Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
0b302171 | 3 | Copyright (C) 1986-2012 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" |
d5551862 | 59 | |
a58dd373 | 60 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 61 | |
a14ed312 | 62 | void all_registers_info (char *, int); |
c906108c | 63 | |
a14ed312 | 64 | void registers_info (char *, int); |
c906108c | 65 | |
a58dd373 EZ |
66 | void nexti_command (char *, int); |
67 | ||
68 | void stepi_command (char *, int); | |
c906108c | 69 | |
a14ed312 | 70 | void continue_command (char *, int); |
c906108c | 71 | |
a58dd373 EZ |
72 | void interrupt_target_command (char *args, int from_tty); |
73 | ||
74 | /* Local functions: */ | |
75 | ||
76 | static void nofp_registers_info (char *, int); | |
77 | ||
6a3a010b | 78 | static void print_return_value (struct value *function, |
c055b101 | 79 | struct type *value_type); |
11cf8741 | 80 | |
a14ed312 | 81 | static void until_next_command (int); |
c906108c | 82 | |
a14ed312 | 83 | static void until_command (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void path_info (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void path_command (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void unset_command (char *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void float_info (char *, int); |
c906108c | 92 | |
6ad8ae5c DJ |
93 | static void disconnect_command (char *, int); |
94 | ||
a14ed312 | 95 | static void unset_environment_command (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void set_environment_command (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void environment_info (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void program_info (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void finish_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void signal_command (char *, int); |
c906108c | 106 | |
a14ed312 | 107 | static void jump_command (char *, int); |
c906108c | 108 | |
a14ed312 | 109 | static void step_1 (int, int, char *); |
3e43a32a MS |
110 | static void step_once (int skip_subroutines, int single_inst, |
111 | int count, int thread); | |
c906108c | 112 | |
a14ed312 | 113 | static void next_command (char *, int); |
c906108c | 114 | |
a14ed312 | 115 | static void step_command (char *, int); |
c906108c | 116 | |
a14ed312 | 117 | static void run_command (char *, int); |
c906108c | 118 | |
a14ed312 | 119 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 120 | |
a14ed312 | 121 | static void go_command (char *line_no, int from_tty); |
392a587b | 122 | |
a14ed312 | 123 | static int strip_bg_char (char **); |
43ff13b4 | 124 | |
a14ed312 | 125 | void _initialize_infcmd (void); |
c906108c | 126 | |
c906108c | 127 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 128 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 129 | |
3e43a32a MS |
130 | /* Scratch area where string containing arguments to give to the |
131 | program will be stored by 'set args'. As soon as anything is | |
132 | stored, notice_args_set will move it into per-inferior storage. | |
1777feb0 | 133 | Arguments are separated by spaces. Empty string (pointer to '\0') |
3e43a32a | 134 | means no args. */ |
c906108c | 135 | |
3f81c18a | 136 | static char *inferior_args_scratch; |
c906108c | 137 | |
3f81c18a VP |
138 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
139 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 140 | |
3f81c18a | 141 | static char *inferior_io_terminal_scratch; |
c906108c SS |
142 | |
143 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
144 | Since various parts of infrun.c test this to see whether there is a program | |
145 | being debugged it should be nonzero (currently 3 is used) for remote | |
146 | debugging. */ | |
147 | ||
39f77062 | 148 | ptid_t inferior_ptid; |
c906108c | 149 | |
c906108c SS |
150 | /* Address at which inferior stopped. */ |
151 | ||
152 | CORE_ADDR stop_pc; | |
153 | ||
c906108c SS |
154 | /* Flag indicating that a command has proceeded the inferior past the |
155 | current breakpoint. */ | |
156 | ||
157 | int breakpoint_proceeded; | |
158 | ||
c906108c SS |
159 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
160 | ||
aa7d318d | 161 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
162 | |
163 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
164 | process. */ | |
165 | ||
166 | int stopped_by_random_signal; | |
167 | ||
c906108c | 168 | \f |
1777feb0 | 169 | /* Accessor routines. */ |
07091751 | 170 | |
3f81c18a VP |
171 | /* Set the io terminal for the current inferior. Ownership of |
172 | TERMINAL_NAME is not transferred. */ | |
173 | ||
3cb3b8df BR |
174 | void |
175 | set_inferior_io_terminal (const char *terminal_name) | |
176 | { | |
3f81c18a VP |
177 | xfree (current_inferior ()->terminal); |
178 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
179 | } |
180 | ||
181 | const char * | |
182 | get_inferior_io_terminal (void) | |
183 | { | |
3f81c18a VP |
184 | return current_inferior ()->terminal; |
185 | } | |
186 | ||
187 | static void | |
188 | set_inferior_tty_command (char *args, int from_tty, | |
189 | struct cmd_list_element *c) | |
190 | { | |
191 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
192 | Now route it to current inferior. */ | |
193 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
194 | } | |
195 | ||
196 | static void | |
197 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
198 | struct cmd_list_element *c, const char *value) | |
199 | { | |
200 | /* Note that we ignore the passed-in value in favor of computing it | |
201 | directly. */ | |
275f2e57 | 202 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 203 | |
275f2e57 DJ |
204 | if (inferior_io_terminal == NULL) |
205 | inferior_io_terminal = ""; | |
3f81c18a | 206 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
207 | _("Terminal for future runs of program being debugged " |
208 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
209 | } |
210 | ||
07091751 FN |
211 | char * |
212 | get_inferior_args (void) | |
213 | { | |
3f81c18a | 214 | if (current_inferior ()->argc != 0) |
552c04a7 | 215 | { |
3f81c18a | 216 | char *n; |
552c04a7 | 217 | |
3f81c18a VP |
218 | n = construct_inferior_arguments (current_inferior ()->argc, |
219 | current_inferior ()->argv); | |
220 | set_inferior_args (n); | |
221 | xfree (n); | |
552c04a7 TT |
222 | } |
223 | ||
3f81c18a VP |
224 | if (current_inferior ()->args == NULL) |
225 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 226 | |
3f81c18a | 227 | return current_inferior ()->args; |
07091751 FN |
228 | } |
229 | ||
3f81c18a VP |
230 | /* Set the arguments for the current inferior. Ownership of |
231 | NEWARGS is not transferred. */ | |
232 | ||
233 | void | |
07091751 FN |
234 | set_inferior_args (char *newargs) |
235 | { | |
3f81c18a VP |
236 | xfree (current_inferior ()->args); |
237 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
238 | current_inferior ()->argc = 0; | |
239 | current_inferior ()->argv = 0; | |
07091751 | 240 | } |
c5aa993b | 241 | |
552c04a7 TT |
242 | void |
243 | set_inferior_args_vector (int argc, char **argv) | |
244 | { | |
3f81c18a VP |
245 | current_inferior ()->argc = argc; |
246 | current_inferior ()->argv = argv; | |
552c04a7 TT |
247 | } |
248 | ||
249 | /* Notice when `set args' is run. */ | |
250 | static void | |
3f81c18a | 251 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 252 | { |
3f81c18a VP |
253 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
254 | Now route it to current inferior. */ | |
255 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
256 | } |
257 | ||
258 | /* Notice when `show args' is run. */ | |
259 | static void | |
3f81c18a VP |
260 | show_args_command (struct ui_file *file, int from_tty, |
261 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 262 | { |
258c00cc TT |
263 | /* Note that we ignore the passed-in value in favor of computing it |
264 | directly. */ | |
265 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
266 | } |
267 | ||
c2a727fa TT |
268 | \f |
269 | /* Compute command-line string given argument vector. This does the | |
270 | same shell processing as fork_inferior. */ | |
c2a727fa | 271 | char * |
bd57a748 | 272 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
273 | { |
274 | char *result; | |
275 | ||
276 | if (STARTUP_WITH_SHELL) | |
277 | { | |
5d60742e EZ |
278 | #ifdef __MINGW32__ |
279 | /* This holds all the characters considered special to the | |
280 | Windows shells. */ | |
281 | char *special = "\"!&*|[]{}<>?`~^=;, \t\n"; | |
282 | const char quote = '"'; | |
283 | #else | |
c2a727fa TT |
284 | /* This holds all the characters considered special to the |
285 | typical Unix shells. We include `^' because the SunOS | |
286 | /bin/sh treats it as a synonym for `|'. */ | |
5d60742e EZ |
287 | char *special = "\"!#$&*()\\|[]{}<>?'`~^; \t\n"; |
288 | const char quote = '\''; | |
289 | #endif | |
c2a727fa TT |
290 | int i; |
291 | int length = 0; | |
292 | char *out, *cp; | |
293 | ||
294 | /* We over-compute the size. It shouldn't matter. */ | |
295 | for (i = 0; i < argc; ++i) | |
c2226152 | 296 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
297 | |
298 | result = (char *) xmalloc (length); | |
299 | out = result; | |
300 | ||
301 | for (i = 0; i < argc; ++i) | |
302 | { | |
303 | if (i > 0) | |
304 | *out++ = ' '; | |
305 | ||
03c6228e AS |
306 | /* Need to handle empty arguments specially. */ |
307 | if (argv[i][0] == '\0') | |
c2a727fa | 308 | { |
5d60742e EZ |
309 | *out++ = quote; |
310 | *out++ = quote; | |
03c6228e AS |
311 | } |
312 | else | |
313 | { | |
5d60742e EZ |
314 | #ifdef __MINGW32__ |
315 | int quoted = 0; | |
316 | ||
317 | if (strpbrk (argv[i], special)) | |
318 | { | |
319 | quoted = 1; | |
320 | *out++ = quote; | |
321 | } | |
322 | #endif | |
03c6228e AS |
323 | for (cp = argv[i]; *cp; ++cp) |
324 | { | |
c2226152 AS |
325 | if (*cp == '\n') |
326 | { | |
327 | /* A newline cannot be quoted with a backslash (it | |
328 | just disappears), only by putting it inside | |
329 | quotes. */ | |
5d60742e | 330 | *out++ = quote; |
c2226152 | 331 | *out++ = '\n'; |
5d60742e | 332 | *out++ = quote; |
c2226152 AS |
333 | } |
334 | else | |
335 | { | |
5d60742e EZ |
336 | #ifdef __MINGW32__ |
337 | if (*cp == quote) | |
338 | #else | |
c2226152 | 339 | if (strchr (special, *cp) != NULL) |
5d60742e | 340 | #endif |
c2226152 AS |
341 | *out++ = '\\'; |
342 | *out++ = *cp; | |
343 | } | |
03c6228e | 344 | } |
5d60742e EZ |
345 | #ifdef __MINGW32__ |
346 | if (quoted) | |
347 | *out++ = quote; | |
348 | #endif | |
c2a727fa TT |
349 | } |
350 | } | |
351 | *out = '\0'; | |
352 | } | |
353 | else | |
354 | { | |
355 | /* In this case we can't handle arguments that contain spaces, | |
356 | tabs, or newlines -- see breakup_args(). */ | |
357 | int i; | |
358 | int length = 0; | |
359 | ||
360 | for (i = 0; i < argc; ++i) | |
361 | { | |
362 | char *cp = strchr (argv[i], ' '); | |
363 | if (cp == NULL) | |
364 | cp = strchr (argv[i], '\t'); | |
365 | if (cp == NULL) | |
366 | cp = strchr (argv[i], '\n'); | |
367 | if (cp != NULL) | |
3e43a32a MS |
368 | error (_("can't handle command-line " |
369 | "argument containing whitespace")); | |
c2a727fa TT |
370 | length += strlen (argv[i]) + 1; |
371 | } | |
372 | ||
373 | result = (char *) xmalloc (length); | |
374 | result[0] = '\0'; | |
375 | for (i = 0; i < argc; ++i) | |
376 | { | |
377 | if (i > 0) | |
378 | strcat (result, " "); | |
379 | strcat (result, argv[i]); | |
380 | } | |
381 | } | |
382 | ||
383 | return result; | |
384 | } | |
552c04a7 TT |
385 | \f |
386 | ||
43ff13b4 JM |
387 | /* This function detects whether or not a '&' character (indicating |
388 | background execution) has been added as *the last* of the arguments ARGS | |
1777feb0 MS |
389 | of a command. If it has, it removes it and returns 1. Otherwise it |
390 | does nothing and returns 0. */ | |
c5aa993b | 391 | static int |
fba45db2 | 392 | strip_bg_char (char **args) |
43ff13b4 JM |
393 | { |
394 | char *p = NULL; | |
c5aa993b | 395 | |
9846de1b | 396 | p = strchr (*args, '&'); |
c5aa993b | 397 | |
9846de1b | 398 | if (p) |
43ff13b4 JM |
399 | { |
400 | if (p == (*args + strlen (*args) - 1)) | |
401 | { | |
c5aa993b | 402 | if (strlen (*args) > 1) |
43ff13b4 JM |
403 | { |
404 | do | |
405 | p--; | |
406 | while (*p == ' ' || *p == '\t'); | |
407 | *(p + 1) = '\0'; | |
408 | } | |
409 | else | |
410 | *args = 0; | |
411 | return 1; | |
412 | } | |
413 | } | |
414 | return 0; | |
415 | } | |
416 | ||
281b533b DJ |
417 | /* Common actions to take after creating any sort of inferior, by any |
418 | means (running, attaching, connecting, et cetera). The target | |
419 | should be stopped. */ | |
420 | ||
421 | void | |
422 | post_create_inferior (struct target_ops *target, int from_tty) | |
423 | { | |
ce406537 PA |
424 | volatile struct gdb_exception ex; |
425 | ||
b79599ff DP |
426 | /* Be sure we own the terminal in case write operations are performed. */ |
427 | target_terminal_ours (); | |
428 | ||
424163ea DJ |
429 | /* If the target hasn't taken care of this already, do it now. |
430 | Targets which need to access registers during to_open, | |
431 | to_create_inferior, or to_attach should do it earlier; but many | |
432 | don't need to. */ | |
433 | target_find_description (); | |
434 | ||
ce406537 PA |
435 | /* Now that we know the register layout, retrieve current PC. But |
436 | if the PC is unavailable (e.g., we're opening a core file with | |
437 | missing registers info), ignore it. */ | |
438 | stop_pc = 0; | |
439 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
440 | { | |
441 | stop_pc = regcache_read_pc (get_current_regcache ()); | |
442 | } | |
443 | if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR) | |
444 | throw_exception (ex); | |
f698437e | 445 | |
50c71eaf PA |
446 | if (exec_bfd) |
447 | { | |
2eff07b3 PP |
448 | const unsigned solib_add_generation |
449 | = current_program_space->solib_add_generation; | |
450 | ||
9353355f DJ |
451 | /* Create the hooks to handle shared library load and unload |
452 | events. */ | |
453 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 454 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f | 455 | #else |
268a4a75 JK |
456 | solib_create_inferior_hook (from_tty); |
457 | #endif | |
268a4a75 | 458 | |
2eff07b3 PP |
459 | if (current_program_space->solib_add_generation == solib_add_generation) |
460 | { | |
461 | /* The platform-specific hook should load initial shared libraries, | |
462 | but didn't. FROM_TTY will be incorrectly 0 but such solib | |
463 | targets should be fixed anyway. Call it only after the solib | |
464 | target has been initialized by solib_create_inferior_hook. */ | |
465 | ||
466 | if (info_verbose) | |
467 | warning (_("platform-specific solib_create_inferior_hook did " | |
468 | "not load initial shared libraries.")); | |
469 | ||
470 | /* If the solist is global across processes, there's no need to | |
471 | refetch it here. */ | |
f5656ead | 472 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
2eff07b3 | 473 | { |
268a4a75 | 474 | #ifdef SOLIB_ADD |
2eff07b3 | 475 | SOLIB_ADD (NULL, 0, target, auto_solib_add); |
268a4a75 | 476 | #else |
2eff07b3 | 477 | solib_add (NULL, 0, target, auto_solib_add); |
9353355f | 478 | #endif |
2eff07b3 PP |
479 | } |
480 | } | |
9353355f DJ |
481 | } |
482 | ||
ea5d7a99 PM |
483 | /* If the user sets watchpoints before execution having started, |
484 | then she gets software watchpoints, because GDB can't know which | |
485 | target will end up being pushed, or if it supports hardware | |
486 | watchpoints or not. breakpoint_re_set takes care of promoting | |
