Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
28e7fd62 | 3 | Copyright (C) 1986-2013 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 SS |
22 | #include <signal.h> |
23 | #include "gdb_string.h" | |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "frame.h" | |
27 | #include "inferior.h" | |
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" | |
35 | #include "symfile.h" | |
36 | #include "objfiles.h" | |
c94fdfd0 | 37 | #include "completer.h" |
8b93c638 | 38 | #include "ui-out.h" |
6426a772 | 39 | #include "event-top.h" |
96baa820 | 40 | #include "parser-defs.h" |
36160dc4 | 41 | #include "regcache.h" |
f9418c0f | 42 | #include "reggroups.h" |
fe898f56 | 43 | #include "block.h" |
a77053c2 | 44 | #include "solib.h" |
f9418c0f | 45 | #include <ctype.h> |
92ad9cd9 | 46 | #include "gdb_assert.h" |
281b533b | 47 | #include "observer.h" |
424163ea | 48 | #include "target-descriptions.h" |
ad842144 | 49 | #include "user-regs.h" |
32c1e744 | 50 | #include "exceptions.h" |
700b53b1 | 51 | #include "cli/cli-decode.h" |
a0ef4274 | 52 | #include "gdbthread.h" |
79a45b7d | 53 | #include "valprint.h" |
edb3359d | 54 | #include "inline-frame.h" |
573cda03 | 55 | #include "tracepoint.h" |
09cee04b | 56 | #include "inf-loop.h" |
be34f849 | 57 | #include "continuations.h" |
f8eba3c6 | 58 | #include "linespec.h" |
529480d0 | 59 | #include "cli/cli-utils.h" |
d5551862 | 60 | |
a58dd373 EZ |
61 | /* Local functions: */ |
62 | ||
63 | static void nofp_registers_info (char *, int); | |
64 | ||
6a3a010b | 65 | static void print_return_value (struct value *function, |
c055b101 | 66 | struct type *value_type); |
11cf8741 | 67 | |
a14ed312 | 68 | static void until_next_command (int); |
c906108c | 69 | |
a14ed312 | 70 | static void until_command (char *, int); |
c906108c | 71 | |
a14ed312 | 72 | static void path_info (char *, int); |
c906108c | 73 | |
a14ed312 | 74 | static void path_command (char *, int); |
c906108c | 75 | |
a14ed312 | 76 | static void unset_command (char *, int); |
c906108c | 77 | |
a14ed312 | 78 | static void float_info (char *, int); |
c906108c | 79 | |
6ad8ae5c DJ |
80 | static void disconnect_command (char *, int); |
81 | ||
a14ed312 | 82 | static void unset_environment_command (char *, int); |
c906108c | 83 | |
a14ed312 | 84 | static void set_environment_command (char *, int); |
c906108c | 85 | |
a14ed312 | 86 | static void environment_info (char *, int); |
c906108c | 87 | |
a14ed312 | 88 | static void program_info (char *, int); |
c906108c | 89 | |
a14ed312 | 90 | static void finish_command (char *, int); |
c906108c | 91 | |
a14ed312 | 92 | static void signal_command (char *, int); |
c906108c | 93 | |
a14ed312 | 94 | static void jump_command (char *, int); |
c906108c | 95 | |
a14ed312 | 96 | static void step_1 (int, int, char *); |
3e43a32a MS |
97 | static void step_once (int skip_subroutines, int single_inst, |
98 | int count, int thread); | |
c906108c | 99 | |
a14ed312 | 100 | static void next_command (char *, int); |
c906108c | 101 | |
a14ed312 | 102 | static void step_command (char *, int); |
c906108c | 103 | |
a14ed312 | 104 | static void run_command (char *, int); |
c906108c | 105 | |
a14ed312 | 106 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 107 | |
a14ed312 | 108 | static void go_command (char *line_no, int from_tty); |
392a587b | 109 | |
a14ed312 | 110 | static int strip_bg_char (char **); |
43ff13b4 | 111 | |
a14ed312 | 112 | void _initialize_infcmd (void); |
c906108c | 113 | |
c906108c | 114 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 115 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 116 | |
3e43a32a MS |
117 | /* Scratch area where string containing arguments to give to the |
118 | program will be stored by 'set args'. As soon as anything is | |
119 | stored, notice_args_set will move it into per-inferior storage. | |
1777feb0 | 120 | Arguments are separated by spaces. Empty string (pointer to '\0') |
3e43a32a | 121 | means no args. */ |
c906108c | 122 | |
3f81c18a | 123 | static char *inferior_args_scratch; |
c906108c | 124 | |
3f81c18a VP |
125 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
126 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 127 | |
3f81c18a | 128 | static char *inferior_io_terminal_scratch; |
c906108c SS |
129 | |
130 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
131 | Since various parts of infrun.c test this to see whether there is a program | |
132 | being debugged it should be nonzero (currently 3 is used) for remote | |
133 | debugging. */ | |
134 | ||
39f77062 | 135 | ptid_t inferior_ptid; |
c906108c | 136 | |
c906108c SS |
137 | /* Address at which inferior stopped. */ |
138 | ||
139 | CORE_ADDR stop_pc; | |
140 | ||
c906108c SS |
141 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
142 | ||
aa7d318d | 143 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
144 | |
145 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
146 | process. */ | |
147 | ||
148 | int stopped_by_random_signal; | |
149 | ||
c906108c | 150 | \f |
1777feb0 | 151 | /* Accessor routines. */ |
07091751 | 152 | |
3f81c18a VP |
153 | /* Set the io terminal for the current inferior. Ownership of |
154 | TERMINAL_NAME is not transferred. */ | |
155 | ||
3cb3b8df BR |
156 | void |
157 | set_inferior_io_terminal (const char *terminal_name) | |
158 | { | |
3f81c18a VP |
159 | xfree (current_inferior ()->terminal); |
160 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
161 | } |
162 | ||
163 | const char * | |
164 | get_inferior_io_terminal (void) | |
165 | { | |
3f81c18a VP |
166 | return current_inferior ()->terminal; |
167 | } | |
168 | ||
169 | static void | |
170 | set_inferior_tty_command (char *args, int from_tty, | |
171 | struct cmd_list_element *c) | |
172 | { | |
173 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
174 | Now route it to current inferior. */ | |
175 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
176 | } | |
177 | ||
178 | static void | |
179 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
180 | struct cmd_list_element *c, const char *value) | |
181 | { | |
182 | /* Note that we ignore the passed-in value in favor of computing it | |
183 | directly. */ | |
275f2e57 | 184 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 185 | |
275f2e57 DJ |
186 | if (inferior_io_terminal == NULL) |
187 | inferior_io_terminal = ""; | |
3f81c18a | 188 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
189 | _("Terminal for future runs of program being debugged " |
190 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
191 | } |
192 | ||
07091751 FN |
193 | char * |
194 | get_inferior_args (void) | |
195 | { | |
3f81c18a | 196 | if (current_inferior ()->argc != 0) |
552c04a7 | 197 | { |
3f81c18a | 198 | char *n; |
552c04a7 | 199 | |
3f81c18a VP |
200 | n = construct_inferior_arguments (current_inferior ()->argc, |
201 | current_inferior ()->argv); | |
202 | set_inferior_args (n); | |
203 | xfree (n); | |
552c04a7 TT |
204 | } |
205 | ||
3f81c18a VP |
206 | if (current_inferior ()->args == NULL) |
207 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 208 | |
3f81c18a | 209 | return current_inferior ()->args; |
07091751 FN |
210 | } |
211 | ||
3f81c18a VP |
212 | /* Set the arguments for the current inferior. Ownership of |
213 | NEWARGS is not transferred. */ | |
214 | ||
215 | void | |
07091751 FN |
216 | set_inferior_args (char *newargs) |
217 | { | |
3f81c18a VP |
218 | xfree (current_inferior ()->args); |
219 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
220 | current_inferior ()->argc = 0; | |
221 | current_inferior ()->argv = 0; | |
07091751 | 222 | } |
c5aa993b | 223 | |
552c04a7 TT |
224 | void |
225 | set_inferior_args_vector (int argc, char **argv) | |
226 | { | |
3f81c18a VP |
227 | current_inferior ()->argc = argc; |
228 | current_inferior ()->argv = argv; | |
552c04a7 TT |
229 | } |
230 | ||
231 | /* Notice when `set args' is run. */ | |
232 | static void | |
3f81c18a | 233 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 234 | { |
3f81c18a VP |
235 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
236 | Now route it to current inferior. */ | |
237 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
238 | } |
239 | ||
240 | /* Notice when `show args' is run. */ | |
241 | static void | |
3f81c18a VP |
242 | show_args_command (struct ui_file *file, int from_tty, |
243 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 244 | { |
258c00cc TT |
245 | /* Note that we ignore the passed-in value in favor of computing it |
246 | directly. */ | |
247 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
248 | } |
249 | ||
c2a727fa TT |
250 | \f |
251 | /* Compute command-line string given argument vector. This does the | |
252 | same shell processing as fork_inferior. */ | |
c2a727fa | 253 | char * |
bd57a748 | 254 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
255 | { |
256 | char *result; | |
257 | ||
258 | if (STARTUP_WITH_SHELL) | |
259 | { | |
5d60742e EZ |
260 | #ifdef __MINGW32__ |
261 | /* This holds all the characters considered special to the | |
262 | Windows shells. */ | |
263 | char *special = "\"!&*|[]{}<>?`~^=;, \t\n"; | |
264 | const char quote = '"'; | |
265 | #else | |
c2a727fa TT |
266 | /* This holds all the characters considered special to the |
267 | typical Unix shells. We include `^' because the SunOS | |
268 | /bin/sh treats it as a synonym for `|'. */ | |
5d60742e EZ |
269 | char *special = "\"!#$&*()\\|[]{}<>?'`~^; \t\n"; |
270 | const char quote = '\''; | |
271 | #endif | |
c2a727fa TT |
272 | int i; |
273 | int length = 0; | |
274 | char *out, *cp; | |
275 | ||
276 | /* We over-compute the size. It shouldn't matter. */ | |
277 | for (i = 0; i < argc; ++i) | |
c2226152 | 278 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
279 | |
280 | result = (char *) xmalloc (length); | |
281 | out = result; | |
282 | ||
283 | for (i = 0; i < argc; ++i) | |
284 | { | |
285 | if (i > 0) | |
286 | *out++ = ' '; | |
287 | ||
03c6228e AS |
288 | /* Need to handle empty arguments specially. */ |
289 | if (argv[i][0] == '\0') | |
c2a727fa | 290 | { |
5d60742e EZ |
291 | *out++ = quote; |
292 | *out++ = quote; | |
03c6228e AS |
293 | } |
294 | else | |
295 | { | |
5d60742e EZ |
296 | #ifdef __MINGW32__ |
297 | int quoted = 0; | |
298 | ||
299 | if (strpbrk (argv[i], special)) | |
300 | { | |
301 | quoted = 1; | |
302 | *out++ = quote; | |
303 | } | |
304 | #endif | |
03c6228e AS |
305 | for (cp = argv[i]; *cp; ++cp) |
306 | { | |
c2226152 AS |
307 | if (*cp == '\n') |
308 | { | |
309 | /* A newline cannot be quoted with a backslash (it | |
310 | just disappears), only by putting it inside | |
311 | quotes. */ | |
5d60742e | 312 | *out++ = quote; |
c2226152 | 313 | *out++ = '\n'; |
5d60742e | 314 | *out++ = quote; |
c2226152 AS |
315 | } |
316 | else | |
317 | { | |
5d60742e EZ |
318 | #ifdef __MINGW32__ |
319 | if (*cp == quote) | |
320 | #else | |
c2226152 | 321 | if (strchr (special, *cp) != NULL) |
5d60742e | 322 | #endif |
c2226152 AS |
323 | *out++ = '\\'; |
324 | *out++ = *cp; | |
325 | } | |
03c6228e | 326 | } |
5d60742e EZ |
327 | #ifdef __MINGW32__ |
328 | if (quoted) | |
329 | *out++ = quote; | |
330 | #endif | |
c2a727fa TT |
331 | } |
332 | } | |
333 | *out = '\0'; | |
334 | } | |
335 | else | |
336 | { | |
337 | /* In this case we can't handle arguments that contain spaces, | |
338 | tabs, or newlines -- see breakup_args(). */ | |
339 | int i; | |
340 | int length = 0; | |
341 | ||
342 | for (i = 0; i < argc; ++i) | |
343 | { | |
344 | char *cp = strchr (argv[i], ' '); | |
345 | if (cp == NULL) | |
346 | cp = strchr (argv[i], '\t'); | |
347 | if (cp == NULL) | |
348 | cp = strchr (argv[i], '\n'); | |
349 | if (cp != NULL) | |
3e43a32a MS |
350 | error (_("can't handle command-line " |
351 | "argument containing whitespace")); | |
c2a727fa TT |
352 | length += strlen (argv[i]) + 1; |
353 | } | |
354 | ||
355 | result = (char *) xmalloc (length); | |
356 | result[0] = '\0'; | |
357 | for (i = 0; i < argc; ++i) | |
358 | { | |
359 | if (i > 0) | |
360 | strcat (result, " "); | |
361 | strcat (result, argv[i]); | |
362 | } | |
363 | } | |
364 | ||
365 | return result; | |
366 | } | |
552c04a7 TT |
367 | \f |
368 | ||
43ff13b4 JM |
369 | /* This function detects whether or not a '&' character (indicating |
370 | background execution) has been added as *the last* of the arguments ARGS | |
1777feb0 MS |
371 | of a command. If it has, it removes it and returns 1. Otherwise it |
372 | does nothing and returns 0. */ | |
c5aa993b | 373 | static int |
fba45db2 | 374 | strip_bg_char (char **args) |
43ff13b4 JM |
375 | { |
376 | char *p = NULL; | |
c5aa993b | 377 | |
9846de1b | 378 | p = strchr (*args, '&'); |
c5aa993b | 379 | |
9846de1b | 380 | if (p) |
43ff13b4 JM |
381 | { |
382 | if (p == (*args + strlen (*args) - 1)) | |
383 | { | |
c5aa993b | 384 | if (strlen (*args) > 1) |
43ff13b4 JM |
385 | { |
386 | do | |
387 | p--; | |
388 | while (*p == ' ' || *p == '\t'); | |
389 | *(p + 1) = '\0'; | |
390 | } | |
391 | else | |
392 | *args = 0; | |
393 | return 1; | |
394 | } | |
395 | } | |
396 | return 0; | |
397 | } | |
398 | ||
281b533b DJ |
399 | /* Common actions to take after creating any sort of inferior, by any |
400 | means (running, attaching, connecting, et cetera). The target | |
401 | should be stopped. */ | |
402 | ||
403 | void | |
404 | post_create_inferior (struct target_ops *target, int from_tty) | |
405 | { | |
ce406537 PA |
406 | volatile struct gdb_exception ex; |
407 | ||
b79599ff DP |
408 | /* Be sure we own the terminal in case write operations are performed. */ |
409 | target_terminal_ours (); | |
410 | ||
424163ea DJ |
411 | /* If the target hasn't taken care of this already, do it now. |
412 | Targets which need to access registers during to_open, | |
413 | to_create_inferior, or to_attach should do it earlier; but many | |
414 | don't need to. */ | |
415 | target_find_description (); | |
416 | ||
ce406537 PA |
417 | /* Now that we know the register layout, retrieve current PC. But |
418 | if the PC is unavailable (e.g., we're opening a core file with | |
419 | missing registers info), ignore it. */ | |
420 | stop_pc = 0; | |
421 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
422 | { | |
423 | stop_pc = regcache_read_pc (get_current_regcache ()); | |
424 | } | |
425 | if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR) | |
426 | throw_exception (ex); | |
f698437e | 427 | |
50c71eaf PA |
428 | if (exec_bfd) |
429 | { | |
2eff07b3 PP |
430 | const unsigned solib_add_generation |
431 | = current_program_space->solib_add_generation; | |
432 | ||
9353355f DJ |
433 | /* Create the hooks to handle shared library load and unload |
434 | events. */ | |
268a4a75 | 435 | solib_create_inferior_hook (from_tty); |
268a4a75 | 436 | |
2eff07b3 PP |
437 | if (current_program_space->solib_add_generation == solib_add_generation) |
438 | { | |
439 | /* The platform-specific hook should load initial shared libraries, | |
440 | but didn't. FROM_TTY will be incorrectly 0 but such solib | |
441 | targets should be fixed anyway. Call it only after the solib | |
442 | target has been initialized by solib_create_inferior_hook. */ | |
443 | ||
444 | if (info_verbose) | |
445 | warning (_("platform-specific solib_create_inferior_hook did " | |
446 | "not load initial shared libraries.")); | |
447 | ||
448 | /* If the solist is global across processes, there's no need to | |
449 | refetch it here. */ | |
f5656ead | 450 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
4d1eb6b4 | 451 | solib_add (NULL, 0, target, auto_solib_add); |
2eff07b3 | 452 | } |
9353355f DJ |
453 | } |
454 | ||
ea5d7a99 PM |
455 | /* If the user sets watchpoints before execution having started, |
