 | hex_string ((unsigned long) stop_pc)); |
414c69f7 | 1486 | if (tp->stop_step) |
a3f17187 | 1487 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1488 | else if (stat != 0) |
c906108c SS |
1489 | { |
1490 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1491 | isn't as strange as it seems. */ |
8671a17b | 1492 | while (stat != 0) |
c906108c | 1493 | { |
8671a17b | 1494 | if (stat < 0) |
c906108c | 1495 | { |
a3f17187 AC |
1496 | printf_filtered (_("\ |
1497 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1498 | } |
1499 | else | |
a3f17187 | 1500 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1501 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1502 | } |
1503 | } | |
2020b7ab | 1504 | else if (tp->stop_signal != TARGET_SIGNAL_0) |
c906108c | 1505 | { |
a3f17187 | 1506 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2020b7ab PA |
1507 | target_signal_to_name (tp->stop_signal), |
1508 | target_signal_to_string (tp->stop_signal)); | |
c906108c SS |
1509 | } |
1510 | ||
1511 | if (!from_tty) | |
1512 | { | |
a3f17187 AC |
1513 | printf_filtered (_("\ |
1514 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1515 | } |
1516 | } | |
1517 | \f | |
1518 | static void | |
fba45db2 | 1519 | environment_info (char *var, int from_tty) |
c906108c SS |
1520 | { |
1521 | if (var) | |
1522 | { | |
aa1ee363 | 1523 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1524 | if (val) |
1525 | { | |
1526 | puts_filtered (var); | |
1527 | puts_filtered (" = "); | |
1528 | puts_filtered (val); | |
1529 | puts_filtered ("\n"); | |
1530 | } | |
1531 | else | |
1532 | { | |
1533 | puts_filtered ("Environment variable \""); | |
1534 | puts_filtered (var); | |
1535 | puts_filtered ("\" not defined.\n"); | |
1536 | } | |
1537 | } | |
1538 | else | |
1539 | { | |
aa1ee363 | 1540 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1541 | while (*vector) |
1542 | { | |
1543 | puts_filtered (*vector++); | |
1544 | puts_filtered ("\n"); | |
1545 | } | |
1546 | } | |
1547 | } | |
1548 | ||
1549 | static void | |
fba45db2 | 1550 | set_environment_command (char *arg, int from_tty) |
c906108c | 1551 | { |
52f0bd74 | 1552 | char *p, *val, *var; |
c906108c SS |
1553 | int nullset = 0; |
1554 | ||
1555 | if (arg == 0) | |
e2e0b3e5 | 1556 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1557 | |
1558 | /* Find seperation between variable name and value */ | |
1559 | p = (char *) strchr (arg, '='); | |
1560 | val = (char *) strchr (arg, ' '); | |
1561 | ||
1562 | if (p != 0 && val != 0) | |
1563 | { | |
1564 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1565 | equals, walk forward over the spaces til we see a nonspace |
1566 | (possibly the equals). */ | |
c906108c SS |
1567 | if (p > val) |
1568 | while (*val == ' ') | |
1569 | val++; | |
1570 | ||
1571 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1572 | take the char following the spaces. */ |
c906108c SS |
1573 | if (p > val) |
1574 | p = val - 1; | |
1575 | } | |
1576 | else if (val != 0 && p == 0) | |
1577 | p = val; | |
1578 | ||
1579 | if (p == arg) | |
e2e0b3e5 | 1580 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1581 | |
1582 | if (p == 0 || p[1] == 0) | |
1583 | { | |
1584 | nullset = 1; | |
1585 | if (p == 0) | |
1586 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1587 | } | |
1588 | else | |
1589 | { | |
1590 | /* Not setting variable value to null */ | |
1591 | val = p + 1; | |
1592 | while (*val == ' ' || *val == '\t') | |
1593 | val++; | |
1594 | } | |
1595 | ||
c5aa993b JM |
1596 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1597 | p--; | |
c906108c SS |
1598 | |
1599 | var = savestring (arg, p - arg); | |
1600 | if (nullset) | |
1601 | { | |
a3f17187 AC |
1602 | printf_filtered (_("\ |
1603 | Setting environment variable \"%s\" to null value.\n"), | |
1604 | var); | |
c906108c SS |
1605 | set_in_environ (inferior_environ, var, ""); |
1606 | } | |
1607 | else | |
1608 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1609 | xfree (var); |
c906108c SS |
1610 | } |
1611 | ||
1612 | static void | |
fba45db2 | 1613 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1614 | { |
1615 | if (var == 0) | |
1616 | { | |
1617 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1618 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1619 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1620 | { |
1621 | free_environ (inferior_environ); | |
1622 | inferior_environ = make_environ (); | |
1623 | } | |
1624 | } | |
1625 | else | |
1626 | unset_in_environ (inferior_environ, var); | |
1627 | } | |
1628 | ||
1629 | /* Handle the execution path (PATH variable) */ | |
1630 | ||
1631 | static const char path_var_name[] = "PATH"; | |
1632 | ||
c906108c | 1633 | static void |
fba45db2 | 1634 | path_info (char *args, int from_tty) |
c906108c SS |
1635 | { |
1636 | puts_filtered ("Executable and object file path: "); | |
