Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
32d0add0 | 3 | Copyright (C) 1986-2015 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" |
8a6c4031 | 57 | #include "infcall.h" |
d5551862 | 58 | |
a58dd373 EZ |
59 | /* Local functions: */ |
60 | ||
61 | static void nofp_registers_info (char *, int); | |
62 | ||
a14ed312 | 63 | static void until_next_command (int); |
c906108c | 64 | |
a14ed312 | 65 | static void until_command (char *, int); |
c906108c | 66 | |
a14ed312 | 67 | static void path_info (char *, int); |
c906108c | 68 | |
a14ed312 | 69 | static void path_command (char *, int); |
c906108c | 70 | |
a14ed312 | 71 | static void unset_command (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static void float_info (char *, int); |
c906108c | 74 | |
6ad8ae5c DJ |
75 | static void disconnect_command (char *, int); |
76 | ||
a14ed312 | 77 | static void unset_environment_command (char *, int); |
c906108c | 78 | |
a14ed312 | 79 | static void set_environment_command (char *, int); |
c906108c | 80 | |
a14ed312 | 81 | static void environment_info (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void program_info (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void finish_command (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void signal_command (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void jump_command (char *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void step_1 (int, int, char *); |
3e43a32a MS |
92 | static void step_once (int skip_subroutines, int single_inst, |
93 | int count, int thread); | |
c906108c | 94 | |
a14ed312 | 95 | static void next_command (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void step_command (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void run_command (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | void _initialize_infcmd (void); |
c906108c | 102 | |
c906108c | 103 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 104 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 105 | |
3e43a32a MS |
106 | /* Scratch area where string containing arguments to give to the |
107 | program will be stored by 'set args'. As soon as anything is | |
108 | stored, notice_args_set will move it into per-inferior storage. | |
1777feb0 | 109 | Arguments are separated by spaces. Empty string (pointer to '\0') |
3e43a32a | 110 | means no args. */ |
c906108c | 111 | |
3f81c18a | 112 | static char *inferior_args_scratch; |
c906108c | 113 | |
3f81c18a VP |
114 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
115 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 116 | |
3f81c18a | 117 | static char *inferior_io_terminal_scratch; |
c906108c SS |
118 | |
119 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
120 | Since various parts of infrun.c test this to see whether there is a program | |
121 | being debugged it should be nonzero (currently 3 is used) for remote | |
122 | debugging. */ | |
123 | ||
39f77062 | 124 | ptid_t inferior_ptid; |
c906108c | 125 | |
c906108c SS |
126 | /* Address at which inferior stopped. */ |
127 | ||
128 | CORE_ADDR stop_pc; | |
129 | ||
c906108c SS |
130 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
131 | ||
aa7d318d | 132 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
133 | |
134 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
135 | process. */ | |
136 | ||
137 | int stopped_by_random_signal; | |
138 | ||
98882a26 PA |
139 | /* See inferior.h. */ |
140 | ||
141 | int startup_with_shell = 1; | |
142 | ||
c906108c | 143 | \f |
1777feb0 | 144 | /* Accessor routines. */ |
07091751 | 145 | |
3f81c18a VP |
146 | /* Set the io terminal for the current inferior. Ownership of |
147 | TERMINAL_NAME is not transferred. */ | |
148 | ||
3cb3b8df BR |
149 | void |
150 | set_inferior_io_terminal (const char *terminal_name) | |
151 | { | |
3f81c18a VP |
152 | xfree (current_inferior ()->terminal); |
153 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
154 | } |
155 | ||
156 | const char * | |
157 | get_inferior_io_terminal (void) | |
158 | { | |
3f81c18a VP |
159 | return current_inferior ()->terminal; |
160 | } | |
161 | ||
162 | static void | |
163 | set_inferior_tty_command (char *args, int from_tty, | |
164 | struct cmd_list_element *c) | |
165 | { | |
166 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
167 | Now route it to current inferior. */ | |
168 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
169 | } | |
170 | ||
171 | static void | |
172 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
173 | struct cmd_list_element *c, const char *value) | |
174 | { | |
175 | /* Note that we ignore the passed-in value in favor of computing it | |
176 | directly. */ | |
275f2e57 | 177 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 178 | |
275f2e57 DJ |
179 | if (inferior_io_terminal == NULL) |
180 | inferior_io_terminal = ""; | |
3f81c18a | 181 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
182 | _("Terminal for future runs of program being debugged " |
183 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
184 | } |
185 | ||
07091751 FN |
186 | char * |
187 | get_inferior_args (void) | |
188 | { | |
3f81c18a | 189 | if (current_inferior ()->argc != 0) |
552c04a7 | 190 | { |
3f81c18a | 191 | char *n; |
552c04a7 | 192 | |
3f81c18a VP |
193 | n = construct_inferior_arguments (current_inferior ()->argc, |
194 | current_inferior ()->argv); | |
195 | set_inferior_args (n); | |
196 | xfree (n); | |
552c04a7 TT |
197 | } |
198 | ||
3f81c18a VP |
199 | if (current_inferior ()->args == NULL) |
200 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 201 | |
3f81c18a | 202 | return current_inferior ()->args; |
07091751 FN |
203 | } |
204 | ||
3f81c18a VP |
205 | /* Set the arguments for the current inferior. Ownership of |
206 | NEWARGS is not transferred. */ | |
207 | ||
208 | void | |
07091751 FN |
209 | set_inferior_args (char *newargs) |
210 | { | |
3f81c18a VP |
211 | xfree (current_inferior ()->args); |
212 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
213 | current_inferior ()->argc = 0; | |
214 | current_inferior ()->argv = 0; | |
07091751 | 215 | } |
c5aa993b | 216 | |
552c04a7 TT |
217 | void |
218 | set_inferior_args_vector (int argc, char **argv) | |
219 | { | |
3f81c18a VP |
220 | current_inferior ()->argc = argc; |
221 | current_inferior ()->argv = argv; | |
552c04a7 TT |
222 | } |
223 | ||
224 | /* Notice when `set args' is run. */ | |
6339bfc4 | 225 | |
552c04a7 | 226 | static void |
3f81c18a | 227 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 228 | { |
3f81c18a VP |
229 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
230 | Now route it to current inferior. */ | |
231 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
232 | } |
233 | ||
234 | /* Notice when `show args' is run. */ | |
6339bfc4 | 235 | |
552c04a7 | 236 | static void |
3f81c18a VP |
237 | show_args_command (struct ui_file *file, int from_tty, |
238 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 239 | { |
258c00cc TT |
240 | /* Note that we ignore the passed-in value in favor of computing it |
241 | directly. */ | |
242 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
243 | } |
244 | ||
c2a727fa TT |
245 | \f |
246 | /* Compute command-line string given argument vector. This does the | |
247 | same shell processing as fork_inferior. */ | |
6339bfc4 | 248 | |
c2a727fa | 249 | char * |
bd57a748 | 250 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
251 | { |
252 | char *result; | |
253 | ||
98882a26 | 254 | if (startup_with_shell) |
c2a727fa | 255 | { |
5d60742e EZ |
256 | #ifdef __MINGW32__ |
257 | /* This holds all the characters considered special to the | |
258 | Windows shells. */ | |
259 | char *special = "\"!&*|[]{}<>?`~^=;, \t\n"; | |
260 | const char quote = '"'; | |
261 | #else | |
c2a727fa TT |
262 | /* This holds all the characters considered special to the |
263 | typical Unix shells. We include `^' because the SunOS | |
264 | /bin/sh treats it as a synonym for `|'. */ | |
5d60742e EZ |
265 | char *special = "\"!#$&*()\\|[]{}<>?'`~^; \t\n"; |
266 | const char quote = '\''; | |
267 | #endif | |
c2a727fa TT |
268 | int i; |
269 | int length = 0; | |
270 | char *out, *cp; | |
271 | ||
272 | /* We over-compute the size. It shouldn't matter. */ | |
273 | for (i = 0; i < argc; ++i) | |
c2226152 | 274 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
275 | |
276 | result = (char *) xmalloc (length); | |
277 | out = result; | |
278 | ||
279 | for (i = 0; i < argc; ++i) | |
280 | { | |
281 | if (i > 0) | |
282 | *out++ = ' '; | |
283 | ||
03c6228e AS |
284 | /* Need to handle empty arguments specially. */ |
285 | if (argv[i][0] == '\0') | |
c2a727fa | 286 | { |
5d60742e EZ |
287 | *out++ = quote; |
288 | *out++ = quote; | |
03c6228e AS |
289 | } |
290 | else | |
291 | { | |
5d60742e EZ |
292 | #ifdef __MINGW32__ |
293 | int quoted = 0; | |
294 | ||
295 | if (strpbrk (argv[i], special)) | |
296 | { | |
297 | quoted = 1; | |
298 | *out++ = quote; | |
299 | } | |
300 | #endif | |
03c6228e AS |
301 | for (cp = argv[i]; *cp; ++cp) |
302 | { | |
c2226152 AS |
303 | if (*cp == '\n') |
304 | { | |
305 | /* A newline cannot be quoted with a backslash (it | |
306 | just disappears), only by putting it inside | |
307 | quotes. */ | |
5d60742e | 308 | *out++ = quote; |
c2226152 | 309 | *out++ = '\n'; |
5d60742e | 310 | *out++ = quote; |
c2226152 AS |
311 | } |
312 | else | |
313 | { | |
5d60742e EZ |
314 | #ifdef __MINGW32__ |
315 | if (*cp == quote) | |
316 | #else | |
c2226152 | 317 | if (strchr (special, *cp) != NULL) |
5d60742e | 318 | #endif |
c2226152 AS |
319 | *out++ = '\\'; |
320 | *out++ = *cp; | |
321 | } | |
03c6228e | 322 | } |
5d60742e EZ |
323 | #ifdef __MINGW32__ |
324 | if (quoted) | |
325 | *out++ = quote; | |
326 | #endif | |
c2a727fa TT |
327 | } |
328 | } | |
329 | *out = '\0'; | |
330 | } | |
331 | else | |
332 | { | |
333 | /* In this case we can't handle arguments that contain spaces, | |
334 | tabs, or newlines -- see breakup_args(). */ | |
335 | int i; | |
336 | int length = 0; | |
337 | ||
338 | for (i = 0; i < argc; ++i) | |
339 | { | |
340 | char *cp = strchr (argv[i], ' '); | |
341 | if (cp == NULL) | |
342 | cp = strchr (argv[i], '\t'); | |
343 | if (cp == NULL) | |
344 | cp = strchr (argv[i], '\n'); | |
345 | if (cp != NULL) | |
3e43a32a MS |
346 | error (_("can't handle command-line " |
347 | "argument containing whitespace")); | |
c2a727fa TT |
348 | length += strlen (argv[i]) + 1; |
349 | } | |
350 | ||
351 | result = (char *) xmalloc (length); | |
352 | result[0] = '\0'; | |
353 | for (i = 0; i < argc; ++i) | |
354 | { | |
355 | if (i > 0) | |
356 | strcat (result, " "); | |
357 | strcat (result, argv[i]); | |
358 | } | |
359 | } | |
360 | ||
361 | return result; | |
362 | } | |
552c04a7 TT |
363 | \f |
364 | ||
6c4486e6 PA |
365 | /* This function strips the '&' character (indicating background |
366 | execution) that is added as *the last* of the arguments ARGS of a | |
367 | command. A copy of the incoming ARGS without the '&' is returned, | |
368 | unless the resulting string after stripping is empty, in which case | |
369 | NULL is returned. *BG_CHAR_P is an output boolean that indicates | |
370 | whether the '&' character was found. */ | |
6339bfc4 | 371 | |
6c4486e6 PA |
372 | static char * |
373 | strip_bg_char (const char *args, int *bg_char_p) | |
43ff13b4 | 374 | { |
6c4486e6 | 375 | const char *p; |
c5aa993b | 376 | |
6c4486e6 PA |
377 | if (args == NULL || *args == '\0') |
378 | { | |
379 | *bg_char_p = 0; | |
380 | return NULL; | |
381 | } | |
c5aa993b | 382 | |
6c4486e6 PA |
383 | p = args + strlen (args); |
384 | if (p[-1] == '&') | |
43ff13b4 | 385 | { |
6c4486e6 PA |
386 | p--; |
387 | while (p > args && isspace (p[-1])) | |
388 | p--; | |
389 | ||
390 | *bg_char_p = 1; | |
391 | if (p != args) | |
392 | return savestring (args, p - args); | |
393 | else | |
394 | return NULL; | |
43ff13b4 | 395 | } |
6c4486e6 PA |
396 | |
397 | *bg_char_p = 0; | |
398 | return xstrdup (args); | |
43ff13b4 JM |
399 | } |
400 | ||
281b533b DJ |
401 | /* Common actions to take after creating any sort of inferior, by any |
402 | means (running, attaching, connecting, et cetera). The target | |
403 | should be stopped. */ | |
404 | ||
405 | void | |
406 | post_create_inferior (struct target_ops *target, int from_tty) | |
407 | { | |
ce406537 | 408 | |
b79599ff DP |
409 | /* Be sure we own the terminal in case write operations are performed. */ |
410 | target_terminal_ours (); | |
411 | ||
424163ea DJ |
412 | /* If the target hasn't taken care of this already, do it now. |
413 | Targets which need to access registers during to_open, | |
414 | to_create_inferior, or to_attach should do it earlier; but many | |
415 | don't need to. */ | |
416 | target_find_description (); | |
417 | ||
ce406537 PA |
418 | /* Now that we know the register layout, retrieve current PC. But |
419 | if the PC is unavailable (e.g., we're opening a core file with | |
420 | missing registers info), ignore it. */ | |
421 | stop_pc = 0; | |
492d29ea | 422 | TRY |
ce406537 PA |
423 | { |
424 | stop_pc = regcache_read_pc (get_current_regcache ()); | |
425 | } | |
492d29ea | 426 | CATCH (ex, RETURN_MASK_ERROR) |
7556d4a4 PA |
427 | { |
428 | if (ex.error != NOT_AVAILABLE_ERROR) | |
429 | throw_exception (ex); | |
430 | } | |
492d29ea | 431 | END_CATCH |
f698437e | 432 | |
50c71eaf PA |
433 | if (exec_bfd) |
434 | { | |
2eff07b3 PP |
435 | const unsigned solib_add_generation |
436 | = current_program_space->solib_add_generation; | |
437 | ||
9353355f DJ |
438 | /* Create the hooks to handle shared library load and unload |
439 | events. */ | |
268a4a75 | 440 | solib_create_inferior_hook (from_tty); |
268a4a75 | 441 | |
2eff07b3 PP |
442 | if (current_program_space->solib_add_generation == solib_add_generation) |
443 | { | |
444 | /* The platform-specific hook should load initial shared libraries, | |
445 | but didn't. FROM_TTY will be incorrectly 0 but such solib | |
446 | targets should be fixed anyway. Call it only after the solib | |
447 | target has been initialized by solib_create_inferior_hook. */ | |
448 | ||
449 | if (info_verbose) | |
450 | warning (_("platform-specific solib_create_inferior_hook did " | |
451 | "not load initial shared libraries.")); | |
452 | ||
453 | /* If the solist is global across processes, there's no need to | |
454 | refetch it here. */ | |
f5656ead | 455 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
4d1eb6b4 | 456 | solib_add (NULL, 0, target, auto_solib_add); |
2eff07b3 | 457 | } |
9353355f DJ |
458 | } |
459 | ||
ea5d7a99 PM |
460 | /* If the user sets watchpoints before execution having started, |
461 | then she gets software watchpoints, because GDB can't know which | |
462 | target will end up being pushed, or if it supports hardware | |
463 | watchpoints or not. breakpoint_re_set takes care of promoting | |
464 | watchpoints to hardware watchpoints if possible, however, if this | |
465 | new inferior doesn't load shared libraries or we don't pull in | |
466 | symbols from any other source on this target/arch, | |
467 | breakpoint_re_set is never called. Call it now so that software | |
468 | watchpoints get a chance to be promoted to hardware watchpoints | |
469 | if the now pushed target supports hardware watchpoints. */ | |
470 | breakpoint_re_set (); | |
471 | ||
281b533b DJ |
472 | observer_notify_inferior_created (target, from_tty); |
473 | } | |
474 | ||
a4d5f2e0 JB |
475 | /* Kill the inferior if already running. This function is designed |
476 | to be called when we are about to start the execution of the program | |
477 | from the beginning. Ask the user to confirm that he wants to restart | |
478 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 479 | |
8edfe269 | 480 | static void |
a4d5f2e0 JB |
481 | kill_if_already_running (int from_tty) |
482 | { | |
39f77062 | 483 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 484 | { |
8edfe269 DJ |
485 | /* Bail out before killing the program if we will not be able to |
486 | restart it. */ | |
487 | target_require_runnable (); | |
488 | ||
adf40b2e | 489 | if (from_tty |
9e2f0ad4 HZ |