456 | then she gets software watchpoints, because GDB can't know which | |
457 | target will end up being pushed, or if it supports hardware | |
458 | watchpoints or not. breakpoint_re_set takes care of promoting | |
459 | watchpoints to hardware watchpoints if possible, however, if this | |
460 | new inferior doesn't load shared libraries or we don't pull in | |
461 | symbols from any other source on this target/arch, | |
462 | breakpoint_re_set is never called. Call it now so that software | |
463 | watchpoints get a chance to be promoted to hardware watchpoints | |
464 | if the now pushed target supports hardware watchpoints. */ | |
465 | breakpoint_re_set (); | |
466 | ||
281b533b DJ |
467 | observer_notify_inferior_created (target, from_tty); |
468 | } | |
469 | ||
a4d5f2e0 JB |
470 | /* Kill the inferior if already running. This function is designed |
471 | to be called when we are about to start the execution of the program | |
472 | from the beginning. Ask the user to confirm that he wants to restart | |
473 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 474 | |
8edfe269 | 475 | static void |
a4d5f2e0 JB |
476 | kill_if_already_running (int from_tty) |
477 | { | |
39f77062 | 478 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 479 | { |
8edfe269 DJ |
480 | /* Bail out before killing the program if we will not be able to |
481 | restart it. */ | |
482 | target_require_runnable (); | |
483 | ||
adf40b2e | 484 | if (from_tty |
9e2f0ad4 HZ |
485 | && !query (_("The program being debugged has been started already.\n\ |
486 | Start it from the beginning? "))) | |
8a3fe4f8 | 487 | error (_("Program not restarted.")); |
c906108c | 488 | target_kill (); |
c906108c | 489 | } |
a4d5f2e0 JB |
490 | } |
491 | ||
1777feb0 | 492 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
f67a969f JB |
493 | a temporary breakpoint at the begining of the main program before |
494 | running the program. */ | |
495 | ||
a4d5f2e0 | 496 | static void |
f67a969f | 497 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
498 | { |
499 | char *exec_file; | |
29f49a6a PA |
500 | struct cleanup *old_chain; |
501 | ptid_t ptid; | |
79a45e25 | 502 | struct ui_out *uiout = current_uiout; |
c906108c | 503 | |
a4d5f2e0 JB |
504 | dont_repeat (); |
505 | ||
506 | kill_if_already_running (from_tty); | |
3c35e65b UW |
507 | |
508 | init_wait_for_inferior (); | |
c906108c SS |
509 | clear_breakpoint_hit_counts (); |
510 | ||
fd79ecee DJ |
511 | /* Clean up any leftovers from other runs. Some other things from |
512 | this function should probably be moved into target_pre_inferior. */ | |
513 | target_pre_inferior (from_tty); | |
514 | ||
39ad761d JB |
515 | /* The comment here used to read, "The exec file is re-read every |
516 | time we do a generic_mourn_inferior, so we just have to worry | |
517 | about the symbol file." The `generic_mourn_inferior' function | |
518 | gets called whenever the program exits. However, suppose the | |
519 | program exits, and *then* the executable file changes? We need | |
520 | to check again here. Since reopen_exec_file doesn't do anything | |
521 | if the timestamp hasn't changed, I don't see the harm. */ | |
522 | reopen_exec_file (); | |
c906108c SS |
523 | reread_symbols (); |
524 | ||
f67a969f JB |
525 | /* Insert the temporary breakpoint if a location was specified. */ |
526 | if (tbreak_at_main) | |
527 | tbreak_command (main_name (), 0); | |
528 | ||
39ad761d JB |
529 | exec_file = (char *) get_exec_file (0); |
530 | ||
9908b566 VP |
531 | if (non_stop && !target_supports_non_stop ()) |
532 | error (_("The target does not support running in non-stop mode.")); | |
533 | ||
c906108c SS |
534 | /* We keep symbols from add-symbol-file, on the grounds that the |
535 | user might want to add some symbols before running the program | |
536 | (right?). But sometimes (dynamic loading where the user manually | |
537 | introduces the new symbols with add-symbol-file), the code which | |
538 | the symbols describe does not persist between runs. Currently | |
539 | the user has to manually nuke all symbols between runs if they | |
540 | want them to go away (PR 2207). This is probably reasonable. */ | |
541 | ||
43ff13b4 | 542 | if (!args) |
6426a772 | 543 | { |
362646f5 | 544 | if (target_can_async_p ()) |
6426a772 JM |
545 | async_disable_stdin (); |
546 | } | |
43ff13b4 | 547 | else |
c906108c | 548 | { |
43ff13b4 JM |
549 | int async_exec = strip_bg_char (&args); |
550 | ||
551 | /* If we get a request for running in the bg but the target | |
1777feb0 | 552 | doesn't support it, error out. */ |
362646f5 | 553 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 554 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
555 | |
556 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 557 | to simulate synchronous (fg) execution. */ |
362646f5 | 558 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 559 | { |
1777feb0 | 560 | /* Simulate synchronous execution. */ |
6426a772 | 561 | async_disable_stdin (); |
43ff13b4 JM |
562 | } |
563 | ||
1777feb0 | 564 | /* If there were other args, beside '&', process them. */ |
43ff13b4 | 565 | if (args) |
3f81c18a | 566 | set_inferior_args (args); |
c906108c SS |
567 | } |
568 | ||
569 | if (from_tty) | |
570 | { | |
8b93c638 JM |
571 | ui_out_field_string (uiout, NULL, "Starting program"); |
572 | ui_out_text (uiout, ": "); | |
573 | if (exec_file) | |
574 | ui_out_field_string (uiout, "execfile", exec_file); | |
575 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
576 | /* We call get_inferior_args() because we might need to compute |
577 | the value now. */ | |
578 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
579 | ui_out_text (uiout, "\n"); |
580 | ui_out_flush (uiout); | |
c906108c SS |
581 | } |
582 | ||
552c04a7 TT |
583 | /* We call get_inferior_args() because we might need to compute |
584 | the value now. */ | |
585 | target_create_inferior (exec_file, get_inferior_args (), | |
3e43a32a MS |
586 | environ_vector (current_inferior ()->environment), |
587 | from_tty); | |
281b533b | 588 | |
29f49a6a PA |
589 | /* We're starting off a new process. When we get out of here, in |
590 | non-stop mode, finish the state of all threads of that process, | |
591 | but leave other threads alone, as they may be stopped in internal | |
592 | events --- the frontend shouldn't see them as stopped. In | |
593 | all-stop, always finish the state of all threads, as we may be | |
594 | resuming more than just the new process. */ | |
595 | if (non_stop) | |
596 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
597 | else | |
598 | ptid = minus_one_ptid; | |
599 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
600 | ||
de1b3c3d PA |
601 | /* Pass zero for FROM_TTY, because at this point the "run" command |
602 | has done its thing; now we are setting up the running program. */ | |
603 | post_create_inferior (¤t_target, 0); | |
281b533b | 604 | |
74d1f91e JK |
605 | /* Start the target running. Do not use -1 continuation as it would skip |
606 | breakpoint right at the entry point. */ | |
a493e3e2 | 607 | proceed (regcache_read_pc (get_current_regcache ()), GDB_SIGNAL_0, 0); |
c906108c | 608 | |
29f49a6a PA |
609 | /* Since there was no error, there's no need to finish the thread |
610 | states here. */ | |
611 | discard_cleanups (old_chain); | |
612 | } | |
c906108c | 613 | |
f67a969f JB |
614 | static void |
615 | run_command (char *args, int from_tty) | |
616 | { | |
617 | run_command_1 (args, from_tty, 0); | |
618 | } | |
619 | ||
c906108c | 620 | static void |
fba45db2 | 621 | run_no_args_command (char *args, int from_tty) |
c906108c | 622 | { |
3f81c18a | 623 | set_inferior_args (""); |
c906108c | 624 | } |
c906108c | 625 | \f |
c5aa993b | 626 | |
a4d5f2e0 JB |
627 | /* Start the execution of the program up until the beginning of the main |
628 | program. */ | |
629 | ||
630 | static void | |
631 | start_command (char *args, int from_tty) | |
632 | { | |
633 | /* Some languages such as Ada need to search inside the program | |
634 | minimal symbols for the location where to put the temporary | |
635 | breakpoint before starting. */ | |
636 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 637 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 638 | |
f67a969f JB |
639 | /* Run the program until reaching the main procedure... */ |
640 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
641 | } |
642 | ||
8cae4b3f PA |
643 | static int |
644 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
645 | { | |
74531fed PA |
646 | /* We go through all threads individually instead of compressing |
647 | into a single target `resume_all' request, because some threads | |
648 | may be stopped in internal breakpoints/events, or stopped waiting | |
649 | for its turn in the displaced stepping queue (that is, they are | |
650 | running && !executing). The target side has no idea about why | |
651 | the thread is stopped, so a `resume_all' command would resume too | |
652 | much. If/when GDB gains a way to tell the target `hold this | |
653 | thread stopped until I say otherwise', then we can optimize | |
654 | this. */ | |
4f8d22e3 | 655 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
656 | return 0; |
657 | ||
dcf4fbde | 658 | switch_to_thread (thread->ptid); |
8cae4b3f | 659 | clear_proceed_status (); |
a493e3e2 | 660 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
8cae4b3f PA |
661 | return 0; |
662 | } | |
663 | ||
70221824 | 664 | static void |
d729566a PA |
665 | ensure_valid_thread (void) |
666 | { | |
667 | if (ptid_equal (inferior_ptid, null_ptid) | |
668 | || is_exited (inferior_ptid)) | |
3e43a32a | 669 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
670 | } |
671 | ||
573cda03 | 672 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 673 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
674 | disallow those commands. */ |
675 | ||
70221824 | 676 | static void |
573cda03 SS |
677 | ensure_not_tfind_mode (void) |
678 | { | |
679 | if (get_traceframe_number () >= 0) | |
3e43a32a | 680 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
681 | } |
682 | ||
3d3fef6b YQ |
683 | /* Throw an error indicating the current thread is running. */ |
684 | ||
685 | static void | |
686 | error_is_running (void) | |
687 | { | |
688 | error (_("Cannot execute this command while " | |
689 | "the selected thread is running.")); | |
690 | } | |
691 | ||
692 | /* Calls error_is_running if the current thread is running. */ | |
693 | ||
694 | static void | |
695 | ensure_not_running (void) | |
696 | { | |
697 | if (is_running (inferior_ptid)) | |
698 | error_is_running (); | |
699 | } | |
700 | ||
77ebaa5a VP |
701 | void |
702 | continue_1 (int all_threads) | |
703 | { | |
3d488bfc | 704 | ERROR_NO_INFERIOR; |
573cda03 | 705 | ensure_not_tfind_mode (); |
3d488bfc | 706 | |
77ebaa5a VP |
707 | if (non_stop && all_threads) |
708 | { | |
709 | /* Don't error out if the current thread is running, because | |
abbb1732 | 710 | there may be other stopped threads. */ |
77ebaa5a VP |
711 | struct cleanup *old_chain; |
712 | ||
713 | /* Backup current thread and selected frame. */ | |
714 | old_chain = make_cleanup_restore_current_thread (); | |
715 | ||
716 | iterate_over_threads (proceed_thread_callback, NULL); | |
717 | ||
718 | /* Restore selected ptid. */ | |
719 | do_cleanups (old_chain); | |
720 | } | |
721 | else | |
722 | { | |
d729566a | 723 | ensure_valid_thread (); |
77ebaa5a VP |
724 | ensure_not_running (); |
725 | clear_proceed_status (); | |
a493e3e2 | 726 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
77ebaa5a VP |
727 | } |
728 | } | |
729 | ||
8cae4b3f | 730 | /* continue [-a] [proceed-count] [&] */ |
1dd5fedc | 731 | static void |
8cae4b3f | 732 | continue_command (char *args, int from_tty) |
c906108c | 733 | { |
c5aa993b | 734 | int async_exec = 0; |
8cae4b3f | 735 | int all_threads = 0; |
c906108c SS |
736 | ERROR_NO_INFERIOR; |
737 | ||
1777feb0 | 738 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
739 | if (args != NULL) |
740 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
741 | |
742 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 743 | error out. */ |
362646f5 | 744 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 745 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
746 | |
747 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 748 | foreground, synchronously. */ |
362646f5 | 749 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 750 | { |
1777feb0 | 751 | /* Simulate synchronous execution. */ |
6426a772 | 752 | async_disable_stdin (); |
43ff13b4 | 753 | } |
c906108c | 754 | |
8cae4b3f PA |
755 | if (args != NULL) |
756 | { | |
757 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
758 | { | |
759 | all_threads = 1; | |
760 | args += sizeof ("-a") - 1; | |
761 | if (*args == '\0') | |
762 | args = NULL; | |
763 | } | |
764 | } | |
765 | ||
766 | if (!non_stop && all_threads) | |
767 | error (_("`-a' is meaningless in all-stop mode.")); | |
768 | ||
769 | if (args != NULL && all_threads) | |
3e43a32a MS |
770 | error (_("Can't resume all threads and specify " |
771 | "proceed count simultaneously.")); | |
8cae4b3f PA |
772 | |
773 | /* If we have an argument left, set proceed count of breakpoint we | |
774 | stopped at. */ | |
775 | if (args != NULL) | |
c906108c | 776 | { |
347bddb7 | 777 | bpstat bs = NULL; |
8671a17b PA |
778 | int num, stat; |
779 | int stopped = 0; | |
347bddb7 PA |
780 | struct thread_info *tp; |
781 | ||
782 | if (non_stop) | |
e09875d4 | 783 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
784 | else |
785 | { | |
786 | ptid_t last_ptid; | |
787 | struct target_waitstatus ws; | |
788 | ||
789 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 790 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
791 | } |
792 | if (tp != NULL) | |
16c381f0 | 793 | bs = tp->control.stop_bpstat; |
8671a17b PA |
794 | |
795 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
796 | if (stat > 0) | |
797 | { | |
798 | set_ignore_count (num, | |
8cae4b3f | 799 | parse_and_eval_long (args) - 1, |
8671a17b PA |
800 | from_tty); |
801 | /* set_ignore_count prints a message ending with a period. | |
802 | So print two spaces before "Continuing.". */ | |
803 | if (from_tty) | |
804 | printf_filtered (" "); | |
805 | stopped = 1; | |
806 | } | |
807 | ||
808 | if (!stopped && from_tty) | |
c906108c SS |
809 | { |
810 | printf_filtered | |
811 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
812 | } | |
c906108c SS |
813 | } |
814 | ||
815 | if (from_tty) | |
a3f17187 | 816 | printf_filtered (_("Continuing.\n")); |
c906108c | 817 | |
77ebaa5a | 818 | continue_1 (all_threads); |
c906108c SS |
819 | } |
820 | \f | |
edb3359d DJ |
821 | /* Record the starting point of a "step" or "next" command. */ |
822 | ||
823 | static void | |
824 | set_step_frame (void) | |
825 | { | |
826 | struct symtab_and_line sal; | |
827 | ||
828 | find_frame_sal (get_current_frame (), &sal); | |
829 | set_step_info (get_current_frame (), sal); | |
830 | } | |
831 | ||
c906108c SS |
832 | /* Step until outside of current statement. */ |
833 | ||
c906108c | 834 | static void |
fba45db2 | 835 | step_command (char *count_string, int from_tty) |
c906108c SS |
836 | { |
837 | step_1 (0, 0, count_string); | |
838 | } | |
839 | ||
840 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
841 | ||
c906108c | 842 | static void |
fba45db2 | 843 | next_command (char *count_string, int from_tty) |
c906108c SS |
844 | { |
845 | step_1 (1, 0, count_string); | |
846 | } | |
847 | ||
848 | /* Likewise, but step only one instruction. */ | |
849 | ||
1dd5fedc | 850 | static void |
fba45db2 | 851 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