1637 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1638 | puts_filtered ("\n"); | |
1639 | } | |
1640 | ||
1641 | /* Add zero or more directories to the front of the execution path. */ | |
1642 | ||
1643 | static void | |
fba45db2 | 1644 | path_command (char *dirname, int from_tty) |
c906108c SS |
1645 | { |
1646 | char *exec_path; | |
1647 | char *env; | |
1648 | dont_repeat (); | |
1649 | env = get_in_environ (inferior_environ, path_var_name); | |
1650 | /* Can be null if path is not set */ | |
1651 | if (!env) | |
1652 | env = ""; | |
4fcf66da | 1653 | exec_path = xstrdup (env); |
c906108c SS |
1654 | mod_path (dirname, &exec_path); |
1655 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1656 | xfree (exec_path); |
c906108c | 1657 | if (from_tty) |
c5aa993b | 1658 | path_info ((char *) NULL, from_tty); |
c906108c | 1659 | } |
c906108c | 1660 | \f |
c5aa993b | 1661 | |
4782dc19 | 1662 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1663 | registers (print_all == 1) or all non-float and non-vector |
1664 | registers (print_all == 0). | |
c906108c SS |
1665 | |
1666 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1667 | register(s) one per line is good enough. If a different format is |
1668 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1669 | regs), or there is an existing convention for showing all the | |
1670 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1671 | provide that format. */ | |
c906108c | 1672 | |
666e11c5 | 1673 | void |
0ab7a791 AC |
1674 | default_print_registers_info (struct gdbarch *gdbarch, |
1675 | struct ui_file *file, | |
1676 | struct frame_info *frame, | |
1677 | int regnum, int print_all) | |
c906108c | 1678 | { |
0ab7a791 | 1679 | int i; |
a4bd449d UW |
1680 | const int numregs = gdbarch_num_regs (gdbarch) |
1681 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1682 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1683 | |
c906108c SS |
1684 | for (i = 0; i < numregs; i++) |
1685 | { | |
4782dc19 AC |
1686 | /* Decide between printing all regs, non-float / vector regs, or |
1687 | specific reg. */ | |
c5aa993b JM |
1688 | if (regnum == -1) |
1689 | { | |
f9418c0f | 1690 | if (print_all) |
4782dc19 | 1691 | { |
f9418c0f | 1692 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1693 | continue; |
f9418c0f AC |
1694 | } |
1695 | else | |
1696 | { | |
1697 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1698 | continue; |
1699 | } | |
c5aa993b JM |
1700 | } |
1701 | else | |
1702 | { | |
1703 | if (i != regnum) | |
1704 | continue; | |
1705 | } | |
c906108c SS |
1706 | |
1707 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1708 | processor, so don't display anything. */ |
a4bd449d UW |
1709 | if (gdbarch_register_name (gdbarch, i) == NULL |
1710 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1711 | continue; |
1712 | ||
a4bd449d | 1713 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1714 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1715 | (gdbarch, i)), file); |
c906108c SS |
1716 | |
1717 | /* Get the data in raw format. */ | |
9730f241 | 1718 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1719 | { |
0ab7a791 | 1720 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1721 | continue; |
1722 | } | |
1723 | ||
0ab7a791 AC |
1724 | /* If virtual format is floating, print it that way, and in raw |
1725 | hex. */ | |
f949c649 TJB |
1726 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1727 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1728 | { |
0ab7a791 | 1729 | int j; |
c906108c | 1730 | |
a4bd449d | 1731 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1732 | file, 0, 1, 0, Val_pretty_default, current_language); |
c906108c | 1733 | |
0ab7a791 | 1734 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1735 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1736 | { |
0ab7a791 | 1737 | int idx; |
a4bd449d | 1738 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1739 | idx = j; |
1740 | else | |
a4bd449d | 1741 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1742 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1743 | } |
0ab7a791 | 1744 | fprintf_filtered (file, ")"); |
c906108c | 1745 | } |
c906108c SS |
1746 | else |
1747 | { | |
ab4327e0 | 1748 | /* Print the register in hex. */ |
a4bd449d | 1749 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1750 | file, 'x', 1, 0, Val_pretty_default, current_language); |
ab4327e0 EZ |
1751 | /* If not a vector register, print it also according to its |
1752 | natural format. */ | |
a4bd449d | 1753 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1754 | { |
9d84ac84 | 1755 | fprintf_filtered (file, "\t"); |
a4bd449d | 1756 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1757 | file, 0, 1, 0, Val_pretty_default, current_language); |
ab4327e0 | 1758 | } |
c906108c SS |
1759 | } |
1760 | ||
0ab7a791 | 1761 | fprintf_filtered (file, "\n"); |