490 | && !query (_("The program being debugged has been started already.\n\ |
491 | Start it from the beginning? "))) | |
8a3fe4f8 | 492 | error (_("Program not restarted.")); |
c906108c | 493 | target_kill (); |
c906108c | 494 | } |
a4d5f2e0 JB |
495 | } |
496 | ||
329ea579 | 497 | /* See inferior.h. */ |
8bc2fe48 | 498 | |
329ea579 | 499 | void |
8bc2fe48 PA |
500 | prepare_execution_command (struct target_ops *target, int background) |
501 | { | |
502 | /* If we get a request for running in the bg but the target | |
503 | doesn't support it, error out. */ | |
504 | if (background && !target->to_can_async_p (target)) | |
505 | error (_("Asynchronous execution not supported on this target.")); | |
506 | ||
507 | /* If we don't get a request of running in the bg, then we need | |
508 | to simulate synchronous (fg) execution. */ | |
509 | if (!background && target->to_can_async_p (target)) | |
510 | { | |
511 | /* Simulate synchronous execution. Note no cleanup is necessary | |
512 | for this. stdin is re-enabled whenever an error reaches the | |
513 | top level. */ | |
514 | async_disable_stdin (); | |
515 | } | |
516 | } | |
517 | ||
1777feb0 | 518 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
f67a969f JB |
519 | a temporary breakpoint at the begining of the main program before |
520 | running the program. */ | |
521 | ||
a4d5f2e0 | 522 | static void |
f67a969f | 523 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
524 | { |
525 | char *exec_file; | |
29f49a6a PA |
526 | struct cleanup *old_chain; |
527 | ptid_t ptid; | |
79a45e25 | 528 | struct ui_out *uiout = current_uiout; |
b3ccfe11 | 529 | struct target_ops *run_target; |
6c4486e6 PA |
530 | int async_exec; |
531 | struct cleanup *args_chain; | |
c906108c | 532 | |
a4d5f2e0 JB |
533 | dont_repeat (); |
534 | ||
535 | kill_if_already_running (from_tty); | |
3c35e65b UW |
536 | |
537 | init_wait_for_inferior (); | |
c906108c SS |
538 | clear_breakpoint_hit_counts (); |
539 | ||
fd79ecee DJ |
540 | /* Clean up any leftovers from other runs. Some other things from |
541 | this function should probably be moved into target_pre_inferior. */ | |
542 | target_pre_inferior (from_tty); | |
543 | ||
39ad761d JB |
544 | /* The comment here used to read, "The exec file is re-read every |
545 | time we do a generic_mourn_inferior, so we just have to worry | |
546 | about the symbol file." The `generic_mourn_inferior' function | |
547 | gets called whenever the program exits. However, suppose the | |
548 | program exits, and *then* the executable file changes? We need | |
549 | to check again here. Since reopen_exec_file doesn't do anything | |
550 | if the timestamp hasn't changed, I don't see the harm. */ | |
551 | reopen_exec_file (); | |
c906108c SS |
552 | reread_symbols (); |
553 | ||
6c4486e6 PA |
554 | args = strip_bg_char (args, &async_exec); |
555 | args_chain = make_cleanup (xfree, args); | |
f67a969f | 556 | |
8bc2fe48 PA |
557 | /* Do validation and preparation before possibly changing anything |
558 | in the inferior. */ | |
39ad761d | 559 | |
b3ccfe11 TT |
560 | run_target = find_run_target (); |
561 | ||
8bc2fe48 PA |
562 | prepare_execution_command (run_target, async_exec); |
563 | ||
b3ccfe11 | 564 | if (non_stop && !run_target->to_supports_non_stop (run_target)) |
9908b566 VP |
565 | error (_("The target does not support running in non-stop mode.")); |
566 | ||
8bc2fe48 PA |
567 | /* Done. Can now set breakpoints, change inferior args, etc. */ |
568 | ||
569 | /* Insert the temporary breakpoint if a location was specified. */ | |
570 | if (tbreak_at_main) | |
571 | tbreak_command (main_name (), 0); | |
572 | ||
573 | exec_file = (char *) get_exec_file (0); | |
574 | ||
c906108c SS |
575 | /* We keep symbols from add-symbol-file, on the grounds that the |
576 | user might want to add some symbols before running the program | |
577 | (right?). But sometimes (dynamic loading where the user manually | |
578 | introduces the new symbols with add-symbol-file), the code which | |
579 | the symbols describe does not persist between runs. Currently | |
580 | the user has to manually nuke all symbols between runs if they | |
581 | want them to go away (PR 2207). This is probably reasonable. */ | |
582 | ||
8bc2fe48 PA |
583 | /* If there were other args, beside '&', process them. */ |
584 | if (args != NULL) | |
585 | set_inferior_args (args); | |
c906108c SS |
586 | |
587 | if (from_tty) | |
588 | { | |
8b93c638 JM |
589 | ui_out_field_string (uiout, NULL, "Starting program"); |
590 | ui_out_text (uiout, ": "); | |
591 | if (exec_file) | |
592 | ui_out_field_string (uiout, "execfile", exec_file); | |
593 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
594 | /* We call get_inferior_args() because we might need to compute |
595 | the value now. */ | |
596 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
597 | ui_out_text (uiout, "\n"); |
598 | ui_out_flush (uiout); | |
c906108c SS |
599 | } |
600 | ||
6c4486e6 PA |
601 | /* Done with ARGS. */ |
602 | do_cleanups (args_chain); | |
603 | ||
552c04a7 TT |
604 | /* We call get_inferior_args() because we might need to compute |
605 | the value now. */ | |
b3ccfe11 TT |
606 | run_target->to_create_inferior (run_target, exec_file, get_inferior_args (), |
607 | environ_vector (current_inferior ()->environment), | |
608 | from_tty); | |
609 | /* to_create_inferior should push the target, so after this point we | |
610 | shouldn't refer to run_target again. */ | |
611 | run_target = NULL; | |
281b533b | 612 | |
29f49a6a PA |
613 | /* We're starting off a new process. When we get out of here, in |
614 | non-stop mode, finish the state of all threads of that process, | |
615 | but leave other threads alone, as they may be stopped in internal | |
616 | events --- the frontend shouldn't see them as stopped. In | |
617 | all-stop, always finish the state of all threads, as we may be | |
618 | resuming more than just the new process. */ | |
619 | if (non_stop) | |
620 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
621 | else | |
622 | ptid = minus_one_ptid; | |
623 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
624 | ||
de1b3c3d PA |
625 | /* Pass zero for FROM_TTY, because at this point the "run" command |
626 | has done its thing; now we are setting up the running program. */ | |
627 | post_create_inferior (¤t_target, 0); | |
281b533b | 628 | |
74d1f91e JK |
629 | /* Start the target running. Do not use -1 continuation as it would skip |
630 | breakpoint right at the entry point. */ | |
64ce06e4 | 631 | proceed (regcache_read_pc (get_current_regcache ()), GDB_SIGNAL_0); |
c906108c | 632 | |
29f49a6a PA |
633 | /* Since there was no error, there's no need to finish the thread |
634 | states here. */ | |
635 | discard_cleanups (old_chain); | |
636 | } | |
c906108c | 637 | |
f67a969f JB |
638 | static void |
639 | run_command (char *args, int from_tty) | |
640 | { | |
641 | run_command_1 (args, from_tty, 0); | |
642 | } | |
643 | ||
a4d5f2e0 JB |
644 | /* Start the execution of the program up until the beginning of the main |
645 | program. */ | |
646 | ||
647 | static void | |
648 | start_command (char *args, int from_tty) | |
649 | { | |
650 | /* Some languages such as Ada need to search inside the program | |
651 | minimal symbols for the location where to put the temporary | |
652 | breakpoint before starting. */ | |
653 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 654 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 655 | |
f67a969f JB |
656 | /* Run the program until reaching the main procedure... */ |
657 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
658 | } |
659 | ||
8cae4b3f PA |
660 | static int |
661 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
662 | { | |
74531fed PA |
663 | /* We go through all threads individually instead of compressing |
664 | into a single target `resume_all' request, because some threads | |
665 | may be stopped in internal breakpoints/events, or stopped waiting | |
666 | for its turn in the displaced stepping queue (that is, they are | |
667 | running && !executing). The target side has no idea about why | |
668 | the thread is stopped, so a `resume_all' command would resume too | |
669 | much. If/when GDB gains a way to tell the target `hold this | |
670 | thread stopped until I say otherwise', then we can optimize | |
671 | this. */ | |
4f8d22e3 | 672 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
673 | return 0; |
674 | ||
dcf4fbde | 675 | switch_to_thread (thread->ptid); |
70509625 | 676 | clear_proceed_status (0); |
64ce06e4 | 677 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
8cae4b3f PA |
678 | return 0; |
679 | } | |
680 | ||
70221824 | 681 | static void |
d729566a PA |
682 | ensure_valid_thread (void) |
683 | { | |
684 | if (ptid_equal (inferior_ptid, null_ptid) | |
685 | || is_exited (inferior_ptid)) | |
3e43a32a | 686 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
687 | } |
688 | ||
573cda03 | 689 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 690 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
691 | disallow those commands. */ |
692 | ||
70221824 | 693 | static void |
573cda03 SS |
694 | ensure_not_tfind_mode (void) |
695 | { | |
696 | if (get_traceframe_number () >= 0) | |
3e43a32a | 697 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
698 | } |
699 | ||
3d3fef6b YQ |
700 | /* Throw an error indicating the current thread is running. */ |
701 | ||
702 | static void | |
703 | error_is_running (void) | |
704 | { | |
705 | error (_("Cannot execute this command while " | |
706 | "the selected thread is running.")); | |
707 | } | |
708 | ||
709 | /* Calls error_is_running if the current thread is running. */ | |
710 | ||
711 | static void | |
712 | ensure_not_running (void) | |
713 | { | |
714 | if (is_running (inferior_ptid)) | |
715 | error_is_running (); | |
716 | } | |
717 | ||
77ebaa5a VP |
718 | void |
719 | continue_1 (int all_threads) | |
720 | { | |
3d488bfc | 721 | ERROR_NO_INFERIOR; |
573cda03 | 722 | ensure_not_tfind_mode (); |
3d488bfc | 723 | |
77ebaa5a VP |
724 | if (non_stop && all_threads) |
725 | { | |
726 | /* Don't error out if the current thread is running, because | |
abbb1732 | 727 | there may be other stopped threads. */ |
77ebaa5a VP |
728 | struct cleanup *old_chain; |
729 | ||
730 | /* Backup current thread and selected frame. */ | |
731 | old_chain = make_cleanup_restore_current_thread (); | |
732 | ||
733 | iterate_over_threads (proceed_thread_callback, NULL); | |
734 | ||
0ff33695 PA |
735 | if (sync_execution) |
736 | { | |
737 | /* If all threads in the target were already running, | |
738 | proceed_thread_callback ends up never calling proceed, | |
739 | and so nothing calls this to put the inferior's terminal | |
740 | settings in effect and remove stdin from the event loop, | |
741 | which we must when running a foreground command. E.g.: | |
742 | ||
743 | (gdb) c -a& | |
744 | Continuing. | |
745 | <all threads are running now> | |
746 | (gdb) c -a | |
747 | Continuing. | |
748 | <no thread was resumed, but the inferior now owns the terminal> | |
749 | */ | |
750 | target_terminal_inferior (); | |
751 | } | |
752 | ||
77ebaa5a VP |
753 | /* Restore selected ptid. */ |
754 | do_cleanups (old_chain); | |
755 | } | |
756 | else | |
757 | { | |
d729566a | 758 | ensure_valid_thread (); |
77ebaa5a | 759 | ensure_not_running (); |
70509625 | 760 | clear_proceed_status (0); |
64ce06e4 | 761 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
77ebaa5a VP |
762 | } |
763 | } | |
764 | ||
8cae4b3f | 765 | /* continue [-a] [proceed-count] [&] */ |
6339bfc4 | 766 | |
1dd5fedc | 767 | static void |
8cae4b3f | 768 | continue_command (char *args, int from_tty) |
c906108c | 769 | { |
6c4486e6 | 770 | int async_exec; |
8cae4b3f | 771 | int all_threads = 0; |
6c4486e6 PA |
772 | struct cleanup *args_chain; |
773 | ||
c906108c SS |
774 | ERROR_NO_INFERIOR; |
775 | ||
1777feb0 | 776 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
777 | args = strip_bg_char (args, &async_exec); |
778 | args_chain = make_cleanup (xfree, args); | |
43ff13b4 | 779 | |
8bc2fe48 | 780 | prepare_execution_command (¤t_target, async_exec); |
c906108c | 781 | |
8cae4b3f PA |
782 | if (args != NULL) |
783 | { | |
61012eef | 784 | if (startswith (args, "-a")) |
8cae4b3f PA |
785 | { |
786 | all_threads = 1; | |
787 | args += sizeof ("-a") - 1; | |
788 | if (*args == '\0') | |
789 | args = NULL; | |
790 | } | |
791 | } | |
792 | ||
793 | if (!non_stop && all_threads) | |
794 | error (_("`-a' is meaningless in all-stop mode.")); | |
795 | ||
796 | if (args != NULL && all_threads) | |
3e43a32a MS |
797 | error (_("Can't resume all threads and specify " |
798 | "proceed count simultaneously.")); | |
8cae4b3f PA |
799 | |
800 | /* If we have an argument left, set proceed count of breakpoint we | |
801 | stopped at. */ | |
802 | if (args != NULL) | |
c906108c | 803 | { |
347bddb7 | 804 | bpstat bs = NULL; |
8671a17b PA |
805 | int num, stat; |
806 | int stopped = 0; | |
347bddb7 PA |
807 | struct thread_info *tp; |
808 | ||
809 | if (non_stop) | |
e09875d4 | 810 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
811 | else |
812 | { | |
813 | ptid_t last_ptid; | |
814 | struct target_waitstatus ws; | |
815 | ||
816 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 817 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
818 | } |
819 | if (tp != NULL) | |
16c381f0 | 820 | bs = tp->control.stop_bpstat; |
8671a17b PA |
821 | |
822 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
823 | if (stat > 0) | |
824 | { | |
825 | set_ignore_count (num, | |
8cae4b3f | 826 | parse_and_eval_long (args) - 1, |
8671a17b PA |
827 | from_tty); |
828 | /* set_ignore_count prints a message ending with a period. | |
829 | So print two spaces before "Continuing.". */ | |
830 | if (from_tty) | |
831 | printf_filtered (" "); | |
832 | stopped = 1; | |
833 | } | |
834 | ||
835 | if (!stopped && from_tty) | |
c906108c SS |
836 | { |
837 | printf_filtered | |
838 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
839 | } | |
c906108c SS |
840 | } |
841 | ||
6c4486e6 PA |
842 | /* Done with ARGS. */ |
843 | do_cleanups (args_chain); | |
844 | ||
c906108c | 845 | if (from_tty) |
a3f17187 | 846 | printf_filtered (_("Continuing.\n")); |
c906108c | 847 | |
77ebaa5a | 848 | continue_1 (all_threads); |
c906108c SS |
849 | } |
850 | \f | |
edb3359d DJ |
851 | /* Record the starting point of a "step" or "next" command. */ |
852 | ||
853 | static void | |
854 | set_step_frame (void) | |
855 | { | |
856 | struct symtab_and_line sal; | |
64ce06e4 PA |
857 | CORE_ADDR pc; |
858 | struct frame_info *frame = get_current_frame (); | |
859 | struct thread_info *tp = inferior_thread (); | |
edb3359d | 860 | |
64ce06e4 PA |
861 | find_frame_sal (frame, &sal); |
862 | set_step_info (frame, sal); | |
863 | pc = get_frame_pc (frame); | |
864 | tp->control.step_start_function = find_pc_function (pc); | |
edb3359d DJ |
865 | } |
866 | ||
c906108c SS |
867 | /* Step until outside of current statement. */ |
868 | ||
c906108c | 869 | static void |
fba45db2 | 870 | step_command (char *count_string, int from_tty) |
c906108c SS |
871 | { |
872 | step_1 (0, 0, count_string); | |
873 | } | |
874 | ||
875 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
876 | ||
c906108c | 877 | static void |
fba45db2 | 878 | next_command (char *count_string, int from_tty) |
c906108c SS |
879 | { |
880 | step_1 (1, 0, count_string); | |
881 | } | |
882 | ||
883 | /* Likewise, but step only one instruction. */ | |
884 | ||
1dd5fedc | 885 | static void |
fba45db2 | 886 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
887 | { |
888 | step_1 (0, 1, count_string); | |
889 | } | |
890 | ||
1dd5fedc | 891 | static void |
fba45db2 | 892 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
893 | { |
894 | step_1 (1, 1, count_string); | |
895 | } | |
896 | ||
186c406b | 897 | void |
611c83ae | 898 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 899 | { |
611c83ae PA |
900 | int thread = * (int *) arg; |
901 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
902 | } |
903 | ||
c906108c | 904 | static void |