487 | watchpoints to hardware watchpoints if possible, however, if this | |
488 | new inferior doesn't load shared libraries or we don't pull in | |
489 | symbols from any other source on this target/arch, | |
490 | breakpoint_re_set is never called. Call it now so that software | |
491 | watchpoints get a chance to be promoted to hardware watchpoints | |
492 | if the now pushed target supports hardware watchpoints. */ | |
493 | breakpoint_re_set (); | |
494 | ||
281b533b DJ |
495 | observer_notify_inferior_created (target, from_tty); |
496 | } | |
497 | ||
a4d5f2e0 JB |
498 | /* Kill the inferior if already running. This function is designed |
499 | to be called when we are about to start the execution of the program | |
500 | from the beginning. Ask the user to confirm that he wants to restart | |
501 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 502 | |
8edfe269 | 503 | static void |
a4d5f2e0 JB |
504 | kill_if_already_running (int from_tty) |
505 | { | |
39f77062 | 506 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 507 | { |
8edfe269 DJ |
508 | /* Bail out before killing the program if we will not be able to |
509 | restart it. */ | |
510 | target_require_runnable (); | |
511 | ||
adf40b2e | 512 | if (from_tty |
9e2f0ad4 HZ |
513 | && !query (_("The program being debugged has been started already.\n\ |
514 | Start it from the beginning? "))) | |
8a3fe4f8 | 515 | error (_("Program not restarted.")); |
c906108c | 516 | target_kill (); |
c906108c | 517 | } |
a4d5f2e0 JB |
518 | } |
519 | ||
1777feb0 | 520 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
f67a969f JB |
521 | a temporary breakpoint at the begining of the main program before |
522 | running the program. */ | |
523 | ||
a4d5f2e0 | 524 | static void |
f67a969f | 525 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
526 | { |
527 | char *exec_file; | |
29f49a6a PA |
528 | struct cleanup *old_chain; |
529 | ptid_t ptid; | |
79a45e25 | 530 | struct ui_out *uiout = current_uiout; |
c906108c | 531 | |
a4d5f2e0 JB |
532 | dont_repeat (); |
533 | ||
534 | kill_if_already_running (from_tty); | |
3c35e65b UW |
535 | |
536 | init_wait_for_inferior (); | |
c906108c SS |
537 | clear_breakpoint_hit_counts (); |
538 | ||
fd79ecee DJ |
539 | /* Clean up any leftovers from other runs. Some other things from |
540 | this function should probably be moved into target_pre_inferior. */ | |
541 | target_pre_inferior (from_tty); | |
542 | ||
39ad761d JB |
543 | /* The comment here used to read, "The exec file is re-read every |
544 | time we do a generic_mourn_inferior, so we just have to worry | |
545 | about the symbol file." The `generic_mourn_inferior' function | |
546 | gets called whenever the program exits. However, suppose the | |
547 | program exits, and *then* the executable file changes? We need | |
548 | to check again here. Since reopen_exec_file doesn't do anything | |
549 | if the timestamp hasn't changed, I don't see the harm. */ | |
550 | reopen_exec_file (); | |
c906108c SS |
551 | reread_symbols (); |
552 | ||
f67a969f JB |
553 | /* Insert the temporary breakpoint if a location was specified. */ |
554 | if (tbreak_at_main) | |
555 | tbreak_command (main_name (), 0); | |
556 | ||
39ad761d JB |
557 | exec_file = (char *) get_exec_file (0); |
558 | ||
9908b566 VP |
559 | if (non_stop && !target_supports_non_stop ()) |
560 | error (_("The target does not support running in non-stop mode.")); | |
561 | ||
c906108c SS |
562 | /* We keep symbols from add-symbol-file, on the grounds that the |
563 | user might want to add some symbols before running the program | |
564 | (right?). But sometimes (dynamic loading where the user manually | |
565 | introduces the new symbols with add-symbol-file), the code which | |
566 | the symbols describe does not persist between runs. Currently | |
567 | the user has to manually nuke all symbols between runs if they | |
568 | want them to go away (PR 2207). This is probably reasonable. */ | |
569 | ||
43ff13b4 | 570 | if (!args) |
6426a772 | 571 | { |
362646f5 | 572 | if (target_can_async_p ()) |
6426a772 JM |
573 | async_disable_stdin (); |
574 | } | |
43ff13b4 | 575 | else |
c906108c | 576 | { |
43ff13b4 JM |
577 | int async_exec = strip_bg_char (&args); |
578 | ||
579 | /* If we get a request for running in the bg but the target | |
1777feb0 | 580 | doesn't support it, error out. */ |
362646f5 | 581 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 582 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
583 | |
584 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 585 | to simulate synchronous (fg) execution. */ |
362646f5 | 586 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 587 | { |
1777feb0 | 588 | /* Simulate synchronous execution. */ |
6426a772 | 589 | async_disable_stdin (); |
43ff13b4 JM |
590 | } |
591 | ||
1777feb0 | 592 | /* If there were other args, beside '&', process them. */ |
43ff13b4 | 593 | if (args) |
3f81c18a | 594 | set_inferior_args (args); |
c906108c SS |
595 | } |
596 | ||
597 | if (from_tty) | |
598 | { | |
8b93c638 JM |
599 | ui_out_field_string (uiout, NULL, "Starting program"); |
600 | ui_out_text (uiout, ": "); | |
601 | if (exec_file) | |
602 | ui_out_field_string (uiout, "execfile", exec_file); | |
603 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
604 | /* We call get_inferior_args() because we might need to compute |
605 | the value now. */ | |
606 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
607 | ui_out_text (uiout, "\n"); |
608 | ui_out_flush (uiout); | |
c906108c SS |
609 | } |
610 | ||
552c04a7 TT |
611 | /* We call get_inferior_args() because we might need to compute |
612 | the value now. */ | |
613 | target_create_inferior (exec_file, get_inferior_args (), | |
3e43a32a MS |
614 | environ_vector (current_inferior ()->environment), |
615 | from_tty); | |
281b533b | 616 | |
29f49a6a PA |
617 | /* We're starting off a new process. When we get out of here, in |
618 | non-stop mode, finish the state of all threads of that process, | |
619 | but leave other threads alone, as they may be stopped in internal | |
620 | events --- the frontend shouldn't see them as stopped. In | |
621 | all-stop, always finish the state of all threads, as we may be | |
622 | resuming more than just the new process. */ | |
623 | if (non_stop) | |
624 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
625 | else | |
626 | ptid = minus_one_ptid; | |
627 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
628 | ||
de1b3c3d PA |
629 | /* Pass zero for FROM_TTY, because at this point the "run" command |
630 | has done its thing; now we are setting up the running program. */ | |
631 | post_create_inferior (¤t_target, 0); | |
281b533b | 632 | |
74d1f91e JK |
633 | /* Start the target running. Do not use -1 continuation as it would skip |
634 | breakpoint right at the entry point. */ | |
a493e3e2 | 635 | proceed (regcache_read_pc (get_current_regcache ()), GDB_SIGNAL_0, 0); |
c906108c | 636 | |
29f49a6a PA |
637 | /* Since there was no error, there's no need to finish the thread |
638 | states here. */ | |
639 | discard_cleanups (old_chain); | |
640 | } | |
c906108c | 641 | |
f67a969f JB |
642 | static void |
643 | run_command (char *args, int from_tty) | |
644 | { | |
645 | run_command_1 (args, from_tty, 0); | |
646 | } | |
647 | ||
c906108c | 648 | static void |
fba45db2 | 649 | run_no_args_command (char *args, int from_tty) |
c906108c | 650 | { |
3f81c18a | 651 | set_inferior_args (""); |
c906108c | 652 | } |
c906108c | 653 | \f |
c5aa993b | 654 | |
a4d5f2e0 JB |
655 | /* Start the execution of the program up until the beginning of the main |
656 | program. */ | |
657 | ||
658 | static void | |
659 | start_command (char *args, int from_tty) | |
660 | { | |
661 | /* Some languages such as Ada need to search inside the program | |
662 | minimal symbols for the location where to put the temporary | |
663 | breakpoint before starting. */ | |
664 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 665 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 666 | |
f67a969f JB |
667 | /* Run the program until reaching the main procedure... */ |
668 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
669 | } |
670 | ||
8cae4b3f PA |
671 | static int |
672 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
673 | { | |
74531fed PA |
674 | /* We go through all threads individually instead of compressing |
675 | into a single target `resume_all' request, because some threads | |
676 | may be stopped in internal breakpoints/events, or stopped waiting | |
677 | for its turn in the displaced stepping queue (that is, they are | |
678 | running && !executing). The target side has no idea about why | |
679 | the thread is stopped, so a `resume_all' command would resume too | |
680 | much. If/when GDB gains a way to tell the target `hold this | |
681 | thread stopped until I say otherwise', then we can optimize | |
682 | this. */ | |
4f8d22e3 | 683 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
684 | return 0; |
685 | ||
dcf4fbde | 686 | switch_to_thread (thread->ptid); |
8cae4b3f | 687 | clear_proceed_status (); |
a493e3e2 | 688 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
8cae4b3f PA |
689 | return 0; |
690 | } | |
691 | ||
70221824 | 692 | static void |
d729566a PA |
693 | ensure_valid_thread (void) |
694 | { | |
695 | if (ptid_equal (inferior_ptid, null_ptid) | |
696 | || is_exited (inferior_ptid)) | |
3e43a32a | 697 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
698 | } |
699 | ||
573cda03 | 700 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 701 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
702 | disallow those commands. */ |
703 | ||
70221824 | 704 | static void |
573cda03 SS |
705 | ensure_not_tfind_mode (void) |
706 | { | |
707 | if (get_traceframe_number () >= 0) | |
3e43a32a | 708 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
709 | } |
710 | ||
3d3fef6b YQ |
711 | /* Throw an error indicating the current thread is running. */ |
712 | ||
713 | static void | |
714 | error_is_running (void) | |
715 | { | |
716 | error (_("Cannot execute this command while " | |
717 | "the selected thread is running.")); | |
718 | } | |
719 | ||
720 | /* Calls error_is_running if the current thread is running. */ | |
721 | ||
722 | static void | |
723 | ensure_not_running (void) | |
724 | { | |
725 | if (is_running (inferior_ptid)) | |
726 | error_is_running (); | |
727 | } | |
728 | ||
77ebaa5a VP |
729 | void |
730 | continue_1 (int all_threads) | |
731 | { | |
3d488bfc | 732 | ERROR_NO_INFERIOR; |
573cda03 | 733 | ensure_not_tfind_mode (); |
3d488bfc | 734 | |
77ebaa5a VP |
735 | if (non_stop && all_threads) |
736 | { | |
737 | /* Don't error out if the current thread is running, because | |
abbb1732 | 738 | there may be other stopped threads. */ |
77ebaa5a VP |
739 | struct cleanup *old_chain; |
740 | ||
741 | /* Backup current thread and selected frame. */ | |
742 | old_chain = make_cleanup_restore_current_thread (); | |
743 | ||
744 | iterate_over_threads (proceed_thread_callback, NULL); | |
745 | ||
746 | /* Restore selected ptid. */ | |
747 | do_cleanups (old_chain); | |
748 | } | |
749 | else | |
750 | { | |
d729566a | 751 | ensure_valid_thread (); |
77ebaa5a VP |
752 | ensure_not_running (); |
753 | clear_proceed_status (); | |
a493e3e2 | 754 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
77ebaa5a VP |
755 | } |
756 | } | |
757 | ||
8cae4b3f | 758 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 759 | void |
8cae4b3f | 760 | continue_command (char *args, int from_tty) |
c906108c | 761 | { |
c5aa993b | 762 | int async_exec = 0; |
8cae4b3f | 763 | int all_threads = 0; |
c906108c SS |
764 | ERROR_NO_INFERIOR; |
765 | ||
1777feb0 | 766 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
767 | if (args != NULL) |
768 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
769 | |
770 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 771 | error out. */ |
362646f5 | 772 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 773 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
774 | |
775 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 776 | foreground, synchronously. */ |
362646f5 | 777 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 778 | { |
1777feb0 | 779 | /* Simulate synchronous execution. */ |
6426a772 | 780 | async_disable_stdin (); |
43ff13b4 | 781 | } |
c906108c | 782 | |
8cae4b3f PA |
783 | if (args != NULL) |
784 | { | |
785 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
786 | { | |
787 | all_threads = 1; | |
788 | args += sizeof ("-a") - 1; | |
789 | if (*args == '\0') | |
790 | args = NULL; | |
791 | } | |
792 | } | |
793 | ||
794 | if (!non_stop && all_threads) | |
795 | error (_("`-a' is meaningless in all-stop mode.")); | |
796 | ||
797 | if (args != NULL && all_threads) | |
3e43a32a MS |
798 | error (_("Can't resume all threads and specify " |
799 | "proceed count simultaneously.")); | |
8cae4b3f PA |
800 | |
801 | /* If we have an argument left, set proceed count of breakpoint we | |
802 | stopped at. */ | |
803 | if (args != NULL) | |
c906108c | 804 | { |
347bddb7 | 805 | bpstat bs = NULL; |
8671a17b PA |
806 | int num, stat; |
807 | int stopped = 0; | |
347bddb7 PA |
808 | struct thread_info *tp; |
809 | ||
810 | if (non_stop) | |
e09875d4 | 811 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
812 | else |
813 | { | |
814 | ptid_t last_ptid; | |
815 | struct target_waitstatus ws; | |
816 | ||
817 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 818 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
819 | } |
820 | if (tp != NULL) | |
16c381f0 | 821 | bs = tp->control.stop_bpstat; |
8671a17b PA |
822 | |
823 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
824 | if (stat > 0) | |
825 | { | |
826 | set_ignore_count (num, | |
8cae4b3f | 827 | parse_and_eval_long (args) - 1, |
8671a17b PA |
828 | from_tty); |
829 | /* set_ignore_count prints a message ending with a period. | |
830 | So print two spaces before "Continuing.". */ | |
831 | if (from_tty) | |
832 | printf_filtered (" "); | |
833 | stopped = 1; | |
834 | } | |
835 | ||
836 | if (!stopped && from_tty) | |
c906108c SS |
837 | { |
838 | printf_filtered | |
839 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
840 | } | |
c906108c SS |
841 | } |
842 | ||
843 | if (from_tty) | |
a3f17187 | 844 | printf_filtered (_("Continuing.\n")); |
c906108c | 845 | |
77ebaa5a | 846 | continue_1 (all_threads); |
c906108c SS |
847 | } |
848 | \f | |
edb3359d DJ |
849 | /* Record the starting point of a "step" or "next" command. */ |
850 | ||
851 | static void | |
852 | set_step_frame (void) | |
853 | { | |
854 | struct symtab_and_line sal; | |
855 | ||
856 | find_frame_sal (get_current_frame (), &sal); | |
857 | set_step_info (get_current_frame (), sal); | |
858 | } | |
859 | ||
c906108c SS |
860 | /* Step until outside of current statement. */ |
861 | ||
c906108c | 862 | static void |
fba45db2 | 863 | step_command (char *count_string, int from_tty) |
c906108c SS |
864 | { |
865 | step_1 (0, 0, count_string); | |
866 | } | |
867 | ||
868 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
869 | ||
c906108c | 870 | static void |
fba45db2 | 871 | next_command (char *count_string, int from_tty) |
c906108c SS |
872 | { |
873 | step_1 (1, 0, count_string); | |
874 | } | |
875 | ||
876 | /* Likewise, but step only one instruction. */ | |
877 | ||
c906108c | 878 | void |
fba45db2 | 879 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
880 | { |
881 | step_1 (0, 1, count_string); | |
882 | } | |
883 | ||
c906108c | 884 | void |
fba45db2 | 885 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