c906108c SS |
1762 | } |
1763 | } | |
c906108c | 1764 | |
c906108c | 1765 | void |
fba45db2 | 1766 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1767 | { |
206415a3 | 1768 | struct frame_info *frame; |
a4bd449d | 1769 | struct gdbarch *gdbarch; |
c906108c | 1770 | int regnum, numregs; |
52f0bd74 | 1771 | char *end; |
c906108c SS |
1772 | |
1773 | if (!target_has_registers) | |
8a3fe4f8 | 1774 | error (_("The program has no registers now.")); |
206415a3 | 1775 | frame = get_selected_frame (NULL); |
a4bd449d | 1776 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1777 | |
1778 | if (!addr_exp) | |
1779 | { | |
a4bd449d | 1780 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1781 | frame, -1, fpregs); |
c906108c SS |
1782 | return; |
1783 | } | |
1784 | ||
f9418c0f | 1785 | while (*addr_exp != '\0') |
c5aa993b | 1786 | { |
f9418c0f AC |
1787 | char *start; |
1788 | const char *end; | |
c906108c | 1789 | |
f9418c0f AC |
1790 | /* Keep skipping leading white space. */ |
1791 | if (isspace ((*addr_exp))) | |
1792 | { | |
1793 | addr_exp++; | |
1794 | continue; | |
1795 | } | |
c906108c | 1796 | |
f9418c0f AC |
1797 | /* Discard any leading ``$''. Check that there is something |
1798 | resembling a register following it. */ | |
1799 | if (addr_exp[0] == '$') | |
1800 | addr_exp++; | |
1801 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1802 | error (_("Missing register name")); |
c906108c | 1803 | |
f9418c0f AC |
1804 | /* Find the start/end of this register name/num/group. */ |
1805 | start = addr_exp; | |
1806 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1807 | addr_exp++; | |
1808 | end = addr_exp; | |
ad842144 | 1809 | |
f9418c0f AC |
1810 | /* Figure out what we've found and display it. */ |
1811 | ||
1812 | /* A register name? */ | |
1813 | { | |
029a67e4 | 1814 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
f9418c0f AC |
1815 | if (regnum >= 0) |
1816 | { | |
ad842144 MR |
1817 | /* User registers lie completely outside of the range of |
1818 | normal registers. Catch them early so that the target | |
1819 | never sees them. */ | |
1820 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1821 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1822 | { | |
1823 | struct value *val = value_of_user_reg (regnum, frame); | |
1824 | ||
1825 | printf_filtered ("%s: ", start); | |
1826 | print_scalar_formatted (value_contents (val), | |
1827 | check_typedef (value_type (val)), | |
1828 | 'x', 0, gdb_stdout); | |
1829 | printf_filtered ("\n"); | |
1830 | } | |
1831 | else | |
1832 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1833 | frame, regnum, fpregs); | |
f9418c0f AC |
1834 | continue; |
1835 | } | |
1836 | } | |
ad842144 | 1837 | |
f9418c0f AC |
1838 | /* A register number? (how portable is this one?). */ |
1839 | { | |
1840 | char *endptr; | |
1841 | int regnum = strtol (start, &endptr, 0); | |
1842 | if (endptr == end | |
1843 | && regnum >= 0 | |
a4bd449d UW |
1844 | && regnum < gdbarch_num_regs (gdbarch) |
1845 | + gdbarch_num_pseudo_regs (gdbarch)) | |
f9418c0f | 1846 | { |
a4bd449d | 1847 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1848 | frame, regnum, fpregs); |
f9418c0f AC |
1849 | continue; |
1850 | } | |
1851 | } | |
1852 | ||
1853 | /* A register group? */ | |
1854 | { | |
6c7d17ba | 1855 | struct reggroup *group; |
a4bd449d | 1856 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1857 | group != NULL; |
a4bd449d | 1858 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1859 | { |
1860 | /* Don't bother with a length check. Should the user | |
1861 | enter a short register group name, go with the first | |
1862 | group that matches. */ | |
6c7d17ba | 1863 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1864 | break; |
1865 | } | |
6c7d17ba | 1866 | if (group != NULL) |
f9418c0f AC |
1867 | { |
1868 | int regnum; | |
f57d151a | 1869 | for (regnum = 0; |
a4bd449d UW |
1870 | regnum < gdbarch_num_regs (gdbarch) |
1871 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1872 | regnum++) |
f9418c0f | 1873 | { |
a4bd449d UW |
1874 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1875 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1876 | gdb_stdout, frame, |
f9418c0f AC |
1877 | regnum, fpregs); |
1878 | } | |
1879 | continue; | |
1880 | } | |
1881 | } | |
c906108c | 1882 | |
f9418c0f | 1883 | /* Nothing matched. */ |
8a3fe4f8 | 1884 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 1885 | } |
c906108c SS |
1886 | } |
1887 | ||
1888 | void | |
fba45db2 | 1889 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1890 | { |
1891 | registers_info (addr_exp, 1); | |
1892 | } | |
1893 | ||
a58dd373 | 1894 | static void |
fba45db2 | 1895 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1896 | { |
1897 | registers_info (addr_exp, 0); | |
1898 | } | |
e76f1f2e AC |
1899 | |
1900 | static void | |