fba45db2 | 905 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 906 | { |
52f0bd74 | 907 | int count = 1; |
f107f563 | 908 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
6c4486e6 | 909 | int async_exec; |
b3dc826b | 910 | int thread = -1; |
6c4486e6 | 911 | struct cleanup *args_chain; |
c5aa993b | 912 | |
c906108c | 913 | ERROR_NO_INFERIOR; |
573cda03 | 914 | ensure_not_tfind_mode (); |
d729566a | 915 | ensure_valid_thread (); |
94cc34af | 916 | ensure_not_running (); |
43ff13b4 | 917 | |
6c4486e6 PA |
918 | count_string = strip_bg_char (count_string, &async_exec); |
919 | args_chain = make_cleanup (xfree, count_string); | |
c5aa993b | 920 | |
8bc2fe48 | 921 | prepare_execution_command (¤t_target, async_exec); |
43ff13b4 | 922 | |
bb518678 | 923 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 924 | |
6c4486e6 PA |
925 | /* Done with ARGS. */ |
926 | do_cleanups (args_chain); | |
927 | ||
1777feb0 | 928 | if (!single_inst || skip_subroutines) /* Leave si command alone. */ |
c906108c | 929 | { |
186c406b TT |
930 | struct thread_info *tp = inferior_thread (); |
931 | ||
611c83ae | 932 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 933 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 934 | |
186c406b | 935 | set_longjmp_breakpoint (tp, get_frame_id (get_current_frame ())); |
611c83ae | 936 | |
b3dc826b | 937 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
938 | } |
939 | ||
37d94800 | 940 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 941 | if (!target_can_async_p ()) |
c2d11a7d JM |
942 | { |
943 | for (; count > 0; count--) | |
944 | { | |
37d94800 | 945 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 946 | |
751b8ce1 PA |
947 | if (!target_has_execution) |
948 | break; | |
c2d11a7d JM |
949 | else |
950 | { | |
751b8ce1 PA |
951 | struct thread_info *tp = inferior_thread (); |
952 | ||
953 | if (!tp->control.stop_step || !tp->step_multi) | |
954 | { | |
955 | /* If we stopped for some reason that is not stepping | |
956 | there are no further steps to make. */ | |
957 | tp->step_multi = 0; | |
958 | break; | |
959 | } | |
c2d11a7d | 960 | } |
c2d11a7d JM |
961 | } |
962 | ||
f107f563 | 963 | do_cleanups (cleanups); |
c2d11a7d | 964 | } |
c2d11a7d JM |
965 | else |
966 | { | |
37d94800 PA |
967 | /* In the case of an asynchronous target things get complicated; |
968 | do only one step for now, before returning control to the | |
969 | event loop. Let the continuation figure out how many other | |
970 | steps we need to do, and handle them one at the time, through | |
971 | step_once. */ | |
b3dc826b | 972 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 973 | |
611c83ae | 974 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
975 | disable the longjmp breakpoint as appropriate. */ |
976 | discard_cleanups (cleanups); | |
c906108c | 977 | } |
c2d11a7d | 978 | } |
c906108c | 979 | |
bfec99b2 PA |
980 | struct step_1_continuation_args |
981 | { | |
982 | int count; | |
983 | int skip_subroutines; | |
984 | int single_inst; | |
985 | int thread; | |
986 | }; | |
987 | ||
c2d11a7d JM |
988 | /* Called after we are done with one step operation, to check whether |
989 | we need to step again, before we print the prompt and return control | |
1777feb0 MS |
990 | to the user. If count is > 1, we will need to do one more call to |
991 | proceed(), via step_once(). Basically it is like step_once and | |
992 | step_1_continuation are co-recursive. */ | |
6339bfc4 | 993 | |
c2d11a7d | 994 | static void |
fa4cd53f | 995 | step_1_continuation (void *args, int err) |
c2d11a7d | 996 | { |
bfec99b2 | 997 | struct step_1_continuation_args *a = args; |
f13468d9 | 998 | |
af679fd0 | 999 | if (target_has_execution) |
f13468d9 | 1000 | { |
af679fd0 PA |
1001 | struct thread_info *tp; |
1002 | ||
1003 | tp = inferior_thread (); | |
fa4cd53f PA |
1004 | if (!err |
1005 | && tp->step_multi && tp->control.stop_step) | |
af679fd0 PA |
1006 | { |
1007 | /* There are more steps to make, and we did stop due to | |
1008 | ending a stepping range. Do another step. */ | |
37d94800 PA |
1009 | step_once (a->skip_subroutines, a->single_inst, |
1010 | a->count - 1, a->thread); | |
af679fd0 PA |
1011 | return; |
1012 | } | |
1013 | tp->step_multi = 0; | |
f107f563 | 1014 | } |
af679fd0 | 1015 | |
fa4cd53f PA |
1016 | /* We either hit an error, or stopped for some reason that is |
1017 | not stepping, or there are no further steps to make. | |
1018 | Cleanup. */ | |
af679fd0 PA |
1019 | if (!a->single_inst || a->skip_subroutines) |
1020 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
1021 | } |
1022 | ||
37d94800 PA |
1023 | /* Do just one step operation. This is useful to implement the 'step |
1024 | n' kind of commands. In case of asynchronous targets, we will have | |
1025 | to set up a continuation to be done after the target stops (after | |
1026 | this one step). For synch targets, the caller handles further | |
1027 | stepping. */ | |
1028 | ||
1029 | static void | |
611c83ae | 1030 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 1031 | { |
edb3359d | 1032 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
1033 | |
1034 | if (count > 0) | |
c906108c | 1035 | { |
4e1c45ea PA |
1036 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
1037 | the longjmp breakpoint was not required. Use the | |
1038 | INFERIOR_PTID thread instead, which is the same thread when | |
1039 | THREAD is set. */ | |
1040 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 1041 | |
856e7dd6 | 1042 | clear_proceed_status (1); |
edb3359d | 1043 | set_step_frame (); |
c906108c | 1044 | |
c5aa993b | 1045 | if (!single_inst) |
c906108c | 1046 | { |
1641cfcc PA |
1047 | CORE_ADDR pc; |
1048 | ||
edb3359d | 1049 | /* Step at an inlined function behaves like "down". */ |
3f01d0d0 | 1050 | if (!skip_subroutines |
edb3359d DJ |
1051 | && inline_skipped_frames (inferior_ptid)) |
1052 | { | |
09cee04b PA |
1053 | ptid_t resume_ptid; |
1054 | ||
1055 | /* Pretend that we've ran. */ | |
1056 | resume_ptid = user_visible_resume_ptid (1); | |
1057 | set_running (resume_ptid, 1); | |
1058 | ||
edb3359d DJ |
1059 | step_into_inline_frame (inferior_ptid); |
1060 | if (count > 1) | |
1061 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
1062 | else | |
09cee04b PA |
1063 | { |
1064 | /* Pretend that we've stopped. */ | |
1065 | normal_stop (); | |
1066 | ||
1067 | if (target_can_async_p ()) | |
1068 | inferior_event_handler (INF_EXEC_COMPLETE, NULL); | |
1069 | } | |
edb3359d DJ |
1070 | return; |
1071 | } | |
1072 | ||
1641cfcc PA |
1073 | pc = get_frame_pc (frame); |
1074 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
1075 | &tp->control.step_range_start, |
1076 | &tp->control.step_range_end); | |
5fbbeb29 | 1077 | |
c1e36e3e PA |
1078 | tp->control.may_range_step = 1; |
1079 | ||
5fbbeb29 | 1080 | /* If we have no line info, switch to stepi mode. */ |
16c381f0 | 1081 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
c1e36e3e PA |
1082 | { |
1083 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1084 | tp->control.may_range_step = 0; | |
1085 | } | |
16c381f0 | 1086 | else if (tp->control.step_range_end == 0) |
c906108c | 1087 | { |
2c02bd72 | 1088 | const char *name; |
abbb1732 | 1089 | |
1641cfcc | 1090 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1091 | &tp->control.step_range_start, |
1092 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1093 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1094 | |
1095 | target_terminal_ours (); | |
3e43a32a MS |
1096 | printf_filtered (_("Single stepping until exit from function %s," |
1097 | "\nwhich has no line number information.\n"), | |
1098 | name); | |
c906108c SS |
1099 | } |
1100 | } | |
1101 | else | |
1102 | { | |
1103 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1104 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1105 | if (!skip_subroutines) |
1106 | /* It is stepi. | |
1107 | Don't step over function calls, not even to functions lacking | |
1108 | line numbers. */ | |
16c381f0 | 1109 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1110 | } |
1111 | ||
1112 | if (skip_subroutines) | |
16c381f0 | 1113 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1114 | |
95e54da7 | 1115 | tp->step_multi = (count > 1); |
856e7dd6 | 1116 | tp->control.stepping_command = 1; |
64ce06e4 | 1117 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
bfec99b2 | 1118 | |
37d94800 PA |
1119 | /* For async targets, register a continuation to do any |
1120 | additional steps. For sync targets, the caller will handle | |
1121 | further stepping. */ | |
1122 | if (target_can_async_p ()) | |
1123 | { | |
8d749320 SM |
1124 | struct step_1_continuation_args *args = |
1125 | XNEW (struct step_1_continuation_args); | |
37d94800 | 1126 | |
37d94800 PA |
1127 | args->skip_subroutines = skip_subroutines; |
1128 | args->single_inst = single_inst; | |
1129 | args->count = count; | |
1130 | args->thread = thread; | |
1131 | ||
1132 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1133 | } | |
c906108c | 1134 | } |
c906108c | 1135 | } |
c2d11a7d | 1136 | |
c906108c SS |
1137 | \f |
1138 | /* Continue program at specified address. */ | |
1139 | ||
1140 | static void | |
fba45db2 | 1141 | jump_command (char *arg, int from_tty) |
c906108c | 1142 | { |
5af949e3 | 1143 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1144 | CORE_ADDR addr; |
c906108c SS |
1145 | struct symtabs_and_lines sals; |
1146 | struct symtab_and_line sal; | |
1147 | struct symbol *fn; | |
1148 | struct symbol *sfn; | |
6c4486e6 PA |
1149 | int async_exec; |
1150 | struct cleanup *args_chain; | |
c5aa993b | 1151 | |
c906108c | 1152 | ERROR_NO_INFERIOR; |
573cda03 | 1153 | ensure_not_tfind_mode (); |
d729566a | 1154 | ensure_valid_thread (); |
94cc34af | 1155 | ensure_not_running (); |
c906108c | 1156 | |
1777feb0 | 1157 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
1158 | arg = strip_bg_char (arg, &async_exec); |
1159 | args_chain = make_cleanup (xfree, arg); | |
43ff13b4 | 1160 | |
8bc2fe48 | 1161 | prepare_execution_command (¤t_target, async_exec); |
43ff13b4 | 1162 | |
c906108c | 1163 | if (!arg) |
e2e0b3e5 | 1164 | error_no_arg (_("starting address")); |
c906108c | 1165 | |
39cf75f7 | 1166 | sals = decode_line_with_last_displayed (arg, DECODE_LINE_FUNFIRSTLINE); |
c906108c SS |
1167 | if (sals.nelts != 1) |
1168 | { | |
8a3fe4f8 | 1169 | error (_("Unreasonable jump request")); |
c906108c SS |
1170 | } |
1171 | ||
1172 | sal = sals.sals[0]; | |
b8c9b27d | 1173 | xfree (sals.sals); |
c906108c | 1174 | |
6c4486e6 PA |
1175 | /* Done with ARGS. */ |
1176 | do_cleanups (args_chain); | |
1177 | ||
c906108c | 1178 | if (sal.symtab == 0 && sal.pc == 0) |
8a3fe4f8 | 1179 | error (_("No source file has been specified.")); |
c906108c | 1180 | |
1777feb0 | 1181 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1182 | |
1777feb0 | 1183 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1184 | fn = get_frame_function (get_current_frame ()); |
1185 | sfn = find_pc_function (sal.pc); | |
1186 | if (fn != NULL && sfn != fn) | |
1187 | { | |
9e2f0ad4 | 1188 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1189 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1190 | { |
8a3fe4f8 | 1191 | error (_("Not confirmed.")); |
c906108c SS |
1192 | /* NOTREACHED */ |
1193 | } | |
1194 | } | |
1195 | ||
c5aa993b | 1196 | if (sfn != NULL) |
c906108c | 1197 | { |
253342b8 DE |
1198 | struct obj_section *section; |
1199 | ||
c906108c | 1200 | fixup_symbol_section (sfn, 0); |
08be3fe3 | 1201 | section = SYMBOL_OBJ_SECTION (symbol_objfile (sfn), sfn); |
253342b8 DE |
1202 | if (section_is_overlay (section) |
1203 | && !section_is_mapped (section)) | |
c906108c | 1204 | { |
3e43a32a MS |
1205 | if (!query (_("WARNING!!! Destination is in " |
1206 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1207 | { |
8a3fe4f8 | 1208 | error (_("Not confirmed.")); |
c906108c SS |
1209 | /* NOTREACHED */ |
1210 | } | |
1211 | } | |
1212 | } | |
1213 | ||
c906108c SS |
1214 | addr = sal.pc; |
1215 | ||
1216 | if (from_tty) | |
1217 | { | |
a3f17187 | 1218 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1219 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1220 | printf_filtered (".\n"); |
1221 | } | |
1222 | ||
70509625 | 1223 | clear_proceed_status (0); |
64ce06e4 | 1224 | proceed (addr, GDB_SIGNAL_0); |
c906108c | 1225 | } |
c906108c | 1226 | \f |
c906108c SS |
1227 | /* Continue program giving it specified signal. */ |
1228 | ||
1229 | static void | |
fba45db2 | 1230 | signal_command (char *signum_exp, int from_tty) |
c906108c | 1231 | { |
2ea28649 | 1232 | enum gdb_signal oursig; |
6c4486e6 PA |
1233 | int async_exec; |
1234 | struct cleanup *args_chain; | |
c906108c SS |
1235 | |
1236 | dont_repeat (); /* Too dangerous. */ | |
1237 | ERROR_NO_INFERIOR; | |
573cda03 | 1238 | ensure_not_tfind_mode (); |
d729566a | 1239 | ensure_valid_thread (); |
94cc34af | 1240 | ensure_not_running (); |
c906108c | 1241 | |
32c1e744 | 1242 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
1243 | signum_exp = strip_bg_char (signum_exp, &async_exec); |
1244 | args_chain = make_cleanup (xfree, signum_exp); | |
32c1e744 | 1245 | |
8bc2fe48 | 1246 | prepare_execution_command (¤t_target, async_exec); |
32c1e744 | 1247 | |
c906108c | 1248 | if (!signum_exp) |
e2e0b3e5 | 1249 | error_no_arg (_("signal number")); |
c906108c SS |
1250 | |
1251 | /* It would be even slicker to make signal names be valid expressions, | |
1252 | (the type could be "enum $signal" or some such), then the user could | |
1253 | assign them to convenience variables. */ | |
2ea28649 | 1254 | oursig = gdb_signal_from_name (signum_exp); |
c906108c | 1255 | |
a493e3e2 | 1256 | if (oursig == GDB_SIGNAL_UNKNOWN) |
c906108c SS |
1257 | { |
1258 | /* No, try numeric. */ | |
bb518678 | 1259 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1260 | |
1261 | if (num == 0) | |
a493e3e2 | 1262 | oursig = GDB_SIGNAL_0; |
c906108c | 1263 | else |
2ea28649 | 1264 | oursig = gdb_signal_from_command (num); |
c906108c SS |
1265 | } |
1266 | ||
c6343a91 JK |
1267 | do_cleanups (args_chain); |
1268 | ||
70509625 PA |
1269 | /* Look for threads other than the current that this command ends up |
1270 | resuming too (due to schedlock off), and warn if they'll get a | |
1271 | signal delivered. "signal 0" is used to suppress a previous | |
1272 | signal, but if the current thread is no longer the one that got | |
1273 | the signal, then the user is potentially suppressing the signal | |
1274 | of the wrong thread. */ | |
1275 | if (!non_stop) | |
1276 | { | |
1277 | struct thread_info *tp; | |
1278 | ptid_t resume_ptid; | |
1279 | int must_confirm = 0; | |
1280 | ||
1281 | /* This indicates what will be resumed. Either a single thread, | |
1282 | a whole process, or all threads of all processes. */ | |
1283 | resume_ptid = user_visible_resume_ptid (0); | |
1284 | ||
1285 | ALL_NON_EXITED_THREADS (tp) | |
1286 | { | |
1287 | if (ptid_equal (tp->ptid, inferior_ptid)) | |
1288 | continue; | |
1289 | if (!ptid_match (tp->ptid, resume_ptid)) | |
1290 | continue; | |
1291 | ||
1292 | if (tp->suspend.stop_signal != GDB_SIGNAL_0 | |
1293 | && signal_pass_state (tp->suspend.stop_signal)) | |
1294 | { | |
1295 | if (!must_confirm) | |
1296 | printf_unfiltered (_("Note:\n")); | |
1297 | printf_unfiltered (_(" Thread %d previously stopped with signal %s, %s.\n"), | |
1298 | tp->num, | |
1299 | gdb_signal_to_name (tp->suspend.stop_signal), | |
1300 | gdb_signal_to_string (tp->suspend.stop_signal)); | |
1301 | must_confirm = 1; | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | if (must_confirm | |
1306 | && !query (_("Continuing thread %d (the current thread) with specified signal will\n" | |
1307 | "still deliver the signals noted above to their respective threads.\n" | |
1308 | "Continue anyway? "), | |
1309 | inferior_thread ()->num)) | |
1310 | error (_("Not confirmed.")); | |
1311 | } | |
1312 | ||
c906108c SS |
1313 | if (from_tty) |
1314 | { | |
a493e3e2 | 1315 | if (oursig == GDB_SIGNAL_0) |
a3f17187 | 1316 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1317 | else |
a3f17187 | 1318 | printf_filtered (_("Continuing with signal %s.\n"), |
