Commit | Line | Data |
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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 | void _initialize_infcmd (void); |
c906108c | 108 | |
c906108c | 109 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 110 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 111 | |
3e43a32a MS |
112 | /* Scratch area where string containing arguments to give to the |
113 | program will be stored by 'set args'. As soon as anything is | |
114 | stored, notice_args_set will move it into per-inferior storage. | |
1777feb0 | 115 | Arguments are separated by spaces. Empty string (pointer to '\0') |
3e43a32a | 116 | means no args. */ |
c906108c | 117 | |
3f81c18a | 118 | static char *inferior_args_scratch; |
c906108c | 119 | |
3f81c18a VP |
120 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
121 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 122 | |
3f81c18a | 123 | static char *inferior_io_terminal_scratch; |
c906108c SS |
124 | |
125 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
126 | Since various parts of infrun.c test this to see whether there is a program | |
127 | being debugged it should be nonzero (currently 3 is used) for remote | |
128 | debugging. */ | |
129 | ||
39f77062 | 130 | ptid_t inferior_ptid; |
c906108c | 131 | |
c906108c SS |
132 | /* Address at which inferior stopped. */ |
133 | ||
134 | CORE_ADDR stop_pc; | |
135 | ||
c906108c SS |
136 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
137 | ||
aa7d318d | 138 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
139 | |
140 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
141 | process. */ | |
142 | ||
143 | int stopped_by_random_signal; | |
144 | ||
98882a26 PA |
145 | /* See inferior.h. */ |
146 | ||
147 | int startup_with_shell = 1; | |
148 | ||
c906108c | 149 | \f |
1777feb0 | 150 | /* Accessor routines. */ |
07091751 | 151 | |
3f81c18a VP |
152 | /* Set the io terminal for the current inferior. Ownership of |
153 | TERMINAL_NAME is not transferred. */ | |
154 | ||
3cb3b8df BR |
155 | void |
156 | set_inferior_io_terminal (const char *terminal_name) | |
157 | { | |
3f81c18a VP |
158 | xfree (current_inferior ()->terminal); |
159 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
160 | } |
161 | ||
162 | const char * | |
163 | get_inferior_io_terminal (void) | |
164 | { | |
3f81c18a VP |
165 | return current_inferior ()->terminal; |
166 | } | |
167 | ||
168 | static void | |
169 | set_inferior_tty_command (char *args, int from_tty, | |
170 | struct cmd_list_element *c) | |
171 | { | |
172 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
173 | Now route it to current inferior. */ | |
174 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
175 | } | |
176 | ||
177 | static void | |
178 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
179 | struct cmd_list_element *c, const char *value) | |
180 | { | |
181 | /* Note that we ignore the passed-in value in favor of computing it | |
182 | directly. */ | |
275f2e57 | 183 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 184 | |
275f2e57 DJ |
185 | if (inferior_io_terminal == NULL) |
186 | inferior_io_terminal = ""; | |
3f81c18a | 187 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
188 | _("Terminal for future runs of program being debugged " |
189 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
190 | } |
191 | ||
07091751 FN |
192 | char * |
193 | get_inferior_args (void) | |
194 | { | |
3f81c18a | 195 | if (current_inferior ()->argc != 0) |
552c04a7 | 196 | { |
3f81c18a | 197 | char *n; |
552c04a7 | 198 | |
3f81c18a VP |
199 | n = construct_inferior_arguments (current_inferior ()->argc, |
200 | current_inferior ()->argv); | |
201 | set_inferior_args (n); | |
202 | xfree (n); | |
552c04a7 TT |
203 | } |
204 | ||
3f81c18a VP |
205 | if (current_inferior ()->args == NULL) |
206 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 207 | |
3f81c18a | 208 | return current_inferior ()->args; |
07091751 FN |
209 | } |
210 | ||
3f81c18a VP |
211 | /* Set the arguments for the current inferior. Ownership of |
212 | NEWARGS is not transferred. */ | |
213 | ||
214 | void | |
07091751 FN |
215 | set_inferior_args (char *newargs) |
216 | { | |
3f81c18a VP |
217 | xfree (current_inferior ()->args); |
218 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
219 | current_inferior ()->argc = 0; | |
220 | current_inferior ()->argv = 0; | |
07091751 | 221 | } |
c5aa993b | 222 | |
552c04a7 TT |
223 | void |
224 | set_inferior_args_vector (int argc, char **argv) | |
225 | { | |
3f81c18a VP |
226 | current_inferior ()->argc = argc; |
227 | current_inferior ()->argv = argv; | |
552c04a7 TT |
228 | } |
229 | ||
230 | /* Notice when `set args' is run. */ | |
6339bfc4 | 231 | |
552c04a7 | 232 | static void |
3f81c18a | 233 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 234 | { |
3f81c18a VP |
235 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
236 | Now route it to current inferior. */ | |
237 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
238 | } |
239 | ||
240 | /* Notice when `show args' is run. */ | |
6339bfc4 | 241 | |
552c04a7 | 242 | static void |
3f81c18a VP |
243 | show_args_command (struct ui_file *file, int from_tty, |
244 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 245 | { |
258c00cc TT |
246 | /* Note that we ignore the passed-in value in favor of computing it |
247 | directly. */ | |
248 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
249 | } |
250 | ||
c2a727fa TT |
251 | \f |
252 | /* Compute command-line string given argument vector. This does the | |
253 | same shell processing as fork_inferior. */ | |
6339bfc4 | 254 | |
c2a727fa | 255 | char * |
bd57a748 | 256 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
257 | { |
258 | char *result; | |
259 | ||
98882a26 | 260 | if (startup_with_shell) |
c2a727fa | 261 | { |
5d60742e EZ |
262 | #ifdef __MINGW32__ |
263 | /* This holds all the characters considered special to the | |
264 | Windows shells. */ | |
265 | char *special = "\"!&*|[]{}<>?`~^=;, \t\n"; | |
266 | const char quote = '"'; | |
267 | #else | |
c2a727fa TT |
268 | /* This holds all the characters considered special to the |
269 | typical Unix shells. We include `^' because the SunOS | |
270 | /bin/sh treats it as a synonym for `|'. */ | |
5d60742e EZ |
271 | char *special = "\"!#$&*()\\|[]{}<>?'`~^; \t\n"; |
272 | const char quote = '\''; | |
273 | #endif | |
c2a727fa TT |
274 | int i; |
275 | int length = 0; | |
276 | char *out, *cp; | |
277 | ||
278 | /* We over-compute the size. It shouldn't matter. */ | |
279 | for (i = 0; i < argc; ++i) | |
c2226152 | 280 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
281 | |
282 | result = (char *) xmalloc (length); | |
283 | out = result; | |
284 | ||
285 | for (i = 0; i < argc; ++i) | |
286 | { | |
287 | if (i > 0) | |
288 | *out++ = ' '; | |
289 | ||
03c6228e AS |
290 | /* Need to handle empty arguments specially. */ |
291 | if (argv[i][0] == '\0') | |
c2a727fa | 292 | { |
5d60742e EZ |
293 | *out++ = quote; |
294 | *out++ = quote; | |
03c6228e AS |
295 | } |
296 | else | |
297 | { | |
5d60742e EZ |
298 | #ifdef __MINGW32__ |
299 | int quoted = 0; | |
300 | ||
301 | if (strpbrk (argv[i], special)) | |
302 | { | |
303 | quoted = 1; | |
304 | *out++ = quote; | |
305 | } | |
306 | #endif | |
03c6228e AS |
307 | for (cp = argv[i]; *cp; ++cp) |
308 | { | |
c2226152 AS |
309 | if (*cp == '\n') |
310 | { | |
311 | /* A newline cannot be quoted with a backslash (it | |
312 | just disappears), only by putting it inside | |
313 | quotes. */ | |
5d60742e | 314 | *out++ = quote; |
c2226152 | 315 | *out++ = '\n'; |
5d60742e | 316 | *out++ = quote; |
c2226152 AS |
317 | } |
318 | else | |
319 | { | |
5d60742e EZ |
320 | #ifdef __MINGW32__ |
321 | if (*cp == quote) | |
322 | #else | |
c2226152 | 323 | if (strchr (special, *cp) != NULL) |
5d60742e | 324 | #endif |
c2226152 AS |
325 | *out++ = '\\'; |
326 | *out++ = *cp; | |
327 | } | |
03c6228e | 328 | } |
5d60742e EZ |
329 | #ifdef __MINGW32__ |
330 | if (quoted) | |
331 | *out++ = quote; | |
332 | #endif | |
c2a727fa TT |
333 | } |
334 | } | |
335 | *out = '\0'; | |
336 | } | |
337 | else | |
338 | { | |
339 | /* In this case we can't handle arguments that contain spaces, | |
340 | tabs, or newlines -- see breakup_args(). */ | |
341 | int i; | |
342 | int length = 0; | |
343 | ||
344 | for (i = 0; i < argc; ++i) | |
345 | { | |
346 | char *cp = strchr (argv[i], ' '); | |
347 | if (cp == NULL) | |
348 | cp = strchr (argv[i], '\t'); | |
349 | if (cp == NULL) | |
350 | cp = strchr (argv[i], '\n'); | |
351 | if (cp != NULL) | |
3e43a32a MS |
352 | error (_("can't handle command-line " |
353 | "argument containing whitespace")); | |
c2a727fa TT |
354 | length += strlen (argv[i]) + 1; |
355 | } | |
356 | ||
357 | result = (char *) xmalloc (length); | |
358 | result[0] = '\0'; | |
359 | for (i = 0; i < argc; ++i) | |
360 | { | |
361 | if (i > 0) | |
362 | strcat (result, " "); | |
363 | strcat (result, argv[i]); | |
364 | } | |
365 | } | |
366 | ||
367 | return result; | |
368 | } | |
552c04a7 TT |
369 | \f |
370 | ||
6c4486e6 PA |
371 | /* This function strips the '&' character (indicating background |
372 | execution) that is added as *the last* of the arguments ARGS of a | |
373 | command. A copy of the incoming ARGS without the '&' is returned, | |
374 | unless the resulting string after stripping is empty, in which case | |
375 | NULL is returned. *BG_CHAR_P is an output boolean that indicates | |
376 | whether the '&' character was found. */ | |
6339bfc4 | 377 | |
6c4486e6 PA |
378 | static char * |
379 | strip_bg_char (const char *args, int *bg_char_p) | |
43ff13b4 | 380 | { |
6c4486e6 | 381 | const char *p; |
c5aa993b | 382 | |
6c4486e6 PA |
383 | if (args == NULL || *args == '\0') |
384 | { | |
385 | *bg_char_p = 0; | |
386 | return NULL; | |
387 | } | |
c5aa993b | 388 | |
6c4486e6 PA |
389 | p = args + strlen (args); |
390 | if (p[-1] == '&') | |
43ff13b4 | 391 | { |
6c4486e6 PA |
392 | p--; |
393 | while (p > args && isspace (p[-1])) | |
394 | p--; | |
395 | ||
396 | *bg_char_p = 1; | |
397 | if (p != args) | |
398 | return savestring (args, p - args); | |
399 | else | |
400 | return NULL; | |
43ff13b4 | 401 | } |
6c4486e6 PA |
402 | |
403 | *bg_char_p = 0; | |
404 | return xstrdup (args); | |
43ff13b4 JM |
405 | } |
406 | ||
281b533b DJ |
407 | /* Common actions to take after creating any sort of inferior, by any |
408 | means (running, attaching, connecting, et cetera). The target | |
409 | should be stopped. */ | |
410 | ||
411 | void | |
412 | post_create_inferior (struct target_ops *target, int from_tty) | |
413 | { | |
ce406537 PA |
414 | volatile struct gdb_exception ex; |
415 | ||
b79599ff DP |
416 | /* Be sure we own the terminal in case write operations are performed. */ |
417 | target_terminal_ours (); | |
418 | ||
424163ea DJ |
419 | /* If the target hasn't taken care of this already, do it now. |
420 | Targets which need to access registers during to_open, | |
421 | to_create_inferior, or to_attach should do it earlier; but many | |
422 | don't need to. */ | |
423 | target_find_description (); | |
424 | ||
ce406537 PA |
425 | /* Now that we know the register layout, retrieve current PC. But |
426 | if the PC is unavailable (e.g., we're opening a core file with | |
427 | missing registers info), ignore it. */ | |
428 | stop_pc = 0; | |
429 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
430 | { | |
431 | stop_pc = regcache_read_pc (get_current_regcache ()); | |
432 | } | |
433 | if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR) | |
434 | throw_exception (ex); | |
f698437e | 435 | |
50c71eaf PA |
436 | if (exec_bfd) |
437 | { | |
2eff07b3 PP |
438 | const unsigned solib_add_generation |
439 | = current_program_space->solib_add_generation; | |
440 | ||
9353355f DJ |
441 | /* Create the hooks to handle shared library load and unload |
442 | events. */ | |
268a4a75 | 443 | solib_create_inferior_hook (from_tty); |
268a4a75 | 444 | |
2eff07b3 PP |
445 | if (current_program_space->solib_add_generation == solib_add_generation) |
446 | { | |
447 | /* The platform-specific hook should load initial shared libraries, | |
448 | but didn't. FROM_TTY will be incorrectly 0 but such solib | |
449 | targets should be fixed anyway. Call it only after the solib | |
450 | target has been initialized by solib_create_inferior_hook. */ | |
451 | ||
452 | if (info_verbose) | |
453 | warning (_("platform-specific solib_create_inferior_hook did " | |
454 | "not load initial shared libraries.")); | |
455 | ||
456 | /* If the solist is global across processes, there's no need to | |
457 | refetch it here. */ | |
f5656ead | 458 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
4d1eb6b4 | 459 | solib_add (NULL, 0, target, auto_solib_add); |
2eff07b3 | 460 | } |
9353355f DJ |
461 | } |
462 | ||
ea5d7a99 PM |
463 | /* If the user sets watchpoints before execution having started, |
464 | then she gets software watchpoints, because GDB can't know which | |
465 | target will end up being pushed, or if it supports hardware | |
466 | watchpoints or not. breakpoint_re_set takes care of promoting | |
467 | watchpoints to hardware watchpoints if possible, however, if this | |
468 | new inferior doesn't load shared libraries or we don't pull in | |
469 | symbols from any other source on this target/arch, | |
470 | breakpoint_re_set is never called. Call it now so that software | |
471 | watchpoints get a chance to be promoted to hardware watchpoints | |
472 | if the now pushed target supports hardware watchpoints. */ | |
473 | breakpoint_re_set (); | |
474 | ||
281b533b DJ |
475 | observer_notify_inferior_created (target, from_tty); |
476 | } | |
477 | ||
a4d5f2e0 JB |
478 | /* Kill the inferior if already running. This function is designed |
479 | to be called when we are about to start the execution of the program | |
480 | from the beginning. Ask the user to confirm that he wants to restart | |
481 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 482 | |
8edfe269 | 483 | static void |
a4d5f2e0 JB |
484 | kill_if_already_running (int from_tty) |
485 | { | |
39f77062 | 486 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 487 | { |
8edfe269 DJ |
488 | /* Bail out before killing the program if we will not be able to |
489 | restart it. */ | |
490 | target_require_runnable (); | |
491 | ||
adf40b2e | 492 | if (from_tty |
9e2f0ad4 HZ |
493 | && !query (_("The program being debugged has been started already.\n\ |
494 | Start it from the beginning? "))) | |
8a3fe4f8 | 495 | error (_("Program not restarted.")); |
c906108c | 496 | target_kill (); |
c906108c | 497 | } |
a4d5f2e0 JB |
498 | } |
499 | ||
329ea579 | 500 | /* See inferior.h. */ |
8bc2fe48 | 501 | |
329ea579 | 502 | void |
8bc2fe48 PA |
503 | prepare_execution_command (struct target_ops *target, int background) |
504 | { | |
505 | /* If we get a request for running in the bg but the target | |
506 | doesn't support it, error out. */ | |
507 | if (background && !target->to_can_async_p (target)) | |
508 | error (_("Asynchronous execution not supported on this target.")); | |
509 | ||
510 | /* If we don't get a request of running in the bg, then we need | |
511 | to simulate synchronous (fg) execution. */ | |
512 | if (!background && target->to_can_async_p (target)) | |
513 | { | |
514 | /* Simulate synchronous execution. Note no cleanup is necessary | |
515 | for this. stdin is re-enabled whenever an error reaches the | |
516 | top level. */ | |
517 | async_disable_stdin (); | |
518 | } | |
519 | } | |
520 | ||
1777feb0 | 521 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
f67a969f JB |
522 | a temporary breakpoint at the begining of the main program before |
523 | running the program. */ | |
524 | ||
a4d5f2e0 | 525 | static void |
f67a969f | 526 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
527 | { |
528 | char *exec_file; | |