1901 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
1902 | struct frame_info *frame, const char *args) | |
1903 | { | |
1904 | if (gdbarch_print_vector_info_p (gdbarch)) | |
1905 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
1906 | else | |
1907 | { | |
1908 | int regnum; | |
1909 | int printed_something = 0; | |
ab4327e0 | 1910 | |
f57d151a | 1911 | for (regnum = 0; |
a4bd449d UW |
1912 | regnum < gdbarch_num_regs (gdbarch) |
1913 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1914 | regnum++) |
e76f1f2e | 1915 | { |
f9418c0f | 1916 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
1917 | { |
1918 | printed_something = 1; | |
e76f1f2e | 1919 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
1920 | } |
1921 | } | |
1922 | if (!printed_something) | |
1923 | fprintf_filtered (file, "No vector information\n"); | |
1924 | } | |
1925 | } | |
1926 | ||
1927 | static void | |
1928 | vector_info (char *args, int from_tty) | |
1929 | { | |
206415a3 DJ |
1930 | if (!target_has_registers) |
1931 | error (_("The program has no registers now.")); | |
1932 | ||
1933 | print_vector_info (current_gdbarch, gdb_stdout, | |
1934 | get_selected_frame (NULL), args); | |
e76f1f2e | 1935 | } |
c906108c | 1936 | \f |
c5aa993b | 1937 | |
c906108c SS |
1938 | /* |
1939 | * TODO: | |
1940 | * Should save/restore the tty state since it might be that the | |
1941 | * program to be debugged was started on this tty and it wants | |
1942 | * the tty in some state other than what we want. If it's running | |
1943 | * on another terminal or without a terminal, then saving and | |
1944 | * restoring the tty state is a harmless no-op. | |
1945 | * This only needs to be done if we are attaching to a process. | |
1946 | */ | |
1947 | ||
1948 | /* | |
1949 | attach_command -- | |
1950 | takes a program started up outside of gdb and ``attaches'' to it. | |
1951 | This stops it cold in its tracks and allows us to start debugging it. | |
1952 | and wait for the trace-trap that results from attaching. */ | |
1953 | ||
9356cf8d PA |
1954 | static void |
1955 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
1956 | { | |
1957 | char *exec_file; | |
1958 | char *full_exec_path = NULL; | |
d6b48e9c | 1959 | struct inferior *inferior; |
9356cf8d | 1960 | |
d6b48e9c PA |
1961 | inferior = current_inferior (); |
1962 | inferior->stop_soon = NO_STOP_QUIETLY; | |
9356cf8d PA |
1963 | |
1964 | /* If no exec file is yet known, try to determine it from the | |
1965 | process itself. */ | |
1966 | exec_file = (char *) get_exec_file (0); | |
1967 | if (!exec_file) | |
1968 | { | |
1969 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
1970 | if (exec_file) | |
1971 | { | |
1972 | /* It's possible we don't have a full path, but rather just a | |
1973 | filename. Some targets, such as HP-UX, don't provide the | |
1974 | full path, sigh. | |
1975 | ||
1976 | Attempt to qualify the filename against the source path. | |
1977 | (If that fails, we'll just fall back on the original | |
1978 | filename. Not much more we can do...) | |
1979 | */ | |
1980 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
1981 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
1982 | ||
1983 | exec_file_attach (full_exec_path, from_tty); | |
1984 | symbol_file_add_main (full_exec_path, from_tty); | |
1985 | } | |
1986 | } | |
1987 | else | |
1988 | { | |
1989 | reopen_exec_file (); | |
1990 | reread_symbols (); | |
1991 | } | |
1992 | ||
1993 | /* Take any necessary post-attaching actions for this platform. */ | |
1994 | target_post_attach (PIDGET (inferior_ptid)); | |
1995 | ||
1996 | post_create_inferior (¤t_target, from_tty); | |
1997 | ||
1998 | /* Install inferior's terminal modes. */ | |
1999 | target_terminal_inferior (); | |
2000 | ||
2001 | if (async_exec) | |
2002 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
2003 | else | |
2004 | { | |
2005 | if (target_can_async_p ()) | |
2006 | async_enable_stdin (); | |
2007 | normal_stop (); | |
2008 | if (deprecated_attach_hook) | |
2009 | deprecated_attach_hook (); | |
2010 | } | |
2011 | } | |
2012 | ||
bfec99b2 | 2013 | struct attach_command_continuation_args |
9356cf8d PA |
2014 | { |
2015 | char *args; | |
2016 | int from_tty; | |
2017 | int async_exec; | |
bfec99b2 | 2018 | }; |
9356cf8d | 2019 | |
bfec99b2 | 2020 | static void |
604ead4a | 2021 | attach_command_continuation (void *args) |
bfec99b2 PA |
2022 | { |
2023 | struct attach_command_continuation_args *a = args; | |
2024 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); | |
9356cf8d PA |
2025 | } |
2026 | ||
604ead4a PA |
2027 | static void |
2028 | attach_command_continuation_free_args (void *args) | |
2029 | { | |
2030 | struct attach_command_continuation_args *a = args; | |
2031 | xfree (a->args); | |
2032 | xfree (a); | |
2033 | } | |
2034 | ||
c906108c | 2035 | void |
fba45db2 | 2036 | attach_command (char *args, int from_tty) |