886 | { |
887 | step_1 (1, 1, count_string); | |
888 | } | |
889 | ||
186c406b | 890 | void |
611c83ae | 891 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 892 | { |
611c83ae PA |
893 | int thread = * (int *) arg; |
894 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
895 | } |
896 | ||
c906108c | 897 | static void |
fba45db2 | 898 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 899 | { |
52f0bd74 | 900 | int count = 1; |
f107f563 | 901 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 902 | int async_exec = 0; |
b3dc826b | 903 | int thread = -1; |
c5aa993b | 904 | |
c906108c | 905 | ERROR_NO_INFERIOR; |
573cda03 | 906 | ensure_not_tfind_mode (); |
d729566a | 907 | ensure_valid_thread (); |
94cc34af | 908 | ensure_not_running (); |
43ff13b4 JM |
909 | |
910 | if (count_string) | |
911 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 912 | |
43ff13b4 | 913 | /* If we get a request for running in the bg but the target |
1777feb0 | 914 | doesn't support it, error out. */ |
362646f5 | 915 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 916 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
917 | |
918 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 919 | to simulate synchronous (fg) execution. */ |
362646f5 | 920 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 921 | { |
1777feb0 | 922 | /* Simulate synchronous execution. */ |
6426a772 | 923 | async_disable_stdin (); |
43ff13b4 JM |
924 | } |
925 | ||
bb518678 | 926 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 927 | |
1777feb0 | 928 | if (!single_inst || skip_subroutines) /* Leave si command alone. */ |
c906108c | 929 | { |
186c406b TT |
930 | struct thread_info *tp = inferior_thread (); |
931 | ||
611c83ae | 932 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 933 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 934 | |
186c406b | 935 | set_longjmp_breakpoint (tp, get_frame_id (get_current_frame ())); |
611c83ae | 936 | |
b3dc826b | 937 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
938 | } |
939 | ||
37d94800 | 940 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 941 | if (!target_can_async_p ()) |
c2d11a7d JM |
942 | { |
943 | for (; count > 0; count--) | |
944 | { | |
37d94800 | 945 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 946 | |
751b8ce1 PA |
947 | if (!target_has_execution) |
948 | break; | |
c2d11a7d JM |
949 | else |
950 | { | |
751b8ce1 PA |
951 | struct thread_info *tp = inferior_thread (); |
952 | ||
953 | if (!tp->control.stop_step || !tp->step_multi) | |
954 | { | |
955 | /* If we stopped for some reason that is not stepping | |
956 | there are no further steps to make. */ | |
957 | tp->step_multi = 0; | |
958 | break; | |
959 | } | |
c2d11a7d | 960 | } |
c2d11a7d JM |
961 | } |
962 | ||
f107f563 | 963 | do_cleanups (cleanups); |
c2d11a7d | 964 | } |
c2d11a7d JM |
965 | else |
966 | { | |
37d94800 PA |
967 | /* In the case of an asynchronous target things get complicated; |
968 | do only one step for now, before returning control to the | |
969 | event loop. Let the continuation figure out how many other | |
970 | steps we need to do, and handle them one at the time, through | |
971 | step_once. */ | |
b3dc826b | 972 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 973 | |
611c83ae | 974 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
975 | disable the longjmp breakpoint as appropriate. */ |
976 | discard_cleanups (cleanups); | |
c906108c | 977 | } |
c2d11a7d | 978 | } |
c906108c | 979 | |
bfec99b2 PA |
980 | struct step_1_continuation_args |
981 | { | |
982 | int count; | |
983 | int skip_subroutines; | |
984 | int single_inst; | |
985 | int thread; | |
986 | }; | |
987 | ||
c2d11a7d JM |
988 | /* Called after we are done with one step operation, to check whether |
989 | we need to step again, before we print the prompt and return control | |
1777feb0 MS |
990 | to the user. If count is > 1, we will need to do one more call to |
991 | proceed(), via step_once(). Basically it is like step_once and | |
992 | step_1_continuation are co-recursive. */ | |
c2d11a7d | 993 | static void |
fa4cd53f | 994 | step_1_continuation (void *args, int err) |
c2d11a7d | 995 | { |
bfec99b2 | 996 | struct step_1_continuation_args *a = args; |
f13468d9 | 997 | |
af679fd0 | 998 | if (target_has_execution) |
f13468d9 | 999 | { |
af679fd0 PA |
1000 | struct thread_info *tp; |
1001 | ||
1002 | tp = inferior_thread (); | |
fa4cd53f PA |
1003 | if (!err |
1004 | && tp->step_multi && tp->control.stop_step) | |
af679fd0 PA |
1005 | { |
1006 | /* There are more steps to make, and we did stop due to | |
1007 | ending a stepping range. Do another step. */ | |
37d94800 PA |
1008 | step_once (a->skip_subroutines, a->single_inst, |
1009 | a->count - 1, a->thread); | |
af679fd0 PA |
1010 | return; |
1011 | } | |
1012 | tp->step_multi = 0; | |
f107f563 | 1013 | } |
af679fd0 | 1014 | |
fa4cd53f PA |
1015 | /* We either hit an error, or stopped for some reason that is |
1016 | not stepping, or there are no further steps to make. | |
1017 | Cleanup. */ | |
af679fd0 PA |
1018 | if (!a->single_inst || a->skip_subroutines) |
1019 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
1020 | } |
1021 | ||
37d94800 PA |
1022 | /* Do just one step operation. This is useful to implement the 'step |
1023 | n' kind of commands. In case of asynchronous targets, we will have | |
1024 | to set up a continuation to be done after the target stops (after | |
1025 | this one step). For synch targets, the caller handles further | |
1026 | stepping. */ | |
1027 | ||
1028 | static void | |
611c83ae | 1029 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 1030 | { |
edb3359d | 1031 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
1032 | |
1033 | if (count > 0) | |
c906108c | 1034 | { |
4e1c45ea PA |
1035 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
1036 | the longjmp breakpoint was not required. Use the | |
1037 | INFERIOR_PTID thread instead, which is the same thread when | |
1038 | THREAD is set. */ | |
1039 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 1040 | |
c906108c | 1041 | clear_proceed_status (); |
edb3359d | 1042 | set_step_frame (); |
c906108c | 1043 | |
c5aa993b | 1044 | if (!single_inst) |
c906108c | 1045 | { |
1641cfcc PA |
1046 | CORE_ADDR pc; |
1047 | ||
edb3359d DJ |
1048 | /* Step at an inlined function behaves like "down". */ |
1049 | if (!skip_subroutines && !single_inst | |
1050 | && inline_skipped_frames (inferior_ptid)) | |
1051 | { | |
09cee04b PA |
1052 | ptid_t resume_ptid; |
1053 | ||
1054 | /* Pretend that we've ran. */ | |
1055 | resume_ptid = user_visible_resume_ptid (1); | |
1056 | set_running (resume_ptid, 1); | |
1057 | ||
edb3359d DJ |
1058 | step_into_inline_frame (inferior_ptid); |
1059 | if (count > 1) | |
1060 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
1061 | else | |
09cee04b PA |
1062 | { |
1063 | /* Pretend that we've stopped. */ | |
1064 | normal_stop (); | |
1065 | ||
1066 | if (target_can_async_p ()) | |
1067 | inferior_event_handler (INF_EXEC_COMPLETE, NULL); | |
1068 | } | |
edb3359d DJ |
1069 | return; |
1070 | } | |
1071 | ||
1641cfcc PA |
1072 | pc = get_frame_pc (frame); |
1073 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
1074 | &tp->control.step_range_start, |
1075 | &tp->control.step_range_end); | |
5fbbeb29 CF |
1076 | |
1077 | /* If we have no line info, switch to stepi mode. */ | |
16c381f0 JK |
1078 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
1079 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1080 | else if (tp->control.step_range_end == 0) | |
c906108c | 1081 | { |
2c02bd72 | 1082 | const char *name; |
abbb1732 | 1083 | |
1641cfcc | 1084 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1085 | &tp->control.step_range_start, |
1086 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1087 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1088 | |
1089 | target_terminal_ours (); | |
3e43a32a MS |
1090 | printf_filtered (_("Single stepping until exit from function %s," |
1091 | "\nwhich has no line number information.\n"), | |
1092 | name); | |
c906108c SS |
1093 | } |
1094 | } | |
1095 | else | |
1096 | { | |
1097 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1098 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1099 | if (!skip_subroutines) |
1100 | /* It is stepi. | |
1101 | Don't step over function calls, not even to functions lacking | |
1102 | line numbers. */ | |
16c381f0 | 1103 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1104 | } |
1105 | ||
1106 | if (skip_subroutines) | |
16c381f0 | 1107 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1108 | |
95e54da7 | 1109 | tp->step_multi = (count > 1); |
a493e3e2 | 1110 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1111 | |
37d94800 PA |
1112 | /* For async targets, register a continuation to do any |
1113 | additional steps. For sync targets, the caller will handle | |
1114 | further stepping. */ | |
1115 | if (target_can_async_p ()) | |
1116 | { | |
1117 | struct step_1_continuation_args *args; | |
1118 | ||
1119 | args = xmalloc (sizeof (*args)); | |
1120 | args->skip_subroutines = skip_subroutines; | |
1121 | args->single_inst = single_inst; | |
1122 | args->count = count; | |
1123 | args->thread = thread; | |
1124 | ||
1125 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1126 | } | |
c906108c | 1127 | } |
c906108c | 1128 | } |
c2d11a7d | 1129 | |
c906108c SS |
1130 | \f |
1131 | /* Continue program at specified address. */ | |
1132 | ||
1133 | static void | |
fba45db2 | 1134 | jump_command (char *arg, int from_tty) |
c906108c | 1135 | { |
5af949e3 | 1136 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1137 | CORE_ADDR addr; |
c906108c SS |
1138 | struct symtabs_and_lines sals; |
1139 | struct symtab_and_line sal; | |
1140 | struct symbol *fn; | |
1141 | struct symbol *sfn; | |
43ff13b4 | 1142 | int async_exec = 0; |
c5aa993b | 1143 | |
c906108c | 1144 | ERROR_NO_INFERIOR; |
573cda03 | 1145 | ensure_not_tfind_mode (); |
d729566a | 1146 | ensure_valid_thread (); |
94cc34af | 1147 | ensure_not_running (); |
c906108c | 1148 | |
1777feb0 | 1149 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1150 | if (arg != NULL) |
1151 | async_exec = strip_bg_char (&arg); | |
1152 | ||
1153 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1154 | error out. */ |
362646f5 | 1155 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1156 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1157 | |
c906108c | 1158 | if (!arg) |
e2e0b3e5 | 1159 | error_no_arg (_("starting address")); |
c906108c | 1160 | |
39cf75f7 | 1161 | sals = decode_line_with_last_displayed (arg, DECODE_LINE_FUNFIRSTLINE); |
c906108c SS |
1162 | if (sals.nelts != 1) |
1163 | { | |
8a3fe4f8 | 1164 | error (_("Unreasonable jump request")); |
c906108c SS |
1165 | } |
1166 | ||
1167 | sal = sals.sals[0]; | |
b8c9b27d | 1168 | xfree (sals.sals); |
c906108c SS |
1169 | |
1170 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1171 | error (_("No source file has been specified.")); |
c906108c | 1172 | |
1777feb0 | 1173 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1174 | |
1777feb0 | 1175 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1176 | fn = get_frame_function (get_current_frame ()); |
1177 | sfn = find_pc_function (sal.pc); | |
1178 | if (fn != NULL && sfn != fn) | |
1179 | { | |
9e2f0ad4 | 1180 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1181 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1182 | { |
8a3fe4f8 | 1183 | error (_("Not confirmed.")); |
c906108c SS |
1184 | /* NOTREACHED */ |
1185 | } | |
1186 | } | |
1187 | ||
c5aa993b | 1188 | if (sfn != NULL) |
c906108c SS |
1189 | { |
1190 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1191 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1192 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1193 | { |
3e43a32a MS |
1194 | if (!query (_("WARNING!!! Destination is in " |
1195 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1196 | { |
8a3fe4f8 | 1197 | error (_("Not confirmed.")); |
c906108c SS |
1198 | /* NOTREACHED */ |
1199 | } | |
1200 | } | |
1201 | } | |
1202 | ||
c906108c SS |
1203 | addr = sal.pc; |
1204 | ||
1205 | if (from_tty) | |
1206 | { | |
a3f17187 | 1207 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1208 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1209 | printf_filtered (".\n"); |
1210 | } | |
1211 | ||
89113898 | 1212 | /* If we are not asked to run in the bg, then prepare to run in the |
1777feb0 | 1213 | foreground, synchronously. */ |
89113898 PA |
1214 | if (!async_exec && target_can_async_p ()) |
1215 | { | |
1777feb0 | 1216 | /* Simulate synchronous execution. */ |
89113898 PA |
1217 | async_disable_stdin (); |
1218 | } | |
1219 | ||
c906108c | 1220 | clear_proceed_status (); |
a493e3e2 | 1221 | proceed (addr, GDB_SIGNAL_0, 0); |
c906108c | 1222 | } |
c906108c | 1223 | \f |
c5aa993b | 1224 | |
1777feb0 | 1225 | /* Go to line or address in current procedure. */ |
c906108c | 1226 | static void |
fba45db2 | 1227 | go_command (char *line_no, int from_tty) |
c906108c | 1228 | { |
c5aa993b | 1229 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1230 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1231 | else |
1232 | { | |
b83266a0 SS |
1233 | tbreak_command (line_no, from_tty); |
1234 | jump_command (line_no, from_tty); | |
c906108c SS |
1235 | } |
1236 | } | |
c906108c | 1237 | \f |
c5aa993b | 1238 | |
c906108c SS |
1239 | /* Continue program giving it specified signal. */ |
1240 | ||
1241 | static void | |
fba45db2 | 1242 | signal_command (char *signum_exp, int from_tty) |
c906108c | 1243 | { |
2ea28649 | 1244 | enum gdb_signal oursig; |
32c1e744 | 1245 | int async_exec = 0; |
c906108c SS |
1246 | |
1247 | dont_repeat (); /* Too dangerous. */ | |
1248 | ERROR_NO_INFERIOR; | |
573cda03 | 1249 | ensure_not_tfind_mode (); |
d729566a | 1250 | ensure_valid_thread (); |
94cc34af | 1251 | ensure_not_running (); |
c906108c | 1252 | |
32c1e744 VP |
1253 | /* Find out whether we must run in the background. */ |
1254 | if (signum_exp != NULL) | |
1255 | async_exec = strip_bg_char (&signum_exp); | |
1256 | ||
1257 | /* If we must run in the background, but the target can't do it, | |
1258 | error out. */ | |
1259 | if (async_exec && !target_can_async_p ()) | |
1260 | error (_("Asynchronous execution not supported on this target.")); | |
1261 | ||
1262 | /* If we are not asked to run in the bg, then prepare to run in the | |
1263 | foreground, synchronously. */ | |
1264 | if (!async_exec && target_can_async_p ()) | |
1265 | { | |
1266 | /* Simulate synchronous execution. */ | |
1267 | async_disable_stdin (); | |
1268 | } | |
1269 | ||
c906108c | 1270 | if (!signum_exp) |
e2e0b3e5 | 1271 | error_no_arg (_("signal number")); |
c906108c SS |
1272 | |
1273 | /* It would be even slicker to make signal names be valid expressions, | |
1274 | (the type could be "enum $signal" or some such), then the user could | |
1275 | assign them to convenience variables. */ | |
2ea28649 | 1276 | oursig = gdb_signal_from_name (signum_exp); |
c906108c | 1277 | |
a493e3e2 | 1278 | if (oursig == GDB_SIGNAL_UNKNOWN) |
c906108c SS |
1279 | { |
1280 | /* No, try numeric. */ | |
bb518678 | 1281 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1282 | |
1283 | if (num == 0) | |
a493e3e2 | 1284 | oursig = GDB_SIGNAL_0; |
c906108c | 1285 | else |
2ea28649 | 1286 | oursig = gdb_signal_from_command (num); |
c906108c SS |
1287 | } |
1288 | ||
1289 | if (from_tty) | |
1290 | { | |
a493e3e2 | 1291 | if (oursig == GDB_SIGNAL_0) |
a3f17187 | 1292 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1293 | else |