852 | { |
853 | step_1 (0, 1, count_string); | |
854 | } | |
855 | ||
1dd5fedc | 856 | static void |
fba45db2 | 857 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
858 | { |
859 | step_1 (1, 1, count_string); | |
860 | } | |
861 | ||
186c406b | 862 | void |
611c83ae | 863 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 864 | { |
611c83ae PA |
865 | int thread = * (int *) arg; |
866 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
867 | } |
868 | ||
c906108c | 869 | static void |
fba45db2 | 870 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 871 | { |
52f0bd74 | 872 | int count = 1; |
f107f563 | 873 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 874 | int async_exec = 0; |
b3dc826b | 875 | int thread = -1; |
c5aa993b | 876 | |
c906108c | 877 | ERROR_NO_INFERIOR; |
573cda03 | 878 | ensure_not_tfind_mode (); |
d729566a | 879 | ensure_valid_thread (); |
94cc34af | 880 | ensure_not_running (); |
43ff13b4 JM |
881 | |
882 | if (count_string) | |
883 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 884 | |
43ff13b4 | 885 | /* If we get a request for running in the bg but the target |
1777feb0 | 886 | doesn't support it, error out. */ |
362646f5 | 887 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 888 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
889 | |
890 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 891 | to simulate synchronous (fg) execution. */ |
362646f5 | 892 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 893 | { |
1777feb0 | 894 | /* Simulate synchronous execution. */ |
6426a772 | 895 | async_disable_stdin (); |
43ff13b4 JM |
896 | } |
897 | ||
bb518678 | 898 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 899 | |
1777feb0 | 900 | if (!single_inst || skip_subroutines) /* Leave si command alone. */ |
c906108c | 901 | { |
186c406b TT |
902 | struct thread_info *tp = inferior_thread (); |
903 | ||
611c83ae | 904 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 905 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 906 | |
186c406b | 907 | set_longjmp_breakpoint (tp, get_frame_id (get_current_frame ())); |
611c83ae | 908 | |
b3dc826b | 909 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
910 | } |
911 | ||
37d94800 | 912 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 913 | if (!target_can_async_p ()) |
c2d11a7d JM |
914 | { |
915 | for (; count > 0; count--) | |
916 | { | |
37d94800 | 917 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 918 | |
751b8ce1 PA |
919 | if (!target_has_execution) |
920 | break; | |
c2d11a7d JM |
921 | else |
922 | { | |
751b8ce1 PA |
923 | struct thread_info *tp = inferior_thread (); |
924 | ||
925 | if (!tp->control.stop_step || !tp->step_multi) | |
926 | { | |
927 | /* If we stopped for some reason that is not stepping | |
928 | there are no further steps to make. */ | |
929 | tp->step_multi = 0; | |
930 | break; | |
931 | } | |
c2d11a7d | 932 | } |
c2d11a7d JM |
933 | } |
934 | ||
f107f563 | 935 | do_cleanups (cleanups); |
c2d11a7d | 936 | } |
c2d11a7d JM |
937 | else |
938 | { | |
37d94800 PA |
939 | /* In the case of an asynchronous target things get complicated; |
940 | do only one step for now, before returning control to the | |
941 | event loop. Let the continuation figure out how many other | |
942 | steps we need to do, and handle them one at the time, through | |
943 | step_once. */ | |
b3dc826b | 944 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 945 | |
611c83ae | 946 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
947 | disable the longjmp breakpoint as appropriate. */ |
948 | discard_cleanups (cleanups); | |
c906108c | 949 | } |
c2d11a7d | 950 | } |
c906108c | 951 | |
bfec99b2 PA |
952 | struct step_1_continuation_args |
953 | { | |
954 | int count; | |
955 | int skip_subroutines; | |
956 | int single_inst; | |
957 | int thread; | |
958 | }; | |
959 | ||
c2d11a7d JM |
960 | /* Called after we are done with one step operation, to check whether |
961 | we need to step again, before we print the prompt and return control | |
1777feb0 MS |
962 | to the user. If count is > 1, we will need to do one more call to |
963 | proceed(), via step_once(). Basically it is like step_once and | |
964 | step_1_continuation are co-recursive. */ | |
c2d11a7d | 965 | static void |
fa4cd53f | 966 | step_1_continuation (void *args, int err) |
c2d11a7d | 967 | { |
bfec99b2 | 968 | struct step_1_continuation_args *a = args; |
f13468d9 | 969 | |
af679fd0 | 970 | if (target_has_execution) |
f13468d9 | 971 | { |
af679fd0 PA |
972 | struct thread_info *tp; |
973 | ||
974 | tp = inferior_thread (); | |
fa4cd53f PA |
975 | if (!err |
976 | && tp->step_multi && tp->control.stop_step) | |
af679fd0 PA |
977 | { |
978 | /* There are more steps to make, and we did stop due to | |
979 | ending a stepping range. Do another step. */ | |
37d94800 PA |
980 | step_once (a->skip_subroutines, a->single_inst, |
981 | a->count - 1, a->thread); | |
af679fd0 PA |
982 | return; |
983 | } | |
984 | tp->step_multi = 0; | |
f107f563 | 985 | } |
af679fd0 | 986 | |
fa4cd53f PA |
987 | /* We either hit an error, or stopped for some reason that is |
988 | not stepping, or there are no further steps to make. | |
989 | Cleanup. */ | |
af679fd0 PA |
990 | if (!a->single_inst || a->skip_subroutines) |
991 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
992 | } |
993 | ||
37d94800 PA |
994 | /* Do just one step operation. This is useful to implement the 'step |
995 | n' kind of commands. In case of asynchronous targets, we will have | |
996 | to set up a continuation to be done after the target stops (after | |
997 | this one step). For synch targets, the caller handles further | |
998 | stepping. */ | |
999 | ||
1000 | static void | |
611c83ae | 1001 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 1002 | { |
edb3359d | 1003 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
1004 | |
1005 | if (count > 0) | |
c906108c | 1006 | { |
4e1c45ea PA |
1007 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
1008 | the longjmp breakpoint was not required. Use the | |
1009 | INFERIOR_PTID thread instead, which is the same thread when | |
1010 | THREAD is set. */ | |
1011 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 1012 | |
c906108c | 1013 | clear_proceed_status (); |
edb3359d | 1014 | set_step_frame (); |
c906108c | 1015 | |
c5aa993b | 1016 | if (!single_inst) |
c906108c | 1017 | { |
1641cfcc PA |
1018 | CORE_ADDR pc; |
1019 | ||
edb3359d | 1020 | /* Step at an inlined function behaves like "down". */ |
3f01d0d0 | 1021 | if (!skip_subroutines |
edb3359d DJ |
1022 | && inline_skipped_frames (inferior_ptid)) |
1023 | { | |
09cee04b PA |
1024 | ptid_t resume_ptid; |
1025 | ||
1026 | /* Pretend that we've ran. */ | |
1027 | resume_ptid = user_visible_resume_ptid (1); | |
1028 | set_running (resume_ptid, 1); | |
1029 | ||
edb3359d DJ |
1030 | step_into_inline_frame (inferior_ptid); |
1031 | if (count > 1) | |
1032 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
1033 | else | |
09cee04b PA |
1034 | { |
1035 | /* Pretend that we've stopped. */ | |
1036 | normal_stop (); | |
1037 | ||
1038 | if (target_can_async_p ()) | |
1039 | inferior_event_handler (INF_EXEC_COMPLETE, NULL); | |
1040 | } | |
edb3359d DJ |
1041 | return; |
1042 | } | |
1043 | ||
1641cfcc PA |
1044 | pc = get_frame_pc (frame); |
1045 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
1046 | &tp->control.step_range_start, |
1047 | &tp->control.step_range_end); | |
5fbbeb29 | 1048 | |
c1e36e3e PA |
1049 | tp->control.may_range_step = 1; |
1050 | ||
5fbbeb29 | 1051 | /* If we have no line info, switch to stepi mode. */ |
16c381f0 | 1052 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
c1e36e3e PA |
1053 | { |
1054 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1055 | tp->control.may_range_step = 0; | |
1056 | } | |
16c381f0 | 1057 | else if (tp->control.step_range_end == 0) |
c906108c | 1058 | { |
2c02bd72 | 1059 | const char *name; |
abbb1732 | 1060 | |
1641cfcc | 1061 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1062 | &tp->control.step_range_start, |
1063 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1064 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1065 | |
1066 | target_terminal_ours (); | |
3e43a32a MS |
1067 | printf_filtered (_("Single stepping until exit from function %s," |
1068 | "\nwhich has no line number information.\n"), | |
1069 | name); | |
c906108c SS |
1070 | } |
1071 | } | |
1072 | else | |
1073 | { | |
1074 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1075 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1076 | if (!skip_subroutines) |
1077 | /* It is stepi. | |
1078 | Don't step over function calls, not even to functions lacking | |
1079 | line numbers. */ | |
16c381f0 | 1080 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1081 | } |
1082 | ||
1083 | if (skip_subroutines) | |
16c381f0 | 1084 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1085 | |
95e54da7 | 1086 | tp->step_multi = (count > 1); |
a493e3e2 | 1087 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1088 | |
37d94800 PA |
1089 | /* For async targets, register a continuation to do any |
1090 | additional steps. For sync targets, the caller will handle | |
1091 | further stepping. */ | |
1092 | if (target_can_async_p ()) | |
1093 | { | |
1094 | struct step_1_continuation_args *args; | |
1095 | ||
1096 | args = xmalloc (sizeof (*args)); | |
1097 | args->skip_subroutines = skip_subroutines; | |
1098 | args->single_inst = single_inst; | |
1099 | args->count = count; | |
1100 | args->thread = thread; | |
1101 | ||
1102 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1103 | } | |
c906108c | 1104 | } |
c906108c | 1105 | } |
c2d11a7d | 1106 | |
c906108c SS |
1107 | \f |
1108 | /* Continue program at specified address. */ | |
1109 | ||
1110 | static void | |
fba45db2 | 1111 | jump_command (char *arg, int from_tty) |
c906108c | 1112 | { |
5af949e3 | 1113 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1114 | CORE_ADDR addr; |
c906108c SS |
1115 | struct symtabs_and_lines sals; |
1116 | struct symtab_and_line sal; | |
1117 | struct symbol *fn; | |
1118 | struct symbol *sfn; | |
43ff13b4 | 1119 | int async_exec = 0; |
c5aa993b | 1120 | |
c906108c | 1121 | ERROR_NO_INFERIOR; |
573cda03 | 1122 | ensure_not_tfind_mode (); |
d729566a | 1123 | ensure_valid_thread (); |
94cc34af | 1124 | ensure_not_running (); |
c906108c | 1125 | |
1777feb0 | 1126 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1127 | if (arg != NULL) |
1128 | async_exec = strip_bg_char (&arg); | |
1129 | ||
1130 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1131 | error out. */ |
362646f5 | 1132 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1133 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1134 | |
c906108c | 1135 | if (!arg) |
e2e0b3e5 | 1136 | error_no_arg (_("starting address")); |
c906108c | 1137 | |
39cf75f7 | 1138 | sals = decode_line_with_last_displayed (arg, DECODE_LINE_FUNFIRSTLINE); |
c906108c SS |
1139 | if (sals.nelts != 1) |
1140 | { | |
8a3fe4f8 | 1141 | error (_("Unreasonable jump request")); |
c906108c SS |
1142 | } |
1143 | ||
1144 | sal = sals.sals[0]; | |
b8c9b27d | 1145 | xfree (sals.sals); |
c906108c SS |
1146 | |
1147 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1148 | error (_("No source file has been specified.")); |
c906108c | 1149 | |
1777feb0 | 1150 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1151 | |
1777feb0 | 1152 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1153 | fn = get_frame_function (get_current_frame ()); |
1154 | sfn = find_pc_function (sal.pc); | |
1155 | if (fn != NULL && sfn != fn) | |
1156 | { | |
9e2f0ad4 | 1157 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1158 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1159 | { |
8a3fe4f8 | 1160 | error (_("Not confirmed.")); |
c906108c SS |
1161 | /* NOTREACHED */ |
1162 | } | |
1163 | } | |
1164 | ||
c5aa993b | 1165 | if (sfn != NULL) |
c906108c SS |
1166 | { |
1167 | fixup_symbol_section (sfn, 0); | |
e27d198c TT |
1168 | if (section_is_overlay (SYMBOL_OBJ_SECTION (SYMBOL_OBJFILE (sfn), sfn)) && |
1169 | !section_is_mapped (SYMBOL_OBJ_SECTION (SYMBOL_OBJFILE (sfn), sfn))) | |
c906108c | 1170 | { |
3e43a32a MS |
1171 | if (!query (_("WARNING!!! Destination is in " |
1172 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1173 | { |
8a3fe4f8 | 1174 | error (_("Not confirmed.")); |
c906108c SS |
1175 | /* NOTREACHED */ |
1176 | } | |
1177 | } | |
1178 | } | |
1179 | ||
c906108c SS |
1180 | addr = sal.pc; |
1181 | ||
1182 | if (from_tty) | |
1183 | { | |
a3f17187 | 1184 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1185 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1186 | printf_filtered (".\n"); |
1187 | } | |
1188 | ||
89113898 | 1189 | /* If we are not asked to run in the bg, then prepare to run in the |
1777feb0 | 1190 | foreground, synchronously. */ |
89113898 PA |
1191 | if (!async_exec && target_can_async_p ()) |
1192 | { | |
1777feb0 | 1193 | /* Simulate synchronous execution. */ |
89113898 PA |
1194 | async_disable_stdin (); |
1195 | } | |
1196 | ||
c906108c | 1197 | clear_proceed_status (); |
a493e3e2 | 1198 | proceed (addr, GDB_SIGNAL_0, 0); |
c906108c | 1199 | } |
c906108c | 1200 | \f |
c5aa993b | 1201 | |
1777feb0 | 1202 | /* Go to line or address in current procedure. */ |
c906108c | 1203 | static void |
fba45db2 | 1204 | go_command (char *line_no, int from_tty) |
c906108c | 1205 | { |
c5aa993b | 1206 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1207 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1208 | else |
1209 | { | |
b83266a0 SS |
1210 | tbreak_command (line_no, from_tty); |
1211 | jump_command (line_no, from_tty); | |
c906108c SS |
1212 | } |
1213 | } | |
c906108c | 1214 | \f |
c5aa993b | 1215 | |
c906108c SS |
1216 | /* Continue program giving it specified signal. */ |
1217 | ||
1218 | static void | |
fba45db2 | 1219 | signal_command (char *signum_exp, int from_tty) |
c906108c | 1220 | { |
2ea28649 | 1221 | enum gdb_signal oursig; |
32c1e744 | 1222 | int async_exec = 0; |
c906108c SS |
1223 | |
1224 | dont_repeat (); /* Too dangerous. */ | |
1225 | ERROR_NO_INFERIOR; | |
573cda03 | 1226 | ensure_not_tfind_mode (); |
d729566a | 1227 | ensure_valid_thread (); |
94cc34af | 1228 | ensure_not_running (); |
c906108c | 1229 | |
32c1e744 VP |
1230 | /* Find out whether we must run in the background. */ |
1231 | if (signum_exp != NULL) | |
1232 | async_exec = strip_bg_char (&signum_exp); | |
1233 | ||
1234 | /* If we must run in the background, but the target can't do it, | |
1235 | error out. */ | |
1236 | if (async_exec && !target_can_async_p ()) | |
1237 | error (_("Asynchronous execution not supported on this target.")); | |
1238 | ||
1239 | /* If we are not asked to run in the bg, then prepare to run in the | |
1240 | foreground, synchronously. */ | |
1241 | if (!async_exec && target_can_async_p ()) | |
1242 | { | |
1243 | /* Simulate synchronous execution. */ | |
1244 | async_disable_stdin (); | |
1245 | } | |
1246 | ||
c906108c | 1247 | if (!signum_exp) |
e2e0b3e5 | 1248 | error_no_arg (_("signal number")); |
c906108c SS |
1249 | |
1250 | /* It would be even slicker to make signal names be valid expressions, | |
1251 | (the type could be "enum $signal" or some such), then the user could | |
1252 | assign them to convenience variables. */ | |
2ea28649 | 1253 | oursig = gdb_signal_from_name (signum_exp); |
c906108c | 1254 | |
a493e3e2 | 1255 | if (oursig == GDB_SIGNAL_UNKNOWN) |
c906108c SS |
1256 | { |
1257 | /* No, try numeric. */ | |
bb518678 | 1258 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1259 | |
1260 | if (num == 0) | |
