Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
ecd75fc8 | 3 | Copyright (C) 1986-2014 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
5af949e3 | 21 | #include "arch-utils.h" |
c906108c | 22 | #include <signal.h> |
c906108c SS |
23 | #include "symtab.h" |
24 | #include "gdbtypes.h" | |
25 | #include "frame.h" | |
26 | #include "inferior.h" | |
45741a9c | 27 | #include "infrun.h" |
c906108c SS |
28 | #include "environ.h" |
29 | #include "value.h" | |
30 | #include "gdbcmd.h" | |
1adeb98a | 31 | #include "symfile.h" |
c906108c SS |
32 | #include "gdbcore.h" |
33 | #include "target.h" | |
34 | #include "language.h" | |
c906108c | 35 | #include "objfiles.h" |
c94fdfd0 | 36 | #include "completer.h" |
8b93c638 | 37 | #include "ui-out.h" |
6426a772 | 38 | #include "event-top.h" |
96baa820 | 39 | #include "parser-defs.h" |
36160dc4 | 40 | #include "regcache.h" |
f9418c0f | 41 | #include "reggroups.h" |
fe898f56 | 42 | #include "block.h" |
a77053c2 | 43 | #include "solib.h" |
f9418c0f | 44 | #include <ctype.h> |
281b533b | 45 | #include "observer.h" |
424163ea | 46 | #include "target-descriptions.h" |
ad842144 | 47 | #include "user-regs.h" |
700b53b1 | 48 | #include "cli/cli-decode.h" |
a0ef4274 | 49 | #include "gdbthread.h" |
79a45b7d | 50 | #include "valprint.h" |
edb3359d | 51 | #include "inline-frame.h" |
573cda03 | 52 | #include "tracepoint.h" |
09cee04b | 53 | #include "inf-loop.h" |
be34f849 | 54 | #include "continuations.h" |
f8eba3c6 | 55 | #include "linespec.h" |
529480d0 | 56 | #include "cli/cli-utils.h" |
d5551862 | 57 | |
a58dd373 EZ |
58 | /* Local functions: */ |
59 | ||
60 | static void nofp_registers_info (char *, int); | |
61 | ||
6a3a010b | 62 | static void print_return_value (struct value *function, |
c055b101 | 63 | struct type *value_type); |
11cf8741 | 64 | |
a14ed312 | 65 | static void until_next_command (int); |
c906108c | 66 | |
a14ed312 | 67 | static void until_command (char *, int); |
c906108c | 68 | |
a14ed312 | 69 | static void path_info (char *, int); |
c906108c | 70 | |
a14ed312 | 71 | static void path_command (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static void unset_command (char *, int); |
c906108c | 74 | |
a14ed312 | 75 | static void float_info (char *, int); |
c906108c | 76 | |
6ad8ae5c DJ |
77 | static void disconnect_command (char *, int); |
78 | ||
a14ed312 | 79 | static void unset_environment_command (char *, int); |
c906108c | 80 | |
a14ed312 | 81 | static void set_environment_command (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void environment_info (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void program_info (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void finish_command (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void signal_command (char *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void jump_command (char *, int); |
c906108c | 92 | |
a14ed312 | 93 | static void step_1 (int, int, char *); |
3e43a32a MS |
94 | static void step_once (int skip_subroutines, int single_inst, |
95 | int count, int thread); | |
c906108c | 96 | |
a14ed312 | 97 | static void next_command (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void step_command (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void run_command (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 104 | |
a14ed312 | 105 | static void go_command (char *line_no, int from_tty); |
392a587b | 106 | |
a14ed312 | 107 | static int strip_bg_char (char **); |
43ff13b4 | 108 | |
a14ed312 | 109 | void _initialize_infcmd (void); |
c906108c | 110 | |
c906108c | 111 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 112 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 113 | |
3e43a32a MS |
114 | /* Scratch area where string containing arguments to give to the |
115 | program will be stored by 'set args'. As soon as anything is | |
116 | stored, notice_args_set will move it into per-inferior storage. | |
1777feb0 | 117 | Arguments are separated by spaces. Empty string (pointer to '\0') |
3e43a32a | 118 | means no args. */ |
c906108c | 119 | |
3f81c18a | 120 | static char *inferior_args_scratch; |
c906108c | 121 | |
3f81c18a VP |
122 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
123 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 124 | |
3f81c18a | 125 | static char *inferior_io_terminal_scratch; |
c906108c SS |
126 | |
127 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
128 | Since various parts of infrun.c test this to see whether there is a program | |
129 | being debugged it should be nonzero (currently 3 is used) for remote | |
130 | debugging. */ | |
131 | ||
39f77062 | 132 | ptid_t inferior_ptid; |
c906108c | 133 | |
c906108c SS |
134 | /* Address at which inferior stopped. */ |
135 | ||
136 | CORE_ADDR stop_pc; | |
137 | ||
c906108c SS |
138 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
139 | ||
aa7d318d | 140 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
141 | |
142 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
143 | process. */ | |
144 | ||
145 | int stopped_by_random_signal; | |
146 | ||
98882a26 PA |
147 | /* See inferior.h. */ |
148 | ||
149 | int startup_with_shell = 1; | |
150 | ||
c906108c | 151 | \f |
1777feb0 | 152 | /* Accessor routines. */ |
07091751 | 153 | |
3f81c18a VP |
154 | /* Set the io terminal for the current inferior. Ownership of |
155 | TERMINAL_NAME is not transferred. */ | |
156 | ||
3cb3b8df BR |
157 | void |
158 | set_inferior_io_terminal (const char *terminal_name) | |
159 | { | |
3f81c18a VP |
160 | xfree (current_inferior ()->terminal); |
161 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
162 | } |
163 | ||
164 | const char * | |
165 | get_inferior_io_terminal (void) | |
166 | { | |
3f81c18a VP |
167 | return current_inferior ()->terminal; |
168 | } | |
169 | ||
170 | static void | |
171 | set_inferior_tty_command (char *args, int from_tty, | |
172 | struct cmd_list_element *c) | |
173 | { | |
174 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
175 | Now route it to current inferior. */ | |
176 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
177 | } | |
178 | ||
179 | static void | |
180 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
181 | struct cmd_list_element *c, const char *value) | |
182 | { | |
183 | /* Note that we ignore the passed-in value in favor of computing it | |
184 | directly. */ | |
275f2e57 | 185 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 186 | |
275f2e57 DJ |
187 | if (inferior_io_terminal == NULL) |
188 | inferior_io_terminal = ""; | |
3f81c18a | 189 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
190 | _("Terminal for future runs of program being debugged " |
191 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
192 | } |
193 | ||
07091751 FN |
194 | char * |
195 | get_inferior_args (void) | |
196 | { | |
3f81c18a | 197 | if (current_inferior ()->argc != 0) |
552c04a7 | 198 | { |
3f81c18a | 199 | char *n; |
552c04a7 | 200 | |
3f81c18a VP |
201 | n = construct_inferior_arguments (current_inferior ()->argc, |
202 | current_inferior ()->argv); | |
203 | set_inferior_args (n); | |
204 | xfree (n); | |
552c04a7 TT |
205 | } |
206 | ||
3f81c18a VP |
207 | if (current_inferior ()->args == NULL) |
208 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 209 | |
3f81c18a | 210 | return current_inferior ()->args; |
07091751 FN |
211 | } |
212 | ||
3f81c18a VP |
213 | /* Set the arguments for the current inferior. Ownership of |
214 | NEWARGS is not transferred. */ | |
215 | ||
216 | void | |
07091751 FN |
217 | set_inferior_args (char *newargs) |
218 | { | |
3f81c18a VP |
219 | xfree (current_inferior ()->args); |
220 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
221 | current_inferior ()->argc = 0; | |
222 | current_inferior ()->argv = 0; | |
07091751 | 223 | } |
c5aa993b | 224 | |
552c04a7 TT |
225 | void |
226 | set_inferior_args_vector (int argc, char **argv) | |
227 | { | |
3f81c18a VP |
228 | current_inferior ()->argc = argc; |
229 | current_inferior ()->argv = argv; | |
552c04a7 TT |
230 | } |
231 | ||
232 | /* Notice when `set args' is run. */ | |
6339bfc4 | 233 | |
552c04a7 | 234 | static void |
3f81c18a | 235 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 236 | { |
3f81c18a VP |
237 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
238 | Now route it to current inferior. */ | |
239 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
240 | } |
241 | ||
242 | /* Notice when `show args' is run. */ | |
6339bfc4 | 243 | |
552c04a7 | 244 | static void |
3f81c18a VP |
245 | show_args_command (struct ui_file *file, int from_tty, |
246 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 247 | { |
258c00cc TT |
248 | /* Note that we ignore the passed-in value in favor of computing it |
249 | directly. */ | |
250 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
251 | } |
252 | ||
c2a727fa TT |
253 | \f |
254 | /* Compute command-line string given argument vector. This does the | |
255 | same shell processing as fork_inferior. */ | |
6339bfc4 | 256 | |
c2a727fa | 257 | char * |
bd57a748 | 258 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
259 | { |
260 | char *result; | |
261 | ||
98882a26 | 262 | if (startup_with_shell) |
c2a727fa | 263 | { |
5d60742e EZ |
264 | #ifdef __MINGW32__ |
265 | /* This holds all the characters considered special to the | |
266 | Windows shells. */ | |
267 | char *special = "\"!&*|[]{}<>?`~^=;, \t\n"; | |
268 | const char quote = '"'; | |
269 | #else | |
c2a727fa TT |
270 | /* This holds all the characters considered special to the |
271 | typical Unix shells. We include `^' because the SunOS | |
272 | /bin/sh treats it as a synonym for `|'. */ | |
5d60742e EZ |
273 | char *special = "\"!#$&*()\\|[]{}<>?'`~^; \t\n"; |
274 | const char quote = '\''; | |
275 | #endif | |
c2a727fa TT |
276 | int i; |
277 | int length = 0; | |
278 | char *out, *cp; | |
279 | ||
280 | /* We over-compute the size. It shouldn't matter. */ | |
281 | for (i = 0; i < argc; ++i) | |
c2226152 | 282 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
283 | |
284 | result = (char *) xmalloc (length); | |
285 | out = result; | |
286 | ||
287 | for (i = 0; i < argc; ++i) | |
288 | { | |
289 | if (i > 0) | |
290 | *out++ = ' '; | |
291 | ||
03c6228e AS |
292 | /* Need to handle empty arguments specially. */ |
293 | if (argv[i][0] == '\0') | |
c2a727fa | 294 | { |
5d60742e EZ |
295 | *out++ = quote; |
296 | *out++ = quote; | |
03c6228e AS |
297 | } |
298 | else | |
299 | { | |
5d60742e EZ |
300 | #ifdef __MINGW32__ |
301 | int quoted = 0; | |
302 | ||
303 | if (strpbrk (argv[i], special)) | |
304 | { | |
305 | quoted = 1; | |
306 | *out++ = quote; | |
307 | } | |
308 | #endif | |
03c6228e AS |
309 | for (cp = argv[i]; *cp; ++cp) |
310 | { | |
c2226152 AS |
311 | if (*cp == '\n') |
312 | { | |
313 | /* A newline cannot be quoted with a backslash (it | |
314 | just disappears), only by putting it inside | |
315 | quotes. */ | |
5d60742e | 316 | *out++ = quote; |
c2226152 | 317 | *out++ = '\n'; |
5d60742e | 318 | *out++ = quote; |
c2226152 AS |
319 | } |
320 | else | |
321 | { | |
5d60742e EZ |
322 | #ifdef __MINGW32__ |
323 | if (*cp == quote) | |
324 | #else | |
c2226152 | 325 | if (strchr (special, *cp) != NULL) |
5d60742e | 326 | #endif |
c2226152 AS |
327 | *out++ = '\\'; |
328 | *out++ = *cp; | |
329 | } | |
03c6228e | 330 | } |
5d60742e EZ |
331 | #ifdef __MINGW32__ |
332 | if (quoted) | |
333 | *out++ = quote; | |
334 | #endif | |
c2a727fa TT |
335 | } |
336 | } | |
337 | *out = '\0'; | |
338 | } | |
339 | else | |
340 | { | |
341 | /* In this case we can't handle arguments that contain spaces, | |
342 | tabs, or newlines -- see breakup_args(). */ | |
343 | int i; | |
344 | int length = 0; | |
345 | ||
346 | for (i = 0; i < argc; ++i) | |
347 | { | |
348 | char *cp = strchr (argv[i], ' '); | |
349 | if (cp == NULL) | |
350 | cp = strchr (argv[i], '\t'); | |
351 | if (cp == NULL) | |
352 | cp = strchr (argv[i], '\n'); | |
353 | if (cp != NULL) | |
3e43a32a MS |
354 | error (_("can't handle command-line " |
355 | "argument containing whitespace")); | |
c2a727fa TT |
356 | length += strlen (argv[i]) + 1; |
357 | } | |
358 | ||
359 | result = (char *) xmalloc (length); | |
360 | result[0] = '\0'; | |
361 | for (i = 0; i < argc; ++i) | |
362 | { | |
363 | if (i > 0) | |
364 | strcat (result, " "); | |
365 | strcat (result, argv[i]); | |
366 | } | |
367 | } | |
368 | ||
369 | return result; | |
370 | } | |
552c04a7 TT |
371 | \f |
372 | ||
43ff13b4 JM |
373 | /* This function detects whether or not a '&' character (indicating |
374 | background execution) has been added as *the last* of the arguments ARGS | |
1777feb0 MS |
375 | of a command. If it has, it removes it and returns 1. Otherwise it |
376 | does nothing and returns 0. */ | |
6339bfc4 | 377 | |
c5aa993b | 378 | static int |
fba45db2 | 379 | strip_bg_char (char **args) |
43ff13b4 JM |
380 | { |
381 | char *p = NULL; | |
c5aa993b | 382 | |
9846de1b | 383 | p = strchr (*args, '&'); |
c5aa993b | 384 | |
9846de1b | 385 | if (p) |
43ff13b4 JM |
386 | { |
387 | if (p == (*args + strlen (*args) - 1)) | |
388 | { | |
c5aa993b | 389 | if (strlen (*args) > 1) |
43ff13b4 JM |
390 | { |
391 | do | |
392 | p--; | |
393 | while (*p == ' ' || *p == '\t'); | |
394 | *(p + 1) = '\0'; | |
395 | } | |
396 | else | |
397 | *args = 0; | |
398 | return 1; | |
399 | } | |
400 | } | |
401 | return 0; | |
402 | } | |
403 | ||
281b533b DJ |
404 | /* Common actions to take after creating any sort of inferior, by any |
405 | means (running, attaching, connecting, et cetera). The target | |
406 | should be stopped. */ | |
407 | ||
408 | void | |
409 | post_create_inferior (struct target_ops *target, int from_tty) | |
410 | { | |
ce406537 PA |
411 | volatile struct gdb_exception ex; |
412 | ||
b79599ff DP |
413 | /* Be sure we own the terminal in case write operations are performed. */ |
414 | target_terminal_ours (); | |
415 | ||
424163ea DJ |
416 | /* If the target hasn't taken care of this already, do it now. |
417 | Targets which need to access registers during to_open, | |
418 | to_create_inferior, or to_attach should do it earlier; but many | |
419 | don't need to. */ | |
420 | target_find_description (); | |
421 | ||
ce406537 PA |
422 | /* Now that we know the register layout, retrieve current PC. But |
423 | if the PC is unavailable (e.g., we're opening a core file with | |
424 | missing registers info), ignore it. */ | |
425 | stop_pc = 0; | |
426 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
427 | { | |
428 | stop_pc = regcache_read_pc (get_current_regcache ()); | |
429 | } | |
430 | if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR) | |
431 | throw_exception (ex); | |
f698437e | 432 | |
50c71eaf PA |
433 | if (exec_bfd) |
434 | { | |
2eff07b3 PP |
435 | const unsigned solib_add_generation |
436 | = current_program_space->solib_add_generation; | |
437 | ||
9353355f DJ |
438 | /* Create the hooks to handle shared library load and unload |
439 | events. */ | |
268a4a75 | 440 | solib_create_inferior_hook (from_tty); |
268a4a75 | 441 | |
2eff07b3 PP |
442 | if (current_program_space->solib_add_generation == solib_add_generation) |
443 | { | |
444 | /* The platform-specific hook should load initial shared libraries, | |
445 | but didn't. FROM_TTY will be incorrectly 0 but such solib | |
446 | targets should be fixed anyway. Call it only after the solib | |
447 | target has been initialized by solib_create_inferior_hook. */ | |
448 | ||
449 | if (info_verbose) | |
450 | warning (_("platform-specific solib_create_inferior_hook did " | |
451 | "not load initial shared libraries.")); | |
452 | ||
453 | /* If the solist is global across processes, there's no need to | |
454 | refetch it here. */ | |
f5656ead | 455 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
4d1eb6b4 | 456 | solib_add (NULL, 0, target, auto_solib_add); |
2eff07b3 | 457 | } |
9353355f DJ |
458 | } |
459 | ||
ea5d7a99 PM |
460 | /* If the user sets watchpoints before execution having started, |