a3f17187 | 1294 | printf_filtered (_("Continuing with signal %s.\n"), |
2ea28649 | 1295 | gdb_signal_to_name (oursig)); |
c906108c SS |
1296 | } |
1297 | ||
1298 | clear_proceed_status (); | |
a12cc160 | 1299 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1300 | } |
1301 | ||
fa4cd53f PA |
1302 | /* Continuation args to be passed to the "until" command |
1303 | continuation. */ | |
1304 | struct until_next_continuation_args | |
1305 | { | |
1306 | /* The thread that was current when the command was executed. */ | |
1307 | int thread; | |
1308 | }; | |
1309 | ||
186c406b TT |
1310 | /* A continuation callback for until_next_command. */ |
1311 | ||
1312 | static void | |
fa4cd53f | 1313 | until_next_continuation (void *arg, int err) |
186c406b | 1314 | { |
fa4cd53f | 1315 | struct until_next_continuation_args *a = arg; |
186c406b | 1316 | |
fa4cd53f | 1317 | delete_longjmp_breakpoint (a->thread); |
186c406b TT |
1318 | } |
1319 | ||
c906108c SS |
1320 | /* Proceed until we reach a different source line with pc greater than |
1321 | our current one or exit the function. We skip calls in both cases. | |
1322 | ||
1323 | Note that eventually this command should probably be changed so | |
1324 | that only source lines are printed out when we hit the breakpoint | |
1325 | we set. This may involve changes to wait_for_inferior and the | |
1326 | proceed status code. */ | |
1327 | ||
c906108c | 1328 | static void |
fba45db2 | 1329 | until_next_command (int from_tty) |
c906108c SS |
1330 | { |
1331 | struct frame_info *frame; | |
1332 | CORE_ADDR pc; | |
1333 | struct symbol *func; | |
1334 | struct symtab_and_line sal; | |
4e1c45ea | 1335 | struct thread_info *tp = inferior_thread (); |
186c406b TT |
1336 | int thread = tp->num; |
1337 | struct cleanup *old_chain; | |
c5aa993b | 1338 | |
c906108c | 1339 | clear_proceed_status (); |
edb3359d | 1340 | set_step_frame (); |
c906108c SS |
1341 | |
1342 | frame = get_current_frame (); | |
1343 | ||
1344 | /* Step until either exited from this function or greater | |
1345 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1346 | not). */ |
c906108c | 1347 | |
1c7819ef | 1348 | pc = get_frame_pc (frame); |
c906108c | 1349 | func = find_pc_function (pc); |
c5aa993b | 1350 | |
c906108c SS |
1351 | if (!func) |
1352 | { | |
1353 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1354 | |
c906108c | 1355 | if (msymbol == NULL) |
8a3fe4f8 | 1356 | error (_("Execution is not within a known function.")); |
c5aa993b | 1357 | |
16c381f0 JK |
1358 | tp->control.step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1359 | tp->control.step_range_end = pc; | |
c906108c SS |
1360 | } |
1361 | else | |
1362 | { | |
1363 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1364 | |
16c381f0 JK |
1365 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1366 | tp->control.step_range_end = sal.end; | |
c906108c | 1367 | } |
c5aa993b | 1368 | |
16c381f0 | 1369 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1370 | |
af679fd0 | 1371 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1372 | |
186c406b TT |
1373 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1374 | old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1375 | ||
a493e3e2 | 1376 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
186c406b TT |
1377 | |
1378 | if (target_can_async_p () && is_running (inferior_ptid)) | |
1379 | { | |
fa4cd53f PA |
1380 | struct until_next_continuation_args *cont_args; |
1381 | ||
186c406b | 1382 | discard_cleanups (old_chain); |
fa4cd53f PA |
1383 | cont_args = XNEW (struct until_next_continuation_args); |
1384 | cont_args->thread = inferior_thread ()->num; | |
1385 | ||
1386 | add_continuation (tp, until_next_continuation, cont_args, xfree); | |
186c406b TT |
1387 | } |
1388 | else | |
1389 | do_cleanups (old_chain); | |
c906108c SS |
1390 | } |
1391 | ||
c5aa993b | 1392 | static void |
fba45db2 | 1393 | until_command (char *arg, int from_tty) |
c906108c | 1394 | { |
43ff13b4 JM |
1395 | int async_exec = 0; |
1396 | ||
4247603b | 1397 | ERROR_NO_INFERIOR; |
573cda03 | 1398 | ensure_not_tfind_mode (); |
4247603b PA |
1399 | ensure_valid_thread (); |
1400 | ensure_not_running (); | |
573cda03 | 1401 | |
1777feb0 | 1402 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1403 | if (arg != NULL) |
1404 | async_exec = strip_bg_char (&arg); | |
1405 | ||
1406 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1407 | error out. */ |
362646f5 | 1408 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1409 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1410 | |
1411 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 1412 | foreground, synchronously. */ |
362646f5 | 1413 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1414 | { |
1777feb0 | 1415 | /* Simulate synchronous execution. */ |
6426a772 | 1416 | async_disable_stdin (); |
43ff13b4 JM |
1417 | } |
1418 | ||
c906108c | 1419 | if (arg) |
ae66c1fc | 1420 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1421 | else |
1422 | until_next_command (from_tty); | |
1423 | } | |
ae66c1fc EZ |
1424 | |
1425 | static void | |
1426 | advance_command (char *arg, int from_tty) | |
1427 | { | |
1428 | int async_exec = 0; | |
1429 | ||
4247603b | 1430 | ERROR_NO_INFERIOR; |
573cda03 | 1431 | ensure_not_tfind_mode (); |
4247603b PA |
1432 | ensure_valid_thread (); |
1433 | ensure_not_running (); | |
573cda03 | 1434 | |
ae66c1fc | 1435 | if (arg == NULL) |
e2e0b3e5 | 1436 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1437 | |
1438 | /* Find out whether we must run in the background. */ | |
1439 | if (arg != NULL) | |
1440 | async_exec = strip_bg_char (&arg); | |
1441 | ||
1442 | /* If we must run in the background, but the target can't do it, | |
1443 | error out. */ | |
362646f5 | 1444 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1445 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1446 | |
1447 | /* If we are not asked to run in the bg, then prepare to run in the | |
1448 | foreground, synchronously. */ | |
362646f5 | 1449 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1450 | { |
1451 | /* Simulate synchronous execution. */ | |
1452 | async_disable_stdin (); | |
1453 | } | |
1454 | ||
1455 | until_break_command (arg, from_tty, 1); | |
1456 | } | |
c906108c | 1457 | \f |
cc72b2a2 KP |
1458 | /* Return the value of the result of a function at the end of a 'finish' |
1459 | command/BP. */ | |
f941662f | 1460 | |
cc72b2a2 | 1461 | struct value * |
6a3a010b | 1462 | get_return_value (struct value *function, struct type *value_type) |
11cf8741 | 1463 | { |
cc72b2a2 KP |
1464 | struct regcache *stop_regs = stop_registers; |
1465 | struct gdbarch *gdbarch; | |
44e5158b | 1466 | struct value *value; |
79a45e25 | 1467 | struct ui_out *uiout = current_uiout; |
cc72b2a2 KP |
1468 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
1469 | ||
1470 | /* If stop_registers were not saved, use the current registers. */ | |
1471 | if (!stop_regs) | |
1472 | { | |
1473 | stop_regs = regcache_dup (get_current_regcache ()); | |
1474 | cleanup = make_cleanup_regcache_xfree (stop_regs); | |
1475 | } | |
1476 | ||
1477 | gdbarch = get_regcache_arch (stop_regs); | |
44e5158b | 1478 | |
181fc57c | 1479 | CHECK_TYPEDEF (value_type); |
44e5158b | 1480 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1481 | |
92ad9cd9 AC |
1482 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1483 | call, it's possible (with no help from the architecture vector) | |
1484 | to locate and return/print a "struct return" value. This is just | |
7a9dd1b2 | 1485 | a more complicated case of what is already being done in the |
92ad9cd9 AC |
1486 | inferior function call code. In fact, when inferior function |
1487 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1488 | |
6a3a010b | 1489 | switch (gdbarch_return_value (gdbarch, function, value_type, |
c055b101 | 1490 | NULL, NULL, NULL)) |
44e5158b | 1491 | { |
750eb019 AC |
1492 | case RETURN_VALUE_REGISTER_CONVENTION: |
1493 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1494 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1495 | value = allocate_value (value_type); |
6a3a010b | 1496 | gdbarch_return_value (gdbarch, function, value_type, stop_regs, |
990a07ab | 1497 | value_contents_raw (value), NULL); |
750eb019 AC |
1498 | break; |
1499 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1500 | value = NULL; | |
1501 | break; | |
1502 | default: | |
e2e0b3e5 | 1503 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1504 | } |
bb472c1e | 1505 | |
cc72b2a2 KP |
1506 | do_cleanups (cleanup); |
1507 | ||
1508 | return value; | |
1509 | } | |
1510 | ||
1511 | /* Print the result of a function at the end of a 'finish' command. */ | |
1512 | ||
1513 | static void | |
6a3a010b | 1514 | print_return_value (struct value *function, struct type *value_type) |
cc72b2a2 | 1515 | { |
6a3a010b | 1516 | struct value *value = get_return_value (function, value_type); |
cc72b2a2 KP |
1517 | struct ui_out *uiout = current_uiout; |
1518 | ||
31db7b6c MK |
1519 | if (value) |
1520 | { | |
79a45b7d | 1521 | struct value_print_options opts; |
f99d8bf4 PA |
1522 | struct ui_file *stb; |
1523 | struct cleanup *old_chain; | |
79a45b7d | 1524 | |
31db7b6c | 1525 | /* Print it. */ |
f99d8bf4 PA |
1526 | stb = mem_fileopen (); |
1527 | old_chain = make_cleanup_ui_file_delete (stb); | |
31db7b6c MK |
1528 | ui_out_text (uiout, "Value returned is "); |
1529 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1530 | record_latest_value (value)); | |
1531 | ui_out_text (uiout, " = "); | |
79a45b7d | 1532 | get_raw_print_options (&opts); |
f99d8bf4 | 1533 | value_print (value, stb, &opts); |
31db7b6c MK |
1534 | ui_out_field_stream (uiout, "return-value", stb); |
1535 | ui_out_text (uiout, "\n"); | |
1d751abe | 1536 | do_cleanups (old_chain); |
31db7b6c MK |
1537 | } |
1538 | else | |
1539 | { | |
1540 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1541 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1542 | ui_out_text (uiout, "."); | |
1543 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1544 | } |
11cf8741 JM |
1545 | } |
1546 | ||
43ff13b4 | 1547 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1548 | has stopped. In asynchronous mode, we wait for the target to stop |
1549 | in the call to poll or select in the event loop, so it is | |
1550 | impossible to do all the stuff as part of the finish_command | |
1551 | function itself. The only chance we have to complete this command | |
1552 | is in fetch_inferior_event, which is called by the event loop as | |
fa4cd53f | 1553 | soon as it detects that the target has stopped. */ |
f941662f | 1554 | |
bfec99b2 | 1555 | struct finish_command_continuation_args |
43ff13b4 | 1556 | { |
fa4cd53f PA |
1557 | /* The thread that as current when the command was executed. */ |
1558 | int thread; | |
43ff13b4 | 1559 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1560 | struct symbol *function; |
1561 | }; | |
c5aa993b | 1562 | |
bfec99b2 | 1563 | static void |
fa4cd53f | 1564 | finish_command_continuation (void *arg, int err) |
bfec99b2 PA |
1565 | { |
1566 | struct finish_command_continuation_args *a = arg; | |
347bddb7 | 1567 | |
fa4cd53f | 1568 | if (!err) |
43ff13b4 | 1569 | { |
fa4cd53f PA |
1570 | struct thread_info *tp = NULL; |
1571 | bpstat bs = NULL; | |
bfec99b2 | 1572 | |
fa4cd53f PA |
1573 | if (!ptid_equal (inferior_ptid, null_ptid) |
1574 | && target_has_execution | |
1575 | && is_stopped (inferior_ptid)) | |
1576 | { | |
1577 | tp = inferior_thread (); | |
1578 | bs = tp->control.stop_bpstat; | |
1579 | } | |
f5871ec0 | 1580 | |
fa4cd53f PA |
1581 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL |
1582 | && a->function != NULL) | |
40c549d6 | 1583 | { |
fa4cd53f PA |
1584 | struct type *value_type; |
1585 | ||
1586 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); | |
1587 | if (!value_type) | |
1588 | internal_error (__FILE__, __LINE__, | |
1589 | _("finish_command: function has no target type")); | |
40c549d6 | 1590 | |
fa4cd53f | 1591 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 | 1592 | { |
fa4cd53f | 1593 | volatile struct gdb_exception ex; |
6a3a010b | 1594 | struct value *func; |
fa4cd53f | 1595 | |
6a3a010b | 1596 | func = read_var_value (a->function, get_current_frame ()); |
fa4cd53f PA |
1597 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1598 | { | |
1599 | /* print_return_value can throw an exception in some | |
1600 | circumstances. We need to catch this so that we still | |
1601 | delete the breakpoint. */ | |
6a3a010b | 1602 | print_return_value (func, value_type); |
fa4cd53f PA |
1603 | } |
1604 | if (ex.reason < 0) | |
1605 | exception_print (gdb_stdout, ex); | |
40c549d6 | 1606 | } |
40c549d6 | 1607 | } |
fa4cd53f PA |
1608 | |
1609 | /* We suppress normal call of normal_stop observer and do it | |
1610 | here so that the *stopped notification includes the return | |
1611 | value. */ | |
1612 | if (bs != NULL && tp->control.proceed_to_finish) | |
1613 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
43ff13b4 | 1614 | } |
f941662f | 1615 | |
bfec99b2 | 1616 | delete_breakpoint (a->breakpoint); |
fa4cd53f | 1617 | delete_longjmp_breakpoint (a->thread); |
43ff13b4 JM |
1618 | } |
1619 | ||
604ead4a PA |
1620 | static void |
1621 | finish_command_continuation_free_arg (void *arg) | |
1622 | { | |
604ead4a PA |
1623 | xfree (arg); |
1624 | } | |
1625 | ||
b2175913 MS |
1626 | /* finish_backward -- helper function for finish_command. */ |
1627 | ||
1628 | static void | |
1629 | finish_backward (struct symbol *function) | |
1630 | { | |
1631 | struct symtab_and_line sal; | |
1632 | struct thread_info *tp = inferior_thread (); | |
1c7819ef | 1633 | CORE_ADDR pc; |
b2175913 | 1634 | CORE_ADDR func_addr; |
b2175913 | 1635 | |
1c7819ef PA |
1636 | pc = get_frame_pc (get_current_frame ()); |
1637 | ||
1638 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1639 | internal_error (__FILE__, __LINE__, |
1640 | _("Finish: couldn't find function.")); | |
1641 | ||
1642 | sal = find_pc_line (func_addr, 0); | |
1643 | ||
9da8c2a0 | 1644 | tp->control.proceed_to_finish = 1; |
b2175913 MS |
1645 | /* Special case: if we're sitting at the function entry point, |
1646 | then all we need to do is take a reverse singlestep. We | |
1647 | don't need to set a breakpoint, and indeed it would do us | |
1648 | no good to do so. | |
1649 | ||
1650 | Note that this can only happen at frame #0, since there's | |
1651 | no way that a function up the stack can have a return address | |
1652 | that's equal to its entry point. */ | |
1653 | ||
1c7819ef | 1654 | if (sal.pc != pc) |
b2175913 | 1655 | { |
a6d9a66e UW |
1656 | struct frame_info *frame = get_selected_frame (NULL); |
1657 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
9da8c2a0 PA |
1658 | struct symtab_and_line sr_sal; |
1659 | ||
1660 | /* Set a step-resume at the function's entry point. Once that's | |
1661 | hit, we'll do one more step backwards. */ | |
1662 | init_sal (&sr_sal); | |
1663 | sr_sal.pc = sal.pc; | |
1664 | sr_sal.pspace = get_frame_program_space (frame); | |
1665 | insert_step_resume_breakpoint_at_sal (gdbarch, | |
1666 | sr_sal, null_frame_id); | |
a6d9a66e | 1667 | |
a493e3e2 | 1668 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1669 | } |
1670 | else | |
b2175913 | 1671 | { |
9da8c2a0 PA |
1672 | /* We're almost there -- we just need to back up by one more |
1673 | single-step. */ | |
16c381f0 | 1674 | tp->control.step_range_start = tp->control.step_range_end = 1; |
a493e3e2 | 1675 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
b2175913 | 1676 | } |
b2175913 MS |
1677 | } |
1678 | ||
1679 | /* finish_forward -- helper function for finish_command. */ | |