2ea28649 | 1319 | gdb_signal_to_name (oursig)); |
c906108c SS |
1320 | } |
1321 | ||
70509625 | 1322 | clear_proceed_status (0); |
64ce06e4 | 1323 | proceed ((CORE_ADDR) -1, oursig); |
c906108c SS |
1324 | } |
1325 | ||
81219e53 DE |
1326 | /* Queue a signal to be delivered to the current thread. */ |
1327 | ||
1328 | static void | |
1329 | queue_signal_command (char *signum_exp, int from_tty) | |
1330 | { | |
1331 | enum gdb_signal oursig; | |
1332 | struct thread_info *tp; | |
1333 | ||
1334 | ERROR_NO_INFERIOR; | |
1335 | ensure_not_tfind_mode (); | |
1336 | ensure_valid_thread (); | |
1337 | ensure_not_running (); | |
1338 | ||
1339 | if (signum_exp == NULL) | |
1340 | error_no_arg (_("signal number")); | |
1341 | ||
1342 | /* It would be even slicker to make signal names be valid expressions, | |
1343 | (the type could be "enum $signal" or some such), then the user could | |
1344 | assign them to convenience variables. */ | |
1345 | oursig = gdb_signal_from_name (signum_exp); | |
1346 | ||
1347 | if (oursig == GDB_SIGNAL_UNKNOWN) | |
1348 | { | |
1349 | /* No, try numeric. */ | |
1350 | int num = parse_and_eval_long (signum_exp); | |
1351 | ||
1352 | if (num == 0) | |
1353 | oursig = GDB_SIGNAL_0; | |
1354 | else | |
1355 | oursig = gdb_signal_from_command (num); | |
1356 | } | |
1357 | ||
1358 | if (oursig != GDB_SIGNAL_0 | |
1359 | && !signal_pass_state (oursig)) | |
1360 | error (_("Signal handling set to not pass this signal to the program.")); | |
1361 | ||
1362 | tp = inferior_thread (); | |
1363 | tp->suspend.stop_signal = oursig; | |
1364 | } | |
1365 | ||
fa4cd53f PA |
1366 | /* Continuation args to be passed to the "until" command |
1367 | continuation. */ | |
1368 | struct until_next_continuation_args | |
1369 | { | |
1370 | /* The thread that was current when the command was executed. */ | |
1371 | int thread; | |
1372 | }; | |
1373 | ||
186c406b TT |
1374 | /* A continuation callback for until_next_command. */ |
1375 | ||
1376 | static void | |
fa4cd53f | 1377 | until_next_continuation (void *arg, int err) |
186c406b | 1378 | { |
fa4cd53f | 1379 | struct until_next_continuation_args *a = arg; |
186c406b | 1380 | |
fa4cd53f | 1381 | delete_longjmp_breakpoint (a->thread); |
186c406b TT |
1382 | } |
1383 | ||
c906108c SS |
1384 | /* Proceed until we reach a different source line with pc greater than |
1385 | our current one or exit the function. We skip calls in both cases. | |
1386 | ||
1387 | Note that eventually this command should probably be changed so | |
1388 | that only source lines are printed out when we hit the breakpoint | |
1389 | we set. This may involve changes to wait_for_inferior and the | |
1390 | proceed status code. */ | |
1391 | ||
c906108c | 1392 | static void |
fba45db2 | 1393 | until_next_command (int from_tty) |
c906108c SS |
1394 | { |
1395 | struct frame_info *frame; | |
1396 | CORE_ADDR pc; | |
1397 | struct symbol *func; | |
1398 | struct symtab_and_line sal; | |
4e1c45ea | 1399 | struct thread_info *tp = inferior_thread (); |
186c406b TT |
1400 | int thread = tp->num; |
1401 | struct cleanup *old_chain; | |
c5aa993b | 1402 | |
70509625 | 1403 | clear_proceed_status (0); |
edb3359d | 1404 | set_step_frame (); |
c906108c SS |
1405 | |
1406 | frame = get_current_frame (); | |
1407 | ||
1408 | /* Step until either exited from this function or greater | |
1409 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1410 | not). */ |
c906108c | 1411 | |
1c7819ef | 1412 | pc = get_frame_pc (frame); |
c906108c | 1413 | func = find_pc_function (pc); |
c5aa993b | 1414 | |
c906108c SS |
1415 | if (!func) |
1416 | { | |
7cbd4a93 | 1417 | struct bound_minimal_symbol msymbol = lookup_minimal_symbol_by_pc (pc); |
c5aa993b | 1418 | |
7cbd4a93 | 1419 | if (msymbol.minsym == NULL) |
8a3fe4f8 | 1420 | error (_("Execution is not within a known function.")); |
c5aa993b | 1421 | |
77e371c0 | 1422 | tp->control.step_range_start = BMSYMBOL_VALUE_ADDRESS (msymbol); |
7e09a223 YQ |
1423 | /* The upper-bound of step_range is exclusive. In order to make PC |
1424 | within the range, set the step_range_end with PC + 1. */ | |
1425 | tp->control.step_range_end = pc + 1; | |
c906108c SS |
1426 | } |
1427 | else | |
1428 | { | |
1429 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1430 | |
16c381f0 JK |
1431 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1432 | tp->control.step_range_end = sal.end; | |
c906108c | 1433 | } |
c1e36e3e | 1434 | tp->control.may_range_step = 1; |
c5aa993b | 1435 | |
16c381f0 | 1436 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1437 | |
af679fd0 | 1438 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1439 | |
186c406b TT |
1440 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1441 | old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1442 | ||
64ce06e4 | 1443 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
186c406b TT |
1444 | |
1445 | if (target_can_async_p () && is_running (inferior_ptid)) | |
1446 | { | |
fa4cd53f PA |
1447 | struct until_next_continuation_args *cont_args; |
1448 | ||
186c406b | 1449 | discard_cleanups (old_chain); |
fa4cd53f PA |
1450 | cont_args = XNEW (struct until_next_continuation_args); |
1451 | cont_args->thread = inferior_thread ()->num; | |
1452 | ||
1453 | add_continuation (tp, until_next_continuation, cont_args, xfree); | |
186c406b TT |
1454 | } |
1455 | else | |
1456 | do_cleanups (old_chain); | |
c906108c SS |
1457 | } |
1458 | ||
c5aa993b | 1459 | static void |
fba45db2 | 1460 | until_command (char *arg, int from_tty) |
c906108c | 1461 | { |
6c4486e6 PA |
1462 | int async_exec; |
1463 | struct cleanup *args_chain; | |
43ff13b4 | 1464 | |
4247603b | 1465 | ERROR_NO_INFERIOR; |
573cda03 | 1466 | ensure_not_tfind_mode (); |
4247603b PA |
1467 | ensure_valid_thread (); |
1468 | ensure_not_running (); | |
573cda03 | 1469 | |
1777feb0 | 1470 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
1471 | arg = strip_bg_char (arg, &async_exec); |
1472 | args_chain = make_cleanup (xfree, arg); | |
43ff13b4 | 1473 | |
8bc2fe48 | 1474 | prepare_execution_command (¤t_target, async_exec); |
43ff13b4 | 1475 | |
c906108c | 1476 | if (arg) |
ae66c1fc | 1477 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1478 | else |
1479 | until_next_command (from_tty); | |
6c4486e6 PA |
1480 | |
1481 | /* Done with ARGS. */ | |
1482 | do_cleanups (args_chain); | |
c906108c | 1483 | } |
ae66c1fc EZ |
1484 | |
1485 | static void | |
1486 | advance_command (char *arg, int from_tty) | |
1487 | { | |
6c4486e6 PA |
1488 | int async_exec; |
1489 | struct cleanup *args_chain; | |
ae66c1fc | 1490 | |
4247603b | 1491 | ERROR_NO_INFERIOR; |
573cda03 | 1492 | ensure_not_tfind_mode (); |
4247603b PA |
1493 | ensure_valid_thread (); |
1494 | ensure_not_running (); | |
573cda03 | 1495 | |
ae66c1fc | 1496 | if (arg == NULL) |
e2e0b3e5 | 1497 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1498 | |
1499 | /* Find out whether we must run in the background. */ | |
6c4486e6 PA |
1500 | arg = strip_bg_char (arg, &async_exec); |
1501 | args_chain = make_cleanup (xfree, arg); | |
ae66c1fc | 1502 | |
8bc2fe48 | 1503 | prepare_execution_command (¤t_target, async_exec); |
ae66c1fc EZ |
1504 | |
1505 | until_break_command (arg, from_tty, 1); | |
6c4486e6 PA |
1506 | |
1507 | /* Done with ARGS. */ | |
1508 | do_cleanups (args_chain); | |
ae66c1fc | 1509 | } |
c906108c | 1510 | \f |
cc72b2a2 | 1511 | /* Return the value of the result of a function at the end of a 'finish' |
8a6c4031 JK |
1512 | command/BP. DTOR_DATA (if not NULL) can represent inferior registers |
1513 | right after an inferior call has finished. */ | |
f941662f | 1514 | |
cc72b2a2 | 1515 | struct value * |
8a6c4031 JK |
1516 | get_return_value (struct value *function, struct type *value_type, |
1517 | struct dummy_frame_context_saver *ctx_saver) | |
11cf8741 | 1518 | { |
8a6c4031 | 1519 | struct regcache *stop_regs = NULL; |
cc72b2a2 | 1520 | struct gdbarch *gdbarch; |
44e5158b | 1521 | struct value *value; |
cc72b2a2 KP |
1522 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
1523 | ||
46c03469 | 1524 | /* If registers were not saved, use the current registers. */ |
8a6c4031 JK |
1525 | if (ctx_saver != NULL) |
1526 | stop_regs = dummy_frame_context_saver_get_regs (ctx_saver); | |
1527 | else | |
cc72b2a2 KP |
1528 | { |
1529 | stop_regs = regcache_dup (get_current_regcache ()); | |
faab9922 | 1530 | make_cleanup_regcache_xfree (stop_regs); |
cc72b2a2 KP |
1531 | } |
1532 | ||
1533 | gdbarch = get_regcache_arch (stop_regs); | |
44e5158b | 1534 | |
f168693b | 1535 | value_type = check_typedef (value_type); |
44e5158b | 1536 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1537 | |
92ad9cd9 AC |
1538 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1539 | call, it's possible (with no help from the architecture vector) | |
1540 | to locate and return/print a "struct return" value. This is just | |
7a9dd1b2 | 1541 | a more complicated case of what is already being done in the |
92ad9cd9 AC |
1542 | inferior function call code. In fact, when inferior function |
1543 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1544 | |
6a3a010b | 1545 | switch (gdbarch_return_value (gdbarch, function, value_type, |
c055b101 | 1546 | NULL, NULL, NULL)) |
44e5158b | 1547 | { |
750eb019 AC |
1548 | case RETURN_VALUE_REGISTER_CONVENTION: |
1549 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1550 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1551 | value = allocate_value (value_type); |
6a3a010b | 1552 | gdbarch_return_value (gdbarch, function, value_type, stop_regs, |
990a07ab | 1553 | value_contents_raw (value), NULL); |
750eb019 AC |
1554 | break; |
1555 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1556 | value = NULL; | |
1557 | break; | |
1558 | default: | |
e2e0b3e5 | 1559 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1560 | } |
bb472c1e | 1561 | |
cc72b2a2 KP |
1562 | do_cleanups (cleanup); |
1563 | ||
1564 | return value; | |
1565 | } | |
1566 | ||
8a6c4031 JK |
1567 | /* Print the result of a function at the end of a 'finish' command. |
1568 | DTOR_DATA (if not NULL) can represent inferior registers right after | |
1569 | an inferior call has finished. */ | |
cc72b2a2 KP |
1570 | |
1571 | static void | |
8a6c4031 JK |
1572 | print_return_value (struct value *function, struct type *value_type, |
1573 | struct dummy_frame_context_saver *ctx_saver) | |
cc72b2a2 | 1574 | { |
8a6c4031 | 1575 | struct value *value = get_return_value (function, value_type, ctx_saver); |
cc72b2a2 KP |
1576 | struct ui_out *uiout = current_uiout; |
1577 | ||
31db7b6c MK |
1578 | if (value) |
1579 | { | |
79a45b7d | 1580 | struct value_print_options opts; |
f99d8bf4 PA |
1581 | struct ui_file *stb; |
1582 | struct cleanup *old_chain; | |
79a45b7d | 1583 | |
31db7b6c | 1584 | /* Print it. */ |
f99d8bf4 PA |
1585 | stb = mem_fileopen (); |
1586 | old_chain = make_cleanup_ui_file_delete (stb); | |
31db7b6c MK |
1587 | ui_out_text (uiout, "Value returned is "); |
1588 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1589 | record_latest_value (value)); | |
1590 | ui_out_text (uiout, " = "); | |
2a998fc0 | 1591 | get_no_prettyformat_print_options (&opts); |
f99d8bf4 | 1592 | value_print (value, stb, &opts); |
31db7b6c MK |
1593 | ui_out_field_stream (uiout, "return-value", stb); |
1594 | ui_out_text (uiout, "\n"); | |
1d751abe | 1595 | do_cleanups (old_chain); |
31db7b6c MK |
1596 | } |
1597 | else | |
1598 | { | |
2f41223f AT |
1599 | struct cleanup *oldchain; |
1600 | char *type_name; | |
1601 | ||
1602 | type_name = type_to_string (value_type); | |
1603 | oldchain = make_cleanup (xfree, type_name); | |
31db7b6c | 1604 | ui_out_text (uiout, "Value returned has type: "); |
2f41223f | 1605 | ui_out_field_string (uiout, "return-type", type_name); |
1d751abe PA |
1606 | ui_out_text (uiout, "."); |
1607 | ui_out_text (uiout, " Cannot determine contents\n"); | |
2f41223f | 1608 | do_cleanups (oldchain); |
31db7b6c | 1609 | } |
11cf8741 JM |
1610 | } |
1611 | ||
43ff13b4 | 1612 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1613 | has stopped. In asynchronous mode, we wait for the target to stop |
1614 | in the call to poll or select in the event loop, so it is | |
1615 | impossible to do all the stuff as part of the finish_command | |
1616 | function itself. The only chance we have to complete this command | |
1617 | is in fetch_inferior_event, which is called by the event loop as | |
fa4cd53f | 1618 | soon as it detects that the target has stopped. */ |
f941662f | 1619 | |
bfec99b2 | 1620 | struct finish_command_continuation_args |
43ff13b4 | 1621 | { |
fa4cd53f PA |
1622 | /* The thread that as current when the command was executed. */ |
1623 | int thread; | |
43ff13b4 | 1624 | struct breakpoint *breakpoint; |
bfec99b2 | 1625 | struct symbol *function; |
8a6c4031 JK |
1626 | |
1627 | /* Inferior registers stored right before dummy_frame has been freed | |
1628 | after an inferior call. It can be NULL if no inferior call was | |
1629 | involved, GDB will then use current inferior registers. */ | |
1630 | struct dummy_frame_context_saver *ctx_saver; | |
bfec99b2 | 1631 | }; |
c5aa993b | 1632 | |
bfec99b2 | 1633 | static void |
fa4cd53f | 1634 | finish_command_continuation (void *arg, int err) |
bfec99b2 PA |
1635 | { |
1636 | struct finish_command_continuation_args *a = arg; | |
347bddb7 | 1637 | |
fa4cd53f | 1638 | if (!err) |
43ff13b4 | 1639 | { |
fa4cd53f PA |
1640 | struct thread_info *tp = NULL; |
1641 | bpstat bs = NULL; | |
bfec99b2 | 1642 | |
fa4cd53f PA |
1643 | if (!ptid_equal (inferior_ptid, null_ptid) |
1644 | && target_has_execution | |
1645 | && is_stopped (inferior_ptid)) | |
1646 | { | |
1647 | tp = inferior_thread (); | |
1648 | bs = tp->control.stop_bpstat; | |
1649 | } | |
f5871ec0 | 1650 | |
fa4cd53f PA |
1651 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL |
1652 | && a->function != NULL) | |
40c549d6 | 1653 | { |
fa4cd53f PA |
1654 | struct type *value_type; |
1655 | ||
1656 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); | |
1657 | if (!value_type) | |
1658 | internal_error (__FILE__, __LINE__, | |
1659 | _("finish_command: function has no target type")); | |
40c549d6 | 1660 | |
fa4cd53f | 1661 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 | 1662 | { |
6a3a010b | 1663 | struct value *func; |
fa4cd53f | 1664 | |
63e43d3a | 1665 | func = read_var_value (a->function, NULL, get_current_frame ()); |
492d29ea | 1666 | TRY |
fa4cd53f PA |
1667 | { |
1668 | /* print_return_value can throw an exception in some | |
1669 | circumstances. We need to catch this so that we still | |
1670 | delete the breakpoint. */ | |
8a6c4031 | 1671 | print_return_value (func, value_type, a->ctx_saver); |
fa4cd53f | 1672 | } |
492d29ea PA |
1673 | CATCH (ex, RETURN_MASK_ALL) |
1674 | { | |
1675 | exception_print (gdb_stdout, ex); | |
1676 | } | |
1677 | END_CATCH | |
40c549d6 | 1678 | } |
40c549d6 | 1679 | } |
fa4cd53f PA |
1680 | |
1681 | /* We suppress normal call of normal_stop observer and do it | |
1682 | here so that the *stopped notification includes the return | |
1683 | value. */ | |
1684 | if (bs != NULL && tp->control.proceed_to_finish) | |
1685 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
43ff13b4 | 1686 | } |
f941662f | 1687 | |
bfec99b2 | 1688 | delete_breakpoint (a->breakpoint); |
fa4cd53f | 1689 | delete_longjmp_breakpoint (a->thread); |
43ff13b4 JM |
1690 | } |
1691 | ||
604ead4a PA |
1692 | static void |
1693 | finish_command_continuation_free_arg (void *arg) | |
1694 | { | |
8a6c4031 JK |
1695 | struct finish_command_continuation_args *cargs = arg; |
1696 | ||
1697 | if (cargs->ctx_saver != NULL) | |
1698 | dummy_frame_context_saver_drop (cargs->ctx_saver); | |
1699 | xfree (cargs); | |
604ead4a PA |
1700 | } |
1701 | ||
b2175913 MS |
1702 | /* finish_backward -- helper function for finish_command. */ |
1703 | ||
1704 | static void | |
1705 | finish_backward (struct symbol *function) | |
1706 | { | |
1707 | struct symtab_and_line sal; | |
1708 | struct thread_info *tp = inferior_thread (); | |
1c7819ef | 1709 | CORE_ADDR pc; |
b2175913 | 1710 | CORE_ADDR func_addr; |