461 | then she gets software watchpoints, because GDB can't know which | |
462 | target will end up being pushed, or if it supports hardware | |
463 | watchpoints or not. breakpoint_re_set takes care of promoting | |
464 | watchpoints to hardware watchpoints if possible, however, if this | |
465 | new inferior doesn't load shared libraries or we don't pull in | |
466 | symbols from any other source on this target/arch, | |
467 | breakpoint_re_set is never called. Call it now so that software | |
468 | watchpoints get a chance to be promoted to hardware watchpoints | |
469 | if the now pushed target supports hardware watchpoints. */ | |
470 | breakpoint_re_set (); | |
471 | ||
281b533b DJ |
472 | observer_notify_inferior_created (target, from_tty); |
473 | } | |
474 | ||
a4d5f2e0 JB |
475 | /* Kill the inferior if already running. This function is designed |
476 | to be called when we are about to start the execution of the program | |
477 | from the beginning. Ask the user to confirm that he wants to restart | |
478 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 479 | |
8edfe269 | 480 | static void |
a4d5f2e0 JB |
481 | kill_if_already_running (int from_tty) |
482 | { | |
39f77062 | 483 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 484 | { |
8edfe269 DJ |
485 | /* Bail out before killing the program if we will not be able to |
486 | restart it. */ | |
487 | target_require_runnable (); | |
488 | ||
adf40b2e | 489 | if (from_tty |
9e2f0ad4 HZ |
490 | && !query (_("The program being debugged has been started already.\n\ |
491 | Start it from the beginning? "))) | |
8a3fe4f8 | 492 | error (_("Program not restarted.")); |
c906108c | 493 | target_kill (); |
c906108c | 494 | } |
a4d5f2e0 JB |
495 | } |
496 | ||
329ea579 | 497 | /* See inferior.h. */ |
8bc2fe48 | 498 | |
329ea579 | 499 | void |
8bc2fe48 PA |
500 | prepare_execution_command (struct target_ops *target, int background) |
501 | { | |
502 | /* If we get a request for running in the bg but the target | |
503 | doesn't support it, error out. */ | |
504 | if (background && !target->to_can_async_p (target)) | |
505 | error (_("Asynchronous execution not supported on this target.")); | |
506 | ||
507 | /* If we don't get a request of running in the bg, then we need | |
508 | to simulate synchronous (fg) execution. */ | |
509 | if (!background && target->to_can_async_p (target)) | |
510 | { | |
511 | /* Simulate synchronous execution. Note no cleanup is necessary | |
512 | for this. stdin is re-enabled whenever an error reaches the | |
513 | top level. */ | |
514 | async_disable_stdin (); | |
515 | } | |
516 | } | |
517 | ||
1777feb0 | 518 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
f67a969f JB |
519 | a temporary breakpoint at the begining of the main program before |
520 | running the program. */ | |
521 | ||
a4d5f2e0 | 522 | static void |
f67a969f | 523 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
524 | { |
525 | char *exec_file; | |
29f49a6a PA |
526 | struct cleanup *old_chain; |
527 | ptid_t ptid; | |
79a45e25 | 528 | struct ui_out *uiout = current_uiout; |
b3ccfe11 | 529 | struct target_ops *run_target; |
8bc2fe48 | 530 | int async_exec = 0; |
c906108c | 531 | |
a4d5f2e0 JB |
532 | dont_repeat (); |
533 | ||
534 | kill_if_already_running (from_tty); | |
3c35e65b UW |
535 | |
536 | init_wait_for_inferior (); | |
c906108c SS |
537 | clear_breakpoint_hit_counts (); |
538 | ||
fd79ecee DJ |
539 | /* Clean up any leftovers from other runs. Some other things from |
540 | this function should probably be moved into target_pre_inferior. */ | |
541 | target_pre_inferior (from_tty); | |
542 | ||
39ad761d JB |
543 | /* The comment here used to read, "The exec file is re-read every |
544 | time we do a generic_mourn_inferior, so we just have to worry | |
545 | about the symbol file." The `generic_mourn_inferior' function | |
546 | gets called whenever the program exits. However, suppose the | |
547 | program exits, and *then* the executable file changes? We need | |
548 | to check again here. Since reopen_exec_file doesn't do anything | |
549 | if the timestamp hasn't changed, I don't see the harm. */ | |
550 | reopen_exec_file (); | |
c906108c SS |
551 | reread_symbols (); |
552 | ||
8bc2fe48 PA |
553 | if (args != NULL) |
554 | async_exec = strip_bg_char (&args); | |
f67a969f | 555 | |
8bc2fe48 PA |
556 | /* Do validation and preparation before possibly changing anything |
557 | in the inferior. */ | |
39ad761d | 558 | |
b3ccfe11 TT |
559 | run_target = find_run_target (); |
560 | ||
8bc2fe48 PA |
561 | prepare_execution_command (run_target, async_exec); |
562 | ||
b3ccfe11 | 563 | if (non_stop && !run_target->to_supports_non_stop (run_target)) |
9908b566 VP |
564 | error (_("The target does not support running in non-stop mode.")); |
565 | ||
8bc2fe48 PA |
566 | /* Done. Can now set breakpoints, change inferior args, etc. */ |
567 | ||
568 | /* Insert the temporary breakpoint if a location was specified. */ | |
569 | if (tbreak_at_main) | |
570 | tbreak_command (main_name (), 0); | |
571 | ||
572 | exec_file = (char *) get_exec_file (0); | |
573 | ||
c906108c SS |
574 | /* We keep symbols from add-symbol-file, on the grounds that the |
575 | user might want to add some symbols before running the program | |
576 | (right?). But sometimes (dynamic loading where the user manually | |
577 | introduces the new symbols with add-symbol-file), the code which | |
578 | the symbols describe does not persist between runs. Currently | |
579 | the user has to manually nuke all symbols between runs if they | |
580 | want them to go away (PR 2207). This is probably reasonable. */ | |
581 | ||
8bc2fe48 PA |
582 | /* If there were other args, beside '&', process them. */ |
583 | if (args != NULL) | |
584 | set_inferior_args (args); | |
c906108c SS |
585 | |
586 | if (from_tty) | |
587 | { | |
8b93c638 JM |
588 | ui_out_field_string (uiout, NULL, "Starting program"); |
589 | ui_out_text (uiout, ": "); | |
590 | if (exec_file) | |
591 | ui_out_field_string (uiout, "execfile", exec_file); | |
592 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
593 | /* We call get_inferior_args() because we might need to compute |
594 | the value now. */ | |
595 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
596 | ui_out_text (uiout, "\n"); |
597 | ui_out_flush (uiout); | |
c906108c SS |
598 | } |
599 | ||
552c04a7 TT |
600 | /* We call get_inferior_args() because we might need to compute |
601 | the value now. */ | |
b3ccfe11 TT |
602 | run_target->to_create_inferior (run_target, exec_file, get_inferior_args (), |
603 | environ_vector (current_inferior ()->environment), | |
604 | from_tty); | |
605 | /* to_create_inferior should push the target, so after this point we | |
606 | shouldn't refer to run_target again. */ | |
607 | run_target = NULL; | |
281b533b | 608 | |
29f49a6a PA |
609 | /* We're starting off a new process. When we get out of here, in |
610 | non-stop mode, finish the state of all threads of that process, | |
611 | but leave other threads alone, as they may be stopped in internal | |
612 | events --- the frontend shouldn't see them as stopped. In | |
613 | all-stop, always finish the state of all threads, as we may be | |
614 | resuming more than just the new process. */ | |
615 | if (non_stop) | |
616 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
617 | else | |
618 | ptid = minus_one_ptid; | |
619 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
620 | ||
de1b3c3d PA |
621 | /* Pass zero for FROM_TTY, because at this point the "run" command |
622 | has done its thing; now we are setting up the running program. */ | |
623 | post_create_inferior (¤t_target, 0); | |
281b533b | 624 | |
74d1f91e JK |
625 | /* Start the target running. Do not use -1 continuation as it would skip |
626 | breakpoint right at the entry point. */ | |
a493e3e2 | 627 | proceed (regcache_read_pc (get_current_regcache ()), GDB_SIGNAL_0, 0); |
c906108c | 628 | |
29f49a6a PA |
629 | /* Since there was no error, there's no need to finish the thread |
630 | states here. */ | |
631 | discard_cleanups (old_chain); | |
632 | } | |
c906108c | 633 | |
f67a969f JB |
634 | static void |
635 | run_command (char *args, int from_tty) | |
636 | { | |
637 | run_command_1 (args, from_tty, 0); | |
638 | } | |
639 | ||
c906108c | 640 | static void |
fba45db2 | 641 | run_no_args_command (char *args, int from_tty) |
c906108c | 642 | { |
3f81c18a | 643 | set_inferior_args (""); |
c906108c | 644 | } |
c906108c | 645 | \f |
c5aa993b | 646 | |
a4d5f2e0 JB |
647 | /* Start the execution of the program up until the beginning of the main |
648 | program. */ | |
649 | ||
650 | static void | |
651 | start_command (char *args, int from_tty) | |
652 | { | |
653 | /* Some languages such as Ada need to search inside the program | |
654 | minimal symbols for the location where to put the temporary | |
655 | breakpoint before starting. */ | |
656 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 657 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 658 | |
f67a969f JB |
659 | /* Run the program until reaching the main procedure... */ |
660 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
661 | } |
662 | ||
8cae4b3f PA |
663 | static int |
664 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
665 | { | |
74531fed PA |
666 | /* We go through all threads individually instead of compressing |
667 | into a single target `resume_all' request, because some threads | |
668 | may be stopped in internal breakpoints/events, or stopped waiting | |
669 | for its turn in the displaced stepping queue (that is, they are | |
670 | running && !executing). The target side has no idea about why | |
671 | the thread is stopped, so a `resume_all' command would resume too | |
672 | much. If/when GDB gains a way to tell the target `hold this | |
673 | thread stopped until I say otherwise', then we can optimize | |
674 | this. */ | |
4f8d22e3 | 675 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
676 | return 0; |
677 | ||
dcf4fbde | 678 | switch_to_thread (thread->ptid); |
70509625 | 679 | clear_proceed_status (0); |
a493e3e2 | 680 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
8cae4b3f PA |
681 | return 0; |
682 | } | |
683 | ||
70221824 | 684 | static void |
d729566a PA |
685 | ensure_valid_thread (void) |
686 | { | |
687 | if (ptid_equal (inferior_ptid, null_ptid) | |
688 | || is_exited (inferior_ptid)) | |
3e43a32a | 689 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
690 | } |
691 | ||
573cda03 | 692 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 693 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
694 | disallow those commands. */ |
695 | ||
70221824 | 696 | static void |
573cda03 SS |
697 | ensure_not_tfind_mode (void) |
698 | { | |
699 | if (get_traceframe_number () >= 0) | |
3e43a32a | 700 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
701 | } |
702 | ||
3d3fef6b YQ |
703 | /* Throw an error indicating the current thread is running. */ |
704 | ||
705 | static void | |
706 | error_is_running (void) | |
707 | { | |
708 | error (_("Cannot execute this command while " | |
709 | "the selected thread is running.")); | |
710 | } | |
711 | ||
712 | /* Calls error_is_running if the current thread is running. */ | |
713 | ||
714 | static void | |
715 | ensure_not_running (void) | |
716 | { | |
717 | if (is_running (inferior_ptid)) | |
718 | error_is_running (); | |
719 | } | |
720 | ||
77ebaa5a VP |
721 | void |
722 | continue_1 (int all_threads) | |
723 | { | |
3d488bfc | 724 | ERROR_NO_INFERIOR; |
573cda03 | 725 | ensure_not_tfind_mode (); |
3d488bfc | 726 | |
77ebaa5a VP |
727 | if (non_stop && all_threads) |
728 | { | |
729 | /* Don't error out if the current thread is running, because | |
abbb1732 | 730 | there may be other stopped threads. */ |
77ebaa5a VP |
731 | struct cleanup *old_chain; |
732 | ||
733 | /* Backup current thread and selected frame. */ | |
734 | old_chain = make_cleanup_restore_current_thread (); | |
735 | ||
736 | iterate_over_threads (proceed_thread_callback, NULL); | |
737 | ||
738 | /* Restore selected ptid. */ | |
739 | do_cleanups (old_chain); | |
740 | } | |
741 | else | |
742 | { | |
d729566a | 743 | ensure_valid_thread (); |
77ebaa5a | 744 | ensure_not_running (); |
70509625 | 745 | clear_proceed_status (0); |
a493e3e2 | 746 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
77ebaa5a VP |
747 | } |
748 | } | |
749 | ||
8cae4b3f | 750 | /* continue [-a] [proceed-count] [&] */ |
6339bfc4 | 751 | |
1dd5fedc | 752 | static void |
8cae4b3f | 753 | continue_command (char *args, int from_tty) |
c906108c | 754 | { |
c5aa993b | 755 | int async_exec = 0; |
8cae4b3f | 756 | int all_threads = 0; |
c906108c SS |
757 | ERROR_NO_INFERIOR; |
758 | ||
1777feb0 | 759 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
760 | if (args != NULL) |
761 | async_exec = strip_bg_char (&args); | |
43ff13b4 | 762 | |
8bc2fe48 | 763 | prepare_execution_command (¤t_target, async_exec); |
c906108c | 764 | |
8cae4b3f PA |
765 | if (args != NULL) |
766 | { | |
767 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
768 | { | |
769 | all_threads = 1; | |
770 | args += sizeof ("-a") - 1; | |
771 | if (*args == '\0') | |
772 | args = NULL; | |
773 | } | |
774 | } | |
775 | ||
776 | if (!non_stop && all_threads) | |
777 | error (_("`-a' is meaningless in all-stop mode.")); | |
778 | ||
779 | if (args != NULL && all_threads) | |
3e43a32a MS |
780 | error (_("Can't resume all threads and specify " |
781 | "proceed count simultaneously.")); | |
8cae4b3f PA |
782 | |
783 | /* If we have an argument left, set proceed count of breakpoint we | |
784 | stopped at. */ | |
785 | if (args != NULL) | |
c906108c | 786 | { |
347bddb7 | 787 | bpstat bs = NULL; |
8671a17b PA |
788 | int num, stat; |
789 | int stopped = 0; | |
347bddb7 PA |
790 | struct thread_info *tp; |
791 | ||
792 | if (non_stop) | |
e09875d4 | 793 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
794 | else |
795 | { | |
796 | ptid_t last_ptid; | |
797 | struct target_waitstatus ws; | |
798 | ||
799 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 800 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
801 | } |
802 | if (tp != NULL) | |
16c381f0 | 803 | bs = tp->control.stop_bpstat; |
8671a17b PA |
804 | |
805 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
806 | if (stat > 0) | |
807 | { | |
808 | set_ignore_count (num, | |
8cae4b3f | 809 | parse_and_eval_long (args) - 1, |
8671a17b PA |
810 | from_tty); |
811 | /* set_ignore_count prints a message ending with a period. | |
812 | So print two spaces before "Continuing.". */ | |
813 | if (from_tty) | |
814 | printf_filtered (" "); | |
815 | stopped = 1; | |
816 | } | |
817 | ||
818 | if (!stopped && from_tty) | |
c906108c SS |
819 | { |
820 | printf_filtered | |
821 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
822 | } | |
c906108c SS |
823 | } |
824 | ||
825 | if (from_tty) | |
a3f17187 | 826 | printf_filtered (_("Continuing.\n")); |
c906108c | 827 | |
77ebaa5a | 828 | continue_1 (all_threads); |
c906108c SS |
829 | } |
830 | \f | |
edb3359d DJ |
831 | /* Record the starting point of a "step" or "next" command. */ |
832 | ||
833 | static void | |
834 | set_step_frame (void) | |
835 | { | |
836 | struct symtab_and_line sal; | |
837 | ||
838 | find_frame_sal (get_current_frame (), &sal); | |
839 | set_step_info (get_current_frame (), sal); | |
840 | } | |
841 | ||
c906108c SS |
842 | /* Step until outside of current statement. */ |
843 | ||
c906108c | 844 | static void |
fba45db2 | 845 | step_command (char *count_string, int from_tty) |
c906108c SS |
846 | { |
847 | step_1 (0, 0, count_string); | |
848 | } | |
849 | ||
850 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
851 | ||
c906108c | 852 | static void |
fba45db2 | 853 | next_command (char *count_string, int from_tty) |
c906108c SS |
854 | { |
855 | step_1 (1, 0, count_string); | |
856 | } | |
857 | ||
858 | /* Likewise, but step only one instruction. */ | |