1680 | ||
1681 | static void | |
1682 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1683 | { | |
def166f6 | 1684 | struct frame_id frame_id = get_frame_id (frame); |
a6d9a66e | 1685 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1686 | struct symtab_and_line sal; |
1687 | struct thread_info *tp = inferior_thread (); | |
1688 | struct breakpoint *breakpoint; | |
1689 | struct cleanup *old_chain; | |
1690 | struct finish_command_continuation_args *cargs; | |
186c406b | 1691 | int thread = tp->num; |
b2175913 MS |
1692 | |
1693 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1694 | sal.pc = get_frame_pc (frame); | |
1695 | ||
a6d9a66e UW |
1696 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1697 | get_stack_frame_id (frame), | |
b2175913 MS |
1698 | bp_finish); |
1699 | ||
c70a6932 JK |
1700 | /* set_momentary_breakpoint invalidates FRAME. */ |
1701 | frame = NULL; | |
1702 | ||
b2175913 MS |
1703 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
1704 | ||
def166f6 | 1705 | set_longjmp_breakpoint (tp, frame_id); |
186c406b TT |
1706 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
1707 | ||
16c381f0 JK |
1708 | /* We want stop_registers, please... */ |
1709 | tp->control.proceed_to_finish = 1; | |
b2175913 MS |
1710 | cargs = xmalloc (sizeof (*cargs)); |
1711 | ||
fa4cd53f | 1712 | cargs->thread = thread; |
b2175913 MS |
1713 | cargs->breakpoint = breakpoint; |
1714 | cargs->function = function; | |
1715 | add_continuation (tp, finish_command_continuation, cargs, | |
1716 | finish_command_continuation_free_arg); | |
a493e3e2 | 1717 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1718 | |
1719 | discard_cleanups (old_chain); | |
1720 | if (!target_can_async_p ()) | |
fa4cd53f | 1721 | do_all_continuations (0); |
b2175913 MS |
1722 | } |
1723 | ||
f941662f MK |
1724 | /* "finish": Set a temporary breakpoint at the place the selected |
1725 | frame will return to, then continue. */ | |
c906108c SS |
1726 | |
1727 | static void | |
fba45db2 | 1728 | finish_command (char *arg, int from_tty) |
c906108c | 1729 | { |
52f0bd74 AC |
1730 | struct frame_info *frame; |
1731 | struct symbol *function; | |
43ff13b4 JM |
1732 | |
1733 | int async_exec = 0; | |
1734 | ||
4247603b | 1735 | ERROR_NO_INFERIOR; |
573cda03 | 1736 | ensure_not_tfind_mode (); |
4247603b PA |
1737 | ensure_valid_thread (); |
1738 | ensure_not_running (); | |
573cda03 | 1739 | |
f941662f | 1740 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1741 | if (arg != NULL) |
1742 | async_exec = strip_bg_char (&arg); | |
1743 | ||
1744 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1745 | error out. */ |
362646f5 | 1746 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1747 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1748 | |
1749 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1750 | foreground, synchronously. */ |
362646f5 | 1751 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1752 | { |
f941662f | 1753 | /* Simulate synchronous execution. */ |
6426a772 | 1754 | async_disable_stdin (); |
43ff13b4 | 1755 | } |
c906108c SS |
1756 | |
1757 | if (arg) | |
8a3fe4f8 | 1758 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1759 | |
206415a3 | 1760 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1761 | if (frame == 0) |
8a3fe4f8 | 1762 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1763 | |
1764 | clear_proceed_status (); | |
1765 | ||
edb3359d DJ |
1766 | /* Finishing from an inline frame is completely different. We don't |
1767 | try to show the "return value" - no way to locate it. So we do | |
1768 | not need a completion. */ | |
1769 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1770 | == INLINE_FRAME) | |
1771 | { | |
1772 | /* Claim we are stepping in the calling frame. An empty step | |
1773 | range means that we will stop once we aren't in a function | |
1774 | called by that frame. We don't use the magic "1" value for | |
1775 | step_range_end, because then infrun will think this is nexti, | |
1776 | and not step over the rest of this inlined function call. */ | |
1777 | struct thread_info *tp = inferior_thread (); | |
1778 | struct symtab_and_line empty_sal; | |
abbb1732 | 1779 | |
edb3359d DJ |
1780 | init_sal (&empty_sal); |
1781 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1782 | tp->control.step_range_start = get_frame_pc (frame); |
1783 | tp->control.step_range_end = tp->control.step_range_start; | |
1784 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1785 | |
1786 | /* Print info on the selected frame, including level number but not | |
1787 | source. */ | |
1788 | if (from_tty) | |
1789 | { | |
1790 | printf_filtered (_("Run till exit from ")); | |
1791 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); | |
1792 | } | |
1793 | ||
a493e3e2 | 1794 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
edb3359d DJ |
1795 | return; |
1796 | } | |
1797 | ||
1ab3b62c JK |
1798 | /* Ignore TAILCALL_FRAME type frames, they were executed already before |
1799 | entering THISFRAME. */ | |
1800 | while (get_frame_type (frame) == TAILCALL_FRAME) | |
1801 | frame = get_prev_frame (frame); | |
1802 | ||
c906108c SS |
1803 | /* Find the function we will return from. */ |
1804 | ||
206415a3 | 1805 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1806 | |
f941662f MK |
1807 | /* Print info on the selected frame, including level number but not |
1808 | source. */ | |
c906108c SS |
1809 | if (from_tty) |
1810 | { | |
b2175913 MS |
1811 | if (execution_direction == EXEC_REVERSE) |
1812 | printf_filtered (_("Run back to call of ")); | |
1813 | else | |
1814 | printf_filtered (_("Run till exit from ")); | |
1815 | ||
b04f3ab4 | 1816 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1817 | } |
1818 | ||
b2175913 MS |
1819 | if (execution_direction == EXEC_REVERSE) |
1820 | finish_backward (function); | |
1821 | else | |
1822 | finish_forward (function, frame); | |
c906108c SS |
1823 | } |
1824 | \f | |
f941662f | 1825 | |
c906108c | 1826 | static void |
fba45db2 | 1827 | program_info (char *args, int from_tty) |
c906108c | 1828 | { |
347bddb7 PA |
1829 | bpstat bs; |
1830 | int num, stat; | |
1831 | struct thread_info *tp; | |
1832 | ptid_t ptid; | |
c5aa993b | 1833 | |
c906108c SS |
1834 | if (!target_has_execution) |
1835 | { | |
a3f17187 | 1836 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1837 | return; |
1838 | } | |
1839 | ||
347bddb7 PA |
1840 | if (non_stop) |
1841 | ptid = inferior_ptid; | |
1842 | else | |
1843 | { | |
1844 | struct target_waitstatus ws; | |
abbb1732 | 1845 | |
347bddb7 PA |
1846 | get_last_target_status (&ptid, &ws); |
1847 | } | |
1848 | ||
1849 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1850 | error (_("Invalid selected thread.")); | |
1851 | else if (is_running (ptid)) | |
1852 | error (_("Selected thread is running.")); | |
1853 | ||
e09875d4 | 1854 | tp = find_thread_ptid (ptid); |
16c381f0 | 1855 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1856 | stat = bpstat_num (&bs, &num); |
1857 | ||
c906108c | 1858 | target_files_info (); |
5af949e3 | 1859 | printf_filtered (_("Program stopped at %s.\n"), |
f5656ead | 1860 | paddress (target_gdbarch (), stop_pc)); |
16c381f0 | 1861 | if (tp->control.stop_step) |
a3f17187 | 1862 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1863 | else if (stat != 0) |
c906108c SS |
1864 | { |
1865 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1866 | isn't as strange as it seems. */ |
8671a17b | 1867 | while (stat != 0) |
c906108c | 1868 | { |
8671a17b | 1869 | if (stat < 0) |
c906108c | 1870 | { |
3e43a32a MS |
1871 | printf_filtered (_("It stopped at a breakpoint " |
1872 | "that has since been deleted.\n")); | |
c906108c SS |
1873 | } |
1874 | else | |
a3f17187 | 1875 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1876 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1877 | } |
1878 | } | |
a493e3e2 | 1879 | else if (tp->suspend.stop_signal != GDB_SIGNAL_0) |
c906108c | 1880 | { |
a3f17187 | 1881 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2ea28649 PA |
1882 | gdb_signal_to_name (tp->suspend.stop_signal), |
1883 | gdb_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1884 | } |
1885 | ||
1886 | if (!from_tty) | |
1887 | { | |
3e43a32a MS |
1888 | printf_filtered (_("Type \"info stack\" or \"info " |
1889 | "registers\" for more information.\n")); | |
c906108c SS |
1890 | } |
1891 | } | |
1892 | \f | |
1893 | static void | |
fba45db2 | 1894 | environment_info (char *var, int from_tty) |
c906108c SS |
1895 | { |
1896 | if (var) | |
1897 | { | |
3f81c18a | 1898 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1899 | |
c906108c SS |
1900 | if (val) |
1901 | { | |
1902 | puts_filtered (var); | |
1903 | puts_filtered (" = "); | |
1904 | puts_filtered (val); | |
1905 | puts_filtered ("\n"); | |
1906 | } | |
1907 | else | |
1908 | { | |
1909 | puts_filtered ("Environment variable \""); | |
1910 | puts_filtered (var); | |
1911 | puts_filtered ("\" not defined.\n"); | |
1912 | } | |
1913 | } | |
1914 | else | |
1915 | { | |
3f81c18a | 1916 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1917 | |
c906108c SS |
1918 | while (*vector) |
1919 | { | |
1920 | puts_filtered (*vector++); | |
1921 | puts_filtered ("\n"); | |
1922 | } | |
1923 | } | |
1924 | } | |
1925 | ||
1926 | static void | |
fba45db2 | 1927 | set_environment_command (char *arg, int from_tty) |
c906108c | 1928 | { |
52f0bd74 | 1929 | char *p, *val, *var; |
c906108c SS |
1930 | int nullset = 0; |
1931 | ||
1932 | if (arg == 0) | |
e2e0b3e5 | 1933 | error_no_arg (_("environment variable and value")); |
c906108c | 1934 | |
1777feb0 | 1935 | /* Find seperation between variable name and value. */ |
c906108c SS |
1936 | p = (char *) strchr (arg, '='); |
1937 | val = (char *) strchr (arg, ' '); | |
1938 | ||
1939 | if (p != 0 && val != 0) | |
1940 | { | |
1941 | /* We have both a space and an equals. If the space is before the | |
c5aa993b | 1942 | equals, walk forward over the spaces til we see a nonspace |
1777feb0 | 1943 | (possibly the equals). */ |
c906108c SS |
1944 | if (p > val) |
1945 | while (*val == ' ') | |
1946 | val++; | |
1947 | ||
1948 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1949 | take the char following the spaces. */ |
c906108c SS |
1950 | if (p > val) |
1951 | p = val - 1; | |
1952 | } | |
1953 | else if (val != 0 && p == 0) | |
1954 | p = val; | |
1955 | ||
1956 | if (p == arg) | |
e2e0b3e5 | 1957 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1958 | |
1959 | if (p == 0 || p[1] == 0) | |
1960 | { | |
1961 | nullset = 1; | |
1962 | if (p == 0) | |
1777feb0 | 1963 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
1964 | } |
1965 | else | |
1966 | { | |
1777feb0 | 1967 | /* Not setting variable value to null. */ |
c906108c SS |
1968 | val = p + 1; |
1969 | while (*val == ' ' || *val == '\t') | |
1970 | val++; | |
1971 | } | |
1972 | ||
c5aa993b JM |
1973 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1974 | p--; | |
c906108c SS |
1975 | |
1976 | var = savestring (arg, p - arg); | |
1977 | if (nullset) | |
1978 | { | |
3e43a32a MS |
1979 | printf_filtered (_("Setting environment variable " |
1980 | "\"%s\" to null value.\n"), | |
a3f17187 | 1981 | var); |
3f81c18a | 1982 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
1983 | } |
1984 | else | |
3f81c18a | 1985 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 1986 | xfree (var); |
c906108c SS |
1987 | } |
1988 | ||
1989 | static void | |
fba45db2 | 1990 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1991 | { |
1992 | if (var == 0) | |
1993 | { | |
1994 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1995 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1996 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 1997 | { |
3f81c18a VP |
1998 | free_environ (current_inferior ()->environment); |
1999 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
2000 | } |
2001 | } | |
2002 | else | |
3f81c18a | 2003 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
2004 | } |
2005 | ||
1777feb0 | 2006 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
2007 | |
2008 | static const char path_var_name[] = "PATH"; | |
2009 | ||
c906108c | 2010 | static void |
fba45db2 | 2011 | path_info (char *args, int from_tty) |
c906108c SS |
2012 | { |
2013 | puts_filtered ("Executable and object file path: "); | |
3e43a32a MS |
2014 | puts_filtered (get_in_environ (current_inferior ()->environment, |
2015 | path_var_name)); | |
c906108c SS |
2016 | puts_filtered ("\n"); |
2017 | } | |
2018 | ||
2019 | /* Add zero or more directories to the front of the execution path. */ | |
2020 | ||
2021 | static void | |
fba45db2 | 2022 | path_command (char *dirname, int from_tty) |
c906108c SS |
2023 | { |
2024 | char *exec_path; | |
2025 | char *env; | |
abbb1732 | 2026 | |
c906108c | 2027 | dont_repeat (); |
3f81c18a | 2028 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
1777feb0 | 2029 | /* Can be null if path is not set. */ |
c906108c SS |
2030 | if (!env) |
2031 | env = ""; | |
4fcf66da | 2032 | exec_path = xstrdup (env); |
c906108c | 2033 | mod_path (dirname, &exec_path); |
3f81c18a | 2034 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 2035 | xfree (exec_path); |
c906108c | 2036 | if (from_tty) |
c5aa993b | 2037 | path_info ((char *) NULL, from_tty); |
c906108c | 2038 | } |
c906108c | 2039 | \f |
c5aa993b | 2040 | |
1292279a PA |
2041 | /* Print out the register NAME with value VAL, to FILE, in the default |
2042 | fashion. */ | |
2043 | ||
2044 | static void | |
2045 | default_print_one_register_info (struct ui_file *file, | |
2046 | const char *name, | |
2047 | struct value *val) | |
2048 | { | |
2049 | struct type *regtype = value_type (val); | |
2050 | ||
2051 | fputs_filtered (name, file); | |
2052 | print_spaces_filtered (15 - strlen (name), file); | |
2053 | ||
2054 | if (!value_entirely_available (val)) | |
2055 | { | |
2056 | fprintf_filtered (file, "*value not available*\n"); | |
2057 | return; | |
2058 | } | |
2059 | ||
2060 | /* If virtual format is floating, print it that way, and in raw | |
2061 | hex. */ | |
2062 | if (TYPE_CODE (regtype) == TYPE_CODE_FLT | |
2063 | || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT) | |
2064 | { | |
2065 | int j; | |
2066 | struct value_print_options opts; | |
2067 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
2068 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (regtype)); | |
2069 | ||
2070 | get_user_print_options (&opts); | |
2071 | opts.deref_ref = 1; | |
2072 | ||
2073 | val_print (regtype, | |
2074 | value_contents_for_printing (val), | |
2075 | value_embedded_offset (val), 0, | |
2076 | file, 0, val, &opts, current_language); | |
2077 | ||
2078 | fprintf_filtered (file, "\t(raw 0x"); | |
2079 | for (j = 0; j < TYPE_LENGTH (regtype); j++) | |
2080 | { | |
2081 | int idx; | |
2082 | ||
2083 | if (byte_order == BFD_ENDIAN_BIG) | |
2084 | idx = j; | |
2085 | else | |
2086 | idx = TYPE_LENGTH (regtype) - 1 - j; | |
2087 | fprintf_filtered (file, "%02x", (unsigned char) valaddr[idx]); | |
2088 | } | |
2089 | fprintf_filtered (file, ")"); | |
2090 | } | |
2091 | else | |
2092 | { | |
2093 | struct value_print_options opts; | |
2094 | ||
2095 | /* Print the register in hex. */ | |
2096 | get_formatted_print_options (&opts, 'x'); | |
2097 | opts.deref_ref = 1; | |
2098 | val_print (regtype, | |
2099 | value_contents_for_printing (val), | |
2100 | value_embedded_offset (val), 0, | |
2101 | file, 0, val, &opts, current_language); | |
2102 | /* If not a vector register, print it also according to its | |
2103 | natural format. */ | |
2104 | if (TYPE_VECTOR (regtype) == 0) | |