a493e3e2 | 1261 | oursig = GDB_SIGNAL_0; |
c906108c | 1262 | else |
2ea28649 | 1263 | oursig = gdb_signal_from_command (num); |
c906108c SS |
1264 | } |
1265 | ||
1266 | if (from_tty) | |
1267 | { | |
a493e3e2 | 1268 | if (oursig == GDB_SIGNAL_0) |
a3f17187 | 1269 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1270 | else |
a3f17187 | 1271 | printf_filtered (_("Continuing with signal %s.\n"), |
2ea28649 | 1272 | gdb_signal_to_name (oursig)); |
c906108c SS |
1273 | } |
1274 | ||
1275 | clear_proceed_status (); | |
a12cc160 | 1276 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1277 | } |
1278 | ||
fa4cd53f PA |
1279 | /* Continuation args to be passed to the "until" command |
1280 | continuation. */ | |
1281 | struct until_next_continuation_args | |
1282 | { | |
1283 | /* The thread that was current when the command was executed. */ | |
1284 | int thread; | |
1285 | }; | |
1286 | ||
186c406b TT |
1287 | /* A continuation callback for until_next_command. */ |
1288 | ||
1289 | static void | |
fa4cd53f | 1290 | until_next_continuation (void *arg, int err) |
186c406b | 1291 | { |
fa4cd53f | 1292 | struct until_next_continuation_args *a = arg; |
186c406b | 1293 | |
fa4cd53f | 1294 | delete_longjmp_breakpoint (a->thread); |
186c406b TT |
1295 | } |
1296 | ||
c906108c SS |
1297 | /* Proceed until we reach a different source line with pc greater than |
1298 | our current one or exit the function. We skip calls in both cases. | |
1299 | ||
1300 | Note that eventually this command should probably be changed so | |
1301 | that only source lines are printed out when we hit the breakpoint | |
1302 | we set. This may involve changes to wait_for_inferior and the | |
1303 | proceed status code. */ | |
1304 | ||
c906108c | 1305 | static void |
fba45db2 | 1306 | until_next_command (int from_tty) |
c906108c SS |
1307 | { |
1308 | struct frame_info *frame; | |
1309 | CORE_ADDR pc; | |
1310 | struct symbol *func; | |
1311 | struct symtab_and_line sal; | |
4e1c45ea | 1312 | struct thread_info *tp = inferior_thread (); |
186c406b TT |
1313 | int thread = tp->num; |
1314 | struct cleanup *old_chain; | |
c5aa993b | 1315 | |
c906108c | 1316 | clear_proceed_status (); |
edb3359d | 1317 | set_step_frame (); |
c906108c SS |
1318 | |
1319 | frame = get_current_frame (); | |
1320 | ||
1321 | /* Step until either exited from this function or greater | |
1322 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1323 | not). */ |
c906108c | 1324 | |
1c7819ef | 1325 | pc = get_frame_pc (frame); |
c906108c | 1326 | func = find_pc_function (pc); |
c5aa993b | 1327 | |
c906108c SS |
1328 | if (!func) |
1329 | { | |
7cbd4a93 | 1330 | struct bound_minimal_symbol msymbol = lookup_minimal_symbol_by_pc (pc); |
c5aa993b | 1331 | |
7cbd4a93 | 1332 | if (msymbol.minsym == NULL) |
8a3fe4f8 | 1333 | error (_("Execution is not within a known function.")); |
c5aa993b | 1334 | |
7cbd4a93 | 1335 | tp->control.step_range_start = SYMBOL_VALUE_ADDRESS (msymbol.minsym); |
16c381f0 | 1336 | tp->control.step_range_end = pc; |
c906108c SS |
1337 | } |
1338 | else | |
1339 | { | |
1340 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1341 | |
16c381f0 JK |
1342 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1343 | tp->control.step_range_end = sal.end; | |
c906108c | 1344 | } |
c1e36e3e | 1345 | tp->control.may_range_step = 1; |
c5aa993b | 1346 | |
16c381f0 | 1347 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1348 | |
af679fd0 | 1349 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1350 | |
186c406b TT |
1351 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1352 | old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1353 | ||
a493e3e2 | 1354 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
186c406b TT |
1355 | |
1356 | if (target_can_async_p () && is_running (inferior_ptid)) | |
1357 | { | |
fa4cd53f PA |
1358 | struct until_next_continuation_args *cont_args; |
1359 | ||
186c406b | 1360 | discard_cleanups (old_chain); |
fa4cd53f PA |
1361 | cont_args = XNEW (struct until_next_continuation_args); |
1362 | cont_args->thread = inferior_thread ()->num; | |
1363 | ||
1364 | add_continuation (tp, until_next_continuation, cont_args, xfree); | |
186c406b TT |
1365 | } |
1366 | else | |
1367 | do_cleanups (old_chain); | |
c906108c SS |
1368 | } |
1369 | ||
c5aa993b | 1370 | static void |
fba45db2 | 1371 | until_command (char *arg, int from_tty) |
c906108c | 1372 | { |
43ff13b4 JM |
1373 | int async_exec = 0; |
1374 | ||
4247603b | 1375 | ERROR_NO_INFERIOR; |
573cda03 | 1376 | ensure_not_tfind_mode (); |
4247603b PA |
1377 | ensure_valid_thread (); |
1378 | ensure_not_running (); | |
573cda03 | 1379 | |
1777feb0 | 1380 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1381 | if (arg != NULL) |
1382 | async_exec = strip_bg_char (&arg); | |
1383 | ||
1384 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1385 | error out. */ |
362646f5 | 1386 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1387 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1388 | |
1389 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 1390 | foreground, synchronously. */ |
362646f5 | 1391 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1392 | { |
1777feb0 | 1393 | /* Simulate synchronous execution. */ |
6426a772 | 1394 | async_disable_stdin (); |
43ff13b4 JM |
1395 | } |
1396 | ||
c906108c | 1397 | if (arg) |
ae66c1fc | 1398 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1399 | else |
1400 | until_next_command (from_tty); | |
1401 | } | |
ae66c1fc EZ |
1402 | |
1403 | static void | |
1404 | advance_command (char *arg, int from_tty) | |
1405 | { | |
1406 | int async_exec = 0; | |
1407 | ||
4247603b | 1408 | ERROR_NO_INFERIOR; |
573cda03 | 1409 | ensure_not_tfind_mode (); |
4247603b PA |
1410 | ensure_valid_thread (); |
1411 | ensure_not_running (); | |
573cda03 | 1412 | |
ae66c1fc | 1413 | if (arg == NULL) |
e2e0b3e5 | 1414 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1415 | |
1416 | /* Find out whether we must run in the background. */ | |
1417 | if (arg != NULL) | |
1418 | async_exec = strip_bg_char (&arg); | |
1419 | ||
1420 | /* If we must run in the background, but the target can't do it, | |
1421 | error out. */ | |
362646f5 | 1422 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1423 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1424 | |
1425 | /* If we are not asked to run in the bg, then prepare to run in the | |
1426 | foreground, synchronously. */ | |
362646f5 | 1427 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1428 | { |
1429 | /* Simulate synchronous execution. */ | |
1430 | async_disable_stdin (); | |
1431 | } | |
1432 | ||
1433 | until_break_command (arg, from_tty, 1); | |
1434 | } | |
c906108c | 1435 | \f |
cc72b2a2 KP |
1436 | /* Return the value of the result of a function at the end of a 'finish' |
1437 | command/BP. */ | |
f941662f | 1438 | |
cc72b2a2 | 1439 | struct value * |
6a3a010b | 1440 | get_return_value (struct value *function, struct type *value_type) |
11cf8741 | 1441 | { |
cc72b2a2 KP |
1442 | struct regcache *stop_regs = stop_registers; |
1443 | struct gdbarch *gdbarch; | |
44e5158b | 1444 | struct value *value; |
cc72b2a2 KP |
1445 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
1446 | ||
1447 | /* If stop_registers were not saved, use the current registers. */ | |
1448 | if (!stop_regs) | |
1449 | { | |
1450 | stop_regs = regcache_dup (get_current_regcache ()); | |
faab9922 | 1451 | make_cleanup_regcache_xfree (stop_regs); |
cc72b2a2 KP |
1452 | } |
1453 | ||
1454 | gdbarch = get_regcache_arch (stop_regs); | |
44e5158b | 1455 | |
181fc57c | 1456 | CHECK_TYPEDEF (value_type); |
44e5158b | 1457 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1458 | |
92ad9cd9 AC |
1459 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1460 | call, it's possible (with no help from the architecture vector) | |
1461 | to locate and return/print a "struct return" value. This is just | |
7a9dd1b2 | 1462 | a more complicated case of what is already being done in the |
92ad9cd9 AC |
1463 | inferior function call code. In fact, when inferior function |
1464 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1465 | |
6a3a010b | 1466 | switch (gdbarch_return_value (gdbarch, function, value_type, |
c055b101 | 1467 | NULL, NULL, NULL)) |
44e5158b | 1468 | { |
750eb019 AC |
1469 | case RETURN_VALUE_REGISTER_CONVENTION: |
1470 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1471 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1472 | value = allocate_value (value_type); |
6a3a010b | 1473 | gdbarch_return_value (gdbarch, function, value_type, stop_regs, |
990a07ab | 1474 | value_contents_raw (value), NULL); |
750eb019 AC |
1475 | break; |
1476 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1477 | value = NULL; | |
1478 | break; | |
1479 | default: | |
e2e0b3e5 | 1480 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1481 | } |
bb472c1e | 1482 | |
cc72b2a2 KP |
1483 | do_cleanups (cleanup); |
1484 | ||
1485 | return value; | |
1486 | } | |
1487 | ||
1488 | /* Print the result of a function at the end of a 'finish' command. */ | |
1489 | ||
1490 | static void | |
6a3a010b | 1491 | print_return_value (struct value *function, struct type *value_type) |
cc72b2a2 | 1492 | { |
6a3a010b | 1493 | struct value *value = get_return_value (function, value_type); |
cc72b2a2 KP |
1494 | struct ui_out *uiout = current_uiout; |
1495 | ||
31db7b6c MK |
1496 | if (value) |
1497 | { | |
79a45b7d | 1498 | struct value_print_options opts; |
f99d8bf4 PA |
1499 | struct ui_file *stb; |
1500 | struct cleanup *old_chain; | |
79a45b7d | 1501 | |
31db7b6c | 1502 | /* Print it. */ |
f99d8bf4 PA |
1503 | stb = mem_fileopen (); |
1504 | old_chain = make_cleanup_ui_file_delete (stb); | |
31db7b6c MK |
1505 | ui_out_text (uiout, "Value returned is "); |
1506 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1507 | record_latest_value (value)); | |
1508 | ui_out_text (uiout, " = "); | |
2a998fc0 | 1509 | get_no_prettyformat_print_options (&opts); |
f99d8bf4 | 1510 | value_print (value, stb, &opts); |
31db7b6c MK |
1511 | ui_out_field_stream (uiout, "return-value", stb); |
1512 | ui_out_text (uiout, "\n"); | |
1d751abe | 1513 | do_cleanups (old_chain); |
31db7b6c MK |
1514 | } |
1515 | else | |
1516 | { | |
1517 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1518 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1519 | ui_out_text (uiout, "."); | |
1520 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1521 | } |
11cf8741 JM |
1522 | } |
1523 | ||
43ff13b4 | 1524 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1525 | has stopped. In asynchronous mode, we wait for the target to stop |
1526 | in the call to poll or select in the event loop, so it is | |
1527 | impossible to do all the stuff as part of the finish_command | |
1528 | function itself. The only chance we have to complete this command | |
1529 | is in fetch_inferior_event, which is called by the event loop as | |
fa4cd53f | 1530 | soon as it detects that the target has stopped. */ |
f941662f | 1531 | |
bfec99b2 | 1532 | struct finish_command_continuation_args |
43ff13b4 | 1533 | { |
fa4cd53f PA |
1534 | /* The thread that as current when the command was executed. */ |
1535 | int thread; | |
43ff13b4 | 1536 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1537 | struct symbol *function; |
1538 | }; | |
c5aa993b | 1539 | |
bfec99b2 | 1540 | static void |
fa4cd53f | 1541 | finish_command_continuation (void *arg, int err) |
bfec99b2 PA |
1542 | { |
1543 | struct finish_command_continuation_args *a = arg; | |
347bddb7 | 1544 | |
fa4cd53f | 1545 | if (!err) |
43ff13b4 | 1546 | { |
fa4cd53f PA |
1547 | struct thread_info *tp = NULL; |
1548 | bpstat bs = NULL; | |
bfec99b2 | 1549 | |
fa4cd53f PA |
1550 | if (!ptid_equal (inferior_ptid, null_ptid) |
1551 | && target_has_execution | |
1552 | && is_stopped (inferior_ptid)) | |
1553 | { | |
1554 | tp = inferior_thread (); | |
1555 | bs = tp->control.stop_bpstat; | |
1556 | } | |
f5871ec0 | 1557 | |
fa4cd53f PA |
1558 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL |
1559 | && a->function != NULL) | |
40c549d6 | 1560 | { |
fa4cd53f PA |
1561 | struct type *value_type; |
1562 | ||
1563 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); | |
1564 | if (!value_type) | |
1565 | internal_error (__FILE__, __LINE__, | |
1566 | _("finish_command: function has no target type")); | |
40c549d6 | 1567 | |
fa4cd53f | 1568 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 | 1569 | { |
fa4cd53f | 1570 | volatile struct gdb_exception ex; |
6a3a010b | 1571 | struct value *func; |
fa4cd53f | 1572 | |
6a3a010b | 1573 | func = read_var_value (a->function, get_current_frame ()); |
fa4cd53f PA |
1574 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1575 | { | |
1576 | /* print_return_value can throw an exception in some | |
1577 | circumstances. We need to catch this so that we still | |
1578 | delete the breakpoint. */ | |
6a3a010b | 1579 | print_return_value (func, value_type); |
fa4cd53f PA |
1580 | } |
1581 | if (ex.reason < 0) | |
1582 | exception_print (gdb_stdout, ex); | |
40c549d6 | 1583 | } |
40c549d6 | 1584 | } |
fa4cd53f PA |
1585 | |
1586 | /* We suppress normal call of normal_stop observer and do it | |
1587 | here so that the *stopped notification includes the return | |
1588 | value. */ | |
1589 | if (bs != NULL && tp->control.proceed_to_finish) | |
1590 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
43ff13b4 | 1591 | } |
f941662f | 1592 | |
bfec99b2 | 1593 | delete_breakpoint (a->breakpoint); |
fa4cd53f | 1594 | delete_longjmp_breakpoint (a->thread); |
43ff13b4 JM |
1595 | } |
1596 | ||
604ead4a PA |
1597 | static void |
1598 | finish_command_continuation_free_arg (void *arg) | |
1599 | { | |
604ead4a PA |
1600 | xfree (arg); |
1601 | } | |
1602 | ||
b2175913 MS |
1603 | /* finish_backward -- helper function for finish_command. */ |
1604 | ||
1605 | static void | |
1606 | finish_backward (struct symbol *function) | |
1607 | { | |
1608 | struct symtab_and_line sal; | |
1609 | struct thread_info *tp = inferior_thread (); | |
1c7819ef | 1610 | CORE_ADDR pc; |
b2175913 | 1611 | CORE_ADDR func_addr; |
b2175913 | 1612 | |
1c7819ef PA |
1613 | pc = get_frame_pc (get_current_frame ()); |
1614 | ||
1615 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1616 | internal_error (__FILE__, __LINE__, |
1617 | _("Finish: couldn't find function.")); | |
1618 | ||
1619 | sal = find_pc_line (func_addr, 0); | |
1620 | ||
9da8c2a0 | 1621 | tp->control.proceed_to_finish = 1; |
b2175913 MS |
1622 | /* Special case: if we're sitting at the function entry point, |
1623 | then all we need to do is take a reverse singlestep. We | |
1624 | don't need to set a breakpoint, and indeed it would do us | |
1625 | no good to do so. | |
1626 | ||
1627 | Note that this can only happen at frame #0, since there's | |
1628 | no way that a function up the stack can have a return address | |
1629 | that's equal to its entry point. */ | |
1630 | ||
1c7819ef | 1631 | if (sal.pc != pc) |
b2175913 | 1632 | { |
a6d9a66e UW |
1633 | struct frame_info *frame = get_selected_frame (NULL); |
1634 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
9da8c2a0 PA |
1635 | struct symtab_and_line sr_sal; |
1636 | ||
1637 | /* Set a step-resume at the function's entry point. Once that's | |
1638 | hit, we'll do one more step backwards. */ | |
1639 | init_sal (&sr_sal); | |
1640 | sr_sal.pc = sal.pc; | |
1641 | sr_sal.pspace = get_frame_program_space (frame); | |
1642 | insert_step_resume_breakpoint_at_sal (gdbarch, | |
1643 | sr_sal, null_frame_id); | |
a6d9a66e | 1644 | |
a493e3e2 | 1645 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1646 | } |
1647 | else | |