c906108c | 2037 | { |
c5aa993b JM |
2038 | char *exec_file; |
2039 | char *full_exec_path = NULL; | |
9356cf8d | 2040 | int async_exec = 0; |
c906108c | 2041 | |
c5aa993b | 2042 | dont_repeat (); /* Not for the faint of heart */ |
c906108c SS |
2043 | |
2044 | if (target_has_execution) | |
2045 | { | |
2046 | if (query ("A program is being debugged already. Kill it? ")) | |
2047 | target_kill (); | |
2048 | else | |
8a3fe4f8 | 2049 | error (_("Not killed.")); |
c906108c SS |
2050 | } |
2051 | ||
fd79ecee DJ |
2052 | /* Clean up any leftovers from other runs. Some other things from |
2053 | this function should probably be moved into target_pre_inferior. */ | |
2054 | target_pre_inferior (from_tty); | |
2055 | ||
9908b566 VP |
2056 | if (non_stop && !target_supports_non_stop ()) |
2057 | error (_("Cannot attach to this target in non-stop mode")); | |
2058 | ||
9356cf8d PA |
2059 | if (args) |
2060 | { | |
2061 | async_exec = strip_bg_char (&args); | |
2062 | ||
2063 | /* If we get a request for running in the bg but the target | |
2064 | doesn't support it, error out. */ | |
2065 | if (async_exec && !target_can_async_p ()) | |
2066 | error (_("Asynchronous execution not supported on this target.")); | |
2067 | } | |
2068 | ||
2069 | /* If we don't get a request of running in the bg, then we need | |
2070 | to simulate synchronous (fg) execution. */ | |
2071 | if (!async_exec && target_can_async_p ()) | |
2072 | { | |
2073 | /* Simulate synchronous execution */ | |
2074 | async_disable_stdin (); | |
2075 | } | |
2076 | ||
c906108c SS |
2077 | target_attach (args, from_tty); |
2078 | ||
2079 | /* Set up the "saved terminal modes" of the inferior | |
2080 | based on what modes we are starting it with. */ | |
2081 | target_terminal_init (); | |
2082 | ||
c906108c SS |
2083 | /* Set up execution context to know that we should return from |
2084 | wait_for_inferior as soon as the target reports a stop. */ | |
2085 | init_wait_for_inferior (); | |
2086 | clear_proceed_status (); | |
c906108c | 2087 | |
dc177b7a PA |
2088 | /* Some system don't generate traps when attaching to inferior. |
2089 | E.g. Mach 3 or GNU hurd. */ | |
2090 | if (!target_attach_no_wait) | |
c5aa993b | 2091 | { |
d6b48e9c PA |
2092 | struct inferior *inferior = current_inferior (); |
2093 | ||
dc177b7a PA |
2094 | /* Careful here. See comments in inferior.h. Basically some |
2095 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2096 | need a way for handle_inferior_event to reset the stop_signal | |
2097 | variable after an attach, and this is what | |
2098 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
d6b48e9c | 2099 | inferior->stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2100 | |
dc177b7a PA |
2101 | if (target_can_async_p ()) |
2102 | { | |
2103 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2104 | struct attach_command_continuation_args *a; |
2105 | ||
2106 | a = xmalloc (sizeof (*a)); | |
2107 | a->args = xstrdup (args); | |
2108 | a->from_tty = from_tty; | |
2109 | a->async_exec = async_exec; | |
95e54da7 PA |
2110 | add_continuation (inferior_thread (), |
2111 | attach_command_continuation, a, | |
604ead4a | 2112 | attach_command_continuation_free_args); |
dc177b7a PA |
2113 | return; |
2114 | } | |
c906108c | 2115 | |
dc177b7a PA |
2116 | wait_for_inferior (0); |
2117 | } | |
6426a772 | 2118 | |
9356cf8d | 2119 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2120 | } |
2121 | ||
2122 | /* | |
2123 | * detach_command -- | |
2124 | * takes a program previously attached to and detaches it. | |
2125 | * The program resumes execution and will no longer stop | |
2126 | * on signals, etc. We better not have left any breakpoints | |
2127 | * in the program or it'll die when it hits one. For this | |
2128 | * to work, it may be necessary for the process to have been | |
2129 | * previously attached. It *might* work if the program was | |
2130 | * started via the normal ptrace (PTRACE_TRACEME). | |
2131 | */ | |
2132 | ||
2133 | static void | |
fba45db2 | 2134 | detach_command (char *args, int from_tty) |
c906108c | 2135 | { |
1f5d0fc9 | 2136 | dont_repeat (); /* Not for the faint of heart. */ |
c906108c | 2137 | target_detach (args, from_tty); |
e85a822c | 2138 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2139 | init_thread_list (); |
9a4105ab AC |
2140 | if (deprecated_detach_hook) |
2141 | deprecated_detach_hook (); | |
c906108c SS |
2142 | } |
2143 | ||
6ad8ae5c DJ |
2144 | /* Disconnect from the current target without resuming it (leaving it |
2145 | waiting for a debugger). | |
2146 | ||
2147 | We'd better not have left any breakpoints in the program or the | |
2148 | next debugger will get confused. Currently only supported for some | |
2149 | remote targets, since the normal attach mechanisms don't work on | |
2150 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2151 | ||
2152 | static void | |