2105 | { | |
2106 | get_user_print_options (&opts); | |
2107 | opts.deref_ref = 1; | |
2108 | fprintf_filtered (file, "\t"); | |
2109 | val_print (regtype, | |
2110 | value_contents_for_printing (val), | |
2111 | value_embedded_offset (val), 0, | |
2112 | file, 0, val, &opts, current_language); | |
2113 | } | |
2114 | } | |
2115 | ||
2116 | fprintf_filtered (file, "\n"); | |
2117 | } | |
2118 | ||
1777feb0 | 2119 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
2120 | registers (print_all == 1) or all non-float and non-vector |
2121 | registers (print_all == 0). | |
c906108c SS |
2122 | |
2123 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
2124 | register(s) one per line is good enough. If a different format is |
2125 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
2126 | regs), or there is an existing convention for showing all the | |
2127 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
2128 | provide that format. */ | |
c906108c | 2129 | |
666e11c5 | 2130 | void |
0ab7a791 AC |
2131 | default_print_registers_info (struct gdbarch *gdbarch, |
2132 | struct ui_file *file, | |
2133 | struct frame_info *frame, | |
2134 | int regnum, int print_all) | |
c906108c | 2135 | { |
0ab7a791 | 2136 | int i; |
a4bd449d UW |
2137 | const int numregs = gdbarch_num_regs (gdbarch) |
2138 | + gdbarch_num_pseudo_regs (gdbarch); | |
0ab7a791 | 2139 | |
c906108c SS |
2140 | for (i = 0; i < numregs; i++) |
2141 | { | |
29ec5263 PA |
2142 | struct type *regtype; |
2143 | struct value *val; | |
2144 | ||
4782dc19 AC |
2145 | /* Decide between printing all regs, non-float / vector regs, or |
2146 | specific reg. */ | |
c5aa993b JM |
2147 | if (regnum == -1) |
2148 | { | |
f9418c0f | 2149 | if (print_all) |
4782dc19 | 2150 | { |
f9418c0f | 2151 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 2152 | continue; |
f9418c0f AC |
2153 | } |
2154 | else | |
2155 | { | |
2156 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
2157 | continue; |
2158 | } | |
c5aa993b JM |
2159 | } |
2160 | else | |
2161 | { | |
2162 | if (i != regnum) | |
2163 | continue; | |
2164 | } | |
c906108c SS |
2165 | |
2166 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 2167 | processor, so don't display anything. */ |
a4bd449d UW |
2168 | if (gdbarch_register_name (gdbarch, i) == NULL |
2169 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
2170 | continue; |
2171 | ||
29ec5263 PA |
2172 | regtype = register_type (gdbarch, i); |
2173 | val = allocate_value (regtype); | |
2174 | ||
c906108c | 2175 | /* Get the data in raw format. */ |
ca9d61b9 | 2176 | if (! deprecated_frame_register_read (frame, i, value_contents_raw (val))) |
1292279a | 2177 | mark_value_bytes_unavailable (val, 0, TYPE_LENGTH (value_type (val))); |
c906108c | 2178 | |
1292279a PA |
2179 | default_print_one_register_info (file, |
2180 | gdbarch_register_name (gdbarch, i), | |
2181 | val); | |
c906108c SS |
2182 | } |
2183 | } | |
c906108c | 2184 | |
c906108c | 2185 | void |
fba45db2 | 2186 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2187 | { |
206415a3 | 2188 | struct frame_info *frame; |
a4bd449d | 2189 | struct gdbarch *gdbarch; |
c906108c SS |
2190 | |
2191 | if (!target_has_registers) | |
8a3fe4f8 | 2192 | error (_("The program has no registers now.")); |
206415a3 | 2193 | frame = get_selected_frame (NULL); |
a4bd449d | 2194 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2195 | |
2196 | if (!addr_exp) | |
2197 | { | |
a4bd449d | 2198 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2199 | frame, -1, fpregs); |
c906108c SS |
2200 | return; |
2201 | } | |
2202 | ||
f9418c0f | 2203 | while (*addr_exp != '\0') |
c5aa993b | 2204 | { |
f9418c0f AC |
2205 | char *start; |
2206 | const char *end; | |
c906108c | 2207 | |
f9418c0f AC |
2208 | /* Keep skipping leading white space. */ |
2209 | if (isspace ((*addr_exp))) | |
2210 | { | |
2211 | addr_exp++; | |
2212 | continue; | |
2213 | } | |
c906108c | 2214 | |
f9418c0f AC |
2215 | /* Discard any leading ``$''. Check that there is something |
2216 | resembling a register following it. */ | |
2217 | if (addr_exp[0] == '$') | |
2218 | addr_exp++; | |
2219 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2220 | error (_("Missing register name")); |
c906108c | 2221 | |
f9418c0f AC |
2222 | /* Find the start/end of this register name/num/group. */ |
2223 | start = addr_exp; | |
2224 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2225 | addr_exp++; | |
2226 | end = addr_exp; | |
ad842144 | 2227 | |
f9418c0f AC |
2228 | /* Figure out what we've found and display it. */ |
2229 | ||
2230 | /* A register name? */ | |
2231 | { | |
029a67e4 | 2232 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2233 | |
f9418c0f AC |
2234 | if (regnum >= 0) |
2235 | { | |
ad842144 MR |
2236 | /* User registers lie completely outside of the range of |
2237 | normal registers. Catch them early so that the target | |
2238 | never sees them. */ | |
2239 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2240 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2241 | { | |
1292279a PA |
2242 | struct value *regval = value_of_user_reg (regnum, frame); |
2243 | const char *regname = user_reg_map_regnum_to_name (gdbarch, | |
2244 | regnum); | |
2245 | ||
2246 | /* Print in the same fashion | |
2247 | gdbarch_print_registers_info's default | |
2248 | implementation prints. */ | |
2249 | default_print_one_register_info (gdb_stdout, | |
2250 | regname, | |
2251 | regval); | |
ad842144 MR |
2252 | } |
2253 | else | |
2254 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2255 | frame, regnum, fpregs); | |
f9418c0f AC |
2256 | continue; |
2257 | } | |
2258 | } | |
ad842144 | 2259 | |
f9418c0f AC |
2260 | /* A register group? */ |
2261 | { | |
6c7d17ba | 2262 | struct reggroup *group; |
abbb1732 | 2263 | |
a4bd449d | 2264 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2265 | group != NULL; |
a4bd449d | 2266 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2267 | { |
2268 | /* Don't bother with a length check. Should the user | |
2269 | enter a short register group name, go with the first | |
2270 | group that matches. */ | |
6c7d17ba | 2271 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2272 | break; |
2273 | } | |
6c7d17ba | 2274 | if (group != NULL) |
f9418c0f AC |
2275 | { |
2276 | int regnum; | |
abbb1732 | 2277 | |
f57d151a | 2278 | for (regnum = 0; |
a4bd449d UW |
2279 | regnum < gdbarch_num_regs (gdbarch) |
2280 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2281 | regnum++) |
f9418c0f | 2282 | { |
a4bd449d UW |
2283 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2284 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2285 | gdb_stdout, frame, |
f9418c0f AC |
2286 | regnum, fpregs); |
2287 | } | |
2288 | continue; | |
2289 | } | |
2290 | } | |
c906108c | 2291 | |
f9418c0f | 2292 | /* Nothing matched. */ |
8a3fe4f8 | 2293 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2294 | } |
c906108c SS |
2295 | } |
2296 | ||
2297 | void | |
fba45db2 | 2298 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2299 | { |
2300 | registers_info (addr_exp, 1); | |
2301 | } | |
2302 | ||
a58dd373 | 2303 | static void |
fba45db2 | 2304 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2305 | { |
2306 | registers_info (addr_exp, 0); | |
2307 | } | |
e76f1f2e AC |
2308 | |
2309 | static void | |
d80b854b | 2310 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2311 | struct frame_info *frame, const char *args) |
2312 | { | |
d80b854b UW |
2313 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2314 | ||
e76f1f2e AC |
2315 | if (gdbarch_print_vector_info_p (gdbarch)) |
2316 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2317 | else | |
2318 | { | |
2319 | int regnum; | |
2320 | int printed_something = 0; | |
ab4327e0 | 2321 | |
f57d151a | 2322 | for (regnum = 0; |
a4bd449d UW |
2323 | regnum < gdbarch_num_regs (gdbarch) |
2324 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2325 | regnum++) |
e76f1f2e | 2326 | { |
f9418c0f | 2327 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2328 | { |
2329 | printed_something = 1; | |
e76f1f2e | 2330 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2331 | } |
2332 | } | |
2333 | if (!printed_something) | |
2334 | fprintf_filtered (file, "No vector information\n"); | |
2335 | } | |
2336 | } | |
2337 | ||
2338 | static void | |
2339 | vector_info (char *args, int from_tty) | |
2340 | { | |
206415a3 DJ |
2341 | if (!target_has_registers) |
2342 | error (_("The program has no registers now.")); | |
2343 | ||
d80b854b | 2344 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2345 | } |
c906108c | 2346 | \f |
5fd62852 PA |
2347 | /* Kill the inferior process. Make us have no inferior. */ |
2348 | ||
2349 | static void | |
2350 | kill_command (char *arg, int from_tty) | |
2351 | { | |
2352 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2353 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2354 | some targets don't have processes! */ |
5fd62852 PA |
2355 | |
2356 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2357 | error (_("The program is not being run.")); | |
2358 | if (!query (_("Kill the program being debugged? "))) | |
2359 | error (_("Not confirmed.")); | |
2360 | target_kill (); | |
2361 | ||
c35b1492 PA |
2362 | /* If we still have other inferiors to debug, then don't mess with |
2363 | with their threads. */ | |
2364 | if (!have_inferiors ()) | |
5fd62852 | 2365 | { |
1777feb0 | 2366 | init_thread_list (); /* Destroy thread info. */ |
5fd62852 PA |
2367 | |
2368 | /* Killing off the inferior can leave us with a core file. If | |
2369 | so, print the state we are left in. */ | |
2370 | if (target_has_stack) | |
2371 | { | |
2372 | printf_filtered (_("In %s,\n"), target_longname); | |
2373 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
2374 | } | |
2375 | } | |
2376 | bfd_cache_close_all (); | |
2377 | } | |
c5aa993b | 2378 | |
74531fed PA |
2379 | /* Used in `attach&' command. ARG is a point to an integer |
2380 | representing a process id. Proceed threads of this process iff | |
2381 | they stopped due to debugger request, and when they did, they | |
a493e3e2 | 2382 | reported a clean stop (GDB_SIGNAL_0). Do not proceed threads |
74531fed PA |
2383 | that have been explicitly been told to stop. */ |
2384 | ||
2385 | static int | |
2386 | proceed_after_attach_callback (struct thread_info *thread, | |
2387 | void *arg) | |
2388 | { | |
2389 | int pid = * (int *) arg; | |
2390 | ||
2391 | if (ptid_get_pid (thread->ptid) == pid | |
2392 | && !is_exited (thread->ptid) | |
2393 | && !is_executing (thread->ptid) | |
2394 | && !thread->stop_requested | |
a493e3e2 | 2395 | && thread->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed PA |
2396 | { |
2397 | switch_to_thread (thread->ptid); | |
2398 | clear_proceed_status (); | |
a493e3e2 | 2399 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2400 | } |
2401 | ||
2402 | return 0; | |
2403 | } | |
2404 | ||
2405 | static void | |
2406 | proceed_after_attach (int pid) | |
2407 | { | |
2408 | /* Don't error out if the current thread is running, because | |
2409 | there may be other stopped threads. */ | |
2410 | struct cleanup *old_chain; | |
2411 | ||
2412 | /* Backup current thread and selected frame. */ | |
2413 | old_chain = make_cleanup_restore_current_thread (); | |
2414 | ||
2415 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2416 | ||
2417 | /* Restore selected ptid. */ | |
2418 | do_cleanups (old_chain); | |
2419 | } | |
2420 | ||
c906108c SS |
2421 | /* |
2422 | * TODO: | |
2423 | * Should save/restore the tty state since it might be that the | |
2424 | * program to be debugged was started on this tty and it wants | |
2425 | * the tty in some state other than what we want. If it's running | |
2426 | * on another terminal or without a terminal, then saving and | |
2427 | * restoring the tty state is a harmless no-op. | |
2428 | * This only needs to be done if we are attaching to a process. | |
2429 | */ | |
2430 | ||
1777feb0 | 2431 | /* attach_command -- |
c906108c SS |
2432 | takes a program started up outside of gdb and ``attaches'' to it. |
2433 | This stops it cold in its tracks and allows us to start debugging it. | |
2434 | and wait for the trace-trap that results from attaching. */ | |
2435 | ||
9356cf8d PA |
2436 | static void |
2437 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2438 | { | |
2439 | char *exec_file; | |
2440 | char *full_exec_path = NULL; | |
d6b48e9c | 2441 | struct inferior *inferior; |
9356cf8d | 2442 | |
d6b48e9c | 2443 | inferior = current_inferior (); |
16c381f0 | 2444 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2445 | |
2446 | /* If no exec file is yet known, try to determine it from the | |
2447 | process itself. */ | |
2448 | exec_file = (char *) get_exec_file (0); | |
2449 | if (!exec_file) | |
2450 | { | |
2451 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2452 | if (exec_file) | |
2453 | { | |
2454 | /* It's possible we don't have a full path, but rather just a | |
2455 | filename. Some targets, such as HP-UX, don't provide the | |
2456 | full path, sigh. | |
2457 | ||
2458 | Attempt to qualify the filename against the source path. | |
2459 | (If that fails, we'll just fall back on the original | |
1777feb0 MS |
2460 | filename. Not much more we can do...) */ |
2461 | ||
9356cf8d | 2462 | if (!source_full_path_of (exec_file, &full_exec_path)) |
1b36a34b | 2463 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2464 | |
2465 | exec_file_attach (full_exec_path, from_tty); | |
2466 | symbol_file_add_main (full_exec_path, from_tty); | |
2467 | } | |
2468 | } | |
2469 | else | |
2470 | { | |
2471 | reopen_exec_file (); | |
2472 | reread_symbols (); | |
2473 | } | |
2474 | ||
2475 | /* Take any necessary post-attaching actions for this platform. */ | |
2476 | target_post_attach (PIDGET (inferior_ptid)); | |
2477 | ||
2478 | post_create_inferior (¤t_target, from_tty); | |
2479 | ||
2480 | /* Install inferior's terminal modes. */ | |
2481 | target_terminal_inferior (); | |
2482 | ||
2483 | if (async_exec) | |
74531fed PA |
2484 | { |
2485 | /* The user requested an `attach&', so be sure to leave threads | |
2486 | that didn't get a signal running. */ | |
2487 | ||
2488 | /* Immediatelly resume all suspended threads of this inferior, | |
2489 | and this inferior only. This should have no effect on | |
2490 | already running threads. If a thread has been stopped with a | |
2491 | signal, leave it be. */ | |
2492 | if (non_stop) | |
2493 | proceed_after_attach (inferior->pid); | |
2494 | else | |
2495 | { | |
a493e3e2 | 2496 | if (inferior_thread ()->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed PA |
2497 | { |
2498 | clear_proceed_status (); | |
a493e3e2 | 2499 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2500 | } |
2501 | } | |
2502 | } | |
9356cf8d PA |
2503 | else |
2504 | { | |
74531fed PA |
2505 | /* The user requested a plain `attach', so be sure to leave |
2506 | the inferior stopped. */ | |
2507 | ||
9356cf8d PA |
2508 | if (target_can_async_p ()) |
2509 | async_enable_stdin (); | |
74531fed PA |
2510 | |
2511 | /* At least the current thread is already stopped. */ | |
2512 | ||
2513 | /* In all-stop, by definition, all threads have to be already | |
2514 | stopped at this point. In non-stop, however, although the | |
2515 | selected thread is stopped, others may still be executing. | |
2516 | Be sure to explicitly stop all threads of the process. This | |
2517 | should have no effect on already stopped threads. */ | |
2518 | if (non_stop) | |
2519 | target_stop (pid_to_ptid (inferior->pid)); | |
2520 | ||
2521 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2522 | normal_stop (); |