29f49a6a PA |
529 | struct cleanup *old_chain; |
530 | ptid_t ptid; | |
79a45e25 | 531 | struct ui_out *uiout = current_uiout; |
b3ccfe11 | 532 | struct target_ops *run_target; |
6c4486e6 PA |
533 | int async_exec; |
534 | struct cleanup *args_chain; | |
c906108c | 535 | |
a4d5f2e0 JB |
536 | dont_repeat (); |
537 | ||
538 | kill_if_already_running (from_tty); | |
3c35e65b UW |
539 | |
540 | init_wait_for_inferior (); | |
c906108c SS |
541 | clear_breakpoint_hit_counts (); |
542 | ||
fd79ecee DJ |
543 | /* Clean up any leftovers from other runs. Some other things from |
544 | this function should probably be moved into target_pre_inferior. */ | |
545 | target_pre_inferior (from_tty); | |
546 | ||
39ad761d JB |
547 | /* The comment here used to read, "The exec file is re-read every |
548 | time we do a generic_mourn_inferior, so we just have to worry | |
549 | about the symbol file." The `generic_mourn_inferior' function | |
550 | gets called whenever the program exits. However, suppose the | |
551 | program exits, and *then* the executable file changes? We need | |
552 | to check again here. Since reopen_exec_file doesn't do anything | |
553 | if the timestamp hasn't changed, I don't see the harm. */ | |
554 | reopen_exec_file (); | |
c906108c SS |
555 | reread_symbols (); |
556 | ||
6c4486e6 PA |
557 | args = strip_bg_char (args, &async_exec); |
558 | args_chain = make_cleanup (xfree, args); | |
f67a969f | 559 | |
8bc2fe48 PA |
560 | /* Do validation and preparation before possibly changing anything |
561 | in the inferior. */ | |
39ad761d | 562 | |
b3ccfe11 TT |
563 | run_target = find_run_target (); |
564 | ||
8bc2fe48 PA |
565 | prepare_execution_command (run_target, async_exec); |
566 | ||
b3ccfe11 | 567 | if (non_stop && !run_target->to_supports_non_stop (run_target)) |
9908b566 VP |
568 | error (_("The target does not support running in non-stop mode.")); |
569 | ||
8bc2fe48 PA |
570 | /* Done. Can now set breakpoints, change inferior args, etc. */ |
571 | ||
572 | /* Insert the temporary breakpoint if a location was specified. */ | |
573 | if (tbreak_at_main) | |
574 | tbreak_command (main_name (), 0); | |
575 | ||
576 | exec_file = (char *) get_exec_file (0); | |
577 | ||
c906108c SS |
578 | /* We keep symbols from add-symbol-file, on the grounds that the |
579 | user might want to add some symbols before running the program | |
580 | (right?). But sometimes (dynamic loading where the user manually | |
581 | introduces the new symbols with add-symbol-file), the code which | |
582 | the symbols describe does not persist between runs. Currently | |
583 | the user has to manually nuke all symbols between runs if they | |
584 | want them to go away (PR 2207). This is probably reasonable. */ | |
585 | ||
8bc2fe48 PA |
586 | /* If there were other args, beside '&', process them. */ |
587 | if (args != NULL) | |
588 | set_inferior_args (args); | |
c906108c SS |
589 | |
590 | if (from_tty) | |
591 | { | |
8b93c638 JM |
592 | ui_out_field_string (uiout, NULL, "Starting program"); |
593 | ui_out_text (uiout, ": "); | |
594 | if (exec_file) | |
595 | ui_out_field_string (uiout, "execfile", exec_file); | |
596 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
597 | /* We call get_inferior_args() because we might need to compute |
598 | the value now. */ | |
599 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
600 | ui_out_text (uiout, "\n"); |
601 | ui_out_flush (uiout); | |
c906108c SS |
602 | } |
603 | ||
6c4486e6 PA |
604 | /* Done with ARGS. */ |
605 | do_cleanups (args_chain); | |
606 | ||
552c04a7 TT |
607 | /* We call get_inferior_args() because we might need to compute |
608 | the value now. */ | |
b3ccfe11 TT |
609 | run_target->to_create_inferior (run_target, exec_file, get_inferior_args (), |
610 | environ_vector (current_inferior ()->environment), | |
611 | from_tty); | |
612 | /* to_create_inferior should push the target, so after this point we | |
613 | shouldn't refer to run_target again. */ | |
614 | run_target = NULL; | |
281b533b | 615 | |
29f49a6a PA |
616 | /* We're starting off a new process. When we get out of here, in |
617 | non-stop mode, finish the state of all threads of that process, | |
618 | but leave other threads alone, as they may be stopped in internal | |
619 | events --- the frontend shouldn't see them as stopped. In | |
620 | all-stop, always finish the state of all threads, as we may be | |
621 | resuming more than just the new process. */ | |
622 | if (non_stop) | |
623 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
624 | else | |
625 | ptid = minus_one_ptid; | |
626 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
627 | ||
de1b3c3d PA |
628 | /* Pass zero for FROM_TTY, because at this point the "run" command |
629 | has done its thing; now we are setting up the running program. */ | |
630 | post_create_inferior (¤t_target, 0); | |
281b533b | 631 | |
74d1f91e JK |
632 | /* Start the target running. Do not use -1 continuation as it would skip |
633 | breakpoint right at the entry point. */ | |
a493e3e2 | 634 | proceed (regcache_read_pc (get_current_regcache ()), GDB_SIGNAL_0, 0); |
c906108c | 635 | |
29f49a6a PA |
636 | /* Since there was no error, there's no need to finish the thread |
637 | states here. */ | |
638 | discard_cleanups (old_chain); | |
639 | } | |
c906108c | 640 | |
f67a969f JB |
641 | static void |
642 | run_command (char *args, int from_tty) | |
643 | { | |
644 | run_command_1 (args, from_tty, 0); | |
645 | } | |
646 | ||
c906108c | 647 | static void |
fba45db2 | 648 | run_no_args_command (char *args, int from_tty) |
c906108c | 649 | { |
3f81c18a | 650 | set_inferior_args (""); |
c906108c | 651 | } |
c906108c | 652 | \f |
c5aa993b | 653 | |
a4d5f2e0 JB |
654 | /* Start the execution of the program up until the beginning of the main |
655 | program. */ | |
656 | ||
657 | static void | |
658 | start_command (char *args, int from_tty) | |
659 | { | |
660 | /* Some languages such as Ada need to search inside the program | |
661 | minimal symbols for the location where to put the temporary | |
662 | breakpoint before starting. */ | |
663 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 664 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 665 | |
f67a969f JB |
666 | /* Run the program until reaching the main procedure... */ |
667 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
668 | } |
669 | ||
8cae4b3f PA |
670 | static int |
671 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
672 | { | |
74531fed PA |
673 | /* We go through all threads individually instead of compressing |
674 | into a single target `resume_all' request, because some threads | |
675 | may be stopped in internal breakpoints/events, or stopped waiting | |
676 | for its turn in the displaced stepping queue (that is, they are | |
677 | running && !executing). The target side has no idea about why | |
678 | the thread is stopped, so a `resume_all' command would resume too | |
679 | much. If/when GDB gains a way to tell the target `hold this | |
680 | thread stopped until I say otherwise', then we can optimize | |
681 | this. */ | |
4f8d22e3 | 682 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
683 | return 0; |
684 | ||
dcf4fbde | 685 | switch_to_thread (thread->ptid); |
70509625 | 686 | clear_proceed_status (0); |
a493e3e2 | 687 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
8cae4b3f PA |
688 | return 0; |
689 | } | |
690 | ||
70221824 | 691 | static void |
d729566a PA |
692 | ensure_valid_thread (void) |
693 | { | |
694 | if (ptid_equal (inferior_ptid, null_ptid) | |
695 | || is_exited (inferior_ptid)) | |
3e43a32a | 696 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
697 | } |
698 | ||
573cda03 | 699 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 700 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
701 | disallow those commands. */ |
702 | ||
70221824 | 703 | static void |
573cda03 SS |
704 | ensure_not_tfind_mode (void) |
705 | { | |
706 | if (get_traceframe_number () >= 0) | |
3e43a32a | 707 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
708 | } |
709 | ||
3d3fef6b YQ |
710 | /* Throw an error indicating the current thread is running. */ |
711 | ||
712 | static void | |
713 | error_is_running (void) | |
714 | { | |
715 | error (_("Cannot execute this command while " | |
716 | "the selected thread is running.")); | |
717 | } | |
718 | ||
719 | /* Calls error_is_running if the current thread is running. */ | |
720 | ||
721 | static void | |
722 | ensure_not_running (void) | |
723 | { | |
724 | if (is_running (inferior_ptid)) | |
725 | error_is_running (); | |
726 | } | |
727 | ||
77ebaa5a VP |
728 | void |
729 | continue_1 (int all_threads) | |
730 | { | |
3d488bfc | 731 | ERROR_NO_INFERIOR; |
573cda03 | 732 | ensure_not_tfind_mode (); |
3d488bfc | 733 | |
77ebaa5a VP |
734 | if (non_stop && all_threads) |
735 | { | |
736 | /* Don't error out if the current thread is running, because | |
abbb1732 | 737 | there may be other stopped threads. */ |
77ebaa5a VP |
738 | struct cleanup *old_chain; |
739 | ||
740 | /* Backup current thread and selected frame. */ | |
741 | old_chain = make_cleanup_restore_current_thread (); | |
742 | ||
743 | iterate_over_threads (proceed_thread_callback, NULL); | |
744 | ||
0ff33695 PA |
745 | if (sync_execution) |
746 | { | |
747 | /* If all threads in the target were already running, | |
748 | proceed_thread_callback ends up never calling proceed, | |
749 | and so nothing calls this to put the inferior's terminal | |
750 | settings in effect and remove stdin from the event loop, | |
751 | which we must when running a foreground command. E.g.: | |
752 | ||
753 | (gdb) c -a& | |
754 | Continuing. | |
755 | <all threads are running now> | |
756 | (gdb) c -a | |
757 | Continuing. | |
758 | <no thread was resumed, but the inferior now owns the terminal> | |
759 | */ | |
760 | target_terminal_inferior (); | |
761 | } | |
762 | ||
77ebaa5a VP |
763 | /* Restore selected ptid. */ |
764 | do_cleanups (old_chain); | |
765 | } | |
766 | else | |
767 | { | |
d729566a | 768 | ensure_valid_thread (); |
77ebaa5a | 769 | ensure_not_running (); |
70509625 | 770 | clear_proceed_status (0); |
a493e3e2 | 771 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
77ebaa5a VP |
772 | } |
773 | } | |
774 | ||
8cae4b3f | 775 | /* continue [-a] [proceed-count] [&] */ |
6339bfc4 | 776 | |
1dd5fedc | 777 | static void |
8cae4b3f | 778 | continue_command (char *args, int from_tty) |
c906108c | 779 | { |
6c4486e6 | 780 | int async_exec; |
8cae4b3f | 781 | int all_threads = 0; |
6c4486e6 PA |
782 | struct cleanup *args_chain; |
783 | ||
c906108c SS |
784 | ERROR_NO_INFERIOR; |
785 | ||
1777feb0 | 786 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
787 | args = strip_bg_char (args, &async_exec); |
788 | args_chain = make_cleanup (xfree, args); | |
43ff13b4 | 789 | |
8bc2fe48 | 790 | prepare_execution_command (¤t_target, async_exec); |
c906108c | 791 | |
8cae4b3f PA |
792 | if (args != NULL) |
793 | { | |
794 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
795 | { | |
796 | all_threads = 1; | |
797 | args += sizeof ("-a") - 1; | |
798 | if (*args == '\0') | |
799 | args = NULL; | |
800 | } | |
801 | } | |
802 | ||
803 | if (!non_stop && all_threads) | |
804 | error (_("`-a' is meaningless in all-stop mode.")); | |
805 | ||
806 | if (args != NULL && all_threads) | |
3e43a32a MS |
807 | error (_("Can't resume all threads and specify " |
808 | "proceed count simultaneously.")); | |
8cae4b3f PA |
809 | |
810 | /* If we have an argument left, set proceed count of breakpoint we | |
811 | stopped at. */ | |
812 | if (args != NULL) | |
c906108c | 813 | { |
347bddb7 | 814 | bpstat bs = NULL; |
8671a17b PA |
815 | int num, stat; |
816 | int stopped = 0; | |
347bddb7 PA |
817 | struct thread_info *tp; |
818 | ||
819 | if (non_stop) | |
e09875d4 | 820 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
821 | else |
822 | { | |
823 | ptid_t last_ptid; | |
824 | struct target_waitstatus ws; | |
825 | ||
826 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 827 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
828 | } |
829 | if (tp != NULL) | |
16c381f0 | 830 | bs = tp->control.stop_bpstat; |
8671a17b PA |
831 | |
832 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
833 | if (stat > 0) | |
834 | { | |
835 | set_ignore_count (num, | |
8cae4b3f | 836 | parse_and_eval_long (args) - 1, |
8671a17b PA |
837 | from_tty); |
838 | /* set_ignore_count prints a message ending with a period. | |
839 | So print two spaces before "Continuing.". */ | |
840 | if (from_tty) | |
841 | printf_filtered (" "); | |
842 | stopped = 1; | |
843 | } | |
844 | ||
845 | if (!stopped && from_tty) | |
c906108c SS |
846 | { |
847 | printf_filtered | |
848 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
849 | } | |
c906108c SS |
850 | } |
851 | ||
6c4486e6 PA |
852 | /* Done with ARGS. */ |
853 | do_cleanups (args_chain); | |
854 | ||
c906108c | 855 | if (from_tty) |
a3f17187 | 856 | printf_filtered (_("Continuing.\n")); |
c906108c | 857 | |
77ebaa5a | 858 | continue_1 (all_threads); |
c906108c SS |
859 | } |
860 | \f | |
edb3359d DJ |
861 | /* Record the starting point of a "step" or "next" command. */ |
862 | ||
863 | static void | |
864 | set_step_frame (void) | |
865 | { | |
866 | struct symtab_and_line sal; | |
867 | ||
868 | find_frame_sal (get_current_frame (), &sal); | |
869 | set_step_info (get_current_frame (), sal); | |
870 | } | |
871 | ||
c906108c SS |
872 | /* Step until outside of current statement. */ |
873 | ||
c906108c | 874 | static void |
fba45db2 | 875 | step_command (char *count_string, int from_tty) |
c906108c SS |
876 | { |
877 | step_1 (0, 0, count_string); | |
878 | } | |
879 | ||
880 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
881 | ||
c906108c | 882 | static void |
fba45db2 | 883 | next_command (char *count_string, int from_tty) |
c906108c SS |
884 | { |
885 | step_1 (1, 0, count_string); | |
886 | } | |
887 | ||
888 | /* Likewise, but step only one instruction. */ | |
889 | ||
1dd5fedc | 890 | static void |
fba45db2 | 891 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
892 | { |
893 | step_1 (0, 1, count_string); | |
894 | } | |
895 | ||
1dd5fedc | 896 | static void |
fba45db2 | 897 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
898 | { |
899 | step_1 (1, 1, count_string); | |
900 | } | |
901 | ||
186c406b | 902 | void |
611c83ae | 903 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 904 | { |
611c83ae PA |
905 | int thread = * (int *) arg; |
906 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
907 | } |
908 | ||
c906108c | 909 | static void |
fba45db2 | 910 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 911 | { |
52f0bd74 | 912 | int count = 1; |
f107f563 | 913 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
6c4486e6 | 914 | int async_exec; |
b3dc826b | 915 | int thread = -1; |
6c4486e6 | 916 | struct cleanup *args_chain; |
c5aa993b | 917 | |
c906108c | 918 | ERROR_NO_INFERIOR; |
573cda03 | 919 | ensure_not_tfind_mode (); |
d729566a | 920 | ensure_valid_thread (); |
94cc34af | 921 | ensure_not_running (); |
43ff13b4 | 922 | |
6c4486e6 PA |
923 | count_string = strip_bg_char (count_string, &async_exec); |
924 | args_chain = make_cleanup (xfree, count_string); | |
c5aa993b | 925 | |
8bc2fe48 | 926 | prepare_execution_command (¤t_target, async_exec); |
43ff13b4 | 927 | |
bb518678 | 928 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 929 | |
6c4486e6 PA |
930 | /* Done with ARGS. */ |
931 | do_cleanups (args_chain); | |
932 | ||
1777feb0 | 933 | if (!single_inst || skip_subroutines) /* Leave si command alone. */ |
c906108c | 934 | { |
186c406b TT |
935 | struct thread_info *tp = inferior_thread (); |
936 | ||
611c83ae | 937 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 938 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 939 | |