2153 | disconnect_command (char *args, int from_tty) | |
2154 | { | |
2155 | dont_repeat (); /* Not for the faint of heart */ | |
2156 | target_disconnect (args, from_tty); | |
e85a822c | 2157 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2158 | init_thread_list (); |
9a4105ab AC |
2159 | if (deprecated_detach_hook) |
2160 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2161 | } |
2162 | ||
77ebaa5a VP |
2163 | void |
2164 | interrupt_target_1 (int all_threads) | |
2165 | { | |
2166 | ptid_t ptid; | |
2167 | if (all_threads) | |
2168 | ptid = minus_one_ptid; | |
2169 | else | |
2170 | ptid = inferior_ptid; | |
2171 | target_stop (ptid); | |
2172 | } | |
2173 | ||
43ff13b4 | 2174 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2175 | the backgound. In all-stop, stop the whole process. In non-stop |
2176 | mode, stop the current thread only by default, or stop all threads | |
2177 | if the `-a' switch is used. */ | |
2178 | ||
2179 | /* interrupt [-a] */ | |
8b93c638 | 2180 | void |
fba45db2 | 2181 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2182 | { |
362646f5 | 2183 | if (target_can_async_p ()) |
43ff13b4 | 2184 | { |
8cae4b3f PA |
2185 | int all_threads = 0; |
2186 | ||
c5aa993b | 2187 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2188 | |
8cae4b3f PA |
2189 | if (args != NULL |
2190 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2191 | all_threads = 1; | |
2192 | ||
2193 | if (!non_stop && all_threads) | |
2194 | error (_("-a is meaningless in all-stop mode.")); | |
2195 | ||
77ebaa5a | 2196 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2197 | } |
2198 | } | |
2199 | ||
c906108c | 2200 | static void |
23e3a7ac AC |
2201 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2202 | struct frame_info *frame, const char *args) | |
c906108c | 2203 | { |
23e3a7ac AC |
2204 | if (gdbarch_print_float_info_p (gdbarch)) |
2205 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2206 | else | |
2207 | { | |
23e3a7ac AC |
2208 | int regnum; |
2209 | int printed_something = 0; | |
ab4327e0 | 2210 | |
f57d151a | 2211 | for (regnum = 0; |
a4bd449d UW |
2212 | regnum < gdbarch_num_regs (gdbarch) |
2213 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2214 | regnum++) |
23e3a7ac | 2215 | { |
f9418c0f | 2216 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2217 | { |
2218 | printed_something = 1; | |
23e3a7ac | 2219 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2220 | } |
2221 | } | |
2222 | if (!printed_something) | |
2223 | fprintf_filtered (file, "\ | |
2224 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2225 | } |
2226 | } | |
2227 | ||
2228 | static void | |
2229 | float_info (char *args, int from_tty) | |
2230 | { | |
206415a3 DJ |
2231 | if (!target_has_registers) |
2232 | error (_("The program has no registers now.")); | |
2233 | ||
1f5d0fc9 | 2234 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2235 | get_selected_frame (NULL), args); |
c906108c SS |
2236 | } |
2237 | \f | |
c906108c | 2238 | static void |
fba45db2 | 2239 | unset_command (char *args, int from_tty) |
c906108c | 2240 | { |
a3f17187 AC |
2241 | printf_filtered (_("\ |
2242 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2243 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2244 | } | |
2245 | ||
2246 | void | |
fba45db2 | 2247 | _initialize_infcmd (void) |
c906108c | 2248 | { |
3cb3b8df BR |
2249 | struct cmd_list_element *c = NULL; |
2250 | ||
2251 | /* add the filename of the terminal connected to inferior I/O */ | |
2252 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2253 | &inferior_io_terminal, _("\ | |
2254 | Set terminal for future runs of program being debugged."), _("\ | |
2255 | Show terminal for future runs of program being debugged."), _("\ | |
2256 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2257 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2258 | |
b4b4ac0b AC |
2259 | add_setshow_optional_filename_cmd ("args", class_run, |
2260 | &inferior_args, _("\ | |
2261 | Set argument list to give program being debugged when it is started."), _("\ | |
2262 | Show argument list to give program being debugged when it is started."), _("\ | |
2263 | Follow this command with any number of args, to be passed to the program."), | |
2264 | notice_args_set, | |
2265 | notice_args_read, | |
2266 | &setlist, &showlist); | |
c906108c | 2267 | |
1a966eab AC |
2268 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2269 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2270 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2271 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2272 | environment to be given to the program."), &showlist); |
5ba2abeb | 2273 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2274 | |
2275 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2276 | _("Complement to certain \"set\" commands."), |