b2175913 | 1648 | { |
9da8c2a0 PA |
1649 | /* We're almost there -- we just need to back up by one more |
1650 | single-step. */ | |
16c381f0 | 1651 | tp->control.step_range_start = tp->control.step_range_end = 1; |
a493e3e2 | 1652 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
b2175913 | 1653 | } |
b2175913 MS |
1654 | } |
1655 | ||
1656 | /* finish_forward -- helper function for finish_command. */ | |
1657 | ||
1658 | static void | |
1659 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1660 | { | |
def166f6 | 1661 | struct frame_id frame_id = get_frame_id (frame); |
a6d9a66e | 1662 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1663 | struct symtab_and_line sal; |
1664 | struct thread_info *tp = inferior_thread (); | |
1665 | struct breakpoint *breakpoint; | |
1666 | struct cleanup *old_chain; | |
1667 | struct finish_command_continuation_args *cargs; | |
186c406b | 1668 | int thread = tp->num; |
b2175913 MS |
1669 | |
1670 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1671 | sal.pc = get_frame_pc (frame); | |
1672 | ||
a6d9a66e UW |
1673 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1674 | get_stack_frame_id (frame), | |
b2175913 MS |
1675 | bp_finish); |
1676 | ||
c70a6932 JK |
1677 | /* set_momentary_breakpoint invalidates FRAME. */ |
1678 | frame = NULL; | |
1679 | ||
b2175913 MS |
1680 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
1681 | ||
def166f6 | 1682 | set_longjmp_breakpoint (tp, frame_id); |
186c406b TT |
1683 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
1684 | ||
16c381f0 JK |
1685 | /* We want stop_registers, please... */ |
1686 | tp->control.proceed_to_finish = 1; | |
b2175913 MS |
1687 | cargs = xmalloc (sizeof (*cargs)); |
1688 | ||
fa4cd53f | 1689 | cargs->thread = thread; |
b2175913 MS |
1690 | cargs->breakpoint = breakpoint; |
1691 | cargs->function = function; | |
1692 | add_continuation (tp, finish_command_continuation, cargs, | |
1693 | finish_command_continuation_free_arg); | |
a493e3e2 | 1694 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1695 | |
1696 | discard_cleanups (old_chain); | |
1697 | if (!target_can_async_p ()) | |
fa4cd53f | 1698 | do_all_continuations (0); |
b2175913 MS |
1699 | } |
1700 | ||
f941662f MK |
1701 | /* "finish": Set a temporary breakpoint at the place the selected |
1702 | frame will return to, then continue. */ | |
c906108c SS |
1703 | |
1704 | static void | |
fba45db2 | 1705 | finish_command (char *arg, int from_tty) |
c906108c | 1706 | { |
52f0bd74 AC |
1707 | struct frame_info *frame; |
1708 | struct symbol *function; | |
43ff13b4 JM |
1709 | |
1710 | int async_exec = 0; | |
1711 | ||
4247603b | 1712 | ERROR_NO_INFERIOR; |
573cda03 | 1713 | ensure_not_tfind_mode (); |
4247603b PA |
1714 | ensure_valid_thread (); |
1715 | ensure_not_running (); | |
573cda03 | 1716 | |
f941662f | 1717 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1718 | if (arg != NULL) |
1719 | async_exec = strip_bg_char (&arg); | |
1720 | ||
1721 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1722 | error out. */ |
362646f5 | 1723 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1724 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1725 | |
1726 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1727 | foreground, synchronously. */ |
362646f5 | 1728 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1729 | { |
f941662f | 1730 | /* Simulate synchronous execution. */ |
6426a772 | 1731 | async_disable_stdin (); |
43ff13b4 | 1732 | } |
c906108c SS |
1733 | |
1734 | if (arg) | |
8a3fe4f8 | 1735 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1736 | |
206415a3 | 1737 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1738 | if (frame == 0) |
8a3fe4f8 | 1739 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1740 | |
1741 | clear_proceed_status (); | |
1742 | ||
edb3359d DJ |
1743 | /* Finishing from an inline frame is completely different. We don't |
1744 | try to show the "return value" - no way to locate it. So we do | |
1745 | not need a completion. */ | |
1746 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1747 | == INLINE_FRAME) | |
1748 | { | |
1749 | /* Claim we are stepping in the calling frame. An empty step | |
1750 | range means that we will stop once we aren't in a function | |
1751 | called by that frame. We don't use the magic "1" value for | |
1752 | step_range_end, because then infrun will think this is nexti, | |
1753 | and not step over the rest of this inlined function call. */ | |
1754 | struct thread_info *tp = inferior_thread (); | |
1755 | struct symtab_and_line empty_sal; | |
abbb1732 | 1756 | |
edb3359d DJ |
1757 | init_sal (&empty_sal); |
1758 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1759 | tp->control.step_range_start = get_frame_pc (frame); |
1760 | tp->control.step_range_end = tp->control.step_range_start; | |
1761 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1762 | |
1763 | /* Print info on the selected frame, including level number but not | |
1764 | source. */ | |
1765 | if (from_tty) | |
1766 | { | |
1767 | printf_filtered (_("Run till exit from ")); | |
08d72866 | 1768 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); |
edb3359d DJ |
1769 | } |
1770 | ||
a493e3e2 | 1771 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
edb3359d DJ |
1772 | return; |
1773 | } | |
1774 | ||
1ab3b62c JK |
1775 | /* Ignore TAILCALL_FRAME type frames, they were executed already before |
1776 | entering THISFRAME. */ | |
1777 | while (get_frame_type (frame) == TAILCALL_FRAME) | |
1778 | frame = get_prev_frame (frame); | |
1779 | ||
c906108c SS |
1780 | /* Find the function we will return from. */ |
1781 | ||
206415a3 | 1782 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1783 | |
f941662f MK |
1784 | /* Print info on the selected frame, including level number but not |
1785 | source. */ | |
c906108c SS |
1786 | if (from_tty) |
1787 | { | |
b2175913 MS |
1788 | if (execution_direction == EXEC_REVERSE) |
1789 | printf_filtered (_("Run back to call of ")); | |
1790 | else | |
1791 | printf_filtered (_("Run till exit from ")); | |
1792 | ||
08d72866 | 1793 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION, 0); |
c906108c SS |
1794 | } |
1795 | ||
b2175913 MS |
1796 | if (execution_direction == EXEC_REVERSE) |
1797 | finish_backward (function); | |
1798 | else | |
1799 | finish_forward (function, frame); | |
c906108c SS |
1800 | } |
1801 | \f | |
f941662f | 1802 | |
c906108c | 1803 | static void |
fba45db2 | 1804 | program_info (char *args, int from_tty) |
c906108c | 1805 | { |
347bddb7 PA |
1806 | bpstat bs; |
1807 | int num, stat; | |
1808 | struct thread_info *tp; | |
1809 | ptid_t ptid; | |
c5aa993b | 1810 | |
c906108c SS |
1811 | if (!target_has_execution) |
1812 | { | |
a3f17187 | 1813 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1814 | return; |
1815 | } | |
1816 | ||
347bddb7 PA |
1817 | if (non_stop) |
1818 | ptid = inferior_ptid; | |
1819 | else | |
1820 | { | |
1821 | struct target_waitstatus ws; | |
abbb1732 | 1822 | |
347bddb7 PA |
1823 | get_last_target_status (&ptid, &ws); |
1824 | } | |
1825 | ||
1826 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1827 | error (_("Invalid selected thread.")); | |
1828 | else if (is_running (ptid)) | |
1829 | error (_("Selected thread is running.")); | |
1830 | ||
e09875d4 | 1831 | tp = find_thread_ptid (ptid); |
16c381f0 | 1832 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1833 | stat = bpstat_num (&bs, &num); |
1834 | ||
c906108c | 1835 | target_files_info (); |
5af949e3 | 1836 | printf_filtered (_("Program stopped at %s.\n"), |
f5656ead | 1837 | paddress (target_gdbarch (), stop_pc)); |
16c381f0 | 1838 | if (tp->control.stop_step) |
a3f17187 | 1839 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1840 | else if (stat != 0) |
c906108c SS |
1841 | { |
1842 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1843 | isn't as strange as it seems. */ |
8671a17b | 1844 | while (stat != 0) |
c906108c | 1845 | { |
8671a17b | 1846 | if (stat < 0) |
c906108c | 1847 | { |
3e43a32a MS |
1848 | printf_filtered (_("It stopped at a breakpoint " |
1849 | "that has since been deleted.\n")); | |
c906108c SS |
1850 | } |
1851 | else | |
a3f17187 | 1852 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1853 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1854 | } |
1855 | } | |
a493e3e2 | 1856 | else if (tp->suspend.stop_signal != GDB_SIGNAL_0) |
c906108c | 1857 | { |
a3f17187 | 1858 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2ea28649 PA |
1859 | gdb_signal_to_name (tp->suspend.stop_signal), |
1860 | gdb_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1861 | } |
1862 | ||
1863 | if (!from_tty) | |
1864 | { | |
3e43a32a MS |
1865 | printf_filtered (_("Type \"info stack\" or \"info " |
1866 | "registers\" for more information.\n")); | |
c906108c SS |
1867 | } |
1868 | } | |
1869 | \f | |
1870 | static void | |
fba45db2 | 1871 | environment_info (char *var, int from_tty) |
c906108c SS |
1872 | { |
1873 | if (var) | |
1874 | { | |
3f81c18a | 1875 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1876 | |
c906108c SS |
1877 | if (val) |
1878 | { | |
1879 | puts_filtered (var); | |
1880 | puts_filtered (" = "); | |
1881 | puts_filtered (val); | |
1882 | puts_filtered ("\n"); | |
1883 | } | |
1884 | else | |
1885 | { | |
1886 | puts_filtered ("Environment variable \""); | |
1887 | puts_filtered (var); | |
1888 | puts_filtered ("\" not defined.\n"); | |
1889 | } | |
1890 | } | |
1891 | else | |
1892 | { | |
3f81c18a | 1893 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1894 | |
c906108c SS |
1895 | while (*vector) |
1896 | { | |
1897 | puts_filtered (*vector++); | |
1898 | puts_filtered ("\n"); | |
1899 | } | |
1900 | } | |
1901 | } | |
1902 | ||
1903 | static void | |
fba45db2 | 1904 | set_environment_command (char *arg, int from_tty) |
c906108c | 1905 | { |
52f0bd74 | 1906 | char *p, *val, *var; |
c906108c SS |
1907 | int nullset = 0; |
1908 | ||
1909 | if (arg == 0) | |
e2e0b3e5 | 1910 | error_no_arg (_("environment variable and value")); |
c906108c | 1911 | |
1777feb0 | 1912 | /* Find seperation between variable name and value. */ |
c906108c SS |
1913 | p = (char *) strchr (arg, '='); |
1914 | val = (char *) strchr (arg, ' '); | |
1915 | ||
1916 | if (p != 0 && val != 0) | |
1917 | { | |
1918 | /* We have both a space and an equals. If the space is before the | |
c5aa993b | 1919 | equals, walk forward over the spaces til we see a nonspace |
1777feb0 | 1920 | (possibly the equals). */ |
c906108c SS |
1921 | if (p > val) |
1922 | while (*val == ' ') | |
1923 | val++; | |
1924 | ||
1925 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1926 | take the char following the spaces. */ |
c906108c SS |
1927 | if (p > val) |
1928 | p = val - 1; | |
1929 | } | |
1930 | else if (val != 0 && p == 0) | |
1931 | p = val; | |
1932 | ||
1933 | if (p == arg) | |
e2e0b3e5 | 1934 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1935 | |
1936 | if (p == 0 || p[1] == 0) | |
1937 | { | |
1938 | nullset = 1; | |
1939 | if (p == 0) | |
1777feb0 | 1940 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
1941 | } |
1942 | else | |
1943 | { | |
1777feb0 | 1944 | /* Not setting variable value to null. */ |
c906108c SS |
1945 | val = p + 1; |
1946 | while (*val == ' ' || *val == '\t') | |
1947 | val++; | |
1948 | } | |
1949 | ||
c5aa993b JM |
1950 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1951 | p--; | |
c906108c SS |
1952 | |
1953 | var = savestring (arg, p - arg); | |
1954 | if (nullset) | |
1955 | { | |
3e43a32a MS |
1956 | printf_filtered (_("Setting environment variable " |
1957 | "\"%s\" to null value.\n"), | |
a3f17187 | 1958 | var); |
3f81c18a | 1959 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
1960 | } |
1961 | else | |
3f81c18a | 1962 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 1963 | xfree (var); |
c906108c SS |
1964 | } |
1965 | ||
1966 | static void | |
fba45db2 | 1967 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1968 | { |
1969 | if (var == 0) | |
1970 | { | |
1971 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1972 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1973 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 1974 | { |
3f81c18a VP |
1975 | free_environ (current_inferior ()->environment); |
1976 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
1977 | } |
1978 | } | |
1979 | else | |
3f81c18a | 1980 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
1981 | } |
1982 | ||
1777feb0 | 1983 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
1984 | |
1985 | static const char path_var_name[] = "PATH"; | |
1986 | ||
c906108c | 1987 | static void |
fba45db2 | 1988 | path_info (char *args, int from_tty) |
c906108c SS |
1989 | { |
1990 | puts_filtered ("Executable and object file path: "); | |
3e43a32a MS |
1991 | puts_filtered (get_in_environ (current_inferior ()->environment, |
1992 | path_var_name)); | |
c906108c SS |
1993 | puts_filtered ("\n"); |
1994 | } | |
1995 | ||
1996 | /* Add zero or more directories to the front of the execution path. */ | |
1997 | ||
1998 | static void | |
fba45db2 | 1999 | path_command (char *dirname, int from_tty) |
c906108c SS |
2000 | { |
2001 | char *exec_path; | |
2002 | char *env; | |
abbb1732 | 2003 | |
c906108c | 2004 | dont_repeat (); |
3f81c18a | 2005 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
1777feb0 | 2006 | /* Can be null if path is not set. */ |
c906108c SS |
2007 | if (!env) |
2008 | env = ""; | |
4fcf66da | 2009 | exec_path = xstrdup (env); |
c906108c | 2010 | mod_path (dirname, &exec_path); |
3f81c18a | 2011 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 2012 | xfree (exec_path); |
c906108c | 2013 | if (from_tty) |
c5aa993b | 2014 | path_info ((char *) NULL, from_tty); |
c906108c | 2015 | } |
c906108c | 2016 | \f |
c5aa993b | 2017 | |
1292279a PA |
2018 | /* Print out the register NAME with value VAL, to FILE, in the default |
2019 | fashion. */ | |
2020 | ||
2021 | static void | |
2022 | default_print_one_register_info (struct ui_file *file, | |
2023 | const char *name, | |
2024 | struct value *val) | |
2025 | { | |
2026 | struct type *regtype = value_type (val); | |
2027 | ||
2028 | fputs_filtered (name, file); | |
2029 | print_spaces_filtered (15 - strlen (name), file); | |
2030 | ||
2031 | if (!value_entirely_available (val)) | |
2032 | { | |
2033 | fprintf_filtered (file, "*value not available*\n"); | |
2034 | return; | |
2035 | } | |
e4c6a2c4 AB |
2036 | else if (value_optimized_out (val)) |
2037 | { | |
2038 | val_print_optimized_out (file); | |
2039 | fprintf_filtered (file, "\n"); | |
2040 | return; | |
2041 | } | |
1292279a PA |
2042 | |
2043 | /* If virtual format is floating, print it that way, and in raw | |
2044 | hex. */ | |
2045 | if (TYPE_CODE (regtype) == TYPE_CODE_FLT | |
2046 | || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT) | |
2047 | { | |
2048 | int j; | |
2049 | struct value_print_options opts; | |
2050 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
2051 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (regtype)); | |
2052 | ||
2053 | get_user_print_options (&opts); | |
2054 | opts.deref_ref = 1; | |
2055 | ||
2056 | val_print (regtype, | |
2057 | value_contents_for_printing (val), | |
2058 | value_embedded_offset (val), 0, | |
2059 | file, 0, val, &opts, current_language); | |
2060 | ||
cf006359 AB |
2061 | fprintf_filtered (file, "\t(raw "); |
2062 | print_hex_chars (file, valaddr, TYPE_LENGTH (regtype), byte_order); | |
1292279a PA |
2063 | fprintf_filtered (file, ")"); |
2064 | } | |
2065 | else | |
2066 | { | |
2067 | struct value_print_options opts; | |
2068 | ||
2069 | /* Print the register in hex. */ | |