186c406b | 940 | set_longjmp_breakpoint (tp, get_frame_id (get_current_frame ())); |
611c83ae | 941 | |
b3dc826b | 942 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
943 | } |
944 | ||
37d94800 | 945 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 946 | if (!target_can_async_p ()) |
c2d11a7d JM |
947 | { |
948 | for (; count > 0; count--) | |
949 | { | |
37d94800 | 950 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 951 | |
751b8ce1 PA |
952 | if (!target_has_execution) |
953 | break; | |
c2d11a7d JM |
954 | else |
955 | { | |
751b8ce1 PA |
956 | struct thread_info *tp = inferior_thread (); |
957 | ||
958 | if (!tp->control.stop_step || !tp->step_multi) | |
959 | { | |
960 | /* If we stopped for some reason that is not stepping | |
961 | there are no further steps to make. */ | |
962 | tp->step_multi = 0; | |
963 | break; | |
964 | } | |
c2d11a7d | 965 | } |
c2d11a7d JM |
966 | } |
967 | ||
f107f563 | 968 | do_cleanups (cleanups); |
c2d11a7d | 969 | } |
c2d11a7d JM |
970 | else |
971 | { | |
37d94800 PA |
972 | /* In the case of an asynchronous target things get complicated; |
973 | do only one step for now, before returning control to the | |
974 | event loop. Let the continuation figure out how many other | |
975 | steps we need to do, and handle them one at the time, through | |
976 | step_once. */ | |
b3dc826b | 977 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 978 | |
611c83ae | 979 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
980 | disable the longjmp breakpoint as appropriate. */ |
981 | discard_cleanups (cleanups); | |
c906108c | 982 | } |
c2d11a7d | 983 | } |
c906108c | 984 | |
bfec99b2 PA |
985 | struct step_1_continuation_args |
986 | { | |
987 | int count; | |
988 | int skip_subroutines; | |
989 | int single_inst; | |
990 | int thread; | |
991 | }; | |
992 | ||
c2d11a7d JM |
993 | /* Called after we are done with one step operation, to check whether |
994 | we need to step again, before we print the prompt and return control | |
1777feb0 MS |
995 | to the user. If count is > 1, we will need to do one more call to |
996 | proceed(), via step_once(). Basically it is like step_once and | |
997 | step_1_continuation are co-recursive. */ | |
6339bfc4 | 998 | |
c2d11a7d | 999 | static void |
fa4cd53f | 1000 | step_1_continuation (void *args, int err) |
c2d11a7d | 1001 | { |
bfec99b2 | 1002 | struct step_1_continuation_args *a = args; |
f13468d9 | 1003 | |
af679fd0 | 1004 | if (target_has_execution) |
f13468d9 | 1005 | { |
af679fd0 PA |
1006 | struct thread_info *tp; |
1007 | ||
1008 | tp = inferior_thread (); | |
fa4cd53f PA |
1009 | if (!err |
1010 | && tp->step_multi && tp->control.stop_step) | |
af679fd0 PA |
1011 | { |
1012 | /* There are more steps to make, and we did stop due to | |
1013 | ending a stepping range. Do another step. */ | |
37d94800 PA |
1014 | step_once (a->skip_subroutines, a->single_inst, |
1015 | a->count - 1, a->thread); | |
af679fd0 PA |
1016 | return; |
1017 | } | |
1018 | tp->step_multi = 0; | |
f107f563 | 1019 | } |
af679fd0 | 1020 | |
fa4cd53f PA |
1021 | /* We either hit an error, or stopped for some reason that is |
1022 | not stepping, or there are no further steps to make. | |
1023 | Cleanup. */ | |
af679fd0 PA |
1024 | if (!a->single_inst || a->skip_subroutines) |
1025 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
1026 | } |
1027 | ||
37d94800 PA |
1028 | /* Do just one step operation. This is useful to implement the 'step |
1029 | n' kind of commands. In case of asynchronous targets, we will have | |
1030 | to set up a continuation to be done after the target stops (after | |
1031 | this one step). For synch targets, the caller handles further | |
1032 | stepping. */ | |
1033 | ||
1034 | static void | |
611c83ae | 1035 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 1036 | { |
edb3359d | 1037 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
1038 | |
1039 | if (count > 0) | |
c906108c | 1040 | { |
4e1c45ea PA |
1041 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
1042 | the longjmp breakpoint was not required. Use the | |
1043 | INFERIOR_PTID thread instead, which is the same thread when | |
1044 | THREAD is set. */ | |
1045 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 1046 | |
70509625 | 1047 | clear_proceed_status (!skip_subroutines); |
edb3359d | 1048 | set_step_frame (); |
c906108c | 1049 | |
c5aa993b | 1050 | if (!single_inst) |
c906108c | 1051 | { |
1641cfcc PA |
1052 | CORE_ADDR pc; |
1053 | ||
edb3359d | 1054 | /* Step at an inlined function behaves like "down". */ |
3f01d0d0 | 1055 | if (!skip_subroutines |
edb3359d DJ |
1056 | && inline_skipped_frames (inferior_ptid)) |
1057 | { | |
09cee04b PA |
1058 | ptid_t resume_ptid; |
1059 | ||
1060 | /* Pretend that we've ran. */ | |
1061 | resume_ptid = user_visible_resume_ptid (1); | |
1062 | set_running (resume_ptid, 1); | |
1063 | ||
edb3359d DJ |
1064 | step_into_inline_frame (inferior_ptid); |
1065 | if (count > 1) | |
1066 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
1067 | else | |
09cee04b PA |
1068 | { |
1069 | /* Pretend that we've stopped. */ | |
1070 | normal_stop (); | |
1071 | ||
1072 | if (target_can_async_p ()) | |
1073 | inferior_event_handler (INF_EXEC_COMPLETE, NULL); | |
1074 | } | |
edb3359d DJ |
1075 | return; |
1076 | } | |
1077 | ||
1641cfcc PA |
1078 | pc = get_frame_pc (frame); |
1079 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
1080 | &tp->control.step_range_start, |
1081 | &tp->control.step_range_end); | |
5fbbeb29 | 1082 | |
c1e36e3e PA |
1083 | tp->control.may_range_step = 1; |
1084 | ||
5fbbeb29 | 1085 | /* If we have no line info, switch to stepi mode. */ |
16c381f0 | 1086 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
c1e36e3e PA |
1087 | { |
1088 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1089 | tp->control.may_range_step = 0; | |
1090 | } | |
16c381f0 | 1091 | else if (tp->control.step_range_end == 0) |
c906108c | 1092 | { |
2c02bd72 | 1093 | const char *name; |
abbb1732 | 1094 | |
1641cfcc | 1095 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1096 | &tp->control.step_range_start, |
1097 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1098 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1099 | |
1100 | target_terminal_ours (); | |
3e43a32a MS |
1101 | printf_filtered (_("Single stepping until exit from function %s," |
1102 | "\nwhich has no line number information.\n"), | |
1103 | name); | |
c906108c SS |
1104 | } |
1105 | } | |
1106 | else | |
1107 | { | |
1108 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1109 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1110 | if (!skip_subroutines) |
1111 | /* It is stepi. | |
1112 | Don't step over function calls, not even to functions lacking | |
1113 | line numbers. */ | |
16c381f0 | 1114 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1115 | } |
1116 | ||
1117 | if (skip_subroutines) | |
16c381f0 | 1118 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1119 | |
95e54da7 | 1120 | tp->step_multi = (count > 1); |
a493e3e2 | 1121 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1122 | |
37d94800 PA |
1123 | /* For async targets, register a continuation to do any |
1124 | additional steps. For sync targets, the caller will handle | |
1125 | further stepping. */ | |
1126 | if (target_can_async_p ()) | |
1127 | { | |
1128 | struct step_1_continuation_args *args; | |
1129 | ||
1130 | args = xmalloc (sizeof (*args)); | |
1131 | args->skip_subroutines = skip_subroutines; | |
1132 | args->single_inst = single_inst; | |
1133 | args->count = count; | |
1134 | args->thread = thread; | |
1135 | ||
1136 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1137 | } | |
c906108c | 1138 | } |
c906108c | 1139 | } |
c2d11a7d | 1140 | |
c906108c SS |
1141 | \f |
1142 | /* Continue program at specified address. */ | |
1143 | ||
1144 | static void | |
fba45db2 | 1145 | jump_command (char *arg, int from_tty) |
c906108c | 1146 | { |
5af949e3 | 1147 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1148 | CORE_ADDR addr; |
c906108c SS |
1149 | struct symtabs_and_lines sals; |
1150 | struct symtab_and_line sal; | |
1151 | struct symbol *fn; | |
1152 | struct symbol *sfn; | |
6c4486e6 PA |
1153 | int async_exec; |
1154 | struct cleanup *args_chain; | |
c5aa993b | 1155 | |
c906108c | 1156 | ERROR_NO_INFERIOR; |
573cda03 | 1157 | ensure_not_tfind_mode (); |
d729566a | 1158 | ensure_valid_thread (); |
94cc34af | 1159 | ensure_not_running (); |
c906108c | 1160 | |
1777feb0 | 1161 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
1162 | arg = strip_bg_char (arg, &async_exec); |
1163 | args_chain = make_cleanup (xfree, arg); | |
43ff13b4 | 1164 | |
8bc2fe48 | 1165 | prepare_execution_command (¤t_target, async_exec); |
43ff13b4 | 1166 | |
c906108c | 1167 | if (!arg) |
e2e0b3e5 | 1168 | error_no_arg (_("starting address")); |
c906108c | 1169 | |
39cf75f7 | 1170 | sals = decode_line_with_last_displayed (arg, DECODE_LINE_FUNFIRSTLINE); |
c906108c SS |
1171 | if (sals.nelts != 1) |
1172 | { | |
8a3fe4f8 | 1173 | error (_("Unreasonable jump request")); |
c906108c SS |
1174 | } |
1175 | ||
1176 | sal = sals.sals[0]; | |
b8c9b27d | 1177 | xfree (sals.sals); |
c906108c | 1178 | |
6c4486e6 PA |
1179 | /* Done with ARGS. */ |
1180 | do_cleanups (args_chain); | |
1181 | ||
c906108c | 1182 | if (sal.symtab == 0 && sal.pc == 0) |
8a3fe4f8 | 1183 | error (_("No source file has been specified.")); |
c906108c | 1184 | |
1777feb0 | 1185 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1186 | |
1777feb0 | 1187 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1188 | fn = get_frame_function (get_current_frame ()); |
1189 | sfn = find_pc_function (sal.pc); | |
1190 | if (fn != NULL && sfn != fn) | |
1191 | { | |
9e2f0ad4 | 1192 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1193 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1194 | { |
8a3fe4f8 | 1195 | error (_("Not confirmed.")); |
c906108c SS |
1196 | /* NOTREACHED */ |
1197 | } | |
1198 | } | |
1199 | ||
c5aa993b | 1200 | if (sfn != NULL) |
c906108c SS |
1201 | { |
1202 | fixup_symbol_section (sfn, 0); | |
e27d198c TT |
1203 | if (section_is_overlay (SYMBOL_OBJ_SECTION (SYMBOL_OBJFILE (sfn), sfn)) && |
1204 | !section_is_mapped (SYMBOL_OBJ_SECTION (SYMBOL_OBJFILE (sfn), sfn))) | |
c906108c | 1205 | { |
3e43a32a MS |
1206 | if (!query (_("WARNING!!! Destination is in " |
1207 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1208 | { |
8a3fe4f8 | 1209 | error (_("Not confirmed.")); |
c906108c SS |
1210 | /* NOTREACHED */ |
1211 | } | |
1212 | } | |
1213 | } | |
1214 | ||
c906108c SS |
1215 | addr = sal.pc; |
1216 | ||
1217 | if (from_tty) | |
1218 | { | |
a3f17187 | 1219 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1220 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1221 | printf_filtered (".\n"); |
1222 | } | |
1223 | ||
70509625 | 1224 | clear_proceed_status (0); |
a493e3e2 | 1225 | proceed (addr, GDB_SIGNAL_0, 0); |
c906108c | 1226 | } |
c906108c | 1227 | \f |
c5aa993b | 1228 | |
1777feb0 | 1229 | /* Go to line or address in current procedure. */ |
6339bfc4 | 1230 | |
c906108c | 1231 | static void |
fba45db2 | 1232 | go_command (char *line_no, int from_tty) |
c906108c | 1233 | { |
c5aa993b | 1234 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1235 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1236 | else |
1237 | { | |
b83266a0 SS |
1238 | tbreak_command (line_no, from_tty); |
1239 | jump_command (line_no, from_tty); | |
c906108c SS |
1240 | } |
1241 | } | |
c906108c | 1242 | \f |
c5aa993b | 1243 | |
c906108c SS |
1244 | /* Continue program giving it specified signal. */ |
1245 | ||
1246 | static void | |
fba45db2 | 1247 | signal_command (char *signum_exp, int from_tty) |
c906108c | 1248 | { |
2ea28649 | 1249 | enum gdb_signal oursig; |
6c4486e6 PA |
1250 | int async_exec; |
1251 | struct cleanup *args_chain; | |
c906108c SS |
1252 | |
1253 | dont_repeat (); /* Too dangerous. */ | |
1254 | ERROR_NO_INFERIOR; | |
573cda03 | 1255 | ensure_not_tfind_mode (); |
d729566a | 1256 | ensure_valid_thread (); |
94cc34af | 1257 | ensure_not_running (); |
c906108c | 1258 | |
32c1e744 | 1259 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
1260 | signum_exp = strip_bg_char (signum_exp, &async_exec); |
1261 | args_chain = make_cleanup (xfree, signum_exp); | |
32c1e744 | 1262 | |
8bc2fe48 | 1263 | prepare_execution_command (¤t_target, async_exec); |
32c1e744 | 1264 | |
c906108c | 1265 | if (!signum_exp) |
e2e0b3e5 | 1266 | error_no_arg (_("signal number")); |
c906108c SS |
1267 | |
1268 | /* It would be even slicker to make signal names be valid expressions, | |
1269 | (the type could be "enum $signal" or some such), then the user could | |
1270 | assign them to convenience variables. */ | |
2ea28649 | 1271 | oursig = gdb_signal_from_name (signum_exp); |
c906108c | 1272 | |
a493e3e2 | 1273 | if (oursig == GDB_SIGNAL_UNKNOWN) |
c906108c SS |
1274 | { |
1275 | /* No, try numeric. */ | |
bb518678 | 1276 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1277 | |
1278 | if (num == 0) | |
a493e3e2 | 1279 | oursig = GDB_SIGNAL_0; |
c906108c | 1280 | else |
2ea28649 | 1281 | oursig = gdb_signal_from_command (num); |
c906108c SS |
1282 | } |
1283 | ||
70509625 PA |
1284 | /* Look for threads other than the current that this command ends up |
1285 | resuming too (due to schedlock off), and warn if they'll get a | |
1286 | signal delivered. "signal 0" is used to suppress a previous | |
1287 | signal, but if the current thread is no longer the one that got | |
1288 | the signal, then the user is potentially suppressing the signal | |
1289 | of the wrong thread. */ | |
1290 | if (!non_stop) | |
1291 | { | |
1292 | struct thread_info *tp; | |
1293 | ptid_t resume_ptid; | |
1294 | int must_confirm = 0; | |
1295 | ||
1296 | /* This indicates what will be resumed. Either a single thread, | |
1297 | a whole process, or all threads of all processes. */ | |
1298 | resume_ptid = user_visible_resume_ptid (0); | |
1299 | ||
1300 | ALL_NON_EXITED_THREADS (tp) | |
1301 | { | |
1302 | if (ptid_equal (tp->ptid, inferior_ptid)) | |
1303 | continue; | |
1304 | if (!ptid_match (tp->ptid, resume_ptid)) | |
1305 | continue; | |
1306 | ||
1307 | if (tp->suspend.stop_signal != GDB_SIGNAL_0 | |
1308 | && signal_pass_state (tp->suspend.stop_signal)) | |
1309 | { | |
1310 | if (!must_confirm) | |
1311 | printf_unfiltered (_("Note:\n")); | |
1312 | printf_unfiltered (_(" Thread %d previously stopped with signal %s, %s.\n"), | |
1313 | tp->num, | |
1314 | gdb_signal_to_name (tp->suspend.stop_signal), | |
1315 | gdb_signal_to_string (tp->suspend.stop_signal)); | |
1316 | must_confirm = 1; | |
1317 | } | |
1318 | } | |
1319 | ||
1320 | if (must_confirm | |
1321 | && !query (_("Continuing thread %d (the current thread) with specified signal will\n" | |
1322 | "still deliver the signals noted above to their respective threads.\n" | |
1323 | "Continue anyway? "), | |
1324 | inferior_thread ()->num)) | |
1325 | error (_("Not confirmed.")); | |
1326 | } | |
1327 | ||
c906108c SS |
1328 | if (from_tty) |
1329 | { | |
a493e3e2 | 1330 | if (oursig == GDB_SIGNAL_0) |
a3f17187 | 1331 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1332 | else |
a3f17187 | 1333 | printf_filtered (_("Continuing with signal %s.\n"), |
2ea28649 | 1334 | gdb_signal_to_name (oursig)); |
c906108c SS |
1335 | } |
1336 | ||
70509625 | 1337 | clear_proceed_status (0); |
a12cc160 | 1338 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1339 | } |
1340 | ||
81219e53 DE |
1341 | /* Queue a signal to be delivered to the current thread. */ |
1342 | ||
1343 | static void | |
1344 | queue_signal_command (char *signum_exp, int from_tty) | |
1345 | { | |
1346 | enum gdb_signal oursig; | |
1347 | struct thread_info *tp; | |
1348 | ||
1349 | ERROR_NO_INFERIOR; | |
1350 | ensure_not_tfind_mode (); | |
1351 | ensure_valid_thread (); | |
1352 | ensure_not_running (); | |