b2175913 | 1711 | |
1c7819ef PA |
1712 | pc = get_frame_pc (get_current_frame ()); |
1713 | ||
1714 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
1f267ae3 | 1715 | error (_("Cannot find bounds of current function")); |
b2175913 MS |
1716 | |
1717 | sal = find_pc_line (func_addr, 0); | |
1718 | ||
9da8c2a0 | 1719 | tp->control.proceed_to_finish = 1; |
b2175913 MS |
1720 | /* Special case: if we're sitting at the function entry point, |
1721 | then all we need to do is take a reverse singlestep. We | |
1722 | don't need to set a breakpoint, and indeed it would do us | |
1723 | no good to do so. | |
1724 | ||
1725 | Note that this can only happen at frame #0, since there's | |
1726 | no way that a function up the stack can have a return address | |
1727 | that's equal to its entry point. */ | |
1728 | ||
1c7819ef | 1729 | if (sal.pc != pc) |
b2175913 | 1730 | { |
a6d9a66e UW |
1731 | struct frame_info *frame = get_selected_frame (NULL); |
1732 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
9da8c2a0 PA |
1733 | struct symtab_and_line sr_sal; |
1734 | ||
1735 | /* Set a step-resume at the function's entry point. Once that's | |
1736 | hit, we'll do one more step backwards. */ | |
1737 | init_sal (&sr_sal); | |
1738 | sr_sal.pc = sal.pc; | |
1739 | sr_sal.pspace = get_frame_program_space (frame); | |
1740 | insert_step_resume_breakpoint_at_sal (gdbarch, | |
1741 | sr_sal, null_frame_id); | |
a6d9a66e | 1742 | |
64ce06e4 | 1743 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
b2175913 MS |
1744 | } |
1745 | else | |
b2175913 | 1746 | { |
9da8c2a0 PA |
1747 | /* We're almost there -- we just need to back up by one more |
1748 | single-step. */ | |
16c381f0 | 1749 | tp->control.step_range_start = tp->control.step_range_end = 1; |
64ce06e4 | 1750 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
b2175913 | 1751 | } |
b2175913 MS |
1752 | } |
1753 | ||
1754 | /* finish_forward -- helper function for finish_command. */ | |
1755 | ||
1756 | static void | |
1757 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1758 | { | |
def166f6 | 1759 | struct frame_id frame_id = get_frame_id (frame); |
a6d9a66e | 1760 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1761 | struct symtab_and_line sal; |
1762 | struct thread_info *tp = inferior_thread (); | |
1763 | struct breakpoint *breakpoint; | |
8a6c4031 | 1764 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); |
b2175913 | 1765 | struct finish_command_continuation_args *cargs; |
186c406b | 1766 | int thread = tp->num; |
8a6c4031 | 1767 | struct dummy_frame_context_saver *saver = NULL; |
b2175913 MS |
1768 | |
1769 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1770 | sal.pc = get_frame_pc (frame); | |
1771 | ||
8a6c4031 JK |
1772 | if (get_frame_type (frame) == DUMMY_FRAME) |
1773 | { | |
1774 | saver = dummy_frame_context_saver_setup (get_stack_frame_id (frame), | |
1775 | inferior_ptid); | |
1776 | make_cleanup (dummy_frame_context_saver_cleanup, saver); | |
1777 | } | |
1778 | ||
a6d9a66e UW |
1779 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1780 | get_stack_frame_id (frame), | |
b2175913 MS |
1781 | bp_finish); |
1782 | ||
c70a6932 JK |
1783 | /* set_momentary_breakpoint invalidates FRAME. */ |
1784 | frame = NULL; | |
1785 | ||
8a6c4031 | 1786 | make_cleanup_delete_breakpoint (breakpoint); |
b2175913 | 1787 | |
def166f6 | 1788 | set_longjmp_breakpoint (tp, frame_id); |
186c406b TT |
1789 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
1790 | ||
46c03469 | 1791 | /* We want to print return value, please... */ |
16c381f0 | 1792 | tp->control.proceed_to_finish = 1; |
8d749320 | 1793 | cargs = XNEW (struct finish_command_continuation_args); |
b2175913 | 1794 | |
fa4cd53f | 1795 | cargs->thread = thread; |
b2175913 MS |
1796 | cargs->breakpoint = breakpoint; |
1797 | cargs->function = function; | |
8a6c4031 | 1798 | cargs->ctx_saver = saver; |
b2175913 MS |
1799 | add_continuation (tp, finish_command_continuation, cargs, |
1800 | finish_command_continuation_free_arg); | |
64ce06e4 | 1801 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
b2175913 MS |
1802 | |
1803 | discard_cleanups (old_chain); | |
1804 | if (!target_can_async_p ()) | |
fa4cd53f | 1805 | do_all_continuations (0); |
b2175913 MS |
1806 | } |
1807 | ||
f941662f MK |
1808 | /* "finish": Set a temporary breakpoint at the place the selected |
1809 | frame will return to, then continue. */ | |
c906108c SS |
1810 | |
1811 | static void | |
fba45db2 | 1812 | finish_command (char *arg, int from_tty) |
c906108c | 1813 | { |
52f0bd74 AC |
1814 | struct frame_info *frame; |
1815 | struct symbol *function; | |
6c4486e6 PA |
1816 | int async_exec; |
1817 | struct cleanup *args_chain; | |
43ff13b4 | 1818 | |
4247603b | 1819 | ERROR_NO_INFERIOR; |
573cda03 | 1820 | ensure_not_tfind_mode (); |
4247603b PA |
1821 | ensure_valid_thread (); |
1822 | ensure_not_running (); | |
573cda03 | 1823 | |
f941662f | 1824 | /* Find out whether we must run in the background. */ |
6c4486e6 PA |
1825 | arg = strip_bg_char (arg, &async_exec); |
1826 | args_chain = make_cleanup (xfree, arg); | |
43ff13b4 | 1827 | |
8bc2fe48 | 1828 | prepare_execution_command (¤t_target, async_exec); |
c906108c SS |
1829 | |
1830 | if (arg) | |
8a3fe4f8 | 1831 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1832 | |
6c4486e6 PA |
1833 | /* Done with ARGS. */ |
1834 | do_cleanups (args_chain); | |
1835 | ||
206415a3 | 1836 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1837 | if (frame == 0) |
8a3fe4f8 | 1838 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c | 1839 | |
70509625 | 1840 | clear_proceed_status (0); |
c906108c | 1841 | |
edb3359d DJ |
1842 | /* Finishing from an inline frame is completely different. We don't |
1843 | try to show the "return value" - no way to locate it. So we do | |
1844 | not need a completion. */ | |
1845 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1846 | == INLINE_FRAME) | |
1847 | { | |
1848 | /* Claim we are stepping in the calling frame. An empty step | |
1849 | range means that we will stop once we aren't in a function | |
1850 | called by that frame. We don't use the magic "1" value for | |
1851 | step_range_end, because then infrun will think this is nexti, | |
1852 | and not step over the rest of this inlined function call. */ | |
1853 | struct thread_info *tp = inferior_thread (); | |
1854 | struct symtab_and_line empty_sal; | |
abbb1732 | 1855 | |
edb3359d DJ |
1856 | init_sal (&empty_sal); |
1857 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1858 | tp->control.step_range_start = get_frame_pc (frame); |
1859 | tp->control.step_range_end = tp->control.step_range_start; | |
1860 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1861 | |
1862 | /* Print info on the selected frame, including level number but not | |
1863 | source. */ | |
1864 | if (from_tty) | |
1865 | { | |
1866 | printf_filtered (_("Run till exit from ")); | |
08d72866 | 1867 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); |
edb3359d DJ |
1868 | } |
1869 | ||
64ce06e4 | 1870 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
edb3359d DJ |
1871 | return; |
1872 | } | |
1873 | ||
1ab3b62c JK |
1874 | /* Ignore TAILCALL_FRAME type frames, they were executed already before |
1875 | entering THISFRAME. */ | |
1876 | while (get_frame_type (frame) == TAILCALL_FRAME) | |
1877 | frame = get_prev_frame (frame); | |
1878 | ||
c906108c SS |
1879 | /* Find the function we will return from. */ |
1880 | ||
206415a3 | 1881 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1882 | |
f941662f MK |
1883 | /* Print info on the selected frame, including level number but not |
1884 | source. */ | |
c906108c SS |
1885 | if (from_tty) |
1886 | { | |
b2175913 MS |
1887 | if (execution_direction == EXEC_REVERSE) |
1888 | printf_filtered (_("Run back to call of ")); | |
1889 | else | |
743649fd MW |
1890 | { |
1891 | if (function != NULL && TYPE_NO_RETURN (function->type) | |
1892 | && !query (_("warning: Function %s does not return normally.\n" | |
1893 | "Try to finish anyway? "), | |
1894 | SYMBOL_PRINT_NAME (function))) | |
1895 | error (_("Not confirmed.")); | |
1896 | printf_filtered (_("Run till exit from ")); | |
1897 | } | |
b2175913 | 1898 | |
08d72866 | 1899 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); |
c906108c SS |
1900 | } |
1901 | ||
b2175913 MS |
1902 | if (execution_direction == EXEC_REVERSE) |
1903 | finish_backward (function); | |
1904 | else | |
1905 | finish_forward (function, frame); | |
c906108c SS |
1906 | } |
1907 | \f | |
f941662f | 1908 | |
c906108c | 1909 | static void |
fba45db2 | 1910 | program_info (char *args, int from_tty) |
c906108c | 1911 | { |
347bddb7 PA |
1912 | bpstat bs; |
1913 | int num, stat; | |
1914 | struct thread_info *tp; | |
1915 | ptid_t ptid; | |
c5aa993b | 1916 | |
c906108c SS |
1917 | if (!target_has_execution) |
1918 | { | |
a3f17187 | 1919 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1920 | return; |
1921 | } | |
1922 | ||
347bddb7 PA |
1923 | if (non_stop) |
1924 | ptid = inferior_ptid; | |
1925 | else | |
1926 | { | |
1927 | struct target_waitstatus ws; | |
abbb1732 | 1928 | |
347bddb7 PA |
1929 | get_last_target_status (&ptid, &ws); |
1930 | } | |
1931 | ||
1932 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1933 | error (_("Invalid selected thread.")); | |
1934 | else if (is_running (ptid)) | |
1935 | error (_("Selected thread is running.")); | |
1936 | ||
e09875d4 | 1937 | tp = find_thread_ptid (ptid); |
16c381f0 | 1938 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1939 | stat = bpstat_num (&bs, &num); |
1940 | ||
c906108c | 1941 | target_files_info (); |
5af949e3 | 1942 | printf_filtered (_("Program stopped at %s.\n"), |
f5656ead | 1943 | paddress (target_gdbarch (), stop_pc)); |
16c381f0 | 1944 | if (tp->control.stop_step) |
a3f17187 | 1945 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1946 | else if (stat != 0) |
c906108c SS |
1947 | { |
1948 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1949 | isn't as strange as it seems. */ |
8671a17b | 1950 | while (stat != 0) |
c906108c | 1951 | { |
8671a17b | 1952 | if (stat < 0) |
c906108c | 1953 | { |
3e43a32a MS |
1954 | printf_filtered (_("It stopped at a breakpoint " |
1955 | "that has since been deleted.\n")); | |
c906108c SS |
1956 | } |
1957 | else | |
a3f17187 | 1958 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1959 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1960 | } |
1961 | } | |
a493e3e2 | 1962 | else if (tp->suspend.stop_signal != GDB_SIGNAL_0) |
c906108c | 1963 | { |
a3f17187 | 1964 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2ea28649 PA |
1965 | gdb_signal_to_name (tp->suspend.stop_signal), |
1966 | gdb_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1967 | } |
1968 | ||
0d41ba00 | 1969 | if (from_tty) |
c906108c | 1970 | { |
3e43a32a MS |
1971 | printf_filtered (_("Type \"info stack\" or \"info " |
1972 | "registers\" for more information.\n")); | |
c906108c SS |
1973 | } |
1974 | } | |
1975 | \f | |
1976 | static void | |
fba45db2 | 1977 | environment_info (char *var, int from_tty) |
c906108c SS |
1978 | { |
1979 | if (var) | |
1980 | { | |
3f81c18a | 1981 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1982 | |
c906108c SS |
1983 | if (val) |
1984 | { | |
1985 | puts_filtered (var); | |
1986 | puts_filtered (" = "); | |
1987 | puts_filtered (val); | |
1988 | puts_filtered ("\n"); | |
1989 | } | |
1990 | else | |
1991 | { | |
1992 | puts_filtered ("Environment variable \""); | |
1993 | puts_filtered (var); | |
1994 | puts_filtered ("\" not defined.\n"); | |
1995 | } | |
1996 | } | |
1997 | else | |
1998 | { | |
3f81c18a | 1999 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 2000 | |
c906108c SS |
2001 | while (*vector) |
2002 | { | |
2003 | puts_filtered (*vector++); | |
2004 | puts_filtered ("\n"); | |
2005 | } | |
2006 | } | |
2007 | } | |
2008 | ||
2009 | static void | |
fba45db2 | 2010 | set_environment_command (char *arg, int from_tty) |
c906108c | 2011 | { |
52f0bd74 | 2012 | char *p, *val, *var; |
c906108c SS |
2013 | int nullset = 0; |
2014 | ||
2015 | if (arg == 0) | |
e2e0b3e5 | 2016 | error_no_arg (_("environment variable and value")); |
c906108c | 2017 | |
1777feb0 | 2018 | /* Find seperation between variable name and value. */ |
c906108c SS |
2019 | p = (char *) strchr (arg, '='); |
2020 | val = (char *) strchr (arg, ' '); | |
2021 | ||
2022 | if (p != 0 && val != 0) | |
2023 | { | |
2024 | /* We have both a space and an equals. If the space is before the | |
c5aa993b | 2025 | equals, walk forward over the spaces til we see a nonspace |
1777feb0 | 2026 | (possibly the equals). */ |
c906108c SS |
2027 | if (p > val) |
2028 | while (*val == ' ') | |
2029 | val++; | |
2030 | ||
2031 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 2032 | take the char following the spaces. */ |
c906108c SS |
2033 | if (p > val) |
2034 | p = val - 1; | |
2035 | } | |
2036 | else if (val != 0 && p == 0) | |
2037 | p = val; | |
2038 | ||
2039 | if (p == arg) | |
e2e0b3e5 | 2040 | error_no_arg (_("environment variable to set")); |
c906108c SS |
2041 | |
2042 | if (p == 0 || p[1] == 0) | |
2043 | { | |
2044 | nullset = 1; | |
2045 | if (p == 0) | |
1777feb0 | 2046 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
2047 | } |
2048 | else | |
2049 | { | |
1777feb0 | 2050 | /* Not setting variable value to null. */ |
c906108c SS |
2051 | val = p + 1; |
2052 | while (*val == ' ' || *val == '\t') | |
2053 | val++; | |
2054 | } | |
2055 | ||
c5aa993b JM |
2056 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
2057 | p--; | |
c906108c SS |
2058 | |
2059 | var = savestring (arg, p - arg); | |
2060 | if (nullset) | |
2061 | { | |
3e43a32a MS |
2062 | printf_filtered (_("Setting environment variable " |
2063 | "\"%s\" to null value.\n"), | |
a3f17187 | 2064 | var); |
3f81c18a | 2065 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
2066 | } |
2067 | else | |
3f81c18a | 2068 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 2069 | xfree (var); |
c906108c SS |
2070 | } |
2071 | ||
2072 | static void | |
fba45db2 | 2073 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
2074 | { |
2075 | if (var == 0) | |
2076 | { | |
2077 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 2078 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 2079 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 2080 | { |
3f81c18a VP |
2081 | free_environ (current_inferior ()->environment); |
2082 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
2083 | } |
2084 | } | |
2085 | else | |
3f81c18a | 2086 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
2087 | } |
2088 | ||
1777feb0 | 2089 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
2090 | |
2091 | static const char path_var_name[] = "PATH"; | |
2092 | ||
c906108c | 2093 | static void |
fba45db2 | 2094 | path_info (char *args, int from_tty) |
c906108c SS |
2095 | { |
2096 | puts_filtered ("Executable and object file path: "); | |
3e43a32a MS |
2097 | puts_filtered (get_in_environ (current_inferior ()->environment, |
2098 | path_var_name)); | |
c906108c SS |
2099 | puts_filtered ("\n"); |
2100 | } | |
2101 | ||
2102 | /* Add zero or more directories to the front of the execution path. */ | |
2103 | ||
2104 | static void | |
fba45db2 | 2105 | path_command (char *dirname, int from_tty) |
c906108c SS |
2106 | { |
2107 | char *exec_path; | |
2108 | char *env; | |
abbb1732 | 2109 | |
c906108c | 2110 | dont_repeat (); |
3f81c18a | 2111 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
1777feb0 | 2112 | /* Can be null if path is not set. */ |
c906108c SS |
2113 | if (!env) |
2114 | env = ""; | |
4fcf66da | 2115 | exec_path = xstrdup (env); |
c906108c | 2116 | mod_path (dirname, &exec_path); |
3f81c18a | 2117 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 2118 | xfree (exec_path); |
c906108c | 2119 | if (from_tty) |
c5aa993b | 2120 | path_info ((char *) NULL, from_tty); |
c906108c | 2121 | } |
c906108c | 2122 | \f |
c5aa993b | 2123 | |
1292279a PA |
2124 | /* Print out the register NAME with value VAL, to FILE, in the default |
2125 | fashion. */ | |
2126 | ||
2127 | static void | |