859 | ||
1dd5fedc | 860 | static void |
fba45db2 | 861 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
862 | { |
863 | step_1 (0, 1, count_string); | |
864 | } | |
865 | ||
1dd5fedc | 866 | static void |
fba45db2 | 867 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
868 | { |
869 | step_1 (1, 1, count_string); | |
870 | } | |
871 | ||
186c406b | 872 | void |
611c83ae | 873 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 874 | { |
611c83ae PA |
875 | int thread = * (int *) arg; |
876 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
877 | } |
878 | ||
c906108c | 879 | static void |
fba45db2 | 880 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 881 | { |
52f0bd74 | 882 | int count = 1; |
f107f563 | 883 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 884 | int async_exec = 0; |
b3dc826b | 885 | int thread = -1; |
c5aa993b | 886 | |
c906108c | 887 | ERROR_NO_INFERIOR; |
573cda03 | 888 | ensure_not_tfind_mode (); |
d729566a | 889 | ensure_valid_thread (); |
94cc34af | 890 | ensure_not_running (); |
43ff13b4 JM |
891 | |
892 | if (count_string) | |
893 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 894 | |
8bc2fe48 | 895 | prepare_execution_command (¤t_target, async_exec); |
43ff13b4 | 896 | |
bb518678 | 897 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 898 | |
1777feb0 | 899 | if (!single_inst || skip_subroutines) /* Leave si command alone. */ |
c906108c | 900 | { |
186c406b TT |
901 | struct thread_info *tp = inferior_thread (); |
902 | ||
611c83ae | 903 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 904 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 905 | |
186c406b | 906 | set_longjmp_breakpoint (tp, get_frame_id (get_current_frame ())); |
611c83ae | 907 | |
b3dc826b | 908 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
909 | } |
910 | ||
37d94800 | 911 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 912 | if (!target_can_async_p ()) |
c2d11a7d JM |
913 | { |
914 | for (; count > 0; count--) | |
915 | { | |
37d94800 | 916 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 917 | |
751b8ce1 PA |
918 | if (!target_has_execution) |
919 | break; | |
c2d11a7d JM |
920 | else |
921 | { | |
751b8ce1 PA |
922 | struct thread_info *tp = inferior_thread (); |
923 | ||
924 | if (!tp->control.stop_step || !tp->step_multi) | |
925 | { | |
926 | /* If we stopped for some reason that is not stepping | |
927 | there are no further steps to make. */ | |
928 | tp->step_multi = 0; | |
929 | break; | |
930 | } | |
c2d11a7d | 931 | } |
c2d11a7d JM |
932 | } |
933 | ||
f107f563 | 934 | do_cleanups (cleanups); |
c2d11a7d | 935 | } |
c2d11a7d JM |
936 | else |
937 | { | |
37d94800 PA |
938 | /* In the case of an asynchronous target things get complicated; |
939 | do only one step for now, before returning control to the | |
940 | event loop. Let the continuation figure out how many other | |
941 | steps we need to do, and handle them one at the time, through | |
942 | step_once. */ | |
b3dc826b | 943 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 944 | |
611c83ae | 945 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
946 | disable the longjmp breakpoint as appropriate. */ |
947 | discard_cleanups (cleanups); | |
c906108c | 948 | } |
c2d11a7d | 949 | } |
c906108c | 950 | |
bfec99b2 PA |
951 | struct step_1_continuation_args |
952 | { | |
953 | int count; | |
954 | int skip_subroutines; | |
955 | int single_inst; | |
956 | int thread; | |
957 | }; | |
958 | ||
c2d11a7d JM |
959 | /* Called after we are done with one step operation, to check whether |
960 | we need to step again, before we print the prompt and return control | |
1777feb0 MS |
961 | to the user. If count is > 1, we will need to do one more call to |
962 | proceed(), via step_once(). Basically it is like step_once and | |
963 | step_1_continuation are co-recursive. */ | |
6339bfc4 | 964 | |
c2d11a7d | 965 | static void |
fa4cd53f | 966 | step_1_continuation (void *args, int err) |
c2d11a7d | 967 | { |
bfec99b2 | 968 | struct step_1_continuation_args *a = args; |
f13468d9 | 969 | |
af679fd0 | 970 | if (target_has_execution) |
f13468d9 | 971 | { |
af679fd0 PA |
972 | struct thread_info *tp; |
973 | ||
974 | tp = inferior_thread (); | |
fa4cd53f PA |
975 | if (!err |
976 | && tp->step_multi && tp->control.stop_step) | |
af679fd0 PA |
977 | { |
978 | /* There are more steps to make, and we did stop due to | |
979 | ending a stepping range. Do another step. */ | |
37d94800 PA |
980 | step_once (a->skip_subroutines, a->single_inst, |
981 | a->count - 1, a->thread); | |
af679fd0 PA |
982 | return; |
983 | } | |
984 | tp->step_multi = 0; | |
f107f563 | 985 | } |
af679fd0 | 986 | |
fa4cd53f PA |
987 | /* We either hit an error, or stopped for some reason that is |
988 | not stepping, or there are no further steps to make. | |
989 | Cleanup. */ | |
af679fd0 PA |
990 | if (!a->single_inst || a->skip_subroutines) |
991 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
992 | } |
993 | ||
37d94800 PA |
994 | /* Do just one step operation. This is useful to implement the 'step |
995 | n' kind of commands. In case of asynchronous targets, we will have | |
996 | to set up a continuation to be done after the target stops (after | |
997 | this one step). For synch targets, the caller handles further | |
998 | stepping. */ | |
999 | ||
1000 | static void | |
611c83ae | 1001 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 1002 | { |
edb3359d | 1003 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
1004 | |
1005 | if (count > 0) | |
c906108c | 1006 | { |
4e1c45ea PA |
1007 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
1008 | the longjmp breakpoint was not required. Use the | |
1009 | INFERIOR_PTID thread instead, which is the same thread when | |
1010 | THREAD is set. */ | |
1011 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 1012 | |
70509625 | 1013 | clear_proceed_status (!skip_subroutines); |
edb3359d | 1014 | set_step_frame (); |
c906108c | 1015 | |
c5aa993b | 1016 | if (!single_inst) |
c906108c | 1017 | { |
1641cfcc PA |
1018 | CORE_ADDR pc; |
1019 | ||
edb3359d | 1020 | /* Step at an inlined function behaves like "down". */ |
3f01d0d0 | 1021 | if (!skip_subroutines |
edb3359d DJ |
1022 | && inline_skipped_frames (inferior_ptid)) |
1023 | { | |
09cee04b PA |
1024 | ptid_t resume_ptid; |
1025 | ||
1026 | /* Pretend that we've ran. */ | |
1027 | resume_ptid = user_visible_resume_ptid (1); | |
1028 | set_running (resume_ptid, 1); | |
1029 | ||
edb3359d DJ |
1030 | step_into_inline_frame (inferior_ptid); |
1031 | if (count > 1) | |
1032 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
1033 | else | |
09cee04b PA |
1034 | { |
1035 | /* Pretend that we've stopped. */ | |
1036 | normal_stop (); | |
1037 | ||
1038 | if (target_can_async_p ()) | |
1039 | inferior_event_handler (INF_EXEC_COMPLETE, NULL); | |
1040 | } | |
edb3359d DJ |
1041 | return; |
1042 | } | |
1043 | ||
1641cfcc PA |
1044 | pc = get_frame_pc (frame); |
1045 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
1046 | &tp->control.step_range_start, |
1047 | &tp->control.step_range_end); | |
5fbbeb29 | 1048 | |
c1e36e3e PA |
1049 | tp->control.may_range_step = 1; |
1050 | ||
5fbbeb29 | 1051 | /* If we have no line info, switch to stepi mode. */ |
16c381f0 | 1052 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
c1e36e3e PA |
1053 | { |
1054 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1055 | tp->control.may_range_step = 0; | |
1056 | } | |
16c381f0 | 1057 | else if (tp->control.step_range_end == 0) |
c906108c | 1058 | { |
2c02bd72 | 1059 | const char *name; |
abbb1732 | 1060 | |
1641cfcc | 1061 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1062 | &tp->control.step_range_start, |
1063 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1064 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1065 | |
1066 | target_terminal_ours (); | |
3e43a32a MS |
1067 | printf_filtered (_("Single stepping until exit from function %s," |
1068 | "\nwhich has no line number information.\n"), | |
1069 | name); | |
c906108c SS |
1070 | } |
1071 | } | |
1072 | else | |
1073 | { | |
1074 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1075 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1076 | if (!skip_subroutines) |
1077 | /* It is stepi. | |
1078 | Don't step over function calls, not even to functions lacking | |
1079 | line numbers. */ | |
16c381f0 | 1080 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1081 | } |
1082 | ||
1083 | if (skip_subroutines) | |
16c381f0 | 1084 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1085 | |
95e54da7 | 1086 | tp->step_multi = (count > 1); |
a493e3e2 | 1087 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1088 | |
37d94800 PA |
1089 | /* For async targets, register a continuation to do any |
1090 | additional steps. For sync targets, the caller will handle | |
1091 | further stepping. */ | |
1092 | if (target_can_async_p ()) | |
1093 | { | |
1094 | struct step_1_continuation_args *args; | |
1095 | ||
1096 | args = xmalloc (sizeof (*args)); | |
1097 | args->skip_subroutines = skip_subroutines; | |
1098 | args->single_inst = single_inst; | |
1099 | args->count = count; | |
1100 | args->thread = thread; | |
1101 | ||
1102 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1103 | } | |
c906108c | 1104 | } |
c906108c | 1105 | } |
c2d11a7d | 1106 | |
c906108c SS |
1107 | \f |
1108 | /* Continue program at specified address. */ | |
1109 | ||
1110 | static void | |
fba45db2 | 1111 | jump_command (char *arg, int from_tty) |
c906108c | 1112 | { |
5af949e3 | 1113 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1114 | CORE_ADDR addr; |
c906108c SS |
1115 | struct symtabs_and_lines sals; |
1116 | struct symtab_and_line sal; | |
1117 | struct symbol *fn; | |
1118 | struct symbol *sfn; | |
43ff13b4 | 1119 | int async_exec = 0; |
c5aa993b | 1120 | |
c906108c | 1121 | ERROR_NO_INFERIOR; |
573cda03 | 1122 | ensure_not_tfind_mode (); |
d729566a | 1123 | ensure_valid_thread (); |
94cc34af | 1124 | ensure_not_running (); |
c906108c | 1125 | |
1777feb0 | 1126 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1127 | if (arg != NULL) |
1128 | async_exec = strip_bg_char (&arg); | |
1129 | ||
8bc2fe48 | 1130 | prepare_execution_command (¤t_target, async_exec); |
43ff13b4 | 1131 | |
c906108c | 1132 | if (!arg) |
e2e0b3e5 | 1133 | error_no_arg (_("starting address")); |
c906108c | 1134 | |
39cf75f7 | 1135 | sals = decode_line_with_last_displayed (arg, DECODE_LINE_FUNFIRSTLINE); |
c906108c SS |
1136 | if (sals.nelts != 1) |
1137 | { | |
8a3fe4f8 | 1138 | error (_("Unreasonable jump request")); |
c906108c SS |
1139 | } |
1140 | ||
1141 | sal = sals.sals[0]; | |
b8c9b27d | 1142 | xfree (sals.sals); |
c906108c SS |
1143 | |
1144 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1145 | error (_("No source file has been specified.")); |
c906108c | 1146 | |
1777feb0 | 1147 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1148 | |
1777feb0 | 1149 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1150 | fn = get_frame_function (get_current_frame ()); |
1151 | sfn = find_pc_function (sal.pc); | |
1152 | if (fn != NULL && sfn != fn) | |
1153 | { | |
9e2f0ad4 | 1154 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1155 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1156 | { |
8a3fe4f8 | 1157 | error (_("Not confirmed.")); |
c906108c SS |
1158 | /* NOTREACHED */ |
1159 | } | |
1160 | } | |
1161 | ||
c5aa993b | 1162 | if (sfn != NULL) |
c906108c SS |
1163 | { |
1164 | fixup_symbol_section (sfn, 0); | |
e27d198c TT |
1165 | if (section_is_overlay (SYMBOL_OBJ_SECTION (SYMBOL_OBJFILE (sfn), sfn)) && |
1166 | !section_is_mapped (SYMBOL_OBJ_SECTION (SYMBOL_OBJFILE (sfn), sfn))) | |
c906108c | 1167 | { |
3e43a32a MS |
1168 | if (!query (_("WARNING!!! Destination is in " |
1169 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1170 | { |
8a3fe4f8 | 1171 | error (_("Not confirmed.")); |
c906108c SS |
1172 | /* NOTREACHED */ |
1173 | } | |
1174 | } | |
1175 | } | |
1176 | ||
c906108c SS |
1177 | addr = sal.pc; |
1178 | ||
1179 | if (from_tty) | |
1180 | { | |
a3f17187 | 1181 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1182 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1183 | printf_filtered (".\n"); |
1184 | } | |
1185 | ||
70509625 | 1186 | clear_proceed_status (0); |
a493e3e2 | 1187 | proceed (addr, GDB_SIGNAL_0, 0); |
c906108c | 1188 | } |
c906108c | 1189 | \f |
c5aa993b | 1190 | |
1777feb0 | 1191 | /* Go to line or address in current procedure. */ |
6339bfc4 | 1192 | |
c906108c | 1193 | static void |
fba45db2 | 1194 | go_command (char *line_no, int from_tty) |
c906108c | 1195 | { |
c5aa993b | 1196 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1197 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1198 | else |
1199 | { | |
b83266a0 SS |
1200 | tbreak_command (line_no, from_tty); |
1201 | jump_command (line_no, from_tty); | |
c906108c SS |
1202 | } |
1203 | } | |
c906108c | 1204 | \f |
c5aa993b | 1205 | |
c906108c SS |
1206 | /* Continue program giving it specified signal. */ |
1207 | ||
1208 | static void | |
fba45db2 | 1209 | signal_command (char *signum_exp, int from_tty) |
c906108c | 1210 | { |
2ea28649 | 1211 | enum gdb_signal oursig; |
32c1e744 | 1212 | int async_exec = 0; |
c906108c SS |
1213 | |
1214 | dont_repeat (); /* Too dangerous. */ | |
1215 | ERROR_NO_INFERIOR; | |
573cda03 | 1216 | ensure_not_tfind_mode (); |
d729566a | 1217 | ensure_valid_thread (); |
94cc34af | 1218 | ensure_not_running (); |
c906108c | 1219 | |
32c1e744 VP |
1220 | /* Find out whether we must run in the background. */ |
1221 | if (signum_exp != NULL) | |
1222 | async_exec = strip_bg_char (&signum_exp); | |
1223 | ||
8bc2fe48 | 1224 | prepare_execution_command (¤t_target, async_exec); |
32c1e744 | 1225 | |
c906108c | 1226 | if (!signum_exp) |
e2e0b3e5 | 1227 | error_no_arg (_("signal number")); |
c906108c SS |
1228 | |
1229 | /* It would be even slicker to make signal names be valid expressions, | |
1230 | (the type could be "enum $signal" or some such), then the user could | |
1231 | assign them to convenience variables. */ | |
2ea28649 | 1232 | oursig = gdb_signal_from_name (signum_exp); |
c906108c | 1233 | |
a493e3e2 | 1234 | if (oursig == GDB_SIGNAL_UNKNOWN) |
c906108c SS |
1235 | { |
1236 | /* No, try numeric. */ | |
bb518678 | 1237 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1238 | |
1239 | if (num == 0) | |
a493e3e2 | 1240 | oursig = GDB_SIGNAL_0; |
c906108c | 1241 | else |
2ea28649 | 1242 | oursig = gdb_signal_from_command (num); |
c906108c SS |
1243 | } |
1244 | ||
70509625 PA |
1245 | /* Look for threads other than the current that this command ends up |
1246 | resuming too (due to schedlock off), and warn if they'll get a | |
1247 | signal delivered. "signal 0" is used to suppress a previous | |
1248 | signal, but if the current thread is no longer the one that got | |
1249 | the signal, then the user is potentially suppressing the signal | |
1250 | of the wrong thread. */ | |
1251 | if (!non_stop) | |
1252 | { | |
1253 | struct thread_info *tp; | |
1254 | ptid_t resume_ptid; | |
1255 | int must_confirm = 0; | |
1256 | ||
1257 | /* This indicates what will be resumed. Either a single thread, | |
1258 | a whole process, or all threads of all processes. */ | |
1259 | resume_ptid = user_visible_resume_ptid (0); | |
1260 | ||
1261 | ALL_NON_EXITED_THREADS (tp) | |
1262 | { | |
1263 | if (ptid_equal (tp->ptid, inferior_ptid)) | |
1264 | continue; | |
1265 | if (!ptid_match (tp->ptid, resume_ptid)) | |
1266 | continue; | |
1267 | ||
1268 | if (tp->suspend.stop_signal != GDB_SIGNAL_0 | |
1269 | && signal_pass_state (tp->suspend.stop_signal)) | |
1270 | { | |
1271 | if (!must_confirm) | |
1272 | printf_unfiltered (_("Note:\n")); | |
1273 | printf_unfiltered (_(" Thread %d previously stopped with signal %s, %s.\n"), | |
1274 | tp->num, | |
1275 | gdb_signal_to_name (tp->suspend.stop_signal), | |
1276 | gdb_signal_to_string (tp->suspend.stop_signal)); | |