1353 | ||
1354 | if (signum_exp == NULL) | |
1355 | error_no_arg (_("signal number")); | |
1356 | ||
1357 | /* It would be even slicker to make signal names be valid expressions, | |
1358 | (the type could be "enum $signal" or some such), then the user could | |
1359 | assign them to convenience variables. */ | |
1360 | oursig = gdb_signal_from_name (signum_exp); | |
1361 | ||
1362 | if (oursig == GDB_SIGNAL_UNKNOWN) | |
1363 | { | |
1364 | /* No, try numeric. */ | |
1365 | int num = parse_and_eval_long (signum_exp); | |
1366 | ||
1367 | if (num == 0) | |
1368 | oursig = GDB_SIGNAL_0; | |
1369 | else | |
1370 | oursig = gdb_signal_from_command (num); | |
1371 | } | |
1372 | ||
1373 | if (oursig != GDB_SIGNAL_0 | |
1374 | && !signal_pass_state (oursig)) | |
1375 | error (_("Signal handling set to not pass this signal to the program.")); | |
1376 | ||
1377 | tp = inferior_thread (); | |
1378 | tp->suspend.stop_signal = oursig; | |
1379 | } | |
1380 | ||
fa4cd53f PA |
1381 | /* Continuation args to be passed to the "until" command |
1382 | continuation. */ | |
1383 | struct until_next_continuation_args | |
1384 | { | |
1385 | /* The thread that was current when the command was executed. */ | |
1386 | int thread; | |
1387 | }; | |
1388 | ||
186c406b TT |
1389 | /* A continuation callback for until_next_command. */ |
1390 | ||
1391 | static void | |
fa4cd53f | 1392 | until_next_continuation (void *arg, int err) |
186c406b | 1393 | { |
fa4cd53f | 1394 | struct until_next_continuation_args *a = arg; |
186c406b | 1395 | |
fa4cd53f | 1396 | delete_longjmp_breakpoint (a->thread); |
186c406b TT |
1397 | } |
1398 | ||
c906108c SS |
1399 | /* Proceed until we reach a different source line with pc greater than |
1400 | our current one or exit the function. We skip calls in both cases. | |
1401 | ||
1402 | Note that eventually this command should probably be changed so | |
1403 | that only source lines are printed out when we hit the breakpoint | |
1404 | we set. This may involve changes to wait_for_inferior and the | |
1405 | proceed status code. */ | |
1406 | ||
c906108c | 1407 | static void |
fba45db2 | 1408 | until_next_command (int from_tty) |
c906108c SS |
1409 | { |
1410 | struct frame_info *frame; | |
1411 | CORE_ADDR pc; | |
1412 | struct symbol *func; | |
1413 | struct symtab_and_line sal; | |
4e1c45ea | 1414 | struct thread_info *tp = inferior_thread (); |
186c406b TT |
1415 | int thread = tp->num; |
1416 | struct cleanup *old_chain; | |
c5aa993b | 1417 | |
70509625 | 1418 | clear_proceed_status (0); |
edb3359d | 1419 | set_step_frame (); |
c906108c SS |
1420 | |
1421 | frame = get_current_frame (); | |
1422 | ||
1423 | /* Step until either exited from this function or greater | |
1424 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1425 | not). */ |
c906108c | 1426 | |
1c7819ef | 1427 | pc = get_frame_pc (frame); |
c906108c | 1428 | func = find_pc_function (pc); |
c5aa993b | 1429 | |
c906108c SS |
1430 | if (!func) |
1431 | { | |
7cbd4a93 | 1432 | struct bound_minimal_symbol msymbol = lookup_minimal_symbol_by_pc (pc); |
c5aa993b | 1433 | |
7cbd4a93 | 1434 | if (msymbol.minsym == NULL) |
8a3fe4f8 | 1435 | error (_("Execution is not within a known function.")); |
c5aa993b | 1436 | |
77e371c0 | 1437 | tp->control.step_range_start = BMSYMBOL_VALUE_ADDRESS (msymbol); |
7e09a223 YQ |
1438 | /* The upper-bound of step_range is exclusive. In order to make PC |
1439 | within the range, set the step_range_end with PC + 1. */ | |
1440 | tp->control.step_range_end = pc + 1; | |
c906108c SS |
1441 | } |
1442 | else | |
1443 | { | |
1444 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1445 | |
16c381f0 JK |
1446 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1447 | tp->control.step_range_end = sal.end; | |
c906108c | 1448 | } |
c1e36e3e | 1449 | tp->control.may_range_step = 1; |
c5aa993b | 1450 | |
16c381f0 | 1451 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1452 | |
af679fd0 | 1453 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1454 | |
186c406b TT |
1455 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1456 | old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1457 | ||
a493e3e2 | 1458 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
186c406b TT |
1459 | |
1460 | if (target_can_async_p () && is_running (inferior_ptid)) | |
1461 | { | |
fa4cd53f PA |
1462 | struct until_next_continuation_args *cont_args; |
1463 | ||
186c406b | 1464 | discard_cleanups (old_chain); |
fa4cd53f PA |
1465 | cont_args = XNEW (struct until_next_continuation_args); |
1466 | cont_args->thread = inferior_thread ()->num; | |
1467 | ||
1468 | add_continuation (tp, until_next_continuation, cont_args, xfree); | |
186c406b TT |
1469 | } |
1470 | else | |
1471 | do_cleanups (old_chain); | |
c906108c SS |
1472 | } |
1473 | ||
c5aa993b | 1474 | static void |
fba45db2 | 1475 | until_command (char *arg, int from_tty) |
c906108c | 1476 | { |
6c4486e6 PA |
1477 | int async_exec; |
1478 | struct cleanup *args_chain; | |
43ff13b4 | 1479 | |
4247603b | 1480 | ERROR_NO_INFERIOR; |
573cda03 | 1481 | ensure_not_tfind_mode (); |
4247603b PA |
1482 | ensure_valid_thread (); |
1483 | ensure_not_running (); | |
573cda03 | 1484 | |
1777feb0 | 1485 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
1486 | arg = strip_bg_char (arg, &async_exec); |
1487 | args_chain = make_cleanup (xfree, arg); | |
43ff13b4 | 1488 | |
8bc2fe48 | 1489 | prepare_execution_command (¤t_target, async_exec); |
43ff13b4 | 1490 | |
c906108c | 1491 | if (arg) |
ae66c1fc | 1492 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1493 | else |
1494 | until_next_command (from_tty); | |
6c4486e6 PA |
1495 | |
1496 | /* Done with ARGS. */ | |
1497 | do_cleanups (args_chain); | |
c906108c | 1498 | } |
ae66c1fc EZ |
1499 | |
1500 | static void | |
1501 | advance_command (char *arg, int from_tty) | |
1502 | { | |
6c4486e6 PA |
1503 | int async_exec; |
1504 | struct cleanup *args_chain; | |
ae66c1fc | 1505 | |
4247603b | 1506 | ERROR_NO_INFERIOR; |
573cda03 | 1507 | ensure_not_tfind_mode (); |
4247603b PA |
1508 | ensure_valid_thread (); |
1509 | ensure_not_running (); | |
573cda03 | 1510 | |
ae66c1fc | 1511 | if (arg == NULL) |
e2e0b3e5 | 1512 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1513 | |
1514 | /* Find out whether we must run in the background. */ | |
6c4486e6 PA |
1515 | arg = strip_bg_char (arg, &async_exec); |
1516 | args_chain = make_cleanup (xfree, arg); | |
ae66c1fc | 1517 | |
8bc2fe48 | 1518 | prepare_execution_command (¤t_target, async_exec); |
ae66c1fc EZ |
1519 | |
1520 | until_break_command (arg, from_tty, 1); | |
6c4486e6 PA |
1521 | |
1522 | /* Done with ARGS. */ | |
1523 | do_cleanups (args_chain); | |
ae66c1fc | 1524 | } |
c906108c | 1525 | \f |
cc72b2a2 KP |
1526 | /* Return the value of the result of a function at the end of a 'finish' |
1527 | command/BP. */ | |
f941662f | 1528 | |
cc72b2a2 | 1529 | struct value * |
6a3a010b | 1530 | get_return_value (struct value *function, struct type *value_type) |
11cf8741 | 1531 | { |
cc72b2a2 KP |
1532 | struct regcache *stop_regs = stop_registers; |
1533 | struct gdbarch *gdbarch; | |
44e5158b | 1534 | struct value *value; |
cc72b2a2 KP |
1535 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
1536 | ||
1537 | /* If stop_registers were not saved, use the current registers. */ | |
1538 | if (!stop_regs) | |
1539 | { | |
1540 | stop_regs = regcache_dup (get_current_regcache ()); | |
faab9922 | 1541 | make_cleanup_regcache_xfree (stop_regs); |
cc72b2a2 KP |
1542 | } |
1543 | ||
1544 | gdbarch = get_regcache_arch (stop_regs); | |
44e5158b | 1545 | |
181fc57c | 1546 | CHECK_TYPEDEF (value_type); |
44e5158b | 1547 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1548 | |
92ad9cd9 AC |
1549 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1550 | call, it's possible (with no help from the architecture vector) | |
1551 | to locate and return/print a "struct return" value. This is just | |
7a9dd1b2 | 1552 | a more complicated case of what is already being done in the |
92ad9cd9 AC |
1553 | inferior function call code. In fact, when inferior function |
1554 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1555 | |
6a3a010b | 1556 | switch (gdbarch_return_value (gdbarch, function, value_type, |
c055b101 | 1557 | NULL, NULL, NULL)) |
44e5158b | 1558 | { |
750eb019 AC |
1559 | case RETURN_VALUE_REGISTER_CONVENTION: |
1560 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1561 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1562 | value = allocate_value (value_type); |
6a3a010b | 1563 | gdbarch_return_value (gdbarch, function, value_type, stop_regs, |
990a07ab | 1564 | value_contents_raw (value), NULL); |
750eb019 AC |
1565 | break; |
1566 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1567 | value = NULL; | |
1568 | break; | |
1569 | default: | |
e2e0b3e5 | 1570 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1571 | } |
bb472c1e | 1572 | |
cc72b2a2 KP |
1573 | do_cleanups (cleanup); |
1574 | ||
1575 | return value; | |
1576 | } | |
1577 | ||
1578 | /* Print the result of a function at the end of a 'finish' command. */ | |
1579 | ||
1580 | static void | |
6a3a010b | 1581 | print_return_value (struct value *function, struct type *value_type) |
cc72b2a2 | 1582 | { |
6a3a010b | 1583 | struct value *value = get_return_value (function, value_type); |
cc72b2a2 KP |
1584 | struct ui_out *uiout = current_uiout; |
1585 | ||
31db7b6c MK |
1586 | if (value) |
1587 | { | |
79a45b7d | 1588 | struct value_print_options opts; |
f99d8bf4 PA |
1589 | struct ui_file *stb; |
1590 | struct cleanup *old_chain; | |
79a45b7d | 1591 | |
31db7b6c | 1592 | /* Print it. */ |
f99d8bf4 PA |
1593 | stb = mem_fileopen (); |
1594 | old_chain = make_cleanup_ui_file_delete (stb); | |
31db7b6c MK |
1595 | ui_out_text (uiout, "Value returned is "); |
1596 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1597 | record_latest_value (value)); | |
1598 | ui_out_text (uiout, " = "); | |
2a998fc0 | 1599 | get_no_prettyformat_print_options (&opts); |
f99d8bf4 | 1600 | value_print (value, stb, &opts); |
31db7b6c MK |
1601 | ui_out_field_stream (uiout, "return-value", stb); |
1602 | ui_out_text (uiout, "\n"); | |
1d751abe | 1603 | do_cleanups (old_chain); |
31db7b6c MK |
1604 | } |
1605 | else | |
1606 | { | |
1607 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1608 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1609 | ui_out_text (uiout, "."); | |
1610 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1611 | } |
11cf8741 JM |
1612 | } |
1613 | ||
43ff13b4 | 1614 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1615 | has stopped. In asynchronous mode, we wait for the target to stop |
1616 | in the call to poll or select in the event loop, so it is | |
1617 | impossible to do all the stuff as part of the finish_command | |
1618 | function itself. The only chance we have to complete this command | |
1619 | is in fetch_inferior_event, which is called by the event loop as | |
fa4cd53f | 1620 | soon as it detects that the target has stopped. */ |
f941662f | 1621 | |
bfec99b2 | 1622 | struct finish_command_continuation_args |
43ff13b4 | 1623 | { |
fa4cd53f PA |
1624 | /* The thread that as current when the command was executed. */ |
1625 | int thread; | |
43ff13b4 | 1626 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1627 | struct symbol *function; |
1628 | }; | |
c5aa993b | 1629 | |
bfec99b2 | 1630 | static void |
fa4cd53f | 1631 | finish_command_continuation (void *arg, int err) |
bfec99b2 PA |
1632 | { |
1633 | struct finish_command_continuation_args *a = arg; | |
347bddb7 | 1634 | |
fa4cd53f | 1635 | if (!err) |
43ff13b4 | 1636 | { |
fa4cd53f PA |
1637 | struct thread_info *tp = NULL; |
1638 | bpstat bs = NULL; | |
bfec99b2 | 1639 | |
fa4cd53f PA |
1640 | if (!ptid_equal (inferior_ptid, null_ptid) |
1641 | && target_has_execution | |
1642 | && is_stopped (inferior_ptid)) | |
1643 | { | |
1644 | tp = inferior_thread (); | |
1645 | bs = tp->control.stop_bpstat; | |
1646 | } | |
f5871ec0 | 1647 | |
fa4cd53f PA |
1648 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL |
1649 | && a->function != NULL) | |
40c549d6 | 1650 | { |
fa4cd53f PA |
1651 | struct type *value_type; |
1652 | ||
1653 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); | |
1654 | if (!value_type) | |
1655 | internal_error (__FILE__, __LINE__, | |
1656 | _("finish_command: function has no target type")); | |
40c549d6 | 1657 | |
fa4cd53f | 1658 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 | 1659 | { |
fa4cd53f | 1660 | volatile struct gdb_exception ex; |
6a3a010b | 1661 | struct value *func; |
fa4cd53f | 1662 | |
6a3a010b | 1663 | func = read_var_value (a->function, get_current_frame ()); |
fa4cd53f PA |
1664 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1665 | { | |
1666 | /* print_return_value can throw an exception in some | |
1667 | circumstances. We need to catch this so that we still | |
1668 | delete the breakpoint. */ | |
6a3a010b | 1669 | print_return_value (func, value_type); |
fa4cd53f PA |
1670 | } |
1671 | if (ex.reason < 0) | |
1672 | exception_print (gdb_stdout, ex); | |
40c549d6 | 1673 | } |
40c549d6 | 1674 | } |
fa4cd53f PA |
1675 | |
1676 | /* We suppress normal call of normal_stop observer and do it | |
1677 | here so that the *stopped notification includes the return | |
1678 | value. */ | |
1679 | if (bs != NULL && tp->control.proceed_to_finish) | |
1680 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
43ff13b4 | 1681 | } |
f941662f | 1682 | |
bfec99b2 | 1683 | delete_breakpoint (a->breakpoint); |
fa4cd53f | 1684 | delete_longjmp_breakpoint (a->thread); |
43ff13b4 JM |
1685 | } |
1686 | ||
604ead4a PA |
1687 | static void |
1688 | finish_command_continuation_free_arg (void *arg) | |
1689 | { | |
604ead4a PA |
1690 | xfree (arg); |
1691 | } | |
1692 | ||
b2175913 MS |
1693 | /* finish_backward -- helper function for finish_command. */ |
1694 | ||
1695 | static void | |
1696 | finish_backward (struct symbol *function) | |
1697 | { | |
1698 | struct symtab_and_line sal; | |
1699 | struct thread_info *tp = inferior_thread (); | |
1c7819ef | 1700 | CORE_ADDR pc; |
b2175913 | 1701 | CORE_ADDR func_addr; |
b2175913 | 1702 | |
1c7819ef PA |
1703 | pc = get_frame_pc (get_current_frame ()); |
1704 | ||
1705 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
1f267ae3 | 1706 | error (_("Cannot find bounds of current function")); |
b2175913 MS |
1707 | |
1708 | sal = find_pc_line (func_addr, 0); | |
1709 | ||
9da8c2a0 | 1710 | tp->control.proceed_to_finish = 1; |
b2175913 MS |
1711 | /* Special case: if we're sitting at the function entry point, |
1712 | then all we need to do is take a reverse singlestep. We | |
1713 | don't need to set a breakpoint, and indeed it would do us | |
1714 | no good to do so. | |
1715 | ||
1716 | Note that this can only happen at frame #0, since there's | |
1717 | no way that a function up the stack can have a return address | |
1718 | that's equal to its entry point. */ | |
1719 | ||
1c7819ef | 1720 | if (sal.pc != pc) |
b2175913 | 1721 | { |
a6d9a66e UW |
1722 | struct frame_info *frame = get_selected_frame (NULL); |
1723 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
9da8c2a0 PA |
1724 | struct symtab_and_line sr_sal; |
1725 | ||
1726 | /* Set a step-resume at the function's entry point. Once that's | |
1727 | hit, we'll do one more step backwards. */ | |
1728 | init_sal (&sr_sal); | |
1729 | sr_sal.pc = sal.pc; | |
1730 | sr_sal.pspace = get_frame_program_space (frame); | |
1731 | insert_step_resume_breakpoint_at_sal (gdbarch, | |
1732 | sr_sal, null_frame_id); | |
a6d9a66e | 1733 | |
a493e3e2 | 1734 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1735 | } |
1736 | else | |
b2175913 | 1737 | { |
9da8c2a0 PA |
1738 | /* We're almost there -- we just need to back up by one more |
1739 | single-step. */ | |
16c381f0 | 1740 | tp->control.step_range_start = tp->control.step_range_end = 1; |