2523 | if (deprecated_attach_hook) | |
2524 | deprecated_attach_hook (); | |
2525 | } | |
2526 | } | |
2527 | ||
bfec99b2 | 2528 | struct attach_command_continuation_args |
9356cf8d PA |
2529 | { |
2530 | char *args; | |
2531 | int from_tty; | |
2532 | int async_exec; | |
bfec99b2 | 2533 | }; |
9356cf8d | 2534 | |
bfec99b2 | 2535 | static void |
fa4cd53f | 2536 | attach_command_continuation (void *args, int err) |
bfec99b2 PA |
2537 | { |
2538 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2539 | |
fa4cd53f PA |
2540 | if (err) |
2541 | return; | |
2542 | ||
bfec99b2 | 2543 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2544 | } |
2545 | ||
604ead4a PA |
2546 | static void |
2547 | attach_command_continuation_free_args (void *args) | |
2548 | { | |
2549 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2550 | |
604ead4a PA |
2551 | xfree (a->args); |
2552 | xfree (a); | |
2553 | } | |
2554 | ||
c906108c | 2555 | void |
fba45db2 | 2556 | attach_command (char *args, int from_tty) |
c906108c | 2557 | { |
9356cf8d | 2558 | int async_exec = 0; |
cb0362bb | 2559 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2560 | |
c5aa993b | 2561 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2562 | |
f5656ead | 2563 | if (gdbarch_has_global_solist (target_gdbarch ())) |
2567c7d9 PA |
2564 | /* Don't complain if all processes share the same symbol |
2565 | space. */ | |
8a305172 PA |
2566 | ; |
2567 | else if (target_has_execution) | |
c906108c | 2568 | { |
9e2f0ad4 | 2569 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2570 | target_kill (); |
2571 | else | |
8a3fe4f8 | 2572 | error (_("Not killed.")); |
c906108c SS |
2573 | } |
2574 | ||
fd79ecee DJ |
2575 | /* Clean up any leftovers from other runs. Some other things from |
2576 | this function should probably be moved into target_pre_inferior. */ | |
2577 | target_pre_inferior (from_tty); | |
2578 | ||
9908b566 VP |
2579 | if (non_stop && !target_supports_non_stop ()) |
2580 | error (_("Cannot attach to this target in non-stop mode")); | |
2581 | ||
9356cf8d PA |
2582 | if (args) |
2583 | { | |
2584 | async_exec = strip_bg_char (&args); | |
2585 | ||
2586 | /* If we get a request for running in the bg but the target | |
1777feb0 | 2587 | doesn't support it, error out. */ |
9356cf8d PA |
2588 | if (async_exec && !target_can_async_p ()) |
2589 | error (_("Asynchronous execution not supported on this target.")); | |
2590 | } | |
2591 | ||
2592 | /* If we don't get a request of running in the bg, then we need | |
2593 | to simulate synchronous (fg) execution. */ | |
2594 | if (!async_exec && target_can_async_p ()) | |
2595 | { | |
1777feb0 | 2596 | /* Simulate synchronous execution. */ |
9356cf8d | 2597 | async_disable_stdin (); |
cb0362bb | 2598 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2599 | } |
2600 | ||
c906108c SS |
2601 | target_attach (args, from_tty); |
2602 | ||
2603 | /* Set up the "saved terminal modes" of the inferior | |
2604 | based on what modes we are starting it with. */ | |
2605 | target_terminal_init (); | |
2606 | ||
c906108c SS |
2607 | /* Set up execution context to know that we should return from |
2608 | wait_for_inferior as soon as the target reports a stop. */ | |
2609 | init_wait_for_inferior (); | |
2610 | clear_proceed_status (); | |
c906108c | 2611 | |
74531fed PA |
2612 | if (non_stop) |
2613 | { | |
2614 | /* If we find that the current thread isn't stopped, explicitly | |
2615 | do so now, because we're going to install breakpoints and | |
2616 | poke at memory. */ | |
2617 | ||
2618 | if (async_exec) | |
2619 | /* The user requested an `attach&'; stop just one thread. */ | |
2620 | target_stop (inferior_ptid); | |
2621 | else | |
2622 | /* The user requested an `attach', so stop all threads of this | |
2623 | inferior. */ | |
2624 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2625 | } | |
2626 | ||
dc177b7a PA |
2627 | /* Some system don't generate traps when attaching to inferior. |
2628 | E.g. Mach 3 or GNU hurd. */ | |
2629 | if (!target_attach_no_wait) | |
c5aa993b | 2630 | { |
d6b48e9c PA |
2631 | struct inferior *inferior = current_inferior (); |
2632 | ||
1777feb0 | 2633 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2634 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2635 | need a way for handle_inferior_event to reset the stop_signal | |
2636 | variable after an attach, and this is what | |
2637 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2638 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2639 | |
dc177b7a PA |
2640 | if (target_can_async_p ()) |
2641 | { | |
2642 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2643 | struct attach_command_continuation_args *a; |
2644 | ||
2645 | a = xmalloc (sizeof (*a)); | |
2646 | a->args = xstrdup (args); | |
2647 | a->from_tty = from_tty; | |
2648 | a->async_exec = async_exec; | |
e0ba6746 PA |
2649 | add_inferior_continuation (attach_command_continuation, a, |
2650 | attach_command_continuation_free_args); | |
cb0362bb | 2651 | discard_cleanups (back_to); |
dc177b7a PA |
2652 | return; |
2653 | } | |
c906108c | 2654 | |
e4c8541f | 2655 | wait_for_inferior (); |
dc177b7a | 2656 | } |
6426a772 | 2657 | |
9356cf8d | 2658 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2659 | discard_cleanups (back_to); |
c906108c SS |
2660 | } |
2661 | ||
1941c569 PA |
2662 | /* We had just found out that the target was already attached to an |
2663 | inferior. PTID points at a thread of this new inferior, that is | |
2664 | the most likely to be stopped right now, but not necessarily so. | |
2665 | The new inferior is assumed to be already added to the inferior | |
2666 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2667 | this inferior running, except those we've explicitly seen reported | |
2668 | as stopped. */ | |
2669 | ||
2670 | void | |
2671 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2672 | { | |
2673 | struct cleanup* old_chain; | |
2674 | int async_exec; | |
2675 | ||
2676 | old_chain = make_cleanup (null_cleanup, NULL); | |
2677 | ||
2678 | /* If in non-stop, leave threads as running as they were. If | |
2679 | they're stopped for some reason other than us telling it to, the | |
a493e3e2 | 2680 | target reports a signal != GDB_SIGNAL_0. We don't try to |
1941c569 PA |
2681 | resume threads with such a stop signal. */ |
2682 | async_exec = non_stop; | |
2683 | ||
2684 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2685 | make_cleanup_restore_current_thread (); | |
2686 | ||
2687 | switch_to_thread (ptid); | |
2688 | ||
2689 | /* When we "notice" a new inferior we need to do all the things we | |
2690 | would normally do if we had just attached to it. */ | |
2691 | ||
2692 | if (is_executing (inferior_ptid)) | |
2693 | { | |
2694 | struct inferior *inferior = current_inferior (); | |
2695 | ||
2696 | /* We're going to install breakpoints, and poke at memory, | |
2697 | ensure that the inferior is stopped for a moment while we do | |
2698 | that. */ | |
2699 | target_stop (inferior_ptid); | |
2700 | ||
16c381f0 | 2701 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2702 | |
2703 | /* Wait for stop before proceeding. */ | |
2704 | if (target_can_async_p ()) | |
2705 | { | |
2706 | struct attach_command_continuation_args *a; | |
2707 | ||
2708 | a = xmalloc (sizeof (*a)); | |
2709 | a->args = xstrdup (""); | |
2710 | a->from_tty = from_tty; | |
2711 | a->async_exec = async_exec; | |
2712 | add_inferior_continuation (attach_command_continuation, a, | |
2713 | attach_command_continuation_free_args); | |
2714 | ||
2715 | do_cleanups (old_chain); | |
2716 | return; | |
2717 | } | |
2718 | else | |
e4c8541f | 2719 | wait_for_inferior (); |
1941c569 PA |
2720 | } |
2721 | ||
2722 | async_exec = leave_running; | |
2723 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2724 | ||
2725 | do_cleanups (old_chain); | |
2726 | } | |
2727 | ||
c906108c SS |
2728 | /* |
2729 | * detach_command -- | |
2730 | * takes a program previously attached to and detaches it. | |
2731 | * The program resumes execution and will no longer stop | |
2732 | * on signals, etc. We better not have left any breakpoints | |
2733 | * in the program or it'll die when it hits one. For this | |
2734 | * to work, it may be necessary for the process to have been | |
2735 | * previously attached. It *might* work if the program was | |
2736 | * started via the normal ptrace (PTRACE_TRACEME). | |
2737 | */ | |
2738 | ||
6418d433 | 2739 | void |
fba45db2 | 2740 | detach_command (char *args, int from_tty) |
c906108c | 2741 | { |
1f5d0fc9 | 2742 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2743 | |
2744 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2745 | error (_("The program is not being run.")); | |
2746 | ||
33da3f1c | 2747 | disconnect_tracing (from_tty); |
d5551862 | 2748 | |
c906108c | 2749 | target_detach (args, from_tty); |
50c71eaf PA |
2750 | |
2751 | /* If the solist is global across inferiors, don't clear it when we | |
2752 | detach from a single inferior. */ | |
f5656ead | 2753 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf | 2754 | no_shared_libraries (NULL, from_tty); |
8a305172 | 2755 | |
c35b1492 PA |
2756 | /* If we still have inferiors to debug, then don't mess with their |
2757 | threads. */ | |
2758 | if (!have_inferiors ()) | |
8a305172 PA |
2759 | init_thread_list (); |
2760 | ||
9a4105ab AC |
2761 | if (deprecated_detach_hook) |
2762 | deprecated_detach_hook (); | |
c906108c SS |
2763 | } |
2764 | ||
6ad8ae5c DJ |
2765 | /* Disconnect from the current target without resuming it (leaving it |
2766 | waiting for a debugger). | |
2767 | ||
2768 | We'd better not have left any breakpoints in the program or the | |
2769 | next debugger will get confused. Currently only supported for some | |
2770 | remote targets, since the normal attach mechanisms don't work on | |
2771 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2772 | ||
2773 | static void | |
2774 | disconnect_command (char *args, int from_tty) | |
2775 | { | |
1777feb0 | 2776 | dont_repeat (); /* Not for the faint of heart. */ |
d31647d2 | 2777 | disconnect_tracing (from_tty); |
6ad8ae5c | 2778 | target_disconnect (args, from_tty); |
e85a822c | 2779 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2780 | init_thread_list (); |
9a4105ab AC |
2781 | if (deprecated_detach_hook) |
2782 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2783 | } |
2784 | ||
77ebaa5a VP |
2785 | void |
2786 | interrupt_target_1 (int all_threads) | |
2787 | { | |
2788 | ptid_t ptid; | |
abbb1732 | 2789 | |
77ebaa5a VP |
2790 | if (all_threads) |
2791 | ptid = minus_one_ptid; | |
2792 | else | |
2793 | ptid = inferior_ptid; | |
2794 | target_stop (ptid); | |
252fbfc8 PA |
2795 | |
2796 | /* Tag the thread as having been explicitly requested to stop, so | |
2797 | other parts of gdb know not to resume this thread automatically, | |
2798 | if it was stopped due to an internal event. Limit this to | |
2799 | non-stop mode, as when debugging a multi-threaded application in | |
2800 | all-stop mode, we will only get one stop event --- it's undefined | |
2801 | which thread will report the event. */ | |
2802 | if (non_stop) | |
2803 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2804 | } |
2805 | ||
43ff13b4 | 2806 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2807 | the backgound. In all-stop, stop the whole process. In non-stop |
2808 | mode, stop the current thread only by default, or stop all threads | |
2809 | if the `-a' switch is used. */ | |
2810 | ||
2811 | /* interrupt [-a] */ | |
8b93c638 | 2812 | void |
fba45db2 | 2813 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2814 | { |
362646f5 | 2815 | if (target_can_async_p ()) |
43ff13b4 | 2816 | { |
8cae4b3f PA |
2817 | int all_threads = 0; |
2818 | ||
1777feb0 | 2819 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2820 | |
8cae4b3f PA |
2821 | if (args != NULL |
2822 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2823 | all_threads = 1; | |
2824 | ||
2825 | if (!non_stop && all_threads) | |
2826 | error (_("-a is meaningless in all-stop mode.")); | |
2827 | ||
77ebaa5a | 2828 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2829 | } |
2830 | } | |
2831 | ||
c906108c | 2832 | static void |
d80b854b | 2833 | print_float_info (struct ui_file *file, |
23e3a7ac | 2834 | struct frame_info *frame, const char *args) |
c906108c | 2835 | { |
d80b854b UW |
2836 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2837 | ||
23e3a7ac AC |
2838 | if (gdbarch_print_float_info_p (gdbarch)) |
2839 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2840 | else | |
2841 | { | |
23e3a7ac AC |
2842 | int regnum; |
2843 | int printed_something = 0; | |
ab4327e0 | 2844 | |
f57d151a | 2845 | for (regnum = 0; |
a4bd449d UW |
2846 | regnum < gdbarch_num_regs (gdbarch) |
2847 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2848 | regnum++) |
23e3a7ac | 2849 | { |
f9418c0f | 2850 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2851 | { |
2852 | printed_something = 1; | |
23e3a7ac | 2853 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2854 | } |
2855 | } | |
2856 | if (!printed_something) | |
3e43a32a MS |
2857 | fprintf_filtered (file, "No floating-point info " |
2858 | "available for this processor.\n"); | |
23e3a7ac AC |
2859 | } |
2860 | } | |
2861 | ||
2862 | static void | |
2863 | float_info (char *args, int from_tty) | |
2864 | { | |
206415a3 DJ |
2865 | if (!target_has_registers) |
2866 | error (_("The program has no registers now.")); | |
2867 | ||
d80b854b | 2868 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2869 | } |
2870 | \f | |
c906108c | 2871 | static void |
fba45db2 | 2872 | unset_command (char *args, int from_tty) |
c906108c | 2873 | { |
3e43a32a MS |
2874 | printf_filtered (_("\"unset\" must be followed by the " |
2875 | "name of an unset subcommand.\n")); | |
c906108c SS |
2876 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2877 | } | |
2878 | ||
145b16a9 UW |
2879 | /* Implement `info proc' family of commands. */ |
2880 | ||
2881 | static void | |
2882 | info_proc_cmd_1 (char *args, enum info_proc_what what, int from_tty) | |
2883 | { | |
3030c96e UW |
2884 | struct gdbarch *gdbarch = get_current_arch (); |
2885 | ||
2886 | if (gdbarch_info_proc_p (gdbarch)) | |
2887 | gdbarch_info_proc (gdbarch, args, what); | |
2888 | else | |
2889 | target_info_proc (args, what); | |
145b16a9 UW |
2890 | } |
2891 | ||
2892 | /* Implement `info proc' when given without any futher parameters. */ | |
2893 | ||
2894 | static void | |
2895 | info_proc_cmd (char *args, int from_tty) | |
2896 | { | |
2897 | info_proc_cmd_1 (args, IP_MINIMAL, from_tty); | |
2898 | } | |
2899 | ||
2900 | /* Implement `info proc mappings'. */ | |
2901 | ||
2902 | static void | |
2903 | info_proc_cmd_mappings (char *args, int from_tty) | |
2904 | { | |
2905 | info_proc_cmd_1 (args, IP_MAPPINGS, from_tty); | |
2906 | } | |
2907 | ||
2908 | /* Implement `info proc stat'. */ | |
2909 | ||
2910 | static void | |
2911 | info_proc_cmd_stat (char *args, int from_tty) | |
2912 | { | |
2913 | info_proc_cmd_1 (args, IP_STAT, from_tty); | |
2914 | } | |
2915 | ||
2916 | /* Implement `info proc status'. */ | |
2917 | ||
2918 | static void | |
2919 | info_proc_cmd_status (char *args, int from_tty) | |
2920 | { | |
2921 | info_proc_cmd_1 (args, IP_STATUS, from_tty); | |
2922 | } | |
2923 | ||
2924 | /* Implement `info proc cwd'. */ | |
2925 | ||
2926 | static void | |
2927 | info_proc_cmd_cwd (char *args, int from_tty) | |
2928 | { | |
2929 | info_proc_cmd_1 (args, IP_CWD, from_tty); | |
2930 | } | |
2931 | ||
2932 | /* Implement `info proc cmdline'. */ | |
2933 | ||