c906108c | 2277 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2278 | |
1a966eab AC |
2279 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2280 | Cancel environment variable VAR for the program.\n\ | |
2281 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2282 | &unsetlist); |
5ba2abeb | 2283 | set_cmd_completer (c, noop_completer); |
c906108c | 2284 | |
1a966eab AC |
2285 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2286 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2287 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2288 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2289 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2290 | &setlist); |
5ba2abeb | 2291 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2292 | |
1bedd215 AC |
2293 | c = add_com ("path", class_files, path_command, _("\ |
2294 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2295 | $cwd in the path means the current working directory.\n\ |
2296 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2297 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2298 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2299 | set_cmd_completer (c, filename_completer); |
c906108c | 2300 | |
1a966eab AC |
2301 | c = add_cmd ("paths", no_class, path_info, _("\ |
2302 | Current search path for finding object files.\n\ | |
c906108c SS |
2303 | $cwd in the path means the current working directory.\n\ |
2304 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2305 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2306 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2307 | &showlist); |
5ba2abeb | 2308 | set_cmd_completer (c, noop_completer); |
c906108c | 2309 | |
1bedd215 AC |
2310 | add_com ("attach", class_run, attach_command, _("\ |
2311 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2312 | This command attaches to another target, of the same type as your last\n\ |
2313 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2314 | The command may take as argument a process id or a device file.\n\ | |
2315 | For a process id, you must have permission to send the process a signal,\n\ | |
2316 | and it must have the same effective uid as the debugger.\n\ | |
2317 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2318 | program running in the process, looking first in the current working\n\ | |
2319 | directory, or (if not found there) using the source file search path\n\ | |
2320 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2321 | to specify the program, and to load its symbol table.")); |
c906108c | 2322 | |
f73adfeb | 2323 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2324 | Detach a process or file previously attached.\n\ |
c906108c | 2325 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2326 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2327 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2328 | |
1bedd215 AC |
2329 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2330 | Disconnect from a target.\n\ | |
6ad8ae5c | 2331 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2332 | all targets.")); |
6ad8ae5c | 2333 | |
1bedd215 AC |
2334 | add_com ("signal", class_run, signal_command, _("\ |
2335 | Continue program giving it signal specified by the argument.\n\ | |
2336 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2337 | |
1bedd215 AC |
2338 | add_com ("stepi", class_run, stepi_command, _("\ |
2339 | Step one instruction exactly.\n\ | |
2340 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2341 | add_com_alias ("si", "stepi", class_alias, 0); |
2342 | ||
1bedd215 AC |
2343 | add_com ("nexti", class_run, nexti_command, _("\ |
2344 | Step one instruction, but proceed through subroutine calls.\n\ | |
2345 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2346 | add_com_alias ("ni", "nexti", class_alias, 0); |
2347 | ||
1bedd215 AC |
2348 | add_com ("finish", class_run, finish_command, _("\ |
2349 | Execute until selected stack frame returns.\n\ | |
2350 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2351 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2352 | |
1bedd215 AC |
2353 | add_com ("next", class_run, next_command, _("\ |
2354 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2355 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2356 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2357 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2358 | add_com_alias ("n", "next", class_run, 1); |
2359 | if (xdb_commands) | |
c5aa993b | 2360 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2361 | |
1bedd215 AC |
2362 | add_com ("step", class_run, step_command, _("\ |
2363 | Step program until it reaches a different source line.\n\ | |
2364 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2365 | add_com_alias ("s", "step", class_run, 1); |
2366 | ||
1bedd215 AC |
2367 | c = add_com ("until", class_run, until_command, _("\ |