a493e3e2 | 1741 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
b2175913 | 1742 | } |
b2175913 MS |
1743 | } |
1744 | ||
1745 | /* finish_forward -- helper function for finish_command. */ | |
1746 | ||
1747 | static void | |
1748 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1749 | { | |
def166f6 | 1750 | struct frame_id frame_id = get_frame_id (frame); |
a6d9a66e | 1751 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1752 | struct symtab_and_line sal; |
1753 | struct thread_info *tp = inferior_thread (); | |
1754 | struct breakpoint *breakpoint; | |
1755 | struct cleanup *old_chain; | |
1756 | struct finish_command_continuation_args *cargs; | |
186c406b | 1757 | int thread = tp->num; |
b2175913 MS |
1758 | |
1759 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1760 | sal.pc = get_frame_pc (frame); | |
1761 | ||
a6d9a66e UW |
1762 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1763 | get_stack_frame_id (frame), | |
b2175913 MS |
1764 | bp_finish); |
1765 | ||
c70a6932 JK |
1766 | /* set_momentary_breakpoint invalidates FRAME. */ |
1767 | frame = NULL; | |
1768 | ||
b2175913 MS |
1769 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
1770 | ||
def166f6 | 1771 | set_longjmp_breakpoint (tp, frame_id); |
186c406b TT |
1772 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
1773 | ||
16c381f0 JK |
1774 | /* We want stop_registers, please... */ |
1775 | tp->control.proceed_to_finish = 1; | |
b2175913 MS |
1776 | cargs = xmalloc (sizeof (*cargs)); |
1777 | ||
fa4cd53f | 1778 | cargs->thread = thread; |
b2175913 MS |
1779 | cargs->breakpoint = breakpoint; |
1780 | cargs->function = function; | |
1781 | add_continuation (tp, finish_command_continuation, cargs, | |
1782 | finish_command_continuation_free_arg); | |
a493e3e2 | 1783 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1784 | |
1785 | discard_cleanups (old_chain); | |
1786 | if (!target_can_async_p ()) | |
fa4cd53f | 1787 | do_all_continuations (0); |
b2175913 MS |
1788 | } |
1789 | ||
f941662f MK |
1790 | /* "finish": Set a temporary breakpoint at the place the selected |
1791 | frame will return to, then continue. */ | |
c906108c SS |
1792 | |
1793 | static void | |
fba45db2 | 1794 | finish_command (char *arg, int from_tty) |
c906108c | 1795 | { |
52f0bd74 AC |
1796 | struct frame_info *frame; |
1797 | struct symbol *function; | |
6c4486e6 PA |
1798 | int async_exec; |
1799 | struct cleanup *args_chain; | |
43ff13b4 | 1800 | |
4247603b | 1801 | ERROR_NO_INFERIOR; |
573cda03 | 1802 | ensure_not_tfind_mode (); |
4247603b PA |
1803 | ensure_valid_thread (); |
1804 | ensure_not_running (); | |
573cda03 | 1805 | |
f941662f | 1806 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
1807 | arg = strip_bg_char (arg, &async_exec); |
1808 | args_chain = make_cleanup (xfree, arg); | |
43ff13b4 | 1809 | |
8bc2fe48 | 1810 | prepare_execution_command (¤t_target, async_exec); |
c906108c SS |
1811 | |
1812 | if (arg) | |
8a3fe4f8 | 1813 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1814 | |
6c4486e6 PA |
1815 | /* Done with ARGS. */ |
1816 | do_cleanups (args_chain); | |
1817 | ||
206415a3 | 1818 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1819 | if (frame == 0) |
8a3fe4f8 | 1820 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c | 1821 | |
70509625 | 1822 | clear_proceed_status (0); |
c906108c | 1823 | |
edb3359d DJ |
1824 | /* Finishing from an inline frame is completely different. We don't |
1825 | try to show the "return value" - no way to locate it. So we do | |
1826 | not need a completion. */ | |
1827 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1828 | == INLINE_FRAME) | |
1829 | { | |
1830 | /* Claim we are stepping in the calling frame. An empty step | |
1831 | range means that we will stop once we aren't in a function | |
1832 | called by that frame. We don't use the magic "1" value for | |
1833 | step_range_end, because then infrun will think this is nexti, | |
1834 | and not step over the rest of this inlined function call. */ | |
1835 | struct thread_info *tp = inferior_thread (); | |
1836 | struct symtab_and_line empty_sal; | |
abbb1732 | 1837 | |
edb3359d DJ |
1838 | init_sal (&empty_sal); |
1839 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1840 | tp->control.step_range_start = get_frame_pc (frame); |
1841 | tp->control.step_range_end = tp->control.step_range_start; | |
1842 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1843 | |
1844 | /* Print info on the selected frame, including level number but not | |
1845 | source. */ | |
1846 | if (from_tty) | |
1847 | { | |
1848 | printf_filtered (_("Run till exit from ")); | |
08d72866 | 1849 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); |
edb3359d DJ |
1850 | } |
1851 | ||
a493e3e2 | 1852 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
edb3359d DJ |
1853 | return; |
1854 | } | |
1855 | ||
1ab3b62c JK |
1856 | /* Ignore TAILCALL_FRAME type frames, they were executed already before |
1857 | entering THISFRAME. */ | |
1858 | while (get_frame_type (frame) == TAILCALL_FRAME) | |
1859 | frame = get_prev_frame (frame); | |
1860 | ||
c906108c SS |
1861 | /* Find the function we will return from. */ |
1862 | ||
206415a3 | 1863 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1864 | |
f941662f MK |
1865 | /* Print info on the selected frame, including level number but not |
1866 | source. */ | |
c906108c SS |
1867 | if (from_tty) |
1868 | { | |
b2175913 MS |
1869 | if (execution_direction == EXEC_REVERSE) |
1870 | printf_filtered (_("Run back to call of ")); | |
1871 | else | |
1872 | printf_filtered (_("Run till exit from ")); | |
1873 | ||
08d72866 | 1874 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); |
c906108c SS |
1875 | } |
1876 | ||
b2175913 MS |
1877 | if (execution_direction == EXEC_REVERSE) |
1878 | finish_backward (function); | |
1879 | else | |
1880 | finish_forward (function, frame); | |
c906108c SS |
1881 | } |
1882 | \f | |
f941662f | 1883 | |
c906108c | 1884 | static void |
fba45db2 | 1885 | program_info (char *args, int from_tty) |
c906108c | 1886 | { |
347bddb7 PA |
1887 | bpstat bs; |
1888 | int num, stat; | |
1889 | struct thread_info *tp; | |
1890 | ptid_t ptid; | |
c5aa993b | 1891 | |
c906108c SS |
1892 | if (!target_has_execution) |
1893 | { | |
a3f17187 | 1894 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1895 | return; |
1896 | } | |
1897 | ||
347bddb7 PA |
1898 | if (non_stop) |
1899 | ptid = inferior_ptid; | |
1900 | else | |
1901 | { | |
1902 | struct target_waitstatus ws; | |
abbb1732 | 1903 | |
347bddb7 PA |
1904 | get_last_target_status (&ptid, &ws); |
1905 | } | |
1906 | ||
1907 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1908 | error (_("Invalid selected thread.")); | |
1909 | else if (is_running (ptid)) | |
1910 | error (_("Selected thread is running.")); | |
1911 | ||
e09875d4 | 1912 | tp = find_thread_ptid (ptid); |
16c381f0 | 1913 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1914 | stat = bpstat_num (&bs, &num); |
1915 | ||
c906108c | 1916 | target_files_info (); |
5af949e3 | 1917 | printf_filtered (_("Program stopped at %s.\n"), |
f5656ead | 1918 | paddress (target_gdbarch (), stop_pc)); |
16c381f0 | 1919 | if (tp->control.stop_step) |
a3f17187 | 1920 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1921 | else if (stat != 0) |
c906108c SS |
1922 | { |
1923 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1924 | isn't as strange as it seems. */ |
8671a17b | 1925 | while (stat != 0) |
c906108c | 1926 | { |
8671a17b | 1927 | if (stat < 0) |
c906108c | 1928 | { |
3e43a32a MS |
1929 | printf_filtered (_("It stopped at a breakpoint " |
1930 | "that has since been deleted.\n")); | |
c906108c SS |
1931 | } |
1932 | else | |
a3f17187 | 1933 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1934 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1935 | } |
1936 | } | |
a493e3e2 | 1937 | else if (tp->suspend.stop_signal != GDB_SIGNAL_0) |
c906108c | 1938 | { |
a3f17187 | 1939 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2ea28649 PA |
1940 | gdb_signal_to_name (tp->suspend.stop_signal), |
1941 | gdb_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1942 | } |
1943 | ||
0d41ba00 | 1944 | if (from_tty) |
c906108c | 1945 | { |
3e43a32a MS |
1946 | printf_filtered (_("Type \"info stack\" or \"info " |
1947 | "registers\" for more information.\n")); | |
c906108c SS |
1948 | } |
1949 | } | |
1950 | \f | |
1951 | static void | |
fba45db2 | 1952 | environment_info (char *var, int from_tty) |
c906108c SS |
1953 | { |
1954 | if (var) | |
1955 | { | |
3f81c18a | 1956 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1957 | |
c906108c SS |
1958 | if (val) |
1959 | { | |
1960 | puts_filtered (var); | |
1961 | puts_filtered (" = "); | |
1962 | puts_filtered (val); | |
1963 | puts_filtered ("\n"); | |
1964 | } | |
1965 | else | |
1966 | { | |
1967 | puts_filtered ("Environment variable \""); | |
1968 | puts_filtered (var); | |
1969 | puts_filtered ("\" not defined.\n"); | |
1970 | } | |
1971 | } | |
1972 | else | |
1973 | { | |
3f81c18a | 1974 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1975 | |
c906108c SS |
1976 | while (*vector) |
1977 | { | |
1978 | puts_filtered (*vector++); | |
1979 | puts_filtered ("\n"); | |
1980 | } | |
1981 | } | |
1982 | } | |
1983 | ||
1984 | static void | |
fba45db2 | 1985 | set_environment_command (char *arg, int from_tty) |
c906108c | 1986 | { |
52f0bd74 | 1987 | char *p, *val, *var; |
c906108c SS |
1988 | int nullset = 0; |
1989 | ||
1990 | if (arg == 0) | |
e2e0b3e5 | 1991 | error_no_arg (_("environment variable and value")); |
c906108c | 1992 | |
1777feb0 | 1993 | /* Find seperation between variable name and value. */ |
c906108c SS |
1994 | p = (char *) strchr (arg, '='); |
1995 | val = (char *) strchr (arg, ' '); | |
1996 | ||
1997 | if (p != 0 && val != 0) | |
1998 | { | |
1999 | /* We have both a space and an equals. If the space is before the | |
c5aa993b | 2000 | equals, walk forward over the spaces til we see a nonspace |
1777feb0 | 2001 | (possibly the equals). */ |
c906108c SS |
2002 | if (p > val) |
2003 | while (*val == ' ') | |
2004 | val++; | |
2005 | ||
2006 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 2007 | take the char following the spaces. */ |
c906108c SS |
2008 | if (p > val) |
2009 | p = val - 1; | |
2010 | } | |
2011 | else if (val != 0 && p == 0) | |
2012 | p = val; | |
2013 | ||
2014 | if (p == arg) | |
e2e0b3e5 | 2015 | error_no_arg (_("environment variable to set")); |
c906108c SS |
2016 | |
2017 | if (p == 0 || p[1] == 0) | |
2018 | { | |
2019 | nullset = 1; | |
2020 | if (p == 0) | |
1777feb0 | 2021 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
2022 | } |
2023 | else | |
2024 | { | |
1777feb0 | 2025 | /* Not setting variable value to null. */ |
c906108c SS |
2026 | val = p + 1; |
2027 | while (*val == ' ' || *val == '\t') | |
2028 | val++; | |
2029 | } | |
2030 | ||
c5aa993b JM |
2031 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
2032 | p--; | |
c906108c SS |
2033 | |
2034 | var = savestring (arg, p - arg); | |
2035 | if (nullset) | |
2036 | { | |
3e43a32a MS |
2037 | printf_filtered (_("Setting environment variable " |
2038 | "\"%s\" to null value.\n"), | |
a3f17187 | 2039 | var); |
3f81c18a | 2040 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
2041 | } |
2042 | else | |
3f81c18a | 2043 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 2044 | xfree (var); |
c906108c SS |
2045 | } |
2046 | ||
2047 | static void | |
fba45db2 | 2048 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
2049 | { |
2050 | if (var == 0) | |
2051 | { | |
2052 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 2053 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 2054 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 2055 | { |
3f81c18a VP |
2056 | free_environ (current_inferior ()->environment); |
2057 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
2058 | } |
2059 | } | |
2060 | else | |
3f81c18a | 2061 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
2062 | } |
2063 | ||
1777feb0 | 2064 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
2065 | |
2066 | static const char path_var_name[] = "PATH"; | |
2067 | ||
c906108c | 2068 | static void |
fba45db2 | 2069 | path_info (char *args, int from_tty) |
c906108c SS |
2070 | { |
2071 | puts_filtered ("Executable and object file path: "); | |
3e43a32a MS |
2072 | puts_filtered (get_in_environ (current_inferior ()->environment, |
2073 | path_var_name)); | |
c906108c SS |
2074 | puts_filtered ("\n"); |
2075 | } | |
2076 | ||
2077 | /* Add zero or more directories to the front of the execution path. */ | |
2078 | ||
2079 | static void | |
fba45db2 | 2080 | path_command (char *dirname, int from_tty) |
c906108c SS |
2081 | { |
2082 | char *exec_path; | |
2083 | char *env; | |
abbb1732 | 2084 | |
c906108c | 2085 | dont_repeat (); |
3f81c18a | 2086 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
1777feb0 | 2087 | /* Can be null if path is not set. */ |
c906108c SS |
2088 | if (!env) |
2089 | env = ""; | |
4fcf66da | 2090 | exec_path = xstrdup (env); |
c906108c | 2091 | mod_path (dirname, &exec_path); |
3f81c18a | 2092 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 2093 | xfree (exec_path); |
c906108c | 2094 | if (from_tty) |
c5aa993b | 2095 | path_info ((char *) NULL, from_tty); |
c906108c | 2096 | } |
c906108c | 2097 | \f |
c5aa993b | 2098 | |
1292279a PA |
2099 | /* Print out the register NAME with value VAL, to FILE, in the default |
2100 | fashion. */ | |
2101 | ||
2102 | static void | |
2103 | default_print_one_register_info (struct ui_file *file, | |
2104 | const char *name, | |
2105 | struct value *val) | |
2106 | { | |
2107 | struct type *regtype = value_type (val); | |
f69d9aef | 2108 | int print_raw_format; |
1292279a PA |
2109 | |
2110 | fputs_filtered (name, file); | |
2111 | print_spaces_filtered (15 - strlen (name), file); | |
2112 | ||
f69d9aef AB |
2113 | print_raw_format = (value_entirely_available (val) |
2114 | && !value_optimized_out (val)); | |
1292279a PA |
2115 | |
2116 | /* If virtual format is floating, print it that way, and in raw | |
2117 | hex. */ | |
2118 | if (TYPE_CODE (regtype) == TYPE_CODE_FLT | |
2119 | || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT) | |
2120 | { | |
2121 | int j; | |
2122 | struct value_print_options opts; | |
2123 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
2124 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (regtype)); | |
2125 | ||
2126 | get_user_print_options (&opts); | |
2127 | opts.deref_ref = 1; | |
2128 | ||
2129 | val_print (regtype, | |
2130 | value_contents_for_printing (val), | |
2131 | value_embedded_offset (val), 0, | |
2132 | file, 0, val, &opts, current_language); | |
2133 | ||
f69d9aef AB |
2134 | if (print_raw_format) |
2135 | { | |
2136 | fprintf_filtered (file, "\t(raw "); | |
2137 | print_hex_chars (file, valaddr, TYPE_LENGTH (regtype), byte_order); | |
2138 | fprintf_filtered (file, ")"); | |
2139 | } | |
1292279a PA |
2140 | } |
2141 | else | |
2142 | { | |
2143 | struct value_print_options opts; | |
2144 | ||
2145 | /* Print the register in hex. */ | |
2146 | get_formatted_print_options (&opts, 'x'); | |
2147 | opts.deref_ref = 1; | |
2148 | val_print (regtype, | |
2149 | value_contents_for_printing (val), | |
2150 | value_embedded_offset (val), 0, | |
2151 | file, 0, val, &opts, current_language); | |
2152 | /* If not a vector register, print it also according to its | |
2153 | natural format. */ | |
f69d9aef | 2154 | if (print_raw_format && TYPE_VECTOR (regtype) == 0) |
1292279a PA |
2155 | { |
2156 | get_user_print_options (&opts); | |
2157 | opts.deref_ref = 1; | |
2158 | fprintf_filtered (file, "\t"); | |
2159 | val_print (regtype, | |
2160 | value_contents_for_printing (val), | |
2161 | value_embedded_offset (val), 0, | |
2162 | file, 0, val, &opts, current_language); | |