2070 | get_formatted_print_options (&opts, 'x'); | |
2071 | opts.deref_ref = 1; | |
2072 | val_print (regtype, | |
2073 | value_contents_for_printing (val), | |
2074 | value_embedded_offset (val), 0, | |
2075 | file, 0, val, &opts, current_language); | |
2076 | /* If not a vector register, print it also according to its | |
2077 | natural format. */ | |
2078 | if (TYPE_VECTOR (regtype) == 0) | |
2079 | { | |
2080 | get_user_print_options (&opts); | |
2081 | opts.deref_ref = 1; | |
2082 | fprintf_filtered (file, "\t"); | |
2083 | val_print (regtype, | |
2084 | value_contents_for_printing (val), | |
2085 | value_embedded_offset (val), 0, | |
2086 | file, 0, val, &opts, current_language); | |
2087 | } | |
2088 | } | |
2089 | ||
2090 | fprintf_filtered (file, "\n"); | |
2091 | } | |
2092 | ||
1777feb0 | 2093 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
2094 | registers (print_all == 1) or all non-float and non-vector |
2095 | registers (print_all == 0). | |
c906108c SS |
2096 | |
2097 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
2098 | register(s) one per line is good enough. If a different format is |
2099 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
2100 | regs), or there is an existing convention for showing all the | |
2101 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
2102 | provide that format. */ | |
c906108c | 2103 | |
666e11c5 | 2104 | void |
0ab7a791 AC |
2105 | default_print_registers_info (struct gdbarch *gdbarch, |
2106 | struct ui_file *file, | |
2107 | struct frame_info *frame, | |
2108 | int regnum, int print_all) | |
c906108c | 2109 | { |
0ab7a791 | 2110 | int i; |
a4bd449d UW |
2111 | const int numregs = gdbarch_num_regs (gdbarch) |
2112 | + gdbarch_num_pseudo_regs (gdbarch); | |
0ab7a791 | 2113 | |
c906108c SS |
2114 | for (i = 0; i < numregs; i++) |
2115 | { | |
4782dc19 AC |
2116 | /* Decide between printing all regs, non-float / vector regs, or |
2117 | specific reg. */ | |
c5aa993b JM |
2118 | if (regnum == -1) |
2119 | { | |
f9418c0f | 2120 | if (print_all) |
4782dc19 | 2121 | { |
f9418c0f | 2122 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 2123 | continue; |
f9418c0f AC |
2124 | } |
2125 | else | |
2126 | { | |
2127 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
2128 | continue; |
2129 | } | |
c5aa993b JM |
2130 | } |
2131 | else | |
2132 | { | |
2133 | if (i != regnum) | |
2134 | continue; | |
2135 | } | |
c906108c SS |
2136 | |
2137 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 2138 | processor, so don't display anything. */ |
a4bd449d UW |
2139 | if (gdbarch_register_name (gdbarch, i) == NULL |
2140 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
2141 | continue; |
2142 | ||
1292279a PA |
2143 | default_print_one_register_info (file, |
2144 | gdbarch_register_name (gdbarch, i), | |
e4c6a2c4 | 2145 | get_frame_register_value (frame, i)); |
c906108c SS |
2146 | } |
2147 | } | |
c906108c | 2148 | |
c906108c | 2149 | void |
fba45db2 | 2150 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2151 | { |
206415a3 | 2152 | struct frame_info *frame; |
a4bd449d | 2153 | struct gdbarch *gdbarch; |
c906108c SS |
2154 | |
2155 | if (!target_has_registers) | |
8a3fe4f8 | 2156 | error (_("The program has no registers now.")); |
206415a3 | 2157 | frame = get_selected_frame (NULL); |
a4bd449d | 2158 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2159 | |
2160 | if (!addr_exp) | |
2161 | { | |
a4bd449d | 2162 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2163 | frame, -1, fpregs); |
c906108c SS |
2164 | return; |
2165 | } | |
2166 | ||
f9418c0f | 2167 | while (*addr_exp != '\0') |
c5aa993b | 2168 | { |
f9418c0f AC |
2169 | char *start; |
2170 | const char *end; | |
c906108c | 2171 | |
529480d0 KS |
2172 | /* Skip leading white space. */ |
2173 | addr_exp = skip_spaces (addr_exp); | |
c906108c | 2174 | |
f9418c0f AC |
2175 | /* Discard any leading ``$''. Check that there is something |
2176 | resembling a register following it. */ | |
2177 | if (addr_exp[0] == '$') | |
2178 | addr_exp++; | |
2179 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2180 | error (_("Missing register name")); |
c906108c | 2181 | |
f9418c0f AC |
2182 | /* Find the start/end of this register name/num/group. */ |
2183 | start = addr_exp; | |
2184 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2185 | addr_exp++; | |
2186 | end = addr_exp; | |
ad842144 | 2187 | |
f9418c0f AC |
2188 | /* Figure out what we've found and display it. */ |
2189 | ||
2190 | /* A register name? */ | |
2191 | { | |
029a67e4 | 2192 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2193 | |
f9418c0f AC |
2194 | if (regnum >= 0) |
2195 | { | |
ad842144 MR |
2196 | /* User registers lie completely outside of the range of |
2197 | normal registers. Catch them early so that the target | |
2198 | never sees them. */ | |
2199 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2200 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2201 | { | |
1292279a PA |
2202 | struct value *regval = value_of_user_reg (regnum, frame); |
2203 | const char *regname = user_reg_map_regnum_to_name (gdbarch, | |
2204 | regnum); | |
2205 | ||
2206 | /* Print in the same fashion | |
2207 | gdbarch_print_registers_info's default | |
2208 | implementation prints. */ | |
2209 | default_print_one_register_info (gdb_stdout, | |
2210 | regname, | |
2211 | regval); | |
ad842144 MR |
2212 | } |
2213 | else | |
2214 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2215 | frame, regnum, fpregs); | |
f9418c0f AC |
2216 | continue; |
2217 | } | |
2218 | } | |
ad842144 | 2219 | |
f9418c0f AC |
2220 | /* A register group? */ |
2221 | { | |
6c7d17ba | 2222 | struct reggroup *group; |
abbb1732 | 2223 | |
a4bd449d | 2224 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2225 | group != NULL; |
a4bd449d | 2226 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2227 | { |
2228 | /* Don't bother with a length check. Should the user | |
2229 | enter a short register group name, go with the first | |
2230 | group that matches. */ | |
6c7d17ba | 2231 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2232 | break; |
2233 | } | |
6c7d17ba | 2234 | if (group != NULL) |
f9418c0f AC |
2235 | { |
2236 | int regnum; | |
abbb1732 | 2237 | |
f57d151a | 2238 | for (regnum = 0; |
a4bd449d UW |
2239 | regnum < gdbarch_num_regs (gdbarch) |
2240 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2241 | regnum++) |
f9418c0f | 2242 | { |
a4bd449d UW |
2243 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2244 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2245 | gdb_stdout, frame, |
f9418c0f AC |
2246 | regnum, fpregs); |
2247 | } | |
2248 | continue; | |
2249 | } | |
2250 | } | |
c906108c | 2251 | |
f9418c0f | 2252 | /* Nothing matched. */ |
8a3fe4f8 | 2253 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2254 | } |
c906108c SS |
2255 | } |
2256 | ||
1dd5fedc | 2257 | static void |
fba45db2 | 2258 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2259 | { |
2260 | registers_info (addr_exp, 1); | |
2261 | } | |
2262 | ||
a58dd373 | 2263 | static void |
fba45db2 | 2264 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2265 | { |
2266 | registers_info (addr_exp, 0); | |
2267 | } | |
e76f1f2e AC |
2268 | |
2269 | static void | |
d80b854b | 2270 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2271 | struct frame_info *frame, const char *args) |
2272 | { | |
d80b854b UW |
2273 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2274 | ||
e76f1f2e AC |
2275 | if (gdbarch_print_vector_info_p (gdbarch)) |
2276 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2277 | else | |
2278 | { | |
2279 | int regnum; | |
2280 | int printed_something = 0; | |
ab4327e0 | 2281 | |
f57d151a | 2282 | for (regnum = 0; |
a4bd449d UW |
2283 | regnum < gdbarch_num_regs (gdbarch) |
2284 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2285 | regnum++) |
e76f1f2e | 2286 | { |
f9418c0f | 2287 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2288 | { |
2289 | printed_something = 1; | |
e76f1f2e | 2290 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2291 | } |
2292 | } | |
2293 | if (!printed_something) | |
2294 | fprintf_filtered (file, "No vector information\n"); | |
2295 | } | |
2296 | } | |
2297 | ||
2298 | static void | |
2299 | vector_info (char *args, int from_tty) | |
2300 | { | |
206415a3 DJ |
2301 | if (!target_has_registers) |
2302 | error (_("The program has no registers now.")); | |
2303 | ||
d80b854b | 2304 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2305 | } |
c906108c | 2306 | \f |
5fd62852 PA |
2307 | /* Kill the inferior process. Make us have no inferior. */ |
2308 | ||
2309 | static void | |
2310 | kill_command (char *arg, int from_tty) | |
2311 | { | |
2312 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2313 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2314 | some targets don't have processes! */ |
5fd62852 PA |
2315 | |
2316 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2317 | error (_("The program is not being run.")); | |
2318 | if (!query (_("Kill the program being debugged? "))) | |
2319 | error (_("Not confirmed.")); | |
2320 | target_kill (); | |
2321 | ||
c35b1492 PA |
2322 | /* If we still have other inferiors to debug, then don't mess with |
2323 | with their threads. */ | |
2324 | if (!have_inferiors ()) | |
5fd62852 | 2325 | { |
1777feb0 | 2326 | init_thread_list (); /* Destroy thread info. */ |
5fd62852 PA |
2327 | |
2328 | /* Killing off the inferior can leave us with a core file. If | |
2329 | so, print the state we are left in. */ | |
2330 | if (target_has_stack) | |
2331 | { | |
2332 | printf_filtered (_("In %s,\n"), target_longname); | |
08d72866 | 2333 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
5fd62852 PA |
2334 | } |
2335 | } | |
2336 | bfd_cache_close_all (); | |
2337 | } | |
c5aa993b | 2338 | |
74531fed PA |
2339 | /* Used in `attach&' command. ARG is a point to an integer |
2340 | representing a process id. Proceed threads of this process iff | |
2341 | they stopped due to debugger request, and when they did, they | |
a493e3e2 | 2342 | reported a clean stop (GDB_SIGNAL_0). Do not proceed threads |
74531fed PA |
2343 | that have been explicitly been told to stop. */ |
2344 | ||
2345 | static int | |
2346 | proceed_after_attach_callback (struct thread_info *thread, | |
2347 | void *arg) | |
2348 | { | |
2349 | int pid = * (int *) arg; | |
2350 | ||
2351 | if (ptid_get_pid (thread->ptid) == pid | |
2352 | && !is_exited (thread->ptid) | |
2353 | && !is_executing (thread->ptid) | |
2354 | && !thread->stop_requested | |
a493e3e2 | 2355 | && thread->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed PA |
2356 | { |
2357 | switch_to_thread (thread->ptid); | |
2358 | clear_proceed_status (); | |
a493e3e2 | 2359 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2360 | } |
2361 | ||
2362 | return 0; | |
2363 | } | |
2364 | ||
2365 | static void | |
2366 | proceed_after_attach (int pid) | |
2367 | { | |
2368 | /* Don't error out if the current thread is running, because | |
2369 | there may be other stopped threads. */ | |
2370 | struct cleanup *old_chain; | |
2371 | ||
2372 | /* Backup current thread and selected frame. */ | |
2373 | old_chain = make_cleanup_restore_current_thread (); | |
2374 | ||
2375 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2376 | ||
2377 | /* Restore selected ptid. */ | |
2378 | do_cleanups (old_chain); | |
2379 | } | |
2380 | ||
c906108c SS |
2381 | /* |
2382 | * TODO: | |
2383 | * Should save/restore the tty state since it might be that the | |
2384 | * program to be debugged was started on this tty and it wants | |
2385 | * the tty in some state other than what we want. If it's running | |
2386 | * on another terminal or without a terminal, then saving and | |
2387 | * restoring the tty state is a harmless no-op. | |
2388 | * This only needs to be done if we are attaching to a process. | |
2389 | */ | |
2390 | ||
1777feb0 | 2391 | /* attach_command -- |
c906108c SS |
2392 | takes a program started up outside of gdb and ``attaches'' to it. |
2393 | This stops it cold in its tracks and allows us to start debugging it. | |
2394 | and wait for the trace-trap that results from attaching. */ | |
2395 | ||
9356cf8d PA |
2396 | static void |
2397 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2398 | { | |
2399 | char *exec_file; | |
2400 | char *full_exec_path = NULL; | |
d6b48e9c | 2401 | struct inferior *inferior; |
9356cf8d | 2402 | |
d6b48e9c | 2403 | inferior = current_inferior (); |
16c381f0 | 2404 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2405 | |
2406 | /* If no exec file is yet known, try to determine it from the | |
2407 | process itself. */ | |
2408 | exec_file = (char *) get_exec_file (0); | |
2409 | if (!exec_file) | |
2410 | { | |
2411 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2412 | if (exec_file) | |
2413 | { | |
2414 | /* It's possible we don't have a full path, but rather just a | |
2415 | filename. Some targets, such as HP-UX, don't provide the | |
2416 | full path, sigh. | |
2417 | ||
2418 | Attempt to qualify the filename against the source path. | |
2419 | (If that fails, we'll just fall back on the original | |
1777feb0 MS |
2420 | filename. Not much more we can do...) */ |
2421 | ||
9356cf8d | 2422 | if (!source_full_path_of (exec_file, &full_exec_path)) |
1b36a34b | 2423 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2424 | |
2425 | exec_file_attach (full_exec_path, from_tty); | |
2426 | symbol_file_add_main (full_exec_path, from_tty); | |
2427 | } | |
2428 | } | |
2429 | else | |
2430 | { | |
2431 | reopen_exec_file (); | |
2432 | reread_symbols (); | |
2433 | } | |
2434 | ||
2435 | /* Take any necessary post-attaching actions for this platform. */ | |
2436 | target_post_attach (PIDGET (inferior_ptid)); | |
2437 | ||
2438 | post_create_inferior (¤t_target, from_tty); | |
2439 | ||
2440 | /* Install inferior's terminal modes. */ | |
2441 | target_terminal_inferior (); | |
2442 | ||
2443 | if (async_exec) | |
74531fed PA |
2444 | { |
2445 | /* The user requested an `attach&', so be sure to leave threads | |
2446 | that didn't get a signal running. */ | |
2447 | ||
2448 | /* Immediatelly resume all suspended threads of this inferior, | |
2449 | and this inferior only. This should have no effect on | |
2450 | already running threads. If a thread has been stopped with a | |
2451 | signal, leave it be. */ | |
2452 | if (non_stop) | |
2453 | proceed_after_attach (inferior->pid); | |
2454 | else | |
2455 | { | |
a493e3e2 | 2456 | if (inferior_thread ()->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed PA |
2457 | { |
2458 | clear_proceed_status (); | |
a493e3e2 | 2459 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2460 | } |
2461 | } | |
2462 | } | |
9356cf8d PA |
2463 | else |
2464 | { | |
74531fed PA |
2465 | /* The user requested a plain `attach', so be sure to leave |
2466 | the inferior stopped. */ | |
2467 | ||
9356cf8d PA |
2468 | if (target_can_async_p ()) |
2469 | async_enable_stdin (); | |
74531fed PA |
2470 | |
2471 | /* At least the current thread is already stopped. */ | |
2472 | ||
2473 | /* In all-stop, by definition, all threads have to be already | |
2474 | stopped at this point. In non-stop, however, although the | |
2475 | selected thread is stopped, others may still be executing. | |
2476 | Be sure to explicitly stop all threads of the process. This | |
2477 | should have no effect on already stopped threads. */ | |
2478 | if (non_stop) | |
2479 | target_stop (pid_to_ptid (inferior->pid)); | |
2480 | ||
2481 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2482 | normal_stop (); |
2483 | if (deprecated_attach_hook) | |
2484 | deprecated_attach_hook (); | |