2368 | Execute until the program reaches a source line greater than the current\n\ | |
2369 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2370 | set_cmd_completer (c, location_completer); |
c906108c | 2371 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2372 | |
1bedd215 AC |
2373 | c = add_com ("advance", class_run, advance_command, _("\ |
2374 | Continue the program up to the given location (same form as args for break command).\n\ | |
2375 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2376 | set_cmd_completer (c, location_completer); |
2377 | ||
1bedd215 AC |
2378 | c = add_com ("jump", class_run, jump_command, _("\ |
2379 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2380 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2381 | for an address to start at.")); |
5ba2abeb | 2382 | set_cmd_completer (c, location_completer); |
c906108c | 2383 | |
b83266a0 | 2384 | if (xdb_commands) |
c94fdfd0 | 2385 | { |
1bedd215 AC |
2386 | c = add_com ("go", class_run, go_command, _("\ |
2387 | Usage: go <location>\n\ | |
c906108c SS |
2388 | Continue program being debugged, stopping at specified line or \n\ |
2389 | address.\n\ | |
2390 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2391 | expression for an address to start at.\n\ | |
1bedd215 | 2392 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2393 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2394 | } |
b83266a0 | 2395 | |
c906108c | 2396 | if (xdb_commands) |
c5aa993b | 2397 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2398 | |
8cae4b3f | 2399 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2400 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2401 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2402 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2403 | the breakpoint won't break until the Nth time it is reached).\n\ |
2404 | \n\ | |
2405 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2406 | otherwise all the threads in the program are continued. To \n\ | |
2407 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2408 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2409 | add_com_alias ("c", "cont", class_run, 1); |
2410 | add_com_alias ("fg", "cont", class_run, 1); | |
2411 | ||
1bedd215 AC |
2412 | c = add_com ("run", class_run, run_command, _("\ |
2413 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2414 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2415 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2416 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2417 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2418 | use \"set args\" without arguments.")); |
5ba2abeb | 2419 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2420 | add_com_alias ("r", "run", class_run, 1); |
2421 | if (xdb_commands) | |
2422 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2423 | _("Start debugged program with no arguments.")); |
c906108c | 2424 | |
1bedd215 | 2425 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2426 | Run the debugged program until the beginning of the main procedure.\n\ |
2427 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2428 | \"run\" command.")); |
a4d5f2e0 JB |
2429 | set_cmd_completer (c, filename_completer); |
2430 | ||
700b53b1 | 2431 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2432 | _("Interrupt the execution of the debugged program.\n\ |
2433 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2434 | otherwise all the threads in the program are stopped. To \n\ | |
2435 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2436 | |
1bedd215 AC |
2437 | add_info ("registers", nofp_registers_info, _("\ |
2438 | List of integer registers and their contents, for selected stack frame.\n\ | |
2439 | Register name as argument means describe only that register.")); | |
7194c49b | 2440 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2441 | |
2442 | if (xdb_commands) | |
1bedd215 AC |
2443 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2444 | List of integer registers and their contents, for selected stack frame.\n\ | |
2445 | Register name as argument means describe only that register.")); | |
2446 | add_info ("all-registers", all_registers_info, _("\ | |
2447 | List of all registers and their contents, for selected stack frame.\n\ | |
2448 | Register name as argument means describe only that register.")); | |
c906108c SS |
2449 | |
2450 | add_info ("program", program_info, | |
1bedd215 | 2451 | _("Execution status of the program.")); |
c906108c SS |
2452 | |
2453 | add_info ("float", float_info, | |
1bedd215 | 2454 | _("Print the status of the floating point unit\n")); |
c906108c | 2455 | |
e76f1f2e | 2456 | add_info ("vector", vector_info, |
1bedd215 | 2457 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2458 | |
c906108c SS |
2459 | inferior_environ = make_environ (); |
2460 | init_environ (inferior_environ); | |
2461 | } |