2163 | } | |
2164 | } | |
2165 | ||
2166 | fprintf_filtered (file, "\n"); | |
2167 | } | |
2168 | ||
1777feb0 | 2169 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
2170 | registers (print_all == 1) or all non-float and non-vector |
2171 | registers (print_all == 0). | |
c906108c SS |
2172 | |
2173 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
2174 | register(s) one per line is good enough. If a different format is |
2175 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
2176 | regs), or there is an existing convention for showing all the | |
2177 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
2178 | provide that format. */ | |
c906108c | 2179 | |
666e11c5 | 2180 | void |
0ab7a791 AC |
2181 | default_print_registers_info (struct gdbarch *gdbarch, |
2182 | struct ui_file *file, | |
2183 | struct frame_info *frame, | |
2184 | int regnum, int print_all) | |
c906108c | 2185 | { |
0ab7a791 | 2186 | int i; |
a4bd449d UW |
2187 | const int numregs = gdbarch_num_regs (gdbarch) |
2188 | + gdbarch_num_pseudo_regs (gdbarch); | |
0ab7a791 | 2189 | |
c906108c SS |
2190 | for (i = 0; i < numregs; i++) |
2191 | { | |
4782dc19 AC |
2192 | /* Decide between printing all regs, non-float / vector regs, or |
2193 | specific reg. */ | |
c5aa993b JM |
2194 | if (regnum == -1) |
2195 | { | |
f9418c0f | 2196 | if (print_all) |
4782dc19 | 2197 | { |
f9418c0f | 2198 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 2199 | continue; |
f9418c0f AC |
2200 | } |
2201 | else | |
2202 | { | |
2203 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
2204 | continue; |
2205 | } | |
c5aa993b JM |
2206 | } |
2207 | else | |
2208 | { | |
2209 | if (i != regnum) | |
2210 | continue; | |
2211 | } | |
c906108c SS |
2212 | |
2213 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 2214 | processor, so don't display anything. */ |
a4bd449d UW |
2215 | if (gdbarch_register_name (gdbarch, i) == NULL |
2216 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
2217 | continue; |
2218 | ||
1292279a PA |
2219 | default_print_one_register_info (file, |
2220 | gdbarch_register_name (gdbarch, i), | |
901461f8 | 2221 | value_of_register (i, frame)); |
c906108c SS |
2222 | } |
2223 | } | |
c906108c | 2224 | |
c906108c | 2225 | void |
fba45db2 | 2226 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2227 | { |
206415a3 | 2228 | struct frame_info *frame; |
a4bd449d | 2229 | struct gdbarch *gdbarch; |
c906108c SS |
2230 | |
2231 | if (!target_has_registers) | |
8a3fe4f8 | 2232 | error (_("The program has no registers now.")); |
206415a3 | 2233 | frame = get_selected_frame (NULL); |
a4bd449d | 2234 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2235 | |
2236 | if (!addr_exp) | |
2237 | { | |
a4bd449d | 2238 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2239 | frame, -1, fpregs); |
c906108c SS |
2240 | return; |
2241 | } | |
2242 | ||
f9418c0f | 2243 | while (*addr_exp != '\0') |
c5aa993b | 2244 | { |
f9418c0f AC |
2245 | char *start; |
2246 | const char *end; | |
c906108c | 2247 | |
529480d0 KS |
2248 | /* Skip leading white space. */ |
2249 | addr_exp = skip_spaces (addr_exp); | |
c906108c | 2250 | |
f9418c0f AC |
2251 | /* Discard any leading ``$''. Check that there is something |
2252 | resembling a register following it. */ | |
2253 | if (addr_exp[0] == '$') | |
2254 | addr_exp++; | |
2255 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2256 | error (_("Missing register name")); |
c906108c | 2257 | |
f9418c0f AC |
2258 | /* Find the start/end of this register name/num/group. */ |
2259 | start = addr_exp; | |
2260 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2261 | addr_exp++; | |
2262 | end = addr_exp; | |
ad842144 | 2263 | |
f9418c0f AC |
2264 | /* Figure out what we've found and display it. */ |
2265 | ||
2266 | /* A register name? */ | |
2267 | { | |
029a67e4 | 2268 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2269 | |
f9418c0f AC |
2270 | if (regnum >= 0) |
2271 | { | |
ad842144 MR |
2272 | /* User registers lie completely outside of the range of |
2273 | normal registers. Catch them early so that the target | |
2274 | never sees them. */ | |
2275 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2276 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2277 | { | |
1292279a PA |
2278 | struct value *regval = value_of_user_reg (regnum, frame); |
2279 | const char *regname = user_reg_map_regnum_to_name (gdbarch, | |
2280 | regnum); | |
2281 | ||
2282 | /* Print in the same fashion | |
2283 | gdbarch_print_registers_info's default | |
2284 | implementation prints. */ | |
2285 | default_print_one_register_info (gdb_stdout, | |
2286 | regname, | |
2287 | regval); | |
ad842144 MR |
2288 | } |
2289 | else | |
2290 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2291 | frame, regnum, fpregs); | |
f9418c0f AC |
2292 | continue; |
2293 | } | |
2294 | } | |
ad842144 | 2295 | |
f9418c0f AC |
2296 | /* A register group? */ |
2297 | { | |
6c7d17ba | 2298 | struct reggroup *group; |
abbb1732 | 2299 | |
a4bd449d | 2300 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2301 | group != NULL; |
a4bd449d | 2302 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2303 | { |
2304 | /* Don't bother with a length check. Should the user | |
2305 | enter a short register group name, go with the first | |
2306 | group that matches. */ | |
6c7d17ba | 2307 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2308 | break; |
2309 | } | |
6c7d17ba | 2310 | if (group != NULL) |
f9418c0f AC |
2311 | { |
2312 | int regnum; | |
abbb1732 | 2313 | |
f57d151a | 2314 | for (regnum = 0; |
a4bd449d UW |
2315 | regnum < gdbarch_num_regs (gdbarch) |
2316 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2317 | regnum++) |
f9418c0f | 2318 | { |
a4bd449d UW |
2319 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2320 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2321 | gdb_stdout, frame, |
f9418c0f AC |
2322 | regnum, fpregs); |
2323 | } | |
2324 | continue; | |
2325 | } | |
2326 | } | |
c906108c | 2327 | |
f9418c0f | 2328 | /* Nothing matched. */ |
8a3fe4f8 | 2329 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2330 | } |
c906108c SS |
2331 | } |
2332 | ||
1dd5fedc | 2333 | static void |
fba45db2 | 2334 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2335 | { |
2336 | registers_info (addr_exp, 1); | |
2337 | } | |
2338 | ||
a58dd373 | 2339 | static void |
fba45db2 | 2340 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2341 | { |
2342 | registers_info (addr_exp, 0); | |
2343 | } | |
e76f1f2e AC |
2344 | |
2345 | static void | |
d80b854b | 2346 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2347 | struct frame_info *frame, const char *args) |
2348 | { | |
d80b854b UW |
2349 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2350 | ||
e76f1f2e AC |
2351 | if (gdbarch_print_vector_info_p (gdbarch)) |
2352 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2353 | else | |
2354 | { | |
2355 | int regnum; | |
2356 | int printed_something = 0; | |
ab4327e0 | 2357 | |
f57d151a | 2358 | for (regnum = 0; |
a4bd449d UW |
2359 | regnum < gdbarch_num_regs (gdbarch) |
2360 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2361 | regnum++) |
e76f1f2e | 2362 | { |
f9418c0f | 2363 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2364 | { |
2365 | printed_something = 1; | |
e76f1f2e | 2366 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2367 | } |
2368 | } | |
2369 | if (!printed_something) | |
2370 | fprintf_filtered (file, "No vector information\n"); | |
2371 | } | |
2372 | } | |
2373 | ||
2374 | static void | |
2375 | vector_info (char *args, int from_tty) | |
2376 | { | |
206415a3 DJ |
2377 | if (!target_has_registers) |
2378 | error (_("The program has no registers now.")); | |
2379 | ||
d80b854b | 2380 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2381 | } |
c906108c | 2382 | \f |
5fd62852 PA |
2383 | /* Kill the inferior process. Make us have no inferior. */ |
2384 | ||
2385 | static void | |
2386 | kill_command (char *arg, int from_tty) | |
2387 | { | |
2388 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2389 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2390 | some targets don't have processes! */ |
5fd62852 PA |
2391 | |
2392 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2393 | error (_("The program is not being run.")); | |
2394 | if (!query (_("Kill the program being debugged? "))) | |
2395 | error (_("Not confirmed.")); | |
2396 | target_kill (); | |
2397 | ||
c35b1492 PA |
2398 | /* If we still have other inferiors to debug, then don't mess with |
2399 | with their threads. */ | |
2400 | if (!have_inferiors ()) | |
5fd62852 | 2401 | { |
1777feb0 | 2402 | init_thread_list (); /* Destroy thread info. */ |
5fd62852 PA |
2403 | |
2404 | /* Killing off the inferior can leave us with a core file. If | |
2405 | so, print the state we are left in. */ | |
2406 | if (target_has_stack) | |
2407 | { | |
2408 | printf_filtered (_("In %s,\n"), target_longname); | |
08d72866 | 2409 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
5fd62852 PA |
2410 | } |
2411 | } | |
2412 | bfd_cache_close_all (); | |
2413 | } | |
c5aa993b | 2414 | |
74531fed PA |
2415 | /* Used in `attach&' command. ARG is a point to an integer |
2416 | representing a process id. Proceed threads of this process iff | |
2417 | they stopped due to debugger request, and when they did, they | |
a493e3e2 | 2418 | reported a clean stop (GDB_SIGNAL_0). Do not proceed threads |
74531fed PA |
2419 | that have been explicitly been told to stop. */ |
2420 | ||
2421 | static int | |
2422 | proceed_after_attach_callback (struct thread_info *thread, | |
2423 | void *arg) | |
2424 | { | |
2425 | int pid = * (int *) arg; | |
2426 | ||
2427 | if (ptid_get_pid (thread->ptid) == pid | |
2428 | && !is_exited (thread->ptid) | |
2429 | && !is_executing (thread->ptid) | |
2430 | && !thread->stop_requested | |
a493e3e2 | 2431 | && thread->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed PA |
2432 | { |
2433 | switch_to_thread (thread->ptid); | |
70509625 | 2434 | clear_proceed_status (0); |
a493e3e2 | 2435 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2436 | } |
2437 | ||
2438 | return 0; | |
2439 | } | |
2440 | ||
2441 | static void | |
2442 | proceed_after_attach (int pid) | |
2443 | { | |
2444 | /* Don't error out if the current thread is running, because | |
2445 | there may be other stopped threads. */ | |
2446 | struct cleanup *old_chain; | |
2447 | ||
2448 | /* Backup current thread and selected frame. */ | |
2449 | old_chain = make_cleanup_restore_current_thread (); | |
2450 | ||
2451 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2452 | ||
2453 | /* Restore selected ptid. */ | |
2454 | do_cleanups (old_chain); | |
2455 | } | |
2456 | ||
1777feb0 | 2457 | /* attach_command -- |
c906108c SS |
2458 | takes a program started up outside of gdb and ``attaches'' to it. |
2459 | This stops it cold in its tracks and allows us to start debugging it. | |
2460 | and wait for the trace-trap that results from attaching. */ | |
2461 | ||
9356cf8d PA |
2462 | static void |
2463 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2464 | { | |
2465 | char *exec_file; | |
2466 | char *full_exec_path = NULL; | |
d6b48e9c | 2467 | struct inferior *inferior; |
9356cf8d | 2468 | |
d6b48e9c | 2469 | inferior = current_inferior (); |
16c381f0 | 2470 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2471 | |
2472 | /* If no exec file is yet known, try to determine it from the | |
2473 | process itself. */ | |
2474 | exec_file = (char *) get_exec_file (0); | |
2475 | if (!exec_file) | |
2476 | { | |
dfd4cc63 | 2477 | exec_file = target_pid_to_exec_file (ptid_get_pid (inferior_ptid)); |
9356cf8d PA |
2478 | if (exec_file) |
2479 | { | |
2480 | /* It's possible we don't have a full path, but rather just a | |
2481 | filename. Some targets, such as HP-UX, don't provide the | |
2482 | full path, sigh. | |
2483 | ||
2484 | Attempt to qualify the filename against the source path. | |
2485 | (If that fails, we'll just fall back on the original | |
1777feb0 MS |
2486 | filename. Not much more we can do...) */ |
2487 | ||
9356cf8d | 2488 | if (!source_full_path_of (exec_file, &full_exec_path)) |
1b36a34b | 2489 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2490 | |
2491 | exec_file_attach (full_exec_path, from_tty); | |
2492 | symbol_file_add_main (full_exec_path, from_tty); | |
2493 | } | |
2494 | } | |
2495 | else | |
2496 | { | |
2497 | reopen_exec_file (); | |
2498 | reread_symbols (); | |
2499 | } | |
2500 | ||
2501 | /* Take any necessary post-attaching actions for this platform. */ | |
dfd4cc63 | 2502 | target_post_attach (ptid_get_pid (inferior_ptid)); |
9356cf8d PA |
2503 | |
2504 | post_create_inferior (¤t_target, from_tty); | |
2505 | ||
9356cf8d | 2506 | if (async_exec) |
74531fed PA |
2507 | { |
2508 | /* The user requested an `attach&', so be sure to leave threads | |
2509 | that didn't get a signal running. */ | |
2510 | ||
2511 | /* Immediatelly resume all suspended threads of this inferior, | |
2512 | and this inferior only. This should have no effect on | |
2513 | already running threads. If a thread has been stopped with a | |
2514 | signal, leave it be. */ | |
2515 | if (non_stop) | |
2516 | proceed_after_attach (inferior->pid); | |
2517 | else | |
2518 | { | |
a493e3e2 | 2519 | if (inferior_thread ()->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed | 2520 | { |
70509625 | 2521 | clear_proceed_status (0); |
a493e3e2 | 2522 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2523 | } |
2524 | } | |
2525 | } | |
9356cf8d PA |
2526 | else |
2527 | { | |
74531fed PA |
2528 | /* The user requested a plain `attach', so be sure to leave |
2529 | the inferior stopped. */ | |
2530 | ||
9356cf8d PA |
2531 | if (target_can_async_p ()) |
2532 | async_enable_stdin (); | |
74531fed PA |
2533 | |
2534 | /* At least the current thread is already stopped. */ | |
2535 | ||
2536 | /* In all-stop, by definition, all threads have to be already | |
2537 | stopped at this point. In non-stop, however, although the | |
2538 | selected thread is stopped, others may still be executing. | |
2539 | Be sure to explicitly stop all threads of the process. This | |
2540 | should have no effect on already stopped threads. */ | |
2541 | if (non_stop) | |
2542 | target_stop (pid_to_ptid (inferior->pid)); | |
2543 | ||
2544 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2545 | normal_stop (); |
2546 | if (deprecated_attach_hook) | |
2547 | deprecated_attach_hook (); | |
2548 | } | |
2549 | } | |
2550 | ||
bfec99b2 | 2551 | struct attach_command_continuation_args |
9356cf8d PA |
2552 | { |
2553 | char *args; | |
2554 | int from_tty; | |
2555 | int async_exec; | |
bfec99b2 | 2556 | }; |
9356cf8d | 2557 | |
bfec99b2 | 2558 | static void |
fa4cd53f | 2559 | attach_command_continuation (void *args, int err) |
bfec99b2 PA |
2560 | { |
2561 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2562 | |
fa4cd53f PA |
2563 | if (err) |
2564 | return; | |
2565 | ||
bfec99b2 | 2566 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2567 | } |
2568 | ||
604ead4a PA |
2569 | static void |
2570 | attach_command_continuation_free_args (void *args) | |
2571 | { | |
2572 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2573 | |
604ead4a PA |
2574 | xfree (a->args); |
2575 | xfree (a); | |
2576 | } | |
2577 | ||
c906108c | 2578 | void |
fba45db2 | 2579 | attach_command (char *args, int from_tty) |
c906108c | 2580 | { |
6c4486e6 PA |
2581 | int async_exec; |
2582 | struct cleanup *args_chain; | |
b3ccfe11 | 2583 | struct target_ops *attach_target; |
c906108c | 2584 | |
c5aa993b | 2585 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2586 | |
f5656ead | 2587 | if (gdbarch_has_global_solist (target_gdbarch ())) |
2567c7d9 PA |
2588 | /* Don't complain if all processes share the same symbol |
2589 | space. */ | |
8a305172 PA |
2590 | ; |