1277 | must_confirm = 1; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | if (must_confirm | |
1282 | && !query (_("Continuing thread %d (the current thread) with specified signal will\n" | |
1283 | "still deliver the signals noted above to their respective threads.\n" | |
1284 | "Continue anyway? "), | |
1285 | inferior_thread ()->num)) | |
1286 | error (_("Not confirmed.")); | |
1287 | } | |
1288 | ||
c906108c SS |
1289 | if (from_tty) |
1290 | { | |
a493e3e2 | 1291 | if (oursig == GDB_SIGNAL_0) |
a3f17187 | 1292 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1293 | else |
a3f17187 | 1294 | printf_filtered (_("Continuing with signal %s.\n"), |
2ea28649 | 1295 | gdb_signal_to_name (oursig)); |
c906108c SS |
1296 | } |
1297 | ||
70509625 | 1298 | clear_proceed_status (0); |
a12cc160 | 1299 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1300 | } |
1301 | ||
81219e53 DE |
1302 | /* Queue a signal to be delivered to the current thread. */ |
1303 | ||
1304 | static void | |
1305 | queue_signal_command (char *signum_exp, int from_tty) | |
1306 | { | |
1307 | enum gdb_signal oursig; | |
1308 | struct thread_info *tp; | |
1309 | ||
1310 | ERROR_NO_INFERIOR; | |
1311 | ensure_not_tfind_mode (); | |
1312 | ensure_valid_thread (); | |
1313 | ensure_not_running (); | |
1314 | ||
1315 | if (signum_exp == NULL) | |
1316 | error_no_arg (_("signal number")); | |
1317 | ||
1318 | /* It would be even slicker to make signal names be valid expressions, | |
1319 | (the type could be "enum $signal" or some such), then the user could | |
1320 | assign them to convenience variables. */ | |
1321 | oursig = gdb_signal_from_name (signum_exp); | |
1322 | ||
1323 | if (oursig == GDB_SIGNAL_UNKNOWN) | |
1324 | { | |
1325 | /* No, try numeric. */ | |
1326 | int num = parse_and_eval_long (signum_exp); | |
1327 | ||
1328 | if (num == 0) | |
1329 | oursig = GDB_SIGNAL_0; | |
1330 | else | |
1331 | oursig = gdb_signal_from_command (num); | |
1332 | } | |
1333 | ||
1334 | if (oursig != GDB_SIGNAL_0 | |
1335 | && !signal_pass_state (oursig)) | |
1336 | error (_("Signal handling set to not pass this signal to the program.")); | |
1337 | ||
1338 | tp = inferior_thread (); | |
1339 | tp->suspend.stop_signal = oursig; | |
1340 | } | |
1341 | ||
fa4cd53f PA |
1342 | /* Continuation args to be passed to the "until" command |
1343 | continuation. */ | |
1344 | struct until_next_continuation_args | |
1345 | { | |
1346 | /* The thread that was current when the command was executed. */ | |
1347 | int thread; | |
1348 | }; | |
1349 | ||
186c406b TT |
1350 | /* A continuation callback for until_next_command. */ |
1351 | ||
1352 | static void | |
fa4cd53f | 1353 | until_next_continuation (void *arg, int err) |
186c406b | 1354 | { |
fa4cd53f | 1355 | struct until_next_continuation_args *a = arg; |
186c406b | 1356 | |
fa4cd53f | 1357 | delete_longjmp_breakpoint (a->thread); |
186c406b TT |
1358 | } |
1359 | ||
c906108c SS |
1360 | /* Proceed until we reach a different source line with pc greater than |
1361 | our current one or exit the function. We skip calls in both cases. | |
1362 | ||
1363 | Note that eventually this command should probably be changed so | |
1364 | that only source lines are printed out when we hit the breakpoint | |
1365 | we set. This may involve changes to wait_for_inferior and the | |
1366 | proceed status code. */ | |
1367 | ||
c906108c | 1368 | static void |
fba45db2 | 1369 | until_next_command (int from_tty) |
c906108c SS |
1370 | { |
1371 | struct frame_info *frame; | |
1372 | CORE_ADDR pc; | |
1373 | struct symbol *func; | |
1374 | struct symtab_and_line sal; | |
4e1c45ea | 1375 | struct thread_info *tp = inferior_thread (); |
186c406b TT |
1376 | int thread = tp->num; |
1377 | struct cleanup *old_chain; | |
c5aa993b | 1378 | |
70509625 | 1379 | clear_proceed_status (0); |
edb3359d | 1380 | set_step_frame (); |
c906108c SS |
1381 | |
1382 | frame = get_current_frame (); | |
1383 | ||
1384 | /* Step until either exited from this function or greater | |
1385 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1386 | not). */ |
c906108c | 1387 | |
1c7819ef | 1388 | pc = get_frame_pc (frame); |
c906108c | 1389 | func = find_pc_function (pc); |
c5aa993b | 1390 | |
c906108c SS |
1391 | if (!func) |
1392 | { | |
7cbd4a93 | 1393 | struct bound_minimal_symbol msymbol = lookup_minimal_symbol_by_pc (pc); |
c5aa993b | 1394 | |
7cbd4a93 | 1395 | if (msymbol.minsym == NULL) |
8a3fe4f8 | 1396 | error (_("Execution is not within a known function.")); |
c5aa993b | 1397 | |
77e371c0 | 1398 | tp->control.step_range_start = BMSYMBOL_VALUE_ADDRESS (msymbol); |
7e09a223 YQ |
1399 | /* The upper-bound of step_range is exclusive. In order to make PC |
1400 | within the range, set the step_range_end with PC + 1. */ | |
1401 | tp->control.step_range_end = pc + 1; | |
c906108c SS |
1402 | } |
1403 | else | |
1404 | { | |
1405 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1406 | |
16c381f0 JK |
1407 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1408 | tp->control.step_range_end = sal.end; | |
c906108c | 1409 | } |
c1e36e3e | 1410 | tp->control.may_range_step = 1; |
c5aa993b | 1411 | |
16c381f0 | 1412 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1413 | |
af679fd0 | 1414 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1415 | |
186c406b TT |
1416 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1417 | old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1418 | ||
a493e3e2 | 1419 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
186c406b TT |
1420 | |
1421 | if (target_can_async_p () && is_running (inferior_ptid)) | |
1422 | { | |
fa4cd53f PA |
1423 | struct until_next_continuation_args *cont_args; |
1424 | ||
186c406b | 1425 | discard_cleanups (old_chain); |
fa4cd53f PA |
1426 | cont_args = XNEW (struct until_next_continuation_args); |
1427 | cont_args->thread = inferior_thread ()->num; | |
1428 | ||
1429 | add_continuation (tp, until_next_continuation, cont_args, xfree); | |
186c406b TT |
1430 | } |
1431 | else | |
1432 | do_cleanups (old_chain); | |
c906108c SS |
1433 | } |
1434 | ||
c5aa993b | 1435 | static void |
fba45db2 | 1436 | until_command (char *arg, int from_tty) |
c906108c | 1437 | { |
43ff13b4 JM |
1438 | int async_exec = 0; |
1439 | ||
4247603b | 1440 | ERROR_NO_INFERIOR; |
573cda03 | 1441 | ensure_not_tfind_mode (); |
4247603b PA |
1442 | ensure_valid_thread (); |
1443 | ensure_not_running (); | |
573cda03 | 1444 | |
1777feb0 | 1445 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1446 | if (arg != NULL) |
1447 | async_exec = strip_bg_char (&arg); | |
1448 | ||
8bc2fe48 | 1449 | prepare_execution_command (¤t_target, async_exec); |
43ff13b4 | 1450 | |
c906108c | 1451 | if (arg) |
ae66c1fc | 1452 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1453 | else |
1454 | until_next_command (from_tty); | |
1455 | } | |
ae66c1fc EZ |
1456 | |
1457 | static void | |
1458 | advance_command (char *arg, int from_tty) | |
1459 | { | |
1460 | int async_exec = 0; | |
1461 | ||
4247603b | 1462 | ERROR_NO_INFERIOR; |
573cda03 | 1463 | ensure_not_tfind_mode (); |
4247603b PA |
1464 | ensure_valid_thread (); |
1465 | ensure_not_running (); | |
573cda03 | 1466 | |
ae66c1fc | 1467 | if (arg == NULL) |
e2e0b3e5 | 1468 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1469 | |
1470 | /* Find out whether we must run in the background. */ | |
1471 | if (arg != NULL) | |
1472 | async_exec = strip_bg_char (&arg); | |
1473 | ||
8bc2fe48 | 1474 | prepare_execution_command (¤t_target, async_exec); |
ae66c1fc EZ |
1475 | |
1476 | until_break_command (arg, from_tty, 1); | |
1477 | } | |
c906108c | 1478 | \f |
cc72b2a2 KP |
1479 | /* Return the value of the result of a function at the end of a 'finish' |
1480 | command/BP. */ | |
f941662f | 1481 | |
cc72b2a2 | 1482 | struct value * |
6a3a010b | 1483 | get_return_value (struct value *function, struct type *value_type) |
11cf8741 | 1484 | { |
cc72b2a2 KP |
1485 | struct regcache *stop_regs = stop_registers; |
1486 | struct gdbarch *gdbarch; | |
44e5158b | 1487 | struct value *value; |
cc72b2a2 KP |
1488 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
1489 | ||
1490 | /* If stop_registers were not saved, use the current registers. */ | |
1491 | if (!stop_regs) | |
1492 | { | |
1493 | stop_regs = regcache_dup (get_current_regcache ()); | |
faab9922 | 1494 | make_cleanup_regcache_xfree (stop_regs); |
cc72b2a2 KP |
1495 | } |
1496 | ||
1497 | gdbarch = get_regcache_arch (stop_regs); | |
44e5158b | 1498 | |
181fc57c | 1499 | CHECK_TYPEDEF (value_type); |
44e5158b | 1500 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1501 | |
92ad9cd9 AC |
1502 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1503 | call, it's possible (with no help from the architecture vector) | |
1504 | to locate and return/print a "struct return" value. This is just | |
7a9dd1b2 | 1505 | a more complicated case of what is already being done in the |
92ad9cd9 AC |
1506 | inferior function call code. In fact, when inferior function |
1507 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1508 | |
6a3a010b | 1509 | switch (gdbarch_return_value (gdbarch, function, value_type, |
c055b101 | 1510 | NULL, NULL, NULL)) |
44e5158b | 1511 | { |
750eb019 AC |
1512 | case RETURN_VALUE_REGISTER_CONVENTION: |
1513 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1514 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1515 | value = allocate_value (value_type); |
6a3a010b | 1516 | gdbarch_return_value (gdbarch, function, value_type, stop_regs, |
990a07ab | 1517 | value_contents_raw (value), NULL); |
750eb019 AC |
1518 | break; |
1519 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1520 | value = NULL; | |
1521 | break; | |
1522 | default: | |
e2e0b3e5 | 1523 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1524 | } |
bb472c1e | 1525 | |
cc72b2a2 KP |
1526 | do_cleanups (cleanup); |
1527 | ||
1528 | return value; | |
1529 | } | |
1530 | ||
1531 | /* Print the result of a function at the end of a 'finish' command. */ | |
1532 | ||
1533 | static void | |
6a3a010b | 1534 | print_return_value (struct value *function, struct type *value_type) |
cc72b2a2 | 1535 | { |
6a3a010b | 1536 | struct value *value = get_return_value (function, value_type); |
cc72b2a2 KP |
1537 | struct ui_out *uiout = current_uiout; |
1538 | ||
31db7b6c MK |
1539 | if (value) |
1540 | { | |
79a45b7d | 1541 | struct value_print_options opts; |
f99d8bf4 PA |
1542 | struct ui_file *stb; |
1543 | struct cleanup *old_chain; | |
79a45b7d | 1544 | |
31db7b6c | 1545 | /* Print it. */ |
f99d8bf4 PA |
1546 | stb = mem_fileopen (); |
1547 | old_chain = make_cleanup_ui_file_delete (stb); | |
31db7b6c MK |
1548 | ui_out_text (uiout, "Value returned is "); |
1549 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1550 | record_latest_value (value)); | |
1551 | ui_out_text (uiout, " = "); | |
2a998fc0 | 1552 | get_no_prettyformat_print_options (&opts); |
f99d8bf4 | 1553 | value_print (value, stb, &opts); |
31db7b6c MK |
1554 | ui_out_field_stream (uiout, "return-value", stb); |
1555 | ui_out_text (uiout, "\n"); | |
1d751abe | 1556 | do_cleanups (old_chain); |
31db7b6c MK |
1557 | } |
1558 | else | |
1559 | { | |
1560 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1561 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1562 | ui_out_text (uiout, "."); | |
1563 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1564 | } |
11cf8741 JM |
1565 | } |
1566 | ||
43ff13b4 | 1567 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1568 | has stopped. In asynchronous mode, we wait for the target to stop |
1569 | in the call to poll or select in the event loop, so it is | |
1570 | impossible to do all the stuff as part of the finish_command | |
1571 | function itself. The only chance we have to complete this command | |
1572 | is in fetch_inferior_event, which is called by the event loop as | |
fa4cd53f | 1573 | soon as it detects that the target has stopped. */ |
f941662f | 1574 | |
bfec99b2 | 1575 | struct finish_command_continuation_args |
43ff13b4 | 1576 | { |
fa4cd53f PA |
1577 | /* The thread that as current when the command was executed. */ |
1578 | int thread; | |
43ff13b4 | 1579 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1580 | struct symbol *function; |
1581 | }; | |
c5aa993b | 1582 | |
bfec99b2 | 1583 | static void |
fa4cd53f | 1584 | finish_command_continuation (void *arg, int err) |
bfec99b2 PA |
1585 | { |
1586 | struct finish_command_continuation_args *a = arg; | |
347bddb7 | 1587 | |
fa4cd53f | 1588 | if (!err) |
43ff13b4 | 1589 | { |
fa4cd53f PA |
1590 | struct thread_info *tp = NULL; |
1591 | bpstat bs = NULL; | |
bfec99b2 | 1592 | |
fa4cd53f PA |
1593 | if (!ptid_equal (inferior_ptid, null_ptid) |
1594 | && target_has_execution | |
1595 | && is_stopped (inferior_ptid)) | |
1596 | { | |
1597 | tp = inferior_thread (); | |
1598 | bs = tp->control.stop_bpstat; | |
1599 | } | |
f5871ec0 | 1600 | |
fa4cd53f PA |
1601 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL |
1602 | && a->function != NULL) | |
40c549d6 | 1603 | { |
fa4cd53f PA |
1604 | struct type *value_type; |
1605 | ||
1606 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); | |
1607 | if (!value_type) | |
1608 | internal_error (__FILE__, __LINE__, | |
1609 | _("finish_command: function has no target type")); | |
40c549d6 | 1610 | |
fa4cd53f | 1611 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 | 1612 | { |
fa4cd53f | 1613 | volatile struct gdb_exception ex; |
6a3a010b | 1614 | struct value *func; |
fa4cd53f | 1615 | |
6a3a010b | 1616 | func = read_var_value (a->function, get_current_frame ()); |
fa4cd53f PA |
1617 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1618 | { | |
1619 | /* print_return_value can throw an exception in some | |
1620 | circumstances. We need to catch this so that we still | |
1621 | delete the breakpoint. */ | |
6a3a010b | 1622 | print_return_value (func, value_type); |
fa4cd53f PA |
1623 | } |
1624 | if (ex.reason < 0) | |
1625 | exception_print (gdb_stdout, ex); | |
40c549d6 | 1626 | } |
40c549d6 | 1627 | } |
fa4cd53f PA |
1628 | |
1629 | /* We suppress normal call of normal_stop observer and do it | |
1630 | here so that the *stopped notification includes the return | |
1631 | value. */ | |
1632 | if (bs != NULL && tp->control.proceed_to_finish) | |
1633 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
43ff13b4 | 1634 | } |
f941662f | 1635 | |
bfec99b2 | 1636 | delete_breakpoint (a->breakpoint); |
fa4cd53f | 1637 | delete_longjmp_breakpoint (a->thread); |
43ff13b4 JM |
1638 | } |
1639 | ||
604ead4a PA |
1640 | static void |
1641 | finish_command_continuation_free_arg (void *arg) | |
1642 | { | |
604ead4a PA |
1643 | xfree (arg); |
1644 | } | |
1645 | ||
b2175913 MS |
1646 | /* finish_backward -- helper function for finish_command. */ |
1647 | ||
1648 | static void | |
1649 | finish_backward (struct symbol *function) | |
1650 | { | |
1651 | struct symtab_and_line sal; | |
1652 | struct thread_info *tp = inferior_thread (); | |
1c7819ef | 1653 | CORE_ADDR pc; |
b2175913 | 1654 | CORE_ADDR func_addr; |
b2175913 | 1655 | |
1c7819ef PA |
1656 | pc = get_frame_pc (get_current_frame ()); |
1657 | ||
1658 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
1f267ae3 | 1659 | error (_("Cannot find bounds of current function")); |
b2175913 MS |
1660 | |
1661 | sal = find_pc_line (func_addr, 0); | |
1662 | ||
9da8c2a0 | 1663 | tp->control.proceed_to_finish = 1; |
b2175913 MS |
1664 | /* Special case: if we're sitting at the function entry point, |
1665 | then all we need to do is take a reverse singlestep. We | |
1666 | don't need to set a breakpoint, and indeed it would do us | |
1667 | no good to do so. | |
1668 | ||
1669 | Note that this can only happen at frame #0, since there's | |
1670 | no way that a function up the stack can have a return address | |
1671 | that's equal to its entry point. */ | |
1672 | ||
1c7819ef | 1673 | if (sal.pc != pc) |
b2175913 | 1674 | { |
a6d9a66e UW |