2128 | default_print_one_register_info (struct ui_file *file, | |
2129 | const char *name, | |
2130 | struct value *val) | |
2131 | { | |
2132 | struct type *regtype = value_type (val); | |
f69d9aef | 2133 | int print_raw_format; |
1292279a PA |
2134 | |
2135 | fputs_filtered (name, file); | |
2136 | print_spaces_filtered (15 - strlen (name), file); | |
2137 | ||
f69d9aef AB |
2138 | print_raw_format = (value_entirely_available (val) |
2139 | && !value_optimized_out (val)); | |
1292279a PA |
2140 | |
2141 | /* If virtual format is floating, print it that way, and in raw | |
2142 | hex. */ | |
2143 | if (TYPE_CODE (regtype) == TYPE_CODE_FLT | |
2144 | || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT) | |
2145 | { | |
2146 | int j; | |
2147 | struct value_print_options opts; | |
2148 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
2149 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (regtype)); | |
2150 | ||
2151 | get_user_print_options (&opts); | |
2152 | opts.deref_ref = 1; | |
2153 | ||
2154 | val_print (regtype, | |
2155 | value_contents_for_printing (val), | |
2156 | value_embedded_offset (val), 0, | |
2157 | file, 0, val, &opts, current_language); | |
2158 | ||
f69d9aef AB |
2159 | if (print_raw_format) |
2160 | { | |
2161 | fprintf_filtered (file, "\t(raw "); | |
2162 | print_hex_chars (file, valaddr, TYPE_LENGTH (regtype), byte_order); | |
2163 | fprintf_filtered (file, ")"); | |
2164 | } | |
1292279a PA |
2165 | } |
2166 | else | |
2167 | { | |
2168 | struct value_print_options opts; | |
2169 | ||
2170 | /* Print the register in hex. */ | |
2171 | get_formatted_print_options (&opts, 'x'); | |
2172 | opts.deref_ref = 1; | |
2173 | val_print (regtype, | |
2174 | value_contents_for_printing (val), | |
2175 | value_embedded_offset (val), 0, | |
2176 | file, 0, val, &opts, current_language); | |
2177 | /* If not a vector register, print it also according to its | |
2178 | natural format. */ | |
f69d9aef | 2179 | if (print_raw_format && TYPE_VECTOR (regtype) == 0) |
1292279a PA |
2180 | { |
2181 | get_user_print_options (&opts); | |
2182 | opts.deref_ref = 1; | |
2183 | fprintf_filtered (file, "\t"); | |
2184 | val_print (regtype, | |
2185 | value_contents_for_printing (val), | |
2186 | value_embedded_offset (val), 0, | |
2187 | file, 0, val, &opts, current_language); | |
2188 | } | |
2189 | } | |
2190 | ||
2191 | fprintf_filtered (file, "\n"); | |
2192 | } | |
2193 | ||
1777feb0 | 2194 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
2195 | registers (print_all == 1) or all non-float and non-vector |
2196 | registers (print_all == 0). | |
c906108c SS |
2197 | |
2198 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
2199 | register(s) one per line is good enough. If a different format is |
2200 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
2201 | regs), or there is an existing convention for showing all the | |
2202 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
2203 | provide that format. */ | |
c906108c | 2204 | |
666e11c5 | 2205 | void |
0ab7a791 AC |
2206 | default_print_registers_info (struct gdbarch *gdbarch, |
2207 | struct ui_file *file, | |
2208 | struct frame_info *frame, | |
2209 | int regnum, int print_all) | |
c906108c | 2210 | { |
0ab7a791 | 2211 | int i; |
a4bd449d UW |
2212 | const int numregs = gdbarch_num_regs (gdbarch) |
2213 | + gdbarch_num_pseudo_regs (gdbarch); | |
0ab7a791 | 2214 | |
c906108c SS |
2215 | for (i = 0; i < numregs; i++) |
2216 | { | |
4782dc19 AC |
2217 | /* Decide between printing all regs, non-float / vector regs, or |
2218 | specific reg. */ | |
c5aa993b JM |
2219 | if (regnum == -1) |
2220 | { | |
f9418c0f | 2221 | if (print_all) |
4782dc19 | 2222 | { |
f9418c0f | 2223 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 2224 | continue; |
f9418c0f AC |
2225 | } |
2226 | else | |
2227 | { | |
2228 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
2229 | continue; |
2230 | } | |
c5aa993b JM |
2231 | } |
2232 | else | |
2233 | { | |
2234 | if (i != regnum) | |
2235 | continue; | |
2236 | } | |
c906108c SS |
2237 | |
2238 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 2239 | processor, so don't display anything. */ |
a4bd449d UW |
2240 | if (gdbarch_register_name (gdbarch, i) == NULL |
2241 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
2242 | continue; |
2243 | ||
1292279a PA |
2244 | default_print_one_register_info (file, |
2245 | gdbarch_register_name (gdbarch, i), | |
901461f8 | 2246 | value_of_register (i, frame)); |
c906108c SS |
2247 | } |
2248 | } | |
c906108c | 2249 | |
c906108c | 2250 | void |
fba45db2 | 2251 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2252 | { |
206415a3 | 2253 | struct frame_info *frame; |
a4bd449d | 2254 | struct gdbarch *gdbarch; |
c906108c SS |
2255 | |
2256 | if (!target_has_registers) | |
8a3fe4f8 | 2257 | error (_("The program has no registers now.")); |
206415a3 | 2258 | frame = get_selected_frame (NULL); |
a4bd449d | 2259 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2260 | |
2261 | if (!addr_exp) | |
2262 | { | |
a4bd449d | 2263 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2264 | frame, -1, fpregs); |
c906108c SS |
2265 | return; |
2266 | } | |
2267 | ||
f9418c0f | 2268 | while (*addr_exp != '\0') |
c5aa993b | 2269 | { |
f9418c0f AC |
2270 | char *start; |
2271 | const char *end; | |
c906108c | 2272 | |
529480d0 KS |
2273 | /* Skip leading white space. */ |
2274 | addr_exp = skip_spaces (addr_exp); | |
c906108c | 2275 | |
f9418c0f AC |
2276 | /* Discard any leading ``$''. Check that there is something |
2277 | resembling a register following it. */ | |
2278 | if (addr_exp[0] == '$') | |
2279 | addr_exp++; | |
2280 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2281 | error (_("Missing register name")); |
c906108c | 2282 | |
f9418c0f AC |
2283 | /* Find the start/end of this register name/num/group. */ |
2284 | start = addr_exp; | |
2285 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2286 | addr_exp++; | |
2287 | end = addr_exp; | |
ad842144 | 2288 | |
f9418c0f AC |
2289 | /* Figure out what we've found and display it. */ |
2290 | ||
2291 | /* A register name? */ | |
2292 | { | |
029a67e4 | 2293 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2294 | |
f9418c0f AC |
2295 | if (regnum >= 0) |
2296 | { | |
ad842144 MR |
2297 | /* User registers lie completely outside of the range of |
2298 | normal registers. Catch them early so that the target | |
2299 | never sees them. */ | |
2300 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2301 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2302 | { | |
1292279a PA |
2303 | struct value *regval = value_of_user_reg (regnum, frame); |
2304 | const char *regname = user_reg_map_regnum_to_name (gdbarch, | |
2305 | regnum); | |
2306 | ||
2307 | /* Print in the same fashion | |
2308 | gdbarch_print_registers_info's default | |
2309 | implementation prints. */ | |
2310 | default_print_one_register_info (gdb_stdout, | |
2311 | regname, | |
2312 | regval); | |
ad842144 MR |
2313 | } |
2314 | else | |
2315 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2316 | frame, regnum, fpregs); | |
f9418c0f AC |
2317 | continue; |
2318 | } | |
2319 | } | |
ad842144 | 2320 | |
f9418c0f AC |
2321 | /* A register group? */ |
2322 | { | |
6c7d17ba | 2323 | struct reggroup *group; |
abbb1732 | 2324 | |
a4bd449d | 2325 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2326 | group != NULL; |
a4bd449d | 2327 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2328 | { |
2329 | /* Don't bother with a length check. Should the user | |
2330 | enter a short register group name, go with the first | |
2331 | group that matches. */ | |
6c7d17ba | 2332 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2333 | break; |
2334 | } | |
6c7d17ba | 2335 | if (group != NULL) |
f9418c0f AC |
2336 | { |
2337 | int regnum; | |
abbb1732 | 2338 | |
f57d151a | 2339 | for (regnum = 0; |
a4bd449d UW |
2340 | regnum < gdbarch_num_regs (gdbarch) |
2341 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2342 | regnum++) |
f9418c0f | 2343 | { |
a4bd449d UW |
2344 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2345 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2346 | gdb_stdout, frame, |
f9418c0f AC |
2347 | regnum, fpregs); |
2348 | } | |
2349 | continue; | |
2350 | } | |
2351 | } | |
c906108c | 2352 | |
f9418c0f | 2353 | /* Nothing matched. */ |
8a3fe4f8 | 2354 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2355 | } |
c906108c SS |
2356 | } |
2357 | ||
1dd5fedc | 2358 | static void |
fba45db2 | 2359 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2360 | { |
2361 | registers_info (addr_exp, 1); | |
2362 | } | |
2363 | ||
a58dd373 | 2364 | static void |
fba45db2 | 2365 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2366 | { |
2367 | registers_info (addr_exp, 0); | |
2368 | } | |
e76f1f2e AC |
2369 | |
2370 | static void | |
d80b854b | 2371 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2372 | struct frame_info *frame, const char *args) |
2373 | { | |
d80b854b UW |
2374 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2375 | ||
e76f1f2e AC |
2376 | if (gdbarch_print_vector_info_p (gdbarch)) |
2377 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2378 | else | |
2379 | { | |
2380 | int regnum; | |
2381 | int printed_something = 0; | |
ab4327e0 | 2382 | |
f57d151a | 2383 | for (regnum = 0; |
a4bd449d UW |
2384 | regnum < gdbarch_num_regs (gdbarch) |
2385 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2386 | regnum++) |
e76f1f2e | 2387 | { |
f9418c0f | 2388 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2389 | { |
2390 | printed_something = 1; | |
e76f1f2e | 2391 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2392 | } |
2393 | } | |
2394 | if (!printed_something) | |
2395 | fprintf_filtered (file, "No vector information\n"); | |
2396 | } | |
2397 | } | |
2398 | ||
2399 | static void | |
2400 | vector_info (char *args, int from_tty) | |
2401 | { | |
206415a3 DJ |
2402 | if (!target_has_registers) |
2403 | error (_("The program has no registers now.")); | |
2404 | ||
d80b854b | 2405 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2406 | } |
c906108c | 2407 | \f |
5fd62852 PA |
2408 | /* Kill the inferior process. Make us have no inferior. */ |
2409 | ||
2410 | static void | |
2411 | kill_command (char *arg, int from_tty) | |
2412 | { | |
2413 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2414 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2415 | some targets don't have processes! */ |
5fd62852 PA |
2416 | |
2417 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2418 | error (_("The program is not being run.")); | |
2419 | if (!query (_("Kill the program being debugged? "))) | |
2420 | error (_("Not confirmed.")); | |
2421 | target_kill (); | |
2422 | ||
c35b1492 PA |
2423 | /* If we still have other inferiors to debug, then don't mess with |
2424 | with their threads. */ | |
2425 | if (!have_inferiors ()) | |
5fd62852 | 2426 | { |
1777feb0 | 2427 | init_thread_list (); /* Destroy thread info. */ |
5fd62852 PA |
2428 | |
2429 | /* Killing off the inferior can leave us with a core file. If | |
2430 | so, print the state we are left in. */ | |
2431 | if (target_has_stack) | |
2432 | { | |
2433 | printf_filtered (_("In %s,\n"), target_longname); | |
08d72866 | 2434 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
5fd62852 PA |
2435 | } |
2436 | } | |
2437 | bfd_cache_close_all (); | |
2438 | } | |
c5aa993b | 2439 | |
74531fed PA |
2440 | /* Used in `attach&' command. ARG is a point to an integer |
2441 | representing a process id. Proceed threads of this process iff | |
2442 | they stopped due to debugger request, and when they did, they | |
a493e3e2 | 2443 | reported a clean stop (GDB_SIGNAL_0). Do not proceed threads |
74531fed PA |
2444 | that have been explicitly been told to stop. */ |
2445 | ||
2446 | static int | |
2447 | proceed_after_attach_callback (struct thread_info *thread, | |
2448 | void *arg) | |
2449 | { | |
2450 | int pid = * (int *) arg; | |
2451 | ||
2452 | if (ptid_get_pid (thread->ptid) == pid | |
2453 | && !is_exited (thread->ptid) | |
2454 | && !is_executing (thread->ptid) | |
2455 | && !thread->stop_requested | |
a493e3e2 | 2456 | && thread->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed PA |
2457 | { |
2458 | switch_to_thread (thread->ptid); | |
70509625 | 2459 | clear_proceed_status (0); |
64ce06e4 | 2460 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
74531fed PA |
2461 | } |
2462 | ||
2463 | return 0; | |
2464 | } | |
2465 | ||
2466 | static void | |
2467 | proceed_after_attach (int pid) | |
2468 | { | |
2469 | /* Don't error out if the current thread is running, because | |
2470 | there may be other stopped threads. */ | |
2471 | struct cleanup *old_chain; | |
2472 | ||
2473 | /* Backup current thread and selected frame. */ | |
2474 | old_chain = make_cleanup_restore_current_thread (); | |
2475 | ||
2476 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2477 | ||
2478 | /* Restore selected ptid. */ | |
2479 | do_cleanups (old_chain); | |
2480 | } | |
2481 | ||
1777feb0 | 2482 | /* attach_command -- |
c906108c SS |
2483 | takes a program started up outside of gdb and ``attaches'' to it. |
2484 | This stops it cold in its tracks and allows us to start debugging it. | |
2485 | and wait for the trace-trap that results from attaching. */ | |
2486 | ||
9356cf8d PA |
2487 | static void |
2488 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2489 | { | |
d6b48e9c | 2490 | struct inferior *inferior; |
9356cf8d | 2491 | |
d6b48e9c | 2492 | inferior = current_inferior (); |
16c381f0 | 2493 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2494 | |
2495 | /* If no exec file is yet known, try to determine it from the | |
2496 | process itself. */ | |
a10de604 GB |
2497 | if (get_exec_file (0) == NULL) |
2498 | exec_file_locate_attach (ptid_get_pid (inferior_ptid), from_tty); | |
9356cf8d PA |
2499 | else |
2500 | { | |
2501 | reopen_exec_file (); | |
2502 | reread_symbols (); | |
2503 | } | |
2504 | ||
2505 | /* Take any necessary post-attaching actions for this platform. */ | |
dfd4cc63 | 2506 | target_post_attach (ptid_get_pid (inferior_ptid)); |
9356cf8d PA |
2507 | |
2508 | post_create_inferior (¤t_target, from_tty); | |
2509 | ||
9356cf8d | 2510 | if (async_exec) |
74531fed PA |
2511 | { |
2512 | /* The user requested an `attach&', so be sure to leave threads | |
2513 | that didn't get a signal running. */ | |
2514 | ||
2515 | /* Immediatelly resume all suspended threads of this inferior, | |
2516 | and this inferior only. This should have no effect on | |
2517 | already running threads. If a thread has been stopped with a | |
2518 | signal, leave it be. */ | |
2519 | if (non_stop) | |
2520 | proceed_after_attach (inferior->pid); | |
2521 | else | |
2522 | { | |
a493e3e2 | 2523 | if (inferior_thread ()->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed | 2524 | { |
70509625 | 2525 | clear_proceed_status (0); |
64ce06e4 | 2526 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT); |
74531fed PA |
2527 | } |
2528 | } | |
2529 | } | |
9356cf8d PA |
2530 | else |
2531 | { | |
74531fed PA |
2532 | /* The user requested a plain `attach', so be sure to leave |
2533 | the inferior stopped. */ | |
2534 | ||
9356cf8d PA |
2535 | if (target_can_async_p ()) |
2536 | async_enable_stdin (); | |
74531fed PA |
2537 | |
2538 | /* At least the current thread is already stopped. */ | |
2539 | ||
2540 | /* In all-stop, by definition, all threads have to be already | |
2541 | stopped at this point. In non-stop, however, although the | |
2542 | selected thread is stopped, others may still be executing. | |
2543 | Be sure to explicitly stop all threads of the process. This | |
2544 | should have no effect on already stopped threads. */ | |
fbea99ea | 2545 | if (target_is_non_stop_p ()) |
74531fed PA |
2546 | target_stop (pid_to_ptid (inferior->pid)); |
2547 | ||
2548 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2549 | normal_stop (); |
2550 | if (deprecated_attach_hook) | |
2551 | deprecated_attach_hook (); | |
2552 | } | |
2553 | } | |
2554 | ||