2591 | else if (target_has_execution) | |
c906108c | 2592 | { |
9e2f0ad4 | 2593 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2594 | target_kill (); |
2595 | else | |
8a3fe4f8 | 2596 | error (_("Not killed.")); |
c906108c SS |
2597 | } |
2598 | ||
fd79ecee DJ |
2599 | /* Clean up any leftovers from other runs. Some other things from |
2600 | this function should probably be moved into target_pre_inferior. */ | |
2601 | target_pre_inferior (from_tty); | |
2602 | ||
6c4486e6 PA |
2603 | args = strip_bg_char (args, &async_exec); |
2604 | args_chain = make_cleanup (xfree, args); | |
8bc2fe48 | 2605 | |
b3ccfe11 TT |
2606 | attach_target = find_attach_target (); |
2607 | ||
8bc2fe48 PA |
2608 | prepare_execution_command (attach_target, async_exec); |
2609 | ||
b3ccfe11 | 2610 | if (non_stop && !attach_target->to_supports_non_stop (attach_target)) |
9908b566 VP |
2611 | error (_("Cannot attach to this target in non-stop mode")); |
2612 | ||
b3ccfe11 TT |
2613 | attach_target->to_attach (attach_target, args, from_tty); |
2614 | /* to_attach should push the target, so after this point we | |
2615 | shouldn't refer to attach_target again. */ | |
2616 | attach_target = NULL; | |
c906108c | 2617 | |
6c4486e6 PA |
2618 | /* Done with ARGS. */ |
2619 | do_cleanups (args_chain); | |
2620 | ||
c906108c SS |
2621 | /* Set up the "saved terminal modes" of the inferior |
2622 | based on what modes we are starting it with. */ | |
2623 | target_terminal_init (); | |
2624 | ||
7180e04a PA |
2625 | /* Install inferior's terminal modes. This may look like a no-op, |
2626 | as we've just saved them above, however, this does more than | |
2627 | restore terminal settings: | |
2628 | ||
2629 | - installs a SIGINT handler that forwards SIGINT to the inferior. | |
2630 | Otherwise a Ctrl-C pressed just while waiting for the initial | |
2631 | stop would end up as a spurious Quit. | |
2632 | ||
2633 | - removes stdin from the event loop, which we need if attaching | |
2634 | in the foreground, otherwise on targets that report an initial | |
2635 | stop on attach (which are most) we'd process input/commands | |
2636 | while we're in the event loop waiting for that stop. That is, | |
2637 | before the attach continuation runs and the command is really | |
2638 | finished. */ | |
2639 | target_terminal_inferior (); | |
2640 | ||
c906108c SS |
2641 | /* Set up execution context to know that we should return from |
2642 | wait_for_inferior as soon as the target reports a stop. */ | |
2643 | init_wait_for_inferior (); | |
70509625 | 2644 | clear_proceed_status (0); |
c906108c | 2645 | |
74531fed PA |
2646 | if (non_stop) |
2647 | { | |
2648 | /* If we find that the current thread isn't stopped, explicitly | |
2649 | do so now, because we're going to install breakpoints and | |
2650 | poke at memory. */ | |
2651 | ||
2652 | if (async_exec) | |
2653 | /* The user requested an `attach&'; stop just one thread. */ | |
2654 | target_stop (inferior_ptid); | |
2655 | else | |
2656 | /* The user requested an `attach', so stop all threads of this | |
2657 | inferior. */ | |
2658 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2659 | } | |
2660 | ||
dc177b7a PA |
2661 | /* Some system don't generate traps when attaching to inferior. |
2662 | E.g. Mach 3 or GNU hurd. */ | |
2663 | if (!target_attach_no_wait) | |
c5aa993b | 2664 | { |
d6b48e9c PA |
2665 | struct inferior *inferior = current_inferior (); |
2666 | ||
1777feb0 | 2667 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2668 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2669 | need a way for handle_inferior_event to reset the stop_signal | |
2670 | variable after an attach, and this is what | |
2671 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2672 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2673 | |
dc177b7a PA |
2674 | if (target_can_async_p ()) |
2675 | { | |
2676 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2677 | struct attach_command_continuation_args *a; |
2678 | ||
2679 | a = xmalloc (sizeof (*a)); | |
2680 | a->args = xstrdup (args); | |
2681 | a->from_tty = from_tty; | |
2682 | a->async_exec = async_exec; | |
e0ba6746 PA |
2683 | add_inferior_continuation (attach_command_continuation, a, |
2684 | attach_command_continuation_free_args); | |
dc177b7a PA |
2685 | return; |
2686 | } | |
c906108c | 2687 | |
e4c8541f | 2688 | wait_for_inferior (); |
dc177b7a | 2689 | } |
6426a772 | 2690 | |
9356cf8d | 2691 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2692 | } |
2693 | ||
1941c569 PA |
2694 | /* We had just found out that the target was already attached to an |
2695 | inferior. PTID points at a thread of this new inferior, that is | |
2696 | the most likely to be stopped right now, but not necessarily so. | |
2697 | The new inferior is assumed to be already added to the inferior | |
2698 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2699 | this inferior running, except those we've explicitly seen reported | |
2700 | as stopped. */ | |
2701 | ||
2702 | void | |
2703 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2704 | { | |
2705 | struct cleanup* old_chain; | |
2706 | int async_exec; | |
2707 | ||
2708 | old_chain = make_cleanup (null_cleanup, NULL); | |
2709 | ||
2710 | /* If in non-stop, leave threads as running as they were. If | |
2711 | they're stopped for some reason other than us telling it to, the | |
a493e3e2 | 2712 | target reports a signal != GDB_SIGNAL_0. We don't try to |
1941c569 PA |
2713 | resume threads with such a stop signal. */ |
2714 | async_exec = non_stop; | |
2715 | ||
2716 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2717 | make_cleanup_restore_current_thread (); | |
2718 | ||
2719 | switch_to_thread (ptid); | |
2720 | ||
2721 | /* When we "notice" a new inferior we need to do all the things we | |
2722 | would normally do if we had just attached to it. */ | |
2723 | ||
2724 | if (is_executing (inferior_ptid)) | |
2725 | { | |
2726 | struct inferior *inferior = current_inferior (); | |
2727 | ||
2728 | /* We're going to install breakpoints, and poke at memory, | |
2729 | ensure that the inferior is stopped for a moment while we do | |
2730 | that. */ | |
2731 | target_stop (inferior_ptid); | |
2732 | ||
16c381f0 | 2733 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2734 | |
2735 | /* Wait for stop before proceeding. */ | |
2736 | if (target_can_async_p ()) | |
2737 | { | |
2738 | struct attach_command_continuation_args *a; | |
2739 | ||
2740 | a = xmalloc (sizeof (*a)); | |
2741 | a->args = xstrdup (""); | |
2742 | a->from_tty = from_tty; | |
2743 | a->async_exec = async_exec; | |
2744 | add_inferior_continuation (attach_command_continuation, a, | |
2745 | attach_command_continuation_free_args); | |
2746 | ||
2747 | do_cleanups (old_chain); | |
2748 | return; | |
2749 | } | |
2750 | else | |
e4c8541f | 2751 | wait_for_inferior (); |
1941c569 PA |
2752 | } |
2753 | ||
2754 | async_exec = leave_running; | |
2755 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2756 | ||
2757 | do_cleanups (old_chain); | |
2758 | } | |
2759 | ||
c906108c SS |
2760 | /* |
2761 | * detach_command -- | |
2762 | * takes a program previously attached to and detaches it. | |
2763 | * The program resumes execution and will no longer stop | |
2764 | * on signals, etc. We better not have left any breakpoints | |
2765 | * in the program or it'll die when it hits one. For this | |
2766 | * to work, it may be necessary for the process to have been | |
2767 | * previously attached. It *might* work if the program was | |
2768 | * started via the normal ptrace (PTRACE_TRACEME). | |
2769 | */ | |
2770 | ||
6418d433 | 2771 | void |
fba45db2 | 2772 | detach_command (char *args, int from_tty) |
c906108c | 2773 | { |
1f5d0fc9 | 2774 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2775 | |
2776 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2777 | error (_("The program is not being run.")); | |
2778 | ||
2f9d54cf PA |
2779 | query_if_trace_running (from_tty); |
2780 | ||
2781 | disconnect_tracing (); | |
d5551862 | 2782 | |
c906108c | 2783 | target_detach (args, from_tty); |
50c71eaf PA |
2784 | |
2785 | /* If the solist is global across inferiors, don't clear it when we | |
2786 | detach from a single inferior. */ | |
f5656ead | 2787 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf | 2788 | no_shared_libraries (NULL, from_tty); |
8a305172 | 2789 | |
c35b1492 PA |
2790 | /* If we still have inferiors to debug, then don't mess with their |
2791 | threads. */ | |
2792 | if (!have_inferiors ()) | |
8a305172 PA |
2793 | init_thread_list (); |
2794 | ||
9a4105ab AC |
2795 | if (deprecated_detach_hook) |
2796 | deprecated_detach_hook (); | |
c906108c SS |
2797 | } |
2798 | ||
6ad8ae5c DJ |
2799 | /* Disconnect from the current target without resuming it (leaving it |
2800 | waiting for a debugger). | |
2801 | ||
2802 | We'd better not have left any breakpoints in the program or the | |
2803 | next debugger will get confused. Currently only supported for some | |
2804 | remote targets, since the normal attach mechanisms don't work on | |
2805 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2806 | ||
2807 | static void | |
2808 | disconnect_command (char *args, int from_tty) | |
2809 | { | |
1777feb0 | 2810 | dont_repeat (); /* Not for the faint of heart. */ |
2f9d54cf PA |
2811 | query_if_trace_running (from_tty); |
2812 | disconnect_tracing (); | |
6ad8ae5c | 2813 | target_disconnect (args, from_tty); |
e85a822c | 2814 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2815 | init_thread_list (); |
9a4105ab AC |
2816 | if (deprecated_detach_hook) |
2817 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2818 | } |
2819 | ||
77ebaa5a VP |
2820 | void |
2821 | interrupt_target_1 (int all_threads) | |
2822 | { | |
2823 | ptid_t ptid; | |
abbb1732 | 2824 | |
77ebaa5a VP |
2825 | if (all_threads) |
2826 | ptid = minus_one_ptid; | |
2827 | else | |
2828 | ptid = inferior_ptid; | |
2829 | target_stop (ptid); | |
252fbfc8 PA |
2830 | |
2831 | /* Tag the thread as having been explicitly requested to stop, so | |
2832 | other parts of gdb know not to resume this thread automatically, | |
2833 | if it was stopped due to an internal event. Limit this to | |
2834 | non-stop mode, as when debugging a multi-threaded application in | |
2835 | all-stop mode, we will only get one stop event --- it's undefined | |
2836 | which thread will report the event. */ | |
2837 | if (non_stop) | |
2838 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2839 | } |
2840 | ||
6339bfc4 DE |
2841 | /* interrupt [-a] |
2842 | Stop the execution of the target while running in async mode, in | |
8cae4b3f PA |
2843 | the backgound. In all-stop, stop the whole process. In non-stop |
2844 | mode, stop the current thread only by default, or stop all threads | |
2845 | if the `-a' switch is used. */ | |
2846 | ||
1dd5fedc | 2847 | static void |
0a07590b | 2848 | interrupt_command (char *args, int from_tty) |
43ff13b4 | 2849 | { |
362646f5 | 2850 | if (target_can_async_p ()) |
43ff13b4 | 2851 | { |
8cae4b3f PA |
2852 | int all_threads = 0; |
2853 | ||
1777feb0 | 2854 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2855 | |
8cae4b3f PA |
2856 | if (args != NULL |
2857 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2858 | all_threads = 1; | |
2859 | ||
2860 | if (!non_stop && all_threads) | |
2861 | error (_("-a is meaningless in all-stop mode.")); | |
2862 | ||
77ebaa5a | 2863 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2864 | } |
2865 | } | |
2866 | ||
c906108c | 2867 | static void |
d80b854b | 2868 | print_float_info (struct ui_file *file, |
23e3a7ac | 2869 | struct frame_info *frame, const char *args) |
c906108c | 2870 | { |
d80b854b UW |
2871 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2872 | ||
23e3a7ac AC |
2873 | if (gdbarch_print_float_info_p (gdbarch)) |
2874 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2875 | else | |
2876 | { | |
23e3a7ac AC |
2877 | int regnum; |
2878 | int printed_something = 0; | |
ab4327e0 | 2879 | |
f57d151a | 2880 | for (regnum = 0; |
a4bd449d UW |
2881 | regnum < gdbarch_num_regs (gdbarch) |
2882 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2883 | regnum++) |
23e3a7ac | 2884 | { |
f9418c0f | 2885 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2886 | { |
2887 | printed_something = 1; | |
23e3a7ac | 2888 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2889 | } |
2890 | } | |
2891 | if (!printed_something) | |
3e43a32a MS |
2892 | fprintf_filtered (file, "No floating-point info " |
2893 | "available for this processor.\n"); | |
23e3a7ac AC |
2894 | } |
2895 | } | |
2896 | ||
2897 | static void | |
2898 | float_info (char *args, int from_tty) | |
2899 | { | |
206415a3 DJ |
2900 | if (!target_has_registers) |
2901 | error (_("The program has no registers now.")); | |
2902 | ||
d80b854b | 2903 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2904 | } |
2905 | \f | |
c906108c | 2906 | static void |
fba45db2 | 2907 | unset_command (char *args, int from_tty) |
c906108c | 2908 | { |
3e43a32a MS |
2909 | printf_filtered (_("\"unset\" must be followed by the " |
2910 | "name of an unset subcommand.\n")); | |
635c7e8a | 2911 | help_list (unsetlist, "unset ", all_commands, gdb_stdout); |
c906108c SS |
2912 | } |
2913 | ||
145b16a9 UW |
2914 | /* Implement `info proc' family of commands. */ |
2915 | ||
2916 | static void | |
2917 | info_proc_cmd_1 (char *args, enum info_proc_what what, int from_tty) | |
2918 | { | |
3030c96e UW |
2919 | struct gdbarch *gdbarch = get_current_arch (); |
2920 | ||
451b7c33 TT |
2921 | if (!target_info_proc (args, what)) |
2922 | { | |
2923 | if (gdbarch_info_proc_p (gdbarch)) | |
2924 | gdbarch_info_proc (gdbarch, args, what); | |
2925 | else | |
2926 | error (_("Not supported on this target.")); | |
2927 | } | |
145b16a9 UW |
2928 | } |
2929 | ||
2930 | /* Implement `info proc' when given without any futher parameters. */ | |
2931 | ||
2932 | static void | |
2933 | info_proc_cmd (char *args, int from_tty) | |
2934 | { | |
2935 | info_proc_cmd_1 (args, IP_MINIMAL, from_tty); | |
2936 | } | |
2937 | ||
2938 | /* Implement `info proc mappings'. */ | |
2939 | ||
2940 | static void | |
2941 | info_proc_cmd_mappings (char *args, int from_tty) | |
2942 | { | |
2943 | info_proc_cmd_1 (args, IP_MAPPINGS, from_tty); | |
2944 | } | |
2945 | ||
2946 | /* Implement `info proc stat'. */ | |
2947 | ||
2948 | static void | |
2949 | info_proc_cmd_stat (char *args, int from_tty) | |
2950 | { | |
2951 | info_proc_cmd_1 (args, IP_STAT, from_tty); | |
2952 | } | |
2953 | ||
2954 | /* Implement `info proc status'. */ | |
2955 | ||
2956 | static void | |
2957 | info_proc_cmd_status (char *args, int from_tty) | |
2958 | { | |
2959 | info_proc_cmd_1 (args, IP_STATUS, from_tty); | |
2960 | } | |
2961 | ||
2962 | /* Implement `info proc cwd'. */ | |
2963 | ||
2964 | static void | |
2965 | info_proc_cmd_cwd (char *args, int from_tty) | |
2966 | { | |
2967 | info_proc_cmd_1 (args, IP_CWD, from_tty); | |
2968 | } | |
2969 | ||
2970 | /* Implement `info proc cmdline'. */ | |
2971 | ||
2972 | static void | |
2973 | info_proc_cmd_cmdline (char *args, int from_tty) | |
2974 | { | |
2975 | info_proc_cmd_1 (args, IP_CMDLINE, from_tty); | |
2976 | } | |
2977 | ||
2978 | /* Implement `info proc exe'. */ | |
2979 | ||
2980 | static void | |
2981 | info_proc_cmd_exe (char *args, int from_tty) | |
2982 | { | |
2983 | info_proc_cmd_1 (args, IP_EXE, from_tty); | |
2984 | } | |
2985 | ||
2986 | /* Implement `info proc all'. */ | |
2987 | ||
2988 | static void | |
2989 | info_proc_cmd_all (char *args, int from_tty) | |
2990 | { | |
2991 | info_proc_cmd_1 (args, IP_ALL, from_tty); | |
2992 | } | |
2993 | ||
c906108c | 2994 | void |
fba45db2 | 2995 | _initialize_infcmd (void) |
c906108c | 2996 | { |
145b16a9 | 2997 | static struct cmd_list_element *info_proc_cmdlist; |
3cb3b8df | 2998 | struct cmd_list_element *c = NULL; |