1675 | struct frame_info *frame = get_selected_frame (NULL); |
1676 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
9da8c2a0 PA |
1677 | struct symtab_and_line sr_sal; |
1678 | ||
1679 | /* Set a step-resume at the function's entry point. Once that's | |
1680 | hit, we'll do one more step backwards. */ | |
1681 | init_sal (&sr_sal); | |
1682 | sr_sal.pc = sal.pc; | |
1683 | sr_sal.pspace = get_frame_program_space (frame); | |
1684 | insert_step_resume_breakpoint_at_sal (gdbarch, | |
1685 | sr_sal, null_frame_id); | |
a6d9a66e | 1686 | |
a493e3e2 | 1687 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1688 | } |
1689 | else | |
b2175913 | 1690 | { |
9da8c2a0 PA |
1691 | /* We're almost there -- we just need to back up by one more |
1692 | single-step. */ | |
16c381f0 | 1693 | tp->control.step_range_start = tp->control.step_range_end = 1; |
a493e3e2 | 1694 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
b2175913 | 1695 | } |
b2175913 MS |
1696 | } |
1697 | ||
1698 | /* finish_forward -- helper function for finish_command. */ | |
1699 | ||
1700 | static void | |
1701 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1702 | { | |
def166f6 | 1703 | struct frame_id frame_id = get_frame_id (frame); |
a6d9a66e | 1704 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1705 | struct symtab_and_line sal; |
1706 | struct thread_info *tp = inferior_thread (); | |
1707 | struct breakpoint *breakpoint; | |
1708 | struct cleanup *old_chain; | |
1709 | struct finish_command_continuation_args *cargs; | |
186c406b | 1710 | int thread = tp->num; |
b2175913 MS |
1711 | |
1712 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1713 | sal.pc = get_frame_pc (frame); | |
1714 | ||
a6d9a66e UW |
1715 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1716 | get_stack_frame_id (frame), | |
b2175913 MS |
1717 | bp_finish); |
1718 | ||
c70a6932 JK |
1719 | /* set_momentary_breakpoint invalidates FRAME. */ |
1720 | frame = NULL; | |
1721 | ||
b2175913 MS |
1722 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
1723 | ||
def166f6 | 1724 | set_longjmp_breakpoint (tp, frame_id); |
186c406b TT |
1725 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
1726 | ||
16c381f0 JK |
1727 | /* We want stop_registers, please... */ |
1728 | tp->control.proceed_to_finish = 1; | |
b2175913 MS |
1729 | cargs = xmalloc (sizeof (*cargs)); |
1730 | ||
fa4cd53f | 1731 | cargs->thread = thread; |
b2175913 MS |
1732 | cargs->breakpoint = breakpoint; |
1733 | cargs->function = function; | |
1734 | add_continuation (tp, finish_command_continuation, cargs, | |
1735 | finish_command_continuation_free_arg); | |
a493e3e2 | 1736 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1737 | |
1738 | discard_cleanups (old_chain); | |
1739 | if (!target_can_async_p ()) | |
fa4cd53f | 1740 | do_all_continuations (0); |
b2175913 MS |
1741 | } |
1742 | ||
f941662f MK |
1743 | /* "finish": Set a temporary breakpoint at the place the selected |
1744 | frame will return to, then continue. */ | |
c906108c SS |
1745 | |
1746 | static void | |
fba45db2 | 1747 | finish_command (char *arg, int from_tty) |
c906108c | 1748 | { |
52f0bd74 AC |
1749 | struct frame_info *frame; |
1750 | struct symbol *function; | |
43ff13b4 JM |
1751 | |
1752 | int async_exec = 0; | |
1753 | ||
4247603b | 1754 | ERROR_NO_INFERIOR; |
573cda03 | 1755 | ensure_not_tfind_mode (); |
4247603b PA |
1756 | ensure_valid_thread (); |
1757 | ensure_not_running (); | |
573cda03 | 1758 | |
f941662f | 1759 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1760 | if (arg != NULL) |
1761 | async_exec = strip_bg_char (&arg); | |
1762 | ||
8bc2fe48 | 1763 | prepare_execution_command (¤t_target, async_exec); |
c906108c SS |
1764 | |
1765 | if (arg) | |
8a3fe4f8 | 1766 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1767 | |
206415a3 | 1768 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1769 | if (frame == 0) |
8a3fe4f8 | 1770 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c | 1771 | |
70509625 | 1772 | clear_proceed_status (0); |
c906108c | 1773 | |
edb3359d DJ |
1774 | /* Finishing from an inline frame is completely different. We don't |
1775 | try to show the "return value" - no way to locate it. So we do | |
1776 | not need a completion. */ | |
1777 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1778 | == INLINE_FRAME) | |
1779 | { | |
1780 | /* Claim we are stepping in the calling frame. An empty step | |
1781 | range means that we will stop once we aren't in a function | |
1782 | called by that frame. We don't use the magic "1" value for | |
1783 | step_range_end, because then infrun will think this is nexti, | |
1784 | and not step over the rest of this inlined function call. */ | |
1785 | struct thread_info *tp = inferior_thread (); | |
1786 | struct symtab_and_line empty_sal; | |
abbb1732 | 1787 | |
edb3359d DJ |
1788 | init_sal (&empty_sal); |
1789 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1790 | tp->control.step_range_start = get_frame_pc (frame); |
1791 | tp->control.step_range_end = tp->control.step_range_start; | |
1792 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1793 | |
1794 | /* Print info on the selected frame, including level number but not | |
1795 | source. */ | |
1796 | if (from_tty) | |
1797 | { | |
1798 | printf_filtered (_("Run till exit from ")); | |
08d72866 | 1799 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); |
edb3359d DJ |
1800 | } |
1801 | ||
a493e3e2 | 1802 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
edb3359d DJ |
1803 | return; |
1804 | } | |
1805 | ||
1ab3b62c JK |
1806 | /* Ignore TAILCALL_FRAME type frames, they were executed already before |
1807 | entering THISFRAME. */ | |
1808 | while (get_frame_type (frame) == TAILCALL_FRAME) | |
1809 | frame = get_prev_frame (frame); | |
1810 | ||
c906108c SS |
1811 | /* Find the function we will return from. */ |
1812 | ||
206415a3 | 1813 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1814 | |
f941662f MK |
1815 | /* Print info on the selected frame, including level number but not |
1816 | source. */ | |
c906108c SS |
1817 | if (from_tty) |
1818 | { | |
b2175913 MS |
1819 | if (execution_direction == EXEC_REVERSE) |
1820 | printf_filtered (_("Run back to call of ")); | |
1821 | else | |
1822 | printf_filtered (_("Run till exit from ")); | |
1823 | ||
08d72866 | 1824 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); |
c906108c SS |
1825 | } |
1826 | ||
b2175913 MS |
1827 | if (execution_direction == EXEC_REVERSE) |
1828 | finish_backward (function); | |
1829 | else | |
1830 | finish_forward (function, frame); | |
c906108c SS |
1831 | } |
1832 | \f | |
f941662f | 1833 | |
c906108c | 1834 | static void |
fba45db2 | 1835 | program_info (char *args, int from_tty) |
c906108c | 1836 | { |
347bddb7 PA |
1837 | bpstat bs; |
1838 | int num, stat; | |
1839 | struct thread_info *tp; | |
1840 | ptid_t ptid; | |
c5aa993b | 1841 | |
c906108c SS |
1842 | if (!target_has_execution) |
1843 | { | |
a3f17187 | 1844 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1845 | return; |
1846 | } | |
1847 | ||
347bddb7 PA |
1848 | if (non_stop) |
1849 | ptid = inferior_ptid; | |
1850 | else | |
1851 | { | |
1852 | struct target_waitstatus ws; | |
abbb1732 | 1853 | |
347bddb7 PA |
1854 | get_last_target_status (&ptid, &ws); |
1855 | } | |
1856 | ||
1857 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1858 | error (_("Invalid selected thread.")); | |
1859 | else if (is_running (ptid)) | |
1860 | error (_("Selected thread is running.")); | |
1861 | ||
e09875d4 | 1862 | tp = find_thread_ptid (ptid); |
16c381f0 | 1863 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1864 | stat = bpstat_num (&bs, &num); |
1865 | ||
c906108c | 1866 | target_files_info (); |
5af949e3 | 1867 | printf_filtered (_("Program stopped at %s.\n"), |
f5656ead | 1868 | paddress (target_gdbarch (), stop_pc)); |
16c381f0 | 1869 | if (tp->control.stop_step) |
a3f17187 | 1870 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1871 | else if (stat != 0) |
c906108c SS |
1872 | { |
1873 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1874 | isn't as strange as it seems. */ |
8671a17b | 1875 | while (stat != 0) |
c906108c | 1876 | { |
8671a17b | 1877 | if (stat < 0) |
c906108c | 1878 | { |
3e43a32a MS |
1879 | printf_filtered (_("It stopped at a breakpoint " |
1880 | "that has since been deleted.\n")); | |
c906108c SS |
1881 | } |
1882 | else | |
a3f17187 | 1883 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1884 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1885 | } |
1886 | } | |
a493e3e2 | 1887 | else if (tp->suspend.stop_signal != GDB_SIGNAL_0) |
c906108c | 1888 | { |
a3f17187 | 1889 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2ea28649 PA |
1890 | gdb_signal_to_name (tp->suspend.stop_signal), |
1891 | gdb_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1892 | } |
1893 | ||
0d41ba00 | 1894 | if (from_tty) |
c906108c | 1895 | { |
3e43a32a MS |
1896 | printf_filtered (_("Type \"info stack\" or \"info " |
1897 | "registers\" for more information.\n")); | |
c906108c SS |
1898 | } |
1899 | } | |
1900 | \f | |
1901 | static void | |
fba45db2 | 1902 | environment_info (char *var, int from_tty) |
c906108c SS |
1903 | { |
1904 | if (var) | |
1905 | { | |
3f81c18a | 1906 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1907 | |
c906108c SS |
1908 | if (val) |
1909 | { | |
1910 | puts_filtered (var); | |
1911 | puts_filtered (" = "); | |
1912 | puts_filtered (val); | |
1913 | puts_filtered ("\n"); | |
1914 | } | |
1915 | else | |
1916 | { | |
1917 | puts_filtered ("Environment variable \""); | |
1918 | puts_filtered (var); | |
1919 | puts_filtered ("\" not defined.\n"); | |
1920 | } | |
1921 | } | |
1922 | else | |
1923 | { | |
3f81c18a | 1924 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1925 | |
c906108c SS |
1926 | while (*vector) |
1927 | { | |
1928 | puts_filtered (*vector++); | |
1929 | puts_filtered ("\n"); | |
1930 | } | |
1931 | } | |
1932 | } | |
1933 | ||
1934 | static void | |
fba45db2 | 1935 | set_environment_command (char *arg, int from_tty) |
c906108c | 1936 | { |
52f0bd74 | 1937 | char *p, *val, *var; |
c906108c SS |
1938 | int nullset = 0; |
1939 | ||
1940 | if (arg == 0) | |
e2e0b3e5 | 1941 | error_no_arg (_("environment variable and value")); |
c906108c | 1942 | |
1777feb0 | 1943 | /* Find seperation between variable name and value. */ |
c906108c SS |
1944 | p = (char *) strchr (arg, '='); |
1945 | val = (char *) strchr (arg, ' '); | |
1946 | ||
1947 | if (p != 0 && val != 0) | |
1948 | { | |
1949 | /* We have both a space and an equals. If the space is before the | |
c5aa993b | 1950 | equals, walk forward over the spaces til we see a nonspace |
1777feb0 | 1951 | (possibly the equals). */ |
c906108c SS |
1952 | if (p > val) |
1953 | while (*val == ' ') | |
1954 | val++; | |
1955 | ||
1956 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1957 | take the char following the spaces. */ |
c906108c SS |
1958 | if (p > val) |
1959 | p = val - 1; | |
1960 | } | |
1961 | else if (val != 0 && p == 0) | |
1962 | p = val; | |
1963 | ||
1964 | if (p == arg) | |
e2e0b3e5 | 1965 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1966 | |
1967 | if (p == 0 || p[1] == 0) | |
1968 | { | |
1969 | nullset = 1; | |
1970 | if (p == 0) | |
1777feb0 | 1971 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
1972 | } |
1973 | else | |
1974 | { | |
1777feb0 | 1975 | /* Not setting variable value to null. */ |
c906108c SS |
1976 | val = p + 1; |
1977 | while (*val == ' ' || *val == '\t') | |
1978 | val++; | |
1979 | } | |
1980 | ||
c5aa993b JM |
1981 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1982 | p--; | |
c906108c SS |
1983 | |
1984 | var = savestring (arg, p - arg); | |
1985 | if (nullset) | |
1986 | { | |
3e43a32a MS |
1987 | printf_filtered (_("Setting environment variable " |
1988 | "\"%s\" to null value.\n"), | |
a3f17187 | 1989 | var); |
3f81c18a | 1990 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
1991 | } |
1992 | else | |
3f81c18a | 1993 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 1994 | xfree (var); |
c906108c SS |
1995 | } |
1996 | ||
1997 | static void | |
fba45db2 | 1998 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1999 | { |
2000 | if (var == 0) | |
2001 | { | |
2002 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 2003 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 2004 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 2005 | { |
3f81c18a VP |
2006 | free_environ (current_inferior ()->environment); |
2007 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
2008 | } |
2009 | } | |
2010 | else | |
3f81c18a | 2011 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
2012 | } |
2013 | ||
1777feb0 | 2014 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
2015 | |
2016 | static const char path_var_name[] = "PATH"; | |
2017 | ||
c906108c | 2018 | static void |
fba45db2 | 2019 | path_info (char *args, int from_tty) |
c906108c SS |
2020 | { |
2021 | puts_filtered ("Executable and object file path: "); | |
3e43a32a MS |
2022 | puts_filtered (get_in_environ (current_inferior ()->environment, |
2023 | path_var_name)); | |
c906108c SS |
2024 | puts_filtered ("\n"); |
2025 | } | |
2026 | ||
2027 | /* Add zero or more directories to the front of the execution path. */ | |
2028 | ||
2029 | static void | |
fba45db2 | 2030 | path_command (char *dirname, int from_tty) |
c906108c SS |
2031 | { |
2032 | char *exec_path; | |
2033 | char *env; | |
abbb1732 | 2034 | |
c906108c | 2035 | dont_repeat (); |
3f81c18a | 2036 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
1777feb0 | 2037 | /* Can be null if path is not set. */ |
c906108c SS |
2038 | if (!env) |
2039 | env = ""; | |
4fcf66da | 2040 | exec_path = xstrdup (env); |
c906108c | 2041 | mod_path (dirname, &exec_path); |
3f81c18a | 2042 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 2043 | xfree (exec_path); |
c906108c | 2044 | if (from_tty) |
c5aa993b | 2045 | path_info ((char *) NULL, from_tty); |
c906108c | 2046 | } |
c906108c | 2047 | \f |
c5aa993b | 2048 | |
1292279a PA |
2049 | /* Print out the register NAME with value VAL, to FILE, in the default |
2050 | fashion. */ | |
2051 | ||
2052 | static void | |
2053 | default_print_one_register_info (struct ui_file *file, | |
2054 | const char *name, | |
2055 | struct value *val) | |
2056 | { | |
2057 | struct type *regtype = value_type (val); | |
f69d9aef | 2058 | int print_raw_format; |
1292279a PA |
2059 | |
2060 | fputs_filtered (name, file); | |
2061 | print_spaces_filtered (15 - strlen (name), file); | |
2062 | ||
f69d9aef AB |
2063 | print_raw_format = (value_entirely_available (val) |
2064 | && !value_optimized_out (val)); | |
1292279a PA |
2065 | |
2066 | /* If virtual format is floating, print it that way, and in raw | |
2067 | hex. */ | |
2068 | if (TYPE_CODE (regtype) == TYPE_CODE_FLT | |
2069 | || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT) | |
2070 | { | |
2071 | int j; | |
2072 | struct value_print_options opts; | |
2073 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
2074 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (regtype)); | |
2075 | ||
2076 | get_user_print_options (&opts); | |
2077 | opts.deref_ref = 1; | |
2078 | ||
2079 | val_print (regtype, | |
2080 | value_contents_for_printing (val), | |
2081 | value_embedded_offset (val), 0, | |
2082 | file, 0, val, &opts, current_language); | |
2083 | ||
f69d9aef AB |
2084 | if (print_raw_format) |
2085 | { | |
2086 | fprintf_filtered (file, "\t(raw "); | |
2087 | print_hex_chars (file, valaddr, TYPE_LENGTH (regtype), byte_order); | |
2088 | fprintf_filtered (file, ")"); | |
2089 | } | |
1292279a PA |
2090 | } |
2091 | else | |
2092 | { | |
2093 | struct value_print_options opts; | |
2094 | ||
2095 | /* Print the register in hex. */ | |
2096 | get_formatted_print_options (&opts, 'x'); | |
2097 | opts.deref_ref = 1; | |
2098 | val_print (regtype, | |
2099 | value_contents_for_printing (val), | |
2100 | value_embedded_offset (val), 0, | |