bfec99b2 | 2555 | struct attach_command_continuation_args |
9356cf8d PA |
2556 | { |
2557 | char *args; | |
2558 | int from_tty; | |
2559 | int async_exec; | |
bfec99b2 | 2560 | }; |
9356cf8d | 2561 | |
bfec99b2 | 2562 | static void |
fa4cd53f | 2563 | attach_command_continuation (void *args, int err) |
bfec99b2 PA |
2564 | { |
2565 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2566 | |
fa4cd53f PA |
2567 | if (err) |
2568 | return; | |
2569 | ||
bfec99b2 | 2570 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2571 | } |
2572 | ||
604ead4a PA |
2573 | static void |
2574 | attach_command_continuation_free_args (void *args) | |
2575 | { | |
2576 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2577 | |
604ead4a PA |
2578 | xfree (a->args); |
2579 | xfree (a); | |
2580 | } | |
2581 | ||
c906108c | 2582 | void |
fba45db2 | 2583 | attach_command (char *args, int from_tty) |
c906108c | 2584 | { |
6c4486e6 PA |
2585 | int async_exec; |
2586 | struct cleanup *args_chain; | |
b3ccfe11 | 2587 | struct target_ops *attach_target; |
c906108c | 2588 | |
c5aa993b | 2589 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2590 | |
f5656ead | 2591 | if (gdbarch_has_global_solist (target_gdbarch ())) |
2567c7d9 PA |
2592 | /* Don't complain if all processes share the same symbol |
2593 | space. */ | |
8a305172 PA |
2594 | ; |
2595 | else if (target_has_execution) | |
c906108c | 2596 | { |
9e2f0ad4 | 2597 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2598 | target_kill (); |
2599 | else | |
8a3fe4f8 | 2600 | error (_("Not killed.")); |
c906108c SS |
2601 | } |
2602 | ||
fd79ecee DJ |
2603 | /* Clean up any leftovers from other runs. Some other things from |
2604 | this function should probably be moved into target_pre_inferior. */ | |
2605 | target_pre_inferior (from_tty); | |
2606 | ||
6c4486e6 PA |
2607 | args = strip_bg_char (args, &async_exec); |
2608 | args_chain = make_cleanup (xfree, args); | |
8bc2fe48 | 2609 | |
b3ccfe11 TT |
2610 | attach_target = find_attach_target (); |
2611 | ||
8bc2fe48 PA |
2612 | prepare_execution_command (attach_target, async_exec); |
2613 | ||
b3ccfe11 | 2614 | if (non_stop && !attach_target->to_supports_non_stop (attach_target)) |
9908b566 VP |
2615 | error (_("Cannot attach to this target in non-stop mode")); |
2616 | ||
b3ccfe11 TT |
2617 | attach_target->to_attach (attach_target, args, from_tty); |
2618 | /* to_attach should push the target, so after this point we | |
2619 | shouldn't refer to attach_target again. */ | |
2620 | attach_target = NULL; | |
c906108c SS |
2621 | |
2622 | /* Set up the "saved terminal modes" of the inferior | |
2623 | based on what modes we are starting it with. */ | |
2624 | target_terminal_init (); | |
2625 | ||
7180e04a PA |
2626 | /* Install inferior's terminal modes. This may look like a no-op, |
2627 | as we've just saved them above, however, this does more than | |
2628 | restore terminal settings: | |
2629 | ||
2630 | - installs a SIGINT handler that forwards SIGINT to the inferior. | |
2631 | Otherwise a Ctrl-C pressed just while waiting for the initial | |
2632 | stop would end up as a spurious Quit. | |
2633 | ||
2634 | - removes stdin from the event loop, which we need if attaching | |
2635 | in the foreground, otherwise on targets that report an initial | |
2636 | stop on attach (which are most) we'd process input/commands | |
2637 | while we're in the event loop waiting for that stop. That is, | |
2638 | before the attach continuation runs and the command is really | |
2639 | finished. */ | |
2640 | target_terminal_inferior (); | |
2641 | ||
c906108c SS |
2642 | /* Set up execution context to know that we should return from |
2643 | wait_for_inferior as soon as the target reports a stop. */ | |
2644 | init_wait_for_inferior (); | |
70509625 | 2645 | clear_proceed_status (0); |
c906108c | 2646 | |
fbea99ea | 2647 | if (target_is_non_stop_p ()) |
74531fed PA |
2648 | { |
2649 | /* If we find that the current thread isn't stopped, explicitly | |
2650 | do so now, because we're going to install breakpoints and | |
2651 | poke at memory. */ | |
2652 | ||
2653 | if (async_exec) | |
2654 | /* The user requested an `attach&'; stop just one thread. */ | |
2655 | target_stop (inferior_ptid); | |
2656 | else | |
2657 | /* The user requested an `attach', so stop all threads of this | |
2658 | inferior. */ | |
2659 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2660 | } | |
2661 | ||
dc177b7a PA |
2662 | /* Some system don't generate traps when attaching to inferior. |
2663 | E.g. Mach 3 or GNU hurd. */ | |
2664 | if (!target_attach_no_wait) | |
c5aa993b | 2665 | { |
d6b48e9c PA |
2666 | struct inferior *inferior = current_inferior (); |
2667 | ||
1777feb0 | 2668 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2669 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2670 | need a way for handle_inferior_event to reset the stop_signal | |
2671 | variable after an attach, and this is what | |
2672 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2673 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2674 | |
dc177b7a PA |
2675 | if (target_can_async_p ()) |
2676 | { | |
2677 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2678 | struct attach_command_continuation_args *a; |
2679 | ||
8d749320 | 2680 | a = XNEW (struct attach_command_continuation_args); |
bfec99b2 PA |
2681 | a->args = xstrdup (args); |
2682 | a->from_tty = from_tty; | |
2683 | a->async_exec = async_exec; | |
e0ba6746 PA |
2684 | add_inferior_continuation (attach_command_continuation, a, |
2685 | attach_command_continuation_free_args); | |
978b9495 JK |
2686 | |
2687 | /* Done with ARGS. */ | |
2688 | do_cleanups (args_chain); | |
2689 | ||
dc177b7a PA |
2690 | return; |
2691 | } | |
c906108c | 2692 | |
e4c8541f | 2693 | wait_for_inferior (); |
dc177b7a | 2694 | } |
6426a772 | 2695 | |
978b9495 JK |
2696 | /* Done with ARGS. */ |
2697 | do_cleanups (args_chain); | |
2698 | ||
9356cf8d | 2699 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2700 | } |
2701 | ||
1941c569 PA |
2702 | /* We had just found out that the target was already attached to an |
2703 | inferior. PTID points at a thread of this new inferior, that is | |
2704 | the most likely to be stopped right now, but not necessarily so. | |
2705 | The new inferior is assumed to be already added to the inferior | |
2706 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2707 | this inferior running, except those we've explicitly seen reported | |
2708 | as stopped. */ | |
2709 | ||
2710 | void | |
2711 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2712 | { | |
2713 | struct cleanup* old_chain; | |
2714 | int async_exec; | |
2715 | ||
2716 | old_chain = make_cleanup (null_cleanup, NULL); | |
2717 | ||
2718 | /* If in non-stop, leave threads as running as they were. If | |
2719 | they're stopped for some reason other than us telling it to, the | |
a493e3e2 | 2720 | target reports a signal != GDB_SIGNAL_0. We don't try to |
1941c569 PA |
2721 | resume threads with such a stop signal. */ |
2722 | async_exec = non_stop; | |
2723 | ||
2724 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2725 | make_cleanup_restore_current_thread (); | |
2726 | ||
2727 | switch_to_thread (ptid); | |
2728 | ||
2729 | /* When we "notice" a new inferior we need to do all the things we | |
2730 | would normally do if we had just attached to it. */ | |
2731 | ||
2732 | if (is_executing (inferior_ptid)) | |
2733 | { | |
2734 | struct inferior *inferior = current_inferior (); | |
2735 | ||
2736 | /* We're going to install breakpoints, and poke at memory, | |
2737 | ensure that the inferior is stopped for a moment while we do | |
2738 | that. */ | |
2739 | target_stop (inferior_ptid); | |
2740 | ||
16c381f0 | 2741 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2742 | |
2743 | /* Wait for stop before proceeding. */ | |
2744 | if (target_can_async_p ()) | |
2745 | { | |
2746 | struct attach_command_continuation_args *a; | |
2747 | ||
8d749320 | 2748 | a = XNEW (struct attach_command_continuation_args); |
1941c569 PA |
2749 | a->args = xstrdup (""); |
2750 | a->from_tty = from_tty; | |
2751 | a->async_exec = async_exec; | |
2752 | add_inferior_continuation (attach_command_continuation, a, | |
2753 | attach_command_continuation_free_args); | |
2754 | ||
2755 | do_cleanups (old_chain); | |
2756 | return; | |
2757 | } | |
2758 | else | |
e4c8541f | 2759 | wait_for_inferior (); |
1941c569 PA |
2760 | } |
2761 | ||
2762 | async_exec = leave_running; | |
2763 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2764 | ||
2765 | do_cleanups (old_chain); | |
2766 | } | |
2767 | ||
c906108c SS |
2768 | /* |
2769 | * detach_command -- | |
2770 | * takes a program previously attached to and detaches it. | |
2771 | * The program resumes execution and will no longer stop | |
2772 | * on signals, etc. We better not have left any breakpoints | |
2773 | * in the program or it'll die when it hits one. For this | |
2774 | * to work, it may be necessary for the process to have been | |
2775 | * previously attached. It *might* work if the program was | |
2776 | * started via the normal ptrace (PTRACE_TRACEME). | |
2777 | */ | |
2778 | ||
6418d433 | 2779 | void |
fba45db2 | 2780 | detach_command (char *args, int from_tty) |
c906108c | 2781 | { |
1f5d0fc9 | 2782 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2783 | |
2784 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2785 | error (_("The program is not being run.")); | |
2786 | ||
2f9d54cf PA |
2787 | query_if_trace_running (from_tty); |
2788 | ||
2789 | disconnect_tracing (); | |
d5551862 | 2790 | |
c906108c | 2791 | target_detach (args, from_tty); |
50c71eaf PA |
2792 | |
2793 | /* If the solist is global across inferiors, don't clear it when we | |
2794 | detach from a single inferior. */ | |
f5656ead | 2795 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf | 2796 | no_shared_libraries (NULL, from_tty); |
8a305172 | 2797 | |
c35b1492 PA |
2798 | /* If we still have inferiors to debug, then don't mess with their |
2799 | threads. */ | |
2800 | if (!have_inferiors ()) | |
8a305172 PA |
2801 | init_thread_list (); |
2802 | ||
9a4105ab AC |
2803 | if (deprecated_detach_hook) |
2804 | deprecated_detach_hook (); | |
c906108c SS |
2805 | } |
2806 | ||
6ad8ae5c DJ |
2807 | /* Disconnect from the current target without resuming it (leaving it |
2808 | waiting for a debugger). | |
2809 | ||
2810 | We'd better not have left any breakpoints in the program or the | |
2811 | next debugger will get confused. Currently only supported for some | |
2812 | remote targets, since the normal attach mechanisms don't work on | |
2813 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2814 | ||
2815 | static void | |
2816 | disconnect_command (char *args, int from_tty) | |
2817 | { | |
1777feb0 | 2818 | dont_repeat (); /* Not for the faint of heart. */ |
2f9d54cf PA |
2819 | query_if_trace_running (from_tty); |
2820 | disconnect_tracing (); | |
6ad8ae5c | 2821 | target_disconnect (args, from_tty); |
e85a822c | 2822 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2823 | init_thread_list (); |
9a4105ab AC |
2824 | if (deprecated_detach_hook) |
2825 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2826 | } |
2827 | ||
77ebaa5a VP |
2828 | void |
2829 | interrupt_target_1 (int all_threads) | |
2830 | { | |
2831 | ptid_t ptid; | |
abbb1732 | 2832 | |
77ebaa5a VP |
2833 | if (all_threads) |
2834 | ptid = minus_one_ptid; | |
2835 | else | |
2836 | ptid = inferior_ptid; | |
bfedc46a | 2837 | target_interrupt (ptid); |
252fbfc8 PA |
2838 | |
2839 | /* Tag the thread as having been explicitly requested to stop, so | |
2840 | other parts of gdb know not to resume this thread automatically, | |
2841 | if it was stopped due to an internal event. Limit this to | |
2842 | non-stop mode, as when debugging a multi-threaded application in | |
2843 | all-stop mode, we will only get one stop event --- it's undefined | |
2844 | which thread will report the event. */ | |
2845 | if (non_stop) | |
2846 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2847 | } |
2848 | ||
6339bfc4 DE |
2849 | /* interrupt [-a] |
2850 | Stop the execution of the target while running in async mode, in | |
8cae4b3f PA |
2851 | the backgound. In all-stop, stop the whole process. In non-stop |
2852 | mode, stop the current thread only by default, or stop all threads | |
2853 | if the `-a' switch is used. */ | |
2854 | ||
1dd5fedc | 2855 | static void |
0a07590b | 2856 | interrupt_command (char *args, int from_tty) |
43ff13b4 | 2857 | { |
362646f5 | 2858 | if (target_can_async_p ()) |
43ff13b4 | 2859 | { |
8cae4b3f PA |
2860 | int all_threads = 0; |
2861 | ||
1777feb0 | 2862 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2863 | |
8cae4b3f | 2864 | if (args != NULL |
61012eef | 2865 | && startswith (args, "-a")) |
8cae4b3f PA |
2866 | all_threads = 1; |
2867 | ||
2868 | if (!non_stop && all_threads) | |
2869 | error (_("-a is meaningless in all-stop mode.")); | |
2870 | ||
77ebaa5a | 2871 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2872 | } |
2873 | } | |
2874 | ||
cc86d1cb YQ |
2875 | /* See inferior.h. */ |
2876 | ||
2877 | void | |
2878 | default_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, | |
2879 | struct frame_info *frame, const char *args) | |
c906108c | 2880 | { |
cc86d1cb YQ |
2881 | int regnum; |
2882 | int printed_something = 0; | |
d80b854b | 2883 | |
cc86d1cb YQ |
2884 | for (regnum = 0; |
2885 | regnum < gdbarch_num_regs (gdbarch) | |
2886 | + gdbarch_num_pseudo_regs (gdbarch); | |
2887 | regnum++) | |
23e3a7ac | 2888 | { |
cc86d1cb | 2889 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac | 2890 | { |
cc86d1cb YQ |
2891 | printed_something = 1; |
2892 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); | |
23e3a7ac | 2893 | } |
23e3a7ac | 2894 | } |
cc86d1cb YQ |
2895 | if (!printed_something) |
2896 | fprintf_filtered (file, "No floating-point info " | |
2897 | "available for this processor.\n"); | |
23e3a7ac AC |
2898 | } |
2899 | ||
2900 | static void | |
2901 | float_info (char *args, int from_tty) | |
2902 | { | |
cc86d1cb YQ |
2903 | struct frame_info *frame; |
2904 | ||
206415a3 DJ |
2905 | if (!target_has_registers) |
2906 | error (_("The program has no registers now.")); | |
2907 | ||
cc86d1cb YQ |
2908 | frame = get_selected_frame (NULL); |
2909 | gdbarch_print_float_info (get_frame_arch (frame), gdb_stdout, frame, args); | |
c906108c SS |
2910 | } |
2911 | \f | |
c906108c | 2912 | static void |
fba45db2 | 2913 | unset_command (char *args, int from_tty) |
c906108c | 2914 | { |
3e43a32a MS |
2915 | printf_filtered (_("\"unset\" must be followed by the " |
2916 | "name of an unset subcommand.\n")); | |
635c7e8a | 2917 | help_list (unsetlist, "unset ", all_commands, gdb_stdout); |
c906108c SS |
2918 | } |
2919 | ||
145b16a9 UW |
2920 | /* Implement `info proc' family of commands. */ |
2921 | ||
2922 | static void | |
2923 | info_proc_cmd_1 (char *args, enum info_proc_what what, int from_tty) | |
2924 | { | |
3030c96e UW |
2925 | struct gdbarch *gdbarch = get_current_arch (); |
2926 | ||
451b7c33 TT |
2927 | if (!target_info_proc (args, what)) |
2928 | { | |
2929 | if (gdbarch_info_proc_p (gdbarch)) | |
2930 | gdbarch_info_proc (gdbarch, args, what); | |
2931 | else | |
2932 | error (_("Not supported on this target.")); | |
2933 | } | |
145b16a9 UW |
2934 | } |
2935 | ||
2936 | /* Implement `info proc' when given without any futher parameters. */ | |
2937 | ||
2938 | static void | |
2939 | info_proc_cmd (char *args, int from_tty) | |
2940 | { | |
2941 | info_proc_cmd_1 (args, IP_MINIMAL, from_tty); | |
2942 | } | |
2943 | ||
2944 | /* Implement `info proc mappings'. */ | |
2945 | ||
2946 | static void | |
2947 | info_proc_cmd_mappings (char *args, int from_tty) | |
2948 | { | |
2949 | info_proc_cmd_1 (args, IP_MAPPINGS, from_tty); | |
2950 | } | |
2951 | ||
2952 | /* Implement `info proc stat'. */ | |
2953 | ||
2954 | static void | |
2955 | info_proc_cmd_stat (char *args, int from_tty) | |
2956 | { | |
2957 | info_proc_cmd_1 (args, IP_STAT, from_tty); | |
2958 | } | |
2959 | ||
2960 | /* Implement `info proc status'. */ | |
2961 | ||
2962 | static void | |