6f937416 | 2999 | const char *cmd_name; |
3cb3b8df | 3000 | |
1777feb0 | 3001 | /* Add the filename of the terminal connected to inferior I/O. */ |
3cb3b8df | 3002 | add_setshow_filename_cmd ("inferior-tty", class_run, |
3f81c18a | 3003 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
3004 | Set terminal for future runs of program being debugged."), _("\ |
3005 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
3006 | Usage: set inferior-tty /dev/pts/1"), |
3007 | set_inferior_tty_command, | |
3008 | show_inferior_tty_command, | |
3009 | &setlist, &showlist); | |
3cb3b8df | 3010 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 3011 | |
6ace3df1 YQ |
3012 | cmd_name = "args"; |
3013 | add_setshow_string_noescape_cmd (cmd_name, class_run, | |
3014 | &inferior_args_scratch, _("\ | |
b4b4ac0b AC |
3015 | Set argument list to give program being debugged when it is started."), _("\ |
3016 | Show argument list to give program being debugged when it is started."), _("\ | |
3017 | Follow this command with any number of args, to be passed to the program."), | |
6ace3df1 YQ |
3018 | set_args_command, |
3019 | show_args_command, | |
3020 | &setlist, &showlist); | |
3021 | c = lookup_cmd (&cmd_name, setlist, "", -1, 1); | |
3022 | gdb_assert (c != NULL); | |
3023 | set_cmd_completer (c, filename_completer); | |
c906108c | 3024 | |
1a966eab AC |
3025 | c = add_cmd ("environment", no_class, environment_info, _("\ |
3026 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
3027 | With an argument VAR, prints the value of environment variable VAR to\n\ |
3028 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 3029 | environment to be given to the program."), &showlist); |
5ba2abeb | 3030 | set_cmd_completer (c, noop_completer); |
c906108c SS |
3031 | |
3032 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 3033 | _("Complement to certain \"set\" commands."), |
c906108c | 3034 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 3035 | |
1a966eab AC |
3036 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
3037 | Cancel environment variable VAR for the program.\n\ | |
3038 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 3039 | &unsetlist); |
5ba2abeb | 3040 | set_cmd_completer (c, noop_completer); |
c906108c | 3041 | |
1a966eab AC |
3042 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
3043 | Set environment variable value to give the program.\n\ | |
c906108c SS |
3044 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
3045 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 3046 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 3047 | &setlist); |
5ba2abeb | 3048 | set_cmd_completer (c, noop_completer); |
c5aa993b | 3049 | |
1bedd215 AC |
3050 | c = add_com ("path", class_files, path_command, _("\ |
3051 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
3052 | $cwd in the path means the current working directory.\n\ |
3053 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3054 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3055 | fully linked executable files and separately compiled object files as \ |
3056 | needed.")); | |
5ba2abeb | 3057 | set_cmd_completer (c, filename_completer); |
c906108c | 3058 | |
1a966eab AC |
3059 | c = add_cmd ("paths", no_class, path_info, _("\ |
3060 | Current search path for finding object files.\n\ | |
c906108c SS |
3061 | $cwd in the path means the current working directory.\n\ |
3062 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3063 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3064 | fully linked executable files and separately compiled object files as \ |
3065 | needed."), | |
c906108c | 3066 | &showlist); |
5ba2abeb | 3067 | set_cmd_completer (c, noop_completer); |
c906108c | 3068 | |
2277426b PA |
3069 | add_prefix_cmd ("kill", class_run, kill_command, |
3070 | _("Kill execution of program being debugged."), | |
3071 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 3072 | |
1bedd215 AC |
3073 | add_com ("attach", class_run, attach_command, _("\ |
3074 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
3075 | This command attaches to another target, of the same type as your last\n\ |
3076 | \"target\" command (\"info files\" will show your target stack).\n\ | |
3077 | The command may take as argument a process id or a device file.\n\ | |
3078 | For a process id, you must have permission to send the process a signal,\n\ | |
3079 | and it must have the same effective uid as the debugger.\n\ | |
3080 | When using \"attach\" with a process id, the debugger finds the\n\ | |
3081 | program running in the process, looking first in the current working\n\ | |
3082 | directory, or (if not found there) using the source file search path\n\ | |
3083 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 3084 | to specify the program, and to load its symbol table.")); |
c906108c | 3085 | |
f73adfeb | 3086 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 3087 | Detach a process or file previously attached.\n\ |
c906108c | 3088 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
3089 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
3090 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 3091 | |
1bedd215 AC |
3092 | add_com ("disconnect", class_run, disconnect_command, _("\ |
3093 | Disconnect from a target.\n\ | |
6ad8ae5c | 3094 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 3095 | all targets.")); |
6ad8ae5c | 3096 | |
de0bea00 | 3097 | c = add_com ("signal", class_run, signal_command, _("\ |
486c7739 MF |
3098 | Continue program with the specified signal.\n\ |
3099 | Usage: signal SIGNAL\n\ | |
2edda2ff | 3100 | The SIGNAL argument is processed the same as the handle command.\n\ |
486c7739 MF |
3101 | \n\ |
3102 | An argument of \"0\" means continue the program without sending it a signal.\n\ | |
3103 | This is useful in cases where the program stopped because of a signal,\n\ | |
81219e53 DE |
3104 | and you want to resume the program while discarding the signal.\n\ |
3105 | \n\ | |
3106 | In a multi-threaded program the signal is delivered to, or discarded from,\n\ | |
3107 | the current thread only.")); | |
3108 | set_cmd_completer (c, signal_completer); | |
3109 | ||
3110 | c = add_com ("queue-signal", class_run, queue_signal_command, _("\ | |
3111 | Queue a signal to be delivered to the current thread when it is resumed.\n\ | |
3112 | Usage: queue-signal SIGNAL\n\ | |
3113 | The SIGNAL argument is processed the same as the handle command.\n\ | |
3114 | It is an error if the handling state of SIGNAL is \"nopass\".\n\ | |
3115 | \n\ | |
3116 | An argument of \"0\" means remove any currently queued signal from\n\ | |
3117 | the current thread. This is useful in cases where the program stopped\n\ | |
3118 | because of a signal, and you want to resume it while discarding the signal.\n\ | |
3119 | \n\ | |
3120 | In a multi-threaded program the signal is queued with, or discarded from,\n\ | |
3121 | the current thread only.")); | |
de0bea00 | 3122 | set_cmd_completer (c, signal_completer); |
c906108c | 3123 | |
1bedd215 AC |
3124 | add_com ("stepi", class_run, stepi_command, _("\ |
3125 | Step one instruction exactly.\n\ | |
486c7739 MF |
3126 | Usage: stepi [N]\n\ |
3127 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3128 | reason).")); |
c906108c SS |
3129 | add_com_alias ("si", "stepi", class_alias, 0); |
3130 | ||
1bedd215 AC |
3131 | add_com ("nexti", class_run, nexti_command, _("\ |
3132 | Step one instruction, but proceed through subroutine calls.\n\ | |
486c7739 MF |
3133 | Usage: nexti [N]\n\ |
3134 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3135 | reason).")); |
c906108c SS |
3136 | add_com_alias ("ni", "nexti", class_alias, 0); |
3137 | ||
1bedd215 AC |
3138 | add_com ("finish", class_run, finish_command, _("\ |
3139 | Execute until selected stack frame returns.\n\ | |
486c7739 | 3140 | Usage: finish\n\ |
1bedd215 | 3141 | Upon return, the value returned is printed and put in the value history.")); |
0e479716 | 3142 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 3143 | |
1bedd215 AC |
3144 | add_com ("next", class_run, next_command, _("\ |
3145 | Step program, proceeding through subroutine calls.\n\ | |
486c7739 MF |
3146 | Usage: next [N]\n\ |
3147 | Unlike \"step\", if the current source line calls a subroutine,\n\ | |
3148 | this command does not enter the subroutine, but instead steps over\n\ | |
dbf6a605 | 3149 | the call, in effect treating it as a single source line.")); |
c906108c SS |
3150 | add_com_alias ("n", "next", class_run, 1); |
3151 | if (xdb_commands) | |
c5aa993b | 3152 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 3153 | |
1bedd215 AC |
3154 | add_com ("step", class_run, step_command, _("\ |
3155 | Step program until it reaches a different source line.\n\ | |
486c7739 MF |
3156 | Usage: step [N]\n\ |
3157 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3158 | reason).")); |
c906108c SS |
3159 | add_com_alias ("s", "step", class_run, 1); |
3160 | ||
1bedd215 AC |
3161 | c = add_com ("until", class_run, until_command, _("\ |
3162 | Execute until the program reaches a source line greater than the current\n\ | |
3e43a32a MS |
3163 | or a specified location (same args as break command) within the current \ |
3164 | frame.")); | |
5ba2abeb | 3165 | set_cmd_completer (c, location_completer); |
c906108c | 3166 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 3167 | |
1bedd215 | 3168 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
3169 | Continue the program up to the given location (same form as args for break \ |
3170 | command).\n\ | |
1bedd215 | 3171 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
3172 | set_cmd_completer (c, location_completer); |
3173 | ||
1bedd215 AC |
3174 | c = add_com ("jump", class_run, jump_command, _("\ |
3175 | Continue program being debugged at specified line or address.\n\ | |
486c7739 | 3176 | Usage: jump <location>\n\ |
c906108c | 3177 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 3178 | for an address to start at.")); |
5ba2abeb | 3179 | set_cmd_completer (c, location_completer); |
c1d780c2 | 3180 | add_com_alias ("j", "jump", class_run, 1); |
c906108c | 3181 | |
b83266a0 | 3182 | if (xdb_commands) |
c94fdfd0 | 3183 | { |
1bedd215 AC |
3184 | c = add_com ("go", class_run, go_command, _("\ |
3185 | Usage: go <location>\n\ | |
c906108c SS |
3186 | Continue program being debugged, stopping at specified line or \n\ |
3187 | address.\n\ | |
3188 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
3189 | expression for an address to start at.\n\ | |
1bedd215 | 3190 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 3191 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 3192 | } |
b83266a0 | 3193 | |
c906108c | 3194 | if (xdb_commands) |
c5aa993b | 3195 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 3196 | |
df983543 | 3197 | add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 3198 | Continue program being debugged, after signal or breakpoint.\n\ |
486c7739 | 3199 | Usage: continue [N]\n\ |
c906108c SS |
3200 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
3201 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
3202 | the breakpoint won't break until the Nth time it is reached).\n\ |
3203 | \n\ | |
3204 | If non-stop mode is enabled, continue only the current thread,\n\ | |
3205 | otherwise all the threads in the program are continued. To \n\ | |
3206 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
3207 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
3208 | add_com_alias ("c", "cont", class_run, 1); |
3209 | add_com_alias ("fg", "cont", class_run, 1); | |
3210 | ||
1bedd215 AC |
3211 | c = add_com ("run", class_run, run_command, _("\ |
3212 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c | 3213 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
3e43a32a MS |
3214 | Input and output redirection with \">\", \"<\", or \">>\" are also \ |
3215 | allowed.\n\n\ | |
3216 | With no arguments, uses arguments last specified (with \"run\" \ | |
3217 | or \"set args\").\n\ | |
c906108c | 3218 | To cancel previous arguments and run with no arguments,\n\ |
1bedd215 | 3219 | use \"set args\" without arguments.")); |
5ba2abeb | 3220 | set_cmd_completer (c, filename_completer); |
c906108c SS |
3221 | add_com_alias ("r", "run", class_run, 1); |
3222 | if (xdb_commands) | |
3223 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 3224 | _("Start debugged program with no arguments.")); |
c906108c | 3225 | |
1bedd215 | 3226 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
3227 | Run the debugged program until the beginning of the main procedure.\n\ |
3228 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 3229 | \"run\" command.")); |
a4d5f2e0 JB |
3230 | set_cmd_completer (c, filename_completer); |
3231 | ||
0a07590b | 3232 | add_com ("interrupt", class_run, interrupt_command, |
df983543 | 3233 | _("Interrupt the execution of the debugged program.\n\ |
8cae4b3f PA |
3234 | If non-stop mode is enabled, interrupt only the current thread,\n\ |
3235 | otherwise all the threads in the program are stopped. To \n\ | |
3236 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 3237 | |
1bedd215 AC |
3238 | add_info ("registers", nofp_registers_info, _("\ |
3239 | List of integer registers and their contents, for selected stack frame.\n\ | |
3240 | Register name as argument means describe only that register.")); | |
7194c49b | 3241 | add_info_alias ("r", "registers", 1); |
c906108c SS |
3242 | |
3243 | if (xdb_commands) | |
1bedd215 AC |
3244 | add_com ("lr", class_info, nofp_registers_info, _("\ |
3245 | List of integer registers and their contents, for selected stack frame.\n\ | |
3246 | Register name as argument means describe only that register.")); | |
3247 | add_info ("all-registers", all_registers_info, _("\ | |
3248 | List of all registers and their contents, for selected stack frame.\n\ | |
3249 | Register name as argument means describe only that register.")); | |
c906108c SS |
3250 | |
3251 | add_info ("program", program_info, | |
1bedd215 | 3252 | _("Execution status of the program.")); |
c906108c SS |
3253 | |
3254 | add_info ("float", float_info, | |
1bedd215 | 3255 | _("Print the status of the floating point unit\n")); |
c906108c | 3256 | |
e76f1f2e | 3257 | add_info ("vector", vector_info, |
1bedd215 | 3258 | _("Print the status of the vector unit\n")); |
145b16a9 UW |
3259 | |
3260 | add_prefix_cmd ("proc", class_info, info_proc_cmd, | |
3261 | _("\ | |
3262 | Show /proc process information about any running process.\n\ | |
3263 | Specify any process id, or use the program being debugged by default."), | |
3264 | &info_proc_cmdlist, "info proc ", | |
3265 | 1/*allow-unknown*/, &infolist); | |
3266 | ||
3267 | add_cmd ("mappings", class_info, info_proc_cmd_mappings, _("\ | |
3268 | List of mapped memory regions."), | |
3269 | &info_proc_cmdlist); | |
3270 | ||
3271 | add_cmd ("stat", class_info, info_proc_cmd_stat, _("\ | |
3272 | List process info from /proc/PID/stat."), | |
3273 | &info_proc_cmdlist); | |
3274 | ||
3275 | add_cmd ("status", class_info, info_proc_cmd_status, _("\ | |
3276 | List process info from /proc/PID/status."), | |
3277 | &info_proc_cmdlist); | |
3278 | ||
3279 | add_cmd ("cwd", class_info, info_proc_cmd_cwd, _("\ | |
3280 | List current working directory of the process."), | |
3281 | &info_proc_cmdlist); | |
3282 | ||
3283 | add_cmd ("cmdline", class_info, info_proc_cmd_cmdline, _("\ | |
3284 | List command line arguments of the process."), | |
3285 | &info_proc_cmdlist); | |
3286 | ||
3287 | add_cmd ("exe", class_info, info_proc_cmd_exe, _("\ | |
3288 | List absolute filename for executable of the process."), | |
3289 | &info_proc_cmdlist); | |
3290 | ||
3291 | add_cmd ("all", class_info, info_proc_cmd_all, _("\ | |
3292 | List all available /proc info."), | |
3293 | &info_proc_cmdlist); | |
c906108c | 3294 | } |