2101 | file, 0, val, &opts, current_language); | |
2102 | /* If not a vector register, print it also according to its | |
2103 | natural format. */ | |
f69d9aef | 2104 | if (print_raw_format && TYPE_VECTOR (regtype) == 0) |
1292279a PA |
2105 | { |
2106 | get_user_print_options (&opts); | |
2107 | opts.deref_ref = 1; | |
2108 | fprintf_filtered (file, "\t"); | |
2109 | val_print (regtype, | |
2110 | value_contents_for_printing (val), | |
2111 | value_embedded_offset (val), 0, | |
2112 | file, 0, val, &opts, current_language); | |
2113 | } | |
2114 | } | |
2115 | ||
2116 | fprintf_filtered (file, "\n"); | |
2117 | } | |
2118 | ||
1777feb0 | 2119 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
2120 | registers (print_all == 1) or all non-float and non-vector |
2121 | registers (print_all == 0). | |
c906108c SS |
2122 | |
2123 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
2124 | register(s) one per line is good enough. If a different format is |
2125 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
2126 | regs), or there is an existing convention for showing all the | |
2127 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
2128 | provide that format. */ | |
c906108c | 2129 | |
666e11c5 | 2130 | void |
0ab7a791 AC |
2131 | default_print_registers_info (struct gdbarch *gdbarch, |
2132 | struct ui_file *file, | |
2133 | struct frame_info *frame, | |
2134 | int regnum, int print_all) | |
c906108c | 2135 | { |
0ab7a791 | 2136 | int i; |
a4bd449d UW |
2137 | const int numregs = gdbarch_num_regs (gdbarch) |
2138 | + gdbarch_num_pseudo_regs (gdbarch); | |
0ab7a791 | 2139 | |
c906108c SS |
2140 | for (i = 0; i < numregs; i++) |
2141 | { | |
4782dc19 AC |
2142 | /* Decide between printing all regs, non-float / vector regs, or |
2143 | specific reg. */ | |
c5aa993b JM |
2144 | if (regnum == -1) |
2145 | { | |
f9418c0f | 2146 | if (print_all) |
4782dc19 | 2147 | { |
f9418c0f | 2148 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 2149 | continue; |
f9418c0f AC |
2150 | } |
2151 | else | |
2152 | { | |
2153 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
2154 | continue; |
2155 | } | |
c5aa993b JM |
2156 | } |
2157 | else | |
2158 | { | |
2159 | if (i != regnum) | |
2160 | continue; | |
2161 | } | |
c906108c SS |
2162 | |
2163 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 2164 | processor, so don't display anything. */ |
a4bd449d UW |
2165 | if (gdbarch_register_name (gdbarch, i) == NULL |
2166 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
2167 | continue; |
2168 | ||
1292279a PA |
2169 | default_print_one_register_info (file, |
2170 | gdbarch_register_name (gdbarch, i), | |
901461f8 | 2171 | value_of_register (i, frame)); |
c906108c SS |
2172 | } |
2173 | } | |
c906108c | 2174 | |
c906108c | 2175 | void |
fba45db2 | 2176 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2177 | { |
206415a3 | 2178 | struct frame_info *frame; |
a4bd449d | 2179 | struct gdbarch *gdbarch; |
c906108c SS |
2180 | |
2181 | if (!target_has_registers) | |
8a3fe4f8 | 2182 | error (_("The program has no registers now.")); |
206415a3 | 2183 | frame = get_selected_frame (NULL); |
a4bd449d | 2184 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2185 | |
2186 | if (!addr_exp) | |
2187 | { | |
a4bd449d | 2188 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2189 | frame, -1, fpregs); |
c906108c SS |
2190 | return; |
2191 | } | |
2192 | ||
f9418c0f | 2193 | while (*addr_exp != '\0') |
c5aa993b | 2194 | { |
f9418c0f AC |
2195 | char *start; |
2196 | const char *end; | |
c906108c | 2197 | |
529480d0 KS |
2198 | /* Skip leading white space. */ |
2199 | addr_exp = skip_spaces (addr_exp); | |
c906108c | 2200 | |
f9418c0f AC |
2201 | /* Discard any leading ``$''. Check that there is something |
2202 | resembling a register following it. */ | |
2203 | if (addr_exp[0] == '$') | |
2204 | addr_exp++; | |
2205 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2206 | error (_("Missing register name")); |
c906108c | 2207 | |
f9418c0f AC |
2208 | /* Find the start/end of this register name/num/group. */ |
2209 | start = addr_exp; | |
2210 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2211 | addr_exp++; | |
2212 | end = addr_exp; | |
ad842144 | 2213 | |
f9418c0f AC |
2214 | /* Figure out what we've found and display it. */ |
2215 | ||
2216 | /* A register name? */ | |
2217 | { | |
029a67e4 | 2218 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2219 | |
f9418c0f AC |
2220 | if (regnum >= 0) |
2221 | { | |
ad842144 MR |
2222 | /* User registers lie completely outside of the range of |
2223 | normal registers. Catch them early so that the target | |
2224 | never sees them. */ | |
2225 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2226 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2227 | { | |
1292279a PA |
2228 | struct value *regval = value_of_user_reg (regnum, frame); |
2229 | const char *regname = user_reg_map_regnum_to_name (gdbarch, | |
2230 | regnum); | |
2231 | ||
2232 | /* Print in the same fashion | |
2233 | gdbarch_print_registers_info's default | |
2234 | implementation prints. */ | |
2235 | default_print_one_register_info (gdb_stdout, | |
2236 | regname, | |
2237 | regval); | |
ad842144 MR |
2238 | } |
2239 | else | |
2240 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2241 | frame, regnum, fpregs); | |
f9418c0f AC |
2242 | continue; |
2243 | } | |
2244 | } | |
ad842144 | 2245 | |
f9418c0f AC |
2246 | /* A register group? */ |
2247 | { | |
6c7d17ba | 2248 | struct reggroup *group; |
abbb1732 | 2249 | |
a4bd449d | 2250 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2251 | group != NULL; |
a4bd449d | 2252 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2253 | { |
2254 | /* Don't bother with a length check. Should the user | |
2255 | enter a short register group name, go with the first | |
2256 | group that matches. */ | |
6c7d17ba | 2257 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2258 | break; |
2259 | } | |
6c7d17ba | 2260 | if (group != NULL) |
f9418c0f AC |
2261 | { |
2262 | int regnum; | |
abbb1732 | 2263 | |
f57d151a | 2264 | for (regnum = 0; |
a4bd449d UW |
2265 | regnum < gdbarch_num_regs (gdbarch) |
2266 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2267 | regnum++) |
f9418c0f | 2268 | { |
a4bd449d UW |
2269 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2270 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2271 | gdb_stdout, frame, |
f9418c0f AC |
2272 | regnum, fpregs); |
2273 | } | |
2274 | continue; | |
2275 | } | |
2276 | } | |
c906108c | 2277 | |
f9418c0f | 2278 | /* Nothing matched. */ |
8a3fe4f8 | 2279 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2280 | } |
c906108c SS |
2281 | } |
2282 | ||
1dd5fedc | 2283 | static void |
fba45db2 | 2284 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2285 | { |
2286 | registers_info (addr_exp, 1); | |
2287 | } | |
2288 | ||
a58dd373 | 2289 | static void |
fba45db2 | 2290 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2291 | { |
2292 | registers_info (addr_exp, 0); | |
2293 | } | |
e76f1f2e AC |
2294 | |
2295 | static void | |
d80b854b | 2296 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2297 | struct frame_info *frame, const char *args) |
2298 | { | |
d80b854b UW |
2299 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2300 | ||
e76f1f2e AC |
2301 | if (gdbarch_print_vector_info_p (gdbarch)) |
2302 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2303 | else | |
2304 | { | |
2305 | int regnum; | |
2306 | int printed_something = 0; | |
ab4327e0 | 2307 | |
f57d151a | 2308 | for (regnum = 0; |
a4bd449d UW |
2309 | regnum < gdbarch_num_regs (gdbarch) |
2310 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2311 | regnum++) |
e76f1f2e | 2312 | { |
f9418c0f | 2313 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2314 | { |
2315 | printed_something = 1; | |
e76f1f2e | 2316 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2317 | } |
2318 | } | |
2319 | if (!printed_something) | |
2320 | fprintf_filtered (file, "No vector information\n"); | |
2321 | } | |
2322 | } | |
2323 | ||
2324 | static void | |
2325 | vector_info (char *args, int from_tty) | |
2326 | { | |
206415a3 DJ |
2327 | if (!target_has_registers) |
2328 | error (_("The program has no registers now.")); | |
2329 | ||
d80b854b | 2330 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2331 | } |
c906108c | 2332 | \f |
5fd62852 PA |
2333 | /* Kill the inferior process. Make us have no inferior. */ |
2334 | ||
2335 | static void | |
2336 | kill_command (char *arg, int from_tty) | |
2337 | { | |
2338 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2339 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2340 | some targets don't have processes! */ |
5fd62852 PA |
2341 | |
2342 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2343 | error (_("The program is not being run.")); | |
2344 | if (!query (_("Kill the program being debugged? "))) | |
2345 | error (_("Not confirmed.")); | |
2346 | target_kill (); | |
2347 | ||
c35b1492 PA |
2348 | /* If we still have other inferiors to debug, then don't mess with |
2349 | with their threads. */ | |
2350 | if (!have_inferiors ()) | |
5fd62852 | 2351 | { |
1777feb0 | 2352 | init_thread_list (); /* Destroy thread info. */ |
5fd62852 PA |
2353 | |
2354 | /* Killing off the inferior can leave us with a core file. If | |
2355 | so, print the state we are left in. */ | |
2356 | if (target_has_stack) | |
2357 | { | |
2358 | printf_filtered (_("In %s,\n"), target_longname); | |
08d72866 | 2359 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
5fd62852 PA |
2360 | } |
2361 | } | |
2362 | bfd_cache_close_all (); | |
2363 | } | |
c5aa993b | 2364 | |
74531fed PA |
2365 | /* Used in `attach&' command. ARG is a point to an integer |
2366 | representing a process id. Proceed threads of this process iff | |
2367 | they stopped due to debugger request, and when they did, they | |
a493e3e2 | 2368 | reported a clean stop (GDB_SIGNAL_0). Do not proceed threads |
74531fed PA |
2369 | that have been explicitly been told to stop. */ |
2370 | ||
2371 | static int | |
2372 | proceed_after_attach_callback (struct thread_info *thread, | |
2373 | void *arg) | |
2374 | { | |
2375 | int pid = * (int *) arg; | |
2376 | ||
2377 | if (ptid_get_pid (thread->ptid) == pid | |
2378 | && !is_exited (thread->ptid) | |
2379 | && !is_executing (thread->ptid) | |
2380 | && !thread->stop_requested | |
a493e3e2 | 2381 | && thread->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed PA |
2382 | { |
2383 | switch_to_thread (thread->ptid); | |
70509625 | 2384 | clear_proceed_status (0); |
a493e3e2 | 2385 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2386 | } |
2387 | ||
2388 | return 0; | |
2389 | } | |
2390 | ||
2391 | static void | |
2392 | proceed_after_attach (int pid) | |
2393 | { | |
2394 | /* Don't error out if the current thread is running, because | |
2395 | there may be other stopped threads. */ | |
2396 | struct cleanup *old_chain; | |
2397 | ||
2398 | /* Backup current thread and selected frame. */ | |
2399 | old_chain = make_cleanup_restore_current_thread (); | |
2400 | ||
2401 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2402 | ||
2403 | /* Restore selected ptid. */ | |
2404 | do_cleanups (old_chain); | |
2405 | } | |
2406 | ||
1777feb0 | 2407 | /* attach_command -- |
c906108c SS |
2408 | takes a program started up outside of gdb and ``attaches'' to it. |
2409 | This stops it cold in its tracks and allows us to start debugging it. | |
2410 | and wait for the trace-trap that results from attaching. */ | |
2411 | ||
9356cf8d PA |
2412 | static void |
2413 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2414 | { | |
2415 | char *exec_file; | |
2416 | char *full_exec_path = NULL; | |
d6b48e9c | 2417 | struct inferior *inferior; |
9356cf8d | 2418 | |
d6b48e9c | 2419 | inferior = current_inferior (); |
16c381f0 | 2420 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2421 | |
2422 | /* If no exec file is yet known, try to determine it from the | |
2423 | process itself. */ | |
2424 | exec_file = (char *) get_exec_file (0); | |
2425 | if (!exec_file) | |
2426 | { | |
dfd4cc63 | 2427 | exec_file = target_pid_to_exec_file (ptid_get_pid (inferior_ptid)); |
9356cf8d PA |
2428 | if (exec_file) |
2429 | { | |
2430 | /* It's possible we don't have a full path, but rather just a | |
2431 | filename. Some targets, such as HP-UX, don't provide the | |
2432 | full path, sigh. | |
2433 | ||
2434 | Attempt to qualify the filename against the source path. | |
2435 | (If that fails, we'll just fall back on the original | |
1777feb0 MS |
2436 | filename. Not much more we can do...) */ |
2437 | ||
9356cf8d | 2438 | if (!source_full_path_of (exec_file, &full_exec_path)) |
1b36a34b | 2439 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2440 | |
2441 | exec_file_attach (full_exec_path, from_tty); | |
2442 | symbol_file_add_main (full_exec_path, from_tty); | |
2443 | } | |
2444 | } | |
2445 | else | |
2446 | { | |
2447 | reopen_exec_file (); | |
2448 | reread_symbols (); | |
2449 | } | |
2450 | ||
2451 | /* Take any necessary post-attaching actions for this platform. */ | |
dfd4cc63 | 2452 | target_post_attach (ptid_get_pid (inferior_ptid)); |
9356cf8d PA |
2453 | |
2454 | post_create_inferior (¤t_target, from_tty); | |
2455 | ||
9356cf8d | 2456 | if (async_exec) |
74531fed PA |
2457 | { |
2458 | /* The user requested an `attach&', so be sure to leave threads | |
2459 | that didn't get a signal running. */ | |
2460 | ||
2461 | /* Immediatelly resume all suspended threads of this inferior, | |
2462 | and this inferior only. This should have no effect on | |
2463 | already running threads. If a thread has been stopped with a | |
2464 | signal, leave it be. */ | |
2465 | if (non_stop) | |
2466 | proceed_after_attach (inferior->pid); | |
2467 | else | |
2468 | { | |
a493e3e2 | 2469 | if (inferior_thread ()->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed | 2470 | { |
70509625 | 2471 | clear_proceed_status (0); |
a493e3e2 | 2472 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2473 | } |
2474 | } | |
2475 | } | |
9356cf8d PA |
2476 | else |
2477 | { | |
74531fed PA |
2478 | /* The user requested a plain `attach', so be sure to leave |
2479 | the inferior stopped. */ | |
2480 | ||
9356cf8d PA |
2481 | if (target_can_async_p ()) |
2482 | async_enable_stdin (); | |
74531fed PA |
2483 | |
2484 | /* At least the current thread is already stopped. */ | |
2485 | ||
2486 | /* In all-stop, by definition, all threads have to be already | |
2487 | stopped at this point. In non-stop, however, although the | |
2488 | selected thread is stopped, others may still be executing. | |
2489 | Be sure to explicitly stop all threads of the process. This | |
2490 | should have no effect on already stopped threads. */ | |
2491 | if (non_stop) | |
2492 | target_stop (pid_to_ptid (inferior->pid)); | |
2493 | ||
2494 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2495 | normal_stop (); |
2496 | if (deprecated_attach_hook) | |
2497 | deprecated_attach_hook (); | |
2498 | } | |
2499 | } | |
2500 | ||
bfec99b2 | 2501 | struct attach_command_continuation_args |
9356cf8d PA |
2502 | { |
2503 | char *args; | |
2504 | int from_tty; | |
2505 | int async_exec; | |
bfec99b2 | 2506 | }; |
9356cf8d | 2507 | |
bfec99b2 | 2508 | static void |
fa4cd53f | 2509 | attach_command_continuation (void *args, int err) |
bfec99b2 PA |
2510 | { |
2511 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2512 | |
fa4cd53f PA |
2513 | if (err) |
2514 | return; | |
2515 | ||
bfec99b2 | 2516 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2517 | } |
2518 | ||
604ead4a PA |
2519 | static void |
2520 | attach_command_continuation_free_args (void *args) | |
2521 | { | |
2522 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2523 | |
604ead4a PA |
2524 | xfree (a->args); |
2525 | xfree (a); | |
2526 | } | |
2527 | ||
c906108c | 2528 | void |
fba45db2 | 2529 | attach_command (char *args, int from_tty) |