2963 | info_proc_cmd_status (char *args, int from_tty) | |
2964 | { | |
2965 | info_proc_cmd_1 (args, IP_STATUS, from_tty); | |
2966 | } | |
2967 | ||
2968 | /* Implement `info proc cwd'. */ | |
2969 | ||
2970 | static void | |
2971 | info_proc_cmd_cwd (char *args, int from_tty) | |
2972 | { | |
2973 | info_proc_cmd_1 (args, IP_CWD, from_tty); | |
2974 | } | |
2975 | ||
2976 | /* Implement `info proc cmdline'. */ | |
2977 | ||
2978 | static void | |
2979 | info_proc_cmd_cmdline (char *args, int from_tty) | |
2980 | { | |
2981 | info_proc_cmd_1 (args, IP_CMDLINE, from_tty); | |
2982 | } | |
2983 | ||
2984 | /* Implement `info proc exe'. */ | |
2985 | ||
2986 | static void | |
2987 | info_proc_cmd_exe (char *args, int from_tty) | |
2988 | { | |
2989 | info_proc_cmd_1 (args, IP_EXE, from_tty); | |
2990 | } | |
2991 | ||
2992 | /* Implement `info proc all'. */ | |
2993 | ||
2994 | static void | |
2995 | info_proc_cmd_all (char *args, int from_tty) | |
2996 | { | |
2997 | info_proc_cmd_1 (args, IP_ALL, from_tty); | |
2998 | } | |
2999 | ||
c906108c | 3000 | void |
fba45db2 | 3001 | _initialize_infcmd (void) |
c906108c | 3002 | { |
145b16a9 | 3003 | static struct cmd_list_element *info_proc_cmdlist; |
3cb3b8df | 3004 | struct cmd_list_element *c = NULL; |
6f937416 | 3005 | const char *cmd_name; |
3cb3b8df | 3006 | |
1777feb0 | 3007 | /* Add the filename of the terminal connected to inferior I/O. */ |
3cb3b8df | 3008 | add_setshow_filename_cmd ("inferior-tty", class_run, |
3f81c18a | 3009 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
3010 | Set terminal for future runs of program being debugged."), _("\ |
3011 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
3012 | Usage: set inferior-tty /dev/pts/1"), |
3013 | set_inferior_tty_command, | |
3014 | show_inferior_tty_command, | |
3015 | &setlist, &showlist); | |
3cb3b8df | 3016 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 3017 | |
6ace3df1 YQ |
3018 | cmd_name = "args"; |
3019 | add_setshow_string_noescape_cmd (cmd_name, class_run, | |
3020 | &inferior_args_scratch, _("\ | |
b4b4ac0b AC |
3021 | Set argument list to give program being debugged when it is started."), _("\ |
3022 | Show argument list to give program being debugged when it is started."), _("\ | |
3023 | Follow this command with any number of args, to be passed to the program."), | |
6ace3df1 YQ |
3024 | set_args_command, |
3025 | show_args_command, | |
3026 | &setlist, &showlist); | |
3027 | c = lookup_cmd (&cmd_name, setlist, "", -1, 1); | |
3028 | gdb_assert (c != NULL); | |
3029 | set_cmd_completer (c, filename_completer); | |
c906108c | 3030 | |
1a966eab AC |
3031 | c = add_cmd ("environment", no_class, environment_info, _("\ |
3032 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
3033 | With an argument VAR, prints the value of environment variable VAR to\n\ |
3034 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 3035 | environment to be given to the program."), &showlist); |
5ba2abeb | 3036 | set_cmd_completer (c, noop_completer); |
c906108c SS |
3037 | |
3038 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 3039 | _("Complement to certain \"set\" commands."), |
c906108c | 3040 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 3041 | |
1a966eab AC |
3042 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
3043 | Cancel environment variable VAR for the program.\n\ | |
3044 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 3045 | &unsetlist); |
5ba2abeb | 3046 | set_cmd_completer (c, noop_completer); |
c906108c | 3047 | |
1a966eab AC |
3048 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
3049 | Set environment variable value to give the program.\n\ | |
c906108c SS |
3050 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
3051 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 3052 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 3053 | &setlist); |
5ba2abeb | 3054 | set_cmd_completer (c, noop_completer); |
c5aa993b | 3055 | |
1bedd215 AC |
3056 | c = add_com ("path", class_files, path_command, _("\ |
3057 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
3058 | $cwd in the path means the current working directory.\n\ |
3059 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3060 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3061 | fully linked executable files and separately compiled object files as \ |
3062 | needed.")); | |
5ba2abeb | 3063 | set_cmd_completer (c, filename_completer); |
c906108c | 3064 | |
1a966eab AC |
3065 | c = add_cmd ("paths", no_class, path_info, _("\ |
3066 | Current search path for finding object files.\n\ | |
c906108c SS |
3067 | $cwd in the path means the current working directory.\n\ |
3068 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3069 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3070 | fully linked executable files and separately compiled object files as \ |
3071 | needed."), | |
c906108c | 3072 | &showlist); |
5ba2abeb | 3073 | set_cmd_completer (c, noop_completer); |
c906108c | 3074 | |
2277426b PA |
3075 | add_prefix_cmd ("kill", class_run, kill_command, |
3076 | _("Kill execution of program being debugged."), | |
3077 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 3078 | |
1bedd215 AC |
3079 | add_com ("attach", class_run, attach_command, _("\ |
3080 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
3081 | This command attaches to another target, of the same type as your last\n\ |
3082 | \"target\" command (\"info files\" will show your target stack).\n\ | |
3083 | The command may take as argument a process id or a device file.\n\ | |
3084 | For a process id, you must have permission to send the process a signal,\n\ | |
3085 | and it must have the same effective uid as the debugger.\n\ | |
3086 | When using \"attach\" with a process id, the debugger finds the\n\ | |
3087 | program running in the process, looking first in the current working\n\ | |
3088 | directory, or (if not found there) using the source file search path\n\ | |
3089 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 3090 | to specify the program, and to load its symbol table.")); |
c906108c | 3091 | |
f73adfeb | 3092 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 3093 | Detach a process or file previously attached.\n\ |
c906108c | 3094 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
3095 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
3096 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 3097 | |
1bedd215 AC |
3098 | add_com ("disconnect", class_run, disconnect_command, _("\ |
3099 | Disconnect from a target.\n\ | |
6ad8ae5c | 3100 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 3101 | all targets.")); |
6ad8ae5c | 3102 | |
de0bea00 | 3103 | c = add_com ("signal", class_run, signal_command, _("\ |
486c7739 MF |
3104 | Continue program with the specified signal.\n\ |
3105 | Usage: signal SIGNAL\n\ | |
2edda2ff | 3106 | The SIGNAL argument is processed the same as the handle command.\n\ |
486c7739 MF |
3107 | \n\ |
3108 | An argument of \"0\" means continue the program without sending it a signal.\n\ | |
3109 | This is useful in cases where the program stopped because of a signal,\n\ | |
81219e53 DE |
3110 | and you want to resume the program while discarding the signal.\n\ |
3111 | \n\ | |
3112 | In a multi-threaded program the signal is delivered to, or discarded from,\n\ | |
3113 | the current thread only.")); | |
3114 | set_cmd_completer (c, signal_completer); | |
3115 | ||
3116 | c = add_com ("queue-signal", class_run, queue_signal_command, _("\ | |
3117 | Queue a signal to be delivered to the current thread when it is resumed.\n\ | |
3118 | Usage: queue-signal SIGNAL\n\ | |
3119 | The SIGNAL argument is processed the same as the handle command.\n\ | |
3120 | It is an error if the handling state of SIGNAL is \"nopass\".\n\ | |
3121 | \n\ | |
3122 | An argument of \"0\" means remove any currently queued signal from\n\ | |
3123 | the current thread. This is useful in cases where the program stopped\n\ | |
3124 | because of a signal, and you want to resume it while discarding the signal.\n\ | |
3125 | \n\ | |
3126 | In a multi-threaded program the signal is queued with, or discarded from,\n\ | |
3127 | the current thread only.")); | |
de0bea00 | 3128 | set_cmd_completer (c, signal_completer); |
c906108c | 3129 | |
1bedd215 AC |
3130 | add_com ("stepi", class_run, stepi_command, _("\ |
3131 | Step one instruction exactly.\n\ | |
486c7739 MF |
3132 | Usage: stepi [N]\n\ |
3133 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3134 | reason).")); |
c906108c SS |
3135 | add_com_alias ("si", "stepi", class_alias, 0); |
3136 | ||
1bedd215 AC |
3137 | add_com ("nexti", class_run, nexti_command, _("\ |
3138 | Step one instruction, but proceed through subroutine calls.\n\ | |
486c7739 MF |
3139 | Usage: nexti [N]\n\ |
3140 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3141 | reason).")); |
c906108c SS |
3142 | add_com_alias ("ni", "nexti", class_alias, 0); |
3143 | ||
1bedd215 AC |
3144 | add_com ("finish", class_run, finish_command, _("\ |
3145 | Execute until selected stack frame returns.\n\ | |
486c7739 | 3146 | Usage: finish\n\ |
1bedd215 | 3147 | Upon return, the value returned is printed and put in the value history.")); |
0e479716 | 3148 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 3149 | |
1bedd215 AC |
3150 | add_com ("next", class_run, next_command, _("\ |
3151 | Step program, proceeding through subroutine calls.\n\ | |
486c7739 MF |
3152 | Usage: next [N]\n\ |
3153 | Unlike \"step\", if the current source line calls a subroutine,\n\ | |
3154 | this command does not enter the subroutine, but instead steps over\n\ | |
dbf6a605 | 3155 | the call, in effect treating it as a single source line.")); |
c906108c | 3156 | add_com_alias ("n", "next", class_run, 1); |
c906108c | 3157 | |
1bedd215 AC |
3158 | add_com ("step", class_run, step_command, _("\ |
3159 | Step program until it reaches a different source line.\n\ | |
486c7739 MF |
3160 | Usage: step [N]\n\ |
3161 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3162 | reason).")); |
c906108c SS |
3163 | add_com_alias ("s", "step", class_run, 1); |
3164 | ||
1bedd215 AC |
3165 | c = add_com ("until", class_run, until_command, _("\ |
3166 | Execute until the program reaches a source line greater than the current\n\ | |
3e43a32a MS |
3167 | or a specified location (same args as break command) within the current \ |
3168 | frame.")); | |
5ba2abeb | 3169 | set_cmd_completer (c, location_completer); |
c906108c | 3170 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 3171 | |
1bedd215 | 3172 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
3173 | Continue the program up to the given location (same form as args for break \ |
3174 | command).\n\ | |
1bedd215 | 3175 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
3176 | set_cmd_completer (c, location_completer); |
3177 | ||
1bedd215 AC |
3178 | c = add_com ("jump", class_run, jump_command, _("\ |
3179 | Continue program being debugged at specified line or address.\n\ | |
486c7739 | 3180 | Usage: jump <location>\n\ |
c906108c | 3181 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 3182 | for an address to start at.")); |
5ba2abeb | 3183 | set_cmd_completer (c, location_completer); |
c1d780c2 | 3184 | add_com_alias ("j", "jump", class_run, 1); |
c906108c | 3185 | |
df983543 | 3186 | add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 3187 | Continue program being debugged, after signal or breakpoint.\n\ |
486c7739 | 3188 | Usage: continue [N]\n\ |
c906108c SS |
3189 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
3190 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
3191 | the breakpoint won't break until the Nth time it is reached).\n\ |
3192 | \n\ | |
3193 | If non-stop mode is enabled, continue only the current thread,\n\ | |
3194 | otherwise all the threads in the program are continued. To \n\ | |
3195 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
3196 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
3197 | add_com_alias ("c", "cont", class_run, 1); |
3198 | add_com_alias ("fg", "cont", class_run, 1); | |
3199 | ||
1bedd215 AC |
3200 | c = add_com ("run", class_run, run_command, _("\ |
3201 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c | 3202 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
3e43a32a MS |
3203 | Input and output redirection with \">\", \"<\", or \">>\" are also \ |
3204 | allowed.\n\n\ | |
3205 | With no arguments, uses arguments last specified (with \"run\" \ | |
3206 | or \"set args\").\n\ | |
c906108c | 3207 | To cancel previous arguments and run with no arguments,\n\ |
1bedd215 | 3208 | use \"set args\" without arguments.")); |
5ba2abeb | 3209 | set_cmd_completer (c, filename_completer); |
c906108c | 3210 | add_com_alias ("r", "run", class_run, 1); |
c906108c | 3211 | |
1bedd215 | 3212 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
3213 | Run the debugged program until the beginning of the main procedure.\n\ |
3214 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 3215 | \"run\" command.")); |
a4d5f2e0 JB |
3216 | set_cmd_completer (c, filename_completer); |
3217 | ||
0a07590b | 3218 | add_com ("interrupt", class_run, interrupt_command, |
df983543 | 3219 | _("Interrupt the execution of the debugged program.\n\ |
8cae4b3f PA |
3220 | If non-stop mode is enabled, interrupt only the current thread,\n\ |
3221 | otherwise all the threads in the program are stopped. To \n\ | |
3222 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 3223 | |
71c24708 | 3224 | c = add_info ("registers", nofp_registers_info, _("\ |
1bedd215 AC |
3225 | List of integer registers and their contents, for selected stack frame.\n\ |
3226 | Register name as argument means describe only that register.")); | |
7194c49b | 3227 | add_info_alias ("r", "registers", 1); |
71c24708 | 3228 | set_cmd_completer (c, reg_or_group_completer); |
c906108c | 3229 | |
71c24708 | 3230 | c = add_info ("all-registers", all_registers_info, _("\ |
1bedd215 AC |
3231 | List of all registers and their contents, for selected stack frame.\n\ |
3232 | Register name as argument means describe only that register.")); | |
71c24708 | 3233 | set_cmd_completer (c, reg_or_group_completer); |
c906108c SS |
3234 | |
3235 | add_info ("program", program_info, | |
1bedd215 | 3236 | _("Execution status of the program.")); |
c906108c SS |
3237 | |
3238 | add_info ("float", float_info, | |
1bedd215 | 3239 | _("Print the status of the floating point unit\n")); |
c906108c | 3240 | |
e76f1f2e | 3241 | add_info ("vector", vector_info, |
1bedd215 | 3242 | _("Print the status of the vector unit\n")); |
145b16a9 UW |
3243 | |
3244 | add_prefix_cmd ("proc", class_info, info_proc_cmd, | |
3245 | _("\ | |
3246 | Show /proc process information about any running process.\n\ | |
3247 | Specify any process id, or use the program being debugged by default."), | |
3248 | &info_proc_cmdlist, "info proc ", | |
3249 | 1/*allow-unknown*/, &infolist); | |
3250 | ||
3251 | add_cmd ("mappings", class_info, info_proc_cmd_mappings, _("\ | |
3252 | List of mapped memory regions."), | |
3253 | &info_proc_cmdlist); | |
3254 | ||
3255 | add_cmd ("stat", class_info, info_proc_cmd_stat, _("\ | |
3256 | List process info from /proc/PID/stat."), | |
3257 | &info_proc_cmdlist); | |
3258 | ||
3259 | add_cmd ("status", class_info, info_proc_cmd_status, _("\ | |
3260 | List process info from /proc/PID/status."), | |
3261 | &info_proc_cmdlist); | |
3262 | ||
3263 | add_cmd ("cwd", class_info, info_proc_cmd_cwd, _("\ | |
3264 | List current working directory of the process."), | |
3265 | &info_proc_cmdlist); | |
3266 | ||
3267 | add_cmd ("cmdline", class_info, info_proc_cmd_cmdline, _("\ | |
3268 | List command line arguments of the process."), | |
3269 | &info_proc_cmdlist); | |
3270 | ||
3271 | add_cmd ("exe", class_info, info_proc_cmd_exe, _("\ | |
3272 | List absolute filename for executable of the process."), | |
3273 | &info_proc_cmdlist); | |
3274 | ||
3275 | add_cmd ("all", class_info, info_proc_cmd_all, _("\ | |
3276 | List all available /proc info."), | |
3277 | &info_proc_cmdlist); | |
c906108c | 3278 | } |