2934 | static void | |
2935 | info_proc_cmd_cmdline (char *args, int from_tty) | |
2936 | { | |
2937 | info_proc_cmd_1 (args, IP_CMDLINE, from_tty); | |
2938 | } | |
2939 | ||
2940 | /* Implement `info proc exe'. */ | |
2941 | ||
2942 | static void | |
2943 | info_proc_cmd_exe (char *args, int from_tty) | |
2944 | { | |
2945 | info_proc_cmd_1 (args, IP_EXE, from_tty); | |
2946 | } | |
2947 | ||
2948 | /* Implement `info proc all'. */ | |
2949 | ||
2950 | static void | |
2951 | info_proc_cmd_all (char *args, int from_tty) | |
2952 | { | |
2953 | info_proc_cmd_1 (args, IP_ALL, from_tty); | |
2954 | } | |
2955 | ||
c906108c | 2956 | void |
fba45db2 | 2957 | _initialize_infcmd (void) |
c906108c | 2958 | { |
145b16a9 | 2959 | static struct cmd_list_element *info_proc_cmdlist; |
3cb3b8df | 2960 | struct cmd_list_element *c = NULL; |
6ace3df1 | 2961 | char *cmd_name; |
3cb3b8df | 2962 | |
1777feb0 | 2963 | /* Add the filename of the terminal connected to inferior I/O. */ |
3cb3b8df | 2964 | add_setshow_filename_cmd ("inferior-tty", class_run, |
3f81c18a | 2965 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
2966 | Set terminal for future runs of program being debugged."), _("\ |
2967 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
2968 | Usage: set inferior-tty /dev/pts/1"), |
2969 | set_inferior_tty_command, | |
2970 | show_inferior_tty_command, | |
2971 | &setlist, &showlist); | |
3cb3b8df | 2972 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 2973 | |
6ace3df1 YQ |
2974 | cmd_name = "args"; |
2975 | add_setshow_string_noescape_cmd (cmd_name, class_run, | |
2976 | &inferior_args_scratch, _("\ | |
b4b4ac0b AC |
2977 | Set argument list to give program being debugged when it is started."), _("\ |
2978 | Show argument list to give program being debugged when it is started."), _("\ | |
2979 | Follow this command with any number of args, to be passed to the program."), | |
6ace3df1 YQ |
2980 | set_args_command, |
2981 | show_args_command, | |
2982 | &setlist, &showlist); | |
2983 | c = lookup_cmd (&cmd_name, setlist, "", -1, 1); | |
2984 | gdb_assert (c != NULL); | |
2985 | set_cmd_completer (c, filename_completer); | |
c906108c | 2986 | |
1a966eab AC |
2987 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2988 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2989 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2990 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2991 | environment to be given to the program."), &showlist); |
5ba2abeb | 2992 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2993 | |
2994 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2995 | _("Complement to certain \"set\" commands."), |
c906108c | 2996 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2997 | |
1a966eab AC |
2998 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2999 | Cancel environment variable VAR for the program.\n\ | |
3000 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 3001 | &unsetlist); |
5ba2abeb | 3002 | set_cmd_completer (c, noop_completer); |
c906108c | 3003 | |
1a966eab AC |
3004 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
3005 | Set environment variable value to give the program.\n\ | |
c906108c SS |
3006 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
3007 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 3008 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 3009 | &setlist); |
5ba2abeb | 3010 | set_cmd_completer (c, noop_completer); |
c5aa993b | 3011 | |
1bedd215 AC |
3012 | c = add_com ("path", class_files, path_command, _("\ |
3013 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
3014 | $cwd in the path means the current working directory.\n\ |
3015 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3016 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3017 | fully linked executable files and separately compiled object files as \ |
3018 | needed.")); | |
5ba2abeb | 3019 | set_cmd_completer (c, filename_completer); |
c906108c | 3020 | |
1a966eab AC |
3021 | c = add_cmd ("paths", no_class, path_info, _("\ |
3022 | Current search path for finding object files.\n\ | |
c906108c SS |
3023 | $cwd in the path means the current working directory.\n\ |
3024 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3025 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3026 | fully linked executable files and separately compiled object files as \ |
3027 | needed."), | |
c906108c | 3028 | &showlist); |
5ba2abeb | 3029 | set_cmd_completer (c, noop_completer); |
c906108c | 3030 | |
2277426b PA |
3031 | add_prefix_cmd ("kill", class_run, kill_command, |
3032 | _("Kill execution of program being debugged."), | |
3033 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 3034 | |
1bedd215 AC |
3035 | add_com ("attach", class_run, attach_command, _("\ |
3036 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
3037 | This command attaches to another target, of the same type as your last\n\ |
3038 | \"target\" command (\"info files\" will show your target stack).\n\ | |
3039 | The command may take as argument a process id or a device file.\n\ | |
3040 | For a process id, you must have permission to send the process a signal,\n\ | |
3041 | and it must have the same effective uid as the debugger.\n\ | |
3042 | When using \"attach\" with a process id, the debugger finds the\n\ | |
3043 | program running in the process, looking first in the current working\n\ | |
3044 | directory, or (if not found there) using the source file search path\n\ | |
3045 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 3046 | to specify the program, and to load its symbol table.")); |
c906108c | 3047 | |
f73adfeb | 3048 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 3049 | Detach a process or file previously attached.\n\ |
c906108c | 3050 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
3051 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
3052 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 3053 | |
1bedd215 AC |
3054 | add_com ("disconnect", class_run, disconnect_command, _("\ |
3055 | Disconnect from a target.\n\ | |
6ad8ae5c | 3056 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 3057 | all targets.")); |
6ad8ae5c | 3058 | |
de0bea00 | 3059 | c = add_com ("signal", class_run, signal_command, _("\ |
486c7739 MF |
3060 | Continue program with the specified signal.\n\ |
3061 | Usage: signal SIGNAL\n\ | |
2edda2ff | 3062 | The SIGNAL argument is processed the same as the handle command.\n\ |
486c7739 MF |
3063 | \n\ |
3064 | An argument of \"0\" means continue the program without sending it a signal.\n\ | |
3065 | This is useful in cases where the program stopped because of a signal,\n\ | |
3066 | and you want to resume the program while discarding the signal.")); | |
de0bea00 | 3067 | set_cmd_completer (c, signal_completer); |
c906108c | 3068 | |
1bedd215 AC |
3069 | add_com ("stepi", class_run, stepi_command, _("\ |
3070 | Step one instruction exactly.\n\ | |
486c7739 MF |
3071 | Usage: stepi [N]\n\ |
3072 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3073 | reason).")); |
c906108c SS |
3074 | add_com_alias ("si", "stepi", class_alias, 0); |
3075 | ||
1bedd215 AC |
3076 | add_com ("nexti", class_run, nexti_command, _("\ |
3077 | Step one instruction, but proceed through subroutine calls.\n\ | |
486c7739 MF |
3078 | Usage: nexti [N]\n\ |
3079 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3080 | reason).")); |
c906108c SS |
3081 | add_com_alias ("ni", "nexti", class_alias, 0); |
3082 | ||
1bedd215 AC |
3083 | add_com ("finish", class_run, finish_command, _("\ |
3084 | Execute until selected stack frame returns.\n\ | |
486c7739 | 3085 | Usage: finish\n\ |
1bedd215 | 3086 | Upon return, the value returned is printed and put in the value history.")); |
0e479716 | 3087 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 3088 | |
1bedd215 AC |
3089 | add_com ("next", class_run, next_command, _("\ |
3090 | Step program, proceeding through subroutine calls.\n\ | |
486c7739 MF |
3091 | Usage: next [N]\n\ |
3092 | Unlike \"step\", if the current source line calls a subroutine,\n\ | |
3093 | this command does not enter the subroutine, but instead steps over\n\ | |
dbf6a605 | 3094 | the call, in effect treating it as a single source line.")); |
c906108c SS |
3095 | add_com_alias ("n", "next", class_run, 1); |
3096 | if (xdb_commands) | |
c5aa993b | 3097 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 3098 | |
1bedd215 AC |
3099 | add_com ("step", class_run, step_command, _("\ |
3100 | Step program until it reaches a different source line.\n\ | |
486c7739 MF |
3101 | Usage: step [N]\n\ |
3102 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3103 | reason).")); |
c906108c SS |
3104 | add_com_alias ("s", "step", class_run, 1); |
3105 | ||
1bedd215 AC |
3106 | c = add_com ("until", class_run, until_command, _("\ |
3107 | Execute until the program reaches a source line greater than the current\n\ | |
3e43a32a MS |
3108 | or a specified location (same args as break command) within the current \ |
3109 | frame.")); | |
5ba2abeb | 3110 | set_cmd_completer (c, location_completer); |
c906108c | 3111 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 3112 | |
1bedd215 | 3113 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
3114 | Continue the program up to the given location (same form as args for break \ |
3115 | command).\n\ | |
1bedd215 | 3116 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
3117 | set_cmd_completer (c, location_completer); |
3118 | ||
1bedd215 AC |
3119 | c = add_com ("jump", class_run, jump_command, _("\ |
3120 | Continue program being debugged at specified line or address.\n\ | |
486c7739 | 3121 | Usage: jump <location>\n\ |
c906108c | 3122 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 3123 | for an address to start at.")); |
5ba2abeb | 3124 | set_cmd_completer (c, location_completer); |
c1d780c2 | 3125 | add_com_alias ("j", "jump", class_run, 1); |
c906108c | 3126 | |
b83266a0 | 3127 | if (xdb_commands) |
c94fdfd0 | 3128 | { |
1bedd215 AC |
3129 | c = add_com ("go", class_run, go_command, _("\ |
3130 | Usage: go <location>\n\ | |
c906108c SS |
3131 | Continue program being debugged, stopping at specified line or \n\ |
3132 | address.\n\ | |
3133 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
3134 | expression for an address to start at.\n\ | |
1bedd215 | 3135 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 3136 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 3137 | } |
b83266a0 | 3138 | |
c906108c | 3139 | if (xdb_commands) |
c5aa993b | 3140 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 3141 | |
df983543 | 3142 | add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 3143 | Continue program being debugged, after signal or breakpoint.\n\ |
486c7739 | 3144 | Usage: continue [N]\n\ |
c906108c SS |
3145 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
3146 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
3147 | the breakpoint won't break until the Nth time it is reached).\n\ |
3148 | \n\ | |
3149 | If non-stop mode is enabled, continue only the current thread,\n\ | |
3150 | otherwise all the threads in the program are continued. To \n\ | |
3151 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
3152 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
3153 | add_com_alias ("c", "cont", class_run, 1); |
3154 | add_com_alias ("fg", "cont", class_run, 1); | |
3155 | ||
1bedd215 AC |
3156 | c = add_com ("run", class_run, run_command, _("\ |
3157 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c | 3158 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
3e43a32a MS |
3159 | Input and output redirection with \">\", \"<\", or \">>\" are also \ |
3160 | allowed.\n\n\ | |
3161 | With no arguments, uses arguments last specified (with \"run\" \ | |
3162 | or \"set args\").\n\ | |
c906108c | 3163 | To cancel previous arguments and run with no arguments,\n\ |
1bedd215 | 3164 | use \"set args\" without arguments.")); |
5ba2abeb | 3165 | set_cmd_completer (c, filename_completer); |
c906108c SS |
3166 | add_com_alias ("r", "run", class_run, 1); |
3167 | if (xdb_commands) | |
3168 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 3169 | _("Start debugged program with no arguments.")); |
c906108c | 3170 | |
1bedd215 | 3171 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
3172 | Run the debugged program until the beginning of the main procedure.\n\ |
3173 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 3174 | \"run\" command.")); |
a4d5f2e0 JB |
3175 | set_cmd_completer (c, filename_completer); |
3176 | ||
df983543 MS |
3177 | add_com ("interrupt", class_run, interrupt_target_command, |
3178 | _("Interrupt the execution of the debugged program.\n\ | |
8cae4b3f PA |
3179 | If non-stop mode is enabled, interrupt only the current thread,\n\ |
3180 | otherwise all the threads in the program are stopped. To \n\ | |
3181 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 3182 | |
1bedd215 AC |
3183 | add_info ("registers", nofp_registers_info, _("\ |
3184 | List of integer registers and their contents, for selected stack frame.\n\ | |
3185 | Register name as argument means describe only that register.")); | |
7194c49b | 3186 | add_info_alias ("r", "registers", 1); |
c906108c SS |
3187 | |
3188 | if (xdb_commands) | |
1bedd215 AC |
3189 | add_com ("lr", class_info, nofp_registers_info, _("\ |
3190 | List of integer registers and their contents, for selected stack frame.\n\ | |
3191 | Register name as argument means describe only that register.")); | |
3192 | add_info ("all-registers", all_registers_info, _("\ | |
3193 | List of all registers and their contents, for selected stack frame.\n\ | |
3194 | Register name as argument means describe only that register.")); | |
c906108c SS |
3195 | |
3196 | add_info ("program", program_info, | |
1bedd215 | 3197 | _("Execution status of the program.")); |
c906108c SS |
3198 | |
3199 | add_info ("float", float_info, | |
1bedd215 | 3200 | _("Print the status of the floating point unit\n")); |
c906108c | 3201 | |
e76f1f2e | 3202 | add_info ("vector", vector_info, |
1bedd215 | 3203 | _("Print the status of the vector unit\n")); |
145b16a9 UW |
3204 | |
3205 | add_prefix_cmd ("proc", class_info, info_proc_cmd, | |
3206 | _("\ | |
3207 | Show /proc process information about any running process.\n\ | |
3208 | Specify any process id, or use the program being debugged by default."), | |
3209 | &info_proc_cmdlist, "info proc ", | |
3210 | 1/*allow-unknown*/, &infolist); | |
3211 | ||
3212 | add_cmd ("mappings", class_info, info_proc_cmd_mappings, _("\ | |
3213 | List of mapped memory regions."), | |
3214 | &info_proc_cmdlist); | |
3215 | ||
3216 | add_cmd ("stat", class_info, info_proc_cmd_stat, _("\ | |
3217 | List process info from /proc/PID/stat."), | |
3218 | &info_proc_cmdlist); | |
3219 | ||
3220 | add_cmd ("status", class_info, info_proc_cmd_status, _("\ | |
3221 | List process info from /proc/PID/status."), | |
3222 | &info_proc_cmdlist); | |
3223 | ||
3224 | add_cmd ("cwd", class_info, info_proc_cmd_cwd, _("\ | |
3225 | List current working directory of the process."), | |
3226 | &info_proc_cmdlist); | |
3227 | ||
3228 | add_cmd ("cmdline", class_info, info_proc_cmd_cmdline, _("\ | |
3229 | List command line arguments of the process."), | |
3230 | &info_proc_cmdlist); | |
3231 | ||
3232 | add_cmd ("exe", class_info, info_proc_cmd_exe, _("\ | |
3233 | List absolute filename for executable of the process."), | |
3234 | &info_proc_cmdlist); | |
3235 | ||
3236 | add_cmd ("all", class_info, info_proc_cmd_all, _("\ | |
3237 | List all available /proc info."), | |
3238 | &info_proc_cmdlist); | |
c906108c | 3239 | } |