c906108c | 2530 | { |
9356cf8d | 2531 | int async_exec = 0; |
b3ccfe11 | 2532 | struct target_ops *attach_target; |
c906108c | 2533 | |
c5aa993b | 2534 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2535 | |
f5656ead | 2536 | if (gdbarch_has_global_solist (target_gdbarch ())) |
2567c7d9 PA |
2537 | /* Don't complain if all processes share the same symbol |
2538 | space. */ | |
8a305172 PA |
2539 | ; |
2540 | else if (target_has_execution) | |
c906108c | 2541 | { |
9e2f0ad4 | 2542 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2543 | target_kill (); |
2544 | else | |
8a3fe4f8 | 2545 | error (_("Not killed.")); |
c906108c SS |
2546 | } |
2547 | ||
fd79ecee DJ |
2548 | /* Clean up any leftovers from other runs. Some other things from |
2549 | this function should probably be moved into target_pre_inferior. */ | |
2550 | target_pre_inferior (from_tty); | |
2551 | ||
8bc2fe48 PA |
2552 | if (args != NULL) |
2553 | async_exec = strip_bg_char (&args); | |
2554 | ||
b3ccfe11 TT |
2555 | attach_target = find_attach_target (); |
2556 | ||
8bc2fe48 PA |
2557 | prepare_execution_command (attach_target, async_exec); |
2558 | ||
b3ccfe11 | 2559 | if (non_stop && !attach_target->to_supports_non_stop (attach_target)) |
9908b566 VP |
2560 | error (_("Cannot attach to this target in non-stop mode")); |
2561 | ||
b3ccfe11 TT |
2562 | attach_target->to_attach (attach_target, args, from_tty); |
2563 | /* to_attach should push the target, so after this point we | |
2564 | shouldn't refer to attach_target again. */ | |
2565 | attach_target = NULL; | |
c906108c SS |
2566 | |
2567 | /* Set up the "saved terminal modes" of the inferior | |
2568 | based on what modes we are starting it with. */ | |
2569 | target_terminal_init (); | |
2570 | ||
7180e04a PA |
2571 | /* Install inferior's terminal modes. This may look like a no-op, |
2572 | as we've just saved them above, however, this does more than | |
2573 | restore terminal settings: | |
2574 | ||
2575 | - installs a SIGINT handler that forwards SIGINT to the inferior. | |
2576 | Otherwise a Ctrl-C pressed just while waiting for the initial | |
2577 | stop would end up as a spurious Quit. | |
2578 | ||
2579 | - removes stdin from the event loop, which we need if attaching | |
2580 | in the foreground, otherwise on targets that report an initial | |
2581 | stop on attach (which are most) we'd process input/commands | |
2582 | while we're in the event loop waiting for that stop. That is, | |
2583 | before the attach continuation runs and the command is really | |
2584 | finished. */ | |
2585 | target_terminal_inferior (); | |
2586 | ||
c906108c SS |
2587 | /* Set up execution context to know that we should return from |
2588 | wait_for_inferior as soon as the target reports a stop. */ | |
2589 | init_wait_for_inferior (); | |
70509625 | 2590 | clear_proceed_status (0); |
c906108c | 2591 | |
74531fed PA |
2592 | if (non_stop) |
2593 | { | |
2594 | /* If we find that the current thread isn't stopped, explicitly | |
2595 | do so now, because we're going to install breakpoints and | |
2596 | poke at memory. */ | |
2597 | ||
2598 | if (async_exec) | |
2599 | /* The user requested an `attach&'; stop just one thread. */ | |
2600 | target_stop (inferior_ptid); | |
2601 | else | |
2602 | /* The user requested an `attach', so stop all threads of this | |
2603 | inferior. */ | |
2604 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2605 | } | |
2606 | ||
dc177b7a PA |
2607 | /* Some system don't generate traps when attaching to inferior. |
2608 | E.g. Mach 3 or GNU hurd. */ | |
2609 | if (!target_attach_no_wait) | |
c5aa993b | 2610 | { |
d6b48e9c PA |
2611 | struct inferior *inferior = current_inferior (); |
2612 | ||
1777feb0 | 2613 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2614 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2615 | need a way for handle_inferior_event to reset the stop_signal | |
2616 | variable after an attach, and this is what | |
2617 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2618 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2619 | |
dc177b7a PA |
2620 | if (target_can_async_p ()) |
2621 | { | |
2622 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2623 | struct attach_command_continuation_args *a; |
2624 | ||
2625 | a = xmalloc (sizeof (*a)); | |
2626 | a->args = xstrdup (args); | |
2627 | a->from_tty = from_tty; | |
2628 | a->async_exec = async_exec; | |
e0ba6746 PA |
2629 | add_inferior_continuation (attach_command_continuation, a, |
2630 | attach_command_continuation_free_args); | |
dc177b7a PA |
2631 | return; |
2632 | } | |
c906108c | 2633 | |
e4c8541f | 2634 | wait_for_inferior (); |
dc177b7a | 2635 | } |
6426a772 | 2636 | |
9356cf8d | 2637 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2638 | } |
2639 | ||
1941c569 PA |
2640 | /* We had just found out that the target was already attached to an |
2641 | inferior. PTID points at a thread of this new inferior, that is | |
2642 | the most likely to be stopped right now, but not necessarily so. | |
2643 | The new inferior is assumed to be already added to the inferior | |
2644 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2645 | this inferior running, except those we've explicitly seen reported | |
2646 | as stopped. */ | |
2647 | ||
2648 | void | |
2649 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2650 | { | |
2651 | struct cleanup* old_chain; | |
2652 | int async_exec; | |
2653 | ||
2654 | old_chain = make_cleanup (null_cleanup, NULL); | |
2655 | ||
2656 | /* If in non-stop, leave threads as running as they were. If | |
2657 | they're stopped for some reason other than us telling it to, the | |
a493e3e2 | 2658 | target reports a signal != GDB_SIGNAL_0. We don't try to |
1941c569 PA |
2659 | resume threads with such a stop signal. */ |
2660 | async_exec = non_stop; | |
2661 | ||
2662 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2663 | make_cleanup_restore_current_thread (); | |
2664 | ||
2665 | switch_to_thread (ptid); | |
2666 | ||
2667 | /* When we "notice" a new inferior we need to do all the things we | |
2668 | would normally do if we had just attached to it. */ | |
2669 | ||
2670 | if (is_executing (inferior_ptid)) | |
2671 | { | |
2672 | struct inferior *inferior = current_inferior (); | |
2673 | ||
2674 | /* We're going to install breakpoints, and poke at memory, | |
2675 | ensure that the inferior is stopped for a moment while we do | |
2676 | that. */ | |
2677 | target_stop (inferior_ptid); | |
2678 | ||
16c381f0 | 2679 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2680 | |
2681 | /* Wait for stop before proceeding. */ | |
2682 | if (target_can_async_p ()) | |
2683 | { | |
2684 | struct attach_command_continuation_args *a; | |
2685 | ||
2686 | a = xmalloc (sizeof (*a)); | |
2687 | a->args = xstrdup (""); | |
2688 | a->from_tty = from_tty; | |
2689 | a->async_exec = async_exec; | |
2690 | add_inferior_continuation (attach_command_continuation, a, | |
2691 | attach_command_continuation_free_args); | |
2692 | ||
2693 | do_cleanups (old_chain); | |
2694 | return; | |
2695 | } | |
2696 | else | |
e4c8541f | 2697 | wait_for_inferior (); |
1941c569 PA |
2698 | } |
2699 | ||
2700 | async_exec = leave_running; | |
2701 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2702 | ||
2703 | do_cleanups (old_chain); | |
2704 | } | |
2705 | ||
c906108c SS |
2706 | /* |
2707 | * detach_command -- | |
2708 | * takes a program previously attached to and detaches it. | |
2709 | * The program resumes execution and will no longer stop | |
2710 | * on signals, etc. We better not have left any breakpoints | |
2711 | * in the program or it'll die when it hits one. For this | |
2712 | * to work, it may be necessary for the process to have been | |
2713 | * previously attached. It *might* work if the program was | |
2714 | * started via the normal ptrace (PTRACE_TRACEME). | |
2715 | */ | |
2716 | ||
6418d433 | 2717 | void |
fba45db2 | 2718 | detach_command (char *args, int from_tty) |
c906108c | 2719 | { |
1f5d0fc9 | 2720 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2721 | |
2722 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2723 | error (_("The program is not being run.")); | |
2724 | ||
2f9d54cf PA |
2725 | query_if_trace_running (from_tty); |
2726 | ||
2727 | disconnect_tracing (); | |
d5551862 | 2728 | |
c906108c | 2729 | target_detach (args, from_tty); |
50c71eaf PA |
2730 | |
2731 | /* If the solist is global across inferiors, don't clear it when we | |
2732 | detach from a single inferior. */ | |
f5656ead | 2733 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf | 2734 | no_shared_libraries (NULL, from_tty); |
8a305172 | 2735 | |
c35b1492 PA |
2736 | /* If we still have inferiors to debug, then don't mess with their |
2737 | threads. */ | |
2738 | if (!have_inferiors ()) | |
8a305172 PA |
2739 | init_thread_list (); |
2740 | ||
9a4105ab AC |
2741 | if (deprecated_detach_hook) |
2742 | deprecated_detach_hook (); | |
c906108c SS |
2743 | } |
2744 | ||
6ad8ae5c DJ |
2745 | /* Disconnect from the current target without resuming it (leaving it |
2746 | waiting for a debugger). | |
2747 | ||
2748 | We'd better not have left any breakpoints in the program or the | |
2749 | next debugger will get confused. Currently only supported for some | |
2750 | remote targets, since the normal attach mechanisms don't work on | |
2751 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2752 | ||
2753 | static void | |
2754 | disconnect_command (char *args, int from_tty) | |
2755 | { | |
1777feb0 | 2756 | dont_repeat (); /* Not for the faint of heart. */ |
2f9d54cf PA |
2757 | query_if_trace_running (from_tty); |
2758 | disconnect_tracing (); | |
6ad8ae5c | 2759 | target_disconnect (args, from_tty); |
e85a822c | 2760 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2761 | init_thread_list (); |
9a4105ab AC |
2762 | if (deprecated_detach_hook) |
2763 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2764 | } |
2765 | ||
77ebaa5a VP |
2766 | void |
2767 | interrupt_target_1 (int all_threads) | |
2768 | { | |
2769 | ptid_t ptid; | |
abbb1732 | 2770 | |
77ebaa5a VP |
2771 | if (all_threads) |
2772 | ptid = minus_one_ptid; | |
2773 | else | |
2774 | ptid = inferior_ptid; | |
2775 | target_stop (ptid); | |
252fbfc8 PA |
2776 | |
2777 | /* Tag the thread as having been explicitly requested to stop, so | |
2778 | other parts of gdb know not to resume this thread automatically, | |
2779 | if it was stopped due to an internal event. Limit this to | |
2780 | non-stop mode, as when debugging a multi-threaded application in | |
2781 | all-stop mode, we will only get one stop event --- it's undefined | |
2782 | which thread will report the event. */ | |
2783 | if (non_stop) | |
2784 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2785 | } |
2786 | ||
6339bfc4 DE |
2787 | /* interrupt [-a] |
2788 | Stop the execution of the target while running in async mode, in | |
8cae4b3f PA |
2789 | the backgound. In all-stop, stop the whole process. In non-stop |
2790 | mode, stop the current thread only by default, or stop all threads | |
2791 | if the `-a' switch is used. */ | |
2792 | ||
1dd5fedc | 2793 | static void |
0a07590b | 2794 | interrupt_command (char *args, int from_tty) |
43ff13b4 | 2795 | { |
362646f5 | 2796 | if (target_can_async_p ()) |
43ff13b4 | 2797 | { |
8cae4b3f PA |
2798 | int all_threads = 0; |
2799 | ||
1777feb0 | 2800 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2801 | |
8cae4b3f PA |
2802 | if (args != NULL |
2803 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2804 | all_threads = 1; | |
2805 | ||
2806 | if (!non_stop && all_threads) | |
2807 | error (_("-a is meaningless in all-stop mode.")); | |
2808 | ||
77ebaa5a | 2809 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2810 | } |
2811 | } | |
2812 | ||
c906108c | 2813 | static void |
d80b854b | 2814 | print_float_info (struct ui_file *file, |
23e3a7ac | 2815 | struct frame_info *frame, const char *args) |
c906108c | 2816 | { |
d80b854b UW |
2817 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2818 | ||
23e3a7ac AC |
2819 | if (gdbarch_print_float_info_p (gdbarch)) |
2820 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2821 | else | |
2822 | { | |
23e3a7ac AC |
2823 | int regnum; |
2824 | int printed_something = 0; | |
ab4327e0 | 2825 | |
f57d151a | 2826 | for (regnum = 0; |
a4bd449d UW |
2827 | regnum < gdbarch_num_regs (gdbarch) |
2828 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2829 | regnum++) |
23e3a7ac | 2830 | { |
f9418c0f | 2831 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2832 | { |
2833 | printed_something = 1; | |
23e3a7ac | 2834 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2835 | } |
2836 | } | |
2837 | if (!printed_something) | |
3e43a32a MS |
2838 | fprintf_filtered (file, "No floating-point info " |
2839 | "available for this processor.\n"); | |
23e3a7ac AC |
2840 | } |
2841 | } | |
2842 | ||
2843 | static void | |
2844 | float_info (char *args, int from_tty) | |
2845 | { | |
206415a3 DJ |
2846 | if (!target_has_registers) |
2847 | error (_("The program has no registers now.")); | |
2848 | ||
d80b854b | 2849 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2850 | } |
2851 | \f | |
c906108c | 2852 | static void |
fba45db2 | 2853 | unset_command (char *args, int from_tty) |
c906108c | 2854 | { |
3e43a32a MS |
2855 | printf_filtered (_("\"unset\" must be followed by the " |
2856 | "name of an unset subcommand.\n")); | |
635c7e8a | 2857 | help_list (unsetlist, "unset ", all_commands, gdb_stdout); |
c906108c SS |
2858 | } |
2859 | ||
145b16a9 UW |
2860 | /* Implement `info proc' family of commands. */ |
2861 | ||
2862 | static void | |
2863 | info_proc_cmd_1 (char *args, enum info_proc_what what, int from_tty) | |
2864 | { | |
3030c96e UW |
2865 | struct gdbarch *gdbarch = get_current_arch (); |
2866 | ||
451b7c33 TT |
2867 | if (!target_info_proc (args, what)) |
2868 | { | |
2869 | if (gdbarch_info_proc_p (gdbarch)) | |
2870 | gdbarch_info_proc (gdbarch, args, what); | |
2871 | else | |
2872 | error (_("Not supported on this target.")); | |
2873 | } | |
145b16a9 UW |
2874 | } |
2875 | ||
2876 | /* Implement `info proc' when given without any futher parameters. */ | |
2877 | ||
2878 | static void | |
2879 | info_proc_cmd (char *args, int from_tty) | |
2880 | { | |
2881 | info_proc_cmd_1 (args, IP_MINIMAL, from_tty); | |
2882 | } | |
2883 | ||
2884 | /* Implement `info proc mappings'. */ | |
2885 | ||
2886 | static void | |
2887 | info_proc_cmd_mappings (char *args, int from_tty) | |
2888 | { | |
2889 | info_proc_cmd_1 (args, IP_MAPPINGS, from_tty); | |
2890 | } | |
2891 | ||
2892 | /* Implement `info proc stat'. */ | |
2893 | ||
2894 | static void | |
2895 | info_proc_cmd_stat (char *args, int from_tty) | |
2896 | { | |
2897 | info_proc_cmd_1 (args, IP_STAT, from_tty); | |
2898 | } | |
2899 | ||
2900 | /* Implement `info proc status'. */ | |
2901 | ||
2902 | static void | |
2903 | info_proc_cmd_status (char *args, int from_tty) | |
2904 | { | |
2905 | info_proc_cmd_1 (args, IP_STATUS, from_tty); | |
2906 | } | |
2907 | ||
2908 | /* Implement `info proc cwd'. */ | |
2909 | ||
2910 | static void | |
2911 | info_proc_cmd_cwd (char *args, int from_tty) | |
2912 | { | |
2913 | info_proc_cmd_1 (args, IP_CWD, from_tty); | |
2914 | } | |
2915 | ||
2916 | /* Implement `info proc cmdline'. */ | |
2917 | ||
2918 | static void | |
2919 | info_proc_cmd_cmdline (char *args, int from_tty) | |
2920 | { | |
2921 | info_proc_cmd_1 (args, IP_CMDLINE, from_tty); | |
2922 | } | |
2923 | ||
2924 | /* Implement `info proc exe'. */ | |
2925 | ||
2926 | static void | |
2927 | info_proc_cmd_exe (char *args, int from_tty) | |
2928 | { | |
2929 | info_proc_cmd_1 (args, IP_EXE, from_tty); | |
2930 | } | |
2931 | ||
2932 | /* Implement `info proc all'. */ | |
2933 | ||
2934 | static void | |
2935 | info_proc_cmd_all (char *args, int from_tty) | |
2936 | { | |
2937 | info_proc_cmd_1 (args, IP_ALL, from_tty); | |
2938 | } | |
2939 | ||
c906108c | 2940 | void |