2485 | } | |
2486 | } | |
2487 | ||
bfec99b2 | 2488 | struct attach_command_continuation_args |
9356cf8d PA |
2489 | { |
2490 | char *args; | |
2491 | int from_tty; | |
2492 | int async_exec; | |
bfec99b2 | 2493 | }; |
9356cf8d | 2494 | |
bfec99b2 | 2495 | static void |
fa4cd53f | 2496 | attach_command_continuation (void *args, int err) |
bfec99b2 PA |
2497 | { |
2498 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2499 | |
fa4cd53f PA |
2500 | if (err) |
2501 | return; | |
2502 | ||
bfec99b2 | 2503 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2504 | } |
2505 | ||
604ead4a PA |
2506 | static void |
2507 | attach_command_continuation_free_args (void *args) | |
2508 | { | |
2509 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2510 | |
604ead4a PA |
2511 | xfree (a->args); |
2512 | xfree (a); | |
2513 | } | |
2514 | ||
c906108c | 2515 | void |
fba45db2 | 2516 | attach_command (char *args, int from_tty) |
c906108c | 2517 | { |
9356cf8d | 2518 | int async_exec = 0; |
cb0362bb | 2519 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2520 | |
c5aa993b | 2521 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2522 | |
f5656ead | 2523 | if (gdbarch_has_global_solist (target_gdbarch ())) |
2567c7d9 PA |
2524 | /* Don't complain if all processes share the same symbol |
2525 | space. */ | |
8a305172 PA |
2526 | ; |
2527 | else if (target_has_execution) | |
c906108c | 2528 | { |
9e2f0ad4 | 2529 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2530 | target_kill (); |
2531 | else | |
8a3fe4f8 | 2532 | error (_("Not killed.")); |
c906108c SS |
2533 | } |
2534 | ||
fd79ecee DJ |
2535 | /* Clean up any leftovers from other runs. Some other things from |
2536 | this function should probably be moved into target_pre_inferior. */ | |
2537 | target_pre_inferior (from_tty); | |
2538 | ||
9908b566 VP |
2539 | if (non_stop && !target_supports_non_stop ()) |
2540 | error (_("Cannot attach to this target in non-stop mode")); | |
2541 | ||
9356cf8d PA |
2542 | if (args) |
2543 | { | |
2544 | async_exec = strip_bg_char (&args); | |
2545 | ||
2546 | /* If we get a request for running in the bg but the target | |
1777feb0 | 2547 | doesn't support it, error out. */ |
9356cf8d PA |
2548 | if (async_exec && !target_can_async_p ()) |
2549 | error (_("Asynchronous execution not supported on this target.")); | |
2550 | } | |
2551 | ||
2552 | /* If we don't get a request of running in the bg, then we need | |
2553 | to simulate synchronous (fg) execution. */ | |
2554 | if (!async_exec && target_can_async_p ()) | |
2555 | { | |
1777feb0 | 2556 | /* Simulate synchronous execution. */ |
9356cf8d | 2557 | async_disable_stdin (); |
cb0362bb | 2558 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2559 | } |
2560 | ||
c906108c SS |
2561 | target_attach (args, from_tty); |
2562 | ||
2563 | /* Set up the "saved terminal modes" of the inferior | |
2564 | based on what modes we are starting it with. */ | |
2565 | target_terminal_init (); | |
2566 | ||
c906108c SS |
2567 | /* Set up execution context to know that we should return from |
2568 | wait_for_inferior as soon as the target reports a stop. */ | |
2569 | init_wait_for_inferior (); | |
2570 | clear_proceed_status (); | |
c906108c | 2571 | |
74531fed PA |
2572 | if (non_stop) |
2573 | { | |
2574 | /* If we find that the current thread isn't stopped, explicitly | |
2575 | do so now, because we're going to install breakpoints and | |
2576 | poke at memory. */ | |
2577 | ||
2578 | if (async_exec) | |
2579 | /* The user requested an `attach&'; stop just one thread. */ | |
2580 | target_stop (inferior_ptid); | |
2581 | else | |
2582 | /* The user requested an `attach', so stop all threads of this | |
2583 | inferior. */ | |
2584 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2585 | } | |
2586 | ||
dc177b7a PA |
2587 | /* Some system don't generate traps when attaching to inferior. |
2588 | E.g. Mach 3 or GNU hurd. */ | |
2589 | if (!target_attach_no_wait) | |
c5aa993b | 2590 | { |
d6b48e9c PA |
2591 | struct inferior *inferior = current_inferior (); |
2592 | ||
1777feb0 | 2593 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2594 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2595 | need a way for handle_inferior_event to reset the stop_signal | |
2596 | variable after an attach, and this is what | |
2597 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2598 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2599 | |
dc177b7a PA |
2600 | if (target_can_async_p ()) |
2601 | { | |
2602 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2603 | struct attach_command_continuation_args *a; |
2604 | ||
2605 | a = xmalloc (sizeof (*a)); | |
2606 | a->args = xstrdup (args); | |
2607 | a->from_tty = from_tty; | |
2608 | a->async_exec = async_exec; | |
e0ba6746 PA |
2609 | add_inferior_continuation (attach_command_continuation, a, |
2610 | attach_command_continuation_free_args); | |
cb0362bb | 2611 | discard_cleanups (back_to); |
dc177b7a PA |
2612 | return; |
2613 | } | |
c906108c | 2614 | |
e4c8541f | 2615 | wait_for_inferior (); |
dc177b7a | 2616 | } |
6426a772 | 2617 | |
9356cf8d | 2618 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2619 | discard_cleanups (back_to); |
c906108c SS |
2620 | } |
2621 | ||
1941c569 PA |
2622 | /* We had just found out that the target was already attached to an |
2623 | inferior. PTID points at a thread of this new inferior, that is | |
2624 | the most likely to be stopped right now, but not necessarily so. | |
2625 | The new inferior is assumed to be already added to the inferior | |
2626 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2627 | this inferior running, except those we've explicitly seen reported | |
2628 | as stopped. */ | |
2629 | ||
2630 | void | |
2631 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2632 | { | |
2633 | struct cleanup* old_chain; | |
2634 | int async_exec; | |
2635 | ||
2636 | old_chain = make_cleanup (null_cleanup, NULL); | |
2637 | ||
2638 | /* If in non-stop, leave threads as running as they were. If | |
2639 | they're stopped for some reason other than us telling it to, the | |
a493e3e2 | 2640 | target reports a signal != GDB_SIGNAL_0. We don't try to |
1941c569 PA |
2641 | resume threads with such a stop signal. */ |
2642 | async_exec = non_stop; | |
2643 | ||
2644 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2645 | make_cleanup_restore_current_thread (); | |
2646 | ||
2647 | switch_to_thread (ptid); | |
2648 | ||
2649 | /* When we "notice" a new inferior we need to do all the things we | |
2650 | would normally do if we had just attached to it. */ | |
2651 | ||
2652 | if (is_executing (inferior_ptid)) | |
2653 | { | |
2654 | struct inferior *inferior = current_inferior (); | |
2655 | ||
2656 | /* We're going to install breakpoints, and poke at memory, | |
2657 | ensure that the inferior is stopped for a moment while we do | |
2658 | that. */ | |
2659 | target_stop (inferior_ptid); | |
2660 | ||
16c381f0 | 2661 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2662 | |
2663 | /* Wait for stop before proceeding. */ | |
2664 | if (target_can_async_p ()) | |
2665 | { | |
2666 | struct attach_command_continuation_args *a; | |
2667 | ||
2668 | a = xmalloc (sizeof (*a)); | |
2669 | a->args = xstrdup (""); | |
2670 | a->from_tty = from_tty; | |
2671 | a->async_exec = async_exec; | |
2672 | add_inferior_continuation (attach_command_continuation, a, | |
2673 | attach_command_continuation_free_args); | |
2674 | ||
2675 | do_cleanups (old_chain); | |
2676 | return; | |
2677 | } | |
2678 | else | |
e4c8541f | 2679 | wait_for_inferior (); |
1941c569 PA |
2680 | } |
2681 | ||
2682 | async_exec = leave_running; | |
2683 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2684 | ||
2685 | do_cleanups (old_chain); | |
2686 | } | |
2687 | ||
c906108c SS |
2688 | /* |
2689 | * detach_command -- | |
2690 | * takes a program previously attached to and detaches it. | |
2691 | * The program resumes execution and will no longer stop | |
2692 | * on signals, etc. We better not have left any breakpoints | |
2693 | * in the program or it'll die when it hits one. For this | |
2694 | * to work, it may be necessary for the process to have been | |
2695 | * previously attached. It *might* work if the program was | |
2696 | * started via the normal ptrace (PTRACE_TRACEME). | |
2697 | */ | |
2698 | ||
6418d433 | 2699 | void |
fba45db2 | 2700 | detach_command (char *args, int from_tty) |
c906108c | 2701 | { |
1f5d0fc9 | 2702 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2703 | |
2704 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2705 | error (_("The program is not being run.")); | |
2706 | ||
2f9d54cf PA |
2707 | query_if_trace_running (from_tty); |
2708 | ||
2709 | disconnect_tracing (); | |
d5551862 | 2710 | |
c906108c | 2711 | target_detach (args, from_tty); |
50c71eaf PA |
2712 | |
2713 | /* If the solist is global across inferiors, don't clear it when we | |
2714 | detach from a single inferior. */ | |
f5656ead | 2715 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf | 2716 | no_shared_libraries (NULL, from_tty); |
8a305172 | 2717 | |
c35b1492 PA |
2718 | /* If we still have inferiors to debug, then don't mess with their |
2719 | threads. */ | |
2720 | if (!have_inferiors ()) | |
8a305172 PA |
2721 | init_thread_list (); |
2722 | ||
9a4105ab AC |
2723 | if (deprecated_detach_hook) |
2724 | deprecated_detach_hook (); | |
c906108c SS |
2725 | } |
2726 | ||
6ad8ae5c DJ |
2727 | /* Disconnect from the current target without resuming it (leaving it |
2728 | waiting for a debugger). | |
2729 | ||
2730 | We'd better not have left any breakpoints in the program or the | |
2731 | next debugger will get confused. Currently only supported for some | |
2732 | remote targets, since the normal attach mechanisms don't work on | |
2733 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2734 | ||
2735 | static void | |
2736 | disconnect_command (char *args, int from_tty) | |
2737 | { | |
1777feb0 | 2738 | dont_repeat (); /* Not for the faint of heart. */ |
2f9d54cf PA |
2739 | query_if_trace_running (from_tty); |
2740 | disconnect_tracing (); | |
6ad8ae5c | 2741 | target_disconnect (args, from_tty); |
e85a822c | 2742 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2743 | init_thread_list (); |
9a4105ab AC |
2744 | if (deprecated_detach_hook) |
2745 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2746 | } |
2747 | ||
77ebaa5a VP |
2748 | void |
2749 | interrupt_target_1 (int all_threads) | |
2750 | { | |
2751 | ptid_t ptid; | |
abbb1732 | 2752 | |
77ebaa5a VP |
2753 | if (all_threads) |
2754 | ptid = minus_one_ptid; | |
2755 | else | |
2756 | ptid = inferior_ptid; | |
2757 | target_stop (ptid); | |
252fbfc8 PA |
2758 | |
2759 | /* Tag the thread as having been explicitly requested to stop, so | |
2760 | other parts of gdb know not to resume this thread automatically, | |
2761 | if it was stopped due to an internal event. Limit this to | |
2762 | non-stop mode, as when debugging a multi-threaded application in | |
2763 | all-stop mode, we will only get one stop event --- it's undefined | |
2764 | which thread will report the event. */ | |
2765 | if (non_stop) | |
2766 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2767 | } |
2768 | ||
43ff13b4 | 2769 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2770 | the backgound. In all-stop, stop the whole process. In non-stop |
2771 | mode, stop the current thread only by default, or stop all threads | |
2772 | if the `-a' switch is used. */ | |
2773 | ||
2774 | /* interrupt [-a] */ | |
1dd5fedc | 2775 | static void |
fba45db2 | 2776 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2777 | { |
362646f5 | 2778 | if (target_can_async_p ()) |
43ff13b4 | 2779 | { |
8cae4b3f PA |
2780 | int all_threads = 0; |
2781 | ||
1777feb0 | 2782 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2783 | |
8cae4b3f PA |
2784 | if (args != NULL |
2785 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2786 | all_threads = 1; | |
2787 | ||
2788 | if (!non_stop && all_threads) | |
2789 | error (_("-a is meaningless in all-stop mode.")); | |
2790 | ||
77ebaa5a | 2791 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2792 | } |
2793 | } | |
2794 | ||
c906108c | 2795 | static void |
d80b854b | 2796 | print_float_info (struct ui_file *file, |
23e3a7ac | 2797 | struct frame_info *frame, const char *args) |
c906108c | 2798 | { |
d80b854b UW |
2799 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2800 | ||
23e3a7ac AC |
2801 | if (gdbarch_print_float_info_p (gdbarch)) |
2802 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2803 | else | |
2804 | { | |
23e3a7ac AC |
2805 | int regnum; |
2806 | int printed_something = 0; | |
ab4327e0 | 2807 | |
f57d151a | 2808 | for (regnum = 0; |
a4bd449d UW |
2809 | regnum < gdbarch_num_regs (gdbarch) |
2810 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2811 | regnum++) |
23e3a7ac | 2812 | { |
f9418c0f | 2813 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2814 | { |
2815 | printed_something = 1; | |
23e3a7ac | 2816 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2817 | } |
2818 | } | |
2819 | if (!printed_something) | |
3e43a32a MS |
2820 | fprintf_filtered (file, "No floating-point info " |
2821 | "available for this processor.\n"); | |
23e3a7ac AC |
2822 | } |
2823 | } | |
2824 | ||
2825 | static void | |
2826 | float_info (char *args, int from_tty) | |
2827 | { | |
206415a3 DJ |
2828 | if (!target_has_registers) |
2829 | error (_("The program has no registers now.")); | |
2830 | ||
d80b854b | 2831 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2832 | } |
2833 | \f | |
c906108c | 2834 | static void |
fba45db2 | 2835 | unset_command (char *args, int from_tty) |
c906108c | 2836 | { |
3e43a32a MS |
2837 | printf_filtered (_("\"unset\" must be followed by the " |
2838 | "name of an unset subcommand.\n")); | |
c906108c SS |
2839 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2840 | } | |
2841 | ||
145b16a9 UW |
2842 | /* Implement `info proc' family of commands. */ |
2843 | ||
2844 | static void | |
2845 | info_proc_cmd_1 (char *args, enum info_proc_what what, int from_tty) | |
2846 | { | |
3030c96e UW |
2847 | struct gdbarch *gdbarch = get_current_arch (); |
2848 | ||
451b7c33 TT |
2849 | if (!target_info_proc (args, what)) |
2850 | { | |
2851 | if (gdbarch_info_proc_p (gdbarch)) | |
2852 | gdbarch_info_proc (gdbarch, args, what); | |
2853 | else | |
2854 | error (_("Not supported on this target.")); | |
2855 | } | |
145b16a9 UW |
2856 | } |
2857 | ||
2858 | /* Implement `info proc' when given without any futher parameters. */ | |
2859 | ||
2860 | static void | |
2861 | info_proc_cmd (char *args, int from_tty) | |
2862 | { | |
2863 | info_proc_cmd_1 (args, IP_MINIMAL, from_tty); | |
2864 | } | |
2865 | ||
2866 | /* Implement `info proc mappings'. */ | |
2867 | ||
2868 | static void | |
2869 | info_proc_cmd_mappings (char *args, int from_tty) | |
2870 | { | |
2871 | info_proc_cmd_1 (args, IP_MAPPINGS, from_tty); | |
2872 | } | |
2873 | ||
2874 | /* Implement `info proc stat'. */ | |
2875 | ||
2876 | static void | |
2877 | info_proc_cmd_stat (char *args, int from_tty) | |
2878 | { | |
2879 | info_proc_cmd_1 (args, IP_STAT, from_tty); | |
2880 | } | |
2881 | ||
2882 | /* Implement `info proc status'. */ | |
2883 | ||
2884 | static void | |
2885 | info_proc_cmd_status (char *args, int from_tty) | |
2886 | { | |
2887 | info_proc_cmd_1 (args, IP_STATUS, from_tty); | |
2888 | } | |
2889 | ||
2890 | /* Implement `info proc cwd'. */ | |
2891 | ||
2892 | static void | |
2893 | info_proc_cmd_cwd (char *args, int from_tty) | |
2894 | { | |
2895 | info_proc_cmd_1 (args, IP_CWD, from_tty); | |
2896 | } | |
2897 | ||
2898 | /* Implement `info proc cmdline'. */ | |
2899 | ||
2900 | static void | |
2901 | info_proc_cmd_cmdline (char *args, int from_tty) | |
2902 | { | |
2903 | info_proc_cmd_1 (args, IP_CMDLINE, from_tty); | |
2904 | } | |
2905 | ||
2906 | /* Implement `info proc exe'. */ | |
2907 | ||
2908 | static void | |
2909 | info_proc_cmd_exe (char *args, int from_tty) | |
2910 | { | |
2911 | info_proc_cmd_1 (args, IP_EXE, from_tty); | |
2912 | } | |
2913 | ||
2914 | /* Implement `info proc all'. */ | |
2915 | ||
2916 | static void | |
2917 | info_proc_cmd_all (char *args, int from_tty) | |
2918 | { | |
2919 | info_proc_cmd_1 (args, IP_ALL, from_tty); | |
2920 | } | |
2921 | ||
c906108c | 2922 | void |
fba45db2 | 2923 | _initialize_infcmd (void) |
c906108c | 2924 | { |
145b16a9 | 2925 | static struct cmd_list_element *info_proc_cmdlist; |
3cb3b8df | 2926 | struct cmd_list_element *c = NULL; |
6f937416 | 2927 | const char *cmd_name; |
3cb3b8df | 2928 | |
1777feb0 | 2929 | /* Add the filename of the terminal connected to inferior I/O. */ |
3cb3b8df | 2930 | add_setshow_filename_cmd ("inferior-tty", class_run, |
3f81c18a | 2931 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
2932 | Set terminal for future runs of program being debugged."), _("\ |
2933 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
2934 | Usage: set inferior-tty /dev/pts/1"), |
2935 | set_inferior_tty_command, | |
2936 | show_inferior_tty_command, | |
2937 | &setlist, &showlist); | |
3cb3b8df | 2938 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 2939 | |
6ace3df1 YQ |
2940 | cmd_name = "args"; |
2941 | add_setshow_string_noescape_cmd (cmd_name, class_run, | |
2942 | &inferior_args_scratch, _("\ | |
b4b4ac0b AC |
2943 | Set argument list to give program being debugged when it is started."), _("\ |
2944 | Show argument list to give program being debugged when it is started."), _("\ | |
2945 | Follow this command with any number of args, to be passed to the program."), | |
6ace3df1 YQ |
2946 | set_args_command, |
2947 | show_args_command, | |
2948 | &setlist, &showlist); | |
2949 | c = lookup_cmd (&cmd_name, setlist, "", -1, 1); | |
2950 | gdb_assert (c != NULL); | |
2951 | set_cmd_completer (c, filename_completer); | |
c906108c | 2952 | |
1a966eab AC |
2953 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2954 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2955 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2956 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2957 | environment to be given to the program."), &showlist); |
5ba2abeb | 2958 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2959 | |
2960 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2961 | _("Complement to certain \"set\" commands."), |
c906108c | 2962 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2963 | |
1a966eab AC |
2964 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2965 | Cancel environment variable VAR for the program.\n\ | |
2966 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2967 | &unsetlist); |
5ba2abeb | 2968 | set_cmd_completer (c, noop_completer); |
c906108c | 2969 | |
1a966eab AC |
2970 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2971 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2972 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2973 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2974 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2975 | &setlist); |
5ba2abeb | 2976 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2977 | |
1bedd215 AC |
2978 | c = add_com ("path", class_files, path_command, _("\ |
2979 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2980 | $cwd in the path means the current working directory.\n\ |
2981 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2982 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
2983 | fully linked executable files and separately compiled object files as \ |
2984 | needed.")); | |
5ba2abeb | 2985 | set_cmd_completer (c, filename_completer); |
c906108c | 2986 | |
1a966eab AC |
2987 | c = add_cmd ("paths", no_class, path_info, _("\ |
2988 | Current search path for finding object files.\n\ | |
c906108c SS |
2989 | $cwd in the path means the current working directory.\n\ |
2990 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2991 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
2992 | fully linked executable files and separately compiled object files as \ |
2993 | needed."), | |
c906108c | 2994 | &showlist); |
5ba2abeb | 2995 | set_cmd_completer (c, noop_completer); |
c906108c | 2996 | |
2277426b PA |
2997 | add_prefix_cmd ("kill", class_run, kill_command, |
2998 | _("Kill execution of program being debugged."), | |
2999 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 3000 | |
1bedd215 AC |
3001 | add_com ("attach", class_run, attach_command, _("\ |
3002 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
3003 | This command attaches to another target, of the same type as your last\n\ |
3004 | \"target\" command (\"info files\" will show your target stack).\n\ | |
3005 | The command may take as argument a process id or a device file.\n\ | |
3006 | For a process id, you must have permission to send the process a signal,\n\ | |
3007 | and it must have the same effective uid as the debugger.\n\ | |
3008 | When using \"attach\" with a process id, the debugger finds the\n\ | |
3009 | program running in the process, looking first in the current working\n\ | |
3010 | directory, or (if not found there) using the source file search path\n\ | |
3011 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 3012 | to specify the program, and to load its symbol table.")); |
c906108c | 3013 | |
f73adfeb | 3014 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 3015 | Detach a process or file previously attached.\n\ |
c906108c | 3016 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
3017 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
3018 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 3019 | |
1bedd215 AC |
3020 | add_com ("disconnect", class_run, disconnect_command, _("\ |
3021 | Disconnect from a target.\n\ | |
6ad8ae5c | 3022 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 3023 | all targets.")); |
6ad8ae5c | 3024 | |
de0bea00 | 3025 | c = add_com ("signal", class_run, signal_command, _("\ |
486c7739 MF |
3026 | Continue program with the specified signal.\n\ |
3027 | Usage: signal SIGNAL\n\ | |
2edda2ff | 3028 | The SIGNAL argument is processed the same as the handle command.\n\ |
486c7739 MF |
3029 | \n\ |
3030 | An argument of \"0\" means continue the program without sending it a signal.\n\ | |
3031 | This is useful in cases where the program stopped because of a signal,\n\ | |
3032 | and you want to resume the program while discarding the signal.")); | |
de0bea00 | 3033 | set_cmd_completer (c, signal_completer); |
c906108c | 3034 | |
1bedd215 AC |
3035 | add_com ("stepi", class_run, stepi_command, _("\ |
3036 | Step one instruction exactly.\n\ | |
486c7739 MF |
3037 | Usage: stepi [N]\n\ |
3038 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3039 | reason).")); |
c906108c SS |
3040 | add_com_alias ("si", "stepi", class_alias, 0); |
3041 | ||
1bedd215 AC |
3042 | add_com ("nexti", class_run, nexti_command, _("\ |
3043 | Step one instruction, but proceed through subroutine calls.\n\ | |
486c7739 MF |
3044 | Usage: nexti [N]\n\ |
3045 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3046 | reason).")); |
c906108c SS |
3047 | add_com_alias ("ni", "nexti", class_alias, 0); |
3048 | ||
1bedd215 AC |
3049 | add_com ("finish", class_run, finish_command, _("\ |
3050 | Execute until selected stack frame returns.\n\ | |
486c7739 | 3051 | Usage: finish\n\ |
1bedd215 | 3052 | Upon return, the value returned is printed and put in the value history.")); |
0e479716 | 3053 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 3054 | |
1bedd215 AC |
3055 | add_com ("next", class_run, next_command, _("\ |
3056 | Step program, proceeding through subroutine calls.\n\ | |
486c7739 MF |
3057 | Usage: next [N]\n\ |
3058 | Unlike \"step\", if the current source line calls a subroutine,\n\ | |
3059 | this command does not enter the subroutine, but instead steps over\n\ | |
dbf6a605 | 3060 | the call, in effect treating it as a single source line.")); |
c906108c SS |
3061 | add_com_alias ("n", "next", class_run, 1); |
3062 | if (xdb_commands) | |
c5aa993b | 3063 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 3064 | |
1bedd215 AC |
3065 | add_com ("step", class_run, step_command, _("\ |
3066 | Step program until it reaches a different source line.\n\ | |
486c7739 MF |
3067 | Usage: step [N]\n\ |
3068 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3069 | reason).")); |
c906108c SS |
3070 | add_com_alias ("s", "step", class_run, 1); |
3071 | ||
1bedd215 AC |
3072 | c = add_com ("until", class_run, until_command, _("\ |
3073 | Execute until the program reaches a source line greater than the current\n\ | |
3e43a32a MS |
3074 | or a specified location (same args as break command) within the current \ |
3075 | frame.")); | |
5ba2abeb | 3076 | set_cmd_completer (c, location_completer); |
c906108c | 3077 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 3078 | |
1bedd215 | 3079 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
3080 | Continue the program up to the given location (same form as args for break \ |
3081 | command).\n\ | |
1bedd215 | 3082 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
3083 | set_cmd_completer (c, location_completer); |
3084 | ||
1bedd215 AC |
3085 | c = add_com ("jump", class_run, jump_command, _("\ |
3086 | Continue program being debugged at specified line or address.\n\ | |
486c7739 | 3087 | Usage: jump <location>\n\ |
c906108c | 3088 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 3089 | for an address to start at.")); |
5ba2abeb | 3090 | set_cmd_completer (c, location_completer); |
c1d780c2 | 3091 | add_com_alias ("j", "jump", class_run, 1); |
c906108c | 3092 | |
b83266a0 | 3093 | if (xdb_commands) |
c94fdfd0 | 3094 | { |
1bedd215 AC |
3095 | c = add_com ("go", class_run, go_command, _("\ |
3096 | Usage: go <location>\n\ | |
c906108c SS |
3097 | Continue program being debugged, stopping at specified line or \n\ |
3098 | address.\n\ | |
3099 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
3100 | expression for an address to start at.\n\ | |
1bedd215 | 3101 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 3102 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 3103 | } |
b83266a0 | 3104 | |
c906108c | 3105 | if (xdb_commands) |
c5aa993b | 3106 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 3107 | |
df983543 | 3108 | add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 3109 | Continue program being debugged, after signal or breakpoint.\n\ |
486c7739 | 3110 | Usage: continue [N]\n\ |
c906108c SS |
3111 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
3112 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
3113 | the breakpoint won't break until the Nth time it is reached).\n\ |
3114 | \n\ | |
3115 | If non-stop mode is enabled, continue only the current thread,\n\ | |
3116 | otherwise all the threads in the program are continued. To \n\ | |
3117 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
3118 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
3119 | add_com_alias ("c", "cont", class_run, 1); |
3120 | add_com_alias ("fg", "cont", class_run, 1); | |
3121 | ||
1bedd215 AC |
3122 | c = add_com ("run", class_run, run_command, _("\ |
3123 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c | 3124 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
3e43a32a MS |
3125 | Input and output redirection with \">\", \"<\", or \">>\" are also \ |
3126 | allowed.\n\n\ | |
3127 | With no arguments, uses arguments last specified (with \"run\" \ | |
3128 | or \"set args\").\n\ | |
c906108c | 3129 | To cancel previous arguments and run with no arguments,\n\ |
1bedd215 | 3130 | use \"set args\" without arguments.")); |
5ba2abeb | 3131 | set_cmd_completer (c, filename_completer); |
c906108c SS |
3132 | add_com_alias ("r", "run", class_run, 1); |
3133 | if (xdb_commands) | |
3134 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 3135 | _("Start debugged program with no arguments.")); |
c906108c | 3136 | |
1bedd215 | 3137 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
3138 | Run the debugged program until the beginning of the main procedure.\n\ |
3139 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 3140 | \"run\" command.")); |
a4d5f2e0 JB |
3141 | set_cmd_completer (c, filename_completer); |
3142 | ||
df983543 MS |
3143 | add_com ("interrupt", class_run, interrupt_target_command, |
3144 | _("Interrupt the execution of the debugged program.\n\ | |
8cae4b3f PA |
3145 | If non-stop mode is enabled, interrupt only the current thread,\n\ |
3146 | otherwise all the threads in the program are stopped. To \n\ | |
3147 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 3148 | |
1bedd215 AC |
3149 | add_info ("registers", nofp_registers_info, _("\ |
3150 | List of integer registers and their contents, for selected stack frame.\n\ | |
3151 | Register name as argument means describe only that register.")); | |
7194c49b | 3152 | add_info_alias ("r", "registers", 1); |
c906108c SS |
3153 | |
3154 | if (xdb_commands) | |
1bedd215 AC |
3155 | add_com ("lr", class_info, nofp_registers_info, _("\ |
3156 | List of integer registers and their contents, for selected stack frame.\n\ | |
3157 | Register name as argument means describe only that register.")); | |
3158 | add_info ("all-registers", all_registers_info, _("\ | |
3159 | List of all registers and their contents, for selected stack frame.\n\ | |
3160 | Register name as argument means describe only that register.")); | |
c906108c SS |
3161 | |
3162 | add_info ("program", program_info, | |
1bedd215 | 3163 | _("Execution status of the program.")); |
c906108c SS |
3164 | |
3165 | add_info ("float", float_info, | |
1bedd215 | 3166 | _("Print the status of the floating point unit\n")); |
c906108c | 3167 | |
e76f1f2e | 3168 | add_info ("vector", vector_info, |
1bedd215 | 3169 | _("Print the status of the vector unit\n")); |
145b16a9 UW |
3170 | |
3171 | add_prefix_cmd ("proc", class_info, info_proc_cmd, | |
3172 | _("\ | |
3173 | Show /proc process information about any running process.\n\ | |
3174 | Specify any process id, or use the program being debugged by default."), | |
3175 | &info_proc_cmdlist, "info proc ", | |
3176 | 1/*allow-unknown*/, &infolist); | |
3177 | ||
3178 | add_cmd ("mappings", class_info, info_proc_cmd_mappings, _("\ | |
3179 | List of mapped memory regions."), | |
3180 | &info_proc_cmdlist); | |
3181 | ||
3182 | add_cmd ("stat", class_info, info_proc_cmd_stat, _("\ | |
3183 | List process info from /proc/PID/stat."), | |
3184 | &info_proc_cmdlist); | |
3185 | ||
3186 | add_cmd ("status", class_info, info_proc_cmd_status, _("\ | |
3187 | List process info from /proc/PID/status."), | |
3188 | &info_proc_cmdlist); | |
3189 | ||
3190 | add_cmd ("cwd", class_info, info_proc_cmd_cwd, _("\ | |
3191 | List current working directory of the process."), | |
3192 | &info_proc_cmdlist); | |
3193 | ||
3194 | add_cmd ("cmdline", class_info, info_proc_cmd_cmdline, _("\ | |
3195 | List command line arguments of the process."), | |
3196 | &info_proc_cmdlist); | |
3197 | ||
3198 | add_cmd ("exe", class_info, info_proc_cmd_exe, _("\ | |
3199 | List absolute filename for executable of the process."), | |
3200 | &info_proc_cmdlist); | |
3201 | ||
3202 | add_cmd ("all", class_info, info_proc_cmd_all, _("\ | |
3203 | List all available /proc info."), | |
3204 | &info_proc_cmdlist); | |
c906108c | 3205 | } |