fba45db2 | 2941 | _initialize_infcmd (void) |
c906108c | 2942 | { |
145b16a9 | 2943 | static struct cmd_list_element *info_proc_cmdlist; |
3cb3b8df | 2944 | struct cmd_list_element *c = NULL; |
6f937416 | 2945 | const char *cmd_name; |
3cb3b8df | 2946 | |
1777feb0 | 2947 | /* Add the filename of the terminal connected to inferior I/O. */ |
3cb3b8df | 2948 | add_setshow_filename_cmd ("inferior-tty", class_run, |
3f81c18a | 2949 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
2950 | Set terminal for future runs of program being debugged."), _("\ |
2951 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
2952 | Usage: set inferior-tty /dev/pts/1"), |
2953 | set_inferior_tty_command, | |
2954 | show_inferior_tty_command, | |
2955 | &setlist, &showlist); | |
3cb3b8df | 2956 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 2957 | |
6ace3df1 YQ |
2958 | cmd_name = "args"; |
2959 | add_setshow_string_noescape_cmd (cmd_name, class_run, | |
2960 | &inferior_args_scratch, _("\ | |
b4b4ac0b AC |
2961 | Set argument list to give program being debugged when it is started."), _("\ |
2962 | Show argument list to give program being debugged when it is started."), _("\ | |
2963 | Follow this command with any number of args, to be passed to the program."), | |
6ace3df1 YQ |
2964 | set_args_command, |
2965 | show_args_command, | |
2966 | &setlist, &showlist); | |
2967 | c = lookup_cmd (&cmd_name, setlist, "", -1, 1); | |
2968 | gdb_assert (c != NULL); | |
2969 | set_cmd_completer (c, filename_completer); | |
c906108c | 2970 | |
1a966eab AC |
2971 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2972 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2973 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2974 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2975 | environment to be given to the program."), &showlist); |
5ba2abeb | 2976 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2977 | |
2978 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2979 | _("Complement to certain \"set\" commands."), |
c906108c | 2980 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2981 | |
1a966eab AC |
2982 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2983 | Cancel environment variable VAR for the program.\n\ | |
2984 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2985 | &unsetlist); |
5ba2abeb | 2986 | set_cmd_completer (c, noop_completer); |
c906108c | 2987 | |
1a966eab AC |
2988 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2989 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2990 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2991 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2992 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2993 | &setlist); |
5ba2abeb | 2994 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2995 | |
1bedd215 AC |
2996 | c = add_com ("path", class_files, path_command, _("\ |
2997 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2998 | $cwd in the path means the current working directory.\n\ |
2999 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3000 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3001 | fully linked executable files and separately compiled object files as \ |
3002 | needed.")); | |
5ba2abeb | 3003 | set_cmd_completer (c, filename_completer); |
c906108c | 3004 | |
1a966eab AC |
3005 | c = add_cmd ("paths", no_class, path_info, _("\ |
3006 | Current search path for finding object files.\n\ | |
c906108c SS |
3007 | $cwd in the path means the current working directory.\n\ |
3008 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3009 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3010 | fully linked executable files and separately compiled object files as \ |
3011 | needed."), | |
c906108c | 3012 | &showlist); |
5ba2abeb | 3013 | set_cmd_completer (c, noop_completer); |
c906108c | 3014 | |
2277426b PA |
3015 | add_prefix_cmd ("kill", class_run, kill_command, |
3016 | _("Kill execution of program being debugged."), | |
3017 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 3018 | |
1bedd215 AC |
3019 | add_com ("attach", class_run, attach_command, _("\ |
3020 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
3021 | This command attaches to another target, of the same type as your last\n\ |
3022 | \"target\" command (\"info files\" will show your target stack).\n\ | |
3023 | The command may take as argument a process id or a device file.\n\ | |
3024 | For a process id, you must have permission to send the process a signal,\n\ | |
3025 | and it must have the same effective uid as the debugger.\n\ | |
3026 | When using \"attach\" with a process id, the debugger finds the\n\ | |
3027 | program running in the process, looking first in the current working\n\ | |
3028 | directory, or (if not found there) using the source file search path\n\ | |
3029 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 3030 | to specify the program, and to load its symbol table.")); |
c906108c | 3031 | |
f73adfeb | 3032 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 3033 | Detach a process or file previously attached.\n\ |
c906108c | 3034 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
3035 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
3036 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 3037 | |
1bedd215 AC |
3038 | add_com ("disconnect", class_run, disconnect_command, _("\ |
3039 | Disconnect from a target.\n\ | |
6ad8ae5c | 3040 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 3041 | all targets.")); |
6ad8ae5c | 3042 | |
de0bea00 | 3043 | c = add_com ("signal", class_run, signal_command, _("\ |
486c7739 MF |
3044 | Continue program with the specified signal.\n\ |
3045 | Usage: signal SIGNAL\n\ | |
2edda2ff | 3046 | The SIGNAL argument is processed the same as the handle command.\n\ |
486c7739 MF |
3047 | \n\ |
3048 | An argument of \"0\" means continue the program without sending it a signal.\n\ | |
3049 | This is useful in cases where the program stopped because of a signal,\n\ | |
81219e53 DE |
3050 | and you want to resume the program while discarding the signal.\n\ |
3051 | \n\ | |
3052 | In a multi-threaded program the signal is delivered to, or discarded from,\n\ | |
3053 | the current thread only.")); | |
3054 | set_cmd_completer (c, signal_completer); | |
3055 | ||
3056 | c = add_com ("queue-signal", class_run, queue_signal_command, _("\ | |
3057 | Queue a signal to be delivered to the current thread when it is resumed.\n\ | |
3058 | Usage: queue-signal SIGNAL\n\ | |
3059 | The SIGNAL argument is processed the same as the handle command.\n\ | |
3060 | It is an error if the handling state of SIGNAL is \"nopass\".\n\ | |
3061 | \n\ | |
3062 | An argument of \"0\" means remove any currently queued signal from\n\ | |
3063 | the current thread. This is useful in cases where the program stopped\n\ | |
3064 | because of a signal, and you want to resume it while discarding the signal.\n\ | |
3065 | \n\ | |
3066 | In a multi-threaded program the signal is queued with, or discarded from,\n\ | |
3067 | the current thread only.")); | |
de0bea00 | 3068 | set_cmd_completer (c, signal_completer); |
c906108c | 3069 | |
1bedd215 AC |
3070 | add_com ("stepi", class_run, stepi_command, _("\ |
3071 | Step one instruction exactly.\n\ | |
486c7739 MF |
3072 | Usage: stepi [N]\n\ |
3073 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3074 | reason).")); |
c906108c SS |
3075 | add_com_alias ("si", "stepi", class_alias, 0); |
3076 | ||
1bedd215 AC |
3077 | add_com ("nexti", class_run, nexti_command, _("\ |
3078 | Step one instruction, but proceed through subroutine calls.\n\ | |
486c7739 MF |
3079 | Usage: nexti [N]\n\ |
3080 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3081 | reason).")); |
c906108c SS |
3082 | add_com_alias ("ni", "nexti", class_alias, 0); |
3083 | ||
1bedd215 AC |
3084 | add_com ("finish", class_run, finish_command, _("\ |
3085 | Execute until selected stack frame returns.\n\ | |
486c7739 | 3086 | Usage: finish\n\ |
1bedd215 | 3087 | Upon return, the value returned is printed and put in the value history.")); |
0e479716 | 3088 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 3089 | |
1bedd215 AC |
3090 | add_com ("next", class_run, next_command, _("\ |
3091 | Step program, proceeding through subroutine calls.\n\ | |
486c7739 MF |
3092 | Usage: next [N]\n\ |
3093 | Unlike \"step\", if the current source line calls a subroutine,\n\ | |
3094 | this command does not enter the subroutine, but instead steps over\n\ | |
dbf6a605 | 3095 | the call, in effect treating it as a single source line.")); |
c906108c SS |
3096 | add_com_alias ("n", "next", class_run, 1); |
3097 | if (xdb_commands) | |
c5aa993b | 3098 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 3099 | |
1bedd215 AC |
3100 | add_com ("step", class_run, step_command, _("\ |
3101 | Step program until it reaches a different source line.\n\ | |
486c7739 MF |
3102 | Usage: step [N]\n\ |
3103 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3104 | reason).")); |
c906108c SS |
3105 | add_com_alias ("s", "step", class_run, 1); |
3106 | ||
1bedd215 AC |
3107 | c = add_com ("until", class_run, until_command, _("\ |
3108 | Execute until the program reaches a source line greater than the current\n\ | |
3e43a32a MS |
3109 | or a specified location (same args as break command) within the current \ |
3110 | frame.")); | |
5ba2abeb | 3111 | set_cmd_completer (c, location_completer); |
c906108c | 3112 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 3113 | |
1bedd215 | 3114 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
3115 | Continue the program up to the given location (same form as args for break \ |
3116 | command).\n\ | |
1bedd215 | 3117 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
3118 | set_cmd_completer (c, location_completer); |
3119 | ||
1bedd215 AC |
3120 | c = add_com ("jump", class_run, jump_command, _("\ |
3121 | Continue program being debugged at specified line or address.\n\ | |
486c7739 | 3122 | Usage: jump <location>\n\ |
c906108c | 3123 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 3124 | for an address to start at.")); |
5ba2abeb | 3125 | set_cmd_completer (c, location_completer); |
c1d780c2 | 3126 | add_com_alias ("j", "jump", class_run, 1); |
c906108c | 3127 | |
b83266a0 | 3128 | if (xdb_commands) |
c94fdfd0 | 3129 | { |
1bedd215 AC |
3130 | c = add_com ("go", class_run, go_command, _("\ |
3131 | Usage: go <location>\n\ | |
c906108c SS |
3132 | Continue program being debugged, stopping at specified line or \n\ |
3133 | address.\n\ | |
3134 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
3135 | expression for an address to start at.\n\ | |
1bedd215 | 3136 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 3137 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 3138 | } |
b83266a0 | 3139 | |
c906108c | 3140 | if (xdb_commands) |
c5aa993b | 3141 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 3142 | |
df983543 | 3143 | add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 3144 | Continue program being debugged, after signal or breakpoint.\n\ |
486c7739 | 3145 | Usage: continue [N]\n\ |
c906108c SS |
3146 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
3147 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
3148 | the breakpoint won't break until the Nth time it is reached).\n\ |
3149 | \n\ | |
3150 | If non-stop mode is enabled, continue only the current thread,\n\ | |
3151 | otherwise all the threads in the program are continued. To \n\ | |
3152 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
3153 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
3154 | add_com_alias ("c", "cont", class_run, 1); |
3155 | add_com_alias ("fg", "cont", class_run, 1); | |
3156 | ||
1bedd215 AC |
3157 | c = add_com ("run", class_run, run_command, _("\ |
3158 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c | 3159 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
3e43a32a MS |
3160 | Input and output redirection with \">\", \"<\", or \">>\" are also \ |
3161 | allowed.\n\n\ | |
3162 | With no arguments, uses arguments last specified (with \"run\" \ | |
3163 | or \"set args\").\n\ | |
c906108c | 3164 | To cancel previous arguments and run with no arguments,\n\ |
1bedd215 | 3165 | use \"set args\" without arguments.")); |
5ba2abeb | 3166 | set_cmd_completer (c, filename_completer); |
c906108c SS |
3167 | add_com_alias ("r", "run", class_run, 1); |
3168 | if (xdb_commands) | |
3169 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 3170 | _("Start debugged program with no arguments.")); |
c906108c | 3171 | |
1bedd215 | 3172 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
3173 | Run the debugged program until the beginning of the main procedure.\n\ |
3174 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 3175 | \"run\" command.")); |
a4d5f2e0 JB |
3176 | set_cmd_completer (c, filename_completer); |
3177 | ||
0a07590b | 3178 | add_com ("interrupt", class_run, interrupt_command, |
df983543 | 3179 | _("Interrupt the execution of the debugged program.\n\ |
8cae4b3f PA |
3180 | If non-stop mode is enabled, interrupt only the current thread,\n\ |
3181 | otherwise all the threads in the program are stopped. To \n\ | |
3182 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 3183 | |
1bedd215 AC |
3184 | add_info ("registers", nofp_registers_info, _("\ |
3185 | List of integer registers and their contents, for selected stack frame.\n\ | |
3186 | Register name as argument means describe only that register.")); | |
7194c49b | 3187 | add_info_alias ("r", "registers", 1); |
c906108c SS |
3188 | |
3189 | if (xdb_commands) | |
1bedd215 AC |
3190 | add_com ("lr", class_info, nofp_registers_info, _("\ |
3191 | List of integer registers and their contents, for selected stack frame.\n\ | |
3192 | Register name as argument means describe only that register.")); | |
3193 | add_info ("all-registers", all_registers_info, _("\ | |
3194 | List of all registers and their contents, for selected stack frame.\n\ | |
3195 | Register name as argument means describe only that register.")); | |
c906108c SS |
3196 | |
3197 | add_info ("program", program_info, | |
1bedd215 | 3198 | _("Execution status of the program.")); |
c906108c SS |
3199 | |
3200 | add_info ("float", float_info, | |
1bedd215 | 3201 | _("Print the status of the floating point unit\n")); |
c906108c | 3202 | |
e76f1f2e | 3203 | add_info ("vector", vector_info, |
1bedd215 | 3204 | _("Print the status of the vector unit\n")); |
145b16a9 UW |
3205 | |
3206 | add_prefix_cmd ("proc", class_info, info_proc_cmd, | |
3207 | _("\ | |
3208 | Show /proc process information about any running process.\n\ | |
3209 | Specify any process id, or use the program being debugged by default."), | |
3210 | &info_proc_cmdlist, "info proc ", | |
3211 | 1/*allow-unknown*/, &infolist); | |
3212 | ||
3213 | add_cmd ("mappings", class_info, info_proc_cmd_mappings, _("\ | |
3214 | List of mapped memory regions."), | |
3215 | &info_proc_cmdlist); | |
3216 | ||
3217 | add_cmd ("stat", class_info, info_proc_cmd_stat, _("\ | |
3218 | List process info from /proc/PID/stat."), | |
3219 | &info_proc_cmdlist); | |
3220 | ||
3221 | add_cmd ("status", class_info, info_proc_cmd_status, _("\ | |
3222 | List process info from /proc/PID/status."), | |
3223 | &info_proc_cmdlist); | |
3224 | ||
3225 | add_cmd ("cwd", class_info, info_proc_cmd_cwd, _("\ | |
3226 | List current working directory of the process."), | |
3227 | &info_proc_cmdlist); | |
3228 | ||
3229 | add_cmd ("cmdline", class_info, info_proc_cmd_cmdline, _("\ | |
3230 | List command line arguments of the process."), | |
3231 | &info_proc_cmdlist); | |
3232 | ||
3233 | add_cmd ("exe", class_info, info_proc_cmd_exe, _("\ | |
3234 | List absolute filename for executable of the process."), | |
3235 | &info_proc_cmdlist); | |
3236 | ||
3237 | add_cmd ("all", class_info, info_proc_cmd_all, _("\ | |
3238 | List all available /proc info."), | |
3239 | &info_proc_cmdlist); | |
c906108c | 3240 | } |